1.Analysis of risk factors for spontaneous bacterial peritonitis in hepatic cirrhosis
Chinese Journal of Primary Medicine and Pharmacy 2011;18(16):2182-2183
ObjectiveTo study the risk factors of spontaneous bacterial peritonitis(SBP) in cirrhotic patients with ascites. MethodsThe clinical data of 186 cirrhotic patients with ascities from February 2005 to March 2010 were retrospectively analyzed were divided into two groups,the one with SBP and the other without SBP. The following factors such as sex, Child-Pugh grade were analyzed with binary logistic regression. ResultsAmong those factors ,3 factors were proved to be risk factors for SBP in cirrhotic patients with ascites by analysis of single and multiple variables. Those were Child-Pugh grade score, serum bilirubin level and ascitic fluid albumin. ConclusionSBP in cirrhotic patients with ascites was affected by many factors. The Child-Pugh grade score, serum bilirubin level and ascitic fluid albumin were independently associated with risk factors of SBP, so it was important to pay attention to those factors in preventing the onset of SBP.
2.Research progress of Bruton tyrosine kinase in B cell malignances
Journal of Leukemia & Lymphoma 2014;23(6):378-380
Bruton tyrosine kinase (Btk) is a member of the non-receptor protein tyrosine kinases of Tec family.It plays an important role in growth,proliferation,differentiation and signal transduction of B lymphocyte.After activation of B-cell receptor (BCR) by diverse stimuli,Btk is activated through tyrosine phosphorylation.Activated Btk can stimulate several downstream signaling proteins.Btk and BCR signaling pathways play important roles in initiation and maintenance of B cell malignancies.This review focuses on the recent findings in association of Btk and B cell malignancies.
3.Relationship between lung function and bone mineral density in nonsmoking healthy women
Chinese Journal of Health Management 2015;(1):65-68
Objective To explore the relationship between lung function and bone mineral density (BMD) in nonsmoking women. Method The healthy women who came to our hospital for physical examination from June 2013 to March 2014 were chosen. Totally 508 cases, average age 49.33±8.66 years , were included through the questionnaire and further examination. The lumbar BMD was measured with dual energy X-ray absorption, the subjects were divided into normal bone mass group, osteopenia group, and osteoporosis group according to the diagnostic criteria of WHO. Through questionnaires, the human body composition analyzer, pulmonary function test apparatus were used to acquire their general information, body mass index (BMI) and pulmonary ventilation function. The data were compared by analysis of variance, Pearson correlation analysis and multiple linear stepwise regression analysis were applied to explore the relationship among the pulmonary ventilation function and bone mineral density of lumbar spine and lumbar bone area (BA). Result BMI, forced vital capacity rate of one second (FEV1/FVC) were not significantly different among the three groups (F values were 0.192, 0.296;All P>0.05);the other indicators of pulmonary function including forced vital capacity (FVC),FVC percent predicted (FVC%), forced expiratory volume in first second(FEV1), FEV1 percent predicted(FEV1%),peak expiratory flow rate(PEF)decreased markedly in osteoporosis group compared with normal group and osteopenia group (F=15.313, 5.508, 18.890, 5.440, 6.763;all P<0.05). The lumbar spine BMD and lumbar BA declined significantly in osteoporosis group and osteopenia group comparing with normal group(F=169.053, 205.660, 224.567, 201.086, 276.927, 3.550;all P<0.05). Pearson correlation analysis showed that FVC, FVC%, FEV1, FEV1%, PEF were negatively correlated with age (all P<0.01);FVC, FVC%were negatively correlated with BMI (all P<0.05) , FEV1/FVC was positively correlated with BMI P<0.05);FVC was positively correlated with lumbar BMD and lumbar BA (P<0.01). FEV1 were positively correlated with lumbar BMD and lumbar BA(all P<0.01). Multiple regression showed that age, BMI, and lumbar BA were correlated with FVC, FVC%, FEV1, FEV1/FVC(All P<0.01). Conclusion In healthy nonsmoking women, age, BMI, and lumbar BA are the main influencing factors of pulmonary function;except for FEV1/FVC, the other indicators of pulmonary function decreased markedly in osteoporosis group.
