RESUMO
BACKGROUND: This study aimed to achieve expert consensus regarding key items to be addressed by non-clinical operators using computer-software integrated medical dispatch protocols to manage out-of-hours telephone triage (OOH-TT) services for calls involving older adults seeking non-urgent unplanned care across Belgium. METHODS: A three-part classic e-Delphi study was conducted. A purposive sample of experts specialized in out-of-hours unplanned care and/or older persons across Belgium were recruited as panelists. Eligibility criteria included experts with at least 2 years of relevant experience. Level of consensus was defined to be reached when at least 70% of the panelists agreed or disagreed regarding the value of each item proposed within a survey for the top 10 most frequently used protocols for triaging older adults. Responses were analyzed over several rounds until expert consensus was found. Descriptive and thematic analyses were used to aggregate responses. RESULTS: N = 12 panelists agreed that several important missing protocol topics were not covered by the existing OOH-TT service. They also agreed about the nature of use (for the top 10 most frequently used protocols) but justified that some modifications should be made to keywords, interrogation questions, degree of urgency and/or flowcharts used for the algorithms to help operators gain better comprehensive understanding patient profiles, medical habits and history, level of support from informal caregivers, known comorbidities and frailty status. Furthermore, panelists also stressed the importance of considering feasibility in implementing protocols within the real-world setting and prioritizing the right type of training for operators which can facilitate the delivery of high-quality triage. Overall, consensus was found for nine of the top 10 most frequently used protocols for triaging older adults with no consensus found for the protocol on triaging patients unwell for no apparent reason. CONCLUSION: Our findings show that overall, a combination of patient related factors must be addressed to provide high quality triage for adults seeking non-urgent unplanned care over the telephone (in addition to age). However, further elements such as appropriate operator training and feasibility of implementing more population-specific protocols must also be considered. This study presents a useful step towards identifying key items which must be targeted within the larger scope of providing non-urgent out-of-hours telephone triage services for older adults seeking non-urgent unplanned care.
Assuntos
Plantão Médico , Triagem , Humanos , Idoso , Idoso de 80 Anos ou mais , Triagem/métodos , Bélgica , Técnica Delphi , TelefoneRESUMO
BACKGROUND: As emergency department (ED) leaders started integrating geriatric emergency guidelines on a facultative basis, important variations have emerged between EDs in care for older patients. The aim of this study was to establish a consensus on minimum operational standards for Geriatric ED care in Belgium. METHODS: A two-stage modified Delphi study was conducted. Twenty panellists were recruited from Dutch and French speaking regions in Belgium to join an interdisciplinary expert panel. In the first stage, an online survey was conducted to identify and define all possible elements of geriatric emergency care. In the second stage, an online survey and online expert panel meeting were organized consecutively to determine which elements should be recognized as minimum operational standards. RESULTS: Between March 2020 and February 2021, the expert panel developed a broad consensus including ten statements focusing on the target population, specific goals, availability of geriatric practitioners and quality assurance. Additionally, the expert panel also determined which protocols, materials and accommodation criteria should be available in conventional EDs (39 standards) and in observational EDs (57 standards). CONCLUSIONS: This study presents a consensus on minimum operational standards for geriatric emergency care in two ED types: the conventional ED and the observational ED. These findings may serve as a starting point towards broadly supported minimum standards of care stipulated by legislation in Belgium or other countries.
Assuntos
Serviços Médicos de Emergência , Idoso , Humanos , Bélgica , Técnica Delphi , Serviço Hospitalar de Emergência , Tratamento de EmergênciaRESUMO
BACKGROUND: The acquisition of geriatric-friendly resources is an important part of adapting emergency department (ED) care to the needs of vulnerable older patients. The aim of this study was to explore the availability of geriatric-friendly protocols, equipment and physical environment criteria in EDs and to identify related improvement opportunities. METHODS: The head nurse of 63 EDs in Flanders and Brussels Capital Region was invited to complete a survey in collaboration with the chief physician of the ED. The questionnaire was inspired by the American College of Emergency Physicians Geriatric ED Accreditation Program and explored the availability, relevance and feasibility of geriatric-friendly protocols, equipment and physical environment. Descriptive analyses were performed. A region-wide improvement opportunity was defined as a resource that was never to occasionally (0-50%) available on Flemish EDs and was scored (rather or very) relevant by at least 75% of respondents. RESULTS: A total of 32 questionnaires were analysed. The response rate was 50.8%. All surveyed resources were available in at least one ED. Eighteen out of 52 resources (34.6%) were available in more than half of EDs. Ten region-wide improvement opportunities were identified. These comprised seven protocols and three physical environment characteristics: 1) a geriatric approach initiated from physical triage, 2) elder abuse, 3) discharge to residential facility, 4) frequent geriatric pathologies, 5) access to geriatric specific follow-up clinics, 6) medication reconciliation, 7) minimising 'nihil per os' designation, 8) a large-face, analogue clock in each patient room, 9) raised toilet seats and 10) non-slip floors. CONCLUSIONS: Currently available resources supporting optimal ED care for older patients in Flanders are very heterogeneous. Researchers, clinicians and policy makers need to define which geriatric-friendly protocols, equipment and physical environment criteria should become region-wide minimum operational standards. Findings of this study are relevant to facilitate the development process of this endeavour.
