Density Lipoprotein Cholesterol Research Articles

Impact of sub-acute exposure to nuvan on serum lipoproteins of catfish, Clarias batrachus and their potential effects indirectly on human health

Pesticides are frequently applied in agricultural land, public health programs, and maintenance of trees or plants and also used as preservatives for different food materials for a long time. But these pesticides cause a lot of negative health and environmental impacts which affects the sustainability of an ecosystem. Among the different pesticides organophosphorus pesticide mostly used in agricultural purposes to prevent the disease causing agents like insects, pests, parasite due to its less persistence in our environment. Synthetic pesticide like Nuvan accumulations in the tissues of animals produce cyto-toxicity and have severed health issues due to its persistent nature. When these pesticides intake by aquatic animals specially fishes, they can interfere with the food chain. When such contaminated fishes eaten by someone they can destroy multiple systems in the body of human and other livings. Changes in blood biochemical indices gives signs what is happening in body of animals after exposure of pesticides. Most edible and commercially valuable freshwater fish Clarias batrachus was used in this work for analyzed the hazardous nature of toxic pesticide nuvan on some biochemical parameters. When fish exposed to two sub-lethal levels of nuvan (0.0137 ml/L and 0.0274 ml/L) for 60 days showed that the pesticide induces changes in blood parameters. The results showed very highly significant (p<0.001) increase in Low- density lipoprotein-cholesterol (LDL) and highly significant (p<0.01) increase in Very low- density lipoprotein-cholesterol (VLDL) while very highly significant (p<0.001) reduction in high density lipoprotein- cholesterol (HDL) were noted in treated groups compared with the control. This study implicates that adverse effect on lipoproteins due to synthetic pesticides have a negative health effect as cardiovascular risk status. Research of environmental pollution and its adverse effects on human and other animals including fish is remarkable which can leads the sustainability of our environment.

Proprotein convertase subtilisin/kexin type 9-inhibition across different patient populations.

Monoclonal antibodies (mAb) targeting proprotein convertase subtilisin/kexin type 9 (PCSK9) have been established in cardiovascular risk prevention. The purpose of this review is to summarize the effects of PCSK9 inhibitors across different patient populations. Long-term data on the use of evolocumab and alirocumab shows persisting low- density lipoprotein cholesterol (LDL-C) lowering and good tolerability. PCSK9 inhibitors are effective and safe in both sexes, in pediatric patients as well as in the elderly. Initiation of PCSK9 mAb during acute myocardial infarction is safe and leads to beneficial morphological plaque changes. The PCSK9 inhibitors evolocumab, alirocumab and inclisiran lower LDL-C in patients with heterozygous familial hypercholesterolemia (FH), while the response of patients with homozygous FH is heterogeneous. New areas of application beyond lipid lowering are currently investigated. PCSK9 inhibitors are safe, well tolerated, and effective in primary and secondary prevention in a wide range of patient populations.

A Computational Approach on Fenofibrate Drug Using Degree-Based Topological Indices and M-polynomials

Fenofibrate is a drug approved by FDA Food and Drugs Administration used to treat patients with Hypertrigly ceridemia primary hypercholesterolemia or mixed dyslipidemia. It reduces low-density lipoprotein cholesterol (LDL-c), total cholesterol, triglycerides, and apolipoprotein B and increases high -density lipoprotein cholesterol (HDL-C) in adults. The sum and multiplicative versions of several topological indices such as General Zagreb, General Randic, Arithmetic Geometric Index, Inverse sum (Indeg) Index, Symmetric Division (Deg) Index, Forgotten Indices M-polynomials of Fenofibrate are computed in this article.

Predictive cut-off values for the triglyceride-to-high-density lipoprotein cholesterol ratio to predict metabolic syndrome in the middle-aged Korean population

Background and aimsThe triglyceride-to-high density lipoprotein cholesterol (TG/HDL) ratio is associated with insulin resistance related diseases, including metabolic syndrome (MetS). However, specific TG/HDL values that can predict MetS have not been well identified. In this study, we analyzed both cross-sectional and longitudinal data from two national Korean datasets to obtain TG/HDL cut-off values that can identify MetS and predict its occurrence. Methods and resultsTo distinguish the presence and occurrence of MetS, the cut-off values were determined using the maximum F-score calculated through a logistic regression analysis. To predict new-onset MetS within 10 years, Cox proportional hazard models were used to consider the time of occurrence. The TG/HDL cut-off values of 3.97, 3.24, and 3.24 were optimal for identifying current MetS and predicting new-onset MetS within 10 years and five years, respectively, in Korean men. In Korean women, the optimal values for each task were 3.18, 2.38, and 2.26, respectively. ConclusionsWe suggest the TG/HDL ratio as a potential candidate predictor for MetS. Therefore, we anticipate that future studies will apply individual lipid levels as well as their combinatory values to establish models that predict the prevalence and occurrence of MetS, diabetes, and cardiovascular disease.

