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Mei X, Liu YH, Han YQ, Zheng CY. Risk factors, preventive interventions, overlapping symptoms, and clinical measures of delirium in elderly patients. World J Psychiatry 2023; 13:973-984. [PMID: 38186721 PMCID: PMC10768493 DOI: 10.5498/wjp.v13.i12.973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/14/2023] [Accepted: 10/30/2023] [Indexed: 12/19/2023] Open
Abstract
Delirium is an acute reversible neuropsychiatric syndrome caused by multiple factors. It is associated with many adverse clinical outcomes including cognitive impairment, functional decline, prolonged hospitalization, and increased nursing service. The prevalence of delirium was high in department of cardiology, geriatric, and intensive care unit of hospital. With the increase in the aged population, further increases in delirium seem likely. However, it remains poorly recognized in the clinical practice. This article comprehensively discusses the latest research perspectives on the epidemiological data, risk factors, preventive interventions, overlapping symptoms, and clinical measures of delirium, including specific measures to manage delirium in clinical real-world situations. This article helps readers improve their knowledge and understanding of delirium and helps clinicians quickly identify and implement timely therapeutic measures to address various delirium subtypes that occur in the clinical settings to ensure patients are treated as aggressively as possible.
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Affiliation(s)
- Xi Mei
- Department of Psychiatry, Ningo Kangning Hospital, Ningbo 315201, Zhejiang Province, China
| | - Yue-Hong Liu
- Department of Psychiatry, Ningo Kangning Hospital, Ningbo 315201, Zhejiang Province, China
| | - Ya-Qing Han
- Department of Psychiatry, Ningo Kangning Hospital, Ningbo 315201, Zhejiang Province, China
| | - Cheng-Ying Zheng
- Department of Psychiatry, Ningo Kangning Hospital, Ningbo 315201, Zhejiang Province, China
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Li XX, Cheng RJ, Wang Q, Liu DJ, Lv SY, Huang ZM, Zhang ST, Li XM, Chen ZJ, Wang Q, Liu ZJ, Cao LH, Zheng CY, He XT. Anomalous staged hot-electron acceleration by two-plasmon decay instability in magnetized plasmas. Phys Rev E 2023; 108:L053201. [PMID: 38115515 DOI: 10.1103/physreve.108.l053201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/12/2023] [Indexed: 12/21/2023]
Abstract
We present a staged hot-electron acceleration mechanism of the two-plasmon decay (TPD) instability in the transverse magnetic field under the parameters relevant to inertial confinement fusion experiments. After being accelerated by the forward electron plasma wave (FEPW) of TPD, the hot-electrons can be anomalously accelerated again by the backward electron plasma wave (BEPW) of TPD and then obtain higher energy. Moreover, the surfatron acceleration mechanism of TPD in the magnetic field is also confirmed, the electrons trapped by the TPD daughter EPWs are accelerated in the direction along the wave front. Interestingly, the velocity of electrons accelerated by surfing from the FEPW is quite easily close to the BEPW phase velocity, which markedly enhances the efficiency of the staged acceleration. The coexistence of these two acceleration mechanisms leads to a significant increase of energetic electrons generated by TPD in the magnetic field. Meanwhile the EPWs are dissipated, TPD instability is effectively suppressed, and the laser transmission increases.
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Affiliation(s)
- X X Li
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - R J Cheng
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - Qing Wang
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - D J Liu
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - S Y Lv
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - Z M Huang
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - S T Zhang
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - X M Li
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - Z J Chen
- HEDPS, Center for Applied Physics and Technology, and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - Qiang Wang
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - Z J Liu
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
- HEDPS, Center for Applied Physics and Technology, and College of Engineering, Peking University, Beijing 100871, China
| | - L H Cao
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
- HEDPS, Center for Applied Physics and Technology, and College of Engineering, Peking University, Beijing 100871, China
| | - C Y Zheng
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
- HEDPS, Center for Applied Physics and Technology, and College of Engineering, Peking University, Beijing 100871, China
| | - X T He
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
- HEDPS, Center for Applied Physics and Technology, and College of Engineering, Peking University, Beijing 100871, China
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Ning HY, Cai HJ, Ma TT, Fan CE, Wu DD, Gao FY, Kong F, Zhang FJ, Wang R, Guo HH, Ma RL, Zheng CY, Hao B, Wang HT, Zhang JJ, Zhang L, Wang XY. [Investigation and analysis of airborne allergenic pollen in 4 districts and 5 counties of Hohhot City]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1364-1372. [PMID: 37743296 DOI: 10.3760/cma.j.cn112150-20230116-00034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Objective: To investigate the species, concentration and seasonal trends of main airborne allergenic pollen in 4 districts and 5 counties of Hohhot City. Methods: The Department of allergy, Beijing Shijitan Hospital Affiliated to Capital Medical University conducted a cross-sectional study about monitoring the airborne allergenic pollen from August 1, 2021 to July 31, 2022 by the gravitational method in 4 districts and 5 counties of Hohhot City, which include Yuquan District, Xincheng District, Huimin District, Saihan District, Tuoketuo County, Helingeer County, Tumotezuoqi County, Wuchuan County and Qingshuihe County. Daily pollens were counted and identified by optical microscopy, and the data were analyzed. Results: The airborne allergenic pollen was collected every month all year round in 4 districts and 5 counties of Hohhot city. Through the whole year of the total quantity of pollens ranged from 24 850 to 50 154 grains per 1 000 mm2 and two peaks of pollen concentration in air were observed,which happened in spring (from March to May) and in summer and autumn (from July to September). In spring, the main pollens were tree pollens, which principally distributed in Populus pollen (18.29%), Ulmus pollen (8.36%), Pinus pollen (6.20%), Cupressaceae pollen (5.23%), Betulaceae pollen (2.73%), Salix pollen (1.80%) and Quercus pollen (1.16%). In summer and autumn, the main pollens were weed pollens, which mainly included Artemisia pollen (42.73%), Chenopodiaceae pollen or Amaranthaceae pollen (7.46%), Poaceae pollen (2.26%), Humulus pollen or Cannabis pollen (0.60%). Conclusion: There were two peaks of main airborne allergenic pollen in 4 districts and 5 counties of Hohhot City. In the spring peak of pollen, the main airborne pollens were tree pollens. In the summer and autumn peak of pollen, the main airborne pollens were weed pollens. The Artemisia pollen was the most major airborne pollen in this area.
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Affiliation(s)
- H Y Ning
- Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China Allergy Center, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - H J Cai
- Allergy Center, Hohhot First Hospital, Hohhot 010030, China
| | - T T Ma
- Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China Allergy Center, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - C E Fan
- Allergy Center, Hohhot First Hospital, Hohhot 010030, China
| | - D D Wu
- Department of Primary Health Care, Hohhot Health Committee, Hohhot 010010, China
| | - F Y Gao
- Department of Allergy, Qingshuihe County Hospital, Hohhot 011600, China
| | - F Kong
- Department of Allergy, Hohhot Huimin District Hospital, Hohhot 010030, China
| | - F J Zhang
- Department of Clinical Laboratory, Ying Xin Road Office East Community Health Service Centre, Hohhot 010000, China
| | - R Wang
- Department of Clinical Laboratory, Daxuexi Road Community Health Service Centre, Hohhot 010018, China
| | - H H Guo
- Department of Allergy and Department of Clinical Laboratory, Tumotezuoqi People's Hospital, Hohhot 010100, China
| | - R L Ma
- Department of Allergy, Tuoketuo County Hospital, Hohhot 010200, China
| | - C Y Zheng
- Department of Allergy, Helingeer County Hospital, Hohhot 011500, China
| | - B Hao
- Department of Allergy, Wuchuan County Hospital, Hohhot 011700, China
| | - H T Wang
- Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China Allergy Center, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - J J Zhang
- Allergy Center, Hohhot First Hospital, Hohhot 010030, China
| | - L Zhang
- Department of Otorhinolaryngology Head and Neck Surgery and Department of Allergy, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China Beijing Key Laboratory of Allergic Diseases, Beijing Institute of Otorhinolaryngology, Beijing 100005, China
| | - X Y Wang
- Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China Allergy Center, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
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Liu DJ, Wang Q, Li XM, Zhang ST, Cheng RJ, Li XX, Lv SY, Huang ZM, Wang Q, Liu ZJ, Cao LH, Zheng CY. Kinetic model and Vlasov simulation verification of two-ion decay instability. Phys Rev E 2023; 108:025206. [PMID: 37723741 DOI: 10.1103/physreve.108.025206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 07/27/2023] [Indexed: 09/20/2023]
Abstract
A kinetic theory is developed to describe the longitudinal decay of two-ion decay (TID): The pump ion-acoustic wave (IAW) decays into two daughter IAWs with a longer wavelength. The instability growth rate and threshold are given by the theory. Both the simulations of full kinetic Vlasov and hybrid Vlasov (kinetic ions and Boltzmann electrons) are employed to verify the theory and have a high quantitative agreement with the theory for 8≤ZT_{e}/T_{i}≤15, where Z is the ion charge number and T_{i}(T_{e}) is the ion (electron) temperature. The kinetic model developed here solves a long-standing problem that the simple fluid theory underestimates growth rate by a factor of 2∼3. Also, a reasonable explanation is given to the typical characteristics of TID that the dependence curves of subharmonic growth rate γ and wave number k.
