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Bartosova L, Balis P, Garaj V, Kovac A, Rajtik T, Piestansky J. A simple UHPLC-MS/MS method for determination of SET2, a selective antagonist of TRPV2 receptor, in rat plasma samples. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1235:124067. [PMID: 38422619 DOI: 10.1016/j.jchromb.2024.124067] [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: 01/08/2024] [Revised: 02/19/2024] [Accepted: 02/21/2024] [Indexed: 03/02/2024]
Abstract
Targeting the transient receptor potential vanilloid 2 channels (TRPV2) in order to alleviate or reverse the course of several diseases including multiple cancers, cardiovascular, immunological, or neurological disorders have been a matter of focus for several years now. SET2, a selective TRPV2 inhibitor, represents an innovative molecule which came into recognition in 2019 and seems to be a promising therapeutic modality in cancer and cardiac diseases. Drug discovery and bioanalysis in clinical environment demands simple, excellent, highly reliable, fast, sensitive, and selective analytical approaches which enable unambiguous identification and quantification of demanded molecule. Here, a targeted ultra-high-performance liquid chromatography - tandem mass spectrometry with electrospray ionization was developed for the quantification of SET2 in plasma samples. The developed method enabled analysis of approx. 15 samples within one hour. Simplicity of the whole analytical procedure can be emphasized by a very simple sample pretreatment based only on the protein precipitation with organic acid (here, 2 M tricholoroacetic acid). The validation procedure was characterized by promising validation parameters and excellent sensitivity what was documented by the limit of detection value at pg.mL-1 concentration level. Analytical validation reported intra- and interday accuracy < 15 % for all quality control samples concentration levels. Similarly, excellent level of intra- (0.1 - 4.8 %) and interday (0.5 - 3.3 %) precision for the tested quality control samples was obtained. The applicability of the developed method was proven by quantifying SET2 concentration levels in plasma samples obtained from Wistar rats that were administered this drug intraperitoneally at a dose of 25 mg/kg. We expect that our new analytical method represents a very attractive tool that could be easily implemented in pharmacokinetics studies and/or therapeutic drug monitoring. Moreover, its applicability was confirmed by the new practicability evaluation metric tool.
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Affiliation(s)
- Linda Bartosova
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University in Bratislava, Odbojarov 10, SK-832 32 Bratislava, Slovak Republic
| | - Peter Balis
- Centre of Experimental Medicine, Slovak Academy of Sciences, 841 04 Bratislava, Slovak Republic
| | - Vladimir Garaj
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Comenius University in Bratislava, Odbojarov 10, SK-832 32 Bratislava, Slovak Republic
| | - Andrej Kovac
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska cesta 9, SK-845 10 Bratislava, Slovak Republic
| | - Tomas Rajtik
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University in Bratislava, Odbojarov 10, SK-832 32 Bratislava, Slovak Republic; Centre of Experimental Medicine, Slovak Academy of Sciences, 841 04 Bratislava, Slovak Republic.
| | - Juraj Piestansky
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska cesta 9, SK-845 10 Bratislava, Slovak Republic; Department of Galenic Pharmacy, Faculty of Pharmacy, Comenius University in Bratislava, Odbojarov 10, SK-832 32 Bratislava, Slovak Republic; Toxicological and Antidoping Center, Faculty of Pharmacy, Comenius University in Bratislava, Odbojarov 10, SK-832 32 Bratislava, Slovak Republic.
