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Endoglin is a homodimeric membrane glycoprotein primarily expressed on endothelial cells. In association with transforming growth factor (TGF)-ss receptors I and II, it can bind TGF-beta1 and -beta3 and form a functional receptor complex. There is increasing evidence that endoglin can modulate the cellular response to TGF-beta, a factor implicated in… (More)
Although headache is the most common sequelae of head injury, the posttraumatic headache is associated frequently with dizziness, irritability, lack of concentration, and intolerance to alcohol ingestion as a part of a symptom complex known as the postconcussion syndrome. This article clarifies the definitions of acute traumatic headache, posttraumatic… (More)
BACKGROUND Recent experiences of survey researchers suggest that physicians are becoming less willing to complete surveys. OBJECTIVE To compare response rates to a mailed physician survey with a prepaid check incentive of $20 versus $50. RESEARCH DESIGN Randomized controlled trial. SUBJECTS Five hundred seventy-eight physicians caring for patients… (More)
BACKGROUND Gene therapy for the treatment of vascular disease is limited by a low transfection efficiency and/or undesired biological responses. OBJECTIVE To determine the transfection efficiency of delivering a liposome/DNA complex into balloon-injured rabbit arteries systematically or using a local delivery catheter. METHODS The cationic liposomes… (More)
The lipid composition of Bacillus megatherium was studied by extracting the lipids with chloroform-methanol (2:1) and purified by the Folch method. Lipids were fractionated by DEAE-cellulose column chromatography. Lipid classes we're determined by thin layer chromatography. Diglycerides, hydroxy-fatty acids and free fatty acids were qualitatively determined… (More)
Michael Wallerstein for comments and suggestions on that version of the paper, and apologize for the over 22 year gap in revisions. Nicholson and Ranganath contributed the empirical sections of this paper, and thank James Hamilton for helpful advice. The authors are listed alphabetically.