Early Effects of High Cholesterol Diet on the Kidney of an Animal Model

Introduction: Previous studies have proven the existence of a complex association between progressive kidney damage and hypercholesterolemia. Most studies focused on the impact of chronic high blood cholesterol levels on the kidney. Information on the early effect of hypercholesterolemia on the kidney is still lacking. The aim of this study was therefore to determine early effect of high cholesterol diet on the kidney in an animal model. Materials and method: Ten female Sprague-Dawley rats were divided into two groups. The control group was fed with commercial rat pellet while the high cholesterol diet (HCD) group was fed with 12% cholesterol diet and 0.3% cholic acid. Biochemical analysis (lipid profile and renal function) was performed at 48 hours, 7 days and 6 weeks of the experiment. The animals were sacrificed at 6 weeks and the kidneys were harvested for histological examination. Results: The HCD group rats had significantly higher levels of serum total cholesterol (at 7 days and 6 weeks). The HDL-cholesterol and triglyceride levels were however lower at 6 weeks. The mean serum creatinine level of the HCD group were increased after 48 hours and 7 days compared to the control group. Histological examination of the kidney tissue of the HCD group at 6 weeks revealed segmental mesangial hypercellularity and mesangial matrix expansion of the glomeruli. Conclusion: The 12% cholesterol diet induced dyslipidaemia in the animal model. It resulted in acute kidney injury based on the serum creatinine at 48 hours and 7 days. Kidney tissues examined at 6 weeks revealed changes confined to mesangial cells of the renal glomeruli.

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Impact of Long-term, High-fat, and High-cholesterol Diet on Murine Vertebrae Bones

Zeitschrift für Orthopädie und Unfallchirurgie ◽

10.1055/a-1194-5554 ◽

2020 ◽

Author(s):

Frank Alexander Schildberg ◽

Koroush Kabir ◽

Jessica Bojko ◽

Mona Khoury ◽

Werner Masson ◽

...

Keyword(s):

Bone Density ◽

Genetic Factors ◽

Control Group ◽

High Cholesterol Diet ◽

Micro Ct ◽

Cholesterol Diet ◽

High Cholesterol ◽

High Fat ◽

The Impact

AbstractAs the percentage of overweight individuals in the population rises, diseases associated with excess weight resulting from poor nutrition are becoming more and more widespread. So far, the influence of weight or nutrition on bone health has shown conflicting results. In the literature, the existing studies disagree about the effect of diet on bones. Therefore, this study investigated the impact of a long-term, high-fat, and high-cholesterol diet on the spine in a mouse model. Wild-type mice were randomly separated into two groups; one group received a high-fat and high-cholesterol diet, and a control group was fed with a regular diet since birth for a duration of 8 months. The first to fifth thoracic vertebrae were extracted and investigated using histology and micro-CT. Samples were analyzed regarding different parameters: percentage of bone structure compared to the whole vertebra and the amount and thickness of the trabeculae. Both methods of the analysis showed similar results. Diet did not have a significant impact on the bone density of the vertebrae. The micro-CT examination showed that the average bone percentage of the examined vertebra was 6% (p = 0.2330) higher in the control group compared to the diet group. The same tendency was demonstrated in histology even though with a smaller difference of only 5%. The results of both methods were comparable and showed trends for the influence of different diets but not significant impacts. In summary, this study showed that a high-fat and high-cholesterol diet has a slightly negative impact on bone density. In order to further analyze the effects of different diets on bone composition, structure, and density, additional long-term studies should be carried out, and more parameters such as movement and genetic factors should be analyzed. Furthermore, other parameters such as exercise and genetic factors that could have a secondary influence on obesity should be investigated.

