Comprehensive QTL analysis of serum cholesterol levels before and after a high-cholesterol diet in SHRSP

2007 ◽  
Vol 30 (2) ◽  
pp. 95-101 ◽  
Author(s):  
Tomoji Mashimo ◽  
Hiroshi Ogawa ◽  
Zong-Hu Cui ◽  
Yuji Harada ◽  
Kohei Kawakami ◽  
...  
Keyword(s):  
Cholesterol Level ◽  
Serum Cholesterol ◽  
Qtl Analysis ◽  
Spontaneously Hypertensive Rat ◽  
Hdl Cholesterol ◽  
High Cholesterol Diet ◽  
Chromosome 15 ◽  
High Cholesterol ◽  
Before And After ◽  
Wistar Kyoto

The stroke-prone spontaneously hypertensive rat (SHRSP) showed an exaggerated response to a high-fat, high-cholesterol (HFC) diet, and the resulting reactive hypercholesterolemia was suggested to exacerbate the atherogenic process in this rat. We thus performed a quantitative trait locus (QTL) analysis on the serum cholesterol level of SHRSP before and after the HFC diet, with the final goal being the identification of the genetic mechanisms of its reactive hypercholesterolemia. Three hundred fifty-eight F2 rats between SHRSP and Wistar-Kyoto rat were employed in the study. The serum cholesterol and apoprotein E were measured before and after 2 wk of feeding with the HFC diet. Multiple QTLs for the basal cholesterol level were identified on chromosomes 1 and 5, whereas those for the postdietary cholesterol level were on chromosomes 7, 15, and 16. The cholesterol QTLs before and after HFC diet did not overlap with one another, implying that the involved metabolic processes were considerably different between the two conditions. Supporting this, VLDL and LDL cholesterol were the major components of the postdietary serum cholesterol, whereas the basal cholesterol level consisted mainly of HDL cholesterol. A substantial difference of the QTLs between males and females was observed, especially after the HFC diet. The QTL on chromosome 15 had an inverse effect on the cholesterol level, suggesting that the congenic substitution of the SHRSP fragment with that of Wistar-Kyoto rats could induce a greater cholesterol level in SHRSP. This observation is significant in establishing a new model for atherosclerosis with hypertension in rats.

scholarly journals Vitamin B12 Inhibits Progression of Hypercholesterolemia and Atherosclerosis in Rabbits Fed a High Cholesterol Diet

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Salim Abou-Khalil ◽  
Ron Poulsen ◽  
Michael B. Stemerman ◽  
Sean Moore ◽  
Misbahuddin Zafar Alavi
Keyword(s):  
Vitamin B12 ◽  
Cholesterol Level ◽  
Serum Cholesterol ◽  
Serum Cholesterol Level ◽  
Pharmacological Intervention ◽  
High Cholesterol Diet ◽  
Cholesterol Diet ◽  
High Cholesterol ◽  
Baseline Serum ◽  
Group 4

The present study was undertaken to examine the effect of vitamin B12 on serum cholesterol levels and development of aortic atherosclerosis in New Zealand White male rabbits fed a high cholesterol diet. Twenty rabbits were divided into 4 groups matched for their baseline serum cholesterol values. Groups 1 and 2 received a normal diet, whereas groups 3 and 4 had cholesterol mixed with their chow. After 5 weeks, the serum cholesterol of groups 3 and 4 increased by approximately 12 fold compared to groups 1 and 2. At that point, vitamin B12 was administered in the drinking water (1000 micrograms/l) to rabbits in groups 2 and 4. At week 8, the Vitamin B12 dose was increased to 2400 micrograms/l for group 4. At 12 weeks into the study, rabbits in group 4 (high cholesterol diet plus vitamin B12) had a serum cholesterol level of 919 +/- 270 mg/dl while those of group 3 (high cholesterol diet) had a serum cholesterol level of 1417 +/- 250 mg/dl. At the end of the study, rabbit aortas were excised, fixed, and stained with fat-red-B, a dye for lipid. Comparison of the aortas of rabbits that received the lipid rich diet revealed that animals given additional vitamin B12 had significantly decreased surface area of fat deposition. These data suggest the potential role for vitamin B12 as a safe and inexpensive pharmacological intervention for the modification of the progression of human atherosclerosis.

scholarly journals PEMBERIAN EKSTRAK ETANOL BUAH BUNCIS (Phaseolus vulgaris L.) UNTUK MENURUNKAN KOLESTEROL TOTAL, Low Density Lipoprotein (LDL) DAN MENINGKATKAN High Density Lipoprotein (HDL) PADA TIKUS WISTAR DIET TINGGI LEMAK

