Asymmetrical Arterial Diameters

Asymmetrical dimethylarginine in idiopathic pulmonary arterial hypertension.

OBJECTIVE We explored the potential role of the endogenous NO synthase inhibitor asymmetrical dimethylarginine (ADMA) in patients with idiopathic pulmonary arterial hypertension (IPAH). Method and Results- We correlated plasma ADMA levels and cardiovascular indices from right heart catheterization in 57 patients with IPAH. Predictors of survival in patients with IPAH were studied. Furthermore, ...

Relationship between bronchial and arterial diameters in normal human lungs.

In order to find an objective method for measuring narrowing of small airways, eight lungs from four people without lung disease were inflated and fixed at 25 cm of water pressure. Eight to nine blocks were taken at random from each of six parasaggital slices from each lung, sectioned, and stained. The size of the bronchioles (airways without cartilage) in relation to their accompanying arterie...

Brain Arterial Diameters as a Risk Factor for Vascular Events

BACKGROUND Arterial luminal diameters are routinely used to assess for vascular disease. Although small diameters are typically considered pathological, arterial dilatation has also been associated with disease. We hypothesize that extreme arterial diameters are biomarkers of the risk of vascular events. METHODS AND RESULTS Participants in the Northern Manhattan Study who had a time-of-flight...

Asymmetrical Interactions and Asymmetrical Constraints

The three approaches to too-many-solutions problems discussed in the previous chapter do not treat them as symptomatic of significant generalizations about input-output mappings rather than outputs. Because this systematic challenge to OT is not recognized, previous attacks on these problems, apart from de Lacy's general proposal, see them as an assortment of individual difficult cases and anal...

How asymmetrical before it's asymmetrical?