1.Carotid Atherosclerosis and Cognitive Impairment in Nonstroke Patients
Chen WEI?HONG ; Jin WEI ; Lyu PEI?YUAN ; Liu YANG ; Li RUI ; Hu MING ; Xiao XIANG?JIAN
Chinese Medical Journal 2017;(19):2375-2379
Objective: As a vascular risk factor, carotid atherosclerosis is crucial to cognitive impairment. While carotid intima?media thickness, carotid artery plaque, and carotid stenosis can reflect carotid atherosclerosis in different stages, this review aimed to explore researches on the role of carotid intima?media thickness, carotid artery plaque, and carotid stenosis in the progress of cognitive impairment in nonstroke patients and tried to illustrate the possible mechanisms. Data Sources: We searched the PubMed database for recently published research articles up to July 2017, with the key words of "carotid atherosclerosis," "carotid intima?media thickness," "carotid plaque," "carotid stenosis," "nonstroke," and "cognitive impairment."Study Selection: Articles were obtained and reviewed to analyze the role of carotid atherosclerosis such as carotid intima?thickness, carotid plaque, and carotid stenosis in the progress of cognitive impairment in nonstroke patients and the possible mechanisms. Results: In recent years, most studies proved that by evaluating carotid atherosclerosis with ultrasonography, carotid atherosclerosis accounts for the development of cognitive decline in nonstroke patients. Carotid atherosclerosis not only impairs the subtle general cognitive function but also decreases the specific domains of cognitive function, such as memory, motor function, visual perception, attention, and executive function. But, it is still controversial. The possible mechanisms of cognitive impairment in nonstroke patients with carotid atherosclerosis can be classified as systemic global cerebrovascular function, small?vessel diseases, and the mixed lesions. Conclusions: Carotid atherosclerosis can be used to predict the risk of cognitive impairment. Furthermore, diagnosing and treating carotid atherosclerosis at early stage might help clinicians prevent and treat vascular cognitive impairment in nonstroke patients.
2.Role of Treg in the immune pathogenesis of subacute thyroiditis
Xiao-Ling WANG ; He-Zuo LYU ; Huai-Yong GAN ; Ping XIANG ; Xiao-Feng HANG ; Er-Qin XU ; Xiao-Yan PEI ; Guo-Xi JIN
Basic & Clinical Medicine 2018;38(2):218-223
Objective To explore the role of regulatory T-lymphocytes(Treg) in the immune pathogenesis of suba-cute thyroiditis (SAT). Methods The proportion of Treg in CD4+T cells in peripheral blood of 46 SAT patients and15 controls was detected using flow cytometry. And the concentration of interleukin-10(IL-10), transforming growth factor-beta1(TGF-β1) and prostaglandin E2(PGE2) in serum of 46 SAT patients and 15 controls was measured with ELISA. In addition, the Forkhead box protein 3 (Foxp3) positive cells in thyroid tissue of 29 SAT patients and20 controls was detected by immunohistochemistry. Results The proportion of Treg in peripheral blood of SAT pa-tients was significantly lower than that of controls (P<0.05). And the concentration of TGF-β1 in serum of SAT patients was apparently higher than that of controls(P<0.05). Additionally, the positive rate of Foxp3 in thyroid tissue of SAT patients was markedly higher than that of controls(P<0.05).Conclusions The decrease of Treg may play an important role in the immune pathogenesis of SAT.
3.Effects of blocking co-stimulatory signals on immunotolerance rejection of sensitized recipient after hematopoietic stem cell transplantation.
