1.The treatment of the fissuration of pancreatojejunal stoma by the bridge-crossing internal drainage
Xianwei DAI ; Jin XU ; Xianmin BU ; Feng GAO ; Xiaobo ZHANG
Journal of Endocrine Surgery 2009;3(5):319-322
Objective The purpose of this study was to discuss the therapies for hemorrage caused by the fissuration of pancreatojejunal stoma and pancreatic leakage after pancreatoduodenectomy.Methods After three cases of pancreatoduodenectomy,the disruptions of pancreatojejunal stoma resulted in serious pancreatic leakage and the hemorrage in abdominal cavity.During all the second operations,the drainage-tube insertions into the main pancreatic ducts were used to lead the pancreatic juice into the neighboring loop of jejunum.Results Afer the operations,the supportive treatment,continuous irrigation of peritoneal cavity and pancreatic enzyme inhabition were given to the patients of these cases and all of the patients were successfully cured.Conclusions The bridge-crossing internal drainage which inserts drainage-tube into the main pancreatic duct was a convenient and effective therapy and method to rescue the hemorrage caused by the fissuration of pancreatojejunal stoma and pancreatic leakage after pancreatoduodenectomy.While the patients' lives were saved,their functions of pancreas were preserved and the qualities of life were improved after the operations.
2.Efficacy of nasal packing, septal suture technique and vacuum sealing drainage after nasal septum surgery.
Baoqiang DAI ; Weiwei LIU ; Aiyan JIN ; Xue JIANG ; Lichen FENG
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2014;28(2):118-121
OBJECTIVE:
The objective of this study was to evaluate the effect of nasal packing, septal suture technique and vacuum sealing drainage (VSD) after septoplasty.
METHOD:
Ninety patients of nasal septal deviation in Combination with outfracture of the inferior turbinates who had received septoplasty were selected in this study. The patients were allocated into three groups, with thirty in each: for packing group, marcel materials were used for nasal packing after septoplasty; for suturing group, septal suture technique was performed after septoplasty; for VSD group, one drainage tube was used for negative pressure sucking after septoplasty without nasal packing. Postoperative signs and symptoms were compared between three groups. The comfort degree assessment included headache and nasal obstruction were evaluated by using visual analogue scale (VAS) at the 12th hour and 24 hour after operation. The edema in nasal cavity, hemorrhage. abscess,adhesive and healing rates after operation were compared among three groups.
RESULT:
The VAS score of headache and nasal obstruction and the severity of patient's conditions were significantly less in septal suture group and VSD group than that in packing group at the 12th and 24th hour after operation. The mucosa edema of nasal cavity was significantly slighter in septal suture group and VSD group than that in packing group at the third day after operation. The healing rates and number of complications are better in septal suture group and VSD group than those in packing group at the 7th day after operation. There were no hemorrhage or abscess in VSD group.
CONCLUSION
Septal suture technique and VSD after septoplasty can significantly relieve the distress of patients and reduce the healing time of mucosa in nasal cavity without increasing the risk of complications.
Adolescent
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Adult
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Aged
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Female
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Humans
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Male
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Middle Aged
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Nasal Obstruction
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surgery
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Nasal Septum
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surgery
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Nasal Surgical Procedures
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Negative-Pressure Wound Therapy
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methods
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Postoperative Period
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Rhinoplasty
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methods
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Suture Techniques
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Young Adult
3.Establishment and application of a Taqman MGB real-time PCR for the detection of Streptobacillus moniliformis
Jin XING ; Yufang FENG ; Bingfei YUE ; Zhengming HE ; Fangwei DAI ; Xiaoying SA ; Jiejie DAI
Chinese Journal of Comparative Medicine 2015;(8):62-67
Objective To establish a real-time quantitative PCR ( qPCR) method for detection of Streptobacillus moniliformis, which can be used to rapidly detect this pathogen in laboratory animals .Method According to the S. moniliformis sequences published in NCBI , we designed specific primers and MGB probe .The specificity, sensitivity and stability of this method were evaluated using 24 standard reference strains .Total of 823 respiratory specimens of animals including mice, rats, guinea pigs, hamsters, rabbits, Mongolian gerbils and tree shrews , were detected by this established Taqman MGB qPCR method .Results We had successfully established the S.moniliformis Taqman MGB qPCR method . S.moniliformis was not detected in the samples of mice , rats, guinea pigs, hamsters and rabbits.The positive rate of S. moniliformis was 1.5% ( 1/65 ) and 61.7% ( 37/60 ) in conventional Mongolian Gerbils and tree shrews , respectively . Conclusions Our developed qPCR method can be used to effectively detect S.moniliformis in laboratory animals .Moreover , its accuracy and sensitivity are better than the national standard method .This study laid the foundations for optimizing the quality inspection system of laboratory animals .
