Michael T. Lu

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We examined interconnections between a portion of the prefrontal cortex and the premotor areas in the frontal lobe to provide insights into the routes by which the prefrontal cortex gains access to the primary motor cortex and the central control of movement. We placed multiple injections of one retrograde tracer in the arm area of the primary motor cortex(More)
An important step in the herpesvirus life cycle is the switch from latency to lytic reactivation. In order to study the life cycle of Kaposi's sarcoma-associated herpesvirus (KSHV), we developed a gene expression system in KSHV-infected primary effusion lymphoma cells. This system uses Flp-mediated efficient recombination and tetracycline-inducible(More)
PURPOSE To retrospectively determine if the interval increase of right ventricular-left ventricular (RV/LV) diameter ratio from negative prior to positive current computed tomographic (CT) examination findings for pulmonary embolism (PE) is more accurate for predicting 30-day mortality than positive CT ratio alone, by using patient 30-day mortality as(More)
In mammals, imprinted genes have parent-of-origin-specific patterns of DNA methylation that cause allele-specific expression. At Rasgrf1 (encoding RAS protein-specific guanine nucleotide-releasing factor 1), a repeated DNA element is needed to establish methylation and expression of the active paternal allele. At Igf2r (encoding insulin-like growth factor 2(More)
OBJECTIVE Repeat imaging at the transfer of care between institutions is a potential source of overutilization. The purpose of this study was to assess whether importing images obtained at one institution to the PACS at another institution reduces the number of repeat imaging examinations performed, sparing patients unnecessary cost and radiation. (More)
BACKGROUND There have been few case reports of patellar tendon rupture in patients with underlying systemic lupus erythematosus (SLE). OBJECTIVES We present a unique case to discuss the importance of recognizing patellar tendon rupture in the emergency department (ED). CASE REPORT An 18-year-old man with SLE presented to the ED with pain, swelling, and(More)
BACKGROUND HIV-infected patients have a high risk of myocardial infarction. We aimed to assess the ability of statin treatment to reduce arterial inflammation and achieve regression of coronary atherosclerosis in this population. METHODS In a randomised, double-blind, placebo-controlled trial, 40 HIV-infected participants with subclinical coronary(More)
The sphingosine-1-phosphate receptor modulator fingolimod (FTY720) is known to elicit a negative chronotropic effect at treatment initiation that attenuates over time with continued dosing. The authors determined the effect of combining a single dose of fingolimod with steady-state atenolol or diltiazem on heart rate and mean arterial pressure. In a(More)
Right ventricular (RV) dysfunction is an important marker to predict morbidity and mortality in patients with acute pulmonary embolism (PE) [1, 2]. Because it provides a cine assessment, echocardiography is the first-line method to evaluate RV dysfunction. However, since CT pulmonary angiography (CTPA) is the standard diagnostic modality for PE [3],(More)
Objective To prospectively compare cardiac ventricular measurements from non-gated CT and end-diastolic ECG-gated CT in patients with acute pulmonary embolism (PE). Materials and methods With institutional review board approval, 30 adult patients (16 female, mean age = 56 years, range = 26–77 years) underwent ECG-gated cardiac CT within 36 h of their CT(More)