Comparison of sensory tests and neuronal quantity of peripheral nerves between streptozotocin (STZ)-induced diabetic rats and paclitaxel (PAC)-treated rats
Autor: | Kyung Ae Lee, Na Young Lee, Hyun Ah Ko, Tae Sun Park, Heung Yong Jin |
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Rok vydání: | 2016 |
Předmět: |
Blood Glucose
Male Pain Threshold 0301 basic medicine medicine.medical_specialty Paclitaxel Physiology Diabetes Mellitus Experimental Rats Sprague-Dawley 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Sensory threshold Internal medicine Diabetes mellitus Nerve Growth Factor medicine Animals Neuroprostanes Thioctic Acid Interleukin-6 business.industry Body Weight Therapeutic effect Peripheral Nervous System Diseases Streptozotocin medicine.disease Antineoplastic Agents Phytogenic Glutathione Sciatic Nerve Sensory Systems Rats Peripheral Disease Models Animal 030104 developmental biology Endocrinology Peripheral neuropathy chemistry Hyperalgesia Immunohistochemistry Plant Preparations business 030217 neurology & neurosurgery medicine.drug |
Zdroj: | Somatosensory & Motor Research. 33:186-195 |
ISSN: | 1369-1651 0899-0220 |
Popis: | Although diabetic peripheral neuropathy (DPN) and chemotherapy-induced peripheral neuropathy (CIPN) are different disease entities, they share similar neuropathic symptoms that impede quality of life for these patients. Despite having very similar downstream effects, there have been no direct comparisons between DPN and CIPN with respect to symptom severity and therapeutic responses. We compared peripheral nerve damage due to hyperglycemia with that caused by paclitaxel (PAC) treatment as represented by biochemical parameters, diverse sensory tests, and immunohistochemistry of cutaneous and sciatic nerves. The therapeutic effects of alpha-lipoic acid and DA-9801 were also compared in the two models. Animals were divided into seven groups (n = 7-10) as follows: normal, diabetes (DM), DM + alpha-lipoic acid 100 mg/kg (ALA), DM + DA-9801 (100 mg/kg), paclitaxel-treated rat (PAC), PAC + ALA (100 mg/kg), and PAC + DA-9801 (100 mg/kg). The sensory thresholds of animals to mechanical, heat, and pressure stimuli were altered by both hyperglycemia and PAC when compared with controls, and the responses to sensory tests were different between both groups. There were no significant differences in the biochemical markers of blood glutathione between DM and PAC groups (p .05). Quantitative comparisons of peripheral nerves by intraepidermal nerve fiber density (IENFD) analysis indicated that the DM and PAC groups were similar (6.18 ± 1.03 vs. 5.01 ± 2.57). IENFD was significantly improved after ALA and DA-9801 treatment in diabetic animals (7.6 ± 1.28, 7.7 ± 1.28, respectively, p .05) but did not reach significance in the PAC-treated groups (6.05 ± 1.76, 5.66 ± 1.26, respectively, p .05). Sciatic nerves were less damaged in the PAC-treated groups compared with the DM groups with respect to axonal diameter and area (8.60 ± 1.14 μm vs. 6.66 ± 1.07 μm, and 59.04 ± 15.16 μm |
Databáze: | OpenAIRE |
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