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Gaspar LM, Gonçalves CI, Saraiva C, Cortez L, Amaral C, Nobre E, Lemos MC. Low frequency of AIP mutations in patients with young-onset sporadic pituitary macroadenomas. J Endocrinol Invest 2023; 46:2299-2307. [PMID: 37149543 PMCID: PMC10558361 DOI: 10.1007/s40618-023-02083-7] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 03/28/2023] [Indexed: 05/08/2023]
Abstract
PURPOSE Mutations in the aryl hydrocarbon receptor interacting protein (AIP) gene cause familial isolated pituitary adenomas (FIPA). AIP mutations have also been found in patients with apparently sporadic pituitary adenomas, particularly in young patients with large adenomas. The aim of this study was to determine the frequency of AIP germline mutations in patients with young-onset sporadic pituitary macroadenomas. METHODS The AIP gene was sequenced in 218 Portuguese patients with sporadic pituitary macroadenomas diagnosed before the age of 40 years. RESULTS Heterozygous rare sequence variants in AIP were identified in 18 (8.3%) patients. However, only four (1.8%) patients had pathogenic or likely pathogenic variants. These consisted of two already known mutations (p.Arg81* and p.Leu115Trpfs*41) and two novel mutations (p.Glu246*, p.Ser53Thrfs*36). All four patients had GH-secreting adenomas diagnosed between the ages of 14 and 25 years. The frequency of AIP pathogenic or likely pathogenic variants in patients under the age of 30 and 18 years was 3.4% and 5.0%, respectively. CONCLUSION The frequency of AIP mutations in this cohort was lower than in other studies. Previous reports may have overestimated the contribution of AIP mutations due to the inclusion of genetic variants of uncertain significance. The identification of novel AIP mutations expands the known spectrum of genetic causes of pituitary adenomas and may help understand the role of AIP mutations in the molecular mechanisms underlying pituitary tumorigenesis.
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Affiliation(s)
- L M Gaspar
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, 6200-506, Covilhã, Portugal
| | - C I Gonçalves
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, 6200-506, Covilhã, Portugal
| | - C Saraiva
- Serviço de Endocrinologia, Hospital de Egas Moniz, Centro Hospitalar Lisboa Ocidental, Lisbon, Portugal
| | - L Cortez
- Serviço de Endocrinologia, Hospital de Curry Cabral, Centro Hospitalar Universitário Lisboa Central, Lisbon, Portugal
| | - C Amaral
- Serviço de Endocrinologia, Hospital de Santo António, Centro Hospitalar Universitário do Porto, Porto, Portugal
| | - E Nobre
- Serviço de Endocrinologia, Diabetes e Metabolismo, Hospital de Santa Maria, Centro Hospitalar Universitário Lisboa Norte, Lisbon, Portugal
| | - M C Lemos
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, 6200-506, Covilhã, Portugal.
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Amaral C, Gomez F, Moreira M, Silva T, Vicente R. Thermal Performance of Multifunctional Facade Solution Containing Phase Change Materials: Experimental and Numerical Analysis. Polymers (Basel) 2023; 15:2971. [PMID: 37447616 DOI: 10.3390/polym15132971] [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: 04/26/2023] [Revised: 06/24/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023] Open
Abstract
This work focuses on the development and analysis of a new multifunctional facade panel incorporating PCM in foam layers. The thermal performance was analysed recurring to a hotbox heat flux meter method to determine the thermal transmittance (U-value) and the main findings are presented. The experimental setup was based on the steady-state approach, using climatic chambers, assuring a stable thermal environment. Even small fractions of PCM achieved a small reduction in thermal amplitude. Numerical simulations using Ansys Fluent were developed to evaluate the performance of PCM use over a wide range of temperature boundary conditions and operating modes. These numerical models were calibrated and validated using the results of experimental tests, achieving a correlation factor of 0.9674, and, thus, accurately representing a real-world scenario. The decrement factor (f) was used to analyse the data. It was identified that the efficiency of the panel and size of the optimum region increased with the PCM fraction growth. The results showed the significant potential of the multi-layered panel, with the thermal regulator effect of the PCM incorporated, on indoor space temperature so as to reach good thermal comfort levels. The efficiency of the panel can be improved by nearly 50% depending on the input boundary conditions. The efficiency of the panel and the size of the optimum region increase with growth in the PCM fraction. The simulated behaviour was at an optimum when the input mean temperature was 20 °C for a room temperature of between 18-20 °C.
