Potential probiotic of Lactobacillus strains isolated from the intestinal tracts of pigs and feces of dogs with antibacterial activity against multidrug-resistant pathogenic bacteria.

The objective of this study was to identify and isolate lactic acid bacterial (LAB) strains from the intestinal tracts of pigs and feces of dogs and then characterize them as potential probiotics with antimicrobial activity against multidrug-resistant pathogenic bacteria. In a preliminary isolation screening, 45 of 1167 isolated LAB strains were found to have anti-S. aureus ATCC 27,735 activity. Using 16S rDNA and 16S-23S rDNA intergenic spacer region (ISR) sequences, five of these isolates were further identified as Lactobacillus animalis 30a-2, Lactobacillus reuteri 4-12E, Weissella cibaria C34, Lactococcus lactis 5-12H, and Lactococcus lactis 6-3H. Antimicrobial substance assays suggest that the L. lactis 5-12H, L. lactis 6-3H, L. animalis 30a-2, L. reuteri 4-12E, and W. cibaria C34 strains might produce bacteriocins and hydrogen peroxide (H2O2) as antimicrobial substances. The L. animalis 30a-2 and W. cibaria C34 strains were further characterized for probiotic properties and shown to have high acid and bile salt tolerance. Additionally, they have broad antimicrobial spectra, and can significantly repress the growth of all of the tested strains of MRSA isolates, some MDRAB, ESBL E. coli, and P. aeruginosa isolates, along with food-borne pathogenic bacteria such as Bacillus cereus ATCC 11778, Listeria monocytogens ATCC 19111, Salmonella spp., Shigella spp., and Yersinia enterocolitica BCRC 12986. This is the first report of H2O2-producing L. animalis 30a-2 and W. cibaria C...
Source: Archives of Microbiology - Category: Microbiology Authors: Tags: Arch Microbiol Source Type: research

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Authors: Reissier S, Cattoir V Abstract INTRODUCTION: Streptogramins (pristinamycin and quinupristin-dalfopristin) can be interesting options for the treatment of infections due to Gram-positive cocci, especially multidrug-resistant isolates. AREAS COVERED: This review provides an updated overview on structural and activity characteristics, mechanisms of action and resistance, pharmacokinetic/pharmacodynamic and clinical use of streptogramins. EXPERT OPINION: The streptogramin antibiotics act by inhibition of the bacterial protein synthesis. They are composed of two chemically distinct compounds, namely typ...
Source: Expert Review of Anti-Infective Therapy - Category: Infectious Diseases Tags: Expert Rev Anti Infect Ther Source Type: research
CONCLUSIONS: Xyloglucan/gelose plus ORS was effective and safe in treating acute diarrhea in children. PMID: 33028102 [PubMed - as supplied by publisher]
Source: Expert Review of Gastroenterology and Hepatology - Category: Gastroenterology Tags: Expert Rev Gastroenterol Hepatol Source Type: research
Conclusions: (1) Data at our center suggests at least a regional implementation gap in GBS screening and IAP. (2) The decline in the resistance rate ofE. coli for all antimicrobial substances might indicate that the reduction of prenatal antibiotics use is beneficial and that neonatal antibiotic stewardship programs should include pregnant women as well.What is Known:• GBS screening and intrapartum antibiotic prophylaxis led to a 32%-reduction in GBS disease in Germany with a 0.75 (92:122) ratio of early-onset disease to late-onset disease in 2009–2010.• Prenatal antibiotic use might increase the risk of E....
Source: European Journal of Pediatrics - Category: Pediatrics Source Type: research
Publication date: Available online 9 October 2020Source: Microbiological ResearchAuthor(s): Akhilesh Kumar, Saurabh Singh, Arpan Mukherjee, Rajesh Prasad Rastogi, Jay Prakash Verma
Source: Microbiological Research - Category: Infectious Diseases Source Type: research
This study investigated antibacterial-producing Streptomyces isolated from the gut of estuarine fish Chanos chanos, emphasizing screening for the producer of peptide-containing antibacterial compounds. Eighteen isolates were found during preliminary screening, in which four isolates showed the best antibacterial activities. Based on the morphological, physiological, and biochemical characterization, as well as 16S rRNA partial sequencing, all of the four isolates belonged to Streptomyces. Three isolates were suspected as novel isolate candidates based on homology presentations and phylogenetic tree analysis. Disk-diffusion...
Source: International Journal of Microbiology - Category: Microbiology Tags: Int J Microbiol Source Type: research
Publication date: Available online 9 October 2020Source: Colloids and Surfaces B: BiointerfacesAuthor(s): Cezhi Du, Chengyong Wang, Jianbo Sui, Lijuan Zheng
Source: Colloids and Surfaces B: Biointerfaces - Category: Biochemistry Source Type: research
Publication date: 25 February 2021Source: Journal of Alloys and Compounds, Volume 855, Part 1Author(s): Leyuan Li, Yanchen Liu, Haobin Yu, Ruiting Sun, Zhiyu Ding, Kaikai Li, Qunhui Yuan, Junwei Wu, Xingjun Liu
Source: Journal of Alloys and Compounds - Category: Chemistry Source Type: research
CONCLUSION: There is a high prevalence of MRSA causing abscesses in the Hispanic population evaluated in an ED in Puerto Rico. Systemic antibiotic use for the treatment of skin abscesses after incision and drainage remains high despite published guidelines arguing against their widespread use. Clindamycin resistance in our patient population appears to be more frequent than previously reported. PMID: 33031694 [PubMed - as supplied by publisher]
Source: Puerto Rico Health Sciences Journal - Category: International Medicine & Public Health Tags: P R Health Sci J Source Type: research
Publication date: December 2020Source: Microbial Pathogenesis, Volume 149Author(s): Cemile Selin Aksoy, Fatma Gizem Avci, Osman Mutluhan Ugurel, Basak Atas, Nihat Alpagu Sayar, Berna Sariyar Akbulut
Source: Microbial Pathogenesis - Category: Infectious Diseases Source Type: research
Publication date: Available online 9 October 2020Source: Journal of Global Antimicrobial ResistanceAuthor(s): Elma L. Leite, Wydemberg J. Araújo, Tatiana R. Vieira, Karoline S. Zenato, Priscylla C. Vasconcelos, Samuel Cibulski, Patricia E.N. Givisiez, Marisa R.I. Cardoso, Celso J.B. Oliveira
Source: Journal of Global Antimicrobial Resistance - Category: Infectious Diseases Source Type: research
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