1
|
Tscharke B, Livingston M, O'Brien JW, Bade R, Thomas KV, Mueller JF, Hall W, Simpson BS, Jaunay E, Gerber C, White JM, Thai PK. Seven-years of alcohol consumption in Australia by wastewater analysis: Exploring patterns by remoteness and socioeconomic factors. Drug Alcohol Depend 2024; 259:111317. [PMID: 38692136 DOI: 10.1016/j.drugalcdep.2024.111317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 03/19/2024] [Accepted: 04/15/2024] [Indexed: 05/03/2024]
Abstract
BACKGROUND Wastewater analysis provides a complementary measure of alcohol use in whole communities. We assessed absolute differences and temporal trends in alcohol consumption by degree of remoteness and socioeconomics indicators in Australia from 2016 to 2023. METHODS Alcohol consumption estimates from 50 wastewater treatment plants (WWTP) in the Australian National Wastewater Drug Monitoring Program were used. Trends were analysed based on 1) site remoteness: Major Cities, Inner Regional and a combined remoteness category of Outer Regional and Remote, and 2) using two socioeconomic indexes from the Australian Bureau of Statistics (ABS) relating to advantage and disadvantage for Income, education, occupation, and housing. RESULTS Consumption estimates were similar for Major Cities and Inner Regional areas (14.3 and 14.4L/day/1000 people), but significantly higher in Outer Regional and Remote sites (18.6L/day/1000 people). Consumption was decreasing in Major cities by 4.5% annually, Inner Regional by 2.4%, and 3.5% in the combined Outer Regional and Remote category. Consumption estimates were higher in socioeconomically advantaged quartiles than those of lower advantage (0%-25% mean = 13.0, 75%-100% mean = 17.4). Consumption in all quartiles decreased significantly over the 7 year period with annual rates of decrease of 0.9%, 3.7%, 3.6%, and 3.0% for the lowest to highest quartile, respectively. CONCLUSIONS Declines in Australian alcohol consumption have been steeper in large urban areas than regional and remote areas. There were smaller annual decreases in the most socioeconomically disadvantaged areas. If continued, these trends may increase Australian health inequalities. Policy and prevention work should be appropriately targeted to produce more equitable long-term outcomes.
Collapse
Affiliation(s)
- Ben Tscharke
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia.
| | - Michael Livingston
- National Drug Research Institute, Curtin University, Bentley, WA 6845, Australia
| | - Jake W O'Brien
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia
| | - Richard Bade
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia
| | - Kevin V Thomas
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia
| | - Jochen F Mueller
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia
| | - Wayne Hall
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia; National Centre for Youth Substance Use Research (NCYSUR), The University of Queensland, Brisbane, QLD, Australia
| | - Bradley S Simpson
- Clinical and Health Sciences, University of South Australia, Adelaide, South Australia 5001, Australia
| | - Emma Jaunay
- Clinical and Health Sciences, University of South Australia, Adelaide, South Australia 5001, Australia
| | - Cobus Gerber
- Clinical and Health Sciences, University of South Australia, Adelaide, South Australia 5001, Australia
| | - Jason M White
- Clinical and Health Sciences, University of South Australia, Adelaide, South Australia 5001, Australia
| | - Phong K Thai
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia
| |
Collapse
|
2
|
Jaunay EL, Bade R, Paxton KR, Nadarajan D, Barry DC, Zhai Y, Tscharke BJ, O'Brien JW, Mueller J, White JM, Simpson BS, Gerber C. Monitoring the use of novel psychoactive substances in Australia by wastewater-based epidemiology. Sci Total Environ 2024; 919:170473. [PMID: 38286292 DOI: 10.1016/j.scitotenv.2024.170473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/23/2024] [Accepted: 01/24/2024] [Indexed: 01/31/2024]
Abstract
Users of novel psychoactive substances (NPS) are at risk, due to limited information about the toxicity and unpredictable effects of these compounds. Wastewater-based epidemiology (WBE) has been used as a tool to provide insight into NPS use at the population level. To understand the preferences and trends of NPS use in Australia, this study involved liquid chromatography mass spectrometry analysis of wastewater collected from Australian states and territories from February 2022 to February 2023. In total, 59 different NPS were included across two complementary analytical methods and covered up to 57 wastewater catchments over the study. The NPS detected in wastewater were 25-B-NBOMe, buphedrone, 1-benzylpiperazine (BZP), 3-chloromethcathinone, N,N-dimethylpentylone (N,N-DMP), N-ethylheptedrone, N-ethylpentylone, eutylone, 4F-phenibut, 2-fluoro deschloroketamine, hydroxetamine, mephedrone, methoxetamine, methylone, mitragynine, pentylone, phenibut, para-methoxyamphetamine (PMA), alpha-pyrrolidinovalerophenone (α-PVP) and valeryl fentanyl. The detection frequency for these NPS ranged from 3 % to 100 % of the sites analysed. A noticeable decreasing trend in eutylone detection frequency and mass loads was observed whilst simultaneously N,N-DMP and pentylone increased over the study period. The emergence of some NPS in wastewater pre-dates other sources of monitoring and provides further evidence that WBE can be used as an additional early warning system for alerting potential NPS use.
Collapse
Affiliation(s)
- Emma L Jaunay
- Clinical and Health Sciences, University of South Australia, Adelaide 5000, South Australia, Australia
| | - Richard Bade
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia
| | - Kara R Paxton
- Clinical and Health Sciences, University of South Australia, Adelaide 5000, South Australia, Australia
| | - Dhayaalini Nadarajan
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia
| | - Daniel C Barry
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia
| | - Yuze Zhai
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia
| | - Benjamin J Tscharke
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia
| | - Jake W O'Brien
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia
| | - Jochen Mueller
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia
| | - Jason M White
- Clinical and Health Sciences, University of South Australia, Adelaide 5000, South Australia, Australia
| | - Bradley S Simpson
- Clinical and Health Sciences, University of South Australia, Adelaide 5000, South Australia, Australia
| | - Cobus Gerber
- Clinical and Health Sciences, University of South Australia, Adelaide 5000, South Australia, Australia.
| |
Collapse
|
3
|
Wunderlich K, Suppa M, Gandini S, Lipski J, White JM, Del Marmol V. Risk Factors and Innovations in Risk Assessment for Melanoma, Basal Cell Carcinoma, and Squamous Cell Carcinoma. Cancers (Basel) 2024; 16:1016. [PMID: 38473375 DOI: 10.3390/cancers16051016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 02/22/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
Skin cancer is the most frequently diagnosed cancer globally and is preventable. Various risk factors contribute to different types of skin cancer, including melanoma, basal cell carcinoma, and squamous cell carcinoma. These risk factors encompass both extrinsic, such as UV exposure and behavioral components, and intrinsic factors, especially involving genetic predisposition. However, the specific risk factors vary among the skin cancer types, highlighting the importance of precise knowledge to facilitate appropriate early diagnosis and treatment for at-risk individuals. Better understanding of the individual risk factors has led to the development of risk scores, allowing the identification of individuals at particularly high risk. These advances contribute to improved prevention strategies, emphasizing the commitment to mitigating the impact of skin cancer.
Collapse
Affiliation(s)
- K Wunderlich
- Department of Dermatology, Hôpital Erasme, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - M Suppa
- Department of Dermatology, Hôpital Erasme, Université Libre de Bruxelles, 1070 Brussels, Belgium
- Department of Dermatology, Institute Jules Bordet, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - S Gandini
- Molecular and Pharmaco-Epidemiology Unit, Department of Experimental Oncology, European Institute of Oncology, IRCCS, 20139 Milan, Italy
| | - J Lipski
- Department of Dermatology, Hôpital Erasme, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - J M White
- Department of Dermatology, Hôpital Erasme, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - V Del Marmol
- Department of Dermatology, Hôpital Erasme, Université Libre de Bruxelles, 1070 Brussels, Belgium
- Department of Dermatology, Institute Jules Bordet, Université Libre de Bruxelles, 1070 Brussels, Belgium
| |
Collapse
|
4
|
Jaunay EL, Simpson BS, White JM, Gerber C. Amphetamine-type drug-related fatalities in the context of 8 years of methamphetamine use measured by wastewater analysis in South Australia. Drug Test Anal 2024. [PMID: 38197508 DOI: 10.1002/dta.3641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/19/2023] [Accepted: 12/22/2023] [Indexed: 01/11/2024]
Abstract
Methamphetamine is the illicit stimulant of choice in Australia. Countless initiatives have been employed to reduce methamphetamine use and drug-related harm. Wastewater analysis (WWA) has been used effectively as an objective measure of drug use at a population level and can be compared to indicators of harm, such as the number of drug-related fatalities. This paper attempts to describe methamphetamine use in the context of changes in levels measured in wastewater in South Australia whilst recognising considerable interventions over an 8-year period. Validated liquid chromatography-mass spectrometry methods were used to determine methamphetamine (and MDMA) levels in wastewater over an 8-year interval. The number of drug-induced deaths and driver fatalities involving methamphetamine (and MDMA) was presented and described in the context of changes in use measured by WWA. A rise in methamphetamine use according to WWA was evident up to 2017, followed by a gradual decrease to 2020 back to 2015 levels. Both driver fatalities and drug-induced deaths correlated well with use measured by WWA over the 8-year period. Multiple initiatives to curb supply, distribution and harm within the state and nationally have been implemented. The decrease in methamphetamine use after 2017 suggests that timely interventions have successfully reduced overall drug use and has led to fewer fatalities. This study shows that the response to increasing methamphetamine use in South Australia has resulted in a reversal of the upward trend in consumption and fewer drug-related fatalities.
Collapse
Affiliation(s)
- Emma L Jaunay
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Bradley S Simpson
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Jason M White
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, Australia
| | - Cobus Gerber
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, Australia
| |
Collapse
|
5
|
Jaunay EL, Simpson BS, White JM, Gerber C. Corrigendum to "Using wastewater-based epidemiology to evaluate the scale of use of opioids" [Sci. Total Environ. 897 (2023), 165148]. Sci Total Environ 2024; 906:167807. [PMID: 37862900 DOI: 10.1016/j.scitotenv.2023.167807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Affiliation(s)
- Emma L Jaunay
- Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | - Bradley S Simpson
- Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | - Jason M White
- Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | - Cobus Gerber
- Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia.
| |
Collapse
|
6
|
Jaunay EL, Simpson BS, White JM, Gerber C. Using wastewater-based epidemiology to evaluate the relative scale of use of opioids. Sci Total Environ 2023; 897:165148. [PMID: 37385507 DOI: 10.1016/j.scitotenv.2023.165148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/13/2023] [Accepted: 06/24/2023] [Indexed: 07/01/2023]
Abstract
Wastewater analysis (WWA) has been used as a tool to monitor population drug use, both pharmaceutical and illicit, for over 15 years. Policymakers, law enforcement and treatment services may use WWA-derived data to seek an objective understanding of the extent of drug use in specific areas. Therefore, wastewater data should best be reported in a meaningful form to allow those that are not experts in the field to compare the scale within and between drug classes. Excreted drug loads quantified in wastewater describe the mass of drug present in the sewer. Normalisation for wastewater flow and population is standard practice and critical for comparing drug loads between different catchments and indicates a transition to an epidemiological approach (wastewater-based epidemiology (WBE)). A further consideration is necessary to accurately compare the measured level of one drug to another. The standard dose of a drug taken to elicit a therapeutic effect will vary, with some compounds requiring microgram amounts, while others are administered in the gram range. When WBE data is expressed with units representing excreted or consumed loads without considering dose amounts, the scale of drug use when comparing multiple compounds becomes distorted. To demonstrate the utility and significance of including known excretion rates, potency and typical dose amounts into back-calculations of the measured drug load, this paper compares the levels of 5 prescribed (codeine, morphine, oxycodone, fentanyl and methadone) and 1 illicit (heroin) opioid from South Australian wastewater. The data is presented at each stage of the back-calculation starting with the total mass load measured, to consumed amounts factoring in excretion rates and finally the number of doses the load equates to. This is the first paper to describe the levels of 6 opioids measured in wastewater over a 4-year period in South Australia that demonstrate the relative scale of use.
Collapse
Affiliation(s)
- Emma L Jaunay
- Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | - Bradley S Simpson
- Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | - Jason M White
- Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | - Cobus Gerber
- Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia.
| |
Collapse
|
7
|
Bade R, Rousis N, Adhikari S, Baduel C, Bijlsma L, Bizani E, Boogaerts T, Burgard DA, Castiglioni S, Chappell A, Covaci A, Driver EM, Sodre FF, Fatta-Kassinos D, Galani A, Gerber C, Gracia-Lor E, Gracia-Marín E, Halden RU, Heath E, Hernandez F, Jaunay E, Lai FY, Lee HJ, Laimou-Geraniou M, Oh JE, Olafsdottir K, Phung K, Castro MP, Psichoudaki M, Shao X, Salgueiro-Gonzalez N, Feitosa RS, Gomes CS, Subedi B, Löve ASC, Thomaidis N, Tran D, van Nuijs A, Verovšek T, Wang D, White JM, Yargeau V, Zuccato E, Mueller JF. Three years of wastewater surveillance for new psychoactive substances from 16 countries. Water Res X 2023; 19:100179. [PMID: 37143710 PMCID: PMC10151418 DOI: 10.1016/j.wroa.2023.100179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/13/2023] [Accepted: 04/05/2023] [Indexed: 05/06/2023]
Abstract
The proliferation of new psychoactive substances (NPS) over recent years has made their surveillance complex. The analysis of raw municipal influent wastewater can allow a broader insight into community consumption patterns of NPS. This study examines data from an international wastewater surveillance program that collected and analysed influent wastewater samples from up to 47 sites in 16 countries between 2019 and 2022. Influent wastewater samples were collected over the New Year period and analysed using validated liquid chromatography - mass spectrometry methods. Over the three years, a total of 18 NPS were found in at least one site. Synthetic cathinones were the most found class followed by phenethylamines and designer benzodiazepines. Furthermore, two ketamine analogues, one plant based NPS (mitragynine) and methiopropamine were also quantified across the three years. This work demonstrates that NPS are used across different continents and countries with the use of some more evident in particular regions. For example, mitragynine has highest mass loads in sites in the United States, while eutylone and 3-methylmethcathinone increased considerably in New Zealand and in several European countries, respectively. Moreover, 2F-deschloroketamine, an analogue of ketamine, has emerged more recently and could be quantified in several sites, including one in China, where it is considered as one of the drugs of most concern. Finally, some NPS were detected in specific regions during the initial sampling campaigns and spread to additional sites by the third campaign. Hence, wastewater surveillance can provide an insight into temporal and spatial trends of NPS use.
