Le SIDA au Ghana (serveur d'exploration)

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Tuberculosis (TB) and HIV infection are independently associated with elevated serum concentrations of tumour necrosis factor receptor type 1 and β2-microglobulin, respectively

Identifieur interne : 001172 ( Main/Exploration ); précédent : 001171; suivant : 001173

Tuberculosis (TB) and HIV infection are independently associated with elevated serum concentrations of tumour necrosis factor receptor type 1 and β2-microglobulin, respectively

Auteurs : S. D. Lawn [États-Unis] ; D. Rudolph [États-Unis] ; S. Wiktor [Côte d'Ivoire] ; D. Coulibaly [Côte d'Ivoire] ; A. Ackah [Côte d'Ivoire] ; R. B. Lal [États-Unis]

Source :

RBID : Pascal:00-0517421

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English descriptors

Abstract

The aim of this study was to identify immune markers that are independently associated with HIV infection or TB in vivo. Using commercially available assays, we measured concentrations of five immune markers in sera from 175 out-patients attending medical clinics in Cote D'lvoire and Ghana, West Africa. Patients were categorized into groups with TB only (TB HIV, n = 55), TB and HIV coinfection (TB+ HIV+, n = 50), HIV infection only (TB HIV+, n = 35), or neither infection (TB HIV, n = 35). TBHIV+ and TB HIV+ groups were matched for blood CD4+ lymphocyte count. Mean ± s.d. concentrations of β2-microglobulin were similarly increased in both the TB HIV+ (5.3 ± 2.1 μg/ml, P < 0.001) and the TB +HIV+ (5.0 ± 1.5 μg/ml, P < 0.0001) groups compared with the TB HIV group (2.2 ± 1.8 μg/ml), but were only slightly increased in the TB+HIV group (3.2 ± 1.8 μg/ml, P = 0.01), In contrast, mean serum concentrations of soluble tumour necrosis factor receptor type I (sTNF-RI) were similarly elevated in the TB HIV (1873 ± 799 pg/ml, P < 0.0001) and TB+HIV+ (1797 ± 571 pg/ml, P < 0.0001) groups compared with uninfected subjects (906 ± 613 pg/ml), but there was only a small increase in sTNF-RI in the TB HIV+ group (1231 ± 165 pg/ml, P = 0.03). Both TB and HIV infection were associated with substantial elevation of serum concentrations of soluble CD8, soluble CD54, and sTNF-R type II. Analysis of additional samples from groups of TB +HIV and TB + HIV + patients receiving anti-TB treatment showed significant and equal reductions in mean serum sTNF-RI concentrations, but no significant change in mean β2-microglobulin. Thus, serum β2-microglobulin and sTNF-RI serve as relatively independent markers of HIV infection and TB, respectively, in studies of co-infected persons.

