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Effect of calcitriol on the apoptosis of neurons. The cortex region from the Sham, GCI and calcitriol groups was subjected to a TUNEL assay at 3 days after GCI (scale bar, 50 μm). Percentages of TUNEL-positive cells were determined. Values are expressed as the mean ± standard error (n=5 for each group). *P<0.001 vs. Sham group; #P<0.001 vs. GCI group. GCI, global cerebral ischemia; TUNEL, terminal deoxynucletidyl transferase deoxyuridine triphosphate nick end-labelling.
