Oxygen uptake was studied during the establishment of cephalocaudal polarity in the very early chick embryo, i.e., 10 hr before (stage VI) and at laying (stage X). Oxygen fluxes in minute regions of the intact blastoderms were measured in vitro by scanning microspectrophotometry in the presence or absence of glucose. The oxygen consumption of the whole blastoderm remained constant (6 nmol O2 X hr-1) throughout the period studied, although the number of cells increased more than twofold. The regional oxygen fluxes varied from 0.41 to 1.13 nmol O2 X hr-1 X mm-2 at stage VI and from 0.42 to 0.70 nmol O2 X hr-1 X mm-2 at stage X. At stage VI, the oxygen flux in the center of the blastoderm was significantly higher than that in its periphery. Th...
Department of Neonatology, University Hospital, Maastricht University, Maastricht, The Netherlands. ...
Primitive erythroblasts in the circulating blood of the chick embryo continue to divide while synthe...
<p>The permeating rates of 0.1-, 0.5-, and 1.00-mm-thick PDMS membranes were measured with an oxygen...
A method has been developed for the determination of the oxygen uptake of small areas (0.01 mm2) in ...
The carbon dioxide production of the chick embryo cultured in vitro has been determined during the f...
From the onset of internal pipping (i.e. embryonal breathing of air cell gas) until hatching, the ch...
Under normal atmospheric conditions (temperature and humidity) and rotation of the chick eggs everyd...
Oxidative metabolism of the isolated embryonic heart of the chick has been determined using a spectr...
1. Hyperoxia can cause local vasoconstriction in adult animal organs as a protective mechanism again...
Department of Neonatology, University Hospital Maastricht, The Netherlands. j.vangolde@og.unimaas.nl...
The self-referencing electrode technique was employed to noninvasively measure gradients of dissolve...
Red cell carbonic anhydrase activity, 2.3 DPG concentration, and activities of three key enzymes con...
Effects of insulin upon glucose metabolism were investigated in chick embryos explanted in vitro dur...
Diffusive and perfusive gas conductances of the shell and chorioallantois of avian eggs are not homo...
Two experiments were carried out to study embryonic metabolic responses to short-term temperature fl...
Department of Neonatology, University Hospital, Maastricht University, Maastricht, The Netherlands. ...
Primitive erythroblasts in the circulating blood of the chick embryo continue to divide while synthe...
<p>The permeating rates of 0.1-, 0.5-, and 1.00-mm-thick PDMS membranes were measured with an oxygen...
A method has been developed for the determination of the oxygen uptake of small areas (0.01 mm2) in ...
The carbon dioxide production of the chick embryo cultured in vitro has been determined during the f...
From the onset of internal pipping (i.e. embryonal breathing of air cell gas) until hatching, the ch...
Under normal atmospheric conditions (temperature and humidity) and rotation of the chick eggs everyd...
Oxidative metabolism of the isolated embryonic heart of the chick has been determined using a spectr...
1. Hyperoxia can cause local vasoconstriction in adult animal organs as a protective mechanism again...
Department of Neonatology, University Hospital Maastricht, The Netherlands. j.vangolde@og.unimaas.nl...
The self-referencing electrode technique was employed to noninvasively measure gradients of dissolve...
Red cell carbonic anhydrase activity, 2.3 DPG concentration, and activities of three key enzymes con...
Effects of insulin upon glucose metabolism were investigated in chick embryos explanted in vitro dur...
Diffusive and perfusive gas conductances of the shell and chorioallantois of avian eggs are not homo...
Two experiments were carried out to study embryonic metabolic responses to short-term temperature fl...
Department of Neonatology, University Hospital, Maastricht University, Maastricht, The Netherlands. ...
Primitive erythroblasts in the circulating blood of the chick embryo continue to divide while synthe...
<p>The permeating rates of 0.1-, 0.5-, and 1.00-mm-thick PDMS membranes were measured with an oxygen...