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Villa D, Scott DW, Morin R, Nakamura H, Larouche JF, Cheung M, Johnson N, Elemary M, Keating MM, Tonseth P, Zukotynski K, Mayo S, Goswami R, Laister R, Kuruvilla J. A PHASE II STUDY OF ACALABRUTINIB IN COMBINATION WITH R‐CHOP CHEMOTHERAPY PRIOR TO AUTOLOGOUS STEM CELL TRANSPLANTATION IN PREVIOUSLY UNTREATED MANTLE CELL LYMPHOMA. Hematol Oncol 2021. [DOI: 10.1002/hon.171_2880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- D. Villa
- BC Cancer, Centre for Lymphoid Cancer Vancouver Canada
| | - D. W. Scott
- BC Cancer, Centre for Lymphoid Cancer Vancouver Canada
| | - R. Morin
- BC Cancer, Centre for Lymphoid Cancer Vancouver Canada
| | - H. Nakamura
- BC Cancer, Centre for Lymphoid Cancer Vancouver Canada
| | - J. F. Larouche
- Centre Hospitalier Universitaire de Québec Hôpital de l’Enfant‐Jésus Quebec City Canada
| | - M. Cheung
- Sunnybrook Health Sciences Centre Department of Hematology Toronto Canada
| | - N. Johnson
- Jewish General Hospital Department of Hematology Montreal Canada
| | - M. Elemary
- Saskatchewan Cancer Agency Saskatoon Cancer Centre Saskatoon Canada
| | - M. M. Keating
- Nova Scotia Cancer Centre QEII Health Sciences Centre Halifax Canada
| | - P. Tonseth
- BC Cancer Department of Functional Imaging Vancouver Canada
| | - K. Zukotynski
- McMaster University Departments of Radiology and Medicine Hamilton Canada
| | - S. Mayo
- University of Toronto Lawrence S. Bloomberg Faculty of Nursing Toronto Canada
| | - R. Goswami
- Sunnybrook Health Sciences Centre Department of Laboratory Medicine and Pathobiology Toronto Canada
| | - R. Laister
- University Health Network Princess Margaret Cancer Centre Toronto Canada
| | - J. Kuruvilla
- University Health Network Princess Margaret Cancer Centre Toronto Canada
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2
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Mayo S, Drury A. Representation of cancer survivors’ preferences in policies for supportive care: Implications for oncology nursing. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz277.011] [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
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3
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Mayo S, Gomez-Manjon I, Moreno-Izquierdo A, Moreno-Garcia M, Fernandez-Martinez FJ. [Infantile epileptic encephalopathy: a good genetic study should be a priority]. Rev Neurol 2018; 66:324. [PMID: 29696622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- S Mayo
- Hospital Universitario 12 de Octubre, Madrid, Espana
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4
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Carro-Huerga G, Mayo S, Rodríguez-González Á, Suárez Villanueva V, González-López Ó, Gutiérrez S, Casquero PA. In vitro effects of Trichoderma secondary metabolites on Phaeoacremonium aleophilum. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- G Carro-Huerga
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - S Mayo
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - Á Rodríguez-González
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - V Suárez Villanueva
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - Ó González-López
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - S Gutiérrez
- Research Group of Engineering and Sustainable Agriculture, Area of Microbiology, University School of Agricultural Engineers, Universidad de León, Ponferrada, Spain
| | - PA Casquero
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
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Suárez-Villanueva V, Rodríguez-González Á, Da Silva F, Mayo S, Carro-Huerga G, González-López Ó, Álvarez-García S, Casquero PA. Small concentrations of Lippia spp. can help in the control of the bean weevil, Acanthoscelides obtectus Say. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- V Suárez-Villanueva
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - Á Rodríguez-González
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - F Da Silva
- Federal University of Reconcavo de Bahia, Rui Barbosa 710, CEP 44380 – 000, Cruz das Almas, Spain
| | - S Mayo
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - G Carro-Huerga
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - Ó González-López
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - S Álvarez-García
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - PA Casquero
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
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González-López Ó, Mayo S, Rodríguez-González Á, Carro-Huerga G, Suárez Villanueva V, Berninger T, Casquero PA. Distribution of secoiridoid glycosides in the root system of the medicinal plant Gentiana lutea L. subsp. aurantiaca. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Ó González-López
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - S Mayo
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - Á Rodríguez-González
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - G Carro-Huerga
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - V Suárez Villanueva
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - T Berninger
- AIT Austrian Institute of Technology GmbH, Center for Health & Bioresources.Muthgasse 11, 1190, Vienna, Spain
| | - PA Casquero
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
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Rodríguez-González Á, Suárez Villanueva V, Mayo S, Carro-Huerga G, González-López Ó, Gutiérrez S, Peláez H, Casquero PA. Control of Xylotrechus arvicola (Coleoptera: Cerambycidae) larvae population by inoculating Trichoderma spp. in vine wood. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Á Rodríguez-González
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - V Suárez Villanueva
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - S Mayo
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - G Carro-Huerga
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - Ó González-López
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
| | - S Gutiérrez
- Area of Microbiology, University School of Agricultural Engineers, Universidad de León, Ponferrada Campus, Av. Astorga s/n, 24401, Ponferrada, Spain
| | - H Peláez
- Freelance, Vicente Aleixandre 24, 47008, Valladolid, Spain
| | - PA Casquero
- Research Group of Engineering and Sustainable Agriculture, Research Institute of Environment, Natural Resources and Biodiversity, Universidad de León, Leon, Spain
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López-Carrasco A, Oltra S, Monfort S, Mayo S, Roselló M, Martínez F, Orellana C. Mutation screening of AURKB and SYCP3 in patients with reproductive problems. Mol Hum Reprod 2012; 19:102-8. [PMID: 23100464 DOI: 10.1093/molehr/gas047] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Mutations in the spindle checkpoint genes can cause improper chromosome segregations and aneuploidies, which in turn may lead to reproductive problems. Two of the proteins involved in this checkpoint are Aurora kinase B (AURKB), preventing the anaphase whenever microtubule-kinetochore attachments are not the proper ones during metaphase; and synaptonemal complex protein 3 (SYCP3), which is essential for the formation of the complex and for the recombination of the homologous chromosomes. This study has attempted to clarify the possible involvement of both proteins in the reproductive problems of patients with chromosomal instability. In order to do this, we have performed a screening for genetic variants in AURKB and SYCP3 among these patients using Sanger sequencing. Only one apparently non-pathogenic deletion was found in SYCP3. On the other hand, we found six sequence variations in AURKB. The consequences of these changes on the protein were studied in silico using different bioinformatic tools. In addition, the frequency of three of the variations was studied using a high-resolution melting approach. The absence of these three variants in control samples and their position in the AURKB gene suggests their possible involvement in the patients' chromosomal instability. Interestingly, two of the identified changes in AURKB were found in each member of a couple with antecedents of spontaneous pregnancy loss, a fetal anencephaly and a deaf daughter. One of these changes is described here for the first time. Although further studies are necessary, our results are encouraging enough to propose the analysis of AURKB in couples with reproductive problems.