4.Therapeutic effect of amlodipine on inflammatory factor levels in patients with essential hypertension
Chinese Journal of cardiovascular Rehabilitation Medicine 2015;24(6):659-661
Objective:To observe therapeutic effect of maleic acid levamlodipine (amlodipine) on inflammatory fac‐tor levels in patients with essential hypertension (EH) .Methods :According to random number table method ,a to‐tal of 84 EH patients were randomly and equally divided into nifedipine group (received nifedipine treatment ) and amlodipine group (received maleic acid levamlodipine treatment ) ,both groups were treated for 12 weeks .Blood pressure ,serum levels of tumor necrosis factor α(TNF‐α) ,interleukin‐6 (IL‐6) and high sensitive C reactive protein (hsCRP) were measured and compared between two groups before and after treatment .Results:Before treatment , there were no significant difference in blood pressure ,serum levels of TNF‐α,IL‐6 and hsCRP between two groups , P>0.05;after treatment ,all above indexes significantly reduced in both groups compared with before treatment ,P<0. 01 all .Compared with nifedipine group ,there were significant reductions in systolic blood pressure [ (136. 9 ± 13.4) mmHg vs . (128.3 ± 12.5) mmHg] ,diastolic blood pressure [ (88.4 ± 7.1) mmHg vs . (82.7 ± 6.8) mm‐Hg] ,serum levels of TNF‐α [ (10.85 ± 2.56) ng/L vs . (8.61 ± 2.37) ng/L] ,IL‐6 [ (18.92 ± 4.61) ng/L vs . (13.73 ± 4.18) ng/L] and hsCRP [ (7.95 ± 2.38) mg/L vs . (5.89 ± 2.24) mg/L] in amlodipine group , P<0.01 all .Conclusion:Amlodipine can more significantly reduce levels of TNF‐α,IL‐6 and hsCRP ,inhibit inflammatory reaction than those of nifedipine and contribute to blood pressure control in patients with essential hypertension .
5.Understanding and Thinking on America Clinical Evaluation of Medical Devices.
Fuqiang YUAN ; Peng YUAN ; Gang DENG
Chinese Journal of Medical Instrumentation 2015;39(5):372-387
This paper introduces the risk classification and listing way of medical devices in the United States, and according to the contents in various situations, FDA provides the requirements for clinical evaluation. At the same time, through the comparative study on the similarities and differences between USA and our country of the clinical evaluation, the paper puts forward some suggestions.
Equipment and Supplies
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standards
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Risk Assessment
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United States
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United States Food and Drug Administration
6.Study on effects of supra-physiologic glucose on PDX-1 expression and insulin secretion
Changqing XIAO ; Hongming DENG ; Yuan HUANG
Chinese Journal of Diabetes 2006;14(4):281-283
Objective To study the effects of supra-physiologic glucose on the expression of PDX-1 and insulin secretion. Methods Islet cells isolated from SD rats were incubated in medium containing 5.6 mmol/L or 33 mmol/L glucose respectively for 3 days. Basic and glucose-induced insulin levels in supernate and in islet cells were detected. The PDX-1 mRNA and protein were detected. Results (1) Islet cells exposed to 33 mmol/L vs 5.6 mmol/L glucose for 3 days showed significant decrease in the basic and glucose-induced insulin release, and in cell insulin content and PDX-1 protein. (2) Prolonging incubation of islet cells in 33 mmol/L glucose aggravated the inhibitive effect on PDX-1 expression and insulin secretion. (3)Recovery to normal concentration of glucose in 3 days could partly improve PDX-1 expression and insulin secretion. Conclusions Inhibition of PDX-1 is one of the mechanism of glucotoxicity, and recovery to normal concentration of glucose in 3 days can partly improve PDX-1 expression and insulin secretion.
