scholarly journals VLDL cholesterol

2020 ◽  
Author(s):  
Keyword(s):  
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.


2020 ◽  
Vol 76 (23) ◽  
pp. 2725-2735 ◽  
Author(s):  
Mie Balling ◽  
Shoaib Afzal ◽  
Anette Varbo ◽  
Anne Langsted ◽  
George Davey Smith ◽  
...  

2016 ◽  
Vol 116 (8) ◽  
pp. 1394-1401 ◽  
Author(s):  
Shahnaz Ahmadi ◽  
Mehri Jamilian ◽  
Maryam Tajabadi-Ebrahimi ◽  
Parvaneh Jafari ◽  
Zatollah Asemi

AbstractTo the best of our knowledge, data on the effects of synbiotic supplementation on markers of insulin metabolism and lipid concentrations in patients with gestational diabetes mellitus (GDM) are scarce. The aim of the current study was to determine the effects of synbiotic supplementation on markers of insulin metabolism and lipid profiles in GDM patients. In total, seventy patients with GDM aged 18–40 years were assigned to two groups – the synbiotic group (n 35) and the placebo group (n 35) – in this randomised, double-blind, placebo-controlled trial. Patients in the synbiotic group received a daily capsule that contained three viable and freeze-dried strains: Lactobacillus acidophilus, Lactobacillus casei and Bifidobacterium bifidum (2×109 colony-forming units/g each) plus 800 mg inulin for 6 weeks. Fasting blood samples were collected at the beginning and week 6 to quantify related markers. After 6 weeks of intervention, compared with the placebo, synbiotic supplementation led to a significant decrease in serum insulin levels (−1·5 (sd 5·9) v. +4·8 (sd 11·5) µIU/ml, P=0·005), homoeostatic model assessment for insulin resistance (−0·4 (sd 1·3) v. +1·1 (sd 2·7), P=0·003) and homoeostatic model assessment for β cell function (−5·1 (sd 24·2) v. +18·9 (sd 45·6), P=0·008) and a significant increase in quantitative insulin sensitivity check index (+0·01 (sd 0·01) v. −0·007 (sd 0·02), P=0·02). In addition, synbiotic intake significantly decreased serum TAG (−14·8 (sd 56·5) v. +30·4 (sd 37·8) mg/dl, P<0·001) and VLDL-cholesterol concentrations (−3·0 (sd 11·3) v. +6·1 (sd 7·6) mg/dl, P<0·001) compared with the placebo. Overall, the results of this study demonstrate that taking synbiotic supplements for 6 weeks among patients with GDM had beneficial effects on markers of insulin metabolism, TAG and VLDL-cholesterol concentrations.


Author(s):  
Sital Moorjani ◽  
Daniel Gaudet ◽  
Claude Laberge ◽  
Marie Christine Thibault ◽  
Jean Mathieu ◽  
...  

ABSTRACT:Plasma lipid, lipoprotein levels and apolipoprotein apo E phenotypes were determined in 70 patients with myotonic dystrophy (MyD) and 81 controls. Marked differences were noticed in the apo E phenotype frequencies between the two groups. Plasma triglycerides and VLDL cholesterol were higher in MyD than controls, but only the latter was related to differences in the apo E phenotypes between two groups. Accordingly, the ratio of VLDL cholesterol/plasma triglycerides was increased significantly in MyD, suggesting accumulation of intermediary density particles due to lower affinity of E2 containing lipoproteins for lipoprotein cell receptors. The LDL cholesterol concentration was lower in MyD than controls and was related to differences in the apo E phenotype frequencies between the two groups. These results indicate increased removal of LDL particles in the apo E2 phenotypes, perhaps due to upregulation of LDL (B, E) receptor activity. Plasma cholesterol and HDL cholesterol concentrations were similar in both groups. Another feature of the study was lower levels of plasma cholesterol, triglycerides, VLDL and LDL cholesterol in the homozygous E4:E4 phenotype. These results suggest increased clearance rate of both VLDL and LDL particles and support the concept that apo E4-containing lipoproteins have higher in vivo affinity for ape E and/or B, E receptors.


