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Farquharson S, Shende C, Newcomb J, Petrakis IL, Arias AJ. Analysis of Drugs in Saliva of US Military Veterans Treated for Substance Use Disorders Using Supported Liquid Extraction and Surface-Enhanced Raman Spectral Analysis. Molecules 2023; 28:2010. [PMID: 36903255 PMCID: PMC10004423 DOI: 10.3390/molecules28052010] [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: 01/29/2023] [Revised: 02/11/2023] [Accepted: 02/14/2023] [Indexed: 02/23/2023] Open
Abstract
According to the Center for Disease Control, there were more than 107,000 US drug overdose deaths in 2021, over 80,000 of which due to opioids. One of the more vulnerable populations is US military veterans. Nearly 250,000 military veterans suffer from substance-related disorders (SRD). For those seeking treatment, buprenorphine is prescribed to help treat opioid use disorder (OUD). Urinalysis is currently used to monitor buprenorphine adherence as well as to detect illicit drug use during treatment. Sometimes sample tampering occurs if patients seek to generate a false positive buprenorphine urine test or mask illicit drugs, both of which can compromise treatment. To address this problem, we have been developing a point-of-care (POC) analyzer that can rapidly measure both medications used for treatment and illicit drugs in patient saliva, ideally in the physi-cian's office. The two-step analyzer employs (1) supported liquid extraction (SLE) to isolate the drugs from the saliva and (2) surface-enhanced Raman spectroscopy (SERS) to detect the drugs. A prototype SLE-SERS-POC analyzer was used to quantify buprenorphine at ng/mL concentrations and identify illicit drugs in less than 1 mL of saliva collected from 20 SRD veterans in less than 20 min. It correctly detected buprenorphine in 19 of 20 samples (18 true positives, 1 true negative and 1 false negative). It also identified 10 other drugs in patient samples: acetaminophen, amphetamine, cannabidiol, cocaethylene, codeine, ibuprofen, methamphetamine, methadone, nicotine, and norbuprenorphine. The prototype analyzer shows evidence of accuracy in measuring treatment medications and relapse to drug use. Further study and development of the system is warranted.
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Affiliation(s)
| | - Chetan Shende
- Real-Time Analyzers, Inc., Middletown, CT 06457, USA
| | - Jenelle Newcomb
- VA Connecticut Healthcare System, West Haven, CT 06516, USA
- Department of Psychiatry, School of Medicine, Yale University, New Haven, CT 06510, USA
| | - Ismene L. Petrakis
- VA Connecticut Healthcare System, West Haven, CT 06516, USA
- Department of Psychiatry, School of Medicine, Yale University, New Haven, CT 06510, USA
| | - Albert J. Arias
- VA Connecticut Healthcare System, West Haven, CT 06516, USA
- Department of Psychiatry, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
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Nieddu M, Baralla E, Pasciu V, Rimoli MG, Boatto G. Cross-reactivity of commercial immunoassays for screening of new amphetamine designer drugs. A review. J Pharm Biomed Anal 2022; 218:114868. [DOI: 10.1016/j.jpba.2022.114868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 05/03/2022] [Accepted: 05/30/2022] [Indexed: 11/16/2022]
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Dermanowski MM, Hejduk A, Kuczyńska J, Wichniak A, Urbańska A, Mierzejewski P. Assessment of dim light melatonin onset based on plasma and saliva samples. Chronobiol Int 2022; 39:626-635. [PMID: 35168448 DOI: 10.1080/07420528.2021.2016796] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Melatonin (MELA) is a nocturnal hormone involved in the regulation of the circadian rhythm. MELA can be detected in plasma and saliva, and its salivary concentration strongly correlates with its plasma concentration. Dim light melatonin onset (DLMO) is considered to be the most accurate objective marker for assessing the circadian phase. The purpose of the study was to establish a method for the determination of MELA in plasma and saliva based on the liquid chromatography with tandem mass spectrometry (LC-MS/MS) and compare DLMO using both plasma and saliva matrices. The validation of the LC-MS/MS methods was performed in accordance with the European Medicines Agency (EMA) guideline. The study was conducted on a group of 21 volunteers, male and females, aged 26-54 years. Plasma and saliva were collected at five time points: between 20:00 and 00:00 hours. The MELA concentration was determined by the LC-MS/MS. The DLMO was considered as the point in time when MELA concentration exceeds 20 pg/mL in plasma and 7 pg/mL in saliva. The correlation coefficient between the plasma and salivary MELA concentration was r = 0.764 (p < .001). The ratio of the plasma/saliva MELA concentrations was 2.87. The mean time of the DLMO in the plasma was 21:30 ± 0:45 hours, and in the saliva was as follows: 21:34 ± 1:00 hours. The correlation between the DLMO, calculated based on the plasma and saliva MELA profiles, was r = 0.679 (p < .05). The determination of salivary MELA concentration using LC-MS/MS allows for the determination of the DLMO. Our method may be applied in clinical practice for the diagnosis and monitoring of circadian rhythm disorders.Abbreviations: CE: Collision Energy; CID: Collision-Induced Dissociation; DL: Desolvation Module; DLMO: Dim Light Melatonin Onset; EFSA: European Food Safety Authority; EMA: European Medicines Agency; ESI: electrospray ionization; HB: heat block; HPLC: high performance liquid chromatography; IS: internal standard; K3EDTA: ethylenediaminetetraacetic acid tripotassium salt; LC-MS/MS: liquid chromatography with tandem mass spectrometry; LLE: liquid-liquid extraction; LLOQ: lower limit of quantification; MELA: melatonin; MELA-D4: melatonin-d4; MRM: multiple reaction monitoring; Q1: quadrupole 1; Q3: quadrupole 3; RE: relative error; RIA: radioimmunoassay; RSD: relative standard deviation; SD: standard deviation; ULOQ: upper limit of quantification.
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Affiliation(s)
| | - Arkadiusz Hejduk
- Chair and Department of Pharmaceutical Technology, Faculty of Pharmacy, Poznan University of Medical Sciences, Poznan, Poland.,Research and Development Department, LEK-AM Pharmaceutical Company Ltd, Zakroczym, Poland
| | - Julita Kuczyńska
- Department of Pharmacology, Institute of Psychiatry and Neurology, Warsaw, Poland
| | - Adam Wichniak
- Third Department of Psychiatry, Institute of Psychiatry and Neurology, Warsaw, Poland
| | - Agnieszka Urbańska
- Research and Development Department, LEK-AM Pharmaceutical Company Ltd, Zakroczym, Poland
| | - Paweł Mierzejewski
- Department of Pharmacology, Institute of Psychiatry and Neurology, Warsaw, Poland
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Shishkanova TV, Pospíšilová E, Prokopec V. Screening of Synthetic Cathinones by Potentiometric Sensor Array and Chemometrics. ELECTROANAL 2022. [DOI: 10.1002/elan.202100483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Tatiana V. Shishkanova
- Department of Analytical Chemistry University of Chemistry and Technology Technická 5 16628 Prague 6 Czech Republic
| | - Eva Pospíšilová
- Department of Analytical Chemistry University of Chemistry and Technology Technická 5 16628 Prague 6 Czech Republic
| | - Vadim Prokopec
- Department of Analytical Chemistry University of Chemistry and Technology Technická 5 16628 Prague 6 Czech Republic
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Molecularly imprinted polymers as a selective sorbent for forensic applications in biological samples-a review. Anal Bioanal Chem 2021; 413:6013-6036. [PMID: 34430982 DOI: 10.1007/s00216-021-03596-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 07/14/2021] [Accepted: 08/02/2021] [Indexed: 01/09/2023]
Abstract
Molecularly imprinted polymers (MIP) consist of a molecular recognition technology with applicability in different areas, including forensic chemistry. Among the forensic applications, the use of MIP in biological fluid analysis has gained prominence. Biological fluids are complex samples that generally require a pre-treatment to eliminate interfering agents to improve the results of the analyses. In this review, we address the development of this molecular imprinting technology over the years, highlighting the forensic applications of molecularly imprinted polymers in biological sample preparation for analysis of stimulant drugs such as cocaine, amphetamines, and nicotine.
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Avcioglu G, Yilmaz G, Yalcin Sahiner S, Kozaci LD, Bal C, Yilmaz FM. Evaluation of the diagnostic performance of an oral fluid screening test device for substance abuse at traffic controls. Clin Biochem 2021; 93:112-118. [PMID: 33882283 DOI: 10.1016/j.clinbiochem.2021.04.009] [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: 06/28/2020] [Revised: 03/22/2021] [Accepted: 04/03/2021] [Indexed: 11/26/2022]
Abstract
INTRODUCTION The aim of this study was to evaluate the analytical performance of the Kite Biotechnology Oral fluid (OF) screening test device, which is used for roadside screening of cannabis, opiates, amphetamines, methamphetamine, 3,4-methylenedioxymethamphetamine (MDMA), cocaine and benzodiazepines by comparing samples with matched plasma samples, analysed via liquid chromatography-tandem mass spectrometry (LC-MS/MS) for confirmation. METHODS OF and plasma samples were obtained simultaneously from a total of 100 subjects. OF samples were analysed by OF screening test based on immunochromatography. The OF screening test cut-off values were 50 ng/mL for amphetamines (d-amphetamine) and methamphetamine/MDMA (d-methamphetamine), 30 ng/mL for cocaine (benzoylecgonine), 40 ng/mL for opiates (morphine), 20 ng/mL for benzodiazepines (nordazepam), and 25 ng/mL for cannabis (Δ9-tetrahydrocannabinol). LC-MS/MS method validation was performed according to the CLSI C62-A recommendations with the following parameters: matrix effect, lower limit of quantification (LLOQ), linearity, intra-day and inter-day precision and accuracy. RESULTS The overall specificity, accuracy and negative predictive values (NPV) were acceptable and met the DRUID standard of >80%. The OF screening test device showed good sensitivity for cocaine, amphetamines and opiates, whereas it indicated poor sensitivity for methamphetamine/MDMA (66.7%) and failed to detect cannabis and benzodiazepines. CONCLUSION The present study is the first report to evaluate the Kite Biotechnology OF screening test device. The diagnostic performance of the OF screening test device was acceptable for opiates, cocaine and amphetamines, but it was insufficient for methamphetamine/MDMA, benzodiazepines and cannabis because of sensitivity issues.
