Related Episodes for Insulin, carbohydrates and the IGF-1 pathway’s role in cancer and aging | Peter Attia

Many of the anabolic effects of growth hormone are thought to be mediated by insulin-like growth factor-1, or IGF-1 (https://www.ncbi.nlm.nih.gov/pubmed/18500379), which is synthesized primarily in the liver but also in skeletal muscle in response to growth hormone.

“Study. 01:43:00 - High animal protein intake was only positively associated with cardiovascular mortality among individuals with at least one unhealthy lifestyle risk factor, such as obesity or sedentary lifestyle. Study.”

“00:29:20 - Organs shrink during fasting and then regrow after refeeding. Study. 00:29:45 - Fasting stresses healthy cells so they increase their stress-response pathways, including heat shock proteins, antioxidant production, and anti-inflammatory.”

“1 02:37:05 - Mothers that chew xylitol gum starting mid-pregnancy and continuing until 6-12 months after birth lowered the oral streptococcus mutan bacteria, which is an anaerobic bacteria that plays a significant role in tooth decay, in their toddlers/children.”

“02:03:18 - A recent study measured omega-3 fatty acid levels from both supplemental and dietary sources in blood and found that for every 1 percent increment in omega-3 fatty acid levels there was a 20 percent decreased risk in all-cause mortality.”

“00:34:40 - Repeated traumatic brain injury has cumulative neuroinflammatory effects in the brain over years, including amyloid-beta plaque and tau tangle formation. Study. 00:44:00 - A variant of the APOE gene increases risk of developing Alzheimer’s disease as much as 15-fold.”

“New Scientist article. 02:06:10 - Some people, like Tom Cruise and Keanu Reeves, seem to defy aging. 02:08:15 - One 12-ounce can of sugar-sweetened soft drink per day shortened telomere length, corresponding to 4.6 years of biological aging.”

“Some of the factors contributing to these variable phenotypes include persistent damage to our DNA and mitochondrial dysfunction, driven by an altered NAD:NADH ratio, the latter of which has recently been shown to be improved by certain dietary supplements like nicotinamide riboside.”

“Dr. Patrick also discusses glucose, HbA1c, fasting insulin, kidney and electrolyte markers, hs-CRP, fibrinogen, thyroid tests, CBC, vitamin D, sex hormones, IGF-1, and the Omega-3 Index.”

“If we eat carbohydrate-containing foods when melatonin levels are high, our pancreas cannot produce the insulin needed to use the glucose. Therefore, eating too close to bedtime or immediately upon waking, before nightly melatonin levels have declined, may hamper the body's ability to process glucose.”