Skip Nav Destination
Close Modal
Update search
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISBN
- EISBN
- ISSN
- EISSN
- Issue
- Volume
- References
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISBN
- EISBN
- ISSN
- EISSN
- Issue
- Volume
- References
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISBN
- EISBN
- ISSN
- EISSN
- Issue
- Volume
- References
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISBN
- EISBN
- ISSN
- EISSN
- Issue
- Volume
- References
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISBN
- EISBN
- ISSN
- EISSN
- Issue
- Volume
- References
Filter
- Title
- Author
- Author Affiliations
- Full Text
- Abstract
- Keyword
- DOI
- ISBN
- EISBN
- ISSN
- EISSN
- Issue
- Volume
- References
NARROW
Format
Journal
Article Type
TOC Section
Date
Availability
1-16 of 16
Keywords: ornithine-urea cycle
Close
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Sort by
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2016) 219 (20): 3218–3226.
Published: 15 October 2016
... and 8–10 h) within each treatment, presumably reflecting the time delay necessary for the ornithine–urea cycle to convert the ammonia-N taken up into urea-N ( Wood et al., 1995 ; Nawata et al., 2015a , b ).When these mean 4–10 h urea-N excretion rates were plotted against the same measured seawater...
Includes: Supplementary data
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2015) 218 (2): 238–248.
Published: 15 January 2015
... synthesis. © 2015. Published by The Company of Biologists Ltd 2015 Elasmobranchs Rh glycoproteins Gene expression Urea Gills Ornithine–urea cycle Transepithelial potential P NH 3 gradient In series 2 and 3, the dogfish were fitted with indwelling caudal artery catheters...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2013) 216 (9): 1650–1657.
Published: 1 May 2013
... to significant decreases in the activity of some ornithine–urea cycle enzymes (argininosuccinate synthetase/argininosuccinate lyase and arginase) from the liver of P. sinensis . As a decrease in urea synthesis occurred without the accumulation of ammonia and total free amino acids, it can be deduced that ammonia...
Includes: Supplementary data
Journal Articles
Postprandial increases in nitrogenous excretion and urea synthesis in the giant mudskipper Periophthalmodon schlosseri
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (2004) 207 (17): 3015–3023.
Published: 1 August 2004
... The Company of Biologists Limited 2004 2004 amino acids ammonia ammonia excretion feeding glutamine mudskipper nitrogen metabolism ornithine-urea cycle Periophthalmodon schlosseri urea When confronted with aerial exposure, tropical air-breathing fishes would be expected to have...
Journal Articles
Dogmas and controversies in the handling of nitrogenous wastes:Expression of arginase Type I and II genes in rainbow trout: influence of fasting on liver enzyme activity and mRNA levels in juveniles
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (2004) 207 (12): 2033–2042.
Published: 15 May 2004
... of arginase, whose function is unrelated to the ornithine–urea cycle (OUC; Samson, 2000 ). There are two forms of arginase in terrestrial ureotelic vertebrates encoded by separate genes ( Spector et al., 1985 ; Grody et al., 1989 ). Arginase Type I (ARG01) is a cytosolic enzyme( Ikemoto et al., 1990...
Journal Articles
Dogmas and controversies in the handling of nitrogenous wastes: Ureotely and ammonia tolerance in early life stages of the gulf toadfish, Opsanus beta
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (2004) 207 (12): 2011–2020.
Published: 15 May 2004
... was excreted in pulsatile events that accounted for 62.0±5.9% of total urea-N excreted. Excretion rates of urea-N and ammonia-N were 1.018±0.084 μmol N h –1 g –1 and 0.235±0.095 μmol N h –1 g –1 ,respectively. Field-collected eggs, larvae and juveniles expressed significant levels of the ornithine–urea cycle...
Journal Articles
A comparison of the effects of environmental ammonia exposure on the Asian freshwater stingray Himantura signifer and the Amazonian freshwater stingray Potamotrygon motoro
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (2003) 206 (20): 3625–3633.
Published: 15 October 2003
...Yuen K. Ip; Wai L. Tam; Wai P. Wong; Ai M. Loong; Kum C. Hiong; James S. Ballantyne; Shit F. Chew SUMMARY The white-edge whip tail ray Himantura signifer inhabits a freshwater environment but has retained the capability to synthesize urea de novo through the arginine-ornithine-urea cycle (OUC...
Journal Articles
Urea synthesis in the African lungfish Protopterus dolloi -hepatic carbamoyl phosphate synthetase III and glutamine synthetase are upregulated by 6 days of aerial exposure
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (2003) 206 (20): 3615–3624.
