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Roque J, Marques P, Aparício D, Dupont J, Reis D, Bugalho M. GIANT MULTINODULAR GOITER IN COWDEN SYNDROME. Acta Endocrinol (Buchar) 2022; 18:397. [PMID: 36699173 PMCID: PMC9867802 DOI: 10.4183/aeb.2022.397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- J. Roque
- Endocrinology, Centro Hospitalar Universitario Lisboa Norte EPE, Lisbon, Portugal
| | - P. Marques
- Endocrinology, Centro Hospitalar Universitario Lisboa Norte EPE, Lisbon, Portugal
| | - D. Aparício
- General Surgery, Centro Hospitalar Universitario Lisboa Norte EPE, Lisbon, Portugal
| | - J. Dupont
- Genetics, Centro Hospitalar Universitario Lisboa Norte EPE, Lisbon, Portugal
| | - D. Reis
- Endocrinology, Centro Hospitalar Universitario Lisboa Norte EPE, Lisbon, Portugal
- University of Lisbon, Faculty of Medicine, Lisbon, Portugal
| | - M.J. Bugalho
- Endocrinology, Centro Hospitalar Universitario Lisboa Norte EPE, Lisbon, Portugal
- University of Lisbon, Faculty of Medicine, Lisbon, Portugal
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Santos O, Reis D, Oliveira-Filho A, Oliveira C, Figueiredo Neto A. Structure and local order of lyotropic cholesteric calamitic phases: The effect of the chiral molecule. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118097] [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]
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Pereira NC, Mendes A, Reis D, Dias M, Coutinho D, Costa T, Silva E, Campainha S, Conde S, Barroso A. EP1.16-16 Pembrolizumab as First Therapeutic Line in Non-Small Cell Lung Cancer – The Experience of a Portuguese Tertiary Hospital. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2381] [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: 10/25/2022]
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Reis D, Mendes A, China N, Dias M, Coutinho D, Silva E, Campainha S, Costa T, Conde S, Barroso A. EP1.04-10 Nivolumab in Non-Small Cell Lung Cancer (NSCLC): A Real-Life Study. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2140] [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]
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Mendes M, China N, Reis D, Campainha S, Dias M, Barroso A. P1.04-61 Neutrophil-Lymphocyte Ratio: A Predictive Biomarker of Immunotherapy in Lung Cancer? J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.964] [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: 10/25/2022]
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Reis D, China N, Dias M, Coutinho D, Silva E, Campainha S, Costa T, Conde S, Cirnes L, Barroso A. EP1.01-80 Progressive Disease with T790M Mutation vs Non-T790M Mutation in EGFR Positive Patients Treated with Tyrosine Kinase Inhibitors. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2053] [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: 10/25/2022]
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Reis D, Marques C, Dias M, Campainha S, Cirnes L, Barroso A. Mutational profile of non-small cell lung cancer patients: Use of next-generation sequencing. Pulmonology 2019; 26:50-53. [PMID: 31164287 DOI: 10.1016/j.pulmoe.2019.05.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/15/2019] [Accepted: 05/06/2019] [Indexed: 11/18/2022] Open
Affiliation(s)
- D Reis
- Pulmonology Department, Vila Nova de Gaia-Espinho Hospital Center, Conceição Fernandes Street, 1079 Vila Nova de Gaia, Portugal.
| | - C Marques
- Pulmonology Department, Vila Nova de Gaia-Espinho Hospital Center, Conceição Fernandes Street, 1079 Vila Nova de Gaia, Portugal
| | - M Dias
- Thoracic Tumors Multidisciplinary Unit, Pulmonology Department, Vila Nova de Gaia-Espinho Hospital Center, Conceição Fernandes Street, 1079 Vila Nova de Gaia, Portugal
| | - S Campainha
- Thoracic Tumors Multidisciplinary Unit, Pulmonology Department, Vila Nova de Gaia-Espinho Hospital Center, Conceição Fernandes Street, 1079 Vila Nova de Gaia, Portugal
| | - L Cirnes
- Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), Portugal
| | - A Barroso
- Thoracic Tumors Multidisciplinary Unit, Pulmonology Department, Vila Nova de Gaia-Espinho Hospital Center, Conceição Fernandes Street, 1079 Vila Nova de Gaia, Portugal
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Gerecitano J, Zheng H, Mongay Soler L, Ito R, Reis D, Lu C, Shen J, Childs B, Zinzani P. Phase III randomized, double-blind, controlled studies of the PI3K inhibitor copanlisib in combination with rituximab or rituximab-based chemotherapy in subjects with relapsed indolent B-cell non-Hodgkin’s lymphoma (iNHL): CHRONOS-3 and CHRONOS-4. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx373.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Gerecitano J, Santoro A, Leppä S, Kim T, Kim W, Janssens A, Pedersen M, Reis D, Granvil C, Shen J, Zheng H, Childs B, Zinzani P. SAFETY RUN-IN OF COPANLISIB IN COMBINATION WITH RITUXIMAB PLUS BENDAMUSTINE IN PATIENTS WITH RELAPSED INDOLENT NON-HODGKIN'S LYMPHOMA. Hematol Oncol 2017. [DOI: 10.1002/hon.2439_187] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- J. Gerecitano
- Lymphoma Service/Developmental Therapy Clinic; Memorial Sloan-Kettering Cancer Center; New York USA
| | - A. Santoro
- Department of Oncology and Hematology; Humanitas Cancer Center, Humanitas Clinical and Research Center; Rozzano (MI) Italy
| | - S. Leppä
- Department of Oncology; Helsinki University Central Hospital Cancer Center; Helsinki Finland
| | - T. Kim
- Department of Internal Medicine; Seoul National University Hospital; Seoul Korea, Republic of
| | - W. Kim
