1
|
Heiden B, Eaton D, Chang S, Yan Y, Schoen M, Meyers B, Kozower B, Puri V. Comparison of National Comprehensive Cancer Network and American College of Surgeons Commission on Cancer Lymph Node Sampling Guidelines for Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2021.10.171] [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: 10/19/2022]
|
2
|
Agabalogun T, Heiden B, Spraker M, Badiyan S, Vlacich G, Morgensztern D, Waqar S, Kozower B, Meyers B, Robinson C, Puri V, Samson P. Post-Operative Radiation Therapy for Non-Small Cell Lung Cancer Patients With Higher Positive to Examined Lymph Node Ratio is Associated With Improved Overall Survival. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1216] [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: 11/25/2022]
|
3
|
Samson P, Perez M, Carpenter L, Roach M, Bradley J, Kozower B, Meyers B, Puri V, Robinson C. Comparing Prospective Quality of Life Assessments Among Clinical Stage I Non-Small Cell Lung Cancer Patients Receiving Surgery versus Stereotactic Body Radiation Therapy at One Year. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1170] [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: 11/29/2022]
|
4
|
Samson P, Roach M, Bradley J, Carpenter L, Kozower B, Meyers B, Puri V, Robinson C. Increased Rates of Serious Adverse Events among Stage I Non-small Cell Lung Cancer Surgical Patients who were Predicted to Receive Stereotactic Body Radiation Therapy by Treatment Allocation Modeling. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1185] [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: 11/26/2022]
|
5
|
Chagas C, Heydinger E, Meyers B. Improving Nutrition/Health Literacy in Children and Parents About Lipids in a Primary Care Clinic. J Acad Nutr Diet 2020. [DOI: 10.1016/j.jand.2020.06.175] [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: 10/23/2022]
|
6
|
Baxter I, Blatt M, Meyers B. Portability at a Keystroke. Plant Cell 2020; 32:2445. [PMID: 33814869 PMCID: PMC7401021 DOI: 10.1105/tpc.20.00517] [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] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
|
7
|
Meyers B, Baxter I, Blatt M, Sweetlove L, Daniell H, Lunn J, Taylor C, Winchester N. Journal Flexibility in the Troubling Times of COVID-19. Plant Cell 2020; 32:1337. [PMID: 32188776 PMCID: PMC7203928 DOI: 10.1105/tpc.20.00223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
| | | | | | | | | | - John Lunn
- Editor-in-Chief, Journal of Experimental Botany
| | | | | |
Collapse
|
8
|
Meyers B, Baxter I, Blatt M, Sweetlove L, Daniell H, Lunn J, Taylor C, Winchester N. Journal Flexibility in the Troubling Times of COVID-19. Plant Physiol 2020; 182:1795. [PMID: 32253325 PMCID: PMC7140931 DOI: 10.1104/pp.20.00347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
| | | | | | | | | | - John Lunn
- Editor-in-Chief, Journal of Experimental Botany
| | | | | |
Collapse
|
9
|
Samson P, Robinson C, Kennedy W, Gabani P, Roach M, Bradley J, Kozower B, Puri V, Meyers B. Treatment Allocation Modeling and Risk-Stratified Outcomes for Clinical Stage I Non-small Cell Lung Cancer Patients Receiving Surgery versus Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.01.023] [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]
|
10
|
Samson P, Roach M, Bradley J, Carpenter L, Kozower B, Meyers B, Puri V, Robinson C. Comprehensive Baseline Clinical Assessments in Stage I Non-Small Cell Lung Cancer Patients May Facilitate Treatment Allocation Between Stereotactic Body Radiation Therapy and Surgery. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.170] [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: 10/28/2022]
|
11
|
Bélanger S, Marchand S, Jacques PÉ, Meyers B, Belzile F. Differential Expression Profiling of Microspores During the Early Stages of Isolated Microspore Culture Using the Responsive Barley Cultivar Gobernadora. G3 (Bethesda) 2018; 8:1603-1614. [PMID: 29531122 PMCID: PMC5940152 DOI: 10.1534/g3.118.200208] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 03/06/2018] [Indexed: 11/18/2022]
Abstract
In barley, it is possible to induce embryogenesis in the haploid and uninucleate microspore to obtain a diploid plant that is perfectly homozygous. To change developmental fates in this fashion, microspores need to engage in cellular de-differentiation, interrupting the pollen formation, and restore totipotency prior to engaging in embryogenesis. In this work, we used the barley cultivar Gobernadora to characterize the transcriptome of microspores prior to (day 0) and immediately after (days 2 and 5) the application of a stress pretreatment. A deep RNA-seq analysis revealed that microspores at these three time points exhibit a transcriptome of ∼14k genes, ∼90% of which were shared. An expression analysis identified a total of 3,382 differentially expressed genes (DEGs); of these, 2,155 and 2,281 DEGs were respectively identified when contrasting expression at days 0 and 2 and at days 2 and 5. These define 8 expression profiles in which DEGs share a common up- or down-regulation at these time points. Up-regulation of numerous glutathione S-transferase and heat shock protein genes as well as down-regulation of ribosomal subunit protein genes was observed between days 0 and 2. The transition from microspores to developing embryos (days 2 vs. 5) was marked by the induction of transcription factor genes known to play important roles in early embryogenesis, numerous genes involved in hormone biosynthesis and plant hormonal signal transduction in addition to genes involved in secondary metabolism. This work sheds light on transcriptional changes accompanying an important developmental shift and provides candidate biomarkers for embryogenesis in barley.
