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Gallacher DJ, Zhang L, Aboklaish AF, Mitchell E, Wach R, Marchesi JR, Kotecha S. Baseline azithromycin resistance in the gut microbiota of preterm born infants. Pediatr Res 2024; 95:205-212. [PMID: 37550487 PMCID: PMC10798878 DOI: 10.1038/s41390-023-02743-7] [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: 01/10/2023] [Revised: 07/08/2023] [Accepted: 07/10/2023] [Indexed: 08/09/2023]
Abstract
BACKGROUND Macrolides, including azithromycin, are increasingly used in preterm-born infants to treat Ureaplasma infections. The baseline carriage of macrolide resistance genes in the preterm stool microbiota is unknown. OBJECTIVES Identify carriage of azithromycin resistant bacteria and the incidence of macrolide resistant genes. METHODS Azithromycin resistant bacteria were isolated from serial stool samples obtained from preterm infants (≤32 weeks' gestation) by culturing aerobically/anaerobically, in the presence/absence of azithromycin. Using quantitative PCR, we targeted 6 common macrolide resistance genes (erm(A), erm(B), erm(C), erm(F), mef(A/E), msr(A)) in DNA extracted from selected bacteria resistant to azithromycin. RESULTS From 89 stool samples from 37 preterm-born infants, 93.3% showed bacterial growth in aerobic or anaerobic conditions. From the 280 azithromycin resistant isolates that were identified, Staphylococcus (75%) and Enterococcus (15%) species dominated. Macrolide resistance genes were identified in 91% of resistant isolates: commonest were erm(C) (46% of isolates) and msr(A) (40%). Multiple macrolide resistance genes were identified in 18% of isolates. CONCLUSION Macrolide resistance is common in the gut microbiota of preterm-born infants early in life, most likely acquired from exposure to the maternal microbiota. It will be important to assess modulation of macrolide resistance, if macrolide treatment becomes routine in the management of preterm infants. IMPACT STATEMENT Azithromycin resistance is present in the stool microbiota in the first month of life in preterm infants 91% of azithromycin resistant bacteria carried at least one of 6 common macrolide resistant genes Increasing use of macrolides in the preterm population makes this an important area of study.
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Affiliation(s)
- David J Gallacher
- Neonatal Unit, University Hospital of Wales, Cardiff, UK
- Department of Child Health, Cardiff University School of Medicine, Cardiff, UK
| | - Lei Zhang
- Department of Child Health, Cardiff University School of Medicine, Cardiff, UK
| | - Ali F Aboklaish
- Department of Child Health, Cardiff University School of Medicine, Cardiff, UK
| | - Emma Mitchell
- Department of Child Health, Cardiff University School of Medicine, Cardiff, UK
| | | | - Julian R Marchesi
- Division of Digestive Diseases, Faculty of Medicine, Imperial College London, London, UK
| | - Sailesh Kotecha
- Department of Child Health, Cardiff University School of Medicine, Cardiff, UK.
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Terveer EM, Vendrik KE, Ooijevaar RE, Lingen EV, Boeije-Koppenol E, Nood EV, Goorhuis A, Bauer MP, van Beurden YH, Dijkgraaf MG, Mulder CJ, Vandenbroucke-Grauls CM, Seegers JF, van Prehn J, Verspaget HW, Kuijper EJ, Keller JJ. Faecal microbiota transplantation for Clostridioides difficile infection: Four years' experience of the Netherlands Donor Feces Bank. United European Gastroenterol J 2020; 8:1236-1247. [PMID: 32990503 PMCID: PMC7724536 DOI: 10.1177/2050640620957765] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The Netherlands Donor Feces Bank provides standardized ready-to-use donor faecal suspensions for faecal microbiota transplantation treatment of patients with recurrent Clostridioides difficile infection. OBJECTIVE The purpose of this study was evaluation of safety, feasibility and outcome of faecal microbiota transplantation facilitated by a national stool bank. METHODS The methods used included: observational cohort study of donors and recipients of faecal suspensions; assessment of donor screening and patient selection performed by an expert panel of medical microbiologists, gastroenterologists and infectious disease specialists; and patient outcome evaluated at different timepoints after faecal microbiota transplantation. RESULTS Of 871 volunteers who registered as a potential faeces donor, 16 (2%) became active donors. Nine donors stopped or were excluded after a mean donation period of 5.7 months. In 2016-2019, 47 (27%) of 176 requests for faecal microbiota transplantations were deemed not indicated by the expert panel. In total, 129 patients with recurrent C. difficile infection were treated with 143 faecal suspensions in 40 different hospitals. The cure rate at two months after a single infusion was 89% (107/120). Of 84 patients, long-term follow-up (median 42 weeks) was available and sustained cure was achieved in 61 (73%). Early C. difficile infection relapses (within two months after faecal microbiota transplantation) and late recurrences (after more than two months) occurred more frequently in patients who received non-C. difficile antibiotics within three weeks after faecal microbiota transplantation and in moderately to severely immunocompromised patients. Of 21 patients with C. difficile infection after faecal microbiota transplantation, 14 were cured with anti-C. difficile antibiotics and seven with a second transplantation. No faecal microbiota transplantation-related serious adverse events were observed, but gastro-intestinal complaints (nausea, abdominal pain or diarrhoea) persisted in 32% of the treated patients at long-term follow-up. CONCLUSION Faecal suspensions provided by a centralized stool bank, supported by a multidisciplinary expert team, resulted in effective, appropriate and safe application of faecal microbiota transplantation for recurrent C. difficile infection. LEVEL OF EVIDENCE Level II, prospective cohort study.
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Affiliation(s)
- Elisabeth M Terveer
- Department of Medical Microbiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Karuna Ew Vendrik
- Department of Medical Microbiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Rogier E Ooijevaar
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Amsterdam, the Netherlands
| | - Emilie van Lingen
- Department of Gastroenterology, Leiden University Medical Center, Leiden, the Netherlands
| | - Eline Boeije-Koppenol
- Department of Medical Microbiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Els van Nood
- Department of Internal Medicine, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Abraham Goorhuis
- Department of Internal Medicine, Amsterdam University Medical Centers, Amsterdam, the Netherlands
| | - Martijn P Bauer
- Department of Internal Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Yvette H van Beurden
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Amsterdam, the Netherlands.,Department of Gastroenterology and Hepatology, Spaarne Gasthuis, Hoofddorp, the Netherlands
| | - Marcel Gw Dijkgraaf
- Department of Epidemiology and Data Science, Amsterdam University Medical Centers, Amsterdam, the Netherlands
| | - Chris Jj Mulder
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, Amsterdam, the Netherlands
| | | | | | - Joffrey van Prehn
- Department of Medical Microbiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Hein W Verspaget
- Department of Gastroenterology, Leiden University Medical Center, Leiden, the Netherlands.,Department of Biobanking, Leiden University Medical Center, Leiden, the Netherlands
| | - Ed J Kuijper
- Department of Medical Microbiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Josbert J Keller
- Department of Gastroenterology, Leiden University Medical Center, Leiden, the Netherlands.,Department of Gastroenterology, Haaglanden Medisch Centrum, The Hague, the Netherlands
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