نتایج جستجو برای: retinol acetate
تعداد نتایج: 55228 فیلتر نتایج به سال:
در این رساله اسانس گیاهان ذیل مورد بررسی و آنالیز قرار گرفتند: اسانس اجزاء گیاه leutea petiolare مورد آنالیز واقع گردید. ترکیبات اصلی اسانس گل عبارتنداز: beta-pinene(32.081)،fenchyl acetate (35.776) alpha- pinene(3.06), beta-eudesmol(5/236), از17ترکیب شناسائی شده دراسانس برگ عبارتنداز (6.952) sabinene،d-limonene (11/749)،beta-(e) ociemen (297.8) ، واز 12ترکیب شناسایی شده دراسانس ساقه ...
Hypothyroidism and hyperthyroidism are prevalent endocrine diseases.These have significant implications for lipid synthesis, mobilization, metabolism. Retinol-binding protein 4 is a new adipokine implicated in some physiological pathological processes, such as metabolic disorders. Its elevation aids the diagnosis of thyroid problems. The present study includes 60 women with diseases; 30 them hy...
tumorigenesis by modifying endocrine status, possibly by in terfering with some aspect of ovarian or pituitary function. The inhibitory nature of either a deprival or an excess of ovarian and/or hypophysial hormone(s) on mammary carcinogenesis is well documented (4). However, it has been reported that retinyl acetate inhibits mammary carcinogenesis to a greater extent in the presence of the inh...
Retinoic acid, retinol, retinyl acetate, and retinal induced activities of lysosomal enzymes, such as lysozyme, acid protease, and acid phosphatase, in mouse myeloid leukemia cells (M1), while the pyridyl analog of retinoic acid had no effect. Retinoic acid was the most potent inducer of lysosomal enzyme activities. The induction of lysozyme activity by retinoic acid was inhibited by treatment ...
PURPOSE Interphotoreceptor retinoid-binding protein(IRBP) is a four-repeat protein found in the interphotoreceptor space. Each repeat can bind retinoids and fatty acids. The purpose of this study was to examine the effects of the single amino acid substitution, G239T, versus the wild type sequence of human IRBP Repeat 1, on ligand binding at equilibrium, ligand off rates, and protection of reti...
This analysis evaluated the association between serum retinol levels and risk of head and neck cancer (HNC) and whether the association is modulated by the use of alcohol, betel quid, or cigarette. In addition, we also examined the association between HNC risk and 2 single nucleotide polymorphisms, TTR rs1667255 and RBP4 rs10882272, that have been associated with serum retinol levels. Unconditi...
Previous studies in our laboratory showed a synergistic interaction of synthetic ligands selective for the retinoid receptors RAR and RXR in regard to teratogenic effects produced in mice (M. M. Elmazar et al., 2001, TOXICOL: Appl. Pharmacol. 170, 2-9). In the present study the influence of phytol and phytanic acid (a RXR-selective ligand) on the teratogenicity of retinol and the RAR-selective ...
Using the World Health Organization criterion, the prevalence of sub-clinical vitamin A deficiency can be assessed using plasma retinol concentrations <0.7 micromol/l. However, plasma retinol can be depressed by infection; thus, the use of this criterion alone may overestimate deficiency. In the present study, we investigated the usefulness of the acute-phase proteins (APP) alpha1-antichymotryp...
Retinol (vitamin A alcohol) is an accepted adjunctive treatment in infections such as measles. There is also indirect evidence from in vitro, animal and human studies that retinol supplementation may be beneficial in severe malaria. There have, however, been no studies that have examined the pharmacokinetics of acute retinol supplementation in severe illness. To establish whether mobilization o...
Dietary intakes and plasma concentrations of retinol and carotenoids were estimated in assessing the vitamin A status of Korean adults living in Seoul and the metropolitan area. Three consecutive 24-h food recalls were collected from 106 healthy subjects (33 males and 73 females) aged 20-59 years. Fasting blood samples of the subjects were obtained and plasma retinol and carotenoids were analyz...
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