Trajectories of Lipid Profile and Risk of Carotid Atherosclerosis Progression: A Longitudinal Cohort Study

Background: Early assessment of carotid atherosclerotic plaque characteristics is essential for atherosclerotic cardiovascular disease (ASCVD) risk stratification and prediction. We aimed to identify different trajectories of lipid profiles and investigate the association of lipid trajectories with carotid atherosclerosis (CAS) progression in a large, longitudinal cohort of the Chinese population. Methods: 10,412 participants aged ≥18 years with ≥2 times general health checkups were included in this longitudinally prospective cohort study at Peking University Third Hospital. We used latent class trajectory models to identify trajectories of total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), triglycerides (TG), and high-density lipoprotein cholesterol (HDL-C) over follow-up time (757 days, IQR: 388–844 days). Results: Participants with carotid plaque were more likely to be older, male, have higher body mass index, have a higher prevalence of hypertension and diabetes, and have a higher level of blood pressure, TG, TC, and LDL-C, compared with carotid intima-media thickness (cIMT) and normal group. Subjects were trichotomized according to different trajectory patterns into stable, moderate-stable, and elevated-increasing classes. TC ≥ 5.18 mmol/L and moderate-stable class (hazard ratio (HR): 1.416, 95% confidence interval (CI): 1.285–1.559, p: 0.000), TG ≥ 1.70 mmol/L and moderate-stable class (HR: 1.492, 95% CI: 1.163–1.913, p: 0.002), TG ≥ 1.70 mmol/L and elevated-increasing class (HR: 1.218, 95% CI: 1.094–1.357, p: 0.000), LDL-C ≥ 3.36 mmol/L and stable class (HR: 1.500, 95% CI: 1.361–1.653, p: 0.000) were statistically significant associated with CAS progression compared with the reference group. Conclusions: Borderline elevated baseline lipid (TC, TG, and LDL-C) with stable and elevated-increasing trajectories were associated with CAS progression. Long-term strategies for low-level lipid are beneficial for ASCVD management.     

上海市松江区泗泾地区健康人群血脂水平调查与分析

目的调查泗泾地区人群血脂水平和血脂谱现状,探讨泗泾镇高脂血症发病情况及高脂血症与年龄、血致动脉硬化指数（AIP）水平关系,为血脂异常防治提供客观依据。方法收集2010年4—12月在泗泾医院体检的8098例人员资料,并测定甘油三酯（TG）、总胆固醇（TC）、低密度脂蛋白胆固醇（LDL—C）和高密度脂蛋白胆固醇（HDL—C）,计算出非高密度脂蚕白胆固醇（non—HDL—C）、AIP,并按不同年龄段进行分组,将各组进行比较分析。结果TC水平最高男性为4．83mmol/L,女性为5．24mmol／L,高水平年龄在61—70岁;TG水平最高男性为2．02mmol/L,女性为1．67mmol／L,年龄在41-70岁：HDL-C最低水平为1．12mmol／L,各年龄段均在合适水平;LDL—C最高男性为2．36mmol／L,女性为2．47mmol／L,年龄在31～70岁．健康人异常脂蛋白血症发生率（按2007年《中国成人血脂异常防治指南》中血脂水平划分方案划1分为TC38．89％、TG32．21％、HDL—C24．92％和LDL—C5．09％。结论该地区健康人TC、TC、HDL—C和LDL—C整体水平明显高于2002年中国营养与健康调查血脂在人群中的水平。血脂谱以异常高TC占首位,依次为TG、HDL—C和LDL—C．高TG血症发生率（32．21％）与高TC血症发生率（38．49％）相差不多,应重视高TG血症防治。     

Atherogenic Index of Plasma and Its Association with Risk Factors of Coronary Artery Disease and Nutrient Intake in Korean Adult Men: The 2013–2014 KNHANES