Collapse
Affiliation(s)
- Richard Bade
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia
| | - Nikolaos Rousis
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia
| | - Sangeet Adhikari
- School of Sustainable Engineering and Built Environment, Arizona State University, Tempe, AZ, 85281, United States
- Biodesign Center for Environmental Health Engineering, Biodesign Institute, Arizona State University, 1001 S. McAllister Ave., Tempe, AZ 85281, United States
| | - Christine Baduel
- Université Grenoble Alpes, CNRS, IRD, Grenoble INP, IGE, Grenoble, France
| | - Lubertus Bijlsma
- Environmental and Public Health Analytical Chemistry, Research Institute for Pesticides and Water, University Jaume I, Avda, Sos Baynat s/n, E-12071 Castellón, Spain
| | - Erasmia Bizani
- Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Tim Boogaerts
- Toxicological Centre, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium
| | - Daniel A. Burgard
- Department of Chemistry and Biochemistry, University of Puget Sound, Tacoma, WA 98416, United States
| | - Sara Castiglioni
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Department of Environmental Health Sciences, Via Mario Negri 2, 20156, Milan, Italy
| | - Andrew Chappell
- Institute of Environmental Science and Research Limited (ESR), Christchurch Science Centre: 27 Creyke Road, Ilam, Christchurch 8041, New Zealand
| | - Adrian Covaci
- Toxicological Centre, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium
| | - Erin M. Driver
- Biodesign Center for Environmental Health Engineering, Biodesign Institute, Arizona State University, 1001 S. McAllister Ave., Tempe, AZ 85281, United States
- AquaVitas, LLC, Scottsdale, Arizona, 85251, United States
| | | | - Despo Fatta-Kassinos
- Nireas-International Water Research Centre and Department of Civil and Environmental Engineering, University of Cyprus, P.O. Box 20537, 1678, Nicosia, Cyprus
| | - Aikaterini Galani
- Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Cobus Gerber
- Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | - Emma Gracia-Lor
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, Avenida Complutense s/n, 28040 Madrid, Spain
| | - Elisa Gracia-Marín
- Environmental and Public Health Analytical Chemistry, Research Institute for Pesticides and Water, University Jaume I, Avda, Sos Baynat s/n, E-12071 Castellón, Spain
| | - Rolf U. Halden
- School of Sustainable Engineering and Built Environment, Arizona State University, Tempe, AZ, 85281, United States
- Biodesign Center for Environmental Health Engineering, Biodesign Institute, Arizona State University, 1001 S. McAllister Ave., Tempe, AZ 85281, United States
- AquaVitas, LLC, Scottsdale, Arizona, 85251, United States
- OneWaterOneHealth, Arizona State University Foundation, 1001 S. McAllister Avenue, Tempe, AZ 85287-8101, United States
| | - Ester Heath
- Jožef Stefan Institute and International Postgraduate School, Jamova 39, 1000 Ljubljana, Slovenia
| | - Felix Hernandez
- Environmental and Public Health Analytical Chemistry, Research Institute for Pesticides and Water, University Jaume I, Avda, Sos Baynat s/n, E-12071 Castellón, Spain
| | - Emma Jaunay
- Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | - Foon Yin Lai
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences (SLU), SE-75007 Uppsala, Sweden
| | - Heon-Jun Lee
- Department of Civil and Environmental Engineering, Pusan National University, Jangjeon-dong, Geumjeong-gu, Busan 46241, Republic of Korea
| | - Maria Laimou-Geraniou
- Jožef Stefan Institute and International Postgraduate School, Jamova 39, 1000 Ljubljana, Slovenia
| | - Jeong-Eun Oh
- Department of Civil and Environmental Engineering, Pusan National University, Jangjeon-dong, Geumjeong-gu, Busan 46241, Republic of Korea
| | - Kristin Olafsdottir
- University of Iceland, Department of Pharmacology and Toxicology, Hofsvallagata 53, 107 Reykjavik, Iceland
| | - Kaitlyn Phung
- Institute of Environmental Science and Research Limited (ESR), Christchurch Science Centre: 27 Creyke Road, Ilam, Christchurch 8041, New Zealand
| | - Marco Pineda Castro
- Department of Chemical Engineering, McGill University, Montreal, QC, Abbreviation:
| | - Magda Psichoudaki
- Nireas-International Water Research Centre and Department of Civil and Environmental Engineering, University of Cyprus, P.O. Box 20537, 1678, Nicosia, Cyprus
| | - Xueting Shao
- College of Environmental Science and Engineering, Dalian Maritime University, No. 1 Linghai Road, Dalian, 116026, P. R. China
| | - Noelia Salgueiro-Gonzalez
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Department of Environmental Health Sciences, Via Mario Negri 2, 20156, Milan, Italy
| | | | | | - Bikram Subedi
- Department of Chemistry, Murray State University, Murray, Kentucky 42071-3300, United States
| | - Arndís Sue Ching Löve
- University of Iceland, Department of Pharmacology and Toxicology, Hofsvallagata 53, 107 Reykjavik, Iceland
| | - Nikolaos Thomaidis
- Laboratory of Analytical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Diana Tran
- Department of Chemistry and Biochemistry, University of Puget Sound, Tacoma, WA 98416, United States
| | - Alexander van Nuijs
- Toxicological Centre, Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium
| | - Taja Verovšek
- Jožef Stefan Institute and International Postgraduate School, Jamova 39, 1000 Ljubljana, Slovenia
| | - Degao Wang
- College of Environmental Science and Engineering, Dalian Maritime University, No. 1 Linghai Road, Dalian, 116026, P. R. China
| | - Jason M. White
- Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | - Viviane Yargeau
- Department of Chemical Engineering, McGill University, Montreal, QC, Abbreviation:
| | - Ettore Zuccato
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Department of Environmental Health Sciences, Via Mario Negri 2, 20156, Milan, Italy
| | - Jochen F. Mueller
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, QLD 4102, Australia
| |
Collapse
|
8
|
Thai PK, Tscharke BJ, O'Brien J, Gartner C, Bade R, Gerber C, White JM, Zheng Q, Wang Z, Thomas KV, Mueller JF. Increased Nicotine Consumption in Australia During the First Months of the COVID-19 Pandemic. Nicotine Tob Res 2023; 25:1194-1197. [PMID: 36889356 DOI: 10.1093/ntr/ntac275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 10/31/2022] [Accepted: 11/29/2022] [Indexed: 03/10/2023]
Abstract
INTRODUCTION Mixed findings have been reported about the impact of the COVID-19 pandemic on smoking behavior in different populations. AIMS AND METHODS In this study, we aimed to quantify changes in smoking prevalence through the proxy of nicotine consumption in the Australian population from 2017 to 2020 inclusive. Estimates of nicotine consumption between 2017 and 2020 were retrieved from a national wastewater monitoring program that covers up to 50% of the Australian population. National sales data for nicotine replacement therapy (NRT) products from 2017 to 2020 were also acquired. Linear regression and pairwise comparison were conducted to identify data trends and to test differences between time periods. RESULTS The average consumption of nicotine in Australia decreased between 2017 and 2019 but increased in 2020. Estimated consumption in the first half of 2020 was significantly higher (~30%) than the previous period. Sales of NRT products increased gradually from 2017 to 2020 although sales in the first half of the year were consistently lower than in the second half. CONCLUSION Total nicotine consumption increased in Australia during the early stage of the pandemic in 2020. Increased nicotine consumption may be due to people managing higher stress levels, such as from loneliness due to control measures, and also greater opportunities to smoke/vape while working from home and during lockdowns in the early stage of the pandemic. IMPLICATIONS Tobacco and nicotine consumption have been decreasing in Australia but the COVID-19 pandemic may have temporarily disrupted this trend. In 2020, the higher impacts of lockdowns and working from home arrangements may have led to a temporary reversal of the previous downward trend in smoking during the early stage of the pandemic.
Collapse
Affiliation(s)
- Phong K Thai
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia
| | - Benjamin J Tscharke
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia
| | - Jake O'Brien
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia
| | - Coral Gartner
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia.,School of Public Health, The University of Queensland, Herston, QLD, 4006, Australia
| | - Richard Bade
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia.,Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | - Cobus Gerber
- Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | - Jason M White
- Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | - Qiuda Zheng
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia
| | - Zhe Wang
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia
| | - Kevin V Thomas
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia
| | - Jochen F Mueller
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland 4102, Australia
| |
Collapse
|
9
|
Othman AA, Simpson BS, Jaunay EL, White JM, Bade R, Gerber C. A method for improved detection of 8-isoprostaglandin F 2α/β and benzodiazepines in wastewater. Sci Total Environ 2022; 851:158061. [PMID: 35985578 DOI: 10.1016/j.scitotenv.2022.158061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/28/2022] [Accepted: 08/12/2022] [Indexed: 06/15/2023]
Abstract
Wastewater-based epidemiology is a tool incorporating biomarker analysis that can be used to monitor the health status of a population. Indicators of health include endogenous oxidative stress biomarkers and hormones, or exogenous such as alcohol and nicotine. 8-Iso-prostaglandin F2α/β is a biomarker of endogenous metabolism that can be used to measure oxidative stress in a community. Benzodiazepines are a harmful subclass of anxiolytics either prescribed or sourced illegally. The analysis of oxidative stress markers and uptake of benzodiazepines in wastewater may provide information about distress in the community. A method has been applied to detect 8-isoPGF2α/β and the illicit benzodiazepines clonazolam, flubromazolam and flualprazolam in addition to other prescribed benzodiazepines in wastewater. These substances have been sold as counterfeit pharmaceutical products, such as Xanax, which was formulated to include alprazolam. Deconjugation was initially performed on wastewater samples, followed by liquid-liquid extraction for isoprostanes and solid phase extraction for benzodiazepines to determine the total levels of these analytes. Limits of quantification were in the range of 0.5-2 ng/L for all the analytes except 8-isoPGF2α/β which was 50 ng/L. Stability, recovery and matrix effect studies were also conducted. Finally, this method was applied to influent wastewater from South Australia which showed the prevalence of 8-isoPGF2α/β and benzodiazepines.
Collapse
Affiliation(s)
- Ahmed Adel Othman
- University of South Australia, Clinical and Health Sciences (CHS), Health and Biomedical Innovation, South Australia 5000, Australia
| | - Bradley S Simpson
- University of South Australia, Clinical and Health Sciences (CHS), Health and Biomedical Innovation, South Australia 5000, Australia
| | - Emma L Jaunay
- University of South Australia, Clinical and Health Sciences (CHS), Health and Biomedical Innovation, South Australia 5000, Australia
| | - Jason M White
- University of South Australia, Clinical and Health Sciences (CHS), Health and Biomedical Innovation, South Australia 5000, Australia
| | - Richard Bade
- Queensland Alliance for Environmental Health Sciences (QAEHS), the University of Queensland, Woolloongabba, QLD 4102, Australia
| | - Cobus Gerber
- University of South Australia, Clinical and Health Sciences (CHS), Health and Biomedical Innovation, South Australia 5000, Australia.
| |
Collapse
|
10
|
Simpson BS, Jaunay EL, Ghetia M, Nguyen L, Bade R, White JM, Gerber C. Methcathinone in wastewater: Drug of choice, or artefact? Sci Total Environ 2022; 836:155696. [PMID: 35525340 DOI: 10.1016/j.scitotenv.2022.155696] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/28/2022] [Accepted: 04/30/2022] [Indexed: 06/14/2023]
Abstract
Methcathinone is a prevalent Novel Psychoactive Substance (NPS) used illicitly in some countries. Routine analysis of wastewater sampled from catchments in South Australia has shown a consistent low-level presence of the compound, inconsistent with NPS use. This raised the question was the occurrence due to regular use as a drug of choice or was it an artefact being produced from other sources in the sewer system? NPS consumption is generally sporadic and would therefore point to the origin of methcathinone in wastewater being due to in-sewer oxidation of its legal precursor, pseudoephedrine. The present study tested this hypothesis by comparing the levels of pseudoephedrine and methcathinone in wastewater samples collected bimonthly from 8 catchment sites in South Australia. Laboratory experiments exposing pseudoephedrine to common household oxidizing agents (hypochlorite and percarbonate) were also performed and the production of methcathinone was demonstrated and monitored. The results of this study showed that the level of pseudoephedrine and methcathinone measured in wastewater followed a similar pattern. However, there were periods when the levels of each compound diverged. Laboratory experiments showed that when exposed to various oxidizing agents, pseudoephedrine is oxidised to non-stoichiometric quantities of methcathinone. Although the use of methcathinone as a drug of choice remains possible, the results of this study indicate that the low and persistent level of methcathinone found in wastewater may arise in part from the oxidation of pseudoephedrine in the sewer system.
Collapse
Affiliation(s)
- Bradley S Simpson
- University of South Australia, Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide 5001, South Australia, Australia.
| | - Emma L Jaunay
- University of South Australia, Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide 5001, South Australia, Australia
| | - Maulik Ghetia
- University of South Australia, Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide 5001, South Australia, Australia
| | - Lynn Nguyen
- University of South Australia, Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide 5001, South Australia, Australia
| | - Richard Bade
- University of Queensland, Queensland Alliance for Environmental Health Sciences (QAEHS), Woolloongabba 4102, Queensland, Australia
| | - Jason M White
- University of South Australia, Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide 5001, South Australia, Australia
| | - Cobus Gerber
- University of South Australia, Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide 5001, South Australia, Australia
| |
Collapse
|
11
|
Pandopulos AJ, Simpson BS, White JM, Bade R, Gerber C. Partitioning of phytocannabinoids between faeces and water - Implications for wastewater-based epidemiology. Sci Total Environ 2022; 805:150269. [PMID: 34536871 DOI: 10.1016/j.scitotenv.2021.150269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/06/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Evaluating consumption estimates for lipophilic drugs in wastewater has proven to be a challenge. A common feature for these compounds is that they are excreted in faeces and in conjugated form in urine. Limited research with no obvious experimental evidence has been conducted to investigate the degree to which faecal-bound chemical markers contribute towards mass loads in wastewater. Cannabis chemical markers, known as phytocannabinoids, have been suggested in literature to fall into this category. In this study, cannabis users (n = 9) and non-cannabis users (n = 5) were recruited and provided faecal and urine samples after using the substance. The common chemical markers of cannabis consumption, 11-nor-9-carboxy-Δ9-tetrahydrocannabinol (THC-COOH), 11-hydroxy-Δ9-tetrahydrocannabinol (THC-OH), Δ9-tetrahydrocannabinol (THC) and cannabidiol (CBD), were investigated. An extraction method was developed for the cannabis chemical markers in faecal matter and urine and analysis was performed by liquid chromatography-mass spectrometry. Participant samples were used to establish adsorption and desorption dissolution kinetics models and to assess the equilibrium between faeces and water for these compounds. Equilibration between phases were found to be fast (<5 min). THC-COOH, which is the primary metabolite used in wastewater studies, partitioned ~40% in water while the less polar metabolite and CBD remained largely associated with the particulate fraction. Faecal loads of both cannabis users and non-users affected the total measured amounts of cannabinoids in the aqueous phase. The implications for wastewater monitoring of lipophilic substances are discussed.
