2.Exploration on the Normal Reference Criteria of Infant Intelligence by Fagan Test
Bai CHENG ; Yanqing SHU ; Limin CHEN
Journal of Environment and Health 1993;0(01):-
Objective To explore the normal reference values of infant intelligence in Fagan test of infant Method Fagan test was carried out in 315 healthy infants aged 6.5~14.0 month in Shenyang,Tieling and Jinzhou in Liaoning province.Results Infants with cognitive exponent X≥54.6 might be considered to be normal in development,49.9
3.Clarification Process Optimization of Total Flavonoids Extract from Geum Aleppicum with ZTC1 +1-ⅡType Clarifying Agent
Cheng CHEN ; Lu BAI ; Guoping LUO ; Ming WEN
China Pharmacist 2016;19(10):1872-1875
Objective:To optimize the clarification process of total flavonoids extract from Geum aleppicum with ZTC1+1-Ⅱtype clarifying agent. Methods:With the solid removal rate, retention rate of the total flavonoids and clearance rate of protein as the indi-ces, single factor tests were adopted to study the effects of extract concentration, amount of clarifying agent, reaction temperature and reaction time on the clarification results. Results:The optimal clarification process was as follows:the extract concentration was 0. 5 g ·ml-1 , the amount of clarifying agent was 4% component B and 2% component A, the reaction temperature was at 60℃, and the soaking time was 60 min. The retention rate of total flavonoids was 91. 32%, the clearance rate of protein was 35. 82%, and the solid removal rate was 8. 1%. Conclusion:ZTC1+1-Ⅱ type clarifying agent has good effect on the clarification of total flavonoids extract from Geum aleppicum with promising feasibility and stability.
4.Analysis of DNA sequence of Chinese medicinal materials deers and PCR identification of Cervus elaphus and C. nippon
Genben BAI ; Linyuan ZHANG ; Chunsheng LIU ; Wei CHENG ; Daixian CHEN
Chinese Traditional and Herbal Drugs 1994;0(10):-
Objective To identify the animal drug of Cervus elaphs and C. nippon from origin of deers. Methods To extract DNA from deer blood and hairy antler of 11 species of deers such as C. elaphus, C. nippon and so on, and to gain the mitochondrial 12S rRNA gene fragment using the general primers of L1091 and H1478. Based on the sequence multialinement of 11 species deers above gene fragments, designing the couples of special difference primers and identifying C. elaphs and C. nippon. Results 12S rRNA Gene fragments can distinguish different deers well. The couple of primers (EP-1/H1478 and EP-2/H1478) PCR can effectively identify C. elaphus and C. nippon. Conclusion Special primer PCR is suitable for the identification of valuable Chinese medicinal materials, such as C. elaphus and C. nippon.
5.THE MEASUREMENT AND OBSERVATION OF THE TRANSVERSE FORAMINA OF THE CERVICAL VERTEBRAE AND THE CALIBRE OF THE VERTEBRAL ARTERY
Huiying BAI ; Wenying CHEN ; Dihua DAI ; Meijuan ZHANG ; Qirong CHENG ;
Acta Anatomica Sinica 1955;0(03):-
1.The sagittal and transverse diameters of 1,456 transverse foramina in 728cervical vertebrae were measured.The data are as follows:transverse diameter(mm) sagittal diameter (mm)Left Right Left RightMale(702 cases) 6.0?1.0 5.9?1.1 5.4?1.2 5.3?1.1Female(754 cases) 5.9?1.0 5.8?1.1 5.3?1.1 5.1?1.12.Among the 710 transverse foramina of 357 cervical vertebrae observed,mostof them are of the elliptical type.3.19.3% of double transverse foramen were found in 710 transverse foraminawhich were mostly encountered at the 6 th cervical vertebra.4.The mean value of the external diameter of the cervical part of the vertebralartery is 4?0.7mm.in 40 sides of specimens.5.63.1% of the vertebral artery in the 710 transverse foramina were foundmedial to its accompanying vein.6.According to the relationship between the sagittal(X_1)and transversediameter(X_2)of the transverse foramen and the diameter(Y)of the vertebralartery,a formula,(?)=1.859+0.172 X_1+0.24 X_2,of multiple regression was formulatedThus,the estimated diameter of the vertebral artery from the sagittal diameter X_1and transverse diameter X_2 of the transverse foramen could be obtained and it maybe helpful for clinical practice.7.In case of arthrosis,the vertebral artery could be compressed by the unco-vertebral joint which are found mostly at the level of the 4~5th cervicalvertebrae.
