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Chen D, Wang J, Li N, Luo X, Yu H, Fu H, Chen Z, Yu B, Jin Y, Kopchuk DS. Application of Bimetallic Hydroxide/Graphene Composites in Wastewater Treatment. Molecules 2024; 29:3157. [PMID: 38999111 PMCID: PMC11243626 DOI: 10.3390/molecules29133157] [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: 04/26/2024] [Revised: 06/21/2024] [Accepted: 06/29/2024] [Indexed: 07/14/2024] Open
Abstract
The increasing discharge of antibiotic wastewater leads to increasing water pollution. Most of these antibiotic wastewaters are persistent, strongly carcinogenic, easy to bioaccumulate, and have other similar characteristics, seriously jeopardizing human health and the ecological environment. As a commonly used wastewater treatment technology, non-homogeneous electro-Fenton technology avoids the hazards of H2O2 storage and transportation as well as the loss of desorption and reabsorption. It also facilitates electron transfer on the electrodes and the reduction of Fe3+ on the catalysts, thereby reducing sludge production. However, the low selectivity and poor activity of electro-synthesized H2O2, along with the low concentration of its products, combined with the insufficient activity of electrically activated H2O2, results in a low ∙OH yield. To address the above problems, composites of layered bimetallic hydroxides and carbon materials were designed and prepared in this paper to enhance the performance of electro-synthesized H2O2 and non-homogeneous electro-Fenton by changing the composite mode of the materials. Three composites, NiFe layered double hydroxides (LDHs)/reduced graphene oxide (rGO), NiMn LDHs/rGO, and NiMnFe LDHs/rGO, were constructed by the electrostatic self-assembly of exfoliated LDHs with few-layer graphene. The LDHs/rGO was loaded on carbon mats to construct the electro-Fenton cathode materials, and the non-homogeneous electro-Fenton oxidative degradation of organic pollutants was realized by the in situ electrocatalytic reduction of O2 to ∙OH. Meanwhile, the effects of solution pH, applied voltage, and initial concentration on the performance of non-homogeneous electro-Fenton were investigated with ceftazidime as the target pollutant, which proved that the cathode materials have an excellent electro-Fenton degradation effect.
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Affiliation(s)
- Dan Chen
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
- Taizhou Biomedical and Chemistry Industry Institute, Taizhou 318000, China
| | - Jiao Wang
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
| | - Nana Li
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
| | - Xiaoqin Luo
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
| | - Hua Yu
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
- Taizhou Biomedical and Chemistry Industry Institute, Taizhou 318000, China
| | - Haichang Fu
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
- Taizhou Biomedical and Chemistry Industry Institute, Taizhou 318000, China
| | - Zhangxin Chen
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
- Taizhou Biomedical and Chemistry Industry Institute, Taizhou 318000, China
| | - Binbin Yu
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
- Taizhou Biomedical and Chemistry Industry Institute, Taizhou 318000, China
| | - Yanxian Jin
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
| | - Dmitry S Kopchuk
- Chemical Engineering Institute, Ural Federal University, 19 Mira Str., 620002 Ekaterinburg, Russia
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2
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Goldenberg JZ, Wright TJ, Batson RD, Wexler RS, McGovern KA, Venugopal NK, Ward WW, Randolph KM, Urban RJ, Pyles RB, Sheffield-Moore M. What is the association between the microbiome and cognition? An umbrella review protocol. BMJ Open 2024; 14:e077873. [PMID: 38890133 PMCID: PMC11191802 DOI: 10.1136/bmjopen-2023-077873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 06/03/2024] [Indexed: 06/20/2024] Open
Abstract
INTRODUCTION Cognitive impairment is reported in a variety of clinical conditions including Alzheimer's disease, Parkinson's and 'long-COVID'. Interestingly, many of these clinical conditions are also associated with microbial dysbiosis. This comanifestation of cognitive and microbiome findings in seemingly unrelated maladies suggests that they could share a common mechanism and potentially presents a treatment target. Although a rapidly growing body of literature has documented this comorbid presentation within specific conditions, an overview highlighting potential parallels across healthy and clinical populations is lacking. The objective of this umbrella review, therefore, is to summarise and synthesise the findings of these systematic reviews. METHODS AND ANALYSIS On 2 April 2023, we searched MEDLINE (Pubmed), Embase (Ovid), the Web of Science (Core Collection), the Cochrane Library of Systematic Reviews and Epistemonikos as well as grey literature sources, for systematic reviews on clinical conditions and interventions where cognitive and microbiome outcomes were coreported. An updated search will be conducted before completion of the project if the search-to-publication date is >1 year old. Screening, data abstraction and quality assessment (AMSTAR 2, A MeaSurement Tool to Assess systematic Reviews) will be conducted independently and in duplicate, with disagreements resolved by consensus. Evidence certainty statements for each review's conclusions (eg, Grading of Recommendations Assessment, Development and Evaluation (GRADE)) will be extracted or constructed de novo. A narrative synthesis will be conducted and delineated by the review question. Primary study overlap will be visualised using a citation matrix as well as calculated using the corrected covered area method. ETHICS AND DISSEMINATION No participant-identifying information will be used in this review. No ethics approval was required due to our study methodology. Our findings will be presented at national and international conferences and disseminated via social media and press releases. We will recruit at least one person living with cognitive impairment to collaborate on writing the plain language summary for the review. PROSPERO REGISTRATION NUMBER CRD42023412903.
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Affiliation(s)
- Joshua Z Goldenberg
- Helfgott Research Institute, National University of Natural Medicine, Portland, Oregon, USA
- Endocrine and Brain Injury Research Alliance, Friday Harbor, Washington, USA
| | - Traver J Wright
- The University of Texas Medical Branch at Galveston School of Medicine, Galveston, Texas, USA
| | - Richard D Batson
- Helfgott Research Institute, National University of Natural Medicine, Portland, Oregon, USA
- Endocrine and Brain Injury Research Alliance, Friday Harbor, Washington, USA
| | - Ryan S Wexler
- Helfgott Research Institute, National University of Natural Medicine, Portland, Oregon, USA
| | - Kristen A McGovern
- The University of Texas Medical Branch at Galveston School of Medicine, Galveston, Texas, USA
| | - Navneet K Venugopal
- The University of Texas Medical Branch at Galveston School of Medicine, Galveston, Texas, USA
| | - Weston W Ward
- The University of Texas Medical Branch at Galveston School of Medicine, Galveston, Texas, USA
| | - Kathleen M Randolph
- The University of Texas Medical Branch at Galveston School of Medicine, Galveston, Texas, USA
| | - Randall J Urban
- The University of Texas Medical Branch at Galveston School of Medicine, Galveston, Texas, USA
| | - Richard B Pyles
- The University of Texas Medical Branch at Galveston School of Medicine, Galveston, Texas, USA
| | - Melinda Sheffield-Moore
- The University of Texas Medical Branch at Galveston School of Medicine, Galveston, Texas, USA
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Bullen NP, Johnson CN, Andersen SE, Arya G, Marotta SR, Lee YJ, Weigele PR, Whitney JC, Duerkop BA. Evolution of a small phage protein overcomes antiphage defense in Enterococcus faecalis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.11.16.567456. [PMID: 38014348 PMCID: PMC10680825 DOI: 10.1101/2023.11.16.567456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
The prevalence of multidrug resistant (MDR) bacterial infections continues to rise as the development of new antibiotics needed to combat these infections remains stagnant. MDR enterococci, which are a common cause of hospital-acquired infections, are emerging as one of the major contributors to this crisis. A potential therapeutic approach for combating MDR enterococci is bacteriophage (phage) therapy, which entails the use of lytic viruses to infect and kill pathogenic bacteria. While phages that lyse some strains of MDR enterococci have been identified, other strains display high levels of phage resistance and the mechanisms underlying this resistance are poorly defined. Here, we use a CRISPR interference (CRISPRi) screen to identify a genetic locus found on a mobilizable plasmid from vancomycin-resistant Enterococcus faecalis involved in phage resistance. This locus encodes a putative serine recombinase followed by a Type IV restriction enzyme (TIV-RE) and we show that this enzyme is sufficient to restrict the replication of lytic phage phi47 in E. faecalis. We further find that phi47 can evolve to overcome restriction by acquiring a missense mutation in a novel TIV-RE inhibitor protein encoded by many enterococcal phages. We show that this inhibitor, which we have named type IV restriction inhibiting factor A (tifA), directly binds to and inactivates diverse TIV-REs. Overall, our findings significantly advance our understanding of phage defense in drug-resistant E. faecalis and provide mechanistic insight into how phages can evolve to overcome antiphage defense systems.
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Affiliation(s)
- Nathan P. Bullen
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada, L8S 4L8
- Michael DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
| | - Cydney N. Johnson
- Department of Immunology and Microbiology, University of Colorado School – Anschutz Medical Campus, School of Medicine, Aurora, CO, USA, 80045
| | - Shelby E. Andersen
- Department of Immunology and Microbiology, University of Colorado School – Anschutz Medical Campus, School of Medicine, Aurora, CO, USA, 80045
| | - Garima Arya
- Department of Immunology and Microbiology, University of Colorado School – Anschutz Medical Campus, School of Medicine, Aurora, CO, USA, 80045
| | - Sonia R. Marotta
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada, L8S 4L8
- Michael DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
| | - Yan-Jiun Lee
- Research Department, New England Biolabs, Ipswich, MA, USA, 01938
| | - Peter R. Weigele
- Research Department, New England Biolabs, Ipswich, MA, USA, 01938
| | - John C. Whitney
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada, L8S 4L8
- Michael DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, ON, Canada
| | - Breck A. Duerkop
- Department of Immunology and Microbiology, University of Colorado School – Anschutz Medical Campus, School of Medicine, Aurora, CO, USA, 80045
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Yang H, Lin Y, Ma Y, Li J, Li J, Huo Z, Yang P, Zhang C. Screening Probiotics for Anti- Helicobacter pylori and Investigating the Effect of Probiotics on Patients with Helicobacter pylori Infection. Foods 2024; 13:1851. [PMID: 38928794 PMCID: PMC11202727 DOI: 10.3390/foods13121851] [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: 04/25/2024] [Revised: 05/21/2024] [Accepted: 05/29/2024] [Indexed: 06/28/2024] Open
Abstract
Probiotics are natural microbial agents with beneficial properties such as bacteriostatic and anti-infective properties. Lactobacillus plantarum Q21, Q25 and QA85, were isolated from the Chinese specialty fermented food "Jiangshui" and proved to be highly resistant to Helicobacter pylori (p < 0.0001). In vitro results showed that Q21, Q25 and QA85 strongly inhibited H. pylori and could specifically co-aggregate H. pylori in vitro (more than 56%). Strains have the potential to adhere to cells and hinder H. pylori colonization (p < 0.0001). To assess the anti-H. pylori efficacy of strains in vivo, volunteers were recruited and a self-controlled study of probiotic intervention was conducted. Compared to pre-probiotics, volunteers who took Q21, Q25 and QA85 for 1 month showed significant improvement in discomfort, a significant reduction in GSRS scores (p < 0.05), and modulation of inflammatory response (p < 0.05). Q21, Q25 and QA85 resulted in a decreasing trend of H. pylori load in volunteers (454.30 ± 327.00 vs. 328.35 ± 237.19, p = 0.06). However, the strains were not significantly effective in modulating the imbalance of the gut microbiota caused by H. pylori infection. In addition, strains affect metabolic pathways by increasing the levels of O-Phosphoethanolamine and other related metabolites, which may ameliorate associated symptoms. Therefore, Lactobacillus plantarum Q21, Q25 and QA85 can be regarded as a candidate probiotic preparation that exerts direct or indirect anti-H. pylori effects by inhibiting H. pylori activity and colonization, reducing inflammation and discomfort, maintaining homeostasis in the internal environment, affecting the metabolic pathways and repairing the body barrier. They can play a role in relieving H. pylori infection.
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Affiliation(s)
- Hui Yang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Yang Lin
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Lanzhou University, Lanzhou 730000, China
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, Lanzhou 730000, China
| | - Yuchan Ma
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Jiaru Li
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Junxiang Li
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Lanzhou University, Lanzhou 730000, China
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, Lanzhou 730000, China
| | - Zeqi Huo
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Lanzhou University, Lanzhou 730000, China
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, Lanzhou 730000, China
| | - Pingrong Yang
- School of Pharmacy, Lanzhou University, Lanzhou 730000, China
| | - Chunjiang Zhang
- School of Life Sciences, Lanzhou University, Lanzhou 730000, China
- Key Laboratory of Cell Activities and Stress Adaptations, Ministry of Education, Lanzhou University, Lanzhou 730000, China
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, Lanzhou University, Lanzhou 730000, China
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5
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Shi W, Chen Z, Shi L, Jiang S, Zhou J, Gu X, Lei X, Xiao T, Zhu Y, Qian A, Zhou W, Lee SK, Du L, Yang J, Ma X, Hu L. Early Antibiotic Exposure and Bronchopulmonary Dysplasia in Very Preterm Infants at Low Risk of Early-Onset Sepsis. JAMA Netw Open 2024; 7:e2418831. [PMID: 38935376 PMCID: PMC11211957 DOI: 10.1001/jamanetworkopen.2024.18831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 04/24/2024] [Indexed: 06/28/2024] Open
Abstract
Importance The overutilization of antibiotics in very preterm infants (VPIs) at low risk of early-onset sepsis (EOS) is associated with increased mortality and morbidities. Nevertheless, the association of early antibiotic exposure with bronchopulmonary dysplasia (BPD) remains equivocal. Objective To evaluate the association of varying durations and types of early antibiotic exposure with the incidence of BPD in VPIs at low risk of EOS. Design, Setting, and Participants This national multicenter cohort study utilized data from the Chinese Neonatal Network (CHNN) which prospectively collected data from January 1, 2019, to December 31, 2021. VPIs less than 32 weeks' gestational age or with birth weight less than 1500 g at low risk of EOS, defined as those born via cesarean delivery, without labor or rupture of membranes, and no clinical evidence of chorioamnionitis, were included. Data analysis was conducted from October 2022 to December 2023. Exposure Early antibiotic exposure was defined as the total number of calendar days antibiotics were administered within the first week of life, which were further categorized as no exposure, 1 to 4 days of exposure, and 5 to 7 days of exposure. Main Outcomes and Measures The primary outcome was the composite of moderate to severe BPD or mortality at 36 weeks' post menstrual age (PMA). Logistic regression was employed to assess factors associated with BPD or mortality using 2 different models. Results Of the 27 176 VPIs included in the CHNN during the study period (14 874 male [54.7%] and 12 302 female [45.3%]), 6510 (23.9%; 3373 male [51.8%] and 3137 female [48.2.%]) were categorized as low risk for EOS. Among them, 1324 (20.3%) had no antibiotic exposure, 1134 (17.4%) received 1 to 4 days of antibiotics treatment, and 4052 (62.2%) received 5 to 7 days of antibiotics treatment. Of the 5186 VPIs who received antibiotics, 4098 (79.0%) received broad-spectrum antibiotics, 888 (17.1%) received narrow-spectrum antibiotics, and 200 (3.9%) received antifungals or other antibiotics. Prolonged exposure (5-7 days) was associated with increased likelihood of moderate to severe BPD or death (adjusted odds ratio [aOR], 1.23; 95% CI, 1.01-1.50). The use of broad-spectrum antibiotics (1-7 days) was also associated with a higher risk of moderate to severe BPD or death (aOR, 1.27; 95% CI, 1.04-1.55). Conclusions and Relevance In this cohort study of VPIs at low risk for EOS, exposure to prolonged or broad-spectrum antibiotics was associated with increased risk of developing moderate to severe BPD or mortality. These findings suggest that VPIs exposed to prolonged or broad-spectrum antibiotics early in life should be monitored for adverse outcomes.
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Affiliation(s)
- Wei Shi
- Neonatal Intensive Care Unit, Children’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
- National Clinical Research Center for Child Health, Hangzhou, China
| | - Zheng Chen
- Neonatal Intensive Care Unit, Children’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
- National Clinical Research Center for Child Health, Hangzhou, China
| | - Liping Shi
- Neonatal Intensive Care Unit, Children’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
- National Clinical Research Center for Child Health, Hangzhou, China
| | - Siyuan Jiang
- Department of Neonatology, Children’s Hospital of Fudan University, Shanghai, China
- National Health Commission Key Laboratory of Neonatal Diseases, Fudan University, Children’s Hospital of Fudan University, Shanghai, China
| | - Jianguo Zhou
- Department of Neonatology, Children’s Hospital of Fudan University, Shanghai, China
- National Health Commission Key Laboratory of Neonatal Diseases, Fudan University, Children’s Hospital of Fudan University, Shanghai, China
| | - Xinyue Gu
- National Health Commission Key Laboratory of Neonatal Diseases, Fudan University, Children’s Hospital of Fudan University, Shanghai, China
| | - Xiaoping Lei
- Division of Neonatology, Department of Pediatrics, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Tiantian Xiao
- Department of Neonatology, Chengdu Women’s and Children’s Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Yanping Zhu
- Department of Neonatology, The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Aimin Qian
- Department of Neonatology, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Wenhao Zhou
- Department of Neonatology, Children’s Hospital of Fudan University, Shanghai, China
- National Health Commission Key Laboratory of Neonatal Diseases, Fudan University, Children’s Hospital of Fudan University, Shanghai, China
| | - Shoo K. Lee
- Maternal-Infant Care Research Center and Department of Pediatrics, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Lizhong Du
- Neonatal Intensive Care Unit, Children’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
- National Clinical Research Center for Child Health, Hangzhou, China
| | - Jie Yang
- National Health Commission Key Laboratory of Neonatal Diseases, Fudan University, Children’s Hospital of Fudan University, Shanghai, China
| | - Xiaolu Ma
- Neonatal Intensive Care Unit, Children’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
- National Clinical Research Center for Child Health, Hangzhou, China
| | - Liyuan Hu
- Department of Neonatology, Children’s Hospital of Fudan University, Shanghai, China
- National Health Commission Key Laboratory of Neonatal Diseases, Fudan University, Children’s Hospital of Fudan University, Shanghai, China
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Lacy AM, de Lacy FB. Mechanical and Oral Antibiotic Bowel Preparation in Elective Rectal Resection. JAMA Surg 2024; 159:615. [PMID: 38506855 DOI: 10.1001/jamasurg.2024.0174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Affiliation(s)
- Antonio M Lacy
- Department of General Surgery, Hospital Quironsalud Barcelona, Instituto Quirúrgico Lacy, Barcelona, Spain
| | - F Borja de Lacy
- Department of General Surgery, Hospital Quironsalud Barcelona, Instituto Quirúrgico Lacy, Barcelona, Spain
- Department of General Surgery, Institute of Digestive and Metabolic Diseases, Hospital Clinic, IDIBAPS, University of Barcelona, Barcelona, Spain
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7
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Kean IRL, Clark JA, Zhang Z, Daubney E, White D, Ferrando-Vivas P, Milla G, Cuthbertson B, Pappachan J, Klein N, Mouncey P, Rowan K, Myburgh J, Gouliouris T, Baker S, Parkhill J, Pathan N, Arctic Research Team. Short-duration selective decontamination of the digestive tract infection control does not contribute to increased antimicrobial resistance burden in a pilot cluster randomised trial (the ARCTIC Study). Gut 2024; 73:910-921. [PMID: 38253478 PMCID: PMC11103307 DOI: 10.1136/gutjnl-2023-330851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 01/11/2024] [Indexed: 01/24/2024]
Abstract
OBJECTIVE Selective decontamination of the digestive tract (SDD) is a well-studied but hotly contested medical intervention of enhanced infection control. Here, we aim to characterise the changes to the microbiome and antimicrobial resistance (AMR) gene profiles in critically ill children treated with SDD-enhanced infection control compared with conventional infection control. DESIGN We conducted shotgun metagenomic microbiome and resistome analysis on serial oropharyngeal and faecal samples collected from critically ill, mechanically ventilated patients in a pilot multicentre cluster randomised trial of SDD. The microbiome and AMR profiles were compared for longitudinal and intergroup changes. Of consented patients, faecal microbiome baseline samples were obtained in 89 critically ill children. Additionally, samples collected during and after critical illness were collected in 17 children treated with SDD-enhanced infection control and 19 children who received standard care. RESULTS SDD affected the alpha and beta diversity of critically ill children to a greater degree than standard care. At cessation of treatment, the microbiome of SDD patients was dominated by Actinomycetota, specifically Bifidobacterium, at the end of mechanical ventilation. Altered gut microbiota was evident in a subset of SDD-treated children who returned late longitudinal samples compared with children receiving standard care. Clinically relevant AMR gene burden was unaffected by the administration of SDD-enhanced infection control compared with standard care. SDD did not affect the composition of the oral microbiome compared with standard treatment. CONCLUSION Short interventions of SDD caused a shift in the microbiome but not of the AMR gene pool in critically ill children at the end mechanical ventilation, compared with standard antimicrobial therapy.
