A case control study was undertaken to investigate the association of polymorphisms in cytochrome P4501A1 (CYP1A1) with squamous cell carcinoma of head and neck (HNSCC) in North Indian population. The variant genotypes of CYP1A1*2A and CYP1A1*2C were found to be overrepresented in cases when compared to controls. The HNSCC risk also increased several folds in cases with combination of variant genotypes of CYP1A1*2A or CYP1A1*2C with null genotype of glutathione-S-transferase M1 (GSTM1), a phase II enzyme, particularly in cases who were tobacco users (smokers and tobacco chewers), demonstrating the role of gene-gene and gene-environment interactions in the development of HNSCC.

Download full-text PDF

Source
http://dx.doi.org/10.1080/07357900902849657DOI Listing

Publication Analysis

Top Keywords

cytochrome p4501a1
8
head neck
8
variant genotypes
8
genotypes cyp1a1*2a
8
cyp1a1*2a cyp1a1*2c
8
polymorphism cytochrome
4
p4501a1 associated
4
associated head
4
neck cancer
4
cancer risk
4

Similar Publications

Fusarium mycotoxins often co-occur in broiler feed, and their presence negatively impacts health even at subclinical concentrations, so there is a need to identify the concentrations of these toxins that do not adversely affect chickens health and performance. The study was conducted to evaluate the least toxic effects of combined mycotoxins fumonisins (FUM), deoxynivalenol (DON), and zearalenone (ZEA) on the production performance, immune response, intestinal morphology, and nutrient digestibility of broiler chickens. A total of 960 one-day-old broilers were distributed into eight dietary treatments: T1 (Control); T2: 33.

View Article and Find Full Text PDF

Evidence that cadmium aggravate the toxicity of triphenyl phosphate in aquatic sediments to Corbicula fluminea.

J Hazard Mater

December 2024

Nanjing Hydraulic Research Institute, Nanjing 210029, China; Key Laboratory of Taihu Basin Water Resources Management, Ministry of Water Resources, Wuxi 214131, China.

Article Synopsis
  • The study investigates the combined toxicity of triphenyl phosphate (TPhP) and cadmium (Cd) on the benthic organism Corbicula fluminea, highlighting significant biotoxicity concerns due to their co-occurrence in sediments.
  • Results indicated that Cd increased TPhP accumulation in C. fluminea, leading to cell membrane damage and severe histological changes, as well as promoting the biotransformation of TPhP via enhanced cytochrome P4501A1 (CYP1A1) activity.
  • Metabolic pathway analysis showed disruptions in critical metabolic processes, which weakened the organism's ability to repair damage and increased the risk of cell death, underscoring the ecological risks of TPh
View Article and Find Full Text PDF

A Natural Chalcone Cardamonin Inhibited Transformation of Aryl Hydrocarbon Receptor Through Binding to the Receptor Competitively.

Mol Nutr Food Res

September 2024

Department of Agrobioscience, Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, 657-8501, Japan.

Scope: Chalcones are widely present in most plants and have various health beneficial functions. This study investigates the suppressive effect of 13 natural and synthetic chalcones on transformation of aryl hydrocarbon receptor (AhR) induced by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) and 3-methylcholanthrene (3-MC) in a cell-free system, Hepa-1c1c7 cells, and liver of ICR mice.

Methods And Results: In the cell-free system, cardamonin dose-dependently inhibits AhR transformation.

View Article and Find Full Text PDF

The cytochrome P4501A1 (CYP1A1) inhibitor bergamottin enhances host tolerance to multidrug-resistant Vibrio vulnificus infection.

Chin J Traumatol

September 2024

The College of Emergency and Trauma, Hainan Medical University, Haikou, 571199, China; The First Research Department, State Key Laboratory of Trauma and Chemical Poisoning, Army Medical Center (Daping Hospital), Army Medical University, Chongqing, 400042, China. Electronic address:

Purpose: Vibrio vulnificus (V. Vulnificus) infection is characterized by rapid onset, aggressive progression, and challenging treatment. Bacterial resistance poses a significant challenge for clinical anti-infection treatment and is thus the subject of research.

View Article and Find Full Text PDF

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!