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  2. Muscle hypertrophy - Wikipedia

    en.wikipedia.org/wiki/Muscle_hypertrophy

    As muscle hypertrophy is a response to strenuous anaerobic activity, ordinary everyday activity would become strenuous in diseases that result in premature muscle fatigue (neural or metabolic), or disrupt the excitation-contraction coupling in muscle, or cause repetitive or sustained involuntary muscle contractions (fasciculations, myotonia, or ...

  3. Growth hormone in sports - Wikipedia

    en.wikipedia.org/wiki/Growth_hormone_in_sports

    It should be clarified, though, that muscle mass is not the same as muscle strength. Some say that human growth hormone will build muscle mass through raised insulin-like growth factors levels leading to heightened protein synthesis without any side effects [ 12 ] while other researchers argue that there have been no such findings on young ...

  4. Growth hormone therapy - Wikipedia

    en.wikipedia.org/wiki/Growth_hormone_therapy

    Growth hormone is a peptide hormone secreted by the pituitary gland that stimulates growth and cell reproduction. In the past, growth hormone was extracted from human pituitary glands. Growth hormone is now produced by recombinant DNA technology and is prescribed for a variety of reasons. GH therapy has been a focus of social and ethical ...

  5. Pfizer-OPKO's growth hormone drug gets US approval in kids - AOL

    www.aol.com/news/us-fda-approves-pfizers-drug...

    The injectable hormone therapy, to be sold under brand name Ngenla, was approved for the treatment of pediatric patients aged three years Pfizer-OPKO's growth hormone drug gets US approval in kids ...

  6. Growth hormone - Wikipedia

    en.wikipedia.org/wiki/Growth_hormone

    Genes for human growth hormone, known as growth hormone 1 (somatotropin; pituitary growth hormone) and growth hormone 2 (placental growth hormone; growth hormone variant), are localized in the q22-24 region of chromosome 17 [7] [8] and are closely related to human chorionic somatomammotropin (also known as placental lactogen) genes.

  7. Muscle contraction - Wikipedia

    en.wikipedia.org/wiki/Muscle_contraction

    Depiction of smooth muscle contraction. Muscle contraction is the activation of tension-generating sites within muscle cells. [1] [2] In physiology, muscle contraction does not necessarily mean muscle shortening because muscle tension can be produced without changes in muscle length, such as when holding something heavy in the same position. [1]

  8. Somatotropin family - Wikipedia

    en.wikipedia.org/wiki/Somatotropin_family

    The Somatotropin family is a protein family whose titular representative is somatotropin, also known as growth hormone, a hormone that plays an important role in growth control. [1]

  9. Myostatin - Wikipedia

    en.wikipedia.org/wiki/Myostatin

    Myostatin (also known as growth differentiation factor 8, abbreviated GDF8) is a protein that in humans is encoded by the MSTN gene. [6] Myostatin is a myokine that is produced and released by myocytes and acts on muscle cells to inhibit muscle growth. [7] Myostatin is a secreted growth differentiation factor that is a member of the TGF beta ...

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