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Affiliation(s)
| | - John A Clark
- Department of Paediatrics, University of Cambridge, Cambridge, UK
| | - Zhenguang Zhang
- Department of Paediatrics, University of Cambridge, Cambridge, UK
| | - Esther Daubney
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Deborah White
- Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | | | | | | | | | | | | | | | - John Myburgh
- The George Institute for Global Health, Newtown, New South Wales, Australia
| | | | - Stephen Baker
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Julian Parkhill
- Department of Veterinary Medicine, University of Cambridge, Cambridge, UK
| | - Nazima Pathan
- Department of Paediatrics, University of Cambridge, Cambridge, UK
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Bijla M, Saini SK, Pathak AK, Bharadwaj KP, Sukhavasi K, Patil A, Saini D, Yadav R, Singh S, Leeuwenburgh C, Kumar P. Microbiome interactions with different risk factors in development of myocardial infarction. Exp Gerontol 2024; 189:112409. [PMID: 38522483 DOI: 10.1016/j.exger.2024.112409] [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: 02/16/2024] [Revised: 03/10/2024] [Accepted: 03/20/2024] [Indexed: 03/26/2024]
Abstract
Among all non-communicable diseases, Cardiovascular Diseases (CVDs) stand as the leading global cause of mortality. Within this spectrum, Myocardial Infarction (MI) strikingly accounts for over 15 % of all deaths. The intricate web of risk factors for MI, comprising family history, tobacco use, oral health, hypertension, nutritional pattern, and microbial infections, is firmly influenced by the human gut and oral microbiota, their diversity, richness, and dysbiosis, along with their respective metabolites. Host genetic factors, especially allelic variations in signaling and inflammatory markers, greatly affect the progression or severity of the disease. Despite the established significance of the human microbiome-nutrient-metabolite interplay in associations with CVDs, the unexplored terrain of the gut-heart-oral axis has risen as a critical knowledge gap. Moreover, the pivotal role of the microbiome and the complex interplay with host genetics, compounded by age-related changes, emerges as an area of vital importance in the development of MI. In addition, a distinctive disease susceptibility and severity influenced by gender-based or ancestral differences, adds a crucial insights to the association with increased mortality. Here, we aimed to provide an overview on interactions of microbiome (oral and gut) with major risk factors (tobacco use, alcohol consumption, diet, hypertension host genetics, gender, and aging) in the development of MI and therapeutic regulation.
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Affiliation(s)
- Manisha Bijla
- Department of Biotechnology, Guru Nanak Dev University, Amritsar, India
| | - Sunil Kumar Saini
- Department of Zoology, Swami Shraddhanand College, Delhi University, India
| | - Ajai Kumar Pathak
- Estonian Biocentre, Institute of Genomics, University of Tartu, Tartu, Estonia; Department of Human Genetics, KU Leuven, 3000 Leuven, Belgium
| | | | - Katyayani Sukhavasi
- Department of Cardiac Surgery and The Heart Clinic, Tartu University Hospital & Department of Cardiology, Institute of Clinical Medicine, Tartu University, Tartu, Estonia
| | - Ayurshi Patil
- ICMR-National Institute of Cancer Prevention and Research, Noida, India
| | - Diksha Saini
- ICMR-National Institute of Cancer Prevention and Research, Noida, India
| | - Rakesh Yadav
- Department of Cardiology, AIIMS, New Delhi, India
| | - Shalini Singh
- ICMR-National Institute of Cancer Prevention and Research, Noida, India
| | | | - Pramod Kumar
- ICMR-National Institute of Cancer Prevention and Research, Noida, India.
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Timmis K, Hallsworth JE, McGenity TJ, Armstrong R, Colom MF, Karahan ZC, Chavarría M, Bernal P, Boyd ES, Ramos JL, Kaltenpoth M, Pruzzo C, Clarke G, López‐Garcia P, Yakimov MM, Perlmutter J, Greening C, Eloe‐Fadrosh E, Verstraete W, Nunes OC, Kotsyurbenko O, Nikel PI, Scavone P, Häggblom MM, Lavigne R, Le Roux F, Timmis JK, Parro V, Michán C, García JL, Casadevall A, Payne SM, Frey J, Koren O, Prosser JI, Lahti L, Lal R, Anand S, Sood U, Offre P, Bryce CC, Mswaka AY, Jores J, Kaçar B, Blank LM, Maaßen N, Pope PB, Banciu HL, Armitage J, Lee SY, Wang F, Makhalanyane TP, Gilbert JA, Wood TK, Vasiljevic B, Soberón M, Udaondo Z, Rojo F, Tamang JP, Giraud T, Ropars J, Ezeji T, Müller V, Danbara H, Averhoff B, Sessitsch A, Partida‐Martínez LP, Huang W, Molin S, Junier P, Amils R, Wu X, Ron E, Erten H, de Martinis ECP, Rapoport A, Öpik M, Pokatong WDR, Stairs C, Amoozegar MA, Serna JG. A concept for international societally relevant microbiology education and microbiology knowledge promulgation in society. Microb Biotechnol 2024; 17:e14456. [PMID: 38801001 PMCID: PMC11129164 DOI: 10.1111/1751-7915.14456] [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: 02/08/2024] [Accepted: 03/08/2024] [Indexed: 05/29/2024] Open
Abstract
EXECUTIVE SUMMARY Microbes are all pervasive in their distribution and influence on the functioning and well-being of humans, life in general and the planet. Microbially-based technologies contribute hugely to the supply of important goods and services we depend upon, such as the provision of food, medicines and clean water. They also offer mechanisms and strategies to mitigate and solve a wide range of problems and crises facing humanity at all levels, including those encapsulated in the sustainable development goals (SDGs) formulated by the United Nations. For example, microbial technologies can contribute in multiple ways to decarbonisation and hence confronting global warming, provide sanitation and clean water to the billions of people lacking them, improve soil fertility and hence food production and develop vaccines and other medicines to reduce and in some cases eliminate deadly infections. They are the foundation of biotechnology, an increasingly important and growing business sector and source of employment, and the centre of the bioeconomy, Green Deal, etc. But, because microbes are largely invisible, they are not familiar to most people, so opportunities they offer to effectively prevent and solve problems are often missed by decision-makers, with the negative consequences this entrains. To correct this lack of vital knowledge, the International Microbiology Literacy Initiative-the IMiLI-is recruiting from the global microbiology community and making freely available, teaching resources for a curriculum in societally relevant microbiology that can be used at all levels of learning. Its goal is the development of a society that is literate in relevant microbiology and, as a consequence, able to take full advantage of the potential of microbes and minimise the consequences of their negative activities. In addition to teaching about microbes, almost every lesson discusses the influence they have on sustainability and the SDGs and their ability to solve pressing problems of societal inequalities. The curriculum thus teaches about sustainability, societal needs and global citizenship. The lessons also reveal the impacts microbes and their activities have on our daily lives at the personal, family, community, national and global levels and their relevance for decisions at all levels. And, because effective, evidence-based decisions require not only relevant information but also critical and systems thinking, the resources also teach about these key generic aspects of deliberation. The IMiLI teaching resources are learner-centric, not academic microbiology-centric and deal with the microbiology of everyday issues. These span topics as diverse as owning and caring for a companion animal, the vast range of everyday foods that are produced via microbial processes, impressive geological formations created by microbes, childhood illnesses and how they are managed and how to reduce waste and pollution. They also leverage the exceptional excitement of exploration and discovery that typifies much progress in microbiology to capture the interest, inspire and motivate educators and learners alike. The IMiLI is establishing Regional Centres to translate the teaching resources into regional languages and adapt them to regional cultures, and to promote their use and assist educators employing them. Two of these are now operational. The Regional Centres constitute the interface between resource creators and educators-learners. As such, they will collect and analyse feedback from the end-users and transmit this to the resource creators so that teaching materials can be improved and refined, and new resources added in response to demand: educators and learners will thereby be directly involved in evolution of the teaching resources. The interactions between educators-learners and resource creators mediated by the Regional Centres will establish dynamic and synergistic relationships-a global societally relevant microbiology education ecosystem-in which creators also become learners, teaching resources are optimised and all players/stakeholders are empowered and their motivation increased. The IMiLI concept thus embraces the principle of teaching societally relevant microbiology embedded in the wider context of societal, biosphere and planetary needs, inequalities, the range of crises that confront us and the need for improved decisioning, which should ultimately lead to better citizenship and a humanity that is more sustainable and resilient. ABSTRACT The biosphere of planet Earth is a microbial world: a vast reactor of countless microbially driven chemical transformations and energy transfers that push and pull many planetary geochemical processes, including the cycling of the elements of life, mitigate or amplify climate change (e.g., Nature Reviews Microbiology, 2019, 17, 569) and impact the well-being and activities of all organisms, including humans. Microbes are both our ancestors and creators of the planetary chemistry that allowed us to evolve (e.g., Life's engines: How microbes made earth habitable, 2023). To understand how the biosphere functions, how humans can influence its development and live more sustainably with the other organisms sharing it, we need to understand the microbes. In a recent editorial (Environmental Microbiology, 2019, 21, 1513), we advocated for improved microbiology literacy in society. Our concept of microbiology literacy is not based on knowledge of the academic subject of microbiology, with its multitude of component topics, plus the growing number of additional topics from other disciplines that become vitally important elements of current microbiology. Rather it is focused on microbial activities that impact us-individuals/communities/nations/the human world-and the biosphere and that are key to reaching informed decisions on a multitude of issues that regularly confront us, ranging from personal issues to crises of global importance. In other words, it is knowledge and understanding essential for adulthood and the transition to it, knowledge and understanding that must be acquired early in life in school. The 2019 Editorial marked the launch of the International Microbiology Literacy Initiative, the IMiLI. HERE, WE PRESENT: our concept of how microbiology literacy may be achieved and the rationale underpinning it; the type of teaching resources being created to realise the concept and the framing of microbial activities treated in these resources in the context of sustainability, societal needs and responsibilities and decision-making; and the key role of Regional Centres that will translate the teaching resources into local languages, adapt them according to local cultural needs, interface with regional educators and develop and serve as hubs of microbiology literacy education networks. The topics featuring in teaching resources are learner-centric and have been selected for their inherent relevance, interest and ability to excite and engage. Importantly, the resources coherently integrate and emphasise the overarching issues of sustainability, stewardship and critical thinking and the pervasive interdependencies of processes. More broadly, the concept emphasises how the multifarious applications of microbial activities can be leveraged to promote human/animal, plant, environmental and planetary health, improve social equity, alleviate humanitarian deficits and causes of conflicts among peoples and increase understanding between peoples (Microbial Biotechnology, 2023, 16(6), 1091-1111). Importantly, although the primary target of the freely available (CC BY-NC 4.0) IMiLI teaching resources is schoolchildren and their educators, they and the teaching philosophy are intended for all ages, abilities and cultural spectra of learners worldwide: in university education, lifelong learning, curiosity-driven, web-based knowledge acquisition and public outreach. The IMiLI teaching resources aim to promote development of a global microbiology education ecosystem that democratises microbiology knowledge.
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Affiliation(s)
- Kenneth Timmis
- Institute for MicrobiologyTechnical University of BraunschweigBraunschweigGermany
| | | | | | | | | | - Zeynep Ceren Karahan
- Department of Medical MicrobiologyAnkara University School of MedicineAnkaraTurkey
| | - Max Chavarría
- Escuela de Química, CIPRONAUniversidad de Costa Rica & Centro Nacional de Innovaciones Biotecnológicas (CENIBiot)San JoséCosta Rica
| | - Patricia Bernal
- Department of MicrobiologyUniversidad de SevillaSevillaSpain
| | - Eric S. Boyd
- Department of Microbiology and Cell BiologyMontana State UniversityBozemanMontanaUSA
| | - Juan Luis Ramos
- Consejo Superior de Investigaciones CientificasEstación Experimental del ZaidínGranadaSpain
| | - Martin Kaltenpoth
- Department of Insect SymbiosisMax Planck Institute for Chemical EcologyJenaGermany
| | - Carla Pruzzo
- Department of Earth, Environmental and Life Sciences (DISTAV)University of GenoaGenoaItaly
| | - Gerard Clarke
- Department of Psychiatry and Neurobehavioural Science and APC Microbiome IrelandUniversity College CorkCorkIreland
| | | | - Michail M. Yakimov
- Institute of Polar SciencesItalian National Research Council (ISP‐CNR)MessinaItaly
| | | | - Chris Greening
- Department of Microbiology, Biomedicine Discovery InstituteMonash UniversityClaytonAustralia
| | - Emiley Eloe‐Fadrosh
- Metagenome Program, DOE Joint Genome InstituteLawrence Berkeley National LabBerkeleyCaliforniaUSA
| | - Willy Verstraete
- Center for Microbial Ecology and Technology (CMET)Ghent UniversityGhentBelgium
| | - Olga C. Nunes
- LEPABE‐Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of EngineeringUniversity of PortoPortoPortugal
| | | | - Pablo Iván Nikel
- Systems Environmental Microbiology Group, The Novo Nordisk Foundation Center for BiosustainabilityTechnical University of DenmarkLyngbyDenmark
| | - Paola Scavone
- Departamento de MicrobiologíaInstituto de Investigaciones Biológicas Clemente EstableMontevideoUruguay
| | - Max M. Häggblom
- Department of Biochemistry and MicrobiologyRutgers UniversityNew BrunswickNew JerseyUSA
| | - Rob Lavigne
- Laboratory of Gene TechnologyKU LeuvenHeverleeBelgium
| | - Frédérique Le Roux
- Département de Microbiologie, Infectiologie et ImmunologieUniversité de MontréalMontrealQuebecCanada
| | - James K. Timmis
- Department of Political ScienceUniversity of FreiburgFreiburg im BreisgauGermany
| | - Victor Parro
- Centro de Astrobiología (CAB)CSICINTAMadridSpain
| | - Carmen Michán
- Departamento de Bioquímica y Biología MolecularUniversidad de CórdobaCórdobaSpain
| | - José Luis García
- Environmental Biotechnology LaboratoryCentro de Investigaciones Biológicas Margarita Salas (CIB‐MS, CSIC)MadridSpain
| | - Arturo Casadevall
- Department of Molecular Microbiology and ImmunologyJohns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
| | - Shelley M. Payne
- Department of Molecular BiosciencesUniversity of Texas at AustinAustinTexasUSA
| | - Joachim Frey
- Vetsuisse FacultyUniversity of BernBernSwitzerland
| | - Omry Koren
- Azrieli Faculty of MedicineBar‐Ilan UniversitySafedIsrael
| | | | - Leo Lahti
- Department of ComputingUniversity of TurkuTurkuFinland
| | - Rup Lal
- Acharya Narendra Dev CollegeUniversity of DelhiNew DelhiDelhiIndia
| | - Shailly Anand
- Department of Zoology, Deen Dayal Upadhyaya CollegeUniversity of DelhiNew DelhiDelhiIndia
| | - Utkarsh Sood
- Department of Zoology, Kirori Mal CollegeUniversity of DelhiNew DelhiDelhiIndia
| | - Pierre Offre
- Department of Marine Microbiology and BiogeochemistryNIOZ–Royal Netherlands Institute for Sea ResearchDen BurgThe Netherlands
| | - Casey C. Bryce
- Cabot Institute for the EnvironmentUniversity of BristolBristolUK
| | | | - Jörg Jores
- Institute of Veterinary BacteriologyUniversity of BernBernSwitzerland
| | - Betül Kaçar
- Department of BacteriologyUniversity of Wisconsin–MadisonMadisonWisconsinUSA
| | | | - Nicole Maaßen
- Institute of Applied MicrobiologyRWTH Aachen UniversityAachenGermany
| | - Phillip B. Pope
- Faculty of BiosciencesNorwegian University of Life SciencesAsNorway
- Faculty of Chemistry, Biotechnology and Food ScienceNMBUAsNorway
| | - Horia L. Banciu
- Department of Molecular Biology and BiotechnologyBabeș‐Bolyai UniversityCluj‐NapocaRomania
| | | | - Sang Yup Lee
- Department of Chemical & Biomolecular EngineeringKAIST (Korea Advanced Institute of Science and Technology)DaejeonSouth Korea
| | - Fengping Wang
- International Center for Deep Life Investigation (ICDLI)Shanghai JiaoTong UniversityShanghaiChina
| | - Thulani P. Makhalanyane
- Department of Biochemistry, Genetics and MicrobiologyUniversity of PretoriaHatfieldSouth Africa
| | - Jack A. Gilbert
- Department of Pediatrics and Scripps, Institution of OceanographyUC San DiegoLa JollaCaliforniaUSA
| | - Thomas K. Wood
- Department of Chemical EngineeringPennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Branka Vasiljevic
- Institute of Molecular Genetics and Genetic EngineeringUniversity of BelgradeBelgradeSerbia
| | - Mario Soberón
- Instituto de BiotecnologíaUniversidad Nacional Autónoma de MéxicoMexico CityMexico
| | - Zulema Udaondo
- Consejo Superior de Investigaciones CientificasEstación Experimental del ZaidínGranadaSpain
| | - Fernando Rojo
- Department of Microbial Biotechnology, Centro Nacional de BiotecnologíaCSICMadridSpain
| | | | - Tatiana Giraud
- Laboratoire Ecologie, Systématique et Evolution (ESE)Université Paris‐SaclayGif‐sur‐YvetteFrance
| | - Jeanne Ropars
- Laboratoire Ecologie, Systématique et Evolution (ESE)Université Paris‐SaclayGif‐sur‐YvetteFrance
| | - Thaddeus Ezeji
- Department of Animal SciencesThe Ohio State University & OARDCWoosterOhioUSA
| | - Volker Müller
- Molekulare Mikrobiologie & BioenergetikGoethe‐Universität FrankfurtFrankfurtGermany
| | - Hirofume Danbara
- Shibasaburo Kitasato Memorial MuseumKitasato UniversityMinato‐kuJapan
| | - Beate Averhoff
- Molekulare Mikrobiologie & BioenergetikGoethe‐Universität FrankfurtFrankfurtGermany
| | | | | | - Wei Huang
- Department of Engineering ScienceUniversity of OxfordOxfordUK
| | | | - Pilar Junier
- Laboratory of MicrobiologyUniversity of NeuchâtelNeuchâtelSwitzerland
| | - Ricardo Amils
- Centro de Biología Molecular Severo OchoaMadridSpain
| | - Xiao‐Lei Wu
- Department of Energy Resources EngineeringPeking UniversityBeijingChina
| | - Eliora Ron
- The Shmunis School of Biomedicine and Cancer ResearchTel Aviv UniversityTel AvivIsrael
| | - Huseyin Erten
- Department of Food EngineeringCukurova UniversityAdanaTurkey
| | | | - Alexander Rapoport
- Institute of Microbiology and BiotechnologyUniversity of LatviaRigaLatvia
| | - Maarja Öpik
- Department of BotanyUniversity of TartuTartuEstonia
| | | | | | | | - Jéssica Gil Serna
- Departamento de Genética, Fisiología y MicrobiologíaUniversidad Complutense de MadridMadridSpain
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Marosvölgyi T, Mintál K, Farkas N, Sipos Z, Makszin L, Szabó É, Tóth A, Kocsis B, Kovács K, Hormay E, Lénárd L, Karádi Z, Bufa A. Antibiotics and probiotics-induced effects on the total fatty acid composition of feces in a rat model. Sci Rep 2024; 14:6542. [PMID: 38503819 PMCID: PMC10951306 DOI: 10.1038/s41598-024-57046-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 03/13/2024] [Indexed: 03/21/2024] Open
Abstract
Fatty acids (FAs) play important roles as membrane components and signal transduction molecules. Changes in short chain FA (SCFA) composition are associated with gut microbiota modifications. However, the effect of bacteria-driven changes on the detailed FA spectrum has not been explored yet. We investigated the effect of antibiotics (ABx) and/or probiotics, in four treatment groups on rat stool FA composition. Principal component analysis indicated that the chromatogram profiles of the treatment groups differ, which was also observed at different time points. Linear mixed effects models showed that in the parameters compared (sampling times, treatments. and their interactions), both the weight percentage and the concentration of FAs were affected by ABx and probiotic administration. This study found that the gut microbiome defines trans and branched saturated FAs, most saturated FAs, and unsaturated FAs with less carbon atoms. These results are among the first ones to demonstrate the restoring effects of a probiotic mixture on a substantial part of the altered total FA spectrum, and also revealed a previously unknown relationship between gut bacteria and a larger group of FAs. These findings suggest that intestinal bacteria produce not only SCFAs but also other FAs that may affect the host's physiological processes.
