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1.
Med Law Rev ; 32(2): 205-228, 2024 May 28.
Artigo em Inglês | MEDLINE | ID: mdl-38654475

RESUMO

The availability of biomaterials is a key component of health research and the development of new health-technologies (including, diagnostics, medicines, and vaccines). People are often encouraged by biobanks to donate samples altruistically to such biobanks. While empirical evidence suggests many donors are motivated by the desire to contribute towards developing new health-technologies for society. However, a tension can arise as health-technologies whose development is contributed to by donors' biomaterials will often be protected by intellectual property rights (IPRs), including patents. Patents give rightsholders control over how patented technologies are used and can be used in a way that impedes public access to technologies developed. Yet, there are no binding European legal obligations mandating disclosure to donors of how IPRs can operate over downstream health-technologies and how they could impact access to health-technologies developed, nor are there legally binding obligations to ensure public accessibility of technologies developed. Focusing on the bioethical implications posed, this article argues that the current situation can impact donors' autonomy and dignity interests. A more holistic approach is needed for biobank donation, which embeds a consideration of donors' expectations/interests from the point of donation through to how such samples are used and how health-technologies developed are accessed. We put forward avenues that seek to address such issues.


Assuntos
Bancos de Espécimes Biológicos , Propriedade Intelectual , Humanos , Bancos de Espécimes Biológicos/legislação & jurisprudência , Bancos de Espécimes Biológicos/ética , Patentes como Assunto/legislação & jurisprudência , Tecnologia Biomédica/legislação & jurisprudência , Tecnologia Biomédica/ética , Doadores de Tecidos/legislação & jurisprudência , Temas Bioéticos/legislação & jurisprudência
2.
J Med Ethics ; 49(8): 583-590, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-34848492

RESUMO

This article outlines and compares current and proposed global institutional mechanisms to increase equitable access to COVID-19 vaccines, focusing on their institutional and operational complementarities and overlaps. It specifically considers the World Health Organization's (WHO's) COVAX (COVID-19 Vaccines Global Access) model as part of the Access to COVID-19 Tools Accelerator (ACT-A) initiative, the WHO's COVID-19 Technology Access Pool (C-TAP) initiative, the proposed TRIPS (Trade-Related Aspects of Intellectual Property Agreement) intellectual property waiver and other proposed WHO and World Trade Organization technology transfer proposals. We argue that while various individual mechanisms each have their specific individual merits-and in some cases weaknesses-overall, many of these current and proposed mechanisms could be highly complementary if used together to deliver equitable global access to vaccines. Nonetheless, we also argue that there are risks posed by the proliferation of proposals in this context, including the potential to disperse stakeholder attention or to delay decisive action. Therefore, we argue that there is now a clear need for concerted global multilateral action to recognise the complementarities of specific models and to provide a pathway for collaboration in attaining global equitable access to vaccines. The institutional infrastructure or proposals to achieve this amply exist at this point in time-but much greater cooperation from industry and clear, decisive and coordinated action from states and international organisations are urgently needed.


Assuntos
COVID-19 , Vacinas , Humanos , Cooperação Internacional , Países em Desenvolvimento , Vacinas contra COVID-19 , Saúde Global , Proliferação de Células
3.
Med Law Rev ; 31(2): 272-292, 2023 May 25.
Artigo em Inglês | MEDLINE | ID: mdl-36240460

RESUMO

Several COVID-19 vaccinations have been authorised worldwide. Whilst some vaccines are contraindicated for certain age groups or health conditions, there are often multiple clinically suitable authorised vaccine brands available. Few states have allowed recipients to choose amongst them, though there are multiple reasons why choice would be valued. We consider the policy justifications for state controls on recipient choice amongst COVID-19 vaccine brands, focusing on European countries and drawing on the UK context as an example. We contrast justifications for not offering choice at the height of the early pandemic crisis, and as some states seek to de-escalate their response and transition towards living with COVID-19. We argue that in the latter context public expectations of choice between available vaccine brands and platforms may rise, but that several considerations may justify continued restrictions on choice. A key factor which states should continue to take into consideration is the global nature of the pandemic. Insofar as offering recipient choice at a national level might exacerbate global inequity in vaccine distribution, states retain a normative and legal justification for restricting choice amongst available and clinically suitable vaccine brands.


