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Ontaneda D, Sati P, Raza P, Kilbane M, Gombos E, Alvarez E, Azevedo C, Calabresi P, Cohen JA, Freeman L, Henry RG, Longbrake EE, Mitra N, Illenberger N, Schindler M, Moreno-Dominguez D, Ramos M, Mowry E, Oh J, Rodrigues P, Chahin S, Kaisey M, Waubant E, Cutter G, Shinohara R, Reich DS, Solomon A, Sicotte NL. Central vein sign: A diagnostic biomarker in multiple sclerosis (CAVS-MS) study protocol for a prospective multicenter trial. Neuroimage Clin 2021; 32:102834. [PMID: 34592690 PMCID: PMC8482479 DOI: 10.1016/j.nicl.2021.102834] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 09/16/2021] [Accepted: 09/19/2021] [Indexed: 01/06/2023]
Abstract
The specificity and implementation of current MRI-based diagnostic criteria for multiple sclerosis (MS) are imperfect. Approximately 1 in 5 of individuals diagnosed with MS are eventually determined not to have the disease, with overreliance on MRI findings a major cause of MS misdiagnosis. The central vein sign (CVS), a proposed MRI biomarker for MS lesions, has been extensively studied in numerous cross sectional studies and may increase diagnostic specificity for MS. CVS has desirable analytical, measurement, and scalability properties. "Central Vein Sign: A Diagnostic Biomarker in Multiple Sclerosis (CAVS-MS)" is an NIH-supported, 2-year, prospective, international, multicenter study conducted by the North American Imaging in MS Cooperative (NAIMS) to evaluate CVS as a diagnostic biomarker for immediate translation into clinical care. Study objectives include determining the concordance of CVS and McDonald Criteria to diagnose MS, the sensitivity of CVS to detect MS in those with typical presentations, and the specificity of CVS among those with atypical presentations. The study will recruit a total of 400 participants (200 with typical and 200 with atypical presentations) across 11 sites. T2*-weighted, high-isotropic-resolution, segmented echo-planar MRI will be acquired at baseline and 24 months on 3-tesla scanners, and FLAIR* images (combination of FLAIR and T2*) will be generated for evaluating CVS. Data will be processed on a cloud-based platform that contains clinical and CVS rating modules. Imaging quality control will be conducted by automated methods and neuroradiologist review. CVS will be determined by Select6* and Select3* lesion methods following published criteria at each site and by central readers, including neurologists and neuroradiologists. Automated CVS detection and algorithms for incorporation of CVS into McDonald Criteria will be tested. Diagnosis will be adjudicated by three neurologists who served on the 2017 International Panel on the Diagnosis of MS. The CAVS-MS study aims to definitively establish CVS as a diagnostic biomarker that can be applied broadly to individuals presenting for evaluation of the diagnosis of MS.
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Affiliation(s)
- D Ontaneda
- Cleveland Clinic Foundation, Cleveland, OH, United States.
| | - P Sati
- Cedars Sinai, Los Angeles, CA, United States; NINDS, NIH, Bethesda, MD, United States
| | - P Raza
- Cleveland Clinic Foundation, Cleveland, OH, United States
| | - M Kilbane
- Cleveland Clinic Foundation, Cleveland, OH, United States
| | - E Gombos
- Cedars Sinai, Los Angeles, CA, United States
| | - E Alvarez
- Neurology, U of Colorado, Denver, CO, United States
| | | | - P Calabresi
- Neurology, Johns Hopkins, Baltimore, MD, United States
| | - J A Cohen
- Cleveland Clinic Foundation, Cleveland, OH, United States
| | - L Freeman
- Dell Medical School, The University of Texas at Austin, Austin, TX, United States
| | - R G Henry
- University of California San Francisco, San Francisco, CA, United States
| | | | - N Mitra
- University of Pennsylvania, Philadelphia, PA, United States
| | - N Illenberger
- University of Pennsylvania, Philadelphia, PA, United States
| | - M Schindler
- University of Pennsylvania, Philadelphia, PA, United States
| | | | - M Ramos
- QMENTA Inc, Boston, MA, United States
| | - E Mowry
- Neurology, Johns Hopkins, Baltimore, MD, United States
| | - J Oh
- University of Toronto, Toronto, ON, Canada
| | | | - S Chahin
- Washington University, St. Louis, MO, United States
| | - M Kaisey
- Cedars Sinai, Los Angeles, CA, United States
| | - E Waubant
- University of California San Francisco, San Francisco, CA, United States
| | - G Cutter
- UAB School of Public Health, Birmingham, AL, United States
| | - R Shinohara
- University of Pennsylvania, Philadelphia, PA, United States
| | - D S Reich
- NINDS, NIH, Bethesda, MD, United States
| | - A Solomon
- The University of Vermont, Burlington, VT, United States
| | - N L Sicotte
- Cedars Sinai, Los Angeles, CA, United States
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Azevedo C, Ribeiro D, Lima A. Congenital nasal pyriform aperture stenosis: Diagnosis and surgical approach (with video). Eur Ann Otorhinolaryngol Head Neck Dis 2021; 138 Suppl 1:31-32. [PMID: 34167922 DOI: 10.1016/j.anorl.2020.10.015] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/12/2020] [Accepted: 10/27/2020] [Indexed: 11/29/2022]
Affiliation(s)
- C Azevedo
- Otolaryngology-Head and Neck Surgery department of Hospital de Braga, Braga, Portugal.
| | - D Ribeiro
- Otolaryngology-Head and Neck Surgery department of Hospital de Braga, Braga, Portugal
| | - A Lima
- Otolaryngology-Head and Neck Surgery department of Hospital de Braga, Braga, Portugal
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Fontes Lima A, Carvalho Moreira F, Azevedo C, Vilarinho S. Nasal septum mucocele in a patient with two other mucoceles of the paranasal sinuses: late complications of maxillofacial trauma. RHINOL 2020. [DOI: 10.4193/rhinol/20.055] [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: 11/08/2022] Open
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Clemente V, Allen-Gomes A, Tavares D, Azevedo C, Marques D, Serra J. How severe insomnia is (as measured by the insomnia severity index) depending on whether patients are using versus not using sleeping medication? Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.030] [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: 11/25/2022]
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Azevedo C, Teles T, Cunha R, Marques J, Semião M, Ferreira V, Sandra A, Agostinho E, Paulo M, Rui B. “Projeto Stop infeção” a way to prevent surgical site infection in colorectal surgery in Centro Hospitalar Cova da Beira – Portugal. Eur J Surg Oncol 2019. [DOI: 10.1016/j.ejso.2018.10.415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Bousquet J, Bourret R, Camuzat T, Augé P, Bringer J, Noguès M, Jonquet O, de la Coussaye JE, Ankri J, Cesari M, Guérin O, Vellas B, Blain H, Arnavielhe S, Avignon A, Combe B, Canovas G, Daien C, Dray G, Dupeyron A, Jeandel C, Laffont I, Laune D, Marion C, Pastor E, Pélissier JY, Galan B, Reynes J, Reuzeau JC, Bedbrook A, Granier S, Adnet PA, Amouyal M, Alomène B, Bernard PL, Berr C, Caimmi D, Claret PG, Costa DJ, Cristol JP, Fesler P, Hève D, Millot-Keurinck J, Morquin D, Ninot G, Picot MC, Raffort N, Roubille F, Sultan A, Touchon J, Attalin V, Azevedo C, Badin M, Bakhti K, Bardy B, Battesti MP, Bobia X, Boegner C, Boichot S, Bonnin HY, Bouly S, Boubakri C, Bourrain JL, Bourrel G, Bouix V, Bruguière V, Cade S, Camu W, Carre V, Cavalli G, Cayla G, Chiron R, Coignard P, Coroian F, Costa P, Cottalorda J, Coulet B, Coupet AL, Courrouy-Michel MC, Courtet P, Cros V, Cuisinier F, Danko M, Dauenhauer P, Dauzat M, David M, Davy JM, Delignières D, Demoly P, Desplan J, Dujols P, Dupeyron G, Engberink O, Enjalbert M, Fattal C, Fernandes J, Fouletier M, Fraisse P, Gabrion P, Gellerat-Rogier M, Gelis A, Genis C, Giraudeau N, Goucham AY, Gouzi F, Gressard F, Gris JC, Guillot B, Guiraud D, Handweiler V, Hayot M, Hérisson C, Heroum C, Hoa D, Jacquemin S, Jaber S, Jakovenko D, Jorgensen C, Kouyoudjian P, Lamoureux R, Landreau L, Lapierre M, Larrey D, Laurent C, Léglise MS, Lemaitre JM, Le Quellec A, Leclercq F, Lehmann S, Lognos B, Lussert CM, Makinson A, Mandrick K, Mares P, Martin-Gousset P, Matheron A, Mathieu G, Meissonnier M, Mercier G, Messner P, Meunier C, Mondain M, Morales R, Morel J, Mottet D, Nérin P, Nicolas P, Nouvel F, Paccard D, Pandraud G, Pasdelou MP, Pasquié JL, Patte K, Perrey S, Pers YM, Portejoie F, Pujol JLE, Quantin X, Quéré I, Ramdani S, Ribstein J, Rédini-Martinez I, Richard S, Ritchie K, Riso JP, Rivier F, Robine JM, Rolland C, Royère E, Sablot D, Savy JL, Schifano L, Senesse P, Sicard R, Stephan Y, Strubel D, Tallon G, Tanfin M, Tassery H, Tavares I, Torre K, Tribout V, Uziel A, Van de Perre P, Venail F, Vergne-Richard C, Vergotte G, Vian L, Vialla F, Viart F, Villain M, Viollet E, Ychou M, Mercier J. MACVIA-LR (Fighting Chronic Diseases for Active and Healthy Ageing in Languedoc-Roussillon): A Success Story of the European Innovation Partnership on Active and Healthy Ageing. J Frailty Aging 2017; 5:233-241. [PMID: 27883170 DOI: 10.14283/jfa.2016.105] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The Région Languedoc Roussillon is the umbrella organisation for an interconnected and integrated project on active and healthy ageing (AHA). It covers the 3 pillars of the European Innovation Partnership on Active and Healthy Ageing (EIP on AHA): (A) Prevention and health promotion, (B) Care and cure, (C) and (D) Active and independent living of elderly people. All sub-activities (poly-pharmacy, falls prevention initiative, prevention of frailty, chronic respiratory diseases, chronic diseases with multimorbidities, chronic infectious diseases, active and independent living and disability) have been included in MACVIA-LR which has a strong political commitment and involves all stakeholders (public, private, patients, policy makers) including CARSAT-LR and the Eurobiomed cluster. It is a Reference Site of the EIP on AHA. The framework of MACVIA-LR has the vision that the prevention and management of chronic diseases is essential for the promotion of AHA and for the reduction of handicap. The main objectives of MACVIA-LR are: (i) to develop innovative solutions for a network of Living labs in order to reduce avoidable hospitalisations and loss of autonomy while improving quality of life, (ii) to disseminate the innovation. The three years of MACVIA-LR activities are reported in this paper.
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Affiliation(s)
- J Bousquet
- Professor Jean Bousquet, CHRU, 371 Avenue du Doyen Gaston Giraud, 34295 Montpellier Cedex 5, France, Tel +33 611 42 88 47,
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Rangel LF, Rocha S, Casal G, Castro R, Severino R, Azevedo C, Cavaleiro F, Santos MJ. Life cycle inference and phylogeny of Ortholinea labracis n. sp. (Myxosporea: Ortholineidae), a parasite of the European seabass Dicentrarchus labrax (Teleostei: Moronidae), in a Portuguese fish farm. J Fish Dis 2017; 40:243-262. [PMID: 27307300 DOI: 10.1111/jfd.12508] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 04/22/2016] [Accepted: 04/25/2016] [Indexed: 06/06/2023]
Abstract
Ortholinea labracis n. sp. is described and its life cycle is inferred from a Southern Portuguese fish farm, with basis on microscopic and molecular procedures. This myxosporean parasite infects the urinary bladder of the European seabass Dicentrarchus labrax and the intestinal epithelium of a marine oligochaete of the genus Tectidrilus. Myxospores subspherical in valvular view and ellipsoidal in sutural view measuring 7.6 ± 0.3 (6.8-8.7) μm in length, 7.2 ± 0.2 (6.7-7.7) μm in width and 6.5 ± 0.4 (5.8-7.7) μm in thickness. Two polar capsules, 3.0 ± 0.2 (2.6-3.4) μm long and 2.4 ± 0.1 (2.0-2.9) μm wide, located at the same level, but with divergent orientation and opening to opposite sides of the suture line. Sequencing of the SSU rRNA gene revealed a similarity of 100% between the analysed myxospores and triactinomyxon actinospores. The phylogenetic setting of O. labracis n. sp. shows subgrouping in correlation with tissue tropism, but identifies this parasite as another exception to the main division of Myxosporea into the main freshwater and marine lineages.
