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Author: Katherine J Baxter (9)


Jan
2018

Long-term dysphagia occurs in up to 50% of repaired esophageal atresia and tracheoesophageal fistula (EA/TEF) patients. The underlying factors are unclear and may include stricture, esophageal dysmotility, or associated anomalies. Our purpose was to determine whether structural airway abnormalities (SAA) are associated with dysphagia in EA/TEF.

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Jan
2018

The pediatric perforated appendix rate is a quality metric measured by the Agency for Healthcare Research and Quality (AHRQ) that reflects access to care. The association of health care utilization prior to presentation with appendicitis is unknown.
To determine whether increased health care utilization prior to presentation with appendicitis is associated with lower perforated appendicitis rates in children.

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Jun
2017

Short bowel syndrome (SBS) in neonates is an uncommon but highly morbid condition. As SBS survival increases, physiologic complications become more apparent. Few reports in the literature elucidate outcomes for adults with a pediatric history of SBS.

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Sep
2017

Though uncommon in children, pediatric thyroid nodules carry a higher risk of malignancy than adult nodules. While fine-needle aspiration (FNA) has been well established as the initial diagnostic test in adults, it has been more slowly adopted in children. The purpose of this study was to examine the comparative cost of FNA versus initial diagnostic lobectomy (DL) in the pediatric patient with an ultrasound-confirmed thyroid nodule.

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Feb
2015

The treatment of patients with pure (<5% round cell component) myxoid liposarcomas (pMLS) has not been well characterized. We hypothesized that multimodality therapy (oncological resection with radiation therapy) may not be necessary for pMLS.
Patients who underwent resection of localized pMLS at three institutions from 2000 to 2010 were identified and treatment variables were analyzed.

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Nov
2013

Differentiating large lipomas from atypical lipomatous tumors (ALT) is challenging, and preoperative management guidelines are not well defined. The diagnostic ambiguity leads many surgeons to refer all patients with large lipomatous masses to an oncologic specialist, perhaps unnecessarily.
In this retrospective cohort study of patients with nonretroperitoneal lipomatous tumors, preoperative characteristics discernible without invasive diagnostic procedures were evaluated for diagnostic predictive value.

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Jul
2013

Hirschsprung's disease (HD), congenital absence of ganglion cells, is considered uncommon in preterm infants. The aim was to describe the frequency, presentation, and surgical outcomes of preterm infants with HD. A retrospective cohort study was conducted of all patients diagnosed with HD from 2002 to 2012 at a single children's hospital.

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Oct
2012

UV-B light initiates photomorphogenic responses in plants. Arabidopsis UV RESISTANCE LOCUS8 (UVR8) specifically mediates these responses by functioning as a UV-B photoreceptor. UV-B exposure converts UVR8 from a dimer to a monomer, stimulates the rapid accumulation of UVR8 in the nucleus, where it binds to chromatin, and induces interaction of UVR8 with CONSTITUTIVELY PHOTOMORPHOGENIC1 (COP1), which functions with UVR8 to control photomorphogenic UV-B responses.

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Mar
2012

The recently identified plant photoreceptor UVR8 (UV RESISTANCE LOCUS 8) triggers regulatory changes in gene expression in response to ultraviolet-B (UV-B) light through an unknown mechanism. Here, crystallographic and solution structures of the UVR8 homodimer, together with mutagenesis and far-UV circular dichroism spectroscopy, reveal its mechanisms for UV-B perception and signal transduction. β-propeller subunits form a remarkable, tryptophan-dominated, dimer interface stitched together by a complex salt-bridge network.

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