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Schöttker B, Larsen EL, Weimann A, Henriksen T, Brenner H, Poulsen HE. Associations of urinary metabolites of oxidized DNA and RNA with the incidence of diabetes mellitus using UPLC-MS/MS and ELISA methods. Free Radic Biol Med 2022; 183:51-59. [PMID: 35307553 DOI: 10.1016/j.freeradbiomed.2022.03.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/06/2022] [Accepted: 03/11/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND To evaluate the association of urinary oxidized guanine/guanosine (OxGuo) levels with incident type 2 diabetes (T2D) among older adults. METHODS A nested case-control design was applied with 440 cases of incident T2D and 440 controls, randomly sampled from all 65-75 year-old study participants of the ESTHER study, which is a population-based German cohort study with 14 years of follow-up. Analyses of 8-hydroxy-2'-deoxyguanosine (8-oxo-dGuo; DNA oxidation product) and 8-hydroxyguanosine (8-oxo-Guo; RNA oxidation product) were measured by ultra-performance liquid chromatography tandem-mass spectrometry (UPLC-MS/MS). The sum of the two OxGuo molecule concentrations was calculated and called OxGuo-UPLC-MS/MS. The corresponding OxGuo-ELISA levels were measured by Cayman's DNA/RNA oxidative damage ELISA, which detects a mix of 8-oxo-dGuo, 8-oxo-Guo and one other OxGuo molecule. Logistic regression was applied and models were adjusted for age, sex, BMI, HbA1c, and C-reactive protein levels. RESULTS 8-oxo-dGuo and 8-oxo-Guo were highly correlated with each other (r = 0.642) and weakly correlated with OxGuo-ELISA (r = 0.22 and r = 0.14, respectively). OxGuo-ELISA levels were statistically significant associated with T2D incidence (odds ratio (OR) and 95% confidence interval [95%CI] for comparison of top and bottom quartile: 1.77 [1.14; 2.76]). In contrast, the ORs did not increase stepwise from quartile 2 to 4 for neither 8-oxo-Guo, 8-oxo-dGuo levels nor OxGuo-UPLC-MS/MS and comparisons of top and bottom quartile were not statistically significant. In a post-hoc analysis comparing bottom quartile 1 with a combined group of quartile 2-4, the association of OxGuo-UPLC-MS/MS with T2D incidence reached statistical significance (OR [95%CI]: 0.66 [0.46; 0.96]) and was very similar with the one obtained for OxGuo-ELISA (OR [95%CI]: 0.66 [0.45; 0.95]). CONCLUSIONS Although only the measurements of the DNA/RNA oxidative damage ELISA kit of Cayman were statistically significantly associated with T2D incidence in the main analysis, confidence intervals overlapped and the post-hoc analysis showed that results for OxGuo-UPLC-MS/MS were quite comparable.
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Affiliation(s)
- Ben Schöttker
- Division of Clinical Epidemiology and Ageing Research, German Cancer Research Center, Im Neuenheimer Feld 581, 69120, Heidelberg, Germany; Network Aging Research, University of Heidelberg, Bergheimer Straße 20, 69115, Heidelberg, Germany.
