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Karampatakis T, Kandilioti E, Katsifa H, Nikopoulou A, Harmanus C, Tsergouli K, Kuijper E, Kachrimanidou M. Clostridioides difficile infection epidemiology during the COVID-19 pandemic in Greece. Future Microbiol 2024:1-9. [PMID: 38913938 DOI: 10.1080/17460913.2024.2358653] [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: 12/16/2023] [Accepted: 05/20/2024] [Indexed: 06/26/2024] Open
Abstract
Aim: The aim was to highlight the incidence and epidemiology of C. difficile infections (CDI) in a tertiary Greek hospital during the COVID-19 pandemic. Methods: A single-center prospective observational cohort study was conducted (October 2021 until April 2022). 125 C. difficile isolates were cultured from hospitalized patients stool samples and screened by PCR for toxin A (tcdA), toxin B (tcdB), binary toxin (cdtA and cdtB) genes and the regulating gene of tcdC. Results: The incidence of CDI increased to 13.1 infections per 10,000 bed days. The most common PCR ribotypes identified included hypervirulent RT027-related RT181 (73.6%), presumably hypervirulent RT126 (8.0%) and toxin A negative RT017 (7.2%). Conclusion: Although the incidence of CDI increased significantly, the CDI epidemiology remained stable.
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Affiliation(s)
| | - Eleni Kandilioti
- Microbiology Department, Papanikolaou General Hospital, 570 10, Thessaloniki, Greece
| | - Helen Katsifa
- Microbiology Department, Papanikolaou General Hospital, 570 10, Thessaloniki, Greece
| | - Anna Nikopoulou
- Infectious Disease Unit, Papanikolaou General Hospital, 570 10, Thessaloniki, Greece
| | - Celine Harmanus
- Department of Medical Microbiology, Center of Infectious Diseases, Leiden University Medical Center, European Study Group of C. difficile (ESGCD), 2333ZA, Leiden, The Netherlands
| | - Katerina Tsergouli
- Microbiology Department, Agios Pavlos General Hospital, 551 34, Thessaloniki, Greece
| | - Ed Kuijper
- Department of Medical Microbiology, Center of Infectious Diseases, Leiden University Medical Center, European Study Group of C. difficile (ESGCD), 2333ZA, Leiden, The Netherlands
| | - Melina Kachrimanidou
- Department of Microbiology, Aristotle University of Thessaloniki, Medical School, 541 24, Thessaloniki, Greece
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Hernando-Gozalo M, Rescalvo-Casas C, Seijas-Pereda L, Cuadros-González J, Pérez-Tanoira R. Comparison of fidaxomicin, metronidazole and vancomycin for initial episode and recurrence of Clostridioides difficile infection - An observational cohort study. Heliyon 2024; 10:e30742. [PMID: 38803946 PMCID: PMC11128465 DOI: 10.1016/j.heliyon.2024.e30742] [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: 01/22/2024] [Revised: 05/01/2024] [Accepted: 05/03/2024] [Indexed: 05/29/2024] Open
Abstract
Objectives The main aim of this study was to compare the clinical outcomes of patients attended in our area with Clostridioides difficile infection (CDI) (sustained cure, recurrence or death) in relation to treatment to normal or hypervirulent C. difficile as a risk factor and to describe the resistance profile to metronidazole and vancomycin antibiotics in our hospital over a one-year period. Methods A retrospective, cross-sectional and observational study was conducted between June 2022 and June 2023 to compare the clinical cure and/or recurrence of CDI in adult patients treated in a Spanish secondary Hospital depending on the prescribed antibiotic treatment. In addition, we performed an antimicrobial susceptibility study to vancomycin and metronidazole in all C. difficile isolated in bacterial culture. Results Out of 194 selected patients the treatments were as follow: 43.81 % vancomycin, 21.65 % metronidazole, 8.25 % a combination of both, 6.70 % fidaxomicin and 19.59 % were untreated. Vancomycin and fidaxomicin patients had higher odds ratio of prolonged hospitalization (p = 0.041 and p = 0.040, respectively). Fidaxomicin had increased odds of suffering another episode of C. difficile (p = 0.009) and it was inferior to metronidazole for recurrent CDI (rCDI) (p = 0.035).Resistance profile for C. difficile was 4.07 % for vancomycin and 3.49 % for metronidazole. Hypervirulent C. difficile was identified in 17 (8.76 %) patients with 29.41 % of mortality (5/17; p > 0.05). Conclusion Fidaxomicin treated patients had statistically increased odds of rCDI. Compared to other treatments, fidaxomicin was inferior to metronidazole for rCDI in our cohort;Hypervirulent C. difficile was not associated with death.Vancomycin resistance of C. difficile statistically decreased, whereas metronidazole resistance did not vary during the studied period.
