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Yao X, Gao J, Wang L, Hou X, Ge L, Qin X, Qiu J, Deng X, Li W, Wang J. Cananga oil inhibits Salmonella infection by mediating the homeostasis of purine metabolism and the TCA cycle. J Ethnopharmacol 2024; 325:117864. [PMID: 38325671 DOI: 10.1016/j.jep.2024.117864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 01/22/2024] [Accepted: 02/03/2024] [Indexed: 02/09/2024]
Abstract
ETHNOPHARMACOLOGY RELEVANCE Cananga oil (CO) is derived from the flowers of the traditional medicinal plant, the ylang-ylang tree. As a traditional antidepressant, CO is commonly utilized in the treatment of various mental disorders including depression, anxiety, and autism. It is also recognized as an efficient antibacterial insecticide, and has been traditionally utilized to combat malaria and acute inflammatory responses resulting from bacterial infections both in vitro and in vivo. AIM OF THE STUDY The objective of this study is to comprehensively investigate the anti-Salmonella activity and mechanism of CO both in vitro and in vivo, with the expectation of providing feasible strategies for exploring new antimicrobial strategies and developing novel drugs. METHODS The in vitro antibacterial activity of CO was comprehensively analyzed by measuring MIC, MBC, growth curve, time-killing curve, surface motility, biofilm, and Live/dead bacterial staining. The analysis of the chemistry and active ingredients of CO was conducted using GC-MS. To examine the influence of CO on the membrane homeostasis of Salmonella, we conducted utilizing diverse techniques, including ANS, PI, NPN, ONPG, BCECF-AM, DiSC3(5), and scanning electron microscopy (SEM) analysis. In addition, the antibacterial mechanism of CO was analyzed and validated through metabolomics analysis. Finally, a mouse infection model of Salmonella typhimurium was established to evaluate the toxic side effects and therapeutic effects of CO. RESULTS The antibacterial effect of CO is the result of the combined action of the main chemical components within its six (palmitic acid, α-linolenic acid, stearic acid, benzyl benzoate, benzyl acetate, and myristic acid). Furthermore, CO disrupts the balance of purine metabolism and the tricarboxylic acid cycle (TCA cycle) in Salmonella, interfering with redox processes. This leads to energy metabolic disorders and oxidative stress damage within the bacteria, resulting in bacterial shock, enhanced membrane damage, and ultimately bacterial death. It is worth emphasizing that CO exerts an effective protective influence on Salmonella infection in vivo within a non-toxic concentration range. CONCLUSION The outcomes indicate that CO displays remarkable anti-Salmonella activity both in vitro and in vivo. It triggers bacterial death by disrupting the balance of purine metabolism and the TCA cycle, interfering with the redox process, making it a promising anti-Salmonella medication.
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Affiliation(s)
- Xinyu Yao
- Department of Gastrocolorectal Surgery, General Surgery Center, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, Jilin, China; State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun, 130062, China.
| | - Jinying Gao
- Department of Respiratory Medicine, The First Hospital of Jilin University, 1 Xinmin Street, Changchun, 130021, Jilin, China.
| | - Lanqiao Wang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun, 130062, China.
| | - Xiaoning Hou
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun, 130062, China.
| | - Litao Ge
- Department of Gastrocolorectal Surgery, General Surgery Center, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, Jilin, China.
| | - Xinxin Qin
- Department of Gastrocolorectal Surgery, General Surgery Center, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, Jilin, China.
| | - Jiazhang Qiu
- Department of Gastrocolorectal Surgery, General Surgery Center, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, Jilin, China; State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun, 130062, China.
| | - Xuming Deng
- Department of Gastrocolorectal Surgery, General Surgery Center, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, Jilin, China; State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun, 130062, China.
| | - Wei Li
- Department of Gastrocolorectal Surgery, General Surgery Center, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, Jilin, China.
| | - Jianfeng Wang
- Department of Gastrocolorectal Surgery, General Surgery Center, The First Hospital of Jilin University, 71 Xinmin Street, Changchun, 130021, Jilin, China; State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun, 130062, China.
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Tamilselvan P, Poulose TR, Appalaraju B, Sriramajayam L. Salmonella enterica serotype Choleraesuis: a rare pathogen isolated from perianal abscess. BMJ Case Rep 2024; 17:e258628. [PMID: 38538103 PMCID: PMC10982771 DOI: 10.1136/bcr-2023-258628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024] Open
Abstract
Infections with non-typhoidal salmonella (NTS) most commonly cause localised infections such as cutaneous abscesses in humans and are a leading source of foodborne illness. Here, we present a unique case of NTS Choleraesuis in a perianal abscess in an immunocompetent patient without any comorbidities.A woman in her late 40s was diagnosed with a perianal abscess with an unknown origin of infection. The patient has undergone an incision and drainage. Her pus culture and sensitivity report yielded Salmonella enterica serotype Choleraesuis. Then, the patient recovered after treatment with intravenous antibiotics and supportive treatment.We present an unusual case of S. enterica serotype Choleraesuis, which is rarely reported as a causative agent of perianal abscess in India. This case has been reported for its rarity in India.
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Affiliation(s)
- Priyadharsini Tamilselvan
- Department of Microbiology, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India
| | - Tracy Rosalin Poulose
- Department of General Surgery, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India
| | - Boppe Appalaraju
- Department of Microbiology, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India
| | - Lavanya Sriramajayam
- Department of Microbiology, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India
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Francois Watkins LK, Luna S, Bruce BB, Medalla F, Reynolds JL, Ray LC, Wilson EL, Caidi H, Griffin PM. Clinical Outcomes of Patients With Nontyphoidal Salmonella Infections by Isolate Resistance-Foodborne Diseases Active Surveillance Network, 10 US Sites, 2004-2018. Clin Infect Dis 2024; 78:535-543. [PMID: 37823421 PMCID: PMC10954391 DOI: 10.1093/cid/ciad631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/22/2023] [Accepted: 10/09/2023] [Indexed: 10/13/2023] Open
Abstract
BACKGROUND Nontyphoidal Salmonella causes an estimated 1.35 million US infections annually. Antimicrobial-resistant strains are a serious public health threat. We examined the association between resistance and the clinical outcomes of hospitalization, length-of-stay ≥3 days, and death. METHODS We linked epidemiologic data from the Foodborne Diseases Active Surveillance Network with antimicrobial resistance data from the National Antimicrobial Resistance Monitoring System (NARMS) for nontyphoidal Salmonella infections from 2004 to 2018. We defined any resistance as resistance to ≥1 antimicrobial and clinical resistance as resistance to ampicillin, azithromycin, ceftriaxone, ciprofloxacin, or trimethoprim-sulfamethoxazole (for the subset of isolates tested for all 5 agents). We compared outcomes before and after adjusting for age, state, race/ethnicity, international travel, outbreak association, and isolate serotype and source. RESULTS Twenty percent of isolates (1105/5549) had any resistance, and 16% (469/2969) had clinical resistance. Persons whose isolates had any resistance were more likely to be hospitalized (31% vs 28%, P = .01) or have length-of-stay ≥3 days (20% vs 16%, P = .01). Deaths were rare but more common among those with any than no resistance (1.0% vs 0.4%, P = .01). Outcomes for patients whose isolates had clinical resistance did not differ significantly from those with no resistance. After adjustment, any resistance (adjusted odds ratio 1.23, 95% confidence interval 1.04-1.46) remained significantly associated with hospitalization. CONCLUSIONS We observed a significant association between nontyphoidal Salmonella infections caused by resistant pathogens and likelihood of hospitalization. Clinical resistance was not associated with poorer outcomes, suggesting that factors other than treatment failure (eg, strain virulence, strain source, host factors) may be important.
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Affiliation(s)
- Louise K Francois Watkins
- Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Sarah Luna
- Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
- Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Beau B Bruce
- Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Felicita Medalla
- Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Jared L Reynolds
- Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Logan C Ray
- Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Elisha L Wilson
- Colorado Department of Public Health & Environment, Denver, Colorado, USA
| | - Hayat Caidi
- Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Patricia M Griffin
- Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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Lobertti CA, Gizzi FO, Magni C, Rial A, Chabalgoity JA, Yim L, Blancato VS, Asquith CRM, García Véscovi E. Enhancing colistin efficacy against Salmonella infections with a quinazoline-based dual therapeutic strategy. Sci Rep 2024; 14:5148. [PMID: 38429351 PMCID: PMC10907601 DOI: 10.1038/s41598-024-55793-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 02/27/2024] [Indexed: 03/03/2024] Open
Abstract
Colistin remains one of the last-resort therapies for combating infections caused by multidrug-resistant (MDR) Enterobacterales, despite its adverse nephro- and neuro-toxic effects. This study elucidates the mechanism of action of a non-antibiotic 4-anilinoquinazoline-based compound that synergistically enhances the effectiveness of colistin against Salmonella enterica. The quinazoline sensitizes Salmonella by deactivating intrinsic, mutational, and transferable resistance mechanisms that enable Salmonella to counteract the antibiotic impact colistin, together with an induced disruption to the electrochemical balance of the bacterial membrane. The attenuation of colistin resistance via the combined treatment approach also proves efficacious against E. coli, Klebsiella, and Acinetobacter strains. The dual therapy reduces the mortality of Galleria mellonella larvae undergoing a systemic Salmonella infection when compared to individual drug treatments. Overall, our findings unveil the potential of the quinazoline-colistin combined therapy as an innovative strategy against MDR bacteria.
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Affiliation(s)
- Carlos A Lobertti
- Instituto de Biología Molecular y Celular de Rosario, Consejo Nacional de Investigaciones Científicas y Tecnológicas, Universidad Nacional de Rosario, Predio CCT-CONICET Rosario, S2000, Santa Fe, Rosario, Argentina
| | - Fernán O Gizzi
- Instituto de Biología Molecular y Celular de Rosario, Consejo Nacional de Investigaciones Científicas y Tecnológicas, Universidad Nacional de Rosario, Predio CCT-CONICET Rosario, S2000, Santa Fe, Rosario, Argentina
| | - Christian Magni
- Instituto de Biología Molecular y Celular de Rosario, Consejo Nacional de Investigaciones Científicas y Tecnológicas, Universidad Nacional de Rosario, Predio CCT-CONICET Rosario, S2000, Santa Fe, Rosario, Argentina
| | - Analía Rial
- Departamento de Desarrollo Biotecnológico, Facultad de Medicina, Instituto de Higiene, Universidad de La República, Avda. Alfredo Navarro 3051, 11600, Montevideo, Uruguay
| | - José A Chabalgoity
- Departamento de Desarrollo Biotecnológico, Facultad de Medicina, Instituto de Higiene, Universidad de La República, Avda. Alfredo Navarro 3051, 11600, Montevideo, Uruguay
| | - Lucía Yim
- Departamento de Desarrollo Biotecnológico, Facultad de Medicina, Instituto de Higiene, Universidad de La República, Avda. Alfredo Navarro 3051, 11600, Montevideo, Uruguay
| | - Víctor S Blancato
- Instituto de Biología Molecular y Celular de Rosario, Consejo Nacional de Investigaciones Científicas y Tecnológicas, Universidad Nacional de Rosario, Predio CCT-CONICET Rosario, S2000, Santa Fe, Rosario, Argentina
| | - Christopher R M Asquith
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, 70211, Kuopio, Finland
| | - Eleonora García Véscovi
- Instituto de Biología Molecular y Celular de Rosario, Consejo Nacional de Investigaciones Científicas y Tecnológicas, Universidad Nacional de Rosario, Predio CCT-CONICET Rosario, S2000, Santa Fe, Rosario, Argentina.
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Chowdhury AR, Mukherjee D, Chatterjee R, Chakravortty D. Defying the odds: Determinants of the antimicrobial response of Salmonella Typhi and their interplay. Mol Microbiol 2024; 121:213-229. [PMID: 38071466 DOI: 10.1111/mmi.15209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 11/12/2023] [Accepted: 11/27/2023] [Indexed: 02/12/2024]
Abstract
Salmonella Typhi, the invasive serovar of S. enterica subspecies enterica, causes typhoid fever in healthy human hosts. The emergence of antibiotic-resistant strains has consistently challenged the successful treatment of typhoid fever with conventional antibiotics. Antimicrobial resistance (AMR) in Salmonella is acquired either by mutations in the genomic DNA or by acquiring extrachromosomal DNA via horizontal gene transfer. In addition, Salmonella can form a subpopulation of antibiotic persistent (AP) cells that can survive at high concentrations of antibiotics. These have reduced the effectiveness of the first and second lines of antibiotics used to treat Salmonella infection. The recurrent and chronic carriage of S. Typhi in human hosts further complicates the treatment process, as a remarkable shift in the immune response from pro-inflammatory Th1 to anti-inflammatory Th2 is observed. Recent studies have also highlighted the overlap between AP, persistent infection (PI) and AMR. These incidents have revealed several areas of research. In this review, we have put forward a timeline for the evolution of antibiotic resistance in Salmonella and discussed the different mechanisms of the same availed by the pathogen at the genotypic and phenotypic levels. Further, we have presented a detailed discussion on Salmonella antibiotic persistence (AP), PI, the host and bacterial virulence factors that can influence PI, and how both AP and PI can lead to AMR.
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Affiliation(s)
- Atish Roy Chowdhury
- Department of Microbiology and Cell Biology, Division of Biological Sciences, Indian Institute of Science, Bangalore, India
| | - Debapriya Mukherjee
- Department of Microbiology and Cell Biology, Division of Biological Sciences, Indian Institute of Science, Bangalore, India
| | - Ritika Chatterjee
- Department of Microbiology and Cell Biology, Division of Biological Sciences, Indian Institute of Science, Bangalore, India
| | - Dipshikha Chakravortty
- Department of Microbiology and Cell Biology, Division of Biological Sciences, Indian Institute of Science, Bangalore, India
- School of Biology, Indian Institute of Science Education and Research, Thiruvananthapuram, India
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Li S, Liu H, Shu J, Li Q, Liu Y, Feng H, Wang J, Deng X, Zhang Y, Guo Z, Qiu J. Fisetin inhibits Salmonella Typhimurium type III secretion system regulator HilD and reduces pathology in vivo. Microbiol Spectr 2024; 12:e0240623. [PMID: 38078719 PMCID: PMC10783070 DOI: 10.1128/spectrum.02406-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 11/14/2023] [Indexed: 01/13/2024] Open
Abstract
IMPORTANCE Salmonella spp. remains a major worldwide health concern that causes significant morbidity and mortality in both humans and animals. The spread of antimicrobial resistant strains has declined the efficacy of conventional chemotherapy. Thus, novel anti-infection drugs or strategies are needed. Anti-virulence strategy represents one of the promising means for the treatment of bacterial infections. In this study, we found that the natural compound fisetin could inhibit Salmonella invasion of host cells by targeting SPI-1 regulation. Fisetin treatment impaired the interaction of the regulatory protein HilD with the promoters of its target genes, thereby suppressing the expression of T3SS-1 effectors as well as structural proteins. Moreover, fisetin treatment could reduce pathology in the Salmonella murine infection model. Collectively, our results suggest that fisetin may serve as a promising lead compound for the development of anti-Salmonella drugs.
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Affiliation(s)
- Siqi Li
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Center for Pathogen Biology and Infectious Diseases, The First Hospital of Jilin University , Changchun, Jilin, China
| | - Hongtao Liu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Center for Pathogen Biology and Infectious Diseases, The First Hospital of Jilin University , Changchun, Jilin, China
| | - Jingyan Shu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Center for Pathogen Biology and Infectious Diseases, The First Hospital of Jilin University , Changchun, Jilin, China
| | - Quanshun Li
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, China
| | - Yuan Liu
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Haihua Feng
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Center for Pathogen Biology and Infectious Diseases, The First Hospital of Jilin University , Changchun, Jilin, China
| | - Jianfeng Wang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Center for Pathogen Biology and Infectious Diseases, The First Hospital of Jilin University , Changchun, Jilin, China
| | - Xuming Deng
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Center for Pathogen Biology and Infectious Diseases, The First Hospital of Jilin University , Changchun, Jilin, China
| | - Yong Zhang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Center for Pathogen Biology and Infectious Diseases, The First Hospital of Jilin University , Changchun, Jilin, China
| | - Zhimin Guo
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Center for Pathogen Biology and Infectious Diseases, The First Hospital of Jilin University , Changchun, Jilin, China
| | - Jiazhang Qiu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, College of Veterinary Medicine, Jilin University, Center for Pathogen Biology and Infectious Diseases, The First Hospital of Jilin University , Changchun, Jilin, China
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Norisyam Y, Jayamalar T, Foo CH, Ohn KM. Typhoid spondylodiscitis of the cervical spine. BMJ Case Rep 2023; 16:e255033. [PMID: 38129083 DOI: 10.1136/bcr-2023-255033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023] Open
Abstract
Spinal infection comprises pyogenic and non-pyogenic spondylodiscitis. This condition may manifest with non-specific clinical symptoms, elevated infective parameters and imaging findings that are difficult to distinguish. The cornerstone of a definitive diagnosis and subsequent successful treatment lies in tissue analysis through culture and histopathological studies. In this context, we present a case of Salmonella pyogenic spondylodiscitis affecting the C5/C6 vertebrae, complicated by Salmonella bacteraemia and characterised by mechanical neck pain that curtails daily activities and overall functioning, although without neurological deficits. The uniqueness of this case stems from its occurrence in an immunocompetent individual from a non-endemic area, with no identifiable sources of Salmonella infection or preceding gastrointestinal symptoms.