- Division of Hematology and Oncology, Department of Medicine; Sungkyunkwan University School of Medicine, Samsung Medical Center; Seoul Korea, Republic of
| | - A. Janssens
- Dienst Haematologie, UZ Leuven; Leuven Belgium
| | - M. Pedersen
- Department of Hematology, HS Rigshospitalet; Copenhagen Denmark
| | - D. Reis
- Clinical Development, Bayer SA; São Paulo Brazil
| | - C. Granvil
- Clinical Pharmacology; Bayer HealthCare Pharmaceuticals Inc; Whippany NJ USA
| | - J. Shen
- Clinical Statistics; Bayer HealthCare Pharmaceuticals Inc; Whippany NJ USA
| | - H. Zheng
- Clinical Development; Bayer HealthCare Pharmaceuticals Inc; Whippany NJ USA
| | - B.H. Childs
- Clinical Development; Bayer HealthCare Pharmaceuticals Inc; Whippany NJ USA
| | - P. Zinzani
- Department of Hematology; Institute of Hematology "L. e A. Seràgnoli"- University of Bologna; Bologna Italy
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Bolling C, Leite M, Reis D. FUTSAL ATHLETES' ASSESSMENT: PRESEASON AND SIX MONTHS FOLLOW UP. Br J Sports Med 2014. [DOI: 10.1136/bjsports-2014-093494.30] [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: 11/04/2022]
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Mendes de Almeida Gomide Leite M, Bolling C, Reis D, Bittencourt N, Gonçalves G. TIME LOSS AND INJURY CHANGES WITH MULTIDISCIPLINARY PREVENTIVE APPROACH IN FEMALE VOLLEYBALL PLAYERS. Br J Sports Med 2014. [DOI: 10.1136/bjsports-2014-093494.176] [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: 11/04/2022]
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Bolling C, Leite M, Reis D. JUNIOR GYMNASTIC: INCIDENCE AND INJURY PROFILE. Br J Sports Med 2014. [DOI: 10.1136/bjsports-2014-093494.31] [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: 11/03/2022]
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Mendes de Almeida Gomide Leite M, Bolling C, Reis D. COMPARISON OF FUNCTIONAL MOVEMENT SCREENING (FMS) SCORE IN FUTSAL PLAYERS. Br J Sports Med 2014. [DOI: 10.1136/bjsports-2014-093494.175] [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: 11/03/2022]
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14
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Leite M, Bolling C, Reis D. Epidemiological indoor soccer's team injuries profile in 2010 National League. J Sci Med Sport 2012. [DOI: 10.1016/j.jsams.2012.11.314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Bolling C, Reis D, Leite M. How to make surveillance for future athletes? J Sci Med Sport 2012. [DOI: 10.1016/j.jsams.2012.11.372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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16
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Bolling C, Leite M, Reis D. Athlete's Health Index (AHI)–An injury's impact indicator. J Sci Med Sport 2012. [DOI: 10.1016/j.jsams.2012.11.306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Akpinar E, Reis D, Figueiredo Neto AM. Lyotropic mixture made of potassium laurate/1-undecanol/K2SO4/water presenting high birefringences and large biaxial nematic phase domain: a laser conoscopy study. Eur Phys J E Soft Matter 2012; 35:50. [PMID: 22718499 DOI: 10.1140/epje/i2012-12050-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Revised: 04/18/2012] [Accepted: 05/30/2012] [Indexed: 06/01/2023]
Abstract
The lyotropic liquid crystalline quaternary mixture made of potassium laurate (KL), potassium sulphate, 1-undecanol and water was investigated by experimental optical methods (optical microscopy and laser conoscopy). In a particular temperature and relative concentrations range, the three nematic phases (two uniaxial and one biaxial) were identified. The biaxial domain in the temperature/KL concentration surface is larger when compared to other lyotropic mixtures. Moreover, this new mixture gives nematic phases with higher birefringence than similar systems. The behavior of the symmetric tensor order parameter invariants σ (3) and σ (2) calculated from the measured optical birefringences supports that the uniaxial-to-biaxial transitions are of second order, described by a mean-field theory.
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Affiliation(s)
- E Akpinar
- Arts and Sciences Faculty, Department of Chemistry, Abant Izzet Baysal University, Bolu, Turkey
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Cryan JP, Glownia JM, Andreasson J, Belkacem A, Berrah N, Blaga CI, Bostedt C, Bozek J, Buth C, DiMauro LF, Fang L, Gessner O, Guehr M, Hajdu J, Hertlein MP, Hoener M, Kornilov O, Marangos JP, March AM, McFarland BK, Merdji H, Petrović VS, Raman C, Ray D, Reis D, Tarantelli F, Trigo M, White JL, White W, Young L, Bucksbaum PH, Coffee RN. Auger electron angular distribution of double core-hole states in the molecular reference frame. Phys Rev Lett 2010; 105:083004. [PMID: 20868096 DOI: 10.1103/physrevlett.105.083004] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2010] [Indexed: 05/29/2023]
Abstract
The Linac Coherent Light Source free electron laser is a source of high brightness x rays, 2×10(11) photons in a ∼5 fs pulse, that can be focused to produce double core vacancies through rapid sequential ionization. This enables double core vacancy Auger electron spectroscopy, an entirely new way to study femtosecond chemical dynamics with Auger electrons that probe the local valence structure of molecules near a specific atomic core. Using 1.1 keV photons for sequential x-ray ionization of impulsively aligned molecular nitrogen, we observed a rich single-site double core vacancy Auger electron spectrum near 413 eV, in good agreement with ab initio calculations, and we measured the corresponding Auger electron angle dependence in the molecular frame.
