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Selvaraj K, Venkatesan LS, Ganapathy D, Sathishkumar P. Treatment of dental biofilm-forming bacterium Streptococcus mutans using tannic acid-mediated gold nanoparticles. Microb Pathog 2024; 189:106568. [PMID: 38354988 DOI: 10.1016/j.micpath.2024.106568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/16/2024]
Abstract
Biosynthesized gold nanoparticles (AuNPs) are highly attracted as a biocompatible nanodrug to treat various diseased conditions in humans. In this study, phytochemical tannic acid-mediated AuNPs (TA-AuNPs) are successfully synthesized and tested for antibacterial and antibiofilm activity against dental biofilm-forming Streptococcus mutans biofilm. The synthesized TA-AuNPs are appeared as spherical in shape with an average size of 19 nm. The antibacterial potential of TA-AuNPs was evaluated using ZOI and MIC measurements; while, antibiofilm efficacy was measured by checking the eradication of preformed biofilm on the tooth model. The ZOI and MIC values for TA-AuNPs are 25 mm in diameter and 4 μg/mL, respectively. The MTT assay, CLSM, and SEM results demonstrate that the preformed S. mutans biofilm is completely eradicated at 4xMIC (16 μg/mL) of TA-AuNPs. Finally, the present study reveals that the synthesized TA-AuNPs might be a great therapeutic drug to treat dental biofilm-forming bacterium S. mutans.
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Affiliation(s)
- Kaviya Selvaraj
- Green Lab, Department of Prosthodontics, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, 600 077, Tamil Nadu, India
| | - Lekha Sree Venkatesan
- Green Lab, Department of Prosthodontics, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, 600 077, Tamil Nadu, India
| | - Dhanraj Ganapathy
- Green Lab, Department of Prosthodontics, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, 600 077, Tamil Nadu, India
| | - Palanivel Sathishkumar
- Green Lab, Department of Prosthodontics, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, 600 077, Tamil Nadu, India.
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Fusco V, Chieffi D, Fanelli F, Montemurro M, Rizzello CG, Franz CMAP. The Weissella and Periweissella genera: up-to-date taxonomy, ecology, safety, biotechnological, and probiotic potential. Front Microbiol 2023; 14:1289937. [PMID: 38169702 PMCID: PMC10758620 DOI: 10.3389/fmicb.2023.1289937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 11/14/2023] [Indexed: 01/05/2024] Open
Abstract
Bacteria belonging to the genera Weissella and Periweissella are lactic acid bacteria, which emerged in the last decades for their probiotic and biotechnological potential. In 2015, an article reviewing the scientific literature till that date on the taxonomy, ecology, and biotechnological potential of the Weissella genus was published. Since then, the number of studies on this genus has increased enormously, several novel species have been discovered, the taxonomy of the genus underwent changes and new insights into the safety, and biotechnological and probiotic potential of weissellas and periweissellas could be gained. Here, we provide an updated overview (from 2015 until today) of the taxonomy, ecology, safety, biotechnological, and probiotic potential of these lactic acid bacteria.
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Affiliation(s)
- Vincenzina Fusco
- National Research Council, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy
| | - Daniele Chieffi
- National Research Council, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy
| | - Francesca Fanelli
- National Research Council, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy
| | - Marco Montemurro
- National Research Council, Institute of Sciences of Food Production (CNR-ISPA), Bari, Italy
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Ford T, McAdams ZL, Townsend KS, Martin LM, Johnson PJ, Ericsson AC. Effect of Sugar Beet Pulp on the Composition and Predicted Function of Equine Fecal Microbiota. Biology (Basel) 2023; 12:1254. [PMID: 37759653 PMCID: PMC10525916 DOI: 10.3390/biology12091254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/13/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023]
Abstract
The purpose of this study is to determine the effect of the partial replacement of dietary hay with sugar beet pulp (SBP) on the composition and predicted function of the fecal microbiota of healthy adult horses. Fecal samples were collected daily for 12 days from six adult horses after removal from pasture, including a five-day acclimation period, and a seven-day period following the introduction of SBP into their diet, and compared to six untreated horses over a comparable period. Fecal DNA was subjected to 16S rRNA amplicon sequencing and a longitudinal analysis was performed comparing the composition and predicted function. While no significant treatment-associated changes in the richness, alpha diversity, or beta diversity were detected, random forest regression identified several high-importance taxonomic features associated with change over time in horses receiving SBP. A similar analysis of the predicted functional pathways identified several high-importance pathways, including those involved in the production of L-methionine and butyrate. These data suggest that feeding SBP to healthy adult horses acutely increases the relative abundance of several Gram-positive taxa, including Cellulosilyticum sp., Moryella sp., and Weissella sp., and mitigates the predicted functional changes associated with removal from pasture. Large-scale studies are needed to assess the protective effect of SBP on the incidence of the gastrointestinal conditions of horses.
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Affiliation(s)
- Tamara Ford
- College of Veterinary Medicine (CVM), University of Missouri (MU), Columbia, MO 65211, USA
| | - Zachary L. McAdams
- Molecular Pathogenesis and Therapeutics (MPT) Program, University of Missouri (MU), Columbia, MO 65201, USA
| | - Kile S. Townsend
- College of Veterinary Medicine (CVM), University of Missouri (MU), Columbia, MO 65211, USA
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine (CVM), University of Missouri (MU), Columbia, MO 65211, USA
| | - Lynn M. Martin
- College of Veterinary Medicine (CVM), University of Missouri (MU), Columbia, MO 65211, USA
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine (CVM), University of Missouri (MU), Columbia, MO 65211, USA
| | - Philip J. Johnson
- College of Veterinary Medicine (CVM), University of Missouri (MU), Columbia, MO 65211, USA
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine (CVM), University of Missouri (MU), Columbia, MO 65211, USA
| | - Aaron C. Ericsson
- College of Veterinary Medicine (CVM), University of Missouri (MU), Columbia, MO 65211, USA
- Molecular Pathogenesis and Therapeutics (MPT) Program, University of Missouri (MU), Columbia, MO 65201, USA
- MU Metagenomics Center, Department of Veterinary Pathobiology, College of Veterinary Medicine (CVM), University of Missouri (MU), Columbia, MO 65201, USA
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