Objective To investigate the effects of nutritional risk on incidence of pressure ulcer in hospitalized elderly patients,and to provide a basis for medical staff to carry out effective preventive measures.Methods Nutritional Risk Screening 2002 (NRS-2002) and nutrition index were applied in 150 elderly patients in the department of neurology for screening and evaluation of nutritional risk.Then the effect of nutritional risk on incidence of pressure ulcer in elderly patients was analyzed.Results 86 cases with nutritional risk and 64 cases without nutritional risk were found.The incidence of pressure ulcer was 16.67％ and 42.67％ respectively.The comparison was made among hemoglobin,serum albumin,pre-albu-min and total lymphocyte count,the difference was statistically significant between the two groups.The incidence of pressure ulcer in elderly patients with nutritional risk was 6.99 times higher than those without nutritional risk.Conclusions To given nutritional risk screening,active and reasonable nutritional support plan to hospitalized elderly patients can reduce the incidence of pressure ulcer.

Objective To observe the clinical effect of Shuguanling(Chinese medicine for dredging the oviduct) on salpingemphraxis sterility and to study its mechanism.Methods The diagnosed patients were randomized into 3 groups with 52 in each.The treatment group was administered Shuguanling p.o.and clyster.The control group A was given Xuefu Zhuyu Oral Liquid(Oral liquid for removing blood stasis in the abdomen),and Kangfu Xiaoyan Pills(Pills for recovery of gynecological inflammation) suppository into recta.The control group B was prescribed Xuefu Zhuyu Oral Liquid and vaginal culdocentesis with the mixture of dexamethasone,chymotrypsin,gentamicin and normal saline.After three months,the effect was evaluated and the pelvic blood flow,blood viscosity,plasma collagenase,fibrinogen and fibrinolytic activity of the treatment group were tested for comparison.Results The tubal patency rate and pregnancy rate of treatment group were significantly higher than those of control groups(P

The numbers of binucleated nerve cells in the rabbit superior cervical ganglionwere investigated.We found that in the neonatal rabbit the binucleated nerve cellsare 31.4% of the total number of nerve cells,and in the 100-day rabbit,thebinucleated nerve cells increase to 41.4%.We infer that the binucleated sympatheticnerve cells are formed either by the fusion of uninucleated sympathetic nerve cellsor by amitosis of the uninucleated cells.

Objective To investigate the effect of case simulation and participatory feedback teaching used for neonatal resuscitation training. Methods One hundred and twenty medical staff was selected as subjects from Obstetric and Pediatric department and were randomized into 4 batches to receive a neonatal resuscitation training program that consisted of theoretical lectures and skill practice. In the control group (first two batches), the teacher demonstrated procedures of neonatal resuscitation, then trainees practiced alone and the teacher corrected their wrong procedure. In the observation group (last two batches), interactive teaching was employed and the training was performed into three steps:practice of skill in teams, watch the procedure of their practice, the feedback. The theoretical exami-nation score, practical examination score, teamwork ability and satisfaction were compared between two groups. SPSS 16.0 was employed for statistical analysis, with α=0.05 as detection level. Results The theoretical examination scores of control group and observation group were (34.27 ±2.26) vs. (33.68±2.32). There was no significant difference in theoretical examination score between the two groups ( P=0 . 166 ) . The practice examination score s of control group and observation group were (36.15±1.46) vs. (34.79±2.43), with significant differences (P=0.000). The teamwork ability of control group and observation group were (35.78 ±1.26) vs. (33.63 ±1.98), with obviously significant differ-ences (P=0.000). The trainees individual study interest, practice intent, knowledge and satisfaction with the training in the observation group were significantly higher than the control group. These results were (8.45±2.75) vs. (6.24±2.28), P=0.001;(8.25±2.05) vs. (6.48±2.75), P=0.003;(7.23±1.37) vs. (5.75 ±1.74), P=0.000; (8.21 ±1.45) vs. (6.34 ±1.69), P=0.000. Conclusion Application of the teaching in neonatal resuscitation training can enhance comprehensive practical skills and team coop-eration ability in med-ical staff, and it improves trainee's satisfaction with the training.

Objective To observe the clinical efficacy of external -rou te microsurgery for retinal detachment (RD). Methods In 36 patie nts (36 eyes) with single rhegmatogenous RD, the silica gel piece and/or bucklin g bands were preplaced, and drainage of subretinal fluid, retinal cryotherapy, e xamination of locating the holes, and intraocular injection of gas were performe d under surgical microscope. The surgical effects were compared with those of ot her simultaneous 37 patients with rhegmatogenous RD who underwent surgery under binocular indirect ophthalmscope. Results The simultaneous int raoperative observation of the fundus details and the sclera through the microsc ope was excellent in all cases. Under the surgical microscope, the reaction of r etinal cryotherapy was clearly visible without any serious surgical sequela. The observation of reaction of retinal cryotherapy and the orientation of the holes were not affected by mild opacity of the refractive media. Retinal reattachment was achieved in 31 eyes after the primary surgery and in 3 eyes after the secon dary surgery, with the final rate of reattachment of 94%. The best-corrected vi sual acuity was

Objective To observe the effect of triptolide on destruction of bone and joint of collageninduced arthritis (CIA) mouse. Methods Female DBA/1 mice were double immunized at the base of the tail with bovine type Ⅱ collagen (C Ⅱ). CIA mice were randomly divided into model group, methotrexate-treated group and 8.18, 16.36, 32.72 ?g/kg triptolide-treated groups. Performance of arthritis were observed regularly. Combined with radiologieal, histological methods were used, and the number of osteoelasts in bone was evaluated and analyzed with TRAP stainning. Results The clinical score and arthritis incidence of CIA mice were significantly decreased, and the number of osteoelasts in bone cavity reduced by treatment of triptolide. X-ray showed that the surface of bone of each articular was eroded, the joint space was narrow, BMD values of lumbar and knee were decreased compared with normal mice. Triptolide could significantly inhibit the damage of bones and joints of CIA mice, and increase the BMD values of lumbar and knee. Conclusion Triptolide can inhibit the damage of bones and joints of CIA mice.

