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Article in Chinese | WPRIM | ID: wpr-948897


The study investigated the inhibitory effect and mechanism of tectorigenin derivative(SGY) against herpes simplex virus type Ⅰ(HSV-1) by in vitro experiments. The cytotoxicity of SGY and positive drug acyclovir(ACV) on African green monkey kidney(Vero) cells and mouse microglia(BV-2) cells was detected by cell counting kit-8(CCK-8) method, and the maximum non-toxic concentration and median toxic concentration(TC_(50)) of the drugs were calculated. After Vero cells were infected with HSV-1, the virulence was determined by cytopathologic effects(CPE) to calculate viral titers. The inhibitory effect of the tested drugs on HSV-1-induced cytopathy in Vero cells was measured, and their modes of action were initially explored by virus adsorption, replication and inactivation. The effects of the drugs on viral load of BV-2 cells 24 h after HSV-1 infection and the Toll-like receptor(TLR) mRNA expression were detected by real-time fluorescence quantitative PCR(RT-qPCR). The maximum non-toxic concentrations of SGY against Vero and BV-2 cells were 382.804 μg·mL~(-1) and 251.78 μg·mL~(-1), respectively, and TC_(50) was 1 749.98 μg·mL~(-1) and 2 977.50 μg·mL~(-1), respectively. In Vero cell model, the half maximal inhibitory concentration(IC_(50)) of SGY against HSV-1 was 54.49 μg·mL~(-1), and the selection index(SI) was 32.12, with the mode of action of significantly inhibiting replication and directly inactivating HSV-1. RT-qPCR results showed that SGY markedly reduced the viral load in cells. The virus model group had significantly increased relative expression of TLR2, TLR3 and tumor necrosis factor receptor-associated factor 3(TRAF3) and reduced relative expression of TLR9 as compared with normal group, and after SGY intervention, the expression of TLR2, TLR3 and TRAF3 was decreased to different degrees and that of TLR9 was enhanced. The expression of inflammatory factors inducible nitric oxide synthase(iNOS), tumor necrosis factor-α(TNF-α), and interleukin-1β(IL-1β) was remarkably increased in virus model group as compared with that in normal group, and the levels of these inflammatory factors dropped after SGY intervention. In conclusion, SGY significantly inhibited and directly inactivated HSV-1 in vitro. In addition, it modulated the expression of TLR2, TLR3 and TLR9 related pathways, and suppressed the increase of inflammatory factor levels.

Animals , Antiviral Agents/therapeutic use , Chlorocebus aethiops , Herpes Simplex/pathology , Herpesvirus 1, Human/metabolism , Isoflavones , Mice , TNF Receptor-Associated Factor 3/pharmacology , Toll-Like Receptor 2/metabolism , Toll-Like Receptor 3/metabolism , Toll-Like Receptor 9/metabolism , Toll-Like Receptors/metabolism , Tumor Necrosis Factor-alpha/metabolism , Vero Cells , Virus Replication
Autops. Case Rep ; 8(4): e2018050, Oct.-Dec. 2018. ilus
Article in English | LILACS | ID: biblio-986542


Herpes Simplex Virus infections (HSV) are ubiquitous. The neonatal HSV infection (NHSV) is rare. The incidence is estimated globally at only 10.3 per 100,000 births, but it can cause devastating disease in premature infants. Both HSV-1 and HSV-2 can be the etiologic agents in this type of vertically transmittted NHSV infection. Here we describe the pathological findings from a complete autopsy of a very low birth weight infant who succumbed to the infection despite early institution of antiviral treatment. We urge more awareness of this disease with continued surveillance; every effort should be taken to make an early diagnosis and thus prevent this devastating disease.

Humans , Female , Infant, Newborn , Pregnancy Complications, Infectious , Herpes Simplex/pathology , Autopsy , Pregnancy , Fatal Outcome , Rare Diseases , Premature Birth , Neonatal Sepsis
Rev. méd. Chile ; 144(9): 1214-1217, set. 2016. ilus
Article in Spanish | LILACS | ID: biblio-830630


Pityriasis lichenoides et varioliformis acuta (PLEVA), pityriasis lichenoides chronica (PLC) and febrile ulceronecrotic Mucha-Habermann disease (FUMHD) are considered different manifestations of the same disease. Febrile ulceronecrotic Mucha-Habermann disease is a rare, and potentially lethal illness which is characterized by fast progression of numerous papules that converge, ulcerate and form a plaque with a necrotic center, together with hemorrhagic vesicles and pustules that are associated with high fever and variable systemic symptoms. We report a 16 years old male presenting with erythematous papules with crusts and fever. The diagnosis of febrile ulceronecrotic Mucha-Habermann disease was confirmed with the pathological study of the lesions. He was successfully treated with minocycline after a failed attempt of treatment with prednisone.