Coronary artery disease (CAD) has been linked to one of the highest death rates globally. The atherogenic index of plasma (AIP) may be an important predictor of atherosclerosis and cardiovascular disease, superior to the standard atherosclerotic lipid profile. This study investigated the relationship between AIP and obesity indices, blood glucose, lipid profile, and nutrient intake status in Korean adult men. The study included 1292 males aged ≥19 years old who participated in the Korea National Health and Nutrition Examination Survey, 2013–2014. Participants were divided into four groups according to AIP quartiles, calculated as log (triglyceride (TG)/high-density lipoprotein cholesterol (HDL-C)). Body mass index, waist circumference, fasting blood glucose, hemoglobin A1c, total cholesterol, TG, and low-density lipoprotein cholesterol levels increased as AIP levels increased, whereas HDL-C level declined. As the level of AIP increased, intake of saturated fatty acid, calcium, phosphorus, riboflavin, milk, and dairy product decreased significantly, and the contribution rate of milk and dairy products to fat intake decreased. AIP was linked to obesity indices, blood glucose, and blood lipid profile in Korean men, suggesting that it could predict CAD.     

接触一氧化碳工人血清LDL—C,HDL—C及脂质过氧化物含量的研究

本文对长期接触一氧化碳(CO)的工人血清高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)、总胆固醇(TC)、甘油三脂(TG)及脂质过氧化物(LPO)含量进行了研究。结果表明,长期接触低浓度CO者的血清TG、LPO及HbCO含量与对照组比较,有极显著性差异(P<0.001)。     

The Role of Socioeconomic Status in Adherence to the Mediterranean Diet and Body Mass Index Change: A Follow-Up Study in the General Population of Southern Croatia

The Mediterranean diet (MD) is one of the most healthful dietary patterns, beneficial for humans and the environment. However, the MD has recently exhibited a declining trend, especially in younger and less affluent people. This study investigated the association between socioeconomic indicators and adherence to the MD in 4671 adult subjects from Dalmatia, Croatia (age range 18–98 years; 61.9% were women). Additionally, in the follow-up we examined the change in adherence to the MD and in BMI (subsample, N = 1342; 62.5% were women; mean follow-up time of 5.8 years). The adherence to the MD was based on the Mediterranean Diet Serving Score (range 0–24 points, cut-off value ≥ 14 points), with a prevalence in the overall sample of 28.5%. Higher odds of adherence to the MD were recorded in women, older subjects, and those with higher level of objective material status, while it was less likely in the period after economic crisis of 2007–2008. Additionally, we detected no change in adherence to the MD in the follow-up subsample (−8.5%, p = 0.056), but there was an increase in BMI (+6.5%, p < 0.001). We recorded an increase in adherence for nuts (+127.5%), sweets (+112.6%), red meat (+56.4%), and wine (+50.0%), unlike the reduction in adherence for vegetables (−35.1%), fish (−23.4%), white meat (−11.6%), cereals (−10.9%), and dairy products (−9.6%). Similar results were obtained across all quartiles of objective material status. Over time, the absolute change in the MD score was positively associated with female gender, age, higher education, and moderate physical activity, but it was negatively associated with adherence to the MD at baseline. BMI change was positively associated with female gender, and negatively with initial BMI, initial adherence to the MD, and MD change. Our findings point towards a less than ideal adherence to the MD in the general population of southern Croatia, and identify important characteristics associated with adherence change over time, informing necessary interventions aimed at increasing MD uptake.     

Relationship between Dietary Habits and Control of Lipid Profiles in Patients with Dyslipidemia Using Pravastatin

We investigated the association between dietary habits, evaluated using the modified Mini Dietary Assessment Index for Koreans (MDA), and lipid control among patients aged ≥20 years who had used pravastatin for dyslipidemia for 6 months. Participants were administered questionnaires regarding sociodemographic characteristics and lifestyle factors. Odds ratios and 95% confidence intervals for the control of low-density lipoprotein cholesterol (LDL-C), triglyceride (TG), and total cholesterol (TC) at 6 months for each category of the modified MDA items were calculated through multivariate logistic regression analysis. The odds for controlled LDL-C was higher among those who consumed cholesterol-rich foods <1 time/week (3.27, 1.25–8.57) than for those who did so ≥4 times/week. The odds for controlled TG was higher among those who always consumed dairy products (2.96, 1.36–6.44), ate protein-rich foods three times/day (2.94, 1.06–8.10), and had a regular eating schedule (3.02, 1.30–7.00) than among those who did not have any of these. The odds for controlled TC was higher among those with a regular eating schedule (3.47, 1.55–7.76) than among their counterparts. Patients with dyslipidemia should consume less cholesterols, consume more dairy and protein-rich foods, and follow a regular eating schedule to control lipid profiles.     

