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Here, we developed a prostate cancer (PCa) risk nomogram including lymphocyte-to-monocyte ratio (LMR) for initial prostate biopsy, and internal and external validation were further conducted. A prediction model was developed on a training set. Significant risk factors with P < 0.10 in multivariate logistic regression models were used to generate a nomogram. Discrimination, calibration, and clinical usefulness of the model were assessed using C-index, calibration plot, and decision curve analysis (DCA). The nomogram was re-examined with the internal and external validation set. A nomogram predicting PCa risk in patients with prostate-specific antigen (PSA) 4-10 ng ml
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The intestinal barrier function disrupted in sepsis, while little is known about the variation in different phases of sepsis. In this study, mouse models of sepsis were established by caecal ligation and puncture (CLP). The H&E staining of sections and serum diamine oxidase concentration were evaluated at different timepoint after CLP. TUNEL assay and EdU staining were performed to evaluate the apoptosis and proliferation of intestinal epithelium. Relative protein expression was assessed by Western blotting and serum concentrations of pro-inflammatory cytokines was measured by ELISA. The disruption of intestinal barrier worsened in the first 24 h after the onset of sepsis and gradually recovered over the next 24 h. The percentage of apoptotic cell increased in the first 24 h and dropped at 48 h, accompanied with the proliferative rate of intestinal epithelium inhibited in the first 6 h and regained in the later period. Furthermore, the activity of nuclear factor kappa B (NF-κB) presented similar trend with the intestinal barrier function, shared positive correction with apoptosis of intestinal epithelium. These findings reveal the conversion process of intestinal barrier function in sepsis and this process is closely correlated with the activity of NF-κB signaling.
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The intestinal barrier function disrupted in sepsis, while little is known about the variation in different phases of sepsis. In this study, mouse models of sepsis were established by caecal ligation and puncture (CLP). The H&E staining of sections and serum diamine oxidase concentration were evaluated at different timepoint after CLP. TUNEL assay and EdU staining were performed to evaluate the apoptosis and proliferation of intestinal epithelium. Relative protein expression was assessed by Western blotting and serum concentrations of pro-inflammatory cytokines was measured by ELISA. The disruption of intestinal barrier worsened in the first 24 h after the onset of sepsis and gradually recovered over the next 24 h. The percentage of apoptotic cell increased in the first 24 h and dropped at 48 h, accompanied with the proliferative rate of intestinal epithelium inhibited in the first 6 h and regained in the later period. Furthermore, the activity of nuclear factor kappa B (NF-κB) presented similar trend with the intestinal barrier function, shared positive correction with apoptosis of intestinal epithelium. These findings reveal the conversion process of intestinal barrier function in sepsis and this process is closely correlated with the activity of NF-κB signaling.
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Consistency in quality of traditional Chinese medicine granules is an important factor to ensure reproducible clinical efficacy. In this study rhubarb dispensing granules were utilized to construct an efficacious near-infrared spectroscopy (eNIRS) assay by combining NIRS and biopotency. A NIR method for assaying rhubarb dispensing particles was established, and information on different batches was collected. The diarrhea-inducing biopotency of rhubarb dispensing granules was determined based on a constipation model induced by diphenoxylate in mice. The animal protocol was approved by the Animal Ethic Committee of 302 Hospital of Chinese PLA People's Liberation Army (ID: IACUC-2019-0010). Ten anthraquinones were determined in rhubarb dispensing granules by UPLC. The correlation between NIR and biopotency was analyzed and five characteristic bands that correlated highly with bioactivity were identified, including 4 011-4 390, 4 859-5 461, 7 012-7 493, 10 992-11 312 and 11 871-12 489 cm-1. There were some differences in the main bands of different chemical constituents. In summary, five active bands based on NIRS were identified and found to be able to achieve rapid on-line detection of rhubarb dispensing granule quality. This research model may also provide reference for quality control of other Chinese medicine dispensing granules.
