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1.
Brain Sci ; 11(12)2021 Nov 30.
Artigo em Inglês | MEDLINE | ID: mdl-34942888

RESUMO

Stress during the pandemic has had an impact on the mental health of healthcare professionals (HCPs). However, little is known about coping and "maladaptive" coping behaviours of this population. This study investigates "maladaptive" coping behaviours and their correlation with stress, anxiety and insomnia of Italian HCPs during the pandemic. It reports on a cross-sectional, descriptive and correlational study based on a survey of 1955 Italian HCPs. Overall participants reported increases in cigarette smoking, time spent online and video playing. Overall reported alcohol consumption decreased but increased in those reporting drinking more than once a week. Those reporting starting smoking during the pandemic were found to have higher SAS and PSS scores. Those reporting being online for 3 or more hours were found to have higher ISS scores. Doctors who reported playing video games were found to have higher PSS, ISS and SAS scores whilst nurses who reported playing video games were found to have higher ISS scores. Doctors who reported playing for longer than one hour had higher PSS scores. Online behaviours may be a coping behaviour of HCPs affected by the pandemic. However, this is an underexplored area for the wellbeing of HCPs. These deficits need to be addressed going forward.

2.
J Nurs Manag ; 29(5): 989-997, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33316108

RESUMO

AIM: The aim of this research was to explore both older adults' and health care professionals' experience and views of sialorrhoea management practices in older adult residential care settings. BACKGROUND: Sialorrhoea is quite a bothersome symptom among patients with certain neurological conditions. The complexity of sialorrhoea and its complications can be quite challenging for health care professionals. In the management of sialorrhoea, a multidisciplinary approach is proposed as an effective way of sialorrhoea management. METHODS: Thematic analysis of collected data via semi-structured qualitative interviews with five focus groups involving 28 multidisciplinary health care members and 1 patient. RESULTS: The older adult and multidisciplinary health care professionals' view of the management of sialorrhoea in residential care settings were established under three main themes: 1) 'Sialorrhoea compromising patient's dignity', 2) 'Ad hoc local management' and 3) 'Further integration of care required'. CONCLUSION: At present, there have been no comprehensive multidisciplinary sialorrhoea management strategies to meet the various needs of older adults with sialorrhoea. IMPLICATION FOR NURSING MANAGEMENT: It is important to minimize the negative impact of sialorrhoea on the patients. The recognition of issues associated with sialorrhoea provides constructive scope for the health care professionals to further investigate and develop more effective integrated sialorrhoea care protocols.


Assuntos
Sialorreia , Idoso , Atenção à Saúde , Grupos Focais , Pessoal de Saúde , Humanos , Pesquisa Qualitativa , Sialorreia/etiologia , Sialorreia/terapia
3.
J Clin Nurs ; 28(23-24): 4190-4206, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31318993

RESUMO

AIMS AND OBJECTIVES: To review published literature pertaining to the management of sialorrhoea while also highlighting the significance of the multidisciplinary approach. BACKGROUND: Sialorrhoea is a common and troublesome problem among certain neurological patients. It is distressing for patients and caregivers, and can be challenging for healthcare professionals. Various sialorrhoea management approaches have been documented. However, there is no clear consensus on best management practices. Therefore, it is necessary to systematically review and synthesise various approaches so as to provide an understanding of the efficacy of management approaches. DESIGN: Systematic literature review using PRISMA checklist (see Appendix S1). METHOD: Five databases (ScienceDirect, Wiley Online Library, CINAHL, Cochrane Library and PubMed) were searched (years 2001-2018) following inclusion criteria. Out of 1,294 identified records, 29 studies met the inclusion criteria. RESULTS: Various management approaches identified, ranging from noninvasive, such as speech therapy aiming to enhance swallowing behaviour, to invasive treatment including anticholinergic medication, botulinum toxin injection and surgical techniques. However, in the majority of cases, there is no scientific evidence-based management protocol leading to favourable results, and the evidence base for intervention effectiveness remains weak. CONCLUSIONS: The multifactor nature of sialorrhoea and its associated complications presents challenges for the medical care team. None of the management strategies stand alone as the best modality; therefore, it is proposed that management strategies follow a multidisciplinary approach to meet the diverse needs of patients. RELEVANCE TO CLINICAL PRACTICE: A comprehensive understanding of different sialorrhoea management approaches will enable healthcare professionals to identify the signs and symptoms regarding sialorrhoea, and to assist in effective management implementation. This will help to improve the management of sialorrhoea, hence, to improve quality of life of patients and provide formative scope to the development of an integrated care pathway.


