Regulation of dolichol and of cholesterol biosynthesis in cholesterol-fed rabbits.
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Biomedical subjects
Publications and source records attributed to S Pawson.
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Feeding rats with sorbitol, fructose, glycerol and ethanol increases the concentration of serum corticosterone without significantly altering the concentration of insulin. This increase appears to be partly responsible for the increases in the hepatic activity of phosphatidate phosphohydrolase (compared with rats fed glucose or 0.9% NaCl) that has been reported [Sturton, Pritchard, Han & Brindley (1978) Biochem. J. 174, 667--670] and the enhanced capacity of the liver to synthesize triacylglycerols. The ethanol-induced increase in phosphohydrolase activity was largely, but not completely, prevented by adrenalectomy.
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Biologic and physiologic factors associated with the availability of breast secretions by a nipple aspiration technique were investigated in 606 normal, non-lactating women. Data obtained on race, age, menstrual status, parity, contraceptive pill use, hormone use, and cerumen type indicated that availability of secretions was related to race, age, and menopause, and to genetic factors associated with apocrine bland function. Fluid aspirates were obtained most often from Caucasians (70.2% success), least often from Chinese (24.1% success). The percentage of successful aspirations declined in women over 50 years of age in all racial groups, but distinctly less so in Caucasians. Chinese and Japanese women with dry-type cerumen had a lower percentage of successful aspirations than those with wet type, which suggested that genetic factors may be associated with breast fluid secretion in nonlactating women.
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