32 research outputs found

    A Systematic Review of Sodium Intake and its Impact on Cardiovascular Health: Insights from Costa Rican Studies

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    Cardiovascular disease (CVD) is a leading cause of morbidity and mortality worldwide, with dietary sodium intake identified as a critical risk factor. This systematic review comprehensively examines the existing literature on sodium intake and its impact on cardiovascular health in Costa Rica. Fifteen relevant studies were analyzed, revealing concerning patterns of sodium consumption, particularly among youngsters and adolescents, with processed and fast foods being major contributors. High sodium intake was consistently associated with elevated blood pressure, a well-established CVD risk factor. The review also assessed sodium reduction initiatives and strategies, demonstrating the potential benefits of interventions in reducing cardiovascular risk. Challenges in addressing sodium consumption in Costa Rica include promoting healthier dietary habits from a young age, collaborating with the food industry for stricter regulations, and addressing socioeconomic disparities in healthcare access. The review highlights the need for evidence-based interventions and policies to reduce the burden of CVD in Costa Rica. Future research should explore longitudinal trends in sodium intake and cardiovascular outcomes, conduct qualitative studies on perception and barriers to sodium reduction, and evaluate the long-term effectiveness of interventions. Implementing targeted public health campaigns and industry regulations can promote healthier eating behaviors and improve overall cardiovascular well-being in the population

    Enhancing the relevance of Shared Socioeconomic Pathways for climate change impacts, adaptation and vulnerability research

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    This paper discusses the role and relevance of the shared socioeconomic pathways (SSPs) and the new scenarios that combine SSPs with representative concentration pathways (RCPs) for climate change impacts, adaptation, and vulnerability (IAV) research. It first provides an overview of uses of social–environmental scenarios in IAV studies and identifies the main shortcomings of earlier such scenarios. Second, the paper elaborates on two aspects of the SSPs and new scenarios that would improve their usefulness for IAV studies compared to earlier scenario sets: (i) enhancing their applicability while retaining coherence across spatial scales, and (ii) adding indicators of importance for projecting vulnerability. The paper therefore presents an agenda for future research, recommending that SSPs incorporate not only the standard variables of population and gross domestic product, but also indicators such as income distribution, spatial population, human health and governance

    Resting-state brain information flow predicts cognitive flexibility in humans

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    The human brain is a dynamic system, where communication between spatially distinct areas facilitates complex cognitive functions and behaviors. How information transfers between brain regions and how it gives rise to human cognition, however, are unclear. In this article, using resting-state functional magnetic resonance imaging (fMRI) data from 783 healthy adults in the Human Connectome Project (HCP) dataset, we map the brain’s directed information flow architecture through a Granger-Geweke causality prism. We demonstrate that the information flow profiles in the general population primarily involve local exchanges within specialized functional systems, long-distance exchanges from the dorsal brain to the ventral brain, and topdown exchanges from the higher-order systems to the primary systems. Using an information flow map discovered from 550 subjects, the individual directed information flow profiles can significantly predict cognitive flexibility scores in 233 novel individuals. Our results provide evidence for directed information network architecture in the cerebral cortex, and suggest that features of the information flow configuration during rest underpin cognitive ability in humans

    Effects of therapeutic plasma exchange on the endothelial glycocalyx in septic shock

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    BACKGROUND: Disruption of the endothelial glycocalyx (eGC) is observed in septic patients and its injury is associated with multiple-organ failure and inferior outcomes. Besides this biomarker function, increased blood concentrations of shedded eGC constituents might play a mechanistic role in septic organ failure. We hypothesized that therapeutic plasma exchange (TPE) using fresh frozen plasma might influence eGC-related pathology by removing injurious mediators of eGC breakdown while at the time replacing eGC protective factors. METHODS: We enrolled 20 norepinephrine-dependent (NE > 0.4 μg/kg/min) patients with early septic shock (onset < 12 h). Sublingual assessment of the eGC via sublingual sidestream darkfield (SDF) imaging was performed. Plasma eGC degradation products, such as heparan sulfate (HS) and the eGC-regulating enzymes, heparanase (Hpa)-1 and Hpa-2, were obtained before and after TPE. A 3D microfluidic flow assay was performed to examine the effect of TPE on eGC ex vivo. Results were compared to healthy controls. RESULTS: SDF demonstrated a decrease in eGC thickness in septic patients compared to healthy individuals (p = 0.001). Circulating HS levels were increased more than sixfold compared to controls and decreased significantly following TPE [controls: 16.9 (8-18.6) vs. septic patients before TPE: 105.8 (30.8-143.4) μg/ml, p < 0.001; vs. after TPE: 70.7 (36.9-109.5) μg/ml, p < 0.001]. The Hpa-2 /Hpa-1 ratio was reduced in septic patients before TPE but normalized after TPE [controls: 13.6 (6.2-21.2) vs. septic patients at inclusion: 2.9 (2.1-5.7), p = 0.001; vs. septic patients after TPE: 13.2 (11.2-31.8), p < 0.001]. Ex vivo stimulation of endothelial cells with serum from a septic patient induced eGC damage that could be attenuated with serum from the same patient following TPE. CONCLUSIONS: Septic shock results in profound degradation of the eGC and an acquired deficiency of the protective regulator Hpa-2. TPE removed potentially injurious eGC degradation products and partially attenuated Hpa-2 deficiency. Trial registration clinicaltrials.gov NCT04231994, retrospectively registered 18 January 2020
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