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  • Title: A dose-response relationship between sex hormone-induced change in hepatic triglyceride lipase and high-density lipoprotein cholesterol in postmenopausal women.
    Author: Colvin PL, Auerbach BJ, Case LD, Hazzard WR, Applebaum-Bowden D.
    Journal: Metabolism; 1991 Oct; 40(10):1052-6. PubMed ID: 1943731.
    Abstract:
    In previous studies, we have demonstrated a temporal relationship between the postheparin hepatic triglyceride lipase (HTGL) response to sex steroids and the high-density lipoprotein (HDL) cholesterol response. To determine if this relationship is dose-dependent, we compared the effect of three graduated doses of orally administered estradiol and norgestrel in two groups of six postmenopausal women. With estradiol administration, postheparin HTGL activity decreased from 91 +/- 46 to 50 +/- 29 nmol/min/mL, baseline to high dose (P less than .05); HDL cholesterol increased from 54 +/- 6 to 64 +/- 10 mg/dL (P less than .05); HDL2 cholesterol increased from 16 +/- 4 to 23 +/- 7 mg/dL (P less than .05); and HDL3 cholesterol concentration did not change. With norgestrel administration, HTGL activity increased from 79 +/- 19 to 109 +/- 24 nmol/min/mL (P less than .05); HDL cholesterol decreased from 64 +/- 17 to 43 +/- 7 mg/dL (P less than .05); HDL2 cholesterol decreased from 21 +/- 17 to 6 +/- 5 mg/dL (P less than .05); and HDL3 cholesterol concentration decreased from 43 +/- 8 to 38 +/- 8 mg/dL (P less than .05). The HTGL activity response was inversely correlated with estrogen dose (rs = -.733, P = .0001) and directly correlated with progestin dose (rs = .895, P = .0001). The HDL cholesterol response was directly correlated with estrogen dose (HDL: rs = .741, P = .001; HDL2: rs = .586, P = 0.003) and inversely correlated with progestin dose (HDL: rs = -.933, P = .0001; HDL2: rs = -.866, P = .0001; HDL3: rs = -.576, P = .003).(ABSTRACT TRUNCATED AT 250 WORDS)
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