So there are no real threats of going permanently sterile. Interesting.
I also think that with HCG + HMG therapy, you can get those sperm a swimmin once again. HMG stimulates FSH (producing sperm) and upregulates leydig cells, which then get stimulated by HCG, releasing LH and producing more testosterone. I think this is the normal course for male fertilization treatment for someone on TRT/HRT aiming for children.
This is a very interesting article. Quite informative. So, thank you.
However, it should be
kept in mind that we only investigated the effects of natural
testosterone (in form of its enanthate ester), and that the
effects of synthetic or modified androgens may be different.
:twisted::thumbsup:
Journal of Clinical Endocrinology & Metabolism, Vol 77, 1545-1549, Copyright © 1993 by Endocrine Society
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ARTICLES
Failure of combined follicle-stimulating hormone-testosterone administration to initiate and/or maintain spermatogenesis in men with hypogonadotropic hypogonadism [published erratum appears in J Clin Endocrinol Metab 1994 Apr;78(4):846]
G Schaison, J Young, M Pholsena, K Nahoul and B Couzinet
Service d'Endocrinologie et des Maladies de la Reproduction, Hopital Bicetre, Kremlin, France.
In men with hypogonadotropic hypogonadism, prolonged treatment with LH and FSH induces spermatogenesis. To compare the respective role of exogenous testosterone and intratesticular testosterone on the induction and maintenance of spermatogenesis, 10 men with hypogonadotropic hypogonadism and without history of cryptorchidism were studied. They were treated with human gonadotropins (hMG; 150 IU FSH and LH and 1500 IU hCG, im, three times weekly) or pure FSH (150 IU, im, three times a week) and testosterone (T: 250 mg, im, once a week). Five men were treated first with hMG-hCG and then with pure FSH plus T. The other five men started with pure FSH plus T. Each treatment period lasted 24 months. In all men, hMG-hCG induced spermatogenesis after 24 months, with normal motility and quality. The combination of pure FSH and T was not able to induce spermatogenesis after 24 months. In addition, sperm count dropped dramatically to 0.3 +/- 0.1 x 10(6)/mL within 3 months and to 0 after 6 months when pure FSH and T followed [corrected] hMG-hCG. Plasma T levels were increased by both treatments, but significantly more after pure FSH and T (35.3 +/- 5.2 nmol/L) than after hMG-hCG (20.4 +/- 5.2 nmol/L; P < 0.05). Plasma estradiol levels after treatment with pure FSH and T were also increased, but the difference from those obtained during hMG-hCG treatment was not significant. In conclusion, in men with complete gonadotropin deficiency, FSH and exogenous T are not able to induce spermatogenesis. Furthermore, spermatogenesis induced by LH plus FSH (hMG-hCG) cannot be maintained when exogenous T replaced LH in the regimen. Thus, exogenous T is unable to replace LH (and intratesticular T) to induce spermatogenesis. These data are noteworthy in the prospect of male contraception after a complete blockade of gonadotropin activity.
Outcome of gonadotropin therapy for male hypogonadotropic hypogonadism at university affiliated male infertility centers: a 30-year retrospective study.Miyagawa Y, Tsujimura A, Matsumiya K, Takao T, Tohda A, Koga M, Takeyama M, Fujioka H, Takada S, Koide T, Okuyama A.
Department of Urology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.
PMID: 15879837 [PubMed - indexed for MEDLINE]
Long-term administration of hCG/hMG for 12 to 240 months (average 56 +/- 11) resulted in sperm production in only 36% of the small testis subjects but in 71% of the large testis subjects. CONCLUSIONS: Initial TV values provide insight into phenotypic variables such as time of onset and severity in patients with primary or secondary HH, and may predict sperm output in response to hCG/hMG therapy.
Induction of spermatogenesis in idiopathic hypogonadotropic hypogonadism with gonadotropins in older men.Samli MM, Demirbas M, Guler C.
Department of Urology, Afyon Kocatepe University, School of Medicine, Turkey. [email protected]
We investigated the treatment results in 6 azoospermic idiopathic hypogonadotropic hypogonadism (IHH) cases that remained untreated 41-47 years of age. Patients received 1,000 to 5,000 IU hCG, 2-3 times per week, and 75 to 150 IU hMG, 2-3 times per week for 24 months. Testosterone level increased from 2.7 +/- 0.9 mIU/L to 22 +/- 7.04 mIU/L with treatment; testicular volume increased by 4.6 ml during the treatment. Sperm were detected in the ejaculate in 3 out of 6 patients on the 22nd, 18th, and 15th month of treatment. 3 patients underwent testicular biopsy; histopathology revealed tubular hyalinization. Spermatogenesis in older men with IHH was restored by exogenous gonadotropins.