Assuntos
Vacinas contra COVID-19 , COVID-19 , Humanos , COVID-19/epidemiologia , COVID-19/prevenção & controle , Europa (Continente) , Pandemias/prevenção & controle , Vacinação
4.
J Cardiothorac Vasc Anesth ; 36(1): 275-285, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34023201

RESUMO

The Fontan circulation is the single-ventricle approach to surgical palliation of complex congenital heart disease wherein biventricular separation and function cannot be safely achieved. Incremental improvements in this surgical technique, along with improvements in the long-term medical management of these patients, have led to greater survival of these patients and a remarkably steady increase in the number of adults living with this unusual circulation and physiology. This has implications for healthcare providers who now have a greater chance of encountering Fontan patients during the course of their practice. This has particularly important implications for anesthesiologists because the effects of their interventions on the finely balanced Fontan circulation may be profound. The American Heart Association and American College of Cardiology recommend that, when possible, elective surgery should be performed in an adult congenital heart disease center, although this may not be feasible in the provision of true emergency care. This review article summarizes the pathophysiology pertinent to the provision of anesthesia in this complex patient group and describes important modifications to anesthetic technique and perioperative management.


Assuntos
Anestesia , Anestésicos , Técnica de Fontan , Cardiopatias Congênitas , Adulto , Cardiopatias Congênitas/cirurgia , Humanos , Cuidados Paliativos
5.
J Cardiothorac Vasc Anesth ; 35(3): 752-762, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32839039

RESUMO

As techniques for corrective and palliative surgery in congenital heart disease improve, the number of patients surviving to become adults with congenital heart disease (ACHD) has increased. A significant proportion of these patients will progress to develop advanced heart failure, the symptoms of which vary, complicating prediction of life expectancy. Unlike acquired heart failure, there is a lack of evidence-based treatments with which to relieve symptoms and prolong survival. As a result, a number of ACHD patients will proceed to heart transplantation. Referral for transplantation should be considered early, given the difficulties with prognostication, and should take place in a center with surgical and medical expertise in the management of ACHD patients and transplantation. In addition to assessing contraindications to heart transplantation for the general population, factors specific to ACHD should be considered. These include pulmonary hypertension, cyanosis, liver disease, previous surgeries, and the degree of allosensitization. Once listed for transplantation, ACHD patients spend longer on the waitlist, and are more likely to die or be delisted than their non-ACHD counterparts. Mechanical circulatory support is used less commonly as a bridge to transplantation given the difficulties with implantation and unfamiliarity of use. Recent evidence suggests that with increased experience and early consideration, mechanical circulatory support can be used successfully as a bridging therapy. Despite a higher early mortality, long-term survival is greater for ACHD patients after transplant due to younger age and relative lack of comorbidities. With early referral, careful assessment of each individual's unique anatomy and physiology, and care in a center experienced with ACHD patients and transplantation, outcomes will continue to improve.


Assuntos
Cardiopatias Congênitas , Insuficiência Cardíaca , Transplante de Coração , Hipertensão Pulmonar , Adulto , Cardiopatias Congênitas/cirurgia , Insuficiência Cardíaca/cirurgia , Humanos , Listas de Espera
6.
Camb Q Healthc Ethics ; 30(3): 529-542, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-34109920

RESUMO

This article focuses primarily on to what extent novel beings, and particularly, beings which display something akin to human consciousness or agency would be (or should be) patentable under current European patent law. Patents grant the patent holder a right to exclude others from using the patented invention for the period of patent grant (usually 20 years). This allows the patent holder to control how that invention can or cannot be used by others downstream, granting patent holders a governance like function over the patented technology for the duration of the patent. Accordingly, the potential for patentability of novel beings gives rise to a myriad of ethical issues including: to what extent is it appropriate for patent holders to retain and exercise patents over "novel beings"; how issues of "agency" displayed by any "novel beings" would fit within the current patent framework, if at all; and to what extent existing exclusions from patentability might exclude patents on "novel beings" or whether changes within patent law may be needed if patents in relation to "novel beings" are deemed ethically problematic. This article focuses on such issues, and in doing so, also sheds light on the role of ethical issues within the patenting of advanced biotechnologies more generally.


