Effect of the periparturient period on serum lipid and cholesterol lipoprotein concentrations in goats (Capra hircus)

2011 ◽  
Vol 59 (4) ◽  
pp. 445-454 ◽  
Author(s):  
Ewa Skotnicka ◽  
Zbigniew Muszczyński ◽  
Maria Suska

Blood samples were taken from 12 goats during the periparturient period (4 and 1 weeks before and 2, 10 and 30 days after delivery), and from 10 nonpregnant goats. The following variables were determined: total lipids (TL), triacylglycerol (TG), total cholesterol (TCH) and high-density lipoprotein (HDL) cholesterol and low-density lipoprotein (LDL) cholesterol fractions. One week before delivery TL (2.32 ± 0.12 g/l, P ≤ 0.05), TG (0.32 ± 0.16 mmol/l, P ≤ 0.001) and TCH concentrations (1.65 ± 0.42 mmol/l, P ≤ 0.05) were significantly increased as compared to non-pregnant goats (2.08 ± 0.28 g/l, 0.15 ± 0.05 mmol/l, 1.38 ± 0.19 mmol/l, respectively). After delivery, the concentrations of TL, TG, TCH and HDL decreased significantly. The lowest TG concentration was observed 2 days after delivery (0.18 ± 0.02 mmol/l), while TL (1.73 ± 0.21 g/l), TCH (0.95 ± 0.21 mmol/l) and HDL (0.74 ± 0.16 mmol/l) reached the lowest level 10 days after delivery. Two days after delivery a significant increase of LDL concentration was observed (0.38 ± 0.04 mmol/l); however, ten days after delivery a threefold decrease was shown in the LDL concentration (0.12 ± 0.04 mmol/l). A month after delivery all the variables studied reached levels similar to those measured in non-pregnant goats.

1986 ◽  
Vol 55 (02) ◽  
pp. 173-177 ◽  
Author(s):  
K Desai ◽  
J S Owen ◽  
D T Wilson ◽  
R A Hutton

SummaryPlatelet aggregation, platelet lipid composition and plasma lipoprotein concentrations were measured each week in a group of seventeen alcoholics, without overt liver disease, for one month, following acute, total alcohol withdrawal. The platelets were initially hypoaggregable but, within 1-2 weeks of cessation of drinking, they became hyperaggregable and then gradually returned towards normal values. Hyperaggregability could not be explained by increases in either the cholesterol or the arachidonic acid content of the platelets. Plasma very-low-density lipoprotein cholesterol levels remained high throughout the study, but the initially raised levels of high-density lipoprotein (HDL) cholesterol fell by 26%. Low-density lipoprotein (LDL) cholesterol concentration rose by 10% after two weeks of withdrawal but then returned to about the starting level. The resulting changes in the plasma LDL-cholesterol: HDL-cholesterol ratio, which had increased by more than 50% after two weeks of abstinence, essentially paralleled the time course of enhanced platelet reactivity in all but four of the alcoholics. These findings suggest that alterations in plasma lipoprotein concentrations during acute alcohol withdrawal may be a contributory factor to the haemostatic disorders present in such patients.


2008 ◽  
Vol 13 (2) ◽  
pp. 97-100
Author(s):  
Listijani Suhargo

The purpose of this research was conducted to evaluate the effects of daun wungu extracts to decrease total cholesterol, LDL (Low Density Lipoprotein) and HDL (High Density Lipoprotein) cholesterol of ovariectomized mice. This research used 24 ovariectomized mice and 8 normal mice. The ovariectomized mice were grouped in 3 groups for K1 (the treatment with aquadest, 0.05 ml), K2 (the treatment with fish oil, 0.05 ml) and P (the treatment with daun wungu extracts, 0.5 mg in 0.05 ml fish oil). All treatments were done for 20 days. At the end of the treatments, the blood (0.5 ml) was taken from cardiac by tuberculin disposable syringe. And then with fotometry, serum total, LDL and HDL cholesterol were measured. The result of this research showed that daun wungu extracts (0.5 mg in 0.05 ml fish oil) could not decrease HDL cholesterol, but it could decrease total and LDL cholesterol of blood serum in ovariectomized mice.


