Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 38
Filtrar
1.
BMC Med Ethics ; 25(1): 35, 2024 Mar 23.
Artigo em Inglês | MEDLINE | ID: mdl-38521941

RESUMO

Despite clinical evidence of drug superiority, therapeutic modalities, like combination immunotherapy, are mostly considered cost-ineffective due to their high costs per life year(s) gained. This paper, taking an ethical stand, reevaluates the standard cost-effectiveness analysis with that of the more recent justice-enhanced methods and concludes by pointing out the shortcomings of the current methodologies.


Assuntos
Atenção à Saúde , Humanos , Análise Custo-Benefício
2.
Front Pediatr ; 11: 1324948, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38259602

RESUMO

Background and objective: Obtaining informed consent in neonatal emergency research is challenging. The aim of this study was to assess parental perceptions of informed consent following participation in a clinical trial in neonatal emergency care. Methods: This was a supplementary analysis of a randomised controlled trial comparing video and direct laryngoscopy for neonatal endotracheal intubation in the delivery room and neonatal intensive care unit. After obtaining informed consent for the clinical trial, parents were asked to answer a series of self-administered questions about their perceptions of clinical trial participation and the consent process. Informed consent had been given either before birth, after birth but before inclusion in the trial, or after inclusion in the trial. Results: We received responses from 33 mothers and 27 fathers (n = 60) of the 63 preterm and term infants who participated in the study. Fifty-three (89.8%, n = 59) parents agreed that infants should participate in clinical trials, and 51 (85%, n = 60) parents agreed that parents should be asked for informed consent. Fifty-three (89.8%, n = 59) parents felt that their infant's participation in this particular trial would be beneficial. Fifty-two (86.7%, n = 60) parents felt that the informed consent process was satisfactory. One parent (100%, n = 1) approached before birth, 23 parents (82.1%, n = 28) approached after birth but before enrolment and 26 (83.9%, n = 31) parents approached after enrolment were satisfied with the timing of the consent process. Eight (13.3%, n = 60) parents felt some pressure to provide informed consent. Of these, two (25%) were approached before enrolment and six (75%) were approached after enrolment. Conclusion: Parents valued their infant's participation in an emergency neonatal clinical trial and considered it important to be asked for consent. In this study, it seemed less important whether consent was obtained before or after the intervention. Future studies may need to investigate which form of consent is most acceptable to parents for the individual study in question.

3.
Trends Pharmacol Sci ; 43(12): 998-1000, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36123169

RESUMO

COVID-19 has put vaccine efficacy under a spotlight. However, the reluctance of people to be vaccinated has postponed the end of the COVID-19 pandemic. Currently, opioid vaccines are being developed, which could help prevent opioid addiction, overdoses, or relapse in combination with medication-assisted therapy. The fear is that the uptake of opioid vaccines could be met by the same reluctance as seen with COVID-19 vaccines.


Assuntos
COVID-19 , Vacinas , Humanos , COVID-19/prevenção & controle , Vacinas contra COVID-19 , Pandemias/prevenção & controle , Analgésicos Opioides
4.
Camb Q Healthc Ethics ; 31(3): 379-385, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35899549

RESUMO

Organ donation after brain death has been practiced in China since 2003 in the absence of brain death legislation. Similar to international standards, China's brain death diagnostic criteria include coma, absence of brainstem reflexes, and the lack of spontaneous respiration. The Chinese criteria require that the lack of spontaneous respiration must be verified with an apnea test by disconnecting the ventilator for 8 min to provoke spontaneous respiration. However, we have found publications in Chinese medical journals, in which the donors were declared to be brain dead, yet without an apnea test. The organ procurement procedures started with initiating "intratracheal intubation for mechanical ventilation after brain death," indicating that a brain death diagnosis was not performed. The purpose of the intubation was not to resuscitate the patient but rather was directly related to facilitating the explantation of organs. Moreover, it was unmistakably stated in two of these publications that the cardiac arrest was induced in these patients without brain death determination by cold St. Thomas cardioplegic solution or other cold myocardial protection solutions. This means that the condition of these donors neither met the criteria of brain death nor that of cardiac death. In other words, the "donor organs" may well have been procured in these cases from living human beings. Thus, brain death definition is abused in China by some individuals for organ harvesting, and a systematic investigation is needed to clarify the situation of organ donation after brain death in China.


