1.Application of transgenic animal in hypertrophic cardiomyopathy
Journal of Peking University(Health Sciences) 2003;0(06):-
Hypertrophic cardiomyopathy is an autosomal-dominant disease.Disease-causing mutations have been found in genes encoding structural components of the thick and thin filament systems of cardiac myocyte;it has therefore been named as a disease of sarcomere.Many approaches have been used to characterize the pathogenesis of the desease.Transgenic animal models have been created to gain further insight into the pathogenesis of this disease.Most of these models has been made in mice;however,recently a transgenic rabbit model has been created.In addition,there are several natural-occurring forms of HCM in animals.The discovery of responsible genes and the elucidation of the molecular mechanisms of pathogenesis through the use of animal models promise improved and early diagnosis and the potential for mechanism-based therapeutics.
2.PROJECTION OF THE CALBINDIN D-28K NEURONS RECEIVING VISCERAL NOCICEPTIVE INFORMATION FROM INTERSTITIAL NUCLEUS OF THE SPINAL TRIGEMINAL TRACT TO NUCLEUS OF THE SOLITARY TRACT IN THE RAT
Wenling MA ; Wenbin ZHANG ; Yufei ZHANG
Acta Anatomica Sinica 1954;0(02):-
Objective To investigate the calbindin D\|28K (CB) neurons that receive the visceral nociceptive information in the interstitial nucleus of the spinal trigeminal tract (INV) directly project to the nucleus of the solitary tract (NTS). Methods Triple\|labeled methods of fluorogold (FG) retrograde tracing combined with Fos and CB proteins immunofluorescence histochemistry after formalin stimulating upper alimentary tract. Results Most of FG\|retrograde labeled neurons distributed in the paratrigeminal nucleus (PaV) and the dorsal paramarginal nucleus (PaMd) of INV ipsilateral to the FG injection. About 71\^2% of FG\|retrograde labeled neurons contained CB and 31\^5% of FG/CB double\|labeled neurons exhibited positive Fos\|immunoreaction in INV.Conclusion The results suggested that a part of neurons containing CB in INV receive the visceral nociceptive information and directly project to NTS. CB neurons might play an important role in transmitting visceral nociceptive information from INV to NTS. [
3.Double Fluorescent Labeling Restriction Method for Microarray Applications
Wenli MA ; Wei MENG ; Wenling ZHENG
Acta Anatomica Sinica 2007;38(4):442-445
Objective To study the double restriction fluorescent labeling (DRFL) method for fluorescent labeling of trace DNA samples and its effect in enhancing the pathogen detection sensitivity of microarray assays. Method SARS-CoV RNA samples were reversely transcribed and then further amplified with the restriction display (RD)-PCR and fluorescently labeled by conventional restriction labeling directly with Cy-universal primer and the novel double labeling with Cy-universal primer and CydNTP. The labeled samples were applied to the microarray with the viral probes, processed and analyzed. Results Compared with the conventional method, DRFL labeling resulted in 3. 5835 times higher fluorescent intensity of all the SARS probes on average, even though increased fluorescent intensities for different probes varied considerably. Conclusion Signal to noise ratio can be enhanced by the DRFL method which improves the sensitivity of microarray technology in trace pathogen detections.
4.On Improving Effects on Military Hygiene Teaching in Nursing Specialty
Wenling MA ; Zhengyin LI ; Haihong QIN
Chinese Journal of Medical Education Research 2006;0(09):-
Several problems were existed in present military hygiene teaching.In recent years,integrated reforms were done about the improving undergraduate and teacher's activities,strictly choosing teaching contents,doing well extra curriculum,and serious examination in nursing teaching.Furthermore,the new presumptions were also discussed.
5.Establishing a Characteristic High-level Course Standard of Nursing Specialty in Military Hygiene
Wenling MA ; Zhengyin LI ; Haihong QIN
Chinese Journal of Medical Education Research 2002;0(01):-
The new course standard of nursing specialty in military hygiene was established against the main problems in military hygiene teaching and considering the peacetime and wartime need of nursing post.In this paper,guiding ideology,content choosing and the request of operational skill of this standard were discussed in detail.
6.Highlighting Military Especially Naval Characters and Constructing the Process Management Mode of Graduate Education
Wenling MA ; Xuan ZHENG ; Junsheng GUO
Chinese Journal of Medical Education Research 2006;0(11):-
Graduate education is a major way for training advanced talents in the field of military preventive medicine,and the process management is the key step for training talents with high quality of theoretic creation and experimental skills.In order to cultivate excellent graduate students with distinct military especially naval characters,in recent years,we have made certain exploration and practices during the education management process,facilitating construction of educational and experimental platform,intensifying theoretic ability and lab skills,improving research project selection and design,emphasizing middle evaluation and so on.Now a new type of process management mode of graduate education in military preventive medicine with significant military character has come into being.
