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igf vraag

Kenjie heeft het ook begrepen...:thumbs:
 
Plaatselijke werking is bewezen (door plaatselijk injecties in spier). Systematische IGF, dus circulerend door je bloedbaan heeft geen of een nihile werking op spiergroei.

Suat zei:
Dat heeft normale igf ook niet, het verschil tussen igf1 en igf1-lr3 is de halvewaardetijd.
Naar mijn weten heeft het ook geen plaatselijke werking maar sommigen beweren anders.
 
IGF1 = IGF1 of het nu de lange versie is of niet. Spiercelaanmaak vind alleen plaats door lokaal aangemaakte IGF-1 en niet door IGF-1 vanuit de lever.

Kenjie zei:
Ja ik bedoel IGF Lr3 ,maar dit heeft geen plaatselijkewerking . Doet ook niet de spiercellen groeien dat doen AAS . IGF 1 Lr3 maakt nieuwe spiercellen aan zodat die dan weer kunnen groeien met AAS !
HGH word trouwens grooten deels omgezet in IGF .
 
Elmo zei:
Omdat hij dezelfde verkeerde informatie over IGF post als jij?

Das toch echt je eigen mening,ouwe.

We kunnen blijven steggelen maar je ziet dat ik niet de enige ben die er zo over denkt en ook al is dat k*t voor je....sommige dingen moet je in de praktijk ondervinden voordat je er in gaat geloven.;)
 
IGF-1 is geen massabouwer. Massa bouwen doet het alleen als je er androgenen onder zet. [ErGs] (AnabolicMinds.com, 08-31-2004) Zonder andere middelen doet het niks met de kracht, maar laat het de verhouding spier/vet wel in de richting van spier verschuiven. [ErGs] (AnabolicMinds.com, 06-26-2004)
 
En omdat ik weet dat je van lezen houdt hier nog ff een lekka lappie tekst voor je,Elmo...




