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dc.contributor.authorYeoh, H-L
dc.contributor.authorCheng, AC
dc.contributor.authorCherry, CL
dc.contributor.authorWeir, JM
dc.contributor.authorMeikle, PJ
dc.contributor.authorHoy, JF
dc.contributor.authorCrowe, SM
dc.contributor.authorPalmer, CS
dc.date.accessioned2020-12-21T01:23:52Z
dc.date.available2020-12-21T01:23:52Z
dc.date.issued2017-08-01
dc.identifierpii: S2352-3964(17)30288-8
dc.identifier.citationYeoh, H. -L., Cheng, A. C., Cherry, C. L., Weir, J. M., Meikle, P. J., Hoy, J. F., Crowe, S. M. & Palmer, C. S. (2017). Immunometabolic and Lipidomic Markers Associated With the Frailty Index and Quality of Life in Aging HIV+ Men on Antiretroviral Therapy. EBIOMEDICINE, 22, pp.112-121. https://doi.org/10.1016/j.ebiom.2017.07.015.
dc.identifier.issn2352-3964
dc.identifier.urihttp://hdl.handle.net/11343/256492
dc.description.abstractChronic immune activation persists despite antiretroviral therapy (ART) in HIV+ individuals and underpins an increased risk of age-related co-morbidities. We assessed the Frailty Index in older HIV+ Australian men on ART. Immunometabolic markers on monocytes and T cells were analyzed using flow cytometry, plasma innate immune activation markers by ELISA, and lipidomic profiling by mass spectrometry. The study population consisted of 80 HIV+ men with a median age of 59 (IQR, 56-65), and most had an undetectable viral load (92%). 24% were frail, and 76% were non-frail. Frailty was associated with elevated Glucose transporter-1 (Glut1) expression on the total monocytes (p=0.04), increased plasma levels of innate immune activation marker sCD163 (OR, 4.8; CI 1.4-15.9, p=0.01), phosphatidylethanolamine PE(36:3) (OR, 5.1; CI 1.7-15.5, p=0.004) and triacylglycerol TG(16:1_18:1_18:1) (OR, 3.4; CI 1.3-9.2, p=0.02), but decreased expression of GM3 ganglioside, GM3(d18:1/18:0) (OR, 0.1; CI 0.0-0.6, p=0.01) and monohexosylceramide HexCerd(d18:1/22:0) (OR, 0.1; CI 0.0-0.5, p=0.004). There is a strong inverse correlation between quality of life and the concentration of PE(36:3) (ρ=-0.33, p=0.004) and PE(36:4) (ρ=-0.37, p=0.001). These data suggest that frailty is associated with increased innate immune activation and abnormal lipidomic profile. These markers should be investigated in larger, longitudinal studies to determine their potential as biomarkers for frailty.
dc.languageEnglish
dc.publisherELSEVIER SCIENCE BV
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.titleImmunometabolic and Lipidomic Markers Associated With the Frailty Index and Quality of Life in Aging HIV+ Men on Antiretroviral Therapy
dc.typeJournal Article
dc.identifier.doi10.1016/j.ebiom.2017.07.015
melbourne.affiliation.departmentBio21
melbourne.affiliation.departmentMicrobiology and Immunology
melbourne.source.titleEBioMedicine
melbourne.source.volume22
melbourne.source.pages112-121
dc.rights.licenseCC BY
melbourne.elementsid1225163
melbourne.contributor.authorMeikle, Peter
melbourne.contributor.authorCheng, Allen
melbourne.contributor.authorPalmer, Clovis
dc.identifier.eissn2352-3964
melbourne.accessrightsOpen Access


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