E-box independent chromatin recruitment turns MYOD into a transcriptional repressor.

MYOD is an E-box sequence-specific basic Helix-Loop-Helix (bHLH) transcriptional activator that, when expressed in non-muscle cells, induces nuclear reprogramming toward skeletal myogenesis by promoting chromatin accessibility at previously silent loci. Here, we report on the identification of a previously unrecognized property of MYOD as repressor of gene expression, via E-box-independent chromatin binding within accessible genomic elements, which invariably leads to reduced chromatin accessibility. MYOD-mediated repression requires the integrity of functional domains previously implicated in MYOD-mediated activation of gene expression.

Guidance and position of RINN22 regarding precision nutrition and nutriomics.

Background: Precision nutrition is based on the integration of individual´s phenotypical and biological characteristics including genetic variants, epigenetic marks, gut microbiota profiles and metabolites fingerprints as well as medical history, lifestyle practices, and environmental and cultural factors. Thus, nutriomics areas including Nutrigenomics, Nutrigenetics, Nutriepigenetics, Nutrimetabolomics, and Nutrimetagenomics have emerged to comprehensively understand the complex interactions between nutrients, diet, and the human body's molecular processes through precision nutrition.

Summary: This document from the Ibero-American Network of Nutriomics and Precision Nutrition (RINN22; https://rinn22.

Tenascin-C from the tissue microenvironment promotes muscle stem cell self-renewal through Annexin A2.

Skeletal muscle tissue self-repair occurs through the finely timed activation of resident muscle stem cells (MuSC). Following perturbation, MuSC exit quiescence, undergo myogenic commitment, and differentiate to regenerate the injured muscle. This process is coordinated by signals present in the tissue microenvironment, however the precise mechanisms by which the microenvironment regulates MuSC activation are still poorly understood.

Overcoming artificial structures in resolution-enhanced Hi-C data by signal decomposition and multi-scale attention.

Computational enhancement is an important strategy for inferring high-resolution features from genome-wide chromosome conformation capture (Hi-C) data, which typically have limited resolution. Deep learning has been highly successful in this task but we show that it creates prevalent artificial structures in the enhanced data due to the need to divide the large contact matrix into small patches. In addition, previous deep learning methods largely focus on local patterns, which cannot fully capture the complexity of Hi-C data.

DNA Methylation and Non-Coding RNAs in Metabolic Disorders: Epigenetic Role of Nutrients, Dietary Patterns, and Weight Loss Interventions for Precision Nutrition.

Background: Dysregulation of epigenetic processes and abnormal epigenetic profiles are associated with various metabolic disorders. Nutrition, as an environmental factor, can induce epigenetic changes through both direct exposure and transgenerational inheritance, continuously altering gene expression and shaping the phenotype. Nutrients consumed through food or supplementation, such as vitamin B12, folate, vitamin B6, and choline, play a pivotal role in DNA methylation, a critical process for gene regulation.

Structuring lipid nanoparticles, DNA, and protein corona into stealth bionanoarchitectures for in vivo gene delivery.

Lipid nanoparticles (LNPs) play a crucial role in addressing genetic disorders, and cancer, and combating pandemics such as COVID-19 and its variants. Yet, the ability of LNPs to effectively encapsulate large-size DNA molecules remains elusive. This is a significant limitation, as the successful delivery of large-size DNA holds immense potential for gene therapy.

Methyl-donor supplementation in women with systemic lupus erythematosus with different nutritional status: the protocol for a randomised, double-blind, placebo-controlled trial.

Introduction: DNA hypomethylation in patients with systemic lupus erythematosus (SLE) has been recently documented in the literature. Low levels of DNA methylation have been observed globally and in genes associated with immune and inflammatory pathways in SLE's CD4+T lymphocytes. Given that certain micronutrients can either donate methyl groups within one-carbon metabolism pathways or serve as cofactors for enzymes involved in the DNA methylation process, this randomised, double-blind, placebo-controlled trial aims to investigate whether a 3-month supplementation of folic acid and vitamin B will modulate the DNA methylation profile in subcutaneous adipose tissue (primary outcome) of women with SLE and normal weight or excess body weight.

A tripartite circRNA/mRNA/miRNA interaction regulates glutamatergic signaling in the mouse brain.

Functional studies of circular RNAs (circRNAs) began quite recently, and few data exist on their function in vivo. Here, we have generated a knockout (KO) mouse model to study circDlc1(2), a circRNA highly expressed in the prefrontal cortex and striatum. The loss of circDlc1(2) led to the upregulation of glutamatergic-response-associated genes in the striatal tissue, enhanced excitatory synaptic transmission in neuronal cultures, and hyperactivity and increased stereotypies in mice.

Obesity as an aggravating factor of systemic lupus erythematosus disease: What we already know and what we must explore. A rapid scoping review.

Systemic lupus erythematosus (SLE) is a chronic autoimmune disease that can affect various organs and systems. Symptoms of SLE can vary widely from person to person and over time, including fatigue, joint pain, skin rashes, fever, and inflammation of multiple organs. The association between SLE and excess body weight has been the subject of study, with evidence suggesting that overweight and obesity can worsen the disease´s clinical presentation.

Ocrelizumab in MS patients with persistence of disease activity after alemtuzumab: A multi-center Italian study.

Background: The reason why some multiple sclerosis (MS) patients show disease activity after alemtuzumab (ALM) is still unclear, but ocrelizumab (OCR) could represent an interesting sequential therapeutic approach.

Objectives: To investigate safety and efficacy of OCR in MS patients with disease activity after two ALM courses.

Methods: Observational retrospective multi-centers Italian cohort study.

