In systemic sclerosis esophagus is affected in 90% followed by anal and rectal involvement (50-70%), stomach (40-70%), colon (10-50%) and small bowel (40%). The main clinical findings are esophagic: dysphagia and sign of gastroesophageal reflux and its complications. Gastric symptomatology is a consequence of gastroparesis (postprandial fullness, nausea). Intestinal affection produces hypomotility (abdominal distention, deficient intestinal absorption, bacterial overgrowth). In colon there are diverticula, intestinal constipation, and fecal incontinence. For the diagnosis of GIT involvement the following are useful: studies of digestive tract with contrast media, endoscopy of upper GIT; gastric emptying; pH metry; esophageal and rectal manometry, as well as test to investigate deficient intestinal absorption syndrome. The prokinetic are a cornerstone for the treatment of hypomotility of GIT, along with pump proton inhibitors for the esophageal alteration and antibiotics for bacterial overgrowth.
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http://dx.doi.org/10.1016/S1699-258X(06)73104-7 | DOI Listing |
Front Immunol
January 2025
Reproductive Endocrinology and Regulation Laboratory, West China Second University Hospital, Sichuan University, Chengdu, China.
Polycystic ovary syndrome (PCOS) is a prevalent endocrine and metabolic disorder affecting 6-20% of women of childbearing age worldwide. Immune cell imbalance and dysregulation of inflammatory factors can lead to systematic low-grade chronic inflammation (SLCI), which plays a pivotal role in the pathogenesis of PCOS. A significant higher infiltration of immune cells such as macrophages and lymphocytes and pro-inflammatory factors IL-6 and TNF-α has been detected in PCOS organ systems, impacting not only the female reproductive system but also other organs such as the cardiovascular, intestine, liver, thyroid, brain and other organs.
View Article and Find Full Text PDFFront Immunol
January 2025
Department of Basic and Translational Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, United States.
Introduction: A subtype of human mast cells (MCs) found in the skin and to a lesser extent in the lung and gut express a novel G protein-coupled receptor (GPCR) known as Mas-related GPCR-X2 (MRGPRX2, mouse counterpart MrgprB2). In addition to drug-induced pseudoallergy and cutaneous disorders, MrgprB2 contributes to ulcerative colitis, IgE-mediated lung inflammation and systemic anaphylaxis. Interestingly, most agonists activate MRGPRX2 with higher potency than MrgprB2.
View Article and Find Full Text PDFJ Pathol
January 2025
Radiation Oncology Key Laboratory of Sichuan Province, Department of Experimental Research, Sichuan Cancer Hospital & Institute, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, PR China.
Intestinal stem cells (ISCs) and Paneth cells (PCs) reside at the bottom of the crypts of Lieberkühn in the small intestine. Recent studies have shown that the transcription factor Mist1, also named BHLHA15, plays an important role in the maturation of PCs. Since there is an intimate interaction between PCs and ISCs, we speculated that the loss of Mist1 could impact these two neighboring cell types.
View Article and Find Full Text PDFNat Commun
January 2025
Department of Medicine and Human Oncology & Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA.
The role of the immune system in regulating tissue stem cells remains poorly understood, as does the relationship between immune-mediated tissue damage and regeneration. Graft vs. host disease (GVHD) occurring after allogeneic bone marrow transplantation (allo-BMT) involves immune-mediated damage to the intestinal epithelium and its stem cell compartment.
View Article and Find Full Text PDFFood Chem Toxicol
December 2024
National Engineering Research Center for Bioengineering Drugs and the Technologies, Institute of Translational Medicine, Jiangxi Medical College, Nanchang University, Nanchang 330031, China; School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang, 330031, Jiangxi, China. Electronic address:
The highly toxic aflatoxin B1 (AFB1) is considered one of the primary risk factors for hepatocellular carcinoma, while effective measures after AFB1 exposure remain to be optimized. This study utilized cell-surface-display technique to construct an engineered S. cerevisiae-pYD1-ScFv-AFB1 (S.
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