Hypolipidemic Effects and Safety of Lactobacillus Reuteri 263 in a Hamster Model of Hyperlipidemia

We aimed to verify the beneficial effects of probiotic strain Lactobacillus reuteri 263 (Lr263) on hypolipidemic action in hamsters with hyperlipidemia induced by a 0.2% cholesterol and 10% lard diet (i.e., high-cholesterol diet (HCD)). Male Golden Syrian hamsters were randomly divided into two groups: normal (n = 8), standard diet (control), and experimental (n = 32), a HCD. After a two-week induction followed by a six-week supplementation with Lr263, the 32 hyperlipidemic hamsters were divided into four groups (n = 8 per group) to receive vehicle or Lr263 by oral gavage at 2.1, 4.2, or 10.5 × 10⁹ cells/kg/day for 6 weeks, designated the HCD, 1X, 2X and 5X groups, respectively. The efficacy and safety of Lr263 supplementation were evaluated by lipid profiles of serum, liver and feces and by clinical biochemistry and histopathology. HCD significantly increased serum levels of total cholesterol (TC), triacylglycerol (TG) cholesterol, high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C), LDL-C/HDL-C ratio, hepatic and fetal TC and TG levels, and degree of fatty liver as compared with controls. Lr263 supplementation dose dependently increased serum HDL-C level and decreased serum TC, TG, LDL-C levels, LDL-C/HDL-C ratio, hepatic TC and TG levels, and fecal TG level. In addition, Lr263 supplementation had few subchronic toxic effects. Lr263 could be a potential agent with a hypolipidemic pharmacological effect.     

The effects of cessation from cigarette smoking on the lipid and lipoprotein profiles: a meta-analysis

BACKGROUND: Cross-sectional studies revealed that cigarette smokers have lower high-density lipoprotein cholesterol (HDL-C) levels and higher levels of total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), and triglycerides (TG) than nonsmokers. But prospective studies on the effects of cigarette smoking cessation on lipid profile have yielded inconclusive results. METHODS: Relevant English articles were retrieved by keyword searches of MEDLINE (1966-October 2000), Cochrane Library (2000, Issue 2), and cited references. Twenty-seven studies met the following inclusion criteria: (1) prospective cohort study including clinical trials, (2) measuring smoking status and lipid profile of HDL-C, TC, LDL-C, and TG, (3) reporting the changes of lipid concentrations in abstinent smokers, and (4) not using adjuvant antihyperlipidemic drugs. RESULTS: Overall Q statistics for net change of HDL-C, TC, LDL-C, and TG showed heterogeneity. Using a random-effects model, HDL-C level increased significantly [0.100 (CI 0.074 to 0.127) mmol/L] after smoking cessation. However, levels of TC [+0.003 (CI -0.042 to 0.048)], LDL-C [-0.064 (CI -0.149 to 0.021)], and TG [+0.028 (CI -0.014 to 0.071)] did not change significantly after smoking cessation. CONCLUSIONS: Cigarette smoking cessation increases serum levels of HDL-C but not of TC, LDL-C, and TG.     

Different postprandial metabolic patterns after the consumption of fish oil and lard in healthy Chinese individuals

AimIt is well known that nutritional intervention has positive effects on the secondary prevention of coronary heart disease. Different fat compositions of meals may alter postprandial plasma lipid patterns, which can further influence lipid metabolism in vivo.MethodsIn the present study, we investigated postprandial plasma lipid parameters in twenty healthy volunteers after eating fat meals either with 80 gram lard or 80 gram fish oil. Blood samples were drawn at 0, 0.5, 1, 2, 3, 5 and 7 hours and plasma levels of total triglycerides (TG), total cholesterol (TC), high density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) were determined.ResultsIt demonstrated that postprandial plasma concentrations of TG, TC and LDL-C were significantly lower whereas HDL-C was higher after eating fish oil compared to the consumption of lard. Moreover, comparing the individuals with or without dyslipidemic family history, the healthy individuals without family history of dyslipidemia after eating fish oil had even lower postprandial plasma TG and LDL-C (P < 0.05) than the subjects with the family history. It is concluded that postprandial response following fish oil could be as a result of reduced TG, TC and LDL-C, and increased HDL-C.ConclusionsPostprandial responses following fish oil consumption may reduce TG, TC and LDL-C plasma levels, and increase HDL-C level. Individuals with dyslipidemic family history may have enhanced postprandial response than the individuals without dyslipidemic family history.     

