1
|
Doganay MT, Chelliah CJ, Tozluyurt A, Hujer AM, Obaro SK, Gurkan U, Patel R, Bonomo RA, Draz M. 3D Printed Materials for Combating Antimicrobial Resistance. MATERIALS TODAY (KIDLINGTON, ENGLAND) 2023; 67:371-398. [PMID: 37790286 PMCID: PMC10545363 DOI: 10.1016/j.mattod.2023.05.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Three-dimensional (3D) printing is a rapidly growing technology with a significant capacity for translational applications in both biology and medicine. 3D-printed living and non-living materials are being widely tested as a potential replacement for conventional solutions for testing and combating antimicrobial resistance (AMR). The precise control of cells and their microenvironment, while simulating the complexity and dynamics of an in vivo environment, provides an excellent opportunity to advance the modeling and treatment of challenging infections and other health conditions. 3D-printing models the complicated niches of microbes and host-pathogen interactions, and most importantly, how microbes develop resistance to antibiotics. In addition, 3D-printed materials can be applied to testing and delivering antibiotics. Here, we provide an overview of 3D printed materials and biosystems and their biomedical applications, focusing on ever increasing AMR. Recent applications of 3D printing to alleviate the impact of AMR, including developed bioprinted systems, targeted bacterial infections, and tested antibiotics are presented.
Collapse
Affiliation(s)
- Mert Tunca Doganay
- Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Cyril John Chelliah
- Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Abdullah Tozluyurt
- Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Andrea M Hujer
- Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
- Research Service, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, USA
| | | | - Umut Gurkan
- Mechanical and Aerospace Engineering Department, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, USA
| | - Robin Patel
- Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology and Division of Public Health, Infectious Diseases, and Occupational medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Robert A Bonomo
- Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
- Research Service, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, Cleveland, OH, USA
- Molecular Biology and Microbiology, Case Western Reserve University School of Medicine, Cleveland, OH, USA
- CWRU-Cleveland VAMC Center for Antimicrobial Resistance and Epidemiology (Case VA CARES) Cleveland, OH, USA
| | - Mohamed Draz
- Department of Medicine, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio, USA
- Molecular Biology and Microbiology, Case Western Reserve University School of Medicine, Cleveland, OH, USA
- Department of Biomedical Engineering, Cleveland Clinic, Cleveland, OH 44106, USA
| |
Collapse
|
2
|
Jayalakshmi J, Priyadharshini MS. Restricting high-end antibiotics usage - challenge accepted! J Family Med Prim Care 2019; 8:3292-3296. [PMID: 31742158 PMCID: PMC6857393 DOI: 10.4103/jfmpc.jfmpc_626_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 08/21/2019] [Accepted: 09/03/2019] [Indexed: 11/04/2022] Open
Abstract
Objectives: Antimicrobial resistance (AMR) leads to increased morbidity, mortality, and healthcare expenditure. The rate of development of AMR is accelerated by the use and misuse of antimicrobials. Preauthorization and restricted use of high-end antibiotics are the key modalities of antimicrobial stewardship. Hence, choosing the right antibiotics is the key to better clinical outcomes and preventing resistance in hospitals as well as communities. The present study was done to assess the judicious usage of high-end antibiotics among inpatients treated at our hospital. Materials and Methods: A prospective observational study was conducted on high-end antibiotic usage using a structured proforma among inpatients treated at our hospital for a 3 month period. Department wise educational intervention was done and feedbacks were provided, after which reassessment was done. Results and Analysis: Meropenem was the most commonly used high-end antibiotics. After the feedback and intervention, there was 51.2% reduction in the unjustified antibiotic usage. The appropriateness of the usage increased from 77% observed during preintervention to 88% postintervention. Conclusion: The increasing compliance of judicious usage of high-end antibiotics needs to be sustained. Therefore, continuous strengthening of antimicrobial stewardship practices are crucial.
