scholarly journals Serum Lipid Concentrations and Prevalence of Dyslipidemia in a Large Professional Population in Beijing

2005 ◽  
Vol 51 (1) ◽  
pp. 144-150 ◽  
Author(s):  
Zhiyan Li ◽  
Ruifeng Yang ◽  
Guobing Xu ◽  
Tiean Xia

Abstract Background: Lipid abnormalities are major risk factors for premature coronary artery diseases. We investigated serum lipids and the prevalence of dyslipidemia in a professional population in Beijing and compared these data with those obtained in a similar population during 1984–1986. Methods: We studied 14 963 individuals 20–90 years of age. Health status was determined by questionnaires and physical check-ups. Total cholesterol (TC), LDL-cholesterol (LDL-C), HDL-cholesterol (HDL-C), and total triglycerides (TGs) were measured. TC >5.7 mmol/L, LDL-C >3.6 mmol/L, TGs >1.7 mmol/L, and HDL-C <0.9 mmol/L were defined as abnormal. Results: Mean serum TC, LDL-C, and TG concentrations were increased compared with the values obtained in 1984–1986, with 52.7% of males and 42.9% of females having at least one abnormal lipid concentration. Hypercholesterolemia occurred in 6% of males and 2.8% of females in the younger group (20–39 years) and in 20.2% of males and 38.7% of females in the older group (>60 years). HDL-C was abnormally low in ∼7% of males and in 1.6% of females. The prevalences of hypercholesterolemia, hypertriglyceridemia, and abnormally low HDL-C, especially the presence of slight hypertriglyceridemia, were higher than in 1984–1986 in all age groups. The increase was most prominent in the middle age group (40–59 years). Conclusions: Hypercholesterolemia, hypertriglyceridemia, and abnormally low HDL-C have increased considerably over the past 20 years in professional populations in Beijing. Dietary changes and less physical activity resulting from rapid improvements in living conditions may be the causes for the increases. Enhanced preventive measures should be undertaken to modify these situations.

2020 ◽  
Vol 15 ◽  
Author(s):  
Alberto J Lorenzatti ◽  
Peter P Toth

Over the past few decades, atherogenic dyslipidaemia has become one of the most common phenotypic presentations of lipid abnormalities, being strongly and unequivocally associated with an increased risk of cardiovascular (CV) disease. Despite the excellent results achieved from statin and non-statin management of LDL cholesterol and CV events prevention, there still remains a significant residual risk, associated with the prevalence of non-LDL cholesterol lipid patterns characterised by elevated triglyceride levels, low HDL cholesterol, a preponderance of small and dense LDL particles, accumulation of remnant lipoproteins and postprandial hyperlipidaemia. These qualitative and quantitative lipid modifications are largely associated with insulin resistance, type 2 diabetes and obesity, the prevalence of which has grown to epidemic proportions throughout the world. In this review, we analyse the pathophysiology of this particular dyslipidaemia, its relationship with the development of atherosclerotic CV disease and, finally, briefly describe the therapeutic approaches, including changes in lifestyle and current pharmacological interventions to manage these lipid alterations aimed at preventing CV events.


2007 ◽  
Vol 156 (2) ◽  
pp. 181-186 ◽  
Author(s):  
Bjørn O Åsvold ◽  
Lars J Vatten ◽  
Tom I L Nilsen ◽  
Trine Bjøro

Objective: The association between TSH and serum lipids in people with no apparent thyroid disease is insufficiently understood. We have studied the association between normal thyroid function, defined as TSH within the reference range of a general population, and concentrations of serum lipids. Design: Cross-sectional, population-based study with 30 656 individuals without known thyroid disease. Methods: Using general linear models, we calculated mean concentrations of total serum cholesterol, low-density lipoprotein (LDL) cholesterol, non-high-density lipoprotein (HDL) cholesterol, HDL cholesterol and triglycerides across categories of TSH. Results: Within the reference range of TSH, there was a linear and significant (P for trend <0.001) increase in total serum cholesterol, LDL cholesterol, non-HDL cholesterol and triglycerides, and a linear decrease (P for trend <0.001) in HDL cholesterol with increasing TSH. Subgroup analyses showed statistically significant associations for all lipids in men above 50 years of age, and for triglycerides in all age groups. For women, associations were statistically significant in all age groups except for HDL cholesterol in women below 50 years of age. The associations with triglycerides and HDL cholesterol were stronger among overweight than normal weight individuals. Conclusions: Within the range of TSH that is considered clinically normal, we found that increasing level of TSH was associated with less favourable lipid concentrations. The association with serum lipids was linear across the entire reference range of TSH.


