1.Research Progress of the Mechanism of Combined Acupuncture-medication Anesthesia in Protecting Internal Organs During Perioperative Period of Pneumonectomy
Shanghai Journal of Acupuncture and Moxibustion 2016;35(8):899-901
Combined acupuncture-medication anesthesia refers to an anesthesia method by combining acupuncture and small dose of anesthetics, i.e. acupuncture plus local anesthesia, acupuncture plus epidural anesthesia, acupuncture plus general anesthesia, and so on, used in cardiac, chest, skull, throat, abdominal, and urinary operations. Clinical studies show that the combined acupuncture-medication anesthesia has integrated the advantage of acupuncture in regulating the function of internal organs and the advantage of drugs insedation, thus producing a better protective effect on important organs than dry drug anesthesia during and after operation. This article summarized the latest research progress of the combined acupuncture-medication anesthesia in protecting organs duringthe perioperative period of pneumonectomy, pointed out the research frontiers of the application of this anesthesia method in pneumonectomy, and was of valuable reference for the clinical study in the future.
2.Risk factor analysis of 167 patients with high myopia
Ya, MO ; Ming-Fang, WANG ; Lü-Lü, ZHOU
International Eye Science 2010;10(2):218-221
AIM:To analyse the risk factors of age, sex, course, best corrected visual acuity(BCVA),diopter and fundus features of high myopes with progressive high myopia. METHODS: A total of 167 patients with high myopes were categorized into four groups: group 1,age of 29 years or younger; group 2,between the age of 30 to 49 years; group 3,between the age of 50 to 69 years and group 4,age of 70 years or older. The refractive errors of all patients were measured without cycloplegia with an autorefractometer. Data of the spherical equivalent(SE) of the refractive errors in diopters (D)and fundus examed by direct ophthalmoscope were used in statistical analyses.RESULTS: The number of female was statistically larger than that of male(P<0.01),also the disease course was correlated to the age. The visual acuity of high myopes significantly decreased as they grew older including the higher incidence of lacquer cracker, submacular hemorrhage, Fuchs spots, chorioretinal atrophy . CONCLUSION: Female maybe a risk factor of high myopia, advanced age is an important factor of visual acuity decrease. High myopes ought to be treated early to delay the progress of myopia and development of macular degeneration.
3.Diagnostic Value of L-homocysteic Acid and Lysophosphatidylcholine as Markers of Ovarian Cancer
Lu ZHOU ; Jieqiang Lü ; Le WU
Journal of Medical Research 2015;44(4):114-116,119
Objective To study whether L-cysteine and lysolecithin (16:0) could be as a serum markers in the detection of OVC for overcoming the OVC defects of early detection .Methods Totally 142 cases of healthy check -up patients ( control group ) 100 cases from First Affiliated Hospital of Wenzhou Medical University in January 2012 to January 2014 were extracted patient specimens .These pa-tient specimens were used to detect by MALDI -TOF-MS mass spectrometer and obtain the peak m/z by the method of principal compo-nent analysis for screening expression difference between the two groups in the metabolites and the correlation between metabolites and pathological grade.Results The most difference substance between two groups were 184.05 and 496.30m/z which identified as LPC (16:0) and HCA;On HCA average level and detection rate , OVC group was significantly higher than control (P<0.01); On 184.05 and 496.30m/z peak area, control group was significantly higher than OVC group (P<0.01);HCA positively was correlated with patho-logic grade (P<0.05);184.05 and 496.30 m/z peak area were negative correlation with pathologic grade (P<0.05).Conclusion L-cysteine and lysolecithin (16:0) mechanism in the pathogenesis of OVC is unclear , but it can be used for the detection of serum OVC markers.
