1
|
Gómez-Bañuelos E, Goldman DW, Andrade V, Darrah E, Petri M, Andrade F. Uncoupling interferons and the interferon signature explains clinical and transcriptional subsets in SLE. Cell Rep Med 2024:101569. [PMID: 38744279 DOI: 10.1016/j.xcrm.2024.101569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 02/06/2024] [Accepted: 04/22/2024] [Indexed: 05/16/2024]
Abstract
Systemic lupus erythematosus (SLE) displays a hallmark interferon (IFN) signature. Yet, clinical trials targeting type I IFN (IFN-I) have shown variable efficacy, and blocking IFN-II failed to treat SLE. Here, we show that IFN type levels in SLE vary significantly across clinical and transcriptional endotypes. Whereas skin involvement correlated with IFN-I alone, systemic features like nephritis associated with co-elevation of IFN-I, IFN-II, and IFN-III, indicating additive IFN effects in severe SLE. Notably, while high IFN-II/-III levels without IFN-I had a limited effect on disease activity, IFN-II was linked to IFN-I-independent transcriptional profiles (e.g., OXPHOS and CD8+GZMH+ cells), and IFN-III enhanced IFN-induced gene expression when co-elevated with IFN-I. Moreover, dysregulated IFNs do not explain the IFN signature in 64% of patients or clinical manifestations including cytopenia, serositis, and anti-phospholipid syndrome, implying IFN-independent endotypes in SLE. This study sheds light on mechanisms underlying SLE heterogeneity and the variable response to IFN-targeted therapies in clinical trials.
Collapse
Affiliation(s)
| | - Daniel W Goldman
- Division of Rheumatology, The Johns Hopkins School of Medicine, Baltimore, MD 21224
| | - Victoria Andrade
- Division of Rheumatology, The Johns Hopkins School of Medicine, Baltimore, MD 21224
| | - Erika Darrah
- Division of Rheumatology, The Johns Hopkins School of Medicine, Baltimore, MD 21224
| | - Michelle Petri
- Division of Rheumatology, The Johns Hopkins School of Medicine, Baltimore, MD 21224
| | - Felipe Andrade
- Division of Rheumatology, The Johns Hopkins School of Medicine, Baltimore, MD 21224.
| |
Collapse
|
2
|
Gómez-Bañuelos E, Goldman DW, Andrade V, Darrah E, Petri M, Andrade F. Uncoupling interferons and the interferon signature explain clinical and transcriptional subsets in SLE. medRxiv 2023:2023.08.28.23294734. [PMID: 37693590 PMCID: PMC10491366 DOI: 10.1101/2023.08.28.23294734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Interferons (IFN) are thought to be key players in systemic lupus erythematosus (SLE). The unique and interactive roles of the different IFN families in SLE pathogenesis, however, remain poorly understood. Using reporter cells engineered to precisely quantify IFN-I, IFN-II and IFN-III activity levels in serum/plasma, we found that while IFNs play essential role in SLE pathogenesis and disease activity, they are only significant in specific subsets of patients. Interestingly, whereas IFN-I is the main IFN that governs disease activity in SLE, clinical subsets are defined by the co-elevation of IFN-II and IFN-III. Thus, increased IFN-I alone was only associated with cutaneous lupus. In contrast, systemic features, such as nephritis, were linked to co-elevation of IFN-I plus IFN-II and IFN-III, implying a synergistic effect of IFNs in severe SLE. Intriguingly, while increased IFN-I levels were strongly associated with IFN-induced gene expression (93.5%), in up to 64% of cases, the IFN signature was not associated with IFN-I. Importantly, neither IFN-II nor IFN-III explained IFN-induced gene expression in patients with normal IFN-I levels, and not every feature in SLE was associated with elevated IFNs, suggesting IFN-independent subsets in SLE. Together, the data suggest that, unlike the IFN signature, direct quantification of bioactive IFNs can identify pathogenic and clinically relevant SLE subsets amenable for precise anti-IFN therapies. Since IFN-I is only elevated in a subset of SLE patients expressing the IFN signature, this study explains the heterogeneous response in clinical trials targeting IFN-I, where patients were selected based on IFN-induced gene expression rather than IFN-I levels.
Collapse
Affiliation(s)
- Eduardo Gómez-Bañuelos
- Division of Rheumatology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21224
| | - Daniel W. Goldman
- Division of Rheumatology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21224
| | - Victoria Andrade
- Division of Rheumatology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21224
| | - Erika Darrah
- Division of Rheumatology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21224
| | - Michelle Petri
- Division of Rheumatology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21224
| | - Felipe Andrade
- Division of Rheumatology, The Johns Hopkins University School of Medicine, Baltimore, MD, 21224
| |
Collapse
|
3
|
Ferreira Guerra J, Pina J, Andrade V, Medeiros M, Guimaraes T, Gil M, Cunha J, Silva P, Pinheiro L. BCG installations may mimic prostate cancer on multiparametric magnetic resonance. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)02473-9] [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: 11/11/2022] Open
|
4
|
Ferreira Guerra J, Pina J, Andrade V, Medeiros M, Fernandes F, Guimarães T, Gil M, Cunha J, Silva P, Pinheiro L. What is the benefit of performing saturation prostate biopsies in addition to multiparametric magnetic resonance imaging targeted biopsies? EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)02486-7] [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: 11/11/2022] Open
|
5
|
Gomez-Bañuelos E, Wahadat MJ, Li J, Paz M, Antiochos B, Celia AI, Andrade V, Ferris DP, Goldman DW, Darrah E, Petri M, Andrade F. Alternative exon usage in TRIM21 determines the antigenicity of Ro52/TRIM21 in systemic lupus erythematosus. JCI Insight 2022; 7:163795. [PMID: 36040804 DOI: 10.1172/jci.insight.163795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 08/24/2022] [Indexed: 11/17/2022] Open
Abstract
The origin and mechanisms of autoantigen generation in systemic lupus erythematosus (SLE) are poorly understood. Here, we identified SLE neutrophils activated in vivo by interferon as a prominent source of Ro52/TRIM21 (hereafter Ro52), a critical autoantigen historically thought to be primarily generated by keratinocytes in SLE. Different to mononuclear cells and keratinocytes, SLE neutrophils are enriched in several unique Ro52 species containing a core sequence encoded by exon-4 (Ro52Ex4) in TRIM21. Ro52Ex4 is the main target of anti-Ro52 antibodies and is found in two Ro52 variants (Ro52α and a novel isoform termed Ro52γ) upregulated in SLE neutrophils. Further analysis of Ro52γ revealed a new subset of autoantibodies against a unique C-terminal domain (Ro52γCT) generated from a frameshift due to the lack of exon-6 in Ro52γ. Antibodies to Ro52Ex4 and Ro52γCT distinguish SLE patient subsets characterized by distinct clinical, laboratory, treatment and transcriptional profiles, which are not discerned by the "classical" anti-Ro52 antibodies. Together, these studies uncover interferon-activated neutrophils as a key source of unique immunogenic forms of Ro52 in SLE. Moreover, the finding of Ro52Ex4 and Ro52γCT as core targets of anti-Ro52 antibodies focus interest on Ro52γ as the potential isoform toward which immunological tolerance is initially lost in SLE.