Jurnal Kimia ◽  
2016 ◽  
Author(s):  
Sri Wahjuni ◽  
Ni Luh Rustini ◽  
Putu Yuliantari
Keyword(s):  
Total Cholesterol ◽  
Cholesterol Level ◽  
Density Lipoprotein ◽  
Ethanol Extract ◽  
Hdl Cholesterol ◽  
Blood Cholesterol ◽  
High Cholesterol Diet ◽  
Cholesterol Diet ◽  
High Cholesterol ◽  
Cholesterol Levels

Excessive fat consumption can increase blood cholesterol level. Phytosterol composition in the plant can decrease blood cholesterol level. One of the plants that contain phytosterol is beans. This study was to prove the effect of antihypercholesterol the ethanol extract of the beans (Phaseolus vulgaris L.) with variety of doses of 50 mg/Kg BW; 100 mg/Kg BW and 150 mg/Kg BW in male Wistar rats with high fat level condition. Subjects of this study were 24 Wistar rats divided into 6 groups randomly with posttest control group study design. First group as negative control, second group as positive control, and the third (high cholesterol diet and ethanol extract in dose of 50 mg/kg,bw), fourth ( high cholesterol diet and ethanol extractin dose of 100 mg/kg,bw), fifth ( high cholesterol diet and ethanol extract in dose of 150 mg/kg,bw),  sixth (high cholesterol diet and simvastatin drug). The data was analyzed with ANOVA Tukey test. The result of this study shows total cholesterol levels decrease 23,88%; 30,14%; 35,82%. Cholesterol LDL levels decrease 38,09%; 52,38%; 61,35%. Cholesterol HDL levels increase 21,86%; 56,56%; 63,84%. Dose variant on this study giving the best result to decrease total cholesterol levels and LDL was 150 mg/Kg BW. Furthermore, 100 mg/Kg BW dose gave the best result to increase HDL cholesterol level. Based on the results it can be suggested that beans ethanol extract is able to decrease total cholesterol level, LDL and increase HDL cholesterol levels.  

scholarly journals Banana Blossom (Musa acuminate Colla) Incorporated Experimental Diets Modulate Serum Cholesterol and Serum Glucose Level in Wistar Rats Fed with Cholesterol

Cholesterol ◽  
2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Ruvini Liyanage ◽  
Saranya Gunasegaram ◽  
Rizliya Visvanathan ◽  
Chathuni Jayathilake ◽  
Pabodha Weththasinghe ◽  
...  
Keyword(s):  
Glucose Level ◽  
Serum Cholesterol ◽  
Wistar Rats ◽  
Hdl Cholesterol ◽  
Basal Diet ◽  
Serum Glucose ◽  
High Cholesterol Diet ◽  
High Cholesterol ◽  
Lower Serum ◽  
Faecal Weight

Hypocholesterolaemic and hypoglycaemic effect of banana blossom were studied in high-cholesterol fed rats. Experimental groups were fed for 4 weeks, with casein as the basal diet (CN), in comparison with two diets containing 0.5% cholesterol (CD) and 0.5% cholesterol + 21% banana blossom powder (CDB). Serum total cholesterol, non-HDL-cholesterol level, and serum glucose concentrations were lower in CDB fed group compared with CD fed group. Lower serum cholesterol and glucose level (P<0.05) in CDB fed group were followed by higher faecal weight, caecal weight, caecal Lactobacilli, and Bifidobacteria population in CDB fed group compared to CD diet fed group. Lower serum AST level in banana blossom fed rats showed the reduction in oxidative stress induced by high cholesterol diet. Based on these data, it could be speculated that banana blossom incorporated experimental diets may modulate the hypocholesterolaemic and hypoglycaemic responses in Wistar rats.

The effect of cranberry consumption on lipid metabolism and inflammation in human apo A-I transgenic mice fed a high-fat and high-cholesterol diet

2020 ◽  
pp. 1-8
Author(s):  
Christian Caceres ◽  
Mi-Bo Kim ◽  
Minkyung Bae ◽  
Tho X. Pham ◽  
Yoojin Lee ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Lipid Metabolism ◽  
Soleus Muscle ◽  
Hdl Cholesterol ◽  
High Cholesterol Diet ◽  
Cholesterol Diet ◽  
High Cholesterol ◽  
High Fat ◽  
Expression Of Genes ◽  
Hdl Metabolism

