Endocrine and Lipid Responses to Chronic Androstenediol-Herbal Supplementation in 30 to 58 Year Old Men
Gregory A. Brown, MS,
Matthew D. Vukovich, PhD,
Emily R. Martini, BS,
Marian L. Kohut, PhD,
Warren D. Franke, PhD,
David A. Jackson, MS and
Douglas S. King, PhD
Exercise Biochemistry Laboratory, Department of Health and Human Performance, Iowa State University, Ames Iowa (G.A.B., E.R.M., M.L.K., W.D.F., D.A.J., D.S.K.)
Human Performance Laboratory, South Dakota State University, Department of HPER, Brooking, South Dakota (M.D.V.)

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Fig. 1. Serum total testosterone concentrations during four weeks of nutritional supplementation. Data are means ± SE.
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Fig. 2. Serum free testosterone concentrations during four weeks of nutritional supplementation. * = Significantly different from week 0 for AND-HB (Treatment by Week effect, p < 0.05); = 50 year olds significantly different from 30 year olds at baseline (Age by Week effect, p < 0.05). Data are means ± SE.
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Fig. 3. Serum androstenedione concentrations during four weeks of nutritional supplementation. * = Significantly different from week 0 for AND-HB (Treatment by Week effect, p < 0.05); = 30 year olds significantly different from 40 and 50 year olds at baseline (Age by Week effect, p < 0.05). Data are means ± SE.
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Fig. 4. Serum dihydrotestosterone concentrations during four weeks of nutritional supplementation. * = Significantly different from week 0 for AND-HB (Treatment by Week effect, p < 0.05); = 30 year olds significantly different from 40 and 50 year olds at baseline (Age by Week effect, p < 0.05). Data are means ± SE.
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Fig. 5. Serum estradiol concentrations during four weeks of nutritional supplementation. * = Significantly different from week 0 for AND-HB (Treatment by Week effect, p < 0.05). Data are means ± SE.
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Fig. 6. Serum prostate specific antigen concentrations during four weeks of nutritional supplementation. Data are means ± SE.
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Copyright © 2001 by the American College of Nutrition.