Abstract P267: Cardiorespiratory Fitness Does not Attenuate the Association Between Adiposity and Blood Lipids in Children and Adolescents: Project HeartBeat! (1991-1995)

Circulation ◽  
2014 ◽  
Vol 129 (suppl_1) ◽  
Author(s):  
Olakunle A Folorunso ◽  
Christina M Shay ◽  
Kai Ding ◽  
Susan B Sisson ◽  
Sheryl L Magzamen ◽  
...  

Background: Higher levels of adiposity are associated with unfavorable blood lipid levels in pediatric populations. However, little is known about the extent to which cardiorespiratory fitness attenuates this association. Methods: Participants ages 8-16 years (n=256) with valid measures of blood lipids, cardiorespiratory fitness (CRF) and adiposity were examined from Project Heartbeat!, a longitudinal study of cardiovascular risk factors among children and adolescents. CRF was assessed by maximum oxygen uptake: VO 2max (mL/kg/min) measured during treadmill testing and adiposity was assessed by percent body fat (PBF) estimated using sex-specific formulas incorporating bioelectric impedance and six-site skinfold measures. Fasting blood lipids included total cholesterol (TC), triglycerides (TG), low density lipoprotein cholesterol (LDL-C) and high density lipoprotein cholesterol (HDL-C). Linear regression was used to quantify cross-sectional associations between CRF and adiposity with blood lipids by sex and pubertal status (Tanner stage 1 vs. 2-5). Results: When examined individually, higher PBF and lower VO 2max were associated with more favorable levels of blood lipids in pre-pubertal boys, however, the associations were not consistent across all sex/puberty groups (Table 1). In multivariate models where both VO 2max and PBF were included, PBF remained significant for all blood lipids in pre-pubertal boys but only with TC and LDL-C in pre-pubertal girls. Among pubertal participants, only TG remained significantly associated with PBF when similarly accounting for VO 2max . Conclusions: Prior to the onset of puberty, higher adiposity is independently associated with more favorable levels of TG and HDL-C in boys and TC and LDL-C in girls even after accounting for CRF. During puberty, the majority of these associations are greatly attenuated, which further highlights the complexities associated with examining correlates of blood lipids in developing children.

2021 ◽  

Background: Dyslipidemia, a genetic and multifactorial disorder of lipoprotein metabolism, is defined by elevations in levels of total cholesterol, low-density lipoprotein cholesterol (LDL-C), non-high-density lipoprotein cholesterol (non–HDL-C), triglyceride, or some combination thereof, as well as lower levels of high-density lipoprotein (HDL) cholesterol. Objectives: This study aimed to investigate the prevalence and predictors of dyslipidemia in children and adolescents in the Yazd Greater Area, Yazd, Iran. Methods: This cross-sectional study was conducted as a part of the national project implemented in Yazd Greater Area, Yazd, Iran. The sampling was performed using a multi-stage cluster sampling method on three age groups of girls and boys (6-9, 10-14, and 15-18 years old). Out of the total 1,035 children and adolescents who participated in this study, only 784 participants remained in the study until the end. Data collection was performed using lifestyle questionnaires including Kiddie-SADS-Present and Lifetime Version. Results: The prevalence of high triglyceride was estimated at 1.4% and 4.2% in 6-9 and 10-18 years old children and adolescents, respectively. The prevalence of high cholesterol, LDL, and HDL was 3.2%, 3.2%, and 25.6%, respectively. The prevalence of dyslipidemia in the total population of children and adolescents in terms of demographic variables was 64.6% and 57.3% in boys and girls, respectively (P=0.038). Gender and increase in body mass index were significantly associated with dyslipidemia with OR=1.35; 95% CI: 1.01-1.81 and OR=13.781; 95% CI: 3.78- 46.43, respectively. However, after adjustment for other factors, only an increase in BMI was significantly associated with dyslipidemia (OR=16.08; 95% CI: 4.49-57.59). Conclusions: Overweight and obese adolescents had a higher concentration of serum blood triglycerides, compared to other adolescents. Weight control, lifestyle modification, and diet are three ways to reduce lipid disorders in adolescents.


2020 ◽  
Author(s):  
Li-Ling Guo ◽  
Yan-qiao Chen ◽  
Qiu-zhen Lin ◽  
Feng Tian ◽  
Qun-Yan Xiang ◽  
...  