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Affiliation(s)
- Marcos Hernando-Gozalo
- Universidad de Alcalá, Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación en Química “Andrés M. del Río” (IQAR), 28805, Madrid, Spain
- Departamento de Microbiología Clínica, Hospital Universitario Príncipe de Asturias, 28805, Madrid, Spain
| | - Carlos Rescalvo-Casas
- Departamento de Microbiología Clínica, Hospital Universitario Príncipe de Asturias, 28805, Madrid, Spain
- Universidad de Alcalá, Facultad de Medicina, Departamento de Biomedicina y Biotecnología, 28805, Madrid, Spain
| | - Laura Seijas-Pereda
- Departamento de Microbiología Clínica, Hospital Universitario Príncipe de Asturias, 28805, Madrid, Spain
- Universidad de Alcalá, Facultad de Medicina, Departamento de Biomedicina y Biotecnología, 28805, Madrid, Spain
| | - Juan Cuadros-González
- Departamento de Microbiología Clínica, Hospital Universitario Príncipe de Asturias, 28805, Madrid, Spain
- Universidad de Alcalá, Facultad de Medicina, Departamento de Biomedicina y Biotecnología, 28805, Madrid, Spain
| | - Ramón Pérez-Tanoira
- Departamento de Microbiología Clínica, Hospital Universitario Príncipe de Asturias, 28805, Madrid, Spain
- Universidad de Alcalá, Facultad de Medicina, Departamento de Biomedicina y Biotecnología, 28805, Madrid, Spain
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Zhong S, Yang J, Huang H. The role of single and mixed biofilms in Clostridioides difficile infection and strategies for prevention and inhibition. Crit Rev Microbiol 2024; 50:285-299. [PMID: 36939635 DOI: 10.1080/1040841x.2023.2189950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 03/06/2023] [Indexed: 03/21/2023]
Abstract
Clostridioides difficile infection (CDI) is a serious disease with a high recurrence rate. The single and mixed biofilms formed by C. difficile in the gut contribute to the formation of recurrent CDI (rCDI). In parallel, other gut microbes influence the formation and development of C. difficile biofilms, also known as symbiotic biofilms. Interactions between members within the symbiotic biofilm are associated with the worsening or alleviation of CDI. These interactions include effects on C. difficile adhesion and chemotaxis, modulation of LuxS/AI-2 quorum sensing (QS) system activity, promotion of cross-feeding by microbial metabolites, and regulation of intestinal bile acid and pyruvate levels. In the process of C. difficile biofilms control, inhibition of C. difficile initial biofilm formation and killing of C. difficile vegetative cells and spores are the main targets of action. The role of symbiotic biofilms in CDI suggested that targeting interventions of C. difficile-promoting gut microbes could indirectly inhibit the formation of C. difficile mixed biofilms and improved the ultimate therapeutic effect. In summary, this review outlines the mechanisms of C. difficile biofilm formation and summarises the treatment strategies for such single and mixed biofilms, aiming to provide new ideas for the prevention and treatment of CDI.
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Affiliation(s)
- Saiwei Zhong
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, China
| | - Jingpeng Yang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China
| | - He Huang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China
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4
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Tanhaei MD, Demashkieh L, Noori O, Eupierre P. Complex Management of a Geriatric Patient With Multimorbidity: A Case Study. Cureus 2024; 16:e54604. [PMID: 38384866 PMCID: PMC10880871 DOI: 10.7759/cureus.54604] [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] [Accepted: 02/21/2024] [Indexed: 02/23/2024] Open
Abstract
Geriatric patients' distinct physiological responses to diseases and treatments, combined with multimorbidity and polypharmacy, make their care highly challenging. This case study examines the complex management of a 77-year-old female with multiple comorbidities, focusing on the primary issue of splenic hematoma leading to anemia. It highlights the importance of a multidisciplinary approach in geriatric care. The care she received underscores the necessity of ongoing supervision through the Bridge Model of Transitional Care, family engagement in the care process, and a customized, interdisciplinary approach to care. The conclusion of this case has implications for geriatric medicine, primary care, and specialty care, and it also influences strategies to help older adults maintain their functional status and quality of life.
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Affiliation(s)
- Martin D Tanhaei
- Biomedical Engineering, University of California, Irvine, Irvine, USA
- Biomedical Engineering, Johns Hopkins University, Baltimore, USA
- School of Medicine, St. George's University, True Blue, GRD
| | | | | | - Peter Eupierre
- Internal Medicine, Loyola University Medical Center/Gottlieb Memorial Hospital, River Forest, USA
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5
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Normington C, Chilton CH, Buckley AM. Clostridioides difficile infections; new treatments and future perspectives. Curr Opin Gastroenterol 2024; 40:7-13. [PMID: 37942659 PMCID: PMC10715702 DOI: 10.1097/mog.0000000000000989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
PURPOSE OF REVIEW As a significant cause of global morbidity and mortality, Clostridioides difficile infections (CDIs) are listed by the Centres for Disease Control and prevention as one of the top 5 urgent threats in the USA. CDI occurs from gut microbiome dysbiosis, typically through antibiotic-mediated disruption; however, antibiotics are the treatment of choice, which can result in recurrent infections. Here, we highlight new treatments available and provide a perspective on different classes of future treatments. RECENT FINDINGS Due to the reduced risk of disease recurrence, the microbiome-sparing antibiotic Fidaxomicin has been recommended as the first-line treatment for C. difficile infection. Based on the success of faecal microbiota transplantations (FMT) in treating CDI recurrence, defined microbiome biotherapeutics offer a safer and more tightly controlled alterative as an adjunct to antibiotic therapy. Given the association between antibiotic-mediated dysbiosis of the intestinal microbiota and the recurrence of CDI, future prospective therapies aim to reduce the dependence on antibiotics for the treatment of CDI. SUMMARY With current first-in-line antibiotic therapy options associated with high levels of recurrent CDI, the availability of new generation targeted therapeutics can really impact treatment success. There are still unknowns about the long-term implications of these new CDI therapeutics, but efforts to expand the CDI treatment toolbox can offer multiple solutions for clinicians to treat this multifaceted infectious disease to reduce patient suffering.