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Affiliation(s)
- Tamás Marosvölgyi
- Institute of Bioanalysis, Medical School, University of Pécs, Pécs, 7624, Hungary
| | - Kitti Mintál
- Institute of Physiology, Medical School, University of Pécs, Pécs, 7624, Hungary
- Medical and Engineering Multidisciplinary Cellular Bioimpedance Research Group, Szentágothai Research Centre, University of Pécs, Pécs, 7624, Hungary
| | - Nelli Farkas
- Institute of Bioanalysis, Medical School, University of Pécs, Pécs, 7624, Hungary
| | - Zoltán Sipos
- Institute of Bioanalysis, Medical School, University of Pécs, Pécs, 7624, Hungary
| | - Lilla Makszin
- Institute of Bioanalysis, Medical School, University of Pécs, Pécs, 7624, Hungary
| | - Éva Szabó
- Department of Biochemistry and Medical Chemistry, Medical School, University of Pécs, Pécs, 7624, Hungary.
| | - Attila Tóth
- Institute of Physiology, Medical School, University of Pécs, Pécs, 7624, Hungary
- Medical and Engineering Multidisciplinary Cellular Bioimpedance Research Group, Szentágothai Research Centre, University of Pécs, Pécs, 7624, Hungary
| | - Béla Kocsis
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, Pécs, 7624, Hungary
| | - Krisztina Kovács
- Department of Medical Microbiology and Immunology, Medical School, University of Pécs, Pécs, 7624, Hungary
| | - Edina Hormay
- Institute of Physiology, Medical School, University of Pécs, Pécs, 7624, Hungary
- Medical and Engineering Multidisciplinary Cellular Bioimpedance Research Group, Szentágothai Research Centre, University of Pécs, Pécs, 7624, Hungary
| | - László Lénárd
- Institute of Physiology, Medical School, University of Pécs, Pécs, 7624, Hungary
- Medical and Engineering Multidisciplinary Cellular Bioimpedance Research Group, Szentágothai Research Centre, University of Pécs, Pécs, 7624, Hungary
| | - Zoltán Karádi
- Institute of Physiology, Medical School, University of Pécs, Pécs, 7624, Hungary
- Medical and Engineering Multidisciplinary Cellular Bioimpedance Research Group, Szentágothai Research Centre, University of Pécs, Pécs, 7624, Hungary
| | - Anita Bufa
- Institute of Bioanalysis, Medical School, University of Pécs, Pécs, 7624, Hungary
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Célleri-Gomezcoello A, Avila C, Alessio S, Hanson CM, Ochoa A, Mora M, Arciniegas L, Holloway B, Pränting M, Encalada D. Impact of the ´Alforja Educativa' on Ecuadorian schoolchildren's knowledge of bacteria, antibiotics, and antibiotic resistance, a pretest-posttest study. BMC Public Health 2024; 24:844. [PMID: 38500082 PMCID: PMC10949744 DOI: 10.1186/s12889-024-18340-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Accepted: 03/12/2024] [Indexed: 03/20/2024] Open
Abstract
BACKGROUND Widespread use of antibiotics disrupts the balance in the microbial world and promotes development and spread of antibiotic resistant bacteria. Educational initiatives are important as part of strategies to mitigate antibiotic resistance. The Alforja Educativa is an innovative educational program developed in Ecuador with the aim to teach schoolchildren about antibiotic use and antibiotic resistance. The program places antibiotic resistance within a broader frame of health, well-being, and ecological awareness, highlighting the importance to maintain balance in the microbial world. The objective of this study was to evaluate the effect of the Alforja Educativa on knowledge about bacteria, antibiotics and antibiotic resistance amongst fifth and sixth grade Ecuadorian schoolchildren. METHODS This pretest-posttest intervention study was conducted between April and June 2017 and comprised fifth and sixth grade schoolchildren from 20 schools in Cuenca, Ecuador, recruited by purposeful sampling. The Alforja Educativa was implemented over twelve 80-minute sessions by trained university students. Schoolchildren's knowledge was assessed before and after participation in the educational program using a structured questionnaire. A mean total score, the proportion of correct responses for each individual knowledge-based question, as well as correct responses for each of the multiple-choice options of the knowledge-based questions were calculated for the pretest and posttest. RESULTS A total of 1,257 schoolchildren participated in the Alforja Educativa program, of which 980 (78%) completed both the pretest and posttest. Overall, the mean total knowledge score increased from pretest to posttest (2.58/7.00 vs. 3.85/7.00; CI = 0.5, p < 0.001). After participation in the program, the proportion of schoolchildren that correctly identified that bacteria can be both good and bad increased from 35.0 to 84.3%. In addition, scores increased for correctly identifying the meaning of antibiotic resistance (37.4-72.0%); how to prevent antibiotic resistance (63.2-74.6%); and for identifying the meaning of self-medication (46.3-54.3%). CONCLUSION The Alforja Educativa was effective in improving the knowledge of participating schoolchildren about concepts related to bacteria, antibiotics and antibiotic resistance. The holistic perspective taken to explain the complex relationship between humans and bacteria, as well as the effect of antibiotics on the microbial world, may help provide a foundation for more sustainable antibiotic use.
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Affiliation(s)
| | - Caroline Avila
- Universidad del Azuay, Av. 24 de Mayo 7-77, Cuenca, 010107, Ecuador
| | - Silvina Alessio
- ReAct Latin America, Fundación Niño a Niño, Tomás Ordóñez 9-18 y Simón Bolívar, Cuenca, 010101, Ecuador
| | - Celina M Hanson
- ReAct Europe, Department of Medical Sciences, Uppsala University, Box 256, Uppsala, 751 05, Sweden
| | - Andrea Ochoa
- Facultad de Medicina, Universidad Católica de Cuenca, Av. de las Américas y Humboldt, Cuenca, 010105, Ecuador
| | - Miriann Mora
- Universidad del Azuay, Av. 24 de Mayo 7-77, Cuenca, 010107, Ecuador
| | | | - Bronwen Holloway
- ReAct Europe, Department of Medical Sciences, Uppsala University, Box 256, Uppsala, 751 05, Sweden
| | - Maria Pränting
- ReAct Europe, Department of Medical Sciences, Uppsala University, Box 256, Uppsala, 751 05, Sweden.
| | - Daniela Encalada
- Facultad de Medicina, Universidad Católica de Cuenca, Av. de las Américas y Humboldt, Cuenca, 010105, Ecuador
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Waitzberg D, Guarner F, Hojsak I, Ianiro G, Polk DB, Sokol H. Can the Evidence-Based Use of Probiotics (Notably Saccharomyces boulardii CNCM I-745 and Lactobacillus rhamnosus GG) Mitigate the Clinical Effects of Antibiotic-Associated Dysbiosis? Adv Ther 2024; 41:901-914. [PMID: 38286962 PMCID: PMC10879266 DOI: 10.1007/s12325-024-02783-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 01/05/2024] [Indexed: 01/31/2024]
Abstract
Dysbiosis corresponds to the disruption of a formerly stable, functionally complete microbiota. In the gut, this imbalance can lead to adverse health outcomes in both the short and long terms, with a potential increase in the lifetime risks of various noncommunicable diseases and disorders such as atopy (like asthma), inflammatory bowel disease, neurological disorders, and even behavioural and psychological disorders. Although antibiotics are highly effective in reducing morbidity and mortality in infectious diseases, antibiotic-associated diarrhoea is a common, non-negligible clinical sign of gut dysbiosis (and the only visible one). Re-establishment of a normal (functional) gut microbiota is promoted by completion of the clinically indicated course of antibiotics, the removal of any other perturbing external factors, the passage of time (i.e. recovery through the microbiota's natural resilience), appropriate nutritional support, and-in selected cases-the addition of probiotics. Systematic reviews and meta-analyses of clinical trials have confirmed the strain-specific efficacy of some probiotics (notably the yeast Saccharomyces boulardii CNCM I-745 and the bacterium Lactobacillus rhamnosus GG) in the treatment and/or prevention of antibiotic-associated diarrhoea in children and in adults. Unusually for a probiotic, S. boulardii is a eukaryote and is not therefore directly affected by antibiotics-making it suitable for administration in cases of antibiotic-associated diarrhoea. A robust body of evidence from clinical trials and meta-analyses shows that the timely administration of an adequately dosed probiotic (upon initiation of antibiotic treatment or within 48 h) can help to prevent or resolve the consequences of antibiotic-associated dysbiosis (such as diarrhoea) and promote the resilience of the gut microbiota and a return to the pre-antibiotic state. A focus on the prescription of evidence-based, adequately dosed probiotics should help to limit unjustified and potentially ineffective self-medication.
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Affiliation(s)
- Dan Waitzberg
- Department of Gastroenterology, LIM-35, School of Medicine, University of São Paulo, São Paulo, Brazil
| | | | - Iva Hojsak
- Referral Centre for Pediatric Gastroenterology and Nutrition, School of Medicine, University of Zagreb, Zagreb, Croatia
- University of Zagreb Medical School, Zagreb, Croatia
| | - Gianluca Ianiro
- Department of Translational Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Medical and Surgical Sciences, UOC Gastroenterologia, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
- Department of Medical and Surgical Sciences, UOC CEMAD Centro Malattie Dell'Apparato Digerente, Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Gemelli IRCCS, Rome, Italy
| | - D Brent Polk
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, San Diego, and Rady Children's Hospital, University of California, San Diego, CA, USA
| | - Harry Sokol
- Gastroenterology Department, Saint-Antoine Hospital, Sorbonne Université, INSERM, Centre de Recherche Saint-Antoine, CRSA, AP-HP, 184 Rue du Faubourg Saint-Antoine, 75571, Paris Cedex 12, France.
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis Institute, Jouy-en-Josas, France.
- Paris Center for Microbiome Medicine (PaCeMM) FHU, Paris, France.
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Kamel M, Aleya S, Alsubih M, Aleya L. Microbiome Dynamics: A Paradigm Shift in Combatting Infectious Diseases. J Pers Med 2024; 14:217. [PMID: 38392650 PMCID: PMC10890469 DOI: 10.3390/jpm14020217] [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: 12/26/2023] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 02/24/2024] Open
Abstract
Infectious diseases have long posed a significant threat to global health and require constant innovation in treatment approaches. However, recent groundbreaking research has shed light on a previously overlooked player in the pathogenesis of disease-the human microbiome. This review article addresses the intricate relationship between the microbiome and infectious diseases and unravels its role as a crucial mediator of host-pathogen interactions. We explore the remarkable potential of harnessing this dynamic ecosystem to develop innovative treatment strategies that could revolutionize the management of infectious diseases. By exploring the latest advances and emerging trends, this review aims to provide a new perspective on combating infectious diseases by targeting the microbiome.
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Affiliation(s)
- Mohamed Kamel
- Department of Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza 11221, Egypt
| | - Sami Aleya
- Faculty of Medecine, Université de Bourgogne Franche-Comté, Hauts-du-Chazal, 25030 Besançon, France
| | - Majed Alsubih
- Department of Civil Engineering, King Khalid University, Guraiger, Abha 62529, Saudi Arabia
| | - Lotfi Aleya
- Laboratoire de Chrono-Environnement, Université de Bourgogne Franche-Comté, UMR CNRS 6249, La Bouloie, 25030 Besançon, France
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Samananda Singh L. Nano-emulsion encapsulation for the efficient delivery of bacteriophage therapeutics. Biologicals 2024; 85:101725. [PMID: 37951140 DOI: 10.1016/j.biologicals.2023.101725] [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: 04/19/2023] [Revised: 10/20/2023] [Accepted: 10/31/2023] [Indexed: 11/13/2023] Open
Abstract
Antibiotic resistance has become the major concern for global public health. Phage therapy is being considered as an alternative for antibiotics to treat the multidrug resistant bacterial infections. Bacteriophage therapeutic developments has faced many challenges, including the drug formulations for sustainable phage delivery. The nano-emulsion platform has been described as the best approach to retain phage efficacy, shelf life and stability. Encapsulated phage drugs ensure stable delivery of phages to the target site and integrate in the system. In this review, our main focus is on the nano-emulsion encapsulation of bacteriophages and its effects towards the phage therapeutic development.
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15
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Liu K, Wang C, Zhou X, Guo X, Yang Y, Liu W, Zhao R, Song H. Bacteriophage therapy for drug-resistant Staphylococcus aureus infections. Front Cell Infect Microbiol 2024; 14:1336821. [PMID: 38357445 PMCID: PMC10864608 DOI: 10.3389/fcimb.2024.1336821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Accepted: 01/09/2024] [Indexed: 02/16/2024] Open
Abstract
Drug-resistant Staphylococcus aureus stands as a prominent pathogen in nosocomial and community-acquired infections, capable of inciting various infections at different sites in patients. This includes Staphylococcus aureus bacteremia (SaB), which exhibits a severe infection frequently associated with significant mortality rate of approximately 25%. In the absence of better alternative therapies, antibiotics is still the main approach for treating infections. However, excessive use of antibiotics has, in turn, led to an increase in antimicrobial resistance. Hence, it is imperative that new strategies are developed to control drug-resistant S. aureus infections. Bacteriophages are viruses with the ability to infect bacteria. Bacteriophages, were used to treat bacterial infections before the advent of antibiotics, but were subsequently replaced by antibiotics due to limited theoretical understanding and inefficient preparation processes at the time. Recently, phages have attracted the attention of many researchers again because of the serious problem of antibiotic resistance. This article provides a comprehensive overview of phage biology, animal models, diverse clinical case treatments, and clinical trials in the context of drug-resistant S. aureus phage therapy. It also assesses the strengths and limitations of phage therapy and outlines the future prospects and research directions. This review is expected to offer valuable insights for researchers engaged in phage-based treatments for drug-resistant S. aureus infections.