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Tamama K. Dilute and shoot approach for toxicology testing. Front Chem 2023; 11:1278313. [PMID: 38146427 PMCID: PMC10749341 DOI: 10.3389/fchem.2023.1278313] [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: 08/16/2023] [Accepted: 11/27/2023] [Indexed: 12/27/2023] Open
Abstract
Toxicology testing is performed in clinical settings, forensic settings, and for controlling doping. Drug screening is a toxicology test to determine if drugs are present in biological samples. The most common specimen type for drug testing is urine, as drugs and/or their metabolites are often more concentrated in the urine, extending the detection window of drugs. The dilute-and-shoot method is a simple procedure used in toxicology testing, where a sample is diluted before being directly injected into the liquid chromatography-mass spectrometry (LC-MS) system. This method is easy, quick, and cost-saving, and can be used for protein-poor liquid specimens such as urine. Thus, it is reasonable and attractive for busy toxicology laboratories to combine the dilute-and-shoot method with high-resolution hyphenated-MS for urine drug screening. This method has several disadvantages, including a suboptimal detection capability for certain analytes, as well as interference from co-eluting matrix components called matrix effects, in which co-eluting matrix molecules alter the ionization efficiency of the analyte molecules at the ionization source in LC-MS, altering (mostly reducing) the analyte detection capability. The matrix effect testing is essential for the validation of LC-MS-based assays. A reasonable approach to addressing these undesirable effects would be to minimize these components. The most straightforward approach is to reduce the amounts of matrix components by using a higher dilution of the specimen and a lower volume for specimen injection. Optimization of the chromatographic separation is another reasonable approach for reducing co-eluting matrix components with the analyte.
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Affiliation(s)
- Kenichi Tamama
- Clinical Laboratories, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, United States
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Lobo MD, Rull G, Saxena M, Kapil V. Selecting patients for interventional procedures to treat hypertension. Blood Press 2023; 32:2248276. [PMID: 37665430 DOI: 10.1080/08037051.2023.2248276] [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: 06/20/2023] [Revised: 08/08/2023] [Accepted: 08/10/2023] [Indexed: 09/05/2023]
Abstract
Purpose: Interventional approaches to treat hypertension are an emerging option that may be suitable for patients whose BP control cannot be achieved with lifestyle and/or pharmacotherapy and possibly for those who do not wish to take drug therapy.Materials and Methods: Interventional strategies include renal denervation with radiofrequency, ultrasound and alcohol-mediated platforms as well as baroreflex activation therapy and cardiac neuromodulation therapy. Presently renal denervation is the most advanced of the therapeutic options and is currently being commercialised in the EU.Results: It is apparent that RDN is effective in both unmedicated patients and patients with more severe hypertension including those with resistant hypertension.Conclusion: However, at present there is no evidence for the use of RDN in patients with secondary forms of hypertension and thus evaluation to rule these out is necessary before proceeding with a procedure. Furthermore, there are numerous pitfalls in the diagnosis and management of secondary hypertension which need to be taken into consideration. Finally, prior to performing an intervention it is appropriate to document presence/absence of hypertension-mediated organ damage.
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Affiliation(s)
- Melvin D Lobo
- William Harvey Research Institute, Barts NIHR Biomedical Research Centre, Queen Mary University of London, London, UK
| | - Gurvinder Rull
- William Harvey Research Institute, Barts NIHR Biomedical Research Centre, Queen Mary University of London, London, UK
| | - Manish Saxena
- William Harvey Research Institute, Barts NIHR Biomedical Research Centre, Queen Mary University of London, London, UK
| | - Vikas Kapil
- William Harvey Research Institute, Barts NIHR Biomedical Research Centre, Queen Mary University of London, London, UK
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Zhang H, Yang Y, Jiang Y, Zhang M, Xu Z, Wang X, Jiang J. Mass Spectrometry Analysis for Clinical Applications: A Review. Crit Rev Anal Chem 2023:1-20. [PMID: 37910438 DOI: 10.1080/10408347.2023.2274039] [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: 11/03/2023]
Abstract
Mass spectrometry (MS) has become an attractive analytical method in clinical analysis due to its comprehensive advantages of high sensitivity, high specificity and high throughput. Separation techniques coupled MS detection (e.g., LC-MS/MS) have shown unique advantages over immunoassay and have developed as golden criterion for many clinical applications. This review summarizes the characteristics and applications of MS, and emphasizes the high efficiency of MS in clinical research. In addition, this review also put forward further prospects for the future of mass spectrometry technology, including the introduction of miniature MS instruments, point-of-care detection and high-throughput analysis, to achieve better development of MS technology in various fields of clinical application. Moreover, as ambient ionization mass spectrometry (AIMS) requires little or no sample pretreatment and improves the flux of MS, this review also summarizes its potential applications in clinic.
