Allometry (scaling) of blood components in mammals: connection with economy of energy?

2.50
Hdl Handle:
http://hdl.handle.net/2336/37092
Title:
Allometry (scaling) of blood components in mammals: connection with economy of energy?
Authors:
Kjeld, M; Olafsson, Ö
Citation:
Can. J. Zool. 2008, 86(8):890–9
Issue Date:
1-Aug-2008
Abstract:
Hematocrit (HCT), blood hemoglobin (HGB), and serum concentrations of 14 commonly measured serum constituents in mammals were extracted from 131 publications published within the last 35 years and then subjected to allometric study (Y = aWb, where Y is the characteristic studied, W is body mass, and b is the scaling exponent). HCT and HGB values decreased (b < 0; p < 0.001) with body mass (W), as did serum K+, glucose, triglycerides, and urea values. In contrast, serum total protein and creatinine values increased (b > 0; p < 0.02 and p < 0.001, respectively) with W. The associations of HCT, HGB, glucose, triglycerides, and urea values with W may be assumed to coincide with the well-known reduction of metabolic rate per unit mass with increasing W of mammals. The decrease in serum K+ values (p < 0.001) has yet to be adequately explained. Despite the ratio of muscle mass and W being constant for large and small mammals, serum values of creatinine rose (b = 0.14; p < 0.0001) with W. This suggests increased phosphocreatine turnover in muscles with W, which in turn might be connected to the increased efficiency reported for leg muscles in larger animals and, conceivably, might affect the measurement of metabolic rate and hence its scaling in mammals
Description:
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Additional Links:
http://pubs.nrc-cnrc.gc.ca/rp-ps/journalDetail.jsp?jcode=cjz&lang=eng

Full metadata record

DC FieldValue Language
dc.contributor.authorKjeld, M-
dc.contributor.authorOlafsson, Ö-
dc.date.accessioned2008-09-03T10:09:20Z-
dc.date.available2008-09-03T10:09:20Z-
dc.date.issued2008-08-01-
dc.date.submitted2008-09-02-
dc.identifier.citationCan. J. Zool. 2008, 86(8):890–9en
dc.identifier.issn0008-4301-
dc.identifier.doi10.1139/Z08-061-
dc.identifier.urihttp://hdl.handle.net/2336/37092-
dc.descriptionTo access full text version of this article. Please click on the hyperlink "View/Open" at the bottom of this pageen
dc.description.abstractHematocrit (HCT), blood hemoglobin (HGB), and serum concentrations of 14 commonly measured serum constituents in mammals were extracted from 131 publications published within the last 35 years and then subjected to allometric study (Y = aWb, where Y is the characteristic studied, W is body mass, and b is the scaling exponent). HCT and HGB values decreased (b < 0; p < 0.001) with body mass (W), as did serum K+, glucose, triglycerides, and urea values. In contrast, serum total protein and creatinine values increased (b > 0; p < 0.02 and p < 0.001, respectively) with W. The associations of HCT, HGB, glucose, triglycerides, and urea values with W may be assumed to coincide with the well-known reduction of metabolic rate per unit mass with increasing W of mammals. The decrease in serum K+ values (p < 0.001) has yet to be adequately explained. Despite the ratio of muscle mass and W being constant for large and small mammals, serum values of creatinine rose (b = 0.14; p < 0.0001) with W. This suggests increased phosphocreatine turnover in muscles with W, which in turn might be connected to the increased efficiency reported for leg muscles in larger animals and, conceivably, might affect the measurement of metabolic rate and hence its scaling in mammalsen
dc.language.isoenen
dc.publisherNRC Research Pressen
dc.relation.urlhttp://pubs.nrc-cnrc.gc.ca/rp-ps/journalDetail.jsp?jcode=cjz&lang=engen
dc.titleAllometry (scaling) of blood components in mammals: connection with economy of energy?en
dc.typeArticleen
dc.identifier.eissn1480-3283-
dc.identifier.journalCanadian journal of zoologyen
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