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Di Bartolomeo M, Čerňanová A, Petrušová V, Di Martino S, Hodosy J, Drago F, Micale V, D'Addario C. DNA methylation at cannabinoid type 1 and dopamine D2 receptor genes in saliva samples of psychotic subjects: Is there an effect of Cannabis use? Pharmacol Res 2024; 208:107343. [PMID: 39127265 DOI: 10.1016/j.phrs.2024.107343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 08/06/2024] [Accepted: 08/07/2024] [Indexed: 08/12/2024]
Abstract
Psychosis is a characterizing feature of many mental disorders that dramatically affects human thoughts and perceptions, influencing the ability to distinguish between what is real and what is not. Both genetic and environmental factors, such as stressful events or drug use, play a pivotal role in the development of symptomatology and therefore changes in the epigenome may be of relevance in modeling a psychotic phenotype. According to the well-documented dysregulation of endocannabinoid and dopaminergic system genes in schizophrenia, we investigated DNA methylation cannabinoid type 1 receptor (CNR1) and dopamine D2 receptor (DRD2) genes in saliva samples from psychotic subjects using pyrosequencing. The epigenetic mark was significantly higher and directly correlated for both genes in psychotic subjects compared to healthy controls. We also showed that these DNA methylation levels were lower in psychotic subjects reporting current delta-9-tetrahydrocannabinol (THC) consumption, a well-known risk factor for developing psychosis throughout the lifespan, resembling those of controls at least for the DRD2 gene. Overall, our data confirm the key role of CNR1 and DRD2 gene regulation in psychosis and suggest DNA methylation levels at specific CpG sites as potential biomarkers, but just in those psychotic subjects not consuming THC.
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Affiliation(s)
- Martina Di Bartolomeo
- Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo 64100, Italy.
| | - Andrea Čerňanová
- Psychiatric Department SMU, Slovak Medical University and University Hospital Bratislava, Ružinov, Bratislava 82101, Slovakia
| | - Veronika Petrušová
- Psychiatric Department SMU, Slovak Medical University and University Hospital Bratislava, Ružinov, Bratislava 82101, Slovakia
| | - Serena Di Martino
- Department of Biomedical and Biotechnological Sciences, Section of Pharmacology, University of Catania, Catania 95123, Italy
| | - Július Hodosy
- Emergency Department, University Hospital Bratislava, Ružinov, Bratislava 82101, Slovakia; Faculty of Medicine, Comenius University in Bratislava, Bratislava 81372, Slovakia
| | - Filippo Drago
- Department of Biomedical and Biotechnological Sciences, Section of Pharmacology, University of Catania, Catania 95123, Italy
| | - Vincenzo Micale
- Department of Biomedical and Biotechnological Sciences, Section of Pharmacology, University of Catania, Catania 95123, Italy
| | - Claudio D'Addario
- Department of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Teramo 64100, Italy; Department of Clinical Neuroscience, Karolinska Institutet, Stockholm 17177, Sweden.
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Frescura F, Stark T, Tiziani E, Di Martino S, Ruda-Kucerova J, Drago F, Ferraro L, Micale V, Beggiato S. Prenatal MAM exposure raises kynurenic acid levels in the prefrontal cortex of adult rats. Pharmacol Rep 2024; 76:887-894. [PMID: 38789891 DOI: 10.1007/s43440-024-00604-6] [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: 04/12/2024] [Revised: 05/15/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024]
Abstract
BACKGROUND Elevated brain levels of kynurenic acid (KYNA), a metabolite in the kynurenine pathway, are associated with cognitive dysfunctions, which are nowadays often considered as fundamental characteristics of several psychopathologies; however, the role of KYNA in mental illnesses, such as schizophrenia, is not fully elucidated. This study aimed to assess KYNA levels in the prefrontal cortex (PFC) of rats prenatally treated with methylazoxymethanol (MAM) acetate, i.e., a well-validated neurodevelopmental animal model of schizophrenia. The effects of an early pharmacological modulation of the endogenous cannabinoid system were also evaluated. METHODS Pregnant Sprague-Dawley rats were treated with MAM (22 mg/kg, ip) or its vehicle at gestational day 17. Male offspring were treated with the cannabinoid CB1 receptor antagonist/inverse agonist AM251 (0.5 mg/kg/day, ip) or with the typical antipsychotic haloperidol (0.6 mg/kg/day, ip) from postnatal day (PND) 19 to PND39. The locomotor activity and cognitive performance were assessed in the novel object recognition test and the open field test in adulthood. KYNA levels in the PFC of prenatally MAM-treated rats were also assessed. RESULTS A significant cognitive impairment was observed in prenatally MAM-treated rats (p < 0.01), which was associated with enhanced PFC KYNA levels (p < 0.05). The peripubertal AM251, but not haloperidol, treatment ameliorated the cognitive deficit (p < 0.05), by normalizing the PFC KYNA content in MAM rats. CONCLUSIONS The present findings suggest that the cognitive deficit observed in MAM rats may be related to enhanced PFC KYNA levels which could be, in turn, mediated by the activation of cannabinoid CB1 receptor. These results further support the modulation of brain KYNA levels as a potential therapeutic strategy to ameliorate the cognitive dysfunctions in schizophrenia.
