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Information Journal Paper

Title

Behavioral and electrophysiological aspects of cognition in neonate rats lactated by morphine addicted mothers

Pages

  1059-1064

Abstract

 Objective(s): In addition to genetic factors, environmental phenomena during postnatal age highly affect development and, in turn, function of the brain. The present work evaluates if Morphine consumption during Lactation period influences the spatial performances and Synaptic plasticity in Rats at neonatal period of age. Materials and Methods: Three groups of mothers were subcutaneously administered by 5 (M5), 10 (M10) or 20 (M20) mg/kg Morphine every 12 hours during the Lactation period. At 45 days old, their offspring were introduced to Morris water maze for assessment of spatial learning and memory. Basic field excitatory post-synaptic potentials (fEPSPs) were recorded in the CA1 area of Hippocampus and, then, long term potentiation (LTP) was induced by tetanic stimulation. Results: We found that the M10 and M20 Rats spent more time and traveled longer distance to find the hidden platform of maze when compared to the control animals (P<0. 05 for all comparisons). Similarly, these two Morphine-exposed groups were inferior in the memory consolidation compared to their control counterparts. Comparing control and M20 Rats revealed that Morphine exposure decreases the mean amplitude and slope 10-90% of fEPSPs about 30 percent (P<0. 001 for both comparisons) and inhibits the LTP induction in the CA1 area circuits. Conclusion: The present study provides behavioral and electrophysiological proofs for negative effect of Morphine on the hippocampal-related function in the neonatally Morphine-exposed Rats.

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    Cite

    APA: Copy

    Aghighi, Fatemeh, Mohammadifar, Mojgan, Banafsheh, Hamidreza, SALAMI, MAHMOUD, & TALAEI, SAYYED ALIREZA. (2019). Behavioral and electrophysiological aspects of cognition in neonate rats lactated by morphine addicted mothers. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, 22(9), 1059-1064. SID. https://sid.ir/paper/722856/en

    Vancouver: Copy

    Aghighi Fatemeh, Mohammadifar Mojgan, Banafsheh Hamidreza, SALAMI MAHMOUD, TALAEI SAYYED ALIREZA. Behavioral and electrophysiological aspects of cognition in neonate rats lactated by morphine addicted mothers. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES[Internet]. 2019;22(9):1059-1064. Available from: https://sid.ir/paper/722856/en

    IEEE: Copy

    Fatemeh Aghighi, Mojgan Mohammadifar, Hamidreza Banafsheh, MAHMOUD SALAMI, and SAYYED ALIREZA TALAEI, “Behavioral and electrophysiological aspects of cognition in neonate rats lactated by morphine addicted mothers,” IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, vol. 22, no. 9, pp. 1059–1064, 2019, [Online]. Available: https://sid.ir/paper/722856/en

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