1.Study of the virulence genes and molecular characteristics of Staphylococcus aureus strains
Chinese Journal of Microbiology and Immunology 2015;(1):46-50
Objective To investigate the molecular characteristics and virulence genes of 488 Staphylococcus aureus ( S.aureus) strains isolated from the People′s Hospital of Huangzhou District in Hubei Province during 2009 to 2013.Methods The minimum inhibitory concentrations (MICs) of Oxacillin and Cefoxitin to S.aureus were determined by agar dilution method .PCR analysis was used for the detection of staphylococcal cassette chromosome mec ( SCCmec ) and multilocus-sequence typing ( MLST ) .Multiplex PCR analysis was performed to detect the 31 common virulence genes .Results A total of 227 methicillin-resistant S.aureus ( MRSA) strains were identified from 488 S.aureus strains with a prevalence rate of 46.5%.The SCCmec Ⅲtype was the prevalent genotype accounting for 81.5% of the 227 MRSA strains, followed by Ⅳtype which accounted for 10.1%.The predominant clonal complex ( CC) of MRSA strains was CC8 accounting for 81.1%, followed by CC59 (4.8%) and CC5 (3.1%).CC1 was the predominant clonal complex of methicillin-sensitive S.aureus (MSSA) strains, accounting for 34.1% of the 261 MSSA strains, followed by CC398 (21.8%), CC121 (14.9%) and CC59 (13.0%).The number of MSSA iso-lates carrying no less than 15 test virulence genes was 109 ( 48 .2%) , which was significantly higher than that of MRSA isolates (28.2%) (P=0.002).A close relationship between the enterotoxins genes (sed, sej and ser) and the CCs of CC8 and CC5 was identified.Exfoliatin genes (eta and etb) and lukED gene were detected only in strains that belonged to CC 1.Strains that belonged to CC 1 and CC59 clones showed higher rates of pvl gene as compared with those belonging to other CCs (P<0.05).Conclusion The prevalence rate of MRSA strains was 46.5%in Huangzhou District, Hubei Province, which was consistent with the na-tional average rate .The predominant genotype of MRSA strains was ST 239-MRSA-SCCmecIII , accounting for 79.3%.Effective measures should be taken by Health sectors to control the spread of MRSA strains .The MSSA isolates carried more virulence genes than MRSA strains .The spectrums of virulence genes were var-ied in strains belong to different CCs clones , indicating the close relationship between virulence genes and genetic backgrounds .
2.Epidemiology of heterogeneous vancomycin-intermediate Staphylococcus aureus from sterile body fluid specimens
International Journal of Laboratory Medicine 2015;(8):1117-1119
Objective To investigate the prevalence and molecular characteristic of heterogeneous‐ vancomycin intermediate Staphylococcus aureus(hVISA) among methicillin‐resistant Staphylococcus aureus (MRSA)strains isolated from sterile body fluid specimens from 2009 to 2013 in Huangzhou District People′s Hospital in Huanggang City .Methods The minimum inhibitory con‐centrations (MIC) of antibiotics was determined by agar dilution method .The hVISA strains were detected by population analysis profile/area under the curve method (PAP/AUC) .The staphylococcal cassette chromosome mec (SCCmec) ,multilocus‐sequence typing (MLST) ,accessory gene regulator (agr) and Staphylococcus aureus protein A(spa) typing of hVISA strains were detected using PCR method .Results 32 hVISA strains were detected among 285 MRSA strains ,the prevalence rate of hVISA was 11 .2% , and the detection rates of hVISA from 2009 to 2013 were 0 .0% ,6 .4% ,9 .0% ,14 .3% and 18 .8% ,respectively ,showed an increas‐ing trend .The main hVISA epidemic clone was ST239‐SCCmecIII‐ t030‐agrI type(28strains ,accounting for 87 .5% ) .Conclusion The detection rate of hVISA showed an increasing trend in the past 5 years ,should be paid attention to strictly control the utiliza‐tion of glycopeptide drugs .
