1.Lipoprotein lipase gene polymorphisms and atherosclerosis
International Journal of Cerebrovascular Diseases 2017;25(2):188-192
Lipoprotein lipase (LPL) is the rate-limiting enzyme for the hydrolysis of the triglyceride core of circulating triglyceride-rich lipoproteins.LPL can not only affect the lipoprotein level,but also play an important role in the development of atherosclerosis.LPL gene polymorphisms may affect LPL activity,and therefore have both pro-and anti-atherogenic effects.This article reviews the relationship between LPL gene polymorphism and atherosclerosis.
2.The Relevant Indexes' Changes of UCG in Patients with Grade 1 Hypertension
Yun CHEN ; Xin WANG ; Ying QIU ;
Chinese Journal of Prevention and Control of Chronic Diseases 2006;0(05):-
Objective To observe the earlier changes of left heart structure and function in patients with Grade 1 hypertension.Methods 65 patients with Grade 1 hypertension were measured on the left atrial diameter(LAD),left ventricular diameter,thickness of ventricular,mass index and evaluate the left ventricular systolic and diastolic function by UCG.Results Compaired to 50 normal controls,the LAD and left ventricular diastolic function of the patients(38.06?3.68 mm,0.72?0.11) was significantly different with those of 50 normal controls(29.86?3.08 mm,1.18?0.08)(P
3.Effect of limestone dusts on health of exposed workers.
Xiao-xin GU ; Chen-yun YANG ; Yong-hong YU
Chinese Journal of Industrial Hygiene and Occupational Diseases 2008;26(8):476-478
Air Pollutants, Occupational
;
adverse effects
;
analysis
;
Calcium Carbonate
;
adverse effects
;
analysis
;
Cross-Sectional Studies
;
Dust
;
Female
;
Humans
;
Lung
;
drug effects
;
physiology
;
Male
;
Occupational Exposure
;
adverse effects
;
Pneumoconiosis
;
epidemiology
;
Sampling Studies
;
Surveys and Questionnaires
5.Changes of angiogenic factors in patients with type 2 diabetes mellitus
Lili WANG ; Xin ZHUGE ; Yiling CHEN ; Yun ZHANG
Chinese Journal of Endocrinology and Metabolism 2012;28(3):219-220
Serum levels of human CXC-chemokine ligand 16,basic fibroblast growth factor,plateletderived endothelial cell growth factor,and number of endothelial progenitor cells were determined in 80 patients with type 2 diabetes mellitus and 40 normal control subjects.It was found that there were some disturbances of angiogenesis in diabetic patients.These abnormalities were more pronounced in these patients with old age,hyperglycemia,raised HbA1c,and presence of vascular diseases.
6.Clinical analysis on conversion from tacrolimus to cydosporine A in recipients of liver transplantation
Wei-Long ZOU ; Yun-Jun ZANG ; Xin-Guo CHEN ;
Chinese Journal of Organ Transplantation 2005;0(11):-
Objective To analyze the causes and outcome of conversion from tacrolimus (FK506) to cyclosporine-A (CsA) in recipients after liver transplantation.Methods 317 consecutive liver transplantation recipients in our department received anti-CD25 monoclonal antibody,FK506, mycophenolate mofetil and corticoid for prophylaxis of cellular rejection.The blood FK506 trough level was (10-15)?g/L within the first 30 days,(8-12)?g/L within next 60 days,and (5-8)?g/L was kept during 90 to 180 days after transplantation.All recipients reveived a follow-up of 6 months. Remits Sixteen out of 317 recipients (5.05%) required conversion from FK506 to CsA.The clinical indications for conversion included:neurological adverse effect of FK506 in 5 cases (31.25%),hema- tological adverse effect in 2 cases (12.5%),gastrointestinal effect in one case (6.25%),not capable of reaching therapeutic window concentration in 3 cases (18.75%),refractory hyperglycemia in 2 ca- ses (12.5%),and economic factor in 3 cases (18.75%).The majority of recipients demonstrated clinical improvement after the switch,except 2 of 16 patients (12.5%) had to be reconverted to FK506 due to renal disadvantage.No dead recipient and adverse effect correlated to immunosuppres- sive agent conversion were seen.Conclusion If necessary,conversion from FK506 to CsA in patients undergoing liver transplantation is safe and effective.
7.Study on determining method of dl-tetrahydropalmatine by TLCS
Xin LIU ; Yu LIN ; Yun CHEN ; Junxuan YANG ; Wenyin PEN
Chinese Traditional Patent Medicine 1992;0(01):-
AIM: To study the determination of dl-tetrahydropalmatine (THP) in Chi nese traditional patent medicines by TLC-Scanning from the viewpoint of the pro cess control of manufacture. METHODS: To select the 5 kinds of representative drugs and its prep arations contained, THP was extracted with solvent method. The mobile phase contains diethylamine. THP w as separated with high-efficiency silica gel plate or handcrafted silica gel p late. Iodine was used for chronogenic agent and fluorescence defectiion for dete rmination. TLC-Scanning results were compared with HPLC. RESULTS: The method is practicable, the result is correlative with the HPLC. CONCLUSION: TLC-Scanning is fit for the quality control of the Chi nese traditional patent medicine in the process of manufacture.
