Dear Editor,Herpes zoster(HZ),which is characterized by a unilateral painful dermatomal rash,is caused by reactivation of the latent varicella-zoster virus(VZV)in the dorsal root ganglia following primary infection du...Dear Editor,Herpes zoster(HZ),which is characterized by a unilateral painful dermatomal rash,is caused by reactivation of the latent varicella-zoster virus(VZV)in the dorsal root ganglia following primary infection during childhood[1].HZ tends to occur more frequently in older adults,in whom cellmediated immunity often declines.The incidence of HZ among immunocompetent unvaccinated individuals aged>50y is 9.92/1000 person-years[2].HZ ophthalmicus(HZO)occurs when HZ involves the first division of the trigeminal nerve,i.e.,the ophthalmic nerve[3].展开更多
Quercetin is a natural compound with potent antiviral effects;however,its role in the treatment of herpes simplex keratitis(HSK)remains underexplored.Here,we investigated the antiviral effects of quercetin against her...Quercetin is a natural compound with potent antiviral effects;however,its role in the treatment of herpes simplex keratitis(HSK)remains underexplored.Here,we investigated the antiviral effects of quercetin against herpes simplex virus 1(HSV-1).By examining different phases of viral infection in human corneal epithelial cells(HCECs),we found that 30μmol/L quercetin inhibits HSV-1 replication primarily by disrupting viral attachment.RNA-sequencing and subsequent analyses revealed that the nuclear factor E2-related factor 2(Nrf2)was upregulated by quercetin in a dose-dependent manner.Knocking down Nrf2 partially compromised quercetin's antiviral effect.Importantly,topical application of 100μmol/L quercetin alleviated HSK severity in mice,reduced viral titers in tears,and inhibited VP16 expression in the cornea and trigeminal ganglia.These findings demonstrate the antiviral effect of quercetin against HSV-1 and provide a foundation for mechanistic studies to elucidate its therapeutic potential in HSK.展开更多
Several experimental evidence suggests a link between brain Herpes simplex virus type-1 infection and the occurrence of Alzheimer’s disease.However,the molecular mechanisms underlying this association are not complet...Several experimental evidence suggests a link between brain Herpes simplex virus type-1 infection and the occurrence of Alzheimer’s disease.However,the molecular mechanisms underlying this association are not completely understood.Among the molecular mediators of synaptic and cognitive dysfunction occurring after Herpes simplex virus type-1 infection and reactivation in the brain neuroinflammatory cytokines seem to occupy a central role.Here,we specifically reviewed literature reports dealing with the impact of neuroinflammation on synaptic dysfunction observed after recurrent Herpes simplex virus type-1 reactivation in the brain,highlighting the role of interleukins and,in particular,interleukin 1βas a possible target against Herpes simplex virus type-1-induced neuronal dysfunctions.展开更多
BACKGROUND Aseptic meningitis is defined as meningeal inflammation caused by various etio-logies with negative cerebrospinal fluid(CSF)bacterial culture.The most common etiologies are viruses[enteroviruses,arboviruses...BACKGROUND Aseptic meningitis is defined as meningeal inflammation caused by various etio-logies with negative cerebrospinal fluid(CSF)bacterial culture.The most common etiologies are viruses[enteroviruses,arboviruses,and herpes simplex virus type 2(HSV-2)].Aseptic meningitis can have various presentations,including sensori-neural deafness.While sensorineural deafness from mumps meningoencephalitis has been reported,cases of HSV-2-induced hearing loss are rare.Herein,we re-port a case of HSV-2-induced meningitis that presented with sudden deafness.CASE SUMMARY A 68-year-old man experienced a profound sudden onset of left-sided hearing loss for one day.Pure-tone audiograms demonstrated sudden left-sided sensorineural hearing loss(thresholds 80-90 dB).After treatment with high-dose steroids for 1 week,he experienced an acute consciousness change with left hemiparesis.The laboratory data showed no significant abnormalities.Brain computed tomography without contrast and magnetic resonance imaging revealed no intracranial hemo-rrhage or obvious brain lesion.The CSF analysis and the Multiplex PCR panels showed HSV-2 positivity.Hence,under the diagnosis of herpes meningoenceph-alitis,acyclovir was prescribed and his symptoms gradually resolved.CONCLUSION This case report further demonstrates that a viral infection could be a cause of sudden sensorineural hearing loss.展开更多
BACKGROUND Facial herpes is a common form of the herpes simplex virus-1 infection and usually presents as vesicles near the mouth,nose,and periocular sites.In contrast,we observed a new facial symptom of herpes on the...BACKGROUND Facial herpes is a common form of the herpes simplex virus-1 infection and usually presents as vesicles near the mouth,nose,and periocular sites.In contrast,we observed a new facial symptom of herpes on the entire face without vesicles.CASE SUMMARY A 33-year-old woman with a history of varicella infection and shingles since an early age presented with sarcoidosis of the entire face and neuralgia without oral lesions.The patient was prescribed antiviral treatment with valacyclovir and acyclovir cream.One day after drug administration,facial skin lesions and neurological pain improved.Herpes simplex without oral blisters can easily be misdiagnosed as pimples upon visual examination in an outpatient clinic.CONCLUSION As acute herpes simplex is accompanied by neuralgia,prompt diagnosis and prescription are necessary,considering the pathological history and health conditions.展开更多
[Objectives]To observe the clinical efficacy of external application of Scorzonera Herpes Ointment combined with Methylprednisolone Sodium Succinate for Injection in the treatment of herpes zoster oticus(HZO).[Methods...[Objectives]To observe the clinical efficacy of external application of Scorzonera Herpes Ointment combined with Methylprednisolone Sodium Succinate for Injection in the treatment of herpes zoster oticus(HZO).[Methods]A total of 100 HZO patients admitted to the 988 th Hospital of the Joint Logistics Support Force and Henan Provincial People's Hospital from June 2021 to June 2023 were selected.They were divided into a treatment group and a control group using a random number table method,with 50 cases in each group.Both groups received Methylprednisolone Sodium Succinate for Injection.Additionally,the treatment group was treated with external application of Scorzonera Herpes Ointment,while the control group received acyclovir ointment.Both groups were treated for 10 d.The comparisons included clinical efficacy,total symptom and sign scores,pain level[Visual Analogue Scale(VAS)],time for erythema reduction,cessation of blister formation,scab formation,and scab shedding,incidence of post-herpetic neuralgia(PHN),air conduction hearing threshold,and air-bone gap.[Results]After 10 d of treatment,the total effective rate was 98.00%(49/50)in the treatment group and 84.00%(42/50)in the control group,with a statistically significant difference between the two groups(P<0.05).After 10 d of treatment,the total symptom and sign scores and VAS scores of both groups decreased compared to those before treatment.The treatment group had significantly lower scores than the control group(P<0.05).The treatment group showed significantly shorter time for erythema reduction,cessation of blister formation,scab formation,and scab shedding compared to the control group(P<0.05).During the 1-month follow-up after treatment,no PHN cases occurred in the treatment group,while the incidence of PHN in the control group was 24.00%(12/50),showing a statistically significant difference(P<0.05).After 10 d of treatment,both groups showed reduced air conduction hearing thresholds,and the treatment group exhibited significantly lower air conduction thresholds and air-bone gaps compared to the control group(P<0.05).No statistically significant difference was observed in the air-bone gap before and after treatment in the control group(P>0.05).[Conclusions]The combination of external application of Scorzonera Herpes Ointment and Methylprednisolone Sodium Succinate for Injection can alleviate pain and other discomforts,reduce PHN incidence,shorten disease duration,and improve hearing in HZO patients.展开更多
