Juan Carlos Guzman

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The National Center for Education Statistics (NCES) is the primary federal entity for collecting, analyzing, and reporting data related to education in the United States and other nations. It fulfills a congressional mandate to collect, collate, analyze, and report full and complete statistics on the condition of education in the United States; conduct and(More)
Previous work from our laboratory demonstrated that isometric handgrip (IHG) training improved local, endothelium-dependent vasodilation in medicated hypertensives [McGowan CL (PhD Thesis), 2006; McGowan et al. Physiologist 47: 285, 2004]. We investigated whether changes in the capacity of smooth muscle to dilate (regardless of endothelial factors)(More)
BACKGROUND Glycaemic control deteriorates progressively over time in patients with type 2 diabetes. Options for treatment escalation remain controversial after failure of first-line treatment with metformin. We compared add-on exenatide with glimepiride for durability of glycaemic control in patients with type 2 diabetes inadequately controlled by metformin(More)
The dimorphic yeast Yarrowia lipolytica is used as a model to study fungal differentiation because it grows as yeast-like cells or forms hyphal cells in response to changes in environmental conditions. Here, we report the isolation and characterization of a gene, ZNC1, involved in the dimorphic transition in Y. lipolytica. The ZNC1 gene encodes a 782 amino(More)
BACKGROUND Cardiac autonomic dysfunction has been proposed as an important contributing factor to the increased cardiovascular risk observed in major depression (MDD). However, the evidence regarding alterations in heart rate variability (HRV) in otherwise healthy depressed subjects has been inconclusive. METHODS A case-control study in 50 treatment-naïve(More)
As the Indiana Legislature prepares to vote on SB 345/HB 1219, some urgent thought needs to be given as to whether this is a bill that—while making good politics—makes bad policy. If this law is successful in its stated aim of expelling undocumented immigrants from the state, preliminary calculations show that it will affect various aspects of the economy(More)
AIMS The Calgary Syncope Symptom Score (CSSS) has been validated as a simple point score of historical features with high sensitivity and specificity for the diagnosis of vasovagal syncope (VVS) in younger populations without evidence of structural heart disease. Our purpose was to evaluate the performance of the CSSS in an elderly population with suspected(More)