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Eyush E, Kumar S, Sen K, Sakarwal A, Ram H, Yadav D, Kumar A, Panwar A. Protective efficacy of nafronyl in diabetic retinopathy through targeted inhibition of key enzymes. Biotechnol Appl Biochem 2024. [PMID: 38898746 DOI: 10.1002/bab.2625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 05/27/2024] [Indexed: 06/21/2024]
Abstract
Diabetic retinopathy is governed by abnormal apoptosis, increased capillary pressure, and other linked pathology that needs an efficient treatment by multitargeted approaches. Thus, the current study aimed to explore the potential of inhibition of targeted enzymes (DPP4, ACE-2, and aldose reductase) and free radical scavenging capabilities of selected compounds (nafronyl or naftidrofuryl) through in silico and in vivo investigations. Significant binding energies were observed in complexes of aldolase reductase, angiotensin type 1 receptor, and DPP4 against the nafronyl and sitagliptin more than -7.5 kcal/mol. Further validation of free energy was confirmed by calculations of molecular mechanics Poisson-Boltzmann surface area (MMPBSA), and configurational stabilities examined by PCA (principal component analysis). Additionally, drug-likeness was examined by the Swiss ADME web tool, which showed significant findings. Consequently, in vivo experimentations showed significant inflammation and alterations in retinal layers of inner plexiform (inner limiting membrane, nerve fibers, and ganglionic cells), inner nuclear layer (bipolar cells and horizontal cells), and photoreceptors cells. Whereas the treatments (nafronyl and sitagliptin) caused significant improvements in the histoarchitecture of the retina. Additionally, the HOMA indices (IR-insulin resistance, sensitivity, and β cells functioning) and levels of free radicals were significantly altered in the diabetic control group in comparison to intact control. Nafronyl administration showed significant ameliorations in HOMA indices as well as antioxidant levels. Based on the results, it can be concluded that nafronyl efficiently interacts with target enzymes, which may result in potent inhibition and ameliorations in retinal histology as well as glucose homeostasis and antioxidants.
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Affiliation(s)
- Eyush Eyush
- Department of Biochemistry, Central University of Haryana, Mahendragrah, India
| | - Shivani Kumar
- School of Biotechnology, Guru Gobind Singh Indraprastha University, New Delhi, India
| | - Karishma Sen
- Department of Zoology, Jai Narain Vyas University, Jodhpur, India
| | - Anita Sakarwal
- Department of Zoology, Jai Narain Vyas University, Jodhpur, India
| | - Heera Ram
- Department of Zoology, Jai Narain Vyas University, Jodhpur, India
| | - Dharamveer Yadav
- Department of Biochemistry, All India Institute of Medical Sciences, Jodhpur, India
| | - Antresh Kumar
- Department of Biochemistry, Central University of Haryana, Mahendragrah, India
| | - Anil Panwar
- Department of Bioinformatics and Computational Biology, CCS Haryana Agricultural University, Hisar, India
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2
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Chary A, Tohidi M, Hasheminia M, Golmohammadi M, Haji Hosseini R, Hedayati M, Azizi F, Hadaegh F. Association Between HDL2-C and HDL3-C with Cardiovascular Disease: A Nested Case-Control Study in an Iranian Population. Int J Endocrinol Metab 2024; 22:e141550. [PMID: 38665147 PMCID: PMC11041996 DOI: 10.5812/ijem-141550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/18/2023] [Accepted: 11/28/2023] [Indexed: 04/28/2024] Open
Abstract
Background The contribution of high-density lipoprotein cholesterol (HDL-C) subclasses to incident cardiovascular disease (CVD) and coronary heart disease (CHD) remains a subject of debate. Objectives The objective of this study was to investigate these associations in a population with a high prevalence of dyslipidemia and CVD. Methods In a nested case-control study, HDL-C and its subclasses (HDL2-C and HDL3-C) in 370 age and gender-matched case and control subjects were determined. This study employed multivariable-adjusted conditional logistic regression to calculate the odds ratios (ORs) for the associations between HDL-C, HDL2-C, HDL3-C, and HDL2-C/HDL3-C (both as continuous and categorical variables) with incident CVD and CHD. The present study models were adjusted for a comprehensive set of confounders, including body mass index, current smoking, hypertension, type 2 diabetes mellitus, use of lipid-lowering drugs, family history of premature CVD, non-HDL-C, and triglycerides. Results In multivariate