7.Bioinformatics analysis on the treatment mechanisms of Qishen-Yiqi fomular for ;myocardial infarction
Guanchuan LIN ; Wenling ZHENG ; Wenli MA
International Journal of Traditional Chinese Medicine 2016;38(5):436-441
Objective Based on the age of big data, the treatment mechanisms of Qishen-Yiqi(QSYQ) for myocardial infarction was focused. Methods All the data stemmed from Gene Expression Omnibus (GEO). For ensuring the efficacy genetic molecular, differentially expressed genes were discobered by Qlucore Omics Explorer (QOE). And then gene set enrichment analysis was performed by Database for Annotation, Visualization and Integrated Discovery online Gene Annotation system(DAVID) for showing the genes functions during bioprocess. In the end, the predicted genes and proteins interactions networks were demonstrated by Gene/protein interaction database (STRING). Results The main biological process involved up regulating the expression of some specil genes such as NFIL3, ARNTL, DBP, FGD4 and nuclear receptor genes like NR1D1, NR1D2 while using QSYQ treatment. In such case, BHLHE40/41 was regulated. Conclusion Traditional Chinese medicine, QSYQ, could influence the expression of genes of cytothesis, inflammatory and enzymatic activity as its effect of the molecular mechanism, in order to treat and cure the myocarditis infarction.
8.Expression and functional study of human recombinant chemokine-like factor I in Drosophila S2 cells
Yingmei ZHANG ; Ting LI ; Yaxin LOU ; Wenling HAN ; Dalong MA
Chinese Journal of Microbiology and Immunology 2008;28(6):481-485
Objective To express human chemokine-like factor 1 (CKLF1) in Drosophila S2 cells and study its function. Methods The pMT/V5-His-CKLF1 expression plasmid was constructed and transfected into Drosophila S2 cells. The positive clones were selected through PCR and RT-PCR. The culture medium was analyzed by Western blot with anti-CKLF1 polyclonal antibody. Chemotaxis and MTT assays on human peripheral blood and C2C12 cells, respectively, were then carried out with the medium. Results CKLF1 was transcribed efficiently in S2 cells. The expressed CKLF1 protein could be detected in the culture supernatant by Western blot, which showed weak chemotactic activity on both human peripheral blood neutrophils and lymphocytes as well as enhancing effect on the proliferation of C2C12 cells. Conclusion CKLF1 was expressed successfully in Drosophila S2 cells and secreted into the culture medium. The recombinant CKLF1 expressed in Drosophila cells can chemoattract leucocytes and promote the proliferation of C2C12 cells.
9.Preparing the probes of cDNA microarray in detection of the hepatitis D virus with PCR products
Zhaohui SUN ; Wenling ZHENG ; Bao ZHANG ; Wenl MA
Journal of Medical Postgraduates 2003;0(11):-
Objectives:To preparing the probes of cDNA microarray in detection of the Hepatitis D virus. Methods:The specific primers of PCR were designed accordion to the conserved region of HDV. Results: Sequences were aligned , and the results showed that the products of PCR amplification were the specific gene fragments of HDV. Conclusions:Using PCR amplification products to prepare gene chip probe was a quickly, simple effective method.
10.Effects of chemokine-like faotor 1 (CKLF1) on proliferation and metabolism of chondrocytes
Aixin CHENG ; Wenling HAN ; Dalong MA ; Siqua LOU
Journal of Peking University(Health Sciences) 2003;0(04):-
Objective: To investigate the effects of chemokine like factor 1 (CKLF1) on proliferation and metabolism of chondrocytes. Methods: Cell culture, 3H TdR and 3H Proline incorporation methods were used. Chondrocytes were harvested from rabbit articular cartilage. First passage cells were seeded on 96 well plates. After synchronization,the medium was replaced by DMEM containing 5% FCS with various concentration of CKLF1 conditioned medium. The synthesis of mucopolysaccharide was detected by Saffraan O staining. The transcription of inducible nitricoxide synthase (iNOS) was detected by semi quantitative RT-PCR. Results: CKLF1 inhibited the DNA, collagen and mucopolysaccharide synthesis significantly, meanwhile, stimulated the transcription of iNOS. Conclusion: CKLF1 inhibits the proliferation and matrix synthesis of chondrocytes, which might be an important factor resulting in cartilage destructive lesions. CKLF1 may exert its effects on chondrocytes through iNOS pathway.