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Affiliation(s)
- A López-Carrasco
- Unidad de Genética y Diagnóstico Prenatal, Hospital Universitario y Politécnico la Fe. Av. Campanar 21, 46009 Valencia, Spain
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Howell D, Mayo S, Currie S, Jones G, Boyle M, Hack T, Green E, Hoffman L, Collacutt V, McLeod D, Simpson J. Psychosocial health care needs assessment of adult cancer patients: a consensus-based guideline. Support Care Cancer 2012; 20:3343-54. [PMID: 22581015 DOI: 10.1007/s00520-012-1468-x] [Citation(s) in RCA: 54] [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: 03/03/2011] [Accepted: 04/09/2012] [Indexed: 11/25/2022]
Abstract
PURPOSE Although recommended as an essential part of cancer care, there is limited evidence regarding the optimum approach to psychosocial health care needs assessment in this setting. To address this gap, the Cancer Journey Action Group of the Canadian Partnership Against Cancer (CPAC) and the Canadian Association of Psychosocial Oncology (CAPO) partnered to develop consensus-based recommendations regarding the routine assessment of psychosocial and supportive care needs. The purpose of this paper is to summarize the evidence that informed the guideline and disseminate the recommendations developed by the expert panel. METHODS Clinical practice recommendations were developed by a panel comprised of psychosocial and interdisciplinary experts. Recommendations were informed by a review of oncology clinical practice guidelines, systematic reviews, and primary research, through to May 2008. Following expert consensus on the recommendations, the clinical practice guideline was externally reviewed by a purposively selected sample of national and international interdisciplinary experts. RESULTS A total of nine clinical practice guidelines, three systematic reviews, and 14 primary studies were included in the review. Overall, this body of literature suggested that routine collection of psychosocial health care data has an influence on communication with oncologists and other study specific outcomes, but the evidence was limited by heterogeneity and methodological limitations. Based on the interpretation of this body of evidence by clinical experts, research methodologists, and external reviewers, 12 substantive recommendations were developed regarding the process and parameters of psychosocial needs assessment in adult cancer patients. CONCLUSION Given the limitations in the current body of evidence, there remains a need for rigorous empirical research regarding the optimal approach to psychosocial needs assessment, including the specific characteristics that influence effectiveness on patient outcomes. This guideline fills an important gap in psychosocial care, regarding the routine assessment of psychosocial health care needs.
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Affiliation(s)
- D Howell
- University Health Network (Princess Margaret Hospital), Toronto, ON, Canada.
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Howell D, Hack T, Oliver T, Chulak T, Mayo S, Aubin M, Chasen M, Earle C, Friedman A, Green E, Jones G, Jones J, Parkinson M, Payeur N, Sabiston C, Sinclair S. Survivorship services for adult cancer populations: a pan-Canadian guideline. Curr Oncol 2011; 18:e265-81. [PMID: 22184494 PMCID: PMC3224035 DOI: 10.3747/co.v18i6.956] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE Our goal was to develop evidence-based recommendations for the organization and structure of cancer survivorship services, and best-care practices to optimize the health and well-being of post-primary treatment survivors. This review sought to determine the optimal organization and care delivery structure for cancer survivorship services, and the specific clinical practices and interventions that would improve or maximize the psychosocial health and overall well-being of adult cancer survivors. DATA SOURCES We conducted a systematic search of the Inventory of Cancer Guidelines at the Canadian Partnership Against Cancer, the U.S. National Guideline Clearinghouse, the Canadian Medical Association InfoBase, medline (ovid: 1999 through November 2009), embase (ovid: 1999 through November 2009), Psychinfo (ovid: 1999 through November 2009), the Cochrane Library (ovid; Issue 1, 2009), and cinahl (ebsco: 1999 through December 2009). Reference lists of related papers and recent review articles were scanned for additional citations. METHODS Articles were selected for inclusion as evidence in the systematic review if they reported on organizational system components for survivors of cancer, or on psychosocial or supportive care interventions HOWELL et al. designed for survivors of cancer. Articles were excluded from the systematic review if they focused only on pediatric cancer survivor populations or on populations that transitioned from pediatric cancer to adult services; if they addressed only pharmacologic interventions or diagnostic testing and follow-up of cancer survivors; if they were systematic reviews with inadequately described methods; if they were qualitative or descriptive studies; and if they were opinion papers, letters, or editorials. DATA EXTRACTION AND SYNTHESIS Evidence was selected and reviewed by three members of the Cancer Journey Survivorship Expert Panel (SM, TC, TKO). The resulting summary of the evidence was guided further and reviewed by the members of Cancer Journey Survivorship Expert Panel. Fourteen practice guidelines, eight systematic reviews, and sixty-thee randomized controlled trials form the evidence base for this guidance document. These publications demonstrate that survivors benefit from coordinated post-treatment care, including interventions to address specific psychosocial, supportive care, and rehabilitative concerns. CONCLUSIONS Ongoing high-quality research is essential to optimize services for cancer survivors. Interventions that promote healthy lifestyle behaviours or that address psychosocial concerns and distress appear to improve physical functioning, psychosocial well-being, and quality of life for survivors.