Assuntos
Transplante de Órgãos , Obtenção de Tecidos e Órgãos , Apneia , Morte Encefálica/diagnóstico , China , Morte , Humanos , Doadores de Tecidos
8.
AJOB Neurosci ; 12(2-3): 198-200, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33960900
9.
J Integr Med ; 19(4): 295-299, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33789837

RESUMO

The widespread use of opioids to treat chronic pain led to a nation-wide crisis in the United States. Tens of thousands of deaths annually occur mainly due to respiratory depression, the most dangerous side effect of opioids. Non-opioid drugs and non-pharmacological treatments without addictive potential are urgently required. Traditional Chinese medicine (TCM) is based on a completely different medical theory than academic Western medicine. The scientific basis of acupuncture and herbal treatments as main TCM practices has been considerably improved during the past two decades, and large meta-analyses with thousands of patients provide evidence for their efficacy. Furthermore, opinion leaders in the United States favor non-pharmacological techniques including TCM for pain management to fight the opioid crisis. We advocate TCM as therapeutic option without addictive potential and without life-threatening side effects (e.g., respiratory depression) to treat chronic pain patients suffering from opioid misuse. The evidence suggests that: (1) opioid misuse cannot be satisfactorily managed with standard medication; (2) opinion leaders in the United States favor to consider non-opioid and non-pharmacological treatment strategies including those from TCM to treat acute and chronic pain conditions; (3) large meta-analyses provide scientific evidence for the clinical activity of acupuncture and herbal TCM remedies in the treatment of chronic pain. Future clinical trials should demonstrate the safety of TCM treatments if combined with Western medical practices to exclude negative interactions between both modalities.


Assuntos
Terapia por Acupuntura , Medicamentos de Ervas Chinesas , Epidemias , Analgésicos Opioides/efeitos adversos , Humanos , Medicina Tradicional Chinesa , Epidemia de Opioides , Estados Unidos
10.
Lancet Oncol ; 22(2): e68-e80, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33539755

RESUMO

Patients with childhood, adolescent, and young adult cancer who will be treated with gonadotoxic therapies are at increased risk for infertility. Many patients and their families desire biological children but effective communication about treatment-related infertility risk and procedures for fertility preservation does not always happen. The PanCareLIFE Consortium and the International Late Effects of Childhood Cancer Guideline Harmonization Group reviewed the literature and developed a clinical practice guideline that provides recommendations for ongoing communication methods for fertility preservation for patients who were diagnosed with childhood, adolescent, and young adult cancer at age 25 years or younger and their families. Moreover, the guideline panel formulated considerations of the ethical implications that are associated with these procedures. Grading of Recommendations Assessment, Development and Evaluation methodology was used to grade the evidence and recommendations. In this clinical practice guideline, existing evidence and international expertise are combined to develop transparent recommendations that are easy to use to facilitate ongoing communication between health-care providers and patients with childhood, adolescent, and young adult cancer who might be at high risk for fertility impairment and their families.


Assuntos
Sobreviventes de Câncer , Preservação da Fertilidade/ética , Guias como Assunto , Neoplasias/epidemiologia , Adolescente , Adulto , Criança , Progressão da Doença , Feminino , Preservação da Fertilidade/tendências , Humanos , Masculino , Neoplasias/complicações , Neoplasias/patologia , Neoplasias/terapia , Adulto Jovem
11.
Artigo em Inglês | MEDLINE | ID: mdl-33466370

RESUMO

Opioid abuse and misuse have led to an epidemic which is currently spreading worldwide. Since the number of opioid overdoses is still increasing, it is becoming obvious that current rather unsystematic approaches to tackle this health problem are not effective. This review suggests that fighting the opioid epidemic requires a structured public health approach. Therefore, it is important to consider not only scientific and biomedical perspectives, but societal implications and the lived experience of groups at risk as well. Hence, this review evaluates the risk factors associated with opioid overdoses and investigates the rates of chronic opioid misuse, particularly in the context of chronic pain as well as post-surgery treatments, as the entrance of opioids in people's lives. Linking pharmaceutical biology to narrative analysis is essential to understand the modulations of the usual themes of addiction and abuse present in the opioid crisis. This paper shows that patient narratives can be an important resource in understanding the complexity of opioid abuse and addiction. In particular, the relationship between chronic pain and social inequality must be considered. The main goal of this review is to demonstrate how a deeper transdisciplinary-enriched understanding can lead to more precise strategies of prevention or treatment of opioid abuse.