Assuntos
Sialorreia/enfermagem , Transtornos de Deglutição/enfermagem , Humanos , Qualidade de Vida , Sialorreia/tratamento farmacológico , Sialorreia/cirurgia
4.
Eur J Cancer Care (Engl) ; 28(5): e13124, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31222849

RESUMO

OBJECTIVE: The aim of this study is to examine the relationship of empathy and professional quality of life in cancer healthcare professionals. METHODS: A Professional Quality of Life instrument measuring compassion satisfaction and compassion fatigue, and the Interpersonal Reactivity Index measuring empathy were distributed to healthcare professionals working in cancer care in the Republic of Ireland. Final analysis was conducted on 117 participants. RESULTS: A quarter of participants experience high levels of compassion satisfaction, and a quarter are at risk of compassion fatigue. A positive correlation was found between personal distress and compassion fatigue, and a negative correlation was found between personal distress and compassion satisfaction. A positive correlation was found between empathic concern and secondary traumatic stress. CONCLUSION: These findings suggest that healthcare professionals working in cancer care are at risk of compassion fatigue. Also, healthcare professionals working in cancer care experience personal distress that may impact negatively on professional quality of life. Implications for practice include a need to identify those HCPs who are at risk of compassion fatigue. The implication for further research suggests further exploration of the impact of personal distress felt by cancer healthcare professionals during empathic engagement.


Assuntos
Pessoal Técnico de Saúde/psicologia , Esgotamento Profissional/psicologia , Fadiga de Compaixão/psicologia , Empatia , Neoplasias/terapia , Enfermeiras e Enfermeiros/psicologia , Oncologistas/psicologia , Adulto , Pessoal Técnico de Saúde/estatística & dados numéricos , Esgotamento Profissional/epidemiologia , Fadiga de Compaixão/epidemiologia , Estudos Transversais , Feminino , Pessoal de Saúde/psicologia , Pessoal de Saúde/estatística & dados numéricos , Humanos , Irlanda/epidemiologia , Satisfação no Emprego , Masculino , Pessoa de Meia-Idade , Enfermeiras e Enfermeiros/estatística & dados numéricos , Enfermagem Oncológica/estatística & dados numéricos , Adulto Jovem
5.
BMC Cancer ; 18(1): 1022, 2018 Oct 22.
Artigo em Inglês | MEDLINE | ID: mdl-30348115

RESUMO

BACKGROUND: Colorectal cancer is a significant issue internationally, with over 1.3 million people diagnosed annually. Survival rates are increasing as treatments improve, although physical symptoms can persist despite eradication of the tumour. In order to optimize survivorship care, further research is warranted in relation to symptom burden. Therefore, the objectives of this study are to (i) investigate frequency of physical symptoms in colorectal cancer survivors (ii) identify which symptoms occur together (iii) examine the associations between demographic and clinical variables, and symptoms. METHODS: Participants nine months to three years post diagnosis were identified from the population-based National Cancer Registry Ireland. Respondents completed the EORTC QLQ-C30 and EORTC QLQ-CR29. Reported physical symptom frequencies were transformed into continuous scale variables, which were then analysed using one way analysis of variance, general linear modelling and Spearman rank correlations. RESULTS: There were 496 participants. Fatigue, insomnia and flatulence were the most frequent symptoms, with ≥20% of respondents reporting these to be often present in the previous week. Eight other symptoms were experienced often by 10-20% of respondents. At least one of these eleven most common symptoms was experienced frequently by almost every respondent (99%). 66% of respondents experienced at least two of these symptoms together, and 16% experienced five or more together. Current stoma was the single most common variable associated with increased symptom scores, although statistically significant relationships (p ≤ 0.05) between symptom frequency scores and clinical/demographic variables were generally weak (R-sq value ≤0.08). CONCLUSION: Findings may inform targeted interventions during the nine month to three year post diagnosis timeframe, which would enable supported self-management of symptoms.


