The effects of high-intensity interval training and saffron aqueous extract supplementation on alterations of body weight and apoptotic indices in skeletal muscle of 4T1 breast cancer-bearing mice with cachexia.

07:00 EST 14th January 2020 | BioPortfolio

Summary of "The effects of high-intensity interval training and saffron aqueous extract supplementation on alterations of body weight and apoptotic indices in skeletal muscle of 4T1 breast cancer-bearing mice with cachexia."

Exercise training and antioxidant supplementation may improve unintentional weight loss and programmed cell death associated with cancer cachexia. The aim of this study was to examine the alterations of body weight and apoptotic indices in skeletal muscle of 4T1 breast cancer-bearing mice with cachexia following 4 weeks of high-intensity interval training (HIIT) and saffron aqueous extract (SAE) supplementation. Female BALB/c mice following induction of breast cancer were divided into (1) controls, (2) HIIT, (3) SAE, (4) HIIT+ SAE, and (5) sham groups. Mice were euthanized and gastrocnemius muscle was collected after intervention. The control group elicited a significant weight reduction during 3rd and 4th weeks of tumor injection, while other treatments like HIIT and SAE, not HIIT+SAE showed to counteract this adverse event. Furthermore, HIIT and SAE treatments (not HIIT+ SAE) demonstrated reduced caspase-3 and Bax levels than the control group. The level of Bcl-2 was elevated following both HIIT and SAE treatments than the control group. Finally, the ratio of Bcl-2 to Bax was significantly higher in both HIIT and SAE groups, but lower in HIIT+SAE group than sham group. It is likely that either HIIT or SAE intervention alone (not HIIT+ SAE) represents a readily applicable approach in the regulation of muscle wasting and apoptosis in cancer cachexia. Novelty • HIIT is associated with a reduced risk of cancer- related muscle wasting. • SAE improvement the muscle wasting through reduce apoptosis indices. • Combination of HIIT and SAE does not improve cancer-related loss of muscle mass and mediate apoptotic activation.


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This article was published in the following journal.

Name: Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme
ISSN: 1715-5320


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