Oxidative DNA Damage and Deranged Lipid Profile in Patients with Pulmonary Tuberculosis: A Cross-sectional Study

Introduction: Tuberculosis (TB) is one of the major health problems and a leading cause of death from infectious diseases. Oxidative damage in tuberculosis results from biochemical interactions between Reactive Oxygen Species (ROS) and target biomolecules. Increased oxidative stress leads to elevated Oxidative Deoxyribonucleic Acid (DNA) damage in Pulmonary Tuberculosis (PTB) patients. It is important to study serum lipids and oxidative DNA damage as they affect the overall immune system of individuals. Aim: To investigate deranged lipid profiles and oxidative DNA damage in PTB. Materials and Methods: A single-centered, cross-sectional study was conducted at Grant Government Medical College, Mumbai from October 2016 to November 2017. A total of 50 PTB patients in the age group of 20-60 years and 50 healthy subjects were included in the study. Oxidative DNA damage was assessed using 8-hydroxy-2-deoxyguanosine (8-OHdG) as a biomarker with a highly sensitive Enzyme-linked Immunosorbent Assay (ELISA) kit, and lipid profiles were estimated. An Unpaired t-test was used to analyse the significance of the study parameters in the cases and control groups. Results: The study involved 100 participants, predominantly males (63%), with most falling in the age group of 18-45 years (77%). The present study revealed significantly elevated levels (p-value <0.05) of 8-OHdG in patients; however, significantly reduced levels (p-value <0.05) of total cholesterol, Triglycerides (TG), High-density Lipoprotein cholesterol (HDL), Very Low- density Lipoprotein cholesterol (VLDL), and Low-density Lipoprotein cholesterol (LDL) were observed in cases compared to controls. Conclusion: The present study observed an increase in the level of 8-hydroxy-2-deoxyguanosine (8-OHdG), indicating greater oxidative DNA damage in tuberculosis patients due to oxidative stress, leading to lipid profile derangement.

The value of Lp(a) and TG/HDLC in peripheral blood to assess the stability of carotid plaque in patients with ischemic stroke.

The objective of this study was to investigate the relationship between lipoprotein (a) (Lp(a)), triglyceride/high-density lipoprotein cholesterol (TG/HDL-C), and the stability of carotid atherosclerotic plaque in patients with acute ischemic stroke. A total of 142 patients with acute ischemic stroke were selected and divided into group A (59 cases of stable plaque formation) and group B (83 cases of unstable plaque formation) according to the characteristics of carotid artery plaque formation detected by carotid color Doppler ultrasound. The serum Lp(a), lipid metabolism indexes, peripheral blood routine indexes, and related serum inflammatory factors indexes were compared between the two groups. Receiver operating characteristic curve and multivariate logistic regression model were used to analyze the relationship between each index and the formation of carotid unstable plaque. There were no significant differences in serum total cholesterol (TC), HDL-C, and low-density lipoprotein cholesterol (LDL-C) between groups A and B (p > .05). The values of Lp(a), TG, and TG/HDL-C in group B were higher than those in group A, and the differences were statistically significant (p < .05). There were no significant differences in serum TC, HDL-C, and LDL-C between groups A and B (p > .05). The values of Lp(a), TG, and TG/HDL-C in group B were higher than those in group A, and the differences were statistically significant (p < .05). The values of HBA1C, Lp-PLA2, CRP, CysC, Hcy, TNF-α, neutrophils, and NLR in group B were higher than those in group A, and the differences were statistically significant (p < .05). There was no significant difference in FPG, systolic blood pressure, diastolic blood pressure, Hb, white blood cells, platelets, and lymphocytes between groups A and B (p > .05). The results of logistic regression model showed that the increase of Lp(a), TG/HDL-C, HBA1C, Lp-PLA2, CRP, CysC, Hcy, and NLR could increase the risk of carotid artery unstable plaque in patients with ischemic stroke (p < .05). Lp(a) and TG/HDL-C have certain value in evaluating the stability of carotid atherosclerotic plaque in patients with acute ischemic stroke, and the increased levels of LP (a) and TG/HDL-C will significantly increase the risk of carotid unstable plaque in patients.

