Evidence map›Paper›PMID 33230309›Full record

ArticleInternational journal of obesity (2005)2021

Gastric ghrelin cells in obese patients are hyperactive.

Sergio Castorina, Vincenza Barresi, Tonia Luca, Giovanna Privitera, Vincenzo De Geronimo, Giovanni Lezoche, Ilaria Cosentini, Angelica Di Vincenzo, Giorgio Barbatelli, Antonio Giordano and 4 more

Abstract read
PubMed Publisher
In one paragraph

Article in International journal of obesity (2005), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.1field-weighted citation impact, top 26% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Review
  16. GIST and Ghrelin: To Be or Not to Be?Diagnostics (Basel, Switzerland) · 2021
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors at 4 institutions in 2 countries.

Sergio Castorina *Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania, Catania, Italy.
Vincenza Barresi *Department of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, Catania, Italy.
Tonia LucaMediterranean Foundation "G.B. Morgagni", Catania, Italy.
Giovanna PriviteraMediterranean Foundation "G.B. Morgagni", Catania, Italy.
Vincenzo De GeronimoMediterranean Foundation "G.B. Morgagni", Catania, Italy.
Giovanni LezocheDepartment of Experimental and Clinical Medicine, Center of Obesity, Marche Polytechnic University, Ancona, Italy.
Ilaria CosentiniDepartment of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, Catania, Italy.
Angelica Di VincenzoDepartment of Experimental and Clinical Medicine, Center of Obesity, Marche Polytechnic University, Ancona, Italy.
Giorgio BarbatelliDepartment of Experimental and Clinical Medicine, Center of Obesity, Marche Polytechnic University, Ancona, Italy.
Antonio GiordanoDepartment of Experimental and Clinical Medicine, Center of Obesity, Marche Polytechnic University, Ancona, Italy.ORCID http://orcid.org/0000-0003-1401-5855
Marina TausDietetic Unit and Clinical Nutrition, United Hospitals of Ancona, Ancona, Italy.
Albano NicolaiDietetic Unit and Clinical Nutrition, United Hospitals of Ancona, Ancona, Italy.
Daniele Filippo CondorelliDepartment of Biomedical and Biotechnological Sciences, Section of Medical Biochemistry, University of Catania, Catania, Italy.
Saverio CintiMediterranean Foundation "G.B. Morgagni", Catania, Italy. cinti@univpm.it.ORCID http://orcid.org/0000-0003-0362-5017
Marche Polytechnic University · ITUniversity of Catania · ITIstituto di Studi sul Mediterraneo (CNR - ISMed) · ITOspedali Riuniti di Ancona · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

objectivesDistribution and activity of ghrelin cells in the stomach of obese subjects are controversial. SUBJECTS/

methodsWe examined samples from stomachs removed by sleeve gastrectomy in 49 obese subjects (normoglycemic, hyperglycemic and diabetic) and quantified the density of ghrelin/chromogranin endocrine cells by immunohistochemistry. Data were compared with those from 13 lean subjects evaluated by gastroscopy. In 44 cases (11 controls and 33 obese patients) a gene expression analysis of ghrelin and its activating enzyme ghrelin O-acyl transferase (GOAT) was performed. In 21 cases (4 controls and 17 obese patients) the protein levels of unacylated and acylated-ghrelin were measured by ELISA tests. In 18 cases (4 controls and 14 obese patients) the morphology of ghrelin-producing cells was evaluated by electron microscopy.

resultsThe obese group, either considered as total population or divided into subgroups, did not show any significant difference in ghrelin cell density when compared with control subjects. Inter-glandular smooth muscle fibres were increased in obese patients. In line with a positive trend of the desacylated form found by ELISA, Ghrelin and GOAT mRNA expression in obese patients was significantly increased. The unique ghrelin cell ultrastructure was maintained in all obese groups. In the hyperglycemic obese patients, the higher ghrelin expression matched with ultrastructural signs of endocrine hyperactivity, including expanded rough endoplasmic reticulum and reduced density, size and electron-density of endocrine granules. A positive correlation between ghrelin gene expression and glycemic values, body mass index and GOAT was also found. All obese patients with type 2 diabetes recovered from diabetes at follow-up after 5 months with a 16.5% of weight loss.

conclusionsGiven the known inhibitory role on insulin secretion of ghrelin, these results suggest a possible role for gastric ghrelin overproduction in the complex architecture that takes part in the pathogenesis of type 2 diabetes.

Indexed as

GhrelinObesityStomachAdultCase-Control StudiesCells, CulturedDiabetes Mellitus, Type 2FemaleGastrectomyHumansMaleMiddle AgedWeight LossGhrelin

Identifiers

PMID33230309
OpenAlexW3110603928

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.