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Objective To explore the method of real-time identification and early warning of drug-resistant bacteria through information technology, timely obtain information about drug-resistant bacteria in clinic.Methods Interface of Hospital Information System (HIS), Laboratory Information Management System (LIS) and healthcare-associated infection (HAI) surveillance system were reconstructed in 2015, HL7 was used as interface framework to design standard, LIS was as baseline data source and HIS as patient information database, multi-information exchange was implemented on the commonly used interface, identification and early warning of detected drug-resistant bacteria was conducted, identification of drug-resistant bacteria before and after informationization was compared.Results Through the information construction, the information interface showed that the rules of drug-resistant bacteria determination can be changed at will, data results were more accurate and timely.The judgment time of manual review was reduced from 30 minutes to 2 minutes every day, information of drug-resistant bacteria can be obtained timely and conveniently on any internal network computer by clinical staff.After timely identification and intervention of drug-resistant bacteria, 284, 289 and 309 strains of drug-resistant bacteria were detected in key departments of HAI control in 2015-2017, drug-resistant bacteria per 1 000 bed-day were 9.23‰ (284/30 773), 8.91‰ (289/32 429), and 8.34‰ (309/37 031) respectively, with a slight decrease.Conclusion Through information technology, drug-resistant bacteria can be found timely, and new drug-resistant bacteria can be identified and intervened in time, so as to effectively reduce the infection rate of drug-resistant bacteria.
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BACKGROUND: With the development of chemical synthesis technology, the application of anti-osteoporosis drugs incorporated into scaffolds to promote bone regeneration in osteoporotic bone defects has become a hot issue nowadays. OBJECTIVE: To introduce bone tissue engineering scaffolds, and to discuss and summarize the application of the scaffolds carrying anti-osteoporosis drugs for osteogenesis in osteoporotic bone defects. METHODS: PubMed, Web of Science, Springerlink, Medline, WanFang and CNKI databases were retrieved with "osteoporosis, bone defect, scaffold" as key words for relevant articles published from 2005 to 2017. Initially, 201 articles were retrieved, and finally 64 articles were selected for further analysis. RESULTS AND CONCLUSION: With the development of biochemical synthesis technology, various types of tissue-engineered bone scaffolds have been used for the treatment of osteoporotic bone defects. For example, the modified calcium phosphate cement, β-tricalcium phosphate, and hydroxyapatite all can promote bone regeneration. However, the ability of conventional scaffolds to promote bone regeneration is severely damaged under the state of osteoporosis. In this case, an anti-osteoporosis therapy becomes necessary. Considering severe adverse effects of systemic anti-osteoporosis drugs and limited local bone regeneration, the combination of scaffold implantation and local drug delivery can promote osteoporotic bone defect healing. Importantly, to incorporate bone regeneration inducers into scaffolds and steadily release with their biological activity is the key to success. Bisphosphonate, strontium, bone morphogenetic protein 2 and parathyroid hormone, traditional Chinese medicine and mesenchymal stem cells are the drugs commonly combined with tissue-engineered bone scaffolds. With the development of biotechnology, genetically modified stem cell-scaffold composites have gradually appealed to researchers.
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BACKGROUND:Stem cells combined with a three-dimensional scaffold have great potential for the treatment of osteoporotic bone defects. OBJECTIVE:To introduce the application of stem cells combined with the three-dimensional scaffold in repairing osteoporotic bone defects. METHODS:A computer-based search of PubMed, Web of Science, Springerlink, Medline, WanFang and CNKI databases was performed for relevant articles published from 2007 to 2017 with "stem cells, scaffold, osteoporosis, bone defects" as key words in English and Chinese, repsectively. Initially, 142 articles were retrieved, and finally 45 articles were included in result analysis. RESULTS AND CONCLUSION:Due to the potential of self-renewal and multilineage differentiation, stem cells can be used to repair or regenerate damaged tissues, which are considered as an ideal cell source for the treatment of diseases in orthopedics. The suitable scaffold can provide a favorable microenvironment for repairing the attachment and growth of the cells related to the bone defect, which can promote the healing without additional side effects. Furthermore, stem cells combined with three-dimensional scaffolds provide a promising clinical application for the treatment of osteoporotic bone defects by regulation of bone metabolism. In addition, gene-modified stem cells with three-dimensional scaffolds bring a huge potential in the treatment of osteoporotic bone defects. In conclusion, the combination of stem cells and three-dimensional scaffolds provides a new approach for the treatment of osteoporotic bone defects, which may be one of the future therapeutic strategies.
