Journal of analytical toxicology最新文献

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Synthetic cannabinoid identification in cases associated with blue lotus and valerian root vaping products. 在与蓝莲花和缬草根有关的病例中鉴定合成大麻素。
IF 2.3 3区 医学
Journal of analytical toxicology Pub Date : 2024-10-28 DOI: 10.1093/jat/bkae065
Joshua Z Seither, Erin L Karschner, Kimberly R Jackson, Anna Deakin, Sara H Roper, Jeffrey P Walterscheid
{"title":"Synthetic cannabinoid identification in cases associated with blue lotus and valerian root vaping products.","authors":"Joshua Z Seither, Erin L Karschner, Kimberly R Jackson, Anna Deakin, Sara H Roper, Jeffrey P Walterscheid","doi":"10.1093/jat/bkae065","DOIUrl":"10.1093/jat/bkae065","url":null,"abstract":"<p><p>Synthetic cannabinoids emerged in the early 21st century and have continued to evolve and flourish to present day. Like other novel psychoactive substances (NPS), synthetic cannabinoids have been sold under the guise of legitimate products. Some examples include \"potpourri,\" \"incense,\" and herbal material. Between May 2020 and December 2023, the United States Army Criminal Investigation Laboratory, Drug Chemistry Division (USACIL) received 29 seized drug cases mentioning \"blue lotus\" or \"valerian root.\" In 90% of these cases, at least one exhibit contained one or more synthetic cannabinoids. During the same timeframe, the Armed Forces Medical Examiner System, Division of Forensic Toxicology received 65 toxicology cases that contained synthetic cannabinoids and/or their corresponding metabolites where case history mentioned \"blue lotus.\" The most frequently observed synthetic cannabinoids between laboratories were 5F-MDMB-PICA, ADB-BUTINACA, and MDMB-4en-PINACA. Innocuous branding and marketing may deceive law enforcement, investigators, and healthcare providers into believing that the adverse effects of erratic behavior, sedation, slurred speech, and hallucinations are a result of toxicity from botanical extracts (e.g. apomorphine and nuciferine in blue lotus). Due to the dangerous nature of these NPS, synthetic cannabinoid screening is recommended for all cases where there is suspected use of vaping products suggested to contain \"blue lotus\" or \"valerian root\" as vendors continue to conceal the presence of these compounds.</p>","PeriodicalId":14905,"journal":{"name":"Journal of analytical toxicology","volume":" ","pages":"557-565"},"PeriodicalIF":2.3,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141855623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The emergence of bromazolam in Jefferson County, AL: a case series. 在阿拉巴马州杰斐逊县出现的溴唑仑。一个案例系列。
IF 2.3 3区 医学
Journal of analytical toxicology Pub Date : 2024-10-28 DOI: 10.1093/jat/bkae067
Kesley D Green, Lisa M Bianco, Brandi C McCleskey, Karen S Scott
{"title":"The emergence of bromazolam in Jefferson County, AL: a case series.","authors":"Kesley D Green, Lisa M Bianco, Brandi C McCleskey, Karen S Scott","doi":"10.1093/jat/bkae067","DOIUrl":"10.1093/jat/bkae067","url":null,"abstract":"<p><p>Postmortem toxicology is an ever-changing landscape presenting challenges for toxicologists and medical examiners. Trends can vary for certain benzodiazepines. While diazepam use tends to remain constant, alprazolam and clonazepam ebb and flow depending on prescription trends and street popularity. Novel benzodiazepines like etizolam vary in casework depending on legal restrictions and black market availability. In May 2022, the first case of the designer benzodiazepine, bromazolam, was detected in Jefferson County Coroner/Medical Examiner's Office casework. Between then and December 2023, an additional nine cases have been observed. Bromazolam is the brominated analog of the low-dose benzodiazepine, alprazolam, and is likely similar in potency. As bromazolam is a potent benzodiazepine, low concentrations of this novel drug are likely to contribute to central nervous system depression in opioid overdose cases. We present 10 cases in which bromazolam was detected in postmortem samples at the University of Alabama at Birmingham toxicology laboratory. The decedents ranged in age from 20 to 41 years. Most of the decedents were White (n = 8; 80%) and male (n = 7; 70%). Bromazolam concentrations ranged from 21 to 3220 ng/mL (mean 401 