1.Clinical study on the relationship between plasma level of homocysteine and progressive ischemic stroke of carotid artery system as well as carotid artery atherosclerosis
Clinical Medicine of China 2012;28(5):471-475
Objective To explore the role of plasma level of homocysteine ( Hey ) in progressive ischemic stroke (PIS)of carotid artery system and to investigate the relationship between Hcy and carotid artery atherosclerosis(AS).Methods Plasma Hcy concentrations were measured in 68 patients with progressive ischemic stroke of carotid artery system (PIS group)and 72 patients with non-progressive ischemic stroke of carotid artery system ( non-PIS group ).Plasma Hcy level and carotid artery intima-media thickness ( IMT ) were compared among PIS group and non-PIS group as well as normal control group.The linear correlation between plasma Hcy level and IMT in PIS group was analyzed.Results Plasma Hcy concentrations was respectively (22.52 ± 5.26) μmol/L,( 16.38 ± 4.23) μmol/L and( 10.13 ± 2.16) μmol/L in PIS group,non-PIS group and normal control group( F =56.87,P < 0.01 ).Compared PIS group and non-PIS group with normal control group,the differences were statistically significant ( P < 0.01 ).And there was also significant difference on plasma Hcy levels between PIS group and non-PIS group( P < 0.01 ).The thickness of carotid artery IMT was respectively(1.12 ± 0.34)mm,(0.96 ± 0.27)mm and(0.43 ± 0.21 )mm in PIS group,non-PIS group and normal control group( F =28.47,P < 0.01 ).Compared PIS group and non-PIS group with normal control group,the differences were statistically significant( P < 0.01 ).And there was also significant difference on IMT between PIS group and non-PIS group ( P < 0.01 ).In PIS group plasma Hcy level was positively correlated with the carotid artery IMT ( r =0.687,P < 0.01 ).Conclusion The plasma Hcy level is closely related to the occurrence and development of carotid artery atherosclerosis and PIS of carotid artery system,detection of plasma Hcy level helps to predict the occurrence of PIS of carotid artery system and provide an evidence for the therapy decision.
2.Correlation of smokers in catenin wnt/β signal transduction pathways in expression and research on the incidence of squamous cell carcinoma of the lung
Clinical Medicine of China 2017;33(2):149-154
Objective To investigate the correlation of smokers in wnt/β-catenin signaling pathway activation as well as their correlation with lung squamous cell carcinoma incidence.Methods In the Department of Respiratory Medicine of the People's Hospital of Wuhan University,30 cases lung squamous cell carcinoma patients with a history of smoking,30 cases lung squamous cell carcinoma patients with no history of smoking,30 cases bronchiectasis patients with a history of smoking,30 cases bronchiectasis patients with no history of smoking were chose respectively as A group,B group,C group and D group.After the patients were treated by surgery,the removal of diseased tissue used immunohistochemical staining for CD68 + testing,TNF-α,wnt-2,β-catenin and the expression of TCF-4 were measured by using Western blot hybridization method,then wnt-2,β-catenin,TCF-4 transcription of mRNA concentrations were detected by using RT-PCR method.Results Immunohistochemical studies showed that cells in TNF-α,CD68 + expression of A group,B group,C group and D group were respectively 0.895±0.036 and 0.931±0.237,0.125±0.018 and 0.631±0.064,0.083±0.042 and 0.311±0.062,0.053±0.004 and 0.196±0.020,the differences were statistically significant(P<0.05).Westblot test Results showed that wnt-2,β-catenin,TCF-4 expression level showed a gradually decreasing trend,the difference was statistically significant(P<0.05),testing of RT-PCR showed that wnt-2,β-catenin,TCF-4 translation level showed a gradually decreasing trend,the difference was statistically significant(P<0.05).Conclusion Smoking for body wnt/β-catenin pathway has a cell activation,after cigarette activate wnt/β-catenin signaling pathway in the incidence of lung squamous cell carcinoma of the body will greatly enhance the smoking crowd wnt/β-catenin signaling transduction circumstances.The detection of wnt/beta-catenin signal transduction in smokers can be used to indicate the occurrence of lung squamous cell carcinoma.
3.Treatment of 30 Cases of Post-herpetic Neuralgia by Acupuncture Combined with Point Injection
Journal of Acupuncture and Tuina Science 2008;6(3):182-183
Objective: To observe the effect of acupuncture around the diseased region combined with point injection on post-herpetic neuralgia. Methods: Point injection on 30 cases in the related segments of spinal cord after needling around the diseased region. Results: Twenty-seven cases got effect and the total effect rate was 90%. Conclusion: Acupuncture combined with point injection has remarkable curative effect on post-herpetic neuralgia.
