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The Ethics Committee of Ain Shams university approved this randomized prospective double-blinded controlled parallel group study to be held in Cardiothoracic Academy for three months from December 2019 to April 2020. The study was conducted on three hundred and twenty older patients aged from 60-80
Tryptophan (TRP), an essential aminoacid, is metabolized in the serotonin (5-HT) or in the kynurenine (KYN) pathway. Serotonin is catabolized to 5-HIAA (5-hydroxyindole amino acid) by monoamine oxidase A (MAOA). The TRP to KYN transformation is regulated by indoleamine 2,3-dioxygenase (IDO).
The
Cataract is one of the most common causes of impaired vision as well as the third leading cause of blindness in the United States. Cataract surgery is one of the safest and most successful of all operations. The National Eye Institute has estimated that if the progression of cataract could be slowed