The liver's regenerative ability depends on injury extent. Minor injuries are repaired by hepatocyte self-duplication, while severe damage triggers cholangiocyte involvement in hepatocyte recovery. Th...

Nature - A spatially resolved single-cell transcriptomics map of the mouse brain at different ages reveals signatures of ageing, rejuvenation and disease, including ageing effects associated with T...

Through analysis of developing chick embryos and in vitro differentiation of embryonic stem cells, a study develops a method to generate a model of the human trunk with a notochord.

Glial-vascular interactions are critical for the formation and maintenance of brain blood vessels and the blood-brain barrier (BBB) in mammals, but their role in the zebrafish BBB remains unclear. Using three glial gene promoters—gfap, glast, and glastini (a truncated glast)—we explored glial-vascular development in zebrafish. Sparse labeling showed fewer glial-vascular interactions at early stages, with glial coverage and contact area increasing with age. Stable transgenic lines for glast and glastini revealed similar developmental increases, starting at ∼30% coverage at 3 days post-fertilization (dpf) and peaking at ∼60% by 10 dpf, and consistently higher glial coverage in the forebrain and midbrain than in the hindbrain.

Although the heart has its own nervous system, its organization and functionality remain largely unknown. Here, the authors reveal the molecular, chemical, and functional diversity of neurons within t...

Summary: flt1 inactivation promotes zebrafish cardiac regeneration by enhancing coronary revascularization and endocardial expansion, while limiting myofibroblast differentiation.

Dynamic cross-species single cell transcriptomic analyses reveal conserved and disparate cardiac and extracardiac inflammatory responses upon heart injury between models with fibrotic and regenerative...