Abstract: Objective To understand the distribution and drug resistance of pathogenic bacteria of bloodstream infection in Fujian Province, and to provide reference for clinical rational drug use. Methods Bacteria identification and antimicrobial susceptibility test were carried out on the isolated strains of blood culture samples in 31 medical institutions in Fujian Province according to the unified plan. The data were statistically analyzed by WHONET 5.6 software according to the Clinical and Laboratory Standards Institute (CLSI) drug sensitivity executive standard in 2021. Results After removing the duplicate strains, 10 356 strains of bacteria were collected, including 3 668 strains of Gram-positive bacteria (35.4%) and 6 688 strains of Gram-negative bacteria (64.6%). The top 5 bacteria are Escherichia coli, Klebsiella pneumoniae, coagulase negative Staphylococcus, Staphylococcus aureus and Pseudomonas aeruginosa. In this study, the detection rate of methicillin-resistant Staphylococcus aureus (MRSA) was 24.5%, and the detection rate of methicillin-resistant coagulase-negative Staphylococcus aureus (MRCNS) was 76.8%. Vancomycin, teicoplanin and linezolid resistant staphylococci were not found. The detection rate of penicillin resistant Streptococcus pneumoniae was 3.2%. Vancomycin resistant Enterococcus faecalis and Enterococcus faecium were 0.8% and 1.1% respectively. The resistance rate of Escherichia coli to carbapenems was 0.8%, and the resistance rate to levofloxacin was 41.9%; the resistance rate of Klebsiella pneumoniae to carbapenems was 15.0%. The resistance rate of Acinetobacter baumannii to carbapenems was 45.1%; the detection rate of Pseudomonas aeruginosa was only 14.2%, and it maintained a high sensitivity to most drugs. Conclusions Most bloodstream infections in Fujian Province are caused by Escherichia coli, Klebsiella pneumoniae and Staphylococcus. The drug resistance of some strains is not optimistic, so we should continue to strengthen the clinical application management of antibiotics and use them correctly and reasonably. Keywords: Bloodstream infection; bacteria; antibiotics; drug resistance monitoring

Adult human bone marrow-derived mesenchymal stem cells (MSCs) were cultured on microcarriers in spinner flasks and were compared with those in conventional culture in 12-well plates. For the production of adherently growing MSCs, macroporous CultiSpher G gelatin microcarriers were used in concentration of 1 g/L. The cells were seeded in a density of 5 x 10(4) cells/ml in both spinner culture and conventional stationary culture. The result showed that after 7 days of cultivation a maximum viable cell concentration of 5.15 x 10(5) cells/ml was obtained in spinner culture. Whereas the cell density increased to a maximum of 1.675 x 10(5) cells/ml on day 5 in conventional stationary culture. Lactate was produced up to 12.06 mmol/L in spinner culture and up to 13.10 mmol/L in stationary culture, and glucose was consumed up to 7.38 mmol/L and 5.37 mmol/L respectively. The average lactate yield on glucose consumption in spinner culture was only 1.63, lower than that in stationary culture 2.44. This indicated that the energy metabolism in spinner culture was significantly more efficient than that in conventional culture. After spinner culture for 12 days, the MSCs maintain the characteristics of stem cells. It is concluded that the microcarrier culture system is a suitable way to expand the seeding cells for tissue engineering.
Adult ; Antigens, CD ; analysis ; Bone Marrow Cells ; cytology ; metabolism ; ultrastructure ; Cell Count ; Cell Culture Techniques ; instrumentation ; methods ; Cell Division ; Cell Survival ; Flow Cytometry ; Glucose ; metabolism ; HLA-DR Antigens ; analysis ; Humans ; Lactates ; metabolism ; Mesoderm ; cytology ; metabolism ; ultrastructure ; Microscopy, Electron ; Microscopy, Electron, Scanning ; Stem Cells ; cytology ; metabolism ; ultrastructure ; Time Factors

OBJECTIVETo study the protective effect of Chinese herbs for supplementing Shen to eliminate stone on renal injury induced by extracorporeal shockwave lithotripsy (ESWL) in patients with renal calculus.

METHODSSixty patients with diagnosis of renal calculus confirmed by X-ray film or CT combined with abdominal B ultrasonography but showing no obvious symptoms, were randomized into the treated group and the control group. They all were scheduled to receive ESWL treatment. To the patients in the treated group, prescribed Chinese herbs was orally administered in the three days before and after ESWL, patients in the control group ate and drank as usual. Changes of blood levels of nitric oxide (NO), endothelin-1 (ET-1), superoxide dismutase (SOD), malondialdehyde (MDA), tumor necrosis factor alpha (TNF-alpha), urinary levels of N-acetyl-D-glucosaminidase (NAG), gamma-glutamyltransferase (gamma-GT) and beta 2-microglobulin (beta 2-MG) before and after ESWL were observed.

