Ferulic acid (FERH) is known to exert leishmanicidal action against Leishmania (Leishmania) amazonensis. In this study, the ferulate anion (FER–) was intercalated into a layered double hydroxide (LDH) for FER– delivery during an antileishmania in vitro test. The LDH-FER– intercalation compound was prepared by coprecipitation and was characterized by X-ray powder diffraction, thermogravimetry, UV-Vis, infrared, and Raman spectroscopy analyses. Leishmania (L.) amazonensisin vitro assays were conducted to assess the LDH-FER– potential. LDH-FER– was found to promote a dose-dependent reduction of L. (L.) amazonensis amastigotes (intracellular form, half maximal inhibitory concentration (IC50) = 1.78 µg mL-1) without exerting a deleterious effect on the host macrophages (medium cytotoxic concentration (CC50) = 212.61 µg mL-1 and selectivity index = 119.4). LDH-FER– was found to be an effective inhibitor of the amastigote form of L. (L.) amazonensis, suggesting that LDH-FER– was able to deliver FER– inside the parasitophorous vacuoles where the pH is more acidic.

Abstract Background: Crack use has become a severe health problem in Brazil. Contingency management has shown robust evidence of efficacy in the treatment of cocaine use disorder (CUD) in high-income countries; however, it is still unclear how this intervention can impact treatment in low-income countries. Objective: To evaluate the efficacy of contingency management in the treatment of CUD among individuals with a previous history of poor treatment response in Brazil. Methods: Six months after the end of treatment, 32 participants previously allocated to the usual care condition (UCC) were invited to receive an additional 12 weeks of treatment in a contingency management condition (CMC), and 16 accepted the invitation. We compared data obtained from only the 16 participants (14 male) exposed to both treatment conditions. Results: Participants attended more treatment sessions and were retained in treatment for a longer period during the CMC than during the UCC (p < .01 for both). The proportion of negative cocaine samples submitted, the mean longest duration of cocaine abstinence, and the odds of being abstinent from cocaine during the 12 weeks of treatment were significantly higher during treatment in the CMC when compared to the UCC (p < .05). Conclusions: This study provides further evidence that contingency management is effective in promoting abstinence and retention in treatment among individuals with CUD with a history of poor treatment response. Our findings argue for the incorporation of CM among public treatment services for CUD in Brazil. Trial registration: This study was registered at ClinicalTrials.gov as NCT01815645 on March 21, 2013.

Resumo Introdução: O Programa Moradia Monitorada (MM) foi iniciado em São Paulo com o objetivo de prover tratamento para transotrnos de uso de substâncias e problemas relacionados a moradia e emprego. O objetivo do presente estudo foi descrever o modelo com base nos primeiros 11 meses de operação (o programa foi lançado em junho de 2016 no Brasil). Métodos: Realizamos um estudo retrospectivo utilizando os registros de todos os indivíduos tratados no MM do Programa Recomeço desde a sua criação. Resultados: Sessenta e nove indivíduos foram incluídos. Trinta e cinco (51%) permaneceram no tratamento até o fim ou foram reinseridos socialmente com sucesso. Trinta e quatro sujeitos (49%) apresentaram recidiva durante a permanência. Destes, 16 (47%) se voluntariaram para tratamento em comunidades terapêuticas ou hospitais psiquiátricos, 8 (23,5%) escolheram permanecer apenas no tratamento ambulatorial, 6 (17.7%) retornaram para suas famílias e continuaram o tratamento em uma unidade ambulatorial próxima ao domicílio, e 4 (11.8%) descontinuaram o tratamento. Dos 35 pacientes que completaram o tratamento, 28 (80%) estavam empregados em serviço regular e 7 (20%) recebiam aposentadoria por questões clínicas e/ou psiquiátricas. Conclusão: O modelo MM pode ser um componente importante na via de cuidados integrados e é utilizado em vários países. Apesar de controverso, o uso de análise de urina para vigilância da recidiva e da recorrência parece ter um impacto positivo na adesão ao tratamento e na manutenção da abstinência. Nossos achados preliminares corroboram, com claras limitações, os resultados reportados previamente na literatura, de que os programas de MM são efetivos no tratamento da dependência química.

