Novel variants of human herpesvirus 2 from Brazilian HIV-1 coinfected subjects.

Mem Inst Oswaldo Cruz

Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório de Virologia Molecular, Rio de Janeiro, RJ, Brasil.

Published: December 2018

BACKGROUND Human herpesvirus 2 (HHV-2) have DNA genome with a limited genetic variability and have been classified into two clades. OBJECTIVES To identify and characterise six HHV-2 isolates derived from Brazilian women. METHODS HHV-2 isolates were performed polymerase chain reaction (PCR) and sequencing of 2250 pb of the glycoprotein B (gB) coding regions. FINDINGS Four HHV-2 isolates were classified into clade B, while the remaining two, derived from HIV-1 co-infected women, showed a notable genetic divergence (> 1%). MAIN CONCLUSION The results reveal novel HHV-2 variants. The impact of these novel variants on HHV-2 pathogenesis and HIV/HHV-2 coinfection need to be investigated.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6276022PMC
http://dx.doi.org/10.1590/0074-02760180328DOI Listing

Publication Analysis

Top Keywords

hhv-2 isolates
12
novel variants
8
human herpesvirus
8
hhv-2
6
variants human
4
herpesvirus brazilian
4
brazilian hiv-1
4
hiv-1 coinfected
4
coinfected subjects
4
subjects background
4

Similar Publications

Sexually transmitted proctitis, a prevalent concern among men who have sex with men (MSM) is frequently caused by a range of pathogens, including herpes simplex virus (HSV), and While HSV-associated proctitis typically presents with visible lesions, cases without external manifestations remain evasive. We report the case of an MSM in his early 30s presenting with dyschezia and perineal discomfort after unprotected anoreceptive intercourse. Despite initial inconspicuous findings, rectal swabs revealed HSV-2 infection.

View Article and Find Full Text PDF

Chemical characterization and evaluation of antiviral activity of two fucoidans extracted from Mediterranean brown seaweeds, Padina pavonica and Dictyopteris membranacea.

Lett Appl Microbiol

January 2025

Laboratory for Chemical, Galenic and Pharmacological Development of Drugs (LR12ES09), Faculty of Pharmacy of Monastir, University of Monastir, Monastir, BP 5000, Tunisia.

Brown seaweeds are known for their bioactive compounds, particularly sulfated polysaccharides such as fucoidans, which have demonstrated antiviral properties. However, limited studies have focused on the antiviral potential of fucoidans extracted from Mediterranean brown seaweeds. In this study, two brown seaweeds Padina pavonica and Dictyopteris membranacea (Fuc-Pad and Fuc-Dic, respectively) were collected from monastir coasts, Tunisia, and a specific extraction protocol was employed to obtain fucoidans.

View Article and Find Full Text PDF

BACKGROUND Herpes simplex virus (HSV) is a rare cause of hepatitis. HSV hepatitis can be life-threatening due to its rapid progression to liver failure if not treated on time. It affects primarily immunocompromised individuals but can also present in immunocompetent hosts.

View Article and Find Full Text PDF

Depot-medroxyprogesterone acetate (DMPA) and Norethisterone Enanthate (NET-EN) are progestin-only injectable contraceptives widely used by women in sub-Sharan Africa, where incidence of HIV-1 and HSV-2 infection remains high. Studies indicate that DMPA usage can increase the risk of HSV-2 infection, but limited data indicate no increased risk with use of NET-EN. We therefore investigated the effects of NET-EN and DMPA on susceptibility to vaginal HSV-2 infection in ovariectomized (OVX) mice and effects on immune responses, particularly in the vaginal tract (VT).

View Article and Find Full Text PDF

Genital Herpes: Rapid Evidence Review.

Am Fam Physician

November 2024

Eglin Air Force Base Family Medicine Residency Program in Florida.

Article Synopsis
  • - Genital herpes, caused by herpes simplex virus (HSV) types 1 or 2, is a lifelong sexually transmitted infection affecting over 500 million people globally, with no available vaccines for prevention.
  • - It is characterized by painful genital lesions and flu-like symptoms; diagnosis is typically made through laboratory tests like PCR or viral culture.
  • - Treatment includes antiviral medications to manage outbreaks and reduce transmission, and pregnant individuals with a history of genital herpes are advised to start antiviral therapy at 36 weeks and may require a cesarean section if lesions are present.
View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!