Assuntos
Biotecnologia , Europa (Continente) , Humanos
7.
Br J Anaesth ; 125(5): 802-810, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32660716

RESUMO

BACKGROUND: Minimally invasive thoracic surgery causes significant postoperative pain. Erector spinae plane (ESP) block and serratus anterior plane (SAP) block promise effective thoracic analgesia compared with systemically administered opioids, but have never been compared in terms of terms of quality of recovery and overall morbidity after minimally invasive thoracic surgery. METHODS: Sixty adult patients undergoing minimally invasive thoracic surgery were randomly assigned to receive either single-shot ESP or SAP block before surgery using levobupivacaine 0.25%, 30 ml. The primary outcome was quality of patient recovery at 24 h, using the Quality of Recovery-15 (QoR-15) scale. Secondary outcomes included area under the curve (AUC) of pain verbal rating scale (VRS) over time, time to first opioid analgesia, postoperative 24 h opioid consumption, in-hospital comprehensive complication index (CCI) score and hospital stay. RESULTS: The QoR-15 score was higher among ESP patients compared with those in the SAP group, mean (standard deviation): 114 (16) vs 102 (22) (P=0.02). Time (min) to first i.v. opioid analgesia in recovery was 32.6 (20.6) in ESP vs 12.7 (9.5) in SAP (P=0.003). AUC at rest was 92 (31) mm h-1vs 112 (35) in ESP and SAP (P=0.03), respectively, whereas AUC on deep inspiration was 107 mm h-1 (32) vs 129 (32) in ESP and SAP (P=0.01), respectively. VRS pain on movement in ESP and SAP at 24 h was, median (25-75% range): 4 (2-4) vs 5 (3-6) (P=0.04), respectively. Opioid consumption at 24 h postoperatively was 29 (31) vs 39 (34) (P=0.37). Median (25-75%) CCI in ESP and SAP was 1 (0-2) vs 4 (0-26) (P=0.03), whereas hospital stay was 3 (2-6) vs 6 (3-9) days (P=0.17), respectively. CONCLUSION: Compared with SAP, ESP provides superior quality of recovery at 24 h, lower morbidity, and better analgesia after minimally invasive thoracic surgery. CLINICAL TRIAL REGISTRATION: NCT03862612.


Assuntos
Raquianestesia/métodos , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Bloqueio Nervoso/métodos , Cirurgia Torácica Vídeoassistida/métodos , Procedimentos Cirúrgicos Torácicos/métodos , Adulto , Idoso , Analgésicos Opioides/administração & dosagem , Analgésicos Opioides/uso terapêutico , Período de Recuperação da Anestesia , Anestésicos Locais , Feminino , Humanos , Tempo de Internação , Levobupivacaína , Masculino , Pessoa de Meia-Idade , Dor Pós-Operatória/tratamento farmacológico , Dor Pós-Operatória/epidemiologia , Complicações Pós-Operatórias/epidemiologia , Procedimentos Cirúrgicos Robóticos/métodos
8.
J Med Ethics ; 2020 Nov 30.
Artigo em Inglês | MEDLINE | ID: mdl-33257522

RESUMO

In June 2020, Gilead agreed to provide the USA with 500 000 doses of remdesivir-an antiviral drug which at that time was percieved to show promise in reducing the recovery time for patients with COVID-19. This quantity represented Gilead's then full production capacity for July and 90% of its capacity for August and September. Similar deals are evident around access to proposed vaccines for COVID-19, and such deals are only likely to increase. These attempts to secure preferential access to medicines and vaccines, so-called vaccine/treatment nationalism, jeopardise supplies of life-saving treatments and vaccines available elsewhere, and jeopardise global equitable distribution of such vaccines/treatments more generally. Much of the focus to date has been on States' role in negotiating such deals. However, such developments also demonstrate the power patent holders have in controlling access to life-saving healthcare, determining who obtains access first and at what price. This article argues that the extent of control currently given to patent holders for COVID-19 must be questioned. This article demonstrates that patents have significant implications for healthcare acting as private governance tools over patented inventions. It is only by greater probing of patent holders' role in delivering access to medicines, diagnostics and vaccines for COVID-19 that equitable global equitable access can be achieved.

9.
Med Law Rev ; 28(3): 445-477, 2020 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-32182350

RESUMO

Over time, medical law has moved away from paternalism in favour of an approach grounded in patients' rights. Using Montgomery v Lanarkshire Health Board (2015) as a case study, we offer a deeper analysis of this emerging approach. We argue that patients' rights should be evaluated in terms of their contribution to making medical law more socially responsive, by developing it to give effect to social needs and aspirations pertaining to health care. Although rights can play an important role in achieving social responsiveness, they also carry the risk of entrenching approaches unrepresentative of patients' actual needs and empirical realities. This is evident in Montgomery, where the law, despite being derived from General Medical Council (GMC) guidance, has effects that differ significantly from the GMC's goals. Drawing on socio-legal literature, we outline a new approach for guiding the use of rights in medical law focused on the functional consequences of rights in facilitating patients' aspirations, and the capacity of rights to respond to social and institutional contexts in which medical interaction occurs. We conclude by showing how this approach, applied to informed consent, would produce a different and arguably a superior duty, providing a sounder basis for responding to patient needs.


