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Amyloid β Peptide Modifies Membrane Architecture and Surface Electrostatic Properties of Human Red Blood Cells.

Abnormal accumulation of amyloid-beta (Aβ) peptides in the brain is a hallmark of Alzheimer's disease (AD). Importantly, the peripheral blood cells are also exposed to the effects of pathological peptides that accumulate in AD. Herein, the interaction of Aβ42 oligomers (Aβ42) with human red blood cells (RBCs) and erythrocyte ghosts as in vitro models for AD is studied combining fluorescence spectroscopy, fluorescence microscopy, and electrokinetics. The binding of Aβ42 to RBCs was evidenced by the use of a fluorescent-labeled peptide. The membrane lipid order increased with the increase in bot

Sleep macro-architecture, nocturnal hypoxemia, and Alzheimer's disease-related MRI patterns among diverse older adults.

INTRODUCTION: Sleep patterns change with aging, yet their relationship with brain health, particularly Alzheimer's disease (AD)-related MRI patterns among diverse older adults is not clear. METHODS: We cross-sectionally studied community-dwelling Non-Hispanic White (NHW), Hispanic, and Black participants recruited from the Health and Aging Brain Study-Health Disparities (HABS-HD)-Dormir Study, who underwent WatchPAT and brain MRI. RESULTS: A total of 842 participants (34% male; 42% NHW, 33% Hispanic, and 25% Black; mean age 66.1 ± 8.6 years) were included. Greater light sleep percentage and

Segmentation of gastroesophageal reflux events using a semi-U-Net architecture with 1D/2D CNNs.

U-Net has gained traction in biomedical signal processing, particularly for segmenting 1D waveforms. Building on this success, we propose a U-Net-inspired architecture that integrates both 2D and 1D CNNs to effectively learn and segment gastroesophageal reflux (GER) events from Multichannel Intraluminal Impedance (MII) signals-specifically, a 6-channel 1D impedance signal. Current methods for GER detection are limited by the absence of efficient software, leading to time-consuming manual interpretation that is prone to errors. As a key contribution, we are also releasing the dataset of MII sig…

Genetic architecture of primary biliary cholangitis: strong evidence for HLA and non-HLA risk loci.

BACKGROUND: Despite extensive genetic studies investigating primary biliary cholangitis (PBC), the mechanistic basis of risk-associated vari … 43×10-5). CONCLUSION: This study provides the most comprehensive synopsis to date of PBC's genetic architecture, highlighting robust HLA and non-HLA risk loci. SYSTEMATIC REVIEW REGISTRATION: https:///www.crd.york.ac.uk/PROSPERO/view/CRD42021282146, identifier CRD42021282146.

Rapamycin immunomodulation utilizes time-dependent alterations of lymph node architecture, leukocyte trafficking, and gut microbiome.

Transplant recipients require lifelong, multimodal immunosuppression to prevent rejection by reducing alloreactive immunity. Rapamycin is known to modulate adaptive and innate immunity, but its full mechanism remains incompletely understood. We investigated the understudied effects of rapamycin on lymph node (LN) architecture, leukocyte trafficking, and gut microbiome and metabolism after 3 (early), 7 (intermediate), and 30 (late) days of rapamycin treatment. Rapamycin significantly reduced CD4+ T cells, CD8+ T cells, and Tregs in peripheral LNs, mesenteric LNs, and spleen. Rapamycin induced e…

Giga-Voxel Multiscale Composite Architecture Mirrored Through a Data-to-Model Closed-Loop Digital Twin.

Giga-voxel digital models offer abundant geometric detail; however, no mainstream method currently exists to efficiently distribute individu … nization at the giga-voxel level, the digital unit twins are methodically expanded into cohesive 3D architectures based on assembly relationship at length scales of more than four orders of magnitude. Remarkably, this hierarchical model provides intricate insight into micro-to-macro geometrics while preserving the intrinsic microstructure.

Factor H-related 1 and heparan sulfate architecture contribute to complement dysregulation in C3 glomerulopathy.

INTRODUCTION: Dysregulation of the alternative pathway of complement underlies the pathogenesis of C3 glomerulopathy (C3G). Because Factor H … as renal function declines, a change in the FHR-1:FH ratio combined with changes in heparan sulfate architecture increase complement activity. These findings suggest that complement activity may contribute to the chronic inflammation and progression of renal damage associated with chronic kidney disease.