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Affiliation(s)
- Gamze Avcioglu
- Department of Medical Biochemistry, Karadeniz Ereğli State Hospital, Zonguldak, Turkey.
| | - Gulsen Yilmaz
- Department of Medical Biochemistry, Ankara Yıldırım Beyazıt University Faculty of Medicine, Ankara, Turkey
| | | | - L Didem Kozaci
- Department of Medical Biochemistry, Ankara Yıldırım Beyazıt University Faculty of Medicine, Ankara, Turkey
| | - Ceylan Bal
- Department of Medical Biochemistry, Ankara Yıldırım Beyazıt University Faculty of Medicine, Ankara, Turkey
| | - Fatma Meric Yilmaz
- Department of Medical Biochemistry, Ankara Yıldırım Beyazıt University Faculty of Medicine, Ankara, Turkey
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Kahl JMM, da Cunha KF, Rodrigues LC, Chinaglia KDO, Oliveira KD, Costa JL. Quantification of amphetamine and derivatives in oral fluid by dispersive liquid-liquid microextraction and liquid chromatography-tandem mass spectrometry. J Pharm Biomed Anal 2021; 196:113928. [PMID: 33581589 DOI: 10.1016/j.jpba.2021.113928] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/17/2021] [Accepted: 01/22/2021] [Indexed: 12/23/2022]
Abstract
The abuse of stimulants such as amphetamine, methamphetamine, ecstasy (MDMA), and their analogues (MDEA and MDA) has been increasing considerably worldwide since 2009. In this work, an analytical method using dispersive liquid-liquid microextraction (DLLME) to determine amphetamine and derivatives in oral fluid samples by liquid chromatography-tandem mass spectrometry (LC-MS/MS) was developed and validated. Linearity was achieved between 20 to 5000 ng/mL (r>0.992, 1/x² weighted linear regression), with a limit of quantification (LOQ) of 20 ng/mL. Imprecision (%relative standard deviation) and bias (%) were not higher than 9.1 and -12.3%, respectively. The matrix effect was lower than 14.6%, with no carryover observed up to 5000 ng/mL and no interference with 10 different oral fluid matrix sources and against 14 pharmaceuticals and other common drugs of abuse. MDMA, MDA, and MDEA in processed samples were stable up to 24 h at autosampler (10°C); and amphetamine and methamphetamine up to 18 h. The developed method was successfully applied to authentic oral fluid analyses (n = 140). The proposed method is an example of the Green Analytical Toxicology, since it reduces both the amount of solvent required in samples preparation and the quantity of solvents and reagents used in analytical-instrumental stage, as well as requires a minimal sample volume, being a cheaper, quicker and more ecological alternative to conventional methods. Obtained results showed that DLLME extraction combined with LC-MS/MS is a fast and simple method to quantify amphetamine derivatives in oral fluid samples.
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Affiliation(s)
- Júlia Martinelli Magalhães Kahl
- Campinas Poison Control Center, University of Campinas (UNICAMP), Campinas, São Paulo, 13083-859, Brazil; Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, São Paulo, 13083-859, Brazil
| | - Kelly Francisco da Cunha
- Campinas Poison Control Center, University of Campinas (UNICAMP), Campinas, São Paulo, 13083-859, Brazil; Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, São Paulo, 13083-859, Brazil
| | - Leonardo Costalonga Rodrigues
- Campinas Poison Control Center, University of Campinas (UNICAMP), Campinas, São Paulo, 13083-859, Brazil; Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, São Paulo, 13083-859, Brazil
| | - Kauê de Oliveira Chinaglia
- Campinas Poison Control Center, University of Campinas (UNICAMP), Campinas, São Paulo, 13083-859, Brazil; Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, São Paulo, 13083-859, Brazil
| | - Karina Diniz Oliveira
- Campinas Poison Control Center, University of Campinas (UNICAMP), Campinas, São Paulo, 13083-859, Brazil; Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas, São Paulo, 13083-859, Brazil
| | - Jose Luiz Costa
- Campinas Poison Control Center, University of Campinas (UNICAMP), Campinas, São Paulo, 13083-859, Brazil; Faculty of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, São Paulo, 13083-859, Brazil.
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Sørensen LK, Hasselstrøm JB, Larsen LS, Bindslev DA. Entrapment of drugs in dental calculus - Detection validation based on test results from post-mortem investigations. Forensic Sci Int 2020; 319:110647. [PMID: 33341470 DOI: 10.1016/j.forsciint.2020.110647] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 11/30/2020] [Accepted: 12/03/2020] [Indexed: 11/26/2022]
Abstract
For prospective investigation of drugs and metabolites in archaeological and contemporary dental calculus, a sensitive, broadly applicable ultra-high-performance liquid chromatography-tandem mass spectrometry method using pneumatically assisted electrospray ionisation (UHPLC-ESI-MS/MS) was developed. The dental calculus was treated with citric acid and the dissolution extracts were cleaned using weak and strong polymeric cation-exchange sorbents. The method was validated on hydroxyapatite for the analysis of 67 drugs and metabolites. Typically, the lower limits of quantification were in the range of 0.01-0.05ng for the sample mass extracted. The general applicability of the method was tested using dental calculus material sampled from 10 corpses undergoing forensic autopsy. The calculus material was washed several times before dissolution to remove residual substances originating from saliva, gingival crevicular fluid and blood. The wash extracts and the calculus samples (cleaned calculus material) were analysed using the same instrumental conditions. The dry mass of the calculus samples ranged from 1 to 10mg. The total number of drug detections was 131 in the dental calculus samples and 117 in the whole blood samples. From the analyses of the wash extracts and calculus samples, it was proven that drug residues were trapped in the interior of the calculus material. In 82 of the drug detections, the drug concentrations were higher in the dental calculus than in the blood. Among substances detected in the dental calculus but not in the blood were cocaine, heroin, 6-MAM and THCA-A.
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Affiliation(s)
- Lambert K Sørensen
- Section for Forensic Chemistry, Department of Forensic Medicine, Aarhus University, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark.
| | - Jørgen B Hasselstrøm
- Section for Forensic Chemistry, Department of Forensic Medicine, Aarhus University, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
| | - Line S Larsen
- Section of Dental Pathology, Operative Dentistry and Endodontics, Health, Aarhus University, Vennelyst Boulevard 9, 8000, Aarhus C, Denmark
| | - Dorthe A Bindslev
- Section for Forensic Pathology, Department of Forensic Medicine, Aarhus University, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark
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Nordeck CD, Gryczynski J, O’Grady KE, Polak K, Svikis DS, McNeely J, Wu LT, Schwartz RP. Comparison of timeline follow-back self-report and oral fluid testing to detect substance use in adult primary care patients. Drug Alcohol Depend 2020; 209:107939. [PMID: 32114329 PMCID: PMC7360056 DOI: 10.1016/j.drugalcdep.2020.107939] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 01/09/2020] [Accepted: 02/19/2020] [Indexed: 11/17/2022]
Abstract
BACKGROUND Timeline Follow-back (TLFB) interviews using self-report are often used to assess substance use. Oral fluid testing (OFT) offers an objective measure of substance use. There are limited data on the agreement between TLFB and OFT. METHODS In this secondary analysis from a multisite study in five primary care sites, self-reported TLFB and OFT data collected under confidential conditions were compared to assess concordance (N=1799). OFT samples were analyzed for marijuana, heroin, cocaine, and non-medical use of prescription opioids. Demographic differences in discordance relative to TLFB and OFT concordant results for marijuana, the only substance with an adequate sample size in this analysis, were examined using multinomial logistic regression. RESULTS Overall concordance rates between TLFB and OFT were 94.9 % or higher for each substance, driven by large subgroups with no use. Among participants with discordant use, marijuana was the only substance with lower detection on OFT than self-report (27.6 % OFT-positive only vs 32.2 % TLFB-positive only), whereas cocaine (65.6 % vs 8.6 %), prescription opioids (90.4 % vs 6.0 %), and heroin (40.7 % vs 26.0 %) all had higher detection via OFT than TLFB. Participants who reported marijuana use but had a negative OFT were more likely to be younger, Hispanic, and White compared to those with TLFB and OFT concordant positive results. CONCLUSIONS TLFB and OFT show disparate detection of different substances. Researchers should consider the implications of using either self-report or oral fluid testing in isolation, depending on the substance and collection setting. Triangulating multiple sources of information may improve detection of drug use.
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Affiliation(s)
| | | | | | | | | | | | - Li-Tzy Wu
- Duke University School of Medicine, Durham, NC, USA
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Klimuntowski M, Alam MM, Singh G, Howlader MMR. Electrochemical Sensing of Cannabinoids in Biofluids: A Noninvasive Tool for Drug Detection. ACS Sens 2020; 5:620-636. [PMID: 32102542 DOI: 10.1021/acssensors.9b02390] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Cannabinoid sensing in biofluids provides great insight into the effects of medicinal cannabis on the body. The prevalence of cannabis for pain management and illicit drug use necessitates knowledge translation in cannabinoids. In this Review, we provide an overview of the current detection methods of cannabinoids in bodily fluids emphasizing electrochemical sensing. First, we introduce cannabinoids and discuss the structure and metabolism of Δ9-THC and its metabolites in relation to blood, urine, saliva, sweat, and breath. Next, we briefly discuss lab based techniques for cannabinoids in biofluids. While these techniques are highly sensitive and specific, roadside safety requires a quick, portable, and cost-effective sensing method. These needs motivated a comprehensive review of advantages, disadvantages, and future directions for electrochemical sensing of cannabinoids. The literature shows the lowest limit of detection to be 3.3 pg of Δ9-THC/mL using electrochemical immunosensors, while electrodes fabricated with low cost methods such as screen-printing and carbon paste can detect as little as 25 and 1.26 ng of Δ9-THC/mL, respectively. Future research will include nanomaterial modified working electrodes, for simultaneous sensing of multiple cannabinoids. Additionally, there should be an emphasis on selectivity for cannabinoids in the presence of interfering compounds. Sensors should be fully integrated on biocompatible substrates with control electronics and intelligent components for wearable diagnostics. We hope this Review will prove to be the seminal work in the electrochemical sensing of cannabinoids.
