Guest guest Posted January 1, 2004 Report Share Posted January 1, 2004 This was actually about ADHD but the info about different (calming) supps is really interesting. I never knew Ritalin increased serotonin - this is why Harry did so poorly on it several years ago before dx. Hope it helps someone. Prue The Serotonin Connection to ADHD In 1999, researchers at the Medical Institute discovered that Ritalin and other stimulants exert their paradoxical calming effects by boosting serotonin levels in the brain. Elevating serotonin appears to restore the delicate balance between dopamine and serotonin and calms hyperactivity. (16) Previously it was thought that the calming action of Ritalin worked through the neurotransmitter dopamine. Specifically, researchers believed that Ritalin and other stimulants interacted with the dopamine transporter protein (DAT). After a nerve impulse moved from one neuron to another, DAT removed residual dopamine from the synaptic cleft, and repackaged it for future use. However, Caron's study found that if DAT was removed then the calming effect of Ritalin still occurred. From these results it was then suspected that dopamine wasn't the only key to understanding ADHD. Their studies suggested that rather than acting directly on dopamine, the stimulants create a calming effect by increasing serotonin levels. The study concluded that the proper balance between dopamine and serotonin was the key, and that hyperactivity may develop when the relationship between dopamine and serotonin is out of balance. (17) Another key amino acid is tyrosine which assists the body cope physiologically with stress by building the body's store of adrenaline. Chronic stress increases the need for tyrosine and often results in an extreme reduction of brain tyrosine levels. Tyrosine with Vitamin B6 , zinc and magnesium helps regulate blood pressure and elevate mood by enhancing the synthesis of noradrenalin in the brain. Food Allergies, Gut Dysfunction and Gastrointestinal Parasites Food sensitivities and food allergy provoke hyperactivity through partially digested food (exorphins) entering the blood stream and scrambling the neuronal communicative system. In eight out of nine studies 86% of hyperactive children had elevated eosinophils indicative of allergy or parasitic infection. (18) Data from two double blind studies indicated that 73-76% of ADHD children responded favourably to food elimination diets. Maintenance on low-antigen diets raised the success rate to 82%. (19) One study found significant quantities of bacterial pathogens, yeast organisms and protozoan parasites were in a high proportion of children with ADHD. These findings are quite suggestive that these children suffer from impairment of gut mucosal immunity. (20) Studies have shown that Candida (species) leads to an increase in tartaric acid in urine and bowel samples. Tartaric acid competes or inhibits the activity of malic acid in the Krebs cycle, thus reducing energy production. It was also found Candida (species) leads to an increase in arabinose in urine and bowel samples. Arabinose binds with lysine and arginine residue. This forms a penosamide cross linking between lysine, arabinose and arginine. This cross linking impairs catalytic sites for lipoic acid, vitamin B6 and biotin as well as initiating an autoimmune response. Cross linking of proteins results in poor nutrient flow through cell membranes resulting in loss of bowel function. Clostridia (spore formers) cause an increase in dihydroxyphenylpropionic acid (DPPA). DPPA is a false neurotransmitter that reacts with dopamine and nor-adrenaline receptors. This alters the levels of dopamine and nor-adrenaline and may give rise to schizophrenia and behavioural problems. Thus, treatment of intestinal parasites, gut dysfunction and food allergies need to be considered in the treatment of ADHD. Nutrient Deficiencies and Imbalances Assessment of ADHD children often reveals nutrient deficiencies or imbalances which, when corrected, result in considerable behavioural and academic improvement. In a series of studies that spanned 18 years, Schoenthaler found that a vitamin-mineral supplement produced significantly les antisocial behaviour than did placebos. Cognitive performance was also significantly improved. (22) Zinc Zinc is of primary importance in ADHD, as it is an important co-factor in metabolism, relevant to neurotransmitters, fatty acids, prostaglandins and indirectly affects dopamine metabolism. (23) Several studies conducted in different countries have found zinc to be low in ADHD sufferers. (23) Serum