Assuntos
Serviços Médicos de Emergência , Serviços de Saúde para Idosos , Médicos , Idoso , Humanos , Bélgica/epidemiologia , Serviço Hospitalar de Emergência , Inquéritos e QuestionáriosRESUMO
BACKGROUND: In the recent decades, the use of computerized decision support software (CDSS)-integrated telephone triage (TT) has become an important tool for managing rising healthcare demands and overcrowding in the emergency department. Though these services have generally been shown to be effective, large gaps in the literature exist with regards to the overall quality of these systems. In the current systematic review, we aim to document the consistency of decisions that are generated in CDSS-integrated TT. Furthermore, we also seek to map those factors in the literature that have been identified to have an impact on the consistency of generated triage decisions. METHODS: As part of the TRANS-SENIOR international training and research network, a systematic review of the literature was conducted in November 2019. PubMed, Web of Science, CENTRAL, and the CINAHL database were searched. Quantitative articles including a CDSS component and addressing consistency of triage decisions and/or factors associated with triage decisions were eligible for inclusion in the current review. Studies exploring the use of other types of digital support systems for triage (i.e. web chat, video conferencing) were excluded. Quality appraisal of included studies were performed independently by two authors using the Methodological Index for Non-Randomized Studies. RESULTS: From a total of 1551 records that were identified, 39 full-texts were assessed for eligibility and seven studies were included in the review. All of the studies (n = 7) identified as part of our search were observational and were based on nurse-led telephone triage. Scientific efforts investigating our first aim was very limited. In total, two articles were found to investigate the consistency of decisions that are generated in CDSS-integrated TT. Research efforts were targeted largely towards the second aim of our study-all of the included articles reported factors related to the operator- (n = 6), patient- (n = 1), and/or CDSS-integrated (n = 2) characteristics to have an influence on the consistency of CDSS-integrated TT decisions. CONCLUSION: To date, some efforts have been made to better understand how the use of CDSS-integrated TT systems may vary across settings. In general, however, the evidence-base surrounding this field of literature is largely inconclusive. Further evaluations must be prompted to better understand this area of research. PROTOCOL REGISTRATION: The protocol for this study is registered in the PROSPERO database (registration number: CRD42020146323).
Assuntos
Enfermeiras e Enfermeiros , Triagem , Atenção à Saúde , Humanos , Software , TelefoneRESUMO
The stigma of addiction in Muslim communities is a significant barrier to accessing mental health services. The objective of this study was to evaluate the impact of a newly developed spiritually-adapted addictions psychoeducational program with adult Muslims in the mosque setting. Ninety-three individuals were recruited from nine different mosques within Toronto, Canada. Ninety-minute seminars were presented. This study used a convergent mixed method design. There was a significant increase in the participants' self-reported knowledge (t = 3.6; p < 0.001), a more positive attitude on two scales (t = 3.7; p < 0.001 and t = 2.9; p = 0.005) and an increase in willingness to seek help from a medical doctor and mental health professional (t = 4.4; p < 0.001 and t = 2.2; p = 0.03, respectively) post-seminar as compared to baseline. Qualitative data confirmed these changes. Evidence-informed spiritually-adapted outreach program in the mosque setting can help reduce addiction related stigma in Muslim communities.