4.Determining the start codons of aadA2 gene in class 1 integron
Quhao WEI ; Xiaofei JIANG ; Min LI ; Qingfeng HU ; Huoxiang Lü ; Yonglie ZHOU ; Yuan Lü
Chinese Journal of Microbiology and Immunology 2011;31(12):1063-1067
ObjectiveTo determine whether aadA2 gene can be translated from the ATG triplet,which there was no plausible ribosome binding site preceding it,and synthetized a functional protein in class 1 integron.MethodsSite-specific mutagenesis was used to construct aadA2 gene cassette with different start codons,together with their upstreamed promoters of variable regions were cloned into plasmid pACYC184 respective.The constructed plasmids were then transfored into Escherichia coli JM109,Western blot was used to detect the translation products of aadA2 gene with different start codons.Broth microdilution method was used to detect the minimal inhibitory concentrations to streptomycin in Escherichia coli JM109 containing aadA2 gene with different start codons.ResultsaadA2 gene can initiate translation from both ATG and GTG triplets in aminoacyl -3-adenylyltransferase protein synthesis,though there was no plausible ribosome binding site preceding the ATG triplet.Besides GTG and ATG triplets,there was other start codon downstream of the GTG triplet in aadA2 gene.The translated products that initiated from the start codons that described above were all functional AAD(3) proteins that can be detected by anti- aminoacyl -3-adenylyltransferase polyclonal antisera in Western blot and conferred different resistance levels to streptomycin in E.coli.ConclusionWhen inserted as the first gene cassette in class 1 integron,aadA2 gene can initiate translation from ATG triplet and synthetized a functional protein,though there was no plausible ribosome binding site preceding it.This structural characterization of class 1 integron can initiate translation of the open reading frame harbored in gene cassette that integrated into class 1 integron,though there was no plausible RBS preceding the start codon.This make class 1 integron be more convenience to express the genes that capture from environment.
5.Preparation and primary application of antiserum to aminoacy1-3″-adenylyltransferase in integron
Quhao WEI ; Xiaofei JIANG ; Min LI ; Qingfeng HU ; Huoxiang Lü ; Yonglie ZHOU ; Yuan Lü
Chinese Journal of Laboratory Medicine 2012;35(3):227-232
ObjectiveTo prepare antiserum specific to aminoacy1-3″-adenylyltransferase [ AAD (3″) ],and to explore the application value of the prepared antiserum in detecting the expression levels of aadA2 gene that downstream of 8 different promoters (PcS,PcH2,PcH1,PcW,PcS-P2,PcH2-P2,PcH1P2 and PcW-P2 ) of variable regions in class 1 integron.MethodsaadA2 gene was amplified by polymerase chain reaction(PCR) and cloned into the expression plasmid pET19b.After inducing,the recombined aminoacy1-3″-adenylyltransferase[ AAD(3″)] with His-tag was expressed,purified and immunized rabbits to get anti- AAD(3″) specific serum.The prepared antiserum was used to detect the translation levels of aadA2 gene that downstream of different promoters of variable regions in class 1 integron by Western blotting (WB).Broth microdilution method was used to detect the minimal inhibitory concentrations (MIC) to streptomycin in Escherichia coli JM109 with aadA2 gene downstream of different promoters of variable regions.ResultsRecombined AAD (3″) expression plasmid pET19b-aadA2 was constructed successfully and was verified by sequence analysis.After transformed into E.coli BL21 ( DE3 ),a resoluble recombined AAD(3″) high expression strain was obtained.After fermentation,recombined AAD(3″) was purified and immunized rabbits.The anti- AAD(3″) specific serum was obtained with titer > 1∶100 000.WB was used to detect the expression levels of AAD (3″),the translation product of aadA2 gene,that downstream of 8 different promoters of variable regions.The relative expression level of AAD (3″) that downstream of PcW was assumed to be 1,then the relative expression levels of AAD(3″),which all were detected 3 times independently,that downstream of PcS,PcH2,PcH1,PcS-P2,PcH2-P2,PcH1-P2 and PcW-P2 were 12.9±2.3,9.1±1.0,2.0±0.4,16.0±1.3,14.1 ±1.3,10.5±0.7 and 8.9 ±1.7 respective.Very different expression levels of AAD (3″) that downstream of different promoters of variable regions were obtained( F =32.421,P < 0.01 ).The mean values of MIC,which all were detected 3 times independently,to streptomycin in E.coli JM109 with aadA2 gene downstream of PcS,PcH2,PcH1,PcW,PcS-P2,PcH2P2,PcH1-P2 and PcW-P2 were 256,256,64,128,32,128,4 and 64 mg/L respective.These results indicated the different expression levels of aadA2 gene that downstream of different promoters of variable regions can confer their host bacteria different resistance levels to streptomycin.Conclusions Resoluble recombined AAD(3″) is purified successfully and high titer anti- AAD(3″) specific antiserum is obtained from the immunized rabbits.This laid foundation for further investigation on the correlationship between the expressions of intI1 gene and the gene cassettes within variable regions.The expression levels of antibiotic gene cassettes that downstream of different promoters of variable regions are very different,so are the very different antibiotic resistance levels of the host bacteria.Therefore more attentions should be paid to the researches on the classification of promoters of variable regions when molecular epidemiology studies on the class 1 integrons in clinical isolates were conducted.
