1.Application and prospects of biomarkers in children with acute kidney injury
Chinese Journal of Applied Clinical Pediatrics 2015;30(5):325-327
Acute kidney injury(AKI) is a common clinical severe emergency in children,with high morbidity,mortality and poor prognosis.The traditional indicators such as serum creatinine and urine can't diagnose early.Recently,with the deepening research of AKI,many higher specific and sensitive biomarkers have been found.But the study of biomarkers in children is behind the adult,and the etiology,pathophysiology of AKI in children have great difference from adult.So this paper will show the advances of biomarkers in children of AKI.
2.Enteral nutrition in severe acute pancreatitis
Parenteral & Enteral Nutrition 1997;0(01):-
Patients with SAP have a hypermetabolic and hypercatabolic state.Nutritional support for patients with SAP is needed.EN by the jejunal route does not stimulate pancreatic secretions and is safe.At present,the beneficeal effects of EN towards improving the nutritional condition,protecting gut barrier function,reducing translocation of bacteria and endotoxins,modulating the inflammatory response,and decreasing the cost have been observed.Therefore,the EN rather than PN should be used by the jejunal route to provide nutritional support for patients with SAP.
3.MicroRNA-21-5p regulating p38 mitogen-activated protein kinases signaling pathway
Chinese Journal of Applied Clinical Pediatrics 2014;29(5):375-379
Objective To verify the targeting regulatory relationship between microRNA (miR)-21-5p and mitogen-activated protein kinase kinase 3 (MKK3).Methods miR-21-5p and MKK3 targeted relationship was analyzed by bioinformatics database predict.Constructing MKK3 3'UTR reporter vector (MKK3-3U) and mutation reporter vector (MKK3-3 U-M) was constructed by synthesizing miR-21-5p mimics (mimic),miR-2 1-5p inhibitor (inhibitor),nonsense miR (NC).NC (NC1 group),mimics (mimic1 group),inhibitor (inhibitor1 group) together with MKK3-3U cotransfected human embryonic kidney (HEK293) cells,respectively.Empty vector-pYr-MirTarget (NC2 group),MKK33U (Mt group),M KK3-3U-M (Mut group) together with mimic co-transfected HEK293,respectively.The fluorescence ratio was detected by dual luciferase assay.NC,mimics,inhibitor intervened human renal tubular epithelial (HK-2) cells,respectively.RT-PCR and Western blot were used to test cell MKK3 expression level in HK-2.Results 1.The fluorescence ratios of NC1 group,mimicsl group,and inhibitor1 group were 100.00%,67.99%,133.17%,and there was difference between mimic1 group and NC1 group(t =19.93,P < 0.05).2.The fluorescence ratios of NC2 group,Mt group and Mut group were 100.00%,65.30%,98.48%,and there was difference between Mt group and NC2 group (t =14.39,P < 0.05).There was no significant difference between NC2 and Mut group (t =0.63,P > 0.05).3.MKK3 mRNA relative expression levels of the control group mimic2 group and inhibitor2 group were 1.36 ± 0.02,1.01 ± 0.04,1.43 ± 0.06 ; relative protein expression levels were 0.97 ± 0.05,0.62 ± 0.06,1.36 ± 0.32.MKK3 mRNA and protein levels of mimic2 group were significantly lower compared with the control group (F =85.98,118.26,all P < 0.01).Conclusions MKK3 is the target gene of miR-21-5p.miR-21-5p can regulate the expression of MKK3 both in mRNA and protein levels.miR-21-5p may be an important regulatory molecule in p38 mitogen-activated protein kinase signaling pathway.
