A cytochemical study on protein and nucleic acids of the eccrine sweat gland in the palm and the sole of human embryos.

Since the classical work of Köllike r, (1889), a large number of embryological studies on the skin and the sweat gland of the human embryos have been reported by many investigators, including some Japanese such as Nagai (1936), A k a g i (1939) and Ueda (1939). Histochemical studies on the skin and the sweat gland have been carried out by Tak a g i (1941), I t o (1949, 1951) and M ont a gn a (1951). Recently histochemical studies on their genesis have been done by many investigators. In Japan, T s u c hi y a (1954) reported in a study on the eccrine sweat gland. In the present study, the authors examined cytochemically the protein and nucleic acids in the developing eccrine sweat gland of the palm and the sole of human embryos.