RESULTSBlood levels of NO, ET-1, MDA and TNF-alpha significantly increased after ESWL in the control group, higher than the levels in the treated group (P < 0.05); and level of SOD decreased gradually in the control group reaching the valley 72 h after ESWL (P < 0.05), while in the treated group it was unchanged and remained at the level higher than that in the control group (P < 0.05). As for the urinary levels of NAG, gamma-GT and beta2-MG, after ESWL, they were all higher in the control group than those in the treated group, showing statistical significance (P <0. 05).

CONCLUSIONESWL could induce renal damage in patients with renal calculus and the Chinese herbs for supplementing Shen to eliminate stone can reduce the renal tubular damage by way of anti-oxidation and regulating the renal hemorrheologic disorder and the release of inflammatory mediators.

Adolescent ; Adult ; Aged ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Kidney ; drug effects ; injuries ; Kidney Calculi ; blood ; drug therapy ; therapy ; urine ; Lithotripsy ; adverse effects ; Male ; Middle Aged ; Tumor Necrosis Factor-alpha ; blood ; Young Adult ; beta 2-Microglobulin ; urine ; gamma-Glutamyltransferase ; urine

Objective To evaluate the acute and delayed killing effect of high intensity focused ultrasound (HIFU) on Echinococcus granulosus(E. granulosus)protoscolices in vitro.Methods E. granulosus protoscolices were treated with different dosage of effective power(0,25,50,100,200,250 W)and time(5,10,20,30,40,50,60 s)of HIFU in vitro to obtain the dosage-effect curves.Then the survival pmtoscolices were incubated,and the mortality of each group was counted daily.The protoscolicidal effects were investigated by trypan blue exclusion assay.Results Compared with the untreated group,the Vitality of E.granulosus protoscolices significantly decreased immediately after treated by HIFU of different dosage(F=5201.59 vs 1865.65,P＜0.05),there were the interaction both different dosage and time(F=214.50,P＜0.05).The protoscolices were broken into pieces by HIFU of 250 W×40 s,whereas the growth of the surviving protoscolices after exposed to HIFU was obvious suppressed.Both the acute killing effect and the delayed inhibitory effect showed a dosage-dependant manner.The inhibitory effect increased along with the increased dosage of HIFU(P＜0.05).The inhibitory effect in 50 W×10 s group was stronger than 25 W×20 s group(P＜0.05).The mortality was increased in parallel with the increase of HIFU dosage.Conclusions HIFU show an effective immediately killing effect,as well as a growth-inhibiting effect on the E.granulosus protoscolices in vitro.

OBJECTIVETo transfect antisense vector of human cyclooxygenase-2 (COX-2) gene into COX-2 highly expressing cholangiocarcinoma cell line QBC939 and explore its biological activities and role in carcinogenesis.

METHODSQBC939 cells were transfected with antisense vector of human COX-2 gene using LipoVec transfecting technique. Transfected cells were selected with G418; COX-2 mRNA was examined using reverse transcription polymerase chain reaction (RT-PCR) and COX-2 protein expression was detected by immunocytochemistry using isozyme selective antibodies. The proliferative status of transfected cells was measured by using methabenzthiazuron (MTT) assay; Cell cycle and apoptosis were analyzed by using flow cytometry.

RESULTSRT-PCR showed a lower COX-2 mRNA level in antisense vector transfected cells and immunocytochemistry showed a weaker COX-2 protein expression in antisense vector transfected cells. The antisense vector transfected cells proliferative index decreased significantly (P < 0.01), the percentage of S phase decreased remarkably (P < 0.05) in antisense vector transfected cells (9.27% +/- 1.91%) compared with that in QBC939 cells without transfection(16.35% +/- 2.87%), and the percentage of G0/G1 phase increased remarkably (P < 0.05) in antisense vector transfected cells (75.16% +/- 4.13%) compared with that in QBC939 cells without transfection (57.31% +/- 10.16%). Transfection with antisense vector of human COX-2 gene had no significant influence on the apoptosis in QBC939 cells (P > 0.05).

CONCLUSIONTransfection with antisense vector of human COX-2 gene could inhibit the proliferation of human cholangiocarcinoma QBC939 cells.