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Affiliation(s)
- Martin Klimuntowski
- Department of Electrical and Computer Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4K1, Canada
| | - Maksud M. Alam
- Department of Electrical and Computer Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4K1, Canada
| | - Gurmit Singh
- Department of Pathology and Molecular Medicine, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4L8, Canada
| | - Matiar M. R. Howlader
- Department of Electrical and Computer Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S 4K1, Canada
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Hayley AC, Green M, Keane M, Kostakis P, Shehabi Y, Stough CKK, Downey LA. Accuracy of the Securetec DrugWipe 6s Ketamine device in detecting acute and residual salivary ketamine following a stepwise intravenous treatment protocol. CANADIAN SOCIETY OF FORENSIC SCIENCE JOURNAL 2020. [DOI: 10.1080/00085030.2020.1724248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Amie C. Hayley
- Centre for Human Psychopharmacology, Swinburne University of Technology, Hawthorn, Australia
| | - Maja Green
- Bolton Clarke Research Institute, Melbourne, Australia
| | - Michael Keane
- Centre for Human Psychopharmacology, Swinburne University of Technology, Hawthorn, Australia
- Program of Critical Care and Perioperative Medicine, School of Clinical Sciences, Monash University, Melbourne, Australia
| | | | - Yahya Shehabi
- Program of Critical Care and Perioperative Medicine, School of Clinical Sciences, Monash University, Melbourne, Australia
| | - Con K. K. Stough
- Centre for Human Psychopharmacology, Swinburne University of Technology, Hawthorn, Australia
| | - Luke A. Downey
- Centre for Human Psychopharmacology, Swinburne University of Technology, Hawthorn, Australia
- Institute for Breathing and Sleep, Austin Hospital, Melbourne, Australia
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Hu Q, Wei Q, Zhang P, Li S, Xue L, Yang R, Wang C, Zhou L. An up-converting phosphor technology-based lateral flow assay for point-of-collection detection of morphine and methamphetamine in saliva. Analyst 2019; 143:4646-4654. [PMID: 30168551 DOI: 10.1039/c8an00651b] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Morphine (Mop) and methamphetamine (Met) are highly addictive drugs worldwide. Point-of-collection testing (POCT) for drug-of-abuse screening is important in abuse/rehabilitation clinics and law-enforcement agencies. We established an up-converting phosphor technology-based lateral flow assay (UPT-LFA) as a point-of-collection testing (POCT) method, namely Mop-UPT-LFA and Met-UPT-LFA, for the detection of morphine and methamphetamine without complicated sample pre-treatment, respectively, in saliva. The sensitivities of the Mop-UPT-LFA and the Met-UPT-LFA were 5 and 10 ng mL-1 with accurate quantitation of 5-100 ng mL-1 and 10-250 ng mL-1 for morphine and methamphetamine, respectively, for a detection time of 15 min. In reference to the detection limits of 20 and 25 ng mL-1 for morphine and methamphetamine, respectively, in the Driving Under the Influence of Drugs, Alcohol and Medicines (DRUID) program of the European Union, the percentage test/control (T/C) ratio of the UPT-LFA between 2 and 15 min reached 101% and 86%, and the UPT-LFA produced accurate qualitative results in 2 min for 100 simulated-saliva samples with the exception of a few weakly positive samples. The sample and sample treating buffer were mixed and added to the test strip, and the test was conducted 15 min later. Although we found no significant difference between the UPT-LFA quantitative test and the liquid chromatography tandem mass spectrometry (LC-MS) test, compared with the latter, the UPT-LFA was substantially faster and had higher detection efficiency. The UPT-LFA showed more accurate qualitative results than the LC-MS for 50 simulated-saliva samples. The ease of operation, high sensitivity, and accuracy of the UPT-LFA make it a valid candidate POCT method for drug-of-abuse screening.
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Affiliation(s)
- Qiushi Hu
- National Key Laboratory of Biochemical Engineering, PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.
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Arvidsson M, Ullah S, Franck J, Dahl ML, Beck O. Drug abuse screening with exhaled breath and oral fluid in adults with substance use disorder. Drug Test Anal 2018; 11:27-32. [DOI: 10.1002/dta.2384] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/08/2018] [Accepted: 03/10/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Michel Arvidsson
- Department of Laboratory Medicine, Division of Clinical Pharmacology, Karolinska Institutet; Karolinska University Hospital; Stockholm Sweden
| | - Shahid Ullah
- Department of Laboratory Medicine, Division of Clinical Pharmacology, Karolinska Institutet; Karolinska University Hospital; Stockholm Sweden
| | - Johan Franck
- Department of Clinical Neuroscience; Karolinska Institutet; Stockholm Sweden
| | - Marja-Liisa Dahl
- Department of Laboratory Medicine, Division of Clinical Pharmacology, Karolinska Institutet; Karolinska University Hospital; Stockholm Sweden
| | - Olof Beck
- Department of Laboratory Medicine, Division of Clinical Pharmacology, Karolinska Institutet; Karolinska University Hospital; Stockholm Sweden
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14
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Wolff K, Welch S, Strang J. Specific laboratory investigations for assessments and management of drug problems. ACTA ACUST UNITED AC 2018. [DOI: 10.1192/apt.5.3.180] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Much of the drug testing available today is able to determine the presence or absence of a variety of psychoactive substances in a range of body fluids and tissues. For the results of such tests to be confidently interpreted, additional information is required, including general assessment and history-taking. In a wide range of large psychiatric surveys, substance dependence emerges as one of the most common mental health-related disorders, and it is also the one that is least likely to be treated. The range of available tests can be best considered as acting to support and complement a broader assessment and diagnostic procedure.
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Busardò FP, Pichini S, Pellegrini M, Montana A, Lo Faro AF, Zaami S, Graziano S. Correlation between Blood and Oral Fluid Psychoactive Drug Concentrations and Cognitive Impairment in Driving under the Influence of Drugs. Curr Neuropharmacol 2018; 16:84-96. [PMID: 28847293 PMCID: PMC5771389 DOI: 10.2174/1570159x15666170828162057] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 08/09/2017] [Accepted: 08/24/2017] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The effects of drugs on driving performance should be checked with drug concentration in the brain and at the same time with the evaluation of both the behavioural and neurophysiological effects. The best accessible indicator of this information is the concentration of the drug and/or metabolites in blood and, to a certain extent, oral fluid. We sought to review international studies on correlation between blood and oral fluid drug concentrations, neurological correlates and cognitive impairment in driving under the influence of drugs. METHODS Relevant scientific articles were identified from PubMed, Cochrane Central, Scopus, Web of Science, Science Direct, EMBASE up to April 2017. RESULTS Up to 2010, no epidemiological studies were available on this matter and International scientists suggested that even minimal amounts of parent drugs in blood and oral fluid could affect driving impairment. More recently, epidemiological data, systematic reviews and meta-analysis on drugged drivers allowed the suggestion of impairment concentration limits for the most common illicit drugs. These values were obtained comparing driving disability induced by psychotropic drugs with that of established blood alcohol limits. Differently from ethyl alcohol where both detection methods and concentration limits have been well established even with inhomogeneity of ranges within different countries, in case of drugs of abuse no official cut-offs have yet been established, nor any standardized analytical protocols. CONCLUSION Multiple aspects of driving performance can be differently affected by illicit drugs, and even if for few of them some dose/concentration dependent impairment has been reported, a wider knowledge on concentration/impairment relationship is still missing.
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Affiliation(s)
- Francesco Paolo Busardò
- Unit of Forensic Toxicology (UoFT), Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University of Rome, Italy
| | - Simona Pichini
- National Centre on Addiction and Doping, Istituto Superiore di Sanità, Rome, Italy
| | - Manuela Pellegrini
- National Centre on Addiction and Doping, Istituto Superiore di Sanità, Rome, Italy
| | - Angelo Montana
- Department “G.F. Ingrassia” – University of Catania, Catania, Italy
| | | | - Simona Zaami
- Unit of Forensic Toxicology (UoFT), Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University of Rome, Italy
| | - Silvia Graziano
- National Centre on Addiction and Doping, Istituto Superiore di Sanità, Rome, Italy
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Chow ATY, Ng VCH, Lau FL. Can “Oral Fluid” be Used Instead of “Urine” for Rapid Screening of Drug of Abuse: A Prospective Pilot Study. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791502200502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Introduction Spot urine tests are commonly employed by emergency physicians in Hong Kong to detect recent abusive drug exposure. Spot tests utilising oral fluid are gaining its popularity in other parts of the world. There was lack of evidence about employment of rapid oral fluid test (ROFT) in the local emergency medical settings. The objective of this study is to determine the operating characteristics of ROFT, and to compare its agreement with the bedside urine immunoassay test (BUIT). Setting The emergency department and the substance abuse clinic of a regional hospital. Methods This was a single-centered cross-sectional study of diagnostic test. Patients suspected to have drug abuse were tested using either one or both of the commercially available ROFT and BUIT. The sensitivity, specificity and accuracy of both tests were calculated with reference to the laboratory urine toxicology screening results. The agreement between ROFT and BUIT was calculated. Results For the detection of ketamine and methamphetamine (the two most prevalent abusive substances), ROFT had 72-100% sensitivity and 93-100% specificity, which were comparable to that of BUIT (74-100% sensitivity and 100% specificity). The overall observed agreement of ROFT and BUIT results was at least 96%. There was good agreement between ROFT and BUIT with kappa values of 0.90-1.00. Conclusion In this pilot study, the operating characteristics of ROFT are comparable with that of BUIT, with both tests showing good agreements in the detection of ketamine and methamphetamine uses. ROFT can potentially be employed as an alternative investigation for rapid diagnosis of patients with suspected drug abuse. (Hong Kong j.emerg.med. 2015;22:265-269)
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Yu H, Hong S, Jeong CH, Bae JW, Lee S. Development of a linear dual column HPLC-MS/MS method and clinical genetic evaluation for tramadol and its phase I and II metabolites in oral fluid. Arch Pharm Res 2017; 41:288-298. [PMID: 29196917 DOI: 10.1007/s12272-017-0993-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 11/20/2017] [Indexed: 02/04/2023]
Abstract
Tramadol is a centrally acting synthetic opioid analgesic and has received special attention due to its abuse potential and unexpected responses induced by CYP2D6 polymorphism. Oral fluid is an advantageous biofluid for drug analysis due to non-invasive sampling and high correlation of drug concentrations with plasma. However, few studies have been performed on distribution of tramadol and its metabolites in oral fluid. In the present study, a linear dual column HPLC-MS/MS method was developed and fully validated for the simultaneous determination of tramadol and its phase I [O-desmethyltramadol (ODMT), N-desmethyltramadol (NDMT) and N,O-didesmethyltramadol (NODMT)] and II metabolites in oral fluid. Furthermore, the distribution of tramadol and its metabolites, in relation to CYP2D6 genetic variations, in oral fluid was investigated following a clinical study including 23 subjects with CYP2D6*wt/*wt, CYP2D6*10/*10 or CYP2D6*5/*5. The validation results of selectivity, matrix effect, linearity, precision and accuracy were satisfactory. Pharmacokinetic parameters, such as Css,max and AUC0-τ of tramadol, NDMT and NODMT, in the CYP2D6*10/*10 group were significantly higher than those in the CYP2D6*wt/*wt group. Moreover, the ratios of ODMT/tramadol, NDMT/tramadol and NODMT/NDMT correlated well with the CYP2D6 genotypes. We demonstrated that oral fluid is a promising biofluid for pharmacokinetic evaluation in relation to genetic variations.
