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Qi Q, Wang L, Zhu Y, Li S, Gebremedhin MA, Wang B, Zhu Z, Zeng L. Unraveling the Microbial Symphony: Impact of Antibiotics and Probiotics on Infant Gut Ecology and Antibiotic Resistance in the First Six Months of Life. Antibiotics (Basel) 2024; 13:602. [PMID: 39061284 PMCID: PMC11274100 DOI: 10.3390/antibiotics13070602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/24/2024] [Accepted: 06/05/2024] [Indexed: 07/28/2024] Open
Abstract
We aimed to examine the effects of antibiotic and probiotic usage on the gut microbiota structure and the presence of antibiotic-resistance genes (ARGs) in infants during the first six months of life. Questionnaires and fecal samples were collected within three days of birth, two months, and six months to assess antibiotic and probiotic exposure. Gut microbiotas were sequenced via 16S rRNA, and ARGs were conducted by qPCR, including beta-lactam (mecA, blaTEM), tetracycline (tetM), fluoroquinolone (qnrS), aminoglycoside (aac(6')-Ib), and macrolide (ermB). Infants were categorized by antibiotic and probiotic usage and stratified by delivery mode, microbial composition, and ARG abundances were compared, and potential correlations were explored. A total of 189 fecal samples were analyzed in this study. The gut microbiota diversity (Chao1 index) was significantly lower in the "only probiotics" (PRO) group compared to the "neither antibiotics nor probiotics" (CON) group at six months for the CS stratification (p = 0.029). Compositionally, the abundance of core genus Bifidobacterium_pseudocatenulatum was less abundant for the antibiotic during delivery (IAP) group than that in the CON group within the first three days (p = 0.009), while core genus Enterococcus_faecium was more abundant in the PRO than that in the CON group (p = 0.021) at two months. ARGs were highly detected, with Enterococcus hosting tetM and Escherichia associated with blaTEM within three days of birth, though no correlation was found between Bifidobacterium and ARGs. These findings emphasized the critical importance of carefully managing antibiotic and probiotic exposures in early life, with implications for promoting lifelong health through preserving a healthy infant gut ecosystem.
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Affiliation(s)
- Qi Qi
- Department of Epidemiology and Biostatistics, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an 710061, China; (Q.Q.); (L.W.); (Y.Z.); (M.A.G.); (B.W.)
| | - Liang Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an 710061, China; (Q.Q.); (L.W.); (Y.Z.); (M.A.G.); (B.W.)
| | - Yingze Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an 710061, China; (Q.Q.); (L.W.); (Y.Z.); (M.A.G.); (B.W.)
| | - Shaoru Li
- Experimental Teaching Center, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an 710061, China;
| | - Mitslal Abrha Gebremedhin
- Department of Epidemiology and Biostatistics, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an 710061, China; (Q.Q.); (L.W.); (Y.Z.); (M.A.G.); (B.W.)
| | - Baozhu Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an 710061, China; (Q.Q.); (L.W.); (Y.Z.); (M.A.G.); (B.W.)
- Department of Health, Northwest Women’s and Children’s Hospital, Xi’an 710003, China
| | - Zhonghai Zhu
- Department of Epidemiology and Biostatistics, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an 710061, China; (Q.Q.); (L.W.); (Y.Z.); (M.A.G.); (B.W.)
| | - Lingxia Zeng
- Department of Epidemiology and Biostatistics, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an 710061, China; (Q.Q.); (L.W.); (Y.Z.); (M.A.G.); (B.W.)
- Center for Chronic Disease Control and Prevention, Global Health Institution, Xi’an Jiaotong University, Xi’an 710061, China
- Key Laboratory for Disease Prevention and Control and Health Promotion of Shaanxi Province, Xi’an 710061, China
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2
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Roozbahani F, Ahanjan M, Moshiri M, Abediankenari S, Goli HR, Kakavan M, Gholami M. Characterization of Antimicrobial Activities of Bifidobacterium lactis BB-12 and Their Inhibitory Effect Against Some Foodborne Pathogens. Foodborne Pathog Dis 2024; 21:370-377. [PMID: 38578010 DOI: 10.1089/fpd.2023.0182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024] Open
Abstract
Bifidobacterium animalis subsp. lactis BB-12, a probiotic, has shown potential to promote health benefits and control pathogens. This study aimed to investigate the effectiveness of BB-12 and its cell-free supernatant (CFS) in inhibiting the growth of Listeria monocytogenes and Salmonella enterica serovar Typhimurium. To assess the antimicrobial activity of BB-12, agar well diffusion, disk diffusion, and minimum inhibitory concentration (MIC) tests were conducted. The bicinchoninic acid (BCA) assay was performed to measure the protein concentration in CFS. The study's results indicated that the BB-12 strain inhibited the pathogens' growth. The disk diffusion test using BB-12 showed inhibitory results ranging from 11 to 14 mm for both bacteria. The agar well diffusion test reported the zone of inhibition ranging from 11.6 to 16 mm for both bacteria. The MIC test was conducted as a confirmatory test, which demonstrated the highest inhibitory zone using 2 McFarland (6 × 108 CFU/mL) concentrations of probiotics on L. monocytogenes (44.98%) and S. Typhimurium (66.41%). The disk diffusion test revealed that the probiotic CFS had a significant inhibitory impact on S. Typhimurium with a 16.6 mm zone of inhibition. The BCA test findings indicated that the 24- and 48-h CFSs exhibited inhibitory properties against infections. Notably, the 24-h CFS, including a protein level of 78.47 μg/mL, demonstrated a more pronounced inhibitory impact on both pathogens. The findings highlight that utilizing the BB-12 strain and its CFS can serve as a viable approach to battle infections, enhancing food safety and public health.
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Affiliation(s)
- Fatemeh Roozbahani
- Department of Medical Microbiology and Virology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mohammad Ahanjan
- Department of Medical Microbiology and Virology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mona Moshiri
- Department of Immunology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Saeid Abediankenari
- Department of Immunology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hamid Reza Goli
- Department of Medical Microbiology and Virology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Maedeh Kakavan
- Department of Medical Microbiology and Virology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mehrdad Gholami
- Department of Medical Microbiology and Virology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
- Immunogenetics Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
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3
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Du Y, Xu J, Li J, Wu R. Evaluation of Probiotic Properties and Safety of Lactobacillus helveticus LH10 Derived from Vinegar through Comprehensive Analysis of Genotype and Phenotype. Microorganisms 2024; 12:831. [PMID: 38674775 PMCID: PMC11052092 DOI: 10.3390/microorganisms12040831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/10/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
The probiotic potential of Lactobacillus helveticus LH10, derived from vinegar Pei, a brewing mixture, was assessed through genotype and phenotype analyses. The assembled genome was comprised of 1,810,276 bp and predicted a total of 2044 coding sequences (CDSs). Based on the whole genome sequence analysis, two bacteriocin gene clusters were identified, while no pathogenic genes were detected. In in vitro experiments, L. helveticus LH10 exhibited excellent tolerance to simulated gastrointestinal fluid, a positive hydrophobic interaction with xylene, and good auto-aggregation properties. Additionally, this strain demonstrated varying degrees of resistance to five antibiotics, strong antagonistic activity against four tested pathogens, and no hemolytic activity. Therefore, L. helveticus LH10 holds great promise as a potential probiotic candidate deserving further investigation for its beneficial effects on human health.
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Affiliation(s)
| | | | | | - Renwei Wu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; (Y.D.); (J.X.); (J.L.)
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Hoang KL, Read TD, King KC. Incomplete immunity in a natural animal-microbiota interaction selects for higher pathogen virulence. Curr Biol 2024; 34:1357-1363.e3. [PMID: 38430909 PMCID: PMC10962313 DOI: 10.1016/j.cub.2024.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/18/2023] [Accepted: 02/07/2024] [Indexed: 03/05/2024]
Abstract
Incomplete immunity in recovered hosts is predicted to favor more virulent pathogens upon re-infection in the population.1 The microbiota colonizing animals can generate a similarly long-lasting, partial immune response, allowing for infection but dampened disease severity.2 We tracked the evolutionary trajectories of a widespread pathogen (Pseudomonas aeruginosa), experimentally passaged through populations of nematodes immune-primed by a natural microbiota member (P. berkeleyensis). This bacterium can induce genes regulated by a mitogen-activated protein kinase (MAPK) signaling pathway effective at conferring protection against pathogen-induced death despite infection.3 Across host populations, this incomplete immunity selected for pathogens more than twice as likely to kill as those evolved in non-primed (i.e., naive) or immune-compromised (mutants with a knockout of the MAPK ortholog) control populations. Despite the higher virulence, pathogen molecular evolution in immune-primed hosts was slow and constrained. In comparison, evolving pathogens in immune-compromised hosts were characterized by substantial genomic differentiation and attenuated virulence. These findings directly attribute the incomplete host immunity induced from microbiota as a significant force shaping the virulence and evolutionary dynamics of novel infectious diseases.
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Affiliation(s)
- Kim L Hoang
- Department of Biology, University of Oxford, 11a Mansfield Road, Oxford OX1 3SZ, UK; Division of Infectious Diseases, Emory University School of Medicine, 1760 Haygood Drive, Atlanta, GA 30322, USA.
| | - Timothy D Read
- Division of Infectious Diseases, Emory University School of Medicine, 1760 Haygood Drive, Atlanta, GA 30322, USA
| | - Kayla C King
- Department of Biology, University of Oxford, 11a Mansfield Road, Oxford OX1 3SZ, UK; Department of Zoology, University of British Columbia, 6270 University Boulevard, Vancouver, BC V6T 1Z4, Canada; Department of Microbiology & Immunology, University of British Columbia, 1365 - 2350 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada.
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Boyte ME, Akhtar N, Koshy B, Roe AL. A Review of Probiotic Ingredient Safety Supporting Monograph Development Conducted by the United States Pharmacopeia (USP). J Diet Suppl 2024:1-39. [PMID: 38356247 DOI: 10.1080/19390211.2024.2314488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
The United States Pharmacopeia (USP) is an independent, nonprofit science-based organization whose mission is to improve global health through public standards and related products for medicines, food and dietary supplements. Probiotic-based dietary supplements are increasingly popular in the marketplace and USP has developed fourteen monographs specific to probiotic ingredients, including representatives from the Genera Lactobacillus, Bacillus, Streptococcus, and Bifidobacterium. These monographs include the definition of the article, tests for identification, quantification assays (enumeration in the case of probiotics), limits for contaminants, and other quality parameters when appropriate. In addition to quality, the USP also considers the safety of probiotics for monograph development. This report includes an overview of the USP admission evaluation process for probiotics as well as a tabular summary of the probiotic monographs currently available. Pharmacopeia monographs can guide manufacturers and brand owners and protect consumers through establishment of quality standards.
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Affiliation(s)
- Marie-Eve Boyte
- Dietary Supplement Admission Evaluation and Labeling Expert Committee, United States Pharmacopeia, Rockville, Maryland, USA
| | - Nadeem Akhtar
- United States Pharmacopeia, Rockville, Maryland, USA
| | - Binu Koshy
- United States Pharmacopeia, Rockville, Maryland, USA
| | - Amy L Roe
- Dietary Supplement Admission Evaluation and Labeling Expert Committee, United States Pharmacopeia, Rockville, Maryland, USA
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Adumuah NN, Quarshie JT, Danwonno H, Aikins AR, Ametefe EN. Exploring Anti-Breast Cancer Effects of Live Pediococcus acidilactici and Its Cell-Free Supernatant Isolated from Human Breast Milk. Int J Breast Cancer 2024; 2024:1841909. [PMID: 38314029 PMCID: PMC10838206 DOI: 10.1155/2024/1841909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/12/2024] [Accepted: 01/17/2024] [Indexed: 02/06/2024] Open
Abstract
Current breast cancer treatment options are limited by drug resistance and adverse side effects, which calls for the need for alternatives or complementary remedies. Probiotic bacteria isolated from human breast milk have been shown to possess proapoptotic and anti-inflammatory properties against breast mastitis in breastfeeding mothers and are being studied as possible anticancer regimens. Thus, this study aimed at exploring the effect of lactic acid bacteria isolated from human breast milk on MDA-MB 231 breast cancer cells. A total of twenty-two bacteria were isolated from four human breast milk samples. The isolates were characterized and identified using biochemical tests and Sanger sequencing, respectively. For in vitro experiments, we used isolated P. acidilactici to treat MDA-MB-231 cells, and an MTT assay was used to detect proliferation. RT-qPCR and wound healing assays were performed to determine the effect of the isolated P. acidilactici on breast cancer cytokine expression and migration. Exposure of MDA-MB 231 breast cancer cells to live P. acidilactici and its cell-free supernatant (CFS) for 24 h resulted in a reduction in cancer cell viability. Also, the expression of the cytokines IL-6, IL-8, and IL-10 in the breast cancer cells increased following exposure to P. acidilactici and its CFS for 24 and 72 h. Additionally, the levels of the SLUG gene remained unchanged while the TWIST1 gene was upregulated following exposure of the cancer cells to bacteria, indicating that P. acidilactici may promote epithelial-mesenchymal transition in breast cancer. Finally, the CFS significantly inhibited cancer cell mobility. These findings serve as a foundation to further investigate the usefulness of P. acidilactici as a potential therapeutic agent in breast cancer therapy.
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Affiliation(s)
- Naa N. Adumuah
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), Department of Biochemistry Cell and Molecular Biology, University of Ghana, Accra, Ghana
| | - Jude T. Quarshie
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), Department of Biochemistry Cell and Molecular Biology, University of Ghana, Accra, Ghana
| | - Harry Danwonno
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), Department of Biochemistry Cell and Molecular Biology, University of Ghana, Accra, Ghana
| | - Anastasia R. Aikins
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), Department of Biochemistry Cell and Molecular Biology, University of Ghana, Accra, Ghana
| | - Elmer N. Ametefe
- West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), Department of Biochemistry Cell and Molecular Biology, University of Ghana, Accra, Ghana
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Matias LLR, Damasceno KSFDSC, Pereira AS, Passos TS, Morais AHDA. Innovative Biomedical and Technological Strategies for the Control of Bacterial Growth and Infections. Biomedicines 2024; 12:176. [PMID: 38255281 PMCID: PMC10813423 DOI: 10.3390/biomedicines12010176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/05/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Antibiotics comprise one of the most successful groups of pharmaceutical products. Still, they have been associated with developing bacterial resistance, which has become one of the most severe problems threatening human health today. This context has prompted the development of new antibiotics or co-treatments using innovative tools to reverse the resistance context, combat infections, and offer promising antibacterial therapy. For the development of new alternatives, strategies, and/or antibiotics for controlling bacterial growth, it is necessary to know the target bacteria, their classification, morphological characteristics, the antibiotics currently used for therapies, and their respective mechanisms of action. In this regard, genomics, through the sequencing of bacterial genomes, has generated information on diverse genetic resources, aiding in the discovery of new molecules or antibiotic compounds. Nanotechnology has been applied to propose new antimicrobials, revitalize existing drug options, and use strategic encapsulating agents with their biochemical characteristics, making them more effective against various bacteria. Advanced knowledge in bacterial sequencing contributes to the construction of databases, resulting in advances in bioinformatics and the development of new antimicrobials. Moreover, it enables in silico antimicrobial susceptibility testing without the need to cultivate the pathogen, reducing costs and time. This review presents new antibiotics and biomedical and technological innovations studied in recent years to develop or improve natural or synthetic antimicrobial agents to reduce bacterial growth, promote well-being, and benefit users.
