1
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Elik A, Demirkol Y, Ul Haq H, Boczkaj G, Sanaullah, Altunay N. Development of an orbital shaker-assisted fatty acid-based switchable solvent microextraction procedure for rapid and green extraction of amoxicillin from complex matrices: Central composite design. Food Chem 2024; 454:139785. [PMID: 38823199 DOI: 10.1016/j.foodchem.2024.139785] [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: 12/10/2023] [Revised: 05/01/2024] [Accepted: 05/20/2024] [Indexed: 06/03/2024]
Abstract
In this study, a cheap, fast and simple orbital shaker-assisted fatty acid-based switchable solvent microextraction (OS-FASS-ME) procedure was developed for the extraction of amoxicillin (AMOX) in dairy products, pharmaceutical samples and wastewater prior to its spectrophotometric analysis. Fatty acid-based switchable solvents were investigated for extracting AMOX. The key factors of the OS-FASS-ME procedure were optimized using a central composite design. The linearity of OS-FASS-ME procedure was in the range 5-600 ng mL-1 with a correlation coefficient of 0.991. In five replicate experiments for 20 ng mL-1 of AMOX solution, the recovery and relative standard deviation were 95.8% and 2.2%, respectively. Limits of detection and quantification were found 1.5 ng mL-1 and 5 ng mL-1, respectively. The accuracy, precision, robustness and selectivity of the OS-FASS-ME procedure were investigated in detail under optimum conditions. The OS-FASS-ME procedure was applied to milk, cheese, wastewater, syrups and tablets. A comparison of the results obtained from the reference method and the OS-FASS-ME method showed that the OS-FASS-ME procedure can be successfully applied to complex matrices.
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Affiliation(s)
- Adil Elik
- Sivas Cumhuriyet University, Faculty of Science, Department of Chemistry, Sivas, Turkey
| | - Yağmur Demirkol
- Sivas Cumhuriyet University, Faculty of Science, Department of Biochemistry, Sivas, Turkey
| | - Hameed Ul Haq
- Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Department of Sanitary Engineering, G. Narutowicza St. 11/12, 80-233 Gdansk, Poland
| | - Grzegorz Boczkaj
- Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Department of Sanitary Engineering, G. Narutowicza St. 11/12, 80-233 Gdansk, Poland
| | - Sanaullah
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100 Gliwice, Poland
| | - Nail Altunay
- Sivas Cumhuriyet University, Faculty of Science, Department of Chemistry, Sivas, Turkey.
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2
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Ma B, Lin X, Zhu T, Zheng X, Zhu J. Donor-acceptor type COFs with multiple fluorine groups as electron storage units to promote antimicrobial performance. Colloids Surf B Biointerfaces 2024; 242:114101. [PMID: 39038411 DOI: 10.1016/j.colsurfb.2024.114101] [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: 06/21/2024] [Revised: 07/14/2024] [Accepted: 07/17/2024] [Indexed: 07/24/2024]
Abstract
The novel donor-acceptor (D-A) type covalent organic frameworks TATF-COF and TATP-COF, with multiple fluorine groups as electron storage units, were successfully constructed to achieve efficient charge transfer and photocatalytic activity for antibacterial photocatalytic therapy. Fluorine, the most electronegative element, was utilized as an electron-withdrawing substituent for the acceptor, which could unite the donor unit together and efficiently improve the charge transfer from the donor to acceptor. The unique D-A structures of TATF-COF and TATP-COF ensure that they have narrow band gaps, strong photocurrent responses, long fluorescence lifetimes, and good capacity to generate reactive oxygen species (ROS) to realize good antibacterial activity. Meanwhile, the inclusion of multiple hydrophilic fluorine groups means that TATF-COF and TATP-COF are highly water dispersible, which is also beneficial in terms of promoting the generation of adequate quantities of ROS. Hence, in view of their excellent photoelectric properties and good water dispersibility, further investigations were performed, and excellent antibacterial activities in vitro against both gram-negative and gram-positive bacteria were demonstrated for TATF-COF and TATP-COF. In addition, we also showed that they can function as effective antibacterial dental materials.
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Affiliation(s)
- Baiwei Ma
- School of Material and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou 450007, PR China.
| | - Xuanyu Lin
- School of Material and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou 450007, PR China
| | - Tiaotiao Zhu
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, PR China
| | - Xiaofei Zheng
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, PR China.
| | - Juanfang Zhu
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, PR China.
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3
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Li H, Wang D, Liu W, Ma Z, Wang D, Li Y, Huan W, Zhang Y. A LMOF/MIP paper-based chip and analysis of tetracycline in foodstuff with sample-to-answer performance. Talanta 2024; 281:126879. [PMID: 39293247 DOI: 10.1016/j.talanta.2024.126879] [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: 03/11/2024] [Revised: 07/22/2024] [Accepted: 09/11/2024] [Indexed: 09/20/2024]
Abstract
The development of high-performance specific sensors is promising for the rapid detection of harmful residues in animal-derived foods. Recently, luminescent metal-organic framework/molecularly imprinted polymer (LMOF/MIP) materials have been developed as ideal candidates for the analysis of harmful residues. Here, we reported a simple fabrication protocol of paper-based chip through in-situ growth of LMOF on a negatively charged modified filter paper, a paper-based molecularly imprinting layer (FP@BA-Eu@MIP) was thereafter successfully prepared via the boronate affinity-based controllable oriented surface imprinting strategy. The paper-based chips obtained were used to construct a rapid test strip of tetracycline (TC). After addition of TC, significant fluorescence changes on the surface of the FP@BA-Eu@MIP paper-based chip could be observed from blue to red via inner filter effect and photo-induced electron transfer under the excitation of 360 nm. The adsorption kinetics was explored in detail. The presented strip exhibited satisfied selectiveness and sensitivity with a limit of detection of 8.47 μg L-1 for TC. It was confirmed that LMOF/MIP as a biomimetic recognition module can play a crucial role in enrichment and fluorescence response. This study provided a real application case for an in-situ fabricated fluorescence paper-based chip in rapidly detecting harmful residues.
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Affiliation(s)
- Han Li
- College of Food and Health, Zhejiang A&F University, Hangzhou, 311300, China
| | - Donghui Wang
- College of Food and Health, Zhejiang A&F University, Hangzhou, 311300, China
| | - Wei Liu
- College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University, Hangzhou, 311300, China
| | - Zhan Ma
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, 311300, China
| | - Dingnan Wang
- Institute of Zhejiang Aquatic Product Technology, Hangzhou, 310000, China
| | - Yang Li
- College of Food and Health, Zhejiang A&F University, Hangzhou, 311300, China
| | - Weiwei Huan
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, 311300, China.
| | - Yiming Zhang
- College of Food and Health, Zhejiang A&F University, Hangzhou, 311300, China.
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4
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Mashal S, Siddiqua A, Ullah N, Baloch R, Khan M, Hasnain SZU, Imran Aziz M, Huseynov E, Selakovic D, Rosic G, Makhkamov T, Yuldashev A, Islamov S, Abdullayeva N, Khujanazarov U, Amin A. Bioactive plant waste components targeting oral bacterial pathogens as a promising strategy for biofilm eradication. Front Chem 2024; 12:1406869. [PMID: 39185371 PMCID: PMC11341444 DOI: 10.3389/fchem.2024.1406869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 07/18/2024] [Indexed: 08/27/2024] Open
Abstract
The significance of this study lies in its exploration of bioactive plant extracts as a promising avenue for combating oral bacterial pathogens, offering a novel strategy for biofilm eradication that could potentially revolutionize oral health treatments. Oral bacterial infections are common in diabetic patients; however, due to the development of resistance, treatment options are limited. Considering the excellent antimicrobial properties of phenolic compounds, we investigated them against isolated oral pathogens using in silico and in vitro models. We performed antibiogram studies and minimum inhibitory concentration (MIC), antibiofilm, and antiquorum sensing activities covering phenolic compounds. Bacterial strains were isolated from female diabetic patients and identified by using 16S rRNA sequencing as Pseudomonas aeruginosa, Bacillus chungangensis, Bacillus paramycoides, and Paenibacillus dendritiformis. Antibiogram studies confirmed that all strains were resistant to most tested antibiotics except imipenem and ciprofloxacin. Molecular docking analysis revealed the significant interaction of rutin, quercetin, gallic acid, and catechin with transcription regulator genes 1RO5, 4B2O, and 5OE3. All tested molecules followed drug-likeness rules except rutin. The MIC values of the tested compounds varied from 0.0625 to 0.5 mg/mL against clinical isolates. Significant antibiofilm activity was recorded in the case of catechin (73.5% ± 1.6% inhibition against B. paramycoides), cinnamic acid (80.9% ± 1.1% inhibition against P. aeruginosa), and vanillic acid and quercetin (65.5% ± 1.7% and 87.4% ± 1.4% inhibition, respectively, against B. chungangensis) at 0.25-0.125 mg/mL. None of the phenolic compounds presented antiquorum sensing activity. It was, therefore, concluded that polyphenolic compounds may have the potential to be used against oral bacterial biofilms, and further detailed mechanistic investigations should be performed.
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Affiliation(s)
- Saima Mashal
- Gomal Center of Biochemistry and Biotechnology (GCBB), Gomal University, Dera Ismail Khan, Khyber Pakhtunkhwa, Pakistan
- Natural Products Research Lab, Department of Pharmacognosy, Faculty of Pharmacy, Gomal University, Dera Ismail Khan, Khyber Pakhtunkhwa, Pakistan
| | - Aisha Siddiqua
- Gomal Center of Biochemistry and Biotechnology (GCBB), Gomal University, Dera Ismail Khan, Khyber Pakhtunkhwa, Pakistan
| | - Niamat Ullah
- Natural Products Research Lab, Department of Pharmacognosy, Faculty of Pharmacy, Gomal University, Dera Ismail Khan, Khyber Pakhtunkhwa, Pakistan
| | - Rabia Baloch
- Allama Iqbal Teaching Hospital, Dera Ghazi Khan, Pakistan
| | - Momin Khan
- Department of Microbiology, Institute of Pathology and Diagnostic Medicine, Khyber Medical University, Peshawar, Khyber Pakhtunkhwa, Pakistan
| | - Syed Zia Ul Hasnain
- Department of Pharmacognosy, Bahauddin Zakariya University, Multan, Pakistan
| | - Muhammad Imran Aziz
- Natural Products Research Lab, Department of Pharmacognosy, Faculty of Pharmacy, Gomal University, Dera Ismail Khan, Khyber Pakhtunkhwa, Pakistan
| | | | - Dragica Selakovic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Gvozden Rosic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Trobjon Makhkamov
- Department of Forestry and Land Scape Design, Tashkent State Agrarian University, Tashkent, Uzbekistan
| | - Akramjon Yuldashev
- Department of Ecology and Botany Andijan State University, Andijan, Uzbekistan
| | - Sokhib Islamov
- Department of Technology of Storage and Processing of Agricultural Products, Tashkent State Agrarian University, Tashkent, Uzbekistan
| | - Nilufar Abdullayeva
- Department of Biology Teaching Methodology, Jizzakh State Pedagogical University, Jizzakh, Uzbekistan
| | - Uktam Khujanazarov
- Department of Botany and Ecology, Tashkent State Pedagogical University, Tashkent, Uzbekistan
| | - Adnan Amin
- Natural Products Research Lab, Department of Pharmacognosy, Faculty of Pharmacy, Gomal University, Dera Ismail Khan, Khyber Pakhtunkhwa, Pakistan
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5
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Gaspari S, Akkermans S, Akritidou T, Whelan R, Devine F, Van Impe JFM. Interference of gastrointestinal barriers with antibiotic susceptibility of foodborne pathogens: an in vitro case study of ciprofloxacin and tetracycline against Salmonella enterica and Listeria monocytogenes. Food Res Int 2024; 188:114491. [PMID: 38823842 DOI: 10.1016/j.foodres.2024.114491] [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: 02/29/2024] [Revised: 04/30/2024] [Accepted: 05/07/2024] [Indexed: 06/03/2024]
Abstract
Minimum inhibitory concentrations (MIC) assays are often questioned for their representativeness. Especially when foodborne pathogens are tested, it is of crucial importance to also consider parameters of the human digestive system. Hence, the current study aimed to assess the inhibitory capacity of two antibiotics, ciprofloxacin and tetracycline, against Salmonella enterica and Listeria monocytogenes, under representative environmental conditions. More specifically, aspects of the harsh environment of the human gastrointestinal tract (GIT) were gradually added to the experimental conditions starting from simple aerobic lab conditions into an in vitro simulation of the GIT. In this way, the effects of parameters including the anoxic environment, physicochemical conditions of the GIT (low gastric pH, digestive enzymes, bile acids) and the gut microbiota were evaluated. The latter was simulated by including a representative consortium of selected gut bacteria species. In this study, the MIC of the two antibiotics against the relevant foodborne pathogens were established, under the previously mentioned environmental conditions. The results of S. enterica highlighted the importance of the anaerobic environment when conducting such studies, since the pathogen thrived under such conditions. Inclusion of physicochemical barriers led to exactly opposite results for S. enterica and L. monocytogenes since the former became more susceptible to ciprofloxacin while the latter showed lower susceptibility towards tetracycline. Finally, the inclusion of gut bacteria had a bactericidal effect against L. monocytogenes even in the absence of antibiotics, while gut bacteria protected S. enterica from the effect of ciprofloxacin.
