Effects of exogenous urotensin II on vascular remodelling after balloon injury.

1. Urotensin II (U-II) is a powerful vasoconstrictor peptide that stimulates cell proliferation. However, the systemic effects of U-II on cellular and extracellular matrix responses of vessel walls have not been investigated.

[Level of plasma lysophosphatidic acid in patients with cerebral ischemic attack, a preliminary study].

Objective: To study the level of plasma lysophosphatidic acid (LPA) in patients with TIA, cerebral thrombosis or possible ischemic attack.

Methods: Phospholipid was extracted from plasma of patients with TIA, cerebral thrombosis or possible ischemic attack by organic solvent. Lysophosphatidic acid was isolated further.