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Complications
Peripheral Neuropathy Phenotyping in Rat Models of Type 2 Diabetes Mellitus: Evaluating Uptake of the Neurodiab Guidelines and Identifying Future Directions
Md Jakir Hossain, Michael D. Kendig, Meg E. Letton, Margaret J. Morris, Ria Arnold
Diabetes Metab J. 2022;46(2):198-221.   Published online March 24, 2022
DOI: https://doi.org/10.4093/dmj.2021.0347
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AbstractAbstract PDFPubReader   ePub   
Diabetic peripheral neuropathy (DPN) affects over half of type 2 diabetes mellitus (T2DM) patients, with an urgent need for effective pharmacotherapies. While many rat and mouse models of T2DM exist, the phenotyping of DPN has been challenging with inconsistencies across laboratories. To better characterize DPN in rodents, a consensus guideline was published in 2014 to accelerate the translation of preclinical findings. Here we review DPN phenotyping in rat models of T2DM against the ‘Neurodiab’ criteria to identify uptake of the guidelines and discuss how DPN phenotypes differ between models and according to diabetes duration and sex. A search of PubMed, Scopus and Web of Science databases identified 125 studies, categorised as either diet and/or chemically induced models or transgenic/spontaneous models of T2DM. The use of diet and chemically induced T2DM models has exceeded that of transgenic models in recent years, and the introduction of the Neurodiab guidelines has not appreciably increased the number of studies assessing all key DPN endpoints. Combined high-fat diet and low dose streptozotocin rat models are the most frequently used and well characterised. Overall, we recommend adherence to Neurodiab guidelines for creating better animal models of DPN to accelerate translation and drug development.

Citations

Citations to this article as recorded by  
  • SIRT3 alleviates painful diabetic neuropathy by mediating the FoxO3a‐PINK1‐Parkin signaling pathway to activate mitophagy
    Jing Yang, Zhuoying Yu, Ye Jiang, Zixian Zhang, Yue Tian, Jie Cai, Min Wei, Yanhan Lyu, Dongsheng Yang, Shixiong Shen, Guo‐Gang Xing, Min Li
    CNS Neuroscience & Therapeutics.2024;[Epub]     CrossRef
  • Compound Qiying Granules alleviates diabetic peripheral neuropathy by inhibiting endoplasmic reticulum stress and apoptosis
    Yan Hu, Chen Chen, Zhengting Liang, Tao Liu, Xiaoling Hu, Guanying Wang, Jinxia Hu, Xiaolin Xie, Zhiyan Liu
    Molecular Medicine.2023;[Epub]     CrossRef
  • HCV affects KATP channels through GnT-IVa-mediated N-glycosylation of GLUT2 on the surface of pancreatic β-cells leading to impaired insulin secretion
    Ben Niu, Lijing Ma, Lixuan Yao, Yating Zhang, Heng Su
    Endocrine.2023;[Epub]     CrossRef
  • Multimodal Comparison of Diabetic Neuropathy in Aged Streptozotocin-Treated Sprague–Dawley and Zucker Diabetic Fatty Rats
    Annalisa Canta, Valentina A. Carozzi, Alessia Chiorazzi, Cristina Meregalli, Norberto Oggioni, Virginia Rodriguez-Menendez, Barbara Sala, Roberto Cosimo Melcangi, Silvia Giatti, Raffaella Lombardi, Roberto Bianchi, Paola Marmiroli, Guido Cavaletti
    Biomedicines.2022; 11(1): 20.     CrossRef
Original Articles
Complications
Influence of Glucose Fluctuation on Peripheral Nerve Damage in Streptozotocin-Induced Diabetic Rats
Yu Ji Kim, Na Young Lee, Kyung Ae Lee, Tae Sun Park, Heung Yong Jin
Diabetes Metab J. 2022;46(1):117-128.   Published online September 9, 2021
DOI: https://doi.org/10.4093/dmj.2020.0275
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Graphical AbstractGraphical Abstract AbstractAbstract PDFPubReader   ePub   
Background
It is unclear whether glycemic variability (GV) is a risk factor for diabetic peripheral neuropathy (DPN), and whether control of GV is beneficial for DPN. The purpose of this study was to investigate the effect of GV on peripheral nerve damage by inducing glucose fluctuation in streptozotocin-induced diabetic rats.
Methods
Rats were divided into four groups: normal (normal glucose group [NOR]), diabetes without treatment (sustained severe hyperglycemia group; diabetes mellitus [DM]), diabetes+once daily insulin glargine (stable hyperglycemia group; DM+LAN), and diabetes+once daily insulin glargine with twice daily insulin glulisine (unstable glucose fluctuation group; DM+Lantus [LAN]+Apidra [API]). We measured anti-oxidant enzyme levels and behavioral responses against tactile, thermal, and pressure stimuli in the plasma of rats. We also performed a quantitative comparison of cutaneous and sciatic nerves according to glucose fluctuation.
Results
At week 24, intraepidermal nerve fiber density was less reduced in the insulin-administered groups compared to the DM group (P<0.05); however, a significant difference was not observed between the DM+LAN and DM+LAN+API groups irrespective of glucose fluctuation (P>0.05; 16.2±1.6, 12.4±2.0, 14.3±0.9, and 13.9±0.6 for NOR, DM, DM+LAN, and DM+LAN+API, respectively). The DM group exhibited significantly decreased glutathione levels compared to the insulin-administered groups (2.64±0.10 μmol/mL, DM+LAN; 1.93±0.0 μmol/mL, DM+LAN+API vs. 1.25±0.04 μmol/mL, DM; P<0.05).
Conclusion
Our study suggests that glucose control itself is more important than glucose fluctuation in the prevention of peripheral nerve damage, and intra-day glucose fluctuation has a limited effect on the progression of peripheral neuropathy in rats with diabetes.

