Developmental Effects of Melatonin on Synaptic Plasticity of Hippocampal CA۱ Neurons in Visual Deprived Rats

سال انتشار: 1395
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 173

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شناسه ملی سند علمی:

JR_JKMU-23-6_003

تاریخ نمایه سازی: 19 دی 1401

چکیده مقاله:

Background & Aims: Change in visual experience impairs circadian rhythms. In this study, The effects of visual deprivation during critical period of brain development and melatonin intake on synaptic plasticity of hippocampal CA۱ neurons were evaluated. Methods: This experimental study was done on male rats kept in standard ۱۲ hour light/dark condition (Light Reared-LR) or in complete darkness (Dark Reared-DR). Each group, was divided into ۳ sub groups of ۲, ۴ and ۶ week old rats (n=۱۶). Excitatory post synaptic field potentials were recorded from dendrite of CA۱ area neurons. Then, half of animals in each group received melatonin via ICV and field potentials recording was repeated. Finally, using tetanic stimulation, Long-term potentiation (LTP) was induced. Results: The amplitude of basic responses of the LR animals decreased with age incaease (P<۰.۰۱). Visual deprivation and also melatonin increased the amplitude of basic responses of the DR group (P<۰.۰۱), and inhibited LTP induction in CA۱ circuits. In comparison to the LR group, melatonin injection had less destructive effect on the LTP induction in the DR group (P<۰.۰۰۱). Conclusion: Visual deprivation during critical period of brain development increases basic responses of rat’s CA۱ neurons and inhibits LTP induction in these neurons, time dependently. Also, the visual deprivation opposes the destructive effects of melatonin on LTP induction in CA۱ neurons in a time-dependent manner.

نویسندگان

Sayyed Alireza Talaei

Ph.D. Candidate of Neuroscience, Physiology Research Center, Kashan University of Medical Sciences, Kashan, Iran

Mahmoud Salami

Professor of Physiology, Physiology Research Center, Kashan University of Medical Sciences, Kashan, Iran

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  • Voss P. Sensitive and critical periods in visual sensory deprivation. ...
  • Hensch TK. Critical period plasticity in local cortical circuits. Nat ...
  • Morishita H, Hensch TK. Critical period revisited: impact on vision. ...
  • Tropea D, Van Wart A, Sur M. Molecular mechanisms of ...
  • Beston BR, Jones DG, Murphy KM. Experience-Dependent Changes in Excitatory ...
  • Montey KL, Quinlan EM. Recovery from chronic monocular deprivation following ...
  • Sloviter RS, Lomo T. Updating the lamellar hypothesis of hippocampal ...
  • Wang SH, Morris RG. Hippocampal-neocortical interactions in memory formation, consolidation, ...
  • Tsanov M, Manahan-Vaughan D. Synaptic plasticity from visual cortex to ...
  • Ge S, Yang CH, Hsu KS, Ming GL, Song H. ...
  • Talaei SA, Salami M. Sensory experience differentially underlies developmental alterations ...
  • Novkovic T, Mittmann T, Manahan-Vaughan D. BDNF contributes to the ...
  • Hardeland Rd, Cardinali DP, Srinivasan V, Spence DW, Brown GM, ...
  • Pandi-Perumal SR, Srinivasan V, Maestroni GJ, Cardinali DP, Poeggeler B, ...
  • Stewart LS, Leung LS. Hippocampal melatonin receptors modulate seizure threshold. ...
  • Wan Q, Man HY, Liu F, Braunton J, Niznik HB, ...
  • Ozcan M, Yilmaz B, Carpenter DO. Effects of melatonin on ...
  • Yang L, Pan Z, Zhou L, Lin S, Wu K. ...
  • Paxinos G, Watson C. The Rat Brain in Stereotaxic Coordinates. ...
  • Kerchner GA, Nicoll RA. Silent synapses and the emergence of ...
  • Goel A, Jiang B, Xu LW, Song L, Kirkwood A, ...
  • Yashiro K, Philpot BD. Regulation of NMDA receptor subunit expression ...
  • Liu X-B, Murray KD, Jones EG. Switching of NMDA Receptor ...
  • Koyanagi Y, Yamamoto K, Oi Y, Koshikawa N, Kobayashi M. ...
  • Tyzio R, Minlebaev M, Rheims S, Ivanov A, Jorquera I, ...
  • Quinlan EM, Philpot BD, Huganir RL, Bear MF. Rapid, experience-dependent ...
  • Morales B, Choi SY, Kirkwood A. Dark rearing alters the ...
  • Berry RL, Perkins AT, Teyler TJ. Visual deprivation decreases long-term ...
  • Ireland DR, Abraham WC. Mechanisms of group I mGluR-Dependent long-term ...
  • Molnár E. Long-term potentiation in cultured hippocampal neurons. Semin Cell ...
  • Jin SX, Feig LA. Long-term potentiation in the CA۱ hippocampus ...
  • Erisir A, Harris JL. Decline of the critical period of ...
  • Musshoff U, Riewenherm D, Berger E, Fauteck JD, Speckmann EJ. ...
  • Zitouni M, Pevet P, Masson-Pevet M. Brain and pituitary melatonin ...
  • Chaudhury D, Wang LM, Colwell CS. Circadian regulation of hippocampal ...
  • Marquez de Prado B, Castaneda TR, Galindo A, del Arco ...
  • Khaldy H, Leon J, Escames G, Bikjdaouene L, Garcia JJ, ...
  • Iuvone PM, Boatright JH, Tosini G, Ye K. N-acetylserotonin: circadian ...
  • Miller E, Morel A, Saso L, Saluk J. Melatonin Redox ...
  • Dominguez-Alonso A, Valdes-Tovar M, Solis-Chagoyan H, Benitez-King G. Melatonin stimulates ...
  • Ramirez-Rodriguez G, Gomez-Sanchez A, Ortiz-Lopez L. Melatonin maintains calcium-binding calretinin-positive ...
  • Corrales A, Vidal R, Garcia S, Vidal V, Martinez P, ...
  • Escames G, Leon J, Lopez LC, Acuna-Castroviejo D. Mechanisms of ...
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