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OBJECTIVE To explore the effect of paeoniflorin on glucose metabolism， inflammation and oxidative stress in rats with gestational diabetes mellitus （GDM） and its potential mechanism based on nuclear factor-erythroid 2-related factor 2 （Nrf2）/ heme oxygenase-1 （HO-1）/nicotinamide adenine dinucleotide phosphate：quinone oxidoreductase 1 （NQO1） signaling pathway. METHODS The female rats fed with high fat and high sugar diet and the male rats fed with an ordinary diet were caged， the successfully conceived rats were collected， and streptozotocin was injected intraperitoneally once to induce the GDM model. The successfully modeled rats were randomly divided into the model group， metformin hydrochloride group （200 mg/kg metformin by gavage）， paeoniflorin low-， high-dose groups （45， 90 mg/kg paeoniflorin by gavage， respectively）， paeoniflorin+ML385 group （90 mg/kg paeoniflorin by gavage and intraperitoneal injection of 30 mg/kg Nrf2 inhibitor ML385）， with 12 rats in each group； in addition， another 12 conceived rats fed with an ordinary diet were selected as the control group. The rats in each drug group were given the corresponding drug/normal saline， once a day， for 2 consecutive weeks. Glucose metabolism indexes [fasting blood glucose （FBG）， fasting insulin （FINS）， insulin resistance index （HOMA-IR）]， serum inflammatory factors [interleukin-6 （IL-6）， tumor necrosis factor- α （TNF- α）] and renal tissue oxidative stress indexes [superoxide dismutase （SOD）， malondialdehyde （MDA）， glutathione peroxidase （GSH-Px）] were detected； the pathological changes of renal tissue were observed， and the protein expressions of Nrf2， HO-1 and NQO1 in renal tissue were detected. RESULTS Compared with the control group， the renal tissue lesions of the model group were obvious， including glomerular atrophy， edema degeneration of renal tubular epithelial cells and a large number of inflammatory cell infiltration； the levels of FBG and FINS， HOMA-IR， the levels of IL-6 and TNF-α in serum， and the level of MDA in renal tissue were significantly increased （P＜0.05）， while the levels of SOD and GSH-Px and the protein expressions of Nrf2， HO-1 and NQO1 in renal tissue were significantly decreased （P＜0.05）. Compared with the model group， the renal tissue lesions of rats in paeoniflorin low-dose and high-dose groups were reduced， the above quantitative indexes were significantly improved， and the improvement effect was better in high-dose group （P＜0.05）， while ML385 could significantly reverse the improvement effect of paeoniflorin on the above indexes （P＜0.05）. CONCLUSIONS Paeoniflorin can improve the abnormal glucose metabolism， inflammation and oxidative stress damage of renal tissue in GDM rats， which may be related to the activation of Nrf2/HO-1/NOQ1 signaling pathway.
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Objective To reveal the protective effects of atorvastatin against atherosclerosis independent of cholesterol-lowering effect, we investigated the effects of atorvastation on the expression of protein kinase C (PKC) and C-reactive protein in experimental atherosclerosis of rats.Method Fifty female Sprague-Dawley rats were randomly divided into normal diet group (n = 10, control group), vitamin D3 injection and high cholesterol diet group (n = 40). After 8 weeks, vitamin D3 injection and high cholesterol diet rats were randomized to receive either atorvastatin (5 mg. kg-1. d-1) (n = 20, atorvastatin group) or normal diet (n = 20, model group). Another eight weeks later, all rats were killed and part of their aortas were examined by light and electron microscope and the left were removed for western blot analysis to measure PKC; At the begin and end of experiment, serumcollected for lipid and C-reactive protein determining determination.Results Cholesterol, low-density lipoprotein, triglyceride levels in atorvastatin group were significantly lower than those in model group but higher than control group. The pathologic changes in atorvastatin group were less severe than those in model group, there showed no any pathological changes in control group. The levels of C-reactive protein in model group[(18.64 ± 0.94) mg/L] were higher than those in control group [(9.21 ± 0.21)mg/L] (P<0.05). C-reactive protein levels also differed significantly between control and atorvastatin group (12.52 ± 0.65 mg/L)( P<0.05). PKC levels were significantly higher in model group (7786.12 ± 264.75)and atorvastatin group (4267.57 ± 233.94) than in control group (2468.75 ± 145.53)(all P<0.05). But compared with model group, PKC levels were markedly lower in the atorvastatin group ( P<0.01 ).Conclusions Atorvastatin may be useful not only as a cholesterol-lowering agents but also as anti-arteriosclerotic agent that provide vascular protection by inhibition PKC expression and inflammatory reaction.
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@#Objective To investigate the effect of family support training on quality of life of patients with post-stroke depression(PSD).Methods68 PSD patients were divided into the observation group and control group with 34 cases in each group.All cases of tow groups received regular diagnosis,treatment,and nursing care.And the same time,the family members of the patients of the observation group were given support training.The therapeutic effect of two groups was compared.ResultsThe scores of Hamilton Depression Scale(HAMD)of the patients of the observation group were significantly lower than that of the control group after treatment(P<0.01).ConclusionFamily support training can improve quality of life of stroke patients.