scholarly journals Associations of gamma-glutamyl transferase with cardio-metabolic diseases in people living with HIV infection in South Africa

PLoS ONE ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. e0246131
Author(s):  
Kim A. Nguyen ◽  
Nasheeta Peer ◽  
Andre P. Kengne
Keyword(s):  
Plasma Glucose ◽  
Metabolic Diseases ◽  
Density Lipoprotein ◽  
Lipoprotein Cholesterol ◽  
People Living With Hiv ◽  
Gamma Glutamyl Transferase ◽  
Regression Analyses ◽  
Cvd Risk ◽  
Glutamyl Transferase ◽  
Living With Hiv

Background Gamma-glutamyl transferase (GGT) has recently been reported as a biomarker for cardiovascular (CVD) risk in general populations. We investigated the associations of GGT with cardio-metabolic diseases and CVD risk in South Africans living with HIV. Methods In this cross-sectional study, HIV-infected adults were randomly recruited across 17 HIV clinics in the Western Cape Province. Homeostatic model assessment for insulin resistance (HOMA-IR), hypertension, diabetes, metabolic syndrome by Joint Interim Statement criteria (JIS-MS), a ≥5% and ≥10% predicted risk for a CVD event within 10 years by the Framingham risk score (10-years-CVD risk) were computed. Associations between GGT and cardio-metabolic trait were explored using linear and binomial logistic regressions adjusted for age, gender, lifestyle behaviours and HIV-related characteristics. Results Among 709 participants (561 women, mean age 38.6 years), log-GGT was positively associated with waist circumference (β=2.75; p<0.001), diastolic blood pressure (β=1.65; p=0.006), total cholesterol (β=0.21; p<0.001), low-density lipoprotein-cholesterol (β=0.16; p<0.001), high-density lipoprotein-cholesterol and log-triglycerides (both β=0.12; p<0.001), fasting plasma glucose (β=0.19; p=0.031), 2-hour-post-glucose-load plasma glucose (β=0.26; p=0.007), HOMA-IR (β=0.13; p=0.001), log-high-sensitivity C-reactive-protein (β=0.3; p<0.001) in linear regression analyses; with hypertension [OR=1.41 (95%CI, 1.13-1.75); p=0.001], JIS-MS [OR=1.33 (1.05-1.68); p=0.016], ≥5% 10-year-CVD risk [OR=1.55 (1.24-1.9400); p<0.001] and ≥10% 10-year-CVD risk [OR=1.56 (1.08-2.23); p=0.016] but not with diabetes [OR=1.24 (0.88-1.71), p=0.205] in logistic regression analyses. Conclusions In this study, GGT levels were associated with cardio-metabolic variables independent of HIV specific attributes. If confirmed in longitudinal studies, GGT evaluation maybe included in CVD risk monitoring strategies in people living with HIV.

scholarly journals Lifetime duration of lactation and chronic inflammation among middle-aged women with a history of gestational diabetes

2020 ◽  
Vol 8 (2) ◽  
pp. e001229
Author(s):  
Sylvia H Ley ◽  
Jorge E Chavarro ◽  
Stefanie N Hinkle ◽  
Mengying Li ◽  
Michael Y Tsai ◽  
...  
Keyword(s):  
Gestational Diabetes ◽  
Chronic Inflammation ◽  
Density Lipoprotein ◽  
Lipoprotein Cholesterol ◽  
Health Study ◽  
Gamma Glutamyl Transferase ◽  
Middle Aged ◽  
History Of ◽  
Glutamyl Transferase

