1.Effects of gender on post-stroke aphasia
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(08):-
70 years old)(P
3.Preparation of nimodipine-loaded PLEG copolymer nanoparticles and quality evaluation
Ying FAN ; Chen ZHOU ; Wen-Sheng LIU ;
Chinese Journal of Primary Medicine and Pharmacy 2005;0(11):-
Objective To improve the poor water-solubility of nimodipine,nimodipine-loaded PLEG copoly- met nanopartieles were prepared to avoid the sedimentation of its crystal from water,which could also shun the blood vessel stimulation caused by ethanol,a cosolvent,in the injection.Methods Solvent evaporation method was used to prepare water-dispersing nimodipine-loaded nanoparticles,whose lyophilized powder was further prepared,with PLEG2000 as drug carrier.Particle size,Zeta potential,embedding ratio,drug loading,shape and redispersion ability of the lyophilized powder were determined.Results Concerning the lyophilized nanoparticle powders,the particle sizes were 136nm,the Zeta potentials were -29.90mV,the embedding ratio was 67.9% and the drug loading was 6.17%.Conclusion Prepared nimodipine-loaded nanoparticles solved the problem of poor water-solubility of ni- modipine basically.It also avoided the recrystallization process of the drug and reduced the blood vessel stimulation caused by ethanol in the injection.
4.Combination of penetrating keratoplasty, cataract extraction and intraocular lenses implantation
Minjie SHENG ; Yiren ZHENG ; Anjuan LIN ; Ying CHEN ; Huixin CHEN ; Moqin WANG ; Chen QU ; Yufeng GUAN
Recent Advances in Ophthalmology 2000;20(6):407-409
Objective To observe the therapeutic effect of combination of penetrating keratoplasty, cataract extraction and intraocular lenses implantation.Methods Penetrating keratoplasty was performed simultaneously with cataract extraction and intraocular lenses implantation on 134 cases. Results One hundred and twenty cases were recorded after following up for 0.5~12 years. Ninety-nine cases (82.5%)of the corneas remained clear. Twenty-one cases (17.5%)of the corneas failed.Ninety-two cases (76.7%)achieved a better visual acuity postoperatively.Eighty-nine eyes(74.2%)were not blind any longer. Conclusion The combination of penetrating keratoplasty, cataract extraction and intraocular lenses implantation offers advantages of rapid and better rehabilitation of visual acuity with low complication rate.
5.Significance of Serum Growth Hormone-Binding Protein Detection in Children with Idiopathic Short Stature
li, CHEN ; sheng-xia, XIANG ; xiao-qing, CHEN ; ying-li, YANG
Journal of Applied Clinical Pediatrics 2006;0(20):-
Objective To explore the change of growth hormone binding protein (GHBP) in children with idiopathic short stature(ISS).Methods Thirty children with ISS from the pediatric department in the Third Hospital of Hebei Medical University and 30 age-and sex-matched normal-stature children were selected from Sep.2006 to Jun.2008.The concentration of GHBP was measured by enzyme linked immunosordent assay.Results Serum GHBP levels in ISS subjects was (3 261.0?646.3) ?g/L,while the serum GHBP levels in normal control group was (2 026.0?497.2) ?g/L,and there was statistically significant difference between both groups(t=-20.67 P
6.Co-Immobilization of Permeabilized Meiothermus sp.Cells Containing Trehalose Synthase
Jun ZHANG ; Ying CHEN ; Xiao-Yun CHEN ; Xin QI ; Xue-Sheng WEI ;
China Biotechnology 2006;0(11):-
Permeabilized cells containing trehalose synthase from Meiothermus sp.CBS-01 was immobilized by the integration of entrapment in alginate beads with cross-linking and electrostatic self-assembly coating technique.Coating on alginate beads with diazo-resin and poly(styrene sulfonate) can protect the beads from degradation in phosphate buffer,whereas cross-linking with carbodiimide improves the thermostability of trehalose synthase entrapped in alginate beads.By co-immobilization of permeabilized cells using entrapment-cross-linking- coating method,the enzyme recovery was 32%,and the optimum temperature of the enzyme was still 60℃,but the optimum pH was shifted from 6.5 to 7.In batch manner,a maximum conversion yield of 60% trehalose from maltose could be reached by the immobilized cells.Within 4 times repeated use of the immobilized cells,and each time was operated at 50℃ for 24h,more than 50% conversion yield of trehalose could be maintained with less than 20% loss of the enzyme activity.
