Association of N-acelyltransferase-2 Phenotype and CYP1A2 Activity with Cholangiocarcinoma in Thailand

Authors

  • Veerapol Kukongviriyapan Department of Pharmacology,Cholangiocarcinoma Research Group, Faculty of Medicine,Khon Kaen University, 40002 Thailand
  • Jareerat Aiemsa-ard Department of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Medicine, Khon Koen University, 40002 Thailand
  • Benjamart Warasiha Faculty of Pharmacy and Health Science, Mahasarakham University, Thailand.
  • Wichittra Tassaneyakul Department of Pharmacology, Cholangiocarcinoma Research Group, Faculty of Medicine,Khon Kaen University, 40002 Thailand
  • Vajarabhongsa Bhudhisawasdi Department of Surgery, Cholangiocarcinoma Research Group, Faculty of Medicine, Khon Kaen University, 40002 Thailand.
  • O-Tur Saeseow Department of Surgery, Cholangiocarcinoma Research Group, Faculty of Medicine, Khon Kaen University, 40002 Thailand.
  • Bandit Thinkhamrop Department of Biostatistics and Demography, Faculty of Public Health, Khon Kaen University, 40002 Thailand.

Abstract

Background/Aims: Arylamine N-acetyltransferase-2 and cytochrome P450 1A2 have been implicated in the carcinogen activation and conferred cancer susceptibility. Present study was set to determine whether acetylation phenotype and P450 1A2 were associated with cholangiocarcinoma.

Materials and Methods: Ninety-six unrelated Thais were recruited for the study: 52 healthy controls and 44 cholangiocarcinoma patients. The acetylation phenotype was assessed and P450 1A2 activity was determined in vivo using the caffeine metabolic ratio (CMR) after oral administration of a cup of coffee.

Results: The caffeine metabolic ratio in the control and patient groups varied widely and the frequency distribution was apparently non-normal. The CMR value was higher in the controls particularly in non-smokers. Taken individually rapid acetylator status was not significantly associated with cholangiocarcinoma, however the joint effect of acetylation and P450 1A2 activity resulted in a presented risk of cancer, odds ratio=3.5 (95% confident interval, 1.0 to 12.1)

Conclusions: Arylamine N-acetyltransferase-2 and cytochrome P450 1A2 may play a role in presenting susceptibility to cholangiocarcinoma in Thai population.

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Published

2004-06-30

How to Cite

1.
Kukongviriyapan V, Aiemsa-ard J, Warasiha B, Tassaneyakul W, Bhudhisawasdi V, Saeseow O-T, Thinkhamrop B. Association of N-acelyltransferase-2 Phenotype and CYP1A2 Activity with Cholangiocarcinoma in Thailand. Thai J Surg [Internet]. 2004 Jun. 30 [cited 2024 Dec. 23];25(2):39-46. Available from: https://he02.tci-thaijo.org/index.php/ThaiJSurg/article/view/242415

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