Hypoglycemia and the gut microbiome

• Grant number: 18/22111-2
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: March 04, 2019
• End date: March 03, 2020
• Field of knowledge: Health Sciences - Medicine - Medical Clinics
• Principal Investigator: Maria Cristina Foss de Freitas
• Grantee: Rafael Ferraz Bannitz
• Supervisor: Mary Elizabeth Patti
• Host Institution: Faculdade de Medicina de Ribeirão Preto (FMRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil
• Institution abroad: Harvard University, Boston, United States
• Associated to the scholarship: 15/12133-0 - Study of metabolic and molecular alterations involved in caloric restriction and hypoproteic diet in humans, BP.DR

Abstract

Obesity and its associated complications have become a public health problem. One ofthe ways to fight obesity is bariatric surgery. Bariatric surgery has brought benefits to individuals'health, such as weight loss and decreased insulin resistance. However a severe bariatriccomplication is hyperinsulinemic hypoglycemia. Although more commonly reported with gastricbypass in Y-roux, hypoglycemia was also observed in vertical gastrectomy, a procedureincreasingly employed in the USA. The prevalence of the symptom of hypoglycemia is reported in30% of the patients, in some cases until hospitalization was necessary. Metabolic studies show thatpatients with hypoglycemia after gastric surgery reveal profound changes in glycemic andhormonal patterns due to altered gastric anatomy. In addition recent studies have shown that theanalysis of the composition of the intestinal microbiome can be used to predict the glycemicresponse to food intake. Thus, the objective of this study is to evaluate individuals who arecurrently experiencing symptoms of hypoglycemia and to determine whether the microbiomecomposition patterns are linked to glycemic pattern. (AU)

Scientific publications

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

FERRAZ-BANNITZ, RAFAEL; OZTURK, BERKCAN; CUMMINGS, CAMERON; EFTHYMIOU, VISSARION; QUEROL, PILAR CASANOVA; POULOS, LINDSAY; WANG, HANNA; NAVARRETE, VALERIE; SAEED, HAMAYLE; MULLA, CHRISTOPHER M.; et al. Postprandial metabolomics analysis reveals disordered serotonin metabolism in post-bariatric hypoglycemia. Journal of Clinical Investigation, v. 134, n. 21, p. 16-pg., 2024-11-01. (18/22111-2)