We consider the problem of inducing withdrawal reflex on a test subject by exposing the subject’s skin to an electromagnetic beam. Heat-sensitive nociceptors in the skin are activated wherever the temperature is abov...We consider the problem of inducing withdrawal reflex on a test subject by exposing the subject’s skin to an electromagnetic beam. Heat-sensitive nociceptors in the skin are activated wherever the temperature is above the activation temperature. Withdrawal reflex occurs when the activated volume reaches a threshold. Previously we studied static beams with 3 types of power density distribution: Gaussian, super-Gaussian, and flat-top. We found that the flaptop is the best and the Gaussian is the worst in their performance with regard to 1) minimizing the time to withdrawal reflex, 2) minimizing the energy consumption and 3) minimizing the maximum temperature increase. The less-than-desirable performance of Gaussian beams is attributed to the uneven distribution of power density resulting in low energy efficiency: near the beam center the high power density does not contribute proportionally to increasing the activated volume;outside the beam effective radius the low power density fails to activate nociceptors. To overcome the drawbacks of Gaussian beams, in this study, we revolve a Gaussian beam around a fixed point to make the power density more uniformly distributed. We optimize the performance over two parameters: the spot size of static beam and the radius of beam revolution. We find that in comparison with a static Gaussian beam, a revolving Gaussian beam can reduce the energy consumption, and at the same time lower the maximum temperature.展开更多
Objective To explore the possibility of infrared objective display of the heat-sensitive （HS） acupoint. Methods In 79 cases of lumbar intervertebral disc protrusion （LIDP） patients, infrared thermograms of the lum...Objective To explore the possibility of infrared objective display of the heat-sensitive （HS） acupoint. Methods In 79 cases of lumbar intervertebral disc protrusion （LIDP） patients, infrared thermograms of the lumbar and back region were taken with a thermal texture maps（TTM） method at a natural state, followed by a heat-sensitive detection with moxibustion method [moxibustion was given at Yaoyangguan （腰阳关GV 3） area for 10 min]. The cases with thermal diffusion and heat transfer on the Yaoyangguan （腰阳关GV 3） area were recorded after ceasing of the suspended moxibustion. Then the infrared thermograms were taken by TTM for the second time, and the changes of infrared thermograms of the waist-back region before and after moxibustion were recorded. Finally, the differences between moxibustion and infrared detection methods in the heat-sensitive state on Yaoyangguan （腰阳关GV 3） area were compared in the LIDP patients. Results Before moxibustion, the infrared radiation intensity most displayed high-temperature characteristics on the Yaoyangguan （腰阳关GV 3） area in the LIDP patients. Compared with the moxibustion method, the sensitivity（true positive rate） was 86.4%, the specificity （true negative rate） was 70.0%, and the accuracy was 82.3%; after moxibustion at the Yaoyangguan （腰阳关GV 3） area, the infrared radiation enhanced area obviously extended vertically along the medial waist-back （the Governor Vessel） or horizontally along the Belt Vessel. Compared with the moxibustion method, the sensitivity （true positive rate） was 79.7%, the specificity （true negative rate） was 75.0% and the accuracy was 78.5%. Conclusion The HS state of Yaoyangguan （腰阳关GV 3） area in the LIDP patients can be objectively displayed by the infrared imaging to a certain extent; moxibustion at the HS acupoint produces the thermal phenomena, such as thermal expansion and heat transfer, which can be objectively displayed to a certain extent by the infrared imaging apart from the subjective feeling of the subject.展开更多
Objective To observe the therapeutic difference in treatment of Irishmen with discogenic low back pain （arthritis of cold-damp syndrome type） between heat-sensitive acupoint and acupuncture. Methods Eighty-two patie...Objective To observe the therapeutic difference in treatment of Irishmen with discogenic low back pain （arthritis of cold-damp syndrome type） between heat-sensitive acupoint and acupuncture. Methods Eighty-two patients were randomly assigned to the heat-sensitive group （43 cases） and the acupuncture group （39 cases）. Corresponding heat-sensitive points in the lumbosacral area were selected in the heat-sensitive group. Then moxibustion was performed at the heat-sensitive acupoint, thus conducting the moxibustion sensation. The treatment was ended when the sensation conduction was finished. If there appeared no moxibustion sensation, moxibustion at the corresponding painful point was lasted for 30 min. Needling was performed in the acupuncture group at corresponding Jiájǐ（夹 脊 EX-B 2）, Back-shu point, Wěizhōng （委中 BL 40）; matching points included Huántiào （环跳 GB 30）, Fēngshì（风市 GB 31）, Yánglíngquán （阳陵泉 GB 34）, Zhìbiān （秩边 BL 54）, etc. The waste was irradiated with TDP after needling, with the maintaining time of 30 min. The treatment was carried out twice weekly, four weeks as one therapeutic course. The therapeutic effect was statistically calculated after 8-week treatment. Results Nineteen cases were clinically cured, 20 improved, 4 failed, and the effective rate 90.7%（39/43） in the heat-sensitive group, while 9 clinically cured, 25 improved, 5 failed, and the effective rate 87.2%（34/39） in the acupuncture group. Signif icant difference was shown in the clinically cured case by 2 test （P0.05）. Conclusion Heat-sensitive acupoint was superior to traditional acupuncture in treatment Irishmen with discogenic low back pain.展开更多
Objective To compare the effects between acupuncture combined with moxibustion on heat-sensitive acupoints and acupuncture on irritable bowel syndrome with diarrhea （IBS-D）. Methods Sixty-four cases were randomly di...Objective To compare the effects between acupuncture combined with moxibustion on heat-sensitive acupoints and acupuncture on irritable bowel syndrome with diarrhea （IBS-D）. Methods Sixty-four cases were randomly divided into an acupuncture and moxibustion group （n=32） and an acupuncture group （n=32）. Conventional acupuncture at Tiānshū （天枢 ST 14）, Zúsānlǐ （足三里 ST 36）, Gōngsūn （公孙 SP 4） and other acupoints was used in the two groups, and moxibustion on heat-sensitive acupoints was added in the acupuncture and moxibustion group. The treatment frequency was 5 times a week, and 4 weeks were a course. After 2 courses, the therapeutic effect was evaluated. Results The clinical symptom scores after treatment in two groups decreased obviously than those before treatment （both P〈0.01）. The cured and markedly effective rate in the acupuncture and moxibustion group was 87.5% （28/32）, and that in the acupuncture group was 37.5% （12/32）, so the effect in the acupuncture and moxibustion group was better than that in the acupuncture group （P〈0.01）. The improvement of all kinds of symptom scores in the acupuncture and moxibustion group was all better than that in the acupuncture group （all P〈0.05）. Conclusion The clinical effect of acupuncture combined with moxibustion on heat-sensitive acupoints on IBS-D is better than that of acupuncture.展开更多
