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Alves C, Mendes D, Penedones A, Oliveira T, Donato A, Batel-Marques F. The effectiveness of ibandronate in reducing the risk of nonvertebral fractures in women with osteoporosis: systematic review and meta-analysis of observational studies. Int J Clin Pharm 2024; 46:357-367. [PMID: 38112890 PMCID: PMC10960777 DOI: 10.1007/s11096-023-01666-x] [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] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/03/2023] [Indexed: 12/21/2023]
Abstract
BACKGROUND Ibandronate is effective in reducing the risk of vertebral fractures, but experimental evidence offers conflicting results regarding nonvertebral fractures. Real-world evidence has been published evaluating the anti-nonvertebral fracture effect of ibandronate. AIM This meta-analysis of observational studies assessed the effectiveness of ibandronate in reducing the risk of nonvertebral fractures in women with osteoporosis. METHOD Pubmed/Embase databases were searched for observational studies. Risks of nonvertebral fractures and hip fractures were the outcomes. Meta-analyses were performed pooling rate ratios (RRs), using random-effects models. Data were reanalysed in sensitivity analyses considering Knapp-Hartung method and Bayesian random-effects. RESULTS Six cohort studies were included. Overall, once-monthly 150 mg oral ibandronate reduced the risk of nonvertebral fractures (RR 0.84; 95% CI 0.76-0.94). Similar results were obtained when the comparison was restricted to once-monthly 150 mg risedronate, but no differences were found when the comparator was other oral bisphosphonates (weekly alendronate/risedronate). Ibandronate didn't significantly change the risk of hip fractures (RR 1.25; 95% CI 0.89-1.76). The risk of hip fracture was comparable between once monthly, 150 mg oral ibandronate and other oral bisphosphonates. Intravenous ibandronate was not effective in reducing hip fractures comparing to intravenous zoledronate. The low number of studies diminished the robustness of sensitivity analyses. CONCLUSION Results suggest that once-monthly 150 mg oral ibandronate may be as effective as other oral bisphosphonates in reducing the risk of nonvertebral fractures. However, uncertainty associated to the small number of included studies, which are characterized by heterogeneous demographics and methodologies, precluded definitive conclusions.
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Affiliation(s)
- Carlos Alves
- Laboratory of Social Pharmacy and Public Health, Faculty of Pharmacy, Polo Ciencias da Saude, University of Coimbra, Azinhaga de Santa Comba, Celas, 3000-548, Coimbra, Portugal.
- Clevidence, Lda., Taguspark, Oeiras, Portugal.
| | - Diogo Mendes
- Laboratory of Social Pharmacy and Public Health, Faculty of Pharmacy, Polo Ciencias da Saude, University of Coimbra, Azinhaga de Santa Comba, Celas, 3000-548, Coimbra, Portugal
- Clevidence, Lda., Taguspark, Oeiras, Portugal
| | - Ana Penedones
- Laboratory of Social Pharmacy and Public Health, Faculty of Pharmacy, Polo Ciencias da Saude, University of Coimbra, Azinhaga de Santa Comba, Celas, 3000-548, Coimbra, Portugal
- Clevidence, Lda., Taguspark, Oeiras, Portugal
| | | | - António Donato
- Laboratory of Social Pharmacy and Public Health, Faculty of Pharmacy, Polo Ciencias da Saude, University of Coimbra, Azinhaga de Santa Comba, Celas, 3000-548, Coimbra, Portugal
- Tecnimede, SA, Sintra, Portugal
| | - Francisco Batel-Marques
- Laboratory of Social Pharmacy and Public Health, Faculty of Pharmacy, Polo Ciencias da Saude, University of Coimbra, Azinhaga de Santa Comba, Celas, 3000-548, Coimbra, Portugal
- Clevidence, Lda., Taguspark, Oeiras, Portugal
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Mendes D, Penedones A, Alves C, Oliveira T, Donato A, Batel-Marques F. Ibandronate in the Prevention of Vertebral and Nonvertebral Osteoporotic Fractures: A Systematic Review of Experimental and Observational Studies. J Clin Rheumatol 2023; 29:78-83. [PMID: 36731043 DOI: 10.1097/rhu.0000000000001902] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND/OBJECTIVE This study aims to evaluate ibandronate clinical effectiveness in the prevention of osteoporosis-related vertebral fractures (VFs) and nonvertebral fractures (NVFs) in the treatment of postmenopausal osteoporosis. METHODS This systematic review was conducted in accordance with the Centre for Reviews and Dissemination's guidance and reporting in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis statement 2020. A literature search was performed in PubMed and EMBASE since their inception until February 7, 2022. Randomized controlled trials (RCTs), meta-analysis, experimental, and observational studies evaluating adult patients treated with ibandronate and assessed to osteoporotic fractures prevention were included. The risk of bias was assessed according to study design. Data were analyzed using descriptive statistics. RESULTS Eight references from 4 RCTs, 7 meta-analyses, and 6 observational studies were included. In RCTs, oral ibandronate was superior to placebo in the prevention of VF. However, the doses were lower than those approved. The meta-analyses confirmed these results and showed that adequate doses of oral ibandronate reduce the risk of NVF compared with insufficient doses. In observational studies, oral ibandronate (in approved doses) reduced the risk of VF compared with no treatment or risedronate or alendronate and the risk of NVF versus risedronate or alendronate; the risk of hip fractures was similar between ibandronate and other oral bisphosphonates. CONCLUSIONS There is strong evidence that ibandronate reduces the risk of VF in postmenopausal osteoporosis. The available evidence further suggests that ibandronate may reduce the risk of NVF versus insufficient doses of ibandronate, as well as risedronate or alendronate.
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Dias J, Vergani G, Gonçalves J, Oliveira T, Batista R, Souza-Fabjan J, Oliveira ME, Fonseca J. 243 Importance of sheep pre-selection based on cervical anatomy for the efficiency of non-surgical embryo recovery. Reprod Fertil Dev 2022. [DOI: 10.1071/rdv35n2ab243] [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: 12/07/2022] Open
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Oliva CB, Kaczynska A, Oliveira T, Frater J, Fidler S, Nussenzweig M, Caskey M, Gaebler C. PP 8.11 – 00174 Distinct HIV reservoir characteristics among individuals treated during primary versus chronic HIV infection. J Virus Erad 2022. [DOI: 10.1016/j.jve.2022.100291] [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: 12/24/2022] Open
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Oliveira T, Brown J, Juby AG, Schneider P, Wani RJ, Packalen M, Avcil S, Li S, Farris M, Graves E, McMullen S, Kendler DL. Trends in osteoporosis care patterns during the COVID-19 pandemic in Alberta, Canada. Arch Osteoporos 2022; 17:110. [PMID: 35920939 PMCID: PMC9349101 DOI: 10.1007/s11657-022-01132-7] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 06/13/2022] [Indexed: 02/03/2023]
Abstract
PURPOSE/INTRODUCTION The objective of this study was to describe osteoporosis-related care patterns during the coronavirus disease 2019 (COVID-19) pandemic in Alberta, Canada, relative to the 3-year preceding. METHODS A repeated cross-sectional study design encompassing 3-month periods of continuous administrative health data between March 15, 2017, and September 14, 2020, described osteoporosis-related healthcare resource utilization (HCRU) and treatment patterns. Outcomes included patients with osteoporosis-related healthcare encounters, physician visits, diagnostic and laboratory test volumes, and treatment initiations and disruptions. The percent change between outcomes was calculated, averaged across the control periods (2017-2019), relative to the COVID-19 periods (2020). RESULTS Relative to the average control March to June period, all HCRU declined during the corresponding COVID-19 period. There was a reduction of 14% in patients with osteoporosis healthcare encounters, 13% in general practitioner visits, 9% in specialist practitioner visits, 47% in bone mineral density tests, and 13% in vitamin D tests. Treatment initiations declined 43%, 26%, and 35% for oral bisphosphonates, intravenous bisphosphonates, and denosumab, respectively. Slight increases were observed in the proportion of patients with treatment disruptions. In the subsequent June to September period, HCRU either returned to or surpassed pre-pandemic levels, when including telehealth visits accounting for 33-45% of healthcare encounters during the COVID periods. Oral bisphosphonate treatment initiations remained lower than pre-pandemic levels. CONCLUSIONS This study demonstrates the COVID-19 pandemic and corresponding public health lockdowns further heightened the "crisis" around the known gap in osteoporosis care and altered the provision of care (e.g., use of telehealth and initiation of treatment). Osteoporosis has a known substantial care and management disparity, which has been classified as a crisis. The COVID-19 pandemic created additional burden on osteoporosis patient care with healthcare encounters, physician visits, diagnostic and laboratory tests, and treatment initiations all declining during the initial pandemic period, relative to previous years.