8.The effects of nano-chitosan/bone morphogenetic protein gel on the repair of mandibular defect
Yuyang CHEN ; Fuqiang XIE ; Yun ZHANG ; Xin WANG ; Jian SUN
Journal of Practical Stomatology 2014;(5):624-628
Objective:To investigate the effects of Nano-chitosan rhBMP-2 Gel(NCS/BMP-2 Gel)on the repair of mandibular de-fect.Methods:NCS/BMP-2 Gel and NCS Gel were prepared and respectively injected into the subcutaneous space on both sides of dorsum of 9 rats.3 rats were respectively sacrificed 10,20 and 30 d after injection.The subcutaneous nodules were histologicaly ex-amined.Mandibular defect was made in 54 SD rats and the rats were divided randomly and into 3 groups(n=18):NCS/BMP-2 Gel was implanted into the defects in group 1,NCS Gel in group 2,no injection in group 3.Animals were sacrificed 3,6 and 9 weeks after transplantation.X-ray examination,pathologic observation were conducted.Results:Subcutaneous nodules were found in both sides of the rat dorsum.The residual mandibular defect area in study group 1 was apparently smaller than that in group 2 and 3(P<0.05). More new bone formation was observed in the gel injected area in group 1 than in group 2 and 3.Conclusion:Nano-CS/BMP-2 Gel is biocompatible and can accelerate the healing of mandibular defect.
9.Study and preparation of a novel apatite-wollastonite bioactive glass-ceramic-calcium sulphate hemihydrate composite.
Xin-xin CHEN ; Yun-mao LIAO ; Zhi-min ZHU
Chinese Journal of Stomatology 2010;45(7):439-443
OBJECTIVETo prepare a novel apatite-wollastonite bioactive glass-ceramic-calcium sulphate hemihydrate(AW-BGC-CSH) composite, to study its biocompatibility, and to provide experimental support for its further clinical application.
METHODSSamples of AW-BGC-CSH composite were prepared with different AW-BGC granules-CSH ratios (50%, 40%, 30%, 20%). Surface morphology, microstructure and mechanical features of the composite were measured. Osteoblasts were cultivated in vitro on the composite. Cell morphology, proliferation, and the alkaline phosphatase (ALP) activity of osteoblasts were examined to determine the biocompatibility of the composite.
RESULTSThe composite showed a three-dimensional pored structure with communicated micropores under scanning electron microscopy (SEM). The plasticity of the composite could be maintained within 3 - 5 min. Its top solidification temperature was 36.4°C and the maximum compressive strength was 9.3 MPa. The osteoblasts adhered to the composite and grew well. At 1, 3, 5, 7 d after cultivated, the microprotein contents of the composite were (251 ± 12), (296 ± 31), (580 ± 13) and (571 ± 15) mg/L, and the ALP activity of the composite were (4.50 ± 0.68), (6.90 ± 0.27), (12.05 ± 0.28) and (11.86 ± 0.63) U/mg. The results of the ALP activity and microprotein contents in the experiment group were significantly higher than those in the control group (P < 0.05).
CONCLUSIONSThe prepared AW-BGC-CSH composite has a three-dimensional pored structure, favourable plasticity, mechanical property and good biocompatibility.
Apatites ; chemistry ; Biocompatible Materials ; chemistry ; Calcium Compounds ; chemistry ; Calcium Sulfate ; chemistry ; Cells, Cultured ; Ceramics ; chemistry ; Materials Testing ; Osteoblasts ; cytology ; Silicates ; chemistry
10. Prognosis-related clinicopathologic characteristics of FIGO stage Ⅰ Müllerian adenosarcoma of uterus
Yun WANG ; Aijun LIU ; Xin CHEN ; Xin SONG
Chinese Journal of Pathology 2018;47(5):334-338
Objective:
To investigate the clinicopathological features of FIGO stage Ⅰ uterine Müllerian adenosarcoma and clinical prognosis.
Methods:
Fifteen cases of uterine Müllerian adenosarcoma at FIGO stage Ⅰ were collected at PLA General Hospital from 2005 to 2017. Twelve cases with complete follow-up data were divided into 2 groups: group A (7 patients with survival) and group B(5 patients of death or tumor progression). Clinicopathologic features were compared between the two groups.
Results:
The median age of the patients was 43 years and 56 years, and the tumor size was 4.3 cm and 7.3 cm for group A and B, respectively. Cases in group A were FIGO ⅠA and ⅠB stage tumors and were mainly low grade in histology (5/7) with rare tumor hemorrhagec, necrosis (1/7) and sarcomatous overgrowth. In contrast, most cases in group B were high grade sarcomas(3/5) with frequent hemorrhage, necrosis(3/5) and sarcomatous overgrowth(4/5). Most cases of group A expressed ER, PR and CD10 (6/7) and low Ki-67 index of ≤20%(5/7). While most group B cases lost expression of ER and PR (3/5), significantly reduced expression of CD10 and higher Ki-67 index of ≥30%(4/5).
Conclusions
Most of uterine adenosarcomas are of low malignant potential. The main prognostic indicator is advanced tumor stage. For patients at stage Ⅰ, sarcomatous overgrowth, high-grade histology, deep myometrial invasion, decreased or absent expression of CD10, ER and PR, increased Ki-67 index(≥30%) and hemorrhagic necrosis may indicate poor prognosis. Müllerian adenosarcomas arising from endomeriosis may present unusual growth patterns.