Assuntos
Neoplasias Colorretais/mortalidade , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias Colorretais/diagnóstico , Neoplasias Colorretais/epidemiologia , Feminino , Humanos , Irlanda , Masculino , Pessoa de Meia-Idade , Vigilância da População , Sistema de Registros , Fatores de Risco , Avaliação de Sintomas
6.
J Pharm Pharm Sci ; 21(1): 30049, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30011259

RESUMO

PURPOSE: Codeine containing medicines can carry a number of health risks associated with the increase in reported misuse and dependence, however they are still readily available over the counter (OTC) in many countries. The aim of this novel study was to report on the results of a survey of customers purchasing OTC codeine containing medicinal products at pharmacies in Ireland, South Africa and England; exploring use, sources of knowledge and perception of risks. METHODS: The study design was an exploratory cross sectional survey. It involved a customer self-administered questionnaire at the point of purchase (n=1230).  Relationships between categorical variables were analysed using Pearson chi-square for bivariate analysis. Continuous scale variables were analysed using one way analysis of variance. RESULTS: In Ireland 6% stated they purchased codeine containing products weekly, in South Africa 13% and in England 16%. In Ireland and England women are more likely to view codeine containing products as harmful. In England older adults are more likely to perceive codeine containing products as harmful. A higher proportion of customers in South Africa opposed restricting codeine containing products to prescription only when compared with people in Ireland and England. CONCLUSIONS: Codeine containing products are widely purchased and used in all three jurisdictions. Whilst the majority of customers appear to have some awareness and knowledge of risks, it does not materially impact on their purchasing behaviour with a substantial minority purchasing/using such products on a weekly basis. This regularity of purchase whilst indicative of the popularity of such products, may also be a potential indicator of misuse. Future research is needed in relation to cultural and gendered differences and targeted information giving and harm reduction initiatives for safe usage of these medicinal products.


Assuntos
Publicidade , Codeína/efeitos adversos , Codeína/economia , Uso Indevido de Medicamentos , Medicamentos sem Prescrição/efeitos adversos , Medicamentos sem Prescrição/economia , Transtornos Relacionados ao Uso de Opioides/tratamento farmacológico , Adulto , Idoso , Codeína/administração & dosagem , Codeína/uso terapêutico , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Medicamentos sem Prescrição/administração & dosagem , Medicamentos sem Prescrição/uso terapêutico , Medição de Risco , Inquéritos e Questionários , Adulto Jovem
8.
J Clin Nurs ; 26(15-16): 2274-2285, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-27322709

RESUMO

AIMS AND OBJECTIVES: To explore paediatric nurses' views of caring for infants who have suffered nonaccidental injury. BACKGROUND: Children less than two years of age are at greater risk of serious abuse than those in any other age group. An infant's physical and mental immaturity makes them especially vulnerable. Abuse in this age group is often caused by a parent who does not report the abuse. The experience of caring for abused children is recognised as being both personally and professionally challenging. However, despite the increased risk of serious or fatal injury, caring for these infants who have suffered abuse is relatively unexplored. DESIGN: A qualitative research design using purposive sampling was adopted. The setting for this research was a paediatric unit in Ireland. METHOD: Semi-structured interviews were conducted with 10 paediatric nurses and data were analysed using the framework approach. RESULTS: Paediatric nurses' views of caring for infants who have suffered a nonaccidental injury were established under four main themes: (1) 'Personal impact', (2) 'Professional roles', (3) 'Nurse-client relationship' and (4) 'Resources'. CONCLUSION: Findings highlighted that the experience for the nurse is complex. Personal emotions are evoked and the experience influenced reflection on their own lives. Communication with the parents of the infant is often difficult. Professional relationships were sometimes hindered by poor sharing of information. However, nurses strived to maintain their professionalism and to provide nursing care for the infant and their parents that was holistic. Paediatric nurses relied heavily on each other for support and their nursing experience was a valuable resource for managing nonaccidental injuries. RELEVANCE TO CLINICAL PRACTICE: The general consensus was that a nurse could never fully be prepared to care for an infant who had suffered a nonaccidental injury. However, recommendations for future practice and education are identified and include frequent and practical education sessions.


Assuntos
Atitude do Pessoal de Saúde , Maus-Tratos Infantis/psicologia , Enfermeiros Pediátricos/psicologia , Humanos , Lactente , Cuidado do Lactente , Recém-Nascido , Entrevistas como Assunto , Irlanda
9.
Int J Orthop Trauma Nurs ; 25: 48-53, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-27979662

RESUMO

Specialised DDH (developmental dysplasion of the hip) clinics are developing around Ireland but are, however, variable in how they are operated. A DDH clinic was set up in the South-east of Ireland in 2002 with the goal of achieving an integrated care pathway between the orthopaedic surgical team and nursing team, working to an explicit protocol while also fostering a strong collaboration with the ultrasound department. This paper aims to explore the effectiveness of this dedicated clinic in the Southeast of Ireland.


