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Cai M, Bai D, Hou D, You Q, Wang W, Lu X, Gao J. Effectiveness of nonpharmacological multi-component intervention on depressive symptoms in patients with mild cognitive impairment and dementia: A systematic review and meta-analysis. Int J Ment Health Nurs 2024; 33:297-308. [PMID: 37937694 DOI: 10.1111/inm.13247] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 09/06/2023] [Accepted: 10/13/2023] [Indexed: 11/09/2023]
Abstract
Patients with mild cognitive impairment (MCI) and dementia are more prone to depression than people without MCI or dementia. Some studies have found nonpharmacological multi-component intervention to be more effective than single-component intervention in improving the condition of patients with MCI and dementia; however, their effect on depressive symptoms is still inconsistent. Therefore, it is necessary to explore the effectiveness of nonpharmacological multi-component intervention in improving depressive symptoms in patients with MCI and dementia. This review retrieved papers from PubMed, Embase, Cochrane Library, CINAHL, PsycINFO and CNKI. The retrieval time limit was set from 1 January 1990 to 25 November 2022. The PRISMA 2020 guideline was used to report the included studies. The result showed that nonpharmacological multi-component intervention could improve depressive symptoms in patients with MCI and dementia. Among them, nonpharmacological multi-component intervention with a duration of <6 months, physical and cognitive activities, or other activities had significant effects. However, each study differed in terms of specific measures, duration and frequency of intervention methods. Accordingly, more randomized controlled trials with larger samples are required to discover the best scheme for nonpharmacological multi-component intervention.
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Affiliation(s)
- Mingjin Cai
- School of Nursing, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Dingxi Bai
- School of Nursing, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Dongjiang Hou
- School of Medicine and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qian You
- School of Nursing, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Wei Wang
- School of Nursing, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xianying Lu
- School of Nursing, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jing Gao
- School of Nursing, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Fu H, Hou D, Xu R, You Q, Li H, Yang Q, Wang H, Gao J, Bai D. Risk prediction models for deep venous thrombosis in patients with acute stroke: A systematic review and meta-analysis. Int J Nurs Stud 2024; 149:104623. [PMID: 37944356 DOI: 10.1016/j.ijnurstu.2023.104623] [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: 03/04/2023] [Revised: 10/11/2023] [Accepted: 10/13/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND The number of risk prediction models for deep venous thrombosis (DVT) in patients with acute stroke is increasing, while the quality and applicability of these models in clinical practice and future research remain unknown. OBJECTIVE To systematically review published studies on risk prediction models for DVT in patients with acute stroke. DESIGN Systematic review and meta-analysis of observational studies. METHODS China National Knowledge Infrastructure (CNKI), Wanfang Database, China Science and Technology Journal Database (VIP), SinoMed, PubMed, Web of Science, The Cochrane Library, Cumulative Index to Nursing and Allied Health Literature (CINAHL) and Embase were searched from inception to November 7, 2022. Data from selected studies were extracted, including study design, data source, outcome definition, sample size, predictors, model development and performance. The Prediction Model Risk of Bias Assessment Tool (PROBAST) checklist was used to assess the risk of bias and applicability. RESULTS A total of 940 studies were retrieved, and after the selection process, nine prediction models from nine studies were included in this review. All studies utilized logistic regression to establish DVT risk prediction models. The incidence of DVT in patients with acute stroke ranged from 0.4 % to 28 %. The most frequently used predictors were D-dimer and age. The reported area under the curve (AUC) ranged from 0.70 to 0.912. All studies were found to have a high risk of bias, primarily due to inappropriate data sources and poor reporting of the analysis domain. The pooled AUC value of the five validated models was 0.76 (95 % confidence interval: 0.70-0.81), indicating a fair level of discrimination. CONCLUSION Although the included studies reported a certain level of discrimination in the prediction models of DVT in patients with acute stroke, all of them were found to have a high risk of bias according to the PROBAST checklist. Future studies should focus on developing new models with larger samples, rigorous study designs, and multicenter external validation. REGISTRATION The protocol for this study is registered with PROSPERO (registration number: CRD42022370287).
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Affiliation(s)
- Han Fu
- College of Nursing, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Dongjiang Hou
- College of Medicine and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ran Xu
- College of Nursing, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qian You
- College of Nursing, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hang Li
- College of Nursing, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qing Yang
- College of Nursing, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hao Wang
- College of Nursing, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jing Gao
- College of Nursing, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
| | - Dingxi Bai
- College of Nursing, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
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Chen L, Hou G, Zhang K, Li Z, Yang S, Qiu Y, Yuan Q, Hou D, Ye X. Percutaneous CT-Guided Microwave Ablation Combined with Vertebral Augmentation for Treatment of Painful Spinal Metastases. AJNR Am J Neuroradiol 2022; 43:501-506. [PMID: 35115308 PMCID: PMC8910789 DOI: 10.3174/ajnr.a7415] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 09/09/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND PURPOSE Percutaneous thermal ablation followed by vertebral augmentation is an emerging minimally invasive therapeutic alternative for the management of spinal metastases. This study aimed to retrospectively evaluate the effectiveness and safety of microwave ablation combined with vertebral augmentation for the treatment of painful vertebral metastases. MATERIALS AND METHODS Overall, 91 patients with 140 metastatic vertebrae who experienced refractory moderate-to-severe pain were treated with CT-guided microwave ablation and vertebral augmentation. Procedural effectiveness was determined using the visual analog scale, daily morphine consumption, and the Oswestry Disability Index preprocedurally and during follow-up. Local tumor control was assessed at follow-up imaging. RESULTS The procedure was technically successful in all patients. The median visual analog scale score and mean morphine dose were 6 (range, 4-10) and 77.8 (SD, 31.5) mg (range, 15-143 mg), preprocedurally; 5 (range 3-8) and 34.5 (SD, 23.8) mg (range, 0-88 mg) at 3 days; 4 (range, 2-7) and 28.7 (SD, 16.4) mg (range, 0-73 mg) at 1 week; 3 (range, 1-6) and 24.6 (SD, 13.2) mg (range, 0-70 mg) at 1 month; 3 (range, 1-6) and 21.70 (SD, 10.0) mg (range, 0-42 mg) at 3 months; and 3 (range, 1-8) and 21.0 (SD, 9.9) mg (range, 0-46 mg) at 6 months postprocedurally (all P < .05). A decrease in the Oswestry Disability Index score was also observed (P < .01). Local control was achieved in 94.8% of the treated metastatic vertebrae during the 6-month follow-up period. Asymptomatic cement leakage occurred in 42 (30%) treated vertebrae. A grade 3 neural injury was observed in 1 patient (1.1%). The patient's neurologic function returned to normal following treatment with mannitol, glucocorticoids, and radiation therapy. CONCLUSIONS This study demonstrates that percutaneous CT-guided microwave ablation combined with vertebral augmentation is a safe and effective minimally invasive intervention for the treatment of painful spinal metastases.
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Affiliation(s)
- L. Chen
- From the Departments of Oncology (L.C., K.Z., S.Y., Y.Q., Q.Y.)
| | | | - K. Zhang
- From the Departments of Oncology (L.C., K.Z., S.Y., Y.Q., Q.Y.)
| | - Z. Li
- Orthopedics (Z.L.), Tengzhou Central People’s Hospital Affiliated with Jining Medical University, Tengzhou, Shandong Province, China
| | - S. Yang
- From the Departments of Oncology (L.C., K.Z., S.Y., Y.Q., Q.Y.)
| | - Y. Qiu
- From the Departments of Oncology (L.C., K.Z., S.Y., Y.Q., Q.Y.)
| | - Q. Yuan
- From the Departments of Oncology (L.C., K.Z., S.Y., Y.Q., Q.Y.)
| | - D. Hou
- Department of Radiation Oncology (D.H.), Beijing Shijitan Hospital Affiliated with Capital Medical University, Haidian District, Beijing, China
| | - X. Ye
- Department of Minimally invasive Oncology (X.Y.), Shandong Provincial Qianfoshan Hospital, Jinan, Shandong Province, China
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Hou D, Cui T. Re: A radiomics study to predict invasive pulmonary adenocarcinoma appearing as pure ground-glass nodules. Clin Radiol 2021; 77:236-237. [PMID: 34969519 DOI: 10.1016/j.crad.2021.08.012] [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] [Received: 08/09/2021] [Accepted: 08/20/2021] [Indexed: 11/03/2022]
Affiliation(s)
- D Hou
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - T Cui
- Liao Ning Tumour Hospital, Shenyang, China.
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Wei D, Zeng S, Hou D, Zhou R, Xing C, Deng X, Yu L, Wang H, Deng Z, Weng S, Huang Z, He J. Community diversity and abundance of ammonia-oxidizing archaea and bacteria in shrimp pond sediment at different culture stages. J Appl Microbiol 2020; 130:1442-1455. [PMID: 33021028 DOI: 10.1111/jam.14846] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 08/25/2020] [Accepted: 09/02/2020] [Indexed: 02/06/2023]
Abstract
AIMS Ammonia oxidation is a significant process of nitrogen cycles in a lot of ecosystems sediments while there are few studies in shrimp culture pond (SCP) sediments. This paper attempted to explore the community diversity and abundance of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) in SCP sediments at different culture stages. METHODS AND RESULTS We collected SCP sediments and analysed the community diversity and abundance of AOA and bacteria in shrimp pond sediment at different culture stages using the ammonia monooxygenase (amoA) gene with quantitative PCR (qPCR) and 16S rRNA gene sequencing. The AOB-amoA gene abundance was showed higher than AOA-amoA gene abundance in SCP sediments on Day 50 and Day 60 after shrimp larvae introducing into the pond, and the diversity of AOA in SCP sediments was higher than that of AOB. The phylogenetic tree revealed that the most of AOA were the member of Nitrosopumilus and Nitrososphaera, and the majority of AOB sequences were clustered into Nitrosospira, Nitrosomonas clusters 6a and 7. The AOA community has close relationship with total organic carbon (TOC), pH, total phosphorus (TP), nitrate reductase, urease, acid phosphatase and β-glucosidase. The AOB community was related to TOC, C/N and nitrate reductase. CONCLUSIONS AOA and AOB play the different ecological roles in SCP sediments at different culture stages. SIGNIFICANCE AND IMPACT OF THE STUDY Our results suggested that the different community diversity and abundance of AOA and AOB in SCP sediments, which may improve our ecological cognition of shrimp culture stages in SCP ecosystems.
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Affiliation(s)
- D Wei
- State Key Laboratory of Biocontrol/Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences/School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China.,Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - S Zeng
- State Key Laboratory of Biocontrol/Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences/School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China.,Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - D Hou
- State Key Laboratory of Biocontrol/Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences/School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China.,Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - R Zhou
- State Key Laboratory of Biocontrol/Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences/School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China.,Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - C Xing
- State Key Laboratory of Biocontrol/Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences/School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - X Deng
- Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - L Yu
- State Key Laboratory of Biocontrol/Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences/School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China.,Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - H Wang
- State Key Laboratory of Biocontrol/Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences/School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Z Deng
- State Key Laboratory of Biocontrol/Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences/School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China.,Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - S Weng
- State Key Laboratory of Biocontrol/Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences/School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China.,Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - Z Huang
- State Key Laboratory of Biocontrol/Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences/School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China.,Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
| | - J He
- State Key Laboratory of Biocontrol/Southern Marine Sciences and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences/School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China.,Institute of Aquatic Economic Animals and Guangdong Province Key Laboratory for Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen University, Guangzhou, PR China
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Zhang X, Wang G, Wang H, Wang X, Ji T, Hou D, Wu J, Sun J, Zhu B. Spouses' perceptions of and attitudes toward female menopause: a mixed-methods systematic review. Climacteric 2020; 23:148-157. [PMID: 31933386 DOI: 10.1080/13697137.2019.1703937] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 10/25/2022]
Abstract
Objective: Menopausal women experience physical and psychological discomfort, which may be affected by their spouses' perceptions of and attitudes toward menopause. The purpose of this review is to summarize men's perceptions of and attitudes toward female menopause in different cultural contexts.Method: A sequential integrated design method was used in this mixed-methods systematic review. PubMed, Web of Science, PsycINFO, Cochrane, Embase, China National Knowledge Infrastructure, and the Wanfang database were searched. Studies on spousal perceptions of and attitudes toward female menopause were included in the analysis.Results: A total of 12 articles met the inclusion criteria. Men have little knowledge of menopause and health-care status. Men have different attitudes toward wives' changes during menopause. A large proportion of them cannot cope with these changes, possibly due to poor knowledge about menopause; aging and disease; psychological changes; religious and other internal factors; and external factors, including family life, work stress, and wives' menopausal symptoms. In addition, spouses' perceptions of and attitudes toward menopause may affect women's menopausal symptoms, attitudes toward menopause, and marriage relationships.Conclusion: Although there was little evidence, it seems that male spouses' perceptions of and attitudes toward female menopause are important factors affecting menopausal women's quality of life.
