1. Optimization of inclusion technology for clove oil with β-cyclodextrin polymer microsphere by uniform design
Chinese Traditional and Herbal Drugs 2010;41(12):1973-1977
Objective: To study the optimized technology of inclusion for the volatile oil of Caryophylli Flos with β-cyclodextrin polymer (β-CDP) microsphere. Methods β-CDP Microsphere was prepared by saturated peroxide solution. The study was carried out with uniform design to optimize the best inclusion processing conditions and inclusion compound was to characterize its structure. Results The best condition of the optimized technology of inclusion for the volatile oil of Caryophylli Flos with β-CDP microsphene was as follow: the volatile oil of Caryophylli Flos (mL)-β-CDP microsphere (g) was 1:1; inclusion temperature was 35°C; clathration time was 1 h; ethyl alcohol could be ignored. The package method is successful by characterizing structure. Conclusion: The inclusion compound of β-CDP has high rate and the inclusion process is reasonable and feasible.
2.Protective effects of N-acetylcystine on pulmonary microvascular permeability of lung injury in dog after cardiopulmonary bypass
Haihui XIE ; Miao CHEN ; Xianfeng QU ; Zhaoqiong ZHU ; Zhihao YU
Chinese Journal of Emergency Medicine 2008;17(12):1271-1274
Objective To evaluate the protective effect on the pulmonary micmvascolar permeability and thereby to ameliorate the lungs injury attributed to cardiopuimonary bypass(CPB).Method Twenty-four adult hybrid health dogs were randomly divided into three groups(8 in each group):group C(normal saline given after CPB),group N1(NAC given intravenously just before CPB)and group N2(NAC given just after CPB).The changes of respiratory index(RI)and malondialdehyde(MDA)content in lung tissue were observed.Samples were taken three times,before CPB(T0),30 min after CPB surned off(T1)and 60 min after CPB sumed off(T2).The leucocyte count and slbumin content in bronchoalveolar lavage fluid(BAlF),the pulmonary micmvascular permeability index(PMPI),and the histological changes of lung under light microscope and electromicroscope in 3 groups were examined.Results No significant differences were found in the levels of Ri and MDA content of lung tissue between groups before CPB.However,they gradually reduced after CPB(P<0.05)in the three groups,but they still were significantly lower in group N1 and group N2 compared with those in group C at,T1 and T2(P<0.05)and those in group N1 were significantly lowere than those in group N2 at T1 and T2(P<0.05).MDA gradually increased after CPB in three groups(P<0.05),but it was still significantly lower in group N1 and group N2 than that in group C at T1 and T2(P<0.05).The leucocyte count and albumin content in BALF were significantly lower in group N1 and group N2 in comparison with those in group C(P<0.05)and they were significantly lower in group N1 compared with those in group N2(P<0.05).The PMPI were significantly lower in group N1 and sroup N2 compared with those in group C(P<0.05)and they were significantly lower in group N1 compared with those in group N2(P<0.05).By using electromicroscope,the apparent inflammatory change of lung with endothelium cellular swelling,inter-endothelial cells spaces widened,and the indistinctness,deformation or decurtation of microfilarnent were observed.And the dissolution of laminated body,swollen mitochondria and plasmolysis were found in alveolar epithelial cell Ⅱ in group C.However,these changes were markedly alleviated in group N2 and group N1.Conclusions The results clearly demonstrate that NAC could protectie effect on the CPB injured lung and reduce the pulmonary microvascalar permeability,and the protetive effect is better in group N1 than that in group N2.