BACKGROUND Acyclovir(ACV)-resistant herpes simplex virus(HSV)strains have emerged and gradually increased in number.Prolonged treatment,such as for immunocompromised patients,has been observed on many occasions to lea...BACKGROUND Acyclovir(ACV)-resistant herpes simplex virus(HSV)strains have emerged and gradually increased in number.Prolonged treatment,such as for immunocompromised patients,has been observed on many occasions to lead to the development of resistance.Additionally,some strains of HSV exist that are ACV resistant,and they can cause severe complications that may be impossible to treat with current therapies.We report the first case of ACV-resistant herpes encephalitis(ARHE)recurring in an immunocompromised adult patient without neurosurgical intervention.CASE SUMMARY A 58-year-old man with a fever of 38°C had tremors.Evaluation revealed 14 points on the Glasgow Coma Scale with 39°C fever but unremarkable physical examination.Diagnosis was infection of unknown origin;fever continued,and the Glasgow Coma Scale worsened to 8.Imaging showing a high-intensity area between the left temporal lobe and insular cortex suggested herpes encephalitis.ACV was started.Cerebrospinal fluid(CSF)was positive for HSV DNA,confirming the diagnosis.However,unresolved symptoms suggested ARHE;therefore,we initiated vidarabine treatment.Later testing confirmed ARHE.Foscarnet was started based on a hospital day 25 blood test revealing pancytopenia,possibly from vidarabine.Consciousness improved,and the patient moved to rehabilitation.However,symptoms worsened,suggesting recurrence.Diffusion-weighted magnetic resonance imaging revealed a high high-intensity area around the right temporal lobe;CSF was positive for HSV DNA,confirming recurrent herpes encephalitis.ACV and foscarnet were initiated.Fever decreased,consciousness improved,and HSV DNA on hospital days 78 and 93 was CSF negative.Treatment was terminated on hospital day 86.CONCLUSION ARHE recurred in the patient following remission;therefore,it is necessary to discuss the length of the treatment period.展开更多
BACKGROUND Erythrodermic psoriasis(EP)is a rare and life-threatening form of psoriasis associated with significant morbidity and mortality.Systemic immunosuppre-ssive therapies are often required but may predispose to...BACKGROUND Erythrodermic psoriasis(EP)is a rare and life-threatening form of psoriasis associated with significant morbidity and mortality.Systemic immunosuppre-ssive therapies are often required but may predispose to opportunistic infections.Disseminated herpes simplex virus type-1(HSV-1)is an unusual complication in otherwise immunocompetent patients and has not been reported in association with ixekizumab therapy for EP.CASE SUMMARY We describe a 49-year-old man with longstanding severe plaque psoriasis,liver cirrhosis,and bipolar disorder who developed EP involving>90%of body surface area[Psoriasis Area and Severity Index(PASI)45].Following initial stabil-ization,he was admitted to the intensive care unit(ICU)with hemodynamic instability,leukocytosis with eosinophilia,and diffuse desquamation.Ixekizumab was initiated with high-dose topical clobetasol.During his ICU stay,he developed recurrent bacteremias and neurologic decline(Glasgow Coma Scale 7/15),fo-llowed by the appearance of widespread vesicles and hemorrhagic crusts.HSV-1 infection was confirmed by polymerase chain reaction(PCR).Immunosuppressive therapy was withheld,and intravenous acyclovir was started,leading to progre-ssive improvement.After ten days,ixekizumab was reintroduced with careful monitoring,resulting in marked clinical improvement(PASI 9.7 at six weeks).The patient remained stable on long-term follow-up with oral acyclovir prophylaxis.CONCLUSION This case highlights the diagnostic and therapeutic challenges of managing EP in the setting of biologic therapy.Disseminated cutaneous HSV-1 should be considered in immunosuppressed patients presenting with new vesicular eruptions,and prompt PCR testing with early antiviral therapy is essential.A multidisciplinary approach is critical to balance immunosuppression for disease control with infection risk.展开更多
Dear Editor,I am Dr.Asako Kodama,affiliated with the Department of Ophthalmology at Eiju General Hospital in Tokyo,Japan.Varicella-zoster virus(VZV)induces two distinct states:the primary infection(varicella)and secon...Dear Editor,I am Dr.Asako Kodama,affiliated with the Department of Ophthalmology at Eiju General Hospital in Tokyo,Japan.Varicella-zoster virus(VZV)induces two distinct states:the primary infection(varicella)and secondary endogenous reactivation of latent VZV in herpes zoster form.While herpes zoster lesions typically manifest on the trunk and abdomen,the most frequently involved cranial nerve is the trigeminal nerve.展开更多
Objective To observe the analgesic effect on herpes zoster treated by the comprehensive therapy of blocking, surrounding needling, pricking and cupping combined with bloodletting at Longyan （龙眼, Extra） acupoint. M...Objective To observe the analgesic effect on herpes zoster treated by the comprehensive therapy of blocking, surrounding needling, pricking and cupping combined with bloodletting at Longyan （龙眼, Extra） acupoint. Methods According to the random mumber table, 104 cases of herpes zoster were randomized into an observation group and a control group, 52 cases in each one. In the observation group, the blocking method was used at the starting site and the ending site of herpetic zone, the surrounding needling method was applied toward the center of the painful zone, with horizontal needling technique; and the local pricking and cupping methods as well as the bloodletting at Longyan （Extra） acupoint were adopted. In the control group, Jiáj （夹脊 EX-B 2） at the corresponding affected nerve segments and the local Ashi points were selected and stimulated with electroacupuncture. The visual analogue scale （VAS） was adopted to determine the analgesic effect 20 min, 1, 6, 12, 24 and 48 h after treatment separately in each group. Results The onset time of analgesic effect in the observation group was shorter than that in the control group and the efficacy time of duration was longer than that in the control group （all P0.05）. The analgesic effect and the result of comprehensive efficacy assessment were superior to those of the control group （both P0.05）. Conclusion The comprehensive therapy of blocking, surrounding needling, pricking and cupping method combined with bloodletting at Longyan （Extra） achieves the significant analgesic effect on herpes zoster.展开更多
