1.Distribution and antimicrobial resistance of pathogenic bacteria causing urinary tract infection
Ya LI ; Wen ZHANG ; Jingyong SUN ; Yuxing NI ; Nan CHEN
Chinese Journal of Nephrology 2010;26(5):325-329
Objective To analyze the distribution and antimicrobial resistance of pathogenic bacteria in urinary tract infection (UTI)so as to provide evidence for appropriate selection of antimicrobial agents in clinical practice. Methods From January 2001 to December 2008 in Shanghai Ruijin Hospital,4683 strains of pathogenic bacteria isolated from urine samples were detected by ATB system;drug susceptibility test was performed with disk diffusion method and pathogenic bacteria distribution and drug resistance was analyzed with WHO NET 5.3 software. Results Among 4683 strains of pathogenic bacteria,most was gramnegative bacilli,accounting for about 77.8%,of which predominant strain was Escherichia coli (68.7%,3217/4683).The predominant strain of gram-positive bacteria was Enterococcus faecalis,accounting for 10.0%(468/4683).Escherichia coli showed hish resistance rotes to ampicillin,piperacillin and compound snlfamethoxazole(SMZ-TMP),which were 76.6%,61.7%and 57.4%respectively,while a low resistance to imipenem,cefoperazone-sulbactam,piperacillin-tazobactam,Enterococcus faecalis showed high resistance rates to erythromycin,gentamicin and levofloxacin,which were 65.8%,43.2%and 31.1%respectively,and were most susceptive to vancomycin and teicoplanin, both with resistance rates of 0. The susceptibility rate of Enterobacteriaceae to imipenem was 100%. From 2006 to 2008, the detection rate of extend-spectrum β-lactamases ESBLs -producing Escherichia coil in outpatient increased year by year, from 28.7% to 43.3% (P<0.05), whereas no significant change was found in inpatients. The detection rate of (ESBLs)-producing Escherichia coil in inpatients was significantly higher than that in outpatients (P<0.05).The detection rate of ESBLs-producing Escherichia coil was 23.6%. The antimicrobial resistance rate in elderly patients was significantly higher than that in overall antimicrobial resistance rote (P<0.05). Conclusions The predominant bacteria of UTI are still gram-negative bacteria, main of which is Escherichia col. Bacteria are resistant to a variety of antibiotics. Approximate selection of antibiotics in clinical practice should be made on the basis of susceptibility test results.
2.Effect of vigorous walk on elderly type 2 diabetes.
Hui-min ZHOU ; Bo-ya LI ; Huan ZHU ; Wo NI
Chinese Journal of Applied Physiology 2015;31(3):243-248
3.EXPERIMENTAL STUDY ON OSSEOINTEGRATION AND BONE FORMATION OF DENTAL IMPLANTS IN RATS WITH OSTEOPOROSIS
Ya′Nan LI ; Hongchen LIU ; Ziyan NI ; Al ET ;
Medical Journal of Chinese People's Liberation Army 2001;0(07):-
The aim of the study was to observe osseointegration of dental implants in osteoporotic rats. Rats were randomly divided into groups A(SHAM) and B(OVX), and pure titanium screws were implanted in the distal half of the right femurs. 1 5 and 3 months after implantation, half of the rats in each group were sacrificed and right femurs were observed by X ray photography, scan electron microscopy as well as light microscopy. The results showed that 1.5 and 3 months after implantation, the osseointegration index (OI) of group A was higher than that of group B. But the OI of each group was almost the same at different intervals. 1 5 months after implantation, the amount of new bone formation in group A was more abundant than that in group B, and it increased in group A but decreased in group B 3 months after implantation.The results confirmed that with higher BMD osseointegration was better. Osteoporotic changes could decrease OI and the amount of new bone formation at implant bone interface in rats. Osseointegration would not improve without outside factors.
4.The Organization of the Curriculum Design of Fermemtation Engineering-Equipment and Its Teaching Importance to Bioengineering Bajor
Ya-Dong LI ; Hong NI ; Gui-Ming ZHANG ;
Microbiology 1992;0(03):-
This paper mainly discusses the purpose , content , organization of the curriculum design of fermentation engineering and equipment and the teching importance to bioengineering major.