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Affiliation(s)
| | - D. Howell
- Faculty of Nursing (Howell, Chulak, Mayo), Cancer Patient Education and Survivorship (Friedman), and Cancer Survivorship Program (J.M. Jones), University Health Network, Toronto, ON
| | - T.F. Hack
- Faculty of Nursing (Hack) and Manitoba Palliative Care Research Unit (Sabiston, Sinclair), University of Manitoba, Winnipeg, MB
- Patient and Family Support Services, CancerCare Manitoba, Winnipeg, MB
| | - T.K. Oliver
- Department of Oncology, McMaster University, Hamilton, ON
| | - T. Chulak
- Faculty of Nursing (Howell, Chulak, Mayo), Cancer Patient Education and Survivorship (Friedman), and Cancer Survivorship Program (J.M. Jones), University Health Network, Toronto, ON
| | - S. Mayo
- Faculty of Nursing (Howell, Chulak, Mayo), Cancer Patient Education and Survivorship (Friedman), and Cancer Survivorship Program (J.M. Jones), University Health Network, Toronto, ON
| | - M. Aubin
- Department of Family Medicine and Emergency Medicine, Université Laval, Quebec City, QC
| | - M. Chasen
- Palliative Care Program, University of Ottawa, Ottawa, ON
- Palliative Rehabilitation and Survivorship, Elisabeth Bruyere Research Institute, and Ottawa Regional Cancer Foundation, Ottawa, ON
| | - C.C. Earle
- Health Services Research Program, Cancer Care Ontario, and the Ontario Institute for Cancer Research, Toronto, ON
| | - A.J. Friedman
- Faculty of Nursing (Howell, Chulak, Mayo), Cancer Patient Education and Survivorship (Friedman), and Cancer Survivorship Program (J.M. Jones), University Health Network, Toronto, ON
- Cancer Care Ontario, Toronto, ON
| | - E. Green
- Cancer Care Ontario, Toronto, ON
| | - G.W. Jones
- Peel Regional Oncology Programme, Credit Valley Hospital, Mississauga, ON
- Department of Radiation Oncology (G.W. Jones) and Department of Psychiatry (J.M. Jones), University of Toronto, Toronto, ON
| | - J.M. Jones
- Faculty of Nursing (Howell, Chulak, Mayo), Cancer Patient Education and Survivorship (Friedman), and Cancer Survivorship Program (J.M. Jones), University Health Network, Toronto, ON
- Department of Radiation Oncology (G.W. Jones) and Department of Psychiatry (J.M. Jones), University of Toronto, Toronto, ON
| | - M. Parkinson
- Patient and Family Counselling Services, BC Cancer Agency, Vancouver (Parkinson) and Victoria (Payeur), BC
| | - N. Payeur
- Patient and Family Counselling Services, BC Cancer Agency, Vancouver (Parkinson) and Victoria (Payeur), BC
| | - C.M. Sabiston
- Department of Kinesiology and Physical Education, McGill University, Montreal, QC
| | - S. Sinclair
- Faculty of Nursing (Howell, Chulak, Mayo), Cancer Patient Education and Survivorship (Friedman), and Cancer Survivorship Program (J.M. Jones), University Health Network, Toronto, ON
- Faculty of Medicine, University of Calgary, and Spiritual Care Services, Alberta Health Services, Tom Baker Cancer Centre, Calgary, AB
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Mayo S, Monfort S, Roselló M, Orellana C, Oltra S, Armstrong J, Català V, Martínez F. De novo Interstitial Triplication of MECP2 in a Girl with Neurodevelopmental Disorder and Random X Chromosome Inactivation. Cytogenet Genome Res 2011; 135:93-101. [DOI: 10.1159/000330917] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2011] [Indexed: 01/08/2023] Open
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Quiroga R, Monfort S, Oltra S, Ferrer-Bolufer I, Roselló M, Mayo S, Martinez F, Orellana C. Partial Duplication of 18q Including a Distal Critical Region for Edwards Syndrome in a Patient with Normal Phenotype and Oligoasthenospermia: Case Report. Cytogenet Genome Res 2011; 133:78-83. [DOI: 10.1159/000322719] [Citation(s) in RCA: 7] [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] [Accepted: 10/11/2010] [Indexed: 11/19/2022] Open
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Yonas A, Mayo S, Ferrie A. Line junctures create a powerful illusion of moving surfaces. J Vis 2010. [DOI: 10.1167/9.8.62] [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] Open
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Mayo S, Acevedo D, Quiñones-Torrelo C, Canós I, Sancho M. Clinical laboratory automated urinalysis: comparison among automated microscopy, flow cytometry, two test strips analyzers, and manual microscopic examination of the urine sediments. J Clin Lab Anal 2008; 22:262-70. [PMID: 18623125 DOI: 10.1002/jcla.20257] [Citation(s) in RCA: 55] [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] [Indexed: 11/05/2022] Open
Abstract
