home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
The Arsenal Files 6
/
The Arsenal Files 6 (Arsenal Computer).ISO
/
health
/
med9605a.zip
/
M9650348.TXT
< prev
next >
Wrap
Text File
|
1996-03-09
|
3KB
|
43 lines
Document 0348
DOCN M9650348
TI Elevated plasma concentration of reduced homocysteine in patients with
human immunodeficiency virus infection.
DT 9605
AU Muller F; Svardal AM; Aukrust P; Berge RK; Ueland PM; Froland SS;
Medical Department A, University of Oslo, National Hospital,; Norway.
SO Am J Clin Nutr. 1996 Feb;63(2):242-8. Unique Identifier : AIDSLINE
MED/96148838
AB Oxidative stress has been suggested to be an important factor in the
immunopathogenesis of human immunodeficiency virus (HIV) infection.
Reduced plasma thiols may lead to production of reactive oxygen species,
thus contributing to the oxidative stress. We quantified the total,
reduced, and protein-bound forms of the thiols homocysteine, cysteine,
cysteinylglycine, and methionine in plasma from 21 HIV-infected patients
and 15 healthy control subjects and compared the results with clinical
and immunologic indexes. The HIV-infected patients had significantly
higher concentrations of reduced homocysteine in plasma compared with
control subjects. No significant differences in reduced homocysteine
concentrations were noted when asymptomatic and symptomatic HIV-infected
patients were compared, and we did not find any relation between reduced
homocysteine concentrations and other markers of immunodeficiency. The
HIV-infected patients had normal total homocysteine concentrations. The
reduced cysteinylglycine concentration tended to be elevated in the
patient group. No differences between HIV-infected patients and control
subjects were found for reduced or total cysteine. Compared with control
subjects, the HIV-infected patients had lower concentrations of
methionine in plasma, and a significant correlation was found between
low concentrations of methionine and low CD4+ lymphocyte counts in
blood. Elevated concentrations of reduced homocysteine could possibly
contribute to formation of reactive oxygen species, leading to
accelerated immunologic deterioration and increased HIV replication.
DE Adult Cysteine/BLOOD CD4 Lymphocyte Count Dipeptides/BLOOD Female
Folic Acid/BLOOD Homocysteine/*BLOOD Human HIV Antibodies/ANALYSIS
HIV Infections/*BLOOD/IMMUNOLOGY *HIV-1/IMMUNOLOGY
Interleukin-2/BIOSYNTHESIS Lymphocytes/IMMUNOLOGY Male
Methionine/BLOOD Middle Age Oxidation-Reduction Oxidative Stress
Support, Non-U.S. Gov't Vitamin B 12/BLOOD JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).