Fonseca JF, Alvim LB, Nunes ÁC, Oliveira FMS, Amaral RS, Caliari MV, Nicoli JR, Neumann E, Gomes MA. Probiotic effect of Bifidobacterium longum 5
1A and Weissella paramesenteroides WpK4 on gerbils infected with Giardia lamblia.
J Appl Microbiol 2019;
127:1184-1191. [PMID:
31155822 DOI:
10.1111/jam.14338]
[Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 03/13/2019] [Accepted: 05/23/2019] [Indexed: 12/25/2022]
Abstract
AIMS
The objective of this study was to assess the probiotic potential of genuine strains of Bifidobacterium longum 51A and Weissella paramesenteroides WpK4, in experimental giardiasis.
METHODS AND RESULTS
The bacteria were administered orally to gerbils (Meriones unguiculatus) 10 days before oral infection with trophozoites of Giardia lamblia. After 7 days of infection, the animals were euthanized and portions of the duodenum were processed for histopathologic, histochemical and morphometric assessment. The height of the intestinal crypts and crypt/villi ratio were higher in infected groups (P < 0·05) than in noninfected groups. The area of mucus production was higher (P < 0·05) in infected animals pretreated with B. longum 51A than in other groups. The parasitic load of the animals that received both bacteria decreased significantly (P < 0·05) compared to the ones of the control group.
CONCLUSIONS
Our results suggest a probiotic function of B. longum 51A and W. paramesenteroides WpK4 and may result in their use as a prophylactic and therapeutic alternative for promoting human and animal health.
SIGNIFICANCE AND IMPACT OF THE STUDY
Bifidobacterium longum 51A and W. paramesenteroides WpK4 may constitute prophylactic alternatives, reversing the emergence of side effects and resistance observed in the conventional treatment of giardiasis.
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