Collapse
Affiliation(s)
- Sébastien Bélanger
- Département de Phytologie and Institut de Biologie Intégrative et des Systèmes, Université Laval, Quebec City, Quebec, Canada, G1V 0A6
| | - Suzanne Marchand
- Département de Phytologie and Institut de Biologie Intégrative et des Systèmes, Université Laval, Quebec City, Quebec, Canada, G1V 0A6
| | | | - Blake Meyers
- Donald Danforth Plant Science Center, St. Louis, MO 63132
- Division of Plant Sciences, University of Missouri, Columbia, MO 65211
| | - François Belzile
- Département de Phytologie and Institut de Biologie Intégrative et des Systèmes, Université Laval, Quebec City, Quebec, Canada, G1V 0A6
| |
Collapse
|
12
|
Samson P, Kozower B, Roach M, DeWees T, Carpenter L, Gal K, Bradley J, Meyers B, Puri V, Robinson C, Crabtree T. Development of a Prospective Clinical Database for Stage I Non–small Cell Lung Cancer Patients to Identify High-Risk Individuals Appropriate for Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1782] [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]
|
13
|
Samson P, Keogan K, Robinson C, Bradley J, Roach M, Crabtree T, Kozower B, Puri V, Meyers B. Treatment Allocation Modeling for Clinical Stage I Non–small Cell Lung Cancer Patients to Facilitate the Shared Decision Making Process for Stereotactic Body Radiation Therapy Versus Surgical Resection. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1781] [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: 12/01/2022]
|
14
|
Edwards L, Meyers B, Heydinger E, Navarre H, Josiah K, Belton A, Riojas L, Knackstedt A, Brewer L. A Quick and Effective Approach to Nutrition Education and Health Literacy in Primary Care. J Acad Nutr Diet 2017. [DOI: 10.1016/j.jand.2017.06.219] [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: 10/19/2022]
|
15
|
Michelmore R, Coaker G, Bart R, Beattie G, Bent A, Bruce T, Cameron D, Dangl J, Dinesh-Kumar S, Edwards R, Eves-van den Akker S, Gassmann W, Greenberg JT, Hanley-Bowdoin L, Harrison RJ, Harvey J, He P, Huffaker A, Hulbert S, Innes R, Jones JDG, Kaloshian I, Kamoun S, Katagiri F, Leach J, Ma W, McDowell J, Medford J, Meyers B, Nelson R, Oliver R, Qi Y, Saunders D, Shaw M, Smart C, Subudhi P, Torrance L, Tyler B, Valent B, Walsh J. Foundational and Translational Research Opportunities to Improve Plant Health. Mol Plant Microbe Interact 2017; 30:515-516. [PMID: 28398839 PMCID: PMC5810936 DOI: 10.1094/mpmi-01-17-0010-cr] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Reader Comments | Submit a Comment The white paper reports the deliberations of a workshop focused on biotic challenges to plant health held in Washington, D.C. in September 2016. Ensuring health of food plants is critical to maintaining the quality and productivity of crops and for sustenance of the rapidly growing human population. There is a close linkage between food security and societal stability; however, global food security is threatened by the vulnerability of our agricultural systems to numerous pests, pathogens, weeds, and environmental stresses. These threats are aggravated by climate change, the globalization of agriculture, and an over-reliance on nonsustainable inputs. New analytical and computational technologies are providing unprecedented resolution at a variety of molecular, cellular, organismal, and population scales for crop plants as well as pathogens, pests, beneficial microbes, and weeds. It is now possible to both characterize useful or deleterious variation as well as precisely manipulate it. Data-driven, informed decisions based on knowledge of the variation of biotic challenges and of natural and synthetic variation in crop plants will enable deployment of durable interventions throughout the world. These should be integral, dynamic components of agricultural strategies for sustainable agriculture.
Collapse
Affiliation(s)
- Richard Michelmore
- 1 The Genome Center and Departments of Plant Sciences, Molecular & Cellular Biology, and Medical Microbiology & Immunology, University of California, Davis, CA, U.S.A
| | - Gitta Coaker
- 2 Department of Plant Pathology, University of California, Davis, CA, U.S.A
| | | | | | - Andrew Bent
- 5 University of Wisconsin, Madison, WI, U.S.A
| | | | | | - Jeffery Dangl
- 8 University of North Carolina, Chapel Hill, NC, U.S.A
| | | | - Rob Edwards
- 10 University of Newcastle, Newcastle upon Tyne, U.K
| | | | | | | | | | | | | | - Ping He
- 17 Texas A&M University, College Station, TX, U.S.A
| | | | - Scot Hulbert
- 19 Washington State University, Pullman, WA, U.S.A
| | - Roger Innes
- 20 Indiana University, Bloomigton, IN, U.S.A
| | | | | | | | | | - Jan Leach
- 24 Colorado State University, Fort Collins, CO, U.S.A
| | - Wenbo Ma
- 22 University of California, Riverside, CA, U.S.A
| | | | | | | | | | | | - Yiping Qi
- 29 East Carolina University, Greenville, NC, U.S.A
| | | | | | | | | | - Lesley Torrance
- 33 University of St. Andrews and James Hutton Institute, Fife, U.K
| | - Bret Tyler
- 34 Oregon State University, Corvallis, OR, U.S.A.; and
| | | | - John Walsh
- 35 University of Warwick, Wellesbourne, U.K
| |
Collapse
|
16
|
Mayer SS, Charlesworth D, Meyers B. INBREEDING DEPRESSION IN FOUR POPULATIONS OF COLLINSIA HETEROPHYLLA
NUTT (SCROPHULARIACEAE). Evolution 2017; 50:879-891. [DOI: 10.1111/j.1558-5646.1996.tb03896.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/1994] [Accepted: 04/05/1995] [Indexed: 12/01/2022]
Affiliation(s)
- Stephanie S. Mayer
- Department of Ecology and Evolution; The University of Chicago; 1101 East 57th Street Chicago Illinois 60637-1573
| | - Deborah Charlesworth
- Department of Ecology and Evolution; The University of Chicago; 1101 East 57th Street Chicago Illinois 60637-1573
| | - Blake Meyers
- Department of Vegetable Crops; University of California; Davis California 95616
| |
Collapse
|
17
|
Meyers B, Kim Y, Liceaga A, Lemenager R. Effects of stepwise dry/wet aging on physical, chemical and quality attributes of beef loins. Meat Sci 2016. [DOI: 10.1016/j.meatsci.2015.08.082] [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]
|
18
|
Biagi J, Burkes R, Brezden-Masley C, Zbuk K, Meyers B, Levine O, Spadafora S, Welch S, Davdani S, Hopman W, Booth C, Goodwin R. Reasons for Delay in Time to Initiation of Adjuvant Chemotherapy for Colon Cancer: a Multi-Institution Study. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu333.79] [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: 11/13/2022] Open
|
19
|
Londono F, Meyers B, Vlachos P, Segers P, Chirinos J. P6.8 EFFECT OF ORGANIC NITRATES ON INTRAVENTRICULAR PRESSURE GRADIENTS IN HEART FAILURE PATIENTS WITH PRESERVED EJECTION FRACTION. Artery Res 2014. [DOI: 10.1016/j.artres.2014.09.159] [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: 10/24/2022] Open
|
20
|
Yan TD, Cao C, D'Amico TA, Demmy TL, He J, Hansen H, Swanson SJ, Walker WS, Casali G, Dunning J, Shackcloth M, Shah R, Stamenkovic S, Routledge T, Walker W, Woo E, Woolley S, Baste JM, Gossot D, Roviaro G, Solaini L, Loscertales J, Gonzalez-Rivas D, Decaluwe H, Decker G, Ryck FD, Sokolow Y, Oosterhuis JW, Siebenga J, Schmid T, Bodner J, Dienemann H, Leschber G, Schneiter D, Hansen H, Licht P, Petersen RH, Piwkowski C, D'Amico T, Demmy T, Deschamps C, Howington J, Liptay M, McKenna R, Mitchell J, Meyers B, Park B, Swanson S, Lee HS, He J, Li Y, Liu Z, Wu N, Yim A, Yu W, Kohno T, Wright G, Yan TD. Video-assisted thoracoscopic surgery lobectomy at 20 years: a consensus statement. Eur J Cardiothorac Surg 2013; 45:633-9. [DOI: 10.1093/ejcts/ezt463] [Citation(s) in RCA: 156] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
