title: Free serum testosterone level in male rats treated with Tribulus alatus extracts.
abstract: OBJECTIVE
  The present study was undertaken to investigate the effect of Tribulus alatus extracts on free serum testosterone in male rats.
  
  
  METHODS
  Free serum testosterone level was measured in male rats treated with alcoholic extracts of the aerial part without fruits, fruits of Tribulus alatus and their fractions.
  
  
  RESULTS
  All tested extracts showed significant increase in the level of free serum testosterone when compared to that of corresponding control, p < 0.05. Statistical comparison of all groups revealed that the maximum level was found in groups treated with chloroformic and ethanolic fractions of fruits extract.
  
  
  CONCLUSIONS
  Tribulus alatus extract appears to possess aphrodisiac activity due to its androgen increasing property.
authors.affiliation: Drug Bioavailability Center, National Organization For Drug Control and Research, Cairo, Egypt. wldhmdy@yahoo.com
authors.forename: Walid H
authors.initials: WH
authors.lastname: El-Tantawy
authors.forename: Abeer
authors.initials: A
authors.lastname: Temraz
authors.forename: Omayma D
authors.initials: OD
authors.lastname: El-Gindi
mesh_terms: D000818:Animals; D001046:Aphrodisiacs / Q000737:chemistry / Q000494:pharmacology*; D004353:Drug Evaluation, Preclinical; D008297:Male; D010413:Penis / Q000098:blood supply; D008517:Phytotherapy; D035261:Plant Components, Aerial / Q000737:chemistry*; D010936:Plant Extracts / Q000494:pharmacology; D011897:Random Allocation; D051381:Rats; D017208:Rats, Wistar; D012726:Sexual Behavior, Animal / Q000187:drug effects*; D013739:Testosterone / Q000097:blood*; D032444:Tribulus / Q000737:chemistry*
chemical_list: D001046:Aphrodisiacs; D010936:Plant Extracts; D013739:Testosterone