Humans , Male , Adolescent , Prednisone/therapeutic use , Pityriasis Lichenoides/drug therapy , Herpes Simplex/drug therapy , Anti-Inflammatory Agents/therapeutic use , Minocycline/therapeutic use , Skin Ulcer/pathology , Treatment Outcome , Pityriasis Lichenoides/pathology , Herpes Simplex/pathology
An. bras. dermatol ; 91(2): 216-218, Mar.-Apr. 2016. graf
Article in English | LILACS | ID: lil-781357


Abstract Neonatal herpes is a serious condition. Newborns can be contaminated in utero via transplacental hematogenic transmission, upon delivery (the most frequent route), or during the postnatal period (indirect transmission). Optimal management requires prompt and accurate recognition, particularly in newborns, in order to prevent complications. Acyclovir is the treatment of choice, but its implementation is often delayed while awaiting test results, such as PCR and serology. Cytology for diagnostic purposes is rarely used in dermatology, despite the quick and reliable results. We report a case of neonatal herpes caused by type 2 herpes simplex virus diagnosed by cytology.

Humans , Male , Infant, Newborn , Pregnancy Complications, Infectious/pathology , Herpesvirus 2, Human , Herpes Simplex/pathology , Antiviral Agents/therapeutic use , Pregnancy Complications, Infectious/drug therapy , Skin/pathology , Acyclovir/therapeutic use , Cytological Techniques , Herpes Simplex/drug therapy
Pesqui. vet. bras ; 34(11): 1109-1114, nov. 2014. ilus, tab
Article in English | LILACS, VETINDEX | ID: lil-736037


Fatal Human herpesvirus 1 (HHV-1) was diagnosed in 12 captive marmosets (Callithrix jacchus and Callithrix penicillata) from metropolitan region of São Paulo, São Paulo State. Clinical signs were variable among the cases, but most affected marmosets presented signs associated with viral epithelial replication: oral, lingual and facial skin ulcers and hypersalivation, and viral replication in the central nervous system: prostration, seizure and aggressive behavior. Consistent microscopic findings were diffuse mild to severe nonsuppurative necrotizing meningoencephalitis with gliosis, vasculitis and neuronal necrosis. Additionally, in the brain, oral cavity, skin, adrenal gland and myoenteric plexus intranuclear inclusion bodies were present. Immunohistochemistry confirmed the presence of the HHV-1 antigen in association with lesions in the brain, oral and lingual mucosa, facial skin, adrenal gland and myoenteric plexus. HHV-1-specific polymerase chain reaction (PCR) analysis of the brain was carried out and the virus was detected in 7/8 infected marmosets. It is concluded that HHV-1 causes widespread fatal infection in marmosets.(AU)

Infecção fatal por Herpesvirus simplex Tipo 1 (HHV-1) foi diagnosticada em 12 saguis de cativeiro (Callithrix jacchus e Callithrix penicillata) provenientes da região metropolitana de São Paulo, Estado de São Paulo. Os sinais clínicos foram variáveis entres os casos, no entanto, a maioria dos saguis afetados apresentavam sinais associados à replicação viral em epitélios: úlceras na cavidade oral, língua e pele da face e hipersalivação; e no sistema nervoso central: prostração, convulsão e comportamento agressivo. Histologicamente, o principal achado foi meningoencefalite necrosante não supurativa difusa, leve a acentuada com gliose, vasculite e necrose neuronal. Inclusões intranucleares também foram observadas em encéfalo, cavidade oral, pele, glândula adrenal e plexo mioentérico. A imuno-histoquímica anti-HHV-1 confirmou a presença do antígeno viral em associação às lesões em encéfalo, mucosa oral e lingual, pele da face, glândula adrenal e plexo mioentérico. Em 7/8 saguis infectados foi detectada a presença de HHV-1 por reação em cadeia da polimerase (PCR) a partir de amostras de encéfalo. Conclui-se que HHV-1 causa uma infecção disseminada e fatal em saguis.(AU)

Animals , Callithrix/virology , Herpesvirus 1, Human , Encephalitis, Viral/veterinary , Herpes Simplex/pathology , Immunohistochemistry/veterinary , Polymerase Chain Reaction/veterinary
Arq. bras. oftalmol ; 76(2): 121-123, mar.-abr. 2013. ilus
Article in English | LILACS | ID: lil-678179


To report the case of a patient with bilateral herpetic lineal endotheliitis successfully treated with topic steroids and systemic antiviral. 17 year old female with blurred vision, at evaluation localized edema was observed on both corneas associated to Descemet folds and a line of pigmented precipitates. Topic prednisolone and oral acyclovir are initiated with complete resolution of signs and symptoms. Lineal endotheliitis is produced as an answer of endotelial cells to viral infection; maybe due to an immune reaction against some antigens from herpes virus family. It has the potential of relapses even in the absence of viral replication, with secondary untreatable stromal edema. It responds well to antiviral and steroids treatment, although, on those patients who don't improve, is necesary to make additional tests.