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Affiliation(s)
- Hong Zhang
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, P. R. China
| | - Yali Yang
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, P. R. China
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, P. R. China
| | - Yanxiao Jiang
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, P. R. China
| | - Meng Zhang
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, P. R. China
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, P. R. China
| | - Zhilong Xu
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, P. R. China
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, P. R. China
| | - Xiaofei Wang
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, P. R. China
| | - Jie Jiang
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, P. R. China
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, P. R. China
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Sharma JR, Dludla PV, Dwivedi G, Johnson R. Measurement Tools and Utility of Hair Analysis for Screening Adherence to Antihypertensive Medication. Glob Heart 2023; 18:17. [PMID: 36968302 PMCID: PMC10038111 DOI: 10.5334/gh.1191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 02/16/2023] [Indexed: 03/29/2023] Open
Abstract
Poor adherence to the prescribed antihypertensive therapy is an understated public health problem and is one of the main causes of the high prevalence of uncontrolled hypertension in sub-Saharan Africa. Medication adherence is vital for the effectiveness of antihypertensive treatment and is key to ameliorating the clinical outcomes in hypertensive patients. However, it has often been ignored because the current methods used to assess medication adherence are not reliable, limiting their utilization in clinical practice. Therefore, the identification of the most accurate and clinically feasible method for measuring medication adherence is critical for tailoring effective strategies to improve medication adherence and consequently achieve blood pressure goals. This review not only explores various available methods for estimating medication adherence but also proposes therapeutic drug monitoring in hair for the measurement of medication adherence to the antihypertensive medication period.
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Affiliation(s)
- Jyoti R. Sharma
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa
| | - Phiwayinkosi V. Dludla
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa
| | - Girish Dwivedi
- Medical School, University of Western Australia, Harry Perkins Institute of Medical Sciences, Fiona Stanley Hospital, Verdun Street, Nedlands WA, 6009, Australia
| | - Rabia Johnson
- Biomedical Research and Innovation Platform, South African Medical Research Council, Tygerberg 7505, South Africa
- Centre for Cardio-Metabolic Research in Africa, Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg 7505, South Africa
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Xiaoyong X, Xilin G, Guangfei W, Wei W, Xiaowen Z, Hong X, Huimin Z, Zhiping L. Reliability and feasibility of home-based dried blood spot in therapeutic drug monitoring: a systematic review and meta-analysis. Eur J Clin Pharmacol 2023; 79:183-193. [PMID: 36469108 DOI: 10.1007/s00228-022-03417-9] [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: 07/12/2022] [Accepted: 11/05/2022] [Indexed: 12/12/2022]
Abstract
PURPOSE Dried blood spot (DBS) is one of promising home sampling methods for therapeutic drug monitoring (TDM). However, the associated reliability and feasibility (including yield, adherence, and preference), which are criteria for the promotion of home-based DBS, remain unknown. This systematic review and meta-analysis aimed to evaluate the reliability and feasibility of TDM using DBS sampling. METHODS In this study, a combination of MeSH and free terms for (dried blood spot*[title/abstract])AND ("Drug Monitoring"[Mesh])AND(home OR venous)was surveyed using EMBASE, PubMed, Cochrane Library, and Web of Science upon gathering published. we registered this study protocol with the International Prospective Registry of Systematic Reviews (CRD42021247559). RESULTS Approximately half (35/75) of the evaluations reported good agreement between DBS and plasma, and the results for drugs with poor agreement may be improved using a haematocrit-based physiological equation. The yield and adherence to home-based DBS exceeded 87%, and questionnaire-based preference for DBS was 77%. CONCLUSIONS DBS may be a reliable and feasible home sampling method; however, it requires intricate design and evaluation before implementation.
