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960 results on '"Tang, Bao"'

216. 850 nm单模面发射分布反馈式激光器

Author

李南果 Li Nanguo, 刘灿 Liu Can, 张鹏斐 Zhang Pengfei, 向敏文 Xiang Minwen, 汤宝 Tang Bao, 颜伟年 Yan Weinian, 阚强 Kan Qiang, 陆巧银 Lu Qiaoyin, and 国伟华 Guo Weihua

Subjects
Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2022
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219. Global well-posedness and nonlinear stability of a chemotaxis system modelling multiple sclerosis.

Author

Desvillettes, Laurent, Giunta, Valeria, Morgan, Jeff, and Tang, Bao Quoc

Subjects
STABILITY of nonlinear systems, REACTION-diffusion equations, CHEMOTAXIS, MULTIPLE sclerosis
Abstract

We consider a system of reaction–diffusion equations including chemotaxis terms and coming out of the modelling of multiple sclerosis. The global existence of strong solutions to this system in any dimension is proved, and it is also shown that the solution is bounded uniformly in time. Finally, a nonlinear stability result is obtained when the chemotaxis term is not too big. We also perform numerical simulations to show the appearance of Turing patterns when the chemotaxis term is large. [ABSTRACT FROM AUTHOR]

Published
2022
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220. Aging‐induced atrial fibrosis in If current change and its effect on atrial fibrillation in dogs.

Author

Wang, Fei‐Fei, Han, Ya‐Fan, Liang, Xiao‐Yan, Zhang, Ge‐Ge, Lu, Yan‐Mei, Li, Yao‐Dong, and Tang, Bao‐Peng

Abstract

Background: Atrial fibrillation (AF) is a very common type of cardiac arrhythmia that threatens public health. Aging is an independent AF risk factor. However, the mechanism of age‐related AF remains unclear. Methods: A total of 36 Beagle dogs were selected and divided into three groups (12 in each group): two groups were 9‐year‐old aged dogs, and one group was 4‐year‐old adult dogs. Electrophysiological testing was employed to determine if modeling is successful. Patch‐clamp technique was employed to measure the If current. The expression of protein and mRNA related to If current were also tested. Collagen deposition was observed with the use of Masson staining. Results: Aging resulted in a higher collagen deposition percentage in the left atrium. The hyperpolarization‐activated cyclic nucleotide‐gated (HCN)2 and HCN4 expressions were increased in the atria and pulmonary veins but decreased in the sinus node of the aged group. Moreover, in the aged group, the left atrium mRNA expressions of Kcnd2 (Potassium voltage‐gated channel subfamily D member 2), Kcnh2, Kcnq1, Kcnj2, Kcnj11, and CACNA1H were significantly downregulated. The aged AF group also demonstrated sustained AF and significant changes in electrophysiological characteristics. The If current demonstrated an increased amplitude and was easier to activate in the aged AF group than in younger group. Finally, AF occurrence exacerbated aging‐induced cardiac fibrosis, thereby aggravating the above‐listed symptoms. Conclusion: With age, the increase in atrial fibrosis affected the expression of the ion channels, thereby modulating the If current. Moreover, AF also further exacerbated the degree of atrial fibrosis. [ABSTRACT FROM AUTHOR]

Published
2022
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231. A prospective comparison of four methods for preventing pacemaker pocket infections

Author

Li, Yao‐Dong, primary, MaiMaiTiABuDuLa, MaiMaiTiMin, additional, Cao, Gui‐Qiu, additional, MaiMaiTiAiLi, MaiMaiTiMin, additional, Zhou, Xian‐Hui, additional, Lu, Yan‐Mei, additional, Zhang, Jiang‐Hua, additional, Xing, Qiang, additional, Wu, Chuang‐Ju, additional, Feng, Min, additional, Zhang, Ge‐Ge, additional, and Tang, Bao‐Peng, additional

Published
2020
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240. Hepatocyte TMEM16A Deletion Retards NAFLD Progression by Ameliorating Hepatic Glucose Metabolic Disorder

Author

Guo, Jia‐Wei, primary, Liu, Xiu, additional, Zhang, Ting‐Ting, additional, Lin, Xiao‐Chun, additional, Hong, Yu, additional, Yu, Jie, additional, Wu, Qin‐Yan, additional, Zhang, Fei‐Ran, additional, Wu, Qian‐Qian, additional, Shang, Jin‐Yan, additional, Lv, Xiao‐Fei, additional, Ou, Jing‐Song, additional, Zhou, Jia‐Guo, additional, Pang, Rui‐Ping, additional, Tang, Bao‐Dong, additional, and Liang, Si‐Jia, additional