3.The Relationship Between the Dynamic Change of High-sensitivity C-reactive Protein,IL-1?,IL-6 and the Prognosis of the Patients with Acute Traumatic Brain Injury
Conglin JIA ; Zhiping SI ; Yunlong TONG
Journal of Medical Research 2006;0(11):-
Objective To study the dynamic change of high-sensitivity C-reactive protein(hCRP),interleukin-1(IL-1?)interleukin-6(IL-6)in acute traumatic brain injury,and the correlation between the dynamic change and the scale of brain injury and the prognosis of the patients.Methods 192 cases patients were divided into different groups according to the Glasgow Coma Scale(GCS)and the Glasgow outcome Scale(GOS)three months later discharged from hospital respectively.The concentration of serum CRP,IL-1?,IL-6 were detected with immunoturbidimetry and ABC-ELISA 24 with in hours after traumatic brain injury and the concentration of serum after iniwn at ond day,three days and seven days was detected as well.Results Serum hCRP levels were remarkably elevated and reached peak value within 24 hours,and then gradually decreased.There were a negative correlation between hCRP,IL-1?,IL-6 and the patient's GCS groups(r=-0.162,P
4.The diagnostic value of scoring systems in critical acute pancreatitis: a single center retrospective study
Yuhui CHEN ; Zhiping XU ; Dongliang YANG ; Zhihui TONG ; Weiqin LI
Chinese Journal of Pancreatology 2015;15(3):145-149
Objective To investigate the early diagnostic value of traditional scoring systems in critical acute pancreatitis.Methods From Jan 2007 to Ju12013,consecutive 184 patients with AP who were admitted to the surgical intensive care unit of the Institute of General Surgery,Nanjing Generai Hospital of Najing Militery Region within 72 h from the onset of the disease were studied.Patients were assigned to four groups,including mild,moderate,severe and critical AP according to the determinant based classification and the receiver operating characteristics(ROC) curve was used to predict the presence of critical AP,and Z test and logistic regression was applied to determine the diagnostic value of traditional scoring systems.Results The area under ROC (AUC) of Sofa,BISAP and CTSI score for early diagnosis of critical AP was 0.896,0.877 and 0.862;the best cut off value was 4.5,9.5 and 2.5.Moreover,the AUC of APACHE Ⅱ and Ranson score was 0.807 and 0.707,and the best cut off value was 8.5 and 3.5,respectively.Z test showed early diagnosis rate of Sofa,BISAP,CTSI score was significantly higher than that in Ranson score,and the difference between the two groups was statistically significant (P < 0.05);though they were higher than APACHE Ⅱ score,the difference between the two groups was not statistically significant (P > O.05).Logistic regression showed that high APACHE Ⅱ,Sofa,BISAP and CTSI score were independent risk factors for the development of critical AP (P < 0.05).Conclusions Sofa,CTSI and BISAP score may be clinically important for early diagnosis of critical AP.
5.Determination of Scopoletin in Herba Artemisiae hedinii by HPLC
Xiaozhen LIU ; Zhiping TONG ; Rui TAN ; Jun WAN ; Song XIE
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(10):2233-2235
In this paper, a qualitative and quantitative analysis method was established for the scopoletin in herba Artemisiae hedinii hy HPLC. The chromatographic column was Agilent TC-C18 (4.6 mm×250 mm, 5μm);the tem-perature of column was 30℃, eluted with a mobile phase consisted of methanol and 0.3%phosphoric acid solution and gradient elution at a flow rate of 1.0 mL·min-1. The detection wavelength was 344 nm. The results showed that the mass concentration and peak area of scopoletin had a good linear relationship within the range of measurement (r=0.999 9). The reproducibility was good;and the RSD was 1.51%. The average sample recovery rate was 101.42%. It was concluded that the established method was stable, reliable and simple. It provided theoretical evidences for the quality evaluation and quality control of herba A. hedinii.