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Affiliation(s)
- James P Cryan
- SLAC National Accelerator Laboratory, The PULSE Institute for Ultrafast Energy Science, 2575 Sand Hill Road, Menlo Park, California 94025, USA.
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Abstract
The purpose of this study was to identify the perceptions of nurses toward the effectiveness and safety, as well as their recommendations for and personal use of complementary and alternative medical therapies. A, random sample of 1000 nurses throughout the United States were surveyed using a three-wave mailing. About half of the respondents perceived there was conclusive evidence or preponderance of evidence that five therapies were effective: biofeedback, chiropractic, meditation/relaxation, multi-vitamins, and massage therapy. The same amount of nurses also perceived five therapies as definitely safe: hypnotherapy, chiropractic, acupressure, acupuncture, and healing touch. However, the nurses were most likely to recommend (regularly or periodically) four therapies: multivitamins, massage, meditation/relaxation, and pastoral/spiritual counseling. The vast majority (79%) of nurses perceived their professional preparation in this area to be fair or poor.
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Affiliation(s)
- P G Brolinson
- Sports Care & Welltrack, Toledo Hospital, OH 43606, USA
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Do Carmo I, Reis D, Varandas P, Bouça D, Santo DP, Neves A, André I, Sampaio D, Galvão-Teles A. [Epidemiology of anorexia nervosa. Prevalence of anorexia nervosa in female adolescents from the districts of Lisboa and Setubal]. ACTA MEDICA PORT 2001; 14:301-16. [PMID: 11552328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
UNLABELLED Prevalence studies of anorexia nervosa (AN) have shown differences depending of the country and method applied. The partial syndrome is being emphasized. There has been no epidemiological study done on AN in the Portuguese population of continental Portugal. Our objectives were: 1) to study the prevalence of AN in Portuguese populations; 2) to study the presence of partial syndrome and of body image disturbance; 3) to calculate the number of girls dieting; 4) to correlate with other variables. A population of 2,398 girls ranging 10 to 21 years old, from 30 State secondary schools in the Lisbon and Setubal districts were studied. A questionnaire was answered with questions allowing assessment of all DSM IIIR criteria for AN. RESULTS Prevalence of AN--0.37%, partial syndrome--12.6%, body image disturbance without weight loss--7%, wish to decrease weight in normal or low weight girls--38%, overweight--15.3%, the peak of age for AN was 15 years, the most prevalent socio-economic class for AN was 2 (scale 1 (higher) to 5). School performance was worse with AN and the age menarche was sooner.
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Affiliation(s)
- I Do Carmo
- Serviços de Endocrinologia e Psiquiatria, Hospital de Santa Maria, Lisboa
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Abstract
Actin-based motor protein requirements and nitric oxide (NO) production are important features of macrophage activity during phagocytosis or microbicidal processes. Different classes of myosins contribute directly or indirectly to phagocytosis by providing mechanical force for phagosome closure or organelle movement. Recent data have shown the presence of myosins IC, II, V and IXb in phagosomes of bone marrow-derived murine macrophages. In our investigation we demonstrated the presence of different classes of myosins in J774 macrophages. We also analyzed the effect of gamma interferon (IFN-gamma), with or without calcium ionophore or cytochalasin B, on myosins as well as on inducible nitric oxide synthase (iNOS) expression and NO production. Myosins IC, II, Va, VI and IXb were identified in J774 macrophages. There was an increase of myosin V expression in IFN-gamma-treated cells. iNOS expression was increased by IFN-gamma treatment, while calcium ionophore and cytochalasin B had a negative influence on both myosin and iNOS expression, which was decreased. The increases in NO synthesis were reflected by increased iNOS expression. Macrophages activated by IFN-gamma released significant amounts of NO when compared to control groups. In contrast, NO production by calcium ionophore- and cytochalasin B-treated cells was similar to that of control cells. These results suggest that IFN-gamma is involved in macrophage activation by stimulating protein production to permit both phagocytosis and microbicidal activity.
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Affiliation(s)
- D Reis
- Departamento de Imunologia, Microbiologia e Parasitologia, Universidade Federal de Uberlândia, Brasil
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Piletz JE, Zhu H, Ordway G, Stockmeier C, Dilly G, Reis D, Halaris A. Imidazoline receptor proteins are decreased in the hippocampus of individuals with major depression. Biol Psychiatry 2000; 48:910-9. [PMID: 11074229 DOI: 10.1016/s0006-3223(00)00892-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND A downregulation of I(2)-imidazoline binding sites has been reported in frontal cortices of depressed suicide victims, according to I(2)-radioligand binding and confirmed by Western blotting. We now report Western blots of imidazoline receptor proteins in hippocampi of subjects with and without depression at the time of death. METHODS Postmortem diagnoses were obtained from 17 cases of Axis I major depressive disorder and 17 cases without Axis I psychopathology. No psychotropic compounds were found in body fluids. Hippocampi were removed, sectioned, and assessed histologically. Throughout the analysis, each major depressive disorder sample was paired with a sample from a psychiatrically healthy subject based on equivalent life spans and postmortem delays. The antiserum was identical to that used in previous studies that reported a downregulation of cortical 29/30-kd imidazoline receptor-binding proteins in depression. RESULTS A triad of imidazoline receptor-binding protein bands (40-50 kd) was detected in the human hippocampus. Subjects with major depressive disorder had significantly less intensity in each imidazoline receptor-binding proteins band compared with control subjects (p =. 01 for overall bands). CONCLUSIONS The present results can be aligned with previous reports of downregulation of I(2)-radioligand binding sites in both cortices and platelets of depressed patients.