21
|
Schefter T, Decker P, Meyers B, Ferguson M, Oeltjen A, Putnam J, Cassivi S, Reed C, Lockhart A. A Phase 2 Study of Neoadjuvant Therapy With Cisplatin, Docetaxel, Panitumumab Plus Radiation Therapy Followed by Surgery in Patients With Locally-Advanced Adenocarcinoma of the Distal Esophagus: Results of ACOSOG Z4051 (Alliance). Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.222] [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: 11/27/2022]
|
22
|
Tiriveedhi V, Baskaran G, Sarma N, Askar M, Budev M, Aloush A, Hachem R, Trulock E, Meyers B, Patterson G, Mohanakumar T. Pre-Transplant Antibodies to Kα1Tubulin and Collagen V in Lung Transplantation: Correlation with Disease, Primary Graft Dysfunction, Donor Specific HLA Antibodies, and Chronic Rejection. J Heart Lung Transplant 2013. [DOI: 10.1016/j.healun.2013.01.187] [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
|
23
|
Chen S, Songkumarn P, Venu RC, Gowda M, Bellizzi M, Hu J, Liu W, Ebbole D, Meyers B, Mitchell T, Wang GL. Identification and characterization of in planta-expressed secreted effector proteins from Magnaporthe oryzae that induce cell death in rice. Mol Plant Microbe Interact 2013; 26:191-202. [PMID: 23035914 DOI: 10.1094/mpmi-05-12-0117-r] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Interactions between rice and Magnaporthe oryzae involve the recognition of cellular components and the exchange of complex molecular signals from both partners. How these interactions occur in rice cells is still elusive. We employed robust-long serial analysis of gene expression, massively parallel signature sequencing, and sequencing by synthesis to examine transcriptome profiles of infected rice leaves. A total of 6,413 in planta-expressed fungal genes, including 851 genes encoding predicted effector proteins, were identified. We used a protoplast transient expression system to assess 42 of the predicted effector proteins for the ability to induce plant cell death. Ectopic expression assays identified five novel effectors that induced host cell death only when they contained the signal peptide for secretion to the extracellular space. Four of them induced cell death in Nicotiana benthamiana. Although the five effectors are highly diverse in their sequences, the physiological basis of cell death induced by each was similar. This study demonstrates that our integrative genomic approach is effective for the identification of in planta-expressed cell death-inducing effectors from M. oryzae that may play an important role facilitating colonization and fungal growth during infection.
Collapse
Affiliation(s)
- Songbiao Chen
- State Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Tiriveedhi V, Angaswamy N, Brand D, Weber J, Gelman AG, Hachem R, Trulock EP, Meyers B, Patterson G, Mohanakumar T. A shift in the collagen V antigenic epitope leads to T helper phenotype switch and immune response to self-antigen leading to chronic lung allograft rejection. Clin Exp Immunol 2012; 167:158-68. [PMID: 22132895 DOI: 10.1111/j.1365-2249.2011.04486.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Immune responses to human leucocyte antigen (HLA) and self-antigen collagen V (Col-V) have been proposed in the pathogenesis of chronic rejection (bronchiolitis obliterans syndrome, BOS) following human lung transplantation (LTx). In this study, we defined the role for the shift in immunodominant epitopes of Col-V in inducing T helper phenotype switch leading to immunity to Col-V and BOS. Sera and lavage from BOS(+) LTx recipients with antibodies to Col-V were analysed. Two years prior to BOS, patients developed antibodies to both Col-V,α1(V) and α2(V) chains. However, at clinical diagnosis of BOS, antibodies became restricted to α1(V). Further, lung biopsy from BOS(+) patients bound to antibodies to α1(V), indicating that these epitopes are exposed. Fourteen Col-V peptides [pep1-14, pep1-4 specific to α1(V), pep5-8 to α1,2(V) and pep9-14 to α2(V)] which bind to HLA-DR4 and -DR7, demonstrated that prior to BOS, pep 6, 7, 9, 11 and 14 were immunodominant and induced interleukin (IL)-10. However, at BOS, the response switched to pep1, 4 and 5 and induced interferon (IFN)-γ and IL-17 responses, but not IL-10. The T helper (Th) phenotype switch is accompanied by decreased frequency of regulatory T cells (T(regs) ) in the lavage. LTx recipients with antibodies to α1(V) also demonstrated increased matrix metalloproteinase (MMP) activation with decreased MMP inhibitor, tissue inhibitor of metalloproteinase (TIMP), suggesting that MMP activation may play a role in the exposure of new Col-V antigenic epitopes. We conclude that a shift in immunodominance of self-antigenic determinants of Col-V results in induction of IFN-γ and IL-17 with loss of tolerance leading to autoimmunity to Col-V, which leads to chronic lung allograft rejection.
Collapse
Affiliation(s)
- V Tiriveedhi
- Department of Surgery, Washington University School of Medicine, St Louis, MO 63110, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Tiriveedhi V, Angaswamy N, Brand D, Weber J, Hacheem R, Trulock E, Meyers B, Patterson G, Mohanakumar T. 233 Epitope Switch of Self-Antigen Collagen V Is Associated with Th-17 Phenotype and Autoimmune Responses: Role in Chronic Rejection Following Human Lung Transplantation. J Heart Lung Transplant 2011. [DOI: 10.1016/j.healun.2011.01.240] [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: 11/26/2022] Open
|
26
|
Tiriveedhi V, Weber J, Hacheem R, Aloush A, Phelan D, Trulock E, Meyers B, Patterson A, Mohanakumar T. 82 Antibody Directed Therapy for DSA Results in Diminished Autoimmune Response and Favorable Long Term Outcome Following Human Lung Transplantation. J Heart Lung Transplant 2011. [DOI: 10.1016/j.healun.2011.01.089] [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: 11/15/2022] Open
|
27
|
Coughlan SJ, Agrawal V, Meyers B. A comparison of global gene expression measurement technologies in Arabidopsis thaliana. Comp Funct Genomics 2010; 5:245-52. [PMID: 18629150 PMCID: PMC2447440 DOI: 10.1002/cfg.397] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2004] [Revised: 02/12/2004] [Accepted: 02/12/2004] [Indexed: 11/09/2022] Open
Abstract
Microarrays and tag-based transcriptional profiling technologies represent diverse but complementary data types. We are currently conducting a comparison of high-density in situ synthesized microarrays and massively-parallel signature sequencing (MPSS) data in the model plant, Arabidopsis thaliana. The MPSS data (available at http://mpss.udel.edu/at) and the microarray data have been compiled using the same RNA source material. In this review, we outline the experimental strategy that we are using, and present preliminary data and interpretations from the transcriptional profiles of Arabidopsis leaves and roots. The preliminary data indicate that the log ratio differences of transcripts between leaves and roots measured by microarray data are in better agreement with the MPSS data than the absolute intensities measured for individual microarrays hybridized to only one of the cRNA populations. The correlation was substantially improved by focusing on a subset of genes excluding those with very low expression levels; this selection may have removed noisy data. Future reports will incorporate more than 10 tissues that have been sampled by MPSS.
