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Gaceta médica de México

Print version ISSN 0016-3813


MENDEZ-SANCHEZ, Nahum; PONCIANO-RODRIGUEZ, Guadalupe; CHAVEZ-TAPIA, Norberto C  and  URIBE, Misael. Leptine participation in the development of liver steatosis and biliar lithiasis. Gac. Méd. Méx [online]. 2005, vol.141, n.6, pp.495-499. ISSN 0016-3813.

Obesity increases significantly the risk of developing several common gastrointestinal diseases such as gallstone disease (GD) and hepatic steatosis (HS). Elsewhere we have shown a relationship between HDL cholesterol, cholesterol saturation index, and leptin in obese patients loosing weight. Furthermore, leptin plays an important role facilitating HS and possibly in the associated inflammatory process. The aim of this study was to investigate the relationship between GD and HS. The sample was comprised by patients attending the unit for check up. Subjects with visible stones or HS by ultrasound (cases) were compared with healthy controls. Demographic and body mass index (BMI) were recorded. Plasma leptin, insulin and serum lipids and lipoproteins levels were measured by standard methods. A total of 317 subjects were included in this study. They were divided in four groups as follows: GD (n=100), HS (n=84), GD + HS (n=33) and controls (n=100). The control group was significantly older (GD, 52.6 ± 11.6; HS, 49.8 ±11.1; GD +HS, 51.6 ±10.5; 57.1 ± 7.4), p< 0.05. BMI was higher in the HS groups (28.7 ± 2.8) and GD +EH (29.0 ± 3.8) than in the GD (27.4 ± 4.3) and control (27.0 ± 3.1) group, p< 0.05. The GD group displayed the highest leptin levels (13.7 241 8.1), P < 0.05, whereas insulin levels were similar in all groups. Since GD and HS subjects have high plasma leptin levels compared with controls, our results suggest that leptin plays an important role in the pathophysiology of GD and HS.

Keywords : Gallstone; leptin; insulin; obesity.

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