Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 63
Filtrar
1.
Nucleic Acids Res ; 51(W1): W443-W450, 2023 07 05.
Artigo em Inglês | MEDLINE | ID: mdl-37194694

RESUMO

PHASTEST (PHAge Search Tool with Enhanced Sequence Translation) is the successor to the PHAST and PHASTER prophage finding web servers. PHASTEST is designed to support the rapid identification, annotation and visualization of prophage sequences within bacterial genomes and plasmids. PHASTEST also supports rapid annotation and interactive visualization of all other genes (protein coding regions, tRNA/tmRNA/rRNA sequences) in bacterial genomes. Given that bacterial genome sequencing has become so routine, the need for fast tools to comprehensively annotate bacterial genomes has become progressively more important. PHASTEST not only offers faster and more accurate prophage annotations than its predecessors, it also provides more complete whole genome annotations and much improved genome visualization capabilities. In standardized tests, we found that PHASTEST is 31% faster and 2-3% more accurate in prophage identification than PHASTER. Specifically, PHASTEST can process a typical bacterial genome in 3.2 min (raw sequence) or in 1.3 min when given a pre-annotated GenBank file. Improvements in PHASTEST's ability to annotate bacterial genomes now make it a particularly powerful tool for whole genome annotation. In addition, PHASTEST now offers a much more modern and responsive visualization interface that allows users to generate, edit, annotate and interactively visualize (via zooming, rotating, dragging, panning, resetting), colourful, publication quality genome maps. PHASTEST continues to offer popular options such as an API for programmatic queries, a Docker image for local installations, support for multiple (metagenomic) queries and the ability to perform automated look-ups against thousands of previously PHAST-annotated bacterial genomes. PHASTEST is available online at https://phastest.ca.


Assuntos
Bases de Dados de Ácidos Nucleicos , Prófagos , Ferramenta de Busca , Software , Genoma Bacteriano , Anotação de Sequência Molecular , Plasmídeos , Prófagos/genética
2.
Nucleic Acids Res ; 51(W1): W459-W467, 2023 07 05.
Artigo em Inglês | MEDLINE | ID: mdl-37099365

RESUMO

PlasMapper 3.0 is a web server that allows users to generate, edit, annotate and interactively visualize publication quality plasmid maps. Plasmid maps are used to plan, design, share and publish critical information about gene cloning experiments. PlasMapper 3.0 is the successor to PlasMapper 2.0 and offers many features found only in commercial plasmid mapping/editing packages. PlasMapper 3.0 allows users to paste or upload plasmid sequences as input or to upload existing plasmid maps from its large database of >2000 pre-annotated plasmids (PlasMapDB). This database can be searched by plasmid names, sequence features, restriction sites, preferred host organisms, and sequence length. PlasMapper 3.0 also supports the annotation of new or never-before-seen plasmids using its own feature database that contains common promoters, terminators, regulatory sequences, replication origins, selectable markers and other features found in most cloning plasmids. PlasMapper 3.0 has several interactive sequence editors/viewers that allow users to select and view plasmid regions, insert genes, modify restriction sites or perform codon optimization. The graphics for PlasMapper 3.0 have also been substantially upgraded. It now offers an interactive, full-color plasmid viewer/editor that allows users to zoom, rotate, re-color, linearize, circularize, edit annotated features and modify plasmid images or labels to improve the esthetic qualities of their plasmid map and textual displays. All the plasmid images and textual displays are downloadable in multiple formats. PlasMapper 3.0 is available online at https://plasmapper.ca.


Assuntos
Software , Interface Usuário-Computador , Plasmídeos/genética , Computadores , Sequência de Bases , Internet
3.
Nucleic Acids Res ; 51(D1): D611-D620, 2023 01 06.
Artigo em Inglês | MEDLINE | ID: mdl-36215042