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Affiliation(s)
- L F Rangel
- Laboratory of Animal Pathology, Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
| | - S Rocha
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
- Laboratory of Cell Biology, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - G Casal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
- Department of Sciences, University Institute of Health Sciences, CESPU, Gandra, Portugal
| | - R Castro
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
| | - R Severino
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
| | - C Azevedo
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
- Laboratory of Cell Biology, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
- Zoology Department, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - F Cavaleiro
- Laboratory of Animal Pathology, Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
| | - M J Santos
- Laboratory of Animal Pathology, Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal
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Azevedo C, Pacheco D, Soares L, Moitoso M, Maldonado J, Guix R, Simões J. Prevalence of bovine milk pathogens in Azorean pastures: mobile versus fixed milking machines. Vet Rec Open 2016; 3:e000181. [PMID: 27843558 PMCID: PMC5093392 DOI: 10.1136/vetreco-2016-000181] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 08/03/2016] [Accepted: 09/20/2016] [Indexed: 11/05/2022] Open
Abstract
The aims of the present study were (1) to evaluate the influence of using mobile (n=47) or fixed (n=45) milking machines in Azorean herds on the apparent prevalence of several milk pathogens in bulk tank milk (BTM) and (2) to determine whether separated subclinical mastitic cows can serve, in real time, as predictors of milk pathogen prevalence for the remaining animals at the herd level. The use of a mobile or fixed milking machine influenced (P≤0.05) the prevalence of Staphylococcus aureus (72.3 per cent; n=34 v 51.1 per cent; n=23, respectively) and Klebsiella species (46.8 per cent; n=22 v 26.7 per cent; n=12, respectively). S aureus (95 per cent CI OR 1.1 to 6.0) and Klebsiella species (95 per cent CI OR 1.0 to 5.8) were 2.5 times more likely to increase in the BTM of herds using mobile milking machines. The prevalence of coagulase-negative staphylococci (100 per cent; n=92), Escherichia coli (75.0 per cent), Corynebacterium bovis (57.6 per cent), Enterococcus species (55.4 per cent), Streptococcus dysgalactiae (51.1 per cent), Streptococcus uberis (41.3 per cent), Actinomyces pyogenes or Peptostreptococcus indolicus (41.3 per cent) and Streptococcus agalactiae (32.6 per cent) in BTM remained similar among the herds. κ coefficients were always <0.70, indicating intra-herd disagreement of the prevalence of milk pathogens between BTM and separated milking cows. Milking hygiene should be improved in pastures, focusing specifically on herds that use a mobile milking machine. The segregated cows at milking time are not good predictors of milk pathogens in BTM.
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Affiliation(s)
- C Azevedo
- HIPRA, Avenida La Selva , Girona , Spain
| | - D Pacheco
- University of Évora. Largo dos colegiais 2 , Évora , Portugal
| | - L Soares
- São Miguel Young Farmers Association , São Miguel, Azores , Portugal
| | - M Moitoso
- São Miguel Young Farmers Association , São Miguel, Azores , Portugal
| | | | - R Guix
- HIPRA, Avenida La Selva , Girona , Spain
| | - J Simões
- University of Trás-os-Montes e Alto Douro , Vila Real , Portugal
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Costa-Silva M, Azevedo C, Azevedo F, Lisboa C. Early syphilis treatment in HIV-infected patients: single dose vs. three doses of benzathine penicillin G. J Eur Acad Dermatol Venereol 2016; 30:1805-1809. [PMID: 27329618 DOI: 10.1111/jdv.13766] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 03/16/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND Current treatment guidelines for early stages of syphilis are the same regardless of HIV serostatus. There is still controversy about the best treatment for syphilis in HIV patients and the current recommendations are based on limited data. OBJECTIVE The primary goal of this study was to compare the serological response rates to a single dose vs. three weekly doses of benzathine penicillin G (BPG) in HIV-infected patients with early syphilis and to assess the adequacy of current recommendations. METHODS Clinical and laboratory data of HIV patients with early syphilis treated in Sexually Transmitted Disease Clinic between January 2000 and December 2014 were recorded. A good serological response was defined as a ≥4-fold decline in Venereal Disease Research Laboratory (VDRL) titre within 12 months after treatment. Serological failure was defined as a lack of at least fourfold decrease in VDRL titres within 12 months after treatment. RESULTS After applying inclusion and exclusion criteria, 60 patients were enrolled in the study. Seventeen (28.3%) patients were treated with a single dose of BPG, while in 43 (71.7%) patients, three weekly doses were used. Fifty eight (96.7%) had a good serological response at 12 months and seroconversion was confirmed in 29 (48.3%) patients. There was no statistically significant difference between the two treatment groups regarding serological response, seroconversion rate and the time needed to obtain a good serological response. Furthermore, treatment response was not affected by the number of CD4 cells. CONCLUSIONS The results of our study support the current international treatment guidelines, recommending early syphilis treatment with a single dose of BPG in HIV patients.
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Affiliation(s)
- M Costa-Silva
- Department of Dermatology and Venereology, Centro Hospitalar São João, EPE, Porto, Portugal.
| | - C Azevedo
- Department of Infectious Diseases, Centro Hospitalar São João, EPE, Porto, Portugal
| | - F Azevedo
- Department of Dermatology and Venereology, Centro Hospitalar São João, EPE, Porto, Portugal
| | - C Lisboa
- Department of Dermatology and Venereology, Centro Hospitalar São João, EPE, Porto, Portugal.,Department of Microbiology, Faculty of Medicine, University of Porto, Porto, Portugal
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Calisto J, Tátá F, Azevedo C, Pereira ML. CP-135 Monitoring and rationalisation of antibiotics prescribed in hospitals. Eur J Hosp Pharm 2016. [DOI: 10.1136/ejhpharm-2016-000875.135] [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] Open
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Bousquet J, Bourret R, Camuzat T, Augé P, Domy P, Bringer J, Best N, Jonquet O, de la Coussaye JE, Noguès M, Robine JM, Avignon A, Blain H, Combe B, Dray G, Dufour V, Fouletier M, Giraudeau N, Hève D, Jeandel C, Laffont I, Larrey D, Laune D, Laurent C, Mares P, Marion C, Pastor E, Pélissier JY, Radier-Pontal F, Reynes J, Royère E, Ychou M, Bedbrook A, Granier S, Abecassis F, Albert S, Adnet PA, Alomène B, Amouyal M, Arnavielhe S, Asteriou T, Attalin V, Aubas P, Azevedo C, Badin M, Bakhti, Baptista G, Bardy B, Battesti MP, Bénézet O, Bernard PL, Berr C, Berthe J, Bobia X, Bockaert J, Boegner C, Boichot S, Bonnin HY, Boulet P, Bouly S, Boubakri C, Bourdin A, Bourrain JL, Bourrel G, Bouix V, Breuker C, Bruguière V, Burille J, Cade S, Caimmi D, Calmels MV, Camu W, Canovas G, Carre V, Cavalli G, Cayla G, Chiron R, Claret PG, Coignard P, Coroian F, Costa DJ, Costa P, Cottalorda, Coulet B, Coupet AL, Courrouy-Michel MC, Courtet P, Cristol JP, Cros V, Cuisinier F, Daien C, Danko M, Dauenhauer P, Dauzat M, David M, Davy JM, Delignières D, Demoly P, Desplan J, Dhivert-Donnadieu H, Dujols P, Dupeyron A, Dupeyron G, Engberink O, Enjalbert M, Fattal C, Fernandes J, Fesler P, Fraisse P, Froger J, Gabrion P, Galano E, Gellerat-Rogier M, Gellis A, Goucham AY, Gouzi F, Gressard F, Gris JC, Guillot B, Guiraud D, Handweiler V, Hantkié H, Hayot M, Hérisson C, Heroum C, Hoa D, Jacquemin S, Jaber S, Jakovenko D, Jorgensen C, Journot L, Kaczorek M, Kouyoudjian P, Labauge P, Landreau L, Lapierre M, Leblond C, Léglise MS, Lemaitre JM, Le Moing V, Le Quellec A, Leclercq F, Lehmann S, Lognos B, Lussert JM, Makinson A, Mandrick K, Marmelat V, Martin-Gousset P, Matheron A, Mathieu G, Meissonnier M, Mercier G, Messner P, Meunier C, Mondain M, Morales R, Morel J, Morquin D, Mottet D, Nérin P, Nicolas P, Ninot G, Nouvel F, Ortiz JP, Paccard D, Pandraud G, Pasdelou MP, Pasquié JL, Patte K, Perrey S, Pers YM, Picot MC, Pin JP, Pinto N, Porte E, Portejoie F, Pujol JL, Quantin X, Quéré I, Raffort N, Ramdani S, Ribstein J, Rédini-Martinez I, Richard S, Ritchie K, Riso JP, Rivier F, Rolland C, Roubille F, Sablot D, Savy JL, Schifano L, Senesse P, Sicard R, Soua B, Stephan Y, Strubel D, Sultan A, Taddei-Ologeanu, Tallon G, Tanfin M, Tassery H, Tavares I, Torre K, Touchon J, Tribout V, Uziel A, Van de Perre P, Vasquez X, Verdier JM, Vergne-Richard C, Vergotte G, Vian L, Viarouge-Reunier C, Vialla F, Viart F, Villain M, Villiet M, Viollet E, Wojtusciszyn A, Aoustin M, Bourquin C, Mercier J. Introduction. Presse Med 2015; 44 Suppl 1:S1-5. [DOI: 10.1016/j.lpm.2015.07.014] [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: 10/22/2022] Open
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Laffont I, Jourdan C, Coroian F, Blain H, Carre V, Viollet E, Tavares I, Fattal C, Gelis A, Nouvel F, Bakhti K, Cros V, Patte K, Schifano L, Porte M, Galano E, Dray G, Fouletier M, Rivier F, Morales R, Labauge P, Camu W, Combe B, Morel J, Froger J, Coulet B, Cottalorda J, Kouyoumdjian P, Jonquet O, Landreau L, Bonnin HY, Hantkié O, Nicolas P, Enjalbert M, Leblond C, Soua B, Coignard P, Guiraud D, Azevedo C, Mottet D, Fraisse P, Pastor E, Mercier J, Bourret R, Bousquet J, Pélissier J, Bardy B, Herisson C, Dupeyron A. [Living Lab MACVIA. Disability]. Presse Med 2015; 44 Suppl 1:S60-9. [PMID: 26482491 DOI: 10.1016/j.lpm.2015.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Affiliation(s)
- I Laffont
- CHRU de Montpellier, département de médecine physique et de réadaptation, 34090 Montpellier, France; Movement to Health (M2H), Euromov, université de Montpellier, Montpellier, France.