Qi-Xiang YE ; Wen-Jun WENG ; Lyu-Hong XU ; Jian-Pei FANG
Journal of Experimental Hematology 2014;22(1):131-135
This research was aimed to explore the effects of blocking B7/CD28 and CD40/CD154 co-stimulatory signals on engraftment of hematopoietic stem cell in the sensitized recipient so as to provide the experimental evidence for the treatment of sensitized recipient's immune rejection after clinical allogeneic hematopoietic stem cell transplantation (HSCT). The BALB/c mice were divided into 4 groups: (1)mice sensitized on 7 day before transplant; (2)mice were sensitized on 7 day before transplant, and injected CTLA4Ig+anti-CD154 applied; (3)normal mice injected by corresponding isotype control IgG of CTLA4Ig and anti-CD154; (4)normal blank control mice. Each group had 15 mice. On day 0, mice of each group were irradiated lethally 8 Gy by linear accelerator, and the bone marrow cells of C57BL/6 labeled by fluorescence staining were injected via the tail vein. The fluorescent cell level in peripheral blood and organ tissue at different time points were detected by flow cytometry (FCM) for homing assessment. Survival rates and hematopoietic reconstitution were also monitored and recorded. The results showed that application of CTLA4Ig anti-CD154 could promote implantation of allogeneic HSC in sensitized recipients, induce the immune tolerance, prolong their survival time and accelerate the hematopoietic reconstitution within 28 days, compared with the sensitized group. It is concluded that applying CTLA4Ig and anti-CD154 can enhance the engraftment of HSCT and induce immune tolerance in the sensitized recipient after allogeneic HSCT and accelerate the hematopoietic reconstitution.
Abatacept
;
Animals
;
B7 Antigens
;
antagonists & inhibitors
;
CD28 Antigens
;
antagonists & inhibitors
;
CD40 Antigens
;
antagonists & inhibitors
;
CD40 Ligand
;
antagonists & inhibitors
;
Graft Rejection
;
prevention & control
;
Hematopoietic Stem Cell Transplantation
;
Immune Tolerance
;
Immunoconjugates
;
pharmacology
;
Male
;
Mice
;
Mice, Inbred BALB C
;
Mice, Inbred C57BL
;
Transplantation, Homologous
4.Prognostic factors for glioblastoma:a retrospective single-center analysis of 176 adults
Guohao HUANG ; Yongyong CAO ; Lin YANG ; Zuoxin ZHANG ; Yan XIANG ; Yuchun PEI ; Yao LI ; Wei CHEN ; Shengqing LYU
Journal of Army Medical University 2024;46(17):2002-2008
Objective To explore the clinical features,treatment and prognosis of glioblastomas(GBM)in adults.Methods A retrospective cohort study was performed on 176 adult GBM patients admitted to our department from January 2015 to December 2021.Chi-square test was used to investigate the clinical differences between isocitrate dehydrogenase(IDH)mutant and wild-type GBM.Kaplan-Meier and Log-Rank tests were employed to plot survival curve and compute the survival analysis.Multivariate Cox regression model was applied to identify the independent prognostic factors.Results IDH wild-type GBM account for 89.2%and had significantly differences from the IDH-mutant GBM in terms of age of onset,Karnofsky(KPS)score at admission,symptoms of neurological deficit,and methylation status of O6-methylguanine-DNA-methyltransferase(MGMT)promoter(P<0.05).For the IDH wild-type GBM patients receiving conventional therapy,univariate Cox hazard analysis showed gross total resection,methylation of MGMT promoter,initiation of radiation within the 5th to 6th week after surgery,and adjuvant temozolomide(TMZ)chemotherapy ≥6 cycles were favorable prognostic factors for overall survival(OS);GBMs in the left hemisphere,involvement of single lobe,methylation of MGMT promoter,and initiation of radiation within the 5th to 6th week after surgery were favorable prognostic factors for progression free survival(PFS)(all P<0.05).Moreover,multivariate Cox hazard regression analysis indicated that methylation of MGMT promoter,and initiation of radiation within the 5th to 6th week after surgery,and adjuvant TMZ chemotherapy ≥6 cycles were independent protective factors for OS,and GBMs in the left hemisphere,involvement of single lobe and methylation of MGMT promoter were independent protective factors for PFS in the GBM patients(all P<0.05).Conclusion The clinical and prognostic features are totally different between IDH mutant and wild-type GBM,and molecular detections are needed for the further pathological classification.Methylation of MGMT promoter is a primary marker of favorite prognosis for IDH wild-type GBM,and slightly delay in radiotherapy(the 5th to 6th week after surgery)can effectively improve the survival prognosis of IDH wild-type GBM.