Citations

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  • Glucose Fluctuation Inhibits Nrf2 Signaling Pathway in Hippocampal Tissues and Exacerbates Cognitive Impairment in Streptozotocin-Induced Diabetic Rats
    Haiyan Chi, Yujing Sun, Peng Lin, Junyu Zhou, Jinbiao Zhang, Yachao Yang, Yun Qiao, Deshan Liu, Eusebio Chiefari
    Journal of Diabetes Research.2024; 2024: 1.     CrossRef
  • Artesunate Inhibits Apoptosis and Promotes Survival in Schwann Cells via the PI3K/AKT/mTOR Axis in Diabetic Peripheral Neuropathy
    Xin Zhang, Zhifang Liang, Ying Zhou, Fang Wang, Shan Wei, Bing Tan, Yujie Guo
    Biological and Pharmaceutical Bulletin.2023; 46(6): 764.     CrossRef
  • The Potential of Glucose Treatment to Reduce Reactive Oxygen Species Production and Apoptosis of Inflamed Neural Cells In Vitro
    Juin-Hong Cherng, Shu-Jen Chang, Hsin-Da Tsai, Chung-Fang Chun, Gang-Yi Fan, Kenneth Dean Reeves, King Hei Stanley Lam, Yung-Tsan Wu
    Biomedicines.2023; 11(7): 1837.     CrossRef
  • Relationship between acute glucose variability and cognitive decline in type 2 diabetes: A systematic review and meta-analysis
    Haiyan Chi, Min Song, Jinbiao Zhang, Junyu Zhou, Deshan Liu, Victor Manuel Mendoza-Nuñez
    PLOS ONE.2023; 18(9): e0289782.     CrossRef
Drug/Regimen
Metformin Preserves Peripheral Nerve Damage with Comparable Effects to Alpha Lipoic Acid in Streptozotocin/High-Fat Diet Induced Diabetic Rats
Sun Hee Kim, Tae Sun Park, Heung Yong Jin
Diabetes Metab J. 2020;44(6):842-853.   Published online May 28, 2020
DOI: https://doi.org/10.4093/dmj.2019.0190
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  • 12 Web of Science
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AbstractAbstract PDFPubReader   ePub   
Background

Metformin is widely marketed medication for the treatment of diabetes, but its pharmacological effect on diabetic peripheral neuropathy remains unclear. In this study, the effect of metformin on peripheral nerves in diabetic rats was investigated using diverse neuronal parameters of nerve fibers.

Methods

Rats were assigned to one of four groups (n=7 to 10 per group): normal, diabetes mellitus (DM), DM+metformin (100 mg/kg), and DM+alpha lipoic acid (ALA, 100 mg/kg). DM was induced by streptozotocin/high-fat diet (STZ/HFD). After 12 weeks, the sensory thresholds to mechanical and heat stimuli were assessed. Repeated sensory tests, immunofluorescence microscopic comparison of peripheral nerves, and biochemical blood analysis were performed after 24 weeks.

Results

Both DM+metformin and DM+ALA groups showed similar trends to diverse sensory tests at 24 weeks compared to DM group although the degree of change were different according to the stimulated senses. There was no significant difference in the comparison of the intraepidermal nerve fiber density (IENFD) of peripheral nerves between the DM+metformin and DM+ALA groups (11.83±0.07 fibers/mm vs. 12.37±1.82 fibers/mm, respectively). Both groups showed preserved IENFD significantly compared with DM group (8.46±1.98 fibers/mm, P<0.05). Sciatic nerve morphology of the experimental animals showed a similar trend to the IENFD, with respect to axonal diameter, myelin sheath thickness, and myelinated fiber diameter.

