1.Observation of Curative Effect of Ultraviolet-Irradiated and Oxygenated Autoblood Transfusion in 170 Patients with Cerabral Infarction
Chinese Journal of Blood Transfusion 1988;0(01):-
The treatment of 170 patients with arteriosclerotic cerebral infaction by ultra-violet-irradiated and oxygenated autoblood transfusion was reported.The pati- ents have been treated once every five days,and the five times was a course oftreatment.After a course of treatment,25.3%(43)of all the 170 patients gainedobviously curative effect,28.2%(48)patients showed curative effect and 46.5%(79)patients didn't have any curative effect.A proportion of the patients testedafter the treatment showed the following improvement:the TXB_2 content decreasedin plasma,the 6-KetoPGF_(1?) content increased in plasma,the specific value ofTXB_2 to 6-Keto-PGF_(1?)decreased,the SOD activity in red blood cells was enhan-ced,the LPO content decreased in plasma,the immune function of red blood cellswas enhanced,the PaO_2 and O_2ST increased,and PaCO_2 and TCO_2 decreasedaccording to the blood gas analysis,the high shear viscosity of whole blood andthe fibrinogen content in plasma decreased according to the blood rheologicaltest.
2.Cortical Spreading Depression and Migraine
International Journal of Cerebrovascular Diseases 2006;0(12):-
A migraine is a common essential headache in clinical practice. Studies in recent years have found that cortical spreading depression (CSD) may be one of the important mechanisms for the cause of migraine. This article reviews the relationship between SCD and neurobiological mechanism of migraine,particular expounding the significance in the gene mutations of familial hemiplegic migraine, CSD in migraine pathophysiological mechanisms and their prophylactic treatment.
3.The Role of P-Glycoprotein-mediated Transport of Phenytoin and Carbamazepine in a Multidrug Resistant K562
Progress in Biochemistry and Biophysics 2006;0(12):-
A series of researches concerning the relationship between multidrug transporters and drug resistance in medically intractable epilepsy have been done. There is accumulating evidence demonstrating that P-glycoprotein (PGP) is a candidate to cause AEDs resistance. The effect of PGP inhibitor-verapamil on the intracellular AEDs accumulation in a MDR(multidrug resistant) K562 was investigated. The multidrug resistant (overexpression of PGP) cell line K562/Dox was established and the intracellular PHT and CBZ accumulation in multidrug resistant cell line and non- multidrug resistant cell line was observed. After PGP inhibitor-verapamil was applied to the two cell lines, the concentration change of PHT and CBZ in MDR cell was observed. The results were found: compared with non-MDR cell line K562, which IC50 was significantly increased in MDR cell line K562/Dox after PHT and CBZ was applied; verapamil could decrease significantly the level of IC50 in MDR cell line K562/Dox, and the reversal index were 2.5 and 1.5. The concentration of PHT and CBZ in MDR cell line K562/Dox was lower than that in non-MDR cell line K562, and verapamil significantly increased the concentration of PHT and CBZ in MDR cell line K562/Dox(P
4.P-glycoprotein involved in regulation of penetration of carbamazepine and phenytoin through blood-brain barrier
Aimei MA ; Yongbo ZHAO ; Yinghui CHEN
Chinese Journal of Neurology 2005;0(07):-
Objective To study the effect of P-glycoprotein (PGP) in regulation of penetration of carbamazepine and phenytoin through blood-brain barrier, as to indicating the entry of epileptic drugs into the brain restricted by PGP and deducing the multidrug resistance mechanisms of refractory epilepsy. Methods The microdialysis probe was placed into the cortex of rats, and after systemic injection of carbamazepine and phenytoin, dialysate was collected and the antiepiletic drug concentration in the extracellular fluid of the cerebral cortex was determined by high-performance liquid chromatography (HPLC). Then observing whether the concentration of drugs in extracellular fluid can be enhanced by PGP’s inhibitor verapamil. Results Verapamil significantly enhanced the concentration of carbamazepine in extracellular fluid of the cerebral cortex during 60—90 minutes after injection ((1.74?0.28)?g/ml in 60 minutes and (1.87?0.31)?g/ml in 90 minutes,P
5.Evaluation of the clinical effect in the treatment of 42 patients with acute cerebral infarctions with Qiangli Tianma Duzhong Capsule
Xiang SHEN ; Guodong WANG ; Yongbo ZHAO
Chinese Traditional Patent Medicine 1992;0(11):-
AIM: To evaluate the clinical curative effect of Qiangli Tianma Duzhong Capsule in the treatment of acute cerebral infarctions. METHODS: 72 patients were randomly divided into two groups:the treatment group and contrast group.The treatment group on the basis of the regular treatment was assigned to 28 days of treatment with Qiangli Tianma Duzhong Capsule.The contrast group on the same regular treatment was assigned to 28 days of treatment with Fufang Danshen Injection.The European Stroke Score(ESS) and clinical curative effect were evaluated in the treatment group and control group on the 28~(th) day. RESULTS: After 28 days,the European Stroke Score(ESS) of the treatment group(6.02?4.81) decreased significantly in the control group(7.88?4.85)(P
6.Effect of deep brain stimulation of subthalamic nucleus on anxiety and depression of patients with Parkinson's disease
Qiaoshu WANG ; Yongbo ZHAO ; Bomin SUN
Journal of Clinical Neurology 1993;0(03):-