RESUMO

The Human Microbial Metabolome Database (MiMeDB) (https://mimedb.org) is a comprehensive, multi-omic, microbiome resource that connects: (i) microbes to microbial genomes; (ii) microbial genomes to microbial metabolites; (iii) microbial metabolites to the human exposome and (iv) all of these 'omes' to human health. MiMeDB was established to consolidate the growing body of data connecting the human microbiome and the chemicals it produces to both health and disease. MiMeDB contains detailed taxonomic, microbiological and body-site location data on most known human microbes (bacteria and fungi). This microbial data is linked to extensive genomic and proteomic sequence data that is closely coupled to colourful interactive chromosomal maps. The database also houses detailed information about all the known metabolites generated by these microbes, their structural, chemical and spectral properties, the reactions and enzymes responsible for these metabolites and the primary exposome sources (food, drug, cosmetic, pollutant, etc.) that ultimately lead to the observed microbial metabolites in humans. Additional, extensively referenced data about the known or presumptive health effects, measured biosample concentrations and human protein targets for these compounds is provided. All of this information is housed in richly annotated, highly interactive, visually pleasing database that has been designed to be easy to search, easy to browse and easy to navigate. Currently MiMeDB contains data on 626 health effects or bioactivities, 1904 microbes, 3112 references, 22 054 reactions, 24 254 metabolites or exposure chemicals, 648 861 MS and NMR spectra, 6.4 million genes and 7.6 billion DNA bases. We believe that MiMeDB represents the kind of integrated, multi-omic or systems biology database that is needed to enable comprehensive multi-omic integration.


Assuntos
Metabolômica , Proteômica , Humanos , Metaboloma/genética , Bases de Dados Factuais , Gerenciamento de Dados
4.
Small ; : e2405056, 2024 Oct 25.
Artigo em Inglês | MEDLINE | ID: mdl-39449551

RESUMO

Electro-valorization of biomass-derived chemicals has ensured sustainable production of value-added products, an effective approach for reducing carbon footprint, through renewable energy. Electrochemical oxidation and reduction reactions in aqueous media using H2O as a potential source for active hydrogenated and oxygenated species fulfill the purpose. In this study, Ru─Co2P nanorods are explored as a bifunctional electrocatalyst toward valorization of Organics at basic media. The in-situ electrogenerated Co3+ and Co4+ species act as active oxidants toward product selectivity. An overpotential of 68 mV is found for hydrogen evolution reaction (1 m NaOH) with Ru─Co2P. Further, used as cathode, Ru─Co2P effectively reduces furfuraldehyde to furfuryl alcohol and p-nitrophenol to p-aminophenol. Ru doping enables ease of formation of active species both for reduction and oxidation, faster charge transfer between catalyst to absorbates. Density Functional Theory calculation establishes Ru incorporation in Co2P surface results in enhanced adsorption of substrates. Ru doping modulates the electronic structure of Co2P which changes the density of states resulting in faster water dissociation and water splitting. To reach 10 mA cm-2 current density only 1.6 V is required for water electrolysis, whereas 1.4 V is enough for substrate-paired electrolysis with simultaneous oxidation of benzyl alcohol and reduction of p-nitro phenol.

5.
Small ; : e2406431, 2024 Aug 08.
Artigo em Inglês | MEDLINE | ID: mdl-39115348

RESUMO

This work illustrates the practicality and economic benefits of employing a hetero-interfaced electrocatalyst (CoS2@CoFe-LDH), containing cobalt sulphide and iron-cobalt double-layer hydroxide for large-scale hydrogen generation. Here, the rational synthesis and detailed characterization of the CoS2@CoFe-LDH material to unravel its unique heterostructure are essayed. The CoS2@CoFe-LDH operates as a bifunctional electrocatalyst to trigger both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) in alkaline seawater (pH 14.0) while showcasing low overpotential requirement for HER (311 mV) and OER (450 mV) at 100 mA cm- 2 current density. The identical CoS2@CoFe-LDH on either electrode in an H-cell setup results in simultaneous H2 and O2 production from seawater with a ≈98% Faradaic efficiency with an applied potential of 1.96V@100 mA cm- 2. Next, this CoS2@CoFe-LDH catalyst is deployed on both sides of a membrane electrode assembly in a one-stack electrolyzer, which retains the intrinsic bifunctional reactivity of the catalyst to generate H2 and O2 in tandem from alkaline seawater with an impeccable energy efficiency (50 kWh kg-1-of-H2). This electrolyzer assembly can be directly linked with a Si-solar cell to produce truly green hydrogen with a solar-to-hydrogen generation efficiency of 15.88%, highlighting the potential of this converting seawater to hydrogen under solar irradiation.

6.
Chemistry ; 30(26): e202303411, 2024 May 08.
Artigo em Inglês | MEDLINE | ID: mdl-38441342

RESUMO

An extended class of organic multi-redox systems was derived from bicyclic(alkyl)amino carbenes (BICAACs). The highly-conjugated system undergoes a total of 4 redox events spanning a 1.8 V redox range. These organic compounds exhibited four different stable redox states (dication, radical cation, neutral and radical anion), and all of them were characterized either by single crystal X-ray study and/or various spectroscopic studies. Three of the four redox states are stable to air and moisture. The availability of stable multiple redox states demonstrated promise towards their efficacy in the symmetric H-cell charge/discharge cycling. Among various redox states, the dication/neutral state works efficiently and continuously for 1500 cycles in 2e- charge/discharge process outside glovebox in commercially available DMF with minimum capacity loss (retaining nearly 90 % Coulombic efficiency). Surprisingly, the efficiency of the redox cycle was retained even if the system was exposed to air for 30 days when it slowly regenerated to the initial deep blue radical cation, and it exhibited another 100 charge/discharge cycles with a minimal capacity loss. Such a stable H-cell cycling ability is not well known among organic molecule-based systems.

