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Mind and Muscle Forums > Chemically Correct > Anabolics & Performance Enhancers
Heavy_Lifter85
J Heart Lung Transplant. 2008 Apr;27(4):457-61.Links
Clenbuterol increases lean muscle mass but not endurance in patients with chronic heart failure.
Kamalakkannan G, Petrilli CM, George I, LaManca J, McLaughlin BT, Shane E, Mancini DM, Maybaum S.

Division of Cardiology, Department of Medicine, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York, USA.

Clenbuterol, a beta(2)-agonist with potent anabolic properties, has been shown to improve skeletal muscle function in healthy subjects, and in high doses, promotes cardiac recovery in patients with left ventricular assist devices. In a small, randomized controlled study, we investigated the effect of clenbuterol on skeletal muscle function, cardiac function, and exercise capacity in patients with chronic heart failure. Clenbuterol was well tolerated and led to a significant increase in both lean mass and the lean/fat ratio. Maximal strength increased significantly with both clenbuterol (27%) and placebo (14%); however, endurance and exercise duration decreased after clenbuterol. Prior data support combining exercise training with clenbuterol to maximize performance, and on-going studies will evaluate this approach.
eclypz
Shows how much I know but I'd have thought a beta agonist would be very contraindicated in someone with any sort of heart failure. Or is it their heart is too weak and needs more juice?
Colin
I was under the impression that clen caused heart cell death.

At any rate,it is documented to increase appetite so using it for weight loss kind of sucks in that regard.
zuper1
QUOTE (Colin @ Apr 6 2008, 06:00 PM) *
At any rate,it is documented to increase appetite so using it for weight loss kind of sucks in that regard.

So Clen,isn't for far loss..?
Mr.Kite
QUOTE (zuper1 @ Apr 6 2008, 03:24 PM) *
So Clen,isn't for far loss..?

Yes it is. There is merely the possibility of increased appetite which is the opposite of what you want when dieting, unless you have superhuman will power.
dashforce
I think it's usually administered to cardiac patients along with a B1 blocker, which is the receptor responsible for some of the negative sides. Important to remember that clen is a (relatively) selective B2 agonist
zuper1
I've never experienced appetite increase from Clen,though I've used little of..

I 'm suprised..cause Clen supposes to be the strongest after DNP fat loss drug.Not sure about the coherence though but definetely Clen is marked as one of the hard-core fat loss drugs.
D-termine
I've never noticed increased appetite, however I definitely have noticed strength increases while on it. They don't persist but it's nice to get that boost when you're cutting pretty hard. I also have had this reported to me from friends running it as well. Too bad my former 200mcg tolerance is down to around a max of 60-80mcg daily. Damn
Mitosis
I get hungry as a pig on clen....

Until I made a topical. It is marked for fat loss....but it is also used in PCT to help maintain gains by many. Added to IGF-1 or HGH with a serm post cycle, you can really keep gains or even make them.

Doesnt it lower mTOR?
rpen22
QUOTE (Mitosis @ Apr 8 2008, 06:11 PM) *
Doesnt it lower mTOR?

I believe it activates mTOR.

QUOTE
In summary, the present findings demonstrate that the 2-adrenergic agonist clenbuterol does activate Akt and its downstream effector mTOR. Activation of mTOR and its downstream targets 4E-BP1 and S6K1 can lead to increases in protein translation and could explain previous findings of increased protein synthesis following clenbuterol treatment. The ability of clenbuterol to repress MuRF1 and MAFbx transcripts and components of the ubiquitin proteosome pathways (48) suggests that clenbuterol can also affect protein degradation. The findings suggest that activation of mTOR is critical for clenbuterol-induced muscle growth in normal animals and muscle sparing during unloading. The mechanism through which clenbuterol activates mTOR is likely through the activation of Akt, although other mechanisms cannot be ruled out. We postulate that Akt is activated through Gi-G-PI3-kinase signaling pathways (see Fig. 8), similar to what occurs in cardiac tissue. Additional experiments are required to determine whether PI3-kinase is activated by clenbuterol and responsible for the activation of Akt. Further analysis is also needed to parse out the roles of the Akt/mTOR and Gs-AC-cAMP pathways in mediating the actions of clenbuterol in skeletal muscle. It is clear from the data that multiple pathways mediate the effects of clenbuterol in skeletal muscle. A better understanding of the actions of 2-adrenergic receptor agonists in skeletal muscle could lead to the development of compounds to treat muscle atrophy.


Rapamycin inhibits the growth and muscle-sparing effects of clenbuterol.
PMID: 17068216
D-termine
I second the use of Clen in your post cycle, def has seemed to help me in the past. Hopefully 6 months of abstaining will clean up my receptors for this summer.
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