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1.
Nutrients ; 16(7)2024 Mar 23.
Artigo em Inglês | MEDLINE | ID: mdl-38612961

RESUMO

Sodium, although essential for life, is a key factor in changes in vascular function and cardiovascular disease when consumed in excess. Sarcocornia spp., a halophyte plant with many nutritional benefits, presents itself as a promising substitute for the consumption of purified salt. Matrix metalloproteinases (MMPs) 2 and 9 are widely studied due to their action in physiological processes and as biomarkers at the diagnostic level due to their increased expression in inflammatory processes. This study aimed to evaluate whether replacing salt with Sarcocornia perennis (S. perennis) powder in healthy young people leads to an improvement in biochemical profiles and the attenuation of MMP-2 and MMP-9 activity. In the present study, 30 participants were randomized into a control group that consumed salt and an intervention group that replaced salt with powdered S. perennis. The evaluation of the biochemical parameters was carried out by the spectrophotometry method, and the evaluation of MMP activity was carried out by zymography. A significant decrease was observed in the intervention group in total cholesterol, high-density lipoprotein cholesterol (HDL-c), and creatinine (p-value ≤ 0.05), along with lower but not significantly different mean values of triglycerides. Regarding MMP activity after the intervention, a lower mean value was observed for MMP-9 activity, with there being higher mean values for MMP-2 activity, both with p-values ≥ 0.05. The results confirmed that the consumption of S. perennis is a beneficial choice for health regarding the lipid profile. The evaluation of MMP activity indicated the potential of S. perennis in the regulation of MMP-9 activity in healthy individuals, along with the need for the further study of these proteases in individuals with pathologies.


Assuntos
Gelatinases , Metaloproteinase 9 da Matriz , Humanos , Adolescente , Metaloproteinase 2 da Matriz , Cloreto de Sódio , Cloreto de Sódio na Dieta , HDL-Colesterol , Endopeptidases
2.
Healthcare (Basel) ; 12(5)2024 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-38470620

RESUMO

In recent years, the world's aging population has increased, contributing to the development of age-related pathologies, which have been aggravated by physical inactivity and excessive fat intake. This study aimed to evaluate the effect of implementing a nutritional program (control group-CG) combined with exercise (intervention group-IG) on the inflammatory profile, MMPs, and TIMPs in a group of 34 elderly participants (IG, n = 18; CG, n = 16). Participants underwent a full multidisciplinary diagnostic evaluation (T0), with the gathering of clinical information and biochemical and hematological determinations being re-evaluated eight weeks later (T1). A diet manual was made, which provided a selection of different types of diets resulting from the nutritional needs of the different users at the center. The aerobic exercise consisted of two sessions per week with a total duration of 1 h. The laboratory evaluation was performed by slot blot. Statistical analysis included a paired sample t-test and Spearman's correlation coefficient. We observed that in the IG, there was a significant increase at T1 of TNF-α (p < 0.05) and MMP-2 (p < 0.05), without changes in IL-6 and MMP-9, showing that the intervention did not cause an exacerbated inflammatory response in exercised elderly people. The intervention program implemented showed potential to contribute to better active aging strategies, taking advantage of the known benefits of exercise without inducing a harmful inflammatory response in elderly participants.

3.
JSES Rev Rep Tech ; 4(1): 15-19, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38323203

RESUMO

Background: Arthroscopic rotator cuff tear repair techniques used to rely on knot-tying double row techniques, but the advent of knotless transosseous equivalent procedures introduced a new variable to the debate. The purpose of this study is to determine which technique is associated with lower retear rates. For its' biomechanical advantages, the authors' hypothesis is that knotless techniques would have lower retear rates. Methods: A systematic literature search was performed via PubMed and Google Scholar by two independent reviewers following PRISMA guidelines. Papers reporting retear rates after rotator cuff arthroscopic repair using knotted double-row or knotless transosseous equivalent techniques, evaluated by magnetic resonance imaging at least 6 months after surgery, were retrieved. Studies that do not differentiate between techniques and nonclinical reports were excluded. Eligible data was analyzed with Review Manager 5.4.1 using Mantel-Haenszel statistics with a fixed effect model. Results: The authors' initial literature search retrieved 511 reports. After the selection process, 24 articles were available for this review, and 9 were eligible for meta-analysis. A comparison of 1888 subjects from noncomparative reports and a meta-analysis of reports in which both techniques were studied could not show a statistically significant difference in technique retear rates. Discussion and conclusion: The current report revealed no significant difference in retear rates between the two arthroscopic repair techniques. Studies' quality was a limitation. Only two reported level 1 evidence. This review could not control variables such as cuff tear size, tissue quality, or individual comorbidities. Larger and longer follow-up studies could be helpful to further investigate this topic.