4.Expression and significance of TRAIL and its receptor DR5 in murine myocardium with acute viral myocarditis
International Journal of Pediatrics 2010;37(4):345-348,441
Objective To deterine the expression of TNF-related apoptosis inducing ligand (TRAIL) and its receptor DR5 in murine myocardium with acute viral myocarditis(VM).Methods We builted the model of VM.Eight mice of the VM group and the normal control group were sacrificed on the 7th,10th,14th,21st,28th day after inoculation CVB3 virus.The myocardial histopathological scores were counted.The terminal reansferase-mediated dUPT-biotin nick end-labeling (TUNEL) assays was used to quantified apoptosis rate.The expression of TRAIL and DR5 protein and mRNA were determined by the method of immunohistochemistry and reverse-transcription polymerase chain reaction (RT-PCR).Results The expression of TRAIL and DR5 protein and mRNA were found in myocardium of both the normal control group and the VM group.The expression of TRAIL protein of the VM group(14th) were significantly higher than which in the normal group at the same time and the VM group(7th)(F=9.17,P<0.01).The DR5 protein of the VM group(10th,14th,21st)were significantly higher than which in the normal group at the same time and the VM group(7th)(F=13.32,P<0.01).The expression of TRAIL and DR5 protein were positive correlated with the myocardial histopathological scores and the apoptosis rate.The expression of TRAIL mRNA of the VM group(10th) were significantly higher than which in the normal group at the same time and the VM group(7th)(F=10.86,P<0.01).The DR5 mRNA of the VM group(10th,14th)were significantly higher than which in the normal group at the same time and the VM group(7th)(F=22.75,P<0.01).Conclusion High characteristic expressions of protein/mRNA TRAIL and DR5 were observed in the myocardium of mice with VM.The level was positive correlationed with the account of pathology and the rate of apoptosis.The apoptosis induced by TRAIL and DR5 may participate in the pathophysiological processes of VM.
5.Advances and the current status in chemotherapy-free management for indolent lym-phomas
Chinese Journal of Clinical Oncology 2016;43(5):216-219
Indolent B-cell lymphomas constitute a slow growing cancer of the lymphatic system. These lymphomas mainly include fol-licular lymphoma, chronic lymphocytic leukemia/small lymphocytic lymphoma, Waldenstom macroglobulinemia, marginal zone lym-phoma, and low malignant mantle cell lymphoma. These lymphomas are sensitive to chemotherapy and/or immunochemotherapy, but they cannot be cured. Furthermore, patient age at diagnosis, patient age at time of first onset or subsequent relapses, and compli-cations often influence the chemotherapy curative effect. At present, recent progress has been achieved in our understanding of dys-regulated pathways and immunologic anti-tumor responses in indolent lymphoma. In particular, the breakthrough of non-cytotoxic drugs renderschemo-freetreatment a near-future reality. In this review, we highlight these promising approaches, such as the com-bination of anti-CD20 antibodies with immunomodulatory drugs, mAbs directed against other surface antigens, and programmed cell death 1 (PD-1) receptor inhibitor or B-cell receptor signaling pathway inhibitors. Future phase III studies will evaluate the efficacy of these drugs in the context of non-chemotherapy and further clarify treatment status.
6.Comparation of video-assisted thoracoscopic surgery and open-chest operation on surgery trauma
International Journal of Surgery 2013;40(9):595-598
Objective By means of control test,to compare the surgical trauma and perioperative recovery between video-assisted thoracoscopic surgery(VATS) and conventional thoracotony for lobectomy.Methods Eightysix non-small cell lung cancer patients who had undergone operations from April 2010 to April 2011 were chosen.According to operative mcthods,the patients were divided into two groups:video-assisted thoracoscopic surgery group(VATS) and open chest group(OT).The protein and hormone level of serum Cortisol(Cor),growth hormone (GH),triiodothyronine (T3),tetraiodothyronine (T4),C-reactive protein (CRP) were selected as indexes to investigate the surgical trauma on non-small cell lung cancer patients.The duration of operation,quantity of lymph node dissection,chest tube duration,postoperative hospital stay,postoperative complications were chosen as indexes to measure operation result and perioperative recovery.Results Under the condition that patients undergone the same operation level(lobectomy + Systemic lymph node dissection),there was no ststistical significance in preoperative level of serum Cor,GH,T3,T4,CRP.The postoperative concentrations of serum Cor,GH,T3,T4,CRP on the 1 d,2 d,3 d and 7 d were lower in VATS group,and there were obvious statistical significance(P <0.01).And there were obvious statistical significance in duration of operation (P < 0.01),postoperative hospital stay(P < 0.01),quantity of lymph node dissection (P =0.477).There were no obvious statistical significance in chest tube duration (P =0.508),postoperative complications (P =0.787).Conclusions VATS lobectomy is able to achieve a same result for radical treatment outcone and safety to routine open chest lobectomy in patients.Compared witt routine open chest lobectomy,VATS lobectomy has less surgical trauma,much rapid recovery,it should be recommended for patients with non-small cell lung cancer.