Collapse
Affiliation(s)
- J Jayalakshmi
- Department of Microbiology, P.S.G. Institute of Medical, Sciences and Research, Coimbatore, Tamil Nadu, India
| | - M S Priyadharshini
- Department of Microbiology, P.S.G. Institute of Medical, Sciences and Research, Coimbatore, Tamil Nadu, India
| |
Collapse
|
3
|
Banerji A, Jahne M, Herrmann M, Brinkman N, Keely S. Bringing Community Ecology to Bear on the Issue of Antimicrobial Resistance. Front Microbiol 2019; 10:2626. [PMID: 31803161 PMCID: PMC6872637 DOI: 10.3389/fmicb.2019.02626] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 10/29/2019] [Indexed: 12/14/2022] Open
Abstract
Antimicrobial resistance (AMR) is a global concern, pertaining not only to human health but also to the health of industry and the environment. AMR research has traditionally focused on genetic exchange mechanisms and abiotic environmental constraints, leaving important aspects of microbial ecology unresolved. The genetic and ecological aspects of AMR, however, not only contribute separately to the problem but also are interrelated. For example, mutualistic associations among microbes such as biofilms can both serve as a barrier to antibiotic penetration and a breeding ground for horizontal exchange of antimicrobial resistance genes (ARGs). In this review, we elucidate how species interactions promote and impede the establishment, maintenance, and spread of ARGs and indicate how management initiatives might benefit from leveraging the principles and tools of community ecology to better understand and manipulate the processes underlying AMR.
Collapse
Affiliation(s)
- Aabir Banerji
- Office of Research and Development, Center for Environmental Measurement and Modeling, US Environmental Protection Agency, Cincinnati, OH, United States
| | | | | | | | | |
Collapse
|
4
|
Al-Jaeed N, Lahsasni S, Ghabbour HA, El-Sayed NNE. Crystal structure of N, N-dimethyl- N′-(2-methyl-4-oxo-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3- d]pyrimidin-3(4 H)-yl)formimidamide, C 14H 18N 4OS. Z KRIST-NEW CRYST ST 2017. [DOI: 10.1515/ncrs-2016-0212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C14H18N4OS, monoclinic, P21/c (no. 14), a = 15.479(4) Å, b = 13.203(3) Å, c = 7.3147(17) Å, β = 99.385(7)°, V = 1474.9(6) Å3, Z = 4, R
gt(F) = 0.070, wR
ref(F
2) = 0.197, T = 296(2).
Collapse
Affiliation(s)
- Nada Al-Jaeed
- Department of Chemistry, College of Science, King Saud University, Girls Section, P.O. Box 22452 Riyadh 11495, Saudi Arabia
| | - Siham Lahsasni
- Department of Chemistry, College of Science, King Saud University, Girls Section, P.O. Box 22452 Riyadh 11495, Saudi Arabia
| | - Hazem A. Ghabbour
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riaydh 11451, Saudi Arabia
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Nahed N. E. El-Sayed
- Department of Chemistry, College of Science, King Saud University, Girls Section, P.O. Box 22452 Riyadh 11495, Saudi Arabia
- National Organization for Drug Control and Research, Agouza, Giza 35521, Egypt
| |
Collapse
|
5
|
Rogers Van Katwyk S, Danik MÉ, Pantis I, Smith R, Røttingen JA, Hoffman SJ. Developing an approach to assessing the political feasibility of global collective action and an international agreement on antimicrobial resistance. Glob Health Res Policy 2016; 1:20. [PMID: 29202068 PMCID: PMC5693542 DOI: 10.1186/s41256-016-0020-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 11/23/2016] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Antimicrobial resistance (AMR) is a global issue. International trade, travel, agricultural practices, and environmental contamination all make it possible for resistant microbes to cross national borders. Global collective action is needed in the form of an international agreement or other mechanism that brings states together at the negotiation table and commits them to adopt or implement policies to limit the spread of resistant microorganisms. This article describes an approach to assessing whether political and stakeholder interests can align to commit to tackling AMR. METHODS Two dimensions affecting political feasibility were selected and compared across 82 countries: 1) states' global influence and 2) self-interest in addressing AMR. World Bank GDP ranking was used as a proxy for global influence, while human antibiotic consumption (10-year percent change) was used as a proxy for self-interest in addressing AMR. We used these data to outline a typology of four country archetypes, and discuss how these archetypes can be used to understand whether a proposed agreement may have sufficient support to be politically feasible. RESULTS Four types of countries exist within our proposed typology: 1) wealthy countries who have the expertise and financial resources to push for global collective action on AMR, 2) wealthy countries who need to act on AMR, 3) countries who require external assistance to act on AMR, and 4) neutral countries who may support action where applicable. Any international agreement will require substantial support from countries of the first type to lead global action, and from countries of the second type who have large increasing antimicrobial consumption levels. A large number of barriers exist that could derail efforts towards global collective action on AMR; issues of capacity, infrastructure, regulation, and stakeholder interests will need to be addressed in coordination with other actors to achieve an agreement on AMR. CONCLUSIONS Achieving a global agreement on access, conservation, and innovation - the three pillars of AMR - will not be easy. However, smaller core groups of interested Initiator and Pivotal Countries could develop policy and resolve many issues. If highly influential countries take the lead, agreements could then be scaled up to achieve global action.
