Objective To understand the cognitive function of the patientwith acquired immune deficiency syndrome (AIDS) in Guangxi are.MethodEighty caseof AIDconfirmed by laboratory in the Nanning Fourth People′Hospital were selected athe patientgroup ;athe same time 88 individualwithouthe dangeroubehaviorwithin 3 monthwhich could cause human im-munodeficiency virus(HIV) infection and with negative anti-HIV antibody detection were selected from the accompanying family memberathe control group .The Chinese translation version of the Montreal cognitive assessmenscale (MoCA) waadopted to conducthe investigation and evaluation on the cognition function in the two group.ResultThe total score span in the patientgroup wa2-29 pointwith the average of (20 .04 ± 6 .13) point,of normal cognitive function and 48 cases(60 .00% ) of cognitive impairmen;the total score span in the control group wa17-29 pointwith the average of (25 .02 ± 2 .98) point,of normal cogni-tive function and 6 cases(6 .82% ) of cognitive impairmen.The scoreof MoCtotal score ,visual and execution ,naming ,delayed recall ,attention ,abstraction and orientation in the patientgroup were lowethan those in the control group ,the differencebetween the two groupwere statistically significan(P＜0 .01) .The personnel distribution and proportion in the variouscore segmenta-tionhad statistical differencebetween the two group(P＜0 .05) .The factorof gende,age and educational level were performed the Logistiregression analysi,the resultshowed thaonly the educational level wathe influencing facto.Conclusion Differendegreeof cognitive impairmenexisin the AIDpatientand the educational level may be factoaffecting the scale score .

Objective Diffusion tensor imaging(DTI)was used to explore the characteristics of white matter (WM)microstruc-ture lesion in patients with temporal lobe epilepsy(TLE)and hippocampal sclerosis(HS).Then we investigated the influence of the age of epilepsy onset and the course on WM changes.Methods DTI data were obtained in 30 TLE patients with HS and 23 age and sex-matched healthy controls.Thirteen patients had left HS (LHS)and seventeen had right HS (RHS).Between-group compari-sons of fractional anisotropy (FA)were carried out by using track-based spatial statistics (TBSS).In addition,FA in regions of in-terest (ROI)where white matter lesions had statistically significant difference was correlated with the age of onset and the course. Results Subjects in the LHS group,as compared to healthy controls,demonstrated these clusters of reduced FA:bilateral corona radiata,the left genu of corpus callosum,the right body and splenium of corpus callosum,the right posterior thalamic radiation,ex-ternal capsule and superior longitudinal fasciculus.White the subjects in the RHS group,the clusters of reduced FA are involving bi-lateral corpus callosum,corona radiata,posterior thalamic radiation,cingulum,superior longitudinal fasciculus,and the right ante-rior limb of internal capsule,the right retrolenticular part of internal capsule and external capsule.In LHS group,the FA of the left genu of corpus callosum was negatively correlated with the course,and the FA of the right anterior corona radiata was positively cor-related with the age of onset.In RHS group,the FA of the bilateral superior corona radiata was positively correlated with the course.Conclusion DTI detects extensive changes in TLE with HS that are not confined to temporal lobe.The age of epilepsy onset in LHS was correlated with the changes of anterior corona radiata,while the course and the WM change were not definitely linked to each other.

Objective To evaluate the results of acromioclavicukr crook plate in treatment of acromioclavicular joint dislocation and distal clavicular fracture and discuss causes for complications and preventive measures.Methods From September 2003 to April 2007,open reduction and acromiocla vicular crook plate fixation was done on 38 patients with acromioclavicular joint dislocation and distal clavicular fracture including 17 with acromioclavicular dislocation and 12 with distal clavicle fractures.Postoperative rehabilitation began early.Results Of all,27 patients were followed up for mean 21 months (3-37 months) and obtained bone healing.The internal fixation was removed at 6-8 months postoperatively and the outcome was evaluated with Karlsson rating system,which showed 22 patients at grade A,four at grade B and one at grade C.There was no dislocation or fracture after the internal fixation was removed ranging.Three patients with limited abduct motion <90° during certain movements got better after plate removal.One patient had acromio clavicular erosion.Conclusions The application of acromioclavicular crook plate provides accurate anatomical reduction and early rehabilitation and enables fast functional recovery.Technically,the implant needs to be used precisely.It is better to get appropriate early exercise and remove plate as early as possible.