Collapse
Affiliation(s)
- Aaron J Pandopulos
- University of South Australia, Clinical and Health Sciences (CHS), Health and Biomedical Innovation, South Australia 5000, Australia
| | - Bradley S Simpson
- University of South Australia, Clinical and Health Sciences (CHS), Health and Biomedical Innovation, South Australia 5000, Australia
| | - Jason M White
- University of South Australia, Clinical and Health Sciences (CHS), Health and Biomedical Innovation, South Australia 5000, Australia
| | - Richard Bade
- University of South Australia, Clinical and Health Sciences (CHS), Health and Biomedical Innovation, South Australia 5000, Australia
| | - Cobus Gerber
- University of South Australia, Clinical and Health Sciences (CHS), Health and Biomedical Innovation, South Australia 5000, Australia.
| |
Collapse
|
12
|
Pandopulos AJ, Simpson BS, Bade R, O'Brien JW, Yadav MK, White JM, Gerber C. A method and its application to determine the amount of cannabinoids in sewage sludge and biosolids. Environ Sci Pollut Res Int 2021; 28:59652-59664. [PMID: 34143389 DOI: 10.1007/s11356-021-14921-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 06/11/2021] [Indexed: 06/12/2023]
Abstract
Xenobiotic cannabinoids (phyto and synthetic) are highly lipophilic compounds and have been shown to accumulate within the particulate fraction of wastewater. Limited research has been conducted to investigate the occurrence of cannabinoids in sewage sludge and/or biosolids. The analysis of excreted cannabinoids from sewage sludge or biosolids can provide information about community health, as well as potentially long-term environmental impacts. In this study, a liquid-liquid extraction method was developed for the extraction and detection method for 50 cannabinoids by liquid chromatography-mass spectrometry, including the cannabis urinary biomarker 11-nor-9-carboxy-Δ9-tetrahydrocannabinol (THC-COOH), Δ9-tetrahydrocannabinol (THC), cannabidiol (CBD), and a variety of different generation synthetic cannabinoids and their respective metabolites. Method validation assessed criteria including linearity, selectivity, recovery, and matrix effects. The method was applied to samples collected from a conventional activated sludge reactor treatment facility from various stages of the treatment process. Three cannabinoids were abundant in primary sludge including THC, THC-COOH, and CBD, where THC was the most ubiquitous with concentrations up to 3200 μg kg-1. Only THC and THC-COOH were detectable in aged biosolids. The detection of some cannabinoids in biosolids demonstrated that these compounds are stable throughout the treatment process.
Collapse
Affiliation(s)
- Aaron J Pandopulos
- Clinical and Health Sciences (CHS), Health and Biomedical Innovation, University of South Australia, GPO Box 2471, Adelaide, South Australia, 5000, Australia
| | - Bradley S Simpson
- Clinical and Health Sciences (CHS), Health and Biomedical Innovation, University of South Australia, GPO Box 2471, Adelaide, South Australia, 5000, Australia
| | - Richard Bade
- Clinical and Health Sciences (CHS), Health and Biomedical Innovation, University of South Australia, GPO Box 2471, Adelaide, South Australia, 5000, Australia
- Queensland Alliance for Environmental Health Science (QAEHS), The University of Queensland, 20 Cornwall Street Woolloongabba, Brisbane, Queensland, 4102, Australia
| | - Jake W O'Brien
- Queensland Alliance for Environmental Health Science (QAEHS), The University of Queensland, 20 Cornwall Street Woolloongabba, Brisbane, Queensland, 4102, Australia
| | - Meena K Yadav
- Allwater, Adelaide Services Alliance, 77 Wakefield Street, Adelaide, 5000, Australia
| | - Jason M White
- Clinical and Health Sciences (CHS), Health and Biomedical Innovation, University of South Australia, GPO Box 2471, Adelaide, South Australia, 5000, Australia
| | - Cobus Gerber
- Clinical and Health Sciences (CHS), Health and Biomedical Innovation, University of South Australia, GPO Box 2471, Adelaide, South Australia, 5000, Australia.
| |
Collapse
|
13
|
Vogel AP, Pearson-Dennett V, Magee M, Wilcox RA, Esterman A, Thewlis D, White JM, Todd G. Adults with a history of recreational cannabis use have altered speech production. Drug Alcohol Depend 2021; 227:108963. [PMID: 34419853 DOI: 10.1016/j.drugalcdep.2021.108963] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 06/18/2021] [Accepted: 07/07/2021] [Indexed: 11/28/2022]
Abstract
Stereotypical depictions of speech in cannabis users often suggest slow, laboured output, yet objective evidence supporting this assumption is extremely limited. We know that depressants or hallucinogenic drugs such as cannabis can cause acute changes in communication and speech rate, but the long-lasting effects of cannabis use on speech are not well described. The aim of this study was to investigate speech in individuals with a history of recreational cannabis use compared to non-drug-using healthy controls. Speech samples were collected from a carefully described cohort of 31 adults with a history of cannabis use (but not use of illicit stimulant drugs) and 40 non-drug-using controls. Subjects completed simple and complex speech tasks including a monologue, a sustained vowel, saying the days of the week, and reading a phonetically balanced passage. Audio samples were analysed objectively using acoustic analysis for measures of timing, vocal control, and quality. Subtle differences in speech timing, vocal effort, and voice quality may exist between cannabis and control groups, however data remain equivocal. After controlling for lifetime alcohol and tobacco use and applying a false discovery rate, only spectral tilt (vocal effort and intensity) differed between groups and appeared to change in line with duration of abstinence from cannabis use. Differences between groups may reflect longer term changes to the underlying neural control of speech. Our digital analysis of speech shows there may be a signal differentiating individuals with a history of recreational cannabis use from healthy controls, in line with similar findings from gait and hand function studies.
Collapse
Affiliation(s)
- Adam P Vogel
- Centre for Neuroscience of Speech, The University of Melbourne, Parkville, VIC, 3010, Australia; Department of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, 72076, Germany; Redenlab, Melbourne, Australia.
| | - Verity Pearson-Dennett
- UniSA Clinical & Health Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia
| | - Michelle Magee
- Centre for Neuroscience of Speech, The University of Melbourne, Parkville, VIC, 3010, Australia; Redenlab, Melbourne, Australia
| | - Robert A Wilcox
- UniSA Clinical & Health Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia; Department of Neurology, Flinders Medical Centre, Bedford Park, SA, 5042, Australia; Human Physiology, Medical School, Flinders University, Bedford Park, SA, 5042, Australia
| | - Adrian Esterman
- UniSA Clinical & Health Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia; Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia
| | - Dominic Thewlis
- Centre for Orthopaedic & Trauma Research, The University of Adelaide, Adelaide, SA, 5000, Australia
| | - Jason M White
- UniSA Clinical & Health Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia
| | - Gabrielle Todd
- UniSA Clinical & Health Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia; Alliance for Research in Exercise, Nutrition and Activity (ARENA), UniSA Allied Health & Human Performance, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia.
| |
Collapse
|
14
|
Bade R, Tscharke BJ, O'Brien JW, Magsarjav S, Humphries M, Ghetia M, Thomas KV, Mueller JF, White JM, Gerber C. Impact of COVID-19 Controls on the Use of Illicit Drugs and Alcohol in Australia. Environ Sci Technol Lett 2021; 8:799-804. [PMID: 37566342 PMCID: PMC8370123 DOI: 10.1021/acs.estlett.1c00532] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/02/2021] [Accepted: 08/05/2021] [Indexed: 05/08/2023]
Abstract
Methamphetamine, MDMA, cocaine, cannabis, and alcohol in samples from 20 wastewater treatment plants servicing the eight state or territory capitals of Australia were analyzed, with equivalent coverage of >45% of the national population. Trends in drug consumption were calculated and assessed from samples collected from 2016 to 2020, with a focus on pre-COVID-19 (August 2016 to December 2019), versus February to June 2020, when Australia observed a nationwide lockdown. Results showed delayed but significant decreases in methamphetamine, >50% in Western Australia. In contrast, significant increases in cannabis in most jurisdictions were observed. This suggests changes in consumption may be somewhat linked to reduced supply of imported substances, with increased use of locally produced drugs. Initial decreases in cocaine and MDMA consumption were evident in many parts of the country, but pre-COVID trends were re-established after April 2020. Interestingly, weekend-weekday differences were narrowed for cocaine, MDMA, and alcohol during lockdown, which might be expected due to bars being closed and social gathering not allowed. With this study providing insight into the first four months of COVID-19 restrictions in Australia, it remains to be seen what the longer-term effect of the pandemic will be.
Collapse
Affiliation(s)
- Richard Bade
- University of South Australia (UniSA), Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide, South Australia 5000, Australia
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba 4102, Queensland, Australia
| | - Benjamin J Tscharke
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba 4102, Queensland, Australia
| | - Jake W O'Brien
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba 4102, Queensland, Australia
| | - Saranzaya Magsarjav
- Faculty of Engineering, Computer and Mathematical Sciences, University of Adelaide, Adelaide, South Australia 5006, Australia
| | - Melissa Humphries
- Faculty of Engineering, Computer and Mathematical Sciences, University of Adelaide, Adelaide, South Australia 5006, Australia
| | - Maulik Ghetia
- University of South Australia (UniSA), Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide, South Australia 5000, Australia
| | - Kevin V Thomas
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba 4102, Queensland, Australia
| | - Jochen F Mueller
- Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall Street, Woolloongabba 4102, Queensland, Australia
| | - Jason M White
- University of South Australia (UniSA), Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide, South Australia 5000, Australia
| | - Cobus Gerber
- University of South Australia (UniSA), Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide, South Australia 5000, Australia
| |
Collapse
|
15
|
Bade R, Ghetia M, Chappell A, White JM, Gerber C. Pholedrine is a marker of direct disposal of methamphetamine. Sci Total Environ 2021; 782:146839. [PMID: 33836378 DOI: 10.1016/j.scitotenv.2021.146839] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/22/2021] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
Consumption of methamphetamine has primarily been estimated in wastewater-based epidemiology by measuring the parent compound. However, this could lead to overestimation when methamphetamine is directly disposed into the sewer system. In this respect, it would be advantageous to measure a specific metabolite of methamphetamine instead. We identified 4-hydroxymethamphetamine (pholedrine) as a potential marker. Stability experiments were performed in both filtered and unfiltered wastewater. Correlations with relative loads in wastewater were used to establish its potential as a marker of direct disposal of methamphetamine, or even as a wastewater-based epidemiology biomarker of methamphetamine consumption. This study then investigated the use of pholedrine in combination with methamphetamine to better detect direct disposal events and its potential as a marker of methamphetamine consumption. Examples from both South Australia and New Zealand exemplify the use of pholedrine to identify potential instances of direct disposal of methamphetamine.
Collapse
Affiliation(s)
- Richard Bade
- Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | - Maulik Ghetia
- Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | - Andrew Chappell
- Institute of Environmental Science and Research Limited (ESR), Christchurch Science Centre, 27 Creyke Road, Ilam, Christchurch 8041, New Zealand
| | - Jason M White
- Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | - Cobus Gerber
- Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia.
| |
Collapse
|
16
|
Bade R, Simpson BS, Ghetia M, Nguyen L, White JM, Gerber C. Changes in alcohol consumption associated with social distancing and self-isolation policies triggered by COVID-19 in South Australia: a wastewater analysis study. Addiction 2021; 116:1600-1605. [PMID: 32945597 PMCID: PMC7537161 DOI: 10.1111/add.15256] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 08/09/2020] [Accepted: 09/06/2020] [Indexed: 12/02/2022]
Abstract
AIM To assess the effects of social distancing and social isolation policies triggered by COVID-19 on alcohol consumption using wastewater analysis in Adelaide, South Australia. DESIGN Longitudinal quantitative analysis of influent wastewater data for alcohol concentration. SETTING Adelaide, South Australia. PARTICIPANTS Wastewater catchment area representative of 1.1 million inhabitants. MEASUREMENTS Twenty-four hour composite influent wastewater samples were collected from four wastewater treatment plants in Adelaide, South Australia for 7 consecutive days (Wednesday-Tuesday) every 2 months from April 2016-April 2020. The alcohol metabolite ethyl sulfate was measured in samples using chromatography-tandem mass spectrometry. Data were population-weighted adjusted with consumption expressed as standard drinks/day/1000 people. Weekly consumption and weekend to mid-week consumption ratios were analysed to identify changes in weekday alcohol use pattern. FINDINGS Estimated weekend alcohol consumption was significantly lower (698 standard drinks/day/1000 people) after self-isolation measures were enforced in April 2020 compared with the preceding sampling period in February 2020 (1047 standard drinks/day/1000 people), P < 0.05. Weekend to midweek consumption ratio was 12% lower than the average ratio compared with all previous sampling periods. April 2020 recorded the lowest alcohol consumption relative to April in previous years, dating back to 2016. CONCLUSIONS Wastewater analysis suggests that introduction of social distancing and isolation policies triggered by COVID-19 in Adelaide, South Australia, was associated with a decrease in population-level weekend alcohol consumption.
Collapse
Affiliation(s)
- Richard Bade
- Clinical and Health Sciences, Health and Biomedical InnovationUniversity of South AustraliaAdelaideAustralia
| | - Bradley S. Simpson
- Clinical and Health Sciences, Health and Biomedical InnovationUniversity of South AustraliaAdelaideAustralia
| | - Maulik Ghetia
- Clinical and Health Sciences, Health and Biomedical InnovationUniversity of South AustraliaAdelaideAustralia
| | - Lynn Nguyen
- Clinical and Health Sciences, Health and Biomedical InnovationUniversity of South AustraliaAdelaideAustralia
| | - Jason M. White
- Clinical and Health Sciences, Health and Biomedical InnovationUniversity of South AustraliaAdelaideAustralia
| | - Cobus Gerber
- Clinical and Health Sciences, Health and Biomedical InnovationUniversity of South AustraliaAdelaideAustralia
| |
Collapse
|
17
|
Pandopulos AJ, Bade R, Tscharke BJ, O'Brien JW, Simpson BS, White JM, Gerber C. Application of catecholamine metabolites as endogenous population biomarkers for wastewater-based epidemiology. Sci Total Environ 2021; 763:142992. [PMID: 33498117 DOI: 10.1016/j.scitotenv.2020.142992] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/06/2020] [Accepted: 10/06/2020] [Indexed: 05/24/2023]
Abstract
Wastewater-based epidemiology studies use catchment populations to normalise chemical marker mass loads in 24-h composite wastewater samples. However, one of the biggest uncertainties within the field is the accuracy of the population used. A population marker in wastewater may significantly reduce the uncertainty. This study evaluated the catecholamine metabolites - homovanillic acid (HVA) and vanillylmandelic acid (VMA) - as potential population biomarkers. Influent wastewater 24-h composite samples were collected from 38 wastewater catchments from around Australia (representing ~33% of Australia's population), extracted and analysed by liquid chromatography tandem mass spectrometry. Measured mass loads were compared to population sizes determined by mapping catchment maps against high-resolution census data. Both biomarkers correlated with coefficient of determinations (r2) of 0.908 and 0.922 for HVA and VMA, respectively. From the regression analysis, a slope (i.e. the daily per-capita excretion) of 1.241 and 1.067 mg.day-1.person-1 was obtained for HVA and VMA, respectively. The mass load ratio between VMA:HVA were very similar to that reported in literature for urinary analysis among all catchments. Overall, this study provided further evidence that catecholamine metabolites are suitable candidates as population biomarkers for future studies.
