Hypertrophy

(. Ὑπερτροφία to AltGr, neulateinisch: hypertrophy, overeating ') hypertrophy or hypertrophy referred to in medicine, the increase in size of an organ or tissue (for increased load) solely by cell enlargement. In enlarged organs hypertrophy and hyperplasia can occur in parallel. The hypertrophy occurs only through the increased synthesis capacity ( hypertrophic, overfed ') of the cells but not by cell swelling ( caused for example by increased inflow of water or fat storage ). In contrast to the hyperplasia of the cell number and structure remains the same. The hypertrophy may be increased by removal of the stimulus largely regress ( reversible). The opposite of hypertrophy is the hypotrophy.

Molding

• Correlative hypertrophy (endocrine hypertrophy ) is caused by overproduction of endogenous or exogenous hormones supply and leads to a tissue or organ growth. This can occur in the breast, uterus and prostate.
• The Aktivitätshypertrophie ( Arbeitshypertrophie ) is the natural adaptation to a physiologically functional burden ( stress stimulus). This includes, as an example the sports heart and muscle growth through weight training or bodybuilding.
• The compensatory hypertrophy is the pathological adaptation to a pathological burden. This leads to a tissue or organ growth ( compensate ) to compensate for a different failure. This is, for example, valvular or a loss of organs (eg, the loss of a kidney) the case.