5.Carotid Atherosclerosis and Cognitive Impairment in Nonstroke Patients.
Wei-Hong CHEN ; Wei JIN ; Pei-Yuan LYU ; Yang LIU ; Rui LI ; Ming HU ; Xiang-Jian XIAO
Chinese Medical Journal 2017;130(19):2375-2379
OBJECTIVEAs a vascular risk factor, carotid atherosclerosis is crucial to cognitive impairment. While carotid intima-media thickness, carotid artery plaque, and carotid stenosis can reflect carotid atherosclerosis in different stages, this review aimed to explore researches on the role of carotid intima-media thickness, carotid artery plaque, and carotid stenosis in the progress of cognitive impairment in nonstroke patients and tried to illustrate the possible mechanisms.
DATA SOURCESWe searched the PubMed database for recently published research articles up to July 2017, with the key words of "carotid atherosclerosis," "carotid intima-media thickness," "carotid plaque," "carotid stenosis," "nonstroke," and "cognitive impairment."
STUDY SELECTIONArticles were obtained and reviewed to analyze the role of carotid atherosclerosis such as carotid intima-thickness, carotid plaque, and carotid stenosis in the progress of cognitive impairment in nonstroke patients and the possible mechanisms.
RESULTSIn recent years, most studies proved that by evaluating carotid atherosclerosis with ultrasonography, carotid atherosclerosis accounts for the development of cognitive decline in nonstroke patients. Carotid atherosclerosis not only impairs the subtle general cognitive function but also decreases the specific domains of cognitive function, such as memory, motor function, visual perception, attention, and executive function. But, it is still controversial. The possible mechanisms of cognitive impairment in nonstroke patients with carotid atherosclerosis can be classified as systemic global cerebrovascular function, small-vessel diseases, and the mixed lesions.
CONCLUSIONSCarotid atherosclerosis can be used to predict the risk of cognitive impairment. Furthermore, diagnosing and treating carotid atherosclerosis at early stage might help clinicians prevent and treat vascular cognitive impairment in nonstroke patients.
6.Advances in Research on Pharmacological Effect of Astragaloside Ⅳ on Cardiovascular and Cerebrovascular Diseases
Xiang-lin KONG ; Qin LYU ; Yun-lun LI ; Dong-fang KAN ; Ke PEI ; Qing-feng BU ; Ya-qi ZHANG ; Ji-biao WU
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(2):218-223
Astragalus membranaceus has the effect of tonifying Qi and solid surface, diuretic support poison, discharging pus and astringent sores to produce muscle. It is not only used for syndromes such as deficiency of lung and temper, deficiency of spleen and diarrhea, but also for stroke, chest obstruction and other diseases. Due to the complex chemical composition and diverse pharmacological effect of Astragalus membranaceus, and the main role in invigorating qi and activating blood circulation has not been clarified. Astragaloside Ⅳ is one of its main active ingredients. In recent years, more and more studies on Astragaloside Ⅳ have been conducted at home and abroad. It has been reported that it has the medicinal value of enhancing immune function, strengthening heart and lowerin blood glucose, diuresis, anti-aging and anti-fatigue, et al, and has extensive pharmacological activity. Among them, the role of cardiovascular and cerebrovascular diseases in particular has attracted increasing attention. Cardiovascular and cerebrovascular diseases are ischemic or hemorrhagic diseases occurring in the heart, brain and systemic tissues due to blood viscosity, atherosclerosis, hypertension, hyperlipidemia, etc., including cardiovascular and cerebrovascular diseases. Such diseases are a serious threat to mankind and are the leading cause of death worldwide. At present, western medicine is the main treatment, with many adverse reactions and poor long-term prognosis. TCM believes that the imbalance of qi and blood is the basic pathogenesis of this kind of disease. Qi deficiency and blood stasis are more common.At present, Astragaloside Ⅳ in the treatment of cardiovascular and cerebrovascular diseases in a number of studies, and achieved some results, but this review in recent years, Astragaloside Ⅳ in the treatment of cardiovascular and cerebrovascular diseases play the pharmacological activity, in order to explore whether Astragaloside Ⅳ is the main role of astragalus qi to find a theoretical basis for material basis, but also for the innovation of traditional Chinese medicine drug research and development of theoretical basis and practical guidance.