7.
Inorg Chem ; 63(16): 7493-7503, 2024 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-38578920

RESUMO

The relentless increase in drug resistance of platinum-based chemotherapeutics has opened the scope for other new cancer therapies with novel mechanisms of action (MoA). Recently, photocatalytic cancer therapy, an intrusive catalytic treatment, is receiving significant interest due to its multitargeting cell death mechanism with high selectivity. Here, we report the synthesis and characterization of three photoresponsive Ru(II) complexes, viz., [Ru(ph-tpy)(bpy)Cl]PF6 (Ru1), [Ru(ph-tpy)(phen)Cl]PF6 (Ru2), and [Ru(ph-tpy)(aip)Cl]PF6 (Ru3), where, ph-tpy = 4'-phenyl-2,2':6',2″-terpyridine, bpy = 2,2'-bipyridine, phen = 1,10-phenanthroline, and aip = 2-(anthracen-9-yl)-1H-imidazo[4,5-f][1,10] phenanthroline, showing photocatalytic anticancer activity. The X-ray crystal structures of Ru1 and Ru2 revealed a distorted octahedral geometry with a RuN5Cl core. The complexes showed an intense absorption band in the 440-600 nm range corresponding to the metal-to-ligand charge transfer (MLCT) that was further used to achieve the green light-induced photocatalytic anticancer effect. The mitochondria-targeting photostable complex Ru3 induced phototoxicity with IC50 and PI values of ca. 0.7 µM and 88, respectively, under white light irradiation and ca. 1.9 µM and 35 under green light irradiation against HeLa cells. The complexes (Ru1-Ru3) showed negligible dark cytotoxicity toward normal splenocytes (IC50s > 50 µM). The cell death mechanistic study revealed that Ru3 induced ROS-mediated apoptosis in HeLa cells via mitochondrial depolarization under white or green light exposure. Interestingly, Ru3 also acted as a highly potent catalyst for NADH photo-oxidation under green light. This NADH photo-oxidation process also contributed to the photocytotoxicity of the complexes. Overall, Ru3 presented multitargeting synergistic type I and type II photochemotherapeutic effects.


Assuntos
Antineoplásicos , Complexos de Coordenação , Luz , Piridinas , Rutênio , Humanos , Antineoplásicos/síntese química , Antineoplásicos/farmacologia , Apoptose/efeitos dos fármacos , Catálise , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Complexos de Coordenação/síntese química , Complexos de Coordenação/farmacologia , Ensaios de Seleção de Medicamentos Antitumorais , Luz Verde , Células HeLa , Estrutura Molecular , Processos Fotoquímicos , Piridinas/química , Piridinas/farmacologia , Espécies Reativas de Oxigênio/metabolismo , Rutênio/química , Rutênio/farmacologia
8.
N Engl J Med ; 382(18): 1721-1731, 2020 04 30.
Artigo em Inglês | MEDLINE | ID: mdl-32348643

RESUMO

BACKGROUND: Persons with mental disorders are at a higher risk than the general population for the subsequent development of certain medical conditions. METHODS: We used a population-based cohort from Danish national registries that included data on more than 5.9 million persons born in Denmark from 1900 through 2015 and followed them from 2000 through 2016, for a total of 83.9 million person-years. We assessed 10 broad types of mental disorders and 9 broad categories of medical conditions (which encompassed 31 specific conditions). We used Cox regression models to calculate overall hazard ratios and time-dependent hazard ratios for pairs of mental disorders and medical conditions, after adjustment for age, sex, calendar time, and previous mental disorders. Absolute risks were estimated with the use of competing-risks survival analyses. RESULTS: A total of 698,874 of 5,940,299 persons (11.8%) were identified as having a mental disorder. The median age of the total population was 32.1 years at entry into the cohort and 48.7 years at the time of the last follow-up. Persons with a mental disorder had a higher risk than those without such disorders with respect to 76 of 90 pairs of mental disorders and medical conditions. The median hazard ratio for an association between a mental disorder and a medical condition was 1.37. The lowest hazard ratio was 0.82 for organic mental disorders and the broad category of cancer (95% confidence interval [CI], 0.80 to 0.84), and the highest was 3.62 for eating disorders and urogenital conditions (95% CI, 3.11 to 4.22). Several specific pairs showed a reduced risk (e.g., schizophrenia and musculoskeletal conditions). Risks varied according to the time since the diagnosis of a mental disorder. The absolute risk of a medical condition within 15 years after a mental disorder was diagnosed varied from 0.6% for a urogenital condition among persons with a developmental disorder to 54.1% for a circulatory disorder among those with an organic mental disorder. CONCLUSIONS: Most mental disorders were associated with an increased risk of a subsequent medical condition; hazard ratios ranged from 0.82 to 3.62 and varied according to the time since the diagnosis of the mental disorder. (Funded by the Danish National Research Foundation and others; COMO-GMC ClinicalTrials.gov number, NCT03847753.).


