Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 20
Filtrar
1.
Int J Drug Policy ; : 104106, 2023 Jul 14.
Artigo em Inglês | MEDLINE | ID: mdl-37563038

RESUMO

BACKGROUND: Take-home naloxone (THN) programmes have been associated with reductions in opioid-related mortality. In response to high rates of drug-related deaths in Scotland, the Scottish Government commissioned the 'How to save a life' (HTSAL) mass media campaign to: (1) increase awareness of drug-related deaths and how to respond to an overdose, and (2) increase the supply of THN. The aim of this study was to assess the effect of the campaign on the supply of THN. METHODS: We used an interrupted time series design to assess the effect of the HTSAL mass media campaign on the national community supply of THN. The study time period was August 2020-December 2021. We modelled two key dates: the start of the campaign (week beginning (w/b) 30th of August 2021) and after the end of the main campaign (w/b 25th of October 2021). RESULTS: The total number of THN kits distributed in the community in Scotland during the study period was 27,064. The mean number of THN kits distributed per week (relative to the pre-campaign period), increased by 126% during the campaign and 57% post-campaign. In segmented regression analyses, the pre-campaign trend in the number of THN kits supplied was increasing by an average of 1% each week (RR=1.01, 95% CI 1.01 to 1.01, p<0.001). Once the campaign started, a significant change in level was observed, and the number of kits increased by 75% (RR=1.75, 95% CI 1.29 to 2.40, p<0.001). The trend during the campaign was stable (i.e. not increasing or decreasing) but a significant change in level was observed when the campaign ended, and the number of THN kits supplied decreased by 32% (RR=0.68, 95% CI 0.46 to 0.98, p = 0.042). The trend during the post-campaign period was stable. CONCLUSIONS: The HTSAL campaign had a short term, but large and significant impact, on the community supply of THN in Scotland. Mass media campaigns could be combined with other interventions and strategies to maintain the increased uptake of THN outside of campaign periods.

2.
Int J Drug Policy ; : 104111, 2023 Jul 07.
Artigo em Inglês | MEDLINE | ID: mdl-37563039

RESUMO

BACKGROUND: Take home naloxone (THN) programmes are effective at reducing opioid related mortality, but require high levels of distribution, including to the general public. Mass media campaigns can be effective in improving public understanding of a topic and encouraging behavior change. Whilst mass media campaigns focusing on naloxone have been developed internationally, there is a lack of research on their potential impact. We investigated the effects of components of a recent national mass media campaign (Scotland, UK) designed to improve public awareness of drug related deaths, and readiness to intervene. METHODS: We undertook a cross-sectional online experimental study with a randomized design, conducted with a nationally representative sample. Participants (N = 1551; 52.6% female; age 46.1±16.5 years) were assessed on overdose knowledge and readiness to intervene after presentation of eight combinations of campaign components. RESULTS: Compared to a basic campaign description, exposure to all types of campaign component were associated with higher overdose knowledge (p < .001), but not knowledge of what to do in response to an overdose (p = .374), or readiness to intervene (p= .286). The greatest effects were associated with a media rich audio-visual resource (animated video with a popular song on the soundtrack, and narrated by a well-known actor). CONCLUSION: Our data suggest that harm reduction is an appropriate topic for large-scale mass media campaigns. However, effects may be limited to knowledge and awareness raising in the general public, and may be related to the types of media used. Audience segmentation is important and more general messaging about drug related deaths may be more appropriate for the majority of audiences.