7.Two inlay processing techniques effects on the mechanical function of resin inlays
Chengguang LIU ; Jing DENG ; Changqing YUAN
Chinese Journal of Tissue Engineering Research 2011;15(47):8863-8865
BACKGROUND: Composite resin functions as a practical resin restoration material with beautiful outlook, modifying its mechanical properties has become a hot spot in research.OBJECTIVE: To prepare resin specimens with two kinds of inlay curing machines: CERAMAGE and TESCERA, and to compare the mechanical properties of these specimens.METHODS: The resin specimens supporting two machines were cross-matched with these machines and then divided into four groups: Group A was Tescrea resin prepared with TESCERA machine; group B was Tescrea resin prepared with CERAMAGE machine; group C was Ceramage resin prepared with CERAMAGE machine; group D was Ceramage resin prepared with TESCERA machine. The standard specimens were determined for compressive strength, hardness and flexural strength.RESULTS AND CONCLUSION: The compressive strength and hardness in group A were higher than those in other three groups,and group B exhibited higher compressive strength and hardness than groups C and D (P < 0.05). The flexural strength in groups C and D was higher than that in groups A and B (P < 0.05), there was no significant difference between groups C and D, neither betweens group A and B. The experimental findings indicate that TESCERA inlay machine and Tescera resin achieve the optimal mechanical properties.
8.Apply value of sentinel lymph node detection in patients with cervical cancer
Yuehua DENG ; Jinqiong YANG ; Zhiying YUAN
Chinese Journal of Primary Medicine and Pharmacy 2006;0(06):-
Objective To probe into the clinical apply value of sentinel lymph node detection in patients with cervical cancer.Methods 33 patients with cervical cancer underwent SLNS detection by using blue dye or methlene blue 4ml or lymphazurin was injected into the cervix at 4 points around the tumor at the time of radical hysterectomy and bilateral pelvic lymphadenectomy1 tumor characteristics surgical findings and specific locations of lymphatic dye uptake were recorded and correlated with final pathology results.Results Among 33 patients undergone this detection,dye uptake was not seen in 1 patient,dye uptake was seen in 32 patients,the SLNS were successfully detected in 81.25%(26/32);7 patients didn't discriminated SLN,the rate was 21.88%(7/32).There were 6 cases who were discovered pelvic cavity lymph nodes metastases in 26 patients discriminated SLN successfully,in all 12 piece metastases lymph nodes were SLN,sensitivity was 6/6,accuracy was 100%(26/26),fake negative rate was 0.Conclusion Sentinel lymph node dectection by the way of blue dye has more clinical apply value in patients with cervical cancer.
9.Investigation of Jiulong River Water Source Pollution by Phthalates
Yang LU ; Dongxing YUAN ; Yongzhi DENG
Journal of Environment and Health 2007;0(09):-
Objective To know the pollution level of phthalates in Jiulong River source water and the purification efficiency by conventional water treatment processes. Methods The samples of Jiulong River source water and treated water from two waterworks were collected and analyzed with GC-MS during Aug.-Sep.2006. Results Jiulong River had been polluted by phthalates. The prominent phthalates pollutants were dibutyl phthalate (DBP) and diethyl phthalate(DEP). The maximum concentrations reached 17.238 ?g/L and 11.701 ?g/L, respectively. PAEs content in tap-water was lower than the standard limits. Conclusion The conventional water treatment processes, preoxidation, coagulation, sedimentation, filtration and disinfection, could remove phthalates from the drinking water to a certain degree, but the risk of phthalates pollution in drinking water still exists.
10.Clinical evaluation of preoperative arterial infusion chemotherapy and surgical operation for colorectal carci-noma
Jianhua YUAN ; Zhongsheng ZHAO ; Gaoli DENG
Journal of Interventional Radiology 2001;0(05):-
0.05). Conclusions Peroperative transcatheter arterial infusion chemotherapy resulting in apoptosis of adenocarnoma, can raise the radical operation rate, and prolong survival rate for colprectal carcinoma patients.