1.Application of FluvoG connector.
Zhao-jun QIN ; Li-li CHEN ; Gen-sheng XIAO
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2007;42(4):298-299
Adolescent
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Bronchoscopes
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Bronchoscopy
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methods
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Child
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Child, Preschool
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Humans
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Infant
2.Intralesional curettage and wide excision for treatment of giant cell tumors (GCTs) of the distal radius: A Meta-analysis.
Zhen-chun YIN ; Bing-gen LIU ; Qing-jiang PANG ; Xian-jun CHEN ; Xiao YU
China Journal of Orthopaedics and Traumatology 2016;29(1):58-64
OBJECTIVETo search all studies that had been published in the world with regarding to the effectiveness of the extent of intralesional curettage and wide excision for recurrence rate and complications and comparative functional outcomes in patients with giant cell tumours (GCT) of the distal radius and analyze them which were in high quality by means of Meta analysis, in order to give some evidences for the choice of method dealing with giant cell tumors GCT in surgery.
METHODSCochrane central register of controlled trials(Issue 8 2014), PubMed(1970-01-01/2013-01-01), Ovid (1970-01-01/2013- 01-01), Elsevier (1970-01-01/2013-01-01), CNKI (1970-01-01/2013-01-01) were searched. Including intralesional curettage and wide excision were performed to treat giant cell tumors (GCTs) of the distal radius in the literatures, selecting on meet eligibility in the standard literatures underwent strict quality assessment. The Meta-analysis was performed with software RevMan5.0 from the Cochrane collaboration. Additionally, the analysis checked the heterogeneity of data. The effectiveness of the extent of intralesional curettage and wide excision for recurrence rate and complication in patients with giant cell tumours of the distal radius were evaluated and Odds Ratio was calculated.
RESULTSSeven relevant articles were identified involving total 163 cases. Among them, 92 cases were intralesional curettage (PMMA, n = 54; bone graft, n = 33; no PMMA or bone grafts, n = 5) and 71 cases were wide excision. The patients in the intralesional curettage group had a higher recurrence rate [OR = 3.87, 95% CI (1.42, 10.53)],especially for Campanacci grade 3 GCTs [OR = 10.12, 95% CI (1.57, 65.27)], yet fewer major complications [OR = 0.13, 95% CI (0.04, 0.40)] than the wide excision group. The use of PMMA versus bone graft did not affect the recur- rence rate [OR = 0.96, 95% CI (0.26, 3.56)]. By selecting the system evaluation of MSTS, the VAS and dynamometer, the result showed that the intralesional curettage group was equivalent or preferable to wide excision in terms of function rehabilitation.
CONCLUSIONBased on data obtained from the limited number of studies available, intralesional curettage appears to be moreappropriate for the treatment of local lesions (Grade 1 and 2) than Grade 3 GCTs of the distal radius. Moreover, PMMA was not additionally effective as an adjuvant, the intralesional curettage group was found to be equivalent or preferable to wide excision in terms of function rehabilitation.
Bone Neoplasms ; surgery ; Curettage ; methods ; Giant Cell Tumor of Bone ; surgery ; Humans ; Radius ; surgery
3.Screening of ?-Rhamnosidase High-yield Strain from Aspergillus niger
Hua-Gen CHEN ; Hui NI ; Li-Jun LI ; An-Feng XIAO ; Wen-Jin SU ; Hui-Nong CAI ;
Microbiology 2008;0(07):-
In this study, plate transparent circle by Davis method was introduce firstly screening ?-Rhamnosidase high-yield strain. The spore-sprouted Aspergillus niger 8-hour were mutagenized by ethyl methane sulphonate and pre-screened via transparent circle. 11% mutants yield 40% higher of ?-rhamnosidase than the original strain. A high-yield strain, T-226 with the highest ?-rhamnosidase activity of 373.4 U/mL was finally selected from these potential high-yield mutants after rescreened by shake flask fermentation twice. When the T-226 strain was fermented in 5 L bioreactor, the enzyme activity could reach to 631.9 U/mL after 84 h. Thus, the established screening method is highly efficient to isolate ?-rhamnosidase high-yield mutant of A. niger.
