Identification and functional analysis of circulating small extracellular vesicle lncRNA signatures in children with fulminant myocarditis.

Fulminant myocarditis (FM) is the most serious type of myocarditis. However, the molecular mechanism underlying the pathogenesis of FM has not been fully elucidated. Small extracellular vesicles (sEVs) play important roles in many diseases, but any potential role in paediatric FM has not been reported.

Altered plasma exosome miRNAs and novel potential biomarkers in pediatric fulminant myocarditis.

Previous studies have indicated that exosome-mediated intercellular microRNAs (miRNA) can influence fulminant myocarditis (FM) pathogenesis between immune and cardiac cells. This study explored plasma exosome miRNA profile in pediatric FM using a small RNA microarray. As per our analysis, we observed the differential expression of 266 miRNAs, including 197 upregulated and 69 downregulated candidate genes.

ONE-seq: epitranscriptome and gene-specific profiling of NAD-capped RNA.

The hub metabolite, nicotinamide adenine dinucleotide (NAD), can be used as an initiating nucleotide in RNA synthesis to result in NAD-capped RNAs (NAD-RNA). Since NAD has been heightened as one of the most essential modulators in aging and various age-related diseases, its attachment to RNA might indicate a yet-to-be discovered mechanism that impacts adult life-course. However, the unknown identity of NAD-linked RNAs in adult and aging tissues has hindered functional studies.

Quantitative Acetylomics Reveals Dynamics of Protein Lysine Acetylation in Mouse Livers During Aging and Upon the Treatment of Nicotinamide Mononucleotide.

Lysine acetylation is a reversible and dynamic post-translational modification that plays vital roles in regulating multiple cellular processes including aging. However, acetylome-wide analysis in the aging process remains poorly studied in mammalian tissues. Nicotinamide adenine dinucleotide (NAD), a hub metabolite, benefits health span at least in part due to the activation of Sirtuins, a family of NAD-consuming deacetylases, indicating changes in acetylome.

Subacute Toxicity Study of Nicotinamide Mononucleotide via Oral Administration.

Nicotinamide mononucleotide (NMN), a key precursory metabolite of NAD, has been shown to elevate the cellular level of NAD and ameliorate various age-related diseases. Despite these progresses, systemic evaluation pertaining to the subacute toxicity of NMN remains to be determined. Here, we examine the subacute toxicity of NMN in mice and beagle dogs.