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Affiliation(s)
- Kaixin Liu
- College of Public Health, Zhengzhou University, Zhengzhou, China
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Chao Wang
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Xudong Zhou
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
- College of Public Health, China Medical University, Shenyang, China
| | - Xudong Guo
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Yi Yang
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Wanying Liu
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Rongtao Zhao
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Hongbin Song
- College of Public Health, Zhengzhou University, Zhengzhou, China
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
- College of Public Health, China Medical University, Shenyang, China
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16
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Bhattarai SK, Du M, Zeamer AL, Morzfeld BM, Kellogg TD, Firat K, Benjamin A, Bean JM, Zimmerman M, Mardi G, Vilbrun SC, Walsh KF, Fitzgerald DW, Glickman MS, Bucci V. Commensal antimicrobial resistance mediates microbiome resilience to antibiotic disruption. Sci Transl Med 2024; 16:eadi9711. [PMID: 38232140 PMCID: PMC11017772 DOI: 10.1126/scitranslmed.adi9711] [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: 05/29/2023] [Accepted: 12/15/2023] [Indexed: 01/19/2024]
Abstract
Despite their therapeutic benefits, antibiotics exert collateral damage on the microbiome and promote antimicrobial resistance. However, the mechanisms governing microbiome recovery from antibiotics are poorly understood. Treatment of Mycobacterium tuberculosis, the world's most common infection, represents the longest antimicrobial exposure in humans. Here, we investigate gut microbiome dynamics over 20 months of multidrug-resistant tuberculosis (TB) and 6 months of drug-sensitive TB treatment in humans. We find that gut microbiome dynamics and TB clearance are shared predictive cofactors of the resolution of TB-driven inflammation. The initial severe taxonomic and functional microbiome disruption, pathobiont domination, and enhancement of antibiotic resistance that initially accompanied long-term antibiotics were countered by later recovery of commensals. This resilience was driven by the competing evolution of antimicrobial resistance mutations in pathobionts and commensals, with commensal strains with resistance mutations reestablishing dominance. Fecal-microbiota transplantation of the antibiotic-resistant commensal microbiome in mice recapitulated resistance to further antibiotic disruption. These findings demonstrate that antimicrobial resistance mutations in commensals can have paradoxically beneficial effects by promoting microbiome resilience to antimicrobials and identify microbiome dynamics as a predictor of disease resolution in antibiotic therapy of a chronic infection.
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Affiliation(s)
- Shakti K Bhattarai
- Department of Microbiology and Physiological Systems, UMass Chan Medical School, Worcester, MA 01605, USA
- Program in Microbiome Dynamics, UMass Chan Medical School, Worcester, MA 01605, USA
| | - Muxue Du
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Immunology and Microbial Pathogenesis Graduate Program, Weill Cornell Graduate School, New York, NY 10065, USA
| | - Abigail L Zeamer
- Department of Microbiology and Physiological Systems, UMass Chan Medical School, Worcester, MA 01605, USA
- Program in Microbiome Dynamics, UMass Chan Medical School, Worcester, MA 01605, USA
| | - Benedikt M Morzfeld
- Department of Microbiology and Physiological Systems, UMass Chan Medical School, Worcester, MA 01605, USA
- Program in Microbiome Dynamics, UMass Chan Medical School, Worcester, MA 01605, USA
| | - Tasia D Kellogg
- Department of Microbiology and Physiological Systems, UMass Chan Medical School, Worcester, MA 01605, USA
- Program in Microbiome Dynamics, UMass Chan Medical School, Worcester, MA 01605, USA
| | - Kaya Firat
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, NJ 07110, USA
| | - Anna Benjamin
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - James M Bean
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Matthew Zimmerman
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, NJ 07110, USA
| | - Gertrude Mardi
- Haitian Study Group for Kaposi’s Sarcoma and Opportunistic Infections (GHESKIO), Port-au-Prince, Haiti
| | - Stalz Charles Vilbrun
- Haitian Study Group for Kaposi’s Sarcoma and Opportunistic Infections (GHESKIO), Port-au-Prince, Haiti
| | - Kathleen F Walsh
- Center for Global Health, Weill Cornell Medicine, New York, NY 10065, USA
- Division of General Internal Medicine, Weill Cornell Medicine, New York, NY 10065, USA
| | | | - Michael S Glickman
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
- Immunology and Microbial Pathogenesis Graduate Program, Weill Cornell Graduate School, New York, NY 10065, USA
| | - Vanni Bucci
- Department of Microbiology and Physiological Systems, UMass Chan Medical School, Worcester, MA 01605, USA
- Program in Microbiome Dynamics, UMass Chan Medical School, Worcester, MA 01605, USA
- Immunology and Microbiology Program, UMass Chan Medical School, Worcester, MA 01605, USA
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17
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Caty SN, Alvarez-Buylla A, Vasek C, Tapia EE, Martin NA, McLaughlin T, Weber PK, Mayali X, Coloma LA, Morris MM, O'Connell LA. A toxic environment selects for specialist microbiome in poison frogs. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.10.574901. [PMID: 38260330 PMCID: PMC10802471 DOI: 10.1101/2024.01.10.574901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Shifts in microbiome community composition can have large effects on host health. It is therefore important to understand how perturbations, like those caused by the introduction of exogenous chemicals, modulate microbiome community composition. In poison frogs within the family Dendrobatidae, the skin microbiome is exposed to the alkaloids that the frogs sequester from their diet and use for defense. Given the demonstrated antimicrobial effects of these poison frog alkaloids, these compounds may be structuring the skin microbial community. To test this, we first characterized microbial communities from chemically defended and closely related non-defended frogs from Ecuador. Then we conducted a laboratory experiment to monitor the effect of the alkaloid decahydroquinoline (DHQ) on the microbiome of a single frog species. In both the field and lab experiments, we found that alkaloid-exposed microbiomes are more species rich and phylogenetically diverse, with an increase in rare taxa. To better understand the strain-specific behavior in response to alkaloids, we cultured microbial strains from poison frog skin and found the majority of strains exhibited either enhanced growth or were not impacted by the addition of DHQ. Additionally, stable isotope tracing coupled to nanoSIMS suggests that some of these strains are able to metabolize DHQ. Taken together, these data suggest that poison frog chemical defenses open new niches for skin-associated microbes with specific adaptations, including the likely metabolism of alkaloids, that enable their survival in this toxic environment. This work helps expand our understanding of how exposure to exogenous compounds like alkaloids can impact host microbiomes.
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Affiliation(s)
| | | | - Cooper Vasek
- Department of Biology, Stanford University, Stanford CA, USA
| | - Elicio E Tapia
- Leibniz Institute for the Analysis of Biodiversity Change Martin-Luther-King-Platz 3 20146 Hamburg, Germany
| | - Nora A Martin
- Department of Biology, Stanford University, Stanford CA, USA
| | - Theresa McLaughlin
- Stanford University Mass Spectrometry, Stanford University, Stanford CA, USA
| | - Peter K Weber
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore CA, USA
| | - Xavier Mayali
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore CA, USA
| | - Luis A Coloma
- Centro Jambatu de Investigación y Conservación de Anfibios, Fundación Jambatu, San Rafael, Quito, Ecuador
| | - Megan M Morris
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore CA, USA
| | - Lauren A O'Connell
- Department of Biology, Stanford University, Stanford CA, USA
- Sarafan ChEM-H, Stanford University, Stanford, CA, USA
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Qiao Y, Han F, Peng X, Rombenso A, Li E. Dietary β-Glucan Alleviates Antibiotic-Associated Side Effects by Increasing the Levels of Antioxidant Enzyme Activities and Modifying Intestinal Microbiota in Pacific White Shrimp ( Litopenaeus vannamei). Antioxidants (Basel) 2023; 13:52. [PMID: 38247477 PMCID: PMC10812432 DOI: 10.3390/antiox13010052] [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: 11/13/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 01/23/2024] Open
Abstract
Antibiotics and their secondary metabolites are commonly found in aquatic ecosystems, leading to the passive exposure of many aquatic animals to low doses of antibiotics, which can affect their health. However, there is limited information available on how to mitigate the side effects of antibiotics on normal aquatic animals. This study aimed to investigate the potential of dietary β-glucan to alleviate the side effects induced by antibiotics in Pacific white shrimp (Litopenaeus vannamei) (0.37 ± 0.02 g). A six-week feeding trial was conducted with four dietary treatments including a control, 1 g/kg β-glucan (β-glucan), 50 mg/kg oxytetracycline (OTC), and a combination of 50 mg/kg OTC and 1 g/kg β-glucan (Mix) groups. At the end of the trial, the growth performance, intestinal microbial composition, antioxidant capacity, and immune response of the shrimp were assessed. There were no significant differences in growth performance among the groups, but the condition factor of the shrimp in the Mix group was significantly decreased when compared to the control and β-glucan groups. The activities of hepatopancreas catalase (CAT) and serum phenol oxidase in the OTC group were significantly lower than those in the control group. On the other hand, the activities of hepatopancreas superoxide dismutase and CAT enzymes in the β-glucan group were significantly higher than those in the OTC group. The supplementation of β-glucan in combination with antibiotics significantly increased the CAT activity and bacteriolytic activity compared to the OTC and control groups, respectively. Moreover, an analysis of the intestinal microbiota revealed that the Observed_species estimator in the Mix group was significantly higher than that in the control group. Dietary antibiotics significantly increased the abundance of Actinobacteria at the phylum level, but the Mix group showed no significant difference. The supplementation of β-glucan in combination with antibiotics also significantly increased the relative abundance of Meridianimaribacter compared to the control group. Additionally, the synergistic influence of β-glucan with antibiotics increased the beta diversity of intestinal microbiotas. These findings suggest that the supplementation of β-glucan in combination with antibiotics on Pacific white shrimp can alleviate the low antioxidant capacity and immune response caused by antibiotics while enhancing the intestinal microbial composition. This provides a potential solution to mitigate the negative impacts of antibiotics in aquaculture.
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Affiliation(s)
- Yanbing Qiao
- School of Life Sciences, East China Normal University, Shanghai 200241, China;
- Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province, Hainan Aquaculture Breeding Engineering Research Center, School of Marine Biology and Fisheries, Hainan University, Haikou 570228, China;
| | - Fenglu Han
- Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province, Hainan Aquaculture Breeding Engineering Research Center, School of Marine Biology and Fisheries, Hainan University, Haikou 570228, China;
| | - Xuhan Peng
- Key Laboratory of Tropical Hydrobiology and Biotechnology of Hainan Province, Hainan Aquaculture Breeding Engineering Research Center, School of Marine Biology and Fisheries, Hainan University, Haikou 570228, China;
| | - Artur Rombenso
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Agriculture and Food, Livestock & Aquaculture Program, Bribie Island Research Centre, Bribie Island, Brisbane, QLD 4507, Australia;
| | - Erchao Li
- School of Life Sciences, East China Normal University, Shanghai 200241, China;
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Yin Y, Xie Y, Wu Z, Qian Q, Yang H, Li S, Li X. Preventive Effects of Apple Polyphenol Extract on High-Fat-Diet-Induced Hepatic Steatosis Are Related to the Regulation of Hepatic Lipid Metabolism, Autophagy, and Gut Microbiota in Aged Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:20011-20033. [PMID: 38055797 DOI: 10.1021/acs.jafc.3c00596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
Our previous study confirmed that the ameliorated effects of an intervention with an apple polyphenol extract (APE) on hepatic steatosis induced by a high-fat diet (HFD) are dependent on SIRT1. Since SIRT1 expression decreases with age, it remains unclear whether APE intervention is effective against hepatic steatosis in aged mice. Thus, 12-month-old C57BL/6 male mice were fed with an HFD to establish an aging model of hepatic steatosis and treated with 500 mg/(kg·bw·d) APE for 12 weeks. Young mice (two months old) and baseline mice were used as controls to examine the effects of natural aging on hepatic steatosis. Compared with baseline mice, no obvious difference in hepatic histopathological assessment was observed for both young and aged mice on normal diets. Meanwhile, HFD induced much higher nonalcoholic fatty liver disease (NAFLD) activity scores in aged mice than in young mice. APE intervention ameliorated lipid and glucose metabolic disorders and liver injury in HFD-fed aged mice, improved hepatic steatosis, and reduced NAFLD activity scores. The upregulated expressions of SIRT1, HSL, ATG5, Ulk1, and Becn1 and downregulated expressions of HMGCR and FOXO1 suggested improved lipid metabolism and activated autophagy. APE intervention decreased the ratio of Firmicutes/Bacteroidetes and elevated the Akkermansia probiotics abundance. In summary, HFD showed a more significant effect on hepatic steatosis compared to the natural aging process in aged mice, and APE might be a promising dietary ingredient for alleviating hepatic steatosis.
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Affiliation(s)
- Yan Yin
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Yisha Xie
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Zhengli Wu
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Qingfan Qian
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Hao Yang
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Shilan Li
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
| | - Xinli Li
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu 215123, P.R. China
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20
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Baindara P, Mandal SM. Gut-Antimicrobial Peptides: Synergistic Co-Evolution with Antibiotics to Combat Multi-Antibiotic Resistance. Antibiotics (Basel) 2023; 12:1732. [PMID: 38136766 PMCID: PMC10740742 DOI: 10.3390/antibiotics12121732] [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: 11/29/2023] [Revised: 12/11/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023] Open
Abstract
Due to huge diversity and dynamic competition, the human gut microbiome produces a diverse array of antimicrobial peptides (AMPs) that play an important role in human health. The gut microbiome has an important role in maintaining gut homeostasis by the AMPs and by interacting with other human organs via established connections such as the gut-lung, and gut-brain axis. Additionally, gut AMPs play a synergistic role with other gut microbiota and antimicrobials to maintain gut homeostasis by fighting against multi-antibiotic resistance (MAR) bacteria. Further, conventional antibiotics intake creates a synergistic evolutionary pressure for gut AMPs, where antibiotics and gut AMPs fight synergistically against MAR. Overall, gut AMPs are evolving under a complex and highly synergistic co-evolutionary pressure created by the various interactions between gut microbiota, gut AMPs, and antibiotics; however, the complete mechanism is not well understood. The current review explores the synergistic action of gut AMPs and antibiotics along with possibilities to fight against MAR bacteria.
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Affiliation(s)
- Piyush Baindara
- Radiation Oncology, NextGen Precision Health, School of Medicine, University of Missouri, Columbia, MO 65211, USA
| | - Santi M. Mandal
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India;
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21
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Ishengoma VL, Amachawadi RG, Tokach MD, Shi X, Kang Q, Goodband RD, DeRouchey J, Woodworth J, Nagaraja TG. Impact of In-Feed versus In-Water Chlortetracycline and Tiamulin Administrations on Fecal Prevalence and Antimicrobial Susceptibilities of Campylobacter in a Population of Nursery Pigs. Microorganisms 2023; 11:2876. [PMID: 38138021 PMCID: PMC10745678 DOI: 10.3390/microorganisms11122876] [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: 10/19/2023] [Revised: 11/19/2023] [Accepted: 11/25/2023] [Indexed: 12/24/2023] Open
Abstract
Antimicrobial resistance (AMR) in bacteria is a major public health concern in the US and around the world. Campylobacter is an important foodborne pathogen that resides in the gut of pigs and is shed in feces, with the potential to be transmitted to humans. In pigs, the oral route, either in-feed or in-water, is by far the most common route of administration of antimicrobials. Because the distribution of the antibiotic in the gut and the dosages are different, the impact of in-feed vs. in-water administration of antibiotics on the development of AMR is likely to be different. Therefore, a study was conducted to compare in-feed vs. in-water administrations of chlortetracycline (CTC) and/or tiamulin on fecal prevalence and AMR profiles of Campylobacter among weaned nursery piglets. A total of 1,296 weaned piglets, allocated into 48 pens (27 piglets per pen), were assigned randomly to six treatment groups: Control (no antibiotic), in-feed CTC, in-water CTC, in-feed tiamulin, in-water tiamulin, or in-feed CTC and tiamulin. Fecal samples were collected randomly from 5 piglets from each pen during the pre-treatment (days 0, 7), treatment (days 14, 21), and post-treatment (days 28, 35) phases. Bacterial isolations and species identifications were conducted by culture and PCR, respectively. The microbroth dilution method with SensititreTM plates was used to determine the antimicrobial susceptibility and resistance of Campylobacter isolates. The results on resistance were interpreted based on the European Committee on Antimicrobial Susceptibility Testing (EUCAST) epidemiological cutoff values for Campylobacter. The overall prevalence of Campylobacter was 18.2% (262/1440). Speciation of Campylobacter isolates by PCR indicated the prevalence of only two species: Campylobacter hyointestinalis (17.9%; 258/1440) and C. coli (0.3%; 4/1440). Campylobacter isolates were resistant to tetracycline (98.5%), ciprofloxacin (89.3%), and nalidixic acid (60.3%). Neither the antibiotic nor the route of administration had an effect (p > 0.05) on the prevalence of AMR Campylobacter in the feces of piglets.
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Affiliation(s)
- Victor L. Ishengoma
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA;
| | - Raghavendra G. Amachawadi
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA;
| | - Mike D. Tokach
- Department of Animal Sciences & Industry, College of Agriculture, Kansas State University, Manhattan, KS 66506, USA; (M.D.T.); (R.D.G.); (J.D.); (J.W.)
| | - Xiaorong Shi
- Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA; (X.S.); (T.G.N.)
| | - Qing Kang
- Department of Statistics, College of Arts and Sciences, Kansas State University, Manhattan, KS 66506, USA;
| | - Robert D. Goodband
- Department of Animal Sciences & Industry, College of Agriculture, Kansas State University, Manhattan, KS 66506, USA; (M.D.T.); (R.D.G.); (J.D.); (J.W.)
| | - Joel DeRouchey
- Department of Animal Sciences & Industry, College of Agriculture, Kansas State University, Manhattan, KS 66506, USA; (M.D.T.); (R.D.G.); (J.D.); (J.W.)
| | - Jason Woodworth
- Department of Animal Sciences & Industry, College of Agriculture, Kansas State University, Manhattan, KS 66506, USA; (M.D.T.); (R.D.G.); (J.D.); (J.W.)
| | - Tiruvoor G. Nagaraja
- Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA; (X.S.); (T.G.N.)
