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Full-Text Articles in Medicine and Health Sciences
Oncolog, Volume 50, Number 07/08, July-August 2005, Rachel Williams, Sunni Hosemann
Oncolog, Volume 50, Number 07/08, July-August 2005, Rachel Williams, Sunni Hosemann
OncoLog MD Anderson's Report to Physicians (All issues)
- Getting Proactive About Prevention
- New Techniques in Tumor Ablation
- House Call: Calling for Help: Cancer Helplines and What They Offer
Effects Of Tamoxifen On Mitochondrial Nos Activity: Alteration In The Intramitochondrial Ca2+ Homeostasis, Sandeep S. Joshi
Effects Of Tamoxifen On Mitochondrial Nos Activity: Alteration In The Intramitochondrial Ca2+ Homeostasis, Sandeep S. Joshi
Theses, Dissertations and Capstones
Tamoxifen (Tam) is an anticancer drug that induces oxidative stress and apoptosis via mitochondria- and nitric oxide (NO)-dependent pathways. Here, we report that therapeutic concentrations of Tam stimulate the mitochondrial NO synthase (mtNOS) activity of isolated rat liver mitochondria by increasing the intramitochondrial ionized Ca2+ concentration ([Ca2+]m). Tam decreases transmembrane potential (∆ψ) due to increased [Ca2+]m that neutralizes the negative charges of the inner mitochondrial membrane. Thus, the present study reports a novel mechanism for the widely used anti- caner drug, Tam.