1.Expression and significance of FasL and FAP-1 in acute myeloid leukemia
Journal of Leukemia & Lymphoma 2009;18(8):481-483
Objective To explore the expression of the mRNA level of Fas (CD95) ligand/FasL and Fas-associated phosphatase-1/FAP-1 in acute myeloid leukemia. Methods The expression of FasL and FAP-1 were detected in 54 patients with AML and 10 normal subjects by semi-quantitative reverse transcriptase-polymerase chain reaction (RT-PCR). β-actin used as internal reference. The changes of FasL was observed after induction chemotherapy in 16 AML patients. The expression of Fas was detected in 54 patients with AML by flow cytometry. Results The mRNA levels of FasL and in 54 patients were remarkably higher(P <0.05) than the normal controls. The rates of first complete remission(CR) were significantly higher in FasL(+) (77.78 %) than in FasL(-) cases(16.67 %) (P<0.01). The FasL level declined in 10 patients with good response to therapy (P<0.01), and high level in 6 nonresponding patients with poor response (P>0.05). The mRNA levels of FAP-1 in 54 patients was remarkly higher than that of the normal control. 8/29 cases in Fas-positive group were positive for FAP-1 mRNA expression. 19/25 cases in the Fas-refractory group didn't express FAP-1 mRNA. Conclusion The expression of FasL was high in AML. The rates of complete remission were high in FasL positive cases. The FasL level declined in patients with good response to therapy. The expression of FAP-1was partly expressed in AML. The expression of FAP-1 was less in Fas positive group.
2.Biomechanical study and application of lateral-anterior internal fixation with TSRH in thoracolumbar fracture
Zhenhua JIANG ; Xiangdong CHEN ; Feng ZHANG
Orthopedic Journal of China 2006;0(06):-
0.05).[Conclusion]Lateral-anterior fixation with use TSRH not only has effective result in strength, rigidity and stability of the spine, but also is superior to the control group in loading-bearing ability and stability of the spine. There is no significant difference between the TSRH group and Z-plate group. But TSRH is relatively simple to operate and is cheaper than Z-plate, and has exact clinical ontcome.
3.The clinical analysis of 64 patients with poststroke epilepsy
Zhenhua WANG ; Lanying JIN ; Feng GAO
Chinese Journal of Postgraduates of Medicine 2011;34(z2):14-16
Objective To explore the clinical characteristics of poststroke epilepsy and to discuss the association with the type of stroke,the location of focus.Methods Clinical information of 64 patients with poststroke epilepsy taken from 932 patients with stroke were analyzed retrospectively.Results In the patients with first stroke,the incidence of poststroke epilepsy was 6.9%.Among them,47 cases belong to early seizure (73.4%) and 17 cases belong to late seizure (26.6%).The incidence of poststroke epilepsy was difference between ischemic stroke and hemorrhagic stroke.There were more cases of stroke in cortical focus than subcortial one.Onset seizures type was more cases of partal seizure than generalized tonic-seizure (GTS).The treatment on early seizure could be short-range treatment and the treatment on late seizure should be long-term standardized treatment and regular.Conclusions Occurrence of poststroke epilepsy were involved in the type of stroke,the location of focus (cortex / subcortex).It is helpful for guiding the clinical therapy of patients with stroke and improving the quality of their life to analyse the clinical characteristics of poststroke epilepsy.
4.Investigation of sleep quality and mental health status of chronic obstructive pulmonary disease patients with respiratory failure
Jia FENG ; Bifei FANG ; Zhenhua ZHU
Chinese Journal of Primary Medicine and Pharmacy 2017;24(19):2972-2975
Objective To explore sleep quality and mental health status of chronic obstructive pulmonary disease(COPD) patients with respiratory failure.Methods From October 2015 to June 2016,COPD patients with respiratory failure hospitalized in our hospital were selected as study group.Patients without COPD hospitalized in our hospital were selected as the control group.The sleep quality and mental health were compared between the two groups.Results The age and body mass index (BMI) between the two groups showed no significant difference (t =0.753,0.693,all P >0.05).The forced expiratory volume in one second (FEV1%) expected value,arterial oxygen pressure (PaO2),oxygen saturation (SaO2) in the study group were (52.34 ± 12.25) %,(9.21 ± 1.83) mmHg,(90.36 ± 3.47) %,which were significantly lower than those in the control group,the differences were statistically significant (t =25.199,5.414,16.439,all P < 0.01).The somatization,obsessive-compulsive symptoms,interpersonal sensitivity,depression,anxiety,terror between the two groups had significant differences (all P < 0.05),the differences in hostility,paranoia and psychosis were not statistically significant (all P > 0.05).The quality of life scale (GQOL-74) scores in cognitive function [(74.47 ± 6.13) points],psychological function [(71.28 ± 7.36) points],physical function [(73.73-± 8.85) points] and social function [(74.35 ± 7.18) points] in the study group were significantly lower than those in the control group,the differences were statistically significant (t =9.735,13.972,5.739,10.040,all P < 0.01).Conclusion The sleep quality and mental health status of COPD patients with respiratory failure is poorer,we should pay more attention and intervention in clinical diagnosis and treatment.
