Effects of dietary restriction or swimming on lymphocytes and macrophages functionality from old rats

Marcela Meneguello-Coutinho, Erico Caperuto, Aline Villa Nova Bacurau, Grabriela Chamusca, Marco Carlos Uchida, Ramires Alsamir Tibana, Guilherme Borges Pereira, James Wilfred Navalta, Frederick Wasinski, Claudia Regina Cavaglieri, Jonato Prestes, Luis Fernando Bicudo Pereira Costa Rosa, Reury Frank Bacurau

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Although aging compromises the functionality of macrophages (MΦ) and lymphocytes (LY), and dietary restriction (DR) and exercise partially counterbalance immunosenescence, it is unknown what effects of both strategies have on the functionality of these immune cells. Rats were randomly distributed into adult control (AD), older group (OLD), older submitted to 50% of DR (DR) and older submitted to swimming (EX) (n = 10 in each group). The function of immune cells (proliferative index, phagocytic capacity and H2O2 production), the weight and protein content of lymphoid organs (thymus and spleen), plasma glutamine concentration, interleukins (IL-1, IL-2, IL-6) and, immunoglobulins (IgA and IgG) were analysed. There was an increase of 74% in body weight in aged animals as compared with the AD group, while body weight reduced 19% in the DR as compared with the OLD group. Swimming training stimulated MΦ phagocytosis, while the EX group presented a decrease of the proliferative capacity of LY from the mesenteric lymph nodes (44% and 62%, respectively), when stimulated with ConA and LPS as compared with the old rats. These data demonstrated that DR and exercise affects differentially MΦ and LY function.

Original languageEnglish
Pages (from-to)113-122
Number of pages10
JournalImmunological Investigations
Volume43
Issue number2
DOIs
Publication statusPublished - 2014

Keywords

  • Aging
  • Caloric restriction
  • Cell function
  • Exercise
  • Immune system
  • Weight loss

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