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22
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Gomez-Ramirez U, Nolasco-Romero CG, Contreras-Rodríguez A, Zuñiga G, Mendoza-Elizalde S, Prado-Galbarro FJ, Pérez Aguilar F, Pedraza Tinoco JE, Valencia-Mayoral P, Velázquez-Guadarrama N. Dysbiosis by Eradication of Helicobacter pylori Infection Associated with Follicular Gastropathy and Pangastropathy. Microorganisms 2023; 11:2748. [PMID: 38004759 PMCID: PMC10673246 DOI: 10.3390/microorganisms11112748] [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: 09/28/2023] [Revised: 11/03/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Dysbiosis plays an important role in the development of bacterial infections in the gastric mucosa, particularly Helicobacter pylori. The international guidelines for the treatment of H. pylori infections suggest standard triple therapy (STT). Nevertheless, because of the increasing resistance rates to clarithromycin, metronidazole has been widely considered in several countries. Unfortunately, the non-justified administration of antibiotics induces dysbiosis in the target organ. We characterized the gastric microbiota of patients diagnosed with follicular gastropathy and pangastropathy attributed to H. pylori infection, before and after the administration of STT with metronidazole. Dominant relative abundances of Cutibacterium were observed in pre-treatment patients, whereas H. pylori was observed at <11%, suggesting the multifactor property of the disease. The correlation of Cutibacterium acnes and H. pylori with gastric infectious diseases was also evaluated using quantitative real-time polymerase chain reaction. The dominance of C. acnes over H. pylori was observed in gastritis, gastropathies, and non-significant histological alterations. None of the microorganisms were detected in the intestinal metaplasia. Post-treatment alterations revealed an increase in the relative abundances of Staphylococcus, Pseudomonas, and Klebsiella. Non-H. pylori gastrointestinal bacteria can be associated with the initiation and development of gastric diseases, such as pathobiont C. acnes.
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Affiliation(s)
- Uriel Gomez-Ramirez
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (U.G.-R.); (C.G.N.-R.); (S.M.-E.)
- Posgrado en Ciencias Quimicobiológicas, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | - Carolina G. Nolasco-Romero
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (U.G.-R.); (C.G.N.-R.); (S.M.-E.)
- Posgrado en Ciencias Quimicobiológicas, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico
| | - Araceli Contreras-Rodríguez
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico;
| | - Gerardo Zuñiga
- Laboratorio de Variación Biológica y Evolución, Departamento de Zoología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City 11340, Mexico;
| | - Sandra Mendoza-Elizalde
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (U.G.-R.); (C.G.N.-R.); (S.M.-E.)
| | | | - Fernando Pérez Aguilar
- Servicio de Endoscopía Gastrointestinal, Hospital General Dr. Fernando Quiroz, Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado, Mexico City 01140, Mexico;
| | | | - Pedro Valencia-Mayoral
- Departamento de Patología Clínica y Experimental, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico
| | - Norma Velázquez-Guadarrama
- Laboratorio de Investigación en Enfermedades Infecciosas, Hospital Infantil de México Federico Gómez, Mexico City 06720, Mexico; (U.G.-R.); (C.G.N.-R.); (S.M.-E.)
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23
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He S, Lin F, Hu X, Pan P. Gut Microbiome-Based Therapeutics in Critically Ill Adult Patients-A Narrative Review. Nutrients 2023; 15:4734. [PMID: 38004128 PMCID: PMC10675331 DOI: 10.3390/nu15224734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/02/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
The gut microbiota plays a crucial role in the human microenvironment. Dysbiosis of the gut microbiota is a common pathophysiological phenomenon in critically ill patients. Therefore, utilizing intestinal microbiota to prevent complications and improve the prognosis of critically ill patients is a possible therapeutic direction. The gut microbiome-based therapeutics approach focuses on improving intestinal microbiota homeostasis by modulating its diversity, or treating critical illness by altering the metabolites of intestinal microbiota. There is growing evidence that fecal microbiota transplantation (FMT), selective digestive decontamination (SDD), and microbiota-derived therapies are all effective treatments for critical illness. However, different treatments are appropriate for different conditions, and more evidence is needed to support the selection of optimal gut microbiota-related treatments for different diseases. This narrative review summarizes the curative effects and limitations of microbiome-based therapeutics in different critically ill adult patients, aiming to provide possible directions for gut microbiome-based therapeutics for critically ill patients such as ventilator-associated pneumonia, sepsis, acute respiratory distress syndrome, and COVID-19, etc.
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Affiliation(s)
- Shiyue He
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha 410008, China; (S.H.); (F.L.)
- FuRong Laboratory, Changsha 410078, China
| | - Fengyu Lin
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha 410008, China; (S.H.); (F.L.)
- FuRong Laboratory, Changsha 410078, China
| | - Xinyue Hu
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha 410008, China; (S.H.); (F.L.)
- FuRong Laboratory, Changsha 410078, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha 410008, China
- Hunan Engineering Research Center for Intelligent Diagnosis and Treatment of Respiratory Disease, Changsha 410008, China
| | - Pinhua Pan
- Center of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha 410008, China; (S.H.); (F.L.)
- FuRong Laboratory, Changsha 410078, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha 410008, China
- Hunan Engineering Research Center for Intelligent Diagnosis and Treatment of Respiratory Disease, Changsha 410008, China
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Zhao J, Xu L, Lv L, Wang L, Wang X, Liang C, Wang C, Qiu Y, Pei X. Network pharmacology and in vivo and in vitro experiments to determine the mechanism behind the effects of Jiawei Yanghe decoction via TLR4/Myd88/NF-κB against mastitis. Heliyon 2023; 9:e21219. [PMID: 37964842 PMCID: PMC10641157 DOI: 10.1016/j.heliyon.2023.e21219] [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: 07/05/2023] [Revised: 09/15/2023] [Accepted: 10/18/2023] [Indexed: 11/16/2023] Open
Abstract
Background In the Qing dynasty, Yanghe decoction was as a therapeutic soup for effectively treating chronic inflammatory disorders. It was used as a therapeutic soup for effectively treating chronic inflammatory disorders. In the clinical use of Yanghe decoction, the adjustment of the medication for a variety of inflammatory diseases have therapeutic effect, including mastitis. Therefore, Jiawei Yanghe decoction (JWYHD) may be used to treat inflammatory breast diseases. Methods First, LM- and JWYHD-related components were retrieved from the database and analysis platform. Next, protein-protein interaction networks were constructed to screen the key targets, and gene ontology and Kyoto encyclopedia of gene and genome enrichment analyses were performed to predict the potential biological functions and mechanisms of JWYHD. Simultaneously, the JWYHD samples were collected and analyzed by UPLC-HRMS. Finally, in vivo and in vitro experiments were conducted to construct animal and cellular inflammation models of mastitis with LPS. Pathological changes in the mammary tissues were detected. Enzyme-linked immunosorbent assay, reverse transcription-polymerase chain reaction, and Western blotting was performed to determine the mRNA and protein levels of inflammatory cytokines and toll-like receptor 4/myeloid differentiation primary response 88/nuclear factor kappa B signaling pathway in the breast tissues to elucidate the potential underlying mechanisms of anti-mastitis effects of JWYHD from different aspects. Results In total, 103 compounds were detected in JWYHD by UPLC-HRMS. 691 active ingredients of JWYHD were screened by network pharmacology, and 47 LM-related targets were identified. The PPI network analysis of the targets revealed the 5 core targets. The KEGG enrichment results established the NF-κB signaling pathways as the core. After JWYHD intervention, low inflammatory enrichment and mild inflammatory damage in breast tissues were observed. Furthermore, JWYHD treatment affected mammary gland inflammatory cytokines and the TLR4/Myd88/NF-κB signaling pathway by considerably reducing the respective protein levels and gene expression; thus, JWYHD alleviated LM symptoms. Conclusions We hypothesized and demonstrated the anti-inflammatory effects of JWYHD by cytokine regulation via the TLR4/Myd88/NF-κB signaling pathway. In conclusion, JWYHD showed its potential in LM treatment and in treating other acute and chronic inflammatory diseases.
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Affiliation(s)
- Jing Zhao
- Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, 100029, China
| | - Liuyan Xu
- Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, 100029, China
| | - Lingyan Lv
- Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, 100029, China
| | - Liuyi Wang
- Xiamen University, Xiamen, 361102, China
| | - Xuan Wang
- Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, 100029, China
| | - Chen Liang
- Dongfang Hospital Beijing University of Chinese Medicine, Beijing, 100078, China
| | - Chunhui Wang
- Fangshan Hospital Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Yan Qiu
- Eye Institute of Xiamen University, Xiamen, 361102, China
| | - Xiaohua Pei
- Xiamen Hospital of Beijing University of Traditional Chinese Medicine, Xiamen, 361015, China
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25
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Alvarado-Peña N, Galeana-Cadena D, Gómez-García IA, Mainero XS, Silva-Herzog E. The microbiome and the gut-lung axis in tuberculosis: interplay in the course of disease and treatment. Front Microbiol 2023; 14:1237998. [PMID: 38029121 PMCID: PMC10643882 DOI: 10.3389/fmicb.2023.1237998] [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: 06/10/2023] [Accepted: 10/09/2023] [Indexed: 12/01/2023] Open
Abstract
Tuberculosis is a chronic infectious disease caused by Mycobacterium tuberculosis (MTB) that remains a significant global health challenge. The extensive use of antibiotics in tuberculosis treatment, disrupts the delicate balance of the microbiota in various organs, including the gastrointestinal and respiratory systems. This gut-lung axis involves dynamic interactions among immune cells, microbiota, and signaling molecules from both organs. The alterations of the microbiome resulting from anti-TB treatment can significantly influence the course of tuberculosis, impacting aspects such as complete healing, reinfection, and relapse. This review aims to provide a comprehensive understanding of the gut-lung axis in the context of tuberculosis, with a specific focus on the impact of anti-TB treatment on the microbiome.
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Affiliation(s)
- Néstor Alvarado-Peña
- Clínica de Tuberculosis, Instituto Nacional de Enfermedades Respiratorias “Ismael Cosío Villegas”, México City, Mexico
| | - David Galeana-Cadena
- Laboratorio de Inmunobiología y Genética, Instituto Nacional de Enfermedades Respiratorias, México City, Mexico
| | - Itzel Alejandra Gómez-García
- Laboratorio de Inmunobiología y Genética, Instituto Nacional de Enfermedades Respiratorias, México City, Mexico
- Tecnológico de Monterrey, Escuela de Medicina y Ciencias de la Salud, México City, Mexico
| | - Xavier Soberón Mainero
- Departamento de Ingeniería Celular y Biocatálisis, Instituto de Biotecnología, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
| | - Eugenia Silva-Herzog
- Laboratorio de Vinculación Científica, Facultad de Medicina-Universidad Nacional Autonoma de México-Instituto Nacional de Medicina Genomica, México City, Mexico
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26
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Hetta HF, Rashed ZI, Ramadan YN, Al-Kadmy IMS, Kassem SM, Ata HS, Nageeb WM. Phage Therapy, a Salvage Treatment for Multidrug-Resistant Bacteria Causing Infective Endocarditis. Biomedicines 2023; 11:2860. [PMID: 37893232 PMCID: PMC10604041 DOI: 10.3390/biomedicines11102860] [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: 09/18/2023] [Revised: 10/11/2023] [Accepted: 10/20/2023] [Indexed: 10/29/2023] Open
Abstract
Infective endocarditis (IE) is defined as an infection of the endocardium, or inner surface of the heart, most frequently affecting the heart valves or implanted cardiac devices. Despite its rarity, it has a high rate of morbidity and mortality. IE generally occurs when bacteria, fungi, or other germs from another part of the body, such as the mouth, spread through the bloodstream and attach to damaged areas in the heart. The epidemiology of IE has changed as a consequence of aging and the usage of implantable cardiac devices and heart valves. The right therapeutic routes must be assessed to lower complication and fatality rates, so this requires early clinical suspicion and a fast diagnosis. It is urgently necessary to create new and efficient medicines to combat multidrug-resistant bacterial (MDR) infections because of the increasing threat of antibiotic resistance on a worldwide scale. MDR bacteria that cause IE can be treated using phages rather than antibiotics to combat MDR bacterial strains. This review will illustrate how phage therapy began and how it is considered a powerful potential candidate for the treatment of MDR bacteria that cause IE. Furthermore, it gives a brief about all reported clinical trials that demonstrated the promising effect of phage therapy in combating resistant bacterial strains that cause IE and how it will become a hope in future medicine.
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Affiliation(s)
- Helal F. Hetta
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut 71515, Egypt;
| | - Zainab I. Rashed
- Department of Microbiology and Immunology, Faculty of Pharmacy, Assiut University, Assiut 71515, Egypt; (Z.I.R.); (Y.N.R.)
| | - Yasmin N. Ramadan
- Department of Microbiology and Immunology, Faculty of Pharmacy, Assiut University, Assiut 71515, Egypt; (Z.I.R.); (Y.N.R.)
| | - Israa M. S. Al-Kadmy
- Branch of Biotechnology, Department of Biology, College of Science, Mustansiriyah University, Baghdad P.O. Box 10244, Iraq
| | - Soheir M. Kassem
- Department of Internal Medicine and Critical Care, Faculty of Medicine, Assuit University, Assiut 71515, Egypt;
| | - Hesham S. Ata
- Department of Pathology, College of Medicine, Qassim University, Buraydah 51452, Qassim, Saudi Arabia;
| | - Wedad M. Nageeb
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt;
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27
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Abdill RJ, Graham SP, Rubinetti V, Albert FW, Greene CS, Davis S, Blekhman R. Integration of 168,000 samples reveals global patterns of the human gut microbiome. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.11.560955. [PMID: 37873416 PMCID: PMC10592789 DOI: 10.1101/2023.10.11.560955] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Understanding the factors that shape variation in the human microbiome is a major goal of research in biology. While other genomics fields have used large, pre-compiled compendia to extract systematic insights requiring otherwise impractical sample sizes, there has been no comparable resource for the 16S rRNA sequencing data commonly used to quantify microbiome composition. To help close this gap, we have assembled a set of 168,484 publicly available human gut microbiome samples, processed with a single pipeline and combined into the largest unified microbiome dataset to date. We use this resource, which is freely available at microbiomap.org, to shed light on global variation in the human gut microbiome. We find that Firmicutes, particularly Bacilli and Clostridia, are almost universally present in the human gut. At the same time, the relative abundance of the 65 most common microbial genera differ between at least two world regions. We also show that gut microbiomes in undersampled world regions, such as Central and Southern Asia, differ significantly from the more thoroughly characterized microbiomes of Europe and Northern America. Moreover, humans in these overlooked regions likely harbor hundreds of taxa that have not yet been discovered due to this undersampling, highlighting the need for diversity in microbiome studies. We anticipate that this new compendium can serve the community and enable advanced applied and methodological research.
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Affiliation(s)
- Richard J. Abdill
- Section of Genetic Medicine, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Samantha P. Graham
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, Minnesota, USA
| | - Vincent Rubinetti
- Department of Biomedical Informatics, University of Colorado School of Medicine, Aurora, CO, USA
- Center for Health Artificial Intelligence (CHAI), University of Colorado School of Medicine, Aurora, CO, USA
| | - Frank W. Albert
- Department of Genetics, Cell Biology, and Development, University of Minnesota, Minneapolis, Minnesota, USA
| | - Casey S. Greene
- Department of Biomedical Informatics, University of Colorado School of Medicine, Aurora, CO, USA
- Center for Health Artificial Intelligence (CHAI), University of Colorado School of Medicine, Aurora, CO, USA
| | - Sean Davis
- Department of Biomedical Informatics, University of Colorado School of Medicine, Aurora, CO, USA
- Center for Health Artificial Intelligence (CHAI), University of Colorado School of Medicine, Aurora, CO, USA
| | - Ran Blekhman
- Section of Genetic Medicine, Department of Medicine, University of Chicago, Chicago, Illinois, USA
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Di Lauro M, Guerriero C, Cornali K, Albanese M, Costacurta M, Mercuri NB, Di Daniele N, Noce A. Linking Migraine to Gut Dysbiosis and Chronic Non-Communicable Diseases. Nutrients 2023; 15:4327. [PMID: 37892403 PMCID: PMC10609600 DOI: 10.3390/nu15204327] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/02/2023] [Accepted: 10/07/2023] [Indexed: 10/29/2023] Open
Abstract
In the world, migraine is one of the most common causes of disability in adults. To date, there is no a single cause for this disorder, but rather a set of physio-pathogenic triggers in combination with a genetic predisposition. Among the factors related to migraine onset, a crucial role seems to be played by gut dysbiosis. In fact, it has been demonstrated how the intestine is able to modulate the central nervous system activities, through the gut-brain axis, and how gut dysbiosis can influence neurological pathologies, including migraine attacks. In this context, in addition to conventional pharmacological treatments for migraine, attention has been paid to an adjuvant therapeutic strategy based on different nutritional approaches and lifestyle changes able to positively modulate the gut microbiota composition. In fact, the restoration of the balance between the different gut bacterial species, the reconstruction of the gut barrier integrity, and the control of the release of gut-derived inflammatory neuropeptides, obtained through specific nutritional patterns and lifestyle changes, represent a possible beneficial additive therapy for many migraine subtypes. Herein, this review explores the bi-directional correlation between migraine and the main chronic non-communicable diseases, such as diabetes mellitus, arterial hypertension, obesity, cancer, and chronic kidney diseases, whose link is represented by gut dysbiosis.
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Affiliation(s)
- Manuela Di Lauro
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, RM, Italy; (M.D.L.); (C.G.); (K.C.); (M.A.); (N.B.M.); (N.D.D.)
| | - Cristina Guerriero
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, RM, Italy; (M.D.L.); (C.G.); (K.C.); (M.A.); (N.B.M.); (N.D.D.)
| | - Kevin Cornali
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, RM, Italy; (M.D.L.); (C.G.); (K.C.); (M.A.); (N.B.M.); (N.D.D.)
| | - Maria Albanese
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, RM, Italy; (M.D.L.); (C.G.); (K.C.); (M.A.); (N.B.M.); (N.D.D.)
- Neurology Unit, Headache Center, Tor Vergata University Hospital, 00133 Rome, RM, Italy
| | - Micaela Costacurta
- Department of Surgical Sciences, University of Rome Tor Vergata, 00133 Rome, RM, Italy;
| | - Nicola Biagio Mercuri
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, RM, Italy; (M.D.L.); (C.G.); (K.C.); (M.A.); (N.B.M.); (N.D.D.)
- Neurology Unit, Headache Center, Tor Vergata University Hospital, 00133 Rome, RM, Italy
| | - Nicola Di Daniele
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, RM, Italy; (M.D.L.); (C.G.); (K.C.); (M.A.); (N.B.M.); (N.D.D.)