Collapse
Affiliation(s)
- Eduardo Gomez-Bañuelos
- Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, United States of America
| | - M Javad Wahadat
- Department of Immunology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Jessica Li
- Division of Rheumatology, Johns Hopkins University and School of Medicine, Baltimore, United States of America
| | - Merlin Paz
- Division of Rheumatology, Johns Hopkins University and School of Medicine, Baltimore, United States of America
| | - Brendan Antiochos
- Division of Rheumatology, Johns Hopkins University and School of Medicine, Baltimore, United States of America
| | - Alessandra Ida Celia
- Rheumatology Unit, Department of Clinical Internal, Anaesthesiolagical and , Sapienza University of Rome, Rome, Italy
| | - Victoria Andrade
- Division of Rheumatology, Johns Hopkins University and School of Medicine, Baltimore, United States of America
| | - Dylan P Ferris
- Division of Rheumatology, Johns Hopkins University and School of Medicine, Baltimore, United States of America
| | - Daniel W Goldman
- Division of Rheumatology, Johns Hopkins University and School of Medicine, Baltimore, United States of America
| | - Erika Darrah
- Division of Rheumatology, Johns Hopkins University and School of Medicine, Baltimore, United States of America
| | - Michelle Petri
- Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, United States of America
| | - Felipe Andrade
- Division of Rheumatology, Johns Hopkins University School of Medicine, Baltimore, United States of America
| |
Collapse
|
6
|
Salgueiro D, Balikian P, Andrade V, Júnior O. Caffeine improves swimming speed, decreases the rate of perceived exertion and lactate concentration during a high intensity intermittent aerobic training session for male swimmers. Sci Sports 2022. [DOI: 10.1016/j.scispo.2021.08.008] [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]
|
7
|
Guimaraes T, Medeiros M, Andrade V, Guerra J, Gil M, Bernardino R, Pinheiro H, Pina J, Campos Pinheiro L. Kidney retained fragmented double J stent - a challenging problem for urologist with potential medico-legal serious implication. EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)00093-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|
8
|
Andrade V. Chilean Consumer Law and Policy: A Brief Outlook. J Consum Policy (Dordr) 2022; 45:49-69. [PMID: 35095141 PMCID: PMC8791085 DOI: 10.1007/s10603-022-09505-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 01/03/2022] [Indexed: 06/14/2023]
Abstract
Chilean consumer law and policy has a short but enthralling history. As compared with other jurisdictions such as EU countries, its bedrock is still in formation, particularly pertaining to its envisaged role in the regulatory spectrum applicable to consumer markets. However, this circumstance has not been a serious obstacle to several reforms carried out in recent years aimed at broadening its scope of action, including rethinking a proposal regarding the policy goals to be addressed by the national consumer agency, SERNAC. In that context, this article presents a brief account of the main features of Chilean consumer law, considering the current socioeconomic development level of the country, the main pieces of legislation concerning consumer protection in the Chilean legal framework-notably the Chilean Consumer Protection Act-as well as key elements of the public policy approach in this matter. A few examples of topics such as product liability and sale and purchase of consumer goods are also analysed in order to allow a comparison of the Chilean experience in consumer protection with other jurisdictions.
Collapse
|
9
|
Gutierrez MF, Ale A, Andrade V, Bacchetta C, Rossi A, Cazenave J. Metallic, metal oxide, and metalloid nanoparticles toxic effects on freshwater microcrustaceans: An update and basis for the use of new test species. Water Environ Res 2021; 93:2505-2526. [PMID: 34470080 DOI: 10.1002/wer.1637] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 05/12/2021] [Revised: 08/23/2021] [Accepted: 08/26/2021] [Indexed: 06/13/2023]
Abstract
In this article, we performed a literature review on the metallic, metal oxide, and metalloid nanoparticles (NP) effects on freshwater microcrustaceans, specifically focusing on (i) the main factors influencing the NP toxicity and (ii) their main ecotoxicological effects. Also, given that most studies are currently developed on the standard test species Daphnia magna Straus, we analyzed (iii) the potential differences in the biological responses between D. magna and other freshwater microcrustacean, and (iv) the ecological implications of considering only D. magna as surrogate of other microcrustaceans. We found that NP effects on microcrustaceans depended on their intrinsic properties as well as the exposure conditions. Among the general responses to different NP, we identified body burial, feeding inhibition, biochemical effects, metabolic changes, and reproductive and behavioral alterations. The differences in the biological responses between D. magna and other freshwater microcrustacean rely on the morphology (size and shape), ecological traits (feeding mechanisms, life cycles), and intrinsic sensitivities. Thus, we strongly recommend the use of microcrustaceans species with different morphological, physiological, and ecological characteristics in future ecotoxicity tests with NP to provide relevant information with regulation purposes regarding the discharge of NP into aquatic environments. PRACTITIONER POINTS: Nanoparticles effects depend on intrinsic and external factors. Nanoparticles affect the morphology, physiology, and behavior. Effects on Daphnia differ from other microcrustaceans. The use of more diverse test species is suggested.
Collapse
Affiliation(s)
- María Florencia Gutierrez
- Instituto Nacional de Limnología (CONICET-UNL), Santa Fe, Argentina
- Escuela Superior de Sanidad "Dr. Ramón Carrillo" (FBCB-UNL), Santa Fe, Argentina
| | - Analía Ale
- Instituto Nacional de Limnología (CONICET-UNL), Santa Fe, Argentina
| | - Victoria Andrade
- Instituto Nacional de Limnología (CONICET-UNL), Santa Fe, Argentina
| | - Carla Bacchetta
- Instituto Nacional de Limnología (CONICET-UNL), Santa Fe, Argentina
| | - Andrea Rossi
- Instituto Nacional de Limnología (CONICET-UNL), Santa Fe, Argentina
- Facultad de Humanidades y Ciencias (FHUC-UNL), Santa Fe, Argentina
| | - Jimena Cazenave
- Instituto Nacional de Limnología (CONICET-UNL), Santa Fe, Argentina
- Facultad de Humanidades y Ciencias (FHUC-UNL), Santa Fe, Argentina
| |
Collapse
|
10
|
Bernardino R, Gil M, Andrade V, Severo L, Alves M, Papoila AL, Campos Pinheiro L. What has changed during the state of emergency due to COVID-19 on an Academic Urology Department of a Tertiary Hospital in Portugal. Actas Urol Esp 2020; 44:604-610. [PMID: 32843150 PMCID: PMC7381920 DOI: 10.1016/j.acuro.2020.06.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Accepted: 06/30/2020] [Indexed: 12/13/2022]
Abstract
Objetivo Comparar la actividad del Servicio de Urología de un Hospital Universitario Portugués durante el estado de alarma y el periodo equivalente del año anterior. Comparamos el número de consultas electivas y pruebas diagnósticas urológicas, el número y el tipo de cirugías electivas, así como las características demográficas de los pacientes y las principales causas de ingreso al Servicio de Urgencias (SU) de Urología durante los dos periodos mencionados. Materiales y métodos Los datos de 691 pacientes que acudieron a urgencias desde el 18 de marzo de 2020 hasta el 2 de mayo de 2020 -y del mismo periodo del año anterior- se recogieron del software medico institucional. Los datos recopilados fueron edad, sexo, fecha de visita al servicio de urgencias, derivación desde otros hospitales, color del triaje, causa del ingreso, diagnóstico al alta y la necesidad de cirugía de urgencia u hospitalización. Con la intención de identificar las asociaciones entre las variables demográficas y clínicas con el hecho de haber sido sometido a una cirugía de urgencia (variable), se aplicaron modelos de regresión logística. Resultados El análisis multivariante mostró asociación entre el sexo del paciente con el hecho de ser sometido a una cirugía, con una disminución del 65,6% en las probabilidades para el género masculino. El periodo (COVID versus sin-COVID) no mostró una asociación significativa con la cirugía. Conclusión Nuestro departamento experimentó una reducción importante en la actividad. También observamos una reducción de las causas urgentes para acudir a los servicios de urgencias considerados menos graves. El porcentaje de casos que requirieron cirugía de urgencia y hospitalización fue mayor durante el periodo COVID.