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Renoprotective Role of Tualang Honey Against High Cholesterol Diet Induced Acute Kidney Diseases in an Animal Model

IIUM Medical Journal Malaysia ◽

10.31436/imjm.v16i1.1175 ◽

2017 ◽

Vol 16 (1) ◽

Author(s):

Zenab B. Hamad Mohamed ◽

Hamad Abdulsalam Hamad Alfarisi ◽

Nor Zamzila Abdullah ◽

Naznin Muhammad ◽

Roslina Abdul Rahim

Keyword(s):

Animal Model ◽

Renal Function ◽

Histological Examination ◽

Kidney Diseases ◽

High Cholesterol Diet ◽

Cholesterol Diet ◽

High Cholesterol ◽

Renoprotective Effect ◽

Significant Difference ◽

Tualang Honey

Introduction: Although there is a growing insight into the causes and mechanisms of kidney diseases, preventive and therapeutic measures are still few. The aim of this study was therefore to determine the renoprotective effect of tualang honey against high cholesterol diet induced acute kidney disease in an animal model. Materials and method: Ten female Sprague-Dawley rats were divided into two groups: high cholesterol diet (HCD) group, fed with 12% cholesterol diet with 0.3% cholic acid, and high cholesterol diet with tualang honey (HCD + TH) group, fed with HCD with oral daily dose of 1.4 g/kg/day of tualang honey by gavage. Biochemical analysis of lipid profile and renal function were performed at 48 hours, 7 days, and 6 weeks of the experiment. The animals were sacrificed at 6 weeks and the kidneys were harvested for histological examination. Results: There was no significant difference between the HCD and the HCD+TH groups in the level of TC. The mean serum LDL-c, TG and vLDL levels at completed 48 hours and 7 days for the HCD+TH group were lower as compared to the HCD group. The only significant difference in renal function test between HCD and HCD + TH groups reported were theserum creatinine at completed 48 hours. Histological examination of the kidney tissue of the HCD and HCD+TH groups at 6 weeks revealed segmental mesangial hypercellularity and mesangial matrix expansion of the glomeruli. Conclusion: Tualang honey supplementation has resulted in an improvement of the renal profile which is suggestive of its renoprotective effect. However, the histopathological examination of the kidneys revealed similar changesin both groups and this may be related to the dose of honey used in the study. Additionally, tualang honey showed improvement in LDL-c, triglyceride and vLDL levels indicating its lipid lowering activities.

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Effects of Kombucha Tea on Side Effects of High Cholesterol Diet in Rabbits

Pharmaceutical and Biomedical Research ◽

10.18502/pbr.v6i2.3804 ◽

2020 ◽

Author(s):

Monir Doudi ◽

Zahra Hooshmandi ◽

Somayeh Saedi ◽

Mahbubeh Setorki

Keyword(s):

Side Effects ◽

Blood Cholesterol ◽

Control Group ◽

High Cholesterol Diet ◽

Standard Diet ◽

Cholesterol Diet ◽

High Cholesterol ◽

Pancreatic Acini ◽

Kombucha Tea ◽

Significant Difference

Background: This research aimed to assess the effect of kombucha tea on reducing cholesterol (HCH) uptake and ameliorating biochemical and physiological side effects of high cholesterol diets. Objectives: The aim of this research was evaluate the effectiveness of Kombucha tea in reducing cholesterol uptake as well as pathological and immunological side effects from high cholesterol diets in Rabbit. Methods: A total of 32 rabbits were assigned into four groups: 1. Control, fed with standard pellets; 2. HCh+St, fed with high cholesterol diet; 3. HCh+Kom, fed with high cholesterol diet and orally received kombucha beverage; and 4. Kom+St, orally received kombucha beverage along with standard diet. Then, the blood Cholesterol (CHO), Triglycerides (TG), Low-density Lipoprotein (LDL), Malondialdehyde (MDA), ferritin, Creatine Phosphokinase (CPK), Interleukin-1 (IL-1), interleukin-6 (IL-6), and liver enzymes (alanine transaminase [ALT], and aspartate transaminase [ AST]), as well as liver histopathological features, were evaluated in all groups. Results: CHO and TG showed the highest level in the blood of the HCh+St group, whereas those gavaged with HCh+Kom displayed no change in TG and LDL. Conversely, the HCh+Kom group showed a significant increase in HDL when compared with HCh+St and Kom+St groups. MDA ferritin and CPK in the Kom+St group was significantly higher than the other groups, followed by HCh+Kom. No significant difference was observed in the values of IL-1 and IL-6 as well as ALT and AST between the experimental groups and the control group. Histopathological observations of the liver tissues revealed foam cells with an acidophilic appearance in the HCh+St group and hyperemia in the sinusoid of HCh+Kom and Kom+St groups. Degradation in pancreatic acini was observed in the HCh+St rabbits. Conclusion: The data suggest that kombucha consumption is effective in preventing problems caused by high cholesterol diets.