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Affiliation(s)
- T Oliveira
- Amgen Canada Inc, Mississauga, ON, Canada
| | - J Brown
- Department of Medicine, Division of Rheumatology, Laval University and CHU de Québec Research Centre, Quebec City, QC, Canada
| | - A G Juby
- Department of Medicine, Division of Geriatric Medicine, University of Alberta, Edmonton, AB, Canada
| | - P Schneider
- Division of Orthopaedic Trauma, Department of Surgery, University of Calgary, Calgary, AB, Canada
| | - R J Wani
- Amgen Canada Inc, Mississauga, ON, Canada
| | - M Packalen
- Amgen Canada Inc, Mississauga, ON, Canada
| | - S Avcil
- Amgen Canada Inc, Mississauga, ON, Canada
| | - S Li
- Medlior Health Outcomes Research Ltd, Calgary, AB, Canada
| | - M Farris
- Medlior Health Outcomes Research Ltd, Calgary, AB, Canada
| | - E Graves
- Medlior Health Outcomes Research Ltd, Calgary, AB, Canada
| | - S McMullen
- Medlior Health Outcomes Research Ltd, Calgary, AB, Canada.
| | - D L Kendler
- Department of Medicine, Division of Endocrinology, University of British Columbia, Vancouver, BC, Canada
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Oliveira T, Kendler DL, Schneider P, Juby AG, Wani RJ, Packalen M, Avcil S, Li S, Waters-Banker C, Graves E, McMullen S, Brown J. Trends in osteoporotic fracture and related in-hospital complications during the COVID-19 pandemic in Alberta, Canada. Arch Osteoporos 2022; 17:109. [PMID: 35920903 PMCID: PMC9349109 DOI: 10.1007/s11657-022-01114-9] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 04/25/2022] [Indexed: 02/03/2023]
Abstract
Fragility fractures (i.e., low-energy fractures) account for most fractures among older Canadians and are associated with significant increases in morbidity and mortality. Study results suggest that low-energy fracture rates (associated with surgical intervention and outcomes) declined slightly, but largely remained stable in the first few months of the COVID-19 pandemic. PURPOSE/INTRODUCTION This study describes rates of low-energy fractures, time-to-surgery, complications, and deaths post-surgery in patients with fractures during the coronavirus disease (COVID-19) pandemic in Alberta, Canada, compared to the three years prior. METHODS A repeated cross-sectional study was conducted using provincial-level administrative health data. Outcomes were assessed in 3-month periods in the 3 years preceding the COVID-19 pandemic and in the first two 3-month periods after restrictions were implemented. Patterns of fracture- and hospital-related outcomes over the control years (2017-2019) and COVID-19 restrictions periods (2020) were calculated. RESULTS Relative to the average from the control periods, there was a slight decrease in the absolute number of low-energy fractures (n = 4733 versus n = 4308) during the first COVID-19 period, followed by a slight rise in the second COVID-19 period (n = 4520 versus n = 4831). While the absolute number of patients with low-energy fractures receiving surgery within the same episode of care decreased slightly during the COVID-19 periods, the proportion receiving surgery and the proportion receiving surgery within 24 h of admission remained stable. Across all periods, hip fractures accounted for the majority of patients with low-energy fractures receiving surgery (range: 58.9-64.2%). Patients with complications following surgery and in-hospital deaths following fracture repair decreased slightly during the COVID-19 periods. CONCLUSIONS These results suggest that low-energy fracture rates, associated surgeries, and surgical outcomes declined slightly, but largely remained stable in the first few months of the pandemic. Further investigation is warranted to explore patterns during subsequent COVID-19 waves when the healthcare system experienced severe strain.
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Affiliation(s)
- T Oliveira
- Amgen Canada Inc, Mississauga, ON, Canada
| | - D L Kendler
- Department of Medicine, Division of Endocrinology, University of British Columbia, Vancouver, BC, Canada
| | - P Schneider
- Division of Orthopaedic Trauma, Department of Surgery, University of Calgary, Calgary, AB, Canada
| | - A G Juby
- Department of Medicine, Division of Geriatric Medicine, University of Alberta, Edmonton, AB, Canada
| | - R J Wani
- Amgen Canada Inc, Mississauga, ON, Canada
| | - M Packalen
- Amgen Canada Inc, Mississauga, ON, Canada
| | - S Avcil
- Amgen Canada Inc, Mississauga, ON, Canada
| | - S Li
- Medlior Health Outcomes Research Ltd, Suite 210 - 28 Quarry Park Blvd, Calgary, AB, T2C 5P9, Canada
| | - C Waters-Banker
- Medlior Health Outcomes Research Ltd, Suite 210 - 28 Quarry Park Blvd, Calgary, AB, T2C 5P9, Canada
| | - E Graves
- Medlior Health Outcomes Research Ltd, Suite 210 - 28 Quarry Park Blvd, Calgary, AB, T2C 5P9, Canada
| | - S McMullen
- Medlior Health Outcomes Research Ltd, Suite 210 - 28 Quarry Park Blvd, Calgary, AB, T2C 5P9, Canada.
| | - J Brown
- Department of Medicine, Laval University and CHU de Québec Research Centre, Quebec City, QC, Canada
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Silva Gaspar SR, Fernandes M, Castro A, Oliveira T, Santos Dias J, Palma Dos Reis J. Active surveillance protocol in prostate cancer in Portugal. Actas Urol Esp 2022; 46:329-339. [PMID: 35277378 DOI: 10.1016/j.acuroe.2022.01.002] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 12/16/2020] [Accepted: 01/13/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To examine clinical practice patterns in locally managing patients under an active surveillance protocol among Portuguese urologists. INTRODUCTION Prostate cancer (PCa) is a heterogeneous disease with many prostate adenocarcinomas being indolent and a low probability of ever causing symptoms or death. Active surveillance (AS) is a form of conservative management aimed to reduce over-treatment for low-risk PCa patients. Over the years, experience with AS has grown considerably and is now standard in some countries, however a universal protocol still does not exist. METHODS Nationwide anonymous e-survey concerning habits and practices on AS among Portuguese urologists, that consisted of twelve questions and was sent electronically to all 368 current members of the Portuguese Urological Association. RESULTS 56 urologists were surveyed (15.21% answer rate), evenly distributed geographically and allocated according to years of experience as well as number of PCa patients managed monthly. The vast majority of respondents recommends AS to their patients, particularly ISUP grade 1 patients, whose PSA serum level is bellow 20 ng/mL. Observance of AS programs by patients was not in question but concerns exist over psychological morbidity while harboring disease. Majority believed that international guidelines surveillance protocols were adequate and sufficient, but there are some constraints concerning availability of periodic MRIs and re-biopsy needs. CONCLUSIONS AS seems to be sustained in urologist clinical practice, although patients still lag to adhere and choose for active treatment. AS may not be an easy choice for patients and clinicians due to uncertainty of disease progression, risk of loss to follow-up and repeated biopsies but is also a cause for anxiety, depression, uncertainty and a perception of danger.
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Affiliation(s)
- S R Silva Gaspar
- Department of Urology, Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal.
| | - M Fernandes
- Department of Urology, Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal
| | - A Castro
- Department of Urology, Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal
| | - T Oliveira
- Department of Urology, Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal
| | - J Santos Dias
- Department of Urology, Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal
| | - J Palma Dos Reis
- Department of Urology, Centro Hospitalar Universitário Lisboa Norte, Lisboa, Portugal
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Garagarza C, Valente A, Caetano C, Ramos I, Sebastião J, Pinto M, Oliveira T, Ferreira A, Guerreiro CS. Do dietary patterns influence survival in hemodialysis patients? Clin Nutr ESPEN 2021. [DOI: 10.1016/j.clnesp.2021.09.344] [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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Pacheco P, Pacheco M, Marinho D, Oliveira T, Marques A, Souza K, Franco E, Maia J, Silva L, Molini-Avejonas D. Impacts of social distancing during the covid19 pandemic on the development of children with autism in Brazil. Eur Psychiatry 2021. [PMCID: PMC9528258 DOI: 10.1192/j.eurpsy.2021.704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction
COVID-19 is a respiratory disease and its main symptoms are fever, dry cough and difficulty breathing. It spread to several countries, which led the World Health Organization to decree, on March 11, 2020, a pandemic state that deeply affected Brazil. Due to the impossibility of leaving the house, the routine of children with autism was changed. Children in Autism Spectrum Disorder (ASD) have a qualitative deficit in social interaction. Clinical and daily observations reinforce several scientific studies that defend the importance of maintaining a routine as stable as possible for people with ASD, without this stability they may become emotionally disorganized, feel discomfort or even irritability.ObjectivesInvestigate the impact caused by social distancing on the development of children and adolescents with autism.MethodsAn online questionnaire based on the DIR/Floortime basic map of emotional functional capacity development was distributed in Brazil from April to May, 2020. The results were analyzed using SPSS software.ResultsResults obtained from 122 questionnaires showed that after 30 days of quarantine 20% of children no longer had the characteristic of being able to remain calm and organized for at least 2 minutes; 11% no longer initiates interactions with their parents; 27% demonstrated more protests and anger than before the social distancing; 18% demonstrated more emotions such as anger, fear and intimacy, 28% began to understand their limits and 12% of the children are using greater facial expression during the social distancing.ConclusionsThis study brings results that can help to understand the processes in a child with autism.