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Affiliation(s)
- J E Piletz
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, Mississippi 39216, USA
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Reis D. Sleeping giant. CCRCs are suddenly the darling of lenders and investors. Contemp Longterm Care 2000; 23:34. [PMID: 11183688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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Levin D, Jacob Z, Reis D, Zinman C. [Pelvic triple osteotomy as a treatment for hip dysplasia]. Harefuah 2000; 138:385-90. [PMID: 10883141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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Levin D, Norman D, Zinman C, Rubinstein L, Sabo E, Misselevich I, Reis D, Boss JH. Treatment of experimental avascular necrosis of the femoral head with hyperbaric oxygen in rats: histological evaluation of the femoral heads during the early phase of the reparative process. Exp Mol Pathol 1999; 67:99-108. [PMID: 10527761 DOI: 10.1006/exmp.1999.2273] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The healing of vascular deprivation-induced necrosis of the femoral head of rats exposed to hyperbaric oxygen was compared with that in untreated rats. The amount of necrotic bone, extent of osteoneogenesis, degree of remodeling, and changes of the articular cartilage were histologically graded on a semiquantitative scale of 0 to 3+. On the 2nd, 7th, and 21st postoperative days, there were no differences between the two groups. Newly formed appositional and intramembranous bone was more abundant and remodeling was more advanced in the femoral heads of the hyperbaric oxygen-treated than untreated rats sacrificed on the 42nd postoperative day; also there was less necrotic debris in the femoral heads of the treated rats. There were no differences in the severity of the degenerative changes of the articular cartilage of the treated and untreated rats. Exposure of rats to hyperbaric oxygen does not preserve tissue viability after all arteries supplying the femoral head are severed. Yet, resulting in an increased oxygen tension of the tissues, it seems to provide the optimal settings for reparative processes. The results suggest that hyperoxygenation-mediated relief of ischemia enhances the fibroblastic, angioblastic, osteoblastic, and osteoclastic activities such that healing of the rats' necrotic femoral heads is expedited.
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Affiliation(s)
- D Levin
- Department of Orthopaedic Surgery, Rambam Medical Center, Haifa, Israel
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Zhu H, Halaris A, Madakasira S, Pazzaglia P, Goldman N, DeVane CL, Andrew M, Reis D, Piletz JE. Effect of bupropion on immunodensity of putative imidazoline receptors on platelets of depressed patients. J Psychiatr Res 1999; 33:323-33. [PMID: 10404470 DOI: 10.1016/s0022-3956(99)00009-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A substantial number of studies have demonstrated increased imidazoline receptors (I1 binding sites) on platelets of depressed patients and downregulation following antidepressant treatments. Herein, imidazoline receptor binding protein (IRBP) antiserum was used to quantify imidazoline receptors on platelets of depressed patients before and after treatment with the atypical aminoketone antidepressant, bupropion. Western blots revealed an increase in IRBP-immunodensity (p = 0.01, two-tailed) in a 33 kDa protein band in untreated depressed patients (n = 21) as compared with controls (n = 17). This band has been positively correlated with I1 binding sites on platelets. Following 6 weeks' treatment with bupropion, IRBP-immunodensity was downregulated in depressed patients (p = 0.03, paired t-test); predominantly in responders (p = 0.005). Patients non-responsive to bupropion (n = 5) were significantly different from responders (p = 0.05) by exhibiting no elevation in IRBP-immunodensity at pre-treatment and no downregulation of the 33 kDa band after treatment. IRBP-immunodensity was negatively correlated (r = -0.79, p = 0.01) with plasma concentrations of bupropion and its metabolites at week-4 of BUP treatment. Thus, a 33-kDa IRBP on platelet plasma membranes is elevated in depression and normalized in responders to bupropion.
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Affiliation(s)
- H Zhu
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson 39216-4505, USA
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Dellagi A, Reis D, Vian B, Expert D. Expression of the ferrioxamine receptor gene of Erwinia amylovora CFBP 1430 during pathogenesis. Mol Plant Microbe Interact 1999; 12:463-466. [PMID: 10226380 DOI: 10.1094/mpmi.1999.12.5.463] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [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
Mutants of Erwinia amylovora CFBP 1430 lacking a functional high-affinity iron transport system mediated by desferrioxamine are impaired in their ability to initiate fire blight symptoms (A. Dellagi, M.-N. Brisset, J.-P. Paulin, and D. Expert. Mol. Plant-Microbe Interact. 11:734-742, 1998). In this study, a chromosomal transcriptional lacZ fusion was used to analyze the expression in planta of the E. amylovora ferrioxamine receptor gene foxR. LacZ activity produced by the strain harboring the fusion was highly induced in iron-restricted conditions and in inoculated apple leaf tissues. Microscopic observation revealed differential expression of this gene in relation to the localization and density of bacterial cells within the diseased tissue. Thus, the ability of bacterial cells to express their iron transport system in accordance with environmental conditions is likely important for disease evolution.
