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Srinivasa S, Lu MT, Fitch KV, Hallett TR, O’Malley TK, Stone LA, Martin A, Coromilas AJ, Burdo TH, Triant VA, Lo J, Looby SE, Neilan TG, Zanni MV. Epicardial adipose tissue volume and cardiovascular risk indices among asymptomatic women with and without HIV. Antivir Ther 2018; 23:1-9. [PMID: 28930079 PMCID: PMC5776057 DOI: 10.3851/imp3193] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/14/2017] [Indexed: 12/27/2022]
Abstract
BACKGROUND Mechanisms underlying the heightened myocardial infarction risk among HIV-infected women (versus non-HIV-infected women) remain unclear. Our objectives were to assess epicardial adipose tissue (EAT) volume and its associations among asymptomatic women with and without HIV. METHODS A total of 55 HIV-infected and 27 non-HIV-infected women without known cardiovascular disease who underwent cardiac CT and metabolic/immune phenotyping were included. EAT volume derived from CT was compared among women with and without HIV, and within-group EAT associations were assessed. Next, immune and atherosclerotic plaque parameters were compared among groups stratified by HIV serostatus and high/low EAT (defined in reference to median EAT for each serostatus group). RESULTS Asymptomatic HIV-infected women and age-matched non-HIV-infected women with comparable mean body mass index (28 ±1 versus 29 ±1 kg/m2) had similar median (IQR) volumes of EAT (54 [41-79] versus 65 [41-78] cm3; P>0.05); however, different within-group associations were noted. Markers of monocyte activation/arterial inflammation differed by HIV serostatus/EAT volume subgroup (CXCL10 [P=0.02], sCD163 [P=0.004], sCD14 [P=0.03], Lp-PLA2 [P=0.04]; P for overall ANOVA) and were highest among HIV-infected women with excess EAT (versus HIV-infected women without excess EAT, non-HIV-infected women with excess EAT and non-HIV-infected women without excess EAT). The percentage of segments with non-calcified coronary plaque also differed by HIV serostatus/EAT volume subgroup and was highest among HIV-infected women with excess EAT. CONCLUSIONS Asymptomatic women with and without HIV have similar volumes of EAT, but drivers of EAT may differ between groups. HIV-infected women with excess EAT have highest-level immune activation and the highest percentage of non-calcified plaque. Future studies are needed to determine whether EAT contributes pathogenetically to HIV-associated cardiovascular disease in women.
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Affiliation(s)
- Suman Srinivasa
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Michael T Lu
- Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Kathleen V Fitch
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Travis R Hallett
- Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Boston University School of Medicine, Boston, MA, USA
| | - Timothy K O’Malley
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Lauren A Stone
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Amanda Martin
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- University of Texas at Houston, Houston, TX, USA
| | - Alexandra J Coromilas
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Tricia H Burdo
- Department of Neuroscience, Temple University School of Medicine, Philadelphia, PA, USA
| | - Virginia A Triant
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Division of Infectious Disease, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Janet Lo
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Sara E Looby
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Yvonne L Munn Center for Nursing Research, Massachusetts General Hospital, Boston, MA, USA
| | - Tomas G Neilan
- Cardiac MR PET CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Markella V Zanni
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
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Raghavan A, Rimmelin D, Fitch KV, Zanni MV. Sex Differences in Select Non-communicable HIV-Associated Comorbidities: Exploring the Role of Systemic Immune Activation/Inflammation. Curr HIV/AIDS Rep 2017; 14:220-228. [PMID: 29080122 PMCID: PMC6007989 DOI: 10.1007/s11904-017-0366-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
PURPOSE OF THE REVIEW The goals of this review are to (1) explore HIV-associated cardiovascular disease (CVD), neurocognitive impairment, and non-AIDS-defining cancers (NADC) as heterogeneous model disease states fuelled in part by systemic immune activation/inflammation; (2) consider sex differences in the epidemiology of these diseases in both high-resource and lower-resource settings; and (3) examine biological and environmental factors which may contribute to heightened systemic immune activation/inflammation specifically among women living with HIV (WLHIV). RECENT FINDINGS The observation that WLHIV have higher levels of systemic immune activation/inflammation than men living with HIV (MLHIV) may be relevant to sex differences in select non-communicable HIV-associated comorbidities. Heightened systemic immune activation among WLHIV may be influenced by sex-specific responses to the virus and to immunomodulatory agents, as well as by behavioral choices/comorbid conditions and perturbations in the hypothalamic-pituitary-gonadal axis. Additional research is needed to elucidate region-specific drivers of heightened systemic immune activation/inflammation among WLHIV and to determine whether WLHIV who present with one immune-mediated HIV-associated comorbidity (e.g., cognitive impairment) may be at increased risk for another (e.g., CVD, NADC). This kind of research would facilitate improved risk prediction for non-communicable HIV-associated comorbidities among WLHIV and the development of targeted immunomodulatory prevention strategies.
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Affiliation(s)
- Avanthi Raghavan
- Massachusetts General Hospital, Program in Nutritional Metabolism, Harvard Medical School
| | - Dodie Rimmelin
- Massachusetts General Hospital, Program in Nutritional Metabolism, Harvard Medical School
| | - Kathleen V. Fitch
- Massachusetts General Hospital, Program in Nutritional Metabolism, Harvard Medical School
| | - Markella V. Zanni
- Massachusetts General Hospital, Program in Nutritional Metabolism, Harvard Medical School
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103
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Toribio M, Park MH, Zanni MV, Robbins GK, Burdo TH, Williams KC, Feldpausch MN, Stone L, Melbourne K, Grinspoon SK, Fitzgerald ML. HDL Cholesterol Efflux Capacity in Newly Diagnosed HIV and Effects of Antiretroviral Therapy. J Clin Endocrinol Metab 2017; 102:4250-4259. [PMID: 28945911 PMCID: PMC5673269 DOI: 10.1210/jc.2017-01334] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Accepted: 09/07/2017] [Indexed: 02/02/2023]
Abstract
CONTEXT In the general population, high-density lipoprotein (HDL) cholesterol efflux capacity (HCEC) relates inversely to incident cardiovascular events. Previous studies have suggested that HCEC is decreased in HIV and that antiretroviral therapy (ART) initiation might improve HCEC. OBJECTIVE To evaluate HCEC in the context of ART initiation and immune activation in HIV. DESIGN AND OUTCOME MEASURES Baseline HCEC from 10 ART-naive HIV-infected males and 12 prospectively matched non-HIV-infected males were analyzed. In the HIV cohort, HCEC 6 months after elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate (E/C/F/TDF) therapy was evaluated. HCEC served as the primary outcome and was measured by the ability of J774 mouse macrophages to efflux cholesterol. Our ex vivo assay used two cholesterol acceptors [apolipoprotein B (apoB)-depleted sera or purified HDL] and modulation of cellular efflux pathways using a liver X receptor (LXR) agonist. RESULTS The median age was 34 years [interquartile range (IQR), 27 to 51], and baseline HDL was 46 mg/dL (IQR, 38 to 61). HCEC was significantly greater in the non-HIV-infected subjects than in the HIV-infected subjects at baseline. HCEC, assessed using apoB-depleted sera, significantly increased after ART (no LXR agonist, baseline: median, 8.1%; IQR, 7.0% to 11.9%; after ART: median, 12.9%; IQR, 10.4% to 21.1%; P = 0.006; LXR agonist, baseline, 1.3% ± 1.3%; after ART, 2.5% ± 1.0%; P = 0.02), although not to the levels in the non-HIV-infected subjects (no LXR agonist: median, 14.9%; IQR, 11.5% to 19.1%; LXR agonist: 5.8% ± 1.3%). HCEC, assessed using purified HDL, did not significantly increase after ART. The change in HCEC with ART related inversely to the change in the percentage of CD14-CD16+ (nonclassical) monocytes (ρ = -0.74, P = 0.04) and directly to the change in the percentage of CD14+CD16- (classical) monocytes (ρ = 0.72, P = 0.045). CONCLUSIONS Our data suggest improvement of HCEC with E/C/F/TDF and a relationship between the ART-induced decrease in immune activation and ART-induced improvement in HCEC.
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Affiliation(s)
- Mabel Toribio
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114
| | - Min Hi Park
- Lipid Metabolism Unit/Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114
| | - Markella V Zanni
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114
| | - Gregory K Robbins
- Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114
| | - Tricia H Burdo
- Department of Biology, Boston College, Chestnut Hill, Massachusetts 02467
| | - Kenneth C Williams
- Department of Biology, Boston College, Chestnut Hill, Massachusetts 02467
| | - Meghan N Feldpausch
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114
| | - Lauren Stone
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114
| | | | - Steven K Grinspoon
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114
| | - Michael L Fitzgerald
- Lipid Metabolism Unit/Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114
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Liang H, Xie Z, Shen T. Monocyte activation and cardiovascular disease in HIV infection. Cell Mol Immunol 2017; 14:960-962. [PMID: 29082920 DOI: 10.1038/cmi.2017.109] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 09/18/2017] [Indexed: 12/25/2022] Open
Affiliation(s)
- Hua Liang
- State Key Laboratory of Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, China CDC, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Beijing, China
| | - Zhe Xie
- Department of Microbiology and Center of Infectious Diseases, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Tao Shen
- Department of Microbiology and Center of Infectious Diseases, School of Basic Medical Sciences, Peking University, Beijing, China
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Fourman LT, Lu MT, Lee H, Fitch KV, Hallett TR, Park J, Czerwonka N, Weiss J, Stanley TL, Lo J, Grinspoon SK. Differential relationships of hepatic and epicardial fat to body composition in HIV. Physiol Rep 2017; 5:5/19/e13386. [PMID: 29038352 PMCID: PMC5641927 DOI: 10.14814/phy2.13386] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 07/22/2017] [Indexed: 12/15/2022] Open
Abstract
HIV-infected patients commonly experience changes in central and peripheral fat content as well as ectopic fat accumulation. However, whether hepatic and epicardial fat stores relate differentially to body composition or how these associations are modified by HIV status has not been well explored. A previously recruited sample of 124 HIV-infected patients and 58 healthy controls had undergone dual energy X-ray absorptiometry (DEXA) and computed tomography (CT) from which body composition measures, liver-spleen ratio, and epicardial fat volume were obtained. Unique to the HIV-infected group, there was a parabolic association between abdominal subcutaneous adipose tissue (SAT) area and liver-spleen ratio (P = 0.03, inflection point 324 cm2) such that hepatic fat content was greatest at the extremes of low and high SAT A quadratic model also closely described the relationship between mean leg fat and liver-spleen ratio among patients with HIV (P = 0.02, inflection point 4.7 kg), again suggesting greater liver fat content with both low and high leg fat. Notably, an analogous relationship of epicardial fat with SAT was not evident among HIV-infected individuals or healthy controls. In contrast, visceral adipose tissue (VAT) linearly related to both liver-spleen ratio in HIV and epicardial fat volume irrespective of HIV status in multivariable models. In conclusion, our analyses implicate both low and high SAT as risk factors for hepatic fat accumulation in HIV These findings add to growing evidence of SAT dysfunction in the setting of HIV infection, and highlight key physiologic differences between hepatic and epicardial fat depots.
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Affiliation(s)
- Lindsay T Fourman
- Department of Medicine, Endocrine Division, Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Michael T Lu
- Department of Radiology, Cardiac PET MR CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Hang Lee
- MGH Biostatistics Center, Massachusetts General Hospital, Boston, Massachusetts
| | - Kathleen V Fitch
- Department of Medicine, Endocrine Division, Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Travis R Hallett
- Department of Radiology, Cardiac PET MR CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Jakob Park
- Department of Radiology, Cardiac PET MR CT Program, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Natalia Czerwonka
- Department of Medicine, Endocrine Division, Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Julian Weiss
- Department of Medicine, Endocrine Division, Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Takara L Stanley
- Department of Medicine, Endocrine Division, Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Janet Lo
- Department of Medicine, Endocrine Division, Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Steven K Grinspoon
- Department of Medicine, Endocrine Division, Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
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Zanni MV, Stone LA, Toribio M, Rimmelin DE, Robinson J, Burdo TH, Williams K, Fitch KV, Lo J, Grinspoon SK. Proprotein Convertase Subtilisin/Kexin 9 Levels in Relation to Systemic Immune Activation and Subclinical Coronary Plaque in HIV. Open Forum Infect Dis 2017; 4:ofx227. [PMID: 29226174 PMCID: PMC5714125 DOI: 10.1093/ofid/ofx227] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 10/13/2017] [Indexed: 11/14/2022] Open
Abstract
Background Proprotein convertase subtilisin/kexin 9 (PCSK9) is known to mediate homeostasis of low-density lipoprotein cholesterol (LDL-c), but it may also participate in immune reactivity and atherogenesis. Methods We compared circulating PCSK9 levels among asymptomatic individuals with and without HIV. Further, within each group, we assessed the relationship between PCSK9 levels, traditional cardiovascular disease risk factors, immune activation, and subclinical coronary atherosclerotic plaque. Results PCSK9 levels were higher among HIV-infected (n = 149) vs matched non-HIV-infected subjects (n = 69; 332 [272, 412] ng/mL vs 304 [257, 375] ng/mL; P = .047). Among HIV-infected subjects, significant albeit modest positive associations were noted between PCSK9 levels and markers of systemic monocyte activation including sCD14 (rho = 0.22; P = .009) and sCD163 (rho = 0.23; P = .006). In this group, PCSK9 levels related weakly to LDL-c (rho = 0.16; P = .05) and also to Framingham Point Score but did not relate to subclinical coronary atherosclerotic plaque parameters. Conclusions Among HIV-infected individuals, circulating PCSK9 levels are elevated and related to systemic markers of monocyte activation but not to coronary plaque parameters. Additional studies are needed to determine the effects of PCSK9 on immune activation and atherogenesis in HIV and to assess whether PCSK9 inhibition reduces immune activation and coronary atherosclerotic plaque burden. Clinical Trial Registration NCT00455793.
