Efficient derivation of functional astrocytes from human induced pluripotent stem cells (hiPSCs).

Astrocytes are specialized glial cell types of the central nervous system (CNS) with remarkably high abundance, morphological and functional diversity. Astrocytes maintain neural metabolic support, synapse regulation, blood-brain barrier integrity and immunological homeostasis through intricate interactions with other cells, including neurons, microglia, pericytes and lymphocytes. Due to their extensive intercellular crosstalks, astrocytes are also implicated in the pathogenesis of CNS disorders, such as ALS (amyotrophic lateral sclerosis), Parkinson's disease and Alzheimer's disease.

Adverse cardiovascular events and cardiac imaging findings in patients on immune checkpoint inhibitors.

Background: There is an urgent need to better understand the diverse presentations, risk factors, and outcomes of immune checkpoint inhibitor (ICI)-associated cardiovascular toxicity. There remains a lack of consensus surrounding cardiovascular screening, risk stratification, and clinical decision-making in patients receiving ICIs.

Methods: We conducted a single center retrospective cohort study including 2165 cancer patients treated with ICIs between 2013 and 2020.

RETINOBLASTOMA-RELATED Has Both Canonical and Noncanonical Regulatory Functions During Thermo-Morphogenic Responses in Arabidopsis Seedlings.

Warm temperatures accelerate plant growth, but the underlying molecular mechanism is not fully understood. Here, we show that increasing the temperature from 22°C to 28°C rapidly activates proliferation in the apical shoot and root meristems of wild-type Arabidopsis seedlings. We found that one of the central regulators of cell proliferation, the cell cycle inhibitor RETINOBLASTOMA-RELATED (RBR), is suppressed by warm temperatures.

Exploration of Food Attitudes and Management of Eating Behavior from a Psycho-Nutritional Perspective.

Background/objectives: This study investigates the relationship between food attitudes and the management of eating behavior from a psycho-nutritional perspective, with a focus on the Health Belief Model (HBM). The objective was to explore how emotional food cravings influence different aspects of eating behavior and dietary attitudes, and to identify indirect pathways through which these cravings affect attitudes toward dieting behaviors.

Methods: Data were collected from 659 participants using validated scales that assessed dieting tendencies, bulimia and food preoccupation, culinary behaviors, food preoccupation, expectations of positive outcomes, and emotional food cravings.

The Updated Registry of Fast Myocardial Perfusion Imaging with Next-Generation SPECT (REFINE SPECT 2.0).

The Registry of Fast Myocardial Perfusion Imaging with Next-Generation SPECT (REFINE SPECT) has been expanded to include more patients and CT attenuation correction imaging. We present the design and initial results from the updated registry. The updated REFINE SPECT is a multicenter, international registry with clinical data and image files.

Establishment of human pluripotent stem cell-derived cortical neurosphere model to study pathomechanisms and chemical toxicity in Kleefstra syndrome.

In the present study, we aimed to establish and characterize a mature cortical spheroid model system for Kleefstra syndrome (KS) using patient-derived iPSC. We identified key differences in the growth behavior of KS spheroids determined by reduced proliferation marked by low Ki67 and high E-cadherin expression. Conversely, in the spheroid-based neurite outgrowth assay KS outperformed the control neurite outgrowth due to higher BDNF expression.

Assessment and Evaluation of Contemporary Approaches for Astrocyte Differentiation from hiPSCs: A Modeling Paradigm for Alzheimer's Disease.

Background: Astrocytes have recently gained attention as key players in the pathogenesis of neurodegenerative diseases, including Alzheimer's disease. Numerous differentiation protocols have been developed to study human astrocytes in vitro. However, the properties of the resulting glia are inconsistent, making it difficult to select an appropriate method for a given research question.

Correction: Kovács et al. ABT-333 (Dasabuvir) Increases Action Potential Duration and Provokes Early Afterdepolarizations in Canine Left Ventricular Cells via Inhibition of I. 2023, , 488.

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Assays for Monitoring Apixaban and Rivaroxaban in Emergency Settings, State-of-the-Art Routine Analysis, and Volumetric Absorptive Microsamples Deliver Discordant Results.

Our aim was to compare the performance of complementary clinical laboratory approaches to monitoring exposure to apixaban and rivaroxaban, the most prescribed direct-acting oral anticoagulants (DOAC's): an automated commercial anti-Xa chromogenic assay suitable for emergency and pre-surgery testing and a laboratory-developed liquid chromatography-tandem mass spectrometry (LC-MS/MS) method employed for non-emergency analysis in plasma and in dried blood volumetric absorptive microsamples (VAMS) collectible by the patients in their homes. The full validation of the LC-MS/MS method was performed. Cross-validation of the methodologies was accomplished by processing 60 specimens collected for whole blood count and DOAC monitoring in a central clinical laboratory.

Interventions to Increase Affordable Care Act Marketplace Enrollment: A Systematic Review and Meta-Analysis.