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Affiliation(s)
- Hyerim Yu
- College of Pharmacy, Keimyung University, 1095 Dalgubeoldaero, Dalseo-gu, Daegu, 42601, Republic of Korea
| | - Seongkuk Hong
- College of Pharmacy, Keimyung University, 1095 Dalgubeoldaero, Dalseo-gu, Daegu, 42601, Republic of Korea
| | - Chul-Ho Jeong
- College of Pharmacy, Keimyung University, 1095 Dalgubeoldaero, Dalseo-gu, Daegu, 42601, Republic of Korea
| | - Jung-Woo Bae
- College of Pharmacy, Keimyung University, 1095 Dalgubeoldaero, Dalseo-gu, Daegu, 42601, Republic of Korea.
| | - Sooyeun Lee
- College of Pharmacy, Keimyung University, 1095 Dalgubeoldaero, Dalseo-gu, Daegu, 42601, Republic of Korea.
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Farquharson S, Dana K, Shende C, Gladding Z, Newcomb J, Dascher J, Petrakis IL, Arias AJ. Rapid Identification of Buprenorphine in Patient Saliva. ACTA ACUST UNITED AC 2017; 8. [PMID: 28944090 PMCID: PMC5604842 DOI: 10.4172/2155-9872.1000368] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Buprenorphine is becoming the medication of choice to help patients
withdraw from opioid addiction. However, treatment is compromised by the
inability of physicians to assess patient usage during scheduled examinations.
Here we describe the development of a point-of-care (POC) analyzer that can
rapidly measure both illicit and treatment drugs in patient saliva, ideally in
the physician’s office, and with a degree of accuracy similar to
chromatography. The analyzer employs a relatively simple supported liquid
extraction to isolate the drugs from the saliva and surface-enhanced Raman
spectroscopy (SERS) to detect the drugs. The SERS-based POC analyzer was used to
identify buprenorphine and opioids in saliva samples by matching library spectra
to samples collected from 7 veterans. The total analysis time, including sample
preparation, was ~25 minutes. Buprenorphine concentration was estimated
between 0 and 3 μg/mL. While no other prescription opioids were detected
in any samples, heroin was identified in one sample; Δ-9
tetrahydrocannabinol (THC) was detected in 3 samples; and acetaminophen,
caffeine, and nicotine were detected in several samples, none of which
interfered with the measurements. The analysis was in very good agreement with
urinalysis, correctly identifying the presence or absence of buprenorphine and
THC in 13 of 14 measurements.
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Affiliation(s)
- Stuart Farquharson
- Real-Time Analyzers, Inc., 362 Industrial Park Road, Unit 8, Middletown, CT 06457, USA
| | - Kathryn Dana
- Real-Time Analyzers, Inc., 362 Industrial Park Road, Unit 8, Middletown, CT 06457, USA
| | - Chetan Shende
- Real-Time Analyzers, Inc., 362 Industrial Park Road, Unit 8, Middletown, CT 06457, USA
| | - Zachary Gladding
- Real-Time Analyzers, Inc., 362 Industrial Park Road, Unit 8, Middletown, CT 06457, USA
| | - Jenelle Newcomb
- Veteran Affairs CT Healthcare System, USA.,Yale University School of Medicine, USA
| | - Jessica Dascher
- Veteran Affairs CT Healthcare System, USA.,Yale University School of Medicine, USA
| | - Ismene L Petrakis
- Veteran Affairs CT Healthcare System, USA.,Yale University School of Medicine, USA
| | - Albert J Arias
- Veteran Affairs CT Healthcare System, USA.,Yale University School of Medicine, USA
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Abdelmaksoud HH, Guinan TM, Voelcker NH. Fabrication of Nanostructured Mesoporous Germanium for Application in Laser Desorption Ionization Mass Spectrometry. ACS APPLIED MATERIALS & INTERFACES 2017; 9:5092-5099. [PMID: 28107617 DOI: 10.1021/acsami.6b14362] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Surface-assisted laser desorption/ionization mass spectrometry (SALDI-MS) is a high-throughput analytical technique ideally suited for small-molecule detection from different bodily fluids (e.g., saliva, urine, and blood plasma). Many SALDI-MS substrates require complex fabrication processes and further surface modifications. Furthermore, some substrates show instability upon exposure to ambient conditions and need to be kept under special inert conditions. We have successfully optimized mesoporous germanium (meso-pGe) using bipolar electrochemical etching and efficiently applied meso-pGe as a SALDI-MS substrate for the detection of illicit drugs such as in the context of workplace, roadside, and antiaddictive drug compliance. Argon plasma treatment improved the meso-pGe efficiency as a SALDI-MS substrate and eliminated the need for surface functionalization. The resulting substrate showed a precise surface geometry tuning by altering the etching parameters, and an outstanding performance for illicit drug detection with a limit of detection in Milli-Q water of 1.7 ng/mL and in spiked saliva as low as 5.3 ng/mL for cocaine. The meso-pGe substrate had a demonstrated stability over 56 days stored in ambient conditions. This proof-of-principle study demonstrates that meso-pGe can be reproducibly fabricated and applied as an analytical SALDI-MS substrate which opens the door for further analytical and forensic high-throughput applications.
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Affiliation(s)
- Hazem H Abdelmaksoud
- Future Industries Institute, University of South Australia , University Boulevard, Mawson Lakes, Adelaide, 5095 South Australia, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia , GPO Box 2471, Adelaide, South Australia 5001, Australia
| | - Taryn M Guinan
- Future Industries Institute, University of South Australia , University Boulevard, Mawson Lakes, Adelaide, 5095 South Australia, Australia
| | - Nicolas H Voelcker
- Future Industries Institute, University of South Australia , University Boulevard, Mawson Lakes, Adelaide, 5095 South Australia, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Future Industries Institute, University of South Australia , GPO Box 2471, Adelaide, South Australia 5001, Australia
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20
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Phan O, Obradovic I, Har A. [Consumption of cannabis in adolescents]. Arch Pediatr 2016; 24:91-95. [PMID: 27889374 DOI: 10.1016/j.arcped.2016.10.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 09/06/2016] [Accepted: 10/06/2016] [Indexed: 10/20/2022]
Abstract
Over the past 10 years, the consumption of cannabis among adolescents has dramatically increased. Today, adolescent cannabis use is a major public health problem. Two forms of cannabis are commonly smoked: herb (marijuana) and resin. These forms have a high concentration of tetrahydrocannabinol, the active molecule of cannabis. Recent research has helped understand how the cannabinoid system works. This system combines specific receptors and specific molecules: the endocannabinoids. The effects of cannabis use are now well documented. Some adolescents report subjective positive effects. They use it not only on a recreational basis, but also to deal with their emotions. Over the long term, cannabis increases the risk of depression and schizophrenia for those adolescents who are at risk. Use, misuse, and dependence are frequently associated with heavy psychopathologic problems such as vulnerability and depression. Many cannabis dependence psychotherapies have shown their efficacy and efficiency. Motivational interviews, cognitive behavioral therapy, multidimensional family therapy (MDFT), and residential treatment have proved highly effective. MDFT seems very effective, especially in cases of heavy use.
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Affiliation(s)
- O Phan
- Consultation jeunes consommateurs, centre Pierre-Nicole, Croix-Rouge française, 75005 Paris, France; Clinique Dupré, fondation santé des étudiants de France, 92330 Sceaux, France; Unité Inserm U1018, maison des adolescents, 75014 Paris, France.
