User profiles for D. Keith Williams

David Keith Williams

University of Arkansas for Medical Sciences
Verified email at uams.edu
Cited by 11952

Cytochrome P450 phenotypic ratios for predicting herb‐drug interactions in humans

…, SF Gardner, MA Hubbard, DK Williams… - Clinical …, 2002 - Wiley Online Library
Objectives Phytochemical‐mediated modulation of cytochrome P450 (CYP) activity may
underlie many herb‐drug interactions. Single‐time point phenotypic metabolic ratios were used …

In vivo effects of goldenseal, kava kava, black cohosh, and valerian on human cytochrome P450 1A2, 2D6, 2E1, and 3A4/5 phenotypes

…, SF Gardner, MA Hubbard, DK Williams… - Clinical …, 2005 - Wiley Online Library
Objectives Phytochemical‐mediated modulation of cytochrome P450 (CYP) activity may
underlie many herb‐drug interactions. Single‐time point phenotypic metabolic ratios were used …

Clinical assessment of effects of botanical supplementation on cytochrome P450 phenotypes in the elderly: St John's wort, garlic oil, Panax ginseng and Ginkgo biloba

BJ Gurley, SF Gardner, MA Hubbard, DK Williams… - Drugs & aging, 2005 - Springer
Objectives Elderly patients are more likely to ingest prescription medications concurrently
with botanical supplements, and may therefore be vulnerable to herb-drug interactions. …

In vivo assessment of botanical supplementation on human cytochrome P450 phenotypes: Citrus aurantium, Echinacea purpurea, milk thistle, and saw palmetto

…, SF Gardner, MA Hubbard, DK Williams… - Clinical …, 2004 - Wiley Online Library
Objectives Phytochemical‐mediated modulation of cytochrome P450 (CYP) activity may
underlie many herb‐drug interactions. Single‐time point phenotypic metabolic ratios were used …

Clinical assessment of CYP2D6‐mediated herb–drug interactions in humans: Effects of milk thistle, black cohosh, goldenseal, kava kava, St. John's wort, and …

…, A Swain, MA Hubbard, DK Williams… - Molecular nutrition & …, 2008 - Wiley Online Library
Cytochrome P450 2D6 (CYP2D6), an important CYP isoform with regard to drug–drug
interactions, accounts for the metabolism of ∼︁30% of all medications. To date, few studies have …

[HTML][HTML] The effects of hypercapnia on cerebral autoregulation in ventilated very low birth weight infants

JR Kaiser, CH Gauss, DK Williams - Pediatric research, 2005 - nature.com
Permissive hypercapnia, a strategy allowing high Paco 2, is widely used by neonatologists
to minimize lung damage in ventilated very low birth weight (VLBW) infants. While …

Gauging the clinical significance of P‐glycoprotein‐mediated herb‐drug interactions: comparative effects of St. John's wort, Echinacea, clarithromycin, and rifampin on …

BJ Gurley, A Swain, DK Williams… - Molecular nutrition & …, 2008 - Wiley Online Library
Concomitant administration of botanical supplements with drugs that are P‐glycoprotein (P‐gp)
substrates may produce clinically significant herb‐drug interactions. This study …

Cost-effectiveness analysis of a rural telemedicine collaborative care intervention for depression

…, MJ Edlund, DK Williams - Archives of general …, 2010 - jamanetwork.com
Context Collaborative care interventions for depression in primary care settings are clinically
beneficial and cost-effective. Most prior studies were conducted in urban settings. Objective …

Pancreatitis: prevalence and risk factors among male veterans in a detoxification program

D Yadav, ML Eigenbrodt, MJ Briggs, DK Williams… - Pancreas, 2007 - journals.lww.com
Objectives: To determine the prevalence of pancreatitis and associated risk factors among
heavy-drinking veterans. Methods: At a large Veterans Administration Outpatient …

Effect of milk thistle (Silybum marianum) and black cohosh (Cimicifuga racemosa) supplementation on digoxin pharmacokinetics in humans

BJ Gurley, GW Barone, DK Williams, J Carrier… - Drug metabolism and …, 2006 - ASPET
Phytochemical-mediated modulation of P-glycoprotein (P-gp) and other drug transporters
may underlie many herb-drug interactions. Serial serum concentration-time profiles of the P-gp …