4.
Insights Imaging ; 14(1): 55, 2023 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-37005914

RESUMO

PURPOSE: To analyse the existing radiation protection (RP) education and training (E&T) capabilities in the European Union and identify associated needs, problems and challenges. METHOD: An online survey was disseminated via the EURAMED Rocc-n-Roll consortium network and prominent medical societies in the field of radiological research. The survey sections analyse the RP E&T during undergraduate, residency/internship and continuous professional development; RP E&T problems and legal implementation. Differences were analysed by European geographic regions, profession, years of professional experience and main area of practice/research. RESULTS: The majority of the 550 respondents indicated that RP topics are part of undergraduate curricula in all courses for their profession and country (55%); however, hands-on practical training is not included according to 30% of the respondents. The lack of E&T, practical aspects in current E&T, and mandatory continuing E&T were considered the major problems. The legal requirement that obtained higher implementation score was the inclusion of the practical aspects of medical radiological procedures on education (86%), and lower score was obtained for the inclusion of RP E&T on medical and dental school curriculums (61%). CONCLUSIONS: A heterogeneity in RP E&T during undergraduate, residency/internship and continuous professional development is evident across Europe. Differences were noted per area of practice/research, profession, and European geographic region. A large variation in RP E&T problem rating was also obtained.

5.
Nutr Health ; 29(1): 31-36, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35971308

RESUMO

Background: Skinfold callipers are often used in clinical practice to estimate subcutaneous adipose tissue thickness. Recently, LipoTool emerged as a potential digital system to measure skinfolds, however comparisons with competing equipment are lacking. Aim: The aim of this study was to test the agreement between two competing skinfold callipers (digital and mechanical). Methods: The sample included 22 healthy male adult participants. A certified observer measured eight skinfolds twice using different skinfold callipers (digital and mechanical). Differences between equipment were tested using Wilcoxon signed rank test The distribution of error was examined using the normality test Results: Differences between skinfold callipers were significantly in five skinfolds: triceps (Z = -3.546; P < 0.001), subscapular (Z = -3.984; P < 0.001), suprailiac (Z = 3.024; P = 0.002), supraspinale (Z = 3.885; P < 0.001), abdominal (Z z = -2.937; P = 0.003), thigh (Z = -2.224; P = 0.026) and calf (Z = -2.052; P = 0.040). Differences between callipers were constant. Conclusions: Mechanical and digital callipers tended to record different values of skinfold thickness. Clinical examination should consider equipment-related variation in fat mass estimation.


Assuntos
Perna (Membro) , Músculo Esquelético , Adulto , Humanos , Masculino , Dobras Cutâneas , Extremidade Inferior
6.
Biology (Basel) ; 11(11)2022 Nov 21.
Artigo em Inglês | MEDLINE | ID: mdl-36421395

RESUMO

It is recognized that the spread of antibiotic resistance (AR) genes among aquatic environments, including aquaculture and the human environment, can have detrimental effects on human and animal health and the ecosystem. Thus, when transmitted to the human microbiome or pathogens, resistance genes risk human health by compromising the eventual treatment of infections with antibiotic therapy. This study aimed to define the resistance profile of aquaculture farms and their potential risk for spreading. Twenty-four sediments from oyster and gilthead sea bream aquaculture farms located in three Portuguese river estuaries (17 sediments from Sado, 4 from Aveiro, and 3 from Lima) were studied by comparative metagenomic analysis. The computation of the diversity of genes conferring resistance per antibiotic class revealed a significant increase in aminoglycosides, beta-lactams, disinfectants, quinolones, and tetracyclines counts. In all geographic locations under study, the most diverse AR genes confer resistance to the macrolides, tetracyclines and oxazolidinones classes, all of which are medically important for human and animal therapies, as well as resistance to disinfectants. The diversity of mobile genetic elements correlated with the number of AR genes such as tetracyclines, suggesting that AR could be easily mobilized among bacterial genomes and microbiomes.