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Affiliation(s)
- Lídia Leonize Rodrigues Matias
- Biochemistry and Molecular Biology Postgraduate Program, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59078-970, RN, Brazil;
| | | | - Annemberg Salvino Pereira
- Nutrition Course, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal 59078-970, RN, Brazil;
| | - Thaís Souza Passos
- Nutrition Postgraduate Program, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal 59078-970, RN, Brazil; (K.S.F.d.S.C.D.); (T.S.P.)
| | - Ana Heloneida de Araujo Morais
- Biochemistry and Molecular Biology Postgraduate Program, Biosciences Center, Federal University of Rio Grande do Norte, Natal 59078-970, RN, Brazil;
- Nutrition Postgraduate Program, Center for Health Sciences, Federal University of Rio Grande do Norte, Natal 59078-970, RN, Brazil; (K.S.F.d.S.C.D.); (T.S.P.)
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Shen X, Xie A, Li Z, Jiang C, Wu J, Li M, Yue X. Research Progress for Probiotics Regulating Intestinal Flora to Improve Functional Dyspepsia: A Review. Foods 2024; 13:151. [PMID: 38201179 PMCID: PMC10778471 DOI: 10.3390/foods13010151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/05/2023] [Accepted: 12/08/2023] [Indexed: 01/12/2024] Open
Abstract
Functional dyspepsia (FD) is a common functional gastrointestinal disorder. The pathophysiology remains poorly understood; however, alterations in the small intestinal microbiome have been observed. Current treatments for FD with drugs are limited, and there are certain safety problems. A class of active probiotic bacteria can control gastrointestinal homeostasis, nutritional digestion and absorption, and the energy balance when taken in certain dosages. Probiotics play many roles in maintaining intestinal microecological balance, improving the intestinal barrier function, and regulating the immune response. The presence and composition of intestinal microorganisms play a vital role in the onset and progression of FD and serve as a critical factor for both regulation and potential intervention regarding the management of this condition. Thus, there are potential advantages to alleviating FD by regulating the intestinal flora using probiotics, targeting intestinal microorganisms. This review summarizes the research progress of probiotics regarding improving FD by regulating intestinal flora and provides a reference basis for probiotics to improve FD.
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Affiliation(s)
- Xinyu Shen
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China; (X.S.); (Z.L.); (C.J.); (J.W.)
| | - Aijun Xie
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 119077, Singapore;
| | - Zijing Li
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China; (X.S.); (Z.L.); (C.J.); (J.W.)
| | - Chengxi Jiang
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China; (X.S.); (Z.L.); (C.J.); (J.W.)
| | - Jiaqi Wu
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China; (X.S.); (Z.L.); (C.J.); (J.W.)
| | - Mohan Li
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China; (X.S.); (Z.L.); (C.J.); (J.W.)
| | - Xiqing Yue
- Shenyang Key Laboratory of Animal Product Processing, Shenyang Agricultural University, Shenyang 110866, China
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Abebe AA, Birhanu AG. Methicillin Resistant Staphylococcus aureus: Molecular Mechanisms Underlying Drug Resistance Development and Novel Strategies to Combat. Infect Drug Resist 2023; 16:7641-7662. [PMID: 38111667 PMCID: PMC10726795 DOI: 10.2147/idr.s428103] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 11/29/2023] [Indexed: 12/20/2023] Open
Abstract
Antimicrobial resistance (AMR) represents a major threat to global health. Infection caused by Methicillin-resistant Staphylococcus aureus (MRSA) is one of the well-recognized global public health problem globally. In some regions, as many as 90% of S. aureus infections are reported to be MRSA, which cannot be treated with standard antibiotics. WHO reports indicated that MRSA is circulating in every province worldwide, significantly increasing the risk of death by 64% compared to drug-sensitive forms of the infection which is attributed to its antibiotic resistance. The emergence and spread of antibiotic-resistant MRSA strains have contributed to its increased prevalence in both healthcare and community settings. The resistance of S. aureus to methicillin is due to expression of penicillin-binding protein 2a (PBP2a), which renders it impervious to the action of β-lactam antibiotics including methicillin. The other is through the production of beta-lactamases. Although the treatment options for MRSA are limited, there are promising alternatives to antibiotics to combat the infections. Innovative therapeutic strategies with wide range of activity and modes of action are yet to be explored. The review highlights the global challenges posed by MRSA, elucidates the mechanisms underlying its resistance development, and explores mitigation strategies. Furthermore, it focuses on alternative therapies such as bacteriophages, immunotherapy, nanobiotics, and antimicrobial peptides, emphasizing their synergistic effects and efficacy against MRSA. By examining these alternative approaches, this review provides insights into the potential strategies for tackling MRSA infections and combatting the escalating threat of AMR. Ultimately, a multifaceted approach encompassing both conventional and novel interventions is imperative to mitigate the impact of MRSA and ensure a sustainable future for global healthcare.
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Affiliation(s)
- Assefa Asnakew Abebe
- Department of Molecular Biology, Institute of Biotechnology, Addis Ababa University, Addis Ababa, Ethiopia
- Department of Medical laboratory Sciences, Institute of Health, Bule Hora University, Bule Hora, Ethiopia
| | - Alemayehu Godana Birhanu
- Department of Molecular Biology, Institute of Biotechnology, Addis Ababa University, Addis Ababa, Ethiopia
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Ghanipour F, Nazari R, Aghaei SS, Jafari P. Effect of lipopeptide extracted from Bacillus licheniformis on the expression of bap and luxI genes in multi-drug-resistant Acinetobacter baumannii and Pseudomonas aeruginosa. Amino Acids 2023; 55:1891-1907. [PMID: 37907777 DOI: 10.1007/s00726-023-03346-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 10/03/2023] [Indexed: 11/02/2023]
Abstract
Recently, opportunistic pathogens like Acinetobacter baumannii and Pseudomonas aeruginosa have caused concern due to their ability to cause antibiotic resistance in weakened immune systems. As a result, researchers are always seeking efficient antimicrobial agents to tackle this issue. The hypothesis of the recent study was that probiotic products derived from bacteria would be effective in reducing drug resistance in other bacteria. This research aimed to investigate the antimicrobial properties of probiotic products from various bacterial strains, including Lactobacillus rhamnosus, Pediococcus acidilactisi, Bacillus coagulans, Bacillus subtilis, and Bacillus licheniformis. These were tested against multi-drug-resistant (MDR) standard strains A. baumannii and P. aeruginosa. B. licheniformis was found to be the most effective probiotic strain, possessing the LanA and LanM lantibiotic genes. The lipopeptide nature of the probiotic product was confirmed through high-performance liquid chromatography (HPLC) and Fourier-transform infrared spectroscopy (FTIR) techniques. The anti-biofilm and antimicrobial properties of this probiotic were measured using an SEM electron microscope and minimum inhibitory concentration (MIC) test. Real-time PCR (qPCR) was used to compare the expression of bap and luxI genes, which are considered virulence factors of drug-resistant bacteria, before and after treatment with antimicrobial agents. The MIC results showed that the probiotic product prevented the growth of bacteria at lower concentrations compared to antibiotics. In addition, the ΔΔCqs indicated that gene expression was significantly down-regulated following treatment with the obtained probiotic product. It was found that B. licheniformis probiotic products could reduce drug resistance in other bacteria, making it a potential solution to antibiotic resistance.
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Affiliation(s)
- Farangis Ghanipour
- Department of Microbiology, Faculty of Basic Sciences, Qom Branch, Islamic Azad University, 15 Khordad Boulevard, Qom, Iran
| | - Razieh Nazari
- Department of Microbiology, Faculty of Basic Sciences, Qom Branch, Islamic Azad University, 15 Khordad Boulevard, Qom, Iran.
| | - Seyed Soheil Aghaei
- Department of Microbiology, Faculty of Basic Sciences, Qom Branch, Islamic Azad University, 15 Khordad Boulevard, Qom, Iran
| | - Parvaneh Jafari
- Department of Microbiology, Faculty of Basic Sciences, Arak Branch, Islamic Azad University, Arak, 3749113191, Iran
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Kaszab E, Laczkó L, Kardos G, Bányai K. Antimicrobial resistance genes and associated mobile genetic elements in Lactobacillales from various sources. Front Microbiol 2023; 14:1281473. [PMID: 38045025 PMCID: PMC10690630 DOI: 10.3389/fmicb.2023.1281473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 11/03/2023] [Indexed: 12/05/2023] Open
Abstract
Lactobacillales are commonly used in food products and as probiotics in animal and human medicine. Despite being generally recognized as safe, lactic acid bacteria may harbor a variety of antimicrobial resistance genes (ARGs), which may be transferable to human or veterinary pathogens, thus, may pose veterinary and public health concerns. This study investigates the resistome of Lactobacillales. A total of 4,286 whole-genome sequences were retrieved from NCBI RefSeq database. We screened ARGs in whole genome sequences and assessed if they are transmissible by plasmid transfer or by linkage to integrative mobile genetic elements. In the database, 335 strains were found to carry at least one ARG, and 194 strains carried at least one potentially transferable ARG. The most prevalent transferable ARG were tetM and tetW conferring antibiotic resistance to tetracycline. This study highlights the importance of the One Health concept by demonstrating the potential for Lactobacillales, commonly used in food products, to serve as reservoirs and vectors for ARGs.
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Affiliation(s)
- Eszter Kaszab
- HUN-REN Veterinary Medical Research Institute, Budapest, Hungary
- One Health Institute, Faculty of Health Sciences, University of Debrecen, Debrecen, Hungary
- National Laboratory of Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, Veterinary Medical Research Institute, Budapest, Hungary
| | - Levente Laczkó
- One Health Institute, Faculty of Health Sciences, University of Debrecen, Debrecen, Hungary
- HUN-REN-DE Conservation Biology Research Group, Debrecen, Hungary
| | - Gábor Kardos
- One Health Institute, Faculty of Health Sciences, University of Debrecen, Debrecen, Hungary
- National Laboratory of Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, Veterinary Medical Research Institute, Budapest, Hungary
- National Public Health Center, Budapest, Hungary
- Department of Gerontology, Faculty of Health Sciences, University of Debrecen, Debrecen, Hungary
| | - Krisztián Bányai
- HUN-REN Veterinary Medical Research Institute, Budapest, Hungary
- National Laboratory of Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, Veterinary Medical Research Institute, Budapest, Hungary
- Department of Pharmacology and Toxicology, University of Veterinary Medicine, Budapest, Hungary
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Liakina V. Antibiotic resistance in patients with liver cirrhosis: Prevalence and current approach to tackle. World J Clin Cases 2023; 11:7530-7542. [DOI: 10.12998/wjcc.v11.i31.7530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/02/2023] [Accepted: 10/17/2023] [Indexed: 11/06/2023] Open
Abstract
Regardless of etiology, complications with bacterial infection in patients with cirrhosis are reported in the range of 25%-46% according to the most recent data. Due to frequent episodes of bacterial infection and repetitive antibiotic treatment, most often with broad-spectrum gram negative coverage, patients with cirrhosis are at increased risk of encountering multidrug resistant bacteria, and this raises concern. In such patients, extended-spectrum beta-lactamase and AmpC-producing Enterobacterales, methicillin- or vancomycin-resistant Staphylococcus aureus, vancomycin-resistant Enterococci, carbapenem-resistant Pseudomonas aeruginosa, and Acinetobacter baumannii, all of which are difficult to treat, are the most common. That is why novel approaches to the prophylaxis and treatment of bacterial infections to avoid antibiotic resistance have recently been developed. At the same time, our knowledge of resistance mechanisms is constantly updated. This review summarizes the current situation regarding the burden of antibiotic resistance, including the prevalence and mechanisms of intrinsic and acquired resistance in bacterial species that most frequently cause complications in patients with liver cirrhosis and recent developments on how to deal with multidrug resistant bacteria.
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Affiliation(s)
- Valentina Liakina
- Clinic of Gastroenterology, Nephrourology and Surgery, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius 01513, Lithuania
- Department of Chemistry and Bioengineering, Faculty of Fundamental Sciences, Vilnius Tech, Vilnius 10223, Lithuania
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Barreto Pinilla CM, Guzman Escudero F, Torres Silva E Alves A, Spadoti LM, Brandelli A. Draft Genome Sequence and Comparative Genome Analysis Reveal Potential Functional Properties in Lacticaseibacillus paracasei ItalPN16. Curr Microbiol 2023; 80:399. [PMID: 37910267 DOI: 10.1007/s00284-023-03515-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/06/2023] [Indexed: 11/03/2023]
Abstract
Nowadays, there is a great interest on rapid and effective methods for initial identification of probiotic bacteria. In this work, potential probiotic features of the lactic acid bacteria strain ItalPN16 isolated from a traditional Brazilian cheese were studied using bioinformatic tools. The complete genome sequence was obtained, and in silico analyses were carried out to identify the strain and its potential probiotic properties. The sequenced genome (3.02 Mb) presented 3126 protein-coding sequences distributed on 244 SEED subsystems, classifying the strain as nomadic lactobacilli. Phylogenetic and ANI analyses allowed to locate the ItalPN16 strain as a member of the Lacticaseibacillus paracasei group, due to the highest number of orthologous genes in common with reference L. paracasei strains (>98%). In silico analyses revealed the presence of CDSs related to microbe-host interactions, such as adhesion proteins and exopolysaccharide biosynthesis genes. The comparative analysis reveals the presence of a strain-specific glycosyl transferases, compared with other three L. paracasei strains and a high level of protein expression (92%) with the probiotic L. paracasei BL29. The results obtained here indicated interesting probiotic features of the strain L. paracasei ItalPN16 that could favor a future application in the food industry.