4.The effect of recombinant human CTLA-4Ig fusion protein on T lymphocytes in active rheumatoid arthritis patients
Zhihui BAO ; Xiu LI ; Yang LI
Chinese Journal of Rheumatology 2012;16(6):383-387
Objective To discuss the therapeutic effect of recombinant human CTLA-4Ig fusion protein (rhCTLA-4Ig) on rheumatoid arthritis (RA) patients and the change of T helper cells 17 (Th1 7 ) and regulatory T (Treg) cells.Methods Forty-eight active RA patients were randomly divided into the treatment group and the control group.Treatment group received 12 weeks of infusions of rhCTLA-4Ig ( 10 mg/kg),while the control group received 12 weeks of infusions of placebo.The changes of expression levels of Th17cell were detected by flow cytometry.The changes of expression level of FoxP3 in monocytes of the peripheral blood were examined by RT-PCR.T test and x2 test were used for statistical analysis.Results ① Eighteen of 24 cases in treatment group showed good ACR20 changes after 12 weeks,the effective rate (75%) was significantly higher than that of the control group ( 1/24,4% ).After treatment,DAS28 score of the treatment group (3.0±0.7) was significantly lower than that of the control group(6.9±0.7) (t=-12.39,P<0.01 ).② Compared with the Th17 monocytes of the peripheral blood from active RA patients of treatment group after therapy (0.22±0.20)%,the Th17 monocytes of peripheral blood from active RA patients of the control group (1.63±0.47)% were higher (t=5.61,P<0.05 ).③ Compared with the FoxP3 mRNA of the control group (0.24±0.05),that of the treatment group (0.88±0.18) was significantly higher after therapy (t=7.56,P<0.01 ).Conclusion The clinical parameters of RA patients have improved significantly after the treatment,and the Th17 and Treg cells balance is also restored after rhCTLA-4Ig therapy.
5.COX regression analysis influence factors of the intra-laboratory turnaround time
Zhihui YIN ; Li LIU ; Jianhong ZHAO
Chinese Journal of Laboratory Medicine 2015;(8):573-576
Objective To explore the factors influencing the intra-laboratory turnaround time ( ILTAT) and establish a COX regression model.Methods Data of 5 weeks with a total of 904 cases from the samples of blood routine examinations from January 2014 to June 2014 in The Third Hospital of Xingtai were randomly collected.The records of the samples included test dates , times of arrival , times of test , sample statuses, time consumption, time duration, operators, project portfolios, delay, PLT counts, results of 30-minute treatment and test weeks.Based on SPSS 17.0, the above indicators were analyzed by COX single factor analysis and then COX mutiple-factor regression analysis.Results Within the prescribed time , 421 cases were sent taking up 46.6%of the total samples.The ratios of sent cases in 10, 20, 30, 40 and 50 minutes are 10.4%, 24.7%, 46.6%, 58.7% and 82.1% respectively.The results of COX single factor analysis showed that times of arrival , sample statuses, times of examination, operators, project portfolios and delay had statistical significance for ILTAT ( P<0.05 ).The results of COX multiple-factor analysis indicated that right times of arrival had a positive impact in reducing the turnaround time of samples (Wald=40.446,P=0.000);non-office hours, project portfolios, physical check samples, and handovers were unfavorable factors to shorten ILTAT ( Wald =7.904,38.029,42.874,18.617, P =0.005,0.000, 0.000,0.000);Operator 5 was a favorable factor(Wald=11.039, P=0.001) and Operator 3 and Operator 10 were unfavorable factors ( Wald =6.432, 24.242, P =0.011, 0.000 ); no obvious discrepancy was observed for other operators (P>0.05).Conclusions Times of arrival, times of test, operators, project portfolios and delay were the independent risk factors leading to the delay in ILTAT.Other laboratories could determine the variable number of proportional hazards models based on their sample transport , test procedures and principal influence factors , and carry out quantitative evaluation on the factors in sample processing for improvement.Thus, significant decrease on ILTAT would be achieved.