Assuntos
Comportamento Aditivo , Transtornos Mentais , Adulto , Canadá , Humanos , Islamismo , Transtornos Mentais/terapia , Estigma SocialRESUMO
OBJECTIVE: Identifying modifiable predictors of outcomes following treatment for eating disorders may help to tailor interventions to patients' individual needs, improve treatment efficacy, and develop new interventions. The goal of this meta-analysis was to quantify the association between pretreatment motivation and posttreatment changes in eating disorder symptomology. METHOD: We reviewed 196 longitudinal studies reporting on change on indices of overall eating-disorder symptomatology, weight gain, binge-eating, vomiting, anxiety/depression, and treatment adherence. Meta-analyses were performed using two complementary approaches: (a) combined probability analysis using the added Z's method; (b) effect size analyses. Using random-effect models, effect sizes were pooled when there were at least three studies with the same type of statistical design and reporting statistics on the same outcome. Heterogeneity in study outcome was evaluated using Q and I2 statistics. Studies were reviewed qualitatively when the number of studies or reported data were insufficient to perform a meta-analysis. RESULTS: Forty-two articles were included. Although samples and treatments differed substantially across studies, results across studies were remarkably consistent. Both combined-probability and effect-size analyses indicated positive effects of pretreatment motivation on improvement in general eating-disorder symptoms (Cohen's r = .17), and an absence of effects on anxiety/depression symptoms. Remaining outcome indices were subject to selective reporting and/or small sample size bias. DISCUSSION: Our findings underscore the importance of incorporating treatment engagement approaches in the treatment of eating disorders. Optimal reporting of study findings and improving study quality would improve future efforts to obtain an in-depth understanding of the relationship between motivation and eating disorder symptoms.
Assuntos
Transtornos da Alimentação e da Ingestão de Alimentos/terapia , Motivação/fisiologia , Adolescente , Adulto , Feminino , Humanos , Estudos Longitudinais , Masculino , Resultado do Tratamento , Adulto JovemRESUMO
To determine the prevalence rates and characteristics of past-year mental health consultation for Ontario's adult (18 + years old) immigrant populations. The Canadian Community Health Survey (CCHS) 2012 was used to calculate the prevalence rates of past-year mental health consultation by service provider type. Characteristics associated with mental health consultation were determined by carrying out multivariable logistic regression analysis on merged CCHS 2008-2012 data. Adult immigrant populations in Ontario (n = 3995) had lower estimated prevalence rates of past-year mental health consultation across all service provider types compared to Canadian-born populations (n = 14,644). Amongst those who reported past-year mental health consultation, 57.89% of Ontario immigrants contacted their primary care physician, which was significantly higher than the proportion who consulted their family doctor from Canadian-born populations (45.31%). The factors of gender, age, racial/ethnic background, education level, working status, food insecurity status, self-perceived health status, smoking status, alcohol drinking status, years since immigration, and age at time of immigration were significantly associated with past-year mental health consultation for immigrant populations. Ontario's adult immigrant populations most commonly consult their family doctor for mental health care. Potential exists for expanding the mental health care role of primary care physicians as well as efforts to increase accessibility of specialized mental health services. Integrated, coordinated care where primary care physicians, specialized mental health professionals, social workers, and community educators, etc. working together in a sort of "one-stop-shop" may be the most effective way to mitigate gaps in the mental health care system. In order to effectively tailor mental health policy, programming, and promotion to suit the needs of immigrant populations initiatives that focus on the connection between physical and mental health and migration variables such as length of stay in Canada, years since immigration, and other important migration variables (beyond the scope of the CCHS which require further study) need to be developed. Examination of the social determinants of mental health is critical to understand how we can best serve the mental health needs of Ontario's immigrant populations.
Assuntos
Serviços Comunitários de Saúde Mental/estatística & dados numéricos , Emigrantes e Imigrantes/estatística & dados numéricos , Pessoal de Saúde/estatística & dados numéricos , Transtornos Mentais/terapia , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Adolescente , Adulto , Idoso , Emigrantes e Imigrantes/psicologia , Etnicidade/estatística & dados numéricos , Feminino , Inquéritos Epidemiológicos , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Ontário/etnologia , Médicos de Família/estatística & dados numéricos , Adulto JovemRESUMO
Tellurium (Te) is a semiconductor and is frequently doped with copper, tin, gold or silver. It is also used to color glass and ceramics and is one of the primary ingredients in blasting caps. Te is little known about its biological activity but it is well known for toxic to human and animals. It has inhibited the lipids profiles and oxidative stress in the brain of the mice. Sodium tellurite 4.15, 8.3 and 16.6 mg/kg (1/20, 1/10 and 1/5 of LD50, respectively) was given to male Wistar rats orally in saline for a period of 15 days. On day 16, the blood was collected and the livers were dissected out for biochemical assays. The hepatotoxicity biomarkers [biliru- bin, aspartate aminotransferase (AST), alanine transaminase (ALT), and alkaline phosphatase (ALP)] were ele- vated significantly and dose dependently in the serum of Te treated groups as compared to control group. The content of thiobarbituric acid reactive substances in Te treated groups was increased significantly and dose- dependently as compared to control group. Conversely, the content of glutathione and activities of antioxidant enzymes (glutathione peroxidase, glutathione reductase, glutathione-S-transferase, superoxide dismutase and catalase) were decreased significantly in Te treated groups as compared to control group. No data of effect of inorganic Te compounds on the liver toxicity of rats are available. The aim of the present study was to evalu- ate the hepatotoxicity of inorganic Te compounds. In conclusion, Te accelerated hepatotoxicity and oxidative stress in liver tissue of rats.
