1.Clinic Application of Emergency Angiographic Diagnosis in Massive Gastrointestinal Hemorrhage
Dawei CHEN ; Xiaoxiao JIANG ; Shaoming CHEN
Journal of Medical Research 2006;0(05):-
Objective To evaluate the diagnostic and therapeutic value of emergency Angiography in massive gastrointestinal hemorrhage.Methods 19 patients with massive gastrointestinal hemorrhage,failed by internal medicine or under instable condifion,were undergone emergency angiographic diagnosis with hemostatic or embolismic agent infusion at the same time,and were transfered fo surgical department for emergency surgery on time,then the findings of angiographic diagnosis were compwred with the ones of operation.Results All the patients were performed emergency angiography successfully.and the localigation diagnosis rate is 100%.Conclusion Emergency angiography established orientation goal for the emergency surgery,which is safe even if blood pressure of the patients was uncertain by internal medicine,and hemostasis treatment also makes chance for emergency surgery.
2.Resuscitating needling with scalp acupuncture for 36 cases of intractable hiccup.
Jianmou XIE ; Qinghui CHEN ; Xiaoxiao LIN
Chinese Acupuncture & Moxibustion 2015;35(2):149-150
Acupuncture Therapy
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Adult
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Aged
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Female
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Hiccup
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therapy
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Humans
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Male
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Middle Aged
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Scalp
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Treatment Outcome
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Young Adult
3.Healthcare system in Cuba and its implications for China
Ningshan CHEN ; Xiaoxiao TIAN ; Xiaochuan YANG
Chinese Journal of Health Policy 2015;(9):36-39
As a low-and middle-income country, Cuba has successfully implementedUniversal Health Coverage ( UHC) in the true sense, of which the major health indicators and human development index are relatively high. Moreover, many aspects of Cuba's healthcare system are worth learning from, especially constructing family doctor system, integrating medicine policy into national economic and social development strategies, focusing on drug re-search and development, standardizing high-quality medical education, etc.
4.Effect of lifestyle intervention on indexes of patients with dyslipidemia: a meta-analysis
Qin WU ; Xiaoxiao CHEN ; Yaping DU
Chinese Journal of Geriatrics 2017;36(5):583-588
Objective To evaluate the effect of lifestyle intervention on the indexes of patients with dyslipidemia.Methods CNKI,Wanfang Database,VIP,PubMed,Web of Science,EBSCO,EMbase,the Cochrane Library,Clinical Trials,MEDLINE were retrieved.The search terms included lifestyle intervention,lifestyle,diet,physical activity,dyslipidemia,hypercholesterolemia,lipid,low fat diet,plant sterols,low-glycemic index(GI)diets,mono-unsaturated fatty acids.Articles on randomized controlled trials(RCTs)to study the effect of lifestyle intervention on the indexes of patients with dyslipidemia were screened according to inclusion and exclusion criteria.Meta-analyses were conducted by using RevMan 5.3 software after extracting data.Results 19 articles were internalized,including 2 294 patients(intervention group,n=1,170)and(control group,n =1,124).According to the results of intervention group versus control group,total cholesterol of weighted mean difference(WMD)was (-0.61,95 %CI.-0.84~-0.38,P<0.01),triglyceride of WMD was(-0.28,95 % CI:-0.42~ 0.15),P<0.01),low-density lipoprotein cholesterol of WMD was (-0.45,95 % CI:-0.72 ~ 0.18,P <0.01),(all P<0.01),with significantly lower WMD in intervention group than in control group.The high-density lipoprotein cholesterol of WMD was (-0.05,95 % CI:-0.22 ~ 0.12,P =0.59),the difference was not significant.Conclusions Lifestyle intervention improves serum levels of total cholesterol,triglyceride and low-density lipoprotein cholesterol for dyslipidemia patients,but its effect on high-density lipoprotein cholesterol is not significant.
