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Kintz P, Ameline A. Testing for 2,4-dinitrophenol in human hair by LC-MS/MS and interpretation issues. J Pharm Biomed Anal 2024; 237:115795. [PMID: 37844362 DOI: 10.1016/j.jpba.2023.115795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/07/2023] [Accepted: 10/11/2023] [Indexed: 10/18/2023]
Abstract
2,4-dinitrophenol, initially developed for industrial purposes, is used in the synthesis of dyes and various drugs, including herbicides, fungicides and insecticides. Incidentally, it was discovered that 2,4-dinitrophenol increases human basal metabolic rate. As a consequence, people who want to loose weight can abuse 2,4-dinitrophenol. It is a compound of choice for bodybuilders who abuse it in combination with anabolic steroids and clenbuterol. Numerous deaths have been attributed to 2,4-dinitrophenol. Up to now, 2,4-dinitrophenol was never reported in hair. The authors present an original method to test for 2,4-dinitrophenol in hair after methanolic extraction using LC-MS/MS. The limit of detection of the procedure is 0.01 ng/mg and the method was fully validated in the range 0.1-50 ng/mg. 2,4-dinitrophenol tested positive in the brown hair of a subject deceased from acute poisoning at 5.15, 13.06 and 25.48 ng/mg in the 3 × 3 cm segments. As excessive sweating is associated to 2,4-dinitrophenol abuse, major contribution of this matrix must be taken into consideration when interpreting the data. In this case, there was a regular increase of 2,4-dinitrophenol concentration from root to tip. This specific pattern can be the consequence of sweat contamination, i.e., the older hair being for a longer time in contact with sweat.
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Affiliation(s)
- Pascal Kintz
- X-Pertise Consulting, 42 rue principale, 67206 Mittelhausbergen, France; Institut de Médecine légale, 11 rue Humann, 67000 Strasbourg, France.
| | - Alice Ameline
- Institut de Médecine légale, 11 rue Humann, 67000 Strasbourg, France
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2
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Suárez-García A, Álvarez-Freire I, Bermejo-Barrera AM, Cabarcos-Fernández P, Tabernero-Duque MJ. Disappearance of codeine, morphine and 6-MAM in hair after cessation of abuse. Forensic Sci Int 2023; 352:111855. [PMID: 37837845 DOI: 10.1016/j.forsciint.2023.111855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/18/2023] [Accepted: 10/08/2023] [Indexed: 10/16/2023]
Abstract
Research on the determination of drugs of abuse in hair has established that drugs can be detected in hair even long after cessation of use. The purpose of this study was to analyze hair samples from chronic opioid users who were beginning a controlled drug cessation program. The study population (n = 15) is involved in a drug rehabilitation program in Santiago de Compostela, Spain. Over a 6-month period, subjects provided hair samples at 2-month intervals, with the first sample collected on the day they began the program. Codeine, morphine, and 6-MAM were analyzed by GC/MS (LOQ = 0.2 ng/mg). Hair tresses were divided into 1 cm segments and analyzed for all analytes 0-1 cm corresponding to the proximal portion to the scalp Following cessation of opioid use, traces of codeine, morphine, and 6-MAM still remained in the newly growing hair segments for a specified period. After 2 months, still 27 % of the users tested positive, and at 4 months, 20 % were positive but only for 6-MAM. However, after 6 months of abstinence, the results were negative for all analytes.
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Affiliation(s)
- A Suárez-García
- Institute of Forensic Science, Forensic Toxicology Service, Faculty of Medicine, University of Santiago de Compostela, C/San Francisco s/n, 15782 Santiago de Compostela, Spain
| | - I Álvarez-Freire
- Institute of Forensic Science, Forensic Toxicology Service, Faculty of Medicine, University of Santiago de Compostela, C/San Francisco s/n, 15782 Santiago de Compostela, Spain.
| | - A M Bermejo-Barrera
- Institute of Forensic Science, Forensic Toxicology Service, Faculty of Medicine, University of Santiago de Compostela, C/San Francisco s/n, 15782 Santiago de Compostela, Spain
| | - P Cabarcos-Fernández
- Institute of Forensic Science, Forensic Toxicology Service, Faculty of Medicine, University of Santiago de Compostela, C/San Francisco s/n, 15782 Santiago de Compostela, Spain
| | - M J Tabernero-Duque
- Institute of Forensic Science, Forensic Toxicology Service, Faculty of Medicine, University of Santiago de Compostela, C/San Francisco s/n, 15782 Santiago de Compostela, Spain
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3
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Yue M, Kus L, Katta S, Su I, Li L, Haas DM, Quinney SK. Pharmacokinetics of Antidepressants in Pregnancy. J Clin Pharmacol 2023; 63 Suppl 1:S137-S158. [PMID: 37317494 PMCID: PMC10442696 DOI: 10.1002/jcph.2282] [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: 12/03/2022] [Accepted: 05/08/2023] [Indexed: 06/16/2023]
Abstract
Depression is common in pregnant women. However, the rate of antidepressant treatment in pregnancy is significantly lower than in nonpregnant women. Although some antidepressants may cause potential risks to the fetus, not treating or withdrawing the treatment is associated with relapsing and adverse pregnancy outcomes such as preterm birth. Pregnancy-associated physiologic changes can alter pharmacokinetics (PK) and may impact dosing requirements during pregnancy. However, pregnant women are largely excluded from PK studies. Dose extrapolation from the nonpregnant population could lead to ineffective doses or increased risk of adverse events. To better understand PK changes during pregnancy and guide dosing decisions, we conducted a literature review to catalog PK studies of antidepressants in pregnancy, with a focus on maternal PK differences from the nonpregnant population and fetal exposure. We identified 40 studies on 15 drugs, with most data from patients taking selective serotonin reuptake inhibitors and venlafaxine. Most of the studies have relatively poor quality, with small sample sizes, reporting concentrations at delivery only, a large amount of missing data, and not including times and adequate dose information. Only four studies collected multiple samples following a dose and reported PK parameters. In general, there are limited data available regarding PK of antidepressants in pregnancy and deficiencies in data reporting. Future studies should provide accurate information on drug dosing and timing of dose, PK sample collection, and individual-level PK data.
