192 research outputs found
Evidence-based planning and costing palliative care services for children : novel multi-method epidemiological and economic exemplar
Background:
Childrenās palliative care is a relatively new clinical specialty. Its nature is multi-dimensional and its delivery necessarily multi-professional. Numerous diverse public and not-for-profit organisations typically provide services and support. Because services are not centrally coordinated, they are provided in a manner that is inconsistent and incoherent. Since the first childrenās hospice opened in 1982, the epidemiology of life-limiting conditions has changed with more children living longer, and many requiring transfer to adult services. Very little is known about the number of children living within any given geographical locality, costs of care, or experiences of children with ongoing palliative care needs and their families. We integrated evidence, and undertook and used novel methodological epidemiological work to develop the first evidence-based and costed commissioning exemplar.
Methods:
Multi-method epidemiological and economic exemplar from a health and not-for-profit organisation perspective, to estimate numbers of children under 19 years with life-limiting conditions, cost current services, determine child/parent care preferences, and cost choice of end-of-life care at home.
Results:
The exemplar locality (North Wales) had important gaps in service provision and the clinical network. The estimated annual total cost of current childrenās palliative care was about Ā£5.5 million; average annual care cost per child was Ā£22,771 using 2007 prevalence estimates and Ā£2,437- Ā£11,045 using new 2012/13 population-based prevalence estimates. Using population-based prevalence, we estimate 2271 children with a life-limiting condition in the general exemplar population and around 501 children per year with ongoing palliative care needs in contact with hospital services. Around 24 children with a wide range of life-limiting conditions require end-of-life care per year. Choice of end-of-life care at home was requested, which is not currently universally available. We estimated a minimum (based on 1 week of end-of-life care) additional cost of Ā£336,000 per year to provide end-of-life support at home. Were end-of-life care to span 4 weeks, the total annual additional costs increases to Ā£536,500 (2010/11 prices).
Conclusions:
Findings make a significant contribution to population-based needs assessment and commissioning methodology in childrenās palliative care. Further work is needed to determine with greater precision which children in the total population require access to services and when. Half of children who died 2002-7 did not have conditions that met the globally used children's palliative care condition categories, which need revision in light of findings
An exploration of influences on womenās birthplace decision-making in New Zealand: a mixed methods prospective cohort within the Evaluating Maternity Units study
BACKGROUND: There is worldwide debate surrounding the safety and appropriateness of different birthplaces for well women. One of the primary objectives of the Evaluating Maternity Units prospective cohort study was to compare the clinical outcomes for well women, intending to give birth in either an obstetric-led tertiary hospital or a free-standing midwifery-led primary maternity unit. This paper addresses a secondary aim of the study ā to describe and explore the influences on womenās birthplace decision-making in New Zealand, which has a publicly funded, midwifery-led continuity of care maternity system. METHODS: This mixed method study utilised data from the six week postpartum survey and focus groups undertaken in the Christchurch area in New Zealand (2010ā2012). Christchurch has a tertiary hospital and four primary maternity units. The survey was completed by 82% of the 702 study participants, who were well, pregnant women booked to give birth in one of these places. All women received midwifery-led continuity of care, regardless of their intended or actual birthplace. RESULTS: Almost all the respondents perceived themselves as the main birthplace decision-makers. Accessing a āspecialist facilityā was the most important factor for the tertiary hospital group. The primary unit group identified several factors, including ācloseness to homeā, āease of accessā, the āatmosphereā of the unit and avoidance of āunnecessary interventionā as important. Both groups believed their chosen birthplace was the right and āsafeā place for them. The concept of āsafetyā was integral and based on the participantsā differing perception of safety in childbirth. CONCLUSIONS: Birthplace is a profoundly important aspect of womenās experience of childbirth. This is the first published study reporting New Zealand womenās perspectives on their birthplace decision-making. The groupsā responses expressed different ideologies about childbirth. The tertiary hospital group identified with the āmedical modelā of birth, and the primary unit group identified with the āmidwifery modelā of birth. Research evidence affirming the āclinical safetyā of primary units addresses only one aspect of the beliefs influencing womenās birthplace decision-making. In order for more women to give birth at a primary unit other aspects of womenās beliefs need addressing, and much wider socio-political change is required
Poly (ADP-ribose) Interacts With Phosphorylated Ī±-Synuclein in Post Mortem PD Samples
Poly (ADP-ribose) (PAR) is a negatively charged polymer that is biosynthesized by Poly (ADP-ribose) Polymerase-1 (PARP-1) and regulates various cellular processes. Alpha-synuclein (Ī±Syn) is an intrinsically disordered protein (IDP) that has been directly implicated with driving the onset and progression of Parkinsonās disease (PD). The mechanisms by which Ī±-synuclein (Ī±Syn) elicits its neurotoxic effects remain unclear, though it is well established that the main components of Lewy bodies (LBs) and Lewy neurites (LNs) in PD patients are aggregated hyperphosphorylated (S129) forms of Ī±Syn (pĪ±Syn). In the present study, we used immunofluorescence-based assays to explore if PARP-1 enzymatic product (PAR) promotes the aberrant cytoplasmic accumulation of pĪ±Syn. We also performed quantitative measurements using in situ proximity ligation assays (PLA) on a transgenic murine model of Ī±-synucleinopathy (M83-SNCAāA53T) and post mortem PD/PDD patient samples to characterize PARāpĪ±Syn interactions. Additionally, we used bioinformatic approaches and site-directed mutagenesis to identify PAR-binding regions on Ī±Syn. In summary, our studies show that PARāpĪ±Syn interactions are predominantly observed in PD-relevant transgenic murine models of Ī±Syn pathology and post mortem PD/PDD patient samples. Moreover, we confirm that the interactions between PAR and Ī±Syn involve electrostatic forces between negatively charged PAR and lysine residues on the N-terminal region of Ī±Syn
MetaBase--the wiki-database of biological databases.