Abstract Background: Although the detection of non-fasting blood lipids has been recommended in patients with coronary heart disease (CHD), the non-fasting cut-off points corresponding to the fasting goals of LDL-C < 1.8 mmol/Land non-HDL-C < 2.6 mmol/L, respectively, have not been explored. Methods: This study enrolled 397 inpatients with CHD. One hundred and ninety-seven patients took statins for < 1 month (m) or did not take any statin before admission (i.e. CHD1 group), while 204 patients took statins for ≥ 1 m before admission (i.e. CHD2 group). Blood lipid levels were measured at 0 h, 2 h, and 4 h after a daily breakfast. Results: Non-fasting low-density lipoprotein cholesterol (LDL-C) and non-high-density lipoprotein cholesterol (non-HDL-C) levels significantly decreased after a daily meal ( P < 0.05). Both fasting and non-fasting LDL-C or non-HDL-C levels were significantly lower in the CHD2 group. The percent attainment of LDL-C < 1.8 mmol/L at 2 h or 4 h after a daily breakfast was significantly higher than that of its fasting point ( P < 0.05), whereas that of non-HDL-C < 2.6 mmol/L was significantly higher only at 4 h ( P < 0.05). Analysis of c-statistic showed that non-fasting cut-off points for LDL-C and non-HDL-C were 1.5 mmol/L and 2.4 mmol/L, corresponding to their fasting goal levels of 1.8 mmol/L and 2.6 mmol/L, respectively. When postprandial LDL-C and non-HDL-C goal attainments were re-evaluated by non-fasting cut-off points, there were no significant differences in percent attainment between fasting and non-fasting states. Conclusions: Determination ofnon-fasting cut-off points is important to evaluate the efficacy of cholesterol-lowering therapy if blood lipids are detected after a daily meal.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Monireh Panbehkar-Jouybari ◽  
Mehdi Mollahosseini ◽  
Amin Salehi-Abargouei ◽  
Hossein Fallahzadeh ◽  
Masoud Mirzaei ◽  
...  

Abstract Background The association between the Mediterranean diet (MED) or dietary approach to stop hypertension (DASH) and cardiovascular disease (CVD) risk factors is well-documented. Nevertheless, a consistent relationship with the Middle East population has yet to be known. Thus, we aimed to investigate the association between DASH/MED and blood lipids in Iranian adults. Methods Four thousand seven hundred forty participants, aged 35–70 years (mean: 50.0) participated in the Shahedieh cohort study in Yazd, Iran, were followed from 2016 until now. Participants provided dietary and blood lipid data through a validated semi-quantitative food frequency questionnaire, and blood samples were taken after a fasted state. We used binary logistic regression to examine the association between DASH/MED scores and blood lipids. Results In the participants who ingested a DASH-like diet the third vs. the first tertile of total cholesterol (TC), triglyceride (TG), low-density lipoprotein (LDL) levels, and LDL/HDL (high-density lipoprotein) ratio reduced significantly (P < 0.01). While in the participants who ingested the MED-like diet the HDL level increased significantly( 52.8 ± 12. 3 vs. 51.6 ± 11.6, P < 0.01). In Binary logistic regression, higher adherence to the DASH diet showed 19 % lower odds of high TC level (OR: 0.81; 95 %CI: 0.69–0.95) and 18 % lower odds of high LDL/HDL ratio (OR: 0.82; 95 %CI: 0.70–0.96). Besides, high adherence to the MED diet was associated with lower odds of LDL/HDL ratio (OR: 0.85; 95 %CI: 0.72–0.99). Conclusions Our findings suggest that TC, TG, LDL, LDL/HDL ratio, and HDL improved in participants who ingested a DASH-like diet and the LDL/HDL ratio improved in participants who ingested MED-like diet and, subsequently they might have a protective effect on CVDs risk. Further epidemiological studies are needed to confirm our findings.


2021 ◽  
Author(s):  
Yingying Xie ◽  
Peiliu Qu ◽  
Tie Wen ◽  
Ling Liu ◽  
Xiao Du ◽  
...  

Abstract Background: Hypertension (HBP) often occurs together with hypertriglyceridemia that indicates elevated triglyceride (TG) and remnant cholesterol (RC) levels. Non-fasting (i.e. postprandial) blood lipid test after a daily meal has been recommended by the European Atherosclerosis Society (EAS). However, little is known about the difference between fasting and non-fasting cut-off values in assessing high TG (HTG) and high RC (HRC) in HBP outpatients.Methods: Two hundred and twenty-five Chinese outpatients with HBP were enrolled in this study. According to the time of blood lipid test, they were divided into two groups, i.e. the fasting group (n=119) and the non-fasting group (n=139). Non-fasting levels of blood lipids at 2 h after a daily breakfast were also tested in 33 patients among the fasting group. Venous blood samples were collected. Serum levels of blood lipids were measured by the enzymatic and direct methods on a HITACHI 7170A analyzer or estimated via related formulas. Results: The non-fasting group had significantly higher levels of TG and RC while lower levels of total cholesterol, low-density lipoprotein cholesterol and non-high-density lipoprotein cholesterol than the fasting group (P<0.05). According to TG and RC cut-off values of the EAS, the percentages of HTG and HRC in the non-fasting group were 67.6% and 65.6%, respectively, while those in the fasting group were 57.1% and 52.9%, respectively. However, the percentages of HTG in the fasting state and at 2 h after a daily breakfast in 33 outpatients did not reach statistical significance (57.6% v.s. 51.5%). So did the fasting and at 2 h non-fasting percentages of HRC in them.Conclusion: Non-fasting blood lipid test could find more HBP outpatients with HTG in Chinese outpatients with HBP. However, the percentage of HTG at 2h after a daily breakfast seemed to be close to that in the fasting state.


