Publications by authors named "Brian Wheeler"

Article Synopsis
  • Estradiol is crucial for female sex development and fertility, with its levels notably high in postmenopausal women and breast cancer patients.
  • Researchers discovered a new protein called AIPB, which interacts with aromatase and is linked to decreased expression in tumorigenic breast tissues.
  • Manipulating AIPB levels affects estradiol synthesis, suggesting it plays a significant role in breast cancer development and could serve as a predictor for breast cancer risk.
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The Centers for Disease Control and Prevention (CDC) Global Rapid Response Team (GRRT) was launched in June 2015 to strengthen the capacity for international response and to provide an agency-wide roster of qualified surge-staff members who can deploy on short notice and for long durations. To assess GRRT performance and inform future needs for CDC and partners using rapid response teams, we analyzed trends and characteristics of GRRT responses and responders, for deployments of at least 1 day during October 1, 2018, through March 31, 2019. One hundred twenty deployments occurred during the study period, corresponding to 2645 person-days.

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: Heparin-induced thrombocytopenia (HIT) occurs in patients receiving heparin-containing products due to the formation of platelet-activating antibodies to heparin and platelet factor 4. Diagnosis includes utilization of a scoring system known as the 4-T score, and HIT laboratory assays. Recently, obesity was identified as a potential factor associated with the development of HIT.

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Atrial flutter (AF) is the second most common supraventricular tachyarrhythmia following atrial fibrillation. We present an interesting case of a diagnostic challenge manifested as an electrocardiogram (ECG) recording mimicking AF in a patient with Parkinson's disease (PD). A 72-year-old African-American female with history of PD presented to our Emergency Department with a one day history of chest pain.

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Background: Insecticide-treated bednets (ITNs) are effective in preventing malaria where vectors primarily bite indoors and late at night, but their effectiveness is uncertain where vectors bite outdoors and earlier in the evening. We studied the effectiveness of ITNs following a mass distribution in Haiti from May to September, 2012, where the Anopheles albimanus vector bites primarily outdoors and often when people are awake.

Methods: In this case-control study, we enrolled febrile patients presenting to outpatient departments at 17 health facilities throughout Haiti from Sept 4, 2012, to Feb 27, 2014, who were tested with malaria rapid diagnostic tests (RDTs), and administered questionnaires on ITN use and other risk factors.

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Quality Issue: Transfers from intensive care units to acute care units represent a complex care transition for hospitalized patients. Within our institution, variation in transfer practices resulted in unpredictable processes in which patient safety concerns were raised.

Initial Assessment: Key stakeholders were engaged across the institution.

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Background The development of angioedema is a rare yet serious clinical event that may develop due to an adverse drug reaction. Rapid recognition and treatment of this adverse reaction is critical for optimal patient outcomes; however, prevention of this occurrence is preferred. Case report A 59-year-old woman presented to the emergency department with lingual angioedema caused by the addition of everolimus to her medication regimen.

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Ceramides, which are membrane sphingolipids and key mediators of cell-stress responses, are generated by a family of (dihydro) ceramide synthases (Lass1-6/CerS1-6). Here, we report that brain development features significant increases in sphingomyelin, sphingosine, and most ceramide species. In contrast, C(16:0)-ceramide was gradually reduced and CerS6 was down-regulated in mitochondria, thereby implicating CerS6 as a primary ceramide synthase generating C(16:0)-ceramide.

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A virtual-reality simulator was developed for the training of Otolaryngology (Ear-Nose-Throat) surgical residents to perform myringotomy, a relatively common surgical procedure in which an incision is made in the eardrum mainly to treat middle-ear infections. The simulator presents the trainee with a three-dimensional (3D) virtual model of the ear that can be viewed through a mock surgical microscope consisting of a stereo visor mounted on a custom-designed stand. The trainee interacts with the virtual ear using a real myringotomy blade, the movements of which are tracked in real time using a stereo optical tracker.

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Integrins govern cellular adhesion and transmit signals leading to activation of intracellular signaling pathways aimed to prevent apoptosis. Herein we report that attachment of oligodendrocytes (OLs) to fibronectin via alpha(v)beta(3) integrin receptors rendered the cells more resistant to apoptosis than the cells attached to laminin via alpha(6)beta(1) integrins. Investigation of molecular mechanisms involved in alpha(v)beta(3) integrin-mediated cell survival revealed that ligation of the integrin with fibronectin results in higher expression of activated Lyn kinase.

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