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Thread: IGF by itself?

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    powerliftmike's Avatar
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    IGF by itself?

    Can you successfully run IGF alone or with AASs? I read that it greatly lowers GH production and so exogenous GH is needed...

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    rodge's Avatar
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    no need for hgh while on lr3. i've run it by it self,with aas, with hgh and with both of them and i can honostly say that you will see some nice gains from running it alone if diet is in check(high protein).ofcourse when combined you will def notice some synergie.

    -rodge

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    powerliftmike's Avatar
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    Quote Originally Posted by rodge nl.
    no need for hgh while on lr3. i've run it by it self,with aas, with hgh and with both of them and i can honostly say that you will see some nice gains from running it alone if diet is in check(high protein).ofcourse when combined you will def notice some synergie.

    -rodge
    thanks bro. Have you noticed any gut enlargement due to intestinal growth? I read that the intestines have the most IGF receptors of anything else.

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    I read a study that said LR3 IGF-1 did not cause negative feedback on the HGH pulse, but as all the studies on LR3 IGF-1 it was done on an animal, so it's only a possibility for humans, not solid proof.

    JohnnyB

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    Quote Originally Posted by powerliftmike
    thanks bro. Have you noticed any gut enlargement due to intestinal growth? I read that the intestines have the most IGF receptors of anything else.
    It's IGF-II that causes the growth and HGH will raise IGF-II

    JohnnyB

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    oswaldosalcedo's Avatar
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    Quote Originally Posted by powerliftmike
    Can you successfully run IGF alone or with AASs? I read that it greatly lowers GH production and so exogenous GH is needed...
    dear powerliftmike
    facts for you:

    "IGF-1 establishes a negative feedback loop in inhibiting the secretion of growth hormone . This, in turn, reduces the secretion of GHRH (growth hormone releasing hormone ) and stimulates the release of Somatostatin in the hypothalamus. Serum levels of IGF-1 are also modulated by Prolactin , placental lactogen, thyroid hormones and steroids which act, at least in part, by influencing growth hormone levels. IGF-1 is therefore responsible for many, if not all, growth-promoting activities ascribed to Growth hormone . "

    gh gut?
    ------------------------------------

    at:
    http://www.copewithcytokines.de/cope.cgi?004961
    Last edited by oswaldosalcedo; 10-27-2005 at 11:22 AM.

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    Quote Originally Posted by oswaldosalcedo
    dear powerliftmike
    facts for you:

    IGF-1 establishes a negative feedback loop in inhibiting the secretion of growth hormone . This, in turn, reduces the secretion of GHRH (growth hormone releasing hormone ) and stimulates the release of Somatostatin in the hypothalamus. Serum levels of IGF-1 are also modulated by Prolactin , placental lactogen, thyroid hormones and steroids which act, at least in part, by influencing growth hormone levels. IGF-1 is therefore responsible for many, if not all, growth-promoting activities ascribed to Growth hormone .

    at:
    http://www.copewithcytokines.de/cope.cgi?004961
    Bro that study is on IGF-1, not LR3 IGF-1 which I'm talking about.

    JohnnyB

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    I want to add, that I did say it was done in animals and wasn't solid eveidence that it wouldn't happen in humans.

    JohnnyB

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    Quote Originally Posted by JohnnyB
    I want to add, that I did say it was done in animals and wasn't solid eveidence that it wouldn't happen in humans.

    JohnnyB

    he asked for igf .....lol......... (just kidding).

    relax johnny!
    Last edited by oswaldosalcedo; 10-27-2005 at 11:27 AM.

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    Quote Originally Posted by oswaldosalcedo
    he asked for igf .....lol......... (just kidding).

    relax johnny!
    Haha. I guess I meant to say LR3 since it would provide a slow bloodstream release. So no gut growth from IGF-I, just from IGF-II which is enhanced by rhGH administration? Can you buy IGF-II?

  11. #11
    oswaldosalcedo's Avatar
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    Quote Originally Posted by powerliftmike
    Haha. I guess I meant to say LR3 since it would provide a slow bloodstream release. So no gut growth from IGF-I, just from IGF-II which is enhanced by rhGH administration? Can you buy IGF-II?
    i stated that any variant of igf produces belly at:

    Roid gut from LR3 IGF1, IGF 1, IGF 2.
    Roid gut from LR3 IGF1, IGF 1, IGF 2.

    and

    post 19 at:

    By using IGF-1 will it make my brain release IGF-2?
    By using IGF-1 will it make my brain release IGF-2?

    and:
    IGF-2 causes small intenstinal growth?
    IGF-2 causes small intenstinal growth?

    neither hgh converts in igf1 nor igf 2
    and gut growth is from any variant,but no human studies yet.

