OBJECTIVE: To evaluate the frequency of diabetes mellitus and glucose intolerance in patients with cystic fibrosis treated at the Pediatric Gastroenterology Service of HC-FMRP-USP. METHODS: A cross-sectional analytical study was conducted on a group of 25 patients with mucoviscidosis who were followed up at HC-FMRP-USP. Oral glucose tolerance tests (OGTT) were performed, with simultaneous determination of glycemia and insulinemia. Areas under the curve were obtained for glycemia (G) and insulinemia (I) and the I/G ratio was calculated and correlated with the duration of clinical manifestation and pancreatic exocrine function. RESULTS: Five patients presented alterations: one was diabetic and four had glucose intolerance and/or hyperinsulinemia. There was a direct correlation between the area under the curve for insulinemia and the duration of mucoviscidosis. A significant inverse correlation was also observed between the area under the curve for insulinemia and I/G ratio, and number of enzyme capsules/kg/day. CONCLUSIONS: The frequency of alterations in glucose homeostasis observed in patients with mucoviscidosis was higher than in the population at large (20% of the total sample and 33% of the group of patients with glycemia and insulinemia on OGTT). Therefore, it is important that glucose tolerance tests be performed systematically in patients with mucoviscidosis so that metabolic abnormalities can be early detected, and proper treatment can be initiated.
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Int J Mol Sci
January 2025
Endocrinology Unit, Department of Internal Medicine and Medical Specialties, School of Medical and Pharmaceutical Sciences, University of Genova, 16132 Genova, Italy.
Acromegaly is a rare endocrine disorder caused by excessive growth hormone (GH) production, due, in the vast majority of cases, to the presence of a GH-secreting pituitary tumour. The chronic elevation of GH and the resulting high circulating levels of insulin-like growth factor-1 (IGF-1) cause the characteristic tissue overgrowth and a number of associated comorbidities, including several metabolic changes, such as glucose intolerance and overt diabetes mellitus (DM). Elevated GH concentrations directly attenuate insulin signalling and stimulate lipolysis, decreasing glucose uptake in peripheral tissues, thus leading to the development of impaired glucose tolerance and DM.
View Article and Find Full Text PDFInt J Environ Res Public Health
January 2025
Organizational Knowledge and Learning, Access Alliance Multicultural Health and Community Services, 340 College Street, Suite 500, Toronto, ON M5T 3A9, Canada.
Diabetes rates are high in Black and some other ethnic communities, often leading to more severe complications. We conducted a study to identify the prevalence and risk of diabetes among African Caribbean Black (ACB) individuals aged 18-39 and to assess the sensitivity of glycated hemoglobin (HbA1c) compared to an oral glucose tolerance test (OGTT) to diagnose diabetes. In this mixed-methods study, maximum variation sampling was used to recruit 272 ACB participants from fourteen African and five Caribbean countries from Toronto.
View Article and Find Full Text PDFMol Metab
January 2025
Québec Heart and Lung Institute Research Center, Université Laval - 2725, Ch. Sainte-Foy, Québec, QC, Canada, G1V 4G5; Department of Medicine, Faculty of Medicine, Université Laval - 1050 Av. de la Médecine, Québec, QC, Canada, G1V 0A6; Institute of Nutrition and Functional Foods, Université Laval - 2440 Bd. Hochelaga, Québec, QC, Canada, G1V 0A6. Electronic address:
Background: Increased fructose consumption contributes to type 2 diabetes (T2D) and metabolic dysfunction-associated steatotic liver disease (MASLD), but the mechanisms are ill-defined. Gut nutrient sensing involves enterohormones like Glucagon-like peptide (Glp)2, which regulates the absorptive capacity of luminal nutrients. While glucose is the primary dietary energy source absorbed in the gut, it is unknown whether excess fructose alters gut glucose sensing to impair blood glucose regulation and liver homeostasis.
View Article and Find Full Text PDFJ Diabetes Complications
January 2025
Department of Medical Biochemistry, Faculty of Medicine, Near East University, Nicosia, 99138 TRNC, Mersin 10, Turkey. Electronic address:
While artificial sweeteners are Generally Regarded as Safe (GRAS), the scientific community remains divided on their safety status. The previous assumption that artificial sweeteners are inert within the body is no longer valid. Artificial sweeteners, known for their high intense sweetness and low or zero calories, are extensively used today in food and beverage products as sugar substitutes and are sometimes recommended for weight management and Type 2 Diabetes Mellitus (T2DM) patients.
View Article and Find Full Text PDFPLoS Biol
January 2025
Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, Japan.
The unique architecture of the liver consists of hepatic lobules, dividing the hepatic features of metabolism into 2 distinct zones, namely the pericentral and periportal zones, the spatial characteristics of which are broadly defined as metabolic zonation. R-spondin3 (Rspo3), a bioactive protein promoting the Wnt signaling pathway, regulates metabolic features especially around hepatic central veins. However, the functional impact of hepatic metabolic zonation, regulated by the Rspo3/Wnt signaling pathway, on whole-body metabolism homeostasis remains poorly understood.
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