IntroductionLonger duration of lactation is associated with lower cardiometabolic disease risk, but pathogenic pathways involved in the disease progression are unclear, especially among high-risk women. We aimed to examine the associations of lifetime lactation duration with cardiometabolic biomarkers among middle-aged women with a history of gestational diabetes (GDM).Research design and methodsWomen with a history of GDM participating in the Nurses’ Health Study II, a prospective cohort study, were identified and followed through biennial questionnaires beginning in 1991. Lactation history was asked in three follow-up questionnaires to calculate lifetime duration. In 2012–2014, fasting blood samples were collected through the Diabetes & Women’s Health Study to measure inflammatory (C-reactive protein (CRP), interleukin (IL) 6), liver enzyme (alanine aminotransferase, aspartate aminotransferase, and gamma-glutamyl transferase), and lipid biomarkers (total cholesterol, low-density lipoprotein cholesterol, and high-density lipoprotein cholesterol).ResultsAt follow-up blood collection, women were at median age 58.2 (95% CI 51 to 65) years and 26.3 (95% CI 15.7 to 34.1) years since GDM index pregnancy. After multiple adjustment including prepregnancy body mass index (BMI), longer duration of lactation was significantly associated with lower CRP (least squares (LS) mean 1.90 mg/L (95% CI 1.47 to 2.45) for 0-month lactation, 1.98 mg/L (95% CI 1.68 to 2.32) for up to 12-month lactation, 1.67 mg/L (95% CI 1.42 to 1.97) for 12–24 month lactation, and 1.39 mg/L (95% CI 1.19 to 1.62) for >24-month lactation; p trend=0.003) and IL-6 (1.25 pg/L (95% CI 0.94 to 1.68), 1.19 pg/L (95% CI 0.99 to 1.42), 1.04 pg/L (95% CI 0.87 to 1.25), and 0.93 pg/L (95% CI 0.78 to 1.11); p trend=0.04). Longer duration of lactation was associated with lower risk for chronic inflammation using CRP 3 mg/L cut-off in middle-aged women (OR 0.81 (95% CI 0.69 to 0.940 per 1-year increase) with multiple adjustment.ConclusionsLonger lifetime duration of lactation was associated with favorable inflammatory biomarker concentrations in middle-aged women with a history of GDM. Chronic inflammatory pathways may be responsible for previously reported associations between lactation and long-term risk for cardiometabolic diseases.

scholarly journals GAMMA-GLUTAMYL TRANSFERASE AS AN INDICATOR OF OBESITY: A CROSS-SECTIONAL STUDY

2016 ◽  
Vol 9 (9) ◽  
pp. 240
Author(s):  
Vinodhini V M ◽  
Sudhan Kb
Keyword(s):  
Insulin Resistance ◽  
Density Lipoprotein ◽  
Lipoprotein Cholesterol ◽  
Hepatic Insulin Resistance ◽  
Control Group ◽  
Gamma Glutamyl Transferase ◽  
Gamma Glutamyl ◽  
Elevated Liver Enzymes ◽  
The Mean ◽  
Glutamyl Transferase

ABSTRACTObjective: Obesity, characterized by an increase in excessive fat accumulation, represents a social problem worldwide and has been recognizedas a major underlying factor in the pathogenesis of several diseases. Gamma-glutamyl transferase (GGT) is a cell-surface protein contributing tothe extracellular catabolism of glutathione. Elevated GGT is strongly associated with obesity and excess deposition of fat in the liver, termed nonalcoholicfatty liver disease, which is thought to cause hepatic insulin resistance and contribute to the development of systemic insulin resistanceand hyperinsulinemia. Therefore, we have investigated the serum GGT levels in obese individuals and the correlation of serum GGT with bodymass index (BMI) and waist circumference.Methods: The study was carried out in 100 obese patients and 100 non-obese individuals.Results: Patients with obesity showed a significant increase in GGT levels when compared to the control group. The mean levels of BMI, WC, totalcholesterol, triglycerides, low-density lipoprotein-cholesterol (LDL-c), very LDL-cholesterol, total protein, and aspartate aminotransferase werefound to be significantly elevated in the obese individuals compared to controls. The mean levels of high-density lipoprotein-cholesterol showed asignificant decrease in the obese participants.Conclusion: Elevated liver enzymes, although in normal ranges, especially at upper quartiles as observed in our study, may play a central role inearly diagnosis of fat overflow to the liver. The findings of our study suggest that serum GGT levels may be a simple and reliable marker of visceral fataccumulation.Keywords: Diabetes mellitus, Gamma-glutamyl transferase, Insulin resistance, Metabolic syndrome, Obesity.

