It might also be particularly interesting to note, as we currently have a debate going as to how anabolic GH is and its effects on the body, that women secrete far more GH daily than men. While clearance times are almost identical in both sexes, men tend to be twice as GH sensitive while pulsing GH nocturnally while women pulse throughout the day as well. While women are half as sensitive to GH, they produce many-fold total GH (at least neurologically) as men.
This may account for pre- and pubescent females ability to grow statistically taller earlier until estrogen blunts the sensitivity while male children will eventually outpace females in growth (height) along with continued endogenous androgen production.
"We report the results of a placebo-controlled study in 36 men and women with GH deficiency who received the same dose of rhGH per body surface area (1.25 U/m2 per day) for 9 months. We observed significantly greater responses in male patients than in female patients with regard to the changes in serum levels of IGF-I, body composition and biochemical markers of bone metabolism. When these patients continued to receive GH replacement therapy for an additional 24 months, the dose of rhGH was adjusted to the serum levels of IGF-I. As a result, the dose administered to the male patients was reduced to nearly half that given to the female patients (1.0 vs 1.9 U/day) and the serum levels of IGF-I and of biomarkers of bone turnover increased to the same extent in patients of both sexes. However, an increase in bone density of the hip and the lumbar spine after a total of 33 months of rhGH treatment was observed only in the male patients"
Women received twice the amount of supplemental GH while only the males experienced an increase in bone density. To me, that's very odd.
Several trials with growth hormone (GH) replacement therapy in adults with GH deficiency have been conducted during the last 10 years. Beneficial effects of treatment on bone density, physical capacity, body composition, lipid profile and quality of life have been reported. It has long been...
pubmed.ncbi.nlm.nih.gov
Gender has multiple significant influences on the human GH axis in the premenopausal age group (Table 1), and attenuates by approximately 50% the negative impact of age on daily GH secretion rates, the inverse association between total adiposity and GH production, and the positive effect of...
pubmed.ncbi.nlm.nih.gov