Friday, March 26, 2010

Dr. Joseph Mercola - Alpha Lipoic Acid Can Smash Insulin Resistance and Autoimmune Disease


I am generally not a huge fan of Dr. Mercola - yet, while I sometimes disagree with him, I am also sometimes by his articles in a good way. As some of my long-time readers know, I am a huge fan of alpha lipoic acid (ALA) as a supplement. Most of the time, I recommend this nutrient for improving insulin function, and as a secondary benefit, it seems to be useful in treating diabetic (and other forms) neuropathy, and it may have benefits in delaying or preventing some neurological degeneration diseases (which are often caused by oxidative stress).

I generally recommend 600-1800 mg/day of ALA in the racemic form (what we generally get in supplements). If one is taking the more expensive, but more effective, R-Lipoic Acid, then I recommend 200-600 mg/day. The benefits of R-Lipoic Acid seem to be greater and more varied than the standard ALA:
The Benefits of R-Lipoic Acid (RLA)

• RLA significantly reduces inflammation, an underlying cause of the degenerative diseases of aging and is more potent by a factor of 10 over commercial ALA.

• RLA was found to reach higher plasma levels than S-lipoic acid (1.6:1) when given orally as the racemic mixture in a human study.

• RLA was more effective than the SLA in a battery of metal chelation tests. One hypothesis of the cause of diabetic complications involves overloading by transition metals which could explain the stereospecific effect of RLA.

• RLA is the only form of lipoic acid found in nature and, therefore, the only form recognized by the critical mitochondrial enzymes.

• RLA was more effective than SLA in enhancing insulin-stimulated glucose transport and metabolism in insulin-resistant rat skeletal muscle.

• RLA was more effective than racemic ALA and SLA in preventing cataracts in rats.

• RLA increases cellular and mitochondrial antioxidant activity and prevents mitochondrial decay. This effectively attenuates the reported increase in oxidative stress with aging.

• RLA improves memory, reverses cognitive dysfunction, and protects the brain from neurodegeneration associated with aging.

• RLA protects body fats against oxidative damage and reverses stress damage in the heart.

• RLA supplementation improves metabolic activity and lowers oxidative stress and damage evidentin aging.

• RLA significantly increase insulin sensitivity, enhances glucose transport, increases metabolic rate and reduces the gain in body fat from aging. RLA has insulin-mimetic effects in glucose uptake in insulin resistant cells and may have therapeutic implications in restoring glucose availability in tissues such as the skeletal muscle.

• RLA significantly increases or maintain levels of other antioxidants including Coenzyme Q10, vitamin C, vitamin E and glutathione.

• RLA prevents depletion of the glutathione pool within the cytoplasm and mitochondria. Pre-treatment of PC12 cells with RLA leads to the preservation of mitochondrial complex I activity lost due to glutathione depletion.

• RLA is much more effective than SLA at enhancing insulin-stimulated glucose transport and non-oxidative and oxidative glucose metabolism.

• RLA, through its positive effects on cellular energy metabolism, attenuates metabolic dysfunction associated with advanced glycation endproducts (AGEs). AGEs accumulate on long-lived proteins, including beta-amyloid plaques in Alzheimer's disease and contributes to neuronal dysfunction and cell death.

• RLA , a membrane permeable antioxidant, prevents the up-regulation of the AGE-induced gene expression responsible for regulating nitric oxide (NO) production. NO oxidizes and nitrates proteins which are markers of a chronic neuroinflammatory condition. This mechanism is relevant for Alzheimer's disease and for many chronic inflammatory conditions.
For relief of neuropathy pain, I generally suggest a combination of ALA and N-Acetyl-Cysteine. I am becoming more convinced that the R-LA form may actually be better for this as well. Because this is a potent anti-oxidant combination, I suspect that it may be more effective than either alone in helping support liver function in those with Hepatitis C.

In this new column at Huffington Post, Dr. Mercola outlines the many benefits of alpha lipoic acid. But as I have noted above, the R-Lipoic Acid form may be even better for most conditions.

This Antioxidant Can Smash Insulin Resistance and Autoimmune Disease

Dr. Joseph Mercola, Physician and author

Posted: March 26, 2010 08:38 AM

I first became aware of the alpha lipoic regimen by Dr. Burt Berkson in the late 90's. Early on in his career, while an internist, he was given several patients who were expected to die from hepatitis C. His job was more or less to simply baby sit them in the ICU and watch them die.

But Dr. Berkson was a rebel at heart and he simply couldn't do that. Instead he called an associate at the National Institutes of Health and found out how he could treat them. He learned that alpha lipoic acid had some impressive experimental support. Remarkably, although these patients were expected to die within a few weeks, they all completely recovered!

