ABSTRACT
Objective To study the clinical efficacy of computer-assisted stereotactic brain transplantation of human retinal pigment epithelium (hRPE) cells into the patients with Parkinson disease (PD). Methods Under the guidance of computed X-ray tomography and magnetic resonance imaging image mergence, 4 × 106 hRPE cells were transplanted into the putamen and ventriculus laterlis of 17 cases of PD by stereotactic surgery. The transplantation sites were contralateral to the side of main symptoms and signs. The curative efficacy were observed at the 7th day, 1st month, and 3rd month after the transplantation. Results The contralateral symptoms were ameliorated continuously after the transplantation. Three months after the surgery, the total effective rate of cell transplantation was 88. 2 %, and 82. 4 % of the cases got significant improvement. The cases that got ipsilateral improvement soon after the surgery gave a total effective rate as high as 88. 2 % at the 3rd month during follow-up period, and 64. 7% among these cases improved significantly. Only a minority of cases had transient dizziness and hemiparesis, but the duration was short. Conclusion The therapy, computer-assisted stereotactic transplantation of hRPE ceils in the treatment of PD, is safe and efficient.
ABSTRACT
AIM: To explore the role of plasma endothelin (ET) in patients with acute cerebral infarction (ACI) and its change after nimodipine treatment.METHODS:Sixty-six patients with ACI were randomly divided into 2 groups according to blood pressure:hypertension ACI group 35 patients［M 20,F 15;age (65± s 11) a］ and pure ACI group 31 patients［M 17,F 14; age (62±10) a］.Plasma ET was measured by radioimmunoassay and compared with 27 healthy individuals.Among them,42 patients（hypertension ACI group 25 patients，pure ACI group 17 patients） with ACI were given nimodipine 4 mg, iv,gtt, qd, for 2 wk and measured ET again. RESULTS:Plasma ET in 2 groups were (144±42) ng*L-1 and (72±35) ng*L-1 respectively, and that were (94±55) ng*L-1 and (60±37) ng*L-1 respectively after treatment with nimodipine, but was still higher than that in healthy individuals (P<0.01). CONCLUSION: The level of plasma ET was associated with blood pressure and the severity of disease. ET is closely related with ACI. Nimodipine reduces the plasma ET while nerve function default degree is effectively improved.
ABSTRACT
Objective To explore the effect and mechanism of taking sibelium long term for treatment and preventing the attack again of cerebral infartcion.Methods 339 patients with cerebral infarction were divided into 2 groups randomly,namely preventing group(120 cases) and control group(119 cases).The basic treatment in the two groups are the same.The preventing group was taken siblium 10 mg once every evening,at least 6 months.To observe the clinical effect in 1 month and the rate of attack again in 1 year.The two groups were measured on hemorrheology,blood lipid and platelet aggregation rate before and after treatment one year.Results After treatment one month,the significant effective rate in sibelium preventing group is 80%,the total effective rate is 98.3%,but the control group is 54.6% and 74.8%(all P