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Affiliation(s)
- D J Liu
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - Qing Wang
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - X M Li
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - S T Zhang
- HEDPS, Center for Applied Physics and Technology, and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - R J Cheng
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - X X Li
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - S Y Lv
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - Z M Huang
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - Qiang Wang
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
| | - Z J Liu
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
- HEDPS, Center for Applied Physics and Technology, and College of Engineering, Peking University, Beijing 100871, China
| | - L H Cao
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
- HEDPS, Center for Applied Physics and Technology, and College of Engineering, Peking University, Beijing 100871, China
| | - C Y Zheng
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
- HEDPS, Center for Applied Physics and Technology, and College of Engineering, Peking University, Beijing 100871, China
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Gu RQ, Qiu JY, Zheng CY, Wu JM, Nie ZJ, Zhang LF, Chen Z, Wang X, Hu Z, Song YX, Zhang DD, Shan WP, Cao X, Tian YX, Shao L, Tian Y, Pan XB, Wang ZW. [Long-term mortality risk of valvular heart disease adults over 35 years old in Chinese communities]. Zhonghua Yi Xue Za Zhi 2023; 103:1818-1823. [PMID: 37357186 DOI: 10.3760/cma.j.cn112137-20221118-02430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
Objective: To investigate the risk and influencing factors of long-term mortality of valvular heart disease (VHD) adults aged 35 years and over in Chinese communities. Methods: A cohort study was carried out. The data of the subjects who underwent echocardiography were collected from the Chinese Hypertension Survey between 2012 and 2015 and survival outcomes were followed up between 2018 and 2019. Kaplan-Meier survival curves were plotted and compared using log-rank test. Cox proportional hazards models were used to analyze the influence of VHD on mortality. Results: During an average follow-up time of (4.6±0.9) years, a total of 23 237 participants (10 881 males and 12 356 females) were pooled into the final analysis from 5 eastern, 5 central, and 4 western provinces, cities and autonomous regions in China, with a mean age of (56.9±13.2) years. Among the included participants, 1 004 had VHD (467 males and 537 females), with a mean age was of (68.1±12.6) years. In the Kaplan-Meier analysis, participants with VHD had a significantly increased risk of all-cause mortality (log-rank χ2=351.82, P<0.001) and cardiovascular mortality (log-rank χ2=284.14, P<0.001) compared with those without VHD. Multivariate Cox regression analysis showed that compared with those without VHD, the participants with rheumatic VHD had a 45% increased risk of all-cause mortality (HR=1.45, 95%CI: 1.12-1.89) and degenerative VHD increased the risk of cardiovascular mortality by 69% (HR=1.69, 95%CI: 1.19-2.38). The risk factors of cardiovascular mortality for VHD were age 55 years and over (55-<75 years: HR=4.93, 95%CI: 1.17-20.85;≥75 years: HR=11.92, 95%CI: 2.85-49.80) and diabetes mellitus (HR=1.71, 95%CI: 1.00-2.93). Conclusions: VHD is a risk factor of all-cause mortality and cardiovascular mortality among adults aged 35 years and over. Age 55 years and over and diabetes mellitus are adverse prognostic factors for patients with VHD.
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Affiliation(s)
- R Q Gu
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - J Y Qiu
- School of Public Health, Medical College of Soochow University, Suzhou 215006, China
| | - C Y Zheng
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - J M Wu
- School of Management, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Z J Nie
- School of Public Health, Medical College of Soochow University, Suzhou 215006, China
| | - L F Zhang
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - Z Chen
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - X Wang
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - Z Hu
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - Y X Song
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - D D Zhang
- School of Public Health, Medical College of Soochow University, Suzhou 215006, China
| | - W P Shan
- School of Public Health, Medical College of Soochow University, Suzhou 215006, China
| | - X Cao
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - Y X Tian
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - L Shao
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - Y Tian
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - X B Pan
- Department of Structural Heart Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences, Beijing 100037, China
| | - Z W Wang
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
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Mei X, Zou CJ, Hu J, Liu XL, Zheng CY, Zhou DS. Functional near-infrared spectroscopy in elderly patients with four types of dementia. World J Psychiatry 2023; 13:203-214. [PMID: 37303929 PMCID: PMC10251357 DOI: 10.5498/wjp.v13.i5.203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 03/02/2023] [Accepted: 04/04/2023] [Indexed: 05/19/2023] Open
Abstract
BACKGROUND Functional near-infrared spectroscopy (fNIRS) is commonly used to study human brain function by measuring the hemodynamic signals originating from cortical activation and provides a new noninvasive detection method for identifying dementia.
AIM To investigate the fNIRS imaging technique and its clinical application in differential diagnosis of subtype dementias including frontotemporal lobe dementia, Lewy body dementia, Parkinson’s disease dementia (PDD) and Alzheimer’s disease (AD).
METHODS Four patients with different types of dementia were examined with fNIRS during two tasks and a resting state. We adopted the verbal fluency task, working memory task and resting state task. Each patient was compared on the same task. We conducted and analyzed the fNIRS data using a general linear model and Pearson’s correlation analysis.
RESULTS Compared with other types of dementias, fNIRS showed the left frontotemporal and prefrontal lobes to be poorly activated during the verbal fluency task in frontotemporal dementia. In Lewy body dementia, severe asymmetry of prefrontal lobes appeared during both verbal fluency and working memory tasks, and the patient had low functional connectivity during a resting state. In PDD, the patient’s prefrontal cortex showed lower excitability than the temporal lobe during the verbal fluency task, while the prefrontal cortex showed higher excitability during the working memory task. The patient with AD showed poor prefrontal and temporal activation during the working memory task, and more activation of frontopolar instead of the dorsolateral prefrontal cortex.
CONCLUSION Different hemodynamic characteristics of four types of dementia (as seen by fNIRS imaging) provides evidence that fNIRS can serve as a potential tool for the diagnosis between dementia subtypes.
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Affiliation(s)
- Xi Mei
- Key Lab, Ningbo Kangning Hospital, Ningbo 315201, Zhejiang Province, China
| | - Chen-Jun Zou
- Department of Geriatric, Ningbo Kangning Hospital, Ningbo 315201, Zhejiang Province, China
| | - Jun Hu
- Department of Geriatric, Ningbo Kangning Hospital, Ningbo 315201, Zhejiang Province, China
| | - Xiao-Li Liu
- Key Lab, Ningbo Kangning Hospital, Ningbo 315201, Zhejiang Province, China
| | - Cheng-Ying Zheng
- Department of Geriatric, Ningbo Kangning Hospital, Ningbo 315201, Zhejiang Province, China
| | - Dong-Sheng Zhou
- Key Lab, Ningbo Kangning Hospital, Ningbo 315201, Zhejiang Province, China
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Gu RQ, Zheng CY, Zhang LF, Chen Z, Wang X, Cao X, Tian YX, Chen L, Zhou HH, Chen C, Hu Z, Song YX, Shao L, Tian Y, Wang ZW. [Prevalence of albuminuria and its association with cardiovascular diseases in Chinese residents aged over 35 years]. Zhonghua Nei Ke Za Zhi 2023; 62:290-296. [PMID: 36822855 DOI: 10.3760/cma.j.cn112138-20220328-00214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Objective: To investigate the prevalence of albuminuria in Chinese residents aged >35 years and its potential association with cardiovascular disease (CVD). Methods: A total of 34 647 Chinese subjects aged ≥35 years were selected by stratified multi-stage random sampling from 2012 to 2015. Data were collected through questionnaires, physical examinations, and laboratory tests. Albuminuria was categorized into 3 types according to urinary albumin-to- creatinine ratio: normal (<30 mg/g), microalbuminuria (MAU, 30-300 mg/g), and macroalbuminuria (≥300 mg/g). Measurement data were expressed as x¯±s, and t-tests were used for comparisons between indicators. Qualitative data were expressed as rate or constituent ratio, and the χ2 test or Kruskal-Wallis test was used to examine differences. Logistic regression was used for multivariate analyses. SAS 9.4 software was used for statistical analyses, and P<0.05 was considered statistically significant. Results: The prevalence of abnormal albuminuria was 19.1%; the prevalence was 17.2% for MAU and lower in males (13.8%) than females (20.1%, P<0.01). The risk of CVD was higher among subjects with MAU (OR=1.23, 95%CI 1.12-1.35) and macroalbuminuria (OR=1.86, 95%CI 1.50-2.32). When MAU was complicated by hypertension and diabetes mellitus, the CVD risk was 1.76 times higher. Conclusions: The prevalence of MAU is high among Chinese subjects aged 35 years and over. Those with MAU have higher CVD risk, especially those with hypertension and diabetes mellitus.
