Philanthropic drug development (PDD) addresses gaps in traditional pharmaceutical innovation, particularly for rare and underserved diseases. Cost and timeline challenges discourage new investments, especially in niche therapeutic areas. Patient organizations (POs) are uniquely positioned to help to reduce development challenges by providing expertise, supporting early research, fostering collaborations, and driving patient-centered clinical trials.
View Article and Find Full Text PDFFor optimizing production yield while limiting negative environmental impact, sustainable agriculture benefits from real-time, on-the-spot chemical analysis of soil at low cost. Colorimetric paper sensors are ideal candidates, however, their automated readout and analysis in the field is needed. Using mobile technology for paper sensor readout could, in principle, enable the application of machine-learning models for transforming colorimetric data into threshold-based classes that represent chemical concentration.
View Article and Find Full Text PDFMitochondria play a central role in nutrient metabolism, besides being responsible for the production of adenosine triphosphate (ATP), the main source of cellular energy. However, the ATP production process is associated with the generation of reactive oxygen species (ROS), which excessive accumulation can cause mitochondrial dysfunction. This dysfunction, in turn, causes the accumulation of fatty acids in the adipose tissue, triggering a local inflammatory process that can evolve into systemic inflammation.
View Article and Find Full Text PDFJ Am Board Fam Med
December 2024
Primary care researchers are increasingly at the forefront of developing innovations and new research methods to address complex issues in health care, including multi-morbidity, social determinants of health, health equity, managing population health in clinical practice, patient satisfaction, and provider burnout. Research demonstrates that "primary care is the only health care component where an increased supply is associated with better population health and more equitable outcomes." As a primary care specialty, family medicine has evolved beyond its initial focus on clinical practice and education to realizing the imperative for the discipline to robustly engage in research and embrace the responsibility to generate the evidence that drives changes in primary care practice and policy.
View Article and Find Full Text PDFThis study evaluated the prevalence of women attending gynecological consultations who wish to discuss weight issues, barriers preventing physicians from addressing obesity, and differences in perceptions between patients and physicians. A cross-sectional study was conducted from July 2021 to June 2022 at the , including 404 female patients (median age: 47.5 years) and 140 gynecologists.
View Article and Find Full Text PDFThe direct epitaxial growth of high-quality III-V semiconductors on Si is a challenging materials science problem with a number of applications in optoelectronic devices, such as solar cells and on-chip lasers. We report the reduction of dislocation density in GaAs solar cells grown directly on nanopatterned V-groove Si substrates by metal-organic vapor-phase epitaxy. Starting from a template of GaP on V-groove Si, we achieved a low threading dislocation density (TDD) of 3 × 10 cm in the GaAs by performing thermal cycle annealing of the GaAs followed by growth of InGaAs dislocation filter layers.
View Article and Find Full Text PDFOne key component of study design in population genetics is the "geographic breadth" of a sample (i.e., how broad a region across which individuals are sampled).
View Article and Find Full Text PDFThermophotovoltaics, devices that convert thermal infrared photons to electricity, offer a key pathway for a variety of critical renewable energy technologies including thermal energy storage, waste heat recovery, and direct solar-thermal power generation. However, conventional far-field devices struggle to generate reasonable powers at lower temperatures. Near-field thermophotovoltaics provide a pathway to substantially higher powers by leveraging photon tunneling effects.
View Article and Find Full Text PDFIncreasing uptake and completion of Pulmonary Rehabilitation in people with COPD has the potential to deliver health benefit and reduce health inequalities. We have quantified the cost-effectiveness of enhancing PR access and completion by reviewing the cost-effectiveness literature for PR in COPD. A literature review identified studies that provided cost-effectiveness evidence for PR compared to no PR.
View Article and Find Full Text PDFIt is commonly reported that rare variants may be more functionally related to complex diseases than common variants. However, individual rare variant association tests remain challenging due to low minor allele frequency in the available samples. This paper proposes an expectation maximization variable selection (EMVS) method to simultaneously detect common and rare variants at the individual variant level using family trio data.