2018 ◽  
Vol 73 (4) ◽  
pp. 282-289 ◽  
Author(s):  
Xingxing Song ◽  
Weijing Wang ◽  
Zongyao Li ◽  
Dongfeng Zhang

Background: As an essential trace element, copper has been considered to play an important role in lipid metabolism. However, the associations of serum copper with lipid concentration and dyslipidemia are still controversial. Methods: We used the 2011–2014 National Health and Nutrition Examination Survey to examine the relationship between serum copper and lipid concentration among participants aged 20 years and older. Multivariate linear regression was conducted to estimate the differences in the level of total cholesterol (TC), triglyceride (TG), high density lipoprotein (HDL) cholesterol and low density lipoprotein (LDL) cholesterol. Logistic regression was conducted to examine the association between serum copper and the risk of dyslipidemia. Results: A total of 2,678 subjects were eligible for our analyses. The multivariable adjusted average differences (95% CIs) comparing the highest to the lowest copper tertile were 8.42 (1.45–15.38) mg/dL for TC, and 2.96 (0.02–5.90) mg/dL for HDL cholesterol. Compared with the lowest tertile of serum copper, participants had significantly higher risks of High-TC dyslipidemia (OR 1.46; 95% CI 1.02–2.08) in tertile 3 and High-LDL cholesterol dyslipidemia (OR 1.48; 95% CI 1.03–2.14) in tertile 2 after adjusting for covariates. In the stratified analyses, we found that the copper-dyslipidemia association was statistically significant in women and subjects younger than 45 years of age. Conclusion: High serum copper was associated with elevated serum concentrations of TC and HDL cholesterol, and was associated with increased risks of High-TC and High-LDL cholesterol dyslipidemia. However, the real association between serum copper and serum lipids should be verified in larger prospective cohort studies in ­future.


2019 ◽  
Vol 25 (30) ◽  
pp. 3266-3281 ◽  
Author(s):  
Hadis Fathizadeh ◽  
Alireza Milajerdi ◽  
Željko Reiner ◽  
Fariba Kolahdooz ◽  
Maryam Chamani ◽  
...  

Background: The findings of trials investigating the effects of L-carnitine administration on serum lipids are inconsistent. This meta-analysis of randomized controlled trials (RCTs) was performed to summarize the effects of L-carnitine intake on serum lipids in patients and healthy individuals. Methods: Two authors independently searched electronic databases including MEDLINE, EMBASE, Cochrane Library, Web of Science, PubMed and Google Scholar from 1990 until August 1, 2019, in order to find relevant RCTs. The quality of selected RCTs was evaluated using the Cochrane Collaboration risk of bias tool. Cochrane’s Q test and I-square (I2) statistic were used to determine the heterogeneity across included trials. Weight mean difference (SMD) and 95% CI between the two intervention groups were used to determine pooled effect sizes. Subgroup analyses were performed to evaluate the source of heterogeneity based on suspected variables such as, participant’s health conditions, age, dosage of L-carnitine, duration of study, sample size, and study location between primary RCTs. Results: Out of 3460 potential papers selected based on keywords search, 67 studies met the inclusion criteria and were eligible for the meta-analysis. The pooled results indicated that L-carnitine administration led to a significant decrease in triglycerides (WMD: -10.35; 95% CI: -16.43, -4.27), total cholesterol (WMD: -9.47; 95% CI: - 13.23, -5.70) and LDL-cholesterol (LDL-C) concentrations (WMD: -6.25; 95% CI: -9.30, -3.21), and a significant increase in HDL-cholesterol (HDL-C) levels (WMD: 1.39; 95% CI: 0.21, 2.57). L-carnitine supplementation did not influence VLDL-cholesterol concentrations. When we stratified studies for the predefined factors such as dosage, and age, no significant effects of the intervention on triglycerides, LDL-C, and HDL-C levels were found. Conclusion: This meta-analysis demonstrated that L-carnitine administration significantly reduced triglycerides, total cholesterol and LDL-cholesterol levels, and significantly increased HDL-cholesterol levels in the pooled analyses, but did not affect VLDL-cholesterol levels; however, these findings were not confirmed in our subgroup analyses by participant’s health conditions, age, dosage of L-carnitine, duration of study, sample size, and study location.