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Affiliation(s)
- R Q Gu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China Division of Prevention and Community Health, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,National Center for Cardiovascular Diseases, Beijing 102308, China
| | - C Y Zheng
- Division of Prevention and Community Health, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,National Center for Cardiovascular Diseases, Beijing 102308, China
| | - L F Zhang
- Division of Prevention and Community Health, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,National Center for Cardiovascular Diseases, Beijing 102308, China
| | - Z Chen
- Division of Prevention and Community Health, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,National Center for Cardiovascular Diseases, Beijing 102308, China
| | - X Wang
- Division of Prevention and Community Health, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,National Center for Cardiovascular Diseases, Beijing 102308, China
| | - X Cao
- Division of Prevention and Community Health, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,National Center for Cardiovascular Diseases, Beijing 102308, China
| | - Y X Tian
- Division of Prevention and Community Health, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,National Center for Cardiovascular Diseases, Beijing 102308, China
| | - L Chen
- Division of Prevention and Community Health, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,National Center for Cardiovascular Diseases, Beijing 102308, China
| | - H H Zhou
- Division of Prevention and Community Health, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,National Center for Cardiovascular Diseases, Beijing 102308, China
| | - C Chen
- Division of Prevention and Community Health, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,National Center for Cardiovascular Diseases, Beijing 102308, China
| | - Z Hu
- Division of Prevention and Community Health, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,National Center for Cardiovascular Diseases, Beijing 102308, China
| | - Y X Song
- Division of Prevention and Community Health, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,National Center for Cardiovascular Diseases, Beijing 102308, China
| | - L Shao
- Division of Prevention and Community Health, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,National Center for Cardiovascular Diseases, Beijing 102308, China
| | - Y Tian
- Division of Prevention and Community Health, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,National Center for Cardiovascular Diseases, Beijing 102308, China
| | - Z W Wang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China Division of Prevention and Community Health, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College,National Center for Cardiovascular Diseases, Beijing 102308, China
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Huang ZN, Zheng CY, Lu J, Huang CM. [Prevention and management of complications related to laparoscopic spleen-preserving hilar lymph node dissection for gastric cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:132-137. [PMID: 36797558 DOI: 10.3760/cma.j.cn441530-20221102-00449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Hilar splenic lymph node metastasis is one of the risk factors for poor prognosis in patients with proximal gastric cancer. Laparoscopic spleen-preserving splenic hilar lymph node dissection (LSPSHLD) can effectively improve the survival benefits of patients at high risk of splenic hilar lymph node metastasis. However, LSPSHLD is still a challenging surgical difficulty in radical resection of proximal gastric cancer. Moreover, improper operation can easily lead to splenic vascular injury, spleen injury and pancreatic injury and other related complications, due to the deep anatomical location of the splenic hilar region and the intricate blood vessels.Therefore, in the prevention and treatment of LSPSHLD-related complications, we should first focus on prevention, clarify the indication of surgery, and select the benefit group of LSPSHLD individually, so as to avoid the risk caused by over-dissection. Meanwhile, during the perioperative period of LSPSHLD, it is necessary to improve the cognition of related risk factors, conduct standardized and accurate operations in good surgical field exposure and correct anatomical level to avoid surrounding tissues and organs injury, and master the surgical skills and effective measures to deal with related complications, so as to improve the surgical safety of LSPSHLD.
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Affiliation(s)
- Z N Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - C Y Zheng
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China Department of Gastrointestinal Surgery, the Affiliated Hospital of Putian University, Putian 351100, China
| | - J Lu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - C M Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350001, China
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Chen Y, Zheng CY, Liu ZJ, Cao LH, Xiao CZ. Enhanced strong-coupling stimulated Brillouin amplification assisted by Raman amplification. Phys Rev E 2023; 107:015204. [PMID: 36797903 DOI: 10.1103/physreve.107.015204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 12/27/2022] [Indexed: 06/18/2023]
Abstract
Higher intensity of strong-coupling stimulated Brillouin scattering (SC-SBS) amplification is achieved by supplementary Raman amplification. In this scheme, a Raman pump laser first amplifies the seed pulse in the homogeneous plasma, and then a SC-SBS pump laser continues the amplification in the inhomogeneous plasma in order to suppress the spontaneous instability of pump lasers. The intensity of the seed laser gets higher and the duration of the seed laser gets shorter than that in the pure SC-SBS scheme with the same incident energy, while the energy conversion efficiency is not significantly reduced. We also found that the SC-SBS amplification is seeded by the leading pulse of Raman amplification. The results obtained from envelope coupling equations, Vlasov simulations, and two-dimensional particle-in-cell simulations agree with each other. This scheme offers a possible way to improve the SC-SBS amplification in experiments.
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Affiliation(s)
- Y Chen
- School of Electrical and Information Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, China
- Key Laboratory for Micro-/Nano-Optoelectronic Devices of Ministry of Education, School of Physics and Electronics, Hunan University, Changsha 410082, China
| | - C Y Zheng
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
- Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
| | - Z J Liu
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
| | - L H Cao
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
- Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
| | - C Z Xiao
- Key Laboratory for Micro-/Nano-Optoelectronic Devices of Ministry of Education, School of Physics and Electronics, Hunan University, Changsha 410082, China
- Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
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10
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Wang X, Zhou HH, Chen Z, Zhang LF, Zheng CY, Tian Y, Shao L, Zhu ML, Wang ZW, Gao R. [Current status of hypertension prevalence, treatment and control rate among young and middle-aged population in China]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:1169-1176. [PMID: 36517437 DOI: 10.3760/cma.j.cn112148-20220916-00721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Objective: To estimate the prevalence, awareness, treatment and control rate of hypertension among young and middle-aged population in China. Methods: The analysis was based on the results of 2012-2015 China Hypertension Survey, which was a cross-sectional stratified multistage random sampling survey. A total of 229 593 subjects were included in the final analysis. The data including sex, age, living in urban and rural areas, prevalence of hypertension, history of stroke, family history of coronary heart disease and drinking, physical examination, heart rate were collected. Hypertension was defined as mean systolic blood pressure (SBP) ≥140 mmHg (1 mmHg=0.133 kPa), and (or) diastolic blood pressure (DBP) ≥90 mmHg, and (or) self-report a history of hypertension, and (or) use of antihypertensive medicine within 2 weeks before survey. Prehypertension was defined as SBP between 120-139 mmHg, and (or) DBP between 80-89 mmHg. Control of hypertension was considered for hypertensive individuals with SBP<140 mmHg and DBP<90 mmHg. The prevalence of prehypertension, hypertension, awareness, treatment, control rate were calculated, and the control rate among those with antihypertensive medication was also calculated. Results: The prevalence of prehypertension and hypertension was 43.8% (95%CI: 42.3%-45.4%), and 22.1% (95%CI: 20.8%-23.3%), respectively. The prevalence of prehypertension and hypertension was significantly higher among male than female across different age groups. The awareness, treatment, control rate of hypertension and control rate among treated hypertensive participants were 43.8%, 33.2%, 16.7%, and 40.2%, respectively. The prevalence was higher, and the control rate was lower among individuals with higher heart rate. Conclusion: The prevalence of prehypertension and hypertension among young and middle-aged population is high, the awareness, treatment and control rate need to be further improved in this population. The prevention and treatment of hypertension should be strengthened in the future to improve the control rate of hypertension in China.