2017 ◽  
Vol 4 (1) ◽  
pp. 39-44
Author(s):  
Ni Made Restina Juliani ◽  
I Putu Oka Dharmawan ◽  
Putu Ayu Parwati

Introduction: Low Density Lipoprotein (LDL) is a type of low-density lipoprotein and the most widely transported cholesterol in the body. Increased levels of LDL in the body can be affected by genetics, age, gender, obesity, physical activity, lifestyle, drug consumption and smoking. Substances in a cigarette can cause an increase of LDL levels. Increased of LDL cholesterol levels can cause Coronary Heart Disease (CHD). The purpose of this research is to know the description of Low Density Lipoprotein (LDL) levels on smoker and non-smoker adolescent in Buyan Hamlet, Pancasari Village, Sukasada District, Buleleng Bali. Method: The type of this research is descriptive. This research was conducted in April-May 2017, which used fasting blood samples of 42 respondents. Result: From the average result of LDL level in smoker adolescent that is 134,91 mg/dL higher than the average of LDL level in non-smoker adolescent that is 74,90 mg/dL. The result of LDL cholesterol levels was determined by 21 smoker adolescent respondents with the close to optimal category (100-129 mg/dL) as many as 9 people (42,8%), and 12 people (57,3%) with worry category (130-159 mg/dL). Whereas in 21 non-smoker adolescent respondents obtained  result of LDL cholesterol level test with optimal category (<100 mg/dL) counted 18 people (87,71%) and 3 person (14,30%) with close to optimal category (100-129 mg/dL). Discussion: Based on the results of this research can be concluded that in smoker adolescent obtained LDL levels with close to optimal category and worrying whereas in non-smoker adolescents obtained LDL levels in the optimal category and close to optimal.


1996 ◽  
Vol 42 (4) ◽  
pp. 524-530 ◽  
Author(s):  
R Siekmeier ◽  
P Wülfroth ◽  
H Wieland ◽  
W Gross ◽  
W März

Abstract We analyzed the susceptibility of low-density lipoproteins (LDL) to oxidation in 17 healthy smokers (43.3 +/- 16.8 pack-years) and 19 healthy nonsmokers, matched for age (smokers: 52 +/- 7 years; nonsmokers: 53 +/- 7 years), gender, and relative body mass. Cholesterol, triglycerides, LDL cholesterol, HDL cholesterol, and apolipoprotein (apo) B were not different between smokers and nonsmokers; apo A-I was slightly lower in smokers (one-tailed P = 0.066). To study whether LDL from smokers were prone to in vitro oxidation than LDL from nonsmokers, we measured the time kinetics of diene formation and the production of malondialdehyde during oxidation of LDL in vitro. In smokers and nonsmokers, respectively, the mean (+/-SD) lag times (tinh) of diene formation were 111 +/- 26 and 100 +/- 27 min, the peak rates of diene formation (Vmax) were 5.99 +/- 2.34 and 6.34 +/- 2.30 mmol x min-1 x g-1, and the amounts of dienes produced during the propagation phase (dmax) were 250 +/- 264 and 248 +/- 56 mmol x g-1. Neither the malondialdehyde content of LDL (measured as thiobarbituric acid-reactive substances) before oxidation nor the amount of malondialdehyde generated during oxidation (smokers: 57.0 +/- 14.2 micromol x g-1; nonsmokers: 63.2 +/- 15.2 micromol x g-1 indicated any statistically significant effect of smoking. When nonsmokers and smokers were considered together, the amount of malondialdehyde generated during oxidation correlated with age (nonparametric rs = 0.405), body mass index (r2 = 0.573), and concentrations of apo B (rs = 0.480), cholesterol (rs = 0.448), triglycerides (rs = 0.436), and LDL cholesterol (rs = 0.398). Our data show that smoking is not associated with increased oxidizability of LDL in healthy men and women at ages 42-63 years.