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Affiliation(s)
- Sotiria Gaspari
- BioTeC(+), Chemical and Biochemical Process Technology and Control, KU Leuven, Gent, Belgium
| | - Simen Akkermans
- BioTeC(+), Chemical and Biochemical Process Technology and Control, KU Leuven, Gent, Belgium
| | - Theodora Akritidou
- BioTeC(+), Chemical and Biochemical Process Technology and Control, KU Leuven, Gent, Belgium
| | - Rory Whelan
- BioTeC(+), Chemical and Biochemical Process Technology and Control, KU Leuven, Gent, Belgium; School of Biological, Health and Sport Sciences, Technological University Dublin, Ireland
| | - Faye Devine
- BioTeC(+), Chemical and Biochemical Process Technology and Control, KU Leuven, Gent, Belgium; School of Biological, Health and Sport Sciences, Technological University Dublin, Ireland
| | - Jan F M Van Impe
- BioTeC(+), Chemical and Biochemical Process Technology and Control, KU Leuven, Gent, Belgium.
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6
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Diamant M, Obolski U. The straight and narrow: A game theory model of broad- and narrow-spectrum empiric antibiotic therapy. Math Biosci 2024; 372:109203. [PMID: 38670222 DOI: 10.1016/j.mbs.2024.109203] [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: 12/06/2023] [Revised: 03/17/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024]
Abstract
Physicians prescribe empiric antibiotic treatment when definitive knowledge of the pathogen causing an infection is lacking. The options of empiric treatment can be largely divided into broad- and narrow-spectrum antibiotics. Prescribing a broad-spectrum antibiotic increases the chances of covering the causative pathogen, and hence benefits the current patient's recovery. However, prescription of broad-spectrum antibiotics also accelerates the expansion of antibiotic resistance, potentially harming future patients. We analyse the social dilemma using game theory. In our game model, physicians choose between prescribing broad and narrow-spectrum antibiotics to their patients. Their decisions rely on the probability of an infection by a resistant pathogen before definitive laboratory results are available. We prove that whenever the equilibrium strategies differ from the socially optimal policy, the deviation is always towards a more excessive use of the broad-spectrum antibiotic. We further show that if prescribing broad-spectrum antibiotics only to patients with a high probability of resistant infection is the socially optimal policy, then decentralization of the decision making may make this policy individually irrational, and thus sabotage its implementation. We discuss the importance of improving the probabilistic information available to the physician and promoting centralized decision making.
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Affiliation(s)
- Maya Diamant
- Coller School of Management, Tel Aviv University, Tel Aviv, Israel; School of Public Health, Tel Aviv University, Tel Aviv, Israel; Porter School of the Environment and Earth Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel.
| | - Uri Obolski
- School of Public Health, Tel Aviv University, Tel Aviv, Israel; Porter School of the Environment and Earth Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel.
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7
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Taha AM, Elmasry MS, Hassan WS, Sayed RA. Spider chart, greenness and whiteness assessment of experimentally designed multivariate models for simultaneous determination of three drugs used as a combinatory antibiotic regimen in critical care units: Comparative study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 313:124115. [PMID: 38484641 DOI: 10.1016/j.saa.2024.124115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/24/2024] [Accepted: 03/02/2024] [Indexed: 04/02/2024]
Abstract
In this study, five earth-friendly spectrophotometric methods using multivariate techniques were developed to analyze levofloxacin, linezolid, and meropenem, which are utilized in critical care units as combination therapies. These techniques were used to determine the mentioned medications in laboratory-prepared mixtures, pharmaceutical products and spiked human plasma that had not been separated before handling. These methods were named classical least squares (CLS), principal component regression (PCR), partial least squares (PLS), genetic algorithm partial least squares (GA-PLS), and artificial neural network (ANN). The methods used a five-level, three-factor experimental design to make different concentrations of the antibiotics mentioned (based on how much of them are found in the plasma of critical care patients and their linearity ranges). The approaches used for levofloxacin, linezolid, and meropenem were in the ranges of 3-15, 8-20, and 5-25 µg/mL, respectively. Several analytical tools were used to test the proposed methods' performance. These included the root mean square error of prediction, the root mean square error of cross-validation, percentage recoveries, standard deviations, and correlation coefficients. The outcome was highly satisfactory. The study found that the root mean square errors of prediction for levofloxacin were 0.090, 0.079, 0.065, 0.027, and 0.001 for the CLS, PCR, PLS, GA-PLS, and ANN models, respectively. The corresponding values for linezolid were 0.127, 0.122, 0.108, 0.05, and 0.114, respectively. For meropenem, the values were 0.230, 0.222, 0.179, 0.097, and 0.099 for the same models, respectively. These results indicate that the developed models were highly accurate and precise. This study compared the efficiency of artificial neural networks and classical chemometric models in enhancing spectral data selectivity for quickly identifying three antimicrobials. The results from these five models were subjected to statistical analysis and compared with each other and with the previously published ones. Finally, the whiteness of the methods was assessed by the recently published white analytical chemistry (WAC) RGB 12, and the greenness of the proposed methods was assessed using AGREE, GAPI, NEMI, Raynie and Driver, and eco-scale, which showed that the suggested approaches had the least negative environmental impact. Furthermore, to demonstrate solvent sustainability, a greenness index using a spider chart methodology was employed.
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Affiliation(s)
- Asmaa M Taha
- Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt.
| | - Manal S Elmasry
- Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Wafaa S Hassan
- Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Rania A Sayed
- Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
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8
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Wang B, Wang L, Yang Q, Zhang Y, Qinglai T, Yang X, Xiao Z, Lei L, Li S. Pulmonary inhalation for disease treatment: Basic research and clinical translations. Mater Today Bio 2024; 25:100966. [PMID: 38318475 PMCID: PMC10840005 DOI: 10.1016/j.mtbio.2024.100966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 01/16/2024] [Accepted: 01/19/2024] [Indexed: 02/07/2024] Open
Abstract
Pulmonary drug delivery has the advantages of being rapid, efficient, and well-targeted, with few systemic side effects. In addition, it is non-invasive and has good patient compliance, making it a highly promising drug delivery mode. However, there have been limited studies on drug delivery via pulmonary inhalation compared with oral and intravenous modes. This paper summarizes the basic research and clinical translation of pulmonary inhalation drug delivery for the treatment of diseases and provides insights into the latest advances in pulmonary drug delivery. The paper discusses the processing methods for pulmonary drug delivery, drug carriers (with a focus on various types of nanoparticles), delivery devices, and applications in pulmonary diseases and treatment of systemic diseases (e.g., COVID-19, inhaled vaccines, diagnosis of the diseases, and diabetes mellitus) with an updated summary of recent research advances. Furthermore, this paper describes the applications and recent progress in pulmonary drug delivery for lung diseases and expands the use of pulmonary drugs for other systemic diseases.
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Affiliation(s)
- Bin Wang
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Lin Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Binzhou People's Hospital, Binzhou, 256610, Shandong, China
| | - Qian Yang
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Yuming Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Tang Qinglai
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Xinming Yang
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Zian Xiao
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha, 410011, China
| | - Lanjie Lei
- Institute of Translational Medicine, Zhejiang Shuren University, Hangzhou, 310015, Zhejiang, China
| | - Shisheng Li
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital, Central South University, Changsha, 410011, China
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Aslam M, Rahman J, Iqbal A, Mujtaba S, Ashok AK, Kaouche FC, Hayat MM, Nisa MU, Ashraf M. Antiurease Activity of Antibiotics: In Vitro, In Silico, Structure Activity Relationship, and MD Simulations of Cephalosporins and Fluoroquinolones. ACS OMEGA 2024; 9:14005-14016. [PMID: 38559955 PMCID: PMC10975586 DOI: 10.1021/acsomega.3c09355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/22/2024] [Accepted: 03/01/2024] [Indexed: 04/04/2024]
Abstract
Helicobacter pylori infection is widespread in 50% of the world's population and is associated with gastric ulcers and related disorders that ultimately culminate in gastric cancer. Levofloxacin-based, or clarithromycin-based, triple therapy is frequently used to inhibit the bacterial urease enzyme for the eradication of H. pylori. A comprehensive investigation based on the urease inhibitory profiles of antibiotics and their computational implications is lacking in the scientific literature. The present study was aimed specifically to determine the antiurease activities within the realms of cephalosporins and fluoroquinolones by in vitro methods supported with in silico investigations. The results demonstrate the jack bean urease inhibitory activity of cephalosporins, wherein cefadroxil, cefpodoxime, cefotaxime, and cefaclor displayed inhibitions (IC50 21.35 ± 0.64 to 62.86 ± 0.78 μM) compared with the standard thiourea (IC50 21.25 ± 0.15 μM). Among fluoroquinolones, levofloxacin, ofloxacin, and gemifloxacin (IC50 7.24 ± 0.29 to 16.53 ± 0.85 μM) unveiled remarkable inhibitory profiles. Levofloxacin and ofloxacin exhibited competitive inhibition against the said enzyme. Ciprofloxacin and moxifloxacin displayed weak urease inhibitions. During molecular docking studies, Asp362, Gly279, Arg338, Asn168, Asp223, Gln364, and Met366 were involved in hydrogen bonding in fluoroquinolones, and hydrogen bonding was established with Arg338, His248, Asn168 residues, and metal Ni601 and Ni602 of the enzyme. MD simulations and MMPBSA results demonstrated the existence of significant protein-ligand binding. Overall, these results warrant further investigations into the significance of these active molecules in relation to their inhibitory potential against the targeted urease enzyme.
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Affiliation(s)
- Misbah Aslam
- Institute
of Chemistry, B.J. Campus, The Islamia University
of Bahawalpur, Bahawalpur 36000, Pakistan
| | - Jameel Rahman
- Institute
of Chemistry, B.J. Campus, The Islamia University
of Bahawalpur, Bahawalpur 36000, Pakistan
| | - Ambar Iqbal
- Institute
of Chemistry, B.J. Campus, The Islamia University
of Bahawalpur, Bahawalpur 36000, Pakistan
- Department
of Biochemistry and Molecular Biology, Institute of Biochemistry,
Biotechnology, Bioinformatics (IBBB), B.J. Campus, The Islamia University of Bahawalpur, Bahawalpur 36000, Pakistan
| | - Sara Mujtaba
- Institute
of Chemistry, B.J. Campus, The Islamia University
of Bahawalpur, Bahawalpur 36000, Pakistan
| | - Avinash Karkada Ashok
- Department
of Biotechnology, Siddaganga Institute of
Technology, Tumakuru 572103, Karnataka, India
| | - Farah Chafika Kaouche
- Department
of Chemistry, Faculty of Sciences of Mater, Ibn Khaldoun University, BP 78 zaaoura, 14000 Tiaret, Algeria
| | - Muhammad Munawar Hayat
- P
& SH Department, Punjab Drug Testing
Laboratory, 1-Bird Wood
Road, Lahore 631000, Pakistan
| | - Mouqadus-Un Nisa
- Multan Drug
Testing Laboratory, near Multan Institute
of Kidney Disease, Muzaffargarh
Road, Multan 261000, Pakistan
| | - Muhammad Ashraf
- Institute
of Chemistry, B.J. Campus, The Islamia University
of Bahawalpur, Bahawalpur 36000, Pakistan
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10
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Lederer AK, Michel MC. Natural Products in the Treatment of Lower Urinary Tract Dysfunction and Infection. Handb Exp Pharmacol 2024. [PMID: 38411727 DOI: 10.1007/164_2024_708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
The popularity of natural products for the treatment of lower urinary tract symptoms (LUTS) differs considerably between countries. Here we discuss the clinical evidence for efficacy in two indications, male LUTS suggestive of benign prostatic hyperplasia and urinary tract infections, and the mechanistic evidence from experimental studies. Most evidence for male LUTS is based on extracts from saw palmetto berries, stinging nettle roots, and pumpkin seeds, whereas most evidence for urinary tract infection is available for European golden rod and combined preparations although this field appears more fragmented with regard to extract sources. Based on differences in sample collection and extraction, extracts from the same plants are likely to exhibit at least quantitative differences in potential active ingredients, which makes extrapolation of findings with one extract to those of others potentially difficult. While only limited information is available for most individual extracts, some extracts have been compared to placebo and/or active controls in adequately powered trials.
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Affiliation(s)
- Ann-Kathrin Lederer
- Department of General, Visceral and Transplant Surgery, University Medical Center, Johannes Gutenberg University, Mainz, Germany
- Center for Complementary Medicine, Department of Medicine II, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Freiburg, Germany
| | - Martin C Michel
- Department of Pharmacology, University Medical Center, Johannes Gutenberg University, Mainz, Germany.
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11
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Fan L, Su W, Zhang X, Yang S, Zhu Y, Liu X. Self-assembly of sophorolipid and eugenol into stable nanoemulsions for synergetic antibacterial properties through alerting membrane integrity. Colloids Surf B Biointerfaces 2024; 234:113749. [PMID: 38241893 DOI: 10.1016/j.colsurfb.2024.113749] [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: 11/15/2023] [Revised: 12/27/2023] [Accepted: 01/03/2024] [Indexed: 01/21/2024]
Abstract
Exploring the natural, safe, and effective antimicrobial is one of the preferable ways to control foodborne bacteria. In this work, novel oil-in-water nanoemulsions were formulated with sophorolipids and eugenol without any co-surfactant using a self-assembling strategy. These nanoemulsions showed high stability with sizes less than 200 nm when exposure to low concentrations of salt ions, various pH values (5.0, 7.0, 10.0), storage temperature and time. The synergistic antibacterial effects against both Gram-negative Escherichia coli and Gram-positive Bacillus cereus were determined with a minimum inhibitory concentration (MIC) value of 0.5 mg/mL and 0.125 mg/mL, respectively. Further microscopy (SEM, TEM, LCSM) examination and ATP/Na+-K+-ATPase assay results showed that the morphological changes, intensive cell membrane permeability, leakage of ATP, and decreased Na+-K+-ATPase contributed to the antibacterial effects. Moreover, the bonding mechanism between nanoemulsions and cell membranes were further evaluated by FTIR and ITC using a DPPC vesicle model, which demonstrated that the nanoemulsions adsorbed on the surface of bilayer, interacted with the hydrophobic chains of DPPC membrane mainly through the hydrophobic interaction, and altered the structural integrity of the lipid bilayer. These results not only provide a facile green strategy for fabricating stable nanoemulsions, but also highlight a new perspective for stabilizing essential oils for their widely application in food industry.