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Affiliation(s)
- X Wang
- Department of Prevention and Community Health, National Center for Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Science, Beijing 100037, China
| | - H H Zhou
- Department of Biostatistics, School of Public Health, Peking University, Beijing 100083, China
| | - Z Chen
- Department of Prevention and Community Health, National Center for Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Science, Beijing 100037, China
| | - L F Zhang
- Department of Prevention and Community Health, National Center for Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Science, Beijing 100037, China
| | - C Y Zheng
- Department of Prevention and Community Health, National Center for Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Science, Beijing 100037, China
| | - Y Tian
- Department of Prevention and Community Health, National Center for Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Science, Beijing 100037, China
| | - L Shao
- Department of Prevention and Community Health, National Center for Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Science, Beijing 100037, China
| | - M L Zhu
- Department of Prevention and Community Health, National Center for Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Science, Beijing 100037, China
| | - Z W Wang
- Department of Prevention and Community Health, National Center for Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Science, Beijing 100037, China
| | - Runlin Gao
- Department of Prevention and Community Health, National Center for Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Science, Beijing 100037, China
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11
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Ma MY, Chen XL, Chen Z, Wang X, Zhang LF, Li SN, Zheng CY, Kang YT, Zhou HH, Chen L, Cao X, Hu JH, Wang ZW. [Investigation on status of dyslipidemia in Chinese females aged 35 years or above]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:486-493. [PMID: 35589598 DOI: 10.3760/cma.j.cn112148-20211201-01035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the prevalence, awareness, treatment and control status of dyslipidemia among females aged ≥35 years old across China. Methods: Participants were selected by stratified multistage random sampling method in the "Twelfth Five-Year Plan" National Science and Technology Support Project "Survey on the Prevalence of Important Cardiovascular Diseases and Key Technology Research in China" project. This study is a retrospective, cross-sectional study. A total of 17 418 females aged 35 years and over were included in the current study. The basic information such as age, medical history and menopause was collected by questionnaire. The blood lipid parameters were derived from clinical laboratory examinations. The prevalence of dyslipidemia and the rate of awareness, treatment, and control of dyslipidemia were analyzed in females aged 35 years and over. Results: The age of participants was (56.2±13.0) years old, and the prevalence of dyslipidemia was 33.1% (5 765/17 418). The prevalence rates of high total cholesterol, hypertriglyceridemia, low HDL-C and high LDL-C were 9.7% (1 695/17 418), 11.1% (1 925/17 418), 10.9% (1 889/17 418) and 7.3% (1 262/17 418), respectively. The prevalence of dyslipidemia increased with age and the prevalence of dyslipidemia in women who were not married, Han, menarche age>16 years, obesity, central obesity, alcohol consumption, diabetes, hypertension and family history of cardiovascular disease were higher than those without such characteristics (P<0.05). There were 10 432 (59.9%) menopausal females in this cohort and prevalence of dyslipidemia of these participants was 38.8% (4 048/10 432), which was higher than that of non-postmenopausal females (24.6%, 1 717/6 986) (P<0.05). The awareness rates, treatment rates and control rates of dyslipidemia were 33.9% (1 953/5 765), 15.1% (870/5 765) and 2.5% (143/5 765) respectively among females aged 35 years and over in China. Conclusion: The prevalence of dyslipidemia in Chinese females aged 35 years and over is high, and its awareness, treatment, and control rates need to be optimized.
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Affiliation(s)
- M Y Ma
- School of Public Health, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, China
| | - X L Chen
- School of Public Health, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, China
| | - Z Chen
- Department of Community Prevention and Treatment, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - X Wang
- Department of Community Prevention and Treatment, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - L F Zhang
- Department of Community Prevention and Treatment, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - S N Li
- Department of Community Prevention and Treatment, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - C Y Zheng
- Department of Community Prevention and Treatment, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - Y T Kang
- Department of Community Prevention and Treatment, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - H H Zhou
- Department of Community Prevention and Treatment, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - L Chen
- Department of Community Prevention and Treatment, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - X Cao
- Department of Community Prevention and Treatment, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - J H Hu
- School of Public Health, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, China
| | - Z W Wang
- Department of Community Prevention and Treatment, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing 102308, China
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12
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Zhou D, Li A, Li X, Zhuang W, Liang Y, Zheng CY, Zheng H, Yuan TF. Effects of 40 Hz transcranial alternating current stimulation (tACS) on cognitive functions of patients with Alzheimer's disease: a randomised, double-blind, sham-controlled clinical trial. J Neurol Neurosurg Psychiatry 2022; 93:568-570. [PMID: 34764150 DOI: 10.1136/jnnp-2021-326885] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 10/20/2021] [Indexed: 11/04/2022]
Affiliation(s)
- Dongsheng Zhou
- Ningbo Kangning Hospital, Ningbo, Zhejiang, People's Republic of China
| | - Ang Li
- Guangdong Key Laboratory of Non-human Primate Research, Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, Guangdong, People's Republic of China.,Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangzhou, Guangdong, People's Republic of China.,Key Laboratory of CNS Regeneration (Jinan University), Ministry of Education, Guangzhou, Guangdong, People's Republic of China.,Department of Neurology, Guangdong Neuroscience Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, People's Republic of China
| | - Xingxing Li
- Ningbo Kangning Hospital, Ningbo, Zhejiang, People's Republic of China
| | - Wenhao Zhuang
- Ningbo Kangning Hospital, Ningbo, Zhejiang, People's Republic of China
| | - Yiyao Liang
- Guangdong Key Laboratory of Non-human Primate Research, Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, Guangdong, People's Republic of China
| | - Cheng-Ying Zheng
- Ningbo Kangning Hospital, Ningbo, Zhejiang, People's Republic of China
| | - Hong Zheng
- Ningbo Kangning Hospital, Ningbo, Zhejiang, People's Republic of China
| | - Ti-Fei Yuan
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China .,Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu, People's Republic of China.,Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital Affiliated to Tongji University School of Medicine, Shanghai, People's Republic of China
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13
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Feng QS, Aboushelbaya R, von der Leyen MW, Spiers BT, Paddock RW, Ouatu I, Timmis R, Wang RHW, Cao LH, Liu ZJ, Zheng CY, He XT, Norreys PA. Suprathermal electrons from the anti-Stokes Langmuir decay instability cascade. Phys Rev E 2022; 105:045208. [PMID: 35590581 DOI: 10.1103/physreve.105.045208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 04/07/2022] [Indexed: 06/15/2023]
Abstract
The study of parametric instabilities has played a crucial role in understanding energy transfer to plasma and, with that, the development of key applications such as inertial confinement fusion. When the densities are between 0.11n_{c}≲n_{e}≲0.14n_{c} and the electron temperature is in inertial confinement fusion-relevant temperatures, anomalous hot electrons with kinetic energies above 100keV are generated. Here a new electron acceleration mechanism-the anti-Stokes Langmuir decay instability cascade of forward stimulated Raman scattering-is investigated. This mechanism potentially explains anomalous energetic electron generation in indirectly driven inertial confinement fusion experiments, it also provides a new way of accelerating electrons to higher energy for applications such as novel x-ray sources.
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Affiliation(s)
- Q S Feng
- Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Oxford OX1 3PU, United Kingdom
| | - R Aboushelbaya
- Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Oxford OX1 3PU, United Kingdom
| | - M W von der Leyen
- Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Oxford OX1 3PU, United Kingdom
| | - B T Spiers
- Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Oxford OX1 3PU, United Kingdom
| | - R W Paddock
- Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Oxford OX1 3PU, United Kingdom
| | - I Ouatu
- Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Oxford OX1 3PU, United Kingdom
| | - R Timmis
- Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Oxford OX1 3PU, United Kingdom
| | - R H W Wang
- Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Oxford OX1 3PU, United Kingdom
| | - L H Cao
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
| | - Z J Liu
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
| | - C Y Zheng
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
| | - X T He
- Institute of Applied Physics and Computational Mathematics, Beijing 100094, China
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
| | - P A Norreys
- Department of Physics, Atomic and Laser Physics sub-Department, University of Oxford, Clarendon Laboratory, Oxford OX1 3PU, United Kingdom
- John Adams Institute, Denys Wilkinson Building, Oxford OX1 3RH, United Kingdom
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14
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Zhang ST, Yang T, Zhou YZ, Jiang Y, Xie R, Liu DJ, Li XM, Qiao B, Liu ZJ, Cao LH, Zheng CY, He XT. Polarization conversion in the caviton driven by linearly polarized lasers. Phys Rev E 2022; 105:L023202. [PMID: 35291060 DOI: 10.1103/physreve.105.l023202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 02/10/2022] [Indexed: 06/14/2023]
Abstract
In one-dimensional particle-in-cell simulations of a plasma irradiated by linearly polarized lasers from both sides of boundaries, it is found that there is an appreciable growth of the electromagnetic field in cavitons in the transverse direction perpendicular to the direction of polarization, which indicates the polarization conversion of the electromagnetic field in cavitons. This paper demonstrates the mechanism of this phenomenon based on parametric resonance induced by ponderomotive force with twice the frequency of the electromagnetic radiation in the caviton. We develop a theoretical model and verify it with simulation results. This phenomenon contributes to the heating and acceleration of particles and traps more EM energy in cavitons.
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Affiliation(s)
- S T Zhang
- Center for Applied Physics and Technology, HEDPS, and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, People's Republic of China
| | - T Yang
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, People's Republic of China
| | - Y Z Zhou
- Center for Applied Physics and Technology, HEDPS, and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, People's Republic of China
| | - Y Jiang
- Center for Applied Physics and Technology, HEDPS, and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, People's Republic of China
| | - R Xie
- Center for Applied Physics and Technology, HEDPS, and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, People's Republic of China
| | - D J Liu
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, People's Republic of China
| | - X M Li
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, People's Republic of China
| | - B Qiao
- Center for Applied Physics and Technology, HEDPS, and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, People's Republic of China
| | - Z J Liu
- Center for Applied Physics and Technology, HEDPS, and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, People's Republic of China
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, People's Republic of China
| | - L H Cao
- Center for Applied Physics and Technology, HEDPS, and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, People's Republic of China
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, People's Republic of China
| | - C Y Zheng
- Center for Applied Physics and Technology, HEDPS, and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, People's Republic of China
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, People's Republic of China
| | - X T He
- Center for Applied Physics and Technology, HEDPS, and State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, People's Republic of China
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, People's Republic of China
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15
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Xiao CZ, Chen YG, Myatt JF, Wang Q, Chen Y, Liu ZJ, Zheng CY, He XT. Absolute stimulated Brillouin side scattering in an inhomogeneous flowing plasma. Phys Rev E 2021; 104:065203. [PMID: 35030935 DOI: 10.1103/physreve.104.065203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 12/01/2021] [Indexed: 06/14/2023]
Abstract
Theory of absolute stimulated Brillouin side scattering in an inhomogeneous flowing plasma is presented and verified numerically. The linearized coupling equations are transformed into a Schrödinger equation in k space and solved as an eigenvalue problem. Analytic threshold, growth rate, and scattering geometry are obtained for the pump laser with arbitrary incidence angle. Numerical solutions of the coupling equations show good agreements between the theoretical and numerical absolute thresholds when ion-acoustic wave damping is not too large, and thus an old but famous threshold in [Phys. Fluids 17, 1211 (1974)PFLDAS0031-917110.1063/1.1694867] is corrected. It also indicates that the theoretical analysis is not accurate for strong dampings, since it will overestimate the absolute threshold. Possibility of finding such instability in the current experiments is also discussed.