5.A comparison study of the clinical features between Chinese and Indian primary congenital glaucoma patients
Mao, LI ; Xiao-Ming, CHEN ; Ya-Li, LIU ; Ru-Gang, PAN ; Dong-Jing, LIU ; Ni, LI
International Eye Science 2006;6(2):282-290
· AIM: To summarize the clinical features of Chinese primary congenital glaucoma and to investigate the discrepancies of the clinical features between the Chinese and Indian patients.congenital glaucoma patients were reviewed. The clinical features were summarized as several quantifiable clinical parameters and the severity of the disease was evaluated. Both the quantified clinical features and severity were statistically compared with those of the Indian patients, which were cited from the previous published articles.included in the study. In Chinese patients, sex ratio (male to female )was about 2:1, family history was presented in 3 patients (7.5%) and consanguinity was found in one patient (2.5%). The main symptoms and signs observed in Chinese patients spanned a wide spectrum of manifestations. The most frequent signs noted on the initial examination were enlarged eyeball (42.5%) and decreased visual acuity (35.0%). Compared with Indian patients, Chinese patients had a later onset, a delayed diagnosis, more severe corneal changes and more severe optic nerve damages (P<0.01). The combined tabeculectomy and trabeculotomy operation was preferred by both Chinese and Indian doctors whereas a higher proportion of Indian patients received the combined operation (P<0.01). The proportions of the severity grade were different between Chinese and Indian patients. Most Chinese patients were in the severe grade while most Indian patients were in the very severe grade (P<0.01).patients were sporadic and non-consanguineous.Compared with Indian patients, Chinese patients had a relative later onset, a delayed diagnosis and treatment.More attempts are needed in Chinese PCG prevention and treatment.
6.Establishment and evaluation of methods for determinating cystic fibrosis transmembrane conductance regulator quantitatively.
Feng QIU ; Jie ZENG ; Kun LI ; Ai-jun CHEN ; Wan-xiang XU ; Ya NI
Chinese Journal of Applied Physiology 2015;31(2):154-157
OBJECTIVETo establish and evaluate a BA-ELISA method for the quantitative detection of cystic fibrosis transmembrane conductance regulator (CFTR) protein.
METHODSWe deliberately selected three tables of CFTR and made the synthetic peptide be expressed in E. coli, then used the antigen to immunize rabbits to obtain the anti-CFTR polyclonal serum. After that, 96 well plates were coated with the purified antibody against CFTR. The antigen CFTR which was extracted from human sperm was detected by anti-CFTR antibody labeled with biotin, horseradish peroxidase conjugated avidin, and the substrate. The concentrations of two kinds of antibodies and the experiment parameters were optimized. Thereby, the double antibody sandwich BA-ELISA method for the quantitative detection of CFTR protein was established. Furthermore, the reproducibility, specificity and so on were evaluated by clinical specimens of sperm.
RESULTSThe optimal concentration of coated anti-CFTR IgG was 4 µg/ml, while the biotin labeled anti-CFTR IgG was 10 µg/ml; the optimal blocking buffer was 1% BSA-PBST, the optimal time of the reaction between antigen and antibody was 60 min, the optimal chromogenic time was 15 min, the intra-assay and inter-assay coefficient were 2.16%-9.23% and 2.29%-11.71% respectively; The lowest detectable limit was 0.15 ng/ml; the standard curve had a good linear correlation of R2 = 0.962.
CONCLUSIONThe BA-ELISA method for the quantitative detection of CTFR protein is successfully established, and it is demonstrated that the method has strong specificity, high sensitivity and good reproducibility. It provides the basis and evidence of the further application of the method.
Animals ; Antibodies ; Cystic Fibrosis Transmembrane Conductance Regulator ; analysis ; Enzyme-Linked Immunosorbent Assay ; methods ; Escherichia coli ; Humans ; Peptides ; Rabbits ; Reproducibility of Results ; Sensitivity and Specificity
7.Effects of Tansvaginal Aspiration of Hydrosalpinx Combined Auricular Point Sticking on IVF-ET Outcomes.