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The Effect of Tualang Honey in Chronic Exposure of High Cholesterol Diet in Animal Model

IIUM Medical Journal Malaysia ◽

10.31436/imjm.v18i2.658 ◽

2020 ◽

Vol 18 (2) ◽

Author(s):

Roslina Abdul Rahim ◽

Siti Aesah @ Naznin Muhammad ◽

Azril Shahreez Abdul Ghani ◽

Nor Zamzila Abdullah ◽

Norlelawati A. Talib ◽

...

Keyword(s):

Animal Model ◽

Renal Function ◽

Histological Examination ◽

Chronic Exposure ◽

Lipid Lowering ◽

High Cholesterol Diet ◽

Standard Diet ◽

Cholesterol Diet ◽

High Cholesterol ◽

Tualang Honey

Introduction: Hyperlipidaemia accompanies chronic renal disease either as a consequence of the renal dysfunction or as part of generalized metabolic derangements. The aim of this study was to determine the effects of tualang honey (TH) on the kidneys of animal model with chronic exposure to high cholesterol diet. Materials and method: Twenty Sprague-Dawley rats were divided into two groups, the high cholesterol diet (12% CD (n= 16) and standard diet (SD) (n=4) and were fed for 12 weeks. After 12 weeks, the rats in the 12% CD group were subsequently divided into four groups. The first group was continued with only 12% CD while the other 3 groups in addition to the 12% CD, they were given TH treatment at different concentrations (1.2, 2.4 and 3.0 g/kg/day) for 4 weeks. Biochemical analysis of lipid profile and renal function were performed at the end of the experiment. The animals were sacrificed and the kidneys were harvested for histological examination. Results: In the 12 weeks HCD group, the serum cholesterol, LDL-c and creatinine levels were significantly higher) compared to that of the SD group. All groups with the tualang honey treatment had significant reduction in the LDL-c, triglyceride and creatinine levels. Histological examination of the kidney tissues of the HCD and HCD+TH groups at 16 weeks revealed segmental mesangial proliferation of some glomeruli with focal mesangial matrix expansion. No areas of periglomerular and peritubular fibrosis were observed. Conclusion: Tualang honey supplementation of animal model with chronic exposure to high cholesterol diet improved the renal function hence suggesting the its renoprotective effect. However, there were no changes seen in the histology of the kidneys . Additionally, tualang honey showed improvement in the LDL-c and triglyceride levels indicating its lipid lowering activities.

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Abstract 130: Hypercholesterolemia Suppresses Carotid Artery Endothelial NOS3 Expression via Epigenetic Mechanisms

Arteriosclerosis Thrombosis and Vascular Biology ◽

10.1161/atvb.35.suppl_1.130 ◽

2015 ◽

Vol 35 (suppl_1) ◽

Author(s):

Alex Sotolongo ◽

Yi-Zhou Jiang ◽

John Karanian ◽

William Pritchard ◽

Peter Davies

Keyword(s):