Objective To evaluate the effect of bilateral subthalamic nuclei deep brain stimulation (STN-DBS) on anxiety and depression of patients with Parkinson's disease(PD).Methods Forty-one consecutive patients with refractory motor fluctuations and dyskinesia were assessed with Hoehn & Yahr scale, Unified Parkinson’s Disease Rating Scale Ⅲ (UPDRSⅢ), HADS, PD Questionnaire Chinese version (PDQ-39) a week before surgery and 12 months after the surgical procedure. Results The scores of UPDRSⅢ, HADS and PDQ-39 significantly increased after STN-DBS treatment (all P
7.Role of aquaporin-4 on cerebral ischemia/reperfusion injury in rats
Yinghui CHEN ; Yongbo ZHAO ; Dengjun GUO
Journal of Clinical Neurology 1993;0(03):-
Objective To investgate the role of aquaporin-4(AQP4) in secondary cerebral edema after ischemia/reperfusion injury in rats.Methods When the models of reversible middle cerebral artery occlusion were established, the alterations of cerebral edema and BBB were evaluated by measuring water and Eval's Blue (EB) contents of cerebral tissue, and the expression of AQP4 in brain was observed by Western Blot at different time point after reperfusion. At last, the correlation between expression of AQP4 and water and EB contents of cerebral tissue were analysed.Results There were found that water and EB contents of cerebral tissue in rat models significantly higher than those of control group at different time point after ischemia/reperfusion ( P
8.Construction of vectors generating Nurr1 shRNA and their silencing effect in cultured dopaminergic cell lines
Yuncheng WU ; Yongbo ZHAO ; Youqing CAI
Chinese Journal of Neurology 2005;0(08):-
Objective To construct the nuclear receptor-related factor 1 ( Nurr1) specific short-hairpin RNA (shRNA) expressing vectors and study their effects on the expression of endogenous genes in MN9D dopaminergic cell lines. Methods Two RNAi recombinant plasmids (named pSC-N1 and pSC-N2) targeting at Nurrl gene were constructed. The purified plasmids were identified by DNA sequencing. After being transfected into MN9D dopaminergic cell lines with Lipofectamine?2000, the silencing effects of Nurrl shRNA expressing vectors on the expression of Nurrl mRNA and protein in MN9D cells were detected using real time fluorescence quantitative PCR and Western blot Results DNA sequencing confirmed that the Nurrl shRNA expressing vectors were constructed successfully. Nurrl mRNA expression in MN9D cells was specifically suppressed after the transfection of pSC-Nl and pSC-N2 by 62.3% and 45.6% respectively. Moreover, the expression of Nurrl protein was significantly suppressed by 57.4% and 72. 0% respectively. The control vectors had no silencing effect Conclusions The vectors pSC-Nl and pSC-N2 have been successfully constructed and can specifically suppress the expression of Nurrl mRNA and protein. Nurrl specific shRNA expressing vector may provide a novel applicable strategy for the study of the function of the genes associated with Parkinson disease and the development of dopaminergic neuron.
9.Construction of pcDNA3.1(+) glial cell line derived neurotrophic factor(GDNF) vector and its expression in eukaryotic cells
Yongbo ZHAO ; Yu LI ; Ying ZHANG
Chinese Journal of Neurology 2001;0(01):-
Objective To construct pcDNA3 1(+)GDNF recombinant eukaryotic expression plasmid and to investigate its expression in eukaryotic cells. Methods The coding sequence of GDNF was amplified from rat astrocytes by reverse transcription PCR (RT PCR) and cloned into pcDNA3 1(+) eukaryotic expression vector The recombinant pcDNA3 1(+)GDNF plasmid was then transfected into eukaryotic cells mediated by using Fu Gene 6 method Analysis by restricting enzyme digestion and DNA sequencing were carried out to demonstrate the sequence of the plasmid GDNF protein and its activity were then determined using pcDNA3 1(+)GDNF plasmid transfected eukaryotic cells Results RT PCR product is 640 bp specific segment Analysis by restricting enzyme digestion and DNA sequencing of pcDNA3 1(+)GDNF recombinant showed results from restricting enzyme were 640 bp and 300 bp segments respectively DNA sequencing revealed that GDNF cloning was successful The recombinant plasmid can express active GDNF protein in eukaryotic cells Conclusion The study on the role of both GDNF and gene therapy is significant in the treatment of Parkinson disease
10.Clinical analysis of acquired immunodeficiency syndrome with neurological complications
Yuncheng WU ; Yongbo ZHAO ; Mengguang TANG
Chinese Journal of Neurology 2001;0(03):-
Objective To investigate the clinical features of acquired immunodeficiency syndrome (AIDS) with neurological complications. Methods Five with neurological complications out of 31 patients with confirmed AIDS in Shanghai area from 1992 to 2001 were analyzed. Results Of the five cases, there were one complicated with vacuolar myelopathy, one vacuolar myelopathy accompanied with dementia, one cerebral tuberculoma accompanied with dementia, one cerebral infarction accompanied with symptomatic epilepsia and trigeminal neuralgia, one polyneuropathy. Two of the vacuolar myelopathy are those showing first occurring manifestations. Conclusion AIDS patients are found at high risk of neurological complications, of which vacuolar myelopathy and AIDS related dementia are more common. If young patients who suddenly suffered from dementia, especially in patients accompanied with opportunistic infections, AIDS should be considered. In these cases serum HIV antibodies should be checked.