4.Curcuma wenyujin Diterpenoid compound C fought against gastric cancer: an experimental study.
Hai-feng JIN ; Bin LU ; Jin-feng DAI ; Gui-qin SHENG
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(2):216-221
OBJECTIVETo study the role of nuclear factor (NF)-kappaB pathway with p38MAPK in Curcuma wenyujin diterpenoid compound C (CDCC) fighting against inflammation and inducing gastric cancer cell apoptosis by stimulating gastric cell SGC7901 with tumor necrosis factor-alpha (TNF-alpha).
METHODSHuman umbilical vein endothelial cells (HUVECs) and human gastric cancer SGC-7901 cells were in vitro acted by CDCC in different concentrations at different time points. Their growth inhibition ratios were measured by MTT assay. The apoptosis rate of gastric cancer cells was detected by Annexin V-FITC/PI double staining. Nuclear translocation of p65 was detected by cell immunofluorescence. Expression levels of p38MAPK/P-p38MAPK, p65/P-p65, and Caspase 3/P-Caspase 3 were measured by Western blot.
RESULTSCDCC had significant inhibitory effect on the proliferation of SGC-7901. It also could effectively induce the apoptosis of gastric cancer cell SGC-7901. It also could reduce nuclear translocation of p65 in gastric cancer cell SGC-7901. Results of Western blot indicated that expression levels of p38MAPK and p65 were reduced and the expression level of Caspase-3 was elevated along with increased concentrations of CDCC (P<0.05).
CONCLUSIONApoptosis executive protein Caspase 3 activated by regulating p65 via p38MAPK might be one of possible mechanisms for CDCC fighting against inflammation and gastric cancer.
Apoptosis ; Caspase 3 ; Cell Line, Tumor ; Curcuma ; Diterpenes ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; NF-kappa B ; Stomach Neoplasms ; drug therapy ; Tumor Necrosis Factor-alpha
5.Study on the mechanism of reversal effect of Curcuma Wenyujin on MDR of SGC7901/VCR.
Jin-Feng DAI ; Li-Jun CAI ; Chao-Ying CHEN ; Jin YU ; Bin LU
Chinese Journal of Integrated Traditional and Western Medicine 2014;34(12):1507-1511
OBJECTIVETo study the mechanism of reversal effect of Curcuma Wenyujin n-Butyl alcohol extract (CWNAE) on multiple drugs resistance (MDR) of SGC7901/VCR cells.
METHODSSGC7901/VCR cells were co-culured with different concentrations CWNAE (80, 40, and 20 μg/mL) and Verapamil (VP, 10 μg/mL) for 24 h, and then acted with Adriamycin (ADM) for 1, 2, and 4 h, respec- tively. SGC7901/VCR cells with no intervention were taken as the vehicle control group. SGC7901/VCR cells treated with ADM alone were taken as the control group. The effect of CWNAE on intracellular ADM concentration was detected by flow cytometry (FCM). Cells were treated as mentioned before without any intervention of ADM. SGC7901/VCR with no ADM intervention were taken as the control group. The effect of CWNAE on the expression of P-glycoprotein (P-gp), lung resistance protein (LRP), and glu- cosylceramide synthase (GCS) was studied by Western blot. The effect of CWNAE on the location and expression quantity of P-gp was further illustrated by immunohistochemistry (IHC).
RESULTSCompared with the ADM group, the expression ratio obviously increased in the W80, W40, W20, and VP10 groups with statistical difference (all P < 0.05). The comparative expression quantity of P-gp, GCS, and LRP in SGC7901/VCR cells was obviously higher than that of non-MDR with statistical difference (all P < 0.05). The expression quantity of P-gp and GCS could be obviously down-regulated by 80 and 40 μg/mL CWN- AE, and 10 μg/mL VP, with no effect on the expression of LRP. Results of IHC proved that P-gp was mainly expressed on the cytomembrane or in the plasma, and it was also expressed on the nuclear membrane. P-gp in different locations could all be down-regulated by CWNAE.
CONCLUSIONSCWNAE could reverse the MDR of SGC7901/VCR cell line probably by inhibiting the expression of P-gp and GCS. CWNAE had no effect on LRP that also highly expressed on SGC7901/VCR. So we supposed that CWNAE could become a potential drug to reverse MDR of highly expressed P-gp and GCS.
