Figure 6.

NAD⁺ administration markedly increased the Bcl-XL levels in rat hearts that were subjected to myocardial I/R. A. Western blot assay for Bcl-XL in rat hearts. Rats were administered with saline or 20 mg/kg NAD⁺ intravenously. Subsequently, the rats underwent myocardial I/R. Six hours after the reperfusion, the Bcl-XL levels in the homogenates of the rat hearts were determined by Western blot assay. B. Quantifications of the Bcl-XL protein level in the rat hearts. NAD⁺ administration significantly increased the protein level of Bcl-XL in the rat hearts. N = 5. *p < 0.05.