Objective To systematically evaluate the efficacy of heat-sensitive moxibustion in treatment of cervical spondylotic radiculopathy（CSR）. Methods Chinese National Knowledge Infrastructure（CNKI）, China Biology Medi...Objective To systematically evaluate the efficacy of heat-sensitive moxibustion in treatment of cervical spondylotic radiculopathy（CSR）. Methods Chinese National Knowledge Infrastructure（CNKI）, China Biology Medical（CBM） database, Chinese Science and Technology Periodical Database（VIP）, Wan Fang Data, Pubmed and Cochrane Library were retrieved to search the randomized controlled trials（RCT） on heat-sensitive moxibustion in treatment of CSR, and Meta analysis was conducted by applying Rev Man 5.3 software. Results Eventually, 10 papers were included in this study, including 1008 subjects. Meta analysis result showed： the total effective rate of treatment group was higher than that of control group, and the difference was statistically significant [RR=1.13, 95%CI（1.06, 1.21）, Z=3.54, P=0.000 4]; the cure rate of treatment group was higher than that of control group, and the difference was statistically significant [RR=1.80, 95%CI（1.52, 2.13）, Z=6.82, P〈0.000 01]; the improvement of short-form Mc Gill pain questionnaire（SF-MPQ） of treatment group was superior to that of control group, and the difference was statistically significant [MD=–4.44, 95%CI（–6.38,-2.50）, Z=4.49, P〈0.000 01]; visual analogue scale（VAS） of treatment group was lower than that of control group, and the difference was statistically significant [MD=-0.36, 95%CI（-0.50, –0.23）, Z=5.42, P〈0.00001]; and the improvement of interleukin-6（IL-6） of treatment group was superior to that of control group, and the difference was statistically significant [MD=–7.32, 95%CI（-11.49, –3.14）, Z=3.44, P=0.000 6]. Conclusion It is indicated from the Meta analysis result that the clinical efficacy of heat-sensitive moxibustion or acupuncture combined with heat-sensitive moxibustion in treatment of CSR is superior to that of simple acupuncture or traditional suspended moxibustion, providing a new therapeutic method for treatment of CSR. However, the abovementioned conclusion still needs to be confirmed through randomized blind controlled trials with high quality and large sample size since the sample size of included studies was small, and the quality was low.展开更多
Objective To compare the clinical efficacy between electroacupuncture combined with heat-sensitive moxibustion and western medicine for treatment of premature ovarian failure. Methods Eighty patients were randomly div...Objective To compare the clinical efficacy between electroacupuncture combined with heat-sensitive moxibustion and western medicine for treatment of premature ovarian failure. Methods Eighty patients were randomly divided into an electroacupuncture combined with heat-sensitive moxibustion group（group A, n=40） and a western medicine group（group B, n=40）. Zǐgōng（子宫 EX-CA 1）, Xuèhǎi（血海 SP 10）, Gānshū（肝俞 BL 18） and Shènshū（肾俞 BL 23） were selected in group A, and acupuncture combined with heat-sensitive moxibustion were carried out. Climen was taken orally in group B. The score changes of menstrual cycle, tidal fever and sweatiness, emotional excitement, soreness and weakness of waist and knees, dizziness and tinnitus, as well as the cured and markedly effective rate of the patients in the two groups before and after two courses of treatment were compared. Results The cured and markedly effective rate of group A was 72.5%（29/40）, which was superior to that of group B（37.5%, 15/40）（ P〈0.05）. The symptom scores were improved significantly in the two groups after treatment（all P〈0.05）, and the improvement in group A was superior to that in group B（all P〈0.05）. Conclusion The efficacy of electroacupuncture combined with heat-sensitive moxibustion is superior to that of conventional western medicine in treatment of premature ovarian failure.展开更多
OBJECTIVE: To systematically evaluate the effectiveness and safety of heat-sensitive moxibustion(HSM)onasthma.METHODS: Large databases in China and overseas were searched by electronic and manual means to collect info...OBJECTIVE: To systematically evaluate the effectiveness and safety of heat-sensitive moxibustion(HSM)onasthma.METHODS: Large databases in China and overseas were searched by electronic and manual means to collect information on randomized controlled trials(RCTs).Two evaluators independently extracted data and evaluated the quality of RCTs according to Cochrane Review Handbook v5.0. RevMan v5.0.20 was used for statisticalanalyses.RESULTS: Fourteen RCTs involving 637 patients were collected.Thirteen RCTs compared the effects of HSM and Western Medicine. After 3-month treatment and after 6-month follow-up, there was no significant difference in effective rate [relative risk(RR)=1.01, 95% CI(0.92, 1.12), and 1.12,(0.93, 1.36),respectively], in the asthma control test score of asthma symptoms [weighted mean difference(WMD)=﹣1.54, 95% CI(﹣3.54, 0.47), and 1.41,(﹣0.48, 3.29), respectively] and in the forced expiratory volumein 1 second(FEV1)and peak expiratory flow(PEF). One RCT compared the effect of HSM with warm-suspended moxibustion. After 6-month follow-up, there was a significant difference in FEV1 and PEF [WMD=0.51, 95% CI(0.10, 0.92), and 1.78,(1.06, 2.50), respectively]. After 3-month treatment,there was no significant difference between the two groups. One RCT compared the effect of HSM with acupoint application. After 3-month treatment, there was no significant difference in the effectiverate[RR=0.68,95%CI(0.42,1.12)].CONCLUSION: HSM did not show superiority to conventional Western Medicine and acupoint application in terms of curative effects, and may be superior to warm-suspended moxibustion with regard to long-term curative effects. Because of low quality of the included RCTs, this conclusion must be bolstered with higher-quality RCTs.展开更多
Heat-sensitive moxibustion has neuroprotective effects against focal cerebral ischemia/reperfusion injury, however its mechanism of action remains unclear. In this study, rat models of focal cerebral ischemia/reperfus...Heat-sensitive moxibustion has neuroprotective effects against focal cerebral ischemia/reperfusion injury, however its mechanism of action remains unclear. In this study, rat models of focal cerebral ischemia/reperfusion injury were treated with suspended moxibustion at acupoint Dazhui （DU14） for 35 minutes. Results showed that suspended moxibustion decreased infarct volume, reduced cortical myeloperoxidase activity, and suppressed serum levels of proinflammatory cytokines in rats with focal cerebral ischemia/reperfusion injury. Our experimental findings indicated that heat-sensitive moxibustion can attenuate inflammation and promote repair after focal cerebral ischemia/reperfusion injury.展开更多
Objective:To observe the clinical therapeutic effect of adjuvant treatment with heat-sensitive moxibustion for coronavirus disease 2019(COVID-19)of the ordinary type.Methods:A total of 42 patients with COVID-19 of the...Objective:To observe the clinical therapeutic effect of adjuvant treatment with heat-sensitive moxibustion for coronavirus disease 2019(COVID-19)of the ordinary type.Methods:A total of 42 patients with COVID-19 of the ordinary type were adopted.Shenque(神阙CV8)and Tianshu(天枢ST25)were selected.Heat-sensitive moxibustion was operated according to the required standard,40 min to 60 min each time,once daily.Before and after moxibustion,the improvements in clinical symptoms were evaluated,such as chest oppression,poor appetite,lassitude and negative emotions.Results:(1)The number of cases and the incidence was 21 cases(50.0%),24 cases(57.1%)and 26 cases(61.9%)for chest oppression,poor appetite and lassitude before heat-sensitive moxibustion.The number of cases was reduced to be 10 cases(23.8%),7 cases(16.7%)and 4 cases(9.5%)after the 1 st treatment of heat-sensitive moxibustion for chest oppression,poor appetite,and lassitude.It was reduced to be 11 cases(26.2%),8 cases(19.0%)and 4 cases(9.5%)after the 2 nd treatment of moxibustion and it was reduced to be 18 cases(42.9%),10 cases(23.8%)and 6 cases(14.3%)after the 3 rd treatment of moxibustion.The incidences of the symptoms were all reduced obviously as compared with those before treatment.(2)Before treatment with heat-sensitive moxibustion,there were 24 cases of negative emotions(57.1%).It was reduced to be 16 cases(38.1%),11 cases(26.2%)and 3 cases(7.1%)after the 1 st,2 nd and 3 rd treatment of heat-sensitive moxibustion successively.The incidences were all reduced obviously as compared with those before treatment.(3)After the 1 st treatment,the active acceptance rate of heat-sensitive moxibustion was 100%(42/42)in the patients,higher than 11.9%(5/42)before treatment.Conclusion:Adjuvant treatment with heat-sensitive moxibustion effectively relieves the symptoms of COVID-19 such as chest oppression,poor appetite and lassitude,and alleviates the negative emotions,such as tension and anxiety.This therapy improves the therapeutic effect of COVID-19 and deserves to be promoted in clinical practice.展开更多