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Schettino R, Ornelas C, Antônio M, Oliveira T, Soares S, Almeida S. The Functioning of Outreach Programs Of/On the Street and the Work Processes of the Nurse. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.923] [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: 11/13/2022] Open
Abstract
Abstract
Problem
Homeless people (PSR) are a heterogeneous and fragile group. They are among the most excluded ones from health service access because they cannot present a regular home. They are also a population who have great difficulty of accessing the entrance and mostly search only for emergency and urgency services when their lives are at stake. This intervention is important because it aims at decreasing the inequalities to health access and, moreover, it decreases the difficulties to health access.
Description of the problem
A field visit to an outreach program on the street (CR) in Belo Horizonte was made on April, 22nd and on May, 6th in 2019. This program is linked to a Health Center. The objectives were knowing the functioning of outreach programs on the street and understanding the assignments and participation of the team nurse on working with PSR.
Results
By acting with and approaching PSR, the nurse can create contact and humanized listening. This is an attempt to establish user / professional bonds. During this contact, the professional struggles to encourage the user to search the health attention net. This professional also approaches the rupture with home, with the family, with the work, and with others. He/She tries to support users to face the challenges and to stimulate social reinsertion as well. Tests on the street to detect HIV/AIDS and syphilis are made, guaranteeing the individual privacy right. By approaching PSR, it is crucial that the nurse, who is part of the multi-professional team, be free of any prejudice and stigmas which can make the attendance success difficult. The application of health expanded concept was also present because it considers the complexity of health, mainly to those who inhabit the streets.
Lessons
The nurse can succeed in facing inequity. This decreases not only the barriers established by social inequalities but also the organizational barriers PSR are exposed all the time.
Key messages
Attendance prioritizes local care. It not only tries to attend social and health problems but also shared actions with Health Centers. At last, it should be an example to other countries. It is important for health professionals to reinvent their practices, searching partnerships and the acquisition of new knowledge to succeed in decreasing individuals’ demands.
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Affiliation(s)
- R Schettino
- Nursing Course, Faculty of Medical Sciences of Minas Gerais, Belo Horizonte, Brazil
| | - C Ornelas
- Nursing Course, Faculty of Medical Sciences of Minas Gerais, Belo Horizonte, Brazil
| | - M Antônio
- Nursing Course, Faculty of Medical Sciences of Minas Gerais, Belo Horizonte, Brazil
| | - T Oliveira
- Nursing Course, Faculty of Medical Sciences of Minas Gerais, Belo Horizonte, Brazil
| | - S Soares
- Faculty of Medical Sciences of Minas Gerais, Belo Horizonte, Brazil
| | - S Almeida
- Faculty of Medical Sciences of Minas Gerais, Belo Horizonte, Brazil
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Faquim J, Macedo J, Oliveira J, Machado S, Ivancko G, Costa K, Alves M, Oliveira T. Profile of incarcerated women in the interior of Brazil and the challenge of education in prison. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.1260] [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: 11/14/2022] Open
Abstract
Abstract
According to the Ministry of Justice and Public Security, Brazil is fourth in the world position in relation to the absolute size of female prison population, with 42.000 women deprived of freedom (2016), behind the United States, China and Russia. Around 50% are young (< 29 years old), 62% are black and 66% have not yet attended high school. This study aimed to characterize the profile of women incarcerated in a penitentiary in the interior of Brazil, through the survey of sociodemographic data, education, health, legal and life expectations. This is a descriptive and exploratory study conducted with 68 women (20 to 67 years old) in 2019 and 2020. Most women declared themselves black or brown (56%), incomplete elementary school (42%), have work experience (73%). Around 69% reported needing health treatment and 76% have already used psychoactive substances including alcohol, cigarettes, marijuana, cocaine or crack. The main reasons that led to the arrest were drug trafficking (54%) and theft (26%) and the majority (53%) are repeat offenders in prison system. Regarding the biggest dream of life, the main answers were related to family life (44%), having a job (26%) and access to education (20%). With these results, an extension project was proposed to offer a professional qualification in vegetable gardens, aromatic and medicinal plants for women prisoners. In addition to professional qualification, the project is dedicated to promoting debates on map of life, ethics, human relations, citizenship, gender, women's rights and health, quality of life, body and verbal expression, digital inclusion, food and nutrition security, entrepreneurship, cooperativism, solidary economy, rights and duties of the worker, aiming at better employment conditions. This research contributed to articulate actions between university and society, empower women through access to education and allowed the work team to develop competencies related to collaborative work and interdisciplinarity.
Key messages
This study aimed to characterize the profile of women incarcerated in a penitentiary in Brazil, through the survey of sociodemographic data, education, health, legal and life expectations. This research contributed to articulate actions between university-society, empower incarcerated women through access to education and allowed the work team collaborative and interdisciplinarity work.
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Affiliation(s)
- J Faquim
- Technical School of Health, Federal University of Uberlândia, Uberlândia-MG, Brazil
| | - J Macedo
- Law School, Pitágoras University, Uberlândia-MG, Brazil
| | - J Oliveira
- Technical School of Health, Federal University of Uberlândia, Uberlândia-MG, Brazil
| | - S Machado
- Faculty of Business and Management, Federal University of Uberlândia, Uberlândia-MG, Brazil
| | - G Ivancko
- Faculty of Environmental Management, Federal University of Uberlândia, Uberlândia-MG, Brazil
| | - K Costa
- Faculty of Geography, Federal University of Uberlândia, Uberlândia-MG, Brazil
| | - M Alves
- Law School, Pitágoras University, Uberlândia-MG, Brazil
| | - T Oliveira
- Faculty of Nutrition, Federal University of Uberlândia, Uberlândia-MG, Brazil
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Oliveira T, Melo N, Guimarães S, Morais A. Diagnostic challenges of hypersensitivity pneumonitis with autoimmune features: Dealing with more than a coincidence? Pulmonology 2020; 26:320-323. [PMID: 32229195 DOI: 10.1016/j.pulmoe.2020.02.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 02/23/2020] [Accepted: 02/28/2020] [Indexed: 11/30/2022] Open
Affiliation(s)
- T Oliveira
- Pulmonology Department, Centro Hospitalar Universitário do Porto - Hospital de Santo António, Largo do Prof. Abel Salazar, 4099-001 Porto, Portugal; Abel Salazar Institute of Biomedical Sciences - University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - N Melo
- Pulmonology Department, Centro Hospitalar Universitário de São João - Hospital de São João, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
| | - S Guimarães
- Anatomic Pathology Department, Centro Hospitalar Universitário de São João - Hospital de São João, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal; Faculty of Medicine - University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
| | - A Morais
- Pulmonology Department, Centro Hospitalar Universitário de São João - Hospital de São João, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal; Faculty of Medicine - University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal
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Gutner-Hoch E, Martins R, Maia F, Oliveira T, Shpigel M, Weis M, Tedim J, Benayahu Y. Toxicity of engineered micro- and nanomaterials with antifouling properties to the brine shrimp Artemia salina and embryonic stages of the sea urchin Paracentrotus lividus. Environ Pollut 2019; 251:530-537. [PMID: 31108285 DOI: 10.1016/j.envpol.2019.05.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 12/11/2018] [Revised: 04/30/2019] [Accepted: 05/07/2019] [Indexed: 05/24/2023]
Abstract
Antifouling booster biocides are chemicals used in protective paints to tackle the adhesion of fouling organisms to maritime artificial structures. However, they are also known to exert toxic effects on non-target organisms. Recent research developments have highlighted the potential use of engineered micro/nanomaterials (EMNMs) as carriers of antifouling booster biocides in order to control their release and to reduce the harmful effects on living biota. In the present study, we sought to assess the toxicity of two commercially-available booster biocides: (zinc pyrithione (ZnPT) and copper pyrithione (CuPT)); three unloaded engineered micro/nanomaterials (EMNMs); layered double hydroxides (LDH), silica nanocapsules (SiNC), polyurea microcapsules (PU); , and six novel EMNMs (loaded with each of the two biocides). The exposure tests were conducted on the larval stage (nauplii) of the brine shrimp Artemia salina and on two embryonic developmental stages of the European purple sea urchin Paracentrotus lividus. The findings indicate that the unloaded LDH and PU (i.e. both biocide-free EMNMs) have non/low toxic effects on both species. The unloaded SiNC, in contrast, exerted a mild toxic effect on the A. salina nauplii and P. lividus embryos. The free biocides presented different toxicity values, with ZnPT being more toxic than CuPT in the P. lividus assays. LDH-based pyrithiones demonstrated lower toxicity compared to the free forms of the state-of-the-art compounds, and constitute good candidates in terms of their antifouling efficacy.
