Determinants of HDL-Cholesterol and the HDL-Cholesterol/Total Cholesterol Ratio. Results of the Lübeck Blood Pressure Study

1990 ◽  
Vol 19 (3) ◽  
pp. 578-585 ◽  
Author(s):  
LLOYD CHAMBLESS ◽  
ANGELA DÖRING ◽  
BIRGIT FILIPIAK ◽  
ULRICH KEIL
2007 ◽  
Vol 64 (11) ◽  
pp. 749-752 ◽  
Author(s):  
Milica Pesic ◽  
Slobodan Antic ◽  
Radivoj Kocic ◽  
Danijela Radojkovic ◽  
Sasa Radenkovic

Background/Aims. Overt hypothyroidism is disease associated with accelerated arteriosclerosis and coronary heart disease. Whether subclinical hypothyroidism (SH) is associated with increased cardiovascular risk is contraversial. As SH is a high prevalence thyroid dysfunction, specially in older women, it is important to evaluate cardiovascular risk factors in these patients and that was the aim of this study. Methods. We examined 30 patients with SH and 20 healthy controls. Subclinical hypothireoidism was defined as an elevated thyrotropin (TSH) (> 4.5 mU/L) and normal free thyroxine (FT4) level. In all the participants we determined body mass index (BMI), blood pressure, TSH, FT4, antibodies to thyroid peroxidase, antibodies to thyroglobulin, total cholesterol, high density lipoprotein (HDL) cholesterol, low density lipoprotein (LDL) cholesterol, triglicerides, total cholesterol/HDL cholesterol ratio and LDL/HDL cholesterol ratio. Results. Mean BMI in patients with SH was significantly higher (p < 0.05), as well as diastolic blood pressure (p < 0.01) compared with the controls. Average levels of total cholesterol (5.40?0.62 vs 5.06?0.19 mmol/l, p < 0.01) and triglycerides (2.16?0.56 vs 1.89?0.24 mmol/l, p < 0.05) were also significantly higher in the group with SH. Individual analysis revealed that the percentage of patients with SH having borderline elevated total cholesterol (63.33%), hypertrigliceridemia (43.33%) and elevated total cholesterol/HDL cholesterol ratio (26.67%) were significantly higher than the percentage in the controls. No significant correlation between TSH and lipid parameters was detected. Conclusion. Subclinical hypothyroidism was associated with higher BMI, diastolic hypertension, higher total cholesterol and triglicerides levels and higher total cholesterol/HDL cholesterols ratio. This might increase the risk of accelerated arteriosclerosis in patients with SH.


2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Richard K. D. Ephraim ◽  
Patrick Adu ◽  
Edem Ake ◽  
Hope Agbodzakey ◽  
Prince Adoba ◽  
...  

Background.Abnormal lipid homeostasis in sickle cell disease (SCD) is characterized by defects in plasma and erythrocyte lipids and may increase the risk of cardiovascular disease. This study assessed the lipid profile and non-HDL cholesterol level of SCD patients.Methods.A hospital-based cross-sectional study was conducted in 50 SCD patients, in the steady state, aged 8–28 years, attending the SCD clinic, and 50 healthy volunteers between the ages of 8–38 years. Serum lipids were determined by enzymatic methods and non-HDL cholesterol calculated by this formula: non-HDL-C = TC-HDL-C.Results.Total cholesterol (TC) (p=0.001) and high-density lipoprotein cholesterol (HDL-C) (p<0.0001) were significantly decreased in cases compared to controls. The levels of non-HDL-C, low-density lipoprotein cholesterol (LDL-C), and triglyceride (TG) were similar among the participants. The levels of decrease in TC and HDL were associated with whether a patient was SCD-SS or SCD-SC. Systolic blood pressure and diastolic blood pressure were each significantly associated with increased VLDL [SBP,p=0.01, OR: 0.74 (CI: 0.6–0.93); DBP,p=0.023, OR: 1.45 (CI: 1.05–2.0)].Conclusion.Dyslipidemia is common among participants in this study. It was more pronounced in the SCD-SS than in SCD-SC. This dyslipidemia was associated with high VLDL as well as increased SBP and DBP.


Circulation ◽  
2017 ◽  
Vol 135 (suppl_1) ◽  
Author(s):  
Jung H Lee ◽  
Hyeon C Kim ◽  
Dae R Kang ◽  
Il Suh

