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11-07-2006, 09:58 AM #41Originally Posted by perfectbeast2001
Not saying that I total disagree with Clen use, but there are some serious side effect potential. Which is why I have personally decided never to use it again."without your word you're a shell of a man" - Tupac
***Giants11 is a fictional character any advice given is purely for entertainment purposes, always consult a physician before taking any supplements, drugs or changing your diet.***
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11-07-2006, 10:30 AM #42
I am very interested in any sides that you know of that are not listed here. please post some details. Thanks.
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11-07-2006, 10:52 AM #43
Here you go:
Myotoxic effects of clenbuterol in the rat heart and soleus muscle.
Burniston JG, Ng Y, Clark WA, Colyer J, Tan LB, Goldspink DF.
Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool L3 2ET, United Kingdom. [email protected]
Myocyte-specific necrosis in the heart and soleus muscle of adult male Wistar rats was investigated in response to a single subcutaneous injection of the anabolic beta(2)-adrenergic receptor agonist clenbuterol. Necrosis was immunohistochemically detected by administration of a myosin antibody 1 h before the clenbuterol challenge and quantified by using image analysis. clenbuterol-induced myocyte necrosis occurred against a background of zero damage in control muscles. In the heart, the clenbuterol-induced necrosis was not uniform, being more abundant in the left subendocardium and peaking 2.4 mm from the apex. After position (2.4 mm from the apex), dose (5 mg clenbuterol/kg), and sampling time (12 h) were optimized, maximum cardiomyocyte necrosis was found to be 1.0 +/- 0.2%. In response to the same parameters (i.e., 5 mg of clenbuterol and sampled at 12 h), skeletal myocyte necrosis was 4.4 +/- 0.8% in the soleus. These data show significant myocyte-specific necrosis in the heart and skeletal muscle of the rat. Such irreversible damage in the heart suggests that clenbuterol may be damaging to long-term health.
PMID: 12381771 [PubMed - indexed for MEDLINE]
Characterization of adrenoceptor involvement in skeletal and cardiac myotoxicity Induced by sympathomimetic agents: toward a new bioassay for beta-blockers.
Tan LB, Burniston JG, Clark WA, Ng Y, Goldspink DF.
Academic Unit of Molecular Vascular Medicine, University of Leeds, England.
Excessive levels of catecholamines have long been known to be cardiotoxic, but less well known are their toxic effects on skeletal muscle. By using an antimyosin monoclonal antibody and quantitative methods to measure the extent of myocyte necrosis, and by employing modulators of adrenoceptors (ARs), including clenbuterol, bupranolol, propranolol, bisoprolol, atenolol, ICI-118551, phenoxybenzamine, prazosin, and yohimbine, the involvement of ARs in isoproterenol-induced myotoxicity was characterized. In the myocardium, the toxic effects were predominantly mediated via the beta(1)-ARs. In the soleus muscle, it was almost solely via the beta(2)-ARs. Myotoxicity was also observed in the myocardium when challenged with the beta(2)-AR agonist clenbuterol. This was found to be mediated via sympathetic presynaptic beta(2)-ARs, leading to enhanced release of norepinephrine. This effect was abolished by prior treatment with reserpine. The skeletal muscle was found to be more sensitive to the myotoxic effects than cardiac muscle at lower doses of beta-AR agonists. These experiments introduce a new way of assaying beta-AR antagonists by classifying them according to their ability to prevent catecholamine-induced myotoxicity. Further research along these lines may deepen understanding of which beta-blockers work best in heart failure therapy.
PMID: 12658052 [PubMed - indexed for MEDLINE]
Dose-dependent separation of the hypertrophic and myotoxic effects of the beta(2)-adrenergic receptor agonist clenbuterol in rat striated muscles.
Burniston JG, Clark WA, Tan LB, Goldspink DF.
Research Institute for Sport & Exercise Sciences, Liverpool John Moores University, Webster Street, Liverpool L3 2ET, UK.