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Affiliation(s)
- Eldad Gutner-Hoch
- School of Zoology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv, 66978, Israel; Interuniversity Institute for Marine Sciences in Eilat, Eilat, Israel
| | - Roberto Martins
- Department of Biology and CESAM, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Frederico Maia
- Smallmatek - Small Materials and Technologies, Lda., Rua Canhas, 3810-075, Aveiro, Portugal
| | - Tânia Oliveira
- Smallmatek - Small Materials and Technologies, Lda., Rua Canhas, 3810-075, Aveiro, Portugal
| | - Muki Shpigel
- Interuniversity Institute for Marine Sciences in Eilat, Eilat, Israel; MorrisKahn Marine Research Station, Department of Marine Biology, Leon H. CharneySchool of Marine Sciences, University of Haifa, Haifa, Israel
| | - Michal Weis
- School of Zoology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv, 66978, Israel
| | - João Tedim
- CICECO - Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Yehuda Benayahu
- School of Zoology, George S. Wise Faculty of Life Sciences, Tel Aviv University, Ramat Aviv, Tel Aviv, 66978, Israel.
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Marinho V, Pinto GR, Bandeira J, Oliveira T, Carvalho V, Rocha K, Magalhães F, de Sousa VG, Bastos VH, Gupta D, Orsini M, Teixeira S. Impaired decision-making and time perception in individuals with stroke: Behavioral and neural correlates. Rev Neurol (Paris) 2019; 175:367-376. [PMID: 30922589 DOI: 10.1016/j.neurol.2018.10.004] [Citation(s) in RCA: 1] [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: 06/07/2018] [Revised: 10/09/2018] [Accepted: 10/09/2018] [Indexed: 01/03/2023]
Abstract
Several studies have demonstrated that stroke subjects present impairment of functions related to decision-making and timing, involving the information processing in the neural circuits of the cerebellum in association with the prefrontal cortex. This review is aimed to identify the gaps, and demonstrate a better understanding of decision-making and timing functions in the patients with stroke. Electronic literature database was searched and the findings of relevant studies were used to explore the mechanisms of decision-making and timing in patients with stroke, as well as the circuit connections in timing mediated by prefrontal cortex and cerebellum. A literature review was conducted with 65 studies that synthesized findings on decision-making and time perception in individuals with stroke. Types of neurobiological modalities in this study included: Relationships among decision-making, time perception, related cognitive aspects (such as discrimination tasks, verbal estimation, bisection tasks, time production and motor reproduction), and motor control. We demonstrate that the timing processes are important for the performance in cognitive tasks and that the cerebellum and prefrontal cortex are involved in decision-making and time perception. In the context, the decision-making is impaired in stroke patients has a great impact on executive functions, and this seems to be important in determining neurobiological aspects relevant to the time interval interpretation.
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Affiliation(s)
- V Marinho
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil; Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba-PI, Brazil; The Northeast Biotechnology Network, Federal University of Piauí, Teresina-PI, Brazil.
| | - G R Pinto
- Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba-PI, Brazil; The Northeast Biotechnology Network, Federal University of Piauí, Teresina-PI, Brazil
| | - J Bandeira
- Teresina Unified Education Center - CEUT, Teresina-PI, Brazil
| | - T Oliveira
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil; Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba-PI, Brazil; The Northeast Biotechnology Network, Federal University of Piauí, Teresina-PI, Brazil
| | - V Carvalho
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil; The Northeast Biotechnology Network, Federal University of Piauí, Teresina-PI, Brazil
| | - K Rocha
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil; The Northeast Biotechnology Network, Federal University of Piauí, Teresina-PI, Brazil
| | - F Magalhães
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil; The Northeast Biotechnology Network, Federal University of Piauí, Teresina-PI, Brazil
| | - V G de Sousa
- Genetics and Molecular Biology Laboratory, Federal University of Piauí, Parnaíba-PI, Brazil
| | - V H Bastos
- The Northeast Biotechnology Network, Federal University of Piauí, Teresina-PI, Brazil; Brain Mapping and Functionality Laboratory, Federal University of Piauí, Parnaíba-PI, Brazil
| | - D Gupta
- Department of Biology, Camden County College, Blackwood, NJ, USA
| | - M Orsini
- Master's Program in Local Development Program, University Center Augusto Motta - UNISUAM, Rio de Janeiro, Brazil
| | - S Teixeira
- Neuro-innovation Technology & Brain Mapping Laboratory, Federal University of Piauí, Parnaíba, Brazil; The Northeast Biotechnology Network, Federal University of Piauí, Teresina-PI, Brazil
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Andrade M, Santos T, Andrade L, Oliveira M, Gomes K, Araujo C, Oliveira T, Weller M. Reduction of Breast Cancer Treatment Delay as a Result of Efforts Carried Out by Two Brazilian NGOs. J Glob Oncol 2018. [DOI: 10.1200/jgo.18.26500] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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
Background: Brazilian breast cancer patients present disease often at advanced stages (III, IV). Previous studies indicated that system delay is a causal factor of bad prognosis and increased mortality rate. In the state of Paraíba, northeast of Brazil, two non-governmental organizations (NGOs) Américas Amigas and Mulheres de Peito de Campina Grande (MLDP), promote faster access to treatment by donating diagnostic mammography and biopsies as well as anatomo-histopathological and immunohistochemical analysis. Aim: The current study aimed at evaluating the effectiveness of the assistance provided by both NGOs and comparing patient flow between HNL and FAP, two reference cancer centers in João Pessoa and Campina Grande, respectively. Methods: Time-to-treatment was analyzed for different time intervals between first medical consultation and initiation of treatment. Comparison was performed between three groups of patients: 40 patients from Hospital Napoleão Laureano (HNL) in João Pessoa; 80 patients from Fundação Assistencial da Paraíba (FAP) in Campina Grande and 15 patients from FAP, who received support from the NGOs. Kaplan-Meier analysis was performed to compare time-intervals among the groups. To estimate the impact of socioeconomic variables Cox regression analysis was performed. Results: Mean time-interval between first medical consultation and hospital admission was 135 (SD=21.0), 370 (SD=73.7) and 515 (SD=36.6) days, for patients of HNL, MLDP and FAP, respectively ( P = 0.0021). Time intervals analyzed for patients within the FAP hospital, between first medical consultation and hospital admission, tended to be shorter for patients who were assisted by the NGOs, compared with those who did not receive any assistance from the NGOs. Patients who had consulted specialized oncological health services beforehand had an increased chance (HZ=2.32; 95% CI: 1.17-4.60; P = 0.016) of being admitted at the reference hospital within 90 days after the first medical consultation, compared with those who had not consulted such specialized services. There were no significant differences between HNL and FAP, regarding the time interval between hospital admission and treatment initiation ( P = 0.21). Conclusion: The assistance to patients provided by the two NGOs, aimed at speeding up the diagnosis process, accelerated patient flow between first medical consultation and admission at the hospitals. Regarding HNL, patients from the inland had been sent by primary health units in their municipalities, directly to the cancer reference hospital in João Pessoa, without being referred to an in-between health service. Such procedure explains the variation of time intervals when admissions at FAP and HNL are compared. The results of the current study indicate that by providing faster breast cancer diagnosis, the NGOs’ mediation can significantly improve patient flow.
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Affiliation(s)
| | | | | | | | - K. Gomes
- Américas Amigas, São Paulo, Brazil
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Almeida CMR, Oliveira T, Reis I, Gomes CR, Mucha AP. Bacterial community dynamic associated with autochthonous bioaugmentation for enhanced Cu phytoremediation of salt-marsh sediments. Mar Environ Res 2017; 132:68-78. [PMID: 29122290 DOI: 10.1016/j.marenvres.2017.10.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 05/20/2017] [Revised: 10/09/2017] [Accepted: 10/13/2017] [Indexed: 05/12/2023]
Abstract
Autochthonous bioaugmentation for metal phytoremediation is still little explored, particularly its application to estuarine salt marshes, but results obtained so far are promising. Nevertheless, understanding the behaviour of the microbial communities in the process of bioaugmentation and their role in improving metal phytoremediation is very important to fully validate the application of this biological technology. This study aimed to characterize the bacterial community dynamic associated with the application of autochthonous bioaugmentation in an experimentation which showed that Phragmites australis rhizosphere microorganisms could increase this salt marsh plant potential to phytoremediate Cu contaminated sediments. Bacterial communities present in the autochthonous microbial consortium resistant to Cu added to the medium and in the sediment at the beginning and at the end of the experiment were characterized by ARISA. Complementarily, the consortium and the sediment used for its production were characterized by next generation sequencing using the pyrosequencing platform 454. The microbial consortium resistant to Cu obtained from non-vegetated sediment was dominated by the genus Lactococcus (46%), Raoultella (25%), Bacillus (12%) and Acinetobacter (11%), whereas the one obtained form rhizosediment was dominated by the genus Gluconacetobacter (77%), Bacillus (17%) and Dyella (3%). Results clearly showed that, after two months of experiment, Cu caused a shift in the bacterial community structure of sediments, an effect that was observed either with or without addition of the metal resistant microbial consortium. Therefore, bioaugmentation application improved the process of phytoremediation (metal translocation by the plant was increased) without inducing long term changes in the bacterial community structure of the sediments. So, phytoremediation combined with autochthonous bioaugmentation can be a suitable technology for the recovery of estuarine areas, contributing for an efficient risk management strategy of these coastal zones.