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Affiliation(s)
- Linlin Fan
- Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; Key Laboratory of Cold Chain Logistics Technology for Agro-product, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China
| | - Wei Su
- Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Xiaoqian Zhang
- Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Suqun Yang
- Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Yongsheng Zhu
- Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; Key Laboratory of Cold Chain Logistics Technology for Agro-product, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China
| | - Xiaoli Liu
- Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; Key Laboratory of Cold Chain Logistics Technology for Agro-product, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China.
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12
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Dinev T, Velichkova K, Stoyanova A, Sirakov I. Microbial Pathogens in Aquaponics Potentially Hazardous for Human Health. Microorganisms 2023; 11:2824. [PMID: 38137969 PMCID: PMC10745371 DOI: 10.3390/microorganisms11122824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/17/2023] [Accepted: 11/18/2023] [Indexed: 12/24/2023] Open
Abstract
The union of aquaculture and hydroponics is named aquaponics-a system where microorganisms, fish and plants coexist in a water environment. Bacteria are essential in processes which are fundamental for the functioning and equilibrium of aquaponic systems. Such processes are nitrification, extraction of various macro- and micronutrients from the feed leftovers and feces, etc. However, in aquaponics there are not only beneficial, but also potentially hazardous microorganisms of fish, human, and plant origin. It is important to establish the presence of human pathogens, their way of entering the aforementioned systems, and their control in order to assess the risk to human health when consuming plants and fish grown in aquaponics. Literature analysis shows that aquaponic bacteria and yeasts are mainly pathogenic to fish and humans but rarely to plants, while most of the molds are pathogenic to humans, plants, and fish. Since the various human pathogenic bacteria and fungi found in aquaponics enter the water when proper hygiene practices are not applied and followed, if these requirements are met, aquaponic systems are a good choice for growing healthy fish and plants safe for human consumption. However, many of the aquaponic pathogens are listed in the WHO list of drug-resistant bacteria for which new antibiotics are urgently needed, making disease control by antibiotics a real challenge. Because pathogen control by conventional physical methods, chemical methods, and antibiotic treatment is potentially harmful to humans, fish, plants, and beneficial microorganisms, a biological control with antagonistic microorganisms, phytotherapy, bacteriophage therapy, and nanomedicine are potential alternatives to these methods.
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Affiliation(s)
- Toncho Dinev
- Department of Biological Sciences, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria;
| | - Katya Velichkova
- Department of Biological Sciences, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria;
| | - Antoniya Stoyanova
- Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria;
| | - Ivaylo Sirakov
- Department of Animal Husbandry–Non-Ruminant Animals and Special Branches, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria;
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13
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Kayes MI, Zarei M, Feng F, Leu PW. Black silicon spacing effect on bactericidal efficacy against gram-positive bacteria. NANOTECHNOLOGY 2023; 35:025102. [PMID: 37769640 DOI: 10.1088/1361-6528/acfe16] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 09/28/2023] [Indexed: 10/03/2023]
Abstract
The morphology of regular and uniform arrays of black silicon structures was evaluated for bactericidal efficacy against gram-positive, non-motileStaphylococcusepidermidis(S.epidermidis). In this study, uniform and regular arrays of black silicon structures were fabricated using nanosphere lithography and deep reactive ion etching. The effects of nanomorphology on bacterial killing were systematically evaluated using silicon nanostructures with pitches ranging from 300 to 1400 nm pitch on spherical cocci approximately 500 to 1000 nm in diameter. Our results show that nanostructure morphology factors such as height and roughness do not directly determine bactericidal efficacy. Instead, the spacing between nanostructures plays a crucial role in determining how bacteria are stretched and lysed. Nanostructures with smaller pitches are more effective at killing bacteria, and an 82 ± 3% enhancement in bactericidal efficacy was observed for 300 nm pitch nanoneedles surface compared to the flat control substrates.
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Affiliation(s)
- Md Imrul Kayes
- Department of Industrial Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA, United States of America
| | - Mehdi Zarei
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA, United States of America
| | - Fanbo Feng
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA, United States of America
| | - Paul W Leu
- Department of Industrial Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA, United States of America
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA, United States of America
- Department of Chemical Engineering, University of Pittsburgh, 3700 O'Hara, Pittsburgh, PA, United States of America
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14
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Sircar S, Rayan M, Okonoboh P. TMP-SMX induced type 4 hypersensitivity with multi-organ involvement. IDCases 2023; 34:e01917. [PMID: 37954169 PMCID: PMC10638065 DOI: 10.1016/j.idcr.2023.e01917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/22/2023] [Accepted: 10/25/2023] [Indexed: 11/14/2023] Open
Abstract
Trimethoprim-sulfamethoxazole (TMP-SMX), also referred to as co-trimazole, is a common antibiotic used to treat a wide range of infections ranging from simple skin and soft tissue infections to opportunistic infections such as Pneumocystis jirovecii. Generally, this medication is well-tolerated, but severe adverse reactions, such as myelosuppression and hepatitis, can occur, albeit rarely. In this case report, we describe a patient who presented to the hospital with symptoms of rash, elevated liver enzymes, thrombocytopenia, and acute kidney injury 2 weeks after completing a course of TMP-SMX for a skin infection. We highlight the difficulties in diagnosing adverse events associated with this drug due to the variability in its presentation and the unpredictable onset of symptoms. By excluding common differential diagnoses including thrombotic thrombocytopenic purpura (TTP) and glucose-6-phosphate- dehydrogenase (G6PD) deficiency, we concluded that the patient was suffering from TMP-SMX-induced multi-organ dysfunction and treated him supportively. Through this case report, we aim to elucidate the importance of early recognition and treatment of the adverse effects of TMP-SMX.
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Affiliation(s)
- Samantha Sircar
- University of Central Florida College of Medicine, Graduate Medical Education / HCA Florida North Florida Hospital, Internal Medicine Residency Program, 6500 W Newberry Rd, Gainesville, FL 32605, United States
| | - Melanie Rayan
- University of Central Florida College of Medicine, Graduate Medical Education / HCA Florida North Florida Hospital, Internal Medicine Residency Program, 6500 W Newberry Rd, Gainesville, FL 32605, United States
| | - Peters Okonoboh
- University of Central Florida College of Medicine, Graduate Medical Education / HCA Florida North Florida Hospital, Internal Medicine Residency Program, 6500 W Newberry Rd, Gainesville, FL 32605, United States
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15
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Kwon MK, Jung KH, Choi S, Kim H, Woo CY, Lee M, Ji JG, Son HJ. Antibiotics use patterns in end-of-life cancer patients and medical staff's perception of antimicrobial stewardship programs. Korean J Intern Med 2023; 38:758-768. [PMID: 37586810 PMCID: PMC10493437 DOI: 10.3904/kjim.2023.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/19/2023] [Accepted: 06/05/2023] [Indexed: 08/18/2023] Open
Abstract
BACKGROUND/AIMS While most cancer patients with end-of-life (EOL) care receive antibiotic treatments, antibiotic use should be decided appropriately considering the benefits, side effects, resistance, and cost effects. Antimicrobial stewardship programs (ASP) are important for patients with EOL care, but there is limited study analyzing actual antibiotic use in EOL care and the perceptions of Korean medical staff. METHODS Electronic medical records of 149 deceased cancer patients hospitalized in the medical hospitalist units at Asan Medical Center in Seoul from May 2019 to September 2021 were reviewed. Basic information, antibiotic use, duration, and changes were investigated. We surveyed medical staff's perceptions of antibiotics in cancer patients with EOL. RESULTS Of the 149 cancer patients with EOL care, 146 (98.0%) agreed with physician orders for life-sustaining treatment (POLST). In total, 143 (95.9%) received antibiotics, 110 (76.9%) received combination antibiotic treatment, and 116 (81.1%) were given antibiotics until the day of death. In a survey of 60 medical staff, 42 (70.0%) did not know about ASP, and 24 (40.0%) thought ASP was important in EOL care. Nineteen doctors (31.7%) discussed the use or discontinuation of antibiotics with patients or caregivers when writing POLST, but only 8 patients (5.6%) stopped antibiotics after POLST. CONCLUSION Most cancer patients with EOL care continue to receive antibiotics until just before their death. A careful approach is needed, considering the benefits and side effects of antibiotic use, and the patient's right to self-decision. It is necessary to actively improve awareness of ASP and its importance for medical staff.
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Affiliation(s)
- Min Kwan Kwon
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul,
Korea
| | - Kyung Hwa Jung
- Department of Infectious Diseases, Uijeongbu Eulji Medical Center, Eulji University School of Medicine, Uijeongbu,
Korea
| | - Sungim Choi
- Division of Infectious Diseases, Department of Internal Medicine, Dongguk University Ilsan Hospital, Goyang,
Korea
| | - Hyeonjeong Kim
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul,
Korea
| | - Chang-Yun Woo
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul,
Korea
| | - Mingee Lee
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul,
Korea
| | - Jeong Geun Ji
- Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul,
Korea
| | - Hyo-Ju Son
- Department of Infectious Diseases, Uijeongbu Eulji Medical Center, Eulji University School of Medicine, Uijeongbu,
Korea
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16
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Soto-Garcia LF, Guerrero-Rodriguez ID, Hoang L, Laboy-Segarra SL, Phan NTK, Villafuerte E, Lee J, Nguyen KT. Photocatalytic and Photothermal Antimicrobial Mussel-Inspired Nanocomposites for Biomedical Applications. Int J Mol Sci 2023; 24:13272. [PMID: 37686076 PMCID: PMC10488035 DOI: 10.3390/ijms241713272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/16/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Bacterial infection has traditionally been treated with antibiotics, but their overuse is leading to the development of antibiotic resistance. This may be mitigated by alternative approaches to prevent or treat bacterial infections without utilization of antibiotics. Among the alternatives is the use of photo-responsive antimicrobial nanoparticles and/or nanocomposites, which present unique properties activated by light. In this study, we explored the combined use of titanium oxide and polydopamine to create nanoparticles with photocatalytic and photothermal antibacterial properties triggered by visible or near-infrared light. Furthermore, as a proof-of-concept, these photo-responsive nanoparticles were combined with mussel-inspired catechol-modified hyaluronic acid hydrogels to form novel light-driven antibacterial nanocomposites. The materials were challenged with models of Gram-negative and Gram-positive bacteria. For visible light, the average percentage killed (PK) was 94.6 for E. coli and 92.3 for S. aureus. For near-infrared light, PK for E. coli reported 52.8 and 99.2 for S. aureus. These results confirm the exciting potential of these nanocomposites to prevent the development of antibiotic resistance and also to open the door for further studies to optimize their composition in order to increase their bactericidal efficacy for biomedical applications.
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Affiliation(s)
| | | | | | | | | | | | | | - Kytai T. Nguyen
- Department of Bioengineering, The University of Texas at Arlington, Arlington, TX 76010, USA
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17
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Budală DG, Luchian I, Tatarciuc M, Butnaru O, Armencia AO, Virvescu DI, Scutariu MM, Rusu D. Are Local Drug Delivery Systems a Challenge in Clinical Periodontology? J Clin Med 2023; 12:4137. [PMID: 37373830 PMCID: PMC10298898 DOI: 10.3390/jcm12124137] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/13/2023] [Accepted: 06/18/2023] [Indexed: 06/29/2023] Open
Abstract
Placing antimicrobial treatments directly in periodontal pockets is an example of the local administration of antimicrobial drugs to treat periodontitis. This method of therapy is advantageous since the drug concentration after application far surpasses the minimum inhibitory concentration (MIC) and lasts for a number of weeks. As a result, numerous local drug delivery systems (LDDSs) utilizing various antibiotics or antiseptics have been created. There is constant effort to develop novel formulations for the localized administration of periodontitis treatments, some of which have failed to show any efficacy while others show promise. Thus, future research should focus on the way LDDSs can be personalized in order to optimize future clinical protocols in periodontal therapy.
