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Wang LQ, Dong BH, Chen JP. [Two cases of acute freon poisoning]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:852-854. [PMID: 38073215 DOI: 10.3760/cma.j.cn121094-20221117-00547] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Freon is widely used in daily life, which is usually absorbed through the respiratory tract and causes clinical manifestations mainly in the cardiovascular system and neurological damage. Now, we analyze the clinical data, diagnosis, treatment and prognosis of two cases of freon poisoning in Affiliated Dongyang People's Hospital of Wenzhou Medical University to improve the clinicians' understanding of freon poisoning and to avoid missed diagnosis and misdiagnosis.
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Affiliation(s)
- L Q Wang
- Emergency Department, Affiliated Dongyang People's Hospital of Wenzhou Medical University, Jinhua 322100, China
| | - B H Dong
- Emergency Department, Affiliated Dongyang People's Hospital of Wenzhou Medical University, Jinhua 322100, China
| | - J P Chen
- Emergency Department, Affiliated Dongyang People's Hospital of Wenzhou Medical University, Jinhua 322100, China
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Zhu YJ, Liu ZG, Wen AN, Gao ZX, Qin QZ, Fu XL, Wang Y, Chen JP, Zhao YJ. [Deep learning-assisted construction of three-dimensional face midsagittal plane based on point clouds]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:1179-1184. [PMID: 37885192 DOI: 10.3760/cma.j.cn112144-20230825-00110] [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: 10/28/2023]
Abstract
Objective: To establish an intelligent registration algorithm under the framework of original-mirror alignment algorithm to construct three-dimensional(3D) facial midsagittal plane automatically. Dynamic Graph Registration Network (DGRNet) was established to realize the intelligent registration, in order to provide a reference for clinical digital design and analysis. Methods: Two hundred clinical patients without significant facial deformities were collected from October 2020 to October 2022 at Peking University School and Hospital of Stomatology. The DGRNet consists of constructing the feature vectors of key points in point original and mirror point clouds (X, Y), obtaining the correspondence of key points, and calculating the rotation and translation by singular value decomposition. Original and mirror point clouds were registrated and united. The principal component analysis (PCA) algorithm was used to obtain the DGRNet alignment midsagittal plane. The model was evaluated based on the coefficient of determination (R2) index for the translation and rotation matrix of test set. The angle error was evaluated on the 3D facial midsagittal plane constructed by the DGRNet alignment midsagittal plane and the iterative closet point(ICP) alignment midsagittal plane for 50 cases of clinical facial data. Results: The average angle error of the DGRNet alignment midsagittal plane and ICP alignment midsagittal plane was 1.05°±0.56°, and the minimum angle error was only 0.13°. The successful detection rate was 78%(39/50) within 1.50° and 90% (45/50)within 2.00°. Conclusions: This study proposes a new solution for the construction of 3D facial midsagittal plane based on the DGRNet alignment method with intelligent registration, which can improve the efficiency and effectiveness of treatment to some extent.
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Affiliation(s)
- Y J Zhu
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Z G Liu
- School of Computer Science, Beijing University of Posts and Telecommunications National Pilot Software Engineering School & Key Laboratory of Trustworthy Distributed Computing and Service, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - A N Wen
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Z X Gao
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Q Z Qin
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - X L Fu
- School of Computer Science, Beijing University of Posts and Telecommunications National Pilot Software Engineering School & Key Laboratory of Trustworthy Distributed Computing and Service, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - Y Wang
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - J P Chen
- School of Computer Science, Beijing University of Posts and Telecommunications National Pilot Software Engineering School & Key Laboratory of Trustworthy Distributed Computing and Service, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - Y J Zhao
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Li SX, Ji W, Wei XY, Cui J, Ying YY, Chen JP, Li H, Liu SW. [Effect of health management service for hypertension patients under framework of Basic Public Health Service Project: a regression discontinuity design]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:772-777. [PMID: 37221066 DOI: 10.3760/cma.j.cn112338-20220721-00649] [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: 05/25/2023]
Abstract
Objective: To evaluate the effect of health management service on hypertension patients (HMSFHP) under the framework of the Basic Public Health Service Project by using regression discontinuity design. Methods: The participants were enrolled from an observational cohort survey in 2015 and followed up was conducted in 2019. The participants with SBP 130-150 mmHg and/or DBP 80-100 mmHg in the baseline survey of the cohort in 2015 were included in the present study. Additionally, we obtained the dates of participants receiving HMSFHP and their blood pressure data from follow-up records, physical examination records and telephone interview. The participants were divided into intervention group and control group based on the cutoff points, i.e. SBP ≥140 mmHg and/or DBP ≥90 mmHg. The local linear regression model were used to estimate the effect of HMSFHP on reducing blood pressure of the participants. Results: After adjusting for age, sex and time length of receiving HMSFHP, the results of the model including participants with 80-100 mmHg for DBP in 2015 indicated that, for the participants who received HMSFHP, the DBP decreased by 6.66 mmHg from 2015 to 2019. For the participants with SBP 130-150 mmHg in 2015, the reduction estimate of the model was -6.17 mmHg, the difference was not significant (P=0.178), suggesting that receiving HMSFHP did not cause change in SBP for the participants who received HMSFHP. Conclusion: Receiving HMSFHP had effect to reduce DBP, and HMSFHP had a positive effect on the control of blood pressure in patients with hypertension.
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Affiliation(s)
- S X Li
- Department of Chronic and Non-communicable Disease Control and Prevention, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
| | - W Ji
- Department of Big Data, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
| | - X Y Wei
- Harris School of Public Policy, The University of Chicago, Chicago, Illinois 60637, USA
| | - J Cui
- Department of Chronic and Non-communicable Disease Control and Prevention, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
| | - Y Y Ying
- Department of Chronic and Non-communicable Disease Control and Prevention, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
| | - J P Chen
- Department of Chronic and Non-communicable Disease Control and Prevention, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
| | - H Li
- Department of Health Promotion, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China
| | - S W Liu
- Tobacco Control Office, Chinese Center for Disease Control and Prevention, Beijing 100050, China
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Hong M, Wang P, Shangguan T, Li GL, Bian RP, He W, Jiang W, Chen JP. [Correction of the pathogenic mutation in the G6PC3 gene by adenine base editing in mutant embryos]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:308-315. [PMID: 37357000 DOI: 10.3760/cma.j.issn.0253-2727.2023.04.008] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
Objective: To determine whether the adenine base editor (ABE7.10) can be used to fix harmful mutations in the human G6PC3 gene. Methods: To investigate the safety of base-edited embryos, off-target analysis by deep sequencing was used to examine the feasibility and editing efficiency of various sgRNA expression vectors. The human HEK293T mutation models and human embryos were also used to test the feasibility and editing efficiency of correction. Results: ①The G6PC3(C295T) mutant cell model was successfully created. ②In the G6PC3(C295T) mutant cell model, three distinct Re-sgRNAs were created and corrected, with base correction efficiency ranging from 8.79% to 19.56% . ③ ABE7.10 could successfully fix mutant bases in the human pathogenic embryo test; however, base editing events had also happened in other locations. ④ With the exception of one noncoding site, which had a high safety rate, deep sequencing analysis revealed that the detection of 32 probable off-target sites was <0.5% . Conclusion: This study proposes a new base correction strategy based on human pathogenic embryos; however, it also produces a certain nontarget site editing, which needs to be further analyzed on the PAM site or editor window.
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Affiliation(s)
- M Hong
- Guizhou University Medical College, Guiyang 550025, China
| | - P Wang
- Department of Hematology, the First Affiliated Hospital of Army Medical University (Southwest Hospital), Chongqing 400038, China
| | - T Shangguan
- Department of Reproductive Medicine, the First Affiliated Hospital of Army Medical University (Southwest Hospital), Chongqing 400038, China
| | - G L Li
- Department of Reproductive Medicine, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China
| | - R P Bian
- Guizhou University Medical College, Guiyang 550025, China
| | - W He
- Department of Reproductive Medicine, the First Affiliated Hospital of Army Medical University (Southwest Hospital), Chongqing 400038, China
| | - W Jiang
- Department of Hematology, the First Affiliated Hospital of Army Medical University (Southwest Hospital), Chongqing 400038, China
| | - J P Chen
- Department of Hematology, the First Affiliated Hospital of Army Medical University (Southwest Hospital), Chongqing 400038, China
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Chen JP, Wang J, Guo JQ, Guo CB. [Research progress in multi-body system dynamics modeling in stomatology]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:374-379. [PMID: 37005786 DOI: 10.3760/cma.j.cn112144-20220525-00273] [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: 04/04/2023]
Abstract
The stomatognathic system is an organic combination of bone, dentition, joints, masticatory muscles and innervation nerves. It is an organ system for the human body to perform mastication, speech, swallowing and other important functions. Due to the complex anatomical structure of stomatognathic system and ethical limitations, it is difficult to directly measure the movement and force by using the biomechanical experimental methods. Multi-body system dynamics is an important tool to study the kinetics and force of a multi-body system, which consists of several objects with relative motion. We can use the method of multi-body system dynamics simulation in engineering to study the movement, soft tissue deformation and force transfer of this complex stomatognathic system. This paper briefly introduces the history and application methods of multi-body system dynamics and the commonly used modeling methods. The application and research progress of multi-body system dynamics modeling methods in the field of stomatology was emphatically summarized, development prospects of current research and difficulties were put forward.
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Affiliation(s)
- J P Chen
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - J Wang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - J Q Guo
- MOE Key Laboratory of Dynamics and Control of Flight Vehicle, School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - C B Guo
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Wei N, Chen JP, Liu LP. [Attention should be paid to futile recanalization after endovascular treatment in acute ischemic stroke]. Zhonghua Yi Xue Za Zhi 2023; 103:939-945. [PMID: 36990710 DOI: 10.3760/cma.j.cn112137-20221227-02704] [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: 03/31/2023]
Abstract
With the accumulation of research evidence and clinical experience, an increasing number of patients benefit from vascular recanalization therapies. Although successful recanalization of the occluded artery has been achieved, neurological deficits persist after endovascular treatment, which defined as"futile reperfusion". Compared with the successful recanalization, successful reperfusion predicts final infarct size and clinical outcome more accurately. At present, the known influencing factors of futile reperfusion include older age, female, high baseline National Institute of Health stroke scale (NIHSS) score, hypertension, diabetes, atrial fibrillation, reperfusion treatment strategy, large infarction core volume, and collateral circulation status. The incidence of futile reperfusion in China is significantly higher than that in western population. However, few studies focused on its mechanism and influencing factors. To date, many clinical studies have attempted to reduce the occurrence of futile recanalization regarding antiplatelet therapy, blood pressure management and treatment process improvement. However, only one effective measure has been achieved in blood pressure management: systolic blood pressure control below 120 mmHg (1 mmHg=0.133 kPa) should be avoided after successful recanalization. Therefore, future studies are warranted to promote the establishment and maintenance of collateral circulation, as well as neuroprotective therapy.
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Affiliation(s)
- N Wei
- Neurointensive Care Unit, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - J P Chen
- Neurointensive Care Unit, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
| | - L P Liu
- Neurointensive Care Unit, Beijing Tiantan Hospital, Capital Medical University, Beijing 100070, China
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Zheng RJ, Chen QL, Ma HM, Liu HD, Chen JP, Liang GS, Chen J, Zhang YY, Li S, Guo B, Wang ML, Du M. [Human chorionic gonadotropin-secreting gonadoblastomas in a girl of 45, X Turner syndrome: a case report and literature review]. Zhonghua Er Ke Za Zhi 2022; 60:1202-1206. [PMID: 36319158 DOI: 10.3760/cma.j.cn112140-20220429-00393] [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: 06/16/2023]
Abstract
Objective: To summarize the experience in diagnosis and treatment of 45, X Turner syndrome (TS) with gonadal Y chromosome mosaicism and bilateral gonadoblastoma (Gb) secreting human chorionic gonadotrophin(HCG). Methods: A female patient aged 5 years and 3 months was admitted to the hospital with a complaint of "enlarged breasts for 27 months, and elevated blood β-HCG for 8 months". The clinical data were summarized, and related literature up to March 2022 with the key words"Turner syndrome" "Gonadoblastoma" "Y chromosome" "human chorionic gonadotropin" "precocious" in PubMed, CNKI and Wanfang databases were reviewed. Results: The girl went to the local hospital for 2-month breast development at age of 3 years, and was found with a heart murmur diagnosed with "pulmonary venous malformation and atrial septal defect (secondary foramen type)". Surgical correction was performed. She experienced the progressive breast development, rapid linear growth and markedly advanced skeletal age, which cannot be explained by partial activation in the hypothalamic-pituitary-gonadal axis determined at the age of 3 years and 7 months in local hospital. Then whole-exome sequencing revealed chromosome number abnormality 45, X, which was confirmed by Karyotyping. At the age of 4 years and 6 months, serum β-HCG was found to be elevated (24.9 U/L) with no lesion found at the local hospital. On physical examination, she was found with breast development, pubic hair development and clitoromegaly with elevated serum testosterone (1.96 μg/L) and β-HCG (32.3 U/L). Sex determining region Y(SRY) gene was negative in peripheral blood sample. Thoracic and abdominal CT, head and pelvic magnetic resonance imaging were normal. Exploratory laparotomy confirmed the presence of a left adnexal tumor and a right fibrous streak gonad. During surgery, simultaneous samples of bilateral gonadal and peripheral venous blood were obtained and serum β-HCG, estradiol and testosteron concentrations was higher to lower from left gonadal venous blood, right gonadal venous blood, to peripheral venous blood. Bilateral gonadectomy was performed. Histopathology revealed bilateral gonadoblastomas. SRY was positive in bilateral gonadal tissues. After surgery, serum E2, testerone and β-HCG returned to normal. So far 4 cases of HCG-secreting gonadoblastoma had been reported worldwide. The phenotypes of the 4 cases were all female, with virilization or amenorrhea, and the preoperative peripheral blood β-HCG concentrations were 74.4, 5.0, 40 456.0, and 42.4 U/L, respectively. Conclusions: There is a high risk of Gb in TS with Y chromosome components. Gb is infrequently presented with breast development, and Gb associated with HCG secretion is rare. Karyotyping should be performed in a phenotypic female with masculinization, and virilization in TS indicates the presence of Y chromosome material with concurrent androgen secreting tumors.
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Affiliation(s)
- R J Zheng
- Department of Pediatrics, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Q L Chen
- Department of Pediatrics, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - H M Ma
- Department of Pediatrics, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - H D Liu
- Department of Pediatric Surgery,the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - J P Chen
- Department of Pediatric Surgery,the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - G S Liang
- Department of Medical Laboratory, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - J Chen
- Department of Pediatrics, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Y Y Zhang
- Department of Pediatrics, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - S Li
- Department of Pediatrics, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - B Guo
- Department of Pediatrics, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - M L Wang
- Department of Pediatrics, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Minlian Du
- Department of Pediatrics, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
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Dong BH, Chen JP. [Portal venous gas caused by bactevemia of clostridium perfringens in Crohn's disease: a case report]. Zhonghua Nei Ke Za Zhi 2022; 61:809-810. [PMID: 35764567 DOI: 10.3760/cma.j.cn112138-20210916-00647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- B H Dong
- Department of Emergency, Dongyang People's Hospital, Dongyang 322100, China
| | - J P Chen
- Department of Emergency, Dongyang People's Hospital, Dongyang 322100, China
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Ruan WC, Li J, Zhang YJ, Zheng SS, Wang D, Yu H, Chen JP, Bao YY, Shao L, Fu LL, Zou Y, Hua J, Li HF. [Investigate developmental coordination disorder of kindergarten children in Zhejiang Province]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:838-842. [PMID: 35785866 DOI: 10.3760/cma.j.cn112150-20210719-00691] [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
In order to investigate developmental coordination disorder (DCD) of kindergarten children in Zhejiang province, 200 ordinary kindergartens were randomly selected by stratified random sampling in 11 prefecture-level cities of Zhejiang Province, and 38 900 children from 1 000 classes in each grade were then randomly selected into the study from June 2019 to December 2019. The Little DCD Questionnaire and a self-designed questionnaire were used to screen the DCD of those children. There were 36 807 valid questionnaires, and 6.50% (2 391/36 807) of them were positive results. The results showed that boy, age ≤5 years, overweight or obesity, left handedness, comorbidity with motor or developmental disorders and premature infants were risk factors of DCD in children. As for parents and families, maternal gestational age<20 years, maternal overweight or obesity before pregnancy, low-middle level education of parents, direct family and low income of family were also associated with DCD in children. Therefore, it is necessary to conduct early prevention and intervention strategies targeting on identified risk factors among relevant population.