Assuntos
Doença Hepática Induzida por Substâncias e Drogas/etiologia , Telúrio/toxicidade , Animais , Doença Hepática Induzida por Substâncias e Drogas/metabolismo , Relação Dose-Resposta a Droga , Masculino , Estresse Oxidativo/efeitos dos fármacos , Ratos , Ratos WistarRESUMO
Tellurium (Te) is a semiconductor and is frequently doped with copper, tin, gold or silver. It is also used to color glass and ceramics and is one of the primary ingredients in blasting caps. Little is known about Te biological activity but it is well known for toxicity to human and animals. It has inhibited the lipids profiles and oxidative stress in the brain of mice. Sodium tellurite 4.15, 8.3 and 16.6 mg/kg (1/20, 1/10 and 1/5 of LD50, respectively) was given to male Wistar rats orally in saline for a period of 15 days. On day 16, the blood was collected and the livers were dissected out for biochemical assays. The hepatotoxicity biomarkers [bilirubin, aspartate aminotransferase (AST), alanine transaminase (ALT) and alkaline phosphatase (ALP)] were elevated significantly and dose dependently in the serum of Te treated groups as compared to control group. The content of thiobarbituric reactive substances in Te treated groups was increased significantly and dose-dependently as compared to control group. Conversely, the content of glutathione and activities of antioxidant enzymes (glutathione peroxidase, glutathione reductase, glutathione-S-transferase, superoxide dismutase and catalase) were decreased significantly in Te treated groups as compared to control group. No data of inorganic Te compounds on the liver toxicity of rats are available. The aim of the present study was to evaluate the hepatotoxicity of inorganic Te compound. In conclusion, Te accelerated hepatotoxicity and oxidative stress in liver tissue of rats.
Assuntos
Doença Hepática Induzida por Substâncias e Drogas/patologia , Telúrio/toxicidade , Alanina Transaminase/sangue , Fosfatase Alcalina/sangue , Animais , Aspartato Aminotransferases/sangue , Doença Hepática Induzida por Substâncias e Drogas/enzimologia , Relação Dose-Resposta a Droga , Masculino , Estresse Oxidativo/efeitos dos fármacos , Ratos , Ratos Wistar , Telúrio/administração & dosagemRESUMO
This study explored the impact of age at time of immigration on mental health in Canada. The Canadian Community Health Survey (CCHS) 2011 was analyzed to determine prevalence rates for mood disorders for those who immigrated during early childhood, middle childhood, adolescence, and adulthood. Multivariable logistic regression analysis was carried out on pooled CCHS 2007-2011 data to calculate risk of mood disorders. Those who immigrated during early childhood (before the age of six) had a significantly higher prevalence rate of mood disorders (6.83 %, 95 % CI 6.77-6.89) compared to those who immigrated later in life (4.83-4.88 %, 95 % CI 4.56-4.93). Immigrating during early childhood was also associated with elevated risk of mood disorders (OR 1.40, 95 % CI 1.04-1.88) compared to those who immigrated as adults after adjusting for key factors. Mental health services need to consider the factors associated with early childhood migration and the implications for early intervention programming.
Assuntos
Emigrantes e Imigrantes/psicologia , Transtornos do Humor/etiologia , Adolescente , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Canadá/epidemiologia , Criança , Pré-Escolar , Estudos Transversais , Emigração e Imigração , Feminino , Inquéritos Epidemiológicos , Humanos , Lactente , Recém-Nascido , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Transtornos do Humor/epidemiologia , Análise Multivariada , Razão de Chances , Prevalência , Fatores de Risco , Adulto JovemRESUMO
Inflammatory process has a fundamental role in the pathogenesis of Alzheimer's disease and insoluble amyloid beta deposits and neurofibrillary tangles provide the obvious stimuli for inflammation. The present study demonstrate the effect of pretreatment of 1,8-cineole (Cin) on inflammation induced by Aß(25-35) in differentiated PC12 cells. The cells were treated with Cin at different doses for 24 h and then replaced by media containing Aß(25-35) for another 24 h. The cell viability was decreased in Aß(25-35) treated cells which was significantly restored by Cin pretreatment. Cin successfully reduced the mitochondrial membrane potential, ROS and NO levels in Aß(25-35) treated cells. Cin also lowered the levels of proinflammatory cytokines TNF-α, IL-1ß and IL-6 in Aß(25-35) treated cells. Moreover, Cin also succeeded in lowering the expression of NOS-2, COX-2 and NF-κB. This study suggests the protective effects of Cin on inflammation and provides additional evidence for its potential beneficial use in therapy as an anti-inflammatory agent in neurodegenerative disease.