ng/mL). All but one case were polydrug, and all deaths were related to drug toxicity. Fentanyl was detected in 8 of the 10 decedents, with concentrations ranging from <2.5 to 97 ng/mL (mean 30 ng/mL). Additional drugs detected were methamphetamine, ethanol, oxycodone, methadone, cocaine, amphetamine, morphine, and diphenhydramine. While all manners of death were ruled as accidental, bromazolam was included in the cause of death statements in 9 of the 10 cases. Capturing important emerging drug trends in the death certificate is critical to help inform public health and medical colleagues for preventive measures and treatment in the continued drug epidemic.</p>","PeriodicalId":14905,"journal":{"name":"Journal of analytical toxicology","volume":" ","pages":"566-572"},"PeriodicalIF":2.3,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141859837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fentanyl-related deaths in Ontario, Canada: toxicological findings and circumstances of death in 4395 cases (2020-22). 加拿大安大略省与芬太尼相关的死亡案例:加拿大安大略省芬太尼相关死亡案例:4395 例死亡案例中的毒理学发现和死亡情况(2020-2022 年)》。
IF 2.3 3区 医学
Journal of analytical toxicology Pub Date : 2024-10-28 DOI: 10.1093/jat/bkae061
Alexandra Adamo, Karlie Marshall, Karen L Woodall
{"title":"Fentanyl-related deaths in Ontario, Canada: toxicological findings and circumstances of death in 4395 cases (2020-22).","authors":"Alexandra Adamo, Karlie Marshall, Karen L Woodall","doi":"10.1093/jat/bkae061","DOIUrl":"10.1093/jat/bkae061","url":null,"abstract":"<p><p>Over the last 20 years, there has been a significant increase in fentanyl-related deaths in Ontario, Canada. This report examines toxicological findings in a series of death investigations in which fentanyl was quantitated to identify the prevalence, trends, and demographic data associated with fentanyl in Ontario, Canada, and to highlight the changes in these trends since fentanyl began appearing in casework in Ontario in the early 2000s. A retrospective study of all cases in which fentanyl was quantitated in blood, using liquid chromatography (LC)-tandem mass spectrometry (MS-MS), was conducted for the time period between 1 January 2020 and 31 December 2022. A total of 4395 cases were included; 77% of the decedents were male, and 23% was female with ages ranging from 0 to 95 years. The most frequently classified cause of death was mixed drug toxicity (69%) followed by fentanyl intoxication at 19%. Less than 10% of cases where fentanyl was quantitated were classified as nondrug-related deaths. Fentanyl concentrations in all cases ranged from 1.3 to >2000 ng/mL. Other drugs were frequently detected with fentanyl. In mixed drug toxicity cases, stimulants were the most frequently encountered class of drugs: cocaine was identified in 51.8%, and methamphetamine was observed in 43.0% of cases. Detailed reports for select cases were included to provide additional insight into the different case types and to show the difficulty in interpreting blood concentrations without additional detailed case histories. This study provides valuable information for the scientific and medical community regarding the continued use of fentanyl and how patterns of fentanyl use have evolved since it began to appear in forensic casework.</p>","PeriodicalId":14905,"journal":{"name":"Journal of analytical toxicology","volume":" ","pages":"598-605"},"PeriodicalIF":2.3,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515131/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141534484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A multi-year characterization of confiscated vaping products from Virginia school youth. 弗吉尼亚州学校青少年被没收的吸食毒品的多年特征。
IF 2.3 3区 医学
Journal of analytical toxicology Pub Date : 2024-10-28 DOI: 10.1093/jat/bkae060
Alaina K Holt, Meredith G Buckmire, Kelsey S Moss, Jessemia Meekins, Ashleigh E Outhous, Laerissa Reveil, Akira B Goden, Cosima Hoetger, Alisha Eversole, Justin L Poklis, Eric K Soule, Caroline O Cobb, Michelle R Peace