Collapse
Affiliation(s)
- R Bernardino
- Urology Department, Central Lisbon Hospital Center, Lisbon, Portugal.
| | - M Gil
- Urology Department, Central Lisbon Hospital Center, Lisbon, Portugal
| | - V Andrade
- Urology Department, Central Lisbon Hospital Center, Lisbon, Portugal
| | - L Severo
- Urology Department, Central Lisbon Hospital Center, Lisbon, Portugal
| | - M Alves
- Epidemiology and Statistics Unit, Research Center, Central Lisbon Hospital Center, Lisbon, Portugal
| | - A L Papoila
- Epidemiology and Statistics Unit, Research Center, Central Lisbon Hospital Center, Lisbon, Portugal
| | - L Campos Pinheiro
- Urology Department, Central Lisbon Hospital Center, Lisbon, Portugal
| |
Collapse
|
11
|
Velasco R, Cordero P, Andrade V, Martín JM, Smith V, Ramón MD, Monteagudo C. Painful papule on the right arm of a woman. Clin Exp Dermatol 2018; 44:661-663. [PMID: 30362141 DOI: 10.1111/ced.13816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2018] [Indexed: 11/29/2022]
Affiliation(s)
- R Velasco
- Department of Dermatology, Clinical University Hospital of Valencia, Valencia, Spain
| | - P Cordero
- Department of Dermatology, Clinical University Hospital of Valencia, Valencia, Spain
| | - V Andrade
- Department of Pathology, Clinical University Hospital of Valencia, Valencia, Spain
| | - J M Martín
- Department of Dermatology, Clinical University Hospital of Valencia, Valencia, Spain
| | - V Smith
- Department of Dermatology, Clinical University Hospital of Valencia, Valencia, Spain
| | - M D Ramón
- Department of Dermatology, Clinical University Hospital of Valencia, Valencia, Spain
| | - C Monteagudo
- Department of Pathology, Clinical University Hospital of Valencia, Valencia, Spain
| |
Collapse
|
12
|
Falcao G, Andrade V, Medeiros V, Guimarães T, Bernardino R, Fernandes F, Carneiro C, Pinheiro L. 536 Brachyterapy and sexual morbidity. J Sex Med 2018. [DOI: 10.1016/j.jsxm.2018.04.442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
13
|
Winters ZE, Afzal M, Rutherford C, Holzner B, Rumpold G, da Costa Vieira RA, Hartup S, Flitcroft K, Bjelic-Radisic V, Oberguggenberger A, Panouilleres M, Mani M, Catanuto G, Douek M, Kokan J, Sinai P, King MT, Spillane A, Snook K, Boyle F, French J, Elder E, Chalmers B, Kabir M, Campbell I, Wong A, Flay H, Scarlet J, Weis J, Giesler J, Bliem B, Nagele E, del Angelo N, Andrade V, Assump¸ão Garcia D, Bonnetain F, Kjelsberg M, William-Jones S, Fleet A, Hathaway S, Elliott J, Galea M, Dodge J, Chaudhy A, Williams R, Cook L, Sethi S, Turton P, Henson A, Gibb J, Bonomi R, Funnell S, Noren C, Ooi J, Cocks S, Dawson L, Patel H, Bailey L, Chatterjee S, Goulden K, Kirk S, Osborne W, Harter L, Sharif MA, Corcoran S, Smith J, Prasad R, Doran A, Power A, Devereux L, Cannon J, Latham S, Arora P, Ridgway S, Coulding M, Roberts R, Absar M, Hodgkiss T, Connolly K, Johnson J, Doyle K, Lunt N, Cooper M, Fuchs I, Peall L, Taylor L, Nicholson A. International validation of the European Organisation for Research and Treatment of Cancer QLQ-BRECON23 quality-of-life questionnaire for women undergoing breast reconstruction. Br J Surg 2017; 105:209-222. [PMID: 29116657 DOI: 10.1002/bjs.10656] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 03/02/2017] [Accepted: 06/23/2017] [Indexed: 11/12/2022]
Abstract
Abstract
Background
The aim was to carry out phase 4 international field-testing of the European Organisation for Research and Treatment of Cancer (EORTC) breast reconstruction (BRECON) module. The primary objective was finalization of its scale structure. Secondary objectives were evaluation of its reliability, validity, responsiveness, acceptability and interpretability in patients with breast cancer undergoing mastectomy and reconstruction.
Methods
The EORTC module development guidelines were followed. Patients were recruited from 28 centres in seven countries. A prospective cohort completed the QLQ-BRECON15 before mastectomy and the QLQ-BRECON24 at 4–8 months after reconstruction. The cross-sectional cohort completed the QLQ-BRECON24 at 1–5 years after reconstruction, and repeated this 2–8 weeks later (test–retest reliability). All participants completed debriefing questionnaires.
Results
A total of 438 patients were recruited, 234 in the prospective cohort and 204 in the cross-sectional cohort. A total of 414 reconstructions were immediate, with a comparable number of implants (176) and donor-site flaps (166). Control groups comprised patients who underwent two-stage implant procedures (72, 75 per cent) or delayed reconstruction (24, 25 per cent). Psychometric scale validity was supported by moderate to high item-own scale and item-total correlations (over 0·5). Questionnaire validity was confirmed by good scale-to-sample targeting, and computable scale scores exceeding 50 per cent, except nipple cosmesis (over 40 per cent). In known-group comparisons, QLQ-BRECON24 scales and items differentiated between patient groups defined by clinical criteria, such as type and timing of reconstruction, postmastectomy radiotherapy and surgical complications, with moderate effect sizes. Prospectively, sexuality and surgical side-effects scales showed significant responsiveness over time (P < 0·001). Scale reliability was supported by high Cronbach's α coefficients (over 0·7) and test–retest (intraclass correlation more than 0·8). One item (finding a well fitting bra) was excluded based on high floor/ceiling effects, poor test–retest and weak correlations in factor analysis (below 0·3), thus generating the QLQ-BRECON23 questionnaire.