7.Huge pneumatocele in a child.
He-Cheng ZHANG ; Yan BAI ; Rong-Feng WANG ; Zheng-Guang CHEN
Chinese Journal of Contemporary Pediatrics 2010;12(2):156-157
8.The effects of Apelin-13 on the behavioral and the expression of YAP in the cerebral ischemia/reperfusion injury of rats
Xiaoge YAN ; Liangcai DING ; Chunmei WANG ; Baohua CHENG ; Jing CHEN ; Bo BAI
Chinese Journal of Behavioral Medicine and Brain Science 2015;24(10):882-884
Objective To investigate the neuroprotective effect of lateral intracerebroventricular injection of Apelin-13 on the YAP expression and the cerebral ischemia/reperfusion (I/R) injury in Wistar rats.Methods Healthy adult male Wistar rats were randomly divided into the sham group, cerebral I/R group and Apelin-13 treatment group.The middle cerebral artery occlusion model was established with ischemia for 1 hour and reperfusion for 24 hours after restricting food and water intake for 12 hours.Apelin-13 was injected into rats' lateral ventricles of Apelin-13 treatment group after reperfusion.Neural function defects was assessed.The volume of infarction was evaluated by TTC staining.The expression levels of YAP were detected by western blot.Results Compared with the cerebral I/R group,the rats in the Apelin-13 treatment group had abetter neurologic score ((2.67±0.33) vs (1.67±0.33) , P<0.05), the infarction volume was decreased ((30.60± 1.42) % vs (23.70± 2.20) %,P<0.05) , and YAP expression level was increased in each part of the cerebral tissue(P<0.05).Conclusion Apelin-13 has a neuroprotective effect,which plays the therapeutic effect by regulating the expression of YAP on cerebral ischemia/ reperfusion (I/R) injury in Wistar rats.
9.Statistical methodologies used in genome-wide association studies
Feng CHEN ; Jian-Ling BAI ; Yang ZHAO ; Peng-Cheng XUN
Chinese Journal of Epidemiology 2011;32(4):400-404
In lieu of large samples of cases and/or controls with hundreds of markers spreading throughout the human genome, researchers started to notice the dramatic increase of genome-wide association study (GWAS) for complex disorders, in the last 5 years. This paper highlights the statistical challenges in such huge-scale genetic studies, and introduces the analytical strategies and steps for handling GWAS data. Such issues as quality control of data, population stratification, methods available to data analysis and results presentation, replication, as well as the limitations of GWAS studies and the challenges presenting for statistics, are addressed.
10.Variation of T regulatory cells and its relation with injury severity and sepsis in patients with se-vere multiple injury
Jiqun CHENG ; Zhaohui TANG ; Xiangjun BAI ; Guobing CHEN ; Zhanfei LI ; Guoshou ZHENG ; Yan YU
Chinese Journal of Trauma 2009;25(7):634-637
Objective To observe change of T regulatory cells (Tregs) and its relation with in-jury severity and sepsis following severe muhiple injury. Methods A total of 60 patients were em-ployed in the study and divided into severe group (30 patients) and critical group (30 patients) based on ISS scores and into sepsis group (22 patients) and non-sepsis group (38 patients) based on complication of sepsis. The proportion of Tregs in peripheral blood in different groups was detected by flow cytometry at days 1,3,5 and 8 after injury. Results The proportion of Tregs was significantly increased at day 5 postinjury, with statistical difference compared with that at day 3 postinjury (P < 0.01). The proportion of Tregs remained increasing at day 8 pestinjury (P < 0.05). At day 8 postinjury, the proportion of Tregs in critical group was significantly higher than that in severe group (P < 0.01). At the same time, the proportion of Tregs in sepsis group was significantly higher than that in non-sepsis group (P < 0.05). Spearman correlation analysis showed a positive correlation of Tregs proportion with ISS score (rs =0.654, P < 0.01). Conclusions Tregs play an important role in suppression of T cell-mediated im-munity after severe injury. The variation of Tregs can help evaluate prognosis and predict the risk of com-plicating sepsis in patients with severe multiple injury.