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@# Objective To investigate the drug resistance of Enterobacter cloacae isolated from blood samples in 75 member units of the Bacterial Drug Resistance Monitoring Network in Hebei, 2016- 2021, so as to provide a basis for rational drug use in clinic. Methods WHONET 5.6 software was used to retrospectively analyze drug susceptibility of Enterobacter cloacae isolated from 32 secondary hospitals and 43 tertiary hospitals. SPSS19.0 software was used for statistical analysis. Results After removing the duplicate strains, 1 225 strains of E. cloacae were isolated from blood samples of 75 hospitals during 6 years, including 157 strains from secondary hospitals and 1 068 strains from tertiary hospitals. In this study, the resistance of Enterobacter cloacae to 16 kinds of antibiotics was analyzed. The drug resistance rates to cefuroxime (52.4%-67.8%), piperacillin (27.4%-31.2%), ceftazidime (27.8%-35.5%), ceftriaxone (29.5%-45.0%), aztreonam (22.2%-32.3%), cotrimoxazole (21.6%-28.7%) were higher; the resistance rates to amikacin and tobramycin were lower than 15.0%. The resistance rates to imipenem and meropenem were 3.6%-12.3% and 5.1%-11.4%, respectively. The resistance rate to ciprofloxacin in tertiary hospitals was 22.4%, and the resistance rate to cotrimoxazole was 23.9%. Except for these two antimicrobials, the resistance rates to other antimicrobial drugs in tertiary hospitals were higher than that in secondary hospitals. A total of 121 carbapenem-resistant Enterobacter cloacae strains were detected in the past 6 years, with an increasing detection rate (χ2trend=6.305, P=0.012). Conclusions Enterobacter cloacae has great differences in antimicrobial resistance to different antibiotics, and is sensitive to carbapenems. The drug resistance in tertiary hospitals is generally higher than that in secondary hospitals. Drug resistance monitoring and drug resistance mechanism research should be strengthened to better guide clinical drug use and curb the rise of drug resistance.
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Objective To analyze the viral load and complications in children patients with severe hand-foot-mouth disease(HFMD) caused by enterovirus type 71(EV71) .Methods The clinical data in 320 children patients with severe HFMD caused by EV71 treated in this hospital from January 2013 to December 2016 were retrospectively analyzed .The viral load in children patients with severe EV 71 caused HFMD was detected by adopting the fluorescence quantitative polymerase chain reaction (Q-PCR) ,and its correlation with the compli-cations was analyzed .Results The viral load in the children patients with critical type HFMD was significant-ly higher than that in the children patient with severe type HFMD ,the difference was statistically significant (P<0 .05) .Compared with severe HFMD ,the incidence rate of nervous system damage ,respiratory failure , circulatory failure and myocardial damage in critical type HFMD were significantly increased ,the difference was statistically significant (P<0 .05) .Compared with the EV71 viral load in the children patients with asep-tic meningitis ,the EV71 viral load in the children patients with brainstem encephalitis and acute flaccid paraly-sis were increased significantly ,moreover the EV71 viral load in the children patients with acute flaccid paraly-sis was significantly higher than that in the children patients with brainstem encephalitis ,the difference was statistically significant (P<0 .05) .Conclusion The viral load in children patients with severe HFMD caused by EV71 is correlated with severity of disease condition and complications ,and the viral load detection is con-ducive to disease condition monitoring and guidance of clinical treatment .
