Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 31.916
Filtrar
Mais filtros

Intervalo de ano de publicação
1.
Cell ; 186(17): 3548-3557, 2023 08 17.
Artigo em Inglês | MEDLINE | ID: mdl-37595564

RESUMO

A human embryo's legal definition and its entitlement to protection vary greatly worldwide. Recently, human pluripotent stem cells have been used to form in vitro models of early embryos that have challenged legal definitions and raised questions regarding their usage. In this light, we propose a refined legal definition of an embryo, suggest "tipping points" for when human embryo models could eventually be afforded similar protection to that of embryos, and then revisit basic ethical principles that might help to draft a roadmap for the gradual, justified usage of embryo models in a manner that aims to maximize benefits to society.


Assuntos
Pesquisas com Embriões , Embrião de Mamíferos , Humanos , Células-Tronco Pluripotentes , Pesquisas com Embriões/ética
2.
Annu Rev Biochem ; 89: 77-101, 2020 06 20.
Artigo em Inglês | MEDLINE | ID: mdl-32569517

RESUMO

DNA synthesis technology has progressed to the point that it is now practical to synthesize entire genomes. Quite a variety of methods have been developed, first to synthesize single genes but ultimately to massively edit or write from scratch entire genomes. Synthetic genomes can essentially be clones of native sequences, but this approach does not teach us much new biology. The ability to endow genomes with novel properties offers special promise for addressing questions not easily approachable with conventional gene-at-a-time methods. These include questions about evolution and about how genomes are fundamentally wired informationally, metabolically, and genetically. The techniques and technologies relating to how to design, build, and deliver big DNA at the genome scale are reviewed here. A fuller understanding of these principles may someday lead to the ability to truly design genomes from scratch.


Assuntos
DNA/genética , Edição de Genes/métodos , Técnicas de Transferência de Genes , Genes Sintéticos , Engenharia Genética/métodos , Genoma , Sistemas CRISPR-Cas , DNA/química , DNA/metabolismo , Escherichia coli/genética , Escherichia coli/metabolismo , Humanos , Oligonucleotídeos/síntese química , Oligonucleotídeos/metabolismo , Plasmídeos/química , Plasmídeos/metabolismo , Poliovirus/genética , Poliovirus/metabolismo , Saccharomyces cerevisiae/genética , Saccharomyces cerevisiae/metabolismo , Esferoplastos/genética , Esferoplastos/metabolismo
3.
Annu Rev Genomics Hum Genet ; 24: 393-414, 2023 08 25.
Artigo em Inglês | MEDLINE | ID: mdl-36913714

RESUMO

Genome sequencing is increasingly used in research and integrated into clinical care. In the research domain, large-scale analyses, including whole genome sequencing with variant interpretation and curation, virtually guarantee identification of variants that are pathogenic or likely pathogenic and actionable. Multiple guidelines recommend that findings associated with actionable conditions be offered to research participants in order to demonstrate respect for autonomy, reciprocity, and participant interests in health and privacy. Some recommendations go further and support offering a wider range of findings, including those that are not immediately actionable. In addition, entities covered by the US Health Insurance Portability and Accountability Act (HIPAA) may be required to provide a participant's raw genomic data on request. Despite these widely endorsed guidelines and requirements, the implementation of return of genomic results and data by researchers remains uneven. This article analyzes the ethical and legal foundations for researcher duties to offer adult participants their interpreted results and raw data as the new normal in genomic research.


