Zinc Deficiency in Children with Dyslexia: Concentrations of Zinc and other Minerals in Sweat and Hair
Grant ECG, Howard JMH, Davies S, Chasty H, Hornsby B, Galbraith J
Brit. Med. J. 1988;296:607-609
Developmental dyslexia is estimated to affect about 10% of 10 year olds. Studies of mineral concentrations in hair have found that children with impaired learning and those with behaviour disorders tend to have higher concentrations of toxic metals, especially copper, lead and cadmium. Although animal studies have shown that zinc is essential for brain development and function, controversy has arisen about the extent and severity of zinc deficiency in clinical practice because a simple, reliable and sensitive test is not yet in routine use. Sweat zinc concentrations are decreased in zinc deficient states. They may be a more useful guide to clinical zinc deficiency than either hair or serum concentrations. Therefore we compared concentrations of minerals in sweat and hair in children with dyslexia and a control group.
NOTICE : Biolab Limited has gone into administration
14th July 2022
Biolab Limited has gone into administration due to the delay by The Care Quality Commission in processing our application to transfer our business activities to our laboratory site in West London following an earlier temporary suspension.
We always remained highly confident that Biolab would reopen and invested heavily in relocating the business, retaining and retraining our employees, developing new and improved methods of work and updating our documentation, so this comes as a huge disappointment for us all, but as you’ll appreciate no business can continue indefinitely without an income.
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