Redacted by Specialty Committee of Heat-sensitive Moxibustion of WFCMS,Standardized Manipulations of Heat-sensitive Moxibustion(HSM).Therapy states the scope,normative references,terms and definitions,preoperative pre...Redacted by Specialty Committee of Heat-sensitive Moxibustion of WFCMS,Standardized Manipulations of Heat-sensitive Moxibustion(HSM).Therapy states the scope,normative references,terms and definitions,preoperative preparations,operation methods and procedure,indications and notice of HSM Therapy.展开更多
Background:To explore the potential mechanism of thermal moxibustion in the treatment of i schemic strok e by using the method of network pharmacology and to partially explain the mechanism of acupoint meridian qi sen...Background:To explore the potential mechanism of thermal moxibustion in the treatment of i schemic strok e by using the method of network pharmacology and to partially explain the mechanism of acupoint meridian qi sense transmission.Methods:In this project,a training set was formed by researching the intersection of the reported components of M ugwort leaves that entered the blood after combustion and obtained the targets of heat-sensitive moxibustion meridian qi sensing and thermal effect by querying the literature.The Encyclopedia of Tr ad itional Chinese Medicine is used to search and screen the highly active chemical constituents of Artemisia argyi to predict potential targets;search i schemic strok e-related targets through GeneCards,O nline Mendelian Inheritance in Man,Drugbank databases.Gene Oncology functional analysis and Kyoto Encyclopedia of Genes and Genomes signaling pathway enrichment analysis were performed on the potential targets of the blood components of Artemisia argyi and molecular docking simulated the binding activity of key candidate active components and core genes.Results:192 ischemic stroke disease targets with r elevance score greater than 10 were screened out for analysis.Through the database Encyclopedia of Tr ad itional Chinese Medicine query of the action targets(243)of Mugwort leaves and the intersection of heat-sensitive moxibustion effect targets and ischemic stroke-related targets,a Venn diagram was drawn and a total of 17 were obtained.Finally,the effective components of Mugwort leaves into the blood were screened out.Five main volatile components were molecularly docked with 17 targets and 9 targets of acupoint meridian gas sensing/thermal effect.The docking results showed that the main volatile components showed good affinities for binding to key targets,respectively.Conclusion:Using the characteristics of“multi-component-multi-target-multi-pathway”of traditional Chinese medicine,the potential mechanism of action of Artemisia argyi in the treatment of i schemic strok e is explored,which provides a certain basis for the follow-up scientific research and clinical application of Artemisia argyi in the treatment of IS.展开更多
Ischemic stroke is universally acknowledged as a common cause of long-term disability or even death. Suspended moxibustion, an indirect form of moxibustion, is when moxibustion is placed superficially over the skin wi...Ischemic stroke is universally acknowledged as a common cause of long-term disability or even death. Suspended moxibustion, an indirect form of moxibustion, is when moxibustion is placed superficially over the skin without being in contact with it. Some researchers have used this method to treat stroke patients, but strong evidence of its therapeutic effectiveness is lacking. However, the effect of traditional suspended moxibustion has recently been improved with the development of heat-sensitive suspended moxibustion. Our previous studies showed that moxibustion for 35 min provided a more effective treatment strategy than moxibustion for 15 min, and moxibustion by 35 min with tail temperature increase had a better outcome than that without, however, the mechanism underlying the effect is not clear. In this study, we treated the stroke rats with moxibustion by 35min and divided them into non-heat sensitive moxibustion(NHSM) group and heat sensitive moxibustion (HSM) group according to difference in the tail temperature increase, then we compared the effect and investigated the mechanisms between NHSM and HSM. We found that HSM significantly decreased tail-flick latency, increased neurological function score, decreased infarct volume, reduced inflammatory cells, decreased the expression of inflammatory factor ICAM-1 and reduced the expression of NF-κB p65 and p-IKKα/β in rats with focal cerebral ischemia/reperfusion injury. Our experimental findings revealed that HSM exerted its anti-inflammatory and neuroprotective effects from MCAO-induced injury by decreasing the expression of the NF-κB signaling pathway.展开更多
Chronic pain affects over 30%of the global adult population,significantly impairing quality of life,physical function,and psychological well-being,while imposing a substantial personal and economic burden[1].As the gl...Chronic pain affects over 30%of the global adult population,significantly impairing quality of life,physical function,and psychological well-being,while imposing a substantial personal and economic burden[1].As the global population continues to age,there is an urgent and unmet need to effectively prevent,assess,and manage chronic pain in older adults.Although age-related changes in pain perception,processing,and coping mechanisms have been increasingly recognized over recent decades,many aspects of the relationship between aging and pain remain poorly understood.In addition,aging is associated with increased susceptibility to chronic pain conditions,particularly following peripheral nerve injury[2,3].However,the incomplete understanding of the mechanisms underlying pain in the aged population represents a major barrier to the development of effective medical treatment is often insufficient to provide complete pain relief[4,5].Targeted interventions for geriatric pain management are needed.Therefore,elucidating the impact of aging on the pathogenesis of chronic pain is urgently needed.展开更多
Objective To explore the clinical effects of heat-sensitizing moxibustion on functional anorectal pain. Methods Thirty six patients with functional anorectal pain were treated with moxibustion on heat-sensitive acupun...Objective To explore the clinical effects of heat-sensitizing moxibustion on functional anorectal pain. Methods Thirty six patients with functional anorectal pain were treated with moxibustion on heat-sensitive acupuncture points.The heat-sensitized points include Chángqiáng（长强 GV l）, Cìliáo（次髎 BL 32）, Yāoshū（腰俞 GV 2）, and local perianal points. A course of treatment consisted of treatment at each heat-sensitized point for 15 min once per day for 10 days. The therapeutic effects were observed after continuous treatment for 3 treatment cycles. Results Twelve cases were cured, eleven cases had effective results, and 3 cases were ineffective. The total effectiveness rate was 91.7%. The visual analog scale（VAS） total score was 6.1±1.52 before treatment and was 1.63±1.05 after treatment, showing a statistically significant difference（P〈0.01）. Conclusion Heat-sensitization moxibustion can significantly relieve functional anorectal pain.展开更多
Retina nociceptor,as a key sensory receptor,not only enables the transport of warning signals to the human central nervous system upon its exposure to noxious stimuli,but also triggers the motor response that minimize...Retina nociceptor,as a key sensory receptor,not only enables the transport of warning signals to the human central nervous system upon its exposure to noxious stimuli,but also triggers the motor response that minimizes potential sensitization.In this study,the capability of two-dimensional all-oxide-heterostructured artificial nociceptor as a single device with tunable properties was confirmed.Newly designed nociceptors utilize ultra-thin sub-stoichiometric TiO2–Ga2O3 heterostructures,where the thermally annealed Ga2O3 films play the role of charge transfer controlling component.It is discovered that the phase transformation in Ga2O3 is accompanied by substantial jump in conductivity,induced by thermally assisted internal redox reaction of Ga2O3 nanostructure during annealing.It is also experimentally confirmed that the charge transfer in alloxide heterostructures can be tuned and controlled by the heterointerfaces manipulation.Results demonstrate that the engineering of heterointerfaces of two-dimensional(2D)films enables the fabrication of either high-sensitive TiO2–Ga2O3(Ar)or high-threshold TiO2–Ga2O3(N2)nociceptors.The hypersensitive nociceptor mimics the functionalities of corneal nociceptors of human eye,whereas the delayed reaction of nociceptor is similar to high-threshold nociceptive characteristics of human sensory system.The long-term stability of 2D nociceptors demonstrates the capability of heterointerfaces engineering for e ective control of charge transfer at 2D heterostructured devices.展开更多
