Articles by author - Sergio D Paredes

Tryptophan administration in rats enhances phagocytic function and reduces oxidative metabolism.

Sanchez S, Paredes S, Sanchez C, Barriga C, Reiter R, Rodriguez A.

Journal Article 2008; 29(6): 1026-132 PubMed PMID: 19112383  Keywords:  Analysis of Variance, Animals, Antioxidants:metabolism, Free Radical Scavengers:metabolism, Macrophages, Peritoneal:drug effects, Male, Oxidative Stress:drug effects, Phagocytosis:drug effects, Rats, Rats, Wistar, Superoxides:metabolism, Tryptophan:metabo.    Citation

OBJECTIVES: Since the tryptophan-derived metabolites serotonin and melatonin have been shown to possess reinforcing and/or antioxidant pro.....

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Melatonin reduces oxidative/nitrosative stress due to drugs, toxins, metals, and herbicides.

Reiter R, Korkmaz A, Paredes S, Manchester L, Tan D.

Journal Article 2008; 29(5): 609-613 PubMed PMID: 18987585  Keywords:  Animals, Antioxidants:pharmacology, Drug-Related Side Effects and Adverse Reactions, Herbicides:toxicity, Humans, Melatonin:pharmacology, Metals:toxicity, Neurotoxins:toxicity, Oxidative Stress:drug effects, Prescription Drugs:toxicity, Reactive Nitrogen .    Citation

: The purpose of this brief review is to introduce the reader to the vast amount of published literature related to the free radical scave.....

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The use of melatonin to combat mustard toxicity. REVIEW.

Korkmaz A, Kunak Z, Paredes S, Yaren H, Tan D, Reiter R.

Journal Article 2008; 29(5): 614-619 PubMed PMID: 18987575  Keywords:  Animals, Antioxidants:pharmacology, Bioterrorism, Chemical Warfare Agents:toxicity, Humans, Melatonin:pharmacology, Mustard Gas:toxicity, Neurotoxicity Syndromes:prevention & control,.    Citation

: Among the most readily available chemical warfare agents, sulfur mustard (SM) has been the most widely used chemical weapon. The toxicit.....

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Biogenic amines in the reduction of oxidative stress: melatonin and its metabolites.

Reiter R, Tan D, Jou M, Korkmaz A, Manchester L, Paredes S.

Journal Article 2008; 29(4): 391-398 PubMed PMID: 18766165  Keywords:  Animals, Antioxidants:metabolism, Free Radicals:metabolism, Melatonin:metabolism, Mitochondria:metabolism, Molecular Structure, Neuroprotective Agents:metabolism, Oxidative Stress, Reactive Nitrogen Species:metabolism, Reactive Oxygen Species:metabolism,.    Citation

: N-acetyl-5-methoxytryptamine (melatonin) is an endogenous indoleamine produced by all vertebrate organisms. Its production in the pineal.....

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Melatonin and tryptophan as therapeutic agents against the impairment of the sleep-wake cycle and immunosenescence due to aging in Streptopelia risoria.

Paredes S, Barriga C, Rodríguez A.

Journal Article 2007; 28(6): 757-760 PubMed PMID: 18063930  Keywords:  Activity Cycles:physiology, Aging:immunology, Animals, Columbidae, Leukocytes:physiology, Melatonin:physiology, Neuroimmunomodulation:physiology, Phagocytosis:physiology, Serotonin:blood, Sleep:physiology, Superoxides:blood, Tryptophan:physiology, Wakeful.    Citation

: All organisms present circadian rhythm in most of their physiological functions, and among them there stand out sleep, motor activity, i.....

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Altered circadian rhythms of corticosterone, melatonin, and phagocytic activity in response to stress in rats.

Paredes S, Sánchez S, Parvez H, Rodríguez A, Barriga C.

Journal Article 2007; 28(4): 489-495 PubMed PMID: 17693961  Keywords:  Animals, Cell Count, Circadian Rhythm:physiology, Corticosterone:blood, Immune System:physiology, Macrophages:pathology, Male, Melatonin:blood, Microspheres, Peritoneal Cavity:cytology, Phagocytosis:physiology, Physical Conditioning, Animal:physiology, Ra.    Citation

: Corticosterone is thought to be the main glucocorticoid secreted in response to stressful exercise, while melatonin buffers the adverse .....

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