5.Renal transplantation of 26 cases from living related renal donor
Shaolin ZHANG ; Bochuan CHEN ; Zhenhua FENG
Journal of Chinese Physician 2001;0(09):-
Objective To investigate the efficacy of renal transplantation from living related renal donor.Methods A retrospective analysis of 26 cases of renal transplantation from living related renal donor and 84 cases cadaveric renal transplantation was conducted.Results All the operations in these two groups underwent smoothly.The rate of patient/renal survival was 96.15%/96.15%,96.15%/96.15%,96.15%/92.31% respectively in the group of living related renal transplantation,and 96.43%/95.23%,85.71%/80.95%,65.48%/60.71% respectively in the group of cadaveric renal transplantation 1,3,5 years after the operation.The time of cold blood-deficiency and the time of warm blood-deficiency in the living related renal transplantation group were both shorter than those of the cadaveric renal transplantation group(P
6.Design of a system for real-time seizure detection and closed-loop electrical stimulation.
Zhenhua HU ; Zhouyan FENG ; Xiaojing ZHENG ; Ying YU
Journal of Biomedical Engineering 2015;32(1):168-174
In order to investigate the effect of deep brain stimulation on diseases such as epilepsy, we developed a closed-loop electrical stimulation system using LabVIEW virtual instrument environment and NI data acquisition card. The system was used to detect electrical signals of epileptic seizures automatically and to generate electrical stimuli. We designed a novel automatic detection algorithm of epileptic seizures by combining three features of field potentials: the amplitude, slope and coastline index. Experimental results of rat epileptic model in the hippocampal region showed that the system was able to detect epileptic seizures with an accuracy rate 91.3% and false rate 8.0%. Furthermore, the on-line high frequency electrical stimuli showed a suppression effect on seizures. In addition, the system was adaptive and flexible with multiple work modes, such as automatic and manual modes. Moreover, the simple time-domain algorithm of seizure detection guaranteed the real-time feature of the system and provided an easy-to-use equipment for the experiment researches of epilepsy control by electrical stimulation.
Algorithms
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Animals
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Deep Brain Stimulation
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instrumentation
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Disease Models, Animal
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Electroencephalography
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Epilepsy
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diagnosis
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Equipment Design
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Rats
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Seizures
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diagnosis
7.Application of 3.0T magnetic resonance diffusion weighted imaging in evaluating the effect of advanced gastric cancerˊs neoadjuvant chemotherapy
Zengxin LU ; Zhenhua ZHAO ; Aijing SUN ; Feng TAO ; Jieqing LYU
Cancer Research and Clinic 2015;(7):453-457
Objective To evaluate the clinical value of 3.0T magnetic resonance imaging (MRI) diffusion weighted imaging (DWI) on evaluation effect of neoadjuvant chemotherapy in advanced gastric cancer. Methods 3.0 T MRI DWI examination was performed in 42 cases of advanced gastric cancer diagnosed by gastroscopy and pathology, including 32 patients were examined with DWI both before and after chemotherapy. Lymph nodes of gastric cancer lesions and display ability of stomach were measured, and the area of the apparent diffusion coefficient (ADC) values in normal stomach and tumors were compared. ADC values were compared in the same patients before and after neoadjuvant chemotherapy and analyzed along with postoperative pathological examinations. Results In a total of 40 patients who received 74 DWI examinations, ADC values in tumor and lymph nodes were significantly higher than those in normal tissue. The ADC value in tumors was (1.348 ±0.278) ×10-3 mm2/s, and in 12 cases of stomach lymph node enlargement was (1.329±0.188) ×10-3 mm2/s. However, the average ADC value of normal stomach was (2.081± 0.189) ×10-3 mm2/s with significantly lower DWI than that of the former (P< 0.001). After chemotherapy, the ADC value in tumors was increased, which was (1.572 ±0.261) ×10-3 mm2/s (P< 0.001). After neoadjuvant chemotherapy, 16 patients received gastric cancer radical prostatectomy, and postoperative pathological TRG ratings of tumor were decreased with different extent. Tumor cell density (TCD) before treatment with an average of 4.45 ×10-5 / px2, which was downgraduated to 2.48 ×10-5 / px2 after chemotherapy and surgery. Negatively correlation between TCD values and ADC values were observed. Conclusion MRI DWI examination can effectively detect advanced stomach cancer and the associated lymph node enlargement. Comparison of tumor morphology and ADC values in advanced gastric cancer before and after neoadjuvant chemotherapy has clinical value in prognosis.
