The Effect of Gestational Diabetes Mellitus on Sciatic Nerve in Adult Offspring Rats

Gestational diabetes mellitus (GDM) is one form of diabetes affect approximately 7 % of pregnancies. Diabetic peripheral neuropathy (DPN) is a common complication of diabetes that is associated with loss of nerve fibers, myelin abnormalities and significant decrease in the expression of myelin basic...

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Autores principales: Ameri,Mehdi, Ghafari,Soraya, Nazari,Zahra, Mehdizadeh,Mehdi, Shekari,Majid Asadi, Golalipour,Mohammadjafar
Lenguaje:English
Publicado: Sociedad Chilena de Anatomía 2017
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000100026
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spelling oai:scielo:S0717-950220170001000262017-04-18The Effect of Gestational Diabetes Mellitus on Sciatic Nerve in Adult Offspring RatsAmeri,MehdiGhafari,SorayaNazari,ZahraMehdizadeh,MehdiShekari,Majid AsadiGolalipour,Mohammadjafar Gestational diabetes mellitus Sciatic nerve Myelin basic protein Schwannocytus (Schwann cell) Gestational diabetes mellitus (GDM) is one form of diabetes affect approximately 7 % of pregnancies. Diabetic peripheral neuropathy (DPN) is a common complication of diabetes that is associated with loss of nerve fibers, myelin abnormalities and significant decrease in the expression of myelin basic protein (MBP) in peripheral nerves. This study was done to determine the effect of induced diabetes during pregnancy on sciatic nerve in adult rat offspring. In this study, wistar rats' dams were allocated to control and diabetic groups. Diabetic rats were received 40 mg/kg/body weight of streptozotocin (STZ) on the first day of gestation. Six offspring of each group were randomly selected on 12 weeks postnatal and histopathological changes in their nerve tissue were examined through H&E staining and transmission electron microscopy. Furthermore, the expression of MBP in sciatic nerve was examined by immunohistochemistry. We found that the myelinated fiber number of sciatic nerve in offspring of diabetic rats was reduced compared to the controls, but this difference was not significant. The average thickness of the myelin sheath of sciatic nerve fibers in the control and GDM was 97.1±0.1and 94.1±0.2 µm, respectively that the difference was not statistically significant. The expression of MBP protein in the myelin sheath of both groups was similar. TEM results showed that myelin sheath of diabetic offspring had not any changes compared to control. Atrophy of axons and schwannocytus (Schwann cells) alterations were not observed in diabetic offspring. Induction of diabetes during pregnancy reduced the number of nerve fibers and thickness of the myelin sheath. But it has no effect on MBP expression and schwannocytus morphology.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.35 n.1 20172017-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000100026en10.4067/S0717-95022017000100026
institution Scielo Chile
collection Scielo Chile
language English
topic Gestational diabetes mellitus
Sciatic nerve
Myelin basic protein
Schwannocytus (Schwann cell)
spellingShingle Gestational diabetes mellitus
Sciatic nerve
Myelin basic protein
Schwannocytus (Schwann cell)
Ameri,Mehdi
Ghafari,Soraya
Nazari,Zahra
Mehdizadeh,Mehdi
Shekari,Majid Asadi
Golalipour,Mohammadjafar
The Effect of Gestational Diabetes Mellitus on Sciatic Nerve in Adult Offspring Rats
description Gestational diabetes mellitus (GDM) is one form of diabetes affect approximately 7 % of pregnancies. Diabetic peripheral neuropathy (DPN) is a common complication of diabetes that is associated with loss of nerve fibers, myelin abnormalities and significant decrease in the expression of myelin basic protein (MBP) in peripheral nerves. This study was done to determine the effect of induced diabetes during pregnancy on sciatic nerve in adult rat offspring. In this study, wistar rats' dams were allocated to control and diabetic groups. Diabetic rats were received 40 mg/kg/body weight of streptozotocin (STZ) on the first day of gestation. Six offspring of each group were randomly selected on 12 weeks postnatal and histopathological changes in their nerve tissue were examined through H&E staining and transmission electron microscopy. Furthermore, the expression of MBP in sciatic nerve was examined by immunohistochemistry. We found that the myelinated fiber number of sciatic nerve in offspring of diabetic rats was reduced compared to the controls, but this difference was not significant. The average thickness of the myelin sheath of sciatic nerve fibers in the control and GDM was 97.1±0.1and 94.1±0.2 µm, respectively that the difference was not statistically significant. The expression of MBP protein in the myelin sheath of both groups was similar. TEM results showed that myelin sheath of diabetic offspring had not any changes compared to control. Atrophy of axons and schwannocytus (Schwann cells) alterations were not observed in diabetic offspring. Induction of diabetes during pregnancy reduced the number of nerve fibers and thickness of the myelin sheath. But it has no effect on MBP expression and schwannocytus morphology.
author Ameri,Mehdi
Ghafari,Soraya
Nazari,Zahra
Mehdizadeh,Mehdi
Shekari,Majid Asadi
Golalipour,Mohammadjafar
author_facet Ameri,Mehdi
Ghafari,Soraya
Nazari,Zahra
Mehdizadeh,Mehdi
Shekari,Majid Asadi
Golalipour,Mohammadjafar
author_sort Ameri,Mehdi
title The Effect of Gestational Diabetes Mellitus on Sciatic Nerve in Adult Offspring Rats
title_short The Effect of Gestational Diabetes Mellitus on Sciatic Nerve in Adult Offspring Rats
title_full The Effect of Gestational Diabetes Mellitus on Sciatic Nerve in Adult Offspring Rats
title_fullStr The Effect of Gestational Diabetes Mellitus on Sciatic Nerve in Adult Offspring Rats
title_full_unstemmed The Effect of Gestational Diabetes Mellitus on Sciatic Nerve in Adult Offspring Rats
title_sort effect of gestational diabetes mellitus on sciatic nerve in adult offspring rats
publisher Sociedad Chilena de Anatomía
publishDate 2017
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000100026
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