Topical irritants such as capsaicin(CAP),peppermint oil(PO),and mustard oil(MO)are effective in relieving inflammatory muscle pain.We investigated the effects of topical irritants in a rat model of inflammatory muscle...Topical irritants such as capsaicin(CAP),peppermint oil(PO),and mustard oil(MO)are effective in relieving inflammatory muscle pain.We investigated the effects of topical irritants in a rat model of inflammatory muscle pain produced by injecting complete Freund's adjuvant(CFA)into the tibialis anterior muscle.CFAinduced mechanical hypersensitivity and the spontaneous activity of muscular nociceptive afferents,and decreased weight-bearing of the hindlimb were relieved by topical application of CAP,PO,or MO on the skin overlying the inflamed muscle.The effects of topical irritants were abolished when applied to the skin on the ipsilateral plantar region or on the contralateral leg,or when the relevant cutaneous nerve or dorsal root was transected.Our results demonstrated that topical irritants may alleviate inflammatory muscle pain via activating cutaneous nociceptors and subsequently inhibiting the abnormal activity of muscular nociceptive neurons.展开更多
We want to explore the analgesic brain effect of the moxibustion at heat-sensitized Yaoyangguan(GV3)in patients with lumbar disc herniation(LDH)and myofascial pain syndrome(MPS).In an assessor-blinded observational st...We want to explore the analgesic brain effect of the moxibustion at heat-sensitized Yaoyangguan(GV3)in patients with lumbar disc herniation(LDH)and myofascial pain syndrome(MPS).In an assessor-blinded observational study,we will include 15 LDH and 15 MPS.They will accept same treatment of heat-sensitive moxibustion at Yaoyangguan(GV3).The resting-state functionality magnetic resonance imaging image data of brain activities before and after treatment will be analyzed by mean fractional amplitude of low-frequency fluctuation,regional homogeneity analysis and brain functional connection.We select seed of first sensory cortex,second sensory cortex,insula cortex,periaqueductal gray and anterior cingulate cortex as the regions of interest to analyse the relationship between brain functional connectivity of pain-related networks and clinical data.Our study could disclose key brain targets and central response characteristics of the analgesic brain effect and the brain functional connection of heat-sensitive moxibustion.展开更多
Previously we introduced a concise dose-response model for the heat-induced withdrawal reflex caused by millimeter wave radiation. The model predicts the occurrence of withdrawal reflex from the given spatial temperat...Previously we introduced a concise dose-response model for the heat-induced withdrawal reflex caused by millimeter wave radiation. The model predicts the occurrence of withdrawal reflex from the given spatial temperature profile. It was formulated on the assumption that the density of nociceptors in skin is uniform, independent of the depth. The model has only two parameters: the activation temperature of heat-sensitive nociceptors and the critical threshold on the activated volume for triggering withdrawal reflex. In this study, we consider the case of depth-dependent nociceptor density in skin. We use a general parametric form with a scaling parameter in the depth direction to represent the nociceptor density. We analyze system behaviors for four density types of this form. Based on the theoretical results, we develop a methodology for 1) identifying from test data the density form of nociceptors distribution, 2) finding from test data the scaling parameter in the density form, and 3) determining from test data the activation temperature of nociceptors.展开更多
Noxious mechanical information is transmitted through molecularly distinct nociceptors,with pinprickevoked sharp sensitivity via A-fiber nociceptors marked by developmental expression of the neuropeptide Y receptor 2(...Noxious mechanical information is transmitted through molecularly distinct nociceptors,with pinprickevoked sharp sensitivity via A-fiber nociceptors marked by developmental expression of the neuropeptide Y receptor 2(Npy2 r)and von Frey filament-evoked punctate pressure information via unmyelinated C fiber nociceptors marked by MrgprD.However,the molecular programs controlling their development are only beginning to be understood.Here we demonstrate that Npy2 r-expressing sensory neurons are in fact divided into two groups,based on transient or persistent Npy2 r expression.Npy2 r-transient neurons are myelinated,likely including A-fiber nociceptors,whereas Npy2 r-persistent ones belong to unmyelinated pruriceptors that co-express Nppb.We then showed that the transcription factors NFIA and Runx1 are necessary for the development of Npy2 r-transient A-fiber nociceptors and MrgprD^+C-fiber nociceptors,respectively.Behaviorally,mice with conditional knockout of Nfia,but not Runx1 showed a marked attenuation of pinprick-evoked nocifensive responses.Our studies therefore identify a transcription factor controlling the development of myelinated nociceptors.展开更多
Vulvodynia is a prevalent form of chronic pain, most com- monly affecting the vaginal vestibule （vestibulodynia） （Pukall et al., 2016）. Women with vulvodynia describe intense pain in response to light touch of the...Vulvodynia is a prevalent form of chronic pain, most com- monly affecting the vaginal vestibule （vestibulodynia） （Pukall et al., 2016）. Women with vulvodynia describe intense pain in response to light touch of the affected region, such that sexual function and other activities can be severely limited. Medical costs associated with vulvodynia are high, exceeding $21 billion annually in the United States （Xie et al., 2012）. The high level of direct medical costs has been linked to high treatment failure rates. Many women with the disorder consult multiple practitioners and undergo multiple courses of treatment with limited benefit.展开更多
文摘We consider the problem of inducing withdrawal reflex on a test subject by exposing the subject’s skin to an electromagnetic beam. Heat-sensitive nociceptors in the skin are activated wherever the temperature is above the activation temperature. Withdrawal reflex occurs when the activated volume reaches a threshold. Previously we studied static beams with 3 types of power density distribution: Gaussian, super-Gaussian, and flat-top. We found that the flaptop is the best and the Gaussian is the worst in their performance with regard to 1) minimizing the time to withdrawal reflex, 2) minimizing the energy consumption and 3) minimizing the maximum temperature increase. The less-than-desirable performance of Gaussian beams is attributed to the uneven distribution of power density resulting in low energy efficiency: near the beam center the high power density does not contribute proportionally to increasing the activated volume;outside the beam effective radius the low power density fails to activate nociceptors. To overcome the drawbacks of Gaussian beams, in this study, we revolve a Gaussian beam around a fixed point to make the power density more uniformly distributed. We optimize the performance over two parameters: the spot size of static beam and the radius of beam revolution. We find that in comparison with a static Gaussian beam, a revolving Gaussian beam can reduce the energy consumption, and at the same time lower the maximum temperature.