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Affiliation(s)
- C Marisa R Almeida
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.
| | - Tânia Oliveira
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - Izabela Reis
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
| | - Carlos R Gomes
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - Ana P Mucha
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal
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McVety A, Beal J, Bernard J, Hoffman J, Lorenzin J, McKelvie R, Richardson J, Studenny M, Suskin N, Smith S, Unsworth K, Young L, Meneray J, Oliveira T, Reintjes N. HEART FAILURE GUIDELINES APPLIED IN PRACTICE (HF-GAP) TOOLKIT REVISION 2016. Can J Cardiol 2017. [DOI: 10.1016/j.cjca.2017.07.442] [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: 10/18/2022] Open
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19
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Barros P, Amaral A, Abrantes L, Oliveira T, Louro H, Silva M, Jordan P, Gama-Carvalho M, Matos P. Stimulation of RAC1/PAK1 signalling upregulates DNA damage repair genes via the BCL6/STAT5-switch. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx361.069] [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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20
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Bogossian P, Piffer M, Maschietto F, Bezerra K, Oliveira T, Fernandes G, Hilgert A, Stievani F, Martins T, Fernandes W. Effect of carbohydrate mouth rinse on exercise performance in horses. Comparative Exercise Physiology 2017. [DOI: 10.3920/cep160036] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The mechanism related to the practice of oral carbohydrate (CHO) supplementation prior to intense exercise of a short duration (<30 min) for athletic horses remains unclear. Several studies in human athletes showed that the central nervous system played an important role in the enhancement of athletic performance due to CHO contact with undefined receptors in the oropharyngeal mucosa. This study aims to investigate the influence of CHO mouth rinse on the exercise performance of horses. In this double blind, randomised, placebo-controlled study, seven Mangalarga Marchador horses underwent a standardised exercise test (SET) in a field. The following protocols involving a single mouthwash (1 litre) had been used: a mouth rinse of 6.4% maltodextrin-water solution (CHO test), and a mouth rinse of only water solution (placebo test). The mean plasma lactate concentration immediately after SET (lactate peak) was higher in the CHO test (24.33±3.72 mmol/l) than in the placebo test (18.19±4.01 mmol/l), (P<0.001). No difference was observed in the mean time-to-exhaustion, mean and maximum heart rate, plasma glucose concentration and serum creatinine-kinase activity. Several studies described that there were improvements in the time-trial performance of cyclists and runners after a mouth rinse of CHO solution, whereas some did not. Carbohydrate mouth rinse had no influence on exercise performance in this study. Further investigations are required, as the significance of an increased plasma lactate concentration due to a CHO mouth rinse has yet to be elucidated.
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Affiliation(s)
- P.M. Bogossian
- Department of Internal Medicine – School of Veterinary Medicine, University of Sao Paulo, 87 Professor Doutor Orlando Marques de Paiva Avenue, 5508 270 São Paulo, Brazil
| | - M.L.T. Piffer
- Department of Internal Medicine – School of Veterinary Medicine, University of Sao Paulo, 87 Professor Doutor Orlando Marques de Paiva Avenue, 5508 270 São Paulo, Brazil
| | - F.B. Maschietto
- Department of Internal Medicine – School of Veterinary Medicine, University of Sao Paulo, 87 Professor Doutor Orlando Marques de Paiva Avenue, 5508 270 São Paulo, Brazil
| | - K.B. Bezerra
- Department of Internal Medicine – School of Veterinary Medicine, University of Sao Paulo, 87 Professor Doutor Orlando Marques de Paiva Avenue, 5508 270 São Paulo, Brazil
| | - T. Oliveira
- Department of Internal Medicine – School of Veterinary Medicine, University of Sao Paulo, 87 Professor Doutor Orlando Marques de Paiva Avenue, 5508 270 São Paulo, Brazil
| | - G.P.C. Fernandes
- Department of Internal Medicine – School of Veterinary Medicine, University of Sao Paulo, 87 Professor Doutor Orlando Marques de Paiva Avenue, 5508 270 São Paulo, Brazil
| | - A.R. Hilgert
- Department of Internal Medicine – School of Veterinary Medicine, University of Sao Paulo, 87 Professor Doutor Orlando Marques de Paiva Avenue, 5508 270 São Paulo, Brazil
| | - F.C. Stievani
- Department of Internal Medicine – School of Veterinary Medicine, University of Sao Paulo, 87 Professor Doutor Orlando Marques de Paiva Avenue, 5508 270 São Paulo, Brazil
| | - T.R. Martins
- Department of Internal Medicine – School of Veterinary Medicine, University of Sao Paulo, 87 Professor Doutor Orlando Marques de Paiva Avenue, 5508 270 São Paulo, Brazil
| | - W.R. Fernandes
- Department of Internal Medicine – School of Veterinary Medicine, University of Sao Paulo, 87 Professor Doutor Orlando Marques de Paiva Avenue, 5508 270 São Paulo, Brazil
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Oliveira T, Pizarro A, Costa M, Fernandes L, Silva G, Mota J, Ribeiro JC. Cardiorespiratory fitness, but not physical activity, is associated with academic achievement in children and adolescents. Ann Hum Biol 2017; 44:309-315. [DOI: 10.1080/03014460.2017.1308010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Tânia Oliveira
- Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Portugal, Porto, Portugal
| | - Andreia Pizarro
- Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Portugal, Porto, Portugal
| | - Manuela Costa
- Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Portugal, Porto, Portugal
| | - Luís Fernandes
- Centre of Research, Education, Innovation and Intervention in Sport, Faculty of Sport, University of Porto, Portugal, Porto, Portugal
| | - Gustavo Silva
- Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Portugal, Porto, Portugal
| | - Jorge Mota
- Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Portugal, Porto, Portugal
| | - José Carlos Ribeiro
- Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Portugal, Porto, Portugal
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Avelelas F, Martins R, Oliveira T, Maia F, Malheiro E, Soares AMVM, Loureiro S, Tedim J. Efficacy and Ecotoxicity of Novel Anti-Fouling Nanomaterials in Target and Non-Target Marine Species. Mar Biotechnol (NY) 2017; 19:164-174. [PMID: 28280946 DOI: 10.1007/s10126-017-9740-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [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: 02/15/2016] [Accepted: 02/04/2017] [Indexed: 06/06/2023]
Abstract
Biofouling is a global problem that affects virtually all the immersed structures. Currently, several novel environmentally friendly approaches are being tested worldwide to decrease the toxicity of biocides in non-fouling species, such as the encapsulation/immobilization of commercially available biocides, in order to achieve control over the leaching rate. The present study addresses the toxicity of two widely used booster biocides, zinc pyrithione (ZnPT) and copper pyrithione (CuPT), in its free and incorporated forms in order to assess their toxicity and anti-fouling efficacy in target and non-target species. To achieve this goal, the following marine organisms were tested; the green microalgae Tetraselmis chuii (non-target species) and both target species, the diatom Phaeodactylum tricornutum and the mussel Mytilus edulis. Organisms were exposed to both biocides, two unloaded nanostructured materials and nanomaterials loaded with biocides, from 10 μg/L to 100 mg/L total weight, following standard protocols. The most eco-friendly and simultaneously efficient anti-fouling solution against the two photosynthetic species (nanoclays loaded with ZnPT) was then tested on mussels to assess its lethal efficacy (LC50 = 123 μg/L) and compared with free biocide (LC50 = 211 μg/L) and unloaded material (LC50 > 1000 μg/L). A second exposure test with sub-lethal concentrations (lower than 100 μg/L), using mussels, was carried out to assess biochemical changes caused by the tested compounds. Oxidative stress, detoxification and neurotransmission markers were not responsive; however, different antioxidant patterns were found with free ZnPT and loaded nanoclay exposures. Thus, the immobilization of the biocide ZnPT into nanoclays proved to be a promising efficient and eco-friendly anti-fouling strategy.
