Objective To explore the proliferation-promoting effect of bovine mammary gland epithelial cells (BMECs) co-cultured with umbilical cord mesenchymal stem cells (UC-MSCs) in serum-free culture mediuum.Methods Bovine UC-MSCs and BMECs were selected for co-culturing in direct or indirect contact.In the direct contact culture groups, UC-MSCs and BMECs were co-cultured at concentration ratios of 2∶1, 1∶1, 1∶2, 1∶3, 1∶4, 1∶5, and 1:10, respectively.In the indirect contact culture group, the supernatant of UC-MSCs was used as the conditioned medium to re-suspend BMECs.In the control groups, UC-MSCs and BMECs were cultured alone.The cell growth status in each group was observed at 0, 4, 8, 12, 24, 36, 48, 60, 72 h after culture, and cell proliferation was detected by cell counting kit-8 (CCK-8) assay.Results At 48 h, the optical density of the conditioned medium-BMECs group was significantly higher compared with the control groups (P<0.05).Meanwhile, the optical density in the direct contact group at a concentration ratio of 1∶2 reached the peak, which was extremely significantly higher compared with the control groups (P<0.01) and significantly higher compared with the other direct contact culture groups and the conditioned medium-BMECs group (P<0.05).Conclusions Co-culture of UC-MSCs and BMECs in serum-free culture medium is capable to promote the proliferation of BMECs, and the co-culture by cell-to-cell contact has a better effect.The optimal concentration ratio of UC-MSCs to BMECs is 1∶2, and the optimal culture time is 48 h.

Objective To evaluate the efficacy of tibial bone-skin flap grafts in the management of se- vere traumatic osteomyelitis complicated with bone and skin defect in leg to avoid amputation.Methods From March 1998 to Aug.2004,12 cases of the traumatic osteomyelitis complicated with bone and skin defect in leg were treated with vascularized tibial bone-skin flap graft.The longest flap was 17cm,widethest 10cm, The longest bone flap was 12cm.They were followed up for 0.6 to 5 years.Results All the tibial bone-skin flaps survived completely,2 cases of osteomyelitis recurred.The followed-up,from 0.5 to five years,showed good bone union in all cases,averageing 15 weeks.The infection was under control.The leg function and con- tour were satisfactory.Conclusion The tibial bone-skin flap has the advantages of having distinguished sign of anatomy,highly vascularized,easy to obtain,simply and flexible procedure,improving circulation,short- ens hospitalization and suitable for treatment of traumatic osteomyelitis complicated with bone and skin defect in leg.

Objective To investigate the role of acid and bile reflux in children with gastroesophageal reflux disease (GERD) and to evaluate the significance of detecting acid and bile reflux in diagnosing GERD in children.Methods Using ambulatory 24 h pH mo-(nitoring) and bilirubin monitoring technique, we simultaneously assessed the changes of intraesophageal pH and bile reflux in 23 subjects (including 11 healthy controls and 12 patients with GERD).Results The time of esophageal acid exposure (pH

Objective To investigate the pathogen distribution and drug resistance of gram-negative bacteria causing lower respiratory tract infections in patients with acute exacerbation of chronic obstructive pulmonary disease ( AECOPD) .Methods A total of 742 sputum samples were collected from AECOPD patients with lower respiratory tract infections in Taizhou Hospital of Zhejiang Province during January 2013 and December 2014.Vitek 2 Compact system combined with disk diffusion was used for strains identification and drug susceptibility test.Modified Hodge test and ethylenediamine tetraacetic acid (EDTA) synergic test were used to screen carbapenem-resistant strains.Statistical analysis was performed using WHONET 5.6 and SPSS 20.0 software.Results A total of 593 strains of gram-negative bacteria were isolated , in which 367 strains were nonfermentative bacteria (61.89%), 220 strains were enterobacteriaceae (37.10%), and the rest 6 strains ( 1.01%) were other gram-negative bacteria.Acinetobacter baumannii ( 186 strains ), Pseudomonas aeruginosa (99 strains), Stenotrophomonas maltophilia (33 strains) and Burkholderia cepacia (22 strains ) were top 4 nonfermentative bacteria , and they all showed high resistance to ampicillin , ampicillin/sulbactam, cefazolin, ceftriaxone, cefotetan and nitrofurantoin with resistant rates of 67.20%-100.00%. Drug resistance rates to other β-lactams, fluoroquinolones, aminoglycoside, compound sulfamethoxazole and minocycline were significantly higher in carbapenem-resistant Acinetobacter baumannii and Pseudomonas aeruginosa strains than those in non-carbapenem-resistant strains , and the differences were statistically significant (P <0.05 or <0.01).Stenotrophomonas maltophilia and Burkholderia cepacia strains were only sensitive to levofloxacin , compound sulfamethoxazole and minocycline . Klebsiella pneumonia (89 strains), Escherichia coli (80 strains) and Enterobacter cloacae (25 strains) were top 3 enterobacteriaceae , which were almost completely resistant to ampicillin , but were sensitive to piperacillin/tazobactam , cefoperazone/sulbactam , amikacin and carbapenems ( with resistant rates <15%) .More than 50%strains of extended spectrum β-lactamases ( ESBLs )-producing Klebsiella pneumonia and Escherichia coli were moderately or highly resistant to ampicillin/sulbactam , most cephalosporins ( except cefotetan and cefoperazone/sulbactam ), gentamycin, tobramycin, fluoroquinolones, aztreonam, compound sulfamethoxazole and minocycline , and the resistant rates were higher than those in non-ESBLs-producing strains (P <0.05 or <0.01).Conclusions Nonfermentative bacteria and enterobacteriaceae are the most prevalent gram-negative bacterial pathogens in lower respiratory tract infections in patients with AECOPD . Carbapenem-resistant Acinetobacter baumannii and Pseudomonas aeruginosa strains, as well as ESBLs-producing Klebsiella pneumonia and Escherichia coli strains are highly resistant to most antibacterial agents .