2001 ◽  
Vol 86 (2) ◽  
pp. 233-239 ◽  
Author(s):  
Robert Volpe ◽  
Leena Niittynen ◽  
Riitta Korpela ◽  
Cesare Sirtori ◽  
Antonello Bucci ◽  
...  

The objective of the present study was to assess the effect of consumption of a yoghurt-based drink enriched with 1–2 g plant sterols/d on serum lipids, transaminases, vitamins and hormone status in patients with primary moderate hypercholesterolaemia. Thirty patients were randomly assigned to one of two treatment groups: a low-fat low-lactose yoghurt-based drink enriched with 1 g plant sterol extracted from soyabean/dv.a low-fat low-lactose yoghurt, for a period of 4 weeks. After a 2-week wash-out period, patients were crossed over for an additional 4-week period. Second, after a 4-week wash-out period, eleven patients were treated with 2 g plant sterols/d in a second open part of the study for a period of 8 weeks. The yoghurt enriched with plant sterols significantly reduced, in a dose-dependent manner, serum total cholesterol and LDL-cholesterol levels and LDL-cholesterol:HDL-cholesterol (P<0·001), whereas no changes were observed in HDL-cholesterol and triacylglycerol levels, either in the first or the second part of the study. There were only slight, not statistically significant, differences in serum transaminase, vitamin and hormone levels. To conclude, a low-fat yoghurt-based drink moderately enriched with plant sterols may lower total cholesterol and LDL-cholesterol effectively in patients with primary moderate hypercholesterolaemia.


2018 ◽  
Vol 22 (2) ◽  
pp. 344-353
Author(s):  
Zachary J Madewell ◽  
Estela Blanco ◽  
Raquel Burrows ◽  
Betsy Lozoff ◽  
Sheila Gahagan

AbstractObjectiveThe present longitudinal study assessed whether changes in socio-economic status (SES) from infancy to adolescence were associated with plasma lipoprotein concentrations in adolescence, of which low HDL-cholesterol (HDL-C) and high LDL-cholesterol (LDL-C), TAG and total cholesterol (TC) concentrations are associated with higher cardiovascular risk.DesignSES, assessed using the modified Graffar Index, was calculated at 1, 5, 10 and 16 years. Principal components factor analysis with varimax rotation extracted two orthogonal SES factors, termed ‘environmental capital’ and ‘social capital’. Generalized linear models were used to analyse associations between environmental and social capital at 1 and 16 years and outcomes (HDL-C, LDL-C, TAG, TC) at 16 years, as well as changes in environmental and social capital from 1–5, 5–10, 10–16 and 1–16 years, and outcomes at 16 years.SettingSantiago, Chile.ParticipantsWe evaluated 665 participants from the Santiago Longitudinal Study enrolled at infancy in Fe-deficiency anaemia studies and examined every 5 years to age 16 years.ResultsSocial capital in infancy was associated with higher HDL-C in adolescence. Environmental capital in adolescence was associated with higher LDL-C and TC during adolescence. Changing environmental capital from 1–16 years was associated with higher LDL-C. Changing environmental capital from 1–5 and 1–16 years was associated with higher TC.ConclusionsImprovements in environmental capital throughout childhood were associated with less healthy LDL-C and TC concentrations in adolescence. We found no evidence of associations between changing environmental capital and HDL-C or TAG, or changing social capital and HDL-C, LDL-C, TAG or TC.