1983 ◽  
Vol 21 (19) ◽  
pp. 75-76

Bezafibrate (Bezalip - MCP), an analogue of clofibrate (Atromid-S), has been marketed in the UK for two years. Like clofibrate 1 it lowers both triglyceride and total cholesterol levels in plasma. The reduction is usually in low-density lipoprotein (LDL) cholesterol, whilst high-density lipoprotein (HDL) cholesterol rises. Like other lipid-lowering drugs, it should be used only where appropriate dietary measures have failed and where the hyperlipidaemia poses a significant risk.2


2014 ◽  
Vol 32 (7) ◽  
pp. 1328-1334 ◽  
Author(s):  
Motunrayo G Akande ◽  
Yusuf O Aliu ◽  
Suleiman F Ambali ◽  
Joseph O Ayo

The aim of this study was to investigate the effects of taurine (TA) on serum lipid profiles following chronic coadministration of chlorpyrifos (CP) and lead acetate (Pb) in male Wistar rats. Fifty rats randomly distributed into five groups served as subjects. Distilled water (DW) was given to DW group, while soya oil (SO; 1 mL kg−1) was given to SO group. The TA group was treated with TA (50 mg kg−1). The CP + Pb group was administered sequentially with CP (4.25 mg kg−1; 1/20th median lethal dose (LD50)) and Pb at 233.25 mg kg−1 (1/20th LD50), while the TA + CP + Pb group received TA (50 mg kg−1), CP (4.25 mg kg−1), and Pb (233.25 mg kg−1) sequentially. The treatments were administered once daily by oral gavage for 16 weeks. The rats were euthanised, and the blood samples were collected at the termination of the study. Sera obtained from the blood samples were analyzed for total cholesterol, high-density lipoprotein cholesterol, triglycerides, and malondialdehyde, and also the activities of serum antioxidant enzymes including superoxide dismutase, catalase and glutathione peroxidase were analyzed. The low-density lipoprotein cholesterol, very-low-density lipoprotein cholesterol, and atherogenic index were calculated. The results showed that CP and Pb induced alterations in the serum lipid profiles and evoked oxidative stress. TA alleviated the disruptions in the serum lipid profiles of the rats partially by mitigating oxidative stress. It was concluded that TA may be used for prophylaxis against serum lipid disorders in animals that were constantly co-exposed to CP and Pb in the environment.


Author(s):  
Nishith Patel ◽  
Bernard F Rocks ◽  
S Andrew Iversen

A competitive silver-enhanced gold-labelled immunoassay has been developed for the direct measurement of low density lipoprotein (LDL) in whole blood. Immobilized LDL and sample LDL compete for added antibody. Quantitation of the bound antibody/antigen complex is achieved by the addition of gold-labelled antiimmunoglobulin G followed by enhancement of absorbance by addition of silver ions. Whole-blood samples from fasting patients were assayed directly for LDL by the procedure and the corresponding plasma samples were assayed for total cholesterol, high density lipoprotein and triglycerides followed by the indirect calculation of LDL cholesterol. The correlation between the two methods was good (r = 0·82) and the SEGLISA exhibited good precision.


1981 ◽  
Vol 60 (1) ◽  
pp. 81-86 ◽  
Author(s):  
V. J. Wass ◽  
R. J. Jarrett ◽  
V. Meilton ◽  
M. K. Start ◽  
M. Mattock ◽  
...  

1. Changes in serum total and lipoprotein fraction triglyceride and cholesterol levels were studied in 24 adults on home haemodialysis. Half the patients were randomly allocated to a low cholesterol (mean 200 mg/day), fat-modified diet (mean polyunsaturated/saturated fat ratio of 1.0 with a mean of 43% of the total energy content derived from fat). 2. Before dietary manipulation, triglyceride levels in all lipoprotein fractions were significantly higher (P < 0.02) than in a control group of age and sex matched normal subjects. Total cholesterol, very-low-density-lipoprotein (VLDL) and low-density-lipoprotein (LDL) cholesterol were also significantly raised (P < 0.02), but high-density-lipoprotein (HDL) cholesterol was normal. In the patients on a fat-modified diet triglyceride levels did not alter in any of the lipoprotein fractions. Total cholesterol and LDL cholesterol levels fell significantly into the normal range (P < 0.002 and < 0.001 respectively) but VLDL and HDL cholesterol levels did not change. 3. Hypertriglyceridaemia is the most common lipid abnormality in patients with renal failure and a long-term fat-modified diet is, therefore, of limited therapeutic importance in these patients unless there is a low HDL/LDL cholesterol ratio.


