title: Improved effect of Pycnogenol on impaired spatial memory function in partial androgen deficiency rat model.
abstract: The improved effect of Pycnogenol on impaired spatial memory function was studied in orchidectomized rats. Endogenous testosterone levels were decreased by approximately one-half for 3 months after castration. In the radial arm maze, castration significantly impaired working and reference memory function without lowering motor function. Pycnogenol increased the NGF content in the hippocampus and cortex, and improved the spatial memory impairment. These observations confirmed that diagnostic accuracy can be improved by Pycnogenol in androgen-deficient rats.
authors.affiliation: Department of Health and Nutrition, Faculty of Home Economics, Gifu Women's University, Gifu, Japan. hsgwn@gijodai.ac.jp
authors.forename: Noboru
authors.initials: N
authors.lastname: Hasegawa
authors.forename: Miyako
authors.initials: M
authors.lastname: Mochizuki
mesh_terms: D000728:Androgens / Q000172:deficiency*; D000818:Animals; D005419:Flavonoids / Q000494:pharmacology*; D006624:Hippocampus / Q000378:metabolism; D008297:Male; D018782:Maze Learning / Q000187:drug effects; D008568:Memory / Q000187:drug effects*; D008569:Memory Disorders / Q000188:drug therapy*; D009043:Motor Activity / Q000187:drug effects; D009414:Nerve Growth Factors / Q000378:metabolism; D009919:Orchiectomy; D010936:Plant Extracts; D051381:Rats; D017207:Rats, Sprague-Dawley; D013739:Testosterone / Q000097:blood / Q000172:deficiency
chemical_list: D000728:Androgens; D005419:Flavonoids; D009414:Nerve Growth Factors; D010936:Plant Extracts; D013739:Testosterone; C024070:pycnogenols