Isovitexin targets SIRT3 to prevent steroid-induced osteonecrosis of the femoral head by modulating mitophagy-mediated ferroptosis.

The death of osteoblasts induced by glucocorticoid (GC)-mediated oxidative stress plays a crucial role in the development of steroid-induced osteonecrosis of the femoral head (SIONFH). Improving bone formation driven by osteoblasts has shown promising outcomes in the prognosis of SIONFH. Isovitexin has demonstrated antioxidant properties, but its therapeutic effects on GC-induced oxidative stress and SIONFH remain unexplored.

Optimizing autonomous artificial intelligence diagnostics for neuro-ocular health in space missions.

Spaceflight-Associated Neuro-Ocular Syndrome (SANS) presents a critical risk in long-duration missions, with microgravity-induced changes that threaten astronaut vision and mission outcomes. Current SANS monitoring, limited to pre- and post-flight exams, lacks in-flight diagnostics, highlighting an urgent need for autonomous tools capable of real-time assessment. Grok, an AI platform by xAI, offers promising potential as an advanced diagnostic tool for space-based health monitoring.

Role of miRNAs as epigenetic regulators of immune checkpoints in lung cancer immunity.

The advent of immunotherapy in cancer has provided new avenues in the treatment of many malignancies at various stages. Specifically, immune checkpoint inhibitors (ICIs) have transformed the field of lung cancer treatment. However, since some tumors can evade the immune system, not all patients respond properly.

Revisiting epigenetic regulation in cancer: Evolving trends and translational implications.

Cancer is a leading cause of mortality worldwide. The evolving role of epigenetics and tumor microenvironments of cancer pose significant challenges to the management of cancer. Besides genetics, epigenetic changes play a crucial role in the alteration of cellular machinery, progression, metastasis, epithelial-mesenchymal transition, and chemoresistance.

[Guidelines for presymptomatic genetic testing for adult-onset hereditary neuromuscular diseases in Japan].

In Japan, there are no nationwide guidelines for presymptomatic testing for hereditary neuromuscular diseases. Although each institution has been dealing with this situation by using their own procedures to date, it is necessary to develop a standardized guidelines based on the Japanese medical system, because the development of disease-modifying therapies has progressed, and we are entering an era in which early diagnosis and early treatment are necessary. The guidelines presented here were devised by the Committee on Medical Genetics of the Japan Neurological Society.

Posttranslational modifications in cardiac metabolic remodeling mediated by metabolites: Implications for disease pathology and therapeutic potential.

The nonenergy-producing or biomass-accumulating functions of metabolism are attracting increasing attention, as metabolic changes are gaining importance as discrete signaling pathways in modulating enzyme activity and gene expression. Substantial evidence suggests that myocardial metabolic remodeling occurring during diabetic cardiomyopathy, heart failure, and cardiac pathological stress (e.g.

Relationship among depression, fatigue, and sleep after traumatic brain injury: The role of physical exercise as a non-pharmacological therapy.

Traumatic brain injury (TBI) is a burdensome condition frequently associated with an increased risk of psychiatric disorders. Although the exact molecular signaling pathways have not yet been fully defined, the compromised integrity of functional brain networks in regions such as the prefrontal cortex and anterior cingulate cortex has been linked to persistent symptoms, including depression, fatigue, and sleep disorders. Understanding how TBI affects neural physiology enables the development of effective interventions.

Pediatric-type Myoid Neoplasms of Somatic Soft Tissue: A Clinicopathological and Molecular Genetic Study of 78 Tumors, Highlighting Indolent Clinical Behavior and Frequent SRF Gene Rearrangements.

Soft tissue tumors with smooth muscle differentiation are rare in pediatric patients. Despite often showing morphologic features sufficient for classification as "leiomyosarcoma" in adults (e.g.

Genomic evolution of SARS-CoV-2 in Morocco: Insights from Whole Genome Sequences collected from 2020 to 2024.

This study investigates the evolution and genetic diversity of SARS-CoV-2 strains circulating in Morocco to track the spread, clade distributions and mutations of the virus across various regions from February 2020 to June 2024. The genome sequences were retrieved from the GISAID database. A total of 2630 SARS-CoV-2 genome sequences were analyzed using bioinformatic tools such as Nextclade, followed by phylogenetic and statistical analyses.