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Affiliation(s)
- Francisco Avelelas
- Smallmatek - Small Materials and Technologies, Lda, Rua Canhas, 3810-075, Aveiro, Portugal
| | - Roberto Martins
- Department of Biology and CESAM, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - Tânia Oliveira
- Smallmatek - Small Materials and Technologies, Lda, Rua Canhas, 3810-075, Aveiro, Portugal
| | - Frederico Maia
- Smallmatek - Small Materials and Technologies, Lda, Rua Canhas, 3810-075, Aveiro, Portugal
| | - Eliana Malheiro
- Smallmatek - Small Materials and Technologies, Lda, Rua Canhas, 3810-075, Aveiro, Portugal
| | - Amadeu M V M Soares
- Department of Biology and CESAM, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Susana Loureiro
- Department of Biology and CESAM, University of Aveiro, 3810-193, Aveiro, Portugal
| | - João Tedim
- CICECO-Aveiro Institute of Materials and Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193, Aveiro, Portugal
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Brito C, Stavroullakis A, Ferreira A, Li K, Oliveira T, Nogueira-Filho G, Prakki A. Extract of acai-berry inhibits osteoclast differentiation and activity. Arch Oral Biol 2016; 68:29-34. [DOI: 10.1016/j.archoralbio.2016.03.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 07/23/2015] [Accepted: 03/29/2016] [Indexed: 11/28/2022]
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Oliveira T, Sharkey MA, Engel PC, Khan AR. Crystal structure of a chimaeric bacterial glutamate dehydrogenase. Acta Crystallogr F Struct Biol Commun 2016; 72:462-6. [PMID: 27303899 PMCID: PMC4909246 DOI: 10.1107/s2053230x16007305] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 05/02/2016] [Indexed: 11/10/2022] Open
Abstract
Glutamate dehydrogenases (EC 1.4.1.2-4) catalyse the oxidative deamination of L-glutamate to α-ketoglutarate using NAD(P)(+) as a cofactor. The bacterial enzymes are hexameric, arranged with 32 symmetry, and each polypeptide consists of an N-terminal substrate-binding segment (domain I) followed by a C-terminal cofactor-binding segment (domain II). The catalytic reaction takes place in the cleft formed at the junction of the two domains. Distinct signature sequences in the nucleotide-binding domain have been linked to the binding of NAD(+) versus NADP(+), but they are not unambiguous predictors of cofactor preference. In the absence of substrate, the two domains move apart as rigid bodies, as shown by the apo structure of glutamate dehydrogenase from Clostridium symbiosum. Here, the crystal structure of a chimaeric clostridial/Escherichia coli enzyme has been determined in the apo state. The enzyme is fully functional and reveals possible determinants of interdomain flexibility at a hinge region following the pivot helix. The enzyme retains the preference for NADP(+) cofactor from the parent E. coli domain II, although there are subtle differences in catalytic activity.
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Affiliation(s)
- Tânia Oliveira
- School of Biochemistry and Immunology, Trinity College Dublin, Dublin 2, Ireland
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa (ITQB/UNL), Oeiras, Portugal
| | - Michael A. Sharkey
- School of Biomolecular and Biomedical Science, Conway Institute, University College Dublin, Belfield, Dublin 4, Ireland
| | - Paul C. Engel
- School of Biomolecular and Biomedical Science, Conway Institute, University College Dublin, Belfield, Dublin 4, Ireland
| | - Amir R. Khan
- School of Biochemistry and Immunology, Trinity College Dublin, Dublin 2, Ireland
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Costa R, Oliveira T, Pestana J, Costa D. PS-02-002 Male and female sexual desire and resting heart rate variability in a nonclinical sample. J Sex Med 2016. [DOI: 10.1016/j.jsxm.2016.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Oliveira P, Oliveira T, Gaspar S, Martinho D, Lopes T. P-05-010 Mechanical failure with inflatable penile prosthesis. J Sex Med 2016. [DOI: 10.1016/j.jsxm.2016.03.310] [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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Garagarza C, Valente A, Oliveira T, Caetano C. SUN-PP160: Which Nutritional Parameters Best Predict Survival in Hemodialysis Patients? Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30311-3] [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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Garagarza C, Valente A, Oliveira T, Caetano C, Ribeiro S, Silva A. SUN-PP184: The Role of Dialysis Shift in the Nutritional Status of Hemodialysis Patients. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30335-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Marques N, Lourenço Neto N, Fernandes AP, Rodini C, Hungaro Duarte M, Rios D, Machado MA, Oliveira T. Pulp tissue response to Portland cement associated with different radio pacifying agents on pulpotomy of human primary molars. J Microsc 2015; 260:281-6. [PMID: 26258985 DOI: 10.1111/jmi.12294] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 06/25/2015] [Indexed: 12/01/2022]
Abstract
The objective of this research was to evaluate the response of Portland cement associated with different radio pacifying agents on pulp treatment of human primary teeth by clinical and radiographic exams and microscopic analysis. Thirty mandibular primary molars were randomly divided into the following groups: Group I - Portland cement; Group II - Portland cement with iodoform (Portland cement + CHI3 ); Group III - Portland cement with zirconium oxide (Portland cement + ZrO2 ); and treated by pulpotomy technique (removal of a portion of the pulp aiming to maintain the vitally of the remaining radicular pulp tissue using a therapeutic dressing). Clinical and radiographic evaluations were recorded at 6, 12 and 24 months follow-up. The teeth at the regular exfoliation period were extracted and processed for histological analysis. Data were tested using statistical analysis with a significance level of 5%. The microscopic findings were descriptively analysed. All treated teeth were clinically and radiographically successful at follow-up appointments. The microscopic analysis revealed positive response to pulp repair with hard tissue barrier formation and pulp calcification in the remaining roots of all available teeth. The findings of this study suggest that primary teeth pulp tissue exhibited satisfactory biological response to Portland cement associated with radio pacifying agents. However, further studies with long-term follow-up are needed to determine the safe clinical indication of this alternative material for pulp therapy of primary teeth.
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Affiliation(s)
- N Marques
- Department of Paediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, São Paulo - SP, Brazil
| | - N Lourenço Neto
- Department of Paediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, São Paulo - SP, Brazil
| | - A P Fernandes
- Department of Paediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, São Paulo - SP, Brazil
| | - C Rodini
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, São Paulo - SP, Brazil
| | - M Hungaro Duarte
- Department of Operative Dentistry, Dental Materials and Endodontics, Dental School of Bauru, University of São Paulo, São Paulo - SP, Brazil
| | - D Rios
- Department of Paediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, São Paulo - SP, Brazil
| | - M A Machado
- Department of Paediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, São Paulo - SP, Brazil
| | - T Oliveira
- Department of Paediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, São Paulo - SP, Brazil
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Oliveira T, Mucha AP, Reis I, Rodrigues P, Gomes CR, Almeida CMR. Copper phytoremediation by a salt marsh plant (Phragmites australis) enhanced by autochthonous bioaugmentation. Mar Pollut Bull 2014; 88:231-238. [PMID: 25240741 DOI: 10.1016/j.marpolbul.2014.08.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 08/21/2014] [Accepted: 08/27/2014] [Indexed: 06/03/2023]
Abstract
Here we evaluated whether the potential of Phragmites australis to phytoremediate Cu contaminated sediments could be enhanced by bioaugmentation with an autochthonous microorganism consortium (AMC) that is resistant to Cu. Saltmarsh plants with sediment attached to their roots were collected, placed in vessels and kept in greenhouses, under tidal simulation. Sediments were contaminated with Cu and the AMC was added to half of the vessels. After two months, plants accumulated significant amounts of Cu (2-10 times more) in all tissues although in higher amounts (7-10 times more) in belowground structures. AMC addition increased Cu bioavailability (5-10%) in sediments leading to a decrease in belowground structures biomass. However, bioaugmentation increased Cu translocation, with higher amounts (2 times more) of Cu in the plant stems, without significant visual toxicity signs. Therefore, autochthonous bioaugmentation can increase Cu phytoextraction potential of P. australis, which can be a valuable strategy for the recovery and management of moderately impacted estuaries.
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Affiliation(s)
- T Oliveira
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal; Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - A P Mucha
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal
| | - I Reis
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal
| | - P Rodrigues
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal
| | - C R Gomes
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal; Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - C M R Almeida
- CIMAR/CIIMAR - Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Rua dos Bragas, 289, 4050-123 Porto, Portugal.