Urinalysis is one of the habitual clinical laboratory procedures, which implies that one of the largest sample volumes currently requires significant labor to examine microscopic sediments. Different analyzers currently used to perform this task have been compared with the manual microscopic sediment examination. The Atlas Clinitek 10 (Bayer Corporation, Diagnostics Division, Tarrytown, NY) and Urisys 2400 (Hitachi Science Systems Ltd., Ibaraki, Japan) test strips analyzers and two automated urinalysis systems, Sysmex UF-100 (Sysmex Corporation Kobe, Japan) and IRIS iQ200 (International Imaging Remote Systems, Chatsworth, CA), have been considered. We assessed the concordance between the results obtained from 652 freshly collected urine samples for erythrocytes (RBC), leukocytes (WBC), squamous epithelial cells (EC), nitrites/bacteria, and crystals using the methodologies mentioned. A principal components analysis was performed in order to examine the correlation between these parameters. Instrument accuracy was also assessed. The Spearman's statistic (p) showed an adequate agreement between methods for RBC (iQ200=0.473; UF-100=0.439; Atlas=0.525; Urisys=0.539), WBC (iQ200=0.695; UF-100=0.761; Atlas=0.684: Urisys=0.620), and bacteria/nitrites (iQ200=0.538; UF-100=0.647; Atlas=0.532; Urisys=0.561) counts. By applying the Wilcoxon and McNemar tests, a concordance degree was found between 82-99 and 52-95% for the values obtained from the two test strips analyzers considered and from the iQ200 and UF-100 systems, respectively. From these results, we can conclude that both test strips analyzers are similar and, on the other hand, that automated urinalysis is needed to improve precision and the response time; but sometimes manual microscopic revisions are required, mainly when flags, because of crystals, are detected.
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Affiliation(s)
- S Mayo
- Departamento de Bioquímica, Servicio de Análisis Clínicos, Hospital Universitario Dr. Peset, Valencia, Spain
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Barbará T, Lexer C, Martinelli G, Mayo S, Fay MF, Heuertz M. Within-population spatial genetic structure in four naturally fragmented species of a neotropical inselberg radiation, Alcantarea imperialis, A. geniculata, A. glaziouana and A. regina (Bromeliaceae). Heredity (Edinb) 2008; 101:285-96. [PMID: 18648390 DOI: 10.1038/hdy.2008.65] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Studies of organisms on 'terrestrial islands' can improve our understanding of two unresolved issues in evolutionary genetics: the likely long-term effects of habitat fragmentation and the genetic underpinnings of continental species radiations in island-like terrestrial habitats. We have addressed both issues for four closely related plant species of the adaptive radiation Bromeliaceae, Alcantarea imperialis, A. geniculata, A. regina and A. glaziouana. All four are adapted to ancient, isolated inselberg rock outcrops in the Brazilian Atlantic rainforest and are thus long-term fragmented by nature. We used eight nuclear microsatellites to study within-population spatial genetic structure (SGS) and historical gene dispersal in nine populations of these species. Within-population SGS reflected known between-species differences in mating systems. The strongest SGS observed in A. glaziouana (Sp=0.947) was stronger than literature estimates available for plants. Analysis of short- and long-distance components of SGS identified biparental inbreeding, selfing and restricted seed dispersal as main determinants of SGS, with restricted pollen dispersal by bats contributing in some localities. The ability of Alcantarea spp. to colonize isolated inselbergs probably stems from their flexible mating systems and an ability to tolerate inbreeding. Short-ranging gene dispersal (average sigma=7-27 m) is consistent with a loss of dispersal power in terrestrial island habitats. Population subdivision associated with sympatric colour morphs in A. imperialis is accompanied by between-morph differences in pollen and seed dispersal. Our results indicate a high potential for divergence with gene flow in inselberg bromeliads and they provide base-line data about the long-term effects of fragmentation in plants.
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Affiliation(s)
- T Barbará
- Jodrell Laboratory, Royal Botanic Gardens, Kew, Richmond, Surrey, UK
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James D, Leadbeatter S, Davison A, Coyle T, Larkin A, Smith K, Mayo S, Hunt N. Sci Justice 2005; 45:227-228. [DOI: 10.1016/s1355-0306(05)71669-5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Fibre mapping, more commonly known as one-to-one taping, was developed in Germany approximately twenty years ago. The technique facilitates the distribution of fibres on a surface to be recorded. The impact of this technique on the investigation of serious crime has been reported in the European Fibre Group on several occasions. This paper represents a case study of the application of the technique. It is believed to be the first time that this technique has been successfully applied in the United Kingdom.