Assuntos
Genômica , Sequenciamento Completo do Genoma , Genômica/métodos , Sequenciamento Completo do Genoma/métodos , Humanos , United States Food and Drug Administration , Estados Unidos , Armazenamento e Recuperação da Informação , Health Insurance Portability and Accountability Act
4.
Annu Rev Genomics Hum Genet ; 24: 369-391, 2023 08 25.
Artigo em Inglês | MEDLINE | ID: mdl-36791787

RESUMO

The Human Cell Atlas (HCA) is striving to build an open community that is inclusive of all researchers adhering to its principles and as open as possible with respect to data access and use. However, open data sharing can pose certain challenges. For instance, being a global initiative, the HCA must contend with a patchwork of local and regional privacy rules. A notable example is the implementation of the European Union General Data Protection Regulation (GDPR), which caused some concern in the biomedical and genomic data-sharing community. We examine how the HCA's large, international group of researchers is investing tremendous efforts into ensuring appropriate sharing of data. We describe the HCA's objectives and governance, how it defines open data sharing, and ethico-legal challenges encountered early in its development; in particular, we describe the challenges prompted by the GDPR. Finally, we broaden the discussion to address tools and strategies that can be used to address ethical data governance.


Assuntos
Aminas , Ascomicetos , Humanos , Impulso (Psicologia) , União Europeia , Segurança Computacional
5.
Am J Hum Genet ; 110(7): 1021-1033, 2023 07 06.
Artigo em Inglês | MEDLINE | ID: mdl-37343562

RESUMO

Two major goals of the Electronic Medical Record and Genomics (eMERGE) Network are to learn how best to return research results to patient/participants and the clinicians who care for them and also to assess the impact of placing these results in clinical care. Yet since its inception, the Network has confronted a host of challenges in achieving these goals, many of which had ethical, legal, or social implications (ELSIs) that required consideration. Here, we share impediments we encountered in recruiting participants, returning results, and assessing their impact, all of which affected our ability to achieve the goals of eMERGE, as well as the steps we took to attempt to address these obstacles. We divide the domains in which we experienced challenges into four broad categories: (1) study design, including recruitment of more diverse groups; (2) consent; (3) returning results to participants and their health care providers (HCPs); and (4) assessment of follow-up care of participants and measuring the impact of research on participants and their families. Since most phases of eMERGE have included children as well as adults, we also address the particular ELSI posed by including pediatric populations in this research. We make specific suggestions for improving translational genomic research to ensure that future projects can effectively return results and assess their impact on patient/participants and providers if the goals of genomic-informed medicine are to be achieved.


Assuntos
Registros Eletrônicos de Saúde , Genômica , Criança , Adulto , Humanos , Genoma , Pesquisa Translacional Biomédica , Grupos Populacionais
6.
Mol Cell ; 71(6): 879-881, 2018 09 20.
Artigo em Inglês | MEDLINE | ID: mdl-30241604

RESUMO

Data on the perceptions of scientists suggest a moderate public distrust of scientist's motivations. Bettridge et al. suggest scientist's reluctance to engage the public on controversial ethical issues may be a contributing factor. The authors propose a Scientist's Oath to send a clear message to the public about our ideals.


Assuntos
Pessoal de Laboratório/ética , Códigos de Ética , Ética em Pesquisa , Humanos , Pesquisa , Confiança
7.
Bioessays ; 46(6): e2300196, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38537114

RESUMO

This essay assesses the rationale for regulating research administrators as carefully as they regulate researchers. The reasons for such regulation are identical: protecting scientific integrity, ensuring responsible use of public funds, addressing the lack of effective recourse for victims, creating negative consequences for misbehaving actors, and addressing high incentives for misconduct. Whereas the reasons compelling us to regulate research administrators are obvious, counterarguments to administrative oversight are based on suggestions that the incidence and prevalence of cases of administrative misconduct are too low to warrant formal regulation. I briefly describe examples of the phenomenon drawn from publicly available records. My analysis suggests that the misconduct of research administrators is both serious and worthy of better oversight. Improved oversight of research administration will help steward tax dollars appropriately and enhance the overall integrity of the scientific record and of the free pursuit of knowledge more generally.