Collapse
Affiliation(s)
- Sean J Coughlan
- Agilent Technologies Inc., Little Falls Site, 2850 Centerville Road, Wilmington, DE 19808- 1644, USA. sean
| | | | | |
Collapse
|
28
|
Abstract
A greater understanding of the molecular mechanisms of sweet taste has profound significance for the food industry as well as for consumers. Understanding the mechanism by which sweet taste is elicited by saccharides, peptides, and proteins will assist science and industry in their search for sweet substances with fewer negative health effects. The original AH-B theories have been supplanted by detailed structural models. Recent identification of the human sweet receptor as a dimeric G-protein coupled receptor comprising T1R2 and T1R3 subunits has greatly increased the understanding of the mechanisms involved in sweet molecule binding and sweet taste transduction. This review discusses early theories of the sweet receptor, recent research of sweetener chemoreception of nonprotein and protein ligands, homology modeling, the transduction pathway, the possibility of the sweet receptor functioning allosterically, as well as the implications of allelic variation.
Collapse
Affiliation(s)
- B Meyers
- NutraSweet Co., Chicago, IL 60654, USA
| | | |
Collapse
|
29
|
Meyers B, Kritzer MF. In vitro binding assays using (3)H nisoxetine and (3)H WIN 35,428 reveal selective effects of gonadectomy and hormone replacement in adult male rats on norepinephrine but not dopamine transporter sites in the cerebral cortex. Neuroscience 2008; 159:271-82. [PMID: 19138725 DOI: 10.1016/j.neuroscience.2008.12.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2008] [Revised: 11/20/2008] [Accepted: 12/06/2008] [Indexed: 12/18/2022]
Abstract
The prefrontal cortices mediate cognitive functions that critically depend on local dopamine levels. In male rats, many prefrontal tasks where performance is disrupted by changes in dopamine signaling are also impaired by gonadectomy, a manipulation that increases cortical dopamine concentration, prefrontal dopamine axon density and possibly extracellular prefrontal dopamine levels as well. Because these actions could be responsible for the impairing effects of gonadectomy on prefrontal function, the question of how they might arise comes to the fore. Accordingly, the present studies asked whether dopamine levels might be increased via a hormone sensitivity of transporter-mediated dopamine uptake. Specifically, (3)H WIN 35,428 and (3)H nisoxetine, ligands selective for the dopamine (DAT)- and norepinephrine transporter (NET) respectively, were used in in vitro binding assays to ask whether gonadectomy altered transporter affinity (Kd) and/or binding site number (Bmax) in prefrontal cortex, sensorimotor cortex and/or caudate. Assays performed on tissues dissected from sham-operated, gonadectomized and gonadectomized rats supplemented with testosterone propionate or estradiol for 4 or 28 days revealed no significant group differences or obvious trends in Kd or Bmax for DAT binding or in measures of Bmax for NET binding. However, affinity constants for (3)H nisoxetine were found to be significantly higher in sensorimotor and/or prefrontal cortex of rats gonadectomized and gonadectomized and supplemented with estradiol for 4 or 28 days but similar to control in gonadectomized rats given testosterone. Because the NET contributes substantially to extracellular prefrontal dopamine clearance, these androgen-mediated effects could influence prefrontal dopamine levels and might thus be relevant for observed effects of gonadectomy on dopamine-dependent prefrontal behaviors. A hormone sensitivity of the NET could also have bearing on the prefrontal dopamine dysfunction seen in disorders like schizophrenia that disproportionately affect males, whose severity correlates with abnormal testosterone levels, and for which the NET is among suspected sites of pathology.
Collapse
Affiliation(s)
- B Meyers
- Department of Neurobiology and Behavior, Stony Brook University, Stony Brook, New York 11794-5230, USA
| | | |
Collapse
|
30
|
Meyers B, Schoeman J, Goddard A, Seakemela E, Picard J. P1238 New perspectives on the bacteriology and antimicrobial susceptibility of dog bite wounds. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)71078-6] [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: 10/23/2022]
|
31
|
Foster E, El Naqa I, Meyers B, Govindan R, Bradley J. 2132. Int J Radiat Oncol Biol Phys 2006. [DOI: 10.1016/j.ijrobp.2006.07.536] [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: 10/24/2022]
|
32
|
Tetko IV, Haberer G, Rudd S, Meyers B, Mewes HW, Mayer KFX. Spatiotemporal expression control correlates with intragenic scaffold matrix attachment regions (S/MARs) in Arabidopsis thaliana. PLoS Comput Biol 2006; 2:e21. [PMID: 16604187 PMCID: PMC1420657 DOI: 10.1371/journal.pcbi.0020021] [Citation(s) in RCA: 27] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2005] [Accepted: 02/07/2006] [Indexed: 11/18/2022] Open
Abstract
Scaffold/matrix attachment regions (S/MARs) are essential for structural organization of the chromatin within the nucleus and serve as anchors of chromatin loop domains. A significant fraction of genes in Arabidopsis thaliana contains intragenic S/MAR elements and a significant correlation of S/MAR presence and overall expression strength has been demonstrated. In this study, we undertook a genome scale analysis of expression level and spatiotemporal expression differences in correlation with the presence or absence of genic S/MAR elements. We demonstrate that genes containing intragenic S/MARs are prone to pronounced spatiotemporal expression regulation. This characteristic is found to be even more pronounced for transcription factor genes. Our observations illustrate the importance of S/MARs in transcriptional regulation and the role of chromatin structural characteristics for gene regulation. Our findings open new perspectives for the understanding of tissue- and organ-specific regulation of gene expression. Scaffold/matrix attachment regions (S/MARs) are AT-rich DNA sequences that mediate structural organization of the chromatin within the nucleus. These elements constitute anchor points of the DNA for the chromatin scaffold and serve to organize the chromatin into structural domains. Studies on individual genes led to the conclusion that the dynamic and complex organization of the chromatin mediated by S/MAR elements plays an important role in the regulation of gene expression. In addition to intergenic S/MARs, which likely exert import insulator effects, more than 2,000 intragenic S/MARs have been shown to be present within the Arabidopsis genome. In this study, the authors set out to analyze the effects of these intragenic S/MAR elements on the regulation of the genes affected. Making use of exhaustive and multidimensional expression datasets available for Arabidopsis, the authors analyzed overall expression differences and correlation of intragenic S/MARs with spatiotemporal expression of genes. On a genome scale, pronounced tissue- and organ-specific and developmental expression patterns of S/MAR-containing genes have been detected. Notably, transcription factor genes contain a significant higher portion of S/MARs. The pronounced difference in expression characteristics of S/MAR-containing genes emphasizes their functional importance and the importance of structural chromosomal characteristics for gene regulation in plants as well as within other eukaryotes.