| | - Emil L Larsen
- Department of Clinical Pharmacology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
| | - Allan Weimann
- Department of Clinical Pharmacology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
| | - Trine Henriksen
- Department of Clinical Pharmacology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
| | - Hermann Brenner
- Division of Clinical Epidemiology and Ageing Research, German Cancer Research Center, Im Neuenheimer Feld 581, 69120, Heidelberg, Germany; Network Aging Research, University of Heidelberg, Bergheimer Straße 20, 69115, Heidelberg, Germany
| | - Henrik E Poulsen
- Department of Endocrinology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Department of Cardiology, Copenhagen University Hospital - North Zealand, Hillerød, Denmark
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Mello LD. Potential contribution of ELISA and LFI assays to assessment of the oxidative stress condition based on 8-oxodG biomarker. Anal Biochem 2021; 628:114215. [PMID: 33957135 DOI: 10.1016/j.ab.2021.114215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 04/07/2021] [Accepted: 04/14/2021] [Indexed: 01/13/2023]
Abstract
Immunoassays have been extensively applied in the medical diagnostic field. Enzyme-Linked Immunosorbent Assay (ELISA) and Lateral Flow Immunochemical Assay (LFIA) are methods that have been well established to analysis of clinical substances such as protein, hormones, drugs, identification of antibodies and in the quantification of antigen. Over the past years, the application of these methods has been extended to assess the clinical oxidative stress condition based on monitoring of the 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) biomarker levels. The present manuscript provides an overview of the current immunoassays based on ELISA and LFIA technologies applied for a quantitative analysis of the 8-oxodG. The discussion focuses on the principles of development, improvement and analytical performance of these assays. The relationship of the molecule 8-oxodG as a clinical biomarker of the assessment of the oxidative stress condition is also discussed. Commercially available products to 8-oxodG analysis are also presented.
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Vargas-Pacherrez D, Cotrim HP, Pires L, Cunha V, Coelho V, Brites C, Daltro C. Metabolic Syndrome in HIV-patients in Antiretroviral Therapy. Curr HIV Res 2020; 18:388-395. [PMID: 32516101 DOI: 10.2174/1570162x18666200609115615] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/29/2020] [Accepted: 05/20/2020] [Indexed: 11/22/2022]
Abstract
INTRODUCTION The global prevalence of metabolic syndrome (MS) among people living with HIV/AIDS varies from 20% to 33%. OBJECTIVE to estimate the prevalence of metabolic syndrome and associated factors in a group of HIV-infected patients on antiretroviral therapy. METHODS This is a cross-sectional study with HIV-infected patients from a reference center in Bahia, Brazil. We evaluated clinical, socio-demographic and anthropometric data. MS was defined according to the guidelines of International Diabetes Federation. RESULTS We evaluated 152 patients with mean age of 47.3±11.6 years, 59.2% male. The main comorbidities detected were diabetes (3.3%) hypertriglyceridemia (9.3%) and metabolic syndrome (MS,38.2%). Patients with MS were predominantly women (55.2% vs 31.9%; p=0.005), older [52.1 (10.4) vs 44.3 (11.3); p<0.001], and had overweight (74.1% vs 23.4%; p<0.001). After multivariate analysis MS remained associated with age (OR = 1.076; 95% CI: 1.030 - 1.125), female sex (OR = 2.452; 95% CI: 1.114 - 5.374) and family history of hypertension (OR = 3.678; 95% CI: 1.431 - 9.395). CONCLUSION Almost half of the HIV-infected patients in Bahia presents with MS which seems to be driven by classical risk factors.
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Affiliation(s)
- Daniel Vargas-Pacherrez