Introduction: Several studies have examined tracking pattern of lipid profile level during long follow-up periods in Western countries. However, there have been few such studies in East Asia. Hypothesis: We assessed the hypothesis that there exists tracking pattern of lipid profile level from adolescence to adulthood, and lipid measurements in adolescence can predict adult dyslipidemia in South Korea. Methods: The Kangwha Study was a community-based prospective cohort study that started in 1986 in Kangwha County, South Korea . A total of 400 participants (54% women) whose serum total cholesterol, triglyceride, and high density lipoprotein (HDL) cholesterol level were measured at least once during adolescence (1992-1996), and repeatedly measured at least once during adulthood (2005-2015) were enrolled in our study. Body mass index, waist circumstance, and blood pressure were measured at all measurements. Family history of cardiovascular disease, smoking history, and presence of adult dyslipidemia were checked at adulthood. The tracking pattern of lipid profile level was determined by tracking coefficients (low: <0.30; moderate: 0.30-0.59; moderately high: 0.60-0.89; high: ≥0.90). The tracking coefficients were calculated by Generalized Estimating Equation. The predictability of adult dyslipidemia was assessed by multiple logistic regression and area under curve (AUC) value. Additional analyses were performed to find out whether repeated lipid measurements during adolescence can enhance the predictability of adult dyslipidemia or not. Results: The presence of adult dyslipidemia was 26.3% (105 of 400). Mean age of study participants at enrollment is 13.8 years (SD, 1.6 years), and that at adulthood is 30.1 years (SD, 3.7 years). When adjusted for age, body mass index, waist circumstance, and blood pressure, the tracking coefficient of total cholesterol was 0.59 (95% confidence interval (CI), 0.54-0.63), that of triglyceride was 0.39 (95% CI, 0.28-0.49), and that of HDL cholesterol was 0.51 (95% CI, 0.46-0.55). The AUC value of our multiple logistic regression model on adult dyslipidemia without lipid profile levels at adolescence was 0.77 (95% CI, 0.72-0.83), and that with lipid profile levels at adolescence was 0.80 (95% CI, 0.75-0.85). P value for AUC comparison was significant (p=0.02). In additional analyses, using the average lipid profile levels in multiple lipid measurements at adolescence did not significantly improve the AUC value (p>0.09). Conclusion: In conclusion, moderate tracking patterns of serum lipid profile level were shown in this study. Serum lipid profile measurements at adolescence could help the prediction of adult dyslipidemia. The results of this study supported the need of lipid profile screening at adolescence.


2004 ◽  
Vol 287 (5) ◽  
pp. F1038-F1043 ◽  
Author(s):  
N. D. Vaziri ◽  
K. Liang

Chronic renal failure (CRF) is associated with increased risk of arteriosclerotic cardiovascular disease and profound alteration of plasma lipid profile. Uremic dyslipidemia is marked by increased plasma concentration of ApoB-containing lipoproteins and impaired high-density lipoprotein (HDL)-mediated reverse cholesterol transport. These abnormalities are, in part, due to acquired LCAT deficiency and upregulation of hepatic acyl-CoA:cholesterol acyltransferase (ACAT). ACAT catalyzes intracellular esterification of cholesterol, thereby promoting hepatic production of ApoB-containing lipoproteins and constraining HDL-mediated cholesterol uptake in the peripheral tissues. In view of the above considerations, we tested the hypothesis that pharmacological inhibition of ACAT may ameliorate CRF-induced dyslipidemia. 5/6 Nephrectomized rats were treated with either ACAT inhibitor IC-976 (30 mg·kg−1·day−1) or placebo for 6 wk. Sham-operated rats served as controls. Key cholesterol-regulating enzymes, plasma lipids, and creatinine clearance were measured. The untreated CRF rats exhibited increased plasma low-density lipoprotein (LDL) and very LDL (VLDL) cholesterol, unchanged plasma HDL cholesterol, elevated total cholesterol-to-HDL cholesterol ratio, reduced liver microsomal free cholesterol, and diminished creatinine clearance. This was accompanied by reduced plasma LCAT, increased hepatic ACAT-2 mRNA, ACAT-2 protein and ACAT activity, and unchanged hepatic HMG-CoA reductase and cholesterol 7α-hydroxylase. ACAT inhibitor raised plasma HDL cholesterol, lowered LDL and VLDL cholesterol, and normalized total cholesterol-to-HDL cholesterol ratio without changing total cholesterol concentration (hence, a shift from ApoB-containing lipoproteins to HDL). This was accompanied by normalizations of hepatic ACAT activity and plasma LCAT. In conclusion, inhibition of ACAT reversed LCAT deficiency and improved plasma HDL level in CRF rats. Future studies are needed to explore the efficacy of ACAT inhibition in humans with CRF.


2018 ◽  
Author(s):  
Mahalul Azam ◽  
Sri Ratna Rahayu ◽  
Arulita Ika Fibriana ◽  
Hardhono Susanto ◽  
Martha Irene Kartasurya ◽  
...  