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Affiliation(s)
- W C Ruan
- Department of Rehabilitation, the Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - J Li
- Jiaxing Maternity and Child Health Care Hospital, Jiaxing 314050, China
| | - Y J Zhang
- The Second People's Hospital of Haining, Haining 314419, China
| | - S S Zheng
- Wenling Women's and Children's Hospital, Wenling 317599, China
| | - D Wang
- Yiwu Maternity and Children Hospital, Yiwu 322099, China
| | - H Yu
- Shaoxing Maternity and Child Health Care Hospital, Shaoxing 312099, China
| | - J P Chen
- The Women and Children Hospital of Dongyang, Dongyang 322199, China
| | - Y Y Bao
- Kindergarten of Hangzhou Normal University, Hangzhou 310012, China
| | - L Shao
- Jinhua Maternal and Child Health Care Hospital, Jinhua 321099, China
| | - L L Fu
- Pujiang Maternity and Child Health Care Hospital, Pujiang 322299, China
| | - Y Zou
- Zhejiang Center for Disease Control and Prevention, Hangzhou 310057, China
| | - J Hua
- Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai 200040, China
| | - H F Li
- Department of Rehabilitation, the Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
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Chen YJ, Huang WN, Chen HH, Chen HW, Cheng PL, Chen JP, Lin CT, Tang KT, Hung WT, Hsieh TY, Hsiao TH, Chen YM, Chen YH. POS1249 EFFICACY AND SAFETY OF ChAdOx1 nCoV-19/AZD1222 AND mRNA-1273 VACCINES: A COMPARATIVE STUDY IN PATIENTS WITH AUTOIMMUNE RHEUMATIC DISEASES. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.3488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundSeveral studies have demonstrated immunogenicity after COVID-19 vaccination in patients with autoimmune rheumatic diseases (AIRD) [1], but the differences between mRNA-based and vector vaccines and the cellular responses to COVID-19 vaccines according to distinct immunogenicity in AIRD patients are still unclear.ObjectivesTo investigate the differences in efficacy and safety between the vector vaccine ChAdOx1 nCoV-19/AZD1222 (Oxford-AstraZeneca) and mRNA-based vaccine mRNA-1273 (Moderna) in patients with AIRD, and to explore the cell-cell interactions between high and low anti-SARS-CoV-2 IgG levels in patients with rheumatic arthritis (RA) by single-cell RNA sequencing (scRNA-seq).MethodsFrom September 16 to November 15, 2021, we consecutively enrolled 243 participants aged ≥20 years with AIRD who received COVID-19 vaccination, of whom 113 were immunized with AZD1222 and 130 with mRNA-1273. The level of serum IgG antibodies to the SARS-CoV-2 receptor-binding domain on the spike protein S1 subunit was quantified by electrochemiluminescence immunoassay at 4-6 weeks after vaccination. Moreover, peripheral blood mononuclear cells were isolated from two RA patient with high anti-SARS-CoV-2 IgG level and four RA patients with low level for scRNA-seq and cell-cell communication signal was analyzed by CellChat.ResultsThe anti-SARS-CoV-2 IgG seropositivity rate was 78.8% (89/113) for AZD1222 and 83.1% (108/130) for mRNA-1273. The level of anti-SARS-CoV-2 IgG was higher in patients who received mRNA-1273 than in those who received AZD1222 (β: 30.15, 95% CI: 11.67-48.63, p=0.002) (Table 1). Prednisolone-equivalent dose >5 mg/day and methotrexate (MTX) use in AIRD patients, and non-anti-tumor necrosis factor (TNF)-α biologics and Janus kinase (JAK) inhibitor use in RA patients were associated with inferior immunogenicity. ScRNA-seq revealed CD16-monocytes were predominant in RA patients with high anti-SARS-CoV2-IgG antibody level, and enriched pathways related to antigen presentation via major histocompatibility complex class II (MHC class II) were found (Figure 1). HLA-DRA and CD4 interaction was vigorous among all identified MHC-II pathway and was enhanced in high anti-SARS-CoV2-IgG antibody group.Table 1.Multivariate analysis of anti-SARS-CoV-2 IgG level in patients with rheumatic diseases following COVID-19 vaccinesMultivariate analysisβ95% CIp valueMedicationsGlucocorticoidsNot usedReference≤5 mg/day−22.48(−56.33,11.37)0.192>5 mg/day−23.45(−43.54,-3.36)0.022Methotrexate−24.89(−45.70,-4.08)0.019Targeted therapiesTargeted therapies group Not usedReference TNF inhibitor−15.78(−41.33,9.76)0.224 Non-TNF bDMARD−25.27(−55.47,4.93)0.100 JAK inhibitor−17.08(−47.23,13.07)0.265VaccineChAdOx1 nCoV-19/AZD1222ReferencemRNA-127330.15(11.67,48.63)0.002TNF: tumor necrosis factor, bDMARDs: biologic disease-modifying antirheumatic drugs, JAK: Janus kinase.Figure 1.The comprehensive cell atlas of PBMC of RA patients with high and low anti-SARS-CoV2-IgG antibodies. A) UMAP visualization of PBMC cells from RA patients. B) The proportion of cell types between high and low antibody groups. C) Volcano plot of CD16-monocyte showed differential expressed genes. D) Pathway analysis between high and low antibody groups; PRBC: peripheral blood mononuclear cell, RA: rheumatoid arthritis, NK cell: natural killer cell, pDC: plasmacytoid dendritic cell, CLP: common lymphoid progenitor.ConclusionmRNA-1273 and AZD1222 vaccines exhibited differential immunogenicity in patients with AIRD. Enriched pathways related to antigen presentation via MHC class II in CD16-monocytes might be associated with higher anti-SARS-CoV2-IgG level in RA patients and further study is warranted.References[1]Geisen UM, Berner DK, Tran F, et al. Immunogenicity and safety of anti-SARS-CoV-2 mRNA vaccines in patients with chronic inflammatory conditions and immunosuppressive therapy in a monocentric cohort. Ann Rheum Dis. 2021;80:1306-1311.AcknowledgementsThe authors thank the Biostatistics Task Force of Taichung Veterans General Hospital for their assistance with the statistical analysis in this study.Disclosure of InterestsNone declared
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Zhang LY, Su J, He JJ, Wiescher M, deBoer RJ, Kahl D, Chen YJ, Li XY, Wang JG, Zhang L, Cao FQ, Zhang H, Zhang ZC, Jiao TY, Sheng YD, Wang LH, Song LY, Jiang XZ, Li ZM, Li ET, Wang S, Lian G, Li ZH, Tang XD, Zhao HW, Sun LT, Wu Q, Li JQ, Cui BQ, Chen LH, Ma RG, Guo B, Xu SW, Li JY, Qi NC, Sun WL, Guo XY, Zhang P, Chen YH, Zhou Y, Zhou JF, He JR, Shang CS, Li MC, Zhou XH, Zhang YH, Zhang FS, Hu ZG, Xu HS, Chen JP, Liu WP. Direct Measurement of the Astrophysical ^{19}F(p,αγ)^{16}O Reaction in the Deepest Operational Underground Laboratory. Phys Rev Lett 2021; 127:152702. [PMID: 34678013 DOI: 10.1103/physrevlett.127.152702] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/01/2021] [Accepted: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Fluorine is one of the most interesting elements in nuclear astrophysics, where the ^{19}F(p,α)^{16}O reaction is of crucial importance for Galactic ^{19}F abundances and CNO cycle loss in first generation Population III stars. As a day-one campaign at the Jinping Underground Nuclear Astrophysics experimental facility, we report direct measurements of the essential ^{19}F(p,αγ)^{16}O reaction channel. The γ-ray yields were measured over E_{c.m.}=72.4-344 keV, covering the Gamow window; our energy of 72.4 keV is unprecedentedly low, reported here for the first time. The experiment was performed under the extremely low cosmic-ray-induced background environment of the China JinPing Underground Laboratory, one of the deepest underground laboratories in the world. The present low-energy S factors deviate significantly from previous theoretical predictions, and the uncertainties are significantly reduced. The thermonuclear ^{19}F(p,αγ)^{16}O reaction rate has been determined directly at the relevant astrophysical energies.
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Affiliation(s)
- L Y Zhang
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - J Su
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - J J He
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - M Wiescher
- Department of Physics and The Joint Institute for Nuclear Astrophysics, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - R J deBoer
- Department of Physics and The Joint Institute for Nuclear Astrophysics, University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - D Kahl
- Extreme Light Infrastructure-Nuclear Physics, Horia Hulubei National Institute for Research and Development in Physics and Nuclear Engineering (IFIN-HH), Bucharest-Măgurele 077125, Romania
| | - Y J Chen
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - X Y Li
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - J G Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - L Zhang
- China Institute of Atomic Energy, Beijing 102413, China
| | - F Q Cao
- China Institute of Atomic Energy, Beijing 102413, China
| | - H Zhang
- China Institute of Atomic Energy, Beijing 102413, China
| | - Z C Zhang
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - T Y Jiao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y D Sheng
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - L H Wang
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - L Y Song
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - X Z Jiang
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - Z M Li
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - E T Li
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - S Wang
- Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai 264209, China
| | - G Lian
- China Institute of Atomic Energy, Beijing 102413, China
| | - Z H Li
- China Institute of Atomic Energy, Beijing 102413, China
| | - X D Tang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - H W Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - L T Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Q Wu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J Q Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - B Q Cui
- China Institute of Atomic Energy, Beijing 102413, China
| | - L H Chen
- China Institute of Atomic Energy, Beijing 102413, China
| | - R G Ma
- China Institute of Atomic Energy, Beijing 102413, China
| | - B Guo
- China Institute of Atomic Energy, Beijing 102413, China
| | - S W Xu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J Y Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - N C Qi
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - W L Sun
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - X Y Guo
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - P Zhang
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - Y H Chen
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - Y Zhou
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - J F Zhou
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - J R He
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - C S Shang
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - M C Li
- Yalong River Hydropower Development Company, Chengdu 610051, China
| | - X H Zhou
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y H Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - F S Zhang
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - Z G Hu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - H S Xu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J P Chen
- Key Laboratory of Beam Technology and Material Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
| | - W P Liu
- China Institute of Atomic Energy, Beijing 102413, China
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12
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Meng W, Lao L, Zhang ZJ, Lin WL, Zhang YB, Yeung WF, Yu YMB, Ng HYE, Chen JP, Su J, Rong JH, Lam PYF, Lee E. Tumour-shrinking decoction for symptomatic uterine fibroids: a double-blind, randomised, two-dose trial (abridged secondary publication). Hong Kong Med J 2021; 27 Suppl 2:8-10. [PMID: 34075883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023] Open
Affiliation(s)
- W Meng
- LKS Faculty of Medicine, The University of Hong Kong
| | - L Lao
- LKS Faculty of Medicine, The University of Hong Kong
| | - Z J Zhang
- LKS Faculty of Medicine, The University of Hong Kong
| | - W L Lin
- Hong Kong Institute of Integrative Medicine, Faculty of Medicine, The Chinese University of Hong Kong
| | - Y B Zhang
- LKS Faculty of Medicine, The University of Hong Kong
| | - W F Yeung
- School of Nursing, The Hong Kong Polytechnic University
| | - Y M B Yu
- School of Nursing, The Hong Kong Polytechnic University
| | - H Y E Ng
- LKS Faculty of Medicine, The University of Hong Kong
| | - J P Chen
- LKS Faculty of Medicine, The University of Hong Kong
| | - J Su
- LKS Faculty of Medicine, The University of Hong Kong
| | - J H Rong
- LKS Faculty of Medicine, The University of Hong Kong
| | - P Y F Lam
- LKS Faculty of Medicine, The University of Hong Kong
| | - E Lee
- LKS Faculty of Medicine, The University of Hong Kong
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13
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Bhetuwal D, Matter J, Szumila-Vance H, Kabir ML, Dutta D, Ent R, Abrams D, Ahmed Z, Aljawrneh B, Alsalmi S, Ambrose R, Androic D, Armstrong W, Asaturyan A, Assumin-Gyimah K, Ayerbe Gayoso C, Bandari A, Basnet S, Berdnikov V, Bhatt H, Biswas D, Boeglin WU, Bosted P, Brash E, Bukhari MHS, Chen H, Chen JP, Chen M, Christy EM, Covrig S, Craycraft K, Danagoulian S, Day D, Diefenthaler M, Dlamini M, Dunne J, Duran B, Evans R, Fenker H, Fomin N, Fuchey E, Gaskell D, Gautam TN, Gonzalez FA, Hansen JO, Hauenstein F, Hernandez AV, Horn T, Huber GM, Jones MK, Joosten S, Karki A, Keppel C, Khanal A, King PM, Kinney E, Ko HS, Kohl M, Lashley-Colthirst N, Li S, Li WB, Liyanage AH, Mack D, Malace S, Markowitz P, Meekins D, Michaels R, Mkrtchyan A, Mkrtchyan H, Nazeer SJ, Nanda S, Niculescu G, Niculescu I, Nguyen D, Pandey B, Park S, Pooser E, Puckett A, Rehfuss M, Reinhold J, Santiesteban N, Sawatzky B, Smith GR, Sun A, Tadevosyan V, Trotta R, Wood SA, Yero C, Zhang J. Ruling out Color Transparency in Quasielastic ^{12}C(e,e^{'}p) up to Q^{2} of 14.2 (GeV/c)^{2}. Phys Rev Lett 2021; 126:082301. [PMID: 33709760 DOI: 10.1103/physrevlett.126.082301] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/15/2020] [Accepted: 01/14/2021] [Indexed: 06/12/2023]
Abstract
Quasielastic ^{12}C(e,e^{'}p) scattering was measured at spacelike 4-momentum transfer squared Q^{2}=8, 9.4, 11.4, and 14.2 (GeV/c)^{2}, the highest ever achieved to date. Nuclear transparency for this reaction was extracted by comparing the measured yield to that expected from a plane-wave impulse approximation calculation without any final state interactions. The measured transparency was consistent with no Q^{2} dependence, up to proton momenta of 8.5 GeV/c, ruling out the quantum chromodynamics effect of color transparency at the measured Q^{2} scales in exclusive (e,e^{'}p) reactions. These results impose strict constraints on models of color transparency for protons.