2012 ◽  
Vol 27 (11) ◽  
pp. 751-756 ◽  
Author(s):  
Luiz Ronaldo Alberti ◽  
Denny Fabrício Magalhães Veloso ◽  
Leonardo de Souza Vasconcellos ◽  
Andy Petroianu

PURPOSE: To assess the influence of spleen surgeries (splenectomy, presence of spleen and after conservative surgeries) on lipids metabolism. METHODS: Fifty female Wistar rats of similar weight and age were divided into five groups submitted to the following procedures: Group 1 - control, with an intact spleen; Group 2 - sham operation, Group 3 - total splenectomy; Group 4 - subtotal splenectomy, and Group 5 - total splenectomy complemented with autogenous spleen tissue implants. Four months after the interventions, serum triglycerides, total cholesterol and fractions (VLDL-cholesterol, LDL-cholesterol, HDL-cholesterol) were determined. The results for the four groups were compared by analysis of variance followed by the Tukey-Kramer test, with the level of significance set at p<0.05. RESULTS: There were no differences between groups 1, 2, 4 and 5. In the animals submitted to total splenectomy, total cholesterol (p=0.0151) and LDL-cholesterol fraction concentrations (p<0.0001) were higher, whereas HDL-cholesterol fraction concentrations were lower (p=0.0026) than those detected in the other groups. There was no difference in triglycerides (p=0.1571) or VLDL-cholesterol (p=0.2527) between groups. CONCLUSION: Splenectomy is related to changes in the lipid metabolism that are reverted by autogenous spleen tissue implants.


1996 ◽  
Vol 19 (11) ◽  
pp. 638-644 ◽  
Author(s):  
J. Bommer ◽  
E. Strohbeck ◽  
J. Goerich ◽  
M. Bahner ◽  
I. Zuna

Arteriosclerosis is a constant problem in long-term hemodialysis patients. Computer tomography of the abdominal aorta allows a well-defined and reproducible evaluation of aortosclerosis. In the cross-sectional study, aortosclerosis was significantly accelerated in 84 chronic hemodialysis patients and was comparable to the results found in 20-year older control patients without renal disease. The increase of aortosclerosis correlated significantly with age of the patient, smoking, and duration of dialysis therapy. Furthermore, increased VLDL cholesterol and decreased HDL cholesterol seem to enhance aortosclerosis in our dialysis patients. In the longitudinal study (two CT scans with a time interval of 87 ± 62.7 months) in 36 dialysis patients, progressed aortosclerosis correlated significantly with the long duration of hypertriglyceridemia, VLDL cholesterol, uric acid, and calcium phosphate products. Progression of aortosclerosis was reduced in parathyroidectomized patients. The study suggests that premature aortosclerosis is found in dialysis patients. In addition to the common risk factor of aortosclerosis, disturbed calcium phosphate and parathyroid hormone metabolism seem to enhance aortosclerosis in patients under maintenance hemodialysis.


Biologia ◽  
2015 ◽  
Vol 70 (2) ◽  
Author(s):  
Andrea Kapinová ◽  
Peter Kubatka ◽  
Peter Kružliak ◽  
Michal Mokáň ◽  
Martin Péč ◽  
...  

AbstractOn the basis of several preclinical and clinical studies, we have assumed that phytochemicals may play an important role in plasma lipid metabolism. The aim of this study was to evaluate the effects of dietary administered Chlorella pyrenoidosa, young barley and fruit peel polyphenols from Flavin7 on plasma lipid metabolism in breast cancer model in female rats. The phytopharmaceuticals were dietary administered at two different concentrations (0.3% and 3%). The administration of drugs lasted for the whole duration of the experiment (14-15 weeks) until autopsy. At the end of the experiments blood was collected from animals and serum lipid parameters were evaluated. Flavin7 in lower dose significantly decreased LDL-cholesterol and in higher dose significantly decreased triacylglycerol and VLDL-cholesterol levels. Chlorella at the higher dose significantly decreased LDL- and VLDL-cholesterol and triacylglycerol levels. Young barley significantly decreased LDL cholesterol (at the higher dose); on the other hand, a tendency of increased serum triacylglycerol and VLDLcholesterol levels was found (in both doses). Our results pointed to significant beneficial effects of fruit peel polyphenols from Flavin7 and C. pyrenoidosa on plasma lipid metabolism in female rats. Further research is needed to elucidate the health benefits of phytochemicals in whole foods.


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