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<p><b>OBJECTIVE</b>To investigate the differences between the Test of Infant Motor Performance (TIMP) data from the infants at 38-58 weeks of postconceptual age in three hospitals in Chongqing, China and the America norms, and to provide a reference for the introduction and application of TIMP in China.</p><p><b>METHODS</b>TIMP was used to assess 642 infants with 38-58 weeks of postconceptual age who visited the departments of preterm infants or child healthcare in the Second Affiliated Hospital of Army Medical University, Shapingba Maternal and Child Health Hospital in Chongqing, and Chongqing Maternal and Child Health Hospital between January and December, 2016. The assessment scores were analyzed and compared with the America norms.</p><p><b>RESULTS</b>The TIMP scores increased with the increasing postconceptual age, with 37±5 points in the 38-39week group and 83±12 points in the 56-57week group. All age groups had a significantly lower mean score than the America norms (P<0.001).</p><p><b>CONCLUSIONS</b>TIMP scores can reflect the motor performance in infants with various postconceptual ages. The TIMP scores from the infants with a postconceptual age of 38-58 weeks in three hospitals in Chongqing are significantly different from the America norms, suggesting that it is very necessary in China to establish the Chinese norms for assessing motor performance in infants using TIMP.</p>
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Humans , Infant , Infant, Newborn , Gestational Age , Infant Behavior , Infant, Premature , Motor SkillsABSTRACT
Objective To observe the efficacy ofHuayu Kangyou Formula combined with Western medicine for Hp-related peptic ulcer disease;To discuss the mechanism of action.Methods Totally 152 patients were randomly divided into treatment group and control group, 76 cases in each group. Control group was given standard triple therapy, while treatment group was givenHuayu Kangyou Formula based on the standard triple therapy. The treatment lasted for 6 weeks. The clincal symptom scores and gastroscopy were observed to evaluate the therapeutic effect, adverse reactions were recorded, and relapse of ulcer was followed-up.Results The total effective rates of clinical symptoms in the treatment group and the control group were 94.74% (72/76) and 84.21% (64/76), respectively;the excellent rates were 78.95% (60/76) and 55.26% (42/76), respectively;the incidences of adverse reactions were 5.26% (4/76) and 13.16% (10/76), respectively;the relapse rates after 1 year of follow-up visit were 13.63% (6/44) and 41.67% (10/24), respectively, with statistical significant difference between the two groups (P<0.05).ConclusionHuayu Kangyou Formula combined with Western medicine can effectively improve the efficacy of Hp-relative peptic ulcer disease, reduce adverse reaction rate and relapse rate.
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<p><b>OBJECTIVE</b>To compare clinical efficacy differences among electroacupuncture (EA), transcutaneous electrical nerve stimulation (TENS) therapy and acupoint massage (AM) on periarthritis of shoulder.</p><p><b>METHODS</b>One hundred and twenty cases were randomly divided into an EA group, a TENS group and an AM group, 40 cases in each one. The selection of acupoints in the three groups were all the same, which were Jianqian (Extra), Xiabai (LU 4), Jianyu (LI 15), Binao (LI 14), Jianliao (TE 14), Naohui (TE 13), Xiaohai (SI 8) and Houxi (SI 3). EA was applied in the EA group with dense-disperse wave for 30 min, TENS therapy with dense-disperse wave for 30 min in the TENS group and AM combined with mobilization manipulation of Tuina on the shoulder in the AM group. All of the treatment was given once a day, six times a week and totally 4 weeks were required. The score of visual analogue scale (VAS) and improvement of shoulder joint activities in the three groups before and after the treatment were observed.</p><p><b>RESULTS</b>After the treatment, the VAS score and activities of shoulder joint were all improved in the three groups (all P < 0.001) and AM group had more obvious improvement than TENS group and EA group (all P < 0.05). The effective and curative rate was 61.50 (24/39) in the AM group, which was superior to 42.9% (15/35) in the EA group and 44.4% (16/36) in the TENS group (both P < 0.05). The effective and curative rate of shoulder joint activities in the AM group was 61.5% (24/39), which was superior to 48.6% (17/35) in the EA group and 44.4% (16/36) in the TENS group (both P < 0.05).</p><p><b>CONCLUSION</b>The acupoint massage has obvious clinical efficacy on periarthritis of shoulder, which could effectively relieve the pain and improve activities of shoulder joint, and it is superior to EA and TENS therapy.</p>