{"title":"A multi-year characterization of confiscated vaping products from Virginia school youth.","authors":"Alaina K Holt, Meredith G Buckmire, Kelsey S Moss, Jessemia Meekins, Ashleigh E Outhous, Laerissa Reveil, Akira B Goden, Cosima Hoetger, Alisha Eversole, Justin L Poklis, Eric K Soule, Caroline O Cobb, Michelle R Peace","doi":"10.1093/jat/bkae060","DOIUrl":"10.1093/jat/bkae060","url":null,"abstract":"<p><p>The US Food and Drug Administration's (FDA) regulatory oversight over electronic cigarettes (e-cigs) includes access restriction for persons <21 years of age and flavor restrictions for \"cartridge-based\" products. Despite the restrictions, consumption by US youth perseveres. Studies on youth e-cig use are limited by the reliability and accuracy of self-reports. As an alternative to self-reports, the current study examined nicotine, cannabinoid, and unlabeled e-cigs and other vaping products confiscated from Virginia public schools to characterize trends among students. Findings highlight a shift from JUUL and pod-based products to single use disposable e-cigs following the FDA flavor restrictions on cartridge-based e-cigs. Chemical analysis of e-liquids by gas chromatography-mass spectrometry identified a wide variety of flavorants and an increase in the prevalence of synthetic coolants. Most confiscated products were nicotine salt formulations, but the prevalence of cannabinoid-based vaping products increased. The popularity of flavored disposable e-cigs highlights the need for further restrictions to reduce youth consumption. The increasing use of synthetic coolants instead of menthol may suggest that manufacturers are employing tactics to bypass regulations. Continued youth access to e-cigs and the abundance of cannabinoid-based products is problematic from health and safety perspectives. Continued research incorporating confiscated product analysis can be used to understand youth access to vaping products and evolutions in manufacturing practices.</p>","PeriodicalId":14905,"journal":{"name":"Journal of analytical toxicology","volume":" ","pages":"606-615"},"PeriodicalIF":2.3,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11515133/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141734207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of 132 submandibular salivary glands using the Randox Evidence Investigator and Randox DOA ULTRA WB array. 使用 Randox Evidence Investigator 和 Randox DOA ULTRA WB 阵列分析 132 个下颌下腺唾液腺。
IF 2.3 3区 医学
Journal of analytical toxicology Pub Date : 2024-10-28 DOI: 10.1093/jat/bkae071
Jessica L Adamczyk, Joseph A Prahlow, Roberta Grieger-Nimmo, Rajeswari Kundu, Prentiss Jones
{"title":"Analysis of 132 submandibular salivary glands using the Randox Evidence Investigator and Randox DOA ULTRA WB array.","authors":"Jessica L Adamczyk, Joseph A Prahlow, Roberta Grieger-Nimmo, Rajeswari Kundu, Prentiss Jones","doi":"10.1093/jat/bkae071","DOIUrl":"10.1093/jat/bkae071","url":null,"abstract":"<p><p>Occasionally, obtaining an adequate or acceptable postmortem blood specimen for drug analysis is not possible due to factors such as decomposition, exsanguination, or embalming. Submandibular salivary gland tissue, one of three major types of salivary gland tissue in the oral cavity of humans, has been reported to be a viable alternative postmortem specimen for toxicological testing. In this study, we evaluated the performance of the Randox Evidence Investigator instrument and Randox DOA (Drugs of Abuse) Ultra Whole Blood Array for the semi-quantitative determination of 21 immunoassays in an alternative matrix, submandibular salivary gland tissue. We analyzed 132 submandibular salivary gland tissue specimens and compared the generated results to concomitantly collected postmortem whole blood specimen results. Oxycodone 2, meprobamate, barbiturate, benzodiazepine assay 1, zolpidem, and buprenorphine all showed perfect agreement (Cohen's kappa score = 1.00) between the submandibular salivary gland tissue results and the postmortem whole blood results; dextromethorphan, fentanyl, benzoylecgonine, methamphetamine, tricyclic antidepressants, oxycodone 1, and opiate showed an almost perfect agreement (Cohen's kappa score = 0.81-0.99); methadone, generic opioids, and amphetamine exhibited substantial agreement (Cohen's kappa score = 0.61-0.80). Tramadol demonstrated fair agreement (Cohen's kappa score = 0.41-0.60). The lowest measure of agreement was observed with cannabinoids, meeting criteria for slight agreement (Cohen's kappa score = 0.01-0.20). An application of the techniques described in this study could be implemented in postmortem toxicology laboratories as well as medical examiners offices to provide preliminary drugs of abuse test results that can be used to direct additional testing. This study highlights the successful integration of a novel specimen matrix and an \"off-label\" use of an established analytical technique.