4.Study of the efficacy of a monoclonal antibody biotin-avidin system for the diagnosis of schistosomiasis japonica.
Hong-gen CHEN ; Xiao-jun ZENG ; Jun GE ; Wei-sheng JIANG ; Mihoko KIKUCHI ; Kenji HIRAYAMA
Chinese Journal of Preventive Medicine 2006;40(4):244-247
OBJECTIVETo explore the diagnostic efficiency of circulating antigen using the TM5.28 mAB-biotin-avidin system for the detection of schistosomiasis japonica.
METHODSA mAb-biotin-avidin system was set up using a TM5.28 mAB which was prepared against a gut associated antigen of Schistosoma japonicum. Detection was performed on the sera from 50 acute schistosomiasis patients, 224 chronic patients, 49 advanced patients and 46 schistosomiasis patients who were followed up at 6 months and 12 months post treatment. In addition, 19 cases of clonorchiasis, 31 cases of paragonimiasis, 23 cases of hepatitis B and 100 healthy individuals were also included.
RESULTSThe system showed sensitivity of 83.1% and specificity of 94.0% when applied to detect chronic schistosomiasis and healthy persons respectively, while 94.0% to acute schistosomiasis. The Youden's index of the system was 0.771. The rate of cross-reaction to paragonimiasis, clonorchiasis and hepatitis B was 12.9%, 15.8% and 13.0% respectively. The rates of negative turning were 43.9% and 62.1% respectively in chronic schistosomiasis at the 6 month and 12 month intervals after treatment. Geometric mean of the OD values also decreased from 0.172 before treatment to 0.081 at 6 months and 0.068 at 12 months after treatment with a reduction rate of 60.30%. The detection rate in the heavy infected population reached a maximum of 90.0%. This was similar in moderate and light infected populations, i.e., 83.9% and 82.1%, respectively.
CONCLUSIONThe TM5.28 mAb-biotin-avidin system showed a relatively high efficiency in the diagnosis of schistosomiasis and a high negative turning rate after treatment. It is, therefore, a valuable tool for the estimation of prevalence in endemic populations, as well as individual diagnosis and for assessing the effect of chemotherapy.
Animals ; Antibodies, Helminth ; immunology ; Antibodies, Monoclonal ; immunology ; Avidin ; immunology ; Biotin ; immunology ; Cell Fusion ; Humans ; Mice ; Mice, Inbred BALB C ; Schistosomiasis japonica ; diagnosis ; immunology ; Serologic Tests
5.An investigation on job satisfaction and turnover intention among staff in primary health institutions in Jingning county,Zhejiang province
Chen WU ; Xiao-Gen CHEN ; Fu-Dong LI ; Jun-Fen LIN
Journal of Preventive Medicine 2015;(12):1217-1220,1225
Objective To learn the present situation and influencing factors of job satisfaction and turnover intention among staff in primary health institutions in Jingning county,Zhejiang province. Methods Questionnaire investigation was conducted targeted to primary health workers in Jingning County. One hundred and ninety nine questionnaires were included in the analysis. One - way ANOVA and multivariable logistic regression were applied to analyze relative indicators. Results The mean score of general job satisfaction among primary health workers was 76. 39 ± 7. 28 in Jingning County. The two items with the lowest two scores of job satisfaction were compensation(2. 81 ± 0. 97)and advancement(3. 38 ± 0. 86),and the highest two were co - worker(4. 23 ± 0. 49)and moral value(4. 15 ± 0. 58). The percentage of turnover intention was 6. 75% in permanent workers and 36. 11% in temporary contract workers. Multivariable logistic regression showed that compensation was the main influencing factor associated with turnover intention(OR = 0. 33,95% CI:0. 19 -0. 58). Conclusion The primary health workers Jingning County are basically satisfied with their job,and low income and difficult promotion are the main problems at the moment. Increasing financial input,reforming income distribution mechanism and improving promotion channels are necessary to develop human resource in primary health institutions and to insure successful implementation of health care reform.
