Experiments

Searchable full-text extractions: founding hypothesis, core claims, experimental setups, key results and statistics — pulled out of each paper as structure. Search a cell line, an assay or an entity (e.g. HUH7) and find every paper that worked with it. This corpus stands on its own: most entries carry no reproduction assessment (yet).

• Modular genetic architecture underlies human hand and foot evolution.

  PMID 42118837 · PMC13187773 · Proceedings of the National Academy of Sciences of the United States of America · 2026 · 8 claims · 8 setups

  Full-text index only

  Gene expression and regulatory modules strongly separate metapodials from phalanges, and separate tissues to a lesser extent along the anterior-posterior axis or between limb types

  developing e15.5 chimpanzee developmental rna-seq atac-seq skeletal

• Stage- and cluster-specific regulation of chondrogenic gene programs by Sox9 in mouse embryonic limb buds.

  PMID 41809054 · PMC12969044 · iScience · 2026 · 8 claims · 7 setups

  Full-text index only

  scRNA-seq across five limb bud stages identifies four Sox9-high populations (chondroprogenitors 1, 2, 3, and mature chondrocytes) with distinct temporal dynamics

  forelimb scrna-seq cut&run embryo single-cell cut&run velocity

• Degeneration and adaptive evolution of digits in ratite birds.

  PMID 41982182 · PMC13135079 · Molecular biology and evolution · 2026 · 8 claims · 6 setups

  Full-text index only

  Hindlimb digit 5 (HD5) degeneration shares 70-77% of candidate genes between ostrich and crocodile, indicating it originated once in the Archosauria stem lineage rather than independently.

  developing digit emu ostrich bulk alcian mount

• Distinct sympathetic projections to brown fat regulate thermogenesis and glucose tolerance.

  PMID 41559445 · PMC12945688 · Nature metabolism · 2026 · 8 claims · 8 setups

  Has reproduction · 85

  Distinct sympathetic neuron subpopulations in the stellate ganglion (SG) innervating iBAT parenchyma versus its vasculature mediate separable functions of the depot.

  th-cre awake ibat plasma retrograde chemogenetic indirect