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Affiliation(s)
- Yusoff Norisyam
- Department of Orthopaedic, Hospital Sultan Ismail, Johor Bharu, Malaysia
| | | | - Choong Hoon Foo
- Orthopaedic Department, Hospital Queen Elizabeth, Kota Kinabalu, Malaysia
| | - Khin Maung Ohn
- Department of Orthopaedic Surgery, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia
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Han L, Zang T, Tan L, Liang D, Long T, Liu X, Shen X, Ren H, Li Z, Lu Z, Tang S, Liao X, Liu Y, Zhang C, Sun J. Self-assembly of H 2S-responsive nanoprodrugs based on natural rhein and geraniol for targeted therapy against Salmonella Typhimurium. J Nanobiotechnology 2023; 21:483. [PMID: 38104180 PMCID: PMC10725032 DOI: 10.1186/s12951-023-02256-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 12/07/2023] [Indexed: 12/19/2023] Open
Abstract
Salmonellosis is a globally extensive food-borne disease, which threatens public health and results in huge economic losses in the world annually. The rising prevalence of antibiotic resistance in Salmonella poses a significant global concern, emphasizing an imperative to identify novel therapeutic agents or methodologies to effectively combat this predicament. In this study, self-assembly hydrogen sulfide (H2S)-responsive nanoprodrugs were fabricated with poly(α-lipoic acid)-polyethylene glycol grafted rhein and geraniol (PPRG), self-assembled into core-shell nanoparticles via electrostatic, hydrophilic and hydrophobic interactions, with hydrophilic exterior and hydrophobic interior. The rhein and geraniol are released from self-assembly nanoprodrugs PPRG in response to Salmonella infection, which is known to produce hydrogen sulfide (H2S). PPRG demonstrated stronger antibacterial activity against Salmonella compared with rhein or geraniol alone in vitro and in vivo. Additionally, PPRG was also able to suppress the inflammation and modulate gut microbiota homeostasis. In conclusion, the as-prepared self-assembly nanoprodrug sheds new light on the design of natural product active ingredients and provides new ideas for exploring targeted therapies for specific Enteropathogens. Graphical illustration for construction of self-assembly nanoprodrugs PPRG and its antibacterial and anti-inflammatory activities on experimental Salmonella infection in mice.
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Affiliation(s)
- Lu Han
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou, 510642, People's Republic of China
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Henry Fok School of Biology and Agriculture, Shaoguan University, Shaoguan, 512005, People's Republic of China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics, Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Tao Zang
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou, 510642, People's Republic of China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics, Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Lulu Tan
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou, 510642, People's Republic of China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics, Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Dunsheng Liang
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou, 510642, People's Republic of China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics, Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Tengfei Long
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou, 510642, People's Republic of China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics, Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Xuwei Liu
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou, 510642, People's Republic of China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics, Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Xiaofan Shen
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou, 510642, People's Republic of China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics, Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Hao Ren
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou, 510642, People's Republic of China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics, Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, People's Republic of China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, People's Republic of China
| | - ZhiPeng Li
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou, 510642, People's Republic of China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics, Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Zhaoxiang Lu
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou, 510642, People's Republic of China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics, Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Shengqiu Tang
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Henry Fok School of Biology and Agriculture, Shaoguan University, Shaoguan, 512005, People's Republic of China
| | - Xiaoping Liao
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou, 510642, People's Republic of China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics, Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, People's Republic of China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, People's Republic of China
| | - Yahong Liu
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou, 510642, People's Republic of China
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics, Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, People's Republic of China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, People's Republic of China
| | - Chaoqun Zhang
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, People's Republic of China.
| | - Jian Sun
- State Key Laboratory for Animal Disease Control and Prevention, South China Agricultural University, Guangzhou, 510642, People's Republic of China.
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics, Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, People's Republic of China.
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, 225009, People's Republic of China.
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9
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Mokraoui NR, Ganim R, Paez A. Chest wall abscess and costochondritis due to Salmonella enterica serotype Choleraesuis: a case report. J Med Case Rep 2023; 17:502. [PMID: 38053106 DOI: 10.1186/s13256-023-04229-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 10/26/2023] [Indexed: 12/07/2023] Open
Abstract
BACKGROUND Salmonella enterica serotype Choleraesuis infections usually cause self-limited gastrointestinal diseases. Extra-abdominal infections are often secondary to bacteremia in immunocompromised individuals and are relatively rare in immunocompetent hosts. CASE PRESENTATION A 65-year-old Caucasian female initially presented to the thoracic surgery clinic due to a poorly healing wound on her chest. Her condition started after a mechanical fall hitting her chest with interval development of a tender lump that later spontaneously drained. A chest computed tomography scan with intravenous contrast demonstrated an abnormal infiltration with small foci of fluid and air consistent with a small abscess anterior to the left seventh costal cartilage. Aspirate culture of the abscess grew S. enterica serotype Choleraesuis susceptible to ampicillin and trimethoprim/sulfamethoxazole. The patient had no prior history of signs or symptoms of gastrointestinal infection. Blood cultures were negative. With a background of penicillin allergy, she was treated with trimethoprim/sulfamethoxazole, and later with ceftriaxone due to persistent drainage of the wound. Follow-up chest computed tomography scan with intravenous (IV) contrast showed continued abnormal findings previously seen in the computed tomography scan with the appearance of a sinus tract. The patient subsequently underwent surgical debridement and partial resection of the left seventh costochondral cartilage and excision of the fistula. She had an uneventful recovery and complete resolution of her condition. CONCLUSION We report a rare case of chest wall abscess with associated costochondritis due to S. enterica serotype Choleraesuis in a patient with no evidence of immunodeficiency nor history of bacteremia. Extraintestinal infections due to Salmonella without documented bacteremia have been previously reported in the literature. History of local trauma to the affected area might contribute to the seeding of infection. Diagnosis is often accomplished by clinical evaluation and culture of the affected area. Treatment often involves targeted antibiotic therapy but may require surgical intervention to achieve source control and cure.
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Affiliation(s)
- Nassim R Mokraoui
- Division of Infectious Diseases, UMass Chan Medical School-Baystate, Springfield, MA, 01199, USA.
| | - Rose Ganim
- Division of Thoracic Surgery, UMass Chan Medical School-Baystate, Springfield, MA, 01199, USA
| | - Armando Paez
- Division of Infectious Diseases, UMass Chan Medical School-Baystate, Springfield, MA, 01199, USA
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10
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Su Y, Sun T, Gao J, Zhang C, Liu X, Bi C, Wang J, Shan A. Anti-Proteolytic Peptide R7I Protects the Intestinal Barrier and Alleviates Fatty Acid Malabsorption in Salmonella typhimurium-Infected Mice. Int J Mol Sci 2023; 24:16409. [PMID: 38003599 PMCID: PMC10670956 DOI: 10.3390/ijms242216409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 10/26/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
With a wide range of hosts, environmental adaptation, and antibiotic resistance, Salmonella typhimurium is one of the most common causes of food poisoning in the world. Infection with Salmonella typhimurium not only results in intestinal inflammation but also damages the intestinal barrier and interferes with the host's ability to absorb nutrients. It is imperative to find alternatives to antibiotics for eradicating bacteria, reducing intestinal damage, and reestablishing nutrient absorption, especially given that antibiotics are currently prohibited. This research aims to understand the protective role of anti-proteolytic peptide R7I on the gut in the setting of Salmonella typhimurium infection and its impact on nutritional absorption, maybe offering an alternative to antibiotics for bacterial killing. The findings demonstrated that R7I reduced the production of inflammatory factors, including IL-6, TNF-α, and L-1β in the jejunum and decreased the expression of genes like TLR4 and NF-κB in the jejunum (p < 0.05). R7I enhanced antioxidant capacity and preserved the antioxidant/pro-oxidant balance in the jejunum (p < 0.05). R7I also normalized intestinal shape and restored tight junction protein expression. Fatty acid binding protein 2 (FABP2) and fatty acid transport protein 4 (FATP4) expression in the jejunum was restored by R7I. In addition, serum-free fatty acids and lipid metabolites were significantly higher in the R7I group than in the control group (p < 0.05). Overall, the anti-enzyme peptide R7I maintained the healthy state of the intestine and alleviated the abnormal fatty acid absorption caused by bacterial infection.
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Affiliation(s)
| | | | | | | | | | | | - Jiajun Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; (Y.S.); (T.S.); (J.G.); (C.Z.); (X.L.); (C.B.)
| | - Anshan Shan
- College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; (Y.S.); (T.S.); (J.G.); (C.Z.); (X.L.); (C.B.)
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11
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Hanumunthadu B, Kanji N, Owino N, Ferreira Da Silva C, Robinson H, White R, Ferruzzi P, Nakakana U, Canals R, Pollard AJ, Ramasamy M. Salmonella Vaccine Study in Oxford (SALVO) trial: protocol for an observer-participant blind randomised placebo-controlled trial of the iNTS-GMMA vaccine within a European cohort. BMJ Open 2023; 13:e072938. [PMID: 37963701 PMCID: PMC10649500 DOI: 10.1136/bmjopen-2023-072938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 10/03/2023] [Indexed: 11/16/2023] Open
Abstract
INTRODUCTION Invasive non-typhoidal Salmonellosis (iNTS) is mainly caused by Salmonella enterica serovars Typhimurium and Enteritidis and is estimated to result in 77 500 deaths per year, disproportionately affecting children under 5 years of age in sub-Saharan Africa. Invasive non-typhoidal Salmonellae serovars are increasingly acquiring resistance to first-line antibiotics, thus an effective vaccine would be a valuable tool in reducing morbidity and mortality from infection. While NTS livestock vaccines are in wide use, no licensed vaccines exist for use in humans. Here, a first-in-human study of a novel vaccine (iNTS-GMMA) containing S. Typhimurium and S. Enteritidis Generalised Modules for Membrane Antigens (GMMA) outer membrane vesicles is presented. METHOD AND ANALYSIS The Salmonella Vaccine Study in Oxford is a randomised placebo-controlled participant-observer blind phase I study of the iNTS-GMMA vaccine. Healthy adult volunteers will be randomised to receive three intramuscular injections of the iNTS-GMMA vaccine, containing equal quantities of S. Typhimurium and S. Enteritidis GMMA particles adsorbed on Alhydrogel, or an Alhydrogel placebo at 0, 2 and 6 months. Participants will be sequentially enrolled into three groups: group 1, 1:1 randomisation to low dose iNTS-GMMA vaccine or placebo; group 2, 1:1 randomisation to full dose iNTS-GMMA vaccine or placebo; group 3, 2:1 randomisation to full dose or lower dose (dependant on DSMC reviews of groups 1 and 2) iNTS-GMMA vaccine or placebo.The primary objective is safety and tolerability of the vaccine. The secondary objective is immunogenicity as measured by O-antigen based ELISA. Further exploratory objectives will characterise the expanded human immune profile. ETHICS AND DISSEMINATION Ethical approval for this study has been obtained from the South Central-Oxford A Research Ethics Committee (Ethics REF:22/SC/0059). Appropriate documentation and regulatory approvals have been acquired. Results will be disseminated via peer-reviewed articles and conferences. TRIAL REGISTRATION NUMBER EudraCT Number: 2020-000510-14.
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Affiliation(s)
- Brama Hanumunthadu
- Department of Paediatrics, University of Oxford, Oxford Vaccine Group, Oxford, Oxfordshire, UK
| | - Nasir Kanji
- Department of Paediatrics, University of Oxford, Oxford Vaccine Group, Oxford, Oxfordshire, UK
| | - Nelly Owino
- Department of Paediatrics, University of Oxford, Oxford Vaccine Group, Oxford, Oxfordshire, UK
| | - Carla Ferreira Da Silva
- Department of Paediatrics, University of Oxford, Oxford Vaccine Group, Oxford, Oxfordshire, UK
| | - Hannah Robinson
- Department of Paediatrics, University of Oxford, Oxford Vaccine Group, Oxford, Oxfordshire, UK
- NIHR Oxford Biomedical Research Centre, Oxford, Oxfordshire, UK
| | - Rachel White
- Department of Paediatrics, University of Oxford, Oxford Vaccine Group, Oxford, Oxfordshire, UK
| | | | | | - Rocio Canals
- GSK Vaccines Institute for Global Health, Siena, Italy
| | - Andrew J Pollard
- Department of Paediatrics, University of Oxford, Oxford Vaccine Group, Oxford, Oxfordshire, UK
| | - Maheshi Ramasamy
- Department of Paediatrics, University of Oxford, Oxford Vaccine Group, Oxford, Oxfordshire, UK
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12
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Cohen R, Minodier P, Hau I, Filleron A, Werner A, Haas H, Raymond J, Thollot F, Bellaïche M. Anti-infective treatment of gastro-intestinal tract infections in children. Infect Dis Now 2023; 53:104784. [PMID: 37739226 DOI: 10.1016/j.idnow.2023.104784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 09/12/2023] [Indexed: 09/24/2023]
Abstract
Gastroenteritis is most often viral in origin and Rotavirus and Norovirus most frequently implicated in young children. Stool-based multiplex Polymerase Chain Reaction (PCR) can detect bacteria, viruses or parasites that may or may not be responsible for gastroenteritis (colonization). While the etiological profile of these digestive infections has greatly benefited from PCR, in the absence of underlying pathologies the presence of potential pathogens does not justify anti-infectious treatment. Indeed, very few bacterial causes require antibiotic treatment, apart from shigellosis, severe forms of salmonellosis and a few Campylobacter sp. infections. The development of antibiotic resistance in Salmonella sp., Shigella sp. and Campylobacter sp. is a cause for concern worldwide, limiting therapeutic options. The antibiotics proposed in this guide are in line with the joint recommendations of the European Society of Pediatric Infectious Diseases and the European Society of Pediatric Gastroenterology and Nutrition. Azithromycin is preferentially used to treat infections with Shigella sp. or Campylobacter sp. Ceftriaxone and ciprofloxacin are recommended for salmonellosis requiring antibiotic therapy. Empirical treatments without bacterial identification are not indicated except in cases of severe sepsis or in subjects at risk (e.g., sickle-cell disease). Metronidazole should be prescribed only for acute intestinal amebiasis after microbiological confirmation.