View Article and Find Full Text PDFBlockade of the immune checkpoints programmed death-1 (PD-1) and cytotoxic lymphocyte antigen 4 has improved outcomes for patients with hepatocellular carcinoma (HCC), yet most still fail to achieve objective clinical benefit. MET plays key roles in both HCC tumorigenesis and immunosuppressive conditioning; however, inhibition of MET causes upregulation of PD-ligand 1 (PD-L1) suggesting the use of these inhibitors in the context of PD-1 blockade. We sought to investigate across the Hepa1-6, HCA-1 and diethylnitrosamine (DEN) models of HCC whether the combination of more specific type I versus more pleiotropic type II MET inhibitors would confer superior outcomes in combination with PD-1 blockade.
View Article and Find Full Text PDFBecause of the depth of the hippocampal-entorhinal complex (HC-EC) in the brain, understanding of its role in spatial navigation via neuromodulation was limited in humans. Here, we aimed to better elucidate this relationship in healthy volunteers, using transcranial temporal interference electric stimulation (tTIS), a noninvasive technique allowing to selectively neuromodulate deep brain structures. We applied tTIS to the right HC-EC in either continuous or intermittent theta-burst stimulation patterns (cTBS or iTBS), compared to a control condition, during a virtual reality-based spatial navigation task and concomitant functional magnetic resonance imaging.
View Article and Find Full Text PDFBackground: Often after large animal experiments in spinal research, the question arises-histology or biomechanics? While biomechanics are essential for informed decisions on the functionality of the therapy being studied, scientists often choose histological analysis alone. For biomechanical testing, for example, flexibility, specimens must be shipped to institutions with special testing equipment, as spine testers are complex and immobile. The specimens must usually be shipped frozen, and, thus, biological and histological investigations are not possible anymore.
View Article and Find Full Text PDFIntroduction: This study aimed to characterize the severity of bleeding and its association with short-term neurologic outcomes in pediatric ECMO.
Methods: Multicenter retrospective cohort study of pediatric ECMO patients at 10 centers utilizing the Pediatric ECMO Outcomes Registry (PEDECOR) database from December 2013-February 2019. Subjects excluded were post-cardiac surgery patients and those with neonatal pathologies.
School closures and restrictions related to the COVID-19 pandemic changed opportunities for youth physical activity (PA). We sought to identify school and other contextual conditions associated with youth PA during the COVID-19 pandemic. A nationally representative, United States sample consisted of 500 parents of children ages 6-10 years old and 500 parent-child dyads with children and adolescents ages 11-17 years old who completed a web-based questionnaire.
View Article and Find Full Text PDFBackground: Early exercise intervention studies showed promising positive effects of physical exercising on post-COVID-19 symptoms; however, little is known about long-term training adherence and what influences it.
Material And Methods: Semi-structured interviews were conducted with 17 participants of the 8‑week original exercise intervention study. Facilitators and barriers were identified via thematic analysis and compared between those participants who continued their regular exercise behavior (continuous exercise group, CEG, n = 7) and those who stopped exercising (discontinuous exercise group, DEG, n = 10).
Automated and high-throughput quantum chemical investigations into chemical processes have become feasible in great detail and broad scope. This results in an increase in complexity of the tasks and in the amount of generated data. An efficient and intuitive way for an operator to interact with these data and to steer virtual experiments is required.
View Article and Find Full Text PDFAdverse events (AEs) experienced by children and adults with congenital heart disease (CHD) on ventricular assist devices (VADs) are sometimes unique to these populations. The Advanced Cardiac Therapies Improving Outcomes Network (ACTION) and the Academic Research Consortium (ARC) aimed to harmonize definitions of pediatric and CHD AEs for use in clinical trials, registries, and regulatory evaluation. Data from the ACTION registry and adjudication committee were used to adapt general mechanical circulatory support ARC definitions.
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