Objective To evaluate the clinical effect of acupuncture combined with direct moxibustion with fine-strip moxa for herpes zoster. Methods Sixty-two patients with herpes zoster were randomly divided into two groups acc...Objective To evaluate the clinical effect of acupuncture combined with direct moxibustion with fine-strip moxa for herpes zoster. Methods Sixty-two patients with herpes zoster were randomly divided into two groups according to attendance number, 32 in acupuncture group and 30 in western medicine group. The patients in the acupuncture group were treated by acupuncture at the nidus-related nerve segments Jiaji （夹脊 EX-B2） in combination with direct moxibustion with fine-strip moxa, while the patients in the western medicine group were treated by oral valaciclovir hydrochloride, vitamin B1, vitamin B12. The times of response, incrustation and decrustation were observed respectively, and pain relief degree of the two groups were compared. Results The response time, incrustation time and decrustation time of the acupuncture group were all less than those of the western medicine group [（1.74±0.43） days vs （3.86±0.58） days, （2.03±0.52） days vs （5.46±0.65） days, （5.14±0.33） days vs （8.34±0.59） days, all P〈O.05]. The pain relief degree （VAS score）, and pain duration in the acupuncture group were all higher obviously than those of the western medicine group [（10.41±12.1） vs （15.63±11.39）, （4.78±0.45） days vs （8.12±0.63） days, all P〈O.05]. The total effective rate of the acupuncture group was 96.9% （31/32）and that of the western medicine group was 90% （27/30）, thus the therapeutic effect of acupuncture group was better than that of western medicine group （P〈0.05）. Conclusion The therapeutic effect of acupuncture combined with direct moxibustion with fine-strip moxa is remarkable. It can effectively control the development of herpes zoster, alleviate pain and shorten therapy periods. It is worthy to be promoted and applied.展开更多
Objective To compare the difference of clinical efficacy of thin cotton moxibustion combined with plum-blossom needle and western medication in treatment of herpes zoster.Method Eighty patients with herpes zoster were...Objective To compare the difference of clinical efficacy of thin cotton moxibustion combined with plum-blossom needle and western medication in treatment of herpes zoster.Method Eighty patients with herpes zoster were divided into thin cotton moxibustion group（group A,n=40） and western medication group（group B,n=40） according to the sequence of admission.Patients in group A received thin cotton moxibustion that the colton was used as thin as a cicada＇s wings,combined with plum-blossom needle,and patients in group B received intravenous infusion with 0.25 g of acyclovir once a day,and acyclovir ointment application on affected part for 3-5 times per day.Five days were considered as a course of treatment.Analgesic effect and the incidence of postherpetic neuralgia were observed after two consecutive courses.Result The total effective rate was 97.5%（39/40） in group A,and80.0%（32/40） in group B（P〈0.05）;it was shown from the comparison of course between two groups that the cure rate after one in group A was markedly higher than that in group B（P〈0.01,P〈0.05）;the differences in effectual time and analgesic time between group A and group B were statistically significant（P〈0.05）;after treatment,the incidence of postherpetic neuralgia in group A was markedly lower than that in group B（P〈0.05）.Conclusion Thin cotton moxibustion combined with plum-blossom needle in treatment of herpes zoster can obviously shorten the time of therapy,effectively control pain,and reduce the incidence of postherpetic neuralgia.展开更多
Herpes simplex virus type-1 (HSV-1) is one of many pathogens that use the cell surface glycosaminoglycan heparan sulfate as a receptor. Heparan sulfate is highly expressed on the surface and extracellular matrix of vi...Herpes simplex virus type-1 (HSV-1) is one of many pathogens that use the cell surface glycosaminoglycan heparan sulfate as a receptor. Heparan sulfate is highly expressed on the surface and extracellular matrix of virtually all cell types making it an ideal receptor. Heparan sulfate interacts with HSV-1 envelope glycoproteins gB and gC during the initial attachment step during HSV-1 entry. In addition,a modified form of heparan sulfate,known as 3-O-sulfated heparan sulfate,interacts with HSV-1 gD to induce fusion between the viral envelope and host cell membrane. The 3-O-sulfation of heparan sulfate is a rare modification which occurs during the biosynthesis of heparan sulfate that is carried out by a family of enzymes known as 3-O-sulfotransferases. Due to its involvement in multiple steps of the infection process,heparan sulfate has been a prime target for the development of agents to inhibit HSV entry. Understanding how heparan sulfate functions during HSV-1 infection may not only be critical for inhibiting infection by this virus,but it may also be crucial in the fight against many other pathogens as well.展开更多
Human herpesviruses （HVs） have developed ingenious mechanisms that enable them to traverse the defenses of the central nervous system （CNS）. The ability of HVs to enter a state of latency, a defining char- acteris...Human herpesviruses （HVs） have developed ingenious mechanisms that enable them to traverse the defenses of the central nervous system （CNS）. The ability of HVs to enter a state of latency, a defining char- acteristic of this viral family, allows them to persist in the human host indefinitely. As such, HVs represent the most frequently detected pathogens in the brain. Under constant immune pressure, these infections are largely asymptomatic in healthy hosts. However, many neurotropic HVs have been directly connected with CNS pathology in the context of other stressors and genetic risk factors. In this review, we discuss the potential mechanisms by which neurotropic HVs contribute to neurodegenerative disease （NDD） patholo- gy by highlighting two prominent members of the HV family, herpes simplex virus 1 （HSV-1） and human herpesvirus 6 （HHV-6）. We （i） introduce the infectious pathways and replicative cycles of HSV-1 and HHV-6 and then （ii） review the clinical evidence supporting associations between these viruses and the NDDs Alzheimer＇s disease （AD） and multiple sclerosis （MS）, respectively. We then （iii） highlight and dis- cuss potential mechanisms by which these viruses exert negative effects on neurons and glia. Finally, we （iv） discuss how these viruses could interact with other disease-modifying factors to contribute to the initiation and/or progression of NDDs.展开更多
TypeⅢinterferons(IFNs)represent the most recently discovered group of IFNs.Together with typeⅠIFNs(e.g.IFN-α/β),typeⅢIFNs(IFN-λ)are produced as part of the innate immune response to virus infection,and elicit an...TypeⅢinterferons(IFNs)represent the most recently discovered group of IFNs.Together with typeⅠIFNs(e.g.IFN-α/β),typeⅢIFNs(IFN-λ)are produced as part of the innate immune response to virus infection,and elicit an anti-viral state by inducing expression of interferon stimulated genes(ISGs).It was initially thought that typeⅠIFNs and typeⅢIFNs perform largely redundant functions.However,it has become evident that typeⅢIFNs particularly play a major role in antiviral protection of mucosal epithelial barriers,thereby serving an important role in the first-line defense against virus infection and invasion at contact areas with the outside world,versus the generally more broad,potent and systemic antiviral effects of typeⅠIFNs.Herpesviruseses are large DNA viruses,which enter their host via mucosal surfaces and establish lifelong,latent infections.Despite the importance of mucosal epithelial cells in the pathogenesis of herpesviruses,our current knowledge on the interaction of herpesviruses with typeⅢIFN is limited and largely restricted to studies on the alphaherpesvirus herpes simplex virus(HSV).This review summarizes the current understanding about the role of IFN-λin the immune response against herpesvirus infections.展开更多