scholarly journals Liver Profile of Atazanavir/Ritonavir in Pregnant Albino Rats

2019 ◽  
Vol 8 (2) ◽  
pp. 47-52
Author(s):  
Elias Adikwu ◽  
James Kemelayefa ◽  
Winifred Ocheiga
Keyword(s):  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Lipoprotein Cholesterol ◽  
Albino Rats ◽  
Gamma Glutamyl Transferase ◽  
Pregnant Rats ◽  
Control Serum ◽  
Dose Dependent Fashion ◽  
Glutamyl Transferase ◽  
Dose Dependent

Medication use during pregnancy is challenging due to the occurrence of maternal or fetal toxicities. Atazanavir/ritonavir (ATV/r) has hepatotoxic potential hence; use in pregnant patients living with human immunodeficiency virus may cause maternal hepatotoxicity. This study assessed the liver profile of ATV/r in pregnant albino rats. Thirty pregnant albino rats randomized into groups were orally treated daily with ATV/r (4.28/1.43 mg/kg-34.3/11.4 mg/kg) for 16 days. After treatment, the rats were weighed and sacrificed. Blood samples were collected and examined for serum biochemical parameters. Liver samples were weighed and assessed for biochemical and histological changes. Body and liver weights were normal (p>0.05) in ATV/r-treated pregnant rats when compared to control. Serum total cholesterol, triglyceride, low density lipoprotein cholesterol and blood glucose levels were significantly (p<0.01) elevated whereas high density lipoprotein cholesterol level was significantly (p<0.01) decreased in rats treated with ATV/r (34.3/11.4 mg/kg) when compared to control. Liver and serum aminotransferases, alkaline phosphatase, gamma-glutamyl transferase, lactate dehydrogenase, total bilirubin, and conjugated bilirubin levels were significantly increased in a dose-dependent fashion in rats treated with ATV/r; 8.57/2.86 mg/kg (p<0.05), 17.1/5.72 mg/kg (p<0.01) and 34.3/11.4 mg/kg (p<0.001) when compared to control. Liver superoxide dismutase, catalase, glutathione and glutathione peroxidase levels were significantly decreased whereas malondialdehyde levels were significantly increased in a dose-dependent fashion in rats treated with ATV/r; 8.57/2.86 mg/kg (p<0.05), 17.1/5.72 mg/kg (p<0.01) and 34.3/11.4 mg/kg (p<0.001) when compared to control. Necrotic hepatocytes were observed at higher doses of ATV/r. ATV/r may not be hepatotoxic in pregnant women living with HIV at the clinical dose.

scholarly journals Attenuating Effect ofGinkgo bilobaLeaves Extract on Liver Fibrosis Induced by Thioacetamide in Mice

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Atef M. Al-Attar
Keyword(s):  
Liver Fibrosis ◽  
Total Protein ◽  
Chemical Constituents ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Liver Parenchyma ◽  
Lipoprotein Cholesterol ◽  
Gamma Glutamyl Transferase ◽  
Biochemical Alterations ◽  
Glutamyl Transferase

The purpose of this study is to investigate the effect ofGinkgo bilobaleaves extract on experimental liver fibrosis induced by thioacetamide (TAA) in male albino mice. The experimental mice were divided into four groups. The mice of the first group were served as control. The experimental animals of the second group were given 150 mg/kg body weight of TAA by intraperitoneal injection, twice weekly, for 9 weeks. The mice of the third group were exposed to TAA and supplemented withG. bilobaleaves extract. The animals of the fourth group were supplemented withG. bilobaleaves extract. The levels of plasma alanine aminotransferase, aspartate aminotransferase, gamma-glutamyl transferase, alkaline phosphatase, triglycerides, cholesterol, and low-density lipoprotein cholesterol were statistically increased while the levels of plasma total protein, albumin, glucose, and high-density lipoprotein cholesterol were significantly decreased. The levels of liver superoxide dismutase, glutathione, glycogen and total protein were notably declined, whereas the level of total lipid was increased in mice of the second group. Furthermore, microscopic examination of liver sections from mice treated with TAA showed an abnormal morphology characterized by nodular transformations in liver parenchyma which surrounded by fibrous septa. Administration ofG. bilobaleaves extract reduced extent and development of fibrous septa, liver cells change, and biochemical alterations in mice exposed to TAA. This study showed thatG. bilobaleaves extract has a potential activity against TAA-induced liver fibrosis and suggested that the chemical constituents ofG. bilobaare effective in modulation of oxidative stress induced by TAA.