However not all went well for Dr. Berkson. As he made his superiors look foolish, they simply could not tolerate that so rather than embrace his findings, they actively suppressed the results and made his life miserable for showing them up.

This was a pivotal moment in Dr. Berskson's career and caused him to make choices that eventually led to where he is at now. Since then, Dr. Berkson has lectured all over the world on this topic, and published a study on the use of antioxidants for the treatment of hepatitis C.

His first book, The Alpha-Lipoic Acid Breakthrough was published in 1998.

As many of you already know, I am not fond of recommending many supplements, but I do believe that antioxidants make sense for many of us.

Why You Need Antioxidants

Your entire body, including your DNA, is under endless, daily assault from a variety of sources, from poor diets to pollution. Think of your cells, including your brain cells, each getting hit by free-radicals thousands of times a day. This violent process is called "oxidation," which damages your cells.

Enter antioxidants. They include vitamins and other nutrients that target free radicals.

Food, particularly fruits and vegetables, is a powerful source of these valiant protectors, and your body produces some itself. Their role is to limit the damage to your cells, which can slow down disease and signs of aging.

In the case of alpha lipoic acid, your body does produce it in minute quantities, but most of it comes from your diet. Some of the best natural sources include grass-fed red meat and organ meats.

The Benefits of Alpha Lipoic Acid

Alpha lipoic acid (ALA) has many functions, but it's one of the most effective free radical scavengers, and the only one known to easily get into your brain.

It also has the ability to regenerate other antioxidants such as vitamins C, E, and glutathione. So, when your body has used up these antioxidants, if there's ALA around, it helps regenerate them.

You may not know this, but glutathione is another very important antioxidant. You can get it from supplements, but the only form that works effectively is the reduced form, which is difficult to absorb when taken orally. It is much more cost effective to supplement with precursors, or items like alpha lipoic acid that regenerates glutathione.

Alpha lipoic acid also recycles coenzyme Q10 and NAD (nicotinamide adenine dinucleotide).

But, if that wasn't enough, this powerful antioxidant is also:

  • A great modifier of gene expression to reduce inflammation
  • A very potent heavy metal chelator
  • An enhancer of insulin sensitivity

The benefits of ALA can appear near miraculous. For example, according to Dr. Berkson, Russia has successfully used ALA intravenously to reverse ischemia reperfusion injuries by injecting it right after a heart attack or a stroke.

And people with diabetes or metabolic syndrome tend to do much better when taking lipoic acid, as it enhances insulin sensitivity.

There's even been quite a bit of research showing it can restore T cell function. T cells are a type of white blood cells that are of key importance to your immune system, and are at the core of adaptive immunity, the system that tailors your body's immune response to specific pathogens.

What Health Conditions Can be Treated With Alpha Lipoic Acid?

Clinically, alpha lipoic acid seems to be a useful supplement in treating hepatitis C. It can also be used for painful nerve conditions in diabetes, and may help slow down the aging process itself through its reduction in free radicals.

Dr. Berkson uses ALA along with low dose naltrexone (LDN) for the reversal of a number of more serious health conditions such as:

  • Lupus
  • Rheumatoid arthritis
  • Dermatomyositis (an inflammatory muscle disease)
  • Autoimmune diseases

Most of his patients normalize in about one month on this combination of ALA and LDN.

What is Low Dose Naltrexone?

Naltrexone (generic name) is a pharmacologically active opioid antagonist, conventionally used to treat drug and alcohol addiction -- normally at doses of 50mg to 300mg. As such, it's been an FDA approved drug for over two decades.

However, researchers have found that at very low dosages (3 to 4.5 mg), naltrexone has immunomodulating properties that may be able to successfully treat cancer malignancies and a wide range of autoimmune diseases like rheumatoid arthritis, multiple sclerosis (MS), Parkinson's, fibromyalgia, and Crohn's disease, just to name a few.

As explained on the informative website www.lowdosenaltrexone.org, when you take LDN at bedtime -- which blocks your opioid receptors for a few hours in the middle of the night -- it is believed to up-regulate vital elements of your immune system by increasing your body's production of metenkephalin and endorphins (your natural opioids), hence improving immune function.

Can Alpha Lipoic Acid Help Your Workout?
Alpha lipoic acid can be a potent aid when you exercise vigorously.

In my interview, Dr. Berkson gives an anecdotal story about a friend - an international weight lifting champion -- who regularly uses ALA prior to meets.

Unfortunately, there are no set guidelines on dosage and timing. It can be highly individual, and is something that requires a little bit of trial and error in order to get it just right.

But if you suffer from any of the conditions listed above or diabetes it would certainly seem like a useful supplement to consider.

Dr. Joseph Mercola is the founder and director of Mercola.com. Become a fan of Dr. Mercola on Facebook, on Twitter and check out Dr. Mercola's report on sun exposure!


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