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53 patients previously operated upon for cryptorchidism were examined seven years (range 2-18) after the operation. We measured serum levels of sex-hormone-binding-globulin (SHBG), testosterone (T), free testosterone (free T), dihydrotestosterone (DHT), 4 androstenedione (4-AD), and dehydroepiandrosteronesulphate (DHAS), and the gonadotropin luteinizing(More)
We have devised a new enzymatic determination of sn-glycero-3-phosphocholine (GPC) in human seminal plasma. This is based on GPC hydrolysis by a phosphodiesterase (PDE), free choline being then determined by the choline oxidase method. The whole procedure involves a first incubation in the presence of choline oxidase and catalase, to eliminate the excess of(More)
This study collected data on rates of cigarette smoking in the following Pacific Islands: Cook Islands, Fiji, Kiribati, Nauru, New Caledonia, Niue, Tuvalu, and Western Samoa. The data were collected in 1975-81 as part of a diabetes-cardiovascular diseases survey. A large variation in the prevalence of smoking was found in the populations surveyed. 90%(More)
Incubation of washed human sperm with [3H]- or [14C]arachidonic acid allowed a major incorporation of the label into phospholipids, provided that the final concentration of the fatty acid did not exceed 20 microM. A further challenge with calcium ionophore A23187 of spermatozoa suspended in a calcium-containing medium led to phospholipid hydrolysis, which(More)
Human sperm lysates were incubated in the presence of 1-[14C]stearoyl-2-acyl-sn-glycero-3-phosphocholine, 1-[14C]stearoyl-2-acyl-sn-glycero-3-phosphoethanolamine or 1-[14C]stearoyl-2-acyl-sn-glycero-3-phosphoinositol. Only the latter substrate was hydrolyzed to a significant extent, with a concomitant formation of 1-[14C]stearoyl-2-acyl-sn-glycerol.(More)
The metabolic effects of four oral contraceptives with different estrogen/progestogen profiles (monophasic nonalkylated estrogen/norethindrone, low-dose monophasic ethinyl estradiol (EE2)/norethindrone, progestogen only treatment with norethindrone, and triphasic EE2/levonorgestrel) were examined in insulin-dependent diabetic women. During the 6-month study(More)
Thirty-five bone marrow biopsies were performed in 9 patients with plasmacytic/plasmablastic myeloma stage IIIA of the Durie and Salmon classification. The cytologic and/or histologic transformation observed in the serial bone marrow biopsy specimens of 3 patients reflected an aggravation of the disease, and was expressed as an increase of bone marrow(More)