Percutaneous Deep Venous Arterialization Using an IVUS-Guided Technique in no-Option Patients with Chronic Limb-Threatening Ischemia: 24-Month Results.

Purpose: In some patients, revascularization is not possible or is not effective. For these, percutaneous deep vein arterialization (p-DVA) could be considered an alternative treatment. The aim of this study is to evaluate the long-term results of an intravascular ultrasound (IVUS)-guided technique that has only one percutaneous access.

A Systematic and Critical Review on the Anatomy of the Ethmoidal Foramina.

Purpose: The osteologic anatomy of the orbit is still a field of intense research, particularly as far as vascular channels are concerned. Among them, ethmoidal foraminas (EFs) are certainly those that have more clinical importance and indeed have been deeply investigated. Unfortunately, the vast production of articles, far from clarifying their anatomy, generated a certain degree of confusion.

Trend in the Prevalence of Overweight and Obese Adults in São Paulo, Brazil: Analysis between the Years 2006 and 2019.

The aim of this study was to investigate the trend in the prevalence of overweight and obese adults in São Paulo, Brazil, between 2006 and 2019 across chronic diseases and the domains of physical activity. A descriptive retrospective study was carried out on the trend in the prevalence of 26.612 overweight and obese adults (10.

Identification of a muropeptide precursor transporter from gut microbiota and its role in preventing intestinal inflammation.

The gut microbiota is a considerable source of biologically active compounds that can promote intestinal homeostasis and improve immune responses. Here, we used large expression libraries of cloned metagenomic DNA to identify compounds able to sustain an anti-inflammatory reaction on host cells. Starting with a screen for NF-κB activation, we have identified overlapping clones harbouring a heterodimeric ATP-binding cassette (ABC)-transporter from a Firmicutes.

Alteration of Immunoregulatory Patterns and Survival Advantage of Key Cell Types in Food Allergic Children.

All allergic responses to food indicate the failure of immunological tolerance, but it is unclear why cow's milk and egg (CME) allergies resolve more readily than reactivity to peanuts (PN). We sought to identify differences between PN and CME allergies through constitutive immune status and responses to cognate and non-cognate food antigens. Children with confirmed allergy to CME ( = 6) and PN ( = 18) and non-allergic (NA) ( = 8) controls were studied.

CRIPTO-based micro-heterogeneity of mouse muscle satellite cells enables adaptive response to regenerative microenvironment.

Skeletal muscle repair relies on heterogeneous populations of satellite cells (SCs). The mechanisms that regulate SC homeostasis and state transition during activation are currently unknown. Here, we investigated the emerging role of non-genetic micro-heterogeneity, i.

Topographical Correlation between Structural and Functional Impairment of the Macular Inner Retinal Layers in Multiple Sclerosis Eyes with a History of Optic Neuropathy.

We investigated the potential correlation between morphological and functional parameters describing the rarefaction and dysfunction of retinal ganglion cells (RGCs), located in the macula, in multiple sclerosis eyes with a history of optic neuritis (MS-ON). A total of 19 MS-ON eyes from 19 MS patients (mean age: 44.16 ± 4.

Impact of Methyl-Donor Micronutrient Supplementation on DNA Methylation Patterns: A Systematic Review and Meta-Analysis of in vitro, Animal, and Human Studies.

Background: DNA methylation patterns are directly associated with diverse metabolic disorders. The status of methyl-donor micronutrients has been associated with DNA methylation levels, and altered ingestion of folate, choline, betaine, B vitamins and methionine may impact genes both globally and at the level of promoter regions. Despite this, the role of methyl-donor micronutrient supplementation on DNA methylation profiles is currently unclear.

Preparation of Cardiac Extracts from Embryonal Hearts to Capture RNA-protein Interactions by CLIP.

The interaction of RNA with specific RNA-binding proteins (RBP) leads to the establishment of complex regulatory networks through which gene expression is controlled. Careful consideration should be given to the exact environment where a given RNA/RBP interplay occurs, as the functional responses might depend on the type of organism as well as the specific cellular or subcellular contexts. This requisite becomes particularly crucial for the study of long non-coding RNAs (lncRNA), as a consequence of their peculiar tissue-specificity and timely regulated expression.

Clinical anatomy of the spina musculi recti lateralis: A frequently overlooked variation of the greater wing of the sphenoid.

Background: The spina musculi recti lateralis (SMRL) is often visible along the lateral rim of the superior orbital fissure (SOF). Aim of this study is to characterize SMRL morphology and topography relative to known bony landmarks.

Methods: Orbits from 291 adult dry skulls and from 60 CT scans were analyzed to measure the distance between the SMRL and the SOF or the inferior orbital fissures (IOF) as well as its height, width and orientation.

Educational achievement to age 11 years in children born at late preterm and early term gestations.

Objective: To investigate the effects of being born late preterm (LPT, 34-36 weeks' gestation) or early term (37-38 weeks) on children's educational achievement between ages 5 and 11 years.

Design: A series of observational studies of longitudinal linked health and education data.

Setting: The Born-in-Bradford (BiB) birth cohort study, which recruited mothers during pregnancy between 2007 and 2011.

Mechanistic and functional aspects of the Ruminococcin C sactipeptide isoforms.

In a scenario where the discovery of new molecules to fight antibiotic resistance is a public health concern, ribosomally synthesized and post-translationally modified peptides constitute a promising alternative. In this context, the Gram-positive human gut symbiont E1 produces five sactipeptides, Ruminococcins C1 to C5 (RumC1-C5), co-expressed with two radical SAM maturases. RumC1 has been shown to be effective against various multidrug resistant Gram-positives clinical isolates.