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Affiliation(s)
- X Zhang
- Physical Examination Center, Jilin University First Hospital, Changchun, China
| | - G Wang
- Physical Examination Center, Jilin University First Hospital, Changchun, China
| | - H Wang
- Urological Ward, Jilin University First Hospital, Changchun, China
| | - X Wang
- Cadre Ward, Jilin University First Hospital, Changchun, China
| | - T Ji
- Center for Cardiovascular Medicine, Jilin University First Hospital, Changchun, China
| | - D Hou
- Neuro-intensive Care Unit, Zhengzhou University First Affiliated Hospital, Zhengzhou, China
| | - J Wu
- Physical Examination Center, Jilin University First Hospital, Changchun, China
| | - J Sun
- School of Nursing, Jilin University, Changchun, China
| | - B Zhu
- School of Nursing, Jilin University, Changchun, China
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Huang P, Mao T, Yu Q, Cao Y, Yu J, Zhang G, Hou D. Classification of water contamination developed by 2-D Gabor wavelet analysis and support vector machine based on fluorescence spectroscopy. Opt Express 2019; 27:5461-5477. [PMID: 30876149 DOI: 10.1364/oe.27.005461] [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] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 01/13/2019] [Indexed: 06/09/2023]
Abstract
The identification of the specific categories of pollutants in the urban water supply system is necessary. Traditional detection methods are based mainly on common water quality indicators. However, inspecting these water quality indicators is made difficult by issues such as long analysis time, insufficient sensitivity, need for reagents, and generation of waste liquid. These problems hinder high-frequency water detection and monitoring. In this study, three-dimensional (3D) fluorescence spectroscopy is adopted as a monitoring method for water quality. An identification method based on two-dimensional (2D) Gabor wavelets and support vector machine (SVM) multi-classification is also proposed. The Delaunay triangulation method for interpolation is used to pre-process 3D fluorescence spectra and thereby eliminate Rayleigh scattering and Raman scattering. A 2D Gabor wavelet function generated by filters of different scales and rotation angles is proposed to extract the features of the spectra. The block statistics method, based on Gabor feature description, is employed to enhance the efficiency in describing spectra features. Then, multiple SVM classifiers are used in pollutant classification and recognition. By comparing the proposed method with principal component analysis, which is a commonly used feature extraction method, this study finds that the application of 2D Gabor wavelets and block statistics can effectively describe the characteristics of 3D fluorescence spectra. Moreover, 2D Gabor wavelets achieve high classification accuracy, especially for substances with closely positioned or overlapping characteristic peaks.
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Hou D, Huang Z, Zeng S, Liu J, Weng S, He J. Comparative analysis of the bacterial community compositions of the shrimp intestine, surrounding water and sediment. J Appl Microbiol 2018; 125:792-799. [PMID: 29777622 DOI: 10.1111/jam.13919] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 04/23/2018] [Accepted: 05/12/2018] [Indexed: 12/22/2022]
Abstract
AIMS To reveal the relationship of the bacterial communities in shrimp intestine and surrounding environments. METHODS AND RESULTS We examined bacterial communities in the intestine of pacific white shrimp, Litopenaeus vannamei, the surrounding water and sediment by high-throughput sequencing analysis. Sequences were clustered into operational taxonomic units (OTUs) at 97% similarity levels, which ranged from 4956 to 5976 in each sample. All OTUs were affiliated with at least 64 phyla. The 10 most abundant phyla were Proteobacteria, Cyanobacteria, Bacteroidetes, Chloroflexi, Firmicutes, Acidobacteria, Actinobacteria, Planctomycetes, Gemmatimonadetes and Verrucomicrobia. The relationship of bacterial communities in the intestine and the surroundings was also investigated. A total of 1395 OTUs shared in the three habitats, accounting for 80, 65 and 77% in the intestine, the surrounding water and sediment respectively. There were 352, 891, 833 unique OTUs in intestine, surrounding water and sediment. Welch's t-test analysis showed that the abundances of some taxa were significantly different between the shrimp intestine and surroundings. Unweighted pair-group method with arithmetic mean analysis revealed that there was a generally similar bacterial community composition in three environments. CONCLUSIONS These results showed that the bacterial compositions are mostly the same in shrimp intestine, water and sediment, but with different relative abundances of the bacterial communities. SIGNIFICANCE AND IMPACT OF THE STUDY This study provided valuable findings on the relationship of the bacterial communities in shrimp intestine, the surrounding water and sediment, which can expand our knowledge of the broad trend on bacterial community in shrimp cultural ecosystems.
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Affiliation(s)
- D Hou
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - Z Huang
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - S Zeng
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - J Liu
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Guangzhou, China
| | - S Weng
- School of Life Sciences, Sun Yat-sen University, Guangzhou, China
| | - J He
- State Key Laboratory of Biocontrol, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-sen University, Guangzhou, China.,School of Life Sciences, Sun Yat-sen University, Guangzhou, China
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Zhang W, Tan N, Hou D, Lin YW, Yan XM, Gao Y, He DX, Jiang M, Wang J. Preparation, adsorption and recognition properties of uranyl ion-imprinted marine facultative fungus mainly modified by phytic acid and tetraethyl silicate. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-5937-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Qin S, Gao X, Wang D, Li H, Liu C, Hou D, Nian W, Li X. Intrarectal Epinephrine Suspension May Protect Against Radiation Proctitis During Radiation Therapy for Prostate Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Ye P, Ren R, Kou Y, Sun F, Hu J, Chen S, Hou D. Direct loop gain and bandwidth measurement of phase-locked loop. Rev Sci Instrum 2017; 88:084704. [PMID: 28863632 DOI: 10.1063/1.4999648] [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] [Indexed: 06/07/2023]
Abstract
A simple and robust technique for directly measuring the loop gain and bandwidth of a phase-locked loop (PLL) is proposed. This technique can be used for the real-time measurement of the real loop gain in a closed PLL without breaking its locking state. The agreement of the measured loop gain and theoretical calculations proves the validity of the proposed measurement technique. This technique with a simple configuration can be easily expanded to other phase-locking systems whose loop gain and bandwidth should be measured precisely.
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Affiliation(s)
- P Ye
- Engineering College of Aeronautics and Astronautics, Air Force Engineering University, Xi'an 710038, China
| | - R Ren
- Sichuan Jiuzhou Electric Group Co., Ltd., Mianyang 621000, China
| | - Y Kou
- Engineering College of Aeronautics and Astronautics, Air Force Engineering University, Xi'an 710038, China
| | - F Sun
- Time & Frequency Research Center, The School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - J Hu
- Time & Frequency Research Center, The School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - S Chen
- ZTE Corporation, Shenzhen 518057, Guangdong, China
| | - D Hou
- Time & Frequency Research Center, The School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
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Friedman L, Hernandez B, Buchanan A, Dinh M, Cooper B, Hou D, Posner D, Kushida C, Yesavage J, Zeitzer JM. 0346 COGNITIVE AROUSAL IN OLDER INDIVIDUALS WITH INSOMNIA COMPLAINTS AROUSAL IN OLDER INDIVIDUALS WITH INSOMNIA COMPLAINTS. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Vohra RS, Pasquali S, Kirkham AJ, Marriott P, Johnstone M, Spreadborough P, Alderson D, Griffiths EA, Fenwick S, Elmasry M, Nunes Q, Kennedy D, Basit Khan R, Khan MAS, Magee CJ, Jones SM, Mason D, Parappally CP, Mathur P, Saunders M, Jamel S, Ul Haque S, Zafar S, Shiwani MH, Samuel N, Dar F, Jackson A, Lovett B, Dindyal S, Winter H, Fletcher T, Rahman S, Wheatley K, Nieto T, Ayaani S, Youssef H, Nijjar RS, Watkin H, Naumann D, Emeshi S, Sarmah PB, Lee K, Joji N, Heath J, Teasdale RL, Weerasinghe C, Needham PJ, Welbourn H, Forster L, Finch D, Blazeby JM, Robb W, McNair AGK, Hrycaiczuk A, Charalabopoulos A, Kadirkamanathan S, Tang CB, Jayanthi NVG, Noor N, Dobbins B, Cockbain AJ, Nilsen-Nunn A, Siqueira J, Pellen M, Cowley JB, Ho WM, Miu V, White TJ, Hodgkins KA, Kinghorn A, Tutton MG, Al-Abed YA, Menzies D, Ahmad A, Reed J, Khan S, Monk D, Vitone LJ, Murtaza G, Joel A, Brennan S, Shier D, Zhang C, Yoganathan T, Robinson SJ, McCallum IJD, Jones MJ, Elsayed M, Tuck L, Wayman J, Carney K, Aroori S, Hosie KB, Kimble A, Bunting DM, Fawole AS, Basheer M, Dave RV, Sarveswaran J, Jones E, Kendal C, Tilston MP, Gough M, Wallace T, Singh S, Downing J, Mockford KA, Issa E, Shah N, Chauhan N, Wilson TR, Forouzanfar A, Wild JRL, Nofal E, Bunnell C, Madbak K, Rao STV, Devoto L, Siddiqi N, Khawaja Z, Hewes JC, Gould L, Chambers A, Urriza Rodriguez D, Sen G, Robinson S, Carney K, Bartlett F, Rae DM, Stevenson TEJ, Sarvananthan K, Dwerryhouse SJ, Higgs SM, Old OJ, Hardy TJ, Shah R, Hornby ST, Keogh K, Frank L, Al-Akash M, Upchurch EA, Frame RJ, Hughes M, Jelley C, Weaver S, Roy S, Sillo TO, Galanopoulos G, Cuming T, Cunha P, Tayeh S, Kaptanis S, Heshaishi M, Eisawi A, Abayomi M, Ngu WS, Fleming K, Singh Bajwa D, Chitre V, Aryal K, Ferris P, Silva M, Lammy S, Mohamed S, Khawaja A, Hussain A, Ghazanfar MA, Bellini MI, Ebdewi H, Elshaer M, Gravante G, Drake B, Ogedegbe A, Mukherjee D, Arhi C, Giwa Nusrat Iqbal L, Watson NF, Kumar Aggarwal S, Orchard P, Villatoro E, Willson PD, Wa K, Mok 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S, Sinha S, Khan S, El-Hasani SS, Hussain AA, Bhattacharya V, Kansal N, Fasih T, Jackson C, Siddiqui MN, Chishti IA, Fordham IJ, Siddiqui Z, Bausbacher H, Geogloma I, Gurung K, Tsavellas G, Basynat P, Kiran Shrestha A, Basu S, Chhabra Mohan Harilingam A, Rabie M, Akhtar M, Kumar P, Jafferbhoy SF, Hussain N, Raza S, Haque M, Alam I, Aseem R, Patel S, Asad M, Booth MI, Ball WR, Wood CPJ, Pinho-Gomes AC, Kausar A, Rami Obeidallah M, Varghase J, Lodhia J, Bradley D, Rengifo C, Lindsay D, Gopalswamy S, Finlay I, Wardle S, Bullen N, Iftikhar SY, Awan A, Ahmed J, Leeder P, Fusai G, Bond-Smith G, Psica A, Puri Y, Hou D, Noble F, Szentpali K, Broadhurst J, Date R, Hossack MR, Li Goh Y, Turner P, Shetty V, Riera M, Macano CAW, Sukha A, Preston SR, Hoban JR, Puntis DJ, Williams SV, Krysztopik R, Kynaston J, Batt J, Doe M, Goscimski A, Jones GH, Smith SR, Hall C, Carty N, Ahmed J, Panteleimonitis S, Gunasekera RT, Sheel ARG, Lennon H, Hindley C, Reddy M, Kenny R, Elkheir N, McGlone ER, 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Shahin Y, Ali A, Luther A, Nicholson JA, Rajendran I, Boal M, Ritchie J. Population-based cohort study of variation in the use of emergency cholecystectomy for benign gallbladder diseases. Br J Surg 2016; 103:1716-1726. [PMID: 27748962 DOI: 10.1002/bjs.10288] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 06/21/2016] [Accepted: 07/06/2016] [Indexed: 01/05/2023]
Abstract
Abstract
Background
The aims of this prospective population-based cohort study were to identify the patient and hospital characteristics associated with emergency cholecystectomy, and the influences of these in determining variations between hospitals.
Methods
Data were collected for consecutive patients undergoing cholecystectomy in acute UK and Irish hospitals between 1 March and 1 May 2014. Potential explanatory variables influencing the performance of emergency cholecystectomy were analysed by means of multilevel, multivariable logistic regression modelling using a two-level hierarchical structure with patients (level 1) nested within hospitals (level 2).