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Affiliation(s)
| | | | - Adriana Torres Silva E Alves
- Dairy Technology Center (TECNOLAT) of the Food Technology Institute (ITAL), Campinas, São Paulo, 13070-178, Brazil
| | - Leila Maria Spadoti
- Dairy Technology Center (TECNOLAT) of the Food Technology Institute (ITAL), Campinas, São Paulo, 13070-178, Brazil
| | - Adriano Brandelli
- Laboratory of Applied Microbiology and Biochemistry, Institute of Food Science and Technology (ICTA), Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, 91501-970, Brazil
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Salamandane A, Cahango G, Muetanene BA, Malfeito-Ferreira M, Brito L. Multidrug Resistance in Enterococci Isolated from Cheese and Capable of Producing Benzalkonium Chloride-Resistant Biofilms. BIOLOGY 2023; 12:1353. [PMID: 37887063 PMCID: PMC10604254 DOI: 10.3390/biology12101353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/16/2023] [Accepted: 10/20/2023] [Indexed: 10/28/2023]
Abstract
This study aimed to investigate enterococci recovered from eight Portuguese cheeses made with raw ewe's milk, regarding antibiotic resistance, virulence genes, minimum inhibitory concentration (MIC) of benzalkonium chloride (BAC), biofilm formation capacity, and biofilm eradication (MBEC) by BAC. Antimicrobial resistance against seven antibiotics of five groups was evaluated using the disk diffusion method. The presence of the genes that encode resistance to the antibiotics penicillin (blaZ), erythromycin (ermA, ermB, and ermC), vancomycin (vanA and vanB), aminoglycoside (aac(6')-Ie-aph(2″)-Ia), and β-lactam (pbp5) and the genes that encode virulence factors, frsB, cylA, gelE, esp, and agg, were investigated via multiplex PCR. The susceptibility of planktonic cells to BAC was evaluated by the MIC and MBC values of the isolates, using the broth microdilution method. To assess the biofilm-forming ability and resistance of biofilms to BAC, biofilms were produced on stainless steel coupons, followed by exposure to BAC. The results showed a high resistance to the antibiotics vancomycin (87.5%), erythromycin (75%), tetracycline (50%), and penicillin (37.5%). Multidrug resistance was observed in 68.8% of the isolates. Genes encoding the virulence factors FrsB (frsB) and gelatinase E (gelE) were detected in all isolates. The esp and cylA genes were found in 56.3% and 37.5% of the isolates, respectively. All isolates exhibited a biofilm-forming ability, regardless of incubation time and temperature tested. However, after 72 h at 37 °C, E. faecium and E. faecalis biofilms showed significant differences (p ≤ 0.05). Although most isolates (62.5%) were susceptible to BAC (MIC ≤ 10 mg/L), biofilms of the same isolates were, generally, resistant to the higher concentration of BAC (80 mg/mL) tested. This study using Enterococcus isolates from a ready-to-eat food, such as cheese, reveals the high percentages of vancomycin resistance and multidrug resistance, associated with the presence of virulence genes, in isolates also capable of producing biofilms resistant to BAC, an important active ingredient of many disinfectants. These results emphasize the need for effective control measures to ensure the safety and quality of dairy products.
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Affiliation(s)
- Acácio Salamandane
- LEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Associate Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisbon, Portugal; (G.C.); (M.M.-F.); (L.B.)
- Faculdade de Ciências de Saúde, Universidade Lúrio, Campus Universitário de Marrere, Nampula 4250, Mozambique
| | - Gomes Cahango
- LEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Associate Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisbon, Portugal; (G.C.); (M.M.-F.); (L.B.)
- CNIC—Centro Nacional de Investigação Científica, Avenida Ho Chi Min, Luanda 201, Angola
| | - Belo Afonso Muetanene
- Faculdade de Ciências Agrárias, Universidade Lúrio, Campus Universitário de Unango, Sanga 3300, Mozambique;
| | - Manuel Malfeito-Ferreira
- LEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Associate Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisbon, Portugal; (G.C.); (M.M.-F.); (L.B.)
| | - Luísa Brito
- LEAF—Linking Landscape, Environment, Agriculture and Food Research Center, Associate Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisbon, Portugal; (G.C.); (M.M.-F.); (L.B.)
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Sanz-García F, Gil-Gil T, Laborda P, Blanco P, Ochoa-Sánchez LE, Baquero F, Martínez JL, Hernando-Amado S. Translating eco-evolutionary biology into therapy to tackle antibiotic resistance. Nat Rev Microbiol 2023; 21:671-685. [PMID: 37208461 DOI: 10.1038/s41579-023-00902-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/19/2023] [Indexed: 05/21/2023]
Abstract
Antibiotic resistance is currently one of the most important public health problems. The golden age of antibiotic discovery ended decades ago, and new approaches are urgently needed. Therefore, preserving the efficacy of the antibiotics currently in use and developing compounds and strategies that specifically target antibiotic-resistant pathogens is critical. The identification of robust trends of antibiotic resistance evolution and of its associated trade-offs, such as collateral sensitivity or fitness costs, is invaluable for the design of rational evolution-based, ecology-based treatment approaches. In this Review, we discuss these evolutionary trade-offs and how such knowledge can aid in informing combination or alternating antibiotic therapies against bacterial infections. In addition, we discuss how targeting bacterial metabolism can enhance drug activity and impair antibiotic resistance evolution. Finally, we explore how an improved understanding of the original physiological function of antibiotic resistance determinants, which have evolved to reach clinical resistance after a process of historical contingency, may help to tackle antibiotic resistance.
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Affiliation(s)
- Fernando Sanz-García
- Departamento de Microbiología, Medicina Preventiva y Salud Pública, Universidad de Zaragoza, Zaragoza, Spain
| | - Teresa Gil-Gil
- Centro Nacional de Biotecnología, CSIC, Darwin 3, Madrid, Spain
- Programa de Doctorado en Biociencias Moleculares, Universidad Autónoma de Madrid, Madrid, Spain
| | - Pablo Laborda
- Centro Nacional de Biotecnología, CSIC, Darwin 3, Madrid, Spain
- The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kongens Lyngby, Denmark
- Department of Clinical Microbiology, 9301, Rigshospitalet, Copenhagen, Denmark
| | - Paula Blanco
- Molecular Basis of Adaptation, Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
- VISAVET Health Surveillance Centre, Universidad Complutense Madrid, Madrid, Spain
| | | | - Fernando Baquero
- Department of Microbiology, Hospital Universitario Ramón y Cajal (IRYCIS), CIBER en Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
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Mao Y, Wang Y, Luo X, Chen X, Wang G. Impact of cell-free supernatant of lactic acid bacteria on Staphylococcus aureus biofilm and its metabolites. Front Vet Sci 2023; 10:1184989. [PMID: 37397004 PMCID: PMC10310794 DOI: 10.3389/fvets.2023.1184989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 05/26/2023] [Indexed: 07/04/2023] Open
Abstract
Introduction A safe bio-preservative agent, lactic acid bacteria (LAB) can inhibit the growth of pathogenic bacteria and spoilage organisms. Its cell-free supernatant (LAB-CFS), which is rich in bioactive compounds, is what makes LAB antibacterial work. Methods This study focused on the changes in biofilm activity and related metabolic pathways of S. aureus treated with lactic acid bacteria planktonic CFS (LAB-pk-CFS) and biofilm state (LAB-bf-CFS). Results The findings demonstrated that the LAB-CFS treatment considerably slowed Staphylococcus aureus (S. aureus) growth and prevented it from forming biofilms. Additionally, it inhibits the physiological traits of the S. aureus biofilm, including hydrophobicity, motility, eDNA, and PIA associated to the biofilm. The metabolites of S. aureus biofilm treated with LAB-CFS were greater in the LAB-bf-CFS than they were in the LAB-pk-CFS, according to metabolomics studies. Important metabolic pathways such amino acids and carbohydrates metabolism were among the most noticeably altered metabolic pathways. Discussion These findings show that LAB-CFS has a strong potential to combat S. aureus infections.
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Affiliation(s)
- Yanni Mao
- Veterinary Pharmacology Lab, School of Animal Science and Technology, Ningxia University, Yinchuan, China
| | - Yuxia Wang
- Veterinary Pharmacology Lab, School of Animal Science and Technology, Ningxia University, Yinchuan, China
| | - Xiaofeng Luo
- Veterinary Pharmacology Lab, School of Animal Science and Technology, Ningxia University, Yinchuan, China
| | - Xiaohui Chen
- Veterinary Pharmacology Lab, School of Animal Science and Technology, Ningxia University, Yinchuan, China
| | - Guiqin Wang
- Veterinary Pharmacology Lab, School of Animal Science and Technology, Ningxia University, Yinchuan, China
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17
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Chen J, Li J, Huang F, Fang J, Cao Y, Zhang K, Zhou H, Cai J, Cui W, Chen C, Zhang G. Clinical characteristics, risk factors and outcomes of Klebsiella pneumoniae pneumonia developing secondary Klebsiella pneumoniae bloodstream infection. BMC Pulm Med 2023; 23:102. [PMID: 36978069 PMCID: PMC10052803 DOI: 10.1186/s12890-023-02394-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 03/21/2023] [Indexed: 03/29/2023] Open
Abstract
Abstract
Purpose
The clinical characteristics of Klebsiella pneumoniae (KP) pneumonia and KP bloodstream infection (KP-BSI) are often reported, while the risk factors for KP pneumonia developing into secondary KP-BSI (KP-pneumonia/KP-BSI) are largely unknown. Therefore, this study attempted to investigate the clinical characteristics, risk factors and outcomes of KP-pneumonia/KP-BSI.
Methods
A retrospective observational study was conducted at a tertiary hospital between January 1, 2018, and December 31, 2020. The patients were divided into groups of KP pneumonia alone and KP pneumonia/KP-BSI, and the clinical information were collected from medical records electronic system.
Results
A total of 409 patients were finally recruited. According to the multivariate logistic regression analysis, male sex (adjusted odds ratio [aOR] 3.7; 95% CI, 1.44–9.5), immunosuppression (aOR, 13.52; 95% CI, 2.53,72.22), APACHE II score higher than 21 (aOR, 3.39; 95% CI, 1.41–8.12), serum procalcitonin (PCT) levels above 1.8 ng/ml (aOR, 6.37; 95% CI, 2.67–15.27), ICU stay of more than 2.5 days before pneumonia onset (aOR, 1.09; 95% CI, 1.02,1.17), mechanical ventilation (aOR, 4.96; 95% CI, 1.2,20.5), Klebsiella pneumoniae isolates producing extended spectrum β-lactamase (ESBL-positive KP) (aOR, 12.93; 95% CI, 5.26–31.76), and inappropriate antibacterial therapy (aOR, 12.38; 95% CI, 5.36–28.58) were independent factors of KP pneumonia/KP BSI. In comparison with the patients with KP pneumonia alone, the patients with KP pneumonia/KP BSI showed an almost 3 times higher incidence of septic shock (64.4% vs. 20.1%, p < 0.01), a longer duration of mechanical ventilation, and longer lengths of ICU stay and total hospital stay (median days, 15 vs. 4,19 vs. 6, 34 vs. 17, respectively, both p < 0.01). Additionally, the overall in-hospital crude mortality rate in the patients with KP-pneumonia/KP-BSI was more than two times higher than that in those with KP pneumonia alone (61.5% vs. 27.4%, p < 0.01).
Conclusion
Factors including male sex, immunosuppression, APACHE II score higher than 21, serum PCT levels above 1.8 ng/ml, ICU stay of more than 2.5 days before pneumonia onset, mechanical ventilation, ESBL-positive KP, and inappropriate antibacterial therapy are independent risk factors for KP pneumonia/KP-BSI. Of note, the outcomes in patients with KP pneumonia worsen once they develop secondary KP-BSI, which merits more attention.
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Reid G. Perspective: microbial interventions in the urinary tract. MICROBIOME RESEARCH REPORTS 2023; 2:3. [PMID: 38045610 PMCID: PMC10688806 DOI: 10.20517/mrr.2022.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/30/2023] [Accepted: 02/14/2023] [Indexed: 12/05/2023]
Abstract
Despite multiple advances in medicine, the management of urinary tract infections (UTIs) in women has remained stalled for decades. To prevent the development of symptomatic recurrences, low-dose antibiotics are the mainstay, while alternative approaches have been attempted with limited success. The use of probiotics was first considered forty years ago, and while some promising studies have been published, additional evidence in larger patient groups is needed to recommend specific strains as a primary preventive regimen. Overall, the role of beneficial microbes in reducing the risk of UTI and other urological diseases, such as urolithiasis, remains a target for researchers. The aim of this perspective is to offer a viewpoint on the status of this approach and recommendations for how to develop novel probiotic therapies.
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Affiliation(s)
- Gregor Reid
- Canadian R&D Centre for Human Microbiome and Probiotics, Lawson Health Research Institute, London, Ontario N6A 4V2, Canada
- Departments of Microbiology and Immunology, and Surgery, Western University, London, Ontario N6A 3K7, Canada
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Piewngam P, Khongthong S, Roekngam N, Theapparat Y, Sunpaweravong S, Faroongsarng D, Otto M. Probiotic for pathogen-specific Staphylococcus aureus decolonisation in Thailand: a phase 2, double-blind, randomised, placebo-controlled trial. THE LANCET. MICROBE 2023; 4:e75-e83. [PMID: 36646104 PMCID: PMC9932624 DOI: 10.1016/s2666-5247(22)00322-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 10/04/2022] [Accepted: 10/20/2022] [Indexed: 01/15/2023]
Abstract
BACKGROUND Decolonisation is considered a valuable means to reduce Staphylococcus aureus infection rates. However, previous topical strategies targeting the nose or skin had little success, and oral antibiotic-based decolonisation is ill advised because of eradication of the microbiota and development of antibiotic resistance. We previously showed that the probiotic Bacillus subtilis significantly diminished S aureus at the main intestinal colonisation site via specific bacterial interaction in mice; in this study, we tested this probiotic approach to control S aureus colonisation in humans. METHODS We did a single-centre, phase 2, double-blind, randomised, placebo-controlled trial in adults from the Songkhla region of Thailand who were colonised by S aureus. Eligible participants were adults (aged ≥18 years) without history of intestinal disease, antibiotic treatment, or hospital admission within the previous 90 days. Participants were excluded if they were pregnant, breastfeeding, taking probiotics, or had diarrhoea. Participants were allocated (1:1) to groups by computer randomisation in blocks of four, and research coordinators were masked to group allocation. Participants received 250 mg of probiotic B subtilis MB40 or placebo once per day for 30 days and S aureus colonisation was determined after the last dose was received. The primary outcome was colonisation by S aureus (continuous, mean decrease in colony-forming-unit count) in the intestine (by faecal counts) and nares (by nasal swabs) after intervention (30-day regimen of B subtilis probiotic). This trial is registered with the Thai Clinical Trials Registry, TCTR20210128003. FINDINGS The trial was done between Jan 29 and June 30, 2021, with enrolment taking place from Jan 29 to April 6, 2021. 115 participants were colonised by S aureus, either in the intestine (n=84), nose (n=50), or both (n=19), and were randomly assigned to treatment (n=55) and placebo groups (n=60). Oral probiotic B subtilis resulted in significant reduction of S aureus in stool (96·8%; p<0·0001) and nose (65·4%; p=0·0002). There were no differences in adverse effects or significant microbiome changes between the intervention and placebo groups. INTERPRETATION B subtilis probiotic eliminated more than 95% of the total S aureus colonising the human body without altering the microbiota. This probiotic strategy offers several key advantages over presently used decolonisation strategies for potential use in people with chronic or long-term risk of S aureus infection. Furthermore, by establishing a defining role of the intestinal colonisation site, our findings call for revisiting fundamental notions about S aureus colonisation. FUNDING National Research Council of Thailand and US National Institutes of Health.