3.Effect of ribosomal protein S3 Ser209 on NF-κB transcriptional activity and its DNA binding capacity
Hengxi GUO ; Hui CHEN ; Yiqun ZHAN ; Miao YU ; Xiaoming YANG
Military Medical Sciences 2015;(2):117-122
Objective To construct expression vectors of human ribosomal protein S 3(RPS3) and RPS3Ser209 mutant in orcler to investigate the effect of RPS3Ser209 mutant on NF-κB signaling pathway and DNA binding capacity .Methods The vector RPS3-myc was amplified by polymerase chain reaction ( PCR) from the human liver cDNA and subcloned into pcDNA-3.1myc-HisB.RPS3S209A represented mutant RPS3 expression vectors, in which the designated amino acid was mutated to an alanine residue .Dual luciferase reporter gene assay was used to detect the NF-κB transcription activity in HEK293 cells,immunofluorescence to detect RPS3 location, and EMSA to examine NF-κB DNA-binding activity.Results The expression vectors of RPS3-myc and RPS3S209A-myc were constructed.Compared with wild-type RPS3,the nucleus translocation, transactivation activity of NF-κB and DNA binding ability of RPS3S290A were reduced significantly .Conclu-sion The impact of RPS3 on NF-κB signaling pathway depend on its serine 209.
4.Primary study on glutathione and glutathione-related enzymes of Antarctic ice microalgae
Zhou ZHENG ; Jinlai MIAO ; Hao CHEN ; Yu DIND
Chinese Journal of Marine Drugs 1994;0(01):-
Objective To study on glutathione and glutathione-related enzymes of Antarctic ice microalgae.Methods Glutathione(GSH) content,glutathione produce ability(GPA) and glutathione reductase(GR) activity in 24 kinds of Antarctic ice microalgae were assessed using the spectrophotometer methods.Results GSH content of Cyanophyceae B-1 was highest.Total GSH yields of Antarctic ice microalgae Chlamydomonas sp.ICE-L and Berkeleya rutilans GJ01 were in the top two positions.GPA in most Antarctic ice microalgae was higher than that in mesophilic green algae,and only in two ice microalgae was lower than that in Phaeodactylum tricornutum.GR activities of Antarctic ice microalgae Berkeleya rutilans GJ01 and Chlamydomonas sp.ICE-L were greater than that of the control microalgae.Conclusion It is possible that Antarctic ice microalgae will become a new resource of GSH.
5.Correlation of video fluoroscopic swallowing study and clinical swallowing function of patients with post-stroke dysphagia
Miao CHEN ; Mei YU ; Jianping HUANG ; Wenzong ZHU ; Yinghao ZHI
Chinese Journal of Cerebrovascular Diseases 2014;(12):643-649
Objective To investigate the correlation between clinical presentations and the findings of video fluoroscopic swallowing study (VFSS)in patients with post-stroke dysphagia. Methods A total of 56 consecutive patients with post-stroke dysphagia admitted to Wenzhou Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University from June 2012 to May 2014 were enrolled. Four different kinds of food were selectively used to complete clinical assessment of swallowing function and VFSS respectively. The SPSS 20. 0 statistical software was used to perform univariate and multivariate Logistic regression analyses for all observed indexes of the 2 methods. Results there were significant correlations in the point correspondence relation among the clinical manifestations and VFSS in food residue in the mouth and abnormal closure of lips in the oral phase (95%CI 1. 430-101. 468;P=0. 022);poor soft palate elevation and food residue in the mouth (95%CI 1. 476-102. 033;P=0. 020);graded swallowing and piecemeal deglutition with delayed oral transit (95% CI 2. 616 -182. 897;P = 0. 004);tongue movement disorders,poor soft palate elevation and tongue dyskinesia with poor bolus formation (95%CI 1. 468-50. 795,1. 220-13. 825;P=0. 017,0. 023);food leak from the corner of mouth,dysphagia,bolus falling to the epiglottis from the base of tongue or trachea (95%CI 1. 146-125. 459,1. 657-174. 400;P=0.038,0. 017). The weakened pharyngeal reflex with weak laryngeal elevation in the pharyngeal phase (95%CI 1. 150-92. 815;P =0. 037);dysphagia and delayed swallowing with prolonged triggering of swallowing reflex (95%CI 2. 123-37. 770,1. 233-114. 176;P=0. 003,0. 032);graded swallowing,hard swallowing, choking sensation,and poor laryngeal elevation with prolonged pharyngeal transit (95%CI 1. 619-223. 316,1. 061-31. 445,2. 834 -132. 707;P =0. 019,0. 042,and 0. 003);dysphagia and the opening of cricopharyngeal muscle insufficiency (95%CI 1. 037 -24. 115;P =0. 045);weak laryngeal elevation,foreign body sensation in the throat,and choking after swallowing with food retention or residual in vallecula or pyriform sinus (95%CI 1. 046 -13. 685,1. 116 -87. 741;P =0. 043, 0.040);and coughing during swallowing and eating choking or aspiration (95%CI 0. 010-0. 921,0. 037-0. 826;P=0. 042,0. 028). Conclusion Some clinical manifestations are closely correlated with the swallowing dysfunction revealed by VFSS. With the help of this law,it may more simply and safely determine the degree and type of dysphagia in patients,and provide guidance for patients with dysphagia after stroke who can not accept VFSS in the rehabilitation treatment.