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Affiliation(s)
- Charmaine Normington
- Healthcare Associated Infections Research Group, School of Medicine, Faculty of Health and Medicine, University of Leeds
- Leeds Teaching Hospital Trust, Leeds General Infirmary
| | - Caroline H. Chilton
- Healthcare Associated Infections Research Group, School of Medicine, Faculty of Health and Medicine, University of Leeds
- Leeds Teaching Hospital Trust, Leeds General Infirmary
| | - Anthony M. Buckley
- Microbiome and Nutritional Sciences Group, School of Food Science & Nutrition, Faculty of Environment, University of Leeds, Leeds, UK
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Rubio-Mendoza D, Martínez-Meléndez A, Maldonado-Garza HJ, Córdova-Fletes C, Garza-González E. Review of the Impact of Biofilm Formation on Recurrent Clostridioides difficile Infection. Microorganisms 2023; 11:2525. [PMID: 37894183 PMCID: PMC10609348 DOI: 10.3390/microorganisms11102525] [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: 09/05/2023] [Revised: 09/25/2023] [Accepted: 09/29/2023] [Indexed: 10/29/2023] Open
Abstract
Clostridioides difficile infection (CDI) may recur in approximately 10-30% of patients, and the risk of recurrence increases with each successive recurrence, reaching up to 65%. C. difficile can form biofilm with approximately 20% of the bacterial genome expressed differently between biofilm and planktonic cells. Biofilm plays several roles that may favor recurrence; for example, it may act as a reservoir of spores, protect the vegetative cells from the activity of antibiotics, and favor the formation of persistent cells. Moreover, the expression of several virulence genes, including TcdA and TcdB toxins, has been associated with recurrence. Several systems and structures associated with adhesion and biofilm formation have been studied in C. difficile, including cell-wall proteins, quorum sensing (including LuxS and Agr), Cyclic di-GMP, type IV pili, and flagella. Most antibiotics recommended for the treatment of CDI do not have activity on spores and do not eliminate biofilm. Therapeutic failure in R-CDI has been associated with the inadequate concentration of drugs in the intestinal tract and the antibiotic resistance of a biofilm. This makes it challenging to eradicate C. difficile in the intestine, complicating antibacterial therapies and allowing non-eliminated spores to remain in the biofilm, increasing the risk of recurrence. In this review, we examine the role of biofilm on recurrence and the challenges of treating CDI when the bacteria form a biofilm.
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Affiliation(s)
- Daira Rubio-Mendoza
- Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey 64460, Mexico; (D.R.-M.); (H.J.M.-G.); (C.C.-F.)
| | - Adrián Martínez-Meléndez
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza 66455, Mexico;
| | - Héctor Jesús Maldonado-Garza
- Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey 64460, Mexico; (D.R.-M.); (H.J.M.-G.); (C.C.-F.)
| | - Carlos Córdova-Fletes
- Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey 64460, Mexico; (D.R.-M.); (H.J.M.-G.); (C.C.-F.)
| | - Elvira Garza-González
- Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey 64460, Mexico; (D.R.-M.); (H.J.M.-G.); (C.C.-F.)
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Wu X, Ai RJ, Xu J, Wen Q, Pan HQ, Zhang ZH, Ning W, Fang Y, Ding DF, Wang Q, Han S, Liu X, Wu M, Jia ZY, Jia S, Lin T, Cui BT, Nie YZ, Wang X, Zhang FM. Washed microbiota transplantation for Clostridioides difficile infection: A national multicenter real-world study. J Dig Dis 2023; 24:540-549. [PMID: 37681235 DOI: 10.1111/1751-2980.13227] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 08/21/2023] [Accepted: 09/06/2023] [Indexed: 09/09/2023]
Abstract
OBJECTIVES Fecal microbiota transplantation (FMT) has been recommended for the treatment of recurrent Clostridioides difficile infection (CDI). We aimed to evaluate the therapeutic efficacy and safety of washed microbiota transplantation (WMT), a new method of FMT, for CDI across various medical settings. METHODS This multicenter real-world cohort study included CDI patients undergoing WMT. The primary outcome was the clinical cure rate of CDI within 8 weeks after WMT. Secondary outcomes included the CDI recurrence rate and reduction in total abdominal symptom score (TASS) during the follow-up period. Adverse events related to WMT were recorded. RESULTS Altogether 90.7% (49/54) of CDI patients achieved clinical cure after treated with WMT. The cure rate was 83.3% for cases with severe and complicated CDI (ScCDI) (n = 30) and 100% for non-ScCDI cases (n = 24) (P = 0.059). No difference was observed in the clinical cure rate between patients with first and recurrent CDI (91.9% vs 88.2%, P = 0.645). One week post-WMT, TASS showed a remarkable decrease compared to that at baseline (P < 0.001). Totally, 8.2% (4/49) of patients suffered CDI recurrence during the follow-up period. A WHO performance score of 4, age ≥65 years, higher TASS score, and higher Charlson comorbidity index score were potential risk factors for efficacy (P = 0.018, 0.03, 0.01, 0.034, respectively). Four (3.8%) transient adverse events related to WMT were observed. CONCLUSIONS This study emphasizes the attractive value of WMT for CDI. Early WMT may be recommended for CDI, especially for those in serious condition or with complex comorbidities. TRIAL REGISTRATION ClinicalTrials.gov, no. NCT03895593 (registered on 27 March 2019).
