pyknosis

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pyknosis

[pik′nō·səs]
(pathology)
The polymerization and contraction of the nuclear chromosomal components.
References in periodicals archive ?
Chromatolysis and pycnotic changes, as well as a decrease (and sometimes a complete absence) of neuroendocrine granules, were dominated.
Testes of animals in Group 2 and 3 exhibited disordered, sloughed germinal cells with shrunken pycnotic nuclei and less distinct seminiferous tubule borders.
Cr (VI) induced necrosis in tubular epithelium, pycnotic nuclei in the hematopoietic tissue, narrowing of the tubular lumen and expansion of spaces inside the Bowman's capsule (Ahmad et al., 2006; Velmurugan et al., 2007; Ashish and Banalata, 2008; Pedro and Alicia, 2008; Lushchak et al., 2008; Mishra and Mohanty, 2009; Sannadurgappa and Aladakatti, 2010).
Apoptotic cells were identified by their pycnotic nuclei, which label strongly with acridine orange, as previously described (Foster and McFall-Ngai, 1998).
Apoptosis was determined by scoring cells displaying pycnotic nuclei (visualized with Hoechst 33342) [31].
Extensive pycnotic tumour cells or ruptured blood vessels were found at 24 h after 0.5 h-delayed PDT.
It is possible to observe a thin corneal layer of flattened cells and pycnotic nucleoli.
Diffuse ciliar desquamation of epithelial cells accompanied by areas of degeneration was observed; some cells both were pycnotic and had commenced apoptosis.