analysis, when considering lipoprotein parameters as continuous variables, a 1-unit increase in HDL-C and HDL3-C was associated with a reduced risk of incident CVD and CHD. For CVD, the ORs (95% confidence intervals [CI]) were 0.95 (0.92 - 0.98) and 0.95 (0.93 - 0.98) for HDL-C and HDL3-C, respectively. The corresponding values for CHD were 0.94 (0.91 - 0.97) and 0.94 (0.91 - 0.97). In the categorical approach to lipoprotein parameters, higher quartiles of HDL-C and HDL3-C, compared to the first quartile, were significantly associated with a lower risk of incident CVD and CHD. The ORs (95% CI) for the fourth quartiles were 0.43 (0.25 - 0.74, P for trend = 0.003) and 0.46 (0.27 - 0.78, P for trend = 0.005) for HDL-C and HDL3-C regarding CVD and 0.32 (0.17 - 0.59) and 0.32 (0.18 - 0.59) (all P for trend = 0.001) regarding CHD, respectively. Paradoxically, across quartiles of HDL2-C/HDL3-C, this lipid ratio was associated with a higher risk of CHD (92% higher risk in the fourth quartile). Conclusions The results showed that HDL3-C, but not HDL2-C, was primarily responsible for the protective effect of HDL-C against CVD, particularly CHD, in Iranian adults.
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Affiliation(s)
- Abdolreza Chary
- Department of Biology, Payame Noor University, Tehran, Iran
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Tohidi
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mitra Hasheminia
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Melika Golmohammadi
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Mehdi Hedayati
- Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fereidoun Azizi
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farzad Hadaegh
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Riyad P, Purohit A, Sen K, Panwar A, Ram H. HMG – CoA reductase inhibition mediated hypocholesterolemic potential of myricetin and quercetin: in-silico and in-vivo studies. CYTA - JOURNAL OF FOOD 2023. [DOI: 10.1080/19476337.2022.2162976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Priyanka Riyad
- Department of Zoology, Jai Narain Vyas University, Jodhpur, India
| | - Ashok Purohit
- Department of Zoology, Jai Narain Vyas University, Jodhpur, India
| | - Karishma Sen
- Department of Zoology, Jai Narain Vyas University, Jodhpur, India
| | - Anil Panwar
- Department of Molecular Biology, Biotechnology & Bioinformatics, College of Basic Sciences & Humanities, CCS Haryana Agricultural University, Hisar, India
| | - Heera Ram
- Department of Zoology, Jai Narain Vyas University, Jodhpur, India
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4
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Thakkar H, Vincent V, Roy A, Singh A. High density lipoprotein heterogeneity & function among Indians with coronary artery disease. Indian J Med Res 2023; 158:292-302. [PMID: 37861624 PMCID: PMC10720966 DOI: 10.4103/ijmr.ijmr_1212_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Indexed: 10/21/2023] Open
Abstract
Background & objectives Impaired high density lipoprotein (HDL) functionality has been shown to be associated with cardiovascular disease risk. The study was aimed to identify the alterations in HDL function [antioxidative activity (AOA)] and subfraction distribution between acute coronary syndrome (ACS) and stable coronary artery disease (SCAD) individuals and analysing the accuracy of HDL parameters to discriminate between the groups. Methods HDL subfraction distribution analysis was performed in 200 coronary artery disease patients (ACS and SCAD) and 60 control individuals using dextran sulphate, heparin and manganese chloride precipitation method. In terms of HDL function, AOA was evaluated by dihydrorhodamine-based fluorescent cell-free assay and paraoxonase (PON1) enzyme paraoxonase and arylesterase activity. Results We found that higher AOA [odds ratio (95% confidence interval {CI})]: 0.09 (0.02-0.44), P<0.01 for SCAD; 0.008 (0.001-0.07), P<0.001 for ACS and higher PON1 activity [0.22 (0.8-0.59), P<0.01 for SCAD; 0.16 (0.06-0.4), P<0.001 for ACS] were associated with a lower odds of developing coronary artery disease (CAD). AOA of apoB-depleted serum was significantly correlated with HDL2-C/HDL3-C (HDL-cholesterol) ratio in controls (r=-0.31, P=0.01) and ACS (r=-0.18, P=0.04). It was observed that AOA and HDL subfraction distribution together could discriminate between the two groups of CAD with an accuracy of 72.8 per cent (P=0.004). Interpretation & conclusions Impaired AOA and altered subfraction distribution of HDL may be responsible for its diminished anti-athero protective activity and can discriminate between the two groups of CAD individuals.