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Affiliation(s)
- Markella V Zanni
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Lauren A Stone
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Mabel Toribio
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Dodie E Rimmelin
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Jake Robinson
- Department of Neuroscience, Temple University School of Medicine, Philadelphia, Pennsylvania
| | - Tricia H Burdo
- Department of Neuroscience, Temple University School of Medicine, Philadelphia, Pennsylvania
| | | | - Kathleen V Fitch
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Janet Lo
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Steven K Grinspoon
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Correspondence: S. K. Grinspoon, MD, Program in Nutritional Metabolism, Massachusetts General Hospital, 55 Fruit Street, LON207, Boston, MA 02114 ()
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Dirajlal-Fargo S, Sattar A, Kulkarni M, Funderburg N, McComsey GA. Soluble TWEAK may predict carotid atherosclerosis in treated HIV infection. HIV CLINICAL TRIALS 2017; 18:156-163. [PMID: 28828963 DOI: 10.1080/15284336.2017.1366001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Soluble Tumor Necrosis Factor Weak Inducer of Apoptosis (sTWEAK) has been proposed as a novel biomarker of cardiovascular disease risk. This study compares levels of sTWEAK, sCD163 and the sCD163/sTWEAK ratio in HIV-infected and uninfected patients and their associations with cardiovascular and inflammatory factors. METHODS The data for our analysis come from 274 HIV-infected adults and 59 controls. HIV participants were on stable antiretroviral therapy (ART). Wilcoxon-Mann-Whitney tests were used for comparing markers between HIV-infected participants with HIV viral load <50 copies/mL (aviremic group), HIV-infected participants with detectable viremia (HIV-1 RNA ≥50 copies/mL; viremic group) and HIV negative participants. Multivariable quantile regression analyses were used to assess associations of sTWEAK and sCD163 with other markers of inflammation and carotid intima-media thickness (cIMT). RESULTS Overall, 74% of participants were male; 59% were African-Americans; median age was 40 years and CD4 595 cells/mm3. Overall, HIV-infected participants had reduced sTWEAK and increased sCD163 levels compared to HIV-uninfected participants (p = 0.0001 for both markers). In addition, these biomarkers were significantly different between HIV-infected viremic and aviremic patients (p ≤ 0.01 for both markers). In multivariable models, sTWEAK and sCD163 in aviremic patients were significantly correlated with common carotid artery IMT (p ≤ 0.05). In HIV-infected aviremic participants, sTWEAK and sCD163 were both associated with IL-6, CD14 + CD16 + monocytes (p ≤ 0.02); additionally, sCD163 was associated with D-dimer- (β = -69.5, 0.05), VCAM (β = 72.4, p = 0.05), TNF RI (β = 91.1, p < 0.01), and TNF RII (β = 87.8, p < 0.01). CONCLUSIONS HIV-infected participants showed increased systemic inflammatory and monocyte activation markers. Soluble CD163 and sTWEAK levels were associated with carotid intima-media thickness.
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Affiliation(s)
- Sahera Dirajlal-Fargo
- a Department of Pediatrics , Case Western Reserve University , Cleveland , OH , USA.,b Rainbow Babies and Children's Hospital , Cleveland , OH , USA
| | - Abdus Sattar
- a Department of Pediatrics , Case Western Reserve University , Cleveland , OH , USA
| | - Manjusha Kulkarni
- c Division of Medical Laboratory Science, School of Health and Rehabilitation Sciences , Ohio State University , Columbus , OH , USA
| | - Nicholas Funderburg
- c Division of Medical Laboratory Science, School of Health and Rehabilitation Sciences , Ohio State University , Columbus , OH , USA
| | - Grace A McComsey
- a Department of Pediatrics , Case Western Reserve University , Cleveland , OH , USA.,b Rainbow Babies and Children's Hospital , Cleveland , OH , USA
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108
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Abstract
Cardiovascular disease, including atherosclerosis and atherosclerosis-associated complications, is an increasing cause of morbidity and mortality in human immunodeficiency virus (HIV) patients in the post-antiretroviral therapy era. HIV alone accelerates atherosclerosis. Antiretroviral therapy; HIV-associated comorbidities, such as dyslipidemia, drug abuse, and opportunistic infections; and lifestyle are risk factors for HIV-associated atherosclerosis. However, our current understanding of HIV-associated atherogenesis is very limited and has largely been obtained from clinical observation. There is a pressing need to experimentally unravel the missing link between HIV and atherosclerosis. Understanding these mechanisms will help to better develop and design novel therapeutic interventions for the treatment of HIV-associated cardiovascular disease. HIV mainly infects T cells and macrophages resulting in the induction of oxidative and endoplasmic reticulum stress, the formation of the inflammasome, and the dysregulation of autophagy. These mechanisms may contribute to HIV-associated atherogenesis. In this review, we will summarize our current understanding and propose potential mechanisms of HIV-associated atherosclerosis.
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Affiliation(s)
- Alison Kearns
- Department of Neuroscience, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
| | - Jennifer Gordon
- Department of Neuroscience, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania
| | - Tricia H Burdo
- Department of Neuroscience, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania.
| | - Xuebin Qin
- Department of Neuroscience, Lewis Katz School of Medicine, Temple University, Philadelphia, Pennsylvania.
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Abstract
Effective combination antiretroviral therapy has transformed HIV infection into a chronic disease, with HIV-infected individuals living longer and reaching older age. Neurological disease remains common in treated HIV, however, due in part to ongoing inflammation and immune activation that persist in chronic infection. In this review, we highlight recent developments in our understanding of several clinically relevant neurologic complications that can occur in HIV infection despite treatment, including HIV-associated neurocognitive disorders, symptomatic CSF escape, cerebrovascular disease, and peripheral neuropathy.
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Affiliation(s)
- Nisha S Bhatia
- Department of Neurology, University of California, San Francisco, CA, USA.
| | - Felicia C Chow
- Departments of Neurology and Medicine (Infectious Diseases), University of California, San Francisco, CA, USA
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110
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Abstract
: The well treated HIV population remains at risk for insulin resistance and chronic immune activation. We tested the effects of acute hyperinsulinemia on inflammation in HIV. Twenty HIV-infected and 10 non-HIV-infected individuals well matched for BMI underwent oral glucose tolerance testing to stimulate insulin secretion and assess for changes in circulating soluble CD163, soluble CD14, and monocyte chemoattract protein 1. Soluble CD14 decreased significantly after stimulation of hyperinsulinemia and no significant changes in soluble CD163 or monocyte chemoattract protein 1 were demonstrated in HIV-infected and non-HIV-infected groups.
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111
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Mosepele M, Hemphill LC, Moloi W, Moyo S, Nkele I, Makhema J, Bennett K, Triant VA, Lockman S. Pre-clinical carotid atherosclerosis and sCD163 among virally suppressed HIV patients in Botswana compared with uninfected controls. PLoS One 2017; 12:e0179994. [PMID: 28662159 PMCID: PMC5491105 DOI: 10.1371/journal.pone.0179994] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 06/07/2017] [Indexed: 12/18/2022] Open
Abstract
Objectives Human immune deficiency virus (HIV) is associated with increased cardiovascular disease (CVD) risk, yet the relationship between HIV and carotid atherosclerosis / monocyte activation among virally suppressed HIV-infected patients in sub-Saharan Africa is not well understood. Methods We measured traditional CVD risk factors, bilateral distal common carotid intima media thickness (cIMT), presence of carotid plaque and plasma sCD163 levels among virally suppressed HIV-infected adults and HIV-uninfected controls, in a cross-sectional study in Gaborone, Botswana. The associations between HIV status, traditional CVD risk factors, sCD163 and outcome of cIMT were assessed in univariate and multivariate linear regression models. Results We enrolled 208 HIV-infected adults (55% Female, mean age 39 years) who had undetectable HIV-1 RNA on antiretroviral therapy and 224 HIV-uninfected controls (47% Female, mean age 37 years). There was no difference in cIMT between study groups, with mean cIMT 0.607mm and 0.599mm in HIV-infected and HIV-uninfected, respectively (p = 0.37). Plasma sCD163 was significantly higher in HIV-infected versus HIV-uninfected persons (1917ng/ml vs 1593ng/ml, p = 0.003), but was not associated with cIMT (p = 0.43 among all, p = 0.72 for HIV-infected only). In the final multivariate model, increased cIMT was associated with older age, being treated for hypertension, and higher non-HDL cholesterol among all (p<0.001, p = 0.03, p<0.001 respectively), and with older age and waist-hip ratio in HIV-infected participants (p = 0.02 & p = 0.02 respectively). Carotid plaque was present in a significantly higher proportion of HIV-infected adults (RR 2.15, 95% CI 1.22, 3.81). Conclusions HIV-infected participants aged 30–50 years who have achieved viral suppression did not have increased cIMT when compared to HIV-uninfected controls in Botswana. However, well-controlled HIV was associated with excess monocyte activation. Future work should explore the impact of subclinical atherosclerosis on CVD events among HIV-infected and -uninfected adults in Botswana.
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Affiliation(s)
- Mosepele Mosepele
- Department of Medicine, Faculty of Medicine, University of Botswana, Gaborone, Botswana
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
- * E-mail: ,
| | - Linda C. Hemphill
- Harvard Medical School & Massachusetts General Hospital (Division of Cardiology-LCH and Divisions of Infectious Diseases and General Internal Medicine-VAT), Boston, Massachusetts, United States of America
| | - Walter Moloi
- Department of Medicine, Faculty of Medicine, University of Botswana, Gaborone, Botswana
| | - Sikhulile Moyo
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Isaac Nkele
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Joseph Makhema
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
| | - Kara Bennett
- Bennett Statistical Consulting Inc, Ballston Lake, New York, United States of America
| | - Virginia A. Triant
- Harvard Medical School & Massachusetts General Hospital (Division of Cardiology-LCH and Divisions of Infectious Diseases and General Internal Medicine-VAT), Boston, Massachusetts, United States of America
| | - Shahin Lockman
- Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana
- Department of Immunology & Infectious Diseases Harvard T.H. Chan School of Public Health, Boston, Massachusetts, United States of America
- Division of Infectious Diseases, Brigham & Women`s Hospital, Boston, Massachusetts, United States of America
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Difference in Aortic Stiffness Between Treated Middle-Aged HIV Type 1-Infected and Uninfected Individuals Largely Explained by Traditional Cardiovascular Risk Factors, With an Additional Contribution of Prior Advanced Immunodeficiency. J Acquir Immune Defic Syndr 2017; 73:55-62. [PMID: 27513572 DOI: 10.1097/qai.0000000000001024] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Patients with HIV, even with suppressed viremia on combination antiretroviral therapy, are at increased risk for cardiovascular disease. The underlying pathophysiology remains to be clarified. Aortic stiffness, known to be associated with cardiovascular disease in the general population, was investigated in a cohort of HIV type 1 (HIV 1)-infected and similar but uninfected individuals. METHODS Aortic stiffness was assessed by measuring pulse wave velocity (PWV) with an Arteriograph. Five hundred seven HIV-uninfected and 566 HIV 1-infected individuals, predominantly with suppressed viremia on combination antiretroviral therapy, aged ≥45 years, participating in the ongoing AGEhIV Cohort Study were included in the analysis. Multivariable linear regression was used to investigate whether HIV was independently associated with aortic stiffness, adjusting for traditional cardiovascular risk factors. RESULTS Study groups were comparable in demographics; smoking and hypertension were more prevalent in HIV-infected participants. PWV was higher in the HIV-infected group (7.9 vs. 7.7 m/s, P = 0.004). After adjustment for mean arterial pressure, age, gender, and smoking, HIV status was not significantly associated with aortic stiffness. In HIV-infected participants, having a nadir CD4 T-cell count ≤100 cells per cubic millimeter was independently associated with a higher PWV. CONCLUSIONS The increased aortic stiffness in HIV-infected participants was largely explained by a higher prevalence of traditional cardiovascular risk factors, particularly smoking. Although HIV itself was not independently associated with higher aortic stiffness, a prior greater degree of immunodeficiency was. This suggests a detrimental effect of immunodeficiency on the aortic wall, possibly mediated by inflammation.
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Lerman JB, Joshi AA, Chaturvedi A, Aberra TM, Dey AK, Rodante JA, Salahuddin T, Chung JH, Rana A, Teague HL, Wu JJ, Playford MP, Lockshin BA, Chen MY, Sandfort V, Bluemke DA, Mehta NN. Coronary Plaque Characterization in Psoriasis Reveals High-Risk Features That Improve After Treatment in a Prospective Observational Study. Circulation 2017; 136:263-276. [PMID: 28483812 DOI: 10.1161/circulationaha.116.026859] [Citation(s) in RCA: 111] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Accepted: 04/27/2017] [Indexed: 11/16/2022]
Abstract
BACKGROUND Psoriasis, a chronic inflammatory disease associated with an accelerated risk of myocardial infarction, provides an ideal human model to study inflammatory atherogenesis in vivo. We hypothesized that the increased cardiovascular risk observed in psoriasis would be partially attributable to an elevated subclinical coronary artery disease burden composed of noncalcified plaques with high-risk features. However, inadequate efforts have been made to directly measure coronary artery disease in this vulnerable population. As such, we sought to compare total coronary plaque burden and noncalcified coronary plaque burden (NCB) and high-risk plaque (HRP) prevalence between patients with psoriasis (n=105), patients with hyperlipidemia eligible for statin therapy under National Cholesterol Education Program-Adult Treatment Panel III guidelines (n=100) who were ≈10 years older, and healthy volunteers without psoriasis (n=25). METHODS Patients underwent coronary computed-tomography angiography for total coronary plaque burden and NCB quantification and HRP identification, defined as low attenuation (<30 hounsfield units), positive remodeling (>1.10), and spotty calcification. A consecutive sample of the first 50 patients with psoriasis was scanned again 1 year after therapy. RESULTS Despite being younger and at lower traditional risk than patients with hyperlipidemia, patients with psoriasis had increased NCB (mean±SD: 1.18±0.33 versus 1.11±0.32, P=0.02) and similar HRP prevalence (P=0.58). Furthermore, compared to healthy volunteers, patients with psoriasis had increased total coronary plaque burden (1.22±0.31 versus 1.04±0.22, P=0.001), NCB (1.18±0.33 versus 1.03±0.21, P=0.004), and HRP prevalence beyond traditional risk (odds ratio, 6.0; 95% confidence interval, 1.1-31.7; P=0.03). Last, among patients with psoriasis followed for 1 year, improvement in psoriasis severity was associated with improvement in total coronary plaque burden (β=0.45, 0.23-0.67; P<0.001) and NCB (β=0.53, 0.32-0.74; P<0.001) beyond traditional risk factors. CONCLUSIONS Patients with psoriasis had greater NCB and increased HRP prevalence than healthy volunteers. In addition, patients with psoriasis had elevated NCB and equivalent HRP prevalence as older patients with hyperlipidemia. Last, modulation of target organ inflammation (eg, skin) was associated with an improvement in NCB at 1 year, suggesting that control of remote sites of inflammation may translate into reduced coronary artery disease risk.
