3,605 results match your criteria: "Children's Hospital and Harvard Medical SChool[Affiliation]"

Background: Parents' views toward pediatric palliative care (PPC) remain underexplored, especially in low/middle-income countries where care relies heavily on families. A better understanding of parents' perspectives would inform strategies to support PPC integration into the care of children with cancer. This multicenter study aimed to examine knowledge, attitudes, and beliefs toward PPC among parents of children with cancer in Lebanon to uncover areas for improvement and determine associated factors.

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Background: Paenibacillus thiaminolyticus may be an underdiagnosed cause of neonatal sepsis.

Methods: We prospectively enrolled a cohort of 800 full-term neonates presenting with a clinical diagnosis of sepsis at 2 Ugandan hospitals. Quantitative polymerase chain reaction specific to P.

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The regulated disruption of the plasma membrane, which can promote cell death, cytokine secretion or both is central to organismal health. The protein gasdermin D (GSDMD) is a key player in this process. GSDMD forms membrane pores that can promote cytolysis and the release of interleukin-1 family cytokines into the extracellular space.

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ACDC: a general approach for detecting phenotype or exposure associated co-expression.

Front Med (Lausanne)

May 2023

Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States.

Background: Existing module-based differential co-expression methods identify differences in gene-gene relationships across phenotype or exposure structures by testing for consistent changes in transcription abundance. Current methods only allow for assessment of co-expression variation across a singular, binary or categorical exposure or phenotype, limiting the information that can be obtained from these analyses.

Methods: Here, we propose a novel approach for detection of differential co-expression that simultaneously accommodates multiple phenotypes or exposures with binary, ordinal, or continuous data types.

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Our knowledge is still limited about the characteristics and treatment of rare lung tumors. The aim of our study was to determine programmed cell death ligand-1 (PD-L1) and programmed cell death-1 (PD-1) expression in rare pulmonary tumors to assess the potential role of immunotherapy. 66 pathologically confirmed rare lung tumors including 26 mucoepidermoid carcinomas (MECs), 27 adenoid cystic carcinomas (ACCs), and 13 tracheobronchial papillomas (TBPs) were collected retrospectively.

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Objective: Studies in estrogen deficiency states such as primary ovarian insufficiency and Turner syndrome suggest that estrogen status may be an important modulator of mood and emotions. In this study we compared depressive and anxiety symptoms between adolescent and young adult female oligo-amenorrheic athletes (AA) and eumenorrheic females (EM), and explored structural, and functional changes in related brain areas during reward processing, a behavioral construct that is altered in depression and anxiety.

Methods: We included (i) 24 AA participating in ≥4 hours/week of aerobic exercise or running ≥20 miles/week for ≥6 months in the preceding year, with lack of menstrual cycles for ≥3 months within at least 6 preceding months of oligo-amenorrhea, OR in premenarchal girls, absence of menses at >15 years), and (ii) 27 EM aged 14-25 years.

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Beyond natural biology: rewiring cellular networks to study innate immunity.

Curr Opin Immunol

August 2023

Division of Gastroenterology, Boston Children's Hospital and Harvard Medical School, 300 Longwood Avenue, Boston, MA 02115, USA. Electronic address:

Within immune cells, microbial and self-ligands trigger pattern recognition receptors (PRRs) to nucleate and activate the signaling organelles of the immune system. Much work in this area has derived from observational biology of natural innate immune signaling. More recently, synthetic biology approaches have been used to rewire and study innate immune networks.

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Fetal brain tissue annotation and segmentation challenge results.

Med Image Anal

August 2023

Center for MR Research, University Children's Hospital Zurich, University of Zurich, Zurich, Switzerland; Neuroscience Center Zurich, University of Zurich, Zurich, Switzerland; University Research Priority Project Adaptive Brain Circuits in Development and Learning (AdaBD), University of Zürich, Zurich, Switzerland.

