Does HGH increase libido????

RedRec

New Member
This question goes to those who have had personal experience with HGH usage, or people who know of controlled studies that have been done.

Does HGH increase libido???

Does HGH increase erectile dysfunction???
 
This question goes to those who have had personal experience with HGH usage, or people who know of controlled studies that have been done.

Does HGH increase libido???

Does HGH increase erectile dysfunction???
With my wide experience with hGH and as someone always on the outlook for pleasure enhancers, I will have to say "no" to both questions (and to your rephrasing of the second question).:rolleyes:

Solo
 
in my experience, no to both. but as the doc loosely points out there will be enough 'broscience' on forums to prompt the idiots to claim there is a 'connection with erection' see what i did there, huh? :D
 
Effect of insulin-like growth factor-I treatment on serum androgens and testicular and penile size in males with Laron syndrome (primary growth hormone resistance). http://eje-online.org/content/138/2/176.full.pdf

Serum gonadotrophins. androgens, insulin and insulin-like growth factor-I (IGF-I) were determined before and during long-term treatment with recombinant IGF-I of seven males with Laron syndrome, and the changes correlated with changes in testicular volume and penile size. The subjects were four boys below the age of 5, two boys aged 10 and 14 but prepubertal and one 28-year-old fully sexually developed adult. IGF-I was administered by a once daily subcutaneous injection of 150 microg/kg per day to the boys and 120 microg/kg per day to the adult patient. In the very young boys no change in serum gonadotrophins, androgens, gonads or genitals was registered. In the two older boys and the adult patient, there was a progressive rise in luteinizing hormone, follicle-stimulating hormone and testosterone. Concomitantly, there was an increase in size of the testes and penile length. The two boys started puberty. As very high serum IGF-I levels were registered in the adult patient, the daily dose was progressively decreased to 70 microg/kg per day. Stopping the IGF-I administration in this patient, according to the protocol, led to a return to pretreatment serum levels and testicular and penile size. This report shows for the first time a direct effect of IGF-I on sex hormones and sex organs in the male.
 
Becker AJ, Uckert S, Stief CG, et al. Possible role of human growth hormone in penile erection. J Urol 2000;164(6):2138-42. Elsevier

PURPOSE: Treatment with recombinant human growth hormone in adult patients with growth hormone deficiency increases nitric oxide and cyclic guanosine monophosphate (cGMP). We examined the functional in vitro effects of recombinant human growth hormone on tissue tension and cyclic nucleotide levels of human corpus cavernosum and detected changes in growth hormone in the cavernous and peripheral blood during different phases of penile erection.

MATERIALS AND METHODS: Relaxant responses of human corpus cavernosum were investigated using the organ bath technique. Tissue levels of cGMP were determined by a specific radioimmunoassay after dose dependent exposition of isolated human corpus cavernosum strips to recombinant human growth hormone. In 35 healthy potent volunteers blood samples were obtained simultaneously from the corpus cavernosum and cubital vein during different functional conditions of the penis, including flaccidity, tumescence, rigidity and detumescence. Penile erection was induced by audiovisual and tactile stimulation. Serum growth hormone was determined by an immunoradiometric assay.

RESULTS: Recombinant human growth hormone elicited dose dependent relaxation of human corpus cavernosum strips in vitro. The relaxing potency of recombinant human growth hormone was paralleled by its ability to elevate intracellular levels of cGMP. In vivo the peripheral growth hormone serum profile of the respective penile conditions did not significantly differ from those of cavernous serum. The main increase in growth hormone to greater than 90% was determined during developing penile tumescence, followed by a transient decrease afterward.

CONCLUSIONS: These results suggest that penile erection may probably be induced by growth hormone through its cGMP stimulating activity on human corpus cavernosum smooth muscle.


Becker AJ, Uckert S, Stief CG, et al. Serum levels of human growth hormone during different penile conditions in the cavernous and systemic blood of healthy men and patients with erectile dysfunction. Urology 2002;59(4):609-14. Elsevier

OBJECTIVES: To detect changes in growth hormone (GH) serum levels during different penile conditions in the cavernous and systemic blood of patients with erectile dysfunction and compare them with the course of GH registered in healthy men. It has been suggested that human GH is involved in sexual maturation and plays a regulatory role in male reproductive function. Deficiency may result in fatigability, loss of sexual desire and erection, or oligospermia or azoospermia. It is assumed that the biologic effects of GH include insulin-like growth factor 1-mediated stimulation of endothelial nitric oxide formation. It has recently been demonstrated that GH serum levels in the systemic and cavernous blood of healthy men increases during developing penile erection.

METHODS: Thirty-five healthy adult men and 45 patients with erectile dysfunction of either organogenic or psychogenic etiology were exposed to visual and tactile erotic stimuli to elicit penile tumescence and, in the group of healthy subjects, rigidity. Whole blood was simultaneously aspirated from the corpus cavernosum and the cubital vein during the different functional conditions of the penis. Serum levels of GH were determined by means of an immunoradiometric assay.

RESULTS: In the healthy subjects, systemic GH serum levels significantly increased during penile tumescence, followed by a transient decline from tumescence to rigidity and detumescence. In the unselected patients, the mean GH levels during penile flaccidity were determined to be about sevenfold lower than those registered in the blood of the healthy men. During penile tumescence, the mean increase in the GH levels in the systemic and cavernous blood of psychogenic patients was comparable to that seen in healthy men, but, in the group of organogenic patients, this increase was found to be negligible.

CONCLUSIONS: We believe our data provide strong evidence that GH may be of major importance in the maintenance of male erectile capability-probably through a stimulating effect on cyclic guanosine monophosphate generation in human cavernous smooth muscle-and that a decline in GH release may contribute to the manifestation of erectile dysfunction.
 
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Of course, the cited studies are on cases of debilitation or deficiency, so they do not imply positive growth or response beyond that supplied by nature.

Solo
 
Becker AJ, Uckert S, Stief CG, et al. Possible role of human growth hormone in penile erection. J Urol 2000;164(6):2138-42. Elsevier

PURPOSE: Treatment with recombinant human growth hormone in adult patients with growth hormone deficiency increases nitric oxide and cyclic guanosine monophosphate (cGMP). We examined the functional in vitro effects of recombinant human growth hormone on tissue tension and cyclic nucleotide levels of human corpus cavernosum and detected changes in growth hormone in the cavernous and peripheral blood during different phases of penile erection.

MATERIALS AND METHODS: Relaxant responses of human corpus cavernosum were investigated using the organ bath technique. Tissue levels of cGMP were determined by a specific radioimmunoassay after dose dependent exposition of isolated human corpus cavernosum strips to recombinant human growth hormone. In 35 healthy potent volunteers blood samples were obtained simultaneously from the corpus cavernosum and cubital vein during different functional conditions of the penis, including flaccidity, tumescence, rigidity and detumescence. Penile erection was induced by audiovisual and tactile stimulation. Serum growth hormone was determined by an immunoradiometric assay.

RESULTS: Recombinant human growth hormone elicited dose dependent relaxation of human corpus cavernosum strips in vitro. The relaxing potency of recombinant human growth hormone was paralleled by its ability to elevate intracellular levels of cGMP. In vivo the peripheral growth hormone serum profile of the respective penile conditions did not significantly differ from those of cavernous serum. The main increase in growth hormone to greater than 90% was determined during developing penile tumescence, followed by a transient decrease afterward.

CONCLUSIONS: These results suggest that penile erection may probably be induced by growth hormone through its cGMP stimulating activity on human corpus cavernosum smooth muscle.


Becker AJ, Uckert S, Stief CG, et al. Serum levels of human growth hormone during different penile conditions in the cavernous and systemic blood of healthy men and patients with erectile dysfunction. Urology 2002;59(4):609-14. Elsevier

OBJECTIVES: To detect changes in growth hormone (GH) serum levels during different penile conditions in the cavernous and systemic blood of patients with erectile dysfunction and compare them with the course of GH registered in healthy men. It has been suggested that human GH is involved in sexual maturation and plays a regulatory role in male reproductive function. Deficiency may result in fatigability, loss of sexual desire and erection, or oligospermia or azoospermia. It is assumed that the biologic effects of GH include insulin-like growth factor 1-mediated stimulation of endothelial nitric oxide formation. It has recently been demonstrated that GH serum levels in the systemic and cavernous blood of healthy men increases during developing penile erection.

METHODS: Thirty-five healthy adult men and 45 patients with erectile dysfunction of either organogenic or psychogenic etiology were exposed to visual and tactile erotic stimuli to elicit penile tumescence and, in the group of healthy subjects, rigidity. Whole blood was simultaneously aspirated from the corpus cavernosum and the cubital vein during the different functional conditions of the penis. Serum levels of GH were determined by means of an immunoradiometric assay.

RESULTS: In the healthy subjects, systemic GH serum levels significantly increased during penile tumescence, followed by a transient decline from tumescence to rigidity and detumescence. In the unselected patients, the mean GH levels during penile flaccidity were determined to be about sevenfold lower than those registered in the blood of the healthy men. During penile tumescence, the mean increase in the GH levels in the systemic and cavernous blood of psychogenic patients was comparable to that seen in healthy men, but, in the group of organogenic patients, this increase was found to be negligible.

CONCLUSIONS: We believe our data provide strong evidence that GH may be of major importance in the maintenance of male erectile capability-probably through a stimulating effect on cyclic guanosine monophosphate generation in human cavernous smooth muscle-and that a decline in GH release may contribute to the manifestation of erectile dysfunction.
I truly believe any effect of hgh on erection quality is possible from effects on alpha adrenergic receptor function. This would also explain why hgh give such huge pumps in the gym, from its vasodilation enhancement through alpha receptors.
 
I know this thread has been dead for years but, if hgh dramatically helps with recovery, wouldn't a healthier more revitalized person be more susceptible to a libido increase in turn possibly creating more erections?
 
Thats a good point actually. 95% of erection problems are all mental anyway so feeling refreshed and strong and generally well should definitely help
 
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