Collapse
Affiliation(s)
- Susan Rogers Van Katwyk
- Global Strategy Lab, Centre for Health Law, Policy & Ethics, Faculty of Law, University of Ottawa, Ottawa, Canada
- School of Epidemiology, Public Health, and Preventive Medicine, University of Ottawa, Ottawa, Canada
| | - Marie Évelyne Danik
- Global Strategy Lab, Centre for Health Law, Policy & Ethics, Faculty of Law, University of Ottawa, Ottawa, Canada
| | - Ioana Pantis
- Global Strategy Lab, Centre for Health Law, Policy & Ethics, Faculty of Law, University of Ottawa, Ottawa, Canada
| | - Rachel Smith
- Global Strategy Lab, Centre for Health Law, Policy & Ethics, Faculty of Law, University of Ottawa, Ottawa, Canada
| | - John-Arne Røttingen
- Global Strategy Lab, Centre for Health Law, Policy & Ethics, Faculty of Law, University of Ottawa, Ottawa, Canada
- Division of Infection Control & Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
- Department of Health and Society, University of Oslo, Oslo, Norway
- Department of Global Health & Population, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA USA
| | - Steven J. Hoffman
- Global Strategy Lab, Centre for Health Law, Policy & Ethics, Faculty of Law, University of Ottawa, Ottawa, Canada
- Department of Clinical Epidemiology & Biostatistics and McMaster Health Forum, McMaster University, Hamilton, ON Canada
- Department of Global Health & Population, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA USA
| |
Collapse
|
6
|
Mane YD, Sarnikar YP, Surwase SM, Biradar DO, Gorepatil PB, Shinde VS, Khade BC. Design, synthesis, and antimicrobial activity of novel 5-substituted indole-2-carboxamide derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2696-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
|
7
|
Abstract
In this paper, we provide a state-of-the-art overview of the ethical challenges that arise in the context of antimicrobial resistance (AMR), which includes an introduction to the contributions to the symposium in this issue. We begin by discussing why AMR is a distinct ethical issue, and should not be viewed purely as a technical or medical problem. In the second section, we expand on some of these arguments and argue that AMR presents us with a broad range of ethical problems that must be addressed as part of a successful policy response to emerging drug resistance. In the third section, we discuss how some of these ethical challenges should be addressed, and we argue that this requires contributions from citizens, ethicists, policy makers, practitioners and industry. We conclude with an overview of steps that should be taken in moving forward and addressing the ethical problems of AMR.
Collapse
Affiliation(s)
- Jasper Littmann
- Institute of Experimental Medicine, Christian-Albrechts University Kiel
| |
Collapse
|
8
|
Hoffman SJ, Caleo GM, Daulaire N, Elbe S, Matsoso P, Mossialos E, Rizvi Z, Røttingen JA. Strategies for achieving global collective action on antimicrobial resistance. Bull World Health Organ 2015; 93:867-76. [PMID: 26668439 PMCID: PMC4669731 DOI: 10.2471/blt.15.153171] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Revised: 04/17/2015] [Accepted: 08/25/2015] [Indexed: 01/21/2023] Open
Abstract
Global governance and market failures mean that it is not possible to ensure access to antimicrobial medicines of sustainable effectiveness. Many people work to overcome these failures, but their institutions and initiatives are insufficiently coordinated, led and financed. Options for promoting global collective action on antimicrobial access and effectiveness include building institutions, crafting incentives and mobilizing interests. No single option is sufficient to tackle all the challenges associated with antimicrobial resistance. Promising institutional options include monitored milestones and an inter-agency task force. A global pooled fund could be used to craft incentives and a special representative nominated as an interest mobilizer. There are three policy components to the problem of antimicrobials – ensuring access, conservation and innovation. To address all three components, the right mix of options needs to be matched with an effective forum and may need to be supported by an international legal framework.