Apoptosis ; Bile Duct Neoplasms ; metabolism ; pathology ; Bile Ducts, Intrahepatic ; Cell Cycle ; Cell Division ; Cell Line, Tumor ; Cholangiocarcinoma ; metabolism ; pathology ; Cyclooxygenase 2 ; DNA, Antisense ; genetics ; Humans ; Isoenzymes ; biosynthesis ; genetics ; physiology ; Membrane Proteins ; Prostaglandin-Endoperoxide Synthases ; biosynthesis ; genetics ; physiology ; RNA, Messenger ; genetics ; Transfection

BACKGROUNDRecent studies have revealed the important role of free radicals in renal damage induced by high-energy shock waves (HESW). This study aimed at investigating the effects of Astragalus membranaceus, a traditional Chinese medicinal herb, on free radical-mediated HESW-induced damage to renal tubules in a live rabbit model.

METHODSForty-five healthy male New Zealand white rabbits were randomly divided into three groups: control group (n = 15), sham group (n = 15), and herb-treated group (n = 15). Three days prior to HESW application, the controls received verapamil (0.4 mg/kg), the shams received physiological saline (20 ml), and the herb-treated animals received Astragalus membranaceus (2.4 g/kg) intravenously. HESW (1500 shocks, 18 kV) was applied to the right kidneys of all anesthetized rabbits. We measured superoxide dismutase (SOD) and malondialdehyde (MDA) levels before and after shock treatment in blood and kidney homogenates. Histopathological changes were also observed.

RESULTSMDA levels increased and SOD activity decreased significantly in the sham group (P < 0.05 for both) after shock treatment. MDA levels showed a much less increase in the controls (P < 0.05) and did not increase to statistically significant levels in the group receiving Astragalus membranaceus (P > 0.05). SOD values were significantly higher in the controls than in the shams (P < 0.05). By contrast, SOD levels recovered rapidly in the rabbits receiving Astragalus membranaceus, reaching a nadir within 24 hours, and returning to baseline more quickly than in control and sham rabbits (P < 0.05). Histopathological examinations showed that renal tubular damage in the controls was less severe than in the shams, while damage in the Astragalus membranaceus group was even more mild, with rapid recovery in comparison with the controls.

CONCLUSIONThis study provides preliminary evidence indicating that Astragalus membranaceus has strong protective effects on free radical-mediated renal tubular damage induced by HESW and that these effects are superior to the effects of verapamil.

Animals ; Astragalus membranaceus ; Free Radicals ; toxicity ; High-Energy Shock Waves ; adverse effects ; Kidney Tubules ; drug effects ; pathology ; Male ; Malondialdehyde ; blood ; Phytotherapy ; Rabbits ; Superoxide Dismutase ; blood ; Verapamil ; pharmacology

OBJECTIVETo investigate the efficacy and safety of the Fuzheng Huayu Tablet FZHYT), which is used to reinforce qi and resolve stasis in patients with posthepatitic cirrhosis (PHC).

METHODSA multicenter, randomized, controlled clinical trial was conducted in 180 patients with PHC. The patients were randomly assigned using random numbers to a treatment group treated with FZHYT and a placebo group; the treatment course was 6 months for both groups. Overall response, adverse events (AEs), and the 2-year survival rate were assessed after treatment. Evaluations were made on changes in liver function, liver fibrosis, coagulation, hemodynamics, degrees of esophagogastric varices, ascites, quality of life (QOL), and scores of main symptoms.

RESULTSThe overall response was significantly higher in the treatment group than the placebo group (86.7% vs. 62.2%, P<0.01). Patients in both groups had significant improvements in liver function [total bilirubin (TBIL), albumin (ALB)], liver fibrosis [hyaluronic acid (HA), type IV collagen (CIV)], coagulation [prothrombin time (PT), activated partial thromboplastin time (APTT), fibrinogen (FIB), and thrombin time (TT)], hemodynamics portal venous flow (PVF), and splenic vein flow (SVF) after treatment. Between-group comparisons showed that compared with the placebo group patients in the treatment group achieved significantly greater improvements in TBIL, ALB, HA, C IV, PT, APTT, PVF, SVF, time to ascites resolution, 2-year survival, QOL, and symptom scores (P<0.05 or P<0.01). There were no significant AEs during the treatment.

CONCLUSIONFZHYT is effective and safe for the treatment of hepatic cirrhosis as it is associated with improved liver function, liver fibrosis, coagulation, portal hypertension state, QOL, 2-year survival rate, and fewer AEs.

