1.Appropriate technologies for molecular diagnostic in personalized medicine
Chinese Journal of Laboratory Medicine 2014;(5):324-326
With the development of genomics , bioinformation , engineering , computer science and other fields, it has witnessed explosive growth of molecular diagnostic technologies.More and more technologies are used in desease diagnosis , therapy and prevention , which have presented a huge opportunity and challenge for clinical laboratory.Each technology has corresponding field of application , so it is a crucial problem for clinical laboratory to select appropriate molecular diagnostic technology for personalized medicine.
2.Practice and effect evaluation of gestational diabetes mellitus specialist practice model
Chinese Journal of Nursing 2017;52(5):535-539
Objective To evaluate the outcomes after implementing gestational diabetes mellitus(GDM) specialist practice model. Methods GDM specialist practice model contained four modules(first visit,follow-up visit,hospital-ization,postpartum),eight aspects of practice contents which included specialist evaluation,diet & exercise survey, diet & exercise prescription,GDM health guidance,weight management during pregnancy. Pregnancy outcomes were compared before and after GDM specialist practice. Results GDM specialist practice model was able to signifi-cantly decrease insulin utilization rate,reduce number of hospitalized patients due to poor blood sugar control,short-en length of hospitalization. Conclusion GDM specialist practice model can effectively save medical costs,and GDM specialist nurses play an important role in management of women with GDM.
3.The effect of acupunctural and moxibustional therapy on the apoptosis of breast cell MCF-7
Chinese Journal of Current Advances in General Surgery 2004;0(05):-
Objective:To observe the effect on the apoptosis of breast cancer cell MCF-7 with acupunctural and moxibustional therapy.Methods:Zusanli and Sanyinjiao neiguan in both sides of female Wistar mice were acupunctured and moxibusted.MCF-7 cell was cultirated with the serum.To detecte the cytoxicity with MTT,and detecte the apoptosic rate and Fas expression rate with flow cytometry after 72 hours.Results:The Fas expression was obviously increased upto 57.70% after 72h.The proliferation of MCF-7 was inhibited remarkably.The inhibition rate were 17.55%,24.71% and 31.85% after 12h,24h and 72h.The apoptosic rate were 8.72% and 10.18% after 72h,remarkably higher than the control group(P
4.Effects of Transgenic Biocontrol Bacterium 308R(pCPP430) on Tomato Rhizosphere Bacterial Community
Yan-Qin LI ; Tong-Lin SHI ; Bin-Bin LIU ;
Microbiology 1992;0(04):-
The study aimed at investigation the effect of the transgenic biocontrol bacteria 308R(pCPP430) on the tomato rhizosphere bacterial communities. Strain 308R (Pantoea agglomerans), an adnascent bacterium isolated from tomato, was a biocontrol bacterium. The recombinant cosmid pCPP430 contained the hrp gene cluster of Erwinia amylovora was transformed into 308R Strain. Transgenic biocontrol bacterium 308R(pCPP430) produced Harpin protein which induce hypersensitive response and disease resistance in plants and, surprisingly, increase plant growth. Two complementary methods, sole-carbon-source utilization tests (SCSU) and ERIC-PCR, were used to compare the characterization of bacterial communities from three groups of tomato roots dipped in sterilized water, 308R suspended liquid and 308R(pCPP430) suspended liquid. The cluster analysis and principal components analysis of the number of colonies from SCSU indicated consistent differences in the rhizosphere of each group. Cluster analysis of SCSU data showed that there were consistent differences in the rhizosphere of each group. The rhizosphere bacteria communities of root dipped with 308R(pCPP 430) and 308R have a relative good replication, but the differences of corresponding replicates in dipped with distilled water was increased by degrees. Cluster analysis of ERIC-PCR fingerprints revealed that most of results (eight in ten) have overlaps between roots dipped in water and those dipped in 308R liquid. The methods used in this study may prove a useful approach for the comparison of bacterial communities.