Assuntos
Doença de Alzheimer/patologia , Cicloexanóis/farmacologia , Inflamação/prevenção & controle , Monoterpenos/farmacologia , Peptídeos beta-Amiloides/fisiologia , Animais , Citocinas/metabolismo , Eucaliptol , Potencial da Membrana Mitocondrial/efeitos dos fármacos , Estresse Oxidativo , Células PC12 , Fragmentos de Peptídeos/fisiologia , Ratos , Espécies Reativas de Oxigênio/metabolismoRESUMO
BACKGROUND: South Asian populations are the largest visible minority group in Canada; however, there is very little information on the mental health of these populations. The objective of this study was to determine the prevalence rates and characteristics of mental health outcomes for South Asian first-generation immigrant and second-generation Canadian-born populations. METHODS: The Canadian Community Health Survey (CCHS) 2011 was used to calculate the estimated prevalence rates of the following mental health outcomes: mood disorders, anxiety disorders, fair-poor self-perceived mental health status, and extremely stressful life stress. The characteristics associated with these four mental health outcomes were determined through multivariate logistic regression analysis of merged CCHS 2007-2011 data. RESULTS: South Asian Canadian-born (3.5%, 95% CI 3.4-3.6%) and South Asian immigrant populations (3.5%, 95% CI 3.5-3.5%) did not vary significantly in estimated prevalence rates of mood disorders. However, South Asian immigrants experienced higher estimated prevalence rates of diagnosed anxiety disorders (3.4%, 95% CI 3.4-3.5 vs. 1.1%, 95% CI 1.1-1.1%) and self-reported extremely stressful life stress (2.6%, 95% CI 2.6-2.7% vs. 2.4%, 95% CI 2.3-2.4%) compared to their Canadian-born counterparts. Lastly, South Asian Canadian-born populations had a higher estimated prevalence rate of poor-fair self-perceived mental health status (4.4%, 95% CI 4.3-4.5%) compared to their immigrant counterparts (3.4%, 95% CI 3.3-3.4%). Different profiles of mental health determinants emerged for South Asian Canadian-born and immigrant populations. Female gender, having no children under the age of 12 in the household, food insecurity, poor-fair self-rated health status, being a current smoker, immigrating to Canada before adulthood, and taking the CCHS survey in either English or French was associated with greater risk of negative mental health outcomes for South Asian immigrant populations, while not being currently employed, having a regular medical doctor, and inactive physical activity level were associated with greater risk for South Asian Canadian-born populations. CONCLUSIONS: Mental health outreach programs need to be cognizant of the differences in prevalence rates and characteristics of mental health outcomes for South Asian immigrant and Canadian-born populations to better tailor mental health services to be responsive to the unique mental health needs of South Asian populations in Canada.
Assuntos
Povo Asiático , Emigrantes e Imigrantes , Emigração e Imigração , Transtornos Mentais/etnologia , Saúde Mental/etnologia , Adulto , Sudeste Asiático/etnologia , Canadá/epidemiologia , Emprego , Feminino , Nível de Saúde , Humanos , Masculino , Serviços de Saúde Mental , Pessoa de Meia-Idade , Prevalência , AutorrelatoRESUMO
PURPOSE: Matrix metalloproteinases (MMPs) play an important role in remodeling of the extracellular matrix during development and growth of various tissues including the eye. Various functional polymorphisms in MMPs have been implicated in the pathogenesis of different types of glaucoma. The aim of the present study was to investigate the role of various polymorphisms in Pakistani patients with glaucoma. METHODS: The present case-control study included 112 patients with primary open-angle glaucoma (POAG), 82 patients with primary angle closure glaucoma (PACG), and 118 control subjects. Genotyping of polymorphisms was done using PCR followed by restriction fragment length polymorphism analysis. RESULTS: A significant difference in the genotype frequencies of MMP1 rs1799750 (-1607 1G/2G) was observed between the patients with POAG and the control subjects (p = 0.001). This was attributed to the female subjects (p < 0.001), while the association was not significant in male subjects (p > 0.47). In addition, a significant difference was observed in genotype frequencies of MMP9 rs17576 (c.836A>G) in patients with PACG compared to the control subjects (p < 0.001), which after gender stratification remained significant in men (p = 0.009) but not in women (p = 0.14). No significant associations were found for MMP7 (c.-181T>C) and MMP9 (c.-1562C>T) polymorphisms. CONCLUSIONS: Our data suggest that the MMP1 rs1799750 (-1607 1G/2G) and MMP9 rs17576 polymorphisms might be of value for further study as potential gender-dependent risk factors for developing POAG and PACG, respectively, in Pakistan.