7.Enhancing the accumulation of beta-amyrin in Saccharomyces cerevisiae by co-expression of Glycyrrhiza uralensis squalene synthase 1 and beta-amyrin synthase genes.
Ying LIU ; Hong-Hao CHEN ; Hao WEN ; Ya GAO ; Li-Qiang WANG ; Chun-Sheng LIU
Acta Pharmaceutica Sinica 2014;49(5):734-741
Glycyrrhiza uralensis Fisch. ex DC is widely used in traditional Chinese medicine (TCM). Among its various active components, glycyrrhizic acid is believed to be the marker component. Squalene synthase (SQS) and beta-amyrin synthase (beta-AS) are key enzymes in the biosynthetic pathway of glycyrrhizic acid in G uralensis. To reveal the effects of co-expression of SQS1 and beta-AS genes on this pathway, 7 yeast expression vectors harboring different SQS1 variants and beta-AS were constructed and expressed in Saccharomyces cerevisiae as fusion proteins. TLC and GC-MS results showed that co-expression of SQS1 and beta-AS enhanced the accumulation of beta-amyrin. The effects of SQS12 were more obvious than the other two SQS1 variants. This study is significant for further investigations concerned with exploring the biosynthesis of glycyrrhizic acid in vitro and strengthening the efficacy of G. uralensis by means of increasing the content of glycyrrhizic acid.
Farnesyl-Diphosphate Farnesyltransferase
;
genetics
;
metabolism
;
Glycyrrhiza uralensis
;
genetics
;
Intramolecular Transferases
;
metabolism
;
Oleanolic Acid
;
analogs & derivatives
;
metabolism
;
Plant Proteins
;
genetics
;
Recombinant Proteins
;
metabolism
;
Saccharomyces cerevisiae
;
metabolism
8.Clinical randomized controlled trials of acupoint catgut-embedding for simple obesity: a meta-analysis.
Jian-Qiong LIAO ; Xiang SONG ; Ying CHEN ; Li-Chang LIANG ; Sheng-Xu WANG
Chinese Acupuncture & Moxibustion 2014;34(6):621-626
The clinical therapeutic effect of acupoint catgut-embedding for simple obesity was systemically analyzed to provide reference and assistance for its clinical treatment and research. By searching in the CBM, CNKI, VIP, Wanfang, Pubmed, Springer and Medline databases, clinical randomized controlled trials (RCT) of acupoint catgut-embedding for simple obesity published from Jan, 2009 to July, 2013 were collected while Revman 5. 2 software was applied to perform the Meta-analysis. Totally 19 articles were acquired with 1 658 cases involved. The effective rate was selected as primary outcome measure in 19 articles. The Meta-analysis was performed among homogeneous researches. The results indicated that compared with other therapies, pooled OR of acupoint catgut-embedding was 2.45 with 95% CI [1.81, 3.32]; in the test for overall effect, Z = 5.81, implying the efficacy difference of two therapies was significant in the treatment of simple obesity (P < 0.01). In subgroups analysis, in the event of treatment session with more than 3 months, compared with other therapies, pooled OR of acupoint catgut-embedding was 2.61 with 95% CI [1.53, 4.46]; in test for overall effect, Z = 3.51, implying the efficacy difference of two therapies was significant in the treatment of simple obesity (P < 0.01); in the event of treatment session with less than 3 months, compared with other therapies, pooled OR of acupoint catgut-embedding was 2.38 with 95% CI [1.65, 3.44]; in test for overall effect, Z = 4.46, implying in the treatment of simple obesity the efficacy difference of two therapies was significant (P < 0.01). Compared with electroacupuncture, OR of acupoint catgut-embedding was 1.79, 95% CI [1.08, 2.95] (P = 0.02). Compared with acupuncture, OR of acupoint catgut-embedding was 1.89, 95% CI [1.16, 3.09] (P = 0.01), which explained that compared with electroacupuncture and acupuncture, the efficacy of acupoint catgut-embedding was significantly different. In a word, the clinical efficacy of acupoint catgut-embedding is superior to other therapies in the treatment of simple obesity.