Collapse
Affiliation(s)
- Aaron J Pandopulos
- University of South Australia, Clinical and Health Sciences (CHS), Health and Biomedical Innovation, South Australia 5000, Australia
| | - Richard Bade
- University of South Australia, Clinical and Health Sciences (CHS), Health and Biomedical Innovation, South Australia 5000, Australia
| | - Benjamin J Tscharke
- Queensland Alliance for Environmental Health Science (QAEHS), The University of Queensland, 20 Cornwall Street Woolloongabba, Queensland 4102, Australia
| | - Jake W O'Brien
- Queensland Alliance for Environmental Health Science (QAEHS), The University of Queensland, 20 Cornwall Street Woolloongabba, Queensland 4102, Australia
| | - Bradley S Simpson
- University of South Australia, Clinical and Health Sciences (CHS), Health and Biomedical Innovation, South Australia 5000, Australia
| | - Jason M White
- University of South Australia, Clinical and Health Sciences (CHS), Health and Biomedical Innovation, South Australia 5000, Australia
| | - Cobus Gerber
- University of South Australia, Clinical and Health Sciences (CHS), Health and Biomedical Innovation, South Australia 5000, Australia.
| |
Collapse
|
18
|
Bade R, White JM, Chen J, Baz-Lomba JA, Been F, Bijlsma L, Burgard DA, Castiglioni S, Salgueiro-Gonzalez N, Celma A, Chappell A, Emke E, Steenbeek R, Wang D, Zuccato E, Gerber C. International snapshot of new psychoactive substance use: Case study of eight countries over the 2019/2020 new year period. Water Res 2021; 193:116891. [PMID: 33582495 DOI: 10.1016/j.watres.2021.116891] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/28/2021] [Accepted: 02/01/2021] [Indexed: 06/12/2023]
Abstract
There is considerable concern around the use of new psychoactive substances (NPS), but still little is known about how much they are really consumed. Analysis by forensics laboratories of seized drugs and post-mortem samples as well as hospital emergency rooms are the first line of identifying both 'new' NPS and those that are most dangerous to the community. However, NPS are not necessarily all seized by law enforcement agencies and only substances that contribute to fatalities or serious afflictions are recorded in post-mortem and emergency room samples. To gain a better insight into which NPS are most prevalent within a community, complementary data sources are required. In this work, influent wastewater was analysed from 14 sites in eight countries for a variety of NPS. All samples were collected over the 2019/2020 New Year period, a time which is characterized by celebrations and parties and therefore a time when more NPS may be consumed. Samples were extracted in the country of origin following a validated protocol and shipped to Australia for final analysis using two different mass spectrometric strategies. In total, more than 200 were monitored of which 16 substances were found, with geographical differences seen. This case study is the most comprehensive wastewater analysis study ever carried out for the identification of NPS and provides a starting point for future, ongoing monitoring of these substances.
Collapse
Affiliation(s)
- Richard Bade
- Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | - Jason M White
- Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | - Jingjing Chen
- Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia
| | | | - Frederic Been
- KWR Water Research Institute, 3433 PE Nieuwegein, the Netherlands
| | - Lubertus Bijlsma
- Environmental and Public Health Analytical Chemistry, Research Institute for Pesticides and Water, University Jaume I, Avda, Sos Baynat s/n, E-12071 Castellón, Spain
| | - Daniel A Burgard
- Department of Chemistry, University of Puget Sound, Tacoma, WA 98416, United States
| | - Sara Castiglioni
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Department of Environmental Sciences, Via Mario Negri 2, 20156, Milan Italy
| | - Noelia Salgueiro-Gonzalez
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Department of Environmental Sciences, Via Mario Negri 2, 20156, Milan Italy
| | - Alberto Celma
- Environmental and Public Health Analytical Chemistry, Research Institute for Pesticides and Water, University Jaume I, Avda, Sos Baynat s/n, E-12071 Castellón, Spain
| | - Andrew Chappell
- Institute of Environmental Science and Research Limited (ESR), Christchurch Science Centre: 27 Creyke Road, Ilam, Christchurch 8041, New Zealand
| | - Erik Emke
- KWR Water Research Institute, 3433 PE Nieuwegein, the Netherlands
| | - Ruud Steenbeek
- KWR Water Research Institute, 3433 PE Nieuwegein, the Netherlands
| | - Degao Wang
- College of Environmental Science and Engineering, Dalian Maritime University, No. 1 Linghai Road, Dalian, P. R. China, 116026
| | - Ettore Zuccato
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Department of Environmental Sciences, Via Mario Negri 2, 20156, Milan Italy
| | - Cobus Gerber
- Health and Biomedical Innovation, UniSA: Clinical and Health Sciences, University of South Australia, Adelaide 5001, South Australia, Australia.
| |
Collapse
|
19
|
Bade R, White JM, Gerber C. How the recreational stimulant market has changed: Case study in Adelaide, Australia 2016-2019. Sci Total Environ 2021; 757:143728. [PMID: 33277018 DOI: 10.1016/j.scitotenv.2020.143728] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 11/04/2020] [Accepted: 11/06/2020] [Indexed: 06/12/2023]
Abstract
The human consumption of stimulant drugs is known to increase over festive periods. In this work, four illicit stimulants: 3,4-methylenedioxymethamphetamine (MDMA), 3,4-methylenedioxyamphetamine (MDA), cocaine and methamphetamine and three new psychoactive substances (NPS): ethylone, mephedrone and N-ethylpentylone were monitored in influent wastewater over the Christmas-New Year period in South Australia from 2016 to 2019 using liquid chromatography-mass spectrometry. The differences in Christmas - New Year consumption between years were evaluated and daily mass loads were compared to the average for that year to determine drug levels over the festive period. Although MDMA, MDA and cocaine showed year-on-year increases, the use over the New Year period was far higher than over the rest of the year, consistent with recreational drug use. These were also the drugs that were used predominantly on weekends during the year. Methamphetamine, which does not have a pattern of predominant weekend use, and the NPS showed variable trends. These results suggest that during holiday periods there are increases in the use of a limited set of drugs only and these can be predicted from patterns of use during the non-holiday periods.
Collapse
Affiliation(s)
- Richard Bade
- University of South Australia, UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide 5000, South Australia, Australia
| | - Jason M White
- University of South Australia, UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide 5000, South Australia, Australia
| | - Cobus Gerber
- University of South Australia, UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide 5000, South Australia, Australia.
| |
Collapse
|
20
|
Bade R, White JM, Nguyen L, Pandopulos AJ, Gerber C. What is the drug of choice of young festivalgoers? Drug Alcohol Depend 2020; 216:108315. [PMID: 33045619 DOI: 10.1016/j.drugalcdep.2020.108315] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/19/2020] [Accepted: 09/17/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Drug and alcohol consumption are commonplace at festivals including those aimed at younger attendees. However, there is little quantitative information about the extent of this consumption. This work investigates drug use at a school-leaver festival and how it compares to non-festival weeks. METHODS Influent wastewater was collected over three consecutive weeks from a location where a school-leaver festival occurs. Multiple liquid chromatography-mass spectrometry methods were used to analyse the use of illicit drugs, pharmaceuticals with abuse potential, new psychoactive substances (NPS), alcohol and cannabis. A method for human neurotransmitter metabolites was also utilised to show the population change and allow the drugs found to be normalised to a population. RESULTS A total of 12 compounds were quantifiable: methamphetamine, 3,4-methylenedioxyamphetamine (MDA), 3,4-methylenedioxymethamphetamine (MDMA), alcohol, cannabis, cocaine, morphine, codeine, fentanyl, buprenorphine, oxycodone and nicotine. The NPS methylone was found solely over the festival weekend but at levels below the limit of quantification of the analytical method. The catecholamine metabolites vanillylmandelic acid (VMA) and homovanillic acid (HVA) were found over the entire three weeks, with identical trends - an increase over the festival weekend - indicating a population increase. HVA was used to normalise the drug mass loads to derive a population normalised mass load. Statistical differences using Hedges' g showed large changes in the use of MDMA and MDA over the festival week. Smaller increases were also seen for alcohol and cocaine. CONCLUSIONS The drugs of choice for the attendees of this school-leaver festival were MDMA and MDA.
Collapse
Affiliation(s)
- Richard Bade
- University of South Australia, UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide, SA 5000, Australia
| | - Jason M White
- University of South Australia, UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide, SA 5000, Australia
| | - Lynn Nguyen
- University of South Australia, UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide, SA 5000, Australia
| | - Aaron J Pandopulos
- University of South Australia, UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide, SA 5000, Australia
| | - Cobus Gerber
- University of South Australia, UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide, SA 5000, Australia.
| |
Collapse
|
21
|
Pandopulos AJ, Bade R, O'Brien JW, Tscharke BJ, Mueller JF, Thomas K, White JM, Gerber C. Towards an efficient method for the extraction and analysis of cannabinoids in wastewater. Talanta 2020; 217:121034. [DOI: 10.1016/j.talanta.2020.121034] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 12/18/2022]
|
22
|
Bade R, White JM, Nguyen L, Tscharke BJ, Mueller JF, O'Brien JW, Thomas KV, Gerber C. Determining changes in new psychoactive substance use in Australia by wastewater analysis. Sci Total Environ 2020; 731:139209. [PMID: 32417485 DOI: 10.1016/j.scitotenv.2020.139209] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/02/2020] [Accepted: 05/02/2020] [Indexed: 06/11/2023]
Abstract
Measuring community consumption of new psychoactive substances (NPS) is notoriously difficult to assess by traditional means such as surveys and seizure data. Previously, we used the approach to demonstrate the prevalence of NPS on a national scale. In the current study we explored the temporal resolution for the analysis of NPS in wastewater from Australia. Samples covering all States and Territories in Australia and both metropolitan and regional areas and were collected bimonthly from October 2017-June 2018 and October 2019-February 2020. A qualitative screening method was applied, screening for 201 NPS. In total, 15 substances were found from a variety of classes of NPS. The most prevalent class was synthetic cathinones, with pentylone, N-ethylpentylone and ethylone found in all periods in at least one site in the earlier sampling period, as well as the amphetamine-like paramethoxyamphetamine (PMA). In the latter period, synthetic cathinones were also the most prevalent, including eutylone, marking the first time that this compound has been detected in wastewater. This study shows the application of wastewater analysis to detect outbreaks of NPS use and temporal differences among sites.
Collapse
Affiliation(s)
- Richard Bade
- University of South Australia, UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide 5000, South Australia, Australia
| | - Jason M White
- University of South Australia, UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide 5000, South Australia, Australia
| | - Lynn Nguyen
- University of South Australia, UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide 5000, South Australia, Australia
| | - Benjamin J Tscharke
- Queensland Alliance for Environmental Health Science (QAEHS), The University of Queensland, 20 Cornwall Street Woolloongabba, 4102, Queensland, Australia
| | - Jochen F Mueller
- Queensland Alliance for Environmental Health Science (QAEHS), The University of Queensland, 20 Cornwall Street Woolloongabba, 4102, Queensland, Australia
| | - Jake W O'Brien
- Queensland Alliance for Environmental Health Science (QAEHS), The University of Queensland, 20 Cornwall Street Woolloongabba, 4102, Queensland, Australia
| | - Kevin V Thomas
- Queensland Alliance for Environmental Health Science (QAEHS), The University of Queensland, 20 Cornwall Street Woolloongabba, 4102, Queensland, Australia
| | - Cobus Gerber
- University of South Australia, UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide 5000, South Australia, Australia.
| |
Collapse
|
23
|
Bade R, Ghetia M, White JM, Gerber C. Determination of prescribed and designer benzodiazepines and metabolites in influent wastewater. Anal Methods 2020; 12:3637-3644. [PMID: 32701083 DOI: 10.1039/d0ay00560f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Benzodiazepines are important prescription pharmaceuticals used to help in the treatment of anxiety and sleep disorders. However, they also have a strong potential for abuse. In this respect, illicit benzodiazepines, i.e. not prescribed in Australia and designer benzodiazepines, which are new compounds that are not legally prescribed in any jurisdiction, have emerged in the illicit Australian market in recent years. Designer benzodiazepines are a new class of new psychoactive substances (NPS) and are particularly dangerous due to limited toxicity information and propensity to be mistaken for conventional benzodiazepines, leading to severe side effects and potentially death. It is therefore important to assess the prevalence of the use of these compounds in the community. The current work presents a validated liquid chromatography-mass spectrometry method for 20 prescribed and designer benzodiazepines and metabolites: 7-amino nimetazepam, alpha-hydroxy alprazolam, alprazolam, clonazepam, delorazepam, deschloroetizolam, diazepam, diclazepam, etizolam, flubromazepam, flunitrazepam, lorazepam, lormetazepam, meclonazepam, midazolam, nimetazepam, nitrazepam, oxazepam, pyrazolam and temazepam. Quetiapine, a prescription sedative drug that has been diverted for non-medical use, was also validated. Limits of quantification were predominantly below 10 ng L-1, except for the ubiquitous oxazepam, quetiapine and temazepam, which were between 75-300 ng L-1. Stability, recovery and matrix effects were also examined. Finally, this method was applied to influent wastewater from South Australia, which showed the presence of many benzodiazepines including the NPS etizolam.
Collapse
Affiliation(s)
- Richard Bade
- University of South Australia, UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, Adelaide 5000, South Australia, Australia.
| | | | | | | |
Collapse
|
24
|
Bade R, Abbate V, Abdelaziz A, Nguyen L, Trobbiani S, Stockham P, Elliott S, White JM, Gerber C. The complexities associated with new psychoactive substances in influent wastewater: The case of 4-ethylmethcathinone. Drug Test Anal 2020; 12:1494-1500. [PMID: 32621345 DOI: 10.1002/dta.2890] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 06/30/2020] [Accepted: 06/30/2020] [Indexed: 11/07/2022]
Abstract
Consumption of new psychoactive substances (NPS) is an international problem for health, policing, forensic, and analytical laboratories. The transience of these substances in the community, combined with continual slight structural changes to evade legislation makes the elucidation of NPS an analytical challenge. This is amplified in a matrix as complex as wastewater. For that reason, suspect and non-target methodologies, employing high resolution mass spectrometry are the most appropriate current tool to facilitate the identification of new and existing compounds. In the current work, a qualitative screening method of influent wastewater using liquid chromatography-high resolution mass spectrometry showed a strong signal at m/z 192.1382 - identical to that of two NPS standards that were in our method (pentedrone and 4-methylethcathinone), and with identical fragment ions, but the retention times did not match. This work shows the methodology followed to identify this compound, highlighting the challenges of the identifying "new" compounds in influent wastewater.
