1.NADPH oxidase and atherosclerosis and ischemic cerebrovascular disease
International Journal of Cerebrovascular Diseases 2012;20(6):468-471
Reactive oxygen species (ROS) caused oxidative stress plays an important role in the occurrence and development of atherosclerosis,and it is associated with the occurrence of ischemic cerebrovaseular diseases.This article reviews the mechanism of action of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase in atherosclerosis and ischemic cerebrovascular disease,and the neuroprotective effects of NADPH oxidase inhibitors.
2.The roles of lipoprotein-associated phospholipase A2 in carotid artery atherosclerosis and ischemic stroke
International Journal of Cerebrovascular Diseases 2010;18(4):282-285
The lipoprotein-associated phospholipase A2 (Lp-PLA2), a subtype of the phospholipase A2 superfamily, is produced primarily by macrophages and lymphocytes. Lp-PLA2specifically hydrolyzes oxidized phospholipids on oxidized low-density lipoprotein particles,resulting in production of lysophosphatidylcholine and oxidized fatty acids. Lp-PLA2 is expressed in atherosclerotic plaques and in macrophages within a fibrous cap of unstable plaque.Studies haw shown that the plasma Lp-PLA2 activity increases significantly in patients with ischemic stroke, and Lp-PLA2 may become an independent risk factor for predicting ischemic cerebrovascular events. The selective Lp-PLA2 inhibitor can reduce the inflammatory response,enhance the stability of plaques, and inhibit the formation of atherosclerotic plaques, and may become a new class of drugs for preventing the formation of atherosclerotic plaques.
3.Correlation between NADPH oxidase p22phox CYBA-A930G polymorphism and hypertensive cerebral hemorrhage in Chinese Han population in Shanghai area
International Journal of Cerebrovascular Diseases 2014;22(10):751-755
Objective To investigate the correlation between the NADPH oxidase p22phox-A930G polymorphism and hypertensive intracerebral hemorrhage in Chinese Han population in Shanghai area.Methods The patients with hypertensive intracerebral hemorrhage and normal controls were enrolled.The polymerase chain reaction and the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) were used to detect the genotypes and alleles of NADPH oxidase p22phox-A930G.Results A total of 128 patients with hypertensive intracerebral hemorrhage and 151 healthy controls were enrolled.The levels of systolic blood pressure,diastolic blood pressure,glucose,and triacylglycerol,as well as the proportions of smoking and alcohol consumption in patients of the hypertensive intracerebral hemorrhage group were significantly higher than those of the control group (all P< 0.05).There were significant differences in AA,AG,and GG genotypes (42.2%,44.5%,and 13.3% vs.63.6%,27.8%,and 8.6%,x2 =12.757,P =0.002) and in A and G allele (64.5% and 35.5% vs.77.5% and 22.5% ;x2 =8.734,P=0.001) frequencies between the hypertensive intracerebral hemorrhage group and the control group.Multivariatelogistic regression analysis showed that systolic blood pressure ≥ 140 mm Hg (1 mm Hg =0.133 kPa) (odds ratio [OR] 13.952,95% confidence interval [CI] 7.242-26.879; P < 0.001),apolipoprotein A ≥ 0.99 mmol/L (OR 3.139,95% CI 1.012-9.733; P =0.048),and AG +GG genotype (OR 2.333,95% CI 1.253-4.342; P=0.008) were the independent risk factors for hypertensive intracerebral hemorrhage.Conclusions Among the Chinese Han population in Shanghai area,the NADPH oxidase p22phox-A930G polymorphism is an independent risk factor for hypertensive intracerebral hemorrhage.
4.Discussion on medical education administration system reform in local comprehensive university
Yongqin ZHOU ; Ding YUAN ; Yun ZHAO
Chinese Journal of Medical Education Research 2013;(6):541-543
This article elaborated on the necessity and importance of reform of medical education administration system in comprehensive university in promoting comprehensive development of medical education,from the point of merging of universities.It also emphasized the long-term nature and complexity of the reform process.In the meantime,it introduced the reform measures and effects of the reform in the author's university.