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Affiliation(s)
- C Amaral
- TEMA-Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
- LASI-Intelligent Systems Associate Laboratory, 4800-058 Guimarães, Portugal
| | - F Gomez
- AMS-Advanced Material Simulation, C/Asturias n°3, 48015 Bilbao, Spain
| | - M Moreira
- TEMA-Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
- LASI-Intelligent Systems Associate Laboratory, 4800-058 Guimarães, Portugal
| | - T Silva
- TEMA-Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
- LASI-Intelligent Systems Associate Laboratory, 4800-058 Guimarães, Portugal
| | - R Vicente
- RISCO-Research Center for Risks and Sustainability in Construction, Civil Engineering Department, University of Aveiro, 3810-193 Aveiro, Portugal
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Michelon I, Silveira Pinheiro I, Ayres Obelar M, Teixeira A, Amaral C, Nedel F. 13P Cervical cancer screening in a basic health unit in South of Brazil: Impact of the COVID-19 pandemic. ESMO Open 2023. [DOI: 10.1016/j.esmoop.2023.100868] [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: 02/27/2023] Open
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Monteiro SS, Santos TS, Pereira CA, Duarte DB, Neto H, Gomes A, Loureiro L, Martins J, Silva F, Martins LS, Ferreira L, Amaral C, Freitas C, Carvalho AC, Carvalho R, Dores J. The influence of simultaneous pancreas-kidney transplantation on the evolution of diabetic foot lesions and peripheral arterial disease. J Endocrinol Invest 2023:10.1007/s40618-023-02009-3. [PMID: 36645638 DOI: 10.1007/s40618-023-02009-3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 01/05/2023] [Indexed: 01/17/2023]
Abstract
PURPOSE Simultaneous pancreas-kidney transplantation (SPKT) remains the best treatment option in patients with type 1 diabetes and chronic kidney failure. There are only a few studies addressing the potential ischemic deterioration of peripheral arterial disease (PAD) due to blood diverting from the iliac artery to the kidney graft. We aimed to evaluate diabetic foot lesions and PAD evolution in SPKT recipients and investigate if they are more frequent in ipsilateral lower limb of kidney graft. METHODS We developed a retrospective cohort, including patients submitted to SPKT in our tertiary center, between 2000 and 2017. Diabetic foot lesions and PAD frequencies were compared in the period before and after transplantation. RESULTS Two hundred and eleven patients were included, 50.2% (n = 106) female, with a median age at transplantation of 35 years (IQR 9). After a median follow-up period of 10 years (IQR 7), patient, kidney, and pancreatic graft survival were 90.5% (n = 191), 83.4% (n = 176), and 74.9% (n = 158), respectively. Before transplant, 2.8% (n = 6) had PAD and 5.3% (n = 11) had history of foot lesions. In post-transplant period, 17.1% (n = 36) patients presented PAD and 25.6% (n = 54) developed diabetic foot ulcers, 47.6% (n = 35) of which in the ipsilateral and 53.3% (n = 40) in the contralateral lower limb of the kidney graft (p = 0.48). Nine patients (4.3%) underwent major lower limb amputation, 3 (30%) ipsilateral and 7 (70%) contralateral to the kidney graft (p = 0.29). CONCLUSIONS Diabetic foot lesions were not more frequent in the ipsilateral lower limb of the kidney graft, therefore downgrading the 'steal syndrome' role in these patients.
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Affiliation(s)
- S S Monteiro
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal.
| | - T S Santos
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - C A Pereira
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - D B Duarte
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - H Neto
- Diabetic Foot Unit, Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - A Gomes
- Diabetic Foot Unit, Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - L Loureiro
- Diabetic Foot Unit, Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - J Martins
- Diabetic Foot Unit, Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - F Silva
- Division of Nephrology and Transplant, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - L S Martins
- Division of Nephrology and Transplant, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - L Ferreira
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
- Diabetic Foot Unit, Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - C Amaral
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
- Diabetic Foot Unit, Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - C Freitas
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
- Diabetic Foot Unit, Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - A C Carvalho
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
- Diabetic Foot Unit, Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - R Carvalho
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
- Diabetic Foot Unit, Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
| | - J Dores
- Division of Endocrinology, Diabetes and Metabolism, Centro Hospitalar Universitário Do Porto, Largo Professor Abel Salazar, 4099-001, Porto, Portugal
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Gaspar-Cordeiro A, Afonso G, Amaral C, da Silva SM, Pimentel C. Zap1 is required for Candida glabrata response to fluconazole. FEMS Yeast Res 2022; 22:6510815. [PMID: 35040997 DOI: 10.1093/femsyr/foab068] [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: 08/18/2021] [Accepted: 01/13/2022] [Indexed: 11/13/2022] Open
Abstract
The increasing prevalence of fluconazole-resistant clinical isolates of Candida spp. strongly hinders the widespread use of the drug. To tackle this problem, great efforts have been made to fully understand the fungal response to fluconazole. In this work, we show that the role of Zap1 in Candida glabrata goes beyond regulating yeast adaptation to zinc deficiency. In line with our previous observation that deletion of ZAP1 makes yeast cells more sensitive to fluconazole, we found that the mutant CgΔzap1 accumulates higher levels of the drug, which correlates well with its lower levels of ergosterol. Surprisingly, Zap1 is a negative regulator of the drug efflux transporter gene CDR1 and of its regulator, PDR1. The apparent paradox of drug accumulation in cells where genes encoding transporters relevant for drug extrusion are being overexpressed led us to postulate that their activity could be impaired. In agreement, Zap1-depleted cells present, in addition to decreased ergosterol levels, an altered composition of membrane phospholipids, which together should impact membrane function and impair the detoxification of fluconazole. Overall, our study brings to light Zap1 as an important hub in Candida glabrata response to fluconazole.
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Affiliation(s)
- A Gaspar-Cordeiro
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. República, 2780-157 Oeiras, Portugal
| | - G Afonso
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. República, 2780-157 Oeiras, Portugal
| | - C Amaral
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. República, 2780-157 Oeiras, Portugal
| | - S M da Silva
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. República, 2780-157 Oeiras, Portugal
| | - C Pimentel
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. República, 2780-157 Oeiras, Portugal
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Bellissimo CA, Delfinis LJ, Hughes MC, Turnbull PC, Gandhi S, DiBenedetto SN, Rahman F, Tadi P, Amaral C, Dehghani A, Quadrilatero J, Schlattner U, Perry CGR. Correction: Muscle health in a mouse model of Duchenne muscular dystrophy can be partially improved by restoring mitochondrial creatine metabolism. Appl Physiol Nutr Metab 2020; 46:190. [PMID: 33356880 DOI: 10.1139/apnm-2020-1066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- C A Bellissimo