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<term>AIDS</term>
<term>Adult</term>
<term>Antigens, CD (blood)</term>
<term>Antitubercular Agents (therapeutic use)</term>
<term>Biological marker</term>
<term>Biological receptor</term>
<term>Biomarkers</term>
<term>Cross-Sectional Studies</term>
<term>Female</term>
<term>HIV Infections (blood)</term>
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<term>Tuberculosis</term>
<term>Tuberculosis (blood)</term>
<term>Tuberculosis (drug therapy)</term>
<term>Tuberculosis (immunology)</term>
<term>Tumor necrosis factor</term>
<term>West Africa</term>
<term>beta 2-Microglobulin (blood)</term>
<term>β2-Microglobulin</term>
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<term>Adulte</term>
<term>Antigènes CD (sang)</term>
<term>Antituberculeux (usage thérapeutique)</term>
<term>Femelle</term>
<term>Humains</term>
<term>Infections à VIH (immunologie)</term>
<term>Infections à VIH (sang)</term>
<term>Marqueurs biologiques</term>
<term>Mâle</term>
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<term>Récepteurs aux facteurs de nécrose tumorale (sang)</term>
<term>Tuberculose (immunologie)</term>
<term>Tuberculose (sang)</term>
<term>Tuberculose (traitement médicamenteux)</term>
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<term>Études transversales</term>
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<term>Antigens, CD</term>
<term>Receptors, Tumor Necrosis Factor</term>
<term>beta 2-Microglobulin</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="therapeutic use" xml:lang="en">
<term>Antitubercular Agents</term>
</keywords>
<keywords scheme="MESH" qualifier="blood" xml:lang="en">
<term>HIV Infections</term>
<term>Tuberculosis</term>
</keywords>
<keywords scheme="MESH" qualifier="drug therapy" xml:lang="en">
<term>Tuberculosis</term>
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<term>Infections à VIH</term>
<term>Tuberculose</term>
</keywords>
<keywords scheme="MESH" qualifier="immunology" xml:lang="en">
<term>HIV Infections</term>
<term>Tuberculosis</term>
</keywords>
<keywords scheme="MESH" qualifier="sang" xml:lang="fr">
<term>Antigènes CD</term>
<term>Infections à VIH</term>
<term>Récepteurs aux facteurs de nécrose tumorale</term>
<term>Tuberculose</term>
<term>bêta-2-Microglobuline</term>
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<keywords scheme="MESH" qualifier="traitement médicamenteux" xml:lang="fr">
<term>Tuberculose</term>
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<keywords scheme="MESH" qualifier="usage thérapeutique" xml:lang="fr">
<term>Antituberculeux</term>
</keywords>
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<term>Adult</term>
<term>Biomarkers</term>
<term>Cross-Sectional Studies</term>
<term>Female</term>
<term>Humans</term>
<term>Male</term>
<term>Receptors, Tumor Necrosis Factor, Type I</term>
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<term>Marqueurs biologiques</term>
<term>Mâle</term>
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<term>Tuberculose</term>
<term>SIDA</term>
<term>Virus immunodéficience humaine</term>
<term>Marqueur biologique</term>
<term>Réponse immune</term>
<term>Facteur nécrose tumorale</term>
<term>Récepteur biologique</term>
<term>Microglobuline β2</term>
<term>Homme</term>
<term>Afrique Ouest</term>
<term>Études transversales</term>
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<front>
<div type="abstract" xml:lang="en">The aim of this study was to identify immune markers that are independently associated with HIV infection or TB in vivo. Using commercially available assays, we measured concentrations of five immune markers in sera from 175 out-patients attending medical clinics in Cote D'lvoire and Ghana, West Africa. Patients were categorized into groups with TB only (TB
<sup> </sup>
HIV, n = 55), TB and HIV coinfection (TB
<sup>+</sup>
HIV
<sup>+</sup>
, n = 50), HIV infection only (TB HIV
<sup>+</sup>
, n = 35), or neither infection (TB HIV, n = 35). TB
<sup>H</sup>
IV
<sup>+</sup>
and TB HIV
<sup>+</sup>
groups were matched for blood CD4
<sup>+</sup>
lymphocyte count. Mean ± s.d. concentrations of β
<sub>2</sub>
-microglobulin were similarly increased in both the TB HIV
<sup>+</sup>
(5.3 ± 2.1 μg/ml, P < 0.001) and the TB
<sup>+</sup>
HIV
<sup>+</sup>
(5.0 ± 1.5 μg/ml, P < 0.0001) groups compared with the TB HIV group (2.2 ± 1.8 μg/ml), but were only slightly increased in the TB
<sup>+</sup>
HIV group (3.2 ± 1.8 μg/ml, P = 0.01), In contrast, mean serum concentrations of soluble tumour necrosis factor receptor type I (sTNF-RI) were similarly elevated in the TB HIV (1873 ± 799 pg/ml, P < 0.0001) and TB
<sup>+</sup>
HIV
<sup>+</sup>
(1797 ± 571 pg/ml, P < 0.0001) groups compared with uninfected subjects (906 ± 613 pg/ml), but there was only a small increase in sTNF-RI in the TB HIV
<sup>+</sup>
group (1231 ± 165 pg/ml, P = 0.03). Both TB and HIV infection were associated with substantial elevation of serum concentrations of soluble CD8, soluble CD54, and sTNF-R type II. Analysis of additional samples from groups of TB
<sup>+</sup>
HIV and TB
<sup>+</sup>
HIV
<sup>+</sup>
patients receiving anti-TB treatment showed significant and equal reductions in mean serum sTNF-RI concentrations, but no significant change in mean β
<sub>2</sub>
-microglobulin. Thus, serum β
<sub>2</sub>
-microglobulin and sTNF-RI serve as relatively independent markers of HIV infection and TB, respectively, in studies of co-infected persons.</div>
</front>
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<li>Côte d'Ivoire</li>
<li>États-Unis</li>
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<li>Géorgie (États-Unis)</li>
</region>
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<region name="Géorgie (États-Unis)">
<name sortKey="Lawn, S D" sort="Lawn, S D" uniqKey="Lawn S" first="S. D." last="Lawn">S. D. Lawn</name>
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<name sortKey="Lal, R B" sort="Lal, R B" uniqKey="Lal R" first="R. B." last="Lal">R. B. Lal</name>
<name sortKey="Rudolph, D" sort="Rudolph, D" uniqKey="Rudolph D" first="D." last="Rudolph">D. Rudolph</name>
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<name sortKey="Wiktor, S" sort="Wiktor, S" uniqKey="Wiktor S" first="S." last="Wiktor">S. Wiktor</name>
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<name sortKey="Ackah, A" sort="Ackah, A" uniqKey="Ackah A" first="A." last="Ackah">A. Ackah</name>
<name sortKey="Coulibaly, D" sort="Coulibaly, D" uniqKey="Coulibaly D" first="D." last="Coulibaly">D. Coulibaly</name>
</country>
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