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Variations over time in proximal femoral strength in young adult men are not explained by areal bone mineral density alone

The decline in areal BMD (aBMD) in men may start as early as age 19, but it is debated whether proximal femoral strength follows the same pattern. We measured FN aBMD in a cross-sectional cohort of 1101 men aged 18-28 yr with two-dimensional DXA. Body height, weight, jump height, grip strength, and maximum knee extension torque muscle strength were measured with standard tests, after which BMI was

Workload reduction of digital breast tomosynthesis screening using artificial intelligence and synthetic mammography : a simulation study

Purpose: To achieve the high sensitivity of digital breast tomosynthesis (DBT), a time-consuming reading is necessary. However, synthetic mammography (SM) images, equivalent to digital mammography (DM), can be generated from DBT images. SM is faster to read and might be sufficient in many cases. We investigate using artificial intelligence (AI) to stratify examinations into reading of either SM or

Cardiovascular disease and beta-cell function at diagnosis of serologically defined adult-onset type 1 and type 2 diabetes in two Swedish cohorts 15 years apart

OBJECTIVES: To describe the prevalence of cardiovascular disease (CVD) at the time of diagnosis of adult-onset type 1 (T1D) and type 2 (T2D) diabetes, in a recent cohort and compare to a previous cohort from the same region. Further, to explore factors influencing the prevalence of pre-existing CVD, including age, sex, body mass index (BMI) and C-peptide; in the later cohort also heart failure, hy

Neuronal endolysosomal alterations induced by Apolipoprotein E4 emerge over time in primary neurons

Apolipoprotein E4 (ApoE4), the major genetic risk factor for Alzheimer's disease (AD), is vital for understanding cellular processes involved in AD pathogenesis. Evidence implicates endosomes as a central player in AD, where endosomal enlargement in neurons is among the earliest changes in AD. This enlargement was reported to be enhanced in APOE4 carriers. Cells internalize ApoE into endosomes for

Accurate genotype-based demultiplexing of single cell RNA sequencing samples from non-human animals

Single cell sequencing technologies (scRNA-seq, scATAC-seq, etc.) have revolutionized the study of complex tissues and unique organisms, providing researchers with a much needed species agnostic tool to study biological processes at the cellular level. To date, scRNA-seq technologies are expensive, require sufficient cell quantities, and need biological replicates to avoid batch effects or artifac

Prdm16 amplifies Notch signaling and suppresses venous lineage specification to prevent arteriovenous malformations during vascular development

Proper arterial versus venous endothelial lineage identity is required to establish a hierarchical network of arteries and veins and prevent the occurrence of life-threatening arteriovenous malformations. The molecular mechanisms that govern arteriovenous lineage specification remain however incompletely understood. Here, we demonstrate that the transcription factor Prdm16 is expressed in arterial

Sequencing and chromosome-scale assembly of the giant Pleurodeles waltl genome

The Iberian ribbed newt (Pleurodeles waltl) constitutes a central model for probing the basis of vertebrate regeneration. Here, we present the sequencing and chromosome-scale assembly of the 20.3Gb P. waltl genome, which exhibits the highest level of contiguity and completeness among giant genome assemblies. We uncover that DNA transposable elements are the major contributors to its expansion, wit

Thin-channel AlGaN/GaN/AlN double heterostructure HEMTs on AlN substrates via hot-wall MOCVD

III-Nitride high-electron mobility transistors (HEMTs) grown on AlN substrates offer significant advantages for high-power, high-frequency applications due to AlN high thermal conductivity and ultra-wide bandgap. However, achieving high-quality thin GaN channel layers on AlN is challenging because of lattice mismatch, which leads to columnar growth. In this work, we present the development of a tw

Bone shape changes over two years following acute anterior cruciate ligament injury: Reconstructed vs non-reconstructed knees

Objective: To determine bone shape changes over two years after acute anterior cruciate ligament (ACL) injury and to compare knees treated with ACL reconstruction (ACLR) vs no ACLR. Design: We used prospective data involving 129 young adults (46 ​% female, mean age 25 years) with recent ACL injury from a subcohort within the prospective multicenter NACOX study. Patients were treated according to S

Access of medication review for people living with dementia : An analysis of inequality using Swedish register data

INTRODUCTIONThis study examines medication reviews (MRs) among people living with dementia (PWD) in Sweden, focusing on frequency and factors influencing access.METHODSUsing nationwide register data, all diagnosed PWD from 2010 to 2016 were assessed for MR receipt in 2015 and/or 2016. The analysis guided by the Andersen healthcare utilization framework, considered predisposing, enabling, and need-

