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The present review discusses recent work on melatonin-mediated circadian regulation, the metabolic and molecular signaling… Expand Abstract: We studied the subcellular levels of melatonin in cerebral cortex and liver of rats under several conditions. The… Expand Mesenchymal stem cells (MSCs) are pluripotent stromal cells that have the potential to give rise to cells of diverse lineages… Expand Inflammation-mediated dysregulation of the kynurenine pathway has been implicated as a contributor to a number of major brain… Expand The tryptophan (trp)‐catabolizing enzyme indolamine 2,3‐dioxygenase (IDO) is induced by the T helper 1 (Th 1) cytokine IFN… Expand Rates of serotonin synthesis were measured in the human brain using positron emission tomography. The sensitivity of the method… Expand Abstract: Melatonin is a very potent and efficient endogenous radical scavenger. The pineal indolamine reacts with the highly… Expand The neuroepithelial cells (NECs) of the fish gill filament share several morphofunctional features with the cells of the… Expand The conditions for survival of transplants of peripheral and central monoamine neurons in the adult rat brain were studied using… Expand A sensitive immunofluorescene technique was used to describe systematically the distribution of dopamine‐β‐hydroxylase (DBH… Expand