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Appetitive Associative Olfactory Learning in Drosophila Larvae
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[Association of

Yanqi Jiang1, Yalan Yang1, Ting Yang1

  • 1Department of Epidemiology and Biostatistics, West China School of Public Health, Sichuan University, Chengdu 610041, China.

Zhejiang Da Xue Xue Bao. Yi Xue Ban = Journal of Zhejiang University. Medical Sciences
|September 19, 2018
PubMed
Summary
This summary is machine-generated.

Genetic variations in UCP2 rs659366 are linked to colorectal cancer patient outcomes after surgery. Specifically, the AA genotype and allele A increase the risk of poorer survival rates in these patients.

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A Pathway Association Study Tool for GWAS Analyses of Metabolic Pathway Information
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Area of Science:

  • Oncology
  • Genetics
  • Molecular Biology

Background:

  • Colorectal cancer (CRC) is a significant global health concern.
  • Identifying genetic factors influencing patient prognosis post-surgery is crucial for personalized treatment strategies.
  • Uncoupling protein 2 (UCP2) plays a role in cellular metabolism and has been implicated in various cancers.

Purpose of the Study:

  • To investigate the association between the UCP2 rs659366 single nucleotide polymorphism (SNP) and the clinical outcomes of patients undergoing surgery for colorectal cancer.
  • To determine if specific genotypes of UCP2 rs659366 correlate with survival rates and prognosis in CRC patients.

Main Methods:

  • A cohort of 501 primary colorectal cancer patients who underwent surgery was studied.
  • Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to genotype the UCP2 rs659366 polymorphism.
  • Cox proportional hazard models and log-rank tests were employed to analyze the relationship between genotypes and patient outcomes, adjusting for clinical factors.

Main Results:

  • Tumor site, TNM stage, vascular invasion, perineural invasion, and preoperative CEA levels were significantly associated with patient outcomes (P<0.05 or P<0.01).
  • Patients with the AA genotype had a lower overall survival rate (62.7%) compared to GG (75.5%).
  • The AA genotype (HR=1.823), GA+AA genotypes (HR=1.498), and allele A (HR=1.787) were associated with increased risks for poorer outcomes, indicating a negative prognostic impact.

Conclusions:

  • The UCP2 rs659366 polymorphism is significantly associated with the clinical outcomes of patients with colorectal cancer.
  • Specific genotypes, particularly the AA genotype and the presence of allele A, are linked to poorer survival and increased risk in CRC patients post-surgery.
  • These findings suggest that UCP2 rs659366 may serve as a potential genetic biomarker for predicting prognosis in colorectal cancer.