The Cognitive Architecture of Obsessional Doubt: Inferential Confusion and Feared Selves in OCD-Relevant Intrusions.

Although previous research has examined the individual roles of unwanted intrusive thoughts (UITs), inferential confusion and feared selves in obsessive-compulsive disorder (OCD), no study to date has evaluated their combined effects on OCD severity. This is particularly relevant given that the inference-based approach (IBA) posits a close link between inferential confusion and feared selves in the context of obsessional doubt. The present study with a cross-sectional design investigated the role of inferential confusion and feared selves in mediating the relationship between OCD-relevant UITs

Mapping the Non-Canonical Splicing Variants: Decrypting the Hidden Genetic Architecture of Idiopathic Male Infertility.

Canonical splicing variants (±2) contribute significantly to genetic disorders, yet the clinical significance of non-canonical splicing variants (NCSVs) that occur outside of canonical splicing sites remains unknown in male infertility. A comprehensive evaluation of reported studies on hereditary male infertility revealed that the 2,404 pathogenic variants contained 120 canonical splicing variants and 32 NCSVs. Among the remaining 2,252 variants, the splicing variant analytical strategy identified 17 novel NCSVs that disrupt normal mRNA splicing from previously classified missense variants. Th

Truncating mutations in BBS10 and BBS12 impair proteostasis and ciliary architecture in Bardet-Biedl Syndrome.

Bardet-Biedl Syndrome (BBS) is a rare autosomal recessive ciliopathy characterized by genetic heterogeneity. Despite significant progress in understanding the BBSome-coding genes associated with ciliopathies, the pathogenesis linked to mutations in chaperonin-coding genes (BBS6, BBS10, and BBS12) remains poorly defined. This study aims to confirm the genetic diagnosis of BBS and elucidate the pathological mechanisms in causative genes of BBS10 and BBS12. Clinical evaluations were performed on BBS patients, followed by targeted next-generation sequencing (NGS) to identify disease-causing varian

Shared Genetic Architecture and Causal Relationship Between Serum 25-Hydroxyvitamin D and Bone Mineral Density.

CONTEXT: Despite the well-established regulatory role of vitamin D in maintaining bone health, little is known about the shared genetics and causality of the association between serum 25-hydroxyvitamin D (25OHD) and bone mineral density (BMD). OBJECTIVE: We aimed to investigate the shared genetic architecture and causal relationship between serum 25OHD and BMD, providing insights into their underlying biological mechanisms. METHODS: Leveraging individual-level data from the UK Biobank (UKB) cohort and summary-level data from the genome-wide association studies (GWASs) conducted on European i…

SNet: A novel convolutional neural network architecture for advanced endoscopic image classification of gastrointestinal disorders.

With the intent of assisting gastroenterologists from all over the world, the proposed work aims to eliminate the effort required to achieve … n is selected based on proposed minimum redundancy maximum relevance (MRMR) algorithm. The proposed architecture has been evaluated using a range of performance metrics, such as accuracy, sensitivity, specificity, and Area under curve (AUC). With classification accuracy as the main metric, the achieved accuracy is 98.45% on the Kvasir v1, and 97.83% on the Kva …

MDNCT: a multi-domain neurocognitive transformer architecture approach for early prediction of autism spectrum disorders.

Intellectual disability (ID) refers to a disorder involving intelligence and adaptive behavior that meets specific criteria involving deviance from the norm in terms of degree. ID is more common in males than females, and the causes can be genetic or environmental. This population has historically been characterized by significantly decreased life expectancy because they have not been diagnosed and treated for such diseases as cardiovascular and respiratory ones. However, medical progress in the last few years has slightly narrowed this gap, highlighting that understanding ID requires its cons

A hybrid inception-dilated-ResNet architecture for deep learning-based prediction of COVID-19 severity.

Chest computed tomography (CT) scans are essential for accurately assessing the severity of the novel Coronavirus (COVID-19), facilitating appropriate therapeutic interventions and monitoring disease progression. However, determining COVID-19 severity requires a radiologist with significant expertise. This study introduces a pioneering utilization of deep learning (DL) for evaluate COVID-19 severity using lung CT images, presenting a novel and effective method for assessing the severity of pulmonary manifestations in COVID-19 patients. Inception-Residual networks (Inception-ResNet), advanced h

Pyruvate kinase M2 -mediated histone lactylation alters three-dimensional genomic architecture in polycystic ovary syndrome.

