ATLANTIC EPIPHYTES: a data set of vascular and non-vascular epiphyte plants and lichens from the Atlantic Forest

Epiphytes are hyper-diverse and one of the frequently undervalued life forms in plant surveys and biodiversity inventories. Epiphytes of the Atlantic Forest, one of the most endangered ecosystems in the world, have high endemism and radiated recently in the Pliocene. We aimed to (1) compile an extensive Atlantic Forest data set on vascular, non-vascular plants (including hemiepiphytes), and lichen epiphyte species occurrence and abundance; (2) describe the epiphyte distribution in the Atlantic Forest, in order to indicate future sampling efforts. Our work presents the first epiphyte data set with information on abundance and occurrence of epiphyte phorophyte species. All data compiled here come from three main sources provided by the authors: published sources (comprising peer-reviewed articles, books, and theses), unpublished data, and herbarium data. We compiled a data set composed of 2,095 species, from 89,270 holo/hemiepiphyte records, in the Atlantic Forest of Brazil, Argentina, Paraguay, and Uruguay, recorded from 1824 to early 2018. Most of the records were from qualitative data (occurrence only, 88%), well distributed throughout the Atlantic Forest. For quantitative records, the most common sampling method was individual trees (71%), followed by plot sampling (19%), and transect sampling (10%). Angiosperms (81%) were the most frequently registered group, and Bromeliaceae and Orchidaceae were the families with the greatest number of records (27,272 and 21,945, respectively). Ferns and Lycophytes presented fewer records than Angiosperms, and Polypodiaceae were the most recorded family, and more concentrated in the Southern and Southeastern regions. Data on non-vascular plants and lichens were scarce, with a few disjunct records concentrated in the Northeastern region of the Atlantic Forest. For all non-vascular plant records, Lejeuneaceae, a family of liverworts, was the most recorded family. We hope that our effort to organize scattered epiphyte data help advance the knowledge of epiphyte ecology, as well as our understanding of macroecological and biogeographical patterns in the Atlantic Forest. No copyright restrictions are associated with the data set. Please cite this Ecology Data Paper if the data are used in publication and teaching events. © 2019 The Authors. Ecology © 2019 The Ecological Society of Americ

Patient\u27s Perspective of Shared Decision-Making in Rheumatoid Arthritis Treatment: A Grounded Theory Exploration

Current guidelines for rheumatoid arthritis (RA) treatment state that all decisions should be shared with the patient. Therefore, it becomes necessary to understand in-depth how patients with RA with different levels of health literacy and activation feel about sharing the decision with the health professional and how they experience this process. Grounded theory was used. Data collection included semi-structured interviews with 14 patients with RA. From the analysis of the patients’ narratives, four categories were built: “Accepting the changes: non-shared decisions”; “The patient\u27s rationale: why not share?”; “Reaching the requirements for sharing the decision: expanding the patient’s autonomy ; and Experiencing the sharing of the decision: ‘there is no point in changing, if I do not use it’. The results revealed that patients do not feel involved nor prepared to make decisions regarding their pharmacotherapy, even though they often engage in decision-making on their own. Some feel invisible as they are not included in the process. Those who feel unprepared for sharing the decision recognize that they could achieve it by acquiring the necessary knowledge. The theoretical model developed explains that shared decision-making is a way to consider the patient\u27s experiences with the use of medicines and prevent them from making helpless decisions

DNA hypomethylating agents increase activation and cytolytic activity of CD8(+) T cells

International audienceWe demonstrate that DNA hypomethylating agent (HMA) treatment can directly modulate the anti-tumor response and effector function of CD8(+) T cells. In vivo HMA treatment promotes CD8(+) T cell tumor infiltration and suppresses tumor growth via CD8(+) T cell-dependent activity. Ex vivo, HMAs enhance primary human CD8(+) T cell activation markers, effector cytokine production, and anti-tumor cytolytic activity. Epigenomic and transcriptomic profiling shows that HMAs vastly regulate T cell activation-related transcriptional networks, culminating with over-activation of NFATc1 short isoforms. Mechanistically, demethylation of an intragenic CpG island immediately downstream to the 3’ UTR of the short isoform was associated with antisense transcription and alternative polyadenylation of NFATc1 short isoforms. High-dimensional single-cell mass cytometry analyses reveal a selective effect of HMAs on a subset of human CD8(+) T cell subpopulations, increasing both the number and abundance of a granzyme B(high), perforin(high) effector subpopulation. Overall, our findings support the use of HMAs as a therapeutic strategy to boost anti-tumor immune response