The disposition of venlafaxine enantiomers in dogs, rats, and humans receiving venlafaxine

C Paul Wang, SR Howell, J Scatina, SF Sisenwine - Chirality, 1992 - Wiley Online Library
A stereospecific high‐performance liquid chromatographic (HPLC) method was developed
for the quantitation of the enantiomers of venlafaxine, an antidepressant, in dog, rat, and …

Effects of retinoid treatment of rats on hepatic microsomal metabolism and cytochromes P450: Correlation between retinoic acid receptor/retinoid X receptor selectivity …

SR Howell, MA Shirley, EH Ulm - Drug metabolism and disposition, 1998 - ASPET
Retinoids are compounds that bind to and activate one or more retinoid receptors to elicit
various physiological responses. There are two families of retinoid receptors, ie retinoic acid …

Bexarotene metabolism in rat, dog, and human, synthesis of oxidative metabolites, and in vitro activity at retinoid receptors

SR Howell, MA Shirley, TA Grese, DA Neel… - Drug metabolism and …, 2001 - ASPET
The metabolism of bexarotene, a rexinoid recently approved in the United States for treatment
of cutaneous T-cell lymphoma, was studied using liver slices from untreated rats and dogs…

[HTML][HTML] Retinoid X Receptor Acts as a Hormone Receptor in Vivo to Induce a Key Metabolic Enzyme for 1, 25-Dihydroxyvitamin D3 (∗)

EA Allegretto, N Shevde, A Zou, SR Howell… - Journal of Biological …, 1995 - ASBMB
We demonstrate here that RNA levels of 25-hydroxyvitamin D 3 -24-hydroxylase (24-(OH)ase),
a key catabolic enzyme for 1,25-dihydroxyvitamin D 3 , are increased by a highly …

Oxidative metabolism of a rexinoid and rapid phase II metabolite identification by mass spectrometry

MA Shirley, P Wheelan, SR Howell… - Drug metabolism and …, 1997 - ASPET
LGD1069 (Targretin), a retinoid “X” receptor-selective ligand, or rexinoid, is in clinical trials
for treating cancer. Biologically-active oxidized LGD1069 metabolites have been observed in …

Ciclesonide disposition and metabolism: pharmacokinetics, metabolism, and excretion in the mouse, rat, rabbit, and dog

Z Guo, Z Gu, SR Howell, K Chen… - American journal of …, 2006 - journals.lww.com
The pharmacokinetics, metabolism, and excretion of ciclesonide, a novel and effective inhaled
glucocorticoid for the treatment of asthma, were investigated after intravenous and oral …

Circadian variation of hepatic UDP-glucuronic acid and the glucuronidation of xenobiotics in mice

SR Howell, C Klaassen - Toxicology letters, 1991 - Elsevier
A circadian cycle in hepatic UDP-glucuronic acid (UDP-GA) concentration was observed in
mice that was essentially the reverse of those seen for hepatic glycogen and UDP-glucose. …

Comparative in vitro metabolism of 14C-ciclesonide in hepatocytes from the mouse, rat, rabbit, dog, and human

…, DDW Liu, H Feng, J Wu, SR Howell… - American journal of …, 2007 - journals.lww.com
The in vitro metabolism of ciclesonide, a novel inhaled nonhalogenated glucocorticoid for the
treatment of asthma, was compared in cryopreserved hepatocytes from mice, rats, rabbits, …

The hepatotoxic potential of combined toluene-chronic ethanol exposure

SR Howell, JE Christian, GE Isom - Archives of toxicology, 1986 - Springer
The hepatotoxic properties of concurrent chronic oral ethanol ingestion and acute toluene
inhalation were evaluated. Male rats were maintained on ethanol-containing or control liquid …

3‐hydroxylation of salicylamide in mice

SR Howell, LA Kotkoskie, RL Dills… - Journal of …, 1988 - Wiley Online Library
Salicylamide is an important model compound for use in investigations concerning drug
disposition. In this study the metabolic fate of salicylamide at high doses was evaluated in male …