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1996-03-09
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Document 0174
DOCN M9650174
TI IgA subclasses in HIV disease: dichotomy between raised levels in serum
and decreased secretion rates in saliva.
DT 9605
AU Sweet SP; Rahman D; Challacombe SJ; Department of Oral Medicine and
Pathology, UMDS Guy's Hospital,; London, UK.
SO Immunology. 1995 Dec;86(4):556-9. Unique Identifier : AIDSLINE
MED/96165032
AB This study sought to determine IgA, IgA1 and IgA2 concentrations and
secretion rates in unstimulated whole saliva and stimulated parotid
saliva and IgA, IgA1 and IgA2 concentrations in serum from asymptomatic
human immunodeficiency virus (HIV)-infected, acquired immune deficiency
syndrome (AIDS) and control subjects. In whole and parotid saliva the
mean IgA, IgA1 and IgA2 concentrations in the HIV and AIDS groups were
lower than the control group (P < 0.05). Unstimulated whole and
stimulated parotid saliva flow rates were lower in the HIV and AIDS
groups compared with the control group, and reached statistical
significance with respect to the mean parotid saliva flow rate in the
AIDS group (P < 0.05). Mean IgA, IgA1 and IgA2 secretion rates in both
the HIV and AIDS groups were significantly less than the controls (P <
0.05). In contrast, serum IgA, IgA1 and IgA2 concentrations were
markedly raised in the HIV and AIDS groups compared with the control
group (P < 0.001). There was no correlation between saliva and serum IgA
concentrations within individuals. This study suggests that, in spite of
the raised, polyclonally activated serum IgA concentrations associated
with HIV infection, salivary IgA concentrations and secretion rates are
reduced, emphasizing the dichotomy between systemic and secretory
immunity.
DE Acquired Immunodeficiency Syndrome/IMMUNOLOGY Adult Aged Case-Control
Studies Citrates/DIAGNOSTIC USE Human HIV Infections/*IMMUNOLOGY
IgA/*BLOOD IgA, Secretory/*METABOLISM Male Middle Age Parotid
Gland/IMMUNOLOGY Saliva/*IMMUNOLOGY Support, Non-U.S. Gov't JOURNAL
ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).