7.
Insights Imaging ; 13(1): 142, 2022 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-36057698

RESUMO

BACKGROUND: A Strengths, weaknesses, opportunities and threats analysis was performed to understand the status quo of education and training in radiation protection (RP) and to develop a coordinated European approach to RP training needs based on stakeholder consensus and existing activities in the field. Fourteen team members represented six European professional societies, one European voluntary organisation, two international healthcare organisations and five professions, namely: Medical Physicists; Nuclear Medicine Physicians; Radiologists; Radiation Oncologists and Radiographers. Four subgroups analysed the "Strengths", "Weaknesses", "Opportunities" and "Threats" related to E&T in RP developed under previous European Union (EU) programmes and on the Guidelines on Radiation Protection Education and Training of Medical Professionals in the EU. RESULTS: Consensus agreement identified four themes for strengths and opportunities, namely: (1) existing structures and training recommendations; (2) RP training needs assessment and education & training (E&T) model(s) development; (3) E&T dissemination, harmonisation, and accreditation; (4) financial supports. Weaknesses and Threats analysis identified two themes: (1) awareness and prioritisation at a national/global level and (2) awareness and prioritisation by healthcare professional groups and researchers. CONCLUSIONS: A lack of effective implementation of RP principles in daily practice was identified. EuRnR strategic planning needs to consider processes at European, national and local levels. Success is dependent upon efficient governance structures and expert leadership. Financial support is required to allow the stakeholder professional agencies to have sufficient resources to achieve a pan European radiation protection training network which is sustainable and accredited across multiple national domains.

8.
Geriatrics (Basel) ; 7(3)2022 Jun 13.
Artigo em Inglês | MEDLINE | ID: mdl-35735769

RESUMO

Oxidative stress is defined as the imbalance between reactive species and antioxidant agents. One of the effects of oxidative stress is the normal process of cellular aging that stems from the accumulation of tissue damage. Epidemiological studies show that regular physical exercise prevents the injuries caused by aging. The objective was to evaluate whether the practice of hydrotherapy, in an elderly population, positively influenced the activity of the enzymes superoxide dismutase, glutathione peroxidase and reductase that act by reducing reactive species in the body. The study involved 37 participants aged ≥ 60 years, of both sexes, divided into experimental and control groups. The experimental group performed 15 hydrotherapy sessions. Enzyme activity was evaluated in two moments: T0-before the first session, and T1-after the last session, with blood collections conducted in both. In T1, there was a significant increase vs. T0 of glutathione peroxidase activity (57.72 ± 19.99 vs. 48.14 ± 17.22 U/g Hb) and glutathione reductase activity (100.18 ± 30.85 vs. 78.44 ± 21.26 U/L). Both sexes tended to show higher values at T1. We concluded that hydrotherapy proved to be a positive stimulus for the enzymatic antioxidant activity of the elderly, suggesting that a regular and moderate practice of physical exercise induces better and higher quality of life.

9.
Complement Ther Clin Pract ; 46: 101541, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35124475

RESUMO

BACKGROUND: The estimated number of people living with anxiety disorders worldwide is around 264 million and is estimated to have worsened with the recent pandemic of COVID-19. Acupuncture has shown to have excellent therapeutic effects in reducing anxiety. DESIGN: Double-blinded randomized controlled clinical trial with 56 participants (21-82 years) with anxiety diagnosed by 3 different anxiety scales (BAI, GAD-7 and OASIS). A 30-min acupuncture session was applied once a week for 10 weeks. AIMS: Evaluate the effectiveness of acupuncture and electroacupuncture in the treatment of anxiety to verify if: (1) People with high anxiety report reduced scores after 5 and 10 sessions; (2) Salivary cortisol levels accompanied the reduced scores; (3) Electroacupuncture treatment is more effective than acupuncture; (4) the treatments is independent of anxiolytic medication. METHODS: Volunteers were randomized into 3 groups (control, acupuncture, and electroacupuncture). The results were analyzed by anxiety scales and salivary cortisol tests. RESULTS: The findings show an improvement in anxiety, assessed by BAI, GAD-7 and OASIS, after the 5th session of acupuncture (p < 0.05) and electroacupuncture (p < 0.05) and the 10th session for both techniques (p < 0.001). The salivary cortisol values measured in the morning followed this pattern (p < 0.05), although the reduction of the night cortisol values was not statistically significant. Electroacupuncture and acupuncture show similar efficacy. The positive effect after the treatments is independent of anxiolytic medication (p < 0.001). CONCLUSION: Acupuncture and electroacupuncture are effective in treating anxiety on their own or as adjuncts to pharmacological therapy. TRIAL REGISTRATION NUMBER: NºP445-08/2017 (Unidade de Investigação em Ciências da Saúde).


