Oral ulcers are a common ulcerative injury that occurs in the oral mucosa.When occurring,they can cause mucosal pain and affect eating and communication.The oral cavity,characterized by its moist environment and const...Oral ulcers are a common ulcerative injury that occurs in the oral mucosa.When occurring,they can cause mucosal pain and affect eating and communication.The oral cavity,characterized by its moist environment and constant movement of the lips and tongue,presents challenges for conventional drug delivery systems due to its suboptimal adhesion.Therefore,there is a need for the development of adhesive materials specifically designed for use within the oral cavity.In this research,a sticky coacervate incorporating tea polyphenols(TP)was formulated based on the adhesive properties observed in sandcastle worms.The coacervate is composed of Pluronic F68(F68)and TP,synthesized through the coacervation reaction.The F68-TP coacervates are attached to porcine skin easily.It also reduces bacterial viability and has the ability to clear reactive oxygen species.In animal ulcer models,these coacervates demonstrate anti-inflammatory effects and enhance collagen and muscle fiber synthesis.Overall,these adhesive coacervates with antioxidative and antibacterial properties hold potential as a therapeutic option for oral ulcers in the oral cavity.展开更多
Oral ulcers may greatly diminish patient life quality and potentially result in malignant transformations.Using gels or films as pseudomembrane barriers is an effective method for promoting ulcer healing.However,these...Oral ulcers may greatly diminish patient life quality and potentially result in malignant transformations.Using gels or films as pseudomembrane barriers is an effective method for promoting ulcer healing.However,these pseudomembranes face challenges such as saliva flushing,dynamic changes,and the presence of abundant microorganisms in the complex oral environment.Herein,we developed an injectable,photoinduction,in situ-enhanceable oral ulcer repair hydrogel(named as GIL2)by incorporating dynamic phenylboronic acid ester bonds and imidazole ions into a methacrylated gelatin matrix.GIL2 exhibited rapid gelation(3 s),low swelling properties(1.07 g/g),robust tensile strength(56.83 kPa)and high adhesive strength(63.38 kPa),allowing it to adhere effectively to the ulcer surface.Moreover,the GIL2 demonstrated intrinsic antibacterial and antioxidant qualities.Within a diabetic rat model for oral ulcers,GIL2 effectively eased oxidative stress and decreased the inflammation present in ulcerated wounds,thereby greatly hastening the healing process of these ulcers.Together,GIL2 hydrogel demonstrates remarkable adaptability within the oral milieu,revitalizing clinical strategy advancements for treating bacterialinfected oral ulcers.展开更多
Oral ulcers,a common mucosal affliction,severely diminish patients’quality of life due to pain and discomfort.Despite existing treatments,the frequent recurrence of oral ulcers underscores the need for more effective...Oral ulcers,a common mucosal affliction,severely diminish patients’quality of life due to pain and discomfort.Despite existing treatments,the frequent recurrence of oral ulcers underscores the need for more effective therapeutic options.This study aimed to investigate the inhibitory effects of Ponkan(Citrus reticulata‘Ponkan’)extracts and their flavonoid components on oral ulcers,exploring their potential as a natural therapy.Twenty different Ponkan cultivars were selected for flavonoid extraction and analysis.Ultra-performance liquid chromatography(UPLC)and high-resolution mass spectrometry(HRMS)were utilized for substance identification,leading to the discovery of 16 flavonoid compounds.Using an oral ulcer model established in Wistar rats,Ponkan extracts were found to effectively reduce ulcer area and pain sensitivity.The study revealed that four polymethoxyflavones(PMFs)were particularly effective in treating oral ulcers,while hesperidin did not show significant improvement.Mechanistic studies indicated that PMFs could inhibit the phosphorylation of Jak2 and Stat3,whereas hesperidin lacked this effect.This research supports the potential use of Ponkan and its flavonoids as a natural and effective alternative therapy for oral ulcers,with a focus on the role of PMFs in modulating the Jak2-Stat3 pathway,highlighting the possibilities for targeted natural treatments.展开更多
BACKGROUND Orthodontic treatment can easily cause local soft tissue reactions in the oral cavity of patients under mechanical stress,leading to oral mucosal ulcers and affecting their quality of life.At present,only l...BACKGROUND Orthodontic treatment can easily cause local soft tissue reactions in the oral cavity of patients under mechanical stress,leading to oral mucosal ulcers and affecting their quality of life.At present,only limited literature has explored the factors leading to oral ulcers in orthodontic treatment,and these research results are still controversial.AIM To investigate the current status and related factors of oral mucosal ulcers during orthodontic treatment,aiming to provide a valuable reference for preventing this disease in clinical practice.METHODS A total of 587 patients who underwent orthodontic treatment at the Peking University School of Stomatology and Hospital of Stomatology between 2020 and 2022 were selected and allocated to an observation or control group according to the incidence of oral mucosal ulcers during orthodontic therapy.A questionnaire survey was constructed to collect patient data,including basic information,lifestyle and eating habits,treatment details,mental factors,and trace element levels,and a comparative analysis of this data was performed between the two groups.RESULTS A logistic regression model with oral ulcers as the dependent variable was established.The regression results showed that age(≥60 years:odds ratio[OR]:6.820;95%confidence interval[CI]:2.226–20.893),smoking history(smoking:OR:4.434;95%CI:2.527–7.782),toothbrush hardness(hard:OR:2.804;95%CI:1.746–4.505),dietary temperature(hot diet:OR:1.399;95%CI:1.220–1.722),treatment course(>1 year:OR:3.830;95%CI:2.203–6.659),and tooth brushing frequency(>1 time per day:OR:0.228;95%CI:0.138–0.377)were independent factors for oral mucosal ulcers(P<0.05).Furthermore,Zn level(OR:0.945;95%CI:0.927–0.964)was a protective factor against oral ulcers,while the SAS(OR:1.284;95%CI:1.197–1.378)and SDS(OR:1.322;95%CI:1.231–1.419)scores were risk factors.CONCLUSION Age≥60 years,smoking history,hard toothbrush,hot diet,treatment course for>1 year,tooth brushing frequency of≤1 time per day,and mental anxiety are independent risk factors for oral mucosal ulcers.Therefore,these factors should receive clinical attention and be incorporated into the development and optimization of preventive strategies for reducing oral ulcer incidence.展开更多