3.
Int J Drug Policy ; 101: 103547, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34906847

RESUMO

BACKGROUND: Alcohol marketing helps shape how gender roles and relations are understood, and the gendered nature of drinking learned. In recent years, changes in how women are presented and addressed in marketing, including alcohol marketing, have been observed. This reflects the shifting social, political and regulatory context, in which increased attention has been given to gender inequality and the damaging impact of gender stereotypes. Research is yet to explore the gendered nature of alcohol marketing within this contemporary context. METHODS: A quantitative content and qualitative thematic analysis of alcohol marketing posts (N = 2600) by 20 alcohol brands on Facebook and Instagram pages over an 18 month period (1st January 2019-30th June 2020) was conducted. Marketing strategies were identified, and the way in which posts targeted, represented and engaged women analysed. FINDINGS: New (e.g. 'influencer' collaborations) and established (e.g. competitions) strategies were being used to target both women and men. Drinking was presented as a feminine practice and as an important component of 'doing' a combination of traditional, post-feminist and feminist femininities. Women were assigned a range of gender roles that acknowledged their individual pleasures and achievements, and traditional gender roles and stereotypes were both reinforced and rejected to promote alcohol use. An important move away from sexualising and demeaning women to the appropriation of feminist and equality messages was observed, which may appeal to a wider range of women, including those embracing feminist identities. CONCLUSION: Alcohol brand marketing encourages alcohol use to women through both perpetuating and challenging gender stereotypes. Claims by brands of a commitment to equality are at odds with the harms related to alcohol consumption that contribute to the widening of health and social inequalities. It is important that future work on women's drinking and alcohol marketing is situated within the shifting social-political climate in which traditional, post-feminist and new fourth wave feminist rhetoric and femininities co-exist.


Assuntos
Mídias Sociais , Feminino , Humanos , Masculino , Marketing , Fatores Socioeconômicos
4.
Int J Drug Policy ; 95: 103141, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-33549466

RESUMO

BACKGROUND: Healthcare professionals (HCPs) provide an important point of contact through which people who use performance and image enhancing drugs (PIEDs) could access reliable information, advice, and interventions on a range of PIEDs, their use and related harms. However, HCPs often report difficulties engaging and building rapport with people who use PIEDs, and research suggests that they often lack specialist knowledge on these substances. Providing credible evidence-based resources to support HCPs is thus important. However, educational materials in this area are generally absent and the ones that exist have not been assessed for their utility in the HCP workforce. This paper examines the acceptability and usability of a PIED e-learning module (the Dopinglinkki e-module) targeted at HCPs in three EU Member States and Australia. METHODS: A standardised two stage, mixed methodology was implemented. Stage 1 involved HCPs completing the e-module and completing an online survey (N = 77). Stage 2 involved conducting individual structured interviews with a subset of survey respondents (N = 37). Normalisation Process Theory and the Theoretical Framework of Acceptability were used as conceptual lenses. FINDINGS: The e-module provided information that was perceived as useful for HCPs' current and future practice. However, several individual, organisational and societal level barriers were reported as preventing the e-module becoming an accepted and normalised aspect of the HCP workforce, including the need for up to date evidence, the time-consuming nature of completing the e-module, lack of organisational support, the use of over-complex language, and the module's potential to reinforce the stigmatisation of PIEDs. CONCLUSION: Providing credible evidence-based resources to support HCPs' knowledge development is important. Evidence-based and theory informed interventions are needed to equip HCPs with knowledge that can aid culturally sensitive interactions and effective engagement with people who use PIEDs. Reflecting on our study findings, it is important that the development of interventions should include the voices of both HCP and those using PIEDs, and that careful consideration is given to the various factors that may act as a barrier to effective implementation.


Assuntos
Pessoal de Saúde , Preparações Farmacêuticas , Austrália , Atenção à Saúde , Europa (Continente) , Humanos , Recursos Humanos
5.
J Public Health (Oxf) ; 42(3): e259-e267, 2020 08 18.
Artigo em Inglês | MEDLINE | ID: mdl-32812046

RESUMO

BACKGROUND: The United Kingdom (UK) has seen a decrease in the number of young people drinking alcohol. However, the UK prevalence of underage drinking still ranks amongst the highest in Western Europe. Whilst there is a wealth of evidence reporting on the effectiveness of both primary, and secondary interventions, there are few reports of the experiences of young people who receive them. METHODS: The present study reports findings from interviews with 33 young people who were involved in an alcohol screening and brief intervention randomized controlled trial in schools in England. All interviews were analysed using inductive applied thematic analysis. RESULTS: Three major themes were identified following the analysis process: 1) drinking identities and awareness of risk; 2) access to support and advice in relation to alcohol use; and 3) appraisal of the intervention and potential impact on alcohol use. CONCLUSIONS: There appeared to be a reluctance from participants to describe themselves as someone who drinks alcohol. Furthermore, those who did drink alcohol often did so with parental permission. There was variation amongst participants as to how comfortable they felt talking about alcohol issues with school staff. Overall participants felt the intervention was useful, but would be better suited to 'heavier' drinkers.