IGF-1
(Insulin Like Growth Factor 1 a.k.a. somatomedin C)
IGF1 is a polypeptide hormone about the same size as insulin, or 70 amino acids; it’s a member of the “super family.” No, this is not the same family Clark Kent belongs to, but rather it’s a family of substances identified as growth factors. It’s a highly anabolic hormone released primarily in the liver (but also in peripheral tissues) with the stimulus of Growth Hormone (GH). It is responsible for much of the anabolic activity of GH, including nitrogen retention and protein synthesis (12) as well as muscle cell hyperplasia (increase in number of muscle cells), as well as mitogenesis (the growth of new muscle fibers). It can also induce skeletal muscle hypertrophy by activating the phosphatidylinositol 3-kinase (PI3K)-Akt pathway(9). In fact, IGF-1 acts on several different tissues to enhance growth via several mechanisms. It’s also important to note that GH and IGF-1 are interrelated, they produce a host of divergent effects (5).As you may already know, GH and IGF levels are both elevated dramatically following exercise, and this may be a primary factor in the anabolic effects of weight training. In fact, IGF-1 may be possibly used as an anabolic substitute for GH (2) in many instances. IGF-1 is, therefore, necessary as well as sufficient in muscle growth (anabolic)(1) and has been shown to also be highly anti-catabolic agent as well (2)(3). As with all anabolic substances, IGF-1's anabolic effects are still limited only by the protein (amino acid) supply within muscle cells (6) (7). Thus, as you may expect, IGF works much better when you are eating enough protein.
IGF1 may be of particular interests to athletes, as it may improve their ability to learn new skills and techniques relevant to their sport. You see, IGF is a known neuroprotector and neuropromotor(13)(14)(15), which means new skills could be learned more quickly with IGF use, and for the elderly, some of the cognitive effects of aging could be staved off or possibly halted entirely with administration of IGF1. This also has exciting implications for the medical community studying Alzheimers and other such diseases. This is because there are IGF receptors within the brain (16) and in motor neurons (17).
Also of note, and of special interest to both athletes and bodybuilders who are rehabbing an injury is that IGF is vital to the proper production of connective tissue, and exogenous IGF administration may improve collagen formation and aid in the repair of cartilage. (19)(18). IGF is also vital to proper bone density and bone density regulation (20).
IGF administration may be highly useful for rehabilitation of any kind of joint injury experienced by athletes and bodybuilders, and would greatly decrease recovery time as well as increase the strength of the recovered area.
.
So now we have a basic idea of what IGF does and how it works, so I think we can start looking at how well it works, and what kind of results we can expect from it. While I was (exhaustively) researching this compound, I found a study which provided just the type of answers we are looking for…This study examined the injection of a compound which was responsible for directing overexpression of insulin-like growth factor I (IGF-I) in differentiated muscle fibers. The researchers concluded that IGF-I expression promotes an average increase of 15% in muscle mass and a 14% increase in strength in young adult mice. It’s nice to be able to put some numbers on this compound, huh? But those effects are not all that the researchers have found. IGF also seems to prevent aging-related muscle changes in old adult mice! These old mice experienced a 27% increase in strength as compared with uninjected old muscles. Muscle mass and fiber type distributions were maintained at levels similar to those in young adults. The researchers have speculated that these effects are primarily due to stimulation of muscle regeneration via the activation of satellite cells by IGF-I (8). Regardless of the mechanism of action, the results from this study are pretty exciting. A 15% increase in muscle mass, and a 14% increase in strength are no small increases. Consider this, if you are a typical 100kg (220lb) bodybuilder, you would be a 115kg (250lb) bodybuilder after those kinds of results from IGF-1! If you were a powerlifter who’s best bench press effort was previously 200kgs (440lbs), then you could expect to be able to bench press 500lbs after using IGF1! Ok, so you can’t exactly use that study on mice to justify those numbers, but you get the idea. IGF-1 works and it works very well. Even if we could realistically expect 7% gains in muscle mass and strength (half of the gains experienced in the study), then this drug would be able to blast many bodybuilders and athletes through the plateaus that experienced trainers often endure.
So how can we use this stuff? Well first let’s talk about creating an ideal environment for IGF1 to function. See, as you’ve already read, there is a very great interdependence and synergy between IGF, Insulin, and GH. It has been clearly observed in studies that when GH and IGF1 are used together, you’ll get greater results in the accumulation of Lean Body Mass than you would by using either of them alone (10).In addition, there is a very strong probability that testosterone would be synergistic to GH (4), and would also increase IGF levels in muscle (11).
Let’s take a look at a chart showing what happens when you use IGF-1, IGF-1+GH, or GH alone:
Click Here for full Page Chart.
Changes in body weight, lean body mass, and fat mass 6 and 12 weeks after therapy. Values are the mean changes and 95% Cls. * = significant differences compared with baseline (P < 0.01). The following are the numbers of patients in each treatment group at weeks 6 and 12: recombinant human growth hormone plus insulin-like growth factor 1 (rhGH + rhIGF-1), 13 and 9, respectively; rhGH, 12 and 11, respectively; IGF-1, 1D and 4, respectively; placebo, 14 and 11, respectively(10).
