2.Nerve growth factor and leukemia inhibitory factor upregulate the expression of IL-4 and IL-5 in lymphocytes of asthmatic rats
Yan TANG ; Minjuan LIN ; Weifeng ZOU
Chinese Journal of Pathophysiology 1989;0(05):-
AIM:To investigate the role of nerve growth factor (NGF) and leukemia inhibitory factor (LIF) in the expression of IL-4 and IL-5 in the splenic lymphocytes of asthmatic rats. METHODS:Sixteen Sprague-Dawley rats were randomly divided into two groups:control group (n = 8) and asthma group (n = 8). The asthmatic model was set up by intraperitoneal injection of 100 mg ovalbumin and 100 mg aluminum hydroxide,and receiving nebulization aspiration of 1% ovalbumin solution 2 weeks later. The splenic lymphocytes from the control rats and asthmatic rats were isolated and cultured with exogenous NGF or LIF at different doses. The mRNA expression of IL-4 and IL-5 in the splenic lymphocytes was respectively detected by reverse transcription-polymerase chain reaction (RT-PCR). The secretions of IL-4 and IL-5 were respectively detected by ELISA. RESULTS:Compared to control group,the expression of IL-4 and IL -5 (P
3.Study on plasminogen and BDNF expression in the hippocampus of depression rat mode and its relationship
Zhixiong LIN ; Jingwen YIN ; Junding XIAN ; Haifeng YAN ; Xiaobo ZOU
Chongqing Medicine 2016;45(9):1170-1172
Objective To study on the relationship between plasminogen and brain-derived neurotrophic factor(BDNF),and explain the molecular mechanism of depression ,then provide new clew for diagnosis and treatment of depression .Methods The chronic unpredictable mild depression rat mode was established ,then depression symptoms including absence of delight ,the decline of actions and activities ,and weight reduction of rat were tested .The levels of individual plasminogen and BDNF in hippocampus were determined by Western blot .Results The expression of BDNF and plasminogen in depression rat mode and control group was significantly different(P<0 .01) ,and there was a positive correlation between BDNF and plasminogen(r=0 .65 ,P<0 .01) .Accord-ing to the linear-regression analysis ,there was a dependence relationship between them(r2 =0 .423) .The equation of regression was YBDNF=0 .750XPlasminogen +0 .201 .Conclusion Stress could affect the growth and survival of nerve cell ,which lead to the depression behavior of rats ,meanwhile ,the decline of plasminogen and BDNF levels ,the positive correlation between them illustrate that plas-minogen and BDNF take part in the mechanism of depression .
4.Practice and exploration of virtual simulation tutoring system in standardized residency training of dentistry
Yan ZOU ; Zisheng TANG ; Danying TAO ; Weiqiang YU ; Yuhua LIN ; Xiaolei YAN ; Yan LIU
Chinese Journal of Medical Education Research 2021;20(3):319-322
In this study, the virtual simulation tutoring system was applied to the teaching of dental residents in the standardized training stage for the first time, including the curriculum preparation, curriculum design and teaching practice. Through the practice of the preparation of class Ⅱ holes and the tooth preparation of PFM (porcelain fused to metal) by the dental residents in the virtual simulation teaching system, the teaching arrangement of three courses as one term was explored. Each course adopted the matching interactive teaching mode. Finally, the transcripts would be given by the virtual simulation teaching system to comment and summarize. This study has laid a foundation for future promotion of virtual simulation teaching system in the standardized training stage of stomatology residents and found a new direction for improving the proficiency and accuracy of residents' clinical operation skills.
5.Preliminary application of intelligent three-dimensional ultrasound imaging of fetal cranial mid-sagittal view
Yan YI ; Yi XIONG ; Qi LIN ; Yang JIAO ; Jinfeng XU ; Yaoxian ZOU ; Muqing LIN
Chinese Journal of Ultrasonography 2015;24(3):246-248
Objective To describe an intelligent three-dimensional technique for automatic visualization of the fetal cranial mid-sagittal view to allow for the differential diagnosis of fetal midline anomalies.Methods Two hundred and twenty pregnant women with singleton pregnancies were imaged to display the mid-sagittal view of fetal head using a new 3D program (Smart MSP) developed by our team.Results The mid-sagittal view of the fetal head was successfully visualized in 190 normal cases (95%) and 18 abnormal cases (90%) by Smart MSP program.The total successful rate was 94.5% (208/220).Conclusions Smart MSP is a novel and feasible method for the automatic visualization of fetal cranial midsagittal plane and may become a potential tool for routinely screening the fetal midline anomalies.
