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1.
Plants (Basel) ; 13(3)2024 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-38337967

RESUMEN

The growing demand for food production has led to an increase in agricultural areas, including many with low and irregular rainfall, stressing the importance of studies aimed at mitigating the harmful effects of water stress. From this perspective, the objective of this study was to evaluate calcium pyruvate as an attenuator of water deficit on chlorophyll a fluorescence of five sugarcane genotypes. The experiment was conducted in a plant nursery where three management strategies (E1-full irrigation, E2-water deficit with the application of 30 mM calcium pyruvate, and E3-water deficit without the application of calcium pyruvate) and five sugarcane genotypes (RB863129, RB92579, RB962962, RB021754, and RB041443) were tested, distributed in randomized blocks, in a 3 × 5 factorial design with three replications. There is dissimilarity in the fluorescence parameters and photosynthetic pigments of the RB863129 genotype in relation to those of the RB041443, RB96262, RB021754, and RB92579 genotypes. Foliar application of calcium pyruvate alleviates the effects of water deficit on the fluorescence parameters of chlorophyll a and photosynthetic pigments in sugarcane, without interaction with the genotypes. However, subsequent validation tests will be necessary to test and validate the adoption of this technology under field conditions.

2.
Can J Physiol Pharmacol ; 101(12): 661-671, 2023 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-37746936

RESUMEN

Renovascular hypertension (RHV) is the cause of high blood pressure due to left renal ischemia, and obesity and hypertension cause an inflammatory response. This work analyzed the inflammatory and tissue repair profile in renal, hepatic, and cardiac tissues in an animal model of RVH associated with a high-fat diet and caloric restriction. The expressions of RORγ-t, IL-17, T-bet, and TNF-α decreased and IFN-γ increased in the right kidney. In relation to the left kidney, caloric restriction decreased the expression of IFN-γ. In the liver, caloric restriction decreased RORγ-t, IL-17, and T-bet. Hypertension associated with obesity decreased the expression of IFN-γ, while caloric restriction increased. In the right kidney, hypertension and obesity, associated or not with caloric restriction, increased the area of collagen fibers. In the heart and liver, caloric restriction reduced the area of collagen fibers. Caloric restriction increased vascular endothelial growth factor, reduced levels of growth transformation factor-ß1 (TGF-ß), and increased collagen I in the left kidney. Hypertension/obesity, submitted or not having caloric restriction, increased TGF-ß in liver. The results suggest that caloric restriction has beneficial effects in lowering blood pressure and regulating tissue proinflammatory cytokines. However, there was no change in the structure and composition of tissue repair markers.


Asunto(s)
Hipertensión Renovascular , Ratas , Animales , Hipertensión Renovascular/metabolismo , Ratas Wistar , Interleucina-17 , Restricción Calórica , Factor A de Crecimiento Endotelial Vascular , Obesidad/complicaciones , Factor de Crecimiento Transformador beta , Inflamación , Colágeno/metabolismo
3.
Am J Physiol Endocrinol Metab ; 325(5): E513-E528, 2023 11 01.
Artículo en Inglés | MEDLINE | ID: mdl-37755454

RESUMEN

Nonalcoholic fatty liver disease (NAFLD), a condition characterized by the accumulation of fat in the liver, is estimated to be the most common liver disease worldwide. Obesity is a major risk factor and contributor, and, accordingly, weight loss can improve NAFLD. Previous studies in preclinical models of diet-induced obesity and fatty liver disease have shown the independent benefits of resistance exercise training (RT) and time-restricted feeding (TRF) in preventing weight gain and hepatic build-up of fat. Here, we tested the combined effect of TRF and RT on obesity and NAFLD in mice fed a high-fat diet. Our results showed that both TRF-8-h food access in the active phase-and RT-consisting of three weekly sessions of ladder climbing-attenuated body weight gain, improved glycemic homeostasis, and decreased the accumulation of lipids in the liver. TRF combined with RT improved the respiratory exchange rate, energy expenditure, and mitochondrial respiration in the liver. Furthermore, gene expression analysis in the liver revealed lower mRNA expression of lipogenesis and inflammation genes along with increased mRNA of fatty acid oxidation genes in the TRF + RT group. Importantly, combined TRF + RT was shown to be more efficient in preventing obesity and metabolic disorders. In conclusion, TRF and RT exert complementary actions compared with isolated interventions, with significant effects on metabolic disorders and NAFLD in mice.NEW & NOTEWORTHY Whether time-restricted feeding (TRF) combined with resistance exercise training (RT) may be more efficient compared with these interventions alone is still unclear. We show that when combined with RT, TRF provided additional benefits, being more effective in increasing energy expenditure, preventing weight gain, and regulating glycemic homeostasis than each intervention alone. Thus, our results demonstrate that TRF and RT have complementary actions on some synergistic pathways that prevented obesity and hepatic liver accumulation.


