Metformin ameliorates peripheral neuropathy in diabetic rats by downregulating autophagy via the AMPK pathway

ABSTRACT Objective: Diabetic neuropathy (DN) is an important complication of diabetes mellitus. Autophagy is considered to be potentially involved in the regulation of DN. Metformin is broadly utilized in the first-line treatment of diabetes. The present work aimed to assess whether and how metform...

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Main Authors: Fangqin You, Diya Xie, Cheng Li, Lihang Yang, Fengmin Liu
Format: Article
Language:English
Published: Brazilian Society of Endocrinology and Metabolism 2025-01-01
Series:Archives of Endocrinology and Metabolism
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Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2359-39972024001000307&lng=en&tlng=en
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author Fangqin You
Diya Xie
Cheng Li
Lihang Yang
Fengmin Liu
author_facet Fangqin You
Diya Xie
Cheng Li
Lihang Yang
Fengmin Liu
author_sort Fangqin You
collection DOAJ
description ABSTRACT Objective: Diabetic neuropathy (DN) is an important complication of diabetes mellitus. Autophagy is considered to be potentially involved in the regulation of DN. Metformin is broadly utilized in the first-line treatment of diabetes. The present work aimed to assess whether and how metformin exerts protective effects in DN. Materials and methods: A DN rat model induced by streptozotocin (STZ) was established. Metformin was administered to examine its effect on sciatic nerve pathology, and the possible mechanisms involved in this process were explored. Results: Morphological damage was observed in sciatic nerve samples from diabetic animals, accompanied by decreased p-AMPK expression and increased LC-3 levels. Notably, metformin ameliorated the morphological changes in the sciatic nerve by downregulating autophagy via p-AMPK upregulation. Conclusions: These results indicate that metformin attenuates peripheral neuropathy in diabetic rats by regulating autophagy.
format Article
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institution Kabale University
issn 2359-4292
language English
publishDate 2025-01-01
publisher Brazilian Society of Endocrinology and Metabolism
record_format Article
series Archives of Endocrinology and Metabolism
spelling doaj-art-a87c3914a93e4c1dbf5774621539ce492025-01-21T07:45:00ZengBrazilian Society of Endocrinology and MetabolismArchives of Endocrinology and Metabolism2359-42922025-01-0168spe110.20945/2359-4292-2024-0137Metformin ameliorates peripheral neuropathy in diabetic rats by downregulating autophagy via the AMPK pathwayFangqin Youhttps://orcid.org/0009-0002-3561-5446Diya Xiehttps://orcid.org/0000-0001-9062-624XCheng Lihttps://orcid.org/0009-0001-4761-1752Lihang Yanghttps://orcid.org/0000-0002-8219-9089Fengmin Liuhttps://orcid.org/0000-0002-0315-2750ABSTRACT Objective: Diabetic neuropathy (DN) is an important complication of diabetes mellitus. Autophagy is considered to be potentially involved in the regulation of DN. Metformin is broadly utilized in the first-line treatment of diabetes. The present work aimed to assess whether and how metformin exerts protective effects in DN. Materials and methods: A DN rat model induced by streptozotocin (STZ) was established. Metformin was administered to examine its effect on sciatic nerve pathology, and the possible mechanisms involved in this process were explored. Results: Morphological damage was observed in sciatic nerve samples from diabetic animals, accompanied by decreased p-AMPK expression and increased LC-3 levels. Notably, metformin ameliorated the morphological changes in the sciatic nerve by downregulating autophagy via p-AMPK upregulation. Conclusions: These results indicate that metformin attenuates peripheral neuropathy in diabetic rats by regulating autophagy.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2359-39972024001000307&lng=en&tlng=enDiabetesdiabetic neuropathymetforminautophagyAMPK
spellingShingle Fangqin You
Diya Xie
Cheng Li
Lihang Yang
Fengmin Liu
Metformin ameliorates peripheral neuropathy in diabetic rats by downregulating autophagy via the AMPK pathway
Archives of Endocrinology and Metabolism
Diabetes
diabetic neuropathy
metformin
autophagy
AMPK
title Metformin ameliorates peripheral neuropathy in diabetic rats by downregulating autophagy via the AMPK pathway
title_full Metformin ameliorates peripheral neuropathy in diabetic rats by downregulating autophagy via the AMPK pathway
title_fullStr Metformin ameliorates peripheral neuropathy in diabetic rats by downregulating autophagy via the AMPK pathway
title_full_unstemmed Metformin ameliorates peripheral neuropathy in diabetic rats by downregulating autophagy via the AMPK pathway
title_short Metformin ameliorates peripheral neuropathy in diabetic rats by downregulating autophagy via the AMPK pathway
title_sort metformin ameliorates peripheral neuropathy in diabetic rats by downregulating autophagy via the ampk pathway
topic Diabetes
diabetic neuropathy
metformin
autophagy
AMPK
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2359-39972024001000307&lng=en&tlng=en
work_keys_str_mv AT fangqinyou metforminamelioratesperipheralneuropathyindiabeticratsbydownregulatingautophagyviatheampkpathway
AT diyaxie metforminamelioratesperipheralneuropathyindiabeticratsbydownregulatingautophagyviatheampkpathway
AT chengli metforminamelioratesperipheralneuropathyindiabeticratsbydownregulatingautophagyviatheampkpathway
AT lihangyang metforminamelioratesperipheralneuropathyindiabeticratsbydownregulatingautophagyviatheampkpathway
AT fengminliu metforminamelioratesperipheralneuropathyindiabeticratsbydownregulatingautophagyviatheampkpathway