Intracellular free calcium ion (Ca2+) levels of the developing chick neuroepithelium during neural tube closure (Hamburger and Hamilton stages 3-11 of embryonic development) were determined using the Hydrophobie acetoxymethyl ester of the fluorescent dye fura-2 (fura-2/AM). Temporal changes in the free Ca2+ level in neuroepithelial cells are correlated with the degree of folding of the neuroepithelium. The concentration of intracellular Ca2+ in the neuroepithelium reaches its highest level when apposing neural folds are actively making contact.
|Original language||English (US)|
|Number of pages||5|
|Journal||Comparative Biochemistry and Physiology -- Part A: Physiology|
|State||Published - Jan 1 1994|
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