Gene Expression ◽

Dna Methylation ◽

Endothelial Cells ◽

Dna Methyltransferase ◽

Control Group ◽

High Cholesterol Diet ◽

Cholesterol Diet ◽

High Cholesterol ◽

High Fat

Objective: One of the first clinically detectable changes in the vasculature during atherogenesis is the accumulation of cholesterol within the vessel wall. Hypercholesterolemia is characterized by dysfunctional endothelial-dependent vessel relaxation and impaired NOS3 function. Since DNA methylation at gene promoter regions strongly suppresses gene expression, we postulated that high-fat/high-cholesterol diet suppresses endothelial NOS3 through promoter DNA methylation. Methods: Domestic male pigs were fed control diet (CD) or isocaloric high fat and high cholesterol diet (HC; 12% fat and 1.5% cholesterol) for 2, 4, 8 or 12 weeks prior to tissue collection. Furthermore, to determine the effects of risk factor withdrawal, an additional group of swine received HC for 12 weeks and then CD for 8 weeks; a control group received HC continuously for 20 weeks. Endothelial cells were harvested from common carotid aorta. In parallel in vitro studies, cultured human aortic endothelial cells (HAEC) were treated with human LDL, GW3956 (LXR agonist) and RG108 (DNA methyltransferase [DNMT] inhibitor). In cells from both sources, DNA methylation at the NOS3 promoter was measured using methylation specific pyro sequencing, and endothelial gene expression was measured using RT PCR. Results: HC diet increased plasma cholesterol level from 75 mg/dl on CD to a plateau of about 540 mg/dl within 2 weeks. Endothelial NOS3 expression was significantly reduced (71±9 % of CD) after 4 weeks of HC, a level sustained at subsequent time points. Withdrawal of HC for 8 weeks did not recover NOS3 expression. After 12-week HC, the NOS3 promoter was hypermethylated. Withdrawal of HC did not reverse NOS3 promoter methylation. In vitro treatment of HAEC with human LDL (200 mg/dl total cholesterol) or GW3956 (5μM) suppressed NOS3 mRNA to 50% and 30% respectively, suggesting that LXR/RXR is involved in suppression of NOS3. Nitric oxide production was consistently suppressed by GW3959. Both could be reversed through inhibition of DNMTs by RG108. Conclusions: DNA methylation and LXR/RXR pathway can mediate the HC-suppression of endothelial NOS3. The study identifies novel pharmaceutical targets in treating endothelial dysfunction. Crosstalk between these pathways is under investigation.

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Simvastatin Reduces Expression and Activity of Lipoprotein-Associated Phospholipase A2 in the Aorta of Hypercholesterolaemic Atherosclerotic Rabbits

Journal of International Medical Research ◽

10.1177/147323000903700407 ◽

2009 ◽

Vol 37 (4) ◽

pp. 1029-1037 ◽

Cited By ~ 8

Author(s):

Z Qiao ◽

J Ren ◽

H Chen

Keyword(s):

Atherosclerotic Lesion ◽

Statin Treatment ◽

Control Group ◽

High Cholesterol Diet ◽

Atherosclerotic Plaques ◽

Cholesterol Diet ◽

High Cholesterol ◽

Local Inflammatory Response ◽

Plaque Instability ◽

Significant Difference

Lipoprotein-associated phospholipase A2 (Lp-PLA2) contributes to atherosclerotic plaque instability and subsequent sudden coronary death. Statins are associated with decreased stroke risk and may improve stability of atherosclerotic plaques. The present study investigated the effect of simvastatin on expression of Lp-PLA2 levels in atherosclerotic plaques and on Lp-PLA2 activity in atherosclerotic aortas. Rabbits were a fed chow (control group) or a high-cholesterol diet (atherosclerosis group) for 12 weeks. An additional group on the high-cholesterol diet received simvastatin (5 mg/kg per day) for the last 4 weeks (simvastatin group). Lp-PLA2 activity in plasma and atherosclerotic aortas was significantly higher in the atherosclerosis group than in the control group and, consistent with this, abundant Lp-PLA2 protein was detected in plaques in the atherosclerosis group. Simvastatin significantly reduced Lp-PLA2 activity in plasma and aorta tissue, and reduced Lp-PLA2 protein level in atherosclerotic plaques. Whereas there was no significant difference in total atherosclerotic lesion area between simvastatin and atherosclerosis groups, simvastatin significantly reduced macrophage content, lipid retention and the intima/media ratio but increased the content of smooth muscle cells in atherosclerotic lesions. Thus, statin treatment markedly reduced Lp-PLA2 in both plasma and atherosclerotic plaques. This was associated with attenuation of the local inflammatory response and improved plaque stability.

