Objective To screen and identify photosynthetic bacteria that could be used to treat bean wastewater. Methods Photosynthetic bacteria (PSB) were screened by enrichment culture from the sludge. The morphological and biochemical characteristics of the bacteria were determined using transmission electron microscope, live cells'scanning and testing of utilization of different carbon sources. In addition, the sequence of 16S rRNA of the PSB was analysed and the homology was compared with the standard strain according to the sequence in the GenBank. Results A strain NS-04 was screened from the sludge of the pond in Nanjing. The bacteria was Gram-negative in shape of ovoid or rod, with size of 0.6-0.9 ?m wide and 1.2-2.0 ?m long. The multiplication manner of the bacteria was binary fission. The photosynthetic membrane was lamellar type, which was under and parallel to intro-cytoplasmic membrane. The clone was brown with major pigments riched in carotenoids and bacteriochlorophylla. The bacteria could grow both under anaerobic condition in the light and aerobic condition in the dark. The bacteria could utilize many kinds of carbon sources and the growth of the cells could be prompted by yeast extract. The analysis of phylogenetic tree of 16S rRNA sequence indicated that the similarity of strain NS-04 and the standard strain of Rhodopseudomonas palustris in GenBank was 97%. Conclusion According to Bergey's Manual of Systematic Bacteriology, strain NS-04 was identified to be Rhodopseudomonas palustris.

Objective:To study the insulin resistance and leptin resistance in women with polycystic ovary syndrome(PCOS).Methods:Body mass index(BMI),serum leptin,fasting blood glucose(FBG),fasting insulin(FINS),serum triglyceride,total cholesterol,high-density lipoprotein,low-density lipoprotein and insulin resistance index(HOMA-IR) were assessed in 30 normal women,30 simple obesity women and 41 PCOS women.Results:①The PCOS patients showed higher levels of BMI,serum leptin,FINS,HOMA-IR and low-density lipoprotein,and lower levels of high-density lipoprotein than that in normal control.Compared to simple obesity women,there only showed higher FINS level and lower BMI in PCOS women.②Serum leptin levels in PCOS patients were concerned with BMI、FINS、HOMA-IR and serum triglyceride levels.③There were no significant difference of the FINS and HOMA-IR between normal women and non obese PCOS women,but the obese PCOS women showed higher levels of FINS and HOMA-IR than that in simple obesity women;the serum leptin levels showed no significant difference between normal women and non-obese PCOS women,simple obesity women and obese PCOS women. Conclusion:PCOS patients may have insulin resistance and leptin resistance;There may have regulative effect between leptin resistance and insulin resistance in PCOS patients;There are direct relationship between insulin resistance and PCOS;The rise of serum leptin level in PCOS women may be the assident manifestation of obesity.

[Objective] This paper sums up professor Qi Xianghua's five psychological disorders of TCM scholar thought and clinical experience in diagnos-ing and treating insomnia. [Methods] By the pulse diagnosis, discern the five kings of psychological disorders, including irritable, anxiety, palpitation due to fright, depressed, and an medical record of professor Qi Xianghua is cited.[Results] The syndrome differentiation should be based on the five kings of psy-chological disorders.[Conclusions] Professor Qi Xianghua's five psychological disorders of TCM on treating insomnia are worth to extend and apply.

Membrane separation technology is a major branch in modern separation technology, which is widely applied in chemical, pharmaceutical and other industries. The purpose of this paper is to introduce principle and the application example of the membrane separation technology in medical devices, to analyse the problems existing in the current application, and to discuss the future development direction.
Equipment and Supplies ; Membranes, Artificial ; Technology

ObjectiveTo evaluate clinical value of evidence-based nursing intervention in treatment of elderly patients with cardiovascular interventional surgery during perioperative period. Methods 150 cases of elderly patients with cardiovascular diseases who underwent interventional surgical treatment were selected.They were randomly divided into the observation group(80 cases)and the control group(70 patients). ResultsThe occurrence and degree of discomfort of bedridden patients in the observation group were milder,and the complications due to use of anticoagulants and pressing dressing were significantly less than the control group.The satisfaction degree and mastering of disease related knowledge in the observation group were significantly better than that of the control group. ConclusionsApplication of evidence-based nursing intervention during perioperative period for elderly patients with cardiovascular interventional surgery can reduce discomfort and complications of patients,as well as improve satisfaction degree and mastering of disease-related knowledge of patients and their families,which is worthy of promotion.

Objective To discuss the diagnosis and treatment of the solid pseudopapillary tumor of the pancreas(SPTP). Methods Six consecutive cases operated in our hospital from Aug. 2008 to Apr. 2010were reviewed. Results Those cases aged ranging from 17 to 31 years, with an average age of 21.8 years.The maximal dimension of tumor ranged from 6.6 to 13.0 cm, averaging 8.2 cm. Those tumors originated from pancreatic head (2), and body or tail (4). Abdominal B-ultrasound or CT scan examination disclosed that pancreas had solid-cystic mass in 4 cases, and the other two had solidmass. All tumors were resected completely and defined pathologically. We performed 5 open operations, including pancreaticoduodenectomy (2 cases), spleen-preserving distal pancreatectomy (2 cases) and distal pancreatectomy plus splenectomy (1 case). One case underwent laparoscopic distal pancreatectomy plus splenectomy. Conclusions The young females are more likely suffered from the SPTP than others, which usually has a clear boundary and large volume. The abdominal B-ultrasound and CT scan are important diagnostic methods. The surgical modality of pancreatectomy is dependent on the tumor's location and extent, furthermore the resectability of SPTP is high. It is possible to perform a spleen-preserving distal pancreatectomy for tumors located in pancreatic body or tail.