- School of Kinesiology & Health Science, Muscle Health Research Centre, York University, Toronto, ON M3J 1P3, Canada
| | - L J Delfinis
- School of Kinesiology & Health Science, Muscle Health Research Centre, York University, Toronto, ON M3J 1P3, Canada
| | - M C Hughes
- School of Kinesiology & Health Science, Muscle Health Research Centre, York University, Toronto, ON M3J 1P3, Canada
| | - P C Turnbull
- School of Kinesiology & Health Science, Muscle Health Research Centre, York University, Toronto, ON M3J 1P3, Canada
| | - S Gandhi
- School of Kinesiology & Health Science, Muscle Health Research Centre, York University, Toronto, ON M3J 1P3, Canada
| | - S N DiBenedetto
- School of Kinesiology & Health Science, Muscle Health Research Centre, York University, Toronto, ON M3J 1P3, Canada
| | - F Rahman
- Faculty of Applied Health Sciences, Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - P Tadi
- School of Kinesiology & Health Science, Muscle Health Research Centre, York University, Toronto, ON M3J 1P3, Canada
| | - C Amaral
- School of Kinesiology & Health Science, Muscle Health Research Centre, York University, Toronto, ON M3J 1P3, Canada
| | - A Dehghani
- School of Kinesiology & Health Science, Muscle Health Research Centre, York University, Toronto, ON M3J 1P3, Canada
| | - J Quadrilatero
- Faculty of Applied Health Sciences, Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - U Schlattner
- Laboratory of Fundamental and Applied Bioenergetics, and SFR Environmental and Systems Biology, University of Grenoble Alpes, Grenoble, France
| | - C G R Perry
- School of Kinesiology & Health Science, Muscle Health Research Centre, York University, Toronto, ON M3J 1P3, Canada
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Macedo F, Monteiro J, Félix Soares R, Monteiro A, Cunha Pereira T, Baptista S, Amaral C, Veloso L, Gois C, Bonito N, Sousa G. 1844P Effectiveness of normal saline solution in maintaining the permeability of totally implantable venous catheters in adult cancer patients: Experience of an oncologic center. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Santos AP, Vinagre J, Soares P, Claro I, Sanches AC, Gomes L, Fernandes I, Catarino AL, Preto J, Pereira BD, Marques AP, Rodrigues F, Amaral C, Rocha G, Mellidez JC, Simões H, Lopes JM, Bugalho MJ. Erratum to "Gastroenteropancreatic Neuroendocrine Neoplasia Characterization in Portugal: Results from the NETs Study Group of the Portuguese Society of Endocrinology, Diabetes and Metabolism". Int J Endocrinol 2020; 2020:9184324. [PMID: 32655634 PMCID: PMC7320291 DOI: 10.1155/2020/9184324] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 04/21/2020] [Indexed: 12/05/2022] Open
Abstract
[This corrects the article DOI: 10.1155/2019/4518742.].
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Affiliation(s)
- A. P. Santos
- Instituto Português de Oncologia do Porto, Francisco Gentil (IPOPFG), 4200-072 Porto, Portugal
| | - J. Vinagre
- Instituto de Investigação e Inovação em Saúde (i3S), 4200-135 Porto, Portugal
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), 4200-465 Porto, Portugal
- Faculdade de Medicina da Universidade do Porto (FMUP), 4200-319 Porto, Portugal
| | - P. Soares
- Instituto de Investigação e Inovação em Saúde (i3S), 4200-135 Porto, Portugal
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), 4200-465 Porto, Portugal
- Centro Hospitalar de São João (CHSJ), 4200-319 Porto, Portugal
| | - I. Claro
- Instituto Português de Oncologia de Lisboa, Francisco Gentil (IPOLFG), 1099-023 Lisboa, Portugal
| | - A. C. Sanches
- Instituto Português de Oncologia do Porto, Francisco Gentil (IPOPFG), 4200-072 Porto, Portugal
| | - L. Gomes
- Centro Hospitalar e Universitário de Coimbra (CHUC), 3000-075 Coimbra, Portugal
| | - I. Fernandes
- Centro Hospitalar Lisboa Norte, EPE (CHLN), 1649-035 Lisboa, Portugal
- Centro Académico de Medicina de Lisboa (CAML), 1649-035 Lisboa, Portugal
| | | | - J. Preto
- Faculdade de Medicina da Universidade do Porto (FMUP), 4200-319 Porto, Portugal
- Centro Hospitalar de São João (CHSJ), 4200-319 Porto, Portugal
| | - B. D. Pereira
- Hospital Garcia de Orta, EPE, 2801-951 Almada, Portugal
| | - A. P. Marques
- Unidade Local de Saúde de Matosinhos, 4464-513 Senhora da Hora, Portugal
| | - F. Rodrigues
- Instituto Português de Oncologia de Coimbra, Francisco Gentil (IPOCFG), 3000-075 Coimbra, Portugal
| | - C. Amaral
- Centro Hospitalar do Porto-Hospital Santo António, 4099-001 Porto, Portugal
| | - G. Rocha
- Centro Hospitalar Gaia/Espinho (CHGE), 4434-502 Vila Nova de Gaia, Portugal
| | - J. C. Mellidez
- Centro Hospitalar do Baixo Vouga (CHBV), 3810-501 Aveiro, Portugal
| | - H. Simões
- Centro Hospitalar de Lisboa Ocidental (CHLO), 1349-019 Lisboa, Portugal
| | - J. M. Lopes
- Instituto de Investigação e Inovação em Saúde (i3S), 4200-135 Porto, Portugal
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), 4200-465 Porto, Portugal
- Faculdade de Medicina da Universidade do Porto (FMUP), 4200-319 Porto, Portugal
- Centro Hospitalar de São João (CHSJ), 4200-319 Porto, Portugal
| | - M. J. Bugalho
- Centro Hospitalar Lisboa Norte, EPE (CHLN), 1649-035 Lisboa, Portugal
- Centro Académico de Medicina de Lisboa (CAML), 1649-035 Lisboa, Portugal
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Amaral C, Loiola S, Silva D, Carvalho E. Molecular identification and genetic divergence of new-world Callithrichinae marmosets based on the mitochondrial COI gene. Forensic Science International: Genetics Supplement Series 2019. [DOI: 10.1016/j.fsigss.2019.09.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Santos AP, Vinagre J, Soares P, Claro I, Sanches AC, Gomes L, Fernandes I, Catarino AL, Preto J, Pereira BD, Marques AP, Rodrigues F, Amaral C, Rocha G, Mellidez JC, Simões H, Lopes JM, Bugalho MJ. Gastroenteropancreatic Neuroendocrine Neoplasia Characterization in Portugal: Results from the NETs Study Group of the Portuguese Society of Endocrinology, Diabetes and Metabolism. Int J Endocrinol 2019; 2019:4518742. [PMID: 31467527 PMCID: PMC6701412 DOI: 10.1155/2019/4518742] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 01/21/2019] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND The incidence of gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) has been increasing in the last five decades, but there is no large-scale data regarding these tumours in Portugal. We conducted a cross-sectional, multicentric study in main Portuguese centers to evaluate the clinical, pathological, and therapeutic profile of GEP-NENs. METHODS From November, 2012, to July, 2014, data from 293 patients diagnosed with GEP-NENs from 15 centers in Portugal was collected and registered in an online electronic platform. RESULTS Median age at diagnosis was 56.5 (range: 15-87) years with a preponderance of females (54.6%). The most frequent primary sites were the pancreas (31.1%), jejunum-ileum (24.2%), stomach (13.7%), and rectum (8.5%). Data regarding hormonal status was not available in most patients (82.3%). Stratified by the tumour grade (WHO 2010 classification), we observed 64.0% of NET G1, 24.7% of NET G2, and 11.3% of NEC. Poorly differentiated tumours occurred mainly in older patients (p = 0.017), were larger (p < 0.001), and presented more vascular (p = 0.004) and lymphatic (p = 0.001) invasion. At the time of diagnosis, 44.4% of GEP-NENs presented metastatic disease. Surgery (79.6%) and somatostatin analogues (30.7%) were the most frequently used therapies of GEP-NENs with reported grading. CONCLUSION In general, Portuguese patients with GEP-NENs presented similar characteristics to other populations described in the literature. This cross-sectional study represents the first step to establish a national database of GEP-NENs that may aid in understanding the clinical and epidemiological features of these tumours in Portugal.
