Pharmacological Intervention Using Reconstituted High-Density Lipoprotein Changes in the Lipid Profile in Spontaneously Hypersensitive Rats

2010 ◽  
Vol 32 (3) ◽  
pp. 202-208
Author(s):  
Satoshi Imaizumi ◽  
Yoshihiro Kiya ◽  
Shin-Ichiro Miura ◽  
Bo Zhang ◽  
Yoshino Matsuo ◽  
...  
2019 ◽  
Vol 3 (8) ◽  
pp. 1503-1517 ◽  
Author(s):  
Alexandra B Kinzer ◽  
Robert D Shamburek ◽  
Marissa Lightbourne ◽  
Ranganath Muniyappa ◽  
Rebecca J Brown

Abstract Context Patients with lipodystrophy have dyslipidemia and insulin resistance. Leptin treatment with metreleptin in lipodystrophy decreases insulin resistance and lowers triglycerides without changing high-density lipoprotein. Detailed measurement of lipoprotein particles with nuclear magnetic resonance (NMR) spectroscopy can offer insights into cardiovascular disease (CVD) risk and lipid metabolism beyond a standard lipid panel. We hypothesized that patients with lipodystrophy would have a more atherogenic lipid profile than controls at baseline, which would be ameliorated with metreleptin treatment. Objective To characterize the lipoprotein profile in patients with lipodystrophy compared with controls and to evaluate effects of metreleptin treatment. Design, Setting, Patients, and Intervention Patients with lipodystrophy (N = 17) were studied before and after metreleptin for 2 weeks and 6 months and compared with 51 insulin-sensitive sex-matched controls. Main Outcome Measures Lipoprotein profiles were measured by NMR with the LP4 deconvolution algorithm, which reports triglyceride-rich lipoprotein particles (TRLPs), high-density lipoprotein particles (HDLPs), and low-density lipoprotein particles (LDLPs). Results Patients with lipodystrophy had elevated large TRLPs and smaller HDLPs and LDLPs compared with controls. Five patients with lipodystrophy had chylomicrons, compared with zero controls. Metreleptin decreased the size and concentration of TRLPs, eliminated chylomicrons in all but one patient, decreased LDLPs, and increased LDLP size. Metreleptin treatment did not have major effects on HDLPs. Conclusions Patients with lipodystrophy had an atherogenic lipoprotein profile at baseline consistent with elevated CVD risk, which improved after metreleptin treatment. The presence of fasting chylomicrons in a subset of patients with lipodystrophy suggests saturation of chylomicron clearance by lipoprotein lipase.


2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Haddad A. El Rabey ◽  
Madeha N. Al-Seeni ◽  
Hanan M. Amer

The efficiency of oat bran and barley bran in lowering the induced hyperlipidemia and hypercholesterolemia in blood of male Albino rats (Rattus rattus) was studied. Twenty rats were divided into four groups each consisted of five rats and fed the specified test diets for eight weeks. The first group (G1) is the negative group which was fed basal diet, the second group (G2) was fed 1.0% cholesterol, was the third group (G3) fed 1.0% cholesterol and 10% oats bran, and the fourth group (G4) was fed 1.0% cholesterol and 10% barley bran. Feeding rats on 1% cholesterol significantly increased serum total cholesterol, low density lipoprotein, and very low density lipoprotein and triglyceride and decreased serum high density lipoprotein. Furthermore, enzyme activity of alanine aminotransferase, aspartate aminotransferase, and alkaline phosphatase was increased, and lipid peroxide was increased, whereas catalase and glutathione-S-transferase were decreased. Kidney functions parameters in the cholesterol supplemented group were elevated compared with the negative control. In addition, histological alteration in kidney, liver, heart, and testes was observed, compared with the negative control. Hypercholesterolemic rats supplemented with oat bran and barley bran showed significant decrease in lipid parameters, significant increase in high density lipoprotein-cholesterol, improved antioxidant enzyme, and improved histopathology of kidney, liver, heart, and testes. In conclusion, both oat bran and barley bran had protective effects against induced hyperlipidemia and improved histological alterations. Oat bran appeared more efficient than barley bran in lowering the lipid profile levels in hypercholesterolemic rats.