Objective To explore labeling efficiency and appropriate conditions of Superpara magnetic iron exide nanopaticles (SPIO) nanoparticles for Bone marrow stromal cells(BMSCs). Methods BMSCs were aquired from skeletally mature dogs via iliac crest aspiration and separated by adherent cell cytopheresis.BMSCs were cultured and incubated with SPIO at different concentrations in vitro. The labeling efficiency of BMSCs with different labeling concentrations SPIO nanoparticles as well as detection of characteristics and signal attenuation rules were evaluated by MRI at 1.5T in vitro. Results BMSCs were efficiently labeled by SPIOin vitro and has no alterations to viability and proliferation profiles at this labeling concentration. BMSCs loaded with SPIO can be detected by MRI at certainly cell quantity in vitro(5 × 104). The quantity of SPIO in cells gradually reduced as cell culture time prolonged, with no statistically significant changes in cell death(P＞ 0.05). Conclusion The results demonstrated the potential application of SPIO as a wonderful cell tracer in vitro.

Objective To compare the effectiveness of nano-hydroxyapatite/collagen (nHAC)and autologous mesenchymal stem cells (AMSCs) for the repair of femoral defect in a rabbit model with femoral defect under the monitoring of the synchrotron radiation hard X-ray. Methods The rabbit models of traumatic bone defect were established and completely randomized into three groups. The femoral defects filled with nothing were used as control group (Group A) , the femoral defects filled with nHAC as Group B and the femoral defects filled with nHAC + AMSCs as Group C. Phase-contrast imaging with synchrotron radiation hard X-ray was applied to detect the degradation and repair process of each group at postoperative weeks 4, 8 and 12, respectively. Results Phase-contrast imaging with synchrotron radiation hard X-ray could display the reparative process. Four weeks after operation, there was collapse in some defect areas in Group A, and the degradation of nHAC and new bone formation were observed in Groups B and C. Eight weeks after operation, fibrous tissues were observed in the defect area in Group A, while osteogenesis and nHAC degradation were more obvious in Groups B and C. Twelve weeks after operation, the defect areas were still unhealed and were substituted by fibrous tissues in Group A, tissue densities of defect areas in Group C were identical with periphery areas, and trabecular bones were formed in Group C. There were statistical differences in the osteogenesis between Group A and Groups B and C,with Group C the best. Conclusion Phase-contrast imaging with synchrotron X-ray can detect the reparative process at a micro-level and plays an important role in the development of tissue engineering.

Phytochemical studies of the the herb Sarcopyramis bodinieri var. delicate (Melastomataceae) have been carried out. The compounds were separated by repeated D101 macroporous adsorption resin column combined with Sephadex LH-20, ODS, and silica gel chromatgrophy. The structures were identified on the basis of extensive spectroscopic data analysis, and by comparison of their spectral data with those reported. Eight flavonoid compounds isolated from the ethyl acetate extract was identified as isorhamnetin (1), quercetin (2), isorhamnetin-3-O-beta-D-glucopyranoside (3), quercetin-3-O-beta-D-glucopyranoside (4), isorhamnetin-3-O-(6"-acetyl)-beta-D-glucopyranoside (5), isorhamnetin-3-O-(2"-acetyl)-beta-D-glucopyranoside (6), quercetin-3-O-(6"-acetyl)-beta-D-glucopyranoside (7), and quercetin- 3-O-(6"-O-E-p-coumaroyl)-beta-D-glucopyranoside (8). All of the compounds were separated from the genus of Sarcopyramis for the first time.
Flavonoids ; analysis ; isolation & purification ; Magnetic Resonance Spectroscopy ; Melastomataceae ; chemistry ; Spectrometry, Mass, Electrospray Ionization