| | - C Jourdan
- CHRU de Montpellier, département de médecine physique et de réadaptation, 34090 Montpellier, France
| | - F Coroian
- CHRU de Montpellier, département de médecine physique et de réadaptation, 34090 Montpellier, France; Movement to Health (M2H), Euromov, université de Montpellier, Montpellier, France
| | - H Blain
- Movement to Health (M2H), Euromov, université de Montpellier, Montpellier, France; CHRU de Montpellier, département de gériatrie, 34090 Montpellier, France
| | - V Carre
- CHRU de Montpellier, département de médecine physique et de réadaptation, 34090 Montpellier, France
| | - E Viollet
- CHU de Nîmes, hôpital Carémeau et du Grau du Roi, département de médecine physique et de réadaptation, 30029 Nîmes, France; CHU Carémeau, CEDMH, 30029 Nîmes, France
| | - I Tavares
- CHRU de Montpellier, département de médecine physique et de réadaptation, 34090 Montpellier, France
| | - C Fattal
- Association APPROCHE, CMRRF de Kerpape, BP 78, 56275 Ploemeur cedex, France
| | - A Gelis
- Centre Mutualiste Propara, 34000 Montpellier, France
| | - F Nouvel
- CHU Carémeau, CEDMH, 30029 Nîmes, France
| | - K Bakhti
- CHRU de Montpellier, département de médecine physique et de réadaptation, 34090 Montpellier, France; Movement to Health (M2H), Euromov, université de Montpellier, Montpellier, France
| | - V Cros
- CHRU de Montpellier, département de médecine physique et de réadaptation, 34090 Montpellier, France
| | - K Patte
- Institut Marin Saint-Pierre, 34250 Palavas les Flots, France
| | - L Schifano
- Institut Marin Saint-Pierre, 34250 Palavas les Flots, France
| | - M Porte
- CHU de Nîmes, hôpital Carémeau et du Grau du Roi, département de médecine physique et de réadaptation, 30029 Nîmes, France
| | - E Galano
- CHU de Nîmes, hôpital Carémeau et du Grau du Roi, département de médecine physique et de réadaptation, 30029 Nîmes, France
| | - G Dray
- École des Mines d'Alès, 30100 Alès, France
| | | | - F Rivier
- CHU de Montpellier, centre de référence Grand Sud des maladies neuromusculaires, département de neuropédiatrie, 34090 Montpellier, France
| | - R Morales
- CHRU de Montpellier, département de neurologie, 34090 Montpellier, France
| | - P Labauge
- CHRU de Montpellier, département de neurologie, 34090 Montpellier, France
| | - W Camu
- CHRU de Montpellier, département de neurologie, 34090 Montpellier, France
| | - B Combe
- CHRU de Montpellier, département de rhumatologie, 34090 Montpellier, France
| | - J Morel
- CHRU de Montpellier, département de rhumatologie, 34090 Montpellier, France
| | - J Froger
- Movement to Health (M2H), Euromov, université de Montpellier, Montpellier, France; CHU de Nîmes, hôpital Carémeau et du Grau du Roi, département de médecine physique et de réadaptation, 30029 Nîmes, France
| | - B Coulet
- CHRU de Montpellier, département de chirurgie orthopédique, 34090 Montpellier, France
| | - J Cottalorda
- CHRU de Montpellier, département de chirurgie orthopédique et plastique infantile, 34090 Montpellier, France
| | - P Kouyoumdjian
- CHU Carémeau, département de chirurgie orthopédique, 30029 Nîmes, France
| | - O Jonquet
- CHRU de Montpellier, département de réanimation, 34090 Montpellier, France
| | - L Landreau
- CHRU de Montpellier, département de réanimation, 34090 Montpellier, France
| | - H-Y Bonnin
- Movement to Health (M2H), Euromov, université de Montpellier, Montpellier, France; CHU de Nîmes, hôpital Carémeau et du Grau du Roi, département de médecine physique et de réadaptation, 30029 Nîmes, France
| | - O Hantkié
- Centre Bourgès, groupe Oc Santé, 34173 Castelneau-le-lez cedex, France
| | - P Nicolas
- Centre Bourgès, groupe Oc Santé, 34173 Castelneau-le-lez cedex, France
| | - M Enjalbert
- Centre Bouffard-Vercelli, 66290 Cerbère, France; Association APPROCHE, CMRRF de Kerpape, BP 78, 56275 Ploemeur cedex, France
| | - C Leblond
- Centre Bouffard-Vercelli, 66290 Cerbère, France
| | - B Soua
- Association ADAGES, Les Fontaines d'Ô, 34000 Montpellier, France
| | - P Coignard
- Association APPROCHE, CMRRF de Kerpape, BP 78, 56275 Ploemeur cedex, France
| | - D Guiraud
- Université de Montpellier, laboratoire d'informatique, de robotique et de microélectronique de Montpellier, 34090 Montpellier, France; Institut national de recherche en informatique et en automatique, LIRMM, université de Montpellier, 34090 Montpellier, France
| | - C Azevedo
- Université de Montpellier, laboratoire d'informatique, de robotique et de microélectronique de Montpellier, 34090 Montpellier, France; Institut national de recherche en informatique et en automatique, LIRMM, université de Montpellier, 34090 Montpellier, France
| | - D Mottet
- Movement to Health (M2H), Euromov, université de Montpellier, Montpellier, France
| | - P Fraisse
- Université de Montpellier, laboratoire d'informatique, de robotique et de microélectronique de Montpellier, 34090 Montpellier, France
| | - E Pastor
- CCAS de Lattes, 34970 Lattes, France
| | - J Mercier
- CHRU de Montpellier, U1046 Inserm, université Montpellier 1, 34090 Montpellier, France
| | - R Bourret
- CHRU de Montpellier, Direction générale, 34090 Montpellier, France
| | | | - J Pélissier
- Movement to Health (M2H), Euromov, université de Montpellier, Montpellier, France; CHU de Nîmes, hôpital Carémeau et du Grau du Roi, département de médecine physique et de réadaptation, 30029 Nîmes, France
| | - B Bardy
- Movement to Health (M2H), Euromov, université de Montpellier, Montpellier, France
| | - C Herisson
- CHRU de Montpellier, département de médecine physique et de réadaptation, 34090 Montpellier, France; Movement to Health (M2H), Euromov, université de Montpellier, Montpellier, France
| | - A Dupeyron
- Movement to Health (M2H), Euromov, université de Montpellier, Montpellier, France; CHU de Nîmes, hôpital Carémeau et du Grau du Roi, département de médecine physique et de réadaptation, 30029 Nîmes, France; CHU Carémeau, CEDMH, 30029 Nîmes, France
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Adolph C, Akhunzyanov R, Alexeev MG, Alexeev GD, Amoroso A, Andrieux V, Anosov V, Austregesilo A, Azevedo C, Badełek B, Balestra F, Barth J, Beck R, Bedfer Y, Bernhard J, Bicker K, Bielert ER, Birsa R, Bisplinghoff J, Bodlak M, Boer M, Bordalo P, Bradamante F, Braun C, Bressan A, Büchele M, Burtin E, Chang WC, Chiosso M, Choi I, Chung SU, Cicuttin A, Crespo ML, Curiel Q, Dalla Torre S, Dasgupta SS, Dasgupta S, Denisov OY, Dhara L, Donskov SV, Doshita N, Dünnweber W, Duic V, Dziewiecki M, Efremov A, Eversheim PD, Eyrich W, Faessler M, Ferrero A, Finger M, Finger M, Fischer H, Franco C, du Fresne von Hohenesche N, Friedrich JM, Frolov V, Gautheron F, Gavrichtchouk OP, Gerassimov S, Gnesi I, Gorzellik M, Grabmüller S, Grasso A, Grosse-Perdekamp M, Grube B, Grussenmeyer T, Guskov A, Haas F, Hahne D, von Harrach D, Hashimoto R, Heinsius FH, Herrmann F, Hinterberger F, Horikawa N, d'Hose N, Hsieh CY, Huber S, Ishimoto S, Ivanov A, Ivanshin Y, Iwata T, Jahn R, Jary V, Jörg P, Joosten R, Kabuß E, Ketzer B, Khaustov GV, Khokhlov YA, Kisselev Y, Klein F, Klimaszewski K, Koivuniemi JH, Kolosov VN, Kondo K, Königsmann K, Konorov I, Konstantinov VF, Kotzinian AM, Kouznetsov O, Krämer M, Kremser P, Krinner F, Kroumchtein ZV, Kuchinski N, Kunne F, Kurek K, Kurjata RP, Lednev AA, Lehmann A, Levillain M, Levorato S, Lichtenstadt J, Maggiora A, Magnon A, Makins N, Makke N, Mallot GK, Marchand C, Martin A, Marzec J, Matousek J, Matsuda H, Matsuda T, Meshcheryakov G, Meyer W, Michigami T, Mikhailov YV, Miyachi Y, Nagaytsev A, Nagel T, Nerling F, Neyret D, Nikolaenko VI, Novy J, Nowak WD, Nunes AS, Olshevsky AG, Orlov I, Ostrick M, Panzieri D, Parsamyan B, Paul S, Peng JC, Pereira F, Pesek M, Peshekhonov DV, Platchkov S, Pochodzalla J, Polyakov VA, Pretz J, Quaresma M, Quintans C, Ramos S, Regali C, Reicherz G, Riedl C, Rocco E, Rossiyskaya NS, Ryabchikov DI, Rychter A, Samoylenko VD, Sandacz A, Santos C, Sarkar S, Savin IA, Sbrizzai G, Schiavon P, Schmeing S, Schmidt K, Schmieden H, Schönning K, Schopferer S, Schlüter T, Selyunin A, Shevchenko OY, Silva L, Sinha L, Sirtl S, Slunecka M, Sozzi F, Srnka A, Stolarski M, Sulc M, Suzuki H, Szabelski A, Szameitat T, Sznajder P, Takekawa S, Ter Wolbeek J, Tessaro S, Tessarotto F, Thibaud F, Tskhay V, Uhl S, Veloso J, Virius M, Wallner S, Weisrock T, Wilfert M, Zaremba K, Zavertyaev M, Zemlyanichkina E, Ziembicki M, Zink A. Observation of a New Narrow Axial-Vector Meson a1(1420). Phys Rev Lett 2015; 115:082001. [PMID: 26340182 DOI: 10.1103/physrevlett.115.082001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Indexed: 06/05/2023]
Abstract
The COMPASS Collaboration at CERN has measured diffractive dissociation of 190 GeV/c pions into the π(-)π(-)π(+) final state using a stationary hydrogen target. A partial-wave analysis (PWA) was performed in bins of 3π mass and four-momentum transfer using the isobar model and the so far largest PWA model consisting of 88 waves. A narrow peak is observed in the f0(980)π channel with spin, parity and C-parity quantum numbers J(PC)=1(++). We present a resonance-model study of a subset of the spin-density matrix selecting 3π states with J(PC)=2(++) and 4(++) decaying into ρ(770)π and with J(PC)=1(++) decaying into f0(980)π. We identify a new a1 meson with mass (1414(-13)(+15)) MeV/c2 and width (153(-23)(+8)) MeV/c2. Within the final states investigated in our analysis, we observe the new a1(1420) decaying only into f0(980)π, suggesting its exotic nature.
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Affiliation(s)
- C Adolph
- Universität Erlangen-Nürnberg, Physikalisches Institut, 91054 Erlangen, Germany
| | - R Akhunzyanov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - M G Alexeev
- University of Turin, Department of Physics, 10125 Turin, Italy
| | - G D Alexeev
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - A Amoroso
- University of Turin, Department of Physics, 10125 Turin, Italy
- Torino Section of INFN, 10125 Turin, Italy
| | - V Andrieux
- CEA IRFU/SPhN Saclay, 91191 Gif-sur-Yvette, France
| | - V Anosov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - A Austregesilo
- CERN, 1211 Geneva 23, Switzerland
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | - C Azevedo
- University of Aveiro, Department of Physics, 3810-193 Aveiro, Portugal
| | - B Badełek
- University of Warsaw, Faculty of Physics, 02-093 Warsaw, Poland
| | - F Balestra
- University of Turin, Department of Physics, 10125 Turin, Italy
- Torino Section of INFN, 10125 Turin, Italy
| | - J Barth
- Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany
| | - R Beck
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany
| | - Y Bedfer
- CERN, 1211 Geneva 23, Switzerland
- CEA IRFU/SPhN Saclay, 91191 Gif-sur-Yvette, France
| | - J Bernhard
- CERN, 1211 Geneva 23, Switzerland
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany
| | - K Bicker
- CERN, 1211 Geneva 23, Switzerland
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | | | - R Birsa
- Trieste Section of INFN, 34127 Trieste, Italy
| | - J Bisplinghoff
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany
| | - M Bodlak
- Charles University in Prague, Faculty of Mathematics and Physics, 18000 Prague, Czech Republic
| | - M Boer
- CEA IRFU/SPhN Saclay, 91191 Gif-sur-Yvette, France
| | | | - F Bradamante
- University of Trieste, Department of Physics, 34127 Trieste, Italy
- Trieste Section of INFN, 34127 Trieste, Italy
| | - C Braun
- Universität Erlangen-Nürnberg, Physikalisches Institut, 91054 Erlangen, Germany
| | - A Bressan
- University of Trieste, Department of Physics, 34127 Trieste, Italy
- Trieste Section of INFN, 34127 Trieste, Italy
| | - M Büchele
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
| | - E Burtin
- CEA IRFU/SPhN Saclay, 91191 Gif-sur-Yvette, France
| | - W-C Chang
- Academia Sinica, Institute of Physics, Taipei 11529, Taiwan
| | - M Chiosso
- University of Turin, Department of Physics, 10125 Turin, Italy
- Torino Section of INFN, 10125 Turin, Italy
| | - I Choi
- University of Illinois at Urbana-Champaign, Department of Physics, Urbana, Illinois 61801-3080, USA
| | - S U Chung
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | - A Cicuttin
- Trieste Section of INFN, 34127 Trieste, Italy
- Abdus Salam ICTP, 34151 Trieste, Italy
| | - M L Crespo
- Trieste Section of INFN, 34127 Trieste, Italy
- Abdus Salam ICTP, 34151 Trieste, Italy
| | - Q Curiel
- CEA IRFU/SPhN Saclay, 91191 Gif-sur-Yvette, France
| | | | - S S Dasgupta
- Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India
| | - S Dasgupta
- Trieste Section of INFN, 34127 Trieste, Italy
| | | | - L Dhara
- Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India
| | - S V Donskov
- State Scientific Center Institute for High Energy Physics of National Research Center 'Kurchatov Institute', 142281 Protvino, Russia
| | - N Doshita
- Yamagata University, Yamagata 992-8510 Japan
| | - W Dünnweber
- University of Eastern Piedmont, 15100 Alessandria, Italy
- University of Aveiro, Department of Physics, 3810-193 Aveiro, Portugal
- Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany
- Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany
- Institute of Scientific Instruments, AS CR, 61264 Brno, Czech Republic
- Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- Universität Erlangen-Nürnberg, Physikalisches Institut, 91054 Erlangen, Germany
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
- CERN, 1211 Geneva 23, Switzerland
- Technical University in Liberec, 46117 Liberec, Czech Republic
- LIP, 1000-149 Lisbon, Portugal
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany
- University of Miyazaki, Miyazaki 889-2192, Japan
- Lebedev Physical Institute, 119991 Moscow, Russia
- Technische Universität München, Physik Department, 85748 Garching, Germany
- Nagoya University, 464 Nagoya, Japan
- Charles University in Prague, Faculty of Mathematics and Physics, 18000 Prague, Czech Republic
- Czech Technical University in Prague, 16636 Prague, Czech Republic
- State Scientific Center Institute for High Energy Physics of National Research Center 'Kurchatov Institute', 142281 Protvino, Russia
- CEA IRFU/SPhN Saclay, 91191 Gif-sur-Yvette, France
- Academia Sinica, Institute of Physics, Taipei 11529, Taiwan
- Tel Aviv University, School of Physics and Astronomy, 69978 Tel Aviv, Israel
- University of Trieste, Department of Physics, 34127 Trieste, Italy
- Trieste Section of INFN, 34127 Trieste, Italy
- Abdus Salam ICTP, 34151 Trieste, Italy
- University of Turin, Department of Physics, 10125 Turin, Italy
- Torino Section of INFN, 10125 Turin, Italy
- University of Illinois at Urbana-Champaign, Department of Physics, Urbana, Illinois 61801-3080, USA
- National Centre for Nuclear Research, 00-681 Warsaw, Poland
- University of Warsaw, Faculty of Physics, 02-093 Warsaw, Poland
- Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland
- Yamagata University, Yamagata 992-8510 Japan
| | - V Duic
- University of Trieste, Department of Physics, 34127 Trieste, Italy
| | - M Dziewiecki
- Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland
| | - A Efremov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - P D Eversheim
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany
| | - W Eyrich
- Universität Erlangen-Nürnberg, Physikalisches Institut, 91054 Erlangen, Germany
| | - M Faessler
- University of Eastern Piedmont, 15100 Alessandria, Italy
- University of Aveiro, Department of Physics, 3810-193 Aveiro, Portugal
- Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany
- Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany
- Institute of Scientific Instruments, AS CR, 61264 Brno, Czech Republic
- Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- Universität Erlangen-Nürnberg, Physikalisches Institut, 91054 Erlangen, Germany
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
- CERN, 1211 Geneva 23, Switzerland
- Technical University in Liberec, 46117 Liberec, Czech Republic
- LIP, 1000-149 Lisbon, Portugal
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany
- University of Miyazaki, Miyazaki 889-2192, Japan
- Lebedev Physical Institute, 119991 Moscow, Russia
- Technische Universität München, Physik Department, 85748 Garching, Germany
- Nagoya University, 464 Nagoya, Japan
- Charles University in Prague, Faculty of Mathematics and Physics, 18000 Prague, Czech Republic
- Czech Technical University in Prague, 16636 Prague, Czech Republic
- State Scientific Center Institute for High Energy Physics of National Research Center 'Kurchatov Institute', 142281 Protvino, Russia
- CEA IRFU/SPhN Saclay, 91191 Gif-sur-Yvette, France
- Academia Sinica, Institute of Physics, Taipei 11529, Taiwan
- Tel Aviv University, School of Physics and Astronomy, 69978 Tel Aviv, Israel