Objective To describe the feelings,career development needs and the coping styles of stress experience of nurses with master's degree within one year after graduation.Methods The semistructured in-depth interview was conducted in 15 nurses with master's degree individually.The data were analyzed by qualitative content analysis method and the themes were abstractod.Results Three themes were extracted,including feelings,their career development needs and coping styles of stress.The nurses with master's degree reported feelings of heavy work pressure; lack of a sense of accomplishment; strong sense of loss.Their career development needs included improvement of professional knowledge and clinical skills; organizational supports; improvement of professional English and received a doctor' s degree.There were three main coping styles of stress:adjusting attitude and self role orientation; competence improvement; adjusting interpersonal relationship.Conclusions Nursing masters suffer from heavy pressure in clinical practice within one year after graduation.They have some occupation development needs.Nursing managers should explore positive and effective methods to relieve the nurses' stress and ratioually use and actively guide nursing masters,and provide direction and space for achieving their occupation value.

The expression cDNA library of A. tabescens was constructed by SMART technique, which useλTriplEx2 as a vector. The titer and the percentage of the constructed library were about 1.0 × 106pfu/mland 98.3% respectively, and the titer and the capacity of the amplified library were about 3.1 × 108pfu/mland 4.2 × 1010. The library was used to provide expressed sequence tags (ESTs). 147 Expressed SequenceTaqs (ESTs) were gained from 176 clones, which were selected randomly and sequenced at the 5'end. Thesequences were submitted to the EMBL database. Blasting the sequences in the GenBank, 43 of them werefound that they have significant similarity with data in GenBank. EST AJ620046 was has significantsimilarity with the arabinosidase of Bacteroides thetaiotaomicron. Using SMART-RACE a full-length cDNA ofAJ620046 was successfully obtained. In order to initially characterize the biochemical properties ofAJ620046, the ORF of AJ620046 named AF was cloned and expressed in Pichia Pastoris yeast.Recombinant pHIL-S1-AF constructed by inserting AF into pHIL-S1 was transformed into Pichia PastorisGS115. Preliminary experiments indicated that AJ620046 was expressed as a 32 kDa protein in recombinantyeast.

Objective To investigate the therapeutic effect of frozen-thawed murine islets which were transplanted into diabetic rats after cultured with hyperbaric oxygenated rotary cell culture system (HORCCS). Methods The purified rat islets were divided into two groups: A. In vitro experiment groups (IvEG) : The rat islets in each subgroup were cultured in HORCCS or common medium for 30 days, then evaluated for the intracellular DNA and insulin contents of islets, and the viability and insulin secreting level of islets. B. Islet transplantation experimental groups (TxEG) : The frozen-thawed islets were cultured in HORCCS or common medium for 7 days, and then transplanted into the recipients. We observed the blood glucose level (BGL) and insulin secreting level in the recipients as well as the uhrastructure change of islets in TxEG. Results The viability and insulin secreting level of islets cultured with HORCCS at 14th day were much higher than those cultured with common medium (P <0.05). The blood glucose level in recipients transplanted with islets cultured with HORCCS recovered to normal value at the 2nd week and lasted for 8 weeks. All these recipients maintained the normal glucose tolerance curve. Electronic microscopy found microchannel outlets on the surface of the frozen-thawed islets cultured with HORCCS. Conclusions Frozen-thawed islets cultured with HORCCS could establish nutrient transmission microchannels, which were not only capable of oxygen and nutrients transmission, but also improving cryopreservation solution to diffuse inside the islet cells evenly and uniformly. So this method not only lessens islet damage from cryopreservation, but also improves the effect of transplantation.

BACKGROUND:As a neurotrophic factor, basic fibroblast growth factors extensively distribute in the central nervoussystem,andplay an important physiological roleby combinationwith their relative receptors.
OBJECTIVE:To investigate the effect of basic fibroblast growth factors on the learning ability and proliferation of nestin-positive hippocampal neural stem cels in rats with vascular dementia.
METHODS:Totaly 30 Sprague-Dawley rats were randomly divided into vascular dementia, sham operation and treatment groups. The vascular dementia and treatment groups were for preparing vascular dementia model, and the treatment group was given subcutaneous injection of basic fibroblast growth factors. Subsequently, at 4 weeks, the learning ability of rats and the number of nestin-positive hippocampal neural stem cels was detected by the Morris water maze test and immunohistochemical staining, respectively.
RESULTS AND CONCLUSION:Compared with thevascular dementia groupthe latency period was significantlyshorterin thesham operation and treatment groups, and the number oftimes crossing the target quadrant was significantlyhigher in thesham operation and treatment groups (P< 0.05). But there was no significant difference between the sham operation and treatment groups(P> 0.05). Under fluorescence microscope, yelow-green fluorescence stained neuronspositive forbasic fibroblast growth factorcould be found in the CA1, CA2 and CA3 of the treatment group. Additionaly, the number of nestin-positive neurons in the CA1 area of the hippocampus was the most inthetreatment group, folowed by the sham operation group, andthe leastin the vascular dementia group. These results suggest that the subcutaneous injection of basic fibroblast growth factors can migrate to the hippocampus,, andimprove the learning ability of rats by inducing proliferation of nestin-positive hippocampal neural stem cels.