Lipid profiles as indicators of functional senescence in the medfly
Changes associated with the age-related decline of physiological functions, and their relation with mortality rates, are thoroughly being investigated in the aging research field. We used the Mediterranean fruit fly . Ceratitis capitata, largely studied by biodemographers, as a model for functional...
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todo:paper_05315565_v47_n6_p465_PujolLereis2023-10-03T15:34:12Z Lipid profiles as indicators of functional senescence in the medfly Pujol-Lereis, L.M. Rabossi, A. Quesada-Allué, L.A. Aging indicator Biodemography Ceratitis capitata Functional state Negative geotaxis Thermal stress abdomen age article controlled study demography Drosophila lifespan lipid analysis medfly Mediterranean fruit fly mortality nonhuman principal component analysis priority journal quantitative analysis senescence temperature stress thin layer chromatography thorax Abdomen Aging Animals Ceratitis capitata Female Head Heat-Shock Response Lipid Metabolism Male Principal Component Analysis Survival Analysis Thorax Ceratitis capitata Hexapoda Changes associated with the age-related decline of physiological functions, and their relation with mortality rates, are thoroughly being investigated in the aging research field. We used the Mediterranean fruit fly . Ceratitis capitata, largely studied by biodemographers, as a model for functional senescence studies. The aim of our work was to find novel combinatorial indicators able to reflect the functional state of adult insects, regardless of chronological age. We studied the profiles of neutral and polar lipids of head, thorax and abdomen of standard populations kept at 23. °C, at different ages. Lipid classes were separated by thin layer chromatography, and the quantitative values were used to find patterns of change using a multivariate principal component analysis approach. The lipid-dependent principal components obtained correlated with age, and differences between sexes were consistent with differences in the shape of the survival curves and the mortality parameters. These same components were able to discriminate populations with a behavioral decline due to a mild 28. °C thermal stress. Thus, young populations at 28. °C showed similar lipid profiles than old populations at 23. °C. The results indicated that the lipid-dependent components reflect the functional state of the flies, and so were named functional state components (FSCs). It is proposed that FSCs may be used as functional senescence indicators. © 2012 Elsevier Inc. Fil:Pujol-Lereis, L.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Rabossi, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Quesada-Allué, L.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_05315565_v47_n6_p465_PujolLereis |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Aging indicator Biodemography Ceratitis capitata Functional state Negative geotaxis Thermal stress abdomen age article controlled study demography Drosophila lifespan lipid analysis medfly Mediterranean fruit fly mortality nonhuman principal component analysis priority journal quantitative analysis senescence temperature stress thin layer chromatography thorax Abdomen Aging Animals Ceratitis capitata Female Head Heat-Shock Response Lipid Metabolism Male Principal Component Analysis Survival Analysis Thorax Ceratitis capitata Hexapoda |
| spellingShingle |
Aging indicator Biodemography Ceratitis capitata Functional state Negative geotaxis Thermal stress abdomen age article controlled study demography Drosophila lifespan lipid analysis medfly Mediterranean fruit fly mortality nonhuman principal component analysis priority journal quantitative analysis senescence temperature stress thin layer chromatography thorax Abdomen Aging Animals Ceratitis capitata Female Head Heat-Shock Response Lipid Metabolism Male Principal Component Analysis Survival Analysis Thorax Ceratitis capitata Hexapoda Pujol-Lereis, L.M. Rabossi, A. Quesada-Allué, L.A. Lipid profiles as indicators of functional senescence in the medfly |
| topic_facet |
Aging indicator Biodemography Ceratitis capitata Functional state Negative geotaxis Thermal stress abdomen age article controlled study demography Drosophila lifespan lipid analysis medfly Mediterranean fruit fly mortality nonhuman principal component analysis priority journal quantitative analysis senescence temperature stress thin layer chromatography thorax Abdomen Aging Animals Ceratitis capitata Female Head Heat-Shock Response Lipid Metabolism Male Principal Component Analysis Survival Analysis Thorax Ceratitis capitata Hexapoda |
| description |
Changes associated with the age-related decline of physiological functions, and their relation with mortality rates, are thoroughly being investigated in the aging research field. We used the Mediterranean fruit fly . Ceratitis capitata, largely studied by biodemographers, as a model for functional senescence studies. The aim of our work was to find novel combinatorial indicators able to reflect the functional state of adult insects, regardless of chronological age. We studied the profiles of neutral and polar lipids of head, thorax and abdomen of standard populations kept at 23. °C, at different ages. Lipid classes were separated by thin layer chromatography, and the quantitative values were used to find patterns of change using a multivariate principal component analysis approach. The lipid-dependent principal components obtained correlated with age, and differences between sexes were consistent with differences in the shape of the survival curves and the mortality parameters. These same components were able to discriminate populations with a behavioral decline due to a mild 28. °C thermal stress. Thus, young populations at 28. °C showed similar lipid profiles than old populations at 23. °C. The results indicated that the lipid-dependent components reflect the functional state of the flies, and so were named functional state components (FSCs). It is proposed that FSCs may be used as functional senescence indicators. © 2012 Elsevier Inc. |
| format |
JOUR |
| author |
Pujol-Lereis, L.M. Rabossi, A. Quesada-Allué, L.A. |
| author_facet |
Pujol-Lereis, L.M. Rabossi, A. Quesada-Allué, L.A. |
| author_sort |
Pujol-Lereis, L.M. |
| title |
Lipid profiles as indicators of functional senescence in the medfly |
| title_short |
Lipid profiles as indicators of functional senescence in the medfly |
| title_full |
Lipid profiles as indicators of functional senescence in the medfly |
| title_fullStr |
Lipid profiles as indicators of functional senescence in the medfly |
| title_full_unstemmed |
Lipid profiles as indicators of functional senescence in the medfly |
| title_sort |
lipid profiles as indicators of functional senescence in the medfly |
| url |
http://hdl.handle.net/20.500.12110/paper_05315565_v47_n6_p465_PujolLereis |
| work_keys_str_mv |
AT pujollereislm lipidprofilesasindicatorsoffunctionalsenescenceinthemedfly AT rabossia lipidprofilesasindicatorsoffunctionalsenescenceinthemedfly AT quesadaalluela lipidprofilesasindicatorsoffunctionalsenescenceinthemedfly |
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1807316078784675840 |