Myostatin Inhibition Does Not Affect the Heart

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  1. #1
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    Post Myostatin Inhibition Does Not Affect the Heart

    Myostatin Inhibition Does Not Affect the Heart



    When myostatin was first discovered, researchers questioned although myostatin inhibition results in increases in muscle mass, does it affect the heart? To date, there are no long-term studies of myostatin inhibition in humans, but Belgian Blue cows appear to have smaller hearts and a shorter lifespan, whereas whippet MSTN knockout dogs are actually slower than their leaner greyhound relatives. In a recent issue of The Journal of Physiology, researchers systematically explored the effect of myostatin inhibition on cardiac structure and function. The authors used a myostatin knockout mouse model with ∼30% increase in body weight (due mainly to skeletal muscle gain) and similar increase in cardiac mass. Thus, body weight/heart weight ratio of MSTN knocjout mice was no different from wild-type littermates. Overall, the cardiac effects affirm the notion that myostatin inhibition generates a ‘mighty mouse’ with no apparent deleterious cardiac effects. The authors studies support the novel concept that myostatin is a repressor of physiological cardiac muscle growth and function. Thus, the controlled inhibition of myostatin action could potentially help repair damaged cardiac muscle by inducing physiological hypertrophy; although caution should be exerted because no functional analysis of other organs was conducted, and long-term effects remain unclear. Human studies need to be conducted but the fact that myostatin had no effect on heart mass or function leads to further support for myostatin use as a safe and effective means for increasing muscle mass.
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    "although caution should be exerted because no functional analysis of other organs was conducted, and long-term effects remain unclear."

    Like super-peristaltic muscles so you can fire turds out your ass? The army could use myostatin-inhibited gay men as rocket launchers! I can see these soldiers with velcro butt flaps on their uniforms sitting on the ground, grabbing ankle and rocking back while another loads them up.....fire in the hole! FOOOOOMP KABLOOOOEEEYYY AAAAHHHHHHHHH
    Coarse edged youth, the irish pendants string from their smiles
    not yet plucked as to slacken the seams
    and drag down the features of age,
    no folds or creases from unkempt wear
    eyes of tranquilty, crystalline-beads
    no sign of despair in their hair, nor their hearts
    but oh they have yet to be experienced and that makes aging so very worth it...ML circa2012

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