Consumption of Ultra-Processed Foods Is Inversely Associated with Adherence to the Mediterranean Diet: A Cross-Sectional Study

Information on the consumption of ultra-processed foods (UPF) in relation to an adherence to the Mediterranean diet (MD) is limited. Our aim was to assess UPF consumption in a group of Italian adults and to evaluate the relationship with the MD adherence. A total of 670 participants (median age: 30 years) were included in the analysis. The consumption of UPF was assessed through the NOVA Food Frequency Questionnaire (NFFQ). Adherence to the MD was assessed through the Medi-Lite score. The percentage of UPF in the diet was 16.4% corresponding to 299 g of UPF per day. These amounts were significantly (p < 0.05) higher in men than in women and came mainly from ready-to-eat meals or pre-packaged bread, bread alternatives, pizza, frozen potato chips (24.5% of total UPF intake), pre-packaged biscuits and sweets (20.7%), soft drinks (15.8%), and dairy products such as flavored yogurt (12%). As to the MD adherence, a significant inverse association between the Medi-Lite score and the percentage of UPF in the diet (R = −0.35; p < 0.001) was observed. Participants with a low adherence to the MD had a significantly higher contribution of UPF in the diet (22.2%) compared to those with a moderate (16.2%) and high (12.6%) adherence. In terms of individual UPF, the largest difference between low and high MD adherents was observed for pre-packaged biscuits and sweets, soft and energy drinks, sausages and other reconstituted meat products, and pre-packaged bread and bread alternatives. These results suggest that public health strategies are needed to implement more effective actions to promote healthy eating habits in the population.     

绝经后妇女冠心病患者性激素水平与脂质代谢的临床观察

目的:观察绝经后妇女冠心病(CHD)患者血清性激素水平与脂质代谢关系。方法:58例绝经后妇女CHD患者作为观察组,58例绝经后健康妇女作为对照组,测定两组性激素相关指标(血清雌二醇(E2)、孕酮(P)、睾酮(T)、催乳素(PRL)、黄体生成素(LH)、促卵泡激素(FSH)、E/T)及脂质代谢相关指标(总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)、载脂蛋白B(ApoB)、HDL-C/LDL-C、HDL-C/TC)水平,并进行相关性分析。结果:观察组患者E2、HDL-C、E/T、HDL-C/LDL-C、HDL-C/TC水平明显低于对照组,TC、TG、LDL-C、ApoB水平均明显高于对照组,差异有统计学意义(P<0.01或P<0.05);经多元回归分析观察组患者E2、E/T与TC、TG、LDL-C、ApoB水平呈负相关。结论:绝经后妇女CHD患者血脂异常与性激素下降密切相关,且共同参与CHD发生、发展。     

Association between Intake of Fermented Dairy Product and Diet Quality,Health Beliefs in a Representative Sample of Polish Population

This study aimed to evaluate the association of diet quality and perception of consumption benefits with intake of fermented dairy products in a representative sample of the Polish population. The study was carried out in February 2020 and involved 2009 men and women randomly sampled from the representative Polish population stratified into two age groups (19–30 and 66–75 years). Dairy product intake was evaluated using a qualitative food frequency questionnaire. Diet quality was assessed by calculating the Mediterranean Diet Adherence Screener (MEDAS) score. The perceived health benefit of dairy product consumption was assessed by a literature-based questionnaire. The Health Concern Scale was used to measure participants’ attitudes toward health. The median intake of fermented dairy products was 0.8 portion/day (IQR: 0.4–1.6). Intake of fermented dairy products was associated with a higher MEDAS score. We observed that people with the highest intake of fermented dairy products consumed more oils, vegetables, wine, legumes, fish and seafood, sweets and pastries, nuts, had a higher preference for white meat and were more likely to report their perceived benefits to maintain body weight, reduce cardiovascular risk, and improve immune and dental health. Moreover, a high intake of fermented dairy products was positively related to paying more attention to health. Our study identified patterns of health behaviors associated with the frequent consumption of fermented dairy products. We observed that the intake of fermented dairy products is associated with better diet quality, consumer self-consciousness, and a greater attitude toward personal health.     