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Affiliation(s)
- Pipat Piewngam
- Pathogen Molecular Genetics Section, Laboratory of Bacteriology, National Institute of Allergy and Infectious Diseases, US National Institutes of Health, Bethesda, MD, USA
| | - Sunisa Khongthong
- Faculty of Veterinary Science, Rajamangala University of Technology Srivijaya, Nakhon Si Thammarat, Thailand
| | - Natthrit Roekngam
- Department of Pharmaceutical Technology, Prince of Songkla University, Songkhla, Thailand
| | - Yongyuth Theapparat
- Interdisciplinary Graduate School of Nutraceutical and Functional Food, Prince of Songkla University, Songkhla, Thailand
| | - Somkiat Sunpaweravong
- Department of Surgery, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Damrongsak Faroongsarng
- Drug Delivery System Excellence Centre, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Songkhla, Thailand
| | - Michael Otto
- Pathogen Molecular Genetics Section, Laboratory of Bacteriology, National Institute of Allergy and Infectious Diseases, US National Institutes of Health, Bethesda, MD, USA.
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Effects of oral administration of Bifidobacterium animalis subsp. lactis HN019 on the treatment of plaque-induced generalized gingivitis. Clin Oral Investig 2023; 27:387-398. [PMID: 36305963 PMCID: PMC9614197 DOI: 10.1007/s00784-022-04744-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 10/02/2022] [Indexed: 01/28/2023]
Abstract
OBJECTIVES This double-blind, randomized, placebo-controlled clinical trial evaluated the adjuvant effects of Bifidobacterium lactis HN019 on the treatment of plaque-induced generalized gingivitis. MATERIALS AND METHODS Sixty patients were submitted to professional supragingival scaling and prophylaxis. They were randomly assigned to test (probiotic lozenges containing B. lactis HN019, n = 30) or control (placebo lozenges, n = 30) groups. Lozenges were consumed twice a day for 8 weeks. Bleeding on probing (BoP), Gingival Index (GI), Plaque Index (PI), probing depth (PD), and clinical attachment level (CAL) were evaluated at baseline and after 2 and 8 weeks. Gingival crevicular fluid (GCF) was collected at baseline and at 8 weeks for analysis of the inflammatory mediators IL-1β, IL-1α, IL-8, MCP-1, and MIP-1β. Data were statistically analyzed (p < 0.05). RESULTS After 8 weeks, both groups showed reduction in the percentage of PI, with no significant difference between groups (p = 0.7423). The test group presented a lower percentage of BoP and a higher percentage of sites with GI ≤ 1 when compared with the control group at the end of the study (p < 0.0001). At 8 weeks, the test group had a greater number of patients without generalized gingivitis than the control group (20 and 11 patients, respectively; p < 0.05). The test group presented significantly lower levels of IL-1α, IL-1β, and MCP-1 in GCF than the control group at the end of the study (p < 0.05). CONCLUSION The adjunct use of B. lactis HN019 promotes additional clinical and immunological benefits in the treatment of generalized gingivitis. CLINICAL RELEVANCE B. lactis HN019 can be an efficient and side-effect-free adjunct strategy in the treatment of generalized gingivitis.
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21
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Rodríguez-González S, González-Dávalos L, Robles-Rodríguez C, Lozano-Flores C, Varela-Echavarría A, Shimada A, Mora-Izaguirre O. Isolation of bacterial consortia with probiotic potential from the rumen of tropical calves. J Anim Physiol Anim Nutr (Berl) 2023; 107:62-76. [PMID: 35253270 PMCID: PMC10078749 DOI: 10.1111/jpn.13699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 01/10/2022] [Accepted: 02/06/2022] [Indexed: 01/10/2023]
Abstract
Probiotics are live microorganisms that confer health benefits to their animal host by balancing the composition of its gastrointestinal microbiota and modulating its immune response. In this work, we studied bacterial consortia isolated from the rumen of 28- and 42-day-old calves to select those showing probiotic capacity. Consortia were characterized and their growth dynamics were determined in several growth media. The number of viable bacteria was larger in the Man, Rogosa and Sharpe broth (MRS) than in nutritive medium A (MNA) and the largest was for A3D42. Antibiotic susceptibility of bacterial consortia in MRS was higher than in MNA and the most susceptible samples were A1D28 and A3D42. In turn, A3D42 showed the highest tolerance to bile salts in MRS and MNA. Moreover, all bacterial consortia showed optimal growth at pH 5, 5.5, 6 and 7 in both media, while their temperature tolerance was higher in MRS. The antagonistic activity of bacterial consortia in MNA was higher than in MRS with A2D42 showing the best antagonistic activity for Pseudomona aureginosa (ATCC 9027) and Staphylococcus aureus (ATCC 6538) in MNA. Additionally, A1D42 and A2D42 in MRS and A3D42 in MNA had significant adhesion to mucins, and A1D42 in MRS had the highest. Regarding their species composition, all bacterial consortia in MRS belonged to the phylum Firmicutes, and the class Bacilli and bacterial consortia in MNA belonged to three phyla; Proteobacteria, Firmicutes, and Bacteroidetes. Lactobacillus casei, Lactobacillus rhamnosus, Lactobacillus fermentum, and Lactobacillus johnsonii were identified in all bacterial consortia in MRS broth. Based on these results, A1D42 and A3D42 grown in MRS showed the best potential as probiotics for calves, which could result in health benefits and improve their production.
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Affiliation(s)
- Sarahí Rodríguez-González
- Laboratorio de Rumiología y Metabolismo Nutricional, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Querétaro, Mexico
| | - Laura González-Dávalos
- Laboratorio de Rumiología y Metabolismo Nutricional, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Querétaro, Mexico
| | - Carolina Robles-Rodríguez
- Laboratorio de Rumiología y Metabolismo Nutricional, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Querétaro, Mexico
| | - Carlos Lozano-Flores
- Instituto de Neurobiología, Universidad Nacional Autónoma de México, Querétaro, Mexico
| | | | - Armando Shimada
- Laboratorio de Rumiología y Metabolismo Nutricional, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Querétaro, Mexico
| | - Ofelia Mora-Izaguirre
- Laboratorio de Rumiología y Metabolismo Nutricional, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Querétaro, Mexico
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Xue P, Sang R, Li N, Du S, Kong X, Tai M, Jiang Z, Chen Y. A new approach to overcoming antibiotic-resistant bacteria: Traditional Chinese medicine therapy based on the gut microbiota. Front Cell Infect Microbiol 2023; 13:1119037. [PMID: 37091671 PMCID: PMC10117969 DOI: 10.3389/fcimb.2023.1119037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 01/12/2023] [Indexed: 04/25/2023] Open
Abstract
With the irrational use of antibiotics and the increasing abuse of oral antibiotics, the drug resistance of gastrointestinal pathogens has become a prominent problem in clinical practice. Gut microbiota plays an important role in maintaining human health, and the change of microbiota also affects the activity of pathogenic bacteria. Interfering with antibiotic resistant bacteria by affecting gut microbiota has also become an important regulatory signal. In clinical application, due to the unique advantages of traditional Chinese medicine in sterilization and drug resistance, it is possible for traditional Chinese medicine to improve the gut microbial microenvironment. This review discusses the strategies of traditional Chinese medicine for the treatment of drug-resistant bacterial infections by changing the gut microenvironment, unlocking the interaction between microbiota and drug resistance of pathogenic bacteria.
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Affiliation(s)
- Peng Xue
- Medical School of Nantong University, Nantong, Jiangsu, China
| | - Rui Sang
- Center for Basic Medical Research, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Nan Li
- Department of Histology and Embryology, Medical College, Nantong University, Nantong, Jiangsu, China
| | - Siyuan Du
- Medical School of Nantong University, Nantong, Jiangsu, China
| | - Xiuwen Kong
- Medical School of Nantong University, Nantong, Jiangsu, China
| | - Mingliang Tai
- Medical School of Nantong University, Nantong, Jiangsu, China
| | - Zhihao Jiang
- Center for Basic Medical Research, Medical School of Nantong University, Nantong, Jiangsu, China
| | - Ying Chen
- Department of Histology and Embryology, Medical College, Nantong University, Nantong, Jiangsu, China
- *Correspondence: Ying Chen,
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Aghamohammad S, Rohani M. Antibiotic resistance and the alternatives to conventional antibiotics: The role of probiotics and microbiota in combating antimicrobial resistance. Microbiol Res 2022; 267:127275. [PMID: 36493661 DOI: 10.1016/j.micres.2022.127275] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
From the introduction of the first antibiotic to the present day, the emergence of antibiotic resistance has been a difficult problem for medicine. Regardless of the type of antibiotic resistance, the presence of resistant isolates in clinical and even asymptomatic fecal carriers becomes a difficult public health problem. Therefore, the use of new antimicrobial combination therapies or alternative agents with antimicrobial activity that have the least side effects, including plant-, metal-, and nanoparticle-based agents, could be crucial and useful. Recently, the use of probiotics as a hypothetical candidate to combat infectious disease control and antimicrobial resistance has received notable attention. Considering the alteration of the microbiota in fecal carriers and also in patients with resistant bacterial isolates, the use of probiotics could have an appropriate effect on the balance of the microbial population. In this review, we have attempted to discuss the history of antimicrobial resistance and provide an overview of microbiota change and the use of probiotics as new agents with antimicrobial activity associated with the emergence of resistant isolates.
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Affiliation(s)
| | - Mahdi Rohani
- Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran.
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Angulo M, Guerra K, Ramos A, Monreal-Escalante E, Martínez E, Angulo C. Potential assessment of probiotic Cystobasidium benthicum LR192 strain in mice. Arch Microbiol 2022; 204:729. [PMID: 36434432 DOI: 10.1007/s00203-022-03337-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 11/08/2022] [Accepted: 11/15/2022] [Indexed: 11/26/2022]
Abstract
Antibiotic bacterial resistant is a huge concern worldwide and probiotics offer an alternative to mitigate it. This study explores Cystobasidium benthicum LR192 as possible probiotic through microbiological and immunological analyses in mouse model. C. benthicum LR192 was isolated from lichens in a hyperarid environment in Baja California Sur, Mexico. First, microbiological analysis was assessed using 1 × 105 CFU/mL in YM broth: resistance to 1% of bile salts and pH of 2, 3 and 5 (control). Then, yeast capacity to adhere onto the intestinal mucosa and safety to mouse splenocytes were tested. Finally, immunological parameters (phagocytic ability, respiratory burst and myeloperoxidase activities, nitric oxide and IgG production) and immune-associated gene expression (IL-1β, IL-6 and INF-γ) were determined in daily supplemented mice with the yeast (1 × 108 CFU) at days 10 and 15. The results indicate that C. benthicum LR192 has medium resistance to bile salts and low pH, can adhere to the intestine and did not cause cytotoxicity in splenocytes. Immune parameters and immune-related gene expression indicated immunomodulation at day 10 and 15, specially in leucocytes challenged with Escherichia coli. In conclusion, C. benthicum LR192 showed safe potential probiotic properties, but further studies should be performed to confirm it as a probiotic prospect for humans.
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Affiliation(s)
- Miriam Angulo
- Immunology and Vaccinology Group, Centro de Investigaciones Biológicas del Noroeste, SC., Instituto Politécnico Nacional, 195, Playa Palo de Santa Rita Sur, La Paz, B.C.S. C.P. 23096, México
| | - Kevyn Guerra
- Immunology and Vaccinology Group, Centro de Investigaciones Biológicas del Noroeste, SC., Instituto Politécnico Nacional, 195, Playa Palo de Santa Rita Sur, La Paz, B.C.S. C.P. 23096, México
| | - Abel Ramos
- Immunology and Vaccinology Group, Centro de Investigaciones Biológicas del Noroeste, SC., Instituto Politécnico Nacional, 195, Playa Palo de Santa Rita Sur, La Paz, B.C.S. C.P. 23096, México
| | - Elizabeth Monreal-Escalante
- Immunology and Vaccinology Group, Centro de Investigaciones Biológicas del Noroeste, SC., Instituto Politécnico Nacional, 195, Playa Palo de Santa Rita Sur, La Paz, B.C.S. C.P. 23096, México
| | - Elizabeth Martínez
- Immunology and Vaccinology Group, Centro de Investigaciones Biológicas del Noroeste, SC., Instituto Politécnico Nacional, 195, Playa Palo de Santa Rita Sur, La Paz, B.C.S. C.P. 23096, México
| | - Carlos Angulo
- Immunology and Vaccinology Group, Centro de Investigaciones Biológicas del Noroeste, SC., Instituto Politécnico Nacional, 195, Playa Palo de Santa Rita Sur, La Paz, B.C.S. C.P. 23096, México.
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25
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Roe AL, Boyte ME, Elkins CA, Goldman VS, Heimbach J, Madden E, Oketch-Rabah H, Sanders ME, Sirois J, Smith A. Considerations for determining safety of probiotics: A USP perspective. Regul Toxicol Pharmacol 2022; 136:105266. [PMID: 36206977 PMCID: PMC10292223 DOI: 10.1016/j.yrtph.2022.105266] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/15/2022] [Accepted: 09/26/2022] [Indexed: 11/06/2022]
Abstract
A history of safe use is a backbone of safety assessments for many current probiotic species, however, there is no global harmonization regarding requirements for establishing probiotic safety for use in foods and supplements. As probiotic manufacturers are increasingly seeking to use new strains, novel species, and next-generation probiotics, justification based on a significant history of use may be challenged. There are efforts underway by a variety of stakeholders, including the United States Pharmacopeia (USP), to develop best practices guidelines for assessing the quality and safety of probiotics. A current initiative of the USP seeks to provide expert advice specific to safety considerations for probiotics. Toward this goal, this review provides a helpful summary guide to global regulatory guidelines. We question the suitability of traditional animal toxicology studies designed for testing chemicals for relevance in assessing probiotic safety. This includes discussion of the use of excessive dose levels, the length of repeated dose toxicity studies needed, and the most suitable animal species used in toxicology studies. In addition, the importance of proper manufacturing practices with regard to final product safety are also included. Thus, an outline of essential parameters of a comprehensive safety assessment for a probiotic are provided.
