X-Ray Irradiation Induces Oxidative Stress and Upregulates Intestinal Nrf2-Mrp2 Pathway, Leading to Decreased Intestinal Absorption of Valsartan.

ABSTRACT: Background: It has been documented that radiation can influence the pharmacokinetics of chemotherapy drugs, yet the underlying mechanisms remain poorly understood. In clinical practice, a considerable number of cancer patients undergo radiotherapy, and those with comorbid hypertension required antihypertensive drugs, including valsartan, an angiotensin II receptor blocker. However, there is no research investigating whether radiotherapy poses a risk of altering the pharmacokinetics. Objective: The objective of this study is to investigate the impact of X-ray abdominal irradiation on the pharmacokinetics of valsartan and to preliminarily elucidate the underlying mechanism. Methods: The pharmacokinetics of valsartan after X-ray irradiation was investigated in rats and in

SUBMITTER: Teng Y 

PROVIDER: S-EPMC11860126 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature