Effects of Zinc Oxide Nanoparticles on Neural Tube Development in Early Chicken Embryos.

Aim: To investigate the effect of zinc oxide nanoparticles (ZnO-NPs) on neural tube development in early chicken embryos.

Material And Methods: Fifty pathogen-free fertilized eggs were initially incubated for thirty hours. The eggs were divided into 5 groups.

Histological and Biomechanical Effects of Local Anesthetics and Steroids on Achilles Tendon: A Study in Rats.

Background: Peritendinous injection of local anesthetics, alone or in combination with corticosteroids, is widely used in the treatment of tendinopathies. Toxicity of local anesthetics has been demonstrated in many cells, including myocytes, chondrocytes, and neurons. Bupivacaine and lidocaine are known to have time- and dose-dependent cytotoxicity in these cells.

Implications for thymus growth in childhood: histogenesis of cortex and medulla.

The increase in autoimmune diseases in recent years has drawn attention back to the thymus, with new approaches to improve and/or restore immune function being investigated. As the primary lymphoid organ responsible for functional T cell development, studies on the pre-/post-natal development of this organ and T lymphocytes in human and other species are of special interest. During our screening studies we observed structures that had not been described or mentioned previously, and named them "epitheliostromal sheaths".