1.Characteristics and risk factors for healthcare-associated infection in pa-tients with severe chronic hepatitis B
Xue GU ; Xueming JING ; Ling LI ; Qirong ZHU ; Xiaoping MEI
Chinese Journal of Infection Control 2016;15(7):518-520,523
Objective To investigate the clinical characteristics and risk factors for healthcare-associated infection (HAI)in patients with severe chronic hepatitis B (CHB),and provide theoretical basis for preventing and controlling HAI.Methods Retrospective survey was used to investigate the occurrence of HAI in hospitalized patients with severe CHB in a hospital between January 2012 and January 2015,risk factors for HAI were analyzed. Results A total of 126 patients with severe CHB were investigated,49 patients developed 106 times of HAI, incidence of HAI was 38.89%.The main HAI site was respiratory tract (n=47,44.34%),the next was abdominal cavity (n=34,32.08%).A total of 76 isolates of pathogens were detected,gram-negative bacteria,gram-positive bacteria,and fungi accounted for 53.95%(n =41 ),43.42%(n =33),and 2.63%(n =2)respectively.Risk factors for HAI in patients with severe CHB were patients ’ age ≥ 60 years, length of hospital stay ≥ 30 days, complications,invasive operation,serum albumin < 35 g/L,and white blood cell count (WBC)< 4 × 109/L. Conclusion Incidence of HAI in patients with severe CHB is high,the majority are respiratory tract and abdominal cavity infection,risk factors are old age,long length of hospital stay,invasive operation,hypoalbuminemia,and low WBC count.
2.Prospective study of the Perigee system in the treatment of anterior pelvic organ prolapse
Qiuying LAI ; Xin YANG ; Ye ZHU ; Chen TAN ; Mei LING
Chinese Journal of Obstetrics and Gynecology 2016;(2):103-108
Objective To evaluate the short-term efficacy of Perigee system in the treatment of anterior pelvic organ prolapse. Methods From October 2012 to September 2014, 59 patients with pelvic organ prolapse, pelvic organ prolapse quantitation system (POP-Q) were diagnosed as anterior pelvic organ prolapse Ⅲ degree and above were performed Perigee anterior pelvic floor reconstruction, while some patients combined with sacrospinous ligament suspension, posterior wall repair or posterior pelvic reconstruction surgery for pelvic prolapses. Pelvic floor distress inventory-short form 20 (PFDI-20), pelvic organ prolapse-urinary incontinence sexual questionnaire-12 (PISQ-12) were evaluated, and postoperative POP-Q were used to analyze the changes of the indexes and postoperative complications. Results In 59 patients, the average operation time was (99±29) minutes, the average intraoperative blood loss was (119± 92) ml. The median postoperative follow-up time of 59 cases was 17.5 months (range:8-30 months), median follow-up time of subjuctive symptoms was 21.2 months (range:11-34 months), the total score of PFDI-20 was compared with the preoperative, and the difference was statistically significant (5.6 versus 27.8, P<0.01). It was statistically significant of PISQ-12 score before and after surgery (34±3 versus 36±4, P<0.05). Short-term anatomical cure rate was 98%(58/59), 1 cases (2%, 1/59) in recurrence, 2 cases (3%, 2/59) of erosion. Conclusion This results show that the Perigee system is effective and reliable in the treatment of anterior pelvic organ prolapse.
4.Study of attribution of multicomponent original medicinal materials in gegen qinlian decoction with intestinal permeability.
Mei-Ling ZHU ; Wen-Ning YANG ; Ling DONG ; Hong-Huan DONG ; Cheng-Bo HOU ; Yang LIU
China Journal of Chinese Materia Medica 2014;39(23):4489-4493
The complex level of constructing biopharmaceutics classification system of Chinese materia medica CMMBCS) was the study of traditional Chinese compound, on the premise of insisting that the multicomponent simultaneous determination, when carrying out the study of intestinal permeability, the primary task was to define the source of the components that was absorbed through the intestinal wall, namely, which medicinal material the components belonged to in traditional Chinese compound. The technology of chemical fingerprint and in vitro everted gut sac model were used in this research to make multicomponent an intuitive source attribution which permeated the intestine in the classic formula Gegen Qinlian decoction, and to lay the foundation for the further qualitative and quantitative research of intestinal permeability.
Animals
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Chromatography, High Pressure Liquid
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Drugs, Chinese Herbal
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chemistry
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pharmacokinetics
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Intestines
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metabolism
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Male
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Permeability
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Plants, Medicinal
;
chemistry
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Rats
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Rats, Wistar
5.Construction of biopharmaceutics classification system of Chinese materia medica.
Yang LIU ; Li WEI ; Ling DONG ; Mei-Ling ZHU ; Ming-Min TANG ; Lei ZHANG
China Journal of Chinese Materia Medica 2014;39(23):4479-4483
Based on the characteristics of multicomponent of traditional Chinese medicine and drawing lessons from the concepts, methods and techniques of biopharmaceutics classification system (BCS) in chemical field, this study comes up with the science framework of biopharmaceutics classification system of Chinese materia medica (CMMBCS). Using the different comparison method of multicomponent level and the CMMBCS method of overall traditional Chinese medicine, the study constructs the method process while setting forth academic thoughts and analyzing theory. The basic role of this system is clear to reveal the interaction and the related absorption mechanism of multicomponent in traditional Chinese medicine. It also provides new ideas and methods for improving the quality of Chinese materia medica and the development of new drug research.