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Affiliation(s)
- Xia Wu
- Department of Microbiota Medicine & Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
- Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Ru Jun Ai
- Department of Microbiota Medicine & Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
- Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Jie Xu
- Department of Microbiota Medicine & Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
- Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Quan Wen
- Department of Microbiota Medicine & Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
- Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Hua Qin Pan
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Zhi Hua Zhang
- Department of Gastroenterology, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Wang Ning
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, China
| | - Ying Fang
- Department of Gastroenterology, The Affiliated Children's Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi Province, China
| | - Da Fa Ding
- Department of Endocrinology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Quan Wang
- Department of Geriatrics, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Shuang Han
- Department of Gastroenterology, Honghui Hospital, Xi'an, Shaanxi Province, China
| | - Xiao Liu
- Department of Gastroenterology, Xi'an International Medical Center Hospital, Xi'an, Shaanxi Province, China
| | - Mei Wu
- Department of Gastroenterology, The Second Affiliated Hospital of Guilin Medical University, Guilin, Guangxi Zhuang Autonomous Region, China
| | - Zhen Yu Jia
- Department of General Practice, The Affiliated Zhangjiagang Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Song Jia
- Department of Gastroenterology, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei Province, China
| | - Tao Lin
- Department of Gastroenterology, Xi'an Daxing Hospital, Xi'an, Shaanxi Province, China
| | - Bo Ta Cui
- Department of Microbiota Medicine & Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
- Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Yong Zhan Nie
- Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi Province, China
- National Clinical Research Center for Digestive Diseases, Xi'an, Shaanxi Province, China
| | - Xin Wang
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi Province, China
- National Clinical Research Center for Digestive Diseases, Xi'an, Shaanxi Province, China
| | - Fa Ming Zhang
- Department of Microbiota Medicine & Medical Center for Digestive Diseases, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China
- Key Lab of Holistic Integrative Enterology, Nanjing Medical University, Nanjing, Jiangsu Province, China
- National Clinical Research Center for Digestive Diseases, Xi'an, Shaanxi Province, China
- Division of Microbiotherapy, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu Province, China
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Kisthardt SC, Thanissery R, Pike CM, Foley MH, Theriot CM. The microbial-derived bile acid lithocholate and its epimers inhibit Clostridioides difficile growth and pathogenicity while sparing members of the gut microbiota. J Bacteriol 2023; 205:e0018023. [PMID: 37695856 PMCID: PMC10521352 DOI: 10.1128/jb.00180-23] [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: 06/05/2023] [Accepted: 08/04/2023] [Indexed: 09/13/2023] Open
Abstract
Clostridioides difficile is a Gram-positive, spore-forming anaerobe that causes clinical diseases ranging from diarrhea and pseudomembranous colitis to toxic megacolon and death. C. difficile infection (CDI) is associated with antibiotic usage, which disrupts the indigenous gut microbiota and causes the loss of microbial-derived secondary bile acids that normally provide protection against C. difficile colonization. Previous work has shown that the secondary bile acid lithocholate (LCA) and its epimer isolithocholate (iLCA) have potent inhibitory activity against clinically relevant C. difficile strains. To further characterize the mechanisms by which LCA and its epimers iLCA and isoallolithocholate (iaLCA) inhibit C. difficile, we tested their minimum inhibitory concentration against C. difficile R20291 and a commensal gut microbiota panel. We also performed a series of experiments to determine the mechanism of action by which LCA and its epimers inhibit C. difficile through bacterial killing and effects on toxin expression and activity. Additionally, we tested the cytotoxicity of these bile acids through Caco-2 cell apoptosis and viability assays to gauge their effects on the host. Here, we show that the epimers iLCA and iaLCA strongly inhibit C. difficile growth in vitro while sparing most commensal Gram-negative gut microbes. We also show that iLCA and iaLCA have bactericidal activity against C. difficile, and these epimers cause significant bacterial membrane damage at subinhibitory concentrations. Finally, we observe that iLCA and iaLCA decrease the expression of the large cytotoxin tcdA, while LCA significantly reduces toxin activity. Although iLCA and iaLCA are both epimers of LCA, they have distinct mechanisms for inhibiting C. difficile. LCA epimers, iLCA and iaLCA, represent promising compounds that target C. difficile with minimal effects on members of the gut microbiota that are important for colonization resistance. IMPORTANCE In the search for a novel therapeutic that targets Clostridioides difficile, bile acids have become a viable solution. Epimers of bile acids are particularly attractive as they may provide protection against C. difficile while leaving the indigenous gut microbiota largely unaltered. This study shows that LCA epimers isolithocholate (iLCA) and LCA epimers isoallolithocholate (iaLCA) specifically are potent inhibitors of C. difficile, affecting key virulence factors including growth, toxin expression, and activity. As we move toward the use of bile acids as therapeutics, further work will be required to determine how best to deliver these bile acids to a target site within the host intestinal tract.
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Affiliation(s)
- Samantha C. Kisthardt
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - Rajani Thanissery
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - Colleen M. Pike
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - Matthew H. Foley
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
- Department of Food, Bioprocessing and Nutrition Sciences, College of Agriculture and Life Sciences, North Carolina State University, Raleigh, North Carolina, USA
| | - Casey M. Theriot
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
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9
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Dicks LMT. Biofilm Formation of Clostridioides difficile, Toxin Production and Alternatives to Conventional Antibiotics in the Treatment of CDI. Microorganisms 2023; 11:2161. [PMID: 37764005 PMCID: PMC10534356 DOI: 10.3390/microorganisms11092161] [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: 06/29/2023] [Revised: 08/16/2023] [Accepted: 08/24/2023] [Indexed: 09/29/2023] Open
Abstract
Clostridioides difficile is considered a nosocomial pathogen that flares up in patients exposed to antibiotic treatment. However, four out of ten patients diagnosed with C. difficile infection (CDI) acquired the infection from non-hospitalized individuals, many of whom have not been treated with antibiotics. Treatment of recurrent CDI (rCDI) with antibiotics, especially vancomycin (VAN) and metronidazole (MNZ), increases the risk of experiencing a relapse by as much as 70%. Fidaxomicin, on the other hand, proved more effective than VAN and MNZ by preventing the initial transcription of RNA toxin genes. Alternative forms of treatment include quorum quenching (QQ) that blocks toxin synthesis, binding of small anion molecules such as tolevamer to toxins, monoclonal antibodies, such as bezlotoxumab and actoxumab, bacteriophage therapy, probiotics, and fecal microbial transplants (FMTs). This review summarizes factors that affect the colonization of C. difficile and the pathogenicity of toxins TcdA and TcdB. The different approaches experimented with in the destruction of C. difficile and treatment of CDI are evaluated.
