The role of neurohumors in early embryogenesis
| Autor: | G. A. Buznikov, I. V. Chudakova, N. M. Vyazmina, L. V. Berdysheva |
|---|---|
| Rok vydání: | 1968 |
| Předmět: |
medicine.medical_specialty
media_common.quotation_subject Xenopus Embryo Insect Biology biology.organism_classification Endocrinology Dopamine Internal medicine biology.animal embryonic structures medicine Catecholamine Serotonin Molecular Biology Sea urchin Acetylcholine Developmental Biology medicine.drug media_common |
| Zdroj: | Development. 20:119-128 |
| ISSN: | 1477-9129 0950-1991 |
| DOI: | 10.1242/dev.20.1.119 |
| Popis: | In a previous paper (Buznikov, Chudakova & Zvezdina, 1964) it has been reported that serotonin (5-hydroxytryptamine, 5-HT) may be involved in early embryogenesis in various groups of animals. This conclusion was confirmed by Baker9s recent publication (Baker, 1965) concerning 5-HT synthesis in Xenopus laevis embryos. Some other low molecular weight substances, neurohumors or related compounds, are known to be synthesized in fertilized eggs as well. Acetylcholine (ACh) synthesis in sea-urchin eggs and embryos was demonstrated by Numanoi (1953, 1955, 1959, 1961). It seems possible that ACh can be synthesized in fertilized insect eggs as well (Morley & Schachter, 1963; Schachter, 1964). The synthesis of another neurohumor, dopamine (DA), in early insect embryos seems to be indisputable (Furneaux & McFarlane, 1965). However, in most cases changes in the level of neurohumors with age have not been studied. In the present paper data concerning the change of concentration with age of ACh and catecholamines (adrenaline (A) and noradrenaline (NA)) in early sea-urchin embryos will be presented. |
| Databáze: | OpenAIRE |
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