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Affiliation(s)
- Min Yue
- Purdue University College of Pharmacy, Indianapolis, IN
| | - Lauren Kus
- Indiana University School of Medicine, Indianapolis, IN
| | - Shilpa Katta
- School of Informatics and Computing, Indiana University, Purdue University Indianapolis, Indianapolis, IN
| | - Isaac Su
- Indiana University School of Medicine, Indianapolis, IN
| | - Lang Li
- The Ohio State University College of Medicine, Columbus, OH
| | - David M. Haas
- Indiana University School of Medicine, Indianapolis, IN
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4
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Aly SM, Gish A, Hakim F, Guelmi D, Mesli V, Hédouin V, Allorge D, Gaulier JM. In the case of extensively putrefied bodies, the analysis of entomological samples may support and complement the toxicological results obtained with other alternative matrices. Leg Med (Tokyo) 2023; 63:102261. [PMID: 37087785 DOI: 10.1016/j.legalmed.2023.102261] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 04/07/2023] [Accepted: 04/13/2023] [Indexed: 04/25/2023]
Abstract
Entomotoxicological analysis is not part of routine toxicological analysis. This work aims to present two cases to illustrate the potential of entomological samples as complementary matrices to identify substances in cases of advanced putrefaction. (Case#1) A woman wasexhumed after 14 months to ascertain the exact cause of death. She died after six weeks of hospitalization because of intestinal ischemia followed by multiorgan failure. (Case#2) The corpse of a woman, known to have a psychiatric disorder, was discovered in her apartment. The state of decomposition of the body was consistent with a post-mortem period of several weeks (approximately 6 weeks). Toxicological investigations were performed in the biological and entomological samples of case#1 (hair, adipocere, brain, and pupae) and of case#2 (hair, bone, flies, and pupae) using liquid chromatography with high-resolution mass spectrometry and tandem mass spectrometry detection methods. In case#1, several drugs and metabolites were detected. In particular, the pupae analyses allowed the objectification of morphine administration, whereas morphine was only found in adipocere, but not in hair nor in brain. In case#2, the pupae analyses allowed the detection of three metabolites of quetiapine, and the flies analyses allowed the detection of valpromide, which was only detected in hair. In conclusion, the pupae and flies analyses in these two cases complemented the results obtained in the other alternative biological samples, which may guide hypotheses about the possible causes of death. Nevertheless, additional data and case reports would be of benefit to assess the value of entomotoxicology in routine forensic investigations.
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Affiliation(s)
- Sanaa M Aly
- CHU Lille, Service de Toxicologie-Génopathies, UF de Toxicologie, Lille 59000, France; Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Alexandr Gish
- CHU Lille, Service de Toxicologie-Génopathies, UF de Toxicologie, Lille 59000, France; University of Lille, ULR 4483-IMPECS-IMPact de l'Environnement Chimique sur la Santé humaine, Lille 59000, France
| | - Florian Hakim
- CHU Lille, Service de Toxicologie-Génopathies, UF de Toxicologie, Lille 59000, France; University of Lille, ULR 4483-IMPECS-IMPact de l'Environnement Chimique sur la Santé humaine, Lille 59000, France
| | - Douniazad Guelmi
- CHU Lille, Service de Toxicologie-Génopathies, UF de Toxicologie, Lille 59000, France
| | - Vadim Mesli
- CHU Lille, Service de Médecine Légale, F-59000 Lille, France
| | - Valéry Hédouin
- CHU Lille, Service de Médecine Légale, F-59000 Lille, France
| | - Delphine Allorge
- CHU Lille, Service de Toxicologie-Génopathies, UF de Toxicologie, Lille 59000, France; University of Lille, ULR 4483-IMPECS-IMPact de l'Environnement Chimique sur la Santé humaine, Lille 59000, France
| | - Jean-Michel Gaulier
- CHU Lille, Service de Toxicologie-Génopathies, UF de Toxicologie, Lille 59000, France; University of Lille, ULR 4483-IMPECS-IMPact de l'Environnement Chimique sur la Santé humaine, Lille 59000, France.