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Affiliation(s)
- Robert Cohen
- Université Paris Est, IMRB-GRC GEMINI, 94000 Créteil, France; Unité Court Séjour, Petits Nourrissons, Service de Néonatologie, Centre Hospitalier Intercommunal de Créteil, France; Association Clinique et Thérapeutique Infantile du Val de Marne (ACTIV), Créteil, France; Groupe de Pathologie Infectieuse Pédiatrique de la Société Française de Pédiatrie (GPIP), Créteil, France.
| | - Philippe Minodier
- Groupe de Pathologie Infectieuse Pédiatrique de la Société Française de Pédiatrie (GPIP), Créteil, France; CHU de Marseille (Hôpital nord), Marseille, France
| | - Isabelle Hau
- Université Paris Est, IMRB-GRC GEMINI, 94000 Créteil, France; Groupe de Pathologie Infectieuse Pédiatrique de la Société Française de Pédiatrie (GPIP), Créteil, France; Department of General Pediatrics, Centre Hospitalier Intercommunal de Créteil, France
| | - Anne Filleron
- Department of Pediatrics, CHU de Nîmes, Univ. Montpellier, Nîmes, France
| | - Andreas Werner
- Groupe de Pathologie Infectieuse Pédiatrique de la Société Française de Pédiatrie (GPIP), Créteil, France; Primary Care Paediatrician, Association Française de Pédiatrie Ambulatoire, France
| | - Hervé Haas
- Groupe de Pathologie Infectieuse Pédiatrique de la Société Française de Pédiatrie (GPIP), Créteil, France; Neonatal Pediatrics Department Princess Grace Hospital, Monaco
| | - Josette Raymond
- Groupe de Pathologie Infectieuse Pédiatrique de la Société Française de Pédiatrie (GPIP), Créteil, France; Service de Microbiologie, Hôpital Kremlin Bicêtre, France
| | - Franck Thollot
- Groupe de Pathologie Infectieuse Pédiatrique de la Société Française de Pédiatrie (GPIP), Créteil, France; Primary Care Paediatrician, Association Française de Pédiatrie Ambulatoire, France
| | - Marc Bellaïche
- Service de Gastro-entérologie Pédiatrique - Hôpital Robert-Debré - AP-HP, France
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13
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Chanamé-Pinedo L, Franz E, van den Beld M, Veldman K, Pijnacker R, Mughini-Gras L. Increased antimicrobial resistance among non-typhoidal Salmonella infections in international travellers returning to the Netherlands. J Travel Med 2023; 30:taad079. [PMID: 37294620 PMCID: PMC10628769 DOI: 10.1093/jtm/taad079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/29/2023] [Accepted: 06/01/2023] [Indexed: 06/11/2023]
Abstract
Highlights Increased fluoroquinolone resistance in the two most common non-typhoidal Salmonella (NTS) serotypes among travellers returning to the Netherlands.Resistant Salmonella Enteritidis infections are most likely to be acquired abroad, specifically outside Europe.This study highlights the importance of travel history when patients with NTS infections require empiric antimicrobial treatment.
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Affiliation(s)
- Linda Chanamé-Pinedo
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven 3721 MA, the Netherlands
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht 3508 TC, the Netherlands
| | - Eelco Franz
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven 3721 MA, the Netherlands
| | - Maaike van den Beld
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven 3721 MA, the Netherlands
| | - Kees Veldman
- Wageningen Bioveterinary Research (WBVR), Lelystad 8200 AB, the Netherlands
| | - Roan Pijnacker
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven 3721 MA, the Netherlands
| | - Lapo Mughini-Gras
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment (RIVM), Bilthoven 3721 MA, the Netherlands
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht 3508 TC, the Netherlands
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14
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Shome A, Da Silva PP, Wenger PN, Kumta JN. Neonatal Salmonella Meningitis With Subdural Empyema: A Case Report. Pediatr Infect Dis J 2023; 42:e390-e392. [PMID: 37310891 DOI: 10.1097/inf.0000000000003996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- Ashna Shome
- Department of Pediatrics Jacobi Medical Center New York, NY
| | - Poliana P Da Silva
- Department of Pediatrics, Children Hospital of New Jersey at Newark Beth Israel, RWJ Barnabas Health, Newark, New Jersey
| | - Peter N Wenger
- Department of Pediatrics, Children Hospital of New Jersey at Newark Beth Israel, RWJ Barnabas Health, Newark, New Jersey
| | - Jayshree N Kumta
- Department of Pediatrics, Children Hospital of New Jersey at Newark Beth Israel, RWJ Barnabas Health, Newark, New Jersey
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15
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Basu S, Vignesh P, Prithiviraj K, Nadig PL, Sekar A, Rawat A. Infections due to Salmonella sp. in children with chronic granulomatous disease: Our experience from North India. Clin Immunol 2023; 255:109769. [PMID: 37704015 DOI: 10.1016/j.clim.2023.109769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 08/05/2023] [Accepted: 09/08/2023] [Indexed: 09/15/2023]
Abstract
Infections with non-typhoidal Salmonella sp. have been documented in children with chronic granulomatous disease (CGD), but the prevalence of salmonella infection in children with CGD in underdeveloped countries is unknown. We assessed the clinical profiles of CGD patients diagnosed at our tertiary care centre in north India and had Salmonella sp.infections. We found three patients with Salmonella sp. bloodstream infections (2-proven, 1-probable) among the 99 CGD patients. After receiving cotrimoxazole prophylaxis following a CGD diagnosis, we noted that none of our patients experienced non-typhoidal salmonella infection. One patient experienced severe typhoidal bacteremia despite receipt of cotrimoxazole prophylaxis. This patient required numerous hospital admissions and prolonged intravenous antibiotic regimen. We suggest that vaccination with killed typhoidal vaccines should be regularly given to children with CGD in order to avoid typhoidal bacteremia, in addition to cotrimoxazole prophylaxis and a focus on good hand and food hygiene.
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Affiliation(s)
- Suprit Basu
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Pandiarajan Vignesh
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India.
| | - K Prithiviraj
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Pallavi L Nadig
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Aravind Sekar
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
| | - Amit Rawat
- Pediatric Allergy Immunology Unit, Department of Pediatrics, Postgraduate Institute of Medical Education and Research, Chandigarh 160012, India
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16
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Liu RH, Sun AQ, Liao Y, Tang ZX, Zhang SH, Shan X, Hu JT. Lactiplantibacillus plantarum Regulated Intestinal Microbial Community and Cytokines to Inhibit Salmonella typhimurium Infection. Probiotics Antimicrob Proteins 2023; 15:1355-1370. [PMID: 36074298 DOI: 10.1007/s12602-022-09987-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2022] [Indexed: 11/25/2022]
Abstract
Lactic acid bacteria (LAB) are recognized as food-grade safe microorganisms and have many beneficial effects. LAB could maintain the host intestinal homeostasis and regulate intestinal microbial community to exert antibacterial effects. In this study, Lactiplantibacillus plantarum (L. plantarum, Lp01) strain isolated from pig intestine was orally administered to C57BL/6 mice, and mice were then infected with Salmonella typhimurium (ATCC14028). The protective effects of L. plantarum were evaluated by monitoring body weight loss, survival rates, bacterial loads in tissue, colon histopathology analysis, and cytokine secretion. 16S rRNA gene sequencing was also utilized to detect the dynamics of the blind gut microbial community in mice. We found that L. plantarum could significantly reduce the body weight loss and improve the survival rates. The survival rate in the L. P-Sty group was up to 67.5%, which was much higher than that in the STY group (25%). Counting of bacterial loads displayed that the colony-forming unit (CFU) of S. typhimurium in the spleen (p < 0.05) and the liver (p < 0.05) from L. P-Sty group both decreased, compared with STY group. Intestinal histopathology showed that it alleviated the intestinal injury caused by Salmonella, inhibited the secretion of pro-inflammatory cytokines, and promoted anti-inflammatory cytokines (p < 0. 01). In addition, L. plantarum also significantly ameliorated the intestinal gut microbiome disturbance caused by Salmonella. It displayed an obvious increase of beneficial bacteria including Lactobacillus and Bacteroidetes and reduction of pathogenic bacteria like Proteobacteria. In conclusion, L. plantarum could regulate microbial community to inhibit Salmonella typhimurium infection.
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Affiliation(s)
- Rui-Han Liu
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, China
| | - An-Qi Sun
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Ye Liao
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Zheng-Xu Tang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Shi-Han Zhang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Xin Shan
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, China
| | - Jing-Tao Hu
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, China.
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17
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Rosso F, Rebellón-Sánchez DE, Llanos-Torres J, Hurtado-Bermudez LJ, Ayerbe L, Suárez JH, Orozco-Echeverri N, Rojas-Perdomo CC, Zapata-Vasquez IL, Patiño-Niño J, Parra-Lara LG. Clinical and microbiological characterization of Salmonella spp. isolates from patients treated in a university hospital in South America between 2012-2021: a cohort study. BMC Infect Dis 2023; 23:625. [PMID: 37749501 PMCID: PMC10519077 DOI: 10.1186/s12879-023-08589-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 09/06/2023] [Indexed: 09/27/2023] Open
Abstract
BACKGROUND Salmonellosis is a major cause of morbidity and mortality and one of the most frequent etiologies of diarrhea in the world. Mortality due to Salmonellosis in Latin America still poorly understood, and there is a lack of studies that evaluate resistance and clinical manifestations. The aims of this study were to characterize patients infected with Salmonella spp. seen in a university hospital in Colombia between 2012 and 2021, to evaluate trends in antibiotic resistance and to determine the proportion of overall mortality and related factors. METHODS Retrospective observational study. All patients with microbiological diagnosis of Salmonella spp. were included. The sociodemographic, clinical and microbiological characteristics were described, and the proportion of antibiotic resistant isolates per year was estimated. The prevalence of mortality according to age groups was calculated. Log binomial regression models were used to establish factors associated with mortality. RESULTS Five hundred twenty-two patients were analyzed. Salmonellosis accounted for 0.01% of all medical consultations. The median age was 16 years old. The most common clinical presentation was gastroenteric syndrome (77.1%) and symptoms included diarrhea (79.1%), fever (66.7%), abdominal pain (39.6%) and vomiting (35.2%). Of the Salmonella spp. isolates, 78.2% were not classified, 19.1% corresponded to non-typhoidal Salmonella and 2.7% to Salmonella typhi. Mortality occurs in 4.02% of the patients and was higher in patients with hematologic malignancy (11.6%). When analyzing by age group, the proportion of deaths was 2.8% in patients aged 15 years or younger, while in those older than 15 years it was 5.4%. Factors associated to mortality where bacteremia (aPR = 3.41 CI95%: 1.08-10.76) and to require treatment in the ICU (aPR = 8.13 CI95%: 1.82-37.76). In the last 10 years there has been a steady increase in resistance rates to ciprofloxacin, ampicillin, ampicillin/sulbactam and ceftriaxone, reaching rates above 60% in recent years. CONCLUSIONS Despite improved availability of antibiotics for the treatment of salmonellosis in the past decades, mortality due to salmonellosis continues occurring in children and adults, mainly in patients with hematological malignancies and bacteremia. Antibiotic resistance rates have increased significantly over the last 10 years. Public health strategies for the control of this disease should be strengthened, especially in vulnerable populations.
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Affiliation(s)
- Fernando Rosso
- Fundación Valle del Lili, Centro de Investigaciones Clínicas (CIC), Carrera 98 #18-49, 760031, Cali, Colombia.
- Fundación Valle del Lili, Cali, Departamento de Medicina Interna, Servicio de Enfermedades Infecciosas, Carrera 98 #18-49, 760031, Cali, Colombia.
- Universidad Icesi, Facultad de Ciencias de la Salud, Calle 18 No. 122-135, Cali, 760031, Colombia.
| | - David E Rebellón-Sánchez
- Fundación Valle del Lili, Centro de Investigaciones Clínicas (CIC), Carrera 98 #18-49, 760031, Cali, Colombia.
- Fundación Valle del Lili, Cali, Departamento de Medicina Interna, Servicio de Enfermedades Infecciosas, Carrera 98 #18-49, 760031, Cali, Colombia.
| | - Julio Llanos-Torres
- Fundación Valle del Lili, Centro de Investigaciones Clínicas (CIC), Carrera 98 #18-49, 760031, Cali, Colombia
- Fundación Valle del Lili, Cali, Departamento de Medicina Interna, Servicio de Enfermedades Infecciosas, Carrera 98 #18-49, 760031, Cali, Colombia
| | - Leidy Johanna Hurtado-Bermudez
- Fundación Valle del Lili, Centro de Investigaciones Clínicas (CIC), Carrera 98 #18-49, 760031, Cali, Colombia
- Universidad Icesi, Facultad de Ciencias de la Salud, Calle 18 No. 122-135, Cali, 760031, Colombia
| | - Laura Ayerbe
- Universidad Icesi, Facultad de Ciencias de la Salud, Calle 18 No. 122-135, Cali, 760031, Colombia
| | - John Harold Suárez
- Universidad Icesi, Facultad de Ciencias de la Salud, Calle 18 No. 122-135, Cali, 760031, Colombia
| | - Nicolás Orozco-Echeverri
- Universidad Icesi, Facultad de Ciencias de la Salud, Calle 18 No. 122-135, Cali, 760031, Colombia
| | | | - Isabel Lucia Zapata-Vasquez
- Fundación Valle del Lili, Centro de Investigaciones Clínicas (CIC), Carrera 98 #18-49, 760031, Cali, Colombia
| | - Jaime Patiño-Niño
- Fundación Valle del Lili, Cali, Departamento de Pediatría, Servicio de Enfermedades Infecciosas, Carrera 98 #18-49, 760031, Cali, Colombia
| | - Luis Gabriel Parra-Lara
- Fundación Valle del Lili, Centro de Investigaciones Clínicas (CIC), Carrera 98 #18-49, 760031, Cali, Colombia
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Majeed I, Khan SU, Khan ZR, Hayat S, Ullah I, Ali A. Salmonella meningitis in a young child from Pakistan: a case report. J Med Case Rep 2023; 17:390. [PMID: 37705001 PMCID: PMC10500717 DOI: 10.1186/s13256-023-04128-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 08/14/2023] [Indexed: 09/15/2023] Open
Abstract
BACKGROUND Salmonella meningitis is a rare but serious complication of Salmonella infection, primarily affecting infants, children, and immunocompromised individuals. CASE PRESENTATION We present a case of a two-and-a-half-year-old Asian boy who developed Salmonella meningitis along with pneumonia and respiratory failure. Initially, he experienced symptoms of loose motions, fever, and irritability, which progressed to neck stiffness and brisk reflexes. Cerebrospinal fluid (CSF) analysis confirmed Salmonella typhi in the CSF. Due to the worsening condition, the patient was admitted to the intensive care unit, intubated, and switched to meropenem as the antibiotic of choice after an initial empiric therapy with ceftriaxone and vancomycin. With appropriate treatment, the patient showed significant improvement, including resolution of fever and respiratory symptoms. CONCLUSION Management of Salmonella meningitis is often challenging primarily because of the fact that the empiric therapy for meningitis may not always provide coverage to the multi-drug resistant Salmonella species found in South Asia. Prompt administration of appropriate antibiotics based on sensitivity testing is crucial for successful management. This case emphasizes the importance of early recognition and effective management of this uncommon yet severe complication of Salmonella infection.
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Affiliation(s)
| | | | | | | | | | - Asim Ali
- Lady Reading Hospital, Peshawar, Pakistan
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19
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Ford L, Shah HJ, Eikmeier D, Hanna S, Chen J, Tagg KA, Langley G, Payne DC, Plumb ID. Antimicrobial-Resistant Nontyphoidal Salmonella Infection Following International Travel-United States, 2018-2019. J Infect Dis 2023; 228:533-541. [PMID: 37129066 PMCID: PMC10839744 DOI: 10.1093/infdis/jiad128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/24/2023] [Accepted: 04/27/2023] [Indexed: 05/03/2023] Open
Abstract
BACKGROUND Antimicrobial resistance in nontyphoidal Salmonella (NTS) can limit treatment options. We assessed the contribution of international travel to antimicrobial-resistant NTS infections. METHODS We describe NTS infections that were reported to the Foodborne Diseases Active Surveillance Network during 2018-2019 and screened for genetic resistance determinants, including those conferring decreased susceptibility to first-line agents (ciprofloxacin, ceftriaxone, or azithromycin). We used multivariable logistic regression to assess the association between resistance and international travel during the 7 days before illness began. We estimated the contribution of international travel to resistance using population-attributable fractions, and we examined reported antimicrobial use. RESULTS Among 9301 NTS infections, 1159 (12%) occurred after recent international travel. Predicted resistance to first-line antimicrobials was more likely following travel; the adjusted odds ratio varied by travel region and was highest after travel to Asia (adjusted odds ratio, 7.2 [95% confidence interval, 5.5-9.5]). Overall, 19% (95% confidence interval, 17%-22%) of predicted resistance to first-line antimicrobials was attributable to international travel. More travelers than nontravelers receiving ciprofloxacin or other fluoroquinolones had isolates with predicted resistance to fluoroquinolones (29% vs 9%, respectively; P < .01). CONCLUSIONS International travel is a substantial risk factor for antimicrobial-resistant NTS infections. Understanding risks of resistant infection could help target prevention efforts.
