Purpose: Patients with metastatic cancer benefit from advance care planning (ACP) conversations. We aimed to improve ACP using a computer model to select high-risk patients, with shorter predicted survival, for conversations with providers and lay care coaches. Outcomes included ACP documentation frequency and end-of-life quality measures.
View Article and Find Full Text PDFPalliative care (PC) benefits patients with serious illness including end-stage liver disease (ESLD). As part of a cluster randomized trial, hepatologists were trained to deliver primary palliative care to patients with ESLD using an online course, Palliative Care Always: Hepatology (PCA:Hep). Here we present a multimethod formative evaluation (feasibility, knowledge acquisition, self-efficacy, and practice patterns) of PCA:Hep.
View Article and Find Full Text PDFIn cnidarian-Symbiodiniaceae symbioses, algal endosymbiont population control within the host is needed to sustain a symbiotic relationship. However, the molecular mechanisms that underlie such population control are unclear. Here we show that a cnidarian host uses nitrogen limitation as a primary mechanism to control endosymbiont populations.
View Article and Find Full Text PDFThe global decline of reef-building corals is due in part to the loss of algal symbionts, or "bleaching," during the increasingly frequent periods of high seawater temperatures. During bleaching, endosymbiotic dinoflagellate algae (Symbiodinium spp.) either are lost from the animal tissue or lose their photosynthetic pigments, resulting in host mortality if the Symbiodinium populations fail to recover.
View Article and Find Full Text PDFThe cnidarian-dinoflagellate mutualism is integral to the survival of the coral-reef ecosystem. Despite the enormous ecological and economic importance of corals, their cellular and molecular biology and the ways in which they respond to environmental change are still poorly understood. We have been developing a proxy system for examining the coral mutualism in which the dinoflagellate symbiont Symbiodinium is introduced into a clonal population of the host Aiptasia, a small sea anemone closely related to corals.
View Article and Find Full Text PDFPlatelet aggregation requires activation of the alphaIIbbeta3 integrin, an event regulated by the integrin cytoplasmic tails. CIB1 binds to the cytoplasmic tail of the integrin alphaIIb subunit. Previous over-expression and knockdown studies in murine megakaryocytes demonstrated that CIB1 inhibits integrin alphaIIbbeta3 activation.
View Article and Find Full Text PDFProper platelet function is essential for hemostasis. However, understanding platelet function is complicated by the fact that platelets are anucleate and therefore not amenable to direct genetic manipulations. To study platelet function, several laboratories have developed CHO cell lines expressing platelet proteins or used megakaryocyte-like cell lines.
View Article and Find Full Text PDFPurpose Of Review: Integrin alphaIIbbeta3 activation is essential for platelet aggregation and related hemostatic events. In recent years, intense effort has been put forward to understand the molecular mechanisms regulating platelet integrin alphaIIbbeta3 activation. Here we review the current models of alphaIIbbeta3 activation and highlight the potential regulatory roles of proteins that interact directly with the alphaIIbbeta3 cytoplasmic domains, with emphasis on the alphaIIb cytoplasmic domain binding protein, CIB1.
View Article and Find Full Text PDFThe regulation of signal transduction plays a key role in cell fate choices, and its disregulation contributes to oncogenesis. This duality is exemplified by the tumor suppressor APC. Originally identified for its role in colon tumors, APC family members were subsequently shown to negatively regulate Wnt signaling in both development and disease.
View Article and Find Full Text PDF