- University of Trieste, Department of Physics, 34127 Trieste, Italy
- Trieste Section of INFN, 34127 Trieste, Italy
- Abdus Salam ICTP, 34151 Trieste, Italy
- University of Turin, Department of Physics, 10125 Turin, Italy
- Torino Section of INFN, 10125 Turin, Italy
- University of Illinois at Urbana-Champaign, Department of Physics, Urbana, Illinois 61801-3080, USA
- National Centre for Nuclear Research, 00-681 Warsaw, Poland
- University of Warsaw, Faculty of Physics, 02-093 Warsaw, Poland
- Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland
- Yamagata University, Yamagata 992-8510 Japan
| | - A Ferrero
- CEA IRFU/SPhN Saclay, 91191 Gif-sur-Yvette, France
| | - M Finger
- Charles University in Prague, Faculty of Mathematics and Physics, 18000 Prague, Czech Republic
| | - M Finger
- Charles University in Prague, Faculty of Mathematics and Physics, 18000 Prague, Czech Republic
| | - H Fischer
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
| | | | | | - J M Friedrich
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | - V Frolov
- CERN, 1211 Geneva 23, Switzerland
| | - F Gautheron
- Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany
| | - O P Gavrichtchouk
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - S Gerassimov
- Lebedev Physical Institute, 119991 Moscow, Russia
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | - I Gnesi
- University of Turin, Department of Physics, 10125 Turin, Italy
- Torino Section of INFN, 10125 Turin, Italy
| | - M Gorzellik
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
| | - S Grabmüller
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | - A Grasso
- University of Turin, Department of Physics, 10125 Turin, Italy
- Torino Section of INFN, 10125 Turin, Italy
| | - M Grosse-Perdekamp
- University of Illinois at Urbana-Champaign, Department of Physics, Urbana, Illinois 61801-3080, USA
| | - B Grube
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | - T Grussenmeyer
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
| | - A Guskov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - F Haas
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | - D Hahne
- Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany
| | - D von Harrach
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany
| | - R Hashimoto
- Yamagata University, Yamagata 992-8510 Japan
| | - F H Heinsius
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
| | - F Herrmann
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
| | - F Hinterberger
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany
| | | | - N d'Hose
- CEA IRFU/SPhN Saclay, 91191 Gif-sur-Yvette, France
| | - C-Yu Hsieh
- Academia Sinica, Institute of Physics, Taipei 11529, Taiwan
| | - S Huber
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | - S Ishimoto
- Yamagata University, Yamagata 992-8510 Japan
| | - A Ivanov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - Yu Ivanshin
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - T Iwata
- Yamagata University, Yamagata 992-8510 Japan
| | - R Jahn
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany
| | - V Jary
- Czech Technical University in Prague, 16636 Prague, Czech Republic
| | - P Jörg
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
| | - R Joosten
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany
| | - E Kabuß
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany
| | - B Ketzer
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | - G V Khaustov
- State Scientific Center Institute for High Energy Physics of National Research Center 'Kurchatov Institute', 142281 Protvino, Russia
| | - Yu A Khokhlov
- State Scientific Center Institute for High Energy Physics of National Research Center 'Kurchatov Institute', 142281 Protvino, Russia
| | - Yu Kisselev
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - F Klein
- Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany
| | - K Klimaszewski
- National Centre for Nuclear Research, 00-681 Warsaw, Poland
| | - J H Koivuniemi
- Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany
| | - V N Kolosov
- State Scientific Center Institute for High Energy Physics of National Research Center 'Kurchatov Institute', 142281 Protvino, Russia
| | - K Kondo
- Yamagata University, Yamagata 992-8510 Japan
| | - K Königsmann
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
| | - I Konorov
- Lebedev Physical Institute, 119991 Moscow, Russia
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | - V F Konstantinov
- State Scientific Center Institute for High Energy Physics of National Research Center 'Kurchatov Institute', 142281 Protvino, Russia
| | - A M Kotzinian
- University of Turin, Department of Physics, 10125 Turin, Italy
- Torino Section of INFN, 10125 Turin, Italy
| | - O Kouznetsov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - M Krämer
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | - P Kremser
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
| | - F Krinner
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | - Z V Kroumchtein
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - N Kuchinski
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - F Kunne
- CEA IRFU/SPhN Saclay, 91191 Gif-sur-Yvette, France
| | - K Kurek
- National Centre for Nuclear Research, 00-681 Warsaw, Poland
| | - R P Kurjata
- Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland
| | - A A Lednev
- State Scientific Center Institute for High Energy Physics of National Research Center 'Kurchatov Institute', 142281 Protvino, Russia
| | - A Lehmann
- Universität Erlangen-Nürnberg, Physikalisches Institut, 91054 Erlangen, Germany
| | - M Levillain
- CEA IRFU/SPhN Saclay, 91191 Gif-sur-Yvette, France
| | - S Levorato
- Trieste Section of INFN, 34127 Trieste, Italy
| | - J Lichtenstadt
- Tel Aviv University, School of Physics and Astronomy, 69978 Tel Aviv, Israel
| | - A Maggiora
- Torino Section of INFN, 10125 Turin, Italy
| | - A Magnon
- CEA IRFU/SPhN Saclay, 91191 Gif-sur-Yvette, France
| | - N Makins
- University of Illinois at Urbana-Champaign, Department of Physics, Urbana, Illinois 61801-3080, USA
| | - N Makke
- University of Trieste, Department of Physics, 34127 Trieste, Italy
- Trieste Section of INFN, 34127 Trieste, Italy
| | | | - C Marchand
- CEA IRFU/SPhN Saclay, 91191 Gif-sur-Yvette, France
| | - A Martin
- University of Trieste, Department of Physics, 34127 Trieste, Italy
- Trieste Section of INFN, 34127 Trieste, Italy
| | - J Marzec
- Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland
| | - J Matousek
- Charles University in Prague, Faculty of Mathematics and Physics, 18000 Prague, Czech Republic
| | - H Matsuda
- Yamagata University, Yamagata 992-8510 Japan
| | - T Matsuda
- University of Miyazaki, Miyazaki 889-2192, Japan
| | - G Meshcheryakov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - W Meyer
- Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany
| | - T Michigami
- Yamagata University, Yamagata 992-8510 Japan
| | - Yu V Mikhailov
- State Scientific Center Institute for High Energy Physics of National Research Center 'Kurchatov Institute', 142281 Protvino, Russia
| | - Y Miyachi
- Yamagata University, Yamagata 992-8510 Japan
| | - A Nagaytsev
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - T Nagel
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | - F Nerling
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany
| | - D Neyret
- CEA IRFU/SPhN Saclay, 91191 Gif-sur-Yvette, France
| | - V I Nikolaenko
- State Scientific Center Institute for High Energy Physics of National Research Center 'Kurchatov Institute', 142281 Protvino, Russia
| | - J Novy
- CERN, 1211 Geneva 23, Switzerland
- Czech Technical University in Prague, 16636 Prague, Czech Republic
| | - W-D Nowak
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
| | | | - A G Olshevsky
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - I Orlov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - M Ostrick
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany
| | - D Panzieri
- University of Eastern Piedmont, 15100 Alessandria, Italy
- Torino Section of INFN, 10125 Turin, Italy
| | - B Parsamyan
- University of Turin, Department of Physics, 10125 Turin, Italy
- Torino Section of INFN, 10125 Turin, Italy
| | - S Paul
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | - J-C Peng
- University of Illinois at Urbana-Champaign, Department of Physics, Urbana, Illinois 61801-3080, USA
| | - F Pereira
- University of Aveiro, Department of Physics, 3810-193 Aveiro, Portugal
| | - M Pesek
- Czech Technical University in Prague, 16636 Prague, Czech Republic
| | - D V Peshekhonov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - S Platchkov
- CEA IRFU/SPhN Saclay, 91191 Gif-sur-Yvette, France
| | - J Pochodzalla
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany
| | - V A Polyakov
- State Scientific Center Institute for High Energy Physics of National Research Center 'Kurchatov Institute', 142281 Protvino, Russia
| | - J Pretz
- Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany
| | | | | | - S Ramos
- LIP, 1000-149 Lisbon, Portugal
| | - C Regali
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
| | - G Reicherz
- Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany
| | - C Riedl
- University of Illinois at Urbana-Champaign, Department of Physics, Urbana, Illinois 61801-3080, USA
| | - E Rocco
- CERN, 1211 Geneva 23, Switzerland
| | - N S Rossiyskaya
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - D I Ryabchikov
- State Scientific Center Institute for High Energy Physics of National Research Center 'Kurchatov Institute', 142281 Protvino, Russia
| | - A Rychter
- Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland
| | - V D Samoylenko
- State Scientific Center Institute for High Energy Physics of National Research Center 'Kurchatov Institute', 142281 Protvino, Russia
| | - A Sandacz
- National Centre for Nuclear Research, 00-681 Warsaw, Poland
| | - C Santos
- Trieste Section of INFN, 34127 Trieste, Italy
| | - S Sarkar
- Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India
| | - I A Savin
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - G Sbrizzai
- University of Trieste, Department of Physics, 34127 Trieste, Italy
- Trieste Section of INFN, 34127 Trieste, Italy
| | - P Schiavon
- University of Trieste, Department of Physics, 34127 Trieste, Italy
- Trieste Section of INFN, 34127 Trieste, Italy
| | - S Schmeing
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | - K Schmidt
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
| | - H Schmieden
- Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany
| | | | - S Schopferer
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
| | - T Schlüter
- University of Eastern Piedmont, 15100 Alessandria, Italy
- University of Aveiro, Department of Physics, 3810-193 Aveiro, Portugal
- Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany
- Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany
- Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany
- Institute of Scientific Instruments, AS CR, 61264 Brno, Czech Republic
- Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- Universität Erlangen-Nürnberg, Physikalisches Institut, 91054 Erlangen, Germany
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
- CERN, 1211 Geneva 23, Switzerland
- Technical University in Liberec, 46117 Liberec, Czech Republic
- LIP, 1000-149 Lisbon, Portugal
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany
- University of Miyazaki, Miyazaki 889-2192, Japan
- Lebedev Physical Institute, 119991 Moscow, Russia
- Technische Universität München, Physik Department, 85748 Garching, Germany
- Nagoya University, 464 Nagoya, Japan
- Charles University in Prague, Faculty of Mathematics and Physics, 18000 Prague, Czech Republic
- Czech Technical University in Prague, 16636 Prague, Czech Republic
- State Scientific Center Institute for High Energy Physics of National Research Center 'Kurchatov Institute', 142281 Protvino, Russia
- CEA IRFU/SPhN Saclay, 91191 Gif-sur-Yvette, France
- Academia Sinica, Institute of Physics, Taipei 11529, Taiwan
- Tel Aviv University, School of Physics and Astronomy, 69978 Tel Aviv, Israel
- University of Trieste, Department of Physics, 34127 Trieste, Italy
- Trieste Section of INFN, 34127 Trieste, Italy
- Abdus Salam ICTP, 34151 Trieste, Italy
- University of Turin, Department of Physics, 10125 Turin, Italy
- Torino Section of INFN, 10125 Turin, Italy
- University of Illinois at Urbana-Champaign, Department of Physics, Urbana, Illinois 61801-3080, USA
- National Centre for Nuclear Research, 00-681 Warsaw, Poland
- University of Warsaw, Faculty of Physics, 02-093 Warsaw, Poland
- Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland
- Yamagata University, Yamagata 992-8510 Japan
| | - A Selyunin
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - O Yu Shevchenko
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - L Silva
- LIP, 1000-149 Lisbon, Portugal
| | - L Sinha
- Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India
| | - S Sirtl
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
| | - M Slunecka
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - F Sozzi
- Trieste Section of INFN, 34127 Trieste, Italy
| | - A Srnka
- Institute of Scientific Instruments, AS CR, 61264 Brno, Czech Republic
| | | | - M Sulc
- Technical University in Liberec, 46117 Liberec, Czech Republic
| | - H Suzuki
- Yamagata University, Yamagata 992-8510 Japan
| | - A Szabelski
- National Centre for Nuclear Research, 00-681 Warsaw, Poland
| | - T Szameitat
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
| | - P Sznajder
- National Centre for Nuclear Research, 00-681 Warsaw, Poland
| | - S Takekawa
- University of Turin, Department of Physics, 10125 Turin, Italy
- Torino Section of INFN, 10125 Turin, Italy
| | - J Ter Wolbeek
- Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany
| | - S Tessaro
- Trieste Section of INFN, 34127 Trieste, Italy
| | | | - F Thibaud
- CEA IRFU/SPhN Saclay, 91191 Gif-sur-Yvette, France
| | - V Tskhay
- Lebedev Physical Institute, 119991 Moscow, Russia
| | - S Uhl
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | - J Veloso
- University of Aveiro, Department of Physics, 3810-193 Aveiro, Portugal
| | - M Virius
- Czech Technical University in Prague, 16636 Prague, Czech Republic
| | - S Wallner
- Technische Universität München, Physik Department, 85748 Garching, Germany
| | - T Weisrock
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany
| | - M Wilfert
- Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany
| | - K Zaremba
- Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland
| | - M Zavertyaev
- Lebedev Physical Institute, 119991 Moscow, Russia
| | - E Zemlyanichkina
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
| | - M Ziembicki
- Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland
| | - A Zink
- Universität Erlangen-Nürnberg, Physikalisches Institut, 91054 Erlangen, Germany
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14
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Rocha S, Casal G, Garcia P, Matos E, Al-Quraishy S, Azevedo C. Ultrastructure and phylogeny of the parasite Henneguya carolina sp. nov. (Myxozoa), from the marine fish Trachinotus carolinus in Brazil. Dis Aquat Organ 2014; 112:139-148. [PMID: 25449325 DOI: 10.3354/dao02794] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Microscopic and molecular procedures are used to describe a new myxosporean species, Henneguya carolina sp. nov., found infecting the intestine of the marine teleost fish Trachinotus carolinus on the southern Atlantic coast of Brazil. Spherical to ellipsoid cysts, measuring up to ~750 µm, display synchronous development. Mature myxospores are ellipsoidal with a bifurcated caudal process. Myxospore body length, width, and thickness are 12.7 ± 0.8 (12.0-13.4) µm, 8.8 ± 0.6 (7.5-9.6) µm, and 5.8 ± 0.4 (5.0-6.4) µm, respectively; 2 equal caudal processes are 16.8 ± 1.1 (15.9-18.0) µm long, and the total myxospore length is 29.4 ± 0.8 (28.4-30.4) µm. Two pyriform polar capsules measure 5.0 ± 0.5 (4.6-5.6) × 2.4 ± 0.4 (1.9-2.9) µm, and each contains a polar filament forming 3 to 4 coils. Sporoplasm is binucleated and presents a spherical vacuole surrounded by numerous globular sporoplasmosomes. Molecular analysis of the small subunit rRNA gene by maximum parsimony, neighbor joining, and maximum likelihood reveals the parasite clustering together with other myxobolids that are histozoic in marine fish of the order Perciformes, thereby strengthening the contention that the host phylogenetic relationships and aquatic environment are the strongest evolutionary signal for myxosporeans of the family Myxobolidae.