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Affiliation(s)
- Laura Ford
- Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
- Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Hazel J. Shah
- Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Dana Eikmeier
- Minnesota Department of Health, St Paul, Minnesota, USA
| | - Samir Hanna
- Tennessee Department of Health, Nashville, Tennessee, USA
| | - Jessica Chen
- Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Kaitlin A. Tagg
- Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
- ASRT, Inc., Smyrna Georgia, USA
| | - Gayle Langley
- Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Daniel C. Payne
- Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Ian D. Plumb
- Division of Foodborne, Waterborne, and Environmental Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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20
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Huang FC, Huang SC. The Pivotal Role of Aryl Hydrocarbon Receptor-Regulated Tight Junction Proteins and Innate Immunity on the Synergistic Effects of Postbiotic Butyrate and Active Vitamin D3 to Defense against Microbial Invasion in Salmonella Colitis. Nutrients 2023; 15:nu15020305. [PMID: 36678175 PMCID: PMC9860786 DOI: 10.3390/nu15020305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/23/2022] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
Our recent report illustrated the unitedly advantageous effects of postbiotic butyrate on active vitamin D3 (VD3)-orchestrated innate immunity in Salmonella colitis. There is growing awareness that aryl hydrocarbon receptor (AhR) can regulate intestinal immunity and barrier function, through modulating cecal inflammation and junction proteins expression. Hence, we researched the participation of AhR-regulated tight junction functions on the united effects of butyrate and VD3 on intestinal defense to Salmonella infection. Salmonella colitis model were elicited by oral gavage with 1 × 108 CFU of a S. typhimurium wild-type strain SL1344 in C57BL/6 mice. Before and after the colitis generation, mice were fed with butyrate and/or VD3 by oral gavage in the absence or presence of intraperitoneal injection of AhR inhibitor for 4 and 7 days, respectively. We observed that butyrate and VD3 could concert together to reduce the invasion of Salmonella in colitis mice by enhancing cecal cytokines and antimicrobial peptides expression and reducing zonulin and claudin-2 protein expressions in mucosal stain, compared to single treatment, which were counteracted by AhR inhibitor. It implies that AhR is involved in the united effects of butyrate and VD3 on the intestinal defense to Salmonella infection in colitis mice. This study discloses the promising alternative therapy of combining postbiotic and VD3 for invasive Salmonellosis and the pivotal role of AhR pathway.
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Affiliation(s)
- Fu-Chen Huang
- Department of Pediatrics, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 833, Taiwan
- Correspondence: ; Tel.: +886-7-7317123 (ext. 8724)
| | - Shun-Chen Huang
- Department of Anatomic Pathology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 833, Taiwan
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21
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Jiang M, Wang HM, Zhou GL, Chen YS, Deng JK. Invasive Salmonella Infections Among Children in Shenzhen, China: A Five-year Retrospective Review. Pediatr Infect Dis J 2022; 41:684-689. [PMID: 35622427 DOI: 10.1097/inf.0000000000003588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Invasive Salmonella infections are highly prevalent worldwide. Clinical data of childhood invasive Salmonella infections from China are limited. METHODS Data of hospitalized children <18 years old with invasive Salmonella infections from 2016 to 2020 in Shenzhen Children's Hospital in Shenzhen were retrospectively collected. Serotypes and antimicrobial susceptibility tests of the invasive Salmonella isolates were performed. RESULTS Sixty-three cases were enrolled during the 5-year study period including 8 in 2016, 11 in 2017, 16 in 2018, 6 in 2019 and 22 in 2020. The median age was 15 months (interquartile range, 11-22 months), and 79.4% (50 cases) were <2 years of age. Underlying diseases were found in 28.6% (18 cases) of the patients with a great variety, but no cases of malaria or HIV infection were identified. Most of the invasive Salmonella cases were bloodstream infections (84.1%), followed by osteoarthritis (11.1%) and meningitis (4.8%). Gastroenteritis (49.2%) and pneumonia (28.6%) were found to be the major manifestations among the patients. Furthermore, invasive Salmonella infections resulted in the death of 3 children (4.8%). Salmonella enteritis (12 cases; 15.9%) and Salmonella typhimurium (9 cases; 19.0%) as the most common serovars were identified. The resistance rates of Salmonella strains to ceftriaxone, ceftazidime and cefepime were also measured to be 17.5%, 17.5% and 9.5%, respectively. CONCLUSIONS An increasing number of childhood invasive Salmonella infections with a broad range of serotypes was observed in Shenzhen, China. It is critical to pay attention to the antimicrobial resistance of the isolates taken from children with invasive Salmonella infections.
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Affiliation(s)
| | | | - Guang-Lun Zhou
- Department of Urology and Laboratory of Pelvic Floor Muscle Function
| | - Yun-Sheng Chen
- Department of Clinical Laboratory, Shenzhen Children's Hospital, Shenzhen, China
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22
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Wang Y, Liu J, Liu H, Liu L, Gao X, Tong Y, Song S, Yan C. Oxidized PUFAs Increase Susceptibility of Mice to Salmonella Infection by Diminishing Host's Innate Immune Responses. J Agric Food Chem 2022; 70:6407-6417. [PMID: 35588298 DOI: 10.1021/acs.jafc.2c00099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Dietary ω-3 PUFAs are highly prone to oxidation, and this may potentially limit their application in the health-promoting field. Here, we sought to investigate whether and how oxidized PUFAs modulate the susceptibility of mice to Salmonella typhimurium (S. Tm) infection. Algae oil (AO) and oxidized algae oil (ox-AO) were administered to the C57BL/6 mice prior to S. Tm infection. Compared to the S. Tm group, ox-AO increased bacterial burden in systemic and intestinal tissues, downregulated host anti-infection responses, and developed worse colitis. In macrophages, ox-AO decreased both phagocytosis of S. Tm and clearance of intracellular bacteria and dampened the activation of mitogen-activated protein kinase (MAPK), NF-κB, and autophagy pathways. Furthermore, ox-AO diminished LPS-induced inflammatory cytokine production and S. Tm induced NLRC4 inflammasome activation. This study reveals that oxidized PUFAs may contribute to the development of enteric infections and regular monitoring of the oxidation status in commercial PUFA supplements to prevent their potential adverse impact on human health.
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Affiliation(s)
- Yuandong Wang
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Jiaxiu Liu
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Huanhuan Liu
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Lingzhi Liu
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Xingchen Gao
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Yuqin Tong
- National Engineering Research Center of Solid-State Brewing, Luzhou Pinchuang Technology Company Limited, Luzhou 646000, China
| | - Shuang Song
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Chunhong Yan
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
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Chang CY, Gan YL, Lio JY, Radhakrishnan AP. Invasive salmonella enteritidis infection complicated by colonic perforations and pancytopenia: A case report. Med J Malaysia 2022; 77:264-266. [PMID: 35338642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Salmonellosis caused by bacterial genus Salmonella is associated with a high morbidity and mortality rate. Salmonellae can be divided into typhoidal serotypes (S. enterica ser. Typhi and S. enterica ser. Paratyphi A) and nontyphoidal Salmonella (NTS) serotypes. The two most common NTS serotypes isolated from human sources were S. enterica ser. Typhimurium and S. enterica ser. Enteritidis. NTS infection can present with diverse clinical manifestations, including gastroenteritis, bacteraemia, septic arthritis, osteomyelitis, and endovascular infection. Intestinal perforation is an extremely rare and potentially fatal complication of severe salmonella infection. Herein, we report a case of invasive S. Enteritidis infection complicated by colonic perforation and pancytopenia. Following a colonic resection, the patient received a prolonged course of antimicrobial therapy and eventually recovered.
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Affiliation(s)
- C Y Chang
- Hospital Selayang, Medical Department, Batu Caves, Selangor, Malaysia.
| | - Y L Gan
- Hospital Selayang, Medical Department, Batu Caves, Selangor, Malaysia
| | - J Y Lio
- Hospital Selayang, Medical Department, Batu Caves, Selangor, Malaysia
| | - A P Radhakrishnan
- Hospital Selayang, Medical Department, Batu Caves, Selangor, Malaysia
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Darboe S, Bradbury RS, Phelan J, Kanteh A, Muhammad AK, Worwui A, Yang S, Nwakanma D, Perez-Sepulveda B, Kariuki S, Kwambana-Adams B, Antonio M. Genomic diversity and antimicrobial resistance among non-typhoidal Salmonella associated with human disease in The Gambia. Microb Genom 2022; 8:000785. [PMID: 35302932 PMCID: PMC9176284 DOI: 10.1099/mgen.0.000785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 01/24/2022] [Indexed: 11/18/2022] Open
Abstract
Non-typhoidal Salmonella associated with multidrug resistance cause invasive disease in sub-Saharan Africa. Specific lineages of serovars Typhimurium and Enteritidis have been implicated. Here we characterized the genomic diversity of 100 clinical non-typhoidal Salmonella collected from 93 patients in 2001 from the eastern, and in 2006-2018 from the western regions of The Gambia respectively. A total of 93 isolates (64 invasive, 23 gastroenteritis and six other sites) representing a single infection episode were phenotypically tested for antimicrobial susceptibility using the Kirby-Bauer disc diffusion technique. Whole genome sequencing of 100 isolates was performed using Illumina, and the reads were assembled and analysed using SPAdes. The Salmonella in Silico Typing Resource (SISTR) was used for serotyping. SNP differences among the 93 isolates were determined using Roary, and phylogenetic analysis was performed in the context of 495 African strains from the European Nucleotide Archive. Salmonella serovars Typhimurium (26/64; 30.6 %) and Enteritidis (13/64; 20.3 %) were associated with invasive disease, whilst other serovars were mainly responsible for gastroenteritis (17/23; 73.9 %). The presence of three major serovar Enteritidis clades was confirmed, including the invasive West African clade, which made up more than half (11/16; 68.8 %) of the genomes. Multidrug resistance was confined among the serovar Enteritidis West African clade. The presence of this epidemic virulent clade has potential for spread of resistance and thus important implications for systematic patient management. Surveillance and epidemiological investigations to inform control are warranted.
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Affiliation(s)
- Saffiatou Darboe
- Medical Research Council Unit, The Gambia at London School of Hygiene and Tropical Medicine, The Gambia
| | | | - Jody Phelan
- London School of Hygiene and Tropical Medicine, London, UK
| | - Abdoulie Kanteh
- Medical Research Council Unit, The Gambia at London School of Hygiene and Tropical Medicine, The Gambia
| | - Abdul-Khalie Muhammad
- Medical Research Council Unit, The Gambia at London School of Hygiene and Tropical Medicine, The Gambia
| | - Archibald Worwui
- Medical Research Council Unit, The Gambia at London School of Hygiene and Tropical Medicine, The Gambia
| | - Shangxin Yang
- University of California, Los Angeles, California, USA
| | - Davis Nwakanma
- Medical Research Council Unit, The Gambia at London School of Hygiene and Tropical Medicine, The Gambia
| | | | | | - Brenda Kwambana-Adams
- Medical Research Council Unit, The Gambia at London School of Hygiene and Tropical Medicine, The Gambia
- University College London, London, UK
| | - Martin Antonio
- Medical Research Council Unit, The Gambia at London School of Hygiene and Tropical Medicine, The Gambia
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25
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Mehta J, Rolta R, Dev K. Role of medicinal plants from North Western Himalayas as an efflux pump inhibitor against MDR AcrAB-TolC Salmonella enterica serovar typhimurium: In vitro and In silico studies. J Ethnopharmacol 2022; 282:114589. [PMID: 34492321 DOI: 10.1016/j.jep.2021.114589] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 08/20/2021] [Accepted: 08/29/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Zingiber officinale Roscoe has been utilized traditionally to cure various diseases like cold, cough, diarrhoea, nausea, asthma, vomiting, toothache, stomach upset, respiratory disorders, joint pain, and throat infection. It is also consumed as spices and ginger tea. AIM OF THE STUDY The current study was aimed to identify the phytocompounds of traditional medicinal plants of North-Western Himalaya that could inhibit the AcrAB-TolC efflux pump activity of Salmonella typhimurium and become sensitive to antibiotic killing at reduced dosage. MATERIAL AND METHODS Medicinal plant extracts were prepared using methanol, aqueous, and ethyl acetate and tested for efflux pump inhibitory activity of Salmonella typhimurium NKS70, NKS174, and NKS773 strains using Ethidium Bromide (EtBr)-agar cartwheel assay. Synergism was assessed by the agar well diffusion method and EPI activity by berberine uptake and EtBr efflux inhibition assays. Microdilution method and checkerboard assays were done to determine the minimum inhibitory concentration (MIC) and fractional inhibitory concentration index (FICI) respectively for a bioactive compound. To validate the phytocompound and efflux pump interaction, molecular docking with 6IE8 (RamA) and 6IE9 (RamR) targets was done using autoDock vina software. Toxicity prediction and drug-likeness were predicted by using ProTox-II and Molinspiration respectively. RESULTS Methanolic and ethyl acetate extracts of P. integerrima, O. sanctum, C. asiatica, M. charantia, Z. officinale, and W. somnifera in combination with ciprofloxacin and tetracycline showed synergistic antimicrobial activity with GIIs of 0.61-1.32 and GIIs 0.56-1.35 respectively. Methanolic extract of Z. officinal enhanced the antimicrobial potency of berberine (2 to 4-folds) and increased the EtBr accumulation. Furthermore, bioassay-guided fractionation leads to the identification of lariciresinol in ethyl acetate fraction, which decreased the MIC by 2-to 4-folds. The ΣFIC values varied from 0.30 to 0.55 with tetracycline, that indicated synergistic/additive effects. Lariciresinol also showed a good binding affinity with 6IE8 (-7.4 kcal mol-1) and 6IE9 (-8.2 kcal mol-1), which is comparable to tetracycline and chenodeoxycholic acid. Lariciresinol followed Lipinski's rule of five. CONCLUSION The data suggest that lariciresinol from Z. officinale could be a potential efflux pump inhibitor that could lead to effective killing of drug resistant Salmonella typhimurium at lower MIC. Molecular docking confirmed the antibacterial EPI mechanism of lariciresinol in Salmonella typhimurium and confirmed to be safe for future use.
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Affiliation(s)
- Jyoti Mehta
- Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Bajhol, PO Sultanpur, District Solan, 173229, Himachal Pradesh, India.
| | - Rajan Rolta
- Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Bajhol, PO Sultanpur, District Solan, 173229, Himachal Pradesh, India
| | - Kamal Dev
- Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Bajhol, PO Sultanpur, District Solan, 173229, Himachal Pradesh, India.
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Bakkeren E, Herter JA, Huisman JS, Steiger Y, Gül E, Newson JPM, Brachmann AO, Piel J, Regoes R, Bonhoeffer S, Diard M, Hardt WD. Pathogen invasion-dependent tissue reservoirs and plasmid-encoded antibiotic degradation boost plasmid spread in the gut. eLife 2021; 10:e69744. [PMID: 34872631 PMCID: PMC8651294 DOI: 10.7554/elife.69744] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 11/10/2021] [Indexed: 11/30/2022] Open
Abstract
Many plasmids encode antibiotic resistance genes. Through conjugation, plasmids can be rapidly disseminated. Previous work identified gut luminal donor/recipient blooms and tissue-lodged plasmid-bearing persister cells of the enteric pathogen Salmonella enterica serovar Typhimurium (S.Tm) that survive antibiotic therapy in host tissues, as factors promoting plasmid dissemination among Enterobacteriaceae. However, the buildup of tissue reservoirs and their contribution to plasmid spread await experimental demonstration. Here, we asked if re-seeding-plasmid acquisition-invasion cycles by S.Tm could serve to diversify tissue-lodged plasmid reservoirs, and thereby promote plasmid spread. Starting with intraperitoneal mouse infections, we demonstrate that S.Tm cells re-seeding the gut lumen initiate clonal expansion. Extended spectrum beta-lactamase (ESBL) plasmid-encoded gut luminal antibiotic degradation by donors can foster recipient survival under beta-lactam antibiotic treatment, enhancing transconjugant formation upon re-seeding. S.Tm transconjugants can subsequently re-enter host tissues introducing the new plasmid into the tissue-lodged reservoir. Population dynamics analyses pinpoint recipient migration into the gut lumen as rate-limiting for plasmid transfer dynamics in our model. Priority effects may be a limiting factor for reservoir formation in host tissues. Overall, our proof-of-principle data indicates that luminal antibiotic degradation and shuttling between the gut lumen and tissue-resident reservoirs can promote the accumulation and spread of plasmids within a host over time.
