1.The value of early assessment in trauma patients by ultrasound
Chinese Pediatric Emergency Medicine 2015;22(6):370-374
Trauma is one of the main reasons for the death and disability in children.Ultrasonic tech-nology has been applied in the early assessment and diagnosis of trauma.it is quick,effective,non-invasive, fast imaging,mobile and suitable for different patients and different parts of the body.It has been used to as-sess the organs in patients with severe trauma widely.
2.Genotyping of human platelet antigen system 5 by PCR restriction fragment length polymorphism
Zhenyu LU ; Dazhuang LIU ; Ziyan ZHU
Chinese Journal of Laboratory Medicine 2001;0(04):-
Objective To develop a polymerase chain reaction restriction fragment length polymorphism (PCR RFLP) method using designed primers for determining the genotype of humen platelet antigens (HPA)5 system. Methods HPA 5 system of 25 healthy blood donors were genotyped using PCR RFLP method. The results obtained by PCR RFLP were compared with those determined by allele specific oligonucleotid hybridization (PCR ASO). Results The results of HPA 5 system obtained by PCR RFLP in 25 health donors were as follows: 24 of aa, 1 of ab and 0 of bb. All were in good agreement with those determined by PCR ASO. Conclusions Because PCR RFLP method is plain, fast and reliable for HPA 5 system genotyping, it is suitable for the diagnosis and therapy of neonatal alloimmune thrombocytopenia, posttransfusion purpura, platelet transfusion refractoriness and so on..
3.Modified laparoscopic exploration of common bile duct:A report of 42 cases
Deyin XU ; Zhenyu WU ; Chunming LU
Chinese Journal of Minimally Invasive Surgery 2001;0(03):-
Objective To investigate the technique and instrument improvement of laparoscopic choledocholithotomy with T-tube drainage. Methods A total of 42 cases of gall stones complicated with common bile duct stones entered the study. During the operation, we exposed the common bile duct before the removal of the gall bladder, opened the common bile duct by a self-made bile duct scalpel, removed the stones by open instruments laparoscopically, and performed choledochofiberscopic examinations and T-tube drainages. Results All the 42 operations were successfully accomplished without the conversion to open surgery. The operation time (exclusive of that of LC) was 80~180 min (mean, 96 min). All the patients got out of bed and received liquids within 24 hours after the surgery. The postoperative hospital stay was 5~9 days (mean, 6 days). The T-tube was removed 3 weeks after the operation in the absence of residual stones or stenosis of bile duct under T-tube choledochography. Follow-up for 6~48 months (mean, 23 months) in 38 cases found no recurrence of stones or biliary tract symptoms. Conclusions The modified laparoscopic choledocholithotomy with T-tube drainage, which shortens the operation time, is an effective and safe method for the treatment of common bile duct stones.
5.Sub-cloning and soluble indution of CILP-MBP recombinant protein by tempera-ture variable
Zhenyu YAO ; Changlong LU ; Bingzhi YU
Chinese Journal of Immunology 1985;0(05):-
Abstract Objective: To construct the Second half of CILP(C2) MBP fusion protein by sub-cloning technology. Methods: Recombinantfusion proteins, which contain the fragments within the C2 region(designated C2F1, C2F2 and C2F3) of the non-porcine nucleotide pyrophos-phohydrolase-homologous region of CILP, were prepared using pMAL-eHis vector. The recombinat genes are induced by different temperatures(22℃,30℃,37℃ ). Results: Expression using pMAL-eHis system can be induced chemically by adding IPTG. 37℃ temperature prmotes in-soluble inclusion-body formation,but 22℃ temperature can not induce the enough expression of recombinant protein. Onl 30℃ temperaturecan induce enough amount of soluble recombinant protein. The characers of fusion proteins that they carried 6 straight histidines, (His)6, at tbeC-terminus of multiple cloning sites for affinity purification were assessed by sodium dodecy1 sulfate-polyacylamide gel electrophoresis(SDS-PAGE) and Western blot. Nucleotide sequences of the insertion genes were confirmed by dideoxy sequencing. Conclusion: C2F1, C2F2,C2F3-MBP fnsion proteins were constructed successfully.These recombinant proteins may provide important roles in the future study on CILP.
6.Effects of several Chinese herbal medicines on SMMC-7721 liver cancer cells by FTIR spectroscopy
Feng LU ; Guohao LU ; Yongbing CAO ; Zhenyu XIAO ; Yutia WU
Academic Journal of Second Military Medical University 2000;0(10):-
Objective:To study the effects of several herbal medicines on SMMC-7721 liver cancer cells with Fourier transform infrared spectrometer(FTIR). Methods: FTIR was employed to determine the infrared spectra(IRs) of SMMC-7721 liver cancer cells cultivated for 20 h with the extracts of Spica prunellae, Herba houttuyniae, Radix bupleuri and Herba artemisiae scopariae. Cluster analysis of IRs was also performed. Results: IR spectral parameters such as band shape, intensity and frequency of the blank, control and herbal-extract-treated cells were compared. There existed obvious blue shift of ? s(PO 2 -), ? as (PO 2 -) bands, red shift of ? as (CH 3), ?(CH 2) bands on the herbal-extract-treated cells IRs. The decreasing ratio of ? as (CH 3) to ? s(CH 2) peak intensity and the increasing ratio of ? s(PO 2 -) to ?(N-H) peak area indicated the destructive effect of herbal extracts on the membrane structure of SMMU-7721 cells and inhibitory effect on the DNA replication respectively. Cluster analysis successfully discriminated the herbal-extract-treated cells from the blank cells and the liver-oriented medicines from the non-liver-oriented medicine. Conclusion: FTIR provides another fast and effective approach to analyze the changes of cells treated with Chinese herbal medicines, which may help to illuminate the functional mechanism of Chinese herbal medicines.