6.Identification of Chinese medicine material of Fritillaria by themogravimetric/diffrential thermal analysis.
Shu-Jun WANG ; Wen-Yuan GAO ; Hai-Xia CHEN ; Jing-Lin YU ; Pei-Gen XIAO
China Journal of Chinese Materia Medica 2007;32(4):296-299
OBJECTIVETo provide a quick and simple method to identify different Chinese medicine material of Fritillaria.
METHODThe thermograms and differential thermograms of nine Fritillaria powders were obtained by thermal analyzer.
RESULTBy analyzing the thermograms of nine Fritillaria powders, we concluded that the thermal stability of nine Fritillaria powders was much different each other due to the different geography origin. The thermal stability of F. hupehensis was highest among nine Fritillaria, while F. ussurensis was the lowest. The different Fritillaria showed their own DTA spectra respectively.
CONCLUSIONAccording to the differences in the thermal properties of nine Fritillaria powders, the origins of Fritillaria could be easily identfied.
Calorimetry, Differential Scanning ; methods ; China ; Climate ; Ecosystem ; Fritillaria ; chemistry ; classification ; growth & development ; Hot Temperature ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; classification ; growth & development ; Powders
7.Effects of daidzein on sperm quality, testis gain and testosterone in mice.
Zhao-Yu HAN ; Gen-Lin WANG ; Wen CHEN ; Li-Jun ZHANG
National Journal of Andrology 2003;9(8):566-568
OBJECTIVETo evaluate the effects of daidzein on sperm quality of male mice.
METHODSThree different doses of daidzein were supplemented to pubertal male mice for 21 days(5 mg/kg, 100 mg/kg, 1,000 mg/kg ration). The viability of sperm was determined by eosin-Y, the acrosome was observed by Wright-Giemsa staining, and the testosterone was measured by radioimmunoassay.
RESULTSDaidzein at the dose of 5 mg/kg ration significantly increased serum testosterone levels (P < 0.01), prompted testis gain (P < 0.05), and improved spermatozoa quality. Daidzein at dose of 1,000 mg/kg ration could inhibit the secretion of serum testosterone (P < 0.01), without significant variation in spermatozoa quality. Daidzein at dose of 100 mg/kg ration did not significantly affect sperm quality and other index.
CONCLUSIONSDaidzein can affect sperm quality and in dosage-dependant ways.
Animals ; Cell Survival ; drug effects ; Dose-Response Relationship, Drug ; Isoflavones ; pharmacology ; Male ; Mice ; Mice, Inbred Strains ; Organ Size ; drug effects ; Phytoestrogens ; pharmacology ; Spermatozoa ; cytology ; drug effects ; Testis ; drug effects ; Testosterone ; blood
8.Screening for resistance gene candidate from a genomic TAC library of Triticum aestivum-Haynaldia villosa translocation line 6VS/6AL by pooled PCR.
Gen-Ji QIN ; Pei-Du CHEN ; Yao-Guang LIU ; Yu-Da FANG ; Da-Jun LIU
Chinese Journal of Biotechnology 2002;18(3):313-317
A pair of degenerate primers were designed based on NBS (nucleotide binding site, NBS) domain of resistance(R) gene and used to perform PCR with cDNA from the translocation line 6VS/6AL of Triticum aestivum-Haynaldia villosa. A clone (N7) characterized with NBS was obtained by sequencing analysis. Two specific primers were designed from the N7 sequence and used to screen a genomic TAC (transformation-competent artificial chromosome, TAC) library of 6VS/6AL consisting of ca. 2 x 10(6) clones. The library was stored as clone pools in twenty-two 96-well plates, each well containing approximately 1000 TAC clones. TAC plasmids were prepared from all the 2112 pools. Using a pooled PCR screening procedure, a positive TAC clone having a 40 kb insert was obtained. The positive clone was confirmed by Southern hybridization with the NBS fragment as a probe. The results indicate that the pooled PCR method is effective for screening of genomic libraries having large number of clones.