Maternal and paternal family history of type 2 diabetes differently influence lipid parameters in young nondiabetic Japanese women

Objectives

We assessed the association of family history of type 2 diabetes (T2D) with parameters used for health checkups in young Japanese women.

Methods

The subjects were 497 nondiabetic women aged 19–39 years. Among them, the mothers of 34 subjects and fathers of 50 had T2D (MD group and PD group, respectively). The subjects were assessed for levels of total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and triglyceride (TG).

Results

TC and LDL-C level showed a tendency to increase in the MD group compared with subjects without family history of T2D. LDL-C/HDL-C ratio ≥2.14 was found in 32.4 and 18.0 % of subjects in the MD and PD groups, respectively. When adjusted for differences in age, body mass index, smoking status, and drinking habits, the MD group was found to have a higher risk of abnormal TC and LDL-C levels than the PD group. LDL-C/HDL-C ratio was independently associated with maternal family history but not with paternal family history (odds ratio 3.44 [99 % confidence interval 1.11–10.6] and 1.21 [0.38–3.89], respectively). There was no association between TG/HDL-C ratio and family history type of T2D.

Conclusions

Maternal family history of T2D had a more pronounced effect on the lipid parameters generally evaluated during health checkups than did paternal family history of T2D. Therefore, we recommend systematic screening for early detection and appropriate healthcare guidance for Japanese women, particularly those with maternal family history of T2D.     

广东省≥15岁居民血脂异常分布特征及影响因素

目的了解广东省≥15岁居民血清胆固醇、甘油三脂、高密度脂蛋白的水平、分布及相关影响因素。方法运用多阶段整群随机抽样方法,抽取广东省大城市、中小城市、2类农村各3个区(县),1类农村4个县,每个县(区)抽取3个街道(乡)、6个居委,共540户进行体格检查和血脂测定。用面对面询问调查获得15岁及以上居民个人基本情况,体检获取体重、身高数据;血脂采用酶法进行检测,使用Saturno 300生化分析仪和日立7060自动生化分析仪进行测定。结果共调查5 260人,甘油三脂(TG)、胆固醇(TC)、高密度脂蛋白(HDL-C)均值分别为1.13 mmol/L、4.27 mmol/L和1.31 mmol/L,年龄校正的均数分别为0.81 mmol/L、3.15 mmol/L和1.00 mmol/L。TG均值城市高于农村(P<0.05),随着年龄的增加而上升(P<0.05)。TC、HDL-C均值女性高于男性,城市高于农村(P<0.05)。血脂异常率为23.3%,其中高TG、高TC和低HDL-C的患病率分别为12.0%、8.1%和8.0%,年龄标化率分别为9.4%、5.9%和7.9%。高TG患病率男性高于女性,城市高于农村(P<0.05),随着年龄的增加有上升趋势(P<0.05)。高TC患病率城市高于农村(P<0.05),随着年龄的增加有上升趋势(P<0.05)。低HDL-C患病率女性低于男性(P<0.05)。年龄是高TG、TC的危险因素;超重肥胖是高TG、高TC和低HDL-C的危险因素;饮酒是高TG、高TC的危险因素,但是低HDL-C的保护因素;中等收入是高TG、高TC血症的危险因素,高收入对低HDL-C血症是保护因素。结论广东省居民血脂异常率较高,年龄、超重肥胖、饮酒和家庭经济收入是血脂异常的主要影响因素。     

Distributions of total cholesterol, triglycerides, and high-density lipoprotein cholesterol in Israeli Jewish children of different geographic-ethnic origins, ages 9-17 years

