1.Application of bonding appliance combined with protracting mask to treat early primary crossbite
Journal of Practical Stomatology 2001;0(03):-
Objective: To evaluate the effect of a new method to treat early primary crossbite . Methods: 20 cases (2.8~6.5 years old ) with anterior crossbite were treated by bonding appliance combined with protracting mask. Cephalometric radiographs were taken and analyzed before and after treatment. Results: On average,in all the 20 cases the maxilla were moved 2.06 mm forward ,mandibular were turned 2.45?downward and backward ,the anterior crossbite was corrected and the face profile was improved satisfactorily.The treatment was conducted for 1.7 months on average. Conclusion: Using bonding appliance combined with protracting mask to treat early primary crossbite can achieve good effects for young children .
2.Diterpenoid Alkaloids in the Roots of Aconitum Bulleyanum Diels
China Pharmacist 2017;20(9):1525-1528
Objective: To study the chemical constituents in the roots of Aconitum bulleyanum Diels. Methods: The air-dried roots of A. bulleyanum were powdered and extracted by methanol with percolation. After removing the solvent under reduced pressure, the crude extract was dissolved in 1. 5% HCl solution, and then basified to pH 9 by NaOH (5%) and extracted by ethyl acetate to ob-tain crude alkaloidal extract after ethyl acetate removal. The alkaloidal extract was isolated and purified by column chromatography, and their structures were identified based on spectral analysis ( 1 H-NMR, 13 C-NMR, MS) . Results:Totally 12 diterpenoid alkaloids were isolated from A. bulleyanum and characterized as foresaconitine (1), crassicauline A (2), chasmanine (3), talatisamine (4), 14-debenzoyl-franchetine (5), pengshenine A (6), crassicautine (7), yunaconitine (8), franchetine (9), liljestrandisine (10), transconitine B (11) and pseudoaconine (12). Conclusion:Compounds 3-7, 10-12 are isolated from this plant for the first time.
4.Recent research progress in Gaucher disease.
Yan-long DUAN ; Yong-hong ZHANG
Chinese Journal of Pediatrics 2009;47(12):953-955
5.The phenotype characteristic of mandibular condylar chondrocytes in vitro
Yong MAO ; Xiaohong DUAN ; Shaozhong DONG
Journal of Practical Stomatology 2001;17(3):200-202
Objective: To study the phenotype characteristic of mandibular condylar chondrocytes (MCCs) in vitro. Methods: MCCs of two-week-old New Zealand rabbits were isolated with enzyme digestion and cultured in DMEM. Phase contrast microscopy, image analysis system, MTT assay and immunocytochemistry method were used to compare MCCs of different passages in cellular shape and size, growth curve and expression of type I and type II collagen. Results: The majority of MCCs in earlier passages (1~3 passage) were polygonal, while more fusiform and spindle-shaped cells were found after 5~6 passages. MCCs in earlier passages were smaller than those in sixth passages. The proliferation rate of MCCs decreased with passaging. There were more type II collagen positive cells in 1 ~ 3 passages, while more type I collagen positive cells in 7th passage. Conclusion: The changing characters of MCCs in vitro such as cellular shape and size and expression of type I and II collagen are similar to those of MCCs in vivo from proliferating zone to hypertrophic zone. MCCs in later passages may be with dedifferentiation.
6.Progress in treatment of childhood Hodgkin lymphoma.
Yan-Long DUAN ; Yong-Hong ZHANG
Chinese Journal of Hematology 2011;32(8):567-571
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7.Research Status of GRP7 8
Xin ZHANG ; Yuming WANG ; Yong DUAN
Journal of Modern Laboratory Medicine 2014;(6):5-8
GRP78/Bip,which was first identified by scientists in 1977,is a major endoplasmic reticulum (ER)chaperone that has a variety of function.In tumor tissue,GRP78 is high expression and ectopic expression;participate in the development of tumor,ER-stress state and ectopic distribution on the cell surface,in the form of receptors involved in signal transduction. Therefore,GRP78 as an tumor therapeutic targets,biomarkers of tumor and prognosis of tumor biological markers,plays an important role in the tumor research.In recent years,domestic and foreign scholars have found that in the non-cancer disease (viral infectious disease cardiovascular disease diabetes neurodegenerative disease etc),GRP78 is high expression,indicate its application prospect.This article makes a brief overview on the molecular biological characteristics of GRP78,role in tumor pathogenesis and therapeutic significance and application prospect in non-tumor disease.
8.Study on the Differential Expression of miRNA Screening and MiR-2 2 1 Regulates Apoptosis by Targeting PUMA Gene in Lung Cancer
Bo JIANG ; Yuming WANG ; Yong DUAN
Journal of Modern Laboratory Medicine 2015;(1):15-19
Objective To investigate the identification of MiR-221 regulates apoptosis by targeting PUMA in lung cancer. Methods The express levels of miRNAs that collected from lung cancer tissue and lung benign lesion were tested by the particular kid they made,analyzed the correlation between individual miRNA.Results 9 6 possible regulated PUMA related miRNAs had been screened through the bioinformatics database,then customized it into the special kit to test the expression with real time fluorescent PCR.The results showed that 10 types miRNAs were up expression in lung cancer tissue,miR-NA221 were selected for deep analyze.Results with rank sum test showed statistical significance (P<0.05)in lung cancer and para cancer tissue.There were statistically significant differences in the expression between metastasis and nonmetastasis (P<0.05),but had nothing to do with the pathological types.Conclusion Real time fluorescent PCR test showed several types of PUMA related miRNAs up-expressed in tissue lung,which indicate miRNA have relationship with PUMA in gene express regulation and cancer generation and development.Pression situation and clinic pathological parameters.Expression of miRNA-221 in lung cancer was associated with tumor metastasis.
9.Research progress on lipid markers for atherosclerotic cardiovascular disease
Rong GONG ; Yanliang ZHANG ; Yong DUAN
Chinese Journal of Laboratory Medicine 2015;(7):445-447
Detection of lipids ,lipoprotein and lipid metabolism related indicators is important in the risk assessment and prevention of atherosclerotic cardiovascular disease ( ASCVD ) .Along with the research progress,there are still defects within the established lipid biomarkers and methods ,which need continuous optimization.The ASCVD risk assessment is expected to be further improved as the new biomarkers are coming up.
10.Value and difficulties in the application of measurement uncertainty for routine HbA1c assay
Zijie LIU ; Zhen JIN ; Yong DUAN
Chinese Journal of Laboratory Medicine 2014;37(12):884-886
Diabetes mellitus has became a growing public health problem,its acute and chronic complications threaten the patient's dramatically.HbA1c is recognized as the gold standard for blood glucose evaluation in patients with diabetes It has reported that the incideut rafe of diabetes related will decline remarkably when HbA1c decline by 1%,so the detection accuracy of the HbA1c is very important in the diabetes patient's management.Uncertainty of measurement can reflect the detation accuracy,which will benifite the value of HbA1c.