Adult ; Aged ; Ascites ; complications ; pathology ; Blood Coagulation ; drug effects ; Drugs, Chinese Herbal ; adverse effects ; pharmacology ; therapeutic use ; Esophageal and Gastric Varices ; drug therapy ; pathology ; Female ; Hemodynamics ; drug effects ; Humans ; Liver Cirrhosis ; complications ; drug therapy ; physiopathology ; Liver Function Tests ; Male ; Middle Aged ; Qi ; Quality of Life ; Survival Analysis ; Tablets ; Treatment Outcome ; Young Adult

OBJECTIVETo summarize clinical application result of the thoracodorsal artery perforator pedicled flap for repair of soft tissue defects on the ipsilateral upper limb.

METHODSFrom September 2003 to May 2007, 8 patients (6 males and 2 females) with soft tissue defects on the ipsilateral upper limb underwent reconstruction with the thoracodorsal artery perforator pedicled flap. The age of patients was from 16- to 45-years-old with an average of 32 years. Of them, the recipient sites of 5 cases were located on the arm region, 3 cases on the forearm.

RESULTSThe minor superficial infection of 1 case occurred on the recipient site after operation and the wound gradually healed by daily change dressings. All the flaps had survived completely and the postoperative course was uneventful with satisfactory clinical results. Follow-up period ranged for 9-38 months after operation (mean, 19 months). There was no remarkable donor site morbidity. All cases had good appearance on recipient site.

CONCLUSIONThe thoracodorsal artery perforator pedicled flap is thin and suitable for repair of soft tissue defect on the ipsilateral upper limb.

Adolescent ; Adult ; Female ; Humans ; Male ; Middle Aged ; Reconstructive Surgical Procedures ; Soft Tissue Injuries ; physiopathology ; surgery ; Surgical Flaps ; blood supply ; Thoracic Arteries ; surgery ; Upper Extremity ; blood supply ; surgery ; Young Adult

Adolescent ; Adult ; Aged ; Ankle Injuries ; surgery ; Female ; Foot Injuries ; surgery ; Humans ; Male ; Middle Aged ; Soft Tissue Injuries ; surgery ; Surgical Flaps

OBJECTIVETo explore the effect of occupational stress on hypertension.

METHODS498 workers whose accumulative length of service was more than two years were investigated with questionnaire by method of cluster sampling from a thermal power plant in Henan province in China; 446 respondents returned qualified questionnaire including 281 male and 165 female Han People. After the patients with secondary hypertension, diabetes patients, and patients with liver or kidney disease were excluded, 84 workers (58 males and 26 females) were diagnosed as hypertension. The occupational stressors, personalities, buffering factors and occupational strain were measured by using the Job Demand-control Model, the Effort-reward Imbalance Model questionnaires and Occupational Stress Measurement Scale. Main risk factors for the development of hypertension such as heredity, body mass index, high salt diet, alcohol use, smoking habit and lack of physical activity were investigated. 498 whole blood samples were collected from workers in field epidemiologic survey. All of the samples were detected TG, CHO and FPG by common biochemistry methods. Multivariate logistic regression analysis were used to determine the relationship between occupational stressors and prevalence rate of hypertension. The difference of morbidity of hypertension between different stress level subjects was analyzed by chi2 test.

RESULTS(1) Logistic regression analysis of the hypertension by all occupational stressors and risk factors of hypertension indicated that not only some common factors such as parents' hypertensive history, BMI, alcohol use and TG, but also responsibility for person, work locus of control and social support were significantly correlated with elevated risks of hypertension. (2) Logistic regression analysis of the hypertension by main dimensions of effort-reward imbalance model and risk factors of hypertension indicated that parents' hypertensive history, BMI, alcohol use, TG, and effort were significantly correlated with elevated risks of hypertension. Logistic regression analysis indicated the risk of hypertension had an effect on the FRI and effort (OR was 1.71 and 2.43 respectively). (3) For the job strain model, results indicated that parents' hypertensive history, UMI, alcohol use, TG, work locus of control and social support were significantly correlated with elevated risks of hypertension. But the main dimensions of job strain model (job demands and decision latitude) didn't enter regression equation. (4) The difference of prevalence of hypertension between high- and low stress level groups in male was statistically significant (OR = 3.13, P < 0.01), but the case was not the same in female (P > 0.05).

CONCLUSIONSOccupational stress might be risk factor of hypertension; The predictive power of effort-reward imbalance model for the development of hypertension would be larger than that of job strain model.

Adult ; Burnout, Professional ; complications ; Chi-Square Distribution ; China ; Cross-Sectional Studies ; Female ; Humans ; Hypertension ; etiology ; Logistic Models ; Male ; Middle Aged ; Risk Factors ; Sampling Studies ; Surveys and Questionnaires ; Young Adult