Abstract Introduction: The recovery housing (RH) program was initiated in São Paulo with the objective of providing treatment for substance use disorders and addressing users’ housing and employment problems. The purpose of this study was to describe the model based on its first 11 months of operation, it was launched in June 2016 in Brazil. Method: We carried out a retrospective analysis of the records of all subjects treated in the RH of the Restart Program (Programa Recomeço) since its creation, from June 2016 to May 2017. Results: Sixty-nine subjects were included. Thirty-five (51%) remained in the household until the end of treatment or were reinserted in society. Thirty-four (49%) presented recurrence during their stay, of which 16 (47%) volunteered for treatment in a therapeutic community or psychiatric hospital, 8 (23.5%) chose to continue with outpatient treatment only, 6 (17.7%) returned to their families and continued to receive outpatient treatment, and 4 (11.8%) discontinued the treatment. Of the 35 subjects who completed the RH program, 28 (80%) were in employment and 7 (20%) received governmental support for permanent disability on medical or psychiatric grounds. Conclusion: RH can be an important component of integrated care and is used in several countries. Although controversial, the use of urine tests to control relapse seems to have a positive impact on adherence to treatment and maintenance of abstinence. These preliminary findings corroborate, with clear limitations, the evidence available in the literature showing that RH programs are effective for the treatment of addictions.

RESUMO Objetivo Avaliar a atitude frente ao paciente alcoolista e o conhecimento sobre uso do álcool do estudante de Medicina em função do seu padrão de beber. Métodos Estudo transversal realizado com estudantes matriculados no terceiro, sexto e décimo primeiro período dos cursos de Medicina de três universidades federais da Região Sudeste do Brasil (UFF, UFJF e Unifesp). Foram coletados dados sociodemográficos e aplicadas escalas de avaliação da atitude médica diante do paciente alcoolista. Os dados foram complementados por uma avaliação do conteúdo científico sobre alcoolismo e pelo Audit para avaliar o padrão de ingestão de álcool dos alunos. Resultados Participaram do estudo 371 estudantes. Os consumidores de bebidas alcoólicas no padrão binge representaram 60,4% (n = 223), e 113 estudantes (30,7%) apresentaram comportamento de risco para o consumo de álcool (Audit ≥ 8). O padrão de consumo alcoólico não diferiu entre as universidades e nem entre os períodos avaliados (Kruskal Wallis, p > 0,05). Os alunos das três universidades aumentaram a pontuação na escala de conhecimentos com o progredir do curso. Entretanto, não houve correlação significativa entre conhecimento e padrão de beber (Spearman > 0,05). Quanto à atitude, foi observado que já é satisfatória no terceiro período e melhora no sexto período. Exceção foi observada entre os alunos da Unifesp, que já apresentaram atitude positiva quase máxima no terceiro período e que foi mantida até o final do curso. Conclusão Embora a atitude dos alunos melhore ao longo do curso, assim como seu conhecimento sobre adição a substâncias, o comportamento de beber permanece o mesmo, sem correlação com os conhecimentos transmitidos a respeito dos riscos de beber.

ABSTRACT Objective To evaluate the attitude toward the alcoholic patient and the knowledge about the use of alcohol by the medical student according to his drinking pattern. Method It was a cross-sectional study involving at random selected students enrolled on the third, sixth and eleventh semester in three federal universities of southeastern Brazil (UFF, UFJF and Unifesp). Method Sociodemographic data were collected and the following instruments were applied: attitude evaluation scale, knowledge of scientific information scale on alcohol and management of the alcoholic patient and Audit for evaluation of alcohol problems. Results The study included 371 students. Alcohol users in the binge pattern accounted for 60.4% (n = 223) and 113 students (30.7%) presented a risk behavior for alcohol consumption (Audit ≥ 8). The alcohol consumption pattern did not differ between the universities nor between the evaluated periods (Kruskal Wallis, p > 0.05). Students from the three universities increased the score on the knowledge scale as the course progressed. However, there was no significant correlation between knowledge and drinking pattern (Spearman > 0.05). As for the attitude, it was observed that it is already satisfactory in the third period and improvement in the sixth period. Exception was observed among the students of Unifesp, who already presented near positive attitude in the third period that was maintained until the end of the course. Conclusion Although the university increases knowledge of risk problems of drinking this does not protect students of binge drinking. On the other hand, student’s positive attitude towards alcoholic patients improves over the course, regardless of drinking and the acquired scientific knowledge.

Methanogenic archaeans are organisms of considerable ecological and biotechnological interest that produce methane through a restricted metabolic pathway, which culminates in the reaction catalyzed by the Methyl-coenzyme M reductase (Mcr) enzyme, and results in the release of methane. Using a metagenomic approach, the gene of the a subunit of mcr (mcrα) was isolated from sediment sample from an anoxic zone, rich in decomposing organic material, obtained from the Tucuruí hydroelectric dam reservoir in eastern Brazilian Amazonia. The partial nucleotide sequences obtained were 83 to 95% similar to those available in databases, indicating a low diversity of archaeans in the reservoir. Two orders were identified -the Methanomicrobiales, and a unique Operational Taxonomic Unit (OTU) forming a clade with the Methanosarcinales according to low bootstrap values. Homology modeling was used to determine the three-dimensional (3D) structures, for this the partial nucleotide sequence of the mcrα were isolated and translated on their partial amino acid sequences. The 3D structures of the archaean mcrα observed in the present study varied little, and presented approximately 70% identity in comparison with the mcrα of Methanopyrus klanderi. The results demonstrated that the community of methanogenic archaeans of the anoxic C1 region of the Tucurui reservoir is relatively homogeneous.