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Affiliation(s)
- Joseph B Lerman
- From National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD (J.B.L., A.A.J., A.C., T.M.A., A.K.D., J.A.R., T.S., J.H.C., A.R., H.L.T., M.P.P., M.Y.C., V.S., D.A.B., N.N.M.); Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, CA (J.J.W.); and DermAssociates, Silver Spring, MD (B.A.L.)
| | - Aditya A Joshi
- From National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD (J.B.L., A.A.J., A.C., T.M.A., A.K.D., J.A.R., T.S., J.H.C., A.R., H.L.T., M.P.P., M.Y.C., V.S., D.A.B., N.N.M.); Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, CA (J.J.W.); and DermAssociates, Silver Spring, MD (B.A.L.)
| | - Abhishek Chaturvedi
- From National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD (J.B.L., A.A.J., A.C., T.M.A., A.K.D., J.A.R., T.S., J.H.C., A.R., H.L.T., M.P.P., M.Y.C., V.S., D.A.B., N.N.M.); Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, CA (J.J.W.); and DermAssociates, Silver Spring, MD (B.A.L.)
| | - Tsion M Aberra
- From National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD (J.B.L., A.A.J., A.C., T.M.A., A.K.D., J.A.R., T.S., J.H.C., A.R., H.L.T., M.P.P., M.Y.C., V.S., D.A.B., N.N.M.); Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, CA (J.J.W.); and DermAssociates, Silver Spring, MD (B.A.L.)
| | - Amit K Dey
- From National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD (J.B.L., A.A.J., A.C., T.M.A., A.K.D., J.A.R., T.S., J.H.C., A.R., H.L.T., M.P.P., M.Y.C., V.S., D.A.B., N.N.M.); Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, CA (J.J.W.); and DermAssociates, Silver Spring, MD (B.A.L.)
| | - Justin A Rodante
- From National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD (J.B.L., A.A.J., A.C., T.M.A., A.K.D., J.A.R., T.S., J.H.C., A.R., H.L.T., M.P.P., M.Y.C., V.S., D.A.B., N.N.M.); Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, CA (J.J.W.); and DermAssociates, Silver Spring, MD (B.A.L.)
| | - Taufiq Salahuddin
- From National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD (J.B.L., A.A.J., A.C., T.M.A., A.K.D., J.A.R., T.S., J.H.C., A.R., H.L.T., M.P.P., M.Y.C., V.S., D.A.B., N.N.M.); Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, CA (J.J.W.); and DermAssociates, Silver Spring, MD (B.A.L.)
| | - Jonathan H Chung
- From National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD (J.B.L., A.A.J., A.C., T.M.A., A.K.D., J.A.R., T.S., J.H.C., A.R., H.L.T., M.P.P., M.Y.C., V.S., D.A.B., N.N.M.); Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, CA (J.J.W.); and DermAssociates, Silver Spring, MD (B.A.L.)
| | - Anshuma Rana
- From National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD (J.B.L., A.A.J., A.C., T.M.A., A.K.D., J.A.R., T.S., J.H.C., A.R., H.L.T., M.P.P., M.Y.C., V.S., D.A.B., N.N.M.); Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, CA (J.J.W.); and DermAssociates, Silver Spring, MD (B.A.L.)
| | - Heather L Teague
- From National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD (J.B.L., A.A.J., A.C., T.M.A., A.K.D., J.A.R., T.S., J.H.C., A.R., H.L.T., M.P.P., M.Y.C., V.S., D.A.B., N.N.M.); Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, CA (J.J.W.); and DermAssociates, Silver Spring, MD (B.A.L.)
| | - Jashin J Wu
- From National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD (J.B.L., A.A.J., A.C., T.M.A., A.K.D., J.A.R., T.S., J.H.C., A.R., H.L.T., M.P.P., M.Y.C., V.S., D.A.B., N.N.M.); Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, CA (J.J.W.); and DermAssociates, Silver Spring, MD (B.A.L.)
| | - Martin P Playford
- From National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD (J.B.L., A.A.J., A.C., T.M.A., A.K.D., J.A.R., T.S., J.H.C., A.R., H.L.T., M.P.P., M.Y.C., V.S., D.A.B., N.N.M.); Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, CA (J.J.W.); and DermAssociates, Silver Spring, MD (B.A.L.)
| | - Benjamin A Lockshin
- From National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD (J.B.L., A.A.J., A.C., T.M.A., A.K.D., J.A.R., T.S., J.H.C., A.R., H.L.T., M.P.P., M.Y.C., V.S., D.A.B., N.N.M.); Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, CA (J.J.W.); and DermAssociates, Silver Spring, MD (B.A.L.)
| | - Marcus Y Chen
- From National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD (J.B.L., A.A.J., A.C., T.M.A., A.K.D., J.A.R., T.S., J.H.C., A.R., H.L.T., M.P.P., M.Y.C., V.S., D.A.B., N.N.M.); Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, CA (J.J.W.); and DermAssociates, Silver Spring, MD (B.A.L.)
| | - Veit Sandfort
- From National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD (J.B.L., A.A.J., A.C., T.M.A., A.K.D., J.A.R., T.S., J.H.C., A.R., H.L.T., M.P.P., M.Y.C., V.S., D.A.B., N.N.M.); Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, CA (J.J.W.); and DermAssociates, Silver Spring, MD (B.A.L.)
| | - David A Bluemke
- From National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD (J.B.L., A.A.J., A.C., T.M.A., A.K.D., J.A.R., T.S., J.H.C., A.R., H.L.T., M.P.P., M.Y.C., V.S., D.A.B., N.N.M.); Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, CA (J.J.W.); and DermAssociates, Silver Spring, MD (B.A.L.)
| | - Nehal N Mehta
- From National Institutes of Health, National Heart, Lung, and Blood Institute, Bethesda, MD (J.B.L., A.A.J., A.C., T.M.A., A.K.D., J.A.R., T.S., J.H.C., A.R., H.L.T., M.P.P., M.Y.C., V.S., D.A.B., N.N.M.); Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, CA (J.J.W.); and DermAssociates, Silver Spring, MD (B.A.L.).
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Abstract
OBJECTIVE To examine if monocyte and macrophage activity may be on the mechanistic pathway to non-AIDS comorbidity by investigating the associations between plasma-soluble CD163 (sCD163) and incident non-AIDS comorbidities in well treated HIV-infected individuals. DESIGN Prospective single-center cohort study. METHODS Plasma sCD163 was quantified by ELISA technique at study entry in 2004/2005, and non-AIDS comorbidity was identified by International Classification of Disease Tenth revision diagnosis codes and registry linkage in 2015. Associations between sCD163 and incident comorbidity was examined using multivariable Cox proportional hazards models adjusted for pertinent covariates. RESULTS In HIV-1-infected individuals (n = 799), the highest quartile of plasma sCD163 was associated with incident chronic lung disease [adjusted hazard ratio (aHR), 3.2; 95% confidence interval (CI): 1.34; 7.46] and incident chronic kidney disease (aHR, 10.94; 95% CI: 2.32; 51.35), when compared with lowest quartiles. Further, (every 1 mg) increase in plasma sCD163 was positively correlated with incident liver disease (aHR, 1.12; 95% CI: 1.05; 1.19). The sCD163 level was not associated with incident cancer, cardiovascular disease or diabetes mellitus. CONCLUSION sCD163 was independently associated with incident chronic kidney disease, chronic lung disease and liver disease in treated HIV-1-infected individuals, suggesting that monocyte/macrophage activation may be involved in the pathogenesis of non-AIDS comorbidity and a potential target for therapeutic intervention.
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Hall LN, Sanchez LR, Hubbard J, Lee H, Looby SE, Srinivasa S, Zanni MV, Stanley TL, Lo J, Grinspoon SK, Fitch KV. Aspartame Intake Relates to Coronary Plaque Burden and Inflammatory Indices in Human Immunodeficiency Virus. Open Forum Infect Dis 2017; 4:ofx083. [PMID: 28695142 PMCID: PMC5499744 DOI: 10.1093/ofid/ofx083] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 04/20/2017] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Dietary sweeteners may contribute to metabolic dysregulation and cardiovascular disease (CVD), but this has not been assessed in human immunodeficiency virus (HIV). METHODS One hundred twenty-four HIV-infected and 56 non-HIV-infected participants, without history of known coronary artery disease were included. Dietary intake was assessed using a 4-day food record. Coronary plaque was determined using cardiac computed tomography angiography. RESULTS Human immunodeficiency virus-infected participants had significantly greater intake of dietary sweeteners, including total sugar (P = .03) and added sugar (P = .009); intake of aspartame (artificial sweetener) was greater among aspartame consumers with HIV versus non-HIV consumers (P = .03). Among HIV-infected participants, aspartame intake was significantly associated with coronary plaque (P = .002) and noncalcified plaque (P = .007) segments, as well as markers of inflammation/immune activation (monocyte chemoattractant protein 1 and lipoprotein-associated phospholipase A2), which may contribute to increased atherogenesis. In multivariable regression modeling, aspartame remained an independent predictor of plaque in HIV. In contrast, among non-HIV-infected participants, no sweetener type was shown to relate to plaque characteristics. CONCLUSIONS We demonstrate increased intake of dietary sweeteners and a potential novel association between aspartame intake, plaque burden, and inflammation in HIV. Our data suggest that aspartame may contribute to CVD risk in HIV. Further studies should address potential mechanisms by which aspartame may contribute to increased plaque burden and cardiovascular benefits of dietary strategies targeting aspartame intake in HIV.
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Affiliation(s)
| | - Laura R Sanchez
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston
| | - Jane Hubbard
- Clinical Research Center, Massachusetts General Hospital, Boston
| | - Hang Lee
- MGH Biostatistics Center and Harvard Medical School, Boston, Massachusetts
| | - Sara E Looby
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston
- Munn Center for Nursing Research, Massachusetts General Hospital, Boston
| | - Suman Srinivasa
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston
| | - Markella V Zanni
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston
| | - Takara L Stanley
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston
| | - Janet Lo
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston
| | - Steven K Grinspoon
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston
| | - Kathleen V Fitch
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston
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Volpe M, Uglietti A, Castagna A, Mussini C, Marchetti G, Bellagamba R, Bini T, Mancusi D, Termini R. Cardiovascular disease in women with HIV-1 infection. Int J Cardiol 2017; 241:50-56. [PMID: 28285796 DOI: 10.1016/j.ijcard.2017.02.117] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 01/30/2017] [Accepted: 02/24/2017] [Indexed: 12/14/2022]
Abstract
Cardiovascular disease is a leading cause of death in women, nevertheless it is often underestimated in female patients without overt risk factors. The chronic infection by Human Immunodeficiency Virus (HIV) is clearly associated, along with the use of certain antiretroviral drugs and traditional risk factors, with an increased risk of cardiovascular diseases. The aim of this manuscript is to review the epidemiology, risk factors, pathogenesis, diagnostic approach, primary and secondary prevention strategies of cardiovascular disease in HIV-negative and HIV-positive female subjects. The ultimate goal is to promote knowledge and development of specific and appropriate clinical interventions and guidelines in this group of high-risk patients, mostly in view of the expected growth of ageing females with HIV.
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Affiliation(s)
- Massimo Volpe
- Cardiology Unit, Department of Clinical and Molecular Medicine, Sant'Andrea Hospital, Via di Grottarossa 1035-1039, 00189, University of Rome Sapienza, Italy; IRCCS Neuromed, IS, Italy.
| | | | | | - Cristina Mussini
- Clinic of Infectious Diseases, University of Modena and Reggio Emilia, Modena, Italy
| | - Giulia Marchetti
- Department of Health Sciences, Clinic of Infectious Diseases, University of Milan, ASST Santi Paolo and Carlo, Milan, Italy
| | | | - Teresa Bini
- Department of Health Sciences, Clinic of Infectious Diseases, University of Milan, ASST Santi Paolo and Carlo, Milan, Italy
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Vos AG, Hulzebosch A, Grobbee DE, Barth RE, Klipstein-Grobusch K. Association between Immune Markers and Surrogate Markers of Cardiovascular Disease in HIV Positive Patients: A Systematic Review. PLoS One 2017; 12:e0169986. [PMID: 28085961 PMCID: PMC5234789 DOI: 10.1371/journal.pone.0169986] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 12/27/2016] [Indexed: 12/18/2022] Open
Abstract
Background HIV infection is associated with an increased risk of cardiovascular disease (CVD). Chronic low-grade immune activation is likely one of the driving mechanisms. This systematic review provides an overview of the evidence addressing the relation between immune markers and surrogate markers of CVD (except CIMT) in HIV infection. Methods A systematic search was performed in PubMed, Embase and Cochrane Library identifying all articles from 1996 to April 2015. It addressed the relation between immune markers and surrogate markers of CVD (except Carotid Intima-media Thickness) in HIV-positive adults. Two authors, using predefined criteria, independently conducted the selection of articles, critical appraisal and extraction of the data. Analysis focused on immune markers that were assessed most frequently. The review was conducted according to the PRISMA guideline and performed as part of an overarching review registered with PROSPERO (CRD42014010516). Findings Twenty-nine articles were selected, describing 34 immune markers and nine different CVD surrogate outcomes: coronary calcium score (13 times) and flow-mediated dilation (10 times) were used most frequently. Twenty-seven studies had a cross-sectional design. CRP, IL-6 and sVCAM-1 were assessed most frequently. None of the immune markers were clearly associated with any of the surrogate CVD outcomes. No effect estimate could be calculated due to marked heterogeneity in study populations, immune markers, outcomes and statistical approaches. Interpretation This review could not identify a clear association between any of the immune markers and surrogate CVD outcomes. This may reflect a true lack of association, or may be explained by heterogeneity across studies and lack of follow-up data. Future research should focus on longitudinal studies measuring a select set of immune markers and surrogate CVD outcomes awaiting the primary outcome of clinical cardiovascular events.
