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1.
J Med Internet Res ; 19(10): e325, 2017 10 11.
Artigo em Inglês | MEDLINE | ID: mdl-29021126

RESUMO

BACKGROUND: Up to 18% of men experience depression and/or anxiety during the transition to parenthood. Interventions designed specifically to promote the mental health of men during the transition to parenthood are scarce. Internet-delivered interventions may be acceptable and far-reaching in enhancing mental health, parenting knowledge, and healthy behaviors in expectant or new fathers. OBJECTIVE: To guide the development of Healthydads.ca, a website designed to enhance mental health and healthy behaviors in expectant fathers, a needs assessment was conducted to identify fathers' perspectives of barriers to seeking help for emotional wellness, informational needs, and factors affecting the decision to visit such a website. METHODS: One hundred and seventy-four men whose partners were expecting, or had recently given birth, in 3 Canadian provinces (Quebec, Ontario, and Alberta) completed a Web-based survey inquiring about information needs related to psychosocial aspects of the transition to parenthood, lifestyle behaviors, parenting, and factors associated with the decision to visit a father-focused website. RESULTS: Most men (155/174, 89.1%) reported accessing the Internet to obtain information on pregnancy and spent an average of 6.2 hours online per month. Seeking information about parenting on the Internet was reported by 67.2% (117/174) of men, with a mean of 4.4 hours per month of online searching. Top barriers to seeking help to improve emotional wellness during the perinatal period were: no time to seek help/assistance (130/174, 74.7%), lack of resources available in the health care system (126/174, 72.4%), financial costs associated with services (118/174, 67.8%), and feeling that one should be able to do it alone (113/174, 64.9%). Information needs that were rated highly included: parenting/infant care (52.9-81.6%), supporting (121/174, 69.5%) and improving (124/174, 71.3%) relationship with their partner, work-family balance (120/174, 69.0%), improving sleep (100/174, 57.5%), and managing stress (98/174, 56.3%). Perceiving the website as personally relevant (151/174, 86.8%), credible (141/174, 81.0%), effective (140/145, 80.5%), and having an easy navigation structure (141/174, 81.0%) were identified as important factors related to a first website visit. Providing useful (134/174, 77.0%) and easy to understand (158/174, 90.8%) information, which was also free of charge (156/174, 89.7%), were considered important for deciding to prolong a website visit. Providing the possibility to post questions to a health professional (133/174, 76.4%), adding new content regularly (119/174, 68.4%), and personal motivation (111/174, 63.8%) were factors identified that would encourage a revisit. CONCLUSIONS: Our findings demonstrate that there is substantial interest among expectant and new fathers for using Internet-delivered strategies to prepare for the transition to parenthood and support their mental health. Specific user and website features were identified to optimize the use of father-focused websites.


Assuntos
Comportamentos Relacionados com a Saúde/fisiologia , Internet/estatística & dados numéricos , Adulto , Emoções , Feminino , Humanos , Masculino , Avaliação das Necessidades , Poder Familiar , Inquéritos e Questionários
2.
J Chem Inf Model ; 53(11): 2896-907, 2013 Nov 25.
Artigo em Inglês | MEDLINE | ID: mdl-24219364

RESUMO

FAst MEtabolizer (FAME) is a fast and accurate predictor of sites of metabolism (SoMs). It is based on a collection of random forest models trained on diverse chemical data sets of more than 20 000 molecules annotated with their experimentally determined SoMs. Using a comprehensive set of available data, FAME aims to assess metabolic processes from a holistic point of view. It is not limited to a specific enzyme family or species. Besides a global model, dedicated models are available for human, rat, and dog metabolism; specific prediction of phase I and II metabolism is also supported. FAME is able to identify at least one known SoM among the top-1, top-2, and top-3 highest ranked atom positions in up to 71%, 81%, and 87% of all cases tested, respectively. These prediction rates are comparable to or better than SoM predictors focused on specific enzyme families (such as cytochrome P450s), despite the fact that FAME uses only seven chemical descriptors. FAME covers a very broad chemical space, which together with its inter- and extrapolation power makes it applicable to a wide range of chemicals. Predictions take less than 2.5 s per molecule in batch mode on an Ultrabook. Results are visualized using Jmol, with the most likely SoMs highlighted.


Assuntos
Algoritmos , Células Eucarióticas/enzimologia , Inativação Metabólica , Redes e Vias Metabólicas , Software , Animais , Inteligência Artificial , Sistema Enzimático do Citocromo P-450/química , Sistema Enzimático do Citocromo P-450/metabolismo , Diazepam/química , Diazepam/metabolismo , Cães , Humanos , Modelos Químicos , Teoria Quântica , Ratos
3.
J Chem Inf Model ; 53(2): 354-67, 2013 Feb 25.
Artigo em Inglês | MEDLINE | ID: mdl-23351040