Assuntos
Pesquisadores , Humanos , Má Conduta Científica , Pessoal Administrativo , Pesquisa
8.
Proc Natl Acad Sci U S A ; 120(18): e2213709120, 2023 05 02.
Artigo em Inglês | MEDLINE | ID: mdl-37094137

RESUMO

The philosopher John Rawls proposed the Veil of Ignorance (VoI) as a thought experiment to identify fair principles for governing a society. Here, we apply the VoI to an important governance domain: artificial intelligence (AI). In five incentive-compatible studies (N = 2, 508), including two preregistered protocols, participants choose principles to govern an Artificial Intelligence (AI) assistant from behind the veil: that is, without knowledge of their own relative position in the group. Compared to participants who have this information, we find a consistent preference for a principle that instructs the AI assistant to prioritize the worst-off. Neither risk attitudes nor political preferences adequately explain these choices. Instead, they appear to be driven by elevated concerns about fairness: Without prompting, participants who reason behind the VoI more frequently explain their choice in terms of fairness, compared to those in the Control condition. Moreover, we find initial support for the ability of the VoI to elicit more robust preferences: In the studies presented here, the VoI increases the likelihood of participants continuing to endorse their initial choice in a subsequent round where they know how they will be affected by the AI intervention and have a self-interested motivation to change their mind. These results emerge in both a descriptive and an immersive game. Our findings suggest that the VoI may be a suitable mechanism for selecting distributive principles to govern AI.


Assuntos
Inteligência Artificial , Sociedades , Humanos , Justiça Social
9.
Semin Cell Dev Biol ; 144: 97-102, 2023 07 30.
Artigo em Inglês | MEDLINE | ID: mdl-35339359

RESUMO

Advances in the field of human stem cells are often a source of public and ethical controversy. Researchers must frequently balance diverse societal perspectives on questions of morality with the pursuit of medical therapeutics and innovation. Recent developments in brain organoids make this challenge even more acute. Brain organoids are a new class of brain surrogate generated from human pluripotent stem cells (hPSCs). They have gained traction as a model for studying the intricacies of the human brain by using advancements in stem cell biology to recapitulate aspects of the developing human brain in vitro. However, recent observation of neural oscillations spontaneously emerging from these organoids raises the question of whether brain organoids are or could become conscious. At the same time, brain organoids offer a potentially unique opportunity to scientifically understand consciousness. To address these issues, experimental biologists, philosophers, and ethicists united to discuss the possibility of consciousness in human brain organoids and the consequent ethical and moral implications.


Assuntos
Estado de Consciência , Células-Tronco Pluripotentes , Humanos , Status Moral , Encéfalo , Organoides
10.
Dev Biol ; 2024 Jul 12.
Artigo em Inglês | MEDLINE | ID: mdl-39004200

RESUMO

The Dobbs decision of the United States Supreme Court and the actions of several state legislatures have made it risky, if not outright dangerous, to teach factual material concerning human embryology. At Idaho's public universities, for instance, if a professor's lecture is felt to teach or discuss abortion (as it might when teaching about tubal pregnancies, hydatidiform moles, or eneuploidy), that instructor risks imprisonment for up to 14 years (Gyori 2023). The state's new censorship rules have thus caused professors to drop modules on abortion from numerous science and humanities courses. In most states, instructors can still teach about human embryonic development and not risk putting their careers or livelihoods in jeopardy. However, even in many of these institutions, students can bring a professor to a disciplinary hearing by claiming that the instructor failed to provide ample trigger warnings on such issues. This essay attempts to provide some strategies wherein human embryology and the ethical issues surrounding it might be taught and students may be given resources to counter unscientific falsehoods about fertilization and human development. This essay provides evidence for teaching the following propositions: Mis-information about human biology and medicine is rampant on the internet, and there are skills that can be taught to students that will help them determine which sites should trusted. This is a skill that needs to be taught as part of science courses.