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Affiliation(s)
- A. P. Santos
- Instituto Português de Oncologia do Porto, Francisco Gentil (IPOPFG), 4200-162 Porto, Portugal
| | - J. Vinagre
- Instituto de Investigação e Inovação em Saúde (i3S), 4200-135 Porto, Portugal
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), 4200-465 Porto, Portugal
- Faculdade de Medicina da Universidade do Porto (FMUP), 4200-319 Porto, Portugal
| | - P. Soares
- Instituto de Investigação e Inovação em Saúde (i3S), 4200-135 Porto, Portugal
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), 4200-465 Porto, Portugal
- Centro Hospitalar de São João (CHSJ), 4200-319 Porto, Portugal
| | - I. Claro
- Centro Hospitalar de Lisboa Ocidental (CHLO), 1349-019 Lisboa, Portugal
| | - A. C. Sanches
- Instituto Português de Oncologia do Porto, Francisco Gentil (IPOPFG), 4200-162 Porto, Portugal
| | - L. Gomes
- Centro Hospitalar e Universitário de Coimbra (CHUC), 3000-075 Coimbra, Portugal
| | - I. Fernandes
- Centro Hospitalar Lisboa Norte, EPE (CHLN), 1649-035 Lisboa, Portugal
- Centro Académico de Medicina de Lisboa (CAML), 1649-035 Lisboa, Portugal
| | | | - J. Preto
- Faculdade de Medicina da Universidade do Porto (FMUP), 4200-319 Porto, Portugal
- Centro Hospitalar de São João (CHSJ), 4200-319 Porto, Portugal
| | - B. D. Pereira
- Hospital Garcia de Orta, EPE, 2801-951 Almada, Portugal
| | - A. P. Marques
- Unidade Local de Saúde de Matosinhos, 4464-513 Senhora da Hora, Portugal
| | - F. Rodrigues
- Instituto Português de Oncologia de Coimbra, Francisco Gentil (IPOCFG), 3000-075 Coimbra, Portugal
| | - C. Amaral
- Centro Hospitalar do Porto-Hospital Santo António, 4099-001 Porto, Portugal
| | - G. Rocha
- Centro Hospitalar Gaia/Espinho (CHGE), 4434-502 Vila Nova de Gaia, Portugal
| | - J. C. Mellidez
- Centro Hospitalar do Baixo Vouga (CHBV), 3810-501 Aveiro, Portugal
| | - H. Simões
- Centro Hospitalar de Lisboa Ocidental (CHLO), 1349-019 Lisboa, Portugal
| | - J. M. Lopes
- Instituto de Investigação e Inovação em Saúde (i3S), 4200-135 Porto, Portugal
- Instituto de Patologia e Imunologia Molecular da Universidade do Porto (IPATIMUP), 4200-465 Porto, Portugal
- Faculdade de Medicina da Universidade do Porto (FMUP), 4200-319 Porto, Portugal
- Centro Hospitalar de São João (CHSJ), 4200-319 Porto, Portugal
| | - M. J. Bugalho
- Centro Hospitalar Lisboa Norte, EPE (CHLN), 1649-035 Lisboa, Portugal
- Centro Académico de Medicina de Lisboa (CAML), 1649-035 Lisboa, Portugal
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11
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Affiliation(s)
- P. Aguiar
- Federal University Hospital of Rio Grande, Rio Grande do Sul Brazil
| | - C. Amaral
- Hyperbaric Oxygen Therapy Clinic of Rio Grande
| | - A. Rodrigues
- Pharmacy Technician, Federal University Hospital of Rio Grande, Rio Grande do Sul Brazil
| | - A.H. de Souza
- Lecturer, Universidade Luterana do Brasil, Rio Grande, Rio Grande do Sul, Brazil
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Almada M, Amaral C, Diniz-da-Costa M, Correia-da-Silva G, Teixeira NA, Fonseca BM. The endocannabinoid anandamide impairs in vitro decidualization of human cells. Reproduction 2017; 152:351-61. [PMID: 27568210 DOI: 10.1530/rep-16-0364] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 08/01/2016] [Indexed: 12/17/2022]
Abstract
Endocannabinoids (eCBs) are endogenous mediators that along with the cannabinoid receptors (CB1 and CB2), a membrane transporter and metabolic enzymes form the endocannabinoid system (ECS). Several eCBs have been discovered with emphasis on anandamide (AEA). They are involved in several biological processes such as energy balance, immune response and reproduction. Decidualization occurs during the secretory phase of human menstrual cycle, which involves proliferation and differentiation of endometrial stromal cells into decidual cells and is crucial for the establishment and progression of pregnancy. In this study, a telomerase-immortalized human endometrial stromal cell line (St-T1b) and non-differentiated primary cultures of human decidual fibroblasts from term placenta were used to characterize the ECS using immunoblotting and qRT-PCR techniques. It was shown that St-T1b cells express CB1, but not CB2, and that both receptors are expressed in HdF cells. Furthermore, the expression of fatty acid amide hydrolase (FAAH), the main degrading enzyme of AEA, increased during stromal cell differentiation. AEA inhibited cell proliferation, through deregulation of cell cycle progression and induced polyploidy. Moreover, through CB1 binding receptor, AEA also impaired cell differentiation. Therefore, AEA is proposed as a modulator of human decidualization. Our findings may provide wider implications, as deregulated levels of AEA, due to Cannabis sativa consumption or altered expression of the metabolic enzymes, may negatively regulate human endometrial stromal cell decidualization with an impact on human (in)fertility.Free Portuguese abstract: A Portuguese translation of this abstract is freely available at http://www.reproduction-online.org/content/152/4/351/suppl/DC1.
