Zobrazeno 1 - 10
of 40
pro vyhledávání: '"J P Mortola"'
Autor:
J. Seguin, J. P. Mortola
Publikováno v:
Journal of Zoology. 279:210-218
Several studies have indicated that in birds breathing frequency (f, breaths min−1) scales to the −1/3 of body weight (W, kg); this is different from the −1/4 of mammals. We wondered if this discrepancy was due to the peculiar scaling pattern o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da36b450d5221f400a8b35ba6ab5a08b
https://doi.org/10.1111/j.1469-7998.2009.00606.x
https://doi.org/10.1111/j.1469-7998.2009.00606.x
Autor:
J. P. Mortola, R. D. Gleed
Publikováno v:
Journal of Applied Physiology. 70:1146-1151
Pregnant rats were kept at a simulated altitude of 4,500 m (PO2 91 Torr) for the whole of gestation and returned to sea level 1 day after giving birth. During pregnancy, body weight gain and food intake were approximately 30% less than in controls at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7424a04051b74a16f9b074c2cca3f57c
https://doi.org/10.1152/jappl.1991.70.3.1146
https://doi.org/10.1152/jappl.1991.70.3.1146
Autor:
J P, Mortola, P B, Frappell
Publikováno v:
Canadian journal of physiology and pharmacology. 76(10-11)
The barometric method is a common technique for measurements of pulmonary ventilation in unrestrained animals. It basically consists of recording the changes in chamber pressure generated during breathing. In fact, as the air inspired is warmed and h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::8e7b86037852d7248baa5c74a7fc58ca
https://pubmed.ncbi.nlm.nih.gov/10100875
https://pubmed.ncbi.nlm.nih.gov/10100875
Publikováno v:
Clinical science (London, England : 1979). 96(2)
In fetuses and newborn infants heart rate variability changes in conditions of acute and chronic hypoxia; we therefore asked whether heart rate variability of infants born at high altitude differed from that of low-altitude infants. Short-term record
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::34129aebe1928fd5ea90502b06f11e3c
https://pubmed.ncbi.nlm.nih.gov/9918894
https://pubmed.ncbi.nlm.nih.gov/9918894
Autor:
J P Mortola, C Saiki
Publikováno v:
The Journal of physiology. 491
1. In newborn and adult rats, hypoxia decreases metabolic rate, especially at low ambient temperatures (Ta). We examined whether a similar effect can occur during hypercapnia. 2. We measured metabolism (oxygen consumption, Vo2, open flow-through meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::772082c0ade4d7c3a053fbb72fff01ed
https://pubmed.ncbi.nlm.nih.gov/9011618
https://pubmed.ncbi.nlm.nih.gov/9011618
Estrogen modulates the dimensions of the lung's gas-exchange surface area and alveoli in female rats
Publikováno v:
The American journal of physiology. 270(1 Pt 1)
Sexually mature virgin female rats and mice have a higher mass-specific gas-exchange surface area (Sa) and smaller alveoli than same-aged males even though mass-specific oxygen consumption (VO2) is the same, within species, in both sexes (G. D. Massa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c3600217695f6959268d0e9f8251477
https://pubmed.ncbi.nlm.nih.gov/8772533
https://pubmed.ncbi.nlm.nih.gov/8772533
Autor:
L. Naso, J. P. Mortola
Publikováno v:
The American journal of physiology. 269(3 Pt 1)
We questioned whether the relative composition of the diaphragm proteins [myosin heavy chain (MHC), actin, tropomyosin (TM)-alpha and TM-beta, and MHC isoforms] was altered by chronic hypoxia. Rats were exposed to hypobaric hypoxia (inspired O2 press
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7e2f08ea2d5f2e2dbc16d979a4feacd
https://pubmed.ncbi.nlm.nih.gov/7573471
https://pubmed.ncbi.nlm.nih.gov/7573471
Autor:
C, Saiki, J P, Mortola
Publikováno v:
Pediatric research. 35(4 Pt 1)
We asked whether the ventilatory control of the newborn rat was modified by preceding daily episodes of anoxia. At thermoneutrality (ambient temperature, 32 degrees C) during anoxia, respiratory efforts lasted, on average, 28, 20, and 11 min at 1, 3,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::3b58bd7ea7a9c2cd0b1766be866f4ecb
https://pubmed.ncbi.nlm.nih.gov/8047387
https://pubmed.ncbi.nlm.nih.gov/8047387
Autor:
J. P. Mortola, Tawfic S. Hakim
Publikováno v:
Canadian journal of physiology and pharmacology. 68(3)
Newborn rats were exposed to hypoxia (10% O2 + N2) from 24 h to day 6 of neonatal life and then returned to room air until 45 days of age (experimental). The rats were anaesthetized, heparinized, and exsanguinated. The chest was opened and the lungs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b48e05a50f288d15b0299367f55a171
https://pubmed.ncbi.nlm.nih.gov/2322899
https://pubmed.ncbi.nlm.nih.gov/2322899
Autor:
G Sant'Ambrogio, J P Mortola
Publikováno v:
The Journal of Physiology. 286:577-590
1. The trachea is constructed by a series of U-shaped cartilaginous rings supporting a membranous posterior wall. We have studied separately the pressure-volume relationships of the two components. 2. The motion of the membranous posterior wall contr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8919de599ff3282fb581c977b2ce3d53
https://doi.org/10.1113/jphysiol.1979.sp012638
https://doi.org/10.1113/jphysiol.1979.sp012638