6.Monitoring and nursing of gestational diabetes patients treated with continuously subcutaneous insulin infusion
Lifang TONG ; Qifu LI ; Zhiping LIU ; Qingfeng CHENG
Journal of Endocrine Surgery 2009;3(3):184-186,196
Objective To study the effects of the intensive treatment with continuously subcutaneous in-sulin infusion(CSII) in patients with gestational diabetes and the nursing during the treatment. Methods From Jan 2007 to Aug 2008, 42 patients with gestational diabetes underwent continuously subcutaneous insulin infu-sion, and a standard nursing plan of patients was made up before treatment. The efficacy of treatment and nursing were analyzed. Results After using the CSII, the blood glucose of all patients was controlled at normal level after 7.0±1.5d. 88.1% of patients were satisfied with the effect and one patient was dissatisfied with the treatment because of losing the fetus for sever bleeding caused by placenta previa. 40.5% of patients with different degrees of anxiety accepted CSII therapy after psychological care by nurses;In 9.5% of patients the infusion bump a-larmed because of needle blockage or infusion tube bending, it restarted working and ran normally once the needle replaced or bending tube unwinded. 7.1% of patients developed hypoglycemia during CSII and recovered after eating. Conclusions Intensive treatment with CSII in gestational diabetes patients can effectively control blood glucose level The effect can be improved by taking specific nursing measures.
7. Mechanism of lung injury of rats induced by inhalation of white smoke from burning smoke pot
Pei CUI ; Haiming XIN ; Qiu ZHAN ; Zhiping TANG ; Chunjiang DENG ; Xiaohui LI ; Yanhua LAI ; Rongsheng LI ; Anning CHEN ; Yalin TONG
Chinese Journal of Burns 2018;34(7):476-480
Objective:
To explore mechanism of lung injury of rats induced by inhalation of white smoke from burning smoke pot.
Methods:
Forty-eight Sprague Dawley rats were divided into control group (
8.Effects of hospital discharge readiness plan based on deep integration of medical nursing and rehabilitation in children with cerebral palsy
Zhiping WANG ; Jihong FANG ; Guanglei TONG ; Sinan LI ; Hong LI ; Kun XUAN ; Nan XIA ; Yulin LI ; Man XING ; Yujie HU
Chinese Journal of Modern Nursing 2022;28(22):3010-3016
Objective:To explore the effect of the hospital discharge readiness plan based on deep integration of medical nursing and rehabilitation in children with cerebral palsy.Methods:From January 2020 to September 2021, 60 children with cerebral palsy and their 60 parents admitted to the Children's Rehabilitation Department of Anhui Children's Hospital were selected as the research object. The children and parents were divided into the observation group and the control group by random number table, with 30 children and 30 parents in each group. The control group was given routine nursing, and the observation group was given the hospital discharge readiness plan based on the deep integration of medical nursing and rehabilitation. On the first day of admission and the day before discharge, the effects were evaluated using the Chinese version of the Chinese version of the Readiness for Hospital Discharge Scale (RHDS) -Parent Form, the Chinese version of the Quality of Discharge Teaching Scale (QDTS) -Parent Form, the Activities of Daily Living (ADL) Rehabilitation Nursing Rating Scale for Children with Cerebral Palsy.Results:After the intervention, the scores of the observation group were higher than those of the control group in terms of readiness for hospital discharge, quality of discharge teaching, and the differences were statistically significant ( P<0.05) . Conclusions:The hospital discharge readiness plan based on deep integration of medical nursing and rehabilitation in children with cerebral palsy can effectively improve their discharge readiness, the quality of discharge teaching and the ADL of children with cerebral palsy.
