Hypertrophy

Hypertrophy
Hypertrophy results from an increase in cell size, whereas hyperplasia stems from an increase in cell number

Hypertrophy (/haɪˈpɜːrtrəfi/, from Greek ὑπέρ "excess" + τροφή "nourishment") is the increase in the volume of an organ or tissue due to the enlargement of its component cells.[1] It is distinguished from hyperplasia, in which the cells remain approximately the same size but increase in number.[2] Although hypertrophy and hyperplasia are two distinct processes, they frequently occur together, such as in the case of the hormonally-induced proliferation and enlargement of the cells of the uterus during pregnancy.

Eccentric hypertrophy is a type of hypertrophy where the walls and chamber of a hollow organ undergo growth in which the overall size and volume are enlarged. It is applied especially to the left ventricle of heart.[3] Sarcomeres are added in series, as for example in dilated cardiomyopathy (in contrast to hypertrophic cardiomyopathy, a type of concentric hypertrophy, where sarcomeres are added in parallel).

-plasia and -trophy
  • Anaplasia (structural differentiation loss within a cell or group of cells).
  • Aplasia (organ or part of organ missing)
  • Desmoplasia (connective tissue growth)
  • Dysplasia (change in cell or tissue phenotype)
  • Hyperplasia (proliferation of cells)
  • Hypoplasia (congenital below-average number of cells, especially when inadequate)
  • Metaplasia (conversion in cell type)
  • Neoplasia (abnormal proliferation)
  • Prosoplasia (development of new cell function)
  • Abiotrophy (loss in vitality of organ or tissue)
  • Atrophy (reduced functionality of an organ, with decrease in the number or volume of cells)
  • Hypertrophy (increase in the volume of cells or tissues)
  • Hypotrophy (decrease in the volume of cells or tissues)
  • Dystrophy (any degenerative disorder resulting from improper or faulty nutrition)

See also

References

  1. ↑ Hernandez, Richard; Kravitz, Len. "Skeletal muscle hypertrophy". www.unm.edu.
  2. ↑ Updated by Linda J. Vorvick. 8/14/15.Hyperplasia
  3. ↑ Kusumoto, F. M. (2004), Cardiovascular Pathophysiology, Hayes Barton Press, pp. 20–22, ISBN 978-1-59377-189-8
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