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Affiliation(s)
- Alinda G. Vos
- Julius Global Health, The Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Internal Medicine & Infectious Diseases, University Medical Center Utrecht, Utrecht, The Netherlands
- School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- * E-mail:
| | - Annelieke Hulzebosch
- Julius Global Health, The Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Diederick E. Grobbee
- Julius Global Health, The Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Roos E. Barth
- Department of Internal Medicine & Infectious Diseases, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Kerstin Klipstein-Grobusch
- Julius Global Health, The Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
- Division of Epidemiology and Biostatistics, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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S.S. SG, Pillai AB, Ramachandrappa VS, T. K, Dhodapkar R, Kah J, Rajendiran S. Increased serum levels of macrophage activation marker sCD163 in Dengue patients. J Clin Virol 2017; 86:62-67. [DOI: 10.1016/j.jcv.2016.10.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 10/18/2016] [Accepted: 10/19/2016] [Indexed: 10/25/2022]
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Vachiat A, McCutcheon K, Tsabedze N, Zachariah D, Manga P. HIV and Ischemic Heart Disease. J Am Coll Cardiol 2017; 69:73-82. [DOI: 10.1016/j.jacc.2016.09.979] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 08/25/2016] [Accepted: 09/20/2016] [Indexed: 10/20/2022]
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Abstract
PURPOSE OF REVIEW This article describes the potential contribution of immune activation in the pathogenesis of HIV-associated cardiovascular disease (CVD) - a leading cause of morbidity and mortality among HIV-positive persons with access to antiretroviral therapy (ART). RECENT FINDINGS We review recent literature that suggests abnormalities in both adaptive and innate immunity contributes to CVD risk among persons with HIV infection. In particular, potentially atherogenic T-cell mechanisms include persistent high-level T-cell activation (and associated proinflammatory mechanisms), as well as the presence of copathogens (e.g., cytomegalovirus) providing an ongoing stimulus for cytotoxic T-cell responses. More recent data have then emphasized the potential impact of monocyte-/macrophage-mediated inflammation and injury within atherosclerotic lesions. The abnormality driving innate immune activation many not fully reverse with antiretroviral therapy, highlighting the need for interventions that target inflammation as a CVD prevention strategy. SUMMARY Premature CVD among persons with HIV infection is due, in part, to persistent abnormalities in immune activation and systemic inflammation despite viral suppression. Prevention strategies for persons with HIV infection include those that target traditional CVD risk factors, as well as newer candidate treatments with potential immunomodulatory benefits.
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Subclinical myocyte injury, fibrosis and strain in relationship to coronary plaque in asymptomatic HIV-infected individuals. AIDS 2016; 30:2205-14. [PMID: 27314177 DOI: 10.1097/qad.0000000000001186] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Cardiovascular disease (CVD) rates are increased in HIV. The degree to which myocyte injury, strain, and fibrosis occur prior to clinical disease and relate to coronary plaque in HIV is unknown. OBJECTIVE To investigate newer cardiac biomarkers of subclinical myocyte injury [high-sensitivity troponin T (hs-cTnT)], strain (amino terminal proB-type natriutretic peptide), fibrosis (soluble ST2, Galectin-3), and vascular inflammation (oxidized LDL, lipoprotein-associated phospholipase A2) in HIV-infected individuals and non-HIV controls and relate these to coronary plaque by cardiac computed tomography angiography. DESIGN Observational. METHODS Markers were investigated in 155 HIV-infected and 70 non-HIV-infected participants without known CVD and with low traditional CVD risk and related to cardiac computed tomography angiography data. RESULTS Age, sex, and race did not differ between the groups. Hs-cTnT [3.1 (3.0, 6.4) vs. 3.0 (3.0, 4.0) ng/l, P = 0.03], Galectin-3 [13.5 (10.6, 18.1) vs. 11.6 (9.9, 14.5) ng/ml, P = 0.002], and soluble ST2 [31.5 (24.5, 41.5) vs. 28.3 (20.2, 33.5) ng/ml, P = 0.01] were significantly higher in HIV-infected participants vs. CONTROLS Detectable hs-cTnT (seen in 50% of HIV participants) related to the overall presence of plaque [odds ratio (OR) 2.3, P = 0.01] and particularly to coronary calcium (OR for Agatston calcium score > 0, 3.3, P = 0.0008 and OR for calcified plaque 7.4, P = 0.01) in HIV, but not in non-HIV. CONCLUSION Subclinical myocyte injury is observed among young, asymptomatic HIV-infected individuals with low traditional cardiac risk factors. In the setting of HIV infection, the presence of detectable cardiac troponin is strongly associated with coronary plaque, particularly calcified plaque among an asymptomatic group. Future studies are needed to assess if early subclinical injury marked by hs-cTnT predicts plaque progression and cardiac events in HIV.
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Srinivasa S, Burdo TH, Williams KC, Mitten EK, Wong K, Fitch KV, Stanley T, Adler GK, Grinspoon SK. Effects of Sodium Restriction on Activation of the Renin-Angiotensin-Aldosterone System and Immune Indices During HIV Infection. J Infect Dis 2016; 214:1336-1340. [PMID: 27549584 DOI: 10.1093/infdis/jiw392] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 08/15/2016] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Human immunodeficiency virus (HIV)-infected patients demonstrate increased activation of the renin-angiotensin-aldosterone system (RAAS). We evaluated changes in immune markers with physiological RAAS activation. METHODS Immune activation markers were assessed serially in 18 HIV-infected and 7 non-HIV-infected subjects consuming an ad libitum diet followed by a standardized low-sodium diet. RESULTS Levels of CCL-2 (P = .0004) and soluble CD163 (P = .0001) significantly increased with sodium restriction and RAAS activation, compared with levels in individuals with ad libitum sodium intake, among chronically treated HIV-infected subjects (mean duration of ART [±SEM], 11 ± 1 years), but not among non-HIV-infected subjects of similar age and sex. CONCLUSIONS Dietary sodium restriction, which activates RAAS, uniquely stimulates critical indices of immune activation during HIV infection. CLINICAL TRIALS REGISTRATION NCT01407237.
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Affiliation(s)
- Suman Srinivasa
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School
| | - Tricia H Burdo
- Department of Biology, Boston College, Chestnut Hill, Massachusetts
| | | | - Emilie K Mitten
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School
| | - Kimberly Wong
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School
| | - Kathleen V Fitch
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School
| | - Takara Stanley
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School
| | - Gail K Adler
- Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women's Hospital and Harvard Medical School, Boston
| | - Steven K Grinspoon
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School
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Non-human primate models of SIV infection and CNS neuropathology. Curr Opin Virol 2016; 19:92-8. [PMID: 27544476 DOI: 10.1016/j.coviro.2016.07.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 07/15/2016] [Accepted: 07/29/2016] [Indexed: 02/03/2023]
Abstract
Non-human primate models of AIDS and neuroAIDS are the premiere model of HIV infection of the CNS and neuropathogenesis. This review discusses current SIV infection models of neuroAIDS emphasizing findings in the last two years. Consistent in these findings is the interplay between host factors that regulate immune responses to virus and viral replication. Several rapid models of AIDS with consistent CNS pathogenesis exist, each of which modulates by antibody treatment or viruses that cause rapid immune suppression and replicate well in macrophages. Consistent in all of these models are data underscoring the importance of monocyte and macrophage activation, infection and accumulation in the CNS.
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Diaz CM, Segura ER, Luz PM, Clark JL, Ribeiro SR, De Boni R, Eksterman L, Moreira R, Currier JS, Veloso VG, Grinsztejn B, Lake JE. Traditional and HIV-specific risk factors for cardiovascular morbidity and mortality among HIV-infected adults in Brazil: a retrospective cohort study. BMC Infect Dis 2016; 16:376. [PMID: 27503230 PMCID: PMC4977901 DOI: 10.1186/s12879-016-1735-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 07/26/2016] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Antiretroviral therapy (ART) agents potentially associated with adverse metabolic profiles are commonly used in low- and middle-income countries. We assessed risk factors for cardiovascular disease (CVD)-related morbidity and mortality in a cohort of HIV-infected, ART-treated adults in Rio de Janeiro, Brazil. METHODS Hospital records and mortality data between 2000-2010 were examined for incident CVD-related ICD-10 and Coding of Death in HIV diagnoses among adults ≥18 years old on ART, enrolled in an observational cohort. Poisson regression models assessed associations between demographic and clinical characteristics and ART agent or class on CVD event risk. RESULTS Of 2960 eligible persons, 109 had a CVD event (89 hospitalizations, 20 deaths). Participants were 65 % male, 54 % white, and had median age of 37 and 4.6 years on ART. The median nadir CD4(+) T lymphocyte count was 149 cells/mm(3). The virologic suppression rate at the end of study follow-up was 60 %. In multivariable models, detectable HIV-1 RNA prior to the event, prior CVD, less time on ART, age ≥40 at study baseline, nadir CD4(+) T lymphocyte count ≤50 cells/mm(3), non-white race, male gender, and a history of hypertension were significantly associated with CVD event incidence (p < 0.05), in order of decreasing strength. In multivariate models, cumulative use of tenofovir, zidovudine, efavirenz and ritonavir-boosted atazanavir, darunavir and/or lopinavir were associated with decreased CVD event risk. Recent tenofovir and boosted atazanavir use were associated with decreased risk, while recent stavudine, nevirapine and unboosted nelfinavir and/or indinavir use were associated with increased CVD event risk. CONCLUSIONS Virologic suppression and preservation of CD4(+) T-lymphocyte counts were as important as traditional CVD risk factor burden in determining incident CVD event risk, emphasizing the overall benefit of ART on CVD risk and the need for metabolically-neutral first- and second-line ART in resource-limited settings.
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Affiliation(s)
- Chanelle M Diaz
- UCLA David Geffen School of Medicine, University of California, 11075 Santa Monica Blvd. St. 100, Los Angeles, 90025, CA, USA.,Montefiore University Hospital of Albert Einstein College of Medicine, Bronx, NY, USA
| | - Eddy R Segura
- UCLA David Geffen School of Medicine, University of California, 11075 Santa Monica Blvd. St. 100, Los Angeles, 90025, CA, USA
| | - Paula M Luz
- Fundação Oswaldo Cruz, Instituto Nacional de Infectologia Evandro Chagas, Rio de Janeiro, Brazil
| | - Jesse L Clark
- UCLA David Geffen School of Medicine, University of California, 11075 Santa Monica Blvd. St. 100, Los Angeles, 90025, CA, USA
| | - Sayonara R Ribeiro
- Fundação Oswaldo Cruz, Instituto Nacional de Infectologia Evandro Chagas, Rio de Janeiro, Brazil
| | - Raquel De Boni
- Fundação Oswaldo Cruz, Instituto Nacional de Infectologia Evandro Chagas, Rio de Janeiro, Brazil
| | - Leonardo Eksterman
- Fundação Oswaldo Cruz, Instituto Nacional de Infectologia Evandro Chagas, Rio de Janeiro, Brazil
| | - Rodrigo Moreira
- Fundação Oswaldo Cruz, Instituto Nacional de Infectologia Evandro Chagas, Rio de Janeiro, Brazil
| | - Judith S Currier
- UCLA David Geffen School of Medicine, University of California, 11075 Santa Monica Blvd. St. 100, Los Angeles, 90025, CA, USA
| | - Valdiléa G Veloso
- Fundação Oswaldo Cruz, Instituto Nacional de Infectologia Evandro Chagas, Rio de Janeiro, Brazil
| | - Beatriz Grinsztejn
- Fundação Oswaldo Cruz, Instituto Nacional de Infectologia Evandro Chagas, Rio de Janeiro, Brazil
| | - Jordan E Lake
- UCLA David Geffen School of Medicine, University of California, 11075 Santa Monica Blvd. St. 100, Los Angeles, 90025, CA, USA.
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Krikke M, Arends JE, Van Lelyveld S, Hoepelman A, Visseren F. Greater carotid intima media thickness at a younger age in HIV-infected patients compared with reference values for an uninfected cohort. HIV Med 2016; 18:275-283. [PMID: 27477496 DOI: 10.1111/hiv.12428] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/19/2016] [Indexed: 11/25/2022]
Abstract
OBJECTIVES In contrast to the general population, no decline in cardiovascular disease (CVD) has been noted in HIV-infected patients over the last 10 years. We compared the carotid artery intima media thickness (CIMT) of HIV-infected patients to that of age- and gender-matched reference values and determined the relationship between CVD risk factors and CIMT. METHODS A total of 292 HIV-infected patients were enrolled in the study. Data collected included vascular screening data, data obtained using a questionnaire, data obtained from laboratory assessments and CIMT measurement. Using linear regression (adjusted for age/gender/known HIV), the association between HIV-specific and classical cardiovascular risk factors and CIMT was evaluated. RESULTS The cohort comprised for 91% of male patients, aged 49.4 ± 10.5 years, with a known duration of HIV infection of 8.8 ± 6.7 years. The mean with standard deviation (mean ± SD) CIMT was 0.77 ± 0.19 mm, compared with 0.58 ± 0.05 mm in the controls. A steeper increase of CIMT per age was seen in the HIV-infected patients. A significant relationship between CIMT and hypertension, diabetes mellitus, smoking, systolic blood pressure, HbA1c (glycated hemoglobin) and ankle brachial index was found. Of the HIV-specific variables, only a relationship between CIMT and length of cART use and between CIMT and (inversely) current cART use was seen. CONCLUSIONS A greater CIMT was found in HIV-infected patients compared with controls. In contrast to HIV-specific variables, classical CVD risk factors were associated with a greater CIMT and should therefore be the focus of preventive measures.
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Affiliation(s)
- M Krikke
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - J E Arends
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Sfl Van Lelyveld
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands.,Department of Internal Medicine & Gastroenterology, Spaarne Gasthuis, Haarlem, The Netherlands
| | - Aim Hoepelman
- Department of Internal Medicine and Infectious Diseases, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
| | - Flj Visseren
- Department of Vascular Medicine, University Medical Center Utrecht (UMCU), Utrecht, The Netherlands
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Castley A, Williams L, James I, Guelfi G, Berry C, Nolan D. Plasma CXCL10, sCD163 and sCD14 Levels Have Distinct Associations with Antiretroviral Treatment and Cardiovascular Disease Risk Factors. PLoS One 2016; 11:e0158169. [PMID: 27355513 PMCID: PMC4927121 DOI: 10.1371/journal.pone.0158169] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 06/10/2016] [Indexed: 01/17/2023] Open
Abstract
We investigate the associations of three established plasma biomarkers in the context of HIV and treatment-related variables including a comprehensive cardiovascular disease risk assessment, within a large ambulatory HIV cohort. Patients were recruited in 2010 to form the Royal Perth Hospital HIV/CVD risk cohort. Plasma sCD14, sCD163 and CXCL10 levels were measured in 475 consecutive patients with documented CVD risk (age, ethnicity, gender, smoking, blood pressure, BMI, fasting metabolic profile) and HIV treatment history including immunological/virological outcomes. The biomarkers assessed showed distinct associations with virological response: CXCL10 strongly correlated with HIV-1 RNA (p<0.001), sCD163 was significantly reduced among 'aviraemic' patients only (p = 0.02), while sCD14 was unaffected by virological status under 10,000 copies/mL (p>0.2). Associations between higher sCD163 and protease inhibitor therapy (p = 0.05) and lower sCD14 with integrase inhibitor therapy (p = 0.02) were observed. Levels of sCD163 were also associated with CVD risk factors (age, ethnicity, HDL, BMI), with a favourable influence of Framingham score <10% (p = 0.04). Soluble CD14 levels were higher among smokers (p = 0.002), with no effect of other CVD risk factors, except age (p = 0.045). Our findings confirm CXCL10, sCD163 and sCD14 have distinct associations with different aspects of HIV infection and treatment. Levels of CXCL10 correlated with routinely monitored variables, sCD163 levels reflect a deeper level of virological suppression and influence of CVD risk factors, while sCD14 levels were not associated with routinely monitored variables, with evidence of specific effects of smoking and integrase inhibitor therapy warranting further investigation.