7.Pulse wave: the bridge connecting traditional Chinese medicine with Western medicine
Journal of Integrative Medicine 2008;6(9):891-6
Pulse wave, a research focus in both traditional Chinese medicine and Western medicine, which contains a wealth of human physiological and pathological information, has always been the concern of medical practitioners. On the basis of the review on the development of the pulse wave theory and its applications, the existing problems in this field are discussed in this paper. On the basis of the status quo of pulse wave information extraction methods and the utilization of pulse wave in traditional Chinese and Western medicine, a more in-depth study on pulse wave is proposed to make it a bridge connecting traditional Chinese medicine with Western medicine.
8.The experimental study of the effect of medicine-induced posterior vitreous detachment on proliferative vitreoretinopathy
Chinese Journal of Ocular Fundus Diseases 2009;25(1):55-58
Objective To observe the effect of medicine-induced posterior vitreous detachment (PVD) on proliferative vitreoretinopathy (PVR).Methods.PVR was induced in the left eyes of 24 pigmented rabbits by intravitreal injection with platelet rich plasma.The rabbits were randomly divided into two experimental groups (group A and B) and one control group with 8 eyes in each group.Three hours later,the eyes in group A and B and the control group underwent intravireal injection with 1 U plasmin 0.05 ml+ 20 U hyaluronidase 0.05 ml,plasmin 0.1 ml,and balance salt solution 0.1 ml,respectively.The grade of PVR was recorded 1,7,and 28 days after the intravitreal injection,and the eyes were examined by flash electroretinogram (FERG),B-scan,and retinal histopathological examination.Results The PVR models of rabbit eyes were induced successfully.On the 7th day after injection,complete and partial PVD was found in 5 and 3 eyes respectively in group A;partial PVD in 5 eyes and no complete PVD was observed in group B;there was no PVD in the other 3 eyes in group B and also in the eyes in the control group.On the 28th day after intravitreal injection,PVR grade of group A and B were both obviously lower than that of the control group(D= 75.6,98.9;P = 0.003,P = 0.011) ;On the 7th and 28th day after injection,the b-wave amplitude in group A and B was significantly higher than that in the control group;PVR grade of the PVD eyes was lower than that of non-PVD eyes;PVR grade of the complete PVD eyes was only 0 ~ 1.Conclusions Three hours after the PVR models of rabbit eyes were induced,complete PVD induced by intravitreal injection of plasmin combined with hyaluronidase could prevent the development of PVR of rabbit eyes in some degree;partial PVD induced by plasmin alone or combined with hyaluronidase could relieve the development of PVR.
9.Study of genetic variation of the structural region of hepatitis C virus
Journal of Third Military Medical University 2001;23(3):296-299
Objective To study the role of the structural gene variation of hepatitis C virus(HCV) in the chronicity of HCV infection. Methods Serum samples from four HCV infection acquired during six-month follow up and four patients with chronic hepatitis C type were obtained. A 1-kb fragment containing the 3' half of core ,completed E1 and 5' half of E2/NS1 was amplified by nested reverse transcription polymerase chain reaction (RT-PCR). For each,30 cloned cDNAs were examined by a method that combined heteroduplex analysis (HAD) and a single-stranded conformational polymorphisim (SSCP)assay to optimize selection of clones with unique gel shift patterns (clonotypes )as a measure of the quasispecies complexity. Results There was obvious difference between the SSCP bands of cloned cDNAs representing core-E1 and E2 region,but more distinct difference between heteroduplex and the homoduplex of clones spanning E2 region which accurately reflected the degree of heterogeneity. Quasispecies complexity was higher in those with persistent viremia than those with acute viremia. Conclusion HCV persistence is associated with complex quasispecies in viral structural region.
10.Lipoprotein assay: new method brings new insight
Chinese Journal of Laboratory Medicine 2014;37(7):481-484
Dyslipidemia is one of the most important pathogenic factors of atherosclerotic cardiovascular disease.Detection of lipid and lipid metabolism related indicators is important in diagnosis and treatment for dyslipidemia,as well as risk assessment and prevention of cardiovascular disease.In recent years,with advances in technology and research,focuses on lipoproteins gradually extended from quantity changes toqualitative changes.The emphasis also turns to some lipid metabolism related proteins,susceptibility genes,DNA methylation,miRNA and lipidomics.Relevant researches have become a hot topic in this field.