Published
2020
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243. Protective Effects of Cytomegalovirus DNA Copies ≧1000/mL for AML Patients in Complete Remission After Single Cord Blood Transplantation

Author

Dong,Man-Yu, Tang,Bao-Lin, Zhu,Xiao-Yu, Cheng,Si-Qi, Fang,Xin-Chen, Tong,Juan, Wan,Xiang, Zheng,Chang-Cheng, Liu,Hui-Lan, and Sun,Zi-Min

Subjects
Infection and Drug Resistance
Abstract

Man-Yu Dong, Bao-Lin Tang, Xiao-Yu Zhu, Si-Qi Cheng, Xin-Chen Fang, Juan Tong, Xiang Wan, Chang-Cheng Zheng, Hui-Lan Liu, Zi-Min Sun Department of Hematology, The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui, People’s Republic of ChinaCorrespondence: Zi-Min SunDepartment of Hematology, The First Affiliated Hospital of University of Science and Technology of China, No. 17, Lujiang Road, Hefei, Anhui 230001, People’s Republic of ChinaTel +86 551 6228 2992Fax +86 551 6228 2121Email zmsun_vip@163.comIntroduction: Current consensus recommends a protective effect of cytomegalovirus (CMV) infection on relapse after peripheral blood or bone marrow hematopoietic stem cell transplantation. However, in cord blood transplantation (CBT), studies of CMV infection, especially CMV viral load, on relapse are limited.Patients and Methods: Wct e retrospectively analyzed the effect of CMV infection on 3-year outcomes in 249 AML patients according to CMV DNA load (DNA copies < 1000/mL and DNA copies ≧1000/mL) within 100 days after CBT. Furthermore, eight-colour flow cytometry was used to detect peripheral blood lymphocyte subsets in 38 patients who received CBT in the last year, and 10 healthy volunteers were included as controls.Results: The results showed that CMV DNA load did not affect the cumulative incidence of relapse in the whole study population. However, in patients with complete remission status before transplantation, the high CMV DNA load group showed a significantly reduction of relapse than the low CMV DNA load group (3.9% vs 14.6%, p=0.012, respectively), which was confirmed by multivariate analysis (HR 0.23; 95% CI, 0.07– 0.73, p = 0.012). Surprisingly, high or low CMV DNA load did not significantly affect non-relapse mortality or overall survival (18.0% vs 17.0%, p=0.777 and 79.0% vs 74.6%, p=0.781, respectively). Besides, the absolute number of CD8+ T cells were increased in the high CMV DNA load group compared with the low DNA load group 1 month after CBT (0.20× 10 9/L vs 0.10× 10 9/L, p=0.021, respectively).Conclusion: DNA copies ≧1000/mL for AML patients in complete remission was associated with a lower incidence of relapse after CBT, which might partly result from the expansion of CMV-related CD8+ T cells.Keywords: cord blood transplantation, cytomegalovirus, DNA load, relapse, acute myeloid leukemia, complete remission

Published
2020

246. Effects of Pacemaker Implantation on Sudden Cardiac Death Rate and Quality of Life in Atrial Fibrillation Patients With Ventricular Pauses.

Author

Li, Yao-Dong, Hong, Yi-Fan, Ma, Jian-Hua, Cao, Gui-Qiu, Zhou, Xian-Hui, Zhang, Jiang-Hua, Xing, Qiang, and Tang, Bao-Peng

Subjects
SURVIVAL, ATRIAL fibrillation, SURGERY, PATIENTS, VENTRICULAR dysfunction, TREATMENT effectiveness, CARDIAC arrest, QUALITY of life, CARDIAC pacemakers
Abstract

Ventricular arrest is a rare arrhythmic disease in the clinic; 35% to 55% of cases are associated with atrial fibrillation (AF). It is well known that ventricular arrest for ≥3 seconds can lead to brain symptoms such as dizziness and even syncope, but it is not clear whether ventricular pauses (≥3 seconds) with AF will lead to sudden cardiac death. If the implantation of a pacemaker can improve the quality of life of patients with permanent AF with ventricular arrest and whether it has a long-term protective effect on sudden cardiac death. To this end, we conducted a prospective follow-up observation study, which was conducted through telephone interviews and clinical hospital observation to obtain information on the quality of life, survival rate, and other details. The results show that for patients with permanent AF with ventricular arrest, pacemaker implantation cannot reduce sudden cardiac death, cardiovascular events, and stroke nor can it improve the cumulative survival rate. Fortunately, the implantation of pacemakers can improve the quality of life of patients. [ABSTRACT FROM AUTHOR]

Published
2022
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