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Affiliation(s)
- Erik Bakkeren
- Institute of Microbiology, Department of Biology, ETH ZurichZurichSwitzerland
| | | | - Jana Sanne Huisman
- Swiss Institute of BioinformaticsLausanneSwitzerland
- Institute of Integrative Biology, Department of Environmental Systems Science, ETH ZurichZurichSwitzerland
| | - Yves Steiger
- Institute of Microbiology, Department of Biology, ETH ZurichZurichSwitzerland
| | - Ersin Gül
- Institute of Microbiology, Department of Biology, ETH ZurichZurichSwitzerland
| | | | | | - Jörn Piel
- Institute of Microbiology, Department of Biology, ETH ZurichZurichSwitzerland
| | - Roland Regoes
- Institute of Integrative Biology, Department of Environmental Systems Science, ETH ZurichZurichSwitzerland
| | - Sebastian Bonhoeffer
- Institute of Integrative Biology, Department of Environmental Systems Science, ETH ZurichZurichSwitzerland
| | - Médéric Diard
- Botnar Research Centre for Child HealthBaselSwitzerland
- Biozentrum, University of BaselBaselSwitzerland
| | - Wolf-Dietrich Hardt
- Institute of Microbiology, Department of Biology, ETH ZurichZurichSwitzerland
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27
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Lang M, Montjarret A, Duteil E, Bedoux G. Cinnamomum cassia and Syzygium aromaticum Essential Oils Reduce the Colonization of Salmonella Typhimurium in an In Vivo Infection Model Using Caenorhabditis elegans. Molecules 2021; 26:5598. [PMID: 34577068 PMCID: PMC8467367 DOI: 10.3390/molecules26185598] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/09/2021] [Accepted: 09/10/2021] [Indexed: 11/16/2022] Open
Abstract
The regulation of intestinal colonization in livestock by means of non-bactericidal additives is an important management lever for zoonotic bacteria such as Salmonella spp. Caenorhabditis elegans is proposed here as a model for the evaluation of five essential oils (EOs) as anti-colonization products against Salmonella Typhimurium. An evaluation of the toxicity of EOs for C. elegans showed LD50 values ranging from 74.5 ± 9.6 µg/mL for Cinnamomum cassia (CEO) to 271.6 ± 14.9 µg/mL for Syzygium aromaticum (SyEO). Both EOs significantly inhibited bacterial colonization in the digestive tract of C. elegans with reductions of 0.88 and 0.70 log CFU/nematode at nontoxic concentrations of 50 µg/mL and 150 µg/mL, respectively. With the minimal bactericidal concentrations of CEO and SyEO against S. Typhimurium being 312.5 µg/mL and 625 µg/mL, respectively, an antibacterial effect can be excluded to explain the inhibition of the bacterial load. The anti-colonizing activity of these two EOs could, however, be related to an inhibition of the swimming motility, which was significantly reduced by 23.47% for CEO at 50 µg/mL and 19.56% for SyEO at 150 µg/mL. This study shows the potential of C. elegans as a predictive in vivo model of anti-colonizing activities that is suitable for the evaluation of essential oils.
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Affiliation(s)
- Marie Lang
- BioArmor S.A., Z.I de la Gare, F-22940 Plaintel, France; (A.M.); (E.D.)
- Laboratoire de Biotechnologie et Chimie Marines EA 3884, Université Bretagne Sud, F-56100 Lorient, France;
| | - Aude Montjarret
- BioArmor S.A., Z.I de la Gare, F-22940 Plaintel, France; (A.M.); (E.D.)
| | - Emmanuel Duteil
- BioArmor S.A., Z.I de la Gare, F-22940 Plaintel, France; (A.M.); (E.D.)
| | - Gilles Bedoux
- Laboratoire de Biotechnologie et Chimie Marines EA 3884, Université Bretagne Sud, F-56100 Lorient, France;
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van Doorn CLR, Schouten GK, van Veen S, Walburg KV, Esselink JJ, Heemskerk MT, Vrieling F, Ottenhoff THM. Pyruvate Dehydrogenase Kinase Inhibitor Dichloroacetate Improves Host Control of Salmonella enterica Serovar Typhimurium Infection in Human Macrophages. Front Immunol 2021; 12:739938. [PMID: 34552598 PMCID: PMC8450447 DOI: 10.3389/fimmu.2021.739938] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 08/23/2021] [Indexed: 01/11/2023] Open
Abstract
Global increases in the prevalence of antimicrobial resistance highlight the urgent need for novel strategies to combat infectious diseases. Recent studies suggest that host metabolic pathways play a key role in host control of intracellular bacterial pathogens. In this study we explored the potential of targeting host metabolic pathways for innovative host-directed therapy (HDT) against intracellular bacterial infections. Through gene expression profiling in human macrophages, pyruvate metabolism was identified as potential key pathway involved in Salmonella enterica serovar Typhimurium (Stm) infections. Next, the effect of targeting pyruvate dehydrogenase kinases (PDKs) - which are regulators of the metabolic checkpoint pyruvate dehydrogenase complex (PDC) - on macrophage function and bacterial control was studied. Chemical inhibition of PDKs by dichloroacetate (DCA) induced PDC activation and was accompanied with metabolic rewiring in classically activated macrophages (M1) but not in alternatively activated macrophages (M2), suggesting cell-type specific effects of dichloroacetate on host metabolism. Furthermore, DCA treatment had minor impact on cytokine and chemokine secretion on top of infection, but induced significant ROS production by M1 and M2. DCA markedly and rapidly reduced intracellular survival of Stm, but interestingly not Mycobacterium tuberculosis, in human macrophages in a host-directed manner. In conclusion, DCA represents a promising novel HDT compound targeting pyruvate metabolism for the treatment of Stm infections.
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He Y, Ayansola H, Hou Q, Liao C, Lei J, Lai Y, Jiang Q, Masatoshi H, Zhang B. Genistein Inhibits Colonic Goblet Cell Loss and Colorectal Inflammation Induced by Salmonella Typhimurium Infection. Mol Nutr Food Res 2021; 65:e2100209. [PMID: 34146390 DOI: 10.1002/mnfr.202100209] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 06/12/2021] [Indexed: 12/28/2022]
Abstract
SCOPE Salmonella is the main food-borne pathogen, which can infect intestinal epithelial cells and causes colitis. Genistein has a variety of biological activities that alleviates colitis induced by sodium dextran sulfate in a variety of ways, but its protective effects on colitis caused by pathogenic bacteria are still unknown. METHODS AND RESULTS This study explores the protective effect of genistein in reducing colitis caused by Salmonella infection. Salmonella causes colon inflammation through activating cyclooxygenase-2/prostaglandin E2, and genistein inhibits colitis caused by Salmonella typhimurium infection. Salmonella infection increases colonic mucosal damage, proliferating cells, and goblet cell loss, while the administration of genistein solves these pathological changes. In addition, it is further proved that Salmonella causes severe colitis related to goblet cell loss and activates the host crypt stem cells to repair the damaged epithelium. Salmonella infection inhibites the host mammalian target of rapamycin, activates light chain 3 II pathways to induce autophagy to eliminate pathogenic bacteria. Genistein increases Lactobacillus in feces and reduces Salmonella colonization to inhibit colitis induces by Salmonella infection. CONCLUSION This study demonstrates genistein alleviated colitis and inhibites the goblet cell loss causes by Salmonella infection through regulating the gut bacteria and intestinal stem cell development.
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Affiliation(s)
- Yang He
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition & Feed Science, College of Animal Science & Technology, China Agricultural University, Haidian District, Beijing, 100193, China
- College of Veterinary Medicine, China Agricultural University, Haidian District, Beijing, 100193, China
| | - Hammed Ayansola
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition & Feed Science, College of Animal Science & Technology, China Agricultural University, Haidian District, Beijing, 100193, China
| | - Qihang Hou
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition & Feed Science, College of Animal Science & Technology, China Agricultural University, Haidian District, Beijing, 100193, China
| | - Chaoyong Liao
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition & Feed Science, College of Animal Science & Technology, China Agricultural University, Haidian District, Beijing, 100193, China
| | - Jiaqi Lei
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition & Feed Science, College of Animal Science & Technology, China Agricultural University, Haidian District, Beijing, 100193, China
| | - Yujiao Lai
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition & Feed Science, College of Animal Science & Technology, China Agricultural University, Haidian District, Beijing, 100193, China
| | - Qiuyu Jiang
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition & Feed Science, College of Animal Science & Technology, China Agricultural University, Haidian District, Beijing, 100193, China
| | - Hori Masatoshi
- Department of Veterinary Pharmacology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Bingkun Zhang
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition & Feed Science, College of Animal Science & Technology, China Agricultural University, Haidian District, Beijing, 100193, China
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Hussain S, Ouyang P, Zhu Y, Khalique A, He C, Liang X, Shu G, Yin L. Type 3 secretion system 1 of Salmonella typhimurium and its inhibitors: a novel strategy to combat salmonellosis. Environ Sci Pollut Res Int 2021; 28:34154-34166. [PMID: 33966165 DOI: 10.1007/s11356-021-13986-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 04/13/2021] [Indexed: 06/12/2023]
Abstract
Unsuccessful vaccination against Salmonella due to a large number of serovars, and antibiotic resistance, necessitates the development of novel therapeutics to treat salmonellosis. The development of anti-virulence agents against multi-drug-resistant bacteria is a novel strategy because of its non-bacterial feature. Hence, a thorough study of the type three secretion system (T3SS) of Salmonella would help us better understand its role in bacterial pathogenesis and development of anti-virulence agents. However, T3SS can be inhibited by different chemicals at different stages of infection and sequenced delivery of effectors can be blocked to restrict the progression of disease. This review highlights the role of T3SS-1 in the internalization, survival, and replication of Salmonella within the intestinal epithelium and T3SS inhibitors. We concluded that the better we understand the structures and functions of T3SS, the more we have chances to develop anti-virulence agents. Furthermore, greater insights into the T3SS inhibitors of Salmonella would help in the mitigation of the antibiotic resistance problem and would lead us to the era of new therapeutics against salmonellosis.
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Affiliation(s)
- Sajjad Hussain
- College of Veterinary Medicine, Sichuan Agriculture University, Huimin Road 211, Wenjiang, Chengdu, China
| | - Ping Ouyang
- College of Veterinary Medicine, Sichuan Agriculture University, Huimin Road 211, Wenjiang, Chengdu, China
| | - Yingkun Zhu
- College of Veterinary Medicine, Sichuan Agriculture University, Huimin Road 211, Wenjiang, Chengdu, China
| | - Abdul Khalique
- College of Veterinary Medicine, Sichuan Agriculture University, Huimin Road 211, Wenjiang, Chengdu, China
| | - Changliang He
- College of Veterinary Medicine, Sichuan Agriculture University, Huimin Road 211, Wenjiang, Chengdu, China
| | - Xiaoxia Liang
- College of Veterinary Medicine, Sichuan Agriculture University, Huimin Road 211, Wenjiang, Chengdu, China
| | - Gang Shu
- College of Veterinary Medicine, Sichuan Agriculture University, Huimin Road 211, Wenjiang, Chengdu, China
| | - Lizi Yin
- College of Veterinary Medicine, Sichuan Agriculture University, Huimin Road 211, Wenjiang, Chengdu, China.
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Ulhaq ZS, Hendyatama TH, Hameed F, Santosaningsih D. Antibacterial activity of Citrus hystrix toward Salmonella spp. infection. ACTA ACUST UNITED AC 2021; 39:283-286. [PMID: 34088449 DOI: 10.1016/j.eimce.2020.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 05/15/2020] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Citrus hystrix is widely used by Indonesians as a traditional medicine for gastrointestinal diseases, including Salmonella spp. infection. We investigated the antibacterial activity of the ethanolic peel extract of C. hystrix against Salmonella typhimurium. METHODS The antibacterial activity was evaluated both in vitro and in vivo. The minimum inhibitory concentration (MIC) of the extract was determined at a concentration of 0.625% by agar dilution assay. Later, the in vivo antibacterial activity was examined by the administration of 16mg of the extract daily for three consecutive days in a mouse model infected with S. typhimurium. RESULTS The bacterial loads of S. typhimurium in the ileum, liver, and spleen decreased after 24h of administration of the extract (p=0.00008, p=0.00084, and p=0.00003, respectively). CONCLUSION The ethanolic peel extract of C. hystrix shows antibacterial activity against S. typhimurium, indicating the potential of C. hystrix as an effective treatment for Salmonella spp. infection.
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Affiliation(s)
- Zulvikar Syambani Ulhaq
- Department of Biochemistry, Faculty of Medicine and Health Sciences, Maulana Malik Ibrahim Islamic State University of Malang, Batu, East Java, Indonesia; Department of Clinical Microbiology, Faculty of Medicine, Brawijaya University, Malang, East Java, Indonesia.
| | - Tenta Hartian Hendyatama
- Department of Internal Medicine, Faculty of Medicine, Airlangga University, Surabaya, East Java, Indonesia; Department of Clinical Microbiology, Faculty of Medicine, Brawijaya University, Malang, East Java, Indonesia
| | - Faizanah Hameed
- Batu Rakit Health Clinic, Trengganu, Malaysia; Department of Clinical Microbiology, Faculty of Medicine, Brawijaya University, Malang, East Java, Indonesia
| | - Dewi Santosaningsih
- Department of Clinical Microbiology, Faculty of Medicine, Brawijaya University, Malang, East Java, Indonesia
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Zigangirova NA, Nesterenko LN, Sheremet AB, Soloveva AV, Luyksaar SI, Zayakin ES, Balunets DV, Gintsburg AL. Fluorothiazinon, a small-molecular inhibitor of T3SS, suppresses salmonella oral infection in mice. J Antibiot (Tokyo) 2021; 74:244-254. [PMID: 33479520 DOI: 10.1038/s41429-020-00396-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/05/2020] [Accepted: 11/18/2020] [Indexed: 01/29/2023]
Abstract
Therapeutic strategies that target bacterial virulence have received considerable attention. The type III secretion system (T3SS) is important for bacterial virulence and represents an attractive therapeutic target. Recently, we developed a new small-molecule inhibitor belonging to a class 2,4-disubstituted-4H-[1,3,4]-thiadiazine-5-ones, Fluorothiazinon (FT-previously called CL-55). FT effectively suppressed T3SS of Chlamydia spp., Pseudomonas aeruginosa, and Salmonella without affecting bacterial growth in vitro. FT was previously characterized by low toxicity, stability, and therapeutic efficacy in animal models. Salmonella T3SS inhibition by FT was studied using in vitro assays for effector proteins detection and estimation of salmonella replication in peritoneal macrophages. The antibacterial effect of FT in vivo was investigated in murine models of salmonella chronic systemic and acute infection. Oral administration of the virulent strain of Salmonella enterica serovar Typhimurium to mice-induced chronic systemic infection with the pathogen persistence in different lymphoid organs such as spleens, Peyer's plaques, and mesenteric lymph nodes. We found that FT suppressed orally induced salmonella infection both with therapeutic and prophylactic administration. Treatment by FT at a dose of 50 mg/kg for 4 days starting from day 7 post-infection (therapy) as well as for 4 days before infection (prevention) led to practically complete eradication of salmonella in mice. FT shows a strong potential for antibacterial therapy and could be used as a substance in the design of antibacterial drugs for pharmaceutical intervention including therapy of antibiotic-resistant infections.
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Affiliation(s)
- Nailya A Zigangirova
- Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health Russian Federation, Gamaleya str.18, Moscow, 123098, Russia.
| | - Ludmila N Nesterenko
- Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health Russian Federation, Gamaleya str.18, Moscow, 123098, Russia
| | - Anna B Sheremet
- Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health Russian Federation, Gamaleya str.18, Moscow, 123098, Russia
| | - Anna V Soloveva
- Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health Russian Federation, Gamaleya str.18, Moscow, 123098, Russia
| | - Sergey I Luyksaar
- Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health Russian Federation, Gamaleya str.18, Moscow, 123098, Russia
| | - Egor S Zayakin
- Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health Russian Federation, Gamaleya str.18, Moscow, 123098, Russia
| | - Denis V Balunets
- Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health Russian Federation, Gamaleya str.18, Moscow, 123098, Russia
| | - Alexandr L Gintsburg
- Gamaleya National Research Center of Epidemiology and Microbiology, Ministry of Health Russian Federation, Gamaleya str.18, Moscow, 123098, Russia
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Wu S, Hulme JP. Recent Advances in the Detection of Antibiotic and Multi-Drug Resistant Salmonella: An Update. Int J Mol Sci 2021; 22:3499. [PMID: 33800682 PMCID: PMC8037659 DOI: 10.3390/ijms22073499] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/19/2021] [Accepted: 03/20/2021] [Indexed: 12/26/2022] Open
Abstract
Antibiotic and multi-drug resistant (MDR) Salmonella poses a significant threat to public health due to its ability to colonize animals (cold and warm-blooded) and contaminate freshwater supplies. Monitoring antibiotic resistant Salmonella is traditionally costly, involving the application of phenotypic and genotypic tests over several days. However, with the introduction of cheaper semi-automated devices in the last decade, strain detection and identification times have significantly fallen. This, in turn, has led to efficiently regulated food production systems and further reductions in food safety hazards. This review highlights current and emerging technologies used in the detection of antibiotic resistant and MDR Salmonella.
