نتایج جستجو برای: xenobiotic metabolism

تعداد نتایج: 227538  

2007
Matthew Wortham Maciej Czerwinski Lin He Andrew Parkinson Yu-Jui Yvonne Wan

Identification of genetic variation predictive of clearance rate of a wide variety of prescription drugs could lead to cost-effective personalized medicine. Here we identify regulatory genes whose variable expression level among individuals may have widespread effects upon clearance rate of a variety of drugs. Twenty liver samples with variable CYP3A activity were profiled for expression level ...

2014
Richard A Miller David E Harrison Clinton M Astle Elizabeth Fernandez Kevin Flurkey Melissa Han Martin A Javors Xinna Li Nancy L Nadon James F Nelson Scott Pletcher Adam B Salmon Zelton Dave Sharp Sabrina Van Roekel Lynn Winkleman Randy Strong

Rapamycin, an inhibitor of mTOR kinase, increased median lifespan of genetically heterogeneous mice by 23% (males) to 26% (females) when tested at a dose threefold higher than that used in our previous studies; maximal longevity was also increased in both sexes. Rapamycin increased lifespan more in females than in males at each dose evaluated, perhaps reflecting sexual dimorphism in blood level...

2017
Patrick B Hamilton Gregor Rolshausen Tamsyn M Uren Webster Charles R Tyler

Many fish populations are exposed to harmful levels of chemical pollution and selection pressures associated with these exposures have led to the evolution of tolerance. Our understanding of the physiological basis for these adaptations is limited, but they are likely to include processes involved with the absorption, distribution, metabolism and/or excretion of the target chemical. Other poten...

Journal: :iranian journal of basic medical sciences 0
aydan caglayan hacettepe university, faculty of pharmacy, department of toxicology, ankara 06100 turkey belma kocer-gumusel hacettepe university, faculty of pharmacy, department of toxicology, ankara 06100 turkey pinar erkekoglu hacettepe university, faculty of pharmacy, department of toxicology, ankara 06100 turkey filiz hincal hacettepe university, faculty of pharmacy, department of toxicology, ankara 06100 turkey

objective(s): particularly in developing countries, selenium and/or iodine deficiencies are encountered and use of pesticides in agriculture are not well-controlled. fenvalerate is a pyrethroid insectide used in agriculture and has applications against a wide range of pests. this study was designed to evaluate the effects of fenvalerate on hepatic and cerebral xenobiotic metabolizing enzyme act...

2013
Anita R. Iskandar Florian Martin Marja Talikka Walter K. Schlage Radina Kostadinova Carole Mathis Julia Hoeng Manuel C. Peitsch

Capturing the effects of exposure in a specific target organ is a major challenge in risk assessment. Exposure to cigarette smoke (CS) implicates the field of tissue injury in the lung as well as nasal and airway epithelia. Xenobiotic metabolism in particular becomes an attractive tool for chemical risk assessment because of its responsiveness against toxic compounds, including those present in...

2017
Matan Shelomi

The Malpighian tubules are the insect excretory organs, responsible for ion and water homeostasis and elimination of nitrogenous wastes. Post-genomic assays suggest they also metabolize and detoxify xenobiotic compounds and have antimicrobial properties. The Phasmatodea have an additional, unique set of excretory organs referred to predominantly as midgut appendices. Their function and how it c...

Journal: :Aquatic toxicology 2013
Doris E Vidal-Dorsch Steven M Bay Cataldo Ribecco L James Sprague Mila Angert Colleen Ludka Eugenia Ricciardelli Oliana Carnevali Darrin J Greenstein Daniel Schlenk Kevin M Kelley Jesus A Reyes Shane Snyder Brett Vanderford Lan C Wiborg Dawn Petschauer Roman Sasik Michael Baker Gary Hardiman

Laboratory tests with marine flatfish were conducted to investigate associations among gene expression, higher biological responses and wastewater effluent exposure. In the present study, male hornyhead turbot (Pleuronichthys verticalis) were exposed to environmentally realistic (0.5%) and higher (5%) concentrations of chemically enhanced advanced-primary (PL) and full-secondary treated (HTP) e...

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