6.Design of intelligent safety control system in hospital
Zhihui DAI ; Juan LI ; Suqiong ZHANG
China Medical Equipment 2014;(12):52-53
Objective: Design of intelligent safety control system in hospital, in order to effectively safeguard patient’s items or the safety of personnel, improve the management level of hospital. Methods: By RFID (radio-frequency identification), System to realize the real-time monitoring of the patient position and tracking through electronic tag worn by the patient and hospital to install signal receiving device, and monitoring violations by informatization and promptly report to the police. Results: The design of the system in the interests of the parties, prevent the happening of the accident in patients with use of mature information technology. Conclusion: The design of intelligent safety control system in hospital enhances the administrative level of informatization of hospital, the design of the software system has promotion value.
7.Correlation between matrix metalloproteinase-9 and Cystatin C at the early stage of diabetic nephropathy
Xiaojie YANG ; Zhihui WANG ; Haichao LI
Medical Journal of Chinese People's Liberation Army 1981;0(04):-
Objective To observe the changes in the level of serum cystatin C and the expression of matrix metalloproteinase-9 (MMP-9) in the kidney after the development of diabetic nephropathy in streptozotocin (STZ) induced diabetic rats, and to study their correlation. Methods Sixteen female Wistar rats were used to reproduce diabetes by interperitoneal injection of STZ (60mg/kg). Immunohistochemical staining was employed to detect the expressions of MMP-9 in kidneys with image analysis system, and ELISA was used to determine serum cystatin C after 4 or 8 weeks. The correlation between MMP-9 and cystatin C was analyzed by SPSS 10.0. Results The expressions of MMP-9 in diabetic kidneys both at the 4th and the 8th week (8.180?0.905 and 3.948?0.623, respectively) were significantly lower than that of normal control rats (15.620?3.444 and 16.185?3.120, respectively. P
8.Clinical study on the management of angle-closure glaucoma by phacoemulsification
Yunhong FENG ; Zhihui LI ; Xuefu TANG
Chinese Journal of Primary Medicine and Pharmacy 2006;0(05):-
Objective To study the clinical results of phacoemulsification with foldable posterior chamber intraocular lens implantation(PC-IOL) in the management of angle-closure glaucoma with cataract.Methods Phacoemulsification with PC-IOL implantation was performed on 58 eyes(52 cases),after a mean postoperative follow-up of (16.50?6.20) months.Results The best corrected visual acuity was improved in 53 of 58 eyes.The intraocular pressure was reduced from a preoperative mean of (19.56?3.36)mmHg to a postoperative mean of (14.26?3.20)mmHg(P
9.Measurement on the levels of TGF-?_1 and mRNA expression in patients with acute cerebral infarction
Meiping LIU ; Zhihui LIU ; Qingqin LI
Journal of Clinical Neurology 1995;0(04):-
0.05 ),the levels of CSF TGF ? 1 were higher significantly than that of plasma levels and CSF in the controls( P
10.Association between CD40 ligands pregnancy-associated plasma protein-A and angiographic morphology of coronary lesions in patients with coronary heart disease
Xuping LI ; Zhihui ZHANG ; Shenghua ZHOU
Chinese Journal of Interventional Cardiology 1996;0(01):-
Objective The aim of this study was to examine plasma levels of CD40 ligands (CD40L) and pregnancy-associated plasma protein-A in patients with angiography type Ⅱ lesions (representing plaque rupture with or without thrombosis), and to evaluate the role of PAPP-A in the development of plaque disruption. Methods The morphology of the plaques in 68 patients was studied and analyed by means of coronary angiography. According to the morphology of the plaques, the patients were divided into type Ⅰ group (smooth borders, n=19), type Ⅱ group (irregular lesions, n=33), and type Ⅲ group (long lesions, n=16). The plasma level of CD40L, PAPP-A, creatine kinase (CK), and MB isoenzyme of CK (CK-MB) was measured in all the patients. Results Mean plasma CD40L [(3.21?2.08)mg/L] in type Ⅱ group was significantly higher than that in the type Ⅰ group [(1.03?0.98)mg/L, P