Conclusion

Metformin has beneficial pharmacological effects on the preservation of peripheral nerves in diabetic rats and its effects are comparable to those of ALA.

Citations

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  • Metformin improves diabetic neuropathy by reducing inflammation through up-regulating the expression of miR-146a and suppressing oxidative stress
    Fengmin Liu, Fangqin You, Lihang Yang, Siyun Wang, Diya Xie
    Journal of Diabetes and its Complications.2024; 38(6): 108737.     CrossRef
  • Effect of Metformin on the Functional and Electrophysiological Recovery of Crush Injury-Induced Facial Nerve Paralysis in Diabetic Rats
    Kyung Hoon Sun, Cheol Hee Choi, Gwang-Won Cho, Chul Ho Jang
    Journal of Personalized Medicine.2023; 13(9): 1317.     CrossRef
  • Is metformin neuroprotective against diabetes mellitus-induced neurodegeneration? An updated graphical review of molecular basis
    Fatemeh Karami, Hamidreza Jamaati, Natalie Coleman-Fuller, Maryam Shokrian Zeini, A. Wallace Hayes, Mina Gholami, Mahsa Salehirad, Mohammad Darabi, Majid Motaghinejad
    Pharmacological Reports.2023; 75(3): 511.     CrossRef
  • Early Diagnosis through Estimation of Inflammatory Biomarkers and the Neuroprotective Role of Metformin in Diabetic Peripheral Neuropathy
    Laxmi Sri, Prabhakar Orsu
    International Journal of Pharmaceutical Sciences and Nanotechnology(IJPSN).2023; 16(2): 6427.     CrossRef
  • Bidirectional association between diabetic peripheral neuropathy and vitamin B12 deficiency: Two longitudinal 9-year follow-up studies using a national sample cohort
    Heung Yong Jin, Kyung Ae Lee, Yu Ji Kim, In Sun Gwak, Tae Sun Park, Sang Woo Yeom, Jong Seung Kim
    Primary Care Diabetes.2023; 17(5): 436.     CrossRef
  • An overview of painful diabetic peripheral neuropathy: Diagnosis and treatment advancements
    Jonathan M. Hagedorn, Alyson M. Engle, Tony K. George, Jay Karri, Newaj Abdullah, Erik Ovrom, Jhon E. Bocanegra-Becerra, Ryan S. D'Souza
    Diabetes Research and Clinical Practice.2022; 188: 109928.     CrossRef
  • The role of MicroRNA networks in tissue-specific direct and indirect effects of metformin and its application
    Qinzhi Yang, Gang Wang, Dan Fang, Xiaojun Gao, Yu Liang, Liqun Wang, Jianbo Wu, Min Zeng, Mao Luo
    Biomedicine & Pharmacotherapy.2022; 151: 113130.     CrossRef
  • Is metformin a possible treatment for diabetic neuropathy?
    Juechun Wei, Yanling Wei, Meiyan Huang, Peng Wang, Shushan Jia
    Journal of Diabetes.2022; 14(10): 658.     CrossRef
  • Metformin as a potential therapeutic for neurological disease: mobilizing AMPK to repair the nervous system
    Sarah Demaré, Asha Kothari, Nigel A. Calcutt, Paul Fernyhough
    Expert Review of Neurotherapeutics.2021; 21(1): 45.     CrossRef
  • Metformin Preserves Peripheral Nerve Damage with Comparable Effects to Alpha Lipoic Acid in Streptozotocin/High-Fat Diet Induced Diabetic Rats (Diabetes Metab J 2020;44:842-53)
    Bo Kyung Koo
    Diabetes & Metabolism Journal.2021; 45(1): 125.     CrossRef
  • Metformin Preserves Peripheral Nerve Damage with Comparable Effects to Alpha Lipoic Acid in Streptozotocin/High-Fat Diet Induced Diabetic Rats (Diabetes Metab J 2020;44:842-53)
    Sun Hee Kim, Tae Sun Park, Heung Yong Jin
    Diabetes & Metabolism Journal.2021; 45(1): 127.     CrossRef
  • Impacts of statin and metformin on neuropathy in patients with type 2 diabetes mellitus: Korean Health Insurance data
    Hong Ki Min, Se Hee Kim, Jong Han Choi, Kyomin Choi, Hae-Rim Kim, Sang-Heon Lee
    World Journal of Clinical Cases.2021; 9(33): 10198.     CrossRef
Brief Reports
Complications
Effect of Empagliflozin, a Selective Sodium-Glucose Cotransporter 2 Inhibitor, on Kidney and Peripheral Nerves in Streptozotocin-Induced Diabetic Rats
Kyung Ae Lee, Heung Yong Jin, Na Young Lee, Yu Ji Kim, Tae Sun Park
Diabetes Metab J. 2018;42(4):338-342.   Published online April 25, 2018
DOI: https://doi.org/10.4093/dmj.2017.0095
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  • 17 Web of Science
  • 19 Crossref
AbstractAbstract PDFPubReader   