Muscle growth in response to large doses (milligrams per kilogram) of beta(2)-adrenergic receptor agonists has been reported consistently. However, such doses may also induce myocyte death in the heart and skeletal muscles and hence may not be safe doses for humans. We report the hypertrophic and myotoxic effects of different doses of clenbuterol. Rats were infused with clenbuterol (range, 1 mug to 1 mg.kg(-1)) for 14 days. Muscle protein content, myofiber cross-sectional area, and myocyte death were then investigated. Infusions of >/=10 mug.kg(-1).d(-1) of clenbuterol significantly (P < 0.05) increased the protein content of the heart (12%-15%), soleus (12%), plantaris (18%-29%), and tibialis anterior (11%-22%) muscles, with concomitant myofiber hypertrophy. Larger doses (100 mug or 1 mg) induced significant (P < 0.05) myocyte death in the soleus (peak 0.2 +/- 0.1% apoptosis), diaphragm (peak 0.15 +/- 0.1% apoptosis), and plantaris (peak 0.3 +/- 0.05% necrosis), and significantly increased the area fraction of collagen in the myocardium. These data show that the low dose of 10 mug.kg(-1).d(-1) can be used in rats to investigate the anabolic effects of clenbuterol in the absence of myocyte death. Muscle Nerve, 2006."without your word you're a shell of a man" - Tupac
***Giants11 is a fictional character any advice given is purely for entertainment purposes, always consult a physician before taking any supplements, drugs or changing your diet.***
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11-07-2006, 12:10 PM #44
Thanks Giants. So in a nutshell for al the people who are not scientifically minded (like me)! There is a possibility that clen use can have long term adverse affects on cardiovascular health.
Were all these studies done on rats? How would the dosages used on the rats compare to human dosages?
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11-07-2006, 12:13 PM #45
Forgetting the rat<>human thing, I think that most humans woudl use clen at about the 100mcg level.
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11-07-2006, 12:16 PM #46
The highlighted part up top:
These data show that the low dose of 10 mug.kg(-1).d(-1) can be used in rats to investigate the anabolic effects of clenbuterol in the absence of myocyte death
Shows that it can cause heart cell death at 10mcg per Kg.
Which would be about a 100mcg dose for a human.
Granted this is not set in stone, it just a risk I personally will not take."without your word you're a shell of a man" - Tupac
***Giants11 is a fictional character any advice given is purely for entertainment purposes, always consult a physician before taking any supplements, drugs or changing your diet.***
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11-07-2006, 12:42 PM #47
i would imagine that the effects are not perminent.
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11-07-2006, 12:46 PM #48Originally Posted by 1819
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11-07-2006, 12:47 PM #49Originally Posted by helium3"without your word you're a shell of a man" - Tupac
***Giants11 is a fictional character any advice given is purely for entertainment purposes, always consult a physician before taking any supplements, drugs or changing your diet.***
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11-07-2006, 12:53 PM #50
Good stuff. Well done.
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11-07-2006, 01:37 PM #51
thanks again giants that definately gives us food for thought.
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11-07-2006, 02:02 PM #52Originally Posted by Giants11
I muffed my math above (thought humans took mg, not mcg doses). For our legendary example of the 100kg (220 pound) human that "safe" dose would be 10*100, or 1000mcg, about 10X what most take, or in other words the usual 100mcg for the 100kg human would be a dose of 1mcg/kg - 1/10th the "safe" dose.
Of course, that is "safe" in rats.
But if you figure that their "low" dose was 10X what we take, and the next dose was 10X that, or 100X what we take...as long as I watch my BP I am not really so afraid.
Can you imagine taking 100X the usual dose of clen a day for two weeks?
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11-07-2006, 05:39 PM #53
great post beast. It should be a sticky. I have a question though....
Somebody told me that In His Opinion " people with high B/F should not use Clenbuterol . Obviously you do not feel the same way right? I am 20yrs, 220lbs, 16-19% B/F.
I have done only (1) other cycle of Tren and Winny (but I believe that both of those compounds were seriously underdosed and I did not see any results after about 6 wks and I discontinued use.
Soon (within the next couple of months) I plan on doing another cycle (real AAS this time: MNFG is B****sh D****n)
Cycle:
TEST CYPIONATE - 400mgs/wk for 10wks
PROVIRON - 25mgs/ed for 10wks
Nolvadex - 10mg/ed for 10wks (and 18 days before PCT)
PCT:
Clomid- 300/day 1
100mg/ed for days 2-11
50mg/ed for days 12-25
Nolvadex- 10mg/ed for 20-30 days(about 40-45 days in all after last inj.)
Seem like a good cycle? I am trying to inform you as much as possible so you can help me.
I believe that you said that you had used Clen while you were using AAS in order to retain muscle. Would that be a good idea for me being that this is only my 2nd cycle (1st real cycle)??? should I maybe use the Clen before I even start using my AAS cycle ?? Or should I include it into my PCT somehow??? Should I try cutting with Clen/Winstrol /EQ/Primobolan ect.... before I even think about taking TEST????
My first priority is dropping B/F! Another person told me that I shouldn't even use AAS until I get my B/F into single digits b/c of aromatization possibilities which I think is absurd. What is your opinion on that??
Any advice/suggestions/opinions you can provide me will be much appreciated. I am kind of lost here on what i should do or what my options would be. Thanks beast.
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11-07-2006, 05:48 PM #54
Well I cant see any problem with using clen with high BF. The important thing is that you have got your diet spot on and lost a substantial ammount of fat with it before resorting to drugs. Diet and cardio are THE most useful tools we have in the fight against flab. Only when results start to decline as the body becomes accustomed to the cardio and lack of cals would i suggest adding clen.