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Affiliation(s)
- Francesca Frescura
- Department of Life Sciences and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121, Ferrara, Italy
| | - Tibor Stark
- Department Emotion Research, Max Planck Institute of Psychiatry, 80807, Munich, Germany
| | - Edoardo Tiziani
- Department of Life Sciences and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121, Ferrara, Italy
| | - Serena Di Martino
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Jana Ruda-Kucerova
- Department of Pharmacology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Filippo Drago
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Luca Ferraro
- Department of Life Sciences and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121, Ferrara, Italy.
- LTTA Centre, University of Ferrara, Ferrara, Italy.
- Psychiatric Department, School of Medicine, University of Maryland, Baltimore, MD, USA.
| | - Vincenzo Micale
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Sarah Beggiato
- Department of Life Sciences and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121, Ferrara, Italy
- Psychiatric Department, School of Medicine, University of Maryland, Baltimore, MD, USA
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Chou S, Wu R, Li M. Long-term impacts of prenatal maternal immune activation and postnatal maternal separation on maternal behavior in adult female rats: Relevance to postpartum mental disorders. Behav Brain Res 2024; 461:114831. [PMID: 38142861 PMCID: PMC10872411 DOI: 10.1016/j.bbr.2023.114831] [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: 11/12/2023] [Revised: 12/19/2023] [Accepted: 12/19/2023] [Indexed: 12/26/2023]
Abstract
Early life adversities are known to exert long-term negative impacts on psychological and brain functions in adulthood. The present work examined how a prenatal brain insult and a postnatal stressor independently or interactively influence the quality of maternal care of postpartum female rats and their cognitive and emotional functions, as a way to identify the behavioral dysfunctions underlying childhood trauma-induced postpartum mental disorders (as indexed by impaired maternal care). Sprague-Dawley female offspring born from mother rats exposed to polyinosinic:polycytidylic acid (PolyI:C, 4.0-6.0 mg/kg) intended to cause gestational maternal immune activation (MIA) or saline were subjected to a repeated maternal separation stress (RMS, 3 h/day) or no separation for 9 days in the first two weeks of life (a 2 × 2 design). When these offspring became mothers, their attentional filtering ability (as measured in the prepulse inhibition of acoustic startle reflex test), positive hedonic response (as measured in the sucrose preference test), and negative emotional response (as measured in the startle reflex and fear-potentiated startle test) were examined, along with their home-cage maternal behavior. Virgin littermates served as controls in all the behavioral tests except in maternal behavior. Results showed that mother rats who experienced RMS displayed impaired nest building and crouching/nursing activities. RMS also interacted with MIA to alter pup retrieval latency and startle reactivity, such that MIA-RMS dams demonstrated significantly slower pup retrieval latency and higher startle magnitude compared to either RMS-only and MIA-only mothers. MIA also disrupted attentional filtering ability, with significantly lower prepulse inhibition. However, neither prenatal MIA nor postnatal RMS impaired sucrose preference or the acquisition of fear-potentiated startle. These results indicate that prenatal stress and postnatal adversity could impair maternal behavior individually, and interact with each other, causing impairments in attention, emotion and maternal motivation.
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Affiliation(s)
- Shinnyi Chou
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
| | - Ruiyong Wu
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, China
| | - Ming Li
- Department of Psychology, Nanjing University, Nanjing, China.