Assuntos
Consumo de Bebidas Alcoólicas , Intervenção em Crise , Adolescente , Consumo de Bebidas Alcoólicas/epidemiologia , Inglaterra , Europa (Continente) , Humanos , Instituições Acadêmicas , Reino Unido
6.
Int J Drug Policy ; 83: 102855, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32693322

RESUMO

BACKGROUND: There is evidence to suggest that medically supervised drug consumption rooms (DCRs) may form part of responses to reduce drug-related harm. Although DCRs have been established globally, they are perceived by some to be a controversial approach in the UK, and Government has repeatedly rejected proposals to establish one in Glasgow, Scotland. As public support is an important component of policy development and enactment, we sought to investigate the effects of different types of message framing on public support for DCR. METHODS: We undertook a cross-sectional online study with a randomised design, conducted with a nationally representative sample. Participants were randomised to one of six message conditions comprising combinations of four components. All conditions included i) a basic description of a DCR, and conditions included combinations of ii) factual information; iii) pre-emptive refutation of common public concerns about DCR; and/or iv) a sympathetic narrative describing a mother whose son died from a heroin overdose. After reading each message, participants completed a bespoke measure assessing support for DCR. Data were analysed using ANCOVA. RESULTS: Complete data were obtained from 1591 participants (50.3% Female; mean age 44.9 ± 16.1 years). Compared to reading a basic description of DCR alone, there was greater support for DCR in participants receiving the refutation (p < .001); sympathetic + factual (p < .05); and sympathetic + factual + refutation (p < .001) message conditions. Presenting factual or sympathetic messages alone were not associated with increased support. CONCLUSION: Our findings suggest that public support for DCRs is not improved through communication of factual statements outlining potential benefits of the intervention alone. Advocates seeking to foster public support, and thus influence policy making, should also consider communication campaigns that address common concerns that the public might have about DCRs, and present the intervention in relation to potential benefits that they hold for people indirectly affected by drug-related harm.


Assuntos
Preparações Farmacêuticas , Transtornos Relacionados ao Uso de Substâncias , Adulto , Estudos Transversais , Feminino , Redução do Dano , Humanos , Masculino , Pessoa de Meia-Idade , Escócia , Reino Unido
7.
Int J Drug Policy ; 68: 62-74, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-31003193

RESUMO

BACKGROUND: Drug consumptions rooms (DCRs) are a well-established and evidence-based harm reduction response to drug use. Recently, a consortium led by health services in Glasgow, United Kingdom (UK), proposed piloting a DCR. In this article, we examine how the proposals were represented in news media reporting, and the possible effects of such reporting. METHODS: A quantitative content and qualitative thematic analysis of UK news media (n = 174 articles) representations of the proposals to introduce DCRs in the city of Glasgow, UK, was conducted. Analysis was informed by Bacchi's (2009, 2012, 2017) approach to policy analysis, 'What's the problem represented to be?' FINDINGS: Competing representations of the 'problem' of injecting drug use (IDU) were contested by a range of actors with different political visions. The applicability of the 'evidence base', potential benefits of DCRs to both users and the public, and the associated economic costs, were presented in differing ways depending on the underlying assumptions and presumptions of the arguments constructed (e.g. harm reduction vs recovery). As a result, a number of conflicting subject positions were presented that may have implications for the way that people who inject drugs (PWID) see themselves, and how they are viewed and treated by society. Whilst proponents positioned DCRs within a discourse of public health, an underlying rhetoric of abstinence and recovery underpinned the arguments against DCRs. It was this latter discourse that underpinned the UK Government's rejection of the proposals, which the Scottish Government were prevented from overruling within the political constraints of their devolved powers, with the lived effect of people who use drugs (PWUD) being denied access to public health services that mitigate harm. CONCLUSION: We conclude that attempts to introduce and gain public and political support for harm reduction responses such as DCRs through the news media face challenges within the historical and political context of prohibitionist UK drugs policy.