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Affiliation(s)
- Leon M T Dicks
- Department of Microbiology, Stellenbosch University, Stellenbosch 7600, South Africa
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10
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Naz F, Petri WA. Host Immunity and Immunization Strategies for Clostridioides difficile Infection. Clin Microbiol Rev 2023; 36:e0015722. [PMID: 37162338 PMCID: PMC10283484 DOI: 10.1128/cmr.00157-22] [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: 05/11/2023] Open
Abstract
Clostridioides difficile infection (CDI) represents a significant challenge to public health. C. difficile-associated mortality and morbidity have led the U.S. CDC to designate it as an urgent threat. Moreover, recurrence or relapses can occur in up to a third of CDI patients, due in part to antibiotics being the primary treatment for CDI and the major cause of the disease. In this review, we summarize the current knowledge of innate immune responses, adaptive immune responses, and the link between innate and adaptive immune responses of the host against CDI. The other major determinants of CDI, such as C. difficile toxins, the host microbiota, and related treatments, are also described. Finally, we discuss the known therapeutic approaches and the current status of immunization strategies for CDI, which might help to bridge the knowledge gap in the generation of therapy against CDI.
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Affiliation(s)
- Farha Naz
- Division of Infectious Diseases and International Health, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - William A. Petri
- Division of Infectious Diseases and International Health, University of Virginia School of Medicine, Charlottesville, Virginia, USA
- Department of Pathology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
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Kisthardt SC, Thanissery R, Pike CM, Foley MH, Theriot CM. The microbial derived bile acid lithocholate and its epimers inhibit Clostridioides difficile growth and pathogenicity while sparing members of the gut microbiota. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.06.06.543867. [PMID: 37333390 PMCID: PMC10274734 DOI: 10.1101/2023.06.06.543867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
C. difficile infection (CDI) is associated with antibiotic usage, which disrupts the indigenous gut microbiota and causes the loss of microbial derived secondary bile acids that normally provide protection against C. difficile colonization. Previous work has shown that the secondary bile acid lithocholate (LCA) and its epimer isolithocholate (iLCA) have potent inhibitory activity against clinically relevant C. difficile strains. To further characterize the mechanisms by which LCA and its epimers iLCA and isoallolithocholate (iaLCA) inhibit C. difficile, we tested their minimum inhibitory concentration (MIC) against C. difficile R20291, and a commensal gut microbiota panel. We also performed a series of experiments to determine the mechanism of action by which LCA and its epimers inhibit C. difficile through bacterial killing and effects on toxin expression and activity. Here we show that epimers iLCA and iaLCA strongly inhibit C. difficile growth in vitro while sparing most commensal Gram-negative gut microbes. We also show that iLCA and iaLCA have bactericidal activity against C. difficile, and these epimers cause significant bacterial membrane damage at subinhibitory concentrations. Finally, we observe that iLCA and iaLCA decrease the expression of the large cytotoxin tcdA while LCA significantly reduces toxin activity. Although iLCA and iaLCA are both epimers of LCA, they have distinct mechanisms for inhibiting C. difficile . LCA epimers, iLCA and iaLCA, represent promising compounds that target C. difficile with minimal effects on members of the gut microbiota that are important for colonization resistance. Importance In the search for a novel therapeutic that targets C. difficile , bile acids have become a viable solution. Epimers of bile acids are particularly attractive as they may provide protection against C. difficile while leaving the indigenous gut microbiota largely unaltered. This study shows that iLCA and iaLCA specifically are potent inhibitors of C. difficile , affecting key virulence factors including growth, toxin expression and activity. As we move toward the use of bile acids as therapeutics, further work will be required to determine how best to deliver these bile acids to a target site within the host intestinal tract.
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Affiliation(s)
- Samantha C Kisthardt
- North Carolina State University, College of Veterinary Medicine, Department of Population Health and Pathobiology, Raleigh, NC
| | - Rajani Thanissery
- North Carolina State University, College of Veterinary Medicine, Department of Population Health and Pathobiology, Raleigh, NC
| | - Colleen M Pike
- North Carolina State University, College of Veterinary Medicine, Department of Population Health and Pathobiology, Raleigh, NC
| | - Matthew H Foley
- North Carolina State University, College of Veterinary Medicine, Department of Population Health and Pathobiology, Raleigh, NC
- Department of Food, Bioprocessing and Nutrition Sciences, College of Agriculture and Life Sciences, North Carolina State University, Raleigh, NC, USA
| | - Casey M Theriot
- North Carolina State University, College of Veterinary Medicine, Department of Population Health and Pathobiology, Raleigh, NC
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Retrospective Cohort Analysis of Outpatient Antibiotic Use for Clostridioides difficile-Indicated Agents in British Columbia, from 2000 to 2018. THE CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY = JOURNAL CANADIEN DES MALADIES INFECTIEUSES ET DE LA MICROBIOLOGIE MEDICALE 2023; 2023:9465158. [PMID: 36816780 PMCID: PMC9937755 DOI: 10.1155/2023/9465158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 01/22/2023] [Accepted: 01/30/2023] [Indexed: 02/12/2023]
Abstract
Background Clostridioides difficile (CDI) is the most common cause of nosocomial diarrheal infections. Historically, metronidazole was the first-line treatment, but guidelines now indicate oral vancomycin and fidaxomicin as primary antibiotics for initial episodes. A provincial stewardship program has operated in British Columbia (BC), since 2005. Since the program's inception, surveillance of antibiotic use has been ongoing. However, this is the first study to review community-acquired CDI-indicated antibiotic use. Moreover, this study offers the first interpretation of fidaxomicin use in BC since its addition to the provincial formulary. Methods A retrospective cohort analysis included all outpatient dispensations for CDI-related antibiotics from January 1, 2000, to December 31, 2018. Antibiotic dispensations were extracted for metronidazole, vancomycin, and fidaxomicin. Consumption rates were calculated as prescriptions per 1000 population. Rates were examined overall and then stratified by medication, age, and sex. Secondary outcomes of interest included an examination of adherence to provincial special authority criteria; and proportions of outpatient antibiotic use attributable to administrative health records for CDI. Results The average annual rate of prescribing was 18.5 per 1000 population for all CDI-indicated antibiotics. The rate of prescribing increased (15%) over the 19-year study period, from 17.2 to 19.8 dispensations per 1000 population. Metronidazole accounted for the most antibiotics dispensed in every study year; however, by 2018 it demonstrated the most modest increase in use (15%). In comparison, fidaxomicin increased by 226% by 2018. Vancomycin had the highest percentage increase (621%), with the greatest change occurring from 2014 to 2015, correlating to the dissemination of new clinical practice guidelines. Conclusion This is the first study to evaluate outpatient prescribing for CDI-indicated antibiotics, and one of the few studies to examine fidaxomicin since its introduction to Canadian formularies. Although causation cannot be inferred from study results, oral vancomycin, and fidaxomicin use has increased in line with, or in advance-of guidelines.
