Hydroxyurea-resistant (HUD) baby hamster kidney cells were isolated, subcloned, and characterized. One clonal line, which contained elevated levels of ribonucleotide reductase, lost its HU resistance during passage in the absence of the inhibitor, whereas another clonal line was stably resistant. The replication of herpes simplex virus type 1 on these cells was compared with that of the parvovi...

INTRODUCTION The changing epidemiology of genital herpes in Edinburgh is described in relation to herpes simplex virus (HSV) Type 1 and herpes simplex virus Type 2 infection over a period of 14 years. METHODS 2018 episodes of genital herpes in 1794 patients over a 14 year period were assessed. Data on age, sex, sexual orientation, geographical origin and herpes antibodies were also analysed. ...

This case is reported to raise awareness of herpes simplex encephalitis as a persisting brain disorder. A 66 year old immunocompetent man developed status epilepticus and died of pneumonia in the course of progressive hemiparesis, cognitive decline, and atrophy of the brain over a five year period after herpes simplex encephalitis. In addition to a completely destroyed left temporal lobe, necro...

transcription by herpes simplex virus type 1.

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...

The triphosphate form of the acyclovir analog BW759U (9-[[2-hydroxy-1-(hydroxymethyl)ethoxy]methyl]guanine) inhibited the DNA polymerases (EC 2.7.7.7) from several strains of herpes simplex virus type 1. Two acyclovir triphosphate-resistant DNA polymerases were as sensitive to BW759U-triphosphate as were the DNA polymerases induced by wild-type viruses (Ki = 0.05 to 0.1 microM). The Ki value fo...

Three consecutive patients with no apparent immunodeficiency who had frequent intraoral herpes simplex type 1 recurrences, a rare complication of herpes simplex virus infection, were found to have a total deficiency of either the A or B isotype of the complement component C4 and to be homozygous for the studied HLA antigens. A combination of HLA homozygosity, which may lead to impaired T cell r...

A series of twelve recently synthesized 6-substituted derivatives of 9-beta-d-ribofuranosylpurine 3',5'-cyclic phosphate (RPcMP) were evaluated for in vitro antiviral activity, using inhibition of viral cytopathogenic effect as the primary parameter for evaluation. Inhibition of the development of intra- and extracellular virus titer was used as a secondary criterion with certain viruses. Five ...