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Affiliation(s)
- A Dellagi
- Laboratoire de Pathologie Végétale, INRA/INA P-G, Paris, France
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Abstract
Congenital malformations affecting multiple organ systems are at least three times more common in infants of mothers with IDDM than in infants born to nondiabetic mothers. Numerous studies have confirmed the teratogenic effect of hyperglycemia on the developing embryo, although no direct mechanism has been determined. In this study, we aimed to correlate the frequency of lacI mutations with degree of hyperglycemic exposure and severity of malformations in mouse embryos from in vitro cultures. Day 8 transgenic mouse embryos cultured in 30 or 50 mmol/l glucose for 48 h exhibited a higher incidence of morphological abnormalities, as well as an increase in lacI mutation frequency, compared with embryos cultured in 10 mmol/l glucose with no abnormalities and a lower frequency of lacI mutations. We also used a transgenic lacI rat system to evaluate the relationship between abnormal embryonic development and DNA mutation frequency in day 11 embryos of severely diabetic rats (serum glucose >20 mmol/l). Compared with control embryos, the embryos from diabetic rats displayed significantly more malformations, shorter crown-rump lengths, fewer somites, and more than six times greater genomic DNA mutation frequency. Genetic analysis of the mutated lacI gene from both in vitro cultured mouse embryos and in vivo developed rat embryos revealed that the majority of mutations were due to base substitutions (transitions and transversions), but that the rate of large DNA mutations tended to increase in embryos exposed to a diabetic environment. Our results support the interrelationship between increased rates of congenital malformations and DNA mutations in the offspring of diabetic pregnancy.
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Affiliation(s)
- A T Lee
- The Picower Institute for Medical Research, Manhasset, New York 11030, USA
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30
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Ha MA, Apperley DC, Evans BW, Huxham IM, Jardine WG, Viëtor RJ, Reis D, Vian B, Jarvis MC. Fine structure in cellulose microfibrils: NMR evidence from onion and quince. Plant J 1998; 16:183-90. [PMID: 22507135 DOI: 10.1046/j.1365-313x.1998.00291.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
It has been controversial for many years whether in the cellulose of higher plants, the microfibrils are aggregates of 'elementary fibrils', which have been suggested to be about 3.5 nm in diameter. Solid-state NMR spectroscopy was used to examine two celluloses whose fibril diameters had been established by electron microscopy: onion (8-10 nm, but containing 40% of xyloglucan as well as cellulose) and quince (2 nm cellulose core). Both of these forms of cellulose contained crystalline units of similar size, as estimated from the ratio of surface to interior chains, and the time required for proton magnetisation to diffuse from the surface to the interior. It is suggested that the onion microfibrils must therefore be constructed from a number of cellulose subunits 2 nm in diameter, smaller than the 'elementary fibrils' envisaged previously. The size of these subunits would permit a hexagonal arrangement resembling the cellulose synthase complex.
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Affiliation(s)
- M A Ha
- Chemistry Department, Glasgow University, Glasgow G12 8QQ, UK, EPSRC Solid-state NMR Service, Durham University, Durham DH1 3LE, UK, and INRA Laboratoire de Pathologie Végétale, 16, rue Claude Bernard, 75231 Paris, France
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31
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Lemos EM, Reis D, Adad SJ, Silva GC, Crema E, Correa-Oliveira R. Decreased CD4(+) circulating T lymphocytes in patients with gastrointestinal chagas disease. Clin Immunol Immunopathol 1998; 88:150-5. [PMID: 9714692 DOI: 10.1006/clin.1998.4549] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The gastrointestinal form of Chagas disease is characterized by lumenal enlargement and wall thickening of the esophagus and/or colon. Very little is known about the involvement of the immune system in the development of the gastrointestinal form of the disease. In this paper we describe our initial observations on the phenotypic analysis of peripheral blood mononuclear cells from patients with the gastrointestinal form of Chagas disease. A significant decrease in the absolute number of CD3(+) T cells as well as in CD19(+) B lymphocytes was observed. However, the most striking observation was an inversion of the CD4/CD8 ratio, contrasting with results from cardiac chagasic patients in whom the ratio is normal. A decrease of the percentage of CD4(+)CD28(+) cells and an increase in the expression of HLA-DR both on CD4(+) and on CD8(+) cells suggest that although these T cells express activation markers their function may be altered by the lack of CD28 expression.
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Affiliation(s)
- E M Lemos
- Centro de Pesquisas RenéRachou, FIOCRUZ, Belo Horizonte, MG, 30190-002, Brazil
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32
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Sauer H, Hescheler J, Reis D, Diedershagen H, Niedermeier W, Wartenberg M. DC electrical field-induced c-fos expression and growth stimulation in multicellular prostate cancer spheroids. Br J Cancer 1997; 75:1481-8. [PMID: 9166941 PMCID: PMC2223507 DOI: 10.1038/bjc.1997.253] [Citation(s) in RCA: 16] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The effects of electrical direct current (DC) field pulses on c-fos expression, growth kinetics and vitality patterns of multicellular tumour spheroids (MCSs) were studied. Monitoring the membrane potential of MCSs by di-8-ANNEPS staining and confocal microscopy during DC electrical field treatment revealed a hyperpolarization at the anode-facing side and a depolarization at the cathode-facing side. When a single 500 V m(-1) electrical field pulse with a duration of 60 s was applied to MCSs (150-350 microm in diameter) an enhancement of the growth kinetics within a period of 6 days post pulse was observed. Whereas the volume doubling time amounted to 4-5 days in control samples, it was reduced to 1-2 days in electropulsed MCSs. At day 6 post pulse the diameter of the necrotic core was significantly smaller than the control. The critical diameter for the first appearance of central necrosis amounted to 350 +/- 50 microm in the control and 450 +/- 50 microm in the electropulsed MCSs. Coincidentally, the proliferating rim was increased to 107 +/- 11 microm in electropulsed MCSs as compared with 60 +/- 6 microm in the control. The growth stimulation may be mediated by the proto-oncogene c-fos as its expression increased by a factor of 2.5 within 2 h post pulse. c-fos expression declined towards control values within 8 h post pulse.
