Basic Science and Pathogenesis.

Background: Doxorubicin (Dox), a chemotherapeutic agent, is known to cause chemobrain leading to cognitive decline and brain mitochondrial dysfunction. Ivabradine (Iva), hyperpolarization-activated cyclic nucleotide-gated channel blocker used for angina and arrhythmia, has been shown to be an anticonvulsant, antioxidant, and neuroprotective agent. However, the effects of Iva on cognitive function, and brain mitochondrial function in Dox-induced chemobrain are still not determined.