Collapse
Affiliation(s)
- Igor V Tetko
- GSF National Research Center for Environment and Health, MIPS, Institute for Bioinformatics, Neuherberg, Germany
| | - Georg Haberer
- GSF National Research Center for Environment and Health, MIPS, Institute for Bioinformatics, Neuherberg, Germany
| | - Stephen Rudd
- Bioinformatics Group, Turku Centre for Biotechnology, Tykistokatu, Turku, Finland
| | - Blake Meyers
- Department of Plant and Soil Sciences, Delaware Biotechnology Institute, Newark, New Jersey, United States of America
| | - Hans-Werner Mewes
- GSF National Research Center for Environment and Health, MIPS, Institute for Bioinformatics, Neuherberg, Germany
- Department of Genome-Oriented Bioinformatics, Wissenschaftszentrum Weihenstephan, Technische Universität München, Freising, Germany
| | - Klaus F. X Mayer
- GSF National Research Center for Environment and Health, MIPS, Institute for Bioinformatics, Neuherberg, Germany
- * To whom correspondence should be addressed. E-mail:
| |
Collapse
|
33
|
Pisters K, Vallieres E, Bunn P, Crowley J, Ginsberg R, Ellis P, Meyers B, Marks R, Treat J, Gandara D. S9900: A phase III trial of surgery alone or surgery plus preoperative (preop) paclitaxel/carboplatin (PC) chemotherapy in early stage non-small cell lung cancer (NSCLC): Preliminary results. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.lba7012] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- K. Pisters
- MD Anderson Cancer Ctr, Houston, TX; Swedish Cancer Institute, Seattle, WA; Univ of Colorado Cancer Ctr, Denver, CO; SWOG Statistical Ctr, Seattle, WA; Univ of Toronto, Toronto, ON, Canada; The Juravinski Cancer Ctr, Hamilton, ON, Canada; Washington Univ, St Louis, MO; Mayo Clinic, Rochester, MN; Fox Chase Temple Univ Cancer Ctr, Philadelphia, PA; Univ of CA Davis Cancer Ctr, Sacramento, CA
| | - E. Vallieres
- MD Anderson Cancer Ctr, Houston, TX; Swedish Cancer Institute, Seattle, WA; Univ of Colorado Cancer Ctr, Denver, CO; SWOG Statistical Ctr, Seattle, WA; Univ of Toronto, Toronto, ON, Canada; The Juravinski Cancer Ctr, Hamilton, ON, Canada; Washington Univ, St Louis, MO; Mayo Clinic, Rochester, MN; Fox Chase Temple Univ Cancer Ctr, Philadelphia, PA; Univ of CA Davis Cancer Ctr, Sacramento, CA
| | - P. Bunn
- MD Anderson Cancer Ctr, Houston, TX; Swedish Cancer Institute, Seattle, WA; Univ of Colorado Cancer Ctr, Denver, CO; SWOG Statistical Ctr, Seattle, WA; Univ of Toronto, Toronto, ON, Canada; The Juravinski Cancer Ctr, Hamilton, ON, Canada; Washington Univ, St Louis, MO; Mayo Clinic, Rochester, MN; Fox Chase Temple Univ Cancer Ctr, Philadelphia, PA; Univ of CA Davis Cancer Ctr, Sacramento, CA
| | - J. Crowley
- MD Anderson Cancer Ctr, Houston, TX; Swedish Cancer Institute, Seattle, WA; Univ of Colorado Cancer Ctr, Denver, CO; SWOG Statistical Ctr, Seattle, WA; Univ of Toronto, Toronto, ON, Canada; The Juravinski Cancer Ctr, Hamilton, ON, Canada; Washington Univ, St Louis, MO; Mayo Clinic, Rochester, MN; Fox Chase Temple Univ Cancer Ctr, Philadelphia, PA; Univ of CA Davis Cancer Ctr, Sacramento, CA
| | - R. Ginsberg
- MD Anderson Cancer Ctr, Houston, TX; Swedish Cancer Institute, Seattle, WA; Univ of Colorado Cancer Ctr, Denver, CO; SWOG Statistical Ctr, Seattle, WA; Univ of Toronto, Toronto, ON, Canada; The Juravinski Cancer Ctr, Hamilton, ON, Canada; Washington Univ, St Louis, MO; Mayo Clinic, Rochester, MN; Fox Chase Temple Univ Cancer Ctr, Philadelphia, PA; Univ of CA Davis Cancer Ctr, Sacramento, CA
| | - P. Ellis
- MD Anderson Cancer Ctr, Houston, TX; Swedish Cancer Institute, Seattle, WA; Univ of Colorado Cancer Ctr, Denver, CO; SWOG Statistical Ctr, Seattle, WA; Univ of Toronto, Toronto, ON, Canada; The Juravinski Cancer Ctr, Hamilton, ON, Canada; Washington Univ, St Louis, MO; Mayo Clinic, Rochester, MN; Fox Chase Temple Univ Cancer Ctr, Philadelphia, PA; Univ of CA Davis Cancer Ctr, Sacramento, CA
| | - B. Meyers
- MD Anderson Cancer Ctr, Houston, TX; Swedish Cancer Institute, Seattle, WA; Univ of Colorado Cancer Ctr, Denver, CO; SWOG Statistical Ctr, Seattle, WA; Univ of Toronto, Toronto, ON, Canada; The Juravinski Cancer Ctr, Hamilton, ON, Canada; Washington Univ, St Louis, MO; Mayo Clinic, Rochester, MN; Fox Chase Temple Univ Cancer Ctr, Philadelphia, PA; Univ of CA Davis Cancer Ctr, Sacramento, CA
| | - R. Marks
- MD Anderson Cancer Ctr, Houston, TX; Swedish Cancer Institute, Seattle, WA; Univ of Colorado Cancer Ctr, Denver, CO; SWOG Statistical Ctr, Seattle, WA; Univ of Toronto, Toronto, ON, Canada; The Juravinski Cancer Ctr, Hamilton, ON, Canada; Washington Univ, St Louis, MO; Mayo Clinic, Rochester, MN; Fox Chase Temple Univ Cancer Ctr, Philadelphia, PA; Univ of CA Davis Cancer Ctr, Sacramento, CA
| | - J. Treat
- MD Anderson Cancer Ctr, Houston, TX; Swedish Cancer Institute, Seattle, WA; Univ of Colorado Cancer Ctr, Denver, CO; SWOG Statistical Ctr, Seattle, WA; Univ of Toronto, Toronto, ON, Canada; The Juravinski Cancer Ctr, Hamilton, ON, Canada; Washington Univ, St Louis, MO; Mayo Clinic, Rochester, MN; Fox Chase Temple Univ Cancer Ctr, Philadelphia, PA; Univ of CA Davis Cancer Ctr, Sacramento, CA
| | - D. Gandara
- MD Anderson Cancer Ctr, Houston, TX; Swedish Cancer Institute, Seattle, WA; Univ of Colorado Cancer Ctr, Denver, CO; SWOG Statistical Ctr, Seattle, WA; Univ of Toronto, Toronto, ON, Canada; The Juravinski Cancer Ctr, Hamilton, ON, Canada; Washington Univ, St Louis, MO; Mayo Clinic, Rochester, MN; Fox Chase Temple Univ Cancer Ctr, Philadelphia, PA; Univ of CA Davis Cancer Ctr, Sacramento, CA
| |
Collapse
|
34
|
Borson S, Bartels SJ, Colenda CC, Gottlieb GL, Meyers B. Geriatric mental health services research: Strategic Plan for an Aging Population: Report of the Health Services Work Group of the American Association for Geriatric Psychiatry. Am J Geriatr Psychiatry 2001; 9:191-204. [PMID: 11481126] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
In November 1999, a working group of the American Association for Geriatric Psychiatry (AAGP) convened to consider strategic recommendations for developing geriatric mental health services research as a scientific discipline. The resulting consensus statement summarizes the principles guiding mental health services research on late-life mental disorders, presents timely and topical priorities for investigation with the potential to benefit the lives of older adults and their families, and articulates a systematic program for expanding the supply of well-trained geriatric mental health services researchers. The agenda presented here is designed to address critical questions in provision of effective mental health care to an aging population and the health policies that govern its delivery.