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Affiliation(s)
- D Bhetuwal
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - J Matter
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - H Szumila-Vance
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M L Kabir
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - D Dutta
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - R Ent
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D Abrams
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - Z Ahmed
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - B Aljawrneh
- North Carolina A & T State University, Greensboro, North Carolina 27411, USA
| | - S Alsalmi
- Kent State University, Kent, Ohio 44240, USA
| | - R Ambrose
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - D Androic
- University of Zagreb, Zagreb, Croatia
| | - W Armstrong
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - A Asaturyan
- A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
| | - K Assumin-Gyimah
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - C Ayerbe Gayoso
- Mississippi State University, Mississippi State, Mississippi 39762, USA
- The College of William & Mary, Williamsburg, Virginia 23185, USA
| | - A Bandari
- The College of William & Mary, Williamsburg, Virginia 23185, USA
| | - S Basnet
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - V Berdnikov
- Catholic University of America, Washington, DC 20064, USA
| | - H Bhatt
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - D Biswas
- Hampton University, Hampton, Virginia 23669, USA
| | - W U Boeglin
- Florida International University, University Park, Florida 33199, USA
| | - P Bosted
- The College of William & Mary, Williamsburg, Virginia 23185, USA
| | - E Brash
- Christopher Newport University, Newport News, Virginia 23606, USA
| | | | - H Chen
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - J P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Chen
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - E M Christy
- Hampton University, Hampton, Virginia 23669, USA
| | - S Covrig
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Craycraft
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - S Danagoulian
- North Carolina A & T State University, Greensboro, North Carolina 27411, USA
| | - D Day
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - M Diefenthaler
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Dlamini
- Ohio University, Athens, Ohio 45701, USA
| | - J Dunne
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - B Duran
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R Evans
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - H Fenker
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - N Fomin
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - E Fuchey
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T N Gautam
- Hampton University, Hampton, Virginia 23669, USA
| | - F A Gonzalez
- Stony Brook University, Stony Brook, New York 11794, USA
| | - J O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Hauenstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A V Hernandez
- Catholic University of America, Washington, DC 20064, USA
| | - T Horn
- Catholic University of America, Washington, DC 20064, USA
| | - G M Huber
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - M K Jones
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Joosten
- Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - A Karki
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - C Keppel
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Khanal
- Florida International University, University Park, Florida 33199, USA
| | - P M King
- Ohio University, Athens, Ohio 45701, USA
| | - E Kinney
- University of Colorado Boulder, Boulder, Colorado 80309, USA
| | - H S Ko
- Institut de Physique Nucleaire, Orsay, France
| | - M Kohl
- Hampton University, Hampton, Virginia 23669, USA
| | | | - S Li
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - W B Li
- The College of William & Mary, Williamsburg, Virginia 23185, USA
| | - A H Liyanage
- Hampton University, Hampton, Virginia 23669, USA
| | - D Mack
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Malace
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Markowitz
- Florida International University, University Park, Florida 33199, USA
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Mkrtchyan
- A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
| | - H Mkrtchyan
- A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
| | - S J Nazeer
- Hampton University, Hampton, Virginia 23669, USA
| | - S Nanda
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - G Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - I Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - D Nguyen
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - B Pandey
- Hampton University, Hampton, Virginia 23669, USA
| | - S Park
- Stony Brook University, Stony Brook, New York 11794, USA
| | - E Pooser
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Puckett
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - M Rehfuss
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - J Reinhold
- Florida International University, University Park, Florida 33199, USA
| | - N Santiesteban
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - B Sawatzky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - G R Smith
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Sun
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - V Tadevosyan
- A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), Yerevan 0036, Armenia
| | - R Trotta
- Catholic University of America, Washington, DC 20064, USA
| | - S A Wood
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Yero
- Florida International University, University Park, Florida 33199, USA
| | - J Zhang
- Stony Brook University, Stony Brook, New York 11794, USA
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14
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Yero C, Abrams D, Ahmed Z, Ahmidouch A, Aljawrneh B, Alsalmi S, Ambrose R, Armstrong W, Asaturyan A, Assumin-Gyimah K, Ayerbe Gayoso C, Bandari A, Bane J, Basnet S, Berdnikov VV, Bericic J, Bhatt H, Bhetuwal D, Biswas D, Boeglin WU, Bosted P, Brash E, Bukhari MHS, Chen H, Chen JP, Chen M, Christy ME, Covrig S, Craycraft K, Danagoulian S, Day D, Diefenthaler M, Dlamini M, Dunne J, Duran B, Dutta D, Ent R, Evans R, Fenker H, Fomin N, Fuchey E, Gaskell D, Gautam TN, Gonzalez FA, Hansen JO, Hauenstein F, Hernandez AV, Horn T, Huber GM, Jones MK, Joosten S, Kabir ML, Karki A, Keppel CE, Khanal A, King P, Kinney E, Lashley-Colthirst N, Li S, Li WB, Liyanage AH, Mack DJ, Malace SP, Matter J, Meekins D, Michaels R, Mkrtchyan A, Mkrtchyan H, Nazeer SJ, Nanda S, Niculescu G, Niculescu M, Nguyen D, Nuruzzaman N, Pandey B, Park S, Perdrisat CF, Pooser E, Rehfuss M, Reinhold J, Sawatzky B, Smith GR, Sun A, Szumila-Vance H, Tadevosyan V, Wood SA, Zhang J. Probing the Deuteron at Very Large Internal Momenta. Phys Rev Lett 2020; 125:262501. [PMID: 33449750 DOI: 10.1103/physrevlett.125.262501] [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: 08/19/2020] [Revised: 10/27/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
We measure ^{2}H(e,e^{'}p)n cross sections at 4-momentum transfers of Q^{2}=4.5±0.5 (GeV/c)^{2} over a range of neutron recoil momenta p_{r}, reaching up to ∼1.0 GeV/c. We obtain data at fixed neutron recoil angles θ_{nq}=35°, 45°, and 75° with respect to the 3-momentum transfer q[over →]. The new data agree well with previous data, which reached p_{r}∼500 MeV/c. At θ_{nq}=35° and 45°, final state interactions, meson exchange currents, and isobar currents are suppressed and the plane wave impulse approximation provides the dominant cross section contribution. We compare the new data to recent theoretical calculations, where we observe a significant discrepancy for recoil momenta p_{r}>700 MeV/c.
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Affiliation(s)
- C Yero
- Florida International University, University Park, Florida 33199, USA
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D Abrams
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - Z Ahmed
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - A Ahmidouch
- North Carolina Agricultural and Technical State University, Greensboro, North Carolina 27411, USA
| | - B Aljawrneh
- North Carolina Agricultural and Technical State University, Greensboro, North Carolina 27411, USA
| | - S Alsalmi
- Kent State University, Kent, Ohio 44240, USA
| | - R Ambrose
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - W Armstrong
- Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - A Asaturyan
- A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), 2 Alikhanian Brothers Street, 0036, Yerevan, Armenia
| | - K Assumin-Gyimah
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - C Ayerbe Gayoso
- College of William & Mary, Williamsburg, Virginia 23185, USA
| | - A Bandari
- College of William & Mary, Williamsburg, Virginia 23185, USA
| | - J Bane
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - S Basnet
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - V V Berdnikov
- Catholic University of America, Washington, D.C. 20064, USA
| | - J Bericic
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Bhatt
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - D Bhetuwal
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - D Biswas
- Hampton University, Hampton, Virginia 23669, USA
| | - W U Boeglin
- Florida International University, University Park, Florida 33199, USA
| | - P Bosted
- College of William & Mary, Williamsburg, Virginia 23185, USA
| | - E Brash
- Christopher Newport University, Newport News, Virginia 23606, USA
| | | | - H Chen
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - J P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Chen
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - M E Christy
- Hampton University, Hampton, Virginia 23669, USA
| | - S Covrig
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K Craycraft
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - S Danagoulian
- North Carolina Agricultural and Technical State University, Greensboro, North Carolina 27411, USA
| | - D Day
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - M Diefenthaler
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Dlamini
- Ohio University, Athens, Ohio 45701, USA
| | - J Dunne
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - B Duran
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - D Dutta
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - R Ent
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Evans
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - H Fenker
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - N Fomin
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - E Fuchey
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - D Gaskell
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T N Gautam
- Hampton University, Hampton, Virginia 23669, USA
| | - F A Gonzalez
- Stony Brook University, Stony Brook, New York 11794, USA
| | - J O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - F Hauenstein
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - A V Hernandez
- Catholic University of America, Washington, D.C. 20064, USA
| | - T Horn
- Catholic University of America, Washington, D.C. 20064, USA
| | - G M Huber
- University of Regina, Regina, Saskatchewan S4S 0A2, Canada
| | - M K Jones
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Joosten
- Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - M L Kabir
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - A Karki
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - C E Keppel
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Khanal
- Florida International University, University Park, Florida 33199, USA
| | - P King
- Ohio University, Athens, Ohio 45701, USA
| | - E Kinney
- University of Colorado Boulder, Boulder, Colorado 80309, USA
| | | | - S Li
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - W B Li
- College of William & Mary, Williamsburg, Virginia 23185, USA
| | - A H Liyanage
- Hampton University, Hampton, Virginia 23669, USA
| | - D J Mack
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S P Malace
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Matter
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - D Meekins
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Mkrtchyan
- A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), 2 Alikhanian Brothers Street, 0036, Yerevan, Armenia
| | - H Mkrtchyan
- A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), 2 Alikhanian Brothers Street, 0036, Yerevan, Armenia
| | - S J Nazeer
- Hampton University, Hampton, Virginia 23669, USA
| | - S Nanda
- Mississippi State University, Mississippi State, Mississippi 39762, USA
| | - G Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - M Niculescu
- James Madison University, Harrisonburg, Virginia 22807, USA
| | - D Nguyen
- University of Virginia, Charlottesville, Virginia 22903, USA
| | - N Nuruzzaman
- Rutgers University, New Brunswick, New Jersey 08854, USA
| | - B Pandey
- Hampton University, Hampton, Virginia 23669, USA
| | - S Park
- Stony Brook University, Stony Brook, New York 11794, USA
| | - C F Perdrisat
- College of William & Mary, Williamsburg, Virginia 23185, USA
| | - E Pooser
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Rehfuss
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - J Reinhold
- Florida International University, University Park, Florida 33199, USA
| | - B Sawatzky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - G R Smith
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Sun
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - H Szumila-Vance
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - V Tadevosyan
- A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute), 2 Alikhanian Brothers Street, 0036, Yerevan, Armenia
| | - S A Wood
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Zhang
- Stony Brook University, Stony Brook, New York 11794, USA
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Chen JP, Han Y, Miao H, Ou ZJ, Mao CJ, Liu CF. [Effects of sleep quality and mood of patients with Parkinson's disease on their caregivers]. Zhonghua Yi Xue Za Zhi 2020; 100:3414-3418. [PMID: 33238671 DOI: 10.3760/cma.j.cn112137-20200225-00444] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objectve: To evaluate the relationship of Parkinson's disease(PD) patients' sleep quality and depression with burden, quality of life, and depression of their caregivers. Methods: A total of 120 PD patients (68 males and 52 females) and their caregivers (48 males and 72 females) from Changshu Hospital Affiliated to Nanjing University of Chinese Medicine between January 2017 and June 2019 were recruited. Patients' sleep quality, depression and quality of life was evaluated. Burden, quality of life, quality of sleep, and depression of caregivers were assessed by the Caregivers Burden Questionnaire (CBI), Health Survey Brief (SF-36), Pittsburgh Sleep Quality Index (PQS1) and Hamilton Depression Scale (HAMD), meanwhile, the correlation between relevant factors was analyzed. Results: The CBI of caregivers was positively correlated with the unified Parkinson's disease rating scale (UPDRS)-Ⅲ scores of PD patients (r=0.436, P<0.05). The CBI, SF-36GH, SF-36MH, HAMD and PSQI scores of caregivers were positively correlated with Parkinson's disease sleep scale (PDSS) scores of PD patients (r=0.546, 0.762, 0.528, 0.562 and 0.522, respectively, all P<0.01). The caregiver's CBI score was positively correlated with PD patients' Epworth sleepiness score (ESS) score (r=0.442, P<0.05), and caregiver's CBI, SF-36GH, SF-36MH, HAMD, PSQI scores were positively correlated with PD patients' HAMD scores (r=0.765, 0.813, 0.635, 0.884 and 0.601, respectively, all P<0.01). The caregiver's CBI score was positively correlated with the PDQ-39 score of PD patients (r=0.834, 0.452, 0.463, 0.421 and 0.387, respectively, all P<0.05). Multiple regression analysis indicated that the caregiver's CBI score was significantly correlated with the patient's PDQ-39, PDSS and HAMD scores (r=0.512, 0.645 and 0.635, respectively, all P<0.01), and the caregiver's SF-36GH score was significantly correlated with the patient's PDQ-39, PDSS and HAMD scores (r=0.452, 0.682 and 0.506, respectively, all P<0.01). The caregiver's SF-36MH score was significantly correlated with the patient's PDQ-39, PDSS and HAMD scores (r=0.426, 0.608 and 0.598, respectively, all P<0.01). There was significant correlations between the caregiver's HAMD score and the patient's PDSS and HAMD scores (r=0.568 and 0.496, both P<0.01), and the PSQI score of the caregiver was significantly correlated with the PDSS and HAMD scores of the patient (r=0.532 and 0.461, both P<0.01). Conclusions: This current study underscores the presence of a significant relationship of patient's sleep quality with caregiver's burden, quality of life, depression and sleep quality. Specifically, sleep quality and depression of the patients are independent predictors for burden, quality of life and sleep quality of the caregivers.
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Affiliation(s)
- J P Chen
- Department of Neurology, Changshu Hospital Affiliated to Nanjing University of Chinese Medicine, Changshu 215500, China
| | - Y Han
- Department of Neurology, Changshu Hospital Affiliated to Nanjing University of Chinese Medicine, Changshu 215500, China
| | - H Miao
- Department of Neurology, Changshu Hospital Affiliated to Nanjing University of Chinese Medicine, Changshu 215500, China
| | - Z J Ou
- Department of Neurology, Changshu Hospital Affiliated to Nanjing University of Chinese Medicine, Changshu 215500, China
| | - C J Mao
- Department of Neurology, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - C F Liu
- Department of Neurology, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
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Abstract
The aim of the study was to explore the effect of lipoxin A4 (LXA4) on lung injury in sepsis rats through the p38/mitogen-activated protein kinase (MAPK) signaling pathway. Sprague-Dawley rats were used for the study. The rat model of sepsis-induced acute lung injury was established via cecal ligation (Sepsis group, n=20). LXA4 (0.1 mg/kg) was injected at 6 h after modeling (Treatment group, n=20), and a The Control group (n=20) was also set up. The 7-day survival rate was 100% in The Control group, and LXA4 raised the survival rate of rats in the Sepsis group from 40% to 60% (P<0.01). Alveolar fluid clearance (AFC) significantly declined and the wet/dry weight (W/D) ratio of lung tissues rose remarkably in the Sepsis group compared with those in the Control group, while LXA4 restored AFC and reduced the W/D ratio of lung tissues (P<0.05), suggesting that LXA4 treatment reduces lung fluids and partially enhances AFC, thus lowering the W/D ratio of lung. The total cell count, polymorphonuclear neutrophils (PMN) percentage and concentration of tumor necrosis factor-α (TNF-α) and interleukin (IL)-6 in bronchoalveolar lavage fluid (BALF) were obviously increased in the Sepsis group compared with those in the Control group, while they were markedly decreased in the Treatment group (P<0.05). The activity of myeloperoxidase (MPO) in lung tissue homogenate was evidently higher in the Sepsis group than that in The Control group, while it was notably lower in the Treatment group than that in the Sepsis group after LXA4 treatment (P<0.05). Moreover, it was observed microscopically that the morphology of lung tissues was intact in the Control group. Finally, the results of Western blotting manifested that the p-p38/ MAPK protein expression was remarkably increased in the Sepsis group, indicating the activation of the p38/MAPK pathway, while it was remarkably decreased in the Treatment group, indicating the inhibited activity of the pathway (P<0.05). LXA4 has an anti-inflammatory effect on sepsis rats with lung injury, and such effect is related to the p38/MAPK signaling pathway.
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Affiliation(s)
- X H Hu
- Department of ICU, Shanghai Xuhui District Central Hospital, Shanghai, China
| | - H L Situ
- Department of Galactophore, The Second Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, Guangdong Province, China
| | - J P Chen
- Health Care Center, Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - R H Yu
- Department of Respiratory Medicine, Shanghai Xuhui District Central Hospital, Shanghai, China
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Lu B, Liu RJ, Meng B, Yuan H, Zhai XJ, Li XY, Qin JL, Zheng JW, Wu GR, Chen JP. [Effect of fragmented sleep on postoperative cognitive function and central neuroinflammation]. Zhonghua Yi Xue Za Zhi 2020; 100:1341-1344. [PMID: 32375444 DOI: 10.3760/cma.j.cn112137-20191215-02734] [Citation(s) in RCA: 1] [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 effect of sleep fragmentation on perioperative neurocognitive disorders (PND) and central neuroinflammation by simulating sleep patterns of postoperative patients with sleep fragmentation in aged mice. Methods: Thirty-two elderly ICR mice were randomly divided into four groups (n=8): normal group (C), surgery group (S), fragmented sleep group (F), and surgery+fragmented sleep group (D). Fragmented sleep was conducted after internal fixation of tibia fractures, cognitive function was evaluated by novel object recognition (NOR) and fear conditioning (FC) test, and changes in expression of inflammatory cytokines in hippocampus were detected by ELISA. Results: NOR test: the recognition index (RI) of mice in group C, group S, group F and group D was 0.69±0.07, 0.48±0.07, 0.54±0.10 and 0.50±0.12, respectively. The RI of mice in group S, group F and group D was significantly lower than that in group C (t=4.885, 3.521 and 4.433, all P<0.01). There was no significant difference in RI between group S and group D (t=0.967 1, P>0.05). Contextual FC test: the freezing time of mice in group C, group S, group F and group D was(21.34±6.48), (13.83±4.26), (11.50±6.25) and (6.17±4.77) s, respectively. The freezing time of mice in group S, group F and group D was significantly lower than that in group C (t=2.722, 3.566, 5.496, P<0.05 or P<0.01). The freezing time of mice in group D was significantly lower than that in group S (t=2.774, P<0.05). Cue FC test: the freezing time of mice in group C, group S, group F and group D was (74.36±17.09), (43.91±9.71), (46.34±13.43) and (24.90±14.21) s, respectively. The freezing time of mice in group S, group F and group D was significantly lower than that in group C (t=4.393, 4.043 and 7.136, all P<0.01). The freezing time of mice in group D was significantly lower than that in group S (t=2.743, P<0.05). The levels of TNF-α, IL-6 and IL-1β in hippocampus of mice in group S, F and D were significantly higher than those in group C, while the levels of TNF-α and IL-6 in hippocampus of mice in group D were significantly higher than those in group S, with statistically significant differences (P<0.05 or P<0.01). Conclusion: Postoperative fragmented sleep aggravates postoperative cognitive impairment and increases the hippocampal neuroinflammation in aged mice.