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Zheng J, Wang X, Zhang J, Ren H, Zhao Y, Xiang P. Concentrations of LSD, 2-oxo-3-hydroxy-LSD, and iso-LSD in hair segments of 18 drug abusers. Forensic Sci Int 2023; 344:111578. [PMID: 36753839 DOI: 10.1016/j.forsciint.2023.111578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 01/10/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023]
Abstract
Lysergic acid diethylamide (LSD) is one of the most widely abused hallucinogens, which can alter consciousness, produce mental disorder, and cause harmful behavior. 1-Propionyl-LSD (1 P-LSD), a novel derivative of LSD, has the similar hallucinogenic effect. It is a control substance in several countries. 1 P-LSD can act as a prodrug for LSD and is rapidly hydrolyzed to LSD in humans. Therefore, LSD use should be confirmed by the absence of 1 P-LSD and in the detection of LSD. Here, we describe a LC-MS/MS method for the simultaneous extraction of LSD, iso-LSD, 2-oxo-3-hydroxy-LSD, and 1 P-LSD from hair. Hair samples (25 mg) were pulverized by cryogenic grinding in methanol. The limits of detection were 0.2-1 pg/mg and the limits of quantification were 0.5-2 pg/mg. This method was validated and applied to hair samples from 18 suspects who may have used LSD. Segmental hair analysis revealed a decrease in the LSD concentrations from the proximal to the distill end, while 1 P-LSD was not detected in any hair segments. The interpretation of hair analysis results of LSD still remains difficult. Nevertheless, concentrations of LSD and iso-LSD in human hair from 18 LSD users were reported. LSD concentrations were from <LOQ to 4.0 pg/mg (n = 18, median 1.5 pg/mg) in the proximal 0-3 cm segment, from <LOQ to 1.8 pg/mg (n = 8) in the 3-6 cm segment, and from <LOQ to 0.6 pg/mg (n = 4) in the 6-9 cm segment. Iso-LSD ranged from <LOQ to 1.4 pg/mg (n = 4) in the 0-3 cm segment and was detectable only in one 3-6 cm segment. To our knowledge, this is the first study to monitor LSD together with 1 P-LSD in hair.
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Affiliation(s)
- Jiaming Zheng
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110000, China; Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Science Platform, Shanghai 200063, China
| | - Xin Wang
- Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Science Platform, Shanghai 200063, China
| | - Jiali Zhang
- Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Science Platform, Shanghai 200063, China
| | - Hang Ren
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110000, China; Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Science Platform, Shanghai 200063, China
| | - Yunli Zhao
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110000, China.
| | - Ping Xiang
- Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Science Platform, Shanghai 200063, China.
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6
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Xu D, Ji J, Xiang P, Yan H, Zhang W, Shen M. Determination of 5 synthetic cannabinoids in hair by Segmental analysis using UHPLC-MS/MS and its application to eight polydrug abuse cases. Forensic Sci Int 2023; 346:111611. [PMID: 36931106 DOI: 10.1016/j.forsciint.2023.111611] [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: 11/14/2022] [Revised: 02/15/2023] [Accepted: 02/22/2023] [Indexed: 03/06/2023]
Abstract
In recent years, an increasing number of new synthetic cannabinoids (SCs) have appeared in the drug trade market. A UPLC-MS/MS method was developed to simultaneously identify five synthetic cannabinoids in 1 cm segment hair samples. The method was fully validated and confirmed to have good selectivity, accuracy, and precision, as well as satisfactory linearity within the calibrated range. The limit of quantification (LOD) was 0.5 pg/mg, and the lower limit of quantitation (LLOQ) was 1 pg/mg, with intraday and interday accuracies (bias) ranging from - 9.6-13.7%. The validated method was successfully used for qualitative and quantitative analysis of five SCs in authentic hair samples of eight SC abusers. SCs were detected in 8 cases at concentrations ranging from 1.5 to 632.9 pg/mg.
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Affiliation(s)
- Duoqi Xu
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai 200063, China
| | - Jiaojiao Ji
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai 200063, China; Department of Forensic Medicine of Shanghai Medical College, Fudan University, 138 Medical College Road, Shanghai 200433, China
| | - Ping Xiang
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai 200063, China
| | - Hui Yan
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai 200063, China
| | - Wenfang Zhang
- Forensic Science Service of Beijing Public Security Bureau. Key Laboratory of Forensic Toxicology, Ministry of Public Security, Beijing 100192, China.
| | - Min Shen
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai 200063, China.