Assuntos
Comportamento Aditivo , Dor Crônica , Transtornos Relacionados ao Uso de Opioides , Analgésicos Opioides/uso terapêutico , Dor Crônica/tratamento farmacológico , Dor Crônica/epidemiologia , Humanos , Epidemia de Opioides , Transtornos Relacionados ao Uso de Opioides/tratamento farmacológico , Transtornos Relacionados ao Uso de Opioides/epidemiologia , Fatores Socioeconômicos
12.
Med Health Care Philos ; 24(1): 55-63, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33044602

RESUMO

Since a number of years, popular and scientific interest in resilience is rapidly increasing. More recently, also neuroscientific research in resilience and the associated neurobiological findings is gaining more attention. Some of these neuroscientific findings might open up new measures to foster personal resilience, ranging from magnetic stimulation to pharmaceutical interventions and awareness-based techniques. Therefore, bioethics should also take a closer look at resilience and resilience research, which are today philosophically under-theorized. In this paper, we analyze different conceptualizations of resilience and argue that especially one-sided understandings of resilience which dismiss social and cultural contexts of personal resilience do pose social and ethical problems. On a social level such unbalanced views on resilience could hide and thereby stabilize structural social injustices, and on an individual level it might even lead to an aggravation of stress-related mental health problems by overexerting the individual. Furthermore, some forms of fostering resilience could be a latent form of human enhancement and trigger similar criticisms.


Assuntos
Bioética , Neurociências , Humanos , Princípios Morais
13.
Artigo em Alemão | MEDLINE | ID: mdl-33067664

RESUMO

Novel immune therapies are more and more based on the molecular differentiation of disease patterns and related clinical studies are thus more often characterized by so-called adaptive study designs (umbrella or basket studies including platform studies), which are continuously adjusted based on novel results. This paper analyses new study designs beyond the often-postulated need for regulation in order to identify ethical problems based on typical structural features and to - whenever possible - suggest solutions. Additionally to the relationship between social and scientific values of a study as well as aspects of the scientific validity of new forms of evidence, the inclusion of study subjects under the condition of relative uncertainty, specific challenges in the process of ethical approval, as well as ethical and practical challenges in the process of informing patients and receiving informed consent will be addressed.


Assuntos
Consentimento Livre e Esclarecido , Princípios Morais , Alemanha , Humanos , Projetos de Pesquisa
14.
Toxicol Appl Pharmacol ; 399: 115030, 2020 07 15.
Artigo em Inglês | MEDLINE | ID: mdl-32387340

RESUMO

Plasticizers released from microplastic are increasingly viewed with concern. While adverse health effects induced by bisphenol A and its analogues on marine animals are well documented in the literature, the endocrine potential of bisphenolic compounds on human health remains elusive. We applied next generation sequencing (NGS) with the estrogen receptor α (ERα) positive human breast cancer cell line MCF-7 treated with 17-ß-estradiol (E2), bisphenol A (BPA), bisphenol B (BPB), bisphenol Z (BPZ) and tetramethyl bisphenol A (4MeBPA). We used molecular docking, microscale thermophoresis, ERα activation assay, and cell cycle experiments on MCF-7 and ERα overexpressing HEK293 cells to verify the impact of the compounds on ERα. 14 genes were found upregulated (ADORA1, DDIT4, CELSR2, FOSL2, JUN, HSPA13, IER3, IGF1R, PGR, RUNX2, SLC7A11, SLC7A2, SLC7A5, STC2) and 3 genes were downregulated (BCAS3, PHF19, PRKCD) in almost all samples. These genes are associated with cell growth, invasion, migration, apoptosis and cancer development. We further confirmed the binding, activation and proliferative effect of BPA, BPB, BPZ, and 4MeBPA on ERα. We provide evidence for the endocrine potential of bisphenolic compounds and give insights into their molecular effects in MCF-7 cells.


Assuntos
Compostos Benzidrílicos/farmacologia , Receptor alfa de Estrogênio/genética , Expressão Gênica/efeitos dos fármacos , Fenóis/farmacologia , Neoplasias da Mama/genética , Linhagem Celular , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Proliferação de Células/genética , Regulação para Baixo/efeitos dos fármacos , Regulação para Baixo/genética , Disruptores Endócrinos/farmacologia , Estradiol/genética , Estrogênios/genética , Feminino , Células HEK293 , Humanos , Células MCF-7 , Plastificantes/farmacologia , Transdução de Sinais/efeitos dos fármacos , Transdução de Sinais/genética , Regulação para Cima/efeitos dos fármacos , Regulação para Cima/genética
15.
Toxicol Appl Pharmacol ; 395: 114977, 2020 05 15.
Artigo em Inglês | MEDLINE | ID: mdl-32234386

