Specific mutations within the hypervariable herpes simplex virus (HSV) gene thymidine kinase (TK) gene lead to acyclovir (ACV) resistance. To uncover the existence of latent ACV-resistant (ACV(R)) HSV-1, we determined the genetic and functional variability of the HSV-1 TK gene pool in paired trigeminal ganglia (TG) of 5 immunocompetent individuals. The latent virus pool consisted of a donor-specific HSV-1 quasispecies, including one major ACV-sensitive (ACV(S)) and multiple phylogenetic-related minor ACV(S) and ACV(R) TK variants. Contrary to minor variants, major TK variants were shared between paired TG. The data demonstrate the coexistence of phylogenetic-related ACV(S) and ACV(R) latent HSV-1 in human TG.
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http://dx.doi.org/10.1093/infdis/jis237 | DOI Listing |
Mol Neurobiol
December 2024
Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Virus encephalitis (VE), recognized as one of the common kinds of central nervous system (CNS) diseases after virus infection, has a surprising correlation with autoimmune encephalitis (AE) when autoimmune antibodies emerge in cerebrospinal fluid (CSF) or serum. Herpes simplex virus and Epstein-Barr virus are the most critical agents worldwide. By molecular mimicry, herpes viruses can invade the brain directly or indirectly.
View Article and Find Full Text PDFLife Sci
December 2024
School of Life Sciences, Tianjin University, Tianjin, China. Electronic address:
Lactoferrin (Lf) is a naturally occurring glycoprotein known for its antiviral and antibacterial properties and is present in various physiological fluids. Numerous studies have demonstrated its antiviral effectiveness against multiple viruses, such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), influenza virus (IFV), herpes simplex virus (HSV), hepatitis B virus (HBV), and human immunodeficiency virus (HIV). Lf, a vital component of the mucosal defense system, plays a crucial role in inhibiting viral infection by binding to both host cells and viral particles, such as the Hepatitis C virus (HCV).
View Article and Find Full Text PDFJ Nat Med
December 2024
School of Agriculture, Tokai University, 871-12 Sugido, Mashiki-Cho, Kamimashiki-Gun, Kumamoto, 861-2205, Japan.
Ipomoea alba L. (Convolvulaceae) is an annual vine native to tropical America that is cultivated primarily for ornamental purposes. Its seeds are used in traditional medicine as a laxative, and young shoots are consumed as food.
View Article and Find Full Text PDFClin Microbiol Infect
December 2024
Department of Infectious Diseases, Aalborg University Hospital, 9000 Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, 9000 Aalborg, Denmark; European Society of Clinical Microbiology and Infectious Diseases Study Group of Infections of the Brain (ESGIB).
Background: Infectious encephalitis poses a global health challenge with a high mortality and severe neurological consequences in survivors. Emerging pathogens and outbreaks are reshaping the patterns of the disease.
Objective: To understand the current epidemiology for improving prevention, diagnosis, and treatment.
World J Virol
December 2024
Department of Ophthalmology, University Hospital of Udine, Udine 33100, Italy.
Background: Blepharoconjunctivitis poses a diagnostic challenge due to its diverse etiology, including viral infections. Blepharoconjunctivits can be acute or chronic, self-limiting, or needing medical therapy.
Aim: To review possible viral agents crucial for accurate differential diagnosis in cases of blepharoconjunctivitis.
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