Lymphocyte subpopulations (B, T4, T8), monocytes/macrophages (LeuM5, KiM5) and HLA-DR antigen expression were studied immunohistochemically in frozen sections from 32 antral and 37 fundal biopsies of type-B chronic gastritis. Aberrant HLA-DR antigen expression in epithelial cells of gastric mucosa was found in all cases closely related to mononuclear infiltrates. Epithelial HLA-DR expression and mononuclear infiltrates were practically absent in foci of intestinal metaplasia. These findings suggest that an immunopathologic mechanism probably plays a role in initiation or perpetuation of type-B chronic gastritis.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/BF00718611 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Chitosan Nanoparticles for Enhanced Immune Response and Delivery of Multi-Epitope Vaccines in a BALB/c Mouse Model.
Pharmaceutics
January 2025
Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal.
: is the leading cause of chronic gastritis, peptic ulcer, gastric adenocarcinoma, and mucosal-associated lymphoma. Due to the emerging problems with antibiotic treatment against in clinical practice, vaccination has gained more interest. Oral immunization is considered a promising approach for preventing initial colonization of this bacterium in the gastrointestinal tract, establishing a first line of defense at gastric mucosal surfaces.
View Article and Find Full Text PDFHP0135 Is a Small Lipoprotein That Has a Role in Outer Membrane Stability.
Molecules
January 2025
Department of Microbiology, University of Georgia, Athens, GA 30602, USA.
is a Gram-negative bacterium and human pathogen that is linked to various gastric diseases, including peptic ulcer disease, chronic gastritis, and gastric cancer. The filament of the flagellum is surrounded by a membranous sheath that is contiguous with the outer membrane. Proteomic analysis of isolated sheathed flagella from B128 identified the lipoprotein HP0135 as a potential component of the flagellar sheath.
View Article and Find Full Text PDFand Variant Alleles Affect Susceptibility to Infection and Severity of -Associated Clinical Manifestations.
Int J Mol Sci
January 2025
Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia.
Considering the mutual relationship between redox disbalance and inflammation in (HP) infection, we aimed to evaluate whether the polymorphisms in antioxidant glutathione transferases genes ( rs1695, rs1138272, rs4925 and rs156697) modify susceptibility to HP infection, as well as the severity of HP-associated gastric manifestation development. Therefore, GST gene polymorphisms were determined via the appropriate PCR in 101 HP-positive and 107 HP-negative patients. Our results show that carriers of the variant genotype (rs1695) or at least one variant allele (rs1138272) were more prone to the development of HP-positive gastritis compared with reference allele carriers (OR = 3.
View Article and Find Full Text PDFGastric Microbiota Associated with Gastric Precancerous Lesions in -Negative Patients.
Microorganisms
January 2025
Division of Gastroenterology, Department of Internal Medicine and Gastrointestinal Cancer Center, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul 03181, Republic of Korea.
Studies on the gastric microbiota associated with gastric precancerous lesions remain limited. This study aimed to profile the gastric mucosal microbiota in patients with -negative precancerous lesions. Gastric mucosal samples were obtained from 67 -negative patients, including those with chronic gastritis (CG), intestinal metaplasia (IM), and dysplasia.
View Article and Find Full Text PDFThe Influence of Gastric Microbiota and Probiotics in Infection and Associated Diseases.
Biomedicines
December 2024
Department of Environmental Microbiology, School of Earth and Environmental Sciences, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow 226025, India.
The role of microbiota in human health and disease is becoming increasingly clear as a result of modern microbiome studies in recent decades. The gastrointestinal tract is the major habitat for microbiota in the human body. This microbiota comprises several trillion microorganisms, which is equivalent to almost ten times the total number of cells of the human host.
View Article and Find Full Text PDFWant 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!