7.Short-term prognostic value of glycohemoglobin and admission plasma glucose in non-diabetic patients with acute ST-elevation myocardial infarction
Chuangao YANG ; Weihong LU ; Xiaojing BAO ; Xiaoping BO ; Zhenyu YANG
Chinese Journal of Postgraduates of Medicine 2013;(7):21-23
Objective To compare the short-term prognostic value of glycohemoglobin (HbA1c) and admission plasma glucose in non-diabetic patients with acute ST-elevation myocardial infarction.Methods Eighty-four non-diabetic patients with acute ST-elevation myocardial infarction from January 2010 to June 2011 were included.Both HbA1c and plasma glucose was measured on admission.Cardiovascular event was followed up in 30 days.Results The average of HbA1c and admission plasma glucose was as cut-off point.The patients were divided into HbA1c < 5.5% group (40 cases) and HbA1c ≥5.5% group (44 cases) according to HbA1c level.The patients were divided into admission plasma glucose ≤ 8.6 mmol/L group (42 cases) and admission plasma glucose > 8.6 mmol/L group (42 cases) according to admission plasma glucose.The incidence of cardiovascular event in 30 days in admission plasma glucose > 8.6 mmol/L group was higher than that in admission plasma glucose ≤ 8.6 mmol/L group [19.0% (8/42) vs.2.4% (1/42)],and there was significant difference(P< 0.05).There was no significant difference in the incidence of cardiovascular event in 30 days between HbA1c ≥5.5% group and HbA1c < 5.5% group (P > 0.05).Admission plasma glucose showed weak correlation with blood creatine kinase isoenzyme MB peak (r =0.233,P <0.05).Conclusion In non-diabetic patients with acute ST-elevation myocardial infarction,elevated admission plasma glucose levels are associated with higher cardiovascular event in 30 days.
8.Three dimensional conformal radiotherapy for esophageal carcinoma: preliminary report of 104 patients
Yiqin ZHANG ; Jincheng LU ; Zhenyu ZHAI ; Qing WEI
Chinese Journal of Radiation Oncology 1992;0(01):-
Objective To evaluate the clinical results of three dimensional conformal radiotherapy (3DCRT) for esophageal carcinoma. Methods From May 1999 to May 2001, 104 patients with pathologically confirmed esophageal carcinoma were randomly divided into conventional radiotherapy (CT) and three dimensional conformal radiotherapy(3DCRT) groups, with 52 patients in each arm. The patients in CT group received conventional radiotherapy in 2.0?Gy/f, 5 fractions a week to a total dose of 70?Gy in 7 weeks. The patients in 3DCRT group were first treated by the same fractionation in CT group to the dose of 40?Gy, and then treated by 3DCRT in 3.0?Gy/f, 5 fractions a week to the total dose of 70?Gy in 6 weeks. Results The 1-and 3-year local control rates were 80.2% and 60.5% in 3DCRT group and 61.6% and 31.7% in CT group(?2 = 4.87, P
9.Effects of PGF2? on the glucose-stimulated insulin secretion in NIT-1 beta cells
Chunling YE ; Zhenyu YUAN ; Bing SHEN ; Jianjun LIU ; Chaoxia LU
Chinese Pharmacological Bulletin 1986;0(05):-
Aim To investigate the effects of PGF_(2?) upon glucose-stimulated insulin secretion and the calcium response in NIT-1 beta cells.Methods Using the radioimmunoassay(RIA),the amount of PGF_(2?) augmentation of glucose-stimulated insulin secretion was determined in different conditions and the confocal laser scanning methods by Fluo-3AM as a fluorescent probe were used to analyze the NIT-1 beta cell intracellular calcium response in correlated various terms.Results In the presence of 16.5 mmol?L~(-1) glucose,PGF_(2?)(0.1,1,5 ?mol?L~(-1)) dose-dependently augmented glucose-induced insulin secretion in NIT-1 beta cells,especially at 5 ?mol?L~(-1)(P0.05).Meanwhile,Exposure of the NIT-1 cells to 5 ?mol?L~(-1) PGF_(2?) induced a rapid increase of intracellular calcium(P
10.Effects of human umbilical cord mesenchymal stem cells combined with goserelin on repairing rat ovarian damage
Xiaochen JIA ; Zhenyu LU ; Wenjing MENG ; Yehui SHI
Tianjin Medical Journal 2017;45(1):25-29
Objective To observe the repairing effect of human umbilical cord mesenchymal stem cells (hUC-MSCs) and goserelin on chemotherapy-induced ovarian injury, and the distribution and growth of hUC-MSCs transplanted in rat chemotherapy-induced ovarian injury. Methods A total of 120 SD rats were randomized into group A-E:A normal group, B NS control group, C goserelin group, D hUC-MSCs group and E hUC-MSCs+goserelin group. The rat premature ovarian failure (POF) model was established by given a loading dose of cyclophosphamide (CTX, 50 mg/kg) followed by daily intraperitoneal injection of CTX (8 mg/kg) for consecutive 14-day. The hUC-MSCs were injected through caudal vein, and goserelin was given by subcutaneous injection 4 days before POF model established. The serum level of estrogen was detected and numbers of follicles were counted. After GFP was transfected by lentivirus, the distribution and growth of stem cells transplanted in rats were observed by animal in vivo imaging system. Results At day 46, the serum level of estrogen showed no significant difference between group A and group E (P > 0.05). There were no significant differences in the counted follicles between group A and group E (P>0.05). After tail vein injection of the transfected cells, GFP positive cells were found in injury ovarian. Conclusion There is a repairing effect of hUC-MSCs and goserelin on ovarian injury.