PATHOGENESIS OF IMMUNE DYSFUNCTION IN THE SETTING OF METABOLIK SYNDROME IN CORONARY HEAT DISEASE. QUALIFYING SCENTIFYING WORK ON THE RIGHTS OF THE MANUSCRIPT

PATHOGENESIS OF IMMUNE DYSFUNCTION IN THE SETTING OF METABOLIK SYNDROME IN CORONARY HEAT DISEASE. QUALIFYING SCENTIFYING WORK ON THE RIGHTS OF THE MANUSCRIPT

Potential Therapeutic Effects of Tali Bamboo Leaf Tea (Gigantochloa apus) on Lipid Profile of Rats With Metabolic Syndrome

This study aimed to determine the potential of Tali bamboo leaf tea (Gigantochloa apus) on the lipid profile of metabolic syndrome rats. This study is an laboratory-based experimental study using 30 male Wistar rats with metabolic syndrom aged 8 weeks and weighed 150–250 g, that were divided into 5 groups namely negative control (K-), positive control (K+), and three intervention groups with intervention doses of bamboo leaf tea at 300, 600, and 900 mg/200 g BW for 28 days. The results showed that there were significant differences (p&lt;0.05) in High- Density Lipoprotein Cholesterol (HDL-C) and Low-Density Lipoprotein Cholesterol (LDL-C) levels before and after intervention. Tali bamboo leaf tea has the potential to improve the lipid profile of rats with metabolic syndrome (p&lt;0.001).

Особливості ліпідного та вуглеводного обмінів у пацієнтів з гастроезофагеальною рефлюксною хворобою на тлі цукрового діабету 2-го типу залежно від наявності ожиріння

Особливості ліпідного та вуглеводного обмінів у пацієнтів з гастроезофагеальною рефлюксною хворобою на тлі цукрового діабету 2-го типу залежно від наявності ожиріння

Association of remnant cholesterol and newly diagnosed early-onset type 2 diabetes mellitus in Chinese population: A retrospective cross-sectional study.

With the increasing incidence of diabetes worldwide, patients diagnosed with diabetes has been getting younger. Previous studies have shown that high remnant cholesterol (RC) level leads to an increased risk of cardiovascular disease events. However, the relationship between RC levels and newly diagnosed early-onset type 2 diabetes mellitus (T2DM) is unknown. This study aimed to explore the association between RC and newly diagnosed early-onset T2DM. A total of 606 patients newly diagnosed with early-onset T2DM and 619 gender-matched subjects with normal blood glucose levels were retrospectively enrolled in this study. All T2DM patients showed onset age of 18-40 years. Binary logistic regression analysis was performed to analyze independent risk factors and receiver operating characteristic (ROC) analysis was used to explore the predictive value of RC and other unconventional lipids. Moreover, the correlation between RC and insulin resistance in patients with newly diagnosed early-onset T2DM was also examined with binary logistic regression analysis and Spearman correlation analysis. Increased RC level was an independent risk factor for early-onset T2DM (p < .05). The area under the curve on ROC analysis of RC was 0.805, 95% confidence interval (CI) was 0.781 ~ 0.826, sensitivity was 82.18% and specificity was 66.24%, which showed higher predictive value than those of triglyceride/high-density lipoprotein cholesterol (TG/HDL-C) ratio and total cholesterol (TC)/HDL-C ratio. Cutoff value of RC was 0.32 mmol/L. Level of RC in early-onset T2DM patients with moderate or severe insulin resistance was significantly higher than that in patients with mild insulin resistance (p < .0001). No difference in RC levels was found between patients with moderate and severe insulin resistance (p > .05). RC was still correlated with insulin resistance after adjusting the conventional lipid parameters (TG, TC, HDL-C, and low-density lipoprotein cholesterol) using partial correlation analysis. RC level was higher in patients with early-onset T2DM and was correlated to the degree of insulin resistance as well. Patients aged 18-40 years with RC >0.32 mmol/L showed an increased risk of developing T2DM.