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7
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Gicquel T, Wiart JF, Gish A, Hakim F, Allorge D, Gaulier JM. The Conditions and Quality of Postmortem Hair Sampling May Have a Subsequent Impact on the Interpretation of Toxicological Results in Hair. J Anal Toxicol 2023; 47:e17-e19. [PMID: 36125350 DOI: 10.1093/jat/bkac076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 08/29/2022] [Accepted: 09/19/2022] [Indexed: 11/12/2022] Open
Affiliation(s)
- Thomas Gicquel
- Laboratoire de Toxicologie Biologique et Médicolégale, CHU Rennes, Rennes 35033, France.,Institut NuMeCan (Nutrition, Metabolismes et Cancer), Univ. Rennes, INSERM, INRAE, CHU Rennes, Rennes 35033, France
| | | | - Alexandr Gish
- CHU Lille, Unité Fonctionnelle de Toxicologie, Lille 59037, France
| | - Florian Hakim
- CHU Lille, Unité Fonctionnelle de Toxicologie, Lille 59037, France.,ULR 4483-IMPECS-IMPact de l'Environnement Chimique sur la Santé humaine, Univ. Lille, Lille 59045, France
| | - Delphine Allorge
- CHU Lille, Unité Fonctionnelle de Toxicologie, Lille 59037, France.,ULR 4483-IMPECS-IMPact de l'Environnement Chimique sur la Santé humaine, Univ. Lille, Lille 59045, France
| | - Jean-Michel Gaulier
- CHU Lille, Unité Fonctionnelle de Toxicologie, Lille 59037, France.,ULR 4483-IMPECS-IMPact de l'Environnement Chimique sur la Santé humaine, Univ. Lille, Lille 59045, France
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8
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Scholz C, Baumgartner MR, Kraemer T, Binz TM. Single sample preparation for the simultaneous extraction of drugs, pharmaceuticals, cannabinoids and endogenous steroids in hair. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:4583-4591. [PMID: 36317647 DOI: 10.1039/d2ay01325h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Recently, we published a multi-analyte method for the simultaneous analysis of 116 drugs and pharmaceuticals including different substance groups like opioids, stimulants, benzodiazepines, z-drugs, antidepressants and neuroleptics based on a single sample workup followed by a single analytical measurement with LC-MS/MS. However, in some cases, additional analysis of further substance groups, such as cannabinoids and endogenous steroids, is required, which are analyzed in our laboratory using separate sample preparation and separate analytical methods. The goal of this study was to use the knowledge from the different sample preparations and combine them into a single sample preparation and extraction workflow for the simultaneous extraction of drugs, pharmaceuticals, cannabinoids, and endogenous steroids to be analyzed with the appropriate analytical methods. A partial validation of selected parameters such as selectivity, linearity, limit of quantification (LOQ), accuracy, precision and robustness for the different analytical methods was carried out and revalidated. In addition, comparative measurements of quality controls and authentic pools were performed and statistically evaluated using the unpaired t-test or the non-parametric Mann-Whitney test. The results using the newly established sample preparation and extraction were in good agreement with the original data. In conclusion, the newly established sample preparation is suitable for the combined extraction of drugs, pharmaceuticals, cannabinoids and endogenous steroids, and gives reliable results for quantification of various substances.
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Affiliation(s)
- Clementine Scholz
- Center for Forensic Hair Analysis, Zurich Institute of Forensic Medicine, University of Zurich, Kurvenstrasse, 17 8006 Zürich, Switzerland.
| | - Markus R Baumgartner
- Center for Forensic Hair Analysis, Zurich Institute of Forensic Medicine, University of Zurich, Kurvenstrasse, 17 8006 Zürich, Switzerland.
| | - Thomas Kraemer
- Department of Forensic Pharmacology and Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Zurich, Switzerland
| | - Tina M Binz
- Center for Forensic Hair Analysis, Zurich Institute of Forensic Medicine, University of Zurich, Kurvenstrasse, 17 8006 Zürich, Switzerland.
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Xu D, Ji J, Xiang P, Yan H, Duan G, Shen M. Time course of estazolam in single-strand hair based on micro-segmental analysis after controlled oral administration. Front Chem 2022; 10:996857. [PMID: 36324520 PMCID: PMC9619365 DOI: 10.3389/fchem.2022.996857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 08/12/2022] [Indexed: 11/30/2022] Open
Abstract
The mechanism of estazolam incorporation into hair was investigated by studying the time course of estazolam along single-strand hair after two oral administration of estazolam at 28 days interval. Estazolam in single hair segments 0.4 mm in length was verified and quantified by ultra-high-performance liquid chromatography coupled to tandem mass spectrometry (UPLC-MS/MS). The distributions of estazolam within a strand of hair (collected at 12 h, 28 days, and 56 days post-administration) were visualized by micro-segmental analysis. The highest estazolam concentration (1.5-9.9 pg/mm) was detected in the hair bulb region (S1), and it then decreased through the hair shaft to the distal end, with a small fluctuation (0.3-3 pg/mm) near the junction of the hair roots and shafts (S4-S7) 12 h after drug intake. These findings suggested that the incorporation of estazolam occurred in two regions, mainly in the hair bulb and to a lesser extent in the upper dermis zone. Models using internal temporal markers (TIMs) and temporal intervals (TIs) were constructed to estimate the day of estazolam ingestion. The estimation accuracy was within an average error of 1.7 mm and 3.0 mm between the calculated and actual positions, based on the TIMs and TIs 56 days after estazolam intake. These findings can help in further elucidation of the drug incorporation mechanism, which is crucial for interpreting hair analysis results used to reveal individual drug-use history.
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Affiliation(s)
- Duoqi Xu
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai, China
| | - Jiaojiao Ji
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai, China
- Department of Forensic Medicine of Shanghai Medical College, Fudan University, Shanghai, China
| | - Ping Xiang
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai, China
| | - Hui Yan
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai, China
| | - Gengli Duan
- Department of Phamaceutical Analysis, School of Phamacy, Fudan University, Shanghai, China
| | - Min Shen
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai, China
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10
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Xu D, Ji J, Xiang P, Yan H, Shen M. Two DFSA cases involving midazolam clarified by the micro-segmental hair analyses. Forensic Toxicol 2022; 40:374-382. [PMID: 36454413 DOI: 10.1007/s11419-022-00621-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 02/23/2022] [Indexed: 01/26/2023]
Abstract
PURPOSE In this study, an analytical procedure to identify trace amounts of drug in hair based on micro-segmental hair analysis was presented. The method also can be used to estimate the time of drug ingestion at daily precision by cutting a single hair into sub-millimeter segments which correspond to daily hair growth. METHODS A method was established for efficient extraction of midazolam, one of the most frequently detected compound in drug-facilitated sexual assault (DFSA) cases, from each 0.4-mm hair segment and validated by ultra-high performance liquid chromatography coupled to tandem mass spectrometry (UPLC-MS/MS). Moreover, two DFSA cases were used to compare the micro-segmental hair analysis with the 1- cm segmental analysis method. RESULTS The validation showed a lower limit of quantification of 0.5 pg/mm for midazolam, with intraday and interday accuracies (bias) from - 5.2 to 0.9%. The micro-segmental hair analysis method was applied to proximal 1-cm hair segment including hair bulbs in two DFSA cases. The micro-segmental hair analysis results in case 1 showed midazolam in the S15-S17 (5.6-6.8 mm from hair bulb) in a concentration range from 0.5 to 0.9 pg/mm, and the concentrations of midazolam in all hair micro-segments (0-1 cm from the scalp) in case 2 were from 0.5 to 2.0 pg/mm. CONCLUSIONS Comparison with the conventional method revealed that micro-segmental hair analysis may enhance the utility of hair drug testing and strengthen probative force in DFSA cases.
