CORRELATION OF LEPTIN AND ADIPONECTIN RECEPTOR EXPRESSION WITH CLINICOPATHOLOGICAL PARAMETERS IN COLORECTAL CARCINOMA - A CROSS-SECTIONAL PROSPECTIVE STUDY.
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Abstract
Background: Colorectal carcinoma (CRC) is one of the common carcinomas with a rising incidence of metastasis due to its advanced stage of presentation. The existing biomarkers such as CEA (Carcinoembryonic antigen) etc., for prognosis, have low sensitivity and specificity. Hence a need for a newer definitive biomarker. Obesity is the leading cause of CRC. Leptin and adiponectin secreted by adipose tissue have been studied as potential biomarkers in the field of CRC. The present study helps to understand the association of leptin and adiponectin receptors with clinicopathological parameters.
Objective: To correlate the various clinicopathological parameters with the tissue expression of leptin and adiponectin receptors in CRC.
Methods: It is a cross-sectional prospective study conducted at a tertiary care hospital. Formalin fixed paraffin blocks of all radical resection CRC cases were collected and immunohistochemistry (IHC)was carried out on tumor tissue for leptin and adiponectin receptor. Tumor characteristics and clinical parameters were collected from the hospital medical records. Pearson's correlation coefficient test was used.
Results: Immunohistochemistry was performed on 60 cases of CRC. Significant positive correlation of leptin was observed with size, lymph node metastasis, advanced stage, and grade of tumor (P<0.05). A significant correlation between adiponectin receptor and CRC was observed concerning age, stage, lymph node metastasis, distant metastasis and grade of tumor.
Conclusion: Positive expression of leptin and negative expression of adiponectin receptors in CRC helps to predict the risk of metastasis.
期刊介绍：
The journal Arquivos de Gastroenterologia (Archives of Gastroenterology), a quarterly journal, is the Official Publication of the Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologia IBEPEGE (Brazilian Institute for Studies and Research in Gastroenterology), Colégio Brasileiro de Cirurgia Digestiva - CBCD (Brazilian College of Digestive Surgery) and of the Sociedade Brasileira de Motilidade Digestiva - SBMD (Brazilian Digestive Motility Society). It is dedicated to the publishing of scientific papers by national and foreign researchers who are in agreement with the aim of the journal as well as with its editorial policies.
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