1.Integrin-linked kinase and diabetic nephropathy
Journal of Medical Postgraduates 2004;0(01):-
Cellular functions like proliferation,differentiation,migration,morphogenesis and apoptosis are modulated by the extracellular matrix.Integrins are the prototypic heterodimeric transmembrane matrix receptors with competing affinities for individual extracellular matrix ligands.The intracellular integrin domain clusters cytoplasmic proteins into focal adhesion plaques for bidirectional(outside-in and inside-out) signaling.Integrin-linked kinase(ILK) is an intracellular serine/threonine protein kinase that interacts with the cytoplasmic domains of ?-integrins.ILK organizes the connections of the extracellular matrix via integrins to the cytoskeleton and is involved in adhesion plaque signaling,and it plays a crucial role in the pathogenesis of chronic renal fibrosis.High glucose induces the upregulation of the synthesis and activity of ILK in cultivated mouse podocytes and mesangial cells.The ILK protein level is significantly increased in diabetic glomeruli.ILK activity is likely to provide the basis for an effective therapeutic method for diabetic nephropathy.This review gives an introduction of ILK structure and function,followed by a summary of our current understanding of ILK in diabetic nephropathy with a special focus on glomerular cell-matrix interaction.
2.Reseach Progress on Molecular Detection Technology of Influenza Virus
Journal of Modern Laboratory Medicine 2016;(1):68-70
Influenza viruses are global epidemic and diversely difficult to distinguish,which threaten human’s survival and development very much.In recentyears,the frequent outbreaks of influenza prompt the rapid development of Influenza virus detection.Compare with the traditional isolated culture and immunological detection,molecular diagnostic technology is of high detection speed,high sensitivity and specificity,that gradually play an important role in the current Influenza virus de-tection.In order to provide a theoretical basis for the rapid diagnosis of Influenza virus in the clinic,the article summarize the update progress of molecular biology and diagnostic techniques of Influenza viruses.
3.Effects of short-term insulin pump treatment on pancreatic ?-cells in newly diagnosed type 2 diabetes mellitus
Fuzhen LIU ; Wenpu CHEN ; Yu CHEN
Journal of Xi'an Jiaotong University(Medical Sciences) 1981;0(03):-
Objective To explore the effects of insulin pump on pancreatic ?-cells in type 2 diabetes mellitus accompanied with hyperglycaemia.Methods We treated 46 cases of newly diagnosed type 2 diabetes mellitus with fasting blood glucose≥10.0 mmol/L by insulin pump for 2 weeks.Their blood sugar and insulin were determined before and after treatment by oral glucose tolerance test and insulin releasing test.We then calculated the function index,morning secretion of pancreatic ?-cells and insulin resistance index.The patients were followed up for 6 months and the blood glucose was monitored.Results After treatment,insulin,function index and the morning secretion were increased significantly,while the blood sugar and resistance index were decreased.In all the patients,16 could maintain ideal blood glucose only by alimentary control and exercise.Conclusion With the insulin pump in a short term,patients with type 2 diabetes mellitus can rapidly control blood glucose,obviously improve pancreatic ?-cells,and reduce insulin resistance.
5.Nursing of totally robotic coronary artery byass grafting
Ximei LIU ; Yaqun YU ; Yuhong CHEN
Chinese Journal of Practical Nursing 2012;28(2):28-30
Objective To study the nursing of totally endoscopic coronary artery bypass grafting (TECAB)using da Vinci robot.Methods 60 patients who accepted TECAB from January 2007 to December 2010 were selected.All patients underwent coronary arteriography,which showed severe stenosis in left anterior descending artery(LAD).8 of them complicated with right coronary artery stenosis or left circumflex coronary (LCX)stenosis.All patients were given education and nursing care from admission to discharge.Results After operation,angina pectoris alleviated in all cases,no surgery-related complications occurred.The bridge vessel was all cleared.All patients were discharged after rehabilitation.Conclusions Totally robotic TECAB is a new minimally-invasive surgery.Perioperative education is important.In early postoperative course,nurses should pay attention to bleeding condition of drainage and pulmonary nursing.Early postoperative exercise is a must,which can promote the recovery of all systems.
6.Chemerin in hepatocelluar carcinoma: expressions and prognostic values
Zhaoxiang YU ; Yinghui CHEN ; Qingguang LIU
Chinese Journal of Hepatobiliary Surgery 2012;18(4):283-287
Objective To study the expressions of Chemerin in hepatocellular carcinoma (HCC) and HCC cell lines,and to demonstrate the relationship between the expressions and prognosis.Methods The expressions of Chemerin protein in normal hepatocellular tissues,HCC and their paired tissues were detected by immunohistochemical staining of SABC; the expressions of Chemerin protein in HCC,cell lines and immortalized hepatocyte cell lines were detected by RT-PCR.Results The positive expression rates of Chemerin were 56.67%,90.00%,100% in HCC,HCC cell line and normal hepatocellular tissues respectively,and the differences were significant (P<0.05).The expressions of Chemerin mRNA in HCC paired tissues were higher than in HCC (P<0.05).There was a higher expression of Chemerin mRNA in immortalized hepatocyte cell line LO2 ; but a lower expression in HCC cell lines.The expressions of Chemerin were related to lymph node metastasis,portal vein tumour thrombi,differentiation and TNM stage but not related to sex,age,tumour size,HBsAg and AFP.Conclusions Down-regulated expression of Chemerin may play an important role in the development,progression and metastasis of HCC.It may be a molecular marker for prognosis of HCC.
