| Nuclei of affected neurons remained central but were variably pyknotic, karyorrhectic, or rarely karyomegalic with absent or dispersed chromatin. |
| Apoptotic keratinocytes with condensed eosinophilic cytoplasm, with or without pyknotic nuclei, are also appreciated. |
| In contrast, animals receiving SAC did not show pyknotic nuclei, while neuropil was notably preserved. |
| The nuclei are small, pyknotic, and dark blue, and the cytoplasm is large and light blue. |
| Upon oviposition, the corpora lutea significantly decrease in size and pyknotic nuclei can be observed in the cells of the luteal mass. |
| The process continues with eventual formation of pyknotic nuclei. |
