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Magnitude and dynamics of the T-cell response to SARS-CoV-2 infection at both individual and population levels.
Front Immunol
January 2025
Adaptive Biotechnologies, Seattle, WA, United States.
Introduction: T cells are involved in the early identification and clearance of viral infections and also support the development of antibodies by B cells. This central role for T cells makes them a desirable target for assessing the immune response to SARS-CoV-2 infection.
Methods: Here, we combined two high-throughput immune profiling methods to create a quantitative picture of the T-cell response to SARS-CoV-2.
Differential pathological changes in colon microenvironments in acute and chronic mouse models of inflammatory bowel disease.
Anim Cells Syst (Seoul)
January 2025
Department of Microbiology, Graduate School of Medicine, Gachon University, Incheon, South Korea.
Inflammatory bowel disease is a chronic condition characterized by inflammation of the gastrointestinal tract, resulting from an abnormal immune response to normal stimuli, such as food and intestinal flora. Since the etiology of this disease remains largely unknown, murine models induced by the consumption of dextran-sodium sulfate serve as a pivotal tool for studying colon inflammation. In this study, we employed both acute and chronic colitis mouse models induced by varying durations of dextran-sodium sulfate consumption to investigate the pathological and immunologic characteristics throughout the disease course.
View Article and Find Full Text PDFThe microbial communities and metabolic profiles of follicular fluid in patients with premature ovarian insufficiency.
Front Endocrinol (Lausanne)
January 2025
Department of Obstetrics and Gynecology, The Seventh Medical Center of Chinese People's Liberation Army (PLA) General Hospital, Beijing, China.
Introduction: Premature ovarian insufficiency (POI) is a condition characterized by ovarian dysfunction occurring before the age of 40, and its etiology is multifactorial, including genetic, immunological, infectious, environmental, and iatrogenic factors, with over half of the cases remaining unexplained. Whether the microbial communities and metabolites in follicular fluid, which is the direct microenvironment for oocyte survival, are related to POI has not been reported.
Methods: In this study, Follicular fluid samples of 26 patients with POI and 27 controls with a normal ovarian reserve were collected and analyzed using 16S rDNA sequencing and untargeted metabolomics.
Detection of Eosinophilic Cell-free Granules Based on Expression of CCR3 and MBP Markers in Esophageal Biopsy Specimens of Patients with Suspected and Confirmed Eosinophilic Esophagitis.
Pediatr Gastroenterol Hepatol Nutr
January 2025
Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Purpose: Eosinophilic esophagitis (EoE) is the most well-known eosinophilic gastrointestinal disorder (EGID) characterized by the presence of a high number eosinophils within the esophageal epithelium and the clinical signs. Biopsies of patients with suspected EoE may not show a high number of eosinophils, however the presence of granules may help with the diagnosis. This study aims to evaluate the presence of cell-free eosinophil granules in the esophageal tissue of patients with suspected and confirmed EoE to accelerate the diagnosis and treatment of patients with low eosinophil count.
View Article and Find Full Text PDF[Progress of researches on mosquito salivary allergens].
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
December 2024
Department of Laboratory Medicine, Jiangnan University Medical Center, Wuxi, Jiangsu 214001, China.
There are multiple bioactive substances in the mosquito saliva, most of which are allergic to humans. Previous studies have demonstrated that mosquito bites may induce allergic reactions mediated by B and T lymphocytes, resulting in a reduction in the quality of life and even death among patients. To date, 11 salivary allergens and 8 non-salivary allergens have been characterized in mosquitoes.
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