17 research outputs found
Population health impact and cost-effectiveness of community-supported agriculture among low-income US adults: A microsimulation analysis
Objectives. To estimate the population-level effectiveness and cost-effectiveness of a subsidized community-supported agriculture (CSA) intervention in the United States. Methods. In 2019, we developed a microsimulation model from nationally representative demographic, biomedical, and dietary data (National Health and Nutrition Examination Survey, 2013-2016) and a community-based randomized trial (conducted in Massachusetts from 2017 to 2018). We modeled 2 interventions: unconditional cash transfer (300/year subsidy). Results. The total discounted disability-adjusted life years (DALYs) accumulated over the life course to cardiovascular disease and diabetes complications would be reduced from 24 797 per 10 000 people (95% confidence interval [CI] = 24 584, 25 001) at baseline to 23 463 per 10 000 (95% CI = 23 241, 23 666) under the cash intervention and 22 304 per 10 000 (95% CI = 22 084, 22 510) under the CSA intervention. From a societal perspective and over a life-course time horizon, the interventions had negative incremental cost-effectiveness ratios, implying cost savings to society of -191 767, -93 182 per DALY averted (95% CI = -92 503) for the CSA intervention. Conclusions. Both the cash transfer and subsidized CSA may be important public health interventions for low-income persons in the United States
Health CenterâBased Community-Supported Agriculture: An RCT
Introduction: Socioeconomically vulnerable individuals often face poor access to nutritious food and bear a disproportionate burden of diet-related chronic illness. This study tested whether a subsidized community-supported agriculture intervention could improve diet quality. Study design: An RCT was conducted from May 2017 to December 2018 (data analyzed in 2019). Setting/Participants: Adults with a BMI >25 kg/m2 seen at a community health center in central Massachusetts, or who lived in the surrounding county, were eligible. Intervention: Individuals were randomized to receive either subsidized community-supported agriculture membership (which provided a weekly farm produce pickup from June to November) or healthy eating information (control group). For equity, the control group received financial incentives similar to the intervention group. Main outcome measures: The primary outcome was the Healthy Eating Index 2010 total score (range, 0â100; higher indicates better diet quality; minimum clinically meaningful difference, 3). Healthy Eating Index was assessed using 3 24-hour recalls per participant collected each growing season. Intention-to-treat analyses compared Healthy Eating Index scores between the intervention and control group, accounting for repeated measures with generalized estimating equations. Results: There were 128 participants enrolled and 122 participants for analysis. The participantsâ mean age was 50.3 (SD=13.6) years; 82% were women; and 88% were white, non-Hispanic, with a similar distribution of baseline characteristics comparing the intervention and control groups. Baseline Healthy Eating Index total score was 53.9 (SD=15.3) in the control group and 55.1 (SD=15.2) in the intervention group (p=0.68). The intervention increased the mean Healthy Eating Index total score relative to the control group (4.3 points higher, 95% CI=0.5, 8.1, p=0.03). Food insecurity was lower in the intervention group (RR=0.68, 95% CI=0.48, 0.96). Conclusions: A community-supported agriculture intervention resulted in clinically meaningful improvements in diet quality. Subsidized community-supported agriculture may be an important intervention for vulnerable individuals. Trial registration: This study is registered at www.clinicaltrials.gov NCT03231592. Supplement information: This article is part of a supplement entitled Identifying and Intervening on Social Needs in Clinical Settings: Evidence and Evidence Gaps, which is sponsored by the Agency for Healthcare Research and Quality of the U.S. Department of Health and Human Services, Kaiser Permanente, and the Robert Wood Johnson Foundatio
Cardiomyocytes from human pluripotent stem cells: from laboratory curiosity to industrial biomedical platform
Cardiomyocytes from human pluripotent stem cells (hPSCs-CMs) could revolutionise biomedicine. Global burden of heart failure will soon reach USD $90bn, while unexpected cardiotoxicity underlies 28% of drug withdrawals. Advances in hPSC isolation, Cas9/CRISPR genome engineering and hPSC-CM differentiation have improved patient care, progressed drugs to clinic and opened a new era in safety pharmacology. Nevertheless, predictive cardiotoxicity using hPSC-CMs contrasts from failure to almost total success. Since this likely relates to cell immaturity, efforts are underway to use biochemical and biophysical cues to improve many of the ~ 30 structural and functional properties of hPSC-CMs towards those seen in adult CMs. Other developments needed for widespread hPSC-CM utility include subtype specification, cost reduction of large scale differentiation and elimination of the phenotyping bottleneck. This review will consider these factors in the evolution of hPSC-CM technologies, as well as their integration into high content industrial platforms that assess structure, mitochondrial function, electrophysiology, calcium transients and contractility. This article is part of a Special Issue entitled: Cardiomyocyte Biology: Integration of Developmental and Environmental Cues in the Heart edited by Marcus Schaub and Hughes Abriel