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Affiliation(s)
- B Lu
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - R J Liu
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - B Meng
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - H Yuan
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - X J Zhai
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - X Y Li
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - J L Qin
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - J W Zheng
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - G R Wu
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
| | - J P Chen
- Department of Anesthesiology, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
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Zhang WH, Yang K, Chen XZ, Liu K, Chen XL, Zhao LY, Zhang B, Chen ZX, Chen JP, Zhou ZG, Hu JK. [Effect of standardized surgical treatment and multidisciplinary treatment strategy on the prognosis of gastric cancer patients: report of a single-center cohort study]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:396-404. [PMID: 32306609 DOI: 10.3760/cma.j.cn.441530-20200224-00086] [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: 02/05/2023]
Abstract
Objective: To explore the effect of standardized surgical treatment and multidisciplinary treatment strategy on the treatment outcomes of gastric cancer patients. Methods: A single-center cohort study was carried out. Clinicopathological and long-term follow up data of primary gastric cancer patients were retrieved from the database of Surgical Gastric Cancer Patient Registry (SGCPR) in West China Hospital of Sichuan University. Finally, 4516 gastric cancer patients were included and were divided into three groups according to time periods (period 1 group: exploration stage of standardized surgical treatment, 2000 to 2006, 967 cases; period 2 group: application stage of standardized surgical treatment, 2007 to 2012, 1962 cases; period 3 group: optimization stage of standardized surgical treatment and application stage of multidisciplinary treatment strategy, 2013 to 2016, 1587 cases). Differences in clinical data, pathologic features, and prognosis were compared among 3 period groups. Follow-up information was updated to January 1, 2020. The overall follow-up rate was 88.9% (4016/4516) and median follow-up duration was 51.58 months. Survival curve was drawn by Kaplan-Meire method and compared with log-rank test. Univariate and multivariate analyses were performed by Cox proportional hazards model. Results: There were significant differences among period 1, period 2 and period 3 groups in the rates of D2/D2+ lymphadenectomy [14.4%(139/967) vs. 47.2%(927/1962) vs. 75.4%(1197/1587), χ(2)=907.210, P<0.001], in the ratio of proximal gastrectomy [19.8%(191/967) vs. 16.6%(325/1962) vs. 8.2%(130/1587), χ(2)=100.020, P<0.001], and in the median intraoperative blood loss (300 ml vs. 100 ml vs. 100 ml, H=1126.500, P<0.001). Besides, the increasing trend and significant difference were also observed in the median number of examined lymph nodes among period 1, period 2 and period 3 groups (14 vs. 26 vs. 30, H=987.100, P<0.001). Survival analysis showed that the 5-year overall survival rate was 55.3% in period 1, 55.2% in period 2 and 62.8% in period 3, and significant difference existed between period 3 and period 1 (P=0.004). The Cox proportional hazards model analysis showed that treatment period (period 3, HR=0.820, 95%CI: 0.708 to 0.950, P=0.008), postoperative chemotherapy (HR=0.696, 95%CI: 0.631 to 0.768, P<0.001) and mid-low gastric cancer (HR=0.884, 95%CI: 0.804 to 0.973, P=0.011) were good prognostic factors. Whereas old age (≥65 years, HR=1.189, 95%CI: 1.084 to 1.303, P<0.001), palliative resection (R1/R2, HR=1.538,95%CI: 1.333 to 1.776, P<0.001), large tumor size (≥5 cm, HR=1.377, 95%CI: 1.239 to 1.529, P<0.001), macroscopic type III to IV (HR=1.165, 95%CI: 1.063 to 1.277, P<0.001) and TNM stage II to IV(II/I:HR=1.801,95%CI:1.500~2.162,P<0.001;III/I:HR=3.588, 95%CI: 3.028~4.251, P<0.001; IV/I: HR=6.114, 95%CI: 4.973~7.516, P<0.001) were independent prognostic risk factors. Conclusion: Through the implementation of standardized surgical treatment technology and multidisciplinary treatment model, the quality of surgery treatment and overall survival increase, and prognosis of gastric cancer patients has been improved.
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Affiliation(s)
- W H Zhang
- Department of Gastrointestinal Surgery, Laboratory of Gastric Cancer, West China Hospital, Chengdu 610041, China
| | - K Yang
- Department of Gastrointestinal Surgery, Laboratory of Gastric Cancer, West China Hospital, Chengdu 610041, China
| | - X Z Chen
- Department of Gastrointestinal Surgery, Laboratory of Gastric Cancer, West China Hospital, Chengdu 610041, China
| | - K Liu
- Department of Gastrointestinal Surgery, Laboratory of Gastric Cancer, West China Hospital, Chengdu 610041, China
| | - X L Chen
- Department of Gastrointestinal Surgery, Laboratory of Gastric Cancer, West China Hospital, Chengdu 610041, China
| | - L Y Zhao
- Department of Gastrointestinal Surgery, Laboratory of Gastric Cancer, West China Hospital, Chengdu 610041, China
| | - B Zhang
- Department of Gastrointestinal Surgery, Laboratory of Gastric Cancer, West China Hospital, Chengdu 610041, China
| | - Z X Chen
- Department of Gastrointestinal Surgery, Laboratory of Gastric Cancer, West China Hospital, Chengdu 610041, China
| | - J P Chen
- Department of Gastrointestinal Surgery, Laboratory of Gastric Cancer, West China Hospital, Chengdu 610041, China
| | - Z G Zhou
- Department of Gastrointestinal Surgery, Laboratory of Digestive Surgery, West China Hospital, Chengdu 610041, China
| | - J K Hu
- Department of Gastrointestinal Surgery, Laboratory of Gastric Cancer, West China Hospital, Chengdu 610041, China
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Ou ZJ, Huang ZC, Chen JP, Xu JP, Mao XY, You SJ, Liu CF, Cao YJ, Xiao GD. [Clinical analysis of carotid artery stenting with severe stenosis and extracranial distortion under proximal protection technique]. Zhonghua Yi Xue Za Zhi 2019; 99:3568-3573. [PMID: 31826573 DOI: 10.3760/cma.j.issn.0376-2491.2019.45.008] [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 feasibility, efficacy and safety of endovascular reconstruction of the carotid artery with severe stenosis and extracranial distortion under proximal protection. Methods: A retrospective analysis of 21 patients with severe carotid stenosis and extracranial distortion who were admitted to the Second Affiliated Hospital of Soochow University between January 2011 and August 2017, of which 16 patients were symptomatic stenosis with acute ischemic stroke. All the patients were treated with carotid artery stenting under (CAS) proximal protection technique, and assessed with the National Institutes of Health Stroke Scale (NIHSS) before the treatment and hospital discharge. The clinical outcome and vascular morphology were followed-up regularly after the treatment. Results: Twenty-one patients were successfully completed the CAS procedure under the proximal protection technique, the average blocking time was 241.0 (232.5-261.0) seconds. Nine patients received 1block attempt, 6 patients received 2 block attempts, and the other 6 patients received 3 block attempts. Three patients experienced transient ischemic attack (TIA) during the procedure, the maximum duration of TIA was 10 minutes. In 16 patients with symptomatic stenosis, there were no significant differences in NIHSS score before CAS procedure and hospital discharge (P>0.05). The residual stenosis rate of the carotid artery after stenting was(13±6)%, compared with preoperative (87±16)%, which appeared a significant difference (t=19.948, P<0.05). All the patients had no adverse events such as myocardial infarction, recurrent ischemic stroke and death in the follow-up period. Restenosis was assessed in 6 patients by DSA or CTA and no restenosis was found. Conclusion: Endovascular reconstruction of the carotid artery with severe stenosis and extracranial distortion under proximal protection technique has been proven as a safe and effective therapy.
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Affiliation(s)
- Z J Ou
- Department of Neurology, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China (Ou Zhijie is working in the Department of Neurology, Changshu TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Changshu 215500, China)
| | | | - J P Chen
- Department of Neurology, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China (Chen Juping is working in the Department of Neurology, Changshu TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Changshu 215500, China)
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Meng B, Zhai XJ, Qin JL, Li XY, Lu B, Zheng JW, Chen JP. [Modified memory sub-test of Syndrom Kurz test in middle-aged and elderly Chinese]. Zhonghua Yi Xue Za Zhi 2019; 99:2047-2051. [PMID: 31315375 DOI: 10.3760/cma.j.issn.0376-2491.2019.26.009] [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 applicability of the modified memory sub-test of syndrom kurz test (SKT-M) in middle-aged and elderly Chinese. Methods: Between March 1, 2017, and October 31, 2017, at HwaMei Hospital, 132 patients receiving elective great saphenous vein high ligation and stripping operation and 96 their accompanying dependents, 55-75 years old, were randomly divided into the SKT-M group (n=121) and auditory verbal learning test -huashan version (AVLT-H) group (n=107) using random numeral method. The two groups underwent two corresponding neuropsychological tests respectively on the day before surgery and the second day after surgery. Results: There was no significant difference in the baseline characteristics and all the neuropsychological indices at the two time points between patients and dependents (P>0.05). As a consequence, the data of the patients and dependents were integrated to compare the applicability of SKT-M and AVLT-H. The "low-score" ratio of SKT-M immediate recall (2.4%) was lower than that of AVLT-H test (12.1%) (χ(2)=8.138, P<0.01). Besides, the "low-score" ratio of SKT-M delayed recall (5.7%) was also lower than that of AVLT-H test (20.5%) (χ(2)=11.167, P<0.01). The influence factors of SKT-M were less than that of AVLT-H test. However, the learning effect of SKT-M immediate recall was more significant, for its first testing sore (23.1±5.4) was significantly higher than the second one (21.9±5.1) (t=-3.971, P<0.001). Conclusion: The SKT-M has better applicability to 55-75 years old Chinese than AVLT-H test, but its learning effect should be noted.
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Affiliation(s)
- B Meng
- Department of Anesthesiology, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, China
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Wang J, Chen JP, Wang Y, Xu XL, Guo CB. [Application of digital mandibular movement record and masticatory muscle electromyography in the evaluation of stomatognathic function in patients with mandibular tumor]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:571-578. [PMID: 31209433 DOI: 10.19723/j.issn.1671-167x.2019.03.029] [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: 11/20/2022]
Abstract
OBJECTIVE To study the clinical characteristics of mandibular movement and masticatory muscle function in preoperative and postoperative patients with unilateral mandibular tumors in the region of mandibular body and ramus by combining digital mandibular movement records with electromyography, and to preliminarily explore the relationship and mechanism between movement and masticatory muscle function. METHODS Six preoperative patients with tumor in unilateral body and ramus of mandible were included, and three postoperative patients with unilateral segmental resection and reconstruction of mandibular bone were included. The mandibular movement recording system and surface electromyography system were used to collect the movement trajectory of the patients' mandibular marginal movement and chewing movement, and the surface electromyography of bilateral masseter and temporalis was recorded concurrently. The surface electromyography of bilateral masseter and temporalis was collected when the patients were at relaxation and at maximal voluntary clenching (MVC). The motion trajectory was observed on the digital virtual model, and the motion amplitude and direction of mandibular marginal movements were analyzed. The characteristics of masticatory electromyogram (EMG) activity in affected and unaffected sides at relaxation, MVC and bilateral mastication were analyzed, and the asymmetry indexes and activity indexes were calculated. RESULTS The preoperative mean maximum opening of the patients was (35.20±6.87) mm. Three patients had mild mouth opening limitation, and all the patients' mouth opening trajectory was skewed to the affected side. During lateral movements, the mean range of motion of the affected side [(10.34±1.27) mm] and that of the healthy side [(6.94±2.41) mm] were significantly different. The maximum opening of the postoperative patients was (30.65±17.32) mm, and the mandibular marginal movement characteristics were consistent with those of the patients before surgery. During MVC in the preoperative patients, the median EMG activities of the masseter muscle [44.20 (5.70, 197.90) μV] and the temporalis muscle [42.15 (22.90, 155.00) μV] on the affected side were slightly lower than those of the masseter [45.60 (7.50, 235.40) μV] and the temporalis muscle [63.30 (44.10, 126.70) μV] on the healthy side. In the postoperative patients, individualized changes occurred. Some patients suffered from weakened electromyographic activity on the affected side, while some other ones showed hyperelectromyographic activity on the affected side. CONCLUSION Both benign and malignant tumors as well as their surgery can cause abnormal mandibular movements and change of electromyographic activity of bilateral masseter and temporalis muscles.
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Affiliation(s)
- J Wang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - J P Chen
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y Wang
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - X L Xu
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - C B Guo
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Yang SN, Pu X, Xiang SL, Chen JP, Pei L. [Brain derived neurotrophic factor enhances the role of mesenchymal stem cells in inhibiting follicular helper T cells]. Zhonghua Xue Ye Xue Za Zhi 2019; 39:37-40. [PMID: 29551031 PMCID: PMC7343120 DOI: 10.3760/cma.j.issn.0253-2727.2018.01.008] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
目的 探讨脑源性神经营养因子(BDNF)增强间充质干细胞(MSC)抑制滤泡辅助性T细胞(Tfh细胞)的作用及机制。 方法 ELISA法检测MSC培养上清中吲哚胺2,3-二加氧酶(IDO)、IL-10、TGF-β和IL-21的含量;采集健康志愿者的外周血标本,采用人淋巴细胞分离液分离外周血中的淋巴细胞;采用Transwell小室进行MSC和淋巴细胞共培养,流式细胞术检测CD4+CXCR5+ Tfh细胞及其亚群的比例。 结果 ①BDNF组(BDNF刺激的MSC)培养上清IL-10、TGF-β、IDO浓度均高于对照组(加入等体积磷酸盐缓冲液)[IL-10:(42.1±4.4)ng/ml对(19.3±2.1)ng/ml,t=4.761,P=0.009;TGF-β:(13.9±1.7)ng/ml对(5.3±0.6)ng/ml,t=5.129,P=0.008;IDO:(441.3±56.9)ng/ml对(226.7±37.6)ng/ml,t=3.130,P=0.035];②BDNF组(淋巴细胞与BDNF刺激的MSC共培养)与MSC组(淋巴细胞与MSC共培养)比较:CD4+CXCR5+Tfh细胞比例降低[(3.37±0.21)%对(6.51±0.27)%,t=9.353,P<0.001],CD4+ CXCR5+ CXCR3+ CCR6−Tfh1细胞比例升高[(41.14±2.04)%对(26.72±2.57)%,t=4.383,P=0.012],CD4+CXCR5+CXCR3−CCR6−Tfh2细胞和CD4+CXCR5+CXCR3−CCR6+Tfh17细胞比例降低[Tfh2:(30.16±5.38)%对(43.26±4.11)%,t=4.426,P=0.012;Tfh17:(15.61±1.52)%对(22.32±0.72)%,t=4.202,P=0.014],CD4+CXCR5+Foxp3+ Tfr细胞比例升高[(4.95±0.22)%对(2.32±0.16)%,t=10.241,P<0.001],淋巴细胞培养上清中IL-21浓度降低[(0.28±0.03)ng/ml对(0.85±0.08)ng/ml,t=6.675,P=0.003]。 结论 BDNF能够增强MSC抑制Tfh细胞的作用,机制是抑制淋巴细胞中Tfh细胞比例升高及其向Tfh2和Tfh17亚群的分化。
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Affiliation(s)
- S N Yang
- Department of Hematology, Southwest Hospital, Army Medical University, Chongqing 400038, China
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Fu DX, Lu B, Chen JP. [Effect of positive end-expiratory pressure on the cross-sectional area of the internal jugular vein and anatomic relationship between the internal jugular vein and the carotid artery in general anaesthesia of laryngeal mask airway]. Zhonghua Yi Xue Za Zhi 2018; 98:2078-2082. [PMID: 30032504 DOI: 10.3760/cma.j.issn.0376-2491.2018.26.004] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: To investigate the effect of positive end-expiratory pressure(PEEP) on the cross-sectional area (CSA) of the internal jugular vein (IJV) and anatomic relationship between the IJV and the common carotid artery (CCA) in general anaesthesia of laryngeal mask airway(LMA). Methods: Sixty American Society of Anesthesiologists (ASA) Ⅰ or Ⅱ grade patients undergoing elective operation received general anaesthesia using LMA from May to November 2017, aged 20-65, were included in this study and randomly divided into 4 groups: group P0 (PEEP: 0 cmH(2)O), group P5 (PEEP: 5 cmH(2)O), group P10 (PEEP: 10 cmH(2)O), group P15 (PEEP: 15 cmH(2)O). Following the induction of anesthesia, LMA was inserted, and mechanical ventilation was started while the right cervical vessels was imaged by ultrasonography after applying 4 different PEEPs in random order. Measurements were made after 1 min in each PEEP. The CSA, transverse diameter (TD), anteroposterior diameters (AD) of the IJV and the diameter, overlap distance and overlap index of CCA was measured. The arterial blood pressure, heart rate, and vasoactive drugs used were also recorded. Results: The CSA of group P0, P10 and P15 was (1.36±0.55), (1.80±0.54), (2.02±0.58) cm(2). The TD was (1.31±0.33), (1.61±0.49), (1.74±0.53) cm. The AD was (1.12±0.20), (1.33±0.30), (1.46±0.32) cm. Compared to group P0, the CSA, TD and AD of IJV in group P10 and P15 were significantly increased (P0/P10: t=7.81, 3.81, 4.30, all P<0.01; P0/P15: t=11.68, 5.40, 6.96, all P<0.01). There was no significant difference in the AD and TD of IJV between group P10 and P15 (all P>0.05), while the CSA of group P15 was bigger than that of group P10 (t=2.17, P<0.05). The overlap distance of group P0, P10 and P15 was (0.51±0.12), (0.62±0.16), (0.66±0.15) cm. The overlap index was (76.80±20.03)%, (91.10±26.13)%, (96.21±25.36)%. Compared to group P0, the overlap distance and overlap index in group P10 and P15 were significantly increased (P0/P10: t=4.49, 3.41, both P<0.01; P0/P15: t=5.91, 4.63, both P<0.01). There was no significant changes in the overlap distance and overlap index between group P10 and P15 (all P>0.05). The MAP of group P15 was lower than that of group P10 [(73.35±9.73 )vs (67.58±12.58) mmHg, t=2.745, P<0.05]. No patients were given atropine or norepinephrine. Conclusions: The application of PEEP effectively increases the CSA of IJV in general anaesthesia of LMA. At the same time, it also lead to higher overlap index between the IJV and CCA.Ten cmH(2)O PEEP provides the best balance between the increase of CSA and the stability of haemodynamics.