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Affiliation(s)
- S Rocha
- Laboratory of Animal Pathology, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, 4050-123 Porto, Portugal
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15
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Azevedo C, Maia I, Canada N, Simões J. Comparison of fertility, regular returns-to-estrus, and calving interval between Ovsynch and CO-synch + CIDR protocols in dairy cows. Theriogenology 2014; 82:910-4. [PMID: 25110064 DOI: 10.1016/j.theriogenology.2014.07.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 05/29/2014] [Accepted: 07/03/2014] [Indexed: 10/25/2022]
Abstract
The main aims of the present study were to compare the pregnancy rate (PR), regular returns-to-estrus, and calving interval of a CO-Synch + controlled internal drug release (CIDR) device, commonly used to synchronize ovulations in beef cows, with the classical Ovsynch protocol in high-producing dairy cows. Holstein-Friesian cows (n = 128) from six commercial dairy herds, ≥40 days postpartum and not previously inseminated, were randomly assigned to one of two treatments. Cows submitted to Ovsynch protocol (group OS as control group; n = 66) received 10 μg of a GnRH analogue 7 days before and 48 hours after 25 mg PGF2α, followed by artificial insemination (AI) 16 hours after the second GnRH administration. Cows submitted to CO-Synch + CIDR (1.38 g of progesterone) inserted for 7 days beginning at the first GnRH administration (group CoS + CD; n = 62) had the second administration of GnRH concurrent with AI, 64 hours after CIDR removal/PGF2α administration. Nonpregnant cows with return-to-estrus between 18 and 24 days after first AI were reinseminated (second AI). Logistic regressions were used to analyze PR and returns-to-estrus. No effect of group or herd was observed in PR at first timed AI. However, the sum of cows pregnant at first AI and nonpregnant cows with regular returns-to-estrus and the total PR (first + second AI) were influenced by group treatment. Overall, cows of group CoS + CD (total PR = 56.5%) were 2.1 times more likely to became pregnant after AI and until first regular returns-to-estrus than cows of group OS. The calving interval was lower in group CoS + CD (425.9 ± 78.8 days; ±SD) than in group OS (475.3 ± 83.7 days). The CO-Synch + CIDR protocol was reliable to use in dairy herds and provided reproductive advantages when compared with Ovsynch protocol.
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Affiliation(s)
- C Azevedo
- Medicina de Produção Leiteira Veterinária Lda. (MPLVET), Tocha, Portugal
| | - I Maia
- Medicina de Produção Leiteira Veterinária Lda. (MPLVET), Tocha, Portugal
| | - N Canada
- Department of Veterinary Clinics, Abel Salazar Institute of Biomedical Sciences, Rua Jorge Viterbo Ferreira, Porto, Portugal.
| | - J Simões
- Department of Veterinary Sciences, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
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16
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Castellanos-Martínez S, Prado-Alvarez M, Lobo-da-Cunha A, Azevedo C, Gestal C. Morphologic, cytometric and functional characterization of the common octopus (Octopus vulgaris) hemocytes. Dev Comp Immunol 2014; 44:50-58. [PMID: 24296436 DOI: 10.1016/j.dci.2013.11.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 11/24/2013] [Accepted: 11/25/2013] [Indexed: 06/02/2023]
Abstract
The hemocytes of Octopus vulgaris were morphologically and functionally characterized. Light and electron microscopy (TEM and SEM), and flow cytometry analyses revealed the existence of two hemocyte populations. Large granulocytes showed U-shaped nucleus, a mean of 11.6 μm±1.2 in diameter with basophilic granules, polysaccharide and lysosomic deposits in the cytoplasm. Small granulocytes measured a mean of 8.1 μm±0.7 in diameter, and have a round nucleus occupying almost the entire cell and few or not granules in the cytoplasm. Flow cytometry analysis showed that large granulocytes are the principal cells that develop phagocytosis of latex beads (rising up to 56%) and ROS after zymosan stimulation. Zymosan induced the highest production of both ROS and NO. This study is the first tread towards understanding the O. vulgaris immune system by applying new tools to provide a most comprehensive morpho-functional study of their hemocytes.
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Affiliation(s)
- S Castellanos-Martínez
- Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas, Eduardo Cabello, 6, 36208 Vigo, Spain
| | - M Prado-Alvarez
- Interdisciplinary Center of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; Institute of Biomedical Sciences Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - A Lobo-da-Cunha
- Interdisciplinary Center of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; Institute of Biomedical Sciences Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - C Azevedo
- Interdisciplinary Center of Marine and Environmental Research, University of Porto, Rua dos Bragas 289, 4050-123 Porto, Portugal; Institute of Biomedical Sciences Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - C Gestal
- Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas, Eduardo Cabello, 6, 36208 Vigo, Spain.
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17
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McKinnon M, Azevedo C, Bush SH, Lawlor P, Pereira J. Practice and documentation of palliative sedation: a quality improvement initiative. ACTA ACUST UNITED AC 2014; 21:100-3. [PMID: 24764700 DOI: 10.3747/co.21.1773] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [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]
Abstract
BACKGROUND Palliative sedation (ps), the continuous use of sedating doses of medication to intentionally reduce consciousness and relieve refractory symptoms at end of life, is ethically acceptable if administered according to standards of best practice. Procedural guidelines outlining the appropriate use of ps and the need for rigorous documentation have been developed. As a quality improvement strategy, we audited the practice and documentation of ps on our palliative care unit (pcu). METHODS A pharmacy database search of admissions in 2008 identified, for a subsequent chart review, patients who had received either a continuous infusion of midazolam (≥10 mg/24 h), regular parenteral dosing of methotrimeprazine (≥75 mg daily), or regular phenobarbital. Documentation of the decision-making process, consent, and medication use was collected using a data extraction form based on current international ps standards. RESULTS Interpretation and comparison of data were difficult because of an apparent lack of a consistent operational definition of ps. Patient records had no specific documentation in relation to ps initiation, to clearly identified refractory symptoms, and to informed consent in 60 (64.5%), 43 (46.2%), and 38 (40.9%) charts respectively. Variation in the medications used was marked: 54 patients (58%) were started on a single agent and 39 (42%), on multiple agents. The 40 patients (43%) started on midazolam alone received a mean daily dose of 21.4 mg (standard deviation: 24.6 mg). CONCLUSIONS The lack of documentation and standardized practice of ps on our pcu has resulted in a quality improvement program to address those gaps. They also highlight the importance of conducting research and developing clinical guidelines in this area.
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Affiliation(s)
- M McKinnon
- Division of Palliative Care, Department of Medicine, University of Ottawa, Ottawa, ON. ; Bruyère Continuing Care, Ottawa, ON
| | - C Azevedo
- Department of Medical Oncology, Portuguese Oncology Institute of Coimbra, Coimbra, Portugal
| | - S H Bush
- Division of Palliative Care, Department of Medicine, University of Ottawa, Ottawa, ON. ; Bruyère Continuing Care, Ottawa, ON. ; Bruyère Research Institute, Ottawa, ON
| | - P Lawlor
- Division of Palliative Care, Department of Medicine, University of Ottawa, Ottawa, ON. ; Bruyère Continuing Care, Ottawa, ON. ; Bruyère Research Institute, Ottawa, ON
| | - J Pereira
- Division of Palliative Care, Department of Medicine, University of Ottawa, Ottawa, ON. ; Bruyère Continuing Care, Ottawa, ON. ; Bruyère Research Institute, Ottawa, ON
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18
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Azevedo C, Matos P, Rocha S, Matos E, Oliveira E, Al-Quraishy S, Casal G. Ultrastructure of novel thrombocytes in the dog snapper Lutjanus jocu. J Fish Biol 2014; 84:865-871. [PMID: 24602039 DOI: 10.1111/jfb.12261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Accepted: 09/20/2013] [Indexed: 06/03/2023]
Abstract
Myxosporean cysts containing spores of Henneguya sp. were observed in the gills of the dog snapper Lutjanus jocu. Adjacent to the cysts were capillaries, allowing observation of peripheral blood cells. Numerous white blood cells displaying uncommon cytoplasmic projections were observed amongst the erythrocytes. Their morphology allowed them to be identified as thrombocytes (TCs). Each TC displayed 18-26 cytoplasmic projections, most of which were in close proximity to erythrocytes. At their apical end, each cytoplasmic projection presented an ellipsoidal vacuole (c. 0·6 µm × 0·3 µm) from which a secretory tubule, 0·3-0·4 µm long and c. 120 nm in total diameter, extended towards the periphery of the TC plasmalemma and fused with the cellular membrane. From this opening, contents of vacuoles were apparently released into the lumen of the capillaries. Other vacuoles with similar features, and containing an electron-lucent matrix, were observed in the cytoplasm of the TC. This is the first description of fish TC with these ultrastructural features and organization, which suggest that they perform a secretory function.
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Affiliation(s)
- C Azevedo
- Laboratory of Cell Biology, Institute of Biomedical Sciences (ICBAS/UP), University of Porto, 4050-313, Porto, Portugal; Laboratory of Pathology, Interdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR/UP), University of Porto, 4050-123, Porto, Portugal; Zoology Department, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia
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19
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Azevedo C, Canada N, Simões J. O protocolo hormonal ovsynch e suas modificações em vacas leiteiras de alta produção: uma revisão. ARCH ZOOTEC 2014. [DOI: 10.21071/az.v63i241.597] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
A eficiência reprodutiva em vacas leiteiras de alta produção representa atualmente um dos maiores desafios para a viabilidade das explorações. O presente trabalho teve como objetivo reportar as modificações dos protocolos de indução ovulatória baseados na administração programada de prostaglandina F2α (PGF 2α) entre duas aplicações de hormona libertadora de gonadotrofina (GnRH ), seguida da inseminação artificial em tempo fixo (IATF ). Tendo por base o protocolo hormonal Ovsynch, novos protocolos foram desenvolvidos tentando aumentar a sua eficiência reprodutiva, seguindo diferentes estratégias: (1) manipulação dos padrões de desenvolvimento folicular antes da GnRH -1, (2) otimização do ambiente hormonal peri-ovulatório, (3) otimização do intervalo de tempo entre a PGF 2α e a GnRH -2 e o momento da IA após a GnRH -2, (4) suplementação com progesterona antes da IATF , (5) redução do período de dominância folicular e aumento do proestro, e (6) controlo do crescimento folicular após a IATF . As modificações do protocolo Ovsynch permitiram a manutenção da taxa fertilidade à 1ª inseminação, até aproximadamente 40 %, quando comparada com inseminações realizadas após deteção do cio natural, com a consequente melhoria da gestão reprodutiva das manadas. As pesquisas futuras deste tipo de protocolos de indução ovulatória deverão dar enfase a aspetos nutricionais e de produção leiteira das vacas assim como ao stresse térmico em países de zonas mediterrânicas, subtropicais e tropicais.