Objective To assess the efficacy and safety of mifepristone combined with oral or vaginal misoprostol for termination of pregnancy between 8 and 16 weeks of gestation. Methods This was a randomized, multi-center, open clinical trial. A total of 625 women at 8-16 weeks of gestation were randomized to receive 200 mg oral mifepristone followed by either oral misoprostol 400 μg every 3 hours or vaginal misoprostol 400μg every 6 hours for a maximum of 4 doses 36-48 hours later. There were 417 women in oral group with 198 at 8-9 weeks and 219 at 10-16 weeks, while 208 women in vaginal group with 99 at 8-9 weeks and 109 at 10-16 weeks. The outcome measures were the success abortion rate, induction to abortion interval, the amount of bleeding, reoccurrence of menstruation and adverse events. Results Abortion rate was significantly higher in vaginal group [98.1% (202/206)] than that in oral group [94.0%(390/415), P=0.023]; concerning termination of pregnancy at 8-9 weeks and 10-16 weeks respectively, there were no significant differences between oral and vaginal groups (P=0.156, P=0.073). The induction to abortion interval was no significant difference in oral and vaginal group in different gestational weeks ( P=0.238, P=0.273). The average induction to abortion interval was (4.1 ± 6.6) hours and (6.0 ± 4.5) hours respectively in terminating 8-9 weeks and 10-16 weeks of gestation. Concerning the amount of bleeding within 2 hours of placenta expulsion, there was significant difference between oral group [(63±46) ml] and vaginal group [(55 ± 45) ml] in terminating 8-9 weeks of gestation (P=0.047), while there was no significant difference between groups in terminating 10-16 weeks of gestation [oral group (76 ± 52) ml versus vaginal group (76 ± 61) ml, P=0.507]. The reoccurrence of menstruation was about 37 days in both oral and vaginal groups. Two cases of incomplete abortion were serious adverse events (SAE) relating to treatment. The common adverse events (AE) of nausea and vomiting were significantly higher in oral group [57.2% (239/417), 36.3% (151/417)] than those in vaginal group [45.4% (94/208), 26.1% (54/208); P=0.005, 0.011]. Conclusion Oral or vaginal misoprostol combined with mifepristone, is effective and safe for termination of pregnancy between 8 and 16 weeks of gestation.

OBJECTIVETo study the structural integrity and continuity of the bilateral uncinate fasciculus (UF) in patients with temporal lobe epilepsy (TLE) using magnetic resonance diffusion tensor imaging (DTI) and evaluate the impact of structural damage of the UF on the executive function of the patients.

METHODSThirty patients with TLE (14 left, 16 right) and 15 healthy control subjects underwent DTI scanning between January, 2007 and July, 2011, and the left and right UF were analyzed for fractional anisotropy (FA) and fiber mean length.

RESULTSIn the control subjects, the average FA was significantly higher in the left than in the right UF (P<0.01). In patients with left TLE, the average FA of the left UF was significantly lower than that of the control subjects (P<0.01), but the FA of the right UF was comparable with that of the control group (P>0.05). In patients with right TLE, the average FA of the left and right UF was significantly lower than that of the control group (P<0.05 and P<0.01). In patients with unilateral TLE, the FA of their bilateral UF was similar. No significant difference was found in the mean length of UF fiber between these 3 groups.

CONCLUSIONSFA is normally higher in the left UF than in the right UF, but inpatients with TLE, the left FA tends to have a lowered UF regardless of which hemisphere is involved, suggesting an early pathology in the microstructure of the left UF. This finding may help in the investigation of possible reasons for executive function damage in TLE patients.

Objective:To explore the application and effect of the online teaching in the clinical nursing practice of obstetrics and gynecology during the coronavirus disease 2019 (COVID-19) epidemic.Methods:A total of 26 undergraduate nursing interns in the obstetrics and gynecology department of Xiangya Hospital of Central South University during the epidemic period were enrolled in this study. The interns accepted online practical teaching, and the teaching effect was analyzed and evaluated through the results of the exit examination and online teaching satisfaction.Results:The theoretical course scores of nursing students are all above 80 points, among which 22 (84.62%) are above 90 points. The operation scores are all above 90 (94.04±2.96) points. The results of the online teaching satisfaction survey show that, 23 (88.46%) nursing students are satisfied with the effect of their online practice.Conclusion:The online teaching mode during COVID-19 epidemic can help nursing students master the theoretical knowledge of obstetrics and gynecology, improve their clinical reasoning ability, strengthen their practical operation skills, and enhance their autonomous learning ability.

Objective:To design and develop an unplanned extubation clinical decision support system, aiming to provide a reference for nurses' clinical decision-making.Methods:Through literature review and expert consultation, the knowledge base of the clinical decision support system for unplanned extubation was constructed, and the system function and interface were designed.Results:The authoritative coefficients of the two rounds of expert consultation were 0.853 and 0.867, respectively, and the Kendall ′s W were 0.458 and 0.492, respectively. The final built knowledge base included catheter evaluation module, unplanned extubation evaluation module, and knowledge reasoning rule module. At present, the knowledge base had sorted out 48 first-level items, 9 second-level items, 72 third-level items in the catheter evaluation module, and 5 first-level items, 12 second-level items, and 73 third-level items in the unplanned extubation evaluation module. Entry, 40 knowledge reasoning rules. Conclusions:The clinical decision-making system for unplanned extubation has changed the implementation of unplanned extubation risk early warning, optimized the management process, and realized the interaction of the hospital system. It can conduct dynamic unplanned extubation risk assessment based on individualization and assist nurses Make clinical decisions and promote the safety of nursing management.