BMC veterinary research · 2023
The in vitro effects of probiotic bacteria on genital pathogens of female dogs.
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Edyta Golińska, Natalia Sowińska, Marlena Szydło, Natalia Witka, Joanna Lenarczyk, Arent Zbigniew, Magdalena Strus
Аннотация
BACKGROUND: An important aspect in the microbiology of the reproductive system of small animals is the potential occurrence of probiotic bacteria, such as lactic acid bacteria (LAB) of the genus Lactobacillus. The presence of these microorganisms is significant due to their strong antibacterial and antifungal properties. This study aimed to select probiotic strains from the oral cavity and vagina that have outstanding antibacterial properties against typical genital pathogens of the female dog reproductive tract.
RESULTS: The antagonistic activity of ten LAB strains was tested against seven etiological agents isolated from the genital tract of female dogs with signs of inflammation. LAB strains with the greatest ability to inhibit the growth of indicator bacteria were Lactobacillus plantarum and L. acidophilus, while L. fermentum and L. brevis strains inhibited growth the least. Almost all strains showed a complete lack of adherence to Caco-2 epithelial cells.
CONCLUSIONS: All tested LAB isolates inhibited the in vitro growth of either Gram-positive or Gram-negative pathogens, suggesting that potential probiotic strains could contribute to the balance of the normal vaginal microbiota. Furthermore, they could be considered for use as prophylactic agents or as an alternative to antibiotic therapy for infections in dogs.
RESULTS: The antagonistic activity of ten LAB strains was tested against seven etiological agents isolated from the genital tract of female dogs with signs of inflammation. LAB strains with the greatest ability to inhibit the growth of indicator bacteria were Lactobacillus plantarum and L. acidophilus, while L. fermentum and L. brevis strains inhibited growth the least. Almost all strains showed a complete lack of adherence to Caco-2 epithelial cells.
CONCLUSIONS: All tested LAB isolates inhibited the in vitro growth of either Gram-positive or Gram-negative pathogens, suggesting that potential probiotic strains could contribute to the balance of the normal vaginal microbiota. Furthermore, they could be considered for use as prophylactic agents or as an alternative to antibiotic therapy for infections in dogs.