scholarly journals Regional blood flow in conscious spontaneously hypertensive rats.

1983 ◽  
Vol 33 (1) ◽  
pp. 41-50 ◽  
Author(s):  
Juro IRIUCHIJIMA
Keyword(s):  
Blood Flow ◽  
Spontaneously Hypertensive Rats ◽  
Regional Blood Flow ◽  
Hypertensive Rats ◽  
Spontaneously Hypertensive

scholarly journals Effects of an antihypertensive vasodilator, pinacidil, on regional blood flow in conscious spontaneously hypertensive rats.

1988 ◽  
Vol 11 (6) ◽  
pp. 430-437 ◽  
Author(s):  
Shoji KIMURA ◽  
Shoji FUJIOKA ◽  
Kiyoshi FUKUI ◽  
Toshiaki TAMAKI ◽  
Hiroshi IWAO ◽  
...  
Keyword(s):  
Blood Flow ◽  
Spontaneously Hypertensive Rats ◽  
Regional Blood Flow ◽  
Hypertensive Rats ◽  
Spontaneously Hypertensive

Excess oxygen delivery during muscle contractions in spontaneously hypertensive rats

1995 ◽  
Vol 78 (1) ◽  
pp. 101-111 ◽  
Author(s):  
J. M. Lash ◽  
H. G. Bohlen
Keyword(s):  
Blood Flow ◽  
Oxygen Saturation ◽  
Oxygen Delivery ◽  
Spontaneously Hypertensive Rats ◽  
Muscle Contractions ◽  
Hypertensive Rats ◽  
Hemoglobin Oxygen Saturation ◽  
Spontaneously Hypertensive ◽  
Tissue Po2 ◽  
Wistar Kyoto

These experiments determined whether a deficit in oxygen supply relative to demand could account for the sustained decrease in tissue PO2 observed during contractions of the spinotrapezius muscle in spontaneously hypertensive rats (SHR). Relative changes in blood flow were determined from measurements of vessel diameter and red blood cell velocity. Venular hemoglobin oxygen saturation measurements were performed by using in vivo spectrophotometric techniques. The relative dilation [times control (xCT)] of arteriolar vessels during contractions was as large or greater in SHR than in normotensive rats (Wistar-Kyoto), as were the increases in blood flow (2 Hz, 3.50 +/- 0.69 vs. 3.00 +/- 1.05 xCT; 4 Hz, 10.20 +/- 3.06 vs. 9.00 +/- 1.48 xCT; 8 Hz, 16.40 +/- 3.95 vs. 10.70 +/- 2.48 xCT). Venular hemoglobin oxygen saturation was lower in the resting muscle of SHR than of Wistar-Kyoto rats (31.0 +/= 3.0 vs. 43.0 +/- 1.9%) but was higher in SHR after 4- and 8-Hz contractions (4 Hz, 52.0 +/- 4.8 vs. 43.0 +/- 3.6%; 8 Hz, 51.0 +/- 4.6 vs. 41.0 +/- 3.6%). Therefore, an excess in oxygen delivery occurs relative to oxygen use during muscle contractions in SHR. The previous and current results can be reconciled by considering the possibility that oxygen exchange is limited in SHR by a decrease in anatomic or perfused capillary density, arteriovenular shunting of blood, or decreased transit time of red blood cells through exchange vessels.

Cochlear blood flow in relation to age in normotensive and spontaneously hypertensive rats

1987 ◽  
Vol 104 (3-4) ◽  
pp. 243-250 ◽  
Author(s):  
Maria Hillerdal ◽  
Erik Borg ◽  
Berit Engstrom ◽  
Elisabeth Hultcrantz
Keyword(s):  
Blood Flow ◽  
Spontaneously Hypertensive Rats ◽  
Hypertensive Rats ◽  
Cochlear Blood Flow ◽  
Spontaneously Hypertensive
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