2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Tengku Anggun Lestari ◽  
Nour Athiroh ◽  
Nurul Jadid Mubarakati

Tea Benalu (Scurrula atropurpurea [Bl.] Dans.) and Mango Benalu (Dendrophthoe pentandra L. miq.) containssecondary metabolites with potential antioxidant potential. Antioxidants can inhibit the oxidation process and reduce Total Cholesterol, Triglycerides, Low-Density Lipoprotein (LDL) and increase High-Density Lipoprotein (HDL). The safety of the preparations for the combination of parasites of tea and mango leaves was tested to obtain toxic effects after repeated treatment tests over some time. The purpose of this study was to determine the toxic effects of a combination of methanolic extracts of a combination of tea parasites and mangoes in female rats (Rattus norvegicus) subchronically for 28 days by looking at the results of the clinical biochemical examination on lipid profiles, namely total cholesterol levels, triglycerides, high-density lipoproteins (28%). HDL), and Low-Density Lipoprotein (LDL). The method of this study was experimental with a combination dose of methanol extract of tea parasite leaves and mango parasite leaves at a dose of 250 mg / KgBB, 500 mg / KgBB and 1000 mg / KgBB with 5x replications each treatment. The subjects used white rats (Rattus norvegicus) female Wistar strains aged 6-8 weeks with a minimum body weight of 100 grams. The treatment in this study was in the form of each dose given 5 times a week for 28 days (subchronic toxicity test) orally. Lipid profile levels were analyzed using the one-way ANOVA test. The results showed that the level of control blood lipid profile with a treatment dose of 250 mg / KgBW, 500 mg / KgBW, and 1000 mg / KgBW was not significantly different. The toxicity test of combined extracts of tea leaves and mango parasite leaves of female rat Rattus novergicus on subchronic exposure 28 days with those doses showed no difference tangible between treatments of controls. This means it is safe and does not cause toxic properties in the lipid profile of female wistar rats.Keywords: Lipid Profile, Scurrula atropurpurea, Dendophthoe pentandra, Sub-Chronic Toxicity, Rattus norvegicus ABSTRAKBenalu Teh (Scurrula atropurpurea [Bl.] Dans.) dan  Benalu Mangga (Dendrophthoe pentandra L. miq.) mengandung metabolit sekunder berpotensi sebagai antioksidan. Antioksidan dapat memperhambat proses oksidasi dan menurunkan Cholesterol Total, Trigliserida, Low Density Lipoprotein (LDL) dan menaikkan High Density Lipoprotein (HDL). Keamanan sediaan kombinasi daun benalu teh dan mangga diuji memperoleh tentang efek toksik setelah uji perlakuan berulang dalam jangka waktu tertentu. Tujuan dari penelitian ini untuk mengetahui efek toksik kombinasi ekstrak metanolik kombinasi daun benalu teh dan mangga pada tikus betina (Rattus norvegicus) secara subkronik selama 28 hari dengan melihat hasil pemeriksaan biokimia klinis pada profil lipid, yaitu kadar Cholesterol Total, Trigliserida, High Density Lipoprotein (HDL), dan Low Density Lipoprotein (LDL). Metode penelitian ini adalah eksperimental dengan perlakuan dosis kombinasi ekstrak metanol daun benalu teh dan daun benalu mangga dosis 250 mg/KgBB, 500 mg/KgBB dan 1000 mg/KgBB dengan ulangan 5x tiap perlakuan. Subjek menggunakan tikus putih (Rattus norvegicus) betina strain wistar yang berumur 6-8 minggu dengan berat badan minimal 100 gram. Perlakuan dalam penelitian ini berupa setiap dosis  diberikan 5 kali seminggu selama 28 hari (uji toksisitas subkronik) secara per-oral. Kadar profil lipid dianalisis menggunakan uji One-way ANOVA. Hasil penelitian menunjukkan bahwa kadar profil lipid darah kontrol dengan perlakuan dosis 250 mg/KgBB, 500 mg/KgBB dan 1000 mg/KgBB tidak berbeda nyata. Uji”toksisitas”ekstrak kombinasi daun benalu teh dan daun benalu mangga  tikus betina Rattus novergicus pada paparan subkronik 28 hari dengan”dosis”tersebut menunjukkan hasil tidak”beda”nyata antara perlakuan terhadap”kontrol. ”Hal ini berarti aman dan tidak menimbulkan sifat toksik pada profil lipid tikus wistar betina.Kata Kunci : Profil Lipid, Scurrula atropurpurea, Dendophthoe pentandra, Subkronik, Rattus norvegicus