Assuntos
Redução do Dano , Meios de Comunicação de Massa , Formulação de Políticas , Gestão da Segurança/métodos , Transtornos Relacionados ao Uso de Substâncias/prevenção & controle , Humanos , Reino Unido
8.
J Public Health (Oxf) ; 41(4): 821-829, 2019 12 20.
Artigo em Inglês | MEDLINE | ID: mdl-30371806

RESUMO

BACKGROUND: Whilst underage drinking in the UK has been declining in recent years, prevalence is still higher than in most other Western European countries. Therefore, it is important to deliver effective interventions to reduce risk of harm. METHODS: Semi-structured interviews with staff delivering an alcohol screening and brief intervention in the high-school setting. The analysis was informed by normalization process theory (NPT), interviews were open coded and then a framework applied based on the four components of NPT. RESULTS: Five major themes emerged from the analysis. The majority of participants felt that the intervention could be useful, and that learning mentors were ideally suited to deliver it. However, there was a feeling that the intervention should have been targeted at young people who drink the most. CONCLUSIONS: The intervention was generally well received in schools and seen as an effective tool for engaging young people in a discussion around alcohol. However, in the future schools need to consider the level of staffing in place to deliver the intervention. Furthermore, the intervention could focus more on the long-term risks of initiating alcohol consumption at a young age.


Assuntos
Serviços de Saúde Escolar , Consumo de Álcool por Menores/prevenção & controle , Adolescente , Feminino , Humanos , Entrevistas como Assunto , Masculino , Avaliação de Programas e Projetos de Saúde , Professores Escolares , Instituições Acadêmicas , Reino Unido
9.
Drug Test Anal ; 3(7-8): 515-23, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21744515

RESUMO

New psychoactive substances pose a particular challenge to those formulating drugs policy and related public health responses. This paper outlines some of the main issues arising from their use, with a particular focus on user perspectives. Such substances are often (at least initially) produced and distributed for different reasons than controlled drugs. They emerge in users' repertoires undetected by most monitoring systems and general population drug surveys. While reasons for use by innovators and early adopters are often in the spirit of self-experimentation, such substances may rapidly diffuse to the recreational arena as a result of enthusiastic user propagation where they act as substitutes or complements to controlled drugs. The majority of substances are believed to be sourced, albeit not exclusively, from manufacturers based in China. They are retailed to consumers through the Internet and physical shops (such as 'head' and 'smart' shops), as well as traditional 'street dealers' (although data on the significance of this latter route of supply are limited). The data required for risk assessment of the harms such substances may pose, as well as information required for accurate user-derived harm reduction advice, are often limited. Moreover, some involved in the commercial supply have deliberately misbranded products, including substituting the active substance, in apparent attempts to circumvent regulatory frameworks. This leaves users susceptible to both health and criminal justice harms. Despite various attempts to restrict the supply, they often continue to be available through the illicit market, although it is not yet possible to predict whether they will join other drugs such as MDMA and LSD as mainstays of the recreational pharmacopeia.


