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Precise correction of Duchenne muscular dystrophy exon deletion mutations by base and prime editing - Vimarsana News

Precise correction of Duchenne muscular dystrophy exon deletion mutations by base and prime editing

Abstract Duchenne muscular dystrophy (DMD) is a fatal muscle disease caused by the lack of dystrophin, which maintains muscle membrane integrity. We used an adenine base editor (ABE) to modify splice donor sites of the dystrophin gene, causing skipping of a common DMD deletion mutation of exon 51 (∆Ex51) in cardiomyocytes derived from human induced pluripotent stem cells, restoring dystrophin expression. Prime editing was also capable of reframing the dystrophin open reading frame in these cardiomyocytes. Intramuscular injection of ∆Ex51 mice with adeno-associated virus serotype-9 encodin...

Population genomic evidence of Plasmodium vivax Southeast Asian origin - Vimarsana News

Population genomic evidence of Plasmodium vivax Southeast Asian origin

P. vivax originates from sub-Saharan Africa based on the circulation of its closest genetic relatives ( P. vivax-like) among African great apes. However, the limited number of genetic markers and samples investigated questions the robustness of this hypothesis. Here, we extensively characterized the genomic variations of 447 human P. vivax strains and 19 ape P. vivax-like strains collected worldwide. Phylogenetic relationships between human and ape Plasmodium strains revealed that P. vivax-like, not included within the radiation of P. vivax-like. By investigating various aspects of P. v...