Assuntos
Tomada de Decisão Compartilhada , Jurisprudência , Direitos do Paciente/ética , Direitos do Paciente/legislação & jurisprudência , Responsabilidade Social , Revelação , Consentimento Livre e Esclarecido , Objetivos Organizacionais , Autonomia Pessoal , Relações Médico-Paciente
10.
Med Law Rev ; 28(1): 155-182, 2020 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-31377815

RESUMO

Harms arising from digital data use in the big data context are often systemic and cannot always be captured by linear cause and effect. Individual data subjects and third parties can bear the main downstream costs arising from increasingly complex forms of data uses-without being able to trace the exact data flows. Because current regulatory frameworks do not adequately address this situation, we propose a move towards harm mitigation tools to complement existing legal remedies. In this article, we make a normative and practical case for why individuals should be offered support in such contexts and how harm mitigation tools can achieve this. We put forward the idea of 'Harm Mitigation Bodies' (HMBs), which people could turn to when they feel they were harmed by data use but do not qualify for legal remedies, or where existing legal remedies do not address their specific circumstances. HMBs would help to obtain a better understanding of the nature, severity, and frequency of harms occurring from both lawful and unlawful data use, and they could also provide financial support in some cases. We set out the role and form of these HMBs for the first time in this article.


Assuntos
Big Data/economia , Confidencialidade/legislação & jurisprudência , Regulamentação Governamental , Redução do Dano , Disseminação de Informação/legislação & jurisprudência , Responsabilidade Legal/economia , Causalidade , Humanos
11.
Proc Natl Acad Sci U S A ; 112(11): 3481-6, 2015 Mar 17.
Artigo em Inglês | MEDLINE | ID: mdl-25733862

RESUMO

In invertebrates, reproductive output and lifespan are profoundly impacted by dietary macronutrient balance, with these traits achieving their maxima on different diet compositions, giving the appearance of a resource-based tradeoff between reproduction and longevity. For the first time in a mammal, to our knowledge, we evaluate the effects of dietary protein (P), carbohydrate (C), fat (F), and energy (E) on lifespan and reproductive function in aging male and female mice. We show that, as in invertebrates, the balance of macronutrients has marked and largely opposing effects on reproductive and longevity outcomes. Mice were provided ad libitum access to one of 25 diets differing in P, C, F, and E content, with reproductive outcomes assessed at 15 months. An optimal balance of macronutrients exists for reproductive function, which, for most measures, differs from the diets that optimize lifespan, and this response differs with sex. Maximal longevity was achieved on diets containing a P:C ratio of 1:13 in males and 1:11 for females. Diets that optimized testes mass and epididymal sperm counts (indicators of gamete production) contained a higher P:C ratio (1:1) than those that maximized lifespan. In females, uterine mass (an indicator of estrogenic activity) was also greatest on high P:C diets (1:1) whereas ovarian follicle number was greatest on P:C 3:1 associated with high-F intakes. By contrast, estrous cycling was more likely in mice on lower P:C (1:8), and the number of corpora lutea, indicative of recent ovulations, was greatest on P:C similar to those supporting greatest longevity (1:11).


Assuntos
Envelhecimento/fisiologia , Dieta , Longevidade/fisiologia , Reprodução/fisiologia , Envelhecimento/efeitos dos fármacos , Animais , Carboidratos da Dieta/farmacologia , Gorduras na Dieta/farmacologia , Proteínas Alimentares/farmacologia , Ciclo Estral/efeitos dos fármacos , Feminino , Células Germinativas/citologia , Células Germinativas/efeitos dos fármacos , Longevidade/efeitos dos fármacos , Masculino , Camundongos Endogâmicos C57BL , Ovário/citologia , Ovário/efeitos dos fármacos , Reprodução/efeitos dos fármacos
12.
Clin Psychol Psychother ; 25(3): 415-426, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29383791

RESUMO

Although there have been some recent changes in Ireland, the practice of mandating personal therapy during training has traditionally differed between counselling and clinical psychologists. Irish psychologists (n = 258: 170 clinical, 88 counselling) took part in a survey study of experiences and views regarding this practice. Counselling psychologists reported higher rates of lifetime and current attendance at personal therapy compared to clinical psychologists, and nearly all had experienced mandated personal therapy compared to a minority of the clinical group. However, the clinical psychologists had a high rate of attendance at personal therapy compared to that reported for their British peers, indicating a high regard for personal therapy amongst Irish clinicians despite the absence of a training mandate. Five factors were found to be independent predictors of agreement with mandating personal therapy during training-lifetime experience of personal therapy, being a counselling psychologist, experience of mandated therapy, being more recently qualified, and longer attendance at personal therapy. Thematic analysis of the psychologists' open responses regarding mandated therapy indicated that the majority believed that personal therapy was an important part of ethical, effective practice, and valuable in enhancing self-awareness and learning from the client experience. Ethical concerns about a mandate were polarised between the two psychology specialisms, more counselling psychologists emphasising the dangers and questionable efficacy of psychologists practising psychotherapy without personal therapy experience, and more clinical psychologists questioning the efficacy and ethics of imposing a mandate on trainees. Recommendations are made regarding this issue for trainers of both specialisms.


