In human epidermis, the molecular events that orchestrate cell death leading to proper barrier formation by the stratum corneum must be properly timed and coordinated for terminal differentiation ...

The stratum corneum is very thin, with little keratin. Skin is used for gas exchange. Thick keratin layer would restrict oxygen exchange and water absorption. Amphibians have many mucus glands to ...

Challenging the long-standing belief that fibroblasts produce skin collagen, researchers at Okayama University have investigated collagen formation in the ‘glass-skinned’ amphibian axolotl and other ...

At 5 cm, the axolotl's skin consisted of an epidermis with keratinocytes and a thin, fibroblast-free collagen layer in the dermis, which they named the stratum coniunctum. As the axolotl grew ...

The sudden shearing forces associated with the impact rupture blood vessels in the papillary dermis with consequent leakage of blood into the epidermis. While in the stratum corneum, this blood is ...