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Affiliation(s)
- H Sauer
- Department of Neurophysiology, University of Cologne, Germany
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33
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Vago AR, Macedo AM, Oliveira RP, Andrade LO, Chiari E, Galvão LM, Reis D, Pereira ME, Simpson AJ, Tostes S, Pena SD. Kinetoplast DNA signatures of Trypanosoma cruzi strains obtained directly from infected tissues. Am J Pathol 1996; 149:2153-9. [PMID: 8952547 PMCID: PMC1865364] [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: 02/03/2023]
Abstract
We report here a polymerase chain reaction (PCR)-based DNA profiling technique that permits Trypanosoma cruzi strain characterization by direct study of infected tissues. This is based on application of a recently developed method of DNA fragment identification, called low-stringency single specific primer PCR (LSSP-PCR), to the study of the variable region of kinetoplast DNA (kDNA) minicircles from T. cruzi Thus, we can translate the intraspecific polymorphism in the nucleotide sequence of kDNA minicircles into a specific and highly reproducible kDNA signature. Comparison with the phenogram obtained by DNA fingerprinting analysis of a set of T. cruzi strains showed good qualitative correlation between the degree of divergence of the LSSP-PCR profiles and the genetic distance between the strains. kDNA signatures of heart tissue from acutely or chronically infected animals revealed perfect concordance with the patterns obtained from cultured parasites for the CL and Colombiana strains but not for the Y strain, which is known to be multiclonal. However, the match was perfect for studies with two clones of the Y strain. We take this as evidence that in some multiclonal strains there is heterogeneity among the clones in the degree of tropism for the heart tissue. Finally, we showed that it is possible to obtain a T. cruzi kDNA signature from the heart of a human patient with chronic Chagasic myocardiopathy. kDNA signatures obtained by LSSP-PCR of sequences amplified from infected tissues constitute a new tool to study the molecular epidemiology of Chagas' disease.
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Affiliation(s)
- A R Vago
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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34
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do Carmo I, Reis D, Varandas P, Bouça D, Santo DP, Neves A, André I, Sampaio D, Galvão-Teles A. Prevalence of Anorexia Nervosa: a Portuguese Population Study. Eur Eat Disorders Rev 1996. [DOI: 10.1002/(sici)1099-0968(199609)4:3<157::aid-erv126>3.0.co;2-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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35
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Abstract
The mouse adrenocortical Y-1 cell line expresses a high level of neuropeptide Y1 receptor (NPY-Y1). Moreover the receptor density can be up-regulated by dexamethasone or down-regulated by cAMP. To determine whether such regulation occurs at the level of gene expression, Y1 receptor mRNA was measured using a reverse transcriptase-competitive PCR method. Dexamethasone treatment increased Y1 mRNA in Y-1 cells, whereas the cAMP and ACTH decreased it. We also observed that the amount of Y1 receptor RNA was unaffected by phorbol 12-myristate 13-acetate, a protein kinase C stimulator, but was abolished in a cell line expressing apolipoprotein E (apoE). The results indicated that NPY-Y1 receptor mRNA in Y-1 cells is highly regulated by several intracellular messengers. The role of apoE in such regulation is of particular interest in view of evidence that the isoform of the molecule is highly correlated to the age of onset of Alzheimer's disease. The effect observed in the Y-1 cell line which expresses apoE may implicate a possible role of this protein in the process of neuronal death that occurred in the Alzheimer's disease.
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MESH Headings
- Adrenal Cortex/cytology
- Adrenal Cortex Neoplasms/genetics
- Adrenocorticotropic Hormone/pharmacology
- Animals
- Apolipoproteins E/biosynthesis
- Apolipoproteins E/pharmacology
- Base Sequence
- Cyclic AMP/pharmacology
- DNA Primers/chemistry
- DNA, Complementary/genetics
- Dexamethasone/pharmacology
- Gene Expression Regulation, Neoplastic/drug effects
- Gene Expression Regulation, Neoplastic/genetics
- Glucocorticoids/pharmacology
- Mice
- Polymerase Chain Reaction
- Protein Kinase C/drug effects
- Protein Kinase C/metabolism
- RNA, Messenger/biosynthesis
- RNA, Messenger/drug effects
- RNA, Messenger/genetics
- Rats
- Receptors, Neuropeptide Y/drug effects
- Receptors, Neuropeptide Y/genetics
- Templates, Genetic
- Tetradecanoylphorbol Acetate/pharmacology
- Tumor Cells, Cultured
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Affiliation(s)
- G Weng
- Department of Neurology and Neuroscience, Cornell University Medical College, New York, NY 10021, USA.