Oral ulcers can be managed using a variety of biomaterials that deliver drugs or cytokines.However,many patients experience minimal benefits from certain medical treatments because of poor compliance,short retention t...Oral ulcers can be managed using a variety of biomaterials that deliver drugs or cytokines.However,many patients experience minimal benefits from certain medical treatments because of poor compliance,short retention times in the oral cavity,and inadequate drug efficacy.Herein,we present a novel hydrogel patch(SCE2)composed of a biopolymer matrix(featuring ultraviolet-triggered adhesion properties)loaded with cuttlefish ink nanoparticles(possessing pro-healing functions).Applying a straightforward local method initiates the formation of a hydrogel barrier that adheres to mucosal injuries under the influence of ultraviolet light.SCE2 then demonstrates exceptional capabilities for near-infrared photothermal sterilization and neutralization of reactive oxygen species.These properties contribute to the elimination of bacteria and the management of the oxidation process,thus accelerating the healing phase’s progression from inflammation to proliferation.In studies involving diabetic rats with oral ulcers,the SCE2 adhesive patch significantly quickens recovery by altering the inflamed state of the injured area,facilitating rapid re-epithelialization,and fostering angiogenesis.In conclusion,this light-sensitive hydrogel patch offers a promising path to expedited wound healing,potentially transforming treatment strategies for clinical oral ulcers.展开更多
Recurrent oral ulcer is a painful oral mucosal disorder that affects 20%of the world’s population.The lack of a radical cure due to its unknown underlying cause calls for innovative symptomatic treatments.This work r...Recurrent oral ulcer is a painful oral mucosal disorder that affects 20%of the world’s population.The lack of a radical cure due to its unknown underlying cause calls for innovative symptomatic treatments.This work reports a hyaluronic acid-based dissolvablemicroneedle patch(ROUMNpatch,short for recurrent oral ulcer microneedle)loaded with dexamethasone acetate,vitamin C and tetracaine hydrochloride for the treatment of recurrent oral ulcers.The ROUMN patch shows enhancement in both the anti-inflammatory effect elicited by dexamethasone and the pro-proliferation effect of vitamin C.In vitro experiments show that ROUMN has a higher efficiency in suppressing lipopolysaccharide(LPS)-induced interleukin-6(IL-6)expression than dexamethasone alone.Cell proliferation and migrationwere also significantly promoted byROUMNcompared to vitamin C alone.The healing-promoting effect of ROUMN was also verified in vivo using an acetic acid-cauterized oral ulcer model in rats.ROUMN as a treatment accelerated the healing process of oral ulcers,shortening the total healing time to 5 days compared with the 7 days required by treatment using watermelon frost,a commonly used over-the-counter(OTC)drug for oral ulcers.The rapid dissolution of the hyaluronic acid-based microneedles and the superior healing-promoting effect of the drug combination could lead to a broad application prospect of the ROUMN patch in the treatment of recurrent oral ulcers.展开更多
OBJECTIVE To explore the therapeutic effect and its mechanism of persimmon leaf flavonoids(PLF) on rats with oral ulcer. METHODS The oral ulcer model was induced by acetic acid,was used for intervention of Guilin wate...OBJECTIVE To explore the therapeutic effect and its mechanism of persimmon leaf flavonoids(PLF) on rats with oral ulcer. METHODS The oral ulcer model was induced by acetic acid,was used for intervention of Guilin watermelon frost and different dose(20,40 and 80 mg·kg^(-1)) of PLF.Ulcer area was calculated on the fourth and the seventh day after injury; the changes of superoxide dismutase(SOD) and malondialdehyde(MDA) in serum and ulcer tissues were observed; the level of tumor necrosis factor alpha(TNF-alpha) in ulcer tissue was measured. To observe the pathological morphological changes of H-E staining. RESULTS Guilin watermelon frost and PLF(40 and 80 mg·kg^(-1))can reduce the ulcer area(P<0.05); PLF(20,40 and 80 mg·kg^(-1)) can increase the activity of SOD and decrease the content of MDA in serum and ulcer tissue(P<0.05); Guilin watermelon frost and PLF could significantly decrease the levels of TNF-alpha in ulcer tissue(P<0.05),and improve the inflammatory infiltration of ulcer tissue. CONCLUSION PLF has certain therapeutic effects on oral ulcer induced by acetic acid,and the mechanism may be related to improve oxidative damage and reduce inflammatory reaction.展开更多
Objective: This paper aims to investigate the therapeutic effect of the combination of Emilia Sonchifolia and Coptidis Rhizoma on oral ulcer rats. Methods: 36 SD rats of half male and half female were kept for 7 days,...Objective: This paper aims to investigate the therapeutic effect of the combination of Emilia Sonchifolia and Coptidis Rhizoma on oral ulcer rats. Methods: 36 SD rats of half male and half female were kept for 7 days, and 6 rats among them were selected as normal group by random sampling method, and the rest rats were randomly divided into model group, positive control group, Emilia Sonchifolia group, Coptidis Rhizoma group and combined group after the establishment of oral ulcer model. The normal group and model group were given blank film, the positive control group was given Guilin Watermelon Frost, and the Emilia Sonchifolia group, Coptidis Rhizoma group and combined group were given the corresponding oral film, which was administered to the ulcer for 7 days continuously, 2 times per day. The healing of oral ulcer was assessed at the end of the last day of administration, and the ulcer area was calculated on the 1st, 3rd, 5th and 7th days after successful modeling, and the serum levels of IL-2 and TNF-α in rats were detected by Emilia Sonchifolia. Results: The grading of ulcer healing in the positive control group and the combined group was better than the other groups, and the difference was statistically significant when compared with the model group (p Coptidis Rhizoma group, Emilia Sonchifolia group, combined group and positive control group was smaller than that in the model group, and the difference was statistically significant (p Emilia Sonchifolia group, Coptidis Rhizoma group and combined group were all effective in reducing the area of oral ulcer, among which the combined group was more effective. The level of pro-inflammatory factor TNF-α was reduced and the level of anti-inflammatory factor IL-2 was increased in the Emilia Sonchifolia group, Coptidis Rhizoma group and combined group, and the difference was statistically significant (p Conclusion: The combination of Coptidis Rhizoma and Emilia Sonchifolia is effective in the treatment of oral ulcer in rats, and the effect of the combination is better than that of the drug alone.展开更多
Oral ulcer is a kind of ulcerative injury that occurs in the oral mucosa and is very common in clinic.In severe case,it can affect the quality of life of the patients.Western medicine treatment of oral ulcer is often ...Oral ulcer is a kind of ulcerative injury that occurs in the oral mucosa and is very common in clinic.In severe case,it can affect the quality of life of the patients.Western medicine treatment of oral ulcer is often prone to relapse,while the effect of traditional Chinese medicine treatment is remarkable.展开更多
