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Rong ZH, Li FS, Wang P, Di X, Ni L, Liu CW. [Research progress of tRNA-derived small RNA in cardiovascular diseases]. Zhonghua Xin Xue Guan Bing Za Zhi 2024; 52:445-450. [PMID: 38644263 DOI: 10.3760/cma.j.cn112148-20231018-00339] [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: 04/23/2024]
Affiliation(s)
- Z H Rong
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - F S Li
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - P Wang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - X Di
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - L Ni
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - C W Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
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Jing J, Xu D, Li Z, Wang J, Dai J, Li FS. Genetic variation of six specific SNPs of chronic obstructive pulmonary disease among Chinese population. Pulmonology 2024; 30:113-121. [PMID: 35501282 DOI: 10.1016/j.pulmoe.2022.02.004] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 02/11/2022] [Accepted: 02/13/2022] [Indexed: 10/18/2022] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) is a chronic bronchitis (or) emphysema with a high disability and fatality rate. This study aimed to explore the correlation between the six selected single nucleotide polymorphisms (SNPs) and the risk of COPD in the Chinese population. METHODS The Agena MassARRAY platform was used to select six SNPs from 629 subjects for genotyping. The correlation between SNPs and COPD risk was evaluated using calculated odds ratios (ORs) and 95% confidence intervals (CIs). Multi-factor dimensionality reduction (MDR) was performed to analyze the impact of SNP interactions on COPD risk. Multiple comparisons were performed using Bonferroni- correction. RESULTS Our results indicated that rs4719841 and rs7934083 variants were associated with a reduced risk of COPD. The analysis results of age, gender and non-smokers showed that rs4719841 and rs7934083 were associated with reducing the risk of COPD. In addition, the results showed that the genetic models of rs4719841, rs7934083 and rs7780562 were related to the forced vital capacity, respiratory rate per second, and respiratory rate / forced vital capacity of COPD patients, respectively. The results of the MDR analysis showed that the three-locus model (rs4719841, rs7934083, and rs78750958) is the best for COPD risk assessment. CONCLUSION This study shows that rs4719841 and rs7934083 are associated with the risk of COPD in the Chinese population, which provides some insights for early screening, prevention, and diagnosis of COPD in high-risk populations.
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Affiliation(s)
- J Jing
- The Fourth Clinical Medical College of Xinjiang Medical University, China; The COPD Laboratory of Clinical Research Base, Chinese Medicine Hospital of Xinjiang Uygur Autonomous Region, China
| | - D Xu
- The COPD Laboratory of Clinical Research Base, Chinese Medicine Hospital of Xinjiang Uygur Autonomous Region, China
| | - Z Li
- The COPD Laboratory of Clinical Research Base, Chinese Medicine Hospital of Xinjiang Uygur Autonomous Region, China
| | - J Wang
- The Clinical Research Base Laboratory, Chinese Medicine Hospital of Xinjiang Uygur Autonomous Region, China
| | - J Dai
- The Fourth Clinical Medical College of Xinjiang Medical University, China
| | - F S Li
- The COPD Laboratory of Clinical Research Base, Chinese Medicine Hospital of Xinjiang Uygur Autonomous Region, China; The Clinical Research Base Laboratory, Chinese Medicine Hospital of Xinjiang Uygur Autonomous Region, China.