Objective To investigate the anatomical relation between Zuckerkandl's tubercle and recurrent laryngeal nerve and the superior parathyroid glands anatomy in endoscopic thyroidectomy.Methods From Jul.2012 to Jun.2014 implementation of the 120 cases of endoscopic thyroid surgery (at least one side of the line lobectomy) intraoperative Zuckerkandl tubercle of the presence, all the patients from Subei People's Hospital and location of the relationship between anatomy recurrent laryngeal nerve and superior parathyroid glands.Zuckerkandl tubercle identified by intraoperative recunent laryngeal nerve to expose and superior parathyroid glands.Results Zuckerkandl tubercle appear in the vast majority of cases: on the left is 86％ (51/59), 88％ in the right side (65/74), most of superior parathyroid glands were located on the top of Zuckerkandl tubercle.Looking for recurrent laryngeal nerve by Zuckerkandl tubercle method is more direct, can reduce surgical bleeding and shmten the operation time.Conclusion Recurrent laryngeal nerve and superior parathyroid glands and have close anatomical relationship with Zuckerkandl tubercle.In endoscopic thyroidectomy by intraoperative discern Zuckerkandl tubercle can better avoid injury recurrent laryngeal nerve and superior parathyroid glands.

Child, Preschool ; Female ; Humans ; Sarcoma ; diagnosis ; surgery ; Stomach Neoplasms ; diagnosis ; surgery ; Stromal Cells ; pathology

To investigate the metabolic rate and metabolites of 9-dehydro-17-dehydro-andrographolide, which is the main active ingredient in Xiyanping injection, by using the in vitro rat liver microsome incubation system. 9-dehydro-17-dehydro-andrographolide was incubated together with liver microsome mixed with NADPH. Its metabolic rate was studied by determining its residual concentrations with the UHPLC-MS/MS method; Its metabolites were identified by the UPLC-TOF-MS(E) method. The results showed that 9-dehydro-17-dehydro-andrographolide was metabolized faster than rat liver microsomes mixed with coenzymes, with t½ and CL of (19.7 ± 0.5) min and (35.1 ± 0.8) mL x min(-1) x g(-1) (protein), respectively. Based on the high resolution mass spectrum data and information from literatures, altogether nine metabolites of 9-dehydro-17-dehydro-andrographolide were identified in the incubation system, particularly hydroxylated and dehydrogenized products. The results of identification would provide a basis for screening out more active andrographolide derivatives.
Animals ; Chromatography, High Pressure Liquid ; Diterpenes ; chemistry ; metabolism ; Drugs, Chinese Herbal ; chemistry ; metabolism ; Microsomes, Liver ; chemistry ; metabolism ; Molecular Structure ; Rats ; Tandem Mass Spectrometry