Results
Data were collected on 4744 cholecystectomies from 165 hospitals. Increasing age, lower ASA fitness grade, biliary colic, the need for further imaging (magnetic retrograde cholangiopancreatography), endoscopic interventions (endoscopic retrograde cholangiopancreatography) and admission to a non-biliary centre significantly reduced the likelihood of an emergency cholecystectomy being performed. The multilevel model was used to calculate the probability of receiving an emergency cholecystectomy for a woman aged 40 years or over with an ASA grade of I or II and a BMI of at least 25·0 kg/m2, who presented with acute cholecystitis with an ultrasound scan showing a thick-walled gallbladder and a normal common bile duct. The mean predicted probability of receiving an emergency cholecystectomy was 0·52 (95 per cent c.i. 0·45 to 0·57). The predicted probabilities ranged from 0·02 to 0·95 across the 165 hospitals, demonstrating significant variation between hospitals.
Conclusion
Patients with similar characteristics presenting to different hospitals with acute gallbladder pathology do not receive comparable care.
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Affiliation(s)
| | - R S Vohra
- Trent Oesophago-Gastric Unit, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - S Pasquali
- Surgical Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
| | - A J Kirkham
- Cancer Research UK Clinical Trials Unit, University of Birmingham, Birmingham, UK
| | - P Marriott
- West Midlands Research Collaborative, Academic Department of Surgery, University of Birmingham, Birmingham, UK
| | - M Johnstone
- West Midlands Research Collaborative, Academic Department of Surgery, University of Birmingham, Birmingham, UK
| | - P Spreadborough
- West Midlands Research Collaborative, Academic Department of Surgery, University of Birmingham, Birmingham, UK
| | - D Alderson
- Academic Department of Surgery, University of Birmingham, Birmingham, UK
| | - E A Griffiths
- Department of Upper Gastrointestinal Surgery, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - S Fenwick
- Aintree University Hospital NHS Foundation Trust
| | - M Elmasry
- Aintree University Hospital NHS Foundation Trust
| | - Q Nunes
- Aintree University Hospital NHS Foundation Trust
| | - D Kennedy
- Aintree University Hospital NHS Foundation Trust
| | | | | | | | | | - D Mason
- Wirral University Teaching Hospital
| | | | | | | | - S Jamel
- Barnet and Chase Farm Hospital
| | | | - S Zafar
- Barnet and Chase Farm Hospital
| | | | - N Samuel
- Barnsley District General Hospital
| | - F Dar
- Barnsley District General Hospital
| | | | | | | | | | | | | | - K Wheatley
- Sandwell and West Birmingham Hospitals NHS Trust
| | - T Nieto
- Sandwell and West Birmingham Hospitals NHS Trust
| | - S Ayaani
- Sandwell and West Birmingham Hospitals NHS Trust
| | - H Youssef
- Heart of England Foundation NHS Trust
| | | | - H Watkin
- Heart of England Foundation NHS Trust
| | - D Naumann
- Heart of England Foundation NHS Trust
| | - S Emeshi
- Heart of England Foundation NHS Trust
| | | | - K Lee
- Heart of England Foundation NHS Trust
| | - N Joji
- Heart of England Foundation NHS Trust
| | - J Heath
- Blackpool Teaching Hospitals NHS Foundation Trust
| | - R L Teasdale
- Blackpool Teaching Hospitals NHS Foundation Trust
| | | | - P J Needham
- Bradford Teaching Hospitals NHS Foundation Trust
| | - H Welbourn
- Bradford Teaching Hospitals NHS Foundation Trust
| | - L Forster
- Bradford Teaching Hospitals NHS Foundation Trust
| | - D Finch
- Bradford Teaching Hospitals NHS Foundation Trust
| | | | - W Robb
- University Hospitals Bristol NHS Trust
| | | | | | | | | | | | | | | | - B Dobbins
- Calderdale and Huddersfield NHS Trust
| | | | | | | | - M Pellen
- Hull and East Yorkshire NHS Trust
| | | | - W-M Ho
- Hull and East Yorkshire NHS Trust
| | - V Miu
- Hull and East Yorkshire NHS Trust
| | - T J White
- Chesterfield Royal Hospital NHS Foundation Trust
| | - K A Hodgkins
- Chesterfield Royal Hospital NHS Foundation Trust
| | - A Kinghorn
- Chesterfield Royal Hospital NHS Foundation Trust
| | - M G Tutton
- Colchester Hospital University NHS Foundation Trust
| | - Y A Al-Abed
- Colchester Hospital University NHS Foundation Trust
| | - D Menzies
- Colchester Hospital University NHS Foundation Trust
| | - A Ahmad
- Colchester Hospital University NHS Foundation Trust
| | - J Reed
- Colchester Hospital University NHS Foundation Trust
| | - S Khan
- Colchester Hospital University NHS Foundation Trust
| | - D Monk
- Countess of Chester NHS Foundation Trust
| | - L J Vitone
- Countess of Chester NHS Foundation Trust
| | - G Murtaza
- Countess of Chester NHS Foundation Trust
| | - A Joel
- Countess of Chester NHS Foundation Trust
| | | | - D Shier
- Croydon Health Services NHS Trust
| | - C Zhang
- Croydon Health Services NHS Trust
| | | | | | | | - M J Jones
- North Cumbria University Hospitals Trust
| | - M Elsayed
- North Cumbria University Hospitals Trust
| | - L Tuck
- North Cumbria University Hospitals Trust
| | - J Wayman
- North Cumbria University Hospitals Trust
| | - K Carney
- North Cumbria University Hospitals Trust
| | | | | | | | | | | | | | | | | | | | | | - M P Tilston
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - M Gough
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - T Wallace
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - S Singh
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - J Downing
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - K A Mockford
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - E Issa
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - N Shah
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - N Chauhan
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - T R Wilson
- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
| | - A Forouzanfar
- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
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- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
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- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
| | - C Bunnell
- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
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- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
| | - S T V Rao
- Dorset County Hospital NHS Foundation Trust
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- Dorset County Hospital NHS Foundation Trust
| | - N Siddiqi
- Dorset County Hospital NHS Foundation Trust
| | - Z Khawaja
- Dorset County Hospital NHS Foundation Trust
| | | | | | | | | | | | | | | | | | - D M Rae
- Frimley Park Hospital NHS Trust
| | | | | | | | | | - O J Old
- Gloucestershire Hospitals NHS Trust
| | | | - R Shah
- Gloucestershire Hospitals NHS Trust
| | | | - K Keogh
- Gloucestershire Hospitals NHS Trust
| | - L Frank
- Gloucestershire Hospitals NHS Trust
| | - M Al-Akash
- Great Western Hospitals NHS Foundation Trust
| | | | - R J Frame
- Harrogate and District NHS Foundation Trust
| | - M Hughes
- Harrogate and District NHS Foundation Trust
| | - C Jelley
- Harrogate and District NHS Foundation Trust
| | | | | | | | | | - T Cuming
- Homerton University Hospital NHS Trust
| | - P Cunha
- Homerton University Hospital NHS Trust
| | - S Tayeh
- Homerton University Hospital NHS Trust
| | | | | | - A Eisawi
- Tees Hospitals NHS Foundation Trust
| | | | - W S Ngu
- Tees Hospitals NHS Foundation Trust
| | | | | | - V Chitre
- Paget University Hospitals NHS Foundation Trust
| | - K Aryal
- Paget University Hospitals NHS Foundation Trust
| | - P Ferris
- Paget University Hospitals NHS Foundation Trust
| | | | | | | | | | | | | | | | - H Ebdewi
- Kettering General Hospital NHS Foundation Trust
| | - M Elshaer
- Kettering General Hospital NHS Foundation Trust
| | - G Gravante
- Kettering General Hospital NHS Foundation Trust
| | - B Drake
- Kettering General Hospital NHS Foundation Trust
| | - A Ogedegbe
- Barking, Havering and Redbridge University Hospitals NHS Trust
| | - D Mukherjee
- Barking, Havering and Redbridge University Hospitals NHS Trust
| | - C Arhi
- Barking, Havering and Redbridge University Hospitals NHS Trust
| | | | | | | | | | | | | | - K Wa
- Kingston Hospital NHS Foundation Trust
| | - J Mok
- Kingston Hospital NHS Foundation Trust
| | - T Woodman
- Kingston Hospital NHS Foundation Trust
| | - J Deguara
- Kingston Hospital NHS Foundation Trust
| | - G Garcea
- University Hospitals of Leicester NHS Trust
| | - B I Babu
- University Hospitals of Leicester NHS Trust
| | | | - D Malde
- University Hospitals of Leicester NHS Trust
| | - D Lloyd
- University Hospitals of Leicester NHS Trust
| | | | - O Al-Taan
- University Hospitals of Leicester NHS Trust
| | - A Boddy
- University Hospitals of Leicester NHS Trust
| | - J P Slavin
- Leighton Hospital, Mid Cheshire Hospitals NHS Foundation Trust
| | - R P Jones
- Leighton Hospital, Mid Cheshire Hospitals NHS Foundation Trust
| | - L Ballance
- Leighton Hospital, Mid Cheshire Hospitals NHS Foundation Trust
| | - S Gerakopoulos
- Leighton Hospital, Mid Cheshire Hospitals NHS Foundation Trust
| | - P Jambulingam
- Luton and Dunstable University Hospital NHS Foundation Trust
| | - S Mansour
- Luton and Dunstable University Hospital NHS Foundation Trust
| | - N Sakai
- Luton and Dunstable University Hospital NHS Foundation Trust
| | - V Acharya
- Luton and Dunstable University Hospital NHS Foundation Trust
| | - M M Sadat
- Macclesfield District General Hospital
| | - L Karim
- Macclesfield District General Hospital
| | - D Larkin
- Macclesfield District General Hospital
| | - K Amin
- Macclesfield District General Hospital
| | - A Khan
- Central Manchester NHS Foundation Trust
| | - J Law
- Central Manchester NHS Foundation Trust
| | - S Jamdar
- Central Manchester NHS Foundation Trust
| | - S R Smith
- Central Manchester NHS Foundation Trust
| | - K Sampat
- Central Manchester NHS Foundation Trust
| | | | - M Manu
- Royal Wolverhampton Hospitals NHS Trust
| | | | - N S Malik
- Royal Wolverhampton Hospitals NHS Trust
| | - J Chang
- Royal Wolverhampton Hospitals NHS Trust
| | | | - M Lewis
- Norfolk and Norwich University Hospitals NHS Foundation Trust
| | - G P Roberts
- Norfolk and Norwich University Hospitals NHS Foundation Trust
| | - B Karavadra
- Norfolk and Norwich University Hospitals NHS Foundation Trust
| | - E Photi
- Norfolk and Norwich University Hospitals NHS Foundation Trust
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - J Hornsby
- North Tees and Hartlepool NHS Foundation Trust
| | | | | | - K Seymour
- Northumbria Healthcare NHS Foundation Trust
| | - S Robinson
- Northumbria Healthcare NHS Foundation Trust
| | - H Hawkins
- Northumbria Healthcare NHS Foundation Trust
| | - S Bawa
- Northumbria Healthcare NHS Foundation Trust
| | | | - A Reid
- Northumbria Healthcare NHS Foundation Trust
| | - P Wood
- Northumbria Healthcare NHS Foundation Trust
| | - J G Finch
- Northampton General Hospital NHS Trust
| | - J Parmar
- Northampton General Hospital NHS Trust
| | | | | | - A Al-Muhktar
- Sheffield Teaching Hospitals NHS Foundation Trust
| | - M Peterson
- Sheffield Teaching Hospitals NHS Foundation Trust
| | - A Majeed
- Sheffield Teaching Hospitals NHS Foundation Trust
| | | | | | - A Choy
- Peterborough City Hospital
| | | | - N Pore
- United Lincolnshire Hospitals NHS Trust
| | | | | | - C Taylor
- United Lincolnshire Hospitals NHS Trust
| | | | | | | | | | | | | | | | - S Tate
- Portsmouth Hospitals NHS Trust
| | | | | | - V Vijay
- The Princess Alexandra Hospital NHS Trust
| | | | - S Sinha
- The Princess Alexandra Hospital NHS Trust
| | - S Khan
- The Princess Alexandra Hospital NHS Trust
| | | | - A A Hussain
- King's College Hospital NHS Foundation Trust
| | | | - N Kansal
- Gateshead Health NHS Foundation Trust
| | - T Fasih
- Gateshead Health NHS Foundation Trust
| | - C Jackson
- Gateshead Health NHS Foundation Trust
| | | | | | | | | | | | | | - K Gurung
- Queen Elizabeth Hospital NHS Trust
| | - G Tsavellas
- East Kent Hospitals University NHS Foundation Trust
| | - P Basynat
- East Kent Hospitals University NHS Foundation Trust
| | | | - S Basu
- East Kent Hospitals University NHS Foundation Trust
| | | | - M Rabie
- East Kent Hospitals University NHS Foundation Trust
| | - M Akhtar
- East Kent Hospitals University NHS Foundation Trust
| | - P Kumar
- Burton Hospitals NHS Foundation Trust
| | | | - N Hussain
- Burton Hospitals NHS Foundation Trust
| | - S Raza
- Burton Hospitals NHS Foundation Trust
| | - M Haque
- Royal Albert Edward Infirmary, Wigan Wrightington and Leigh NHS Trust
| | - I Alam
- Royal Albert Edward Infirmary, Wigan Wrightington and Leigh NHS Trust
| | - R Aseem
- Royal Albert Edward Infirmary, Wigan Wrightington and Leigh NHS Trust
| | - S Patel