7. Effects of HMGB1 on phenotypes, phagocytosis and ERK/JNK/P38 MAPK signaling pathway in dendritic cells
Ying-Ying CHEN ; Zhi-Xiang MOU ; Xiao-Long HU ; Yi-Yan ZHANG ; Jiao-Qing WENG ; Tian-Jun GUAN ; Ying-Ying CHEN ; Lan CHEN ; Tian-Jun GUAN ; Lan CHEN ; Pei-Yu LYU
Chinese Pharmacological Bulletin 2024;40(2):248-255
Aim To explore the impacts of high mobility group box 1 (HMGB1) on the phenotypes, endocy-tosis and extracellular signal-regulated kinase (ERK)/ Jun N-terminal protein kinase (JNK)/P38 mitogen-ac-tivated protein kinase (MAPK) signaling pathway in indoxyl sulfate (IS) -induced dendritic cells (DCs). Methods After treatment with 30, 300 and 600 (xmol · L
8.Prospective association between physical activity and mortality in patients with chronic kidney disease.
Ke Xiang SHI ; Xue WANG ; Can Qing YU ; Jun LYU ; Yu GUO ; Dian Jian Yi SUN ; Pei PEI ; Qing Mei XIA ; Jun Shi CHEN ; Zheng Ming CHEN ; Li Ming LI
Chinese Journal of Epidemiology 2023;44(5):720-726
Objective: To investigate the prospective association of physical activity with all-cause, cardiovascular disease (CVD), and chronic kidney disease (CKD) mortality in CKD patients in China. Methods: Cox proportional hazard models were used to evaluate the association of total, domain-specific, and intensity-specific physical activity with the risk of all-cause, CVD, and CKD mortality based on data from the baseline survey of China Kadoorie Biobank. Results: During a median follow-up of 11.99 (11.13, 13.03) years, there were 698 deaths in 6 676 CKD patients. Compared with the bottom tertile of total physical activity, participants in the top tertile had a lower risk of all-cause, CVD, and CKD mortality, with hazard ratios (HRs) (95%CIs) of 0.61 (0.47-0.80), 0.40 (0.25-0.65), and 0.25 (0.07-0.85), respectively. Occupational, commuting, and household physical activity were negatively associated with the risk of all-cause and CVD mortality to varying degrees. Participants in the top tertile of occupational physical activity had a lower risk of all-cause (HR=0.56, 95%CI: 0.38-0.82) and CVD (HR=0.39, 95%CI: 0.20-0.74) mortality, those in the top tertile of commuting physical activity had a lower risk of CVD mortality (HR=0.43, 95%CI: 0.22-0.84), and those in the top tertile of household physical activity had a lower risk of all-cause (HR=0.61, 95%CI: 0.45-0.82), CVD (HR=0.44, 95%CI: 0.26-0.76) and CKD (HR=0.03, 95%CI: 0.01-0.17) mortality, compared with the bottom tertile of corresponding physical activity. No association of leisure-time physical activity with mortality was observed. Both low and moderate-vigorous intensity physical activity were negatively associated with the risk of all-cause, CVD and CKD mortality. The corresponding HRs (95%CIs) were 0.64 (0.50-0.82), 0.42 (0.26-0.66) and 0.29 (0.10-0.83) in the top tertile of low intensity physical activity, and the corresponding HRs (95%CIs) were 0.63 (0.48-0.82), 0.39 (0.24-0.64) and 0.23 (0.07-0.73) in the top tertile of moderate-vigorous intensity physical activity. Conclusion: Physical activity can reduce the risk of all-cause, CVD, and CKD mortality in CKD patients.