6.Research on the common carotid artery wall of patients with type 2 diabetic by velocity vector imaging
Chunpeng ZOU ; Pintong HUANG ; Yan JIAO ; Huipei JIN ; Yan YANG ; Lin CHEN
Chinese Journal of Ultrasonography 2008;17(12):1026-1029
Objective To assess the elasticity change of common carotid artery in early stage of atherosclerosis in patients with type 2 diabetes by velocity vector imaging(VVI).Methods Sixty patients with type 2 diabetes were divided into group A(32 cases)and group B(28case)according the vascular complications(including Macroangiopathy and Microangiopathy).Patients without vascular complications belong to group A,others belong to group B.Fifty-eight healthy volunteers were supplied as normal control group.Time to the peak of velocity(VTTP),maximum of velocity(Vmax),maximum of strain(Smax),and maximum of strain rate(SRmax)of six segment(anterolateral wall,anterior wall,anteromedial wall,posteromedial wall,posterior wall,posterolateral wall)were measured,which were supplied by VVI automatic analysis software.Results VTTP,Smax and SRmax had no significant differences in any segments intra-group A,B and control group(P>0.05).Vmax had significant differences in some segments in control group,group A and group B,Vmax of anterior wall,anterolateral wall and posterolateral wall were higher than those of posterior wall,posteromedial wall and anteromedial wall(P<0.05).VTTP,Vmax,Smax and SRmax of corresponding segments had significant differences among group A,group B and control group(P<0.05),control group>group A>group B(P<0.05).Conclusions The change of common carotid elasticity can be detected in early stage of atherosclerosis in patients with type 2 diabetes by VVI.
7.Effect of Long Time Taijiquan Training on Bone Density and Balance Function in Post-menopause Women
Jun ZOU ; Fei LIN ; Li ZHANG ; Lihui LI ; Jieqiong DONG ; Shujuan QIN ; Yan JIANG
Chinese Journal of Rehabilitation Theory and Practice 2011;17(1):80-82
ObjectiveTo investigate the effects of Taijiquan training on bone density and balance function of post-menopause women. Methods59 volunteers of post-menopausal women were divided into Taijiquan group and control group. Bone density was examined with DPX-L. The balance function were recorded with win-pop balance monitor and star diagram. ResultsBone density in lumbar vertebra, left collum femoris and left Ward's septa were higher in the Taijiquan group than in the control group. The lengths of center excursive loci reduced in Taijiquan group. The distances that the foot could touch were longer at Posterolateral, posteromedial, posterior, lateral(back) directions in the Taijiquan group than in the control group. ConclusionTaijiquan training can improve the bone density and balance function in post-menopause women.
8.Relationship between hemispatial neglect and homonymous hemianopia
Yan LIN ; Ming ZOU ; Wansheng LIU ; Beilie HU ; Xiaotong WANG ; Qiqian DONG
Chinese Journal of Postgraduates of Medicine 2006;0(01):-
0.05). Conclusion HSN is a right cerebral hemisphere disease relating to cognitive impairment while homonymous hemianopia is the defect of visual field.
9.Polymorphic Halophilic Bacteria and Haloarchaea from Lianyungang Taibei and Yancheng Sanwei Salt Field Soils
Min-Yan HE ; Zheng-Zhong ZOU ; Lin CAI ; Ge-Jiao WANG ;
Microbiology 1992;0(05):-
Halophilic microorganisms play important rules in salt field ecosystem and salt production. In this study, halophilic bacteria and haloarchaea from soils of Lianyungang Taibei and Yancheng Sanwei salt fields were analyzed. The halophilic bacterial and haloarchaeal types from both the soils were similar, but each soil had its distinctive species. A total of 17 halophilic bacteria were identified, among them, Halomonas was found from both the soils, while Pontibacillus and Halobacillus were isolated from Sanwei salt field only. Using uncultured 16S rRNA gene library technology, 13 haloarchaeal soil 16S rRNA genes were identified from both the saline soils. Halobacterium and Haloplanus were found from Taibei salt field, while Halobac- terium, Natronobacterium, Halogeometricum and Haloarcula were identified from Sanwei salt field. Ten haloarchaeal 16S rRNA gene sequences showed 92%~97% identities with the GenBank sequences that ap- pear to represent novel soil haloarchaeal species. This study provides important information that is useful for further investigation and application of halophiles of saline soil fields.
10.Methodological Research on TLC Identification of Radix Mirabilis himalaica
Hui LIN ; Ting ZHAO ; Qingjia REN ; Huiqin ZOU ; Jiahui LI ; Lian PENG ; Zhiyu REN ; Yonghong YAN
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(12):2725-2730
This study was aimed to establish the TLC identification method of Radix Mirab ilis himalaic a. The β-sitosterol and daucosterol were used as the reference substances. The single-factor test was used. A variety of factors which affected TLC were systematically investigated to filter out the best TLC conditions for identification of different batches of medicines. The results showed that the best TLC conditions were as follows: silica gel G plates, extraction solvent (methanol), reagent (5% sulfuric acid in ethanol), extraction method (ultrasonic extraction with methanol), ex-tracted time (30 min), the agent (petroleum ether-ethyl acetate-acetone (5:2:1)) and sample volume (6 μL). It was concluded that the method, which had high separation degree, was reproducible and simple. It can be used as the quality control of Radix Mirab ilis himalaic a.