- Fondazione Leonardo per le Scienze Mediche Onlus, Policlinico Abano, 35031 Abano Terme, PD, Italy
| | - Annalisa Noce
- Department of Systems Medicine, University of Rome Tor Vergata, 00133 Rome, RM, Italy; (M.D.L.); (C.G.); (K.C.); (M.A.); (N.B.M.); (N.D.D.)
- UOSD Nephrology and Dialysis, Policlinico Tor Vergata, 00133 Rome, RM, Italy
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Theodosiou AA, Jones CE, Read RC, Bogaert D. Microbiotoxicity: antibiotic usage and its unintended harm to the microbiome. Curr Opin Infect Dis 2023; 36:371-378. [PMID: 37466039 PMCID: PMC10487351 DOI: 10.1097/qco.0000000000000945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
PURPOSE OF REVIEW Antibiotic use is associated with development of antimicrobial resistance and dysregulation of the microbiome (the overall host microbial community). These changes have in turn been associated with downstream adverse health outcomes. This review analyses recent important publications in a rapidly evolving field, contextualizing the available evidence to assist clinicians weighing the potential risks of antibiotics on a patient's microbiome. RECENT FINDING Although the majority of microbiome research is observational, we highlight recent interventional studies probing the associations between antibiotic use, microbiome disruption, and ill-health. These studies include germ-free mouse models, antibiotic challenge in healthy human volunteers, and a phase III study of the world's first approved microbiome-based medicine. SUMMARY The growing body of relevant clinical and experimental evidence for antibiotic-mediated microbiome perturbation is concerning, although further causal evidence is required. Within the limits of this evidence, we propose the novel term 'microbiotoxicity' to describe the unintended harms of antibiotics on a patient's microbiome. We suggest a framework for prescribers to weigh microbiotoxic effects against the intended benefits of antibiotic use.
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Affiliation(s)
- Anastasia A. Theodosiou
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton
| | - Christine E. Jones
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton
| | - Robert C. Read
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton
| | - Debby Bogaert
- Centre for Inflammation Research, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
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Mc Loughlin J, Hinchion J. The gut microbiome and cardiac surgery an unusual symphony. Perfusion 2023; 38:1330-1339. [PMID: 35466814 DOI: 10.1177/02676591221097219] [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: 01/19/2023]
Abstract
The relationship between the gut microbiome and various organ systems has gained interest throughout the scientific community in recent times. The understanding of these complex relationships has greatly improved with clinical benefits now being seen. Cardiopulmonary bypass (CPB) is a form of extracorporeal circulation that provides circulatory and respiratory support during cardiac surgery. This physiological support facilitates a still and bloodless field facilitating operations on the heart to be performed. Through various mechanisms CPB results in a systemic inflammatory response syndrome (SIRS). This response can vary from mild hypotension to multiple organ failure. It remains difficult to predict the degree to which a patient will experience SIRS post-operatively. The relationship between the composition of the gut microbiome and inflammatory processes associated with disease has been seen across several fields including gastroenterology, neurology, psychiatry and cardiology. To date, minimal research has been undertaken to examine the impact the gut microbiome has on outcomes following cardiac surgery. This review paper explores the pathophysiology behind the SIRS response associated with CPB for cardiac surgery and the hypothesis that a correlation exists between a patients gut microbiome composition and the degree of inflammatory response experienced following cardiac surgery.
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Affiliation(s)
- Joseph Mc Loughlin
- Department of Cardiothoracic Surgery, Cork University Hospital, Cork, Ireland
| | - J Hinchion
- Department of Cardiothoracic Surgery, Cork University Hospital, Cork, Ireland
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31
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Rigas D, Grivas N, Nelli A, Gouva E, Skoufos I, Kormas K, Tzora A, Lagkouvardos I. Persistent Dysbiosis, Parasite Rise and Growth Impairment in Aquacultured European Seabass after Oxytetracycline Treatment. Microorganisms 2023; 11:2302. [PMID: 37764146 PMCID: PMC10534334 DOI: 10.3390/microorganisms11092302] [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: 08/11/2023] [Revised: 09/09/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
The use of antibiotics in open-water aquaculture is often unavoidable when faced with pathogens with high mortality rates. In addition, seasonal pathogen surges have become more common and more intense over the years. Apart from the apparent cost of antibiotic treatment, it has been observed that, in aquaculture practice, the surviving fish often display measurable growth impairment. To understand the role of gut microbiota on the observed growth impairment, in this study, we follow the incidence of Photobacterium damselae subsp. piscicida in a seabass commercial open-water aquaculture setting in Galaxidi (Greece). Fish around 10 months of age were fed with feed containing oxytetracycline (120 mg/kg/day) for twelve days, followed by a twelve-day withdrawal period, and another eighteen days of treatment. The fish were sampled 19 days before the start of the first treatment and one month after the end of the second treatment cycle. Sequencing of the 16S rRNA gene was used to measure changes in the gut microbiome. Overall, the gut microbiota community, even a month after treatment, was highly dysbiotic and characterized by very low alpha diversity. High abundances of alkalophilic bacteria in the post-antibiotic-treated fish indicated a rise in pH that was coupled with a significant increase in gut parasites. This study's results indicate that oxytetracycline (OTC) treatment causes persistent dysbiosis even one month after withdrawal and provides a more suitable environment for an increase in parasites. These findings highlight the need for interventions to restore a healthy and protective gut microbiome.
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Affiliation(s)
| | - Nikos Grivas
- Galaxidi Marine Farm S.A., 33200 Galaxidi, Greece
| | - Aikaterini Nelli
- Laboratory of Animal Health, Food Hygiene and Quality, Department of Agriculture, School of Agriculture, University of Ioannina, 47100 Arta, Greece
| | - Evangelia Gouva
- Laboratory of Animal Health, Food Hygiene and Quality, Department of Agriculture, School of Agriculture, University of Ioannina, 47100 Arta, Greece
| | - Ioannis Skoufos
- Laboratory of Animal Health, Food Hygiene and Quality, Department of Agriculture, School of Agriculture, University of Ioannina, 47100 Arta, Greece
| | - Konstantinos Kormas
- Department of Ichthyology and Aquatic Environment, University of Thessaly, 38446 Volos, Greece
- Agricultural Development Institute, University Research and Innovation Centre "IASON", Argonafton & Filellinon, 38221 Volos, Greece
| | - Athina Tzora
- Laboratory of Animal Health, Food Hygiene and Quality, Department of Agriculture, School of Agriculture, University of Ioannina, 47100 Arta, Greece
| | - Ilias Lagkouvardos
- Laboratory of Animal Health, Food Hygiene and Quality, Department of Agriculture, School of Agriculture, University of Ioannina, 47100 Arta, Greece
- Department of Microbiology and Microbial Pathogenesis, School of Medicine, University of Crete, 71500 Heraklion, Greece
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32
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Zhong X, Zhao J, Chen Y, Liao Y, Qin T, Zhang D, Lai X, Yang C, Wang Y, Zhang X, Yang M. High-Throughput Sequencing Reveals a Dynamic Bacterial Linkage between the Captive White Rhinoceros and Its Environment. Microbiol Spectr 2023; 11:e0092123. [PMID: 37409954 PMCID: PMC10434261 DOI: 10.1128/spectrum.00921-23] [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: 03/02/2023] [Accepted: 06/21/2023] [Indexed: 07/07/2023] Open
Abstract
Soil is an essential part of the animal habitat and has a large diversity of microbiota, while the animal body was colonized by a complex bacterial community; so far, the relationship between the animal host microbial community and the soil microbial ecosystem remains largely unknown. In this study, 15 white rhinoceros from three different captive grounds were selected and the bacterial community of the gut, skin, and environment of these rhinoceros were analyzed by 16S rRNA sequencing technology. Our results showed that Firmicutes and Bacteroidota were the predominant phyla in the gut microbiome, whereas skin and environment samples share similar microbiome profiles and are dominated by the phyla of Actinobacteriota, Chloroflexi, and Proteobacteria. Although the bacterial composition of the gut differs from that of the skin and environment, the Venn diagrams showed that there were 22 phyla and 186 genera shared by all the gut, skin, and environmental microbes in white rhinoceroses. Further cooccurrence network analysis indicated a bacterial linkage based on a complex interaction was established by the bacterial communities from the three different niches. In addition, beta diversity and bacterial composition analysis showed that both the captive ground and host ages induced shifts in the microbial composition of white rhinoceroses, which suggested that the bacterial linkage between the captive white rhinoceros and its environment is dynamic. Overall, our data contribute to a better understanding of the bacterial community of the captive white rhinoceros, especially for the relationship between the environment and animal bacterial communities. IMPORTANCE The white rhinoceros is one of the world's most endangered mammals. The microbial population plays a key role in animal health and welfare; however, studies regarding the microbial communities of the white rhinoceros are relatively limited. As the white rhinoceros has a common behavior of mud baths and thus is in direct contact with the environment, a relationship between the animal microbial community and the soil microbial ecosystem appears possible, but it remains unclear. Here, we described the characteristics and interaction of bacterial communities of the white rhinoceros in three different niches, including gut, skin, and environment. We also analyzed the effects of captive ground and age on the composition of the bacterial community. Our findings highlighted the relationship among the three niches and may have important implications for the conservation and management of this threatened species.
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Affiliation(s)
- Xiaojun Zhong
- College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang A&F University, Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Hangzhou, China
| | - Junyang Zhao
- College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang A&F University, Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Hangzhou, China
| | - Ying Chen
- Yunnan Shilin Longhui Wildlife Research Center Co., Ltd., Kunming, China
| | - Yanxin Liao
- College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang A&F University, Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Hangzhou, China
| | - Tao Qin
- State Key Laboratory of Subtropical Silviculture, College of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou, China
| | - Dingjiang Zhang
- Yunnan Shilin Longhui Wildlife Research Center Co., Ltd., Kunming, China
| | - Xiaogang Lai
- Yunnan Shilin Longhui Wildlife Research Center Co., Ltd., Kunming, China
| | - Chunlong Yang
- Yunnan Shilin Longhui Wildlife Research Center Co., Ltd., Kunming, China
| | - Yu Wang
- Yunnan Shilin Longhui Wildlife Research Center Co., Ltd., Kunming, China
| | - Xianfu Zhang
- College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang A&F University, Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Hangzhou, China
| | - Menghua Yang
- College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang A&F University, Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, Zhejiang Provincial Engineering Laboratory for Animal Health Inspection & Internet Technology, Hangzhou, China
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Sharma S, Pellett S, Morse SA. Special Issue: Gram-Positive Bacterial Toxins. Microorganisms 2023; 11:2054. [PMID: 37630614 PMCID: PMC10459523 DOI: 10.3390/microorganisms11082054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/27/2023] Open
Abstract
The Gram stain classifies most bacteria into one of two groups, Gram-negative or Gram-positive, based on the composition of their cell walls [...].
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Affiliation(s)
- Shashi Sharma
- Division of Microbiology, Office of Regulatory Science, CFSAN/US Food and Drug Administration, College Park, MD 20740, USA
| | - Sabine Pellett
- Department of Bacteriology, University of Wisconsin, 1550 Linden Drive, Madison, WI 53706, USA
| | - Stephen A Morse
- IHRC, Inc., 2 Ravinia Drive, Suite 1200, Atlanta, GA 30346, USA
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Akegbe H, Onyeaka H, Michael Mazi I, Alex Olowolafe O, Dolapo Omotosho A, Olatunji Oladunjoye I, Amuda Tajudeen Y, Seun Ofeh A. The need for Africa to develop capacity for vaccinology as a means of curbing antimicrobial resistance. Vaccine X 2023; 14:100320. [PMID: 37293248 PMCID: PMC10244683 DOI: 10.1016/j.jvacx.2023.100320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 03/08/2023] [Accepted: 05/26/2023] [Indexed: 06/10/2023] Open
Abstract
The high prevalence of infectious diseases in Africa, combined with weak healthcare systems, poor antimicrobial stewardship, and an unchecked drug supply chain, is steadily reversing the trend in the fight against infectious diseases in this part of the world, posing severe threats to antimicrobial resistance (AMR). AMR continuously evolves and threatens to undermine antimicrobial efficacy and undo advances against infectious diseases. This brewing pandemic is now recognized as a significant worldwide health danger, implicated in several cases of morbidity, mortality, and increasing healthcare costs. Vaccine technology has been proven to be the principal remedy to this imminent danger since it prevents microbial infections. However, since Africa cannot produce its vaccines, it relies on external sources and, as a result, it is significantly affected by vaccine nationalism, hoarding, and instabilities in global supply chains. This has further adversely impacted the ability of African governments to regulate rollouts, protect their citizens, and ultimately rejoin the global economy. This dependency is a severe challenge to Africa's health resilience, as it is unsustainable. Given the inevitability of potential global pandemics and the alarming incidences of multi-drug resistance infections reported daily, Africa must develop the capability to produce its vaccines. The review utilized a systematic search of academic databases and grey literature, as well as a manual search of relevant reports and articles. In this review, we outline the public health threats and concerns that AMR poses to Africans, and the hurdles and advances achieved in vaccine development over the years. We also highlight possible strategies, particularly collaborative efforts, that will accelerate vaccine production and ease the strain of infectious diseases and antimicrobial resistance in Africa. Key findings indicate that Africa has significant gaps in its vaccine manufacturing and distribution capacity, with only a few countries having the ability to produce vaccines. Additionally, existing vaccine production facilities are often outdated and require significant investment to meet international standards. The review also highlights successful initiatives in Africa, such as the mRNA vaccine hub and the African Vaccine Manufacturing Initiative, which have demonstrated the potential for building local vaccine manufacturing capacity. The study concludes that Africa needs to prioritize investment in vaccine research and development, regulatory capacity, and infrastructure to build a sustainable vaccine manufacturing ecosystem. Overall, this review emphasizes the urgent need for Africa to develop its vaccine manufacturing capacity to improve vaccine access and strengthen its ability to respond to future pandemics. The findings underscore the importance of collaboration between African governments, international organizations, and the private sector to build a resilient vaccine ecosystem in Africa.
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Affiliation(s)
- Hope Akegbe
- Department of Microbiology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
| | - Helen Onyeaka
- School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
| | - Ifeanyi Michael Mazi
- Department of Microbiology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
| | - Opeyemi Alex Olowolafe
- Department of Microbiology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
| | | | | | - Yusuf Amuda Tajudeen
- Department of Microbiology, Faculty of Life Sciences, University of Ilorin, Ilorin, Nigeria
| | - Augustine Seun Ofeh
- Department of Microbiology, Faculty of Science, Delta State University, Abraka, Nigeria
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Kalpana S, Lin WY, Wang YC, Fu Y, Wang HY. Alternate Antimicrobial Therapies and Their Companion Tests. Diagnostics (Basel) 2023; 13:2490. [PMID: 37568853 PMCID: PMC10417861 DOI: 10.3390/diagnostics13152490] [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: 06/30/2023] [Accepted: 07/14/2023] [Indexed: 08/13/2023] Open
Abstract
New antimicrobial approaches are essential to counter antimicrobial resistance. The drug development pipeline is exhausted with the emergence of resistance, resulting in unsuccessful trials. The lack of an effective drug developed from the conventional drug portfolio has mandated the introspection into the list of potentially effective unconventional alternate antimicrobial molecules. Alternate therapies with clinically explicable forms include monoclonal antibodies, antimicrobial peptides, aptamers, and phages. Clinical diagnostics optimize the drug delivery. In the era of diagnostic-based applications, it is logical to draw diagnostic-based treatment for infectious diseases. Selection criteria of alternate therapeutics in infectious diseases include detection, monitoring of response, and resistance mechanism identification. Integrating these diagnostic applications is disruptive to the traditional therapeutic development. The challenges and mitigation methods need to be noted. Applying the goals of clinical pharmacokinetics that include enhancing efficacy and decreasing toxicity of drug therapy, this review analyses the strong correlation of alternate antimicrobial therapeutics in infectious diseases. The relationship between drug concentration and the resulting effect defined by the pharmacodynamic parameters are also analyzed. This review analyzes the perspectives of aligning diagnostic initiatives with the use of alternate therapeutics, with a particular focus on companion diagnostic applications in infectious diseases.
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Affiliation(s)
- Sriram Kalpana
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan 333423, Taiwan;
| | - Wan-Ying Lin
- Department of Medicine, University of California San Diego, San Diego, CA 92093, USA;
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA;
- Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Yu-Chiang Wang
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA;
- Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA
| | - Yiwen Fu
- Department of Medicine, Kaiser Permanente Santa Clara Medical Center, Santa Clara, CA 95051, USA;
| | - Hsin-Yao Wang
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan 333423, Taiwan;
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA;
- Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02115, USA
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Pelosi U, Pintus R, Savasta S, Fanos V. Pulmonary Tuberculosis in Children: A Forgotten Disease? Microorganisms 2023; 11:1722. [PMID: 37512894 PMCID: PMC10385511 DOI: 10.3390/microorganisms11071722] [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: 03/15/2023] [Revised: 06/20/2023] [Accepted: 06/26/2023] [Indexed: 07/30/2023] Open
Abstract
Even today, tuberculosis in childhood is a disease that is often undiagnosed and undertreated. In the absence of therapy with antituberculosis drugs, children in the first years of life have a high degree of severe forms and mortality. In these children, symptoms are often not very specific and can easily be confused with other diseases of bacterial, viral or fungal etiology, making diagnosis more difficult. Nevertheless, the introduction of new diagnostic techniques has allowed a more rapid identification of the infection. Indeed, Interferon gamma release assay (IGRA) is preferred to the Mantoux, albeit with obvious limitations in children aged <2 years. While the Xpert Mtb/RIF Ultra test is recommended as an initial diagnostic investigation of the gastric aspirate and/or stools in children with signs and symptoms of pulmonary tuberculosis. The drugs used in the treatment of susceptible and resistant TB are the same as those used in adults but doses and combinations are different in the pediatric age. In children, brief therapy is preferable in both the latent infection and the active disease, as a significant reduction in side effects is obtained.