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13
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Bainum TB, Reveles KR, Hall RG, Cornell K, Alvarez CA. Controversies in the Prevention and Treatment of Clostridioides difficile Infection in Adults: A Narrative Review. Microorganisms 2023; 11:387. [PMID: 36838352 PMCID: PMC9963748 DOI: 10.3390/microorganisms11020387] [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: 12/23/2022] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
Clostridioides difficile remains a problematic pathogen resulting in significant morbidity and mortality, especially for high-risk groups that include immunocompromised patients. Both the Infectious Diseases Society of America and the Society for Healthcare Epidemiology of America (IDSA/SHEA), as well as the American College of Gastroenterology (ACG) and the European Society of Clinical Microbiology and Infectious Diseases (ESCMID) recently provided guideline updates for C. difficile infection (CDI). In this narrative review, the authors reviewed available literature regarding the prevention or treatment of CDI in adults and focused on disagreements between the IDSA/SHEA and ACG guidelines, as well as articles that have been published since the updates. Several options for primary prophylaxis are available, including probiotics and antibiotics (vancomycin, fidaxomicin). The literature supporting fidaxomicin is currently quite limited. While there are more studies evaluating probiotics and vancomycin, the optimal patient populations and regimens for their use have yet to be defined. While the IDSA/SHEA guidelines discourage metronidazole use for mild CDI episodes, evidence exists that it may remain a reasonable option for these patients. Fidaxomicin has an advantage over vancomycin in reducing recurrences, but its use is limited by cost. Despite this, recent studies suggest fidaxomicin's cost-effectiveness as a first-line therapy, though this is highly dependent on institutional contracts and payment structures. Secondary prophylaxis should focus on non-antimicrobial options to lessen the impact on the microbiome. The oral option of fecal microbiota transplantation (FMT), SER109, and the now FDA-approved RBX2660 represent exciting new options to correct dysbiosis. Bezlotoxumab is another attractive option to prevent recurrences. Further head-to-head studies of newer agents will be needed to guide selection of the optimal therapies for CDI primary and secondary prophylaxis.
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Affiliation(s)
- Taryn B. Bainum
- Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - Kelly R. Reveles
- College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA
- Pharmacotherapy Education and Research Center, University of Texas Health San Antonio, San Antonio, TX 78229, USA
| | - Ronald G. Hall
- Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - Kelli Cornell
- Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - Carlos A. Alvarez
- Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
- Center of Excellence in Real-World Evidence, Texas Tech University Health Sciences Center, Dallas, TX 75235, USA
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14
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Liao JX, Appaneal HJ, Vicent ML, Vyas A, LaPlante KL. Path of least recurrence: A systematic review and
meta‐analysis
of fidaxomicin versus vancomycin for
Clostridioides difficile
infection. Pharmacotherapy 2022; 42:810-827. [DOI: 10.1002/phar.2734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 09/19/2022] [Accepted: 09/21/2022] [Indexed: 11/06/2022]
Affiliation(s)
- J. Xin Liao
- Infectious Diseases Research Program Providence Veterans Affairs Medical Center Providence Rhode Island USA
- College of Pharmacy University of Rhode Island Kingston Rhode Island USA
| | - Haley J. Appaneal
- Infectious Diseases Research Program Providence Veterans Affairs Medical Center Providence Rhode Island USA
- College of Pharmacy University of Rhode Island Kingston Rhode Island USA
- Center of Innovation in Long‐Term Support Services Providence Veterans Affairs Medical Center Providence Rhode Island USA
| | - Martie L. Vicent
- Infectious Diseases Research Program Providence Veterans Affairs Medical Center Providence Rhode Island USA
- College of Pharmacy University of Rhode Island Kingston Rhode Island USA
| | - Ami Vyas
- College of Pharmacy University of Rhode Island Kingston Rhode Island USA
| | - Kerry L. LaPlante
- Infectious Diseases Research Program Providence Veterans Affairs Medical Center Providence Rhode Island USA
- College of Pharmacy University of Rhode Island Kingston Rhode Island USA
- Center of Innovation in Long‐Term Support Services Providence Veterans Affairs Medical Center Providence Rhode Island USA
- Warren Alpert Medical School of Brown University Providence Rhode Island USA
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15
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Real-world comparison of fidaxomicin versus vancomycin or metronidazole in the treatment of Clostridium difficile infection: a systematic review and meta-analysis. Eur J Clin Pharmacol 2022; 78:1727-1737. [PMID: 36057672 DOI: 10.1007/s00228-022-03376-1] [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: 05/07/2022] [Accepted: 08/21/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE There is a lack of real-world evidence of the comparative effectiveness of fidaxomicin versus vancomycin or metronidazole for treating patients with Clostridium difficile (CDI) infection. No systematic evidence comparing these treatment regimens using real-world observational studies was published up to date. The goal of this study is to compare the fidaxomicin and vancomycin/metronidazole regimens in terms of treatment outcomes in CDI patients. METHODS Systematic and comprehensive search was carried out in the following databases and search engines: EMBASE, Cochrane, MEDLINE, ScienceDirect, and Google Scholar from 1954 until January 2022. Newcastle-Ottawa (NO) scale was used to assess the risk of bias. Meta-analysis was carried out using random effects model, and pooled odds ratios (OR) with 95% confidence interval (CI) were reported. RESULTS A total of 10 studies satisfied the inclusion criteria, most of them were with poorer quality. The pooled OR was 0.40 (95% CI: 0.09-1.68; I2 = 82.4%) for clinical cure and 2.02 (95% CI: 0.36-11.39; I2 = 88.4%) for sustained cure. We reported pooled OR of 0.69 (95% CI: 0.40-1.20; I2 = 65.7%) for the recurrence rate, 2.81 (95% CI: 1.08-7.29; I2 = 70.6%) for the treatment failure, and 0.73 (95% CI: 0.50-1.07; I2 = 0%) for all-cause mortality between patients that received fidaxomicin and vancomycin. The pooled OR was 0.71 (95% CI: 0.05-9.47; I2 = 69.6%) in terms of recurrence between patients receiving fidaxomicin and metronidazole. CONCLUSION Fidaxomicin and vancomycin/metronidazole regimens did not have significant difference in terms of treatment outcomes, such as clinical cure, sustained cure, recurrence, and all-cause mortality. However, there was significantly higher risk of treatment failure in CDI patients taking fidaxomicin.