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THE EFFECT OF NONI (Morinda citrifolia) EXTRACT TO HEPAR HISTOPATHOLOGY AND TRIGLYCERIDE LEVEL IN RATS (Rattus Norvegicus) INDUCED BY DISLIPIDEMIA

JURNAL AGRI-TEK Jurnal Penelitian Ilmu-Ilmu Eksakta ◽

10.33319/agtek.v20i2.34 ◽

2019 ◽

Vol 20 (2) ◽

pp. 76-81

Author(s):

Jhouharotul Faradisah ◽

Diah Purwaningsari

Keyword(s):

Lipid Metabolism ◽

Triglyceride Level ◽

Rattus Norvegicus ◽

Morinda Citrifolia ◽

Control Group ◽

High Cholesterol Diet ◽

Cholesterol Diet ◽

High Cholesterol ◽

White Rats ◽

Abnormal Lipid Metabolism

Dyslipidemia is an abnormal lipid metabolism which may cause fat degeneration on hepatocytes cells and elevated triglyceride serum level. Dyslipidemia can be prevented by the consumption of high antioxidant food. Noni(Morinda citrifolia) contains many antioxidant such as flavanoid, kuersetin, tannin, and saponin, which are able to prohibit the elevation of ROS.This research is aimed to find out the effect of noni(Morinda citrifolia) extract in reducing the number of hepatocyte’s cells with fat degeneration and decreasing the triglyceride level which is elevated due to high cholesterol diet induction.In this study white rats divided randomly into 4 groups, control group (K-), high cholesterol diet induced group (K+), high cholesterol diet induced with 100 mg/Kg BW noni extract group (P1), high cholesterol diet induced with 200 mg/Kg BW noni extract group (P2). The result shows that noni extract with dose 100 mg/Kg BW and 200 mg/Kg BWcan reduce the number of hepatocytes cells with fat degeneration (p= 0,026 and p=0,027) and decrease the level of triglyceride serum (p=0,036 and p=0,010).The conclusion is noni extract with dose 100 mg/KgBW reduces effectively the number of hepatocyte’s cells with fat degeneration and decreases the level of triglyceride serum which increase because of high cholesterol diet.

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Efek Ekstrak Biji Labu Kuning Terhadap Glukosa, Kolesteroldan Gambaran Histopatologi Pankreas Tikus Hiperkolesterolemia-Diabetes

Talenta Conference Series Tropical Medicine (TM) ◽

10.32734/tm.v1i3.280 ◽

2018 ◽

Vol 1 (3) ◽

pp. 144-151

Author(s):

Joni Tandi ◽

Rahmawati Rahmawati ◽

Rini Isminarti ◽

Jerry Lapangoyu

Keyword(s):