Associations between biomarkers and p-wave indices in relation to atrial fibrillation development in heart failure patients

BACKGROUND: The predictive value of atrial conduction abnormalities, reflected by P-wave indices (PWI), and their association with biomarkers signaling fibrosis for the development of atrial fibrillation (AF) in patients with heart failure (HF) remains underexplored.OBJECTIVE: We aim to investigate the associations between PWI, fibrosis biomarkers, and the risk of incident AF in patients with HF.M

Human Brain Cell-Type-Specific Aging Clocks Based on Single-Nuclei Transcriptomics

Aging is the primary risk factor for most neurodegenerative diseases, yet the cell-type-specific progression of brain aging remains poorly understood. Here, human cell-type-specific transcriptomic aging clocks are developed using high-quality single-nucleus RNA sequencing data from post mortem human prefrontal cortex tissue of 31 donors aged 18–94 years, encompassing 73,941 high-quality nuclei. Di

Direct Imaging of Nanoscale Ferroelectric Domains and Polarization Reversal in Ferroelectric Capacitors

Ferroelectric thin films present a powerful platform for next-generation computing and memory applications. However, domain morphology and dynamics in buried ferroelectric stacks have remained underexplored, despite their importance for real device performance. Here, nanoprobe X-ray diffraction (nano-XRD) is used to image ferroelectric domains inside BiFeO3-based capacitors, revealing local disord

The melanoma MEGA-study : Integrating proteogenomics, digital pathology, and AI-analytics for precision oncology

Melanoma remains the most aggressive form of skin cancer, characterized by high metastatic potential, genetic heterogeneity, and resistance to conventional therapies. The Melanoma MEGA-Study is a multi-center initiative designed to address these clinical challenges by integrating advanced proteogenomic profiling, clinical metadata, with AI-driven digital pathology and machine learning analytics, a

Captivating bimolecular photoredox dynamics of a ligand-to-metal charge transfer complex

Transition metal complexes featuring ligand-to-metal charge transfer (LMCT) excited states have been identified as promising candidates for driving electron transfer processes. To obtain an efficient system based on photo-induced bimolecular electron transfer, it is required that (1) photo-induced charge separation (CS) is faster than charge recombination (CR) of the separated charges, and (2) CR

Hypothermia after Cardiac Arrest in Large Animals (HACA-LA) : a randomized controlled experimental study

Background: Induced hypothermia after cardiac arrest is neuroprotective in several animal models of cardiac arrest, but few high-quality studies have been conducted in larger animals. Recent clinical trials have questioned the beneficial effects of post-ischemic hypothermia. This study investigated whether immediate cooling or a 2-h delay in cooling to 33 °C after cardiac arrest was neuroprotectiv

High- and Low-Fat Dairy Consumption and Long-Term Risk of Dementia : Evidence From a 25-Year Prospective Cohort Study

BACKGROUND AND OBJECTIVES: The association between dairy intake and dementia risk remains uncertain, especially for dairy products with varying fat contents. The aim of this study was to investigate the association between high-fat and low-fat dairy intake and dementia risk.METHODS: This study used data from a prospective cohort in Sweden, the Malmö Diet and Cancer cohort, which consisted of commu

Trapping, coalescence, and splitting of drops in an ultrasound-actuated microcavity

Droplets are sophisticated micro-compartments crucial for lab-on-a-chip and bio-medical applications. There have been significant efforts towards generating monodisperse droplets as the uniformity of droplets affects performance. Recently, we introduced a new method to continuously reform existing emulsions improving monodispersity in an ultrasound-actuated microcavity via a trap-coalesce-split me

Human bone marrow organoids : emerging progress but persisting challenges

Organoid systems hold promise as miniaturized in vitro platforms that model developmental and pathological processes. However, the engineering of human bone marrow organoids (BMOs) has been a long-standing challenge. Recently, the field has witnessed the emergence of BMO-like systems, a potential paradigm shift for the study of human hematopoiesis and associated niche elements. Published protocols

Antisecretory factor as add-on treatment for newly diagnosed glioblastoma, IDH wildtype : study protocol for a randomized double-blind placebo-controlled trial

Background: Glioblastoma, IDH wildtype is the most common primary malignant brain tumor in adults. Despite best available treatment, prognosis remains poor. Current standard therapy consists of surgical tumor removal followed by radiotherapy and chemotherapy with the alkylating agent temozolomide. Antisecretory factor (AF), an endogenous protein, may potentiate the effect of temozolomide and allev