Conclusion
The QLQ-BRECON23 is an internationally validated tool to be used alongside the EORTC QLQ-C30 (cancer) and QLQ-BR23 (breast cancer) questionnaires for evaluating quality of life and satisfaction after breast reconstruction.
Collapse
Affiliation(s)
- Z E Winters
- Breast Cancer Surgery Patient-Reported and Clinical Outcomes Research Group, University of Bristol, School of Clinical Sciences, Southmead Hospital, Bristol, UK
- Surgical and Interventional Trials Unit, Division of Surgical Sciences, University College London, London, UK
- Quality of Life Office, School of Psychology, Faculty of Science, University of Sydney, New South Wales, Australia
| | - M Afzal
- Breast Cancer Surgery Patient-Reported and Clinical Outcomes Research Group, University of Bristol, School of Clinical Sciences, Southmead Hospital, Bristol, UK
| | - C Rutherford
- Quality of Life Office, School of Psychology, Faculty of Science, University of Sydney, New South Wales, Australia
| | - B Holzner
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical University of Innsbruck, Innsbruck, Austria
| | - G Rumpold
- Department of Medical Psychology, Evaluation Software Development, Rum, Austria
| | | | - S Hartup
- St James's University Hospital, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - K Flitcroft
- Breast and Surgical Oncology, Poche Centre, University of Sydney, New South Wales, Australia
| | - V Bjelic-Radisic
- Department of Breast Surgery and Gynaecology, Medical University Graz, Graz, Austria
| | - A Oberguggenberger
- Department of Psychiatry, Psychotherapy and Psychosomatics, Medical University of Innsbruck, Innsbruck, Austria
| | - M Panouilleres
- Department of Plastic Surgery, Besançon University Hospital, Besançon, France
| | - M Mani
- Department of Surgical Sciences, Plastic and Reconstructive Surgery, Uppsala University, Uppsala, Sweden
| | - G Catanuto
- Multidisciplinary Breast Care, Cannizzaro Hospital, Catania, Italy
| | - M Douek
- Department of Surgical Oncology, Guy's Hospital, London, London, UK
| | - J Kokan
- Cancer Resource Centre, Macclesfield Hospital, Macclesfield, UK
| | - P Sinai
- Breast Cancer Surgery Patient-Reported and Clinical Outcomes Research Group, University of Bristol, School of Clinical Sciences, Southmead Hospital, Bristol, UK
| | - M T King
- Quality of Life Office, School of Psychology, Faculty of Science, University of Sydney, New South Wales, Australia
- Sydney Medical School, Faculty of Medicine, University of Sydney, New South Wales, Australia
| | - A Spillane
- Poche Centre, Sydney, New South Wales, Australia
| | - K Snook
- Poche Centre, Sydney, New South Wales, Australia
| | - F Boyle
- Poche Centre, Sydney, New South Wales, Australia
| | - J French
- The Crown Princess Mary Westmead Breast Cancer Centre and Specialist Services, Sydney, New South Wales, Australia
| | - E Elder
- The Crown Princess Mary Westmead Breast Cancer Centre and Specialist Services, Sydney, New South Wales, Australia
| | - B Chalmers
- The Crown Princess Mary Westmead Breast Cancer Centre and Specialist Services, Sydney, New South Wales, Australia
| | - M Kabir
- The Crown Princess Mary Westmead Breast Cancer Centre and Specialist Services, Sydney, New South Wales, Australia
| | | | - A Wong
- Waikato Hospital, Hamilton, New Zealand
| | - H Flay
- Waikato Hospital, Hamilton, New Zealand
| | - J Scarlet
- Waikato Hospital, Hamilton, New Zealand
| | - J Weis
- University of Freiburg, Freiberg, Germany
| | - J Giesler
- University of Freiburg, Freiberg, Germany
| | - B Bliem
- Medical University Graz, Graz, Austria
| | - E Nagele
- Medical University Graz, Graz, Austria
| | | | - V Andrade
- Barretos Cancer Hospital, Sao Paolo, Brazil
| | | | - F Bonnetain
- Besançon University Hospital, Besançon, France
| | | | - S William-Jones
- Clinical Research Network, West Midlands, Queen-s Hospital, Burton upon Trent, UK
| | - A Fleet
- Clinical Research Network, West Midlands, Queen-s Hospital, Burton upon Trent, UK
| | - S Hathaway
- Clinical Research Network, West Midlands, Queen-s Hospital, Burton upon Trent, UK
| | - J Elliott
- Clinical Research Network, West Midlands, Queen-s Hospital, Burton upon Trent, UK
| | - M Galea
- Cancer Research Unit, Great Western Hospital, Swindon, UK
| | - J Dodge
- Cancer Research Unit, Great Western Hospital, Swindon, UK
| | - A Chaudhy
- Cancer Research Unit, Great Western Hospital, Swindon, UK
| | | | - L Cook
- Guy's Hospital, London, UK
| | | | - P Turton
- Leeds Teaching Hospital, Leeds, UK
| | - A Henson
- Leeds Teaching Hospital, Leeds, UK
| | - J Gibb
- Leeds Teaching Hospital, Leeds, UK
| | - R Bonomi
- Worthing Hospital, Western Sussex Hospitals, Worthing, UK
| | - S Funnell
- Worthing Hospital, Western Sussex Hospitals, Worthing, UK
| | - C Noren
- Worthing Hospital, Western Sussex Hospitals, Worthing, UK
| | - J Ooi
- Royal Bolton Hospital, Bolton, UK
| | - S Cocks
- Royal Bolton Hospital, Bolton, UK
| | - L Dawson
- Royal Bolton Hospital, Bolton, UK
| | - H Patel
- Royal Bolton Hospital, Bolton, UK
| | - L Bailey
- Royal Bolton Hospital, Bolton, UK
| | | | | | - S Kirk
- Salford Royal Hospital, UK
| | | | | | | | | | - J Smith
- Stepping Hill Hospital, Stockport, UK
| | - R Prasad
- Royal AlbertEdward Infirmary, Wigan, UK
| | - A Doran
- Royal AlbertEdward Infirmary, Wigan, UK
| | - A Power
- Royal AlbertEdward Infirmary, Wigan, UK
| | | | - J Cannon
- Royal AlbertEdward Infirmary, Wigan, UK
| | - S Latham
- Royal AlbertEdward Infirmary, Wigan, UK
| | - P Arora
- Tameside General Hospital, Ashton-under-Lyne, UK
| | - S Ridgway
- Tameside General Hospital, Ashton-under-Lyne, UK
| | - M Coulding
- Tameside General Hospital, Ashton-under-Lyne, UK
| | - R Roberts
- Tameside General Hospital, Ashton-under-Lyne, UK
| | - M Absar
- North ManchesterGeneral Hospital, Manchester, UK
| | - T Hodgkiss
- North ManchesterGeneral Hospital, Manchester, UK
| | - K Connolly
- North ManchesterGeneral Hospital, Manchester, UK
| | - J Johnson
- North ManchesterGeneral Hospital, Manchester, UK
| | - K Doyle
- North ManchesterGeneral Hospital, Manchester, UK
| | - N Lunt
- Cancer Resource Centre, Macclesfield Hospital, Macclesfield, UK
| | - M Cooper
- Bristol Breast Care Centre, Southmead Hospital, Bristol, UK
| | - I Fuchs
- Bristol Breast Care Centre, Southmead Hospital, Bristol, UK
| | - L Peall
- Bristol Breast Care Centre, Southmead Hospital, Bristol, UK
| | - L Taylor
- Bristol Breast Care Centre, Southmead Hospital, Bristol, UK
| | - A Nicholson
- Bristol Breast Care Centre, Southmead Hospital, Bristol, UK
| |
Collapse
|
14
|
Marreilha dos Santos AP, Andrade V, Aschner M. Neuroprotective and Therapeutic Strategies for Manganese-Induced Neurotoxicity. Clin Pharmacol Transl Med 2017; 1:54-62. [PMID: 30854510 PMCID: PMC6402347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Manganese (Mn) is an essential element required for growth, development and general maintenance of health. However, chronic or high occupational and environmental exposure to excessive levels of Mn has long been known to lead to a progressive neurological disorder similar to Parkinsonism. Manganism patients display a variety of symptoms, including mental, cognitive and behavioural impediments, as well as motor dysfunctions that are associated with basal ganglia dysfunction. Taking into account the pharmacokinetics and Mn-related toxicity mechanisms, several neuroprotective compounds and therapeutic approaches have been investigated to assess their efficacy in mitigating its neurotoxicity. Here, we will briefly address some of the toxic mechanisms of Mn, followed by neuroprotective strategies and therapeutic approaches aiming to reduce or treat Mn induced neurotoxicity. Natural and synthetic antioxidants, anti-inflammatory compounds, ATP/ADP ratio protectors and glutamate protectors have been introduced in view of decreasing Mn-induced neurotoxicity. In addition, the efficacy and mechanisms of several therapeutic interventions such as levodopa, ethylene-diamine-tetraacetic acid (EDTA) and para-aminosalicylic acid (PAS), aimed at ameliorating Mn neurotoxic symptoms in humans, will be reviewed.