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This study was designed to establish a high performance liquid chromatography (diode array detector, DAD)-tandem mass chromatography (HPLC-DAD-MS/MS) method for the simultaneously screening 12 kinds of cough-relieving chemical drugs illegally added in anti-cough and antiasthmatic traditional Chinese medicines. This method involved liquid chromatography-tandem mass spectrometry. The separation was conducted by Kromasil100-5C18 (250 mm × 4.6 mm, 5 μm) and the mobile phase was consisted of 0.3% ammonium formate (pH 2.97) and methanol. After separated by HPLC, the suspected components were analyzed by MS/MS and DAD and ultra scan was used to identify these illegally added drugs. A fast and sensitive HPLC-DAD-MS/MS method for the simultaneously screening for illegal chemical compositions was established. The LOD of these substances were below 50 ng. The method was sufficiently selective and sensitive to detect illegal chemical compositions in anti-cough and antiasthmatic traditional Chinese medicines.
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OBJECTIVE@#To access the toxicity of forsythin from Forsythia suspensa leaves and evaluate its safety.@*METHODS@#Acute toxicity was determined by oral administration of a single dose of 18100 mg/kg forsythin in NIH mice. Sub-chronic toxicity was evaluated by oral administration of several doses of forsythin for 30 days at does of 0, 540, 1620, and 6480 mg/kg in SD rats.@*RESULTS@#In the acute toxicity study, mortality was not observed after 14 days. In addition, clinically relevant adverse effects, or variations in body weight or food consumption were not observed. Similarly, after 30 days in the sub-chronic toxicity study, no mortality or significant toxicological effects such as decreased food consumption, body weight, biochemical parameters and vital organs etc. were noticed.@*CONCLUSION@#The results revealed that the forsythin from Forsythia suspensa leaves has low or no toxicity via oral administration, and therefore is suitable for further development and applications.
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Objective To explore the effectiveness of applying minimally invasive simulation training in urologic clinical teaching .Methods Interns, training clinicians and junior doctors in our hospital, each group of six people, participating in the newthree-step teaching model of "theory learning +simulation training +clinical practice".The score before and after training on their theoretical knowledge , simulation training skills and clinical practice were assessed and the results were analyzed .Results The test scores of minimal invasive techniques theoretical knowl-edge and clinical practice assessment were significantly enhanced before training and after training ( P<0.05 ) .We have established a standardized minimally invasive simulation training in urologic clinical teaching .Conclusions Minimally invasive simulation training provides an effective and safe learning cultivation method for clinician and medical students , which could improve the clinical practice skills of young doctors in minimally invasive surgery as well as shorten the learning curve .
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Objective To develope the diagnostic criteria and surgical methods to treat micro-paraganagliomas (<1 cm) of urinary bladder ( PUB) , we now report a case series study including 5 individual cases .Methods Clinical data of 5 patients with micro-PUBs who underwent surgical treatment were obtained and analyzed retrospectively . Two male patients and three female patients were included in our study with the mean age of 51 ( range from 41 to 65 years) .4 patients were reported as symptomatic due to hypercatecholaminemia , while the other was free of symptoms.24-hour urine catecholamine ( CA) examination was utilized to qualitatively diagnose PUB , positive in 75%patients.Ultrasonography(USG), CT, MRI, 111In-DTPA-Octreotide scintigraphy (OctreoScan) and 131 I-MIBG scintigraphy were used to locate the tumor , positive in 80%, 20%, 75%, 25%and 33%patients respectively .What's more, all 5 patients underwent transurethral resection of tumor .Overfilling of bladder and puncture following ultra-sonography guidance were performed to locate the tumors , when tumors were absent in surgical vision .Results All tumors were located and resected completely with no open conversions .It took 0.5 to 26 minutes to locate the tumor and another 3 to 10 minutes to resect the tumors .All lesions were diagnosed by histopathological confirma-tion, especially by immunohistochemical staining.Blood pressure return to normal level after the procedures.No local recurrence or distal metastasis were observed by performing 24-hour urine CA test , USG, cystoscopy and MRI within adequate follow-up.The mean follow-up duration was 38.6 months, ranging from 6 to 120 months.Conclu-sions USG and MRI examination were considered better in detecting micro PUB than CT-scan.Overfilling of blad-der and puncture following USG guidance may support more accurate tumor location intraoperatively if the tumors were not found in transurethral resection procedures .