Assuntos
Doença/etiologia , Transtornos Mentais/complicações , Adulto , Doenças Cardiovasculares/etiologia , Estudos de Coortes , Dinamarca/epidemiologia , Feminino , Doenças Urogenitais Femininas/etiologia , Humanos , Masculino , Doenças Urogenitais Masculinas/etiologia , Pessoa de Meia-Idade , Doenças Musculoesqueléticas/etiologia , Neoplasias/etiologia , Risco , Esquizofrenia/complicações , Fatores Sexuais
9.
Aust N Z J Psychiatry ; 56(7): 757-770, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-34708662

RESUMO

BACKGROUND AND OBJECTIVES: Evidence indicates that mood disorders often co-occur with substance-related disorders. However, pooling comorbidity estimates can be challenging due to heterogeneity in diagnostic criteria and in the overall study design. The aim of this study was to systematically review and, where appropriate, meta-analyse estimates related to the pairwise comorbidity between mood disorders and substance-related disorders, after sorting these estimates by various study designs. METHODS: We searched PubMed (MEDLINE), Embase, CINAHL and Web of Science for publications between 1980 and 2017 regardless of geographical location and language. We meta-analysed estimates from original articles in 4 broadly defined mood and 35 substance-related disorders. RESULTS: After multiple eligibility steps, we included 120 studies for quantitative analysis. In general, regardless of variations in diagnosis type, temporal order or use of adjustments, there was substantial comorbidity between mood and substance-related disorders. We found a sixfold elevated risk between broadly defined mood disorder and drug dependence (odds ratio = 5.7) and fivefold risk between depression and cannabis dependence (odds ratio = 4.9) while the highest pooled estimate, based on period prevalence risk, was found between broadly defined dysthymic disorder and drug dependence (odds ratio = 11.3). Based on 56 separate meta-analyses, all pooled odds ratios were above 1, and 46 were significantly greater than 1 (i.e. the 95% confidence intervals did not include 1). CONCLUSION: This review found robust and consistent evidence of an increased risk of comorbidity between many combinations of mood and substance-related disorders. We also identified a number of under-researched mood and substance-related disorders, suitable for future scrutiny. This review reinforces the need for clinicians to remain vigilant in order to promptly identify and treat these common types of comorbidity.


Assuntos
Transtornos Relacionados ao Uso de Substâncias , Comorbidade , Humanos , Transtornos do Humor/epidemiologia , Razão de Chances , Prevalência , Transtornos Relacionados ao Uso de Substâncias/epidemiologia
10.
Depress Anxiety ; 38(3): 286-306, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33225514

RESUMO

There is consistent evidence that mood disorders often co-occur with anxiety disorders, however, the strength of the association of these two broad groups of disorders has been challenging to summarize across different studies. The aim was to conduct a meta-analysis of publications reporting on the pairwise comorbidity between mood and anxiety disorders after sorting into comparable study types. We searched MEDLINE, Embase, CINAHL, Web of Science, and the grey literature for publications between 1980 and 2017 regardless of geographical locations and languages. We meta-analyzed estimates from original articles after sorting by: (a) broad or narrow diagnostic criteria, (b) study time-frame, and (c) estimates with or without covariate adjustments. Over 43 000 unique studies were identified through electronic searches, of which 391 were selected for full-text review. Finally, 171 studies were eligible for inclusion, including 53 articles from additional snowball searching. In general, regardless of variations in diagnosis type, study time-frame, temporal order, or use of adjustments, there was substantial comorbidity between mood and anxiety disorders. Based on the entire 90 separate meta-analyses, the median OR was 6.1 (range 1.5-18.7). Of these estimates, all 90 were above 1, and 87 were significantly greater than 1 (i.e., the 95% confidence intervals did not include 1). Fourteen of the 90 pooled estimates had ORs that were greater than 10. This systematic review found robust and consistent evidence of comorbidity between broadly defined mood and anxiety disorders. Clinicians should be vigilant for the prompt identification and treatment of this common type of comorbidity.