7.Diagnosis and treatment of Hashimoto’s disease complicated with thyroid cancer
Jianping YU ; Runhao CHEN ; Liu GUI
China Oncology 1998;0(01):-
Purpose:To investigate the pathogenesis,diagnos is and treatment of hashimoto's disease(HD) complicated with papillary thyroid c ancer (PTC ). Methods:Clinical data of 12 cases of HD complicated with PTC un dergoing surgery were analysed retrospectively and followed-up for one half to 8 years. Results:In this series papillary thyroid cancer occurred in 25 % (12/48) in patients with HD, but correct preoperative diagnosis was obtained i n 3 (25%) of 12 cases.All patients had thyroid nodules and received thyroidectom y,3 cases underwent functional cervical clearance of lymph nodes. All patients w ere followed up for 6 months to 8 years and there was no death , no recurrence and no metastasis. Conclusions:HD can develop into PTC .The clinical diagnosis of coexistence of HD and PTC is still difficult. The key to diagnosis and rational treatment includes detailed understanding its clinical features, routine examin ation of serum antibodies and ultrasonography, selected scintigraphic thyroid s can or FNAB and finally quick frozen pathologic section in operation. HD complic ated with PTC should be treated surgically.Intraoperative frozen section diagnos is should be performed routinely so that HD complicated with PTC can be diagnose d.The operation procedure should be individualized.All patients should be given small dosage of thyroxine.
8.Clinical management of anuria caused by congenital bilateral ureteral stenotic obstruction
Yu LIU ; Yuli CHEN ; Xiaobing SUN
Chinese Journal of Urology 2001;0(04):-
Objective To investigate the clinical features of anuria caused by pediatric congenital bilateral ureteral stenotic obstruction,and to improve the diagnosis and treatment of the disease.Methods This series included 7 infants(2 males and 5 females;age range,35-57 d) with congenital bilateral ureteral stenotic obstruction.The clinical presentations were characterized by sudden anuria or oliguria.B-ultrasound,cystography and puncture pyelography were performed in all of them,and magnetic resonance urography(MRU) in 3.Based on the definite diagnosis,resection of stenotic segment of the ureter or ureteral implantation was performed on them.Results The diagnosis was confirmed by puncture pyelography in all of the 7 cases.Six cases underwent phase I surgery and recovered.No ureteral stenosis and cystoureteral reflux occurred during a follow-up of 2-4 years.The renal function was normalized in them.One case had stenosis recurrence due to scar formation,and was cured by the second operation.Conclusions Anuria caused by pediatric congenital bilateral ureteral stenosis should be diagnosed and treated as early as possible.Definite diagnosis can be established by puncture pyelography and MRU.Resection of the obstructive segment of the ureter,protection of renal function,and ureteral implantation are the main therapies.
9.The Exploration for Inspector Effect on the Hygienic Quantified and Classified Score of the Hostels
Wenbo YU ; Yongquan LIU ; Liping CHEN
Journal of Environment and Health 1992;0(02):-
Objective To explore the health inspector effect on the score of hygienic degree of hostels. Methods Using the scale for hygienic degree of hostels, 38 health inspectors from 9 sections in the Bureau for Health Inspection and Supervision of Haidian District in Beijing, scored 621 hostels in the district. The multilevel statistics model has been used to analyze the health inspector effect, of which the index is intra-class correlation (ICC), in the double level model structured by hostels as the level 1 unit and inspectors as the level 2 unit, and in the triple level model structured by hostels as the level 1 unit, inspectors as the level 2 unit and the sections as the level 3 unit. Results In the double level model, ICC of the level 2 unit is 0.142 8. In the triple level model, ICC of the level 2 unit is 0.0000 and ICC of the level 3 unit is 0.154 1. Conclusion There is inspector effect influencing the score of hygienic degree. And the effect seems to be more similar in one section comparing with the other ones.
10.Detection of Aconitine and Mesaconitine and Hypaconitine in blood by LC/MS/MS
Runsheng ZHANG ; Chen YU ; Gangyi LIU
Chinese Journal of Forensic Medicine 2002;0(05):-
Objective To establish a method used for determination of Aconitine and Hypaconitine and Mesaconitine in blood by LC/MS/MS.Methods Extraction of blood sample was conducted by use of 1% thirdchloroactic acid and acetonitrile liquid,and the electrospray fog ionic source,and positive ion MRM scan were employed.Result The linearity correlation coefficients(r)was≥0.992 2.The limit of quantification (LOQ S/N=5) was 2.0 ng/ml for Aconitine,0.5 ng/ml for Hypaconitine,and 0.5 ng/ml for Mesaconitine.The recovery of appended contrast in blank blood sample ranged from 91.25% to 103.1% with coefficient of variation (CV,n=6) less than 10.93%.Conclusion The method of LC/MS/MS is sensitive and reliable,and the sample handling is quick and simple,which was suitable for determination of the Aconitine and Hypaconitine and Mesaconitine in blood sample.