Assuntos
Luxação Congênita de Quadril/psicologia , Relações Pais-Filho , Satisfação do Paciente , Adulto , Instituições de Assistência Ambulatorial , Feminino , Luxação Congênita de Quadril/enfermagem , Luxação Congênita de Quadril/reabilitação , Humanos , Lactente , Recém-Nascido , Irlanda , Masculino , Inquéritos e Questionários
10.
J Clin Nurs ; 25(9-10): 1395-404, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-26991024

RESUMO

AIMS AND OBJECTIVES: To determine the changes in symptoms experienced by rectal cancer patients during preoperative chemoradiotherapy, with a specific focus on fatigue and to explore how symptoms impact the quality of life. BACKGROUND: Rectal cancer continues to be a healthcare issue internationally, despite advances in management strategies, which includes the administration of preoperative chemoradiotherapy to improve locoregional control. It is known that this treatment may cause adverse effects; however, there is a paucity of literature that specifically examines fatigue, symptoms and quality of life in this patient cohort. DESIGN: A prospective, quantitative correlational design using purposive sampling was adopted. METHODS: Symptoms and quality of life were measured with validated questionnaires in 35 patients at four time points. RESULTS: Symptoms that changed significantly over time as examined using rm-anova include fatigue, bowel function issues, nutritional issues, pain, dermatological issues and urinary function issues. Findings indicate that fatigue leads to poorer quality of life, with constipation, bloating, stool frequency, appetite loss, weight worry, nausea and vomiting, dry mouth and pain also identified as influencing factors on quality of life. CONCLUSION: Findings have highlighted the importance of thorough symptom assessment and management of patients receiving preoperative chemoradiotherapy, particularly midway through treatment, in order to optimise quality of life and minimise interruptions to treatment. RELEVANCE TO CLINICAL PRACTICE: Close monitoring of symptoms during preoperative chemoradiotherapy, particularly at week 4, will enable the implementation of timely interventions so that interruptions to treatment are prevented and the quality of life is optimised, which may hasten postoperative recovery times.


Assuntos
Qualidade de Vida , Neoplasias Retais/psicologia , Idoso , Idoso de 80 Anos ou mais , Quimiorradioterapia Adjuvante , Constipação Intestinal/etiologia , Fadiga/etiologia , Feminino , Humanos , Irlanda , Masculino , Pessoa de Meia-Idade , Náusea/etiologia , Medição da Dor , Período Pré-Operatório , Estudos Prospectivos , Neoplasias Retais/complicações , Neoplasias Retais/enfermagem , Neoplasias Retais/terapia , Inquéritos e Questionários , Vômito/etiologia
11.
Epilepsy Res ; 113: 11-8, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25986187

RESUMO

BACKGROUND: A challenge facing modern health care systems is to develop and implement new models of service that deliver increased capacity while providing a higher-quality, more cost-effective service within resource constraints. Incorporating the experience of people with epilepsy must be seen as central to the effectiveness of service design and delivery. This paper, therefore, reports the views of people with epilepsy with regards to health service delivery in Ireland. METHOD: A cross-sectional descriptive survey design involving both quantitative and qualitative items was administered to a convenience sample of one hundred and two people with epilepsy (n=102) attending an epilepsy specialist centre. RESULTS: Despite high levels of satisfaction with hospital and primary care, participants offered several suggestions to improve healthcare delivery, such as: less delay in accessing specialist care and hospital appointments; better communication; and easier access to investigatory services. Findings demonstrate that for people with epilepsy the burden of the disorder is substantial and complex encompassing social, psychological and structural difficulties. Poor information provision particularly among women is reported. Furthermore, a lack of empowerment in people with epilepsy is highlighted. CONCLUSION: This study has implications for the reform and development of epilepsy services in relation to practice, education and research. It provides a basis for an evaluation of current practice and identifies opportunities for future service reorganization to improve the quality and efficiency of healthcare provision.