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Affiliation(s)
- T Coyle
- Forensic Alliance, F5, Culham Science Centre, Abingdon OX14 3ED, United Kingdom
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18
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Royo F, Björk N, Carlsson HE, Mayo S, Hau J. Impact of chronic catheterization and automated blood sampling (Accusampler) on serum corticosterone and fecal immunoreactive corticosterone metabolites and immunoglobulin A in male rats. J Endocrinol 2004; 180:145-53. [PMID: 14709153 DOI: 10.1677/joe.0.1800145] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.0] [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]
Abstract
Jugular catheters were inserted in nine male rats under general isofluorane anesthesia and the catheters were connected to a commercially available computerized blood sampling device (Accusampler). Blood samples (150 microl) were collected every 4 h during the first 24 h after surgery and every 12 h during the following 72 h until 94 h after surgery, when the animals were killed. All fecal pellets were collected at blood sampling. Serum corticosterone and fecal concentrations of immunoreactive corticosterone metabolites and immunoglobulin A (IgA) were quantified by ELISAs. In blood, high corticosterone concentrations (>200 ng/ml) were recorded in the first samples obtained after surgery, but the concentrations decreased steadily during the day and became cyclical, showing a diurnal variation with high levels during evenings and low levels in the mornings. The automatic blood sampling itself did not result in recordable increases in serum corticosterone concentrations. The time delay between the presence of elevated corticosterone levels in blood and in feces was approximately 12 h. Fecal immunoreactive corticosterone metabolite levels remained elevated during the 94 h study period after surgery. The fecal concentrations of IgA showed substantial between-animal variation and decreased non-significantly after the surgery. Like serum corticosterone, fecal IgA showed a diurnal variation in amounts excreted, in this case with high values in the morning and low values in the evening. The concentrations of fecal corticosterone and IgA were negatively correlated in samples obtained before surgery but no correlation existed after surgery. This indicates that fecal immunoreactive corticosterone metabolites, but not IgA, constitute a good marker of acute stress. For immunoreactive corticosterone metabolites as well as for IgA, the concentration in feces correlated well with total excretion, making single fecal samplings usable as a measure of total secretion.
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Affiliation(s)
- F Royo
- Division of Comparative Medicine, Department of Neuroscience, Uppsala University, BMC Box 572, 75123 Uppsala, Sweden
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19
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Mayo S, Davis T, Gureyev T, Miller P, Paganin D, Pogany A, Stevenson A, Wilkins S. X-ray phase-contrast microscopy and microtomography. Opt Express 2003; 11:2289-302. [PMID: 19471337 DOI: 10.1364/oe.11.002289] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
In-line phase contrast enables weakly absorbing specimens to be imaged successfully with x-rays, and greatly enhances the visibility of fine scale structure in more strongly absorbing specimens. This type of phase contrast requires a spatially coherent beam, a condition that can be met by a microfocus x-ray source. We have developed an x-ray microscope, based on such a source, which is capable of high resolution phase-contrast imaging and tomography. Phase retrieval enables quantitative information to be recovered from phase-contrast microscope images of homogeneous samples of known composition and density, and improves the quality of tomographic reconstructions.
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Durant AA, Fente CA, Franco CM, Vázquez BI, Mayo S, Cepeda A. Development of a diphasic dialysis method for the extraction/purification of residues of ethinylestradiol in hair of cattle, and determination by gas chromatography-tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2002; 766:251-6. [PMID: 11824813 DOI: 10.1016/s0378-4347(01)00504-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A confirmatory method for the analysis of ethinylestradiol extracted from cattle hair was developed. After the extraction of the xenobiotic from the hair, by using alkaline digestion, the purification of the extract was carried out by employing diphasic dialysis. For the optimization of the technique several parameters was evaluated such as pH, extraction solvents, temperatures, times and agitation speeds. The detection and confirmation of the steroid was accomplished by using a GC-MS2 ion trap system after trimethylsilylation. The calibration curve was linear over the range of 4-20 ng/g. The detection and quantification limit were 0.52 and 0.80 ng/g respectively; with recoveries up to 94%.
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Affiliation(s)
- A A Durant
- Departamento de Química Analítica, Nutrición y Bromatologia, Facultad de Veterinaria, Universidad de Santiago de Compostela, Spain
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21
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Gureyev TE, Mayo S, Wilkins SW, Paganin D, Stevenson AW. Quantitative in-line phase-contrast imaging with multienergy X rays. Phys Rev Lett 2001; 86:5827-5830. [PMID: 11415368 DOI: 10.1103/physrevlett.86.5827] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2000] [Indexed: 05/23/2023]
Abstract
We present a new method for quantitative nondestructive characterization of objects by x-ray phase-contrast imaging. Spatial distributions of the projected values of the complex refractive index in the sample are reconstructed by processing near-field images collected at a fixed sample-to-detector distance using a polychromatic incident beam and an energy-sensitive area detector, such as a CCD used in the photon-counting spectroscopy mode. The method has the potential advantages of decreased radiation dose and increased accuracy compared to conventional techniques of x-ray imaging.
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Affiliation(s)
- T E Gureyev
- Commonwealth Scientific and Industrial Research Organisation, PB 33, Clayton South, VIC 3169, Australia
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22
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Abstract
A method for the determination of nine corticosteroids in bovine liver was developed. The liquid-liquid extraction method consisted in the addition of sodium hydroxide to the tissue sample followed by extraction with ethyl acetate. After centrifugation, the extract was evaporated to dryness and the residue redissolved in acetonitrile. The removal of fats was performed with n-hexane and the acetonitrile layer was evaporated. Afterwards, analysis of the extracts was performed using high-performance liquid chromatography with chemiluminescence detection employing luminol as reagent. The recovery curves, performed at five spiking levels (different for each corticosteroid), showed that recoveries of at least 70.5% could be obtained from liver. The chemiluminescence detection gave satisfactory results with respect to sensitivity, and the LOQ ranged from 0.13 ppb for prednisolone to 8.40 ppb for betamethasone. The maximum mean RSD was 4.8% and 7.3% for intra- and inter-day assay, respectively.
