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Phogole CM, de Jong J, Lalla U, Decloedt E, Kellermann T. In vitro optimization of crushed drug-sensitive antituberculosis medication when administered via a nasogastric tube. Microbiol Spectr 2024; 12:e0287623. [PMID: 37991379 PMCID: PMC10871698 DOI: 10.1128/spectrum.02876-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 10/22/2023] [Indexed: 11/23/2023] Open
Abstract
IMPORTANCE The incidence of tuberculosis (TB) in intensive care units (ICUs) can be as high as 3% in high-burden settings, translating to more than 7,500 patients admitted to the ICU annually. In resource-limited settings, the lack or absence of intravenous formulations of drug-sensitive antituberculosis medications necessitates healthcare practitioners to crush, dissolve, and administer the drugs to critically ill patients via a nasogastric tube (NGT). This off-label practice has been linked to plasma concentrations below the recommended target concentrations, particularly of rifampicin and isoniazid, leading to clinical failure and the development of drug resistance. Optimizing the delivery of crushed drug-sensitive antituberculosis medication via the NGT to critically ill patients is of utmost importance.
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Affiliation(s)
- Cassius M. Phogole
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Jocelyn de Jong
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Usha Lalla
- Division of Pulmonology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Eric Decloedt
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Tracy Kellermann
- Division of Clinical Pharmacology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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2
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Qiao W, Liu Y, Fan X, Yang Y, Liu W, Wang L, Hu Z, Liu F, Jin C, Sun X, Liu D, Liu Q, Li L. Rapid and sensitive determination of ascorbic acid based on label-free silver triangular nanoplates. Curr Res Food Sci 2023; 7:100548. [PMID: 37534308 PMCID: PMC10391723 DOI: 10.1016/j.crfs.2023.100548] [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: 04/17/2023] [Revised: 07/01/2023] [Accepted: 07/09/2023] [Indexed: 08/04/2023] Open
Abstract
In this study, a new method for the detection of ascorbic acid (AA) was proposed. It was based on the protective effect of AA on silver triangular nanoplates (Ag TNPs) against Cl- induced etching reactions. Cl- can attack the corners of Ag TNPs and etch them, causing a morphological shift from triangular nanoplates to nanodiscs. As a result, the solution changes color from blue to yellow. However, in the presence of AA, the corners of Ag TNPs can be protected from Cl- etching, and the blue color of the solution remains unchanged. Using this effect, a selective sensor was designed to detect AA in the range of 0-40.00 μM with a detection limit of 2.17 μM. As the concentration of AA varies in this range, color changes from yellow to blue can be easily observed, so the designed sensor can be used for colorimetric detection. This method can be used to analyze fruit juice samples.
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Affiliation(s)
- Wenteng Qiao
- College of Food Engineering, Ludong University, Yantai 264025, Shandong, China
| | - Yushen Liu
- College of Food Engineering, Ludong University, Yantai 264025, Shandong, China
- Bio-Nanotechnology Research Institute, Ludong University, Yantai, 264025, Shandong, China
| | - Xiaotong Fan
- College of Food Engineering, Ludong University, Yantai 264025, Shandong, China
| | - Yunfeng Yang
- College of Food Engineering, Ludong University, Yantai 264025, Shandong, China
| | - Wenmei Liu
- College of Food Engineering, Ludong University, Yantai 264025, Shandong, China
| | - Luliang Wang
- College of Food Engineering, Ludong University, Yantai 264025, Shandong, China
- Bio-Nanotechnology Research Institute, Ludong University, Yantai, 264025, Shandong, China
| | - Zhenhua Hu
- College of Food Engineering, Ludong University, Yantai 264025, Shandong, China
- Bio-Nanotechnology Research Institute, Ludong University, Yantai, 264025, Shandong, China
| | - Fangjie Liu
- College of Food Engineering, Ludong University, Yantai 264025, Shandong, China
- Bio-Nanotechnology Research Institute, Ludong University, Yantai, 264025, Shandong, China
| | - Chengwu Jin
- College of Food Engineering, Ludong University, Yantai 264025, Shandong, China
| | - Xuemei Sun
- College of Food Engineering, Ludong University, Yantai 264025, Shandong, China
| | - Daotan Liu
- College of Food Engineering, Ludong University, Yantai 264025, Shandong, China
| | - Quanwen Liu
- College of Food Engineering, Ludong University, Yantai 264025, Shandong, China
| | - Lin Li
- Yantai Food and Drug Inspection and Testing Center, Yantai 264035, Shandong, China
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3