The effect of sodium-glucose cotransporter 2 inhibitors on peripheral nerves and kidneys in diabetes mellitus (DM) remains unexplored. Therefore, this study aimed to explore the effect of empagliflozin in diabetic rats. DM in rats was induced by streptozotocin injection, and diabetic rats were treated with empagliflozin 3 or 10 mg/kg. Following 24-week treatment, response thresholds to four different stimuli were tested and found to be lower in diabetic rats than in normal rats. Empagliflozin significantly prevented hypersensitivity (P<0.05) and the loss of skin intraepidermal nerve fibers, and mesangial matrix expansion in diabetic rats. Results of this study demonstrate the potential therapeutic effects of empagliflozin for the treatment of diabetic peripheral neuropathy and nephropathy.

Citations

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  • Effect of empagliflozin in peripheral diabetic neuropathy of patients with type 2 diabetes mellitus
    Sahar Mohamed El-Haggar, Yasser Mostafa Hafez, Amira Mohamed El Sharkawy, Maha Khalifa
    Medicina Clínica.2024;[Epub]     CrossRef
  • A Review of Recent Pharmacological Advances in the Management of Diabetes-Associated Peripheral Neuropathy
    Osman Syed, Predrag Jancic, Nebojsa Nick Knezevic
    Pharmaceuticals.2023; 16(6): 801.     CrossRef
  • Renal intrinsic cells remodeling in diabetic kidney disease and the regulatory effects of SGLT2 Inhibitors
    Wenwen Guo, Han Li, Yixuan Li, Wen Kong
    Biomedicine & Pharmacotherapy.2023; 165: 115025.     CrossRef
  • A systematic review on renal effects of SGLT2 inhibitors in rodent models of diabetic nephropathy
    Aqsa Ashfaq, Myriam Meineck, Andrea Pautz, Ebru Arioglu-Inan, Julia Weinmann-Menke, Martin C. Michel
    Pharmacology & Therapeutics.2023; 249: 108503.     CrossRef
  • The impact of canagliflozin on the risk of neuropathy events: A post-hoc exploratory analysis of the CREDENCE trial
    Jinlan Liao, Amy Kang, Chao Xia, Tamara Young, Gian Luca Di Tanna, Clare Arnott, Carol Pollock, Arun V. Krishnan, Rajiv Agarwal, George Bakris, David M. Charytan, Dick de Zeeuw, Hiddo J.L. Heerspink, Adeera Levin, Bruce Neal, David C. Wheeler, Hong Zhang,
    Diabetes & Metabolism.2022; 48(4): 101331.     CrossRef
  • Sodium Glucose Cotransporter-2 Inhibitor Protects Against Diabetic Neuropathy and Nephropathy in Modestly Controlled Type 2 Diabetes: Follow-Up Study
    Fukashi Ishibashi, Aiko Kosaka, Mitra Tavakoli
    Frontiers in Endocrinology.2022;[Epub]     CrossRef
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    Sandy R. Botros, Asmaa I. Matouk, Aliaa Anter, Mohamed M.A. Khalifa, Gehan H. Heeba
    Environmental Toxicology and Pharmacology.2022; 94: 103907.     CrossRef
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    Archives of Pharmacal Research.2022; 45(7): 475.     CrossRef
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    Seon Mee Kang
    The Journal of Korean Diabetes.2022; 23(4): 222.     CrossRef
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    Adel T. Osman, Souty M.Z. Sharkawi, Mohamed I.A. Hassan, Amira M. Abo-youssef, Ramadan A.M. Hemeida
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    Tushar Issar, Natalie C.G. Kwai, Ann M. Poynten, Ria Arnold, Kerry-Lee Milner, Arun V. Krishnan
    Clinical Neurophysiology.2021; 132(10): 2532.     CrossRef
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    Sanjana Mehta, Parminder Nain, Bimal K Agrawal, Rajinder P Singh, Jaspreet Kaur, Sabyasachi Maity, Aniruddha Bhattarcharjee, Jagannadha Peela, Shreya Nauhria, Samal Nauhria
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    Ahmed M. Kabel, Remon S. Estfanous, Majed M. Alrobaian
    Respiratory Physiology & Neurobiology.2020; 273: 103316.     CrossRef
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    Stephanie A. Eid, Phillipe D. O’Brien, Lucy M. Hinder, John M. Hayes, Faye E. Mendelson, Hongyu Zhang, Lixia Zeng, Katharina Kretzler, Samanthi Narayanan, Steven F. Abcouwer, Frank C. Brosius, Subramaniam Pennathur, Masha G. Savelieff, Eva L. Feldman
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    Pharmacological Reports.2019; 71(6): 1034.     CrossRef
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    Chenguang Li, Jie Zhang, Mei Xue, Xiaoyu Li, Fei Han, Xiangyang Liu, Linxin Xu, Yunhong Lu, Ying Cheng, Ting Li, Xiaochen Yu, Bei Sun, Liming Chen
    Cardiovascular Diabetology.2019;[Epub]     CrossRef
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    Sungjin Chung, Soojeong Kim, Mina Son, Minyoung Kim, Eun Sil Koh, Seok Joon Shin, Seung-Hyun Ko, Ho-Shik Kim
    Frontiers in Physiology.2019;[Epub]     CrossRef
Complication
Morphologic Comparison of Peripheral Nerves in Adipocyte Tissue from db/db Diabetic versus Normal Mice
Kyung Ae Lee, Na Young Lee, Tae Sun Park, Heung Yong Jin
Diabetes Metab J. 2018;42(2):169-172.   Published online March 21, 2018
DOI: https://doi.org/10.4093/dmj.2018.42.2.169
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AbstractAbstract PDFPubReader   