Humans
;
Exercise
;
Motor Activity
;
Cardiovascular Diseases
;
China
;
Renal Insufficiency, Chronic
9.Prevalence of chronic kidney disease and its association with lifestyle factors in adults from 10 regions of China.
Xue WANG ; Ke Xiang SHI ; Can Qing YU ; Jun LYU ; Yu GUO ; Pei PEI ; Qing Mei XIA ; Huai Dong DU ; Jun Shi CHEN ; Zheng Ming CHEN ; Li Ming LI
Chinese Journal of Epidemiology 2023;44(3):386-392
Objective: To investigate the distribution of chronic kidney disease (CKD) in participants from the China Kadoorie Biobank (CKB) study and evaluate the association between lifestyle risk factors and CKD. Methods: Based on the baseline survey data and follow-up data (as of December 31, 2018) of the CKB study, the differences in CKD cases' area and population distributions were described. Cox proportional hazards regression model was used to estimate the association between lifestyle risk factors and the risk of CKD. Results: A total of 505 147 participants, 4 920 cases of CKD were recorded in 11.26 year follow up with a incidence rate of 83.43/100 000 person-years. Glomerulonephropathy was the most common type. The incidence of CKD was higher in the urban area, men, and the elderly aged 60 years and above (87.83/100 000 person-years, 86.37/100 000 person-years, and 132.06/100 000 person-years). Current male smokers had an increased risk for CKD compared with non-smokers or occasional smokers (HR=1.18, 95%CI: 1.05-1.31). The non-obese population was used as a control group, both general obesity determined by BMI (HR=1.19, 95%CI: 1.10-1.29) and central obesity determined by waist circumference (HR=1.27, 95%CI: 1.19-1.35) were associated with higher risk for CKD. Conclusion: The risks for CKD varied with area and population in the CKB cohort study, and the risk was influenced by multiple lifestyle factors.
Aged
;
Adult
;
Humans
;
Male
;
Cohort Studies
;
Prevalence
;
Prospective Studies
;
Risk Factors
;
Obesity/epidemiology*
;
Renal Insufficiency, Chronic/epidemiology*
;
China/epidemiology*
;
Life Style
;
Body Mass Index
10.Analysis of Health Service Utilization and its Influencing Factors among Patients with Pneumoconiosis in China.
Huan Qiang WANG ; Jun Lin JIA ; Zhao Qiang JIANG ; Qi JIN ; Dong Xia LI ; Rui Jie LING ; Ying LI ; Ping CUI ; Gang CHEN ; Hong Yu ZHAO ; Yan LI ; Ke WEN ; Xiang Pei LYU ; Jian Lin LOU ; Tao LI
Biomedical and Environmental Sciences 2021;34(1):83-88
Pneumoconiosis, an interstitial lung disease that occurs from breathing in certain kinds of damaging dust particles, is a major occupational disease in China. Patients diagnosed with occupational pneumoconiosis can avail of free medical treatment, whereas patients without a diagnosis of occupational diseases cannot not claim free medical treatment in most provinces from the government before 2019. This study aimed to analyze the priority of medical facility selection and its influencing factors among patients with pneumoconiosis. A total of 1,037 patients with pneumoconiosis from nine provinces in China were investigated. The health service institutions most frequently selected by the patients were county-level hospitals (37.5%). The main reason for the choice was these hospitals' close distance to the patients' homes (47.3%). The factors for the choice of health care institutions were living in the eastern region (
Adult
;
Aged
;
China
;
Female
;
Hospitals
;
Humans
;
Insurance Coverage
;
Male
;
Middle Aged
;
Patient Acceptance of Health Care/statistics & numerical data*
;
Pneumoconiosis/therapy*
;
Rural Population
;
Silicosis
;
Smoking