</p>","PeriodicalId":14905,"journal":{"name":"Journal of analytical toxicology","volume":" ","pages":"591-597"},"PeriodicalIF":2.3,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142004286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Postmortem diphenhydramine blood concentrations in children. 儿童死后血液中的苯海拉明浓度。
IF 2.3 3区 医学
Journal of analytical toxicology Pub Date : 2024-10-25 DOI: 10.1093/jat/bkae084
H Rachelle Wallage, Marie Elliot
{"title":"Postmortem diphenhydramine blood concentrations in children.","authors":"H Rachelle Wallage, Marie Elliot","doi":"10.1093/jat/bkae084","DOIUrl":"https://doi.org/10.1093/jat/bkae084","url":null,"abstract":"<p><p>Diphenhydramine has been available for decades in non-prescription formulations for the treatment of allergic reactions, insomnia and symptomology associated with colds. In addition, dimenhydrinate, a precursor to diphenhydramine, is available in preparations for the treatment of nausea and vomiting. Diphenhydramine and other first-generation antihistamines are being replaced by second- and third-generation antihistamines which are associated with fewer side effects, notably the lack of drowsiness; however, there are still a variety of therapeutic uses that have persisted in both adults and children. In this study, postmortem blood concentrations of diphenhydramine were determined, by liquid chromatography tandem mass spectrometry, in seven children with concentrations ranging from 0.051 to 2.6 mg/L. The cause of death in two cases was attributed, at least in part, to diphenhydramine toxicity while diphenhydramine detection in five cases was considered incidental to the cause of death.</p>","PeriodicalId":14905,"journal":{"name":"Journal of analytical toxicology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142500837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Double Designers: Detection of Bromazolam and Metonitazene in Postmortem Casework. 双重设计者:在尸检病例中检测溴唑仑和甲硝唑。
IF 2.3 3区 医学
Journal of analytical toxicology Pub Date : 2024-10-16 DOI: 10.1093/jat/bkae082
Van Cleve Danielle, Mackenzie Liebl, Ani Kazaryan
{"title":"Double Designers: Detection of Bromazolam and Metonitazene in Postmortem Casework.","authors":"Van Cleve Danielle, Mackenzie Liebl, Ani Kazaryan","doi":"10.1093/jat/bkae082","DOIUrl":"https://doi.org/10.1093/jat/bkae082","url":null,"abstract":"<p><p>The identification of novel psychoactive substances (NPSs) in casework at the Los Angeles County Department of Medical Examiner (LACDME) is constantly evolving. The case detailed herein marks the first detection of metonitazene in forensic casework at the LACDME which occurred in August 2023. Furthermore, bromazolam was found in the decedent's system and both substances were identified in drug evidence collected at the death scene. No other drugs were detected and the manner and cause of death were determined as accidental due to effects of bromazolam and metonitazene. The concentrations detected were 1.6 ng/mL and 4.4 ng/mL of metonitazene in the jugular blood and femoral blood, respectively, and 93 ng/mL of bromazolam in the femoral blood. Constraints in screening techniques conducted by toxicology laboratories create challenges in which numerous NPSs available on the illicit drug market can go undetected. Even if labs detect an NPS in their screening methodology, confirmation methods might not cover every NPS, given the impracticality of labs keeping pace with validations as new NPSs emerge in casework. The significance of testing medical evidence collected at death scenes by drug chemistry analysis becomes crucial when initial toxicology results are negative. In cases where there is evidence of potential drug paraphernalia this is especially true as it can be pivotal in determining the cause and manner of death.</p>","PeriodicalId":14905,"journal":{"name":"Journal of analytical toxicology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142465976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Rise of Bromazolam in Postmortem Cases from Travis County, Texas and Surrounding Areas: 2021-2023 得克萨斯州特拉维斯县及周边地区死后病例中溴唑仑的增加:2021-2023