Collapse
Affiliation(s)
- AP Marreilha dos Santos
- Institute of Medicine Research (iMed.ULisboa), Faculty of Pharmacy, University of Lisbon, Lisbon. Portugal
| | - V Andrade
- Institute of Medicine Research (iMed.ULisboa), Faculty of Pharmacy, University of Lisbon, Lisbon. Portugal
| | - M Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, USA
| |
Collapse
|
15
|
Peredo HA, Lee H, Donoso AS, Andrade V, Sánchez Eluchans N, Puyó AM. A high-fat plus fructose diet produces a vascular prostanoid alterations in the rat. ACTA ACUST UNITED AC 2015; 34:35-40. [PMID: 25761783 DOI: 10.1111/aap.12021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [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: 10/28/2014] [Revised: 01/14/2015] [Accepted: 01/21/2015] [Indexed: 01/20/2023]
Abstract
In the rat, a high-fat (HF) plus fructose (F) diet produces cardiovascular and metabolic alterations that resemble human metabolic syndrome. Prostanoids (PR), cyclo-oxygenase-derived arachidonic acid metabolites, have vasoactive properties and mediate inflammation. The aim of this study was to analyse the effect of a HF+F diet on blood pressure (BP), metabolic parameters and mesenteric vascular bed PR production in male Sprague-Dawley rats. Four groups were studied over 9 weeks (n = 6 each): control (C), standard diet (SD) and tap water to drink; F+SD and 10% w/v F solution to drink; HF 50% (w/w) bovine fat added to SD and tap water; and HFF, both treatments. PR were determined by HPLC. Blood pressure was elevated in all experimental groups. Triglyceridaemia, insulinaemia and HOMA-IR were increased in the F and HF groups. HF+F animals showed elevated glycaemia, insulinaemia, HOMA-IR and triglyceridaemia. F decreased the vasodilator prostanoids PGI2 and PGE2 in the mesenteric vascular bed. Body weight was not significantly altered. In HFF, production of PGE2 , PGF2 alpha and TXB2 was elevated. The increased BP in HF and HFF could be partly attributed to the imbalance in vascular PR production towards vasoconstrictors. On the other hand, this dietary modification could induce inflammation, which would explain the elevation of PGE2 . In the F group, hypertension could be related to decreased vasodilator PRs. The simultaneous administration of HF and F in the rat produces deleterious effects greater than observed when treatments are applied separately.
Collapse
Affiliation(s)
- H A Peredo
- CONICET, Cátedra Anatomía Histología and INFIBIOC, Junin 956, Buenos Aires, Argentina; Fac Farm y Bioq UBA, Cátedra Anatomía Histología and INFIBIOC, Junin 956, Buenos Aires, Argentina
| | | | | | | | | | | |
Collapse
|
16
|
Andrade V, Mateus ML, Santos D, Aschner M, Batoreu MC, Marreilha dos Santos AP. Arsenic and manganese alter lead deposition in the rat. Biol Trace Elem Res 2014; 158:384-91. [PMID: 24715659 PMCID: PMC4041197 DOI: 10.1007/s12011-014-9954-2] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 03/24/2014] [Indexed: 01/22/2023]
Abstract
Lead (Pb) continues to be a major toxic metal in the environment. Pb exposure frequently occurs in the presence of other metals, such as arsenic (As) and manganese (Mn). Continued exposure to low levels of these metals may lead to long-term toxic effects due to their accumulation in several organs. Despite the recognition that metals in a mixture may alter each other's toxicity by affecting deposition, there is dearth of information on their interactions in vivo. In this work, we investigated the effect of As and Mn on Pb tissue deposition, focusing on the kidney, brain, and liver. Wistar rats were treated with eight doses of each single metal, Pb (5 mg/Kg bw), As (60 mg/L), and Mn 10 mg/Kg bw), or the same doses in a triple metal mixture. The kidney, brain, liver, blood, and urine Pb, As, and Mn concentrations were determined by graphite furnace atomic absorption spectrophotometry. The Pb kidney, brain, and liver concentrations in the metal-mixture-treated group were significantly increased compared to the Pb-alone-treated group, being more pronounced in the kidney (5.4-fold), brain (2.5-fold), and liver (1.6-fold). Urinary excretion of Pb in the metal-mixture-treated rats significantly increased compared with the Pb-treated group, although blood Pb concentrations were analogous to the Pb-treated group. Co-treatment with As, Mn, and Pb alters Pb deposition compared to Pb alone treatment, increasing Pb accumulation predominantly in the kidney and brain. Blood Pb levels, unlike urine, do not reflect the increased Pb deposition in the kidney and brain. Taken together, the results suggest that the nephro- and neurotoxicity of "real-life" Pb exposure scenarios should be considered within the context of metal mixture exposures.
