Objective To investigate the effect of pre-ischemia physical activity on cognition and ascorbate content in medial prefrontal cortex (mPFC) after cerebral ischemia.Methods Twenty-four Sprague-Dowley rats were enrolled in this study and randomly divided into the following 4 groups:running-ischemia group,running group,ischemia group and shame operation group.Cerebral ischemia was brought about by permanent 2 vessels occlusion (2-VO) method.Treadmill running was used as physical activity training.Ascorbate in mPFC was monitored with in vivo microdialysis coupled with on-line electrochemical flow cell analysis.Passive avoidance was used to test cognitive function at 24 hours after 2-VO cerebral ischemia.Results Neurochemistry study showed that ascorbate level in mPFC increased within 3 hours after 2-VO ischemia and the increase was attenuated in the running-ischemia group.The baseline level of mPFC ascorbate in the four groups has no significant difference.Behavioral data indicated that 3 weeks pre-ischemia running promoted cognitive function recovery after 2-VO ischemia.Conclusion The pre-ischemia physical activity could increase the ascrobate storage in mPFC and enhance the antioxidant ability of this region.Therefore,it is one of the possible neurochemical mechanism underlying pre-ischemia physical activity for the improvement of cognitive function after cerebral ischemia.Thus pre-ischemia physical activity can be of benefit to cognition rehabilitation after stroke.

OBJECTIVEThe aim of the present study was to prepare uniform-sized silybin loaded poly (lactic-co-glycolic acid) (PLGA) microspheres in study of silybin with stainless steel membrane.

METHODSilybin PLGA microspheres were prepared by stainless steel membrane emulsification. The preparation conditions were optimized by single-factor test and orthogonal experiment, and evaluating the mean diameters, the particle size distribution, drug loading, entrapment efficiency and morphology of microsphere.

RESULTPrepared microspheres were round and surface was smooth. The mean diameter was (4.961 +/- 0.56) microm. The span was (1.75 +/- 0.18). The entrapment efficiency was (54.997 +/- 4.05)% and the average drug loading was (23.6 +/- 1.70)%.

CONCLUSIONThe stainless steel membrane emulsification can be used to prepare the silybin PLGA microspheres. The mean diameters of the silybin PLGA microspheres can be controlled in certain level. Stainless steel membrane emulsification has great potentiality exploitation and utilization.

Drug Compounding ; methods ; Emulsions ; chemistry ; Lactic Acid ; chemistry ; Microspheres ; Particle Size ; Polyglycolic Acid ; chemistry ; Silymarin ; chemistry ; Stainless Steel ; chemistry

Objective:To observe the therapeutic effect of electroacupuncture (EA) at Zusanli (ST 36),Guanyuan (CV 4) and Ashi points on adjuvant arthritis rats,and explore the mechanism of EA treatment of rheumatoid arthritis (RA).Methods:Sixty male rats were randomly divided into a normal group,a model group,a methotrexate group and an EA group,with 15 rats in each group.Rats in the normal group and the model group were routinely raised and did not receive treatment;rats in the methotrexate group received methotrexate at a dose of 0.35 mg/(kg·bw),twice a week for 3 weeks;rats in the EA group received acupuncture at Zusanli (ST 36),Guanyuan (CV 4) and Ashi points,and the bilateral Zusanli (ST 36) and Ashi points were connected to EA apparatus,once a day for 3 weeks.The general status,the swelling degree of the toe,the arthritis index (AI) score,the pathological morphology of the ankle joint,and the mRNA expressions of cellular inhibitor of apoptosis protein (c-IAP) 1 and c-IAP2 in joint synovial tissue cells of the rats in each group were observed.Results:The swelling degree of the toe,AI score and mRNA expressions of c-IAP1 and c-IAP2 in the model group were significantly higher than those in the normal group (all P＜0.05).Compared with the model group,the swelling degree of the toe,AI score and mRNA expressions of c-IAP1 and c-IAP2 in the methotrexate group and the EA group improved (P＜0.01 or P＜0.05);the expressions of c-IAP1 mRNA and c-IAP2 mRNA in rat synovial tissues in the EA group were significantly higher than those in the methotrexate group (P＜0.01).Conclusion:EA alleviates joint swelling in rats with adjuvant arthritis.The mechanism may be related to suppressing mRNA expressions of c-IAP1 and c-IAP2,thus to induce apoptosis of synoviocytes.