Asunto(s)
Enfermedades Metabólicas , Enfermedad del Hígado Graso no Alcohólico , Entrenamiento de Fuerza , Ratones , Animales , Humanos , Enfermedad del Hígado Graso no Alcohólico/metabolismo , Metabolismo de los Lípidos , Dieta Alta en Grasa/efectos adversos , Obesidad/metabolismo , Hígado/metabolismo , Aumento de Peso , Enfermedades Metabólicas/metabolismo , ARN Mensajero/metabolismo , Ratones Endogámicos C57BL
4.
Glob Chang Biol ; 29(17): 4861-4879, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37386918

RESUMEN

For more than three decades, major efforts in sampling and analyzing tree diversity in South America have focused almost exclusively on trees with stems of at least 10 and 2.5 cm diameter, showing highest species diversity in the wetter western and northern Amazon forests. By contrast, little attention has been paid to patterns and drivers of diversity in the largest canopy and emergent trees, which is surprising given these have dominant ecological functions. Here, we use a machine learning approach to quantify the importance of environmental factors and apply it to generate spatial predictions of the species diversity of all trees (dbh ≥ 10 cm) and for very large trees (dbh ≥ 70 cm) using data from 243 forest plots (108,450 trees and 2832 species) distributed across different forest types and biogeographic regions of the Brazilian Amazon. The diversity of large trees and of all trees was significantly associated with three environmental factors, but in contrasting ways across regions and forest types. Environmental variables associated with disturbances, for example, the lightning flash rate and wind speed, as well as the fraction of photosynthetically active radiation, tend to govern the diversity of large trees. Upland rainforests in the Guiana Shield and Roraima regions had a high diversity of large trees. By contrast, variables associated with resources tend to govern tree diversity in general. Places such as the province of Imeri and the northern portion of the province of Madeira stand out for their high diversity of species in general. Climatic and topographic stability and functional adaptation mechanisms promote ideal conditions for species diversity. Finally, we mapped general patterns of tree species diversity in the Brazilian Amazon, which differ substantially depending on size class.


Asunto(s)
Aclimatación , Viento , Brasil , Bosque Lluvioso , Biodiversidad
5.
Adv Ther ; 40(7): 3169-3185, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37227585

RESUMEN

INTRODUCTION: Preoperative ureteral catheterization/stenting (stenting) and intraoperative diagnostic cystoscopy (cystoscopy) may help prevent or identify intraoperative ureteral injuries (IUIs) during abdominopelvic surgery. In order to provide a comprehensive, single source of data for health care decision makers, this study aimed to catalog the incidence of IUI and rates of stenting and cystoscopy across a wide spectrum of abdominopelvic surgeries. METHODS: We conducted a retrospective cohort analysis of United States (US) hospital data (October 2015-December 2019). IUI rates and stenting/cystoscopy use were investigated for gastrointestinal, gynecological, and other abdominopelvic surgeries. IUI risk factors were identified using multivariable logistic regression. RESULTS: Among approximately 2.5 million included surgeries, IUIs occurred in 0.88% of gastrointestinal, 0.29% of gynecological, and 1.17% of other abdominopelvic surgeries. Aggregate rates varied by setting and for some surgery types were higher than previously reported, especially in certain higher-risk colorectal procedures. Prophylactic measures were generally employed at a relatively low frequency, with cystoscopy used in 1.8% of gynecological procedures and stenting used in 5.3% of gastrointestinal and 2.3% of other abdominopelvic surgeries. In multivariate analyses, stenting and cystoscopy use, but not surgical approach, were associated with a higher risk of IUI. Risk factors associated with stenting or cystoscopy, as well as those for IUI, largely mirrored the variables reported in the literature, including patient demographics (older age, non-White race, male sex, higher comorbidity), practice settings, and established IUI risk factors (diverticulitis, endometriosis). CONCLUSION: Use of stenting and cystoscopy largely varied by surgery type, as did rates of IUI. The relatively low use of prophylactic measures suggests there may be an unmet need for a safe, convenient method of injury prophylaxis in abdominopelvic surgeries. Development of new tools, technology, and/or techniques is needed to help surgeons identify the ureter and avoid IUI and the resulting complications.