I have used clen during a cutting cycle and I am currently using it for PCT. I found both to be effective.
At 20yrs old i would not reccomend you use AS at all. You should be able to make the most of your natural test levels and make some great muscle gains without drugs at your age. If you are looking to cut up then AS is not going to help you. Sort out your diet and training and then maybe look at clen or ECA/Y. Good luck
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11-07-2006, 06:44 PM #55Originally Posted by perfectbeast2001
Last edited by BGIZZLE8629; 11-07-2006 at 06:47 PM.
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11-07-2006, 06:48 PM #56
Oh, and what is ECA?? Is that like Hydroxycut or something?
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11-07-2006, 11:17 PM #57New Member
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FINALLY a breakdown of clen and how to use it, with no scientific vocab. Thanks alot, much appreciated
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11-07-2006, 11:26 PM #58
Ephedra
Caffeine
Aspirin
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11-08-2006, 08:49 AM #59Originally Posted by vermin
Yup you are right....
My head was in the clouds yesterday, here is the study that shows heart cell death at low doses:
clenbuterol and apoptosis
J Appl Physiol. 2004 Dec 10; [Epub ahead of print] Related Articles, Links
{beta}2-Adrenergic receptor stimulation in vivo induces apoptosis in the rat heart and soleus muscle.
Burniston JG, Tan LB, Goldspink DF.
Research Institute for Sports and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom.
High doses of the beta2-adrenergic receptor (AR) agonist, clenbuterol, can induce necrotic myocyte death in the heart and slow-twitch skeletal muscle of the rat. However, it is not known if this agent can also induce myocyte apoptosis and whether this would occur at a lower dose than previously reported for myocyte necrosis. Male Wistar rats were given single subcutaneous injections of clenbuterol. Immunohistochemistry was used to detect myocyte specific apoptosis (detected on cryosections using a caspase 3 antibody and confirmed using annexin V, single-strand DNA labelling and TUNEL). Myocyte apoptosis was first detected at 2 h, and peaked 4 h after clenbuterol administration. The lowest dose of clenbuterol to induce cardiomyocyte apoptosis was 1 microg kg(-1), with peak apoptosis (0.35 +/- 0.005 %; P<0.05) occurring in response to 5 mg kg(-1). In the soleus, peak apoptosis (5.8 +/- 2 %; P<0.05) was induced by the lower dose of 10 microg kg(-1). Cardiomyocyte apoptosis occurred throughout the ventricles, atria and papillary muscles. However, this damage was most abundant in the left ventricular subendocardium at a point 1.6 mm, that is, approximately one-quarter of the way from the apex towards the base. beta-AR antagonism (involving propranolol, bisoprolol or ICI 118,551) or reserpine was used to show that clenbuterol-induced myocardial apoptosis was mediated through neuromodulation of the sympathetic system and the cardiomyocyte beta1-AR, whereas in the soleus direct stimulation of the myocyte beta2-AR was involved. These data show that when administered in vivo, beta2-AR stimulation by clenbuterol is detrimental to cardiac and skeletal muscles even at low doses, by inducing apoptosis through beta1- and beta2-AR, respectively."without your word you're a shell of a man" - Tupac
***Giants11 is a fictional character any advice given is purely for entertainment purposes, always consult a physician before taking any supplements, drugs or changing your diet.***
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11-08-2006, 09:28 AM #60Banned
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Good posts gaints.I have said this before and will say it again....DNP in male use is safer than clen .Doing a few clen cycles is ok,it`s the regular use that concerns me.Let`s look at DNP:
DNP does not cause liver damage: "Their analyses demonstrate, beyond a doubt, that the liver does not suffer any damage in the course of dinitro treatment." (Biological Study of Dinitro Drugs in Humans By Dr. Jacques Bell. Bell, Jacques. 1939. Etude biologique des produits dinitres chez l'homme. Medecine. 19:749-54. Translation © 1996 Robert Ames)
Also: "Experimental studies on animals do not show toxic effects of dinitrophenol on the kidney. Anatomical-pathological examinations of animals, even those which died from a massive dose of dinitrophenol, do not reveal any important anatomical changes, except a small degree of cytolysis. Clinical documents are not abundant, but, on the whole, do not seem to demonstrate that dinitrophenol is toxic for the kidneys."
"Dinitrophenol has almost no action on the blood cholesterol. (Grant and Schube)."
"it doesn't seem that dinitrophenol at usual clinical doses is likely to harm the kidneys."
"Dinitrophenol is remarkable for its absence of effect on the cardio-vascular system...dinitrophenol is absolutely devoid of toxicity for the heart."