IF 2.5 3区 医学
Journal of analytical toxicology Pub Date : 2024-09-14 DOI: 10.1093/jat/bkae079
Kayla N Ellefsen, Christina R Smith, Paul D Simmons, Lauren A Edelman, Brad J Hall
{"title":"The Rise of Bromazolam in Postmortem Cases from Travis County, Texas and Surrounding Areas: 2021-2023","authors":"Kayla N Ellefsen, Christina R Smith, Paul D Simmons, Lauren A Edelman, Brad J Hall","doi":"10.1093/jat/bkae079","DOIUrl":"https://doi.org/10.1093/jat/bkae079","url":null,"abstract":"As novel psychoactive substances (NPS) have continued to emerge over the last decade, NPS benzodiazepines have likewise increased in prevalence. They pose an evolving threat to public health and safety with regard to postmortem cases, particularly when used in combination with opioids. Bromazolam was first detected in Travis County, Texas (TX) in April 2021. Given the recent onset of the fentanyl epidemic in this region, the international rise of bromazolam, and increased reports of “benzo-dope”, a retrospective study was conducted to characterize bromazolam-positive deaths in Travis County and surrounding counties from 2021-2023. Bromazolam was identified in 112 deaths from 2021-2023, accounting for 1.57% of cases submitted for toxicology testing (n=7,129). During that interval, a 7.5-fold increase was observed in postmortem bromazolam-related drug toxicities from 2021 (n=7) to 2023 (n=53). Fatalities primarily occurred in males in their early-30’s. Postmortem concentrations ranged from 21-220 ng/mL, with mean (median) concentrations of 69.4 ± 48.4 (53.5) ng/mL. Polydrug use was present in 99% of bromazolam-positive deaths with co-occurrence with other drugs and drug classes widely varying over time. Bromazolam was attributed as the sole cause of death in one case with a postmortem blood concentration of 23 ng/mL. Polydrug use in bromazolam-related drug toxicities commonly involved fentanyl (82%), methamphetamine (41%), and cocaine (28%). Similarly, cases where bromazolam was an incidental finding and non-contributory to the cause of death often involved methamphetamine (38%), alprazolam (33%), and cocaine (33%). In light of the significant increase in fentanyl-related deaths in Travis County, the increasing prevalence of bromazolam accompanying fentanyl was particularly alarming due to the heightened risk of toxicity when used in combination. Identifying and evaluating bromazolam-related deaths clarifies the impact of bromazolam on this population, promotes awareness, and aids in identifying meaningful harm reduction strategies to decrease bromazolam-related morbidity and mortality.","PeriodicalId":14905,"journal":{"name":"Journal of analytical toxicology","volume":"81 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142258901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development and method validation of a sampling technique for a reproducible detection of synthetic cannabinoids in exhaled breath using an in vitro pig lung model 利用体外猪肺模型开发和验证可重复检测呼出气体中合成大麻素的采样技术和方法
IF 2.5 3区 医学
Journal of analytical toxicology Pub Date : 2024-09-10 DOI: 10.1093/jat/bkae078
Nadja Walle, Adrian A Doerr, Benjamin Peters, Matthias W Laschke, Michael D Menger, Peter H Schmidt, Markus R Meyer, Nadine Schaefer
{"title":"Development and method validation of a sampling technique for a reproducible detection of synthetic cannabinoids in exhaled breath using an in vitro pig lung model","authors":"Nadja Walle, Adrian A Doerr, Benjamin Peters, Matthias W Laschke, Michael D Menger, Peter H Schmidt, Markus R Meyer, Nadine Schaefer","doi":"10.1093/jat/bkae078","DOIUrl":"https://doi.org/10.1093/jat/bkae078","url":null,"abstract":"Alternative matrices, especially exhaled breath (EB), have gained increasing attention for a few years. To interpret toxicological findings, knowledge on the toxicokinetic (TK) properties of a substance in EB is indispensable. Whilst such data are already accessible for various drugs (e.g. Δ9-tetrahydrocannabinol), they are still not available for new psychoactive substances, particularly synthetic cannabinoids (SCs). As SCs raise a high public health concern, the aim of this