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M94A0163.TXT
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1994-10-01
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Document 0163
DOCN M94A0163
TI Impaired parathyroid hormone release in human immunodeficiency virus
infection.
DT 9412
AU Hellman P; Albert J; Gidlund M; Klareskog L; Rastad J; Akerstrom G;
Juhlin C; Department of Surgery, University Hospital, Uppsala, Sweden.
SO AIDS Res Hum Retroviruses. 1994 Apr;10(4):391-4. Unique Identifier :
AIDSLINE MED/94347463
AB Patients with human immunodeficiency virus type 1 (HIV-1) seropositivity
exhibited significantly lower intact serum parathyroid hormone (PTH)
values (mean, 13.6 ng/liter; n = 44) than healthy controls (mean, 38.1
ng/liter; p < 0.001; n = 50). The reduction was greater among patients
with no or mild immunodeficiency (> 400 x 10(6) CD4+ lymphocytes/ml
blood; n = 22) than in those with severe immunodeficiency (< 200 x 10(6)
CD4+ lymphocytes/ml blood; n 22; p = 0.03), although total serum calcium
was normal in all groups. Patients with severe immunodeficiency
demonstrated an inverse correlation between total serum calcium and
serum PTH (r2 = 0.367; p < 0.01), which was also present in healthy
controls (r2 = 0.482; p < 0.001), but not among the seropositive
patients with no or mild immunodeficiency (r2 = 0.017; p = 0.58).
Parathyroid cells express a protein recognized by antibodies directed
against CD4, the HIV-1 receptor. This implies that these cells may be
directly infected with HIV-1 and also interact with circulating
autoantibodies against CD4, thus resulting in impaired PTH release.
DE Antigens, CD4/IMMUNOLOGY Autoantibodies/BLOOD Calcium/BLOOD Female
Human HIV Infections/*BLOOD/IMMUNOLOGY *HIV-1 Leukocyte Count Male
Parathyroid Glands/IMMUNOLOGY Parathyroid
Hormones/BLOOD/*DEFICIENCY/SECRETION Support, Non-U.S. Gov't T4
Lymphocytes JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).