Abstract Lipid metabolism and inflammation contribute to CVD development. This study investigated whether the consumption of cranberries (CR; Vaccinium macrocarpon) can alter HDL metabolism and prevent inflammation in mice expressing human apo A-I transgene (hApoAITg), which have similar HDL profiles to those of humans. Male hApoAITg mice were fed a modified American Institute of Nutrition-93M high-fat/high-cholesterol diet (16 % fat, 0·25 % cholesterol, w/w; n 15) or the high-fat/high-cholesterol diet containing CR (5 % dried CR powder, w/w, n 16) for 8 weeks. There were no significant differences in body weight between the groups. Serum total cholesterol, non-HDL-cholesterol and TAG concentrations were significantly lower in the control than CR group with no significant differences in serum HDL-cholesterol and apoA-I. Mice fed CR showed significantly lower serum lecithin–cholesterol acyltransferase activity than the control. Liver weight and steatosis were not significantly different between the groups, but hepatic expression of genes involved in cholesterol metabolism was significantly lower in the CR group. In the epididymal white adipose tissue (eWAT), the CR group showed higher weights with decreased expression of genes for lipogenesis and fatty acid oxidation. The mRNA abundance of F4/80, a macrophage marker and the numbers of crown-like structures were less in the CR group. In the soleus muscle, the CR group also demonstrated higher expression of genes for fatty acid β-oxidation and mitochondrial biogenesis than those of the control. In conclusion, although CR consumption elicited minor effects on HDL metabolism, it prevented obesity-induced inflammation in eWAT with concomitant alterations in soleus muscle energy metabolism.

Effect of feeding synbiotic products on the serum cholesterol, HDL cholesterol and non- HDL cholesterol level of albino rats

2018 ◽  
Author(s):  
Rakesh Kumar ◽  
Binita Rani ◽  
Sonia Kumari ◽  
A K Jha
Keyword(s):  
Total Cholesterol ◽  
Cholesterol Level ◽  
Serum Cholesterol ◽  
Total Cholesterol Level ◽  
Hdl Cholesterol ◽  
Blood Cholesterol ◽  
Control Group ◽  
Albino Rats ◽  
Therapeutic Benefits ◽  
Effect Of Feeding

Considering the excellent bio-therapeutic benefits of Lactobacillus and Bifidobacterium, this study exploited the probiotic characteristics of Lactobacillus acidophilus-015, Lactobacillus casei-297 and Bifidobacterium bifidum-229 strains with natural prebiotic substances viz. banana powder, malto-dextrin and honey to produce synbiotic food formulations and to study the effect of feeding their on the cholesterol level (mg/dl) of albino rats. On the basis of the preliminary investigation, synbiotic products with 2% banana powder, with 2% malto-dextrin, with 3% honey and synbiotic product with 2% each of, banana powder and malto-dextrin and 1% of honey were selected for the investigation of the total cholesterol, HDL-cholesterol and non-HDL cholesterol. The products showed a significant decrease in total cholesterol level, however the control group receiving the cholesterol rich laboratory diet showed a significant increase (P LESS THEN 0.01) in the total cholesterol after 45 days of feeding. There was 25.81 to 45.05% reduction of serum cholesterol was observed in case of feeding synbiotic formulations. Increase in the HDL-cholesterol and decrease in the non-HDL cholesterol were also significant. Therefore, synbiotic formulation with all these three natural prebiotic have enhanced ability to decreased down the blood cholesterol level.

scholarly journals Posttranslational mechanisms associated with reduced NHE3 activity in adult vs. young prehypertensive SHR

2010 ◽  
Vol 299 (4) ◽  
pp. F872-F881 ◽  
Author(s):  
Renato O. Crajoinas ◽  
Lucília M. A. Lessa ◽  
Luciene R. Carraro-Lacroix ◽  
Ana Paula C. Davel ◽  
Bruna P. M. Pacheco ◽  
...  
Keyword(s):  
Molecular Mechanisms ◽  
Spontaneously Hypertensive Rat ◽  
The Body ◽  
Sodium Reabsorption ◽  
Spontaneously Hypertensive ◽  
Bicarbonate Reabsorption ◽  
Before And After ◽  
Wistar Kyoto ◽  
Lower Ratio

