Oxygen receptors in the rainbow trout, Salmo gairdneri

1978 ◽  
Vol 56 (6) ◽  
pp. 1254-1259 ◽  
Author(s):  
C. Daxboeck ◽  
G. F. Holeton

A new technique for the detection in situ of oxygen-sensitive chemoreceptors in fish is described. By studying the hypoxic responses of the rainbow trout, Salmo gairdneri, at least two loci of respiratory control were found to be operating. One component initiated the hypoxic bradycardia and its rapid release, a second was responsible for ventilatory responses. The anterodorsal region of the first branchial arches has been established as a peripheral oxygen-sensitive chemoreceptor site, mediating bradycardia, without affecting either the amplitude or frequency of breathing. The study does not preclude the existence of oxygen receptors in other areas of the fish.

2016 ◽  
Vol 155 ◽  
pp. 504-523 ◽  
Author(s):  
P. Maximiano Raimundo ◽  
A. Cartellier ◽  
D. Beneventi ◽  
A. Forret ◽  
F. Augier

1971 ◽  
Vol 28 (10) ◽  
pp. 1609-1614 ◽  
Author(s):  
John C. Davis

Reductions in surface area of the gill were artificially produced by ligating various gill arches and occluding their blood supply. Rainbow trout (Salmo gairdneri) responded to a 40–57% reduction in gill area, by increasing cardiac output and ventilation volume, and probably by redistributing blood within the remaining functional gill area. Fish with blood flow to gill arches one and three only, could maintain arterial PO2 at 90–100 mm Hg, whereas, in those with blood flow to arches three and four only, arterial PO2 fell to around 40 mm Hg. The presence of a chemoreceptor site for the regulation of arterial PO2 associated with the efferent blood vessels of arch number one is discussed. Such a receptor may be located in the pseudobranch or in the portion of the brain supplied with arterial blood from the first gill arch.


1997 ◽  
Vol 119 (42) ◽  
pp. 10170-10177 ◽  
Author(s):  
John C. Linehan ◽  
Scott L. Wallen ◽  
Clement R. Yonker ◽  
Thomas E. Bitterwolf ◽  
J. Timothy Bays

2002 ◽  
Vol 50 (12) ◽  
pp. 1697-1698 ◽  
Author(s):  
Ulf Steinhaeuser ◽  
Heike Starke ◽  
Angela Nietzel ◽  
Joerg Lindenau ◽  
Peter Ullmann ◽  
...  

We describe a versatile method for performing fluorescence in situ hybridization (FISH) in suspension instead of on a slide as usually done. This so-called suspension-FISH (S-FISH) opens new possibilities for the analysis of shape and functions of the human interphase nucleus. The procedure is described and the first results using this approach are presented.


2014 ◽  
Vol 218 (1) ◽  
pp. e7-e16 ◽  
Author(s):  
Megan J. Reiniers ◽  
Rowan F. van Golen ◽  
Michal Heger ◽  
Banafsche Mearadji ◽  
Roelof J. Bennink ◽  
...  

1973 ◽  
Vol 39 (3) ◽  
pp. 416-419 ◽  
Author(s):  
John K. Vries ◽  
Donald P. Becker ◽  
Harold F. Young

✓ A new technique for monitoring intracranial pressure is presented. It is based on a hollow screw in the skull whose tip projects through the dura into the subarachnoid space. The screw can be easily inserted under local anesthesia. Pressure is monitored isovolumetrically by connecting the screw to a transducer. The system can be calibrated in situ and has been successfully used in 56 patients during a 6-month period.


2013 ◽  
Vol 6 (5) ◽  
pp. 1295-1299 ◽  
Author(s):  
LIN FANG ◽  
CHUANDE ZHOU ◽  
MINGYONG YANG

1974 ◽  
Vol 16 (6) ◽  
pp. 611-619 ◽  
Author(s):  
Marvin H. Lerner ◽  
William H. Epstein

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