Either your web browser doesn't support Javascript or it is currently turned off. In the latter case, please turn on Javascript support in your web browser and reload this page. Obispado, Monterrey, NL, Mexico. Throughout life, bone tissue undergoes a continuous process of resorption and formation. Melatonin, with its antioxidant properties and its ability to detoxify free radicals, as suggested by Conconi et al. Inhibition of bone resorption may be enhanced by a reaction of indoleamine in osteoclastogenesis.

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Realizace AOW, s. Revised 6 th December Published online 16 th March Full text article pdf SUMMARY We studied the influence of physical activity stress on the circadian rhythms of melatonin and corticosterone in 3-month old male Wistar rats.

Every two hours for 24 h around the clock, an animal from the stressed group was first made to swim for two hours, and was then subjected to a further ten minutes of forced swimming using a modification of the apparatus employed in the Porsolt test.

The capacity to resume swimming after the exhausting 2-hour swim was measured by the number of swimming movements that were made by the animal in the additional min swimming period. Blood was collected immediately after the trial, and the plasma melatonin and corticosterone levels determined by RIA.

Control group blood was collected at 1-h intervals in the periods from to and from to , and at 2-h intervals during the remaining periods. The control rats presented plasma melatonin and corticosterone circadian rhythms with nocturnal and diurnal maxima, respectively. The pattern of these rhythms in the stressed rats was flatter, and the animals tested during hours of the night presented greater endurance than those tested during daytime hours. Physiol Behav , a.

Abel EL: Physiological effects of alarm chemosignal emitted during the forced swim test. J Chem Ecol , b. Acta Pathol Jap , Arendt J: Melatonin and the mammalian pineal gland. Chapman and Hall, London Mol Cell Biochem , Biogenic Amines , J Pineal Res , The role of different forms of tumor-associated stress for the regulation of pineal melatonin secretion.

Oncology , Berger J: Why do circadian biorhythms age? J Appl Biomed , Physiol Behav , Brown GM: Light, melatonin and the sleep-wake cycle. J Psychiatry Neurosci , Bunning E: The Physiological Clock. Springer, New York J Biol Rhythms , Carr DB: Plasma melatonin increases during exercise in women.

J Clin Endocrinol Metab , Biochem Biophys Res Comm , Edery I: Circadian rhythms in a nutshell. Physiol Genomics , Falcon J: Cellular circadian clocks in the pineal. Prog Neurobiol , Feigelson P, Greengard O: Immunochemical evidence for increased titers of liver tryptophan pyrrolase during substrate and hormonal enzyme induction. J Biol Chem , Immunol Lett , J Physiol Pt 3 , Lab Invest , Pharmacol Toxicol , Biol Signals , Jenkins RR: Free radical chemistry.

Relation to exercise. Sports Med , Life Sci , Kjaer M, Dela F: Endocrine responses to exercise. In: Hoffman-Goetz L ed. Boca Raton. CRC, , Lavie P: Sleep-wake as a biological rhythm. Ann Rev Psychol , Lopez-Calderon A: Glandulas suprarrenales.

In Tresguerres JAF ed. McGraw-Hill - Interamericana, Madrid , pp. Eur J Pharmacol , Brain Res Bull , Maestroni GJ: The immunoendocrine role of melatonin.

Monteleone P, Maj M, Fuschino A, Kemali D: Physical stress in the middle of the dark phase does not affect light-depressed plasma melatonin levels in humans. Neuroendocrinology , Norris DO: Vertebrate endocrinology. Academic Press, New York Free Radic Biol Med , Ortega E, Forner MA, Barriga C: Exerciseinduced stimulation of murine macrophage chemotaxis: role of corticosterone and prolactin a mediators.

Persengiev S, Kanchev L, Vezenkova G: Circadian patterns of melatonin, corticosterone, and progesterone in male rats subjected to chronic stress: effect of constant illumination. Pevet P: Melatonin and biological rhythms.

Biol Signals Recept , Plytycz B, Seljelid R: Rhythms of immunity. Arch Imm Ther Exper Warsz , Reiter RJ: The melatonin rhythm: both a clock and a calendar.

Experientia , Chronobiol Int , Bioelectromagnetics , Roberts AC, Martensz ND, Hastings MH, Herbert J: Changes in photoperiod alter the daily rhythms of pineal melatonin content and hypothalamic beta-endorphin content and the luteinizing hormone response to naloxone in the male Syrian hamster. Endocrinology , Simon HB: Exercise and human immune functions. Academic Press, New York , pp. Simonneaux V, Ribelayga C: Generation of the melatonin endocrine message in mammals: a review of the complex regulation of melatonin synthesis by norepinephrine, peptides, and other pineal transmitters.

Pharmacol Rev , Skotnicka E, Hynczak AJ: Melatonin and its possible role in regulation of water and electrolyte metabolism. Med Weter , Skwarlo-Sonta K: Functional connections between the pineal gland and immune system.

Acta Neurobiol Exp Wars , J Exp Zool , South Afr Med J , J Neural Transm , a. Neuroendocrinology , b. Turek FW: Circadian rhythms.

Recent Prog Horm Res , Urbanski HF: Influence of light and the pineal gland on biological rhythms. Humana Press, Totowa , pp. Front Neuroendocrinol , Venditti P, Di Meo S: Effect of training on antioxidant capacity, tissue damage, and endurance of adult male rats.

Int J Sports Med , Proc Soc Exp Biol Med , Factors influencing behavior in the forced swim test. Physiol Behav. Exercise and melatonin in humans: Reciprocal benefits.


Fisiologia Humana by Tresguerres

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