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Quantitative and Topographic Analysis by Immunohistochemical Expression of Ghrelin Gastric Cells in Patients with Morbid Obesity

Authors Parada D D, Peña G KB, Vives M, Molina A, Mayayo E, Riu F, Sabench F, Del Castillo D

Received 1 May 2020

Accepted for publication 18 June 2020

Published 18 August 2020 Volume 2020:13 Pages 2855—2864

DOI https://doi.org/10.2147/DMSO.S260483

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Professor Ming-Hui Zou


David Parada D,1 Karla B Peña G,1 Margarida Vives,2 Alicia Molina,2 Emilio Mayayo,3 Frances Riu,1 Fàtima Sabench,2 Daniel Del Castillo2

1Pathology Service, University Hospital of Sant Joan. Faculty of Medicine, IISPV, “Rovira i Virgili” University, Reus, Tarragona, Spain; 2Surgery Service, University Hospital of Sant Joan, Faculty of Medicine, IISPV, “Rovira i Virgili” University, Reus, Tarragona, Spain; 3Pathology Service, University Hospital of Joan XXIII, Faculty of Medicine, IISPV, “Rovira i Virgili” University, Reus, Tarragona, Spain

Correspondence: Daniel Del Castillo
Head Surgery Department, Hospital Universitari Sant Joan, Facultat de Medicina, U.R.V., Reus, Spain
Email fatima.sabench@urv.cat

Purpose: The cellular distribution of ghrelin positive cells is not well defined. The aim of the study is to quantify and determine the distribution of ghrelin cells in gastric mucosa in patients with morbid obesity and relate this finding to gender, comorbidities, gastritis, and plasmatic levels of acyl and desacylghrelin before and after laparoscopic sleeve gastrectomy.
Patient and Methods: We performed a study on 61 patients with BMI≥ 50 kg/m2 operated by laparoscopic sleeve gastrectomy. Three gastric regions were analyzed by histopathology and immunohistology. Blood sample was taken before surgery, and at 6 and 12 months post-surgery, to study the plasma levels of ghrelin isoforms.
Results: Ghrelin cells are present in all regions of the gastric mucosa, with a greater number in the body and the fundus. Difference was found in the antrum between male and female patients (p=0.018). Patients with arterial hypertension also showed a lower level of cells in antrum (p< 0.05). Acylghrelin levels after surgery were significantly lower (32.83+5.6 pg/mL to 10.09+11.8 pg/mL, p< 0.05). Values of desacylghrelin tended to decrease but no significant variation was observed (207.4+39.3 pg/mL to 188.84+52.3 pg/mL).
Conclusion: Our patients show ghrelin cells in all areas of the stomach. Gender, comorbidities, and gastritis are determinant on gastric ghrelin-producing cells distribution.

Keywords: ghrelin, cells, obesity, gastric, laparoscopic surgery

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