11.
Circulation ; 149(14): e1028-e1050, 2024 04 02.
Artigo em Inglês | MEDLINE | ID: mdl-38415358

RESUMO

A major focus of academia, industry, and global governmental agencies is to develop and apply artificial intelligence and other advanced analytical tools to transform health care delivery. The American Heart Association supports the creation of tools and services that would further the science and practice of precision medicine by enabling more precise approaches to cardiovascular and stroke research, prevention, and care of individuals and populations. Nevertheless, several challenges exist, and few artificial intelligence tools have been shown to improve cardiovascular and stroke care sufficiently to be widely adopted. This scientific statement outlines the current state of the art on the use of artificial intelligence algorithms and data science in the diagnosis, classification, and treatment of cardiovascular disease. It also sets out to advance this mission, focusing on how digital tools and, in particular, artificial intelligence may provide clinical and mechanistic insights, address bias in clinical studies, and facilitate education and implementation science to improve cardiovascular and stroke outcomes. Last, a key objective of this scientific statement is to further the field by identifying best practices, gaps, and challenges for interested stakeholders.


Assuntos
Doenças Cardiovasculares , Cardiopatias , Acidente Vascular Cerebral , Estados Unidos , Humanos , Inteligência Artificial , American Heart Association , Doenças Cardiovasculares/terapia , Doenças Cardiovasculares/prevenção & controle , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/prevenção & controle
12.
Annu Rev Pharmacol Toxicol ; 62: 323-340, 2022 01 06.
Artigo em Inglês | MEDLINE | ID: mdl-34460317

RESUMO

Over the past 30 years there has been a surge of research on the placebo effect using a neuroscientific approach. The interesting aspects of this effort are related to the identification of several biological mechanisms of both the placebo and nocebo effects, the latter of which is defined as a negative placebo effect. Some important translational implications have emerged both in the setting of clinical trials and in routine medical practice. One of the principal contributions of neuroscience has been to draw the attention of the scientific and medical communities to the important role of psychobiological factors in therapeutic outcomes, be they drug related or not. Indeed, many biological mechanisms triggered by placebos and nocebos resemble those modulated by drugs, suggesting a possible interaction between psychological factors and drug action. Unfortunately, this new knowledge regarding placebos has the potential of being dangerously exploited by pseudoscience.


Assuntos
Efeito Nocebo , Efeito Placebo , Humanos
13.
Annu Rev Genomics Hum Genet ; 23: 627-652, 2022 08 31.
Artigo em Inglês | MEDLINE | ID: mdl-35537469

RESUMO

Over the past two decades, the study of ancient genomes from Ancestral humans, or human paleogenomic research, has expanded rapidly in both scale and scope. Ethical discourse has subsequently emerged to address issues of social responsibility and scientific robusticity in conducting research. Here, we highlight and contextualize the primary sources of professional ethical guidance aimed at paleogenomic researchers. We describe the tension among existing guidelines, while addressing core issues such as consent, destructive research methods, and data access and management. Currently, there is a dissonance between guidelines that focus on scientific outcomes and those that hold scientists accountable to stakeholder communities,such as descendants. Thus, we provide additional tools to navigate the complexities of ancient DNA research while centering engagement with stakeholder communities in the scientific process.


Assuntos
Genômica , Paleontologia , DNA Antigo , Humanos , Consentimento Livre e Esclarecido , Pesquisadores
14.
Am J Hum Genet ; 109(12): 2110-2125, 2022 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-36400022

RESUMO

The use of population descriptors such as race, ethnicity, and ancestry in science, medicine, and public health has a long, complicated, and at times dark history, particularly for genetics, given the field's perceived importance for understanding between-group differences. The historical and potential harms that come with irresponsible use of these categories suggests a clear need for definitive guidance about when and how they can be used appropriately. However, while many prior authors have provided such guidance, no established consensus exists, and the extant literature has not been examined for implied consensus and sources of disagreement. Here, we present the results of a scoping review of published normative recommendations regarding the use of population categories, particularly in genetics research. Following PRISMA guidelines, we extracted recommendations from n = 121 articles matching inclusion criteria. Articles were published consistently throughout the time period examined and in a broad range of journals, demonstrating an ongoing and interdisciplinary perceived need for guidance. Examined recommendations fall under one of eight themes identified during analysis. Seven are characterized by broad agreement across articles; one, "appropriate definitions of population categories and contexts for use," revealed substantial fundamental disagreement among articles. Additionally, while many articles focus on the inappropriate use of race, none fundamentally problematize ancestry. This work can be a resource to researchers looking for normative guidance on the use of population descriptors and can orient authors of future guidelines to this complex field, thereby contributing to the development of more effective future guidelines for genetics research.


