Fifty-eight normal adolescent Swedish boys, aged 16, provided two sets of blood samples for plasma testosterone assays as well as data on a number of personality inventories and rating scales assessing aggression, inpulsiveness, lack of frustration tolerance, extraversion, and anxiety. Physical variab...
A PSA level above 4.0 ng/mL in any age group must be investigated. However, PSA levels can spike in noncancerous conditions, such as benign prostate hypertrophy (BPH), urinary tract infections, prostatitis, consumption of testosterone supplements, recent catheterization, and injuries to the pelvic...
Testosterone (male): 291–1100 ng/dL Thyroxine-binding globulin: 12–27 µg/mL Thyroid-stimulating hormone (TSH): 0.5–4.0 μU/mL (0.5–4.0 mU/L) Total T4, adult: 5–12 μg/dL Total T3: 80–180 ng/dL Free T3: 2.3–4.2 pg/mL Vitamins Normal vitamin ranges include the...
testosteroneorgasmic frequencysexual activityTwenty males participated in a 2-month study examining the relationship between 8 a.m. plasma testosterone levels and orgasmic frequency. Within subjects, higher levels of testosterone are associated with periods of sexual activity. Over subjects, however, the ...
Reference intervals for serum testosterone, SHBG, LH and FSH in males from the NORIP project Reference intervals were calculated for male testosterone, SHBG, FSH and LH in serum from 599 individuals in the NORIP study. At 30 years of age, reference... J Bjerner,D Biernat,SD Fosså,.....
Men's testosterone levels in the blood are thought to fall with age, although this may actually be more related to diseases that occur with age. Women's testosterone levels are a bit more stable, without any known daily or yearly changes. As with men, however, they also decrease a little...
Normalization of serum PRL levels is generally associated with an increase in serum testosterone (T) to normal. To determine the mechanism of the inhibitory effect of hyperprolactinemia on the hypothalamic-pituitary-gonadal axis, we studied the effect of intermittent pulsatile GnRH administration on LH...
Correlation between effect on LH secretion and testosterone secretion was not found. By infusion of 1 μg/kg/hour of d-Leu6-des-Gly10-GnRH-ethylamide in two men over a period of 15 hours, a plateau of gonadotropin levels was reached within 7 to 9 hours. These plateau levels, ...
In 113 normal subjects, plasma testosterone levels of five to ten year-old males and females were found to range from 20 to 75ng/dl, and 10 to 50ng/dl, respectively. Normal range of the adult male (age 20 to 70) was between 350 and 1,150ng/dl, and that of the normal female ...
Speculation A linear correlation exists between rates of excretion of testosterone and age in prepubertal children. Very young children (less than 12 months of age) may have higher levels. Rates of production of testosterone in urine are more useful than is generally thought. 310 DEGENHART, VISSER...