    "BODY GROWTH, CARCASS COMPOSITION, AND ENDOCRINE
    CHANGES IN LAMBS CHRONICALLY TREATED WITH
    RECOMBINANTLY DERIVED INSULIN -LIKE GROWTH FACTOR-1

    YVETTE H. COTTAM, HUGH T. BLAIR, BRIAN W. GALLAHER,
    ROGER W. PURCHAS, BERNHARD H. BREIER, STUART N. MCCUTCHEON, AND PETER D. GLUCKMAN

    male sheeps were treated for 8 weeks with either 50 mcg/kg body wt/8 hourly SC insulin-like growth factor-I (IGF-I) (n = 10) or with saline (n = 9). IGF-I treatment increased plasma IGF-I from 235 + 17 to 347 + 16 rig/ml (P < 0.001).

    suggesting that in the well fed animal with an intact somatotropic
    axis IGF-I treatment at doses which double plasma IGFI
    does not enhance somatic growth performance. However, the
    marked splenomegaly shows the sensitivity of splenic growth to
    systemic IGF-I. The suppression of insulin with chronic IGF-I
    treatment was accompanied by hyperglycaemia-this may explain
    in part the lack of a significant anabolic response and may
    limit the utility of IGF-I therapy unless higher doses with
    insulin-like effects are used. (Endocrinology 130: 2924-2930)….

    …..In conclusion, exogenous IGF-I administered at physiological
    doses did not exert marked effects on body wt
    gain, carcass dimensions, or body composition in intact,
    growing, and well-fed yearling sheep. It had some marked
    endocrine and metabolic effects, however, including
    suppression of plasma insulin, IGFBP-2, and induced
    hyperglycaemia. Marked splenomegaly was also noted.
    These changes must be borne in mind in considering any
    possible therapeutic use of IGF-I. While IGF-I treatment
    in this study did not cause a major somatogenic response
    in well fed normally growing animals, higher doses of
    IGF-I may be more effective. However, under more severe
    conditions such as undernutrition, when GH resistance
    occurs (44) IGF-I is a more effective anabolic agonist…..

    Organ- control- igf 1 treated

    Heart 232.0 +/- 11.0 ------- 230.4 +/ 10.4
    Liver 1005.9 +/- 48.5 ----- 1027.0 +/- 45.9
    Spleen 78.8 +/- 4.6 ------ 114.6 +/- 4.4 (50 %)
    Lungs 502.6 +/- 29.9 ------ 515.1+/- 28.3
    Kidneys 131.8 +/- 5.3 ------ 145.6 +/- 5.0"


    and:
    Am J Physiol Gastrointest Liver Physiol 266: G1090-G1098
    Prolonged administration of IGF peptides enhances growth of gastrointestinal tissues in normal rats

    C. B. Steeb, J. F. Trahair, F. M. Tomas and L. C. Read
    Cooperative Research Center for Tissue Growth and Repair, North Adelaide, South Australia.

    To investigate the effect of insulin-like growth factor (IGF) peptide infusion on the gastrointestinal tract, female rats (115 g, 6/group) were treated for 14 days with IGF-I or long R (LR3IGF-I; 0, 44, 111, or 278 micrograms/day) delivered by osmotic minipumps. Both peptides induced a dose-dependent increase in gastrointestinal tissue weight. Total gut weight, small intestinal weight, and small intestinal length increased by 43, 47, and 13%, respectively, after treatment with 278 micrograms/day of LR3IGF-I. Crypt depth and villus height increased after peptide treatment with an associated increased crypt cell population (+33%), cells per villus column (+34%), and villus cell density (+20%). Proportional increments in proliferating cell nuclear antigen labeling and an unaltered crypt growth fraction indicated that the balance between the proliferative and maturation compartment of the crypt was maintained. Fecal nitrogen excretion was significantly reduced in rats treated with LR3IGF-I, suggesting an increased absorptive capacity of the duodenum. The enhanced potency of LR3IGF-I supports previous findings that the gut is especially responsive to analogues with reduced binding affinity to IGF-binding proteins.

    and yes you can buy igf2, but is senseless.

    see
    igf classes:
    Hardgainers part 2 a must read The Skinny Bastard Diet
    Last edited by oswaldosalcedo; 10-27-2005 at 12:35 PM.

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    powerliftmike's Avatar
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    Thanks bro. Has anyone here had problems with gut growth?

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    Muscle_4_Hire is offline Associate Member
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    I'm using IGF LR3 right now and its helped a lot in my powerlifting stage right now. Squats and deadlifts and be pretty hard on your joints so the extra cushioning is really helping. No roid gut. IGF-II is sometimes called fetal growth factor because its primarily experienced during and after birth. Normally, adults will experience little or no IGF-II and experience only IGF-I. Oh, and yes you can buy IGF-II online... there are a lot of labs that sell growth factors.

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    powerliftmike's Avatar
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    Quote Originally Posted by Muscle_4_Hire
    I'm using IGF LR3 right now and its helped a lot in my powerlifting stage right now. Squats and deadlifts and be pretty hard on your joints so the extra cushioning is really helping. No roid gut. IGF-II is sometimes called fetal growth factor because its primarily experienced during and after birth. Normally, adults will experience little or no IGF-II and experience only IGF-I. Oh, and yes you can buy IGF-II online... there are a lot of labs that sell growth factors.
    Ok, thanks man.

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    Quote Originally Posted by oswaldosalcedo
    he asked for igf .....lol......... (just kidding).

    relax johnny!
    You're right Bro, that is the problem, people say IGF-1 when they mean LR3 IGF-1, that's where a lot of confusion comes in. So I see your point, he said IGF-1, you post a study on IGF-1. I interpreted it to say LR3 IGF-1 and answered from that interpretation.

    I don't know anyone on this board or any others that actually use rhIGF-1 or IGF-1. I've only seen a handful of question on those, but no one has actually used it that I know of

    I'm always relaxed, well most of the time

    JohnnyB

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