2003 ◽  
Vol 56 (11-12) ◽  
pp. 564-567 ◽  
Author(s):  
Zorica Caparevic ◽  
Dragos Stojanovic ◽  
Vesna Ilic ◽  
Gradimir Bojkovic ◽  
Mirjana Stojanovic

Introduction Sensitive thyroid-stimulating hormone (TSH) assays provide identification of many patients with subclinical hyperthyroidism resulting from excessive production or excessive replacement of thyroid hormone. Subclinical hyperthyroidism is defined by a TSH below normal (suppressed) with normal serum T3 and T4 levels. Subclinical hyperthyroidism is the goal of thyroid hormone therapy in patients with thyroid cancer, solitary thyroid nodules, multinodular or diffuse goiters, or a history of head and neck irradiation. Benefits of TSH suppression in these patients, were thought to exceed the risks of subclinical hyperthyroidism. Subclinical hyperthyroidism also occurs in patients with thyroiditis and those with autoimmune thyroid disease. Other causes of TSH suppression, such as use of glucocorticoids, severe illness and pituitary dysfunction should be excluded. Material and methods This investigation included 55 elderly patients with subclical hyperthyroidism in order to establish the type and degree of lipid abnormalities and effects of therapy with antithyroid drugs (methimazole 10 mg/day) during three months. These patients presented with no or minimal symptoms of thyroid hormone excess, but 56% of patients experienced atrial fibrillation and cardiac hypertrophy. Results Levels of serum cholesterol, LDL-cholesterol and HDL-cholesterol were decreased. We found a significant increase of serum cholesterol, LDL-cholesterol and HDL-cholesterol levels after treatment. Discussion and Conclusion Subclinical hyperthyroidism in elderly individuals is difficult to diagnose because it may present only with cardiac manifestations including atrial fibrillation and cardiac hypertrophy. There is general agreement that measurement of serum TSH is the most sensitive indicator of thyroid hormone activity in its target tissues. Patients with subclinical hyperthyroidism tend to have low serum total cholesterol, LDL-cholesterol anf HDL-cholesterol levels. These values increase after treatment. Most patients with subclinical hyperthyroidism should be treated with antithyroid drugs to prevent cardiovascular complications and bone loss, particulary among postmenopausal women.


2014 ◽  
Vol 04 (01) ◽  
pp. 009-014
Author(s):  
A. Harish Rao

Abstract: Objective: to know the glycemic and lipidaemic status in patients with acute myocardial infarction, and with the secondary objective to know the effect of age, gender, diabetes, smoking, hypertension on fasting glucose and lipid levels. Methods and materials: The 74 patients admitted for acute myocardial infarction during the study period of one year were analysed for fasting glucose values and serum levels of total cholesterol, HDL cholesterol, LDL cholesterol and triglycerides. Results: The mean serum concentrations of total cholesterol, triglycerides, HDL cholesterol and LDL cholesterol were 233.28±45.34, 139.22±41.71, 171.43±36.53 and 27.07±36.53 respectively. Mean levels of total cholesterol, HDL cholesterol, triglycerides and fasting glucose values were not affected by age, gender, BMI, hypertension and smoking. BMI >30kg/m2 was associated with increased levels of total cholesterol(p=0.013) and LDL cholesterol(p=0.014). Also increase LDL cholesterol was seen in male gender(p=0.04). The prevalence of hypercholesterolemia, hypertriglyceridemia and low HDL cholesterol was 82.4%,77% and 78% respectively. Diabetes had no effect on lipid profile. Conclusion: our study highlighted the prevalence of dyslipidemias associated with myocardial infarction but not significant impact of fasting glucose levels.