Assuntos
Autoexperimentação , Controle de Medicamentos e Entorpecentes , Psicotrópicos/uso terapêutico , Controle de Medicamentos e Entorpecentes/tendências , Humanos , Saúde Pública/tendências , Política Pública/tendências
10.
J Psychopharmacol ; 25(11): 1496-507, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-20937616

RESUMO

Salvia divinorum is a hallucinogenic plant with ethnopharmacological and recreational uses. It differs from classic serotonergic hallucinogens such as LSD and psilocin in both phenomenology and potent agonist activity of the active component salvinorin A at κ-opioid receptors. Awareness of S. divinorum has grown recently, with both an increase in its public representation and concern over its potential harmful effects. This discussion is particularly relevant as S. divinorum is legal to use in many countries and regions and easily available through online retailers. Drawing upon previous investigations of S. divinorum and other hallucinogens, this study surveyed 154 recent users and questioned them on their use behaviours, consequences of use and other attitudinal measures. Although reporting an extensive substance use history, and considering the limitations of online surveys, there was little evidence of dysfunctional S. divinorum use, and few reports of troubling adverse consequences of use. Furthermore, there was no evidence that users exhibited increased schizotypy. Respondents reported that S. divinorum produced mixed hallucinogenic and dissociative effects, which lends support to assertions that it phenomenologically differs from other hallucinogens with primary serotonergic activity. The functions of use changed with greater experiences with the drug, and although many respondents reported use of S. divinorum as an alternative to illegal drugs it, was apparent that legal proscription would be unlikely to dissuade them from use. These results are discussed with reference to psychopharmacologically informed public health responses to substance use.


Assuntos
Diterpenos Clerodânicos/efeitos adversos , Medicamentos de Ervas Chinesas/efeitos adversos , Alucinógenos/efeitos adversos , Drogas Ilícitas/efeitos adversos , Salvia/química , Canfanos , Coleta de Dados/métodos , Diterpenos Clerodânicos/administração & dosagem , Medicamentos de Ervas Chinesas/administração & dosagem , Feminino , Alucinógenos/administração & dosagem , Humanos , Internet , Masculino , Panax notoginseng , Saúde Pública , Receptores Opioides kappa/efeitos dos fármacos , Salvia miltiorrhiza , Adulto Jovem
11.
J Psychopharmacol ; 21(5): 525-37, 2007 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-17446200

RESUMO

Despite long-standing concern over the sexual health of the population there has been little work undertaken in the UK investigating sexual risk taking and sexual behaviours in the context of substance use. To investigate this further, 270 non-drug treatment seeking members of the public aged between 18 and 66 were administered a questionnaire containing the Alcohol Use Disorders Identification Test (AUDIT), the Drug Abuse Screening Test (DAST), the Severity of Dependence Scale (SDS), the Sexual Risks Scale and Attitudes toward condom use (SRSA), the Sexual Sensation Seeking Scale (SSSS); the Hospital Anxiety and Depression Scale (HADS), and questions pertaining to sexual episodes proximal to substance use. The population reported a varied history of substances and despite there not being self-awareness of problematic drug use, 39.4% reported above the cut-off mark of six on the DAST. An even greater percentage (57.8%) reported a score above eight on the AUDIT indicating hazardous or harmful drinking behaviour. The substance most often associated with sexual episodes was alcohol, followed by cannabis and ecstasy, and all were most frequently consumed in private houses. Sexual activity after drug use was most frequently circumstantial (i.e. the individual hadn't taken the substance for the specific purposes of sex), and was significantly associated with use of cannabis and ecstasy. The second most frequently reported association between drug use and sex was facilitation of a sexual encounter (i.e. to lower sexual inhibitions, increase self esteem and confidence), which was associated with use of alcohol, cannabis, cocaine and ecstasy. Although it was not possible to identify differences in subjective sexual changes after use of particular drugs, subjects reported that compared to sex after alcohol, sex on other drugs was more pleasurable and satisfying, with a greater perception of interpersonal contact with the partner and a greater willingness to sexually experiment. However, this latter change was not associated with changes in the type of sexual activity engaged in. Regression analysis revealed that the greatest subjective changes in sexual experiences were reported by younger participants who had ingested either ecstasy or cannabis prior to the sexual episode. These results are discussed in the context of sexual risk taking and suggest areas of intervention focus which may address substance use and sexual risk taking together.