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Affiliation(s)
- Xu Xiaoyong
- Department of Clinical Pharmacy, Children's Hospital of Fudan University, National Children's Medical Center, No. 399 Wanyuan Road, Shanghai, 201102, China
| | - Ge Xilin
- Department of Clinical Pharmacy, Children's Hospital of Fudan University, National Children's Medical Center, No. 399 Wanyuan Road, Shanghai, 201102, China
| | - Wang Guangfei
- Department of Clinical Pharmacy, Children's Hospital of Fudan University, National Children's Medical Center, No. 399 Wanyuan Road, Shanghai, 201102, China
| | - Wu Wei
- Department of Clinical Pharmacy, Children's Hospital of Fudan University, National Children's Medical Center, No. 399 Wanyuan Road, Shanghai, 201102, China
| | - Zhai Xiaowen
- Department of Hematology and Oncology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102, China
| | - Xu Hong
- Department of Nephrology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai, 201102, China
| | - Zhang Huimin
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, 210009, People's Republic of China
| | - Li Zhiping
- Department of Clinical Pharmacy, Children's Hospital of Fudan University, National Children's Medical Center, No. 399 Wanyuan Road, Shanghai, 201102, China.
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Wata D, Ogwu J, Dunford L, Lawson G, Tanna S. Utilizing quantitative dried blood spot analysis to objectively assess adherence to cardiovascular pharmacotherapy among patients at Kenyatta National Hospital, Nairobi, Kenya. PLoS One 2023; 18:e0280137. [PMID: 36662714 PMCID: PMC9858374 DOI: 10.1371/journal.pone.0280137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 12/20/2022] [Indexed: 01/21/2023] Open
Abstract
The burden of cardiovascular disease (CVD) is rising in Kenya and non-adherence to cardiovascular pharmacotherapy is a growing global public health issue that leads to treatment failure, an increased risk of cardiac events and poor clinical outcomes. This study assessed adherence to selected cardiovascular therapy medications among CVD patients attending outpatient clinics at Kenyatta National Hospital, Kenya by determining drug concentration(s) in patient dried blood spot (DBS) samples. Patients who had been taking one or more of the five commonly prescribed CVD medications (amlodipine, atenolol, atorvastatin, losartan, and valsartan) for at least six months were enrolled. Each patient completed a short questionnaire about their medication history and then provided a finger-prick blood spot sample from which drug concentrations were determined by liquid chromatography-high resolution mass spectrometry analysis. Two hundred and thirty-nine patients (62.3% female) participated in the study. The median number of medications used by patients was 2 (IQR 75%-25% is 3-1). Less than half (117; 49.0%) of patients were adherent to their prescribed CVD pharmacotherapy. Binary regression analysis revealed a significant correlation between non-adherence and the number of medications in the treatment regimen (Odds Ratio (OR) 1.583; 95%CI: 0.949-2.639; P-value = 0.039) and that gender was not an independent predictor of medication adherence (OR 1.233; 95%CI: 0.730-2.083; P-value = 0.216). Valuable information about adherence to each medication in the patient's treatment regimen was obtained using quantitative DBS analysis showing that adherence to CVD medications was not uniform. DBS sampling, due its minimally invasive nature, convenience and ease of transport is a useful alternative matrix to monitor adherence to pharmacotherapies objectively, when combined with hyphenated mass spectrometry analytical techniques. This information can provide physicians with an evidence-based novel approach towards personalization and optimization of CVD pharmacotherapy and implementing interventions in the Kenyan population, thereby improving clinical outcomes.
