ABSTRACT
Exceptions or waivers to informed consent in research in Chile are an ethical issue that has not been addressed in all its complexity by the scientific community. The possible waivers to this process could make the difference for the feasibility, success or failure of a study. The purpose of this document is to clarify within the available information, what is the current situation about the exceptions to informed consent in research and what are the ethical-legal guidelines in Chile. Articles were reviewed in both English and Spanish from indexed journals and those documents that meet the inclusion criteria were selected. There is limited information available about waivers to informed consent, which indicates that the ethical guidelines are similar among countries that honor the Declaration of Helsinki, including Chile. However, the current Chilean legislation does not include exceptions. Ethics Committees that authorize research in line with international ethical guidelines could allow possible exceptions. Based on our findings, it is necessary to evaluate possible exceptions for informed consent for research performed in Chile, both from the legal point of view and based on the experience of scientists.
Subject(s)
Humans , Ethics, Research , Research Subjects , Informed Consent/standards , Informed Consent/ethics , ChileABSTRACT
ABSTRACT Prostate cancer is one of the neoplastic diseases with the highest morbidity and mortality in the world. The diversity of available treatments and side effects related to therapeutic treatments are severe and affect a patient's quality of life. Thus, to creating new therapeutic alternatives to reduce morbidity and creating safe and effective therapies is a constant challenge. Recently, the use of traditional medicine and chemoprevention has gained importance. Several clinical and epidemiological studies suggest that a high-terpenoid compound-based diet is associated with a reduced risk of prostate cancer. This review is focused on the anti-proliferative effects of different terpenoids isolated from natural sources on human prostate cancer cells, with the aim of setting the basis to use these compounds as phytotherapeutic, nutraceutical and functional ingredients.
RESUMEN El cáncer de próstata es una de las neoplasias que produce gran morbilidad y mortalidad en el mundo. Los tratamientos y los efectos secundarios de la terapia son severos y afectan la calidad de vida del paciente. Por esto, es necesario crear nuevas alternativas terapéuticas para reducir la morbilidad y generar terapias seguras y efectivas es un desafío permanente. En los últimos años, el uso de la medicina tradicional y agentes quimiopreventivos han adquirido importancia. Estudios clínicos y epidemiológicos sugieren que una dieta basada en altas dosis de terpenoides se asocia a una reducción en el riesgo de presentar cáncer de próstata. Esta revisión se centra en los efectos anti-proliferativos sobre las células de cáncer de próstata en humanos de diferentes terpenoides aislados de fuentes naturales, con el objetivo de establecer las bases para utilizar estos compuestos como ingredientes fitoterapéuticos, nutracéuticos y funcionales.