Relatar o caso de uma paciente com endotelite linear herpética bilateral tratado com sucesso por meio de corticoides tópicos e antivirais sistêmicos. Paciente do sexo feminino, 17 anos de idade, com a visão turva, na avaliação foi observado edema localizado em ambas as córneas associadas a dobras de Descemet e uma linha de precipitados ceráticos pigmentados. Prednisolona tópica e aciclovir oral foram utilizados com resolução completa dos sinais e sintomas. A endotelite linear é uma resposta das células endoteliais à infecção viral, talvez devido a uma reação imunológica contra alguns antígenos do vírus da família do herpes. Tem o potencial de recidiva, mesmo na ausência de replicação viral, com edema estromal secundário intratável. Ela responde bem ao tratamento antiviral e esteroides, embora, em pacientes que não melhoram, é necessária a realização de testes adicionais.

Adolescent , Female , Humans , Antiviral Agents/therapeutic use , Endothelium, Corneal , Eye Infections, Viral/drug therapy , Herpes Simplex/drug therapy , Acyclovir/therapeutic use , Endothelium, Corneal/pathology , Eye Infections, Viral/pathology , Glucocorticoids/therapeutic use , Herpes Simplex/pathology , Prednisolone/therapeutic use
Dermatol. argent ; 17(1): 52-56, ene.-feb. 2011. ilus
Article in Spanish | LILACS | ID: lil-724130


El virus del herpes simplex (VHS) tiene una marcada prevalencia y permanece latente de por vida en los individuos infectados. En pacientes inmunocomprometidos puede manifestarse de manera poco habitual y con mayor índice de recurrencias. Se comunican las observaciones clínicas de pacientes inmunocomprometidos, ya sea por VIH o por la utilización de terapias supresoras para el tratamiento de enfermedades ampollares autoinmunes, que se asocian con VHS. Dentro de este entorno fueron seleccionados dos pacientes VIH (+) con VHS que presentaron dificultad diagnóstica dada la clínica no clásica y cuatro pacientes con diferentes variedades de pénfigo exacerbados por el VHS.

The herpes simplex virus has a remarkable prevalence, remaining dormant for life on infectedpeople. On immunosuppressed patients it can manifiest itself in unusual ways, with a greaterrate of recurrence. The purpose of this study is to convey the clinical observartions performedon immunosuppressed patients, either HIV (+) or patients with bullous diseases treated withimmunosuppressive therapy that have intercurrent HSV. Within this enviroment we selected twoVIH (+) patients with HSV, that presented diagnostic difficulties because of its atypical clinicalpresentation, and four patients with different clinical types of pemphigus, immunosupressed, withtheir underlying disease presenting flares by the HSV.

Humans , Male , Female , Aged , Herpes Simplex/complications , Herpes Simplex/diagnosis , Herpes Simplex/pathology , Acquired Immunodeficiency Syndrome/complications , Pemphigus/diagnosis
An. bras. dermatol ; 85(6): 891-894, nov.-dez. 2010. ilus
Article in Portuguese | LILACS | ID: lil-573630


A doença de Mucha-Habermann ulceronecrótica febril (FUMHD) é uma variante clínica rara da pitiríase liquenoide variceliforme aguda (PLEVA). Tem etiologia incerta e é caracterizada por lesões úlceronecróticas, associadas a sintomas sistêmicos. Relata-se um caso de paciente masculino, com início agudo de lesões máculo-papulares, vesicobolhosas e úlceronecróticas, associadas à febre alta e mialgia. Tratado com prednisona 0,5 mg/kg/dia, obteve-se excelente resposta terapêutica. A FUMHD é uma variante severa da PLEVA, cujo diagnóstico é clínico e histopatológico. Vários tratamentos são descritos, tais como: metrotexate, corticoesteroides, PUVA, mas nenhum foi estabelecido.