Assuntos
Terapia por Acupuntura , COVID-19 , Eletroacupuntura , Terapia por Acupuntura/métodos , Ansiedade/terapia , Transtornos de Ansiedade , Eletroacupuntura/métodos , Humanos , SARS-CoV-2 , Resultado do Tratamento
10.
Early Interv Psychiatry ; 15(1): 206-212, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-32052567

RESUMO

Comprehensive social cognition training programs have been effective to improve social cognition in people with chronic schizophrenia, although there is insufficient quality evidence for recent-onset psychosis. The aim of this study was to assess the effects of Social Cognition and Interaction Training (SCIT) in a sample of recent-onset schizophrenia outpatients. Sixteen participants who had their first psychotic episode for less than 2 years were randomly allocated to the SCIT group during 20 weeks (weekly sessions) or to a psychoeducation group and completed baseline and post-training assessment for cognitive biases, social cognition, clinical symptoms and functioning. Permutation-based analysis revealed improvements in overall functioning (P = 0.036) and blame score (P = 0.070) in the SCIT group compared to the psychoeducation intervention, with large effect sizes (d = 1.438 and d = 1.204, respectively). There were also large effect sizes for hostility, emotion recognition, social perception, positive and total symptoms (d = 0.833-1.158). These results suggest that SCIT may be an effective tool to improve attributional biases and functional outcomes in recent-onset schizophrenia outpatients. Future controlled trials with larger sample size and follow-up assessments should be developed to further understand effective intervention outcomes for this population.


Assuntos
Terapia Cognitivo-Comportamental , Transtornos Psicóticos , Esquizofrenia , Cognição , Humanos , Esquizofrenia/terapia , Cognição Social , Percepção Social
11.
Colloids Surf B Biointerfaces ; 196: 111354, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32971440

RESUMO

The development of targeted delivery systems can improve the selectivity of cancer drugs. Additionally, a system that promotes the controlled delivery of the drug triggered by an external stimulus in the exact target tissue is highly desirable. Regarding the light stimulus, the NIR window (650-950 nm) is the most suitable due to its higher capacity of penetration in human tissues and less harmful effects on normal cells. In this work, new red-light-responsive nanoparticles for doxorubicin delivery were developed. The nanoparticles were based on cleavable di-block copolymers of poly(ethylene glycol) (PEG) and poly(lactic acid) (PLA) linked by a red-light sensitive segment (1,2-bis(2-hydroxyethylthio)ethylene, BHETE). The PEG-BHETE-PLA copolymers were synthesized under mild conditions and exhibited a narrow polydispersity. The nanoparticles presented a size between 53 and 133 nm, with a doxorubicin loading capacity between 1.2 and 4.4 wt%. Release study of the encapsulated doxorubicin confirms the light-triggered nanoparticle disassembly process. In vitro cytotoxicity tests in MCF7 cell line, for the light-triggered nanoparticles, showed a decrease in cancer cells' viability higher than 25% compared to non-irradiated cells. Due to the promising results obtained with the light-sensitive PEG-BHETE-PLA nanoparticles, these materials have great potential to be used in drug delivery systems for cancer therapy.