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Affiliation(s)
- Amy L Roe
- The Procter & Gamble Company, Cincinnati, OH, USA.
| | | | - Chris A Elkins
- Division of Healthcare Quality Promotion, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Virginia S Goldman
- Department of Dietary Supplements and Herbal Medicines, Science Division, US Pharmacopeial Convention, Rockville, MD, USA
| | | | - Emily Madden
- Department of Dietary Supplements and Herbal Medicines, Science Division, US Pharmacopeial Convention, Rockville, MD, USA
| | - Hellen Oketch-Rabah
- Department of Dietary Supplements and Herbal Medicines, Science Division, US Pharmacopeial Convention, Rockville, MD, USA
| | - Mary Ellen Sanders
- International Scientific Association for Probiotics and Prebiotics, Sacramento, CA, USA
| | - Jay Sirois
- Consumer Health Products Association, Washington, DC, USA
| | - Amy Smith
- IFF Health & Biosciences, Wilmington, DE, USA
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26
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Dehghani S, Edalatian Dovom MR, Yavarmanesh M, Sankian M. In vitro Evaluation of Potential Probiotic Characteristics and Survival of Human and Foodborne Lactic Acid Bacteria (Lacticaseibacillus rhamnosus and Lactiplantibacillus plantarum) in Mice Gastrointestinal Tract. APPL BIOCHEM MICRO+ 2022. [DOI: 10.1134/s0003683822100052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
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27
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Characterisation of the probiotic potential of Lactiplantibacillus plantarum K16 and its ability to produce the postbiotic metabolite γ-aminobutyric acid. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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28
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Jiménez MC, Kowalski L, Souto RB, Alves IA, Viana MD, Aragón DM. New drugs against multidrug-resistant Gram-negative bacteria: a systematic review of patents. Future Microbiol 2022; 17:1393-1408. [PMID: 36169345 DOI: 10.2217/fmb-2022-0104] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background: Antimicrobial resistance has been a threat to human health ever since the accelerated consumption of antibiotics began. Materials & methods: The present systematic review was carried out using a free and specialized online database - Espacenet - and a survey for patents of antimicrobial agents from 2010 to 2021, selecting 33 recent patents that claimed compounds with antimicrobial activity against resistant strains of Gram-negative bacteria. Results: Some different and new approaches to the development of the patented antibacterial agents were identified, such as antimicrobial peptides, nanomaterials and natural extracts. Conclusion: Some alternatives to modern antibiotics with diminished effectiveness due to antimicrobial resistance were spotted. Nevertheless, many challenges remain to establish a robust and sustainable antibacterial R&D pipeline.
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Affiliation(s)
- María C Jiménez
- Departamento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá D.C., Colombia
| | - Layza Kowalski
- Department of Health Sciences, Faculty of Pharmacy, Universidade Regional Integrada do Alto Uruguai e das Missões, Santo Ângelo, RS, Brazil
| | - Ricardo B Souto
- Department of Medicines, Faculty of Pharmacy, Federal University of Bahia, Salvador, BA, Brazil
| | - Izabel A Alves
- Department of Medicines, Faculty of Pharmacy, Federal University of Bahia, Salvador, BA, Brazil.,Program of Post-graduation in Pharmaceutical Sciences, State University of Bahia, Salvador, BA, Brazil
| | - Max Dm Viana
- Department of Medicines, Faculty of Pharmacy, Federal University of Bahia, Salvador, BA, Brazil
| | - Diana M Aragón
- Departamento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia, Bogotá D.C., Colombia
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29
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Van Holm W, Verspecht T, Carvalho R, Bernaerts K, Boon N, Zayed N, Teughels W. Glycerol strengthens probiotic effect of Limosilactobacillus reuteri in oral biofilms: a synergistic synbiotic approach. Mol Oral Microbiol 2022; 37:266-275. [PMID: 36075698 DOI: 10.1111/omi.12386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 07/13/2022] [Accepted: 08/16/2022] [Indexed: 11/28/2022]
Abstract
Both in vitro and in vivo studies have shown that the probiotic Limosilactobacillus reuteri can improve oral health. L. reuteri species are known to produce the antimicrobial 'reuterin' from glycerol. In order to further increase its antimicrobial activity, this study evaluated the effect of the combined use of glycerol and Limosilactobacillus reuteri (ATCC PTA 5289) in view of using a synergistic synbiotic over a probiotic. An antagonistic agar growth and a multispecies biofilm model showed that the antimicrobial potential of the probiotic was significantly enhanced against periodontal pathobionts and anaerobic commensals when supplemented with glycerol. Synbiotic biofilms also showed a significant reduction in inflammatory expression of human oral keratinocytes (HOK-18A), but only when the keratinocytes were preincubated with the probiotic. Probiotic preincubation of keratinocytes or probiotic- and synbiotic treatment of biofilms alone were insufficient to significantly reduce inflammatory expression. Overall, this study shows that combining glycerol with the probiotic L. reuteri into a synergistic synbiotic can greatly improve the effectiveness of the latter. One sentence summary: The use of a synbiotic formulation of Limosilactobacillus reuteri with glycerol over the probiotic improves antimicrobial effects and reduced inflammatory response to oral biofilms. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Wannes Van Holm
- Department of Oral Health Sciences, University of Leuven (KU Leuven), Kapucijnenvoer 33, Leuven, 3000, Belgium.,Center for Microbial Ecology and Technology (CMET), Ghent University (UGent), Coupure links 653, Gent, 9000, Belgium
| | - Tim Verspecht
- Department of Oral Health Sciences, University of Leuven (KU Leuven), Kapucijnenvoer 33, Leuven, 3000, Belgium.,Center for Microbial Ecology and Technology (CMET), Ghent University (UGent), Coupure links 653, Gent, 9000, Belgium
| | - Rita Carvalho
- Department of Oral Health Sciences, University of Leuven (KU Leuven), Kapucijnenvoer 33, Leuven, 3000, Belgium
| | - Kristel Bernaerts
- Bio- and Chemical Systems Technology, Reactor Engineering and Safety, Department of Chemical Engineering, University of Leuven (KU Leuven), Leuven Chem&Tech, Celestijnenlaan 200F (bus 2424), Leuven, 3001, Belgium
| | - Nico Boon
- Center for Microbial Ecology and Technology (CMET), Ghent University (UGent), Coupure links 653, Gent, 9000, Belgium
| | - Naiera Zayed
- Department of Oral Health Sciences, University of Leuven (KU Leuven), Kapucijnenvoer 33, Leuven, 3000, Belgium.,Center for Microbial Ecology and Technology (CMET), Ghent University (UGent), Coupure links 653, Gent, 9000, Belgium.,Faculty of Pharmacy, Menoufia University, Egypt
| | - Wim Teughels
- Department of Oral Health Sciences, University of Leuven (KU Leuven), Kapucijnenvoer 33, Leuven, 3000, Belgium
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30
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Effect of Probiotics on Host-Microbiota in Bacterial Infections. Pathogens 2022; 11:pathogens11090986. [PMID: 36145418 PMCID: PMC9500725 DOI: 10.3390/pathogens11090986] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/18/2022] [Accepted: 08/25/2022] [Indexed: 11/17/2022] Open
Abstract
Diseases caused by bacteria cause millions of deaths every year. In addition, the problem of resistance to antibiotics is so serious that it threatens the achievements of modern medicine. This is a very important global problem as some bacteria can also develop persistence. Indeed, the persistence of pathogenic bacteria has evolved as a potent survival strategy to overcome host organisms’ defense mechanisms. Additionally, chronic or persistent infections may be caused by persisters which could facilitate antibiotic resistance. Probiotics are considered good bacteria. It has been described that the modulation of gut microbiota by probiotics could have a great potential to counteract the deleterious impact and/or regulate gut microbiota after bacterial infection. Probiotics might provide health benefits through the inhibition of pathogen growth or the replacement of pathogenic bacteria. Bearing in mind that current strategies to avoid bacterial persistence and prevent antibiotic resistance are not effective, other strategies need to be assessed. We have carried out a comprehensive review, which included the reported literature between 2016 and 2021, highlighting the clinical trials that reported the probiotics’ potential to regulate gut microbiota after bacterial infection and focusing in particular on the context of antibiotic resistance and persister cells.
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31
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El Hage R, El Hage J, Snini SP, Ammoun I, Touma J, Rachid R, Mathieu F, Sabatier JM, Abi Khattar Z, El Rayess Y. The Detection of Potential Native Probiotics Lactobacillus spp. against Salmonella Enteritidis, Salmonella Infantis and Salmonella Kentucky ST198 of Lebanese Chicken Origin. Antibiotics (Basel) 2022; 11:antibiotics11091147. [PMID: 36139927 PMCID: PMC9495222 DOI: 10.3390/antibiotics11091147] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/21/2022] [Accepted: 08/22/2022] [Indexed: 11/29/2022] Open
Abstract
Salmonella continues to be a major threat to public health, especially with respect to strains from a poultry origin. In recent years, an increasing trend of antimicrobial resistance (AMR) in Salmonella spp. was observed due to the misuse of antibiotics. Among the approaches advised for overcoming AMR, probiotics from the Lactobacillus genus have increasingly been considered for use as effective prophylactic and therapeutic agents belonging to the indigenous microbiota. In this study, we isolated lactobacilli from the ilea and ceca of hens and broilers in order to evaluate their potential probiotic properties. Four species were identified as Limosilactobacillusreuteri (n = 22, 45.8%), Ligilactobacillussalivarius (n = 20, 41.6%), Limosilactobacillus fermentum (n = 2, 4.2%) and Lactobacillus crispatus (n = 1, 2%), while three other isolates (n = 3, 6.25%) were non-typable. Eight isolates, including Ligilactobacillussalivarius (n = 4), Limosilactobacillusreuteri (n = 2), L. crispatus (n = 1) and Lactobacillus spp. (n = 1) were chosen on the basis of their cell surface hydrophobicity and auto/co-aggregation ability for further adhesion assays using the adenocarcinoma cell line Caco-2. The adhesion rate of these strains varied from 0.53 to 10.78%. Ligilactobacillussalivarius A30/i26 and 16/c6 and Limosilactobacillus reuteri 1/c24 showed the highest adhesion capacity, and were assessed for their ability to compete in and exclude the adhesion of Salmonella to the Caco-2 cells. Interestingly, Ligilactobacillussalivarius 16/c6 was shown to significantly exclude the adhesion of the three Salmonella serotypes, S. Enteritidis, S. Infantis and S. Kentucky ST 198, to Caco-2 cells. The results of the liquid co-culture assays revealed a complete inhibition of the growth of Salmonella after 24 h. Consequently, the indigenous Ligilactobacillussalivarius 16/c6 strain shows promising potential for use as a preventive probiotic added directly to the diet for the control of the colonization of Salmonella spp. in poultry.
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Affiliation(s)
- Rima El Hage
- Food Microbiology Laboratory, Lebanese Agricultural Research Institute (LARI), Fanar Station, Jdeideh El-Metn P.O. Box 901965, Lebanon
- Laboratoire de Génie Chimique, UMR 5503 CNRS/INPT/UPS, INP-ENSAT, 1, Université de Toulouse, Avenue de l’Agrobiopôle, 31326 Castanet-Tolosan, France
- Correspondence: (R.E.H.); (Z.A.K.)
| | - Jeanne El Hage
- Animal Health Laboratory, Lebanese Agricultural Research Institute (LARI), Fanar Station, Jdeideh El-Metn P.O. Box 901965, Lebanon
| | - Selma P. Snini
- Laboratoire de Génie Chimique, UMR 5503 CNRS/INPT/UPS, INP-ENSAT, 1, Université de Toulouse, Avenue de l’Agrobiopôle, 31326 Castanet-Tolosan, France
| | - Imad Ammoun
- Milk and Milk Products Laboratory, Lebanese Agricultural Research Institute (LARI), Fanar Station, Jdeideh El-Metn P.O. Box 901965, Lebanon
| | - Joseph Touma
- Food Microbiology Laboratory, Lebanese Agricultural Research Institute (LARI), Fanar Station, Jdeideh El-Metn P.O. Box 901965, Lebanon
| | - Rami Rachid
- Food Microbiology Laboratory, Lebanese Agricultural Research Institute (LARI), Fanar Station, Jdeideh El-Metn P.O. Box 901965, Lebanon
| | - Florence Mathieu
- Laboratoire de Génie Chimique, UMR 5503 CNRS/INPT/UPS, INP-ENSAT, 1, Université de Toulouse, Avenue de l’Agrobiopôle, 31326 Castanet-Tolosan, France
| | - Jean-Marc Sabatier
- CNRS UMR 7051, INP, Inst Neurophysiopathol, Aix-Marseille Université, 13385 Marseille, France
| | - Ziad Abi Khattar
- Microbiology/Tox-Ecotoxicology Team, Laboratory of Georesources, Geosciences and Environment (L2GE), Faculty of Sciences 2, Lebanese University, Campus Fanar, Jdeideh El-Metn P.O. Box 90656, Lebanon
- Correspondence: (R.E.H.); (Z.A.K.)
| | - Youssef El Rayess
- Faculty of Agricultural and Food Sciences, Holy Spirit University of Kaslik, Jounieh P.O. Box 446, Lebanon
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Jakab Á, Kovács F, Balla N, Tóth Z, Ragyák Á, Sajtos Z, Csillag K, Nagy-Köteles C, Nemes D, Bácskay I, Pócsi I, Majoros L, Kovács ÁT, Kovács R. Physiological and transcriptional profiling of surfactin exerted antifungal effect against Candida albicans. Biomed Pharmacother 2022; 152:113220. [PMID: 35671583 DOI: 10.1016/j.biopha.2022.113220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/19/2022] [Accepted: 05/30/2022] [Indexed: 11/28/2022] Open
Abstract
Given the risk of Candida albicans overgrowth in the gut, novel complementary therapies should be developed to reduce fungal dominancy. This study highlights the antifungal characteristics of a Bacillus subtilis-derived secondary metabolite, surfactin with high potential against C. albicans. Surfactin inhibited the growth of C. albicans following a 1-hour exposure, in addition to reduced adhesion and morphogenesis. Specifically, surfactin did not affect the level of reactive oxygen species but increased the level of reduced glutathione. Surprisingly, ethanol production was increased following 2 h of surfactin exposure. Surfactin treatment caused a significant reduction in intracellular iron, manganese and zinc content compared to control cells, whereas the level of copper was not affected. Alongside these physiological properties, surfactin also enhanced fluconazole efficacy. To gain detailed insights into the surfactin-related effects on C. albicans, genome-wide gene transcription analysis was performed. Surfactin treatment resulted in 1390 differentially expressed genes according to total transcriptome sequencing (RNA-Seq). Of these, 773 and 617 genes with at least a 1.5-fold increase or decrease in transcription, respectively, were selected for detailed investigation. Several genes involved in morphogenesis or related to metabolism (e.g., glycolysis, ethanol and fatty acid biosynthesis) were down-regulated. Moreover, surfactin decreased the expression of ERG1, ERG3, ERG9, ERG10 and ERG11 involved in ergosterol synthesis, whereas genes associated with ribosome biogenesis and iron metabolism and drug transport-related genes were up-regulated. Our data demonstrate that surfactin significantly influences the physiology and gene transcription of C. albicans, and could contribute to the development of a novel innovative complementary therapy.