2016 ◽  
Vol 157 (19) ◽  
pp. 746-752 ◽  
Author(s):  
László Márk ◽  
Győző Dani

The incidence and the public health importance of diabetes mellitus are growing continuously. Despite the improvement observed in the latest years, the leading cause of morbidity and mortality of diabetics are cardiovascular diseases. The diagnosis of diabetes mellitus constitutes such a high risk as the known presence of vascular disease. Diabetic dyslipidaemia is characterised by high fasting and postprandial triglyceride levels, low HDL level, and slightly elevated LDL-cholesterol with domination of atherogenic small dense LDL. These are not independent components of the atherogenic dyslipidaemia, but are closely linked to each other. Beside the known harmful effects of low HDL and small dense LDL, recent findings confirmed the atherogenicity of the triglyceride-rich lipoproteins and their remnants. It has been shown that the key of this process is the overproduction and delayed clearance of triglyceride-rich lipoproteins in the liver. In this metabolism the lipoprotein lipase has a determining role; its function is accelerated by ApoA5 and attenuated by ApoC3. The null mutations of the ApoC3 results in a reduced risk of myocardial infarction, the loss-of-function mutation of ApoA5 was associated with a 60% elevation of triglyceride level and 2.2-times increased risk of myocardial infarction. In case of diabetes mellitus, insulin resistance, obesity, metabolic syndrome and chronic kidney disease the non-HDL-cholesterol is a better marker of the risk than the LDL-cholesterol. Its value can be calculated by subtraction of HDL-cholesterol from total cholesterol. Target values of non-HDL-cholesterol can be obtained by adding 0.8 mmol/L to the LDL-cholesterol targets (this means 3.3 mmol/L in high, and 2.6 mmol/L in very high risk patients). The drugs of first choice in the treatment of diabetic dyslipidaemia are statins. Nevertheless, it is known that even if statin therapy is optimal (treated to target), a considerable residual (lipid) risk remains. For its reduction treatment of low HDL-cholesterol and high triglyceride levels is obvious by the administration of fibrates. In addition to statin therapy, fenofibrate can be recommended. Orv. Hetil., 2016, 157(19), 746–752.


2019 ◽  
Vol 10 (4) ◽  
pp. 647-659 ◽  
Author(s):  
Phooi Tee Voon ◽  
Sin Tien Lee ◽  
Tony Kock Wai Ng ◽  
Yen Teng Ng ◽  
Xiou Shuang Yong ◽  
...  

ABSTRACT It is not clear whether a saturated fatty acid–rich palm olein diet has any significant adverse effect on established surrogate lipid markers of cardiovascular disease (CVD) risk. We reviewed the effect of palm olein with other oils on serum lipid in healthy adults. We searched in MEDLINE and CENTRAL: Central Register of Controlled Trials from 1975 to January 2018 for randomized controlled trials of ≥2 wk intervention that compared the effects of palm olein (the liquid fraction of palm oil) with other oils such as coconut oil, lard, canola oil, high-oleic sunflower oil, olive oil, peanut oil, and soybean oil on changes in serum lipids. Nine studies were eligible and were included, with a total of 533 and 542 subjects on palm olein and other dietary oil diets, respectively. We extracted and compared all the data for serum lipids, such as total cholesterol (TC), LDL cholesterol, HDL cholesterol, triglyceride, and TC/HDL cholesterol ratio. When comparing palm olein with other dietary oils, the overall weighted mean differences for TC, LDL cholesterol, HDL cholesterol, triglycerides, and the TC/HDL cholesterol ratio were −0.10 (95% CI: −0.30, 0.10; P = 0.34), −0.06 (95% CI: −0.29,0.16; P = 0.59), 0.02 (95% CI: −0.01, 0.04; P = 0.20), 0.01 (95% CI: −0.05, 0.06; P = 0.85), and −0.15 (95% CI: −0.43, 0.14; P = 0.32), respectively. Overall, there are no significant differences in the effects of palm olein intake on lipoprotein biomarkers (P > 0.05) compared with other dietary oils. However, dietary palm olein was found to have effects comparable to those of other unsaturated dietary oils (monounsaturated fatty acid– and polyunsaturated fatty acid–rich oils) but differed from that of saturated fatty acid–rich oils with respect to the serum lipid profile in healthy adults.


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