Publications by authors named "Michael Hemphill"

Introduction: Black emerging adults (18-28 years) have the highest risk of short sleep duration and obesity. This increased risk may be partly explained by greater stress levels, which may result from race-related stress (racial discrimination and heightened race-related vigilance) or living in more disadvantaged home and neighbourhood environments. Insufficient sleep may also impact obesity risk via several weight-related mechanisms including energy balance, appetite and food reward, cortisol profiles and hydration status.

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Neuromyelitis optica spectrum disorder (NMOSD) is a rare autoimmune disorder of the central nervous system characterized by recurrent, disabling attacks that affect the optic nerve, spinal cord, and brain/brainstem. While rituximab, targeting CD20-positive B-cells, is used as an off-label therapy for NMOSD, some patients continue to exhibit breakthrough attacks and/or adverse reactions. Inebilizumab, a humanized and glycoengineered monoclonal antibody targeting CD19-positive B-cells, has been FDA approved for the treatment of NMOSD in adult patients who are anti-aquaporin-4 (AQP4) antibody positive.

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Purpose: The purpose of this case report is to increase awareness of tigecycline-associated pancreatitis, specifically in patients who may be predisposed to develop pancreatitis.

Case Summary: A 22-year-old male with cystic fibrosis developed acute bronchitis, with sputum cultures significant for Mycobacterium chelonae. He was started on tigecycline on two separate occasions, in each case developing pancreatitis as evidenced by symptomatology, elevated pancreatic enzymes and, in one case, by CT imaging.

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Purpose: Voiding cystourethrogram is the gold standard for evaluating and diagnosing vesicoureteral reflux. Reflux detection can potentially be affected by many parameters during voiding cystourethrogram.

Materials And Methods: A 29-item survey was sent via e-mail through SurveyMonkey® to the chairperson of pediatric radiology at 65 national pediatric hospitals.

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A divided nevus of the penis is a rare embryological occurrence. The appearance of a congenital melanocytic nevus can be difficult to distinguish from penile melanosis. This article presents the successful excision and histopathologic evaluation of one such nevus.

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Objective: To assess the safety, tolerability, and efficacy of GW320659, a chemically novel inhibitor of norepinephrine and dopamine reuptake, in pediatric attention-deficit/hyperactivity disorder (ADHD).

Method: This was a multicenter, open-label, dose-titration study of seven daily dose levels of GW320659: 1.25, 2.

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