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The ratio of prematurely aging to non-prematurely aging mice cohabiting, conditions their behavior, immunity and lifespan

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Garrido Tarrio, Antonio and Cruces, Julia and Ceprián, Noemí and Díaz del Cerro, E. and Félix, J. and Fuente del Rey, Mónica de la (2020) The ratio of prematurely aging to non-prematurely aging mice cohabiting, conditions their behavior, immunity and lifespan. Journal of Neuroimmunology, 343 (577240). pp. 1-17. ISSN 0165-5728, ESSN: 1872-8421

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Official URL: https://www.sciencedirect.com/science/article/abs/pii/S0165572820300023



Abstract

Adult prematurely aging mice (PAM) show behavioral deterioration, premature immunosenescence and increased oxidative stress, impairments that are associated with their shorter lifespan, compared to the corresponding exceptional non-prematurely aging mice (ENPAM). When PAM live in a predominantly ENPAM environment (2/5, respectively) they exhibit an improvement of immunity and redox state in their spleen and thymus leukocytes, and an increased lifespan. Nevertheless, it is unknown if other PAM/ENPAM ratios could affect behavioral and peritoneal leukocyte functions of PAM and change their lifespan. ENPAM and PAM were divided into the following groups: C-ENPAM (8 ENPAM in the cage); C-PAM (8 PAM in the cage); ENPAM > 50% and PAM < 50% (5 ENPAM/2 PAM in each cage); ENPAM = 50% and PAM = 50% (4 ENPAM/ 4 PAM in each cage), and PAM > 50% and ENPAM < 50% (5 PAM/2 ENPAM in each cage). After two months, mice were submitted to a battery of behavioral tests. Several functions and oxidative stress parameters were then assessed in their peritoneal leukocytes. Animals were maintained in these conditions to analyze their lifespan. The results showed that PAM > 50%, PAM = 50% and PAM < 50% exhibited better behavioral responses, immunity and redox states in their peritoneal leukocytes than C-PAM. This improvement was higher when the number of ENPAM in the cage was increased, with most of the parameters in PAM < 50% reaching similar values to those in C-ENPAM, and an increased lifespan. However, ENPAM that cohabited with PAM showed, in general, an impairment of parameters studied. In conclusion, the PAM/ENPAM cohabitation ratio is relevant to behavior and immunity


Item Type:Article
Uncontrolled Keywords:Social environmental; Strategy prematurely; Aging Mice Behavior; Immunity; Mean lifespan
Subjects:Medical sciences > Medicine > Immunology
Medical sciences > Biology > Animal physiology
Medical sciences > Biology > Genetics
ID Code:60825
Deposited On:09 Jun 2020 08:42
Last Modified:09 Jun 2020 08:42

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