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Affiliation(s)
- Umberto Pelosi
- Pediatric Unit, Santa Barbara Hospital, 09016 Iglesias, Italy
| | - Roberta Pintus
- Neonatal Intensive Care Unit, Department of Surgical Sciences, University of Cagliari, AOU Cagliari, 09124 Cagliari, Italy
| | - Salvatore Savasta
- Department of Pediatrics and Rare Diseases, Ospedale Microcitemico Antonio Cao, University of Cagliari, 09124 Cagliari, Italy
| | - Vassilios Fanos
- Neonatal Intensive Care Unit, Department of Surgical Sciences, University of Cagliari, AOU Cagliari, 09124 Cagliari, Italy
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Ganina KK, Petrova NV, Tarasov SA, Epstein OI. Combined Drug with Antibacterial Effect Supports the Normal Intestinal Microflora. Bull Exp Biol Med 2023:10.1007/s10517-023-05806-1. [PMID: 37338753 DOI: 10.1007/s10517-023-05806-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Indexed: 06/21/2023]
Abstract
Widespread use of antibiotics leads to an imbalance of normal intestinal microflora and to the development of multidrug resistance. The problem can be solved by administration of the antibiotics in combination with the drugs that have an immunotropic effect. We studied the effect of the drug containing technologically processed affinity purified antibodies to IFNγ, CD4 receptor, β2-microglobulin of MHC class I, and β2-domain of MHC II combined with antibiotics on the composition of intestinal microflora of pigs and the total number of microbiome resistance genes. Using the methods of NGS sequencing and quantitative PCR, we found that the drug contributes to the maintenance of normal microflora and, consequently, to the symbiotic relationship of the host with microflora, and prevents the reproduction of pathogenic bacterial species. Analysis for the presence of the resistance genes of gastrointestinal microorganisms showed that the drug does not affect the qualitative and quantitative composition of these genes of the intestinal microbiome.
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Affiliation(s)
- K K Ganina
- LLC "MATERIA MEDICA HOLDING", Moscow, Russia.
| | - N V Petrova
- LLC "MATERIA MEDICA HOLDING", Moscow, Russia
- Research Institute of General Pathology and Pathophysiology, Moscow, Russia
| | - S A Tarasov
- LLC "MATERIA MEDICA HOLDING", Moscow, Russia
- Research Institute of General Pathology and Pathophysiology, Moscow, Russia
| | - O I Epstein
- LLC "MATERIA MEDICA HOLDING", Moscow, Russia
- Research Institute of General Pathology and Pathophysiology, Moscow, Russia
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38
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Arora P, Jain A, Kumar A. Phage design and directed evolution to evolve phage for therapy. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2023; 200:103-126. [PMID: 37739551 DOI: 10.1016/bs.pmbts.2023.03.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
Phage therapy or Phage treatment is the use of bacteriolysing phage in treating bacterial infections by using the viruses that infects and kills bacteria. This technique has been studied and practiced very long ago, but with the advent of antibiotics, it has been neglected. This foregone technique is now witnessing a revival due to development of bacterial resistance. Nowadays, with the awareness of genetic sequence of organisms, it is required that informed choices of phages have to be made for the most efficacious results. Furthermore, phages with the evolving genes are taken into consideration for the subsequent improvement in treating the patients for bacterial diseases. In addition, direct evolution methods are increasingly developing, since these are capable of creating new biological molecules having changed or unique activities, such as, improved target specificity, evolution of novel proteins with new catalytic properties or creation of nucleic acids that are capable of recognizing required pathogenic bacteria. This system is incorporates continuous evolution such as protein or genes are put under continuous evolution by providing continuous mutagenesis with least human intervention. Although, this system providing continuous directed evolution is very effective, it imposes some challenges due to requirement of heavy investment of time and resources. This chapter focuses on development of phage as a therapeutic agent against various bacteria causing diseases and it improvement using direct evolution of proteins and nucleic acids such that they target specific organisms.
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Affiliation(s)
- Priyancka Arora
- Department of Biotechnology, Faculty of Engineering and Technology, Rama University, Kanpur, Uttar Pradesh, India
| | - Avni Jain
- Department of Biotechnology, Faculty of Engineering and Technology, Rama University, Kanpur, Uttar Pradesh, India
| | - Ajay Kumar
- Department of Biotechnology, Faculty of Engineering and Technology, Rama University, Kanpur, Uttar Pradesh, India.
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Peng Q, Ma Z, Han Q, Xiang F, Wang L, Zhang Y, Zhao Y, Li J, Xian Y, Yuan Y. Characterization of bacteriophage vB_KleM_KB2 possessing high control ability to pathogenic Klebsiella pneumoniae. Sci Rep 2023; 13:9815. [PMID: 37330608 PMCID: PMC10276810 DOI: 10.1038/s41598-023-37065-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 06/15/2023] [Indexed: 06/19/2023] Open
Abstract
Klebsiella pneumoniae is a widespread pathogen of several human diseases. The emergence of multidrug-resistant K. pneumoniae makes the treatment of these diseases a significant challenge. The application of bacteriophages is a potential approach for dealing with the emergence of multidrug-resistant pathogenic bacteria. This study isolates a novel bacteriophage vB_KleM_KB2 that infects the multidrug-resistant clinical isolates of K. pneumoniae. The bacteriophage exhibits a short latent period of 10 min, and can effectively lyse the bacterium within 60 min. Notably, the bacteriophage can completely inhibit the growth of the host bacterium at the initial concentration of 107 CFU/mL with a low multiplicity of infection of 0.001, which proves its high lytic activity. Furthermore, the bacteriophage shows high environmental tolerances, which can facilitate the practical application of the bacteriophage. Analysis of the bacteriophage genome shows that the bacteriophage possesses a novel genome sequence and can represent a new bacteriophage genus. Considering the high lytic activity, short latent period, high stability, and novel genetic background, bacteriophage vB_KleM_KB2 enriches the bacteriophage library and provides a new alternative for controlling the diseases caused by multidrug-resistant pathogenic K. pneumoniae.
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Affiliation(s)
- Qin Peng
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Zimeng Ma
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Qing Han
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Fangfang Xiang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Lushuang Wang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Yibin Zhang
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Yuting Zhao
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Jianing Li
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Yaxin Xian
- Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China
| | - Yihui Yuan
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, China.
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40
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Lei EK, Ryan S, van Faassen H, Foss M, Robotham A, Baltat I, Fulton K, Henry KA, Chen W, Hussack G. Isolation and characterization of a VHH targeting the Acinetobacter baumannii cell surface protein CsuA/B. Appl Microbiol Biotechnol 2023:10.1007/s00253-023-12594-1. [PMID: 37284893 DOI: 10.1007/s00253-023-12594-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 04/18/2023] [Accepted: 05/15/2023] [Indexed: 06/08/2023]
Abstract
Acinetobacter baumannii is a Gram-negative bacterial pathogen that exhibits high intrinsic resistance to antimicrobials, with treatment often requiring the use of last-resort antibiotics. Antibiotic-resistant strains have become increasingly prevalent, underscoring a need for new therapeutic interventions. The aim of this study was to use A. baumannii outer membrane vesicles as immunogens to generate single-domain antibodies (VHHs) against bacterial cell surface targets. Llama immunization with the outer membrane vesicle preparations from four A. baumannii strains (ATCC 19606, ATCC 17961, ATCC 17975, and LAC-4) elicited a strong heavy-chain IgG response, and VHHs were selected against cell surface and/or extracellular targets. For one VHH, OMV81, the target antigen was identified using a combination of gel electrophoresis, mass spectrometry, and binding studies. Using these techniques, OMV81 was shown to specifically recognize CsuA/B, a protein subunit of the Csu pilus, with an equilibrium dissociation constant of 17 nM. OMV81 specifically bound to intact A. baumannii cells, highlighting its potential use as a targeting agent. We anticipate the ability to generate antigen-specific antibodies against cell surface A. baumannii targets could provide tools for further study and treatment of this pathogen. KEY POINTS: •Llama immunization with bacterial OMV preparations for VHH generation •A. baumannii CsuA/B, a pilus subunit, identified by mass spectrometry as VHH target •High-affinity and specific VHH binding to CsuA/B and A. baumannii cells.
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Affiliation(s)
- Eric K Lei
- Human Health Therapeutics Research Centre, National Research Council Canada, Ottawa, Ontario, Canada
| | - Shannon Ryan
- Human Health Therapeutics Research Centre, National Research Council Canada, Ottawa, Ontario, Canada
| | - Henk van Faassen
- Human Health Therapeutics Research Centre, National Research Council Canada, Ottawa, Ontario, Canada
| | - Mary Foss
- Human Health Therapeutics Research Centre, National Research Council Canada, Ottawa, Ontario, Canada
| | - Anna Robotham
- Human Health Therapeutics Research Centre, National Research Council Canada, Ottawa, Ontario, Canada
| | - Isabel Baltat
- Human Health Therapeutics Research Centre, National Research Council Canada, Ottawa, Ontario, Canada
| | - Kelly Fulton
- Human Health Therapeutics Research Centre, National Research Council Canada, Ottawa, Ontario, Canada
| | - Kevin A Henry
- Human Health Therapeutics Research Centre, National Research Council Canada, Ottawa, Ontario, Canada
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada
| | - Wangxue Chen
- Human Health Therapeutics Research Centre, National Research Council Canada, Ottawa, Ontario, Canada
- Department of Biology, Brock University, St. Catharines, Ontario, Canada
| | - Greg Hussack
- Human Health Therapeutics Research Centre, National Research Council Canada, Ottawa, Ontario, Canada.
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41
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Zaidi S, Ali K, Khan AU. It's all relative: analyzing microbiome compositions, its significance, pathogenesis and microbiota derived biofilms: Challenges and opportunities for disease intervention. Arch Microbiol 2023; 205:257. [PMID: 37280443 DOI: 10.1007/s00203-023-03589-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 05/06/2023] [Accepted: 05/18/2023] [Indexed: 06/08/2023]
Abstract
Concept of microorganisms has largely been perceived from their pathogenic view point. Nevertheless, it is being gradually revisited in terms of its significance to human health and now appears to be the most dominant force that shapes the immune system of the human body and also determines an individual's predisposition to diseases. Human inhabits bacterial diversity (which is predominant among all microbial communities in human body) occupying 0.3% of body mass, known as microbiota. On birth, a part of microbiota that child obtains is essentially a mother's legacy. So, the review was initiated with this critical topic of microbiotal inheritance. Since, each body site has distinct physiological specifications; therefore, they contain discrete microbiome composition that has been separately discussed along with dysbiosis-induced pathologies originating in different body organs. Factors affecting microbiome composition and may cause dysbiosis like antibiotics, delivery, feeding method etc. as well as the strategies that immune system adopts to prevent dysbiosis have been highlighted. We also tried to bring into attention the topic of dysbiosis induced biofilms, that enables cohort to survive stresses, evolve, disseminate and infection resurgence that is still in dormancy. Eventually, we put spotlight on microbiome significance in medical therapeutics. We didn't merely confine article to gut microbiota, that is being studied more extensively. Numerous community forms at diverse body sites are inter-related, and being exposed to awfully variable perturbations appear to be challenging to evaluate perturbation risks holistically. All aspects have been elaborately discussed to achieve a global depiction of human microbiota in order to meet urgent necessity for protocol standardisation. Demonstrates that environmental challenges (antibiotic use, alterations in diet, stress, smoking etc.) might cause dysbiosis i.e. transition of healthy microbiome composition to the one in which pathogenic microorganisms become more abundant, and eventually results in an infected state.
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Affiliation(s)
- Sahar Zaidi
- Medical Microbiology and Molecular Biology Laboratory, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, 202002, India
| | - Khursheed Ali
- Medical Microbiology and Molecular Biology Laboratory, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, 202002, India
| | - Asad U Khan
- Medical Microbiology and Molecular Biology Laboratory, Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, 202002, India.
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42
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Bicknell B, Liebert A, Borody T, Herkes G, McLachlan C, Kiat H. Neurodegenerative and Neurodevelopmental Diseases and the Gut-Brain Axis: The Potential of Therapeutic Targeting of the Microbiome. Int J Mol Sci 2023; 24:ijms24119577. [PMID: 37298527 DOI: 10.3390/ijms24119577] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 04/28/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
The human gut microbiome contains the largest number of bacteria in the body and has the potential to greatly influence metabolism, not only locally but also systemically. There is an established link between a healthy, balanced, and diverse microbiome and overall health. When the gut microbiome becomes unbalanced (dysbiosis) through dietary changes, medication use, lifestyle choices, environmental factors, and ageing, this has a profound effect on our health and is linked to many diseases, including lifestyle diseases, metabolic diseases, inflammatory diseases, and neurological diseases. While this link in humans is largely an association of dysbiosis with disease, in animal models, a causative link can be demonstrated. The link between the gut and the brain is particularly important in maintaining brain health, with a strong association between dysbiosis in the gut and neurodegenerative and neurodevelopmental diseases. This link suggests not only that the gut microbiota composition can be used to make an early diagnosis of neurodegenerative and neurodevelopmental diseases but also that modifying the gut microbiome to influence the microbiome-gut-brain axis might present a therapeutic target for diseases that have proved intractable, with the aim of altering the trajectory of neurodegenerative and neurodevelopmental diseases such as Alzheimer's disease, Parkinson's disease, multiple sclerosis, autism spectrum disorder, and attention-deficit hyperactivity disorder, among others. There is also a microbiome-gut-brain link to other potentially reversible neurological diseases, such as migraine, post-operative cognitive dysfunction, and long COVID, which might be considered models of therapy for neurodegenerative disease. The role of traditional methods in altering the microbiome, as well as newer, more novel treatments such as faecal microbiome transplants and photobiomodulation, are discussed.
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Affiliation(s)
- Brian Bicknell
- NICM Health Research Institute, University of Western Sydney, Westmead, NSW 2145, Australia
| | - Ann Liebert
- NICM Health Research Institute, University of Western Sydney, Westmead, NSW 2145, Australia
- Faculty of Medicine and Health, University of Sydney, Camperdown, NSW 2006, Australia
- Department of Governance and Research, Sydney Adventist Hospital, Wahroonga, NSW 2076, Australia
| | - Thomas Borody
- Centre for Digestive Diseases, Five Dock, NSW 2046, Australia
| | - Geoffrey Herkes
- Department of Governance and Research, Sydney Adventist Hospital, Wahroonga, NSW 2076, Australia
| | - Craig McLachlan
- Centre for Healthy Futures, Torrens University Australia, Ultimo, NSW 2007, Australia
| | - Hosen Kiat
- NICM Health Research Institute, University of Western Sydney, Westmead, NSW 2145, Australia
- Centre for Healthy Futures, Torrens University Australia, Ultimo, NSW 2007, Australia
- Macquarie Medical School, Macquarie University, Macquarie Park, NSW 2109, Australia
- ANU College of Health and Medicine, Australian National University, Canberra, ACT 2601, Australia
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43
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Mosaddad SA, Mahootchi P, Safari S, Rahimi H, Aghili SS. Interactions between systemic diseases and oral microbiota shifts in the aging community: A narrative review. J Basic Microbiol 2023. [PMID: 37173818 DOI: 10.1002/jobm.202300141] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 04/23/2023] [Accepted: 04/29/2023] [Indexed: 05/15/2023]
Abstract
As a gateway to general health and a diverse microbial habitat, the oral cavity is colonized by numerous microorganisms such as bacteria, fungi, viruses, and archaea. Oral microbiota plays an essential role in preserving oral health. Besides, the oral cavity also significantly contributes to systemic health. Physiological aging influences all body systems, including the oral microbial inhabitants. The cited effect can cause diseases by forming dysbiotic communities. Since it has been demonstrated that microbial dysbiosis could disturb the symbiosis state between the host and the resident microorganism, shifting the condition toward a more pathogenic one, this study investigated how the oral microbial shifts in aging could associate with the development or progression of systemic diseases in older adults. The current study focused on the interactions between variations in the oral microbiome and prevalent diseases in older adults, including diabetes mellitus, Sjögren's syndrome, rheumatoid arthritis, pulmonary diseases, cardiovascular diseases, oral candidiasis, Parkinson's disease, Alzheimer's disease, and glaucoma. Underlying diseases can dynamically modify the oral ecology and the composition of its resident oral microbiome. Clinical, experimental, and epidemiological research suggests the associations of systemic disorders with bacteremia and inflammation after oral microbial changes in older adults.
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Affiliation(s)
- Seyed Ali Mosaddad
- Student Research Committee, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Pegah Mahootchi
- Department of Oral and Maxillofacial Diseases, School of Dentistry, Ahvaz Jundishapur University of Medical Science, Ahvaz, Iran
| | - Sajedeh Safari
- Department of Prosthodontics, Islamic Azad University, Tehran, Iran
| | - Hussein Rahimi
- Student Research Committee, School of Dentistry, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Seyedeh Sara Aghili
- Student Research Committee, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
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44
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Merrick B, Sergaki C, Edwards L, Moyes DL, Kertanegara M, Prossomariti D, Shawcross DL, Goldenberg SD. Modulation of the Gut Microbiota to Control Antimicrobial Resistance (AMR)-A Narrative Review with a Focus on Faecal Microbiota Transplantation (FMT). Infect Dis Rep 2023; 15:238-254. [PMID: 37218816 DOI: 10.3390/idr15030025] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/19/2023] [Accepted: 05/05/2023] [Indexed: 05/24/2023] Open
Abstract
Antimicrobial resistance (AMR) is one of the greatest challenges facing humanity, causing a substantial burden to the global healthcare system. AMR in Gram-negative organisms is particularly concerning due to a dramatic rise in infections caused by extended-spectrum beta-lactamase and carbapenemase-producing Enterobacterales (ESBL and CPE). These pathogens have limited treatment options and are associated with poor clinical outcomes, including high mortality rates. The microbiota of the gastrointestinal tract acts as a major reservoir of antibiotic resistance genes (the resistome), and the environment facilitates intra and inter-species transfer of mobile genetic elements carrying these resistance genes. As colonisation often precedes infection, strategies to manipulate the resistome to limit endogenous infections with AMR organisms, as well as prevent transmission to others, is a worthwhile pursuit. This narrative review presents existing evidence on how manipulation of the gut microbiota can be exploited to therapeutically restore colonisation resistance using a number of methods, including diet, probiotics, bacteriophages and faecal microbiota transplantation (FMT).