Collapse
Affiliation(s)
- Steven J Hoffman
- Global Strategy Lab, Faculty of Law, University of Ottawa, Fauteux Hall, 57 Louis Pasteur Street, Ottawa, Ontario, K1N 6N5, Canada
| | | | - Nils Daulaire
- International Division, Norwegian Institute of Public Health, Oslo, Norway
| | - Stefan Elbe
- Centre for Global Health Policy, University of Sussex, Brighton, England
| | | | - Elias Mossialos
- LSE Health, London School of Economics & Political Science, London, England
| | - Zain Rizvi
- Yale Law School, Yale University, New Haven, United States of America
| | - John-Arne Røttingen
- Environmental Health and Infectious Disease Control Division, Norwegian Institute of Public Health, Oslo, Norway
| |
Collapse
|
9
|
Konda S, Raparthi S, Bhaskar K, Munaganti RK, Guguloth V, Nagarapu L, Akkewar DM. Synthesis and antimicrobial activity of novel benzoxazine sulfonamide derivatives. Bioorg Med Chem Lett 2015; 25:1643-6. [PMID: 25754493 DOI: 10.1016/j.bmcl.2015.01.026] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 12/02/2014] [Accepted: 01/13/2015] [Indexed: 11/25/2022]
Abstract
A new series of benzoxazine-6-sulfonamide derivatives were synthesized in excellent yields and the resulting compounds were evaluated for their antimicrobial activities. All the synthesized compounds were assessed for their antibacterial and antifungal activities. Among them 1a, 1b, 1c, 1e, 1h, 2c, 2d, 2e, 2g, 2h, 2i, 2j, 2k and 2l showed low inhibitory concentration (MIC of 31.25 and 62.5 μg/mL) against Gram-positive bacteria, Gram-negative bacteria and fungi, which are comparable to the inhibitory effect of standard drugs.
Collapse
Affiliation(s)
- Saidulu Konda
- Organic Chemistry Division-II (CPC), CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, A.P., India
| | - Srujana Raparthi
- Organic Chemistry Division-II (CPC), CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, A.P., India
| | - K Bhaskar
- Organic Chemistry Division-II (CPC), CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, A.P., India
| | - Rajesh Kumar Munaganti
- Organic Chemistry Division-II (CPC), CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, A.P., India
| | - Vijayacharan Guguloth
- Organic Chemistry Division-II (CPC), CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, A.P., India
| | - Lingaiah Nagarapu
- Organic Chemistry Division-II (CPC), CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, A.P., India.
| | - Dattatray M Akkewar
- Organic Chemistry Division-II (CPC), CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, A.P., India.
| |
Collapse
|
10
|
Morhard R, Katz R. Legal and Regulatory Capacity to Support the Global Health Security Agenda. Biosecur Bioterror 2014; 12:254-62. [DOI: 10.1089/bsp.2014.0023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
11
|
Nunes CA, Freitas MP. aug-MIA-QSAR modeling of antimicrobial activities and design of multi-target anilide derivatives. J Microbiol Methods 2013; 94:217-20. [DOI: 10.1016/j.mimet.2013.06.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 06/24/2013] [Accepted: 06/26/2013] [Indexed: 11/26/2022]
|
12
|
Ghumare AK, Pawar BV, Bhagwat SS. Synthesis and Antibacterial Activity of Novel Amido-Amine-Based Cationic Gemini Surfactants. J SURFACTANTS DETERG 2012. [DOI: 10.1007/s11743-012-1406-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
13
|
Ilić D, Damljanović I, Stevanović D, Vukićević M, Blagojević P, Radulović N, Vukićević RD. Sulfur-Containing Ferrocenyl Alcohols and Oximes: New Promising Antistaphylococcal Agents. Chem Biodivers 2012; 9:2236-53. [DOI: 10.1002/cbdv.201200029] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Danijela Ilić
- Technical Faculty Kosovska Mitrovica, University of Priština, Kneza Miloša 7, RS-38220 Kosovska Mitrovica
| | | | | | | | | | | | | |
Collapse
|
14
|
Kathrotiya HG, Patel NA, Patel RG, Patel MP. An efficient synthesis of 3′-quinolinyl substituted imidazole-5-one derivatives catalyzed by zeolite and their antimicrobial activity. CHINESE CHEM LETT 2012. [DOI: 10.1016/j.cclet.2011.11.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
15
|
An efficient synthesis of highly functionalized novel chromeno[4,3-b]pyrroles and indolizino[6,7-b]indoles as potent antimicrobial and antioxidant agents. Bioorg Med Chem Lett 2011; 22:1375-9. [PMID: 22230048 DOI: 10.1016/j.bmcl.2011.12.061] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Revised: 11/26/2011] [Accepted: 12/12/2011] [Indexed: 11/22/2022]
Abstract
A facile and efficient synthesis of novel chromeno[4,3-b]pyrroles has been accomplished by intramolecular 1,3-dipolar cycloaddition which on subsequent Pictet-Spengler cyclisation in presence of p-toluenesulfonic acid yielded indolizino[6,7-b]indoles. The synthesized chromenopyrroles and indolizinoindoles were evaluated for their antimicrobial and antioxidant activities. Compounds 7b, 7e, 7a and 7d exhibited respectively, good antibacterial and antifungal activities against tested pathogens when compared to reference control.