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Affiliation(s)
- Dana Gabriela Budală
- Department of Implantology, Removable Prostheses, Dental Prostheses Technology, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universității Street, 700115 Iași, Romania; (D.G.B.)
| | - Ionut Luchian
- Department of Periodontology, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universității Street, 700115 Iași, Romania
| | - Monica Tatarciuc
- Department of Implantology, Removable Prostheses, Dental Prostheses Technology, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universității Street, 700115 Iași, Romania; (D.G.B.)
| | - Oana Butnaru
- Department of Biophysics, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universității Street, 700115 Iasi, Romania
| | - Adina Oana Armencia
- Department of Surgery and Oral Health, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universității Street, 700115 Iași, Romania
| | - Dragoș Ioan Virvescu
- Department of Fixed Prosthodontics, Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universității Street, 700115 Iasi, Romania
| | - Monica Mihaela Scutariu
- Department of Implantology, Removable Prostheses, Dental Prostheses Technology, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universității Street, 700115 Iași, Romania; (D.G.B.)
| | - Darian Rusu
- Department of Periodontology, Faculty of Dental Medicine, “Anton Sculean” Research Center for Periodontal and Peri-Implant Diseases, “Victor Babes” University of Medicine and Pharmacy, Piața Eftimie Murgu 2, 300041 Timisoara, Romania
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18
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Wang X, Wang L, Luo M, Bu Q, Liu C, Jiang L, Xu R, Wang S, Zhang H, Zhang J, Wan X, Li H, Wang Y, Liu B, Zhao Y, Chen Y, Dai Y, Li M, Wang H, Tian J, Zhao Y, Cen X. Integrated lipidomic and transcriptomic analysis reveals clarithromycin-induced alteration of glycerophospholipid metabolism in the cerebral cortex of mice. Cell Biol Toxicol 2023; 39:771-793. [PMID: 34458952 DOI: 10.1007/s10565-021-09646-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 08/16/2021] [Indexed: 02/05/2023]
Abstract
Clarithromycin (CLA) has been widely used in the treatment of bacterial infection. Research reveals the adverse effects on the central nervous system among patients receiving CLA treatment; whereas, a relevant underlying mechanism remains considerably unclear. According to our research, an integrated lipidomic and transcriptomic analysis was applied to explore the effect of CLA on neurobehavior. CLA treatment caused anxiety-like behaviors dose-dependently during open field as well as elevated plus maze trials on mice. Transcriptomes and LC/MS-MS-based metabolomes were adopted for investigating how CLA affected lipidomic profiling as well as metabolic pathway of the cerebral cortex. CLA exposure greatly disturbed glycerophospholipid metabolism and the carbon chain length of fatty acids. By using whole transcriptome sequencing, we found that CLA significantly downregulated the mRNA expression of CEPT1 and CHPT1, two key enzymes involved in the synthesis of glycerophospholipids, supporting the findings from the lipidomic profiling. Also, CLA causes changes in neuronal morphology and function in vitro, which support the existing findings concerning neurobehavior in vivo. We speculate that altered glycerophospholipid metabolism may be involved in the neurobehavioral effect of CLA. Our findings contribute to understanding the mechanisms of CLA-induced adverse effects on the central nervous system. 1. Clarithromycin treatment caused anxiety-like behavior with dose-dependent response both in the open field and elevated plus maze test in mice; 2. Clarithromycin exposing predominately disturbed the metabolism of glycerophospholipids in the cerebral cortex of mice; 3. Clarithromycin application remarkably attenuated CEPT1 and CHPT1 gene expression, which participate in the last step in the synthesis of glycerophospholipids; 4. The altered glycerophospholipid metabolomics may be involved in the abnormal neurobehavior caused by clarithromycin.
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Affiliation(s)
- Xiaojie Wang
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China
| | - Liang Wang
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China
| | - Mingyi Luo
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China
| | - Qian Bu
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China
| | - Chunqi Liu
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China
| | - Linhong Jiang
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China
| | - Rui Xu
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China
| | - Shaomin Wang
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China
| | - Haoluo Zhang
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China
| | - Jiamei Zhang
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China
| | - Xuemei Wan
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China
| | - Hongchun Li
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China
| | - Yonghai Wang
- Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, People's Republic of China
| | - Bin Liu
- Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, People's Republic of China
| | - Ying Zhao
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China
| | - Yuanyuan Chen
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China
| | - Yanping Dai
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China
| | - Min Li
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China
| | - Hongbo Wang
- Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, People's Republic of China
| | - Jingwei Tian
- Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, People's Republic of China
| | - Yinglan Zhao
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China
| | - Xiaobo Cen
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Medical School, West China Hospital, Sichuan University, #1 Keyuan Road, Gaopeng Street, High-tech Development Zone, Chengdu, 610041, People's Republic of China.
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19
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Skuredina AA, Yakupova LR, Kopnova TY, Le-Deygen IM, Belogurova NG, Kudryashova EV. Cyclodextrins and Their Polymers Affect Human Serum Albumin's Interaction with Drugs Used in the Treatment of Pulmonary Infections. Pharmaceutics 2023; 15:1598. [PMID: 37376047 DOI: 10.3390/pharmaceutics15061598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/04/2023] [Accepted: 05/23/2023] [Indexed: 06/29/2023] Open
Abstract
Respiratory infectious diseases have challenged medical communities and researchers. Ceftriaxone, meropenem and levofloxacin are widely used for bacterial infection treatment, although they possess severe side effects. To overcome this, we propose cyclodextrin (CD) and CD-based polymers as a drug delivery system for the drugs under consideration. CD polymers demonstrate higher binding affinity for levofloxacin (Ka ≈ 105 M) compared to drug-CD complexes. CDs slightly alter the drugs' affinity for human serum albumin (HSA), whereas CD polymers increase the drugs' binding affinity up to 100 times. The most significant effect was observed for more the hydrophilic drugs ceftriaxone and meropenem. The drug's encapsulation in CD carriers leads to a decrease in the degree of change in the protein's secondary structure. The drug-CD carrier-HSA complexes demonstrate satisfying antibacterial activity in vitro, and even a high binding affinity does not decrease the drug's microbiological properties after 24 h. The proposed carriers are promising for a drug form with a prolonged drug release.
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Affiliation(s)
- Anna A Skuredina
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Linara R Yakupova
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Tatiana Yu Kopnova
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Irina M Le-Deygen
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Natalya G Belogurova
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Elena V Kudryashova
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
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20
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Tingsgård S, Israelsen SB, Thorlacius-Ussing L, Frahm Kirk K, Lindegaard B, Johansen IS, Knudsen A, Lunding S, Ravn P, Østergaard Andersen C, Benfield T. Short course antibiotic treatment of Gram-negative bacteraemia (GNB5): a study protocol for a randomised controlled trial. BMJ Open 2023; 13:e068606. [PMID: 37156588 PMCID: PMC10173995 DOI: 10.1136/bmjopen-2022-068606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/10/2023] Open
Abstract
INTRODUCTION Prolonged use of antibiotics is closely related to antibiotic-associated infections, antimicrobial resistance and adverse drug events. The optimal duration of antibiotic treatment for Gram-negative bacteremia (GNB) with a urinary tract source of infection is poorly defined. METHODS AND ANALYSIS Investigator-initiated multicentre, non-blinded, non-inferiority randomised controlled trial with two parallel treatment arms. One arm will receive shortened antibiotic treatment of 5 days and the other arm will receive antibiotic treatment of 7 days or longer. Randomisation will occur in equal proportion (1:1) no later than day 5 of effective antibiotic treatment as determined by antibiogram. Immunosuppressed patients and those with GNB due to non-fermenting bacilli (Acinetobacter spp, Pseudomonas spp), Brucella spp, Fusobacterium spp or polymicrobial growth are ineligible.The primary endpoint is 90-day survival without clinical or microbiological failure to treatment. Secondary endpoints include all-cause mortality, total duration of antibiotic treatment, hospital readmission and Clostridioides difficile infection. Interim safety analysis will be performed after the recruitment of every 100 patients. Given an event rate of 12%, a non-inferiority margin of 10%, and 90% power, the required sample size to determine non-inferiority is 380 patients. Analyses will be performed on both intention-to-treat and per-protocol populations. ETHICS AND DISSEMINATION The study is approved by the Danish Regional Committee on Health Research (H-19085920) and the Danish Medicines Agency (2019-003282-17). The results of the main trial and each of the secondary endpoints will be submitted for publication in a peer-reviewed journal. TRIAL REGISTRATION NUMBER ClinicalTrials.Gov:NCT04291768.
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Affiliation(s)
- Sandra Tingsgård
- Center of Research and Disruption of Infectious Diseases, Department of Infectious Diseases, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark
| | - Simone Bastrup Israelsen
- Center of Research and Disruption of Infectious Diseases, Department of Infectious Diseases, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark
| | - Louise Thorlacius-Ussing
- Center of Research and Disruption of Infectious Diseases, Department of Infectious Diseases, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark
| | - Karina Frahm Kirk
- Department of Infectious Diseases, Aalborg University Hospital, Aalborg, Denmark
| | - Birgitte Lindegaard
- Department of Pulmonary Medicine and Infectious Diseases, Copenhagen University Hospital - North Zealand, Hillerød, Denmark
| | - Isik S Johansen
- Department of Infectious Diseases, Odense Universitetshospital, Odense, Denmark
| | - Andreas Knudsen
- Department of Respiratory Medicine and Infectious Diseases, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
| | - Suzanne Lunding
- Department of Internal Medicine, Section for Infectious Diseases, Copenhagen University Hospital - Herlev and Gentofte, Hellerup, Denmark
| | - Pernille Ravn
- Department of Internal Medicine, Section for Infectious Diseases, Copenhagen University Hospital - Herlev and Gentofte, Hellerup, Denmark
| | | | - Thomas Benfield
- Center of Research and Disruption of Infectious Diseases, Department of Infectious Diseases, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark
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21
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Butler J, Handy RD, Upton M, Besinis A. Review of Antimicrobial Nanocoatings in Medicine and Dentistry: Mechanisms of Action, Biocompatibility Performance, Safety, and Benefits Compared to Antibiotics. ACS NANO 2023; 17:7064-7092. [PMID: 37027838 PMCID: PMC10134505 DOI: 10.1021/acsnano.2c12488] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
This review discusses topics relevant to the development of antimicrobial nanocoatings and nanoscale surface modifications for medical and dental applications. Nanomaterials have unique properties compared to their micro- and macro-scale counterparts and can be used to reduce or inhibit bacterial growth, surface colonization and biofilm development. Generally, nanocoatings exert their antimicrobial effects through biochemical reactions, production of reactive oxygen species or ionic release, while modified nanotopographies create a physically hostile surface for bacteria, killing cells via biomechanical damage. Nanocoatings may consist of metal nanoparticles including silver, copper, gold, zinc, titanium, and aluminum, while nonmetallic compounds used in nanocoatings may be carbon-based in the form of graphene or carbon nanotubes, or composed of silica or chitosan. Surface nanotopography can be modified by the inclusion of nanoprotrusions or black silicon. Two or more nanomaterials can be combined to form nanocomposites with distinct chemical or physical characteristics, allowing combination of different properties such as antimicrobial activity, biocompatibility, strength, and durability. Despite their wide range of applications in medical engineering, questions have been raised regarding potential toxicity and hazards. Current legal frameworks do not effectively regulate antimicrobial nanocoatings in matters of safety, with open questions remaining about risk analysis and occupational exposure limits not considering coating-based approaches. Bacterial resistance to nanomaterials is also a concern, especially where it may affect wider antimicrobial resistance. Nanocoatings have excellent potential for future use, but safe development of antimicrobials requires careful consideration of the "One Health" agenda, appropriate legislation, and risk assessment.
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Affiliation(s)
- James Butler
- School
of Engineering, Computing and Mathematics, Faculty of Science and
Engineering, University of Plymouth, Drake Circus, Plymouth PL4 8AA, United Kingdom
| | - Richard D. Handy
- School
of Biological and Marine Sciences, Faculty of Science and Engineering, University of Plymouth, Drake Circus, Plymouth PL4 8AA, United Kingdom
| | - Mathew Upton
- School
of Biomedical Sciences, Faculty of Health, University of Plymouth, Drake Circus, Plymouth PL4 8AA, United
Kingdom
| | - Alexandros Besinis
- School
of Engineering, Computing and Mathematics, Faculty of Science and
Engineering, University of Plymouth, Drake Circus, Plymouth PL4 8AA, United Kingdom
- Peninsula
Dental School, Faculty of Health, University
of Plymouth, Drake Circus, Plymouth PL4 8AA, United Kingdom
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22
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Poh CW, Goh CK, Tan DJH, Chong CS. Antibiotics vs observational therapy in acute uncomplicated diverticulitis, a systemic review and meta-analysis. Int J Colorectal Dis 2023; 38:97. [PMID: 37059809 DOI: 10.1007/s00384-023-04389-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/29/2023] [Indexed: 04/16/2023]
Abstract
PURPOSE Antibiotics have long been recommended as a form of conservative therapy in patients with acute uncomplicated diverticulitis despite no supporting evidence. This meta-analysis aims to assess the difference in outcomes between observational therapy and antibiotics regime in patients with acute uncomplicated diverticulitis. METHODS Medline and Embase electronic databases were reviewed. A comparative meta-analysis in odds ratios (ORs) or mean difference (MD) was conducted using a random effects model for dichotomous and continuous outcomes, respectively. Randomized controlled trials comparing outcomes in patients with acute uncomplicated diverticulitis on observational therapy compared to antibiotics regime were selected. Outcomes of interest included all-cause mortality, complications, emergency surgery rates, length of stay, and recurrence. RESULTS A total of 7 articles looking at 5 different randomized controlled trials were included. A total of 2959 patients with acute uncomplicated diverticulitis comprising of 1485 patients on antibiotics therapy and 1474 patients on observational therapy were included in the comparison. We found that there was no statistically significant difference in all-cause mortality (OR = 0.98; 95% CI 0.53;1.81; p = 0.68), complications (OR = 1.04; 95% CI 0.36;3.02; p = 0.51), emergency surgery (OR = 1.24; 95% CI 0.70;2.19, p = 0.92), length of stay (M.D: -0.14, 95% CI -0.50;0.23, p < 0.001), and recurrent diverticulitis (OR 1.01; 95% CI 0.83;1.22, p < 0.91) between the two arms. CONCLUSION This systemic review and meta-analysis found that there is no statistically significant difference in outcomes between patients with acute uncomplicated diverticulitis who were put on observational therapy compared to the antibiotics regime. This suggests that observational therapy is an equally safe and effective therapy as compared to antibiotics therapy.
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Affiliation(s)
- Chen Wei Poh
- Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Dr, Singapore, 117597, Singapore
| | - Chloe Keyi Goh
- Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Dr, Singapore, 117597, Singapore
| | - Darren Jun Hao Tan
- Yong Loo Lin School of Medicine, National University of Singapore, 10 Medical Dr, Singapore, 117597, Singapore
| | - Choon Seng Chong
- Division of Colorectal Surgery, University Surgical Cluster, National University Health System, 1E Kent Ridge Road, Singapore, 119228, Singapore.