Collapse
Affiliation(s)
- V Andrade
- Instituto de Investigação do Medicamento, iMed.UL, Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - ML Mateus
- Instituto de Investigação do Medicamento, iMed.UL, Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - D Santos
- Instituto de Investigação do Medicamento, iMed.UL, Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - M Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, 10461 NY, USA
| | - MC Batoreu
- Instituto de Investigação do Medicamento, iMed.UL, Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - AP Marreilha dos Santos
- Instituto de Investigação do Medicamento, iMed.UL, Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisboa, Portugal
- Corresponding author – Tel – 351217946400, Fax - 351217946470
| |
Collapse
|
17
|
Andrade T, Von Pinho EVR, Von Pinho RG, Oliveira GE, Andrade V, Fernandes JS. Physiological quality and gene expression related to heat-resistant proteins at different stages of development of maize seeds. Genet Mol Res 2013; 12:3630-42. [PMID: 24085427 DOI: 10.4238/2013.september.13.7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We quantified and characterized the expression of heat-resistant proteins during seed development of maize lines with distinct levels of tolerance to high drying temperature. A corn field was planted for multiplication of seeds of different lines, two tolerant and two non-tolerant to high drying temperatures. Harvest of the seeds was carried out at various stages of development and they were then subjected to tests of moisture content, germination, first count of germination, accelerated aging, and cold test. The seeds were stored in a freezer for later analysis of expression of heat-resistant proteins by means of real-time PCR, electrophoresis, and spectrophotometry. We observed that heat-resistant proteins are expressed in a differential manner in seeds from different lines and at different stages of development. The expression of heat-resistant proteins was earlier in lines tolerant to high drying temperatures. Greater germination and vigor values was found for seeds collected at the last stage of development.
Collapse
Affiliation(s)
- T Andrade
- Departamento de Agricultura, Universidade Federal de Lavras, Lavras, MG, Brasil
| | | | | | | | | | | |
Collapse
|
18
|
Peredo HA, Andrade V, Donoso AS, Lee HJ, Puyó AM. Sodium molybdate prevents hypertension and vascular prostanoid imbalance in fructose-overloaded rats. ACTA ACUST UNITED AC 2013; 33:43-8. [PMID: 23906370 DOI: 10.1111/aap.12010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 05/07/2013] [Indexed: 12/25/2022]
Abstract
(1) Fructose (F) overload produces elevated blood pressure (BP), hyperglycaemia, hypertriglyceridemia and insulin resistance, resembling human metabolic syndrome. Previously, we found altered vascular prostanoid (PR) production in this model. (2) Sodium molybdate (Mo), as well as sodium tungstate, causes insulin-like effects and normalizes plasma glucose levels in streptozotocin-treated diabetic rats. We studied the effects of Mo on BP, metabolic parameters and release of PR from the mesenteric vascular bed (MVB) in F-overloaded rats. (3) Four groups of male Sprague-Dawley rats were analysed: Control, tap water to drink; F, F solution 10% W/V to drink; CMo, Mo 100 mg kg day(-1) and FMo, both treatments. After 9 weeks, the animals were killed and MVBs removed and the released PRs measured. (4) F increased BP, glycemia, triglyceridemia and insulinemia. Mo treatment prevented the increases in BP and glycemia, but did not modify triglyceridemia or insulinemia. In addition, Mo decreased BP in controls. (5) Prostaglandins (PG) F2 alpha and E2, PG 6-ketoF1 alpha and thromboxane (TX) B2 , as well as inactive metabolites of prostacyclin (PGI2 ) and TXA2 were detected. F decreased the production of vasodilator PRs PGI2 and PGE2 in MVB. Mo prevented these alterations and increased PGE2 in controls. Vasoconstrict or PRs PGF2 alpha and TXA2 release was not modified. (6) Mo treatment, beyond its known lowering effect on glycemia, prevents the reduction in the vascular release of vasodilator PR observed in this model. This could be one of the mechanisms by which Mo avoids the increase in BP caused by F overload in the rat.
Collapse
Affiliation(s)
- H A Peredo
- Cátedra de Anatomía Humana (macro y microscópica) and INFIBIOC, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires; CONICET, Junín 956, 1113, Buenos Aires, Argentina
| | | | | | | | | |
Collapse
|
19
|
Sakr R, Chandarlapaty S, Andrade V, Giri D, Muhsen S, Wooyul P, Morrow M, Rosen N, King T. Abstract P4-06-07: PI3K Mutations Are More Common in Low Grade DCIS. Cancer Res 2010. [DOI: 10.1158/0008-5472.sabcs10-p4-06-07] [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: 11/16/2022]
Abstract
Abstract
Background: DCIS is a non-obligate precursor to invasive breast cancer yet it remains difficult to predict which lesions will progress or over what time interval. Factors associated with a higher risk of progression include high histologic grade and HER2 amplification. HER2 signaling via the PI3K pathway is associated with accelerated invasiveness in laboratory models and mutations in the helical domain of PI3K have been associated with a worse prognosis in invasive cancer. We hypothesized that PI3K pathway mutations are associated with higher risk of progression in DCIS and therefore would be more common in high grade DCIS.
Methods: 195 cases of pure DCIS were identified from the MSKCC breast service database (1999-2003). All cases were reviewed by a single pathologist to assign histologic grade. Sections were obtained from archived formalin-fixed paraffin embedded (FFPE) blocks for manual microdissection to isolate pure DCIS lesions for DNA extraction. Multiplex array (Sequenom®) genotyping for PIK3CA was performed on prePCR amplified DNA. Comparisons were made between high and low grade DCIS using Fisher's exact test.
Results: Among 195 pure DCIS cases, 89 were classified as high grade and 106 as low grade. Sequenom® analysis was informative in all cases. PIK3CA mutations were identified in 4/89 (4%) cases of high grade DCIS and in 24/106 (23%) cases of low grade DCIS (p=0.000). All 4 mutations in high grade DCIS were located in the kinase domain, whereas in low grade DCIS, 9/24 (37%) mutations were in the kinase domain (H1047R) and 15/24 (67%) mutations were in the helical domain (E542K, E545K, N345K).
Conclusion: PI3K mutations were relatively uncommon in pure high grade DCIS as compared to low grade DCIS. PI3K mutations in low grade DCIS were observed in both the kinase and helical domain. These findings support the hypothesis that breast tumorigenesis differs by grade and PI3K mutations may be more prominent in low grade carcinogenesis. The significance of helical domain mutations in low grade lesions requires further investigation.
Citation Information: Cancer Res 2010;70(24 Suppl):Abstract nr P4-06-07.
Collapse
Affiliation(s)
- R Sakr
- Memorial Sloan-Kettering Cancer Center, New York
| | | | - V Andrade
- Memorial Sloan-Kettering Cancer Center, New York
| | - D Giri
- Memorial Sloan-Kettering Cancer Center, New York
| | - S Muhsen
- Memorial Sloan-Kettering Cancer Center, New York
| | - P Wooyul
- Memorial Sloan-Kettering Cancer Center, New York
| | - M Morrow
- Memorial Sloan-Kettering Cancer Center, New York
| | - N Rosen
- Memorial Sloan-Kettering Cancer Center, New York
| | - T. King
- Memorial Sloan-Kettering Cancer Center, New York
| |
Collapse
|
20
|
Salgado KCPC, Von Pinho EVR, Guimarães CT, Von Pinho RG, Ferreira CA, Andrade V. Mapping of quantitative trait locus associated with maize tolerance to high seed drying temperature. Genet Mol Res 2008; 7:1319-26. [PMID: 19065767 DOI: 10.4238/vol7-4gmr504] [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: 11/03/2022]
Abstract
quantitative trait locus (QTL) mapping and identification of traits of agronomic importance is important in the process of molecular marker-assisted selection in breeding programs. The molecular map of maize is well saturated and QTL and simple sequence repeat (SSR) markers have been identified, whereas few markers linked to seed quality traits are included. The present study aimed to identify QTL and the gene action and to quantify the effects of these regions in the phenotypic variation related to maize tolerance to high seed drying temperature. SSR markers and 129 segregating families of F2 plants of the cross of intolerant and tolerant lines were used in regression and composite interval mapping methods. Three maize QTL associated with tolerance to high seed drying temperature were identified and mapped to chromosomes 6 and 8, explaining 39% of the phenotypic variation of the trait with additive, dominance and overdominance gene action. These markers seem to be effectively associated with the evaluated trait, since all were mapped near genes whose expression products were associated with seed desiccation tolerance.
