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Toxicokinetics plays a crucial role in the health risk assessments of xenobiotics. Classical compartmental models are limited in their ability to determine chemical concentrations in specific organs or tissues, particularly target organs or tissues, and their limited interspecific and exposure route extrapolation hinders satisfactory health risk assessment. In contrast, physiologically based toxicokinetic (PBTK) models quantitatively describe the absorption, distribution, metabolism, and excretion of chemicals across various exposure routes and doses in organisms, establishing correlations with toxic effects. Consequently, PBTK models serve as potent tools for extrapolation and provide a theoretical foundation for health risk assessment and management. This review outlines the construction and application of PBTK models in health risk assessment while analyzing their limitations and future perspectives.
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http://dx.doi.org/10.3390/toxics11100874 | DOI Listing |
J Eval Clin Pract
September 2025
Cochrane Taiwan, Taipei Medical University, Taipei, Taiwan.
Background: Chest radiography is often performed preoperatively as a common diagnostic tool. However, chest radiography carries the risk of radiation exposure. Given the uncertainty surrounding the utility of preoperative chest radiographs, physicians require systematically developed recommendations.
View Article and Find Full Text PDFPharmacotherapy
September 2025
Department of Biomedical Informatics, School of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Background: Omeprazole, a widely used proton pump inhibitor, has been associated with rare but serious adverse events such as myopathy. Previous research suggests that concurrent use of omeprazole with fluconazole, a potent cytochrome P450 (CYP) 2C19/3A4 inhibitor, may increase the risk of myopathy. However, the contribution of genetic polymorphisms in CYP enzymes remains unclear.
View Article and Find Full Text PDFGenet Med
September 2025
Division of Medical Genetics, University of Washington School of Medicine.
Purpose: The fourth phase of the Electronic Medical Records and Genome Network (eMERGE4) is testing the return of 10 polygenic risk scores (PRS) across multiple clinics. Understanding the perspectives of health-system leaders and frontline clinicians can inform plans for implementation of PRS.
Methods: Fifteen health-system leaders and 20 primary care providers (PCPs) took part in semi-structured interviews.
J Magn Reson Imaging
September 2025
Department of Neurology, Dell Medical School, University of Texas at Austin, Austin, Texas, USA.
Background: Cerebrovascular reactivity reflects changes in cerebral blood flow in response to an acute stimulus and is reflective of the brain's ability to match blood flow to demand. Functional MRI with a breath-hold task can be used to elicit this vasoactive response, but data validity hinges on subject compliance. Determining breath-hold compliance often requires external monitoring equipment.
View Article and Find Full Text PDFMult Scler
September 2025
Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA.
Background: Tumefactive demyelination (TD) is a rare variant of multiple sclerosis (MS) characterized by tumor-like lesions that often require aggressive management. Genome-wide association studies (GWAS) identified variants associated with MS; similar analyses in TD are lacking.
Objective: A GWAS was performed to identify variants associated with TD.