Acupuncture Points
;
Acupuncture Therapy
;
Catgut
;
Electroacupuncture
;
Humans
;
Obesity
;
therapy
;
Randomized Controlled Trials as Topic
9.Mechanism of tanshinone II A in inhibiting transformation of aortic valvular myofibroblast to osteoblast-like phenotype.
Ying-nian SHEN ; Wei-lin HU ; Zheng-ping CHEN ; Li CAI ; Yong-sheng LI
China Journal of Chinese Materia Medica 2015;40(18):3636-3643
Aortic valve calcification (AVC) is a pathological process correlated with multiple disease causes and actively regulated by cardiac valve cells. In this study, porcine aortic valve myofibroblasts cultured in vitro were treated with 50 μg z L(-1) of pathological factor tumor necrosis factor α (TNF-α). Tanshinone II A (TSN) with the concentration of 50 mg x L(-1) and TNF-α were combined in incubating cells for 72 h (3 d) and 120 h (5 d). The Western blotting and Real-time PCR were adopted to detect the changes in smooth muscle α actin (α-SMA), bone morphogenetic protein 2 ( BMP2), alkaline phosphatase (ALP) in cells, and expressions of key effect proteins GSK-3β and β-catenin on Wnt/β-catenin signal pathway. According to the findings, TNF-α can significantly increase the expression of myofibroblasts α-SMA and add the transformation activity to them, with nearly no expression of BMP2, ALP and mRNA in the control group and the TSN group but significant increase in their expressions in the TNF-α group (P < 0.01), which showed osteoblast-like phenotype. Moreover, TNF-α down-regulated the expression of up-streaming regulator GSK-3β and mRNA expression (P < 0. 01) , notably increased the expression of key effect protein β-catenin, but with no significant difference in mRNA with the control group and the TSN group. The result demonstrated that TSN showed a certain inhibitory effect on TNF-α's pathological impact (P < 0.05) in a time-dependent manner. Inflammatory factor TNF-α may promote the transformation of aortic valvular myofibroblasts to osteoblast-like phenotype by activating Wnt/β-catenin signal pathway in aortic valvular myofibroblasts, so as to cause AVC. Tanshinone II A can have a preventive effect in AVC by activating GSK-3β proteins and regulating signal transduction of Wnt/β-catenin signal pathway.
Animals
;
Aortic Valve
;
cytology
;
drug effects
;
metabolism
;
Cells, Cultured
;
Diterpenes, Abietane
;
pharmacology
;
Drugs, Chinese Herbal
;
pharmacology
;
Glycogen Synthase Kinase 3
;
genetics
;
metabolism
;
Glycogen Synthase Kinase 3 beta
;
Myofibroblasts
;
cytology
;
drug effects
;
metabolism
;
Osteoblasts
;
cytology
;
drug effects
;
metabolism
;
Swine
;
Tumor Necrosis Factor-alpha
;
genetics
;
metabolism
;
beta Catenin
;
genetics
;
metabolism
10.Clinical Observation of Warm Needling plus Herbal Medicine for Ocular Myasthenia Gravis
Zhaoyuan SHENG ; Gang CHEN ; Zhihai HU ; Rujiong YING ; Miaoqing YU ; Genghe LI
Shanghai Journal of Acupuncture and Moxibustion 2015;(6):540-542
Objective To compare the therapeutic efficacy between warm needling and Pyridostigmine bromide in treating ocular myasthenia gravis, for seeking the optimal treatment method. Method Seventy patients with ocular myasthenia gravis were randomized into a treatment group intervened by warm needling and control group intervened by Pyridostingmine bromide, 35 in each group; meanwhile, fortified Yi Qi Tang decoction was given to both groups. The observation lasted 6 weeks and a 3-month follow-up was conducted. The clinical absolute and relative scoring system for myasthenia gravis, and the Chinese medicine syndrome scale for spleen-qi deficiency were adopted for quantitative comparison and efficacy evaluation. Result The total effective rate was 85.7% in the treatment group, higher than that in the control group. Conclusion Warm needling plus herbal medicine is effective in treating ocular myasthenia gravis.