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Silva F, Rocha G, Resende M, Guimarães S, Peternelli L, Duarte D, Azevedo C. Seleção genômica ampla para curvas de crescimento. ARQ BRAS MED VET ZOO 2013. [DOI: 10.1590/s0102-09352013000500033] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Foi proposta uma metodologia para avaliação genética de curvas de crescimento considerando-se informações de marcadores SNPs (Single Nucleotide Polymorphisms). Em um primeiro passo foram ajustados modelos de crescimento não lineares (logístico) aos dados de peso-idade de cada animal, e em um segundo passo as estimativas dos parâmetros de tais modelos foram consideradas como fenótipos em um modelo de regressão (LASSO Bayesiano - BL) cujas covariáveis foram os genótipos dos marcadores SNPs. Este enfoque possibilitou estimar os valores genéticos genômicos (GBV) para peso em qualquer tempo da trajetória de crescimento, refletindo na confecção de curvas de crescimento genômicas, as quais permitiram a identificação de grupos de indivíduos geneticamente superiores em relação à eficiência de crescimento. Os dados simulados utilizados neste estudo foram constituídos de 2000 indivíduos (1000 na população de treinamento e 1000 na população de validação) contendo 453 marcadores SNPs distribuídos sobre cinco cromossomos. Os resultados indicaram a alta eficiência do método BL em predizer GBVs da população de validação com base na população de treinamento (coeficientes de correlação variaram entre 0,79 e 0,93), bem como a alta eficiência na detecção de QTLs, uma vez que os marcadores com maiores efeitos estimados encontravam-se em posições dos cromossomos próximas àquelas nas quais se encontravam os verdadeiros QTLs postulados na simulação.
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Djurić-Jovičić M, Radovanović S, Petrović I, Azevedo C, Mann G, Popović M. The impact of functional electrical stimulation (FES) on freezing of gait (FOG) in patients with Parkinson’s disease. Clin Neurophysiol 2013. [DOI: 10.1016/j.clinph.2012.12.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Rocha S, Casal G, Al-Quraishy S, Azevedo C. Morphological and molecular characterization of a new myxozoan species (Myxosporea) infecting the gall bladder of Raja clavata (Chondrichthyes), from the Portuguese Atlantic Coast. J Parasitol 2012; 99:307-17. [PMID: 22998576 DOI: 10.1645/ge-3150.1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Microscopic and molecular procedures are used to describe a new myxosporean species, Chloromyxum clavatum n. sp., infecting the cartilaginous fish Raja clavata Linnaeus, 1758 (Chondrichthyes: Rajidae), collected from the northwest Atlantic coast of Portugal. Young plasmodia and mature spores were found floating free in the gall bladder of R. clavata . Spores were spherical to subspherical with a pointed anterior end, measuring14.4 ± 0.5 μm (n = 25) in length, 11.9 ± 0.5 μm (n = 25) in width, and 9.4 ± 0.5 μm (n = 15) in thickness. The spore's wall was composed of 2 equally sized valves, each displaying 6-8 elevated surface ridges and a bundle of several tapering caudal filaments attached to the basal portion. Spores contained 4 pyriform equally sized polar capsules (5.5 ± 0.4 μm × 2.9 ± 0.5 μm) (n = 25), each possessing an obliquely arranged isofilar polar filament coiled in 7-8 coils. Morphological data, host specificity, tissue tropism, and molecular analysis of the SSU rDNA gene identify this parasite as a new species of Chloromyxum. Neighbor-joining and maximum likelihood further reveal the parasite clustering with other species of Chloromyxum infecting the gall bladder of marine cartilaginous fish to form a clade positioned at the base of the freshwater clade, therefore constituting an exception to the major division of the class Myxosporea into the freshwater and marine clades, while supporting the existence of a correlation between tissue tropism and myxosporean phylogeny.
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Affiliation(s)
- S Rocha
- Department of Cell Biology, Institute of Biomedical Sciences, University of Porto (ICBAS/UP), Porto, Portugal
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Azevedo C, Riley C. A Mother-Daughter Pair with Neuromyelitis Optica Spectrum Disorder (P07.063). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p07.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Ribeiro F, Alves AJ, Teixeira M, Miranda F, Azevedo C, Duarte JA, Oliveira J. Exercise training increases interleukin-10 after an acute myocardial infarction: a randomised clinical trial. Int J Sports Med 2011; 33:192-8. [PMID: 22187388 DOI: 10.1055/s-0031-1297959] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The present study assessed the effects of exercise training on biomarkers of inflammation in postinfarction patients. This single-centre prospective randomized controlled trial encompassed 42 patients after the first myocardial infarction divided into exercise-training (n=22) or usual care (n=20) groups. Complete randomization was performed by choosing one of 2 sealed envelopes. The exercise-training group participated in an 8-week programme comprising 3 aerobic exercise sessions per week. The control group received usual care. The main measures were changes in circulating levels of C-reactive protein, interleukin (IL)-6 and -10, soluble vascular cell adhesion molecule-1 (VCAM-1), soluble intercellular adhesion molecule-1 (ICAM-1), anthropometrics, dietary intake, daily physical activity, and cardiorespiratory fitness. 4 patients terminated the study prematurely, leaving 38 for the statistical analysis (exercise-training, n=20; control group, n=18). In comparison to control group, exercise-training group improved IL-10 levels [1.7(7.0) vs. - 0.3(2.4) pg/mL, P<0.05], daily moderate-intensity physical activity (12.9±21.3 vs. - 0.7±13.4 min, P<0.05), and cardiorespiratory fitness (3.0±3.5 vs. 0.3±4.1 ml/min/kg, P<0.05). Additionally, the change in VCAM-1 and ICAM-1 levels was significantly higher in the control group (respectively, 26.6±112.1 vs. 94.1±90.0 ng/mL and 7.3±41.0 vs. 35.0±39 ng/mL, P<0.05). In conclusion, exercise training improved the inflammatory profile in post myocardial infarction patients by enhancing the anti-inflammatory cytokine IL-10.
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Affiliation(s)
- F Ribeiro
- University of Porto, Faculty of Sport, Research Centre in Physical Activity, Health and Leisure, Porto, Portugal.
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Rocha E, Matos E, Azevedo C. Henneguya amazonica n.sp. (Myxozoa, Myxobolidae), parasitizing the gills of Crenicichla lepidota Heckel, 1840 (Teleostei, Cichlidae) from Amazon river. Eur J Protistol 2011. [PMID: 23195230 DOI: 10.1016/s0932-4739(11)80233-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The authors present light and electron microscopical data on a myxosporidian found in the gills of Crenicichla lepidota Heckel, 1840 (Teleostei, Cichlidae) from the Amazon river. Based on the spore morphology, it is concluded that this species belongs to the family Myxobolidae, genus Henneguya, and that it constitutes a new species: Henneguya amazonica n.sp. The fine structure of sporogenesis shows that the development follows, in general, the pattern of this and other genera. Nevertheless, some ultrastructural features are reported for the first time in the genus Henneguya: intercellular bridges between daughter generative cells as well as tubuli arranged in aggregates and dispersed within the capsular matrix. The structure of the trophozoite wall suggests that the species is not highly pathogenic, but, to ascertain the true pathogenicity of the species, further studies are needed.
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Affiliation(s)
- E Rocha
- Laboratory of Histology and Embryology Institute of Biomedical Sciences, University of Oporto, Porto, Portugal
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Casal G, Matos E, Teles-Grilo L, Azevedo C. Ultrastructural and molecular characterization of a new microsporidium parasite from the Amazonian fish, Gymnorhamphichthys rondoni (Rhamphichthyidae). J Parasitol 2011; 96:1155-63. [PMID: 21158628 DOI: 10.1645/ge-2182.1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
A new species of a microsporidium found in the freshwater teleost Gymnorhamphichthys rondoni, collected on the lower Amazon River, is described based on light, ultrastructural, and phylogenetic studies. This parasite develops in the skeletal muscle of the abdominal cavity, forming whitish cyst-like structures containing numerous spores. Mature spores, lightly pyriform to ellipsoidal with rounded ends and measuring 4.25 ± 0.38 × 2.37 ± 0.42 µm (n = 30), were observed. The spore wall, which measured about 102 nm, was composed of 2 layers with approximately the same thickness. The isofilar polar filament was coiled, with 9-10 (rarely 8) turns. The posterior vacuole appeared as a pale area, occupying about 1/3 of the spore length, and contained a spherical posterosome composed of granular material that was denser at the periphery. The myofibrils located near the spores appeared to be in advanced degradation. Molecular analysis of the rRNA genes, including the ITS region, and phylogenetic analyses using maximum parsimony, maximum likelihood, and Baysesian inference were performed. The ultrastructural characteristics of the spores and the phylogenetic data strongly suggested that it is a new species related to Kabatana, Microgemma, Potaspora, Spraguea, and Tetramicra. We named this new microsporidian from Amazonian fauna as Kabatana rondoni n. sp.
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Affiliation(s)
- G Casal
- Department of Cell Biology, Institute of Biomedical Sciences (ICBAS) and Laboratory of Pathology, Centre for Marine and Environmental Research (CIIMAR), University of Porto, Lg. Abel Salazar no. 2, P-4099-003 Porto, Portugal
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Caldas C, Andrade P, Azevedo C, Piñeiro C, Serrão R, Soares J, Marques R, Sarmento A. Reasons for treatment discontinuation in the first year after beginning antiretroviral therapy in a cohort of Portuguese HIV-infected patients. J Int AIDS Soc 2010. [PMCID: PMC3112905 DOI: 10.1186/1758-2652-13-s4-p13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Correa T, Morais L, Sanches P, Feitosa H, Azevedo C, Figueiredo T, Taniguchi C, Caserta R, Barbas C. Clinical application of noninvasive ventilation in acute respiratory failure in a general ICU. Crit Care 2009. [PMCID: PMC4083896 DOI: 10.1186/cc7174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Bocchi EA, Braga FGM, Ferreira SMA, Rohde LEP, Oliveira WAD, Almeida DRD, Moreira MDCV, Bestetti RB, Bordignon S, Azevedo C, Tinoco EM, Rocha RM, Issa VS, Ferraz A, Cruz FDD, Guimarães GV, Montera VDSP, Albuquerque DC, Bacal F, Souza GEC, Rossi Neto JM, Clausell NO, Martins SM, Siciliano A, Souza Neto JDD, Moreira LF, Teixeira RA, Moura LZ, Beck-da-Silva L, Rassi S, Azeka E, Horowitz E, Ramires F, Simões MV, Castro RBPD, Salemi VMC, Villacorta Junior H, Vila JH, Simões R, Albanesi F, Montera MW. [III Brazilian Guidelines on Chronic Heart Failure]. Arq Bras Cardiol 2009; 93:3-70. [PMID: 20963312] [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: 05/30/2023] Open
Affiliation(s)
- Edimar Alcides Bocchi
- Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo.
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Bernardino A, Inácio R, Bastardo I, Paiva T, Medeiros N, Azevedo C. 634. Ascites and Locoregional Anesthesia - A Case Report. Reg Anesth Pain Med 2008. [DOI: 10.1136/rapm-00115550-200809001-00112] [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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Mathias C, Nascimento I, Carvalho G, Meyer R, Queiroz A, Freitas S, Freire S, Veloso E, Barbosa P, Costa S, Azevedo C. Role of Brazilian native medicinal plants on VEGF and PDGF receptors expression by glioblastoma cell line GL-15. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.12532] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
12532 Background: Malignant gliomas are typically angiogenic and express greater amounts of angiogenic factors. Vascular endothelial growth factor (VEGF) and platelet derived growth factor (PDGF) are prominent glioblastoma-associated multifunctional cytokines that stimulate migration, invasion and angiogenesis. Their receptor inhibiton is considered an important target for anitumoral therapy. Flavonoids obtained from Dimorphandra mollis and Croton betulaster, native medicinal plants from Bahia-Brazil, have been described as proliferation inhibitors of a human glioblastoma derived cell line and reduce VEGF production by GL-15. In this study, VEGF and PDGF receptors expression by GL-15 cultures treated with bevacizumab and flavonoids were evaluated. Methods: GL-15 cultures were treated or not with pendulitin and rutin flavonoids (100μM) and bevacizumab (1μg/mL). After 24 hours VEGF and PDGF receptors were analyzed by flow cytometry using monoclonal antibodies labeled with FITC. Results: Flow cytometry showed that the GL-15 cells expressed PDGFR alfa (10%), PDGFR beta (52%), VEGFR 1 (26%) and VEGFR 2 (95%). It was observed that the pendulitin and rutin flavonoids treated cells showed a reduction on PDGFR alfa expression (2 and 1,6 % respectively) but the other receptors expression was similar to the non-treated or DMSO treated controls. Conclusions: GL-15 human glioblastoma derived cell line expresses receptors to the angiogenic cytokines studied. VEGFR 2 expression was predominant and bevacizumab didn’t alter the receptors production. Flavonoids extracted from D. mollis and C. betulaster seem to have an inhibitory action on the PDGRF alfa expression but not on the others receptors. No significant financial relationships to disclose.