Mediscope ◽  
2018 ◽  
Vol 5 (1) ◽  
pp. 15-21
Author(s):  
M Parveen ◽  
MA Muttalib ◽  
ST Huq ◽  
N Nazneen ◽  
MA Kabir ◽  
...  

The study, a cross-sectional survey, was carried out at the Department of Biochemistry in Bangladesh Institute of Research and Rehabilitation in Diabetes, Endocrine and Metabolic Disorders (BIRDEM) General Hospital from July 2015 to June 2016. A total of 576 clinically diagnosed children and adolescents with type 1 diabetes mellitus (T1DM) aged 10-18 years attending in ‘Changing Diabetes in Children’ clinic, BIRDEM-2, Dhaka were selected according to appropriate inclusion and exclusion criteria. The study subjects underwent detailed medical history and examination. Fasting blood samples were drawn from the participants for biochemical assays such as fasting blood sugar (FBS), glycated haemoglobin (HbA1c), total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol and triglycerides. Anthropometric data and blood pressures both systolic and diastolic were measured. Student unpaired t-test and Chi-square test were used to determine the association between different groups. Out of 576 T1DM patients, 45.0% (259) were male and 55.0% (317) were female. Of the 576 T1DM patients, 35.1% were without dyslipidemia (DLP) and 64.9% were with DLP. Study revealed that the patients with DLP were more likely to have higher values of HbA1c (10.1±2.2% vs 9.4±1.9%, p < 0.001) and FBS (13.0±4.4 mmol/L vs 10.2±2.9 mmol/L, p < 0.001). A substantial proportion of children and adolescents with T1DM had DLP. We found an association between poor glycemic control and abnormal lipid profiles in those patients. Mediscope Vol. 5, No. 1: Jan 2018, Page 15-21


2019 ◽  
Vol 42 (4) ◽  
pp. e468-e476 ◽  
Author(s):  
Xueli Yuan ◽  
Wenqing Ni ◽  
Rui Wang ◽  
Hongshan Chi ◽  
Yuanying Sun ◽  
...  

Abstract Background There may be a beneficial effect on lipid levels in Shenzhen in recent years. In this study, we aimed to examine trends in serum lipids in population in Shenzhen between 2009 and 2015. Methods We enrolled 2210 adults aged 18–70 years from two independent cross-sectional studies conducted in 2009 and 2015. Blood lipid profiles, such as total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C), were measured. Chi-square test, t-test and multivariate logistic regression analysis were applied for data analysis. Results From 2009 to 2015, mean LDL-C declined from 3.05 ± 0.76 mmol/L in 2009 to 2.27 ± 0.75 mmol/L in 2015 (P &lt; 0.001). Similarly, a significant 7.09% decrease in the prevalence of high LDL-C was observed over the same period (P &lt; 0.001). There was an increasing trend in the prevalence of low HDL-C among adults in Shenzhen (P &lt; 0.001). A no-significant increase in prevalence of dyslipidemia was also observed over this 6-year interval (P = 0.139). The prevalence of dyslipidemia was closely related with increasing age, male gender, current smoker, diabetes, obesity and overweight. Conclusion This study shows a favourable downward trend in LDL-C concentration in Shenzhen. However, more intense strategies are needed to control dyslipidemia.


2021 ◽  
Author(s):  
Yingying Xie ◽  
Peiliu Qu ◽  
Ling Liu ◽  
Xiao Du ◽  
Shilan Zhang ◽  
...  