5.Stem cells from the apical papilla versus periodontal ligament stem cells:biological behaviors
Lu ZHAO ; Li YU ; Ping YUAN ; Chunmei ZHOU ; Peiling WU
Chinese Journal of Tissue Engineering Research 2016;20(1):113-117
BACKGROUND:Stem cels from the apical papila are a new kind of mesenchymal stem cels, and whether it can
be used in root regeneration is the key to the present study. OBJECTIVE:To culture rat stem cels from the apical papila and periodontal ligament stem celsin vitro, and to compare the biology behaviors of these two kinds of cels, thereby providing experimental basis for the application of stem cels from the apical papila in root regeneration. METHODS:The apical papila, as wel as the periodontal ligament tissues from the healthy mandibular teeth of young rats were digested and cultured. Immunophenotypes of stem cels from the apical papila and periodontal ligament stem cels were detected by immunofluorescence technique. Then, cel growth curves were determined by MTT method and mineralized nodule formation was observed by alizarin red staining. RESULTS AND CONCLUSION:Stem cels from the apical papila and periodontal ligament stem cels were both positive for STRO-1. Stem cels from the apical papila were positive for CD90 and weakly positive for CD146. Periodontal ligament stem cels were positive for CD146 and weakly positive for CD90. The absorbance values of stem cels from the apical papila and periodontal ligament stem cels increased with the increasing of time and became stable at 8 days. Since the 4th day, the proliferation capacity of stem cels from the apical papila was significantly stronger than that of periodontal ligament stem cels (P < 0.05). Both of stem cels are visible to have mineralized nodule formation. Compared with the periodontal ligament stem cels, stem cels from the apical papila were stained obviously deeper and had more mineralized nodules. These results show that stem cels from the apical papila have stronger proliferation capacity and mineralization ability than periodontal ligament stem cels. Cite this article:Zhao L, Yu L, Yuan P, Zhou CM, Wu PL.Stem cels from the apical papila versus periodontal ligament stem cels: biological behaviors. Zhongguo Zuzhi Gongcheng Yanjiu. 2016;20(1):113-117.
6.The effect of training method of point-line-plane on development quotient in premature infants with brain injury
Yanran YUAN ; Ruigang ZHOU ; Pingping ZHAO ; Jihong DENG ; Yingwu LIANG
Chinese Journal of Behavioral Medicine and Brain Science 2016;25(12):1100-1103
Objective To evaluated the improving effect of training method of point-line-plane on development quotient in premature infants with brain injury.Methods 174 cases of premature children with brain injury were randomly divided into study group (89 cases) and control group (85 cases).Control group given Bobath and Vojta traditional rehabilitation training,and the study group was given training method of point-line-plane.Patients in both groups were evaluated synthetically based on The Evaluation Chart on Neu-robehavioral Development of Children Aged 0-6 Years,developed by Capital Institute of Pediatrics,prior to the treatment,and after the first,the second,and the third course of the training programs,respectively.Re-sults The score of developmental quotient ( DQ) between study group and control group was no significantly different(P>0.05).Compared with before treatment, the scores of DQ was significantly increased after the first, the second and the third course of training treatment in study group and control group((82.71±12.28) vs (81.17±9.63), t=0.859, P>0.05;(89.65±10.02) vs (87.02±7.39), t=1.747, P>0.05). Compared with the control group, the scores of DQ in study group was no significant difference after the first and the second course of treatment,but there was significantiy different after the third course treatment((95.26±8.87) vs (91.31±7.63), t=2.945, P=0.004).Conclusion The training method of point-line-plane can improve the clinical efficacy of premature infants with brain injury at the early phase, which is worth widely applying in clinical practice.
7.The multiple intervention study on type 2 diabetes in community comprehensive management based on clinical treatment
Bin DONG ; Jiajun YUAN ; Yingxia ZHOU ; Luo LU ; Liebin ZHAO
Chinese Journal of Health Management 2016;10(6):424-428
Objective To evaluate the necessity and practicability of optimizing the management of type 2 diabetes mellitus in community after acquiring the peer education and the music therapy to their physical and mental issues and sleep problems. Methods Totally 179 type 2 diabetes mellitus patients who were followed up in Ruijin 2nd community health service center, the random numbers table used to randomize the patients into 2 groups:control group ( 97 cases) and experiment group ( 96 cases), the conventional treatment was used in control group. Besides the conventional treatment measures, the peer support was used by patients in the experiment group. In the second step, 45 patients were met the inclusion and the exclusion criteria, the random numbers table used to randomize the patients into 2 groups:the multiple intervention group (22 cases) and the conventional treatment group (23 cases), the multiple intervention included the music therapy, the peer support and the sleep health education, the conventional treatment included the conventional treatment and the sleep health education. The t test was used to compare the patient's HbA1c and other quantitative data in two groups of patients after the intervention. Results In the first stage of research, compared with the control group patients, the patients 'HbA1c in intervention group was significantly improvement after 6 months(7.26%±1.37%vs.7.53%±1.63%,t=2.148, P<0.05),besides, the intervention group individuals achieved significant improvement in diabetic self-management behaviors and self-efficacy after 6 months, and the improvement in self-efficacy of peer support group was significant different compared with routinely educated patients(104.09±16.40 vs.110.96± 13.86,t=2.120,P<0.05), and the PHQ-9(5.95 ± 4.02 vs.2.55 ± 1.67,t=2.630,P<0.05)between the two group had significant difference, while no improvement was found in PSQI, BMI, and WHR between intervention group and control group. Conclusions Peer support could improve the blood glucose metabolism in patients with type 2 diabetes. With the effect of yoga music and physical exercises, peer support can improve the quality of sleep and decrease depression in T2DM patients, who also have sleep disorders and mild depression.
8.Cytokines expression and significance in the peripheral blood from mice with temporal lobe epileptic in the acute phase
Yuan ZHOU ; Lide JIN ; Min ZHAO ; Xia CAO ; Xiying QIAN
Chinese Journal of Nervous and Mental Diseases 2016;42(1):11-14
Objective To study the expression changes of IL-1β、FN-α6、IFN-γ and TNFR-m18 in peripheral blood within 2 hours in epileptic mice. Methods Semi quantitative real-time PCR was used to test the mRNA expres?sion level of IL-1β、FN-α6、IFN-γand TNFR-m18 in peripheral blood from normal and pilocarpine-induced epileptic mice at different time points (10 min, 30 min, 1 h and 2 h). Results The mRNA expression level of IL-1βincreased at 30 min(1.8±0.07), 1 h(2.9±0.98)and 2 h(1.45±0.11)after pilocarpine-induced status epilepticus comparing with that of control and SE 10 min(0.81±0.09)(P<0.05). The IFN-α6 mRNA expression level was lower at 10 min(0.59±0.05, P<0.05) than that of control. IFN-γmRNA expression level was higher at 10 min(2.85±0.11) than that of control and at oth?er time points during SE(P<0.01). TNFR-m18 mRNA expression level was higher at 1h(2.84±0.15) than that of control, and at other time points during SE(P<0.01). Conclusion The immune system of epileptic state is active, the imbalance of cytokine expression in peripheral blood may be related to the immune pathological process of acute stage of epilepsy.
9.Gastrin promotes the proliferation and angiogenesis of human umbilical vascular endothelial cell
Dongmei WANG ; Jianjiang ZHOU ; Yuan XIE ; Yan ZHAO
Chinese Journal of Endocrinology and Metabolism 2013;29(7):598-602
Objective To study the effect of gastrin on the proliferation and angiogenesis of human umbilical vascular endothelial (HUVE) cell in vitro.Methods The immunocytochemistry assay,realtime-PCR,and Western blot were used to detect the gastrin receptor (CCK-BR) expression in HUVE cells.After HUVE cells were treated with 10 and 100 nmol/L gastrin for 72 h,MTT and soft agar colony formation assay were used to test the cell proliferation rate and colony formation rate,and the vascular-like structures were observed by three-dimensional culture of HUVE cells.The half-ring and ring vascular numbers were counted with five random visions.The vascular endothelial growth factor (VEGF) and hypoxia-inducible factor-1a (HIF-1a) mRNA and protein levels in HUVE cells were detected by realtime PCR and ELISA assay respectively.Results HUVE cells expressed CCK-BR.After the treatment with 10 and 100 nmol/L gastrin,the cell proliferation rate was increased by 48.48% and 82.82 % compared to the control group,and colony formation rate was increased to 31.33% and 45.67 % as compared with 15.33% in the control group(P<0.01).Relative expression quantities of VEGF and HIF-1a genes were 2.3 and 4.6 folds (VEGF) and 20.76 and 26.77 folds (HIF-1 a) than those in the control group.The concentration of VEGF protein in culture medium was 221 and 392 μg/mg protein higher than that in control group.The numbers of half-ring and ring vascular structures were (14.00 ± 3.00,39.33 ± 7.57 and 34.33 ± 4.50)/vision and (8.33 ± 2.51,41.33 ± 5.85 and 37.67 ± 3.51)/vision in control,10 and 100 nmol/L gastrin-treated groups,respectively (P<0.01).Conclusion Gastrin up-regulates the expression of VEGF and HIF-1a genes in HUVE cells and promotes cell proliferation and vascular-like structure formation of HUVE cells in vitro by being combined to CCK-BR,which may be involved in the development and metastasis of gastric cancer.
10.Factors related to the therapeutic efficacy of 131 Ⅰ in Graves' disease
Xinjian ZHOU ; Yuan ZHAO ; Yulian ZHU ; Yingchun ZHU ; Lai WEI
Chinese Journal of Endocrinology and Metabolism 2011;27(12):975-978
ObjectiveTo explore the efficacy of 131 Ⅰ treatment in Graves' disease,and to analyze the related factors.MethodIn 87 patients with Graves' disease,thyroid uptake ratio( TUR ) and its effective half-life(EHL) were compared before and after 131 Ⅰ treatment.The weight of thyroid gland was evaluated with radio-imaging and type B ultrasonography.ResultThe dose of 131 Ⅰ was ( 185.2 ± 148.0 ) MBq.The TUR of tracer dose and therapeutic 131 Ⅰ dose were 76.5 % ±8.2% and 73.3 % ±9.0% ( t =2.451,P =0.008 ).The EHL were ( 5.2±0.7 ) and ( 5.0 ±0.8 )days,respectively ( t =1.998,P =0.023 ).After followe-up of ( 57.0 ±26.3 ) months,49 patients ( 56.3 % ) became euthyroid,14 ( 16.1% )manifested delayed hypothyroidism,and 24 (27.6%)remained in hyperthyroidism.Thyroid autoantibodies were found in 34.5% patients,of whom,the incidence of hypothyroidism was higher in patients with positive autoantibodies than those with negative ones (30.0% vs 8.8%,x2 =6.560,P =0.009 ).ConclusionBoth TUR and EHL of therapeutic doses of 131 Ⅰ are lower than the tracer doses.Positive thyroid autoantibodies may affect the outcome of the 131 Ⅰ treatment.