Document Detail


Serum ghrelin as a marker of atrophic body gastritis in patients with parietal cell antibodies.
MedLine Citation:
PMID:  17711921     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
AIM: Autoimmune gastritis is frequently associated with autoimmune thyroiditis and other organ-specific autoimmune diseases, and may lead to atrophic body gastritis (ABG). We studied the diagnostic use of the measurement of serum ghrelin compared with other markers of gastric damage in predicting the presence of ABG in patients with autoimmune gastritis. METHODS: We studied 233 patients with autoimmune gastritis and 211 control subjects. All patients and control subjects were screened for circulating parietal cell antibodies (PCAs) and were tested for serum ghrelin, gastrin, pepsinogen I and II, and anti-Helicobacter pylori antibody levels. A total of 52 patients and 28 control subjects underwent a gastric endoscopy. RESULTS: In PCA/positive patients, mean (+/-sd) serum ghrelin levels were significantly lower (238 +/- 107 pmol/liter), and mean (+/-sd) serum gastrin levels were significantly higher (81.2 +/- 128.3 ng/ml), with respect to PCA/negative patients (282 +/- 104 pmol/liter and 20.7 +/- 13.3 ng/ml, respectively; P < 0.0001). Serum ghrelin and gastrin levels were inversely correlated (P = 0.004). A total of 40 patients had ABG documented by the gastric biopsy (90% in PCA/positive patients and 10% in PCA/negative patients). The receiver operating characteristic curve analysis revealed that a cutoff value for serum ghrelin of 188 pmol/liter was associated with the highest sensitivity and specificity (97.3 and 100%, respectively) in detecting gastric atrophy and was superior to gastrin (P = 0.012), PCA (P = 0.002), and the pepsinogen I/II ratio (P = 0.016) measurements. CONCLUSIONS: Our study demonstrates that ghrelin secretion is negatively affected by autoimmune gastritis, and its serum level represents the most sensitive and specific noninvasive marker for selecting patients at high risk for ABG.
Authors:
Serenella Checchi; Annalisa Montanaro; Letizia Pasqui; Cristina Ciuoli; Gabriele Cevenini; Fausta Sestini; Carla Fioravanti; Furio Pacini
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-08-21
Journal Detail:
Title:  The Journal of clinical endocrinology and metabolism     Volume:  92     ISSN:  0021-972X     ISO Abbreviation:  J. Clin. Endocrinol. Metab.     Publication Date:  2007 Nov 
Date Detail:
Created Date:  2007-11-08     Completed Date:  2008-01-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375362     Medline TA:  J Clin Endocrinol Metab     Country:  United States    
Other Details:
Languages:  eng     Pagination:  4346-51     Citation Subset:  AIM; IM    
Affiliation:
Section of Endocrinology and Metabolism, Department of Internal Medicine, Endocrinology and Metabolism and Biochemistry, University of Siena, Viale Bracci 1, 53100 Siena, Italy.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aged, 80 and over
Autoantibodies / analysis*
Biological Markers
Biopsy
Female
Gastric Mucosa / pathology
Gastrins / blood
Gastritis, Atrophic / blood*,  pathology
Gastroscopy
Ghrelin / blood*
Humans
Male
Middle Aged
Parietal Cells, Gastric / immunology*
Pepsinogen A / blood
Predictive Value of Tests
ROC Curve
Thyroid Function Tests
Chemical
Reg. No./Substance:
0/Autoantibodies; 0/Biological Markers; 0/Gastrins; 0/Ghrelin; 9001-10-9/Pepsinogen A

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