Abstract
Obesity is one of the risk factors for gallstone disease (GD). Leptin hormone is known to regulate central obesity. Thus, hyperleptinemia may also be involved in gallstone disease pathogenesis. In the present study, a meta-analysis was performed to compare the leptin levels in GD and controls. The authors reviewed studies till April 12, 2021, which reported the serum leptin levels in gallstone patients and healthy controls. The online search involved ScienceDirect and PubMed databases. The data obtained from the research articles was scrutinized for selection criteria. Only those articles which fulfilled the inclusion criteria were subjected to meta-analysis. Of 2047 articles, a total of eight studies met the inclusion and exclusion criteria and were considered for the meta-analysis. After meta-analysis, it was observed that the patients with GD had high leptin levels as compared to healthy controls. A significant level of heterogeneity was observed in the included studies (I2 = 89%, p < 0.01). There was no publication bias. High leptin levels might be involved in GD pathogenesis.
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