Assuntos
Glaucoma de Ângulo Fechado/enzimologia , Glaucoma de Ângulo Fechado/genética , Glaucoma de Ângulo Aberto/enzimologia , Glaucoma de Ângulo Aberto/genética , Metaloproteinase 1 da Matriz/genética , Metaloproteinase 9 da Matriz/genética , Polimorfismo Genético , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Paquistão , Fatores de RiscoRESUMO
Centella asiatica has been used as psychoactive and antioxidant herbal medicine since ancient time. The present study was design to evaluate the preventive role of ethanolic extract of C. asiatica in middle cerebral artery occlusion (MCAO) in rats. Male Wistar rats were gavaged orally with C. asiatica extract (100, 200 and 300 mg/kg body weight once daily) for 21 days and thereafter subjected to right MCAO for 2 h followed by 22-h reperfusion. Brain injury was evaluated by 2,3,5-triphenyltetrazolium chloride and hematoxylin and eosin staining. Behavioural outcomes as neurological deficit, rota rod test, and grip strength were assessed. In addition, lipid peroxidation, enzymatic and non enzymatic antioxidants were analyzed to assess the oxidative stress. Our results revealed that C. asiatica administration greatly improved neurobehavioral activity and diminished infarction volume along with the restored histological morphology of brain in MCAO rats. Furthermore, supplementation with this extract to MCAO group has reduced the level of thiobarbituric acid reactive species, restored glutathione content and augmented the activities of antioxidant enzymes-catalase, glutathione peroxidase, glutathione reductase, glutathione-S-transferase and superoxide dismutase in a dose-dependent manner in ischemic rats. The remarkable antioxidant activity of C. asiatica may be attributed to its bioactive triterpenes, asiatic acid, asiaticoside, madecassic acid and madecosside and may be translated to clinical level for prevention of ischemic stroke.
Assuntos
Química Encefálica/efeitos dos fármacos , Infarto da Artéria Cerebral Média , Doenças do Sistema Nervoso/tratamento farmacológico , Fármacos Neuroprotetores/administração & dosagem , Triterpenos/administração & dosagem , Animais , Catalase/metabolismo , Centella , Infarto Cerebral/tratamento farmacológico , Infarto Cerebral/etiologia , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Glutationa/metabolismo , Glutationa Peroxidase/metabolismo , Glutationa Transferase/metabolismo , Força da Mão/fisiologia , Infarto da Artéria Cerebral Média/complicações , Infarto da Artéria Cerebral Média/tratamento farmacológico , Infarto da Artéria Cerebral Média/metabolismo , Peroxidação de Lipídeos/efeitos dos fármacos , Masculino , Músculo Esquelético/efeitos dos fármacos , Doenças do Sistema Nervoso/etiologia , Extratos Vegetais , Ratos , Ratos Wistar , Superóxido Dismutase/metabolismo , Fatores de TempoRESUMO
Oxidative loads in the brain are involved in age related impairments like learning and memory as well as neurodegeneration. Taurine, the most abundant free amino acid in humans has many potential health benefits through its anti-oxidant and anti-inflammatory properties. Therefore, we investigated the neuroprotective potential of taurine on oxidative stress, neuronal loss and memory impairments in streptozotocin model of cognitive impairments in rats. The cognitive impairment was developed by giving single intracerebroventricular (ICV) injection of streptozotocin (STZ) 3 mg/kg body weight bilaterally. An increased latency and path length was observed in ICV-STZ group animals as compared to sham group animals and these were inhibited significantly in STZ group pre-treated with taurine (50 mg/kg body weight orally once daily for 15 days). Moreover, the significantly depleted content of GSH and elevated level of thiobarbituric acid reactive substances (TBARS) in ICV-STZ group animals were protected significantly with pre-treatment of taurine. The activity of antioxidant enzymes, glutathione peroxidase, glutathione reductase, glutathione-S-transferase, catalase, and superoxide dismutase was decreased in STZ group as compared to sham group and pre-treatment of STZ group with taurine has protected their activities significantly. Furthermore, the increased activity of acetylcholine esterase and decreased expression of choline acetyl transferase were attenuated by the pre-treatment of taurine. Taurine also protected the morphology of the hippocampal pyramidal neurons. This study concludes that the prophylactic intervention of taurine may be used to prevent the deterioration of cognitive functions and neurobehavioral activities, often associated with the generation of free radicals.