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Adult , Aged , Female , Humans , Male , Middle Aged , Acupuncture Points , Electroacupuncture , Massage , Periarthritis , Therapeutics , Range of Motion, Articular , Shoulder Joint , Transcutaneous Electric Nerve StimulationABSTRACT
BACKGROUND: Whether bone morphogenetic protein 2 (BMP-2) can be transduced into marrow stromal cells (MSCs) and produce osteogenic effects by viral or non-viral vector remains unclear? OBJECTIVE: To observe the expression of cultured rabbit MSCs transfected with pcDNA3-hBMP2 in vitro. Simultaneously, the MSCs were transfected but not screened and then transplanted into autologous muscle to investigate the osteogenic capability by X-ray. DESIGN, TIME AND SETTING: A controlled observation experiment was performed at the Department of Orthopedics, Liaoning Medical University between November 2004 and April 2005. MATERIALS: Six adult New Zealand rabbits, of either gender, weighing 2.0-3.0 kg, were included for this study. BMP2 antibody was the product of Sanaka Company, USA. pcDNA3-hBMP2 was provided by Professor Pu Qin from the Department of Biochemistry, Fourth Military Medical University of Chinese PLA). Restriction enzyme was purchased from Takara biotechnology (Dalian) CO., LTD., China. METHODS: Super-purified plasmid pcDNA3-hBMP2 was extracted from E. coli. Bone marrow was taken from the adult rabbit femur for harvesting MSCs by density gradient separation. The MSCs were divided into the following 4 groups: Group A, cells were transfected and screened by G418; Group B, cells were transfected by pcDNA3-hBMP2; Group C, cells were transfected by empty vector pcDNA3; Group D, only transfection reagent Fugene 6 was added.MAIN OUTCOME MEASURES: Transient BMP2 expression was analyzed by immunohistochemistry. Expression of osteocalcin and collagen I was examined by immunohistochemistry and in situ hybridization, respectively. Two weeks after transfection, MSCs from the group B were autologously transplanted into the muscle. Four weeks later, X-ray assay was used to observe bone formation.RESULTS: pcDNA3-hBMP2 was successfully transduced into MSCs and transiently expressed BMP2 100%. Four weeks after gene transfection, expression levels of osteocalcin and collagen I were significantly higher in the group A than in the groups C and D. X-ray results demonstrated new bone formation four weeks after MSCs transplanted into the muscle.CONCLUSION: pcDNA3-hBMP2 can safely and efficiently transfect MSCs and induce them to differentiate towards osteoblasts by secreting BMP2.
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<p><b>OBJECTIVE</b>To study the biological properties of human dental pulp cells (HDPC) by cloning and analysis of genes differentially expressed in HDPC in comparison with human gingival fibroblasts (HGF).</p><p><b>METHODS</b>HDPC and HGF were cultured and identified by immunocytochemistry. HPDC and HGF subtractive cDNA library was established by PCR-based modified subtractive hybridization, genes differentially expressed by HPDC were cloned, sequenced and compared to find homogeneous sequence in GenBank by BLAST.</p><p><b>RESULTS</b>Cloning and sequencing analysis indicate 12 genes differentially expressed were obtained, in which two were unknown genes. Among the 10 known genes, 4 were related to signal transduction, 2 were related to trans-membrane transportation (both cell membrane and nuclear membrane), and 2 were related to RNA splicing mechanisms.</p><p><b>CONCLUSION</b>The biological properties of HPDC are determined by the differential expression of some genes and the growth and differentiation of HPDC are associated to the dynamic protein synthesis and secretion activities of the cell.</p>
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Humans , Cloning, Molecular , Cloning, Organism , Dental Pulp , Fibroblasts , Gene Library , Gingiva , Polymerase Chain ReactionABSTRACT