Collapse
Affiliation(s)
- S Borson
- Department of Psychiatry and Behavioral Sciences, University of Washington Seattle, WA 98195-6560, USA
| | | | | | | | | |
Collapse
|
35
|
Meyers B, Borrego F, Papanicolaou G. Pneumocystis carinii pneumonia prophylaxis with atovaquone in trimethoprim-sulfamethoxazole-intolerant orthotopic liver transplant patients: a preliminary study. Liver Transpl 2001; 7:750-1. [PMID: 11510024 DOI: 10.1053/jlts.2001.26433] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [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: 02/07/2023]
Abstract
Pneumocystis carinii pneumonia (PCP) is an opportunistic infection associated with increased morbidity and mortality in solid-organ and bone-marrow transplant recipients. Side effects of trimethoprim-sulfamethoxazole (TMP/SMX) are frequent; therefore, we performed a preliminary study using atovaquone suspension, 750 mg once daily, for 1 year for the prevention of PCP in liver transplant recipients intolerant to TMP/SMX therapy. Twenty-eight patients were treated, and data were analyzed for efficacy and toxicity. Adverse events occurred in 14 subjects, mainly related to the gastrointestinal tract. Side effects from TMP/SMX, i.e., rash, completely resolved and bone-marrow suppression improved in 62% of patients. No patients developed Pneumocystis carinii infection. Although a lower dose of atovaquone once daily may be effective in transplant recipients, further studies are necessary to confirm this preliminary observation. Liver Transpl 2001;7:750-751.)
Collapse
Affiliation(s)
- B Meyers
- Transplant Infectious Diseases, Mount Sinai School of Medicine, One Gustave L. Levy Place, New York, NY 10029-6574, USA.
| | | | | |
Collapse
|
36
|
Gallagher J, Fisher C, Sherman B, Munger M, Meyers B, Ellison T, Fischkoff S, Barchuk WT, Teoh L, Velagapudi R. A multicenter, open-label, prospective, randomized, dose-ranging pharmacokinetic study of the anti-TNF-alpha antibody afelimomab in patients with sepsis syndrome. Intensive Care Med 2001; 27:1169-78. [PMID: 11534565 DOI: 10.1007/s001340100973] [Citation(s) in RCA: 35] [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] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
OBJECTIVE To investigate the pharmacokinetics and safety of afelimomab, a murine antibody fragment against human tumor necrosis factor (TNF)-alpha in patients with sepsis. DESIGN Multicenter, randomized, open-label, placebo-controlled phase I/II clinical trial. SETTING Intensive care units of six academic medical centers in the United States. PATIENTS Forty-eight patients with a clinical diagnosis of sepsis who received standard supportive care and antimicrobial therapy. INTERVENTIONS Patients received 0.3, 1.0, or 3.0 mg/kg afelimomab or placebo intravenously over 20 min. Three patients in each dose group received single doses; the remaining nine patients in each group received multiple (nine) doses at 8-h intervals over 72 h. MEASUREMENTS AND MAIN RESULTS Afelimomab appeared safe and well tolerated. Single- and multiple-dose kinetics were predictable and dose related. The elimination half-life was 44.7 h. Afelimomab treatment resulted in increased serum concentrations of TNF (includes TNF-antibody complexes) and decreased serum interleukin-6 concentrations, whereas no discernible trends were observed in placebo-treated patients. There was no significant treatment effect on 28-day mortality as was expected given the small number of patients. However, overall mortality was significantly (p = 0.001) associated with baseline interleukin-6 concentration. All patients experienced adverse events, but the vast majority were considered unrelated to the study drug and demonstrated no apparent relationship to afelimomab dose. Although 41% of patients developed human anti-murine antibodies, there were no clinical sequelae. CONCLUSIONS Multidose therapy with afelimomab was safe, well tolerated, and had predictable linear kinetics. A large randomized trial comparing afelimomab to placebo in patients with well defined sepsis has recently been completed.
Collapse
Affiliation(s)
- J Gallagher
- Department of Anaesthesia, College of Medicine, University of Florida, Gainesville 32610-0254, USA.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Cohen CI, Cohen GD, Blank K, Gaitz C, Katz IR, Leuchter A, Maletta G, Meyers B, Sakauye K, Shamoian C. Schizophrenia and older adults. An overview: directions for research and policy. Am J Geriatr Psychiatry 2000; 8:19-28. [PMID: 10648291 DOI: 10.1097/00019442-200002000-00003] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.4] [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: 11/25/2022]
Abstract
The Group for the Advancement of Psychiatry, Committee on Aging, believes that a crisis has emerged with respect to the understanding of the nature and treatment of schizophrenia in older persons. Moreover, critical gaps exist in clinical services for this population. In this article, we examine the epidemiology of aging and schizophrenia; life-course changes in psychopathology, cognitive function, social functioning, and physical health; and various concerns regarding treatment, services, and financing. Finally, we propose six research and policy recommendations and suggest methods for addressing the research questions that we have posed.