- Royal Albert Edward Infirmary, Wigan Wrightington and Leigh NHS Trust
| | - M Asad
- Royal Albert Edward Infirmary, Wigan Wrightington and Leigh NHS Trust
| | - M I Booth
- Royal Berkshire NHS Foundation Trust
| | - W R Ball
- Royal Berkshire NHS Foundation Trust
| | | | | | | | | | - J Varghase
- Royal Bolton Hospital NHS Foundation Trust
| | - J Lodhia
- Royal Bolton Hospital NHS Foundation Trust
| | - D Bradley
- Royal Bolton Hospital NHS Foundation Trust
| | - C Rengifo
- Royal Bolton Hospital NHS Foundation Trust
| | - D Lindsay
- Royal Bolton Hospital NHS Foundation Trust
| | | | | | | | | | | | - A Awan
- Royal Derby NHS Foundation Trust
| | - J Ahmed
- Royal Derby NHS Foundation Trust
| | - P Leeder
- Royal Derby NHS Foundation Trust
| | | | | | | | | | - D Hou
- Hampshire Hospital NHS Foundation Trust
| | - F Noble
- Hampshire Hospital NHS Foundation Trust
| | | | | | - R Date
- Lancashire Teaching Hospitals NHS Foundation Trust
| | - M R Hossack
- Lancashire Teaching Hospitals NHS Foundation Trust
| | - Y Li Goh
- Lancashire Teaching Hospitals NHS Foundation Trust
| | - P Turner
- Lancashire Teaching Hospitals NHS Foundation Trust
| | - V Shetty
- Lancashire Teaching Hospitals NHS Foundation Trust
| | | | | | | | - S R Preston
- Royal Surrey County Hospital NHS Foundation Trust
| | - J R Hoban
- Royal Surrey County Hospital NHS Foundation Trust
| | - D J Puntis
- Royal Surrey County Hospital NHS Foundation Trust
| | - S V Williams
- Royal Surrey County Hospital NHS Foundation Trust
| | | | | | - J Batt
- Royal United Hospital Bath NHS Trust
| | - M Doe
- Royal United Hospital Bath NHS Trust
| | | | | | | | - C Hall
- Salford Royal NHS Foundation Trust
| | - N Carty
- Salisbury Hospital Foundation Trust
| | - J Ahmed
- Salisbury Hospital Foundation Trust
| | | | | | | | - H Lennon
- Southport and Ormskirk Hospital NHS Trust
| | - C Hindley
- Southport and Ormskirk Hospital NHS Trust
| | - M Reddy
- St George's Healthcare NHS Trust
| | - R Kenny
- St George's Healthcare NHS Trust
| | | | | | | | - K Hancorn
- St Helens and Knowsley Teaching Hospitals NHS Trust
| | - A Hargreaves
- St Helens and Knowsley Teaching Hospitals NHS Trust
| | | | | | | | | | - P Ziprin
- Imperial College Healthcare NHS Trust
| | | | - G Yeldham
- Imperial College Healthcare NHS Trust
| | - E Read
- Imperial College Healthcare NHS Trust
| | | | | | | | | | - M A Khan
- Mid Staffordshire NHS Foundation Trust
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- Mid Staffordshire NHS Foundation Trust
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- City Hospitals Sunderland NHS Foundation Trust
| | - V Kanakala
- City Hospitals Sunderland NHS Foundation Trust
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- Tunbridge Wells and Maidstone NHS Trust
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- Tunbridge Wells and Maidstone NHS Trust
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- University Hospital Birmingham NHS Foundation Trust
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- University Hospital Birmingham NHS Foundation Trust
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- University Hospital Birmingham NHS Foundation Trust
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- University Hospital Birmingham NHS Foundation Trust
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- University Hospital Birmingham NHS Foundation Trust
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- University Hospital Coventry and Warwickshire NHS Trust
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- University Hospital Coventry and Warwickshire NHS Trust
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- University Hospital Coventry and Warwickshire NHS Trust
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- University Hospital of North Staffordshire NHS Trust
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- University Hospital of North Staffordshire NHS Trust
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- University Hospital of North Staffordshire NHS Trust
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- University Hospital Southampton NHS Foundation Trust
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- University Hospital Southampton NHS Foundation Trust
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- University Hospital Southampton NHS Foundation Trust
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- University Hospital Southampton NHS Foundation Trust
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- University Hospital South Manchester NHS Foundation Trust
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- University Hospital South Manchester NHS Foundation Trust
| | - K Newton
- University Hospital South Manchester NHS Foundation Trust
| | - J Mbuvi
- University Hospital South Manchester NHS Foundation Trust
| | - A Farooq
- Warrington and Halton Hospitals NHS Trust
| | | | - Z Zafrani
- Warrington and Halton Hospitals NHS Trust
| | - D Brett
- Warrington and Halton Hospitals NHS Trust
| | | | | | - J Barnes
- South Warwickshire NHS Foundation Trust
| | - M Cheung
- South Warwickshire NHS Foundation Trust
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- Worcestershire Acute Hospitals NHS Trust
| | - E Hamilton
- Worcestershire Acute Hospitals NHS Trust
| | - S Jaunoo
- Worcestershire Acute Hospitals NHS Trust
| | - R Padwick
- Worcestershire Acute Hospitals NHS Trust
| | - M Sayegh
- Western Sussex Hospitals NHS Foundation Trust
| | - R C Newton
- Western Sussex Hospitals NHS Foundation Trust
| | - M Hebbar
- Western Sussex Hospitals NHS Foundation Trust
| | - S F Farag
- Western Sussex Hospitals NHS Foundation Trust
| | | | | | | | - C Blane
- Yeovil District Hospital NHS Trust
| | - M Giles
- York Teaching Hospital NHS Foundation Trust
| | - M B Peter
- York Teaching Hospital NHS Foundation Trust
| | - N A Hirst
- York Teaching Hospital NHS Foundation Trust
| | - T Hossain
- York Teaching Hospital NHS Foundation Trust
| | - A Pannu
- York Teaching Hospital NHS Foundation Trust
| | | | | | - G W Taylor
- York Teaching Hospital NHS Foundation Trust
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- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - P Davey
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - C Jones
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - J M Clements
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - R Digney
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - W M Chan
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - S McCain
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - S Gull
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - A Janeczko
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - E Dorrian
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - A Harris
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - S Dawson
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - D Johnston
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - B McAree
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
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- University Hospital Limerick
| | | | - A D K Hill
- Louth County Hospital and Our Lady of Lourdes Hospital
| | - E Khogali
- Louth County Hospital and Our Lady of Lourdes Hospital
| | - W Shabo
- Louth County Hospital and Our Lady of Lourdes Hospital
| | - E Iskandar
- Louth County Hospital and Our Lady of Lourdes Hospital
| | | | | | | | | | | | | | | | | | - P Balfe
- St Luke's General Hospital Kilkenny
| | - M Lee
- St Luke's General Hospital Kilkenny
| | - D C Winter
- St Vincent's University and Private Hospitals, Dublin
| | - M E Kelly
- St Vincent's University and Private Hospitals, Dublin
| | - E Hoti
- St Vincent's University and Private Hospitals, Dublin
| | - D Maguire
- St Vincent's University and Private Hospitals, Dublin
| | - P Karunakaran
- St Vincent's University and Private Hospitals, Dublin
| | - J G Geoghegan
- St Vincent's University and Private Hospitals, Dublin
| | - S T Martin
- St Vincent's University and Private Hospitals, Dublin
| | - F McDermott
- St Vincent's University and Private Hospitals, Dublin
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - S Gibson
- Crosshouse Hospital, Ayrshire and Arran
| | | | - D G Vass
- Crosshouse Hospital, Ayrshire and Arran
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - H C C Lim
- Glangwili General and Prince Philip Hospital
| | - D Duke
- Glangwili General and Prince Philip Hospital
| | - T Ahmed
- Glangwili General and Prince Philip Hospital
| | - W D Beasley
- Glangwili General and Prince Philip Hospital
| | | | - G Maharaj
- Glangwili General and Prince Philip Hospital
| | - C Malcolm
- Glangwili General and Prince Philip Hospital
| | | | | | | | - R Radwan
- Morriston and Singleton Hospitals
| | | | - S Wood
- Princess of Wales Hospital
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14
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Li G, Hou S, Li Y, Liu S, Teng D, Hou D. Surveillance of gram-positive cocci infections and drug resistance. Cell Mol Biol (Noisy-le-grand) 2015; 61:90-93. [PMID: 26386666] [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] [Received: 07/07/2015] [Accepted: 09/07/2015] [Indexed: 06/05/2023]
Abstract
In this study, the prevalence of gram-positive cocci isolates and the characteristics of multiple drug resistances in patients were investigated. Antibiotic resistances were determined in the clinical microbiology laboratory with the methodology of the CLSI (2012). The software WHONET5.4 and SPSS13.0 were used for statistical analysis. There were a total of 6211 gram-positive cocci isolates, comprised of 2255 (36.3%) coagulase (-) staphylococci, 1277 (20.6%) staphylococci aureus, 1109 (17.9%) enterococcus faecalis, and 1045 (16.8%) enterococcus faecium. The proportion of Methicillin resistant staphylococcus aureus (MRSA) was 16.6% (212/1277). Methicillin resistant coagulase (-) staphylococci (MRCNS) was 14.1% (318/2255). There were no strains in isolated enterococci resistant to vancomycin, teicoplanin and linezolid. Among the majority of all monitored antibiotics, methicillin resistant staphylococci has much higher drug resistance rate than methicillin sensitive staphylococci (p<0.05). Enterococcus faecalis has higher multiple drug resistant rate than enterococcus faecium (p<0.01). This research may support the clinicians in prescribing antibiotics properly.
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Affiliation(s)
- G Li
- Hospital Affiliated to the Chinese Academy of Medical Sciences and Peking Union Medical College Office of Hospital Infection Beijing China
| | - S Hou
- New York University Department of mathematics New York USA
| | - Y Li
- Hospital Affiliated to the Chinese Academy of Medical Sciences and Peking Union Medical College The Fifth Department Beijing China
| | - S Liu
- Beijing Yanhua Hospital Office of Hospital Infection Beijing China
| | - D Teng
- Hospital Affiliated to the Chinese Academy of Medical Sciences and Peking Union Medical College Clinical Laboratory Beijing China
| | - D Hou
- Hospital Affiliated to the Chinese Academy of Medical Sciences and Peking Union Medical College Head and Neck department of Plastic Surgery Beijing China dianju_hou@126.com
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15
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Hou D, Chen F, Yang SK, Yan XM, Long W, Zhang W, Jia XH, Tan N. Study on uranium(VI) biosorption of marine-derived fungus treated by cetyltrimethyl ammonium bromide. J Radioanal Nucl Chem 2015. [DOI: 10.1007/s10967-015-4303-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Hou D, Lee CC, Yang Z, Schibli TR. Timing jitter characterization of mode-locked lasers with <1 zs/√Hz resolution using a simple optical heterodyne technique. Opt Lett 2015; 40:2985-2988. [PMID: 26125348 DOI: 10.1364/ol.40.002985] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Timing jitter characterization of free-running mode-locked lasers with an unprecedented resolution is demonstrated using an optical heterodyne technique. A highly sensitive timing jitter phase-discrimination signal with low-parasitic-amplitude sensitivity is achieved. Analytical and numerical methods are used to analyze the properties of the discrimination signal. For an experimental demonstration, we measure the timing jitter between two loosely synchronized mode-locked Er:Yb:glass lasers with 500-MHz fundamental repetition rates. The timing jitter-detection noise floor for a single mode-locked laser reaches 2.8×10(-13) fs(2)/Hz (∼530 ys/√Hz), and the integrated timing jitter is 16.3 as from 10 kHz to the Nyquist frequency (250 MHz). These results show that this approach can be a simpler alternative to the well-established balanced optical cross-correlation technique.