Collapse
Affiliation(s)
- K C P C Salgado
- Laboratório de Sementes, Departamento de Agricultura, Universidade Federal de Lavras, Lavras, MG, Brasil
| | | | | | | | | | | |
Collapse
|
21
|
Andrade V, Ignotti E. Secular trends of new leprosy cases diagnosed in Brazil during 1987-2006. Indian J Lepr 2008; 80:31-38. [PMID: 19295119] [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: 05/27/2023]
Abstract
OBJECTIVE To analyze trends in occurrence of new leprosy cases in Brazil in the light of changes in public health policy during the period 1987-2006. MATERIAL AND METHODS Study of secular trends in New case detection rate (NCDR), viz. for leprosy in Brazil between 1987 and 2006. A linear trend was used to analyze separately the detection rate during the two decades 1987-1996 and 1997-2006. The cut-off point was the year with the peak detection rate in 1997. To analyze the potential increase in accessibility to diagnosis and treatment, a comparison was made between the proportion of cases diagnosed within the health services and municipalities over a 20-year period, split into four 5-year intervals. RESULTS The variation of the NCDR between 1987 and 2006 more than doubled between 1987 and 1997, decreased from 1997 to 2000, increased up to 2003 and then dropped considerably between 2004 and 2006. The number of facilities providing health services for the 5-year periods showed a marked increase-more than doubling between the second and third and between the third and fourth periods. The number and therapeutic services are indications that Brazil is perhaps making considerable progress towards eliminating leprosy as a public health problem.
Collapse
Affiliation(s)
- V Andrade
- Department of Health of the State of Rio de Janeiro, Brazil
| | | |
Collapse
|
22
|
Lai YC, Andrade V. Catastrophic bifurcation from riddled to fractal basins. Phys Rev E Stat Nonlin Soft Matter Phys 2001; 64:056228. [PMID: 11736075 DOI: 10.1103/physreve.64.056228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2000] [Revised: 04/13/2001] [Indexed: 05/23/2023]
Abstract
Most existing works on riddling assume that the underlying dynamical system possesses an invariant subspace that usually results from a symmetry. In realistic applications of chaotic systems, however, there exists no perfect symmetry. The aim of this paper is to examine the consequences of symmetry-breaking on riddling. In particular, we consider smooth deterministic perturbations that destroy the existence of invariant subspace, and identify, as a symmetry-breaking parameter is increased from zero, two distinct bifurcations. In the first case, the chaotic attractor in the invariant subspace is transversely stable so that the basin is riddled. We find that a bifurcation from riddled to fractal basins can occur in the sense that an arbitrarily small amount of symmetry breaking can replace the riddled basin by fractal basins. We call this a catastrophe of riddling. In the second case, where the chaotic attractor in the invariant subspace is transversely unstable so that there is no riddling in the unperturbed system, the presence of a symmetry breaking, no matter how small, can immediately create fractal basins in the vicinity of the original invariant subspace. This is a smooth-fractal basin boundary metamorphosis. We analyze the dynamical mechanisms for both catastrophes of riddling and basin boundary metamorphoses, derive scaling laws to characterize the fractal basins induced by symmetry breaking, and provide numerical confirmations. The main implication of our results is that while riddling is robust against perturbations that preserve the system symmetry, riddled basins of chaotic attractors in the invariant subspace, on which most existing works are focused, are structurally unstable against symmetry-breaking perturbations.
Collapse
Affiliation(s)
- Y C Lai
- Department of Mathematics, Center for Systems Science and Engineering Research, Arizona State University, Tempe, Arizona 85287, USA
| | | |
Collapse
|
23
|
Andrade V, Sabroza PC, de Albuquerque MDF, Motta CDP. Monitoring the elimination of leprosy in Brazil. Int J Lepr Other Mycobact Dis 1998; 66:457-63. [PMID: 10347566] [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: 02/12/2023]
Abstract
A decreasing trend in the prevalence rate of leprosy was reached in Brazil only after the introduction of the World Health Organization multidrug therapy (WHO/MDT) program in 1990. This paper analyzes leprosy morbidity indicators and the prevalence rate, and their utilization in monitoring the progress of leprosy elimination in Brazil. Since these indicators are modified by changes in health service procedures, comparing prevalence rates from different endemic countries or current prevalence rates with old ones from the same endemic region needs careful attention. The current official prevalence rate of 6.72/10,000 inhabitants in Brazil could be considered high when compared with rates from other countries, but it is important to remember that defaulters and patients being treated with old regimens are kept on the active registers in Brazil, while in most other endemic countries they are not.
Collapse
Affiliation(s)
- V Andrade
- Ministry of Health, Brazilia, Brazil
| | | | | | | |
Collapse
|
24
|
Abstract
The purpose of this study was to analyse the contribution of the Extension Courses in the Intensive Care held at the Nursing School from USP, with the aim to: 1) Follow up nurses in their work at the ICU. 2) Evaluate the contribution offered by the course. The population was formed by 38 nurses, considering that 60.5% didn't work in the ICU anymore mainly because they assumed another function in the institution and had several private problems. Regarding the contribution offered by the course, the main evaluation was the acquirement of knowledge (91.7%). However, 74.2% of the nurses declared the course didn't contribute to the increase of their wage, what do not impair them from investing in their professional improvement.
Collapse
Affiliation(s)
- V Andrade
- Escola de Enfermagem da Universidade de São Paulo
| | | | | |
Collapse
|
25
|
Andrade V, Militao de Albuquerque MD, Chagastelles Sabroza P. The importance of operational factors for the interpretation of indicators in the Hansen's disease endemic in Brazil. Acta Leprol 1997; 10:131-139. [PMID: 9259884] [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: 05/22/2023]
Abstract
In Brazil, an increase has been recorded in recent years in the magnitude of detection coefficients for new cases of Hansen's disease, which is frequently interpreted as evidence of the endemic's expansion. The objective of this work is the determine the role of operational factors for interpreting the trend displayed by the morbidity coefficients for Hansen's disease from 1982 to 1995 in the country. We observed a strong correlation between the adjusted detection coefficients and the number of technicians trained (r = 0.80), a decrease in the proportion of new cases with disabilities at the time of diagnosis (r = 0.86), and a downward trend in tuberculoid forms (r = -0.70). Patient time on the active register is correlated negatively with MDT-WHO coverage (r = -0.95) and the percentage of patients discharged from treatment due to cure (r = -0.91). These results suggest that the increase in the potential for detection of new cases of Hansen's disease resulting from new strategies adopted by the program, i.e., mainly extensive training of health personnel, could be a coherent explanation for the increase in detection coefficients for new cases observed in Brazil in the last ten years.