Recurrent oral ulceration,which is small but not easy to cure,seriously affects the quality of life of the patients.This paper analyzes professor Wang Xiaoyan's application of Yinhuotanghuacai to treat oral ulcer ...Recurrent oral ulceration,which is small but not easy to cure,seriously affects the quality of life of the patients.This paper analyzes professor Wang Xiaoyan's application of Yinhuotanghuacai to treat oral ulcer with floating of yang in deficiency condition,which can significantly improve the clinical symptoms of patients and improve the quality of life of patients.展开更多
Objective:To characterize the effects of Qingwei San(QWS)on diabetic oral ulcer(OU)mice with stomach heat pattern through metabolomic analysis.Methods:A stomach heat pattern mouse model was established by treating C57...Objective:To characterize the effects of Qingwei San(QWS)on diabetic oral ulcer(OU)mice with stomach heat pattern through metabolomic analysis.Methods:A stomach heat pattern mouse model was established by treating C57BLKS/J Leprdb/db(db/db)mice with dried Zingiber officinale Rosc.rhizome(Z.officinale,Gan Jiang)decoction by gavage.All model mice had blood glucose levels of≥11.1 m M.Subsequently,OU was induced by Na OH cauterization.After 1 week of administration of QWS,non-targeted metabolomic analysis of serum was conducted using ultra high performance liquid chromatography coupled with mass spectrometry(UHPLC-MS/MS).Results:The non-targeted metabolomics results indicated that tryptophan metabolism,2-oxocarboxylic acid metabolism,serotonergic synapses,amino sugar and nucleotide sugar metabolism,and amino acid biosynthesis were involved in the therapeutic effects of QWS,with tryptophan metabolism playing a predominant role.Conclusion:QWS treatment can significantly improve the pathological status of diabetic OU mice with stomach heat pattern.QWS may regulate the release of inflammatory factors through the tryptophan metabolism pathway.展开更多
Background:Oral ulcer is the most common and easily recurrent disease in stomatology,which influence the patients’communication,normal dietary,and sleep.Evodia rutaecarpa(ER)is a traditional Chinese herbal medicine r...Background:Oral ulcer is the most common and easily recurrent disease in stomatology,which influence the patients’communication,normal dietary,and sleep.Evodia rutaecarpa(ER)is a traditional Chinese herbal medicine recorded in ancient Chinese medical books,which has a medicinal history of more than 2,000 years.Clinically,the application of ER at plantar Yongquan point(KI1)is effective in the treatment of oral ulcer.The purpose of this study was to combine the modern transdermal drug delivery system with traditional Chinese medicine to develop the transdermal absorption patch of ER and apply it to the treatment of oral ulcer at Yongquan point of plantar.Methods:Firstly,the medicinal materials of ER were extracted and the extracted materials were prepared into dispersed ER patch.The formulation and preparation process were screened by orthogonal design method and single factor investigation method.The adhesive and transdermal properties of the patch were used as the evaluation index of the preparation.Secondly,Wistar rats were used as experimental animals to establish a rat model of mouth ulcers.Wistar rats were randomly divided into normal group,model group(A),model group(B),low dose group,medium dose group and high dose group.the efficacy of ER on rat’s oral ulcer model was evaluated through three aspect such as apparent index,pathological index and biochemical index.Results:The patch had suitable adhesion and good skin penetration,which was an effective treatment for oral ulcer.In vivo pharmacodynamic studies,compared with the normal group,the body mass and food intake of rats in each group after modeling decreased,the amount of drinking water increased,the tissue structure of oral mucosa was damaged,and the levels of inflammatory factors(TNF-α,IL-6)and malondialdehyde increased,the levels of anti-inflammatory factors(IL-10),cell growth factor(epidermal growth factor,TGF-β_(1))and superoxide dismutase decreased.Compared with the model group,the body weight and food intake of each dosing group increased,water consumption decreased,the oral mucosal tissue structure was more complete,the levels of TNF-α,IL-6 and malondialdehyde decreased,the levels of IL-10,epidermal growth factor,TGF-β1 and superoxide dismutase increased,and the changes of various indexes were dose-related.Conclusion:ER patch can inhibit inflammatory reaction,enhance the antioxidant defense ability of the body,and promote the repair of damaged oral mucosa,so as to play an effective role in the treatment of oral ulcer.展开更多
Oral ulcer is a kind of ulcerative injury that occurs in the oral mucosa and is very common in clinic.In severe case,it can affect the quality of life of the patients.Western medicine treatment of oral ulcer is often ...Oral ulcer is a kind of ulcerative injury that occurs in the oral mucosa and is very common in clinic.In severe case,it can affect the quality of life of the patients.Western medicine treatment of oral ulcer is often prone to relapse,while the effect of traditional Chinese medicine treatment is remarkable.展开更多
Objective: to explore the clinical treatment effect of banxia xiexin decoction combined with Wucornus officinalis sticking Yongquan point in patients with recurrent oral ulcer. Methods: 104 patients with recurrent ora...Objective: to explore the clinical treatment effect of banxia xiexin decoction combined with Wucornus officinalis sticking Yongquan point in patients with recurrent oral ulcer. Methods: 104 patients with recurrent oral ulcer in outpatient department were selected to participate in the study, and divided into two groups by simple random method: control group, western medicine vitamin treatment, observation group, banxia xiexin decoction plus or minus combined with Wucornus sticking Yongquan point treatment. Each group had 52 cases. The control group was treated with Western medicine, the observation group was treated with traditional Chinese medicine, and the therapeutic effects of the two groups were compared. Results: the total effective rate of observation group was significantly higher than that of control group, data comparison between groups: P < 0.05. Conclusion: banxia xiexin decoction combined with Wucornus sticking Yongquan point can achieve ideal therapeutic effect in the treatment of recurrent oral ulcer.展开更多
Objective: to investigate the correlation between psychological factors and the incidence of recurrent oral ulcer among college students in Mudanjiang area. Methods: 80 cases of recurrent oral ulcer were randomly sele...Objective: to investigate the correlation between psychological factors and the incidence of recurrent oral ulcer among college students in Mudanjiang area. Methods: 80 cases of recurrent oral ulcer were randomly selected from full-time college students in Mudanjiang area, the incidence of recurrent oral ulcer in college students was investigated by questionnaire, the psychological factors affecting the occurrence of the disease were evaluated, and the appropriate psychological intervention was carried out to compare the effects before and after the intervention. Results: 98.75% of the students had different stress events in the course of disease, among which learning pressure was the dominant one. After the intervention, the score of symptom scale was lower than that before the intervention, P < 0.05. Before and after the intervention, there was no difference in P psychosis and L dissimulation tendency, P > 0.05. After the intervention, N neuroticism was lower than before, and E inside and outside tendency was higher than before, P < 0.05. Conclusion: psychological factors are closely related to the occurrence of recurrent oral ulcer, and effective psychological intervention should be taken for college students in Mudanjiang area to reduce the incidence of recurrent oral ulcer.展开更多