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Affiliation(s)
- M Almada
- UCIBIO@REQUIMTELaboratório de Bioquímica, Departamento Ciências Biológicas, Faculdade de Farmácia da Universidade do Porto, Porto, Portugal
| | - C Amaral
- UCIBIO@REQUIMTELaboratório de Bioquímica, Departamento Ciências Biológicas, Faculdade de Farmácia da Universidade do Porto, Porto, Portugal
| | - M Diniz-da-Costa
- UCIBIO@REQUIMTELaboratório de Bioquímica, Departamento Ciências Biológicas, Faculdade de Farmácia da Universidade do Porto, Porto, Portugal
| | - G Correia-da-Silva
- UCIBIO@REQUIMTELaboratório de Bioquímica, Departamento Ciências Biológicas, Faculdade de Farmácia da Universidade do Porto, Porto, Portugal
| | - N A Teixeira
- UCIBIO@REQUIMTELaboratório de Bioquímica, Departamento Ciências Biológicas, Faculdade de Farmácia da Universidade do Porto, Porto, Portugal
| | - B M Fonseca
- UCIBIO@REQUIMTELaboratório de Bioquímica, Departamento Ciências Biológicas, Faculdade de Farmácia da Universidade do Porto, Porto, Portugal
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13
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Almeida C, Augusto T, Correia-da-Silva G, Teixeira N, Amaral C. The effects of cannabinoids in exemestane-resistant breast cancer cells: PS181. Porto Biomed J 2017; 2:221-222. [PMID: 32258721 DOI: 10.1016/j.pbj.2017.07.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- C Almeida
- Faculdade de Ciências, Universidade do Porto, Portugal
- Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Portugal
- Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Portugal
| | - T Augusto
- Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Portugal
| | - G Correia-da-Silva
- Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Portugal
- UCIBIO, REQUIMTE, Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto
| | - N Teixeira
- UCIBIO, REQUIMTE, Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto
| | - C Amaral
- UCIBIO, REQUIMTE, Laboratório de Bioquímica, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto
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Amaral C, Augusto T, Roleira F, Tavares-Da-Silva E, Correia-Da-Silva G, Teixeira N. Estrogen-dependent breast cancer: The importance of androgen receptor in exemestane treatment. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx361.014] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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15
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Rocha J, Aires A, Mendes F, Pivoto F, Amaral C, Torbitz V, Moresco R, Gonçalves M, Flores E, Sousa R, Ortolani E, Rocha R, Leal M. Efeito metafilático do zinco injetável sobre parâmetros metabólicos e oxidativos de ovelhas no pós-parto imediato. ARQ BRAS MED VET ZOO 2017. [DOI: 10.1590/1678-4162-9311] [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] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
| | - A.R. Aires
- Universidade do Oeste de Santa Catarina, Brazil
| | | | | | - C. Amaral
- Universidade Federal de Santa Maria, Brazil
| | | | - R. Moresco
- Universidade Federal de Santa Maria, Brazil
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Almada M, Fonseca BM, Amaral C, Diniz-da-Costa M, Correia-da-Silva G, Teixeira N. Anandamide oxidative metabolism-induced endoplasmic reticulum stress and apoptosis. Apoptosis 2017; 22:816-826. [DOI: 10.1007/s10495-017-1356-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Amaral C, Augusto T, Tavares-da-Silva E, Roleira F, Correia-da-Siva G, Teixeira N. Unveiling the mechanisms of exemestane-acquired resistance: The role of autophagy and PI3K pathway. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61502-2] [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: 10/21/2022]
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Pires K, Dornas R, Nascimento O, Pupe C, Amaral C, Nogueira C, Vianna F. Inflammatory radiculomyelopathy associated with sapho syndrome. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.09.122] [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: 10/22/2022]
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Amaral C, Pupe C, Dornas R, Vianna F, Lebeis K, Nogueira C, Davidovich E, Coutinho B, Nascimento O. Neuropathic pain treatment and quality of life: results in leprosy patients. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.09.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Velho S, Amaral C, Rocha C, Oliveira E, Ferreira I, Abecassis M. MON-LB024: Obesity and Overweight After Allogeneic Hematopoietic Stem Cell Transplantation (HSCT-ALO) in Adult Patients. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30788-3] [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: 10/23/2022]
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21
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Perroni A, Amaral C, Kaizer M, Boscato N, Moraes R. Shade of resin-based luting agents: Impact on final porcelain color. Dent Mater 2015. [DOI: 10.1016/j.dental.2015.08.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Caleffi M, Amaral C, Zignani J, Graudenz M, Duarte FD. P5-09-01: Breast Cancer Annual Screening Program Núcleo Mama Porto Alegre (NMPOA): Imaging Results after Seven Years. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p5-09-01] [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
Introduction: The NMPOA cohort started in 2004 with the purpose of testing a breast screening model for underserved women in limited resource countries. In the city of Porto Alegre (South Brazil with 1.5 million population), breast cancer incidence rate is 127/100.000 (Brazilian NCI,2010) with increasing mortality due to 45% of Stage III and IV and no public health care early detection program, it was mandatory to test the feasibility of an organized screening program for women with very low income and level of education (64% under 6 years of schooling). In this scenario, there was always a concern of over diagnosis that will increase costs (more biopsies and surgeries) and under diagnosis by the radiologists involved in the program. We present here the results of all breast biopsies performed in this period, and its correlation with the attributed BI-RADS classification in order to optimize care and costs. Also, this study has a long term proposal and other results have been published concerned to the baseline profile of the population (Cancer Epidemiol Biomarkers Prev. 2010 Oct;19(10):2673–9. Epub 2010 Aug 17).
