[Immunohistochemical detection of altered low density lipoprotein (ox-LDL) in the vessel walls of patients with giant cell arteritis]. / Immunhistochemischer Nachweis veränderter Low-density-Lipoproteine (ox-LDL) in der Gefässwand bei Patienten mit Arteriitis temporalis.
Ophthalmologe
; 100(11): 955-9, 2003 Nov.
Article
en De
| MEDLINE
| ID: mdl-14669031
ABSTRACT
BACKGROUND AND PURPOSE:
Recent data indicate that lipid peroxidation is implicated in the pathogenesis of giant cell arteritis with a close anatomic relationship between reactive oxygen species and oxidatively injured vascular tissue. PATIENTS ANDMETHODS:
Immunohistochemistry utilizing anti-ox-LDL was performed on paraffin sections of isolated temporal arteries obtained from patients (n=23) suspected of having temporal arteritis. Enrichment as well as staining intensity of ox-LDL in vascular tissue was analysed by digital image planimetry.RESULTS:
Temporal arteries with biopsy proven temporal arteritis (n=11) presented with significantly higher enrichment of ox-LDL in the intima (16.9+/-4.2% vs. 11.25+/-2.3%; p<0.01) and mean (9.6+/-2.4% vs. 6.75+/-1.8%; p<0.01) as compared to healthy controls. Comparable results for the staining intensity were found in the intimal (2.8+/-0.5 eU vs. 1.7+/-0.4 eU; p<0.01) and medial layer (1.55+/-0.5 eU vs. 1.04+/-0.6 eU; p<0.01) of diseased patients compared to controls.CONCLUSIONS:
Accumulation of ox-LDL in the intimal layer, especially at the intima-media-border, was closely related to disruption of the elastica interna and adjacent vascular tissue, presumably contributing to the underlying process of intimal hyperplasia through unimpeded migration of smooth muscle and accumulation inflammatory cells.
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Bases de datos:
MEDLINE
Asunto principal:
Arterias Temporales
/
Arteritis de Células Gigantes
/
Lipoproteínas LDL
Tipo de estudio:
Clinical_trials
/
Diagnostic_studies
Límite:
Female
/
Humans
/
Male
/
Middle aged
Idioma:
De
Revista:
Ophthalmologe
Asunto de la revista:
OFTALMOLOGIA
Año:
2003
Tipo del documento:
Article