OBJETIVOS: identificar fatores envolvidos no comportamento de continuar fumando a despeito de estar grávida. MÉTODO: entrevistas padronizadas foram aplicadas a 486 mulheres grávidas nas clínicas de pré-natal de quatro centros de saúde na cidade do Rio de Janeiro, Brasil, no período de abril 2003 a fevereiro 2004. Todas as vezes que uma fumante era identificada, uma entrevista adicional foi aplicada, contendo a Escala de Edinburgh para Depressão, a escala de Fagerstron para dependência de nicotina e o Questionário de Avaliação de Doenças Mentais em adultos. RESULTADOS: a prevalência de tabagismo nos estágios iniciais da gravidez foi de 21,1%. A maioria das tabagistas apresentou baixo nível de dependência de nicotina. Trinta e seis por cento das mulheres avaliadas pararam de fumar no primeiro trimestre da gestação sem qualquer intervenção médica específica. As mesmas beberam menos durante a gestação e haviam tentado parar de fumar mais vezes anteriormente. CONCLUSÕES: os resultados sugerem uma motivação inespecífica para o bem estar do concepto que envolve as duas drogas lícitas. Aquelas que pararam, tentaram mais vezes anteriormente e também diminuíram o consumo de álcool na gestação atual.

OBJECTIVES: to identify factors involved in not stopping smoking in spite of being pregnant. METHODS: standardized interviews were applied to 486 pregnant women in the pre-natal clinics of four health centers in the city of Rio de Janeiro, Brazil, between April 2003 and February 2004. Every time a smoker was identified, an additional interview, which included the Edinburgh Postnatal Depression Scale, the Fagerströn scale for nicotine dependence, and the Screening Questionnaire for Adult Mental Disorders, was carried out. RESULTS: the prevalence of smoking, in the initial stages of pregnancy was 21.1%. Most smokers presented a low level of nicotine dependence. Thirty-six percent of them stopped smoking by the first trimester of the present pregnancy without any specific medical intervention. Important differences between those who were able to stop and those who were not were alcohol intake and number of previous attempts at abstinence. Women who stopped smoking drank less during gestation. CONCLUSIONS: stopping smoking during pregnancy seems to be linked to a non-specific drive towards the well-being of the fetus. The number of previous attempts at abstinence was positively related to stopping at the beginning of pregnancy. In spite of the prevalence of the problem, there is still inadequate support for smokers in the prenatal services.

Este artigo descreve o estado atual da Terapia Cognitiva, Comportamental, Prevenção de Recaída e Treinamento de Habilidades no tratamento de usuários de drogas. O objetivo é apresentar uma revisão sobre teorias e técnicas da Terapia Cognitiva e outras abordagens que dela derivam. Terapias Cognitiva e Comportamental, bem como Prevenção da Recaída e Treinamento de Habilidades, são tratamentos limitados no tempo, orientados em uma meta, e que utilizam sessões estruturadas, assumindo, assim, uma postura diretiva e ativa. Nós salientamos algumas diferenças entre Terapia Cognitiva, Prevenção de Recaída e Treinamento de Habilidades. A Terapia Cognitiva tem seu foco prioritariamente nos pensamentos, crenças, sentimentos e circunstâncias, como base do comportamento disfuncional. A Prevenção de Recaída e o Treinamento de Habilidades baseiam-se nas teorias comportamentais, além da teoria Cognitiva. Esperamos apresentar os últimos achados científicos para ajudar o psiquiatra geral a melhorar o tratamento da dependência química.

This article describes the current status of Cognitive and Behavioral Therapy as well Relapse Prevention and Coping Skill approaches applied in drug abuse treatments. The objective is show a review about theories and technique used by Cognitive Therapy and others approaches derived that, specifically Relapse Prevention and Coping Skill Treatments. Cognitive and Behavioral Therapy, Coping Skill, and Relapse Prevention are a short-time, goal-oriented and structured treatments. Thus, they assume a posture directive and active. We pointed out some difference between the theories about Cognitive Therapy, Relapse Prevention and Coping Skill. The Cognitive Therapy accentuated the focus in patient’s thought, feeling and circumstances that get in a dysfunctional behavioral. Relapse Prevention and Coping Skill are based in behavioral theories besides of the Cognitive. We, finally, look forward to introduce the lasted scientific finding to helpful the general psychiatric to improve the assistance in dug abuse treatment.