1.The role of dendritic cells in atherosclerosis
Peng LIU ; Yajie LIU ; Shaohui CHEN
International Journal of Cerebrovascular Diseases 2011;19(11):867-871
Both basic and clinical studies have confirmed that inflammatory response plays an important role in the occurrence and development of atherosclerosis (AS) as well as its caused clinical events.The aggregation phenomena of T lymphocytes,macrophages and dendritic cells (DCs) can be observed in intima and atherosclerotic plaques in the event of atherosclerosis.As the most important antigen-presenting cells activating T lymphocytes,DCs have the important functions of determining T lymphocyte activation,apoptosis,and aggregation.This article reviews the correlation between DCs and atherosclerotic lesions.
2.P-selectin and ischemic cerebrovascular disease
Yajie CHEN ; Yi YANG ; Mingshan REN
International Journal of Cerebrovascular Diseases 2009;17(12):948-951
P-selectin is also known as CD62. It promotes the occurrence of ischemic cerebrovascular disease by mediating the activation of endothelial cells and platelets as well as the processes of the formation and development of atherogenesis. A number of studies have confirmed that P-selectin plays important roles in the occurrence and development of the risk factors (such as hypertension, diabetes, hypercholesterolemia, heart disease, smoking, alcohol abuse and hyperfibrinogenemia) for ischemic cerebrovascular disease. It remains to be confirmed by further studies whether P-selectin can be used as an independent risk factor for predicting the occurrence of ischemic cerebrovascular disease.
3.Periodic investigation on physical exercises of patients with primary hypertension
Hui XUE ; Yajie LI ; Xianghui CHEN
Chinese Journal of Practical Nursing 2008;24(12):64-66
Objective To explore the current status of physical exercises of patients with primary hypertension and provide basis for selective nursing intervention. Methods Investigation was carried out in 238 patients patients with primary hypertension in a third-grade and first-class hospital in Guangzhou on their physical exercises using the theory of "periodic behavior changing model". The results were ana|yzed. Results Patients who didn't plan to take physical exercises account for 19.3%,who planned to take it was 15.1%,who prepared to take it was 20.2%,who were taking it was 8.8% and who were maintaining it was 36.6%.The age and duration of illness course significantly influence the distribution of taking exercises in different stages, P<0.05.While gender and education background were not important influencing factors. Conclusion We should pay attention to increase the recognition of patients with primary hypertension to take physical exercises autonomously,especially the young and middle-aged patients.
4.The Predictive and Monitoring Value of VEGF in Ovarian Hyperstimulation Syndrome
Yajie ZHANG ; Zijiang CHEN ; Jianye WANG
Journal of Chinese Physician 2001;0(02):-
Objective To explore the value of vascular endothelial growth factor(VEGF) in predicting and mornitoring ovarian hyper-stimulation syndrome(OHSS). Methods 11 cases of OHSS patients and 16 cases of high-responder patients were enrolled in this study, respectively from IVF-ET or ICSI programme. Serum VEGF level before giving gonadotrophin, on the days of hCG administration, OPU and ET, and at the 7th and 14th days after ET as well as the VEGF level of follicular fluid (FF) on the day of OPU were measured. The serum VEGF of hospitalized women with severe OHSS were also measured during the whole therapy. Results Compared with high-responder patients, serum VEGF level on mid luteal and late luteal phases significantly increased in OHSS patients, and FF VEGF level obviously increased as well. Serum VEGF level gradually decreased along with clinical and biological improvement of OHSS. Conclusion FF VEGF level could predict the occurrence of OHSS, and serum VEGF level could monitor the progress of OHSS.
5.Artificial cycle therapy of acupuncture and moxibustion for irregular menstruation.
Jie WU ; Lijie YANG ; Yajie CHEN ; Qing LI ; Lin CHEN
Chinese Acupuncture & Moxibustion 2015;35(3):287-289
Through the discussion on TCM physiological characters of females in follicular, ovulatory, luteal and menstrual phases and treatment principles, the clinical application of artificial cycle therapy of acupuncture and moxibustion was introduced for irregular menstruation and the typical cases were attached. It is suggested that the menstrual cycle follows the growth-consumption rule of yin, yang, qi and blood. The corresponding treatment principles should be applied in accordance with the change rule of menstrual cycle. Hence, it is worth to adopt the artificial cycle therapy of acupuncture and moxibustion for irregular menstruation in clinical application.