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16
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Tashiro S, Mihara T, Sasaki M, Shimamura C, Shimamura R, Suzuki S, Yoshikawa M, Hasegawa T, Enoki Y, Taguchi K, Matsumoto K, Ohge H, Suzuki H, Nakamura A, Mori N, Morinaga Y, Yamagishi Y, Yoshizawa S, Yanagihara K, Mikamo H, Kunishima H. Oral fidaxomicin versus vancomycin for the treatment of Clostridioides difficile infection: A systematic review and meta-analysis of randomized controlled trials. J Infect Chemother 2022; 28:1536-1545. [PMID: 35964806 DOI: 10.1016/j.jiac.2022.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 07/27/2022] [Accepted: 08/04/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Fidaxomicin (FDX) has received considerable attention as a novel therapeutic alternative agent to vancomycin (VCM) for Clostridioides difficile infection (CDI). However, the superiority and efficacy profile of FDX are not sufficiently determined by high-quality evidence. This study aimed to clarify the superiority of FDX for CDI treatment through a systematic review and meta-analysis. METHODS We conducted a meta-analysis of randomized controlled trials (RCTs) which evaluated the efficacy and safety of FDX and VCM in patients with CDI. Electronic databases (PubMed, Cochrane Library, Web of Science, and Clinicaltrials.gov) were searched for studies published until October 15, 2021. The primary endpoint was global cure. The secondary endpoints were clinical cure, recurrence, and adverse event. Risk ratios (RRs), risk differences (RDs), and 95% confidence intervals were calculated using Mantel-Haenszel random-effects model. The risk of bias was assessed using Cochrane Handbook for Systematic Reviews of Interventions and Assessment Criteria. RESULTS Six RCTs were included in this meta-analysis. Compared to VCM, FDX was associated with significantly higher global cure rates (RR = 1.18, P < 0.00001; RD = 0.11, 95% CI = 0.07-0.16). In addition, clinical cure rates were comparable between FDX and VCM (P = 0.31). FDX was associated with significantly lower recurrence rates compared to VCM (RR = 0.59, P < 0.0001). In addition, adverse event rates were not significantly different between the drugs (P = 0.41). CONCLUSION FDX achieves significantly higher global cure rates and lower recurrence rates and is comparable to VCM in clinical cure rates and adverse event rates in patients with CDI. Collectively, FDX is superior to VCM as a therapeutic agent for CDI.
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Affiliation(s)
- Sho Tashiro
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Takayuki Mihara
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Moe Sasaki
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Chiaki Shimamura
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Rina Shimamura
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Shiho Suzuki
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Maiko Yoshikawa
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Tatsuki Hasegawa
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Yuki Enoki
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan.
| | - Kazuaki Taguchi
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Kazuaki Matsumoto
- Division of Pharmacodynamics, Keio University Faculty of Pharmacy, Tokyo, Japan
| | - Hiroki Ohge
- Department of Infectious Diseases, Hiroshima University Hospital, Hiroshima, Japan
| | - Hiromichi Suzuki
- Department of Infectious Diseases, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Atsushi Nakamura
- Department of Infection Prevention and Control, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan
| | - Nobuaki Mori
- Department of General Internal Medicine and Infectious Diseases, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
| | - Yoshitomo Morinaga
- Department of Microbiology, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Yuka Yamagishi
- Department of Clinical Infectious Diseases, Kochi Medical School, Kochi, Japan
| | - Sadako Yoshizawa
- Department of Clinical Laboratory / Department of Microbiology and Infectious Diseases, Toho University Faculty of Medicine, Tokyo, Japan
| | - Katsunori Yanagihara
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Hiroshige Mikamo
- Department of Clinical Infectious Diseases, Aichi Medical University Hospital, Aichi, Japan
| | - Hiroyuki Kunishima
- Department of Infectious Diseases, St. Marianna University School of Medicine, Kanagawa, Japan
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17
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Kirsch SH, Haeckl FPJ, Müller R. Beyond the approved: target sites and inhibitors of bacterial RNA polymerase from bacteria and fungi. Nat Prod Rep 2022; 39:1226-1263. [PMID: 35507039 DOI: 10.1039/d1np00067e] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Covering: 2016 to 2022RNA polymerase (RNAP) is the central enzyme in bacterial gene expression representing an attractive and validated target for antibiotics. Two well-known and clinically approved classes of natural product RNAP inhibitors are the rifamycins and the fidaxomycins. Rifampicin (Rif), a semi-synthetic derivative of rifamycin, plays a crucial role as a first line antibiotic in the treatment of tuberculosis and a broad range of bacterial infections. However, more and more pathogens such as Mycobacterium tuberculosis develop resistance, not only against Rif and other RNAP inhibitors. To overcome this problem, novel RNAP inhibitors exhibiting different target sites are urgently needed. This review includes recent developments published between 2016 and today. Particular focus is placed on novel findings concerning already known bacterial RNAP inhibitors, the characterization and development of new compounds isolated from bacteria and fungi, and providing brief insights into promising new synthetic compounds.
