Publications by authors named "Wendy Dean"

Objective: To date, research and policy directives have focused on identifying individual risk factors for moral injury, with less attention to solutions for establishing non-morally injurious cultures and practices.

Methods: Experts with academic or clinical knowledge of moral injury were recruited to a three-round e-Delphi survey exploring descriptors and characteristics of non-morally injurious organisations.

Results: Forty-nine, forty-one and thirty-nine experts responded at each round.

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The role of the chorio-allantoic placenta as the critical nutrient- and oxygen-supplying organ to nourish the demands of the fetus has been well recognized. This function relies on the successful establishment of the placental feto-maternal exchange unit, or interhaemal barrier, across which all nutrients as well as waste products must pass to cross from the maternal to the fetal blood circulation, or vice versa, respectively. As a consequence, defects in the establishment of this elaborate interface lead to fetal growth retardation or even embryonic lethality, depending on the severity of the defect.

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Background: Moral injury had been discussed by health care professionals as a cause of occupational distress prior to COVID-19, but the pandemic expanded the appeal and investigation of the term. Moral injury incorporates more than the transdiagnostic symptoms of exhaustion and cynicism and goes beyond operational, demand-resource mismatches of corporatized systems.

Observations: Moral injury describes the frustration, anger, and helplessness associated with existential threats to a clinician's professional identity as business interests erode their ability to put patients' needs ahead of corporate and health system obligations.

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In Brief: Advanced maternal age is associated with a higher rate of pregnancy complications that are unrelated to karyotypic abnormalities of the oocyte. This study shows that the murine uterine stroma undergoes profound epigenetic changes affecting active and repressive histone modification profiles that are associated with impaired endometrial functionality and underpin the decline in reproductive performance of aged females.

Abstract: Decidualization describes the transformation of the uterine stroma in response to an implanting embryo, a process critical for supporting the development of the early embryo, for ensuring normal placentation and ultimately for a healthy reproductive outcome.

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Article Synopsis
  • - COVID-19 has significantly increased distress among healthcare workers, with research often focusing on specific aspects or groups rather than a comprehensive view.
  • - A large-scale survey was conducted with nearly 2,000 staff from a major medical center, revealing high rates of moral injury (40.9%), burnout (35.3%-60.6%), depression (25.4%), and anxiety (24.8%).
  • - Alarmingly, 8.1% of respondents reported experiencing self-harm thoughts for several days or more, indicating that healthcare workers in various roles are facing critical, unsustainable levels of distress.
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Article Synopsis
  • Dr. Jay Neufeld's story talks about how he, a doctor, faced a lot of emotional pain while taking care of sick kids.
  • He shows how this pain affects not just doctors but also the patients and their families.
  • The story highlights three main problems that cause this pain: rules from health insurance, complicated medical records, and hospitals that care more about making money than helping people.
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Normal developmental progression relies on close interactions between the embryonic and extraembryonic lineages in the pre- and peri-gastrulation stage conceptus. For example, mouse epiblast-derived FGF and NODAL signals are required to maintain a stem-like state in trophoblast cells of the extraembryonic ectoderm, while visceral endoderm signals are pivotal to pattern the anterior region of the epiblast. These developmental stages also coincide with the specification of the first heart precursors.

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Morphogenesis requires highly coordinated, complex interactions between cellular processes: proliferation, migration, and apoptosis, along with physical tissue interactions. How these cellular and tissue dynamics drive morphogenesis remains elusive. Three dimensional (3D) microscopic imaging poses great promise, and generates elegant images.

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Article Synopsis
  • The placenta is a special organ made from both the mother and the baby’s cells, and it helps the baby grow by providing nutrients and helping create important organs.
  • Scientists want to learn more about how the placenta develops because it's important for having a healthy pregnancy and good health later in life.
  • New research is using stem cells and other models to better study the placenta and understand pregnancy problems, which might help create better treatments for those issues in the future.
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Placental abnormalities have been sporadically implicated as a source of developmental heart defects. Yet it remains unknown how often the placenta is at the root of congenital heart defects (CHDs), and what the cellular mechanisms are that underpin this connection. Here, we selected three mouse mutant lines, Atp11a, Smg9 and Ssr2, that presented with placental and heart defects in a recent phenotyping screen, resulting in embryonic lethality.

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DNA methylation is a repressive epigenetic modification that is essential for development, exemplified by the embryonic and perinatal lethality observed in mice lacking de novo DNA methyltransferases (DNMTs). Here we characterise the role for DNMT3A, 3B and 3L in gene regulation and development of the mouse placenta. We find that each DNMT establishes unique aspects of the placental methylome through targeting to distinct chromatin features.

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Advanced maternal age (AMA) poses the single greatest risk to a successful pregnancy. Apart from the impact of AMA on oocyte fitness, aged female mice often display defects in normal placentation. Placental defects in turn are tightly correlated with brain and cardiovascular abnormalities.

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Pathways of DNA Demethylation.

Adv Exp Med Biol

November 2022

The regulation of the genome relies on the overlying epigenome to instruct, define, and restrict the activities of cellular differentiation and growth integral to embryonic development, as well as defining the key activities of terminally differentiated cell types. These instructions are positioned as readers, writers, and erasers in their functional roles. Among the sizeable repertoire of epigenetic instructions, DNA methylation is perhaps the best understood process.

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The Centers for Medicare and Medicaid Services mandates physicians' responsibility for making sure that reimbursement for services physicians provide to patients is accurate and appropriate. Yet the shift of physician practice ownership to various employment models has amplified a dilemma. Physicians working as employees for some US health care companies might not know about services billed in their name, much less be able to review or contest when, which, to whom, or at what costs services were billed.

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Histone citrullination is a relatively poorly studied epigenetic modification that involves the irreversible conversion of arginine residues into citrulline. It is conferred by a small family of enzymes known as protein arginine deiminases (PADIs). PADI function supports the pluripotent state of embryonic stem cells, but in other contexts, also promotes efficient cellular differentiation.

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Complex morphological traits are the product of many genes with transient or lasting developmental effects that interact in anatomical context. Mouse models are a key resource for disentangling such effects, because they offer myriad tools for manipulating the genome in a controlled environment. Unfortunately, phenotypic data are often obtained using laboratory-specific protocols, resulting in self-contained datasets that are difficult to relate to one another for larger scale analyses.

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PhenomenonMoral distress, which occurs when someone's moral integrity is seriously compromised because they feel unable to act in accordance with their core values and obligations, is an increasingly important concern for physicians. Due in part to limited understanding of the root causes of moral distress, little is known about which approaches are most beneficial for mitigating physicians' distress. Our objective was to describe system-level factors in United States (U.

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Article Synopsis
  • Being a public servant, like police officers or healthcare workers, can be tough because they sometimes have to put aside their own beliefs to help others.
  • Moral injury happens when they feel conflicted about their values while doing their jobs.
  • Understanding how these values are affected can help support those public servants and keep them connected to their important work.
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