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Rong JC, Cui LL, Li N, Yi ML, Huang BT, Zhao Q. Genomic profiling of biosynthetic potentials of medicinal secondary metabolites for 'Aliisedimentitalea scapharcae' KCTC 42119 T, isolated from ark shell. Mar Genomics 2024; 76:101124. [PMID: 39009498 DOI: 10.1016/j.margen.2024.101124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/26/2024] [Accepted: 06/01/2024] [Indexed: 07/17/2024]
Abstract
Microorganisms living with higher organisms are valuable sources of bioactive substances like antibiotics, which could assist them competing for more and better nutrients or space. Here, we focused on a marine animal-associated bacterium, 'Aliisedimentitalea scapharcae' KCTC 42119T, which was isolated from ark shell collected from Gang-Jin bay of South Korea. We evaluated its biosynthetic potentials of medicinal secondary metabolites by de novo genome sequencing. The complete genome of strain KCTC 42119T sequenced is 5,083,900 bp and is comprised of one circular chromosome and four circular plasmids. Functional genome analysis by antiSMASH v7.1.0 showed that there are nine biosynthetic gene clusters encoded on the chromosome. The annotated secondary metabolites include antibiotic corynecin, cytoprotective ectoine and antineoplastic ET-743 (Yondelis), which suggested strain KCTC 42119T possesses potentials to synthesize a series of secondary metabolites of pharmaceutical utility. Genome analysis of 'A. scapharcae' also provides more insights into mining bioactive substances from animal-associated microorganisms.
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Affiliation(s)
- Jin-Cheng Rong
- Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
| | - Lin-Lin Cui
- Weihai Second Municipal Hospital, Qingdao University, Weihai 264200, China
| | - Na Li
- Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
| | - Mao-Li Yi
- Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
| | - Bo-Tao Huang
- Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China.
| | - Qi Zhao
- Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China.
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Derin O, Şahin M, Dumlu R, Başgönül S, Bayrak AD, Arduç Ş, Bayram S, Mikaliyova N, Kantürk A, Öncül A, Yıldız Sevgi D, Gençer S, Bayraktar B, Dökmetaş İ, Mert A. Registry-Based Retrospective Cohort Study of Mortality among Adults Admitted to Intensive Care Units in Istanbul with Hospital Acquired Pseudomonas aeruginosa Bloodstream-Infection between 2014-2021. Antibiotics (Basel) 2024; 13:90. [PMID: 38247649 PMCID: PMC10812563 DOI: 10.3390/antibiotics13010090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/05/2024] [Accepted: 01/06/2024] [Indexed: 01/23/2024] Open
Abstract
BACKGROUND Managing Pseudomonas aeruginosa bloodstream infections (BSIs) is challenging due to increasing antimicrobial resistance, limited therapeutic options, and high mortality rates. In this study, we aimed to identify 30-day mortality risk factors and assess infectious diseases consultants' preferences for combination or monotherapy. METHODS The study was conducted in four hospitals in Istanbul, Turkey, involving 140 adult ICU beds and 336,780 ICU-bed-days between 1 January 2014, and 31 December 2021. A total of 157 patients were included in the study. Cox proportional hazard regression was performed to assess the factors on 30-day mortality. RESULTS The 30-day mortality rate was 44.6% (70/157). Higher Charlson Comorbidity Index (CCI) score, severe sepsis, primary bloodstream infection, being in COVID-19 pandemic period, and infection caused by MDR strain were associated with higher hazard of 30-day mortality. Combination therapy was more commonly used in patients with BSIs with MDR or DTR (difficult-to-treat) strains but did not significantly improve the hazard of 30-day mortality. CONCLUSIONS Targeted interventions and vigilant management strategies are crucial for patients with defined risk factors. While infectious disease consultants tended to favor combination therapy, particularly for drug-resistant strains, our analysis revealed no significant impact on 30-day mortality hazard. The increased incidence of P. aeruginosa BSIs during the pandemic emphasizes the need for infection control measures and appropriate antibiotic prescribing practices.
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Affiliation(s)
- Okan Derin
- Graduate School of Health Sciences, Epidemiology Doctorate Program, Istanbul Medipol University, 34815 Istanbul, Turkey
- Istanbul Şişli Hamidiye Etfal Training and Research Hospital Infectious Diseases and Clinical Microbiology, 34396 Istanbul, Turkey; (A.D.B.); (A.Ö.); (D.Y.S.); (İ.D.)
| | - Meyha Şahin
- Faculty of Medicine, Infectious Diseases and Clinical Microbiology, Istanbul Medipol University, 34214 Istanbul, Turkey; (M.Ş.); (N.M.)
| | - Rıdvan Dumlu
- Istanbul Prof. Dr. Cemil Taşçıoğlu Training and Research Hospital, Infectious Diseases and Clinical Microbiology, 34384 Istanbul, Turkey; (R.D.); (S.B.); (A.K.)
| | - Sedef Başgönül
- Department of Infectious Diseases and Clinical Microbiology, Acıbadem Mehmet Ali Aydınlar University, 34752 Istanbul, Turkey; (S.B.); (S.G.)
| | - Ahmet Doğukan Bayrak
- Istanbul Şişli Hamidiye Etfal Training and Research Hospital Infectious Diseases and Clinical Microbiology, 34396 Istanbul, Turkey; (A.D.B.); (A.Ö.); (D.Y.S.); (İ.D.)
