3.Comparison of International Medical Educational System and the Reformational Reflection in China
Chinese Journal of Medical Education Research 2002;0(01):-
In the paper, the authors not only analyzed and compared the international medical educational system, but also reviewed the medical educational system flux in China. The authors put forward several advices for perfect medical educational system according to international trend.
4.Current study of Toll-like receptor and fundus disease
Chinese Journal of Experimental Ophthalmology 2013;31(10):988-991
Toll-like receptors (TLRs) can recognize pathogens associated molecular of micro-organisms,leading to activation of the downstream signal transduction pathway and participate in innate and adaptive immune response.TLRs can also recognize endogenous danger signaling molecule and therefore be involved in pathogenesis of many low-grade chronic inflammatory and autoimmune diseases.TLRs are always expressed on immune cells,and recent studies confirmed that retinal pigment epithelial (RPE) cells also express TLRs.This review focuses on the research progress of fundus diseases and TLRs,such as the recognition of exogenous pathogenic microorganisms and endogenous danger signals in fundus,induction of inflammatory response,phagocytosis of photoreceptor outer segment by RPE and angiogenesis of fundus diseases.
5.Immunometabolism and regulatory T cells
Chinese Journal of Microbiology and Immunology 2017;37(5):396-399
Recent studies have shown that immune cells play an important role in the development of non-immune diseases.Regulatory T cells (Treg) are a group of T cell subsets which have immunoregulatory and immunosuppressive functions.Abnormalities in the number and function of Treg cells may cause immune imbalance, which leads to the development of diseases.Immunometabolic disorders may in turn affect the generation, proliferation and function of Treg cells.Clarification of the relationship and interaction between immunometabolism and Treg cells will make it possible to treat metabolic diseases with cellular immunotherapy.
6.Clinical Analysis of Primary Small Intestinal Tumor in 31 Cases
Journal of Medical Research 2006;0(01):-
Objective To explore the clinical characteristics and diagnosis of primary small intestinal tumor(PSIT). Methods Retrospective analysis of the clinical and pathological data of the 31 PSIT cases was made. Results Duodenum was the most common site 67.74% for PSIT. The confirmed diagnosis rate was 54.84%(17/31)(duodenum was 66.67%,14/21; ileum and jejunum was 30%, 3/10, respectively ). 3 cases were benign tumors and 28 were malignant tumors.The adenocarcinoma was the most frequently seen malignant PSIT followed by lymphoma and often in duodenal. The features of the small intestinal tumor could be abdominal pain,abdominal mass,hemorrhage,obstruction,jaundice and fever.The chief method for diagnose was barium meal X-ray examination, especially with the hypotonic contrast X-ray examination and endoscopy.Superior mesenteric arteriography sometimes helped in determing site of gastrointestinal haemorrhage. CT scan could be helpful in diagnosis. Conclusion Duodenal adenocarcinoma is most common PSIT,followed by malignant lymphoma.Endoscopy is the best way to find out the tumor located in duodenum and hypotonic contrast X-ray examination is effective in diagnosis and locating of small bowl tumors.Superior mesenteric arteriography is a good way to find out angioma and leiomyoma. CT scanning are also helpful.
7.Effect of metformin on the inhibinB,activinA and follistatin in polycystic ovary model rats
Chinese Pharmacological Bulletin 2003;0(10):-
Aim To observe the effect of metformin(MF)on inhibinB,activinA and follistatin in rat of polycystic ovary(PCO),analyzing the possible therapeutic mechanism and therapeutical effect from ovaries local cytokine.Methods The PCO rat models were set by insulin combined with human chorionic gonadotrophin(HCG).The levels of serum gonadal hormone and insulin(INS)were detected by radioimmunoassay.Using the sandwich ELISA technique the expressed level of serum inhibinB(INHB),activinA(ACTA)and follistatin(FS)was detected.Results Metformin could decrease the level of testosterone(T),luteotropic hormone(LH)and INS in rat serum,but it increased the level of ACTA in rat serum and the rate of ACTA/INHB.There was negative correlation between INS and ACTA,and positive correlation between INS and INHB.Conclusion MF can regulate the expression of ovaries local cytokines such as INHB,ACTA and FS.