- LAPI, Laboratório de Pesquisa em Infectologia. Complexo Hospitalar Professor Edgard Santos, Faculdade de Medicina da Bahia - Universidade Federal da Bahia (UFBA), Bahia, Brazil,Communicable Diseases and Environmental - Pan American Health Organization, Altamira - Caracas 1060, Venezuela
| | - Helma P Cotrim
- LAPI, Laboratório de Pesquisa em Infectologia. Complexo Hospitalar Professor Edgard Santos, Faculdade de Medicina da Bahia - Universidade Federal da Bahia (UFBA), Bahia, Brazil
| | - Leonardo Pires
- LAPI, Laboratório de Pesquisa em Infectologia. Complexo Hospitalar Professor Edgard Santos, Faculdade de Medicina da Bahia - Universidade Federal da Bahia (UFBA), Bahia, Brazil
| | - Vitor Cunha
- LAPI, Laboratório de Pesquisa em Infectologia. Complexo Hospitalar Professor Edgard Santos, Faculdade de Medicina da Bahia - Universidade Federal da Bahia (UFBA), Bahia, Brazil
| | - Vitor Coelho
- LAPI, Laboratório de Pesquisa em Infectologia. Complexo Hospitalar Professor Edgard Santos, Faculdade de Medicina da Bahia - Universidade Federal da Bahia (UFBA), Bahia, Brazil
| | - Carlos Brites
- LAPI, Laboratório de Pesquisa em Infectologia. Complexo Hospitalar Professor Edgard Santos, Faculdade de Medicina da Bahia - Universidade Federal da Bahia (UFBA), Bahia, Brazil,CoBraH Study Group - Universidade Federal da Bahia (UFBA), Bahia, Brazil
| | - Carla Daltro
- LAPI, Laboratório de Pesquisa em Infectologia. Complexo Hospitalar Professor Edgard Santos, Faculdade de Medicina da Bahia - Universidade Federal da Bahia (UFBA), Bahia, Brazil,Escola de Nutrição - Universidade Federal da Bahia (UFBA), Bahia, Brazil
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Bune GT, Yalew AW, Kumie A. Predictors of Metabolic Syndrome Among People Living with HIV in Gedeo-Zone, Southern-Ethiopia: A Case-Control Study. HIV AIDS-RESEARCH AND PALLIATIVE CARE 2020; 12:535-549. [PMID: 33116916 PMCID: PMC7547778 DOI: 10.2147/hiv.s275283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 09/10/2020] [Indexed: 12/29/2022]
Abstract
Background Intensive access to antiretroviral therapy improved the prognosis of HIV. As a result, a non-communicable disease risk marker known as metabolic syndrome (MS) has emerged. It is a public health issue in sub-Saharan Africa including Ethiopia. However, there is little literature on predictors of MS among people living with HIV (PLHIVs) in the study area context. Purpose To identify predictors of metabolic syndrome among PLHIVs, Gedeo Zone, Southern-Ethiopia. Methods Health institutions-based unmatched case–control study was conducted. All HIV-infected adult persons who are receiving routine care in the randomly selected two hospitals and two health centers of the Gedeo zone, southern Ethiopia were involved in the study, conducted from December 29th, 2017, to January 22nd, 2019. PLHIVs diagnosed with MS using ATP III criteria were considered as a case, and subjects free of MS in the survey were enrolled as controls. Binary logistic regression was employed to identify predictors of MS. Results A total of 633 (139 cases and 494 controls) PLHIVs were included in the study. The multivariable analysis result found that age (AOR=1.09, 95% CI (1.05–1.12)); educational status being completed secondary school (AOR=0.22, 95% CI (0.02–0.42)); occupational status being of students (AOR=0.11, 95% CI (0.24–0.51)); wealth index being in the middle quintile (AOR=0.22, 95% CI (0.06–0.79)); ART status exposed to ART (AOR=3.07, 95% CI (1.37–6.89)); total physical activity state being physically active (AOR=0.36, 95% CI (0.16–0.79)), and engaged in low levels physical activity (AOR=3.83, 95% CI (1.46–10.05)) were the factors significantly associated with MS. Conclusion While education, occupation, wealth index, antiretroviral therapy status, total physical activity, and lower physical activity levels were concluded by the study as modifiable predictors of metabolic syndrome, age was found as a non-modifiable independent risk of metabolic syndrome. There is a need for an ongoing effort to realize an integrated care plan that addresses both the routine care and regular screening programs to reduce the risks associated with MS and its traits in these subjects.