Amino Acid Sequence
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Base Sequence
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Binding Sites
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Blotting, Southern
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Chromosomes, Artificial
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Genomic Library
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Molecular Sequence Data
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Polymerase Chain Reaction
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methods
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Translocation, Genetic
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Triticum
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genetics
9.A taxonomic study on the original plant of radix astragali.
Dan QIAN ; Min CHEN ; Qing-Jun YUAN ; Guang-Hong CUI ; Lu-Qi HUANG ; Pei-Gen XIAO
Acta Pharmaceutica Sinica 2009;44(12):1429-1433
There are dispute about the status of taxonomy among Astragalus membranaceus (Fisch.) Bge, A. membranaceus (Fisch.) Bge. var. mongholicus (Bge.) Hsiao. and A. pallidipurpureus stat. nov. The varieties and taxa of the complex are still in need of revision. With molecular biology study used trnH-psbA intergenic region, the taxonomic revision of Radix Astragali has been made. A. pallidipurpureus stat. nov is suggested as a new species.
Astragalus Plant
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classification
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genetics
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Astragalus membranaceus
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classification
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genetics
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Chloroplasts
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genetics
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DNA, Plant
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genetics
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Haplotypes
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Phylogeny
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Plant Roots
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genetics
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Plants, Medicinal
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classification
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genetics
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Species Specificity
10.Effect of warm acupuncture on pathological morphology and pain-induced inflammatory mediators in rats with myofascial pain trigger.
Gan-Jun WEN ; Hong LIU ; Jian CHEN ; Shi-Fei ZHANG ; Yi-Kai LI ; Shu-Gen ZHOU
China Journal of Orthopaedics and Traumatology 2019;32(3):260-264
OBJECTIVE:
Based on the establishment of a rat model of trigger point, this study was to intervene with warm acupuncture, and to evaluate the effect on pathological morphology and pain-induced inflammation of the rat model by microscopic pathology and microdialysis.
METHODS:
Sixty-four SD rats were randomly divided into group A (blank control), group B (model control) and group C (model and intervention control). Groups A and B were divided into 3 groups (A0, A1, A2 and B0, B1, B2), the group C was divided into 2 groups (C1 and C2). The MTrPs model was established in both groups B and C, warm acupuncture intervention were given to the C1 group for 7 days and the C2 group for 15 days. Rats were sacrificed in batches. MTrPs were locally sampled and stained with hematoxylin-eosin after the preparation. The pathological changes were observed under light microscopy. The iocal interleukin-1β and prostaglandin E2 were detected by microdialysis technique.
RESULTS:
Microscopically, the muscle fibers of the model were arranged disorderly, broken, twisted, local fibrosis, contracture thickening and so on; macrophage and other inflammatory cell invasion in local area and a large area of adhesion occurred on the contracture nodule, the pathological state of local muscle fibers was significantly improved after warm needle intervention, local microvascular formation and maturation, local muscle fiber repair. After successful modeling, the amount of interleukin-1β and prostaglandin E2 in group B0 was significantly higher than that in group A0 before warm needle intervention (<0.01). After warming intervention for 7 days, there was no significant difference in the amount of interleukin-1β and prostaglandin E2 between group C1 and group B1 (>0.05). Group C1 and B1 were significantly higher than group A1 (<0.01); warm needle intervention for 15 days, the amount of interleukin-1β and prostaglandin E2 in group C2 were lower than those in group B2 (<0.05), but those in group C2 and B2 were significantly higher than group A2 (<0.01), and the amount of interleukin-1β and prostaglandin E2 in group C2 was lower than group C1 (<0.05).
CONCLUSIONS
The modeling method of exercise combined hitting used in this study was proved to be effective by histopathology; warm acupuncture can improve the pathological and inflammatory state of local muscle fiber in myofascial pain trigger of rat, promote local microvascular formation and maturation, and help the trigger point local muscle fiber repair.
Acupuncture Therapy
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Animals
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Inflammation Mediators
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Myofascial Pain Syndromes
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Rats
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Rats, Sprague-Dawley
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Trigger Points