As that chart clearly shows, you will lose more fat and gain more muscle when you combine GH and IGF-1 than you would using either alone. The subjects in this study, over 12 weeks gained around 3kgs of lean mass, and lost around 2kgs of fat. Clearly, when we use IGF, we are going to want to use it with GH. And we know that GH functions best when used in conjunction with testosterone. And since we know that GH increases insulin sensitivity, we can throw in some insulin with that GH….and if we are using insulin and don’t want to get fat, I’d be most comfortable if I could add in a fat burner like T3 with it.
So there we have a laundry list of items essential to get the most out of our IGF use…but lets be honest, if you have the money to use IGF (and IGF is expensive stuff), then you should really be including these other items to maximize it’s effects.
So how much IGF do we use? What kind do we buy? How much will it cost? Well, the most popular type available on the Black Market right now is Lr3igf-1 (Long R3 Insulin-like Growth Factor-I or Long R3IGF-I) which is an 83 amino acid analog of human IGF-I comprising the complete human IGF-I sequence with the substitution of an Arg for the Glu at position 3 (hence R3…clever name, right?), as well as a 13 amino acid extension peptide at the N-terminus. Huh? Well, that all adds up to make Long R3IGF-I significantly more potent (2-3x) than IGF-I in studies, because it has a lower affinity to be rendered inactive by IGF binding proteins (22) (23). Yeah, everything you’ve read about IGF-1 still holds true for this version, but it’s just a bit more active in the body, and hence more potent. Also, it’s basically the only type you can get your hands on at this time…nobody carries the “lesser” versions of it anymore. SO, you’ll pay around $150.00 for 1mg (1000mcgs/mg).
And how much do you use? From the people I’ve spoken to, I’ve noticed that the magic happens between 60mcgs and 120mcgs per day, in divided doses. In general, people who have used less, and even up to 50mcg/day have had mediocre results. People who have used more have suffered headaches and nausea, and generally not much more in the way of results.
References:
1. Hormonal Responses and Adaptations to Resistance Exercise and Training.
Sports Med. 2005;35(4):339-361.
2. Clinical uses of insulin like growth factor I (IGF-I).Ann Intern Med. 1994 Apr 1;120(7):593-601.
3. PROTEIN BREAKDOWN IN MUSCLE FROM BURNED RATS IS BLOCKED BY IGF-I AND GSK-3{beta} INHIBITORS.
Endocrinology. 2005 Mar 31; [Epub ahead of print]
4. Growth Hormone and Testosterone Interact Positively to Enhance Protein and Energy Metabolism in Hypopituitary Men.
Am J Physiol Endocrinol Metab. 2005 Feb 22; [Epub ahead of print]
5. Are the metabolic effects of GH and IGF-I separable?
Growth Horm IGF Res. 2005 Feb;15(1):19-27.
6. Murphy MG, Plunkett LM, Gertz BJ, He W, Wittreich J, Polvino WM, Clemmons DR. MK-677, an orally active growth hormone secretagogue, reverses diet-induced catabolism. J Clin Endocrinol Metab. 83(2):320-5, 1998
7. Fryburg DA, Jahn LA, Hill SA, Oliveras DM, Barrett EJ. Insulin and insulin-like growth factor-I enhance human skeletal muscle protein anabolism during hyperaminoacidemia by different mechanisms. J Clin Invest. 96(4):1722-9, 1995
8. Viral mediated expression of insulin-like growth factor I blocks the aging-related loss of skeletal muscle function.Proc Natl Acad Sci U S A. 1998 Dec 22;95(26):15603-7.
9. Molecular mechanisms modulating muscle mass.
Trends Mol Med. 2003 Aug;9(8):344-50. Review.
10. Recombinant human growth hormone, insulin-like growth factor 1, and combination therapy in AIDS-associated wasting. A randomized, double-blind, placebo-controlled trial.
Ann Intern Med. 1996 Dec 1;125(11):865-72.
11. 3 Am J Physiol Endocrinol Metab. 2002 Mar;282(3):E601-
12. Growth hormone and IGF-I therapy in the hypercatabolic patient.
Baillieres Clin Endocrinol Metab. 1996 Jul;10(3):447-63. Review.
13. IGF-I neuroprotection in the immature brain after hypoxia-ischemia, involvement of Akt and GSK3beta?Eur J Neurosci. 2005 Mar;21(6):1489-502.
14. Interdependence of oestrogen and insulin-like growth factor-I in the brain: potential for analysing neuroprotective mechanisms.
J Endocrinol. 2005 Apr;185(1):11-7.
15. Neuroprotective gene expression profiles in ischemic cortical cultures preconditioned with IGF-1 or bFGF.
Brain Res Mol Brain Res. 2004 Nov 24;131(1-2):33-50.
16. The role of the somatotropic system in cognition and other cerebral functions.
Semin Vasc Med. 2004 May;4(2):167-72. Review.
17. Insulin-like growth factor type 1 prevents hyperglycemia-induced uncoupling protein 3 down-regulation and oxidative stress.
J Neurosci Res. 2004 Jul 15;77(2):285-91.
18. Role of insulin like growth factor-I in repair response in immature cartilage.
Knee. 2005 Apr;12(2):113-9
19. Oxidative stress induces IGF-I receptor sign****g disturbances in cultured human dermal fibroblasts. A possible mechanism for collagen biosynthesis inhibition.
20. Age-related femoral bone loss in men: evidence for hyperparathyroidism and insulin-like growth factor-1 deficiency.J Gerontol A Biol Sci Med Sci. 2004 Dec;59(12):1285-9.
21. Metabolic effects of growth hormone in humans. Metabolism. 1995 Oct;44(10 Suppl 4):33-6.
22. IGF-I variants which bind poorly to IGF-binding proteins show more potent and prolonged hypoglycaemic action than native IGF-I in pigs and marmoset monkeys.J Endocrinol. 1997 Nov;155(2):377-86.
23. In vivo actions of IGF analogues with poor affinities for IGFBPs: metabolic and growth effects in pigs of different ages and GH responsiveness.
Prog Growth Factor Res. 1995;6(2-4):385-95. Review.
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En er wordt nergens gerept over dat je zou MOETEN spot injecten...logisch ook want de igf wordt gewoon opgenomen zoals ook je hgh opgenomen wordt en het werkt dus gewoon overal waar wat kan groeien....