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Affiliation(s)
- Blair Merrick
- Centre for Clinical Infection and Diagnostics Research, Guy's and St Thomas' NHS Foundation Trust, King's College, London SE1 7EH, UK
| | - Chrysi Sergaki
- Diagnostics R&D, Medicines and Healthcare Products Regulatory Agency (MHRA), Potters Bar EN6 3QG, UK
| | - Lindsey Edwards
- School of Immunology and Microbial Sciences, Institute of Liver Studies, Faculty of Life Sciences and Medicine, King's College, London SE1 1UL, UK
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London SE5 9RS, UK
| | - David L Moyes
- Centre for Host-Microbiome Interactions, Faculty of Dentistry, Oral and Craniofacial Sciences, King's College, London SE1 1UK, UK
| | - Michael Kertanegara
- Centre for Clinical Infection and Diagnostics Research, Guy's and St Thomas' NHS Foundation Trust, King's College, London SE1 7EH, UK
| | - Désirée Prossomariti
- Centre for Clinical Infection and Diagnostics Research, Guy's and St Thomas' NHS Foundation Trust, King's College, London SE1 7EH, UK
| | - Debbie L Shawcross
- School of Immunology and Microbial Sciences, Institute of Liver Studies, Faculty of Life Sciences and Medicine, King's College, London SE1 1UL, UK
- Institute of Liver Studies, King's College Hospital NHS Foundation Trust, London SE5 9RS, UK
| | - Simon D Goldenberg
- Centre for Clinical Infection and Diagnostics Research, Guy's and St Thomas' NHS Foundation Trust, King's College, London SE1 7EH, UK
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Dar SH, Maniya MT, Merza N, Musheer A, Zahid M, Ahmed F, Shurjeel Q, Qazi S, Ahmed A, Shah H, Zafar A, Iqbal AZ, Khan SF, Rizwan T, Ligresti R. The Association of Antibiotic Exposure with New-Onset Inflammatory Bowel Disease: A Systematic Review and Meta-Analysis. Clin Res Hepatol Gastroenterol 2023; 47:102129. [PMID: 37116651 DOI: 10.1016/j.clinre.2023.102129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 04/16/2023] [Accepted: 04/19/2023] [Indexed: 04/30/2023]
Abstract
INTRODUCTION The role of antibiotics in the development of inflammatory bowel disease (IBD) remains controversial, primarily due to conflicting data from individual studies. We conduct a systematic review and meta-analysis to study the effect of antibiotic exposure on IBD development. METHODOLOGY The MEDLINE and Cochrane CENTRAL databases were queried from their inception to April 2021 for published articles studying the association between antibiotic exposure and new-onset IBD. Our analysis was stratified by timing of antibiotic exposure - exposure in childhood and any lifetime exposure. Adjusted odds ratios (ORs) and corresponding 95% confidence intervals (CIs) from each study were pooled using a random-effects model. RESULTS 10 case-control studies and 2 cohort studies (N=29,880 IBD patients and N=715,548 controls) were included. Patients with Crohn's Disease (CD), compared with controls, were associated significantly with antibiotic exposure in childhood and any lifetime exposure to antibiotics (OR 1.52 [1.23-1.87]; p<0.00001). Patients with Ulcerative Colitis (UC), compared with controls, reported non-significant association with antibiotic exposure in childhood and any lifetime exposure. (OR 1.11 [0.93-1.33]; p=0.25) CONCLUSION: This meta-analysis suggests that exposure to antibiotics significantly increases the odds of developing CD and IBD in general. These findings re-emphasize the importance of cautious and judicious use of antibiotics.
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Affiliation(s)
- Sophia Haroon Dar
- Department of Medicine, Long Island Jewish Medical Center, Queens, New York, USA.
| | | | - Nooraldin Merza
- Department of Internal Medicine, University of Toledo, Ohio, USA
| | - Adeena Musheer
- Department of Medicine, Dow University of Health Sciences, Karachi, Pakistan
| | - Mariyam Zahid
- Department of Medicine, Dow University of Health Sciences, Karachi, Pakistan
| | - Furqan Ahmed
- Department of Medicine, Dow University of Health Sciences, Karachi, Pakistan
| | - Qazi Shurjeel
- Department of Medicine, Dow University of Health Sciences, Karachi, Pakistan
| | - Sana Qazi
- Department of Medicine, Dow University of Health Sciences, Karachi, Pakistan
| | - Aymen Ahmed
- Department of Medicine, Dow University of Health Sciences, Karachi, Pakistan
| | - Hamza Shah
- Department of Medicine, Dow University of Health Sciences, Karachi, Pakistan
| | - Adnan Zafar
- Department of Medicine, CMH Lahore Medical College, Lahore, Pakistan
| | - Arsalan Zafar Iqbal
- Department of Medicine, FMH of College of Medicine and Dentistry, Lahore, Pakistan
| | - Shah Fahad Khan
- Department of Medicine, Dow University of Health Sciences, Karachi, Pakistan
| | - Tehlil Rizwan
- Department of Medicine, AMITA Health Saint Joseph Hospital, Chicago, Illinois, USA
| | - Rosario Ligresti
- Hackensack University School of Medicine, Medical Director, National Pancreas Foundation, Hackensack University Medical Center, Hackensack, NJ
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46
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Hitchcock NM, Devequi Gomes Nunes D, Shiach J, Valeria Saraiva Hodel K, Dantas Viana Barbosa J, Alencar Pereira Rodrigues L, Coler BS, Botelho Pereira Soares M, Badaró R. Current Clinical Landscape and Global Potential of Bacteriophage Therapy. Viruses 2023; 15:v15041020. [PMID: 37113000 PMCID: PMC10146840 DOI: 10.3390/v15041020] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/18/2023] [Accepted: 04/19/2023] [Indexed: 04/29/2023] Open
Abstract
In response to the global spread of antimicrobial resistance, there is an increased demand for novel and innovative antimicrobials. Bacteriophages have been known for their potential clinical utility in lysing bacteria for almost a century. Social pressures and the concomitant introduction of antibiotics in the mid-1900s hindered the widespread adoption of these naturally occurring bactericides. Recently, however, phage therapy has re-emerged as a promising strategy for combatting antimicrobial resistance. A unique mechanism of action and cost-effective production promotes phages as an ideal solution for addressing antibiotic-resistant bacterial infections, particularly in lower- and middle-income countries. As the number of phage-related research labs worldwide continues to grow, it will be increasingly important to encourage the expansion of well-developed clinical trials, the standardization of the production and storage of phage cocktails, and the advancement of international collaboration. In this review, we discuss the history, benefits, and limitations of bacteriophage research and its current role in the setting of addressing antimicrobial resistance with a specific focus on active clinical trials and case reports of phage therapy administration.
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Affiliation(s)
| | - Danielle Devequi Gomes Nunes
- SENAI Institute of Innovation (ISI) in Health Advanced Systems, University Center SENAI/CIMATEC, Salvador 41650-010, BA, Brazil
- Gonçalo Moniz Institute, FIOCRUZ, Salvador 40291-710, BA, Brazil
| | - Job Shiach
- School of Medicine, University of California San Diego, San Diego, CA 92093, USA
| | - Katharine Valeria Saraiva Hodel
- SENAI Institute of Innovation (ISI) in Health Advanced Systems, University Center SENAI/CIMATEC, Salvador 41650-010, BA, Brazil
| | - Josiane Dantas Viana Barbosa
- SENAI Institute of Innovation (ISI) in Health Advanced Systems, University Center SENAI/CIMATEC, Salvador 41650-010, BA, Brazil
| | | | - Brahm Seymour Coler
- Elson S. Floyd College of Medicine, Washington State University, Spokane, WA 99202, USA
| | - Milena Botelho Pereira Soares
- SENAI Institute of Innovation (ISI) in Health Advanced Systems, University Center SENAI/CIMATEC, Salvador 41650-010, BA, Brazil
- Gonçalo Moniz Institute, FIOCRUZ, Salvador 40291-710, BA, Brazil
| | - Roberto Badaró
- SENAI Institute of Innovation (ISI) in Health Advanced Systems, University Center SENAI/CIMATEC, Salvador 41650-010, BA, Brazil
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47
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Woo AYM, Aguilar Ramos MA, Narayan R, Richards-Corke KC, Wang ML, Sandoval-Espinola WJ, Balskus EP. Targeting the human gut microbiome with small-molecule inhibitors. NATURE REVIEWS. CHEMISTRY 2023; 7:319-339. [PMID: 37117817 DOI: 10.1038/s41570-023-00471-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/20/2023] [Indexed: 04/30/2023]
Abstract
The human gut microbiome is a complex microbial community that is strongly linked to both host health and disease. However, the detailed molecular mechanisms underlying the effects of these microorganisms on host biology remain largely uncharacterized. The development of non-lethal, small-molecule inhibitors that target specific gut microbial activities enables a powerful but underutilized approach to studying the gut microbiome and a promising therapeutic strategy. In this Review, we will discuss the challenges of studying this microbial community, the historic use of small-molecule inhibitors in microbial ecology, and recent applications of this strategy. We also discuss the evidence suggesting that host-targeted drugs can affect the growth and metabolism of gut microbes. Finally, we address the issues of developing and implementing microbiome-targeted small-molecule inhibitors and define important future directions for this research.
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Affiliation(s)
- Amelia Y M Woo
- Harvard University, Department of Chemistry and Chemical Biology, Cambridge, MA, USA
| | | | - Rohan Narayan
- Harvard University, Department of Chemistry and Chemical Biology, Cambridge, MA, USA
| | | | - Michelle L Wang
- Harvard University, Department of Chemistry and Chemical Biology, Cambridge, MA, USA
| | - Walter J Sandoval-Espinola
- Harvard University, Department of Chemistry and Chemical Biology, Cambridge, MA, USA
- Universidad Nacional de Asunción, Facultad de Ciencias Exactas y Naturales, Departamento de Biotecnología, Laboratorio de Biotecnología Microbiana, San Lorenzo, Paraguay
| | - Emily P Balskus
- Harvard University, Department of Chemistry and Chemical Biology, Cambridge, MA, USA.
- Howard Hughes Medical Institute, Harvard University, Cambridge, MA, USA.
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48
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Xu J, Liang J, Chen W, Wen X, Zhang N, Ma B, Zou Y, Mi J, Wang Y, Liao X, Wu Y. Doxycycline Attenuates Pig Intestinal Microbial Interactions and Changes Microbial Metabolic Pathways. Animals (Basel) 2023; 13:ani13081293. [PMID: 37106856 PMCID: PMC10135356 DOI: 10.3390/ani13081293] [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: 02/12/2023] [Revised: 03/31/2023] [Accepted: 04/03/2023] [Indexed: 04/29/2023] Open
Abstract
Doxycycline is a therapeutic veterinary antibiotic commonly used in pig breeding. In this study, 27 fattening pigs of 33.5 ± 0.72 kg were divided equally into 3 groups. Doxycycline at 0, 3, and 5 mg/kg body weight was added to the feed in groups CK, L and H. The medication and withdrawal periods were set at 5 and 28 days. The results showed that the doxycycline average concentrations in groups L and H during the medication period were 117.63 ± 13.54 and 202.03 ± 24.91 mg/kg dry matter, respectively. Doxycycline levels were lower than the detection limit after 20 days. Doxycycline did not affect the diversity of the intestinal microbial community structure. The relative abundances of Streptococcus were significantly higher in treatment groups than that in group CK, and Alishewanella, Vagococcus, Cloacibacterium, and Campylobacter abundances were significantly positively correlated with doxycycline concentration. Interestingly, the microbiota cooccurrence network suggested that high doxycycline concentration weakened the interactions among bacteria until day 33. Functional prediction showed that doxycycline significantly altered metabolic pathways related to the cell membrane. The results revealed that the use of doxycycline during pig breeding can affect bacterial abundance during the withdrawal period, and it may affect interactions among bacteria and change the intestinal metabolic pathways.
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Affiliation(s)
- Jiaojiao Xu
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China
| | - Jiadi Liang
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China
| | - Wenjun Chen
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China
| | - Xin Wen
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China
| | - Na Zhang
- Foshan Customs Comprehensive Technology Center, Foshan 528200, China
| | - Baohua Ma
- Foshan Customs Comprehensive Technology Center, Foshan 528200, China
| | - Yongde Zou
- Foshan Customs Comprehensive Technology Center, Foshan 528200, China
| | - Jiandui Mi
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China
| | - Yan Wang
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China
| | - Xindi Liao
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China
| | - Yinbao Wu
- Guangdong Laboratory for Lingnan Modern Agriculture, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming 525000, China
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Luo B, Su JY, Wang YN, Guan L, Dong KS, Niu HJ, Shen SF, Li Y. Shewanella subflava sp. nov., a novel multi-resistant bacterium, isolated from the estuary of the Fenhe River into the Yellow River. Antonie Van Leeuwenhoek 2023; 116:511-519. [PMID: 37022511 DOI: 10.1007/s10482-023-01829-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 03/29/2023] [Indexed: 04/07/2023]
Abstract
A aerobic, gram-negative, rod-shaped and polar-flagellum bacterial strain, designated as FYR11-62T, was isolated from the estuary of the Fenhe River into the Yellow River in Shanxi Province, China. The isolate was able to grow at 4-37 °C (optimum, 25 °C), pH 5.5-9.5 (optimum, pH 7.5) and in the presence of 0-7.0% (w/v) NaCl (optimum, 1.0% NaCl). Phylogenetic analyses based on 16S rRNA genes and 1597 single-copy orthologous clusters indicated that strain FYR11-62T affiliated with the genus Shewanella and shared the highest 16S rRNA gene sequence similarity to Shewanella aestuarii SC18T (98.3%) and Shewanella gaetbuli TF-27T (97.3%), respectively. The major fatty acids were summed feature 3 (C16:1 ω7c and/or C16:1 ω6c), C16:0 and iso-C15:0. The major polar lipids were phosphatidylethanolamine and phosphatidylglycerol. The main quinones were Q-7 and Q-8. The genomic DNA G + C content was 41.6%. Gene annotation showed that strain FYR11-62T possessed 30 antibiotic resistance genes, implying its multiple antidrug resistance. The average nucleotide identity and digital DNA-DNA hybridization values between strain FYR11-62T and its closely related species were all below the thresholds for species delineation. The phylogenetic position together with the results of the analysis of morphological, physiological and genomic features support the classification of strain FYR11-62T (= MCCC 1K07242T = KCTC 92244T) as a novel species of the genus Shewanella, for which the name Shewanella subflava sp. nov. is proposed.
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Affiliation(s)
- Bi Luo
- Financial Assets Department, Shanxi Agricultural University, Taigu, 030801, China
| | - Jing-Yun Su
- College of Life Sciences, Shanxi Agricultural University, Taigu, 030801, China
| | - Ya-Nan Wang
- College of Life Sciences, Shanxi Agricultural University, Taigu, 030801, China
| | - Li Guan
- College of Life Sciences, Shanxi Agricultural University, Taigu, 030801, China
| | - Kai-Shi Dong
- College of Life Sciences, Shanxi Agricultural University, Taigu, 030801, China
| | - Hui-Jing Niu
- College of Animal Science, Shanxi Agricultural University, Taigu, 030801, China
| | - Shao-Fei Shen
- College of Life Sciences, Shanxi Agricultural University, Taigu, 030801, China.
| | - Yi Li
- College of Life Sciences, Shanxi Agricultural University, Taigu, 030801, China.
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50
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Birmann PT, Casaril AM, Pesarico AP, Rodrigues RR, Conceição FR, Sousa FSS, Collares T, Seixas FK, Savegnago L. Komagataella pastoris KM71H Mitigates Depressive-Like Phenotype, Preserving Intestinal Barrier Integrity and Modulating the Gut Microbiota in Mice. Mol Neurobiol 2023; 60:4017-4029. [PMID: 37016046 DOI: 10.1007/s12035-023-03326-7] [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: 08/22/2022] [Accepted: 03/20/2023] [Indexed: 04/06/2023]
Abstract
The role of intestinal microbiota in the genesis of mental health has received considerable attention in recent years, given that probiotics are considered promising therapeutic agents against major depressive disorder. Komagataella pastoris KM71H is a yeast with probiotic properties and antidepressant-like effects in animal models of depression. Hence, we evaluated the antidepressant-like effects of K. pastoris KM71H in a model of antibiotic-induced intestinal dysbiosis in male Swiss mice. The mice received clindamycin (200 μg, intraperitoneal) and, after 24 h, were treated with K. pastoris KM71H at a dose of 8 log CFU/animal by intragastric administration (ig) or PBS (vehicle, ig) for 14 consecutive days. Afterward, the animals were subjected to behavioral tests and biochemical analyses. Our results showed that K. pastoris KM71H administration decreased the immobility time in the tail suspension test and increased grooming activity duration in the splash test in antibiotic-treated mice, thereby characterizing its antidepressant-like effect. We observed that these effects of K. pastoris KM71H were accompanied by the modulation of the intestinal microbiota, preservation of intestinal barrier integrity, and restoration of the mRNA levels of occludin, zonula occludens-1, zonula occludens-2, and toll-like receptor-4 in the small intestine, and interleukin-1β in the hippocampi of mice. Our findings provide solid evidence to support the development of K. pastoris KM71H as a new probiotic with antidepressant-like effects.
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Affiliation(s)
- Paloma T Birmann
- Neurobiotechnology Research Group, Graduate Program in Biotechnology, Technologic Development Center, Federal University of Pelotas, (UFPel), Pelotas, RS, CEP 96010-900, Brazil
| | - Angela M Casaril
- Neurobiotechnology Research Group, Graduate Program in Biotechnology, Technologic Development Center, Federal University of Pelotas, (UFPel), Pelotas, RS, CEP 96010-900, Brazil
| | - Ana Paula Pesarico
- Neurobiotechnology Research Group, Graduate Program in Biotechnology, Technologic Development Center, Federal University of Pelotas, (UFPel), Pelotas, RS, CEP 96010-900, Brazil
| | - Rafael R Rodrigues
- Applied Immunology Laboratory, Graduate Program in Biotechnology, Technological Development Center, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Fabricio R Conceição
- Applied Immunology Laboratory, Graduate Program in Biotechnology, Technological Development Center, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Fernanda Severo Sabedra Sousa
- Molecular and Cellular Oncology Research Group and Functional Genomics Laboratory, Graduate Program in Biotechnology, Technological Development Center, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Tiago Collares
- Molecular and Cellular Oncology Research Group and Functional Genomics Laboratory, Graduate Program in Biotechnology, Technological Development Center, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Fabiana K Seixas
- Molecular and Cellular Oncology Research Group and Functional Genomics Laboratory, Graduate Program in Biotechnology, Technological Development Center, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Lucielli Savegnago
- Neurobiotechnology Research Group, Graduate Program in Biotechnology, Technologic Development Center, Federal University of Pelotas, (UFPel), Pelotas, RS, CEP 96010-900, Brazil.
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