Total-Cholesterol(TC) to HDL-Cholesterol(HDL-C) ratio in athletes is well-known better than sedentary people. However, there is lack of information about comparison of TC/HDL-C in different groups of cyclists based on cycling touring characteristics and anthropometry parameters. This study was to compare TC/HDL-C ratio among groups based on type of tour participated in cyclists population.Eighty-eight participants were recruited in this cross-sectional study. Mean differences of parameters between groups analyzed by One-Way Anova test and independent t-test, while multivariate analyses was done by binary logistic-regression. P value &lt;0.05 was considered to statistical significance.TC/HDL-C ratio in all groups were less than 4.5. There is no differences of TC-levels (NC240K: 216.6±55.04, TdB140K: 208.1±27.13, TdB100K: 203.1±31.95; p=0.427). But there is significantly different of HDL-C (NC240K: 68.9±19.09, TdB140K: 52.1±13.9, TdB100K: 53.6±12.45; p=0.0001) and TC/HDL-C ratio (NC240K: 3.3±1.12, TdB140K: 4.2±1.07, TdB100K: 4.0±1.06; p=0.007). Based on TC/HDL ratio (≥4 or &lt;4) groups, there were differences of weight, BMI, waist-circumference, hip-circumference and type of cycling-touring (p&lt;0.05). Finally BMI and type of cycling-touring were the most-influenced factor.Long-distance cyclists have a synergistic effect of lipid profile and anthropometry measurements, and the heavier cycling touring participated that represent cycling training habits tend to have lower TC/HDL ratio(&lt; 4).


2006 ◽  
Vol 59 (1-2) ◽  
pp. 57-62
Author(s):  
Bosa Mirjanic-Azaric ◽  
Mirjana Djeric ◽  
Maja Vrhovac ◽  
Dusanka Sukalo

Introduction. The aim of this study was to estimate if negative lifestyle habits such as alcohol consumption, smoking and physical inactivity affect the lipid profile values. Material and methods. The study included 250 workers on regular examination in the Gradiska Health Center in the period from 2001 to 2002. There were 113 (45.2%) men and 137 (54.8%) women. The examinees were divided into three groups according age (25-39, 40-49 and 50-60 respectively). Standard laboratory methods were used to establish the following: total cholesterol, triglyceride and HDL-cholesterol level, LDL cholesterol, atherosclerosis index (AI) and total cholesterol/HDL cholesterol. Results Using a questionnaire, we have found out that out of 250 examinees 48.80% consume alcohol regularly, 50.80% are smokers and 36% are physically. The mean total cholesterol was high in all groups and it was 6.41 mmol/l. The mean triglyceride level was 1.88 mmol/l and mean HDL cholesterol was 1.48 mmol/l, I A was 2.99 and total cholesterol/HDL cholesterol ratio was 4.69. Statistical analysis showed that there was a statistically significant relationship between triglyceride values and alcohol consumption, smoking and physical activity (p<0.05). Also, we showed that there was a statistically high relationship between HDL cholesterol values, AJ, total cholesterol/HDL cholesterol and smoking in the examined groups (p<0.01). Discussion In our study the lipid profile parameters were above the desired levels, probably due to unhealthy lifestyle, including smoking, alcohol consumption and insufficient physical activity. Our results are in concordance with the results of similar studies. Conclusion It is of utmost importance to take steps to improve lifestyle habits of our population.


2008 ◽  
Vol 6 (2) ◽  
pp. 45-51
Author(s):  
MARIA PRISKILA ◽  
DIAN ARININGRUM ◽  
ENDANG LISTYANINGSIH SUPARYANTI

Priskila M, Ariningrum D, Suparyanti ES. 2008. Effect of garlic (Allium sativum Linn.) extract on reduction of total cholesterol and HDL cholesterol ratio in hypercholesterolemic rats (Rattus norvegicus). Biofarmasi 6: 45-51. Garlic has been widely recognized as herbal medicine for prevention and treatment of cardiovascular disease, atherosclerosis, and hyperlipidemia. The main bioactive compound, allicin, can influence cholesterol metabolism, reduce total cholesterol and increase HDL cholesterol. The purpose of this research was to find out the effect of garlic extract on the reduction of total cholesterol and HDL cholesterol ratio in hypercholesterolemic rats. This research was an experimental research with pre and post-test control group design. The research used male Wistar rats (Rattus norvegicus) with ±3 mounts old and ±200 grams of body weight. The rats were divided into two groups, group I and II; each group consisted of 15 rats. Before the treatment, all rats were induced by a high-cholesterol diet for two weeks, to get a hypercholesterolemic condition. Group I, as a control group, were induced by a high-cholesterol diet, while group II, treatment group, were also induced by a high-cholesterol diet orally by 0.432 grams garlic extract /200 grams body weight/day. The treatment occurred for 25 days. The data were taken before the treatment and after the last treatment, by taking the blood from orbital sine of rats which been fasted for 12 hours, and the level of serum cholesterol total and the level of serum HDL cholesterol were checked from both groups, then the results were analyzed with t-test. Based on the results, it could be concluded that the oral induction of 0.432 grams garlic extract /200 grams body weight/day for 25 days on rats, could not reduce total cholesterol, therefore the serum total cholesterol and HDL cholesterol ratio was not significant (p>0.05). Meanwhile, the decrease of total cholesterol in treatment group and the decrease of HDL cholesterol in both groups were significant (p<0.05).


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