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Affiliation(s)
- C. Mathias
- Nucleo de Oncologia da Bahia, Salvador, Brazil; Federal University of Bahia, Salvador, Brazil
| | - I. Nascimento
- Nucleo de Oncologia da Bahia, Salvador, Brazil; Federal University of Bahia, Salvador, Brazil
| | - G. Carvalho
- Nucleo de Oncologia da Bahia, Salvador, Brazil; Federal University of Bahia, Salvador, Brazil
| | - R. Meyer
- Nucleo de Oncologia da Bahia, Salvador, Brazil; Federal University of Bahia, Salvador, Brazil
| | - A. Queiroz
- Nucleo de Oncologia da Bahia, Salvador, Brazil; Federal University of Bahia, Salvador, Brazil
| | - S. Freitas
- Nucleo de Oncologia da Bahia, Salvador, Brazil; Federal University of Bahia, Salvador, Brazil
| | - S. Freire
- Nucleo de Oncologia da Bahia, Salvador, Brazil; Federal University of Bahia, Salvador, Brazil
| | - E. Veloso
- Nucleo de Oncologia da Bahia, Salvador, Brazil; Federal University of Bahia, Salvador, Brazil
| | - P. Barbosa
- Nucleo de Oncologia da Bahia, Salvador, Brazil; Federal University of Bahia, Salvador, Brazil
| | - S. Costa
- Nucleo de Oncologia da Bahia, Salvador, Brazil; Federal University of Bahia, Salvador, Brazil
| | - C. Azevedo
- Nucleo de Oncologia da Bahia, Salvador, Brazil; Federal University of Bahia, Salvador, Brazil
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Gestal C, Azevedo C. Ultrastructural aspects of hepatic coccidiosis caused by Goussia lusca n. sp. (Apicomplexa: Coccidia) infecting Trisopterus luscus (Gadidae) from the NE Atlantic Ocean. Dis Aquat Organ 2006; 71:25-31. [PMID: 16921998 DOI: 10.3354/dao071025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Goussia lusca n. sp. is described from the liver of pouting Trisopterus luscus from the NE Atlantic Ocean in Ibero-Atlantic Portuguese and Spanish waters. Mature oocysts were 31.7 (28.8 to 35.4) microm in diameter. Each oocyst contained 4 ellipsoidal sporocysts arranged in an aleatory position, and measuring approximately 13.7 x 9.2 microm. Each sporocyst contained 2 sporozoites. Ultrastructurally, the sporocyst wall consisted of a dense inner layer 115 nm thick, transversely striated, regularly intercalated by thin grooves with electron-lucent spaces, and separated from the outer layer by a thin, light (electron-lucent) space. The outer layer was multilamellated and consisted of parallel dense bands alternating with light spaces. These lamellae formed filamentous extensions of the wall. The dehiscence suture, a characteristic feature of the genus, was present in the sporocysts. No external clinical signs were observed in the host fish. Parasites observed in the liver tissue were often enveloped in a yellowish-brown matrix, generally known as 'yellow bodies'. Sometimes sporocysts were observed in direct contact with the liver cells. Parasites in degeneration and aggregations of amylopectin granules were frequently observed surrounded by host inflammatory cells. In severe infections, we observed large agglomerations of oocysts encapsulated by layers of concentrically arranged connective tissue forming large granulomas, which caused significant replacement of the host liver parenchyma by the parasite.
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Affiliation(s)
- C Gestal
- Department of Cell Biology, Institute of Biomedical Sciences (ICBAS, UP), and Laboratory of Protoparasitology, Center for Marine and Environmental Research (CIIMAR, UP), University of Porto, Largo Prof. Abel Salazar, no. 2, Porto 4099-003, Portugal
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Kádár E, Azevedo C. Unidentified extracellular prokaryotes within the byssal threads of the deep-sea vent musselBathymodiolus azoricus. Parasitology 2006; 133:509-13. [PMID: 16772047 DOI: 10.1017/s0031182006000357] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2005] [Revised: 03/08/2006] [Accepted: 03/09/2006] [Indexed: 11/05/2022]
Abstract
Bacterial symbiosis and/or parasitism is widespread in hydrothermal bivalves, and is typically developed in gills, with a lower incidence in mantle and digestive glands, while it has never been described in byssus. Using ultrastructural examination, we provide evidence for the existence of a potentially new group of filamentous prokaryotic organism inBathymodiolus azoricusbyssus, with putative parasitic influence. Additionally, a cystic, undefined organism was found with an unclear physiological role within the spongy net of the byssus plaque. Our results indicate that in spite of its antibacterial protective sheath, byssus gives access to prokaryotic organisms becoming prone to failure through damaged collagen fibres.
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Affiliation(s)
- E Kádár
- Department of Oceanography and Fisheries, University of Azores, Rua Cais de Santa Cruz, 9900 Horta, Portugal.
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Abstract
Inositol pyrophosphates belong to the diverse family of inositol polyphosphate species that have a range of signaling functions. Since the discovery of inositol pyrophosphates in the early 1990s, enormous progress has been achieved in characterising this class of molecules, linking their biological presence to a wide range of cellular functions, including vesicular trafficking, apoptosis, telomere maintenance and protein phosphorylation. The activity of inositol pyrophosphates appears to be related to their rapid turnover in cells and also to their pyrophosphate groups, which are considered to contain high-energy bonds. Together, these observations suggest that inositol pyrophosphates may represent a class of cellular messengers with basic and not yet fully characterised functions. This review aims at summarising the recent progress of our knowledge of this exciting class of molecules, from inositol pyrophosphate discovery to the description of their physiological functions.
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Affiliation(s)
- M Bennett
- Medical Research Council (MRC) Cell Biology Unit and Laboratory for Molecular Cell Biology, Department of Biochemistry and Molecular Biology, University College London, Gower Street, London WC1E 6BT, United Kingdom
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Azevedo C, Padovan I, Corral L, Padovan P. Ultrastructural description of an unidentified apicomplexan oocyst containing bacteria-like hyperparasites in the gill of Crassostrea rizophorae. Dis Aquat Organ 2005; 65:153-7. [PMID: 16060268 DOI: 10.3354/dao065153] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Oocysts of an unidentified coccidian are reported in this study to parasitize the gills of the oyster Crassostrea rizophorae (Mollusca, Bivalvia) collected near the city of Recife (Itamaracá Island, 07 degrees 38' 00" S, 34 degrees 48' 06" W), Brazil. Oocysts appeared as light and dense forms, both containing rod-shaped, bacteria-like hyperparasites (BL). Both light and dense oocysts were spherical, 4.3 to 4.7 pm in diameter, but denser oocysts had irregular contours. Both forms consisted of a thick dense wall (approximately 165 nm thick) consisting of 3 layers. The outermost, a dense and irregular layer about 25 nm thick, possessed numerous bead-like structures and some slender conical projections (up to 1.5 microm long). The inner layer of the wall was formed by a dense and homogenous layer about 125 nm thick. Between these 2 layers, a thin light layer about 12 nm thick was present. Uninucleated sporocysts occupied the internal space of the oocyst and contained some rod-shaped BL and mitochondria surrounded by numerous ribosome-like particles. The dense forms of the oocysts showed the same structures described in the lighter forms and appeared to be the final maturation form of the oocysts. Free sporozoites were occasionally observed among oocysts.
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Affiliation(s)
- C Azevedo
- Department of Cell Biology, Institute of Biomedical Sciences, University of Porto, Largo Abel Salazar no. 2, 4099-003 Porto, Portugal.
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Gestal C, Azevedo C. Ultrastructure of Goussia cruciata (Apicomplexa: Coccidia) infecting the liver of horse mackerel, Trachurus trachurus (L.), from Ibero-Atlantic waters. J Fish Dis 2005; 28:125-32. [PMID: 15752272 DOI: 10.1111/j.1365-2761.2005.00611.x] [Citation(s) in RCA: 7] [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: 05/12/2023]
Abstract
The ultrastructure of developmental stages of Goussia cruciata and the pathology they cause in the liver of Trachurus trachurus (Teleostei: Carangidae) caught off the Galician (North-West Spain) and Portuguese North Atlantic coasts are described. Each oocyst contained four ellipsoidal sporocysts, with two sporozoites. The sporocyst wall consisted of a thick and dense inner layer with transverse striations and a multi-lamellated outer layer formed by parallel dense internal bands alternating with lighter areas. The lamellae formed filamentous extensions of the wall. The sporocyst wall striation period was smaller than that observed in G. clupearum, which has a similar habitat. The dehiscence suture, characteristic of the genus, was present in the sporocysts of G. cruciata. The sporocysts were arranged in a symmetrical and characteristic cross shape. A large number of sporocysts with sporozoites were observed in direct contact with host liver cells. No macroscopic lesions were observed. In heavily infected fish, aggregations of oocysts were often enveloped in a 'yellow body' composed of amylopectin granules derived from the parasite and necrotic or aggregated host cells. Degenerating parasites were frequently observed in liver tissue. Host inflammatory cells were accumulated near some oocysts. The ultrastructure of the parasite, together with its strict host specificity, confirmed G. cruciata as a separate and valid species.
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Affiliation(s)
- C Gestal
- Department of Cell Biology, Institute of Biomedical Sciences (ICBAS), and Laboratory of Protoparasitology, Centre for Marine and Environmental Research (CIIMAR), University of Oporto, Porto, Portugal
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Tuntiwaranuruk C, Chalermwat K, Upatham ES, Kruatrachue M, Azevedo C. Investigation of Nematopsis spp. oocysts in 7 species of bivalves from Chonburi province, Gulf of Thailand. Dis Aquat Organ 2004; 58:47-53. [PMID: 15038451 DOI: 10.3354/dao058047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
This is the first detailed report of Nematopsis spp. in Thai bivalves. A monthly survey was conducted on 7 species of commercial bivalves from Chonburi province, on the eastern seaboard of Thailand, from November 2000 to November 2001 to investigate the prevalence of the apicomplexan parasite Nematopsis Schneider, 1892. Nematopsis spp. sporozoites were found in the cultivated bivalves Arcuatula arcuatula, Anadara granosa and Perna viridis as well as the locally harvested Paphia undulata. They were not found in Donax faba, Meretrix meretrix or Saccostrea cucullata. Using light microscopy, we were able to identiby 4 oocyst morphotypes of the gregarine Nematopsis spp. Prevalence of Nematopsis spp. during the 13 mo sampling period was highest in A. arcuatula (91.8%; n = 110) and lowest in A. granosa (59.2%; n = 130). The morphology of the oocysts differed between hosts, with an average (x +/- SD) length/width of 16.28 +/- 0.64/12.01 +/- 0.35 microm (n = 50) for A. arcuatula, 16.90 +/- 0.71/12.69 +/- 0.33 microm (n = 50) for A. granosa, 17.61 +/- 0.69/12.72 +/- 0.36 microm (n = 50) for P. viridis, and 11.21 +/- 0.62/8.55 +/- 0.52 microm (n = 50) for P. undulata. Identification of oocysts of these apicomplexan gregarines to species was not attempted. The prevalence of infection in relation to habitat and time of sampling is discussed.
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Affiliation(s)
- C Tuntiwaranuruk
- Department of Biology, Faculty of Science, Burapha University, Chonburi 20131, Thailand.
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Matos E, Corral L, Azevedo C. Ultrastructural details of the xenoma of Loma myrophis (phylum Microsporidia) and extrusion of the polar tube during autoinfection. Dis Aquat Organ 2003; 54:203-207. [PMID: 12803384 DOI: 10.3354/dao054203] [Citation(s) in RCA: 10] [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] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Xenomas of the recently described new microsporidian species Loma myrophis parasitizing the gut tissue of the Amazonian fish Myrophis platyrhynchus (family Ophichthidae) were described by light- and transmission-electron microscopy. The xenoma consisted of a thin fibrillar wall that surrounded a hypertrophic host cell cytoplasm containing numerous microsporidian developmental stages and spores. Several spores showed different stages of natural extrusion of the polar tube. Numerous longitudinal and transverse sections of the extruded polar tubes were observed in developing life-cycle stages (spores excepted), the nucleus of hypertrophic host cell, the xenoma wall and surrounding fibroblasts. The extruded polar tubes were projected in all directions with no preferential orientation. These aspects suggested that autoinfection occurred within this xenoma.
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Affiliation(s)
- E Matos
- Department of Animal Biology, Federal Rural University of the Amazonia, Belém, Brazil
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Casal G, Matos E, Azevedo C. Light and electron microscopic study of the myxosporean, Henneguya friderici n. sp. from the Amazonian teleostean fish, Leporinus friderici. Parasitology 2003; 126:313-9. [PMID: 12741510 DOI: 10.1017/s0031182003002944] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [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: 11/07/2022]
Abstract
A new histozoic species of myxosporean was found to infect the gill filaments, gut, kidney and liver of the freshwater teleost Leporinus friderici, collected from the estuarine region of the Amazon, near the city of Belém, Brazil. The plasmodia show asynchronous development, at any one time composed of mature spores and all sporogonic stages. The ellipsoidal spore body, measuring 10.4 microm long and 5.7 microm wide, consists of 2 equal shell valves adhering together along the straight suture line. Each valve has a caudal process measuring 23.3 microm in length. There are 2 symmetric polar capsules, without intercapsular appendix, measuring 5.0 microm x 2.1 microm, and each has a polar filament with 7-8 coils. In general, ultrastructural details of sporoblast and spore development are in agreement with previously described myxosporeans. Some ultrastructural aspects such as cellular alterations of the pericyte in the different organs infected and characterization of the sporoplasmosomes during the sporoplasm maturation are described. This parasite was studied under light and electron microscope and compared with others species of the genus Henneguya, considering also host specificity. From our observations we propose the creation of a new species, Henneguya friderici n. sp.