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Rong ZH, Ni L, Zhang R, Niu S, Li FS, Liu CW. [Research progress on the role of non-coding RNA in the functional regulation of vascular smooth muscle cells]. Zhonghua Xin Xue Guan Bing Za Zhi 2023; 51:535-541. [PMID: 37198127 DOI: 10.3760/cma.j.cn112148-20230310-00131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Affiliation(s)
- Z H Rong
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - L Ni
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - R Zhang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - S Niu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - F S Li
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - C W Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
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McKee KS, Akobirshoev I, McKee M, Li FS, Mitra M. Postpartum Hospital Readmissions Among Massachusetts Women Who are Deaf or Hard of Hearing. J Womens Health (Larchmt) 2023; 32:109-117. [PMID: 36040351 PMCID: PMC10024058 DOI: 10.1089/jwh.2022.0068] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Objectives: Deaf or hard of hearing (DHH) women are at a higher risk of adverse pregnancy and birth outcomes compared with other women. However, little is known about postpartum outcomes among DHH women. The objective was to compare the risk of postpartum hospitalizations for DHH compared with non-DHH women and the leading indications for postpartum admissions. Materials and Methods: We analyzed data from the 1998-2017 Massachusetts Pregnancy to Early Life Longitudinal Data System and identified 3,546 singleton deliveries to DHH women and 1,381,439 singleton deliveries to non-DHH women. We used Cox proportional hazard models to compare the first hospital admission and ≥2 hospital admissions between DHH and non-DHH women within 1-42, 43-90, and 91-365 days after delivery. Results: DHH women had a higher risk for any hospital admissions across all periods (hazard ratios [HR] = 1.84; 95% confidence intervals [CI] 1.46-2.34 within 1-42 days; HR = 2.76; 95%CI 1.99-3.83 within 43-90 days; and HR = 3.10; 95%CI 2.66-3.60 91-365 days) after childbirth compared with non-DHH women. They had an almost seven times higher risk for repeated hospital admissions within 43-90 days (HR = 6.84; 95%CI 1.66-28.21) and nearly four times higher the risk within 91-365 days (HR = 3.63; 95%CI 2.00-6.59) after delivery compared with non-DHH women. The leading indications for readmission among DHH women included: conditions complicating the puerperium/hemorrhage and soft tissues disorders. Conclusion: Compared with other women, DHH women had significantly higher readmissions across all postpartum periods and for repeated admissions >42 days. Leading postpartum indications were distinct from those of non-DHH women.
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Affiliation(s)
- Kimberly S. McKee
- Department of Family Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Ilhom Akobirshoev
- Lurie Institute for Disability Policy, Heller School, Brandeis University, Waltham, Massachusetts, USA
| | - Michael McKee
- Department of Family Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Frank S. Li
- Lurie Institute for Disability Policy, Heller School, Brandeis University, Waltham, Massachusetts, USA
| | - Monika Mitra
- Lurie Institute for Disability Policy, Heller School, Brandeis University, Waltham, Massachusetts, USA
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Zandam H, Mitra M, Akobirshoev I, Li FS, Ne'eman A. Infectious Diseases-Related Emergency Department Visits Among Non-Elderly Adults with Intellectual and Developmental Disabilities in the United States: Results from the National Emergency Department Sample, 2016. Popul Health Manag 2021; 25:335-342. [PMID: 34665664 DOI: 10.1089/pop.2021.0218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Emerging evidence on the disproportionate impact of COVID-19 on people with intellectual and developmental disabilities (IDD) points to the underlying risk and burden of infectious diseases (IDs) in this population. The objective of this study was to examine the risk of ID-related emergency department (ED) visits, subsequent hospitalizations, and hospital-based mortality during ID-related visits among adults with IDD compared to those without IDD. The authors conducted a retrospective study using data from the 2016 Nationwide Emergency Department Sample. The sample included 94,928 adults with IDD identified using ICD-10-CM codes, and age- and sex-matched 284,763 non-IDD adults in a 1:3 case-control ratio. A Poisson regression model was used to compare the risk of ID-related ED visits, subsequent hospitalizations, and hospital-based mortality during ID-related visits between adults with and without IDD. Covariates included sociodemographic and hospital characteristics. Results showed that adults with IDD are at a higher risk for ID-related ED visits, subsequent hospitalization, and mortality during ID-related ED visits compared to non-IDD adults. Adults with IDD continued to experience higher risks even after accounting for sociodemographic, hospital, and clinical characteristics. Septicemia and respiratory tract infections are the leading causes of ED visits, hospitalization, and mortality. This study found substantial disparities in ID-related ED visits, subsequent hospitalization, and mortality among the burdens for adults with IDD. These observations underscore the importance of integrated strategies to reduce ID-related morbidity among adults with IDD.