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36
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Weng G, Yee F, Michl P, Reis D, Wahlestedt C. Studies on neuropeptide Y receptors in a mouse adrenocortical cell line. Mol Pharmacol 1995; 48:9-14. [PMID: 7623780] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
The mouse adrenocortical Y-1 cell line has been found to express high affinity binding sites for neuropeptide Y (NPY). Pharmacological studies have shown that these NPY binding sites are of the Y1 type. Reverse transcription-polymerase chain reaction using primers specific for the rat Y1 receptor revealed that the NPY Y1 receptor mRNA is present in Y-1 cells. The Kd of the receptor for NPY was found to be 1.75 +/- 0.20 nM and the Bmax was 265 +/- 18 fmol/mg. The NPY Y1 receptors in this adrenocortical cell line were shown to be coupled to pertussis toxin-sensitive G proteins. Stimulation of Y1 receptors resulted in the inhibition of forskolin- and adrenocorticotropic hormone (ACTH)-stimulated cAMP synthesis. NPY had no effect on basal steroid release from the Y-1 cells. At an ACTH concentration of 0.1 microM, NPY did not affect ACTH-stimulated steroid release, although NPY did inhibit cAMP production under the same hormonal conditions. cAMP profoundly affected the density of the NPY receptors in Y-1 cells. Treatment of the cells with N6,2'-O-dibutyryl-cAMP or ACTH reduced the Y1 receptor density by > 50%. On the other hand the steroid dexamethasone increased the density of Y1 receptors by 35%. Although additional detailed studies are necessary, these results may have interesting implications for the functions of ACTH, steroids, and NPY in the pituitary-adrenocortical axis.
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Affiliation(s)
- G Weng
- Department of Neurology and Neuroscience, Cornell University Medical College, New York, New York 10021, USA
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37
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Stancek D, Stanceková M, Pimenta JK, Reis D. Interferon-neutralizing or enhancing activities in hybridoma cell fluids after in vitro immunization. Acta Virol 1992; 36:376-82. [PMID: 1282778] [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: 12/26/2022]
Abstract
Several hybridomas supernatants capable of interferon beta (IFN-beta) or "IFN epsilon" ("IFN-eps") neutralizing or enhancing activities were obtained after in vitro immunization of BALB/c and C57 mice spleen cells and their fusion with Sp2/0 plasmacytoma cells. Besides rather low anti-IFN-beta or "eps" antibody secretion several cloned hybridoma fluids contained a factor potentiating anti-viral activity of the both IFNs. It is speculated that this activity is due to production by some hybridomas of another lymphokine.
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Affiliation(s)
- D Stancek
- Institute of Preventive and Clinical Medicine, Commenius University, Bratislava, Czechoslovakia
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38
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Abstract
In numerous plant cell walls, the cellulose microfibrils are arranged in a helicoidal pattern which has been considered as an analog to a cholesteric order. Here, we report on the spontaneous helicoidal organization which occurs in acellular conditions from aqueous suspensions of cellulose. The cellulosic mucilage of mature seeds of quince (Cydonia oblonga L) was studied both in situ (pre-release mucilage) and after water extraction and in in vitro re-assembly (prolonged high speed ultracentrifugation, further progressive dehydration and embedding in LR White methacrylate or hydrosoluble melamine resin). The cellulosic component was characterized by the use of cellobiohydrolase (CBH1) bound to colloidal gold, and the glucuronic acid residues of the xylan matrix were characterized by the use of cationised gold. Inside the seeds, the pre-release mucilage is mostly helicoidal, with the occurrence of more or less ordered domains, which indicate a fluid organization relevant to an actual liquid crystal state. Cytochemical tests revealed the tight association between cellulose and glucuronoxylans, the latter constituting a charged coat around each microfibril. Following the hydration of the seed, a cellulosic suspension was extracted in which microfibrils were totally dispersed. The progressive dehydration of the suspension gave rise to concentrated viscous drops. Ultrastructural observations revealed the occurrence of multidomain organization, from non-ordered to cholesteric-like regions, revealing that the mucilage is at the same time crystalline and liquid. This constitutes the first demonstration that liquid crystal type assemblies can arise from crystalline and biological cellulose in aqueous suspension. It strengthens the hypothesis that a transient liquid crystal state must occur during the cellulose ordering. The possible morphogenetic role of the glucuronoxylans in the cholesteric organization of the cellulose is discussed.
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Affiliation(s)
- D Reis
- Laboratoire des Biomembranes et Surfaces Cellulaires Végétales, ENS, Paris, France
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39
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Reis D, Vian B, Darzens D, Roland JC. Sequential patterns of intramural digestion of galactoxyloglucan in tamarind seedlings. Planta 1987; 170:60-73. [PMID: 24232843 DOI: 10.1007/bf00392382] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/1986] [Accepted: 07/25/1986] [Indexed: 06/02/2023]
Abstract
The structure and breakdown of galactoxyloglucan (GXG)-rich cells was studied from cotyledons of Tamarindus indicus L. The depletion of GXG was followed at different levels: quantitative, histochemical and cytochemical. At the ultrastructural level two probes were used: one general for polysaccharides (periodic acid - thiocarbohydrazide - silver proteinate test), the other specific for the terminal galactosyl residues of GXG (β-galactosidase-gold complex). They were complemented by water-extraction of the GXG and analysis of the constituting monosaccharides by gas chromatography. Despite their collenchymateous aspect and the chemical similarity of the reserve GXG with the structural xyloglucan of growing walls, the thickened storage walls are not interpretable as being an hypertrophied primary wall. The tamarind cells produce an original type of wall construction in which GXGs are sequestered in a sort of homomolecular bulk. There is no evidence for intussusception of the molecules within a network of cellulose. The bulk of GXG is sandwiched between two thin layers: the outer is comparable to a regular primary wall, the inner behaves like a barrier during GXG withdrawal. Temporal and spatial patterns of GXG-mobilisation lead to the definition of a sequence of stages of cell activities (premobilising, mobilising, postmobilising). They are synchronized with the growth of the seedling axis, the duration and characteristics of the stages being subordinated to the location of the cells within the organ. Cell lysis is initiated in close relationship with intramural cavities. The development of digestion pockets results in a highly digested wall. The barrier prevents any engulfing of the cytoplasm in the wall clefts and creates an increasing free space. The attack front of digestion is always sharp. During all steps, the monosaccharide composition remains stable. At the end of GXG depletion, the storage wall is withdrawn and cells are rendered in a parenchyma-like state. The breakdown is not a complete wall collapse but an original controlled and limited wall-thinning. The data lead to the speculation that the hydrolytic activities result from a complementation between precursors relinquished by the cytoplasm and factors already present in the storage wall.
