Tiantian C. Lin

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Real-time wall shear stress is difficult to monitor precisely because it varies in space and time. Microelectromechanical systems sensor provides high spatial resolution to resolve variations in shear stress in a 3-D bifurcation model for small-scaled hemodynamics. At low Reynolds numbers from 1.34 to 6.7 skin friction coefficients (Cf) varied(More)
Vascular calcification is associated with atherosclerosis, but whether it mechanically affects plaque stability remains controversial. To assess the effect of mineralization on plaque vulnerability to mechanical shear stress, we applied fluid shear to cultures of calcifying vascular cells (CVC), a subpopulation of smooth muscle cells that spontaneously(More)
Within arterial bifurcations or branching points, oscillatory shear stress (OSS) induces oxidative stress mainly via the reduced nicotinamide adenine dinucleodtide phosphate (NADPH) oxidase system. It is unknown whether 17beta-estradiol (E(2)) can regulate OSS-mediated low-density lipoprotein (LDL) modifications. Bovine aortic endothelial cells were(More)
We demonstrate a microelectromechanical systems (MEMS) sensor that provides unprecedented spatial resolution to resolve circumferential variations in shear stress in a scaled-up model of a symmetric bifurcation. The Reynolds numbers for the bifurcation model, based upon the average flow velocity and the tube diameter upstream of the bifurcation, ranged from(More)
This study reports on the visualization of G(o) protein in the medulla oblongata and pons of Sprague-Dawley rats, using a commercially available selective polyclonal antiserum against a 39-kDa protein corresponding to the alpha subunit of G(o). Specific immunofluorescent-staining was widely distributed in neuropils and neuronal cell bodies but displayed(More)
Previous work from our laboratory suggested that locus coeruleus (LC) and the coerulospinal noradrenergic pathway are intimately related to the elicitation of muscular rigidity by fentanyl. The present study attempted to identify the subtype of guanine nucleotide-binding regulatory protein that may participate in this process, using Sprague-Dawley rats(More)
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