Article Synopsis
  • In-utero fetal MRI is becoming a crucial method for diagnosing and analyzing the developing brain, but manually segmenting cerebral structures is slow and error-prone.
  • The Fetal Tissue Annotation (FeTA) Challenge was established in 2021 to promote the creation of automatic segmentation algorithms, utilizing a dataset with seven segmented fetal brain tissue types.
  • The challenge saw 20 international teams submit algorithms, primarily based on deep learning techniques like U-Nets, with one team's asymmetrical U-Net architecture significantly outperforming others, establishing a benchmark for future segmentation efforts.
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As the classification of kinase-driven spindle cell tumors continues to evolve, we describe the first series of pediatric mesenchymal tumors harboring FGFR1 gene fusions that share histologic overlap with infantile fibrosarcoma and "NTRK-rearranged" spindle cell neoplasms. Herein, we present three cases of FGFR1-rearranged pediatric mesenchymal tumors, including one case with FGFR1::PARD6B gene fusion and two cases with FGFR1::EBF2 gene fusion. The tumors involved infants ranging from 3 to 9 months in age with a male-to-female ratio of 2:1.

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Background/aims: To describe the patterns of pre-operative aberrant regeneration and motility outcomes reported in an international registry of patients with 3-nerve palsy treated with nasal transposition of the split lateral rectus muscle (NTSLR).

Methods: This cross-sectional study used data from an international, multicentre registry of patients with 3-nerve palsy treated with NTSLR. Patients with aberrant regeneration were identified, and patterns of innervation described.

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Background: Pediatric interventional oncology (PIO) is a growing field intended to provide additional or alternative treatment options for pediatric patients with benign or malignant tumors. Large series of patients treated uniformly and subjected to rigorous endpoints for efficacy are not available.

Methods: We designed a collaborative initiative to capture data from pediatric patients with benign and malignant tumors who underwent a therapeutic interventional radiology procedure.

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Gut Microbiome Composition Is Associated With Future Onset of Crohn's Disease in Healthy First-Degree Relatives.

Gastroenterology

September 2023

Division of Gastroenterology & Hepatology, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Zane Cohen Center for Digestive Diseases, Mount Sinai Hospital, Toronto, Ontario, Canada. Electronic address:

Background & Aims: The cause of Crohn's disease (CD) is unknown, but the current hypothesis is that microbial or environmental factors induce gut inflammation in genetically susceptible individuals, leading to chronic intestinal inflammation. Case-control studies of patients with CD have cataloged alterations in the gut microbiome composition; however, these studies fail to distinguish whether the altered gut microbiome composition is associated with initiation of CD or is the result of inflammation or drug treatment.

Methods: In this prospective cohort study, 3483 healthy first-degree relatives (FDRs) of patients with CD were recruited to identify the gut microbiome composition that precedes the onset of CD and to what extent this composition predicts the risk of developing CD.

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Dyskeratosis congenita (DC) is a rare multisystemic disorder associated with defective telomere maintenance. Frequent clinical manifestations of DC include reticular skin pigmentation, dystrophic nails, oral leukoplakia, and bone marrow failure. Hepatic disturbances are reported to occur in 7% of DC patients.

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Protocol for measuring transcytosis and recycling of IgG in intestinal epithelial Caco-2 cells and primary human intestinal organoids.

STAR Protoc

May 2023

Division of Gastroenterology, Boston Children's Hospital and Harvard Medical School, Boston, MA 02115, USA; Harvard Digestive Diseases Center, Harvard Medical School, Boston, MA 02115, USA. Electronic address:

Transcytosis is the primary mechanism by which macro-molecules transverse epithelial cell barriers. Here, we present an assay for measuring transcytosis and recycling of IgG in intestinal epithelial Caco-2 cells and primary human intestinal organoids. We describe steps for establishing human enteroids or Caco-2 cells and plating monolayers.

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MRI Features and Their Association With Outcomes in Children With Anti-NMDA Receptor Encephalitis.

Neurol Neuroimmunol Neuroinflamm

July 2023

From the Emory University SOM and Children's Healthcare of Atlanta (G.G., M. Morris); University of Virginia Health System (J.N.B.); University of California San Diego and Rady Children's Hospital San Diego (J.H.Y.); Boston Children's Hospital and Harvard Medical School (C.M.S., M.G.); University of Colorado SOM and Children's Hospital Colorado (R.K.); Seattle Children's/University of Washington (C.E.O.); Vanderbilt University Medical Center (N.V.); Children's Hospital Los Angeles and Keck School of Medicine (J.D.S.), University of Southern California; University of Texas at Austin and Dell Medical School (K.R.-L., M. Moodley, D.H.); New York University SOM (A.C., C.S.); Children's National Hospital and George Washington University Medical School (A.B.K., I.K., L.N.S.); Mount Sinai University and Bristol Myers Squibb (A.Y.).