RESUMO

Plastic in the ocean degrades to microplastic, thereby enhancing the leaching of incorporated plasticizers due to the increased particle surface. The uptake of microplastic-derived plasticizers by marine animals and the subsequent entry in the food chain raises concerns for adverse health effects in human beings. Frequently used plasticizers as the organophosphate ester tri-o-cresyl phosphate (TOCP) are known to affect the male reproductive system. However, the overall endocrine potential of TOCP and the underlying molecular mechanisms remain elusive as yet. In this study, we investigated the molecular effects of TOCP on estrogen receptor α (ERα)-transfected HEK-ESR1 cells and the human breast cancer cell line MCF-7. Applying virtual screening and molecular docking, we identified TOCP as potent ligand of ERα in silico. Microscale thermophoresis confirmed the binding in vitro with similar intensity as the natural ligand 17-ß-estradiol. To identify the molecular mechanisms of TOCP-mediated effects, we used next-generation sequencing to analyze the gene expression pattern of TOCP-treated MCF-7 cells. RNA-sequencing revealed 22 differently expressed genes associated with ESR1 as upstream regulator: CYP1A1, SLC7A11, RUNX2, DDIT4, STC2, KLHL24, CCNG2, CEACAM5, SLC7A2, MAP1B, SLC7A5, IGF1R, CD55, FOSL2, VEGFA, and HSPA13 were upregulated and PRKCD, CCNE1, CEBPA, SFPQ, TNFAIP2, KRT19 were downregulated. The affected genes promote tumor growth by increasing angiogenesis and nutritional supply, favor invasion and metastasis, and interfere with the cell cycle. Based on the gene expression pattern, we conclude TOCP to mediate endocrine effects on MCF-7 cells by interacting with ERα.


Assuntos
Neoplasias da Mama/patologia , Receptor alfa de Estrogênio/efeitos dos fármacos , Plastificantes/toxicidade , Tritolil Fosfatos/toxicidade , Neoplasias da Mama/genética , Ciclo Celular/genética , Disruptores Endócrinos , Receptor alfa de Estrogênio/genética , Receptor alfa de Estrogênio/metabolismo , Feminino , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Células HEK293 , Sequenciamento de Nucleotídeos em Larga Escala , Humanos , Células MCF-7 , Masculino , Modelos Moleculares , Simulação de Acoplamento Molecular , Invasividade Neoplásica/genética , Metástase Neoplásica/genética , Neovascularização Patológica/genética , RNA/química , Transfecção , Tritolil Fosfatos/metabolismo
16.
Toxicol Appl Pharmacol ; 396: 114995, 2020 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-32251684

RESUMO

Currently, the environmental impact of ubiquitous plastic debris triggered quite some public attention. However, the global impact of microplastic on human health is by and large either unknown or neglected. By looking at the underlying biochemical mechanisms leading to the global health threat microplastic was discovered to carry persistent organic pollutants, such as polycyclic aromatic hydrocarbons (PAH), to marine life. The effect of microplastic-ingestion in the human body remains unfortunately somewhat elusive as of yet. For this reason, we screened for compounds binding to the human estrogen receptor α (ERα) and identified the PAH compounds indeno[1,2,3-cd]pyrene (Indpy) and picene (Pice) with a high binding affinity. We applied next generation sequencing to analyze the differentially expressed genes in MCF-7 cells after treatment with Indpy and Pice. We found 8 upregulated genes: ABCC5, CCNG2, CYP1A1, DDIT4, IER3, RUNX2, STC2, and SLC7A5 and 14 downregulated genes: ADORA1, CEBPB, CELSR2, CTSD, CXCL12, KRT19, PGR, PKIB, RARA, RET, SEMA3B, SIAH2, TFAP2C, and XBP1 induced by both ligands and associated with ESR1-regulation. The altered gene expression may influence cell proliferation and metastasis, favoring cancer development with a poor response to therapy. In addition, we confirmed the binding of Indpy and Pice to ERα using molecular docking and microscale thermophoresis. ERα activation was measured with ESR1-overexpressing HEK293 (HEK-ESR1) cells and confirmed for Indpy. In conclusion, we showed an ESR1-mediated influence of the PAH compounds Indpy and Pice on the gene expression pattern of MCF-7 cells, possibly also promoting breast cancer development in patients.