Background:Pedunculoside(PE)is a pentacyclic triterpenoid saponin found in the dried barks of the Ilex rotunda Thunb.In traditional Chinese medicine,the juice extracted from various Ilex species is commonly used for t...Background:Pedunculoside(PE)is a pentacyclic triterpenoid saponin found in the dried barks of the Ilex rotunda Thunb.In traditional Chinese medicine,the juice extracted from various Ilex species is commonly used for treating inflammatory diseases.Objective:This study aims to investigate the potential of PE in promoting the healing of oral ulcers in mice and to explore its possible mechanism.Materials and Methods:A mouse model of oral ulcer was established to evaluate the healing promotion effects of PE,and an in-vitro inflammatory cell model was established by using primary fibroblasts isolated from mouse oral mucosal tissue.Gene transcription and protein expression related to cell proliferation,migration,and collagen synthesis were measured.Results:PE showed the highest cure rate of 85.7%for oral ulcers in mice within 7-days treatment.It significantly promoted cell proliferation and collagen secretion in fibroblast in-vitro model.PE also upregulated the gene transcription of Smad3,Col1a1 and Col3a1.Furthermore,PE antagonized the inhibitory effect of WP1066 on STAT3activation,but did not affect cell migration.Conclusion:This study demonstrates that PE has potential therapeutic effects in promoting oral ulcer healing in mice.The improvement was achieved by the increasing collagen synthesis through the upregulation of STAT3 and Smad3 in mucosa fibroblasts.These results provide a preliminary pharmacological work for developing PE as a potential treatment agent for oral ulcers.展开更多
Objective: To analyze the clinical effect of kangfuxin liquid and iodine glycerin in the treatment of recurrent oral ulcer. Methods: A total of 120 patients with recurrent oral ulcer treated in our hospital from Decem...Objective: To analyze the clinical effect of kangfuxin liquid and iodine glycerin in the treatment of recurrent oral ulcer. Methods: A total of 120 patients with recurrent oral ulcer treated in our hospital from December 2019 to December 2020 were selected as the research objects. The patients were divided into control group and observation group according to random number grouping method, with 60 patients in each group. The control group was treated with iodine glycerin, and the observation group was treated with kangfuxin solution. The clinical therapeutic effects of the two groups were compared. Results: There was no significant difference in VAS score between the two groups before treatment (P>0.05), but 1 day, 1 week and 1 month after treatment, VAS score of the observation group was significantly better than that of the control group, and pain symptoms were better improved, the difference was statistically significant (P<0.05). The time of ulcer disappearance in the observation group was faster than that in the control group, and the total effective rate in the observation group was 96.67%, which was higher than that in the observation group (83.33%), the difference was statistically significant (P<0.05). Conclusion: The use of kangfuxin solution for the treatment of recurrent oral ulcer patients can obtain better therapeutic effect, effectively relieve the pain of patients with ulcer, in a shorter time to let the ulcer disappear, and has a higher therapeutic effectiveness, reduce the recurrence of the disease, should be popularized in clinical application.展开更多
Objective: to discuss the curative effect of combined traditional Chinese and western medicine on recurrent oral ulcer. Methods: the data of 92 patients with recurrent oral ulcer were reviewed and randomly divided int...Objective: to discuss the curative effect of combined traditional Chinese and western medicine on recurrent oral ulcer. Methods: the data of 92 patients with recurrent oral ulcer were reviewed and randomly divided into two groups. Different treatment methods were used to compare the clinical effects. Results: the indexes of the study group were better than those of the control group (P < 0.05). Conclusion: combination of traditional Chinese and western medicine has significant effect on recurrent oral ulcer.展开更多
Objective This study aimed to examine the pharmacodynamic effects of Nanyang kiwifruit extract on rats with traumatic oral ulcers and to provide a theoretical basis for its potential clinical application in treating o...Objective This study aimed to examine the pharmacodynamic effects of Nanyang kiwifruit extract on rats with traumatic oral ulcers and to provide a theoretical basis for its potential clinical application in treating oral mucosal diseases.Methods Fifty-four male Sprague Dawley rats were acclimatized for 1 week before being subjected to chemical cauterization to induce oral ulcers.The rats were then divided into six groups:the control group,the model group,Nanyang kiwifruit extract/hydroxyapatite group,the hydroxyapatite group,the ordinary kiwifruit extract group,and Nanyang kiwifruit extract group.The evaluation indicators included the state of ulcer healing,the ulcer area,and the healing period.To assess the pathology of the wounds,three rats from each group were randomly selected on the third and fifth days of drug administration for hematoxylin and eosin(HE)staining.Results Compared with the other groups,Nanyang kiwifruit extract and Nanyang kiwifruit extract/hydroxyapatite group demonstrated a significant reduction in the healing time of oral ulcers,as evidenced by both observation and the HE staining results.The HE staining further revealed that the mucosal epithelium healed more rapidly and the edema recovered faster in the Nanyang kiwifruit extract group and Nanyang kiwifruit extract/hydroxyapatite group than in the other groups.These findings indicate that the Nanyang kiwifruit extract group and Nanyang kiwifruit extract/hydroxyapatite group had a pronounced effect on promoting ulcer healing.Conclusion Nanyang kiwifruit extract and the hydroxyapatite effectively promote ulcer healing and reduce the healing time of oral ulcer wounds.展开更多
基金supported by the National Natural Science Foundation(No.32271468)Sichuan Science and Technology Program(No.2021JDTD0001)+2 种基金1·3·5 Project for disciplines of excellence,West China Hospital,Sichuan University(No.ZYYC23005)the Fundamental Research Funds for the Central Universities(No.2022SCU12046)Innovation Research Project of Sichuan University(No.2022SCUH0046).
