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Background & aim: Immunosenescence can increase morbi-mortality. Lactic acid producing bacteria may improve immunity and reduce morbidity and mortality in the elderly. We aimed to investigate the effects of a mixture of two new probiotic strains of Lactobacillus plantarum —CECT 7315 and 7316— on systemic immunity in elderly. Methods: 50 institutionalized elderly subjects were randomized, in a double-blind fashion, to receive for 12 weeks 1) 5·108 cfu/day of L. plantarum CECT7315/7316 (“low probiotic dose”) (n = 13), 2) 5·109 cfu/day of the probiotic mixture (“high probiotic dose”) (n = 19), or 3) placebo (n = 15). Leukocyte subpopulations, and cytokine levels (IL-1 , IL-10, TGF-β1) were measured in venous blood at baseline, end of treatment (week 12), and end of follow-up (week 24). Infection and survival rates were recorded. Results: After treatment, high probiotic dose resulted in significant increases in the percentages of activated potentially T-suppressor (CD8+CD25+) and NK (CD56+ CD16+) cells, while low probiotic dose increased activated T-helper lymphocytes (CD4+CD25+), B lymphocytes (CD19+), and antigen presenting cells (HLA-DR+). Also, plasma TGF-β1 concentration significantly decreased after treatment with both probiotic doses. Most of these changes remained 12 weeks after probiotic discontinuation. Incidence of infections during treatment showed a significant trend to be lower in the high probiotic dose group. In addition, there was a significant trend for mortality to be greater in the placebo group vs. both probiotic groups. Conclusions: Depending on the dose, L. plantarum CECT7315/7316 have different immune-enhancing effects in elderly subjects. These effects might result in a better clinical outcome.
Palabras Clave: Immune cells. Cytokines. Aging. Probiotics. Lactobacillus plantarum.
Fhaira Petter Da Silva , Loiva Beatriz Dallepiane , Vanessa Ramos Kirsten , Rosane Maria Kirchner
José Miguel Senabre Gallego , Esteban Salas Heredia , Gregorio Santos Soler , José Rosas
Mª José Sendrós Madroño
Cristina Casals-vázquez , Ernesto Suárez-cadenas , Francisca María Estébanez Carvajal , María Pilar Aguilar Trujillo , María M. Jiménez Arcos , María Ángeles Vázquez Sáchez
Yeny Concha-Cisternas , Fanny Petermann Rocha , Alex Garrido-Méndez , Ximena Díaz-Martínez , Ana María Leiva , Carlos Salas-Bravo , María Adela Martínez-Sanguinetti , José A. Iturra-González , Carlos Matus , Jaime A. Vásquez Gómez , Carlos Celis-Morales
María Dolores Ballesteros Pomar , Elena González Arnaiz
Amelia Martí del Moral , Francesca Fortique
Leticia de Albuquerque Araújo , Alejandra J. Álvarez H. , Iván Palomo G. , Miguel A. Bustamante U.
Eduardo Méndez Riestra , Benjamín Fernández-García , Pedro Farias , Noé Galán , Cecilia Díaz-Méndez , Eduardo Iglesias-Gutiérrez
Pedro Pugliesi Abdalla , Analiza Mónica Silva , Ana Cláudia Rossini Venturini , André Pereira dos Santos , Anderson dos Santos Carvalho , Vitor Antonio Assis Alves Siqueira , Euripedes Barsanulfo Gomide , Natália Maira da Cruz Alves , Eduardo Ferriolli , Dalmo Roberto Lopes Machado
Gloria Cubas de Basterrechea , Carolina González Antón , Carmen de la Vega-Hazas Pérez , Iñaki Elío Pascual , Pedro Muñoz Cacho
Daniel Vicentini de Oliveira , Braulio Henrique Magnani Branco , Mariana Costa de Jesus , Walter Sepúlveda-Loyola , Héctor Gonzáles-Caro , Gabriel Lucas Morais Freire , Natália Quevedo dos Santos , José Roberto Andrade do Nascimento Júnior
Ana Isabel Jiménez-Ortega , Rosa María Martínez García , Marta Velasco Rodríguez-Belvis , Ana Belén Martínez Zazo , María Dolores Salas-González , Esther Cuadrado-Soto
Francisco Guarner
Ana Maria Campos Martinez , Carmen Elizabeth Fernández Marín , Aida Ruiz López , Isabel Cubero Millán , José Uberos Fernández
Kaiwen Sun , Zhenzhu Liu , Hongyan Wang
Sonia López-Cisneros , Ailema González-Ortiz , Samuel Ramos-Acevedo , Ángeles Espinosa-Cuevas
Julián Herrera Mejía , Arnulfo Ramos-Jiménez , Florinda Jiménez Vega , Rocío Campos Vega , Aaron F. González Córdova , Abraham Wall-Medrano
YanPing Liu , Dejian Ma , XiYan Wang , YunZhi Fang
Qiwei Xie , Jiatian Yuan , Yaoweng Wang
Enrique Díaz de León González , Hugo Gutiérrez Hermosillo , Jorge Luis Alberto Morales Torres
Merve Tokpunar , K. Esen Karaca Çelik , Murat Baş , Hakan Kuleaşan , Aylin Korkut Altıntaş
Gözde Okburan , Murat Baş , Sultan Ogmen
Fatma Özgüç Çömlek , Muslu Kazım Körez
Sibel Bulut , Seray Kabaran
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