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Affiliation(s)
- Y Iglesias
- Laboratorio de Higiene e Inspección de Alimentos, Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Veterinaria, Universidad de Santiago de Compostela, E-27002 Lugo, Spain
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Iglesias Y, Fente CA, Vázquez B, Franco C, Cepeda A, Mayo S, Gigosos PG. Determination of dexamethasone in bovine liver by chemiluminescence high-performance liquid chromatography. J Agric Food Chem 1999; 47:4275-4279. [PMID: 10552801 DOI: 10.1021/jf990334b] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A new method for the determination of dexamethasone (9alpha-fluoro-11beta,17alpha,21-trihydroxy-16alpha -methylpregna-1, 4-diene-3,20-dione) in bovine liver was developed. This new liquid-liquid extraction method comprises the addition of sodium hydroxide to the tissue sample followed by extraction with ethyl acetate. After centrifugation, the extract is evaporated to dryness and the residue dissolved in acetonitrile. The cleaning of the fat is performed with n-hexane, and the acetonitrile layer is evaporated. Analysis of the extracts is performed using high-performance liquid chromatography with chemiluminescence detection employing luminol as CL reagent. A series of recovery curves performed at spiking levels of 50, 30, 10, 5, and 2.5 ppb show that at least 80% of DEX can be recovered from liver and that the chemiluminescence detection yields satisfactory results with respect to sensitivity (LOD 0.2 ppb), reproducibility (CV% 10.7) and repeatability (CV% 6.2-8.9).
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Affiliation(s)
- Y Iglesias
- Laboratorio de Salud Pública de Lugo, Consellería de Sanidade e Benestar Social, Xunta de Galicia, Lugo, Spain
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Abstract
The links are described between analytic linear thinking and the associate modes of imagination and metaphor, explored and experienced in a weekly art therapy group held in the Studio, St. Catherine's Hospice, Crawley, West Sussex.
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Abstract
Alpha 1-adrenergic pathways are involved in morphine-induced suppression of murine splenic NK activity. To investigate the level of involvement following morphine administration, the peripheral acting alpha-adrenoceptor antagonist doxazosin and the broad acting alpha-adrenoceptor antagonist phentolamine were employed. Mice preadministered phentolamine (2.0 mg/kg) exhibited a modest but insignificant suppression of splenic NK activity following morphine administration while mice preadministered doxazosin (1.0 mg/kg) or vehicle showed a significant decrease in splenic NK activity following morphine administration. Morphine was also found to significantly (P < 0.01) increase splenic serotonin levels (14.88 +/- 1.62 ng/mg) relative to saline-treated controls (7.3 +/- 0.9 ng/mg). Both phentolamine and doxazosin pretreatment completely or partially blocked morphine-mediated elevation of splenic serotonin levels, respectively. Morphine administration decreased the ability of NK cells to form conjugates with target (YAC-1 lymphoma) cells and decreased the number of active killer cells within the conjugate population. Collectively, these results implicate central alpha-adrenergic involvement following acute morphine administration in suppressing splenic NK activity indirectly through a reduction in the number of effector-target conjugates and active cytolytic effector cells.
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Affiliation(s)
- D J Carr
- Department of Microbiology, LSU Medical Center, New Orleans 70112-1393
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Garza HH, Mayo S, Bowen WD, DeCosta BR, Carr DJ. Characterization of a (+)-azidophenazocine-sensitive sigma receptor on splenic lymphocytes. J Immunol 1993; 151:4672-80. [PMID: 7691955] [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: 01/26/2023]
Abstract
A study was undertaken to structurally define and functionally assess sigma receptors on splenocytes using the highly selective sigma ligand (+)-azidophenazocine. Radioreceptor assays under reduced lighting show (+)-azidophenazocine can effectively block the binding of sigma ligands [3H]haloperidol (IC50 = 30 nM, Ki = 19.0 nM) and [3H](+)-pentazocine (IC50 = 40 nM, Ki = 350 nM), but not the dopamine (D2) ligand [3H]spiperone (IC50 > 5 microM) to splenic lymphocytes. [3H](+)-1-Propyl-3-(3-hydroxyphenyl)piperidine ([3H](+)-PPP) sites (Kd = 40.8 nM, Bmax = 2.32 pmol/mg) were also present on these lymphocytes. Additional studies using [3H](+)-azidophenazocine indicated the presence of saturable sites (Kd = 29.7 nM, Bmax = 760 fmol/mg) on splenic lymphocytes. There are no significant differences in affinity between sites found on T-enriched (Kd = 59 +/- 47 nM) and B-enriched lymphocytes (Kd = 23 +/- 5 nM). Photoaffinity labeling studies of splenocyte membranes with [3H](+)-azidophenazocine revealed a protein migrating at an apparent m.w. of 57 kDa under reducing and nonreducing conditions on SDS-PAGE. The labeling was specific because pretreatment with unlabeled haloperidol, (+)-PPP, 1,3 di(2-tolyl)guanidine, (+)-pentazocine, and (+)-azidophenazocine before cross-linking competed away > 75% of the radioactivity associated with the protein, whereas (-)-pentazocine and naloxone were significantly less effective. This data together with the observation that both (+)-azidophenazocine or haloperidol inhibit Con A-induced production of IFN by splenocytes, indicates that lymphocytes possess a biologically relevant sigma receptor.
