O hipogonadismo masculino é caracterizado por baixa testosterona sérica e baixos níveis de espermatozóides, acompanhados sinais sintomas clínicos que podem ser divididos em dois grupos. primeiro grupo inclui desenvolvimento sexual incompleto ou retardado, redução da libido, disfunção erétil, ginecomastia, diminuição pelos axilares, faciais pubianos, testículos pequenos, infertilidade osteopenia.

Objective. To determine if sexual intercourse reduces absorption of vaginal progesterone gel in women and to determine if progesterone is absorbed by the male during intercourse. Study Design. Prospective, randomized, cross over, controlled study of 20 reproductive-aged women and their male sexual partners randomized to receive vaginal progesterone gel (Crinone 8% gel, Actavis Inc., USA) or pla...

D-aspartic acid (DAA), nitrate, and vitamin D3 have received considerable attention in recent years for their potential health-enhancing properties. Using an open-label design, we evaluated the impact of a DAA/sodium nitrate/ vitamin D3 dietary supplement on blood testosterone and nitrate/nitrite, as well as subjective indicators of health, in middle-aged men. Methods: 10 overweight or obese me...

The aim of this study was to evaluate the rejection rates of bulls in the behavioral assessment (libido and mounting capacity) and the importance of this step in the breeding soundness evaluation of 30,700 beef bulls in the state of Rio Grande do Sul, Brazil. Bulls from the following breeds were evaluated: Aberdeen Angus, Red Angus, Hereford, Polled Hereford, Devon, Shorthorn, Brangus, Braford,...