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Affiliation(s)
- Alison Castley
- PathWest Laboratory Medicine, Department of Clinical Immunology: Royal Perth Hospital, Perth, Western Australia, Australia
- School of Veterinary and Life Sciences, Murdoch University, Perth, Western Australia, Australia
| | - Leah Williams
- PathWest Laboratory Medicine, Department of Clinical Immunology: Royal Perth Hospital, Perth, Western Australia, Australia
| | - Ian James
- Institute for Immunology and Infectious Diseases (IIID), Murdoch University, Perth, Western Australia, Australia
| | - George Guelfi
- PathWest Laboratory Medicine, Department of Clinical Immunology: Royal Perth Hospital, Perth, Western Australia, Australia
| | - Cassandra Berry
- School of Veterinary and Life Sciences, Murdoch University, Perth, Western Australia, Australia
| | - David Nolan
- PathWest Laboratory Medicine, Department of Clinical Immunology: Royal Perth Hospital, Perth, Western Australia, Australia
- Institute for Immunology and Infectious Diseases (IIID), Murdoch University, Perth, Western Australia, Australia
- * E-mail:
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Knudsen TB, Ertner G, Petersen J, Møller HJ, Moestrup SK, Eugen-Olsen J, Kronborg G, Benfield T. Plasma Soluble CD163 Level Independently Predicts All-Cause Mortality in HIV-1-Infected Individuals. J Infect Dis 2016; 214:1198-204. [PMID: 27354366 DOI: 10.1093/infdis/jiw263] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Accepted: 05/11/2016] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND CD163, a monocyte- and macrophage-specific scavenger receptor, is shed as soluble CD163 (sCD163) during the proinflammatory response. Here, we assessed the association between plasma sCD163 levels and progression to AIDS and all-cause mortality among individuals infected with human immunodeficiency virus type 1 (HIV). METHODS Plasma sCD163 levels were measured in 933 HIV-infected individuals. Hazard ratios (HRs) with 95% confidence intervals (CIs) associated with mortality were computed by Cox proportional hazards regression. RESULTS At baseline, 86% were receiving antiretroviral treatment, 73% had plasma a HIV RNA level of <50 copies/mL, and the median CD4(+) T-cell count was 503 cells/µL. During 10.5 years of follow-up, 167 (17.9%) died. Plasma sCD163 levels were higher in nonsurvivors than in survivors (4.92 mg/L [interquartile range {IQR}, 3.29-8.65 mg/L] vs 3.16 mg/L [IQR, 2.16-4.64 mg/L]; P = .0001). The cumulative incidence of death increased with increasing plasma sCD163 levels, corresponding to a 6% or 35% increased risk of death for each milligram per liter or quartile increase, respectively, in baseline plasma sCD163 level (adjusted HR, 1.06 [95% CI, 1.03-1.09] and 1.35 [95% CI, 1.13-1.63], respectively). CONCLUSIONS Plasma sCD163 was an independent marker of all-cause mortality in a cohort of HIV-infected individuals, suggesting that monocyte/macrophage activation may play a role in HIV pathogenesis and be a target of intervention.
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Affiliation(s)
| | | | - Janne Petersen
- Optimed, Clinical Research Center Section of Biostatistics, Department of Public Health
| | | | - Søren K Moestrup
- Department of Biomedicine, Aarhus University Institute of Molecular Medicine, University of Southern Denmark, Odense
| | | | - Gitte Kronborg
- Department of Infectious Diseases Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen
| | - Thomas Benfield
- Department of Infectious Diseases Clinical Research Center, Hvidovre Hospital Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen
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Bahrami H, Budoff M, Haberlen SA, Rezaeian P, Ketlogetswe K, Tracy R, Palella F, Witt MD, McConnell MV, Kingsley L, Post WS. Inflammatory Markers Associated With Subclinical Coronary Artery Disease: The Multicenter AIDS Cohort Study. J Am Heart Assoc 2016; 5:JAHA.116.003371. [PMID: 27353609 PMCID: PMC4937277 DOI: 10.1161/jaha.116.003371] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Background Despite evidence for higher risk of coronary artery disease among HIV+ individuals, the underlying mechanisms are not well understood. We investigated associations of inflammatory markers with subclinical coronary artery disease in 923 participants of the Multicenter AIDS Cohort Study (575 HIV+ and 348 HIV− men) who underwent noncontrast computed tomography scans for coronary artery calcification, the majority (n=692) also undergoing coronary computed tomography angiography. Methods and Results Outcomes included presence and extent of coronary artery calcification, plus computed tomography angiography analysis of presence, composition, and extent of coronary plaques and severity of coronary stenosis. HIV+ men had significantly higher levels of interleukin‐6 (IL‐6), intercellular adhesion molecule‐1, C‐reactive protein, and soluble‐tumor necrosis factor‐α receptor (sTNFαR) I and II (all P<0.01) and a higher prevalence of noncalcified plaque (63% versus 54%, P=0.02) on computed tomography angiography. Among HIV+ men, for every SD increase in log‐interleukin‐6 and log intercellular adhesion molecule‐1, there was a 30% and 60% increase, respectively, in the prevalence of coronary stenosis ≥50% (all P<0.05). Similarly, sTNFαR I and II in HIV+ participants were associated with an increase in prevalence of coronary stenosis ≥70% (P<0.05). Higher levels of interleukin‐6, sTNFαR I, and sTNFαR II were also associated with greater coronary artery calcification score in HIV+ men (P<0.01). Conclusions Higher inflammatory marker levels are associated with greater prevalence of coronary stenosis in HIV+ men. Our findings underscore the need for further study to elucidate the relationships of inflammatory pathways with coronary artery disease in HIV+ individuals.
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Affiliation(s)
- Hossein Bahrami
- Division of Cardiovascular Medicine, Keck School of Medicine of University of Southern California, Los Angeles, CA Cardiovascular Institute and Division of Cardiovascular Medicine, Stanford University, Stanford, CA
| | - Matthew Budoff
- Division of Cardiology, Harbor-UCLA Medical Center, Torrance, CA
| | - Sabina A Haberlen
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Pantea Rezaeian
- Division of Cardiology, Harbor-UCLA Medical Center, Torrance, CA
| | - Kerunne Ketlogetswe
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Russell Tracy
- Departments of Pathology & Laboratory Medicine, and Biochemistry, University of Vermont College of Medicine, Colchester, VT
| | | | | | - Michael V McConnell
- Cardiovascular Institute and Division of Cardiovascular Medicine, Stanford University, Stanford, CA
| | | | - Wendy S Post
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD Division of Cardiology, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, MD
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d’Ettorre G, Ceccarelli G, Pavone P, Vittozzi P, De Girolamo G, Schietroma I, Serafino S, Giustini N, Vullo V. What happens to cardiovascular system behind the undetectable level of HIV viremia? AIDS Res Ther 2016; 13:21. [PMID: 27127532 PMCID: PMC4848790 DOI: 10.1186/s12981-016-0105-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 04/14/2016] [Indexed: 11/08/2022] Open
Abstract
Despite the combined antiretroviral therapy has improved the length and quality of life of HIV infected patients, the survival of these patients is always decreased compared with the general population. This is the consequence of non-infectious illnesses including cardio vascular diseases. In fact large studies have indicated an increased risk of coronary atherosclerotic disease, myocardial infarction even in HIV patients on cART. In HIV infected patients several factors may contribute to the pathogenesis of cardiovascular problems: life-style, metabolic parameters, genetic predisposition, viral factors, immune activation, chronic inflammation and side effects of antiretroviral therapy. The same factors may also contribute to complicate the clinical management of these patients. Therefore, treatment of these non-infectious illnesses in HIV infected population is an emerging challenge for physicians. The purpose of this review is to focus on the new insights in non AIDS-related cardiovascular diseases in patients with suppressed HIV viremia.
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130
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Barriers to a cure for HIV in women. J Int AIDS Soc 2016; 19:20706. [PMID: 26900031 PMCID: PMC4761692 DOI: 10.7448/ias.19.1.20706] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 01/29/2016] [Accepted: 02/02/2016] [Indexed: 12/19/2022] Open
Abstract
Introduction Distinct biological factors exist that affect the natural history of HIV and the host immune response between women and men. These differences must be addressed to permit the optimal design of effective HIV eradication strategies for much of the HIV-positive population. Methods and results Here, we review the literature on sex-based differences in HIV pathogenesis and natural history in tissues and anatomic compartments, HIV latency and transcriptional activity, and host immunity including the role of sex hormones. We then outline the potential effects of these differences on HIV persistence, and on the safety and efficacy of HIV eradication and curative interventions. Finally, we discuss the next steps necessary to elucidate these factors to achieve a cure for HIV, taking in account the complex ethical issues and the regulatory landscape in the hopes of stimulating further research and awareness in these areas. Conclusions Targeted enrolment of women in clinical trials and careful sex-based analysis will be crucial to gain further insights into sex-based differences in HIV persistence and to design sex-specific approaches to HIV eradication, if required.
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131
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Elevated Soluble CD14 and Lower D-Dimer Are Associated With Cigarette Smoking and Heavy Episodic Alcohol Use in Persons Living With HIV. J Acquir Immune Defic Syndr 2016; 70:400-5. [PMID: 26181818 DOI: 10.1097/qai.0000000000000759] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Persons living with HIV are at increased risk for cardiovascular disease in part because of persistent inflammation and coagulation activation. METHODS We examined whether smoking and heavy episodic alcohol use (defined as 5 or more drinks on one occasion) were associated with greater monocyte activation (soluble CD14) and coagulation (D-dimer) in participants in the Study to Understand the Natural History of HIV and AIDS in the Era of Effective Therapy (the "SUN" Study), a prospective observational cohort. RESULTS Using regression analysis (n = 689), current smoking compared with nonsmoking was associated with significantly elevated soluble CD14 (B = 135.57, 95% confidence interval: 84.95 to 186.19, P < 0.001), whereas heavy alcohol use compared with nonheavy use was associated with significantly lower D-dimer levels (B = -0.059, 95% confidence interval: -0.102 to -0.016, P = 0.007). CONCLUSIONS Smoking cessation should be encouraged by HIV care providers to improve mortality outcomes from all causes of death, particularly cardiovascular disease.
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Royal W, Cherner M, Burdo TH, Umlauf A, Letendre SL, Jumare J, Abimiku A, Alabi P, Alkali N, Bwala S, Okwuasaba K, Eyzaguirre LM, Akolo C, Guo M, Williams KC, Blattner WA. Associations between Cognition, Gender and Monocyte Activation among HIV Infected Individuals in Nigeria. PLoS One 2016; 11:e0147182. [PMID: 26829391 PMCID: PMC4734765 DOI: 10.1371/journal.pone.0147182] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 12/30/2015] [Indexed: 01/06/2023] Open
Abstract
The potential role of gender in the occurrence of HIV-related neurocognitive impairment (NCI) and associations with markers of HIV-related immune activity has not been previously examined. In this study 149 antiretroviral-naïve seropositive subjects in Nigeria (SP, 92 women and 57 men) and 58 seronegative (SN, 38 women and 20 men) were administered neuropsychological testing that assessed 7 ability domains. From the neuropsychological test scores was calculated a global deficit score (GDS), a measure of overall NCI. Percentages of circulating monocytes and plasma HIV RNA, soluble CD163 and soluble CD14 levels were also assessed. HIV SP women were found to be younger, more educated and had higher CD4+ T cell counts and borderline higher viral load measures than SP men. On the neuropsychological testing, SP women were more impaired in speed of information processing and verbal fluency and had a higher mean GDS than SN women. Compared to SP men, SP women were also more impaired in speed of information processing and verbal fluency as well as on tests of learning and memory. Numbers of circulating monocytes and plasma sCD14 and sCD163 levels were significantly higher for all SP versus all SN individuals and were also higher for SP women and for SP men versus their SN counterparts. Among SP women, soluble CD14 levels were slightly higher than for SP men, and SP women had higher viral load measurements and were more likely to have detectable virus than SP men. Higher sCD14 levels among SP women correlated with more severe global impairment, and higher viral load measurements correlated with higher monocyte numbers and sCD14 and sCD14 levels, associations that were not observed for SP men. These studies suggest that the risk of developing NCI differ for HIV infected women and men in Nigeria and, for women, may be linked to effects from higher plasma levels of HIV driving activation of circulating monocytes.