Assuntos
Etnicidade , Comportamento Problema , Humanos , Povo Asiático , Consenso , Etnicidade/genética , Pesquisadores
15.
Am J Hum Genet ; 109(8): 1347-1352, 2022 08 04.
Artigo em Inglês | MEDLINE | ID: mdl-35931047

RESUMO

Large-scale precision medicine research requires massive amounts of data representing people from all walks of life; thus, in the US, it is often multistate research. Significant legal and ethical quandaries arise as a result of the patchwork of laws states have enacted that may apply to research, are not preempted by federal law, and may impose requirements or provide participant rights and protections that differ from other states. Determining which state's laws apply, and under what circumstances, is not solved by the transition to a single-IRB model and researchers cannot simply choose one state's laws to apply uniformly. At a minimum, the current process of meeting each state's requirements could be made more reliable and efficient. To fundamentally change this status quo, however, requires action at multiple levels. Federally, well-known gaps in the Genetic Information Nondiscrimination Act should be closed, and a coherent system of compensation for research injury-including non-physical injuries-should be developed. States should clarify which of their laws are intended to apply to research and work collaboratively to harmonize them. At the level of individual research projects, numerous policies and procedures could be standardized through authoritative guidelines. Examples include clarifying the scope of broad consent, understanding and upholding Certificates of Confidentiality, offering individual research results responsibly, and consistently disseminating aggregate results to participants and the public. Overall, development of a choice of law framework specific to the research context could significantly promote clarity and consistency.


Assuntos
Confidencialidade , Medicina de Precisão , Humanos , Estados Unidos
16.
Arterioscler Thromb Vasc Biol ; 44(2): 328-333, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-38059350

RESUMO

The tremendous burden of lipid metabolism diseases, coupled with recent developments in human somatic gene editing, has motivated researchers to propose population-wide somatic gene editing of PCSK9 (proprotein convertase subtilisin/kexin type 9) within the livers of otherwise healthy humans. The best-characterized molecular function of PCSK9 is its ability to regulate plasma LDL (low-density lipoprotein) levels through promoting LDL receptor degradation. Individuals with loss-of-function PCSK9 variants have lower levels of plasma LDL and reduced cardiovascular disease. Gain-of-function variants of PCSK9 are strongly associated with familial hypercholesterolemia. A new therapeutic strategy delivers CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats; CRISPR-associated protein 9) specifically to liver cells to edit the wild-type alleles of PCSK9 with the goal of producing a loss-of-function allele. This direct somatic gene editing approach is being pursued despite the availability of US Food and Drug Administration-approved PCSK9 inhibitors that lower plasma LDL levels. Here, we discuss other characterized functions of PCSK9 including its role in infection and host immunity. We explore important factors that may have contributed to the evolutionary selection of PCSK9 in several vertebrates, including humans. Until such time that more fully understand the multiple biological roles of PCSK9, the ethics of permanently editing the gene locus in healthy, wild-type populations remains highly questionable.


Assuntos
Pró-Proteína Convertase 9 , Pró-Proteína Convertases , Animais , Humanos , Pró-Proteína Convertase 9/genética , Pró-Proteína Convertase 9/metabolismo , Pró-Proteína Convertases/genética , Pró-Proteína Convertases/metabolismo , Serina Endopeptidases/genética , Alelos , Receptores de LDL/genética
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA