by IAnH » Sat Jun 20, 2009 12:49 am
There may be a small subset of CFS where H2S is a factor (marker) but it is more likely to be a symptomatic byproduct of gastro-enteric infection or imbalance.
Photophobia, noise intolerance, low leukocyte count are rare in cfs. Mitochondrial dysfunction is far from substantiated despite many attempts to link cfs with abnormal oxidative metabolism, bearing in mind that chronic fatigue and cfs are different.
We still have difficulties diagnosing cfs so research programs can still have mixtures of subjects in them. So I am very sceptical and I think it premature to advertise a diagnostic tool.