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Affiliation(s)
- Hussaini Zandam
- Lurie Institute for Disability Policy, The Heller School for Social Policy and Management, Brandeis University, Waltham, Massachusetts, USA
| | - Monika Mitra
- Lurie Institute for Disability Policy, The Heller School for Social Policy and Management, Brandeis University, Waltham, Massachusetts, USA
| | - Ilhom Akobirshoev
- Lurie Institute for Disability Policy, The Heller School for Social Policy and Management, Brandeis University, Waltham, Massachusetts, USA
| | - Frank S Li
- Lurie Institute for Disability Policy, The Heller School for Social Policy and Management, Brandeis University, Waltham, Massachusetts, USA
| | - Ari Ne'eman
- Lurie Institute for Disability Policy, The Heller School for Social Policy and Management, Brandeis University, Waltham, Massachusetts, USA
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Huang H, Li FS, Wang L, Du ZG, Xu SN. [Relief effect of CT-guided (125)I seed implantation on patients with spinal and paraspinal osteolytic metastatic tumors]. Zhonghua Zhong Liu Za Zhi 2017; 39:220-224. [PMID: 28316224 DOI: 10.3760/cma.j.issn.0253-3766.2017.03.013] [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 evaluate the clinical value of computed tomography (CT)-guided (125)I seed implantation in the treatment of patients with spinal and/or paraspinal osteolytic metastatic tumors. Methods: The radiation dose distribution was planned for 27 patients with 35 spinal and paraspinal osteolytic metastatic tumors by a treatment planning system (TPS). CT-guided (125)I seed implantation was carried out in the patients, and the quality of treatment was evaluated based on CT-imaging follow-up. Results: All the 27 patients underwent CT-guided (125)I seed implantation successfully. 12 to 50 (125)I seeds were injected into each spinal or paraspinal metastatic tumor, 39.15 on average, and the specific radioactive activity of the particles ranged from 0.60 to 0.80 mCi, 0.73 mCi on average. The minimal percentage of the dose received by 90% of the target volume (D(90)) of the spinal and paraspinal metastatic tumors ranged from 90 to 165 Gy, 115.03 Gy on average. Among the 27 patients, 21 (77.8%) had partial remission (PR) and 6(22.2%)had stable disease (SD). The Numerical Rating Scale (NRS) scores before implantation and at postoperative 3 and 6 months were 7.81±0.74, 2.04±1.10 and 1.81±0.79, respectively, (P<0.05). The assessment of pain intensity before (125)I seed implantation and at 3 postoperative months showed obvious improvements in the patients evaluated according to the American Spinal Injury Association (ASIA) impairment scale: 12 (44.4%) patients with ASIA grade C were changed to grade D, 3 (11.1%) from grade C to grade E, 8 (29.6%) from grade D to grade E, 3 (11.1%) with a stable grade D, and 1 (3.7%)with a stablegrade C. The Karnovsky performance scale (KPS) scores before treatment and at 3 months and 6 months postoperatively were 66.30±6.88, 85.93±9.31 and 87.91±8.56, respectively (P<0.05). Their local control rate (LCR) at 3 months, 6 months and 1 year postoperatively were 100%, 92.6% and 51.9%, respectively, and the overall survival rates(OSR) were 100%, 92.6% and 55.6%, respectively. Conclusions: CT-guided (125)I seed implantation can significantly relieve local pain, has advantages of less complications and higher local control rate. Therefore, it is a safe, effective and feasible treatment option for patients with spinal and paraspinal osteolytic metastatic tumors.
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Affiliation(s)
- H Huang
- Department of Orthopedic Oncology, the People's Hospital of Liaoning Province, Shenyang 110016, China
| | - F S Li
- Department of Orthopedic Oncology, the People's Hospital of Liaoning Province, Shenyang 110016, China
| | - L Wang
- Department of Orthopedic Oncology, the People's Hospital of Liaoning Province, Shenyang 110016, China
| | - Z G Du
- Department of Orthopedic Oncology, the People's Hospital of Liaoning Province, Shenyang 110016, China
| | - S N Xu
- Department of Orthopedic Oncology, the People's Hospital of Liaoning Province, Shenyang 110016, China
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Tian YC, Zhang WH, Li FS, Wu YL, Wu Q, Sun F, Zhou GY, Wang L, Ma X, Xue QK, Zhao J. Ultrafast Dynamics Evidence of High Temperature Superconductivity in Single Unit Cell FeSe on SrTiO_{3}. Phys Rev Lett 2016; 116:107001. [PMID: 27015504 DOI: 10.1103/physrevlett.116.107001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Indexed: 06/05/2023]
Abstract
We report the time-resolved excited state ultrafast dynamics of single unit cell (1 UC) thick FeSe films on SrTiO_{3} (STO), with FeTe capping layers. By measuring the photoexcited quasiparticles' density and lifetime, we unambiguously identify a superconducting (SC) phase transition, with a transition temperature T_{c} of 68 (-5/+2) K and a SC gap of Δ(0)=20.2±1.5 meV. The obtained electron-phonon coupling strength λ is as large as 0.48, demonstrating the likely crucial role of electron-phonon coupling in the high temperature superconductivity of the 1 UC FeSe on STO systems. We further find a 0.05 THz coherent acoustic phonon branch in the capping layer, which provides an additional decay channel to the gluing bosons.
