Background: The impact of uridine diphosphate glucuronosyltransferase 1A7 (UGT1A7) polymorphisms on genetic susceptibility to digestive system cancer has received close attention since the discovery by Guillemette, the polymorphisms of which may alter enzyme activity. To clarify the allele frequency distribution and its association with risk of colorectal cancer, a population-based case-control study was carried out in Chinese population.
Methods: A total of 140 patients with colorectal cancer and 280 cancer-free frequency-matched controls from a follow-up cohort population established in 1989, were enrolled. For the UGT1A7 polymorphisms analysis, polymerase chain reaction (PCR)-based genotyping techniques including semi-nested PCR, allele-specific PCR and PCR-restriction fragment length polymorphism (RFLP) were developed.
Results: The variant allele frequencies in patients and controls were 50.0% and 38.6%, respectively, which were significantly associated with risk of colorectal cancer (odds ratio [OR]: 1.59; 95% confidence interval [CI]: 1.19-2.13). For the variant genotypes analysis, *2/*2 and *3/*3 exhibited a significant association with risk of colorectal cancer (OR: 7.80, 95%CI: 2.66-22.87; OR: 3.47, 95%CI: 1.51-7.97, respectively). Stratification analysis indicated that in previous-current cigarette smoking (cigarette smoking history), current cigarette smoking (current cigarette smoking status), previous-current alcohol drinking (alcohol drinking history) or current alcohol drinking individuals (current alcohol drinking status), the risk developing colorectal cancer increased: OR (95%CI), 2.81 (0.97-8.11), 3.39 (1.19-9.67), 2.89 (0.99-8.46) and 3.14 (1.09-9.09), respectively.
Conclusions: UGT1A7 polymorphisms may have a significant modifying effect on colorectal cancer risk, which may interact with environmental factors, cigarette smoking and alcohol drinking in colorectal carcinogenesis.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/j.1440-1746.2005.04032.x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
TRPV4 as a Novel Regulator of Ferroptosis in Colon Adenocarcinoma: Implications for Prognosis and Therapeutic Targeting.
Dig Dis Sci
January 2025
Ningxia Medical University, Xing Qing Block, Shengli Street No.1160, Yin Chuan City, 750004, Ningxia Province, People's Republic of China.
Background: Colon adenocarcinoma (COAD) is a leading cause of cancer-related mortality worldwide. Transient receptor potential vanilloid 4 (TRPV4), a calcium-permeable non-selective cation channel, has been implicated in various cancers, including COAD. This study investigates the role of TRPV4 in colon adenocarcinoma and elucidates its potential mechanism via the ferroptosis pathway.
View Article and Find Full Text PDFFadA antigen of Fusobacterium nucleatum: implications for ceRNA network in colorectal cancer and adenomatous polyps progression.
Discov Oncol
January 2025
Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Introduction: Colorectal cancer (CRC) is the second most common cause of cancer-related deaths globally. The gut microbiota, along with adenomatous polyps (AP), has emerged as a plausible contributor to CRC progression. This study aimed to scrutinize the impact of the FadA antigen derived from Fusobacterium nucleatum on the expression levels of the ANXA2 ceRNA network and assess its relevance to CRC advancement.
View Article and Find Full Text PDFPreoperative Carcinoembryonic Antigen as a Predictor of 5-Year Survival in Rectal Cancer: Proposing a New Prognostic Cutoff.
J Gastrointest Cancer
January 2025
Colorectal Research Center, Imam Khomeini Hospital complex, Tehran University of Medical Sciences, Keshavarz Blvd, Tehran, Iran.
Purpose: Carcinoembryonic antigen (CEA) is an important prognostic factor for rectal cancer. This study aims to introduce a novel cutoff point for CEA within the normal range to improve prognosis prediction and enhance patient stratification in rectal cancer patients.
Methods: A total of 316 patients with stages I to III rectal cancer who underwent surgical tumor resection were enrolled.
Dihydropyrimidine enzyme activity and its effect on chemotherapy toxicity: importance of genetic testing.
Cancer Chemother Pharmacol
January 2025
Markey Cancer Center, University of Kentucky, Lexington, KY, USA.
Purpose: Patients with partial or complete DPD deficiency have decreased capacity to degrade fluorouracil and are at risk of developing toxicity, which can be even life-threatening.
Case: A 43-year-old man with moderately differentiated rectal adenocarcinoma on capecitabine presented to the emergency department with complaints of nausea, vomiting, diarrhea, weakness, and lower abdominal pain for several days. Laboratory findings include grade 4 neutropenia (ANC 10) and thrombocytopenia (platelets 36,000).
Network Meta-Analysis: Comparison of Endoscopic Dysplasia Detection Technologies in Inflammatory Bowel Disease.
Aliment Pharmacol Ther
January 2025
Division of Gastroenterology and Hepatology, Department of Medicine, McGill University Health Center, Montreal, Quebec, Canada.
Background: Novel colorectal cancer endoscopic surveillance techniques for inflammatory bowel disease (IBD) have recently been developed.
Aims: Compare the efficacy of currently available techniques for dysplasia detection in colonic IBD.
Methods: We conducted a systematic literature search from inception to March 2024 for randomized controlled trials (RCTs) or prospective cohort studies enrolling adults with IBD and having surveillance colonoscopy for dysplasia screening.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!