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1.
Molecules ; 26(8)2021 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-33921093

RESUMO

Plant-based indole alkaloids are very rich in pharmacological activities, and the indole nucleus is considered to contribute greatly to these activities. This review's fundamental objective is to summarize the pharmacological potential of indole alkaloids that have been derived from plants and provide a detailed evaluation of their established pharmacological activities, which may contribute to identifying new lead compounds. The study was performed by searching various scientific databases, including Springer, Elsevier, ACS Publications, Taylor and Francis, Thieme, Wiley Online Library, ProQuest, MDPI, and online scientific books. A total of 100 indole compounds were identified and reviewed. The most active compounds possessed a variety of pharmacological activities, including anticancer, antibacterial, antiviral, antimalarial, antifungal, anti-inflammatory, antidepressant, analgesic, hypotensive, anticholinesterase, antiplatelet, antidiarrheal, spasmolytic, antileishmanial, lipid-lowering, antimycobacterial, and antidiabetic activities. Although some compounds have potent activity, some only have mild-to-moderate activity. The pharmacokinetic profiles of some of the identified compounds, such as brucine, mitragynine, 7-hydroxymitragynine, vindoline, and harmane, were also reviewed. Most of these compounds showed promising pharmacological activity. An in-depth pharmacological evaluation of these compounds should be performed to determine whether any of these indoles may serve as new leads.


Assuntos
Alcaloides/química , Extratos Vegetais/química , Animais , Anti-Infecciosos/química , Anti-Infecciosos/farmacologia , Anti-Inflamatórios/química , Anti-Inflamatórios/farmacologia , Humanos
2.
Retin Cases Brief Rep ; 12(4): 291-293, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-27941572

RESUMO

PURPOSE: To report an association between a Stage 4 full-thickness macular hole and focal choroidal excavation. METHODS: Case report. RESULTS: A 46-year-old male patient with high myopia was referred for macular hole surgery and found to have an associated focal choroidal excavation. The patient underwent uneventful combined procedure with closure of macular hole. CONCLUSION: Successful macular hole surgery can be achieved even in the presence of focal choroidal excavation.


Assuntos
Neovascularização de Coroide/cirurgia , Perfurações Retinianas/cirurgia , Neovascularização de Coroide/complicações , Humanos , Masculino , Pessoa de Meia-Idade , Miopia Degenerativa/complicações , Facoemulsificação/métodos , Perfurações Retinianas/complicações , Resultado do Tratamento , Vitrectomia/métodos
3.
J Cancer Educ ; 31(4): 784-788, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-26611278

RESUMO

Breast cancer (BC) accounts for 24 % of all women cancer cases diagnosed in Saudi Arabia each year. Awareness is extremely important in combating this disease. This study was undertaken to assess male high school students' response to BC. This cross-sectional survey was performed on male high school students across schools in Jeddah. A questionnaire gathered data on respondent demographics, beliefs about BC, BC risk factors, early screening methods, and role of men in BC. Statistical analysis was done using SPSS 20. A total of 824 students participated, with an average age of 17.0 years. There was more than 50 % agreement that early detection of BC enhances the chances of recovery, that BC is treatable, and that clinical breast examination and breastfeeding provide protection from BC. Around half the survey population thought that BC was fatal and contagious. Fewer than 50 % thought that BC was inherited and related to smoking, consumption of contraceptive pills, repeated exposure to radiation, obesity, and wearing a bra and that breast tumors were all malignant and spread to different parts of the body. Others knew that mammograms should be performed periodically. A high percentage persuaded their relatives to have mammograms and provided them with psychological support. Knowledge of BC among male high school students in Saudi Arabia is still limited, and, therefore, programs and activities need to be established to increase awareness among high school students.


Assuntos
Neoplasias da Mama/diagnóstico , Conhecimentos, Atitudes e Prática em Saúde , Estudantes/psicologia , Adolescente , Adulto , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/psicologia , Estudos Transversais , Feminino , Humanos , Masculino , Arábia Saudita/epidemiologia , Instituições Acadêmicas , Inquéritos e Questionários , Adulto Jovem
5.
Scand J Public Health ; 41(2): 206-15, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23287398

RESUMO

BACKGROUND: Transplantation is the treatment of choice for end-stage renal disease; it increases survival and quality of life, while being more cost-effective than dialysis. It is, however, limited by the scarcity of kidneys. The aim of this paper is to investigate the fairness of the priority setting process underpinning Swedish kidney transplantation in reference to the Accountability for Reasonableness (A4R) framework. METHODS: Fifteen semi-structured interviews were carried out with transplant surgeons (7), nephrologists (6) and coordinators (2) representing centers nationwide. Collected data was analysed using thematic analysis. To assess fairness in the priority setting process, identified factors were assessed in the reference to the four conditions (publicity, relevance, revision and appeal, enforcement) forming the accountability for reasonableness framework. RESULTS: Decision-making in assessment and allocation is based on clusters of factors. The factors appeal to various values, which are balanced against each other throughout the kidney allocation process: maximizing benefit, priority to the worst off and equality. The factors described by subjects and the values on which they rest satisfy the relevance condition of the accountability for reasonableness framework. However, two potential sources for unfair inequalities in access to treatment are identified: clinical judgment and institutional policies. CONCLUSIONS: The development of national guidelines both for assessing transplant candidacy, and for the allocation of kidneys from deceased donors, would contribute to standardize practices across centres; it will also help to better meet the conditions of fairness in reference to Accountability for Reasonableness. The benefits of this policy proposal in Swedish kidney transplantation merits consideration.