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17
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Ning B, Zhang SY, Hou D, Wu JT, Li ZB, Zhao JY. High-precision distribution of highly stable optical pulse trains with 8.8 × 10⁻¹⁹ instability. Sci Rep 2014; 4:5109. [PMID: 24870442 PMCID: PMC4037707 DOI: 10.1038/srep05109] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [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: 07/31/2013] [Accepted: 05/12/2014] [Indexed: 11/23/2022] Open
Abstract
The high-precision distribution of optical pulse trains via fibre links has had a considerable impact in many fields. In most published work, the accuracy is still fundamentally limited by unavoidable noise sources, such as thermal and shot noise from conventional photodiodes and thermal noise from mixers. Here, we demonstrate a new high-precision timing distribution system that uses a highly precise phase detector to obviously reduce the effect of these limitations. Instead of using photodiodes and microwave mixers, we use several fibre Sagnac-loop-based optical-microwave phase detectors (OM-PDs) to achieve optical-electrical conversion and phase measurements, thereby suppressing the sources of noise and achieving ultra-high accuracy. The results of a distribution experiment using a 10-km fibre link indicate that our system exhibits a residual instability of 2.0 × 10−15 at1 s and8.8 × 10−19 at 40,000 s and an integrated timing jitter as low as 3.8 fs in a bandwidth of 1 Hz to 100 kHz. This low instability and timing jitter make it possible for our system to be used in the distribution of optical-clock signals or in applications that require extremely accurate frequency/time synchronisation.
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Affiliation(s)
- B Ning
- Department of Electronics, Peking University, Beijing 100871, China, State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking University, Beijing 100871, China
| | - S Y Zhang
- Department of Electronics, Peking University, Beijing 100871, China, State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking University, Beijing 100871, China
| | - D Hou
- Department of Electronics, Peking University, Beijing 100871, China, State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking University, Beijing 100871, China
| | - J T Wu
- Department of Electronics, Peking University, Beijing 100871, China, State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking University, Beijing 100871, China
| | - Z B Li
- Department of Electronics, Peking University, Beijing 100871, China, State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking University, Beijing 100871, China
| | - J Y Zhao
- Department of Electronics, Peking University, Beijing 100871, China, State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking University, Beijing 100871, China
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18
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Hou D, Xie XP, Zhang YL, Wu JT, Chen ZY, Zhao JY. Highly stable wideband microwave extraction by synchronizing widely tunable optoelectronic oscillator with optical frequency comb. Sci Rep 2013; 3:3509. [PMID: 24336459 PMCID: PMC3863813 DOI: 10.1038/srep03509] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [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: 07/17/2013] [Accepted: 11/29/2013] [Indexed: 12/04/2022] Open
Abstract
Optical frequency combs (OFCs), based on mode-locked lasers (MLLs), have attracted considerable attention in many fields over recent years. Among the applications of OFCs, one of the most challenging works is the extraction of a highly stable microwave with low phase noise. Many synchronisation schemes have been exploited to synchronise an electronic oscillator with the pulse train from a MLL, helping to extract an ultra-stable microwave. Here, we demonstrate novel wideband microwave extraction from a stable OFC by synchronising a single widely tunable optoelectronic oscillator (OEO) with an OFC at different harmonic frequencies, using an optical phase detection technique. The tunable range of the proposed microwave extraction extends from 2 GHz to 4 GHz, and in a long-term synchronisation experiment over 12 hours, the proposed synchronisation scheme provided a rms timing drift of 18 fs and frequency instabilities at 1.2 × 10−15/1 s and 2.2 × 10−18/10000 s.
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Affiliation(s)
- D Hou
- Department of Electronics, Peking University, Beijing 100871, China, State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking University, Beijing 100871, China
| | - X P Xie
- Department of Electronics, Peking University, Beijing 100871, China, State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking University, Beijing 100871, China
| | - Y L Zhang
- Department of Electronics, Peking University, Beijing 100871, China, State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking University, Beijing 100871, China
| | - J T Wu
- Department of Electronics, Peking University, Beijing 100871, China, State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking University, Beijing 100871, China
| | - Z Y Chen
- Department of Electronics, Peking University, Beijing 100871, China, State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking University, Beijing 100871, China
| | - J Y Zhao
- Department of Electronics, Peking University, Beijing 100871, China, State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking University, Beijing 100871, China
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19
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Xi B, Shen Y, Zhao X, Chandak GR, Cheng H, Hou D, Li Y, Ott J, Zhang Y, Wang X, Mi J. Association of common variants in/near six genes (ATP2B1, CSK, MTHFR, CYP17A1, STK39 and FGF5) with blood pressure/hypertension risk in Chinese children. J Hum Hypertens 2013; 28:32-6. [PMID: 23759979 DOI: 10.1038/jhh.2013.50] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 03/18/2013] [Accepted: 03/20/2013] [Indexed: 01/11/2023]
Abstract
Recent genome-wide association studies have identified several single-nucleotide polymorphisms (SNPs) that are associated with blood pressure (BP)/hypertension. In this study, we aimed to examine the established associations amongst Chinese children. We genotyped six SNPs (ATP2B1 rs17249754, CSK rs1378942, MTHFR rs1801133, CYP17A1 rs1004467, STK39 rs3754777 and FGF5 rs16998073) in Chinese children (N=3077, age range, 6-18 years). Based on the Chinese age- and sex-specific BP standards, 619 hypertensive cases and 2458 controls with normal BP were identified. Of the six SNPs, only ATP2B1 rs17249754 SNP was significantly associated with the risk of hypertension (allelic odds ratio (OR)=1.25, 95% confidence interval (CI): 1.08-1.44, P=0.003). Although all other SNPs showed a trend towards increasing the BP values and risk of hypertension, there was no statistically significant association after false discovery rate analysis. We calculated the weighted risk score using six SNPs, for systolic BP (SBP), diastolic BP (DBP) and hypertension. Each additional weighted risk score was associated with SBP by 1.18 mm Hg (95% CI=0.62-1.73, P<0.001), but not with the DBP (β=0.28, 95% CI=(-0.15)-0.74), and overall increased the risk of hypertension by 1.19-fold (95% CI=1.04-1.35, P=0.01). The present study confirmed the significant association of ATP2B1 rs17249754 with risk of hypertension among Chinese children, but failed to replicate the association of CSK rs1378942, MTHFR rs1801133, CYP17A1 rs1004467, STK39 rs3754777 and FGF5 rs16998073 with BP/risk of hypertension.
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Affiliation(s)
- B Xi
- 1] Department of Epidemiology, Capital Institute of Pediatrics, Beijing, China [2] Department of Maternal and Child Health Care, School of Public Health, Shandong University, Jinan, China
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20
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Kikkawa T, Uchida K, Shiomi Y, Qiu Z, Hou D, Tian D, Nakayama H, Jin XF, Saitoh E. Longitudinal spin Seebeck effect free from the proximity Nernst effect. Phys Rev Lett 2013; 110:067207. [PMID: 23432302 DOI: 10.1103/physrevlett.110.067207] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Indexed: 06/01/2023]
Abstract
This Letter provides evidence for intrinsic longitudinal spin Seebeck effects (LSSEs) that are free from the anomalous Nernst effect (ANE) caused by an extrinsic proximity effect. We report the observation of LSSEs in Au/Y(3)Fe(5)O(12) (YIG) and Pt/Cu/YIG systems, showing that the LSSE appears even when the mechanism of the proximity ANE is clearly removed. In the conventional Pt/YIG structure, furthermore, we separate the LSSE from the ANE by comparing the voltages in different magnetization and temperature-gradient configurations; the ANE contamination was found to be negligibly small even in the Pt/YIG structure.
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Affiliation(s)
- T Kikkawa
- Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
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21
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Zheng W, Feng X, Qiu L, Pan Z, Wang R, Lin S, Hou D, Jin L, Li Y. Identification of the antibiotic ionomycin as an unexpected peroxisome proliferator-activated receptor γ (PPARγ) ligand with a unique binding mode and effective glucose-lowering activity in a mouse model of diabetes. Diabetologia 2013. [PMID: 23178929 DOI: 10.1007/s00125-012-2777-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIMS/HYPOTHESIS Existing thiazolidinedione (TZD) drugs for diabetes have severe side effects. The aim of this study is to develop alternative peroxisome proliferator-activated receptor γ (PPARγ) ligands that retain the benefits in improving insulin resistance but with reduced side effects. METHODS We used AlphaScreen assay to screen for new PPARγ ligands from compound libraries. In vitro biochemical binding affinity assay and in vivo cell-based reporter assay were used to validate ionomycin as a partial ligand of PPARγ. A mouse model of diabetes was used to assess the effects of ionomycin in improving insulin sensitivity. Crystal structure of PPARγ complexed with ionomycin revealed the unique binding mode of ionomycin, which elucidated the molecular mechanisms allowing the discrimination of ionomycin from TZDs. RESULTS We found that the antibiotic ionomycin is a novel modulating ligand for PPARγ. Both the transactivation and binding activity of PPARγ by ionomycin can be blocked by PPARγ specific antagonist GW9662. Ionomycin interacts with the PPARγ ligand-binding domain in a unique binding mode with properties and epitopes distinct from those of TZD drugs. Ionomycin treatment effectively improved hyperglycaemia and insulin resistance, but had reduced side effects compared with TZDs in the mouse model of diabetes. In addition, ionomycin effectively blocked the phosphorylation of PPARγ at Ser273 by cyclin-dependent kinase 5 both in vitro and in vivo. CONCLUSIONS/INTERPRETATION Our studies suggest that ionomycin may represent a unique template for designing novel PPARγ ligands with advantages over current TZD drugs.
