Age related iron accumulation & Ferrotoxic Disease has been getting increased attention over the past few years and I want to start a thread as a reference for the multiple sources I have found.
For some perspective on the importance of this issue; Jerome L Sullivan MD, PhD started off the "Iron Hypothesis" of aging and disease in the 1980's with his paper describing as a pathologist, how age related iron accumulation in males appeared to be responsible for their greater susceptibility to heart disease and reduced lifespan compared to females, who naturally lose iron throughout much of their lives through menstruation.
Genetic Hemochromatosis, which results in abnormal accumulation of excess iron was originally called "Bronze Diabetes" due to the almost universal finding of diabetes associated with excess iron and the abnormal bronzing of the skin also seen in these patients.
Another sign/symptom of hemochromatosis is arthritis / arthropathy, typically showing up as unusual joint degeneration in the hands, often early in middle age. Generalized arthritis is a common enough finding in the elderly, but degenerative arthritis of the hands appearing in middle age was an atypical finding associated with the disease. Arthritis in those with hemochromatosis is not limited to the hands alone, and generalized early onset arthritis is a common finding.
Heart Disease, Diabetes, Early Onset Arthritis... Could things get any worse?
The association between iron levels and cancer is a relatively recent revelation, but the accumulating evidence is becoming quite compelling and increasingly difficult to ignore. Look for extensive evidence of this in the links below.
For most doctors, iron deficiency anemia in menstruating females and the "anemia of chronic disease" in the elderly, are all too common in their practice, and it's often difficult for them to grasp a concept of patients having "too much iron". The normal range for blood ferritin (stored iron) set by most labs is remarkably wide, at around 20-200 for females and 20-300+ for males; and normal is normal as far as most doctors are concerned.
Hemochromatosis aside, is the more typical age related accumulation of iron causing a significant effect on health? Iron fortification of food combined with increased consumption of red meat has only occurred during the last 60 years or so and the post war baby boom generation have been the first humans in history to live their entire lives eating iron fortified food. Life expectancy has risen during this time (largely due to medical progress), but chronic disease, often with early onset has become epidemic. Why have the boomers (and their children) been aging so poorly?
It is increasingly becoming apparent that optimal iron levels may well be substantially lower than the upper lab/value range for normal, and a growing chorus of research is backing up this Iron Hypothesis of aging and disease. Let's take a look at some of these.
http://clinchem.aacc...tent/60/11/1362
Ferrotoxic Disease: The Next Great Public Health Challenge
Short, sweet, & compelling! Life Expectancy for those with low levels of iron accumulation (ferritin below 200), 79. For those with high levels (ferritin 600+), 55. Would maintaining ferritin below 100 increase life expectancy even further?
The Iron Disorders Institute opines: http://www.irondisor...org/iron-tests/
Under Serum Ferritin (SF): "Serum ferritin measurements range from about 15–200 ng/ml for women and 20–300 ng/ml for men. Although laboratory ranges vary, most are close to these values. Approximately 95% of the population will fall within “normal” population range simply because ranges are calculated using standard statistical methodology. Except for the lower ends of these ranges, which can predict anemia or iron deficiency anemia, the ranges per se do not define optimal or even healthy iron levels. Optimal SF ranges for men and women are 25 – 75 ng/ml. Individuals with risk factors for diabetes, cardiovascular diseases, stoke, liver diseases and cancer face amplified risks proportional to the amount of stored body iron over and above the optimal range.
Numerous medical research studies have demonstrated that serum ferritin above 100 ng/ml has been associated with decreased cardio vascular fitness and increased incidences of: atherosclerosis, type 2 diabetes, cancer gout and accelerated aging including osteoporosis and sarcopenia (muscle wasting) due to oxidative stress. Fortunately this does not pertain to everyone; ferritin levels and stored iron can remain safely contained, even when ferritin exceeds 150 ng/ml, if the body’s natural antioxidant defenses are working properly (see section on GGT)."
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Turning to the blogosphere, Richard Nicoley's Feed the Animal has an extensive but easy read on: Iron, Food Enrichment and the Theory of Everything
https://freetheanima...everything.html
Everything you ever wanted to know about how iron fortification of food has changed the health of the world.
Did iron fortification contribute to the obesity epidemic?
https://freetheanima...efinements.html
Is the gluten free fad simply a result of bowel intolerance to the highly reactive iron added to flour?
https://freetheanima...-liability.html
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Bill Sardi's thesis on: A Unifying Theory of Aging explains the nuts and bolts on how iron accumulation accelerates aging quite well.
http://www.longevine...of-aging-part1/
http://www.longevine...f-aging-part-2/
http://www.longevine...f-aging-part-3/
http://www.longevine...f-aging-part-4/
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The Health-e-Iron site contains a small ocean of studies compiled which back-up the theory of Iron, Aging & Disease.
http://www.healtheir...science-library
http://www.healtheiron.com/iron-cancer
http://www.healtheir.../iron-diabetes1
http://www.healtheiron.com/iron-brain
http://www.healtheir...duction-therapy
http://www.healtheir.../iron-infection
Hours of reading for inquiring minds... Stay Young & Beautiful!
Edited by synesthesia, 07 May 2017 - 11:32 PM.