Wang Y, Zhang C, Yu J, Zhang Q, Wang Y, Xia Y, Dong J. Circulating ghrelin levels in patients with gastric cancer: a systematic review and meta-analysis.
Front Oncol 2023;
13:1255112. [PMID:
37790757 PMCID:
PMC10542895 DOI:
10.3389/fonc.2023.1255112]
[Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 08/24/2023] [Indexed: 10/05/2023] Open
Abstract
Background
Ghrelin plays a critical role in regulating energy metabolism and homeostasis. The association between circulating ghrelin levels and gastric cancer has not been systematically analyzed.
Objective
This work explored the association between circulating ghrelin levels and gastric cancer.
Methods
The literature search for relevant articles published until November 2022 was performed using PubMed, Cochrane Library, EMBASE, and Web of Science with the keywords "ghrelin" and "gastric cancer". Standardized mean differences (SMD) with 95% confidence intervals were used to measure the effectiveness. We assessed pooled data by use of a random-effects model.
Results
Of 5,302 identified studies, nine were included (N=3,196 participants). Circulating ghrelin levels were lower in gastric cancer patients (SMD=-0.255, 95%CI: -0.528 to 0.017, P < 0.00001), but with high heterogeneity (I2 = 88.8%).
Conclusion
The circulating ghrelin levels in patients with gastric cancer were lower than in controls. However, there was heterogeneity among results; therefore, studies with larger sample sizes are recommended.
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