<p><b>OBJECTIVE</b>To observe therapeutic effect of acupuncture on diabetic peripheral neuropathy (DPN) and explore the mechanism.</p><p><b>METHODS</b>Sixty-eight cases of DPN were treated with acupuncture at Jianyu (LI 15), Quchi (LI 11), Waiguan (TE 5) etc. and their blood sugar, blood lipids and hemorrheologic indexes and nerve conductive velocity before and after treatment were determined.</p><p><b>RESULTS</b>After treatment, 43 cases were markedly effective, 20 cases were effective and 5 cases were ineffective, with a total effective rate of 92.6%; the nerve conductive velocity, plasma insulin, C-peptide, opioid peptides increased significantly (P<0.01) and blood viscosity significantly decreased (P<0.01).</p><p><b>CONCLUSION</b>Acupuncture has a definite therapeutic effect on DPN and the increase of nerve conductive velocity is possibly related with the increase of plasma opioid peptides.</p>
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Humans , Acupuncture Therapy , Blood Glucose , Diabetic Neuropathies , LipidsABSTRACT
<p><b>OBJECTIVE</b>In this experiment, genes sensitive to mechanical stretch in osteoblast like cells were cloned through subtractive hybridization technique.</p><p><b>METHODS</b>Two dimensional mechanical stretch with deformation of 12% and frequency of 6 cycles was loaded on human osteoblastic like cell line Saos-2. Complementary deoxyribonucleic acid (cDNA) library of cells was constructed 12 h after loading, acting as tester. cDNA library of cells without loading was constructed, acting as driver. A subtractive cDNA library osteoblastic like cell stimulated with mechanical stretch was constructed through subtractive hybridization technique.</p><p><b>RESULTS</b>Of clones randomly selected from this library, fifteen genes were identified to be the differentially expressed genes. Comparing with the sequences published in GeneBank via Internet, two sequences located in chromosome 9 and 18 respectively were identified to be novel, which were named as stretch sensitive gene 1 and stretch sensitive gene 2.</p><p><b>CONCLUSION</b>It is an efficient approach to clone and study genes relative to mechanical stretch through subtractive hybridization technique.</p>
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Humans , Cell Line , Cloning, Molecular , Gene Expression Profiling , Gene Library , Nucleic Acid Hybridization , Osteoblasts , Physiology , Stress, MechanicalABSTRACT
<p><b>OBJECTIVE</b>To explore reciprocal action between BMP-2 (bone morphogenetic protein-2) and BMP-3 for better understanding of the mechanism of BMP during bone fracture union.</p><p><b>METHODS</b>rhBMP-2 was added into the cultured fibroblasts with the concentration of 1,200 ng/ml. The expression of BMP-3 in fibroblasts was detected by immunohistochemistry. Eukaryotic expression vector pcDNA3-BMP-3 was transfected into the fibroblasts. After the effective expression of BMP-3 was identified, BMP-2 was also detected by immunohistochemistry in BMP-3 expression cells. The fibroblasts transfected with empty vector pcDNA3 were used as the control.</p><p><b>RESULTS</b>Exogenous rhBMP-2 could promote the expression of BMP-3 in fibroblasts. BMP-3 also could be detected in these cells.</p><p><b>CONCLUSIONS</b>BMP-2 and BMP-3 could reciprocally adjust the expression in fibroblasts.</p>
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Bone Morphogenetic Protein 2 , Bone Morphogenetic Protein 3 , Bone Morphogenetic Proteins , Metabolism , Cells, Cultured , Fibroblasts , Metabolism , Fracture Healing , Physiology , Immunohistochemistry , Osteogenesis , Physiology , Transforming Growth Factor betaABSTRACT
Optimization of cultivation condition of recombinant E. coli DH5 alpha/pDH-B2m and the condition suitable for expression of recombinant mature peptide of human bone morphogenetic protein-2 was carried out in 500 mL shaking flasks and then transferred to NBS Bioflo IV, a 20 L DO feed-back fed-batch culture system, to obtain rhBMP-2. The results indicate that keeping dissolved oxygen at 40% and controlling nutrient feeding rate with DO feed back strategy can obtain theoretically 3.59 g recombinant mature peptide of hBMP-2 per liter of broth, the final cell density OD600 reaches 57(22.8 g dry cell weight/L), and the expression of rhBMP-2 amounts to 30% of the total protein in E. coli.