| | - I Obradovic
- Observatoire français des drogues et des toxicomanies, 3, avenue du Stade-de-France, 93218 Saint-Denis-La-Plaine cedex, France
| | - A Har
- Clinique Dupré, fondation santé des étudiants de France, 92330 Sceaux, France
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Kline ND, Tripathi A, Mirsafavi R, Pardoe I, Moskovits M, Meinhart C, Guicheteau JA, Christesen SD, Fountain AW. Optimization of Surface-Enhanced Raman Spectroscopy Conditions for Implementation into a Microfluidic Device for Drug Detection. Anal Chem 2016; 88:10513-10522. [DOI: 10.1021/acs.analchem.6b02573] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Neal D. Kline
- Oak Ridge Institute
for Science and Education, Oak Ridge, Tennessee 37830, United States
| | - Ashish Tripathi
- Research and Technology
Directorate, Edgewood Chemical Biological Center, Aberdeen Proving Ground, Maryland 21010-5424, United States
| | - Rustin Mirsafavi
- Department
of Biomolecular Science and Engineering, University of California−Santa Barbara, Santa Barbara, California 93106, United States
| | - Ian Pardoe
- Excet, Inc., Springfield, Virginia 22150, United States
| | - Martin Moskovits
- Department
of Chemistry and Biochemistry, University of California−Santa Barbara, Santa Barbara, California 93106, United States
| | - Carl Meinhart
- Department
of Mechanical Engineering, University of California Santa Barbara, Santa
Barbara, California 93106, United States
| | - Jason A. Guicheteau
- Research and Technology
Directorate, Edgewood Chemical Biological Center, Aberdeen Proving Ground, Maryland 21010-5424, United States
| | - Steven D. Christesen
- Research and Technology
Directorate, Edgewood Chemical Biological Center, Aberdeen Proving Ground, Maryland 21010-5424, United States
| | - Augustus W. Fountain
- Research and Technology
Directorate, Edgewood Chemical Biological Center, Aberdeen Proving Ground, Maryland 21010-5424, United States
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Wright J, Edwards J, Walker S. Exposures associated with clandestine methamphetamine drug laboratories in Australia. REVIEWS ON ENVIRONMENTAL HEALTH 2016; 31:329-352. [PMID: 27428841 DOI: 10.1515/reveh-2016-0017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 06/07/2016] [Indexed: 06/06/2023]
Abstract
The clandestine manufacture of methamphetamine in residential homes may represent significant hazards and exposures not only to those involved in the manufacture of the drugs but also to others living in the home (including children), neighbours and first responders to the premises. These hazards are associated with the nature and improper storage and use of precursor chemicals, intermediate chemicals and wastes, gases and methamphetamine residues generated during manufacture and the drugs themselves. Many of these compounds are persistent and result in exposures inside a home not only during manufacture but after the laboratory has been seized or removed. Hence new occupants of buildings formerly used to manufacture methamphetamine may be unknowingly exposed to these hazards. Children are most susceptible to these hazards and evidence is available in the literature to indicate that these exposures may result in immediate and long-term adverse health effects. The assessment of exposure within the home can be undertaken by measuring contaminant levels or collecting appropriate biological data from individuals exposed. To gain a better understanding of the available data and key issues associated with these approaches to the characterisation of exposure, a review of the published literature has been undertaken.
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Irons JG, Bassett DT, Prendergast CO, Landrum RE, Heinz AJ. Development and Initial Validation of the Caffeine Consumption Questionnaire-Revised. JOURNAL OF CAFFEINE RESEARCH 2016. [DOI: 10.1089/jcr.2015.0012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Jessica G. Irons
- Department of Psychology, James Madison University, Harrisonburg, Virginia
| | - Drew T. Bassett
- Department of Psychology, Auburn University, Auburn, Alabama
| | | | - R. Eric Landrum
- Department of Psychology, Boise State University, Boise, Idaho
| | - Adrienne J. Heinz
- National Center for Posttraumatic Stress Disorder, Palo Alto VA Healthcare System, Menlo Park, California
- Center for Innovation to Implementation, Palo Alto VA Healthcare System, Menlo Park, California
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25
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Abstract
In recent years, saliva has attracted much interest among researchers especially in the field of forensic sciences. This complex body fluid is gaining popularity due to its ease of collection, safety in handling and its close relationship with plasma. Analysis of saliva for serological testing and cellular content has proved to be of wide use in crime detection, drug and alcohol abuse, hormone identification, cases of poisoning and animal bites. There is a need for forensic laboratories to automate the settings specific for saliva as routinely done for blood or urine in order to consider saliva as the primary investigating tool in the absence of other body fluids. This update is aimed at highlighting the many uses of saliva in the practice of forensic odontology.
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Affiliation(s)
- Susmita Saxena
- Department of Oral Pathology and Microbiology, ESIC Dental College and Hospital, New Delhi, India
| | - Sanjeev Kumar
- Department of Oral and Maxillofacial Surgery, ITS Dental College and Research Centre, Muradnagar, Uttar Pradesh, India
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Heiskanen T, Langel K, Gunnar T, Lillsunde P, Kalso EA. Opioid Concentrations in Oral Fluid and Plasma in Cancer Patients With Pain. J Pain Symptom Manage 2015; 50:524-32. [PMID: 25242020 DOI: 10.1016/j.jpainsymman.2014.09.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 08/30/2014] [Accepted: 09/12/2014] [Indexed: 10/24/2022]
Abstract
CONTEXT Measuring opioid concentrations in pain treatment is warranted in situations where optimal opioid analgesia is difficult to reach. OBJECTIVES To assess the usefulness of oral fluid (OFL) as an alternative to plasma in opioid concentration monitoring in cancer patients on chronic opioid therapy. METHODS We collected OFL and plasma samples from 64 cancer patients on controlled-release (CR) oral morphine, CR oral oxycodone, or transdermal (TD) fentanyl for pain. Samples were obtained on up to five separate days. RESULTS A total of 213 OFL and plasma samples were evaluable. All patients had detectable amounts of the CR or TD opioid in both plasma and OFL samples. The plasma concentrations of oxycodone and fentanyl (determination coefficient R(2) = 0.628 and 0.700, respectively), but not morphine (R(2) = 0.292), were moderately well correlated to the daily opioid doses. In contrast to morphine and fentanyl (mean OFL/plasma ratio 2.0 and 3.0, respectively), the OFL oxycodone concentrations were significantly higher than the respective plasma concentrations (mean OFL/plasma ratio 14.9). An active transporter could explain the much higher OFL vs. plasma concentrations of oxycodone compared with morphine and fentanyl. CONCLUSION OFL analysis is well suited for detecting the studied opioids. For morphine and fentanyl, an approximation of the plasma opioid concentrations is obtainable, whereas for oxycodone, the OFL/plasma concentration relationship is too variable for reliable approximation results.
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Affiliation(s)
- Tarja Heiskanen
- Pain Clinic, Department of Anesthesiology and Intensive Care Medicine, Helsinki University Central Hospital, Helsinki, Finland.
| | - Kaarina Langel
- Alcohol and Drug Analytics Unit, National Institute for Health and Welfare, Helsinki, Finland
| | - Teemu Gunnar
- Alcohol and Drug Analytics Unit, National Institute for Health and Welfare, Helsinki, Finland
| | - Pirjo Lillsunde
- Injury Prevention Unit, National Institute for Health and Welfare, Helsinki, Finland
| | - Eija A Kalso
- Pain Clinic, Department of Anesthesiology and Intensive Care Medicine, Helsinki University Central Hospital, Helsinki, Finland; Institute of Clinical Medicine, University of Helsinki, Helsinki, Finland
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Enders JR, McIntire GL. A Dilute-and-Shoot LC–MS Method for Quantitating Opioids in Oral Fluid. J Anal Toxicol 2015; 39:662-7. [DOI: 10.1093/jat/bkv087] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Langel K, Gjerde H, Favretto D, Lillsunde P, Øiestad EL, Ferrara SD, Verstraete AG. Comparison of drug concentrations between whole blood and oral fluid. Drug Test Anal 2013; 6:461-71. [PMID: 24039237 DOI: 10.1002/dta.1532] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 08/08/2013] [Accepted: 08/08/2013] [Indexed: 11/10/2022]
Abstract
The relationship of drug concentrations between oral fluid and whole blood was evaluated by studying the linear correlation of concentrations and calculating the oral fluid to blood concentration ratios (OF/B) for different substances. Paired oral fluid and whole blood samples were collected from volunteers and persons suspected of drug use in four European countries. Oral fluid samples were collected with the Saliva∙Sampler™ device. All samples were analyzed for drugs of abuse and psychoactive medicines with validated gas and liquid chromatography-mass spectrometric methods. The median OF/B ratios were, for amphetamines 19-22, for opioids 1.8-11, for cocaine and metabolites 1.7-17, for tetrahydrocannabinol (THC) 14, for benzodiazepines 0.035-0.33, and for other psychoactive medicines 0.24-3.7. Most of the these results were close to theoretical values based on the physicochemical properties of the drugs and to values presented earlier, but there was a lot of inter-individual variation in the OF/B ratios. For all substances, except for lorazepam (R(2) = 0.031) and THC (R(2) = 0.030), a correlation between the oral fluid and whole blood concentrations was observed. Due to large variation seen here, drug findings in oral fluid should not be used to estimate the corresponding concentrations in whole blood (or vice versa). However, detection of drugs in oral fluid is a sign of recent drug use and oral fluid can be used for qualitative detection of several drugs, e.g. in epidemiological prevalence studies. By optimizing the sampling and the analytical cut-offs, the potential of oral fluid as a confirmation matrix could be enhanced.
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Affiliation(s)
- Kaarina Langel
- Department of Alcohol, Drugs, and Addiction, National Institute for Health and Welfare, Helsinki, Finland
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Andreou C, Hoonejani MR, Barmi MR, Moskovits M, Meinhart CD. Rapid detection of drugs of abuse in saliva using surface enhanced Raman spectroscopy and microfluidics. ACS NANO 2013; 7:7157-64. [PMID: 23859441 DOI: 10.1021/nn402563f] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
We present a microfluidic device that detects trace concentrations of drugs of abuse in saliva within minutes using surface-enhanced Raman spectroscopy (SERS). Its operation is demonstrated using methamphetamine. The detection scheme exploits concentration gradients of chemicals, fostered by the laminar flow in the device, to control the interactions between the analyte, silver nanoparticles (Ag-NPs), and a salt. Also, since all species interact while advecting downstream, the relevant reaction coordinates occur with respect to the position in the channel. The system was designed to allow the analyte first to diffuse into the side stream containing the Ag-NPs, on which it is allowed to adsorb, before salt ions are introduced, causing the Ag-NPs to aggregate, and so creating species with strong SERS signal. The device allows partial separation via diffusion of the analyte from the complex mixture. Also, the reproducible salt-induced NP aggregation decouples the aggregation reaction (necessary for strong SERS) from the analyte concentration or charge. This method enables the creation of a region where detection of the analyte of interest via SERS is optimal, and dramatically extends the classes of molecules and quality of signals that can be measured using SERS, compared to bulk solution methods. The spatial distribution of the SERS signals was used to map the degree of nanoparticle aggregation and species diffusion in the channel, which, together with numerical simulations, was used to describe the kinetics of the colloid aggregation reaction, and to determine the optimal location in the channel for SERS interrogation.
