A STUDY ON NISSL BODIES WITHIN MOTOR NEURONS OF THE SPINAL CORD OF PRENATAL AND POSTNATAL CATS

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MANSOURI S.H.; GHAZI S.R.; MONSEFI M.A.Z.

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Journal: JOURNAL OF MEDICAL RESEARCH (JMR) Year:2003 | Volume:1 | Issue:4 Page(s): 1-9

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Title

A STUDY ON NISSL BODIES WITHIN MOTOR NEURONS OF THE SPINAL CORD OF PRENATAL AND POSTNATAL CATS

Author(s)

MANSOURI S.H. | GHAZI S.R. | MONSEFI M.A.Z. | Issue Writer Certificate

Keywords

PERIKARYONQ4

NISSL BODYQ4

SPINAL CORDQ3

CATQ3

Abstract

Background: Communication and adaptation in our world and the understanding of stimulation as well as sending optimum responses and its detection are all entities that demonstrate the need for nerve cells. The knowledge of the developmental stages of these cells can help to solve many problems in life. Materials and Methods: In this study, Nissl bodies in the PERIKARYON of motor neurons of the SPINAL CORD were studied from fetal period to adult age in male CATs. These changes were evaluated microscopically in 2 prenatal groups of mid-stage fetus (day 37) and late-stage fetus (day 52) and in 3 postnatal groups of newborn stage (day 1), sexually adult stage (at 6 months) and adult age (more than 1 year). Each group consisted of 3 CATs. From all 5 groups, tissue sections of 5 micrometers thickness of C1, C4, C8, T4, T7, T13, L4, L7, S2 and Co1 were prepared and stained with thionine method. In all age groups, the motor neurons in IXth lamina (according to Rexed classification) were used to compare the changes in Nissl bodies. Cytoplasmic and nuclear changes of motor neurons within the ventral horns in C8, T4, L7 and S2 SPINAL CORD segments were studied by electron microscopy (EM). The results of both methods were compared. Results: An increase in density and number of Nissl bodies in the cytoplasm of motor neurons of CATs was seen with an increase in age. Lipofuscin granules and degenerated axons were also seen in 6-month-old and adult group segments by EM technique. Conclusion: It can be concluded that with an increase in the growth of animals, the size of motor neurons and Nissl bodies are increased to facilitate communication with the surrounding environment.

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APA: Copy

MANSOURI, S.H., GHAZI, S.R., & MONSEFI, M.A.Z.. (2003). A STUDY ON NISSL BODIES WITHIN MOTOR NEURONS OF THE SPINAL CORD OF PRENATAL AND POSTNATAL CATS. JOURNAL OF MEDICAL RESEARCH (JMR), 1(4), 1-9. SID. https://sid.ir/paper/105789/en

Vancouver: Copy

MANSOURI S.H., GHAZI S.R., MONSEFI M.A.Z.. A STUDY ON NISSL BODIES WITHIN MOTOR NEURONS OF THE SPINAL CORD OF PRENATAL AND POSTNATAL CATS. JOURNAL OF MEDICAL RESEARCH (JMR)[Internet]. 2003;1(4):1-9. Available from: https://sid.ir/paper/105789/en

IEEE: Copy

S.H. MANSOURI, S.R. GHAZI, and M.A.Z. MONSEFI, “A STUDY ON NISSL BODIES WITHIN MOTOR NEURONS OF THE SPINAL CORD OF PRENATAL AND POSTNATAL CATS,” JOURNAL OF MEDICAL RESEARCH (JMR), vol. 1, no. 4, pp. 1–9, 2003, [Online]. Available: https://sid.ir/paper/105789/en

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