To determine age and ethnic patterns of blood lipid levels in childhood and adolescence and to extend previous adult and late adolescent Israeli data to prepubertal ages, the levels of plasma total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), and triglycerides (TG) were determined among 1,153 schoolchildren in the area of Petah-Tikva. Half of the children were born to immigrants from Yemen. Among boys, TC levels progressively decreased as age increased from 10-11 to 14-15 years (159 to 142 mg/dl). The age-specific TC and HDL-C means among boys are compatible with an initial swift fall with age, followed by a rise restricted to TC during puberty. Among girls, progressively lower means through ages 12-13 and increasingly higher ones for older age groups are also compatible with puberty-determined changes, previously observed in American cohorts. The differences in TC were only partly accounted for by lower HDL-C means at higher ages (52 mg/dl in the youngest and 45 mg/dl in the oldest age group, respectively, among boys, compared with 53 mg/dl for girls at both ages 9 and 16-17). TG levels in boys, but not in girls, showed age differences paralleling those found for HDL-C, but in an inverse direction. TC means were lower as age increased only among female offspring of European-born Jews (159 to 148 mg/dl, ages 9-12 compared with ages 13-17), a phenomenon that requires further study. Overall, TC and HDL-C were clearly higher among girls than boys beginning at ages 12-13, with little or no sex differences in TG. The sex differences in TC, contrary to previous studies, were not fully accounted for by HDL-C sex differences. The ethnic variability paralleled previous findings in Israeli adults and adolescents, showing low TC levels among male offspring of Yemenite and other Asian-born fathers. The ethnic differences among girls were small. No specific pattern of age-related lipid changes was found in the group of Yemenite origin, who represented offspring of parents with notoriously low levels of coronary heart disease incidence.     

银川市区回汉小学生血脂水平现状分析

目的 探讨银川市区回、汉族学生的血脂差异,为不同民族儿童期预防心脑血管疾病提供基础数据。方法 于2013年9月随机抽取银川市区3所小学,并采用分层整群抽样方法对7~12岁学生进行抽样。采集学生空腹静脉血,并测定其血脂四项即总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)和高密度脂蛋白胆固醇(HDL-C)。结果 1)本次调查1 403人,血脂异常检出率为28.2%,回、汉族血脂异常检出率分别为37.8%和24.6%,回族高于汉族,差异有统计学意义(P<0.01);回、汉族学生血脂四项异常检出率中,LDL-C、HDL-C异常检出率差异均有统计学意义(P<0.01),回族高于汉族。2)同一性别不同民族血脂水平比较,男生除TG外其余三项血脂水平差异均有统计学意义(P<0.01),回族TC和HDL-C水平低于汉族,而LDL-C水平高于汉族;女生四项血脂水平差异均有统计学意义(P<0.05),回族TG、TC和HDL-C水平均低于汉族,而LDL-C水平高于汉族。3)同一民族不同性别比较中,除了汉族男、女学生的TG、HDL-C比较差异有统计学意义外(P<0.05),其余差异均无统计学意义。结论 回、汉族学生血脂异常检出率存在差异,则该地区防治儿童血脂异常应考虑不同民族的遗传因素和生活方式的影响。     

Dietary Quality among Tehranian Adults in Relation to Lipid Profile: Findings from the Tehran Lipid and Glucose Study

The prevalence of dyslipidaemia has been increasing in developing countries that are undergoing nutrition transition. However, the association of diet quality and lipid profile has not been well-understood in these countries. The aim of the current study was to compare the ability of three diet quality indices—the Mediterranean diet scale (MDS), healthy eating index-2005 (HEI-2005), and diet quality index-international (DQI-I) in relation to changes in lipid profile between baseline and 6.7 years of follow-up. Baseline data from two 24-hour dietary recalls provided by 469 adults with mean age of 38.7±12.3 years, who were participants of the Tehran Lipid and Glucose Study, were analyzed to describe dietary intakes. Data on anthropometry, sociodemography, physical activity, and other lifestyle variables were recorded, and a comparison of baseline and follow-up data revealed changes in the concentrations of total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C). A general linear model was used in assessing changes in lipid profile depending on adherence to diet quality indices at baseline, after adjustment for age, smoking status, waist-circumference, body mass index, physical activity, and energy intake. A significant interaction was observed between scores and sex, and upon stratification, males in the highest quartile score of the HEI-2005 had significantly lower TG changes than those in the lowest quartile, after adjusting for confounders (-8.8 vs 2.9, p=0.038). No association was apparent in females (-0.2 vs 11.2, p=0.297). In addition, a positive association was found between DQI-I and HDL-C (Q1=0.6 vs Q4=-2.0, p=0.044) in males. In both sexes, all these indices were weakly associated with TC while none was associated with LDL-C. It is concluded: adherence to the HEI-2005 recommendations was weakly associated with reduced TG concentration in an urban Iranian adult population. The MDS and DQI-I were not related to change in lipid profile.Key words: Diet quality index-international, Healthy eating index-2005, Lipid profile, Mediterranean diet scale     