Collapse
Affiliation(s)
- C I Cohen
- SUNY Health Sciences Center, Brooklyn,11203, USA.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
|
39
|
Emre S, Sebastian A, Chodoff L, Boccagni P, Meyers B, Sheiner PA, Mor E, Guy SR, Atillasoy E, Schwartz ME, Miller CM. Selective decontamination of the digestive tract helps prevent bacterial infections in the early postoperative period after liver transplant. Mt Sinai J Med 1999; 66:310-3. [PMID: 10618730] [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: 02/15/2023]
Abstract
UNLABELLED In liver transplant (LTx) recipients, gut-associated bacterial and fungal organisms produce significant postoperative morbidity and mortality. We sought to assess the role of selective digestive decontamination (SDD) in preventing postoperative infections in a large single-center cohort of liver recipients transplanted under two non-simultaneous protocols. In 212 consecutive patients transplanted between 1/1/91 and 7/31/92, SDD (gentamicin 80 mg, polymyxin B 100 mg, nystatin suspension 10 mL) was employed, starting after induction of anesthesia and continued until POD 21 (SDD Group). In 157 consecutive patients transplanted between 1/1/93 and 12/31/93, SDD was not used (non-SDD Group). Both groups received IV vancomycin and cefotaxime prophylaxis. All culture-positive infections within the first 30 days post-LTx were recorded and classified as bacterial or fungal. Infection-related mortality (patients who died of infectious complications without any technical complication) was recorded. Groups did not differ in patient demographics, United Network for Organ Sharing (UNOS) status, use of veno-venous bypass, total/warm ischemia, or length of ICU stay. Infections developed in fewer SDD patients (56/212; 26%) than non-SDD patients (69/157; 44%) (p<0.001). The incidence of gram-negative infection was less in the SDD group (11% vs. 26%, p<0. 001) as was gram-positive infection (16% vs. 26%, p<0.001). Among patients who developed infection, there was no difference between groups in infections per patient. Primary graft non-function (PNF) developed in 20 SDD patients (7/20 had infections) and 8 non-SDD patients (6/8 had infections) (p=0.06). There were no differences in incidence of fungal infections or of infection-related mortality between groups. In the SDD group, there were fewer abdominal (p<0. 001), lung (p<0.001), wound (p<0.01), and urinary tract infections (p<0.05). CONCLUSION Use of SDD in liver recipients early after transplant was associated with significantly fewer infections in the early postoperative period.
Collapse
Affiliation(s)
- S Emre
- Mount Sinai School of Medicine, Box 1104, One East 100th Street, New York, NY 10029, USA
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Naldini A, Sower L, Bocci V, Meyers B, Carney DH. Thrombin receptor expression and responsiveness of human monocytic cells to thrombin is linked to interferon-induced cellular differentiation. J Cell Physiol 1998; 177:76-84. [PMID: 9731747 DOI: 10.1002/(sici)1097-4652(199810)177:1<76::aid-jcp8>3.0.co;2-b] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Human thrombin has been shown to stimulate monocyte chemotaxis, phagocytosis, and interleukin (IL8) production, but the mechanisms responsible for stimulation are not well defined. In some cells, thrombin stimulation of proliferation appears to require both cleavage of the proteolytically activated receptor for thrombin (PAR1) and activation of a nonproteolytically activated thrombin receptor (N-PAR), while in others activation of either receptor alone may be sufficient for stimulation. We, therefore, have initiated studies to address thrombin receptor expression and cell responsiveness to thrombin in interferon gamma (IFNgamma)-differentiated and nondifferentiated U937 monocytic cells. Northern blot analysis shows that PAR1 expression is upregulated upon differentiation. Experiments with biotinylated and 125I-thrombin show that specific thrombin binding is dramatically increased by differentiation although it is not clear if this binding is to PAR1 or to a separate binding component such as N-PAR which is present on fibroblasts and other cells. Addition of thrombin at concentrations of 1-10 microg/ml (30-300 nM, concentrations where specific thrombin binding is observed) stimulates proliferation of IFNgamma-differentiated U937 cells but not of undifferentiated U937 cells. Thrombin also stimulates interleukin-6 (IL6) production in IFNgamma-differentiated U937 cells. Moreover, thrombin induces high levels of IL6, interleukin-1beta (IL1beta), and tumor necrosis factor-alpha (TNF alpha) production by peripheral blood mononuclear cells (PBMC) and monocytes. These results show that differentiated U937 cells and mature PBMC are responsive to thrombin whereas nondifferentiated U937 are not. Further, this responsiveness appears to correlate with expression of PAR1 and to a dramatic increase in specific thrombin binding. That thrombin stimulates cytokine production and proliferation in populations of differentiated monocytes suggests that thrombin may be an important regulator of inflammation and wound healing.
Collapse
Affiliation(s)
- A Naldini
- University of Siena, Institute of General Physiology, Italy.
| | | | | | | | | |
Collapse
|
41
|
Abstract
BACKGROUND Documented snowmobile-related fatalities and injuries have increased; however, reports of peripheral nerve injuries are rare. METHODS This case series describes a cluster of severe disabling brachial plexus injuries incurred during snowmobiling. Medical record abstraction was used to identify relevant patient and event characteristics. RESULTS All study patients were younger male snowmobile drivers. All incidents occurred at speeds in excess of 40 mph. Blood alcohol concentrations exceeded legal intoxication limits in most cases. Complete damage of the brachial plexus occurred in four of the six patients; severe disability occurred in all cases. Five of the six patients sustained associated orthopedic shoulder complex injuries. CONCLUSION This first report of severe peripheral nerve damage may signal the advent of more severe nonfatal snowmobile-related injuries that mimic motorcycle-related injuries, because the maximum attainable speeds of snowmobiles have increased. Surveillance of snowmobile-related injuries is warranted to identify the full spectrum of snowmobile injuries and recommend public safety measures.
Collapse
Affiliation(s)
- B L Braun
- Division of Education and Research, St. Mary's/Duluth Clinic Health System, Minnesota 55805, USA
| | | | | | | |
Collapse
|
42
|
Afessa B, Hogans L, Murphy R, Kubilis P, Meyers B. APACHE II score is better than weaning indices in predicting prolonged mechanical ventilator dependence. Critical Care 1997. [PMCID: PMC3495508 DOI: 10.1186/cc64] [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: 11/10/2022]
|
43
|
Schluger LK, Sheiner PA, Jonas M, Guarrera JV, Fiel IM, Meyers B, Berk PD. Isoniazid hepatotoxicity after orthotopic liver transplantation. Mt Sinai J Med 1996; 63:364-9. [PMID: 8898542] [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: 02/02/2023]
Abstract
The hepatotoxic effects of isoniazid have been well described, but there have been no reports on the incidence of isoniazid-induced liver disease in patients who have received an orthotopic liver transplant. We retrospectively reviewed the records of 13 patients who received isoniazid after liver transplantation for either chemoprophylaxis or as part of a multidrug regimen for the treatment of Mycobacterium tuberculosis infection. Five of the 13 patients developed biochemical and histologic evidence of isoniazid hepatotoxicity. All five patients were on a multidrug regimen which included the administration of rifampin. No hepatotoxicity occurred in patients who received isoniazid alone or in conjunction with ethambutol for chemoprophylaxis. In conclusion, the incidence of isoniazid hepatotoxicity increased when the drug was used in conjunction with rifampin for the treatment of M. tuberculosis infection.