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Affiliation(s)
- Chrysafis Andreou
- Interdepartmental Program in Biomolecular Science and Engineering, University of California, Santa Barbara, California 93106, United States
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Arroyo A, Sánchez M, Barberia E, Barbal M, Marrón MT, Mora A. Drivers under the influence of drugs of abuse: quantification of cocaine and impaired driving. Med Leg J 2013; 81:135-143. [PMID: 24057314 DOI: 10.1177/0025817213501782] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In recent years, the interest in oral fluid as a biological matrix has significantly increased, particularly for detecting driving under the influence of drugs. In this study, the concentration of cocaine and its relationship with clinical symptoms in drivers suspected of driving under the influence of drugs was evaluated. A total of 154 samples of oral fluid, which tested positive for cocaine in previous immunoassay screening, Cozart Drug Detector System, were confirmed using gas chromatography/mass spectrometry method. In Catalonia, during 2007-2010, there were 1791 samples positive for cocaine among a total of 3468 samples taken from drivers who tested positive for any drug of abuse. The evaluation of clinical symptoms was through a questionnaire that was filled in by the police officers who collected the samples. The mean concentration of cocaine was 4.11 mg/l and median concentration was 0.38 mg/l (range 0.01-345.64 mg/l). Clinical impairment symptoms such as motor coordination, walking, speech, mood and state of pupils were not significant. The testing of oral fluids presents fewer ethical problems than blood or urine.
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Affiliation(s)
- Amparo Arroyo
- Institute of Legal Medicine of Catalonia, Gran Via Corts Catalanes 111, Edif G, Barcelona, Spain
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Kassim S, Hawash A, Johnston A, Croucher R. Validation of self-reported khat chewing amongst khat chewers: an exploratory study. JOURNAL OF ETHNOPHARMACOLOGY 2012; 140:193-196. [PMID: 22244798 DOI: 10.1016/j.jep.2011.12.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Revised: 11/25/2011] [Accepted: 12/22/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Khat chewing amongst the UK communities originating from Yemen and the East African coast is suggested to create dependency through its main stimulant components (cathinone, norephedrine and norpseudoephedrine) on the central nervous system. AIMS OF THE STUDY To validate self-reported khat chewing behaviours by measuring levels of cathinone, norephedrine and norpseudoephedrine in saliva and to explore their associations with self-reported khat chewing dependency. MATERIALS AND METHODS Face-to-face interviews were conducted amongst 30 male UK-resident khat chewers. Saliva samples were collected from each participant and high-performance liquid chromatography (HPLC) employed to extract and quantify the levels of the biomarkers. RESULTS The mean (SD) for cathinone and the composite norephedrine and norpseudoephedrine levels were 33.93 (±39.20) and 29.28 (±26.32)μg/mL respectively. These biomarkers were significantly associated (p≤0.05) with khat chewing dependency. CONCLUSIONS Validation of self-reported khat chewing is possible. Khat chewing dependency correlates significantly with biomarker levels in saliva. Replication is required.
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Affiliation(s)
- Saba Kassim
- Queen Mary University of London, Barts and The London School of Medicine and Dentistry, Institute of Dentistry, 4 Newark Street, London E1 2AT, UK.
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Napoletano S, Montesano C, Compagnone D, Curini R, D’ascenzo G, Roccia C, Sergi M. Determination of Illicit Drugs in Urine and Plasma by Micro-SPE Followed by HPLC–MS/MS. Chromatographia 2011. [DOI: 10.1007/s10337-011-2156-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Barnes AJ, Scheidweiler KB, Kolbrich-Spargo EA, Gorelick DA, Goodwin RS, Huestis MA. MDMA and metabolite disposition in expectorated oral fluid after controlled oral MDMA administration. Ther Drug Monit 2011; 33:602-8. [PMID: 21860342 PMCID: PMC3178664 DOI: 10.1097/ftd.0b013e3182281975] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
INTRODUCTION The use of 3,4-methylenedioxymethamphetamine (MDMA) is increasing, enhancing the need for its detection in clinical, workplace, pain management, and driving under the influence of drugs testing programs. Oral fluid is an important alternative matrix for drug testing, but little is known about MDMA detection windows in oral fluid. AIMS The aim was to characterize MDMA and metabolite disposition in expectorated oral fluid after controlled MDMA administration. METHODS Placebo, low (1.0 mg/kg), and high (1.6 mg/kg) oral MDMA doses were given double-blind in random order in separate sessions to 29 healthy adults with histories of MDMA use. One thousand two hundred eighty-six expectorated oral fluid specimens collected up to 7 days after dosing were analyzed for MDMA, 3,4-methylenedioxyamphetamine (MDA), 4-hydroxy-3-methoxymethamphetamine (HMMA), and 4-hydroxy-3-methoxyamphetamine (HMA) by gas chromatography mass spectrometry. The limits of quantification were 5 ng/mL for MDMA and MDA and 10 ng/mL for HMA and HMMA. RESULTS MDMA was the primary analyte detected, with concentrations up to 12,000 ng/mL in 872 specimens (67.8%). MDA was quantified in 656 specimens (51.0%) at concentrations <403 ng/mL and was never present without concurrent MDMA. HMA and HMMA were not detected. Of the specimens, 59.8%, 58.6%, and 54.9% were found to be MDMA positive at the Talloires (20 ng/mL), Driving under the Influence of Drugs, Alcohol, and Medicines (25 ng/mL) and proposed US Substance Abuse and Mental Health Services Administration (50 ng/mL) confirmation cutoffs, respectively. MDMA was first observed in oral fluid 0.25-1.25 hours after dosing; MDA was initially detected at 0.5-1.75 hours. In general, the windows of detection for MDMA and MDA were 47 and 29 hours, respectively, although a few specimens were positive up to 71 and 47 hours. CONCLUSIONS Oral fluid monitoring efficiently detects single, recreational 70-150 mg of MDMA use for 1-2 days. These controlled administration data provide a scientific basis for interpreting MDMA oral fluid test results.
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Affiliation(s)
- Allan J. Barnes
- Chemistry and Drug Metabolism, National Institute on Drug Abuse, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224, U.S.A
| | - Karl B. Scheidweiler
- Chemistry and Drug Metabolism, National Institute on Drug Abuse, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224, U.S.A
| | - Erin A. Kolbrich-Spargo
- Chemistry and Drug Metabolism, National Institute on Drug Abuse, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224, U.S.A
- currently at Southwestern Institute of Forensic Sciences, 2355 N. Stemmons Frwy, Dallas, TX 75207, U.S.A
| | - David A. Gorelick
- Chemistry and Drug Metabolism, National Institute on Drug Abuse, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224, U.S.A
| | - Robert S. Goodwin
- Chemistry and Drug Metabolism, National Institute on Drug Abuse, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224, U.S.A
| | - Marilyn A. Huestis
- Chemistry and Drug Metabolism, National Institute on Drug Abuse, National Institutes of Health, 251 Bayview Boulevard, Baltimore, MD 21224, U.S.A
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Abstract
Urine is recognized as the prime matrix for drug test screening with well-established methods and testing protocols. Its major limitation is with regard to the inconvenience of sample collection and lack of integrity due to adulteration, dilution, drug spiking or sample exchange. The question is whether oral fluid, with its apparent better sample integrity, can replace urine for drug screening. This review examines the sample integrity problems and the advantages and limitations of oral fluid and urine in drug screening programmes. The variety of sample collection devices for oral fluid is shown to be a problem with recovery and detection for some drugs. This is examined in relation to the pharmacokinetics of drug metabolism and excretion in this matrix. Buccal contamination with drugs in oral fluid may also cause problems with interpretation. The clinical advantages of oral fluid analysis compared with urine testing are highlighted. Parent drugs are often found in oral fluid where only their metabolites may be found in urine, for example the benzodiazepines. 6-Monoacetylmorphine, an indicative marker of heroin, has a high prevalence in oral fluid from users of this drug but its detection in urine is limited due to its short half-life. Advances in analytical techniques, particularly chromatography linked to tandem mass spectrometry, are helping to promote oral fluid analysis. However, the lack of concordance studies examining both urine and oral fluid drug levels and kinetics in the clinical setting is of some concern.
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Affiliation(s)
- Keith R Allen
- Department of Specialist Laboratory Medicine, Leeds Teaching Hospitals, Britannia House, Morley, Leeds LS27 0DQ, UK
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Lowe RD, Guild GE, Harpas P, Kirkbride P, Hoffmann P, Voelcker NH, Kobus H. Rapid drug detection in oral samples by porous silicon assisted laser desorption/ionization mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2009; 23:3543-3548. [PMID: 19844964 DOI: 10.1002/rcm.4284] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The demand for analysis of oral fluid for illicit drugs has arisen with the increased adoption of roadside testing, particularly in countries where changes in legislation allow random roadside testing of drivers for the presence of a palette of illicit drugs such as methamphetamine (MA), 3,4-methylenedioxymethamphetamine (MDMA) and Delta9-tetrahydrocannabinol (THC). Oral samples are currently tested for such drugs at the roadside using an immunoassay-based commercial test kit. Positive roadside tests are sent for confirmatory laboratory analysis, traditionally by means of gas chromatography/mass spectrometry (GC/MS). We present here an alternative rapid analysis technique, porous silicon assisted laser desorption/ionization time-of-flight mass spectrometry (pSi LDI-MS), for the high-throughput analysis of oral fluids. This technique alleviates the need for sample derivatization, requires only sub-microliter sample volumes and allows fast analysis (of the order of seconds). In this study, the application of the technique is demonstrated with real samples from actual roadside testing. The analysis of oral samples resulted in detection of MA and MDMA with no extraction and analysis of THC after ethyl acetate extraction. We propose that, subject to miniaturization of a suitable mass spectrometer, this technique is well suited to underpin the deployment of oral fluid testing in the clinic, workplace and on the roadside.
