{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,23]],"date-time":"2025-08-23T05:06:49Z","timestamp":1755925609926},"reference-count":0,"publisher":"Canadian Science Publishing","issue":"2","license":[{"start":{"date-parts":[[1986,2,1]],"date-time":"1986-02-01T00:00:00Z","timestamp":507600000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.nrcresearchpress.com\/page\/about\/CorporateTextAndDataMining"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Can. J. Physiol. Pharmacol."],"published-print":{"date-parts":[[1986,2,1]]},"abstract":"<jats:p> The heart rate and respiratory patterns in hypoxia are not well documented in unanaesthetized intact newborn animals. We studied heart rate and respiratory patterns during quiet sleep in 17% inspired O<jats:sub>2<\/jats:sub> in 31 unanaesthetized newborns of five species: lamb, piglet, puppy, kitten, and rabbit. There was no significant change in mean heart rate and respiratory rate with hypoxia for any species. Brief apneas greater than 5\u2002s were frequent (5\u20138\/h), both in 21 and 17% O<jats:sub>2<\/jats:sub> only in lambs and puppies. No sustained periodic breathing was induced by hypoxia. Thus, mild hypoxia has little steady-state effect on heart rate and respiratory rate and pattern in these unanaesthetized newborns. These findings are compatible with depressed chemoreceptor threshold, but indicate a remarkably mature respiratory pattern in full-term newborns of these species. <\/jats:p>","DOI":"10.1139\/y86-018","type":"journal-article","created":{"date-parts":[[2011,4,23]],"date-time":"2011-04-23T16:52:57Z","timestamp":1303577577000},"page":"122-124","source":"Crossref","is-referenced-by-count":4,"title":["Heart rate and respiratory patterns in mild hypoxia in unanaesthetized newborn mammals"],"prefix":"10.1139","volume":"64","author":[{"given":"John P.","family":"Finley","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C.","family":"Kelly","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"155","container-title":["Canadian Journal of Physiology and Pharmacology"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.nrcresearchpress.com\/doi\/pdf\/10.1139\/y86-018","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,1,5]],"date-time":"2020-01-05T10:18:20Z","timestamp":1578219500000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.nrcresearchpress.com\/doi\/10.1139\/y86-018"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1986,2,1]]},"references-count":0,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1986,2,1]]}},"alternative-id":["10.1139\/y86-018"],"URL":"https:\/\/doi.org\/10.1139\/y86-018","relation":{},"ISSN":["0008-4212","1205-7541"],"issn-type":[{"value":"0008-4212","type":"print"},{"value":"1205-7541","type":"electronic"}],"subject":[],"published":{"date-parts":[[1986,2,1]]}}}