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Affiliation(s)
- C Z Xiao
- School of Physics and Electronics, Hunan University, Changsha 410082, China
- Department of Electrical and Computer Engineering, 9211 116 St. NW, University of Alberta, Alberta T6G 1H9, Canada
- Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
| | - Y G Chen
- School of Physics and Electronics, Hunan University, Changsha 410082, China
| | - J F Myatt
- Department of Electrical and Computer Engineering, 9211 116 St. NW, University of Alberta, Alberta T6G 1H9, Canada
| | - Q Wang
- Department of Electrical and Computer Engineering, 9211 116 St. NW, University of Alberta, Alberta T6G 1H9, Canada
| | - Y Chen
- School of Physics and Electronics, Hunan University, Changsha 410082, China
| | - Z J Liu
- Institute of Applied Physics and Computational Mathematics, Beijing 100084, China
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
| | - C Y Zheng
- Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
- Institute of Applied Physics and Computational Mathematics, Beijing 100084, China
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
| | - X T He
- Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
- Institute of Applied Physics and Computational Mathematics, Beijing 100084, China
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
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16
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Huang FK, Zheng CY, Huang LK, Lin CQ, Zhou JF, Wang JX. Long non-coding RNA MCF2L-AS1 promotes the aggressiveness of colorectal cancer by sponging miR-874-3p and thereby up-regulating CCNE1. J Gene Med 2020; 23:e3285. [PMID: 33037865 DOI: 10.1002/jgm.3285] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 10/01/2020] [Accepted: 10/02/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) have drawn growing attention because of the role which they play in various diseases, including colorectal cancer (CRC). However, the potential functions of lncRNA MCF2L antisense RNA 1 (MCF2L-AS1) in tumors remained largely unclear. The present study aimed to explore the clinical significance and the biological effects of lncRNA MCF2L antisense RNA 1 (MCF2L-AS1) in CRC. METHODS Reverse transcriptase-polymerase chain reaction was performed to determine the expression of MCF2L-AS1 in CRC. The clinical significance of MCF2L-AS1 in CRC patients was analyzed statistically. In vitro experiments were performed to determine the effects of MCF2L-AS1 on the cellular progression of CRC cells. Bioinformatic assays, luciferase reporter assays and RNA-pulldown assays were performed to predict for potential microRNAs that can interact with MCF2L-AS1 and mRNAs that can interact with miR-874-3p. RESULTS We identified a novel CRC-related lncRNA, MCF2L-AS1, which is distinctly highly expressed in CRC. Its diagnostic value for CRC patients was also demonstrated. Clinical assays revealed that high MCF2L-AS1 expression is associated with advanced stages, positive metastasis and the poor prognosis of CRC patients. Multivariate assays confirmed that MCF2L-AS1 expression is an independent poor prognostic factor for both 5-year overall survival and 5-year disease-free survival of CRC patients. Functionally, we confirmed that knockdown of MCF2L-AS1 distinctly suppresses the proliferation, migration and invasion of CRC cells and also promotes apoptosis. Mechanistic investigation showed that MCF2L-AS1 functions as an endogenous sponge for miR-874-3p to increase the expression of CCNE1. CONCLUSIONS Our findings identified a novel CRC-related lncRNA, MCF2L-AS1, which may be used as a potential diagnostic and prognostic biomarker for CRC patients. In addition, the newly identified MCF2L-AS1/miR-874-3p/CCNE1 axis can modulate the initiation and progression of CRC.
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Affiliation(s)
- Fa-Kun Huang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Cheng-Ying Zheng
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Long-Kai Huang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Chang-Qing Lin
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Jun-Feng Zhou
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
| | - Jia-Xing Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
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17
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Yang SJ, Zhuo HB, Yin Y, Liu ZJ, Zheng CY, He XT, Xiao CZ. Growth and saturation of stimulated Raman scattering in two overlapping laser beams. Phys Rev E 2020; 102:013205. [PMID: 32795067 DOI: 10.1103/physreve.102.013205] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 06/17/2020] [Indexed: 11/07/2022]
Abstract
Two-dimensional particle-in-cell simulations are presented of the linear and nonlinear developments of stimulated Raman scattering in two overlapping laser beams. The development of the most unstable mode in the linear stage is consistent with a previous paper [C. Z. Xiao et al., Phys. Plasmas 26, 062109 (2019)PHPAEN1070-664X10.1063/1.5096850] where SL mode (two beams share a common scattered light) is dominant in the overlapping region. This mode is enhanced with plasma density and correlation of beam polarizations. When lasers are cross-polarized, it backs to the single-beam Raman backscattering with weak intensity. Trapping-induced nonlinear frequency shift leads to the saturation of SL mode by detuning the coupling and broadening the spectrum. An interesting result that SL mode becomes stronger as the incidence angle increases is contrary to the theoretical prediction and it is a consequence of less efficient saturation in the nonlinear stage.
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Affiliation(s)
- S J Yang
- Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education & Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha 410082, China
| | - H B Zhuo
- Center for Advanced Material Diagnostic Technology, Shenzhen Technology University, Shenzhen 518118, China
| | - Y Yin
- College of Science, National University of Defense Technology, Changsha 410073, China
| | - Z J Liu
- Institute of Applied Physics and Computational Mathematics, Beijing 100084, China.,HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
| | - C Y Zheng
- Institute of Applied Physics and Computational Mathematics, Beijing 100084, China.,HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China.,Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
| | - X T He
- Institute of Applied Physics and Computational Mathematics, Beijing 100084, China.,HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China.,Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
| | - C Z Xiao
- Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education & Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha 410082, China.,Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240, China
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Zheng CY, Cao R, Hong WS, Sheng MC, Hu YJ. Marsupialisation for the treatment of unicystic ameloblastoma of the mandible: a long-term follow up of 116 cases. Br J Oral Maxillofac Surg 2019; 57:655-662. [PMID: 31230852 DOI: 10.1016/j.bjoms.2019.06.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 06/05/2019] [Indexed: 12/01/2022]
Abstract
Unicystic ameloblastoma is a unique histopathological type of ameloblastoma, and treatment is controversial. Marsupialisation is effective in reducing the size of cystic lesions and their complications. We have retrospectively analysed the clinical, histopathological, and prognostic data of affected patients who were treated by marsupialisation between 2003 and 2013 in three Chinese hospitals. Our aim was to evaluate the effects and prognosis, and the factors associated with outcome. A total of 116 patients with mandibular unicystic ameloblastomas were included, and 74, 26, and 16 patients were histopathologically classified as being luminal, intraluminal, and mural subtypes, respectively. Most responded well to marsupialisation, with an overall recurrence rate of 12%. Resorption of the root (p<0.001), perforation of the cortical bone (p=0.005), and histopathological subtype (p=0.013) were the main factors that predicted the outcome. Perforation of the cortical bone was the only reliable predictor of recurrence (p<0.001). Disease-free survival function curves indicated that patients with the mural subtype were at a higher risk of recurrence than patients with the other two subtypes (p=0.003). Poor outcomes of marsupialisation were treated surgically and, to date, no subsequent recurrences have been reported. Marsupialisation is effective for these patients, with a recurrence rate similar to that of radical treatment. The outcomes can be predicted using characteristics of the lesion such as resorption of the root, perforation of the cortical bone, and histopathological subtypes. However, additional studies are required to corroborate these findings.
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Affiliation(s)
- C Y Zheng
- Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Huzhou University, Guangchanghou Road No. 158, Wuxing District, Huzhou, 313000, Zhejiang, PR China.
| | - R Cao
- Department of Oral and Maxillofacial Surgery, Second People's Hospital of Changshu, Haiyunan Road No. 68, Yushan District, Changshu, 215500, Jiangsu, PR China
| | - W S Hong
- Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Huzhou University, Guangchanghou Road No. 158, Wuxing District, Huzhou, 313000, Zhejiang, PR China
| | - M C Sheng
- Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Huzhou University, Guangchanghou Road No. 158, Wuxing District, Huzhou, 313000, Zhejiang, PR China
| | - Y J Hu
- Department of Oral-Maxillofacial Head and Neck Oncology, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Zhizaoju Road, No. 639, Huangpu District, Shanghai, 200011, PR China.