Assuntos
Epilepsia/epidemiologia , Epilepsia/psicologia , Serviços de Saúde/estatística & dados numéricos , Educação de Pacientes como Assunto , Satisfação Pessoal , Adolescente , Adulto , Distribuição por Idade , Idoso , Estudos Transversais , Feminino , Serviços de Saúde/classificação , Inquéritos Epidemiológicos , Humanos , Irlanda/epidemiologia , Masculino , Pessoa de Meia-Idade , Admissão do Paciente/estatística & dados numéricos , Distribuição por Sexo , Inquéritos e Questionários , Adulto Jovem
12.
Clin J Oncol Nurs ; 18(3): E37-44, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24867122

RESUMO

Assessment of patients receiving radiotherapy for cancer is essential, with the ability to identify those who may be more likely to experience radiotherapy-related side effects noted as an important issue for nurses. Body mass, age, and radiation dose may be predictive factors for the development of such side effects. This review considers these factors and how nurses can use this evidence to inform their care, with results indicating that the dose of radiation, the site treated, and body mass index are predictive of toxicities that may develop. Increased awareness of these predictive factors will aid nurses in identifying patients at greater risk of developing radiation-related side effects. This will assist in guiding nursing interventions, as well as enabling the individualization of patient education, by placing greater emphasis on preventive measures for patients who are more vulnerable to the development of radiation-related toxicities.


Assuntos
Neoplasias/radioterapia , Radioterapia/efeitos adversos , Humanos , Neoplasias/enfermagem
13.
J Clin Nurs ; 23(17-18): 2491-502, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24329603

RESUMO

AIMS AND OBJECTIVES: To examine the pretreatment symptoms and symptom clusters that women awaiting breast cancer surgery are experiencing and the impact of these symptoms on their quality of life. BACKGROUND: Most women diagnosed with breast cancer will have surgery as a first-line treatment. The presence of presurgery symptoms may be significant in contributing to distress and impaired quality of life. While it seems that women with breast cancer may experience the symptoms of fatigue, pain, depression and sleep disturbance as a cluster, this has not yet been confirmed by empirical research in the presurgery time period. DESIGN: A multiple-point prospective longitudinal cohort panel design is used. METHODS: Presurgery symptoms and quality of life were assessed using the Hospital Anxiety and Depression Scale, Insomnia Severity Index, Functional Assessment of Cancer Therapy-Fatigue, Brief Pain Inventory and the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30(3). RESULTS: Participants (n = 94, age range 30-92) experienced symptoms prior to surgery, with pain being a more prevalent symptom (35%) than fatigue (32%), sleep disturbances (25·5%) or depression (11%). global quality of life was significantly impacted on by fatigue and showed a moderate correlation with emotional functioning and a weak correlation with physical and social functioning. Hierarchical cluster analysis identified the presence of five clusters with symptoms present in differing intensities in each cluster. CONCLUSION: In this cohort of women, healthy other than having a diagnosis of breast cancer, symptoms were impacting on quality of life. It is evident that clusters of symptoms are present presurgery that must be assessed and managed. RELEVANCE TO PRACTICE: Healthcare delivery systems must ensure that early symptoms are addressed effectively in the presurgery period to improve quality of life and reduce adverse outcomes postsurgery.


Assuntos
Neoplasias da Mama/psicologia , Qualidade de Vida , Transtornos do Sono-Vigília/psicologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/enfermagem , Análise por Conglomerados , Estudos de Coortes , Depressão/psicologia , Feminino , Humanos , Estudos Longitudinais , Pessoa de Meia-Idade , Período Pré-Operatório , Estudos Prospectivos , Psicometria , Transtornos do Sono-Vigília/enfermagem , Inquéritos e Questionários
14.
J Clin Nurs ; 23(3-4): 333-51, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24033769

RESUMO

AIMS AND OBJECTIVES: This paper presents a critical review of published literature detailing side effects of preoperative radiotherapy in patients with rectal cancer and the impact of their treatment on their quality of life which will assist in guiding nursing management in the future. BACKGROUND: Preoperative radiotherapy for rectal cancer leads to a number of side effects that have a negative influence on patients' quality of life. Although studies have investigated the various adverse effects that can occur, these have not yet been critically appraised and synopsised to form a comprehensive review of their prevalence and effects on the quality of life of patients with rectal cancer. DESIGN: This literature review study addresses the aims and objectives. METHODS: Following a literature search of electronic databases, 23 articles were retrieved that met the selection criteria with papers discussed in relation to symptoms that present due to this treatment, with six of these 23 studies also referring to health-related quality of life. RESULTS: Preoperative radiotherapy leads to a number of common adverse effects including diarrhoea, dermatological problems, micturition problems, fatigue, sexual dysfunction and pain. Some can lead to a decline in quality of life during treatment and cause prolonged surgical recovery times, but there appears to be no long-term deterioration in quality of life. CONCLUSIONS: There is a paucity of literature that specifically examines fatigue and quality of life in relation to patients with rectal cancer during preoperative radiotherapy treatment. RELEVANCE TO CLINICAL PRACTICE: Awareness of the prevalence and severity of the acute side effects of preoperative radiotherapy will enable nurses to thoroughly assess these symptoms, plan and implement appropriate interventions and evaluate outcomes. This will assist in optimising the quality of life of patients with rectal cancer and may hasten postoperative recovery times.