Polycystic ovary syndrome (PCOS) is a frequent endocrine and metabolic imbalance that typically occurs in women of reproductive age. Its mol … n lysine residues 9 and 18 is linked to nPKM2 binding to the genome, changing the three-dimensional architecture of the genome. Genomic compartment switching, topologically associated domain fusion, and novel enhancer-promoter interactions subsequently enhance the expression of PCOS-related genes, including CYP17A1 and CYP11A1. In mice, ectopic expression of P …

Correlative 3D imaging method for analysing lesion architecture in susceptible mice infected with Mycobacterium tuberculosis.

Tuberculosis (TB) is characterized by the formation of heterogeneous, immune-rich granulomas in the lungs. Host and pathogen factors contribute to this heterogeneity, but the molecular and cellular drivers of granuloma diversity remain inadequately understood owing to limitations in experimental techniques. In this study, we developed an approach that combines passive CLARITY (PACT)-based clearing with light-sheet fluorescence microscopy to visualize lesion architecture and lung involvement in Mycobacterium tuberculosis-infected C3HeB/FeJ mice. Three-dimensional rendering of post-mortem lungs …

Mitogenomic architecture and phylogenetic placement of Ctenophthalmus yunnanus and Frontopsylla diqingensis: insights from comparative genomics.

Fleas are among the most common hematophagous ectoparasites of mammals. In addition to causing allergic dermatitis and anemia, they can transmit various pathogens. Currently, molecular data on fleas remain relatively scarce. This study sequenced the complete mitochondrial genomes of Ctenophthalmus yunnanus (first mitogenome reported) and Frontopsylla diqingensis from Yunnan, China, using Illumina sequencing. Comparative analyses with existing flea mitogenomes available in NCBI included nucleotide diversity and selective pressure assessments. Phylogenetic trees were reconstructed based on the P

Геномическая архитектура циркулирующих уровней цитокина указывает на цели лечения иммунных заболеваний.

Циркуляция цитокинес оркестрирует иммунную реакцию и является перспективной целью для лечения иммунных и подстрекательских заболеваний. Изучение генетической архитектуры циркулирующих уровней цитокина могло бы дать ключевые знания о причинно-следственных посредниках в связи с человеческими заболеваниями. Здесь мы провели исследования по общегеномной ассоциации (GWAS) 40 циркуляции цитокинов в мета-анализах 74,783 Люди. Мы обнаружили 359 между уровнями цитокина и вариантами 169 независимых лоси, включая 150 Транс- и 19 Носящая ножи лоси. Интеграция с транскриптивомными данными указывает на ключ

Совпадение в аннотации оригинала
Circulating cytokines orchestrate immune reactions and are promising drug targets for immune-mediated and inflammatory diseases. Exploring the genetic architecture of circulating cytokine levels could yield key insights into causal mediators of human disease. Here, we performed genome-wide association studies (GWAS) for 40 circulating cytokines in meta-analy…

Basis of executive functions in fine-grained architecture of cortical and subcortical human brain networks.

Theoretical models suggest that executive functions rely on both domain-general and domain-specific processes. Supporting this view, prior brain imaging studies have revealed that executive activations converge and diverge within broadly characterized brain networks. However, the lack of precise anatomical mappings has impeded our understanding of the interplay between domain-general and domain-specific processes. To address this challenge, we used the high-resolution multimodal magnetic resonance imaging approach of the Human Connectome Project to scan participants performing 3 canonical exec

Longitudinal multi-omics analysis of host microbiome architecture and immune responses during short-term spaceflight.

Maintenance of astronaut health during spaceflight will require monitoring and potentially modulating their microbiomes. However, documenting microbial shifts during spaceflight has been difficult due to mission constraints that lead to limited sampling and profiling. Here we executed a six-month longitudinal study to quantify the high-resolution human microbiome response to three days in orbit for four individuals. Using paired metagenomics and metatranscriptomics alongside single-nuclei immune cell profiling, we characterized time-dependent, multikingdom microbiome changes across 750 samples