5.Measurement of ABO blood group antibody levels using renal cortical tubular epithelial cells of cynomolgus monkey
Lu WANG ; Junxiang WANG ; Xiaoxiao WANG ; Song CHEN ; Gang CHEN
Chinese Journal of Organ Transplantation 2014;35(5):300-305
Objective To investigate the possibility of measuring ABO blood group antibody levels using renal cortical tubular epithelial cells (RCTECs) of cynomolgus monkey.Method The primary RCTECs were isolated from cynomolgus monkey kidneys and identified by Western blotting and flow cytometry (FACS).FACS was applied to detect the expression of ABO histo-blood group antigens on RCTECs,the binding of blood group antibodies in human serum to RCTECs,and to compare the difference of measuring ABO blood group antibody levels between using human erythrocytes and RCTECs as target cells.Result The majority of cells derived from the kidney cortex were renal tubular epithelial cells.39.90%-73.80% of RCTECs were found to express the ABO histoblood group antigens with the capability to bind the human blood group antibodies specifically.The expression level of ABO histo-blood group antigen on RCTECs was not influenced by long-term cryopreservation,and the percentage of B antigen positive cells was 39.90% before frozen storage and 39.65% after a 10-month cryopreservation respectively.The normal serum and allergic serum presensitized to synthetic A antigen-keyhole limpet hemocyanin (KLH-A) of cynomolgus monkey were used to compare the abilities of RCTECs and human erythrocytes to detect antibody titers.No agglutination was observed in RCTECs test group.The mean fluorescence intensity (MFI) values of antibody were highest when the dilution fold was lowest (1 ∶ 16) and gradually decreased with increased serum dilution in both serum groups.MFI fell towards baseline value at 1 ∶ 128 dilution in normal serum group while at 1∶8 192 dilution in allergic serum group.Between 1 ∶ 16 and 1∶8 192 dilutions,MFIs of normal serum group were all lower than those of allergic serum.In human red cells test group,obvious agglutination appeared at high concentrations of antibodies,and MFIs reached the peak at 1∶64 dilution in normal serum group and at 1∶32 dilution in allergic serum group,but fluctuated irregularly thereafter.Between 1∶64 and 1∶512 dilutions,MFIs of normal serum group were all higher than those of allergic serum.Data above showed that MFI values in RCTECs group could reflect the levels of blood group antibodies more exactly.Conclusion The RCTECs of cynomolgus monkey express ABO tissue-blood group antigens and would be more suitable to be used to measure ABO blood group antibody levels by FACS.
6.Simultaneous removal of carbon and nitrogen from organic-rich wastewater with Anammox.
Chongjun CHEN ; Weijing ZHU ; Xiaoxiao HUANG ; Weixiang WU
Chinese Journal of Biotechnology 2014;30(12):1835-1844
In order to simultaneously remove carbon and nitrogen from organic-rich wastewater, we used an up-flow anaerobic sludge bed/blanket (UASB) reactor that was started up with anammox with high concentration of carbon and nitrogen by gradually raising the organic loading of influent. We optimized the removal of nitrogen and carbon when the chemical oxygen demand (COD) concentration varied from 172 to 620 mg/L. During the entire experiment, the ammonium and total nitrogen removal efficiency was higher than 85%, while the average COD removal efficiency was 56.6%. The high concentration of organic matter did not restrain the activity of anammox bacteria. Based on polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) and tapping sequencing analyses, the Planctomycete, Proteobacteria, Chloroflexi, Chlorobi bacteria are detected in the UASB reactor, which indicated complex removal pathway of carbon and nitrogen coexisted in the reactor. However, a part of Planctomycete which referred to anammox bacteria could tolerate a high content of organic carbon, and it provided help for high performance of nitrogen removal in UASB reactor.
Ammonia
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chemistry
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Biological Oxygen Demand Analysis
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Bioreactors
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Carbon
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chemistry
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Nitrogen
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chemistry
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Sewage
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Waste Disposal, Fluid
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methods
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Waste Water
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chemistry
7.Enrichment regulation of anammox bacteria in the anammox start-up process.
Chongjun CHEN ; Weijing ZHU ; Xiaoxiao HUANG ; Weixiang WU
Chinese Journal of Biotechnology 2014;30(6):891-900
To study the enrichment regulation of anammox bacteria during the whole start-up process of anammox reaction, two reactors with addition of carries of Spherical Plastic (SP) and Bamboo Charcoal (BC) and one without carrier (CK) were used to start anammox reaction. Then FISH and q-PCR analyses for the growth of all anammox bacteria were conducted during the operational process. The results indicate that the number of anammox bacteria in all reactors increased with time during the whole start-up process, which was consistent with the removal rate of ammonium and nitrite. On day 123 of stable phase, the percent of anammox cells in the sludge of CK, SP and BC accounted for 23.3%, 32.6% and 43.7%, respectively. The number of anammox bacteria 16S rRNA gene copies was (25.64 +/- 2.76) x 10(7), (47.12 +/- 2.76) x 10(7) and (577.99 +/- 27.25) x 10(7) copies g(-1) VSS in the sludge of CK, SP and BC, respectively. Carrier addition could dramatically increase enrichment of anammox bacteria. BC addition significantly increased the anammox bacteria number in the UASB reactor which resulted in the acceleration of the anammox start-up process. In addition, the max specific growth rate and the minimum doubling time were 0.064 d(-1) and 10.8 d in BC reactor. The max specific growth rate of anammox bacteria in BC reactor was 1.78 times and 1.88 times greater than that in CK and SP reactor, respectively. Therefore, the FISH and q-PCR analyses were suitable for determining the enrichment regulation of anammox bacteria during the start-up time, while a bit of differences in results existed between the two analytical methods due to the difference in analysis targets.