Imaging modalities for cardiovascular phenotyping in asymptomatic people living with HIV

2021 ◽  
pp. 1358863X2097870
Author(s):  
Maria Bonou ◽  
Chris J Kapelios ◽  
Eleni Athanasiadi ◽  
Sophie I Mavrogeni ◽  
Mina Psichogiou ◽  
...  
Keyword(s):  
Cardiac Computed Tomography ◽  
Imaging Modalities ◽  
People Living With Hiv ◽  
Cvd Risk ◽  
Improve Risk Stratification ◽  
Positron Emission ◽  
Pet Ct ◽  
Living With Hiv ◽  
Subclinical Cvd ◽  
Related Mortality

Cardiovascular disease (CVD) has emerged as a leading cause of non-HIV-related mortality among people living with HIV (PLWH). Despite the growing CVD burden in PLWH, there is concern that general population risk score models may underestimate CVD risk in these patients. Imaging modalities have received mounting attention lately to better understand the pathophysiology of subclinical CVD and provide improved risk assessment in this population. To date, traditional and well-established techniques such as echocardiography, pulse wave velocity, and carotid intima thickness continue to be the basis for the diagnosis and subsequent monitoring of vascular atherosclerosis and heart failure. Furthermore, novel imaging tools such as cardiac computed tomography (CT) and cardiac CT angiography (CCTA), positron emission tomography/CT (PET/CT), and cardiac magnetic resonance (CMR) have provided new insights into accelerated cardiovascular abnormalities in PLWH and are currently evaluated with regards to their potential to improve risk stratification.

scholarly journals Acute Stress-Induced Blood Lipid Reactivity in Hypertensive and Normotensive Men and Prospective Associations with Future Cardiovascular Risk

2021 ◽  
Vol 10 (15) ◽  
pp. 3400
Author(s):  
Cathy Degroote ◽  
Roland von Känel ◽  
Livia Thomas ◽  
Claudia Zuccarella-Hackl ◽  
Jens C. Pruessner ◽  
...  
Keyword(s):  
Essential Hypertension ◽  
Cardiovascular Risk ◽  
Stress Reactivity ◽  
Density Lipoprotein ◽  
Blood Lipid ◽  
Lipoprotein Cholesterol ◽  
Cvd Risk ◽  
P Values ◽  
D Dimer

Hyperreactivity to stress may be one explanation for the increased risk of cardiovascular disease (CVD) in individuals with essential hypertension. We investigated blood lipid reactivity to the Montreal Imaging Stress Task (MIST), a psychosocial stressor, in hypertensive and normotensive men and tested for prospective associations with biological risk factors. Fifty-six otherwise healthy and medication-free hypertensive and normotensive men underwent the MIST. We repeatedly measured cortisol and blood lipid profiles (total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and triglycerides (TG)) immediately before and up to 1 h after stress. Lipid levels were corrected for stress hemoconcentration. Thirty-five participants completed follow-up assessment 2.9 ± 0.12 (SEM) years later. CVD risk was assessed by prospective changes in TC/HDL-C ratio, IL-6, D-dimer, and HbA1c from baseline to follow-up. The MIST induced significant changes in all parameters except TC (p-values ≤ 0.043). Compared with normotensives, hypertensives had higher TC/HDL-C-ratio and TG (p-values ≤ 0.049) stress responses. Blood lipid stress reactivity predicted future cardiovascular risk (p = 0.036) with increases in HbA1c (ß = 0.34, p = 0.046), IL-6 (ß = 0.31, p = 0.075), and D-dimer (ß = 0.33, p = 0.050). Our results suggest that the greater blood lipid reactivity to psychosocial stress in hypertensives, the greater their future biological CVD risk. This points to lipid stress reactivity as a potential mechanism through which stress might increase CVD risk in essential hypertension.