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Roeder NM, Penman SL, Richardson BJ, Wang J, Freeman-Striegel L, Khan A, Pareek O, Weiss M, Mohr P, Eiden RD, Chakraborty S, Thanos PK. Vaporized Δ9-THC in utero results in reduced birthweight, increased locomotion, and altered wake-cycle activity dependent on dose, sex, and diet in the offspring. Life Sci 2024; 340:122447. [PMID: 38246518 DOI: 10.1016/j.lfs.2024.122447] [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: 09/26/2023] [Revised: 01/08/2024] [Accepted: 01/16/2024] [Indexed: 01/23/2024]
Abstract
AIMS Preclinical studies have found that chronic ∆9-tetrahydrocannabinol (THC) treatment is directly associated with weight gain when introduced during adolescence and adulthood, but the effect of prenatal THC is unclear. Clinical studies have demonstrated prenatal exposure to THC is a prospective predictor of increased health risks associated with obesity. Our study aims to examine prenatal THC impact on obesity risks in males and females throughout adolescence using a clinically relevant inhalation model. METHODS Pregnant rats were exposed to one of the following from gestational day 2 through birth: 10 mg THC, 40 mg THC, or air. Daily 10-min inhalations were conducted in each animal from 0900 to 1200. Offspring from each treatment group were given either a high-fat diet (HFD) or a normal diet (ND). Food and bodyweights were collected daily, while circadian activity, locomotion, and exercise were measured periodically (PND 21-60). Pregnancy weight gain and birth weight were collected to determine early-life developmental effects. RESULTS Rats prenatally treated with low-dose THC (LDTHC) generally had lower dark-cycle activity compared with control counterparts, but this altered activity was not observed at the higher dose of THC (HDTHC). In terms of open-field activity, THC doses displayed a general increase in locomotion. In addition, the LDTHC male rats in the ND showed significantly greater exploratory behavior. Prenatal THC had dose-dependent effects on maternal weight gain and birth weight. CONCLUSIONS Overall, our findings indicate there are some activity-related and developmental effects of prenatal THC, which may be related to obesity risks later in life.
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Affiliation(s)
- Nicole M Roeder
- Behavioral Neuropharmacology and Neuroimaging Laboratory on Addictions (BNNLA), Clinical Research Institute on Addictions, Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA; Department of Psychology, University at Buffalo, Buffalo, NY, USA
| | - Samantha L Penman
- Behavioral Neuropharmacology and Neuroimaging Laboratory on Addictions (BNNLA), Clinical Research Institute on Addictions, Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Brittany J Richardson
- Behavioral Neuropharmacology and Neuroimaging Laboratory on Addictions (BNNLA), Clinical Research Institute on Addictions, Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Jia Wang
- Department of Biostatistics, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, USA; Department of Biostatistics, University at Buffalo, Buffalo, NY, USA
| | - Lily Freeman-Striegel
- Behavioral Neuropharmacology and Neuroimaging Laboratory on Addictions (BNNLA), Clinical Research Institute on Addictions, Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Anas Khan
- Behavioral Neuropharmacology and Neuroimaging Laboratory on Addictions (BNNLA), Clinical Research Institute on Addictions, Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Ojas Pareek
- Behavioral Neuropharmacology and Neuroimaging Laboratory on Addictions (BNNLA), Clinical Research Institute on Addictions, Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Maia Weiss
- Behavioral Neuropharmacology and Neuroimaging Laboratory on Addictions (BNNLA), Clinical Research Institute on Addictions, Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Patrick Mohr
- Behavioral Neuropharmacology and Neuroimaging Laboratory on Addictions (BNNLA), Clinical Research Institute on Addictions, Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA
| | - Rina D Eiden
- Department of Psychology and Social Science Research Institute, The Pennsylvania State University, University Park, PA 16801, USA
| | - Saptarshi Chakraborty
- Department of Biostatistics, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, USA; Department of Biostatistics, University at Buffalo, Buffalo, NY, USA
| | - Panayotis K Thanos
- Behavioral Neuropharmacology and Neuroimaging Laboratory on Addictions (BNNLA), Clinical Research Institute on Addictions, Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA; Department of Psychology, University at Buffalo, Buffalo, NY, USA.