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Affiliation(s)
- Walter Royal
- Department of Neurology, University of Maryland, School of Medicine, Baltimore, Maryland, United States of America
- * E-mail:
| | - Mariana Cherner
- HIV Neurobehavioral Research Center, University of California San Diego, School of Medicine, San Diego, California, United States of America
| | - Tricia H. Burdo
- Department of Biology, Boston College, Chestnut Hill, Massachusetts, United States of America
| | - Anya Umlauf
- HIV Neurobehavioral Research Center, University of California San Diego, School of Medicine, San Diego, California, United States of America
| | - Scott L. Letendre
- Department of Biology, Boston College, Chestnut Hill, Massachusetts, United States of America
| | - Jibreel Jumare
- Institute for Human Virology, University of Maryland, School of Medicine, Baltimore, Maryland, United States of America
- Institute for Human Virology-Nigeria, Abuja, Nigeria
| | - Alash’le Abimiku
- Institute for Human Virology, University of Maryland, School of Medicine, Baltimore, Maryland, United States of America
- Institute for Human Virology-Nigeria, Abuja, Nigeria
| | - Peter Alabi
- University of Abuja Teaching Hospital, Gwagwalada, Abuja, Nigeria
| | - Nura Alkali
- Abubakar Tafawa Balewa University Teaching Hospital, Bauchi, Nigeria
| | | | - Kanayo Okwuasaba
- Institute for Human Virology, University of Maryland, School of Medicine, Baltimore, Maryland, United States of America
- Institute for Human Virology-Nigeria, Abuja, Nigeria
| | | | - Christopher Akolo
- Institute for Human Virology, University of Maryland, School of Medicine, Baltimore, Maryland, United States of America
- Institute for Human Virology-Nigeria, Abuja, Nigeria
| | - Ming Guo
- Department of Neurology, University of Maryland, School of Medicine, Baltimore, Maryland, United States of America
| | - Kenneth C. Williams
- Department of Biology, Boston College, Chestnut Hill, Massachusetts, United States of America
| | - William A. Blattner
- Institute for Human Virology, University of Maryland, School of Medicine, Baltimore, Maryland, United States of America
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Reduced ovarian reserve relates to monocyte activation and subclinical coronary atherosclerotic plaque in women with HIV. AIDS 2016; 30:383-93. [PMID: 26696388 DOI: 10.1097/qad.0000000000000902] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To investigate differences in subclinical coronary atherosclerotic plaque and markers of immune activation among HIV-infected and non-HIV-infected women categorized by degree of ovarian reserve and menopause status. DESIGN Cross-sectional evaluation. METHODS Seventy-four women (49 HIV-infected, 25 non-HIV-infected) without known cardiovascular disease (CVD) were classified as premenopausal, premenopausal with reduced ovarian reserve, or postmenopausal based on menstrual history and anti-Müllerian hormone (AMH) levels. Participants underwent contrast-enhanced coronary computed tomography angiography and immune phenotyping. Comparisons in coronary atherosclerotic plaque burden and immune markers were made between the HIV-infected and non-HIV-infected women overall and within the HIV-infected and non-HIV-infected women by reproductive classification group. RESULTS Among the overall group of HIV-infected women, the women with reduced ovarian reserve (undetectable AMH) had a higher prevalence of coronary atherosclerotic plaque (52 versus 6%, P = 0.0007) and noncalcified plaque (48 versus 6%, P = 0.002), as well as higher levels of log sCD163 (P = 0.0004) and log MCP-1 (P = 0.006), compared with the premenopausal women with measurable AMH. Furthermore, reduced ovarian reserve in the HIV-infected group related to noncalcified plaque, controlling for traditional CVD risk factors (P = 0.04) and sCD163 (P = 0.03). CONCLUSION HIV-infected women with reduced ovarian reserve have increased subclinical coronary atherosclerotic plaque compared with premenopausal women in whom AMH is measurable. This relationship holds when controlling for CVD risk factors (including age) and immune activation. Our findings demonstrate that reduced ovarian reserve may contribute to CVD burden in HIV-infected women and support a comprehensive assessment of CVD risk prior to completion of menopause in this population.
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134
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Kasang C, Kalluvya S, Majinge C, Kongola G, Mlewa M, Massawe I, Kabyemera R, Magambo K, Ulmer A, Klinker H, Gschmack E, Horn A, Koutsilieri E, Preiser W, Hofmann D, Hain J, Müller A, Dölken L, Weissbrich B, Rethwilm A, Stich A, Scheller C. Effects of Prednisolone on Disease Progression in Antiretroviral-Untreated HIV Infection: A 2-Year Randomized, Double-Blind Placebo-Controlled Clinical Trial. PLoS One 2016; 11:e0146678. [PMID: 26812052 PMCID: PMC4727920 DOI: 10.1371/journal.pone.0146678] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Accepted: 12/18/2015] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND HIV-disease progression correlates with immune activation. Here we investigated whether corticosteroid treatment can attenuate HIV disease progression in antiretroviral-untreated patients. METHODS Double-blind, placebo-controlled randomized clinical trial including 326 HIV-patients in a resource-limited setting in Tanzania (clinicaltrials.gov NCT01299948). Inclusion criteria were a CD4 count above 300 cells/μl, the absence of AIDS-defining symptoms and an ART-naïve therapy status. Study participants received 5 mg prednisolone per day or placebo for 2 years. Primary endpoint was time to progression to an AIDS-defining condition or to a CD4-count below 200 cells/μl. RESULTS No significant change in progression towards the primary endpoint was observed in the intent-to-treat (ITT) analysis (19 cases with prednisolone versus 28 cases with placebo, p = 0.1407). In a per-protocol (PP)-analysis, 13 versus 24 study participants progressed to the primary study endpoint (p = 0.0741). Secondary endpoints: Prednisolone-treatment decreased immune activation (sCD14, suPAR, CD38/HLA-DR/CD8+) and increased CD4-counts (+77.42 ± 5.70 cells/μl compared to -37.42 ± 10.77 cells/μl under placebo, p < 0.0001). Treatment with prednisolone was associated with a 3.2-fold increase in HIV viral load (p < 0.0001). In a post-hoc analysis stratifying for sex, females treated with prednisolone progressed significantly slower to the primary study endpoint than females treated with placebo (ITT-analysis: 11 versus 21 cases, p = 0.0567; PP-analysis: 5 versus 18 cases, p = 0.0051): No changes in disease progression were observed in men. CONCLUSIONS This study could not detect any significant effects of prednisolone on disease progression in antiretroviral-untreated HIV infection within the intent-to-treat population. However, significant effects were observed on CD4 counts, immune activation and HIV viral load. This study contributes to a better understanding of the role of immune activation in the pathogenesis of HIV infection. TRIAL REGISTRATION ClinicalTrials.gov NCT01299948.
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Affiliation(s)
- Christa Kasang
- University of Würzburg, Institute of Virology and Immunobiology, Versbacher Strasse 7, 97078 Würzburg, Germany
- Medical Mission Institute, Salvatorstrasse 7, 97067 Würzburg, Germany
| | - Samuel Kalluvya
- Bugando Medical Centre, P.O. Box 1370, Mwanza, Tanzania
- Catholic University of Health and Allied Sciences, P.O. Box 1464, Mwanza, Tanzania
| | | | - Gilbert Kongola
- Catholic University of Health and Allied Sciences, P.O. Box 1464, Mwanza, Tanzania
| | - Mathias Mlewa
- University of Würzburg, Institute of Virology and Immunobiology, Versbacher Strasse 7, 97078 Würzburg, Germany
- Bugando Medical Centre, P.O. Box 1370, Mwanza, Tanzania
| | - Irene Massawe
- Bugando Medical Centre, P.O. Box 1370, Mwanza, Tanzania
| | | | | | - Albrecht Ulmer
- HIV-Intensive Care Unit, Schwabstr. 26, 70197 Stuttgart, Germany
| | - Hartwig Klinker
- University Clinic of Würzburg, Division of Infectious Diseases, Dept. of Internal Medicine, Josef-Schneider-Str. 2, 97080 Würzburg, Germany
| | - Eva Gschmack
- University of Würzburg, Institute of Virology and Immunobiology, Versbacher Strasse 7, 97078 Würzburg, Germany
| | - Anne Horn
- University of Würzburg, Institute of Virology and Immunobiology, Versbacher Strasse 7, 97078 Würzburg, Germany
| | - Eleni Koutsilieri
- University of Würzburg, Institute of Virology and Immunobiology, Versbacher Strasse 7, 97078 Würzburg, Germany
| | - Wolfgang Preiser
- Division of Medical Virology, National Health Laboratory Service / University of Stellenbosch, Tygerberg 7505, South Africa
| | - Daniela Hofmann
- University of Würzburg, Institute of Virology and Immunobiology, Versbacher Strasse 7, 97078 Würzburg, Germany
| | - Johannes Hain
- University of Würzburg, Institute of Mathematics and Informatics, Chair of Mathematics VIII (Statistics), Am Hubland, 97074 Würzburg, Germany
| | - Andreas Müller
- Medical Mission Institute, Salvatorstrasse 7, 97067 Würzburg, Germany
| | - Lars Dölken
- University of Würzburg, Institute of Virology and Immunobiology, Versbacher Strasse 7, 97078 Würzburg, Germany
| | - Benedikt Weissbrich
- University of Würzburg, Institute of Virology and Immunobiology, Versbacher Strasse 7, 97078 Würzburg, Germany
| | - Axel Rethwilm
- University of Würzburg, Institute of Virology and Immunobiology, Versbacher Strasse 7, 97078 Würzburg, Germany
| | - August Stich
- Medical Mission Institute, Salvatorstrasse 7, 97067 Würzburg, Germany
| | - Carsten Scheller
- University of Würzburg, Institute of Virology and Immunobiology, Versbacher Strasse 7, 97078 Würzburg, Germany
- * E-mail:
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Saini V, Otero D, Gnoni M, Cates D, Ramirez J. Kawasaki-like disease (KLD) in an adult with congenital HIV infection. HIV & AIDS REVIEW 2016. [DOI: 10.1016/j.hivar.2015.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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136
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Fogel GB, Lamers SL, Liu ES, Salemi M, McGrath MS. Identification of dual-tropic HIV-1 using evolved neural networks. Biosystems 2015; 137:12-9. [PMID: 26419858 PMCID: PMC4921197 DOI: 10.1016/j.biosystems.2015.09.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 09/24/2015] [Accepted: 09/26/2015] [Indexed: 02/07/2023]
Abstract
Blocking the binding of the envelope HIV-1 protein to immune cells is a popular concept for development of anti-HIV therapeutics. R5 HIV-1 binds CCR5, X4 HIV-1 binds CXCR4, and dual-tropic HIV-1 can bind either coreceptor for cellular entry. R5 viruses are associated with early infection and over time can evolve to X4 viruses that are associated with immune failure. Dual-tropic HIV-1 is less studied; however, it represents functional antigenic intermediates during the transition of R5 to X4 viruses. Viral tropism is linked partly to the HIV-1 envelope V3 domain, where the amino acid sequence helps dictate the receptor a particular virus will target; however, using V3 sequence information to identify dual-tropic HIV-1 isolates has remained difficult. Our goal in this study was to elucidate features of dual-tropic HIV-1 isolates that assist in the biological understanding of dual-tropism and develop an approach for their detection. Over 1559 HIV-1 subtype B sequences with known tropisms were analyzed. Each sequence was represented by 73 structural, biochemical and regional features. These features were provided to an evolved neural network classifier and evaluated using balanced and unbalanced data sets. The study resolved R5X4 viruses from R5 with an accuracy of 81.8% and from X4 with an accuracy of 78.8%. The approach also identified a set of V3 features (hydrophobicity, structural and polarity) that are associated with tropism transitions. The ability to distinguish R5X4 isolates will improve computational tropism decisions for R5 vs. X4 and assist in HIV-1 research and drug development efforts.
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Affiliation(s)
- Gary B Fogel
- Natural Selection, Inc., San Diego, CA 92121, United States
| | | | - Enoch S Liu
- Natural Selection, Inc., San Diego, CA 92121, United States
| | - Marco Salemi
- University of Florida, Department of Pathology and Laboratory Medicine, Gainesville, FL 32610, United States
| | - Michael S McGrath
- University of California at San Francisco, Department of Laboratory Medicine and The AIDS and Cancer Specimen Resource, San Francisco, CA 94143, United States
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McCausland MR, Juchnowski SM, Zidar DA, Kuritzkes DR, Andrade A, Sieg SF, Lederman MM, Funderburg NT. Altered Monocyte Phenotype in HIV-1 Infection Tends to Normalize with Integrase-Inhibitor-Based Antiretroviral Therapy. PLoS One 2015; 10:e0139474. [PMID: 26430882 PMCID: PMC4591977 DOI: 10.1371/journal.pone.0139474] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 09/14/2015] [Indexed: 12/31/2022] Open
Abstract
Background Monocytes are increasingly implicated in the inflammatory consequences of HIV-1 disease, yet their phenotype following antiretroviral therapy (ART) initiation is incompletely defined. Here, we define more completely monocyte phenotype both prior to ART initiation and during 48 weeks of ART. Methods Cryopreserved peripheral blood mononuclear cells (PBMCs) were obtained at baseline (prior to ART initiation) and at weeks 12, 24, and 48 of treatment from 29 patients participating in ACTG clinical trial A5248, an open label study of raltegravir/emtricitibine/tenofovir administration. For comparison, cryopreserved PBMCs were obtained from 15 HIV-1 uninfected donors, each of whom had at least two cardiovascular risk factors. Thawed samples were stained for monocyte subset markers (CD14 and CD16), HLA-DR, CCR2, CX3CR1, CD86, CD83, CD40, CD38, CD36, CD13, and CD163 and examined using flow cytometry. Results In untreated HIV-1 infection there were perturbations in monocyte subset phenotypes, chiefly a higher frequency and density (mean fluorescence intensity–MFI) of HLA-DR (%-p = 0.004, MFI-p = .0005) and CD86 (%-p = 0.012, MFI-p = 0.005) expression and lower frequency of CCR2 (p = 0.0002) expression on all monocytes, lower CCR2 density on inflammatory monocytes (p = 0.045) when compared to the expression and density of these markers in controls’ monocytes. We also report lower expression of CX3CR1 (p = 0.014) on patrolling monocytes at baseline, compared to levels seen in controls. After ART, these perturbations tended to improve, with decreasing expression and density of HLA-DR and CD86, increasing CCR2 density on inflammatory monocytes, and increasing expression and density of CX3CR1 on patrolling monocytes. Conclusions In HIV-1 infected patients, ART appears to attenuate the high levels of activation (HLA-DR, CD86) and to increase expression of the chemokine receptors CCR2 and CX3CR1 on monocyte populations. Circulating monocyte phenotypes are altered in untreated infection and tend to normalize with ART; the role of these cells in the inflammatory environment of HIV-1 infection warrants further study.
