13 research outputs found
The authority of next-of-kin in explicit and presumed consent systems for deceased organ donation: an analysis of 54 nations
Background. The degree of involvement by the next-of-kin in deceased organ procurement worldwide is unclear. We investigated the next-of-kin’s authority in the procure-ment process in nations with either explicit or presumed consent. Methods. We collected data from 54 nations, 25 with presumed consent and 29 with explicit consent. We char-acterized the authority of the next-of-kin in the decision to donate deceased organs. Specifically, we examined whether the next-of-kin’s consent to procure organs was always required and whether the next-of-kin were able to veto procurement when the deceased had expressed a wish to donate. Results. The next-of-kin are involved in the organ procure-ment process in most nations regardless of the consent principle and whether the wishes of the deceased to be a donor were expressed or unknown. Nineteen of the 25 nations with presumed consent provide a method for individuals to express a wish to be a donor. However, health professionals in only four of these nations responded that they do not override a deceased’s expressed wish because of a family’s objection. Similarly, health profes-sionals in only four of the 29 nations with explicit consent proceed with a deceased’s pre-existing wish to be a donor and do not require next-of-kin’s consent, but caveats still remain for when this is done. Conclusions. The next-of-kin have a considerable influ-ence on the organ procurement process in both presumed and explicit consent nations
Anonymous Women? A Scoping Review of the Experiences of Women in Gamblers Anonymous (GA)
Women are participating in gambling at levels approaching those of men, and although levels of disordered gambling remain lower in women than in men, significant numbers are affected. Gamblers Anonymous (GA) is a mainstay of help to problem gamblers in many countries. A scoping review was conducted which specifically addressed the experiences of women who attend GA. Within the 25 identified relevant studies, only two reported empirical data on the specific numbers of women attending. A range of barriers still remain to the participation of women in these communities. These include ‘external’ barriers such as lack of referral and signposting, lack of accessible meetings, and costs of travel; ‘internal’ barriers such as shame, stigma, and fear of disclosure; and features of the GA meetings and discourse, such as a climate which is dismissive of women’s experiences
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A natural killer–dendritic cell axis defines checkpoint therapy–responsive tumor microenvironments
Intratumoral stimulatory dendritic cells (SDCs) play an important role in stimulating cytotoxic T cells and driving immune responses against cancer. Understanding the mechanisms that regulate their abundance in the tumor microenvironment (TME) could unveil new therapeutic opportunities. We find that in human melanoma, SDC abundance is associated with intratumoral expression of the gene encoding the cytokine FLT3LG. FLT3LG is predominantly produced by lymphocytes, notably natural killer (NK) cells in mouse and human tumors. NK cells stably form conjugates with SDCs in the mouse TME, and genetic and cellular ablation of NK cells in mice demonstrates their importance in positively regulating SDC abundance in tumor through production of FLT3L. Although anti-PD-1 'checkpoint' immunotherapy for cancer largely targets T cells, we find that NK cell frequency correlates with protective SDCs in human cancers, with patient responsiveness to anti-PD-1 immunotherapy, and with increased overall survival. Our studies reveal that innate immune SDCs and NK cells cluster together as an excellent prognostic tool for T cell-directed immunotherapy and that these innate cells are necessary for enhanced T cell tumor responses, suggesting this axis as a target for new therapies