RESUMO

Understanding which physicochemical properties, or property distributions, are favorable for successful design and development of drugs, nutritional supplements, cosmetics, and agrochemicals is of great importance. In this study we have analyzed molecules from three distinct chemical spaces (i) approved drugs, (ii) human metabolites, and (iii) traditional Chinese medicine (TCM) to investigate four aspects determining the disposition of small organic molecules. First, we examined the physicochemical properties of these three classes of molecules and identified characteristic features resulting from their distinctive biological functions. For example, human metabolites and TCM molecules can be larger and more hydrophobic than drugs, which makes them less likely to cross membranes. We then quantified the shifts in physicochemical property space induced by metabolism from a holistic perspective by analyzing a data set of several thousand experimentally observed metabolic trees. Results show how the metabolic system aims to retain nutrients/micronutrients while facilitating a rapid elimination of xenobiotics. In the third part we compared these global shifts with the contributions made by individual metabolic reactions. For better resolution, all reactions were classified into phase I and phase II biotransformations. Interestingly, not all metabolic reactions lead to more hydrophilic molecules. We were able to identify biotransformations leading to an increase of logP by more than one log unit, which could be used for the design of drugs with enhanced efficacy. The study closes with the analysis of the physicochemical properties of metabolites found in the bile, faeces, and urine. Metabolites in the bile can be large and are often negatively charged. Molecules with molecular weight >500 Da are rarely found in the urine, and most of these large molecules are charged phase II conjugates.


Assuntos
Medicamentos de Ervas Chinesas/metabolismo , Metaboloma , Preparações Farmacêuticas/metabolismo , Bibliotecas de Moléculas Pequenas/metabolismo , Bile/metabolismo , Biotransformação , Bases de Dados de Produtos Farmacêuticos , Descoberta de Drogas , Medicamentos de Ervas Chinesas/química , Fezes/química , Humanos , Preparações Farmacêuticas/química , Preparações Farmacêuticas/urina , Bibliotecas de Moléculas Pequenas/química
4.
Can J Psychiatry ; 57(3): 184-91, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22398005

RESUMO

OBJECTIVE: To identify the substances used by people who die from suicide by overdose in Toronto and to determine the correlates of specific categories of substances used. METHOD: Coroner's records for all cases of suicide by overdose in Toronto, Ontario, during a 10-year period (1998 to 2007) were examined. Data collected included demographic data, all substances detected, and those determined by the coroner to have caused death. Logistic regression analyses were used to examine demographic and clinical factors associated with suicide by different drug types. RESULTS: There were 397 documented suicides by overdose (mean age 49.1 years, 50% female). Most substances detected were psychotropic prescription medications (n = 245), followed by other prescription medications (n = 143) and over-the-counter (OTC) medications (n = 83). More than one-half of all suicides by overdose were determined to have only one specific substance as the cause of death (n = 206). In suicides where only one class of substance was present in lethal amounts, OTC medication (n = 48), opioid analgesics (n = 44), and tricyclic antidepressants (n = 44) were most common. CONCLUSIONS: Suicides by overdose involved the use of different classes of substances, including psychotropic prescription medication, other prescription medications, as well as OTC medications. Physicians and pharmacists should be aware of commonly used prescription and OTC medications in overdose and exercise increased vigilance in prescribing or dispensing them to at-risk patients.


Assuntos
Analgésicos Opioides/intoxicação , Antidepressivos Tricíclicos/intoxicação , Overdose de Drogas , Hipnóticos e Sedativos/intoxicação , Medicamentos sem Prescrição/intoxicação , Psicotrópicos/intoxicação , Suicídio/estatística & dados numéricos , Adulto , Idoso , Idoso de 80 Anos ou mais , Causas de Morte , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Ontário/epidemiologia , Medicamentos sob Prescrição/intoxicação , Estudos Retrospectivos
5.
J Affect Disord ; 265: 505-510, 2020 03 15.
Artigo em Inglês | MEDLINE | ID: mdl-32090778

RESUMO

BACKGROUND: The prevalence of paternal perinatal depression (PPD) is approximately 10%. Despite this epidemiology and what is known about the importance of paternal mental health to family functioning, there is limited research on evidence-based interventions for PPD. This systematic review aimed to investigate the literature for randomized-controlled trials (RCT) of interventions for PPD. METHODS: This systematic review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Databases searched included Medline, EMBASE, EBM Reviews, PubMed, PsycInfo, and CINAHL. Search terms included depression, depressive disorder, fathers, pregnancy, and peripartum period, etc. RESULTS: The search strategy identified 2949 items. A total of 10 interventions over the course of 25 years of research met inclusion criteria. Three of the included studies found a small but significant effect on paternal depression scores. However, none of the included studies exclusively targeted paternal mental health. Instead, they addressed paternal well-being indirectly by focusing on the mother, infant, or couple relationship. LIMITATIONS: Studies did not require fathers to meet criteria for depression at baseline. This may have resulted in a selection bias, whereby the included fathers may not have required any treatment. We were also unable to perform additional statistical analyses because of the limited research available as well as the inconsistent outcome measures. CONCLUSIONS: There remains limited research on interventions assessing paternal depressive symptomatology, and none have targeted diagnosed PPD. Because of the prevalence and impact of this disorder, it is imperative to identify and offer treatments and interventions specifically tailored towards this population.