6.Hepassocin (HPS)-a new serum biomarker of liver injury in mice
Huali ZHAI ; Hui CHEN ; Yiqun ZHAN ; Xiaoming YANG ; Miao YU
Military Medical Sciences 2015;(7):489-494
Objective Acute liver failure is one of the significant causes of death clinically.It is important to explore new serum markers of liver injury for early diagnosis and prognosis prediction of severe liver disease.Hepassocin ( HPS) is a liver-specific mitogenic growth factor.Our study is intended to investigate the correlation between HPS serum levels and the degree of liver injury.Methods Firstly, a mouse model of acute liver injury was constructed via intraperitoneally injection with different doses of CCl4 .Then the survival rate, alanine aminotransferase ( ALT) , aspartate aminotransferase ( AST) and the pathological changes in the liver were detected.Meanwhile, ELISA assay was performed to detect the serum level of HPS.In addition, the mRNA level and protein level of HPS were detected by real-time PCR and Western blotting, respectively.Results The mortality rate was increased and the liver damage was aggravated with the increase of the CCl4 dose.Besides, the ALT and AST levels were also increased in a dose-dependent manner.Additionally, the mRNA and protein levels of HPS were significantly up-regulated and closely related to the degree of the liver injury in the model. Conclusion HPS can be used as a new marker of liver injury in mice.
7.Correlation analysis between the sagittal and coronal parameters of spino-pelvic in Lenke type 1 adolescent idiopathic scoliosis
Panpan HU ; Miao YU ; Xiaoguang LIU ; Zhongqiang CHEN ; Zhongjun LIU
Journal of Peking University(Health Sciences) 2015;(2):248-252
Objective:To explore the relationship between spino-pelvic sagittal and coronal parameters in Lenke 1 group of adolescent idiopathic scoliosis (AIS).Methods:The subjects were retrospectively col-lected from 2005 to 2013.On the posteroanterior and lateral radiographs, apical vertebra ( AV) , Cobb an-gle of main thoracic curve (MT), pelvic incidence (PI), C7 translation ratio (C7TR) and other sagittal parameters were measured and recorded.Comparison and correlation studies were conducted between these parameters using specific softwares.Results: In the study, 51 subjects, including 18 males and 33 fe-males, were recruited, aged (14.9 ±2.0) years averagely.The apical vertebra ranged from T7 to T11,with mean MT being 49.6闭±16.7闭, and mean PI 44.7°±6.7°.Significant correlation existed between PI and PT, SS, LL, as well as between LL and SS, TK ( P <0.05) .Significant differences were found in TK, LL and SS among the different LM groups, but no difference in the other sagittal parameters.AV had no significant correlation with any sagittal parameter.MT was significantly correlated with TK, LL and SS, but its correlation with PI was not significant.Conclusion:Most of sagittal parameters were significantly corre-lated in Lenke 1 adolescent idiopathic scoliosis, forming a regulation chain of spine-pelvic sagittal balance on the basis of PI.Significant correlation exists between some sagittal and coronal parameters.