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Affiliation(s)
| | | | - Abera Kumie
- Schools of Public Health, Addis Ababa University, Addis Ababa, Ethiopia
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Kumar P, Liu C, Suliburk JW, Minard CG, Muthupillai R, Chacko S, Hsu JW, Jahoor F, Sekhar RV. Supplementing Glycine and N-acetylcysteine (GlyNAC) in Aging HIV Patients Improves Oxidative Stress, Mitochondrial Dysfunction, Inflammation, Endothelial Dysfunction, Insulin Resistance, Genotoxicity, Strength, and Cognition: Results of an Open-Label Clinical Trial. Biomedicines 2020; 8:biomedicines8100390. [PMID: 33007928 PMCID: PMC7601820 DOI: 10.3390/biomedicines8100390] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 09/27/2020] [Accepted: 09/27/2020] [Indexed: 12/18/2022] Open
Abstract
Background: Patients with HIV (PWH) develop geriatric comorbidities, including functional and cognitive decline at a younger age. However, contributing mechanisms are unclear and interventions are lacking. We hypothesized that deficiency of the antioxidant protein glutathione (GSH) contributes to multiple defects representing premature aging in PWH, and that these defects could be improved by supplementing the GSH precursors glycine and N-acetylcysteine (GlyNAC). Methods: We conducted an open label clinical trial where eight PWH and eight matched uninfected-controls were studied at baseline. PWH were studied again 12-weeks after receiving GlyNAC, and 8-weeks after stopping GlyNAC. Controls did not receive supplementation. Outcome measures included red-blood cell and muscle GSH concentrations, mitochondrial function, mitophagy and autophagy, oxidative stress, inflammation, endothelial function, genomic damage, insulin resistance, glucose production, muscle-protein breakdown rates, body composition, physical function and cognition. Results: PWH had significant defects in measured outcomes, which improved with GlyNAC supplementation. However, benefits receded after stopping GlyNAC. Conclusions: This open label trial finds that PWH have premature aging based on multiple biological and functional defects, and identifies novel mechanistic explanations for cognitive and physical decline. Nutritional supplementation with GlyNAC improves comorbidities suggestive of premature aging in PWH including functional and cognitive decline, and warrants additional investigation.
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Affiliation(s)
- Premranjan Kumar
- Translational Metabolism Unit, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA; (P.K.); (C.L.)
| | - Chun Liu
- Translational Metabolism Unit, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA; (P.K.); (C.L.)
| | - James W. Suliburk
- Department of Surgery, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA;
| | - Charles G. Minard
- Institute of Clinical and Translational Research, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA;
| | | | - Shaji Chacko
- USDA/ARS Children’s Nutrition Research Center, Baylor College of Medicine, Houston, TX 77030, USA; (S.C.); (J.W.H.); (F.J.)
| | - Jean W. Hsu
- USDA/ARS Children’s Nutrition Research Center, Baylor College of Medicine, Houston, TX 77030, USA; (S.C.); (J.W.H.); (F.J.)
| | - Farook Jahoor
- USDA/ARS Children’s Nutrition Research Center, Baylor College of Medicine, Houston, TX 77030, USA; (S.C.); (J.W.H.); (F.J.)
| | - Rajagopal V. Sekhar
- Translational Metabolism Unit, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA; (P.K.); (C.L.)
- Thomas Street HIV-Health Center, Harris Health, Houston, TX 77009, USA
- Correspondence:
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Masenga SK, Elijovich F, Koethe JR, Hamooya BM, Heimburger DC, Munsaka SM, Laffer CL, Kirabo A. Hypertension and Metabolic Syndrome in Persons with HIV. Curr Hypertens Rep 2020; 22:78. [PMID: 32880756 PMCID: PMC7467859 DOI: 10.1007/s11906-020-01089-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW With the advent of highly active antiretroviral therapy (ART), the life span of persons with HIV (PWH) has been nearly normalized. With aging, prevalence of the metabolic syndrome (MetS), including hypertension, has increased in the HIV population and exceeds that in the general population in some studies. This is due to a combination of traditional risk factors in addition to the effects attributable to the virus and ART. We review recent findings on the mechanisms contributing to MetS and hypertension in PWH, particularly those specific to the viral infection and to ART. RECENT FINDINGS Activation of the renin-angiotensin-aldosterone system (RAAS) and chronic immune activation contribute to the development of MetS and hypertension in PWH. HIV proteins and some ART agents alter adipocyte health contributing to dyslipidemias, weight gain, and insulin resistance. HIV infection also contributes to hypertension by direct effects on the RAAS that intertwine with inflammation by the RAAS also contributing to T cell activation. Recent data suggest that in addition to current ART, therapeutic targeting of the MetS and hypertension in PWH, by interfering with the RAAS, treating insulin resistance directly or by use of immunomodulators that dampen inflammation, may be critical for preventing or treating these risk factors and to improve overall cardiovascular complications in the HIV-infected aging population.