Asunto(s)
Uréter , Femenino , Masculino , Humanos , Estados Unidos/epidemiología , Uréter/cirugía , Uréter/lesiones , Estudios Retrospectivos , Complicaciones Intraoperatorias/epidemiología , Complicaciones Intraoperatorias/prevención & control , Complicaciones Intraoperatorias/etiología , Cistoscopía/efectos adversos
6.
J Cell Biochem ; 124(4): 520-532, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36791261

RESUMEN

Gluten intolerance is associated with several disorders in the body. Although research has grown in recent years, the understanding of its impact on different tissues and the effects of physical exercise in mitigating health problems in the condition of gluten intolerance are still limited. Therefore, our objective was to test whether gliadin would affect metabolism and inflammation in liver tissue and whether aerobic physical exercise would mitigate the negative impacts of gliadin administration in rodents. Wistar rats were divided into exercised gliadin, gliadin, and control groups. Gliadin was administered by gavage from birth to 60 days of age. The rats in the exercised gliadin group performed an aerobic running exercise training protocol for 15 days. At the end of the experiments, physiological, histological, and molecular analyzes were performed in the study. Compared to the control group, the gliadin group had impaired weight gain and increased gluconeogenesis, lipogenesis, and inflammatory biomarkers in the liver. On the other hand, compared to the gliadin group, animals in the exercise-gliadin group had a recovery in body weight, improved insulin sensitivity, and a reduction in some gluconeogenesis, lipogenesis, and inflammatory biomarkers in the liver. In conclusion, our results revealed that the administration of gliadin from birth impaired weight gain and induced an increase in hepatic inflammatory cytokines, which was associated with an impairment of glycemic homeostasis in the liver, all of which were attenuated by adding aerobic exercise training in the gliadin group.


Asunto(s)
Enfermedad Celíaca , Gliadina , Ratas , Animales , Ratas Wistar , Enfermedad Celíaca/metabolismo , Aumento de Peso , Inflamación/inducido químicamente , Inflamación/terapia , Biomarcadores
7.
J Radioanal Nucl Chem ; 331(12): 5487-5492, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36406808

RESUMEN

Dietary supplements and agricultural byproducts were characterized by neutron activation analysis. The nutritional potential of supplements was evaluated according to alternative and commercial categories, using analysis of variance and cluster analysis, and recommended dietary intake for children. The results indicated statistically significant differences between both categories for the elements Cs, K, Na, and Rb. For the nutritional elements Ca, Co, Fe, K, Na, and Zn, the categories were similar in cluster analysis. The similarity between elemental profiles of alternative supplements and agricultural byproducts was calculated using a dissimilarity matrix, showing that rice and wheat are the predominant ingredients.

9.
Clin Exp Pharmacol Physiol ; 49(10): 1072-1081, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-35690890

RESUMEN

Obesity is associated with low-grade inflammation and disturbances in hepatic metabolism. This study aimed to investigate the effects of resistance exercise on inflammatory signalling related to IκB kinase (IKK) ɛ protein (IKKɛ) and on hepatic fat accumulation in obese mice. Male Swiss mice were distributed into three groups: control (CTL) fed with standard chow; obese (OB) mice induced by a high-fat diet (HFD); obese exercised (OB + RE) mice fed with HFD and submitted to a resistance exercise training. The resistance exercise training protocol consisted of 20 sets/3 ladder climbs for 8 weeks, three times/week on alternate days. The training overload was equivalent to 70% of the maximum load supported by the rodent. Assays were performed to evaluate weight gain, hepatic fat content, fasting glucose, insulin sensitivity, IKKɛ phosphorylation and proteins related to insulin signalling and lipogenesis in the liver. Mice that received the high-fat diet showed greater adiposity, impaired insulin sensitivity, increased fasting glucose and increased hepatic fat accumulation. These results were accompanied by an increase in IKKɛ phosphorylation and lipogenesis-related proteins such as cluster of differentiation 36 (CD36) and fatty acid synthase (FAS) in the liver of obese mice. In contrast, exercised mice showed lower body weight and adiposity evolution throughout the experiment. In addition, resistance exercise suppressed the effects of the high-fat diet by reducing IKKɛ phosphorylation and hepatic fat content. In conclusion, resistance exercise training improves hepatic fat metabolism and glycaemic homeostasis, which are, at least in part, linked to the anti-inflammatory effect of reduced IKKɛ phosphorylation in the liver of obese mice.