Ethanol Extract ◽

Pancreatic Tissue ◽

Blood Cholesterol ◽

Maximum Effect ◽

High Cholesterol Diet ◽

Cholesterol Diet ◽

High Cholesterol ◽

Cell Degeneration ◽

Pumpkin Seed ◽

Per Oral

Hiperkolesterolemia adalah peningkatan kadar kolesterol di dalam darah melebihi batas yang diperlukan oleh tubuh. Penelitan ini bertujuan menguji kandungan senyawa fitokimia ekstrak etanol biji labu kuning, efek pemberian ekstrak etanol biji labu kuning dan perbedaan efek ekstrak dengan dosis bertingkat terhadap penurunan degenerasi sel beta pankreas tikus putih jantan hiperkolesterolemia diabetes. Penelitian eksperimen laboratorium ini menggunakan hewan uji sebanyak 30 ekor tikus dibagi dalam enam kelompok perlakuan. Kelompok 1 (kontrol normal) diberikan Na-CMC 0,5% dan kelompok 2 (kontrol negatif) diberi pakan tinggi kolesterol, suspensi Streptozotocin 35 mg/kgBB dan Na-CMC 0,5% b/v; kelompok 3 diberi metformin 9 mg/kgBB per oral, pakan tinggi kolesterol dan suspensi streptozotocin 35 mg/kgBB; kelompok 4, 5 dan 6 masing-masing diberikan dosis 270, 360, dan 450 mg/kgBB per oral, pakan tinggi kolesterol dan suspensi streptozotocin 35 mg/kgBB. Gambaran tingkat kerusakan histopatologi pankreas diamati dengan pewarnaan HE menggunakan mikroskop Olympus BX-51 perbesaran 200x. Hasil penelitian menunjukkan: Terdapat senyawa alkaloid, flavonoid, polifenol, saponin,dan tannin pada ekstrak etanol biji labu kuning; ekstrak etanol biji labu kuning dosis 360 dan 450 mg/kgBB efektif menurunkan degenerasi jaringan pankreas tikus hiperkolesterolemia diabetes dan pemberian ekstrak etanol biji labu kuning dosis 270 mg/kgBB tidak memberikan efek maksimal jika dibandingkan dengan dosis 360 mg/kgBB dan dosis 450 mg/kgBB terhadap regenerasi sel organ pankreas tikus putih jantan hiperkolesterolemia diabetes. Hypercholesterolemia is an abnormal increase in blood cholesterol levels. This study aimed to identify the phytochemical content of pumpkin seed ethanol extract, the effect of pumpkin seed ethanol extract and the difference in the effect of various doses of extract in decreasing pancreatic beta cell degeneration in male diabetic hypercholesterolemia rat. The experimental research in laboratory used 30 rats as test animals, divided into six group. Group 1 (normal control administered with 0.5% Na CMC and group 2 (negative control) administered with high cholesterol diet, Streptozotocin 35 mg/kgBWand 0.5% Na-CMC b/v; Group 3 orally administered with metformin 9 mg/kgBW, high cholesterol diet, streptozotocin 35 mg/kgBW; group 4,5 and 6 orally administered with extract at doses of 270, 360, dan 450 mg/kgBB, high cholesterol diet, streptozotocin 35 mg/kgBW. Histopathology examination to determine pancreas damage was observed by HE staining using microscop Olympus BX-51 200x. The results showed the presence of alkaloids, flavonoids, poliphenol, saponins,andtanninsin phumpkin seeds ethanol extract; Ethanol extract of phumpkin seeds at doses of 360 dan 450 mg/kgBW effectively decreased degeneration of pancreatic tissue of diabetic hypercholesterolemia rat and ethanol extract of phumpkin seeds at the dose of 270 mg/kgBW did not show maximum effect as compared to the doses of 360 and 450 mg/kg BE on cell regeneration of pancreatic tissue of diabetic hypercholesterolemia rat

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Effect of lutein on lipid profile in hypercholesterolemic rats

International Journal of Basic & Clinical Pharmacology ◽

10.18203/2319-2003.ijbcp20181625 ◽

2018 ◽

Vol 7 (5) ◽

pp. 859

Author(s):

Uma Narayanamurthy ◽

Anandhi M. ◽

Manimekalai K.

Keyword(s):

Fatty Infiltration ◽

Treated Group ◽

Lipid Lowering ◽

Ldl Oxidation ◽

Control Group ◽

High Cholesterol Diet ◽

Chow Diet ◽

Cholesterol Diet ◽

High Cholesterol ◽

Group I

Background: Hyperlipidemia or Dyslipidemia is the major cause of atherosclerosis1 and associated conditions. Low levels of high-density-lipoprotein cholesterol (HDL-C) are the major causes of increased atherogenic risk 1. Aggressive cholesterol reduction in patients with atherosclerotic disease is now the standard of care2. In addition to life style modification, patients with risk factors need lipid lowering drug therapy. The drugs available now do not reduce LDL oxidation, and oxidative stress associated with hyperlipidemia. In recent years, antioxidants have been subjected to epidemiological studies4 that have related their consumption to a reduction in the incidence of oxidative damage related diseases.Methods: Hypercholesterolemia was induced in rats by administration of high cholesterol diet for 30 days in standard rat chow diet. Rats were divided into four groups of six each. Group-I and II with intake of normal diet and High cholesterol diet respectively. Group III and IV are given high cholesterol diet along with Lutein 50mg/kg and Atorvastatin 5mg/kg orally once daily respectively. At the end of 30 days animals were subjected to overnight fasting. Blood samples were drawn by retro-orbital puncture for biochemical analysis. The animals were sacrificed after thiopentone injection and liver and aorta were dissected out and processed for histopathological study and biochemical analysis.Results: Lutein treated group showed even more significant reduction in TBARS levels than the normal control group and Atorvastatin treated group. The efficacy of Lutein in slowing down the atherosclerosis and fatty infiltration of liver is proved in this study.Conclusions: Hence the present study had shown significant hypolipidemic, antiatherogenic and antioxidant effect of Luetin in Hyperlipidemic rats.

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