Effectiveness of the Complete Health Improvement Program in a Geriatric Population

2021 ◽  
pp. 155982762110493
Author(s):  
Emily Scriven ◽  
Bhakti Chavan ◽  
David Drozek
Keyword(s):  
Risk Factors ◽  
Lifestyle Modification ◽  
Density Lipoprotein ◽  
The Elderly ◽  
Lipoprotein Cholesterol ◽  
Health Improvement ◽  
Cvd Risk ◽  
Improvement Program ◽  
Geriatric Population ◽  
Complete Health

The Complete Health Improvement Program (CHIP) is an intensive therapeutic lifestyle modification program (ITLMP) with well-documented success in decreasing risk factors for cardiovascular disease (CVD). Plant-based diets and physical activity are components of the program that contribute to these improvements. Yet, there are few studies on how ITLMPs affect risk factors specifically for the geriatric population. The goal of this study was to examine results of CHIP participants with a focus on the older (greater than 65 years) population in Athens, Ohio. Retrospective data from 2011 to 2017 were analyzed for 26 CHIP classes. Recorded variables included body mass index (BMI), blood pressure (BP), total cholesterol (TC), triglycerides, low-density lipoprotein cholesterol (LDL), high-density lipoprotein cholesterol (HDL), blood glucose (BG), and exercise level. Among geriatric participants, significant changes were found in BMI, BP, TC, LDL, HDL, BG, and exercise level ( P < .001). As compared to the younger population, changes in variables were equivalent in the geriatric population in all variables ( P > .05). These improvements in CVD risk factors among the elderly support the hypothesis that CHIP should be considered for CVD prevention and treatment in the geriatric population.

scholarly journals Effects of Canagliflozin on Fatty Liver Indexes in Patients with Type 2 Diabetes: A Meta-analysis of Randomized Controlled Trials

2018 ◽  
Vol 21 ◽  
pp. 222-235 ◽  
Author(s):  
Boyu Li ◽  
Ying Wang ◽  
Zhikang Ye ◽  
Hui Yang ◽  
Xiangli Cui ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Fatty Liver ◽  
Randomized Controlled Trials ◽  
Meta Analysis ◽  
Density Lipoprotein ◽  
Lipoprotein Cholesterol ◽  
Controlled Trials ◽  
Randomized Controlled ◽  
Glutamyl Transferase

PURPOSE: Non-alcoholic fatty liver disease (NAFLD) affects about 75% of patients with type 2 diabetes mellitus (T2DM). We conducted a meta-analysis to determine the effect of canagliflozin on fatty liver indexes in T2DM patients. METHODS: A literature search of PubMed, Embase and Cochrane was conducted up to March 30, 2017. The liver function test and lipid profile were extracted from randomized controlled trials (RCTs) to evaluate the effect of canagliflozin on fatty liver. Weighted mean differences (WMDs) or relative risks and 95% confidence intervals (CIs) were computed by using either fixed or random-effects models. Sensitivity analysis and publication bias were evaluated. RESULTS: Our results showed that canagliflozin decreased serum concentrations of  alanine amino transferase (WMD: -11.68 [95% CI: -18.95, -10.95]; P<0.001), aspartate amino transferase (WMD: -7.50 [95% CI: -10.61, -4.38]; P<0.001), gamma-glutamyl transferase (WMD: -15.17 [95% CI: -17.73, -12.61]; P<0.001), triglycerides (WMD: -0.10 [95% CI: -0.15, -0.05]; P<0.001) but increased low-density lipoprotein cholesterol (WMD: 0.1 [95% CI: 0.06, 0.13]; P<0.001), high-density lipoprotein cholesterol (WMD: 0.06 [95% CI: 0.05, 0.07]; P<0.001) at week 26 or 52. CONCLUSIONS: Our results indicated that canagliflozin may have a protective effect on fatty liver in T2DM patients. The limitation was that the liver biopsy was hard to obtain in published studies. More RCTs specified on NAFLD are needed to get further information. This article is open to POST-PUBLICATION REVIEW. Registered readers (see “For Readers”) may comment by clicking on ABSTRACT on the issue’s contents page.

scholarly journals Limited Utility of Cardiovascular Risk Scores for People Living with HIV in Malawi

2020 ◽  
Author(s):  
Chia Goh ◽  
Henry Mwandumba ◽  
Alicja Rapala ◽  
Willard Tingao ◽  
Irene Sheha ◽  
...  
Keyword(s):  
Risk Score ◽  
Low Income ◽  
Intima Media Thickness ◽  
Risk Groups ◽  
Carotid Intima Media Thickness ◽  
Endothelial Damage ◽  
Risk Scores ◽  
People Living With Hiv ◽  
Cvd Risk ◽  
Living With Hiv

