1,263 results match your criteria: "Washington University Medical School.[Affiliation]"

Comparative connectomics of the primate social brain.

Neuroimage

December 2021

Laboratory for Brain Connectomics Imaging, RIKEN Center for Biosystems Dynamics Research, 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe 650-0047, Japan; School of Medicine, Kyoto University, Kyoto, Japan. Electronic address:

Social interaction is thought to provide a selection pressure for human intelligence, yet little is known about its neurobiological basis and evolution throughout the primate lineage. Recent advances in neuroimaging have enabled whole brain investigation of brain structure, function, and connectivity in humans and non-human primates (NHPs), leading to a nascent field of comparative connectomics. However, linking social behavior to brain organization across the primates remains challenging.

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Neurotoxins subvert the allosteric activation mechanism of SARM1 to induce neuronal loss.

Cell Rep

October 2021

Department of Genetics, Washington University Medical School, St. Louis, MO 63110, USA; Needleman Center for Neurometabolism and Axonal Therapeutics, Washington University School of Medicine in Saint Louis, St. Louis, MO 63114, USA. Electronic address:

SARM1 is an inducible TIR-domain NAD hydrolase that mediates pathological axon degeneration. SARM1 is activated by an increased ratio of NMN to NAD, which competes for binding to an allosteric activating site. When NMN binds, the TIR domain is released from autoinhibition, activating its NAD hydrolase activity.

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Cardiovascular disease remains the leading cause of morbidity and mortality for women in United States and worldwide. One in 3 women dies from cardiovascular disease, and 45% of women >20 years old have some form of CVD. Historically, women have had higher morbidity and mortality after cardiac surgery.

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Background: As evidence demonstrating the importance of early transfusions in trauma resuscitation accumulates, when RhD-negative products might not be available, it is important to understand the nature of the RhD-type of products provided to bleeding pediatric patients of potentially unknown RhD-type.

Methods: A survey link was electronically sent to the transfusion service medical director and/or laboratory manager at American pediatric Level I and Level II hospitals inquiring about their practices for selecting RhD-type of uncrossmatched red blood cells (RBC) or low titer group O whole blood (LTOWB) for boys and girls.

Results: There were 55/117 (47.

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Two distinct subphenotypes have been identified in acute respiratory distress syndrome (ARDS), but the presence of subgroups in ARDS associated with coronavirus disease (COVID-19) is unknown. To identify clinically relevant, novel subgroups in COVID-19-related ARDS and compare them with previously described ARDS subphenotypes. Eligible participants were adults with COVID-19 and ARDS at Columbia University Irving Medical Center.

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Modulation of bioelectric cues in the evolution of flying fishes.

Curr Biol

November 2021

Department of Orthopaedic Research, Boston Children's Hospital, Boston, MA 02124, USA; Department of Genetics, Harvard Medical School, Boston, MA 02124, USA. Electronic address:

Changes to allometry, or the relative proportions of organs and tissues within organisms, is a common means for adaptive character change in evolution. However, little is understood about how relative size is specified during development and shaped during evolution. Here, through a phylogenomic analysis of genome-wide variation in 35 species of flying fishes and relatives, we identify genetic signatures in both coding and regulatory regions underlying the convergent evolution of increased paired fin size and aerial gliding behaviors.

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The SCHOLAR-1 international retrospective study highlighted poor clinical outcomes and survival among patients with refractory large B-cell lymphoma (LBCL) treated with conventional chemotherapy. Axicabtagene ciloleucel (axi-cel), an autologous anti-CD19 chimeric antigen receptor (CAR) T-cell therapy, demonstrated durable responses in patients with refractory LBCL in the pivotal phase 1/2 ZUMA-1 study (NCT02348216). Here, we compared SCHOLAR-1 with the 2-year outcomes of ZUMA-1.

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A critical appraisal of registry-based objective performance goals in peripheral arterial disease.

J Vasc Surg

September 2021

Department of Surgery, Division of Vascular and Endovascular Surgery, San Francisco Medical School, University of California, San Francisco, Calif.

The multidisciplinary Superficial Femoral Artery-Popliteal EvidencE Development (SPEED) Study Group, under the auspices of the Registry Assessment of Peripheral Interventional Devices (RAPID) partnership, recently published objective performance goals for peripheral vascular interventions in the femoropopliteal arteries. Retrospective outcomes from the Vascular Quality Initiative provided the sole study data source. Strengths and weaknesses of this landmark effort are examined.

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Background: Understanding how to translate research discoveries into solutions for healthcare improvement is a priority of NIH-funded Clinical and Translational Science Awards (CTSA). This study, supported by one CTSA, aims to capture one process of shaping and implementing innovations to advance the timeliness and patient-centeredness of cardiovascular care. Specifically, we sought to understand a partnership between a private digital health startup company, a university innovation lab, and an academic health system's cardiology program pursuing this goal.

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Neurocognition in Kenyan youth at clinical high risk for psychosis.

Schizophr Res Cogn

September 2021

Africa Mental Health Research and Training Foundation, Nairobi, Kenya.