Over 10 million uninsured individuals are eligible for subsidized health insurance coverage through the Affordable Care Act (ACA) marketplaces, and millions more were projected to become eligible with the end of the federal COVID-19 Public Health Emergency in 2023. Individual studies on behaviorally informed interventions designed to encourage enrollment suggest that some are more effective than others. This study summarizes evidence on the efficacy of these interventions and suggests which administrative burdens might be most relevant for potential enrollees.

Email Nudges Increased Eligibility Verification And Subsidy Receipt In California's ACA Marketplace.

In the Affordable Care Act (ACA) Marketplaces, enrollees must periodically demonstrate their eligibility to receive income-linked health insurance premium subsidies. Marketplaces can verify eligibility using existing records, but only with consumers' consent, which must be renewed at specified times. In a randomized experiment in September 2020, we tested the effect of email nudges reminding consumers to provide consent for verification of their continued eligibility for premium subsidies in California's ACA Marketplace.

Contrast-enhanced computed tomography for ex vivo assessment of human kidneys: A proof-of-concept study.

Background: Ex vivo perfusion of transplant-declined human organs has emerged as a promising platform to study the response of an organ to novel therapeutic strategies. However, to fully realize the capability of this platform for performing translational research in human organ pathophysiology, there is a need for robust assays to assess organ function and disease. State-of-the-art research methods rely on analyses of biopsies taken during perfusion, which both damages the organ and only provides localized information.

Advances in the diagnosis of multiorgan involvement in systemic sclerosis: a focus on MRI.

Purpose Of Review: Systemic sclerosis (SSc) is a rare chronic multisystem autoimmune disease characterized by endothelial dysfunction, tissue hypoxia, and diffuse organ fibrosis. MRI provides a radiation free approach to noninvasively assess the key manifestations of SSc in multiple organs. The purpose of this review is to summarize recent advances in MRI techniques to provide diagnostic and prognostic information in patients with SSc.

The REPLUMLESS Transcription Factor Controls the Expression of the Gene Involved in Shoot and Fruit Patterning of .

The promoter of the () gene contains nine binding sites for the REPLUMLESS (RPL) transcription factor. In agreement, the expression of the kinase gene was strongly downregulated in the mutant. Comparing phenotypes of loss-of-function mutants, it was revealed that both genes are involved in stem growth, phyllotaxis, organization of the vascular tissues, and the replum, highlighting potential functional interactions.

Correction: Otgontamir et al. Assessing Changes in the Distribution Patterns of the European Wildcat in Hungary. 2024, , 785.

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Identification of a Novel Structural Class of H1 Inhibitors by Structure-Based Virtual Screening.

The human voltage-gated proton channel, hH1, is highly expressed in various cell types including macrophages, B lymphocytes, microglia, sperm cells and also in various cancer cells. Overexpression of H1 has been shown to promote tumor formation by highly metastatic cancer cells, and has been associated with neuroinflammatory diseases, immune response disorders and infertility, suggesting a potential use of hH1 inhibitors in numerous therapeutic areas. To identify compounds targeting this channel, we performed a structure-based virtual screening on an open structure of the human H1 channel.

Multi-modality imaging for assessment of the microcirculation in peripheral artery disease: Bench to clinical practice.

Peripheral artery disease (PAD) is a highly prevalent disorder with a high risk of mortality and amputation despite the introduction of novel medical and procedural treatments. Microvascular disease (MVD) is common among patients with PAD, and despite the established role as a predictor of amputations and mortality, MVD is not routinely assessed as part of current standard practice. Recent pre-clinical and clinical perfusion and molecular imaging studies have confirmed the important role of MVD in the pathogenesis and outcomes of PAD.

Automating benefits delivery: lowering health insurance costs for unemployment insurance recipients.

To provide financial relief to those affected by the COVID-19 pandemic, from July to December 2021, the American Rescue Plan Act temporarily expanded eligibility for cost-sharing reduction (CSR) silver 94 plans that cover 94% of medical costs for unemployment insurance (UI) recipients enrolled in the Affordable Care Act (ACA) Marketplaces. In June 2021, California's ACA Marketplace automatically redetermined eligibility and enrollment for 79 645 UI recipients so the enhanced subsidies would be applied without any action required among program participants. Using administrative data from California and a difference-in-differences design, we found that enrollees automatically moved to CSR silver 94 plans for the second half of 2021 saved $295 in premiums and $180 in out-of-pocket expenses (or $475 in total).

Tc/I Dual-Radionuclide Correction for Self-Scatter, Down-Scatter, and Tailing Effect for a CZT SPECT with Varying Tracer Distributions.

SPECT systems distinguish radionuclides by using multiple energy windows. For CZT detectors, the energy spectrum has a low energy tail leading to additional crosstalk between the radionuclides. Previous work developed models to correct the scatter and crosstalk for CZT-based dedicated cardiac systems with similar Tc/I tracer distributions.

Perceptual Expectations Are Reflected by Early Alpha Power Reduction.

The predictability of a stimulus can be characterized by its transitional probability. Perceptual expectations derived from the transitional probability of the stimulus were found to modulate the early alpha oscillations in the sensory regions of the brain when neural responses to expected versus unexpected stimuli were compared. The objective of our study was to find out the extent to which this low-frequency oscillation reflects stimulus predictability.