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Affiliation(s)
- David Wata
- Department of Pharmacy, Kenyatta National Hospital, Nairobi, Kenya
| | - John Ogwu
- Faculty of Health and Life Sciences, Leicester School of Pharmacy, De Montfort University, Leicester, United Kingdom
| | - Louise Dunford
- Faculty of Health and Life Sciences, Leicester School of Allied Health, De Montfort University, Leicester, United Kingdom
| | - Graham Lawson
- Faculty of Health and Life Sciences, Leicester School of Pharmacy, De Montfort University, Leicester, United Kingdom
| | - Sangeeta Tanna
- Faculty of Health and Life Sciences, Leicester School of Pharmacy, De Montfort University, Leicester, United Kingdom
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Solvent bar microextraction combined with HPLC-DAD and multivariate optimization for simultaneous determination of three antiarrhythmic drugs in human urine and plasma samples. TALANTA OPEN 2022. [DOI: 10.1016/j.talo.2022.100140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Yang S, Tian X, Chen Y, Shen L, Wang J. Isotope-dilution liquid chromatography-tandem mass spectrometry method for serum beta 2-microglobulin quantification. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1211:123487. [DOI: 10.1016/j.jchromb.2022.123487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 09/23/2022] [Accepted: 09/29/2022] [Indexed: 10/31/2022]
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Interest of high-resolution mass spectrometry in analytical toxicology: Focus on pharmaceuticals. TOXICOLOGIE ANALYTIQUE ET CLINIQUE 2022. [DOI: 10.1016/j.toxac.2021.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Monitoring Antihypertensive Medication Adherence by LC-MS/MS: Method Establishment and Clinical Application. J Cardiovasc Pharmacol 2021; 78:581-596. [PMID: 34269698 DOI: 10.1097/fjc.0000000000001105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 06/26/2021] [Indexed: 11/27/2022]
Abstract
ABSTRACT Proper medication compliance is critical for the integrity of clinical practice, directly related to the success of clinical trials to evaluate both pharmacological and device-based therapies. Here, we established a liquid chromatography tandem mass spectrometry (LC-MS/MS) method to accurately detect 55 chemical entities in human urine sample, which accounting for the most commonly used 172 antihypertensive drugs in China. The established method had good accuracy, intra-day and inter-day precision for all analyses in both bench tests and validated in 21 hospitalized patients. We utilized this method to monitor and ensure drug compliance, and exclude the inferring impacts of medication compliance as a key confounder for our pivotal trial of a catheter-based, renal mapping and selective renal denervation to treat hypertension. It is found that in the urine samples from 92 consecutive subjects, 85 subjects (92.4%) were consistent with their prescriptions after 28 days run-in periods, 90 (97.8%) and 85 (95.5%) patients completely complied with their medications during the 3-month and 6-month follow-up period, respectively. Thus, using LC-MS/MS method with specificity, accuracy and precision, we ensured drug compliance of patients, excluded the key confounder of drug interferences and ensured the quality of our device-based clinical trial for treatment of hypertension.
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Alalaqi A, Lawson G, Obaid Y, Tanna S. Adherence to cardiovascular pharmacotherapy by patients in Iraq: A mixed methods assessment using quantitative dried blood spot analysis and the 8-item Morisky Medication Adherence Scale. PLoS One 2021; 16:e0251115. [PMID: 33989336 PMCID: PMC8121290 DOI: 10.1371/journal.pone.0251115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 04/20/2021] [Indexed: 01/29/2023] Open
Abstract
This study evaluated the adherence to prescribed cardiovascular therapy medications among cardiovascular disease patients attending clinics in Misan, Amara, Iraq. Mixed methods were used to assess medication adherence comprising the Arabic version of the eight-item Morisky Medication Adherence Scale (MMAS-8) and determination of drug concentrations in patient dried blood spot (DBS) samples by liquid chromatography-high resolution mass spectrometry. Three hundred and three Iraqi patients (median age 53 years, 50.5% female) who had been taking one or more of the nine commonly prescribed cardiovascular medications (amlodipine, atenolol, atorvastatin, bisoprolol, diltiazem, lisinopril, losartan, simvastatin and valsartan) for at least six months were enrolled. For each patient MMAS-8 scores were determined alongside drug concentrations in their dried blood spot samples. Results from the standardized questionnaire showed that adherence was 81.8% in comparison with 50.8% obtained using the laboratory-based microsample analysis. The agreement between the indirect (MMAS-8) and direct (DBS analysis) assessment approaches to assessing medication adherence showed significantly poor agreement (kappa = 0.28, P = 0.001). The indirect and direct assessment approaches showed no significant correlation between nonadherence to prescribed cardiovascular pharmacotherapy and age and gender, but were significantly associated with the number of medications in the patient's treatment regimen (MMAS-8: Odds Ratio (OR) 1.947, 95% CI, P = 0.001; DBS analysis: OR 2.164, 95% CI, P = 0.001). The MMAS-8 results highlighted reasons for nonadherence to prescribed cardiovascular pharmacotherapy in this patient population whilst the objective DBS analysis approach gave valuable information about nonadherence to each medication in the patient's treatment regimen. DBS sampling, due its minimally invasive nature, convenience and ease of transport is a useful alternative matrix to monitor adherence objectively in Iraq to cardiovascular pharmacotherapy. This information combined with MMAS-8 can provide clinicians with an evidence-based novel approach to implement intervention strategies to optimise and personalise cardiovascular pharmacotherapy in the Iraqi population and thereby improve patient health outcomes.