Abnormalities in renal proximal tubular (PT) sodium transport play an important role in the pathophysiology of essential hypertension. The Na+/H+ exchanger isoform 3 (NHE3) represents the major route for sodium entry across the apical membrane of renal PT cells. We therefore aimed to assess in vivo NHE3 transport activity and to define the molecular mechanisms underlying NHE3 regulation before and after development of hypertension in the spontaneously hypertensive rat (SHR). NHE3 function was measured as the rate of bicarbonate reabsorption by means of in vivo stationary microperfusion in PT from young prehypertensive SHR (Y-SHR; 5-wk-old), adult SHR (A-SHR; 14-wk-old), and age-matched Wistar Kyoto (WKY) rats. We found that NHE3-mediated PT bicarbonate reabsorption was reduced with age in the SHR (1.08 ± 0.10 vs. 0.41 ± 0.04 nmol/cm2×s), while it was increased in the transition from youth to adulthood in the WKY rat (0.59 ± 0.05 vs. 1.26 ± 0.11 nmol/cm2×s). Higher NHE3 activity in the Y-SHR compared with A-SHR was associated with a predominant microvilli confinement and a lower ratio of phosphorylated NHE3 at serine-552 to total NHE3 (P-NHE3/total). After development of hypertension, P-NHE3/total increased and NHE3 was retracted out of the microvillar microdomain along with the regulator dipeptidyl peptidase IV (DPPIV). Collectively, our data suggest that the PT is playing a role in adapting to the hypertension in the SHR. The molecular mechanisms of this adaptation possibly include an increase of P-NHE3/total and a redistribution of the NHE3-DPPIV complex from the body to the base of the PT microvilli, both predicted to decrease sodium reabsorption.

scholarly journals Pengaruh propolis terhadap profil lipid plasma tikus model hiperkolesterolemia

2012 ◽  
Vol 8 (3) ◽  
pp. 106
Author(s):  
Krisnansari Diah ◽  
Ariadne Tiara Hapsari ◽  
Evy Sulistyoningrum ◽  
Agus Prastowo
Keyword(s):  
Lipid Profile ◽  
Total Cholesterol ◽  
Ldl Cholesterol ◽  
Plasma Cholesterol ◽  
Hdl Cholesterol ◽  
Sprague Dawley ◽  
High Cholesterol ◽  
Cholesterol Levels ◽  
Group I ◽  
Before And After

Background: Nowadays, cardiovascular disease caused by hypercholesterolemia has become the main cause of death. Propolis has been used widely to reduce plasma cholesterol levels.Objective: The aims of this research was to study the effect of propolis on lipid profile of hypercholesterolemic Sprague Dawley rats.Method: This was an experimental study with pre-post test. Twenty four (24) male Sprague Dawley rats aged 12-16 week old, weighing 125-200 g were allocated into 4 groups. Group I received standard meal + aquadest-gavage; group II received high cholesterol meal + PTU 0,01 + aquadest gavage; group III received high cholesterol meal + PTU 0,01 + 0,027 g propolis gavage; group IV received high cholesterol meal + PTU 0,01 + 0,054 g propolis gavage. Total cholesterol, triglycerides, HDL cholesterol and LDL cholesterol levels before and after treatment were measured. The data were then analyzed with One Way Anova.Results: The study showed that there were no significant differences in changes of body weight. There were significant differences in total cholesterol levels between all groups of treatment. Triglyceride levels were significantly different among all groups, except between group I and IV. Furthermore, the HDL cholesterol levels of group I vs III and group I vs IV were significantly different. However, there were no differences found in LDL cholesterol levels among all groups of treatment.Conclusion: Provision of 0,027 g and 0,054 g propolis improve lipid profile (total cholesterol, triglyceride and HDL cholesterol levels) of hypercholesterolemic rats.

scholarly journals Efek Bubuk Susu Kedelai terhadap Kadar Kolesterol LDL dan HDL Serum Wanita Perimenopause dengan Hiperkolesterolemia

2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Retno Kuntarti ◽  
Sri Sukmaniah ◽  
Sri Widia A. Jusman
Keyword(s):  
Cholesterol Level ◽  
Serum Cholesterol ◽  
Ldl Cholesterol ◽  
Milk Powder ◽  
Hdl Cholesterol ◽  
Dietary Intakes ◽  
Soy Milk ◽  
Cholesterol Levels ◽  
Perimenopausal Women ◽  
Powder Consumption

Perimenopausal women is at risk of atherosclerosis as a result of the increase of LDL cholesterol level and the decrease of HDL cholesterol level.  Soy milk powder consumption may protect toward these risk factors. This purpose of study is to investigate the effects of 2x30 g/d soy milk flour for eight weeks on serum cholesterol LDL and HDL levels in hypercholesterolemic perimenopausal women. The 19 subjects received 2x30 g/d soy milk powder for eight weeks. LDL and HDL serum cholesterol levels were determined at 0, 4, 9 weeks. Dietary intakes were assesed using 1x24 hours food recall. Statistical analysis used t Test. After eight weeks intervention, Soy milk powder decreases significant (p0.05) LDL cholesterol levels at the 4th  week (8.59±17.31%), and the8th week (7.81±11.32%). Soy milk powder can’t increase HDL cholesterol levels at the 4th and 8th weeks significantly.  Soy milk decrease significant the ratio of LDL to HDL (7,03±16,82%) at the 4th week. Consuming soy milk powder 2 x 30 g/d during eight weeks can reduce the LDL cholesterol level and LDL/HDL ratio significantly.

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