The differential growth response of embryonic chick limb-bone rudiments to triiodothyronine in vitro. 1. Stage of development and organ size.

The Differential Growth-response of Embryonic Chick Limb-bone Rudiments to Triiodothyronine in vitro

A Chick Embryo in-Vitro Model of Knee Morphogenesis

   Background: In this feasibility study, a mechanically loaded in-vitro tissue culture model of joint morphogenesis using the isolated lower extremity of the 8 day old chick embryo was developed to assess the effects of mechanical loading on joint morphogenesis. Methods: The developed in-vitro system allows controlled flexion and extension of the chick embryonic knee with a range of motion of ...

The Influence of Hydrocortisone on the Action of Excess Vitamin a on Limb Bone Rudiments in Culture

The effect of hydrocortisone has been studied in organ cultures of the cartilaginous long bone rudiments from 7-day chick embryos and of the well ossified limb bones from late fetal mice. In the chick rudiments, which grow rapidly in culture, the growth rate was much reduced by hydrocortisone, less intercellular material was formed, and the hypertrophic cells of the shaft were much smaller than...

The Influence of Hydrocortisone on the Metaplastic Action of Vitamin A on the Epidermis of Embryonic Chicken Skin in Organ Culture by HONOR B

INTRODUCTION I N earlier work it was found that the addition of excess of vitamin A (10 i.u./ml.) to the culture medium produces drastic changes in embryonic limb-bones and skin in organ culture. The matrix of cartilage (mouse, chick) and bone (mouse) rapidly disappears (Fell & Mellanby, 1952; Fell, Mellanby, & Pelc, 1956) and in the epidermis of skin from 7 to 18-day chick embryos (Fell & Mell...

The influence of hydrocortisone on the metaplastic action of vitamin A on the epidermis of embryonic chicken skin in organ culture.

INTRODUCTION I N earlier work it was found that the addition of excess of vitamin A (10 i.u./ml.) to the culture medium produces drastic changes in embryonic limb-bones and skin in organ culture. The matrix of cartilage (mouse, chick) and bone (mouse) rapidly disappears (Fell & Mellanby, 1952; Fell, Mellanby, & Pelc, 1956) and in the epidermis of skin from 7 to 18-day chick embryos (Fell & Mell...