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Affiliation(s)
- Y C Tian
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - W H Zhang
- State Key Laboratory for Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
| | - F S Li
- State Key Laboratory for Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
| | - Y L Wu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Q Wu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - F Sun
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - G Y Zhou
- State Key Laboratory for Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
| | - Lili Wang
- State Key Laboratory for Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Xucun Ma
- State Key Laboratory for Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Qi-Kun Xue
- State Key Laboratory for Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
| | - Jimin Zhao
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
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Hou H, Yao N, Li JN, Wei Y, Zhao L, Zhang J, Li FS. Migration and leaching risk of extraneous antimony in three representative soils of China: lysimeter and batch experiments. Chemosphere 2013; 93:1980-1988. [PMID: 23931906 DOI: 10.1016/j.chemosphere.2013.07.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Revised: 07/02/2013] [Accepted: 07/06/2013] [Indexed: 06/02/2023]
Abstract
Antimony (Sb) distribution, solubility and mobility onto natural soils of China were studied in lysimeter and batch experiments as a function of physicochemical properties of the soil. An outdoor lysimeter experiment investigated the leaching and migration of Sb in the soils with Sb-polluted topsoil and unpolluted subsoil over a 5month period. Soil solutions were collected by suction cups installed at different depth of lysimeters, and leachates were regularly collected and analyzed for Sb concentrations. The majority of the added Sb was retained in the topsoil layers, but small portions were moved to the sub-layers. Sb concentrations in the soil solutions and leachates ranged from 0-755.5 (6.38±54 on average) μg l(-1) and 0-0.45 (smaller than the detection limit) μg l(-1) respectively, indicating the low solubility of Sb in the soils. Batch experiments were performed in order to determine the sorption capacity and the partition coefficient (Kd). Freundlich isotherm described properly the equilibrium experimental data and results show that the Kd values for Primosol, Isohumosol, Ferrosol equal to 22.5, 87.8, 704 L kg(-1), respectively. These results showed the strong capacity of the soils to retain Sb, and prevent it being leached down the profile. The mobilizable Sb was in the order: Primosol>Isohumosol>Ferrosol. Sb migration in the soils was mainly associated with the exchangeable, carbonate-bound, and metal-organic complex-bound fractions. Health risk assessment indicates that Sb leaching from Ferrosol will not harm to human health through groundwater under the test conditions, while it has certain health risks from the Isohumosol and Primosol.
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Affiliation(s)
- H Hou
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Dayangfang 8, Beijing 100012, PR China.