Collapse
|
16
|
Özkay Y, Tunalı Y, Karaca H, Işıkdağ İ. Antimicrobial Activity of a New Combination System of Benzimidazole and Various Azoles. Arch Pharm (Weinheim) 2011; 344:264-71. [DOI: 10.1002/ardp.201000172] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2010] [Revised: 08/16/2010] [Accepted: 08/20/2010] [Indexed: 11/08/2022]
|
17
|
Umamatheswari S, Balaji B, Ramanathan M, Kabilan S. Synthesis, antimicrobial evaluation and QSAR studies of novel piperidin-4-yl-5-spiro-thiadiazoline derivatives. Bioorg Med Chem Lett 2010; 20:6909-14. [PMID: 21035335 DOI: 10.1016/j.bmcl.2010.10.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Revised: 09/30/2010] [Accepted: 10/01/2010] [Indexed: 10/19/2022]
Abstract
In an attempt to find a new class of antimicrobial agents, a series of new 1,3,4-thiadiazolines were synthesized from 2,6-diarylpiperidin-4-ones, via the corresponding 4'-phenylthiosemicarbazones. All the synthesized compounds (23-39) were virtually screened against bacterial (Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Salmonella typhi) and fungal strains (Candida albicans, Rhizopus sp, Aspergillus niger and Aspergillus flavus) by serial dilution method. QSAR study indicated that the increase in weakly polar component of solvent accessible surface area will favour antibacterial activity while increase in polarizability and decrease in ionisation potential and hydrogen bond donor will favour antifungal activity.
Collapse
|
18
|
Altundas A, Ayvaz S, Logoglu E. Synthesis and evaluation of a series of aminocyanopyridines as antimicrobial agents. Med Chem Res 2009. [DOI: 10.1007/s00044-009-9273-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
19
|
Minu M, Thangadurai A, Wakode SR, Agrawal SS, Narasimhan B. Synthesis, antimicrobial activity and QSAR studies of new 2,3-disubstituted-3,3a,4,5,6,7-hexahydro-2H-indazoles. Bioorg Med Chem Lett 2009; 19:2960-4. [DOI: 10.1016/j.bmcl.2009.04.052] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2008] [Revised: 03/28/2009] [Accepted: 04/15/2009] [Indexed: 10/20/2022]
|
20
|
Synthesis and evaluation of 4-amino-5-phenyl-4H-[1,2,4]-triazole-3-thiol derivatives as antimicrobial agents. Med Chem Res 2009. [DOI: 10.1007/s00044-009-9178-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
21
|
Saver RS. In tepid defense of population health: physicians and antibiotic resistance. AMERICAN JOURNAL OF LAW & MEDICINE 2008; 34:431-491. [PMID: 19216245 DOI: 10.1177/009885880803400401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Antibiotic resistance menaces the population as a dire public health threat and costly social problem. Recent proposals to combat antibiotic resistance focus to a large degree on supply side approaches. Suggestions include tinkering with patent rights so that pharmaceutical companies have greater incentives to discover novel antibiotics as well as to resist overselling their newer drugs already on market. This Article argues that a primarily supply side emphasis unfortunately detracts attention from physicians' important demand side influences. Physicians have a vital and unavoidably necessary role to play in ensuring socially optimal access to antibiotics. Dismayingly, physicians' management of the antibiotic supply has been poor and their defense of population health tepid at best. Acting as a prudent steward of the antibiotic supply often seems to be at odds with a physician's commonly understood fiduciary duties, ethical obligations, and professional norms, all of which traditionally emphasize the individual health paradigm as opposed to population health responsibilities. Meanwhile, physicians face limited incentives for antibiotic conservation from other sources, such as malpractice liability, regulatory standards, and reimbursement systems. While multifaceted efforts are needed to combat antibiotic resistance effectively, physician gatekeeping behavior should become a priority area of focus. This Article considers how