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Viciosa MT, Alves NM, Oliveira T, Dionísio M, Mano JF. Confinement Effects on the Dynamic Behavior of Poly(d,l-lactic Acid) upon Incorporation in α-Cyclodextrin. J Phys Chem B 2014; 118:6972-81. [DOI: 10.1021/jp5045783] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M. T. Viciosa
- CQFM
(Centro de Química-Física Molecular) and IN (Institute
of Nanoscience and Nanotechnology), Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal
| | - N. M. Alves
- 3Bs
Research Group (Biomaterials, Biodegradables and Biomimetics), University of Minho, Headquarters of
the European Institute of Excellence on Tissue Engineering and Regenerative
Medicine, AvePark, 4806-909, Taipas, Guimarães, Portugal
- ICVS/3Bs PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - T. Oliveira
- 3Bs
Research Group (Biomaterials, Biodegradables and Biomimetics), University of Minho, Headquarters of
the European Institute of Excellence on Tissue Engineering and Regenerative
Medicine, AvePark, 4806-909, Taipas, Guimarães, Portugal
- ICVS/3Bs PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - M. Dionísio
- REQUIMTE,
Departamento de Química, Faculdade de Ciências
e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - J. F. Mano
- 3Bs
Research Group (Biomaterials, Biodegradables and Biomimetics), University of Minho, Headquarters of
the European Institute of Excellence on Tissue Engineering and Regenerative
Medicine, AvePark, 4806-909, Taipas, Guimarães, Portugal
- ICVS/3Bs PT Government Associate Laboratory, Braga, Guimarães, Portugal
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Oliveira T, Botelho G, Alves NM, Mano JF. Inclusion complexes of α-cyclodextrins with poly(d,l-lactic acid): structural, characterization, and glass transition dynamics. Colloid Polym Sci 2013. [DOI: 10.1007/s00396-013-3127-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ferreira L, Rebocho S, Oliveira T, Sanches J, Paiva T. Dissociated sleep states in fibromyalgia: Prevalence and correlations. Sleep Med 2013. [DOI: 10.1016/j.sleep.2013.11.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Soares dos Santos MP, Ferreira JAF, Ramos A, Simões JAO, Morais R, Silva NM, Santos PM, Reis MJCS, Oliveira T. Instrumented hip implants: electric supply systems. J Biomech 2013; 46:2561-71. [PMID: 24050511 DOI: 10.1016/j.jbiomech.2013.08.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [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: 04/18/2013] [Revised: 07/20/2013] [Accepted: 08/13/2013] [Indexed: 12/14/2022]
Abstract
Instrumented hip implants were proposed as a method to monitor and predict the biomechanical and thermal environment surrounding such implants. Nowadays, they are being developed as active implants with the ability to prevent failures by loosening. The generation of electric energy to power active mechanisms of instrumented hip implants remains a question. Instrumented implants cannot be implemented without effective electric power systems. This paper surveys the power supply systems of seventeen implant architectures already implanted in-vivo, namely from instrumented hip joint replacements and instrumented fracture stabilizers. Only inductive power links and batteries were used in-vivo to power the implants. The energy harvesting systems, which were already designed to power instrumented hip implants, were also analyzed focusing their potential to overcome the disadvantages of both inductive-based and battery-based power supply systems. From comparative and critical analyses of the methods to power instrumented implants, one can conclude that: inductive powering and batteries constrain the full operation of instrumented implants; motion-driven electromagnetic energy harvesting is a promising method to power instrumented passive and active hip implants.
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Affiliation(s)
- Marco P Soares dos Santos
- TEMA/UA-Centre for Mechanical Technology and Automation, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; DEM/UA-Department of Mechanical Engineering, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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Oliveira GA, Uceda S, Oliveira T, Fernandes A, Garcia-Marques T, Oliveira RF. Threat perception and familiarity moderate the androgen response to competition in women. Front Psychol 2013; 4:389. [PMID: 23847564 PMCID: PMC3701856 DOI: 10.3389/fpsyg.2013.00389] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2013] [Accepted: 06/11/2013] [Indexed: 11/13/2022] Open
Abstract
Social interactions elicit androgen responses whose function has been posited to be the adjustment of androgen-dependent behaviors to social context. The activation of this androgen response is known to be mediated and moderated by psychological factors. In this study we tested the hypothesis that the testosterone (T) changes after a competition are not simply related to its outcome, but rather to the way the subject evaluates the event. In particular we tested two evaluative dimensions of a social interaction: familiarity with the opponent and the subjective evaluation of the outcome as threat or challenge. Challenge/threat occurs in goal relevant situations and represent different motivational states arising from the individuals' subjective evaluation of the interplay between the task demands and coping resources possessed. For challenge the coping resources exceed the task demands, while threat represents a state where coping resources are insufficient to meet the task demands. In this experiment women competed in pairs, against a same sex opponent using the number tracking test as a competitive task. Losers appraised the competition outcome as more threatening than winners, and displayed higher post-competition T levels than winners. No differences were found either for cortisol (C) or for dehydroepiandrosterone. Threat, familiarity with the opponent and T response were associated only in the loser condition. Moderation analysis suggests that for the women that lost the competition the effect of threat on T is moderated by familiarity with the opponent.
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Affiliation(s)
- Gonçalo A Oliveira
- Unidade de Investigação em Eco-Etologia, Instituto Superior de Psicologia Aplicada - Instituto Universitário Lisbon, Portugal
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Hajjar L, Galas F, Goto D, Tavares A, Santos M, Freitas A, Oliveira T, Tonini P, Cavichio L, Bazan M, Almeida J, Cavalcante M, Fukushima J, Vieira S, Osawa E. Outcome of intensive care treatment for lung cancer patients. Crit Care 2013. [PMCID: PMC3643146 DOI: 10.1186/cc12407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Abstract
The aims of the present study were to identify (i) home advantage in elite handball according to the quality of opponent, (ii) the game periods where the teams score more goals, and (iii) the game statistics associated with the teams' success according to the game's location. The sample comprised 480 regular season games (2007–2009) from the Spanish Professional Handball League. The goals scored and shot effectiveness (6 m, 7 m, 9 m and fast breaks) were analyzed for each 5-min. game period in games between players of balanced and unbalanced quality. The home advantage was 64%, with higher values (71%) in balanced and lower values (55%) in unbalanced games. The 5-min. game periods in which teams scored more goals were the last 5-min. period of each half, especially in the second half. The effectiveness was only different in shots closer to the goal (6 m), which supports the territoriality theory of home advantage.
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Affiliation(s)
- T. Oliveira
- Research Center for Sports Sciences, Health and Human Development, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - M. Gómez
- Faculty of Physical Activity and Sport Sciences, Polytechnic University of Madrid, Spain
| | - J. Sampaio
- Research Center for Sports Sciences, Health and Human Development, University of Trás-os-Montes e Alto Douro, Vila Real, Portugal
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Oliveira T, Panjikar S, Carrigan JB, Hamza M, Sharkey MA, Engel PC, Khan AR. Crystal structure of NAD+-dependent Peptoniphilus asaccharolyticus glutamate dehydrogenase reveals determinants of cofactor specificity. J Struct Biol 2011; 177:543-52. [PMID: 22068154 DOI: 10.1016/j.jsb.2011.10.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Revised: 10/21/2011] [Accepted: 10/24/2011] [Indexed: 10/16/2022]
Abstract
Glutamate dehydrogenases (EC 1.4.1.2-4) catalyse the oxidative deamination of l-glutamate to α-ketoglutarate using NAD(P) as a cofactor. The bacterial enzymes are hexamers and each polypeptide consists of an N-terminal substrate-binding (Domain I) followed by a C-terminal cofactor-binding segment (Domain II). The reaction takes place at the junction of the two domains, which move as rigid bodies and are presumed to narrow the cleft during catalysis. Distinct signature sequences in the nucleotide-binding domain have been linked to NAD(+) vs. NADP(+) specificity, but they are not unambiguous predictors of cofactor preferences. Here, we have determined the crystal structure of NAD(+)-specific Peptoniphilus asaccharolyticus glutamate dehydrogenase in the apo state. The poor quality of native crystals was resolved by derivatization with selenomethionine, and the structure was solved by single-wavelength anomalous diffraction methods. The structure reveals an open catalytic cleft in the absence of substrate and cofactor. Modeling of NAD(+) in Domain II suggests that a hydrophobic pocket and polar residues contribute to nucleotide specificity. Mutagenesis and isothermal titration calorimetry studies of a critical glutamate at the P7 position of the core fingerprint confirms its role in NAD(+) binding. Finally, the cofactor binding site is compared with bacterial and mammalian enzymes to understand how the amino acid sequences and three-dimensional structures may distinguish between NAD(+) vs. NADP(+) recognition.