文摘Oral ulcers are a common ulcerative injury that occurs in the oral mucosa.When occurring,they can cause mucosal pain and affect eating and communication.The oral cavity,characterized by its moist environment and constant movement of the lips and tongue,presents challenges for conventional drug delivery systems due to its suboptimal adhesion.Therefore,there is a need for the development of adhesive materials specifically designed for use within the oral cavity.In this research,a sticky coacervate incorporating tea polyphenols(TP)was formulated based on the adhesive properties observed in sandcastle worms.The coacervate is composed of Pluronic F68(F68)and TP,synthesized through the coacervation reaction.The F68-TP coacervates are attached to porcine skin easily.It also reduces bacterial viability and has the ability to clear reactive oxygen species.In animal ulcer models,these coacervates demonstrate anti-inflammatory effects and enhance collagen and muscle fiber synthesis.Overall,these adhesive coacervates with antioxidative and antibacterial properties hold potential as a therapeutic option for oral ulcers in the oral cavity.
基金funding from the National Natural Science Foundation of China(Nos.82071170 and 82371016)the Zhejiang Provincial Science and Technology Project for Public Welfare(No.LGF21H140004).
文摘Oral ulcers may greatly diminish patient life quality and potentially result in malignant transformations.Using gels or films as pseudomembrane barriers is an effective method for promoting ulcer healing.However,these pseudomembranes face challenges such as saliva flushing,dynamic changes,and the presence of abundant microorganisms in the complex oral environment.Herein,we developed an injectable,photoinduction,in situ-enhanceable oral ulcer repair hydrogel(named as GIL2)by incorporating dynamic phenylboronic acid ester bonds and imidazole ions into a methacrylated gelatin matrix.GIL2 exhibited rapid gelation(3 s),low swelling properties(1.07 g/g),robust tensile strength(56.83 kPa)and high adhesive strength(63.38 kPa),allowing it to adhere effectively to the ulcer surface.Moreover,the GIL2 demonstrated intrinsic antibacterial and antioxidant qualities.Within a diabetic rat model for oral ulcers,GIL2 effectively eased oxidative stress and decreased the inflammation present in ulcerated wounds,thereby greatly hastening the healing process of these ulcers.Together,GIL2 hydrogel demonstrates remarkable adaptability within the oral milieu,revitalizing clinical strategy advancements for treating bacterialinfected oral ulcers.
基金supported by the Zhejiang Province Natural Science Foundation(LTGN24C020002)the National Natural Science Foundation of China(32101932,32072132)+3 种基金the Zhejiang Province Natural Science Foundation Joint Fund Project(LHZSD24C150001)the National Key R&D Program of China(2023YFD2300604)the Fundamental Research Funds for the Central Universities(226-2022-00215)Quzhou Characteristic Citrus Fruit Quality Detection Project(2023-KYY-516103-0008).
文摘Oral ulcers,a common mucosal affliction,severely diminish patients’quality of life due to pain and discomfort.Despite existing treatments,the frequent recurrence of oral ulcers underscores the need for more effective therapeutic options.This study aimed to investigate the inhibitory effects of Ponkan(Citrus reticulata‘Ponkan’)extracts and their flavonoid components on oral ulcers,exploring their potential as a natural therapy.Twenty different Ponkan cultivars were selected for flavonoid extraction and analysis.Ultra-performance liquid chromatography(UPLC)and high-resolution mass spectrometry(HRMS)were utilized for substance identification,leading to the discovery of 16 flavonoid compounds.Using an oral ulcer model established in Wistar rats,Ponkan extracts were found to effectively reduce ulcer area and pain sensitivity.The study revealed that four polymethoxyflavones(PMFs)were particularly effective in treating oral ulcers,while hesperidin did not show significant improvement.Mechanistic studies indicated that PMFs could inhibit the phosphorylation of Jak2 and Stat3,whereas hesperidin lacked this effect.This research supports the potential use of Ponkan and its flavonoids as a natural and effective alternative therapy for oral ulcers,with a focus on the role of PMFs in modulating the Jak2-Stat3 pathway,highlighting the possibilities for targeted natural treatments.
文摘BACKGROUND Orthodontic treatment can easily cause local soft tissue reactions in the oral cavity of patients under mechanical stress,leading to oral mucosal ulcers and affecting their quality of life.At present,only limited literature has explored the factors leading to oral ulcers in orthodontic treatment,and these research results are still controversial.AIM To investigate the current status and related factors of oral mucosal ulcers during orthodontic treatment,aiming to provide a valuable reference for preventing this disease in clinical practice.METHODS A total of 587 patients who underwent orthodontic treatment at the Peking University School of Stomatology and Hospital of Stomatology between 2020 and 2022 were selected and allocated to an observation or control group according to the incidence of oral mucosal ulcers during orthodontic therapy.A questionnaire survey was constructed to collect patient data,including basic information,lifestyle and eating habits,treatment details,mental factors,and trace element levels,and a comparative analysis of this data was performed between the two groups.RESULTS A logistic regression model with oral ulcers as the dependent variable was established.The regression results showed that age(≥60 years:odds ratio[OR]:6.820;95%confidence interval[CI]:2.226–20.893),smoking history(smoking:OR:4.434;95%CI:2.527–7.782),toothbrush hardness(hard:OR:2.804;95%CI:1.746–4.505),dietary temperature(hot diet:OR:1.399;95%CI:1.220–1.722),treatment course(>1 year:OR:3.830;95%CI:2.203–6.659),and tooth brushing frequency(>1 time per day:OR:0.228;95%CI:0.138–0.377)were independent factors for oral mucosal ulcers(P<0.05).Furthermore,Zn level(OR:0.945;95%CI:0.927–0.964)was a protective factor against oral ulcers,while the SAS(OR:1.284;95%CI:1.197–1.378)and SDS(OR:1.322;95%CI:1.231–1.419)scores were risk factors.CONCLUSION Age≥60 years,smoking history,hard toothbrush,hot diet,treatment course for>1 year,tooth brushing frequency of≤1 time per day,and mental anxiety are independent risk factors for oral mucosal ulcers.Therefore,these factors should receive clinical attention and be incorporated into the development and optimization of preventive strategies for reducing oral ulcer incidence.