The Effects of Carbohydrate versus Fat Restriction on Lipid Profiles in Highly Trained,Recreational Distance Runners: A Randomized,Cross-Over Trial

A growing number of endurance athletes have considered switching from a traditional high-carbohydrate/low-fat (HCLF) to a low-carbohydrate/high-fat (LCHF) eating pattern for health and performance reasons. However, few studies have examined how LCHF diets affect blood lipid profiles in highly-trained runners. In a randomized and counterbalanced, cross-over design, athletes (n = 7 men; VO_2max: 61.9 ± 6.1 mL/kg/min) completed six weeks of two, ad libitum, LCHF (6/69/25% en carbohydrate/fat/protein) and HCLF (57/28/15% en carbohydrate/fat/protein) diets, separated by a two-week washout. Plasma was collected on days 4, 14, 28, and 42 during each condition and analyzed for: triglycerides (TG), LDL-C, HDL-C, total cholesterol (TC), VLDL, fasting glucose, and glycated hemoglobin (HbA1c). Capillary blood beta-hydroxybutyrate (BHB) was monitored during LCHF as a measure of ketosis. LCHF lowered plasma TG, VLDL, and TG/HDL-C (all p < 0.01). LCHF increased plasma TC, LDL-C, HDL-C, and TC/HDL-C (all p < 0.05). Plasma glucose and HbA1c were unaffected. Capillary BHB was modestly elevated throughout the LCHF condition (0.5 ± 0.05 mmol/L). Healthy, well-trained, normocholesterolemic runners consuming a LCHF diet demonstrated elevated circulating LDL-C and HDL-C concentrations, while concomitantly decreasing TG, VLDL, and TG/HDL-C ratio. The underlying mechanisms and implications of these adaptive responses in cholesterol should be explored.     

中老年2型糖尿病患者血糖血脂的监测与分析

目的监测分析中老年糖尿病患者血脂血糖水平。方法选择419例社区中老年2型糖尿病患者进行血脂、血糖监测,并与同期528名健康者的资料进行对比分析。结果中老年2型糖尿病组总胆固醇(TC)、甘油三酯(TG)水平明显高于正常对照组;60岁以下组TG、TC水平均显著高于60岁以上组;TC、TG、高密度脂蛋白胆固醇(HDL-C)和低密度脂蛋白胆固醇(LDL-C)4项指标同时异常率达15.51%;空腹血糖水平与TC、TG水平呈正相关,与HDL-C、LDL-C无明显相关性。结论 2型糖尿病患者糖代谢异常并伴随血脂代谢紊乱,对中老年2型糖尿病患者除控制血糖外,更应重视对血脂异常的治疗,以减少各种并发症的发生。     

Serum lipid levels in an Iranian population of children and adolescents: Tehran lipid and glucose study

Data from 3148 participants aged 3–19years (1447 males and 1701 females) in the cross-sectional phase of Tehran lipid and glucose study (February 1999–May 2000) were used to determine serum lipid levels [total cholesterol (TC), triglycerides (TGs), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C)] after 12–14 hours overnight fast. The values were analyzed by sex and age. Mean serum TC concentration was 170 mg/dl. TC was significantly greater in females than males (173 vs. 167 mg/dl, p < 0.05). The 90th and 95th percentiles for serum TC were 211 and 227 mg/dl, respectively. There was a significant decrease in mean TC in males during puberty. Thirty-one percent of population had TC values between 170 and 199 mg/dl and 16% had values of 200 mg/dl or greater. The mean TGs values were 103 for males and 108 mg/dl for females [non-significant (NS)]. The prevalence of high-risk values of TGs increased with age in males, reaching a peak at 17–19years. The mean HDL-C level was 45 mg/dl. Mean HDL-C was highest at 7–10years of age and decreased thereafter. The mean LDL-C was 102 in males and 107 mg/dl in females (NS). Twenty-two percent had LDL-C values between 110 and 129 mg/dl and 17% had values 130 mg/dl or greater. The results showed higher levels of TC, LDL-C and TGs and lower HDL-C in Tehranian children and adolescents than other studies. To design comprehensive public health programs to reduce serum lipid levels among Iranian children and adolescents, underlying factors for the high prevalence of dyslipoproteinemia should be sought.