Collapse
Affiliation(s)
- Richard Bade
- UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, University of South Australia, Adelaide, South Australia, Australia
| | - Vincenzo Abbate
- King's Forensics, Department of Analytical, Environmental and Forensic Sciences, King's College London, London, UK
| | - Ahmed Abdelaziz
- UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, University of South Australia, Adelaide, South Australia, Australia
| | - Lynn Nguyen
- UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, University of South Australia, Adelaide, South Australia, Australia
| | | | - Peter Stockham
- Forensic Science SA, GPO Box 2790, Adelaide, Australia.,College of Science and Engineering, Flinders University, Bedford Park, South Australia
| | - Simon Elliott
- King's Forensics, Department of Analytical, Environmental and Forensic Sciences, King's College London, London, UK.,Elliott Forensic Consulting, Birmingham, UK
| | - Jason M White
- UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, University of South Australia, Adelaide, South Australia, Australia
| | - Cobus Gerber
- UniSA: Clinical and Health Sciences, Health and Biomedical Innovation, University of South Australia, Adelaide, South Australia, Australia
| |
Collapse
|
25
|
Bade R, White JM, Tscharke BJ, Ghetia M, Abdelaziz A, Gerber C. Anabasine‐based measurement of cigarette consumption using wastewater analysis. Drug Test Anal 2020; 12:1393-1398. [DOI: 10.1002/dta.2874] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 05/01/2020] [Accepted: 06/02/2020] [Indexed: 11/05/2022]
Affiliation(s)
- Richard Bade
- UniSA: Clinical and Health Sciences, Health and Biomedical Innovation University of South Australia South Australia Australia
| | - Jason M. White
- UniSA: Clinical and Health Sciences, Health and Biomedical Innovation University of South Australia South Australia Australia
| | - Benjamin J. Tscharke
- Queensland Alliance for Environmental Health Science (QAEHS) The University of Queensland Woolloongabba Queensland Australia
| | - Maulik Ghetia
- UniSA: Clinical and Health Sciences, Health and Biomedical Innovation University of South Australia South Australia Australia
| | - Ahmed Abdelaziz
- UniSA: Clinical and Health Sciences, Health and Biomedical Innovation University of South Australia South Australia Australia
| | - Cobus Gerber
- UniSA: Clinical and Health Sciences, Health and Biomedical Innovation University of South Australia South Australia Australia
| |
Collapse
|
26
|
Tiley K, Tessier E, White JM, Andrews N, Saliba V, Ramsay M, Edelstein M. School-based vaccination programmes: An evaluation of school immunisation delivery models in England in 2015/16. Vaccine 2020; 38:3149-3156. [PMID: 31980192 DOI: 10.1016/j.vaccine.2020.01.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 01/08/2020] [Accepted: 01/09/2020] [Indexed: 11/28/2022]
Abstract
Schools are increasingly being used to deliver vaccines. In 2015/16 three school-based vaccination programmes were delivered to adolescents in England: human papillomavirus (HPV), meningococcal groups A, C, W and Y disease (MenACWY) and tetanus, diphtheria and polio (Td/IPV). We assessed how school delivery models impact vaccine coverage and how a delivery model for one programme may impact another. Routinely collected national data were analysed to ascertain the school grade achieving highest coverage within each one-dose programme and to compare two-dose delivery models (within year vs across years) for the HPV vaccine. We also assessed whether the HPV delivery model was associated with coverage in other programmes. MenACWY and Td/IPV coverage was highest in younger school grades. Overall similar HPV coverage was achieved with both models (86.7% two doses within one year, 85.8% two doses across two years, p = 0.20). High two-dose HPV coverage in 2015/16 was reported in areas that achieved high HPV coverage in 2013/14 when three doses were required. Areas with high three-dose coverage in 2013/14 achieved higher coverage with a within-one-year approach (92.0% vs 85.2%, p < 0.001), whilst areas reporting low coverage in 2013/14 achieved lower but similar coverage in 2015/16 with both models (79.2% vs 80.9% p = 0.29). MenACWY and Td/IPV coverage were higher in areas with high HPV coverage in 2013/14. Among high HPV coverage areas, MenACWY coverage was higher when HPV doses were delivered within year. School-based programmes should be offered as early as feasible and acceptable to optimise coverage. The choice of delivery model for HPV should take into account local performance and provider experience. Single providers may delivery multiple vaccines and the delivery for one programme may affect the performance of other programmes. Providers should consider local circumstances including past and current vaccine coverage and factors influencing coverage when deciding what delivery model to adopt.
Collapse
Affiliation(s)
- K Tiley
- Immunisation and Countermeasures Division, National Infection Service, Public Health England, London, UK
| | - E Tessier
- Immunisation and Countermeasures Division, National Infection Service, Public Health England, London, UK.
| | - J M White
- Immunisation and Countermeasures Division, National Infection Service, Public Health England, London, UK
| | - N Andrews
- Statistics, Modelling and Economics Department, National Infection Service, Public Health England, UK
| | - V Saliba
- Immunisation and Countermeasures Division, National Infection Service, Public Health England, London, UK
| | - M Ramsay
- Immunisation and Countermeasures Division, National Infection Service, Public Health England, London, UK
| | - M Edelstein
- Immunisation and Countermeasures Division, National Infection Service, Public Health England, London, UK
| |
Collapse
|
27
|
Pandopulos AJ, Gerber C, Tscharke BJ, O'Brien J, White JM, Bade R. A sensitive analytical method for the measurement of neurotransmitter metabolites as potential population biomarkers in wastewater. J Chromatogr A 2020; 1612:460623. [DOI: 10.1016/j.chroma.2019.460623] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 10/09/2019] [Accepted: 10/13/2019] [Indexed: 12/17/2022]
|
28
|
Lee HJ, White JM, Chung J, Malone P, DeWeerth SP, Tansey KE. Differential cardiovascular responses to cutaneous afferent subtypes in a nociceptive intersegmental spinal reflex. Sci Rep 2019; 9:19049. [PMID: 31836817 PMCID: PMC6911054 DOI: 10.1038/s41598-019-54072-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 11/08/2019] [Indexed: 11/24/2022] Open
Abstract
Electrical stimulation to segmental dorsal cutaneous nerves (DCNs) activates a nociceptive sensorimotor reflex and the same afferent stimulation also evokes blood pressure (BP) and heart rate (HR) responses in rats. To investigate the relationship between those cardiovascular responses and the activation of nociceptive afferents, we analyzed BP and HR responses to electrical stimulations at each DCN from T6 to L1 at 0.5 mA to activate A-fiber alone or 5 mA to activate both A- and C-fibers at different frequencies. Evoked cardiovascular responses showed a decrease and then an increase in BP and an increase and then a plateau in HR. Segmentally, both cardiovascular responses tended to be larger when evoked from the more rostral DCNs. Stimulation frequency had a larger effect on cardiovascular responses than the rostrocaudal level of the DCN input. Stimulation strength showed a large effect on BP changes dependent on C-fibers whereas HR changes were dependent on A-fibers. Additional A-fiber activation by stimulating up to 4 adjacent DCNs concurrently, but only at 0.5 mA, affected HR but not BP. These data support that cutaneous nociceptive afferent subtypes preferentially contribute to different cardiovascular responses, A-fibers to HR and C-fibers to BP, with temporal (stimulation frequency) and spatial (rostrocaudal level) dynamics.
Collapse
Affiliation(s)
- Hyun Joon Lee
- Departments of Neurology and Physiology, Emory University, Atlanta, GA, USA.,Departments of Neurology, University of Mississippi Medical Center, Jackson, MS, USA.,Departments of Neurobiology and Anatomical Sciences, University of Mississippi Medical Center, Jackson, MS, USA.,G.V. (Sonny) Montgomery VA Medical Center, Jackson, MS, USA
| | - Jason M White
- Department of Biomedical Engineering, Georgia Institute of Technology/Emory University, Atlanta, GA, USA
| | - Jumi Chung
- Departments of Neurology and Physiology, Emory University, Atlanta, GA, USA.,Departments of Neurology, University of Mississippi Medical Center, Jackson, MS, USA.,G.V. (Sonny) Montgomery VA Medical Center, Jackson, MS, USA
| | - Patrick Malone
- Departments of Neurology and Physiology, Emory University, Atlanta, GA, USA
| | - Stephen P DeWeerth
- Department of Biomedical Engineering, Georgia Institute of Technology/Emory University, Atlanta, GA, USA.,School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Keith E Tansey
- Departments of Neurology and Physiology, Emory University, Atlanta, GA, USA. .,Spinal Cord Injury Clinic, Atlanta VA Medical Center, Atlanta, GA, USA. .,Departments of Neurobiology and Anatomical Sciences, University of Mississippi Medical Center, Jackson, MS, USA. .,Departments of Neurosurgery, University of Mississippi Medical Center, Jackson, MS, USA. .,G.V. (Sonny) Montgomery VA Medical Center, Jackson, MS, USA. .,NeuroRobotics Lab, Methodist Rehabilitation Center, Jackson, MS, USA.
| |
Collapse
|
29
|
Todd G, Burns L, Pearson-Dennett V, Esterman A, Faulkner PL, Wilcox RA, Thewlis D, Vogel AP, White JM. Prevalence of self-reported movement dysfunction among young adults with a history of ecstasy and methamphetamine use. Drug Alcohol Depend 2019; 205:107595. [PMID: 31600615 DOI: 10.1016/j.drugalcdep.2019.107595] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 07/25/2019] [Accepted: 07/26/2019] [Indexed: 11/26/2022]
Abstract
BACKGROUND Illicit stimulant use is associated with long-lasting changes in movement and movement-related brain regions. The aim of our study was to investigate the prevalence of movement dysfunction in this population. We hypothesized that prevalence of self-reported movement dysfunction is higher among stimulant users than non-stimulant users. METHODS Three groups of adults completed a survey containing questions about demographics, health, drug use, and movement. The groups consisted of ecstasy users with no history of methamphetamine use (ecstasy group, n = 190, 20 ± 3 yrs.), methamphetamine users (methamphetamine group, n = 331, 23 ± 5 yrs.), and non-stimulant users (control group, n = 228, 25 ± 8 yrs.). Movement data was analyzed with logistic regression. RESULTS In the unadjusted logistic regression model, group had a significant effect on fine hand control, tremor, and voice/speech questions, but not on other movement domain questions. The prevalence of tremor and abnormal fine hand control was significantly higher in the ecstasy and methamphetamine groups than in the control group (p < 0.018), and changes in voice/speech was more prevalent in the ecstasy group than in the control group (p = 0.015). Age and use of cannabis and hallucinogens were confounding variables. However, inspection of chi-square tables suggests that the effect of these parameters on the movement data is likely to be minor. CONCLUSIONS The prevalence of self-reported tremor and changes in fine hand control and voice/speech is significantly higher in stimulant users than in non-stimulant users. Inclusion of these common and noticeable changes in body function may aid public health campaigns that target prevention or harm minimization.
Collapse
Affiliation(s)
- Gabrielle Todd
- School of Pharmacy and Medical Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia.
| | - Lucinda Burns
- National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW, 2052, Australia.
| | - Verity Pearson-Dennett
- School of Pharmacy and Medical Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia.
| | - Adrian Esterman
- School of Nursing and Midwifery, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia; Australian Institute of Health and Tropical Medicine, James Cook University, Smithfield, QLD, 4870, Australia.
| | - Patrick L Faulkner
- School of Pharmacy and Medical Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia; School of Health Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia.
| | - Robert A Wilcox
- School of Pharmacy and Medical Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia; Department of Neurology, Flinders Medical Centre, Bedford Park, SA, 5042, Australia; Human Physiology, Medical School, Flinders University, Bedford Park, SA, 5042, Australia.
| | - Dominic Thewlis
- Centre for Orthopaedic and Trauma Research, The University of Adelaide, Adelaide, SA, 5000, Australia.
| | - Adam P Vogel
- Centre for Neuroscience of Speech, The University of Melbourne, Carlton, VIC, 3010, Australia; Department of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, 72076, Germany; Redenlab, Suite 669, 585 Little Collins Street, Melbourne, VIC, 3000, Australia.
| | - Jason M White
- School of Pharmacy and Medical Sciences, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia.
| |
Collapse
|
30
|
McDonough M, Johnson JL, White JM, Buisman-Pijlman FTA. Measuring opioid dependence in chronic pain patients: A comparison between addiction clinic and pain clinic patient populations. J Opioid Manag 2019; 15:285-293. [PMID: 31637681 DOI: 10.5055/jom.2019.0514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To compare dependence characteristics between patients with chronic pain treated within an addiction medicine setting with those attending specialist pain clinics. SETTING AND PATIENTS Forty patients with chronic non-cancer pain taking opioid analgesics for >1 year were recruited from university-affiliated, tertiary teaching hospital clinics; 20 from an addiction medicine clinic (addiction clinic group) and 20 from specialist pain clinics (pain clinic group). DESIGN AND MAIN OUTCOME MEASURES Data regarding demographics, past and current substance use, pain history and current daily opioid intake were collected. Patients completed three questionnaires: the Severity of Opioid Dependence Questionnaire, Leeds Dependence Questionnaire, and Pain Disability Index. A novel "Opioid Problem Checklist score" assessing drug-related problems was also determined for each patient. RESULTS The addiction clinic group were younger, more likely to have experienced drug overdose and had a shorter duration of chronic pain. No significant differences in dependence questionnaire scores were found between groups. However, higher Pain Disability Index scores and higher Opioid Problem Checklist scores (indicating more drug-related problems) were found for the addiction clinic group. CONCLUSIONS Some degree of dependence was present across both addiction and pain clinic groups, supporting the notion a state of dependence can be identified among chronic pain patients taking opioids long term. Aberrant behaviors were not common in the pain clinic sample, suggesting these patients are unlikely to meet Diagnostic and Statistical Manual of Mental Disorders-V criteria for Substance Use Disorder. However, opioid dependence carries significant risks for relapse, chronicity, morbidity and mortality, warranting specific medical management. Management of such risks should be considered routine care in chronic pain patients taking opioids long term.
Collapse
Affiliation(s)
- Mike McDonough
- Clinical Director, Drug and Alcohol Services South Australia, SA Health, South Australia, Australia
| | - Jacinta L Johnson
- Lecturer in Pharmacy, School of Pharmacy and Medical Sciences, University of South Australia, South Australia, Australia; Senior Pharmacist, Medication Safety, Flinders Medical Centre, SA Pharmacy, SA Health, South Australia, Australia
| | - Jason M White
- Adjunct Professor, School of Pharmacy and Medical Sciences, University of South Australia, South Australia, Australia
| | - Femke T A Buisman-Pijlman
- Senior Lecturer in Addiction Studies, Adelaide Medical School, University of Adelaide, South Australia, Australia
| |
Collapse
|
31
|
Athanasos P, Ling W, Bochner F, White JM, Somogyi AA. Buprenorphine Maintenance Subjects Are Hyperalgesic and Have No Antinociceptive Response to a Very High Morphine Dose. Pain Med 2019. [PMID: 29514333 DOI: 10.1093/pm/pny025] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Objective Acute pain management in opioid-dependent persons is complicated because of tolerance and opioid-induced hyperalgesia. Very high doses of morphine are ineffective in overcoming opioid-induced hyperalgesia and providing antinociception to methadone-maintained patients in an experimental setting. Whether the same occurs in buprenorphine-maintained subjects is unknown. Design Randomized double-blind placebo-controlled. Subjects were tested on two occasions, at least five days apart, once with intravenous morphine and once with intravenous saline. Subjects were tested at about the time of putative trough plasma buprenorphine concentrations. Setting Ambulatory. Subjects Twelve buprenorphine-maintained subjects: once daily sublingual dose (range = 2-22 mg); no dose change for 1.5-12 months. Ten healthy controls. Methods Intravenous morphine bolus and infusions administered over two hours to achieve two separate pseudo-steady-state plasma concentrations one hour apart. Pain tolerance was assessed by application of nociceptive stimuli (cold pressor [seconds] and electrical stimulation [volts]). Ten blood samples were collected for assay of plasma morphine, buprenorphine, and norbuprenorphine concentrations until three hours after the end of the last infusion; pain tolerance and respiration rate were measured to coincide with blood sampling times. Results Cold pressor responses (seconds): baseline: control 34 ± 6 vs buprenorphine 17 ± 2 (P = 0.009); morphine infusion-end: control 52 ± 11(P = 0.04), buprenorphine 17 ± 2 (P > 0.5); electrical stimulation responses (volts): baseline: control 65 ± 6 vs buprenorphine 53 ± 5 (P = 0.13); infusion-end: control 74 ± 5 (P = 0.007), buprenorphine 53 ± 5 (P > 0.98). Respiratory rate (breaths per minute): baseline: control 17 vs buprenorphine 14 (P = 0.03); infusion-end: control 15 (P = 0.09), buprenorphine 12 (P < 0.01). Infusion-end plasma morphine concentrations (ng/mL): control 23 ± 1, buprenorphine 136 ± 10. Conclusions Buprenorphine subjects, compared with controls, were hyperalgesic (cold pressor test), did not experience antinociception, despite high plasma morphine concentrations, and experienced respiratory depression. Clinical implications are discussed.