Objective To investigate the effect of functional training on knee pain,functional movement screen (FMS) score and balance in Chinese elite fencing athletes with patellar tendinopathy.Methods Twenty-four fencing athletes with a diagnosed patellar tendinopathy were randomized into a treatment group (TG) and a control group (CG),each of 12.Both groups were given routine physical therapy,while TG received motor function training in addition for eight weeks.Both groups completed the numerical rating scale (NRS),FMS and balance test before and after the intervention.Results After the intervention,the average PRS and FMS of TG were 2.08± 1.24 and 16.25±0.97 respectively,which significantly outperformed those of TG before the intervention and those of CG after the intervention (P＜0.05).Moreover,TG indicated superior results in parameters of static postural balance including center of pressure,total length of swinging pathway,maximal length of swinging pathway,and area of swinging pathway when compared to TG before the intervention and CG after the intervention(P＜0.05).Conclusion The motor functiontraining is effective in improving functional movement and balance in elite fencing athletes with patellar tendinopathy.

Objective To observe the effect of wheel running and treadmill running on the cognitive functioning of rats after the extraction of a molar.Methods Thirty-two Sprague-Dawley rats were randomly divided into a control group (group C,n =8),a molar extraction group (ML group,n =8),a wheel running pretreatment group (W-ML group,n=8) and a treadmill running pretreatment group (T-ML group,n =8).The rats in the T-ML and W-ML groups practiced wheel running and treadmill running for 1 week,then they and the rats in the ML group received molar extraction surgery.One week later,a passive avoidance test was used to evaluate the cognitive functioning of all of the rats.Results No significant differences were found in the groups' average latency I times,but the average latency II time of the ML group was significantly shorter.There was no significant difference in the average latency II times of the T-ML and W-ML groups.Conclusion Either wheel running or treadmill running can promote learning and memory after molar loss by oral surgery,at least in rats.

Objective:To observe the clinical efficacy of body acupuncture combined with FANG's scalp acupuncture in treating limb dysfunction in the remission stage of stroke and explore the mechanism. Methods:Sixty patients in the remission stage of stroke with limb dysfunction were divided into a control group and a treatment group using the random number table method,with 30 cases in each group.The control group was treated with ordinary acupuncture based on the conventional rehabilitation treatment,and the treatment group was additionally offered FANG's scalp acupuncture.The interventions were conducted once daily with 10 sessions as 1 course.The Fugl-Meyer assessment(FMA)and Barthel index(BI)scores and serum malondialdehyde(MDA)and superoxide dismutase(SOD)levels were compared after 2 treatment courses,and the clinical efficacy was evaluated. Results:After treatment,the FMA and BI scores increased in both groups(P<0.05)and were higher in the treatment group than in the control group(P<0.05).Both groups showed a decreased MDA level and an increased SOD level after the intervention,all showing statistical significance(P<0.05);there were significant differences between the two groups(P<0.05). Conclusion:Based on the conventional rehabilitation treatment,ordinary acupuncture used alone or in combination with FANG's scalp acupuncture can lower the oxidative stress level and improve limb function in treating limb dysfunction in the remission stage of stroke;body acupuncture plus FANG's scalp acupuncture can produce better results.

The clinical application of orbital magnetic resonance (MR) T2-mapping imaging in detecting the disease activity of Graves' ophthalmopathy (GO),and the predictive values of therapy response to intravenous glucocorticoid (ivGC) were investigated.Approved by the local institutional review board (IRB),106 consecutive patients with GO were included in this prospective study.All subjects were divided into two groups according to the patients' clinical activity score (CAS):the CAS positive group (CAS ≥3) or the CAS negative group (CAS ＜3).T2 relaxation time of extraocular muscles (T2RT;ms) and the areas of four extra-ocular muscles (AEOMs;mm2) were measured by 3D T2-mapping MR sequence before and after methylprednisolone treatment,so as the CAS and some ophthalmic examinations including visual acuity,intra-ocular pressure,eyeball movement,diplopia and proptosis.In addition,24 healthy volunteers were recruited as the control group.The mean T2RT and AEOMs in CAS positive group were higher than those in CAS negative group.Both CAS positive and negative groups had significantly higher mean T2RT and AEOMs than the control group (P＜0.01).There was a positive correlation between T2RT and AEOMs values in GO patients,both of them had a positive correlation with CAS and the ophthalmic examinations.It was concluded that to evaluate the activity of GO,CAS was mostly related to inflammation symptoms of ocular surface,more than that,T2RT and AEOMs were also related to abnormal findings of the ophthalmic examinations including high ocular pressure,impaired eyeball movement,diplopia and proptosis.T2RT and AEOMs can reflex the inflammation state of ocular muscles better.CAS combined with 3D T2-mapping MR imaging could improve the sensitivity of detection of active GO so as the prediction and evaluation of the response to methylprednisolone treatment.