Assuntos
Atitude do Pessoal de Saúde , Aconselhamento/educação , Aconselhamento/ética , Psicologia Clínica/educação , Psicologia Clínica/ética , Psicoterapia/educação , Psicoterapia/ética , Feminino , Humanos , Irlanda , Masculino
13.
Am J Physiol Heart Circ Physiol ; 310(9): H1064-70, 2016 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-26921440

RESUMO

Fenestrations are pores within the liver sinusoidal endothelial cells (LSECs) that line the sinusoids of the highly vascularized liver. Fenestrations facilitate the transfer of substrates between blood and hepatocytes. With pseudocapillarization of the hepatic sinusoid in old age, there is a loss of fenestrations. LSECs are uniquely exposed to gut-derived dietary and microbial substrates delivered by the portal circulation to the liver. Here we studied the effect of 25 diets varying in content of macronutrients and energy on LSEC fenestrations using the Geometric Framework method in a large cohort of mice aged 15 mo. Macronutrient distribution rather than total food or energy intake was associated with changes in fenestrations. Porosity and frequency were inversely associated with dietary fat intake, while fenestration diameter was inversely associated with protein or carbohydrate intake. Fenestrations were also linked to diet-induced changes in gut microbiome, with increased fenestrations associated with higher abundance of Firmicutes and reduced abundance of Bacteroidetes Diet-induced changes in levels of several fatty acids (C16:0, C19:0, and C20:4) were also significantly inversely associated with fenestrations, suggesting a link between dietary fat and modulation of lipid rafts in the LSECs. Diet influences fenestrations and these data reflect both the key role of the LSECs in clearing gut-derived molecules from the vascular circulation and the impact these molecules have on LSEC morphology.


Assuntos
Ração Animal , Senescência Celular , Carboidratos da Dieta/metabolismo , Proteínas Alimentares/metabolismo , Células Endoteliais/metabolismo , Fígado/irrigação sanguínea , Fenômenos Fisiológicos da Nutrição Animal , Animais , Biomarcadores/sangue , Forma Celular , Carboidratos da Dieta/administração & dosagem , Proteínas Alimentares/administração & dosagem , Células Endoteliais/ultraestrutura , Ingestão de Energia , Feminino , Microbioma Gastrointestinal , Trato Gastrointestinal/metabolismo , Trato Gastrointestinal/microbiologia , Masculino , Camundongos Endogâmicos C57BL , Estado Nutricional , Valor Nutritivo , Porosidade
14.
Arch Biochem Biophys ; 612: 103-114, 2016 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-27789204

RESUMO

Myocardial inflammation following acute myocardial infarct (AMI) is associated with risk of congestive heart failure. Pro-inflammatory neutrophils were recruited to the damaged myocardium 24 h after permanent coronary ligation in rats to induce AMI as judged by the presence of immune-positive myeloperoxidase (MPO) in the tissues; MPO generates the oxidant hypochlorous acid (HOCl). Neutrophils were absent in hearts from Control (untreated) and surgical Sham. Similarly, rats exposed to 1 h coronary ligation (Ischemia) showed no neutrophil infiltrate. Concomitantly, MPO activity increased in left ventricular (LV) homogenates prepared from the AMI group and this was inhibited by paracetamol and the nitroxide TEMPO. The same LV-homogenates showed increased 3-chlorotyrosine/tyrosine ratios (biomarker for MPO-activity). Combined 2D gel/Western blot indicated cardiac myoglobin (Mb) was modified after AMI. Subsequent MALDI-TOF and LC-MS/MS analysis of isolated protein spots revealed increased Mb oxidation in hearts from the AMI group relative to Control, Sham and Ischemia groups. Peptide mass mapping revealed oxidation of Met9 and Met132 to the corresponding sulfoxides yet Cys67 remained unmodified. Therefore, neutrophil-generated HOCl can oxidize cardiac Mb after AMI and this may impact on its function within the affected myocardium: oxidized Mb maybe a useful marker of myocardial inflammation.