9.Haploidentical transplantation has a superior graft-versus-leukemia effect than HLA-matched sibling transplantation for Ph- high-risk B-cell acute lymphoblastic leukemia
Menglin FAN ; Yu WANG ; Ren LIN ; Tong LIN ; Fen HUANG ; Zhiping FAN ; Yajing XU ; Ting YANG ; Na XU ; Pengcheng SHI ; Danian NIE ; Dongjun LIN ; Zujun JIANG ; Shunqing WANG ; Jing SUN ; Xiaojun HUANG ; Qifa LIU ; Li XUAN
Chinese Medical Journal 2022;135(8):930-939
Background::Compared with human leukocyte antigen (HLA)-matched sibling donor (MSD) transplantation, it remains unclear whether haploidentical donor (HID) transplantation has a superior graft-versus-leukemia (GVL) effect for Philadelphia-negative (Ph-) high-risk B-cell acute lymphoblastic leukemia (B-ALL). This study aimed to compare the GVL effect between HID and MSD transplantation for Ph- high-risk B-ALL.Methods::This study population came from two prospective multicenter trials (NCT01883180, NCT02673008). Immunosuppressant withdrawal and prophylactic or pre-emptive donor lymphocyte infusion (DLI) were administered in patients without active graft-versus-host disease (GVHD) to prevent relapse. All patients with measurable residual disease (MRD) positivity posttransplantation (post-MRD+) or non-remission (NR) pre-transplantation received prophylactic/pre-emptive interventions. The primary endpoint was the incidence of post-MRD+.Results::A total of 335 patients with Ph- high-risk B-ALL were enrolled, including 145 and 190, respectively, in the HID and MSD groups. The 3-year cumulative incidence of post-MRD+ was 27.2% (95% confidence interval [CI]: 20.2%-34.7%) and 42.6% (35.5%-49.6%) in the HID and MSD groups (P = 0.003), respectively. A total of 156 patients received DLI, including 60 (41.4%) and 96 (50.5%), respectively, in the HID and MSD groups ( P= 0.096). The 3-year cumulative incidence of relapse was 18.6% (95% CI: 12.7%-25.4%) and 25.9% (19.9%-32.3%; P = 0.116) in the two groups, respectively. The 3-year overall survival (OS) was 67.4% (95% CI: 59.1%-74.4%) and 61.6% (54.2%-68.1%; P = 0.382), leukemia-free survival (LFS) was 63.4% (95% CI: 55.0%-70.7%) and 58.2% (50.8%-64.9%; P= 0.429), and GVHD-free/relapse-free survival (GRFS) was 51.7% (95% CI: 43.3%-59.5%) and 37.8% (30.9%-44.6%; P= 0.041), respectively, in the HID and MSD groups. Conclusion::HID transplantation has a lower incidence of post-MRD+ than MSD transplantation, suggesting that HID transplantation might have a superior GVL effect than MSD transplantation for Ph- high-risk B-ALL patients.Trial registration::ClinicalTrials.gov: NCT01883180, NCT02673008.
10.Biomechanical Study of Posterior Dynamic Fixation at Atlantoaxial Joints
Jie TONG ; Wei JI ; Zhiping HUANG ; Ruozhou ZHOU ; Zuozhong FANG ; Qing’an ZHU
Journal of Medical Biomechanics 2021;36(2):E189-E194
Objective To evaluate the influence of dynamic fixation (rotating and sliding pedicle screws) on stability of the atlantoaxial joint. Methods A series of in vitro biomechanical tests were performed using six fresh adult cervical spines (occipital bone-C4 segment) to simulate different conditions in surgery, including the intact state, the injury state, rigid fixation, rotating pedicle screw fixation, sliding pedicle screw fixation. The repeated measurement design was employed, and under intact, injury and different fixation states, the pure moment of 1.5 N·m in flexion-extension, left-right lateral bending, left-right axial rotation directions were applied using the spinal testing machine. The movement of atlantoaxial spine was measured consecutively by three-dimensional (3D) measurement system in order to analyze the range of motion (ROM) and neutral zone (NZ) of atlantoaxial joints. Results Under injury state, ROM of atlantoaxial joints was significantly larger than that under intact state during flexion, extension, lateral bending and rotation, leading to the instability of atlantoaxial joints. ROM of fixation segments was significantly reduced during flexion, extension, lateral bending and rotation after rigid and dynamic fixation. Compared with rigid fixation, dynamic fixation showed a significant ROM increase during lateral bending. NZs of fixation segments after dynamic fixation were significantly reduced. There were no significant ROM differences between rigid fixation and dynamic fixation. Conclusions The stability of atlantoaxial joints by dynamic fixation during flexion, extension and rotation was comparable to that by rigid fixation, but weaker during lateral bending. Dynamic screw fixation can maintain the relative stability of atlantoaxial joints.