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Affiliation(s)
- Siying Wu
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong;
| | - John P. Hulme
- Department of Bionano Technology, Gachon Bionano Research Institute, Gachon University, Seongnam-si, Gyeonggi-do 461-701, Korea
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Kubicek-Sutherland JZ, Xie G, Shakya M, Dighe PK, Jacobs LL, Daligault H, Davenport K, Stromberg LR, Stromberg ZR, Cheng Q, Kempaiah P, Ong’echa JM, Otieno V, Raballah E, Anyona S, Ouma C, Chain PSG, Perkins DJ, Mukundan H, McMahon BH, Doggett NA. Comparative genomic and phenotypic characterization of invasive non-typhoidal Salmonella isolates from Siaya, Kenya. PLoS Negl Trop Dis 2021; 15:e0008991. [PMID: 33524010 PMCID: PMC7877762 DOI: 10.1371/journal.pntd.0008991] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 02/11/2021] [Accepted: 11/17/2020] [Indexed: 02/07/2023] Open
Abstract
Non-typhoidal Salmonella (NTS) is a major global health concern that often causes bloodstream infections in areas of the world affected by malnutrition and comorbidities such as HIV and malaria. Developing a strategy to control the emergence and spread of highly invasive and antimicrobial resistant NTS isolates requires a comprehensive analysis of epidemiological factors and molecular pathogenesis. Here, we characterize 11 NTS isolates that caused bloodstream infections in pediatric patients in Siaya, Kenya from 2003-2010. Nine isolates were identified as S. Typhimurium sequence type 313 while the other two were S. Enteritidis. Comprehensive genotypic and phenotypic analyses were performed to compare these isolates to those previously identified in sub-Saharan Africa. We identified a S. Typhimurium isolate referred to as UGA14 that displayed novel plasmid, pseudogene and resistance features as compared to other isolates reported from Africa. Notably, UGA14 is able to ferment both lactose and sucrose due to the acquisition of insertion elements on the pKST313 plasmid. These findings show for the first time the co-evolution of plasmid-mediated lactose and sucrose metabolism along with cephalosporin resistance in NTS further elucidating the evolutionary mechanisms of invasive NTS phenotypes. These results further support the use of combined genomic and phenotypic approaches to detect and characterize atypical NTS isolates in order to advance biosurveillance efforts that inform countermeasures aimed at controlling invasive and antimicrobial resistant NTS.
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Affiliation(s)
| | - Gary Xie
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | - Migun Shakya
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | - Priya K. Dighe
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | - Lindsey L. Jacobs
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | | | - Karen Davenport
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
| | | | | | - Qiuying Cheng
- Center for Global Health, University of New Mexico, Albuquerque, New Mexico, United States of America
| | - Prakasha Kempaiah
- Center for Global Health, University of New Mexico, Albuquerque, New Mexico, United States of America
| | - John Michael Ong’echa
- University of New Mexico/KEMRI Laboratories of Parasitic and Viral Diseases, Kenya Medical Research Institute, Kisumu, Kenya
| | - Vincent Otieno
- University of New Mexico/KEMRI Laboratories of Parasitic and Viral Diseases, Kenya Medical Research Institute, Kisumu, Kenya
| | - Evans Raballah
- University of New Mexico/KEMRI Laboratories of Parasitic and Viral Diseases, Kenya Medical Research Institute, Kisumu, Kenya
- Department of Medical Laboratory Science, School of Public Health, Biomedical Sciences and Technology, Masinde Muliro University of Science and Technology, Kakamega, Kenya
| | - Samuel Anyona
- University of New Mexico/KEMRI Laboratories of Parasitic and Viral Diseases, Kenya Medical Research Institute, Kisumu, Kenya
- Department of Medical Biochemistry, School of Medicine, Maseno University, Maseno, Kenya
| | - Collins Ouma
- University of New Mexico/KEMRI Laboratories of Parasitic and Viral Diseases, Kenya Medical Research Institute, Kisumu, Kenya
- Department of Biomedical Sciences and Technology, School of Public Health and Community Development, Maseno University, Maseno, Kenya
| | | | - Douglas J. Perkins
- Center for Global Health, University of New Mexico, Albuquerque, New Mexico, United States of America
- University of New Mexico/KEMRI Laboratories of Parasitic and Viral Diseases, Kenya Medical Research Institute, Kisumu, Kenya
| | - Harshini Mukundan
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
- * E-mail:
| | | | - Norman A. Doggett
- Los Alamos National Laboratory, Los Alamos, New Mexico, United States
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Qu Z, McMahon BH, Perkins DJ, Hyman JM. Staged progression epidemic models for the transmission of invasive nontyphoidal Salmonella (iNTS) with treatment. Math Biosci Eng 2021; 18:1529-1549. [PMID: 33757197 DOI: 10.3934/mbe.2021079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We develop and analyze a stage-progression compartmental model to study the emerging invasive nontyphoidal Salmonella (iNTS) epidemic in sub-Saharan Africa. iNTS bloodstream infections are often fatal, and the diverse and non-specific clinical features of iNTS make it difficult to diagnose. We focus our study on identifying approaches that can reduce the incidence of new infections. In sub-Saharan Africa, transmission and mortality are correlated with the ongoing HIV epidemic and severe malnutrition. We use our model to quantify the impact that increasing antiretroviral therapy (ART) for HIV infected adults and reducing malnutrition in children would have on mortality from iNTS in the population. We consider immunocompromised subpopulations in the region with major risk factors for mortality, such as malaria and malnutrition among children and HIV infection and ART coverage in both children and adults. We parameterize the progression rates between infection stages using the branching probabilities and estimated time spent at each stage. We interpret the basic reproduction number R0 as the total contribution from an infinite infection loop produced by the asymptomatic carriers in the infection chain. The results indicate that the asymptomatic HIV+ adults without ART serve as the driving force of infection for the iNTS epidemic. We conclude that the worst disease outcome is among the pediatric population, which has the highest infection rates and death counts. Our sensitivity analysis indicates that the most effective strategies to reduce iNTS mortality in the studied population are to improve the ART coverage among high-risk HIV+ adults and reduce malnutrition among children.
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Affiliation(s)
- Zhuolin Qu
- Department of Mathematics, University of Texas at San Antonio, San Antonio 78202, TX, USA
| | - Benjamin H McMahon
- Theoretical Biology and Biophysics, Los Alamos National Laboratory, Los Alamos, NM, USA
| | - Douglas J Perkins
- University of New Mexico, Center for Global Health, Department of Internal Medicine, NM, USA
- University of New Mexico-Kenya Global Health Programs, Kisumu and Siaya, Kenya
| | - James M Hyman
- Department of Mathematics, Tulane University, New Orleans 70112, LA, USA
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Tavares LS, Ralph MT, Batista JEC, Sales AC, Ferreira LCA, Usman UA, da Silva Júnior VA, Ramos MV, Lima-Filho JV. Perspectives for the use of latex peptidases from Calotropis procera for control of inflammation derived from Salmonella infections. Int J Biol Macromol 2021; 171:37-43. [PMID: 33418044 DOI: 10.1016/j.ijbiomac.2020.12.172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/22/2020] [Accepted: 12/22/2020] [Indexed: 11/18/2022]
Abstract
BACKGROUND Anti-inflammatory properties have been attributed to latex proteins of the medicinal plant Calotropis procera. PURPOSE A mixture of cysteine peptidases (LPp2) from C. procera latex was investigated for control of inflammatory mediators and inflammation in a mouse model of Salmonella infection. METHODS LPp2 peptidase activity was confirmed by the BANA assay. Cytotoxicity assays were conducted with immortalized macrophages. Peritoneal macrophages (pMØ) from Swiss mice were stimulated with lipopolysaccharide (LPS) in 96-well plates and then cultured with nontoxic concentrations of LPp2. Swiss mice intravenously received LPp2 (10 mg/kg) and then were challenged intraperitoneally with virulent Salmonella enterica Ser. Typhimurium. RESULTS LPp2 was not toxic at dosages lower than 62.2 μg/mL. LPp2 treatments of pMØ stimulated with LPS impaired mRNA expression of pro-inflammatory cytokines IL-1β, TNF-α, IL-6 and IL-10. LPp2 increased the intracellular bacterial killing in infected pMØ. Mice given LPp2 had a lower number of leukocytes in the peritoneal cavity in comparison to control groups 6 h after infection. The bacterial burden and histological damage were widespread in target organs of mice receiving LPp2. CONCLUSION We conclude that LPp2 contains peptidases with strong anti-inflammatory properties, which may render mice more susceptible to early disseminated infection caused by Salmonella.
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Affiliation(s)
| | - Maria Taciana Ralph
- Department of Biology, Federal Rural University of Pernambuco, Recife, PE, Brazil
| | | | - Ana Clarissa Sales
- Department of Biology, Federal Rural University of Pernambuco, Recife, PE, Brazil
| | | | - Usman Abdulhadi Usman
- Department of Veterinary Medicine, Federal Rural University of Pernambuco, Recife, PE, Brazil
| | | | - Marcio Viana Ramos
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
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Abstract
This chapter contains the latest version of essential protocols established to study Salmonella persisters during macrophage infection . These methods, which can be applied to other pathogens, allow researchers to quantify, visualize, and characterize bacterial persisters within a population and within immune cells consistent with the recent consensus statement published by the research community working on antibiotic persistence (Balaban et al, Nat Rev Microbiol 17:441-448, 2019). These protocols notably allow the discrimination between tolerance and persistence during infection , which is essential to clarify which phenomenon is actually reported. Methods described in this chapter may contribute to the determination of key bacterial and host genes that contribute to antibiotic persistence.
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Affiliation(s)
- Charlotte Michaux
- Section of Microbiology, Medical Research Council Centre for Molecular Bacteriology and Infection, Imperial College London, London, UK
- Department of Microbiology, Harvard Medical School, Boston, MA, USA
| | - Séverin Ronneau
- Section of Microbiology, Medical Research Council Centre for Molecular Bacteriology and Infection, Imperial College London, London, UK
- Department of Microbiology, Harvard Medical School, Boston, MA, USA
| | - Sophie Helaine
- Section of Microbiology, Medical Research Council Centre for Molecular Bacteriology and Infection, Imperial College London, London, UK.
- Department of Microbiology, Harvard Medical School, Boston, MA, USA.
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Peker G, Kasap B, Bala MM. Treatment of Psoas abscess related coxarthrosıs due to salmonella infection in a patient wıth chronic renal failure. A case report. Ann Ital Chir 2020; 9:S2239253X20032521. [PMID: 33337430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
INTRODUCTION The most common microorganisms isolated from septic arthritis are staphylococcus aureus and streptoccocci. Septic arthritis due to Salmonella spp. is extremely rare. PRESENTATION OF CASE A 55-year-old man, chronic renal failure, is admitted hip arthtritis with newly arised symptoms. The findings were not compatible with primary arthritis. The laboratory findings which include white blood cell count, erythrocyte sedimentation rate (esr) and c-reactive protein (crp) were elevated. In magnetic resonance (mr) imaging there were psoas abscess and septic arthritis of the hip. They were treated by drainage. The culture was confirmed as Salmonella spp. Antibiotic treatment were done. DISCUSSION Uremia in patients with chronic renal failure is associated with a state of immune dysfunction. In our case, uremia may cause immunosuppressive conditions and hematogenous dissemination of salmonella. CONCLUSION Salmonella infection in a patient with chronic renal failure may be occured. It must be kept in mind that early diagnosis, administration of appropriate systemic antibiotics and surgical intervention play a pivotal role in successful management. KEY WORDS Arthritis, Failure, Psoas, Salmonella Renal Abscess.
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MESH Headings
- Arthritis, Infectious/complications
- Arthritis, Infectious/diagnostic imaging
- Arthritis, Infectious/drug therapy
- Arthritis, Infectious/microbiology
- Humans
- Kidney Failure, Chronic/complications
- Kidney Failure, Chronic/diagnostic imaging
- Kidney Failure, Chronic/microbiology
- Male
- Middle Aged
- Osteoarthritis, Hip/diagnostic imaging
- Osteoarthritis, Hip/etiology
- Osteoarthritis, Hip/microbiology
- Osteoarthritis, Hip/therapy
- Psoas Abscess/complications
- Psoas Abscess/diagnostic imaging
- Psoas Abscess/microbiology
- Psoas Abscess/therapy
- Salmonella Infections/complications
- Salmonella Infections/diagnostic imaging
- Salmonella Infections/drug therapy
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Takkinsatian P, Silpskulsuk C, Prommalikit O. Clinical features and antibiotic susceptibility of Salmonella gastroenteritis in children: A ten-year review. Med J Malaysia 2020; 75:672-676. [PMID: 33219176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
INTRODUCTION Salmonella is a common organism, causing intestinal and extraintestinal infections among Thai children, especially infants, and leading to overwhelming antibiotic use. MATERIALS AND METHODS In this retrospective review, data collected during 2006-2015 from the medical charts of patients with evidence of infection, caused by any Salmonella serogroup or clinical form, were examined. We aimed to assess the clinical manifestations, antibiotic susceptibility, and antibiotic use in children with Salmonella gastroenteritis over the ten years' period. RESULTS A total of 419 patients had non-typhoidal Salmonella infection. Four-hundred (95.5%) patients were diagnosed with acute gastroenteritis, which was common in children aged <12 months (72.3%). The clinical features of patients with gastroenteritis included fever (74.5%), diarrhoea with bloody mucus (60.5%), watery diarrhoea (39.5%), and vomiting (19.8%). Serogroup B was most commonly detected in the stool specimens. The susceptibility of non-typhoidal Salmonella to ampicillin, norfloxacin, and co-trimoxazole was 36.3%, 98.0%, and 80.5%, respectively. Serogroup B was the most resistant strain, which was sensitive to ampicillin in only 21.6% of specimens, while it showed high susceptibility to norfloxacin and co-trimoxazole (98.1 and 84.0%, respectively). Third-generation cephalosporin and fluoroquinolone were most commonly prescribed. CONCLUSIONS Acute gastroenteritis is the most common form of Salmonella infection. Gastroenteritis caused by serogroup B is still the most common infection, which mostly occurs among infants under one year of age. The majority of stool specimens were still susceptible to antimicrobial agents, especially fluoroquinolone and cotrimoxazole; however, there was an overuse of antibiotics without proper indications.
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Affiliation(s)
- P Takkinsatian
- Srinakharinwirot University, Faculty of Medicine, Department of Pediatrics, Nakhon Nayok, Thailand.
| | - C Silpskulsuk
- Srinakharinwirot University, Faculty of Medicine, Department of Pediatrics, Nakhon Nayok, Thailand
| | - O Prommalikit
- Srinakharinwirot University, Faculty of Medicine, Department of Pediatrics, Nakhon Nayok, Thailand
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Mbock MA, Fouatio WF, Kamkumo RG, Tsouh Fokou PV, Tsofack FN, Lunga PK, Essia Ngang JJ, Boyomo O, Nkengfack AE, Ndjakou BL, Sewald N, Boyom FF, Dimo T. In vitro and in vivo anti-salmonella properties of hydroethanolic extract of Detarium microcarpum Guill. & Perr. (Leguminosae) root bark and LC-MS-based phytochemical analysis. J Ethnopharmacol 2020; 260:113049. [PMID: 32534119 DOI: 10.1016/j.jep.2020.113049] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 05/11/2020] [Accepted: 05/29/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Typhoid fever treatment remains a challenge in endemic countries. Detarium microcarpum is traditionally used to manage typhoid. AIM OF THE STUDY The study aims to explore the efficacy of hydroethanolic extract of Detarium microcarpum root bark in rats infected with salmonella. MATERIAL AND METHODS The phytochemical profile of the extract was obtained by UHPLC-MS analysis in an attempt of standardization. The in vitro antimicrobial activity was determined using broth dilution method. Salmonella infection was induced by oral administration of S. thyphimurium to immunosuppressed rats. Infected rats were then treated 2 h later with the extract (75, 150 and 300 mg/kg), distilled water (normal and salmonella control) and ciprofloxacin (8 mg/kg) for control. Body weight was monitored and stools were cultured to determine the number of colony-forming units. At the end of treatment, animals were sacrificed, blood and organs were collected for hematological, biochemical and histopathological analyses. RESULTS Detarium microcarpum extract as well as the isolated compound (rhinocerotinoic acid) exhibited good antimicrobial activity in vitro with bacteriostatic effects. The plant extract significantly (p < 0.05) inhibited the bacterial development in infected animals with an effective dose (ED50) of 75 mg/kg. In addition, the extract prevented body weight loss, hematological, biochemical and histopathological damages in treated rats. CONCLUSION Detarium microcarpum extract possesses antisalmonella properties justifying its traditional use for the typhoid fever management.