基金The financial backing for this research comes from the National Natural Science Foundation of China(82371016,21977081,82071170)the Zhejiang Provincial Natural Science Foundation for Distinguished Young Scholar(LR23C100001)+2 种基金the Zhejiang Provincial Science and Technology Project for Public Welfare(LGF21H140004)the Natural Science Foundation of Zhejiang Province(LQ22E030011)the Wenzhou Municipal Science and Technology Project(ZY2019009)。
文摘Oral ulcers can be managed using a variety of biomaterials that deliver drugs or cytokines.However,many patients experience minimal benefits from certain medical treatments because of poor compliance,short retention times in the oral cavity,and inadequate drug efficacy.Herein,we present a novel hydrogel patch(SCE2)composed of a biopolymer matrix(featuring ultraviolet-triggered adhesion properties)loaded with cuttlefish ink nanoparticles(possessing pro-healing functions).Applying a straightforward local method initiates the formation of a hydrogel barrier that adheres to mucosal injuries under the influence of ultraviolet light.SCE2 then demonstrates exceptional capabilities for near-infrared photothermal sterilization and neutralization of reactive oxygen species.These properties contribute to the elimination of bacteria and the management of the oxidation process,thus accelerating the healing phase’s progression from inflammation to proliferation.In studies involving diabetic rats with oral ulcers,the SCE2 adhesive patch significantly quickens recovery by altering the inflamed state of the injured area,facilitating rapid re-epithelialization,and fostering angiogenesis.In conclusion,this light-sensitive hydrogel patch offers a promising path to expedited wound healing,potentially transforming treatment strategies for clinical oral ulcers.
基金the National Natural Science Foundation of China(Nos.62003023,32071407,52073138,52003018 and 52003019)Beijing Natural Science Foundation(No.7212204)Beijing Advanced Innovation Center for Biomedical Engineering and Beihang University.
文摘Recurrent oral ulcer is a painful oral mucosal disorder that affects 20%of the world’s population.The lack of a radical cure due to its unknown underlying cause calls for innovative symptomatic treatments.This work reports a hyaluronic acid-based dissolvablemicroneedle patch(ROUMNpatch,short for recurrent oral ulcer microneedle)loaded with dexamethasone acetate,vitamin C and tetracaine hydrochloride for the treatment of recurrent oral ulcers.The ROUMN patch shows enhancement in both the anti-inflammatory effect elicited by dexamethasone and the pro-proliferation effect of vitamin C.In vitro experiments show that ROUMN has a higher efficiency in suppressing lipopolysaccharide(LPS)-induced interleukin-6(IL-6)expression than dexamethasone alone.Cell proliferation and migrationwere also significantly promoted byROUMNcompared to vitamin C alone.The healing-promoting effect of ROUMN was also verified in vivo using an acetic acid-cauterized oral ulcer model in rats.ROUMN as a treatment accelerated the healing process of oral ulcers,shortening the total healing time to 5 days compared with the 7 days required by treatment using watermelon frost,a commonly used over-the-counter(OTC)drug for oral ulcers.The rapid dissolution of the hyaluronic acid-based microneedles and the superior healing-promoting effect of the drug combination could lead to a broad application prospect of the ROUMN patch in the treatment of recurrent oral ulcers.
基金The project supported by National Undergraduate Training Program for Innovation and Entrepreneurship(201510439015)
文摘OBJECTIVE To explore the therapeutic effect and its mechanism of persimmon leaf flavonoids(PLF) on rats with oral ulcer. METHODS The oral ulcer model was induced by acetic acid,was used for intervention of Guilin watermelon frost and different dose(20,40 and 80 mg·kg^(-1)) of PLF.Ulcer area was calculated on the fourth and the seventh day after injury; the changes of superoxide dismutase(SOD) and malondialdehyde(MDA) in serum and ulcer tissues were observed; the level of tumor necrosis factor alpha(TNF-alpha) in ulcer tissue was measured. To observe the pathological morphological changes of H-E staining. RESULTS Guilin watermelon frost and PLF(40 and 80 mg·kg^(-1))can reduce the ulcer area(P<0.05); PLF(20,40 and 80 mg·kg^(-1)) can increase the activity of SOD and decrease the content of MDA in serum and ulcer tissue(P<0.05); Guilin watermelon frost and PLF could significantly decrease the levels of TNF-alpha in ulcer tissue(P<0.05),and improve the inflammatory infiltration of ulcer tissue. CONCLUSION PLF has certain therapeutic effects on oral ulcer induced by acetic acid,and the mechanism may be related to improve oxidative damage and reduce inflammatory reaction.