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Affiliation(s)
- G Casal
- Department of Biological Sciences, High Institute of Health Sciences, 4580 Paredes, Portugal.
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Vital P, Corral L, Matos E, Azevedo C. Ultrastructural aspects of the myxosporean Henneguya astyanax n. sp. (Myxozoa: Myxobolidae), a parasite of the Amazonian teleost Astyanax keithi (Characidae). Dis Aquat Organ 2003; 53:55-60. [PMID: 12608569 DOI: 10.3354/dao053055] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
This study reports light and electron microscopical aspects of a myxosporean found in the gills of the freshwater teleost Astyanax keithi Géry, Planquete & Le Bail, 1996 (family Characidae), collected from the estuarine region of the Amazon River, near Belém, Brazil. The prevalence of infection was 23%. In interlamellar spaces of the gills, ellipsoidal whitish cyst-like plasmodia structures were present, which contained spores. The spores had a spermatozoa-like appearance (47.8 +/- 0.71 microm in total length) with a fusiform body (15.2 +/- 0.77 pm in length, 5.7 +/- 0.71 microm in width and 4.2 +/- 0.31 microm in thickness), and each of the 2 valves presented a tapering tail (32.6 +/- 1.11 microm in length). The valves surrounded a binucleate sporoplasm cell and 2 polar capsules (5.0 +/- 0.13 microm in length, 1.5 +/- 0.07 microm in width) that contained 8 to 9 coils of the polar filament. In the sporoplasm, several unique sporoplasmosomes were visible. A synoptic table of spore measurements of known Brazilian Henneguya species is presented. The spores differed from those of previously described species. Based on spore morphology, it is concluded that this species belongs to the family Myxobolidae, genus Henneguya, and that it constitutes a new species: H. astyanax n. sp.
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Affiliation(s)
- P Vital
- Department of Cell Biology, Institute of Biomedical Sciences and CIIMAR, University of Oporto, Lg. A. Salazar No. 2, 4099-003 Porto, Portugal
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Matos E, Santos MNS, Azevedo C. Biflagellate spermatozoon structure of the hermaphrodite fish Satanoperca jurupari (Heckel, 1840) (Teleostei, Cichlidae) from the Amazon River. BRAZ J BIOL 2002; 62:847-52. [PMID: 12659036 DOI: 10.1590/s1519-69842002000500014] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [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: 11/22/2022] Open
Abstract
The ultrastructural features of the sperm were studied in the hermaphroditic teleost Satanoperca jurupari HECKEL, 1840 from Amazon River. Spermatocytes, spermatids and sperm develop in the testicular cysts among the different oocyte stages. Different stages of early spermatocyte development, mainly the ones with synaptonemal complexes were often observed. The mature spermatozoa belong to the introsperm type, with a short head (approximately 3 microns long and 1.3 microns wide) without acrosome, short midpiece (approximately 1.2 microns long and 1.8 microns wide) containing several mitochondria surrounding two centrioles and forming a mitochondrial collar. They have two flagella (each approximately 15 microns long) each of which has a common 9 + 2 microtubular pattern. Each flagellum has two opposite lateral cytoplasmic extensions that begin about 3 microns the midpiece still close to the end piece of flagellum.
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Affiliation(s)
- E Matos
- Faculdade de Ciências Agrárias do Pará, Av. Tancredo Neves, 2501, CEP 66077-530, Belém, PA, Brazil.
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Casal G, Matos E, Azevedo C. Ultrastructural data on the spore of Myxobolus maculatus n. sp. (phylum Myxozoa), parasite from the Amazonian fish Metynnis maculatus (Teleostei). Dis Aquat Organ 2002; 51:107-112. [PMID: 12363082 DOI: 10.3354/dao051107] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Light and electron microscopy studies of a myxosporean, parasitic in the intertubular interstitial tissue of the kidney of the freshwater teleost fish Metynnis maculatus Kner, 1860 (Characidae) from the lower Amazon River (Brazil), are described. We observed polysporic histozoic plasmodia delimited by a double membrane and with several pinocytic channels and containing several life cycle stages, including mature spores. The spore body was of pyriform shape and was 21.0 microm long, 8.9 microm wide and 7.5 microm thick. Elongated-pyriform polar capsules were of equal size (12.7 x 3.2 microm) and contained a polar filament with 14 or 15 coils. The spore features fit those of the genus Myxobolus. Densification of the capsular primordium matrix, which increased in density from the inner core outwards, differentiating at the periphery into small microfilaments measuring 45 nm each, and tubuli arranged in aggregates and dispersed within the capsular matrix of the mature spores, are described. Based on the morphological differences and specificity of the host, we propose the creation of a new species named Myxobolus maculatus n. sp.
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Affiliation(s)
- G Casal
- Department of Biological Sciences, High Institute of Health Sciences, Paredes, Portugal
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Azevedo C. Ultrastructural aspects of a new species, Vavraia mediterranica (Microsporidia, Pleistophoridae), parasite of the French Mediterranean shrimp, Crangon crangon (Crustacea, Decapoda). J Invertebr Pathol 2001; 78:194-200. [PMID: 12009799 DOI: 10.1006/jipa.2001.5072] [Citation(s) in RCA: 13] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The life cycle stages of a new species of the genus Vavraia (Microsporidia, Pleistophoridae), which parasitizes the shrimp Crangon crangon (Crustacea, Decapoda), were examined by light and electron microscopy. This parasite was monomorphic with polysporous sporogony and developed in the skeletal muscle of the host. The multinucleate sporogonial plasmodium divided by plasmotomy and multiple division into uninucleate sporoblasts. All stages were surrounded by a thick and amorphous dense coat external to the plasmalemma. This structure gradually became a merontogenetic sporophorous vacuole (MSV) where the sporonts developed into sporoblasts. The MSV was filled with episporontal granular secretory products and eventually contained up to 50 uninucleate spores. During spore morphogenesis, these episporontal granular products within the MSV became organized as episporontal tubular-like structures. In transverse sections, these structures showed a mean diameter of 1.0 microm, but disappeared during the final phase of the spore maturation. Mature spores were ellipsoidal to slightly pyriform and measured 2.30 x 1.41 microm. The polar filament was anisofilar and consisted of a single coil with six to seven turns (rarely five). This new species is named Vavraia mediterranica n. sp.
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Affiliation(s)
- C Azevedo
- Department of Cell Biology, Institute of Biomedical Sciences and CIIMAR, University of Oporto, 4099-003 Porto, Portugal.
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Abstract
The U-box is a highly conserved domain recently identified at the C terminus of yeast UFD2, an E4 ubiquitination factor. In yeast, UFD2 is the only U-box-containing protein, but there are two UFD2 homologs and several other proteins containing a U-box domain in humans. Intriguingly, a database search revealed 37 predicted proteins containing a U-box in Arabidopsis. The plant U-box (PUB) proteins form five distinct subclasses, suggesting that they play diverse roles. The ARC1 gene from Brassica, required for self-incompatibility, is currently the only PUB gene functionally characterized. Here, we discuss the characteristics and possible functions of the PUB gene family.
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Affiliation(s)
- C Azevedo
- The Sainsbury Laboratory, John Innes Centre, Colney Lane, NR4 7UH, Norwich, UK
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Azevedo C. Ultrastructural description of the spore maturation stages of the clam parasite Minchinia tapetis (Vilela, 1951) (Haplosporida: Haplosporidiidae). Syst Parasitol 2001; 49:189-94. [PMID: 11466479 DOI: 10.1023/a:1010620721138] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [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: 11/12/2022]
Abstract
The fine structure of maturing spores of a haplosporidian parasite found in the gill, mantle and foot tissues of Ruditapes decussatus L. (Mollusca, Bivalvia), a species of commercial importance in Portugal, is described. When observed free in suspension, immature spores exhibit one or two epispore cytoplasmic extensions (ECE) which constitute a projection of a portion of the exosporoplasm, sometimes without ultrastructural organisation, surrounded by the plasmalemma. Free spores observed by light microscopy (LM) after 3-5 days of incubation in filtered sea-water exhibit no ECE attached to the spore wall. The mature spore is ovoid to ellipsoid, operculate, uninucleate and measures c. 4.8 microm long and c. 3.9 microm wide. The spore shape and size and the identity of the host living in the same geographical region suggest that this species is the same as previously described using LM observations as Haplosporidium tapetis Vilela, 1951 and later transferred to Minchinia Labbé, 1896.
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Affiliation(s)
- C Azevedo
- Department of Cell Biology, Institute of Biomedical Sciences and CIIMAR, University of Oporto, 4099.003 Porto, Portugal
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Pontes J, Lopes M, Ribeiro M, Guimarães J, Videira J, Azevedo C, Santos G. Isolate limb perfusion with fotemustine after chemosensitization with dacarbazine in melanoma. Eur J Cancer 2001. [DOI: 10.1016/s0959-8049(01)80789-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sousa A, Rodrigues H, Azevedo I, Silva H, Azevedo C, Santos G. A comparison of young and old women with early stage breast cancer. Eur J Cancer 2001. [DOI: 10.1016/s0959-8049(01)81157-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Azevedo C. Fine structure of sporogonic stages of Goussia clupearum (Apicomplexa: Eimeriidae) in the liver of infected fish (Belone belone L.), using light and electron microscopy. Parasitol Res 2001; 87:326-30. [PMID: 11355683 DOI: 10.1007/pl00008586] [Citation(s) in RCA: 11] [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: 11/30/2022]
Abstract
A coccidian species, Goussia clupearum (L.) is reported to parasitize the liver of a new host, Belone belone (Teleostei: Belonidae), caught on the Atlantic coast at the north of Portugal. The parasitophorous vacuole containing oocysts was attached to the host's liver cells. Spherical oocysts (approximately 21.2 microm diameter), each containing four ellipsoidal elongated sporocysts (10.5 x 6.3 microm), were enclosed in the parasitophorous vacuole. Each sporocyst contained two sporozoites. The micropyle was absent, but a polar granule (without Stieda body) was present. Each sporozoite possessed four refractile bodies. During sporoblastogenesis and sporogenesis, one or two dense polar bodies were found within the oocysts. They were composed of a dense homogeneous core, surrounded by a ring of dense granular material. On occasion, we observed some sporocysts in direct contact with host cells. This paper describes the morphology and ultrastructural details of the oocysts, sporocysts and sporozoites of G. clupearum. This species seems to represent the only coccidium described in fish from this Atlantic coast.
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Affiliation(s)
- C Azevedo
- Department of Cell Biology, Institute of Biomedical Sciences, University of Oporto, Porto, Portugal.
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Vita P, Corral L, Azevedo C. New ultrastructural aspects of the spermatozoon of Aplysia depilans (Gastropoda, Opisthobranchia). JOURNAL OF SUBMICROSCOPIC CYTOLOGY AND PATHOLOGY 2001; 33:165-71. [PMID: 11686398] [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: 02/22/2023]
Abstract
The spermatozoon of the sea hare Aplysia depilans was studied under scanning (SEM) and transmission electron microscopy (TEM). Previous descriptions of this sperm and related species, both from light and electron microscopy, were inconsistent with each other. These descriptions include A. depilans, A. punctata, A. fasciata, A. kurodai and Bursatella leachiplei. Several detailed micrographs provide a new ultrastructural model and reveal new aspects such as the presence of acrosome and the absence of a glycogen piece, therefore the modified dense ring is the terminal structure. Results also show that previous models are incorrect in many aspects. The spermatozoon is a long slender uniflagellated cell with a complex helical structure and a length of approximately 165 microm. Observed in SEM the spermatozoon has an undifferentiated head and tail. The nucleus is cord-shaped and helically intertwined with the axoneme/mitochondrial derivative complex. The mitochondrial derivative has only one glycogen helix. Glycogen presence was demonstrated by Thiéry's method. Typical heterobranchia spermatozoa features are recognised. From bibliographic analysis, a high degree of similarity was found with the sperm of Pleurobranchea maculata (Notaspidea).
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Affiliation(s)
- P Vita
- Department of Cell Biology, Institute of Biomedical Sciences, and Center of Marine and Environmental Research, University of Oporto, Portugal
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Azevedo C, Corral L, Vivarès CP. Ultrastructure of the microsporidian Inodosporus octospora (Thelohaniidae), a parasite of the shrimp Palaemon serratus (Crustacea, Decapoda). Dis Aquat Organ 2000; 41:151-158. [PMID: 10918983 DOI: 10.3354/dao041151] [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
A parasite of the muscle of the shrimp Palaemon serratus has been examined by light and electron microscopy. Development occurs among myofibrils and induces ultrastructural alterations of the muscle fibers causing white discoloration. This microsporidian is characterized by uninucleate, later diplokaryotic and di-diplokaryotic meronts. The mother cell develops by rosette-like budding into 8 uninucleate sporoblasts, each containing 3 tape-like filaments attached to the wall that is enclosed in a persistent sporophorous vacuole. Each sporoblast gives rise to a uninucleate spore that possesses 3 elongated tape-like filaments attached to the spore wall, like spore tails. The morphological characters of the spores, redescribed in the present study, suggested that the spores belonged to Inodosporous octospora. The possibility that in the future members of Inodosporus sp. may be considered a new parasite group is discussed.
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Affiliation(s)
- C Azevedo
- Department of Cell Biology, University of Oporto, Portugal.
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