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Horska K, Skrede S, Kucera J, Kuzminova G, Suchy P, Micale V, Ruda‐Kucerova J. Olanzapine, but not haloperidol, exerts pronounced acute metabolic effects in the methylazoxymethanol rat model. CNS Neurosci Ther 2024; 30:e14565. [PMID: 38421095 PMCID: PMC10850806 DOI: 10.1111/cns.14565] [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: 06/23/2023] [Revised: 10/17/2023] [Accepted: 11/30/2023] [Indexed: 03/02/2024] Open
Abstract
AIM Widely used second-generation antipsychotics are associated with adverse metabolic effects, contributing to increased cardiovascular mortality. To develop strategies to prevent or treat adverse metabolic effects, preclinical models have a clear role in uncovering underlying molecular mechanisms. However, with few exceptions, preclinical studies have been performed in healthy animals, neglecting the contribution of dysmetabolic features inherent to psychotic disorders. METHODS In this study, methylazoxymethanol acetate (MAM) was prenatally administered to pregnant Sprague-Dawley rats at gestational day 17 to induce a well-validated neurodevelopmental model of schizophrenia mimicking its assumed pathogenesis with persistent phenotype. Against this background, the dysmetabolic effects of acute treatment with olanzapine and haloperidol were examined in female rats. RESULTS Prenatally MAM-exposed animals exhibited several metabolic features, including lipid disturbances. Half of the MAM rats exposed to olanzapine had pronounced serum lipid profile alteration compared to non-MAM controls, interpreted as a reflection of a delicate MAM-induced metabolic balance disrupted by olanzapine. In accordance with the drugs' clinical metabolic profiles, olanzapine-associated dysmetabolic effects were more pronounced than haloperidol-associated dysmetabolic effects in non-MAM rats and rats exposed to MAM. CONCLUSION Our results demonstrate metabolic vulnerability in female prenatally MAM-exposed rats, indicating that findings from healthy animals likely provide an underestimated impression of metabolic dysfunction associated with antipsychotics. In the context of metabolic disturbances, neurodevelopmental models possess a relevant background, and the search for adequate animal models should receive more attention within the field of experimental psychopharmacology.
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Affiliation(s)
- Katerina Horska
- Department of Pharmacology and Toxicology, Faculty of PharmacyMasaryk UniversityBrnoCzech Republic
| | - Silje Skrede
- Department of Clinical Science, Faculty of MedicineUniversity of BergenBergenNorway
- Section of Clinical Pharmacology, Department of Medical Biochemistry and PharmacologyHaukeland University HospitalBergenNorway
| | - Jan Kucera
- RECETOX, Faculty of ScienceMasaryk UniversityBrnoCzech Republic
- Department of Physical Activities and Health, Faculty of Sports StudiesMasaryk UniversityBrnoCzech Republic
| | - Gabriela Kuzminova
- Department of Pharmacology and Toxicology, Faculty of PharmacyMasaryk UniversityBrnoCzech Republic
| | - Pavel Suchy
- Department of Pharmacology and Toxicology, Faculty of PharmacyMasaryk UniversityBrnoCzech Republic
| | - Vincenzo Micale
- Department of Biomedical and Biotechnological Sciences, Section of PharmacologyUniversity of CataniaCataniaItaly
| | - Jana Ruda‐Kucerova
- Department of Pharmacology, Faculty of MedicineMasaryk UniversityBrnoCzech Republic
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Khanal P, Patil VS, Patil BM, Bhattacharya K, Shrivastava AK, Chaudhary RK, Singh L, Dwivedi PS, Harish DR, Roy S. The marijuana-schizophrenia multifaceted nexus: Connections and conundrums towards neurophysiology. Comput Biol Chem 2023; 107:107957. [PMID: 37729848 DOI: 10.1016/j.compbiolchem.2023.107957] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 09/03/2023] [Accepted: 09/07/2023] [Indexed: 09/22/2023]
Abstract
Delta-9-tetrahydrocannabinol, a component of marijuana, interacts with cannabinoid receptors in brain involved in memory, cognition, and emotional control. However, marijuana use and schizophrenia development is a complicated and contentious topic. As a result, more investigation is needed to understand this relationship. Through the functional enrichment analysis, we report the delta-9-tetrahydrocannabinol to manipulate the homeostatic biological process and molecular function of different macromolecules. Additionally, using molecular docking and subsequent processing for molecular simulations, we assessed the binding ability of delta-9-tetrahydrocannabinol with the estrogen-related protein, dopamine receptor 5, and hyaluronidase. It was found that delta-9-tetrahydrocannabinol may have an impact on the brain's endocannabinoid system and may trigger the schizophrenia progression in vulnerable people. Delta-9-tetrahydrocannabinol may interfere with the biological function of 18 proteins linked to schizophrenia and disrupt the synaptic transmission (dopamine, glutamine, and gamma-aminobutyric acid). It was discovered that it may affect lipid homeostasis, which is closely related to membrane integrity and synaptic plasticity. The negative control of cellular and metabolic processes, fatty acids binding /activity, and the manipulated endocannabinoid system (targeting cannabinoid receptors) were also concerned with delta-9-tetrahydrocannabinol. Hence, this may alter neurotransmitter signaling involved in memory, cognition, and emotional control, showing its direct impact on brain physiological processes. This may be one of the risk factors for schizophrenia development which is also closely tied to some other variables such as frequency, genetic vulnerability, dosage, and individual susceptibility.