Assuntos
Afeto , Transtornos de Ansiedade , Transtornos de Ansiedade/epidemiologia , Comorbidade , Humanos , Transtornos do Humor/epidemiologia , Morbidade
11.
Psychol Med ; 48(16): 2730-2739, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-29478433

RESUMO

BACKGROUND: Previous work has identified associations between psychotic experiences (PEs) and general medical conditions (GMCs), but their temporal direction remains unclear as does the extent to which they are independent of comorbid mental disorders. METHODS: In total, 28 002 adults in 16 countries from the WHO World Mental Health (WMH) Surveys were assessed for PEs, GMCs and 21 Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) mental disorders. Discrete-time survival analyses were used to estimate the associations between PEs and GMCs with various adjustments. RESULTS: After adjustment for comorbid mental disorders, temporally prior PEs were significantly associated with subsequent onset of 8/12 GMCs (arthritis, back or neck pain, frequent or severe headache, other chronic pain, heart disease, high blood pressure, diabetes and peptic ulcer) with odds ratios (ORs) ranging from 1.3 [95% confidence interval (CI) 1.1-1.5] to 1.9 (95% CI 1.4-2.4). In contrast, only three GMCs (frequent or severe headache, other chronic pain and asthma) were significantly associated with subsequent onset of PEs after adjustment for comorbid GMCs and mental disorders, with ORs ranging from 1.5 (95% CI 1.2-1.9) to 1.7 (95% CI 1.2-2.4). CONCLUSIONS: PEs were associated with the subsequent onset of a wide range of GMCs, independent of comorbid mental disorders. There were also associations between some medical conditions (particularly those involving chronic pain) and subsequent PEs. Although these findings will need to be confirmed in prospective studies, clinicians should be aware that psychotic symptoms may be risk markers for a wide range of adverse health outcomes. Whether PEs are causal risk factors will require further research.


Assuntos
Doença Crônica/epidemiologia , Dor Crônica/epidemiologia , Saúde Global/estatística & dados numéricos , Saúde Mental/estatística & dados numéricos , Transtornos Psicóticos/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Comorbidade , Feminino , Inquéritos Epidemiológicos/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Organização Mundial da Saúde , Adulto Jovem
12.
Br J Psychiatry ; 211(6): 373-380, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29097400

RESUMO

BackgroundTraumatic events are associated with increased risk of psychotic experiences, but it is unclear whether this association is explained by mental disorders prior to psychotic experience onset.AimsTo investigate the associations between traumatic events and subsequent psychotic experience onset after adjusting for post-traumatic stress disorder and other mental disorders.MethodWe assessed 29 traumatic event types and psychotic experiences from the World Mental Health surveys and examined the associations of traumatic events with subsequent psychotic experience onset with and without adjustments for mental disorders.ResultsRespondents with any traumatic events had three times the odds of other respondents of subsequently developing psychotic experiences (OR = 3.1, 95% CI 2.7-3.7), with variability in strength of association across traumatic event types. These associations persisted after adjustment for mental disorders.ConclusionsExposure to traumatic events predicts subsequent onset of psychotic experiences even after adjusting for comorbid mental disorders.


Assuntos
Acontecimentos que Mudam a Vida , Transtornos Mentais/epidemiologia , Trauma Psicológico/epidemiologia , Transtornos Psicóticos/epidemiologia , Comorbidade , Saúde Global/estatística & dados numéricos , Inquéritos Epidemiológicos/estatística & dados numéricos , Humanos , Prevalência , Trauma Psicológico/complicações , Transtornos Psicóticos/etiologia
13.
Aust N Z J Psychiatry ; 51(9): 921-929, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28829181