Neurobiology, Molecular Pathways, and Environmental Influences in Antisocial Traits and Personality Disorders.

Personality disorders (PDs) are psychiatric conditions characterized by enduring patterns of cognition, emotion, and behaviour that deviate significantly from cultural norms, causing distress or impairment. The aetiology of PDs is complex, involving both genetic and environmental factors. Genetic studies estimate the heritability of PDs at 30% to 60%, implicating genes involved in neurotransmitter regulation, such as those for serotonin transporters and dopamine receptors.

Lactylation: The Metabolic Accomplice Shaping Cancer's Response to Radiotherapy and Immunotherapy.

Protein lactylation, an emerging post-translational modification, is providing new insights into tumor biology and challenging our current understanding of cancer mechanisms. Our review illuminates the intricate roles of lactylation in carcinogenesis, tumor progression, and therapeutic responses, positioning it as a critical linchpin connecting metabolic reprogramming, epigenetic modulation, and treatment outcomes. We provide an in-depth analysis of lactylation's molecular mechanisms and its far-reaching impact on cell cycle regulation, immune evasion strategies, and therapeutic resistance within the complex tumor microenvironment.

Development and applications of a machine learning model for an in-depth analysis of pentylenetetrazol-induced seizure-like behaviors in adult zebrafish.

Epilepsy, a neurological disorder causing recurring seizures, is often studied in zebrafish by exposing animals to pentylenetetrazol (PTZ), which induces clonic- and tonic-like behaviors. While adult zebrafish seizure-like behaviors are well characterized, manual assessment remains challenging due to its time-consuming nature, potential for human error/bias, and the risk of overlooking subtle behaviors. Aiming to circumvent these issues, we developed a machine learning model for automating the analysis of subtle abnormal and seizure-like behaviors in PTZ-exposed adult zebrafish.

Rhythm is essential: Unraveling the relation between the circadian clock and cancer.

Physiological processes such as the sleep-wake cycle, metabolism, hormone secretion, neurotransmitter release, sensory capabilities, and a variety of behaviors, including sleep, are controlled by a circadian rhythm adapted to 24-hour day-night periodicity. Disruption of circadian rhythm may lead to the risks of numerous diseases, including cancers. Several epidemiological and clinical data reveal a connection between the disruption of circadian rhythms and cancer.

Acute myeloid leukemia with t(8;21) translocation: Molecular pathogenesis, potential therapeutics and future directions.

Acute myeloid leukemia (AML) is a highly heterogeneous and aggressive blood cancer. Genetic abnormalities, such as the t(8;21) rearrangement, play a significant role in AML onset. This rearrangement leads to the formation of the RUNX1/RUNX1T1 fusion protein, disrupting gene regulation and genomic stability, ultimately causing full-blown leukemia.

Using Laboratory Test Results for Surveillance During a New Outbreak of Acute Hepatitis in 3-Week- to 5-Year-Old Children in the United Kingdom, the Netherlands, Ireland, and Curaçao: Observational Cohort Study.

Background: In March 2022, a concerning rise in cases of unexplained pediatric hepatitis was reported in multiple countries. Cases were defined as acute hepatitis with serum transaminases >500 U/L (aspartate transaminase [AST] or alanine transaminase [ALT]) in children aged 16 years or younger. We explored a simple federated data analytics method to search for evidence of unreported cases using routinely held data.

Methods of extraction of genetic material from hard tissues: A review of the 21st century advancements.

Skeletal remains are the only source of the genetic material of decomposed organisms or once-lived species. Unlike, soft tissues they are highly mineralized, and their anatomical and morphological structure prevents their deformation in the presence of adverse environmental factors. Therefore, bones and teeth protect the Deoxyribonucleic Acid (DNA) inside them.

Predictive complement biomarkers for relapse in neuromyelitis optica spectrum disorders.

Background: Biomarkers that predict disease activity and prognosis should be established for neuromyelitis optica spectrum disorders (NMOSD). In this study, we investigated the association between complement factors and the prognosis of NMOSD.

Methods: We validated laboratory parameters as potential prognostic factors in 34 patients with NMOSD (31 females and 3 males) whose serum was collected at the time of recurrence and who were subsequently followed-up for 3 years without the use of biologics.