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23
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Novel Non-Toxic Highly Antibacterial Chitosan/Fe(III)-Based Nanoparticles That Contain a Deferoxamine—Trojan Horse Ligands: Combined Synthetic and Biological Studies. Processes (Basel) 2023. [DOI: 10.3390/pr11030870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023] Open
Abstract
In this study, we prepared chitosan/Fe(III)/deferoxamine nanoparticles with unimodal size distribution (hydrodynamic diameter ca. 250 nm, zeta potential ca. 32 mV). The elaborated nanoparticles are characterized by outstanding in vitro and in vivo antibacterial activity, which exceeds even that of commercial antibiotics ampicillin and gentamicin. Moreover, the nanoparticles are non-toxic. We found that the introduction of iron ions into the chitosan matrix increases the ability of the resulting nanoparticles to disrupt the integrity of the membranes of microorganisms in comparison with pure chitosan. The introduction of deferoxamine into the obtained nanoparticles sharply expands their effect of destruction the bacterial membrane. The obtained antibacterial nanoparticles are promising for further preclinical studies.
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24
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Inhibitory effect of 405 nm laser light on bacterial biofilm in urethral stent. Sci Rep 2023; 13:3908. [PMID: 36890147 PMCID: PMC9995349 DOI: 10.1038/s41598-023-30280-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 02/20/2023] [Indexed: 03/10/2023] Open
Abstract
The clinical use of urethral stents is usually complicated by various adverse effects, including dysuria, fever, and urinary tract infection (UTI). Biofilms (formed by bacteria, such as Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus) adhering to the stent cause UTIs in stented patients (approximately 11%). The undesirable consequences of antibiotics use include bacterial resistance, weight gain, and type 1 diabetes, which occur when antibiotics are used for a long time. We aimed to assess the efficacy of a new optical treatment with a 405 nm laser to inhibit bacterial growth in a urethral stent in vitro. The urethral stent was grown in S. aureus broth media for three days to induce biofilm formation under dynamic conditions. Various irradiation times with the 405 nm laser light were tested (5, 10, and 15 min). The efficacy of the optical treatment on biofilms was evaluated quantitatively and qualitatively. The production of reactive oxygen species helped eliminate the biofilm over the urethral stent after 405 nm irradiation. The inhibition rate corresponded to a 2.2 log reduction of colony-forming units/mL of bacteria after 0.3 W/cm2 of irradiation for 10 min. The treated stent showed a significant reduction in biofilm formation compared with the untreated stent, as demonstrated by SYTO 9 and propidium iodide staining. MTT assays using the CCD-986sk cell line revealed no toxicity after 10 min of irradiation. We conclude that optical treatment with 405 nm laser light inhibits bacterial growth in urethral stents with no or minimal toxicity.
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25
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Parajuli K, Fahim N, Mumu S, Palu R, Mustafa A. Antibacterial potential of Luidia clathrata (sea star) tissue extracts against selected pathogenic bacteria. PLoS One 2023; 18:e0281889. [PMID: 36862671 PMCID: PMC9980771 DOI: 10.1371/journal.pone.0281889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 02/01/2023] [Indexed: 03/03/2023] Open
Abstract
As resistance to traditional antibiotics has become a major issue, it is essential to explore natural sources for new antimicrobial agents. The marine environment offers a variety of natural bioactive compounds. In this study, we examined the antibacterial potential of Luidia clathrata, a tropical sea star species. The experiment was conducted against both gram-positive (Bacillus subtilis, Enterococcus faecalis, Staphylococcus aureus, Bacillus cereus and Mycobacterium smegmatis) and gram-negative (Proteus mirabilis, Salmonella typhimurium, Escherichia coli, Pseudomonas aeruginosa and Klebsiella pneumoniae) bacteria using disk diffusion method. Specifically, we extracted the body wall and gonad using methanol, ethyl acetate, and hexane. Our findings show that the body wall extract using ethyl acetate (1.78μg/ml) was particularly effective against all tested pathogens, while the gonad extract (0.107μg/ml) showed activity against six out of ten selected pathogens. This is a crucial and new discovery that suggests L. clathrata may be a useful source for discovering antibiotics and more research is required to pinpoint and comprehend the active ingredients.
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Affiliation(s)
- Kusum Parajuli
- Department of Biological Sciences, Purdue University Fort Wayne, Fort Wayne, IN, United States of America
| | - Nahian Fahim
- Department of Biological Sciences, Purdue University Fort Wayne, Fort Wayne, IN, United States of America
| | - Sinthia Mumu
- Department of Biological Sciences, Purdue University Fort Wayne, Fort Wayne, IN, United States of America
| | - Rebecca Palu
- Department of Biological Sciences, Purdue University Fort Wayne, Fort Wayne, IN, United States of America
| | - Ahmed Mustafa
- Department of Biological Sciences, Purdue University Fort Wayne, Fort Wayne, IN, United States of America
- * E-mail:
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26
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Capacity of a Microbial Synbiotic To Rescue the In Vitro Metabolic Activity of the Gut Microbiome following Perturbation with Alcohol or Antibiotics. Appl Environ Microbiol 2023; 89:e0188022. [PMID: 36840551 PMCID: PMC10056957 DOI: 10.1128/aem.01880-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
Abstract
The human gut microbiome contributes crucial bioactive metabolites that support human health and is sensitive to perturbations from the ingestion of alcohol and antibiotics. We interrogated the response and recovery of human gut microbes after acute alcohol or broad-spectrum antibiotic administration in a gut model simulating the luminal and mucosal colonic environment with an inoculated human microbiome. Both alcohol and antibiotic treatments reduced the production of major short-chain fatty acids (SCFAs) (acetate, propionate, and butyrate), which are established modulators of human health. Treatment with a microbial synbiotic restored and enhanced gut function. Butyrate and acetate production increased by up to 29.7% and 18.6%, respectively, relative to untreated, dysbiotic samples. In parallel, treatment led to increases in the relative abundances of beneficial commensal organisms not found in the synbiotic (e.g., Faecalibacterium prausnitzii and the urolithin-producing organism Gordonibacter pamelaeae) as well as species present in the synbiotic (e.g., Bifidobacterium infantis), suggesting synergistic interactions between supplemented and native microorganisms. These results lead us to conclude that functional shifts in the microbiome, evaluated by both metabolite production and specific taxonomic compositional changes, are an appropriate metric to assess microbiome "recovery" following a dysbiosis-inducing disruption. Overall, these findings support the execution of randomized clinical studies to determine whether a microbial synbiotic can help restore microbiome function after a disruption. IMPORTANCE The human gut microbiome is sensitive to disruptions by common stressors such as alcohol consumption and antibiotic treatment. In this study, we used an in vitro system modeling the gut microbiome to investigate whether treatment with a microbial synbiotic can help restore microbiome function after stress. We find that a complex gut community treated with alcohol or antibiotics showed reduced levels of production of short-chain fatty acids, which are critical beneficial molecules produced by a healthy gut microbiota. Treatment of stressed communities with a microbial synbiotic resulted in the recovery of SCFA production as well as an increase in the abundance of beneficial commensal organisms. Our results suggest that treatment with a microbial synbiotic has the potential to restore healthy gut microbiome function after stress and merits further investigation in clinical studies.
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27
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Nickel JC, Doiron RC. An Effective Sublingual Vaccine, MV140, Safely Reduces Risk of Recurrent Urinary Tract Infection in Women. Pathogens 2023; 12:359. [PMID: 36986281 PMCID: PMC10052183 DOI: 10.3390/pathogens12030359] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 02/07/2023] [Accepted: 02/16/2023] [Indexed: 02/24/2023] Open
Abstract
Uncomplicated recurrent urinary tract infections (rUTIs) in women are associated with episodic bothersome symptoms and have a significant impact on the mental and physical quality of life. Treatment with antibiotics (short- and long-term dosing) results in acute and chronic side effects and costs and promotes general antibiotic resistance. Improved nonantibiotic management of rUTI in women represents a true, unmet medical need. MV140 is a novel sublingual mucosal-based bacterial vaccine developed for the prevention of rUTI in women. Based on observational, prospective, and randomized placebo-controlled studies, MV140 has been shown to safely prevent (or reduce the risk of) UTIs, reduce antibiotic use, overall management costs, and patient burden while improving the overall quality of life in women suffering from rUTIs.
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Affiliation(s)
- J. Curtis Nickel
- Department of Urology, Queen’s University, Kingston, ON K7L 3N6, Canada
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28
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Polymeric Nanoparticles as Tunable Nanocarriers for Targeted Delivery of Drugs to Skin Tissues for Treatment of Topical Skin Diseases. Pharmaceutics 2023; 15:pharmaceutics15020657. [PMID: 36839979 PMCID: PMC9964857 DOI: 10.3390/pharmaceutics15020657] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/05/2023] [Accepted: 02/07/2023] [Indexed: 02/18/2023] Open
Abstract
The topical route is the most appropriate route for the targeted delivery of drugs to skin tissues for the treatment of local skin diseases; however, the stratum corneum (SC), the foremost layer of the skin, acts as a major barrier. Numerous passive and active drug delivery techniques have been exploited to overcome this barrier; however, these modalities are associated with several detrimental effects which restrict their clinical applicability. Alternatively, nanotechnology-aided interventions have been extensively investigated for the topical administration of a wide range of therapeutics. In this review, we have mainly focused on the biopharmaceutical significance of polymeric nanoparticles (PNPs) (made from natural polymers) for the treatment of various topical skin diseases such as psoriasis, atopic dermatitis (AD), skin infection, skin cancer, acute-to-chronic wounds, and acne. The encapsulation of drug(s) into the inner core or adsorption onto the shell of PNPs has shown a marked improvement in their physicochemical properties, avoiding premature degradation and controlling the release kinetics, permeation through the SC, and retention in the skin layers. Furthermore, functionalization techniques such as PEGylation, conjugation with targeting ligand, and pH/thermo-responsiveness have shown further success in optimizing the therapeutic efficacy of PNPs for the treatment of skin diseases. Despite enormous progress in the development of PNPs, their clinical translation is still lacking, which could be a potential future perspective for researchers working in this field.
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29
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Sanner JR, Jain K, Williams J, Hurley MN. Antibiotics for chronic pulmonary infection in children with a neurodisability (neurodevelopmental disorder). Cochrane Database Syst Rev 2023; 2:CD013813. [PMID: 36757320 PMCID: PMC9909774 DOI: 10.1002/14651858.cd013813.pub2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
BACKGROUND 'Neurodisability' refers to a group of conditions that result primarily from a neurological problem (e.g. cerebral palsy), neuromuscular problem (e.g. a muscular dystrophy) or developmental problems (e.g. developmental impairment, Down syndrome). Children and young people with these conditions may have similar problems with mobility, feeding and airway clearance. Chest and breathing problems (including pulmonary infections) are commonly experienced by children and young people with neurodisabilities and are often a cause for them requiring hospital care. For those who are unable to completely clear their airway of secretions, or have frequent infections, pulmonary infections may not be able to be completely eradicated and therefore become chronic. It is unclear what treatment is best for children and young people in this position. OBJECTIVES To assess the effectiveness and adverse effects of antibiotic treatment for chronic pulmonary infection in children and young people living with a neurodisability, including quality-of-life measures, effects on hospitalisation and healthcare contacts. SEARCH METHODS We searched the Cochrane Airways Trials Register, Cochrane Acute Respiratory Infections Group Register of Trials (CARIGRT), Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE (Ovid), Embase (Ovid), Cumulative Index to Nursing and Allied Health Literature (CINAHL), OpenGrey (www.opengrey.eu) and three trials registries up to 8 February 2022. Additionally, we identified related systematic reviews through Epistemonikos.org (8 February 2022) and searched reference lists of these. SELECTION CRITERIA All randomised controlled trials of antibiotic therapy for chronic pulmonary infection in children and young people up to the age of 18 living with a neurodisability were eligible. DATA COLLECTION AND ANALYSIS Two independent review authors screened results of the searches against predetermined inclusion criteria, resolving any discrepancies by discussion. MAIN RESULTS We identified a total of 1968 independent records through our searches, of which we assessed six full-text articles for eligibility. We identified one ongoing study as well as one related substudy but did not identify any completed studies eligible for inclusion in this systematic review. AUTHORS' CONCLUSIONS The findings of this systematic review highlight a lack of evidence in the antibiotic treatment of chronic pulmonary infection in children and young people up to the age of 18 living with a neurodisability. Further research examining this topic is therefore required.
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Affiliation(s)
- Juliane Rf Sanner
- Department of Family Health, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Kamini Jain
- Leicester Children's Hospital, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Jane Williams
- Department of Family Health, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Matthew N Hurley
- Paediatric Respiratory Medicine, Nottingham University Hospitals NHS Trust, Nottingham, UK
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30
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Zhang Z, Li X, Yang R, Cullion K, Prugneau L, Kohane DS. Enhancement of Trans-Tympanic Drug Delivery by Pharmacological Induction of Inflammation. Mol Pharm 2023; 20:1375-1381. [PMID: 36633440 DOI: 10.1021/acs.molpharmaceut.2c00959] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Drug delivery directly across the tympanic membrane (TM) could eliminate systemic exposure to antibiotics prescribed for otitis media, the most common reason for pediatricians to prescribe antibiotics. Here, we hypothesized that inducing inflammation of the TM could enhance drug flux across the TM. We demonstrated that the flux of ciprofloxacin across the TM was greatly increased by treatment with the proinflammatory agent histamine. That enhancement was blocked by concurrent treatment with blockers of histamine receptor 1. Treatment of the TM with histamine was able to enhance drug flux sufficiently to eradicate otitis media in vivo in chinchillas, but only if the histamine was applied prior to treatment with antibiotics.