Herpes simplex virus-1(HSV-1)is a widespread neurotropic virus that can reach the brain and cause a rare but acute herpes simplex encephalitis(HSE)with a high mortality rate.Most patients present with changes in neuro...Herpes simplex virus-1(HSV-1)is a widespread neurotropic virus that can reach the brain and cause a rare but acute herpes simplex encephalitis(HSE)with a high mortality rate.Most patients present with changes in neurological and behavioral status,and survivors suffer long-term neurological sequelae.To date,the pathogenesis leading to brain damage is still not well understood.HSV-1 induced encephalitis in the central nervous system(CNS)in animals are usually very diffuse and progressing rapidly,and mostly fatal,making the analysis difficult.Here,we established a mouse model of HSE via intracerebral inoculation of modified version of neuralattenuated strains of HSV-1(deletion of ICP34.5 and inserting a strong promoter into the latency-associated transcript region),in which the LMR-αΔpA strain initiated moderate productive infection,leading to strong host immune and inflammatory response characterized by persistent microglia activation.This viral replication activity and prolonged inflammatory response activated signaling pathways in neuronal damage,amyloidosis,Alzheimer's disease,and neurodegeneration,eventually leading to neuronal loss and behavioral changes characterized by hypokinesia.Our study reveals detailed pathogenic processes and persistent inflammatory responses in the CNS and provides a controlled,mild and non-lethal HSE model for studying long-term neuronal injury and increased risk of neurodegenerative diseases due to HSV-1 infection.展开更多
The Wnt/β-catenin signaling pathway is instrumental in successful differentiation and proliferation of mammalian cells. It is therefore not surprising that the herpesvirus family has developed mechanisms to interact ...The Wnt/β-catenin signaling pathway is instrumental in successful differentiation and proliferation of mammalian cells. It is therefore not surprising that the herpesvirus family has developed mechanisms to interact with and manipulate this pathway. Successful coexistence with the host requires that herpesviruses establish a lifelong infection that includes periods of latency and reactivation or persistence. Many herpesviruses establish latency in progenitor cells and viral reactivation is linked to host-cell proliferation and differentiation status. Importantly, Wnt/β-catenin is tightly connected to stem/progenitor cell maintenance and differentiation. Numerous studies have linked Wnt/β-catenin signaling to a variety of cancers, emphasizing the importance of Wnt/β-catenin pathways in development, tissue homeostasis and disease. This review details how the alpha-, beta-, and gammaherpesviruses interact and manipulate the Wnt/β-catenin pathway to promote a virus-centric agenda.展开更多
The aim of our minireview is to provide a brief overview of the diagnosis,clinical aspects,treatment options,management,and current literature available regarding herpes simplex keratitis(HSK).This type of corneal vir...The aim of our minireview is to provide a brief overview of the diagnosis,clinical aspects,treatment options,management,and current literature available regarding herpes simplex keratitis(HSK).This type of corneal viral infection is caused by the herpes simplex virus(HSV),which can affect several tissues,including the cornea.One significant aspect of HSK is its potential to cause recurrent episodes of inflammation and damage to the cornea.After the initial infection,the HSV can establish a latent infection in the trigeminal ganglion,a nerve cluster near the eye.The virus may remain dormant for extended periods.Periodic reactivation of the virus can occur,leading to recurrent episodes of HSK.Factors triggering reactivation include stress,illness,immunosuppression,or trauma.Recurrent episodes can manifest in different clinical patterns,ranging from mild epithelial involvement to more severe stromal or endothelial disease.The severity and frequency of recurrences vary among individuals.Severe cases of HSK,especially those involving the stroma and leading to scarring,can result in vision impairment or even blindness in extreme cases.The cornea's clarity is crucial for good vision,and scarring can compromise this,potentially leading to visual impairment.The management of HSK involves not only treating acute episodes but also implementing long-term strategies to prevent recurrences and attempt repairs of corneal nerve endings via neurotization.Antiviral medications,such as oral Acyclovir or topical Ganciclovir,may be prescribed for prophylaxis.The immune response to the virus can contribute to corneal damage.Inflammation,caused by the body's attempt to control the infection,may inadvertently harm the corneal tissues.Clinicians should be informed about triggers and advised on measures to minimize the risk of reactivation.In summary,the recurrent nature of HSK underscores the importance of both acute and long-term management strategies to preserve corneal health and maintain optimal visual function.展开更多
Objective: To study the role of monocytes in the pathogenesis of genital herpes. Methods: TNF- α and IL-6 levels in 27 cases of genital herpes were detected by enzyme linked immunosorbant assay (ELISA). HLA class Ⅱ ...Objective: To study the role of monocytes in the pathogenesis of genital herpes. Methods: TNF- α and IL-6 levels in 27 cases of genital herpes were detected by enzyme linked immunosorbant assay (ELISA). HLA class Ⅱ antigen expression on monocytes were detected by an alkaline phosphatase anti-alkaline phosphatase method. Results: Compared with normal controls, levels of TNF- a and IL - 6 secreted by monocytes responding to LPS mitogen in vitro were significantly decreased [(3.13 ± 0.44ng/ml) vs (4.68 ± 0.54ng/ml), P<0.05 and (3.32 ± 1.06ng/ml) vs (6.46 ± 1.94ng/ ml), P<0.05, respectively]. HLA class Ⅱ antigen expression on monocytes in the genital herpes group was also significantly decreased [HLA-DR (67.48% ± 1.51%) vs (81.03% ± 1.32%), P<0.01 and HLA-DQ (29.54% ± 1.15%) vs (37.63% ± 1.79%), P <0.01 respectively]. Conclusion: These findings suggest that the decreased monocyte function may contribute to the pathogenesis of genital herpes. Augmenting or inducing monocyte function may be important in the prevention, treatment, and reduction of genital herpes cases.展开更多
Periodontitis is the inflammation of the supporting structures around the dentition.Several microbial agents,mostly bacteria,have been identified as causative factors for periodontal disease.On the other hand,oral cav...Periodontitis is the inflammation of the supporting structures around the dentition.Several microbial agents,mostly bacteria,have been identified as causative factors for periodontal disease.On the other hand,oral cavity is a rich reservoir for viruses since it contains a wide variety of cell types that can be targeted by viruses.Traditionally,the focus of research about the oral flora has been on bacteria because the most widespread oral diseases,like periodontitis and dental caries,are outcomes of bacterial infection.However,recently and especially after the emergence of coronavirus disease 2019,there is a growing tendency toward including viruses also into the scope of oral microbiome investigations.The global high prevalence of periodontitis and viral infections may point out to a concomitant or synergistic effect between the two.Although the exact nature of the mechanism still is not clearly understood,this could be speculated through the manipulation of the immune system by viruses;hence facilitating the furthermore colonization of the oral tissues by bacteria.This review provides an extensive and detailed update on the role of the most common viruses including herpes family(herpes simplex,varicella-zoster,Epstein-Barr,cytomegalovirus),Human papillomaviruses,Human immunodeficiency virus and severe acute respiratory syndrome coronavirus 2 in the initiation,progression and prognosis of periodontitis.展开更多
文摘Dear Editor,Herpes zoster(HZ),which is characterized by a unilateral painful dermatomal rash,is caused by reactivation of the latent varicella-zoster virus(VZV)in the dorsal root ganglia following primary infection during childhood[1].HZ tends to occur more frequently in older adults,in whom cellmediated immunity often declines.The incidence of HZ among immunocompetent unvaccinated individuals aged>50y is 9.92/1000 person-years[2].HZ ophthalmicus(HZO)occurs when HZ involves the first division of the trigeminal nerve,i.e.,the ophthalmic nerve[3].