Assuntos
Ácido Hipocloroso/química , Infarto do Miocárdio/metabolismo , Miocárdio/metabolismo , Mioglobina/química , Neutrófilos/metabolismo , Oxigênio/química , Animais , Cromatografia Líquida , Modelos Animais de Doenças , Coração/fisiologia , Insuficiência Cardíaca/metabolismo , Ventrículos do Coração/patologia , Imuno-Histoquímica , Inflamação , Masculino , Ratos , Ratos Wistar , Espectrometria de Massas por Ionização e Dessorção a Laser Assistida por Matriz , Sulfóxidos/química , Espectrometria de Massas em Tandem
15.
J Neurochem ; 130(6): 733-47, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24766199

RESUMO

Treatments to inhibit or repair neuronal cell damage sustained during focal ischemia/reperfusion injury in stroke are largely unavailable. We demonstrate that dietary supplementation with the antioxidant di-tert-butyl-bisphenol (BP) before injury decreases infarction and vascular complications in experimental stroke in an animal model. We confirm that BP, a synthetic polyphenol with superior radical-scavenging activity than vitamin E, crosses the blood-brain barrier and accumulates in rat brain. Supplementation with BP did not affect blood pressure or endogenous vitamin E levels in plasma or cerebral tissue. Pre-treatment with BP significantly lowered lipid, protein and thiol oxidation and decreased infarct size in animals subjected to middle cerebral artery occlusion (2 h) and reperfusion (24 h) injury. This neuroprotective action was accompanied by down-regulation of hypoxia inducible factor-1α and glucose transporter-1 mRNA levels, maintenance of neuronal tissue ATP concentration and inhibition of pro-apoptotic factors that together enhanced cerebral tissue viability after injury. That pre-treatment with BP ameliorates oxidative damage and preserves cerebral tissue during focal ischemic insult indicates that oxidative stress plays at least some causal role in promoting tissue damage in experimental stroke. The data strongly suggest that inhibition of oxidative stress through BP scavenging free radicals in vivo contributes significantly to neuroprotection. We demonstrate that pre-treatment with ditert-butyl bisphenol(Di-t-Bu-BP) inhibits lipid, protein, and total thiol oxidation and decreases caspase activation and infarct size in rats subjected to middle cerebral artery occlusion (2 h) and reperfusion (24 h) injury. These data suggest that inhibition of oxidative stress contributes significantly to neuroprotection.


Assuntos
Antioxidantes/farmacologia , Compostos Benzidrílicos/farmacologia , Fármacos Neuroprotetores , Fenóis/farmacologia , Traumatismo por Reperfusão/prevenção & controle , Reação de Fase Aguda/genética , Reação de Fase Aguda/metabolismo , Trifosfato de Adenosina/metabolismo , Animais , Apoptose/efeitos dos fármacos , Pressão Sanguínea/efeitos dos fármacos , Western Blotting , Encéfalo/patologia , Caspase 3/metabolismo , Caspase 7/metabolismo , Dieta , Eletroforese em Gel de Poliacrilamida , Metabolismo Energético/efeitos dos fármacos , Expressão Gênica/efeitos dos fármacos , Imuno-Histoquímica , Marcação In Situ das Extremidades Cortadas , Infarto da Artéria Cerebral Média/patologia , Infarto da Artéria Cerebral Média/prevenção & controle , Masculino , Oxirredução , Ratos , Ratos Wistar , Traumatismo por Reperfusão/patologia , Acidente Vascular Cerebral/patologia , Compostos de Sulfidrila/metabolismo
16.
Br J Clin Psychol ; 53(4): 433-50, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24831119

RESUMO

OBJECTIVES: To evaluate the effectiveness of the computerized CBT (cCBT) programme, MoodGYM, for the reduction in symptoms of general psychological distress (the primary outcome), depression, anxiety, stress, and impaired daily functioning. DESIGN: A randomized controlled trial, with a waiting list control condition, in a routine clinical setting. METHODS: Participants were 149 public mental health service users (aged 18-61 [M = 35.3 years; SD = 10.3]) waiting for interventions. Self-report outcome measures were administered online at baseline and post-intervention (i.e., after 32 days). RESULTS: After high dropout rates, a post-intervention completers analysis examined 28 MoodGYM participants and 38 waiting list control participants. MoodGYM was significantly more effective than the waiting list control for the reduction of symptoms of general psychological distress (F[1, 64] = 4.45; p < .05) and stress (F[1, 64] = 5.35; p < .05) but not depression, anxiety, or impaired daily functioning. CONCLUSIONS: Due to their high associated dropout rates, self-help cCBT programmes such as MoodGYM should not be provided as front-line treatments. However, as it is likely to be agreeable and beneficial to some service users, perhaps self-help cCBT should be provided as an additional treatment option.