Jin-xia AN ; Ya-li NI ; Xiao-ling LIU ; Xi-hong GAO ; Yan WANG
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(6):682-685
OBJECTIVETo explore effective pretreated methods for hydrosalpinx before frozen embryo transfer (FET).
METHODSA randomized controlled study was performed on 229 FET cycles of hydrosalpinx patients. They were assigned to two groups by random digit table, Group A (94 cases), Group B (89 cases), and Group C (46 cases). Patients in Group A received transvaginal aspiration of hydrosalpinx combined with auricular point sticking. Those in Group B received transvaginal aspiration of hydrosalpinx group. Those in Group C received no transvaginal aspiration of hydrosalpinx. Pregnancy outcomes of FET, endometrial and subendometrial blood flow distribution on the embryo transfer day were compared among the three groups.
RESULTSThere was no statistical difference in the endometrial thickness on FET day, the number of transfer embryos, the number of transferred good quality embryos among the three groups (P > 0.05). The clinical pregnancy rate and the embryo implantation rate were significantly higher in Group A than in Group C (P < 0.05), and the clinical pregnancy rate was significantly higher in Group A than in Group B (P < 0.05). The early abortion rate and the transfer cycle cancel rate were significantly lower in Group A than in Group C (P < 0.05). Type A endometrial and subendometrial blood flow distribution was dominant in Group A, which was significantly higher in Group A than the rest two groups (P < 0.05). Type A distribution rate was also significantly higher in Group B than in Group C (P < 0.05).
CONCLUSIONTransvaginal aspiration of hydrosalpinx combined with auricular point sticking before FET could improve the endometrial receptivity and improve outcomes of IVF.
Embryo Implantation ; Embryo Transfer ; methods ; Female ; Fertilization in Vitro ; methods ; Humans ; Pregnancy ; Pregnancy Outcome ; Pregnancy Rate
8.Clinical study on the association of ocular dominance with accommodation in myopia adult
Pei-ke, HU ; Zhao-chun, LI ; Ya-bo, YANG ; Hai-long, NI
Chinese Journal of Experimental Ophthalmology 2012;(11):1026-1029
Background Dominant eye is one of the functional asymmetric organ,and the dfference between dominant eye and undominant eye is a researching hotspot.But the study about accommodation in adult myopia is less.Objective This study was to determine the association between ocular dominances and accommodative factors in the subjects with adult myopia.Methods This study used prospective descriptive research method.Thirty-five subjects aged from 18 to 35 years with the myopia ranged from-2.00 D to-10.00 D and anisometropia less than 1.5 D,BCVA≥ 1.0 were recruited consecutively in this study.Ocular dominance was determined using the hole-inthe-card test and thumb test.Refractive error was measured with objective and subjective optometry,and amplitude of accommodation was measured by push-up test.Fusion cross cylinder(FCC) was used to measure the accommodative lag,and flipper test was applied to determine the accommodative facility.Oral informed consent was obtained from each subject before any relevant examination.Results No significant differences were found in the amplitude of accommodation (D),accommodative facility (cpm) and accommodative lag (D) between the dominant eye and undominant eye (accommodative amplitude:9.69 D±2.30 D vs.9.60 D±2.37 D,P =0.294 ;accommodative facility: 11.08 D±4.20 D vs.10.63 D± 4.60 D,P=0.260;accommodative lag:P=0.141).In the patients with the right eyes as dominance eyes,the accommodative amplitude of both eyes were (9.48±2.29) cpm and (9.33 ± 2.49) cpm,and accommodative facility were (10.50 ± 4.70) cpm and (9.99 ± 4.90) cpm.There were no significant differences between the right and left eyes in the accommodative amplitude,accommodative facility and accommodative lag (P =0.319,0.116,0.590).In the patients with the left eyes as dominant eyes,the accommodative amplitude of both eyes were (9.91±2.35)D and (9.88±2.26) D,and accommodative facility were (10.70±3.77)cpm and (11.25 ±4.27) cpm.No significant differences were seen between the right eyes and left eyes in the accommodative amplitude,accommodative facility and accommodative lag (P =0.749,0.295,0.238).Conclusions The amplitude of accommodation of the dominant eye is not significantly enhanced,and less accommodative lag and better accommodative facility also are found in the demonstrate eye in myopia adults with low anisometropia.