Er zijn wel discussies over welke manier nou beter is maar er is gewoon absoluut geen sprake dat igf-1 niet zou werken als je het subcutaan zou zetten....pure onzin!!

HGH en IGF-1 zorgen voor nieuwe spiercellen en splitsen die weer en de a.s zorgen dat ze opgevuld worden dus het gaat ten aller tijde om de COMBI van het gehele plaatje....synergie,mijn waarde vriend.
 
Synergy...da's zoiets als testo en DBC aan één tafel...kon je dat maar injecteren! :D
 
  • Topic Starter Topic Starter
  • #34
blahblah die 30+ ers vervuilen mijn topic....
jullie tijd is geweest jongens....maak plaats voor de jeugd;)
 
Die 30+ers kunnen jou nog een hoop leren,gab....:p

Die hebben namelijk en de theoretische kennis maar nog veel belangrijker....OOK de ervaring met alle producten dus tsja.....ik zou het wel weten.:D
 
@ Testo

Effe beter lezen mijn vriend en niet zomaar klakkeloos stukjes over nemen van het Anabolic Review Forum. http://forums.steroid.com/showthread.php?t=199823

En als je goed had gelezen ipv meteen te dingen klakkeloos over aan te nemen dan zou je ook kunnen constateren dat de enige onderzoeken die onomstotelijk bewijzen dat eventuele spiergroei door IGF-1 alleen door SPOTINJECTIONS worden bereikt:

So now we have a basic idea of what IGF does and how it works, so I think we can start looking at how well it works, and what kind of results we can expect from it. While I was (exhaustively) researching this compound, I found a study which provided just the type of answers we are looking for…This study examined the injection of a compound which was responsible for directing overexpression of insulin-like growth factor I (IGF-I) in differentiated muscle fibers. The researchers concluded that IGF-I expression promotes an average increase of 15% in muscle mass and a 14% increase in strength in young adult mice. It’s nice to be able to put some numbers on this compound, huh? But those effects are not all that the researchers have found. IGF also seems to prevent aging-related muscle changes in old adult mice! These old mice experienced a 27% increase in strength as compared with uninjected old muscles. Muscle mass and fiber type distributions were maintained at levels similar to those in young adults. The researchers have speculated that these effects are primarily due to stimulation of muscle regeneration via the activation of satellite cells by IGF-I (8). Regardless of the mechanism of action, the results from this study are pretty exciting. A 15% increase in muscle mass, and a 14% increase in strength are no small increases. Consider this, if you are a typical 100kg (220lb) bodybuilder, you would be a 115kg (250lb) bodybuilder after those kinds of results from IGF-1! If you were a powerlifter who’s best bench press effort was previously 200kgs (440lbs), then you could expect to be able to bench press 500lbs after using IGF1! Ok, so you can’t exactly use that study on mice to justify those numbers, but you get the idea. IGF-1 works and it works very well. Even if we could realistically expect 7% gains in muscle mass and strength (half of the gains experienced in the study), then this drug would be able to blast many bodybuilders and athletes through the plateaus that experienced trainers often endure.

Juist ja, IGF-1 in de spieren geinjecteerd! Ook wel spotinjections genoemd

Dus lees nu nog eens jouw onderstaande quote en constateer nu eens zelf dat je er naast zit.