zinc can be markedly below normal, and urinary zinc clearance can be lower, both findings suggestive of poor zinc intake and/or absorption. Zinc deficiency can result in weakened immune system responses and diminished digestive system function. Children who are zinc deficient are often picky eaters who will only eat a few foods - this of course worsens the zinc deficiency. Studies have also shown that children with ADHD who are unresponsive to stimulant drugs are more likely to be zinc deficient than children who respond favourably to these medications. (24) In addition zinc is an important component of the enzyme, delta 6 desaturase, which converts omega 3 fatty acids to DHA (17). This could explain why children with low levels of zinc also have low levels of essential fatty acids in the blood. Vitamin B6 (pyridoxine) Studies have shown that Pyridoxine can help ameliorate hyperactivity. (25) Vitamin B6 is an essential cofactor for a majority of the metabolic pathways of amino acids, including decarboxylation pathways for dopamine, adrenaline and serotonin. reported that B vitamins improved the behaviour of some children with ADHD in a double blind cross over comparison with methylphenidate. (25) It was also observed that high dose B6 benefited the symptoms while boosting serotonin levels into the normal range. Magnesium Another trace mineral that is highly important in ADHD is magnesium. This mineral has a multitude of uses within the body including the activation of several hundred different enzymes. Magnesium, like zinc is a necessary cofactor required by the enzyme delta 6 desaturase. Magnesium is also a calming mineral that relaxes nerves and muscles and diminishes the effects of stress. (27) Recurrent infections, food or environment allergies and gastrointestinal parasites can all result in excessive magnesium loss. (27) Low magnesium may be associated with hyperactivity due to hyperirritability of brain neurons. Studies have shown that supplementation with magnesium can improve behaviour and cognitive performance in children with ADHD. (28) Adults with ADHD are also likely to require magnesium supplementation. Avoiding stimulants like caffeine, nicotine or amphetamines, as well as learning to manage stress and addressing physical problems such as chronic infection, allergies and gut dysfunction and/or parasitic infestation are all important factors which will help to decrease further magnesium loss. Essential Fatty Acids (EFA's) Several studies have indicated that some physical symptoms reported in ADHD are similar to symptoms observed in essential fatty acid (EFA) deficiency. One reliable symptom of EFA deficiency is excessive thirst (polydypsia) without matching polyuria. (29) An English ADHD support group reported that children with hyperactivity were significantly more thirsty than children who were not hyperactive. measured plasma fatty acids in 100 children and found the hyperactive children had significantly lower concentrations of DHA, arachidonic acid and DGLA . Phosphatidyl Serine Phosphatidyl serine is clinically proven to benefit a wide range of brain functions.(30) This phospholipid occurs in the brain at far higher concentrations than it does in other organs. It is a key constituent of nerve cell synaptic membranes, which are deeply involved in the production of neurotransmitters. Ingested as a supplement phosphatidyl serine energises the human brain, facilitating synaptic connectivity and specifically boosting dopamine transmitter functions, ie. its production, release, and post synaptic receptor actions. In a study of ADHD children aged between 4 and 19 years, dietary supplementation with phosphatidyl serine benefited greater than 90% of the cases.(32) At intakes of 100-300 mg/day of phosphatidyl serine, attention and learning were most consistently improved. Primary Nutritional Recommendations (Dosage recommendations are for adults, children's dosage should be calculated according to weight) Zymin 2 x 1 ml/day (Zinc, B6, Mg) DHA/EPA 2-4 caps/day (EFA's) Nutri 21 1-2 caps/day (Adult) (Multi vitamin/mineral with tyrosine) Or Childrens Formula 3 tspn/day (Multi vitamin/mineral for children) Secondary Nutritional Recommendations Phosphatidyl Serine 1-3 caps/day (Phosphatidyl Serine) SFM 1-2 tabs/day on empty stomach (Tyrosine plus cofactors) GIT 1/Gut Repair 1 dstspn per day (To improve gut dysfunction) For further secondary nutritional supplement suggestions and references - see the ADHD section in the 6th edition of the Physicians Handbook of Clinical Nutrition. 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