Assuntos
Doença de Alzheimer/tratamento farmacológico , Doença de Alzheimer/metabolismo , Estresse Oxidativo/efeitos dos fármacos , Taurina/uso terapêutico , Acetilcolinesterase/efeitos dos fármacos , Acetilcolinesterase/metabolismo , Doença de Alzheimer/induzido quimicamente , Animais , Hipocampo/efeitos dos fármacos , Hipocampo/metabolismo , Imuno-Histoquímica , Infusões Intraventriculares , Masculino , Aprendizagem em Labirinto/efeitos dos fármacos , Aprendizagem em Labirinto/fisiologia , Ratos , Ratos Wistar , Estreptozocina/administração & dosagemRESUMO
Azadirachta indica Linn. (Meliaceae) has been used from ancient times as a remedy for various ailments. The present study was designed to investigate the antioxidant and anti-apoptotic properties of A. indica seed extract (ASE) in transient middle cerebral artery occlusion (MCAO) rat model. Antioxidant potential of ASE was determined in vitro. Further, ASE was evaluated against neurological deficits, histological alterations (TTC, CV and H&E) and oxidative damage (TBARS, GSH and nitrite) in MCAO rats. Moreover, caspase-3 and -9 were analyzed to evaluate the anti-apoptotic activity of ASE. ASE has shown potent in vitro reducing power (126.2 mg AsAE/g extract) and free radical scavenging activities (DPPH 171.0 and NO 176.0 µg/ml). Furthermore, ASE inhibited oxidative stress and decreased the activities of caspase-3 (26.7 %, p < 0.05) and caspase-9 (31.2 %, p < 0.01) thus, reduced neuronal loss in MCAO rats. Our data revealed that ASE has potent antioxidant and anti-apoptotic properties, and may be explored for its active constituents against neurodegenerative diseases.
Assuntos
Azadirachta , Isquemia Encefálica/tratamento farmacológico , Fitoterapia , Extratos Vegetais/uso terapêutico , Traumatismo por Reperfusão/tratamento farmacológico , Animais , Apoptose/efeitos dos fármacos , Encéfalo/efeitos dos fármacos , Encéfalo/patologia , Isquemia Encefálica/patologia , Modelos Animais de Doenças , Masculino , Estresse Oxidativo/efeitos dos fármacos , Transtornos Psicomotores/tratamento farmacológico , Ratos , Ratos Wistar , Traumatismo por Reperfusão/patologiaRESUMO
The Peel Region of Toronto, Canada is home to over a third of the province's South Asian population. Youth are at a vulnerable time period in terms of their mental health. South Asian youth populations may face additional challenges to their mental health such as acculturative stress, intergenerational conflict, and racism and discrimination. This qualitative study set out to understand the mental health concerns and service access barriers experienced by South Asian youth populations in the Peel Region of Toronto, Canada from the perspective of mental health service providers. In-depth semi-structured interviews were carried out with mental health service providers (n = 22) who work with South Asian youth living in Peel Region. Thematic analysis was used to elucidate themes related to mental health stressors and service access barriers experienced by youth. According to mental health service providers, South Asian youth navigate a number of unique stressors related to the domains of culture, religion, and family dynamics, experiences of discrimination, the impact of migration, beliefs around mental illness and help-seeking, help-seeking trajectories and therapy recommendations, and lastly, sex differences. Mental health service providers outlined steps needed to effectively address the unique mental health challenges, best practice guidelines, and recommendations for working with South Asian youth, families, and communities to provide a practical and nuanced overview on how a multi-level strategy for mental health care can effectively meet the needs of South Asian youth populations.