Acupuncture Therapy
;
Adult
;
Female
;
Humans
;
Menstruation
;
Menstruation Disturbances
;
physiopathology
;
therapy
;
Moxibustion
6.Endovascular treatment in 25 patients with carotid-cavernous sinus fistula
Lei WANG ; Zhen GU ; Yajie LI ; Yuyun CHEN ; Chengguo DAI
International Journal of Cerebrovascular Diseases 2010;18(4):259-265
Objective To summarize the preliminary experience of coils, Onyx and covered stents for the treatment of carotid-cavernous sinus fistula (CCF). Methods Of the 25patients with CCF, 22 were traumatic CCF, and 3 were spontaneous CCF; the fistula orifices of 14 patients were located in the cavernous segment of right internal carotid artery (ICA), and 11were located in the cavernous segment of left ICA. According to the Barrow classification,Types A, C, and D were 22,2, and 1, respectively. Eighteen patients were treated with Guglielmi detachable coils alone, 1 was treated with Guglielmi detachable coils and Onyx, 2 were treated with Onyx alone, and 4 were treated with covered stents. Results Intracranial bruit disappeared immediately in all patients after the procedures. Postoperative angiography showed complete occlusion of the fistula orifices, the symptoms disappeared after 1 to 20 days, and there were no death and procedure-related complications. The recanalized ICAs were patent in patients (12/18) treated with coils, and the ICAs were patent in 4 patients treated with the covered stents.The ICAs were patent in 2 patients treated with Onyx, the ICA was patent in 1 patent treated with detachable coils and Onyx. One patient with traumatic CCF treated with coils had clinical recurrence, and was cured after re-embolization with coils. The remaining patients were followed-up for 6 to 24 months, and no recurrence of clinical symptoms was found. The followup cerebral angiography of 6 patients was obtained, and no CCF recurrence was observed.Conclusion Endovascular treatment with Guglielmi detachable coils, Onyx, and covered stents is a safe and useful method for closing CCFs.
7.Advances in the study of p53 in response to DNA damage.
Yajie WANG ; Hua SUN ; Gengtao LIU ; Xiaoguang CHEN
Acta Pharmaceutica Sinica 2011;46(12):1413-9
p53 (encoded by TP53) is undoubtedly one of the most extensively studied genes and proteins. It is a highly potent transcription factor which, under normal circumstances, is maintained at low level. Both genotoxic and non-genotoxic stresses can induce p53 stabilized leading to changes in the expression of p53-responsive genes. The biological outcome inducing this pathway can be either growth arrest and apoptosis or senescence to maintain the integrity of the genome or to delete the damaged cells. The biochemical activity of p53 itself and the cellular environment govern the choice between these outcomes in a cell type- and stress-specific manner. So, p53 is a pivotal tumour suppressor and a mainstay of our body's natural anticancer defence. This review could provide some useful information for further study on the mechanisms of tumorigenesis and its progression, and also could contribute to the discovery of antitumor agents.
8.RO-Heparin Inhibits β2-Integrin(Mac-1)-mediated Neutrophils Adhesion
Zhihong CHEN ; Yajie JING ; Xiaoguang WANG ; Xianlu ZENG
Progress in Biochemistry and Biophysics 2008;35(6):695-702
The adhesion of leukocytes to vascular endothelium is crucial for the generation of inflammatory responses. The selectinsand β2-integrin (Mac-1) play a major role in the process. Recently, it was reported that RO-heparin can inhibit selectin-mediated leukocyte adhesion. The effect of RO-heparin on the Mac-1-mediated neutrophils adhesion were further tested. The results showed that RO-heparin could effectively inhibit neutrophils binding to ICAM-1, adhering to COS-7 cells expressing human ICAM-1, and adheringto human umbilical vein endothelial cells (HUVECs) under static and flow conditions. The findings suggest that the effect of RO-heparin on leukocyte adhesion is mainly due to its inhibition on the interaction between selectins or Mac-1 and their ligands and that RO-heparin might be useful in preventing inflammation diseases.
9.RO-Heparin Inhibits ?_2-Integrin(Mac-1)-mediated Neutrophils Adhesion
Zhihong CHEN ; Yajie JING ; Xiaoguang WANG ; Xianlu ZENG
Progress in Biochemistry and Biophysics 2006;0(06):-
The adhesion of leukocytes to vascular endothelium is crucial for the generation of inflammatory responses. The selectins and ?2-integrin (Mac-1) play a major role in the process. Recently, it was reported that RO-heparin can inhibit selectin-mediated leukocyte adhesion. The effect of RO-heparin on the Mac-1-mediated neutrophils adhesion were further tested. The results showed that RO-heparin could effectively inhibit neutrophils binding to ICAM-1, adhering to COS-7 cells expressing human ICAM-1, and adhering to human umbilical vein endothelial cells (HUVECs) under static and flow conditions. The findings suggest that the effect of RO-heparin on leukocyte adhesion is mainly due to its inhibition on the interaction between selectins or Mac-1 and their ligands and that RO-heparin might be useful in preventing inflammation diseases.
10.Automated capillary zone electrophoresis for analysis of human serum protein in clinical application
Yan CHEN ; Zeyu HUANG ; Yajie WANG ; Suping WANG ; Xixiong KANG
Chinese Journal of Laboratory Medicine 2001;0(05):-
Objective The automated capillary zone electrophoresis (CE) is used for human serum protein analysis and compared with the results of agarose gel electrophoresis (AGE) for human serum protein analysis.Discuss its′ practical application in clinical.Methods With the Capillarys ?1-?2+reagent set, proteins in serum were separated at 7 kV for 4 min in 15.5 cm?25.0 ?m fused-silica capillaries (n=8) at 35.5℃ in a pH 10 buffer with online detection 200 nm.Results Capillary zone electrophoresis compared with agarose gel electrophoresis(AGE;Hydrasys-Hyry; Hydragel protein(e)15/30/54 reagent set;Sebia)in precision, relatives, linearity and potential interferences were analyzed.A samples without Para-protein (n=165) were performed relation test. The coefficient of relation between CE and AGE is 0.929 for albumin, 0.924 for for ?1-globulin, 0.841 for ?2-globulin, 0.789 for ?-globulin, 0.926 for ?-globulin. There was no significant difference (P