Article Synopsis
  • The study investigates the relationship between MRI lesions and clinical outcomes in children with anti-NMDA receptor encephalitis (pNMDARE).
  • A total of 175 children were examined, and it was found that those with abnormal T2-hyperintense lesions, especially in the frontal and occipital lobes, had worse outcomes after one year.
  • Although the initial association between MRI features and poor outcomes weakened after certain adjustments, further analysis indicated that specific brain lesions could still serve as potential predictors for prognosis in future studies.
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Pathogenic variants in , a gene critical to the self-renewal and proliferation of hematopoietic stem cells, are known to cause a rare bone marrow failure syndrome associated with amegakaryocytic thrombocytopenia and bilateral radioulnar synostosis known as RUSAT2. However, the spectrum of disease seen with causal variants in is broad, ranging from mildly affected adults to fetal loss. We report two cases of infants born preterm who presented at birth with symptoms of bone marrow failure including severe anemia, hydrops, and petechial hemorrhages; radioulnar synostosis was not observed in either patient, and, unfortunately, neither infant survived.

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Alterations in the growth and maturation of chondrocytes can lead to variation in human height, including monogenic disorders of skeletal growth. We aimed to identify genes and pathways relevant to human growth by pairing human height genome-wide association studies (GWASs) with genome-wide knockout (KO) screens of growth-plate chondrocyte proliferation and maturation . We identified 145 genes that alter chondrocyte proliferation and maturation at early and/or late time points in culture, with 90% of genes validating in secondary screening.

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Editorial: Inborn errors of immunity and mucosal immunity.

Front Immunol

May 2023

Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition, School of Medicine, University of Colorado Anschutz Medical Campus, Children's Hospital Colorado, Aurora, CO, United States.

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The sudden infant death syndrome (SIDS), the leading cause of postneonatal infant mortality in the United States, is typically associated with a sleep period. Previously, we showed evidence of serotonergic abnormalities in the medulla (e.g.

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Tuberculosis (TB) remains one of the major public health threats worldwide, despite improved diagnostic and therapeutic methods. Tuberculosis is one of the main causes of infectious disease in the chest and is associated with substantial morbidity and mortality in paediatric populations, particularly in low- and middle-income countries. Due to the difficulty in obtaining microbiological confirmation of pulmonary TB in children, diagnosis often relies on a combination of clinical and radiological findings.

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A Comprehensive Multilevel Analysis of the Bucharest Early Intervention Project: Causal Effects on Recovery From Early Severe Deprivation.

Am J Psychiatry

August 2023

Department of Psychiatry and Behavioral Sciences, Tulane University School of Medicine, New Orleans (King, Zeanah, Humphreys); Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh (Guyon-Harris); Department of Human Development and Quantitative Methodology, University of Maryland, College Park (Valadez, Fox); Institute of Child Development, Bucharest, Romania (Radulescu); Boston Children's Hospital and Harvard Medical School, Boston (Nelson); Harvard Graduate School of Education, Cambridge, Mass. (Nelson); Department of Psychology and Human Development, Vanderbilt University, Nashville, Tenn. (Humphreys).

Objective: The Bucharest Early Intervention Project is the first randomized controlled trial of foster care as an alternative to institutional care. The authors synthesized data from nearly 20 years of assessments of the trial to determine the overall intervention effect size across time points and developmental domains. The goal was to quantify the overall effect of the foster care intervention on children's outcomes and examine sources of variation in this effect, including domain, age, and sex assigned at birth.

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We used a blue organic light-emitting diode (bOLED) to increase the paracrine factors secreted from human adipose-derived stem cells (hADSCs) for producing conditioned medium (CM). Our results showed that while the bOLED irradiation promotes a mild-dose reactive oxygen generation that enhances the angiogenic paracrine secretion of hADSCs, it does not induce phototoxicity. The bOLED enhances paracrine factors via a cell-signaling mechanism involving hypoxia-inducible factor 1 alpha.

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