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Affiliation(s)
- Marie R. McCausland
- Division of Infectious Disease, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America
| | - Steven M. Juchnowski
- Harrington Heart & Vascular Institute, University Hospitals Case Medical Center, Cleveland, Ohio, United States of America
| | - David A. Zidar
- Division of Infectious Disease, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America
- Harrington Heart & Vascular Institute, University Hospitals Case Medical Center, Cleveland, Ohio, United States of America
| | - Daniel R. Kuritzkes
- Division of Infectious Diseases, Brigham and Women’s Hospital, and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Adriana Andrade
- Department of Medicine, Division of Infectious Diseases, John Hopkins University, Baltimore, Maryland, United States of America
| | - Scott F. Sieg
- Division of Infectious Disease, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America
| | - Michael M. Lederman
- Division of Infectious Disease, Case Western Reserve University School of Medicine, Cleveland, Ohio, United States of America
- * E-mail:
| | - Nicholas T. Funderburg
- School of Health and Rehabilitation Sciences, Division of Medical Laboratory Science, Ohio State University, Columbus, Ohio, United States of America
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Ticona E, Bull ME, Soria J, Tapia K, Legard J, Styrchak SM, Williams C, Mitchell C, Rosa AL, Coombs RW, Frenkel LM, Frenkel LM. Biomarkers of inflammation in HIV-infected Peruvian men and women before and during suppressive antiretroviral therapy. AIDS 2015; 29:1617-22. [PMID: 26372272 DOI: 10.1097/qad.0000000000000758] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Inflammatory biomarkers associated with cardiovascular disease are elevated in HIV-infected persons. These biomarkers improve with antiretroviral therapy (ART) but do not normalize to values observed in HIV-uninfected adults. Little is known regarding biomarkers of inflammation in HIV-infected Peruvians, in whom an increased burden of infectious diseases may exacerbate inflammation, and women, in whom sex difference may alter inflammation compared with men. METHODS Peruvians initiating first-line ART were enrolled in a prospective observational study. Individuals with suppression of HIV RNA plasma loads to less than 30 copies/ml when determined quarterly over 24 months of ART, had biomarkers of inflammation and cellular activation measured pre-ART and at 24-months of ART, and evaluated for associations with sex and clinical parameters. RESULTS Pre-ART high-sensitivity C-reactive protein (hsCRP) values of men were in the high-risk cardiovascular disease category (>3.0 mg/l) more frequently compared with women (P = 0.02); most women's values were in the low/average-risk categories. At 24 months of suppressive ART, hsCRP concentrations decreased in men (P = 0.03), but tended to increase in women, such that the proportion with high-risk hsCRP did not differ by sex. Pre-ART, soluble CD163 concentrations were higher in women compared with men (P = 0.02), and remained higher after 24 months of suppressive ART (P = 0.02). All other inflammatory biomarkers (P < 0.03) decreased across sexes. Biomarker concentrations were not associated with BMI or coinfections. CONCLUSION Elevated inflammatory biomarkers persisted despite 24 months of suppressive ART in a subset of Peruvians, and to a greater extent in women compared with men. These findings suggest that lifestyle or pharmacologic interventions may be required to optimize the health of HIV-infected Peruvians, particularly women.
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139
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Monocytes from HIV-infected individuals show impaired cholesterol efflux and increased foam cell formation after transendothelial migration. AIDS 2015; 29:1445-57. [PMID: 26244384 DOI: 10.1097/qad.0000000000000739] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
DESIGN HIV-infected (HIV+) individuals have an increased risk of atherosclerosis and cardiovascular disease which is independent of antiretroviral therapy and traditional risk factors. Monocytes play a central role in the development of atherosclerosis, and HIV-related chronic inflammation and monocyte activation may contribute to increased atherosclerosis, but the mechanisms are unknown. METHODS Using an in-vitro model of atherosclerotic plaque formation, we measured the transendothelial migration of purified monocytes from age-matched HIV+ and uninfected donors and examined their differentiation into foam cells. Cholesterol efflux and the expression of cholesterol metabolism genes were also assessed. RESULTS Monocytes from HIV+ individuals showed increased foam cell formation compared with controls (18.9 vs. 0%, respectively, P = 0.004) and serum from virologically suppressed HIV+ individuals potentiated foam cell formation by monocytes from both uninfected and HIV+ donors. Plasma tumour necrosis factor (TNF) levels were increased in HIV+ vs. control donors (5.9 vs. 3.5 pg/ml, P = 0.02) and foam cell formation was inhibited by blocking antibodies to TNF receptors, suggesting a direct effect on monocyte differentiation to foam cells. Monocytes from virologically suppressed HIV+ donors showed impaired cholesterol efflux and decreased expression of key genes regulating cholesterol metabolism, including the cholesterol transporter ABCA1 (P = 0.02). CONCLUSION Monocytes from HIV+ individuals show impaired cholesterol efflux and are primed for foam cell formation following transendothelial migration. Factors present in HIV+ serum, including elevated TNF levels, further enhance foam cell formation. The proatherogenic phenotype of monocytes persists in virologically suppressed HIV+ individuals and may contribute mechanistically to increased atherosclerosis in this population.
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140
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141
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Rokx C, Richman DD, Müller-Trutwin M, Silvestri G, Lunzen J, Khoo S, Lichterfeld M, Altfeld M, Perno CF, Hunt PW, Mallon P, Rockstroh JK, Pozniak AL, Clotet B, Boucher CAB. Second European Round Table on the Future Management of HIV: 10-11 October 2014, Barcelona, Spain. J Virus Erad 2015; 1:211-20. [PMID: 27482415 PMCID: PMC4946744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The Second European Round Table on the Future Management of HIV took place in Barcelona, 10-11 October 2014 and focused on the HIV-1 reservoir, strategies for HIV cure and primary HIV infection (PHI). Important issues in the HIV-1 reservoir research field are the validity of reservoir measurement techniques and the potential of new drugs to target latently infected cells. Current HIV-1 cure concepts are based on theoretical assumptions of biologically plausible mechanisms, supported by several clinical observations. Three main potential strategies are under investigation in order to achieve a sterilising cure or maintain HIV-1 remission: latency reversal resulting in antigen expression and viral cytolysis or immune targeted cell-death; immunological control of the reservoir; or replacement of the complete autologous haematopoietic and lymphoid stem-cell repertoire by transplantation. An interesting opportunity for restricting the size of the reservoir entails the early initiation of antiretroviral treatment (ART) during PHI. In terms of the reservoir, early treatment limits its size, alters its composition, and restricts the genetic variability of integrated proviral HIV-1 DNA. The challenges ahead involve the identification of patients undergoing seroconversion to HIV-1 and the prompt initiation of treatment. How the seemingly beneficial impact of early treatment will make cure more feasible, and whether the positive effects of the cure efforts outweigh the potentially negative impact of life-long ART, are important aspects of future collaborative research prospects.
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Affiliation(s)
- Casper Rokx
- Erasmus Medical Center,
Erasmus University,
Rotterdam,
the Netherlands
| | - Douglas D Richman
- VA San Diego Healthcare System and University of California,
San Diego,
USA
| | | | | | - Jan Lunzen
- University Medical Center Hamburg-Eppendorf,
Hamburg,
Germany
| | | | | | | | | | | | | | | | | | - Bonaventura Clotet
- Unitat VIH, Irsicaixa Foundation,
Hospital Universitari Germans Trias i Pujol, UAB, UVIC-UCC,
Badalona,
Catalonia,
Spain
| | - Charles AB Boucher
- Viroscience, Erasmus Medical Center,
Erasmus University,
Rotterdam,
the Netherlands
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142
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O'Halloran JA, Dunne E, Gurwith M, Lambert JS, Sheehan GJ, Feeney ER, Pozniak A, Reiss P, Kenny D, Mallon P. The effect of initiation of antiretroviral therapy on monocyte, endothelial and platelet function in HIV-1 infection. HIV Med 2015; 16:608-19. [PMID: 26111187 DOI: 10.1111/hiv.12270] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/12/2015] [Indexed: 12/23/2022]
Abstract
OBJECTIVES Monocyte activation, endothelial dysfunction and platelet activation all potentially contribute to the increased risk of cardiovascular disease (CVD) reported in those with HIV-1 infection. To date, no study has examined how initiation of antiretroviral therapy (ART) affects markers of all three processes. We aimed to compare markers of monocyte, endothelial and platelet function between untreated HIV-positive subjects and HIV-negative controls and to examine the early effects of ART initiation on these markers. METHODS We measured monocyte [soluble CD14 (sCD14) and sCD163], endothelial [von Willebrand factor (vWF), intercellular adhesion molecule-1 (ICAM-1) and vascular adhesion molecule-1 (VCAM-1)] and platelet [soluble P-selectin (sP-selectin), soluble CD40 ligand (sCD40L) and soluble glycoprotein VI (sGPVI)] biomarkers before and at weeks 4 and 12 post ART initiation in HIV-positive and well-matched HIV-negative controls. RESULTS We examined 40 subjects, 25 HIV-positive subjects and 15 controls, with a median age of 34 years [interquartile range (IQR) 31, 40 years], of whom 60% were male and 47.5% Caucasian. Pre-ART, all biomarkers (monocyte, endothelial and platelet) were significantly higher in HIV-positive patients versus controls (all P < 0.05) and decreased with ART initiation, except for sCD14, which remained unchanged [median 1680 (IQR 1489, 1946) ng/mL at week 12 versus 1570 (IQR 1287, 2102) ng/mL at week 0; P = 0.7]. Although platelet activation markers reduced to levels comparable to those in controls, endothelial dysfunction markers remained elevated, as did sCD163 [at week 12, median 1005 (IQR 791, 1577) ng/mL in HIV-positive patients versus 621 (IQR 406, 700) ng/mL in controls; P < 0.0001]. CONCLUSIONS ART initiation resulted in reductions in levels of CVD-associated biomarkers; however, although they improved, markers of endothelial dysfunction and monocyte activation remained elevated. How these persistent abnormalities affect CVD risk in HIV infection remains to be determined.
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Affiliation(s)
- J A O'Halloran
- HIV Molecular Research Group, School of Medicine and Medical Science, University College Dublin, Dublin, Ireland
| | - E Dunne
- Cardiovascular Biology Group, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Mmp Gurwith
- HIV Molecular Research Group, School of Medicine and Medical Science, University College Dublin, Dublin, Ireland
| | - J S Lambert
- HIV Molecular Research Group, School of Medicine and Medical Science, University College Dublin, Dublin, Ireland
| | - G J Sheehan
- HIV Molecular Research Group, School of Medicine and Medical Science, University College Dublin, Dublin, Ireland
| | - E R Feeney
- HIV Molecular Research Group, School of Medicine and Medical Science, University College Dublin, Dublin, Ireland
| | - A Pozniak
- HIV Directorate, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | - P Reiss
- Department of Global Health and Stichting HIV Monitoring, University of Amsterdam, Academic Medical Center, Amsterdam, The Netherlands
| | - D Kenny
- Cardiovascular Biology Group, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Pwg Mallon
- HIV Molecular Research Group, School of Medicine and Medical Science, University College Dublin, Dublin, Ireland
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143
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Sathekge M, Maes A, Van de Wiele C, Dadachova E. Effect of AIDS on women who have sex-determined health issues. Semin Nucl Med 2015; 44:489-98. [PMID: 25362238 DOI: 10.1053/j.semnuclmed.2014.06.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Worldwide, women account for a growing percentage of human immunodeficiency virus (HIV)-infected patients and more than half of all HIV infections. For many years, morphologic imaging methods were the main approaches employed to investigate HIV and its complications. However, during the past decade, advancements in PET and SPECT imaging technologies opened new possibilities for improved understanding of the pathophysiological processes in HIV. Diagnosis of early HIV-associated neurocognitive disorders (HAND) is important, as many of its symptoms can be caused by other conditions common to people with HIV/AIDS. Presently, there are no PET and SPECT tracers or combination of markers for HAND, hence novel HAND-specific tracers are needed if nuclear medicine is to play a role in solving the problem of the HAND "epidemic." As both highly active antiretroviral therapy (HAART)-induced lipoatrophy and cardiovascular diseases are characterized by ongoing inflammation, FDG-PET/CT imaging may represent an important imaging technique for better understanding the metabolic risk in HIV-infected women on HAART. HIV-infected women are at increased risk for the development of human papilloma virus-associated neoplasms such as cervical and anal carcinomas; these aggressive tumors could be treated better with integration of FDG-PET as part of the standard pretreatment workup. A similar value of FDG-PET may be realized in women with HIV-associated Kaposi sarcoma, as they have more extensive cutaneous disease than men do. In the era of HAART, the incidence and local invasiveness of breast cancer may change, thus creating a need to redefine the pathophysiology of breast cancer in HIV-positive women. Finally, mammary tuberculosis, occasionally the presenting symptom in HIV-infected women, may present with nonspecific clinical, radiological, and histologic findings. In these women, FDG-PET can be of value to detect the lesion for a representative biopsy, staging to exclude pulmonary and other extrapulmonary lesions, and also for therapy monitoring.
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Affiliation(s)
- Mike Sathekge
- Department of Nuclear Medicine, University of Pretoria, Pretoria, South Africa.
| | - Alex Maes
- Department of Nuclear Medicine, University of Pretoria, Pretoria, South Africa; Department of Nuclear Medicine, AZ Groeninge, Kortrijk, Belgium; Department of Morphology and Medical Imaging, University Hospital Leuven, Leuven, Belgium
| | - Christophe Van de Wiele
- Department of Nuclear Medicine, University of Pretoria, Pretoria, South Africa; Department of Nuclear Medicine and Radiology, University of Ghent, Ghent, Belgium
| | - Ekaterina Dadachova
- Department of Nuclear Medicine, University of Pretoria, Pretoria, South Africa; Department of Radiology, Albert Einstein College of Medicine, Bronx, NY
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Abstract
HIV-infected patients are known to be at risk for premature coronary artery disease. This emerging paradigm is a rising concern for clinicians. Due to advances in the treatment of HIV, this once fatal infection has been transformed into a chronic illness. Traditional risk factors paired with the long-term use of antiretroviral therapy (ART) and chronic inflammation leads to premature atherosclerosis, particularly progression of atherosclerotic plaque. This population of patients requires early recognition of subclinical atherosclerosis, as well aggressive primary and secondary prevention strategies among the multi-disciplinary team of physicians caring for them. We sought to present a comprehensive review of the available literature related to HIV and atherosclerosis and cardiovascular risk.
