Background and objective: Langerhans cell histiocytosis (LCH) is a rare histiocytic proliferative disorder of unknown etiology and mainly affects young children. The histological feature is granuloma-like proliferation of langerhans-type dendritic cells. Although the possible role of viruses such as Epstein-Barr virus (EBV, Human Herpes virus -4</...

transcription by herpes simplex virus type 1.

Patients undergoing penetrating keratoplasty for prior herpes simplex keratitis (group A) and corneal disease unrelated to herpes simplex (group B) were investigated to assess whether the cornea is a site for herpes simplex viral latency. All patients were seropositive for herpes simplex viral antibody. Virus was isolated from the tear film postoperatively in one patient and on cocultivation fr...

Trigeminal neuritis usually is caused by an inflammatory reaction to herpes simplex virus, which often resides within the gasserian ganglion of the trigeminal nerve. Transaxonal movement of the virus between the ganglion and peripheral nerves within the oral cavity has been documented [1 , 2]. The virus can be isolated from the painful aphthous ulcers within the oral cavity and the typical cold...

virus with 2 subtypes: herpes simplex virus 1 (HSV-1) and herpes simplex virus 2 (HSV-2). Although each is a distinct virus, they share some antigenic components. HSV causes vesicular and ulcerative lesions in healthy individuals and may cause severe systemic disease in neonates and immunosuppressed hosts. Infection with HSV-1 commonly causes oropharyngeal infection, and transmission is primari...

Latent herpes simplex virus type 1 DNA has a nucleosomal structure similar to that of cellular chromatin, as determined by micrococcal nuclease digestion. All of the major regions, including the transcriptionally active region of the genome, were found to be associated with nucleosomes. Such a chromatin structure is likely to be an important element in the control of herpes simplex virus type 1...

A survey to identify the aetiology of hearing impairment among Saudi children was carried out. Children were divided into two groups according to presence or absence of laboratory evidence of herpes simplex virus infection 'at risk' and 'not at risk'. Serological tests for herpes simplex virus infection were performed on 1054 children. We found positive IgM antibody against herpes simplex virus...

Herpes are a group of similar viruses that responsible for number infecting diseases, the most important which herpes simplex, zoster and pseudopox. Resistance to traditional antiviral medications is becoming increasingly common, making treatment such infections even more difficult. For example, usage nucleoside analogues like acyclovir target DNA-polymerase virus on regular long-term basis pro...

The first Russian clinical case of monkeypox in combination with herpes simplex type 1 infection a 29-year-old man who returned from Portugal is described. protocols for sequencing the virus genome are presented. Particular attention paid to difficulty diagnosing vesicular rash patients suspicious history.