Journal Article

Mitochondrial DNA Haplogroups and Highly Active Antiretroviral Therapy–Related Lipodystrophy

Milena Nasi, Giovanni Guaraldi, Gabriella Orlando, Caterina Durante, Marcello Pinti, Elisa Nemes, Giulia Nardini, Giuseppe Passarino, Marina Cocchi, Roberto Esposito, Cristina Mussini and Andrea Cossarizza

in Clinical Infectious Diseases

Published on behalf of Infectious Diseases Society of America

Volume 47, issue 7, pages 962-968
Published in print October 2008 | ISSN: 1058-4838
Published online October 2008 | e-ISSN: 1537-6591 | DOI:
Mitochondrial DNA Haplogroups and Highly Active Antiretroviral Therapy–Related Lipodystrophy

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Background. The combination of different point mutations in mitochondrial DNA (mtDNA), which are defined as haplogroups, may cause modification in organelle function and may be involved in several pathologies. We analyzed the distribution of mtDNA polymorphisms in human immunodeficiency virus (HIV)–infected patients with lipodystrophy, a relevant adverse event caused by highly active antiretroviral therapy, and their correlation with metabolic and viroimmunologic parameters.

Methods. The frequency of the 9 most common European haplogroups was investigated in 346 white, HIV-infected patients with lipodystrophy. Haplogroups were identified on the basis of classic methods. Statistical analysis was performed with use of 1-way analysis of variance, the Χ2 test, and principal-components analysis.

Results. The distribution of mtDNA haplogroups among patients with lipodystrophy was similar to that among the general European population. We found no differences between patients with different haplogroups with regard to viroimmunologic results (plasma HIV load, CD4+ T cell count, and nadir CD4+ T cell count), glucose data (glucose, insulin, C-peptide, and glycosylated hemoglobin concentrations and insulin resistance), lipid data (levels of triglycerides, total cholesterol, high- and low-density lipoproteins, and apolipoprotein A1 and B), acid-base balance parameters (lactate level and anion gap), or anthropometric measures (weight, body mass index, and waist-to-hip ratio). No differences were observed in trunk fat levels, leg-fat ratio (which was determined by dual-energy x-ray absorptiometry), or exposure to different drug classes. Principal-components analysis confirmed that the spatial distribution of patients belonging to a given haplogroup was not influenced by different clinical parameters.

Conclusions. Our study indicates that, in HIV-infected patients with lipodystrophy, mtDNA haplogroups are not related to major metabolic changes or to particular viroimmunologic features.

Journal Article.  3678 words.  Illustrated.

Subjects: Infectious Diseases ; Immunology ; Public Health and Epidemiology ; Microbiology

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