Estabile PC, Santo MA, de Moura EGH, Kuga R, Caproni P, de Cleva R, Mota FC, Milléo FQ, Artoni RF. SMALL INTESTINAL L CELL DENSITY IN PATIENTS WITH SEVERE OBESITY AFTER ROUX-EN-Y GASTRIC BYPASS.
ARQUIVOS BRASILEIROS DE CIRURGIA DIGESTIVA : ABCD = BRAZILIAN ARCHIVES OF DIGESTIVE SURGERY 2022;
35:e1681. [PMID:
36197372 PMCID:
PMC9529080 DOI:
10.1590/0102-672020220002e1681]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 07/06/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND:
Enteroendocrine L cells can be found in the entire gastrointestinal tract and
their incretins act on glycemic control and metabolic homeostasis. Patients
with severe obesity and type 2 diabetes mellitus may have lower density of L
cells in the proximal intestine.
AIMS:
This study aimed to analyze the density of L cells in the segments of the
small intestine in the late postoperative of Roux-en-Y gastric bypass in
diabetic patients with standardization of 60 cm in both loops, alimentary
and biliopancreatic.
METHODS:
Immunohistochemistry analysis assays were made from intestinal biopsies in
three segments: gastrointestinal anastomosis (GIA= Point A), enteroenteral
anastomosis (EEA= Point B= 60 cm distal to the GIA) and 60 cm distal to the
enteroenteral anastomosis (Point C).
RESULTS:
A higher density of L cells immunostaining the glucagon-1 peptide was
observed in the distal portion (Point C) when compared to the more proximal
portions (Points A and B).
CONCLUSIONS:
The concentration of L cells is higher 60 cm distal to enteroenteral
anastomosis when comparing to proximal segments and may explain the
difference in intestinal lumen sensitization and enterohormonal response
after Roux-en-Y gastric bypass.
Collapse