Asunto(s)
Adiposidad , Quinasa I-kappa B , Hígado , Obesidad , Entrenamiento de Fuerza , Animales , Dieta Alta en Grasa/efectos adversos , Glucosa/metabolismo , Humanos , Quinasa I-kappa B/metabolismo , Resistencia a la Insulina , Hígado/metabolismo , Masculino , Ratones , Ratones Endogámicos C57BL , Ratones Obesos , Obesidad/metabolismo , Fosforilación
10.
Sensors (Basel) ; 22(8)2022 Apr 18.
Artículo en Inglés | MEDLINE | ID: mdl-35459069

RESUMEN

A water supply system is considered an essential service to the population as it is about providing an essential good for life. This system typically consists of several sensors, transducers, pumps, etc., and some of these elements have high costs and/or complex installation. The indirect measurement of a quantity can be used to obtain a desired variable, dispensing with the use of a specific sensor in the plant. Among the contributions of this technique is the design of the pressure controller using the adaptive control, as well as the use of an artificial neural network for the construction of nonlinear models using inherent system parameters such as pressure, engine rotation frequency and control valve angle, with the purpose of estimating the flow. Among the various contributions of the research, we can highlight the suppression in the acquisition of physical flow meters, the elimination of physical installation and others. The validation was carried out through tests in an experimental bench located in the Laboratory of Energy and Hydraulic Efficiency in Sanitation of the Federal University of Paraiba. The results of the soft sensor were compared with those of an electromagnetic flux sensor, obtaining a maximum error of 10%.


Asunto(s)
Redes Neurales de la Computación , Agua , Dinámicas no Lineales , Transductores , Abastecimiento de Agua
11.
Cell Biochem Funct ; 40(3): 321-332, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35298040

RESUMEN

Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by inflammation and involvement of the synovial membrane, causing joint damage and deformities. No effective drug treatment is available, and physical exercise has been utilized to alleviate the inflammatory processes. This study aimed to investigate the effects of different exercise training protocols on Zymosan-induced RA inflammatory markers in the right knee of Wistar rats. The rodents were subjected to aerobic, resisted, and combined physical training protocols with variations in the total training volume (50% or 100% of resistance and aerobic training volume) for 8 weeks. All physical training protocols reduced cachexia and systemic inflammatory processes. The histological results showed an increase in the inflammatory influx to the synovial tissue of the right knee in all physical training protocols. The rats that underwent combined physical training with reduced volume had a lower inflammatory influx compared to the other experimental groups. A reduction in the mRNA expression of inflammatory genes and an increase in anti-inflammatory gene expression were also observed. The physical training protocol associated with volume reduction attenuated systemic and synovial inflammation of the right knee, reducing the impact of Zymosan-induced RA in rats.


Asunto(s)
Artritis Experimental , Artritis Reumatoide , Animales , Artritis Experimental/patología , Artritis Reumatoide/inducido químicamente , Artritis Reumatoide/patología , Artritis Reumatoide/terapia , Inflamación/inducido químicamente , Ratas , Ratas Wistar , Zimosan/efectos adversos
12.
PeerJ Comput Sci ; 8: e794, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35111909

RESUMEN

The growing technological advance is causing constant business changes. The continual uncertainties in project management make requirements engineering essential to ensure the success of projects. The usual exponential increase of stakeholders throughout the project suggests the application of intelligent tools to assist requirements engineers. Therefore, this article proposes Nhatos, a computational model for ubiquitous requirements management that analyses context histories of projects to recommend reusable requirements. The scientific contribution of this study is the use of the similarity analysis of projects through their context histories to generate the requirement recommendations. The implementation of a prototype allowed to evaluate the proposal through a case study based on real scenarios from the industry. One hundred fifty-three software projects from a large bank institution generated context histories used in the recommendations. The experiment demonstrated that the model achieved more than 70% stakeholder acceptance of the recommendations.