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Affiliation(s)
- Rachel D Lowe
- School of Chemistry, Physics and Earth Sciences, Flinders University, Bedford Park, SA 5042, Australia
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Relationship Between Oral Fluid and Blood Concentrations of Drugs of Abuse in Drivers Suspected of Driving Under the Influence of Drugs. Ther Drug Monit 2009; 31:511-9. [DOI: 10.1097/ftd.0b013e3181ae46ea] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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DYER KYLER, WILKINSON CATHERINE. The detection of illicit drugs in oral fluid: another potential strategy to reduce illicit drug-related harm. Drug Alcohol Rev 2009; 27:99-107. [DOI: 10.1080/09595230701727583] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Biological matrices for the evaluation of exposure to environmental tobacco smoke during prenatal life and childhood. Anal Bioanal Chem 2009; 396:379-99. [DOI: 10.1007/s00216-009-2831-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2009] [Revised: 04/26/2009] [Accepted: 04/30/2009] [Indexed: 10/20/2022]
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Miao Z, Chen H. Direct analysis of liquid samples by desorption electrospray ionization-mass spectrometry (DESI-MS). JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2009; 20:10-19. [PMID: 18952458 DOI: 10.1016/j.jasms.2008.09.023] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2008] [Revised: 09/18/2008] [Accepted: 09/24/2008] [Indexed: 05/27/2023]
Abstract
Desorption electrospray ionization-mass spectrometry (DESI-MS) was evaluated for the direct analysis of liquid samples. Several interesting results were found. First, in contrast to the previous DESI analysis of dried solid samples that was limited to proteins with MW < or = 25 kDa (Anal. Chem. 2007, 79, 3514), bovine serum albumin (BSA, 66 kDa) was successfully ionized from solutions by DESI with observation of corresponding multiply charged ions. Second, direct DESI analysis of protein tryptic digest solutions without chromatographic separation, sample clean-up, and the sample drying step was demonstrated, providing reasonably good sequence coverage of 52% to 97%. Third, direct analysis of biofluids such as an undiluted urine sample without sample pretreatment is possible, emphasizing the high tolerance of DESI with salt. These results suggest that a charged droplet pick-up mechanism is responsible for desorption and ionization of liquid samples by DESI. Also, unlike in electrospray ionization (ESI), inhibition of electrochemical reduction in the negative ion mode was observed for liquid sample DESI. In addition, reactive DESI can be performed with ion/ion reactions of Zn(II) complexes for the selective binding of phosphoserine in the presence of serine. DESI experiment can also be carried out directly to liquid samples flowing out of a pumped syringe needle tip, allowing rapid analysis. Furthermore, on-line coupling of electrochemical cell with DESI-MS was demonstrated, in which perylene radical cations generated in the cell were successfully transferred to the gas-phase for MS detection by DESI. This study extended the scope of DESI-MS applications, which could have potentials in bioanalytical and forensic analysis.
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Affiliation(s)
- Zhixin Miao
- Center for Intelligent Chemical Instrumentation, Department of Chemistry and Biochemistry, Ohio University, Athens, Ohio, USA
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Crouch DJ, Walsh JM, Cangianelli L, Quintela O. Laboratory evaluation and field application of roadside oral fluid collectors and drug testing devices. Ther Drug Monit 2008; 30:188-95. [PMID: 18367979 DOI: 10.1097/ftd.0b013e3181679249] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
This study was a part of a collaborative U.S./E.U. international research effort (Roadside Testing Assessment, ROSITA II) to assess illegal drug use among motor vehicle operators suspected of driving while under the influence of drugs and to evaluate the effectiveness of point-of-collection oral fluid drug detection technologies. A goal of the study was to assess commercial oral fluid drug testing devices for potential use in law enforcement. Ten devices were evaluated in the laboratory for their ability to meet manufacturers' claimed (and proposed) cutoff concentrations for the detection of amphetamine(s), cocaine/metabolite, opiates, cannabinoids, and benzodiazepines (2 devices). The field study portion of the research was conducted in major cities in the United States and Western Europe by teams of scientists working in collaboration with the local police. In Salt Lake City, Utah, the Drugwipe, Securetec, Ottobrunn, Germany (Securetec) oral fluids drug testing device was also evaluated in the field by testing suspected drug-impaired drivers. During the initial phase of the field study, 40 subjects were recruited. Drugwipe results were compared with laboratory-based immunoassay and mass spectrometry results and demonstrated that calculated sensitivities were between 75% and 100% depending on drug class. Specificities varied from 36% for cannabinoids to over 95% for opiates. During the second phase of the field study, 267 subjects were recruited. The Drugwipe sensitivities were 36.4%, 35.9%, 42.9%, and 7.7%, respectively, for amphetamine(s), cocaine, opiates, and cannabinoids. The Drugwipe specificities were 99.2%, 97.4%, 99.6%, and 99.6%, respectively, for amphetamine(s), cocaine, opiates, and cannabinoids. Drugwipe failed to meet the study criteria for acceptable device performance, required performance sensitivities, and specificities 90% or greater.
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Affiliation(s)
- Dennis J Crouch
- Research and Development, Ameritox, LTD, Midland, TX 79705, USA.
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Determination of illicit and medicinal drugs and their metabolites in oral fluid and preserved oral fluid by liquid chromatography–tandem mass spectrometry. Anal Bioanal Chem 2008; 391:2329-38. [DOI: 10.1007/s00216-008-2135-4] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2008] [Revised: 04/07/2008] [Accepted: 04/11/2008] [Indexed: 10/22/2022]
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Parzynski CS, Jaszyna-Gasior M, Franken FH, Moolchan ET. Measuring nicotine intake among highly-dependent adolescent smokers: comparability of saliva and plasma cotinine concentrations. Pharmacol Biochem Behav 2008; 89:145-9. [PMID: 18199474 PMCID: PMC2359151 DOI: 10.1016/j.pbb.2007.12.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2007] [Revised: 11/27/2007] [Accepted: 12/02/2007] [Indexed: 11/23/2022]
Abstract
Cotinine is the most common biomarker used to assess nicotine exposure and abstinence. It can be measured in various matrices including saliva, plasma, and urine. Previous research with adults has shown high correlations between saliva and plasma cotinine concentrations. However, the research has not examined this relationship in adolescents. Additionally, variability in saliva flow and metabolism across gender, ethnicity, and age may impact the relationship between saliva and plasma cotinine concentration. Our aim was to examine the relationship between saliva and plasma cotinine concentration in a group of nicotine-dependent adolescent smokers. Additionally, we examined these correlations across gender, ethnicity and age. The sample consisted of 66 adolescent smokers (age 15.1+/-1.3, 63.6% girls, 66.7% European American, CPD 18.3+/-8.5, FTND 7.1+/-1.3). Saliva and plasma specimens were collected before the treatment phase of a nicotine replacement therapy trial and analyzed. The relationship between saliva and plasma cotinine concentration was analyzed using Pearson's correlation coefficients. We performed a secondary analysis using multiple regressions to compare correlations across race, gender and age. Results indicated a positive correlation between saliva cotinine and plasma cotinine concentration (r=0.84, p<0.001). Differences in correlations across age were significant (t=3.03, p<0.01). Differences across ethnicity approached significance (t=-1.93, p=0.058). Future research should seek to further validate saliva-to-plasma cotinine concentration ratios in adolescents as well as characterize saliva-to-plasma concentration differences and their underlying mechanisms.
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Jackson AU, Talaty N, Cooks RG, Van Berkel GJ. Salt tolerance of desorption electrospray ionization (DESI). JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2007; 18:2218-2225. [PMID: 17977744 DOI: 10.1016/j.jasms.2007.09.018] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2007] [Revised: 09/18/2007] [Accepted: 09/20/2007] [Indexed: 05/25/2023]
Abstract
The salt tolerance of desorption electrospray ionization (DESI) was systematically investigated by examining three different drug mixtures in the presence of 0, 0.2, 2, 5, 10, and 20% NaCl:KCl (1:1) from different surfaces. At physiological salt concentrations, the individual drugs in each mixture were observed in each experiment. Even at salt concentrations significantly above physiological levels, particular surfaces were effective in providing spectra that allowed the ready identification of the compounds of interest in low nanogram amounts. Salt adducts, which are observed even in the absence of added salt, could be eliminated by adding 0.1% 7 M ammonium acetate to the standard methanol:water (1:1) spray solvent. Comparison of the salt tolerance of DESI with that of electrospray ionization (ESI) demonstrated better signal/noise characteristics for DESI. The already high salt tolerance of DESI can be optimized further by appropriate choices of surface and spray solution.
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Affiliation(s)
- Ayanna U Jackson
- Department of Chemistry, Purdue University and Bindley Bioscience Center, Discovery Park at Purdue University, West Lafayette, Indiana 47907, USA
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Ventura M, Pichini S, Ventura R, Zuccaro P, Pacifici R, de la Torre R. Stability Studies of Principal Illicit Drugs in Oral Fluid: Preparation of Reference Materials for External Quality Assessment Schemes. Ther Drug Monit 2007; 29:662-5. [PMID: 17898661 DOI: 10.1097/ftd.0b013e318156e892] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Data on the stability of drugs of abuse in oral fluid are needed to define the optimal transportation and storage conditions when this biological fluid has to be used for off-site screening and confirmation analyses, as well as in the preparation of reference material for external quality assessment schemes. The short-term and long-term stability of opiates, cocaine, amphetamines, and methylenedioxy derivatives in unstimulated oral fluid was evaluated in different storage conditions, with and without the addition of citrate buffer and sodium azide. Short-term stability was evaluated at 25 degrees C and 37 degrees C for up to 7 days. Long-term stability was evaluated at different time intervals for up to 2 months at 4 degrees C and -20 degrees C. The effect of three different freezing and thawing cycles was also studied. No significant loss of amphetamines and methylenedioxy derivatives, morphine, codeine, and benzoylecgonine was observed under any of the investigated conditions. Conversely, hydrolysis of the ester bonds of cocaine and 6-MAM, leading to the formation of benzoylecgonine and morphine, respectively, was observed under all the applied conditions when oral fluid was not buffered and preserved. The addition of citrate buffer (pH, 4) and sodium azide (0.1%) to oral fluid prevented their degradation during up to 7 days of storage at 25 degrees C and 37 degrees C and up to 2 months at 4 degrees C and -20 degrees C. The stability of the principal illicit drugs spiked in buffered and stabilized oral fluid is adequate for transportation of collected samples at ambient temperature and for shipment and storage of reference materials for external quality assessment schemes.