2021 ◽  
Vol 71 (Suppl-1) ◽  
pp. S202-06
Author(s):  
Kanwal Huma ◽  
Khadija Mehbob ◽  
Amir Rashid ◽  
Fatima Fuad ◽  
Muhammad Mamoon Mujahid ◽  
...  

Objective: To compare lipid profile in patients with diabetic neuropathy and without neuropathy. Study Design: Cross-sectional comparative study. Place and Duration of Study: This study was carried out at Multidisciplinary Lab-1, Department of Biochemistry and Molecular Biology, Army Medical College, from Jan 2020 to Sep 2020 in collaboration with Pak-Emirates Military Hospital, Rawalpindi. Methodology: Eighty-four subjects were selected and divided into three groups, twenty-eight in each. Group Iincluded diagnosed patients with type 2 diabetes mellitus with peripheral neuropathy, group II included diagnosed patients with type 2 diabetes mellitus without peripheral neuropathy and group III consisted of healthy individuals. Biochemical parameters including total cholesterol, triglycerides, high density lipoprotein cholesterol and low density lipoprotein cholesterol were measured. Data was analyzed by SPSS version 22.0. One way ANOVA test was used that followed by post-Hoc Tukey test for group comparison. Results: There was significant difference in triglycerides (p-value 0.001) and high density lipoprotein cholesterol(0.003) levels among group I and III. While, between group II and III significant difference of high density lipoprotein cholesterol was present. There was no significant difference between group I and II regarding all lipid profile parameters. Conclusion: There was significant increase of triglycerides levels and decrease of high density lipoproteincholesterol in patients with diabetic peripheral neuropathy as compared to healthy controls. No significantdifference was observed for all parameters of lipid profile between patients with diabetic peripheral neuropathyand without peripheral neuropathy.


Author(s):  
Geetha Palaniswamy ◽  
Lakshman Kumar B ◽  
Indra U ◽  
Pavithra Sheetal B

Objective: Ulcerative colitis is a type of inflammatory bowel disease is a chronic gastrointestinal disorder characterized by intestinal inflammation and mucosal tissue damage. We examined the lipid profile levels in murine model of 7,12 Dimethylbenz(a)anthracene induced ulcerative colitis.Methods: Serum was separated from whole blood and was used to determine the lipid profile such as total cholesterol (TC), phospholipids (PL), triglycerides (TG), free fatty acids, high density lipoprotein (HDL-C) and low density lipoprotein (HDL-C).Results: Ulcerative colitis rats exhibit low level of low density lipoprotein cholesterol and total cholesterol. No significant difference was observed in high density lipoprotein and triglycerides and significant difference was observed in phospholipids and free fatty acid serum levels. This communication highlights the lipid profile that occurs in ulcerative colitis.Conclusion: This study, thus, provides valuable information about the disturbances in the lipids and lipoproteins occur in ulcerative colitis.Keywords: Ulcerative colitis, 7,12-Dimethylbenz(a)anthracene, Lipoprotein, Low-density lipoprotein, Phospholipids.


2014 ◽  
Vol 9 (1) ◽  
pp. 13-17 ◽  
Author(s):  
CM Reza ◽  
ASMA Kabir ◽  
Tuhin Biswas ◽  
Kamrun Nahar Choudhury ◽  
Md Zahidur Rahman ◽  
...  