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Affiliation(s)
- Duoqi Xu
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai, 200063, China
| | - Jiaojiao Ji
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai, 200063, China.,Department of Forensic Medicine of Shanghai Medical College, Fudan University, 138 Medical College Road, Shanghai, 200433, China
| | - Ping Xiang
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai, 200063, China
| | - Hui Yan
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai, 200063, China
| | - Min Shen
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai, 200063, China.
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11
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Rygaard K, Nielsen MKK, Linnet K, Banner J, Johansen SS. Concentrations of citalopram and escitalopram in postmortem hair segments. Forensic Sci Int 2022; 336:111349. [PMID: 35660811 DOI: 10.1016/j.forsciint.2022.111349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/17/2022] [Accepted: 05/21/2022] [Indexed: 11/04/2022]
Abstract
Hair analysis can provide information regarding previous drug intake and use patterns, as the drugs consumed are incorporated into the hair. Therefore, reference values for drugs in hair are valuable in forensic investigations, especially when evaluating drug intake and assessing drug tolerance. The aim of the study was to determine concentrations of citalopram, escitalopram, and their primary metabolites in hair segments from deceased individuals with mental illness. Concentrations in up to six months prior to death were evaluated and compared with the estimated daily doses. Hair samples collected from 47 deceased individuals, were segmented in one to six 1 cm segments, and extracted overnight in medium. The concentrations in hair were quantified via ultra-high-performance liquid chromatography-tandem mass spectrometry. Following this quantification, the extracts were reanalyzed qualitatively using a chiral method to distinguish between citalopram and escitalopram intake. We found hair concentrations (10-90 percentile (perc.)) of citalopram from 0.12 to 67 ng/mg with a median of 8.2 ng/mg (N = 40 individuals, n = 182 segments) and of escitalopram from 0.027 to 7.0 ng/mg with a median of 3.9 ng/mg (N = 4, n = 23). The metabolite-to-drug ratios in hair (10-90 perc.) of citalopram were 0.091-0.57 with a median of 0.30 (N = 39) and of escitalopram were 0.053-0.63 with a median of 0.41 (N = 3). No correlations were found between concentrations in the hair and the estimated daily dose. However, our results indicate higher concentrations in dark hair compared to light hair, given the estimated doses, and thus an influence of hair color on the results. A significant positive correlation was found between the concentration of citalopram in the proximal segment and the blood concentrations. The median R/S-ratio of citalopram in hair was 1.5 and was similar to previously reported ratios in blood. In the present study, we report concentrations of citalopram and escitalopram in postmortem hair and their relation to an estimated daily dose and thus contribute valuable information in forensic investigations.
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Affiliation(s)
- Karen Rygaard
- Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Frederik V's vej 11, DK-2100, Denmark.
| | - Marie Katrine Klose Nielsen
- Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Frederik V's vej 11, DK-2100, Denmark
| | - Kristian Linnet
- Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Frederik V's vej 11, DK-2100, Denmark
| | - Jytte Banner
- Section of Forensic Pathology, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Frederik V's vej 11, DK-2100, Denmark
| | - Sys Stybe Johansen
- Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Frederik V's vej 11, DK-2100, Denmark
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12
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Yang H, Xiang P, Yu M, Zou D, Fan X, Wang X, Liu W. Confirmation of Gelsemium elegans poisoning by UHPLC-MS/MS analysis of koumine, gelsemine, and gelsenicine in hair. J Pharm Biomed Anal 2021; 210:114546. [PMID: 34972069 DOI: 10.1016/j.jpba.2021.114546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/15/2021] [Accepted: 12/19/2021] [Indexed: 10/19/2022]
Abstract
A sensitive, accurate, simple, and rapid analytical UHPLC-MS/MS method was developed for identification and quantification of koumine, gelsemine, and gelsenicine in human hair. Approximately 10 mg of hair was extracted with methanol by cryogenic grinding. The limits of detection (LODs) ranged from 1 to 5 pg/mg, and the limits of quantitation (LOQs) ranged from 2 to 10 pg/mg. The method was linear over a concentration range from the LOQs to 1000 pg/mg, and the linear correlation (R2) of the calibration curves was above 0.998 for all three analytes. The bias varied from -6.5-13.1%, while the intra- and inter-day precision relative standard deviation (RSD) values were 4.3-12.4% and 3.7-13.2%, respectively. Recoveries ranged from 79.3% to 103.5%, and matrix effects ranged from 74.3% to 105.5%. The described method was used for the quantitative determination of koumine, gelsemine, and gelsenicine in a human hair sample from a Gelsemium elegans poisoning case. The highest concentrations of koumine, gelsemine, and gelsenicine were 27.2, 18.1, and 4.2 pg/mg, respectively, and corresponded to the segment associated with the ingestion period. To our knowledge, this is the first study to describe hair analysis in a G. elegans poisoning case and to provide quantitative toxicological findings.
