scholarly journals Lifestyle intervention enhances high-density lipoprotein function among patients with metabolic syndrome only at normal low-density lipoprotein cholesterol plasma levels

2016 ◽  
Vol 10 (5) ◽  
pp. 1172-1181 ◽  
Author(s):  
Boris Hansel ◽  
Dominique Bonnefont-Rousselot ◽  
Alexina Orsoni ◽  
Randa Bittar ◽  
Philippe Giral ◽  
...  
2021 ◽  
Vol 57 (4) ◽  
pp. 437-443
Author(s):  
Sergej Nadalin ◽  
Alena Buretić-Tomljanović ◽  
Lena Zatković ◽  
Dalibor Karlović ◽  
Vjekoslav Peitl ◽  
...  

Cilj: Porod carskim rezom kontinuirano se povezuje s povećanim rizikom za pojavu komponenti metaboličkog sindroma kod ispitanika u općoj populaciji, dok su podatci za bolesnike sa shizofrenijom manjkavi i proturječni. U ovom smo istraživanju ispitali pridonosi li, i u kojoj mjeri, vrsta poroda vrijednostima indeksa tjelesne mase (ITM) te koncentracijama lipida i glukoze u plazmi na dvjema skupinama bolesnika sa shizofrenijom koji ne primaju terapiju: u bolesnika s prvom epizodom shizofrenije (N = 48) i u kroničnih bolesnika neadherentnih prema antipsihotičnoj terapiji (N = 83). Ispitanici i metode: Podatci o vrsti poroda i neadherentnosti prema antipsihotičnoj terapiji prikupljeni su iz autoanamneze i heteroanamneze. Određivanje ukupnog kolesterola, LDL kolesterola (engl. low density lipoprotein cholesterol), HDL kolesterola (engl. high density lipoprotein cholesterol), triglicerida i glukoze u plazmi realizirano je nakon 12-satnog gladovanja. Rezultati: Učestalost poroda carskim rezom iznosila je 8,4 %. Koncentracije triglicerida i vrijednosti ITM-a bile su značajno više u bolesnika rođenih carskim rezom u odnosu na bolesnike rođene vaginalnim porodom: 1,5 (0,6 – 4,3) vs. 1,1 (0,3 – 3,1); z = -2,21, p = 0,027. Vrsta poroda pridonosi s približno 3,3 % varijabilnosti koncentracija triglicerida. Zaključci: Naši rezultati upućuju da vrsta poroda utječe u manjoj mjeri na koncentracije triglicerida u plazmi u bolesnika sa shizofrenijom koji nisu na terapiji antipsihotičnim lijekovima. Porod carskim rezom predstavlja rizični čimbenik za povišene koncentracije triglicerida.


2005 ◽  
Vol 62 (11) ◽  
pp. 811-819
Author(s):  
Aleksandra Jovelic ◽  
Goran Radjen ◽  
Stojan Jovelic ◽  
Marica Markovic

Background/Aim. C-reactive protein is an independent predictor of the risk of cardiovascular events and diabetes mellitus in apparently healthy men. The relationship between C-reactive protein and the features of metabolic syndrome has not been fully elucidated. To assess the cross-sectional relationship between C-reactive protein and the features of metabolic syndrome in healthy people. Methods. We studied 161 military pilots (agee, 40?6 years) free of cardiovascular disease, diabetes mellitus and active inflammation on their regular annual medical control. Age, total cholesterol, low density lipoprotein cholesterol, high density lipoprotein cholesterol, triglycerides, fasting glucose, glycosylated hemoglobin, blood pressure, smoking habit, waist circumference and body mass index were evaluated. Plasma C-reactive protein was measured by the immunonephelometry (Dade Behring) method. Metabolic syndrome was defined according to the National Cholesterol Education Program Expert Panel. Results. The mean C-reactive protein concentrations in the subjects grouped according to the presence of 0, 1, 2 and 3 or more features of the metabolic syndrome were 1.11, 1.89, 1.72 and 2.22 mg/L, respectively (p = 0.023) with a statistically, significant difference between those with 3, and without metabolic syndrome (p = 0.01). In the simple regression analyses C-reactive protein did not correlate with the total cholesterol, low density lipoprotein cholesterol, high density lipoprotein cholesterol, body mass index and blood pressure (p > 0.05). In the multiple regression analysis, waist circumference (? = 0.411, p = 0.000), triglycerides to high density lipoprotein cholesterol ratio (? = 0.774, p = 0.000), smoking habit (? = 0.236, p = 0.003) and triglycerides (? = 0.471, p = 0.027) were independent predictors of C-reactive protein. Conclusions. Our results suggested a cross-sectional independent correlation between the examined cardiovascular risk factors as the predominant features of metabolic syndrome and C-reactive protein in the group of apparently healthy subjects. The lack of correlation of C-reactive protein with the total cholesterol and low density lipoprotein cholesterol in our study may suggest their different role in the process of atherosclerosis and the possibility to determine C-reactive protein in order to identify high-risk subjects not identified with cholesterol screening.