Assuntos
Nanopartículas , Neoplasias , Portadores de Fármacos , Sistemas de Liberação de Medicamentos , Humanos , Neoplasias/tratamento farmacológico , Tamanho da Partícula , Polietilenoglicóis , Polímeros
12.
Mar Drugs ; 18(1)2019 Dec 24.
Artigo em Inglês | MEDLINE | ID: mdl-31878353

RESUMO

Changes in lipid profile constitute the main risk factor for cardiovascular diseases. Algae extracted carrageenans are long-chain polysaccharides and their ability to form gels provides for the formation of vegetable jelly. The objective was to evaluate the bioactive potential of carrageenan (E407) in the lipid profile, after ingestion of jelly. A total of 30 volunteers of both sexes, aged 20-64 years and with total cholesterol (TC) values ≥200 mg/dL, who ingested 100 mL/day of jelly for 60 days, were studied. All had two venous blood collections: before starting the jelly intake and after 60 days. At both times, TC, high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C) and triglycerides (TG), were evaluated using commercial kits and spectrophotometer. The statistics were performed using the SPSS 25.0 software and p < 0.05 were considered statistically significant. Serum values after 60 days of jelly intake revealed a statistically significant decrease in TC levels (5.3%; p = 0.001) and LDL-C concentration (5.4%; p = 0.048) in females. The daily intake of vegetable jelly for 60 days showed a reduction in serum TC and LDL-C levels in women, allowing us to conclude that carrageenan has bioactive potential in reducing TC concentration.


Assuntos
Carragenina/farmacologia , Hipercolesterolemia/tratamento farmacológico , Metabolismo dos Lipídeos/efeitos dos fármacos , Carragenina/química , Carragenina/uso terapêutico , Feminino , Humanos , Lipídeos , Masculino , Pessoa de Meia-Idade , Verduras/química , Adulto Jovem
13.
Rev. bras. cir. plást ; 34(4): 477-484, oct.-dec. 2019. ilus, tab
Artigo em Inglês, Português | LILACS | ID: biblio-1047906

RESUMO

Introdução: Sabe-se que o câncer de mama é hoje a segunda neoplasia mais frequente entre as mulheres, as quais são submetidas desde a tratamentos clínicos até cirúrgicos mutilantes da mama. Ter mamas bonitas e harmoniosas é um direito legítimo, sendo assim o conceito de reconstrução mamária e do complexo areolo papilar se torna importante na reinserção social feminina. Este estudo visa apresentar uma técnica eficaz de reconstrução areolar, utilizando enxerto cutâneo livre palpebral bilateral, demonstrando sua eficácia através de resultados fotográficos, comparação com outras técnicas já descritas e questionários de satisfação dos pacientes. Resultados: Foram avaliados, retrospectivamente, 50 pacientes operados de reconstrução areolar com enxerto de pele palpebral e outras técnicas já descritas, operados por um único cirurgião sênior. O grupo de pacientes operados com pele palpebral não obtiveram diferenças significativas dentro da análise de resultados, comparados com outras técnicas de reconstrução. Houve boa satisfação por parte dos pacientes, quanto ao resultado das cirurgias das aréolas. Conclusão: O estudo obteve baixos índices de complicações, apresentando-se como boa opção terapêutica, dentro do arsenal cirúrgico de reconstrução areolar.


Introduction: Breast cancer is currently the second most common neoplasm among women who undergo clinical treatments and breast-mutilating surgeries. Having beautiful and harmonious breasts is a legitimate right, so the concept of reconstructing the breast and nipple-areolar complex becomes important in female social reinsertion. This study aimed to present an effective technique of areolar reconstruction using free bilateral eyelid skin grafts and demonstrate its effectiveness through photographic results, comparison with previously described techniques, and patient satisfaction questionnaires. Results: The authors retrospectively evaluated 50 patients who underwent areolar reconstruction with eyelid skin grafts and other techniques performed by a single senior surgeon. Patients who underwent eyelid skin graft surgery did not achieve significantly different results from those who underwent other reconstruction techniques. Patients who underwent areola surgeries reported good satisfaction. Conclusion: The study revealed low complication rates and demonstrated that the use of eyelid skin is a good therapeutic option for areolar reconstruction.