文摘Objective: This paper aims to investigate the therapeutic effect of the combination of Emilia Sonchifolia and Coptidis Rhizoma on oral ulcer rats. Methods: 36 SD rats of half male and half female were kept for 7 days, and 6 rats among them were selected as normal group by random sampling method, and the rest rats were randomly divided into model group, positive control group, Emilia Sonchifolia group, Coptidis Rhizoma group and combined group after the establishment of oral ulcer model. The normal group and model group were given blank film, the positive control group was given Guilin Watermelon Frost, and the Emilia Sonchifolia group, Coptidis Rhizoma group and combined group were given the corresponding oral film, which was administered to the ulcer for 7 days continuously, 2 times per day. The healing of oral ulcer was assessed at the end of the last day of administration, and the ulcer area was calculated on the 1st, 3rd, 5th and 7th days after successful modeling, and the serum levels of IL-2 and TNF-α in rats were detected by Emilia Sonchifolia. Results: The grading of ulcer healing in the positive control group and the combined group was better than the other groups, and the difference was statistically significant when compared with the model group (p Coptidis Rhizoma group, Emilia Sonchifolia group, combined group and positive control group was smaller than that in the model group, and the difference was statistically significant (p Emilia Sonchifolia group, Coptidis Rhizoma group and combined group were all effective in reducing the area of oral ulcer, among which the combined group was more effective. The level of pro-inflammatory factor TNF-α was reduced and the level of anti-inflammatory factor IL-2 was increased in the Emilia Sonchifolia group, Coptidis Rhizoma group and combined group, and the difference was statistically significant (p Conclusion: The combination of Coptidis Rhizoma and Emilia Sonchifolia is effective in the treatment of oral ulcer in rats, and the effect of the combination is better than that of the drug alone.
文摘Oral ulcer is a kind of ulcerative injury that occurs in the oral mucosa and is very common in clinic.In severe case,it can affect the quality of life of the patients.Western medicine treatment of oral ulcer is often prone to relapse,while the effect of traditional Chinese medicine treatment is remarkable.
文摘Recurrent oral ulceration,which is small but not easy to cure,seriously affects the quality of life of the patients.This paper analyzes professor Wang Xiaoyan's application of Yinhuotanghuacai to treat oral ulcer with floating of yang in deficiency condition,which can significantly improve the clinical symptoms of patients and improve the quality of life of patients.
基金funded by the Science and Technology Development Fund,Macao,China(007/2020/ALC)Major Basic and Applied Basic Research Projects of Guangdong Province of China(2019B030302005)the National Natural Science Foundation of China(81973535 and 81773960)。
文摘Objective:To characterize the effects of Qingwei San(QWS)on diabetic oral ulcer(OU)mice with stomach heat pattern through metabolomic analysis.Methods:A stomach heat pattern mouse model was established by treating C57BLKS/J Leprdb/db(db/db)mice with dried Zingiber officinale Rosc.rhizome(Z.officinale,Gan Jiang)decoction by gavage.All model mice had blood glucose levels of≥11.1 m M.Subsequently,OU was induced by Na OH cauterization.After 1 week of administration of QWS,non-targeted metabolomic analysis of serum was conducted using ultra high performance liquid chromatography coupled with mass spectrometry(UHPLC-MS/MS).Results:The non-targeted metabolomics results indicated that tryptophan metabolism,2-oxocarboxylic acid metabolism,serotonergic synapses,amino sugar and nucleotide sugar metabolism,and amino acid biosynthesis were involved in the therapeutic effects of QWS,with tryptophan metabolism playing a predominant role.Conclusion:QWS treatment can significantly improve the pathological status of diabetic OU mice with stomach heat pattern.QWS may regulate the release of inflammatory factors through the tryptophan metabolism pathway.
基金This work was supported by the Scientific Research Project of Liaoning Province Education Department(2020LJC16).
文摘Background:Oral ulcer is the most common and easily recurrent disease in stomatology,which influence the patients’communication,normal dietary,and sleep.Evodia rutaecarpa(ER)is a traditional Chinese herbal medicine recorded in ancient Chinese medical books,which has a medicinal history of more than 2,000 years.Clinically,the application of ER at plantar Yongquan point(KI1)is effective in the treatment of oral ulcer.The purpose of this study was to combine the modern transdermal drug delivery system with traditional Chinese medicine to develop the transdermal absorption patch of ER and apply it to the treatment of oral ulcer at Yongquan point of plantar.Methods:Firstly,the medicinal materials of ER were extracted and the extracted materials were prepared into dispersed ER patch.The formulation and preparation process were screened by orthogonal design method and single factor investigation method.The adhesive and transdermal properties of the patch were used as the evaluation index of the preparation.Secondly,Wistar rats were used as experimental animals to establish a rat model of mouth ulcers.Wistar rats were randomly divided into normal group,model group(A),model group(B),low dose group,medium dose group and high dose group.the efficacy of ER on rat’s oral ulcer model was evaluated through three aspect such as apparent index,pathological index and biochemical index.Results:The patch had suitable adhesion and good skin penetration,which was an effective treatment for oral ulcer.In vivo pharmacodynamic studies,compared with the normal group,the body mass and food intake of rats in each group after modeling decreased,the amount of drinking water increased,the tissue structure of oral mucosa was damaged,and the levels of inflammatory factors(TNF-α,IL-6)and malondialdehyde increased,the levels of anti-inflammatory factors(IL-10),cell growth factor(epidermal growth factor,TGF-β_(1))and superoxide dismutase decreased.Compared with the model group,the body weight and food intake of each dosing group increased,water consumption decreased,the oral mucosal tissue structure was more complete,the levels of TNF-α,IL-6 and malondialdehyde decreased,the levels of IL-10,epidermal growth factor,TGF-β1 and superoxide dismutase increased,and the changes of various indexes were dose-related.Conclusion:ER patch can inhibit inflammatory reaction,enhance the antioxidant defense ability of the body,and promote the repair of damaged oral mucosa,so as to play an effective role in the treatment of oral ulcer.
文摘Oral ulcer is a kind of ulcerative injury that occurs in the oral mucosa and is very common in clinic.In severe case,it can affect the quality of life of the patients.Western medicine treatment of oral ulcer is often prone to relapse,while the effect of traditional Chinese medicine treatment is remarkable.
文摘Objective: to explore the clinical treatment effect of banxia xiexin decoction combined with Wucornus officinalis sticking Yongquan point in patients with recurrent oral ulcer. Methods: 104 patients with recurrent oral ulcer in outpatient department were selected to participate in the study, and divided into two groups by simple random method: control group, western medicine vitamin treatment, observation group, banxia xiexin decoction plus or minus combined with Wucornus sticking Yongquan point treatment. Each group had 52 cases. The control group was treated with Western medicine, the observation group was treated with traditional Chinese medicine, and the therapeutic effects of the two groups were compared. Results: the total effective rate of observation group was significantly higher than that of control group, data comparison between groups: P < 0.05. Conclusion: banxia xiexin decoction combined with Wucornus sticking Yongquan point can achieve ideal therapeutic effect in the treatment of recurrent oral ulcer.