基金Supported by National Natural Science Fund:30760320National Key Basic Research Development Project("973" Project):2009 CB 522902Jiangxi Provincial 2007 Key Science and Technique Innovation Project
文摘Objective To explore the possibility of infrared objective display of the heat-sensitive （HS） acupoint. Methods In 79 cases of lumbar intervertebral disc protrusion （LIDP） patients, infrared thermograms of the lumbar and back region were taken with a thermal texture maps（TTM） method at a natural state, followed by a heat-sensitive detection with moxibustion method [moxibustion was given at Yaoyangguan （腰阳关GV 3） area for 10 min]. The cases with thermal diffusion and heat transfer on the Yaoyangguan （腰阳关GV 3） area were recorded after ceasing of the suspended moxibustion. Then the infrared thermograms were taken by TTM for the second time, and the changes of infrared thermograms of the waist-back region before and after moxibustion were recorded. Finally, the differences between moxibustion and infrared detection methods in the heat-sensitive state on Yaoyangguan （腰阳关GV 3） area were compared in the LIDP patients. Results Before moxibustion, the infrared radiation intensity most displayed high-temperature characteristics on the Yaoyangguan （腰阳关GV 3） area in the LIDP patients. Compared with the moxibustion method, the sensitivity（true positive rate） was 86.4%, the specificity （true negative rate） was 70.0%, and the accuracy was 82.3%; after moxibustion at the Yaoyangguan （腰阳关GV 3） area, the infrared radiation enhanced area obviously extended vertically along the medial waist-back （the Governor Vessel） or horizontally along the Belt Vessel. Compared with the moxibustion method, the sensitivity （true positive rate） was 79.7%, the specificity （true negative rate） was 75.0% and the accuracy was 78.5%. Conclusion The HS state of Yaoyangguan （腰阳关GV 3） area in the LIDP patients can be objectively displayed by the infrared imaging to a certain extent; moxibustion at the HS acupoint produces the thermal phenomena, such as thermal expansion and heat transfer, which can be objectively displayed to a certain extent by the infrared imaging apart from the subjective feeling of the subject.
文摘Objective To observe the therapeutic difference in treatment of Irishmen with discogenic low back pain （arthritis of cold-damp syndrome type） between heat-sensitive acupoint and acupuncture. Methods Eighty-two patients were randomly assigned to the heat-sensitive group （43 cases） and the acupuncture group （39 cases）. Corresponding heat-sensitive points in the lumbosacral area were selected in the heat-sensitive group. Then moxibustion was performed at the heat-sensitive acupoint, thus conducting the moxibustion sensation. The treatment was ended when the sensation conduction was finished. If there appeared no moxibustion sensation, moxibustion at the corresponding painful point was lasted for 30 min. Needling was performed in the acupuncture group at corresponding Jiájǐ（夹 脊 EX-B 2）, Back-shu point, Wěizhōng （委中 BL 40）; matching points included Huántiào （环跳 GB 30）, Fēngshì（风市 GB 31）, Yánglíngquán （阳陵泉 GB 34）, Zhìbiān （秩边 BL 54）, etc. The waste was irradiated with TDP after needling, with the maintaining time of 30 min. The treatment was carried out twice weekly, four weeks as one therapeutic course. The therapeutic effect was statistically calculated after 8-week treatment. Results Nineteen cases were clinically cured, 20 improved, 4 failed, and the effective rate 90.7%（39/43） in the heat-sensitive group, while 9 clinically cured, 25 improved, 5 failed, and the effective rate 87.2%（34/39） in the acupuncture group. Signif icant difference was shown in the clinically cured case by 2 test （P0.05）. Conclusion Heat-sensitive acupoint was superior to traditional acupuncture in treatment Irishmen with discogenic low back pain.
文摘Objective To compare the effects between acupuncture combined with moxibustion on heat-sensitive acupoints and acupuncture on irritable bowel syndrome with diarrhea （IBS-D）. Methods Sixty-four cases were randomly divided into an acupuncture and moxibustion group （n=32） and an acupuncture group （n=32）. Conventional acupuncture at Tiānshū （天枢 ST 14）, Zúsānlǐ （足三里 ST 36）, Gōngsūn （公孙 SP 4） and other acupoints was used in the two groups, and moxibustion on heat-sensitive acupoints was added in the acupuncture and moxibustion group. The treatment frequency was 5 times a week, and 4 weeks were a course. After 2 courses, the therapeutic effect was evaluated. Results The clinical symptom scores after treatment in two groups decreased obviously than those before treatment （both P〈0.01）. The cured and markedly effective rate in the acupuncture and moxibustion group was 87.5% （28/32）, and that in the acupuncture group was 37.5% （12/32）, so the effect in the acupuncture and moxibustion group was better than that in the acupuncture group （P〈0.01）. The improvement of all kinds of symptom scores in the acupuncture and moxibustion group was all better than that in the acupuncture group （all P〈0.05）. Conclusion The clinical effect of acupuncture combined with moxibustion on heat-sensitive acupoints on IBS-D is better than that of acupuncture.