Testo zei:
En er wordt nergens gerept over dat je zou MOETEN spot injecten...logisch ook want de igf wordt gewoon opgenomen zoals ook je hgh opgenomen wordt en het werkt dus gewoon overal waar wat kan groeien....
Er zijn wel discussies over welke manier nou beter is maar er is gewoon absoluut geen sprake dat igf-1 niet zou werken als je het subcutaan zou zetten....pure onzin!!
HGH en IGF-1 zorgen voor nieuwe spiercellen en splitsen die weer en de a.s zorgen dat ze opgevuld worden dus het gaat ten aller tijde om de COMBI van het gehele plaatje....synergie,mijn waarde vriend.

Daarnaast maakt de schrijver van het door jouw aangehaalde artikelen enkele basischoolfouten die het niveau van het artikel aangeven. Deze bijvoorbeeld:
A 15% increase in muscle mass, and a 14% increase in strength are no small increases. Consider this, if you are a typical 100kg (220lb) bodybuilder, you would be a 115kg (250lb) bodybuilder after those kinds of results from IGF-1!

Dus als je spiermassa met 15% groeit, dan wordt een bodybuilder van 100 kilo plots 115 kilo volgens de schrijver! Nu dacht ik dat een mens ook uit water, bindweefsel, orgaanmassa en vet bestond! Maar nee hoor, schijnbaar bestaan er bodybuilders die voor 100% uit spier bestaan en na 15% groei op 115 kilo pure spier uitkomen! D'as pas ripped!

Eerst leren lezen Testo, dan een mening vormen en vervolgens posten kerel!
 
Laatst bewerkt:
Er is trouwens wel degelijk een verschil of je nu de lang of kortwerkende IGF zet als je spotinjections doet!!!
 
Elmo zei:
@ Testo
Effe beter lezen mijn vriend en niet zomaar klakkeloos stukjes over nemen van het Anabolic Review Forum. http://forums.steroid.com/showthread.php?t=199823
En als je goed had gelezen ipv meteen te dingen klakkeloos over aan te nemen dan zou je ook kunnen constateren dat de enige onderzoeken die onomstotelijk bewijzen dat eventuele spiergroei door IGF-1 alleen door SPOTINJECTIONS worden bereikt:
Juist ja, IGF-1 in de spieren geinjecteerd! Ook wel spotinjections genoemd


het artikel wat je hier aanhaalt van anthony roberts gaat over huIGF-1 en niet over lr3,wat het enige zou moeten zijn dat je gebruikt. huIGF-1 moest inderdaad plaatselijk in de spier net getraind gezet worden in "kleine" hoeveelheden enkele malen achter elkaar dit door de zeer korte halflife. de lr3 die we tegenwoordig gebruiken bind echter zo slecht aan de igf binding protein dat z'n halflife van ongeveer 6 uur ruim genoeg is om de igf door het hele lichaam te laten komen.hierdoor hoeft het dus ook niet plaatselijk gezet te worden maar kan je gewoon met een insuline spuitje het zetten waar je wil. kies dus een plaats uit waar je dan ook met een insuline spuit IM kan komen,ik geef zelf de voorkeur aan de biceps. ik wissel gewoon af van links naar rechts.

-rodge
 
Elmo zei:
IGF subcutaan helpt niet voor spiergroei.


subq. helpt wel degelijk voor spiergroei maar aangezien lr3 igf-1 ongeveer 50% van de insuline achtige eigenschappen heeft is het dus wijs om het pwo IM te zetten zodat je dan ook volledig gebruikt maakt van deze eigenschap.

-rodge
 
Bedankt voor het bijstaan want dat was ik idd vergeten te melden in mn post,check tijdstip van posten,ik was niet erg wakker meer...

Het gaat met spotinjections over de oude igf-1 en niet over de l3 versie,staat er ook in....

Maar Elmo,ga eerst eens zelf proberen want je denkt wel te weten waarover je lult maar het enige wat je verkondigd is theorie en ik ken de praktijk.

Er zijn genoeg mensen die het met me eens zijn simpelweg omdat ze het geprobeerd hebben of omdat je wijzer zijn dan jij want jij WIL het gewoon niet snappen omdat je dan bakzijl moet halen en dat tast je ego aan.

Ik ga niet nog meer van mn kostbare tijd besteden om ellenlange artikels te lezen omdat ik al weet waarover ik praat....ervaring,jongen....komt met de jaren.;)
 
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