health law and policy tools could favorably change the incentives physicians face for antibiotic conservation. A clear lesson from the managed care reform battles of the recent past is that interventions, to have the best chance of success, need to respect physician interest in clinical autonomy and individualized medicine even if, somewhat paradoxically, vigorously promoting population health perspectives. Also, physicians' legal and ethical obligations need to be reconceptualized in the antibiotic context in order to better support gatekeeping in defense of population health. The principal recommendation is for increased use of financial incentives to reward physicians for compliance with recommended guidelines on antibiotic prescribing. Although not a panacea, greater experimentation with financial incentives can provide a much needed jump-start to physician interest in antibiotic conservation and likely best address physicians' legitimate clinical autonomy concerns.
Collapse
Affiliation(s)
- Richard S Saver
- Health Law and Policy Institute, University of Houston Law Center, USA
| |
Collapse
|
22
|
Alper-Hayta S, Aki-Sener E, Tekiner-Gulbas B, Yildiz I, Temiz-Arpaci O, Yalcin I, Altanlar N. Synthesis, antimicrobial activity and QSARs of new benzoxazine-3-ones. Eur J Med Chem 2006; 41:1398-404. [PMID: 16996656 DOI: 10.1016/j.ejmech.2006.06.011] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2006] [Revised: 06/13/2006] [Accepted: 06/15/2006] [Indexed: 10/24/2022]
Abstract
New ethyl 3,4-dihydro-3-oxo-4,6,7-trisubstituted-2H-1,4-benzoxazine-2-acetate derivatives were synthesized and their structures were elucidated by IR, (1)H NMR and mass spectral data. Antimicrobial activity of the compounds was investigated by using the method of twofold serial dilution technique against different Gram-positive, Gram-negative bacteria and some Candida species in comparison to standard drugs. Microbiological results indicated that the synthesized compounds possessed a broad spectrum of activity having MIC values of 6.25-100 micro g/ml against the tested microorganisms. The QSAR analysis of a set of these compounds tested for growth inhibitory activity against Candida krusei was performed by using the computer-assisted multiple regression procedure. The activity contributions for substituent effects of these compounds were determined from the correlation equation for predictions of the lead optimization.
Collapse
Affiliation(s)
- S Alper-Hayta
- Ankara University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Degol Street, TR-06100 Tandogan, Ankara, Turkey
| | | | | | | | | | | | | |
Collapse
|
23
|
Abstract
During the past century the excitement of discovering antibiotics as a treatment of infectious diseases has given way to a sense of complacency and acceptance that when faced with antimicrobial resistance there will always be new and better antimicrobial agents to use. Now, with clear indications of a decline in pharmaceutical company interest in anti-infective research, at the same time when multi-drug resistant micro-organisms continue to be reported, it is very important to review the prudent use of the available agents to fight these micro-organisms. Injudicious use of antibiotics is a global problem with some countries more affected than others. There is no dearth of interest in this subject with scores of scholarly articles written about it. While over the counter access to antibiotics is mentioned as an important contributor towards injudicious antibiotic use in developing nations, as shown in a number of studies, there are many provider, practice and patient characteristics which drive antibiotic overuse in developed nations such as the United States. Recognizing that a thorough review of this subject goes far and beyond the page limitations of a review article we provide a summary of some of the salient aspects of this global problem with a focus towards readers practicing in developing nations.