"Dinitrophenol does not attack cell tissue albumin and does not determine the fat loss to the expense of the muscles, contrary to thyroxine."
"dinitrophenol offers this precious advantage that the cessation of its use at the slightest appearance of signs indicating an imminence of intoxication results immediately in the arrest of those symptoms." (Professor Pouchet)."
Interestingly, one medical theory on a health ADVANTAGE of DNP is that the slight increase in thermogenic temperature simulates the fever a body induces during a viral attack. The body increases itsheat to protect organs but kill viruses, and some theorize that DNP can do the same thing, thus killing viruses in the body. In this mechanism, DNP may have an immune-enhancing effect.
I do not Advocate the use of DNP but clen is not as mild as people think.
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11-08-2006, 09:43 AM #61Originally Posted by goose4
i just dont like dnp,maybe i need to read more,but from some stories ive read,id be better off putting my internal organs in the microwave.
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11-08-2006, 09:54 AM #62Originally Posted by helium3
Those are jsut horrow stories and not the facts.
Goose, excellent post. And I agree as well."without your word you're a shell of a man" - Tupac
***Giants11 is a fictional character any advice given is purely for entertainment purposes, always consult a physician before taking any supplements, drugs or changing your diet.***
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11-08-2006, 10:10 AM #63
Excellent info Shockey (Giants11)
You as well goose4,thank you.
BTW...GO BIG BLUE!!
Bring on those Bears
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11-08-2006, 10:15 AM #64Originally Posted by SS1476
LOL, too many damn injuries......"without your word you're a shell of a man" - Tupac
***Giants11 is a fictional character any advice given is purely for entertainment purposes, always consult a physician before taking any supplements, drugs or changing your diet.***
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11-08-2006, 10:16 AM #65
Thanks for the update Giants - of course this does not explain the two studies with different results. The "good" news is I am finishing my first ever 2 weeks on clen and have realized no real results (the usual sides, just none of the benefits) and had been considering DNP . This info helps make up my mind....
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11-08-2006, 10:19 AM #66Originally Posted by Giants11
We need a great year for Tiki.I hope
Strahan is well for this weekend.
sorry not football fans,we love our BLUE
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11-09-2006, 05:54 AM #67
I hate football, start your own thread!
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11-09-2006, 09:33 AM #68Originally Posted by SS1476
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11-09-2006, 09:38 AM #69Originally Posted by perfectbeast2001
Back to clen .
read Anthony Robert article on Albuterol, IMO its much safter due to the shorter half life and has something that Clen does not.
Human studies proving it effectiveness."without your word you're a shell of a man" - Tupac
***Giants11 is a fictional character any advice given is purely for entertainment purposes, always consult a physician before taking any supplements, drugs or changing your diet.***
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11-10-2006, 11:29 AM #70
Yes albuterol looks like it could be the "new" clen . I will try it as soon as i can get my hands on it.
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11-11-2006, 05:16 AM #71
Thanks man, nice post. I just taken clen this week.
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11-11-2006, 09:27 AM #72
One other thing to consider however is that is has been said that humans have a lower density of Beta-Receptors than animals in any given tissue sample.
I see in the myotoxic text above that the apoptosis is thought to be related to the neuro & sympathetic systems, surely this would mean that with humans having a lower density than animals the toxicity would be less at any given dose?!?!
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11-11-2006, 09:39 AM #73
cracking post! my only question is this: what are your opinions on the 2 day on 2 day off method?
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11-11-2006, 09:53 AM #74Originally Posted by Timm1704
Clenbuterol takes ~36 hours to "get through" your system, so in theory the 2 on/2 off method would only give you around 12 hours of clenbuterol free time, not enough for the receptors to up-regulate naturally.
The answer would be to enhance this up-regulation with the diphenhydramine or similar.
The article in the profiles section is very good!!
Anabolic Review Profile: Clenbuterol
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11-11-2006, 10:17 AM #75
I would agree with jay, due to clens long half life I don't see how such a short off time could be as effective as either upregulation via anti histamines or from prolonged off time (2 weeks for example)
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11-11-2006, 10:52 AM #76
cheers guys, i will go with the 2 week method then
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11-11-2006, 11:05 AM #77Originally Posted by Timm1704
What are your main goals??
Clenbuterol does exhibit some anabolic type properties, and it works very well to "reproportion" you, that is decrease Fat whilst either increasing or at least maintaining Muscle.
To gain the later effects though you would need to be looking at a course which runs for longer than 2 weeks, maybe 10-12 weeks with appropriate upregulation.
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11-11-2006, 11:15 AM #78
very informative post
looks like u did ur homework
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11-11-2006, 11:30 AM #79
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11-11-2006, 12:06 PM #80
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