The Febrile Ulceronecrotic Mucha-Habermann (FUMHD) disease is a rare variant of pityriasis lichenoides et varioliformis acuta (PLEVA). Its etiology still remains unknown and it is characterized by a sudden onset of ulceronecrotic skin lesions associated with systemic symptons. It is reported here the case of a male patient with a sudden and acute evolution of macules and papules, ulceronecrotic and vesicle-bullous lesions associated with systemic symptons. The patient was treated with prednisone 0,5 mg/kg/day with a dramatic response. The FUMHD is a severe variant of PLEVA and its diagnosis is clinical and histopathological. Many treatments such as methotrexate, corticosteroids and PUVA have been described .However, none of them has been settled.

Humans , Male , Middle Aged , Glucocorticoids/therapeutic use , Herpes Simplex/drug therapy , Pityriasis Lichenoides/drug therapy , Prednisone/therapeutic use , Herpes Simplex/pathology , Pityriasis Lichenoides/pathology , Treatment Outcome
An. bras. dermatol ; 85(4): 564-566, jul.-ago. 2010. ilus
Article in Portuguese | LILACS | ID: lil-560593


Desde as primeiras descrições da aids, no início da década de 1980, a infecção herpética é vista como uma das doenças oportunistas mais prevalentes em pacientes com retrovirose. A infecção pelo herpes-vírus simples tipo 2, agente etiológico de 60 a 90 por cento dos casos de herpes genital, é bastante comum em pacientes com aids. O acometimento mucocutâneo pelo herpes-vírus simples tipo 2 pode ser grave e prolongado (persistente por mais de um mês), sendo caracterizado como doença definidora de aids.

Since the first reports and descriptions of AIDS in the early 1980s, herpetic infection has been considered as one of the most prevalent and opportunistic aids related infections in patients with retroviral diseases Infection by Herpes simplex type 2 (HSV-2), the etiologic agent responsible for 60 percent to 90 percent of the cases of genital herpes, is very common among patients suffering from AIDS. Herpes simplex type 2 infection may cause severe and prolonged (over a period of time of one month) mucocutaneous onset of the disease, being characterized as an aids defining clinical condition.

Adult , Humans , Male , AIDS-Related Opportunistic Infections/pathology , Herpes Simplex/pathology , Skin Ulcer/pathology , AIDS-Related Opportunistic Infections/virology , Fatal Outcome , Herpes Simplex/virology , Skin Ulcer/virology
An. bras. dermatol ; 84(2): 137-142, mar.-abr. 2009. tab
Article in English, Portuguese | LILACS | ID: lil-515916


FUNDAMENTOS - O DNA viral pode atuar como oncogene, favorecendo o desenvolvimento de neoplasias, como as linfoides e da pele. Entre esses vírus, encontram-se alguns herpes-vírus humanos. OBJETIVO - Identificar a presença de DNA do herpes-vírus humano tipo 1 em neoplasias epiteliais pré-malignas,malignas e pele normal de indivíduos controle, avaliando seu papel na carcinogênese. MÉTODOS - Identificação, por reação em cadeia da polimerase, do DNA viral do tumor e pele sã de 41 pacientes e comparação com grupo controle, sem neoplasia. Análise estatística: Testes de Fisher e de McNemar. RESULTADOS - O vírus foi identificado em 20 indivíduos sem e em 21 com neoplasia. Destes últimos, 11 o expessaram apenas nas células tumorais. A diferença, entretanto, não foi estatisticamente significante. CONCLUSÕES - Parece não haver relação direta entre o encontro do DNA viral na pele sã e na pele tumoral. Sua presença pode facilitar o desenvolvimento da neoplasia ou apenas coincidir de se localizar onde esta já ocorreu.

BACKGROUND - Viral DNA may act as an oncogene, especially in skin and lymphoid organs. This group includes some human herpes virus. OBJECTIVE - To identify human herpes virus type 1 DNA in pre-malignant and malignant skin samples of epithelial tumors comparing to normal skin to determine its role in carcinogenesis. METHODS - Forty-one patients with epithelial tumors were submitted to biopsies from tumor and normal skin. The control group comprised 41 biopsies from patients with other dermatoses than cancer. After DNA extraction, polymerase chain reaction was performed to identify 199-bp band. The results were statistically evaluated by Fisher and McNemar tests. RESULTS - The virus was identified in 20 subjects without cancer and in 21 with skin cancer. From these, 11 expressed it only in tumor cells. This difference was not significant. CONCLUSION - There seem to be no direct relation between viral findings in normal skin and skin cancer cells. It may act as a promoter or just coexist at the same site where a neoplastic transformation has already occurred.

Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Carcinoma, Squamous Cell/virology , DNA, Viral/isolation & purification , Herpes Simplex/pathology , Herpesvirus 1, Human/isolation & purification , Precancerous Conditions/pathology , Skin Neoplasms/virology , Biopsy , Case-Control Studies , Carcinoma, Basal Cell/pathology , Carcinoma, Basal Cell/virology , Carcinoma, Squamous Cell/pathology , Cell Transformation, Neoplastic/pathology , Herpes Simplex/complications , Herpesvirus 1, Human/pathogenicity , Keratosis, Actinic/pathology , Keratosis, Actinic/virology , Polymerase Chain Reaction , Precancerous Conditions/virology , Skin Neoplasms/pathology , Young Adult
Rev. bras. oftalmol ; 58(5): 369-71, maio 1999. ilus
Article in Portuguese | LILACS | ID: lil-246886


A erupçäo variceliforme de Kaposi é uma manifestaçäo rara de infecçäo herpética. Apresentamos um paciente com episódios recorrentes de Herpes Simples, no surto relatado com acometimento bilateral e de ambas as pálpebras, regiäo orbital, paranasal e perilabial. Na córnea, ceratite puntada e "Shagreen". A recorrência, a bilateralidade e a falta da ceratite dendrítica tornam o caso näo usual

Humans , Male , Adolescent , Kaposi Varicelliform Eruption/pathology , Eye/pathology , Herpes Simplex/pathology , Blepharitis
Med. UIS ; 13(1): 28-33, ene.-feb. 1999.
Article in Spanish | LILACS | ID: lil-294236


El síndrome de TORCH (Toxoplasmosis, otros como Sífilis, Rubéola, Citomegalovirus y Herpesvirus) reune el grupo de agentes más comunes en infección intrauterina crónica, causante de las más serias lesiones embrionarias. La infección por el virus de inclusión citomegálica es la más común, afecta del 0.5 al 2 por ciento de los nacidos vivos, la toxoplasmosis afecta cerca de uno a cuatro por mil nacidos vivos, la rubéola a uno por mil en épocas no epidémicas y la sífilis presenta una incidencia variable. Las manifestaciones clínicas y serológicas varian con cada entidad pero es importante conocer que en nuestro medio existe un grupo considerable de gestantes en los grupos de riesgo ante el síndrome TORCH; se debe considerar estos agentes en el control periódico de toda gestante, incluyendo necesariamente, estudios serológicos para buscar anticuerpos específicos y análisis de la inmunidad contra los mismos. Es importante detectar los recién nacidos asitimáticos ya que pueden beneficiarse del tratamiento temprano; dichos casos deben continuar en control al menos durante el primer año. El conocimiento adecuado de la epidemiología de una comunidad determinada permitirá ampliar de una forma adecuada el tamizaje a otros agentes.

Humans , Pregnancy , Infant, Newborn , Cytomegalovirus Infections/drug therapy , Cytomegalovirus Infections/etiology , Herpes Simplex/pathology , Herpes Simplex/rehabilitation , Rubella Syndrome, Congenital/prevention & control , Rubella Syndrome, Congenital/drug therapy , Toxoplasma/isolation & purification , Toxoplasma/pathogenicity
In. Egas, Fausto; Loza, Homero; Orbea, Marco; Moral, Santiago. Enfermedades infecciosas y embarazo. Quito, EDIMEC, 1997. p.34-45.
Monography in Spanish | LILACS | ID: lil-206517
Journal of the Egyptian Public Health Association [The]. 1996; 71 (3-4): 285-307
in English | IMEMR | ID: emr-41494


Sixty seven cases of human oral S.C.C. with its intra oral variances were investigated microbiologically, histopathologically, histochemically and immunologically. Yeasts were isolated from 85% of examined cases. "Candifast test" showed that Candida albicans was the commonest form of the detected fungi, followed by C. parapsilosis and C. tropicalis, while the least in frequency was the Torulopsis glabrata. Yeasts were more detected in females, elders and tobacco smokers. Two cases of well differentiated S.C.C were surprisingly detected, and for the first time in literature, associated with a specific granulomatous reaction and showed positively impregnated fungi. While negative reactions for fungi were noticed in all lymphoepitheliomas, almost all the verrucous carcinoma were positive. Viral inclusion bodies were demonstrated for the first time by MT. This method was rapid, economic and could be used as a pilot study before applying the more specific monoclonal. antibody techniques or in-situ hybridization methods. Comparing the results of HSV hybridization with that of candida infection we found that both could be detected in some cases. The results indicate that viral and fungal factors may be synergetic in the development of oral carcinomas

Humans , Mouth Neoplasms , Herpes Simplex/pathology , Candidiasis, Oral/pathology , Simplexvirus/pathogenicity , Candida/pathogenicity