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Affiliation(s)
- Zipei Zhang
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Division of Critical Care Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Xiyu Li
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Division of Critical Care Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Rong Yang
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Division of Critical Care Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Kathleen Cullion
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Division of Critical Care Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
| | - Laura Prugneau
- Department of Biological Engineering, Polytech Nice Sophia, Nice 06200, France
| | - Daniel S Kohane
- Laboratory for Biomaterials and Drug Delivery, Department of Anesthesiology, Division of Critical Care Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
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31
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Dobrovanov O, Dmytriiev D, Prochotsky A, Vidiscak M, Furkova K. Pain in COVID-19: Quis est culpa? ELECTRONIC JOURNAL OF GENERAL MEDICINE 2023. [DOI: 10.29333/ejgm/12672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
<b>Background</b>: At present, during the coronavirus disease (COVID-19) pandemic, chronic pain is becoming more prominent, and it is also associated with the post-COVID-19 syndrome. Thanks to quick decisions on the therapy and as part of COVID-19 prevention, we have succeeded in stabilising the situation all over the world. On the other hand, ‘quick decisions’ have contributed to other significant issues which we are beginning to deal with now: in the effort to defeat the virus, many experts regarded the adverse effects of the medications used to be of secondary importance.<br />
<b>Purpose:</b> The article aims to demonstrate the side effects of treatment with various drugs (and their combinations) that are used to treat COVID-19 disease.<br />
<b>Method: </b>From the beginning of January until mid-May, the COVID-19 department of the 2nd Surgical Clinic of the Faculty of Medicine of the Comenius University in Bratislava (University Hospital Bratislava, Hospital of Saints Cyril and Methodius) treated 221 patients with moderate and severe course of COVID-19 (2nd wave of the pandemic). We saw some adverse effects and lack of effect of certain drugs for COVID-19.<br />
<b>Results: </b>The benefits of preventive measures compared to treatment are enormous. For example, corticoids can impair metabolism, cause diabetes, or suppress immunity. Antibiotics may cause colitis and blood pressure medications may negatively impact blood circulation.<br />
<b>Conclusion: </b>Preventive measures such as vaccination and activation of intrinsic antiviral immune systems are based on an incomparable benefit. Important in the process of the activation of antiviral immunity (linked to interferon synthesis) in the prevention of COVID-19 is the improvement of vitamin D deficit and the use of other micronutrients.<br />
<b>Practical value:</b> The results of the study will be valuable in the field of medicine, for virologists, pharmacologists, pharmacists, and medical professionals.
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Affiliation(s)
- Oleksandr Dobrovanov
- A. Getlik Clinic for Children and Adolescents SMU and UHB, Slovak Medical University in Bratislava, Bratislava, SLOVAK REPUBLIC
| | - Dmytro Dmytriiev
- Department of Anesthesiology and Intensive Care, National Pirogov Memorial Medical University, Vinnytsya, UKRAINE
| | - Augustin Prochotsky
- 2nd Surgical Clinic of the Medical Faculty of Comenius University, Bratislava, SLOVAK REPUBLIC
| | - Marian Vidiscak
- Department of Pediatric Surgery, Slovak Medical University in Bratislava, Bratislava, SLOVAK REPUBLIC
| | - Katarina Furkova
- A. Getlik Clinic for Children and Adolescents SMU and UHB, Slovak Medical University in Bratislava, Bratislava, SLOVAK REPUBLIC
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32
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Saleh MA, Elmaaty AA, El Saeed HS, Saleh MM, Salah M, Ezz Eldin RR. Structure based design and synthesis of 3-(7-nitro-3-oxo-3,4-dihydroquinoxalin-2-yl)propanehydrazide derivatives as novel bacterial DNA-gyrase inhibitors: In-vitro, In-vivo, In-silico and SAR studies. Bioorg Chem 2022; 129:106186. [PMID: 36215786 DOI: 10.1016/j.bioorg.2022.106186] [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: 07/12/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 11/02/2022]
Abstract
Antimicrobial resistance (AMR) is one of the critical challenges that have been encountered over the past years. On the other hand, bacterial DNA gyrase is regarded as one of the most outstanding biological targets that quinolones can extensively inhibit, improving AMR. Hence, a novel series of 3-(7-nitro-3-oxo-3,4-dihydroquinoxalin-2-yl)propanehydrazide derivatives (3-6j) were designed and synthesized employing the quinoxaline-2-one scaffold and relying on the pharmacophoric features experienced by the quinolone antibiotic; ciprofloxacin. The antibacterial activity of the synthesized compounds was assessed via in-vitro approaches using eight different Gram-positive and Gram-negative bacterial species. Most of the synthesized compounds revealed eligible antibacterial activities. In particular, compounds 6d and 6e displayed promising antibacterial activity among the investigated compounds. For example, compounds 6d and 6e displayed MIC values of 9.40 and 9.00 µM, respectively, regarding S. aureus, and 4.70 and 4.50 µM, respectively, regarding S. pneumonia in comparison to ciprofloxacin (12.07 µM). The cytotoxicity of compounds 6d and 6e were performed on normal human WI-38 cell lines with IC50 values of 288.69 and 227.64 μM, respectively assuring their safety and selectivity. Besides, DNA gyrase inhibition assay of compounds 6d and 6e was carried out in comparison to ciprofloxacin, and interestingly, compounds 6d and 6e disclosed promising IC50 values of 0.242 and 0.177 μM, respectively, whereas ciprofloxacin displayed an IC50 value of 0.768 μM, assuring the proposed mechanism of action for the afforded compounds. Consequently, compounds 6d and 6e were further assessed via in-vivo approaches by evaluating blood counts, liver and kidney functions, and histopathological examination. Both compounds were found to be safer on the liver and kidney than the reference ciprofloxacin. Moreover, in-silico molecular docking studies were established and revealed reasonable binding affinities for all afforded compounds, particularly compound 6d which exhibited a binding score of -7.51 kcal/mol, surpassing the reference ciprofloxacin (-7.29 kcal/mol) with better anticipated stability at the DNA gyrase binding pocket. Moreover, ADME studies were conducted, disclosing an eligible bioavailability score of >0.55 for all afforded compounds, and reasonable GIT absorption without passing the blood brain barrier was attained for most investigated compounds, ensuring their efficacy and safety. Lastly, a structure activity relationship study for the synthesized compounds was established and unveiled that not only the main pharmacophores required for DNA gyrase inhibition are enough for exerting promising antimicrobial activities, but also derivatization with diverse aryl/hetero aryl aldehydes is essential for their enhanced antimicrobial potential.
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Affiliation(s)
- Marwa A Saleh
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Ayman Abo Elmaaty
- Medicinal Chemistry Department, Faculty of Pharmacy, Port Said University, Port Said 42526, Egypt.
| | - Hoda S El Saeed
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt
| | - Moustafa M Saleh
- Microbiology and Immunology Department, Faculty of Pharmacy, Port Said University, Egypt
| | - Mohammed Salah
- Microbiology and Immunology Department, Faculty of Pharmacy, Port Said University, Egypt
| | - Rogy R Ezz Eldin
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Port Said University, Port Said, Egypt.
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Kelly SH, Votaw NL, Cossette BJ, Wu Y, Shetty S, Shores LS, Issah LA, Collier JH. A sublingual nanofiber vaccine to prevent urinary tract infections. SCIENCE ADVANCES 2022; 8:eabq4120. [PMID: 36417519 PMCID: PMC9683704 DOI: 10.1126/sciadv.abq4120] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
Urinary tract infections (UTIs) are a major public health problem affecting millions of individuals each year. Recurrent UTIs are managed by long-term antibiotic use, making the alarming rise of antibiotic resistance a substantial threat to future UTI treatment. Extended antibiotic regimens may also have adverse effects on the microbiome. Here, we report the use of a supramolecular vaccine to provide long-term protection against uropathogenic Escherichia coli, which cause 80% of uncomplicated UTIs. We designed mucus-penetrating peptide-polymer nanofibers to enable sublingual (under the tongue) vaccine delivery and elicit antibody responses systemically and in the urogenital tract. In a mouse model of UTI, we demonstrate equivalent efficacy to high-dose oral antibiotics but with significantly less perturbation of the gut microbiome. We also formulate our vaccine as a rapid-dissolving sublingual tablet that raises response in mice and rabbits. Our approach represents a promising alternative to antibiotics for the treatment and prevention of UTIs.
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Affiliation(s)
| | - Nicole L. Votaw
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | | | - Yaoying Wu
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Shamitha Shetty
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | | | - Luqman A. Issah
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
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Okoye CO, Nyaruaba R, Ita RE, Okon SU, Addey CI, Ebido CC, Opabunmi AO, Okeke ES, Chukwudozie KI. Antibiotic resistance in the aquatic environment: Analytical techniques and interactive impact of emerging contaminants. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2022; 96:103995. [PMID: 36210048 DOI: 10.1016/j.etap.2022.103995] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 09/19/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
Antibiotic pollution is becoming an increasingly severe threat globally. Antibiotics have emerged as a new class of environmental pollutants due to their expanding usage and indiscriminate application in animal husbandry as growth boosters. Contamination of aquatic ecosystems by antibiotics can have a variety of negative impacts on the microbial flora of these water bodies, as well as lead to the development and spread of antibiotic-resistant genes. Various strategies for removing antibiotics from aqueous systems and environments have been developed. Many of these approaches, however, are constrained by their high operating costs and the generation of secondary pollutants. This review aims to summarize research on the distribution and effects of antibiotics in aquatic environments, their interaction with other emerging contaminants, and their remediation strategy. The ecological risks associated with antibiotics in aquatic ecosystems and the need for more effective monitoring and detection system are also highlighted.
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Affiliation(s)
- Charles Obinwanne Okoye
- Biofuels Institute, School of Environment & Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China; Department of Zoology & Environmental Biology, University of Nigeria, Nsukka 410001, Nigeria; Organization of African Academic Doctor, Nairobi, Kenya
| | - Raphael Nyaruaba
- Center for Biosafety Megascience, Wuhan Institute of Virology, CAS, Wuhan, PR China; Organization of African Academic Doctor, Nairobi, Kenya
| | - Richard Ekeng Ita
- Department of Biological Sciences Ritman University, Ikot Ekpene, Akwa Ibom State, Nigeria; Organization of African Academic Doctor, Nairobi, Kenya
| | - Samuel Ukpong Okon
- Department of Marine Science, Akwa Ibom State University, Mkpat Enin, P.M.B. 1167, Nigeria; Department of Ocean Engineering, Ocean College, Zhejiang University, Zhoushan 316021, PR China; Organization of African Academic Doctor, Nairobi, Kenya
| | - Charles Izuma Addey
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, PR China; Organization of African Academic Doctor, Nairobi, Kenya
| | - Chike C Ebido
- Department of Zoology & Environmental Biology, University of Nigeria, Nsukka 410001, Nigeria; Organization of African Academic Doctor, Nairobi, Kenya
| | | | - Emmanuel Sunday Okeke
- Department of Biochemistry, Faculty of Biological Sciences & Natural Science Unit, School of General Studies, University of Nigeria, Nsukka, Enugu State 410001, Nigeria; Institute of Environmental Health and Ecological Security, School of Environment and Safety Engineering, Jiangsu University, 212013, PR China; Organization of African Academic Doctor, Nairobi, Kenya.
| | - Kingsley Ikechukwu Chukwudozie
- Department of Microbiology, University of Nigeria, Nsukka, Enugu State 410001, Nigeria; Organization of African Academic Doctor, Nairobi, Kenya; Department of Clinical Medicine, School of Medicine, Jiangsu University 212013, PR China.
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35
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Villanueva JA, Crooks AL, Nagy TA, Quintana JLJ, Dalebroux ZD, Detweiler CS. Salmonella enterica Infections Are Disrupted by Two Small Molecules That Accumulate within Phagosomes and Differentially Damage Bacterial Inner Membranes. mBio 2022; 13:e0179022. [PMID: 36135367 PMCID: PMC9601186 DOI: 10.1128/mbio.01790-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 09/06/2022] [Indexed: 11/23/2022] Open
Abstract
Gram-negative bacteria have a robust cell envelope that excludes or expels many antimicrobial agents. However, during infection, host soluble innate immune factors permeabilize the bacterial outer membrane. We identified two small molecules that exploit outer membrane damage to access the bacterial cell. In standard microbiological media, neither compound inhibited bacterial growth nor permeabilized bacterial outer membranes. In contrast, at micromolar concentrations, JAV1 and JAV2 enabled the killing of an intracellular human pathogen, Salmonella enterica serovar Typhimurium. S. Typhimurium is a Gram-negative bacterium that resides within phagosomes of cells from the monocyte lineage. Under broth conditions that destabilized the lipopolysaccharide layer, JAV2 permeabilized the bacterial inner membrane and was rapidly bactericidal. In contrast, JAV1 activity was more subtle: JAV1 increased membrane fluidity, altered reduction potential, and required more time than JAV2 to disrupt the inner membrane barrier and kill bacteria. Both compounds interacted with glycerophospholipids from Escherichia coli total lipid extract-based liposomes. JAV1 preferentially interacted with cardiolipin and partially relied on cardiolipin production for activity, whereas JAV2 generally interacted with lipids and had modest affinity for phosphatidylglycerol. In mammalian cells, neither compound significantly altered mitochondrial membrane potential at concentrations that killed S. Typhimurium. Instead, JAV1 and JAV2 became trapped within acidic compartments, including macrophage phagosomes. Both compounds improved survival of S. Typhimurium-infected Galleria mellonella larvae. Together, these data demonstrate that JAV1 and JAV2 disrupt bacterial inner membranes by distinct mechanisms and highlight how small, lipophilic, amine-substituted molecules can exploit host soluble innate immunity to facilitate the killing of intravesicular pathogens. IMPORTANCE Innovative strategies for developing new antimicrobials are needed. Combining our knowledge of host-pathogen interactions and relevant drug characteristics has the potential to reveal new approaches to treating infection. We identified two compounds with antibacterial activity specific to infection and with limited host cell toxicity. These compounds appeared to exploit host innate immunity to access the bacterium and differentially damage the bacterial inner membrane. Further, both compounds accumulated within Salmonella-containing and other acidic vesicles, a process known as lysosomal trapping, which protects the host and harms the pathogen. The compounds also increased host survival in an insect infection model. This work highlights the ability of host innate immunity to enable small molecules to act as antibiotics and demonstrates the feasibility of antimicrobial targeting of the inner membrane. Additionally, this study features the potential use of lysosomal trapping to enhance the activities of compounds against intravesicular pathogens.