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OBJECTIVE:To observe clinical efficacy and safety of tiotropium bromide combined with budesonide formoterol in the treatment of severe bronchial asthma in adults. METHODS:A total of 110 adult patients with severe bronchial asthma were selected from our hospital during Mar. 2013-Mar. 2016 were divided into control group and observation group according to random number table,with 55 cases in each group. Control group was given Budesonide formoterol powder for inhalation,2 inhalations each time,bid;observation group was additionally given Tiotropium bromide powder for inhalation 18 μg,qd,on the basis of con-trol group. Both groups were treated for 6 months. Clinical efficacies as well as ACT scores,respiration function indexes and the times of acute attack of asthma before and after treatment,the occurrence of ADR were compared between 2 groups. RESULTS:The efficiency rate and total response rate of observation group were 54.55% and 96.36%,which were significantly higher than 32.73%,78.18% in control group,with statistical significance(P0.05). After treatment,ACT scores of 2 groups were significantly higher than before treatment;FEV1,FEV1/FVC and PEF were significantly greater than be-fore treatment,PEFR was significantly lower than before treatment;and the indexes in observation group was significantly better than control group,with statistical significance(P0.05). CONCLUSIONS:Tiotropium bromide combined with budesonide formoter-ol in the treatment of severe bronchial asthma in adults can effectively relieve the severity of disease,improve respiration function, reduce the times of acute attack of asthma,and have good therapeutic efficacy and safety.
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Objective To access the toxicity of forsythin from Forsythia suspensa leaves and evaluate its safety. Methods Acute toxicity was determined by oral administration of a single dose of 18 100 mg/kg forsythin in NIH mice. Sub-chronic toxicity was evaluated by oral administration of several doses of forsythin for 30 days at does of 0, 540, 1 620, and 6 480 mg/kg in SD rats. Results In the acute toxicity study, mortality was not observed after 14 days. In addition, clinically relevant adverse effects, or variations in body weight or food consumption were not observed. Similarly, after 30 days in the sub-chronic toxicity study, no mortality or significant toxicological effects such as decreased food consumption, body weight, biochemical parameters and vital organs etc. were noticed. Conclusion The results revealed that the forsythin from Forsythia suspensa leaves has low or no toxicity via oral administration, and therefore is suitable for further development and applications.
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Objective To explore the data accuracy acquired by the anesthesia information management system.Methods Totally 100 patients from two hospitals were selected randomly,whose anesthesia time was estimated more than 1 h.The vital signs data acquired by the system were compared with those by the monitor once every 5 min±30 s,and totally there were 12 times of comparison executed.SAS 9.2 software was used for statistical analysis.Results In FAS set the system had the total data accuracy being 100％,95％ credibility interval from 86.87％ to 97.30％ and the BMDL higher than 85％;in PPS set he total data accuracy was 100％,95％ credibility interval was from 92.89％ to 100％ and the BMDL was also higher than 85％.The system gained "Excellent" or "Good" grade in system response,stability,functional interface operability and the accuracy of special functions.Conclusion The system acquires and stores the vital signs data automatically and accurately,enhances anesthesia information in objectivity,authenticity and tractability,and has high values for enhancing anesthesia safety,medical safety and scientific research.
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Objective To explore the data accuracy acquired by the anesthesia information management system.Methods Totally 100 patients from two hospitals were selected randomly,whose anesthesia time was estimated more than 1 h.The vital signs data acquired by the system were compared with those by the monitor once every 5 min±30 s,and totally there were 12 times of comparison executed.SAS 9.2 software was used for statistical analysis.Results In FAS set the system had the total data accuracy being 100％,95％ credibility interval from 86.87％ to 97.30％ and the BMDL higher than 85％;in PPS set he total data accuracy was 100％,95％ credibility interval was from 92.89％ to 100％ and the BMDL was also higher than 85％.The system gained "Excellent" or "Good" grade in system response,stability,functional interface operability and the accuracy of special functions.Conclusion The system acquires and stores the vital signs data automatically and accurately,enhances anesthesia information in objectivity,authenticity and tractability,and has high values for enhancing anesthesia safety,medical safety and scientific research.