Author(s):  
K Azad ◽  
S Court ◽  
J M Parkin ◽  
M F Laker ◽  
K G M M Alberti

Serum total cholesterol, high-density lipoprotein (HDL) cholesterol, triglyceride, apolipoprotein (apo) A-I and apoB concentrations were estimated and low-density lipoprotein (LDL) cholesterol levels were calculated in 132 children aged 11·4–17·3 years. The effect of feeding was investigated by estimating postprandial values and also by studying the effects of a test meal. The distribution of all data was consistent with Gaussian apart from triglycerides which was log normal. Overall fasting values were [mean (standard deviation; SD)] cholesterol 4·5 (0·8) mmol/L, HDL cholesterol 1·5 (0·4) mmol/L, LDL cholesterol 2·6 (0·8) mmol/L, apoA-I 1·5 (0·3) g/L, apoB 1·0 (0·4) g/L and triglycerides 0·76 (0·38–1·51) mmol/L, the values for triglycerides being mean (95% confidence intervals). Girls had higher triglycerides than boys [0·82 (0·43–1·54) versus 0·70 (0·36–1·33)] and different effects of age on lipids were found, HDL cholesterol being negatively correlated with age in boys ( r= −0·37; P<0·001), but not in girls, and apoA-I being negatively correlated with age in boys ( r= −0·31; P=0·006), but positively correlated with age in girls ( r = 0·32; P = 0·008). Triglycerides rose and HDL cholesterol fell following feeding and inconsistent effects were seen on apoA-I and apoB.


2020 ◽  
Vol 26 (4) ◽  
pp. 399-406
Author(s):  
Ruolin Li ◽  
Shumin Yang ◽  
Rufei Gao ◽  
Yin Deng ◽  
Jiahuan Liu ◽  
...  

Objective: To investigate whether serum bisphenol A (BPA) concentration is related to the occurrence of dyslipidemia. Methods: A total of 574 adults were enrolled at baseline and followed up for 5 years. Concentrations of serum BPA, triglycerides (TGs), low-density lipoprotein (LDL) cholesterol, and high-density lipoprotein (HDL) cholesterol were measured. Dyslipidemia was defined as the existence of one or more of the following conditions: high-LDL-cholesterolemia (LDL ≥140 mg/dL), hypertriglyceridemia (TGs ≥150 mg/dL), or low-HDL-cholesterolemia (HDL <40 mg/dL). Participants were stratified into tertiles according to low, median, and high baseline serum BPA levels. Multivariable linear and logistic regression models were used. Data from baseline and follow-up were used for cross-sectional and longitudinal analyses, respectively. Results: In the cross-sectional analysis, compared to subjects in the low BPA tertile, those in the high BPA tertile showed a higher level of LDL cholesterol (108.1 ± 24.4 mg/dL versus 119.5 ± 26.9 mg/dL; P<.05) and a lower level of HDL cholesterol (46.2 ± 11.7 mg/dL versus 39.5 ± 7.5 mg/dL; P<.05). In multivariable linear regression models, Z-transformed BPA was positively associated with LDL cholesterol (β= 0.13, P = .002) and negatively associated with HDL cholesterol (β= −0.28; P<.001). After cross-sectionally adjusting for confounders, subjects in higher BPA exposure was associated with a higher prevalence of low-HDL-cholesterolemia. Longitudinally, in subjects without low-HDL-cholesterolemia at baseline, each SD increment in baseline BPA was associated with a higher incidence of low-HDL-cholesterolemia after adjustment for confounders (odds ratio [95% confidence interval; CI] 2.76, 95% CI 1.21, 6.29). Conclusion: Cross-sectionally, higher BPA exposure is associated with a higher prevalence of low-HDL-cholesterolemia. Longitudinally, baseline BPA is an independent predictor of the 5-year incidence of low-HDL-cholesterolemia. Abbreviations: BMI = body mass index; BPA = bisphenol A; CI = confidence interval; CVD = cardiovascular disease; EIMDS = environment, inflammation and metabolic diseases study; HDL = high density lipoprotein; LDL = low density lipoprotein; OR = odds ratio; PPAR = peroxisome proliferator-activated receptor; SBP = systolic blood pressure; TG = triglyceride; Z-BPA = Z-transformed bisphenol A


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