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Affiliation(s)
- Michel Arnaud Mbock
- Department of Microbiology, Faculty of Science, University of Yaounde I, P.O. Box, 812, Yaoundé, Cameroon; Department of Animal Biology and Physiology, Faculty of Science University of Yaounde I, P.O. Box, 812, Yaoundé, Cameroon; Department of Biochemistry, Faculty of Science, University of Yaoundé I, P.O. Box, 812, Yaoundé, Cameroon
| | - William Feudjou Fouatio
- Department of Chemistry, Faculty of Science, University of Yaoundé I, P.O. Box, 812, Yaoundé, Cameroon
| | - Raceline Gounoue Kamkumo
- Department of Animal Biology and Physiology, Faculty of Science University of Yaounde I, P.O. Box, 812, Yaoundé, Cameroon; Department of Biochemistry, Faculty of Science, University of Yaoundé I, P.O. Box, 812, Yaoundé, Cameroon
| | - Patrick Valère Tsouh Fokou
- Department of Biochemistry, Faculty of Science, University of Yaoundé I, P.O. Box, 812, Yaoundé, Cameroon; Department of Biochemistry, Faculty of Science, University of Bamenda, P.O. Box 39, Bamenda, Cameroon
| | - Florence Ngueguim Tsofack
- Department of Animal Biology and Physiology, Faculty of Science University of Yaounde I, P.O. Box, 812, Yaoundé, Cameroon
| | - Paul-Keilah Lunga
- Department of Biochemistry, Faculty of Science, University of Yaoundé I, P.O. Box, 812, Yaoundé, Cameroon
| | - Jean Justin Essia Ngang
- Department of Microbiology, Faculty of Science, University of Yaounde I, P.O. Box, 812, Yaoundé, Cameroon
| | - Onana Boyomo
- Department of Microbiology, Faculty of Science, University of Yaounde I, P.O. Box, 812, Yaoundé, Cameroon
| | - Augustin Ephrem Nkengfack
- Department of Chemistry, Faculty of Science, University of Yaoundé I, P.O. Box, 812, Yaoundé, Cameroon
| | - Bruno Lenta Ndjakou
- Department of Chemistry, Higher Teacher Training College, University of Yaoundé 1, P.O. Box 47, Yaoundé, Cameroon
| | - Norbert Sewald
- Department of Chemistry, Bielefeld University, P.O. Box 100131, 33501, Bielefeld, Germany
| | - Fabrice Fekam Boyom
- Department of Biochemistry, Faculty of Science, University of Yaoundé I, P.O. Box, 812, Yaoundé, Cameroon
| | - Theophile Dimo
- Department of Animal Biology and Physiology, Faculty of Science University of Yaounde I, P.O. Box, 812, Yaoundé, Cameroon.
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Ke Y, Lu W, Liu W, Zhu P, Chen Q, Zhu Z. Non-typhoidal Salmonella infections among children in a tertiary hospital in Ningbo, Zhejiang, China, 2012-2019. PLoS Negl Trop Dis 2020; 14:e0008732. [PMID: 33017418 PMCID: PMC7561262 DOI: 10.1371/journal.pntd.0008732] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 10/15/2020] [Accepted: 08/18/2020] [Indexed: 11/23/2022] Open
Abstract
Background Non-typhoidal Salmonella (NTS), a common cause of diarrheal enterocolitis, may also cause severe invasive diseases. Limited information on NTS infections in children is available in China. Methods We performed a retrospective study of children admitted to the Ningbo Women and Children’s Hospital with culture-confirmed NTS infections between January 2012 and December 2019. Clinical and microbiological information were collected. We compared demographic, clinical and antibiotic resistance variables of invasive NTS (iNTS) infections and non-invasive NTS (non-iNTS) infections, and explored associations between hospitalizations for pediatric NTS infections and temperature and rainfall. Results A total of 166 pediatric hospitalizations due to NTS infection were identified during the 8-year study period. Most of the 166 children were <5 years old (93.4%). The primary serotype was Salmonella Typhimurium (62.6%). Of 166 children with NTS infections, 11 had invasive infection. Compared to 155 children with non-iNTS infections, we found that iNTS infections were more likely to occur in infants ≤6 months or children with an underlying medical condition of leukemia at admission, but iNTS infections less often presented with a symptom of diarrhea (P <0.05 in all cases). The resistance rates of non-iNTS isolates to ceftazidime, ceftriaxone, cefepime, and aztreonam were significantly higher than those of iNTS isolates (P <0.05 in all cases). In addition, compared with iNTS isolates, non-iNTS isolates were significantly associated with resistance to ≥4 CLSI (Clinical and Laboratory Standard Institute) classes (P = 0.041, OR: 0.089, 95% CI: 0.009–0.901) and ≥2 first-line treatment agents (P = 0.040, OR: 0.159, 95% CI: 0.028–0.916). On the other hand, we found that seasonal NTS hospitalizations were positively associated with average seasonal temperature (r = 0.961, P = 0.039) and average monthly rainfall (r = 0.921, P <0.001). Conclusion Non-iNTS accounts for the majority of infections in this study; infants ≤6 months and children with underlying medical conditions of leukemia are more likely to have invasive infection. The rates of antibiotic resistance in the iNTS isolates are generally lower than those in the non-iNTS isolates. On the other hand, high temperatures and heavy rainfall are positively associated with NTS hospitalizations among children in Ningbo. Non-typhoidal Salmonella (NTS) infection is a foodborne disease with a global heavy burden. NTS usually causes diarrheal enterocolitis in humans and may also cause severe invasive NTS (iNTS) infections. Antimicrobial agents are not recommended for non-severe NTS diarrhea, but they are recommended for people at risk of severe or invasive infection. However, the recognition of iNTS infection among children is difficult before culture. We studied children who had NTS infections in a tertiary pediatric hospital in Ningbo and found that iNTS infections were more likely to occur in infants ≤6 months or children with an underlying medical condition of leukemia at admission, while diarrhea was more common in children with non-iNTS infections. The high rates of antibiotic resistance among children with NTS in Ningbo calls for continuous NTS surveillance. On the other hand, high temperatures and heavy rainfall were positively associated with NTS hospitalizations among children. These findings may help us to improve measures for the prevention, diagnosis and treatment of NTS infections among children.
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Affiliation(s)
- Yefang Ke
- Department of Clinical Laboratory, Ningbo Women and Children’s Hospital, Ningbo, Zhejiang, China
| | - Wenbo Lu
- Department of Clinical Laboratory, Ningbo Women and Children’s Hospital, Ningbo, Zhejiang, China
| | - Wenyuan Liu
- Department of Clinical Laboratory, Ningbo Women and Children’s Hospital, Ningbo, Zhejiang, China
| | - Pan Zhu
- Neonatal Intensive Care Unit, Ningbo Women and Children’s Hospital, Ningbo, Zhejiang, China
| | - Qunying Chen
- Department of Clinical Laboratory, Ningbo Women and Children’s Hospital, Ningbo, Zhejiang, China
| | - Zhe Zhu
- Department of Blood Transfusion, HwaMei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang, China
- Ningbo Institute of Life and Health Industry, University of Chinese Academy of Sciences, Ningbo, Zhejiang, China
- * E-mail:
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Stull-Lane AR, Lokken-Toyli KL, Diaz-Ochoa VE, Walker GT, Cevallos SA, Winter ALN, Muñoz ADH, Yang GG, Velazquez EM, Wu CY, Tsolis RM. Vitamin A supplementation boosts control of antibiotic-resistant Salmonella infection in malnourished mice. PLoS Negl Trop Dis 2020; 14:e0008737. [PMID: 33006970 PMCID: PMC7556496 DOI: 10.1371/journal.pntd.0008737] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 10/14/2020] [Accepted: 08/20/2020] [Indexed: 01/03/2023] Open
Abstract
Disseminated disease from non-typhoidal Salmonella enterica strains results in >20% mortality globally. Barriers to effective treatment include emerging multidrug resistance, antibiotic treatment failure, and risk factors such as malnutrition and related micronutrient deficiencies. Individuals in sub-Saharan Africa are disproportionately affected by non-typhoidal S. enterica bloodstream infections. To inform a clinical trial in people, we investigated vitamin A as a treatment in the context of antibiotic treatment failure in a mouse model of vitamin A deficiency. Vitamin A-deficient (VAD) mice exhibited higher systemic bacterial levels with a multidrug-resistant clinical isolate in comparison to mice on a control diet. Sex-specific differences in vitamin A deficiency and disseminated infection with S. enterica serotype Typhimurium (S. Typhimurium) were observed. VAD male mice had decreased weight gain compared to control male mice. Further, infected VAD male mice had significant weight loss and decreased survival during the course of infection. These differences were not apparent in female mice. In a model of disseminated S. Typhimurium infection and antibiotic treatment failure, we assessed the potential of two consecutive doses of vitamin A in alleviating infection in male and female mice on a VAD or control diet. We found that subtherapeutic antibiotic treatment synergized with vitamin A treatment in infected VAD male mice, significantly decreasing systemic bacterial levels, mitigating weight loss and improving survival. These results suggest that assessing vitamin A as a therapy during bacteremia in malnourished patients may lead to improved health outcomes in a subset of patients, especially in the context of antibiotic treatment failure. Non-typhoidal Salmonella serotypes generally cause diarrhea in people. However, there are certain factors that make people at risk of developing a more severe infection where the bacteria can enter the blood and cause fever and whole-body symptoms. Patients with this infection are usually hospitalized, and about one in five patients do not survive. The factors that make this bloodstream infection possible include pathogen features like resistance to antibiotics and patient factors like a malnourished state. Better treatments are needed. In this study, the authors assess vitamin A as a treatment during antibiotic treatment failure in a mouse model. Vitamin A-deficient male mice have better outcomes with vitamin A and antibiotic co-therapy, whereas female mice do not benefit. Despite similar levels of bacteria causing infection systemically, female mice show better outcomes in terms of weight loss and survival than male mice overall. This research provides evidence that a clinical study assessing vitamin A as a treatment in people could lead to improved survival for malnourished patients presenting with severe bloodstream infection.
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Affiliation(s)
- Annica R. Stull-Lane
- Department of Microbiology & Immunology, School of Medicine, University of California Davis, Davis, California, United States of America
| | - Kristen L. Lokken-Toyli
- Department of Microbiology & Immunology, School of Medicine, University of California Davis, Davis, California, United States of America
- Department of Microbiology, New York University, New York, New York, United States of America
| | - Vladimir E. Diaz-Ochoa
- Department of Microbiology & Immunology, School of Medicine, University of California Davis, Davis, California, United States of America
| | - Gregory T. Walker
- Department of Microbiology & Immunology, School of Medicine, University of California Davis, Davis, California, United States of America
| | - Stephanie A. Cevallos
- Department of Microbiology & Immunology, School of Medicine, University of California Davis, Davis, California, United States of America
| | - Andromeda L. N. Winter
- Department of Microbiology & Immunology, School of Medicine, University of California Davis, Davis, California, United States of America
| | - Ariel Del Hoyo Muñoz
- Department of Microbiology & Immunology, School of Medicine, University of California Davis, Davis, California, United States of America
| | - Guiyan G. Yang
- Department of Microbiology & Immunology, School of Medicine, University of California Davis, Davis, California, United States of America
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Eric M. Velazquez
- Department of Microbiology & Immunology, School of Medicine, University of California Davis, Davis, California, United States of America
| | - Chun-Yi Wu
- Department of Neurology, School of Medicine, University of California, Davis, Sacramento, California, United States of America
| | - Renée M. Tsolis
- Department of Microbiology & Immunology, School of Medicine, University of California Davis, Davis, California, United States of America
- * E-mail:
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Qureshi S, Naveed AB, Yousafzai MT, Ahmad K, Ansari S, Lohana H, Mukhtar A, Qamar FN. Response of extensively drug resistant Salmonella Typhi to treatment with meropenem and azithromycin, in Pakistan. PLoS Negl Trop Dis 2020; 14:e0008682. [PMID: 33057330 PMCID: PMC7561124 DOI: 10.1371/journal.pntd.0008682] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 08/05/2020] [Indexed: 11/30/2022] Open
Abstract
INTRODUCTION Salmonella Typhi is one of the leading health problems in Pakistan. With the emergence of extensively drug resistant (XDR) Salmonella Typhi, treatment options are limited. Here we report the clinical manifestations and the response to treatment of patients with XDR Typhoid fever. The patients were treated with either Meropenem or Azithromycin or a combination of both. METHODS We reviewed the records of culture confirmed XDR typhoid who visited Aga Khan University Hospital (AKUH), Karachi and Aga Khan Secondary Care Hospital, Hyderabad from April 2017 to June 2018. Symptoms developed during disease, unplanned treatment extension and complications developed while on antimicrobials was recorded. Means with standard deviation were calculated for duration of treatment, time to defervescence, and cost of treatment. RESULTS Records of 81 culture confirmed XDR typhoid patients admitted at the AKU hospitals were reviewed. Most, (n = 45; 56%) were male. Mean age of the cases was 8.03 years with range (1-40). About three quarter (n = 66) of the patients were treated as inpatient. Fever and vomiting were the most common symptoms at the time of presentation. Oral azithromycin alone (n = 22; 27%), intravenous meropenem alone (n = 20; 25%), or a combination of azithromycin and meropenem (n = 39; 48%) were the options used for treatment. Average (95% confidence interval) time to defervescence was 7.1(5.5-8.6), 6.7(4.7-8.7), and 6.7(5.5-7.9) days for each treatment option respectively whereas there were 1,0 and 3 treatment failures in each treatment option respectively. Average cost of treatment per day for azithromycin was US$5.87 whereas it was US$88.46 for meropenem. CONCLUSION Patients treated with either Azithromycin, Meropenem alone or in combination showed similar time to defervescence. Because of the lower cost of azithromycin, it is preferable in lower socio-economic areas. Background estimates for power calculation can be made for more robust clinical trials using this observational data.
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Affiliation(s)
- Sonia Qureshi
- Department of Pediatrics and Child Health, Aga Khan University Hospital, Karachi, Pakistan
| | | | | | - Khalil Ahmad
- Department of Pediatrics and Child Health, Aga Khan University Hospital, Karachi, Pakistan
| | - Sarwat Ansari
- Department of Pediatric and Child Health, Aga Khan Maternal and Child Care Centre, Hyderabad, Pakistan
| | - Heeramani Lohana
- Department of Pediatric and Child Health, Aga Khan Maternal and Child Care Centre, Hyderabad, Pakistan
| | - Aimen Mukhtar
- Department of Pediatrics and Child Health, Aga Khan University Hospital, Karachi, Pakistan
| | - Farah Naz Qamar
- Department of Pediatrics and Child Health, Aga Khan University Hospital, Karachi, Pakistan
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Sulyma V, Sribniak A, Bihun R, Sribniak Z. Case Study of Emphysematous Osteomyelitis of Both Femoral Heads. Ortop Traumatol Rehabil 2020; 22:267-270. [PMID: 32986006 DOI: 10.5604/01.3001.0014.3463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Early references of emphysematous osteomyelitis (EO) in the literature trace back to 1981, when the presence of intraosseous gas was mentioned in a paper of Ram et al.. Subsequently, 48 cases of EO were described. A significant underlying comorbidity was reported in most EO cases, especially diabetes and malignancy. This report presents a 37-year-old male with undiagnosed diabetes mellitus which was accompanied by emphysematous osteomyelitis of both femoral heads.