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Affiliation(s)
- D Reis
- Laboratoire des Biomembranes et Surfaces Cellulaires Végétales, Ecole Normale Supérieure, 24 rue Lhomond, F-75231, Paris Cedex O5, France
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40
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Biotenski A, Besser M, Israel O, Reis D. [Radioisotopes in the investigation of complications after total hip and knee replacement]. Harefuah 1985; 108:131-4. [PMID: 4007649] [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: 01/08/2023]
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41
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Saavedra JM, Fernandez-Pardal J, Ross C, Reis D. Dissociation between hypothalamic catecholamine levels and epinephrine-forming enzyme activity after midbrain hemitransections in the rat. Brain Res 1983; 276:367-71. [PMID: 6605179 DOI: 10.1016/0006-8993(83)90749-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
We found decreased catecholamine (norepinephrine and epinephrine) levels in selective hypothalamic nuclei of the rat after complete midbrain hemitransections. In contrast, the activity of the epinephrine-forming enzyme (phenylethanolamine-N-methyltransferase, PNMT, EC 2.1.1.28) was unchanged in the hypothalamus after the lesions. Our results demonstrate a dissociation between hypothalamic catecholamine levels and PNMT activity, and suggest that hypothalamic PNMT may not be localized in catecholaminergic axons originating in the brainstem.
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42
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Luine V, Park D, Joh T, Reis D, McEwen B. Immunochemical demonstration of increased choline acetyltransferase concentration in rat preoptic area after estradiol administration. Brain Res 1980; 191:273-7. [PMID: 7378758 DOI: 10.1016/0006-8993(80)90332-7] [Citation(s) in RCA: 95] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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43
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Reis D, Shifrin L, Schreyer I, Scharf J. [Bilateral total hip replacement in juvenile rheumatoid arthritis]. Harefuah 1978; 94:382-3. [PMID: 700453] [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: 12/24/2022]
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44
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Roland JC, Vian B, Reis D. Observations with cytochemistry and ultracryotomy on the fine structure of the expanding walls in actively elongating plant cells. J Cell Sci 1975; 19:239-59. [PMID: 1202041 DOI: 10.1242/jcs.19.2.239] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Ultracryotomy with negative staining and cytochemistry (periodic acid - thiocarbohydrazide - silver proteinate test for polysaccharides, in conjunction with mild extractions) were used to study the architecture of the cell wall and its modifications during expansion. Those techniques were applied to the study in situ of the walls of actively elongating parenchyma of mung bean (Phaseolus aureus), and pea (Pisum sativum) root and of collenchyma of celery (Apium graveolens) petioles. These complementary techniques provide information on the 3-dimensional disposition and fine structure of the subunits of the wall. In all the examples examined, the bulk of growing primary wall appears well-ordered and no progressive evolution from a transverse texture near the plasmalemma to a scattered texture near the middle lamella was observed. It seems unlikely that the development of the wall structure in relation to growth could be explained mechanically by a passive shift of the fibrillar elements in response to cellular stress. There is no evidence for an inert change in fibrillar orientation in the major part of the wall. If such occurs the process is limited to the outermost and senescent part of the wall. Thus, the texture observed does not agree with the classical multinet growth hypothesis but rather with the idea of an ordered structure of the primary wall. With the latter, the components should be able to respond in different ways to specific growth regulators and other environmental signals and thus exert a more positive control over the processes of oriented cell growth.
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45
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Joh TH, Geghman C, Reis D. Immunochemical demonstration of increased accumulation of tyrosine hydroxylase protein in sympathetic ganglia and adrenal medulla elicited by reserpine. Proc Natl Acad Sci U S A 1973; 70:2767-71. [PMID: 4147606 PMCID: PMC427105 DOI: 10.1073/pnas.70.10.2767] [Citation(s) in RCA: 141] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Chronic administration of reserpine to rats increases, in sympathetic ganglia and adrenal medulla, the activity of tyrosine hydroxylase (EC 1.14.3.x), the enzyme catalyzing the rate-limiting step in the biosynthesis of catecholamines. Immunochemical titration of the enzyme in both adrenal gland and innervated superior cervical ganglia demonstrates that enhanced enzyme activity is entirely attributable to accumulation of more specific enzyme protein and not activation of preexistent enzyme molecules.
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46
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Barlow JF, Reis D. Seventy year old female with recurrent episodes of gastrointestinal bleeding. S D J Med 1973; 26:9-13. [PMID: 4541241] [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: 01/11/2023]
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