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Dr. Thomas Seyfried, discusses cancer as a metabolic disease. He holds a Ph.D. in Genetics and Biochemistry from the University of Illinois and has a background in neurology. Dr. Seyfried has received numerous awards and honors from various organizations, and he has over 150 peer-reviewed publications. He is also the author of the book "Cancer as a Metabolic Disease: On the Origin, Management, and Prevention of Cancer," published in 2012.
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Cycle 2, Video #1
Date of publication on Youtube:
18.1.2013
SOURCE:
[ Ссылка ]
Thomas Seyfried, Ph.D. presenting at the 2nd Annual Ancestral Health Symposium (AHS12).
Abstract:
Despite modest advances in the standard of care, malignant cancer persists as a major disease of morbidity and mortality in children and adults.
As a metabolic disorder involving the dysregulation of respiration, malignant brain cancer can be managed through changes in metabolic environment. In contrast to normal neurons and glia, which transition to ketone bodies (beta-hydroxybutyrate) for respiratory energy when glucose levels are reduced, malignant brain tumors are mostly dependent on non-oxidative substrate level phosphorylation due to structural and functional abnormalities in mitochondria. Glucose and glutamine are major fuels for malignant cancer cells.
The transition from glucose to ketone bodies as an energy source is an ancestrally conserved adaptation to food deprivation that permits the survival of normal cells during extreme shifts in nutritional environment. Only those cells with a flexible genome, honed through millions of years of environmental forcing and variability selection, can transition from one energy state to another.
We propose a different approach to brain cancer management that exploits the metabolic flexibility of normal cells at the expense of the genetically defective and metabolically challenged. This evolutionary and metabolic approach to brain cancer management is supported from studies in orthotopic mouse brain tumor models and from case studies in patients. Calorie restriction and restricted ketogenic diets (R-KD), which reduce circulating glucose levels and elevate ketone levels, are anti-invasive, anti-angiogenic, and pro-apoptotic towards malignant brain cancer. The therapeutic efficacy of some anti-cancer drugs can be enhanced when administered together with the R-KD.
Bio:
Thomas Seyfried is Professor of Biology at Boston College. He is presently on the editorial boards of Nutrition and Metabolism, Neurochemical Research, the Journal of Lipid Research, and ASNNeuro. His research involves gene-environmental interactions in neurological and neurodegenerative diseases including epilepsy, autism, gangliosidoses, and brain cancer.