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Hou H, Zhao L, Zhang J, Xu YF, Yan ZG, Bai LP, Li FS. Organochlorine pesticides and polychlorinated biphenyls in soils surrounding the Tanggu Chemical Industrial District of Tianjin, China. Environ Sci Pollut Res Int 2013; 20:3366-3380. [PMID: 23108756 DOI: 10.1007/s11356-012-1260-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Accepted: 10/10/2012] [Indexed: 06/01/2023]
Abstract
The spatial distribution of persistent organic pollutants (POPs) was examined in soils surrounding the Tanggu Chemical Industrial District in Tianjin, China. The concentrations of hexachlorocyclohexanes (HCHs), dichlorodiphenyltrichloroethanes (DDTs), hexachlorobenzenes (HCBs), and polychlorinated biphenyls (PCBs) were determined in 70 surface soils using accelerated solvent extraction and gas chromatography with electron capture detection. The results showed that the ranges of ∑HCH, ∑DDT, ΣHCB, and ∑PCB concentrations in soils were 2.1-12,549 μg kg(-1) (average, 965 μg kg(-1)), n.d.-2,033 μg kg(-1) (average, 88.4 μg kg(-1)), n.d.-1,924 μg kg(-1) (average, 349 μg kg(-1)), and n.d.-373 μg kg(-1) (average, 46.2 μg kg(-1)), respectively. Of these, HCHs were the dominant POPs, accounting for 75 % of the total organochlorine pesticide (OCP) residues. Overall, the spatial distribution of OCP concentrations showed a decreasing trend from the center of the Tanggu District to the surrounding areas. Two major pollution sources were Tianjin Dagu Chemical Co., Ltd. in the district center and the Tianjin Chemical Plant in Hangu District. In contrast, PCB concentrations were relatively high in the Haihe estuary to the east and low to the west of the study area. Component analysis of OCPs in these soils showed that they mainly came from industrial point sources. Compared with soils in other regions, soil DDT pollution was at a medium level in the Tanggu Chemical Industrial District, but associated HCH, HCB, and PCB pollution was relatively heavy. By multivariate statistical analyses, Tianjin Dagu Chemical Co., Ltd. was recognized as the main source of POPs, and soil properties were clarified to play an important role on the distribution and composition of POPs, especially the organic carbon content.
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Affiliation(s)
- Hong Hou
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Dayangfang 8, Beijing 100012, People's Republic of China.
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Wang T, Wang Y, Fu Y, Hasegawa T, Li FS, Saito H, Ishio S. A magnetic force microscopy study of the magnetic reversal of a single Fe nanowire. Nanotechnology 2009; 20:105707. [PMID: 19417535 DOI: 10.1088/0957-4484/20/10/105707] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
The magnetization reversal properties of a single 60 nm diameter Fe nanowire were investigated with an in-field magnetic force microscope (MFM). MFM images were observed in a successively decreasing applied field, at various angles between the applied field and the nanowire axis. The results show that the magnetization undergoes a sharp reversal at various angles. When the applied field deviates from the nanowire axis, before complete magnetization reversal, a coherent rotation of magnetic moments inside the nanowire and a stable vortex state at the end of the nanowire are exhibited. The angle dependence of the switching field can be closely described by a curling model, despite the fact the magnetization reversal process is not identical to this model.
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Affiliation(s)
- T Wang
- VBL of Akita University, Gakuen Machi 1-1, Tegata, Akita 010-8502, Japan.
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Wang T, Wang Y, Fu Y, Hasegawa T, Oshima H, Itoh K, Nishio K, Masuda H, Li FS, Saito H, Ishio S. Magnetic behavior in an ordered Co nanorod array. Nanotechnology 2008; 19:455703. [PMID: 21832792 DOI: 10.1088/0957-4484/19/45/455703] [Citation(s) in RCA: 3] [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] [Indexed: 05/19/2023]
Abstract
The magnetization reversal process of an ordered Co nanorod array is shown using the images obtained from successive in-field magnetic force microscope (MFM) measurements. The magnetization reversal model is discussed according to local and whole magnetization reversal properties measured by the polar magneto-optical Kerr effect (PMOKE) and an alternating gradient magnetometer (AGM), respectively. Additionally, the dipolar field was probed using in-field MFM measurements. By removing the effect of the dipolar field, an intrinsic switching field distribution (SFD) is shown in a map with a hexagonal array. A detailed study of the dipolar field in ordered nanorod arrays with various diameters and pitches was carried out by numerical calculations.