Assuntos
Tomada de Decisões/ética , Alocação de Recursos para a Atenção à Saúde/ética , Pessoal de Saúde/psicologia , Prioridades em Saúde/ética , Transplante de Rim , Análise por Conglomerados , Feminino , Humanos , Falência Renal Crônica/terapia , Masculino , Pesquisa Qualitativa , Justiça Social , Responsabilidade Social , Suécia , Listas de Espera
6.
Scand J Public Health ; 39(2): 156-63, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21239479

RESUMO

AIMS: The established deceased organ donation models in many countries, relying chiefly on altruism, have failed to motivate a sufficient number of donors. As a consequence organs that could save lives are routinely missed leading to a growing gap between demand and supply. The aim of this paper is twofold; firstly to develop a proposal for compensated deceased organ donation that could potentially address the organ shortage; secondly to examine the compatibility of the proposal with the ethical values of the Swedish healthcare system. METHODS: The proposal for compensating deceased donation is grounded in behavioural agency theory and combines extrinsic, intrinsic and signalling incentives in order to increase prosocial behaviour. Furthermore the compatibility of our proposal with the values of the Swedish healthcare system is evaluated in reference to the principles of human dignity, needs and solidarity, and cost effectiveness. RESULTS: Extrinsic incentives in the form of a 5,000 compensation towards funeral expenses paid to the estate of the deceased or family is proposed. Intrinsic and signalling incentives are incorporated by allowing all or part of the compensation to be diverted as a donation to a reputable charity. The decision for organ donation must not be against the explicit will of the donor. CONCLUSIONS: We find that our proposal for compensated deceased donation is compatible with the values of the Swedish healthcare system, and therefore merits serious consideration. It is however important to acknowledge issues relating to coercion, commodification and loss of public trust and the ethical challenges that they might pose.


Assuntos
Motivação , Transplante de Órgãos/economia , Obtenção de Tecidos e Órgãos/economia , Comércio/ética , Compensação e Reparação/ética , Análise Custo-Benefício , Humanos , Transplante de Órgãos/ética , Suécia , Obtenção de Tecidos e Órgãos/ética
8.
Health Care Anal ; 18(1): 85-101, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19184442

RESUMO

Kidney transplantation is the most efficacious and cost-effective treatment for end-stage renal disease. However, the treatment's accessibility is limited by a chronic shortage of transplantable kidneys, resulting in the death of numerous patients worldwide as they wait for a kidney to become available. Despite the implementation of various measures the disparity between supply and needs continues to grow. This paper begins with a look at the current treatment options, including various sources of transplantable kidneys, for end-stage renal disease. We propose, in accordance with others, the introduction of compensated kidney donation as a means of addressing the current shortage. We briefly outline some of the advantages of this proposal, and then turn to examine several of the ethical arguments usually marshaled against it in a bid to demonstrate that this proposal indeed passes the ethics test. Using available data of public opinions on compensated donation, we illustrate that public support for such a program would be adequate enough that we can realistically eliminate the transplant waiting list if compensation is introduced. We urge a pragmatic approach going forward; altruism in living kidney donation is important, but altruism only is an unsuccessful doctrine.


Assuntos
Compensação e Reparação/ética , Falência Renal Crônica/cirurgia , Transplante de Rim/ética , Doadores Vivos/ética , Altruísmo , Humanos , Transplante de Rim/economia , Obtenção de Tecidos e Órgãos/ética
9.
Scand J Public Health ; 37(2): 122-30, 2009 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-19141543

RESUMO

BACKGROUND: Healthcare priority-setting is inextricably linked to the challenge of providing publicly funded healthcare within a limited budget, which may result in difficult and potentially controversial rationing decisions. Despite priority-setting's increasing prominence in policy and academic discussion, it is still unclear what the level of understanding and acceptance of priority-setting is at different levels of health care. AIMS: The aim of this study is threefold. First we wish to explore the level of familiarity with different aspects of priority-setting among graduating medical students. Secondly, to gauge their acceptance of both established and proposed Swedish priority-setting principles. Finally to elucidate their attitudes towards healthcare rationing and the role of different actors in decision making, with a particular interest in comparing the attitudes of medical students with data from the literature examining the attitudes among primary care patients in Sweden. METHODS: A cross-sectional survey containing 14 multiple choice items about priority-setting in healthcare was distributed to the graduating medical class at Linkoöping University. The response rate was 92% (43/47). RESULTS: Less than half of respondents have encountered the notion of open priority-setting, and the majority believed it to be somewhat or very unclear. There is a high degree of awareness and agreement with the established ethical principles for priority-setting in Swedish health care; however respondents are inconsistent in their application of the cost-effectiveness principle. A larger proportion of respondents were more favourable to physicians and other health personnel being responsible for rationing decisions as opposed to politicians. CONCLUSIONS: Future discussion about priority-setting in medical education should be contextualized within an explicit and open process. There is a need to adequately clarify the role of the cost-effectiveness principle in priority-setting. Medical students seem to acknowledge the need for rationing in healthcare to a greater extent when compared with previous results from Swedish primary care patients.


Assuntos
Alocação de Recursos para a Atenção à Saúde , Prioridades em Saúde , Atitude do Pessoal de Saúde , Análise Custo-Benefício , Estudos Transversais , Tomada de Decisões , Educação Médica , Feminino , Alocação de Recursos para a Atenção à Saúde/economia , Alocação de Recursos para a Atenção à Saúde/ética , Política de Saúde/economia , Prioridades em Saúde/economia , Prioridades em Saúde/ética , Humanos , Masculino , Atenção Primária à Saúde/economia , Atenção Primária à Saúde/ética , Estudantes de Medicina/psicologia , Inquéritos e Questionários , Suécia
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