基金Supported by Anhui Provincial Colleges science research platform team building program:2015TD033Provincial demonstrating experiment and practice training center:20100541
文摘Objective To systematically evaluate the efficacy of heat-sensitive moxibustion in treatment of cervical spondylotic radiculopathy（CSR）. Methods Chinese National Knowledge Infrastructure（CNKI）, China Biology Medical（CBM） database, Chinese Science and Technology Periodical Database（VIP）, Wan Fang Data, Pubmed and Cochrane Library were retrieved to search the randomized controlled trials（RCT） on heat-sensitive moxibustion in treatment of CSR, and Meta analysis was conducted by applying Rev Man 5.3 software. Results Eventually, 10 papers were included in this study, including 1008 subjects. Meta analysis result showed： the total effective rate of treatment group was higher than that of control group, and the difference was statistically significant [RR=1.13, 95%CI（1.06, 1.21）, Z=3.54, P=0.000 4]; the cure rate of treatment group was higher than that of control group, and the difference was statistically significant [RR=1.80, 95%CI（1.52, 2.13）, Z=6.82, P〈0.000 01]; the improvement of short-form Mc Gill pain questionnaire（SF-MPQ） of treatment group was superior to that of control group, and the difference was statistically significant [MD=–4.44, 95%CI（–6.38,-2.50）, Z=4.49, P〈0.000 01]; visual analogue scale（VAS） of treatment group was lower than that of control group, and the difference was statistically significant [MD=-0.36, 95%CI（-0.50, –0.23）, Z=5.42, P〈0.00001]; and the improvement of interleukin-6（IL-6） of treatment group was superior to that of control group, and the difference was statistically significant [MD=–7.32, 95%CI（-11.49, –3.14）, Z=3.44, P=0.000 6]. Conclusion It is indicated from the Meta analysis result that the clinical efficacy of heat-sensitive moxibustion or acupuncture combined with heat-sensitive moxibustion in treatment of CSR is superior to that of simple acupuncture or traditional suspended moxibustion, providing a new therapeutic method for treatment of CSR. However, the abovementioned conclusion still needs to be confirmed through randomized blind controlled trials with high quality and large sample size since the sample size of included studies was small, and the quality was low.
基金Supported by Nanchang Municipal Guiding Science and Technology Planning Project:H.K.Z.[2016]No.96,item 19
文摘Objective To compare the clinical efficacy between electroacupuncture combined with heat-sensitive moxibustion and western medicine for treatment of premature ovarian failure. Methods Eighty patients were randomly divided into an electroacupuncture combined with heat-sensitive moxibustion group（group A, n=40） and a western medicine group（group B, n=40）. Zǐgōng（子宫 EX-CA 1）, Xuèhǎi（血海 SP 10）, Gānshū（肝俞 BL 18） and Shènshū（肾俞 BL 23） were selected in group A, and acupuncture combined with heat-sensitive moxibustion were carried out. Climen was taken orally in group B. The score changes of menstrual cycle, tidal fever and sweatiness, emotional excitement, soreness and weakness of waist and knees, dizziness and tinnitus, as well as the cured and markedly effective rate of the patients in the two groups before and after two courses of treatment were compared. Results The cured and markedly effective rate of group A was 72.5%（29/40）, which was superior to that of group B（37.5%, 15/40）（ P〈0.05）. The symptom scores were improved significantly in the two groups after treatment（all P〈0.05）, and the improvement in group A was superior to that in group B（all P〈0.05）. Conclusion The efficacy of electroacupuncture combined with heat-sensitive moxibustion is superior to that of conventional western medicine in treatment of premature ovarian failure.
基金Supported by the National Science and Technology-supported program in the eleventh 5-year plan(No.2006BAI12B04-2)the National 973 Basic Research Program(No.2009CB522902)the State Natural Science Fund(No.81202854)
文摘OBJECTIVE: To systematically evaluate the effectiveness and safety of heat-sensitive moxibustion(HSM)onasthma.METHODS: Large databases in China and overseas were searched by electronic and manual means to collect information on randomized controlled trials(RCTs).Two evaluators independently extracted data and evaluated the quality of RCTs according to Cochrane Review Handbook v5.0. RevMan v5.0.20 was used for statisticalanalyses.RESULTS: Fourteen RCTs involving 637 patients were collected.Thirteen RCTs compared the effects of HSM and Western Medicine. After 3-month treatment and after 6-month follow-up, there was no significant difference in effective rate [relative risk(RR)=1.01, 95% CI(0.92, 1.12), and 1.12,(0.93, 1.36),respectively], in the asthma control test score of asthma symptoms [weighted mean difference(WMD)=﹣1.54, 95% CI(﹣3.54, 0.47), and 1.41,(﹣0.48, 3.29), respectively] and in the forced expiratory volumein 1 second(FEV1)and peak expiratory flow(PEF). One RCT compared the effect of HSM with warm-suspended moxibustion. After 6-month follow-up, there was a significant difference in FEV1 and PEF [WMD=0.51, 95% CI(0.10, 0.92), and 1.78,(1.06, 2.50), respectively]. After 3-month treatment,there was no significant difference between the two groups. One RCT compared the effect of HSM with acupoint application. After 3-month treatment, there was no significant difference in the effectiverate[RR=0.68,95%CI(0.42,1.12)].CONCLUSION: HSM did not show superiority to conventional Western Medicine and acupoint application in terms of curative effects, and may be superior to warm-suspended moxibustion with regard to long-term curative effects. Because of low quality of the included RCTs, this conclusion must be bolstered with higher-quality RCTs.
基金supported by the National Natural Science Foundation of China, No. 81060305
文摘Heat-sensitive moxibustion has neuroprotective effects against focal cerebral ischemia/reperfusion injury, however its mechanism of action remains unclear. In this study, rat models of focal cerebral ischemia/reperfusion injury were treated with suspended moxibustion at acupoint Dazhui （DU14） for 35 minutes. Results showed that suspended moxibustion decreased infarct volume, reduced cortical myeloperoxidase activity, and suppressed serum levels of proinflammatory cytokines in rats with focal cerebral ischemia/reperfusion injury. Our experimental findings indicated that heat-sensitive moxibustion can attenuate inflammation and promote repair after focal cerebral ischemia/reperfusion injury.
