Objective: Autoimmune gastritis (AIG) is an immunomediated disease targeting parietal cells, eventually resulting in oxyntic-restricted atrophy. This long-term follow-up study aimed at elucidating the natural history, histological phenotype(s), and associated cancer risk of patients with AIG consistently tested -negative (naïve -negative subjects).
Design: Two-hundred eleven naïve -negative patients (tested by serology, histology, molecular biology) with AIG (F:M=3.15:1; p<0.001) were prospectively followed up with paired biopsies (T1 vs T2; mean follow-up years:7.5 (SD:4.4); median:7). Histology distinguished non-atrophic versus atrophic AIG. Atrophy was further subtyped/scored as non-metaplastic versus metaplastic (pseudopyloric (PPM) and intestinal (IM)). Enterochromaffin-like-cell (ECL) status was categorised as diffuse versus adenomatoid hyperplasia/dysplasia, and type 1 neuroendocrine tumours (Type1-NETs).
Results: Over the long-term histological follow-up, AIG consistently featured oxyntic-predominant-mononuclear inflammation. At T1, PPM-score was greater than IM (200/211 vs 160/211, respectively); IM scores increased from T1 to T2 (160/211 to 179/211), with no changes in the PPM prevalence (T1=200/211; T2=201/211). At both T1/T2, the prevalence of OLGA-III-stage was <5%; no Operative Link on Gastritis Assessment (OLGA)-IV-stage occurred. ECL-cell-status progressed from diffuse to adenomatoid hyperplasia/dysplasia (T1=167/14 vs T2=151/25). Type1-NETs (T1=10; T2=11) always coexisted with extensive oxyntic-atrophy, and ECL adenomatoid-hyperplasia/dysplasia. No excess risk of gastric or other malignancies was found over a cumulative follow-up time of 10 541 person years, except for (marginally significant) thyroid cancer (SIR=3.09; 95% CI 1.001 to 7.20).
Conclusions: Oxyntic-restricted inflammation, PPM (more than IM), and ECL-cell hyperplasia/neoplasia are the histological AIG hallmarks. Compared with the general population, corpus-restricted inflammation/atrophy does not increase the GC risk. The excess of GC risk reported in patients with AIG could plausibly result from unrecognised previous/current comorbidity.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1136/gutjnl-2022-327827 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Stereo-EEG around the world: State of the art in Italy.
Neurophysiol Clin
January 2025
Neuroscience and Human Genetics Department, Meyer Children's Hospital IRCCS, Full Member of European Reference Network on Rare and Complex Epilepsies, EpiCARE, viale Pieraccini 24, 50139, Florence, Italy; Neurofarba Department, University of Florence, viale Pieraccini 6, 50139, Florence, Italy.
Stereo-EEG is not just a diagnostic examination but a complex methodology, requiring an accurate synthesis of many data (anatomical, clinical, neurophysiological, cognitive, metabolic, and genetic). The implantation scheme is decided based on a hypothesis (or hypotheses) of epileptogenic zone localization. Subsequently, intracerebral electrical stimulation is used to define the extent of highly functional cortical regions and to reproduce the clinical symptoms and signs associated with seizures.
View Article and Find Full Text PDFBarriers and facilitators to healthy eating among college students.
Nutr Res
June 2024
Department of Food Science and Human Nutrition, G.M. Trout FSHN Building, College of Agriculture & Natural Resources, Michigan State University, East Lansing, MI, USA.
Young adulthood is an influential life stage for developing lifelong eating patterns, yet limited research characterizes dietary intake among young adults. This cross-sectional study assessed dietary intake and characteristics associated with nutrition knowledge and healthy food consumption among college students. We hypothesized that healthy food intake would be lower than United States (U.
View Article and Find Full Text PDFPrognostic significance of serum complement activation, neutrophil extracellular traps and extracellular DNA in newly diagnosed epithelial ovarian cancer.
Gynecol Oncol
January 2025
Departments of Internal Medicine and Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States of America; Department of Medicine, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, United States of America.
Purpose: We observed that the tumor microenvironment (TME) in metastatic epithelial ovarian cancer (EOC) and in other solid tumors can reprogram normal neutrophils to acquire a complement-dependent suppressor phenotype characterized by inhibition of stimulated T cell activation. This study aims to evaluate whether serum markers of neutrophil activation and complement at diagnosis of EOC would be associated with clinical outcomes.
Experimental Design: We conducted a two-center prospective study of patients with newly diagnosed EOC (N = 188).
Morbid obesity: Optimizing neuraxial analgesia and cesarean delivery outcomes.
Best Pract Res Clin Anaesthesiol
September 2024
Department of Anesthesiology, University Hospital Basel, Basel, Switzerland.
The issue of obesity continues to reach new levels globally, affecting individuals across the age continuum. Obesity in pregnancy is associated with myriad comorbidities which may negatively impact the fetus, particularly dysfunctional labor and failure to progress ending in unplanned cesarean delivery. Neuraxial anesthesia represents the gold standard for cesarean delivery anesthesia and is increasingly beneficial for obese patients due to the risk of difficult airway.
View Article and Find Full Text PDFAim: To estimate the prevalence of early childhood caries and to study a possible influence on different ethnicities in preschool children aged 3 to 5 with social exclusion risk.
Background: Oral diseases are a major global public health problem, with negative effects at both individual and collective levels, and there is a relationship between socioeconomic characteristics such as income, occupation and educational level, with the prevalence and severity of oral diseases.
Methods: A cross sectional study was conducted in a sample of 288 preschool children belonging to three schools in the Southeastern Spain among other variables dmft and ICDASS index.
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!