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Affiliation(s)
- Susanne H Kirsch
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University Campus, 66123 Saarbrücken, Germany. .,German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, 38124 Braunschweig, Germany
| | - F P Jake Haeckl
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University Campus, 66123 Saarbrücken, Germany. .,German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, 38124 Braunschweig, Germany
| | - Rolf Müller
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research (HZI), Saarland University Campus, 66123 Saarbrücken, Germany. .,German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, 38124 Braunschweig, Germany.,Department of Pharmacy, Saarland University, 66123 Saarbrücken, Germany
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18
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Kim J, Kim J, Kim B, Pai H. Which is the Preferred Regimen for Non-Severe Clostridioides difficile Infection in Korea, Vancomycin or Metronidazole? Infect Chemother 2022; 54:213-219. [PMID: 35706079 PMCID: PMC9259900 DOI: 10.3947/ic.2022.0027] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 05/13/2022] [Indexed: 02/06/2023] Open
Abstract
The emergence of hypervirulent Clostridioides difficile strains has decreased the efficacy of metronidazole in the treatment of C. difficile infection (CDI). Therefore, revised guidelines no longer recommend the use of metronidazole as a first-line regimen for CDI and restrict its use for non-severe CDI, only when vancomycin and fidaxomicin are unavailable. In Korea, an epidemic caused by a hypervirulent C. difficile strain or the emergence of metronidazole resistant C. difficile strains have not been reported. This review article aims to compare the treatment outcomes and adverse effects of vancomycin and metronidazole and discuss the validity of the guidelines of various agencies, which restrict the use of metronidazole, for Korean patients. There are no substantial adverse effects of metronidazole, and its clinical outcomes against non-severe CDI are similar to those of vancomycin. Based on these findings, we recommend that the use of metronidazole for the treatment of non-severe CDI is still an appropriate option in Korea.
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Affiliation(s)
- Jieun Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Jinyeong Kim
- Department of Internal Medicine, Hanyang University Guri Hospital, Guri, Korea
| | - Bongyoung Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Hyunjoo Pai
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
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Cross SJ, Morton TH, Wolf J. Epidemiology, Diagnosis, and Treatment of Clostridioides difficile Infection in Immunocompromised Children. J Pediatric Infect Dis Soc 2021; 10:S46-S51. [PMID: 34791397 PMCID: PMC8824809 DOI: 10.1093/jpids/piab078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Clostridioides difficile infection is very common in immunocompromised children. Management is confounded by frequent asymptomatic colonization, multiple alternative etiologies for gastrointestinal symptoms, and high rates of relapse. Important considerations include indications for testing, appropriate choice of diagnostic tests, antibiotic therapy for initial and subsequent episodes, and primary and secondary prevention.
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Affiliation(s)
- Shane J Cross
- Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
- Department of Clinical Pharmacy and Translational Science, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Theodore H Morton
- Department of Clinical Pharmacy and Translational Science, College of Pharmacy, University of Tennessee Health Science Center, Memphis, Tennessee, USA
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Joshua Wolf
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee, USA
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20
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Klezovich-Bénard M, Bouchand F, Rouveix E, Goossens PL, Davido B. Management and characteristics of patients suffering from Clostridiodes difficile infection in primary care. Eur J Gen Pract 2021; 27:320-325. [PMID: 34755587 PMCID: PMC8583832 DOI: 10.1080/13814788.2021.1998447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Background Clostridioides difficile infection (CDI) is rising and increases patient healthcare costs due to extended hospitalisation, tests and medications. Management of CDI in French primary care is poorly reported. Objectives To characterise patients suffering from CDI, managed in primary care and describe their clinical outcomes. Methods Retrospective observational study based on survey data among 500 randomly selected General Practitioners (GPs) surveyed in France from September 2018 to April 2019. GPs were asked to complete a multiple-choice questionnaire for each reported patient presenting a CDI. Responses were analysed according to clinical characteristics. Treatment strategies were compared according to the outcome: recovery or recurrent infection. Results Participation rate was 8.6% (n = 43/500) with two incomplete questionnaires. Data from 41 patients with an actual diagnosis of CDI were analysed. Recovery was observed in 61% of patients with a confirmed diagnosis of CDI. In the recovery group, this was exclusively a primary episode, most patients (72%) had no comorbidities, were significantly younger (p = 0.02) than the ones who relapsed and 92% were successfully treated with oral metronidazole. Duration of diarrhoea after antimicrobial treatment initiation was significantly shorter in the recovery group (≤ 48 h) (p = 0.03). Cooperation with hospital specialists was reported in 28% of the recovery group versus 87.5% of the recurrent group (p = 0.0003). Overall, GPs managed successfully 82.9% of cases without need of hospital admission. Conclusion GPs provide relevant ambulatory care for mild primary episodes of CDI using oral metronidazole. Persistent diarrhoea despite an appropriate anti-Clostridiodes regimen should be interpreted as an early predictor of relapse.
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Affiliation(s)
- Maria Klezovich-Bénard
- Département de Médecine Générale, l'Université de Versailles Saint Quentin en Yvelines, France
| | - Frédérique Bouchand
- Pharmacie Hospitalière, Centre Hospitalier Universitaire Raymond Poincaré, AP-HP, Garches, France
| | - Elisabeth Rouveix
- Service des Maladies Infectieuses, Centre Hospitalier Universitaire Raymond Poincaré, AP-HP, Garches, France
| | | | - Benjamin Davido
- Service des Maladies Infectieuses, Centre Hospitalier Universitaire Raymond Poincaré, AP-HP, Garches, France
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