Assuntos
Emigrantes e Imigrantes , Transtornos Mentais , Serviços de Saúde Mental , Humanos , Masculino , Feminino , Adolescente , Saúde Mental , Canadá/epidemiologia , Transtornos Mentais/terapia , Pesquisa QualitativaRESUMO
BACKGROUND: This study seeks to examine if and how the COVID-19 pandemic has prompted changes in the use and uptake of a national out-of-hours (OOH) telephone triage service by younger and older patients seeking non-urgent unplanned care in Flanders (Belgium). METHODS: A descriptive study was conducted using registry data obtained from the 1733 OOH telephone triage service in a Flemish region of Belgium. All calls received between 1 January 2019 and 31 December 2020 were analyzed. RESULTS: A significant association was found between patient age and period of call (χ2 = 594.54, p < .001). Calls made to the 1733 OOH telephone triage service were significantly less likely to be dispatched to a higher level of urgency by operators compared to calls made before the COVID-19 period (OR = 0.80, 95% CI [0.74-0.85]). While calls concerning older adults were significantly more likely to be dispatched to a higher level of urgency by operators compared to younger adults (regardless of period of call) (65 to 74 yrs: OR = 5.75, 95% CI [4.86-6.80]; 75 to 84 yrs: OR = 15.21, 95% CI [13.18-17.56]; ≥ 85 yrs: OR = 28.77, 95% CI [25.01-33.09]), only 6.7% of all COVID-19 related calls involved older adults over 65 years of age. CONCLUSION: Findings showed that there was a general decline in the number of calls dispatched to a higher level of urgency by operators during the COVID-19 period but that there were differences in the use and uptake of these services by younger and older age segments.
Assuntos
Plantão Médico , COVID-19 , Humanos , Idoso , Triagem , Bélgica/epidemiologia , Pandemias , Telefone , COVID-19/epidemiologiaRESUMO
PURPOSE: To describe a novel mutation in the fibrillin-1 (FBN1) gene in a large Pakistani family with autosomal dominant Marfan syndrome (MFS). METHODS: Blood samples were collected of 11 family members affected with Marfan syndrome, and DNA was isolated by phenol-extraction. The coding exons of FBN1 were analyzed by polymerase chain reaction (PCR) and direct sequencing. One hundred-thirty controls were screened for a mutation in the FBN1 gene that was identified in this family by restriction fragment length polymorphism (RFLP) analysis. RESULTS: A novel heterozygous missense mutation c.2368T>A; p.Cys790Ser was observed in exon 19. This mutation substitutes a highly conserved cysteine residue by serine in a calcium binding epidermal growth factor-like domain (cbEGF) of FBN1. This mutation was present in all affected members and absent from unaffected individuals of the family in addition to 130 healthy Pakistani controls. Interestingly all affected family members presented with ectopia lentis, myopia and glaucoma, but lacked the cardinal cardiovascular features of MFS. CONCLUSIONS: This is a first report of a mutation in FBN1 in MFS patients of Pakistani origin. The identification of a FBN1 mutation in this family confirms the diagnosis of MFS patients and expands the worldwide spectrum of FBN1 mutations.
Assuntos
Ectopia do Cristalino/genética , Glaucoma/genética , Síndrome de Marfan/genética , Proteínas dos Microfilamentos/genética , Mutação de Sentido Incorreto , Adolescente , Adulto , Estudos de Casos e Controles , Criança , Consanguinidade , Ectopia do Cristalino/complicações , Ectopia do Cristalino/patologia , Éxons , Feminino , Fibrilina-1 , Fibrilinas , Genes Dominantes , Glaucoma/complicações , Glaucoma/patologia , Heterozigoto , Humanos , Masculino , Síndrome de Marfan/complicações , Síndrome de Marfan/patologia , Pessoa de Meia-Idade , Paquistão , Linhagem , Polimorfismo de Fragmento de Restrição , Análise de Sequência de DNARESUMO
Epidemiologic studies have shown that foods rich in polyphenols, such as flavonoids, can lower the risk of ischemic disease; however, the mechanism of protection has not been clearly investigated. In this study, we hypothesized that pretreatment effect of catechin hydrate (CH) on functional outcome, neuronal damage and on secondary injuries in the ischemic brain of rats. To test this hypothesis, male Wistar rats were pretreated with CH (20 mg/kg b.wt) for 21 days and then subjected to 2 h middle cerebral artery occlusion (MCAO) followed by 22 h of reperfusion. After 2 h MCAO/22 h reperfusion, neurological deficit, infarct sizes, activities of antioxidant enzymes and cytokines level were measured. Immunohistochemistry and western blot were used to analyse the expression of glial fibrillary acidic protein (GFAP), inducible nitric oxide (iNOS) and NF-kB in ischemic brain. The administration of CH showed marked reduction in infarct size, reduced the neurological deficits, suppressed neuronal loss and downregulate the iNOS, GFAP and NF-kB expression in MCAO rats. A significantly depleted activity of antioxidant enzymes and content of glutathione in MCAO group were protected significantly in MCAO group pretreated with CH. Conversely, the elevated level of thiobarbituric acid reactive species and cytokines in MCAO group was attenuated significantly in CH pretreated group when compared with MCAO group. The results indicated that CH protected the brain from damage caused by MCAO, and this effect may be through downregulation of NF-kB expression.