The establishment of diabetic peripheral neuropathy model in spontaneous diabetic GK rats
10.11958/20150225
- VernacularTitle:自发性糖尿病GK大鼠糖尿病周围神经病变模型的建立
- Author:
Xiaoxu FU
;
Lulin FENG
;
Xiyu ZHANG
;
Yun HU
;
Xiaoya NAN
;
Chunguang XIE
;
Lian DU
- Publication Type:Journal Article
- Keywords:
diabetic neuropathies;
disease models,animal;
Goto-Kakizaki rats
- From:
Tianjin Medical Journal
2016;44(8):989-992
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a simple diabetic peripheral neuropathy (DPN) rat model with the high fat-fed in GK rats. Methods A total of 30 GK rats (7-8 weeks) were fed with high-fat diet to establish the DPN model. Thirty normal Wistar rats were fed with ordinary diet (control group). The blood-sugar value, body mass, water-intake and food-intake were monitored every week in two groups. The serum level of glycosylated hemoglobin, the right sciatic nerve conduction velocity were detected at 8, 12 and 16 weeks respectively. The left sciatic nerve was used for HE and TUNEL staining. Results The manifestations of polydipsia, polyphagia and growth retardation were gradually appeared in GK rats. After 12 and 16 weeks, the blood-sugar and glycosylated hemoglobin were significantly increased in GK rats compared with those of normal Wistar rats (P < 0.01). The sensory nerve conduction velocity decreased obviously (P < 0.01). And motor nerve conduction velocity showed a certain decline trend (12 week P < 0.05,16 week P > 0.05). The sciatic nerve pathological features and Schwann cell apoptosis suggested that the model of DPN was successfully established (apoptosis index, P <0.01). Conclusion GK rats fed by high-fat diet are the satisfactory models of the DPN in experimental research. And 12-week is a suitable and economical time for molding.