Assuntos
Humanos , Feminino , História do Século XXI , Pacientes , Pele , Transplante , Mama , Satisfação do Paciente , Procedimentos de Cirurgia Plástica , Estética , Pálpebras , Mamilos , Transplante/métodos , Transplante/estatística & dados numéricos , Mama/cirurgia , Satisfação do Paciente/estatística & dados numéricos , Procedimentos de Cirurgia Plástica/métodos , Pálpebras/cirurgia , Mamilos/cirurgia
14.
Braz J Cardiovasc Surg ; 33(5): 469-475, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30517255

RESUMO

OBJECTIVE: To evaluate the sequential changes of hemodynamic and metabolic parameters in patients who underwent aorta no-touch off-pump coronary artery bypass surgery (OPCAB). METHODS: Prospective study involving twenty-seven consecutive patients who underwent aorta no-touch OPCAB. The FloTrac/PreSep/Vigileo™ system (Edwards Lifesciences) was used to continuously record heart rate (HR), mean arterial blood pressure (MABP), central venous pressure (CVP), continuous cardiac index (FCI), stroke volume (SV), stroke volume variation (SVV), and central venous oxygen saturation (ScvO2). The parameters were assessed 5 min before, during and 5 min after each anastomosis (left anterior descending [LAD], posterior descending [PD], obtuse marginal [OM] and diagonal [Dg]). Postoperative lactate was also evaluated. RESULTS: There was no significant change in HR and MABP for all anastomoses, except for MABP during PD grafting (-10.1±2.7 mmHg, P=0.03). There was a significant decrease in ScvO2 only during PD and OM anastomoses (-9.4±0.4, P=0.03; -4.4±0.4, P=0.02; respectively). CVP drop after PD manipulation was strongly associated with a higher lactate during the first hours after surgery (r=-0.82; P=0.001). These hemodynamic changes were transient and entirely recovered after the heart was returned to its anatomical position. No significant differences were observed in FCI, SVV, or the systemic vascular resistance index (SVRI) during all anastomoses, except for a drop in SVRI during PD grafting (-8.03±2.3, P=0.007). SV tended to decrease during the procedure in all territories, but with statistically significant drop only in PD and OM grafting (-10.4±1.2, P=0.02; -13.6±5.1, P=0.007; respectively). CONCLUSION: Heart displacement for performing aorta no-touch OPCAB is well tolerated, with transient and endurable hemodynamic variations.


Assuntos
Anastomose Cirúrgica/métodos , Pressão Sanguínea/fisiologia , Ponte de Artéria Coronária sem Circulação Extracorpórea , Doença das Coronárias/cirurgia , Volume Sistólico/fisiologia , Doença das Coronárias/fisiopatologia , Feminino , Hemodinâmica , Humanos , Masculino , Pessoa de Meia-Idade , Monitorização Intraoperatória , Projetos Piloto , Estudos Prospectivos , Resultado do Tratamento
15.
Rev. bras. cir. cardiovasc ; 33(5): 469-475, Sept.-Oct. 2018. tab, graf
Artigo em Inglês | LILACS | ID: biblio-977461

RESUMO

Abstract Objective: To evaluate the sequential changes of hemodynamic and metabolic parameters in patients who underwent aorta no-touch off-pump coronary artery bypass surgery (OPCAB). Methods: Prospective study involving twenty-seven consecutive patients who underwent aorta no-touch OPCAB. The FloTrac/PreSep/Vigileo™ system (Edwards Lifesciences) was used to continuously record heart rate (HR), mean arterial blood pressure (MABP), central venous pressure (CVP), continuous cardiac index (FCI), stroke volume (SV), stroke volume variation (SVV), and central venous oxygen saturation (ScvO2). The parameters were assessed 5 min before, during and 5 min after each anastomosis (left anterior descending [LAD], posterior descending [PD], obtuse marginal [OM] and diagonal [Dg]). Postoperative lactate was also evaluated. Results: There was no significant change in HR and MABP for all anastomoses, except for MABP during PD grafting (-10.1±2.7 mmHg, P=0.03). There was a significant decrease in ScvO2 only during PD and OM anastomoses (-9.4±0.4, P=0.03; -4.4±0.4, P=0.02; respectively). CVP drop after PD manipulation was strongly associated with a higher lactate during the first hours after surgery (r=-0.82; P=0.001). These hemodynamic changes were transient and entirely recovered after the heart was returned to its anatomical position. No significant differences were observed in FCI, SVV, or the systemic vascular resistance index (SVRI) during all anastomoses, except for a drop in SVRI during PD grafting (-8.03±2.3, P=0.007). SV tended to decrease during the procedure in all territories, but with statistically significant drop only in PD and OM grafting (-10.4±1.2, P=0.02; -13.6±5.1, P=0.007; respectively). Conclusion: Heart displacement for performing aorta no-touch OPCAB is well tolerated, with transient and endurable hemodynamic variations.


Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Volume Sistólico/fisiologia , Pressão Sanguínea/fisiologia , Anastomose Cirúrgica/métodos , Doença das Coronárias/cirurgia , Ponte de Artéria Coronária sem Circulação Extracorpórea , Projetos Piloto , Estudos Prospectivos , Monitorização Intraoperatória , Resultado do Tratamento , Doença das Coronárias/fisiopatologia , Hemodinâmica
16.
Sensors (Basel) ; 17(11)2017 Nov 03.
Artigo em Inglês | MEDLINE | ID: mdl-29099776

RESUMO

Conjugated polymers (CPs) have proved to be promising chemosensory materials for detecting nitroaromatic explosives vapors, as they quickly convert a chemical interaction into an easily-measured high-sensitivity optical output. The nitroaromatic analytes are strongly electron-deficient, whereas the conjugated polymer sensing materials are electron-rich. As a result, the photoexcitation of the CP is followed by electron transfer to the nitroaromatic analyte, resulting in a quenching of the light-emission from the conjugated polymer. The best CP in our studies was found to be poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-bithiophene] (F8T2). It is photostable, has a good absorption between 400 and 450 nm, and a strong and structured fluorescence around 550 nm. Our studies indicate up to 96% quenching of light-emission, accompanied by a marked decrease in the fluorescence lifetime, upon exposure of the films of F8T2 in ethyl cellulose to nitrobenzene (NB) and 1,3-dinitrobenzene (DNB) vapors at room temperature. The effects of the polymeric matrix, plasticizer, and temperature have been studied, and the morphology of films determined by scanning electron microscopy (SEM) and confocal fluorescence microscopy. We have used ink jet printing to produce sensor films containing both sensor element and a fluorescence reference. In addition, a high dynamic range, intensity-based fluorometer, using a laser diode and a filtered photodiode was developed for use with this system.

17.
Rev. Assoc. Med. Bras. (1992) ; 63(11): 957-961, Nov. 2017. tab, graf
Artigo em Inglês | LILACS | ID: biblio-896318

RESUMO

Summary Introduction: Global climate changes directly affect the natural environment and contribute to an increase in the transmission of diseases by vectors. Among these diseases, dengue is at the top of the list. The aim of our study was to understand the consequences of temporal variability of air temperature in the occurrence of dengue in an area comprising seven municipalities of the Greater São Paulo. Method: Characterization of a temporal trend of the disease in the region between 2010 and 2013 was performed through analysis of the notified number of dengue cases over this period. Our analysis was complemented with meteorological (temperature) and pollutant concentration data (PM10). Results: We observed that the months of January, February, March, April and May (from 2010 to 2013) were the ones with the highest number of notified cases. We also found that there is a statistical association of moisture and PM10 with the reported cases of dengue. Conclusion: Although the temperature does not statistically display an association with recorded cases of dengue, we were able to verify that temperature peaks coincide with dengue outbreak peaks. Future studies on environmental pollution and its influence on the development of Aedes aegypti mosquito during all stages of its life cycle, and the definition of strategies for better monitoring, including campaigns and surveillance, would be compelling.