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145
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Bittencourt MS, Peixoto D. Atherosclerosis in HIV patients: a different disease or more of the same? Atherosclerosis 2015; 240:333-4. [PMID: 25875384 DOI: 10.1016/j.atherosclerosis.2015.03.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 03/26/2015] [Indexed: 12/01/2022]
Affiliation(s)
- Márcio Sommer Bittencourt
- Division of Internal Medicine, University Hospital and State of São Paulo Cancer Institute (ICESP), University of São Paulo, São Paulo, Brazil.
| | - Driele Peixoto
- Department of Infectious Disease, Hospital das Clínicas, University of São Paulo, São Paulo, Brazil
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Plaque burden in HIV-infected patients is associated with serum intestinal microbiota-generated trimethylamine. AIDS 2015; 29:443-52. [PMID: 25565500 DOI: 10.1097/qad.0000000000000565] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
OBJECTIVE Some intestinal microbiota-generated metabolites of phosphatidylcholine are recognized to be proatherogenic. As the HIV population is vulnerable to cardiovascular disease and can develop intestinal dysbiosis associated with systemic inflammation, we investigated the novel relationship between microbiota-derived metabolites of phosphatidylcholine and coronary atherosclerosis in HIV. DESIGN/METHODS One hundred and fifty-five HIV-infected and 67 non-HIV-infected individuals without known history of cardiovascular disease were previously recruited to assess coronary plaque by computed tomography angiography. In the current study, we evaluate whether serum choline, trimethylamine (TMA), or trimethylamine-N-oxide (TMAO) levels are associated with plaque features. RESULTS Young, asymptomatic HIV-infected patients (age 47 ± 7 years) demonstrated significantly higher prevalence of plaque (53 vs. 35%, P = 0.01) and number of total plaque segments (1.8 ± 2.5 vs. 1.2 ± 2.2, P = 0.03) when compared with well matched noninfected individuals with similar comorbidities. TMA was significantly associated with calcium score (r = 0.22, P = 0.006), number of total (r = 0.20, P = 0.02) and calcified (r = 0.18, P = 0.03) plaque segments, and calcium plaque volume (r = 0.19, P = 0.02) and mass (r = 0.22, P = 0.009) in the HIV cohort only. In multivariate modeling among HIV-infected patients, TMA remained significantly associated with calcium score (P = 0.008), number of total (P = 0.005) and calcified (P = 0.02) plaque segments, and calcium plaque volume (P = 0.01) and mass (P = 0.007), independent of Framingham risk score. In contrast, there was no association of TMAO to coronary plaque features in either cohort. CONCLUSION A link between TMA and atherosclerosis has not previously been established. The current study suggests that TMA may be a nontraditional risk factor related to the number of plaque segments and severity of calcified plaque burden in HIV.
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147
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Rajasuriar R, Kong YY, Nadarajah R, Abdullah NK, Spelman T, Yuhana MY, Ponampalavanar S, Kamarulzaman A, Lewin SR. The CD14 C-260T single nucleotide polymorphism (SNP) modulates monocyte/macrophage activation in treated HIV-infected individuals. J Transl Med 2015; 13:30. [PMID: 25622527 PMCID: PMC4311493 DOI: 10.1186/s12967-015-0391-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Accepted: 01/13/2015] [Indexed: 01/25/2023] Open
Abstract
Background HIV-infected individuals have an increased risk of cardiovascular disease (CVD). T-allele carriers of the CD14 C-260T single-nucleotide polymorphism (SNP) have reported increased expression of the LPS-binding receptor, CD14 and inflammation in the general population. Our aim was to explore the relationship of this SNP with monocyte/macrophage activation and inflammation and its association with sub-clinical atherosclerosis in HIV-infected individuals. Methods Patients with no pre-existing CVD risk factors on suppressive antiretroviral therapy were recruited from University Malaya Medical Centre, Malaysia (n = 84). The CD14 C-260T and TLR4 SNPs, Asp299Gly and Thr399Ile were genotyped and soluble(s) CD14 and sCD163 and high-sensitivity C-reactive protein, hsCRP were measured in plasma. Subclinical atherosclerosis was assessed by measuring carotid intima media thickness (cIMT). The association between CD14 C-260T SNP carriage and cIMT was assessed in a multivariable quantile regression model where a p-value of <0.05 was considered significant. Results We found the CD14 C-260T T-allele in 56% of the cohort and evidence of subclinical atherosclerosis in 27%. TT genotype was associated with higher sCD163 (p = 0.009) but only marginally higher sCD14 (p = 0.209) and no difference in hsCRP (p = 0.296) compared to CC/CT. In multivariable analysis, only Framingham risk score was independently associated with higher cIMT while lower sCD163 was trending towards significance. No association was found in TT-genotype carriers and cIMT measurements. Conclusion The CD14 C-260T SNP was associated with increased monocyte activation but not systemic inflammation or cIMT in this HIV-infected cohort with low CVD risk profile.
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Affiliation(s)
- Reena Rajasuriar
- Department of Pharmacy, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia. .,Centre of Excellence for Research in AIDS (CERiA), University of Malaya, 50603, Kuala Lumpur, Malaysia. .,Department of Infectious Diseases, Monash University and Alfred Hospital, 3004, Melbourne, Australia.
| | - Yong Yean Kong
- Centre of Excellence for Research in AIDS (CERiA), University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Reshika Nadarajah
- Centre of Excellence for Research in AIDS (CERiA), University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Noor Kamila Abdullah
- Centre of Excellence for Research in AIDS (CERiA), University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Tim Spelman
- Centre for Population Health, Burnet Institute, 3004, Melbourne, Australia.
| | - Muhamad Yazli Yuhana
- Department of Medicine, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia. .,Faculty of Medicine, University Teknologi MARA, 47000, Sungai Buloh, Selangor, Malaysia.
| | - Sasheela Ponampalavanar
- Centre of Excellence for Research in AIDS (CERiA), University of Malaya, 50603, Kuala Lumpur, Malaysia. .,Department of Medicine, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Adeeba Kamarulzaman
- Centre of Excellence for Research in AIDS (CERiA), University of Malaya, 50603, Kuala Lumpur, Malaysia. .,Department of Medicine, Faculty of Medicine, University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Sharon R Lewin
- Department of Infectious Diseases, Monash University and Alfred Hospital, 3004, Melbourne, Australia. .,Centre for Biomedical Research, Burnet Institute, 3004, Melbourne, Australia. .,Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, 3010, Australia.
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148
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Soluble CD163 is associated with shortened telomere length in HIV-infected patients. J Acquir Immune Defic Syndr 2015; 67:414-418. [PMID: 25197827 DOI: 10.1097/qai.0000000000000329] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Telomere length (TL) and immune activation markers were measured in a cohort of HIV-infected (n = 102) and age-matched non-HIV-infected (n = 41) men. TL was significantly shorter in HIV-infected compared with non-HIV-infected subjects (P = 0.04). Univariate analysis revealed a strong inverse relationship of TL to sCD163, and thus, monocyte/macrophage activation, among the HIV group (ρ = -0.30, P = 0.003). In multivariate modeling among the whole group, HIV-positive serostatus (P = 0.06) and sCD163 (P = 0.05) remained predictors of TL controlling for age and smoking status. Our data demonstrate that increased immune activation relates to shorter TL in HIV.
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149
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Li JZ, Arnold KB, Lo J, Dugast AS, Plants J, Ribaudo HJ, Cesa K, Heisey A, Kuritzkes DR, Lauffenburger DA, Alter G, Landay A, Grinspoon S, Pereyra F. Differential levels of soluble inflammatory markers by human immunodeficiency virus controller status and demographics. Open Forum Infect Dis 2015; 2:ofu117. [PMID: 25884005 PMCID: PMC4396431 DOI: 10.1093/ofid/ofu117] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Accepted: 12/10/2014] [Indexed: 11/29/2022] Open
Abstract
Background. Human immunodeficiency virus (HIV)-1 elite controllers (ECs) represent an ideal population to study the effects of HIV persistence on chronic inflammation in the absence of antiretroviral therapy (ART). Methods. Twenty inflammatory markers measured in cohorts of ECs, HIV suppressed noncontrollers, and HIV-uninfected controls were compared using rank-based tests and partial least squares discriminant analysis (PLSDA). Spearman correlations were determined among the inflammatory markers, residual viremia by the single-copy assay, and CD4+ T cell slope. Results. Significant differences were seen between cohorts in 15 of the soluble inflammatory markers. Human immunodeficiency virus-1 ECs were found to have the highest levels for all of the markers with the exception of RANTES. In particular, median levels of 7 inflammatory markers (soluble CD14 [sCD14], interferon [IFN]-γ, IFN-γ-inducible protein [IP]-10, interleukin [IL]-4, IL-10, sCD40L, and granulocyte-macrophage colony-stimulating factor) were twice as high in the HIV-1 ECs compared with either of the HIV-suppressed or uninfected groups. Multivariate PLSDA analysis of inflammatory markers improved differentiation between the patient cohorts, discerning gender differences in inflammatory profile amongst individuals on suppressive ART. Soluble markers of inflammation in ECs were not associated with either levels of residual HIV-1 viremia or CD4+ T cell decline. Conclusions. Despite maintaining relatively low levels of viremia, HIV-1 ECs had elevated levels of a set of key inflammatory markers. Additional studies are needed to determine whether ECs may benefit from ART and to further evaluate the observed gender differences.
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Affiliation(s)
- Jonathan Z Li
- Brigham and Women's Hospital , Harvard Medical School , Cambridge, Massachusetts
| | | | - Janet Lo
- Massachusetts General Hospital , Boston
| | | | - Jill Plants
- Rush University Medical Center , Chicago, Illinois
| | | | | | - Andrea Heisey
- Brigham and Women's Hospital , Harvard Medical School , Cambridge, Massachusetts
| | - Daniel R Kuritzkes
- Brigham and Women's Hospital , Harvard Medical School , Cambridge, Massachusetts
| | | | - Galit Alter
- Ragon Institute of MGH, MIT, and Harvard , Cambridge, Massachusetts
| | - Alan Landay
- Rush University Medical Center , Chicago, Illinois
| | | | - Florencia Pereyra
- Brigham and Women's Hospital , Harvard Medical School , Cambridge, Massachusetts ; Massachusetts General Hospital , Boston
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150
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Lo J, Lu MT, Ihenachor EJ, Wei J, Looby SE, Fitch KV, Oh J, Zimmerman CO, Hwang J, Abbara S, Plutzky J, Robbins G, Tawakol A, Hoffmann U, Grinspoon SK. Effects of statin therapy on coronary artery plaque volume and high-risk plaque morphology in HIV-infected patients with subclinical atherosclerosis: a randomised, double-blind, placebo-controlled trial. Lancet HIV 2015; 2:e52-63. [PMID: 26424461 DOI: 10.1016/s2352-3018(14)00032-0] [Citation(s) in RCA: 186] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 11/26/2014] [Indexed: 01/06/2023]
Abstract
BACKGROUND HIV-infected patients have a high risk of myocardial infarction. We aimed to assess the ability of statin treatment to reduce arterial inflammation and achieve regression of coronary atherosclerosis in this population. METHODS In a randomised, double-blind, placebo-controlled trial, 40 HIV-infected participants with subclinical coronary atherosclerosis, evidence of arterial inflammation in the aorta by fluorodeoxyglucose (FDG)-PET, and LDL-cholesterol concentration of less than 3.37 mmol/L (130 mg/dL) were randomly assigned (1:1) to 1 year of treatment with atorvastatin or placebo. Randomisation was by the Massachusetts General Hospital (MGH) Clinical Research Pharmacy with a permuted-block algorithm, stratified by sex with a fixed block size of four. Study codes were available only to the MGH Research Pharmacy and not to study investigators or participants. The prespecified primary endpoint was arterial inflammation as assessed by FDG-PET of the aorta. Additional prespecified endpoints were non-calcified and calcified plaque measures and high risk plaque features assessed with coronary CT angiography and biochemical measures. Analysis was done by intention to treat with all available data and without imputation for missing data. The trial is registered with ClinicalTrials.gov, number NCT00965185. FINDINGS The study was done from Nov 13, 2009, to Jan 13, 2014. 19 patients were assigned to atorvastatin and 21 to placebo. 37 (93%) of 40 participants completed the study, with equivalent discontinuation rates in both groups. Baseline characteristics were similar between groups. After 12 months, change in FDG-PET uptake of the most diseased segment of the aorta was not different between atorvastatin and placebo, but technically adequate results comparing longitudinal changes in identical regions could be assessed in only 21 patients (atorvastatin Δ -0.03, 95% CI -0.17 to 0.12, vs placebo Δ -0.06, -0.25 to 0.13; p=0.77). Change in plaque could be assessed in all 37 people completing the study. Atorvastatin reduced non-calcified coronary plaque volume relative to placebo: median change -19.4% (IQR -39.2 to 9.3) versus 20.4% (-7.1 to 94.4; p=0.009, n=37). The number of high-risk plaques was significantly reduced in the atorvastatin group compared with the placebo group: change in number of low attenuation plaques -0.2 (95% CI -0.6 to 0.2) versus 0.4 (0.0, 0.7; p=0.03; n=37); and change in number of positively remodelled plaques -0.2 (-0.4 to 0.1) versus 0.4 (-0.1 to 0.8; p=0.04; n=37). Direct LDL-cholesterol (-1.00 mmol/L, 95% CI -1.38 to 0.61 vs 0.30 mmol/L, 0.04 to 0.55, p<0.0001) and lipoprotein-associated phospholipase A2 (-52.2 ng/mL, 95% CI -70.4 to -34.0, vs -13.3 ng/mL, -32.8 to 6.2; p=0.005; n=37) decreased significantly with atorvastatin relative to placebo. Statin therapy was well tolerated, with a low incidence of clinical adverse events. INTERPRETATION No significant effects of statin therapy on arterial inflammation of the aorta were seen as measured by FDG-PET. However, statin therapy reduced non-calcified plaque volume and high-risk coronary plaque features in HIV-infected patients. Further studies should assess whether reduction in high-risk coronary artery disease translates into effective prevention of cardiovascular events in this at-risk population. FUNDING National Institutes of Health, Harvard Clinical and Translational Science Center, National Center for Research Resources.
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Affiliation(s)
- Janet Lo
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Michael T Lu
- Cardiovascular Imaging Section, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Ezinne J Ihenachor
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Jeffrey Wei
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Sara E Looby
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Kathleen V Fitch
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Jinhee Oh
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Chloe O Zimmerman
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Janice Hwang
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Suhny Abbara
- Cardiovascular Imaging Section, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Jorge Plutzky
- Division of Cardiology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA USA
| | - Gregory Robbins
- Division of Infectious Disease, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Ahmed Tawakol
- Division of Cardiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Udo Hoffmann
- Cardiovascular Imaging Section, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Steven K Grinspoon
- Program in Nutritional Metabolism, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
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