Methods:Since April 2004, 5592 women from 40 to 69 years were enrolled in the program and underwent to clinical breast exam and annual mammography screening at NMPOA. Initially, lesions were classified as B1, B2 or B0. After complementary views or exams, B0 was classified as B3, B4 (A, B or C) or B5. B4 and B5 were considered positive tests and immediately submitted to biopsy (open surgical or ultrasound guided core biopsy). B3 was followed according to recommended in BI-RADS fourth edition, and subsequently classified as benign (annual follow up) or suspicious findings (biopsy performed). The evaluation included histological analysis of breast biopsy specimens by two independent pathologists. Predictive positive value (PPV), predictive negative value (PNV) and accuracy (Acc) were calculated.
Results: A total of 259 breast lesions were initially classified as BI-RADS 0 (recall rate of 2.8%), and further classification of these was: 166 B3 (64.1%), 60 B4 (23.2%) and 33 B5 (12.7%). Thirty seven B3 (14.3%) were considered suspicious after 6 months and submitted to biopsy. Correlation results of the 130 biopsies performed are summarized on [Table1]. PPV of 63.4% (52.8%-73.1%), PNV of 97.3% (85.8%-99.9%) and an Acc of 73.1% were observed. In this sample, 71.7% of BC were ductal invasive carcinoma, 11.7% ductal carcinoma in situ, 5% lobular invasive carcinoma and 11.6% were other types of neoplasia.
Conclusion: Recall rate is in accordance with the medical audit benchmarks recommended of less than 10% published in BI-RADS fourth edition. NMPOA is model for limited resource countries in breast cancer imaging diagnosis. The radiologists involved in the program are classifying breast lesions in accordance with the established parameters, with a high accuracy in diagnosis. Even though we are dealing with a poorly educated cohort not used to any form of screening, our adherence is 57% in 12 months and 71% in 24 months.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P5-09-01.
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Affiliation(s)
- M Caleffi
- 1Hospital Moinhos de Vento, Porto Alegre, Rio Grande do Sul, Brazil
| | - C Amaral
- 1Hospital Moinhos de Vento, Porto Alegre, Rio Grande do Sul, Brazil
| | - J Zignani
- 1Hospital Moinhos de Vento, Porto Alegre, Rio Grande do Sul, Brazil
| | - M Graudenz
- 1Hospital Moinhos de Vento, Porto Alegre, Rio Grande do Sul, Brazil
| | - Filho D Duarte
- 1Hospital Moinhos de Vento, Porto Alegre, Rio Grande do Sul, Brazil
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Matafome P, Louro T, Rodrigues L, Crisóstomo J, Nunes E, Amaral C, Monteiro P, Cipriano A, Seiça R. Metformin and atorvastatin combination further protect the liver in type 2 diabetes with hyperlipidaemia. Diabetes Metab Res Rev 2011; 27:54-62. [PMID: 21218508 DOI: 10.1002/dmrr.1157] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [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: 12/15/2022]
Abstract
BACKGROUND non-alcoholic fatty liver disease (NAFLD) and type 2 diabetes are associated with dyslipidaemia, inflammation and oxidative stress. However, the pathophysiology of NAFLD in type 2 diabetes with hyperlipidaemia is not fully known, as well as the utility of the commonly prescribed anti-diabetic and lipid-lowering drugs in ameliorating liver injury markers. METHODS hepatic complications of type 2 diabetes with hyperlipidaemia and the effects of atorvastatin and metformin, isolated and in association, in systemic and hepatic inflammatory and oxidative stress markers were tested using genetic type 2 diabetic Goto-Kakizaki rats fed with a high-fat diet. RESULTS the high-fat diet aggravated the overall metabolic state and the hepatic markers of injury. All treatments decreased fasting glycaemia, insulin resistance and free fatty acid levels. Combined treatment further decreased C-reactive protein (CRP), adiponectin, liver tumour necrosis factor-α (TNF-α) and interleukin-6 (IL-6), systemic and hepatic oxidative stress and portal inflammation. CONCLUSIONS our data provides evidence of a greater benefit with a combination of atorvastatin and metformin in improving liver injury in type 2 diabetes with hyperlipidaemia.
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Affiliation(s)
- P Matafome
- Laboratory of Physiology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal; Center of Ophthalmology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal.