Assuntos
Ansiedade/terapia , Terapia Cognitivo-Comportamental/instrumentação , Depressão/terapia , Serviços de Saúde Mental/organização & administração , Software , Estresse Psicológico/terapia , Terapia Assistida por Computador/instrumentação , Atividades Cotidianas/psicologia , Adolescente , Adulto , Análise de Variância , Ansiedade/psicologia , Depressão/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Satisfação do Paciente , Vigilância da População , Avaliação de Programas e Projetos de Saúde , Estresse Psicológico/psicologia , Inquéritos e Questionários , Resultado do Tratamento , Listas de Espera , Adulto Jovem
17.
Clin Psychol Psychother ; 21(3): 264-75, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-23355350

RESUMO

UNLABELLED: This study aimed to provide the first detailed survey of Irish psychologists' supervision practices as well as to identify what is related to satisfaction with supervisory support and to confidence in providing supervision. An online survey was distributed nationwide to Irish psychologists. Participants were mostly clinical and counselling psychologists. Three-quarters of the participants constituted 51% of the total population of Irish health service psychologists, the remainder working in various non-health service settings. The results showed that most Irish psychologists attend supervision but at a low frequency, typically once monthly. One-third were dissatisfied with their supervision, greater satisfaction being related to having more frequent clinical supervision and having external individual clinical supervision. Having a safe and trustworthy relationship with supervisors was a dominant issue, and two-thirds of psychologists wanted separation of their clinical and line management supervision. Although 70% were supervisors, only 40% were confident in their supervisory skills and just 16% had formal supervisor training. Independent predictors of supervisory confidence were experience as a psychologist, having formal supervisor training, experience as a supervisor and confidence as a therapist. A novel finding was that longer experience of personal therapy was related to greater confidence as a supervisor. This study indicates the need for access to more frequent clinical supervision to be facilitated for psychologists and for there to be clear separation of line management and clinical supervision. It is also essential that more resources are put into training supervisors. KEY PRACTITIONER MESSAGE: While most psychologists are engaged in supervision, frequency of attendance is low, with more satisfied psychologists having more frequent supervision. Most psychologists want separation of their clinical and line management supervision and have a preference for external supervision, safe and trustworthy relationships with supervisors being their primary concern. Only 16% of psychologists had formal training in supervision but having such training significantly contributed to greater confidence as a supervisor, indicating an urgent need to provide more supervisor training for psychologists.


Assuntos
Atitude do Pessoal de Saúde , Competência Clínica/estatística & dados numéricos , Satisfação no Emprego , Liderança , Psicologia/estatística & dados numéricos , Aconselhamento/métodos , Feminino , Humanos , Irlanda , Masculino , Psicologia Clínica/métodos , Inquéritos e Questionários
18.
Med Law Rev ; 22(4): 572-605, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24769808

RESUMO

Modern technologies and biomedicine ambitions have given rise to new models of medical research, including population biobanking. One example of biobanking is brain banking, which refers to the collection and storage of brain and spinal cord samples for research into neurological diseases. Obviously, brain banking involves taking brains and tissue from deceased people, a fact which complicates the role of recruiters and makes consent a poor tool for stakeholders. After contextualising brain banking and considering the public health issues at stake, this article explores the legal definitions and demands of, and actual processes around, consent in England/Wales/Northern Ireland and authorisation in Scotland, articulating and evaluating their conceptual and practical differences. It then argues for an expanded but improved operation of 'authorisation' in the brain banking (and broader biobanking) setting, adopting 'solidarity' as our foundation and the improvement of the 'public good' our objective.


Assuntos
Bancos de Espécimes Biológicos/legislação & jurisprudência , Pesquisa Biomédica/legislação & jurisprudência , Encéfalo , Consentimento Livre e Esclarecido/legislação & jurisprudência , Obtenção de Tecidos e Órgãos/legislação & jurisprudência , Pesquisa Biomédica/ética , Encefalopatias , Tomada de Decisões , Regulamentação Governamental , Humanos , Manejo de Espécimes/ética , Medicina Estatal , Consentimento do Representante Legal/legislação & jurisprudência , Reino Unido
19.
J Pathol ; 227(2): 157-64, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22344601