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Affiliation(s)
- Ahmed Alalaqi
- Leicester School of Pharmacy, Faculty of Health and Life Sciences, De Montfort University, Leicester, United Kingdom
| | - Graham Lawson
- Leicester School of Pharmacy, Faculty of Health and Life Sciences, De Montfort University, Leicester, United Kingdom
| | - Yaseen Obaid
- University of Misan, College of Medicine, Misan, Amara, Iraq
| | - Sangeeta Tanna
- Leicester School of Pharmacy, Faculty of Health and Life Sciences, De Montfort University, Leicester, United Kingdom
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Ma Q, Qi C, Li XL, Shi Q, Xu CY, Jin T, Min JZ. Simultaneous determination of DL-cysteine, DL-homocysteine, and glutathione in saliva and urine by UHPLC-Q-Orbitrap HRMS: Application to studies of oxidative stress. J Pharm Biomed Anal 2021; 196:113939. [PMID: 33578266 DOI: 10.1016/j.jpba.2021.113939] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 12/25/2020] [Accepted: 01/25/2021] [Indexed: 12/18/2022]
Abstract
A high-sensitivity and -selectivity mass spectrometry derivatization reagent, (R)-(5-(3-isothiocyanatopyrrolidin-1-yl)-5-oxopentyl) triphenylphosphonium (NCS-OTPP), was developed for the enantiomeric separation of chiral thiol compounds as prospectively important diagnostic markers for oxidative stress-related diseases. Complete separation of GSH, DL-Cys, and DL-Hcy was achieved. The parent ions of all derivatives had a fragment of m/z 473.18 and a structure of m/z 75.95 (R-S = C-S-R'), conducive to qualitative and quantitative analysis. Good linear relationships were obtained for all analytes (R2≥ 0.9995). The intra-day and inter-day precision were 0.82-5.16 % and 1.02-4.18 % in saliva, and 0.81-3.45 % and 0.99-6.47 % in urine, with mean recoveries of 83.31-105.66 % and 84.09-101.11 %, respectively. The limit of detection (S/N = 3) was 19.20-57.60 nM. Free and total GSH, DL-Cys, and DL-Hcy were detected simultaneously in saliva and urine from 10 volunteers in the normal, stressed, and stable states by UHPLC-Q-Orbitrap HRMS. The thiol compounds were quantitatively related to oxidative stress state changes.
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Affiliation(s)
- Qingkun Ma
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Pharmaceutical Analysis, College of Pharmacy Yanbian University, and Department of Pharmacy, Department of General Surgery Yanbian University Hospital, Yanji, 133002, Jilin Province, China
| | - Chao Qi
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Pharmaceutical Analysis, College of Pharmacy Yanbian University, and Department of Pharmacy, Department of General Surgery Yanbian University Hospital, Yanji, 133002, Jilin Province, China
| | - Xi-Ling Li
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Pharmaceutical Analysis, College of Pharmacy Yanbian University, and Department of Pharmacy, Department of General Surgery Yanbian University Hospital, Yanji, 133002, Jilin Province, China
| | - Qing Shi
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Pharmaceutical Analysis, College of Pharmacy Yanbian University, and Department of Pharmacy, Department of General Surgery Yanbian University Hospital, Yanji, 133002, Jilin Province, China
| | - Chun-Yan Xu
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Pharmaceutical Analysis, College of Pharmacy Yanbian University, and Department of Pharmacy, Department of General Surgery Yanbian University Hospital, Yanji, 133002, Jilin Province, China
| | - Toufeng Jin
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Pharmaceutical Analysis, College of Pharmacy Yanbian University, and Department of Pharmacy, Department of General Surgery Yanbian University Hospital, Yanji, 133002, Jilin Province, China.
| | - Jun Zhe Min
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Pharmaceutical Analysis, College of Pharmacy Yanbian University, and Department of Pharmacy, Department of General Surgery Yanbian University Hospital, Yanji, 133002, Jilin Province, China.