基金supported by the National Natural Science Foundation of China(No.81970848).
文摘Quercetin is a natural compound with potent antiviral effects;however,its role in the treatment of herpes simplex keratitis(HSK)remains underexplored.Here,we investigated the antiviral effects of quercetin against herpes simplex virus 1(HSV-1).By examining different phases of viral infection in human corneal epithelial cells(HCECs),we found that 30μmol/L quercetin inhibits HSV-1 replication primarily by disrupting viral attachment.RNA-sequencing and subsequent analyses revealed that the nuclear factor E2-related factor 2(Nrf2)was upregulated by quercetin in a dose-dependent manner.Knocking down Nrf2 partially compromised quercetin's antiviral effect.Importantly,topical application of 100μmol/L quercetin alleviated HSK severity in mice,reduced viral titers in tears,and inhibited VP16 expression in the cornea and trigeminal ganglia.These findings demonstrate the antiviral effect of quercetin against HSV-1 and provide a foundation for mechanistic studies to elucidate its therapeutic potential in HSK.
基金supported by UniversitàCattolica(D1 intramural funds to RP)Italian Ministry of University and Research(PRIN 2022ZYLB7B,P2022YW7BP funds to CG).
文摘Several experimental evidence suggests a link between brain Herpes simplex virus type-1 infection and the occurrence of Alzheimer’s disease.However,the molecular mechanisms underlying this association are not completely understood.Among the molecular mediators of synaptic and cognitive dysfunction occurring after Herpes simplex virus type-1 infection and reactivation in the brain neuroinflammatory cytokines seem to occupy a central role.Here,we specifically reviewed literature reports dealing with the impact of neuroinflammation on synaptic dysfunction observed after recurrent Herpes simplex virus type-1 reactivation in the brain,highlighting the role of interleukins and,in particular,interleukin 1βas a possible target against Herpes simplex virus type-1-induced neuronal dysfunctions.
文摘BACKGROUND Aseptic meningitis is defined as meningeal inflammation caused by various etio-logies with negative cerebrospinal fluid(CSF)bacterial culture.The most common etiologies are viruses[enteroviruses,arboviruses,and herpes simplex virus type 2(HSV-2)].Aseptic meningitis can have various presentations,including sensori-neural deafness.While sensorineural deafness from mumps meningoencephalitis has been reported,cases of HSV-2-induced hearing loss are rare.Herein,we re-port a case of HSV-2-induced meningitis that presented with sudden deafness.CASE SUMMARY A 68-year-old man experienced a profound sudden onset of left-sided hearing loss for one day.Pure-tone audiograms demonstrated sudden left-sided sensorineural hearing loss(thresholds 80-90 dB).After treatment with high-dose steroids for 1 week,he experienced an acute consciousness change with left hemiparesis.The laboratory data showed no significant abnormalities.Brain computed tomography without contrast and magnetic resonance imaging revealed no intracranial hemo-rrhage or obvious brain lesion.The CSF analysis and the Multiplex PCR panels showed HSV-2 positivity.Hence,under the diagnosis of herpes meningoenceph-alitis,acyclovir was prescribed and his symptoms gradually resolved.CONCLUSION This case report further demonstrates that a viral infection could be a cause of sudden sensorineural hearing loss.
文摘BACKGROUND Facial herpes is a common form of the herpes simplex virus-1 infection and usually presents as vesicles near the mouth,nose,and periocular sites.In contrast,we observed a new facial symptom of herpes on the entire face without vesicles.CASE SUMMARY A 33-year-old woman with a history of varicella infection and shingles since an early age presented with sarcoidosis of the entire face and neuralgia without oral lesions.The patient was prescribed antiviral treatment with valacyclovir and acyclovir cream.One day after drug administration,facial skin lesions and neurological pain improved.Herpes simplex without oral blisters can easily be misdiagnosed as pimples upon visual examination in an outpatient clinic.CONCLUSION As acute herpes simplex is accompanied by neuralgia,prompt diagnosis and prescription are necessary,considering the pathological history and health conditions.
基金Supported by the Joint Construction Project of Medical Science and Technology Research Plan in Henan Province(LHGJ20190879).
文摘[Objectives]To observe the clinical efficacy of external application of Scorzonera Herpes Ointment combined with Methylprednisolone Sodium Succinate for Injection in the treatment of herpes zoster oticus(HZO).[Methods]A total of 100 HZO patients admitted to the 988 th Hospital of the Joint Logistics Support Force and Henan Provincial People's Hospital from June 2021 to June 2023 were selected.They were divided into a treatment group and a control group using a random number table method,with 50 cases in each group.Both groups received Methylprednisolone Sodium Succinate for Injection.Additionally,the treatment group was treated with external application of Scorzonera Herpes Ointment,while the control group received acyclovir ointment.Both groups were treated for 10 d.The comparisons included clinical efficacy,total symptom and sign scores,pain level[Visual Analogue Scale(VAS)],time for erythema reduction,cessation of blister formation,scab formation,and scab shedding,incidence of post-herpetic neuralgia(PHN),air conduction hearing threshold,and air-bone gap.[Results]After 10 d of treatment,the total effective rate was 98.00%(49/50)in the treatment group and 84.00%(42/50)in the control group,with a statistically significant difference between the two groups(P<0.05).After 10 d of treatment,the total symptom and sign scores and VAS scores of both groups decreased compared to those before treatment.The treatment group had significantly lower scores than the control group(P<0.05).The treatment group showed significantly shorter time for erythema reduction,cessation of blister formation,scab formation,and scab shedding compared to the control group(P<0.05).During the 1-month follow-up after treatment,no PHN cases occurred in the treatment group,while the incidence of PHN in the control group was 24.00%(12/50),showing a statistically significant difference(P<0.05).After 10 d of treatment,both groups showed reduced air conduction hearing thresholds,and the treatment group exhibited significantly lower air conduction thresholds and air-bone gaps compared to the control group(P<0.05).No statistically significant difference was observed in the air-bone gap before and after treatment in the control group(P>0.05).[Conclusions]The combination of external application of Scorzonera Herpes Ointment and Methylprednisolone Sodium Succinate for Injection can alleviate pain and other discomforts,reduce PHN incidence,shorten disease duration,and improve hearing in HZO patients.