Abstract 187: Nontraditional Lipid Indices and Intracranial Atherosclerotic Stenosis Burden

Introduction Expert consensus guidelines recommend low‐density lipoprotein cholesterol (LDL‐C) as the primary serum lipid target for recurrent stroke risk reduction. Nontraditional lipid variables including triglycerides/high‐density lipoprotein cholesterol (HDL‐C) ratio and total cholesterol/HDL‐C ratio are linked to a vascular risk as a residual risk factor. Since intracranial atherosclerotic stenosis (ICAS)‐related stroke is prevalent in Asian population, we evaluated the relationship between lipid indices and ICAS burden. Methods We analyzed consecutively enrolled 1220 patients with acute ischemic stroke from March 2009 to May February 2013, who underwent brain MRI and MRA. ICAS was defined as &gt;/=50% stenosis and quantified by presence, &gt;/=2, and &gt;/=3. Study patients were divided into four groups according to level of nontraditional lipid variables: triglycerides/HDL‐C, total cholesterol/HDL‐C ratio, and low‐density lipoprotein cholesterol (LDL‐C)/HDL‐C ratio, and non‐HDL‐C. Independent associations of 4 lipid variables with ICAS were assessed. Results Table shows multivariable adjusted odds of ICAS by Increasing strata of each lipid indices. Compared with the lowest triglycerides/HDL‐C quartile, stepwise relationships were observed between increasing quartiles and the presence of ICAS (adjusted OR 1.04, 95% CI 0.68–1.58; 1.06, 0.69–1.62; and 1.80, 1.17–2.77), ICAS &gt;/=2 (1.32, 0.83–2.09; 1.32, 0.82–2.11; and 1.72, 1.07–2.74), and ICAS &gt;/=3 (2.49, 1.32–4.69; 2.98, 1.58–5.63; and 3.18, 1.67–6.04). Compared with the lowest total cholesterol/HDL‐C ratio, stepwise relationships were observed with ICAS &gt;/=2 (1.51, 0.90–2.54; 1.56, 0.90–2.68; and 2.03, 1.00–3.74), and ICAS &gt;/=3 (1.67, 0.84–3.33; 2.22, 1.10–4.51; and 2.63, 1.20–5.77). Relationships between LDL‐C/HDL‐C ratio and ICAS burden showed similar pattern to findings from total cholesterol/HDL‐C. Association between non‐HDL‐C and ICAS was not significant. Conclusion Among four lipid indices, elevated triglycerides/HDL‐C is more likely associated with ICAS burden. HDL‐C might exert as a crucial role for developing ICAS.

Evaluation of oxidative stress biomarkers together with myeloperoxidase/paraoxonase-1 and myeloperoxidase/high density lipoprotein cholesterol in ST-elevation myocardial infarction

Abstract Objectives Oxidative stress is closely associated with atherosclerosis and acute coronary syndromes. The purpose of this study was to evaluate well-known and proportional oxidative stress biomarkers in ST-Elevation Myocardial Infarction (STEMI) patients. Methods In this single center, prospective and cross-sectional study, 107 individuals (63 patients) were studied. Total oxidative status (TOS), total antioxidant status (TAS), oxidative stress index (OSI), ischemia modified albumin (IMA), myeloperoxidase (MPO), paraoxonase-1 (PON-1) and arylesterase (AREase) enzyme activities as well as MPO/PON-1, MPO/AREase and MPO/HDL-C ratios were studied. As short-term in-hospital prognosis biomarkers; in-hospital mortality, early systolic dysfunction and spontaneous complete revascularization were investigated. Results Our results indicated that TOS, OSI, IMA, MPO, MPO/PON-1 and MPO/HDL ratios were significantly higher, PON-1 and AREase were significantly lower in STEMI patients compared to the control group. However, in the regression analysis performed by adjusting the differences between the groups, only IMA was found as an independent risk factor (OR=2.711, 95 % CI=1.094–6.719, p=0.031). In terms of in-hospital short-term prognostic biomarkers, a significant relationship was found only between OSI and spontaneous complete revascularization. The OSI value was higher in the group with TIMI grade 3 flow than in the group with TIMI grade 0–2 flow (2.42 [0.81–4.49] vs. 1.63 [0.33–6.07], p=0.016). Conclusions In STEMI patients, both the well-known (TOS, OSI, and MPO) and proportional (MPO/PON-1 and MPO/HDL cholesterol ratios) oxidative stress markers were elevated and can be considered as having a role in the pathogenesis of STEMI.