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Affiliation(s)
- Pukar Khanal
- KLE College of Pharmacy Belagavi, KLE Academy of Higher Education and Research (KAHER), Belagavi 590010, India.
| | - Vishal S Patil
- KLE College of Pharmacy Belagavi, KLE Academy of Higher Education and Research (KAHER), Belagavi 590010, India; Indian Council of Medical Research-National Institute of Traditional Medicine, Belagavi 590010, India
| | - B M Patil
- KLE College of Pharmacy Belagavi, KLE Academy of Higher Education and Research (KAHER), Belagavi 590010, India; PRES's Pravara Rural College of Pharmacy Pravaranagar, Loni, Maharashtra, India.
| | - Kunal Bhattacharya
- Pratiksha Institute of Pharmaceutical Sciences, Guwahati, Assam, India; Royal School of Pharmacy, The Assam Royal Global University, Guwahati, Assam, India
| | - Amit Kumar Shrivastava
- Department of Oriental Pharmacy and Wonkwang-Oriental Medicine Research Institute, Wonkwang University, Iksan 570-749, South Korea
| | - Raushan K Chaudhary
- KLE College of Pharmacy Belagavi, KLE Academy of Higher Education and Research (KAHER), Belagavi 590010, India
| | - Lokjan Singh
- Department of Microbiology, Karnali Academy of Health Sciences, Teaching Hospital Jumla, Karnali, Nepal
| | - Prarambh Sr Dwivedi
- KLE College of Pharmacy Belagavi, KLE Academy of Higher Education and Research (KAHER), Belagavi 590010, India
| | - Darasaguppe R Harish
- Indian Council of Medical Research-National Institute of Traditional Medicine, Belagavi 590010, India
| | - Subarna Roy
- Indian Council of Medical Research-National Institute of Traditional Medicine, Belagavi 590010, India
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Hudzik TJ, Huestis MA, Rossi SS, Schumacher YO, Harcourt P, Budgett R, Stuart M, Tettey J, Mazzoni I, Rabin O, Danion A, Culler M, Handelsman D, Thevis M, Kinahan A. Cannabis and sport: A World Anti-Doping perspective. Addiction 2023; 118:2040-2042. [PMID: 37574590 DOI: 10.1111/add.16315] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 07/17/2023] [Indexed: 08/15/2023]
Affiliation(s)
| | - Marilyn A Huestis
- Institute for Emerging Health Professions, Thomas Jefferson University, Philadelphia, PA, USA
| | - Sabina Strano Rossi
- Department of Health Surveillance and Bioethics, Forensic Toxicology Laboratory, Università Cattolica del Sacro Cuore F. Policlinico Gemelli IRCCS, Rome, Italy
| | | | | | - Richard Budgett
- Medical and Scientific Department, International Olympic Committee, Lausanne, Switzerland
| | - Mark Stuart
- International Testing Agency-ITA, Lausanne, Switzerland
| | - Justice Tettey
- United Nations Office on Drugs and Crime, Vienna International Centre, Vienna, Austria
| | - Irene Mazzoni
- Science and Medicine Department, World Anti-Doping Agency, Montreal, Quebec, Canada
| | - Olivier Rabin
- Science and Medicine Department, World Anti-Doping Agency, Montreal, Quebec, Canada
| | - Anne Danion
- Science and Medicine Department, World Anti-Doping Agency, Montreal, Quebec, Canada
| | | | - David Handelsman
- The ANZAC Research Institute Concord Repatriation General Hospital Gate 3, Concord, NSW, Australia
| | - Mario Thevis
- Center for Preventive Doping Research, Institute of Biochemistry, German Sport University Cologne, Cologne, Germany
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