Introduction: Cognitive deficits are typically seen in schizophrenia and in the prodrome, and are a major predictor of functional outcomes in patients. In Africa, few studies have investigated neurocognition in psychosis, which presents a gap in our understanding of the heterogeneity of the illness. In this study, we assessed neurocognition among the largest sample of psychosis-risk participants recruited in the continent to date.

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Psychotic-like experiences among 9,564 Kenyan adolescents and young adults.

Psychiatry Res

August 2021

Africa Mental Health Research and Training Foundation, Nairobi, Kenya; Department of Psychiatry, University of Nairobi, Kenya.

Objective: To investigate the prevalence and characteristics of psychotic-like experiences (PLE) in a large cohort of Kenyan adolescents and young adults.

Method: The Washington Early Recognition Center Affectivity and Psychosis (WERCAP) Screen was used to the study the 12-month prevalence of PLE's among 9,564 Kenyan youths (aged 15-25 yrs), and the rates of psychosis high-risk (HR) and medium-risk (MR) cases, based on cut-off scores. Relationships with clinical, demographic and economic profiles were investigated.

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The utility of single copy transgenic insertions in is often limited by low expression. We examined the effects of modifying the trans-splicing signal, the Kozak ribosome binding site, the N-terminal amino acid of the reporter and the 3' UTR sequences on the expression level of a promoter GFP transgene. The trans-splicing signal and the 3' UTR had most dramatic effects on expression while modifying the Kozak signal or the N-terminal amino acid had less influence on expression.

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Reoperative Partial Nephrectomy-Does Previous Surgical Footprint Impact Outcomes?

J Urol

September 2021

Urologic Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.

Purpose: Historically, open techniques have been favored over minimally invasive approaches for complex surgeries. We aimed to identify differences in perioperative outcomes, surgical footprints, and complication rates in patients undergoing either open or robotic reoperative partial nephrectomy.

Materials And Methods: A retrospective review of patients undergoing reoperative partial nephrectomy was performed.

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Survey of newborn direct antiglobulin testing practice in United States and Canadian transfusion services.

Transfusion

April 2021

Division of Transfusion Medicine, Department of Pathology and Laboratory Medicine, New York Presbyterian Hospital, Weill Cornell Medicine, New York, New York, USA.

Background: We hypothesized that variability in practice exists for newborn immunohematology testing due to lack of consensus guidelines. We report the results of a survey assessing that variability at hospitals in the United States and Canada.

Study Design And Methods: An AABB Pediatric Subsection working party developed and validated a survey of newborn immunohematology testing practice.

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Background: Belinostat is a histone deacetylase inhibitor approved for relapsed refractory peripheral T-cell lymphoma (PTCL). The primary objective of this study was to determine the maximum tolerated dose (MTD) of belinostat combined with CHOP (Bel-CHOP). Secondary objectives included safety/tolerability, overall response rate (ORR), and belinostat pharmacokinetics (PK).

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Background: Metabolic syndrome (MetS) is an abnormal physiological condition that has been increasingly identified as a risk factor for complications after orthopedic surgery. Given the lack of information on the effect of MetS in shoulder arthroplasty (SA), this investigation analyzed the rates of postoperative complications and implant survivorship free from reoperation and revision in patients with and without MetS.

Methods: Between 2007 and 2017, data from 4635 adults who underwent a primary SA were collected and classified based on the presence or absence of MetS.

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Multi-modal neuroimaging projects such as the Human Connectome Project (HCP) and UK Biobank are advancing our understanding of human brain architecture, function, connectivity, and their variability across individuals using high-quality non-invasive data from many subjects. Such efforts depend upon the accuracy of non-invasive brain imaging measures. However, 'ground truth' validation of connectivity using invasive tracers is not feasible in humans.

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Long-term success following human lung transplantation is poor due to chronic rejection. We demonstrated circulating exosomes of lung origin during acute and chronic lung allograft rejection. We analyzed plasma from pediatric lung transplant recipients (LTxRs) enrolled in the CTOT-C-03 to determine whether circulating exosomes are released into circulation during bronchiolitis obliterans syndrome (BOS).

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Proteomic and functional mapping of cardiac NaV1.5 channel phosphorylation sites.

J Gen Physiol

February 2021

Université de Nantes, Centre national de la recherche scientifique, Institut National de la Santé et de la Recherche Médicale, l'Institut du thorax, Nantes, France.

Phosphorylation of the voltage-gated Na+ (NaV) channel NaV1.5 regulates cardiac excitability, yet the phosphorylation sites regulating its function and the underlying mechanisms remain largely unknown. Using a systematic, quantitative phosphoproteomic approach, we analyzed NaV1.

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Article Synopsis
  • * A total of 359 samples from 89 hospitalized patients showed that over half developed antibodies simultaneously, with IgG seroconversion occurring around 8 days post-symptom onset on average.
  • * Results indicated that immunocompromised patients and those under 65 had a delayed and lower antibody response, which could influence serologic testing strategies in managing COVID-19.
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