Collapse
Affiliation(s)
- Peter Athanasos
- Discipline of Psychiatry, Flinders University, Bedford Park, Australia
| | - Walter Ling
- Integrated Substance Abuse Programs, University of California, Los Angeles, California, USA
| | - Felix Bochner
- Discipline of Pharmacology, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, Australia.,Department of Clinical Pharmacology, Royal Adelaide Hospital, Adelaide, Australia
| | - Jason M White
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | - Andrew A Somogyi
- Discipline of Pharmacology, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, Australia.,Department of Clinical Pharmacology, Royal Adelaide Hospital, Adelaide, Australia
| |
Collapse
|
32
|
White JM, Lee HJ, Malone P, DeWeerth SP, Tansey KE. Temporal and spatial dynamics of spinal sensorimotor processing in an intersegmental cutaneous nociceptive reflex. J Neurophysiol 2019; 122:616-631. [PMID: 31166824 DOI: 10.1152/jn.00146.2019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The cutaneus trunci muscle (CTM) reflex produces a skin "shrug" in response to pinch on a rat's back through a three-part neural circuit: 1) A-fiber and C-fiber afferents in segmental dorsal cutaneous nerves (DCNs) from lumbar to cervical levels, 2) ascending propriospinal interneurons, and 3) the CTM motoneuron pool located at the cervicothoracic junction. We recorded neurograms from a CTM nerve branch in response to electrical stimulation. The pulse trains were delivered at multiple DCNs (T6-L1), on both sides of the midline, at two stimulus strengths (0.5 or 5 mA, to activate Aδ fibers or Aδ and C fibers, respectively) and four stimulation frequencies (1, 2, 5, or 10 Hz) for 20 s. We quantified both the temporal dynamics (i.e., latency, sensitization, habituation, and frequency dependence) and the spatial dynamics (spinal level) of the reflex. The evoked responses were time-windowed into Early, Mid, Late, and Ongoing phases, of which the Mid phase, between the Early (Aδ fiber mediated) and Late (C fiber mediated) phases, has not been previously identified. All phases of the response varied with stimulus strength, frequency, history, and DCN level/side stimulated. In addition, we observed nociceptive characteristics like C fiber-mediated sensitization (wind-up) and habituation. Finally, the range of latencies in the ipsilateral responses were not very large rostrocaudally, suggesting a myelinated neural path within the ipsilateral spinal cord for at least the A fiber-mediated Early-phase response. Overall, these results demonstrate that the CTM reflex shares the temporal dynamics in other nociceptive reflexes and exhibits spatial (segmental and lateral) dynamics not seen in those reflexes.NEW & NOTEWORTHY We have physiologically studied an intersegmental reflex exploring detailed temporal, stimulus strength-based, stimulation history-dependent, lateral and segmental quantification of the reflex responses to cutaneous nociceptive stimulations. We found several physiological features in this reflex pathway, e.g., wind-up, latency changes, and somatotopic differences. These physiological observations allow us to understand how the anatomy of this reflex may be organized. We have also identified a new phase of this reflex, termed the "mid" response.
Collapse
Affiliation(s)
- Jason M White
- Department of Biomedical Engineering, Georgia Institute of Technology-Emory University, Atlanta, Georgia
| | - Hyun Joon Lee
- Department of Physiology, Emory University, Atlanta, Georgia.,Department of Neurology, Emory University, Atlanta, Georgia
| | - Patrick Malone
- Department of Physiology, Emory University, Atlanta, Georgia.,Department of Neurology, Emory University, Atlanta, Georgia
| | - Stephen P DeWeerth
- Department of Biomedical Engineering, Georgia Institute of Technology-Emory University, Atlanta, Georgia.,School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia
| | - Keith E Tansey
- Department of Physiology, Emory University, Atlanta, Georgia.,Department of Neurology, Emory University, Atlanta, Georgia.,Spinal Cord Injury Clinic, Atlanta Department of Veterans Affairs Medical Center, Atlanta, Georgia
| |
Collapse
|
33
|
Pajcin M, White JM, Banks S, Dorrian J, Paech GM, Grant CL, Johnson K, Tooley K, Aidman E, Fidock J, Kamimori GH, Della Vedova CB. Effects of strategic early-morning caffeine gum administration on association between salivary alpha-amylase and neurobehavioural performance during 50 h of sleep deprivation. Accid Anal Prev 2019; 126:160-172. [PMID: 29402402 DOI: 10.1016/j.aap.2018.01.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 01/18/2018] [Accepted: 01/18/2018] [Indexed: 06/07/2023]
Abstract
Self-assessment is the most common method for monitoring performance and safety in the workplace. However, discrepancies between subjective and objective measures have increased interest in physiological assessment of performance. In a double-blind placebo-controlled study, 23 healthy adults were randomly assigned to either a placebo (n = 11; 5 F, 6 M) or caffeine condition (n = 12; 4 F, 8 M) while undergoing 50 h (i.e. two days) of total sleep deprivation. In previous work, higher salivary alpha-amylase (sAA) levels were associated with improved psychomotor vigilance and simulated driving performance in the placebo condition. In this follow-up article, the effects of strategic caffeine administration on the previously reported diurnal profiles of sAA and performance, and the association between sAA and neurobehavioural performance were investigated. Participants were given a 10 h baseline sleep opportunity (monitored via standard polysomnography techniques) prior to undergoing sleep deprivation (total sleep time: placebo = 8.83 ± 0.48 h; caffeine = 9.01 ± 0.48 h). During sleep deprivation, caffeine gum (200 mg) was administered at 01:00 h, 03:00 h, 05:00 h, and 07:00 h to participants in the caffeine condition (n = 12). This strategic administration of caffeine gum (200 mg) has been shown to be effective at maintaining cognitive performance during extended wakefulness. Saliva samples were collected, and psychomotor vigilance and simulated driving performance assessed at three-hour intervals throughout wakefulness. Caffeine effects on diurnal variability were compared with previously reported findings in the placebo condition (n = 11). The impact of caffeine on the circadian profile of sAA coincided with changes in neurobehavioural performance. Higher sAA levels were associated with improved performance on the psychomotor vigilance test during the first 24 h of wakefulness in the caffeine condition. However, only the association between sAA and response speed (i.e. reciprocal-transform of mean reaction time) was consistent across both days of sleep deprivation. The association between sAA and driving performance was not consistent across both days of sleep deprivation. Results show that the relationship between sAA and reciprocal-transform of mean reaction time on the psychomotor vigilance test persisted in the presence of caffeine, however the association was relatively weaker as compared with the placebo condition.
Collapse
Affiliation(s)
- Maja Pajcin
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, AUS.
| | - Jason M White
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, AUS
| | - Siobhan Banks
- Centre for Sleep Research, University of South Australia, Magill, SA, AUS
| | - Jill Dorrian
- Centre for Sleep Research, University of South Australia, Magill, SA, AUS
| | - Gemma M Paech
- Centre for Sleep Research, University of South Australia, Magill, SA, AUS
| | - Crystal L Grant
- Centre for Sleep Research, University of South Australia, Magill, SA, AUS
| | - Kayla Johnson
- Land Division, Defence Science and Technology Group, Department of Defence, Edinburgh, SA, AUS
| | - Katie Tooley
- Land Division, Defence Science and Technology Group, Department of Defence, Edinburgh, SA, AUS
| | - Eugene Aidman
- Land Division, Defence Science and Technology Group, Department of Defence, Edinburgh, SA, AUS
| | - Justin Fidock
- Land Division, Defence Science and Technology Group, Department of Defence, Edinburgh, SA, AUS
| | - Gary H Kamimori
- Behavioral Biology Branch, Walter Reed Army Institute for Research, Silver Springs, MD, USA
| | - Chris B Della Vedova
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, SA, AUS
| |
Collapse
|
34
|
Bade R, Ghetia M, Nguyen L, Tscharke BJ, White JM, Gerber C. Simultaneous determination of 24 opioids, stimulants and new psychoactive substances in wastewater. MethodsX 2019; 6:953-960. [PMID: 31080758 PMCID: PMC6500910 DOI: 10.1016/j.mex.2019.04.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 04/17/2019] [Indexed: 11/29/2022] Open
Abstract
Wastewater-based epidemiology has become a reputable means to estimate drug consumption within a community. However, these methods typically focus solely on illicit drugs or a single chemical family, with multi-class methods out of favour due to the increased analytical challenges. •A sensitive liquid chromatography - mass spectrometry method was developed for the simultaneous determination of 24 opioids, stimulants and new psychoactive substances in influent wastewater.•Filtered wastewater samples, preserved with sodium metabisulfite, were pretreated and 1000 times concentrated using off-line solid phase extraction.•The method was optimised and fully validated for all compounds, with limits of quantification between 0.2 and 300 ng/L.
Collapse
Affiliation(s)
- Richard Bade
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia
| | - Maulik Ghetia
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia
| | - Lynn Nguyen
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia
| | - Benjamin J. Tscharke
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia
- Queensland Alliance for Environmental Health Science (QAEHS), University of Queensland, 20 Cornwall Street Woolloongabba, Queensland, 4102, Australia
| | - Jason M. White
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia
| | - Cobus Gerber
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia
| |
Collapse
|
35
|
Cheng J, Gregorich SE, Gansky SA, Fisher-Owens SA, Kottek AM, White JM, Mertz EA. Constructing Matched Groups in Dental Observational Health Disparity Studies for Causal Effects. JDR Clin Trans Res 2019; 5:82-91. [PMID: 30931723 DOI: 10.1177/2380084419830655] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
INTRODUCTION Electronic health record (EHR) systems provide investigators with rich data from which to examine actual impacts of care delivery in real-world settings. However, confounding is a major concern when comparison groups are not randomized. OBJECTIVES This article introduced a step-by-step strategy to construct comparable matched groups in a dental study based on the EHR of the Willamette Dental Group. This strategy was employed in preparation for a longitudinal study evaluating the impact of a standardized risk-based caries prevention and management program across patients with public versus private dental insurance in Oregon. METHODS This study constructed comparable dental patient groups through a process of 1) evaluating the need for and feasibility of matching, 2) considering different matching methods, and 3) evaluating matching quality. The matched groups were then compared for their average ratio in the number of decayed, missing, and filled tooth surfaces (DMFS + dmfs) at baseline. RESULTS This systematic process resulted in comparably matched groups in baseline covariates but with a clear baseline disparity in caries experience between them. The weighted average ratio in our study showed that, at baseline, publicly insured patients had 1.21-times (95% CI: 1.08 to 1.32) and 1.21-times (95% CI: 1.08 to 1.37) greater number of DMFS + dmfs and number of decayed tooth surfaces (DS + ds) than privately insured patients, respectively. CONCLUSION Matching is a useful tool to create comparable groups with EHR data to resemble randomized studies, as demonstrated by our study where even with similar demographics, neighborhood and clinic characteristics, publicly insured pediatric patients had greater numbers of DMFS + dmfs and DS + ds than privately insured pediatric patients. KNOWLEDGE TRANSFER STATEMENT This article provides a systematic, step-by-step strategy for investigators to follow when matching groups in a study-in this case, a study based on electronic health record data. The results from this study will provide patients, clinicians, and policy makers with information to better understand the disparities in oral health between comparable publicly and privately insured pediatric patients who have similar values in individual, clinic, and community covariates. Such understanding will help clinicians and policy makers modify oral health care and relevant policies to improve oral health and reduce disparities between publicly and privately insured patients.
Collapse
Affiliation(s)
- J Cheng
- Department of Preventive and Restorative Dental Sciences, School of Dentistry, University of California-San Francisco, San Francisco, CA, USA.,Center to Address Disparities in Children's Oral Health, School of Dentistry, University of California-San Francisco, San Francisco, CA, USA
| | - S E Gregorich
- Department of Preventive and Restorative Dental Sciences, School of Dentistry, University of California-San Francisco, San Francisco, CA, USA.,Center to Address Disparities in Children's Oral Health, School of Dentistry, University of California-San Francisco, San Francisco, CA, USA.,Department of Medicine, School of Medicine, University of California-San Francisco, San Francisco, CA, USA
| | - S A Gansky
- Department of Preventive and Restorative Dental Sciences, School of Dentistry, University of California-San Francisco, San Francisco, CA, USA.,Center to Address Disparities in Children's Oral Health, School of Dentistry, University of California-San Francisco, San Francisco, CA, USA.,Philip R. Lee Institute for Health Policy Studies, University of California-San Francisco, San Francisco, CA, USA.,Bakar Computational Health Sciences Institute, University of California-San Francisco, San Francisco, CA, USA
| | - S A Fisher-Owens
- Center to Address Disparities in Children's Oral Health, School of Dentistry, University of California-San Francisco, San Francisco, CA, USA.,Department of Pediatrics, School of Medicine, University of California-San Francisco, San Francisco, CA, USA
| | - A M Kottek
- Center to Address Disparities in Children's Oral Health, School of Dentistry, University of California-San Francisco, San Francisco, CA, USA.,Philip R. Lee Institute for Health Policy Studies, University of California-San Francisco, San Francisco, CA, USA
| | - J M White
- Department of Preventive and Restorative Dental Sciences, School of Dentistry, University of California-San Francisco, San Francisco, CA, USA.,Center to Address Disparities in Children's Oral Health, School of Dentistry, University of California-San Francisco, San Francisco, CA, USA
| | - E A Mertz
- Department of Preventive and Restorative Dental Sciences, School of Dentistry, University of California-San Francisco, San Francisco, CA, USA.,Center to Address Disparities in Children's Oral Health, School of Dentistry, University of California-San Francisco, San Francisco, CA, USA.,Philip R. Lee Institute for Health Policy Studies, University of California-San Francisco, San Francisco, CA, USA
| |
Collapse
|
36
|
Pearson-Dennett V, Faulkner PL, Collie B, Wilcox RA, Vogel AP, Thewlis D, Esterman A, McDonnell MN, Gandevia SC, White JM, Todd G. Use of illicit amphetamines is associated with long-lasting changes in hand circuitry and control. Clin Neurophysiol 2019; 130:655-665. [PMID: 30870801 DOI: 10.1016/j.clinph.2019.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 01/16/2019] [Accepted: 02/04/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The study aim was to determine if use of illicit amphetamines or ecstasy is associated with abnormal excitability of the corticomotoneuronal pathway and manipulation of novel objects with the hand. METHODS Three groups of adults aged 18-50 years were investigated: individuals with a history of illicit amphetamine use, individuals with a history of ecstasy use but minimal use of other stimulants, and non-drug users. Transcranial magnetic stimulation was delivered to the motor cortex and the electromyographic response (motor evoked potential; MEP) was recorded from a contralateral hand muscle. Participants also gripped and lifted a novel experimental object consisting of two strain gauges and an accelerometer. RESULTS Resting MEP amplitude was larger in the amphetamine group (6M, 6F) than the non-drug and ecstasy groups (p < 0.005) in males but not females. Overestimation of grip force during manipulation of a novel object was observed in the amphetamine group (p = 0.020) but not the ecstasy group. CONCLUSIONS History of illicit amphetamine use, in particular methamphetamine, is associated with abnormal motor cortical and/or corticomotoneuronal excitability in males and abnormal manipulation of novel objects in both males and females. SIGNIFICANCE Abnormal excitability and hand function is evident months to years after cessation of illicit amphetamine use.