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Affiliation(s)
- Sepiso K Masenga
- HAND Research group, School of Medicine and Health Sciences, Mulungushi University, Livingstone, Zambia
- Department of Biomedical Sciences, School of Health Sciences, University of Zambia, Lusaka, Zambia
| | - Fernando Elijovich
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - John R Koethe
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Benson M Hamooya
- HAND Research group, School of Medicine and Health Sciences, Mulungushi University, Livingstone, Zambia
- School of Public Health, University of Zambia, Lusaka, Zambia
| | - Douglas C Heimburger
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Internal Medicine, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Sody M Munsaka
- Department of Biomedical Sciences, School of Health Sciences, University of Zambia, Lusaka, Zambia
| | - Cheryl L Laffer
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Annet Kirabo
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Room 536 Robinson Research Building, Nashville, TN, 37232-6602, USA.
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Gonzalez H, Podany A, Al-Harthi L, Wallace J. The far-reaching HAND of cART: cART effects on astrocytes. J Neuroimmune Pharmacol 2020; 16:144-158. [PMID: 32147775 DOI: 10.1007/s11481-020-09907-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 02/13/2020] [Indexed: 12/31/2022]
Abstract
Following the introduction of combination antiretroviral therapy (cART), the morbidity and mortality from human immunodeficiency virus (HIV) infection has been drastically curtailed and HIV has now become a chronic manageable disease. Persons living with HIV (PLWH) are living longer and experiencing significant co-morbidities and conditions of aging. NeuroHIV, clinically defined as HIV-Associated Neurocognitive Disorders (HAND) and pathologically manifested by persistent inflammation in the CNS despite cART, is a significant co-morbid condition for PLWH. In the pre-cART era, HIV mediated much of the pathogenesis in the Central Nervous System (CNS); in the cART era, with low to undetectable viremia, other mechanisms may be contributing to persistent neuroinflammation. Emerging data point to the adverse effects at the cellular level of cART, independent of HIV. Astrocytes are the most abundant cells in the CNS, playing vital roles in maintaining CNS homeostasis (e.g. metabolic support to neurons, clearance of neurotransmitters, ion balance, modulation of synaptic functions and maintaining the structural integrity of the blood brain barrier (BBB). Therefore, any disruption of their function will have wide repercussions in the CNS. In this review, we will address current knowledge and gaps on the impact of antiretrovirals (ARVs) on astrocytes and physiologic consequences in the CNS. Understanding the status of this field, will provide a practical framework to elucidate the potential role of cART-mediated dysregulation of astrocytes in neuroHIV pathogenesis and inform therapeutic strategies that are "neuro-friendly". Graphical abstract CNS-penetrating cART have the potential to cause resting astrocytes to become activated into an A1 or neurotoxic phenotype. These cells can in turn secrete inflammatory cytokines that affect surrounding microglia macrophages, as well as neurotoxic factors that impact nearby neurons. In addition, impairment in the physiologic functions of astrocytes will result in altered BBB permeability and disrupted metabolic homeostasis. CNS=Central Nervous System; cART=combined antiretroviral therapy; BBB=blood brain barrier.
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Affiliation(s)
- Hemil Gonzalez
- Department of Internal Medicine, Division of Infectious Disease, Rush University Medical Center, Chicago, IL, USA.,Department of Microbial Pathogens and Immunity, Rush University Medical Center, Chicago, IL, USA
| | - Anthony Podany
- Department of Pharmacy Practice and Science; College of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA
| | - Lena Al-Harthi
- Department of Microbial Pathogens and Immunity, Rush University Medical Center, Chicago, IL, USA
| | - Jennillee Wallace
- Department of Microbial Pathogens and Immunity, Rush University Medical Center, Chicago, IL, USA.
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