Ammonia
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metabolism
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Bacteria
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growth & development
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metabolism
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Bioreactors
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Industrial Microbiology
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Nitrites
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metabolism
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Oxidation-Reduction
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Sewage
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microbiology
8.Improvement of the transfusion system in the hospital thanks to lean production and simulation
Xiaoxiao YANG ; Jiansha LU ; Qiaoying DONG ; Li CHEN
Chinese Journal of Hospital Administration 2013;29(9):655-659
In order to improve the efficiency and quality of medical services,the authors applied the lean production and system simulation into optimizing the transfusion system of a hospital.By means of describing and analyzing the current situation and problems of a transfusion system of the hospital,the paper presented the cause-effect diagram for overlong patient waiting.5W1H and ECRS were adopted to analyze the infusion processes,while Simio was used to simulate the existing infusion system and simulation data so obtained were used to draw a value stream mapping for the system.In line with the ideas of Shojinka and one stream production,nurses deployment and conveyor speed were reconfigured.Based on these ideas,a reform plan is presented and the simulation method is used to verify the outcomes.The study proved that lean production and system simulation can effectively improve the hospital transfusion system,medical efficiency and medical service level.
9.Quantitative and qualitative analysis of common peaks in chemical fingerprint of Yuanhu Zhitong tablet by HPLC-DAD-MS/MS
Daoquan TANG ; Xiaoxiao ZHENG ; Xu CHEN ; Dongzhi YANG ; Qian DU
Journal of Pharmaceutical Analysis 2014;(2):96-106
A quality control (QC) strategy for quantitative and qualitative analysis of “common peaks” in chemical fingerprint was proposed to analyze Yuanhu Zhitong tablet (YZT), using high performance liquid chromatography with diode array detector and tandem mass spectrometry (HPLC-DAD-MS/MS). The chromatographic separation was achieved on an Agilent Eclipse plus C18 column with a gradient elution using a mixture of 0.4‰ ammonium acetate aqueous (pH 6.0 adjusted with glacial acetic acid) and acetonitrile. In chemical fingerprint, 40 peaks were assigned as the “common peaks”. For quantification of “common peaks”, the detection wavelength was set at 254 nm, 270 nm, 280 nm and 345 nm, respectively. The method was validated and good results were obtained to simultaneously determine 10 analytes (protopine, jatrorrhizine, coptisine, palmatine, berberine, xanthotoxin, bergapten, tetrahydropalmatine, imperatorin and isoimperatorin). For qualification of “common peaks”, 33 compounds including 10 quantitative analytes were identified or tentatively characterized using LC-MS/MS. These results demonstrated that the present approach may be a powerful and useful tool to tackle the complex quality issue of YZT.
10.Effects of 1,3-diphenyl-1,3-propanedione on neurotransmitter contents of brain in mice administered with cocaine
Juan CHEN ; Yichao WANG ; Rong CUI ; Xiaoxiao LIU ; Baoxu ZHANG
Journal of Peking University(Health Sciences) 2016;48(3):398-402
Objective:To investigate the possible reversal effects of 1 ,3-diphenyl-1 ,3-propanedione (DPPD)for cocaine-induced content changes of neurotransmitters of brain in mice.Methods:In this study,36 healthy ICR male mice were randomly divided into control group,cocaine group,three DPPD pretreatment groups (200,400,and 800 mg/kg)and DPPD alone group (800 mg/kg).The mice in control group were administered intragastrically with 1 % Tween 80 for 3 d,and the mice in cocaine group were administered intragastrically with 1 % Tween 80 for 2 d before cocaine was injected subcutaneously on the 3rd day.The mice in the three DPPD pretreatment groups were administered intragastrically (DPPD 200,400,and 800 mg/kg)for 3 d before cocaine was injected subcutaneously 30 min after the administration on the 3rd day.The mice in DPPD alone group were administered intragastrically with DPPD at dose of 800 mg/kg for 3 d.The mice were sacrificed 20 minutes after cocaine injection.The contents of dopamine (DA)and 5-hydroxytryptamin (5-HT)in the mice brain were determined by high performance liquid chromatography (HPLC)-fluorescence detector,the contents of glutamic acid (Glu) and γ-aminobutyric acid (GABA)in the mice brain were determined by HPLC-ultraviolet detector,and the neurotransmitter levels were compared between the groups.Results:The results showed that as com-pared with the control group,DA and GABA contents in cocaine group increased significantly (P <0.01 and P <0.05),while Glu content decreased (P <0.05).As compared with cocaine group,the DA levels in the three DPPD pretreatment groups (200,400,and 800 mg/kg)all decreased significantly (P <0.01 ).In DPPD 200 mg/kg pre-administration group,GABA content decreased (P <0.05),and the contents of the four kinds of neurotransmitters had no statistical differences with those of the control group.Conclusion:DPPD may have potential reversal effects of the content changes of neurotransmitters in mice brain induced by cocaine at a lower dose.