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Affiliation(s)
- W Zheng
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Fujian, China
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22
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Nanka O, Krejci E, Pesevski Z, Sedmera D, Smart N, Rossdeutsch A, Dube KN, Riegler J, Price AN, Taylor A, Muthurangu V, Turner M, Lythgoe MF, Riley PR, Kryvorot S, Vladimirskaya T, Shved I, Schwarzl M, Seiler S, Huber S, Steendijk P, Maechler H, Truschnig-Wilders M, Pieske B, Post H, Caprio C, Baldini A, Chiavacci E, Dolfi L, Verduci L, Meghini F, Cremisi F, Pitto L, Kuan TC, Chen MC, Yang TH, Wu WT, Lin CS, Rai H, Kumar S, Sharma AK, Mastana S, Kapoor A, Pandey CM, Agrawal S, Sinha N, Orlowska-Baranowska EH, Placha G, Gora J, Baranowski R, Abramczuk E, Hryniewiecki T, Gaciong Z, Verschuren JJW, Wessels JAM, Trompet S, Stott DJ, Sattar N, Buckley B, Guchelaar HJ, Jukema JW, Gharanei M, Hussain A, Mee CJ, Maddock HL, Wijnen WJ, Van Den Oever S, Van Der Made I, Hiller M, Tijsen AJ, Pinto YM, Creemers EE, Nikulina SUY, Chernova A, Petry A, Rzymski T, Kracun D, Riess F, Pike L, Harris AL, Gorlach A, Katare R, Oikawa A, Riu F, Beltrami AP, Cesseli D, Emanueli C, Madeddu P, Zaglia T, Milan G, Franzoso M, Pesce P, Sarais C, Sandri M, Mongillo M, Butler TJ, Seymour AML, Ashford D, Jaffre F, Bussen M, Ferrara N, Koch WJ, Leosco D, Akhmedov A, Klingenberg R, Brokopp C, Hof D, Zoller S, Corti R, Gay S, Flohrschutz I, Von Eckardstein A, Hoerstrup SP, Luescher TF, Heijman J, Zaza A, Johnson DM, Rudy Y, Peeters RLM, Volders PGA, Westra RL, Martin GR, Morais CAS, Oliveira SHV, Brandao FC, Gomes IF, Lima LM, Fujita S, Okamoto R, Taniguchi M, Konishi K, Goto I, Engelhardt S, Sugimoto K, Nakamura M, Shiraki K, Buechler C, Ito M, Kararigas G, Nguyen BT, Jarry H, Regitz-Zagrosek V, Van Bilsen M, Daniels A, Munts C, Janssen BJA, Van Der Vusse GJ, Van Nieuwenhoven FA, Montalvo C, Villar AV, Merino D, Garcia R, Llano M, Ares M, Hurle MA, Nistal JF, Dembinska-Kiec A, Beata Kiec-Wilk BKW, Anna Polus AP, Urszula Czech UC, Tatiana Konovaleva TK, Gerd Schmitz GS, Bertrand L, Balteau M, Timmermans A, Viollet B, Sakamoto K, Feron O, Horman S, Vanoverschelde JL, Beauloye C, De Meester C, Martinez E, Martin R, Miana M, Jurado R, Gomez-Hurtado N, Bartolome MV, San Roman JA, Lahera V, Nieto ML, Cachofeiro V, Rochais F, Sturny R, Mesbah K, Miquerol L, Kelly RG, Messaoudi S, Gravez B, Tarjus A, Pelloux V, Samuel JL, Delcayre C, Launay JM, Clement K, Farman N, Jaisser F, Hadyanto L, Castellani C, Vescovo G, Ravara B, Tavano R, Pozzobon M, De Coppi P, Papini E, Vettor R, Thiene G, Angelini A, Meloni M, Caporali A, Cesselli D, Fortunato O, Avolio E, Madeddu P, Beltrami AP, Emanueli C, Schindler R, Simrick S, Brand T, Dube KN, Riley PR, Smart NS, Oikawa A, Katare R, Herman A, Emanueli C, Madeddu P, Roura Ferrer S, Rodriguez Bago J, Soler-Botija C, Pujal JM, Galvez-Monton C, Prat-Vidal C, Llucia-Valldeperas A, Blanco J, Bayes-Genis A, Foldes G, Maxime M, Ali NN, Schneider MD, Harding SE, Reni C, Mangialardi G, Caporali A, Meloni M, Emanueli C, Madeddu P, De Pauw A, Sekkali B, Friart A, Ding H, Graffeuil A, Catalucci D, Balligand JL, Azibani F, Tournoux F, Schlossarek S, Polidano E, Fazal L, Merval R, Carrier L, Chatziantoniou C, Samuel JL, Delcayre C, Buyandelger B, Linke W, Zou P, Kostin S, Ku C, Felkin L, Birks E, Barton P, Sattler M, Knoell R, Schroder K, Benkhoff S, Shimokawa H, Grisk O, Brandes RP, Parepa IR, Mazilu L, Suceveanu AI, Suceveanu A, Rusali L, Cojocaru L, Matei L, Toringhibel M, Craiu E, Pires AL, Pinho M, Pinho S, Sena C, Seica R, Leite-Moreira A, Zaglia T, Milan G, Franzoso M, Dabroi F, Pesce P, Schiaffino S, Sandri M, Mongillo M, Kiseleva E, Krukov N, Nikitin O, Ardatova L, Mourouzis I, Pantos C, Kokkinos AD, Cokkinos DV, Scoditti E, Massaro M, Carluccio MA, Pellegrino M, Calabriso N, Gastaldelli A, Storelli C, De Caterina R, Lindner D, Zietsch C, Schultheiss HP, Tschope C, Westermann D, Everaert BR, Nijenhuis VJ, Reith FCM, Hoymans VY, Timmermans JP, Vrints CJ, Simova I, Mateev H, Katova T, Haralanov L, Dimitrov N, Mironov N, Golitsyn SP, Sokolov SF, Yuricheva YUA, Maikov EB, Shlevkov NB, Rosenstraukh LV, Chazov EI, Radosinska J, Knezl V, Benova T, Slezak J, Urban L, Tribulova N, Virag L, Kristof A, Kohajda ZS, Szel T, Husti Z, Baczko I, Jost N, Varro A, Sarusi A, Farkas AS, Orosz SZ, Forster T, Varro A, Farkas A, Zakhrabova-Zwiauer OM, Hardziyenka M, Nieuwland R, Tan HL, Raaijmakers AJA, Bourgonje VJA, Kok GJM, Van Veen AAB, Anderson ME, Vos MA, Bierhuizen MFA, Benes J, Sebestova B, Sedmera D, Ghouri IA, Kemi OJ, Kelly A, Burton FL, Smith GL, Bourgonje VJA, Vos MA, Ozdemir S, Acsai K, Doisne N, Van Der Nagel R, Beekman HDM, Van Veen TAB, Sipido KR, Antoons G, Harmer SC, Mohal JS, Kemp D, Tinker A, Beech D, Burley DS, Cox CD, Wann KT, Baxter GF, Wilders R, Verkerk A, Fragkiadaki P, Germanakis G, Tsarouchas K, Tsitsimpikou C, Tsardi M, George D, Tsatsakis A, Rodrigues P, Barros C, Najmi AK, Khan V, Akhtar M, Pillai KK, Mujeeb M, Aqil M, Bayliss CR, Messer AE, Leung MC, Ward D, Van Der Velden J, Poggesi C, Redwood CS, Marston S, Vite A, Gandjbakhch E, Gary F, Fressart V, Leprince P, Fontaine G, Komajda M, Charron P, Villard E, Falcao-Pires I, Gavina C, Hamdani N, Van Der Velden J, Stienen GJM, Niessens HWM, Leite-Moreira AF, Paulus WJ, Messer AE, Marston S, Memo M, Leung MC, Bayliss CR, Memo M, Messer AE, Marston SB, Vafiadaki E, Qian J, Arvanitis DA, Sanoudou D, Kranias EG, Elmstedt N, Lind B, Ferm-Widlund K, Westgren M, Brodin LA, Mansfield C, West T, Ferenczi M, Wijnker PJM, Foster DB, Coulter A, Frazier A, Murphy AM, Stienen GJM, Van Der Velden J, Shah M, Sikkel MB, Desplantez T, Collins TP, O' Gara P, Harding SE, Lyon AR, Macleod KT, Ottesen AH, Louch WE, Carlson C, Landsverk OJB, Stridsberg M, Sjaastad I, Oie E, Omland T, Christensen G, Rosjo H, Cartledge J, Clark LA, Ibrahim M, Siedlecka U, Navaratnarajah M, Yacoub MH, Camelliti P, Terracciano CM, Chester A, Gonzalez-Tendero A, Torre I, Garcia-Garcia F, Dopazo J, Gratacos E, Taylor D, Bhandari S, Seymour AM, Fliegner D, Jost J, Bugger H, Ventura-Clapier R, Regitz-Zagrosek V, Carpi A, Campesan M, Canton M, Menabo R, Pelicci PG, Giorgio M, Di Lisa F, Hancock M, Venturini A, Al-Shanti N, Stewart C, Ascione R, Angelini G, Suleiman MS, Kravchuk E, Grineva E, Galagudza M, Kostareva A, Bairamov A, Krychtiuk KA, Watzke L, Kaun C, Demyanets S, Pisoni J, Kastl SP, Huber K, Maurer G, Wojta J, Speidl WS, Varga ZV, Farago N, Zvara A, Kocsis GF, Pipicz M, Csonka C, Csont T, Puskas GL, Ferdinandy P, Klevstigova M, Silhavy J, Manakov D, Papousek F, Novotny J, Pravenec M, Kolar F, Novakova O, Novak F, Neckar J, Barallobre-Barreiro J, Didangelos A, Yin X, Fernandez-Caggiano M, Drozdov I, Willeit P, Domenech N, Mayr M, Lemoine S, Allouche S, Coulbault L, Galera P, Gerard JL, Hanouz JL, Suveren E, Whiteman M, Baxter GF, Studneva IM, Pisarenko O, Shulzhenko V, Serebryakova L, Tskitishvili O, Timoshin A, Fauconnier J, Meli AC, Thireau J, Roberge S, Lompre AM, Jacotot E, Marks AM, Lacampagne A, Dietel B, Altendorf R, Daniel WG, Kollmar R, Garlichs CD, Verduci L, Parente V, Balasso S, Pompilio G, Colombo G, Milano G, Squadroni L, Cotelli F, Pozzoli O, Capogrossi MC, Ajiro Y, Saegusa N, Iwade K, Giles WR, Stafforini DM, Spitzer KW, Sirohi R, Candilio L, Babu G, Roberts N, Lawrence D, Sheikh A, Kolvekar S, Yap J, Hausenloy DJ, Yellon DM, Aslam M, Rohrbach S, Schlueter KD, Piper HM, Noll T, Guenduez D, Malinova L, Ryabukho VP, Lyakin DV, Denisova TP, Montoro-Garcia S, Shantsila E, Lip GYH, Kalaska B, Sokolowska E, Kaminski K, Szczubialka K, Kramkowski K, Mogielnicki A, Nowakowska M, Buczko W, Stancheva N, Mekenyan E, Gospodinov K, Tisheva S, Darago A, Rutkai I, Kalasz J, Czikora A, Orosz P, Bjornson HD, Edes I, Papp Z, Toth A, Riches K, Warburton P, O'regan DJ, Ball SG, Turner NA, Wood IC, Porter KE, Kogaki S, Ishida H, Nawa N, Takahashi K, Baden H, Ichimori H, Uchikawa T, Mihara S, Miura K, Ozono K, Lugano R, Padro T, Garcia-Arguinzonis M, Badimon L, Yin X, Ferraro F, Viner R, Ho J, Cutler D, Mayr M, Matchkov V, Aalkjaer C, Mangialardi G, Katare R, Oikawa A, Madeddu P, Krijnen PAJ, Hahn NE, Kholova I, Sipkens JA, Van Alphen FP, Simsek S, Schalkwijk CG, Van Buul JD, Van Hinsbergh VWM, Niessen HWM, Simova I, Katova T, Haralanov L, Caro CG, Seneviratne A, Monaco C, Hou D, Singh J, Gilson P, Burke MG, Heraty KB, Krams R, Coppola G, Albrecht K, Schgoer W, Wiedemann D, Bonaros N, Steger C, Theurl M, Stanzl U, Kirchmair R, Amadesi S, Fortunato O, Reni C, Katare R, Meloni M, Ascione R, Spinetti G, Cangiano E, Valgimigli M, Madeddu P, Caporali A, Meloni M, Miller AM, Cardinali A, Vierlinger K, Fortunato O, Spinetti G, Madeddu P, Emanueli C, Pagano G, Liccardo D, Zincarelli C, Femminella GD, Lymperopoulos A, De Lucia C, Koch WJ, Leosco D, Rengo G, Hinkel R, Husada W, Trenkwalder T, Di Q, Lee S, Petersen B, Bock-Marquette I, Niemann H, Di Maio M, Kupatt C, Nourian M, Yassin Z, Kelishadi R, Nourian M, Kelishadi R, Yassin Z, Memarian SH, Heidari A, Leuner A, Poitz DM, Brunssen C, Ravens U, Strasser RH, Morawietz H, Vogt F, Grahl A, Flege C, Marx N, Borinski M, De Geest B, Jacobs F, Muthuramu I, Gordts SC, Van Craeyveld E, Herijgers P, Weinert S, Poitz DM, Medunjanin S, Herold J, Schmeisser A, Strasser RH, Braun-Dullaeus RC, Wagner AH, Moeller K, Adolph O, Schwarz M, Schwale C, Bruehl C, Nobiling R, Wieland T, Schneider SW, Hecker M, Cross A, Strom A, Cole J, Goddard M, Hultgardh-Nilsson A, Nilsson J, Mauri C, Monaco C, Mitkovskaya NP, Kurak TA, Oganova EG, Shkrebneva EI, Kot ZHN, Statkevich TV, Molica F, Burger F, Matter CM, Thomas A, Staub C, Zimmer A, Cravatt B, Pacher P, Steffens S, Blanco R, Sarmiento R, Parisi C, Fandino S, Blanco F, Gigena G, Szarfer J, Rodriguez A, Garcia Escudero A, Riccitelli MA, Wantha S, Simsekyilmaz S, Megens RT, Van Zandvoort MA, Liehn E, Zernecke A, Klee D, Weber C, Soehnlein O, Lima LM, Carvalho MG, Gomes KB, Santos IR, Sousa MO, Morais CAS, Oliveira SHV, Gomes IF, Brandao FC, Lamego MRA, Lima LM, Fornai L, Angelini A, Kiss A, Giskes F, Eijkel G, Fedrigo M, Valente ML, Thiene G, Heeren RMA, Grdinic A, Vojvodic D, Djukanovic N, Grdinic AG, Obradovic S, Majstorovic I, Rusovic S, Vucinic Z, Tavciovski D, Ostojic M, Lin CS, Kuan TC, Lai SC, Chen MY, Wu HT, Gouweleeuw L, Oberdorf-Maass SU, De Boer RA, Van Gilst WH, Maass AH, Van Gelder IC, Azibani F, Benard L, Schlossarek S, Merval R, Tournoux F, Launay JM, Carrier L, Chatziantoniou C, Samuel JL, Delcayre C, Li C, Warren D, Shanahan CM, Zhang QP, Bye A, Vettukattil R, Aspenes ST, Giskeodegaard G, Gribbestad IS, Wisloff U, Bathen TF, Cubedo J, Padro T, Alonso R, Mata P, Badimon L, Ivic I, Vamos Z, Cseplo P, Kosa D, Torok O, Hamar J, Koller A, Norita K, De Noronha SV, Sheppard MN, Torre I, Amat-Roldan I, Iruretagoiena I, Psilodimitrakopoulos S, Gonzalez-Tendero A, Crispi F, Artigas D, Loza-Alvarez P, Gratacos E, Harrison JC, Smart SD, Besely EH, Kelly JR, Yao Y, Sammut IA, Hoepfner M, Kuzyniak W, Sekhosana E, Hoffmann B, Litwinski C, Pries A, Ermilov E, Fontoura D, Lourenco AP, Vasques-Novoa F, Pinto JP, Roncon-Albuquerque R, Leite-Moreira AF, Oyeyipo IP, Olatunji LA, Usman TO, Olatunji VA, Bacova B, Radosinska J, Viczenczova C, Knezl V, Dosenko V, Benova T, Goncalvesova E, Vanrooyen J, Tribulova N, Maulik SK, Seth S, Dinda AK, Jaiswal A, Mearini G, Khajetoorians D, Kraemer E, Gedicke-Hornung C, Precigout G, Eschenhagen T, Voit T, Garcia L, Lorain S, Carrier L, Mendes-Ferreira P, Maia-Rocha C, Adao R, Lourenco AP, Cerqueira RJ, Mendes MJ, Castro-Chaves P, De Keulenaer GW, Leite-Moreira AF, Bras-Silva C, Ruiter G, Wong YY, Lubberink M, Knaapen P, Raijmakers P, Lammertsma AA, Marcus JT, Westerhof N, Van Der Laarse WJ, Vonk-Noordegraaf A, Poitz DM, Steinbronn N, Koch E, Steiner G, Strasser RH, Berezin A, Lisovaya OA, Soldatova AM, Kuznetcov VA, Yenina TN, Rychkov AYU, Shebeko PV, Altara R, Hessel MHM, Hermans JJR, Janssen BJA, Blankesteijn WM, Soldatova AM, Kuznetcov VA, Yenina TN, Rychkov AYU, Shebeko PV, Berezin A, Berezina TA, Seden V, Bonanad C, Nunez J, Navarro D, Chilet MF, Sanchis F, Bodi V, Minana G, Chaustre F, Forteza MJ, Llacer A, Femminella GD, Rengo G, Galasso G, Zincarelli C, Liccardo D, Pagano G, De Lucia C. Poster session 3. Cardiovasc Res 2012. [DOI: 10.1093/cvr/cvr336] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Affiliation(s)
- H Stunell
- Department of Radiology, Vancouver General Hospital, Vancouver, British Columbia, Canada.
