by Biologist » Tue Mar 13, 2007 1:21 pm
Brooks,
Someone did post it before, but I am glad to see it again, and under its own thread. Good idea.
On the second hyperlink, the following are listed that I have not heard much about and do not take. Anyone have any experience with them?
The first one, Idebenone, is listed towards the top. If we are to assume they are listed in order of priority (obviously not by alphabetical order) then maybe it is particularly important?
Yep, it is a vitamin sales site, but they do appear to be citing legitimate studies. I will be in that direction this afternoon so I will stop at a Whole Foods store vitamin section and see if they have these three. Probably buy 'em.
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Idebenone
Idebenone is a CoQ10 analog that, while sharing some of CoQ10s properties, offers unique mitochondrial-protective benefits of its own. Idebenone is a powerful mitochondrial free radical quencher that reduces the ever-increasing damage to mitochondrial DNA that occurs with age. Idebenone has also been shown to be more effective than CoQ10 in the electron transport chain. Studies show that when cellular oxygen levels are low—a condition that may occur periodically over a lifetime— idebenone is actually superior to CoQ10 for preventing free radical damage while helping cells maintain relatively normal ATP levels—a property that is especially beneficial to brain and heart cells that may be rapidly damaged during low ATP production due to poor tissue oxygenation. (2)
N-Acetyl Cysteine
As previously noted, a major cause of mitochondrial dysfunction is due to changes that take place in the respiratory chain where oxidative phosphorylation occurs (explained in detail in Vitamin Research News, Vol. 16 No. 11). A team of researchers in the Department of Biochemistry and Biophysics at the University of Kalyani in India studied the effects of N-Acetyl Cysteine (NAC) on key elements of the respiratory chain. (6) They administered NAC to mature (40 week-old) rats. After 20 weeks of treatment they found that the activities of Complex I, IV and V were significantly higher in the treated rats compared to the controls. NAC also helped to maintain levels of the important mitochondrial antioxidant, glutathione, as well as prevented cell death in in vitro studies. (7) In other in vitro studies, NAC protected cells from programmed cell death (PCD)—also known as apoptosis—by promoting oxidative phosphorylation, mitochondrial membrane integrity, and mitochondrial homeostasis.
Succinate
Succinate is a tricarboxylic acid (Krebs) cycle interwww.e that donates electrons directly to Complex II. Succinates have been widely used for their alleged ability to enhance athletic performance—especially in Russia. Dilman believed succinic acid was a non-specific cell receptor sensitizer. Several studies reported improvement in clinical conditions using six grams per day of sodium succinate. One patient with respiratory failure and a known mitochondrial defect of Complex I, IV, and V completely resolved on a regimen of 300 mg CoQ10 per day, and six grams of sodium succinate. (19) Another patient with Mitochondrial encephalomopathy, lactic acidosis, and stroke-like episodes (MELAS) improved dramatically when treated with six grams of sodium succinate alone. (20) I think the use of succinates is even more effective when a balance of several salts is used—especially combinations of magnesium and potassium.
Biologist