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Affiliation(s)
- Huan Yang
- Department of Forensic Toxicology, Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Science Platform, Academy of Forensic Science, Shanghai 200063, China; School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110000, China
| | - Ping Xiang
- Department of Forensic Toxicology, Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Science Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Miao Yu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110000, China
| | - Donghua Zou
- Department of Forensic Pathology, Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Science Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Xianyu Fan
- Department of Forensic Toxicology, Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Science Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Xin Wang
- Department of Forensic Toxicology, Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Science Platform, Academy of Forensic Science, Shanghai 200063, China.
| | - Wei Liu
- Department of Forensic Toxicology, Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Science Platform, Academy of Forensic Science, Shanghai 200063, China.
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13
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Rygaard K, Linnet K, Johansen SS. A Systematic Review of Metabolite-to-Drug Ratios of Pharmaceuticals in Hair for Forensic Investigations. Metabolites 2021; 11:686. [PMID: 34677401 PMCID: PMC8539361 DOI: 10.3390/metabo11100686] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/24/2021] [Accepted: 10/04/2021] [Indexed: 12/04/2022] Open
Abstract
After ingestion, consumed drugs and their metabolites are incorporated into hair, which has a long detection window, ranging up to months. Therefore, in addition to conventional blood and urine analyses, hair analysis can provide useful information on long-term drug exposure. Meta-bolite-to-drug (MD) ratios are helpful in interpreting hair results, as they provide useful information on drug metabolism and can be used to distinguish drug use from external contamination, which is otherwise a limitation in hair analysis. Despite this, the MD ratios of a wide range of pharmaceuticals have scarcely been explored. This review aims to provide an overview of MD ratios in hair in a range of pharmaceuticals of interest to forensic toxicology, such as antipsychotic drugs, antidepressant drugs, benzodiazepines, common opiates/opioids, etc. The factors influencing the ratio were evaluated. MD ratios of 41 pharmaceuticals were reported from almost 100 studies. MD ratios below 1 were frequently reported, indicating higher concentrations of the parent pharmaceutical than of its metabolite in hair, but wide-ranging MD ratios of the majority of pharmaceuticals were found. Intra- and interindividual differences and compound properties were variables possibly contributing to this. This overview presents guidance for future comparison and evaluation of MD ratios of pharmaceuticals.
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Affiliation(s)
- Karen Rygaard
- Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Frederik V’s Vej 11, 2100 Copenhagen, Denmark; (K.L.); (S.S.J.)
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14
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Madry MM, Poetzsch SN, Steuer AE, Kraemer T, Baumgartner MR. Significance of Metabolite Ratios in the Interpretation of Segmental Hair Testing Results-Differentiation of Single from Chronic Morphine Use in a Case Series. Metabolites 2021; 11:metabo11080557. [PMID: 34436497 PMCID: PMC8400298 DOI: 10.3390/metabo11080557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 11/25/2022] Open
Abstract
In morphine intoxication cases, forensic toxicologists are frequently confronted with the question of if the individual was opioid-tolerant or opioid-naïve, which can be investigated by hair analysis. However, interpretation of results can be challenging. Here, we report on hair testing for morphine and its metabolite hydromorphone following morphine intoxication without tolerance and upon chronic use. Two consecutive hair samples were collected after a non-fatal intoxication. Analysis comprised short hair segments and their initial wash water solutions. In the intoxications, morphine and hydromorphone levels were 3.3 to 56 pg/mg and at maximum 9.8 pg/mg, respectively. Both levels and hydromorphone to morphine ratios were significantly lower compared to chronic morphine use. In the non-fatal intoxication, the highest hydromorphone to morphine ratio was obtained in the segment corresponding to the time of intoxication. Morphine ratios of wash to hair were significantly higher in the intoxications compared to chronic use, being indicative of sweat/sebum contamination. We recommend including the analysis of hydromorphone and the initial wash solution in cases of morphine intoxications. Our study demonstrates that hydromorphone to morphine ratios can help in distinguishing single from chronic morphine use and in estimating the period of exposure when a consecutive hair sample can be collected in survived intoxications.
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Affiliation(s)
- Milena M. Madry
- Center for Forensic Hair Analytics, Zurich Institute of Forensic Medicine, University of Zurich, 8006 Zurich, Switzerland;
- Correspondence:
| | - Sandra N. Poetzsch
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, 8057 Zurich, Switzerland; (S.N.P.); (A.E.S.); (T.K.)
| | - Andrea E. Steuer
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, 8057 Zurich, Switzerland; (S.N.P.); (A.E.S.); (T.K.)
| | - Thomas Kraemer
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, 8057 Zurich, Switzerland; (S.N.P.); (A.E.S.); (T.K.)