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Biological Applications for LC-MS-Based Proteomics. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1336:17-29. [PMID: 34628625 DOI: 10.1007/978-3-030-77252-9_2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Since its inception, liquid chromatography-mass spectrometry (LC-MS) has been continuously improved upon in many aspects, including instrument capabilities, sensitivity, and resolution. Moreover, the costs to purchase and operate mass spectrometers and liquid chromatography systems have decreased, thus increasing affordability and availability in sectors outside of academic and industrial research. Processing power has also grown immensely, cutting the time required to analyze samples, allowing more data to be feasibly processed, and allowing for standardized processing pipelines. As a result, proteomics via LC-MS has become popular in many areas of biological sciences, forging an important seat for itself in targeted and untargeted assays, pure and applied science, the laboratory, and the clinic. In this chapter, many of these applications of LC-MS-based proteomics and an outline of how they can be executed will be covered. Since the field of personalized medicine has matured alongside proteomics, it has also come to rely on various mass spectrometry methods and will be elaborated upon as well. As time goes on and mass spectrometry evolves, there is no doubt that its presence in these areas, and others, will only continue to grow.
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Kably B, Billaud EM, Boutouyrie P, Azizi M. Is there any Hope for Monitoring Adherence in an Efficient and Feasible Way for Resistant Hypertension Diagnosis and Follow-Up? Curr Hypertens Rep 2020; 22:96. [PMID: 33052474 DOI: 10.1007/s11906-020-01105-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/08/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE OF REVIEW Non-adherence to antihypertensive treatment is highly prevalent and represents a major factor affecting their effectiveness in hypertensive patients, thus contributing to apparent treatment resistance. It is however often overlooked because the methods to assess non-adherence are mainly subjective, limiting their usefulness in clinical practice. Non-adherence to treatment affects daily patient management, resulting in inappropriate, costly, and potentially harmful treatments and loss of the expected benefits from antihypertensive drugs. RECENT FINDINGS Specialized centers now use a combination of objective screening tools. Firstly, snapshots of adherence levels can be provided by analytical drug detection in various biological matrixes using liquid chromatography-tandem mass spectrometry (LC-MS/MS) and secondly electronic monitoring systems of drug delivery which provide longitudinal data on adherence. Routine utilization of those tools allows the detection of non-adherence in patients with resistant hypertension, thus enabling implementation of appropriate interventions to improve drug adherence and avoid unnecessary treatment intensification. Other complementary techniques, such as digital health feedback system with ingestible sensors, are currently evaluated. In the context of an increasing burden of uncontrolled and apparent treatment-resistant hypertension, detecting non-adherence to antihypertensive therapy is, as acknowledged by the latest guidelines, a top priority to implement in clinical practice but still faces medical conservatism and disbelief.
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Affiliation(s)
- Benjamin Kably
- Université de Paris, F-75006, Paris, France
- Pharmacology Unit, AP-HP, Hôpital Européen Georges Pompidou, F-75015, Paris, France
- Inserm U970, Paris Centre de Recherche Cardiovasculaire-PARCC, F-75015, Paris, France
| | - Eliane M Billaud
- Pharmacology Unit, AP-HP, Hôpital Européen Georges Pompidou, F-75015, Paris, France
- Inserm U970, Paris Centre de Recherche Cardiovasculaire-PARCC, F-75015, Paris, France
| | - Pierre Boutouyrie
- Université de Paris, F-75006, Paris, France
- Pharmacology Unit, AP-HP, Hôpital Européen Georges Pompidou, F-75015, Paris, France
- Inserm U970, Paris Centre de Recherche Cardiovasculaire-PARCC, F-75015, Paris, France
| | - Michel Azizi
- Université de Paris, F-75006, Paris, France.
- Hypertension Unit, DMU CARTE, AP-HP, Hôpital Européen Georges Pompidou, F-75015, Paris, France.
- Inserm, CIC 1418, F-75015, Paris, France.
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Heaney LM. Advancements in mass spectrometry as a tool for clinical analysis: Part I. ACTA ACUST UNITED AC 2020; 58:639-642. [DOI: 10.1515/cclm-2020-0199] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Liam M. Heaney
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, LE11 3TU, UK
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