886 resultados para Bioactive substance


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A publication of the IDPH Division of Behavioral Health to find out what's happening with Substance Abuse Prevention and Treatment.

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A publication of the IDPH Division of Behavioral Health to find out what's happening with Substance Abuse Prevention and Treatment.

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A publication of the IDPH Division of Behavioral Health to find out what's happening with Substance Abuse Prevention and Treatment.

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BACKGROUND: We examined the associations between substance use (cigarette smoking, alcohol drinking, and cannabis use) and psychosocial characteristics at the individual and family levels among adolescents of the Seychelles, a rapidly developing small island state in the African region. METHODS: A school survey was conducted in a representative sample of 1432 students aged 11-17 years from all secondary schools. Data came from a self-administered anonymous questionnaire conducted along a standard methodology (Global School-based Health Survey, GSHS). Risk behaviors and psychosocial characteristics were dichotomized. Association analyses were adjusted for a possible classroom effect. RESULTS: The prevalence of cigarette smoking, alcohol drinking and cannabis use was higher in boys than in girls and increased with age. Age-adjusted and multivariate analyses showed that several individual level characteristics (e.g. suicidal ideation and truancy) and family level characteristics (e.g. poor parental monitoring) were associated with substance use among students. CONCLUSIONS: Our results suggest that health promotion programs should simultaneously address multiple risk behaviors and take into account a wide range of psychosocial characteristics of the students at the individual and family levels.

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A publication of the IDPH Division of Behavioral Health to find out what's happening with Substance Abuse Prevention and Treatment.

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A publication of the IDPH Division of Behavioral Health to find out what's happening with Substance Abuse Prevention and Treatment.

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A publication of the IDPH Division of Behavioral Health to find out what's happening with Substance Abuse Prevention and Treatment.

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A publication of the IDPH Division of Behavioral Health to find out what's happening with Substance Abuse Prevention and Treatment.

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Cet article aborde l'entretien motivationnel (EM), considéré comme un style thérapeutique centré sur le client et directif, visant à développer la motivation au changement par l'exploration et la résolution de l'ambivalence (Miller, W.R., Rollnick, S., 2002. Motivational interviewing: preparing people for change. The Guilford Press, New York, p. 25). Après une brève présentation théorique de ce style thérapeutique, nous présentons un survol des principaux résultats empiriques relatifs à la question de son efficacité dans la prise en charge des troubles liés à l'utilisation de substances psychoactives. Malgré un corpus important de travaux qui mettent en évidence les effets de l'EM, la question des « ingrédients actifs » reste encore relativement peu explorée. Quelques hypothèses permettant de mieux comprendre le succès de l'EM sont évoquées.

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Objective: To examine whether the level of parental monitoring is associated with substance use among Swiss adolescents, and to assess whether this effect remains when these adolescents have consuming peers. Methods: Nationally representative sample from the Swiss participation in the 2007 European School Project on Alcohol and Other Drugs (ESPAD) survey, which included 7611 adolescents issued from public schools (8th-10th grades). Four levels of parental control were created and four substances (tobacco, alcohol, cannabis and ecstasy) were analyzed. All significant variables at the bivariate level were included in the multivariate analysis. Results: Most adolescents had a high level of parental monitoring and that was associated with younger age, being female, high socioeconomic status, intact family structure and a satisfactory relationship with mother, father and peers. Globally, substance use decreased as parental monitoring increased and high parental monitoring decreased having consuming peers. Results remained essentially the same when consuming peers were added in the analysis. Conclusions: Parental monitoring has positive effects on adolescent substance use with a reduction of consumption and a lower association with consuming peers, which seems to protect adolescents against their potential negative influence. Encouraging parents to monitor their adolescents' activities and friendships by establishing rules about what is allowed or not are simple ways to limit the negative influence of consuming peers on adolescent substance use.

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Substance P (SP), an undecapeptide belonging to the tachykinin family, is released during the activation of sensory nerves, and causes vasodilation, edema and pain through activation of tissular Neurokinin 1 receptors. SP proinflammatory effects are terminated by angiotensin converting enzyme (ACE) and neutral endopeptidase (NEP), while the aminopeptidase dipeptidylpeptidase IV (DPPIV) can also play a role. The aim of this randomized, crossover, double-blind study was to assess the cutaneous vasoreactivity (flare and wheal reaction, burning pain sensation) to intradermal injection of ascending doses of SP in six volunteers receiving a single therapeutic dose of the DPPIV inhibitor sitagliptin or a matching placebo. Cutaneous SP challenges produced the expected, dose-dependent flare and wheal response, while eliciting mild to moderate local pain sensation with little dose dependency. However, no differences were shown in the responses observed under sitagliptin compared with placebo, while the study would have been sufficiently powered to detect a clinically relevant increase in sensitivity to SP. The results of this pilot study are in line with proteolytic cleavage of SP by ACE and NEP compensating the blockade of DPPIV to prevent an augmentation of its proinflammatory action.

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A publication of the IDPH Division of Behavioral Health to find out what's happening with Substance Abuse Prevention and Treatment.

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A publication of the IDPH Division of Behavioral Health to find out what's happening with Substance Abuse Prevention and Treatment.

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A publication of the IDPH Division of Behavioral Health to find out what's happening with Substance Abuse Prevention and Treatment.