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Affiliation(s)
- H H Garza
- Department of Microbiology, Immunology, and Parasitology, LSU Medical Center, New Orleans 70112-1393
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Garza HH, Mayo S, Bowen WD, DeCosta BR, Carr DJ. Characterization of a (+)-azidophenazocine-sensitive sigma receptor on splenic lymphocytes. The Journal of Immunology 1993. [DOI: 10.4049/jimmunol.151.9.4672] [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: 01/02/2023]
Abstract
Abstract
A study was undertaken to structurally define and functionally assess sigma receptors on splenocytes using the highly selective sigma ligand (+)-azidophenazocine. Radioreceptor assays under reduced lighting show (+)-azidophenazocine can effectively block the binding of sigma ligands [3H]haloperidol (IC50 = 30 nM, Ki = 19.0 nM) and [3H](+)-pentazocine (IC50 = 40 nM, Ki = 350 nM), but not the dopamine (D2) ligand [3H]spiperone (IC50 > 5 microM) to splenic lymphocytes. [3H](+)-1-Propyl-3-(3-hydroxyphenyl)piperidine ([3H](+)-PPP) sites (Kd = 40.8 nM, Bmax = 2.32 pmol/mg) were also present on these lymphocytes. Additional studies using [3H](+)-azidophenazocine indicated the presence of saturable sites (Kd = 29.7 nM, Bmax = 760 fmol/mg) on splenic lymphocytes. There are no significant differences in affinity between sites found on T-enriched (Kd = 59 +/- 47 nM) and B-enriched lymphocytes (Kd = 23 +/- 5 nM). Photoaffinity labeling studies of splenocyte membranes with [3H](+)-azidophenazocine revealed a protein migrating at an apparent m.w. of 57 kDa under reducing and nonreducing conditions on SDS-PAGE. The labeling was specific because pretreatment with unlabeled haloperidol, (+)-PPP, 1,3 di(2-tolyl)guanidine, (+)-pentazocine, and (+)-azidophenazocine before cross-linking competed away > 75% of the radioactivity associated with the protein, whereas (-)-pentazocine and naloxone were significantly less effective. This data together with the observation that both (+)-azidophenazocine or haloperidol inhibit Con A-induced production of IFN by splenocytes, indicates that lymphocytes possess a biologically relevant sigma receptor.
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Affiliation(s)
- H H Garza
- Department of Microbiology, Immunology, and Parasitology, LSU Medical Center, New Orleans 70112-1393
| | - S Mayo
- Department of Microbiology, Immunology, and Parasitology, LSU Medical Center, New Orleans 70112-1393
| | - W D Bowen
- Department of Microbiology, Immunology, and Parasitology, LSU Medical Center, New Orleans 70112-1393
| | - B R DeCosta
- Department of Microbiology, Immunology, and Parasitology, LSU Medical Center, New Orleans 70112-1393
| | - D J Carr
- Department of Microbiology, Immunology, and Parasitology, LSU Medical Center, New Orleans 70112-1393
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Carr DJ, Mayo S, Woolley TW, DeCosta BR. Immunoregulatory properties of (+)-pentazocine and sigma ligands. Immunol Suppl 1992; 77:527-31. [PMID: 1493925 PMCID: PMC1421665] [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: 12/27/2022]
Abstract
(+)-Pentazocine, phencyclidine, and other sigma ligands including 1,3-di-(o)-tolylguanidine (DTG), (+)-1-propyl-3-(3-hydroxyphenyl) piperidine [(+)-PPP] and haloperidol were investigated for their potential immunoregulatory properties. High concentrations (10(-5) M) of DTG and haloperidol were found to suppress in vitro murine splenocyte natural killer activity while equivalent concentrations of (+)-pentazocine, (-)-pentazocine and (+)-PPP were without effect. In a reciprocal fashion, lower doses (10(-9) M) of DTG enhanced natural killer activity. Sigma ligands were also found to affect in vitro polyclonal immunoglobulin production following mitogen stimulation. Specifically, high concentrations (10(-6) M) of haloperidol significantly (P < 0.001) suppressed pokeweed mitogen (PWM)-stimulated IgG and IgM production, yet enhanced lipopolysaccharide (LPS)-stimulated IgM production by murine splenocytes. Lower concentrations (10(-8) to 10(-10) M) enhanced (two- to fourfold) PWM-induced IgM production and LPS-stimulated IgG and IgM production. At high concentrations (10(-6)), (+)-pentazocine suppressed (P < 0.01) LPS-induced polyclonal IgG and IgM but enhanced (P < 0.01) PWM-induced IgM production. Both DTG and (-)-pentazocine (10(-8) to 10(-10) M) significantly augmented (two- to threefold) LPS-stimulated murine splenocyte production of polyclonal IgM. Intracellularly, (-)-pentazocine (10(-9) M), haloperidol (10(-7) M), DTG (10(-7) M) and (+)-PPP (10(-5) to 10(-9) M) enhanced forskolin (10(-6) M)-induced cAMP production in splenic lymphocytes while (+)-pentazocine was without effect. Collectively, the data suggest functional and biologically relevant sigma receptors on cells of the immune system.
