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319 records · Page 18Linked to original sources
PubMed1978

Testosterone rebound therapy: a neglected modality.

A summary of the literature and a 20-year review of our own experience with testosterone rebound therapy is presented. Of 225 patients followed, 52% rebounded to fertile levels followed by pregnancy in the wives of 25%. Pregnancy occurred in 3 wives (8%) of the 38 initially azoospermic patients. There was only a 4% incidence of failure to return to at least the pretreatment sperm count following therapy, and no persistent azoospermia was observed. These results are consistent with other recent reports of several large series of patients. Proper screening and selection of patients is mandatory. Testosterone rebound is a neglected form of therapy meriting consideration in selected patients.

Cell Count↗
PubMed1984

[Acquired aplastic anemia in children. Therapy using androgens and antilymphocyte gamma globulin].

Authors describe initial characteristics, clinical course and response to treatment of 13 children, aged from eight months to nine years, with acquired aplastic anaemia. Six of the children had been exposed to products with potential bone-marrow toxicity: chloranphenicol (1), pirazolones (3) and insecticides (2). Pancytopenia was severe in twelve and moderate in one. Five patients with severe aplastic anaemia were given antilymphocytic (2) or antithymocytic (3) (ATG) gammaglobulins; two of those treated with ATG responded after two and five months respectively and there was no response in the other three. Twelve patients were given androgen treatment (oxymetholone or nandrolone decanoate): four, two of whom previously had received ATG, followed a favorable course. None of the severe initial pancytopenic patients responded to androgen single agent treatment. No marrow transplant was performed in any of the children. Eight of the thirteen patients died one to 37 months after onset (median, 6 months) and five (38%) are alive after 21 months to 10 years, corresponding to two patients with moderate and three with severe initial pancytopenia. Importance of an appropriate supportive treatment during initial stages of the disease and the probable efficacy or immunosupressive treatment in certain patients must be underlined.

Androgens↗
PubMed1984

A study of the efficacy of 5 alpha- and 5 beta-androstanes in chronic experimental aplastic anemia in mice.

The efficacy of in vivo administration of a 5 alpha-androstane and two 5 beta-androstanes (3 alpha and 3 beta) on CFU/GM and CFU/E mouse bone marrow stem cells was compared. The subjects were two groups of Swiss Webster mice: one normal group and one group in whom chronic aplastic anemia was induced by irradiation followed by mesenteric node lymphocyte grafting from C57/Bl donor mice. In normal animals, the two types of androgens (5 alpha and 5 beta) had the same efficacy, and the injection of 5 beta-androstane, before that of 5 alpha, significantly increased its efficacy. In aplastic mice, 5 alpha and 5 beta-androstanes had the same efficacy on CFU/E but 5 beta-androstanes were more efficient on the granulopoietic committed stem cells. The efficacy of the association of the two compounds in aplastic mice was not superior to that of each drug alone, which can be explained by the depletion of the stem cell compartment induced by the stimulating effect of the first androgen.

Androsterone↗
PubMed1993

International cooperation in analytical chemistry: experience of antidoping control at the XI Pan American Games.

We describe the experience of the international cooperation carried out for antidoping control at the XI Pan American Games. A temporary accreditation was granted by the International Olympic Committee to the accredited laboratory of Barcelona (Spain) to set up a Doping Control Laboratory in Havana. Two other laboratories from Mexico and Cuba contributed personnel, materials, and instrumentation. The main issues associated with the preparation and organization of the project are described. During 16 days, 741 urine samples were tested for stimulants, narcotics, anabolic steroids, beta-blockers, diuretics, cannabinoids, local anesthetics, and human chorionic gonadotropin by gas-liquid chromatography, gas chromatography/mass spectrometry, high-performance liquid chromatography, and immunoassay techniques. Analytical methodologies, quality-control strategies, and the main results are reported.

Acebutolol↗