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Zhu YQ, Ma SP, Li B, Zheng CY, Ma J. [Interleukin-38 expression and clinical significance in serum of patients with chronic obstructive pulmonary disease]. Zhonghua Yi Xue Za Zhi 2018; 98:759-762. [PMID: 29562401 DOI: 10.3760/cma.j.issn.0376-2491.2018.10.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the serum level of interleukin-38 (IL-38) and its clinical significance in patients with chronic obstructive pulmonary disease (COPD). Methods: Totally 72 patients with acute exacerbation of COPD (AECOPD group) and 65 patients with stable COPD (S-COPD group) were recruited from Tianjin Chest Hospital from June 2016 to August 2017. In the same period 40 elderly healthy subjects were selected as control group (C group). The general data and laboratory examination results of these subjects were recorded. Serum IL-38 was measured by double antibody enzyme-linked immunosorbent assays (ELISA). The inter-group differences of above parameters were analyzed. Pearson correlation or Spearman rank correlation analysis was used to analyze the correlation between IL-38 and each variable, and multivariate stepwise regression analysis was used to determine the influencing factors of serum IL-38 in COPD patients. Results: The serum level of IL-38 was higher in AECOPD group than in S-COPD group[(57.88±13.72) vs (51.75±14.06) ng/L, P<0.05], and was higher in either of the two COPD groups than in C group[(46.37±13.18) ng/L](both P<0.05). Correlation analysis of single factor showed that serum IL-38 levels were positively correlated with body mass index (r=0.190, P<0.05), and negatively correlated with C reactive protein (CRP), fibrinogen (FIB), forced expiratory volume in one second as a percentage of estimated value (FEV1%pred) and the number of acute exacerbations in the past 1 year (r=-0.344, -0.176, -0.195, -0.229, all P<0.05). The CRP level and the number of acute exacerbations in the past 1 year were independent factors affecting the serum level of IL-38 (β=-0.204, -0.183, both P<0.05) in patients with COPD. Conclusion: IL-38 is compensatory increased in serum of patients with COPD and may be used as one of the serological markers for evaluation of COPD.
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Affiliation(s)
- Y Q Zhu
- Department of Respiratory and Critical Care Medicine, Tianjin Chest Hospital, Tianjin 300222, China
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Zheng CY, Zou X, Zhao BC, Zhang ML, Lin HJ, Luo CH, Xu ZM, Shao LY, Fu SX. miRNA-185 regulates retained fetal membranes of cattle by targeting STIM1. Theriogenology 2018; 126:166-171. [PMID: 30553977 DOI: 10.1016/j.theriogenology.2018.11.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 11/01/2018] [Accepted: 11/26/2018] [Indexed: 12/18/2022]
Abstract
Retained fetal membranes (RFM) of cows is an important reproductive disturbance, and is related to miRNA-185. Stromal interaction molecule 1 (STIM1), a potential target gene of miRNA-185, could influence placenta release via regulating Ca2+ concentration intracellular. The aim of this study was to explore the mechanism of RFM by investigating the regulatory relationship between miRNA-185 and STIM1 in primary uterine caruncel epithelial (UCE) cells. Serum samples of healthy Holstein dairy cows (n = 20) and RFM cows (n = 12), with a similar age, parity, weight, and milk yield, were collected to detect Ca2+ concentration at prepartum 1-5 d and postpartum 6, 12 and 24 h. Caruncle tissues were collected from healthy (n = 6) and RFM cows (n = 6) at 12 h after calving. Quantitative polymerase chain reaction (Q-PCR) and western blotting (WB) were performed to detect the mRNA and protein levels of STIM1, respectively. UCE cells were cultured by the explant culture method, further purified, and subsequently treated with PmirGLO-STIM1-Mut + miRNA-185 mimics and mirGLO-STIM1-Mut + miRNA-185 NC. Q-PCR and WB were performed to detect mRNA and protein levels of STIM1 with treated miRNA-185 mimics. Serum levels of Ca2+ from RFM cows were abnormally decreased at prepartum 1 d and postpartum 6, 12 and 24 h. Expression level of STIM1 was down-regulated in the caruncle tissue of RFM cows. The luciferase activity was decresed about 30.9% by miRNA-185 mimics (p < 0.01), and the mRNA and protein levels of STIM1 were downregulated miRNA-185-mimics. It was suggesting that miRNA-185 might play an important role in RFM through regulating the expression of STIM1.
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Affiliation(s)
- C Y Zheng
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China; College of Food and Biological Engineering, Qiqihar University, Qiqihar 161000, China
| | - X Zou
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - B C Zhao
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - M L Zhang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - H J Lin
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - C H Luo
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - Z M Xu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - L Y Shao
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China
| | - S X Fu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing 163319, China.
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21
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Zheng CY, Wang ZW, Chen Z, Zhang LF, Wang X, Dong Y, Nie JY, Wang JL, Shao L, Tian Y. [Association between the types of obesity and the 10-year-coronary heart disease risk, in Tibet Autonomous Region and Xinjiang Uygur Autonomous Region]. Zhonghua Liu Xing Bing Xue Za Zhi 2017. [PMID: 28647970 DOI: 10.3760/cma.j.issn.0254-6450.2017.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the association between types of obesity and the 10-year-coronary heart disease risk in Tibet and Xinjiang of China. Methods: Using the multi-stage random sampling method, 7 631 participants aged 35 or older were examined under the International Standardized Examination process but with only 5 802 were eligible for analysis, in the 2015-2016 season. Results: The prevalence rates of general obesity, central obesity, visceral obesity and compound obesity were 0.53%, 12.62%, 10.08% and 42.35%, respectively. Out of all the compound obesity cases, 58.65% (1 441/2 457) of them appeared as having all types of obesity in our study. Risk related to the 10-year-coronary heart disease was higher in men than in women [(3.05±4.14)% vs. (1.42±2.37) %, P<0.000 1. Compound obesity (30.16%) showed the highest proportion on the risk of 10-year-coronary heart disease than central obesity (28.01%), visceral obesity (18.46%) or the general obesity (19.35%). After adjustment for confounding factors, results from the multivariate analysis showed the risk in compound obesity was higher than central obesity, visceral obesity or general obesity and was associated with the highest risk on the 10-year-coronary heart disease (OR=2.889, 95%CI: 2.525-3.305). People with anomalous BMI and WC seemed to have had the higher risk (OR=3.168, 95%CI: 2.730-3.677). Conclusions: Obesity was popular in the residents of Tibet and Xinjiang areas of China. Men and people with compound obesity (especially both BMI and WC were abnormal) seemed to carry greater risk on the 10-year-coronary heart disease.
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Affiliation(s)
- C Y Zheng
- Division of Prevention and Community Health, National Center for Cardiovascular Diseases; Fuwai Hospital, PUMC and CAMS, Beijing 102308, China
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22
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Wang JL, Chen Z, Zhang LF, Wang X, Dong Y, Nie JY, Zheng CY, Shao L, Tian Y, Wang ZW. [Association between body fat percentage, visceral fat index and cardiometabolic risk factor clustering among population aged 35 year old or over, in Tibet Autonomous Region and Xinjiang Uygur Autonomous Region]. Zhonghua Liu Xing Bing Xue Za Zhi 2017. [PMID: 28647971 DOI: 10.3760/cma.j.issn.0254-6450.2017.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the association between body fat percentage (BFP), visceral fat index (VFI) and Cardiometabolic Risk Factor Clustering (CRFC), among population aged 35 or older in Tibet and Xinjiang areas. Methods: Using the stratified multi-stage random sampling method, 7 571 residents aged 35 or above were examined with international standardized examination between 2015 and 2016. Of the eligible 5 643 participants, association of BFP and VFI with CRFC was defined as having two or more of the four risk factors: hypertension, diabetes mellitus, high TG and low HDL-C, at the same time. Logistic regression analysis and receiver operating characteristic (ROC) curve analysis were employed to further explore the relationships. Results: The overall prevalence of CRFC among aged 35 and older population in Tibet and Xinjiang areas was 9.78%. BFP and VFI were divided into four groups by quartile. After adjustment for age, gender, race, cigarette smoking, alcohol consumption, education attainments, and altitude of residence, ORs of CRFC seemed to have increased with BFP and VFI. Compared with people having BFP of 5.0%-27.0%, the OR(95% CI) were 1.15(0.86-1.54), 1.48(1.05-2.07) and 1.72(1.10-2.68) for the ones who presented 27.1%-31.7%, 31.8%-36.6% and 36.7%-50.0% of BFP. Compared to people of having 1-6 of VFI, with OR (95%CI) as 1.20(0.81-1.79), 1.91(1.30-2.80) and 3.91(2.64-5.77) for the ones having 7-9, 10-13 and 14-30 of VFI. Areas under the curve (AUC) of CRFC appeared as 0.55 for BFP and 0.70 for VFI, respectively, with statistically significant difference (P<0.01). Conclusion: Both BFP and VFI levels were closely associated with CRFC while VFI seemed to have a better predictive value than the BFP.