RESUMO

OBJECTIVE: Having sufficient sera concentrations of 25-hydroxyvitamin D is important for a range of health outcomes including cardiometabolic diseases. Clinical studies in people with psychotic disorders suggest that a sizable proportion has suboptimal vitamin D status (i.e. vitamin D deficiency or insufficiency). Individuals with psychosis also have many of the risk factors associated with suboptimal vitamin D status such as smoking, obesity, and reduced physical activity. The aim of this study was to examine the prevalence and socio-demographic and clinical correlates of vitamin D status using a large, population-based sample of adults with psychotic disorders. METHODS: Data were collected as part of the Survey of High Impact Psychosis, a population-based survey of Australians aged 18-64 years with a psychotic disorder. 25-Hydroxyvitamin D concentration was measured in 463 participants. 25-Hydroxyvitamin D concentration was dichotomised into optimal (above 50 nmol/L) and suboptimal (below 50 nmol/L). The influence of a range of socio-demographic and clinical variables on vitamin D status was examined using logistic regression. RESULTS: Nearly half (43.6%) of the participants had suboptimal vitamin D status. Those with (a) increased physical activity or (b) positive symptoms had significantly reduced odds of having suboptimal vitamin D status. However, there were no significant associations between suboptimal vitamin D status and other psychiatric symptom measures or cardiometabolic risk factors. CONCLUSION: Many people with psychotic disorders have suboptimal vitamin D status. As part of the routine assessment of physical health status, clinicians should remain mindful of vitamin D status in this vulnerable population and encourage the use of appropriate vitamin D supplements.


Assuntos
Exercício Físico , Transtornos Psicóticos/sangue , Deficiência de Vitamina D/sangue , Vitamina D/análogos & derivados , Adolescente , Adulto , Austrália/epidemiologia , Comorbidade , Humanos , Pessoa de Meia-Idade , Prevalência , Transtornos Psicóticos/epidemiologia , Vitamina D/sangue , Deficiência de Vitamina D/epidemiologia , Adulto Jovem
14.
Soc Psychiatry Psychiatr Epidemiol ; 52(7): 795-802, 2017 07.
Artigo em Inglês | MEDLINE | ID: mdl-27832319

RESUMO

PURPOSE: To explore the association between histories of common mental disorders, delusional-like experiences, and recent physical activity using a large nationally representative population-based sample from Australia. We predicted that a past history of a common mental disorder or delusional-like experiences would be associated with insufficient physical activity. METHODS: The study was based on the Australian National Survey of Mental Health and Wellbeing 2007 (n = 8841). The Composite International Diagnostic Interview was used to identify a lifetime and past year history of common mental disorders and delusional-like experiences. Physical activity over the preceding week was estimated using the questions based on the Active Australia survey with respondents classified as (a) insufficiently physically active versus (b) sufficiently physically active based on national recommendations. We examined the relationship between the variables of interest using logistic regression, adjusting for potential confounding factors. RESULTS: Almost half of the participants (46.0%) were classified as sufficiently physically active. Compared to those with no past mental disorder, those with lifetime or past year history of common mental disorders did not differ on recent physical activity status. Furthermore, we found no significant association between the number of lifetime mental disorders or the presence of delusional-like experience and recent physical activity status. CONCLUSIONS: Our findings suggest that a diagnosis of common mental disorder, with or without recent symptoms and comorbid diagnoses, or even having self-ascribed perception of poor mental well-being, is not associated with insufficient physical activity.


Assuntos
Exercício Físico , Transtornos Mentais/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Austrália/epidemiologia , Feminino , Inquéritos Epidemiológicos , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
15.
Macromol Rapid Commun ; 35(18): 1592-7, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25078781

RESUMO

A series of fluorene-based conjugated polymers containing the aggregation-induced emissive (AIE)-active tetraphenylethene and dicarboxylate pseudocrown as a receptor exhibits a unique dual-mode sensing ability for selective detection of lead ion in water. Fluorescence turn-off and turn-on detections are realized in 80%-90% and 20% water in tetrahydrofuran (THF), respectively, for lead ion with a concentration as low as 10(-8) m.


Assuntos
Fluorescência , Chumbo/análise , Polímeros/química , Espectrometria de Fluorescência/métodos , Poluentes Químicos da Água/análise , Furanos/química , Íons/análise , Íons/química , Chumbo/química , Espectroscopia de Ressonância Magnética , Modelos Químicos , Estrutura Molecular , Reprodutibilidade dos Testes , Poluentes Químicos da Água/química
16.
Aust N Z J Psychiatry ; 48(4): 352-9, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24270308

