Biomaterial Database

[Immunohistochemical investigations on the ontogenesis of the subcommissural organ]. 1986

W Naumann

Using an antiserum raised against bovine Reissner's fiber a ventricle border of the matrix epithel reacting in the immunohistochemical procedure according to Sternberger et al. (1970) is visible in the very early stage of the embryonic brain of Pleurodeles waltli. In the basal region of the brain the immunoreactive border later develops into the flexural organ a secretory cell formation that is situated in the deuterencephalon and spinal cord. The cells of the flexural organ release a glycoprotein into the cerebrospinal fluid, where, among other things, the Reissner's fiber is formed. Later on, Reissner's fiber is produced no longer by the flexural organ, but the subcommissural organ. It is suggested that in the very early embryonic stage the immunohistochemically reactive ventricle border, too, contains a glycoprotein that might contribute to any events in the ontogeny of the nervous system.

UI	MeSH Term	Description	Entries
D009490	Neurosecretory Systems	A system of NEURONS that has the specialized function to produce and secrete HORMONES, and that constitutes, in whole or in part, an ENDOCRINE SYSTEM or organ.	Neuroendocrine System,Neuroendocrine Systems,Neurosecretory System,System, Neuroendocrine,System, Neurosecretory,Systems, Neuroendocrine,Systems, Neurosecretory
D010999	Pleurodeles	A genus of aquatic newts belonging to the family Salamandridae and sometimes referred to as "spiny" tritons. There are two species P. waltlii and P. poireti. P. waltlii is commonly used in the laboratory. Since this genus adapts to aquarium living, it is easy to maintain in laboratories.	Pleurodele
D011247	Pregnancy	The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.	Gestation,Pregnancies
D004625	Embryo, Nonmammalian	The developmental entity of a fertilized egg (ZYGOTE) in animal species other than MAMMALS. For chickens, use CHICK EMBRYO.	Embryonic Structures, Nonmammalian,Embryo, Non-Mammalian,Embryonic Structures, Non-Mammalian,Nonmammalian Embryo,Nonmammalian Embryo Structures,Nonmammalian Embryonic Structures,Embryo Structure, Nonmammalian,Embryo Structures, Nonmammalian,Embryo, Non Mammalian,Embryonic Structure, Non-Mammalian,Embryonic Structure, Nonmammalian,Embryonic Structures, Non Mammalian,Embryos, Non-Mammalian,Embryos, Nonmammalian,Non-Mammalian Embryo,Non-Mammalian Embryonic Structure,Non-Mammalian Embryonic Structures,Non-Mammalian Embryos,Nonmammalian Embryo Structure,Nonmammalian Embryonic Structure,Nonmammalian Embryos,Structure, Non-Mammalian Embryonic,Structure, Nonmammalian Embryo,Structure, Nonmammalian Embryonic,Structures, Non-Mammalian Embryonic,Structures, Nonmammalian Embryo,Structures, Nonmammalian Embryonic
D005260	Female		Females
D005314	Embryonic and Fetal Development	Morphological and physiological development of EMBRYOS or FETUSES.	Embryo and Fetal Development,Prenatal Programming,Programming, Prenatal
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D013351	Subcommissural Organ	Ependymal derivative located at the junction of the THIRD VENTRICLE and the CEREBRAL AQUEDUCT; and the SOMATOSTATIN SECRETING CELLS.	Organ, Subcommissural,Organs, Subcommissural,Subcommissural Organs