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Affiliation(s)
- D X Fu
- Department of Anesthesiology, Ningbo NO.2 Hospital, Ningbo 315010, China
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Zhang HF, Ye HW, Chen JP, Wu GR. [Effects of lappaconitine on intraoperative administration of remifentanil induced postoperative hyperalgesia in general anaesthesia patients]. Zhonghua Yi Xue Za Zhi 2018; 97:3013-3016. [PMID: 29061010 DOI: 10.3760/cma.j.issn.0376-2491.2017.38.014] [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 explore the effects of lappaconitine on intraoperative administration of remifentanil induced postoperative hyperalgesia in general anaesthesia patients. Methods: One hundred and twenty patients from March to October 2016 undergoing elective thyroid operation under general anaesthesia at Ningbo NO.2 hospital, American Society of Anesthesiologists(ASA) Ⅰ or Ⅱ grade, aged 20-60, were enrolled in this study and randomly assigned to 3 groups (n=40). Remifentanil was intraoperatively infused at 0.1 μg·kg(-1)·min(-1) (Group S) or 0.3 μg·kg(-1)·min(-1) (Groups L and G), and patients in group G received lappaconitine 8 mg 30 minutes before the ending of surgery. Mechanical pain thresholds, visual analogue scale (VAS) and additional analgesics were recorded at 2, 6 and 24 hours after the operation. Results: There was no significant difference among the VAS and additional analgesics in three groups at 2, 6 and 24 h after operation (all P>0.05). There was no significant difference among the mechanical pain thresholds in three groups before and 2 h after operation (all P>0.05). The mechanical pain thresholds of group S, L and G was (45.7±15.6), (35.8±15.0), (47.6±16.4)g at 6 h and (50.7±17.0), (33.7±14.0), (49.7±13.9 )g at 24 h after operation. There was significant difference among the mechanical pain thresholds in group S, L and G at 6 h and 24 h after operation (F=6.586, 16.089, all P<0.01). Compared to group S, the mechanical pain thresholds significantly decreased in group L at 6 h and 24 h after operation (q=2.837, 5.045, all P<0.01). While there was a significantly increase in pain thresholds at 6 h and 24 h postoperatively in group G, as compared with the group L (q=3.384, 4.770, all P<0.01). Conclusion: Lappaconitine significantly alleviated intraoperative administration of remifentanil induced postoperative hyperalgesia in general anaesthesia patients.
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Affiliation(s)
- H F Zhang
- Department of Anesthesiology, Ningbo NO.2 Hospital, Ningbo 315010, China
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Li Y, Li YH, Zhou X, Wu B, Chen JP, Wang ZK, Wang X, Shi HJ, Li RS. DNA hydroxymethylation rate in the AChE and HoxC4 promoter associated with human sperm quality. Andrologia 2018; 50:e12963. [PMID: 29430663 DOI: 10.1111/and.12963] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/03/2018] [Indexed: 12/23/2022] Open
Abstract
The relationship of altered DNA 5'-hydroxymethylation in human spermatozoa with seminal parameters remains unclear. The aim of the study was to investigate the association between the 5'-hydroxymethylcytosine (5hmC) rate in the promoters of acetylcholinesterase (AChE) and homeobox C4 (HoxC4) genes and human sperm concentration/motility. The study population consisted of three groups: asthenozoospermia (AZ), oligoasthenozoospermia (OAZ) and normozoospermia (NZ). The 5hmC rate in the promoter was measured by CCGG loci-dependent MspI/HpaII restriction mapping of glycosylation-modified sperm DNA combined with a hydroxymethylation-specific real-time polymerase chain reaction assay. The 5hmC rate in the AChE promoter in group AZ and OAZ was higher than that in group NZ (p < .05). A weak inverse correlation between 5hmC rate of AChE and sperm motility was observed in all subjects (r = -.172, p < .05). The 5hmC rate in the HoxC4 promoter in group OAZ was lower than that in group NZ (p < .05). These results indicated that altered 5hmC rates of AChE and HoxC4 promoters are associated with low sperm motility and sperm concentration respectively.
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Affiliation(s)
- Y Li
- School of Pharmacy, Fudan University, Shanghai, China
| | - Y H Li
- Key Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
| | - X Zhou
- Key Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
| | - B Wu
- Key Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
| | - J P Chen
- Key Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
| | - Z K Wang
- The hospital affiliated to Shanghai Institute of Planned Parenthood Research, Shanghai, China
| | - X Wang
- The hospital affiliated to Shanghai Institute of Planned Parenthood Research, Shanghai, China
| | - H J Shi
- Key Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
| | - R S Li
- Key Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai, China
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Chen JP, Shang N, He KH, Zhang L, Niu Q, Zhang QL. [Influence of aluminum chloride exposure on embryonic development of zebrafish and neurobehavior of juvenile fish]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:166-170. [PMID: 28511298 DOI: 10.3760/cma.j.issn.1001-9391.2017.03.002] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To investigate the influence of aluminum chloride (AlCl(3)) solution on the embryon-ic development of zebrafish and neurobehavior of juvenile fish. Methods: The embryos of zebrafishat 6 hours after fertilization were exposed to AlCl(3) solution at a concentration of 0, 55.0, 60.5, 66.6, 73.5, 80.5, or 100.0 mg/L, and embryonic hatching rates at 48 and 72 hours after fertilization were calculated. The embryos of zebrafishat 6 hours after fertilization were exposed to AlCl(3) solution at a concentration of 0, 60.0, 72.0, 86.4, 103.7, or 124.4 mg/L, and the embryonic mortality rates at 12, 24, 48, 72, and 96 hours after fertilization were calculat-ed. The embryos of zebrafish at 6 hours after fertilization were exposed to AlCl(3) solution at a concentration of 0, 50, 100, 200, 400, or 800 μg/L, and the changes in the neurobehavior of juvenile fish were observed after hatching, including touch-escape reaction at 72 hours after fertilization and autonomic movement and panic es-cape reflex at 7 days after fertilization. Results: Compared with the 0 mg/L group, the≥66.6 mg/L group had a sig-nificant reduction in embryonic hatching rate at 48 and 72 hours after fertilization, and the ≥72.0 mg/L group had a significant increase in embryonic mortality rate at 96 hours after fertilization (P<0.05) . Compared with the 0 μg/L group, the≥100 μg/L group had a significant reduction in the number of times of touch-escape reaction (P<0.05) .Compared with the 0 and 50 μg/L groups, the 100-800 μg/L groups had significant reductions in total movement distance and average speed (P<0.05) . Compared with the dark period before illumination, all groups had a significant increase in movement speed during the light period of the panic escape reflex test (i.e., the third minute) (P<0.05) ; within 2 minutes after the light was turned off, there was no significant change in movement speed in the 0-200 μg/L groups (P>0.05) ; the 400 and 800 μg/L groups had a significant increase in movement speed (P<0.05) . Conclusion: AlCl(3) exposure may cause embryonic developmental disorder in zebrafish and ab-normal neurobehavior in juvenile fish.
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Affiliation(s)
- J P Chen
- Department of Occupational Medicine, Shanxi Medical University, Taiyuan 030001, China
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Abstract
The compass-type anisotropy appears naturally in diverse physical contexts with strong spin-orbit coupling (SOC) such as transition metal oxides and cold atomic gases etc, and it has been receiving substantial attention. Motivated by recent studies and particularly recent experimental observations on helimagnet MnGe, we investigate the critical roles of this compass-type anisotropy in modulating various spin textures of chiral magnets with strong SOC, by Monte Carlo simulations based on a classical Heisenberg spin model with Dzyaloshinsky-Moriya interaction and compass anisotropy. A phase diagram with emergent spin orders in the space of compass anisotropy and out-of-plane magnetic field is presented. In this phase diagram, we propose that a hybrid super-crystal structure consisting of alternating half-skyrmion and half-anti-skyrmion is the possible zero-field ground state of MnGe. The simulated evolution of the spin structure driven by magnetic field is in good accordance with experimental observations on MnGe. Therefore, this Heisenberg spin model successfully captures the main physics responsible for the magnetic structures in MnGe, and the present work may also be instructive to research on the magnetic states in other systems with strong SOC.
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Affiliation(s)
- J P Chen
- Laboratory of Solid State Microstructures and Innovative Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.,School of Physics and Electronic Engineering, Guangzhou University, Guangzhou 510006, China
| | - Dan-Wei Zhang
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, SPTE, South China Normal University, Guangzhou 510006, China
| | - J-M Liu
- Laboratory of Solid State Microstructures and Innovative Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China.,Institute for Advanced Materials, South China Normal University, Guangzhou 510006, China
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Pang YX, Wu XH, Chen JP, Qiu HY, Niu Q, Zhang QL. [Aluminuminduced impairment in primary cultured rat choroid plexus epithelial cells]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:286-90. [PMID: 27514264 DOI: 10.3760/cma.j.issn.1001-9391.2016.04.012] [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: 11/05/2022]
Abstract
OBJECTIVE To investigate the impairment in primary cultured rat choroid plexus epithelial cells (CPECs)induced by aluminum. METHODS The choroid plexus isolated from Sprague-Dawley rats 14 days old was cut into pieces and digested by trypsin in the sterile area. The obtained single cells were cultured in DMEM with 1% epidermal growth factor and 20% fetal calf serum. Five days later, immunohistochemistry with anti-transthyretin antibody was used to identify the purity of cultured cells. The well-grown cells were treated with aluminum lactate at different concentrations (0, 100, 400, and 1 600 μmol/L for control, lowdose, mediumdose, and highdose groups). Fortyeight hours later, the cell viability, apoptotic rate, level of reactive oxygen species (ROS), and activity of superoxide dismutase (SOD)were measured in each group to evaluate the impairment in primary cultured rat CPECs by aluminum. RESULTS More than 95% of the cultured cells were identified as CPECs. The medium-and high-dose groups had significantly lower cell viability than the control group(86.74%±4.03% vs 100%, P<0.01; 81.90%±9.17% vs 100%, P<0.01). The high-dose group had significantly lower cell viability than the lowdose group (81.90%±9.17% vs 92.92%±8.81%, P<0.01). The medium-and high-dose groups had significantly higher apoptotic rates than the control group (7.26%±0.99% vs 1.29%±0.03%, P<0.01; 22.25%±1.55% vs 1.29%±0.03%, P<0.01)and the low-dose group (7.26%±0.99% vs 1.68%±0.27%, P<0.01; 22.25%±1.55% vs 1.68%±0.27%, P<0.01). The high-dose group had a significantly higher apoptotic rate than the medium-dose group (22.25%±1.55% vs 7.26%±0.99%, P<0.01). The mediumand high-dose groups had significantly higher fluorescence intensity of ROS than the control group (22.23%±0.41% vs 17.24%±0.09%, P<0.05; 25.10%±1.13% vs 17.24%±0.09%, P<0.05)and the lowdose group (22.23%±0.41% vs 18.31%±0.21%, P<0.05; 25.10%±1.13% vs 18.31%±0.21%, P<0.05). The highdose group had significantly higher fluorescence intensity of ROS than the mediumdose group (25.10%±1.13% vs 22.23%±0.41%, P< 0.05). The low-, medium-and high-dose groups had significantly lower SOD activity than the control group[(28.65±0.74)U/g Hb vs (37.35±1.05)U/g Hb, P<0.05; (22.75±1.94)U/g Hb vs (37.35±1.05)U/g Hb, P<0.05; (13.29±0.64)U/g Hb vs(37.35±1.05)U/g Hb, P<0.05]. The medium-and high-dose groups had significantly lower SOD activity than the low-dose group[(22.75±1.94)U/g Hb vs(28.65±0.74)U/g Hb, P<0.05; (13.29±0.64)U/g Hb vs (28.65±0.74)U/g Hb, P<0.05], while the high-dose group had had significantly lower SOD activity than the medium-dose group[(13.29±0.64)U/g Hb vs (22.75±1.94)U/g Hb, P<0.05]. There were no significant differences in cell viability, apoptotic rate, level of ROS, or activity of SOD between any other two groups (P>0.05). CONCLUSION Aluminum lactate may induce impairment in primary cultured rat CPECs. It reduces the cell viability, elevates the apoptotic rate, and causes oxidative stress.
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Affiliation(s)
- Y X Pang
- Department of Occupational Health, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
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Wu XH, Pang YX, Qiu HY, Chen JP, Zhang QL, Niu Q. [Effects of subchronic aluminum lactate exposure on learning and memory and transportation of Aβ in blood-cerebrospinal fluid in rats]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:90-94. [PMID: 27014883 DOI: 10.3760/cma.j.issn.1001-9391.2016.02.003] [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: 06/05/2023]
Abstract
OBJECTIVE To investigate the effects of aluminum lactate exposure on learning and memory and the transportation of amyloid-beta peptides(Aβ) in cerebrospinal fluid in rats. METHODS A total of 80 male Sprague-Dawley rats were randomly divided into solvent control(distilled water) group and low-, medium-, and high-dose aluminum poisoning groups(10, 30, and 90 mg/kg aluminum lactate), with 20 rats in each group, and the poisoning procedure was performed by gavage for 2 months. The Morris water maze test was used to test the rats' learning and memory, Western blot was used to measure the expression level of low-density lipoprotein receptor protein-1(LRP-1) in rats' choroid plexus, and enzyme-linked immunosorbent assay(ELISA) was used to measure the content of Aβ in the cerebrospinal fluid and plasma. RESULTS The Morris water maze test showed that in the place navigation test, with the increasing training time, the escape latency was significantly shortened in each group and showed significant differences between any two groups(P<0.05). In the spatial probe test, the time spent in target quadrant in the medium-and high-dose groups was 11.52±1.56 s and 10.43±5.27 s, respectively, which was significantly shorter than that in the control group and the low-dose group(15.81±3.01 s and 13.91±2.17 s)(P<0.05). The numbers of platform crossings in the medium-and high-dose groups were 2.64±1.39 and 1.50±0.76, respectively, which were significantly lower than those in the control group and the low-dose group(4.29±0.914 and 3.56±1.38)(P<0.05). The results of ELISA showed that the medium-and high-dose groups had significant increases in the content of Aβ1-42 in cerebrospinal fluid(320.35±84.82 pg/ml and 327.68±67.51 pg/ml), which was significantly higher than that in the control group(203.46±74.36 pg/ml) (P<0.05). The content of Aβ1-42 in plasma showed no significant difference between any two groups(P>0.05), and that of Aβ1-40 in cerebrospinal fluid and plasma also showed no significant difference between any two groups(P>0.05). The results of Western blot showed that the high-dose group had significantly lower protein expression of LRP-1 than the control group and the low-and medium-dose groups(0.57±0.21 vs 1.00±0.00/0.79±0.15/0.95±0.24, P<0.05). CONCLUSION Subchronic aluminum exposure may reduce learning and memory in rats, and the accumulation of Aβ in cerebrospinal fluid may be related to the reduced protein expression of LRP-1 in the choroid plexus, suggesting that aluminum affects learning and memory in rats through reducing the protein expression of LRP-1, influencing the transportation of Aβ, and leading to the accumulation of Aβ.