Animals
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Biopharmaceutics
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China
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Drugs, Chinese Herbal
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chemistry
;
classification
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pharmacology
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Humans
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Materia Medica
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chemistry
;
classification
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Plants, Medicinal
;
chemistry
;
classification
6.Effect of multicomponent environment on intestinal permeability of puerarin in biopharmaceutics classification system of Chinese materia medica.
Yang LIU ; Gang WANG ; Ling DONG ; Ming-Min TANG ; Mei-Ling ZHU ; Hong-Huant DONG ; Cheng-Bo HOU
China Journal of Chinese Materia Medica 2014;39(23):4505-4508
The evaluation of permeability in biopharmaceutics classification system of Chinese materia medica (CMMBCS) requires multicomponent as a whole in order to conduct research, even in the study of a specific component, should also be put in the multicomponent environment. Based on this principle, the high content components in Gegen Qinlian decoction were used as multicomponent environmental impact factors in the experiment, and the relevant parameters of intestinal permeability about puerarin were measured with using in situ single-pass intestinal perfusion model, to investigate and evaluate the intestinal permeability of puerarin with other high content components. The experimental results showed that different proportions of baicalin, glycyrrhizic acid and berberine had certain influence on intestinal permeability of puerarin, and glycyrrhizic acid could significantly inhibit the intestinal absorption of puerarin, moreover, high concentration of berberine could promote the absorption of puerarin. The research results indicated that the important research ideas of permeability evaluation in biopharmaceutics classification system of Chinese materia medica with fully considering the effects of other ingredients in multicomponent environment.
Animals
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Berberine
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pharmacokinetics
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Biopharmaceutics
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Chromatography, High Pressure Liquid
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Drugs, Chinese Herbal
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pharmacokinetics
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Flavonoids
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pharmacokinetics
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Glycyrrhizic Acid
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pharmacokinetics
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Intestines
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chemistry
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metabolism
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Isoflavones
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pharmacokinetics
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Kinetics
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Male
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Materia Medica
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pharmacokinetics
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Permeability
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Rats
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Rats, Wistar
7.Application of multicomponent dissolution evaluation method of biopharmaceutics classification system of Chinese materia medica in gegen qinlian tablets.
Li WEI ; Guo-Peng WANG ; Ling DONG ; Ming-Min TANG ; Lei ZHANG ; Mei-Ling ZHU ; Yang LIU
China Journal of Chinese Materia Medica 2014;39(23):4494-4498
The study is a paticular embodiment of Chinese patent medicine based on biopharmaceutics classification system of Chinese materia medica (CMMBCS) , focusing on assessment of synchronization issues of dissolution that may affect the timing of the multicomponent absorption. The accumulative dissolution percentages of nine components in Gengen Qinlian tablets in different dissolution solvents and times were determined by HPLC. The dissolution curve was drew and its similarity was evaluated by similarity factors (f2) and cluster method. Results in this experiment showed that the components that peak 7 and peak 8 (baicalin) represented had poor similarity with the reference peak 2 (puerarin). Their similarity factors were both 43 in water dissolution media and 31 and 45 in pH 7.4 dissolution media, respectively. Components that peaks represented had better similarity with the reference peak 2 (puerarin) in other medium. It illustrated that components that peak 3,4,5,6 (berberine) represented had fully synchronous dissolution characteristics with the reference peak 2 (puerarin), components peak 1 and 9 represented had nearly fully synchronous dissolution characteristics with the reference peak 2 (puerarin), while components that peak 7 and 8 (baicalin) represented had no synchronous dissolution characteristics with the reference peak 2 (puerarin).
Biopharmaceutics
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Chromatography, High Pressure Liquid
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Drugs, Chinese Herbal
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chemistry
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classification
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Hydrogen-Ion Concentration
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Solubility
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Tablets
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chemistry
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classification
10.Detection of Beta-lactamases in Multi-resistant Citrobacter Strains
Mei ZHU ; Wei XU ; Tao LI ; Huazhi LING ; Ying HUANG ; Yuanhong XU
Chinese Journal of Nosocomiology 2006;0(09):-
OBJECTIVE To investigate beta-lactamases production in multi-resistant Citrobacter strains isolated from the First Affiliated Hospital of Anhui Medical University.METHODS Standard agar dilution method was used to determine the minimal inhibitory concentration(MIC) of 52 clinically isolated Citrobacter strains,improved three-dimensional tests were performed to detect the ESBLs-producing,AmpC-producing and MBL-producing strains in 31 Citrobacter isolates,then beta-lactamases-encoding genes were amplified by polymerase chain reaction(PCR).RESULTS Thirty one Citrobacter strains were resistant to many beta-lactams antibiotics.Twenty four strains ESBLs-producing,3 AmpC-producing and 2 ESBLs-producing plus AmpC-producing strains have been detected by improved three-dimensional tests,and not found MBL-producing ones.Twenty strains had blaTEM gene and 1 strain had blaSHV gene,8 strains had blaCTX-M-1 gene,15 strains had blaCTX-M-13 gene and 5 strains had blaCIT gene by PCR.CONCLUSIONS Multi-resistant Citrobacter strains produce one or more types of ESBLs and AmpC beta-lactamase,it may be an important reason of resistance to beta-lactams antibiotics.