Collapse
Affiliation(s)
- V Andrade
- Departamento de Epidemiologia SES/RJ-Rio de Janeiro, Brazil.
| | | | | |
Collapse
|
26
|
Abstract
Two age groups, 3 and 15 mo, were used to investigate whether age-associated changes in some parameters related to lipid peroxidation occur in the liver of male Wistar rats and to observe possible effects of dietary selenium supplementation (0.25 and 0.50 ppm) for 12 mo on the same parameters. At these experimental conditions, the most important observation was that peroxidation did not change by aging, at least until 15 mo of age. In addition, the activity of Se-dependent glutathione peroxidase (GSH-Px, EC 1.11.1.9) was higher in the liver of the older animals. It is suggested that the enzyme could have a role in the unchanged hepatic peroxidation observed in aged male rats. On the other hand, an effect of dietary selenium supplementation on those parameters was not observed, probably because the selenium levels were still at an adequate plateau.
Collapse
Affiliation(s)
- M C Santos
- Departamento de Química, Faculdade de Ciências de Lisboa, Portugal
| | | | | | | | | | | |
Collapse
|
27
|
Crespo AM, Lança MJ, Vasconcelos S, Andrade V, Rodrigues H, Santos MC. Effect of selenium supplementation on some blood biochemical parameters in male rats. Biol Trace Elem Res 1995; 47:343-7. [PMID: 7779568 DOI: 10.1007/bf02790136] [Citation(s) in RCA: 12] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The long-term effect of selenium supplementation on blood glutathione peroxidase (GSH-Px) activity and plasma TBARS' production (as an index of peroxidation) was evaluated in 15-mo-old male rats fed a diet supplemented with 0.25 or 0.50 ppm selenium, for 12 mo. A group of nonsupplemented age-matched rats was the control. In addition, triglycerides, phospholipids, total and free cholesterol, HDL-cholesterol, and HDL-phospholipids levels were measured in plasma. Plasma testosterone levels were also determined in order to control the aging process in these animals. The GSH-Px activity and the peroxidation level were unchanged in all the groups. However, concerning the lipid parameters, a decrease in triglycerides concentration was observed in both treated groups (p < 0.05). Therefore, in these experimental conditions, despite no observed changes in parameters related to lipid peroxidation, selenium seems to be involved with triglycerides metabolism, eventually improving the triglycerides status of aged animals.
Collapse
Affiliation(s)
- A M Crespo
- Departamento de Zoologia e Antropologia, Faculdade de Ciências de Lisboa, Portugal
| | | | | | | | | | | |
Collapse
|
28
|
Andrade SG, Andrade V, Brodskyn C, Magalhães JB, Netto MB. Immunological response of Swiss mice to infection with three different strains of Trypanosoma cruzi. Ann Trop Med Parasitol 1985; 79:397-407. [PMID: 3935064 DOI: 10.1080/00034983.1985.11811938] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The immunological response of Swiss mice to infection with three strains of Trypanosoma cruzi which differ in their morphobiological, antigenic and isoenzymic characters [Peruvian, 12 SF (São Felipe) and Colombian strains] was investigated. The three strains stimulated an elevation of the immunoglobulin fractions IgG2a, IgG2b and IgM during acute infection, as measured by radial immunodiffusion, and an early drop of IgG1 levels. There were low levels of specific antibodies and a negative cutaneous delayed hypersensitivity test to T. cruzi antigens. Cellular reaction of the spleen was evident, with proliferation of lymphocytes and the presence of blastic lymphoid cells in the red and white pulp, and hyperplasia of germinal centres of the lymphoid follicles. Those aspects were consistent with a depletion of the T-cell zone (periarteriolar lymphocyte sheath). Despite these common features, there were clear differences in the onset, intensity and evolution of the splenic cellular reaction and IgG serum levels and in the relationship between these levels and parasitaemia in the mice infected with the three strains of T. cruzi. A positive correlation was seen between high IgG levels and mortality, corresponding to intense exudative tissue lesions, showing that a raised immunoglobulin level was not associated with protection. It is worth observing that the 12 SF strain, which showed the lowest parasitaemic profile and mortality rate, stimulated the greatest elevation of IgG2b during acute infection; and also that IgG2a and IgG2b were the immunoglobulins which showed the greatest increases following infection by all three strains of T. cruzi.
Collapse
|
29
|
Andrade V, Barral-Netto M, Andrade SG, Magalhães JB. [Immunological aspects of infection of 6 inbred strains of mice by 3 different strains of Trypanosoma cruzi]. Mem Inst Oswaldo Cruz 1985; 80:203-11. [PMID: 3939148 DOI: 10.1590/s0074-02761985000200011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
We evaluated humoral and cellular immune responses in 6 inbred mouse strains (BALB/c, B-10, C3H, A/J, AKR and DBA) infected with 3 Trypanosoma cruzi strains (Peruvian, 21 SF and Colombian), which are the standards for the 3 strains Types of Andrade's classification. Negative delayed-type hipersensitivity reactions to parasite antigens were evidence of suppressed cell-mediated immunity. An early drop of IgG1 and rise of IgM levels were observed in almost all mouse strains infected by any T. cruzi strain. Elevation of IgG2a and/or IgG2b levels was higher in resistant mouse strains. Anti-T. cruzi antibody levels (Indirect immunofluorescence and ELISA) did not correlate with survival. Despite some differences among mouse strains there was a definition of an overall pattern of host response and the maintenance of biological standards which characterize the basic types of T. cruzi strains.
Collapse
|
30
|
Andrade V, Brodskyn C, Andrade SG. Correlation between isoenzyme patterns and biological behaviour of different strains of Trypanosoma cruzi. Trans R Soc Trop Med Hyg 1983; 77:796-9. [PMID: 6229910 DOI: 10.1016/0035-9203(83)90292-4] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Three strains of Trypanosoma cruzi, used previously as prototypes for a classification based on the host-parasite relationships, as well as several stocks isolated from different geographical areas in Brazil, were submitted to isoenzymic analysis. Their isoenzyme patterns revealed a clear correlation with the biological data. The patterns obtained with the enzymes PGM, GPI, ASAT and ALAT permitted discrimination between each of the described types. Only one type was found in each geographical area studied, indicating a possible relationship between regional patterns and clinical presentation of Chagas' disease.
Collapse
|
31
|
Andrade SG, Andrade V, Rocha Filho FD, Barral Netto MB. [Antigenic analysis of various strains of Trypanosoma cruzi]. Rev Inst Med Trop Sao Paulo 1981; 23:245-50. [PMID: 7048495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
|
32
|
Cunha E, Barros M, Leal D, Medeiros L, Andrade V. [The Manchester operation in the treatment of genital prolapse]. Rev Ginecol Obstet (Sao Paulo) 1965; 116:308-12. [PMID: 5897930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|