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Affiliation(s)
- Joseph A. Villanueva
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado Boulder, Boulder, Colorado, USA
| | - Amy L. Crooks
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado Boulder, Boulder, Colorado, USA
| | - Toni A. Nagy
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado Boulder, Boulder, Colorado, USA
| | - Joaquin L. J. Quintana
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado Boulder, Boulder, Colorado, USA
| | - Zachary D. Dalebroux
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Corrella S. Detweiler
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado Boulder, Boulder, Colorado, USA
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36
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Simultaneous Determination of 37 Anti-infective Drugs Potentially Illegally Added to Cosmetics that Claimed to have Anti-acne Effects by UHPLC-Q-TOF HRMS. Chromatographia 2022. [DOI: 10.1007/s10337-022-04206-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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37
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Li L, Cheng X, Huang Q, Cheng Y, Xiao J, Hu J. Sprayable Antibacterial Hydrogels by Simply Mixing of Aminoglycoside Antibiotics and Cellulose Nanocrystals for the Treatment of Infected Wounds. Adv Healthc Mater 2022; 11:e2201286. [PMID: 35933585 DOI: 10.1002/adhm.202201286] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/29/2022] [Indexed: 01/28/2023]
Abstract
Antibiotic hydrogels with sustained release profiles are recognized as promising candidates to treat local bacterial infections with reduced adverse effects. However, it still remains challenging for clinical translation of these antibiotic gels due to safety concern of gel ingredients, complicated synthesis and fabrication procedures, and unsatisfactory rheological properties for practical uses in vivo. Herein, the preparation of a type of sprayable hydrogels by ionic interactions between aminoglycosides and cellulose nanocrystals (CNC) is proposed for the treatment of local infections such as bacteria-infected wounds. The CNC-based hydrogels are applicable for all kinds of aminoglycoside antibiotics and show excellent gel stability and rheological behaviors such as shear thinning and fast self-healing, allowing facile administration by injection or spraying. The hydrogels exhibit efficient antibacterial activity both in vitro and in vivo, and accelerate bacteria-infected wounds by spraying on the infected area. The proposed hydrogels by simply mixing of aminoglycosides and CNC provide great prospects for clinical translation in the treatment of local infections.
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Affiliation(s)
- Lin Li
- Department of Orthopedics Oncology, Changzheng Hospital, Navy Medical University, Shanghai, 200003, China
| | - Xuejing Cheng
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Quan Huang
- Department of Orthopedics Oncology, Changzheng Hospital, Navy Medical University, Shanghai, 200003, China
| | - Yiyun Cheng
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Jianru Xiao
- Department of Orthopedics Oncology, Changzheng Hospital, Navy Medical University, Shanghai, 200003, China
| | - Jingjing Hu
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, China
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38
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Dual beta-lactam treatment: Pros and cons. Porto Biomed J 2022; 7:e189. [DOI: 10.1097/j.pbj.0000000000000189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 05/01/2022] [Accepted: 05/11/2022] [Indexed: 11/22/2022] Open
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39
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Perspectives for Uses of Propolis in Therapy against Infectious Diseases. Molecules 2022; 27:molecules27144594. [PMID: 35889466 PMCID: PMC9320184 DOI: 10.3390/molecules27144594] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/06/2022] [Accepted: 07/06/2022] [Indexed: 01/22/2023] Open
Abstract
Propolis has gained wide popularity over the last decades in several parts of the world. In parallel, the literature about propolis composition and biological properties increased markedly. A great number of papers have demonstrated that propolis from different parts of the world is composed mainly of phenolic substances, frequently flavonoids, derived from plant resins. Propolis has a relevant role in increasing the social immunity of bee hives. Experimental evidence indicates that propolis and its components have activity against bacteria, fungi, and viruses. Mechanisms of action on bacteria, fungi, and viruses are known for several propolis components. Experiments have shown that propolis may act synergistically with antibiotics, antifungals, and antivirus drugs, permitting the administration of lower doses of drugs and higher antimicrobial effects. The current trend of growing resistance of microbial pathogens to the available drugs has encouraged the introduction of propolis in therapy against infectious diseases. Because propolis composition is widely variable, standardized propolis extracts have been produced. Successful clinical trials have included propolis extracts as medicine in dentistry and as an adjuvant in the treatment of patients against COVID-19. Present world health conditions encourage initiatives toward the spread of the niche of propolis, not only as traditional and alternative medicine but also as a relevant protagonist in anti-infectious therapy. Production of propolis and other apiary products is environmentally friendly and may contribute to alleviating the current crisis of the decline of bee populations. Propolis production has had social-economic relevance in Brazil, providing benefits to underprivileged people.
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40
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Lin H, Jia Y, Kong X, Wang S, Liu X, Liu Y, Deng Y. In Vivo Evaluation of Cefuroxime Axetil-Loaded Bioadhesive Nanoparticles to Treat Haemophilus influenzae-Induced Otitis Media. Front Bioeng Biotechnol 2022; 10:884797. [PMID: 35573224 PMCID: PMC9099258 DOI: 10.3389/fbioe.2022.884797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 04/04/2022] [Indexed: 11/25/2022] Open
Abstract
Otitis media (OM) is a common disease in children. One of the most common pathogens causing OM is non-typeable Haemophilus influenzae (NTHi). NTHi in the middle ear can be successfully eradicated by a regimen of oral antibiotics sustained for 7–10 days (e.g., cefuroxime axetil 250 mg/day for patients aged 3 months to 2 years and 500 mg/day for patients ages ≥2 years). However, lack of compliance is relevant to treatment failure or early relapse. In order to overcome these challenges, we have developed antibiotics-loaded bioadhesive nanoparticles (BNPs) that can adhere to the epidermis of the middle ear after local administration and significantly prolong the release time of antibiotics in the middle ear. Compared with oral administration of CA, local delivery of free antibiotic cefuroxime axetil (CA), and CA loaded non-bioadhesive nanoparticles (CA/NNPs), BNPs loaded with cefuroxime axetil (CA/BNPs) showed significantly longer retention time in the middle ear, resulting in continuous release of the drug and higher therapeutic efficacy against OM with only a single dosage. CA concentrations were maintained above the minimum inhibitory concentration (MIC) for NTHi throughout 7 days’ treatment. NTHi OM in a mouse model was successfully eradicated without causing tissue toxicity. CA/BNPs minimize systemic drug exposure through local administration, as demonstrated by undetectable levels in the blood.
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Affiliation(s)
| | | | | | | | | | - Yang Liu
- *Correspondence: Yang Liu, ; Yang Deng,
| | - Yang Deng
- *Correspondence: Yang Liu, ; Yang Deng,
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41
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Retrospective study comparing success rates of lumbar puncture positions in infants. Am J Emerg Med 2022; 56:228-231. [PMID: 35462151 DOI: 10.1016/j.ajem.2022.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/06/2022] [Accepted: 04/09/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND A lumbar puncture (LP) is performed in the emergency room for diagnostic purposes; unsuccessful or traumatic LPs can complicate decision making. The sitting position has a larger interspinous process compared to lateral recumbent and is safer in sick neonates at risk for cardiac and respiratory instability. PURPOSE Our study aims to determine which position (lateral recumbent or sitting) is associated with a greater likelihood of successful lumbar puncture in infants <3 months when performed in the emergency room. BASIC PROCEDURES This is a retrospective chart review in infants aged <3 months who had a LP performed in a pediatric emergency room. The primary outcome was the rate of successful LPs, defined as obtaining adequate CSF to send for all studies. The secondary outcome was the proportion of atraumatic LPs by position, defined as <500 RBCs or < 10,000 RBCs. MAIN FINDINGS A total of 557 charts were reviewed with 116 in the sitting position and 441 in the lateral recumbent position. The primary outcome of adequate CSF fluid collection was not significantly different between groups (63% sitting position versus 58% lateral recumbent position; p = 0.22). In addition, the proportion of atraumatic LPs showed no significant difference regardless of RBC cutoff (<500 RBCs p = 0.83, <10,000 RBCs p = 0.60). PRINCIPLE CONCLUSIONS This study found no evidence that there is a difference in rate of LP success nor the proportion of traumatic LP in infants less than 3 months of age when positioned in the sitting position compared to the lateral recumbent position.
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42
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Gund MP, Wrbas KT, Hannig M, Rupf S. Apical periodontitis after intense bruxism. BMC Oral Health 2022; 22:91. [PMID: 35331220 PMCID: PMC8951715 DOI: 10.1186/s12903-022-02123-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 03/16/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Bruxism is known to cause masticatory muscle pain, temporomandibular joint pain, headaches, mechanical tooth wear, prosthodontic complications and cracked teeth. Less known to the practitioner, and described only experimentally in literature, is that bruxism can also damage the pulp. To our knowledge, this is the first known clinical case of a patient developing apical periodontitis due to bruxism. CASE PRESENTATION This article presents the case and successful treatment of a 28-year-old healthy male patient with apical periodontitis on teeth 36 and 46 requiring root canal treatment after an intense phase of bruxism. Due to an unclear diagnosis, treatment had been delayed. CONCLUSIONS Incomprehensible tooth pain can be the result of bruxism. Practitioners need to be informed that intense bruxism can possibly lead to apical periodontitis. It is important, therefore, that a thorough anamnesis is collected and taken into account during diagnostics.
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Affiliation(s)
- Madline P Gund
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, Saarland University Hospital, Saarland University, Kirrberger Str. 100, Building 73, 66421, Homburg, Saar, Germany.
| | - Karl-Thomas Wrbas
- Department of Operative Dentistry and Periodontology, Centre for Dental Medicine, Oral and Maxillofacial Surgery, Medical Centre, University of Freiburg, Freiburg i.Br., Germany.,Division of Endodontics, Department of Dentistry, Faculty of Medicine and Dentistry, Danube Private University, 3500, Krems, Austria
| | - Matthias Hannig
- Clinic of Operative Dentistry, Periodontology and Preventive Dentistry, Saarland University Hospital, Saarland University, Kirrberger Str. 100, Building 73, 66421, Homburg, Saar, Germany
| | - Stefan Rupf
- Chair of Synoptic Dentistry, Saarland University, Kirrbergerstr. 100, Building 73, 66421, Homburg, Germany
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Naz SS, Malik T. Summary of Probiotic Potential of the Kefir for the Prevention and Alleviation of Functional GI Diseases. CURRENT NUTRITION & FOOD SCIENCE 2022. [DOI: 10.2174/1573401318666220321140726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Functional Gastrointestinal (GI) disease is a term that refers to a range
of disease conditions involving chronic diarrhea, irritable bowel syndrome, constipation,
inflammatory bowel disease (IBD), and lactose intolerance. Statistical reports have documented
>40% of the world's population is being afflicted by functional GI disorders. Consequences of
frequent intake of antibiotics include mortality of gut microflora, antibiotic-associated diarrhea,
the establishment of antibiotic resistance, and inference with healthy bodily functions. To
overcome the harms of antibiotics, studies are being conducted to determine the potential of
probiotics as alternatives to antibiotics.
Aim of Study:
The purpose of constructing this literature review is to outline the potential
attributes of Kefir and to assess the solitary efficiency of this beverage in the amelioration of GI
disease conditions.
Methodology:
Extraction of data entailed digging of literature hubs including PubMed, PubMed
Central, Research Gate, Science Direct, and Google Scholar, employing a different combination
of keywords to retrieve substantial details. Selection criteria of the articles involved the
published reports of preceding 10 years (2012-2021) that exhibited relevancy with the topic
Conclusion:
Kefir grains having different origins provide a distinct array of antimicrobial
spectrums and are found to be effective against different pathogens. IBDs, diarrheal sicknesses,
and constipation can be alleviated by the consumption of this beverage. Moreover, the probioticantibiotic combination is also essential for the mitigation of several diseases. The synergistic
impact of several microbial strains is vital for the treatment of celiac disease. Lactose maldigestion can be relieved by the consumption of kefir having β-galactosidase enzyme activity.
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Affiliation(s)
- Sheikh Saba Naz
- Microbiology, Science, Jinnah University for Women, Karachi, Pakistan
| | - Taqdees Malik
- Microbiology, Science, Jinnah University for Women, Karachi, Pakistan
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44
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Sreckovic S, Ladjevic N, Jokanovic M, Vracevic D, Milovanovic D, Simic M, Korica S, Kadija M. Rifampicin induced fever during treatment against Staphylococcal biofilm in a patient with periprosthetic joint infection. Br J Clin Pharmacol 2022; 88:3887-3890. [PMID: 35084053 DOI: 10.1111/bcp.15248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 12/31/2021] [Accepted: 01/07/2022] [Indexed: 11/28/2022] Open
Abstract
Periprosthetic joint infection (PJI) after total knee arthroplasty remains a challenging complication. The treatment options for PJI include different procedures; however, regardless of the strategy, antibiotics are required. The combination of different antibiotics increased the rates of PJI eradication. For almost three decades, rifampicin has been used as part of antibiotic therapy for PJI. Drug fever, a febrile response that coincides with the onset of drug administration and disappears after drug discontinuation in the absence of other underlying conditions that could cause fever, is frequently misdiagnosed. Case presentation: We present the case of a 72-year-old man with PJI six months after total knee arthroplasty. Two-stage revision surgery was followed by culture-directed antibiotic treatment (ciprofloxacin and rifampicin) against Staphylococcus aureus isolated from the periprosthetic tissue. On the fifth day of antibiotic treatment, the patient became febrile, and in the next five days, he had an intermittent fever of up to 40 °C, although he showed clinical improvement. The patient was normotensive without a maculopapular rash, urticaria, or clotting abnormalities. A drug fever was suspected, and rifampicin was discontinued. A re-challenge test was performed, and the fever recurred. Antibiotic treatment with ciprofloxacin was continued, and after 12 months of follow-up, the patient was doing well. Conclusion: Clinicians should be aware that fever could be a clinical presentation of drug fever. If it occurs during an infection, drug fever could necessitate additional diagnostic procedures for further evaluation, inadequate antibiotic therapy, and prolonged hospitalisation.