Assuntos
Qualidade de Vida , Neoplasias Retais/radioterapia , Terapia Combinada , Humanos , Cuidados Pré-Operatórios , Radioterapia/efeitos adversos , Neoplasias Retais/fisiopatologia , Neoplasias Retais/cirurgia
15.
Dimens Crit Care Nurs ; 24(3): 131-8, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-15912063

RESUMO

Critical care education is an important part of the professional development of a competent critical care nurse. Interdependence between physiological and psychosocial theories and concepts is a key consideration in the development of critical care educational programs. This multidisciplinary educational framework fosters a deeper understanding of factors contributing to ill health. Establishing a strategic framework where research, education, clinical excellence, and quality assurance are interlinked is central to enhancing the efficacy of patient care outcomes.


Assuntos
Cuidados Críticos/organização & administração , Currículo/tendências , Educação de Pós-Graduação em Enfermagem/organização & administração , Saúde Holística , Enfermagem Holística , Adaptação Psicológica , Atitude do Pessoal de Saúde , Cuidados Críticos/psicologia , Estado Terminal/enfermagem , Estado Terminal/psicologia , Enfermagem Holística/educação , Enfermagem Holística/tendências , Humanos , Irlanda , Conhecimento , Modelos Educacionais , Modelos de Enfermagem , Papel do Profissional de Enfermagem , Pesquisa em Educação em Enfermagem , Pesquisa em Enfermagem/educação , Pesquisa em Enfermagem/organização & administração , Recursos Humanos de Enfermagem Hospitalar/educação , Recursos Humanos de Enfermagem Hospitalar/organização & administração , Equipe de Assistência ao Paciente/organização & administração , Filosofia em Enfermagem , Desenvolvimento de Programas , Avaliação de Programas e Projetos de Saúde , Garantia da Qualidade dos Cuidados de Saúde/organização & administração , Espiritualidade , Estudantes de Enfermagem/psicologia
16.
Neurobiol Aging ; 25(10): 1323-31, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-15465630

RESUMO

Brain-derived neurotrophic factor (BDNF) has emerged as a major regulator of synaptic plasticity in the adult brain and acute BDNF infusion has been shown to trigger long-term potentiation (BDNF-LTP) in adult rats. Here we compared the effects of acute BDNF infusion in young adult and aged anesthetized rats. In young rats, BDNF-LTP was accompanied by increased activation of the BDNF receptor TrkB, and extracellular signal-regulated kinase (ERK), as well as enhanced evoked release of glutamate in synaptosomes prepared from DG. In aged rats, both BDNF-LTP and the associated signaling were significantly impaired, while analysis of untreated hippocampal tissue from aged rats showed that activation of TrkB and ERK were decreased. In addition to effects in the DG, BDNF-LTP was accompanied by robust phosphorylation of the calcium/cAMP-responsive element binding protein (CREB) in tissue prepared from entorhinal cortex of both young and aged rats. These results suggest a cascade of presynaptic changes contributing to the expression of BDNF-induced LTP and show that BDNF-induced transduction mechanisms are attenuated with age.


Assuntos
Envelhecimento/metabolismo , Fator Neurotrófico Derivado do Encéfalo/farmacologia , Giro Denteado/metabolismo , Potenciação de Longa Duração/fisiologia , Transmissão Sináptica/fisiologia , Envelhecimento/efeitos dos fármacos , Animais , Giro Denteado/efeitos dos fármacos , MAP Quinases Reguladas por Sinal Extracelular/metabolismo , Ácido Glutâmico/metabolismo , Potenciação de Longa Duração/efeitos dos fármacos , Masculino , Ratos , Ratos Wistar , Transdução de Sinais/efeitos dos fármacos , Transdução de Sinais/fisiologia , Transmissão Sináptica/efeitos dos fármacos
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