Assuntos
Afeto , Intoxicação Alcoólica/psicologia , Comportamento Sexual , Transtornos Relacionados ao Uso de Substâncias/psicologia , Adulto , Idoso , Intoxicação Alcoólica/epidemiologia , Feminino , Indicadores Básicos de Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Psicometria , Assunção de Riscos , Comportamento Sexual/estatística & dados numéricos , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Inquéritos e Questionários , Reino Unido/epidemiologia , Sexo sem Proteção
12.
Addiction ; 101(10): 1413-20, 2006 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16968342

RESUMO

AIMS: Assessment of the sensitivity and specificity of two commercially available 'drug-facilitated sexual assault' drug detector kits, Drink Guard and Drink Detective. DESIGN: Experimental. SETTING: Laboratory. MEASUREMENTS: Gamma hydroxybutyrate (GHB) sodium salt, ketamine hydrochloride, temazepam, flunitrazepam and diazepam were dissolved (Tween added to benzodiazepine solutions) as separate stock solutions and added to 330 ml samples of cola (Pepsi Max), beer (Stella Artois), 'alcopop' (Bacardi Breezer) and placebo (distilled water). The doses used are reported to be common in cases of intoxication. Each kit was tested 10 times for each drink/drug combination. Two blind, independent observers scored each test (presence/absence of drug) in accordance with kit instructions; chi 2 was used to compare the proportion of times raters scored tests correctly and incorrectly. Sensitivity and specificity were calculated overall, for each drink, and sensitivity was calculated for each drug. Inter-observer agreement was evaluated using the kappa statistic. FINDINGS: While both raters were able to score significantly more tests correctly than incorrectly using Drink Detective, and one rater scored similarly using Drink Guard, the overall sensitivity of Drink Detective and Drink Guard was 69.0% (95% CI 64.2-73.5%) and 37.5% (95% CI 30.1-45.5%), respectively. Sensitivity was drink-dependent. Drink Detective was unable to detect our dose of GHB in water, with all tests scored negatively by both raters for this drink/drug combination (n = 20 negative scores). Overall, specificity was 76.6% (95% CI 71.5-81.0%) and 87.9% (95% CI 83.0-91.6%) for Drink Guard and Drink Detective, respectively, but was affected by the beverage. Inter-rater agreement was poor for Drink Guard (kappa = 0.278 +/- 0.069) but excellent for Drink Detective (kappa = 0.894 +/- 0.245). Inter-observer agreement was drug-dependent. CONCLUSIONS: Use of drug detector kits by the public in the night-time environment needs further investigation and may create a false sense of security (false negatives) and undue concern (false positives) among kit users.


Assuntos
Benzodiazepinas/análise , Bebidas/análise , Drogas Ilícitas/química , Delitos Sexuais/prevenção & controle , Detecção do Abuso de Substâncias/métodos , Humanos , Variações Dependentes do Observador , Estupro , Kit de Reagentes para Diagnóstico , Reprodutibilidade dos Testes , Segurança , Sensibilidade e Especificidade , Detecção do Abuso de Substâncias/normas
13.
J Psychopharmacol ; 20(4): 518-25, 2006 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-16174670

RESUMO

Stereotype threat occurs when individuals, believed to be intellectually inferior, perform badly on cognitive tests they perceive to confirm stereotypes about them. Due to the wide media coverage of studies purporting to show cognitive deficits in ecstasy users it is possible that they experience stereotype threat. This study tested ecstasy and non-ecstasy using polysubstance misusers on a variety of cognitive tests after they had been exposed to stereotype threat. This priming consisted of exposing them to information about the long-term effects of ecstasy which either stated that ecstasy caused memory loss or that it did not. Ecstasy users that had been primed that ecstasy did not cause cognitive deficits performed better than the other three groups on the delayed portion of the prose recall task from the Rivermead Behavioural Memory Test battery. There were no other statistically significant differences between any of the groups on any of the other cognitive tests used. This suggests that stereotype threat exists in ecstasy users and may be influencing their performance in experiments designed to identify cognitive deficits. In order to prevent this occurring in future studies, experimenters must be careful how they conduct their experiments and discuss their results with the media.