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Affiliation(s)
- Svetlana Sreckovic
- Centre of anesthesia and resuscitation, University clinical center of Serbia, Belgrade, Serbia.,Clinic for orthopedics surgery and traumatology, University clinical Center of Serbia, Belgrade, Serbia.,Medical School, University of Belgrade, Belgrade, Serbia
| | - Nebojsa Ladjevic
- Centre of anesthesia and resuscitation, University clinical center of Serbia, Belgrade, Serbia.,Clinic for orthopedics surgery and traumatology, University clinical Center of Serbia, Belgrade, Serbia.,Medical School, University of Belgrade, Belgrade, Serbia
| | - Maja Jokanovic
- Centre of anesthesia and resuscitation, University clinical center of Serbia, Belgrade, Serbia.,Clinic for orthopedics surgery and traumatology, University clinical Center of Serbia, Belgrade, Serbia
| | - Dragana Vracevic
- Centre of anesthesia and resuscitation, University clinical center of Serbia, Belgrade, Serbia.,Clinic for orthopedics surgery and traumatology, University clinical Center of Serbia, Belgrade, Serbia
| | - Darko Milovanovic
- Clinic for orthopedics surgery and traumatology, University clinical Center of Serbia, Belgrade, Serbia.,Medical School, University of Belgrade, Belgrade, Serbia
| | - Marko Simic
- Clinic for orthopedics surgery and traumatology, University clinical Center of Serbia, Belgrade, Serbia
| | - Stefan Korica
- Clinic for orthopedics surgery and traumatology, University clinical Center of Serbia, Belgrade, Serbia
| | - Marko Kadija
- Clinic for orthopedics surgery and traumatology, University clinical Center of Serbia, Belgrade, Serbia.,Medical School, University of Belgrade, Belgrade, Serbia
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45
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Shao Y, Wang Y, Yuan Y, Xie Y. A systematic review on antibiotics misuse in livestock and aquaculture and regulation implications in China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 798:149205. [PMID: 34375247 DOI: 10.1016/j.scitotenv.2021.149205] [Citation(s) in RCA: 136] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 07/14/2021] [Accepted: 07/18/2021] [Indexed: 06/13/2023]
Abstract
China is one of the largest producers and consumers of antibiotics, and China is a larger producer of livestock farming and aquaculture in the world. The livestock farming and aquaculture industry is a major area of antibiotic misuse, which has caused serious antibiotic residues and environment pollution. The antibiotic residues exceeding the standard may lead to antibiotic resistances in animals or human bodies, which poses a threat to human health. In this context, this study tries to systematically review the current situation of antibiotic misuse in livestock and aquaculture in China, and put forward corresponding regulatiory measures for the central government. Based on the status quo of livestock farming and aquaculture in China, this study reviewed antibiotic misuse in livestock farming and aquaculture and antibiotic resistance in China, introduced China's current policies on antibiotic regulation and the gap between China and developed countries, and analyzed the implications of current regulatory policies on animal health and productivity. At last, we put forward suggestions for the future antibiotic regulation, including strictly implementing the relevant laws and regulations, formulating specific supporting measures, encouraging the research and development of antibiotic substitutes, introducing advanced technologies for supervision and regulation, strengthening the publicity of science popularization and enhancing the public's awareness of the rational use of antibiotics. If these policy recommendations can be implemented, they will significantly promote the regulation of antibiotic abuse.
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Affiliation(s)
- Yitian Shao
- The New Types Key Think Tank of Zhejiang Province "China Research Institute of Regulation and Public Policy", Zhejiang University of Finance & Economics, Hangzhou 310018, China; China Institute of Regulation Research, Zhejiang University of Finance & Economics, Hangzhou 310018, China
| | - Yiping Wang
- Hangzhou City Health Bureau, Hangzhou, 310005, China
| | - Yiwen Yuan
- China Institute of Regulation Research, Zhejiang University of Finance & Economics, Hangzhou 310018, China
| | - Yujing Xie
- The New Types Key Think Tank of Zhejiang Province "China Research Institute of Regulation and Public Policy", Zhejiang University of Finance & Economics, Hangzhou 310018, China; China Institute of Regulation Research, Zhejiang University of Finance & Economics, Hangzhou 310018, China.
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46
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Bogie AL, Sparkman A, Anderson M, Crittenden-Byers C, Barron M. Is There a Difference in the Contamination Rates of Urine Samples Obtained by Bladder Catheterization and Clean-Catch Collection in Preschool Children? Pediatr Emerg Care 2021; 37:e788-e790. [PMID: 34772880 DOI: 10.1097/pec.0000000000002578] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The objective of this study was to compare contamination rates in urine samples obtained by transurethral catheterization and clean-catch methods in preschool children aged 2 to 5 years. METHODS A retrospective, chart review was performed on patients evaluated in our emergency department over a 6-month period who had a urine culture obtained by either transurethral catheterization or clean-catch methods. The charts were reviewed for urine bacterial colony counts and divided into positive, negative, or contaminated cohorts. Demographic data were collected as well. RESULTS Four hundred sixty patients met inclusion for this study. Of these patients, there were 120 samples collected by catheter (26.1%) and 340 samples collected by clean-catch method (73.9%).Female patients comprised 73% of the eligible samples (n = 336), and 27% were male (n = 124). Contamination rates significantly varied by collection method (P < 0.0001), with only 9 contaminated catheter samples (7.5%) and 125 contaminated clean-catch samples (36.76%). Contaminated samples were found in 122 of 336 female urine samples (36.3%), and 12 of 124 male urine samples (9.7%). There were no associations found between contamination rates and age within either sex. CONCLUSIONS Our study demonstrated a higher urine culture contamination rate in preschool age children in the clean-catch method group compared with the transurethral catheterization group. This finding was particularly strong within the female subset, which could partially be accounted for by the small male sample size.
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Affiliation(s)
- Amanda L Bogie
- From the University of Oklahoma College of Medicine, Oklahoma City, OK
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47
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Millanao AR, Mora AY, Villagra NA, Bucarey SA, Hidalgo AA. Biological Effects of Quinolones: A Family of Broad-Spectrum Antimicrobial Agents. Molecules 2021; 26:7153. [PMID: 34885734 PMCID: PMC8658791 DOI: 10.3390/molecules26237153] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 10/28/2021] [Accepted: 11/05/2021] [Indexed: 11/28/2022] Open
Abstract
Broad antibacterial spectrum, high oral bioavailability and excellent tissue penetration combined with safety and few, yet rare, unwanted effects, have made the quinolones class of antimicrobials one of the most used in inpatients and outpatients. Initially discovered during the search for improved chloroquine-derivative molecules with increased anti-malarial activity, today the quinolones, intended as antimicrobials, comprehend four generations that progressively have been extending antimicrobial spectrum and clinical use. The quinolone class of antimicrobials exerts its antimicrobial actions through inhibiting DNA gyrase and Topoisomerase IV that in turn inhibits synthesis of DNA and RNA. Good distribution through different tissues and organs to treat Gram-positive and Gram-negative bacteria have made quinolones a good choice to treat disease in both humans and animals. The extensive use of quinolones, in both human health and in the veterinary field, has induced a rise of resistance and menace with leaving the quinolones family ineffective to treat infections. This review revises the evolution of quinolones structures, biological activity, and the clinical importance of this evolving family. Next, updated information regarding the mechanism of antimicrobial activity is revised. The veterinary use of quinolones in animal productions is also considered for its environmental role in spreading resistance. Finally, considerations for the use of quinolones in human and veterinary medicine are discussed.
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Affiliation(s)
- Ana R. Millanao
- Facultad de Ciencias, Instituto de Farmacia, Universidad Austral de Chile, Valdivia 5090000, Chile;
| | - Aracely Y. Mora
- Programa de Doctorado en Bioquímica, Universidad de Chile, Santiago 8380544, Chile;
| | - Nicolás A. Villagra
- Escuela de Tecnología Médica, Universidad Andres Bello, Santiago 8370071, Chile;
| | - Sergio A. Bucarey
- Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santiago 8820808, Chile;
| | - Alejandro A. Hidalgo
- Escuela de Química y Farmacia, Universidad Andres Bello, Santiago 8370071, Chile
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48
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PBPK Modeling and Simulation and Therapeutic Drug Monitoring: Possible Ways for Antibiotic Dose Adjustment. Processes (Basel) 2021. [DOI: 10.3390/pr9112087] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Pharmacokinetics (PK) is a branch of pharmacology present and of vital importance for the research and development (R&D) of new drugs, post-market monitoring, and continued optimizations in clinical contexts. Ultimately, pharmacokinetics can contribute to improving patients’ clinical outcomes, helping enhance the efficacy of treatments, and reducing possible adverse side effects while also contributing to precision medicine. This article discusses the methods used to predict and study human pharmacokinetics and their evolution to the current physiologically based pharmacokinetic (PBPK) modeling and simulation methods. The importance of therapeutic drug monitoring (TDM) and PBPK as valuable tools for Model-Informed Precision Dosing (MIPD) are highlighted, with particular emphasis on antibiotic therapy since dosage adjustment of antibiotics can be vital to ensure successful clinical outcomes and to prevent the spread of resistant bacterial strains.
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49
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Gelatin Methacryloyl Hydrogels for the Localized Delivery of Cefazolin. Polymers (Basel) 2021; 13:polym13223960. [PMID: 34833259 PMCID: PMC8618379 DOI: 10.3390/polym13223960] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/08/2021] [Accepted: 11/12/2021] [Indexed: 12/13/2022] Open
Abstract
The tuneability of hydrogels renders them promising candidates for local drug delivery to prevent and treat local surgical site infection (SSI) while avoiding the systemic side-effects of intravenous antibiotic injections. Here, we present a newly developed gelatin methacryloyl (GelMA)-based hydrogel drug delivery system (GelMA-DDS) to locally deliver the broad-spectrum antibiotic cefazolin for SSI prophylaxis and treatment. Antibiotic doses from 3 µg to 90 µg were loaded in photocrosslinked GelMA hydrogel discs with 5 to 15% w/v polymer concentration and drug encapsulation efficiencies, mechanical properties, crosslinking and release kinetics, as well as bacterial growth inhibition were assessed. Our results demonstrate that all GelMA groups supported excellent drug encapsulation efficiencies of up to 99%. Mechanical properties of the GelMA-DDS were highly tuneable and unaffected by the loading of small to medium doses of cefazolin. The diffusive and the proteolytic in vitro drug delivery of all investigated cefazolin doses was characterized by a burst release, and the delivered cefazolin amount was directly proportional to the encapsulated dose. Accelerated enzymatic degradation of the GelMA-DDS followed zero-order kinetics and was dependent on both the cefazolin dose and GelMA concentration (3-13 h). Finally, we demonstrate that cefazolin delivered from GelMA induced a dose-dependent antibacterial efficacy against S. aureus, in both a broth and a diffusive assay. The cefazolin-loaded GelMA-DDS presented here provides a highly tuneable and easy-to-use local delivery system for the prophylaxis and treatment of SSI.
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50
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Wang D, Ruan Z, Zhang R, Wang X, Wang R, Tang Z. Effect of Earthworm on Wound Healing: A Systematic Review and Meta-Analysis. Front Pharmacol 2021; 12:691742. [PMID: 34744704 PMCID: PMC8568887 DOI: 10.3389/fphar.2021.691742] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 09/17/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Earthworm, also called dilong (Chinese language), has been used as a traditional Chinese medicine for thousands of years. Recently, some scientists believe that earthworm extracts (EE) can promote wound healing. However, its effectiveness remains controversial. We conducted a meta-analysis to evaluate the effect of EE on wound healing based on the healing rate. Methods: We comprehensively reviewed literature that mentioned EE for wound healing in the PubMed, Cochrane Library, Embase, Web of Science, China National Knowledge Infrastructure (CNKI), VIP database for Chinese Technical Periodicals, and WanFang database that have been published until January 2021. We computed weighted mean difference (WMD) for analysis with RevMan 5.3 software in animal and human models groups. Two researchers independently selected studies and evaluated the risk of bias with the Cochrane Collaboration tool. The quality of the evidence was assessed with the Cochrane risk of bias tool. This study is registered on PROSPERO (CRD42020168400). Results: From 2,486 articles, we selected 16 studies for analysis. EE treatment was associated with improvements in wound healing performance based on wound healing rate (mouse model: weighted mean difference (WMD) = 3.55, 95% confidence interval (CI): 2.34-4.77, p < 0.00001; rat model: WMD = 17.29, 95% CI: 5.75-28.82, p = 0.003; rabbit model: WMD = 19.29, 95% CI: 9.95-28.64, p < 0.0001). Clinical studies also confirmed that EE could reduce healing time in hospital (WMD = -8.94, 95% CI: -17.75 to -0.14, p = 0.05). Conclusion: The results of this meta-analysis demonstrated the efficacy of EE on wound healing process. As a corollary, EE can be a useful natural product for wound healing drug development. Systematic Review Registration : https://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=168400, identifier CRD42020168400.
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Affiliation(s)
- Dong Wang
- Medical Research and Experiment Center, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Zhen Ruan
- Shaanxi University of Chinese Medicine, Xianyang, China
| | - Rongchao Zhang
- Medical Research and Experiment Center, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Xuejing Wang
- Medical Research and Experiment Center, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Ruihui Wang
- Medical Research and Experiment Center, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Zhishu Tang
- Medical Research and Experiment Center, Shaanxi University of Chinese Medicine, Xianyang, China
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