基金Supported by the Japan Society for the Promotion of Science KAKENHI Grant,No.JP24K15491.
文摘BACKGROUND Acyclovir(ACV)-resistant herpes simplex virus(HSV)strains have emerged and gradually increased in number.Prolonged treatment,such as for immunocompromised patients,has been observed on many occasions to lead to the development of resistance.Additionally,some strains of HSV exist that are ACV resistant,and they can cause severe complications that may be impossible to treat with current therapies.We report the first case of ACV-resistant herpes encephalitis(ARHE)recurring in an immunocompromised adult patient without neurosurgical intervention.CASE SUMMARY A 58-year-old man with a fever of 38°C had tremors.Evaluation revealed 14 points on the Glasgow Coma Scale with 39°C fever but unremarkable physical examination.Diagnosis was infection of unknown origin;fever continued,and the Glasgow Coma Scale worsened to 8.Imaging showing a high-intensity area between the left temporal lobe and insular cortex suggested herpes encephalitis.ACV was started.Cerebrospinal fluid(CSF)was positive for HSV DNA,confirming the diagnosis.However,unresolved symptoms suggested ARHE;therefore,we initiated vidarabine treatment.Later testing confirmed ARHE.Foscarnet was started based on a hospital day 25 blood test revealing pancytopenia,possibly from vidarabine.Consciousness improved,and the patient moved to rehabilitation.However,symptoms worsened,suggesting recurrence.Diffusion-weighted magnetic resonance imaging revealed a high high-intensity area around the right temporal lobe;CSF was positive for HSV DNA,confirming recurrent herpes encephalitis.ACV and foscarnet were initiated.Fever decreased,consciousness improved,and HSV DNA on hospital days 78 and 93 was CSF negative.Treatment was terminated on hospital day 86.CONCLUSION ARHE recurred in the patient following remission;therefore,it is necessary to discuss the length of the treatment period.
文摘BACKGROUND Erythrodermic psoriasis(EP)is a rare and life-threatening form of psoriasis associated with significant morbidity and mortality.Systemic immunosuppre-ssive therapies are often required but may predispose to opportunistic infections.Disseminated herpes simplex virus type-1(HSV-1)is an unusual complication in otherwise immunocompetent patients and has not been reported in association with ixekizumab therapy for EP.CASE SUMMARY We describe a 49-year-old man with longstanding severe plaque psoriasis,liver cirrhosis,and bipolar disorder who developed EP involving>90%of body surface area[Psoriasis Area and Severity Index(PASI)45].Following initial stabil-ization,he was admitted to the intensive care unit(ICU)with hemodynamic instability,leukocytosis with eosinophilia,and diffuse desquamation.Ixekizumab was initiated with high-dose topical clobetasol.During his ICU stay,he developed recurrent bacteremias and neurologic decline(Glasgow Coma Scale 7/15),fo-llowed by the appearance of widespread vesicles and hemorrhagic crusts.HSV-1 infection was confirmed by polymerase chain reaction(PCR).Immunosuppressive therapy was withheld,and intravenous acyclovir was started,leading to progre-ssive improvement.After ten days,ixekizumab was reintroduced with careful monitoring,resulting in marked clinical improvement(PASI 9.7 at six weeks).The patient remained stable on long-term follow-up with oral acyclovir prophylaxis.CONCLUSION This case highlights the diagnostic and therapeutic challenges of managing EP in the setting of biologic therapy.Disseminated cutaneous HSV-1 should be considered in immunosuppressed patients presenting with new vesicular eruptions,and prompt PCR testing with early antiviral therapy is essential.A multidisciplinary approach is critical to balance immunosuppression for disease control with infection risk.
文摘Dear Editor,I am Dr.Asako Kodama,affiliated with the Department of Ophthalmology at Eiju General Hospital in Tokyo,Japan.Varicella-zoster virus(VZV)induces two distinct states:the primary infection(varicella)and secondary endogenous reactivation of latent VZV in herpes zoster form.While herpes zoster lesions typically manifest on the trunk and abdomen,the most frequently involved cranial nerve is the trigeminal nerve.
文摘Objective To observe the analgesic effect on herpes zoster treated by the comprehensive therapy of blocking, surrounding needling, pricking and cupping combined with bloodletting at Longyan （龙眼, Extra） acupoint. Methods According to the random mumber table, 104 cases of herpes zoster were randomized into an observation group and a control group, 52 cases in each one. In the observation group, the blocking method was used at the starting site and the ending site of herpetic zone, the surrounding needling method was applied toward the center of the painful zone, with horizontal needling technique; and the local pricking and cupping methods as well as the bloodletting at Longyan （Extra） acupoint were adopted. In the control group, Jiáj （夹脊 EX-B 2） at the corresponding affected nerve segments and the local Ashi points were selected and stimulated with electroacupuncture. The visual analogue scale （VAS） was adopted to determine the analgesic effect 20 min, 1, 6, 12, 24 and 48 h after treatment separately in each group. Results The onset time of analgesic effect in the observation group was shorter than that in the control group and the efficacy time of duration was longer than that in the control group （all P0.05）. The analgesic effect and the result of comprehensive efficacy assessment were superior to those of the control group （both P0.05）. Conclusion The comprehensive therapy of blocking, surrounding needling, pricking and cupping method combined with bloodletting at Longyan （Extra） achieves the significant analgesic effect on herpes zoster.