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Affiliation(s)
- T Wang
- VBL of Akita University, Gakuen Machi 1-1, Tegata, Akita 010-8502, Japan. Institute of Applied Magnetics, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, People's Republic of China
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Sang YM, Gu QB, Sun TC, Li FS. Color and organic compounds removal from secondary effluent of landfill leachate with a novel inorganic polymer coagulant. Water Sci Technol 2008; 58:1423-1432. [PMID: 18957755 DOI: 10.2166/wst.2008.446] [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] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Emerging contaminants in landfill leachate are causing environmental concerns due to their adverse impacts on the aquatic environment. The most popular biological process is mostly the first stage in combination with additional physical-chemical process. Current post-treatments are limited by high operating costs, low treatment efficiencies, or sensitive operating conditions. Poly-aluminium(III)-magnesium(II)-sulfate (PMAS in brief) is used to remove color and organic compounds in secondary effluent of landfill leachate. More than 40 kinds of organic matters in the secondary effluent are identified and 10 of them belong to the Black List of environmental preferred controlled pollutants considered by EPA of USA or China. Removals of COD, BOD(5), UV(254) and color by coagulation with PAMS can reach above 60%, 55%, 85% and 85% respectively under the optimum conditions. The species of alkyl, alkene, acyclic alcohol and acyclic acyl amine are efficiently removed (about 85%), with some of them removed completely, while the species of acid, ester and ketone are mostly removed (about 65%) and such matters with benzene ring as aromatic hydrocarbon, hydroxybenzene, aromatic alcohol, aromatic acyl amine are partially removed (about 50%). Organic pollutants in the secondary effluent are greatly removed with high efficiency here, which greatly weakens its pollution extent.
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Affiliation(s)
- Y M Sang
- College of Civil and Environmental Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China.
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Li FS, Xu ZX, Xiao HB, Liang XM. [Simultaneous determination of sulbactam sodium and cefoperazone sodium in sulperazon by high performance liquid chromatography]. Se Pu 2000; 18:525-6. [PMID: 12541740] [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: 02/28/2023] Open
Abstract
A reversed-phase, isocratic high performance liquid chromatographic method with acid mobile phase can separate sulbactam and cafoperazone within 12 minutes. Column packed with Hypersil ODS2(250 mm x 4.6 mm i.d., 5 microns) was manufactured by Dalian Elite Company. Mobile phase is composed of water (adjusted to pH 4.0 with 1% phosphoric acid) and acetonitrile (80:20, V/V). The detection was performed at 210 nm and the injection volume was 2 microL. Cefoperazone and sulbactam have good linearity in the ranges of 100 mg/L to 800 mg/L and 100 mg/L to 1,000 mg/L with the correlation coefficients of 0.9991 and 0.9997 respectively. This method is easily to be operated and can be applied for manufacturing and medicinal study.
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Affiliation(s)
- F S Li
- Department of Clinical Laboratory, Dalian Medicinal University, Dalian 116027, China
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Liang GD, Li L, Zhou GL, Fu SH, Li QP, Li FS, He HH, Jin Q, He Y, Chen BQ, Hou YD. Isolation and complete nucleotide sequence of a Chinese Sindbis-like virus. J Gen Virol 2000; 81:1347-51. [PMID: 10769078 DOI: 10.1099/0022-1317-81-5-1347] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Infection with alphaviruses is common in the Chinese population. Here we report the isolation of a Sindbis-like virus from a pool of Anopheles mosquitoes collected in Xinjiang, China during an arbovirus survey. This virus, designated XJ-160, rapidly produced cytopathic effects on mosquito and hamster cells. In addition, it was lethal to neonatal mice if inoculated intracerebrally. Serologically, XJ-160 reacted with and was neutralized by an anti-Sindbis antibody. Anti-XJ-160 antibodies were found in several cohorts of Chinese subjects. The complete 11626-base nucleotide sequence of XJ-160 was determined. XJ-160 has diverged significantly from the prototype Sindbis virus, with an 18% difference in nucleotide sequence and an 8.6% difference in amino acids; there are 11 deletions and 2 insertions, involving 99 nucleotides in total. XJ-160 is most closely linked to Kyzylagach virus isolated in Azerbaijan. Both belong to the African/European genetic lineage of Sindbis virus, albeit more distantly related to other members.