基金Key Research and Development Project of Traditional Chinese Medicine in Jiangxi Province:2020J007。
文摘Objective:To observe the clinical therapeutic effect of adjuvant treatment with heat-sensitive moxibustion for coronavirus disease 2019(COVID-19)of the ordinary type.Methods:A total of 42 patients with COVID-19 of the ordinary type were adopted.Shenque(神阙CV8)and Tianshu(天枢ST25)were selected.Heat-sensitive moxibustion was operated according to the required standard,40 min to 60 min each time,once daily.Before and after moxibustion,the improvements in clinical symptoms were evaluated,such as chest oppression,poor appetite,lassitude and negative emotions.Results:(1)The number of cases and the incidence was 21 cases(50.0%),24 cases(57.1%)and 26 cases(61.9%)for chest oppression,poor appetite and lassitude before heat-sensitive moxibustion.The number of cases was reduced to be 10 cases(23.8%),7 cases(16.7%)and 4 cases(9.5%)after the 1 st treatment of heat-sensitive moxibustion for chest oppression,poor appetite,and lassitude.It was reduced to be 11 cases(26.2%),8 cases(19.0%)and 4 cases(9.5%)after the 2 nd treatment of moxibustion and it was reduced to be 18 cases(42.9%),10 cases(23.8%)and 6 cases(14.3%)after the 3 rd treatment of moxibustion.The incidences of the symptoms were all reduced obviously as compared with those before treatment.(2)Before treatment with heat-sensitive moxibustion,there were 24 cases of negative emotions(57.1%).It was reduced to be 16 cases(38.1%),11 cases(26.2%)and 3 cases(7.1%)after the 1 st,2 nd and 3 rd treatment of heat-sensitive moxibustion successively.The incidences were all reduced obviously as compared with those before treatment.(3)After the 1 st treatment,the active acceptance rate of heat-sensitive moxibustion was 100%(42/42)in the patients,higher than 11.9%(5/42)before treatment.Conclusion:Adjuvant treatment with heat-sensitive moxibustion effectively relieves the symptoms of COVID-19 such as chest oppression,poor appetite and lassitude,and alleviates the negative emotions,such as tension and anxiety.This therapy improves the therapeutic effect of COVID-19 and deserves to be promoted in clinical practice.
文摘Redacted by Specialty Committee of Heat-sensitive Moxibustion of WFCMS,Standardized Manipulations of Heat-sensitive Moxibustion(HSM).Therapy states the scope,normative references,terms and definitions,preoperative preparations,operation methods and procedure,indications and notice of HSM Therapy.
文摘Background:To explore the potential mechanism of thermal moxibustion in the treatment of i schemic strok e by using the method of network pharmacology and to partially explain the mechanism of acupoint meridian qi sense transmission.Methods:In this project,a training set was formed by researching the intersection of the reported components of M ugwort leaves that entered the blood after combustion and obtained the targets of heat-sensitive moxibustion meridian qi sensing and thermal effect by querying the literature.The Encyclopedia of Tr ad itional Chinese Medicine is used to search and screen the highly active chemical constituents of Artemisia argyi to predict potential targets;search i schemic strok e-related targets through GeneCards,O nline Mendelian Inheritance in Man,Drugbank databases.Gene Oncology functional analysis and Kyoto Encyclopedia of Genes and Genomes signaling pathway enrichment analysis were performed on the potential targets of the blood components of Artemisia argyi and molecular docking simulated the binding activity of key candidate active components and core genes.Results:192 ischemic stroke disease targets with r elevance score greater than 10 were screened out for analysis.Through the database Encyclopedia of Tr ad itional Chinese Medicine query of the action targets(243)of Mugwort leaves and the intersection of heat-sensitive moxibustion effect targets and ischemic stroke-related targets,a Venn diagram was drawn and a total of 17 were obtained.Finally,the effective components of Mugwort leaves into the blood were screened out.Five main volatile components were molecularly docked with 17 targets and 9 targets of acupoint meridian gas sensing/thermal effect.The docking results showed that the main volatile components showed good affinities for binding to key targets,respectively.Conclusion:Using the characteristics of“multi-component-multi-target-multi-pathway”of traditional Chinese medicine,the potential mechanism of action of Artemisia argyi in the treatment of i schemic strok e is explored,which provides a certain basis for the follow-up scientific research and clinical application of Artemisia argyi in the treatment of IS.
基金We would like to thank the National Natural Science Foun dation of China (81060305, 81660819)the Natural Science Foundation of Jiangxi Province (20151BAB205068), Key Project of Health Commission of Jiangxi province (2014Z003)Natural Science Foundation of Jiangxi University of Traditional Chinese Medicine (2014ZR018,- 2015jzzdxk024) for their supports.
文摘Ischemic stroke is universally acknowledged as a common cause of long-term disability or even death. Suspended moxibustion, an indirect form of moxibustion, is when moxibustion is placed superficially over the skin without being in contact with it. Some researchers have used this method to treat stroke patients, but strong evidence of its therapeutic effectiveness is lacking. However, the effect of traditional suspended moxibustion has recently been improved with the development of heat-sensitive suspended moxibustion. Our previous studies showed that moxibustion for 35 min provided a more effective treatment strategy than moxibustion for 15 min, and moxibustion by 35 min with tail temperature increase had a better outcome than that without, however, the mechanism underlying the effect is not clear. In this study, we treated the stroke rats with moxibustion by 35min and divided them into non-heat sensitive moxibustion(NHSM) group and heat sensitive moxibustion (HSM) group according to difference in the tail temperature increase, then we compared the effect and investigated the mechanisms between NHSM and HSM. We found that HSM significantly decreased tail-flick latency, increased neurological function score, decreased infarct volume, reduced inflammatory cells, decreased the expression of inflammatory factor ICAM-1 and reduced the expression of NF-κB p65 and p-IKKα/β in rats with focal cerebral ischemia/reperfusion injury. Our experimental findings revealed that HSM exerted its anti-inflammatory and neuroprotective effects from MCAO-induced injury by decreasing the expression of the NF-κB signaling pathway.
基金supported by the National Natural Science Foundation of China(82171229 and 82471232).
文摘Chronic pain affects over 30%of the global adult population,significantly impairing quality of life,physical function,and psychological well-being,while imposing a substantial personal and economic burden[1].As the global population continues to age,there is an urgent and unmet need to effectively prevent,assess,and manage chronic pain in older adults.Although age-related changes in pain perception,processing,and coping mechanisms have been increasingly recognized over recent decades,many aspects of the relationship between aging and pain remain poorly understood.In addition,aging is associated with increased susceptibility to chronic pain conditions,particularly following peripheral nerve injury[2,3].However,the incomplete understanding of the mechanisms underlying pain in the aged population represents a major barrier to the development of effective medical treatment is often insufficient to provide complete pain relief[4,5].Targeted interventions for geriatric pain management are needed.Therefore,elucidating the impact of aging on the pathogenesis of chronic pain is urgently needed.
文摘Objective To explore the clinical effects of heat-sensitizing moxibustion on functional anorectal pain. Methods Thirty six patients with functional anorectal pain were treated with moxibustion on heat-sensitive acupuncture points.The heat-sensitized points include Chángqiáng（长强 GV l）, Cìliáo（次髎 BL 32）, Yāoshū（腰俞 GV 2）, and local perianal points. A course of treatment consisted of treatment at each heat-sensitized point for 15 min once per day for 10 days. The therapeutic effects were observed after continuous treatment for 3 treatment cycles. Results Twelve cases were cured, eleven cases had effective results, and 3 cases were ineffective. The total effectiveness rate was 91.7%. The visual analog scale（VAS） total score was 6.1±1.52 before treatment and was 1.63±1.05 after treatment, showing a statistically significant difference（P〈0.01）. Conclusion Heat-sensitization moxibustion can significantly relieve functional anorectal pain.
基金supported by Research and Development Program of the Ghent University Global Campus,South Korea.