| | - Markus R. Baumgartner
- Center for Forensic Hair Analytics, Zurich Institute of Forensic Medicine, University of Zurich, 8006 Zurich, Switzerland;
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15
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Kintz P, Raul JS, Ameline A. The use of multiple keratinous matrices (head hair, axillary hair, and toenail clippings) can help narrowing a period of drug exposure: experience with a criminal case involving 25I-NBOMe and 4-MMC. Int J Legal Med 2021; 135:1461-1465. [PMID: 33527191 DOI: 10.1007/s00414-021-02511-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 01/14/2021] [Indexed: 11/26/2022]
Abstract
The objective of this publication is to present the interest of collecting several keratinous specimens in order to document possible drug impairment at the time of the assault, when knowledge solely occurred 7 months after. A subject committed a murder and within minutes after the crime self-inflicted serious wounds. He was charged to the hospital where he slowly recovered. After several weeks, he was sent to prison. During this period, intelligence indicated possible drug impairment at the time of the assault after using 25I-NBOMe and 4-MMC. Head hair (4 cm), axillary hair, and toenails were collected 7 months after the crime. New psychoactive substances were tested in each specimen using LC-MS/MS, which revealed the presence of 25I-NBOMe and 4-MMC in axillary hair (2 and 6 pg/mg) and toenails (1 and 5 pg/mg). However, the perpetrator claimed that the positive findings were due to contamination in prison. Therefore, the head hair was also tested and results returned negative (LOQ at 1 pg/mg), demonstrating absence of contamination during the last 4 months before collection. Combining the window of drug detection in axillary hair (about 4 to 8 months) and the one of toenail clippings (up to 8 months), and excluding drug exposure during the previous 4 months as well as external contamination as the head hair results were negative, allowed us to conclude that the positive findings in axillary hair and toenails are more likely than not consistent with consumption of both 25I-NBOMe and 4-MMC at the time of the crime.
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Affiliation(s)
- Pascal Kintz
- X-Pertise Consulting, 42 rue principale, 67206, Mittelhausbergen, France.
- Institut de médecine légale, 11 rue Humann, 67000, Strasbourg, France.
| | | | - Alice Ameline
- Institut de médecine légale, 11 rue Humann, 67000, Strasbourg, France
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16
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Johansen SS, Dang LTVL, Nielsen MKK, Haage P, Kugelberg FC, Kronstrand R. Temporal patterns of tramadol in hair after a single dose. Forensic Sci Int 2020; 316:110546. [DOI: 10.1016/j.forsciint.2020.110546] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/07/2020] [Accepted: 10/10/2020] [Indexed: 01/26/2023]
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17
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Zhuo Y, Xiang P, Wu J, Wang X. Segmental hair analysis for flunitrazepam and 7-aminoflunitrazepam in users: a comparison to existing literature. Forensic Sci Res 2020; 7:299-307. [PMID: 35784426 PMCID: PMC9245979 DOI: 10.1080/20961790.2020.1824600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
The availability of more quantitative data on flunitrazepam (FLU) and 7-aminoflunitrazepam (7AF) would aid in obtaining a better understanding of the interpretation of FLU concentrations in human hair. The purpose of this study was to provide concentrations of FLU and 7AF in hair segments of 22 FLU users. Quantitative data regarding hair concentrations of FLU and 7AF from various types of cases were also reviewed to give a comprehensive overview of the comparability of different studies. Three to six 1 cm segments of scalp hair from 22 FLU users were analyzed by a liquid chromatography–tandem mass spectrometry (LC–MS/MS) method. FLU and its metabolite were confirmed in the hair segments from all cases. Concentrations of FLU and 7AF in the segments ranged from 0.01–0.16 ng/mg (median of 0.03) and 0.01–0.34 ng/mg (median of 0.09), respectively. Most cases had FLU and 7AF distributions along the hair segments that were suggestive of repeated drug use. A summary of the published concentrations gives valuable data and can assist forensic investigators in their estimations of drug use history and patterns.Key points A method using LC–MS/MS to quantify flunitrazepam and its metabolite was described. Segmental analysis of flunitrazepam and its metabolite in human hair was reported. A comprehensive overview of quantitative data was given.
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Affiliation(s)
- Yue Zhuo
- Department of Forensic Medicine, Guizhou Medical University, Guiyang, China
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai, China
| | - Ping Xiang
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai, China
| | - Jingjie Wu
- Department of Forensic Medicine, Guizhou Medical University, Guiyang, China
- Institute of Forensic Medicine, Guizhou Police College, Guiyang, China
| | - Xin Wang
- Department of Forensic Toxicology, Academy of Forensic Science, Shanghai Key Laboratory of Forensic Medicine, Shanghai, China
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18
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Kintz P. Negative hair test result after long-term drug use. About a case involving morphine and literature review. Clin Chem Lab Med 2020; 59:267-273. [PMID: 32692696 DOI: 10.1515/cclm-2020-0950] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 07/10/2020] [Indexed: 01/03/2023]
Abstract
Although it has been accepted by most scientists that drugs circulating in blood are eligible to hair incorporation, this cannot be considered as a general statement. A 42-year old man was found dead in his swimming pool. He was living alone, and seen alive 2 days before by a neighbour. Femoral blood, cardiac blood and hair were collected during body examination. Free morphine was identified in femoral blood at 28 ng/mL, corresponding to his treatment for chronic pain (3 × 5 mg daily for 4 months). However, with a limit of quantitation (LOQ) at 10 pg/mg, segmental hair testing (3 × 1 cm) for morphine was negative. In this paper, the author has reviewed the different factors which can be responsible of this discrepancy. Several variables can influence the detection of a drug in hair and the author has listed reasons that can account for the absence of analytical response in hair after drug administration. The drug may not be incorporated in hair. That is the case for large bio-molecules, such as hormones, which cannot be transferred from the blood capillaries to growing cells of hair. Cosmetic treatments (perming, colouring, bleaching) or environmental aggressions (ultraviolet radiation, thermal application) will always reduce the concentrations. In this case, the lack of morphine detection was attributed to the effects of chlorinated water from the swimming pool. A negative hair result is also a result. However, this can be interpreted in three different ways: 1. the owner of the hair did not take or was not exposed to the specific drug, 2. the procedure is not sensitive enough to detect the drug, or 3. something happened after drug incorporation (cosmetic treatment, environmental influence).