Possibilities of transition of the strategy from glucosecentricity to organoprotection when prescribing antidiabetic drugs in patients with type 2 diabetes mellitus in the perimenapause

Obesity, type 2 diabetes mellitus and cardiovascular diseases associated with these conditions remain one of the largest global health problems. According to statistics, at least 90 % of patients with type 2 diabetes mellitus are obese or at least overweight (BMI &gt; 25). Very often, the cause of death in this cohort of patients is the development of a cardiovascular catastrophe. Currently, there is a gradual rejection of the exclusively glucose-centric concept of type 2 diabetes mellitus therapy in favor of an organoprotective one. In this article, we examined the possibility of using various groups of incretinomimetics (DPP-4 inhibitors and GLP-1 agonists) in the primary prevention of cardiovascular diseases in patients with type 2 diabetes mellitus in perimenopause, and comparing their effects with traditional metformin therapy.The aim of the study was to evaluate the effect of non – insulin antidiabetic drugs from the class of incretinomimetics on risk factors for the development of cardiovascular diseases in patients with type 2 diabetes mellitus in perimenopause.Object and methods. A dynamic examination of three groups of patients was carried out. The first group (n = 22) received therapy with the GLP-1 agonist semaglutide, the second group (n = 30) metformin therapy and the third (n = 19) with the DPP-4 inhibitor linagliptin. All patients, in addition to general clinical examination, assessment of the dynamics of weight loss and insulin resistance, underwent a dynamic study of triglyceride levels, low – density lipoprotein cholesterol, as well as markers of general inflammation – C-reactive protein and interleukin-6.Results. The results of the study showed that semaglutide and metformin were equally effective in reducing body weight, but metformin and linagliptin did not significantly affect the level of atherogenic fractions of the lipidogram, unlike semaglutide. Nevertheless, both semaglutide, linagliptin, and metformin reduced the level of markers of general inflammation.Conclusions. The results of the study allow us to discern a certain cardioprotective potential not only in agonists of GLP-1, but also in representatives of the class of DPP-4 inhibitors, which requires further research.

Effects of acute exposure to chlorfenapyr on hepatic enzyme activities and serum lipid profile of African catfish, Clarias gariepinus (Burchell 1822)

The effects of acute exposure to chlorfenapyr on hepatic enzymes and lipid profile of Clarias gariepinus juveniles were investigated following standard protocols. Test organisms were exposed to chlorfenapyr concentrations of 5, 7, 9, 11 and 15 mgL-1 for 96 hr exposure period. After exposure, peripheral blood was collected through the caudal vein into plain sterilised tubes and allowed stand for 1 h for clot to form. The clotted blood was then centrifuged at 3000 rpm for 10 min and the serum obtained was used for all the biochemical assay. Cross-sections of the gills were examined for histological aberrations. Results showed significant increase in enzymatic activities of Aspartate amino transferases (AST), Alanine amino transferases (ALT) and Alkaline phosphatase (ALP) (p&lt; 0.05) when compared with control. Lipid profile results showed significant (p&lt;0.05) increase in Total cholesterol (TC) and Low- density lipoprotein-cholesterol (LDL-cholesterol) in all treated groups when compared with the control. Significant (p&lt;0.05) reduction in high density lipoprotein- cholesterol (HDL-cholesterol) and triacylglycerides in all treated groups compared to the control was also recorded. Such alterations in biochemical parameters did not show any relationship with gills histology as the cross-section of the gills provided no evidence of aberrations. The results suggest that exposure to acute concentrations of chlorfenapyr can alter liver enzyme activities and serum lipid profile initiating a jump in the energy requirement of the exposed organism.