文摘Retina nociceptor,as a key sensory receptor,not only enables the transport of warning signals to the human central nervous system upon its exposure to noxious stimuli,but also triggers the motor response that minimizes potential sensitization.In this study,the capability of two-dimensional all-oxide-heterostructured artificial nociceptor as a single device with tunable properties was confirmed.Newly designed nociceptors utilize ultra-thin sub-stoichiometric TiO2–Ga2O3 heterostructures,where the thermally annealed Ga2O3 films play the role of charge transfer controlling component.It is discovered that the phase transformation in Ga2O3 is accompanied by substantial jump in conductivity,induced by thermally assisted internal redox reaction of Ga2O3 nanostructure during annealing.It is also experimentally confirmed that the charge transfer in alloxide heterostructures can be tuned and controlled by the heterointerfaces manipulation.Results demonstrate that the engineering of heterointerfaces of two-dimensional(2D)films enables the fabrication of either high-sensitive TiO2–Ga2O3(Ar)or high-threshold TiO2–Ga2O3(N2)nociceptors.The hypersensitive nociceptor mimics the functionalities of corneal nociceptors of human eye,whereas the delayed reaction of nociceptor is similar to high-threshold nociceptive characteristics of human sensory system.The long-term stability of 2D nociceptors demonstrates the capability of heterointerfaces engineering for e ective control of charge transfer at 2D heterostructured devices.
基金We thank Bo Yuan and Tao Wang from the Institute of Basic Medical Sciences,Chinese Academy of Medical Sciences,Beijing,China,for technical assistance.This work was supported by the National Natural Science Foundation of China(81771205,91632113)the Natural Science Foundation and Major Basic Research Program of Shanghai Municipality,China(16JC1420500 and 16JC1420502)+1 种基金the Chinese Academy of Medical Sciences Innovation Fund for Medical Sciences(2017-I2M-3-008)the National Natural Science Foundation for Young Scientists of China(81600956).
文摘Topical irritants such as capsaicin(CAP),peppermint oil(PO),and mustard oil(MO)are effective in relieving inflammatory muscle pain.We investigated the effects of topical irritants in a rat model of inflammatory muscle pain produced by injecting complete Freund's adjuvant(CFA)into the tibialis anterior muscle.CFAinduced mechanical hypersensitivity and the spontaneous activity of muscular nociceptive afferents,and decreased weight-bearing of the hindlimb were relieved by topical application of CAP,PO,or MO on the skin overlying the inflamed muscle.The effects of topical irritants were abolished when applied to the skin on the ipsilateral plantar region or on the contralateral leg,or when the relevant cutaneous nerve or dorsal root was transected.Our results demonstrated that topical irritants may alleviate inflammatory muscle pain via activating cutaneous nociceptors and subsequently inhibiting the abnormal activity of muscular nociceptive neurons.
基金Supported by Key Project of Jiangxi Provincial Youth Science Foundation:to Explore the Analgesic Mechanism of Brain Functional Network Regulation of moxibustion on Heat-sensitive Acupoints Based on rfMRI and MRS(No.20192ACB21007)Jiangxi Province Introduces and Cultivates Innovative and Entrepreneurial High-level Talent Projects:Brain Functional Network Regulation and Neurobiochemical Mechanism of Heat-sensitive Moxibustion Analgesia(No.jxsq2019201104)。
文摘We want to explore the analgesic brain effect of the moxibustion at heat-sensitized Yaoyangguan(GV3)in patients with lumbar disc herniation(LDH)and myofascial pain syndrome(MPS).In an assessor-blinded observational study,we will include 15 LDH and 15 MPS.They will accept same treatment of heat-sensitive moxibustion at Yaoyangguan(GV3).The resting-state functionality magnetic resonance imaging image data of brain activities before and after treatment will be analyzed by mean fractional amplitude of low-frequency fluctuation,regional homogeneity analysis and brain functional connection.We select seed of first sensory cortex,second sensory cortex,insula cortex,periaqueductal gray and anterior cingulate cortex as the regions of interest to analyse the relationship between brain functional connectivity of pain-related networks and clinical data.Our study could disclose key brain targets and central response characteristics of the analgesic brain effect and the brain functional connection of heat-sensitive moxibustion.
文摘Previously we introduced a concise dose-response model for the heat-induced withdrawal reflex caused by millimeter wave radiation. The model predicts the occurrence of withdrawal reflex from the given spatial temperature profile. It was formulated on the assumption that the density of nociceptors in skin is uniform, independent of the depth. The model has only two parameters: the activation temperature of heat-sensitive nociceptors and the critical threshold on the activated volume for triggering withdrawal reflex. In this study, we consider the case of depth-dependent nociceptor density in skin. We use a general parametric form with a scaling parameter in the depth direction to represent the nociceptor density. We analyze system behaviors for four density types of this form. Based on the theoretical results, we develop a methodology for 1) identifying from test data the density form of nociceptors distribution, 2) finding from test data the scaling parameter in the density form, and 3) determining from test data the activation temperature of nociceptors.
基金supported by the National Natural Science Foundation of China (31771621,31171071 and 31671093)the Research Foundation for Advanced Talents from Hangzhou Normal University and the New York State Stem Cell Science contracts C026429 and C030133。
文摘Noxious mechanical information is transmitted through molecularly distinct nociceptors,with pinprickevoked sharp sensitivity via A-fiber nociceptors marked by developmental expression of the neuropeptide Y receptor 2(Npy2 r)and von Frey filament-evoked punctate pressure information via unmyelinated C fiber nociceptors marked by MrgprD.However,the molecular programs controlling their development are only beginning to be understood.Here we demonstrate that Npy2 r-expressing sensory neurons are in fact divided into two groups,based on transient or persistent Npy2 r expression.Npy2 r-transient neurons are myelinated,likely including A-fiber nociceptors,whereas Npy2 r-persistent ones belong to unmyelinated pruriceptors that co-express Nppb.We then showed that the transcription factors NFIA and Runx1 are necessary for the development of Npy2 r-transient A-fiber nociceptors and MrgprD^+C-fiber nociceptors,respectively.Behaviorally,mice with conditional knockout of Nfia,but not Runx1 showed a marked attenuation of pinprick-evoked nocifensive responses.Our studies therefore identify a transcription factor controlling the development of myelinated nociceptors.
基金A project described in this work regarding innervation changes in the murine vagina in response to inflammation was supported by a grant from the Centre for Neuroscience,Flinders University,Australia
文摘Vulvodynia is a prevalent form of chronic pain, most com- monly affecting the vaginal vestibule （vestibulodynia） （Pukall et al., 2016）. Women with vulvodynia describe intense pain in response to light touch of the affected region, such that sexual function and other activities can be severely limited. Medical costs associated with vulvodynia are high, exceeding $21 billion annually in the United States （Xie et al., 2012）. The high level of direct medical costs has been linked to high treatment failure rates. Many women with the disorder consult multiple practitioners and undergo multiple courses of treatment with limited benefit.