5.Protein MG29 and skeletal muscle aging
Wenhui LI ; Bin ZHAO ; Wanjun YAN
Chinese Journal of Tissue Engineering Research 2009;13(50):9950-9953
OBJECTIVE: To review research advances of Mitsugumin-29 (MG29) protein and its relationship with skeletal muscle aging. DATA SOURCES: A computer-based online search of CNKI (http://www.chkd.cnki.net), Duxiu (http://edu.duxiu.com) and SSReader (http://edu.sslibrary.com) with key words of MG29 and skeletal muscle aging in Chinese; Elsevier SD (http:llwww.sciencedirect.com) and Springer Link (http:llspringer.metapress.comlhomelmain.mpx) with key words of MG29, aging skeletal muscle, sarcopenia. In addition, related articles were manually searched.DATA SELECTION: Inclusion criteria: location, structure and function of MG29; MG29 and skeletal muscle aging; MG29 and exercise; related articles aimed to the content with large impact factor. Exclusion criteria: repetitive studies or Meta analysis.MAIN OUTCOME MEASURES: MG29 has close relationship with skeletal muscle aging.RESULTS: In recent years, extensive researches have been conducted to discover the mechanisms underlying skeletal muscle aging by investigators home and abroad from histology, biochemistry and molecular biology. It is universally accepted that the changes in the cellular homeostatic capacity for Ca~(2+) is a core factor in regulating excitation contraction coupling, and it dynamic balance is the major cause of skeletal muscle aging. MG29, which is located in the membrane of transverse tubule, is a protein that is newly found to modulate Ca~(2+) signal resembling the synaptophysins. Studies have shown that the level of MG29 reduced 50% in old skeletal muscle. Similar phenotypes to aging skeletal muscles have been observed in adolescent muscle null for MG29 which is involved in muscle weakness, increased susceptibility to muscle fatigue, fragmented sarcoplasmic reticulum networks, swollen transverse tubule system, altered calcium sparks, segregated Ca~(2+) reserve and so on. These suggest that MG29 and aging skeletal muscle are closely related.CONCLUSION: It has been confirmed that MG29 is highly correlated with aging skeletal muscle. However, studies concerning MG29 improvement to delay skeletal muscle aging should be conducted subsequently.
6.IN VITRO FERTILIZATION AND CULTURE OF HUMAN OVA
Acta Anatomica Sinica 1955;0(03):-
In the experiments we used T_6 medium prepared by ourselves and mixed with diferent concentrations of human serum albumin or mother's serum, from which we prepared follicular flushing medium, insemination medium and growth medium. Clomiphene citrate and HCG were used for inducing superovulation. The semen was obtained through masturbation and artificially capacitated. A mature ovum and 2-3 drops of capacitated semen were incubated together in insemination medium in the culture box containing 5% CO_2 in air atmosphere at 37℃. The ovum was aspirated and transferred into the growth medium and incubated for 16-17 hours. By this time the ovum was already fertilized with the appearance of 2 pronuclei. About 30 hrs, it normally developed into two-cell stage, 40-44 hrs, it cleavaged into 4-cell stage. After 72 hrs, the fertilized ovum grew into morula. Up to June, 1986 twentythree ova in vitro fertilized and cultured were transfered into 14 mothers, uteri at the four-cell stage. The details of fertilization and the early embryo development in vitro were described.
7.Laparoscopic Ovarian-conserving Surgery for Ovarian Cyst Pedicle Torsion:Report of 62 Cases
Bin ZHANG ; Yan GUO ; Jingjing LI
Chinese Journal of Minimally Invasive Surgery 2014;(7):600-602
Objective To explore the value of laparoscopic ovarian-conserving restoration for ovarian cyst torsion . Methods A total of 62 cases of ovarian cyst torsion , 12 of which were combined with pregnancy , between January 2007 and June 2012 were retrospectively analysed .The surgical management involved laparoscopic high ligation of ovary blood vessels , restoration of the ovary, and resection of ovarian cysts . Results All the 62 cases of laparoscopic restoration were successfully performed with ovarian reservation.The cysts twisted for 180°~1080°, including 19 cases of <360°, 21 cases of 360°~720°, and 22 cases of >720°.The cysts were coloured purple black in 26 cases, purple or normal in 36 cases.The operation time was (57 ±23) min, the intraoperative blood loss was 5-130 ml (mean, 50.6 ml), and anal exsufflation time was (24 ±13) hours.No embolism, infection, and abortion occurred during post-operation.The level of estrogen recovered to normal in 1-3 months postoperatively .Ovulation at the procedure side was found in 43 cases in 6-24 months. Conclusions Laparoscopic ovarian-conserving surgery is a safe procedure for ovarian cyst pedicle torsion .High ligation of ovarian blood vessles and resection of ovarian cysts can not only avoid the possibility of thrombosis but also preserve the ovarian functions .The shortage of this operation is complicated to perform .
