1.An experimental study on protective effects of flunarizine in retinal ischemic injury
Chinese Journal of Experimental Ophthalmology 2001;19(1):23-25
ObjectiveTo observe the protective effects of flunarizine(FZN) in retinal ischemic injury.MethodsFor the experimental group and the treated group in ischemic reperfusion different stages, the contents of lipid peroxide metabolim malondialdehyde (MDA) in rabbites’ retinal tissues were detected by using TBA.ResultsThe contents of MDA in the experimental and treated groups at 30 min,60 min and 90 min of reperfusion increased remarkably compared with that of the normal control group(P<0.01).The contents of MDA in the treated group at 30 min,60 min and 90 min of reperfusion were much lower than that of MDA in the experimental group at 30 min,60 min and 90 min of reperfusion respectively(P<0.01).ConclusionIntracellular calcium overload may be involved in pathophysiologic process of retinal ischemic injury.Flunarizine has the protective effects in retinal ischemic injury.
2.Effect of thalidomide combined with gefitinib on quality of life andsurvival in advanced non-small cell lung cancer
Fang LIU ; Tingyu TANG ; Jianzong DU ; Guangyue QIN
Chinese Journal of Biochemical Pharmaceutics 2017;37(1):185-187
Objective To investigate the effect of thalidomide combined with targeted therapy of gefitinib on quality of life and survival in patients with advanced non-small cell lung cancer. Methods 90 cases with non-small cell lung cancer were selected in our hospital, according to the treatment were divided into observation group and control group, the observation group were treated by thalidomide combined with gefitinib treatment, patients in the control group received only gefitinib treatment, treatment effects was compared between the two groups, the remission rate, quality of life and survival were compared between two groups of patients. Results The effective rate of the observation group patients was 55.6%, compared with 33.3% in the control group, the difference was statistically significant (P<0.05), the life quality of the observation group of general health (general health, GH), physical functioning (PF), role –physical (RP), role-emotional (RE), mental health (MH), social functioning (SF), bodily pain (BP) and vitality (VT) were significantly better than the control group (P<0.05), there was no significant difference in 1, 2, 3, 4 years survival rate between two groups, while 5 years survival rate in observation group was higher than the control group(P<0.05). Conclusion Thalidomide combined with gefitinib targeted therapy is helpful to improve the quality of life and 5 years survival rate of non-small cell lung cancer.
3.Sustained release ability and safety of matrine polyactic acid microsphere intravitreal injection
Danyan, LIU ; Jingxue, MA ; Deying, CAO ; Jianxin, WANG ; Jianzong LIU ; Lancun, LÜ
Chinese Ophthalmic Research 2010;28(1):34-38
Background The anti-proliferative effect of matrine has been demonstrated and its relevance to prevention and treatment of proliferative retinovitreopathy is concerned.Howeverthe intravitreous injection of free-matrine reiteratively may raise the risk of ocular infection.ObjectiveThe goal of the present study is to investigate the sustained releasing ability and safety of matrine polyactic acid microsphere(MAT-PLA-MSintravitreal injection.MethodsMAT-PLA-MS was prepared by Hebei Medical University and examined under the transmission electron microscope.The release of MAT-PLA-MS was monitored by ultraviolet spectrophotometry.Free-matrine with the dose of 1,2,4mg was intravitreally injected respectively in 12 eyes of New Zealand albino rabbits in free-matrine group and MAT-PLA-MS with matrine(2,4,6mg respectively was administered in 16 eyes separately in matrine microsphere group.The blank microsphere was injected in 6 right eyes as blank control group and normal saline solution was injected in 6 fellow eyes as control group.The retinal function change was evaluated by electroretinogram(ERG),and the morphological and histological change of retina following drug injection were assessed under the slit lamp biomicroscope,indirect ophthalmoscope,light microscope and transmission electron microscope.The decomposed process of MAT-PLA-MS in vitreous was recorded with ocular anterior segment and fundus color camera.Results MAT-PLA-MS containing matrine showed the spherical shape with the mean diameter of 2.28±47μm under the transmission electron microscope and the drug-loading rate 6.17% and drug-release rate 87.93% in vitro for 672 hours,presenting the controllable release characteristics.After implantation into the vitreous,the MAT-PLA-MS containing matrine decomposed gradually with the prolong of time.The b amplitudes of ERG maximum response were significantly declined in 4mg free-matrine injection group in comparison with before injection in various time points(P<0.01).However,no considerably differences were found in MAT-PLA-MS with matrine groups and control groups in various time points following the intravitreal injection(P>0.05).No obvious abnormal was seen under the slim lamp and ophthalmoscope through the study period.The changes of retinal ultrastructure were found from 1 through 28 days after injection of 4mg free-matrine,and slight retinal structural damage was seen from 7 through 28 days after injection of 6mg MAT-PLA-MS containing matrine.ConclusionThese results suggest that MAT-PLA-MS possesses good sustained release feature.MAT-PLA-MS containing matrine has less toxicity to retina than free-matrine after intravitreal injection.MAT-PLA-MS is an excellent drug delivery system.
4.Effects of Bushen Huoxue Granule on motor function in patients with Parkinson's disease: a multicenter, randomized, double-blind and placebo-controlled trial.
Minghui YANG ; Min LI ; Yongqi DOU ; Yi LIU ; Xiaodong LUO ; Jianzong CHEN ; Hengjun SHI
Journal of Integrative Medicine 2010;8(3):231-7
The main clinical symptoms of Parkinson's disease (PD) are resting tremor, muscle rigidity, bradykinesia, and so on. There is no effective treatment for PD yet, and dyskinesia symptoms affect the life qualities of PD patients. The therapy used for reinforcing kidney and activating blood circulation in treatment of PD can achieve good clinical effects.