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Affiliation(s)
- Himani Thakkar
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Vinnyfred Vincent
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Ambuj Roy
- Department of Cardiology, All India Institute of Medical Sciences, New Delhi, India
| | - Archna Singh
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
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Jaipal N, Ram H, Kumar P, Charan J, Kashyap P, Chowdhury S, Tripathi R, Kumar S, Singh BP, Panwar A. Statins mimic and free radical scavenging potential of phytoconstituents of methanolic pod extract of Prosopis cineraria (L.) Druce. VEGETOS 2023. [DOI: 10.1007/s42535-023-00677-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/27/2023] [Accepted: 06/30/2023] [Indexed: 09/25/2023]
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Fabrication of Nutraceutical Beverage from Saffron (Crocus sativus L.) Extract and Studying Its Health Effects. INTERNATIONAL JOURNAL OF FOOD SCIENCE 2023. [DOI: 10.1155/2023/7130266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A saffron extract-based beverage (SEBB) was formulated and characterized based on its sensory attributes and health benefits. The main bioactive compounds of saffron extract (crocin and safranal) were quantified. Three formulations of SEBB were prepared based on the sucrose concentration: SEBB 1 contained 65 g of sucrose per 500 ml, SEBB 2 contained 17.5 g, and SEBB 3 contained 79.5 g. The SEBB most desired by consumers was then subjected to biochemical analysis to evaluate its antioxidative effects on the damage induced by food contaminated with carbon tetrachloride (CCl4). Fifteen albino rats were split into five groups and treated with different doses of CCl4 or SEBB according to the planned animal experiment for 62 days. Sensory evaluation illustrated that SEBB 1 had the highest acceptability scores. The content of crocin and safranal was 23.039 and 4.135 ppm, respectively. The SEBB ameliorated the increased activity of enzymes involved in liver and kidney function and improved the total antioxidant capacity, blood glucose, and lipid profile.
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Jaipal N, Ram H, Charan J, Dixit A, Singh G, Singh BP, Kumar A, Panwar A. HMG‐CoA reductase inhibition medicated hypocholesterolemic and antiatherosclerotic potential of phytoconstituents of an aqueous pod extract of
Prosopis cineraria
(L.) Druce: In silico, in vitro, and in vivo studies. EFOOD 2022. [DOI: 10.1002/efd2.42] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Noopur Jaipal
- Department of Zoology Jai Narain Vyas University Jodhpur Rajasthan India
| | - Heera Ram
- Department of Zoology Jai Narain Vyas University Jodhpur Rajasthan India
| | - Jaykaran Charan
- Department of Pharmacology All India Institute of Medical Sciences Jodhpur Rajasthan India
| | | | - Garima Singh
- Department of Botany Pachhunga University College Aizawl Mizoram India
| | - Bhim P. Singh
- Department of Agriculture & Environmental Sciences (AES) National Institute of Food Technology Entrepreneurship & Management (NIFTEM) Sonepat Haryana India
| | - Ashok Kumar
- Centre for Systems Biology and Bioinformatics Panjab University Chandigarh Punjab India
| | - Anil Panwar
- Centre for Systems Biology and Bioinformatics Panjab University Chandigarh Punjab India
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Huang D, Zhu H, Zhu Y, Dang Q, Yang Q, Zhang Y, Cai X, Zhao X, Liang N, Wang H, Yu H. Association of maternal HDL2-c concentration in the first trimester and the risk of large for gestational age birth. Lipids Health Dis 2022; 21:71. [PMID: 35971146 PMCID: PMC9380360 DOI: 10.1186/s12944-022-01688-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 08/08/2022] [Indexed: 11/10/2022] Open
Abstract
