Karyolysis

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Karyolysis (pronunciation: /ˌkæriˈɒlɪsɪs/) is a medical term that refers to the dissolution or disintegration of a cell's nucleus, which is often a sign of cell death or apoptosis.

Etymology

The term "karyolysis" is derived from the Greek words "karyon" meaning "nucleus" and "lysis" meaning "loosening" or "dissolving".

Overview

Karyolysis is a process that occurs during the late stages of cell death. It is characterized by the fading or disappearance of the nuclear envelope and nucleolus, and the dissolution of the chromatin material. This process is often triggered by harmful conditions or agents such as toxins, radiation, or infection.

Related Terms

  • Apoptosis: A form of programmed cell death that occurs in multicellular organisms.
  • Necrosis: A form of cell injury which results in the premature death of cells in living tissue.
  • Pyknosis: The irreversible condensation of chromatin in the nucleus of a cell undergoing programmed cell death or apoptosis.
  • Karyorrhexis: The destructive fragmentation of the nucleus of a dying cell whereby its chromatin is distributed irregularly throughout the cytoplasm.

See Also

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