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Affiliation(s)
- X H Wu
- Department of Occupational and Environmental Health, Shanxi Medical University, Taiyuan 030001, China
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Zhang YW, Long E, Mihovilovič M, Jin G, Allada K, Anderson B, Annand JRM, Averett T, Ayerbe-Gayoso C, Boeglin W, Bradshaw P, Camsonne A, Canan M, Cates GD, Chen C, Chen JP, Chudakov E, De Leo R, Deng X, Deur A, Dutta C, El Fassi L, Flay D, Frullani S, Garibaldi F, Gao H, Gilad S, Gilman R, Glamazdin O, Golge S, Gomez J, Hansen O, Higinbotham DW, Holmstrom T, Huang J, Ibrahim H, de Jager CW, Jensen E, Jiang X, St John J, Jones M, Kang H, Katich J, Khanal HP, King P, Korsch W, LeRose J, Lindgren R, Lu HJ, Luo W, Markowitz P, Meziane M, Michaels R, Moffit B, Monaghan P, Muangma N, Nanda S, Norum BE, Pan K, Parno D, Piasetzky E, Posik M, Punjabi V, Puckett AJR, Qian X, Qiang Y, Qiu X, Riordan S, Ron G, Saha A, Sawatzky B, Schiavilla R, Schoenrock B, Shabestari M, Shahinyan A, Širca S, Subedi R, Sulkosky V, Tobias WA, Tireman W, Urciuoli GM, Wang D, Wang K, Wang Y, Watson J, Wojtsekhowski B, Ye Z, Zhan X, Zhang Y, Zheng X, Zhao B, Zhu L. Measurement of the Target-Normal Single-Spin Asymmetry in Quasielastic Scattering from the Reaction (3)He(↑)(e,e'). Phys Rev Lett 2015; 115:172502. [PMID: 26551107 DOI: 10.1103/physrevlett.115.172502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Indexed: 06/05/2023]
Abstract
We report the first measurement of the target single-spin asymmetry, A(y), in quasielastic scattering from the inclusive reaction (3)He(↑)(e,e') on a (3)He gas target polarized normal to the lepton scattering plane. Assuming time-reversal invariance, this asymmetry is strictly zero for one-photon exchange. A nonzero A(y) can arise from the interference between the one- and two-photon exchange processes which is sensitive to the details of the substructure of the nucleon. An experiment recently completed at Jefferson Lab yielded asymmetries with high statistical precision at Q(2)=0.13, 0.46, and 0.97 GeV(2). These measurements demonstrate, for the first time, that the (3)He asymmetry is clearly nonzero and negative at the 4σ-9σ level. Using measured proton-to-(3)He cross-section ratios and the effective polarization approximation, neutron asymmetries of -(1-3)% were obtained. The neutron asymmetry at high Q(2) is related to moments of the generalized parton distributions (GPDs). Our measured neutron asymmetry at Q(2)=0.97 GeV(2) agrees well with a prediction based on two-photon exchange using a GPD model and thus provides a new, independent constraint on these distributions.
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Affiliation(s)
- Y-W Zhang
- Rutgers University, New Brunswick, New Jersey 08901, USA
- University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - E Long
- Kent State University, Kent, Ohio 44242, USA
| | | | - G Jin
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - K Allada
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Anderson
- Kent State University, Kent, Ohio 44242, USA
| | - J R M Annand
- Glasgow University, Glasgow G12 8QQ Scotland, United Kingdom
| | - T Averett
- The College of William and Mary, Williamsburg, Virginia 23187, USA
| | - C Ayerbe-Gayoso
- The College of William and Mary, Williamsburg, Virginia 23187, USA
| | - W Boeglin
- Florida International University, Miami, Florida 33181, USA
| | - P Bradshaw
- The College of William and Mary, Williamsburg, Virginia 23187, USA
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Canan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - G D Cates
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - C Chen
- Hampton University, Hampton, Virginia 23669, USA
| | - J P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Chudakov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R De Leo
- Università degli studi di Bari Aldo Moro, I-70121 Bari, Italy
| | - X Deng
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Dutta
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - L El Fassi
- Rutgers University, New Brunswick, New Jersey 08901, USA
| | - D Flay
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S Frullani
- Istituto Nazionale Di Fisica Nucleare, INFN/Sanita, 00161 Roma, Italy
| | - F Garibaldi
- Istituto Nazionale Di Fisica Nucleare, INFN/Sanita, 00161 Roma, Italy
| | - H Gao
- Duke University, Durham, North Carolina 27708, USA
| | - S Gilad
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - R Gilman
- Rutgers University, New Brunswick, New Jersey 08901, USA
| | - O Glamazdin
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - S Golge
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J Gomez
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D W Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Holmstrom
- Longwood University, Farmville, Virginia 23909, USA
| | - J Huang
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - H Ibrahim
- Cairo University, Cairo, Giza 12613, Egypt
| | - C W de Jager
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Jensen
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - X Jiang
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J St John
- Longwood University, Farmville, Virginia 23909, USA
| | - M Jones
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Kang
- Seoul National University, Seoul 151-742, Korea
| | - J Katich
- The College of William and Mary, Williamsburg, Virginia 23187, USA
| | - H P Khanal
- Florida International University, Miami, Florida 33181, USA
| | - P King
- Ohio University, Athens, Ohio 45701, USA
| | - W Korsch
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - J LeRose
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Lindgren
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - H-J Lu
- Huangshan University, Tunxi, Huangshan City, Anhui Province 245041, People's Republic of China
| | - W Luo
- Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - P Markowitz
- Florida International University, Miami, Florida 33181, USA
| | - M Meziane
- The College of William and Mary, Williamsburg, Virginia 23187, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Moffit
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Monaghan
- Hampton University, Hampton, Virginia 23669, USA
| | - N Muangma
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Nanda
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B E Norum
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - K Pan
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - D Parno
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | | | - M Posik
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - V Punjabi
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - A J R Puckett
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - X Qian
- Duke University, Durham, North Carolina 27708, USA
| | - Y Qiang
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Qiu
- Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - S Riordan
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - G Ron
- Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - A Saha
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Sawatzky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Schiavilla
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - B Schoenrock
- Northern Michigan University, Marquette, Michigan 49855, USA
| | - M Shabestari
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - A Shahinyan
- Yerevan Physics Institute, Yerevan 375036, Armenia
| | - S Širca
- Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia
- University of Ljubljana, SI-1000 Ljubljana, Slovenia
| | - R Subedi
- George Washington University, Washington, D.C. 20052, USA
| | - V Sulkosky
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - W A Tobias
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - W Tireman
- Northern Michigan University, Marquette, Michigan 49855, USA
| | - G M Urciuoli
- Istituto Nazionale Di Fisica Nucleare, INFN/Sanita, 00161 Roma, Italy
| | - D Wang
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - K Wang
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - Y Wang
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - J Watson
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - Z Ye
- Hampton University, Hampton, Virginia 23669, USA
| | - X Zhan
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Y Zhang
- Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - X Zheng
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - B Zhao
- The College of William and Mary, Williamsburg, Virginia 23187, USA
| | - L Zhu
- Hampton University, Hampton, Virginia 23669, USA
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31
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Li LM, Wei L, Jiang HY, Zhang Y, Zhang XJ, Yuan LH, Chen JP. Rapid development of polymorphic microsatellite markers for the Amur sturgeon (Acipenser schrenckii) using next-generation sequencing technology. Genet Mol Res 2015. [PMID: 26214471 DOI: 10.4238/2015.july.14.16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Anthropogenic activities have seriously impacted wild resources of the Amur sturgeon, Acipenser schrenckii, and more information on local and regional population genetic structure is required to aid the conservation of this species. In this study, we report the development of 12 novel polymorphic microsatellite loci using next-generation sequencing technology, and the genotyping of 24 individuals collected from a sturgeon farm. The results show that the mean number of ob-served alleles per locus is 6.6 (ranging from 2 to 17). Observed and expected heterozygosity values ranged from 0 to 0.958 and from 0.508 to 0.940, respectively. Not a single locus showed significant departure from Hardy-Weinberg equilibrium and no linkage disequilibrium was observed among any pairwise loci. These highly informative microsatellite markers will be useful for genetic diversity and population structure analyses of A. schrenckii and other species of this genus.
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Affiliation(s)
- L M Li
- Guangdong Entomological Institute, Guangzhou, China
| | - L Wei
- College of Ecology, Lishui University, Lishui, China
| | - H Y Jiang
- Guangdong Entomological Institute, Guangzhou, China
| | - Y Zhang
- College of Animal Science of Inner Mongolia Agriculture University, Hohhot, China
| | - X J Zhang
- Guangdong Entomological Institute, Guangzhou, China
| | - L H Yuan
- Guangdong Entomological Institute, Guangzhou, China
| | - J P Chen
- Guangdong Entomological Institute, Guangzhou, China
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32
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Li X, Xu SN, Qin DB, Tan Y, Gong Q, Chen JP. Effect of adding gemtuzumab ozogamicin to induction chemotherapy for newly diagnosed acute myeloid leukemia: a meta-analysis of prospective randomized phase III trials. Ann Oncol 2015; 25:455-61. [PMID: 24478322 DOI: 10.1093/annonc/mdt566] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Gemtuzumab ozogamicin (GO) is a targeted antineoplastic agent comprised of a recombinant anti-CD33 humanized antibody linked to calicheamicin. Previous trials have showed conflicting results concerning the efficacy and toxicity of adding GO to induction chemotherapy for newly diagnosed acute myeloid leukemia (AML). A systematic review and meta-analysis was conducted to resolve this controversial issue. PATIENTS AND METHODS Summary data from five randomized phase III trials compared adding GO to induction chemotherapy with induction chemotherapy alone for newly diagnosed AML were meta-analyzed. Pooled hazard ratios (HRs) and 95% confidence intervals (CIs) for overall survival (OS) and relapse-free survival (RFS), and pooled odds ratios (ORs) and 95% CIs for complete remission (CR) rate, incidences of resistance disease, relapse and toxicity were calculated. RESULTS Data of 3596 patients (1798 GO and 1798 controls) from five randomized phase III trials were analyzed. Compared with induction chemotherapy alone, adding GO significantly prolonged OS (HR 0.93, 95% CI 0.86-1.00, P=0.05) and RFS (HR 0.87, 95% CI 0.79-0.95, P=0.003), decreased the incidences of resistant disease (OR 0.71, 95% CI 0.55-0.93, P=0.01) and relapse (OR 0.75, 95% CI 0.63-0.90, P=0.002), but had no effect on CR rate (OR 1.15, 95% CI 0.91-1.46, P=0.24). Sensitivity analysis yielded similar results. Subgroup analysis identified that cytogenetics might be an influencing factor for the effect of adding GO. In addition, the risks of grade 3-4 nausea/vomiting, diarrhea and liver aspartate transaminase (AST) elevation were increased in GO arm. CONCLUSIONS Adding GO to induction chemotherapy for newly diagnosed AML can significantly prolong OS and RFS, decrease incidences of resistant disease and relapse, but may increase risks of grade 3-4 nausea/vomiting, diarrhea and liver AST elevation.
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Affiliation(s)
- X Li
- Department of Hematology, Southwest Hospital, Third Military Medical University, Chongqing, China
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33
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Chu P, Xie YL, Zhang Y, Chen JP, Chen DP, Yan ZB, Liu JM. Real-space anisotropic dielectric response in a multiferroic skyrmion lattice. Sci Rep 2015; 5:8318. [PMID: 25661786 PMCID: PMC4321174 DOI: 10.1038/srep08318] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 01/14/2015] [Indexed: 11/09/2022] Open
Abstract
A magnetic skyrmion lattice is a microstructure consisting of hexagonally aligned skyrmions. While a skyrmion as a topologically protected carrier of information promises a number of applications, an easily accessible probe of the skyrmion and skyrmion lattice at mesoscopic scale is of significance. It is known that neutron scattering, Lorentz transmission electron microscopy, and spin-resolved STM as effective probes of skyrmions have been established. In this work, we propose that the spatial contour of dielectric permittivity in a skyrmion lattice with ferromagnetic interaction and in-plane (xy) Dzyaloshinskii-Moriya (DM) interaction can be used to characterize the skyrmion lattice. The phase field and Monte Carlo simulations are employed to develop the one-to-one correspondence between the magnetic skyrmion lattice and dielectric dipole lattice, both exhibiting the hexagonal symmetry. Under excitation of in-plane electric field in the microwave range, the dielectric permittivity shows the dumbbell-like pattern with the axis perpendicular to the electric field, while it is circle-like for the electric field along the z-axis. The dependences of the spatial contour of dielectric permittivity on external magnetic field along the z-axis and dielectric frequency dispersion are discussed.
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Affiliation(s)
- P Chu
- Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Y L Xie
- Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Y Zhang
- Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - J P Chen
- Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - D P Chen
- Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Z B Yan
- Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - J-M Liu
- 1] Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China [2] Institute for Quantum Materials, Hubei Polytechnic University, Huangshi 435000, China
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34
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Mihovilovič M, Jin G, Long E, Zhang YW, Allada K, Anderson B, Annand JRM, Averett T, Boeglin W, Bradshaw P, Camsonne A, Canan M, Cates GD, Chen C, Chen JP, Chudakov E, De Leo R, Deng X, Deltuva A, Deur A, Dutta C, El Fassi L, Flay D, Frullani S, Garibaldi F, Gao H, Gilad S, Gilman R, Glamazdin O, Golak J, Golge S, Gomez J, Hansen O, Higinbotham DW, Holmstrom T, Huang J, Ibrahim H, de Jager CW, Jensen E, Jiang X, Jones M, Kang H, Katich J, Khanal HP, Kievsky A, King P, Korsch W, LeRose J, Lindgren R, Lu HJ, Luo W, Marcucci LE, Markowitz P, Meziane M, Michaels R, Moffit B, Monaghan P, Muangma N, Nanda S, Norum BE, Pan K, Parno D, Piasetzky E, Posik M, Punjabi V, Puckett AJR, Qian X, Qiang Y, Qui X, Riordan S, Saha A, Sauer PU, Sawatzky B, Schiavilla R, Schoenrock B, Shabestari M, Shahinyan A, Širca S, Skibiński R, John JS, Subedi R, Sulkosky V, Tobias WA, Tireman W, Urciuoli GM, Viviani M, Wang D, Wang K, Wang Y, Watson J, Wojtsekhowski B, Witała H, Ye Z, Zhan X, Zhang Y, Zheng X, Zhao B, Zhu L. Measurement of double-polarization asymmetries in the quasielastic (3)He[→](e[→],e(')d) process. Phys Rev Lett 2014; 113:232505. [PMID: 25526124 DOI: 10.1103/physrevlett.113.232505] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Indexed: 06/04/2023]
Abstract
We present a precise measurement of double-polarization asymmetries in the ^{3}He[over →](e[over →],e^{'}d) reaction. This particular process is a uniquely sensitive probe of hadron dynamics in ^{3}He and the structure of the underlying electromagnetic currents. The measurements have been performed in and around quasielastic kinematics at Q^{2}=0.25(GeV/c)^{2} for missing momenta up to 270 MeV/c. The asymmetries are in fair agreement with the state-of-the-art calculations in terms of their functional dependencies on p_{m} and ω, but are systematically offset. Beyond the region of the quasielastic peak, the discrepancies become even more pronounced. Thus, our measurements have been able to reveal deficiencies in the most sophisticated calculations of the three-body nuclear system, and indicate that further refinement in the treatment of their two-and/or three-body dynamics is required.
