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Spectrophotometrical (412 nm) readings of known amounts of 1-carnitine gave absorbancy changes with minimal interassay variations (8%) in the range of 15.6-125 microM. A 100-microliters volume of seminal plasma was needed for optimal assay repeatability; recoveries of added carnitine were linear (r = 0.998), indicating a sensitivity limit of 0.70(More)
We have investigated on eventual relationships existing in men between plasma levels of 17-a-OH-Progesterone (17-a-OH-P) and, plasma levels of Testosterone (T) and on the modifications of these relationships after stimulation of the testicles by HCG (Human Chorionic Gonadotropin). An inverse correlation exists between basal plasma levels of the two steroids(More)
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