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Kinetics of human spermatozoa long-chain fatty acid：CoASH ligase
human spermatozoa long-chain fatty acid CoASH ligase
2009/2/23
The kinetics of long-chain saturated fatty acid activation were studied in the supernatant obtained from Triton-treated human spermatozoa. Sperm long-chain fatty acid: CoASH ligase (AMP) (E.C. 6.2.1...
Specific inhibition of the testicular mitochondrial respiratory chain in vitro by gossypol
Specific inhibition testicular mitochondrial respiratory chain gossypol
2009/2/20
Optically inactive gossypol is an effective male antifertility agent in several mammalian species, while optically active (+)-gossypol has no antifertility effect in the rat and hamster. Recently, i...
P450 aromatase messenger ribonucleic acid expression in male rat germ cells: detection by reverse transcription-polymerase chain reaction amplification
Germ cells spermatids P450 aromatase estrogen
2009/2/17
We have previously demonstrated that cytochrome P450 aromatase (P450arom) protein, an estrogen-synthesizing enzyme, is present and active in germ cells of the adult mouse testis. To establish that P...
Leydig cell aging：steroidogenic acute regulatory protein（StAR）and cholesterol side-chain cleavage enzyme
Leydig cell aging protein（StAR） cholesterol side-chain cleavage enzyme
2008/12/26
Primary points of control in steroidogenesis are the transport of cholesterol from intracellular stores to the inner mitochondrial membrane, and the subsequent conversion of cholesterol to pregnenolon...
Temporal Relationships Among Testosterone Production, Steroidogenic Acute Regulatory Protein (StAR), and P450 Side-Chain Cleavage Enzyme（P450scc）During Leydig Cell Aging
Leydig cell cyclic AMP steroidogenesis Brown Norway rat
2008/12/22
Previous studies have shown that the capacity of Leydig cells from aged (21-24-month-old) Brown Norway rats to produce testosterone is reduced from young (4-month-old) levels, and that this is cor...