The hepatitis C virus is characterized by significant genetic heterogeneity. It is currently classified into six main genotypes and several subtypes. Determining the genotype of the virus is important in clinical practice for guiding the treatment for individuals with chronic hepatitis C. The prevalence of different genotypes and subtypes of the hepatitis C virus has not been fully studied in some regions of Brazil. In this study, 788 samples from patients with chronic hepatitis C who were attended at the Viral Hepatitis Reference Centers in Belo Horizonte were analyzed between 2002 and 2006. The genotyping of the virus was performed by direct sequencing of the 5 UTR region. Additionally, phylogenetic analysis was performed, including all of the genotypic variants obtained. High prevalence of genotype 1 (78.4%; 1b [40.4%], 1a [37.5%] and 1a/b [0.5%]) was observed, followed by genotypes 3a (17.9%) and 2b (3.1%). Three samples were identified as genotype 2a/c (0.4%) and two as genotype 4 (0.2%). The phylogenetic analysis showed the expected segregation of the sequences obtained, with regard to the reference sequences for genotypes 1, 2, 3 and 4, except for two samples of genotype 1a. The high prevalence of genotype 1 (78.4%) found in this population from Belo Horizonte was similar to previous reports from other cities such as Rio de Janeiro, but it was higher than what has been described in São Paulo and in the south of the country. The presence of rare atypical sequences from the 5 UTR region suggests that variants in the hepatitis C virus exist in this population.
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http://dx.doi.org/10.1590/s0037-86822008000300003 | DOI Listing |
Hematology
December 2025
Division of Hematology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, and King Chulalongkorn Memorial Hospital, Thai Red Cross, Bangkok, Thailand.
Background: Hemoglobin (Hb) Hekinan is a prevalent α-globin variant frequently missed in thalassemia screening centers using high-performance liquid chromatography (HPLC) or capillary electrophoresis. This study aims to investigate the hematological and molecular characteristics of Hb Hekinan in a large cohort.
Methods: Hb variants were identified using isoelectric focusing (IEF) and HPLC.
Clin Infect Dis
January 2025
Department of Cellular Therapy and Allogeneic Stem Cell Transplantation, Karolinska University Hospital Huddinge, Karolinska Comprehensive Cancer Center, Stockholm, Sweden.
Herpes simplex virus (HSV) infection is one of the most prevalent viral infections worldwide. In general, host immunity is sufficient to clear viral shedding and recurrences, although it is insufficient to prevent subsequent virologic reactivations. In immunocompromised patients, prolonged and difficult-to-treat HSV infections may develop.
View Article and Find Full Text PDFFront Endocrinol (Lausanne)
January 2025
School of Public Health, Xinjiang Medical University, Urumqi, Xinjiang, China.
Objective: Diabetic neuropathy (DN), a common and debilitating complication of diabetes, significantly impairs the quality of life of affected individuals. While multiple studies have indicated changes in the expression of specific matrix metalloproteinases (MMPs) in patients with DN, and basic research has reported the impact of MMPs on DN, there is a lack of systematic research and the causal relationship remains unclear. The objective of this research is to investigate the casual relationship between MMPs and DN through two-sample Mendelian randomization (MR).
View Article and Find Full Text PDFNiger Med J
January 2025
Department of Haematology and Blood Transfusion, Rivers State University Teaching Hospital & Faculty of Basic Clinical Sciences, Rivers State University, Nigeria.
Background: Microalbuminuria, an early indicator of kidney damage in Sickle Cell Disease (SCD) patients, is linked to a heightened risk of chronic kidney disease (CKD) in adulthood. This study investigates the determinants of microalbuminuria in paediatric SCD patients in South-South Nigeria.
Methodology: This cross-sectional study was conducted over six months at the Rivers State University Teaching Hospital, Nigeria, involving 60 children with [HbSS genotype, SCD] in a steady state.
IJID Reg
March 2025
Laboratorio de Inmunología y Virología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, México.
Objectives: This study aimed to determine the prevalence and genotyping of human papillomavirus (HPV) and to assess co-infection with Epstein-Barr virus (EBV) in oral cavity and oropharyngeal cancers (OC and OPC) specimens from patients at a tertiary care hospital in Northeastern Mexico.
Methods: Formalin-fixed and paraffin-embedded tumor specimens from 41 patients with OC and OPC were evaluated. HPV detection and genotyping were performed using the Ampliquality HPV-Type Express kit.
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