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This paper was aimed to investigate the protective effects of luteolin (Lut) against acetaminophen（APAP）-induced damage in L02 liver cells. CCK-8 was used to detect the cell activation of L02 cells treated by different Lut. The concentration and time of APAP induced L02 cell damage was screened. The effect of Lut on APAP induced apoptosis of L02 cells was detected by cell morphological observation, CCK-8 assay and flow cytometry. The contents of MDA, GSH and SOD activity in cell supernatant were detected by colorimetric assay. The expression of apoptosis-related genes Bax, Bcl-2 and caspase-3 was detected by RT-PCR. The results showed that Lut in 2.5-40 μmol•L⁻¹ range does not affect the activity of L02 cells; 12 mmol•L⁻¹ APAP incubated with L02 cell 12 h to establish damage model. Compared with the model group, the cell status of Lut group was significantly improved, the cell body was increased, the adherence ability was recovered, and the apoptosis rate was obviously decreased. MDA content decreased significantly (P<0.05, P<0.01), GSH and SOD activity significantly increased (P<0.05, P<0.01), at the same time, it could up-regulate expression of Bcl-2 mRNA and down-regulate the expression of Bax and caspase-3 mRNA. In conclusion,Lut has protective effect on APAP induced L02 cell injury, and its mechanism may be related to the reduction of oxidative stress and inhibition of apoptosis.
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Objective: To explore the effect of caveolin-1 ( Cav-1 ) on lipopolysaccharide ( LPS )-induced airway mucous hypersecretion.Methods:16HBE human airway epithelial cells with Toll-like receptor 4(TLR4) inhibitor,nuclear factor-kappa B(NF-κB) inhibitor,Cav-1 siRNA or plasmid pr-treated,further stimulated with LPS.The cells were divided into 8 groups:the control group, the LPS group,the LPS+Cav-1 expression group,the LPS+Cav-1 siRNA group,the LPS +negative siRNA group,the LPS +empty vector group,the LPS +E5564 group, the LPS +PDTC group.Cell survival rate was detected by MTT assay.Transcription level of mucin(MUC)5AC was evaluated with RT-PCR.The level of MUC5AC protein was measured by ELISA.The expression of TLR4,Cav-1 and phosphorylated IκBα( p-IκBα) were measured by Western blot.MUC5AC protein changes were observed by immunofluorescence and confocal laser technology.Results:LPS remarkably increased MUC5AC,as well as TLR4,p-IκBα(P<0.05).These effects were prevented by E5564 and PDTC.We found that the overexpression of Cav-1 further enhanced the expression of TLR4, p-IκBαand MUC5AC.However,downregulation of Cav-1 inhibited the expression of TLR4,p-IκBα,MUC5AC.Conclusion: Cav-1 enhances LPS-induced MUC5AC hypersecretion through TLR4/NF-κB signaling pathway.
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OBJECTIVE To investigate the effect of furanodiene(FDE),a diterpene derived from the medicinal plant Zedoary,on apoptosis of human gastric cancer MGC-803 cells induced in vitro. METHODS MGC-803 cells were treated with FDE 46.29~740.74μmol·L-1 for 24,48 and 72 h,and the cell viability was detected with MTT assay. Cell morphology was observed by light microscopy and Hoechst33342 staining. Flow cytometry was used to detect cell apoptotic rate and cell cycle. Rh123 staining and fluorescence probe DCFH-DA were employed to detect the changes in mitochondrial membrane potential (MMP) and reactive oxygen species(ROS). RESULTS MTT Results showed that FDE 46.29-740.74μmol · L-1 exhibited significantly higher cytotoxicity to gastric cancer MGC-803 cells. IC50 for MGC-803 of 24,48 and 72 h treatment was 347.91,257.41 and 101.01μmol·L-1,respectively. Treatment with FDE 92.58-370.32μmol·L-1 for 24 h also caused significant morphological changes in MGC-803 cells. AnnexinⅤ-FITC/PI double staining showed that the apoptotic rate increased after FDE 92.58-370.32μmol·L-1 treatment for 24 h(P<0.05). FDE enabled MGC-803 cell cycle arrest in S phase. DCFH-DA staining showed that FDE resulted in an increase in intracellular ROS levels(P<0.05) when PDE concentration was 370.37μmol·L-1(P<0.05). MMP decreased after FDE treatment when PDE concen?tration was 370.37μmol·L-1(P<0.05). CONCLUSION FDE Possesses potent tumor selected toxicity and can induce apoptosis of MGC-803 cells through cell cycle arresting,which is related to inhibition of DNA biosynthesis.