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Affiliation(s)
- Ágnes Jakab
- Department of Molecular Biotechnology and Microbiology, Institute of Biotechnology, Faculty of Science and Technology, University of Debrecen, Debrecen, Hungary; Department of Medical Microbiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Fruzsina Kovács
- Department of Medical Microbiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary; Doctoral School of Pharmaceutical Sciences, University of Debrecen, Debrecen, Hungary
| | - Noémi Balla
- Department of Medical Microbiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary; Doctoral School of Pharmaceutical Sciences, University of Debrecen, Debrecen, Hungary
| | - Zoltán Tóth
- Department of Medical Microbiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary; Doctoral School of Pharmaceutical Sciences, University of Debrecen, Debrecen, Hungary
| | - Ágota Ragyák
- Department of Molecular Biotechnology and Microbiology, Institute of Biotechnology, Faculty of Science and Technology, University of Debrecen, Debrecen, Hungary; Department of Inorganic and Analytical Chemistry, Agilent Atomic Spectroscopy Partner Laboratory, University of Debrecen, Debrecen, Hungary
| | - Zsófi Sajtos
- Department of Inorganic and Analytical Chemistry, Agilent Atomic Spectroscopy Partner Laboratory, University of Debrecen, Debrecen, Hungary
| | - Kinga Csillag
- Department of Molecular Biotechnology and Microbiology, Institute of Biotechnology, Faculty of Science and Technology, University of Debrecen, Debrecen, Hungary
| | - Csaba Nagy-Köteles
- Department of Molecular Biotechnology and Microbiology, Institute of Biotechnology, Faculty of Science and Technology, University of Debrecen, Debrecen, Hungary
| | - Dániel Nemes
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
| | - Ildikó Bácskay
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
| | - István Pócsi
- Department of Molecular Biotechnology and Microbiology, Institute of Biotechnology, Faculty of Science and Technology, University of Debrecen, Debrecen, Hungary
| | - László Majoros
- Department of Medical Microbiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Ákos T Kovács
- Bacterial Interactions and Evolution Group, DTU Bioengineering, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Renátó Kovács
- Department of Medical Microbiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary; Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary.
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Sudan S, Li J. Dispersal of Pathogen-associated Multispecies Biofilm by Novel Probiotic Bacillus subtilis in a Contact Dependent Manner. J Appl Microbiol 2022; 133:2501-2515. [PMID: 35858688 DOI: 10.1111/jam.15721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 06/20/2022] [Accepted: 06/27/2022] [Indexed: 11/28/2022]
Abstract
AIMS Biofilms are involved in pathogenesis of various bacterial infections. Treatment of biofilm related bacterial infection remains a major challenge due to the reduced efficacy of antibiotics and associated antibiotic resistance. Given the increasing prevalence of Enterotoxic Escherichia. coli (ETEC), Salmonella Typhimurium (S. Typhimurium), and Methicillin-resistant Staphylococcus aureus (MRSA) related infections and associated drug resistance, it is imperative to develop alternative strategies for treatment and prevention. The current study investigated antibiofilm activity of a recently isolated Bacillus subtilis (B. subtilis-9) against these pathogens. METHODS AND RESULTS Crystal violet staining showed that treatment with B. subtilis-9 significantly reduced biofilm biomass of ETEC (60-80%), S. Typhimurium (68-73%) and MRSA (66-82%). In addition, B. subtilis-9 significantly reduced pre-formed biofilm biomass of ETEC (59%), S. Typhimurium (62%), MRSA (65%) and multispecies (58%). Fluorescence microscopy revealed that B. subtilis-9 treatment significantly reduced the thickness of biofilm and viability of the embedded bacteria. Additionally, B. subtilis-9 significantly reduced planktonic cell growth of ETEC (92%), S. Typhimurium (94%) and MRSA (93%). Interestingly, transwell assay showed that B. subtilis-9 exhibited antibiofilm properties in a cell-to-cell contact dependant manner and significantly reduced mRNA expression of biofilm related genes, bssS, luxS and ihfB in ETEC. CONCLUSION Novel B. subtilis-9 exhibits a strong inhibitory activity against ETEC, S. Typhimurium and MRSA biofilm formation and adhesion to abiotic surfaces. With further investigations, our study could bring forward a novel Bacillus based probiotic intervention strategy to combat pathogenic biofilms, in clinical and agricultural settings. SIGNIFICANCE AND IMPACT OF THE STUDY Probiotic bacteria propose a potential alternative in combating biofilm related infections, however, data on the efficacy and strain selection is limited. Data from this study is critical in further developing a Bacillus-based novel probiotic applications that may reduce the use of antibiotics in biofilm related infections in humans and animals.
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Affiliation(s)
- Sudhanshu Sudan
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada
| | - Julang Li
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada
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Afshari A, Hashemi M, Tavassoli M, Eraghi V, Noori SMA. Probiotic bacteria from 10 different traditional Iranian cheeses: Isolation, characterization, and investigation of probiotic potential. Food Sci Nutr 2022; 10:2009-2020. [PMID: 35702287 PMCID: PMC9179165 DOI: 10.1002/fsn3.2817] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 02/16/2022] [Accepted: 02/18/2022] [Indexed: 12/12/2022] Open
Abstract
In this study, 10 different traditional Iranian cheeses, which are still consumed by people in rural areas of Iran, were examined to isolate new strains of probiotic bacteria. Isolated bacteria were identified by 16s rRNA gene amplification and subjected to series of in vitro tests to find out their probiotic potential. A total of 2345 colonies were collected and 465 of them were confirmed as lactic acid bacteria (LAB), of which Lactiplantibacillus plantarum, Lactobacillus bulgaricus, and Lacticaseibacillus casei were the top three isolated bacteria. Among the different species of LAB isolated in this study, Lactip. plantarum was the most isolated species, and seven isolates had the significant criteria for being a probiotic strain than other isolates indicating the most adaptable properties of this species. Lactiplantibacillus plantarum was the most resistant bacteria in the bile resistance test and was also the most durable bacteria in gastrointestinal conditions, for example, acidic environment (pH = 2.5) and trypsin. In contrast, Lacticaseibacillus casei was the most susceptible bacterial strain. Lactobacillus rhamnosus showed the most antibacterial effect against Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. This study showed that probiotic strains isolated from local cheeses could be considered as suitable biopreservatives and used as specific starter cultures for the production of functional cheeses.
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Affiliation(s)
- Asma Afshari
- Department of Nutrition Faculty of Medicine Mashhad University of Medical Sciences Mashhad Iran
| | - Mohammad Hashemi
- Department of Nutrition Faculty of Medicine Mashhad University of Medical Sciences Mashhad Iran
| | - Milad Tavassoli
- Student Research Committee Department of Food Sciences and Technology Faculty of Nutrition and Food Sciences Tabriz University of Medical Sciences Tabriz Iran
| | - Vida Eraghi
- Department of Biotechnology Sabzevar Branch Islamic Azad University Sabzevar Iran
| | - Seyyed Mohammad Ali Noori
- Nutrition and Metabolic Diseases Research Center Clinical Sciences Research Institute Ahvaz Jundishapur University of Medical Sciences Ahvaz Iran.,Department of Nutrition School of Allied Medical Sciences Ahvaz Jundishapur University of Medical Sciences Ahvaz Iran
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Squarzanti DF, Zanetta P, Ormelli M, Manfredi M, Barberis E, Vanella VV, Amoruso A, Pane M, Azzimonti B. An animal derivative-free medium enhances Lactobacillus johnsonii LJO02 supernatant selective efficacy against the methicillin (oxacillin)-resistant Staphylococcus aureus virulence through key-metabolites. Sci Rep 2022; 12:8666. [PMID: 35606510 PMCID: PMC9126979 DOI: 10.1038/s41598-022-12718-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 05/09/2022] [Indexed: 12/15/2022] Open
Abstract
The spread of multidrug-resistant bacteria, such as the skin commensal Staphylococcus aureus, is a worldwide health challenge; new methods to counteract opportunistic pathogen growth and virulence are urgent. We compared the activity of Lacticaseibacillus rhamnosus LR06 (DSM 21981) and Lactobacillus johnsonii LJO02 (DSM 33828) cell-free supernatants (CFSs) produced in the conventional animal derivative-based MRS medium and an innovative animal derivative-free broth (TIL) versus the MDR S. aureus (ATCC 43300). CFS influence was assessed towards the viability, metabolic activity, and ability to form biofilm of the MDR strain through optical density, alamarBlue assay, and crystal violet staining; their content in short-chain fatty acids, lactic acid, and proteins was analysed via high-resolution mass spectrometry and gas chromatography. All CFSs reduce viable and metabolically active S. aureus, being TIL more efficient compared to MRS in stimulating lactic acid bacteria metabolism and decreasing S. aureus biofilm formation. Particularly, the CFS from LJO02 grown in TIL has the best efficacy, revealing a high amount of lactic acid and 59 peculiar proteins; its effectiveness is partially maintained upon trypsin and proteinase K treatments, but not by pepsin and pH basification. Therefore, antagonistic CFSs may represent a strategic prevention approach, with bacteriotherapeutic and bio-repair potential.
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Affiliation(s)
- Diletta Francesca Squarzanti
- Laboratory of Applied Microbiology, Department of Health Sciences (DiSS), Center for Translational Research on Allergic and Autoimmune Diseases (CAAD), School of Medicine, Università del Piemonte Orientale (UPO), Corso Trieste 15/A, 28100, Novara, Italy
| | - Paola Zanetta
- Laboratory of Applied Microbiology, Department of Health Sciences (DiSS), Center for Translational Research on Allergic and Autoimmune Diseases (CAAD), School of Medicine, Università del Piemonte Orientale (UPO), Corso Trieste 15/A, 28100, Novara, Italy
| | - Margherita Ormelli
- Laboratory of Applied Microbiology, Department of Health Sciences (DiSS), Center for Translational Research on Allergic and Autoimmune Diseases (CAAD), School of Medicine, Università del Piemonte Orientale (UPO), Corso Trieste 15/A, 28100, Novara, Italy
| | - Marcello Manfredi
- Laboratory of Biological Mass Spectrometry, Department of Translational Medicine (DiMeT), Center for Translational Research On Allergic and Autoimmune Diseases (CAAD), School of Medicine, Università del Piemonte Orientale (UPO), Corso Trieste 15/A, 28100, Novara, Italy
| | - Elettra Barberis
- Laboratory of Biological Mass Spectrometry, Department of Translational Medicine (DiMeT), Center for Translational Research On Allergic and Autoimmune Diseases (CAAD), School of Medicine, Università del Piemonte Orientale (UPO), Corso Trieste 15/A, 28100, Novara, Italy
| | - Virginia Vita Vanella
- Laboratory of Biological Mass Spectrometry, Department of Translational Medicine (DiMeT), Center for Translational Research On Allergic and Autoimmune Diseases (CAAD), School of Medicine, Università del Piemonte Orientale (UPO), Corso Trieste 15/A, 28100, Novara, Italy
| | - Angela Amoruso
- Probiotical Research S.R.L, Via Mattei 3, 28100, Novara, Italy
| | - Marco Pane
- Probiotical Research S.R.L, Via Mattei 3, 28100, Novara, Italy
| | - Barbara Azzimonti
- Laboratory of Applied Microbiology, Department of Health Sciences (DiSS), Center for Translational Research on Allergic and Autoimmune Diseases (CAAD), School of Medicine, Università del Piemonte Orientale (UPO), Corso Trieste 15/A, 28100, Novara, Italy.
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36
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Cruz N, Abernathy GA, Dichosa AEK, Kumar A. The Age of Next-Generation Therapeutic-Microbe Discovery: Exploiting Microbe-Microbe and Host-Microbe Interactions for Disease Prevention. Infect Immun 2022; 90:e0058921. [PMID: 35384688 PMCID: PMC9119102 DOI: 10.1128/iai.00589-21] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Humans are considered "superorganisms," harboring a diverse microbial collective that outnumbers human cells 10 to 1. Complex and gravely understudied host- and microbe-microbe interactions-the product of millions of years of host-microbe coevolution-govern the superorganism in almost every aspect of life functions and overall well-being. Abruptly disrupting these interactions via extrinsic factors has undesirable consequences for the host. On the other hand, supplementing commensal or beneficial microbes may mitigate perturbed interactions or enhance the interactive relationships that ultimately benefit all parties. Hence, immense efforts have focused on dissecting the innumerable host- and microbe-microbe relationships to characterize if a "positive" or "negative" interaction is at play and to exploit such behavior for broader implications. For example, microbiome research has worked to identify and isolate naturally antipathogenic microbes that may offer therapeutic potential either in a direct, one-on-one application or by leveraging its unique metabolic properties. However, the discovery and isolation of such desired therapeutic microbes from complex microbiota have proven challenging. Currently, there is no conventional technique to universally and functionally screen for these microbes. With this said, we first describe in this review the historical (probiotics) and current (fecal microbiota or defined consortia) perspectives on therapeutic microbes, present the discoveries of therapeutic microbes through exploiting microbe-microbe and host-microbe interactions, and detail our team's efforts in discovering therapeutic microbes via our novel microbiome screening platform. We conclude this minireview by briefly discussing challenges and possible solutions with therapeutic microbes' applications and paths ahead for discovery.
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Affiliation(s)
- Nathan Cruz
- B-10: Biosecurity and Public Health Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - George A. Abernathy
- B-10: Biosecurity and Public Health Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - Armand E. K. Dichosa
- B-10: Biosecurity and Public Health Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - Anand Kumar
- B-10: Biosecurity and Public Health Group, Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
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Chance JA, DeRouchey JM, Amachawadi RG, Ishengoma V, Nagaraja TG, Goodband RD, Woodworth JC, Tokach MD, Kang Q, Loughmiller JA, Hotze B, Gebhardt JT. Effects of yeast-based pre- and probiotics in lactation diets of sows on litter performance and antimicrobial resistance of fecal Escherichia coli of sows. J Anim Sci 2022; 100:6582257. [PMID: 35524734 PMCID: PMC9175290 DOI: 10.1093/jas/skac165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 05/03/2022] [Indexed: 11/13/2022] Open
Abstract
A total of 80 sows (Line 241; DNA, Columbus, NE) across three farrowing groups were used in a study to evaluate the effect of feeding live yeast and yeast extracts to lactating sows on sow and litter performance and antimicrobial resistance (AMR) patterns of sow fecal E. coli. Sows were blocked by farrowing group, BW, and parity on d 110 of gestation and allotted to 1 of 2 dietary treatments. Dietary treatments consisted of a standard lactation diet with or without yeast-based pre- and probiotics (0.10% Actisaf Sc 47 HR+ and 0.025% SafMannan; Phileo by Lesaffre, Milwaukee, WI). Diets were fed from d 110 of gestation until weaning (approximately d 19 post-farrow). A tendency (P = 0.073) was observed for increased feed intake through lactation when sows were fed a diet with yeast additives compared to the control diet. There was no evidence (P > 0.10) that treatment influenced any other sow or litter performance measurements. Fecal samples were collected upon entry into the farrowing house and at weaning from the first farrowing group (27 sows) to determine the resistance patterns of E. coli. E. coli was isolated from fecal samples and species confirmed by PCR detection of uidA and clpB genes. Microbroth dilution method was used to determine the minimal inhibitory concentrations (MIC) of E. coli isolates to 14 antimicrobials. Isolates were categorized as either susceptible, intermediate, or resistant based on Clinical and Laboratory Standards Institute guidelines. An interaction (P = 0.026) of diet × sampling day was observed for cefoxitin where fecal E. coli showed no evidence of treatment differences (P = 0.237) in MIC values at entry, but sows fed the control diet had lower (P = 0.035) MIC values at weaning compared to sows fed yeast additives. There were no diet main effects (P > 0.10) on the resistance of fecal E. coli. There was an increased (P < 0.02) towards resistance for 11 of the 14 antimicrobials over time. Fecal E. coli were resistant to tetracycline and ceftriaxone at weaning. Fecal E. coli were susceptible or intermediate in all sampling days to the remaining antimicrobials. In conclusion, feeding live yeast and yeast extracts tended to increase feed intake during lactation but did not influence either sow or litter performance measurements or the resistance of fecal E. coli during lactation except for cefoxitin, which had a higher MIC at the end of lactation when yeast additives were present in the diet.