Assuntos
Cognição/efeitos dos fármacos , Alucinógenos/efeitos adversos , N-Metil-3,4-Metilenodioxianfetamina/efeitos adversos , Comportamento Estereotipado/efeitos dos fármacos , Transtornos Relacionados ao Uso de Substâncias/psicologia , Adolescente , Adulto , Dano Encefálico Crônico/induzido quimicamente , Dano Encefálico Crônico/psicologia , Sinais (Psicologia) , Feminino , Humanos , Modelos Logísticos , Masculino , Memória/efeitos dos fármacos , Memória de Curto Prazo/efeitos dos fármacos , Desempenho Psicomotor/efeitos dos fármacos , Inquéritos e Questionários
14.
J Psychopharmacol ; 19(1): 67-70, 2005 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-15671131

RESUMO

Adverse reactions to polysubstance misuse are common in nightclubs, yet little is known of the physiological effects of polysubstance misuse in this environment. This study examined the heart rate, blood pressure and oral temperature of 50 participants recruited in a nightclub on four separate nights. In addition, the increase in environmental temperature was recorded throughout each night. There were no differences in oral temperature between polysubstance misusers (i.e. those who used Ecstasy, amphetamine, cocaine, alcohol and cannabis) and alcohol/cannabis misusers. On the other hand, there were significant differences in both heart rate and blood pressure between the two groups. These data suggest that polysubstance misusers may be at risk from cardio- and cerebrovascular toxicity. Further field/on-site work is clearly needed to investigate the effects of polysubstance misuse.


Assuntos
Doenças Cardiovasculares/induzido quimicamente , Estilo de Vida , Transtornos Relacionados ao Uso de Substâncias/complicações , Adolescente , Adulto , Doenças Cardiovasculares/fisiopatologia , Estimulantes do Sistema Nervoso Central/efeitos adversos , Feminino , Hemodinâmica/efeitos dos fármacos , Hemodinâmica/fisiologia , Humanos , Masculino , Abuso de Maconha , Saliva/química , Transtornos Relacionados ao Uso de Substâncias/fisiopatologia
15.
Pharmacol Biochem Behav ; 77(4): 805-14, 2004 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-15099927

RESUMO

Few preclinical studies have found long-term behavioural consequences of the serotonergic neurotoxicity produced by 3,4-methylenedioxymethamphetamine (MDMA). This study investigated whether pretreatment with MDMA altered the behavioural effects of other drugs of abuse. Adult male Lister hooded rats (n=10/group) were pretreated with 10 mg/kg MDMA or 1 ml/kg saline vehicle intraperitoneally every 2 h for 6 h. Fourteen days later, the behavioural effects of d-amphetamine (2 mg/kg), cocaine (10 mg/kg), ethanol (2.0 g/kg), heroin (0.5 mg/kg), or MDMA (10 mg/kg) were assessed in the elevated plus-maze test. MDMA pretreatment produced approximately 20-25% decrease in hippocampal 5-HT and 5-HIAA concentrations, and [(3)H]paroxetine binding when analysed 2 weeks later. Despite inducing neurotoxicity, this regimen had no effect upon the plus-maze behaviour induced by ethanol, heroin, and MDMA. Acutely, and independent of neurotoxic pretreatment, MDMA produced a clear anxiogenic-like behavioural profile with a reduction of open arm entries and suppression of explorative behaviours. Despite being acutely anxiogenic, pretreatment with a neurotoxic regimen of MDMA has little effect on the anxiety-related effects of other drugs of abuse. It is possible that extended time points would produce significant changes, although the available evidence suggests that the plus-maze may not be a suitable model for detection of behavioural dysfunction after neurotoxic MDMA.