Collapse
Affiliation(s)
- Verity Pearson-Dennett
- School of Pharmacy and Medical Sciences, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia.
| | - Patrick L Faulkner
- School of Pharmacy and Medical Sciences, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia; School of Health Sciences, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia.
| | - Brittany Collie
- School of Pharmacy and Medical Sciences, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia.
| | - Robert A Wilcox
- School of Pharmacy and Medical Sciences, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia; Department of Neurology, Flinders Medical Centre, Bedford Park, SA 5042, Australia; Human Physiology, Medical School, Flinders University, Bedford Park, SA 5042, Australia.
| | - Adam P Vogel
- Centre for Neuroscience of Speech, The University of Melbourne, Carlton, VIC 3010, Australia; Department of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen 72076, Germany; Redenlab, Carlton, VIC 3053, Australia.
| | - Dominic Thewlis
- Centre for Orthopaedic & Trauma Research, The University of Adelaide, Adelaide, SA 5000, Australia.
| | - Adrian Esterman
- School of Nursing and Midwifery, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia.
| | - Michelle N McDonnell
- Alliance for Research in Exercise, Nutrition and Activity, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia.
| | - Simon C Gandevia
- Neuroscience Research Australia, PO Box 1165, Randwick, NSW 2031, Australia; Prince of Wales Clinical School, University of New South Wales, Sydney, NSW 2052, Australia.
| | - Jason M White
- School of Pharmacy and Medical Sciences, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia.
| | - Gabrielle Todd
- School of Pharmacy and Medical Sciences, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia.
| |
Collapse
|
37
|
Bade R, Tscharke BJ, White JM, Grant S, Mueller JF, O'Brien J, Thomas KV, Gerber C. LC-HRMS suspect screening to show spatial patterns of New Psychoactive Substances use in Australia. Sci Total Environ 2019; 650:2181-2187. [PMID: 30290358 DOI: 10.1016/j.scitotenv.2018.09.348] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 09/27/2018] [Accepted: 09/27/2018] [Indexed: 06/08/2023]
Abstract
New Psychoactive Substances (NPS) are an ever-changing class of compounds designed to imitate the effects of current recreational drugs. Such a diverse market is difficult to assess by traditional means, while collected information can become obsolete before it is available. Wastewater-based epidemiology is one technique which can capture information on where and when NPS appear at the community level. The aim of this study was to identify NPS in wastewater samples using a suspect screening approach. Weekend samples were collected from 50 wastewater treatment plants from Australian capital cities and regional areas across all eight States and Territories and screened against a database containing almost 200 NPS. A total of 22 different NPS were found across all regional and metropolitan wastewater treatment plants. Results showed that the most detected compounds were of the cathinone class, with both Alpha-PVP and methcathinone found in every region. In addition, five different synthetic cannabinoids were detected, at least once in half of the regions analysed. Herein, we report the first comprehensive nationwide analysis of NPS and show the utility of liquid chromatography-high resolution mass spectrometry screening for delivering spatial information of the NPS being consumed in communities.
Collapse
Affiliation(s)
- Richard Bade
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide 5001, Australia
| | - Benjamin J Tscharke
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide 5001, Australia; Queensland Alliance for Environmental Health Science (QAEHS), University of Queensland, 20 Cornwall Street Woolloongabba, Queensland 4102, Australia
| | - Jason M White
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide 5001, Australia
| | - Sharon Grant
- Queensland Alliance for Environmental Health Science (QAEHS), University of Queensland, 20 Cornwall Street Woolloongabba, Queensland 4102, Australia
| | - Jochen F Mueller
- Queensland Alliance for Environmental Health Science (QAEHS), University of Queensland, 20 Cornwall Street Woolloongabba, Queensland 4102, Australia
| | - Jake O'Brien
- Queensland Alliance for Environmental Health Science (QAEHS), University of Queensland, 20 Cornwall Street Woolloongabba, Queensland 4102, Australia
| | - Kevin V Thomas
- Queensland Alliance for Environmental Health Science (QAEHS), University of Queensland, 20 Cornwall Street Woolloongabba, Queensland 4102, Australia
| | - Cobus Gerber
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide 5001, Australia.
| |
Collapse
|
38
|
Bade R, Stockham P, Painter B, Celma A, Bijlsma L, Hernandez F, White JM, Gerber C. Investigating the appearance of new psychoactive substances in South Australia using wastewater and forensic data. Drug Test Anal 2018; 11:250-256. [DOI: 10.1002/dta.2484] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 08/09/2018] [Accepted: 08/10/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Richard Bade
- School of Pharmacy and Medical Sciences; University of South Australia; Adelaide 5001 Australia
| | - Peter Stockham
- Forensic Science SA; GPO Box 2790 Adelaide 5001 Australia
- College of Science and Engineering, Flinders University; Flinders University; Bedford Park South Australia
| | - Ben Painter
- Forensic Science SA; GPO Box 2790 Adelaide 5001 Australia
| | - Alberto Celma
- Research Institute for Pesticides and Water; University Jaume I; Avda. Sos Baynat s/n E-12071 Castellon Spain
| | - Lubertus Bijlsma
- Research Institute for Pesticides and Water; University Jaume I; Avda. Sos Baynat s/n E-12071 Castellon Spain
| | - Felix Hernandez
- Research Institute for Pesticides and Water; University Jaume I; Avda. Sos Baynat s/n E-12071 Castellon Spain
| | - Jason M. White
- School of Pharmacy and Medical Sciences; University of South Australia; Adelaide 5001 Australia
| | - Cobus Gerber
- School of Pharmacy and Medical Sciences; University of South Australia; Adelaide 5001 Australia
| |
Collapse
|
39
|
Mousavi SA, Montazerozohori M, Masoudiasl A, Mahmoudi G, White JM. Sonication-assisted synthesis of a new cationic zinc nitrate complex with a tetradentate Schiff base ligand: Crystal structure, Hirshfeld surface analysis and investigation of different parameters influence on morphological properties. Ultrason Sonochem 2018; 46:26-35. [PMID: 29739510 DOI: 10.1016/j.ultsonch.2018.02.050] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 02/27/2018] [Accepted: 02/28/2018] [Indexed: 06/08/2023]
Abstract
A nanostructured cationic zinc nitrate complex with a formula of [ZnLNO3]NO3 (where L = (N2E,N2'E)-N1,N1'-(ethane-1,2-diyl)bis(N2-((E)-3-phenylallylidene)ethane-1,2-diamine)) was prepared by sonochemical process and characterized by single crystal X-ray crystallography, scanning electron microscopy (SEM), FT-IR and NMR spectroscopy and X-ray powder diffraction (XRPD). The X-ray analysis demonstrates the formation of a cationic complex that metal center is five-coordinated by four nitrogen atom from Schiff base ligand and one oxygen atom from nitrate group. The crystal packing analysis demonstrates the essential role of the nitrate groups in the organization of supramolecular structure. The morphology and size of ultrasound-assisted synthesized zinc nitrate complex have been investigated using scanning electron microscopy (SEM) by changing parameters such as the concentration of initial reactants, the sonication power and reaction temperature. In addition the calcination of zinc nitrate complex in air atmosphere led to production of zinc oxide nanoparticles.
Collapse
Affiliation(s)
- S A Mousavi
- Department of Chemistry, Yasouj University, Yasouj 75918-74831, Iran
| | - M Montazerozohori
- Department of Chemistry, Yasouj University, Yasouj 75918-74831, Iran.
| | - A Masoudiasl
- Department of Chemistry, Payame Noor University, Tehran, Iran
| | - G Mahmoudi
- Department of Chemistry, Faculty of Science, University of Maragheh, P.O. Box 55181-83111, Maragheh, Iran
| | - J M White
- School of Chemistry and BIO-21 Institute, University of Melbourne, 30 Flemington Road, Parkville, Australia
| |
Collapse
|
40
|
Bade R, Tscharke BJ, Longo M, Cooke R, White JM, Gerber C. Investigating the correlation between wastewater analysis and roadside drug testing in South Australia. Drug Alcohol Depend 2018; 187:123-126. [PMID: 29660696 DOI: 10.1016/j.drugalcdep.2018.02.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 02/10/2018] [Accepted: 02/25/2018] [Indexed: 10/17/2022]
Abstract
BACKGROUND The societal impact of drug use is well known. An example is when drug-intoxicated drivers increase the burden on policing and healthcare services. METHODS This work presents the correlation of wastewater analysis (using UHPLC-MS/MS) and positive roadside drug testing results for methamphetamine, 3,4-methylenedioxymethamphetamine (MDMA) and cannabis from December 2011-December 2016 in South Australia. RESULTS Methamphetamine and MDMA showed similar trends between the data sources with matching increases and decreases, respectively. Cannabis was relatively steady based on wastewater analysis, but the roadside drug testing data started to diverge in the final part of the measurement period. CONCLUSIONS The ability to triangulate data as shown here validates both wastewater analysis and roadside drug testing. This suggests that changes in overall population drug use revealed by WWA is consistent and proportional with changes in drug-driving behaviours. The results show that, at higher levels of drug use as measured by wastewater analysis, there is an increase in drug driving in the community and therefore more strain on health services and police.
Collapse
Affiliation(s)
- Richard Bade
- School of Pharmacy and Medical Sciences, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia
| | - Benjamin J Tscharke
- School of Pharmacy and Medical Sciences, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia
| | - Marie Longo
- Drug and Alcohol Services South Australia, Adelaide, SA, Australia
| | - Richard Cooke
- Drug and Alcohol Services South Australia, Adelaide, SA, Australia
| | - Jason M White
- School of Pharmacy and Medical Sciences, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia
| | - Cobus Gerber
- School of Pharmacy and Medical Sciences, University of South Australia, GPO Box 2471, Adelaide, SA 5001, Australia.
| |
Collapse
|
41
|
Jahromi SM, Montazerozohori M, Masoudiasl A, Houshyar E, Joohari S, White JM. Sonochemical synthesis and characterization of new seven coordinated zinc, cadmium and mercury nitrate complexes: New precursors for nanostructure metal oxides. Ultrason Sonochem 2018; 41:590-599. [PMID: 29137791 DOI: 10.1016/j.ultsonch.2017.10.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 10/23/2017] [Accepted: 10/24/2017] [Indexed: 06/07/2023]
Abstract
The nitrate complexes of group 12 elements with a tridentate Schiff base ligand (L = (E)-N1-((E)-3- phenylallylidene)-N2-(2-((E)-((E)-3-phenylallylidene) amino)ethyl) ethane-1,2-diamine) were synthesized via sonochemical process and characterized by various physical and chemical methods. The structural analysis of the zinc nitrate complex by single crystal X-ray diffraction analysis shows that the central atom is seven-coordinated by three nitrogen atoms from the Schiff base ligand as well as four oxygen atoms from two different nitrate anions. The geometry around the metal center can be described as a distorted pentagonal bipyramid. The crystal packing analysis of zinc nitrate complex indicates that the intermolecular interactions related to nitrate groups plays the essential role in the orientation of supramolecular structure. Hirshfeld surfaces (HS) and their corresponding fingerprint plots (FP) have been also used for further investigation of crystal structure of zinc nitrate complex. Furthermore thermal analyses (TG/DTG) of three nanostructure complexes were carried out and discussed. Finally, direct thermolysis of zinc and cadmium nitrate complexes in air atmosphere led to the production of zinc and cadmium oxide nanoparticles.
Collapse
Affiliation(s)
| | - M Montazerozohori
- Department of Chemistry, Yasouj University, Yasouj 75918-74831, Iran.
| | - A Masoudiasl
- Department of Chemistry, Payame Noor University, Tehran, Iran
| | - E Houshyar
- Department of Mechanical Engineering of Biosystems, Faculty of Agriculture, Jahrom University, PO Box 74135-111, Jahrom, Iran
| | - S Joohari
- Department of Basic Sciences, Yasooj Branch, Islamic Azad University, Yasooj, Iran
| | - J M White
- School of Chemistry and BIO-21 Institute, University of Melbourne, 30 Flemington Road, Parkville, Australia
| |
Collapse
|
42
|
Hotham E, Haberfield M, Hillier S, White JM, Todd G. Upper limb function in children with attention-deficit/hyperactivity disorder (ADHD). J Neural Transm (Vienna) 2017; 125:713-726. [PMID: 29234901 DOI: 10.1007/s00702-017-1822-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 12/04/2017] [Indexed: 01/20/2023]
Abstract
Upper limb function was investigated in children with ADHD using objective methods. We hypothesised that children with ADHD exhibit abnormal dexterity, force application during manipulation of a novel object, and movement rhythmicity. Two groups of age- and gender-matched children were investigated: 35 typically developing children (controls, 10.5 ± 0.4 years, 32M-3F) and 29 children (11.5 ± 0.5 years, 27M-2F) with formally diagnosed ADHD according to DSM-IV-TR criteria. Participants underwent a series of screening tests and tests of upper limb function while "off" medication. Objective quantification of upper limb function involved measurement of force during a grip and lift task, maximal finger tapping task, and maximal pinch grip. Acceleration at the index finger was also measured during rest, flexion and extension, and a postural task to quantify tremor. The Movement Assessment Battery for Children-2 (MABC-2) was also administered. Significant between-group differences were observed in movement rhythmicity, manipulation of a novel object, and performance of the MABC-2 dexterity and aiming and catching components. Children with ADHD lifted a novel object using a lower grip force (P = 0.036), and held the object with a more variable grip force (P = 0.003), than controls. Rhythmicity of finger tapping (P = 0.008) and performance on the dexterity (P = 0.007) and aiming and catching (P = 0.042) components of the MABC-2 were also significantly poorer in the ADHD group than controls. Movement speed, maximum pinch grip strength, and tremor were unaffected. The results of the study show for the first time that ADHD is associated with deficits in multiple, but not all domains of upper limb function.