DYSLIPIDEMIA AND HYPERGLYCEMIA IN HYPERTENSIVE PATIENTS ASSOCIATE WITH GNB3 (RS5443) AND NOS3 (RS2070744) GENES’ ALLELIC STATE

Objective: More than 700 million people worldwide live with untreated essential arterial hypertension (EAH). The objective of the study was to evaluate the risks of metabolic disorders in EAH patients depending on guanine nucleotide-binding protein-↓3 subunit (GNB3, rs5443) and endothelial nitric oxide synthase (NOS3, rs2070744) genes’ allelic state. Design and method: The cohort case-control study involved 100 EAH patients (moderate-very high cardiovascular risks, aged 45-65 years) and 48 practically healthy (control). Metabolic disorders were evaluated by glucose blood value and lipids panel: total cholesterol (TC), triglycerides (TG), Low-, and High- density lipoprotein cholesterol (LDL-C, HDL-C) levels. The atherogenic index (AI) was calculated by the equation: (TC-HDL-C)/HDL-C. GNB3 (rs5443) and NOS3 (rs2070744) genotyping perfrmed by TaqMan probes in CFX96 Real-Time PCR Detection System. Results: Hyperglycemia (&gt;6.1 mmol/l), hypertriglyceridemia (TG&gt;1.7 mmol/l) and decreased HDL-C (&lt;1.2 mmol/l) were relatively more common in EAH patients than in the control group by 36.11% (⇙2 = 17.88; p&lt;0.001), 23.61% (⇙2 = 6.43; p = 0.011) and 25.0% (⇙2 = 8.32; p = 0.004) respectively. Therefore, the fasting hyperglycemia increases the EAH risk in the examined population ninefold [OR95%CI:2.86-27.08; p&lt;0.001], hypertriglyceridemia and decreased HDL-C elevates the risk almost 3 and 3.5 times as well [OR95%CI:1.23-5.56; p = 0.009 and OR95%CI:1.46-8.71; p = 0.003], respectively. The risk of metabolic disorders (dyslipidemia and hyperglycemia) in EAH patients does not depend on NOS3 gene polymorphism (rs2070744). Contrary, in T-allele patients of the GNB3 gene (rs5443) prevailed subjects with elevated LDL-C (&gt;3.0 mmol/l) over those with CC-genotype by 13.89% (p = 0.05). Other parameters of lipid metabolism and hyperglycemia did not differ significantly between GNB3 (rs5443) genes allelic state. However, the mutational T-allele of the GNB3 gene (825C&gt;T) increases the risk of hyperlipidemia 8.5 times [OR 95%CI:0.99-72.70; p = 0.05] due to atherogenic LDL-C, with the protective role of CC-genotype [OR = 0.12; OR 95%CI:0.01-1.0; p = 0.048]. Conclusions: Fasting hyperglycemia, hypertriglyceridemia and lowered HDL-C, enhance the arterial hypertension risk 3-9 times (p&lt;0.01). The polymorphic site of GNB3 (rs5443) gene, but not NOS3 (rs2070744) gene associate with hyperlipidemia in hypertensive patients.

Total-, LDL-, and HDL-cholesterol, apolipoproteins, and triglycerides with risk of total and fatal prostate cancer in Black and White men in the ARIC study.

Cholesterol reduction is considered a mechanism through which cholesterol-lowering drugs including statins are associated with a reduced aggressive prostate cancer risk. While prior cohort studies found positive associations between total cholesterol and more advanced stage and grade in White men, whether associations for total cholesterol, low (LDL)- and high (HDL)-density lipoprotein cholesterol, apolipoprotein B (LDL particle) and A1 (HDL particle), and triglycerides are similar for fatal prostate cancer and in Black men, who experience a disproportionate burden of total and fatal prostate cancer, is unknown. We conducted a prospective study of 1553 Black and 5071 White cancer-free men attending visit 1 (1987-1989) of the Atherosclerosis Risk in Communities Study. A total of 885 incident prostate cancer cases were ascertained through 2015, and 128 prostate cancer deaths through 2018. We estimated multivariable-adjusted hazard ratios (HRs) of total and fatal prostate cancer per 1-standard deviation increments and for tertiles (T1-T3) of time-updated lipid biomarkers overall and in Black and White men. Greater total cholesterol concentration (HR per-1 SD = 1.25; 95% CI = 1.00-1.58) and LDL cholesterol (HR per-1 SD = 1.26; 95% CI = 0.99-1.60) were associated with higher fatal prostate cancer risk in White men only. Apolipoprotein B was nonlinearly associated with fatal prostate cancer overall (T2 vs. T1: HR = 1.66; 95% CI = 1.05-2.64) and in Black men (HR = 3.59; 95% CI = 1.53-8.40) but not White men (HR = 1.13; 95% CI = 0.65-1.97). Tests for interaction by race were not statistically significant. These findings may improve the understanding of lipid metabolism in prostate carcinogenesis by disease aggressiveness, and by race while emphasizing the importance of cholesterol control.