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Zhang WZ. Uric acid en route to gout. Adv Clin Chem 2023; 116:209-275. [PMID: 37852720 DOI: 10.1016/bs.acc.2023.05.003] [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] [Indexed: 10/20/2023]
Abstract
Gout and hyperuricemia (HU) have generated immense attention due to increased prevalence. Gout is a multifactorial metabolic and inflammatory disease that occurs when increased uric acid (UA) induce HU resulting in monosodium urate (MSU) crystal deposition in joints. However, gout pathogenesis does not always involve these events and HU does not always cause a gout flare. Treatment with UA-lowering therapeutics may not prevent or reduce the incidence of gout flare or gout-associated comorbidities. UA exhibits both pro- and anti-inflammation functions in gout pathogenesis. HU and gout share mechanistic and metabolic connections at a systematic level, as shown by studies on associated comorbidities. Recent studies on the interplay between UA, HU, MSU and gout as well as the development of HU and gout in association with metabolic syndromes, non-alcoholic fatty liver disease (NAFLD), and cardiovascular, renal and cerebrovascular diseases are discussed. This review examines current and potential therapeutic regimens and illuminates the journey from disrupted UA to gout.
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Affiliation(s)
- Wei-Zheng Zhang
- VIDRL, The Peter Doherty Institute, Melbourne, VIC, Australia.
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Kopčil M, Kanďár R. Screening method for the simultaneous determination of allantoin and uric acid from dried blood spots. J Pharm Biomed Anal 2023; 225:115222. [PMID: 36621284 DOI: 10.1016/j.jpba.2022.115222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 12/06/2022] [Accepted: 12/29/2022] [Indexed: 01/01/2023]
Abstract
Uric acid and its oxidation product allantoin are excellent biomarkers of oxidative stress in humans. Currently, there are high requirements not only for tests monitoring oxidative stress but also for screening laboratory tests in general. The highest demand is imposed on the simplest sampling, easy transport of the sample, and the shortest possible analysis time. The possible solution how to fulfil the requirements is sampling by dried blood spot technique with subsequent HPLC-MS/MS analysis. A fast, sensitive, and reliable HPLC-MS/MS method for the simultaneous determination of uric acid and allantoin from dried blood spots using stable isotopically labelled analogs as internal standards was developed. The separation took place in the reversed phase within 3 min, with protein precipitation and extraction in a one-step procedure. The analytical parameters of the method were satisfactory with an excellent linear range. The presented method was used to determine allantoin and uric acid levels in dried blood spot samples from 100 healthy volunteer donors. The median uric acid concentration in the cohort was 239.3 µmol/L and the median allantoin concentration was 5.6 µmol/L. The presented analytical protocol and method are suitable for screening and monitoring allantoin and uric acid levels as biomarkers of oxidative stress in clinical practice.
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Affiliation(s)
- Michal Kopčil
- Department of Biological and Biochemical Science, Faculty of Chemical Technology, The University of Pardubice, Pardubice, Czech Republic
| | - Roman Kanďár
- Department of Biological and Biochemical Science, Faculty of Chemical Technology, The University of Pardubice, Pardubice, Czech Republic.
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5
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Zhu Q, Du J, Li J, Wang J, Yang R, Li Z, Qu L. Methyl viologen induced fluorescence quenching of CdTe quantum dots for highly sensitive and selective "off-on" sensing of ascorbic acid through redox reaction. J Fluoresc 2022; 32:1405-1412. [PMID: 35438370 DOI: 10.1007/s10895-022-02925-2] [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: 10/18/2021] [Accepted: 03/01/2022] [Indexed: 11/30/2022]
Abstract
A turn-on fluorescent sensor based on CdTe quantum dots (QDs) is designed for highly sensitive and selective ascorbic acid (AA) detection. CdTe shows a strong emission centered at 578 nm. When assembled with poly(sodium 4-styrenesulfonate) (PSS) and methyl viologen (Mv2+) through electrostatic interaction, the emission is found to be effectively quenched. In the presence of AA, Mv2+ is reduced to Mv+, making the fluorescence of CdTe QDs restored. Under the optimal conditions, the proposed AA sensing method shows a linear proportional response from 0.8 µM to 20 µM, with the detecting limit as low as 50 nM. The developed method was successfully applied in the analysis of AA in human serum samples and cell lysates with satisfactory results.
