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1996-03-30
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Document 1104
DOCN M9651104
TI [Ocular microangiopathy syndrome in patients with AIDS is associated
with increased plasma levels of the vasoconstrictor endothelin-1]
DT 9505
AU Geier SA; Rolinski B; Sadri I; Kronawitter U; Bogner JR; Klauss V;
Goebel FD; Augenklinik im Universitatsklinikum Rudolf Virchow,
Alexander; von Humboldt Universitat Berlin.
SO Klin Monatsbl Augenheilkd. 1995 Dec;207(6):353-60. Unique Identifier :
AIDSLINE MED/96150945
AB OBJECTIVE: Ocular microangiopathic syndrome is the most frequent
ophthalmic finding in patients suffering from the acquired
immunodeficiency syndrome (AIDS). Ocular microvascular changes including
cotton-wool spots are closely associated with neuroretinal and cognitive
deficits in patients infected with the human immunodeficiency virus type
1 (HIV-1). Endothelin-1 is a recently identified cytokine with potent
vasoconstrictor activity which is associated with various diseases
involving vascular structures. METHODS: We studied 29 patients with AIDS
by indirect ophthalmoscopy and by slit lamp biomicroscopy, and
endothelin-1 immunoreactivity (IR) was measured in plasma by
radioimmunoassay. Cotton-wool spots were counted as indicator of retinal
microvasculopathy. Conjunctival bloodflow sludging in conjunctival
vessels was measured by a standardized rating scale as indicator of
conjunctival microvasculopathy. Parameters of immunosystemic damage were
determined as covariates. RESULTS: Endothelin-1 IR was closely
associated with the number of cotton-wool spots (Spearman r = 0.53, p <
0.01) and with the extent of conjunctival blood-flow sludging (r = 0.61,
p < 0.001). The level of significance became stronger applying analysis
of covariance with Endothelin-1 IR as dependent variable and number of
cotton-wool spots (p < 0.0001) or extent of conjunctival blood-flow
sludging (p < 0.0001) as independent variables. CONCLUSION: Our data are
consistent with the hypothesis that the vasoconstrictor endothelin-1 has
an important role in the pathogenesis of HIV-1-related ocular
microangiopathic syndrome. As HIV-1-related ocular microangiopathic
syndrome is associated with neuroretinal and cognitive deficits in
patients with HIV-1 disease the therapeutic use of endothelin
antagonists currently under investigation should be discussed.
DE Acquired Immunodeficiency Syndrome/BLOOD/*DIAGNOSIS Adult
Endothelins/*BLOOD English Abstract Human *HIV-1 Male
Microcirculation/PHYSIOLOGY Ophthalmoscopy Retinal
Diseases/BLOOD/*DIAGNOSIS Syndrome JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).