Published: 15 October 2003
... endogenous ammonia production. Simultaneously, there were significant increases in urea levels in the muscle (8-fold), liver (10.5-fold) and plasma (12.6-fold) of specimens exposed to air for 6 days. Furthermore, there was an increase in the hepatic ornithine-urea cycle (OUC) capacity, with significant...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2003) 206 (17): 2931–2940.
Published: 1 September 2003
... the South American freshwater stingray Potamotrygon motoro, H. signifer has a functional ornithine-urea cycle (OUC) in the liver, with hepatic carbamoylphosphate synthetase III (CPS III) and glutamine synthetase (GS) activities lower than those of the marine blue-spotted fan tail ray Taeniura lymma . More...
Journal Articles
A second glutamine synthetase gene with expression in the gills of the gulf toadfish ( Opsanus beta )
Available to PurchasePatrick J. Walsh, Gregory D. Mayer, Mónica Medina, Matthew L. Bernstein, John F. Barimo, Thomas P. Mommsen
Journal:
Journal of Experimental Biology
J Exp Biol (2003) 206 (9): 1523–1533.
Published: 1 May 2003
.... ( 2001 ). Role of glutamine in cerebral nitrogen metabolism and ammonia neurotoxicity. Ment. Retard. Dev. Disabil. Res. Rev. 7 , 280 -286. Felskie, A. K., Anderson, P. M. and Wright, P. A. ( 1998 ). Expression and activity of carbamoyl phosphate synthetase III and ornithine urea cycle enzymes...
Journal Articles
Pathways for urea production during early life of an air-breathing teleost, the African catfish Clarias gariepinus Burchell
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (2001) 204 (12): 2155–2165.
Published: 15 June 2001
... of this teleost; uricolysis, argininolysis and the ornithine–urea cycle (OUC). Uricase, allantoinase, allantoicase and ureidoglycollate lyase of the uricolytic pathway were expressed in all early life stages and in adult liver of C. gariepinus . Uricase activity increased in starved larvae compared with yolk-sac...
Journal Articles
Functional Ureogenesis in the Gobiid Fish, Mugilogobius Abei
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (2000) 203 (24): 3703–3715.
Published: 15 December 2000
... in the muscle, skin and gill, but levels were negligible in the liver. Furthermore, all other ornithine–urea cycle (O-UC) enzymes were also detected in muscle, skin and gill. Thus, M. abei clearly shows the transition from ammoniotely to ureotely under ammonia-loading condition and is able to produce urea...
Journal Articles
Pulsatile Urea Excretion in the Ureagenic Toadfish Opsanus Beta : an Analysis of Rates and Routes
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (1995) 198 (8): 1729–1741.
Published: 1 August 1995
....1402410117 Saha , N. and Ratha , B. K. ( 1989 ). Comparative study of ureogenesis in freshwater air-breathing teleosts . J. exp. Zool. 52 , 1 – 8 . 10.1002/jez.1402520102 Saha , N. and Ratha , B. K. ( 1994 ). Induction of ornithine–urea cycle in a freshwater teleost...
Journal Articles
Ammonia and Urea Metabolism in Relation to Gill Function and Acid–Base Balance in A Marine Elasmobranch, the Spiny Dogfish ( Squalus Acanthias )
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (1995) 198 (7): 1545–1558.
Published: 1 July 1995
... ornithine–urea cycle gill permeability kidney function nitrogenous waste excretion acid–base balance © The Company of Biologists Limited 1995 09 03 1995 ...
Journal Articles
Urea production, acid–base regulation and their interactions in the lake magadi tilapia, a unique teleost adapted to a highly alkaline environment
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (1994) 189 (1): 13–36.
Published: 1 April 1994
... in normal acid–base regulation. 01 12 1993 © 1994 by Company of Biologists 1994 Lake Magadi urea acid–base balance high pH liver ornithine–urea cycle ammonia glutamine Oreochromis alcalicus grahami The tilapia Oreochromis alcalicus grahami lives in the highly alkaline...
Journal Articles
The physiological responses of the Lahontan cutthroat trout ( Oncorhynchus clarki henshawi ), a resident of highly alkaline Pyramid Lake (pH 9.4), to challenge at pH 10
Available to Purchase
Journal:
Journal of Experimental Biology
J Exp Biol (1993) 175 (1): 173–194.
Published: 1 February 1993
...-to-water ammonia partial pressure diffusion gradient and NH 4 + electrochemical gradient. Urea excretion ( J urea ) almost doubled at 24–48h of pH10 exposure. Activities of ornithine–urea cycle enzymes in the liver were very low and there was no induction at pH10. However, all three enzymes...