RESUMO

Despite improvements in treatment, myocardial infarction (MI) remains an important cause of morbidity and mortality. Inflammation arising from ischaemic and reperfusion injury is a key mechanism which underpins myocardial damage and impairment of cardiac function. Early growth response-1 (Egr-1) is an early immediate gene and a master regulator that has been implicated in the pathogenesis of ischaemia-reperfusion (IR) injury. This study sought to examine the effect of selective inhibition of Egr-1 using catalytic deoxyribonucleic acid molecules (DNAzymes, DZs) delivered via the clinically relevant coronary route in a large animal model of myocardial IR. It was hypothesized that Egr-1 inhibition with intracoronary DZ would reduce infarction size by modulating its downstream effector molecules. Egr-1 DZs inhibited the adherence of THP-1 monocytes to IL-1ß-activated endothelial cells in vitro and retained its catalytic activity up to 225 min after in vivo administration. In a porcine model of myocardial IR (45 min ischaemia/3 h reperfusion), DZ was taken up in the cytoplasm and nuclei of cardiomyocytes and endothelial cells in the myocardium after intracoronary delivery. Egr-1 DZs reduced infarct size and improved cardiac functional recovery following intracoronary delivery at the initiation of IR in this large animal model of MI. This was associated with inhibition of pro-inflammatory Egr-1 and ICAM-1 expression, and the reduced expression of TNF-α, PAI-1, TF, and myocardial MPO activity in tissue derived from the border zone of the infarct. Taken together, these data suggest that strategies targeting Egr-1 via the intracoronary route after IR injury in pigs have potential therapeutic implications in human MI.


Assuntos
DNA de Cadeia Simples/administração & dosagem , Proteína 1 de Resposta de Crescimento Precoce/genética , Terapia Genética/métodos , Infarto do Miocárdio/prevenção & controle , Traumatismo por Reperfusão Miocárdica/prevenção & controle , Miocárdio/patologia , Animais , Adesão Celular , Células Cultivadas , Modelos Animais de Doenças , Proteína 1 de Resposta de Crescimento Precoce/metabolismo , Células Endoteliais/metabolismo , Feminino , Humanos , Injeções , Molécula 1 de Adesão Intercelular/metabolismo , Interleucina-1beta/metabolismo , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Nus , Monócitos/metabolismo , Infarto do Miocárdio/genética , Infarto do Miocárdio/metabolismo , Infarto do Miocárdio/patologia , Infarto do Miocárdio/fisiopatologia , Traumatismo por Reperfusão Miocárdica/genética , Traumatismo por Reperfusão Miocárdica/metabolismo , Traumatismo por Reperfusão Miocárdica/patologia , Traumatismo por Reperfusão Miocárdica/fisiopatologia , Miocárdio/metabolismo , Peroxidase/metabolismo , Inibidor 1 de Ativador de Plasminogênio/metabolismo , Recuperação de Função Fisiológica , Suínos , Tromboplastina/metabolismo , Fatores de Tempo , Transfecção , Fator de Necrose Tumoral alfa/metabolismo
20.
Psychol Serv ; 20(2): 256-266, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-35901419

RESUMO

Heron's six category intervention framework, delineating key intervention styles within helping relationships, was developed to guide therapeutic work but has also been applied to supervisory work. Some previous research has investigated this framework's relevance for practice but there has been no previous research analyzing its application to supervision. Following a longitudinal, naturalistic, observational case study design, this study aimed to analyze and illustrate the usefulness of the six category intervention framework as a guide for supervisory practice. Individual meetings of five supervisory dyads in an Irish transdisciplinary, brief-intervention, public youth mental health service were recorded for 6 months. A codebook applying Heron's intervention framework to supervision was developed inductively and deductively, good interrater reliability was established, and transcripts of 20 of the dyads' supervision meetings were coded and analyzed. Informative interventions were found to be most dominant, followed by supportive and prescriptive interventions. Catalytic interventions were seldom used, and confronting and cathartic interventions were rare. It is concluded that the high use of informative interventions fitted the needs of early-career supervisees and the high pace of a brief-intervention service. However, a greater balance of interventions is recommended in supervisory practice, particularly more catalytic, cathartic, and confronting interventions, in order to foster supervisee autonomy and capability. Detailed illustrations of seldom-used interventions are presented and analyzed, and opportunities for their greater use are considered. It is concluded that the six category intervention framework offers a useful guide for supervisor training and ongoing development of supervisory practice in workplace settings. (PsycInfo Database Record (c) 2023 APA, all rights reserved).


Assuntos
Catárticos , Serviços de Saúde Mental , Humanos , Adolescente , Reprodutibilidade dos Testes
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