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<p><b>OBJECTIVE</b>To study clinical outcomes of Chinese medidine fumigation and massage therapy for the treatment of knee stability and functional recovery after anterior cruciate ligament reconstruction operation,and to explore the effect on tendon-bone healing.</p><p><b>METHODS</b>Total 50 patients were divided into two groups: the control group (normal rehabilitation therapy group),the treatment group (Chinese medicine fumigation and manipulation group). There were 25 patients in the control group, including 16 males and 9 females, who were treated with isometric muscle training, with the gradually enlarging amplitude of flexion and progressive loading of bearing training for knee recovery. There were 25 patients in the treatment group, including 15 males and 10 females,who were treated with the conventional rehabilitation therapy combined with Chinese medicine fumigation and massage therapy. The Chinese herbs named as Haitongpi decoction was steamed by a special equipment to fumigate the knee after operation; Based on the biomechanical parameters of the ligament reconstruction, the massage therapy was designed to control the degree of the knee flexion and release the adhesion for early recovery of knee functions. The Lysholm knee function evaluation system was used, and MRI examination was performed to measure the change in width of ligament tunnel in femur and tibia to evaluate the safety and stability of the treatment.</p><p><b>RESULTS</b>Lysholm system showed that two groups both had improving results from the 1st month after operation to the 3rd month (treatment group, F=36.54, P<0.05; the control group, F=28.12, P<0.05), and the results of the treatment group was better than that of the control group at the observation point (the 1st month, t=0.105, P<0.05; the 3rd month, t=5.361, P<0.01). There was no difference between the two groups when evaluating the bone and tendon healing 3 and 12 months after operation (P>0.05), indicating that Chinese rehabilitation therapy was a safety treatment without the influence on the loosing of tendon.</p><p><b>CONCLUSION</b>Chinese medicine fumigation and massage therapy can early improve the knee function after the anterior cruciate ligament reconstruction operation without the disturbance of the knee stability.</p>
Asunto(s)
Adulto , Femenino , Humanos , Masculino , Ligamento Cruzado Anterior , Cirugía General , Lesiones del Ligamento Cruzado Anterior , Reconstrucción del Ligamento Cruzado Anterior , Estudios de Casos y Controles , Terapia Combinada , Medicamentos Herbarios Chinos , Química , Fumigación , Traumatismos de la Rodilla , Quimioterapia , Cirugía General , Terapéutica , Articulación de la Rodilla , Cirugía General , Masaje , Rango del Movimiento Articular , Recuperación de la FunciónRESUMEN
<p><b>BACKGROUND</b>Staphylococcus aureus is one of the predominant causes of skin and soft tissue infections (SSTIs), but limited data were available regarding the characterization of S. aureus from SSTIs patients in Jiangsu Province in China. We aimed to investigate the molecular epidemiology of S. aureus among SSTIs patients in two hospitals of Jiangsu Province.</p><p><b>METHODS</b>Sixty-two patients with SSTIs from two Chinese hospitals in Jiangsu Province were enrolled in this study, and 62 S. aureus isolates were collected from February 2014 to January 2015. S. aureus isolates were characterized by antimicrobial susceptibility testing, toxin gene detection, and molecular typing with sequence type, Staphylococcus protein A gene type, accessory gene regulator (agr) group, and Staphylococcal cassette chromosome mec t ype.</p><p><b>RESULTS</b>Sixteen (25.8%) methicillin-resistant S. aureus (MRSA) isolates were detected, and there was no isolate found resistant to vancomycin, teicoplanin, sulfamethoxazole-trimethoprim, and linezolid. The sei was the toxin gene most frequently found, and no lukS/F-PV-positive isolates were detected among the SSTIs' patients. Molecular analysis revealed that ST398 (10/62, 16.1%; 2 MRSA and 8 methicillin-susceptible S. aureus) to be the dominant clone, followed by ST5 (8/62, 12.9%) and ST7 (8/62, 12.9%).</p><p><b>CONCLUSIONS</b>The livestock ST398 was the most common clone among patients with S. aureus SSTIs in Jiangsu Province, China. Surveillance and further studies on the important livestock ST398 clone in human infections are necessarily requested.</p>