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Affiliation(s)
- Jenna A Chance
- Department of Animal Sciences and Industry, Kanas State University, Manhattan KS 66506-0201 USA
| | - Joel M DeRouchey
- Department of Animal Sciences and Industry, Kanas State University, Manhattan KS 66506-0201 USA
| | - Raghavendra G Amachawadi
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan KS, 66506-0201 USA
| | - Victor Ishengoma
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan KS, 66506-0201 USA
| | - Tiruvoor G Nagaraja
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kanas State University, Manhattan KS, 66506-0201 USA
| | - Robert D Goodband
- Department of Animal Sciences and Industry, Kanas State University, Manhattan KS 66506-0201 USA
| | - Jason C Woodworth
- Department of Animal Sciences and Industry, Kanas State University, Manhattan KS 66506-0201 USA
| | - Mike D Tokach
- Department of Animal Sciences and Industry, Kanas State University, Manhattan KS 66506-0201 USA
| | - Qing Kang
- Department of Statistics, College of Arts and Sciences, Kansas State University, Kanas State University, Manhattan KS, 66506-0201 USA
| | | | - Brian Hotze
- Phileo by Lesaffre, Milwaukee WI, 53214-1552 USA
| | - Jordan T Gebhardt
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kanas State University, Manhattan KS, 66506-0201 USA
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Li Y, Wang Y, Liu Y, Li X, Feng L, Li K. Optimization of an economical medium composition for the coculture of Clostridium butyricum and Bacillus coagulans. AMB Express 2022; 12:19. [PMID: 35166947 PMCID: PMC8847521 DOI: 10.1186/s13568-022-01354-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 01/26/2022] [Indexed: 11/10/2022] Open
Abstract
Clostridium butyricum is a spore-forming probiotic which can promote the enhancement of beneficial bacteria and maintain intestinal microecological balance. However, it is difficult to improve the production level of C. butyricum by conventional fermentation process. In this study, a co-fermentation process of C. butyricum DL-1 and Bacillus coagulans ZC2-1 was established to improve the viable counts and spore yield of C. butyricum, and the formula of coculture medium was optimized by flask fermentation. The results showed that the optimum medium composition is 10 g/L bran, 15 g/L corn steep powder, 15 g/L peptone, 1 g/L K2HPO4 and 0.5 g/L MnSO4.Cultured stationarily in the optimal medium for 36 h, the number of viable bacteria of C. butyricum DL-1 reached 1.5 × 108 cfu/mL, Which was 375 times higher than that incubated in the initial medium. The sporulation rate reach 92.6%. The results revealed an economical and effective medium composition for the coculture of C. butyricum and B. coagulans, which achieved a 64.6% cost reduction. The co-fermentation process established in this study provides a new fermentation mode for the industrial production of other absolute anerobic bacteria.
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Progress in Alternative Strategies to Combat Antimicrobial Resistance: Focus on Antibiotics. Antibiotics (Basel) 2022; 11:antibiotics11020200. [PMID: 35203804 PMCID: PMC8868457 DOI: 10.3390/antibiotics11020200] [Citation(s) in RCA: 88] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 11/24/2022] Open
Abstract
Antibiotic resistance, and, in a broader perspective, antimicrobial resistance (AMR), continues to evolve and spread beyond all boundaries. As a result, infectious diseases have become more challenging or even impossible to treat, leading to an increase in morbidity and mortality. Despite the failure of conventional, traditional antimicrobial therapy, in the past two decades, no novel class of antibiotics has been introduced. Consequently, several novel alternative strategies to combat these (multi-) drug-resistant infectious microorganisms have been identified. The purpose of this review is to gather and consider the strategies that are being applied or proposed as potential alternatives to traditional antibiotics. These strategies include combination therapy, techniques that target the enzymes or proteins responsible for antimicrobial resistance, resistant bacteria, drug delivery systems, physicochemical methods, and unconventional techniques, including the CRISPR-Cas system. These alternative strategies may have the potential to change the treatment of multi-drug-resistant pathogens in human clinical settings.
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Kamarinou CS, Papadopoulou OS, Doulgeraki AI, Tassou CC, Galanis A, Chorianopoulos NG, Argyri AA. Mapping the Key Technological and Functional Characteristics of Indigenous Lactic Acid Bacteria Isolated from Greek Traditional Dairy Products. Microorganisms 2022; 10:246. [PMID: 35208701 PMCID: PMC8875946 DOI: 10.3390/microorganisms10020246] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 01/18/2022] [Accepted: 01/19/2022] [Indexed: 11/25/2022] Open
Abstract
The aim of the current study was to isolate indigenous lactic acid bacteria (LAB) from traditional Greek cheeses and assess their biochemical, technological, and functional characteristics, so as to develop novel cultures with multi-functional properties. Hence, 109 LAB isolates were recovered from traditional fresh cheeses and were evaluated in vitro for their gas production; proteolytic, lipolytic, and haemolytic activity; exopolysaccharide production (EPS); enzymatic potential; and ability to grow at 6.5% NaCl and at different pH, temperature, and anaerobic conditions. Consequently, 48 selected isolates were further evaluated for their survival under simulated gastrointestinal tract conditions, partial bile salt hydrolase activity, antibiotic resistance, and antimicrobial activity against pathogens. These isolates were also incorporated as co-cultures in yogurt production to examine their sensory characteristics and their survival in the product. Some prominent isolates that showed favorable technological and functional characteristics (good survival rates at low pH and bile salts, ability to produce β-galactosidase, and EPS) and attributed desirable sensory characteristics to yogurt were Lactococcuslactis (SRX2, SRX3, SRX5, and SMX16), Lactobacillus paracasei SRX10, and Lactiplantibacillusplantarum (FRX7, FB1), while Leuconostoc mesenteroides FMX3 and L. lactis SMX2 showed an anti-listerial activity in vitro. The results of the present study are promising for the production of novel dairy functional products with an enhanced quality and safety.
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Affiliation(s)
- Christina S. Kamarinou
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization—DIMITRA, 14123 Lycovrissi, Greece; (C.S.K.); (O.S.P.); (A.I.D.); (C.C.T.)
- Department of Molecular Biology and Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece;
| | - Olga S. Papadopoulou
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization—DIMITRA, 14123 Lycovrissi, Greece; (C.S.K.); (O.S.P.); (A.I.D.); (C.C.T.)
| | - Agapi I. Doulgeraki
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization—DIMITRA, 14123 Lycovrissi, Greece; (C.S.K.); (O.S.P.); (A.I.D.); (C.C.T.)
| | - Chrysoula C. Tassou
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization—DIMITRA, 14123 Lycovrissi, Greece; (C.S.K.); (O.S.P.); (A.I.D.); (C.C.T.)
| | - Alex Galanis
- Department of Molecular Biology and Genetics, Democritus University of Thrace, 68100 Alexandroupolis, Greece;
| | - Nikos G. Chorianopoulos
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization—DIMITRA, 14123 Lycovrissi, Greece; (C.S.K.); (O.S.P.); (A.I.D.); (C.C.T.)
| | - Anthoula A. Argyri
- Institute of Technology of Agricultural Products, Hellenic Agricultural Organization—DIMITRA, 14123 Lycovrissi, Greece; (C.S.K.); (O.S.P.); (A.I.D.); (C.C.T.)
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Knowledge, awareness, and socio-demographic assessment of probiotics, obesity and diabetes. INFORMATICS IN MEDICINE UNLOCKED 2022. [DOI: 10.1016/j.imu.2022.101101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Mazanko MS, Prazdnova EV, Kulikov MP, Maltseva TA, Rudoy DV, Chikindas ML. Antioxidant and antimutagenic properties of probiotic Lactobacilli determined using LUX-biosensors. Enzyme Microb Technol 2021; 155:109980. [PMID: 35032859 DOI: 10.1016/j.enzmictec.2021.109980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 12/16/2021] [Accepted: 12/23/2021] [Indexed: 11/17/2022]
Abstract
The initial screening of probiotic strains in vitro, carried out by different methods, may omit strains that are promising from the point of view of biotechnology or, conversely, mark as promising strains those that will lose activity when transferred in vivo. It is known that the release of metabolites by probiotic bacteria, in particular, lactobacilli, is highly dependent on the biochemical context. In this work, we modified the method that was previously successfully used for the selection of probiotics for poultry, based on their antioxidant and DNA-protective properties. A comparison was made of this activity on standard media and on an artificial intestinal medium that mimics the intestines of a bird. As a result, three Lactobacillus strains were selected, which not only exhibit antioxidant and DNA-protective properties but also do not lose these activities in an artificial intestinal medium.
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Affiliation(s)
- M S Mazanko
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia; Center for Agrobiotechnology, Don State Technical University, Rostov-on-Don, Russia
| | - E V Prazdnova
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia; Center for Agrobiotechnology, Don State Technical University, Rostov-on-Don, Russia.
| | - M P Kulikov
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia
| | - T A Maltseva
- Center for Agrobiotechnology, Don State Technical University, Rostov-on-Don, Russia
| | - D V Rudoy
- Center for Agrobiotechnology, Don State Technical University, Rostov-on-Don, Russia
| | - M L Chikindas
- Center for Agrobiotechnology, Don State Technical University, Rostov-on-Don, Russia; Health Promoting Naturals Laboratory, School of Environmental and Biological Sciences, Rutgers State University, New Brunswick, New Jersey, USA; I.M. Sechenov First Moscow State Medical University, Moscow, Russia
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Lu S, Liao X, Zhang L, Fang Y, Xiang M, Guo X. Nutrient L-Alanine-Induced Germination of Bacillus Improves Proliferation of Spores and Exerts Probiotic Effects in vitro and in vivo. Front Microbiol 2021; 12:796158. [PMID: 34925306 PMCID: PMC8675871 DOI: 10.3389/fmicb.2021.796158] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 11/10/2021] [Indexed: 11/13/2022] Open
Abstract
As alternatives to antibiotics in feed, probiotic Bacillus carries multiple advantages in animal production. Spores undergo strain-related germination in the gastrointestinal tract, but it is still unknown whether the probiotic function of the Bacillus depends on the germination of spores in vivo. In this study, based on 14 potential probiotic Bacillus strains from fermented food and feed, we detected the germination response of these Bacillus spores in relation to different germinating agents. The results showed the germination response was strain-specific and germinant-related, and nutrient germinant L-alanine significantly promoted the growth of strains with germination potential. Two strains of Bacillus subtilis, S-2 and 312, with or without a high spore germination response to L-alanine, were selected to study their morphological and genic differences induced by L-alanine through transmission electron microscopy and comparative transcriptomics analysis. Consequently, after L-alanine treatment, the gray phase was largely increased under microscopy, and the expression of the germination response genes was significantly up-regulated in the B. subtilis S-2 spores compared to the B. subtilis 312 spores (p < 0.05). The protective effect of L-alanine-induced spore germination of the two strains was comparatively investigated both in the IPEC-J2 cell model and a Sprague–Dawley (SD) rat model challenged by enterotoxigenic Escherichia coli K99. The result indicated that L-alanine helped B. subtilis S-2 spores, but not 312 spores, to decrease inflammatory factors (IL-6, IL-8, IL-1 β, TNF-α; p < 0.05) and promote the expression of occludin in IPEC-J2 cells. Besides, supplement with L-alanine-treated B. subtilis S-2 spores significantly improved the growth of the SD rats, alleviated histopathological GIT lesions, and improved the ratio of jejunal villus length to crypt depth in comparison to the B. subtilis S-2 spores alone (p < 0.05). Improved species diversity and abundance of fecal microbiota were only observed in the group with L-alanine-treated S-2 spores (p < 0.05). The study demonstrates L-alanine works well as a probiotic Bacillus adjuvant in improving intestinal health, and it also provides a solution for the practical and accurate regulation of their use as antibiotic alternatives in animal production.
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Affiliation(s)
- Shuang Lu
- College of Life Science, South-Central University for Nationalities, Wuhan, China
| | - Xianyin Liao
- College of Life Science, South-Central University for Nationalities, Wuhan, China
| | - Li Zhang
- College of Life Science, South-Central University for Nationalities, Wuhan, China
| | - Ying Fang
- College of Life Science, South-Central University for Nationalities, Wuhan, China
| | - Meixian Xiang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Xiaohua Guo
- College of Life Science, South-Central University for Nationalities, Wuhan, China
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Dubey AK, Podia M, Priyanka, Raut S, Singh S, Pinnaka AK, Khatri N. Insight Into the Beneficial Role of Lactiplantibacillus plantarum Supernatant Against Bacterial Infections, Oxidative Stress, and Wound Healing in A549 Cells and BALB/c Mice. Front Pharmacol 2021; 12:728614. [PMID: 34803678 PMCID: PMC8600115 DOI: 10.3389/fphar.2021.728614] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 09/28/2021] [Indexed: 12/29/2022] Open
Abstract
Lactiplantibacillus plantarum MTCC 2621 is a well-characterized probiotic strain and is reported to possess many health benefits. However, the wound healing potential of this probiotic is yet to be explored. Here, we have assessed the antibacterial, antioxidant, and wound healing activities of cell-free supernatant of Lactiplantibacillus plantarum MTCC 2621 (Lp2621). Lp2621 exhibited excellent antibacterial activity against the indicator bacteria in the agar well diffusion assay. Lp2621 did not show any hemolytic activity. The safety of Lp2621 gel was established using the skin irritation assay in BALB/c mice, and no dermal reactions were observed. The supernatant showed 60–100% protection of A549 cells against H2O2-induced stress. In the scratch assay, Lp2621 accelerated wound healing after 24 h of treatment. The percent wound healing was significantly higher in cells treated with Lp2621 at 18–24 h posttreatment. In an excision wound healing in mice, topical application of Lp2621 gel showed faster healing than the vehicle- and betadine-treated groups. Similar wound healing activity was observed in wounds infected with Staphylococcus aureus. Histological examination revealed better wound healing in Lp2621-treated mice. Topical treatment of the wounds with Lp2621 gel resulted in the upregulation of pro-inflammatory cytokine IL-6 in the early phase of wound healing and enhanced IL-10 expression in the later phase. These findings unveil a protective role of Lp2621 against bacterial infection, oxidative stress, and wound healing.