文摘Objective To evaluate the clinical effect of acupuncture combined with direct moxibustion with fine-strip moxa for herpes zoster. Methods Sixty-two patients with herpes zoster were randomly divided into two groups according to attendance number, 32 in acupuncture group and 30 in western medicine group. The patients in the acupuncture group were treated by acupuncture at the nidus-related nerve segments Jiaji （夹脊 EX-B2） in combination with direct moxibustion with fine-strip moxa, while the patients in the western medicine group were treated by oral valaciclovir hydrochloride, vitamin B1, vitamin B12. The times of response, incrustation and decrustation were observed respectively, and pain relief degree of the two groups were compared. Results The response time, incrustation time and decrustation time of the acupuncture group were all less than those of the western medicine group [（1.74±0.43） days vs （3.86±0.58） days, （2.03±0.52） days vs （5.46±0.65） days, （5.14±0.33） days vs （8.34±0.59） days, all P〈O.05]. The pain relief degree （VAS score）, and pain duration in the acupuncture group were all higher obviously than those of the western medicine group [（10.41±12.1） vs （15.63±11.39）, （4.78±0.45） days vs （8.12±0.63） days, all P〈O.05]. The total effective rate of the acupuncture group was 96.9% （31/32）and that of the western medicine group was 90% （27/30）, thus the therapeutic effect of acupuncture group was better than that of western medicine group （P〈0.05）. Conclusion The therapeutic effect of acupuncture combined with direct moxibustion with fine-strip moxa is remarkable. It can effectively control the development of herpes zoster, alleviate pain and shorten therapy periods. It is worthy to be promoted and applied.
文摘Objective To compare the difference of clinical efficacy of thin cotton moxibustion combined with plum-blossom needle and western medication in treatment of herpes zoster.Method Eighty patients with herpes zoster were divided into thin cotton moxibustion group（group A,n=40） and western medication group（group B,n=40） according to the sequence of admission.Patients in group A received thin cotton moxibustion that the colton was used as thin as a cicada＇s wings,combined with plum-blossom needle,and patients in group B received intravenous infusion with 0.25 g of acyclovir once a day,and acyclovir ointment application on affected part for 3-5 times per day.Five days were considered as a course of treatment.Analgesic effect and the incidence of postherpetic neuralgia were observed after two consecutive courses.Result The total effective rate was 97.5%（39/40） in group A,and80.0%（32/40） in group B（P〈0.05）;it was shown from the comparison of course between two groups that the cure rate after one in group A was markedly higher than that in group B（P〈0.01,P〈0.05）;the differences in effectual time and analgesic time between group A and group B were statistically significant（P〈0.05）;after treatment,the incidence of postherpetic neuralgia in group A was markedly lower than that in group B（P〈0.05）.Conclusion Thin cotton moxibustion combined with plum-blossom needle in treatment of herpes zoster can obviously shorten the time of therapy,effectively control pain,and reduce the incidence of postherpetic neuralgia.
文摘Herpes simplex virus type-1 (HSV-1) is one of many pathogens that use the cell surface glycosaminoglycan heparan sulfate as a receptor. Heparan sulfate is highly expressed on the surface and extracellular matrix of virtually all cell types making it an ideal receptor. Heparan sulfate interacts with HSV-1 envelope glycoproteins gB and gC during the initial attachment step during HSV-1 entry. In addition,a modified form of heparan sulfate,known as 3-O-sulfated heparan sulfate,interacts with HSV-1 gD to induce fusion between the viral envelope and host cell membrane. The 3-O-sulfation of heparan sulfate is a rare modification which occurs during the biosynthesis of heparan sulfate that is carried out by a family of enzymes known as 3-O-sulfotransferases. Due to its involvement in multiple steps of the infection process,heparan sulfate has been a prime target for the development of agents to inhibit HSV entry. Understanding how heparan sulfate functions during HSV-1 infection may not only be critical for inhibiting infection by this virus,but it may also be crucial in the fight against many other pathogens as well.
文摘Human herpesviruses （HVs） have developed ingenious mechanisms that enable them to traverse the defenses of the central nervous system （CNS）. The ability of HVs to enter a state of latency, a defining char- acteristic of this viral family, allows them to persist in the human host indefinitely. As such, HVs represent the most frequently detected pathogens in the brain. Under constant immune pressure, these infections are largely asymptomatic in healthy hosts. However, many neurotropic HVs have been directly connected with CNS pathology in the context of other stressors and genetic risk factors. In this review, we discuss the potential mechanisms by which neurotropic HVs contribute to neurodegenerative disease （NDD） patholo- gy by highlighting two prominent members of the HV family, herpes simplex virus 1 （HSV-1） and human herpesvirus 6 （HHV-6）. We （i） introduce the infectious pathways and replicative cycles of HSV-1 and HHV-6 and then （ii） review the clinical evidence supporting associations between these viruses and the NDDs Alzheimer＇s disease （AD） and multiple sclerosis （MS）, respectively. We then （iii） highlight and dis- cuss potential mechanisms by which these viruses exert negative effects on neurons and glia. Finally, we （iv） discuss how these viruses could interact with other disease-modifying factors to contribute to the initiation and/or progression of NDDs.
基金Research of YY and HWF is supported by grants from the Special Research Fund of Ghent University(CSC-cofunding grant and Concerted Research Action GOA013-17).
文摘TypeⅢinterferons(IFNs)represent the most recently discovered group of IFNs.Together with typeⅠIFNs(e.g.IFN-α/β),typeⅢIFNs(IFN-λ)are produced as part of the innate immune response to virus infection,and elicit an anti-viral state by inducing expression of interferon stimulated genes(ISGs).It was initially thought that typeⅠIFNs and typeⅢIFNs perform largely redundant functions.However,it has become evident that typeⅢIFNs particularly play a major role in antiviral protection of mucosal epithelial barriers,thereby serving an important role in the first-line defense against virus infection and invasion at contact areas with the outside world,versus the generally more broad,potent and systemic antiviral effects of typeⅠIFNs.Herpesviruseses are large DNA viruses,which enter their host via mucosal surfaces and establish lifelong,latent infections.Despite the importance of mucosal epithelial cells in the pathogenesis of herpesviruses,our current knowledge on the interaction of herpesviruses with typeⅢIFN is limited and largely restricted to studies on the alphaherpesvirus herpes simplex virus(HSV).This review summarizes the current understanding about the role of IFN-λin the immune response against herpesvirus infections.
基金supported by grants from the National Natural Science Foundation of China-Yunnan Joint Found(NSFC,U2202215,U1602226)the National Natural Science Foundation of China(NSFC,81672040 to J.Zhou,8206306 to X.Cao,and 31802026 to L.Li)+11 种基金the Ministry of Science and Technology of China(MOST,2018YFC2000402,2018YFE0203700)the Ministry of Science and Technology of China Foreign Expert Program to J.Zhou(G2021061008L)the CAS“Light of West China”Program(xbzg-zdsys-201909)to J.Zhou,a Thousand Foreign Talent scholarship from Yunnan Province and High-end Foreign Expert Project of Yunnan Revitalization Talent Support Program to J.Zhouthe Technology Innovation Team of Kunming Medical University(CXTD201804)the International Science and Technology Cooperation Project(2017IB011)the Yunnan Training Project for Medical Talents(L-2017014)the biomedical Special Project of the Department of Science and Technology of Yunnan Province(202102AA100007-4)to X.Caothe Chinese Academy of Sciences President's International Fellowship Initiative(PIFI,2019VBA0045)to N.W.Fraserthe China Postdoctoral Science Foundation(2022MD713758)to E.Wangthe Medical reserve Talents Training Program of Yunnan Provincial Health Commission of China(H-2019059)to X.Huangthe Yunnan Fundamental Research Projects(202201AT070195)to Y.Ye.Open Research Fund HXDT-2019-1 to J.Zhou.