Assuntos
Drogas Ilícitas/farmacologia , Aprendizagem em Labirinto/efeitos dos fármacos , N-Metil-3,4-Metilenodioxianfetamina/administração & dosagem , Animais , Ansiedade/metabolismo , Interações Medicamentosas , Hipocampo/efeitos dos fármacos , Hipocampo/metabolismo , Drogas Ilícitas/metabolismo , Masculino , Aprendizagem em Labirinto/fisiologia , N-Metil-3,4-Metilenodioxianfetamina/metabolismo , Paroxetina/metabolismo , Ligação Proteica/fisiologia , Ratos
17.
Pharmacol Ther ; 98(1): 35-58, 2003 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-12667887

RESUMO

Ecstasy is the second most widely abused illegal drug in Europe. Ecstasy is the colloquial name for 3,4-methylenedioxymethamphetamine (MDMA), but not all Ecstasy tablets contain MDMA. When taken in hot, crowded environments, Ecstasy/MDMA users have developed acute complications that have had fatal consequences. Epidemiological evidence indicates that adverse reactions to Ecstasy/MDMA intoxication are rare and idiosyncratic. Potential mechanisms of action are reviewed. In animal studies, MDMA damages serotonergic fibres and reduces the number of serotonin transporter sites within the CNS. Demonstration of neurotoxicity in human users of Ecstasy is hampered by a number of confounds that the majority of published studies have failed to address. These confounds are reviewed and their impact is discussed.


Assuntos
3,4-Metilenodioxianfetamina/análogos & derivados , Alucinógenos/farmacologia , N-Metil-3,4-Metilenodioxianfetamina/farmacologia , Transtornos Relacionados ao Uso de Substâncias , 3,4-Metilenodioxianfetamina/efeitos adversos , 3,4-Metilenodioxianfetamina/farmacologia , 3,4-Metilenodioxianfetamina/intoxicação , Encéfalo/efeitos dos fármacos , Encéfalo/fisiologia , Ensaios Clínicos como Assunto/métodos , Transtornos Cognitivos/induzido quimicamente , Transtornos Cognitivos/psicologia , Alucinógenos/efeitos adversos , Alucinógenos/intoxicação , Humanos , N-Metil-3,4-Metilenodioxianfetamina/efeitos adversos , N-Metil-3,4-Metilenodioxianfetamina/intoxicação , Transtornos Relacionados ao Uso de Substâncias/mortalidade
18.
Psychopharmacology (Berl) ; 166(4): 383-90, 2003 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-12601504

RESUMO

RATIONALE: MDMA is a serotonergic neurotoxin but few pre-clinical studies have found long-term behavioural consequences. As human users of MDMA are polydrug users, it is important to investigate whether the behavioural effects of other drugs are modulated by prior exposure to MDMA. OBJECTIVE: . This study investigated whether pretreatment with a multiple high dose regimen of MDMA altered the rewarding effects of other drugs of abuse. METHODS: Adult male Lister Hooded rats ( n=10/group) were pretreated with 10 mg/kg MDMA or 1 ml/kg saline vehicle IP every 2 h for 6 h. Fourteen days later, conditioned place preference (CPP) to d-amphetamine (3 mg/kg), cocaine (20 mg/kg), ethanol (2.0 g/kg), heroin (0.5 mg/kg), or MDMA (10 mg/kg) was assessed. RESULTS: In general, MDMA pretreatment had no effect on drug reward or habituation to the place conditioning apparatus. However, in contrast to saline pretreated rats, those animals receiving MDMA failed to show CPP after ethanol. CONCLUSION: MDMA pretreatment reduced the rewarding properties of ethanol. This finding may represent a functional consequence of MDMA-induced neurotoxicity. By extrapolation, human users of MDMA may be exposed to an increase in risks associated with alcohol abuse.


Assuntos
Anfetamina/farmacologia , Comportamento Animal/efeitos dos fármacos , Encéfalo/efeitos dos fármacos , Cocaína/farmacologia , Etanol/farmacologia , Alucinógenos/farmacologia , Heroína/farmacologia , N-Metil-3,4-Metilenodioxianfetamina/farmacologia , Análise de Variância , Animais , Condicionamento Psicológico/efeitos dos fármacos , Interações Medicamentosas , Humanos , Masculino , Ratos , Recompensa
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...