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24
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Amaral C, Gallardo E, Rodrigues R, Pinto Leite R, Quelhas D, Tomaz C, Cardoso M. Quantitative analysis of five sterols in amniotic fluid by GC–MS: Application to the diagnosis of cholesterol biosynthesis defects. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:2130-6. [DOI: 10.1016/j.jchromb.2010.06.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2010] [Revised: 05/31/2010] [Accepted: 06/09/2010] [Indexed: 10/19/2022]
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25
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Santos R, Cardoso S, Silva S, Correia S, Carvalho C, Crisóstomo J, Rodrigues L, Amaral C, Louro T, Matafome P, Santos M, Proença T, Duarte A, Seiça R, Moreira P. Food Deprivation Promotes Oxidative Imbalance in Rat Brain. J Food Sci 2009; 74:H8-H14. [DOI: 10.1111/j.1750-3841.2008.00982.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Matafome P, Nunes E, Louro T, Amaral C, Crisóstomo J, Rodrigues L, Moedas AR, Monteiro P, Cipriano A, Seiça R. A role for atorvastatin and insulin combination in protecting from liver injury in a model of type 2 diabetes with hyperlipidemia. Naunyn Schmiedebergs Arch Pharmacol 2008; 379:241-51. [DOI: 10.1007/s00210-008-0363-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2008] [Accepted: 09/30/2008] [Indexed: 12/12/2022]
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27
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Peixoto F, Martins F, Amaral C, Gomes-Laranjo J, Almeida J, Palmeira CM. Evaluation of olive oil mill wastewater toxicity on the mitochondrial bioenergetics after treatment with Candida oleophila. Ecotoxicol Environ Saf 2008; 70:266-275. [PMID: 18262649 DOI: 10.1016/j.ecoenv.2007.11.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2007] [Revised: 11/01/2007] [Accepted: 11/15/2007] [Indexed: 05/25/2023]
Abstract
In a previous work the ability of Candida oleophila to use phenolic compounds as sole carbon and energy source at high concentrations without an additional carbon source was reported. C. oleophila grown in bioreactor batch cultures in a diluted and sterilized olive oil mill wastewater (OMW) caused a significant decrease in the total tannins content but no significant alteration was observed in phenolic acid and fatty acid content. Both treated and untreated OMWs were tested to evaluate the capacity in interfering with mitochondrial bioenergetics. Mitochondrial respiration was not affected by treated OMW on the range of used concentrations, contrary to the untreated OMW. Furthermore, mitochondrial membrane potential and respiratory complexes were always significantly less affected by treated OMW in comparison with untreated OMW. However, supplementary treatment should be applied before OMW could be considered non-toxic.
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Affiliation(s)
- F Peixoto
- Chemistry Department, CECAV, University of Trás-os-Montes and Alto Douro, 5001 Vila Real, Portugal.
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Martins F, Gomes-Laranjo J, Amaral C, Almeida J, Peixoto F. Evaluation of olive oil mill wastewaters acute toxicity: a study on the mitochondrial bioenergetics. Ecotoxicol Environ Saf 2008; 69:480-7. [PMID: 17659777 DOI: 10.1016/j.ecoenv.2007.05.008] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2006] [Revised: 04/11/2007] [Accepted: 05/04/2007] [Indexed: 05/16/2023]
Abstract
Acute toxicity of olive mill wastewaters (OMW), collected from a continuous olive mill, was evaluated in rat liver mitochondrial bioenergetics. Inhibition of respiratory activities in state 4, state 3, and uncoupled respiration are essentially mediated through partial inhibitions of mitochondrial complexes II and III. ATPase activity was considerably less depressed by OMW than ATP synthase activity (a difference of 42%). The inhibition observed on ATP synthase is mostly the result of an inhibition on the redox complexes. Ultimately, the OMW-induced loss of phosphorylation capacity was not only the result of a direct effect of OMW on the enzymatic complex (F(0)-F(1) ATPase), but also the result of a deleterious effect on the integrity of the mitochondrial membrane, which can promote an inhibition of the respiratory complexes and an increase of the proton permeability of the inner membrane.
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Affiliation(s)
- F Martins
- Chemistry Department, CECAV, University of Trás-os-Montes and Alto Douro, 5001 Vila Real, Portugal
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Dias D, Laíns J, Pereira A, Nunes R, Caldas J, Amaral C, Pires S, Costa A, Alves P, Moreira M, Garrido N, Loureiro L. Can we improve gait skills in chronic hemiplegics? A randomised control trial with gait trainer. Eura Medicophys 2007; 43:499-504. [PMID: 18084173] [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: 05/25/2023]
Abstract
AIM Partial body weight support (PBWS) is an accepted treatment for hemiplegic patients. The aim of this study is to compare the efficiency of gait trainer with conventional treatment on the gait management after stroke. METHODS Forty chronic post-stroke hemiplegics were part of a prospective research. Inclusion criteria were: first ever stroke in a chronic stage with stabilised motor deficits; age >18 and <80 years; cognitive and communication skills to understand the treatment; absence of cardiac, psychological and orthopedic contraindications. Patients were randomised into two groups: the control group (CG) that used the Bobath method in 40 minutes sessions, 5 times a week, for 5 weeks, and the experimental group (EG) that used the gait trainer, for the same period of time and frequency. Assessment tools: Motricity Index (MI); Toulouse Motor Scale (TMS); modified Ashworth Spasticity Scale (mASS); Berg Balance Scale (BBS); Rivermead Mobility Index (RMI); Fugl-Meyer Stroke Scale (F-MSS); Functional Ambulation Category (FAC); Barthel Index (BI); 10 meters, time up and go (TUG), 6 minutes, and step tests. EG and CG did the assessments before treatment (T(0)), right after treatment (T(1)), and on follow-up, 3 months later (T(2)). RESULTS CG and EG were homogenous in all the variables at T(0). CG and EG showed improvement in almost all the assessment scales after treatment, although only some with relevant differences. EG showed statistically relevant improvement on T(1) and on T(2) in several of the assessment tools, whereas CG only showed statistically significant improvement after T(1) and only in some of the assessment tools. CONCLUSIONS Both groups of chronic hemiplegic patients improved after either PBWS with gait trainer or Bobath treatment. Only subjects undergoing PBWS with gait trainer maintained functional gain after 3 months.
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Affiliation(s)
- D Dias
- Clinic of Physical Medicine and Rehabilitation, Gouveia, Portugal.
