Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Apoptotic activity was analyzed by the terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick end labeling (TUNEL) assay. (A) Positive TUNEL straining (green) was observed under a fluorescence microscope. (B) Quantitative analysis. The number of apoptotic cells was calculated by averaging the number of positive TUNEL signals. *Significant interstrain differences, р < 0.05; #significant differences with the preceding age, р < 0.05. Bar 50 mkm.