The link between vitamin D, chemerin and metabolic profile in overweight and obese children - preliminary results.

Vitamin D affects adipogenesis, oxidative stress, inflammation, secretion of adipocytokines, lipid metabolism and thermogenesis. Some researchers postulate that those effects could be exerted by the influence of vitamin D on chemerin levels. We aimed to investigate if there is a link between serum 25-hydroksyvitamin D [25(OH)D], chemerin and metabolic profile in overweight and obese children before and after vitamin D supplementation. The prospective study included 65 overweight and obese children aged 9.08-17.5 years and 26 peers as a control. None of the patients in the study group had received vitamin D within the last twelve months before the study. The study group had lower baseline 25(OH)D (p<0.001) and higher chemerin (p<0.001), triglycerides (TG, p<0.001), triglycerides/high density lipoprotein cholesterol (TG/HDL-C, p<0.001), C-reactive protein (CRP, p<0.05), fasting insulin (p<0.001), Homeostasis Model Assessment - Insulin Resistance (HOMA-IR, p<0.001), alanine aminotransferase (ALT, p<0.001) and uric acid (p<0.001) compared to the control group. Baseline vitamin D was related to fasting insulin (R=-0.29, p=0.021), HOMA-IR (R=-0.30, p=0.016), HDL-C (R=0.29, p=0.020) and uric acid (R=-0.28, p=0.037) in the study group. Baseline chemerin was related to insulin at 30' (R=0.27, p=0.030), 60' (R=0.27, p=0.033), 90' (R=0.26, p=0.037) and 120' (R=0.26, p=0.040) during the oral glucose tolerance test (OGTT) and ALT (R=0.25, p=0.041) in the study group. Correlation between vitamin D and chemerin (R=-0.39, p=0.046) was found only in the control group. After six months of vitamin D supplementation a decrease in CRP (p<0.01), total cholesterol (p<0.05), ALT (p<0.01), glucose at 150' OGTT (p<0.05) was observed. Moreover, we noticed a tendency for negative association between 25(OH)D and chemerin levels (p=0.085). Multivariable backward linear regression models were build using baseline vitamin D, baseline chemerin and six months chemerin as the dependent variables. Our study confirmed that vitamin D has positive effect on metabolic profile in overweight and obese children. The relationship between vitamin D and chemerin is not clear, nevertheless we have observed a tendency to decrease chemerin concentrations after improving vitamin D status, even without a significant reduction in body fat mass.

Different Factors Associated with Morning Blood Pressure Surge in Antihypertensive-Naïve Dipper and Non-Dipper Subjects

The relationship between the morning blood pressure surge (MBPS) and cardiovascular risk is inconclusive. Previous studies have not taken into consideration dipping status in examining the MBPS and its associated factors. The aim was to examine factors associated with the MBPS in dippers and non-dippers. The MBPS was calculated by data obtained from ambulatory blood pressure monitoring, using the definition of sleep-trough morning surge. Dipping systolic blood pressure (DipSBP) was defined as [1 - (SBPsleeping/SBPawake)] × 100%. The value in milliseconds of standard deviation of normal-to-normal RR interval after waking up (SDNNaw) was calculated during the 2 h period after waking up. A total of 140 eligible subjects were divided into dippers (n = 62) and non-dippers (n = 78). Multiple regression analysis on data for all subjects revealed different correlations with the MBPS: positive in age, body mass index (BMI), and DipSBP, and inverse in cholesterol/high density lipoprotein-cholesterol (HDL-C) ratio, fasting blood glucose, and 2 h SDNNaw. When dippers were examined separately, age, female gender, and BMI correlated positively with MBPS, while cholesterol/HDL-C ratio and 2 h SDNNaw correlated negatively. For non-dippers, only age was associated with the MBPS. The factors associated with the MBPS were different for dippers and non-dippers. The MBPS seems to be a physiological response in this dipper group because age and BMI correlated positively with the MBPS, while parasympathetic neural activity after waking up and cholesterol/HDL-C ratio showed inverse correlations.

