Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1980-2-15
pubmed:abstractText
The ventilatory response to acute hypoxia was studied in unanesthetized newborn lambs before and after carotid body denervation. Animals studied immediately following operative delivery were compared with a second group who were studied in the 2nd wk of postnatal life. Response time was defined as the interval between the decrease in oxygen saturation in the aortic arch and an increase in tidal volume or ventilatory rate. Animals in the older group demonstrated a significantly shorter response time than those studied immediately following delivery (1.8 s vs. 5.7 s). A ventilatory response was also elicited in carotid body-denervated animals in both study groups. Mean response time following denervation was 29.5 s for the younger and 12.5 s for the older animals. The data suggest that the development of a rapid, carotid body-mediated hypoxic ventilatory response occurs gradually during the first days of postnatal life, and that the central hypoxic response of the fetus (J. Appl. Physiol.: Respirat. Environ. Exercise Physiol. 42:630-635, 1977) persists into postnatal life.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0161-7567
pubmed:author
pubmed:issnType
Print
pubmed:volume
47
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
927-30
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1979
pubmed:articleTitle
Maturation of hypoxic ventilatory response of the newborn lamb.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, P.H.S.