Assuntos
Transtorno Depressivo , Pai , Depressão/epidemiologia , Depressão/terapia , Transtorno Depressivo/epidemiologia , Transtorno Depressivo/terapia , Feminino , Humanos , Lactente , Masculino , Saúde Mental , Mães , Gravidez
6.
J Cheminform ; 7: 31, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26106450

RESUMO

ABSTRACT: Both metabolism and transport are key elements defining the bioavailability and biological activity of molecules, i.e. their adverse and therapeutic effects. Structured and high quality experimental data stored in a suitable container, such as a relational database, facilitates easy computational processing and thus allows for high quality information/knowledge to be efficiently inferred by computational analyses. Our aim was to create a freely accessible database that would provide easy access to data describing interactions between proteins involved in transport and xenobiotic metabolism and their small molecule substrates and modulators. We present Metrabase, an integrated cheminformatics and bioinformatics resource containing curated data related to human transport and metabolism of chemical compounds. Its primary content includes over 11,500 interaction records involving nearly 3,500 small molecule substrates and modulators of transport proteins and, currently to a much smaller extent, cytochrome P450 enzymes. Data was manually extracted from the published literature and supplemented with data integrated from other available resources. Metrabase version 1.0 is freely available under a CC BY-SA 4.0 license at http://www-metrabase.ch.cam.ac.uk.

8.
Early Interv Psychiatry ; 7(4): 442-50, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24164723

RESUMO

BACKGROUND: Most of the early psychosis intervention (EPI) training has focused on family physicians participants. In Northern Ontario, there is a shortage of primary care. This paper will present evaluation results of a pilot training programme for rural and remote youth mental health service providers. METHOD: A mixed methods approach was used. We evaluated a 2-day workshop about EPI for non-medical mental health workers delivered onsite and simultaneously by videoconferencing. There were 19 participants across four agencies. Seven were onsite and 12 were offsite. Participants' knowledge was measured using a validated questionnaire at pre-intervention and at 3-, 6- and 9-month follow up. A repeated measures ANOVA was used to evaluate knowledge acquisition between the two modes of training. At 6 months, focus group interviews were conducted to explore their experiences of the mode of intervention delivery and evaluation. Emerging themes were iteratively derived through a series of discussions involving independent coders. RESULTS: Only 15 complete datasets were available of the 19 original participants. Differences in knowledge acquisition between the two groups did not reach statistical difference. Six-month focus group data indicated that participants improved their relationship with EPI services and they were part of a strengthened network with other providers in the region. Post-intervention, the accuracy of referrals from participating agencies increased dramatically, with an increase in proportion of referrals who were eligible for EPI services. The follow-up process engaged participants in learning and re-engaged them with the material taught during the training session. CONCLUSIONS: The results about developing service partnerships and relationship with specialist services are encouraging for policy and service decision-makers to address mental health service needs in northern and remote areas.


Assuntos
Serviços de Saúde do Adolescente/provisão & distribuição , Pessoal de Saúde/educação , Serviços de Saúde Mental/provisão & distribuição , Avaliação de Programas e Projetos de Saúde , Serviços de Saúde Rural/provisão & distribuição , Adolescente , Competência Clínica , Intervenção Médica Precoce/provisão & distribuição , Acessibilidade aos Serviços de Saúde , Humanos , Ontário , Transtornos Psicóticos/prevenção & controle
9.
Can J Plast Surg ; 14(4): 211-4, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-19554137

RESUMO

BACKGROUND: Since 1993, the annual increase in cutaneous malignant melanoma (MM) incidence has been one of the highest for all cancers registered in Canada, with the leading rate in Nova Scotia (NS). The purpose of the present study was to document the pathological and epidemiological data on MM cases found in NS. PATIENTS AND METHODS: All MM cases identified by the Nova Scotia Cancer Registry from January 1998 to December 2002 were evaluated. The five-year survival outlook, by major prognostic factors, was also determined. In addition, the annual incidence and mortality rates from 1972 to 2002 were computed. RESULTS: Between 1998 and 2002, 925 MM cases were recorded. The age-standardized incidence rate for males and females in this period was 19.2 and 16.1 per 100,000 respectively. Men 65 years of age or older had the highest age-specific rate. The most common MM had a Breslow's depth of less than 1.0 mm (61.9%) and was Clark's level II (34.9%). There was no significant seasonal variation noted in the time of diagnosis. Survival analyses indicated that sex, age, tumour location and thickness were significant independent predictors. Despite the increase in incidence, there have only been modest changes in the annual mortality rate. CONCLUSION: The incidence of MM in NS increases with age, and is nearly double for men 65 years of age or older, compared with women in the same age group. Thin melanomas on the extremities of young females have the best prognosis in NS, which is similar to other parts of the world. Incidence appears to be unrelated to season. Public health interventions are necessary to reduce the burden of this disease.

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