13.
J Allergy Clin Immunol Pract ; 10(2): 485-494.e5, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34626859

RESUMEN

BACKGROUND: Addition of a long-acting muscarinic antagonist is recommended for patients with asthma uncontrolled on inhaled corticosteroid/long-acting ß2-agonist therapy. This is the first large-scale, real-world study examining multiple-inhaler triple-therapy (MITT) use in asthma. OBJECTIVE: To describe real-world prevalence, outcomes, and treatment patterns associated with MITT. METHODS: This retrospective cohort study used medical and pharmacy claims from the Optum Research Database. Patients were diagnosed with asthma between January 01, 2013, and July 31, 2018, with evidence of MITT use (≥1 overlapping days' supply of inhaled corticosteroid, long-acting ß2-agonist, and long-acting muscarinic antagonist). Annual MITT prevalence (primary end point) was assessed in the prevalent population; eligible patients were 18 years or older with 2 or more asthma diagnoses during the study period, and continuous enrollment for the entire year. Secondary outcomes (adherence [proportion of days covered], MITT persistence, health care resource utilization, costs) were assessed in the incident MITT population; eligible patients were 18 years or older, with 2 or more asthma diagnoses and continuous enrollment during both the 12-month baseline and 12-month follow-up periods. Patients with chronic obstructive pulmonary disease or cystic fibrosis were excluded. RESULTS: MITT prevalence was low but increased from 0.35% (95% CI, 0.32-0.37) in 2014/2015 to 1.00% (95% CI, 0.96-1.04) in 2017/2018. Among 1831 incident MITT users, there was a substantial disease burden, demonstrated by high health care resource utilization and exacerbation rates. Adherence and persistence to MITT was low (mean proportion of days covered, 0.31 ± 0.27), and 12% (n = 216) remained on MITT 12 months postinitiation. CONCLUSIONS: Overall, MITT use among patients with asthma is low. Patients initiating MITT have substantial disease burden and significant unmet needs.


Asunto(s)
Asma , Enfermedad Pulmonar Obstructiva Crónica , Administración por Inhalación , Corticoesteroides , Agonistas de Receptores Adrenérgicos beta 2/uso terapéutico , Asma/inducido químicamente , Asma/tratamiento farmacológico , Asma/epidemiología , Broncodilatadores/uso terapéutico , Costo de Enfermedad , Humanos , Nebulizadores y Vaporizadores , Enfermedad Pulmonar Obstructiva Crónica/tratamiento farmacológico , Estudios Retrospectivos
14.
J Asthma ; 59(9): 1805-1818, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-34375568

RESUMEN

OBJECTIVE: Treatment with fluticasone furoate/vilanterol (FF/VI), an inhaled corticosteroid/long-acting ß2-agonist therapy, reduces the risk of severe asthma exacerbations and improves lung function and symptom control in patients with asthma. However, real-world data remain limited among asthma patients in the United States (US). METHODS: This retrospective cohort study propensity score (PS) matched adult asthma patients initiating once-daily FF/VI 100/25 mcg with patients initiating twice-daily budesonide/formoterol (B/F) 160/4.5 mcg using a US claims database (January 1, 2015-December 31, 2018). Asthma control was measured by the mean number of short-acting ß2-agonist (SABA) canisters dispensed per patient-year (PPY) during follow-up. Time to first, and rates of, overall and severe asthma exacerbations were also measured. RESULTS: After PS matching, 18,531 patients receiving FF/VI were matched to 18,531 patients receiving B/F. Mean SABA canisters dispensed PPY was significantly lower for FF/VI users compared with B/F users (FF/VI: 1.47, B/F: 1.64; p < 0.001). FF/VI use resulted in 13% significantly lower risk of having an overall asthma-related exacerbation and 22% lower risk of a severe exacerbation versus B/F use (overall exacerbation hazard ratio [HR] [95% confidence interval (CI)]: 0.87 [0.82-0.92], p < 0.001; severe exacerbation HR [95% CI]: 0.78 [0.63-0.97], p = 0.027). Asthma-related exacerbation rates per 100 patient-days were also significantly lower for the FF/VI group compared with the B/F group (overall: 0.0475 vs. 0.0558, p < 0.001; severe: 0.0026 vs. 0.0033, p = 0.020). CONCLUSIONS: In real-world practice, initiation of once-daily FF/VI 100/25 mcg in adults with asthma was associated with lower use of SABA and fewer asthma-related exacerbations, which may indicate better asthma control, when compared with use of twice-daily B/F 160/4.5 mcg.