Abstract Background Hypertension (HBP) often occurs together with hypertriglyceridemia that indicates elevated triglyceride (TG) and remnant cholesterol (RC) levels. Non-fasting (i.e. postprandial) blood lipid test after a daily meal has been recommended by the European Atherosclerosis Society (EAS). However, little is known about the difference between fasting and non-fasting cut-off values in assessing high TG (HTG) and high RC (HRC) in HBP outpatients. Methods Two hundred and twenty-five Chinese outpatients with HBP were enrolled in this study. According to the time of blood lipid test, they were divided into two groups, i.e. the fasting group (n=119) and the non-fasting group (n=139). Non-fasting levels of blood lipids at 2 h after a daily breakfast were also tested in 33 patients among the fasting group. Venous blood samples were collected. Serum levels of blood lipids were measured by the enzymatic and direct methods on a HITACHI 7170A analyzer or estimated via related formulas. Results The non-fasting group had significantly higher levels of TG and RC while lower levels of total cholesterol, low-density lipoprotein cholesterol and non-high-density lipoprotein cholesterol than the fasting group (P༜0.05). According to TG and RC cut-off values of the EAS, the percentages of HTG and HRC in the non-fasting group were 67.6% and 65.6%, respectively, while those in the fasting group were 57.1% and 52.9%, respectively. However, the percentages of HTG in the fasting state and at 2 h after a daily breakfast in 33 outpatients did not reach statistical significance (57.6% v.s. 51.5%). So did the fasting and at 2 h non-fasting percentages of HRC in them. Conclusion Non-fasting blood lipid test could find more HBP outpatients with HTG in Chinese outpatients with HBP. However, the percentage of HTG at 2h after a daily breakfast seemed to be close to that in the fasting state.


2020 ◽  
pp. 0271678X2096803
Author(s):  
Faria Sanjana ◽  
Peyton L Delgorio ◽  
Lucy V Hiscox ◽  
Theodore M DeConne ◽  
Joshua C Hobson ◽  
...  

Age-related memory loss shares similar risk factors as cardiometabolic diseases including elevated serum triglycerides (TGs) and low-density lipoprotein cholesterol (LDL-C) and reduced high-density lipoprotein cholesterol (HDL-C). The mechanisms linking these aberrant blood lipids to memory loss are not completely understood but may be partially mediated by reduced integrity of the hippocampus (HC), the primary brain structure for encoding and recalling memories. In this study, we tested the hypothesis that blood lipid markers are independently associated with memory performance and HC viscoelasticity—a noninvasive measure of brain tissue microstructural integrity assessed by high-resolution magnetic resonance elastography (MRE). Twenty-six individuals across the adult lifespan were recruited (14 M/12 F; mean age: 42 ± 15 y; age range: 22–78 y) and serum lipid profiles were related to episodic memory and HC viscoelasticity. All subjects were generally healthy without clinically abnormal blood lipids or memory loss. Episodic memory was negatively associated with the TG/HDL-C ratio. HC viscoelasticity was negatively associated with serum TGs and the TG/HDL-C ratio, independent of age and in the absence of associations with HC volume. These data, although cross-sectional, suggest that subtle differences in blood lipid profiles in healthy adults may contribute to a reduction in memory function and HC tissue integrity.


2020 ◽  
Vol 38 ◽  
Author(s):  
João Francisco de Castro Silveira ◽  
Cláudia Daniela Barbian ◽  
Leandro Tibiriçá Burgos ◽  
Jane Dagmar Pollo Renner ◽  
Dulciane Nunes Paiva ◽  
...  

ABSTRACT Objective: To verify the association between screen time and cardiorespiratory fitness with the presence of metabolic risk in schoolchildren in an isolated and clustered manner. Methods: Cross-sectional study with 1.200 schoolchildren from Santa Cruz do Sul-RS. Screen time and cardiorespiratory fitness were evaluated. The continuous metabolic risk score was calculated by summing the Z score of the waist circumference, systolic blood pressure, glucose, triglycerides, total cholesterol, low-density lipoprotein (LDL-C) and high-density lipoprotein (HDL-C). Results: Children (34.3%) and adolescents (48.2%) had high screen time, while 44.3% of the children and 53.3% of the adolescents were unfit in relation to cardiorespiratory fitness. Regarding the relation of screen time/cardiorespiratory fitness, 14.7% of the children and 26.9% of the adolescents presented high screen time and low levels of cardiorespiratory fitness. The presence of metabolic risk was shown in children (17.1%) and adolescents (14.7%). The presence of metabolic risk was directly associated with low levels of cardiorespiratory fitness in children and adolescents. When analyzed in clusters, the metabolic risk in children was 11% more prevalent in subjects with low screen time/unfit and 12% in subjects with high screen time/unfit, whereas in adolescents, the prevalence of metabolic risk was also higher in those with low screen time/unfit (8%) and high screen time/unfit (7%). Conclusions: The presence of metabolic risk in children and adolescents was associated with low levels of cardiorespiratory fitness, independent of screen time, in an isolated or clustered manner.


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