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Affiliation(s)
- J L Wang
- Division of Prevention and Community Health, National Center for Cardiovascular Diseases; Fuwai Hospital, PUMC and CAMS, Beijing 102308, China
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23
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Feng QS, Xiao CZ, Wang Q, Zheng CY, Liu ZJ, Cao LH, He XT. Fluid nonlinear frequency shift of nonlinear ion acoustic waves in multi-ion species plasmas in the small wave number region. Phys Rev E 2016; 94:023205. [PMID: 27627405 DOI: 10.1103/physreve.94.023205] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Indexed: 11/07/2022]
Abstract
The properties of the nonlinear frequency shift (NFS), especially the fluid NFS from the harmonic generation of the ion-acoustic wave (IAW) in multi-ion species plasmas, have been researched by Vlasov simulation. Pictures of the nonlinear frequency shift from harmonic generation and particle trapping are shown to explain the mechanism of NFS qualitatively. The theoretical model of the fluid NFS from harmonic generation in multi-ion species plasmas is given, and the results of Vlasov simulation are consistent with the theoretical result of multi-ion species plasmas. When the wave number kλ_{De} is small, such as kλ_{De}=0.1, the fluid NFS dominates in the total NFS and will reach as large as nearly 15% when the wave amplitude |eϕ/T_{e}|∼0.1, which indicates that in the condition of small kλ_{De}, the fluid NFS dominates in the saturation of stimulated Brillouin scattering, especially when the nonlinear IAW amplitude is large.
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Affiliation(s)
- Q S Feng
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
| | - C Z Xiao
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China.,School of Physics and Electronics, Hunan University, Changsha 410082, People's Republic of China
| | - Q Wang
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China
| | - C Y Zheng
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China.,Institute of Applied Physics and Computational Mathematics, Beijing, 100094, China.,Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Z J Liu
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China.,Institute of Applied Physics and Computational Mathematics, Beijing, 100094, China
| | - L H Cao
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China.,Institute of Applied Physics and Computational Mathematics, Beijing, 100094, China.,Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai, 200240, China
| | - X T He
- HEDPS, Center for Applied Physics and Technology, Peking University, Beijing 100871, China.,Institute of Applied Physics and Computational Mathematics, Beijing, 100094, China.,Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai, 200240, China
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24
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Wang JC, Zhang B, Wang JP, Li HG, Wang SF, Sun LJ, Zheng CY. Effects of heat stress on survival of Frankliniella occidentalis (Thysanoptera: Thripidae) and Thrips tabaci (Thysanoptera: Thripidae). J Econ Entomol 2014; 107:1426-1433. [PMID: 25195431 DOI: 10.1603/ec14127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Temperature is known to play a crucial role in the population dynamics of insects. Insects have evolved different mechanisms to resist unfavorable extreme temperatures. In recent years, western flower thrips, Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), and onion thrips, Thrips tabaci (Lindeman) (Thysanoptera: Thripidae), have caused significant damage to vegetable crops. Because of global warming and expanding areas of vegetable cultivation, a study of the effects of heat stress on these thrips species is warranted. We exposed the various developmental stages of western flower thrips and onion thrips to temperatures of 41, 43, or 45 degrees C for 2, 6, 12, 24, or 36 h to determine the effects of heat stress on survival. Our results showed that the heat resistance of nonadult western flower thrips was greater than that of the nonadult onion thrips, and that the natural heat resistant ability was the primary factor in heat resistance in western flower thrips. In contrast, the heat resistance of adult onion thrips was greater than that of the adult western flower thrips, which was primarily the result of the ability of searching suitable microenvironment that enabled the onion thrips to mitigate the effects of high temperatures more efficiently than the western flower thrips. Our analysis of the differences in heat resistance between western flower thrips and onion thrips provides important information for the development of thermal treatments for controlling western flower thrips and onion thrips.
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25
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Wu D, Zheng CY, Qiao B, Zhou CT, Yan XQ, Yu MY, He XT. Suppression of transverse ablative Rayleigh-Taylor-like instability in the hole-boring radiation pressure acceleration by using elliptically polarized laser pulses. Phys Rev E Stat Nonlin Soft Matter Phys 2014; 90:023101. [PMID: 25215833 DOI: 10.1103/physreve.90.023101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Indexed: 06/03/2023]
Abstract
It is shown that the transverse Rayleigh-Taylor-like (RT) instability in the hole-boring radiation pressure acceleration can be suppressed by using an elliptically polarized (EP) laser. A moderate J×B heating of the EP laser will thermalize the local electrons, which leads to the transverse diffusion of ions, suppressing the short wavelength perturbations of RT instability. A proper condition of polarization ratio is obtained analytically for the given laser intensity and plasma density. The idea is confirmed by two-dimensional particle-in-cell simulations, showing that the ion beam driven by the EP laser is more concentrated and intense compared with that of the circularly polarized laser.
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Affiliation(s)
- D Wu
- Key Laboratory of HEDP of the Ministry of Education, CAPT, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, 100871, China
| | - C Y Zheng
- Key Laboratory of HEDP of the Ministry of Education, CAPT, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, 100871, China and Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China
| | - B Qiao
- Key Laboratory of HEDP of the Ministry of Education, CAPT, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, 100871, China
| | - C T Zhou
- Key Laboratory of HEDP of the Ministry of Education, CAPT, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, 100871, China and Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China
| | - X Q Yan
- Key Laboratory of HEDP of the Ministry of Education, CAPT, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, 100871, China
| | - M Y Yu
- Institute of Fusion Theory and Simulation, Zhejiang University, Hangzhou, 310027, China
| | - X T He
- Key Laboratory of HEDP of the Ministry of Education, CAPT, and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, 100871, China and Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China
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Zhang CT, Shi D, Zheng Y, Zheng CY, Li QH. Chronopharmacokinetics of puerarin in diabetic rats. Indian J Pharm Sci 2013; 75:357-61. [PMID: 24082353 PMCID: PMC3783755 DOI: 10.4103/0250-474x.117407] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2012] [Revised: 04/05/2013] [Accepted: 04/09/2013] [Indexed: 11/30/2022] Open
Abstract
Puerarin injection has been widely used for clinic treatment of diabetes recently. To assess the relationship between the administration time of puerarin and the blood concentration of puerarin as well as its pharmacokinetic parameters, the diabetic rat model was used in current study. The rats were randomly divided into morning and evening groups according to the administration time. After the puerarin injection, blood glucose was tested in order to know whether the efficiency of puerarin was influenced by its concentration and pharmacokinetic parameters. Our results show that the average concentration of puerarin in the evening group is significantly higher than that in the morning group. The numbers of t1/2α, t1/2β, CL and AUC(0-∞) are significantly different between the morning and evening groups. The blood glucose level in the evening group was lower than that in the morning group. The speed of its onset is higher and the blood glucose level declines much more significantly in the evening group. These findings suggest that the concentration and pharmacokinetic parameters of puerarin affect its efficiency in diabetic rats. Therefore, it might be better to give puerarin in evening than in the morning for the mellitus treatment.
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Affiliation(s)
- C T Zhang
- Department of Clinical Pharmacy, College of Pharmacy, Heilongjiang University of Chinese Medicine, 24 Heping Road, Harbin 150040, China
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Jiang H, Liu CX, Feng JB, Wang P, Zhao CP, Xie ZH, Wang Y, Xu SL, Zheng CY, Bi JZ. Granulocyte colony-stimulating factor attenuates chronic neuroinflammation in the brain of amyloid precursor protein transgenic mice: an Alzheimer's disease mouse model. J Int Med Res 2010; 38:1305-12. [PMID: 20926003 DOI: 10.1177/147323001003800412] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Recent evidence suggests that inflammatory mechanisms contribute significantly to the progression of Alzheimer's disease. Granulocyte colony-stimulating factor (G-CSF) is an anti-inflammatory immunomodulator, but the mechanism of its anti-inflammatory effect is unclear. This study was designed to investigate whether G-CSF could inhibit inflammation in a mouse model of Alzheimer's disease through an α7 nicotinic acetylcholine receptor (α7 nAChR) pathway. Mice transgenic for the V171I mutant amyloid precursor protein (APP) were injected subcutaneously with G-CSF 50 μg/kg per day or phosphate-buffered saline (PBS; control group) for 7 days, and wild-type C57/BL6 mice were injected with PBS daily for 7 days. Mice were killed on days 7, 14 and 28 after treatment began. Levels of α7 nAChR protein were significantly increased and levels of interleukin-1β, tumour necrosis factor-α and nuclear factor-κB (NF-κB) protein were significantly decreased in the brain of APP transgenic mice in response to G-CSF. Levels of α7 nAChR protein correlated negatively with NF-κB levels. It is concluded that G-CSF might attenuate inflammation by down-regulating NF-κB and up-regulating α7 nAChR in the brain of APP transgenic mice, indicating a potential new therapeutic approach to Alzheimer's disease.