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Affiliation(s)
- Vadym Sulyma
- Department of Traumatology and Orthopedics, Ivano-Frankivsk National Medical University of the Ministry of Health of Ukraine, Ivano-Frankivsk, Ukraine
| | - Andrii Sribniak
- Department of Traumatology and Orthopedics, Ivano-Frankivsk National Medical University of the Ministry of Health of Ukraine, Ivano-Frankivsk, Ukraine
| | - Roman Bihun
- Department of Traumatology and Orthopedics, Ivano-Frankivsk National Medical University of the Ministry of Health of Ukraine, Ivano-Frankivsk, Ukraine
| | - Zinovii Sribniak
- Department of Traumatology, Kalush Central Regional Hospital, Kalush, Ukraine
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Tack B, Vanaenrode J, Verbakel JY, Toelen J, Jacobs J. Invasive non-typhoidal Salmonella infections in sub-Saharan Africa: a systematic review on antimicrobial resistance and treatment. BMC Med 2020; 18:212. [PMID: 32677939 PMCID: PMC7367361 DOI: 10.1186/s12916-020-01652-4] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 05/25/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Non-typhoidal Salmonella (NTS) are a frequent cause of invasive infections in sub-Saharan Africa. They are frequently multidrug resistant (co-resistant to ampicillin, trimethoprim-sulfamethoxazole, and chloramphenicol), and resistance to third-generation cephalosporin and fluoroquinolone non-susceptibility have been reported. Third-generation cephalosporins and fluoroquinolones are often used to treat invasive NTS infections, but azithromycin might be an alternative. However, data on antibiotic treatment efficacy in invasive NTS infections are lacking. In this study, we aimed to assess the spatiotemporal distribution of antimicrobial resistance in invasive NTS infections in sub-Saharan Africa and to describe the available evidence and recommendations on antimicrobial treatment. METHODS We conducted a systematic review of all available literature on antimicrobial resistance and treatment in invasive NTS infections. We performed a random effects meta-analysis to assess the temporal distribution of multidrug resistance, third-generation cephalosporin resistance, and fluoroquinolone non-susceptibility. We mapped these data to assess the spatial distribution. We provided a narrative synthesis of the available evidence and recommendations on antimicrobial treatment. RESULTS Since 2001, multidrug resistance was observed in 75% of NTS isolates from all sub-Saharan African regions (95% confidence interval, 70-80% and 65-84%). Third-generation cephalosporin resistance emerged in all sub-Saharan African regions and was present in 5% (95% confidence interval, 1-10%) after 2010. Fluoroquinolone non-susceptibility emerged in all sub-Saharan African regions but did not increase over time. Azithromycin resistance was reported in DR Congo. There were no reports on carbapenem resistance. We did not find high-quality evidence on the efficacy of antimicrobial treatment. There were no supranational guidelines. The "Access group" antibiotics ampicillin, trimethoprim-sulfamethoxazole, and chloramphenicol and "Watch group" antibiotics ceftriaxone, cefotaxime, and ciprofloxacin were recommended as the first-choice antibiotics in national guidelines or reviews. These also recommended (a switch to) oral fluoroquinolones or azithromycin. CONCLUSIONS In addition to the widespread multidrug resistance in invasive NTS infections in sub-Saharan Africa, resistance to third-generation cephalosporins and fluoroquinolone non-susceptibility was present in all regions. There was a lack of data on the efficacy of antimicrobial treatment in these infections, and supranational evidence-based guidelines were absent.
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Affiliation(s)
- Bieke Tack
- Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.
| | | | - Jan Y Verbakel
- Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium
| | - Jaan Toelen
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
- Division of Woman and Child, Department of Pediatrics, University Hospitals Leuven, Leuven, Belgium
| | - Jan Jacobs
- Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
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Shima N, Nakamura J, Saito K, Kamata Y, Nagatani K, Nagashima T, Iwamoto M, Akine D, Saito T, Sato K, Minota S. Salmonella enterica Subspecies arizonae Detected from Bilateral Pleural Fluid in a Patient with Systemic Lupus Erythematosus and Malignant Lymphoma. Intern Med 2020; 59:1223-1226. [PMID: 32051382 PMCID: PMC7270754 DOI: 10.2169/internalmedicine.3982-19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
A 72-year-old woman was admitted to our hospital with bilateral pleural effusions. She had a 31-year history of systemic lupus erythematosus and had been treated with prednisolone and azathioprine. Pleural fluid culture revealed Salmonella enterica subsp. arizonae infection. This pathogen rarely infects humans but is commonly found in the gut flora of reptiles, especially snakes. Our patient had not come in contact with reptiles. Despite antibiotic therapies and negative pleural cultures, the pleural effusion persisted. Colon cancer was detected concomitantly, and she finally died. The autopsy revealed that the pleuritis was due to underlying diffuse large B cell lymphoma.
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Affiliation(s)
- Natsuki Shima
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Jichi Medical University, Japan
| | - Jun Nakamura
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Jichi Medical University, Japan
| | - Keisuke Saito
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Jichi Medical University, Japan
| | - Yasuyuki Kamata
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Jichi Medical University, Japan
| | - Katsuya Nagatani
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Jichi Medical University, Japan
| | - Takao Nagashima
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Jichi Medical University, Japan
| | - Masahiro Iwamoto
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Jichi Medical University, Japan
| | - Dai Akine
- Health Service Center, Jichi Medical University, Japan
- Division of Clinical Infectious Diseases, Department of Infection and Immunity, Jichi Medical University, Japan
| | - Tatsuya Saito
- Division of Pulmonary Medicine, Department of Medicine, Jichi Medical University, Japan
| | - Kojiro Sato
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Jichi Medical University, Japan
| | - Seiji Minota
- Division of Rheumatology and Clinical Immunology, Department of Medicine, Jichi Medical University, Japan
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He WQ, Kirk MD, Sintchenko V, Hall JJ, Liu B. Antibiotic Use Associated with Confirmed Influenza, Pertussis, and Nontyphoidal Salmonella Infections. Microb Drug Resist 2020; 26:1482-1490. [PMID: 32315565 DOI: 10.1089/mdr.2020.0017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Purpose: Antibiotics are not the recommended treatment for uncomplicated influenza or nontyphoidal salmonella infections, whereas they are for current pertussis infection. We investigated adherence to these recommendations in a population of older community-dwelling adults. Methods: Population-based prospective cohort study of Australian adults 45 years of age and older followed by record-linkage to laboratory-confirmed influenza, pertussis, and nontyphoidal salmonella notifications, hospitalization records, and antibiotic dispensing data from January 1, 2009 to December 31, 2015. Proportions of those with infections who were prescribed antibiotics were estimated, and characteristics associated with antibiotic prescribing were examined. Results: There were 1,056 influenza, 151 pertussis, and 334 nontyphoidal salmonella cases in the cohort eligible for analysis. Antibiotics were dispensed in 56.2% (594/1,056) of influenza, 78.8% (119/151) of pertussis, and 39.5% (132/334) of nontyphoidal salmonella cases within the ±10-day window around the infection onset date. The likelihood of antibiotic dispensing did not differ according to most participant characteristics examined, including whether cases had an associated hospitalization, their age, and recorded comorbidities. Macrolides were the predominant class of antibiotics dispensed for pertussis (79%), whereas both beta-lactams (36.3%) and macrolides (35.4%) were used for cases of influenza. There was no dominant antibiotic class dispensed among those with nontyphoidal salmonella. Conclusions: Given concerns regarding increasing antibiotic resistance, the high proportion of adults with influenza and nontyphoidal salmonella cases dispensed antibiotics indicate the need for further strengthening of antimicrobial stewardship by raising education and awareness of guidelines for managing these infections.
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Affiliation(s)
- Wen-Qiang He
- School of Public Health and Community Medicine, UNSW Sydney, Sydney, Australia
| | - Martyn D Kirk
- National Center for Epidemiology and Population Health, Research School of Population Health, Australian National University, Canberra, Australia
| | - Vitali Sintchenko
- Center for Infectious Disease and Microbiology-Public Health, Westmead Hospital, Sydney, Australia
- Marie Bashir Institute for Infectious Diseases and Biosecurity, Sydney Medical School, The University of Sydney, Sydney, Australia
| | - John J Hall
- School of Public Health and Community Medicine, UNSW Sydney, Sydney, Australia
| | - Bette Liu
- School of Public Health and Community Medicine, UNSW Sydney, Sydney, Australia
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Pradhan B, Guha D, Naik AK, Banerjee A, Tambat S, Chawla S, Senapati S, Aich P. Probiotics L. acidophilus and B. clausii Modulate Gut Microbiota in Th1- and Th2-Biased Mice to Ameliorate Salmonella Typhimurium-Induced Diarrhea. Probiotics Antimicrob Proteins 2020; 11:887-904. [PMID: 29909486 DOI: 10.1007/s12602-018-9436-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Gut microbiota play important role in maintaining health. Probiotics are believed to augment it further. We aimed at comparing effects of probiotics, Lactobacillus acidophilus (LA) and Bacillus clausii (BC) (a) on the gut microbiota abundance and diversity and (b) their contributions to control intestinal dysbiosis and inflammation in Th1- and Th2-biased mice following Salmonella infection. We report how could gut microbiota and the differential immune bias (Th1 or Th2) of the host regulate host responses when challenged with Salmonella typhimurium in the presence and absence of either of the probiotics. LA was found to be effective in ameliorating the microbial dysbiosis and inflammation caused by Salmonella infection, in Th1 (C57BL/6) and Th2 (BALB/c)-biased mouse. BC was able to ameliorate Salmonella-induced dysbiosis and inflammation in Th2 but not in Th1-biased mouse. These results may support probiotics LA as a treatment option in the case of Salmonella infection.
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Affiliation(s)
- Biswaranjan Pradhan
- School of Biological Sciences, National Institute of Science Education and Research (NISER), HBNI, P.O. Bhimpur-Padanpur, Jatni, Khurdha, Odisha, 752050, India
- S. K. Dash Center of Excellence of Biosciences and Engineering & Technology (SKBET), Indian Institute of Technology Bhubaneswar, Bhubaneswar, Odisha, India
| | - Dipanjan Guha
- School of Biological Sciences, National Institute of Science Education and Research (NISER), HBNI, P.O. Bhimpur-Padanpur, Jatni, Khurdha, Odisha, 752050, India
| | - Aman Kumar Naik
- School of Biological Sciences, National Institute of Science Education and Research (NISER), HBNI, P.O. Bhimpur-Padanpur, Jatni, Khurdha, Odisha, 752050, India
| | - Arka Banerjee
- School of Biological Sciences, National Institute of Science Education and Research (NISER), HBNI, P.O. Bhimpur-Padanpur, Jatni, Khurdha, Odisha, 752050, India
- Biozentrum der Universität Basel, 50-70 Klingelbergstrasse, 4056, Basel, Switzerland
| | - Subodh Tambat
- Bionivid Technology Private Limited, 209, 4th Cross Rd, B Channasandra, East of NGEF Layout, Kasturi Nagar, Bengaluru, Karnataka, 560043, India
| | - Saurabh Chawla
- School of Biological Sciences, National Institute of Science Education and Research (NISER), HBNI, P.O. Bhimpur-Padanpur, Jatni, Khurdha, Odisha, 752050, India
| | - Shantibhusan Senapati
- Institute of Life Sciences, Nalco Square, Chandrasekharpur, Bhubaneswar, Odisha, 751023, India
| | - Palok Aich
- School of Biological Sciences, National Institute of Science Education and Research (NISER), HBNI, P.O. Bhimpur-Padanpur, Jatni, Khurdha, Odisha, 752050, India.
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Luvsansharav UO, Wakhungu J, Grass J, Oneko M, Nguyen V, Bigogo G, Ogola E, Audi A, Onyango D, Hamel MJ, Montgomery JM, Fields PI, Mahon BE. Exploration of risk factors for ceftriaxone resistance in invasive non-typhoidal Salmonella infections in western Kenya. PLoS One 2020; 15:e0229581. [PMID: 32126103 PMCID: PMC7053705 DOI: 10.1371/journal.pone.0229581] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 02/10/2020] [Indexed: 01/21/2023] Open
Abstract
Multidrug-resistant non-typhoidal Salmonella (NTS) infection has emerged as a prominent cause of invasive infections in Africa. We investigated the prevalence of ceftriaxone-resistant invasive NTS infections, conducted exploratory analysis of risk factors for resistance, and described antimicrobial use in western Kenya. We conducted a secondary analysis of existing laboratory, epidemiology, and clinical data from three independent projects, a malaria vaccine trial, a central nervous system (CNS) study, and the International Emerging Infections Program morbidity surveillance (surveillance program) during 2009-2014. We calculated odds ratios (OR) with 95% confidence intervals (CI) for ceftriaxone-resistant NTS infections compared with ceftriaxone-susceptible infections. We surveyed hospitals, pharmacies, and animal drug retailers about the availability and use of antimicrobials. In total, 286 invasive NTS infections were identified in the three projects; 43 NTS isolates were ceftriaxone-resistant. The absolute prevalence of ceftriaxone resistance varied among these methodologically diverse projects, with 18% (16/90) of isolates resistant to ceftriaxone in the vaccine trial, 89% (16/18) in the CNS study, and 6% (11/178) in the surveillance program. Invasive ceftriaxone-resistant infections increased over time. Most ceftriaxone-resistant isolates were co-resistant to multiple other antimicrobials. Having an HIV-positive mother (OR = 3.7; CI = 1.2-11.4) and taking trimethoprim-sulfamethoxazole for the current illness (OR = 9.6, CI = 1.2-78.9) were significantly associated with acquiring ceftriaxone-resistant invasive NTS infection. Ceftriaxone and other antibiotics were widely prescribed; multiple issues related to prescription practices and misuse were identified. In summary, ceftriaxone-resistant invasive NTS infection is increasing and limiting treatment options for serious infections. Efforts are ongoing to address the urgent need for improved microbiologic diagnostic capacity and an antimicrobial surveillance system in Kenya.
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Affiliation(s)
- Ulzii-Orshikh Luvsansharav
- Epidemic Intelligence Service, Epidemiology Workforce Branch, Division of Scientific Education and Professional Development, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
- Enteric Diseases Epidemiology Branch, Division of Foodborne, Waterborne and Environmental Diseases, National Center for Emerging Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - James Wakhungu
- Field Epidemiology and Laboratory Training Program, Ministry of Health, Nairobi, Kenya
| | - Julian Grass
- Enteric Diseases Epidemiology Branch, Division of Foodborne, Waterborne and Environmental Diseases, National Center for Emerging Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Martina Oneko
- Centre for Global Health Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Von Nguyen
- Epidemic Intelligence Service, Epidemiology Workforce Branch, Division of Scientific Education and Professional Development, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
- Enteric Diseases Epidemiology Branch, Division of Foodborne, Waterborne and Environmental Diseases, National Center for Emerging Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Godfrey Bigogo
- Centre for Global Health Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Eric Ogola
- Centre for Global Health Research, Kenya Medical Research Institute, Nairobi, Kenya
| | - Allan Audi
- Centre for Global Health Research, Kenya Medical Research Institute, Nairobi, Kenya
| | | | - Mary J Hamel
- Malaria Branch, Division of Parasitic Diseases and Malaria, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Joel M Montgomery
- Division of Global Health Protection, Centers for Disease Control and Prevention, Nairobi, Kenya
| | - Patricia I Fields
- Enteric Diseases Laboratory Branch, Division of Foodborne, Waterborne and Environmental Diseases, National Center for Emerging Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
| | - Barbara E Mahon
- Enteric Diseases Epidemiology Branch, Division of Foodborne, Waterborne and Environmental Diseases, National Center for Emerging Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America
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50
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Shin YR, Park KS, Cho KJ, Yoon TR. Bilateral septic arthritis of the hip caused by nontyphoidal salmonella: A case report. Acta Orthop Traumatol Turc 2020; 54:217-220. [PMID: 32254040 DOI: 10.5152/j.aott.2020.02.278] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Nontyphoidal salmonella (NTS) infection can lead to gastroenteritis, enteric fever, and bacteremia. However, osteoarticular infections caused by NTS are rarely encountered. We report the case of a 53-year-old male patient with bilateral hip infection caused by NTS. We performed a two-stage reconstruction comprising debridement of both hip joints followed by prosthetic replacement with antibiotic-loaded acrylic cement because the patient's diagnosis was delayed for approximately three months and the hip joints were already damaged. At two-year follow-up, the clinical, radiologic, and laboratory findings were within the normal limits, and there was no sign of infection. This case is presented because reports of bilateral hip joint infection due to NTS are rare. Early detection and proper treatment are essential for the eradication of the infection. The use of a prosthesis made of antibiotic-loaded acrylic cement and prolonged antimicrobial therapy can be considered in the management of bilateral hip joint destruction due to delayed diagnosis of NTS infection.
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Affiliation(s)
- Young-Rok Shin
- Department of Orthopedic Surgery, Center for Joint Disease, Chonnam National University Hwasun Hospital, Hwasun-Gun, Jeonnam, Korea
| | - Kyung-Soon Park
- Department of Orthopedic Surgery, Center for Joint Disease, Chonnam National University Hwasun Hospital, Hwasun-Gun, Jeonnam, Korea
| | - Kyu-Jin Cho
- Department of Orthopedic Surgery, Center for Joint Disease, Chonnam National University Hwasun Hospital, Hwasun-Gun, Jeonnam, Korea
| | - Taek-Rim Yoon
- Department of Orthopedic Surgery, Center for Joint Disease, Chonnam National University Hwasun Hospital, Hwasun-Gun, Jeonnam, Korea
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