6.Change of plasma resistin concentration in patients with traumatic brain injury
Songbin YANG ; Qingwei Lü ; Jing ZHOU ; Hangbin HUANG ; Guohai ZHANG
Chinese Journal of Trauma 2011;27(7):588-592
Objective To determine plasma resistin level in patients with traumatic brain injury (TBI) and evaluate its correlations with outcome and inflammatory reaction. Methods Fiftyfour patients with moderate TBI, 71 patients with severe TBI and 40 healthy controls were enrolled in this study. Plasma samples were obtained from the healthy controls on physical examination and from the TBI patients on admission. Enzyme-linked immunosorbent assay ( ELISA) was used to determine the plasma resistin concentrations. Results Twenty patients (37.0% ) and 53 patients (74.6% ) with moderate and severe TBI suffered from an unfavorable outcome (defined as GOS score for 1-3 points) three months after TBI respectively. Plasma resistin levels in the patients with moderate and severe TBI were substantially higher than that in the healthy controls ((21. 9 ± 8. 4) ng/ml and (29. 2 ± 9. 6) ng/ml vs (9. 3 ± 2.6) ng/ml, both P <0. 01] by using covariance analysis. By using the multivariate linear regression analysis, plasma C-reactive protein level (t =2.212,P =0.035; t =2. 274,P =0. 014) and GCS scores (t =3. 120,P =0.007; t=3.986,P=0.003) were associated with the plasma resistin levels. Logistic regression analysis selected plasma resistin level as an independent predictor for 3-month unfavorable outcome of the patients with moderate and severe TBI (odds ratio = 1. 124, 95% CI = 1. 040-1. 221, P = 0.011; odds ratio = 1. 145, 95% CI = 1. 044-1. 232, P = 0. 009). A receiver operating characteristic curve identified cutoff levels of plasma resistin (22.4 ng/ml and 30.5 ng/ml) that predicted 3-month unfavorable outcome of moderate and severe TBI patients with the high sensitivity (70. 0% and 79. 2% ) and specificity (70.6% and 72.2% ) ( area under curve = 0.719, 95% CI = 0.642-0.829, P = 0.000;area under curve =0.735, 95% CI =0. 671-0. 893, P = 0.000). Conclusions Plasma resistin level is increased after TBI and may be involved in inflammatory response of brain injury. Clinical detection of this indicator can help early determine the prognosis of the TBI patients.
7.Effects of Capsaicin on Rat Cytochrome P450 Isoforms by Cocktail Probe Drug Method
Zhou SHU ; Xuejia ZHAI ; Jinmei LIU ; Yongning Lü
China Pharmacist 2014;(10):1613-1619
Objective:To investigate the in vitro effect of capsaicin on four major rat cytochrome P450 ( CYP) enzymes using a cocktail probe drug method. Methods:The in vitro incubation was divided into capsaicin group and the control group. Rat liver micro-somes, probe drugs, capsaicin at various concentration ( buffer solution in the control group) and cofactors were cultured altogether for 20 min. After the culture, the concentration of metabolites was determined by HPLC to assess the activities of enzymes. IC50 value of capsaicin on every isoform was calculated using Graphpad prism 5. 0. Capsaicin and hepatic microsomess were pre-incubated respec-tively for 0, 5, 10, 15, 20 and 30 min, and then the relative activity of the four isoforms at different time was calculated. Results:The activity of the rat liver microsomes enzyme CYP450 isoforms (CYP1A2, CYP2C11, CYP2E1 and CYP3A2) was all inhibited by capsaicin in vitro with IC50 value of 36. 21, 17. 19, 51. 64 and 18. 86 μmol·L-1 , respectively. Pre-incubation could not increase cap-saicin inhibitory activity against the four CYP enzymes. Conclusion:Capsaicin shows inhibition on CYP1A2, CYP2C11, CYP2E1 and CYP3A2 in rat liver microsomes in vitro without pre-incubation time-dependent property.