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Affiliation(s)
- Qianqian Zhu
- College of Chemistry, Green catalysis center, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, 450001, Zhengzhou, China
| | - Jingjing Du
- College of Chemistry, Green catalysis center, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, 450001, Zhengzhou, China
| | - Jianjun Li
- College of Chemistry, Green catalysis center, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, 450001, Zhengzhou, China
| | - Jizhong Wang
- Key Laboratory of Southern Farmland Pollution Prevention and Control, Ministry of Agriculture and Rural Affairs, Hunan division of GRG Metrology and Test, 410000, Changsha, China
| | - Ran Yang
- College of Chemistry, Green catalysis center, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, 450001, Zhengzhou, China.
| | - Zhaohui Li
- College of Chemistry, Green catalysis center, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, 450001, Zhengzhou, China
| | - Lingbo Qu
- College of Chemistry, Green catalysis center, Henan Joint International Research Laboratory of Green Construction of Functional Molecules and Their Bioanalytical Applications, Zhengzhou Key Laboratory of Functional Nanomaterial and Medical Theranostic, Zhengzhou University, 450001, Zhengzhou, China.,Co-construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan, Education Ministry of P.R. China, Henan, China
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6
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Hu S, McCartney MM, Arredondo J, Sankaran-Walters S, Borras E, Harper RW, Schivo M, Davis CE, Kenyon NJ, Dandekar S. Inactivation of SARS-CoV-2 in clinical exhaled breath condensate samples for metabolomic analysis. J Breath Res 2021; 16:10.1088/1752-7163/ac3f24. [PMID: 34852327 PMCID: PMC9809239 DOI: 10.1088/1752-7163/ac3f24] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 12/01/2021] [Indexed: 01/05/2023]
Abstract
Exhaled breath condensate (EBC) is routinely collected and analyzed in breath research. Because it contains aerosol droplets, EBC samples from SARS-CoV-2 infected individuals harbor the virus and pose the threat of infectious exposure. We report for the first time a safe and consistent method to fully inactivate SARS-CoV-2 in EBC samples and make EBC samples safe for processing and analysis. EBC samples containing infectious SARS-CoV-2 were treated with several concentrations of acetonitrile. The most commonly used 10% acetonitrile treatment for EBC processing failed to completely inactivate the virus in samples and viable virus was detected by the assay of SARS-CoV-2 infection of Vero E6 cells in a biosafety level 3 laboratory. Treatment with either 50% or 90% acetonitrile was effective to completely inactivate the virus, resulting in safe, non-infectious EBC samples that can be used for metabolomic analysis. Our study provides SARS-CoV-2 inactivation protocol for the collection and processing of EBC samples in the clinical setting and for advancing to metabolic assessments in health and disease.
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Affiliation(s)
- Shuang Hu
- Department of Medical Microbiology and Immunology, School of Medicine, University of California Davis, Davis, CA 95616, United States of America
| | - Mitchell M McCartney
- Mechanical and Aerospace Engineering, University of California Davis, Davis, CA 95616, United States of America,UC Davis Lung Center, Davis, CA 95616, United States of America,VA Northern California Health Care System, Mather, CA 95655, United States of America
| | - Juan Arredondo
- Department of Medical Microbiology and Immunology, School of Medicine, University of California Davis, Davis, CA 95616, United States of America
| | - Sumathi Sankaran-Walters
- Department of Medical Microbiology and Immunology, School of Medicine, University of California Davis, Davis, CA 95616, United States of America
| | - Eva Borras
- Mechanical and Aerospace Engineering, University of California Davis, Davis, CA 95616, United States of America,UC Davis Lung Center, Davis, CA 95616, United States of America
| | - Richart W Harper
- UC Davis Lung Center, Davis, CA 95616, United States of America,VA Northern California Health Care System, Mather, CA 95655, United States of America,Department of Internal Medicine, University of California Davis, Sacramento, CA 95817, United States of America
| | - Michael Schivo
- UC Davis Lung Center, Davis, CA 95616, United States of America,VA Northern California Health Care System, Mather, CA 95655, United States of America,Department of Internal Medicine, University of California Davis, Sacramento, CA 95817, United States of America
| | - Cristina E Davis
- Mechanical and Aerospace Engineering, University of California Davis, Davis, CA 95616, United States of America,UC Davis Lung Center, Davis, CA 95616, United States of America,VA Northern California Health Care System, Mather, CA 95655, United States of America
| | - Nicholas J Kenyon
- UC Davis Lung Center, Davis, CA 95616, United States of America,VA Northern California Health Care System, Mather, CA 95655, United States of America,Department of Internal Medicine, University of California Davis, Sacramento, CA 95817, United States of America
| | - Satya Dandekar
- Department of Medical Microbiology and Immunology, School of Medicine, University of California Davis, Davis, CA 95616, United States of America,Author to whom any correspondence should be addressed.