RESUMO

OBJECTIVES: The aim of this study was to model estimates related to (a) the incidence of psychotic disorders and (b) the mortality associated with these disorders based on a large, population-based prevalence study. METHODS: Data were drawn from the second national survey of adults with psychotic disorders conducted in seven Australian catchment areas during March to December 2010. To generate incidence rate estimates, we identified recent onset cases recruited as part of the prevalence study and then imputed population-based incidence rates using a set of conservative assumptions. Similarly, for mortality rates, we identified individuals who had died after being identified as 'screen-positive' for psychosis, but prior to full clinical assessment. Using a set of conservative assumptions, we then used these estimates to infer population-based mortality rates. RESULTS: Based on our models, we estimated that the incidence rate for psychotic disorders was 28 cases per 100,000 population. The rate estimates were significantly higher in males than females, with an overall male:female ratio of 1.57:1. Incidence rate estimates peaked in the youngest age group (18-24 years). The adjusted mortality rate estimated during the whole period of observation was 12.5 per 1000 persons, with a standardised mortality ratio of 5.5. CONCLUSIONS: Using treated prevalence data and observed deaths with appropriate algorithms, we were able to impute incidence and mortality rates for psychotic disorders consistent with the published literature. While the second national survey of psychotic disorders was not designed to identify mortality, our estimates provide a stark reminder of the increased mortality associated with these disorders.


Assuntos
Transtornos Psicóticos/epidemiologia , Transtornos Psicóticos/mortalidade , Adolescente , Adulto , Fatores Etários , Algoritmos , Austrália/epidemiologia , Área Programática de Saúde/estatística & dados numéricos , Feminino , Inquéritos Epidemiológicos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Fatores Sexuais , Adulto Jovem
17.
Aust Occup Ther J ; 61(6): 424-36, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25284162

RESUMO

BACKGROUND/AIM: The Individual Placement and Support (IPS) approach is an evidence-based form of supported employment for people with severe and persistent mental illness. This approach is not yet widely available in Australia even though there is mounting evidence of its generalisability outside the USA. One previous Australian randomised controlled trial found that IPS is effective for young people with first episode psychosis. The aim of the current trial was to assess the effectiveness of evidence-based supported employment when implemented for Australian adult consumers of public mental health services by utilising existing service systems. METHODS: A four-site randomised control trial design (n = 208) was conducted in Brisbane (two sites), Townsville and Cairns. The intervention consisted of an IPS supported employment service hosted by a community mental health team. The control condition was delivered at each site by mental health teams referring consumers to other disability employment services in the local area. RESULTS: At 12 months, those in the IPS condition had 2.4 times greater odds of commencing employment than those in the control condition (42.5% vs. 23.5%). The conditions did not differ on secondary employment outcomes including job duration, hours worked, or job diversity. Attrition was higher than expected in both conditions with 28.4% completing the baseline interview but taking no further part in the study. CONCLUSION: The results support previous international findings that IPS-supported employment is more effective than non-integrated supported employment. IPS can be successfully implemented this way in Australia, but with a loss of effect strength compared to previous USA trials.


Assuntos
Readaptação ao Emprego/normas , Prática Clínica Baseada em Evidências , Transtornos Mentais/reabilitação , Pessoas Mentalmente Doentes , Adolescente , Adulto , Readaptação ao Emprego/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Dados de Sequência Molecular , Pacientes Desistentes do Tratamento/estatística & dados numéricos , Queensland , Adulto Jovem
18.
Dalton Trans ; 53(32): 13591-13601, 2024 Aug 13.
Artigo em Inglês | MEDLINE | ID: mdl-39078263

RESUMO

Here, we have synthesized and characterized three visible light responsive terpyridine based-Re(I)-tricarbonyl complexes; [Re(CO)3(ph-tpy)Cl] (Retp1), [Re(CO)3(an-tpy)Cl] (Retp2), and [Re(CO)3(py-tpy)Cl] (Retp3) where ph-tpy = 4'-phenyl-2,2':6',2″-terpyridine; an-tpy = 4'-anthracenyl-2,2':6',2″-terpyridine, py-tpy = 4'-pyrenyl-2,2':6',2″-terpyridine. The structures of Retp1 and Retp2 were confirmed from the SC-XRD data, indicating distorted octahedral structures. Unlike traditional PDT agents, these complexes generated reactive oxygen species (ROS) via type I and type II pathways and oxidized redox crucial NADH (reduced nicotinamide adenine dinucleotide) upon visible light exposure. Retp3 showed significant mitochondrial localization and demonstrated photoactivated anticancer activity (IC50 ∼ 2 µM) by inducing ROS-mediated cell death in cancer cells selectively (photocytotoxicity Index, PI > 28) upon compromising mitochondrial function in A549 cells. Their diagnostic capabilities were ultimately assessed using clinically relevant 3D multicellular tumor spheroids (MCTs).