文摘Herpes simplex virus-1(HSV-1)is a widespread neurotropic virus that can reach the brain and cause a rare but acute herpes simplex encephalitis(HSE)with a high mortality rate.Most patients present with changes in neurological and behavioral status,and survivors suffer long-term neurological sequelae.To date,the pathogenesis leading to brain damage is still not well understood.HSV-1 induced encephalitis in the central nervous system(CNS)in animals are usually very diffuse and progressing rapidly,and mostly fatal,making the analysis difficult.Here,we established a mouse model of HSE via intracerebral inoculation of modified version of neuralattenuated strains of HSV-1(deletion of ICP34.5 and inserting a strong promoter into the latency-associated transcript region),in which the LMR-αΔpA strain initiated moderate productive infection,leading to strong host immune and inflammatory response characterized by persistent microglia activation.This viral replication activity and prolonged inflammatory response activated signaling pathways in neuronal damage,amyloidosis,Alzheimer's disease,and neurodegeneration,eventually leading to neuronal loss and behavioral changes characterized by hypokinesia.Our study reveals detailed pathogenic processes and persistent inflammatory responses in the CNS and provides a controlled,mild and non-lethal HSE model for studying long-term neuronal injury and increased risk of neurodegenerative diseases due to HSV-1 infection.
文摘The Wnt/β-catenin signaling pathway is instrumental in successful differentiation and proliferation of mammalian cells. It is therefore not surprising that the herpesvirus family has developed mechanisms to interact with and manipulate this pathway. Successful coexistence with the host requires that herpesviruses establish a lifelong infection that includes periods of latency and reactivation or persistence. Many herpesviruses establish latency in progenitor cells and viral reactivation is linked to host-cell proliferation and differentiation status. Importantly, Wnt/β-catenin is tightly connected to stem/progenitor cell maintenance and differentiation. Numerous studies have linked Wnt/β-catenin signaling to a variety of cancers, emphasizing the importance of Wnt/β-catenin pathways in development, tissue homeostasis and disease. This review details how the alpha-, beta-, and gammaherpesviruses interact and manipulate the Wnt/β-catenin pathway to promote a virus-centric agenda.
文摘The aim of our minireview is to provide a brief overview of the diagnosis,clinical aspects,treatment options,management,and current literature available regarding herpes simplex keratitis(HSK).This type of corneal viral infection is caused by the herpes simplex virus(HSV),which can affect several tissues,including the cornea.One significant aspect of HSK is its potential to cause recurrent episodes of inflammation and damage to the cornea.After the initial infection,the HSV can establish a latent infection in the trigeminal ganglion,a nerve cluster near the eye.The virus may remain dormant for extended periods.Periodic reactivation of the virus can occur,leading to recurrent episodes of HSK.Factors triggering reactivation include stress,illness,immunosuppression,or trauma.Recurrent episodes can manifest in different clinical patterns,ranging from mild epithelial involvement to more severe stromal or endothelial disease.The severity and frequency of recurrences vary among individuals.Severe cases of HSK,especially those involving the stroma and leading to scarring,can result in vision impairment or even blindness in extreme cases.The cornea's clarity is crucial for good vision,and scarring can compromise this,potentially leading to visual impairment.The management of HSK involves not only treating acute episodes but also implementing long-term strategies to prevent recurrences and attempt repairs of corneal nerve endings via neurotization.Antiviral medications,such as oral Acyclovir or topical Ganciclovir,may be prescribed for prophylaxis.The immune response to the virus can contribute to corneal damage.Inflammation,caused by the body's attempt to control the infection,may inadvertently harm the corneal tissues.Clinicians should be informed about triggers and advised on measures to minimize the risk of reactivation.In summary,the recurrent nature of HSK underscores the importance of both acute and long-term management strategies to preserve corneal health and maintain optimal visual function.
文摘Objective: To study the role of monocytes in the pathogenesis of genital herpes. Methods: TNF- α and IL-6 levels in 27 cases of genital herpes were detected by enzyme linked immunosorbant assay (ELISA). HLA class Ⅱ antigen expression on monocytes were detected by an alkaline phosphatase anti-alkaline phosphatase method. Results: Compared with normal controls, levels of TNF- a and IL - 6 secreted by monocytes responding to LPS mitogen in vitro were significantly decreased [(3.13 ± 0.44ng/ml) vs (4.68 ± 0.54ng/ml), P<0.05 and (3.32 ± 1.06ng/ml) vs (6.46 ± 1.94ng/ ml), P<0.05, respectively]. HLA class Ⅱ antigen expression on monocytes in the genital herpes group was also significantly decreased [HLA-DR (67.48% ± 1.51%) vs (81.03% ± 1.32%), P<0.01 and HLA-DQ (29.54% ± 1.15%) vs (37.63% ± 1.79%), P <0.01 respectively]. Conclusion: These findings suggest that the decreased monocyte function may contribute to the pathogenesis of genital herpes. Augmenting or inducing monocyte function may be important in the prevention, treatment, and reduction of genital herpes cases.
文摘Periodontitis is the inflammation of the supporting structures around the dentition.Several microbial agents,mostly bacteria,have been identified as causative factors for periodontal disease.On the other hand,oral cavity is a rich reservoir for viruses since it contains a wide variety of cell types that can be targeted by viruses.Traditionally,the focus of research about the oral flora has been on bacteria because the most widespread oral diseases,like periodontitis and dental caries,are outcomes of bacterial infection.However,recently and especially after the emergence of coronavirus disease 2019,there is a growing tendency toward including viruses also into the scope of oral microbiome investigations.The global high prevalence of periodontitis and viral infections may point out to a concomitant or synergistic effect between the two.Although the exact nature of the mechanism still is not clearly understood,this could be speculated through the manipulation of the immune system by viruses;hence facilitating the furthermore colonization of the oral tissues by bacteria.This review provides an extensive and detailed update on the role of the most common viruses including herpes family(herpes simplex,varicella-zoster,Epstein-Barr,cytomegalovirus),Human papillomaviruses,Human immunodeficiency virus and severe acute respiratory syndrome coronavirus 2 in the initiation,progression and prognosis of periodontitis.