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Affiliation(s)
- Ashish Kumar Dubey
- IMTECH Centre for Animal Resources and Experimentation (iCARE), Council of Scientific and Industrial Research-Institute of Microbial Technology (CSIR-IMTECH), Chandigarh, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Mansi Podia
- IMTECH Centre for Animal Resources and Experimentation (iCARE), Council of Scientific and Industrial Research-Institute of Microbial Technology (CSIR-IMTECH), Chandigarh, India
| | - Priyanka
- IMTECH Centre for Animal Resources and Experimentation (iCARE), Council of Scientific and Industrial Research-Institute of Microbial Technology (CSIR-IMTECH), Chandigarh, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Sachin Raut
- IMTECH Centre for Animal Resources and Experimentation (iCARE), Council of Scientific and Industrial Research-Institute of Microbial Technology (CSIR-IMTECH), Chandigarh, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Sanpreet Singh
- Immunology Laboratory, Council of Scientific and Industrial Research-Institute of Microbial Technology (CSIR-IMTECH), Chandigarh, India
| | - Anil Kumar Pinnaka
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India.,MTCC-Microbial Type Culture Collection and Gene Bank, Council of Scientific and Industrial Research-Institute of Microbial Technology (CSIR-IMTECH), Chandigarh, India
| | - Neeraj Khatri
- IMTECH Centre for Animal Resources and Experimentation (iCARE), Council of Scientific and Industrial Research-Institute of Microbial Technology (CSIR-IMTECH), Chandigarh, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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45
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Chance JA, DeRouchey JM, Amachawadi RG, Ishengoma V, Nagaraja TG, Goodband RD, Woodworth JC, Tokach MD, Calderón HI, Kang Q, Loughmiller JA, Hotze B, Gebhardt JT. Live yeast and yeast extracts with and without pharmacological levels of zinc on nursery pig growth performance and antimicrobial susceptibilities of fecal Escherichia coli. J Anim Sci 2021; 99:6424407. [PMID: 34752618 DOI: 10.1093/jas/skab330] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 11/03/2021] [Indexed: 11/12/2022] Open
Abstract
A total of 360 weanling barrows (Line 200 ×400, DNA, Columbus NE; initially 5.6 ± 0.03 kg) were used in a 42-d study to evaluate yeast-based pre- and probiotics (Phileo by Lesaffre, Milwaukee, WI) in diets with or without pharmacological levels of Zn on growth performance and antimicrobial resistance (AMR) patterns of fecal Escherichia coli. Pens were assigned to 1 of 4 dietary treatments with 5 pigs per pen and 18 pens per treatment. Dietary treatments were arranged in a 2 × 2 factorial with main effects of yeast-based pre- and probiotics (none vs. 0.10% ActiSaf Sc 47 HR+, 0.05% SafMannan, and 0.05% NucleoSaf from d 0 to 7, then concentrations were lowered by 50% from d 7 to 21) and pharmacological levels of Zn (110 vs. 3,000 mg/kg from d 0 to 7, and 2,000 mg/kg from d 7 to 21 with added Zn provided by ZnO). All pigs were fed a common diet from d 21 to 42 post-weaning. There were no yeast ×Zn interactions or effects from yeast additives observed on any response criteria. From d 0 to 21, and 0 to 42, pigs fed pharmacological levels of Zn had increased (P < 0.001) ADG and ADFI. Fecal samples were collected on d 4, 21, and 42 from the same three pigs per pen for fecal dry matter (DM) and AMR patterns of E. coli. On d 4, pigs fed pharmacological levels of Zn had greater fecal DM (P = 0.043); however, no differences were observed on d 21 or 42. E. coli was isolated from fecal samples and the microbroth dilution method was used to determine the minimal inhibitory concentrations (MIC) of E. coli isolates to 14 different antimicrobials. Isolates were categorized as either susceptible, intermediate, or resistant based on Clinical and Laboratory Standards Institute (CLSI) guidelines. The addition of pharmacological levels of Zn had a tendency (P = 0.051) to increase the MIC values of ciprofloxacin; however, these MIC values were still well under the CLSI classified resistant breakpoint for Ciprofloxacin. There was no evidence for differences (P > 0.10) for yeast additives or Zn for AMR of fecal E. coli isolates to any of the remaining antibiotics. In conclusion, pharmacological levels of Zn improved ADG, ADFI, and all isolates were classified as susceptible to ciprofloxacin although the MIC of fecal E. coli tended to be increased. Thus, the short-term use of pharmacological levels of Zn did not increase antimicrobial resistance. There was no response observed from live yeast and yeast extracts for any of the growth, fecal DM, or AMR of fecal E. coli criteria.
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Affiliation(s)
- Jenna A Chance
- Department of Animal Sciences and Industry, Kanas State University, Manhattan KS 66506-0201 USA
| | - Joel M DeRouchey
- Department of Animal Sciences and Industry, Kanas State University, Manhattan KS 66506-0201 USA
| | - Raghavendra G Amachawadi
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan KS, 66506-0201 USA
| | - Victor Ishengoma
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan KS, 66506-0201 USA
| | - Tiruvoor G Nagaraja
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kanas State University, Manhattan KS, 66506-0201 USA
| | - Robert D Goodband
- Department of Animal Sciences and Industry, Kanas State University, Manhattan KS 66506-0201 USA
| | - Jason C Woodworth
- Department of Animal Sciences and Industry, Kanas State University, Manhattan KS 66506-0201 USA
| | - Mike D Tokach
- Department of Animal Sciences and Industry, Kanas State University, Manhattan KS 66506-0201 USA
| | - Hilda I Calderón
- Department of Statistics, College of Arts and Sciences, Kansas State University, Kanas State University, Manhattan KS, 66506-0201 USA
| | - Qing Kang
- Department of Statistics, College of Arts and Sciences, Kansas State University, Kanas State University, Manhattan KS, 66506-0201 USA
| | | | - Brian Hotze
- Phileo by Lesaffre, Milwaukee WI, 53214-1552 USA
| | - Jordan T Gebhardt
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kanas State University, Manhattan KS, 66506-0201 USA
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46
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Uddin TM, Chakraborty AJ, Khusro A, Zidan BRM, Mitra S, Emran TB, Dhama K, Ripon MKH, Gajdács M, Sahibzada MUK, Hossain MJ, Koirala N. Antibiotic resistance in microbes: History, mechanisms, therapeutic strategies and future prospects. J Infect Public Health 2021; 14:1750-1766. [PMID: 34756812 DOI: 10.1016/j.jiph.2021.10.020] [Citation(s) in RCA: 252] [Impact Index Per Article: 84.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/04/2021] [Accepted: 10/14/2021] [Indexed: 12/22/2022] Open
Abstract
Antibiotics have been used to cure bacterial infections for more than 70 years, and these low-molecular-weight bioactive agents have also been used for a variety of other medicinal applications. In the battle against microbes, antibiotics have certainly been a blessing to human civilization by saving millions of lives. Globally, infections caused by multidrug-resistant (MDR) bacteria are on the rise. Antibiotics are being used to combat diversified bacterial infections. Synthetic biology techniques, in combination with molecular, functional genomic, and metagenomic studies of bacteria, plants, and even marine invertebrates are aimed at unlocking the world's natural products faster than previous methods of antibiotic discovery. There are currently only few viable remedies, potential preventive techniques, and a limited number of antibiotics, thereby necessitating the discovery of innovative medicinal approaches and antimicrobial therapies. MDR is also facilitated by biofilms, which makes infection control more complex. In this review, we have spotlighted comprehensively various aspects of antibiotics viz. overview of antibiotics era, mode of actions of antibiotics, development and mechanisms of antibiotic resistance in bacteria, and future strategies to fight the emerging antimicrobial resistant threat.
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Affiliation(s)
- Tanvir Mahtab Uddin
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh.
| | - Arka Jyoti Chakraborty
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh.
| | - Ameer Khusro
- Research Department of Plant Biology and Biotechnology, Loyola College, Nungambakkam, Chennai, Tamil Nadu, India.
| | - Bm Redwan Matin Zidan
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh.
| | - Saikat Mitra
- Department of Pharmacy, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh.
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh.
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly 243122, Uttar Pradesh, India.
| | - Md Kamal Hossain Ripon
- Department of Pharmacy, Mawlana Bhashani Science and Technology University, Santosh, Tangail 1902, Bangladesh.
| | - Márió Gajdács
- Department of Oral Biology and Experimental Dental Research, Faculty of Dentistry, University of Szeged, 6720 Szeged, Hungary.
| | | | - Md Jamal Hossain
- Department of Pharmacy, State University of Bangladesh, 77 Satmasjid Road, Dhanmondi, Dhaka 1205, Bangladesh.
| | - Niranjan Koirala
- Department of Natural Products Research, Dr. Koirala Research Institute for Biotechnology and Biodiversity, Kathmandu 44600, Nepal.
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47
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Saliba L, Zoumpopoulou G, Anastasiou R, Hassoun G, Karayiannis Y, Sgouras D, Tsakalidou E, Deiana P, Montanari L, Mangia NP. Probiotic and safety assessment of Lactobacillus strains isolated from Lebanese Baladi goat milk. Int Dairy J 2021. [DOI: 10.1016/j.idairyj.2021.105092] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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48
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Search for Promising Strains of Probiotic Microbiota Isolated from Different Biotopes of Healthy Cats for Use in the Control of Surgical Infections. Pathogens 2021; 10:pathogens10060667. [PMID: 34071725 PMCID: PMC8228694 DOI: 10.3390/pathogens10060667] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 05/25/2021] [Accepted: 05/26/2021] [Indexed: 12/11/2022] Open
Abstract
Despite the introduction of modern methods of treatment, the creation of new generations of antibacterial agents, and the constant improvement of aseptic and antiseptic methods, the treatment of purulent–inflammatory processes remains one of the most complex and urgent problems in veterinary practice. The article presents the results of the isolation of indigenous microbiota from various biotopes of healthy cats, as well as the study of their biological marker properties for the selection of the most optimal strains in probiotic medicines for the control of surgical infections. It was demonstrated that isolated cultures of bifidobacteria and lactobacilli, which we isolated, revealed high sensitivity to antibiotics of the β-lactam group (excepting L. acidophilus No. 24, L. plantarum “Victoria” No. 22, L. rhamnosus No. 5, L. rhamnosus No. 20, and L. rhamnosus No. 26, which showed a significant variability in sensitivity to antibacterial drugs of this group, indicating the great potential of these microorganisms) and resistance to aminoglycosides, lincosamides, and fluoroquinolones (with the exception of gatifloxacin, which showed high efficiency in relation to all lactic acid microorganisms). The adhesive properties of the isolated lactobacteria and bifidobacteria were variable, even within the same species. It was found that the B. adolescentis No. 23 strain of the Bifidobacterium genus, as well as the L. plantarum No. 8, L. plantarum “Victoria” No. 22, L. rhamnosus No. 6, L. rhamnosus No. 26, L. acidophilus No. 12, and L. acidophilus No. 24 strains of the Lactobacillus genus had the highest adhesive activity. Thus, when conducting a detailed analysis of the biological marker properties of candidate cultures (determining their sensitivity to antimicrobial agents, studying the adhesive properties, and antagonistic activity in relation to causative agents of surgical infection in cats), it was found that the most promising are L. plantarum “Victoria” No. 22, L. rhamnosus No. 26, and L. acidophilus No. 24.
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49
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Sadeer NB, Mahomoodally MF. Antibiotic Potentiation of Natural Products: A Promising Target to Fight Pathogenic Bacteria. Curr Drug Targets 2021; 22:555-572. [PMID: 32972338 DOI: 10.2174/1389450121666200924113740] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/29/2020] [Accepted: 07/08/2020] [Indexed: 01/13/2023]
Abstract
Pathogenic microorganisms should be considered as the number one foe of human, as witnessed by recent outbreaks of coronavirus disease (COVID-19) and with bacteria no longer sensitive to existing antibiotics. The resistance of pathogenic bacteria and deaths attributable to bacterial infections is increasing exponentially. Bacteria used different mechanisms to counterattack to existing antibiotics, namely (i) enzymatic inhibition, (ii) penicillin-binding protein modification, (iii) porin mutations, (iv) efflux pumps and (v) molecular modifications of antibiotic targets. Developing new antibiotics would be time-consuming to address such a situation, thus one of the promising approaches is by potentiating existing antibiotics. Plants used synergism to naturally defend and protect themselves from microbes. Using the same strategy, several studies have shown that the combinations of natural products and antibiotics could effectively prolong the lifespan of existing antibiotics and minimize the impact and emergence of antibiotic resistance. Combining essential oils constituents, namely uvaol, ferruginol, farnesol and carvacrol, with antibiotics, have proved to be efficient efflux pump inhibitors. Plant-derived compounds such as gallic acid and tannic acid are effective potentiators of various antibiotics, including novobiocin, chlorobiocin, coumermycin, fusidic acid, and rifampicin, resulting in a 4-fold increase in the potencies of these antibiotics. Several lines of research, as discussed in this review, have demonstrated the effectiveness of natural products in potentiating existing antibiotics. For this reason, the search for more efficient combinations should be an ongoing process with the aim to extend the life of the ones that we have and may preserve the life for the ones that are yet to come.
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Affiliation(s)
- Nabeelah Bibi Sadeer
- Department of Health Sciences, Faculty of Science, University of Mauritius, 230Reduit, Mauritius
| | - Mohamad Fawzi Mahomoodally
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam.,Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
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50
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Li YF, Gong XL, Chen SX, Wang K, Jiang YH. Deviations in the gut microbiota of neonates affected by maternal group B Streptococcus colonization. BMC Microbiol 2021; 21:140. [PMID: 33952201 PMCID: PMC8097833 DOI: 10.1186/s12866-021-02204-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 04/23/2021] [Indexed: 01/30/2023] Open
Abstract
Background Group B Streptococcus (GBS) infection is the leading cause of septicemia, meningitis, and pneumonia in neonates. Aberrant gut colonization in early life may predispose children to various diseases in adulthood. However, the associations between gut microbial changes and GBS colonization is still unclear. Results The composition and diversity of meconium microbiota in GBS group were similar to that of healthy controls. However, we identified several specific taxa that were differentially abundant between the two groups (linear discriminant analysis (LDA) effect size (LEfSe): p < 0.05, LDA > 2.0). Particularly, the relative abundance of Lactobacillus paracasei was significantly reduced, indicating a role in GBS colonization. Conclusions Our study presented a series of bacterial species colonized by GBS, thus providing novel evidence in support of initial intestinal microbiota dysbiosis in the neonates with mother’s GBS colonization. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-021-02204-3.
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Affiliation(s)
- Yue-Feng Li
- Department of Pediatrics, Shenzhen Luohu Maternity and Child Health Hospital, Shenzhen, 518019, China
| | - Xue-Lei Gong
- Department of Pediatrics, Shenzhen Luohu Maternity and Child Health Hospital, Shenzhen, 518019, China
| | - Su-Xiang Chen
- Department of Pediatrics, Shenzhen Luohu Maternity and Child Health Hospital, Shenzhen, 518019, China
| | - Kejian Wang
- The Third Affiliated Hospital of Shandong First Medical University Affiliated Hospital of Shandong Academy of Medical Sciences, Jinan, 250031, China.
| | - Yan-Hua Jiang
- Departments of Obstetrics and Gynecology, Shenzhen Luohu Maternity and Child Health Hospital, No.2013, Taibai Road, Luohu District, Shenzhen, 518019, China.
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