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Affiliation(s)
- G D Liang
- State Key Laboratory for Molecular Virology and Genetic Engineering, Institute of Virology, Chinese Academy of Preventive Medicine, Beijing, People's Republic of China
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15
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Abstract
Inductively coupled plasma mass spectrometry (ICP-MS) was used to determine 18 trace elements (Ba, Be, Bi, Cd, Co, Cs, Cu, La, Li, Mn, Mo, Pb, Rb, Sb, Sn, Sr, Tl, and Zn) in 55 human milk samples from 46 healthy mothers collected during lactation periods extending to 293 days after birth. Se was quantified by hydride generation atomic absorption spectrometry (HG-AAS). To test the accuracy and the precision of the analytical procedure, milk powder reference materials (BCR 063 and BCR 150) were analyzed. The results obtained by ICP-MS and HG-AAS showed good agreement with the certified values. Whenever available, trace element concentrations determined in the human milk samples were compared to reliable literature data. The concentrations of Be (< 0.05 to 0.9 microgram/kg), Bi (< 0.09 to 2.0 micrograms/kg), Cs (1.7 to 7.7 micrograms/kg), La (< 0.05 to 3.7 micrograms/kg), Rb (440 to 1,620 micrograms/kg), and Tl (< 0.08 to 0.5 microgram/kg) are the first to be reported for human milk. The concentrations of the essential trace elements Cu (p < 0.005), Mn (p < 0.05), Mo (p < 0.0005), Se (p < 0.001), and Zn (p < 0.0005) significantly decreased and the concentrations of cobalt significantly increased (p < 0.005) in human milk during the course of lactation. All concentrations for the essential trace element tin in the human milk samples were below the method detection limit of 0.3 microgram/kg. Among the not essential and toxic elements-with the exception of Ba, Pb, and Tl-the trend toward lower concentrations with continuing lactation is much less pronounced than for the essential trace elements. With the exception of Se, the daily intakes of essential trace elements of fully breast-fed infants are considerably lower than dietary recommendations.
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Affiliation(s)
- M Krachler
- Institute for Analytical Chemistry, Karl-Franzens-Universität Graz, Austria
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16
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Dong WR, Li J, Li FS. [Telomerase: a new target for drug design and gene therapy]. Sheng Li Ke Xue Jin Zhan 1997; 28:274-6. [PMID: 11038744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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17
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Li FS. [Effect of thoracentesis on arterial blood gas tension]. Zhonghua Jie He He Hu Xi Za Zhi 1990; 13:233-5, 256. [PMID: 2128620] [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: 12/30/2022]
Abstract
The effect of thoracentesis on arterial blood gas tension was studied in 30 patients with unilateral free pleural effusions of various causes. Arterial blood gases were measured before thoracentesis and at 20 minutes, two hours after the procedure. P(A-a)O2 was determined at the same time. The PaO2, PaCO2 and HCO3 showed significant decrease but the concurrent significant increase of the P(A-a)O2 before thoracentesis. The PaO2 showed increase and P(A-a)O2 decrease but the PaCO2 not changes after thoracentesis 20 minutes and two hours. The results suggested that pleural effusion might result in hypoxaemia and chronic compensated alkalosis.
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Affiliation(s)
- F S Li
- Department of Tuberculosis Affiliated Hospital, Chengde Medical College
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18
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Li FS. [Study of oxidative damage on mitochondrial membrane of myocardium deficient in selenium]. Zhonghua Bing Li Xue Za Zhi 1990; 19:136-8. [PMID: 2167777] [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: 12/30/2022]
Abstract
Keshan disease (KD) is an endemic cardiomyopathy with membrane damage of the myocardial mitochondria. This paper reports the results of feeding guinea pigs with a forage obtained from KD endemic area. The selenium (Se) content and glutathione peroxidase activity in blood, tissues, mitochondria, microsome and supernatant of myocardium and liver cells of the experimental group were decreased. Additionally, the activity of glutathione-S-transferase was also decreased to some extent, instead of being increased in normal cases, and the content of lipid peroxide and hydroperoxide was increased. At the same time, cardiolipin in mitochondria, and the activity of cytochrome C oxidase (CCO, an enzyme binding with mitochondrial membrane) were also reduced accompanied with oxidative damage and disorder of function of the membrane. Anyhow, when exogenous cardiolipin was added in the purified endemic CCO solution, it was capable of restoring CCO activity significantly. The significance of Se deficiency and unbalanced diet in pathogenesis of Keshan disease is discussed.