study was to assess these data in future TK studies in pigs. For this purpose, an in vitro sampling technique of EB was initially developed, being prospectively applied to anesthetized and ventilated pigs for the detection of SCs in a controlled and reproducible manner as exemplified by cumyl-5F-P7AICA. Furthermore, a method for the qualitative and quantitative detection of cumyl-5F-P7AICA in EB using glass fiber filters (GFF) was established und fully validated. Therefore, cumyl-5F-P7AICA (0.5 mg/mL in ethanol abs.) was initially nebulized using a ventilation machine and a breathing tube, as they are also used in surgeries. The aerosol was delivered into a simulated pig lung. To collect EB, a pump was connected to that part of the breathing tube, that contains EB (expiratory limb), and sampling was performed repeatedly (n=6) for 15 min (2 L EB/min) each using GFF. For extraction of the substance, the GFF were macerated with acetone and the remaining experimental components were rinsed with ethanol. After sample preparation, the extracts were analyzed by LC-MS/MS. In the complete experimental setup, about 40% of the initially nebulized cumyl-5F-P7AICA dose was found with 3.6 ± 1.3% being detected in the GFF. Regarding the comparably high loss of substance, the open ventilation system and a conceivable adsorption of the SC in the ventilator have to be considered. However, the herein introduced approach is promising to determine the TK properties of cumyl-5F-P7AICA in EB.","PeriodicalId":14905,"journal":{"name":"Journal of analytical toxicology","volume":"112 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142222667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multi-Class Analysis of 57 Drugs Quantitatively in Blood and Qualitatively in Urine by LC-MS/MS to Complement Comprehensive DFC, DUID and Postmortem Testing 利用 LC-MS/MS 对 57 种药物进行血液定量和尿液定性的多类别分析,以完善 DFC、DUID 和尸检的综合测试
IF 2.5 3区 医学
Journal of analytical toxicology Pub Date : 2024-09-10 DOI: 10.1093/jat/bkae077
Luke N Rodda, Megan Farley, Steven Towler, Tyler Devincenzi, Sue Pearring
{"title":"Multi-Class Analysis of 57 Drugs Quantitatively in Blood and Qualitatively in Urine by LC-MS/MS to Complement Comprehensive DFC, DUID and Postmortem Testing","authors":"Luke N Rodda, Megan Farley, Steven Towler, Tyler Devincenzi, Sue Pearring","doi":"10.1093/jat/bkae077","DOIUrl":"https://doi.org/10.1093/jat/bkae077","url":null,"abstract":"A streamlined LC-MS/MS method utilizing protein precipitation and filtration extraction was developed to consolidate analyses for drug-facilitated crime (DFC), postmortem investigations, and driving under the influence of drugs (DUID) testing. Fifty-seven target drug and metabolite analytes eluted in under 6-minutes and compromised of GHB precursors (1), hallucinogens (3), muscle relaxants (3), anticonvulsants (7), antidepressants (20), antihistamines (5), antipsychotics (11), antihypertensives and alpha-adrenergics (3), analgesics and anesthetics (3), and miscellaneous (1) in blood (quantitatively) and urine (qualitatively). Limits of detection were set to meet the more challenging sensitivity requirements for DFC, and are therefore also suitable for postmortem investigations, and other forensic casework, including DUID. Comprehensive ASB/ANSI validation was performed, and applicability studies examined 72 proficiency test blood and urine samples, along with 9,206 unique blood and urines samples from 5,192 authentic forensic cases that resulted in 11,961 positive analytes in samples. By expanding the analytical reach across multiple drug classes through a unified approach and screening a wider number of drugs, the technique can identify substances that might have previously evaded detection, thereby enhancing laboratory efficiency by minimizing the need for multiple tests. When combined with a recently developed in-house method, this integrated testing strategy meets the testing requirements outlined in ASB/ANSI standards and recommendations for DFC, postmortem, and Tier 1 DUID analyses.","PeriodicalId":14905,"journal":{"name":"Journal of analytical toxicology","volume":"3 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142227548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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