- Hamidiye Faculty of Health Sciences, University of Health Sciences, 34668 Istanbul, Turkey; (Ş.A.); (B.B.)
| | - Şevval Arduç
- Hamidiye Faculty of Health Sciences, University of Health Sciences, 34668 Istanbul, Turkey; (Ş.A.); (B.B.)
- Istanbul Şişli Hamidiye Etfal Training and Research Hospital Microbiology and Clinical Microbiology, 34396 Istanbul, Turkey
| | - Sümeyye Bayram
- Istanbul Prof. Dr. Cemil Taşçıoğlu Training and Research Hospital, Infectious Diseases and Clinical Microbiology, 34384 Istanbul, Turkey; (R.D.); (S.B.); (A.K.)
- Hamidiye Faculty of Health Sciences, University of Health Sciences, 34668 Istanbul, Turkey; (Ş.A.); (B.B.)
| | - Nurlana Mikaliyova
- Faculty of Medicine, Infectious Diseases and Clinical Microbiology, Istanbul Medipol University, 34214 Istanbul, Turkey; (M.Ş.); (N.M.)
| | - Arzu Kantürk
- Istanbul Prof. Dr. Cemil Taşçıoğlu Training and Research Hospital, Infectious Diseases and Clinical Microbiology, 34384 Istanbul, Turkey; (R.D.); (S.B.); (A.K.)
| | - Ahsen Öncül
- Istanbul Şişli Hamidiye Etfal Training and Research Hospital Infectious Diseases and Clinical Microbiology, 34396 Istanbul, Turkey; (A.D.B.); (A.Ö.); (D.Y.S.); (İ.D.)
| | - Dilek Yıldız Sevgi
- Istanbul Şişli Hamidiye Etfal Training and Research Hospital Infectious Diseases and Clinical Microbiology, 34396 Istanbul, Turkey; (A.D.B.); (A.Ö.); (D.Y.S.); (İ.D.)
- Hamidiye Faculty of Health Sciences, University of Health Sciences, 34668 Istanbul, Turkey; (Ş.A.); (B.B.)
| | - Serap Gençer
- Department of Infectious Diseases and Clinical Microbiology, Acıbadem Mehmet Ali Aydınlar University, 34752 Istanbul, Turkey; (S.B.); (S.G.)
| | - Banu Bayraktar
- Hamidiye Faculty of Health Sciences, University of Health Sciences, 34668 Istanbul, Turkey; (Ş.A.); (B.B.)
- Istanbul Şişli Hamidiye Etfal Training and Research Hospital Microbiology and Clinical Microbiology, 34396 Istanbul, Turkey
| | - İlyas Dökmetaş
- Istanbul Şişli Hamidiye Etfal Training and Research Hospital Infectious Diseases and Clinical Microbiology, 34396 Istanbul, Turkey; (A.D.B.); (A.Ö.); (D.Y.S.); (İ.D.)
- Hamidiye Faculty of Health Sciences, University of Health Sciences, 34668 Istanbul, Turkey; (Ş.A.); (B.B.)
| | - Ali Mert
- Department of Internal Medicine, Istanbul Medipol University, 34815 Istanbul, Turkey
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Mourer M, Regnouf-de-Vains JB, Duval RE. Functionalized Calixarenes as Promising Antibacterial Drugs to Face Antimicrobial Resistance. Molecules 2023; 28:6954. [PMID: 37836797 PMCID: PMC10574364 DOI: 10.3390/molecules28196954] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/25/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023] Open
Abstract
Since the discovery of polyphenolic resins 150 years ago, the study of polymeric compounds named calix[n]arene has continued to progress, and those skilled in the art perfectly know now how to modulate this phenolic ring. Consequently, calix[n]arenes are now used in a large range of applications and notably in therapeutic fields. In particular, the calix[4]arene exhibits multiple possibilities for regioselective polyfunctionalization on both of its rims and offers researchers the possibility of precisely tuning the geometry of their structures. Thus, in the crucial research of new antibacterial active ingredients, the design of calixarenes finds its place perfectly. This review provides an overview of the work carried out in this aim towards the development of intrinsically active prodrogues or metallic calixarene complexes. Out of all the work of the community, there are some excellent activities emerging that could potentially place these original structures in a very good position for the development of new active ingredients.
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Affiliation(s)
- Maxime Mourer
- Université de Lorraine, CNRS, L2CM, F-54000 Nancy, France
| | | | - Raphaël E Duval
- Université de Lorraine, CNRS, L2CM, F-54000 Nancy, France
- ABC Platform®, F-54505 Vandœuvre-lès-Nancy, France
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