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Affiliation(s)
- F S Li
- Liaoning Institute of Basic Medical Sciences, Shenyang
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Li FS, Duan YJ, Yan SJ, Guan JY, Zou LM, Wei FC, Mong LY, Li L, Li SY. Presenile (early ageing) changes in tissues of Kaschin-Beck disease and its pathogenetic significance. Mech Ageing Dev 1990; 54:103-20. [PMID: 2362469 DOI: 10.1016/0047-6374(90)90059-o] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The selenium level and activity of glutathione peroxidase in blood of children living in Kaschin-Beck disease (KBD) endemic areas were lower than that in nonendemic areas. KBD children were deficient in selenium, their lipid components, structure and function of the red cell membrane and cartilage tissue were abnormal. That is, the phospholipid (PL) content in the tissues of the patient was less than that of the controls in endemic and non-endemic areas. Especially as the phosphatidylcholine (PC) content decreased significantly, but sphingomyelin (SM) increased, the molar ratio of SM/PC and cholesterol (Ch)/PL increased. Increase of acanthocyte content was seen under the electron microscope and the fragility of erythrocytes was also increased. It indicated that there were membrane defects and membrane damage in KBD. At the same time, the sulfation extent of mucopolysaccharides in cartilage of patients was lower, and the collagen content was higher than that of controls. The presenile changes in lipid composition, structure and function of biomembranes and cartilage metabolism of KBD are very significant in studies on the aetiological pathogenesis of KBD and other ageing diseases.
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Affiliation(s)
- F S Li
- Institute of Basic Medicine, Liaoning Academy of Medical Sciences, Shenyang, PR, China
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Li FS, Yang FR, Song JC, Gao H, Tang JQ, Zou CH, Hu BN, Wen SR, Qiu FX. Etiologic and serologic investigations of the 1980 epidemic of dengue fever on Hainan Island, China. Am J Trop Med Hyg 1986; 35:1051-4. [PMID: 3766851 DOI: 10.4269/ajtmh.1986.35.1051] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Virologic and seroepidemiologic studies were carried out during an epidemic of dengue fever on Hainan Island in 1980. Dengue 3 virus was isolated from 46 of 77 acute phase sera and from 1 of 10 pools of adult Aedes aegypti. Dengue 1 virus virus was isolated from a single acute phase serum. Seroepidemiologic investigations showed that 74% of healthy individuals in the epidemic area had antibody to dengue virus compared to 54% in an area where epidemic dengue had occurred in 1978, and less than or equal to 8% in nonepidemic areas. There were no significant differences in antibody prevalence for different sex and age groups.
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Li FS, Yan Y, Pan NS. [A follow-up investigation of 12 blood transfusion cases from HBsAg-positive donors]. Zhonghua Nei Ke Za Zhi 1986; 25:407-8, 444-5. [PMID: 3803056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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22
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Qiu FX, Tian Y, Xu AY, Liu JC, Li FS. RNA genome electrophoretic analysis of rotavirus from feces of epidemic adult diarrhoea occurring in Shandong Province, China. J Diarrhoeal Dis Res 1985; 3:73-7. [PMID: 2999216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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23
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Li FS, Wei FQ, Bai QF, Guan JY, Duan YJ, Zou LM, Zhao YH, Li L, Jin Q. [Metabolic changes in phospholipids in animals fed with low selenium]. Zhongguo Yao Li Xue Bao 1984; 5:269-73. [PMID: 6240905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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24
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Li FS, Wei FQ, Bai QF, Guan JY, Duan YJ, Zou LM, Zhao YH, Li L, Jin Q. [Metabolic changes of phospholipids in animals fed with low selenium]. Zhongguo Yao Li Xue Bao 1984; 5:269-73. [PMID: 6242222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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25
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Li FS, Zhang TL, Hu MH. Areae gastricae. Comparative pathologic and radiologic study on 50 human stomach specimens. Chin Med J (Engl) 1984; 97:885-92. [PMID: 6443283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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26
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Li FS. [Areae gastricae:correlation between pathologic and radiologic study on 50 surgically resected specimens of human stomach]. Zhonghua Fang She Xue Za Zhi 1984; 18:6-9. [PMID: 6236063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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27
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Li FS. [Plasma and erythrocyte levels of selenium and lipids in children with Keshan disease and their pathogenic significance]. Zhonghua Xin Xue Guan Bing Za Zhi 1983; 11:97-9. [PMID: 6628222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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