Collapse
Affiliation(s)
- Elizabeth Hotham
- School of Pharmacy and Medical Sciences and Sansom Institute for Health Research, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia
| | - Miranda Haberfield
- School of Pharmacy and Medical Sciences and Sansom Institute for Health Research, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia
| | - Susan Hillier
- School of Health Sciences and Sansom Institute for Health Research, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia
| | - Jason M White
- School of Pharmacy and Medical Sciences and Sansom Institute for Health Research, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia
| | - Gabrielle Todd
- School of Pharmacy and Medical Sciences and Sansom Institute for Health Research, University of South Australia, GPO Box 2471, Adelaide, SA, 5001, Australia.
| |
Collapse
|
43
|
Bade R, White JM, Gerber C. Qualitative and quantitative temporal analysis of licit and illicit drugs in wastewater in Australia using liquid chromatography coupled to mass spectrometry. Anal Bioanal Chem 2017; 410:529-542. [DOI: 10.1007/s00216-017-0747-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 11/02/2017] [Accepted: 11/05/2017] [Indexed: 11/30/2022]
|
44
|
Crowley P, White JM, Tscharke BJ, Gerber C. Wastewater analysis shows a large decrease in oxycodone use in Adelaide. Med J Aust 2017; 207:88. [DOI: 10.5694/mja17.00137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Accepted: 04/24/2017] [Indexed: 11/17/2022]
|
45
|
Newcombe DAL, Somogyi AA, Bochner F, White JM. Impaired psychomotor function and plasma methadone and levo-alpha-acetylmethadol (LAAM) concentrations in opioid-substitution patients. Exp Clin Psychopharmacol 2017; 25:223-233. [PMID: 28414496 DOI: 10.1037/pha0000114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Tolerance to the psychomotor impairing effects of opioid drugs is expected to develop with repeated dosing, but may be incomplete. The relationship between plasma opioid concentration and psychomotor function in opioid-dependent patients was examined to determine whether impairment was more likely at the time of highest plasma drug concentration. Sixteen patients participating in a cross-over trial comparing methadone and LAAM completed a tracking task (OSPAT) 11 times over the dosing-interval for methadone (24-hrs) and LAAM (48-hrs). Venous blood was collected for the quantification of plasma (R)-(-)-methadone, LAAM, and nor-LAAM concentrations. The Digit Symbol Substitution Test (DSST) and Trail-Making Test were administered at the time of peak plasma concentration. Ten healthy controls (HCs) also participated. OSPAT scores (obtained for 15 patients) fluctuated significantly across the dosing-interval for both drugs and were lower in patients than HCs at the times of peak concentrations of (R)-(-)-methadone (1 hr: (mean difference; 95% CI) (2.13; 0.18-4.08); 2 hrs: (2.38; 0.48-4.28) postdosing) and LAAM (2 hrs: (1.81; 0.09-3.53), and 4 hrs (1.90: 0.9-3.71) postdosing). Within-participant analysis of the peak-change from baseline for OSPAT scores found that 10 of the 15 patients could be categorized as impaired on methadone and 9 on LAAM. No HCs were impaired. Patients performed worse on the DSST and Trails-A than HCs, but not on Trails-B. Results suggest that some patients receiving opioids long term may exhibit impairment at the time of highest plasma drug concentration. These patients should be made aware that their ability to undertake complex tasks may be affected. (PsycINFO Database Record
Collapse
Affiliation(s)
| | | | | | - Jason M White
- School of Pharmacy and Medical Sciences, University of South Australia
| |
Collapse
|
46
|
Marshall WS, Bird MD, Godeke A, Larbalestier DC, Markiewicz WD, White JM. Bi-2223 Test Coils for High Resolution NMR Magnets. IEEE Trans Appl Supercond 2017; 27:4300905. [PMID: 30906172 PMCID: PMC6426130 DOI: 10.1109/tasc.2017.2652378] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Recently, significant improvement in the strain tolerance of Bi-2223 conductor has been achieved by lamination with high strength nickel alloy. The conductor, supplied by Sumitomo Electric and designated Type HT-NX, is now commercially available in lengths sufficient for manufacture of high-homogeneity solenoids. A program to fully exploit the improved conductor properties is now underway at the National High Magnetic Field Laboratory (NHMFL). Five coils are being made, the last of which is to demonstrate an NMR measurement approaching 1 GHz and 1 ppm over 10 mm volume. In so doing, we expect to demonstrate critical current fraction, and strain similar to that expected in 30 T NMR magnets. The coils will be tested inside an existing 16 Tesla large-bore background magnet at the NHMFL. The design of the NMR demonstration coil is presented first, with expected values for field, homogeneity and strain given. A technology development program is then outlined, which includes fabrication of four test coils to test various design features, develop fabrication tooling and train personnel.
Collapse
Affiliation(s)
- W S Marshall
- The National High Magnetic Field Laboratory, Tallahassee, FL 32310, USA,
| | - M D Bird
- The National High Magnetic Field Laboratory, Tallahassee, FL 32310, USA
| | - A Godeke
- The National High Magnetic Field Laboratory, Tallahassee, FL 32310, USA
| | - D C Larbalestier
- The National High Magnetic Field Laboratory, Tallahassee, FL 32310, USA
| | - W D Markiewicz
- The National High Magnetic Field Laboratory, Tallahassee, FL 32310, USA
| | - J M White
- The National High Magnetic Field Laboratory, Tallahassee, FL 32310, USA
| |
Collapse
|
47
|
Abstract
BACKGROUND Managed withdrawal is a necessary step prior to drug-free treatment or as the endpoint of long-term substitution treatment. OBJECTIVES To assess the effects of opioid antagonists plus minimal sedation for opioid withdrawal. Comparators were placebo as well as more established approaches to detoxification, such as tapered doses of methadone, adrenergic agonists, buprenorphine and symptomatic medications. SEARCH METHODS We updated our searches of the following databases to December 2016: CENTRAL, MEDLINE, Embase, PsycINFO and Web of Science. We also searched two trials registers and checked the reference lists of included studies for further references to relevant studies. SELECTION CRITERIA We included randomised and quasi-randomised controlled clinical trials along with prospective controlled cohort studies comparing opioid antagonists plus minimal sedation versus other approaches or different opioid antagonist regimens for withdrawal in opioid-dependent participants. DATA COLLECTION AND ANALYSIS We used standard methodological procedures expected by Cochrane. MAIN RESULTS Ten studies (6 randomised controlled trials and 4 prospective cohort studies, involving 955 participants) met the inclusion criteria for the review. We considered 7 of the 10 studies to be at high risk of bias in at least one of the domains we assessed.Nine studies compared an opioid antagonist-adrenergic agonist combination versus a treatment regimen based primarily on an alpha2-adrenergic agonist (clonidine or lofexidine). Other comparisons (placebo, tapered doses of methadone, buprenorphine) made by included studies were too diverse for any meaningful analysis. This review therefore focuses on the nine studies comparing an opioid antagonist (naltrexone or naloxone) plus clonidine or lofexidine versus treatment primarily based on clonidine or lofexidine.Five studies took place in an inpatient setting, two studies were in outpatients with day care, two used day care only for the first day of opioid antagonist administration, and one study described the setting as outpatient without indicating the level of care provided.The included studies were heterogeneous in terms of the type of opioid antagonist treatment regimen, the comparator, the outcome measures assessed, and the means of assessing outcomes. As a result, the validity of any estimates of overall effect is doubtful, therefore we did not calculate pooled results for any of the analyses.The quality of the evidence for treatment with an opioid antagonist-adrenergic agonist combination versus an alpha2-adrenergic agonist is very low. Two studies reported data on peak withdrawal severity, and four studies reported data on the average severity over the period of withdrawal. Peak withdrawal induced by opioid antagonists in combination with an adrenergic agonist appears to be more severe than withdrawal managed with clonidine or lofexidine alone, but the average severity over the withdrawal period is less. In some situations antagonist-induced withdrawal may be associated with significantly higher rates of treatment completion compared to withdrawal managed with adrenergic agonists. However, this result was not consistent across studies, and the extent of any benefit is highly uncertain.We could not extract any data on the occurrence of adverse events, but two studies reported delirium or confusion following the first dose of naltrexone. Delirium may be more likely with higher initial doses and with naltrexone rather than naloxone (which has a shorter half-life), but we could not confirm this from the available evidence.Insufficient data were available to make any conclusions on the best duration of treatment. AUTHORS' CONCLUSIONS Using opioid antagonists plus alpha2-adrenergic agonists is a feasible approach for managing opioid withdrawal. However, it is unclear whether this approach reduces the duration of withdrawal or facilitates transfer to naltrexone treatment to a greater extent than withdrawal managed primarily with an adrenergic agonist.A high level of monitoring and support is desirable for several hours following administration of opioid antagonists because of the possibility of vomiting, diarrhoea and delirium.Using opioid antagonists to induce and accelerate opioid withdrawal is not currently an active area of research or clinical practice, and the research community should give greater priority to investigating approaches, such as those based on buprenorphine, that facilitate the transition to sustained-release preparations of naltrexone.
Collapse
Affiliation(s)
- Linda Gowing
- University of AdelaideDiscipline of PharmacologyFrome RoadAdelaideSouth AustraliaAustralia5005
| | - Robert Ali
- University of AdelaideDiscipline of PharmacologyFrome RoadAdelaideSouth AustraliaAustralia5005
| | - Jason M White
- University of South AustraliaSchool of Pharmacy and Medical SciencesGPO Box 2471AdelaideAustraliaSA 5001
| | | |
Collapse
|
48
|
Pajcin M, Banks S, White JM, Dorrian J, Paech GM, Grant C, Johnson K, Tooley K, Fidock J, Kamimori GH, Della Vedova CB. Decreased salivary alpha-amylase levels are associated with performance deficits during sleep loss. Psychoneuroendocrinology 2017; 78:131-141. [PMID: 28196342 DOI: 10.1016/j.psyneuen.2017.01.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 01/23/2017] [Accepted: 01/24/2017] [Indexed: 11/29/2022]
Abstract
During sleep deprivation, neurobehavioral functions requiring sustained levels of attention and alertness are significantly impaired. Discrepancies between subjective measures of sleepiness and objective performance during sustained operations have led to interest in physiological monitoring of operator performance. Alertness, vigilance, and arousal are modulated by the wake-promoting actions of the central noradrenergic system. Salivary alpha-amylase (sAA) has been proposed as a sensitive peripheral measure of noradrenergic activity, but limited research has investigated the relationship between sAA and performance. In a laboratory-controlled environment, we investigated the relationship between sAA levels, subjective sleepiness, and performance during two days (50h) of total sleep deprivation. Beginning at 09:00, twelve healthy participants (5 females) aged 22.5±2.5years (mean±SD) provided saliva samples, recorded ratings of subjective sleepiness, completed a brief 3-min psychomotor vigilance task (PVT-B) and performed a 40-min simulated driving task, at regular 3h intervals during wakefulness. Ratings of subjective sleepiness exhibited a constant linear increase (p<0.001) during sleep deprivation. In contrast, sAA levels showed a marked diurnal profile, with levels increasing during the day (p<0.001) and steadily declining in the evening and early-morning (p<0.001). PVT-B (mean reaction time and mean slowest 10% reaction time) and simulated driving performance (speed deviation and lane deviation) also exhibited diurnal profiles across the two days of sleep deprivation. Performance peaked in the afternoon (p<0.001) and then steadily worsened as wakefulness continued into the evening and early-morning (p<0.001). Further analysis revealed that higher sAA levels in the hour preceding each performance assessment were associated with better PVT-B and driving performance (p<0.001). These findings suggest that sAA measures may be suitable indicators of performance deficits during sustained wakefulness and highlight the potential for sAA to be considered for physiological monitoring of performance. In operational environments sAA levels, as part of a panel of physiological measures, may be useful for assessing fitness-for-duty prior to safety being compromised or when performance deficits are unknown.
Collapse
Affiliation(s)
- Maja Pajcin
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia.
| | - Siobhan Banks
- Centre for Sleep Research, University of South Australia, Adelaide, Australia
| | - Jason M White
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | - Jill Dorrian
- Centre for Sleep Research, University of South Australia, Adelaide, Australia
| | - Gemma M Paech
- Centre for Sleep Research, University of South Australia, Adelaide, Australia
| | - Crystal Grant
- Centre for Sleep Research, University of South Australia, Adelaide, Australia
| | - Kayla Johnson
- Land Division, Defence Science and Technology Group, Department of Defence, Edinburgh, South Australia, Australia
| | - Katie Tooley
- Land Division, Defence Science and Technology Group, Department of Defence, Edinburgh, South Australia, Australia
| | - Justin Fidock
- Land Division, Defence Science and Technology Group, Department of Defence, Edinburgh, South Australia, Australia
| | - Gary H Kamimori
- Behavioral Biology Branch, Walter Reed Army Institute for Research, Silver Springs, MD, United States
| | - Chris B Della Vedova
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| |
Collapse
|
49
|
Lee HJ, White JM, Chung J, Tansey KE. Peripheral and central anatomical organization of cutaneous afferent subtypes in a rat nociceptive intersegmental spinal reflex. J Comp Neurol 2017; 525:2216-2234. [DOI: 10.1002/cne.24201] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Revised: 02/28/2017] [Accepted: 03/01/2017] [Indexed: 02/03/2023]
Affiliation(s)
- Hyun Joon Lee
- Departments of Neurology and PhysiologyEmory University School of MedicineAtlanta Georgia
| | - Jason M. White
- Biomedical EngineeringGeorgia Institute of Technology/Emory UniversityAtlanta Georgia
| | - Jumi Chung
- Departments of Neurology and PhysiologyEmory University School of MedicineAtlanta Georgia
| | - Keith E. Tansey
- Departments of Neurology and PhysiologyEmory University School of MedicineAtlanta Georgia
- Spinal Cord Injury Clinic, Atlanta Veterans Administration Medical CenterAtlanta Georgia
| |
Collapse
|
50
|
Godeke A, Abraimov DV, Arroyo E, Barret N, Bird MD, Francis A, Jaroszynski J, Kurteva DV, Markiewicz WD, Marks EL, Marshall WS, McRae DM, Noyes PD, Pereira RCP, Viouchkov YL, Walsh RP, White JM. A Feasibility Study of High-Strength Bi-2223 Conductor for High-Field Solenoids. Supercond Sci Technol 2017; 30:035011. [PMID: 28360455 PMCID: PMC5367628 DOI: 10.1088/1361-6668/aa5582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We performed a feasibility study on a high-strength Bi2-x Pb x Sr2Ca2Cu3O10-x (Bi-2223) tape conductor for high-field solenoid applications. The investigated conductor, DI-BSCCO Type HT-XX, is a pre-production version of Type HT-NX, which has recently become available from Sumitomo Electric Industries (SEI). It is based on their DI-BSCCO Type H tape, but laminated with a high-strength Ni-alloy. We used stress-strain characterizations, single- and double-bend tests, easy- and hard-way bent coil-turns at various radii, straight and helical samples in up to 31.2 T background field, and small 20-turn coils in up to 17 T background field to systematically determine the electro-mechanical limits in magnet-relevant conditions. In longitudinal tensile tests at 77 K, we found critical stress- and strain-levels of 516 MPa and 0.57%, respectively. In three decidedly different experiments we detected an amplification of the allowable strain with a combination of pure bending and Lorentz loading to ≥ 0.92% (calculated elastically at the outer tape edge). This significant strain level, and the fact that it is multi-filamentary conductor and available in the reacted and insulated state, makes DI-BSCCO HT-NX highly suitable for very high-field solenoids, for which high current densities and therefore high loads are required to retain manageable magnet dimensions.
Collapse
Affiliation(s)
- A Godeke
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL 31310, USA,
| | - D V Abraimov
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL 31310, USA,
| | - E Arroyo
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL 31310, USA,
| | - N Barret
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL 31310, USA,
| | - M D Bird
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL 31310, USA,
| | - A Francis
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL 31310, USA,
| | - J Jaroszynski
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL 31310, USA,
| | - D V Kurteva
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL 31310, USA,
| | - W D Markiewicz
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL 31310, USA,
| | - E L Marks
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL 31310, USA,
| | - W S Marshall
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL 31310, USA,
| | - D M McRae
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL 31310, USA,
| | - P D Noyes
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL 31310, USA,
| | - R C P Pereira
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL 31310, USA,
| | - Y L Viouchkov
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL 31310, USA,
| | - R P Walsh
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL 31310, USA,
| | - J M White
- National High Magnetic Field Laboratory, 1800 East Paul Dirac Drive, Tallahassee, FL 31310, USA,
| |
Collapse
|