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Affiliation(s)
- D J Carr
- Department of Microbiology, Immunology and Parasitology, Louisiana State University Medical Center, New Orleans 70112-1393
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Chatterjee VK, Madison LD, Mayo S, Jameson JL. Repression of the human glycoprotein hormone alpha-subunit gene by glucocorticoids: evidence for receptor interactions with limiting transcriptional activators. Mol Endocrinol 1991; 5:100-10. [PMID: 1708098 DOI: 10.1210/mend-5-1-100] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.3] [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: 12/28/2022] Open
Abstract
Expression of the glycoprotein hormone alpha gene is regulated divergently by glucocorticoids in different cell types. Coexpression of the glucocorticoid receptor (GR) with an alpha-CAT reporter gene caused activation of alpha promoter activity in fibroblasts, but repression in JEG-3 choriocarcinoma cells, indicating that cell-specific factors dictate positive vs. negative regulation of this promoter by GR. Cell-specific sequences and other enhancer elements in the the alpha gene have been relatively well characterized in JEG-3 cells, and this model was used to further examine the mechanism of transcriptional repression by glucocorticoids. Promoter mutagenesis indicated that the degree of GR-mediated repression was impaired by a variety of deletional and site-directed mutations between -171 and -111 bp, a region that includes both cell-specific and cAMP response elements (CREs). In an attempt to further localize a negative glucocorticoid response element (GRE) sequence, binding studies were used to assess GR interactions with alpha promoter DNA sequences. Using avidin-biotin complex DNA binding assays, a series of overlapping alpha promoter DNA sequences between -170 to 29 basepairs were tested, but each failed to bind GR, whereas a control GRE avidly bound receptor. Similarly, in competition assays in transfected CV-1 cells, the alpha gene 5'-flanking sequence did not compete for GR stimulation of a glucocorticoid responsive reporter gene, whereas a sequence that contains known GR-binding sites (murine mammary tumor virus) effectively inhibited GR-mediated expression. The absence of high affinity GR-binding sites in the alpha promoter suggested that mutations that affected GR inhibition may have eliminated recognition sites for transactivators, which are themselves targets for the GR, rather than altering specific negative GRE sites in the DNA sequence. To examine this possibility, GR repression was studied using chimeric transcription factors. The transcription-activating domains of several different proteins (CREB, thyroid hormone receptor, or VP16) were linked to the DNA-binding domain of Gal-4, and transcription was driven by the Gal-4 recognition site (UAS). GR markedly repressed transactivation by Gal-4-CREB and, to a lesser degree, the Gal-4-thyroid hormone receptor and Gal-4-VP16 chimeric proteins. Repression occurred when UAS was linked to either the alpha promoter or to the E1B promoter. Thus, inhibition occurs in the absence of either the CRE or the proximal alpha promoter. These results support a mechanism in which GR-mediated repression in JEG-3 cells occurs by receptor interference with the transactivating potential of enhancer-binding proteins or associated transcription factors.
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Affiliation(s)
- V K Chatterjee
- Thyroid Unit, Massachusetts General Hospital, Harvard Medical School, Boston 02114
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Dorsey J, Yentsch CM, Mayo S, McKenna C. Rapid analytical technique for the assessment of cell metabolic activity in marine microalgae. Cytometry 1989; 10:622-8. [PMID: 2776579 DOI: 10.1002/cyto.990100518] [Citation(s) in RCA: 118] [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] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A standard method for the assessment of cell viability has been developed for marine phytoplankton using an inexpensive stain, fluorescein diacetate (FDA), at .75 microM for 10 min. A flow cytometer was used as the fluorescence detector, providing an assessment of viability for each individual particle. Cell size and chlorophyll fluorescence per cell were assessed simultaneously, permitting an assignment of viability to specific subpopulations, thus increasing the power of the technique. A reasonable correspondence between FDA mean fluorescence intensity per cell and an independent metabolic indicator, photosynthetic capacity measured by 14C, was found. Both FDA mean fluorescence intensity and photosynthetic capacity vary as a function of cell volume. Recovery after extended periods of darkness indicate that cells that are FDA negative may not be dead, but merely quiescent or inactive.
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Affiliation(s)
- J Dorsey
- Bigelow Laboratory for Ocean Sciences, West Boothbay Harbor, Maine 04575
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Abstract
We evaluated the use of a needle catheter jejunostomy in 83 consecutive patients who underwent complicated abdominal operations. We used the needle catheter jejunostomy to deliver immediate postoperative nutrition (mean, 1,700 kcal/day) in 66 patients for a range of 4 to 80 days. In addition, the needle catheter jejunostomy was used to provide all maintenance fluid and electrolyte needs and to administer almost all required medications. No serious complications were related to use of the needle catheter jejunostomy, although easily controlled diarrhea occurred in 16 patients (19%). We concluded that the needle catheter jejunostomy is a safe and cost-effective means of delivering postoperative nutrition, fluid and electrolytes, and most medications in selected patients undergoing high-risk abdominal operations.
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Affiliation(s)
- M G Sarr
- Gastroenterology Research Unit, Mayo Clinic, Rochester, MN 55905
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Lucatorto TB, McIlrath TJ, Mayo S, Furumoto HW. High-stability coaxial flashlamp-pumped dye laser. Appl Opt 1980; 19:3178-3180. [PMID: 20234582 DOI: 10.1364/ao.19.003178] [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] [Indexed: 05/28/2023]
Abstract
Measurements on the stability of a coaxial flashlamp-pumped dye laser demonstrated that the quality of the output can be dramatically improved by isolating the dye cell thermally from the flashlamp and ensuring uniform axially symmetric flow of the dye throughout the cell. A quadraxial laser tube in which the dye cell is surrounded by an evacuated annulus to provide thermal isolation and is terminated by specially designed end caps to provide uniform injection and removal of the dye solution was tested in a standard cavity with a 1200-line/mm grating in Littrow configuration as the dispersive element. The performance characteristics were 1-mrad divergence, 0.5-A bandwidth of the spectral distribution, and 0.04-A jitter of wavelength at maximum intensity.
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Pardo EA, Costa Bianchi JE, Barata AD, Quaglio HC, Mayo S, Roca D, Baldi EJ. [Sex chromatin and karyotype in primary amenorrhea]. Obstet Ginecol Lat Am 1973; 31:127-43. [PMID: 4806741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Pardo EA, Costa Bianchi JE, Barata AD, Quaglio HC, Mayo S, Roca D, Baldi EJ. [Sex chromatin and karyotype in primary amenorrhea]. Obstet Ginecol Lat Am 1973; 31:1-40. [PMID: 4806736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Spivak L, Mésigos P, Carbonetto E, Levinton M, Mayo S. [Ileocecal pathology. Commentary on several cases]. Prensa Med Argent 1965; 52:2201-3. [PMID: 5879639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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40
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