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Affiliation(s)
- Tânia Oliveira
- School of Biochemistry and Immunology, Trinity College Dublin, Dublin 2, Ireland
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Vaz AP, Amorim A, Espinar MJ, Oliveira T, Pereira JM, Paiva JA. [Positive bronchoalveolar lavage and quantitative cultures results in suspected late-onset ventilator associated penumonia evaluation--retrospective study]. Rev Port Pneumol 2011; 17:117-23. [PMID: 21549670 DOI: 10.1016/j.rppneu.2011.03.002] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2010] [Accepted: 11/16/2010] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION Bronchoalveolar lavage (BAL) with quantitative cultures has been used in order to increase ventilator associated pneumonia (VAP) diagnosis specificity, although the accurate technique for this entity diagnosis remains controversial. OBJECTIVES To evaluate the influence of using positive BAL and quantitative cultures results in microbiologic diagnosis and treatment of patients with suspected late VAP and prior antibiotherapy. MATERIAL AND METHODS Retrospective analysis of intensive care unit (UCI) patients, during a one year period, with clinical suspicion of late VAP and prior use of antibiotics that presented a growth in BAL cultures. RESULTS Of 243 BAL performed, there were 71 (29.2%) positive cultures (60 patients, 76.7% male, 54 ± 19 years). BAL was done after 13 days (median) of invasive mechanical ventilation, 11 days of ICU antibiotherapy and in the day in which a new antibiotic for VAP suspicion was started. Colony forming units (CFU)/ml count was performed in 71.8% and endotracheal aspirate (ETA) simultaneously collected for qualitative analysis in 85.9%. Therapeutic approach was changed in 38.0%: correction (16.9%), de-escalation (12.7%) and directed antibiotherapy start (8.4%). Therapeutic changes were made in the presence of CFU > 10(4) in 84.2% and in agreement with ETA in 70.8%. In cases in which antibiotherapy was maintained (62.0%), quantitative cultures would have allowed de-escalation in 9.1%. Changes in prescription were more frequent when CFU was > 10(4) (48.5%), comparing with situations in which counts were lower and BAL analysis was qualitative (28.9%), p = 0.091. There were no significant differences between patients submitted to different therapeutic approaches concerning to ICU mortality or length of stay. CONCLUSION In late onset VAP, positive BAL and quantitative cultures allowed therapeutic changes, leading to antibiotic adequacy and consumption reduction, which can however be maximised.
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Affiliation(s)
- A P Vaz
- Serviço de Pneumologia, Hospital de São João - EPE, Porto, Portugal.
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Maniero F, Oliveira T, Padoveze A, Lo Prete A, Maranhão R. Abstract: P426 EFFECT OF DIETARY SUPPLEMENTATION WITH SATURATED, MONOUNSATURATED OR POLYUNSATURATED FATTY ACID-RICH OILS ON THE TRANSFER OF LIPIDS TO HIGH-DENSITY LIPOPROTEIN (HDL) IN HAMSTERS. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)70721-4] [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: 10/20/2022]
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Pio CA, Legrand M, Oliveira T, Afonso J, Santos C, Caseiro A, Fialho P, Barata F, Puxbaum H, Sanchez-Ochoa A, Kasper-Giebl A, Gelencsér A, Preunkert S, Schock M. Climatology of aerosol composition (organic versus inorganic) at nonurban sites on a west-east transect across Europe. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd008038] [Citation(s) in RCA: 179] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Legrand M, Preunkert S, Oliveira T, Pio CA, Hammer S, Gelencsér A, Kasper-Giebl A, Laj P. Origin of C2–C5dicarboxylic acids in the European atmosphere inferred from year-round aerosol study conducted at a west-east transect. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jd008019] [Citation(s) in RCA: 114] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Rodrigues ML, Oliveira T, Matias PM, Martins IC, Valente FMA, Pereira IAC, Archer M. Crystal structure of the membrane-bound complex cytochrome cnitrite reductase. Acta Crystallogr A 2006. [DOI: 10.1107/s0108767306099417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Rodrigues ML, Oliveira T, Matias PM, Martins IC, Valente FMA, Pereira IAC, Archer M. Crystallization and preliminary structure determination of the membrane-bound complex cytochrome c nitrite reductase from Desulfovibrio vulgaris Hildenborough. Acta Crystallogr Sect F Struct Biol Cryst Commun 2006; 62:565-8. [PMID: 16754983 PMCID: PMC2243080 DOI: 10.1107/s1744309106016629] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2006] [Accepted: 05/05/2006] [Indexed: 11/10/2022]
Abstract
The cytochrome c nitrite reductase (cNiR) isolated from Desulfovibrio vulgaris Hildenborough is a membrane-bound complex formed of NrfA and NrfH subunits. The catalytic subunit NrfA is a soluble pentahaem cytochrome c that forms a physiological dimer of about 120 kDa. The electron-donor subunit NrfH is a membrane-anchored tetrahaem cytochrome c of about 18 kDa molecular weight and belongs to the NapC/NirT family of quinol dehydrogenases, for which no structures are known. Crystals of the native cNiR membrane complex, solubilized with dodecylmaltoside detergent (DDM), were obtained using PEG 4K as precipitant. Anomalous diffraction data were measured at the Swiss Light Source to 2.3 A resolution. Crystals belong to the orthorhombic space group P2(1)2(1)2(1), with unit-cell parameters a = 79.5, b = 256.7, c = 578.2 A. Molecular-replacement and MAD methods were combined to solve the structure. The data presented reveal that D. vulgaris cNiR contains one NrfH subunit per NrfA dimer.
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Affiliation(s)
- M. L. Rodrigues
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, ITQB-UNL, Av. República, Apt. 127, 2781-901 Oeiras, Portugal
| | - T. Oliveira
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, ITQB-UNL, Av. República, Apt. 127, 2781-901 Oeiras, Portugal
| | - P. M. Matias
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, ITQB-UNL, Av. República, Apt. 127, 2781-901 Oeiras, Portugal
| | - I. C. Martins
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, ITQB-UNL, Av. República, Apt. 127, 2781-901 Oeiras, Portugal
| | - F. M. A. Valente
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, ITQB-UNL, Av. República, Apt. 127, 2781-901 Oeiras, Portugal
| | - I. A. C. Pereira
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, ITQB-UNL, Av. República, Apt. 127, 2781-901 Oeiras, Portugal
| | - M. Archer
- Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, ITQB-UNL, Av. República, Apt. 127, 2781-901 Oeiras, Portugal
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Oliveira R, Gonçalves D, Jordão J, Ros A, Hirschenhauser K, Fagundes T, Oliveira T, Andrade R, Saraiva J, Silva A, Castro N, Costa L. Luis A. Carneiro. Acta Ethol 2003. [DOI: 10.1007/s10211-003-0073-x] [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: 10/26/2022]
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Oliveira T, Barbosa C, Neves E, Guimarães A, Sexto C, Cruz R. [Cervical spondylodiscitis in an infant]. An Esp Pediatr 2000; 52:398-400. [PMID: 11003937] [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: 02/17/2023]
Abstract
Spondylitis in childhood is rare, presenting a great variety of symptoms that are related to the child s age and to the site of the inflammatory process. We present the case of a nine-month-old infant, who presented to the emergency department with a torticollis of six weeks evolution. The diagnosis of spondylitis (C6-C7) was confirmed by MRI. Intravenous antibiotic therapy was administered. The patient showed complete regression of symptoms and imaging tests were normal. The rarity of this disease in patients in this age group, as well as the site and form of presentation are emphasised as is the importance of diagnosing this disease to prevent permanent neurological injuries or bone deformities.
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Affiliation(s)
- T Oliveira
- Servicio de Pediatría, Hospital Maria Pia, Porto, Portugal
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Abstract
OBJECTIVE To evaluate fetal fibronectin as a predictor of premature delivery in twin pregnancies. METHOD Cervicovaginal secretions were obtained from 52 pregnant women with twin pregnancies between 24 and 34 weeks of gestation. The secretions were analyzed to detect the presence of fetal fibronectin by immediate-reading membrane test. The correlation between the presence of fetal fibronectin and preterm birth was evaluated. In addition, cervical dilatation and effacement were evaluated with each sampling. RESULT The sensitivity, specificity, positive predictive value and negative predictive value to predict preterm delivery were 89.3, 50.0, 67.6, and 80.0%, respectively. A positive fetal fibronectin result was associated with a relative risk (RR) for preterm birth of 3.4 (95% CI, 1.2-9.5). A positive fetal fibronectin test associated with cervical dilatation or effacement increased the RR for preterm birth to 4.3 and 7.7, respectively, when compared with those with negative test and without cervical dilatation and effacement. CONCLUSION Fetal fibronectin in the cervicovaginal secretions of patients with twin pregnancies is a sensitive predictor of preterm delivery. However, because of its low specificity, the fetal fibronectin test should be evaluated along with cervical changes for better identification of twins likely to develop preterm labor.
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Affiliation(s)
- T Oliveira
- Hospital Maternidade, Leonor Mendes de Barros, São Paulo, Brazil
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