ATP-Binding Cassette, Sub-Family B, Member 1 ; Cell Line, Tumor ; Curcuma ; Doxorubicin ; Drug Resistance, Multiple ; drug effects ; Drug Resistance, Neoplasm ; drug effects ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Humans ; Stomach Neoplasms
6.Correlation of perfusion CT findings with microvessel density and vascular endothelial growth factor expression in renal cell cancer
Yan CHEN ; Jin ZHANG ; Zheng ZHU ; Jingrui DAI ; Xiaoli FENG ; Haizhen LU ; Chunwu ZHOU
Chinese Journal of Urology 2009;30(5):306-308
Objective To study the perfusion imaging features of renal cell cancer(RCC) and their correlation with microvessel density(MVD) and vascular endothelial growth factor(VEGF) ex-pression status. Methods Dynamic contrast-enhanced multislice spiral CT was performed preopera-tively in 73 cases with histologically proven RCC (65 cases of clear cell carcinoma, 3 of papillary ade-nocarcinoma, and 5 of chromophobic carcinoma). Blood volume (BV), blood flow (BF), mean transit time (MTT), and permeability surface area product (PS) of tumors were recorded. MVD and VEGF expression status were studied by immunohistochemial staining. Results The mean BV, BF, MTT negative in 35 (47.9 %) cases, slightly positive in 24 (32.9 %) cases, moderate positive in 10 (13.7 %) cases, and intensively positive in 4 (5.5 %) cases. MVD of RCC was positively correlated with BV, BF and PS (P<0.01),and negatively correlated with MTT (P<0.05). No relationship was found be-tween the expression of VEGF and perfusion CT parameters. Conclusion Perfusion CT scan is use-ful to evaluate the angiogenesis status of RCC.
7.Relationship between the serum bilirubin level and the severity of disease and short -term outcome in patients w ith ischemic stroke
Guodong CHEN ; Jin XIAO ; Binrong LIU ; Jian DAI ; Feng WANG ; Zhiyong WU ; Zhaohu CHU
International Journal of Cerebrovascular Diseases 2016;24(2):157-162
Objective To investigate the relationship betw een the serum bilirubin level and the severity of disease and short-term outcome in patient w ith acute ischemic stroke. Methods A total of 120 consecutive inpatients w ith acute ischemic stroke w ere enroled and 105 healthy subjects at the same time w ere used as a control group. The biochemical indicators, such as serum total bilirubin, direct bilirubin, indirect bilirubin, blood lipid, and blood glucose w ere measured w ithin 24 h after admission. The National Institutes of Health Stroke Scale ( NIHSS ) w as used to assess the neurological deficits on the day of admission. The NIHSS score <8 w as defined as mild stroke and ≥8 w as defined as moderate to severe stroke. At discharge or 14 d after onset, the modified Rankin Scale (mRS) w as used to evaluate the clinical outcomes, 0-2 w as defined as good outcome and > 2 w as defined as poor outcome. The levels of serum total bilirubin, direct bilirubin, and indirect bilirubin w ere measured again. Results The levels of serum total bilirubin, direct bilirubin, and indirect bilirubin in the moderate to severe stroke group w ere significantly higher than those in the mild stroke group ( P <0.01) and the control group ( P <0.01). Multivariate logistic regression analysis show ed that the increased levels of serum total bilirubin (odds ratio [OR] 1.855,95%confidence interval [CI] 1.390-2.475; P <0.01), indirect bilirubin ( OR 3.380, 95%CI 1.271-11.901; P <0.05), and direct bilirubin ( OR 3.51, 95%CI 1.062-11.473; P <0.01) had significantly independent correlation w ith baseline disease severity. Univariate analysis show ed that the increased serum total bilirubin level on admission w as associated w ith the short-term poor outcome ( P <0.05), but after adjustment for other confounding factors, there w as no statistical significance ( OR 2.411, 95%CI 0.803-7.243, P >0.05). Conclusions The serum bilirubin level show ed stress increase in patients w ith cerebral infarction in acute phase; and it w as significantly associated w ith the degree of neurological deficit, but it w as not associated w ith short-term outcome. It might be a defense response to the body for stroke events.