Assuntos
Crisenos/farmacologia , Receptor alfa de Estrogênio/metabolismo , Expressão Gênica/efeitos dos fármacos , Pirenos/farmacologia , Transdução de Sinais/efeitos dos fármacos , Regulação da Expressão Gênica/efeitos dos fármacos , Humanos , Células MCF-7/efeitos dos fármacos , Simulação de Acoplamento Molecular , Reação em Cadeia da Polimerase em Tempo Real
19.
Phytomedicine ; 53: 319-331, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30190231

RESUMO

BACKGROUND: Practices of biopiracy to use genetic resources and indigenous knowledge by Western companies without benefit-sharing of those, who generated the traditional knowledge, can be understood as form of neocolonialism. HYPOTHESIS: The One-World Medicine concept attempts to merge the best of traditional medicine from developing countries and conventional Western medicine for the sake of patients around the globe. STUDY DESIGN: Based on literature searches in several databases, a concept paper has been written. Legislative initiatives of the United Nations culminated in the Nagoya protocol aim to protect traditional knowledge and regulate benefit-sharing with indigenous communities. The European community adopted the Nagoya protocol, and the corresponding regulations will be implemented into national legislation among the member states. Despite pleasing progress, infrastructural problems of the health care systems in developing countries still remain. Current approaches to secure primary health care offer only fragmentary solutions at best. Conventional medicine from industrialized countries cannot be afforded by the impoverished population in the Third World. Confronted with exploding costs, even health systems in Western countries are endangered to burst. Complementary and alternative medicine (CAM) is popular among the general public in industrialized countries, although the efficacy is not sufficiently proven according to the standards of evidence-based medicine. CAM is often available without prescription as over-the-counter products with non-calculated risks concerning erroneous self-medication and safety/toxicity issues. The concept of integrative medicine attempts to combine holistic CAM approaches with evidence-based principles of conventional medicine. CONCLUSION: To realize the concept of One-World Medicine, a number of standards have to be set to assure safety, efficacy and applicability of traditional medicine, e.g. sustainable production and quality control of herbal products, performance of placebo-controlled, double-blind, randomized clinical trials, phytovigilance, as well as education of health professionals and patients.


Assuntos
Cooperação Internacional , Medicina Tradicional , Plantas Medicinais , Roubo , Biodiversidade , Colonialismo , Terapias Complementares , Países em Desenvolvimento , Método Duplo-Cego , União Europeia , Medicina Baseada em Evidências , Humanos , Medicina Tradicional/normas , Naturologia , Patentes como Assunto , Controle de Qualidade , Automedicação
20.
Eur J Cancer ; 103: 227-237, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-30273888

RESUMO

AIMS: Survival after cancer diagnosed during childhood or adolescence continues to improve with new treatments and supportive therapies. Optimal long-term care requires that risks to vulnerable organs are clearly defined and translated into guidelines that are implemented into practice. PanCareLIFE is a pan-European consortium that addresses survivorship issues comprising fertility, hearing impairment and quality of life. This article describes the scientific basis of PanCareLIFE's studies. METHODS: PanCareLIFE involves 17 partner institutions from eight European countries, with additional 11 data providers from five other countries. Study designs and methods include molecular genetic, cohort and case-control studies, a longitudinal study and an intervention study. Ethics and data protection issues have been taken into account from the beginning. RESULTS: PanCareLIFE will investigate the way that treatment impairs female fertility, by evaluating anti-Müllerian hormone levels and the underlying genetic susceptibility to loss of fertility. For our fertility studies, more than 6000 survivors have completed questionnaires, more than 1500 provided serum samples and more than 400 case-control triads have been identified. Fertility preservation guidelines for boys and girls will be developed. More than 2000 survivors have contributed audiograms for the ototoxicity study. Almost 1000 samples were sent for genetic analysis related to ototoxicity and gonadal reserve. The SF-36 questionnaire will measure quality of life in more than 10,000 survivors. CONCLUSIONS: The large number of subjects enrolled in PanCareLIFE and the detailed information accumulated will allow in-depth evaluation of important outcomes. Fertility preservation guidelines will help patients and their families make informed decisions and contribute to their long-term well-being.


Assuntos
Qualidade de Vida/psicologia , Adolescente , Adulto , Criança , Pré-Escolar , Europa (Continente) , Estudos de Viabilidade , Feminino , Preservação da Fertilidade , Humanos , Lactente , Recém-Nascido , Assistência de Longa Duração , Masculino , Neoplasias , Projetos Piloto , Sobreviventes , Adulto Jovem
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...