PMID: 15277005 [PubMed - indexed for MEDLINE]
Maintenance of spermatogenesis in hypogonadotropic hypogonadal men with human chorionic gonadotropin alone.Depenbusch M, von Eckardstein S, Simoni M, Nieschlag E.
Institute of Reproductive Medicine of the University, Domagkstr. 11, Munster D-48149, Germany.
OBJECTIVE: It is generally accepted that both gonadotropins LH and FSH are necessary for initiation and maintenance of spermatogenesis. We investigated the relative importance of FSH for the maintenance of spermatogenesis in hypogonadotropic men. SUBJECTS AND METHODS: 13 patients with gonadotropin deficiency due to idiopathic hypogonadotropic hypogonadism (IHH), Kallmann syndrome or pituitary insufficiency were analyzed retrospectively. They had been treated with gonadotropin-releasing hormone (GnRH) (n=1) or human chorionic gonadotropin/human menopausal gonadotropin (hCG/hMG) (n=12) for induction of spermatogenesis. After successful induction of spermatogenesis they were treated with hCG alone for maintenance of secondary sex characteristics and in order to check whether sperm production could be maintained by hCG alone. Serum LH, FSH and testosterone levels, semen parameters and testicular Volume were determined every three to six Months. RESULTS: After spermatogenesis had been successfully induced by treatment with GnRH or hCG/hMG, hCG treatment alone continued for 3-24 Months. After 12 Months under hCG alone, sperm counts decreased gradually but remained present in all patients except one who became azoospermic. Testicular Volume decreased only slightly and reached 87% of the Volume achieved with hCG/hMG. During treatment with hCG alone, FSH and LH levels were suppressed to below the detection limit of the assay. CONCLUSION: Once spermatogenesis is induced in patients with secondary hypogonadism by GnRH or hCG/hMG treatment, it can be maintained in most of the patients qualitatively by hCG alone, in the absence of FSH, for extended periods. However, the decreasing sperm counts indicate that FSH is essential for maintenance of quantitatively normal spermatogenesis.
PMID: 12444893 [PubMed - indexed for MEDLINE]
heres more, i cut them down to make easier to read:
seeing a pattern?
there are a lot more, but my eyes hurt.
seems like when used together they work well. Not 100%, and not right away, but the studies are all done with hypogonadotropic hypogonadism patients. Some studies showed more promise than others. This might be a good way for those that have access to help PREVENT problems with spermatogenesis?
thats great info man! yea i hope it does an even better job at prevention as it does at trying to fix the issue in men with a long term pre existing problem such as hypgonadism....
Looks good but I agree..the concern has seldom been about total sterilization, rather it's mostly been about whether or not your hormonal millieu will ever be the same again which I tend to think it will not if you use repeatedly.
i just wanted to quote this again and make the point to others reading this that it was only done with TEST and this doesnt mean you can take an indefinate oral cycle or even non stop tren or deca or the like and get away with no permanent effects or possible permanent shutdown..... other then that quite an informative read and makes me want to run test all the more... why cant they make it orally bioavailable damnit!?!?!?
Yes, but how does this translate to real world gains and body composition?? I mean, i see juicers every day who are off juice w/ no post cycle therapy, and in all honesty dont lose all that much... and we all know that their body is in a hormonal wreck. If an individual were to use HCG/nolva etc. in a proper post cycle therapy... I dont see the possible slight decrease in endogenous production as really making a difference physique-wise. What do ya'all think? - HTTC
More or less true in my opinion. post cycle therapy is going to help retain a few of those pounds gained during a cycle. I think the bigger reason to use it is to try to offset some of the long term damage that can occur to the hormonal environment..ie prevent severe hypogonadism..but also to prevent the sort of hormonal environment that is conducive to gynecomastia.
Either way, with PCT or without I'm fairly convinced that you are sacrificing normal hormonal function for having muscles. PCT just tries to tip the balance a little more in our favor.