Biology is generating more data than ever. As a result, there is an ever increasing number of publicly available databases that analyse, integrate and summarize the available data, providing an invaluable resource for the biological community. As this trend continues, there is a pressing need to organize, catalogue and rate these resources, so that the information they contain can be most effectively exploited. MetaBase (MB) (http://MetaDatabase.Org) is a community-curated database containing more than 2000 commonly used biological databases. Each entry is structured using templates and can carry various user comments and annotations. Entries can be searched, listed, browsed or queried. The database was created using the same MediaWiki technology that powers Wikipedia, allowing users to contribute on many different levels. The initial release of MB was derived from the content of the 2007 Nucleic Acids Research (NAR) Database Issue. Since then, approximately 100 databases have been manually collected from the literature, and users have added information for over 240 databases. MB is synchronized annually with the static Molecular Biology Database Collection provided by NAR. To date, there have been 19 significant contributors to the project; each one is listed as an author here to highlight the community aspect of the project
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Ten new insights in climate science 2022
Non-technical summary
We summarize what we assess as the past year's most important findings within climate change research: limits to adaptation, vulnerability hotspots, new threats coming from the climateāhealth nexus, climate (im)mobility and security, sustainable practices for land use and finance, losses and damages, inclusive societal climate decisions and ways to overcome structural barriers to accelerate mitigation and limit global warming to below 2Ā°C.
Technical summary
We synthesize 10 topics within climate research where there have been significant advances or emerging scientific consensus since January 2021. The selection of these insights was based on input from an international open call with broad disciplinary scope. Findings concern: (1) new aspects of soft and hard limits to adaptation; (2) the emergence of regional vulnerability hotspots from climate impacts and human vulnerability; (3) new threats on the climateāhealth horizon ā some involving plants and animals; (4) climate (im)mobility and the need for anticipatory action; (5) security and climate; (6) sustainable land management as a prerequisite to land-based solutions; (7) sustainable finance practices in the private sector and the need for political guidance; (8) the urgent planetary imperative for addressing losses and damages; (9) inclusive societal choices for climate-resilient development and (10) how to overcome barriers to accelerate mitigation and limit global warming to below 2Ā°C.
Social media summary
Science has evidence on barriers to mitigation and how to overcome them to avoid limits to adaptation across multiple fields
Assessing the human immune system through blood transcriptomics
Blood is the pipeline of the immune system. Assessing changes in transcript abundance in blood on a genome-wide scale affords a comprehensive view of the status of the immune system in health and disease. This review summarizes the work that has used this approach to identify therapeutic targets and biomarker signatures in the field of autoimmunity and infectious disease. Recent technological and methodological advances that will carry the blood transcriptome research field forward are also discussed
Self-organization of the human embryo in the absence of maternal tissues.
Remodelling of the human embryo at implantation is indispensable for successful pregnancy. Yet it has remained mysterious because of the experimental hurdles that beset the study of this developmental phase. Here, we establish an inĀ vitro system to culture human embryos through implantation stages in the absence of maternal tissues and revealĀ the key events of early human morphogenesis. These include segregation of the pluripotent embryonic and extra-embryonic lineages, and morphogenetic rearrangements leading to generation of a bilaminar disc, formation of a pro-amniotic cavity within the embryonic lineage, appearance of the prospective yolk sac, and trophoblast differentiation. Using human embryos and human pluripotent stem cells, we show that the reorganization of the embryonic lineage is mediated by cellular polarization leading to cavity formation. Together, our results indicate that the critical remodelling events at this stage of human development are embryo-autonomous, highlighting the remarkable and unanticipated self-organizing properties of human embryos.This work was supported by the Wellcome Trust grant to M.Z- G. Work in Dr. K.K.N lab was supported by The Francis Crick Institute, which receives its core funding from Cancer Research UK, the Medical Research Council and the Wellcome Trust. Dr. M.N.S. was initially supported by a Ramon Areces Spanish Foundation Fellowship, and subsequently by an EMBO Postdoctoral Fellowship. Dr. S.V was supported by a Post Doc Pool Grant from the Finnish Cultural Foundation. Dr. GR was supported by a Newton Fellowship.This is the author accepted manuscript. It is currently under an indefinite embargo pending publication by Nature Publishing Group
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