Scour on Alluvial Bed Downstream of Falling Jets
This paper describes a theoretical approach for predicting the local scour downstream of falling
jets, due to grade control structures, with the support of laboratory evidences. A number of 63 runs were con-
ducted, varying sediment grain size, discharge, downstream water level and drop height. For each run, the
scour hole profile was accurately measured in order to derive the bottom shear stress from the local slope,
whence the hydrodynamic characteristics of the flow field at the scour bottom were derived from theoretical
analyses. These analyses show that the turbulence structure in the scour hole can be subdivided in three zones:
i) the impinging jet zone, ii) the transition region and iii) the wall jet zone in which the mean velocity profile
is similar. These considerations allow to compute the bottom shear stress distribution along the scour hole di-
rectly from the impact jet momentum at the scour bottom. Through the sediment equilibrium equation, the
scour hole shape is computed and the maximum scour depth is derived
Assessment of pain associated with chronic pancreatitis: An international consensus guideline
Pain is the most common symptom in chronic pancreatitis (CP) with a major impact on quality of life. Few validated questionnaires to assess pain in CP exist, and the lack of consensus negatively impacts clinical management, research and meta-analysis. This guideline aims to review generic pain questionnaires for their usability in CP, to outline how pain assessment can be modified by confounding factors and pain types, to assess the value of additional measures such as quality of life, mental health and quantitative sensory testing, and finally to review pain assessment questionnaires used specifically in CP. A systematic review was done to answer 27 questions that followed the PICO (Population; Intervention; Comparator; Outcome) template. Quality of evidence of the statements was judged by Grades of Recommendation, Assessment, Development and Evaluation (GRADE) criteria. The manuscript was sent for review to 36 experts from various disciplines and continents in a multi-stage Delphi process, and finally reviewed by patient representatives. Main findings were that generic pain instruments are valid in most settings, but aspects of pain are specific for CP (including in children), and instruments have to account for the wide phenotypic variability and development of sensitization of the central nervous system. Side effects to treatment and placebo effects shall also be considered. Some multidimensional questionnaires are validated for CP and are recommended together with assessment of quality of life and psychiatric co-morbidities. This guideline will result in more homogeneous and comprehensive pain assessment to potentially improve management of painful CP. (c) 2021 The Authors. Published by Elsevier B.V. on behalf of IAP and EPC. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
Expansion nets: proof-nets for propositional classical logic
We give a calculus of proof-nets for classical propositional logic. These nets improve on a proposal due to Robinson by validating the associativity and commutativity of contraction, and provide canonical representants for classical sequent proofs modulo natural equivalences. We present the relationship between sequent proofs and proof-nets as an annotated sequent calculus, deriving formulae decorated with expansion/deletion trees. We then see a subcalculus, expansion nets, which in addition to these good properties has a polynomial-time correctness criterion
Assessment of Tissue-Engineered Islet Graft Viability by Fluorine Magnetic Resonance Spectroscopy
Integrated physiology of the exocrine and endocrine compartments in pancreatic diseases
The âIntegrated Physiology of the Exocrine and Endocrine Compartments in Pancreatic Diseasesâ Workshop was a 1.5-day scientific conference at the National Institutes of Health (Bethesda, MD) that engaged clinical and basic science investigators interested in diseases of the pancreas. This report summarizes the workshop proceedings. The goal of the workshop was to forge connections and identify gaps in knowledge that could guide future research directions. Presentations were segregated into 6 major themes, including (a) Pancreas Anatomy and Physiology; (b) Diabetes in the Setting of Exocrine Disease; (c) Metabolic Influences on the Exocrine Pancreas; (d) Genetic Drivers of Pancreatic Diseases; (e) Tools for Integrated Pancreatic Analysis; and (f) Implications of Exocrine-Endocrine Crosstalk. For each theme, there were multiple presentations followed by panel discussions on specific topics relevant to each area of research; these are summarized herein. Significantly, the discussions resulted in the identification of research gaps and opportunities for the field to address. In general, it was concluded that as a pancreas research community, we must more thoughtfully integrate our current knowledge of the normal physiology as well as the disease mechanisms that underlie endocrine and exocrine disorders so that there is a better understanding of the interplay between these compartments