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Ther hand, recent studies showed that HFD feeding causes obesity, T2DM, and cognitive impairment, but is not sufficient to cause AD [45,46]. Therefore, it's likely that chronic HFD feeding which results in peripheral insulin resistance may provide a second-hit, and that combined with low-dose nitrosamine or other environmental exposures, it may increase the severity of neurodegeneration. In the pr
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Fasting blood glucose and serum insulin concentrations were significantly lower in the LFD+VEH treated control group compared with all other groups. The mean levels of both serum glucose and insulin were next higher in the LFD+NDEA group, followed by the HFD group. The HFD+NDEA treated rats had the highest mean serum glucose and insulin levels. Correspondingly, serum leptin levels were significant
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Res of AD cerebellar atrophy include, reductions in Purkinje cell population, atrophy of the molecular and granule cell layers [68], increased amyloid deposition and gliosis in the cortex [69]; increased ubiquitin-immunoreactivity in senile plaques and degenerating neurites [70]; extensive abnormalities in dendritic spine density and synaptic structure in vestibulocerebellar, visual, and auditory
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Ysiol Cell Physiol. 2012;302(2):C383?91. 68. Sachdev U, Cui X, Hong G, Namkoong S, Karlsson JM, Baty CJ, et al. High mobility group box 1 promotes endothelial cell angiogenic behavior in vitro and improves muscle perfusion in vivo in response to ischemic injury. J Vasc Surg. 2012;55(1):180?1.Yang et al. Cell Bioscience (2015) 5:Page 10 of69. Kang R, Livesey KM, Zeh HJ, Loze MT, Tang D. HMGB1: a
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Fects is clearly warranted. In this regard, guidance may be obtained from what is already known about STZ-induced diseases. STZ, like other N-nitroso compounds, causes cellular injury and disease by functioning as: 1) an alkylating agent and potent mutagen [14]; 2) an inducer of DNA adducts leading to increased apoptosis [23]; 3) a mediator of unscheduled DNA synthesis, triggering cell death [14];
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N exist inTable 2 High Fat Diet Feeding and NDEA Treatment Cause Type 2 Diabetes MellitusAssay Body Wt (g) Glucose (mg/dL) Insulin (ng/ml) Leptin Adiponectin Triglyceride (mg/ml) Free Fatty Acids (mM/mg prot) Cholesterol (mg/ml) LFD+VEH 265.100 ?14.050 111.5 ?1.66 0.0611 ?0.017 4.649 ?0.789 20864 ?1454 0.399 ?0.028 0.150 ?0.003 0.943 ?0.024 LFD+NDEA 266.600 ?19.970 128.8* ?4.31 0.163* ?0.038 4.775
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Urs), rats were sacrificed by i.p. injection of pentobarbital (120 mg/kg). Blood and cerebella were harvested immediately. Blood or serum was used to measure glucose, insulin, cholesterol, triglycerides, and free fatty acid levels, as previously described [45,46]. Cerebella were harvested for histopathological, biochemical, and molecular studies. For histopathology, tissue samples were immersion f
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S described elsewhere [79]. For molecular and biochemical assays, cerebella were snap-frozen in a dry ice-methanol bath and stored at -80 . We studied cerebellar tissue because the cerebellum: 1) requires intact insulin/IGF signaling to maintain its structural and functional integrity [80,81]; 2) is severely damaged by i.c.-STZ mediated neurodegeneration [19,22]; 3) although relatively spared, it