Asunto(s)
Asma , Administración por Inhalación , Corticoesteroides/uso terapéutico , Agonistas de Receptores Adrenérgicos beta 2/uso terapéutico , Adulto , Androstadienos/uso terapéutico , Asma/tratamiento farmacológico , Alcoholes Bencílicos , Combinación Budesonida y Fumarato de Formoterol/uso terapéutico , Clorobencenos/uso terapéutico , Estudios de Cohortes , Combinación de Medicamentos , Fluticasona/uso terapéutico , Humanos , Estudios Retrospectivos , Resultado del Tratamiento , Estados Unidos
15.
PLoS One ; 16(12): e0255197, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34914697

RESUMEN

Height measurements are essential to manage and monitor forest biomass and carbon stocks. However, accurate estimation of this variable in tropical ecosystems is still difficult due to species heterogeneity and environmental variability. In this article, we compare and discuss six nonlinear allometric models parameterized at different scales (local, regional and pantropical). We also evaluate the height measurements obtained in the field by the hypsometer when compared with the true tree height. We used a dataset composed of 180 harvested trees in two distinct areas located in the Amapá State. The functional form of the Weibull model was the best local model, showing similar performance to the pantropical model. The inaccuracy detected in the hypsometer estimates reinforces the importance of incorporating new technologies in measuring individual tree heights. Establishing accurate allometric models requires knowledge of ecophysiological and environmental processes that govern vegetation dynamics and tree height growth. It is essential to investigate the influence of different species and ecological gradients on the diameter/height ratio.


Asunto(s)
Biomasa , Bosques , Modelos Biológicos , Árboles/crecimiento & desarrollo , Clima Tropical , Brasil
16.
Sensors (Basel) ; 21(16)2021 Aug 16.
Artículo en Inglés | MEDLINE | ID: mdl-34450950

RESUMEN

Simulation is a useful and common technique to evaluate the performance of networks when the implementation of a real scenario is not available. Specifically for Wireless Body Area Networks (WBAN), it is crucial to perform evaluations in environments as close as possible to the real conditions of use. To achieve that, simulations must include different protocol layers involved in WBAN and models close to reality to create realistic simulation environments for e-health applications. To satisfy these needs, this work presents the BNS framework, a flexible tool for WBAN simulations. The proposal is an extension of the Castalia framework, which includes: (1) a new wireless channel model considering real radio-propagation over the human body; (2) an updated implementation of the WBAN MAC protocol in Castalia, with functionalities and requirements in accordance with the IEEE 802.15.6 standard; (3) a new comprehensive and configurable mobility model for simulating intra-WBAN communication; (4) a temperature module based on the Pennes bioheat transfer equation, to model the temperature of a WBAN node based on the activity of the node; and (5) a Healthcare Application Layer that implements data representation and a communication protocol between Personal Health Devices (PHD) following the ISO/IEEE 11073 standard. Three use cases are presented, where WBAN scenarios are simulated and evaluated using the proposed BNS framework. Results show that BNS is a valid and flexible tool to evaluate WBAN solutions through simulation.


Asunto(s)
Redes de Comunicación de Computadores , Tecnología Inalámbrica , Humanos , Comunicación , Simulación por Computador
17.
J Asthma Allergy ; 14: 755-771, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34234471

RESUMEN

RATIONALE: The National Heart, Lung, and Blood Institute (NHLBI) recommend a stepwise approach to asthma management, with the goals of maintaining asthma control and reducing exacerbations. Although asthma treatments reduce the frequency of exacerbations, they still occur. We aimed to characterize the treated United States of America (US) adult asthma population, including those experiencing exacerbations, in terms of socio-demographics, clinical characteristics, and healthcare resource utilization (HRU). PATIENTS AND METHODS: A retrospective cohort of asthma patients aged ≥18 years on 01 January 2014 with ≥1 ICD-9 asthma code (493.xx) enrolled in a US healthcare claims database during 2013-2014. Patients who had ≥2 asthma medication dispensings during 2013 (baseline), including ≥1 in the 90-day period before index date, were classified according to NHLBI step. Patients with chronic obstructive pulmonary disease, cystic fibrosis, or lung cancer diagnoses were excluded. Demographics, comorbidities, clinical characteristics, and HRU were described during baseline. Exacerbations and HRU were described during 2014 (follow-up period). RESULTS: In total, 72,156 patients were included; 10,590 (14.7%) had ≥1 exacerbation during follow-up. Approximately 44% of patients were classified as NHLBI Steps 1-2, 41% as Steps 3-4, and 11% as Steps 5-6. Exacerbation frequency increased with step (Steps 1, 2, and 3: 12-14%; Steps 4, 5, and 6: 16-26%). Compared with the overall population during baseline, patients with an exacerbation had similar demographics, but differences were observed for comorbid allergic rhinitis (46.4% vs 40.1%, respectively), blood eosinophil counts ≥300 cells/µL (45.5% vs 39.6%, respectively), and asthma-related healthcare encounters (62.9% vs 52.4%, respectively). Overall, asthma-related HRU during follow-up increased with NHLBI step. CONCLUSION: Exacerbations were observed among patients classified at each NHLBI step and were more frequent with increasing step. Exacerbations and asthma-related HRU highlight the continued unmet need in the treated US asthma population.

