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Prognostic value of NM23 in patients with gastric cancer: A systematic review and meta-analysis


1 Department of Digestive, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, PR China
2 Department of General Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, PR China
3 Department of Radiotherapy and Oncology, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, PR China

Correspondence Address:
Bing-fang Wang,
Department of Digestive, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan Jiangsu, 215300
PR China
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Source of Support: None, Conflict of Interest: None

Aim of Study: NM23, as a possible biomarker of prognosis in malignant tumors, has generated remarkable interest in this critical period of the high morbidity and mortality of malignancies. Thus, we launched this meta-analysis to investigate the predictive value of NM23 expression in patients with gastric cancer. Materials and Methods: We searched PubMed, Embase, and Web of Science for relevant articles. The pooled odds ratios (ORs) and corresponding 95% confidence interval (CI) were calculated to evaluate the prognostic value of NM23 expression in patients with gastric cancer and the association between NM23 expression and clinicopathological factors. We also performed subgroup analyses to find the source of heterogeneity. Results: Exactly, 2674 patients were pooled from 19 available studies in total. The incorporative OR combined by 11 studies with overall survival (OS) showed no significance (OR = 0.90, 95% CI: 0.51–1.58, P = 0.71). Although we failed to find any significance in N status and tumor node metastasis (TNM) staging (P = 0.23 and P = 0.74, respectively), elevated NM23 expression was related to well tumor differentiation (OR = 0.62, 95% CI: 0.41–0.95, P = 0.03). However, in the subgroup analyses, we could not find any potential source of heterogeneity. Conclusion: The results showed that statistically significant association was found between NM23 expression and the tumor differentiation of patients with gastric cancer, but no significance was found in OS, N status, and TNM staging. More and further researches should be conducted to reveal the prognostic value of NM23.


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    -  Wang Qh
    -  Han W
    -  Chen Mb
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