S-17-4: EFFECTIVENESS OF STATIN INTENSIVE THERAPY IN TYPE 2 DIABETES WITH HIGH VISIT-TO-VISIT BLOOD PRESSURE VARIABILITY

Objective: Intensive lipid-lowering therapy is recommended in type 2 diabetes mellitus (T2DM) patients with target organ damage. However, evidence is insufficient to stratify the patients who will benefit from the intensive therapy among them. High visit-to-visit variability in systolic blood pressure (SBP) is associated with increased risk of cardiovascular events. Thus, we hypothesized that the benefit of intensive lipid-lowering therapy is larger in T2DM patients with high visit-to-visit SBP variability who are considered at higher risk. This study aimed to investigate the effectiveness of intensive versus standard statin therapy in primary prevention of cardiovascular events among T2DM patients with retinopathy stratified by visit-to-visit SBP variability. Design and method: The EMPATHY study was the first randomized trial comparing statin intensive therapy targeting low- density lipoprotein cholesterol (LDL-C) &lt; 70 mg/dL and standard therapy targeting LDLC ®100 to &lt; 120 mg/dL in T2DM patients with retinopathy without known cardiovascular disease. Using this dataset, we divided the patients into two subpopulations based on standard deviation (SD) and average real variability (ARV) of clinic SBP within initial 6 months. The outcome was the composite incidence of cardiovascular events, including cardiac, cerebral, renal, and vascular events or death associated with cardiovascular events. Results: In a total of 4899 patients, 240 composite cardiovascular events were observed during a median follow-up of 37.3 months. The number of blood pressure measurements was 6.6 ± 1.6. The median value of SD and ARV of SBP was 9.78 mmHg and 10.29 mmHg, respectively. These median values were used as cutoffs. In multivariable-adjusted model comparing intensive versus standard therapy, the hazard ratios for composite cardiovascular events were 0.64 (95% CI 0.45–0.90, p = 0.012) and 1.21 (95% CI 0.82–1.80, p = 0.34) in patients with high and low SBP variability as defined by SD, respectively. Interaction between SBP variability and statin therapy was significant (p = 0.018). The analysis using ARV of SBP showed similar results (high ARV: hazard ratio 0.62, 95% CI 0.44–0.88, p = 0.008; low ARV: hazard ratio 1.15, 95% CI 0.78–1.70, p = 0.48; p for interaction = 0.022.). Conclusion: Statin intensive therapy targeting LDL-C &lt; 70 mg/dL had benefits in primary prevention of cardiovascular events compared with standard therapy among T2DM patients with retinopathy having high, but not low, visit to visit SBP variability. Stratification based on visit-to-visit SBP variability might be a novel and useful strategy to determine the target LDL-C levels in statin lipid-lowering therapy among T2DM patients with microvascular complications.

Serum Lipoprotein Ratios as Markers for Insulin Resistance Among Non-Diabetic Acute Coronary Syndrome Patients with Impaired Fasting Glucose

Background: Insulin resistance is a major risk factor in the development of cardiovascular diseases and type 2 diabetes mellitus. Some studies concluded that serum lipoproteins levels and hence lipoprotein ratios were altered in patients with insulin resistance. Objective: To identify the possibility of using lipoprotein ratios as markers for insulin resistance. Methods: A cross sectional study conducted in Baghdad (Medical City) and in Maysan (Al Shaheed Al Sadir Teaching Hospital) from February to December 2020. Eighty-three male and 51 female in Coronary Care Unit and Internal Medicine Wards patients were selected in the study group. Results: Lipoprotein ratios were significantly higher in individuals with homeostatic model assessment for insulin resistance (HOMA-IR) ≥2.5 as compared to subjects with HOMA-IR &lt;2.5. There was a statistically significant association between lipoprotein ratios and insulin resistance when HOMA-IR ≥2.5 (P less than 0.05). Fasting insulin correlated significantly with lipoprotein ratios. Conclusion: Serum lipoprotein ratios and the best one is triglyceride/high density lipoprotein cholesterol could be used as markers for insulin resistance. Keywords: Lipoprotein ratios, insulin resistance, diabetes Citation: Issa EF, Rasheed MK. Serum lipoprotein ratios as markers for insulin resistance among non-diabetic acute coronary syndrome patients with impaired fasting glucose. Iraqi JMS. 2022; 20(2): 239-244. doi: 10.22578/IJMS.20.2.11