18.
Motrivivência (Florianópolis) ; 33(64): [1-14], Mar. 2021.
Artículo en Portugués | LILACS-Express | LILACS | ID: biblio-1248203

RESUMEN

Este estudo se propôs a analisar a produção acadêmica brasileira no campo da Educação Física acerca do futebol/futsal feminino afins de identificar quais os indícios científicos os estudos em questão apresentam. A pesquisa possui caráter qualitativo, já que opera uma Revisão Sistemática da Literatura (RSL). Como critério para a seleção dos periódicos, foram priorizados aqueles voltados para a área de Educação Física, com estratificação B e A segundo a avaliação da CAPES (Qualis) e publicados entre 2015 e 2020. No transcurso da pesquisa, doze artigos de seis revistas, na perspetiva quanti-qualitativa, foram analisados. Para proceder com a análise, foram criadas duas categorias: (i) aspectos históricos, sociais e culturais; (ii) performance e alto rendimento. O campo de pesquisa sobre futebol/futsal feminino destaca discussões sobre gênero, incentivos e preconceitos.


This study aimed to analyze the Brazilian academic production in the field of Physical Education about women's football / futsal, in order to identify what scientific evidence the studies in question present. A qualitative approach methodology was adopted, such as Systematic Literature Review (RSL), in which searches were concentrated on magazines focused on the area of Physical Education with stratification of B and A according to Qualis (CAPES) in the period from 2015 to 2020. In the course of the research, twelve articles from six journals, from a quanti-qualitative perspective, were analyzed. To proceed with the analysis, two categories were created: (i) historical, social and cultural aspects; (ii) performance and high performance. The women's football / futsal research field highlights discussions about gender, incentives and prejudices.


Este estudio tuvo como objetivo analizar la producción académica brasileña en el campo de la Educación Física sobre fútbol / fútbol sala femenino, con el fin de identificar qué evidencia científica presentan los estudios en cuestión. La investigación tiene un carácter cualitativo, ya que opera una Revisión sistemática de literatura (RSL). Como criterio para la selección de revistas, se dio prioridad a aquellos enfocados en el área de Educación Física, con estratificación B y A según la evaluación CAPES (Qualis) y publicados entre 2015 y 2020. En el curso de la investigación, doce artículos de seis revistas, desde una perspectiva cuantitativa, se analizaron. Para proceder con el análisis, se crearon dos categorías: (i) aspectos históricos, sociales y culturales; (ii) rendimiento y alto rendimiento. El campo de investigación de fútbol femenino / fútbol sala destaca las discusiones sobre género, incentivos y prejuicios.

19.
Ann Allergy Asthma Immunol ; 126(4): 385-393.e2, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33387616

RESUMEN

BACKGROUND: Approximately 30% to 50% of patients with moderate/severe asthma have inadequately controlled disease despite adherence to inhaled corticosteroid (ICS)/long-acting ß2-agonist (LABA) therapy. Data on prevalence and burden of uncontrolled asthma in specialty settings are lacking. OBJECTIVE: To evaluate the prevalence and burden of uncontrolled asthma in respiratory specialist clinics in the United States. METHODS: Adults with physician-diagnosed asthma attending pulmonary and allergy clinics with self-reported ICS use in the previous 4 weeks completed an electronic questionnaire including the Asthma Control Test and St George's Respiratory Questionnaire. Additional information was collected using an electronic case report form. RESULTS: Of 774 patients attending 12 pulmonary and 12 allergy clinics, 53% were not well controlled (mean [SD] Asthma Control Test, 14.3 [3.6] vs 22.4 [1.6] in well-controlled patients). Among ICS/LABA users, 56% were not well controlled, which increased with increasing ICS dose (low-dose 45.7%; high-dose 59.7%). The not well-controlled group reported more respiratory illnesses, more comorbidities, and poorer health-related quality of life (mean [SD] St George's Respiratory Questionnaire, 46.1 [18.9] vs 19.8 [12.9] in the well-controlled group). These patients also had more asthma exacerbations (≥1 exacerbation, 68.9% vs 43.1%) and increased health care resource utilization (≥1 asthma-related hospitalization, 10.7% vs 2.7%); 27.3% were also receiving systemic corticosteroids. Approximately 40% of the population were eligible for step-up to ICS/LABA/long-acting muscarinic antagonist triple therapy, and 20% were eligible for biologic therapy. CONCLUSION: Substantial unmet needs exist among patients with inadequately controlled asthma managed in United States specialist settings, which may be addressed by improved patient and physician education, better guideline implementation, and improved adherence.