1997 ◽  
Vol 92 (5) ◽  
pp. 473-479 ◽  
Author(s):  
Gregory D. Sloop ◽  
David W. Garber

1. Increased blood or plasma viscosity has been observed in almost all conditions associated with accelerated atherosclerosis. Cognizant of the enlarging body of evidence implicating increased viscosity in atherogenesis, we hypothesize that the effects of low-density lipoprotein and high-density lipoprotein on blood viscosity correlate with their association with risk of atherosclerosis. 2. Blood viscometry was performed on samples from 28 healthy, non-fasting adult volunteers using a capillary viscometer. Data were correlated with haematocrit, fibrinogen, serum viscosity, total cholesterol, high-density lipoprotein-cholesterol, triglycerides and calculated low-density lipoprotein-cholesterol. 3. Low-density lipoprotein-cholesterol was more strongly correlated with blood viscosity than was total cholesterol (r = 0.4149, P = 0.0281, compared with r = 0.2790, P = 0.1505). High-density lipoprotein-cholesterol levels were inversely associated with blood viscosity (r = −0.4018, P = 0.0341). 4. To confirm these effects, viscometry was performed on erythrocytes, suspended in saline, which had been incubated in plasma of various low-density lipoprotein/high-density lipoprotein ratios. Viscosity correlated directly with low-density lipoprotein/high-density lipoprotein ratio (n = 23, r = 0.8561, P < 0.01). 5. Low-density lipoprotein receptor occupancy data suggests that these effects on viscosity are mediated by erythrocyte aggregation. 6. These results demonstrate that the effects of low-density lipoprotein and high-density lipoprotein on blood viscosity in healthy subjects correlate with their association with risk of atherosclerosis. These effects on viscosity may play a role in atherogenesis by modulating the dwell or residence time of atherogenic particles in the vicinity of the endothelium.


1977 ◽  
Vol 23 (7) ◽  
pp. 1238-1244 ◽  
Author(s):  
P N Demacker ◽  
H E Vos-Janssen ◽  
A P Jansen ◽  
A van 't Laar

Abstract We evaluated the dual-precipitation method for quantitative measurement of lipoproteins as described by Wilson and Spiger [J. Lab. Clin. Med. 82, 473 (1973)] for normo- and hyperlipemic sera, by comparison with the results obtained with ultracentrifugation. If serum with an above-normal triglyceride concentration is analyzed, the very-low-density lipoprotein cholesterol value obtained with the precipitation method is usually too low. For measurement of high-density lipoprotein cholesterol the ultracentrifugation and precipitation procedures give comparable results, but the latter method is preferred because sinking pre-beta-lipoproteins present in the high-density lipoprotein fraction isolated by means of the ultracentrifuge may result in falsely high values for cholesterol in that fraction. Therefore, at least for the determination of very-low-density lipoprotein cholesterol in hyperlipemic serum, the use of an ultracentrifuge remains necessary. Because few laboratories have an ultracentrifuge at their disposal, it seemed important to look at the stability of sera in view of the forwarding of samples. Also, a way of increasing the efficiency of the ultracentrifuge was studied. Sera can be stored for a week at 4 degrees C or for 54 h at room temperature without noticeable effect on lipoprotein values. Moreover, reliable values can be obtained with an ultracentrifugation time of 8 h (0.8 X 10(8) g-min).


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