文摘Objective: to investigate the correlation between psychological factors and the incidence of recurrent oral ulcer among college students in Mudanjiang area. Methods: 80 cases of recurrent oral ulcer were randomly selected from full-time college students in Mudanjiang area, the incidence of recurrent oral ulcer in college students was investigated by questionnaire, the psychological factors affecting the occurrence of the disease were evaluated, and the appropriate psychological intervention was carried out to compare the effects before and after the intervention. Results: 98.75% of the students had different stress events in the course of disease, among which learning pressure was the dominant one. After the intervention, the score of symptom scale was lower than that before the intervention, P < 0.05. Before and after the intervention, there was no difference in P psychosis and L dissimulation tendency, P > 0.05. After the intervention, N neuroticism was lower than before, and E inside and outside tendency was higher than before, P < 0.05. Conclusion: psychological factors are closely related to the occurrence of recurrent oral ulcer, and effective psychological intervention should be taken for college students in Mudanjiang area to reduce the incidence of recurrent oral ulcer.
基金supported by Infinitus(China)Company Ltd.(research grants No.HPG20220930698).
文摘Background:Pedunculoside(PE)is a pentacyclic triterpenoid saponin found in the dried barks of the Ilex rotunda Thunb.In traditional Chinese medicine,the juice extracted from various Ilex species is commonly used for treating inflammatory diseases.Objective:This study aims to investigate the potential of PE in promoting the healing of oral ulcers in mice and to explore its possible mechanism.Materials and Methods:A mouse model of oral ulcer was established to evaluate the healing promotion effects of PE,and an in-vitro inflammatory cell model was established by using primary fibroblasts isolated from mouse oral mucosal tissue.Gene transcription and protein expression related to cell proliferation,migration,and collagen synthesis were measured.Results:PE showed the highest cure rate of 85.7%for oral ulcers in mice within 7-days treatment.It significantly promoted cell proliferation and collagen secretion in fibroblast in-vitro model.PE also upregulated the gene transcription of Smad3,Col1a1 and Col3a1.Furthermore,PE antagonized the inhibitory effect of WP1066 on STAT3activation,but did not affect cell migration.Conclusion:This study demonstrates that PE has potential therapeutic effects in promoting oral ulcer healing in mice.The improvement was achieved by the increasing collagen synthesis through the upregulation of STAT3 and Smad3 in mucosa fibroblasts.These results provide a preliminary pharmacological work for developing PE as a potential treatment agent for oral ulcers.
文摘Objective: To analyze the clinical effect of kangfuxin liquid and iodine glycerin in the treatment of recurrent oral ulcer. Methods: A total of 120 patients with recurrent oral ulcer treated in our hospital from December 2019 to December 2020 were selected as the research objects. The patients were divided into control group and observation group according to random number grouping method, with 60 patients in each group. The control group was treated with iodine glycerin, and the observation group was treated with kangfuxin solution. The clinical therapeutic effects of the two groups were compared. Results: There was no significant difference in VAS score between the two groups before treatment (P>0.05), but 1 day, 1 week and 1 month after treatment, VAS score of the observation group was significantly better than that of the control group, and pain symptoms were better improved, the difference was statistically significant (P<0.05). The time of ulcer disappearance in the observation group was faster than that in the control group, and the total effective rate in the observation group was 96.67%, which was higher than that in the observation group (83.33%), the difference was statistically significant (P<0.05). Conclusion: The use of kangfuxin solution for the treatment of recurrent oral ulcer patients can obtain better therapeutic effect, effectively relieve the pain of patients with ulcer, in a shorter time to let the ulcer disappear, and has a higher therapeutic effectiveness, reduce the recurrence of the disease, should be popularized in clinical application.
文摘Objective: to discuss the curative effect of combined traditional Chinese and western medicine on recurrent oral ulcer. Methods: the data of 92 patients with recurrent oral ulcer were reviewed and randomly divided into two groups. Different treatment methods were used to compare the clinical effects. Results: the indexes of the study group were better than those of the control group (P < 0.05). Conclusion: combination of traditional Chinese and western medicine has significant effect on recurrent oral ulcer.
基金supported by the National Key R&D Program of China(Key Special Project for Marine Environmental Security and Sustainable Development of Coral Reefs 2022-3.5).Subject Name:DJZJGB Study on the Characterization and Prevention of Diseases in Oral Diseases and Related Disciplines.
文摘Objective This study aimed to examine the pharmacodynamic effects of Nanyang kiwifruit extract on rats with traumatic oral ulcers and to provide a theoretical basis for its potential clinical application in treating oral mucosal diseases.Methods Fifty-four male Sprague Dawley rats were acclimatized for 1 week before being subjected to chemical cauterization to induce oral ulcers.The rats were then divided into six groups:the control group,the model group,Nanyang kiwifruit extract/hydroxyapatite group,the hydroxyapatite group,the ordinary kiwifruit extract group,and Nanyang kiwifruit extract group.The evaluation indicators included the state of ulcer healing,the ulcer area,and the healing period.To assess the pathology of the wounds,three rats from each group were randomly selected on the third and fifth days of drug administration for hematoxylin and eosin(HE)staining.Results Compared with the other groups,Nanyang kiwifruit extract and Nanyang kiwifruit extract/hydroxyapatite group demonstrated a significant reduction in the healing time of oral ulcers,as evidenced by both observation and the HE staining results.The HE staining further revealed that the mucosal epithelium healed more rapidly and the edema recovered faster in the Nanyang kiwifruit extract group and Nanyang kiwifruit extract/hydroxyapatite group than in the other groups.These findings indicate that the Nanyang kiwifruit extract group and Nanyang kiwifruit extract/hydroxyapatite group had a pronounced effect on promoting ulcer healing.Conclusion Nanyang kiwifruit extract and the hydroxyapatite effectively promote ulcer healing and reduce the healing time of oral ulcer wounds.