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Affiliation(s)
- Montserrat Ventura
- Unitat de Recerca en Farmacologia, Institut Municipal d'Investigació Mèdica, Spain
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Teixeira H, Verstraete A, Proença P, Corte-Real F, Monsanto P, Vieira DN. Validated method for the simultaneous determination of Δ9-THC and Δ9-THC-COOH in oral fluid, urine and whole blood using solid-phase extraction and liquid chromatography–mass spectrometry with electrospray ionization. Forensic Sci Int 2007; 170:148-55. [PMID: 17614225 DOI: 10.1016/j.forsciint.2007.03.026] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2006] [Revised: 03/23/2007] [Accepted: 03/23/2007] [Indexed: 11/18/2022]
Abstract
A fully validated, sensitive and specific method for the extraction and quantification of Delta(9)-tetrahydrocannabinol (THC) and 11-nor-9-carboxy-Delta(9)-THC (THC-COOH) and for the detection of 11-hydroxy-Delta(9)-THC (11-OH THC) in oral fluid, urine and whole blood is presented. Solid-phase extraction and liquid chromatography-mass spectrometry (LC-MS) technique were used, with electrospray ionization. Three ions were monitored for THC and THC-COOH and two for 11-OH THC. The compounds were quantified by selected ion recording of m/z 315.31, 329.18 and 343.16 for THC, 11-OH THC and THC-COOH, respectively, and m/z 318.27 and 346.26 for the deuterated internal standards, THC-d(3) and THC-COOH-d(3), respectively. The method proved to be precise for THC and THC-COOH both in terms of intra-day and inter-day analysis, with intra-day coefficients of variation (CV) less than 6.3, 6.6 and 6.5% for THC in saliva, urine and blood, respectively, and 6.8 and 7.7% for THC-COOH in urine and blood, respectively. Day-to-day CVs were less than 3.5, 4.9 and 11.3% for THC in saliva, urine and blood, respectively, and 6.2 and 6.4% for THC-COOH in urine and blood, respectively. Limits of detection (LOD) were 2 ng/mL for THC in oral fluid and 0.5 ng/mL for THC and THC-COOH and 20 ng/mL for 11-OH THC, in urine and blood. Calibration curves showed a linear relationship for THC and THC-COOH in all samples (r(2)>0.999) within the range investigated. The procedure presented here has high specificity, selectivity and sensitivity. It can be regarded as an alternative method to GC-MS for the confirmation of positive immunoassay test results, and can be used as a suitable analytical tool for the quantification of THC and THC-COOH in oral fluid, urine and/or blood samples.
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Affiliation(s)
- Helena Teixeira
- Delegation of Coimbra, National Institute of Legal Medicine, Coimbra, Portugal.
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Concheiro M, de Castro A, Quintela O, Cruz A, López-Rivadulla M. Confirmation by LC–MS of drugs in oral fluid obtained from roadside testing. Forensic Sci Int 2007; 170:156-62. [PMID: 17658709 DOI: 10.1016/j.forsciint.2007.03.034] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2006] [Revised: 03/06/2007] [Accepted: 03/06/2007] [Indexed: 11/22/2022]
Abstract
The aim of this study was to assess the effectiveness of two current on-site oral fluid (OF) drug detection devices (OraLab and Dräger), as part of the Spanish participation in the Roadside Testing Assessment Project (ROSITA Project). The study was done in collaboration with the Spanish Traffic Police, in Galicia (NW Spain), during 2004 and 2005. A total of 468 drivers selected at the police controls agreed to participate through informed consent. In addition, saliva samples were collected and sent to the laboratory to confirm the on-site results. For this purpose, two different analytical liquid chromatography-mass spectrometry (LC-MS) methods were used to detect 11 drugs or metabolites in a 300 microL sample. Simultaneous analysis of morphine, 6-acetylmorphine, amphetamine, methamphetamine, MDA, MDMA, MDEA, MBDB, cocaine and benzoylecgonine was carried out using 100 microL of oral fluid, after an automated solid phase extraction. A different LC-MS method was performed to detect Delta(9)-THC in 200 microL of oral fluid using liquid-liquid extraction with hexane at pH 6. Both methods were fully validated, including linearity (1-250 ng/mL, 2-250 ng/mL) recovery (>50%), within-day and between-day precision (CV<15%), accuracy (mean relative error<15%), limit of detection (0.5 and 1 ng/mL), quantitation (1 and 2 ng/mL) and matrix effect. All of the positive cases and a random selection of 30% of the negatives were analyzed for confirmation analysis. Good results (sensitivity, specificity, accuracy, positive predictive value and negative predictive value>90%) were obtained for cocaine and opiates by OraLab, and for cocaine by Dräger. However, the results for the other compounds could be improved for both detection devices. Differences in the ease of use and in the interpretation mode (visual or instrumental) were observed.
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Affiliation(s)
- Marta Concheiro
- Forensic Toxicology Service, Institute of Legal Medicine, University of Santiago de Compostela, Santiago de Compostela, Spain
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Dams R, Choo RE, Lambert WE, Jones H, Huestis MA. Oral fluid as an alternative matrix to monitor opiate and cocaine use in substance-abuse treatment patients. Drug Alcohol Depend 2007; 87:258-67. [PMID: 17008030 PMCID: PMC1892788 DOI: 10.1016/j.drugalcdep.2006.08.020] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2006] [Revised: 08/24/2006] [Accepted: 08/24/2006] [Indexed: 10/24/2022]
Abstract
Interest in oral fluid as an alternative matrix for monitoring drug use is due to its ease-of-collection and non-invasiveness; however, limited data are available on the disposition of drugs into oral fluid. The objective of this research was to provide data on the presence and concentrations of heroin, cocaine and multiple metabolites in oral fluid after illicit opioid and cocaine use. Thrice weekly oral fluid specimens (N=403) from 16 pregnant opiate-dependent women were obtained with the Salivette oral fluid collection device. Evidence of heroin (N=62) and cocaine (N=130) use was detected in oral fluid by LC-APCI-MS/MS. 6-Acetylmorphine (6-AM), heroin and morphine were the major opiates detected, with median concentrations of 5.2, 2.3, and 7.5 microg/L, respectively. Cocaine and benzoylecgonine (BE) had median concentrations of 6.4 and 3.4 microg/L. Application of the Substance Abuse Mental Health Services Administration (SAMHSA) recommended cutoffs for morphine and codeine (40 microg/L), 6-AM (4 microg/L) and cocaine and BE (8 microg/L), yielded 28 opiate- and 50 cocaine-positive specimens. Oral fluid is a promising alternative matrix to monitor opiate and cocaine use in drug testing programs. These data guide interpretation of oral fluid test results and evaluate currently proposed SAMHSA oral fluid testing cutoffs.
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Affiliation(s)
- Riet Dams
- Chemistry and Drug Metabolism, National Institute on Drug Abuse, 5500 Nathan Shock Drive, Baltimore, MD 21224, USA
- Laboratory of Toxicology, Ghent University, Harelbekestraat 72, B-9000 Gent, Belgium
| | - Robin E. Choo
- Chemistry and Drug Metabolism, National Institute on Drug Abuse, 5500 Nathan Shock Drive, Baltimore, MD 21224, USA
| | - Willy E. Lambert
- Laboratory of Toxicology, Ghent University, Harelbekestraat 72, B-9000 Gent, Belgium
| | - Hendree Jones
- Center for Addiction and Pregnancy, Johns Hopkins Bayview Medical Center, 4940 Eastern Avenue, Baltimore, MD 21224, USA
| | - Marilyn A. Huestis
- Chemistry and Drug Metabolism, National Institute on Drug Abuse, 5500 Nathan Shock Drive, Baltimore, MD 21224, USA
- * Corresponding author: Dr. Marilyn A. Huestis, Chemistry and Drug Metabolism Section, National Institute on Drug Abuse, 5500 Nathan Shock Drive, Baltimore, MD, 21224, U.S.A. Tel: +1 410 550 2711, Fax: +1 410 550 2971, E-mail:
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Abstract
Oral fluid testing for drugs of abuse offers significant advantages over urine as a test matrix. Collection can be performed under direct observation with reduced risk of adulteration and substitution. Drugs generally appear in oral fluid by passive diffusion from blood, but also may be deposited in the oral cavity during oral, smoked, and intranasal administration. Drug metabolites also can be detected in oral fluid. Unlike urine testing, there may be a close correspondence between drug and metabolite concentrations in oral fluid and in blood. Interpretation of oral fluid results for drugs of abuse should be an iterative process whereby one considers the test results in the context of program requirements and a broad scientific knowledge of the many factors involved in determining test outcome. This review delineates many of the chemical and metabolic processes involved in the disposition of drugs and metabolites in oral fluid that are important to the appropriate interpretation of oral fluid tests. Chemical, metabolic, kinetic, and analytic parameters are summarized for selected drugs of abuse, and general guidelines are offered for understanding the significance of oral fluid tests.
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Affiliation(s)
- Edward J Cone
- Johns Hopkins School of Medicine, Baltimore, Maryland, USA.
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50
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Langman LJ. The use of oral fluid for therapeutic drug management: clinical and forensic toxicology. Ann N Y Acad Sci 2007; 1098:145-66. [PMID: 17332075 DOI: 10.1196/annals.1384.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
One of the underlying tenets of clinical pharmacology is that only free drugs are pharmacologically active. It is thought that only free drugs can cross biological membranes to interact with a given receptor to alter its function, and that drug responses, both efficacious and toxic, are a function of unbound concentrations. The rationale for measuring drugs in oral fluid is that the free fraction of a drug in plasma reaches equilibrium with the drug in saliva. Although reports concerning the appearance of organic solutes in saliva have been in the literature for over 70 years, it has only been in the past 30 years that there has been emphasis on the appearance of drugs. Although many assumptions for drug level monitoring in saliva are made, the primary requisite for salivary monitoring to be useful is a constant or predictable relationship between the drug concentration in saliva and the drug concentration in plasma. Measurement of oral fluid drug levels for the purpose of managing patients and making dosage adjustments may be useful for select drugs or drug classes. However, it does not appear to be useful for the majority of drugs therapeutically monitored. Some work with antipsychotic medications has indicated that although the measurement of drug concentrations themselves may not be useful for dosage adjustment, the ratio of parent drug to metabolite may reflect altered metabolic status due to either pharmacogenetic variation or other clinical conditions. Furthermore, analysis of saliva may provide a cost-effective approach for the screening of large populations.
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Affiliation(s)
- Loralie J Langman
- Division of Clinical Biochemistry and Immunology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN 55905, USA.
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