8.Establishment and application of CODEHOP PCR assay for detection of Pasteurella spp.in laboratory animals
Jin XING ; Yufang FENG ; Bingfei YUE ; Zhengming HE ; Xiaomei SUN ; Jiejie DAI
Chinese Journal of Comparative Medicine 2017;27(1):85-90
Objective We established a rapid detection method of Pasteurella spp.and provided a reference for microbiological quality control of laboratory animal .Methods According to the β subunit of bacterial RNA polymerase ( rpoB) protein multiple alignments of 13 different Pasteurella spp.published in NCBI .The degenerate primers were designed by CODEHOP designer online .CODEHOP PCR method was applied to detecting Pasteurella spp.after the specificity and sensitivity of the method had been evaluated by 21 reference strains .Results Standard strain amplified fragment were about 200 bp by degenerate primers PastF6/PastR5.The primers are able to distinguish between Pasteurella spp.and the other pathognic organisms of laboratory animal respiratory tracts .Sensitivity of this method were 0.2 pg/μL~2 pg/μL to different Pasteurella.The Pasteurella positive rate was 19.1% in 609 animal ' s respiratory samples .The accuracy of positive results was 100%through verifying by sequenced and blast .Conclusions The established method has good specificity and sensitivity .It can be used to detect Pasteurella spp.in animal samples .
9.Clinical research on application of selective β receptor blockers on patients with chronic obstructive pulmonary Disease
Binbin QIN ; Lili DAI ; Xiaohong CHEN ; Jie FENG ; Ye JIN ; Bin SHEN ; Ying FANG
Clinical Medicine of China 2015;31(7):604-606
Objective To evaluate the safety and effectiveness of the treatment by selective β 1 receptor blockers on patients with chronic obstructive pulmonary disease (COPD).Methods Eighty cases of COPD Ⅲ (stable period) inpatient with or without coronary heart disease were collected in The Second People's Hospital of Shanghai from September 2012 to November 2013.The patients were randomly divided into testing group (Metoprolol treatment group) and control group (regular treatment group) with 40 cases for each group.Metoprolol group therapy based on the use of conventional metoprolol tablets,an initial dose of metoprolol 12.5 mg/d,titrated to the appropriate dose based on heart rate and tolerance of the morning resting heart rate of 55 to 60 times/min that reached the target dose of metoprolol continuous medication for 12 months.Blood gas analysis were recorded before and after treatment,pulmonary function,and 6 min walk test (6MWT) and were chronic lung disease Assessment Test (CAT) Rating.The control group was administrated regular treatment while the testing group added small dose of Metoprolol with titration to an appropriate dose on this basis.12 months in a row,and assessed the end stage.Results (1) After the application of selective β receptor blockers on testing group,no statistically significant difference (P>0.05) in the values of FEV1 in anticipation value% (testing group:(45.45 ± 4.68) % vs.(43.32 ± 4.84) %;control group:(44.23 ± 4.68) % vs.(42.58 ±4.24)%),PaO2(testing group:(75.92± 10.78) mmHg vs.(74.86± 11.21) mmHg;control group:(70.23 ±6.45) mmHg vs.(72.36±7.28) mmHg) and PaCO2(testing group:(46.28±8.28) mmHg vs.(47.46±10.22) mmHg);control group:(44.54 ± 8.89) mmHg vs.(42.36 ± 7.45) mmHg) before and after treatment.But the 6MWD (testing group:(287 ± 23) m vs.(384± 34) m;control group:(284 ± 25) m vs.(295 ±21) m) and COPD appraisal test(CAT) (testing group:(21±7) score vs.(17±6) score);control group:(22 ±5) score vs.(20± 6) score) had improved significantly compared with that before treatment,with significant difference(t=4.903,4.784;P<0.05).Conclusion Selective β receptor blockers have no effect on the airway resistance of COPD patients and reduction on pulmonary function.It can also increase the exercise tolerance and enhance the living quality for improving clinical prognosis.
10.Study on the expression of telomerase RNA in leukocyte.
Liji JIN ; Hongmei ZHANG ; Feng DAI ; Lijia AN
Journal of Biomedical Engineering 2003;20(1):76-78
Total cDNA of human telomerase RNA(hTR) gene was cloned by means of RT-PCR and inverted into retroviral vector (pLNCX) to construct the mammalian cell expression plasmid. Then, by using lipofectin-mediated DNA transfection, the obtained expression plasmid was successfully transfected into human normal peripheral blood leukocyte. All data suggested that expression of transfected exogenous hTR gene can not reconstitute telomerase activity. Flow cytometry analysis and data from cell growth curve also indicated that expression of exogenous gene can not prolong the longevity of leukocyte, but rather inhibit the growth of leukocyte and induce its apoptosis. We conclude that expression of exogenous gene may block the coalition of telomerase RNA and its catalytic subunit(hTRT) and block the coalition of telomerase RNA template and telomere DNA, thus affecting telomerase activity and repressing cell proliferation.
Cells, Cultured
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Gene Expression
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Humans
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Leukocytes
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cytology
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enzymology
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metabolism
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RNA
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biosynthesis
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genetics
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Telomerase
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biosynthesis
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genetics
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Transfection