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7
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Avelino KYPS, Dos Santos GS, Frías IAM, Silva-Junior AG, Pereira MC, Pitta MGR, de Araújo BC, Errachid A, Oliveira MDL, Andrade CAS. Nanostructured sensor platform based on organic polymer conjugated to metallic nanoparticle for the impedimetric detection of SARS-CoV-2 at various stages of viral infection. J Pharm Biomed Anal 2021; 206:114392. [PMID: 34607201 PMCID: PMC8462052 DOI: 10.1016/j.jpba.2021.114392] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/21/2021] [Accepted: 09/22/2021] [Indexed: 12/17/2022]
Abstract
The projection of new biosensing technologies for genetic identification of SARS-COV-2 is essential in the face of a pandemic scenario. For this reason, the current research aims to develop a label-free flexible biodevice applicable to COVID-19. A nanostructured platform made of polypyrrole (PPy) and gold nanoparticles (GNP) was designed for interfacing the electrochemical signal in miniaturized electrodes of tin-doped indium oxide (ITO). Oligonucleotide primer was chemically immobilized on the flexible transducers for the biorecognition of the nucleocapsid protein (N) gene. Methodological protocols based on cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and atomic force microscopy (AFM) were used to characterize the nanotechnological apparatus. The biosensor’s electrochemical performance was evaluated using the SARS-CoV-2 genome and biological samples of cDNA from patients infected with retrovirus at various disease stages. It is inferred that the analytical tool was able to distinguish the expression of SARS-CoV-2 in patients diagnosed with COVID-19 in the early, intermediate and late stages. The biosensor exhibited high selectivity by not recognizing the biological target in samples from patients not infected with SARS-CoV-2. The proposed sensor obtained a linear response range estimated from 800 to 4000 copies µL−1 with a regression coefficient of 0.99, and a detection limit of 258.01 copies µL−1. Therefore, the electrochemical biosensor based on flexible electrode technology represents a promising trend for sensitive molecular analysis of etiologic agent with fast and simple operationalization. In addition to early genetic diagnosis, the biomolecular assay may help to monitor the progression of COVID-19 infection in a novel manner.
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Affiliation(s)
- Karen Y P S Avelino
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil; Laboratório de Biodispositivos Nanoestruturados, Departamento de Bioquímica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Giselle S Dos Santos
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil; Laboratório de Biodispositivos Nanoestruturados, Departamento de Bioquímica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Isaac A M Frías
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil; Laboratório de Biodispositivos Nanoestruturados, Departamento de Bioquímica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Alberto G Silva-Junior
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil; Laboratório de Biodispositivos Nanoestruturados, Departamento de Bioquímica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Michelly C Pereira
- Laboratório de Imunomodulação e Novas Abordagens Terapêuticas, Núcleo de Pesquisa em Inovação Terapêutica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Maira G R Pitta
- Laboratório de Imunomodulação e Novas Abordagens Terapêuticas, Núcleo de Pesquisa em Inovação Terapêutica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Breno C de Araújo
- Laboratório de Imunomodulação e Novas Abordagens Terapêuticas, Núcleo de Pesquisa em Inovação Terapêutica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - Abdelhamid Errachid
- Université Claude Bernard Lyon 1, Institut des Sciences Analytiques (ISA), 5 rue de la Doua, 69100, Lyon, Villeurbane, France
| | - Maria D L Oliveira
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil; Laboratório de Biodispositivos Nanoestruturados, Departamento de Bioquímica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil
| | - César A S Andrade
- Programa de Pós-Graduação em Inovação Terapêutica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil; Laboratório de Biodispositivos Nanoestruturados, Departamento de Bioquímica, Universidade Federal de Pernambuco, 50670-901 Recife, PE, Brazil.
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