9.The Preparation of the Recombinant Fusion Protein Human Retinal Pigment Epithelium-derived Factor and the Analysis of Its Angiogenesis Activity
Ya-Ni WANG ; Xian-Ning LIU ; Juan-Li ZHU ; Na AN ; Xiu-Ping ZHU ;
China Biotechnology 2006;0(12):-
Objective:The recombinant human retinal pigment epithelium-derived factor(PEDF)protein to be obtained and the angiogenesis of the rPEDF to be identified.Methods: PEDF gene gene was amplified by PCR and cloned into pET32a,rPEDF protein was expressed in E.coli BL21 and confirmed by SDS-PAGE and Western blot.The rPEDF was purified by Ni-NTA on denature condition.The concentration of the rPEDF was determined by Bradford method.The angiogenesis of the rPEDF was determined by chick chorioallantoic membrane(CAM) method.Results: The expression plasmid pET32a-PEDF was constructed successfully.The rPEDF was expressed with stable efficiency in E.coli BL21.The results of the CAM experiment showed that the rPEDF had notable angiogenesis effect in the concentration 0.4、0.04 ng/ml,but had no effect in 4 ng/ml.Conclusion:The PEDF gene was cloned and expressed efficiently,the angiogenesis of the rPEDF to be identified and the activity was worked in certain range.The results can facilitate studying its function and spreading its application.
10. Application of iliac fascia block composite laryngeal mask anesthesia in elderly patients udergoing hip arthroplasty
Academic Journal of Second Military Medical University 2017;38(4):452-457
Objective To compare the advantages and disadvantages of iliac fascia block (blocking femoral nerve, lateral femoral cutaneous nerve and obturator nerve simultaneously) composite laryngeal mask anesthesia with spinal anesthesia in elderly patients (≥80 years old) undergoing artificial femoral head replacement (not bone cement type), so as to explore the individualized anesthesia scheme for orthopedic elderly patients. Methods We retrospectively analyzed the anesthesia-related data of 98 elderly patients (≥80 years old) undergoing artificial femoral head replacement, including 44 cases with iliac fascia block composite laryngeal mask anesthesia in group G and 54 cases with spinal anesthesia in group S, with the American Association of Anesthesiologists (ASA) grade being II-IV. Mean arterial pressure (MAP) and heart rate (HR) of patients were recorded before anesthesia induction, and after anesthesia induction for 5, 10, 15, 20, and 30 min. Visual Analogue Scale (VAS) score was recorded before surgery, immediately after surgery, and at 6 h, 24 h after surgery. The number of methamphetamine used, complications, incidence of side effects, length of hospital stay, and sleep quality before and 1 day after operation were recorded, and surgeon's satisfaction with the anesthesia scheme was investigated. Results There were no significant differences in age, gender or body mass index of patients between the two groups. The number of ASA patients in the group G was significantly larger than that in the group S (P<0.05). VAS score in the group G was significantly lower than that in the group S (P<0.01) at 6 h and 24 h after surgery, and the analgesic effect was satisfactory. There was no significant difference in hemodynamics between the two groups before and after anesthesia induction. The number of methamphetamine used in the group G was significantly higher than that in the group S (P<0.01). Incidence of postoperative urinary retention in the group S was significantly higher than that in the group G (P<0.05). There was no significant difference in length of hospital stay after surgery between the two groups (P>0.05). Conclusion Individualized anesthesia scheme for elderly patients undergoing hip arthroplasty should be considered. In selected patients, iliac fascia blockade composite laryngeal mask anesthesia has longer time of postoperative analgesia, and is safer and more feasible compared with spinal anesthesia.