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Affiliation(s)
| | - G Jin
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - E Long
- Kent State University, Kent, Ohio 44242, USA
| | - Y-W Zhang
- Rutgers University, New Brunswick, New Jersey 08901, USA
| | - K Allada
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Anderson
- Kent State University, Kent, Ohio 44242, USA
| | - J R M Annand
- Glasgow University, Glasgow G12 8QQ, Scotland, United Kingdom
| | - T Averett
- The College of William and Mary, Williamsburg, Virginia 23187, USA
| | - W Boeglin
- Florida International University, Miami, Florida 33181, USA
| | - P Bradshaw
- The College of William and Mary, Williamsburg, Virginia 23187, USA
| | - A Camsonne
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M Canan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - G D Cates
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - C Chen
- Hampton University, Hampton, Virginia 23669, USA
| | - J P Chen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Chudakov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R De Leo
- Università degli studi di Bari Aldo Moro, I-70121 Bari, Italy
| | - X Deng
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - A Deltuva
- Center for Nuclear Physics, University of Lisbon, P-1649-003 Lisbon, Portugal and Institute for Theoretical Physics and Astronomy, Vilnius University, LT-01108 Vilnius, Lithuania
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - C Dutta
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - L El Fassi
- Rutgers University, New Brunswick, New Jersey 08901, USA
| | - D Flay
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - S Frullani
- Istituto Nazionale Di Fisica Nucleare, INFN/Sanita, Roma, Italy
| | - F Garibaldi
- Istituto Nazionale Di Fisica Nucleare, INFN/Sanita, Roma, Italy
| | - H Gao
- Duke University, Durham, North Carolina 27708, USA
| | - S Gilad
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - R Gilman
- Rutgers University, New Brunswick, New Jersey 08901, USA
| | - O Glamazdin
- Kharkov Institute of Physics and Technology, Kharkov 61108, Ukraine
| | - J Golak
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30059 Kraków, Poland
| | - S Golge
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - J Gomez
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - O Hansen
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D W Higinbotham
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Holmstrom
- Longwood College, Farmville, Virginia 23909, USA
| | - J Huang
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - H Ibrahim
- Cairo University, Cairo, Giza 12613, Egypt
| | - C W de Jager
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - E Jensen
- Christopher Newport University, Newport News, Virginia 23606, USA
| | - X Jiang
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - M Jones
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Kang
- Seoul National University, Seoul, Korea
| | - J Katich
- The College of William and Mary, Williamsburg, Virginia 23187, USA
| | - H P Khanal
- Florida International University, Miami, Florida 33181, USA
| | | | - P King
- Ohio University, Athens, Ohio 45701, USA
| | - W Korsch
- University of Kentucky, Lexington, Kentucky 40506, USA
| | - J LeRose
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Lindgren
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - H-J Lu
- Huangshan University, People's Republic of China
| | - W Luo
- Lanzhou University, Lanzhou, Gansu, 730000, People's Republic of China
| | - L E Marcucci
- Physics Department, Pisa University, I-56127 Pisa, Italy
| | - P Markowitz
- Florida International University, Miami, Florida 33181, USA
| | - M Meziane
- The College of William and Mary, Williamsburg, Virginia 23187, USA
| | - R Michaels
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Moffit
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P Monaghan
- Hampton University, Hampton, Virginia 23669, USA
| | - N Muangma
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Nanda
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B E Norum
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - K Pan
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - D Parno
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | | | - M Posik
- Temple University, Philadelphia, Pennsylvania 19122, USA
| | - V Punjabi
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - A J R Puckett
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - X Qian
- Duke University, Durham, North Carolina 27708, USA
| | - Y Qiang
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - X Qui
- Lanzhou University, Lanzhou, Gansu, 730000, People's Republic of China
| | - S Riordan
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - A Saha
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - P U Sauer
- Institute for Theoretical Physics, University of Hannover, D-30167 Hannover, Germany
| | - B Sawatzky
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - R Schiavilla
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Old Dominion University, Norfolk, Virginia 23529, USA
| | - B Schoenrock
- Northern Michigan University, Marquette, Michigan 49855, USA
| | - M Shabestari
- University of Virginia, Charlottesville, Virginia 22908, USA
| | | | - S Širca
- Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia and University of Ljubljana, SI-1000 Ljubljana, Slovenia
| | - R Skibiński
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30059 Kraków, Poland
| | - J St John
- Longwood College, Farmville, Virginia 23909, USA
| | - R Subedi
- George Washington University, Washington, D.C. 20052, USA
| | - V Sulkosky
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - W A Tobias
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - W Tireman
- Northern Michigan University, Marquette, Michigan 49855, USA
| | - G M Urciuoli
- Istituto Nazionale Di Fisica Nucleare, INFN/Sanita, Roma, Italy
| | | | - D Wang
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - K Wang
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - Y Wang
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - J Watson
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - B Wojtsekhowski
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Witała
- M. Smoluchowski Institute of Physics, Jagiellonian University, PL-30059 Kraków, Poland
| | - Z Ye
- Hampton University, Hampton, Virginia 23669, USA
| | - X Zhan
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Y Zhang
- Lanzhou University, Lanzhou, Gansu, 730000, People's Republic of China
| | - X Zheng
- University of Virginia, Charlottesville, Virginia 22908, USA
| | - B Zhao
- The College of William and Mary, Williamsburg, Virginia 23187, USA
| | - L Zhu
- Hampton University, Hampton, Virginia 23669, USA
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35
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Xie YL, Chu P, Wang YL, Chen JP, Yan ZB, Liu JM. Wang-Landau sampling with logarithmic windows for continuous models. Phys Rev E Stat Nonlin Soft Matter Phys 2014; 89:013311. [PMID: 24580364 DOI: 10.1103/physreve.89.013311] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Indexed: 06/03/2023]
Abstract
We present a modified Wang-Landau sampling (MWLS) for continuous statistical models by partitioning the energy space into a set of windows with logarithmically shrinking width. To demonstrate its necessity and advantages, we apply this sampling to several continuous models, including the two-dimensional square XY spin model, triangular J1-J2 spin model, and Lennard-Jones cluster model. Given a finite number of bins for partitioning the energy space, the conventional Wang-Landau sampling may not generate sufficiently accurate density of states (DOS) around the energy boundaries. However, it is demonstrated that much more accurate DOS can be obtained by this MWLS, and thus a precise evaluation of the thermodynamic behaviors of the continuous models at extreme low temperature (kBT<0.1) becomes accessible. The present algorithm also allows efficient computation besides the highly reliable data sampling.
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Affiliation(s)
- Y L Xie
- Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
| | - P Chu
- Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
| | - Y L Wang
- Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
| | - J P Chen
- Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
| | - Z B Yan
- Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
| | - J-M Liu
- Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
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36
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Mu N, Xu SC, Chang Q, Rao DP, Chen JP, Ma C. Study of lipids, insulin metabolism, and paraoxonase-2-311 polymorphism in patients with different subtypes of Alzheimer's disease (translated version). East Asian Arch Psychiatry 2013; 23:114-119. [PMID: 24088404] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVE To investigate the characteristics of blood lipids, insulin metabolism, and paraoxonase-2-311 (PON2-311) polymorphism among patients with Alzheimer's disease with different types of dementia. METHODS A total of 84 patients with Alzheimer's disease, according to the National Institute of Neurological and Communicative Disorders and Stroke, and the Alzheimer's disease and Related Disorders Association clinical criteria for 'possible Alzheimer's disease', and with no family history of the condition, were enrolled. They were then categorised into 3 groups (senile dementia, presenile dementia, and mixed dementia) according to the diagnostic criteria of the Chinese Classification of Mental Disorders, third edition. Polymerase chain reaction-restriction fragment length polymorphism analysis was used to determine the presence of PON2-311 polymorphism. Serum cholesterol, triglycerides, high-density lipoprotein, low-density lipoprotein, and fasting blood sugar were measured. Fasting plasma insulin was measured using chemiluminescence. The basal-state method was used to assess insulin resistance expressed as insulin sensitivity index. The cognitive rating scale of the Mini-Mental State Examination, Activities of Daily Living scale, and Hachinski Ischemic Scale were used to establish the clinical features and severity of cognitive impairment. Differences in PON2-311C/S polymorphism, serum insulin, blood glucose, blood lipids, and neuropsychological score were analysed. RESULTS The serum triglyceride and cholesterol levels of the presenile dementia group were significantly higher than those of the senile and mixed dementia groups (p < 0.01). The high-density lipoprotein level of the senile dementia group was significantly higher than that of the mixed dementia group (p < 0.05). The serum insulin level of the presenile dementia group was significantly higher than that of the senile (p < 0.05) and mixed dementia groups (p < 0.01). There were no significant differences in distribution of the PON2-311 genotypes C/C, C/S, and S/S between the senile and mixed dementia groups, and no significant differences in C-allele and S-allele frequency between the 2 groups. CONCLUSIONS The differences in serum triglycerides, cholesterol, high-density lipoprotein, and insulin levels between Alzheimer patients with senile, presenile, and mixed dementia found in this study suggest that patients with presenile dementia should monitor their lipid and insulin metabolism. No significant differences were found for PON2-311 genotypes or allele frequencies in patients with dementia due to Alzheimer's disease.
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Affiliation(s)
- N Mu
- Division of Geriatric Psychiatry, Guangzhou Brain Hospital, Guangzhou, PR China; The First Clinical Medical School, Jinan University, Guangzhou, PR China
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Abstract
We constructed a genomic DNA library enriched for CA repeat motifs in Eonycteris spelaea. Nine microsatellite loci were isolated and tested on a population of 39 samples from Yunnan Province, China. These nine loci had three to 22 alleles per locus. Observed and expected heterozygosity values ranged from 0.079 to 0.963 and from 0.078 to 0.959. Two loci revealed significant departure from Hardy-Weinberg equilibrium and no linkage disequilibrium was found between loci pairs. These microsatellites can be a powerful molecular tool for population-level studies of E. spelaea.
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Affiliation(s)
- W W Shao
- Guangdong Entomological Institute, Guangzhou 510260, China, Institute of Zoology, Chinese Academy of Sciences, Beijing 100080, China, School of Life Science, Guangxi Normal University, Guilin 541004, China, School of Life Science, East China Normal University, Shanghai 200062, China
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Zhan JYX, Zheng KYZ, Zhu KY, Zhang WL, Bi CWC, Chen JP, Du CYQ, Dong TTX, Lau DTW, Tsim KWK. Importance of wine-treated Angelica Sinensis Radix in Si Wu Tang, a traditional herbal formula for treating women's ailments. Planta Med 2013; 79:533-537. [PMID: 23457023 DOI: 10.1055/s-0032-1328261] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Si Wu Tang (Four Agents Decoction), a traditional Chinese decoction composed of Angelica Sinensis Radix, Chuanxiong Rhizoma, Paeoniae Radix Alba, and Rehmanniae Radix Praeparata in a ratio of 1 : 1 : 1 : 1, has been used to treat women's diseases for more than a thousand years. According to the original description of Si Wu Tang, Angelica Sinensis Radix should be treated with wine. However, the importance of this wine-treated Angelica Sinensis Radix in Si Wu Tang's function has not been identified. In this article, the chemical and biological properties of two decoctions processed in different ways (Si Wu Tang with crude Angelica Sinensis Radix and Si Wu Tang with wine-treated Angelica Sinensis Radix) were compared for examination. The herbal decoction Si Wu Tang prepared from wine-treated Angelica Sinensis Radix contained much different amounts of its active compounds. Compared with Si Wu Tang using crude Angelica Sinensis Radix, Si Wu Tang prepared from wine-treated Angelica Sinensis Radix had better biological responses. Therefore, these findings accentuate the functional importance of herbs treated with wine in the Chinese decoction.
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Affiliation(s)
- Janis Y X Zhan
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Hong Kong SAR, China
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Zhang WL, Zheng KYZ, Zhu KY, Zhan JYX, Bi CWC, Chen JP, Dong TTX, Choi RCY, Lau DTW, Tsim KWK. Chemical and biological assessment of angelica roots from different cultivated regions in a chinese herbal decoction danggui buxue tang. Evid Based Complement Alternat Med 2013; 2013:483286. [PMID: 23476692 PMCID: PMC3576791 DOI: 10.1155/2013/483286] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Accepted: 12/26/2012] [Indexed: 11/18/2022]
Abstract
Roots of Angelica sinensis (Danggui) have been used in promoting blood circulation as herbal medicine for over 2000 years in China. Another species of Angelica roots called A. gigas is being used in Korea. To reveal the efficiency of different Angelica roots, the chemical and biological properties of Angelica roots from different cultivated regions were compared. Roots of A. sinensis contained higher levels of ferulic acid, Z-ligustilide, and senkyunolide A, while high amounts of butylphthalide and Z-butylenephthalide were found in A. gigas roots. The extracts deriving from A. gigas roots showed better effects in osteogenic and estrogenic properties than that of A. sinensis from China. However, this difference was markedly reduced when the Angelica roots were being prepared in a Chinese herbal decoction together with Astragali Radix as Danggui Buxue Tang. In contrast, the herbal decoction prepared from A. sinensis roots showed better responses in cell cultures. In addition, the extracts of A. gigas roots showed strong cell toxicity both as single herb and as Danggui Buxue Tang. This result revealed the distinct properties of Angelica roots from China and Korea suggesting the specific usage of herb in preparing a unique herbal decoction.
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Affiliation(s)
- Wendy L. Zhang
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong
| | - Ken Y. Z. Zheng
- Department of Biology, Hanshan Normal University, Chaozhou, Guangdong 521041, China
| | - Kevin Y. Zhu
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong
| | - Janis Y. X. Zhan
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong
| | - Cathy W. C. Bi
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong
| | - J. P. Chen
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong
| | - Tina T. X. Dong
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong
| | - Roy C. Y. Choi
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong
| | - David T. W. Lau
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong
| | - Karl W. K. Tsim
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay Road, Kowloon, Hong Kong
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Huang Y, Chen JP, Wang J. Acute abdominal aortic occlusion mimicking myeleterosis: a diagnostic challenge. J Postgrad Med 2013; 58:306-7. [PMID: 23298932 DOI: 10.4103/0022-3859.105462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Y Huang
- Department of Neurology, First Affiliated Hospital, Gannan Medical College, Jiangxi, China
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He W, Wang D, Ye Z, Qian W, Tao Y, Shi X, Liu L, Chen J, Qiu L, Wan P, Jia X, Li X, Gao C, Ma X, Wen B, Chen N, Li P, Ren Z, Lan L, Li S, Zuo Y, Zhang H, Ma L, Zhang Y, Li Z, Su W, Yang Q, Chen Q, Wang X, Ye Z, Chen JP, Loo WTY, Chow LWC, Yip AYS, Ng ELY, Cheung MNB, Wang Z. Application of a nanotechnology antimicrobial spray to prevent lower urinary tract infection: a multicenter urology trial. J Transl Med 2012; 10 Suppl 1:S14. [PMID: 23046566 PMCID: PMC3445864 DOI: 10.1186/1479-5876-10-s1-s14] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Background Catheter-associated urinary tract infection (CAUTI) is a common nosocomial device-associated infection. It is now recognized that the high infection rates were caused by the formation of biofilm on the surface of the catheters that decreases the susceptibility to antibiotics and results in anti-microbial resistance. In this study, we performed an in vitro test to explore the mechanism of biofilm formation and subsequently conducted a multi-center clinical trial to investigate the efficacy of CAUTI prevention with the application of JUC, a nanotechnology antimicrobial spray. Methods Siliconized latex urinary catheters were cut into fragments and sterilized by autoclaving. The sterilized sample fragments were randomly divided into the therapy and control group, whereby they were sprayed with JUC and distilled water respectively and dried before use. The experimental standard strains of Escherichia coli (E. coli) were isolated from the urine samples of patients. At 16 hours and 7 days of incubation, the samples were extracted for confocal laser scanning microscopy. A total of 1,150 patients were accrued in the clinical study. Patients were randomized according to the order of surgical treatment. The odd array of patients was assigned as the therapy group (JUC), and the even array of patients was assigned as the control group (normal saline). Results After 16 hours of culture, bacterial biofilm formed on the surface of sample fragments from the control group. In the therapy group, no bacterial biofilm formation was observed on the sample fragments. No significant increase in bacterial colony count was observed in the therapy group after 7 days of incubation. On the 7th day of catheterization, urine samples were collected for bacterial culture before extubation. Significant difference was observed in the incidence of bacteriuria between the therapy group and control group (4.52% vs. 13.04%, p < 0.001). Conclusions In this study, the effectiveness of JUC in preventing CAUTI in a hospital setting was demonstrated in both in vitro and clinical studies.