Objective To evaluate how well the risk factors associated with stroke recurrence been controlled by community-based medical centers in urban areas of Beijing.Methods A cross-sectional study was performed in 5 community-based medical centers in urban areas of Beijing.A total of 999 patients with the experience of ischemic stroke were evaluated from Dec.2004 to Nov.2005.Results Ninety-six percent of patients suffered from at least one of the most common diseases(risk factors) associated with stroke recurrence,i.e.hypertension(HT),heart disease,diabetes,hyperlipidemia and obesity,and 80% of patients were with more than 1 disease.The proportion of HT was 79.1%(790/999) and the awareness,treatment and control rates of HT patients were 93.3%(737/790),84.3%(666/790) and 40.3%(318/790),respectively.The proportion of heart diseases and obesity among 999 stroke patients were 34.4% and 19.1%%,respectively.31.9%(319/999) of patients had diabetes and 84.0%(268/319) of the patients knew their history of diabetes.Of 319 diabetes patients,68.3%(218/319) were under active treatment and 45.4%(99/218) of them had their fasting blood glucose well controlled.The proportion of hyperlipidemia was 72.9% and the treatment rate for hyperlipidemia was as low as 29.5%(215/728).There were 43.7% and 50.0% of patients quit smoking and alcohol drinking after their acute stroke.72.7%(726/999) of patients were receiving aspirin regularly.Conclusion The proportion of cardiovascular diseases were high among the patients with ischemic stroke who were under the management of community-based medical centers.The community-based medical centers have played an important role in the secondary prevention of stroke.However,the management for ischemic stroke patients with diabetes and hyperlipidemia needs to be improved.

Objective To compare the characteristics of coronary artery lesions and ventricular systolic, diastolic and synchronous function of non-ST-segment elevation (NSTEMI) with those of ST-segment elevation myocardial infarction (STEMI) in Chinese. Methods One hundred and sixty-eight consecutive patients with NSTEMI 116 and STEMI 52 were enrolled into this study. Coronary angiography (CAG) was performed within 72 hours in all patients, while the parameters of left ventricular function were measured by equilibrium radionuclide angiography (ERNA) with ventricular phase analysis (PA) within 1 week after acute myocardial infarction. Results (1) The incidences of patients associated with diabetes and old myocardial infarction in NSTEMI group were higher than those in STEMI group (30.77% vs 10.34%; 34.62% P

Objective To explore the effect and factors of patellofemoral arthroplasty (PFA) for isolated patellofemoral osteoarthritis.Methods Data of 18 patients (3 males,15 females) with isolated patellofemoral osteoarthritis underwent PFA from March 2006 to December 2014 were retrospectively analyzed.There were 3 males and 15 females with a mean age of 54 years (range,46-74 years).It was strict to grasp the surgical indications according to the clinical symptoms,signs and imaging data preoperatively.11 patients were operated with AVON patellofemoral prosthesis (Stryker Inc.) and the other 7 patients were operated with the Gender Solutions patellofemoral prosthesis (Zimmer Inc.).Active and passive functional rehabilitation exercise was encouraged at the early stage after operation.Visual analogue scale (VAS) was 5.33±0.99 (range,4-7) and hospital for special surgery knee score (HSS) was 53.28±5.71 (range,44-63) before operation.Results The mean duration of follow-up was 63.98 months (range,6-104 months).VAS after operation for 1 and 3 months were 1.17±0.79 (range,0-3) and 0.72±0.67 (range,0-2),and the pain was almost relieved after 9 months.HSS after operation for 1,3,9 months were 70.06±6.33 (range,61-80),86.06±5.12 (range,77-95) and 91.39±4.83 (range,82-97).HSS score of the latest follow-up was 92.06±4.05 (range,84-97),which was improved obviously from the preoperative ones.The excellent and good rate was 100％ (excellent 15 cases,good 3 cases).The satisfactory rate was 94.4％ (17/18).Only one case got slightly knee pain when walking up and down the stairs after 2 years,and the pain was relieved after being administered with NSAIDs and rest.No incision infection,rupture,prosthesis supported bone fracture,prosthesis loosening and other complication was occurred during the follow-up period in the other patients.Conclusion The clinical outcomes of PFA are strictly related to surgical indications,implant design and appropriate surgical technique.Therefore,based on the appropriate PFA implants,strict surgical indications,appropriate patients,excellent operation skills and actively functional rehabilitation exercise,PFA could treat the isolated patellofemoral osteoarthritis effectively.

Objective To investigate the status and significance of KIT,PDGFRA and DOG1 gene mutation in gastrointestinal stromal tumors (GIST).Methods 100 GIST patients treated in the First Affiliated Hospital of Guangxi Medical University between May 2002 and May 2013 were analyzed restrospectively.DNA was isolated and amplified for the all exons of KIT,PDGFRA and DOG1.Each PCR product was sequenced to find the position and type of mutation.Results KIT mutations were identified in 75 cases (75％).PDGFRA mutations were found in 16 cases (16％).No DOG1 mutations were found.The overall 5-year survival was 58.8％.Log-rank univariate survival analysis showed that the primary location,tumor size,metastasis,operational mode,type of tumor cells,invasion of the smrounding organs,invasion of the smooth muscle,mitotic counts of the tumor cells,deletions in exon 11 KIT and targeting therapy were significant prognostic factors (all P ＜ 0.05).COX regression model showed that tumor size,metastasis,operational method,invasion of the surrounding organs,mitotic counts of the tumor cehs,deletions in exon 11 KIT and targeting therapy were related to prognosis.Conclusion KIT and PDGFRA mutations are mutually exclusive.The overexpression mechanism of DOG1 is not related to DOG1 gene mutation.The related gene mutations affect the prognosis of GIST.