Asunto(s)
Asma/tratamiento farmacológico , Corticoesteroides/uso terapéutico , Antiasmáticos/uso terapéutico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Antagonistas Muscarínicos/uso terapéutico , Calidad de Vida
20.
Chest ; 159(3): 985-995, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-33031829

RESUMEN

BACKGROUND: In the Informing the Pathway of COPD Treatment (IMPACT) trial, single-inhaler triple-therapy fluticasone furoate (FF), umeclidinium (UMEC), and vilanterol (VI) reduced moderate/severe exacerbation rates vs FF/VI and UMEC/VI in patients with symptomatic COPD and a history of exacerbations, with a similar safety profile. RESEARCH QUESTION: Are trial outcomes with single-inhaler triple-therapy FF/UMEC/VI vs FF/VI and UMEC/VI affected by age in patients with symptomatic COPD and a history of exacerbations? STUDY DESIGN AND METHODS: IMPACT was a phase III, double-blind, 52-week trial. Patients ≥ 40 years of age with symptomatic COPD and ≥ 1 moderate/severe exacerbation in the previous year were randomly assigned 2:2:1 to FF/UMEC/VI 100/62.5/25 µg, FF/VI 100/25 µg, or UMEC/VI 62.5/25 µg. End points assessed by age included annual rate of moderate/severe exacerbations, change from baseline (CFB) in trough FEV1, proportion of St. George's Respiratory Questionnaire (SGRQ) responders (≥ 4 units decrease from baseline in SGRQ total score), and safety. RESULTS: The intention-to-treat population comprised 10,355 patients; 4,724 (46%), 4,225 (41%), and 1,406 (14%) were ≤ 64, 65 to 74, and ≥ 75 years of age, respectively. FF/UMEC/VI reduced on-treatment moderate/severe exacerbation rates vs FF/VI (% reduction [95% CI]: ≤ 64 years, 8% [-1 to 16]; P = .070; 65-74 years, 22% [14-29]; P < .001; ≥ 75 years, 18% [3-31]; P = .021) and vs UMEC/VI (≤ 64 years, 16% [7-25]; P = .002; 65-74 years, 33% [25-41]; P < .001; ≥ 75 years, 24% [6-38]; P = .012), with greatest rate reduction seen in the 65 to 74 and ≥ 75 years subgroups. Post hoc analyses of CFB in trough FEV1 and proportion of SGRQ responders at week 52 were significantly greater with FF/UMEC/VI than with FF/VI or UMEC/VI in all subgroups. No new safety signals were identified. INTERPRETATION: FF/UMEC/VI reduced the rate of moderate/severe exacerbations and improved lung function and health status vs FF/VI and UMEC/VI irrespective of age for most end points, with a similar safety profile. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov; No.: NCT02164513; URL: www.clinicaltrials.govCTT116855.


Asunto(s)
Alcoholes Bencílicos , Clorobencenos , Disparidades en el Estado de Salud , Enfermedad Pulmonar Obstructiva Crónica , Quinuclidinas , Pruebas de Función Respiratoria/métodos , Brote de los Síntomas , Administración por Inhalación , Anciano , Androstadienos/administración & dosificación , Androstadienos/efectos adversos , Alcoholes Bencílicos/administración & dosificación , Alcoholes Bencílicos/efectos adversos , Broncodilatadores/administración & dosificación , Broncodilatadores/efectos adversos , Clorobencenos/administración & dosificación , Clorobencenos/efectos adversos , Método Doble Ciego , Combinación de Medicamentos , Monitoreo de Drogas/métodos , Monitoreo de Drogas/estadística & datos numéricos , Femenino , Humanos , Masculino , Nebulizadores y Vaporizadores , Enfermedad Pulmonar Obstructiva Crónica/diagnóstico , Enfermedad Pulmonar Obstructiva Crónica/tratamiento farmacológico , Enfermedad Pulmonar Obstructiva Crónica/fisiopatología , Quinuclidinas/administración & dosificación , Quinuclidinas/efectos adversos , Fármacos del Sistema Respiratorio/administración & dosificación , Fármacos del Sistema Respiratorio/efectos adversos
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