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Amaral C, Small I, Olmedo DB, Sousa A, Toscano E, Sousa P, Pelluso H, Ferreira CG, Sales A, Zukin M. Induction chemoradiotherapy and surgical resection for non-small cell lung carcinomas of the superior sulcus (pancoast tumors): Mature results of National Cancer Institute (INCa)-Brazil. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.17124] [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
17124 Background: The established treatment for T3 Pancoast tumors, radiation plus surgery, leads to a 50% R0 resection rate and a 30% 5 year survivals. T4 tumors are usually unresectable and incurable. Our group retrospectively analyzed the feasibility and efficacy of induction chemoradiotherapy plus surgery for T3 and T4 tumors. Methods: Eligible patients (pts) had biopsy proven, untreated, T3–4N0–1 Pancoast tumors. Induction therapy was cisplatin (50 mg/m2, days 1,8,29,36) and etoposide (50 mg/m2, days 1–5, 29–33) (PE) given concurrently with radiation (45 Gy, 25 daily fractions). Thoracotomy was done within 5 weeks of induction therapy for stable or responding disease. All pts were to receive postoperative chemotherapy (PE ×2). Median follow up was 19 months. Results: From 4/01–6/05, 13 eligible pts were enrolled: 6 men, 7 women, median age 53 years; 9 T3, 4 T4. All pts (100%) completed induction therapy. Grade 3–4 toxicities were neutropenia (n = 2), anemia (n = 1), fatigue (n = 1), esophagitis (n = 5). All pts had thoracotomy, 13 had R0 resection. Pathologic CR was found in 3 (23.1%), minimal microscopic disease in 1 (7.7%). Postoperative chemotherapy completed by only 1/13 pts. Median survival was not reached and Median Disease free (DFS) and 2 year overall survivals (OS) were 26 months (CI 95% 13.6–38.4) 67% for all pts, respectively. Relapse sites were brain only (n = 3) and local only (n = 1). Conclusion: This combined modality therapy was well tolerated and leads to high rates of complete resection, OS and local control that are strikingly better than with radiation and surgery. These results obtained in a population with T3 and T4 tumors reproduced those of the SWOG study in terms of resectability, safety and short-term survival Of note is the poor adherence to postoperative chemotherapy in this population. No significant financial relationships to disclose.
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Affiliation(s)
- C. Amaral
- National Cancer Institute, Rio De Janeiro, Brazil
| | - I. Small
- National Cancer Institute, Rio De Janeiro, Brazil
| | - D. B. Olmedo
- National Cancer Institute, Rio De Janeiro, Brazil
| | - A. Sousa
- National Cancer Institute, Rio De Janeiro, Brazil
| | - E. Toscano
- National Cancer Institute, Rio De Janeiro, Brazil
| | - P. Sousa
- National Cancer Institute, Rio De Janeiro, Brazil
| | - H. Pelluso
- National Cancer Institute, Rio De Janeiro, Brazil
| | | | - A. Sales
- National Cancer Institute, Rio De Janeiro, Brazil
| | - M. Zukin
- National Cancer Institute, Rio De Janeiro, Brazil
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Abstract
BACKGROUND AND OBJECTIVE Anaesthesiology is considered a stressful occupation. Our purpose was to assess stress and burnout among Portuguese anaesthesiologists. METHODS A cross-sectional survey based on an anonymous questionnaire was sent to all Portuguese anaesthesiologists registered by the Portuguese Medical Association. Data on patient characteristics and professional variables, perceived stress (Perceived Stress Scale), the subscale of work satisfaction of the Pressure Management Indicator scale, burnout (Maslach Burnout Inventory) and main stress factors were collected. The proportion of participation was 31.8%. RESULTS The average value of perceived stress scale was 24.0 (range: 0-56). Among the 263 anaesthesiologists, 57.9% experienced emotional exhaustion, 44.8% lack of personal accomplishment and 90.9% depersonalisation. Lack of personal accomplishment increased with number of children among women but not among men; depersonalisation was more frequent among anaesthesiologists working in community hospitals and anaesthesiologists with leadership functions experienced less professional stress. CONCLUSION There are stress conditions and burnout amongst Portuguese anaesthesiologists. The prevalence of depersonalisation was extremely high in the studied sample. Emotional exhaustion is partially explained by high perceived-stress and low satisfaction with organisation in the job according to Pressure Management Indicator scale.
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Affiliation(s)
- A Morais
- Department of Anesthesiology and Intensive Care, Hospital de S. João, Porto, Portugal.
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Albino P, Meireles N, Martins J, Castro JS, Duarte J, Gonçalves A, Amaral C, Bettencourt V, Gonçalves D, Capitão M, Carvalho S. [Iatrogenic traumatic lesions of femoral veins during varicose veins surgery]. Rev Port Cir Cardiotorac Vasc 2003; 10:69-74. [PMID: 15094888] [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: 04/29/2023]
Abstract
Traumatic lesions of the femoral veins during varicose veins surgery are very uncommon and they raise several therapeutic difficulties. They occur in 1/1000 cases of varicose veins operated. The authors describe four cases of lesions of this type that were seen and treated for the last six years, probably because there was an increase in the number of varicose veins operated on in the Lisbon area. The authors discuss the surgical options and they concluded that these complications can be minimized with good anatomical and surgical skills, specially of the saphenous-femoral and saphenous-popliteal junctions.
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Affiliation(s)
- Pereira Albino
- Serviço de Angiologia e Cirurgia Vascular do Hospital de Santa Marta, Lisboa
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Espinosa I, Alvarez E, Amaral C, Alonso M, Lorenzo M. [The production of a latex immunoglobulin conjugate for the diagnosis of Gardnerella vaginalis]. Rev Cubana Med Trop 2000; 52:101-5. [PMID: 11107902] [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: 02/18/2023]
Abstract
To obtain an anti-Gadnerella vaginalis latex globulin, specific immunosera to reference strain (ATCC 14018) and to a clinical isolation strain pool were produced. These immunosera were characterized using PAGE-SDS and immunoblotting where a close antigenic relation between the clinical isolation strains and the reference strain was observed. The latex globulin conjugates obtained from these 2 immunosera were evaluated in vitro with a resulting level of detection of 10 ufc/mL of Gardnerella vaginalis. These two conjugates were also evaluated in clinical samples and compared with the 6 vaginalis culture and the criteria considered for diagnosing bacterial vaginosis. The anti-strain pool (II) latex globulin conjugate turned out to be more sensitive and specific than anti-G. vaginalis ATCC strain (I) latex globulin.
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Affiliation(s)
- I Espinosa
- Centro Nacional de Sanidad Agropecuaria, San José de las Lajas, La Habana, Cuba
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