Assuntos
Antineoplásicos , Complexos de Coordenação , NAD , Oxirredução , Piridinas , Espécies Reativas de Oxigênio , Rênio , Humanos , Espécies Reativas de Oxigênio/metabolismo , NAD/química , NAD/metabolismo , Piridinas/química , Piridinas/farmacologia , Complexos de Coordenação/química , Complexos de Coordenação/farmacologia , Complexos de Coordenação/síntese química , Antineoplásicos/farmacologia , Antineoplásicos/química , Antineoplásicos/síntese química , Rênio/química , Rênio/farmacologia , Fármacos Fotossensibilizantes/química , Fármacos Fotossensibilizantes/farmacologia , Fármacos Fotossensibilizantes/síntese química , Luz , Ensaios de Seleção de Medicamentos Antitumorais , Fotoquimioterapia , Estrutura Molecular , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Células A549 , Linhagem Celular Tumoral
19.
Aust N Z J Psychiatry ; 47(8): 754-61, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23630393

RESUMO

OBJECTIVE: Because comorbidity between mental and physical disorders is commonly found in patients, it would be expected that this pattern would also be reflected at the family level. During a recent population-based survey of common mental disorders, respondents were asked about the presence of selected mental and physical disorders in their relatives. The aim of this research was to describe the within-family co-occurrence of selected common physical and mental disorders in a population-based sample. METHODS: Subjects were drawn from the Australian National Survey of Mental Health and Wellbeing 2007. A modified version of the World Mental Health Survey Initiative of the Composite International Diagnostic Interview (WMH-CIDI 3.0, henceforth CIDI) was used to identify lifetime-ever common psychiatric disorders (anxiety disorders, depression, drug or alcohol disorders). The respondents were asked if any of their relatives had one of a list of psychiatric (anxiety, bipolar disorder, depression, drug or alcohol problem, schizophrenia) or general physical disorders (cancer, heart problems, intellectual disability, memory problems). We examined the relationship between the variables of interest using logistic regression, adjusting for potential confounding factors. RESULTS: Compared to otherwise-well respondents, those who had a CIDI diagnosis of major depressive disorders, anxiety disorders, or drug or alcohol abuse/dependence were significantly more likely to have first-degree relatives with (a) the same diagnosis as the respondent, (b) other mental disorders not identified in the respondent, and (c) a broad range of general physical conditions. CONCLUSIONS: Individuals with common mental disorders report greater familial co-occurrence for a range of mental and physical disorders. When eliciting family histories, clinicians should remain mindful that both mental and physical disorders can co-occur within families.


Assuntos
Doenças Cardiovasculares/epidemiologia , Transtornos Mentais/epidemiologia , Neoplasias/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Transtornos de Ansiedade/epidemiologia , Austrália/epidemiologia , Comorbidade , Família , Feminino , Inquéritos Epidemiológicos , Humanos , Masculino , Pessoa de Meia-Idade , Transtornos Relacionados ao Uso de Substâncias/epidemiologia
20.
J Paediatr Child Health ; 49(1): 19-26, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22050179

RESUMO

This study aims to review the evidence for the efficacy of risperidone in the treatment of disruptive behavioural disorders (DBDs) in children and adolescents. Established databases were searched using the terms 'Risperidone and efficacy and children' and 'Risperidone and efficacy and adolescents'. Randomised, double-blind controlled studies were retained for analysis. Janseen-Cilag was contacted to identify any unpublished studies. Quality of studies was measured using Jadad scores. Seven studies of 657 subjects with a mean age of 9.9 years (SD= 2.0) (range 4-18 years) were identified. Only one study was judged to use the highest quality of methodology according to the Jadad score. Patients with DBD who were treated with risperidone showed clinical improvement compared with placebo. Weight gain, somnolence and gastrointestinal complaints were common. Risperidone was found to be efficacious in reducing symptoms in children and adolescents with DBD. However, studies were mostly of short duration and had deficiencies in the descriptions of blinding and randomisation. Research using rigorous methodology examining the long-term outcomes of efficacy and safety are required to inform clinicians and families of the therapeutic benefits and risks of risperidone in this clinical population.


Assuntos
Antipsicóticos/uso terapêutico , Transtornos de Deficit da Atenção e do Comportamento Disruptivo/tratamento farmacológico , Risperidona/uso terapêutico , Adolescente , Transtornos de Deficit da Atenção e do Comportamento Disruptivo/diagnóstico , Criança , Humanos , Testes Psicológicos , Ensaios Clínicos Controlados Aleatórios como Assunto , Índice de Gravidade de Doença , Resultado do Tratamento
SELEÇÃO DE REFERÊNCIAS
Detalhe da pesquisa