8.Antibacterial Activity and Antibacterial Action Sites of Bovine Lactoferricin
Mei-Chen AN ; Ning LIU ;
Microbiology 2008;0(10):-
Bovine Lactoferricin is a fragment of polypeptide which derives from N-terminal of bovine lactoferrin when it is digested by pepsin in acid condition. It has many biological functions. This study was designed to research the antibiosis spectrum of LfcinB and the key functional active site of the LfcinB by amino acid substitution and peptide sequence modification. Antimicrobial spectrum of the artificial synthesized LfcinB was determined by agar-well diffusion method. The antibacterial active sites were confirmed by minimal inhibitory concentration assays. After the Cysteine at the third site and the tryptophan at the eighth site of LfcinB were substituted by alanine, or two cysteine of LfcinB were respectively, the minimal inhibitory concentration of the three artificially modified LfcinBs was assayed. Results showed that LfcinB had a broad-spectrum of antibiosis, it could restrain various bacterials, such as Gram-positive bacteria, Gram-negative bacteria, fungus and mycetes. LfcinB was stable to heat and pH, it could not be inactivated by many protease. The tryptophan at the eighth site and the intramolecular disulfide bond formed between two cysteins played a key role for antibiosis, as the functional active sites of LfcinB.
9.Clinic study on treating of cerebral infarction and carotid atherosclerosis by atorvastatin combined naoxintong capsule
Chinese Journal of Primary Medicine and Pharmacy 2013;20(3):391-393
Objective To investigate the effect of Atorvastatin Combined Naoxintong Capsule treats to cerebral infarction and carotid atherosclerosis.Methods 134 patients with cerebral infarction and carotid atherosclerosis were diagnosed by MRI or CT scan.They were randomly divided into two groups.67 cases were given atorvastatin versus aspirin received routine treatment in the control group and 67 cases were used Naoxintong capsule in observation group on the basis of routine treatment in the observation group.The blood lipid,serum high sensitive C-reactive protein (hs-CRP) level,neural function defect score (NIHSS),carotid artery intima-media thickness (IMT) were comperred before and after treatment in two groups for treated with 1 courses (6 months).Results The blood lipid had no significant difference between two groups before and after treatment (P < 0.05).The IMT,NIHSS score of high sensitivity C-reactive protein levels had no significant difference in two groups before and after treatment (P < 0.05).The scores of NIHSS,IMT,high sensitive C-reactive protein level respectively (10.08 ± 1.82) %,(1.06 ± 0.13)mm,(3.89 ± 1.41) mg/L of observation group were more decreased significantly than the control group (respectively (13.92 ±2.01)%,(1.24 ±0.15)mm,(5.02 ± 1.52) mg/L after treatment.Conclusion Atorvastatin Combined Naoxintong Capsule in treatment of cerebral infarction and carotid artery gruel kind hardening shows good therapeutic effect,it is worth for clinical use.
10.Application of proteomics in the studies of cerebral ischemic preconditioning
International Journal of Cerebrovascular Diseases 2009;17(1):63-66
Proteome is defined as all proteins expressed in a cell, a tissue or an organism. Proteomics, a science of understanding the life activity law at the whole protein level, takes proteome as a research object; it is also a scientific method for quantitative detection of one or more protein populations or proteomes in a cell or tissue. Cerebral ischemic preconditioning has been one of the research hotspots in the field of neuroscience for decades. Its neuroprotec-five mechanism is associated with the changes of protein expression levels after cerebral ischemia, Therefore, proteomics has become more and more important in its mechanism study. This article mainly presents the major techniques of proteomics and their application in the studies of cerebral ischemic preconditioning.