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Jiang B, Guilcher A, Chowienczyk P, Hou D. P2.29 COMPARISON OF ARTERIAL AUGMENTATION INDICES OBTAINED BY ULTRASOUND WALL TRACKING AND ARTERIAL TONOMETRY. Artery Res 2012. [DOI: 10.1016/j.artres.2012.09.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Wu L, Xi B, Zhang M, Shen Y, Zhao X, Wang T, Cheng H, Hou D, Liu G, Wang X, Mi J. A sex-specific effect of the CYP17A1 SNP rs11191548 on blood pressure in Chinese children. J Hum Hypertens 2011; 26:731-6. [DOI: 10.1038/jhh.2011.96] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Sumida A, Nikanorov A, Shinke T, Li J, King S, Chronos N, Hou D. Paclitaxel-coated balloon study: quantitative coronary angiography and optical coherence tomography evaluation in a swine in-stent stenosis model. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Amin Parsa MH, Lange M, Hakim-Meibodi K, Piper C, Hou D, Gummert J, Horstkotte D. Detection of early bypass dysfunction after coronary artery bypass grafting using Troponin-I measurement. Thorac Cardiovasc Surg 2011. [DOI: 10.1055/s-0030-1268904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Jiang B, Chowienczyk P, Hou D, Zhou X. P4.13 RELATION OF AORTIC AUGMENTATION INDEX TO ARTERIAL AND VENTRICULAR PROPERTIES. Artery Res 2011. [DOI: 10.1016/j.artres.2011.10.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Chen J, Nakamura T, Matsumoto D, Chronos N, Hou D. e0041 Vasomotor function following newer generation of bare metal stent overstretch in a porcine coronary model. Heart 2010. [DOI: 10.1136/hrt.2010.208967.41] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Yao Z, Duan S, Hou D, Wang W, Wang G, Liu Y, Wen L, Wu M. B23 acts as a nucleolar stress sensor and promotes cell survival through its dynamic interaction with hnRNPU and hnRNPA1. Oncogene 2010; 29:1821-34. [DOI: 10.1038/onc.2009.473] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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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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Duan S, Yao Z, Zhu Y, Wang G, Hou D, Wen L, Wu M. The Pirh2-keratin 8/18 interaction modulates the cellular distribution of mitochondria and UV-induced apoptosis. Cell Death Differ 2009; 16:826-37. [PMID: 19282868 DOI: 10.1038/cdd.2009.12] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Intermediate filaments (IFs) provide crucial structural support in higher eukaryotic cells. Accumulating evidences show that IFs also participate in various cellular activities including stress responses, cell growth, cell death and cell migration through dynamic interactions with various non-structure proteins. Here we report the identification of Pirh2, a RING-H2-type ubiquitin E3 ligase, as a novel binding partner of the cytoplasmic IF proteins keratin 8/18 (K8/18). Phosphorylation of either Pirh2 or K8/18 affects their association. Although Pirh2 was not found to influence the stability of K8/18, it displayed an unexpected role in regulating the organization of the network of K8/18 keratin filaments. Disruption of Pirh2-K8/K18 interaction by either UV irradiation or knockdown with Pirh2 or K18 led to the aggregation of K8/18 keratin filaments. It further induced mitochondrial redistribution, and this process is likely through a microtubule-mediated pathway. The abnormal localization of mitochondria in Pirh2-knockdown cells may partially account for its increased cell sensitivity to UV-induced apoptosis, probably through enhancing the release of pro-apoptotic proteins, such as cytochrome c and Smac/DIABLO to the cytosol. Overall, our data reveal the novel role of the Pirh2-K8/18 complex in governing the distribution of mitochondria.
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Affiliation(s)
- S Duan
- Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Anhui, People's Republic of China
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Pendyala L, Shinke T, Li J, Chen J, Robinson K, Chronos N, Hou D. Vasorelaxation is impaired proximal and distal to paclitaxel-eluting stents. Cardiovascular Revascularization Medicine 2008. [DOI: 10.1016/j.carrev.2008.03.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Shinke T, Jabara R, Pendyala L, Li J, Abrutis A, Chen J, Venegoni A, Colley K, Klein R, Chronos N, Robinson K, Hou D. A novel thin-strut cobalt-chromium stent for inhibition of neointimal formation in a porcine coronary artery model. Cardiovascular Revascularization Medicine 2008. [DOI: 10.1016/j.carrev.2008.03.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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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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Hou D, Schumacher D. The selection of a commercial route for the D1 antagonist Sch-39166. Curr Opin Drug Discov Devel 2001; 4:792-9. [PMID: 11899619] [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: 02/24/2023]
Abstract
D1 Antagonists have been reported to be potentially useful in a number of therapeutic areas. Sch-39166 is an example of such a selective D1 antagonist. Three different routes based on (1S,2S)-1-phenyl-1,3-propanediol (19), (+)-L-homophenylalanine (27) or trans-(+)-(1R,2R)-2-hydroxy-1-(methylamino)-1,2,3,4-tetrahydronaphthalene (37) were developed for the commercial preparation of Sch-39166. After analyzing each route for the best combination of cost, yield, throughput and efficiency, the synthesis of Sch-39166 starting from 37, which involves the opening of an aziridinium, was selected for optimization into the commercial route.
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Affiliation(s)
- D Hou
- Rhodia ChiRex Inc, 383 Phoenixville Pike, Malvem, PA 19355, USA.
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37
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Hou D, Shi L. [Causes of death of the host of no. 2 Chu Grave in Baoshan, Jingmen, Hubei Province: a preliminary study]. Zhonghua Yi Shi Za Zhi 2001; 24:141-43. [PMID: 11639346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
On the bamboo slips found in the No. 2 Chu Grave unearthed in Baoshan, Jingmen, Hubei Province in 1986, there were records about its host, Shao Tuo, consulting a sorcerer for his disease from March 4 (Chu Calendar) 317 B.C. to May 7th (Chu calendar), 316 B.C. As a result of textual research on the name of disease recorded as heart disease, lower heart disease and abdominal heart disease; the symptoms such as short breath, upper abdominal distension and dropsy; the characteristics of the disease such as sudden and intermittent onset, more and more severe condition, relatively rapid death and so on, it is considered that Shao Tuo died of cardiac disease. The two possible reasons why Shao Tuo suffered from cardiac disease are also discussed.
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Stoll HP, Hutchins GD, Winkle WL, Nguyen AT, Hou D, Appledorn CR, Romeike B, March KL. Liquid-filled balloon brachytherapy using (68)Ga is effective and safe because of the short 68-minute half-life: results of a feasibility study in the porcine coronary overstretch model. Circulation 2001; 103:1793-8. [PMID: 11282912 DOI: 10.1161/01.cir.103.13.1793] [Citation(s) in RCA: 3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Liquid-filled balloons for coronary brachytherapy provide significant advantages over solid sources in dose homogeneity but carry the risk of life-threatening radiointoxication after balloon rupture and laboratory contamination in case of a spill. We hypothesized that the positron emitter (68)Ga, with a half-life of only 68 minutes, was well suited to overcome these safety obstacles while providing full therapeutic efficacy. METHODS AND RESULTS The feasibility, efficacy, and safety of (68)Ga liquid-filled balloon brachytherapy were investigated in the porcine coronary overstretch model. Four groups of 5 balloon-induced coronary lesions were irradiated with 8, 12, 16, and 24 Gy targeted to the adventitia. Ten unirradiated lesions served as controls. Segments treated with 16 or 24 Gy exhibited marked suppression of neointimal proliferation at 28-day follow-up, with quantitative parameters of intraluminal proliferation reduced to <20%. This beneficial effect was not compromised by untoward edge effects. Uninjured but irradiated vessels did not show histological signs of radiation damage. The (68)Ga whole-body dose due to balloon rupture was estimated to be 5 rem/50 mCi treatment activity and compared favorably with that of (188)Re (78 rem/50 mCi). CONCLUSIONS (68)Ga positron radiation suppresses neointimal proliferation at doses of 16 and 24 Gy. This biological efficacy, coupled with the attractive safety profile, suggests the selection of (68)Ga as an attractive isotope for liquid-filled balloon brachytherapy.
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Affiliation(s)
- H P Stoll
- Krannert Institute of Cardiology, Indianapolis, IN, USA.
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Mayo-Smith WW, Ngan KK, Hou D, Gupta H, Dupuy DE, Abbott GF. Digitizing your hard-copy teaching file with inexpensive, commercially available software. Acad Radiol 2001; 8:273-7. [PMID: 11249092 DOI: 10.1016/s1076-6332(03)80541-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- W W Mayo-Smith
- Brown University School of Medicine, Rhode Island Hospital, Providence, USA
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Sone M, Suzuki E, Hoshino M, Hou D, Kuromi H, Fukata M, Kuroda S, Kaibuchi K, Nabeshima Y, Hama C. Synaptic development is controlled in the periactive zones of Drosophila synapses. Development 2000; 127:4157-68. [PMID: 10976048 DOI: 10.1242/dev.127.19.4157] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.5] [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: 11/20/2022]
Abstract
A cell-adhesion molecule fasciclin 2 (FAS2), which is required for synaptic growth and still life (SIF), an activator of RAC, were found to localize in the surrounding region of the active zone, defining the periactive zone in Drosophila neuromuscular synapses. BetaPS integrin and discs large (DLG), both involved in synaptic development, also decorated the zone. However, shibire (SHI), the Drosophila dynamin that regulates endocytosis, was found in the distinct region. Mutant analyses showed that sif genetically interacted with Fas2 in synaptic growth and that the proper localization of SIF required FAS2, suggesting that they are components in related signaling pathways that locally function in the periactive zones. We propose that neurotransmission and synaptic growth are primarily regulated in segregated subcellular spaces, active zones and periactive zones, respectively.
