Size- and age-dependent changes in adductor muscle swimming physiology of the scallop Aequipecten opercularis.

Size- and age-dependent changes in adductor muscle swimming physiology of the scallop Aequipecten opercularis. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Size- and age-dependent changes in adductor muscle swimming physiology of the scallop Aequipecten opercularis. Abstract Text:

The decline of cellular and especially mitochondrial functions with age is, among other causes, held responsible for a decrease in physiological fitness and exercise capacity during lifetime. We investigated size- and age-related changes in the physiology of exercising specimens of the short lived swimming scallop Aequipecten opercularis (maximum life span 8 to 10 years) from the Isle of Man, UK. A. opercularis swim mainly to avoid predators, and a decrease in swimming abilities would increase the risk of capture and lower the rates of survival. Bigger (older) individuals were found to have lower mitochondrial volume density and aerobic capacities (citrate synthase activity and adenylates) as well as less anaerobic capacity deduced from the amount of glycogen stored in muscle tissue. Changes in redox potential, tissue pH and the loss of glutathione in the swimming muscle during the exercise were more pronounced in young compared to older individuals. This indicates that older individuals can more effectively stabilize cellular homeostasis during repeated exercise than younger animals but with a possible fitness cost as the change in physiology with age and size might result in a changed escape response behaviour towards predators.

Size- and age-dependent changes in adductor muscle swimming physiology of the scallop Aequipecten opercularis. Publishing Authors By Initials

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Size- and age-dependent changes in adductor muscle swimming physiology of the scallop Aequipecten opercularis. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: The Journal of experimental biology

VOLUME: 211

Page Numbers: 2492-501

Journal Abbreviation: J. Exp. Biol.

ISSN: 0022-0949

DAY: 15

MONTH: Aug

YEAR: 2008

Size- and age-dependent changes in adductor muscle swimming physiology of the scallop Aequipecten opercularis. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 243705

Size- and age-dependent changes in adductor muscle swimming physiology of the scallop Aequipecten opercularis. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Size- and age-dependent changes in adductor muscle swimming physiology of the scallop Aequipecten opercularis. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Size- and age-dependent changes in adductor muscle swimming physiology of the scallop Aequipecten opercularis.

AFFILIATION: Alfred-Wegener-Institute for Polar and Marine Research, Department of Biosciences, 27570 Bremerhaven, Germany.

Country: England

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: J Exp Biol

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Size- and age-dependent changes in adductor muscle swimming physiology of the scallop Aequipecten opercularis Related Publications

• 'Moisturizers' and perioral dermatitis.
• APPLIED SANITATION IN ALABAMA.
• Annular erythematous plaques and tibial pain in a child. Sweet syndrome.
• Balloon catheters and transluminal dilatation: technical considerations.
• Eczema herpeticum, primary and recurrent.
• Effects of seasonal and latitudinal cold on oxidative stress parameters and activation of hypoxia inducible factor (HIF-1) in zoarcid fish.
• Familial cutaneous collagenoma. Report of cases.
• Identification of a Lysosomal Peptide Transport System Induced during Dendritic Cell Development.
• LETTER TO THE EDITOR.
• Letters to the Editor.
• Lichen sclerosus et atrophicus in a vaccination site.
• Measurement of the neutrino asymmetry parameter B in neutron decay.
• Measurement of the proton asymmetry parameter in neutron Beta decay.
• Multiple glomus tumors. A clinical and electron microscopic study.
• Peptide Specificity and Lipid Activation of the Lysosomal Transport Complex ABCB9 (TAPL).
• Results of Bacterial Plate Counts of Milk on Three Media and at Two Temperatures of Incubation.
• Size- and age-dependent changes in adductor muscle swimming physiology of the scallop Aequipecten opercularis.
• The metric system, standards and the angiographer.
• [Double blind cross-over study with lonazolac-Ca and diclofenac-Na in 30 patients with chronic polyarthritis]