Resumo Objetivo: As alterações globais que têm ocorrido interferem no ambiente natural, influenciando diretamente no crescimento da transmissão de doenças ocasionadas por vetores, das quais se destaca a dengue. O objetivo deste estudo foi compreender as consequências da variabilidade temporal das condições climáticas em relação à ocorrência de dengue na população da região metropolitana de São Paulo, constituída por sete municípios. Método: A caracterização da tendência temporal da dengue foi realizada por meio da análise dos números de casos de dengue notificados nos anos de 2010 a 2013, de dados meteorológicos (umidade e temperatura) e dados de concentração de poluentes (PM10). Resultados: Observou-se que os meses de janeiro a abril (de 2010 a 2013) foram os que apresentaram maior número de casos notificados de dengue, com associação estatística entre a umidade e PM10 com os casos de dengue notificados. Conclusão: Embora a temperatura não assuma, estatisticamente, uma associação com os casos de dengue registrados, foi possível verificar que os picos de temperatura coincidem com os picos epidêmicos de dengue. Seriam interessantes futuros estudos referentes à poluição ambiental e a sua influência no desenvolvimento do mosquito Aedes aegypti em todas as suas fases do ciclo de vida e definição de estratégias para melhor monitoração, campanhas e vigilância.


Assuntos
Humanos , Animais , Dengue/epidemiologia , Insetos Vetores/crescimento & desenvolvimento , População Urbana , Brasil/epidemiologia , Incidência , Estudos Transversais , Cidades/epidemiologia , Aedes , Dengue/transmissão , Vírus da Dengue/isolamento & purificação , Poluição do Ar , Insetos Vetores/virologia , Conceitos Meteorológicos
18.
Artigo em Inglês | MEDLINE | ID: mdl-28085053

RESUMO

We are experiencing an unprecedented urbanization process that, alongside physical, social and economic developments, has been having a significant impact on a population's health. Due to the increase in pollution, violence and poverty, our modern cities no longer ensure a good quality of life so they become unhealthy environments. This study aims to assess the effect of social, environmental and economic factors on the hematologic profile of residents of Santo André's landfill. In particular, we will assess the effect of social, economic, and environmental factors on current and potential disease markers obtained from hematological tests. The research method is the observational type, from a retrospective cohort, and by convenience sampling in Santo André in the Greater ABC (municipalities of Santo André, São Bernardo do Campo and São Caetano do Sul, southeast part of the Greater São Paulo Metropolitan Area, Brazil). The study determined a socio-environmental profile and the hematologic diseases screening related to a close location to the landfill. The disease manifests itself within a broad spectrum of symptoms that causes changes in blood count parameters. The objective of this work is to show that there is an association between social, environmental and economic factors and a variety of serious disease outcomes that may be detected from blood screening. A causal study of the effect of living near the landfill on these disease outcomes would be a very expensive and time-consuming study. This work we believe is sufficient for public health officials to consider policy and attempt remediation of the effects of living near a landfill.


Assuntos
Doenças Hematológicas/epidemiologia , Fatores Socioeconômicos , Instalações de Eliminação de Resíduos/estatística & dados numéricos , Adolescente , Adulto , Brasil/epidemiologia , Criança , Feminino , Testes Hematológicos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
19.
Rev Assoc Med Bras (1992) ; 63(11): 957-961, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-29451659

RESUMO

INTRODUCTION: Global climate changes directly affect the natural environment and contribute to an increase in the transmission of diseases by vectors. Among these diseases, dengue is at the top of the list. The aim of our study was to understand the consequences of temporal variability of air temperature in the occurrence of dengue in an area comprising seven municipalities of the Greater São Paulo. METHOD: Characterization of a temporal trend of the disease in the region between 2010 and 2013 was performed through analysis of the notified number of dengue cases over this period. Our analysis was complemented with meteorological (temperature) and pollutant concentration data (PM10). RESULTS: We observed that the months of January, February, March, April and May (from 2010 to 2013) were the ones with the highest number of notified cases. We also found that there is a statistical association of moisture and PM10 with the reported cases of dengue. CONCLUSION: Although the temperature does not statistically display an association with recorded cases of dengue, we were able to verify that temperature peaks coincide with dengue outbreak peaks. Future studies on environmental pollution and its influence on the development of Aedes aegypti mosquito during all stages of its life cycle, and the definition of strategies for better monitoring, including campaigns and surveillance, would be compelling.


Assuntos
Dengue/epidemiologia , Insetos Vetores/crescimento & desenvolvimento , Aedes , Poluição do Ar , Animais , Brasil/epidemiologia , Cidades/epidemiologia , Estudos Transversais , Dengue/transmissão , Vírus da Dengue/isolamento & purificação , Humanos , Incidência , Insetos Vetores/virologia , Conceitos Meteorológicos , População Urbana
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