8.Experimental Investigation of Correlation Between MSCT Perfusion and Blood Lipid in Steroid-induced Avascular Necrosis of Femoral Head
Yue DONG ; Feng WEN ; Zhenhua WU ; Guoguang FAN
Journal of Practical Radiology 2001;0(06):-
Objective To explore the correlation between change of blood lipid and MSCT perfusion imaging in steroid-induced femoral head necrosis in adult rabbits.Methods 20 rabbits 1~1.5 years old in age were divided into two group:16 rabbits in experimental group,8 mg/kg Methylprednisolone was injected twice a week;4 rabbits were used as control group.At 2,4,6,8 week after injection,4 rabbits in experimental group and 1 rabbit in contral group were killed respectively.Before killing the rabbits,the blood lipid was examined and MSCT perfusion imaging was done and the correlation between them was analysed.The index of TRIG,CHOL,Perfusion,PEI,TTP,MTT.All femoral heads were undergone pathological investigation.Results Two weeks after injection,blood lipid began increasing,then blood flow of femoral head decreasing obviously with prolongation of injection;PEI and MTT decrease only 4 weeks after injection.There were a negaitive correlation between blood lipid and blood flow of femoral head.Conclusion There were obviously correlation between the level of increasing blood lipid and blood flow decreasing in steroid-induced avascular necrosis of femoral head in rabbit.
9.Gene determination of transfusion transmitted virus-like mini virus
Yuanyuan LIU ; Zhenhua MA ; Feng WANG ; Junqi NIU
Journal of Jilin University(Medicine Edition) 2006;0(06):-
Objective To detect the transfusion transmitted virus-like mini virus(TLMV) sequence gene in patients with chronic hepatitis and to study the TLMV infection in population.Methods Two sets of primers in the most conservative regions of Japan strains TLMV-CBD279 and CBD231 were designed to amplify TLMV templete extracted from sera of patients with chronic hepatitis B using PCR.PCR products were cloned into pGEMR-T vector and sequenced.Results The results showed that 72%of TLMV sequence isolated in China was identical to that in Japan,suggesting that there was TLMV infection in patients with chronic hepatitis B in China.The patients with hepatitis virus C and the healthy blood donor had the highest infectious rates of TLMV.Conclusion TLMV infection exists in patients with chronic hepatitis B in China.
10.Method of Radix Scutellariae proccessed with wine and its HPLC fingerprint
Yun YANG ; Weisheng FENG ; Yongju WEN ; Zhenhua ZHU ; Runtao TIAN
Chinese Traditional Patent Medicine 1992;0(05):-
AIM: To investigate the processing and HPLC fingerprint of Radix Scutellariae processed with wine,and to set up appropriate quanlity control standard. METHODS: chromatographic condition of HPLC-UV fingerprint consisted of Hypersil C_18 column(200 mm?5.0 mm,5 ?m),mixture of methanol,0.4% phosphoric acid and acetonitrile as a mobile phase in a gradient mode.Flow rate was 1.0 mL/min and detection wavelength was set at 277 nm. RESULTS: There were no evident differences among fingerprints of Radix Scutellariae that was normatively processed from the production areas. CONCLUSION: The process is feasible,and can be used to provide a basis for quanlity control of Radix Scutellariae.