Paucity of Pericytes in Germinal Matrix Vasculature of Premature Infants
نویسندگان
چکیده
منابع مشابه
Paucity of pericytes in germinal matrix vasculature of premature infants.
Germinal matrix (GM) is a richly vascularized collection of neuronal-glial precursor cells in the developing brain, which is selectively vulnerable to hemorrhage in premature infants. It has rapid angiogenesis associated with high levels of vascular endothelial growth factor (VEGF). Because pericytes provide structural stability to blood vessels, we asked whether pericytes were fewer in the GM ...
متن کاملRisk Factors of Germinal Matrix Intraventricular Hemorrhage in Premature Infants
OBJECTIVE To determine whether some clinical parameters can be used to predict the hemorrhage and whether the relationship between these clinical variables and the grades of hemorrhage is linear. METHODS A total of 230 premature infants, born at a gestational age less than 34 weeks were retrospectively reviewed. Germinal matrix-intraventricular hemorrhage (GM-IVH), the grade of the hemorrhage...
متن کاملSonography of ventricular size and germinal matrix hemorrhage in premature infants.
Using the anterior fontanelle as an acoustic window, high resolution gray scale sonography brain scans with mobile apparatus were obtained in 35 premature infants. The sonographic technique provided accurate assessment of ventricular size and detected the subependymal germinal matrix and intraventricular hemorrhages. Ventricular size measurements correlated closely with computed tomography (CT)...
متن کاملEffect of prenatal glucocorticoids on cerebral vasculature of the developing brain.
BACKGROUND AND PURPOSE Prenatal glucocorticoids prevent germinal matrix hemorrhage in premature infants. The underlying mechanism, however, is elusive. Germinal matrix is enriched with angiogenic vessels exhibiting paucity of pericytes and glial fibrillary acidic protein-positive astrocyte end feet. Therefore, we asked whether glucocorticoid treatment would suppress angiogenesis and enhance per...
متن کاملCerebral oxygenation in preterm infants with germinal matrix-intraventricular hemorrhages.
BACKGROUND AND PURPOSE Preterm infants are at risk of developing germinal matrix hemorrhages-intraventricular hemorrhages (GMH-IVH). Disturbances in cerebral perfusion are associated with GMH-IVH. Regional cerebral tissue oxygen saturation (r(c)SO₂), measured with near-infrared spectroscopy, and fractional tissue oxygen extraction (FTOE) were calculated to obtain an indication of cerebral perfu...
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ژورنال
عنوان ژورنال: Journal of Neuroscience
سال: 2007
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.3281-07.2007