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routine retinoid screening

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https://www.readbyqxmd.com/read/26713286/dyslipidemia-in-dermatological-disorders
#1
REVIEW
Chetana Shenoy, Manjunath Mala Shenoy, Gururaja K Rao
Dyslipidemias are one of the common metabolic disorders. A link between dermatological disorders like psoriasis and dyslipidemia has been established in the recent past. Many dermatological disorders could have a systemic inflammatory component which explains such association. Chronic inflammatory dermatological disorders could also have other metabolic imbalances that may contribute to dyslipidemia. Presence of such abnormal metabolism may justify routine screening of these disorders for associated dyslipidemia and other metabolic abnormalities and early treatment of such comorbidities to improve quality of life...
October 2015: North American Journal of Medical Sciences
https://www.readbyqxmd.com/read/24764148/evaluation-of-the-hc-04-cell-line-as-an-in-vitro-model-for-mechanistic-assessment-of-changes-in-hepatic-cytochrome-p450-3a-during-adenovirus-infection
#2
Piyanuch Wonganan, Kristina Jonsson-Schmunk, Shellie M Callahan, Jin Huk Choi, Maria A Croyle
HC-04 cells were evaluated as an in vitro model for mechanistic study of changes in the function of hepatic CYP3A during virus infection. Similar to in vivo observations, infection with a first generation recombinant adenovirus significantly inhibited CYP3A4 catalytic activity in an isoform-specific manner. Virus (MOI 100) significantly reduced expression of the retinoid X receptor (RXR) by 30% 96 hours after infection. Cytoplasmic concentrations of the pregnane X receptor (PXR) were reduced by 50%, whereas the amount of the constitutive androstane receptor (CAR) in the nuclear fraction doubled with respect to uninfected controls...
July 2014: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/21989503/biological-analysis-of-endocrine-disrupting-chemicals-in-animal-meats-from-the-pearl-river-delta-china
#3
Alice Yu Sheung Law, Xi Wei, Xiaowei Zhang, Nak Ki Mak, Kwai Chung Cheung, Ming Hung Wong, John Paul Giesy, Chris Kong Chu Wong
Endocrine disrupting chemicals (EDCs) consist of a diverse group of industrial chemicals and pharmacological agents. The use of instrumental analyses as the first screening tool might not be cost-effective to identify the existence of enormous numbers of chemical contaminants in environments. Also, knowledge of the concentration of individual residues is difficult to use to evaluate biological impacts of contaminants to wildlife and humans. The primary objective of the present study was to develop and to test the feasibility of using a battery of exposure biomarkers for the rapid-screening of various endocrine disrupting activities present in food...
January 2012: Journal of Exposure Science & Environmental Epidemiology
https://www.readbyqxmd.com/read/8796989/miscellaneous-metabolic-diseases
#4
REVIEW
D Van Linthoudt, A K So
Musculoskeletal manifestations are commonly observed in metabolic disorders. Here we review the recent literature on several metabolic arthropathies. Hemochromatosis should be suspected in patients with the sign of the "iron salute". Screening for this disorder by routine measurement of transferrin saturation appears to be a cost-effective procedure in white men aged 30 years or older. In dialysis arthropathy, radiologic lesions of the hand joints increased in size and frequency with the duration of dialysis...
May 1996: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/8745889/prolonged-treatment-with-oral-retinoids-in-adults-no-influence-on-the-frequency-and-severity-of-spinal-abnormalities
#5
REVIEW
R J Van Dooren-Greebe, J A Lemmens, T De Boo, N M Hangx, A L Kuijpers, P C Van de Kerkhof
It is generally accepted that the spine is the site of predilection for retinoid-induced skeletal abnormalities. However, the reported prevalence of skeletal problems varies widely. To investigate the frequency and severity of retinoid-induced spinal abnormalities, all records of patients who underwent spinal radiographs at the request of the department of dermatology between 1983 and 1993 were reviewed. This group of 135 patients comprised the total population of retinoid-treated patients and those patients who were investigated for possible future retinoid treatment...
January 1996: British Journal of Dermatology
https://www.readbyqxmd.com/read/7953912/cell-culture-assays-for-chemicals-with-tumor-promoting-or-tumor-inhibiting-activity-based-on-the-modulation-of-intercellular-communication
#6
REVIEW
I V Budunova, G M Williams
The ability of chemicals with tumor-promoting or tumor-inhibiting activity to modulate gap junctional intercellular communication is reviewed. The two most extensively used types of assays for screening tests are (1) metabolic cooperation assays involving exchange between cells of precursors of nucleic acid synthesis and (2) dye-transfer assays that measure exchange of fluorescent dye from loaded cells to adjacent cells. About 300 substances of different biological activities have been studied using various assays...
April 1994: Cell Biology and Toxicology
https://www.readbyqxmd.com/read/6312895/rapid-characterization-of-cellular-retinoid-binding-proteins-by-high-performance-size-exclusion-chromatography
#7
S Rainier, J M Herrera, A M McCormick
A high-performance size-exclusion chromatographic method was developed for the analysis of cellular retinol and retinoic acid-binding proteins. The chromatographic analysis of the retinol-retinol-binding protein complex or the retinoic acid-retinoic acid-binding protein complex requires 15 min. The use of high-specific-radioactivity retinoid ligand (30-40 Ci/mmol) allows routine detection of 25 fmol of retinoid-binding protein/mg of cytosolic protein. Thus, this method provides a rapid alternative to sucrose density gradient sedimentation analysis of the cellular retinoid-binding proteins...
September 1983: Archives of Biochemistry and Biophysics
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