8.Effects of Extracorporeal Shock Wave on Spasticity of Biceps Brachii after Stroke
Siwei XU ; Yun MIAO ; Yanyan YU ; Qiang QU ; Wenhua CHEN
Chinese Journal of Rehabilitation Theory and Practice 2014;20(12):1140-1143
Objective To observe the effects of extracorporeal shock wave therapy (ESWT) on spasticity of biceps brachii after stroke. Methods 12 patients with spasticity of biceps brachii after stroke were divided into control group (n=6) and ESWT group (n=6). The ESWT group received a session of ESWT and the control group received placebo treatment. All patients were assessed before and immediately after treatment, including integrated electromyogram (iEMG) and co-contraction ratio during maximum isometric voluntary contraction (MIVC) of elbow extension with surface electromyography, the modified Ashworth Scale (MAS) and content of shoulder and elbow of Fugl-Meyer Assessment (FMA). Results The scores of MAS and FMA, the iEMG and the cocontraction ratio of biceps brachii improved in the ESWT group after the treatment (P<0.05), and improved more than those in the control group (P<0.05). Conclusion ESWT can immediately relieve the spasticity of biceps brachii, inhibit the cocontraction of biceps brachii during elbow extension and improve the motor function of upper limb in patients post stroke.
9.Correlation between Extended High-frequency Threshold and Distortion Product Evoked Oto Acoustic Emissions Amplitudes
Yan MIAO ; Rong SONG ; Limei YU ; Yiqing CHEN ; Yang ZHANG
Chinese Journal of Rehabilitation Theory and Practice 2012;18(8):701-703
Objective To investigate the correlation between extended high-frequency audiometry and distortion product oto acousticemissions (DPOAE) amplitudes. Methods 60 normal hearing people aged 20~40 years were examined with extended high-frequency audiometry and DPOAE. Results Extended high frequency thresholds negatively correlated to DPOAE. Conclusion There is correlation between these two methods, and they can be used for early creening and diagnosis of hearing loss.
10.The cytotoxicity of IL-24 gene-modified CIK cells to HL-60 cells
Wei XIA ; Xin YU ; Punan WANG ; Hongwei XU ; Yu CHEN ; Huaxin XI ; Jicheng YANG ; Jingcheng MIAO
Chinese Journal of Immunology 2009;25(12):1080-1084
Objective:To study the antitumor effect and mechanism of cocultured CIK cells modified with IL-24 gene and autologous DCs on HL-60 cells in vitro.Methods:DCs and CIK cells were prepared routinely from human peripheral blood mononuclear cells ( PBMC).IL-24 gene was transferred into CIK cells via electroporation.The cells obtained were named CIK-IL24.RT-PCR and ELISA were used to evaluate expression of IL-24 gene in transfected CIK cells.The phenotypic changes of CIK cells were identified by flowcytometry analysis.The concentration of IFN-γ and TNF-α in supernatant of CIK was determined by ELISA.FCM was used to determine the cytotoxicity of cocultured CIK cells modified with IL-24 gene and autologous DCs against HL-60 cells.Results:Eukaryotic expressing plasmid pcDNA3.0-IL24 was transferred into CIK cells successfully via electroporation.The expressing rate of CD3~+、CD3~+CD56~+ cells had no significant change in CIK cells.However,the rate of CD4~+CD25~+ cells was significantly decreased compared with that of the control group.Expression of adhesion molecules CD54,CXCR4 were significantly increased on CD3+CD56+ cells.CIK-IL24 cells produced markedly higher levels of IFN-γ and TNF-α as compared with the CIK cells.By comparison with non-transfected CIK cells co-cultured with DCs,transfected CIK cells co-cultured with DCs had a significantly higher lytic activity against HL-60 cells.Conclusion:IL-24 gene modification can enhance the anti-tumoral immunity of CIK cells,the mechanism of which might be related to the increased secretion of IFN-γ,TNF-α,up-regulation of adhesion molecule expression,and reduction of the rate of CD4~+CD25~+ cells in CIK cells.