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Affiliation(s)
- Wei He
- School of Chinese Medicine, The University of Hong Kong, Hong Kong SAR
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Chen JP, Ge XH, Yao XC, Li ZY. Genome affinity and meiotic behaviour in trigenomic hybrids and their doubled allohexaploids between three cultivated Brassica allotetraploids and Brassica fruticulosa. Genome 2012; 55:164-71. [DOI: 10.1139/g11-087] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The wild species Brassica fruticulosa Cyr. (FF, 2n = 16) is closely related to the cultivated Brassica species. Through interspecific reciprocal crosses between B. fruticulosa and three cultivated Brassica allotetraploids (AABB, AACC, and BBCC where A = 10, B = 8, and C = 9), four trigenomic hybrids (F.AC, 2n = 27; F.AB, 2n = 26; F.BC, 2n = 25; BC.F, 2n = 25) were produced. By chromosome doubling of respective hybrids, three allohexaploids (FF.AACC, 2n = 54; FF.AABB, 2n = 52; BBCC.FF, 2n = 50) were synthesized. In pollen mother cells (PMCs) of the trigenomic hybrids, 1–2 autosyndetic bivalents were detected within A, B, and C genomes but only one within F genome; 1–3 allosyndetic bivalents between any two genomes were observed, and a closer relationship of F and B genomes than F and A genomes or F and C genomes was revealed. The allohexaploids showed a generally low but different pollen fertilities. The chromosomes in PMCs were predominantly paired as bivalents but some univalents and multivalents at variable frequencies were observed. The bivalents of homologous pairing for each genome prevailed, but allosyndetic quadrivalents and hexavalents involving any two genomes were observed, together with autosyndetic quadrivalents for A, B, and C genomes but not the F genome. The nondiploidized cytological behaviour of these allohexaploids contributed to their low fertility. The relationships between the genome affinity and meiotic behavior in these allohexaploids were discussed.
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Affiliation(s)
- J P Chen
- National Key Lab of Crop Genetic Improvement, National Center of Crop MolecularBreeding Technology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R, China
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Boeglin WU, Coman L, Ambrozewicz P, Aniol K, Arrington J, Batigne G, Bosted P, Camsonne A, Chang G, Chen JP, Choi S, Deur A, Epstein M, Finn JM, Frullani S, Furget C, Garibaldi F, Gayou O, Gilman R, Hansen O, Hayes D, Higinbotham DW, Hinton W, Hyde C, Ibrahim H, de Jager CW, Jiang X, Jones MK, Kaufman LJ, Klein A, Kox S, Kramer L, Kumbartzki G, Laget JM, LeRose J, Lindgren R, Margaziotis DJ, Markowitz P, McCormick K, Meziani Z, Michaels R, Milbrath B, Mitchell J, Monaghan P, Moteabbed M, Moussiegt P, Nasseripour R, Paschke K, Perdrisat C, Piasetzky E, Punjabi V, Qattan IA, Quéméner G, Ransome RD, Raue B, Réal JS, Reinhold J, Reitz B, Roché R, Roedelbronn M, Saha A, Slifer K, Solvignon P, Sulkosky V, Ulmer PE, Voutier E, Weinstein LB, Wojtsekhowski B, Zeier M. Probing the high momentum component of the deuteron at high Q2. Phys Rev Lett 2011; 107:262501. [PMID: 22243152 DOI: 10.1103/physrevlett.107.262501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Indexed: 05/31/2023]
Abstract
The (2)H(e,e'p)n cross section at a momentum transfer of 3.5 (GeV/c)(2) was measured over a kinematical range that made it possible to study this reaction for a set of fixed missing momenta as a function of the neutron recoil angle θ(nq) and to extract missing momentum distributions for fixed values of θ(nq) up to 0.55 GeV/c. In the region of 35°≤θ(nq)≤45° recent calculations, which predict that final-state interactions are small, agree reasonably well with the experimental data. Therefore, these experimental reduced cross sections provide direct access to the high momentum component of the deuteron momentum distribution in exclusive deuteron electrodisintegration.
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Affiliation(s)
- W U Boeglin
- Florida International University, University Park, Florida 33199, USA
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Riordan S, Abrahamyan S, Craver B, Kelleher A, Kolarkar A, Miller J, Cates GD, Liyanage N, Wojtsekhowski B, Acha A, Allada K, Anderson B, Aniol KA, Annand JRM, Arrington J, Averett T, Beck A, Bellis M, Boeglin W, Breuer H, Calarco JR, Camsonne A, Chen JP, Chudakov E, Coman L, Crowe B, Cusanno F, Day D, Degtyarenko P, Dolph PAM, Dutta C, Ferdi C, Fernández-Ramírez C, Feuerbach R, Fraile LM, Franklin G, Frullani S, Fuchs S, Garibaldi F, Gevorgyan N, Gilman R, Glamazdin A, Gomez J, Grimm K, Hansen JO, Herraiz JL, Higinbotham DW, Holmes R, Holmstrom T, Howell D, de Jager CW, Jiang X, Jones MK, Katich J, Kaufman LJ, Khandaker M, Kelly JJ, Kiselev D, Korsch W, LeRose J, Lindgren R, Markowitz P, Margaziotis DJ, Beck SMT, Mayilyan S, McCormick K, Meziani ZE, Michaels R, Moffit B, Nanda S, Nelyubin V, Ngo T, Nikolenko DM, Norum B, Pentchev L, Perdrisat CF, Piasetzky E, Pomatsalyuk R, Protopopescu D, Puckett AJR, Punjabi VA, Qian X, Qiang Y, Quinn B, Rachek I, Ransome RD, Reimer PE, Reitz B, Roche J, Ron G, Rondon O, Rosner G, Saha A, Sargsian MM, Sawatzky B, Segal J, Shabestari M, Shahinyan A, Shestakov Y, Singh J, Sirca S, Souder P, Stepanyan S, Stibunov V, Sulkosky V, Tajima S, Tobias WA, Udias JM, Urciuoli GM, Vlahovic B, Voskanyan H, Wang K, Wesselmann FR, Vignote JR, Wood SA, Wright J, Yao H, Zhu X. Measurements of the electric form factor of the neutron up to Q2=3.4 GeV2 using the reaction 3He(e,e'n)pp. Phys Rev Lett 2010; 105:262302. [PMID: 21231649 DOI: 10.1103/physrevlett.105.262302] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2010] [Indexed: 02/05/2023]
Abstract
The electric form factor of the neutron was determined from studies of the reaction 3He(e,e'n)pp in quasielastic kinematics in Hall A at Jefferson Lab. Longitudinally polarized electrons were scattered off a polarized target in which the nuclear polarization was oriented perpendicular to the momentum transfer. The scattered electrons were detected in a magnetic spectrometer in coincidence with neutrons that were registered in a large-solid-angle detector. More than doubling the Q2 range over which it is known, we find G(E)(n)=0.0236±0.0017(stat)±0.0026(syst), 0.0208±0.0024±0.0019, and 0.0147±0.0020±0.0014 for Q(2)=1.72, 2.48, and 3.41 GeV2, respectively.
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Affiliation(s)
- S Riordan
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
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Slifer K, Rondón OA, Aghalaryan A, Ahmidouch A, Asaturyan R, Bloch F, Boeglin W, Bosted P, Carasco C, Carlini R, Cha J, Chen JP, Christy ME, Cole L, Coman L, Crabb D, Danagoulian S, Day D, Dunne J, Elaasar M, Ent R, Fenker H, Frlez E, Gaskell D, Gan L, Gomez J, Hu B, Jourdan J, Jones MK, Keith C, Keppel CE, Khandaker M, Klein A, Kramer L, Liang Y, Lichtenstadt J, Lindgren R, Mack D, McKee P, McNulty D, Meekins D, Mkrtchyan H, Nasseripour R, Niculescu I, Normand K, Norum B, Pocanic D, Prok Y, Raue B, Reinhold J, Roche J, Kiselev D, Savvinov N, Sawatzky B, Seely M, Sick I, Smith C, Smith G, Stepanyan S, Tang L, Tajima S, Testa G, Vulcan W, Wang K, Warren G, Wesselmann FR, Wood S, Yan C, Yuan L, Yun J, Zeier M, Zhu H. Probing quark-gluon interactions with transverse polarized scattering. Phys Rev Lett 2010; 105:101601. [PMID: 20867509 DOI: 10.1103/physrevlett.105.101601] [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: 08/15/2009] [Revised: 08/24/2010] [Indexed: 05/29/2023]
Abstract
We have extracted QCD matrix elements from our data on doubly polarized inelastic scattering of electrons on nuclei. We find the higher twist matrix element d˜2, which arises strictly from quark-gluon interactions, to be unambiguously nonzero. The data also reveal an isospin dependence of higher twist effects if we assume that the Burkhardt-Cottingham sum rule is valid. The fundamental Bjorken sum rule obtained from the a0 matrix element is satisfied at our low momentum transfer.
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Affiliation(s)
- K Slifer
- University of Virginia, Charlottesville, Virginia 22903, USA
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Yao XC, Du XZ, Ge XH, Chen JP, Li ZY. Intra- and intergenomic chromosome pairings revealed by dual-color GISH in trigenomic hybrids of Brassica juncea and B. carinata with B. maurorum. Genome 2010; 53:14-22. [PMID: 20130745 DOI: 10.1139/g09-082] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
From dual-color genomic in situ hybridization (GISH) analysis of three trigenomic hybrids, Brassica maurorum (MM, 2n = 16) x B. juncea (AABB, 2n = 36) (M.AB), B. maurorum x B. carinata (BBCC, 2n = 34) (M.BC), and B. carinata x B. maurorum (BC.M), the three genomes of each hybrid were distinguished and autosyndesis and allosyndesis were evaluated. In M.AB, up to two autosyndetic bivalents occurred among the chromosomes of each genome; a maximum of three allosyndetic bivalents appeared between A-B, A-M, and B-M genomes. The similar pairings in M.BC and BC.M suggested that the cytoplasm of B. maurorum or B. carinata had no obvious effect on chromosome pairing. In M.BC and BC.M, a maximum of one autosyndetic bivalent was found for B and M genomes, but two were found for the C genome; from 0 to 2 allosyndetic bivalents were observed between B-C, B-M, and C-M genomes. The B-M allosyndesis frequency was higher than the A-M or C-M allosyndesis frequency in these hybrids, revealing the closer relationship of B and M genomes. The allosyndesis frequency was higher than the autosyndesis frequency among A, B, and C genomes in these combinations, suggesting that intergenomic homoeology was higher than intragenomic homoeology. The implications for genome evolution and crop breeding are discussed.
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Affiliation(s)
- X C Yao
- National Key Laboratory of Crop Genetic Improvement, National Center of Crop Molecular Breeding Technology, National Center of Oil Crop Improvement (Wuhan), College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, P.R. China
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Nakamura T, Chen JP, Panchal D, Nguyen T, King SB, Chronos N, Hou D. The role of intravascular ultrasound to guide drug-eluting stents implantation. Cardiovasc Hematol Agents Med Chem 2010; 8:22-28. [PMID: 20214600 DOI: 10.2174/187152510790796147] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 05/28/2023]
Abstract
Serial IVUS has demonstrated significant differences in intimal hyperplasia (IH) volume between drug-eluting stent (DES) and bare metal stents (BMS) in recent clinical trials. It has also been reported that IVUS is a useful tool in determining optimal DES implantation, especially for diabetes mellitus (DM) patients. Recent data have also suggested a critical role for, IVUS guidance in reduction of risk for DES thrombosis. IVUS has been invaluable in the elucidation of DES effects on the arterial wall, offering insight into the potential mechanisms of DES failure. Therefore, in this current manuscript, we review the potential benefits of intravascular ultrasound (IVUS) during drug eluting stent (DES) implantation.
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Affiliation(s)
- T Nakamura
- Saint Joseph's Translational Research Institute/Saint Joseph's Hospital Atlanta, 5671 Peachtree Dunwoody Road NE, Atlanta, GA 30342, USA
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Chen JP, Andersen DH, Veron G, Randi E, Zhang SY. Isolation and characterization of polymorphic microsatellite markers for the masked palm civet (Paguma larvata). Biochem Genet 2008; 46:392-7. [PMID: 18327669 PMCID: PMC7087744 DOI: 10.1007/s10528-008-9157-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2007] [Accepted: 01/08/2008] [Indexed: 11/29/2022]
Abstract
The masked palm civet (Paguma larvata) has been suspected to be the host of a SARS-like CoV virus that causes severe acute respiratory syndrome in humans. In China, the palm civet lives wild and is farmed, but even though the species is a potential carrier of the virus, its geographic distribution and genetic diversity have never been studied. We report the isolation and characterization of six polymorphic microsatellite markers for P. larvata. To characterize each locus, two farmed masked palm civet populations from Shanxi and Guangxi provinces in China were genotyped. The number of alleles per locus ranged from 3 to 15, and the observed heterozygosity for these populations was 47.1 and 68.7%, respectively.
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Affiliation(s)
- J P Chen
- South China Institute of Endangered Animals, Guangdong Academy of Sciences, Guangzhou, 510260, People's Republic of China.
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Guo L, Su J, Deng BW, Yu ZY, Kang LP, Zhao ZH, Shan YJ, Chen JP, Ma BP, Cong YW. Active pharmaceutical ingredients and mechanisms underlying phasic myometrial contractions stimulated with the saponin extract from Paris polyphylla Sm. var. yunnanensis used for abnormal uterine bleeding. Hum Reprod 2008; 23:964-71. [PMID: 18258765 DOI: 10.1093/humrep/den001] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Total steroidal saponins of Paris polyphylla Sm. var. yunnanensis (TSSP) have been widely used in China for the treatment of abnormal uterine bleeding (AUB). But until now, the main active constituents and the mechanisms underlying the pharmacological actions on uterine activity have not been described. METHODS Total steroidal saponins were extracted with EtOH and purified by chromatography. In vitro isometric contraction studies were performed using myometrial strips from estrogen-primed or pregnant rats. Intracellular calcium was monitored under a confocal microscope using Fluo-3 AM-loaded myometrial cells. RESULTS TSSP dose-dependently induced phasic myometrial contractions in vitro. Experiments with calcium channel blockers or kinase inhibitors demonstrated that the TSSP-stimulated myometrial contraction was mediated by an increase in [Ca(2+)](i) via influx of extracellular calcium and release of intracellular calcium. Through bioassay-guided separation, it was found that total spirostanol saponins exhibited contractile activity in myometrium and Pennogenin-3-O-alpha-L-arabinofuranosyl(1-->4)[alpha-L-rhamnopyranosyl(1-->2)]-beta-D-glucopyranoside (PARG) was identified as the active ingredient of TSSP. Furthermore, the contractile response of rat myometrium to PARG was significantly enhanced with advancing pregnancy. CONCLUSIONS These data provide evidence that myometrial contractility stimulated by TSSP results from [Ca(2+)](i) increase and supports the possibility that some spirostanol gylcosides may represent a new type of contractile agonist for the uterus.
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Affiliation(s)
- L Guo
- Department of Pathophysiology, Beijing Institute of Radiation Medicine, No. 27 Taiping Road, Beijing 100850, China
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Pendyala L, Jabara R, Hou D, Shinke T, Li J, Gadesam R, Robinson K, Chronos N, Chen JP. Review of percutaneous therapy for bifurcation lesions in the era of drug-eluting stents. Minerva Cardioangiol 2008; 56:89-105. [PMID: 18432172] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Although recent advances in percutaneous coronary interventions (PCI) have led to dramatic expansions in procedural complexity, bifurcation lesions (BL) remain a serious challenge for the interventionalist. Turbulent flow dynamics and high shear stress likely predispose coronary bifurcations to development of atherosclerotic plaques. These lesions comprise 15% to 20% of the total number of coronary interventions. When compared with non-BL interventions, BL interventions demonstrate lower procedural success rates, higher procedural costs, longer hospitalizations, and higher clinical and angiographic restenosis rates. The recent introduction of drug-eluting stents (DES) has resulted in lower incidences of target lesion/ vessel revascularization and reduction of main branch restenosis in this anatomic subset, when compared to historical bare metal stent (BMS) controls. Nonetheless, DES have not resolved the bifurcation PCI problem; and several techniques employing either 1 or 2 stents have emerged. Stenting of the main vessel with provisional side branch stenting seems to be the prevailing approach. While no definitive single BL-PCI technique has been identified, the optimal approach is likely lesion-specific. This paper reviews different treatment modalities for this complex lesion subset, with particular emphasis on the use of DES, as well as new potential therapeutic approaches.
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Affiliation(s)
- L Pendyala
- Saint Joseph's Translational Research Institute, Saint Joseph's Hospital of Atlanta, Atlanta, GA 30342, USA
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