8.The correlation between femoral popliteal artery stent fracture and in-stent restenosis
Rundan DUAN ; Hui XIE ; Lei Lü ; Zhaoxiong ZHOU
Journal of Interventional Radiology 2017;26(6):496-499
Objective To investigate the correlation between femoral popliteal artery stent fracture and in-stent restenosis (ISR) in patients with arteriosclerosis obliterans of superficial femoral artery and proximal popliteal artery after receiving stent implantation.Methods The clinical data of a total of 97 consecutive patients with arteriosclerosis obliterans of superficial femoral artery and proximal popliteal artery (107 diseased limbs in total),who were treated with primary stent implantation during the period from March 2012 to March 2016,were retrospectively analyzed.The imaging materials,including Doppler ultrasonography,plain radiography,contrast-enhanced CT scan,DSA,etc.were collected,and Kaplan-Meier survival analysis and other statistical analysis methods were used to analyze the related data.Results During the follow-up period,71 patients (72 limbs in total) developed ISR and the incidence of ISR was 67.3% (72/107).The incidences of ISR in the stent-fracture group and non-fracture group were 84.2% (32/38) and 58.0% (40/69) respectively,the difference between the two groups was statistically significant (P=0.01).Conclusion After stent implantation of femoral popliteal artery,fracture of stent is one of the important risk factors for the occurrence of ISR.
9.Study of the correlation between different upper limb abduction angles and the occurrence of malposition of PICC into internal jugular vein
Jianli DONG ; Xiaoqin Lü ; Xiaomei ZHANG ; Hongqiu XU ; Xihuan ZHOU
Chinese Journal of Nursing 2017;52(5):624-626
Objective To investigate the effects of different upper limb abduction angles on the occurrence of malposition of PICC into internal jugular vein. Methods Totally 210 cases of patients treated with PICCs for unilateral breast cancer of our hospital from August,2015 to January,2017 were randomly assigned to three groups with 70 cases in each group. The abduction angle of the upper limb for placement was set at 45° ,90° and 160° , respectively. We chose the basilic vein of the uninfected arm using modified Seldinger technique under the guidance of ultrasound for PICC,and malposition was confirmed by detecting the tip of PICC in internal jugular vein. Results The incidence rate of internal jugular venous dislocation in 45° group was 7.14%(5 cases) and 8.57% in 90° group (6 cases),and no internal jugular venous dislocation in 160° group. There was no statistically significant difference among 45°,90° and 160° groups(χ2=5.95,P>0.05). Significant differences of group comparisons for 45° v.s. 160° and 160° v.s. 90° were found (P<0.05). There was no statistically significant difference between 45° and 90° groups (P>0.05). Conclusion Abduction angles of 45° ,90° and 160° can all be used for PICC placement. The abduction angle can be selected according to specific situation of patients instead of being limited to the standard abduction angle of 90°.
10.Repair of full-thickness meniscal defect with human insulin-like growth factor Ⅰ gene-enhanced tissue engineering
Haining ZHANG ; Yingzhen WANG ; Chengyu Lü ; Feng ZHOU ; Zongyao XU
Chinese Journal of Trauma 2013;(4):359-363
Objective To establish a model of full-thickness avascular meniscal defect to assess outcome of bone-marrow mesenchymal stem cells (BMSCs) modified with human insulin-like growth factor Ⅰ (hIGF-Ⅰ) gene and compounded with injectable calcium alginate gel in repair of meniscal defect.Methods Models of full-thickness defect were created in the anterior comer of meniscus in goats,an area lacking of blood supply.The trial categorized the models to four groups:gene-ehanced tissue engineering (GETE) group (hIGF-Ⅰ transfected BMSCs were mixed with calcium alginate gel),BMSCs group (BMSCs were mixed with calcium alginate gel),empty group (calcium alginate gel was used alone) and control group (the defect was excluded from repair).Macroscopy was done at 4,8,and 16 weeks after operation.Variation of repair tissue was observed by light and scanning electric microscopy and aggrecan in repair tissue was determined as well.Results Meniscal defect was on the mend at 4-16 weeks after operation in GETE group,with the defect area being thoroughly filled with the white,elastic and tight repair tissue similar to normal meniscal tissue.Macroscopic examination showed a better result in GETE group than that in other groups.Light microscopy showed that repair tissue which was mainly fibrochondrocytes was arranged in line with calcium alginate fibers and that space between the fibers was mostly crammed with the matrix secreted by those cells.At the same time,those cells were tightly arranged and the matrix secreted by those cells was equally distributed according to light microscopy.Electroscopy demonstrated neat and tight arrangement of fibers and tight extracellular matrix in fiber space in GETE group.Aggrecan concentration in GETE group was relatively higher than in other groups,but still had difference from the normal meniscus.Conclusion hIGF-Ⅰ gene-transfected BMSCs combined with injectable calcium alginate gel can improve the effect in repair of full-thickness meniscal defect.