Objective To examine the prevalence of depressive symptoms and related factors among HIV-positive men who have sex with men (MSM) in Shanghai.Methods All of the HIV-positive MSM were enrolled to participate in a cross-sectional study with questionnaire-based interview during Nov.,2014 to Nov.,2015.Depression was measured with a 12-item version of the Center for Epidemiological Studies Depression Scale (CES-D),where a score of 9 had been recommended as the cutoff score to indicate possible depressive symptoms.Results A total of 505 participants were recruited with a median age of 30.Among them,the majority were aged 21-44 (77.2％),non-local resident (64.6％),unmarried (73.1 ％) and university graduate or above (62.1 ％).Depressive symptoms were detected from 235 MSM and the prevalence of depression was 46.5 ％.Multiple logistic regression analysis showed that MSM who were non-local residents (OR =1.66,95 ％ CI:1.01-2.49)and had more than one male sex partner in the past year (OR=2.21,95％ CI:1.43-3.41) were more likely to have depressive symptoms compared with local residents and had only one male sex partner or less.On the contrary,compared with the education level of junior middle school or below and having no long-term partners,those who were senior high school educated (OR=0.39,95％ CI:0.21-0.74) and had homosexual behavior with main long-term partners without condoms (OR =0.38,95 ％ CI:0.17-0.85) had lower risk to be depressive.Conelusions The prevalence of depressive symptoms among HIV-infected MSM is high.Residence,education level,homosexual behavior with main long-term partner and number of male sex partner are significantly associated with depressive symptoms,suggesting psychological interventions should be further explored and studied.

Background The molecular biological mechanisms of diabetic retinopathy(DR)is unclear up to now.Researches have proved that endoplasmic reticulum stress(ER Stress)-associated factors are elevated in peripheral blood in patients with diabetic retinopathy.and P58 IPK can inhibit those factors.So the relationship between P58 IPK and DR is worth to investigate. Objective The aim of this study was to detect the dynamic expression of P58 IPK in the retina of diabetic rats. Methods The diabetic animal models were established in 18 clean male SD rats by intraperitoneal injection of stilptozotiein(STZ)at a dose of 60 mg/kg.The rats were sacrificed in 1,3,6 months after injection.The expression change of P58 IPK mRNA in the rats retina was detected by quantitative real-time RT-PCR.Other 6 matched normal rats were used as control groups.This experiment followed the Regulations for the Administration of Affair Concerning experimental Animals by State Science and Technology Commission. Results The rats showed more drinking,more food and more urine after STZ injection with the blood glucose level≥ 16.5 mmol/L.The success rate of diabetic models was 100%.The A value of P58 IPK mRNA/β-actin in rat retina was 0.800±0.005 and 0.975±0.008 after injection of STZ.and that of control rats was 0.725±0.006,showing statistically significant difference between them(t=22.589,t=62.784,P＜0.05).In 6 months after injection of STZ,the expression of P58 IPK mRNA in experimental diabetic rat retina was evidently lower than the eontrol rats(0.671±0.004 versus 0.725±0.006,t=-17.984,P＜0.05).Conclusion P58 IPK has a close relation to the pathogenesis of DR,and it plays a retarding role for DR.

Objective To investigate and analyze the status of nursing undergraduate students ’ professional attitude and subjective well-being and related factors, so as to provide a scientific basis for college nursing students based on the importance of professional training to enhance their value orientation of subjective well-being.Methods The general well-being scale and a self-designed questionnaire were used among 385 undergraduate nursing students, who were recruited from Grade 2011, 2012 and 2013 in our school. Results The score of subject well-being of the 385 undergraduate nursing students was (75.25 ±16.89), which was significantly higher than (72.4 ±16.7) of the norm (t =7.47,P <0.01).The undergraduate nursing students had a high professional recognition and a strong sense of subjective well-being.Stepwise regression analysis showed that their understanding to the nature of the nursing profession, prospects for nursing professional, and the awareness of the importance of undergraduate nursing education were main influence factors of subjective well-being.Conclusions The professional attitude of nursing undergraduate students can be served as a good predictor of subjective well-being.Schools should continue to improve, enrich nursing teaching forms to guide undergraduate nursing students to correctly understand the nature of nursing and professional and to help nursing students to enhance their professional satisfaction and their subjective well-being.