HIV is associated with increased cardiovascular disease (CVD) risk. Despite the high prevalence of HIV in low income subSaharan Africa, there are few data on the assessment of CVD risk in the region. In this study, we aimed to compare the utility of existing CVD risk scores in a cohort of Malawian adults, and assess to what extent they correlate with established markers of endothelial damage: carotid intima media thickness (IMT) and pulse wave velocity (PWV). WHO/ISH, SCORE, FRS, ASCVD, QRISK2 and D:A:D scores were calculated for 279 Malawian adults presenting with HIV and low CD4. Correlation of the calculated 10year CVD risk score with IMT and PWV was assessed using Spearmans rho. The median (IQR) age of patients was 37 (31 to 43) years and 122 (44%) were female. Median (IQR) blood pressure was 120/73mmHg (108/68 to 128/80) and 88 (32%) study participants had a new diagnosis of hypertension. The FRS and QRISK2 scores included the largest number of participants in this cohort (96% and 100% respectively). D:A:D, a risk score specific for people living with HIV, identified more patients in moderate and high risk groups. Although all scores correlated well with physiological markers of endothelial damage, FRS and QRISK2 correlated most closely with both IMT [r2 0.51, p<0.0001 and r2 0.47, p<0.0001 respectively] and PWV [r2 0.47, p<0.0001 and r2 0.5, p<0.0001 respectively]. Larger cohort studies are required to adapt and validate risk prediction scores in this region, so that limited healthcare resources can be effectively targeted.

Unique Circulating MicroRNA Associations with Dysglycemia in People Living with HIV and Alcohol Use

2021 ◽  
Author(s):  
Brianna L Bourgeois ◽  
Hui-Yi Lin ◽  
Alice Y Yeh ◽  
Danielle E. Levitt ◽  
Stefany DePrato Primeaux ◽  
...  
Keyword(s):  
Alcohol Use ◽  
Tolerance Test ◽  
Oral Glucose ◽  
Circulating Microrna ◽  
People Living With Hiv ◽  
Regression Analyses ◽  
Circulating Micrornas ◽  
Altered Glucose ◽  
Function Correlation ◽  
Living With Hiv

People living with HIV (PLWH) have increased prevalence of comorbid conditions including insulin resistance and at-risk alcohol use. Circulating microRNAs (miRs) may serve as minimally invasive indicators of pathophysiological states. We aimed to identify whether alcohol modulates circulating miR associations with measures of glucose/insulin dynamics in PLWH. PLWH (N=96; 69.8% male) enrolled in the Alcohol & Metabolic Comorbidities in PLWH: Evidence-Driven Interventions (ALIVE-Ex) study were stratified into negative phosphatidylethanol (PEth<8ng/ml, N=42) and positive PEth (PEth≥8ng/ml, N=54) groups. An oral glucose tolerance test (OGTT) was administered, and total RNA was isolated from fasting plasma to determine absolute miR expression. Circulating miRs were selected based on their role in skeletal muscle (miR-133a, miR-206), pancreatic β-cell (miR-375), liver (miR-20a), and adipose tissue (miR-let-7b, miR-146a, miR-221) function. Correlation and multiple regression analyses between miR expression and adiponectin, 2h glucose, insulin, and C-peptide values were performed adjusting for BMI category, age, sex, and viral load. miR-133a was negatively associated with adiponectin (p=0.002) in the negative PEth group, and miR-20a was positively associated with 2h glucose (p=0.013) in the positive PEth group. Regression analyses combining miRs demonstrated that miR-133a (p<0.001) and miR-221 (p=0.010) together predicted adiponectin in the negative PEth group. miR-20a (p<0.001) and miR-375 (p=0.002) together predicted 2h glucose in the positive PEth group. Our results indicate that associations between miRs and measures of glucose/insulin dynamics differed between PEth groups suggesting that the pathophysiological mechanisms contributing to altered glucose homeostasis in PLWH are potentially modulated by alcohol use.

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