"Would you mind explaining some of your terms - DMSA, Cutler's protocol and ALA?"
DMSA. Di-thiol chelator of lead, mercury and some other heavy metals. It is a US FDA approved drug for removing lead in kids. Cutler thinks it needs to be taken roughly every 4-5 hours around the clock for a few days in order to be safe with it. It does not cross into the brain and some organs very well.
ALA. Alpha Lipoic Acid. Antioxidant that we get from food in small amounts but available as a supplement in most pharmacies in the US (by scriipt only in some other countries). It is also a di-thiol chelator of mercury, arsenic and maybe other heavy metals. You can see dual SH groups (mercury magnets) of the the reduced form of LA. http://lpi.oregonstate.edu/infocenter/othernuts/la/lastructure.html
Lipoic acid is quite unusual among the mercury chelators in that it crosses the blood brain barrier. This is wonderfully powerful when used safely since otherwise the inorganic form of mercury essentially gets stuck in the brain. However, LA can also be quite harmful if used incorrectly. It can move mercury *into* the brain if used incorrectly as the body moves towards equilibrium!
I believe LA recycles and therefore helps to preserve glutathione levels in the liver.
LA is the primary chelator in the Cutler chelation protocol.
Cutler. He is a (semi-retired?) PhD chemist/chemical engineer who had a heavy metal problem about 15 yrs ago--including quite a bit of tremor. He got much better and documented his methods. He is now a health care consultant for doctors. His methods have been particularly effective for an impressive percentage of people with symptoms of MS and autism, but also CFS, some psych problems, fibromyalgia, etc.
His books include Amalgam Illness, which is on the chronic effects of mercury, especially from "silver" Amalgam fillings which contain roughly 50% mercury. It is available at noamalgam.com
His other book, Hair Test Interpretation is best known for his "counting rules" theory. He thinks mercury affects movement of minerals in the body ("mineral transport"). When the problem is serious enough the essential elements section of a hair test become statistically strange. More on an early version of his theory here and a reply by a noted autism/DAN doctor. http://onibasu.com/archives/am/2200.html
Cutler discusses all of these issues in this interview with Dr Dan Pompa, both of whom had heavy metal related illnesses. They discuss the challenges of getting diagnosed and effective treatments. http://www.healthcentersofthefuture.com/DrCutler/