8.Inhibition of VEGF gene expression in Hela cell by short interfering RNAs
Bin FAN ; Guangyu LI ; Yan TAN
Chinese Journal of Immunology 2000;0(08):-
Objective:To investigate the interfering effect of siRNA on the expression of VEGF in Hela cells.Methods:Three pairs of siRNA were designed according to the 1-5 extrons sequence of VEGF and synthesized by T7 RNA ploymerase transcription in vitro. To evaluate the inhibition activity of siRNA, Hela cells were transfected via siPORT Lipid. The interfering effect of siRNAs in hRPE cells was examined by semi-quantitative RT-PCR and immunofluorescence technique.Results:The results showed that the three pairs of siRNA could effectively inhibit gene expression of VEGF in Hela cells with the rates of 88.7%, 94.2% and 80.3%. But the 1-base mismatched siRNA and ssRNA(+) didn′t show significant interfering effect. Furthermore, it was found that siRNAs had a dose dependent inhibitory effect(5-10 pmol).Conclusion:The siRNAs synthesized by T7 RNA ploymerase in vitro could effectively and specifically interfere the expression of VEGF in Hela cells, providing a novel approach for gene therapy of tumor.
9.Meta-analysis of influence of TNF-α and NSE levels in cerebrospinal fluid on children with viral encephalitis
Yan WANG ; Huijie HUANG ; Bin LI
Chongqing Medicine 2017;46(24):3366-3369
Objective To systematically evaluate the influence of TNF-α and NSE levels in cerebrospinal fluid on Chinese children with viral encephalitis (VE).Methods Literature about the influence of TNF-α and NSE levels in cerebrospinal fluid on Chinese children with VE,which were published before Nov.1,2016,were searched in databases including CNKI,Wanfang Data,Cochrane Library and PubMed.And the case-control study about the TNF-α and NSE levels in cerebrospinal fluid between Children with VE (VE group) and children without VE (control group) were included in this study,and the quality evaluation was implemented and the data were extracted.And then the RevMan 5.3 was used to carry out the meta-analysis.Results Nine case-control studies were included in this study,involving 536 cases in the VE group and 284 cases in the control group.The results showed that the level of TNF-α and NSE in cerebrospinal fluid of the VE group were all significantly higher than that of the control group,and the differences was statistically significant [SMD=1.75,95%CI:1.56-1.93,P<0.01;SMD=1.34,95%CI:1.17-1.51,P<0.01].Conclusion The levels of TNF-α and NSE in cerebrospinal fluid are positively correlated with the incidence of VE in Chinese children.
10.Significance of Changes of Tumor Necrosis Factor-? and Interleukin-6 Level in Children with Acute Viral Myocarditis
yan, LI ; wen-ping, ZHOU ; bin, LUAN
Journal of Applied Clinical Pediatrics 2006;0(13):-
Objective To explore the clinical significance and changes of tumor necrosis factor-?(TNF-?)and interleukin-6(IL-6)level in children with acute viral myocarditis(AVM).Methods TNF-? and IL-6 level in serum from 53 AVM children and 20 healthy children were measured by radio-immunoassay and enzyme-linked immunosorbent assay(ELISA).The relation between the levels of TNF-? and IL-6 in serum with the occurrence and development in acute viral myocarditis was analyzed.Results Thirty-two were males and 21 females in the 53 AVM children.The ages ranged from 3-11 years old.There were 12 males and 8 females in control group.The serum level of TNF-? and IL-6 were(526.7?32.9),(3.23?0.53)mg/L in AVM group and(383.1?27.5),(1.63?0.22)mg/L in control group.There were significant difference between the 2 groups(Pa