Collapse
Affiliation(s)
- L K Schluger
- Department of Medicine, Mount Sinai School of Medicine, New York, New York 10029, USA
| | | | | | | | | | | | | |
Collapse
|
44
|
Abstract
Experimental animal models that are directly relevant to human melanoma are lacking. We propose the Angora goat as a potentially useful field model with experimental potential and to this end have examined the prevalence and site distribution of all skin cancers in 28 Angora goat herds in Queensland, Australia. The prevalence of benign melanocytic lesions (lentigines) and their experimental induction by sunlight were also investigated. Among 1731 goats over 2 years of age, 139 malignant skin tumors were excised from 95 affected animals. The prevalence of squamous cell carcinoma (SCC) was 3.8% and of melanoma, 2.2%. Main site of occurrence of melanoma (83%) was the dorsal surface of the ear; in contrast SCC occurred mostly (84%) on the perineum. Lentigines were darker and more prevalent on the exposed compared with the unexposed surface of the ear in Angoras, analogous to the higher prevalence of nevi on the exposed compared with the less exposed inner surface of the arm in humans. Lentigines, which were also found on the perineum though lighter in color than on the dorsal ear, were absent in young animals under 3 months but were numerous in 1-3 year olds. Furthermore in an experimental substudy eight goats, having one flank repeatedly shorn and the contralateral flank left unshorn, revealed consistently more solar lentigines on the shorn flank (P < 0.05) when both sides were examined after 9 months. Histopathological examination of paired skin biopsies from five of these goats also showed more abundant pigmentation in skin from the exposed, as compared with the unexposed flank. These findings indicate that sunlight induces tumors and lentigines in goats in a highly site-specific manner. The Angora goat model may suggest paradigms for explaining the site differences observed for human melanoma and may also be useful in the future clarification of molecular changes following carcinogenic levels of sun exposure.
Collapse
Affiliation(s)
- A Green
- Epidemiology and Population Health Unit, Queensland Institute of Medical Research, Australia.
| | | | | | | | | | | | | |
Collapse
|
45
|
Mayer SS, Charlesworth D, Meyers B. Inbreeding Depression in Four Populations of Collinsia heterophylla Nutt (Scrophulariaceae). Evolution 1996. [DOI: 10.2307/2410859] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
46
|
Alter CL, Pelcovitz D, Axelrod A, Goldenberg B, Harris H, Meyers B, Grobois B, Mandel F, Septimus A, Kaplan S. Identification of PTSD in cancer survivors. Psychosomatics 1996; 37:137-43. [PMID: 8742542 DOI: 10.1016/s0033-3182(96)71580-3] [Citation(s) in RCA: 174] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The authors measured the rate and determinants of posttraumatic stress disorder (PTSD) in a group of cancer survivors. Patients who had a history of cancer diagnosis with at least 3 years since diagnosis, receiving no active treatment, such as chemotherapy or radiation, were interviewed (N = 27). Patients, who were part of the DSM-IV PTSD field trial, were compared with a community-based control group matched for age and socioeconomic status. One member of the survivor group (4%) and no members of the control group met criteria for current PTSD (NS). Six of the survivors (22%) and no control subjects met lifetime criteria (P < 0.02). Cancer patients have a higher rate of PTSD than found in the community. Symptoms closely resemble those of individuals who have experienced other traumatic events.
Collapse
Affiliation(s)
- C L Alter
- Department of Psychiatry, North Shore University Hospital-Cornell University Medical College, USA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
47
|
Pelcovitz D, Goldenberg B, Kaplan S, Weinblatt M, Mandel F, Meyers B, Vinciguerra V. Posttraumatic stress disorder in mothers of pediatric cancer survivors. Psychosomatics 1996; 37:116-26. [PMID: 8742539 DOI: 10.1016/s0033-3182(96)71577-3] [Citation(s) in RCA: 102] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Prevalence of posttraumatic stress disorder (PTSD) in 24 mothers of pediatric cancer survivors was compared with its prevalence among 23 mothers of healthy children. Significantly more mothers of pediatric cancer survivors were diagnosed with lifetime PTSD. Significant differences were also found in lifetime arousal, as well as current and lifetime reexperience and avoidance symptom clusters. Significant difference existed in the distribution of the number of prediagnosis high-magnitude events experienced by the mothers diagnosed with current PTSD as compared with the prediagnosis experience of the mothers who were not diagnosed with current PTSD. Illness severity, level of perceived family and extrafamilial social support, and Symptom Checklist-90-Revised global severity index scores did not significantly differ in the PTSD-positive and PTSD-negative groups.
Collapse
Affiliation(s)
- D Pelcovitz
- Department of Psychiatry, North Shore University Hospital, Cornell University Medical College, USA
| | | | | | | | | | | | | |
Collapse
|
48
|
Meyers B. Wanted: Disability benefits. Can Vet J 1993; 34:7. [PMID: 17424158 PMCID: PMC1686355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
|
49
|
Abstract
In the first part of this article I argue that war should be considered as a disaster. A brief historical review of the relationship of the field of disaster studies to military concerns is presented in an effort to demonstrate that, in fact, war has been a familiar subject in the field. I then consider definitions of disaster and conclude that war is easily accommodated by them. In the main section of the article I attempt to uncover distinctive characteristics of war by submitting war to analysis within well known sociological frameworks for disasters. Finally, some methodological considerations for the study of war disasters are presented.
Collapse
Affiliation(s)
- B Meyers
- Department of Psychology Brooklyn College Brooklyn NY 11210 USA
| |
Collapse
|
50
|
Abstract
The efficacy and safety of ofloxacin for the treatment of pneumonia, urinary infection and skin infections in the institutionalized elderly is being studied in a multicenter North American trial. The two study arms include an open, randomized, comparison of intravenous or oral ofloxacin with standard therapy in subjects requiring admission to acute care institutions, and an open study of oral ofloxacin in residents of chronic care facilities. To date 58 subjects have been enrolled with a mean age of 84 +/- 8 years. The preliminary observations from this ongoing multicenter study suggest that ofloxacin will be a safe and effective option for antimicrobial therapy in the treatment of these common infections in the institutionalized elderly.
Collapse
|