Objective:To describe the current status quo of humanistic care quality of psychiatric nurses in China, analyze its influence factors, and explore the relationship between humanistic care quality, professional values and sense of organizational support of psychiatric nurses.Methods:Using multi-stage stratified cluster sampling method selected, totally 5 003 nurses from 43 the psychiatric hospitals or psychiatric department in general hispitals were investigated with general information questionnaire, Nursing Caring Characters Assessment Tool, Perceived Organizational Support Scale (POS) and Nurses Professional Values Scale-Revised (NPVS-R) from May to August, 2018.Results:In 5 003 psychiatric nurses, the total score of Nursing Caring Characters Assessment Tool was 4.21 ± 0.63. The humanistic care knowledge dimension and humanistic care ability dimension were better (4.27±0.65, 4.21 ± 0.63), while the humanistic care concept dimension and humanistic care perception dimension were weaker(4.16±0.66, 4.17±0.66). The results of structural equation model showed that personal background, care environment, sense of organizational support and professional values had influence on the humanistic care quality of psychiatric nurses, and the standardized total effect values were 0.047, 0.106, 0.508 and 0.512 respectively.Conclusions:The overall level of humanistic care quality of psychiatric nurses is good, but there is still room for further improvement, especially the concept and perception of humanistic care. in order to meet the growing needs of the public for nursing services and the needs of nursing professional development and discipline development, caring for the environment, personal background, sence of organizational support and professional values are important factors affecting the quality of humanistic care of psychiatric nurses.

OBJECTIVETo investigate the effect of ganoderma lucidum polysaccharides on blood lipid and lipoperoxidation from the experimental hyperlipidemic rats.

METHOD50 rats were randomly divided into normal group, hyperlipidemia control group, experimental group 1, 2 and 3 in which the rats were treated with ganoderma lucidum polysaccharides at dosages of 200 mg x kg(-1) and 400 mg x kg(-1) and 800 mg x kg(-1) respectively. Apart from the rats in control group, all the rats in other groups were fed with high fat forage for 30 days. The blood was collected from the tails of rats for measuring the serum TC, TG, HDL-C, LDL-C, GSH-Px, SOD and LPO.

RESULTGanoderma lucidum polysaccharides could significantly decrease the serum contents of TC, TG, LDL-c in the experimental hyperlipidemic rats (P < 0.01), and markedly increase the level of serum HDL-C (P < 0.05), Mean Level of blood LPO in the experimental groups treated by ganoderma lacidum polysaccharides at different dosages were much lower than that in hyper lipidema group, and the GSH-Px and SOD activities of blood in the group of ganoderma were much higher than those in hyperlipidema group.

CONCLUSIONGanoderma can regulate lipid metabolism, enhance the antioxidation and reduce the lipid peroxidation in the rats with hyperlipidemia.

Animals ; Cholesterol, HDL ; blood ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Female ; Hyperlipidemias ; drug therapy ; Hypolipidemic Agents ; pharmacology ; therapeutic use ; Lipid Peroxidation ; drug effects ; Lipids ; blood ; Male ; Phytotherapy ; Polysaccharides ; isolation & purification ; pharmacology ; therapeutic use ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Reishi ; chemistry

Objective To explore the clinical outcome of improved technique of Gamma nail in the treatment of intertrochanteric hip fracture of the elderly patients. Methods From March 2002 to October 2006.39 patients with intertrochanteric hip fracture were operated by improved technique of Gam-ma nail.There were 18 males and 21 females at average age of75.7 years(67_98 years).There were 6 patients with type A1 fracture,24 with type A2 fracture and 9 with type A3 fracture according to AO/ASIF classification.Of all.36 patients(92.3%)had osteoporosis.The operation improvements included the following points:(1)The patients were placed at the lateral decubitus position with the fractured limb on the uppermost,with flexion of knee and hip of 60°.The normal hip and knee were flexed as possible.(2)One-off indirect traction reduction was used after general anesthesia. no requirement of continuous mechanical traction.(3)C-arm image intensifier was employed to obtain normal and lateral projections.Results Of all,35 patients were followed up for a mean period of3 years and 2 months, ranging from 6 months to 5 years and 2 months.Operation data showed incision length of(4.3±1.2)cm,mean opera-tion time of(46±10)minutes,intraoperative bleeding volume of(65±26)ml and intraoperative X-ray exposure of(3.0±2.1)times.Postoperative recovery data showed survival in one-year follow up,with ambulation time of(10.5±3.6)days and fracture union time of(10.9±2.1)weeks.Mean Parker's score wag(6.9±3.2)points 6 months after operation. Conclusions Improved technique of Gamma nail can shorten operation duration,reduce operative trauma and bleeding,reduce X-ray exposure and im-prove success rate of surgery.as facilitates early pest-operative recovery and reduces the perioperative mortality rate of the elderly.