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Affiliation(s)
- M Sone
- Department of Molecular Genetics, National Institute of Neuroscience, NCNP, Kodaira, Tokyo 187-8502, Japan
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Hou D, Rogers PI, Toleikis PM, Hunter W, March KL. Intrapericardial paclitaxel delivery inhibits neointimal proliferation and promotes arterial enlargement after porcine coronary overstretch. Circulation 2000; 102:1575-81. [PMID: 11004150 DOI: 10.1161/01.cir.102.13.1575] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Catheter-based intrapericardial (IPC) delivery of therapeutic agents has recently been demonstrated. Paclitaxel is known to inhibit vascular smooth muscle cell proliferation. This study examined the effect of IPC instillation of paclitaxel on neointimal proliferation after balloon overstretch of porcine coronary arteries. METHODS AND RESULTS Overstretch injury of coronary arteries was followed by IPC administration of micellar paclitaxel at low dose (LD, 10 mg; n=6) or high dose (HD, 50 mg; n=7) or of control micelles (50 mg, n=5). Animals were euthanized 28 days after balloon dilation. Arterial injury indices were no different among the groups. The neointimal area, maximal intimal thickness, and adventitial thickness were significantly reduced in both LD (0.47+/-0.04 mm(2), 0.43+/-0.03 mm, and 0.35+/-0.02 mm, respectively) and HD (0.51+/-0.06 mm(2), 0.42+/-0.03 mm, and 0. 38+/-0.03 mm, respectively) paclitaxel groups compared with the control group (0.79+/-0.07 mm(2), 0.56+/-0.02 mm, and 0.47+/-0.02 mm, respectively; P:<0.001). Meanwhile, the vessel circumference measured at the external elastic lamina of paclitaxel-treated vessels was significantly larger than the control circumference. Apoptotic cells were found in the neointima. The apoptotic cell percentage was not different between the control (1.72%) and LD (2. 31%) groups but was higher in the HD group (7.07%, P:<0.0001 versus control and LD groups). Immunostaining for matrix metalloproteinase-2 revealed concurrent reduction in the HD group compared with the control and LD groups. CONCLUSIONS IPC space delivery of a single dose of paclitaxel significantly reduces vessel narrowing in this balloon-overstretch model. This effect is mediated by reduction of neointimal mass as well as positive vascular remodeling.
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Affiliation(s)
- D Hou
- Indiana University School of Medicine, Indianapolis, IN, USA
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Yang W, Yang P, Hou D. [Analysis of complications of augmentation mammaplasty in 12 patients]. Zhonghua Zheng Xing Wai Ke Za Zhi 2000; 16:292-4. [PMID: 11593664] [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: 02/21/2023]
Abstract
OBJECTIVE To reduce complications and to improve the long-term results of augmentation mammaplasty. METHOD Twelve patients who had complications during a period of 1 to 13 years after augmentation mammaplasty were studied. The fibrous capsule of the breast implant was examined pathologically. RESULTS 12 patients (15 breasts) were included in the study. Of the nine patients with unilateral augmentation mammaplasty, four had 1 complication; four had 2 complications and one had 3 complications. Of the three patients with bilateral augmentation mammaplasty, two had the same complication, one had 3 complications. Every complication has its pathologic and clinical characteristics. CONCLUSION Many measures are important for reducing complications including strict surgical manipulation, proper selection of good implants, preferred submuscular insertion, whole capsulectomy for prosthesis rupture or leak and through hemostasis, proper bandage, massage and follow-up et al.
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Affiliation(s)
- W Yang
- Plastic Surgery Hospital, CAMS, Beijing 100041, China
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Hou D, Duan C, Zhang D. Grassland ecology and population growth: striking a balance. China Popul Today 2000; 17:27-8. [PMID: 12322589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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Abstract
Although the mechanism of myocardial failure following acute iron poisoning is not known, excess iron-catalyzed free radical generation is conjectured to play a role. The effects of time (0 to 360 minutes) on total iron concentrations, glutathione peroxidase activity, and cytotoxic aldehyde production in heart of mice (B6D2F1, n = 65) were first investigated following acute iron-loading (20 mg iron dextran i.p./mouse). In a subsequent experiment, the effects of dose (0 to 80 mg iron dextran i.p./mouse, n = 75) on the aforementioned parameters were investigated. Our results show that the concentrations of cytotoxic aldehydes: (1) significantly differ over-time, with corresponding increases in total concentrations of iron (r = 0.93, p < 0.001); and (2) increase parallel to the total dose of iron administered (r = 0.95, p < 0.001). Furthermore, dose-and time-dependent alterations to glutathione peroxidase activity are observed, which is most likely due to an acute up-regulation of the enzyme as an endogenous protective response to increased free radical activity in the heart subsequent to iron-loading. While no single mechanism is likely to account for the complex pathophysiology of acute iron-induced heart failure, our results shown that iron-loading can result in significant free radical generation, as quantified by cytotoxic aldehydes, in heart tissue of mice. This is the first report on the effects of time and dose on cytotoxic aldehyde generation and glutathione peroxidase activity in heart of mice following acute iron-loading.
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Affiliation(s)
- W J Bartfay
- The Centre for Cardiovascular Research, The Toronto Hospital, Ontario, Canada
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Cerami J, Gala D, Hou D, Kalliney S, Mas JL, Nyce P, Peer L, Wu G. Dilevalol via Resin-Mediated Epimerization: A Case Study. Reaction Mechanism to Reactor Design to a Viable Process. Org Process Res Dev 2000. [DOI: 10.1021/op990185y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J. Cerami
- Schering-Plough Research Institute, 1011 Morris Avenue, Union, New Jersey 07083, U.S.A
| | - D. Gala
- Schering-Plough Research Institute, 1011 Morris Avenue, Union, New Jersey 07083, U.S.A
| | - D. Hou
- Schering-Plough Research Institute, 1011 Morris Avenue, Union, New Jersey 07083, U.S.A
| | - S. Kalliney
- Schering-Plough Research Institute, 1011 Morris Avenue, Union, New Jersey 07083, U.S.A
| | - J. L. Mas
- Schering-Plough Research Institute, 1011 Morris Avenue, Union, New Jersey 07083, U.S.A
| | - P. Nyce
- Schering-Plough Research Institute, 1011 Morris Avenue, Union, New Jersey 07083, U.S.A
| | - L. Peer
- Schering-Plough Research Institute, 1011 Morris Avenue, Union, New Jersey 07083, U.S.A
| | - G. Wu
- Schering-Plough Research Institute, 1011 Morris Avenue, Union, New Jersey 07083, U.S.A
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Hou D. Effects of veratridine on the presynaptic function at Drosophila neuromuscular junctions. Neurosci Res 2000. [DOI: 10.1016/s0168-0102(00)81375-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Bartfay WJ, Butany J, Lehotay DC, Sole MJ, Hou D, Bartfay E, Liu PP. A biochemical, histochemical, and electron microscopic study on the effects of iron-loading on the hearts of mice. Cardiovasc Pathol 1999; 8:305-14. [PMID: 10615016 DOI: 10.1016/s1054-8807(99)00008-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Acute iron poisoning and chronic iron overload are well-known causes of myocardial failure. Although the exact mechanism is not known, excess iron-catalyzed free radical generation is conjectured to play a role in damaging the myocardium and altering cardiac function. We report here on the effects of acute and chronic iron-loading on the total iron concentration, glutathione peroxidase activity, and cytotoxic aldehyde production in the heart of a murine model (n = 35). Light microscopic examination for the presence of ferrous and ferric iron was undertaken following histochemical staining for these species. In addition, examination of representative samples by transmission electron microscopy was performed. Our findings show that iron-loading can result in significant increases in total iron concentrations, alterations to glutathione peroxidase activity, and increases in cytotoxic aldehyde concentrations in the hearts of mice. Furthermore, we observe that iron-loading can significantly alter and damage various cellular constituents (e.g., mitochondria, lysosomes, sarcoplasmic reticulum) and this may have bearing on the mechanism of iron-induced heart failure.
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Affiliation(s)
- W J Bartfay
- The Centre for Cardiovascular Research, Toronto Hospital, Ontario, Canada
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Bartfay WJ, Dawood F, Wen WH, Lehotay DC, Hou D, Bartfay E, Luo X, Backx PH, Liu PP. Cardiac function and cytotoxic aldehyde production in a murine model of chronic iron-overload. Cardiovasc Res 1999; 43:892-900. [PMID: 10615416 DOI: 10.1016/s0008-6363(99)00040-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVES To determine the relationship between the total chronic dose of iron administered, ex-vivo cardiac function and the concentrations of cytotoxic aldehydes in heart tissue of a murine model. METHODS In the first experiment, 34 male B6D2F1 mice were randomized to receive intraperitoneal injections of 5, 10 or 20 mg of iron dextran for three weeks, or a placebo control. The mice were subsequently randomized to undergo ex-vivo assessment of cardiac function. In the second experiment, free radical generation, quantified by the presence of 20 separate cytotoxic aldehydes, was assessed in heart tissue of 40 mice that were randomized to receive chronic treatment with various concentrations of iron dextran (100 mg to 300 mg total chronic dose administered), placebo treatment with saline, or no treatment at all (baseline). RESULTS Iron-loaded groups displayed dose-dependent depressions of heart rate, systolic pressure, developed pressure, coronary pressure, -dP/dt and +dP/dt, and increases in diastolic pressure. Monotonic dose-dependent increases in total heart aldehydes were observed in the iron-treated groups (r-0.97, p < 0.0001), whereas no significant differences were observed between baseline or time-placebo control groups. CONCLUSIONS While no single mechanism is likely to account for the complex pathophysiology of iron-induced heart failure, our findings show that chronic iron-loading in a murine model results in dose-dependent alterations to cardiac function; and results in free radical mediated damage to the heart, as measured by excess concentrations of cytotoxic aldehyde-derived peroxidation products. This is the first description of the effects of excess iron on cardiac function assessed by an ex-vivo Langendorff technique in a murine model of chronic iron-overload.
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Affiliation(s)
- W J Bartfay
- Heart and Stroke/Lewar Centre of Excellence in Cardiovascular Research, University of Toronto, Ontario, Canada
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Hou D, Zhang J. 40 years' review of intestinal atresia. Chin Med J (Engl) 1999; 112:583-5. [PMID: 11601247] [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: 02/21/2023] Open
Abstract
OBJECTIVE To analyze the 40 years' experience of intestinal atresia and to introduce a new design of long-oblique anastomosis for disproportional loops of the intestine. METHODS A total of 449 cases of congenital atresia of the small intestine were classified into three groups according to the embryopathology: high group (145 cases), including duodenal and high jejunal atresia; middle group (288), including ileo-jejunal atresia; and low group (16), including terminal ileal atresia. To analyze the survival rate and mode of treatment, we assigned the cases into 3 groups according to the year of admission: 1) 1956-1969 (173 cases), under the general pediatric surgical care; 2) 1970-1985 (147), under the specialty neonatal surgical care; and 3) 1986-1996 (129), with additional use of total parenteral nutrition. RESULTS The ileojejunal atresia group (middle group) had the highest mortality rate (47.6%). The overall mortality rate decreased as the time went by, dropping from 64.7% in the early years down to 18.6% in the recent years, and no hospital death occurred in the recent couple of years. CONCLUSION Besides the improvement of neonatal surgical techniques, selecting a proper surgical procedure according to the embryopathology is essential to the reduction of mortality. The long-oblique anastomosis is particularly acceptable in China at present for marked disproportional loops.
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Affiliation(s)
- D Hou
- Department of Pediatric Surgery, Beijing Children's Hospital, Capital University of Medical Sciences, Beijing 100045, China.
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Kinscherf R, Wagner M, Kamencic H, Bonaterra GA, Hou D, Schiele RA, Deigner HP, Metz J. Characterization of apoptotic macrophages in atheromatous tissue of humans and heritable hyperlipidemic rabbits. Atherosclerosis 1999; 144:33-9. [PMID: 10381275 DOI: 10.1016/s0021-9150(99)00037-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Apoptotic macrophages are regularly found in atherosclerotic plaques indicating programmed cell death as one of their regulatory controls. The objective of this study was to characterize in more detail apoptotic macrophages in atherosclerotic lesions of humans and heritable hyperlipidemic (HHL) rabbits. Macrophages were immunohistochemically analyzed using antibodies directed against alphaMbeta2-integrins (CD11b/CD18), CD44, major histocompatibility complex (MHC) class I and II, inducible nitric oxide synthase (iNOS), manganese superoxide dismutase (MnSOD), tumor necrosis factor alpha (TNFalpha), p53, c-jun/AP-1 and rabbit macrophages (RAM-11) and the TUNEL (TdT-mediated dUTP nick end labeling) technique. Colocalization studies of human atherosclerotic carotid and aortic tissue showed apoptotic plaque macrophages also being MnSOD-, alphaMbeta2-integrin-, CD44-, MHC class I- and II-, iNOS-, TNFalpha- and p53-immunoreactive. Similar results occurred in atherosclerotic aortas of HHL rabbits. Computer-assisted morphometric analyses revealed a positive correlation of the area density of MnSOD-immunoreactive macrophages with those of alphaMbeta2-integrin- and CD44-immunoreactive ones, but not with those of MHC class I- and II- as well as of RAM-11-immunoreactive macrophages. We conclude that apoptotic macrophages located in atherosclerotic vessel wall are activated, antigen-presenting, integrin-expressing and oxidatively stressed cells. Since all these processes have been demonstrated to cause apoptosis of macrophages in vitro, we propose their potency accelerates the susceptibility of the macrophages to programmed cell death in atherosclerotic lesions.
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Affiliation(s)
- R Kinscherf
- Department of Anatomy and Cell Biology III, University of Heidelberg, Germany.
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