Back ground: Hypertension and dyslipidemia are associated with oxidative stress and are major causes of cardiovascular disease amounting to 30% of global death rate. It is widely accepted that cardiovascular disease is associated with hypertension and increased blood levels of low-density lipoprotein (LDL), total cholesterol (TC), and triglycerides. In contrast, a low level of high density lipoprotein (HDL) is a risk factor for mortality from cardiovascular disease. Hypertension is a major public health problem in developed and developing countries. Methods: This study was a cross sectional study in which 159 diagnosed hypertensive patient and 75 with normal blood pressure (normotensive) were enrolled. These patients sought a through health cheek up including blood pressure assessment between May 2012 to April 2013 in Tairunnessa Memorial Medical College and Hospital. Lipid parameter total cholesterol (TC), triglyceride (TG), low density lipoprotein ( LDLc) and high density lipoprotein (HDLc) were estimated by enzymatic colorimetric test. Results: The mean of Systolic blood pressure and Diastolic blood pressure of hypertensive were higher than normotensive (p<0.001). The serum levels of total cholesterol, triglyceride and LDL-C in hypertensive subject were higher than normotensive and statistically significant (p<0.001). Serum HDL-C was significantly lower (p<0.001) in hypertensive patients than in normotensive. Conclusion: Analytical results of the study revealed that hypertensive patients have been found to have close association with dyslipidemia. Hypertension and dyslipidemia can be modified either by proper life style changes or medical management or by the combination of the both. This study suggests that hypertensive patients need measurement of blood pressure and lipid profile at regular interval to prevent heart diseases and stroke. DOI: http://dx.doi.org/10.3329/uhj.v9i1.19505 University Heart Journal Vol. 9, No. 1, January 2013; 13-17


F1000Research ◽  
2019 ◽  
Vol 8 ◽  
pp. 845
Author(s):  
Justice Afrifa ◽  
Felix A. Botchway ◽  
Yeboah Kwaku Opoku ◽  
Joyce Badohu ◽  
Henrietta Ekua Ocran ◽  
...  

Background: Cardiovascular diseases (CVD) continue to be a major cause of death among post-menopausal women. We sought to assess cardiovascular risk among pre- and post-menopausal women living within the Cape Coast Municipality by comparing the lipid profiles and other emerging biomarkers of CVD, i.e. the atherogenic index of plasma (AIP), visceral adiposity index (VAI), body adiposity index (BAI) and Castelli index I (CRI-I). Methods: A comparative cross-section of 150 women (75 pre-menopausal women and 75 post-menopausal women) visiting the University of Cape Coast hospital for regular checkups were randomly recruited into the study. Socio-demographic and clinical characteristics of participants were obtained with the aid of a structured questionnaire. Blood pressure (BP) was measured and lipid profile was estimated using fasting blood samples. Other markers of cardiovascular risk such as BMI, AIP, VAI, BAI and CRI-I were estimated. Results: We report elevated levels of total cholesterol (TC) (p<0.0001), low density lipoprotein (LDL) (p<0.0001), very low-density lipoprotein (VLDL) (p=0.0021), triglycerides (TG) (p<0.0001) and non-high-density lipoprotein (non-HDL-C) cholesterol (p<0.0001) in post-menopausal women compared with pre-menopausal women. High-density lipoprotein (HDL) (p<0.0001) was, however, decreased in post-menopausal women. Mean AIP (p< 0.0001), VAI (p< 0.0001), BAI (p< 0.0038) and CRI-I (p<0.0001) were significantly increased in post-menopausal women compared to pre-menopausal women. We also report a positive correlation of TC, TG, VLDL and non-HDL with atherogenic markers AIP, VAI and CRI-I in post-menopausal women. A negative correlation of HDL with AIP, VAI, and CR in post-menopausal women was also observed. Conclusions: Menopause could lead to changes in lipid profile to atherogenicity with associated increase in the risk of CVD. Atherogenic markers such as AIP, VAI, BAI, and CR can serve as potential biomarkers for predicting CVD.


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