Association of Epstein-Barr Virus and its clinical relevance in Human Papillomavirus-negative oral squamous cell carcinoma: A cohort study from South India.

Objective: The study assessed the prevalence and clinical implications of Epstein Barr Virus (EBV)-positive but Human Papillomavirus (HPV)-negative oral squamous cell carcinoma (OSCC) in a tertiary care hospital setting. The overall goal was to elucidate the potential impact of EBV on OSCC disease progression and prognosis.

Design: A total of 134 surgically resected and histopathologically confirmed OSCC tumor biopsies were collected from a tertiary care hospital.

Carbon monoxide-oxidising Pseudomonadota on volcanic deposits.

Carbon monoxide (CO) oxidising microorganisms are present in volcanic deposits throughout succession, with levels of vegetation and soil influencing the communities present. Carboxydovores are a subset of CO oxidisers that use CO as an energy source, which raises questions about the physiological and metabolic features that make them more competitive in harsh volcanic ecosystems. To address these questions, samples were taken from volcanic strata formed by eruptions from Calbuco Volcano (Chile) in 2015 (tephra) and 1917 (soil).

Water-regulated viscosity-plasticity phase transitions in a peptide self-assembled muscle-like hydrogel.

The self-assembly of small molecules through non-covalent interactions is an emerging and promising strategy for building dynamic, stable, and large-scale structures. One remaining challenge is making the non-covalent interactions occur in the ideal positions to generate strength comparable to that of covalent bonds. This work shows that small molecule YAWF can self-assemble into a liquid-crystal hydrogel (LCH), the mechanical properties of which could be controlled by water.

Transcriptome analysis reveals significant discrepancies between two in vitro models of host-trematode interaction.

Cell models emulating an in vitro parasitic infection can greatly improve our understanding of helminthiases. Nonetheless, it remains challenging to select an appropriate in vitro model to study molecular pathogenesis of infections by trematodes having a complex life cycle. Therefore, adequate models are in high demand.

Exploiting agri-food residues for kombucha tea and bacterial cellulose production.

Bio-valorization of agri-food wastes lies in their possible conversion into fermented foodstuffs/beverages and/or biodegradable polymers such as bacterial cellulose. In this study, three different kombucha cultures were formulated using agri-food waste materials, citrus fruit residues and used coffee grounds, as alternative carbon and nitrogen sources, respectively. Over 21 days of fermentation, the kinetic profile was followed by monitoring cell number, pH variation, minerals, trace elements and production of bacterial cellulose.

Comprehensive Analysis of Apigetrin's Effects on Liver Cancer Cells: Insights from Bioinformatics, In Vitro Studies, and Next-Generation Transcriptome Sequencing.

Despite numerous attempts to understand the molecular mechanisms behind the development of liver cancer, it continues to pose a significant worldwide health challenge. Transcriptome sequencing, a powerful tool in molecular biology, has played a pivotal role in uncovering the intricate gene expression profiles underlying hepatocellular carcinoma (HCC). In the present study, we identified a total of 808 differentially expressed genes (DEGs), with 584 exhibiting downregulation, and 224 showing upregulation following apigetrin treatment.

PSMA-targeted delivery of docetaxel in prostate cancer using small-sized PDA-based micellar nanovectors.

In this study, we present the first comparative analysis of active and passive drug delivery systems for docetaxel (DTX) in prostate cancer using supramolecular self-assembled micellar nanovectors. Specifically, we developed two novel micelles based on polydiacetylenic amphiphiles (PDA) for passive and active targeting. The active targeting micelles were designed with a prostate-specific membrane antigen (PSMA) ligand, ACUPA, to facilitate recognition by PSMA-positive cancer cells.

A quantitative intracellular peptide binding assay reveals recognition determinants and context dependence of short linear motifs.

Transient protein-protein interactions play key roles in controlling dynamic cellular responses. Many examples involve globular protein domains that bind to peptide sequences known as Short Linear Motifs (SLiMs), which are enriched in intrinsically disordered regions of proteins. Here we describe a novel functional assay for measuring SLiM binding, called Systematic Intracellular Motif Binding Analysis (SIMBA).