Collapse
Affiliation(s)
- Aditya H Gaur
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee 38105-2794, USA.
| | | |
Collapse
|
24
|
Coast J, Smith RD. Solving the problem of antimicrobial resistance: is a global approach necessary? Drug Discov Today 2003; 8:1-2. [PMID: 12546975 DOI: 10.1016/s1359-6446(02)02542-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
25
|
Arpaci OT, Sener EA, Yalçin I, Altanlar N. Synthesis and microbiological activity of some novel N-[2-(p-substitutedphenyl)-5-benzoxazolyl]-cyclohexyl carboxamide, -cyclohexyl acetamide and -cyclohexyl propionamide derivatives. FARMACO (SOCIETA CHIMICA ITALIANA : 1989) 2002; 57:771-5. [PMID: 12385529 DOI: 10.1016/s0014-827x(02)01278-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis and microbiological activity of a new series of N-[2-(p-substitutedphenyl)-5-benzoxazolyl]-cyclohexyl carboxamide, -cyclohexyl acetamide and -cyclohexyl propionamide derivatives (4-11) is described. The in vitro microbiological activity of the compounds was determined against gram-positive, gram-negative bacteria and the yeast Candida albicans in comparison with standard drugs. Microbiological results indicated that the synthesized compounds possessed a broad spectrum of activity against the tested microorganisms.
Collapse
Affiliation(s)
- Ozlem Temiz Arpaci
- Ankara University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Turkey
| | | | | | | |
Collapse
|
26
|
Abstract
PURPOSE OF THE REVIEW The current worldwide pandemic of antibiotic resistance shows no signs of abating. It is clear that it is driven mainly by heavy and often inappropriate antibiotic use. Although control measures are widely practised, it is important that we assess their efficacy critically in order to concentrate expensive control efforts where they will be most effective. The past year has seen much activity in this area, with evidence-based assessments of the literature according to strict guidelines, as well as progress in basic science studies of mechanisms of resistance, and their causes and relations to pathogenicity and adaptability. RECENT FINDINGS The present review summarizes current developments in the causes of antibiotic resistance, the classification of antibiotic stewardship and control measures, the evidence base for their efficacy, current problems in hospital practice, the adaptability of bacteria, the content of antibiotic policies and anticipated activities. SUMMARY The conclusions from the published literature are that much of it that pertains to changing prescribing practices does not stand up to modern evidence-based analysis concepts. Nevertheless, we can learn from experience in changing other areas of medical practice. We must be pragmatic and must not expect to change the world, but rather take it step by step, recognizing barriers and measuring outcomes and quality indicators. Studies into the molecular basis of resistance confirm the superb genetic adaptability of micro-organisms. They will always be several steps ahead of us. Nevertheless, we are learning how to modify our prescribing habits to minimize resistance, not only by using antibiotics less frequently but also by altering dosing schedules in various ways.
Collapse
Affiliation(s)
- Ian M Gould
- Department of Medical Microbiology, Aberdeen Royal Infirmary, Aberdeen, Scotland, UK.
| |
Collapse
|
27
|
Keuleyan E, Gould I. Key issues in developing antibiotic policies: from an institutional level to Europe-wide. European Study Group on Antibiotic Policy (ESGAP), Subgroup III. Clin Microbiol Infect 2001. [DOI: 10.1046/j.1469-0691.2001.00080.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
28
|
|
29
|
Abstract
Emerging highly infectious viral agents, resurgent diseases, and mutating bacteria have created a significant and costly health care crisis. Antibiotics that were proven to be definitive weapons against infectious disease now are losing their effectiveness. This article describes the etiology and impact of this global problem and offers perioperative nurses and other health care professionals guidelines about basic infection control and infectious disease prevention to help combat this crisis.
Collapse
|
30
|
Abstract
This review article provides a general analysis of the legal challenges presented by antimicrobial use in food animal production and the emerging public health responses to such use. The article stresses the importance of national and international law to the public health strategies and the interdependence between national and international law. The article argues that antimicrobial use in food animal production poses a challenge to the development of global health jurisprudence.
Collapse
Affiliation(s)
- D P Fidler
- Indiana University School of Law, Bloomington, IN 47405-1001,USA
| |
Collapse
|
31
|
Carbon C, Bax RP. Regulating the use of antibiotics in the community. BMJ (CLINICAL RESEARCH ED.) 1998; 317:663-5. [PMID: 9728001 PMCID: PMC1113840 DOI: 10.1136/bmj.317.7159.663] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- C Carbon
- Hospital Bichat, Claude Bernard, 75877 Paris Cedex 18, France.
| | | |
Collapse
|