Present study investigated the morphologic changes of autonomic nerves in the adipose tissue in diabetic animal model. Male obese type 2 diabetic db/db mice and age matched non-diabetic db/m control mice were used. Epididymal adipose tissue from diabetic db/db mice with that from control heterozygous db/m mice was compared using confocal microscopy-based method to visualize intact whole adipose tissue. Immunohistochemistry with tyrosine hydroxylase for sympathetic (SP), choline acetyltransferase for parasympathetic (PSP), and protein gene product 9.5 (PGP 9.5) for whole autonomic nerves was performed. The quantity of immunostained portion of SP, PSP, and PGP 9.5 stained nerve fibers showed decreased trend in diabetic group; however, the ratio of SP/PSP of adipose tissue was higher in diabetic group compared with control group as follows (0.70±0.30 vs. 0.95±0.25, P<0.05; normal vs. diabetic, respectively). Both SP and PSP nerve fibers were observed in white adipose tissue and PSP nerve fibers were suggested as more decreased in diabetes based on our observation.

Effect of Granulocyte Colony-Stimulating Factor on the Peripheral Nerves in Streptozotocin-Induced Diabetic Rat
Kyung Ae Lee, Kyung Taek Park, Hea Min Yu, Heung Yong Jin, Hong Sun Baek, Tae Sun Park
Diabetes Metab J. 2013;37(4):286-290.   Published online August 14, 2013
DOI: https://doi.org/10.4093/dmj.2013.37.4.286
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  • 5 Crossref
AbstractAbstract PDFPubReader   

There are controversial reports about the effect of granulocyte colony-stimulating factor (G-CSF) in peripheral nerve protection. Therefore, the present study aimed to investigate the effect of G-CSF on peripheral nerves in streptozotocin (STZ) induced diabetic rats. After STZ or vehicle injection, rats were divided into five groups (n=6) as follows: normal+vehicle, normal+G-CSF (50 µg/kg for 5 days), diabetes mellitus (DM)+vehicle, DM+G-CSF (50 µg/kg for 5 days), and DM+G-CSF extension (50 µg/kg for 5 days and followed by two injections per week up to 24 weeks). Our results showed that the current perception threshold was not significantly different among experimental groups. G-CSF treatment inhibited the loss of cutaneous nerves and gastric mucosal small nerve fibers in morphometric comparison, but statistical significance was not observed. The present results demonstrated that G-CSF has no harmful but minimal beneficial effects with respect to peripheral nerve preservation in diabetic rats.

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    Endocrine.2020; 70(3): 465.     CrossRef
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    Lin Sun, Shugang Xi, Guangyu He, Zhuo Li, Xiaokun Gang, Chenglin Sun, Weiying Guo, Guixia Wang
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