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Affiliation(s)
- Pascal Kintz
- X-Pertise Consulting, 42 rue principale, 67206, Mittelhausbergen, France.,Institut de médecine légale, 11 rue Humann, 67000, Strasbourg, France
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19
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Wang X, Zhuo Y, Tang X, Qiang H, Liu W, Wu H, Xiang P, Duan G, Shen M. Segmental analysis of antidepressant and antipsychotic drugs in the hair of schizophrenic patients. Drug Test Anal 2020; 12:472-484. [DOI: 10.1002/dta.2754] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 12/09/2019] [Accepted: 12/19/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Xin Wang
- Department of Forensic Toxicology, Shanghai Key Laboratory of Forensic MedicineShanghai Forensic Service Platform, Academy of Forensic Science Shanghai China
| | - Yue Zhuo
- Department of Forensic Toxicology, Shanghai Key Laboratory of Forensic MedicineShanghai Forensic Service Platform, Academy of Forensic Science Shanghai China
- Institute of Forensic ScienceGuizhou Medical University Guiyang China
| | - Xiaowei Tang
- Affiliated WuTaiShan Hospital of Medical College of Yangzhou University Yangzhou Jiangsu China
| | - Huosheng Qiang
- Department of Forensic Toxicology, Shanghai Key Laboratory of Forensic MedicineShanghai Forensic Service Platform, Academy of Forensic Science Shanghai China
| | - Wei Liu
- Department of Forensic Toxicology, Shanghai Key Laboratory of Forensic MedicineShanghai Forensic Service Platform, Academy of Forensic Science Shanghai China
| | - Hejian Wu
- Department of Forensic Toxicology, Shanghai Key Laboratory of Forensic MedicineShanghai Forensic Service Platform, Academy of Forensic Science Shanghai China
| | - Ping Xiang
- Department of Forensic Toxicology, Shanghai Key Laboratory of Forensic MedicineShanghai Forensic Service Platform, Academy of Forensic Science Shanghai China
| | - Gengli Duan
- Department of Pharmaceutical Analysis, School of PharmacyFudan University Shanghai China
| | - Min Shen
- Department of Forensic Toxicology, Shanghai Key Laboratory of Forensic MedicineShanghai Forensic Service Platform, Academy of Forensic Science Shanghai China
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20
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Methling M, Krumbiegel F, Hartwig S. Hair analysis of antidepressants and antipsychotics—Overview of quantitative data. Drug Test Anal 2020; 12:659-676. [DOI: 10.1002/dta.2784] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 02/18/2020] [Accepted: 02/21/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Maximilian Methling
- Institute of Legal Medicine and Forensic SciencesCharité‐University Medicine Berlin Berlin Germany
- Institute of Pharmacy, Pharmaceutical ChemistryFreie Universität Berlin Berlin Germany
| | - Franziska Krumbiegel
- Institute of Legal Medicine and Forensic SciencesCharité‐University Medicine Berlin Berlin Germany
| | - Sven Hartwig
- Institute of Legal Medicine and Forensic SciencesCharité‐University Medicine Berlin Berlin Germany
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21
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Concentrations of Antidepressants, Antipsychotics, and Benzodiazepines in Hair Samples from Postmortem Cases. ACTA ACUST UNITED AC 2020. [DOI: 10.1007/s42399-020-00235-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
AbstractCertain postmortem case constellations require intensive investigation of the pattern of drug use over a long period before death. Hair analysis of illicit drugs has been investigated intensively over past decades, but there is a lack of comprehensive data on hair concentrations for antidepressants, antipsychotics, and benzodiazepines. This study aimed to obtain data for these substances. A LC-MS/MS method was developed and validated for detection of 52 antidepressants, antipsychotics, benzodiazepines, and metabolites in hair. Hair samples from 442 postmortem cases at the Institute of Legal Medicine of the Charité-University Medicine Berlin were analyzed. Postmortem hair concentrations of 49 analytes were obtained in 420 of the cases. Hair sample segmentation was possible in 258 cases, and the segments were compared to see if the concentrations decreased or increased. Descriptive statistical data are presented for the segmented and non-segmented cases combined (n = 420) and only the segmented cases (n = 258). An overview of published data for the target substances in hair is given. Metabolite/parent drug ratios were investigated for 10 metabolite/parent drug pairs. Cases were identified that had positive findings in hair, blood, urine, and organ tissue. The comprehensive data on postmortem hair concentrations for antidepressants, antipsychotics, and benzodiazepines may help other investigators in their casework. Postmortem hair analysis results provide valuable information on the drug intake history before death. Pattern changes can indicate if drug intake stopped or increased before death. Results should be interpreted carefully and preferably include segmental analysis and metabolite/parent drug ratios to exclude possible contamination.
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