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Affiliation(s)
- H Jiang
- Department of Neurology, Second Hospital of Shandong University, Jinan, China
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Hao YL, Li SJ, Sun SY, Zheng CY, Yang R. Elastic deformation behaviour of Ti-24Nb-4Zr-7.9Sn for biomedical applications. Acta Biomater 2007; 3:277-86. [PMID: 17234466 DOI: 10.1016/j.actbio.2006.11.002] [Citation(s) in RCA: 112] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2006] [Revised: 11/02/2006] [Accepted: 11/07/2006] [Indexed: 11/25/2022]
Abstract
In this paper, the elastic deformation behaviour of a recently developed beta-type titanium alloy Ti-24Nb-4Zr-7.9Sn (wt.%) that consists of non-toxic elements and is intended for biomedical applications is described. Tensile tests show that this alloy in the as hot-rolled state exhibits peculiar non-linear elastic behaviour with maximum recoverable strain up to 3.3% and incipient Young's modulus of 42GPa. Solution treatment at high temperature has trivial effect on super-elasticity but decreases strength and slightly increases the incipient Young's modulus. Ageing treatment in the (alpha+beta) two-phase field increases both strength and Young's modulus and results in a combination of high strength and relatively low elastic modulus. In spite of the formation of the alpha phase, short time ageing has no effect on super-elasticity, whereas the non-linear elastic behaviour transforms gradually to normal linear elasticity with the increase of ageing time. We suggest sluggish, partially reversible processes of stress-induced phase transformation and/or incipient kink bands as the origin of the above peculiar elastic behaviour.
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Affiliation(s)
- Y L Hao
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China.
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He XT, Zheng CY, Zhu SP. Harmonic modulation instability and spatiotemporal chaos. Phys Rev E Stat Nonlin Soft Matter Phys 2002; 66:037201. [PMID: 12366301 DOI: 10.1103/physreve.66.037201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2002] [Indexed: 05/23/2023]
Abstract
It is shown from the conserved Zakharov equations that many solitary patterns are formed from the modulational instability of unstable harmonic modes that are excited by a perturbative wave number. Pattern selection in our case is discussed. It is found that the evolution of solitary patterns may appear in three states: spatiotemporal coherence, chaos in time but the partial coherence in space, and spatiotemporal chaos. The spatially partial coherent state is essentially due to ion-acoustic wave emission, while spatiotemporal chaos characterized by its incoherent patterns in both space and time is caused by collision and fusion among patterns in stochastic motion. So energy carried by patterns in the system is redistributed.
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Affiliation(s)
- X T He
- Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100088, China
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Abstract
Cytotoxic T-lymphocyte-associated antigen (CTLA-4) is an important downregulator of T-cell activation. In order to analyze the expression and regulation of CTLA-4 on human peripheral T cells, CTLA-4 mRNA and protein expression were determined using analysis by reverse transcription-polymerase chain reaction (RT-PCR) and FACs, respectively. Intracellular CTLA-4 was constitutively expressed in unstimulated CD4+ and CD8+ T cells. Interleukin (IL)-2 induced a dose-dependent increase of both intracellular and surface expression of CTLA-4 (CD152). Most of the CD4+ and CD8+ cells expressing CTLA-4 also expressed CD25. Interferon (IFN)-gamma induced the upregulation of CTLA-4 expression via antigen-presenting cells (APC) activation. The CTLA-4delTM mRNA (550 bp) had a shorter half-life than the full length CTLA-4 mRNA and the expression was downregulated upon activation of the cells by treatment with IL-2. Given an inhibitory role of CTLA-4 and CD4+ CD25+ T cells in immune responses, the present findings suggest that IL-2-induced immunosuppression may result from its stimulatory effect of the CTLA-4 expression.
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Affiliation(s)
- X B Wang
- Immunological Research Unit, Center for Molecular Medicine, Karolinska Institutet, SE-171 76 Stockholm, Sweden
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31
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Abstract
Acute megakaryoblastic leukemia is uncommon and comprises about 5% of acute nonlymphoid leukemias in the French-American-British classification. Cell lines from such leukemias are relatively rare with only about 8 reported in the literature. We established a cell line from a case of acute megakaryoblastic leukemia arising in a 2-year-old child. Surface marker studies of the cells confirmed their megakaryoblastic nature, with 54% of the cells being CD61 positive and peroxidase and esterase negative. The cells had a doubling time of 72 h. Emperipolesis (a phenomenon in which a cell, usually a lymphocyte or neutrophil, enters another cell, moves about and leaves without undergoing phagocytosis) of one blast into another, larger one, was occasionally seen, and a review of the original bone marrow specimen also showed emperipolesis of neutrophils into the megakaryoblasts. The cells responded to interleukin 3 and were inhibited with all-trans-retinoic acid. The karyotype of the cells was the 46,XX,-16 with a marker chromosome. The marker chromosome is possibly chromosome 16 with a small segment of a chromosome translocated to the terminal portion of chromosome 16.
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MESH Headings
- Antigens, CD/analysis
- Antigens, CD34/analysis
- Antigens, Differentiation, Myelomonocytic/analysis
- Cell Culture Techniques
- Cell Division
- Cell Nucleus/pathology
- Child, Preschool
- Cytoplasm/pathology
- Humans
- Integrin beta3
- Interleukin-3/pharmacology
- Karyotyping
- Leukemia, Megakaryoblastic, Acute/immunology
- Leukemia, Megakaryoblastic, Acute/pathology
- Platelet Glycoprotein GPIIb-IIIa Complex/analysis
- Platelet Membrane Glycoproteins/analysis
- Ploidies
- Sialic Acid Binding Ig-like Lectin 3
- Tretinoin/pharmacology
- Tumor Cells, Cultured
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Affiliation(s)
- L F Skinnider
- Department of Pathology, University of Saskatchewan, Saskatoon, Canada
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32
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Zheng CY, Pabello P, Maksymiuk AW, Skinnider LF. Establishment of cell lines derived from chronic lymphocytic leukaemic cells by transfection with myc and ras. Br J Haematol 1996; 93:681-3. [PMID: 8652393 DOI: 10.1046/j.1365-2141.1996.d01-1688.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Seventy-one samples from 37 cases of chronic lymphocytic leukaemia (CLL) were transfected with human c-myc and/or N-ras. In only three cases did the CLL cells further transform and four cell lines were established following transfection with myc plus ras. Surface marker profiles and immunoglobulin gene rearrangement studies confirm that all cell lines have arisen from the original CLL cells. The cell lines are EBNA positive but negative for EBV latent membrane protein (LMP). Karyotyping of the cell lines is as follows: SA4, 46,XY; SA4-2, 45,XY, 20; RK4, 48,XY,+ 5,+ 12; EHC4, 47,XY, t(14;18)(q32;q21), + 12. Although the majority of CLL cells appear resistant to transformation in vitro with myc and ras with the methods used, it does occur in a small percentage (about 8%). There appeared to be no correlation between the ability to transform in vitro and clinical behaviour.
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Affiliation(s)
- C Y Zheng
- Department of Pathology, College of Medicine, University of Saskatchewan, Canada
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34
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Zheng CY, Pabello P, Skinnider LF. Characteristics of a cell line established from a T cell acute leukemia by transfection with the bcl-2 gene. Acta Haematol 1994; 91:181-6. [PMID: 7976115 DOI: 10.1159/000204331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The bcl-2 gene product inhibits apoptosis and thus its over-expression may promote development of the malignant phenotype under certain circumstances. We have introduced the bcl-2 alpha and bcl-2 beta genetic elements into T cell acute lymphoblastic leukemic blasts. These transfectants were able to survive and grow in liquid culture with the establishment of cell lines while the untransfected blast cells died off. Thus transfection of the bcl-2 genes appears to give additional survival advantages to already malignant cells. Although the original leukemic blasts did not have cytoplasmic granules, the established transfectants have a morphology and surface marker profile compatible with large granular lymphoid cells.
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Affiliation(s)
- C Y Zheng
- Department of Pathology, University of Saskatchewan, Saskatoon, Canada
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35
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Abstract
The association of HLA with malignant lymphomas in 50 Chinese patients of the HAN nationality was investigated. The frequencies of antigens HLA-A and -C and the majority of HLA-B phenotypes were not significantly different between the patient and control groups, whereas the antigen frequency of HLA-B16 was increased significantly (P less than 0.025) in the patient group. The relative risk associated with HLA-B16 was 2.5694. The association of this antigen with malignant lymphoma might be unique for Oriental patients.
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