Background Maternal lipid levels during pregnancy are critical for fetal development. Recent studies revealed that high-density lipoprotein cholesterol (HDL-c) levels during pregnancy were negatively correlated with birthweight. High-density lipoprotein 2 cholesterol (HDL2-c) is one of the major subclasses of HDL-c, and its relationship with birthweight is unclear. Association of HDL2-c concentration in the first trimester and risk of large for gestational age (LGA) was explored. Methods This study recruited pregnant women who registered in Fuxing Hospital from October 2018 to January 2020, had regular obstetric examinations during pregnancy, and delivered between June 2019 and September 2020. Finally, 549 participants were recruited for the study. Maternal demographic characteristics and venous blood were collected at the 6th-14th gestational week, and serum total cholesterol (TC), triglyceride (TG), HDL-c, HDL2-c, high-density lipoprotein 3 cholesterol (HDL3-c), and low-density lipoprotein cholesterol (LDL-c) concentrations were detected. Neonatal characteristics were collected at delivery. A logistic regression model was used to explore the relationship between the first trimester HDL2-c concentration and LGA incidence. A nomogram was developed, and the performance was evaluated with a concordance index. Results Seventy-five mothers delivered LGA infants, and the LGA incidence was 13.66%. LGA mothers had significantly lower serum HDL-c and HDL2-c concentrations than appropriate for gestational age (AGA) mothers. A logistic regression model showed that HDL2-c concentration was negatively correlated with LGA risk (odds ratio (OR) = 0.237, 95% confidence intervals (CI): 0.099–0.567, P = 0.001) when adjusted for age, prepregnancy body mass index (BMI), and parity. A nomogram was generated using all these risk factors. The area under the curve (AUC) was 0.663 (95% CI: 0.593–0.732). Conclusions Maternal HDL2-c concentration in the first trimester was negatively correlated with the risk of LGA. Supplementary Information The online version contains supplementary material available at 10.1186/s12944-022-01688-w.
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Affiliation(s)
- Dongxu Huang
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, No.10, Xitoutiao, Youanmenwai, Fengtai District, Beijing, 100069, People's Republic of China
| | - Haiyan Zhu
- Obstetrical Department, Fuxing Hospital, Capital Medical University, Beijing, 100045, People's Republic of China
| | - Yandi Zhu
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, No.10, Xitoutiao, Youanmenwai, Fengtai District, Beijing, 100069, People's Republic of China
| | - Qinyu Dang
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, No.10, Xitoutiao, Youanmenwai, Fengtai District, Beijing, 100069, People's Republic of China
| | - Qian Yang
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, No.10, Xitoutiao, Youanmenwai, Fengtai District, Beijing, 100069, People's Republic of China
| | - Yadi Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, No.10, Xitoutiao, Youanmenwai, Fengtai District, Beijing, 100069, People's Republic of China
| | - Xiaxia Cai
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, No.10, Xitoutiao, Youanmenwai, Fengtai District, Beijing, 100069, People's Republic of China
| | - Xiaoyan Zhao
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, No.10, Xitoutiao, Youanmenwai, Fengtai District, Beijing, 100069, People's Republic of China
| | - Ning Liang
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, No.10, Xitoutiao, Youanmenwai, Fengtai District, Beijing, 100069, People's Republic of China
| | - Hongliang Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, No.10, Xitoutiao, Youanmenwai, Fengtai District, Beijing, 100069, People's Republic of China
| | - Huanling Yu
- Department of Nutrition and Food Hygiene, School of Public Health, Capital Medical University, No.10, Xitoutiao, Youanmenwai, Fengtai District, Beijing, 100069, People's Republic of China.
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Charan J, Riyad P, Ram H, Purohit A, Ambwani S, Kashyap P, Singh G, Hashem A, Abd_Allah EF, Gupta VK, Kumar A, Panwar A. Ameliorations in dyslipidemia and atherosclerotic plaque by the inhibition of HMG-CoA reductase and antioxidant potential of phytoconstituents of an aqueous seed extract of Acacia senegal (L.) Willd in rabbits. PLoS One 2022; 17:e0264646. [PMID: 35239727 PMCID: PMC8893677 DOI: 10.1371/journal.pone.0264646] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 02/14/2022] [Indexed: 11/19/2022] Open
Abstract
The assigned work was aimed to examine the capability of phytoconstituents of an aqueous seed extract of Acacia senegal (L.) Willd to inhibit HMG-CoA reductase and regression of the atherosclerotic plaque. The chemical fingerprinting of the test extract was assessed by LC-MS/MS. Consequently, the analyses of in-vitro, in-vivo, and in-silico were executed by using the standard protocols. The in-vitro assessment of the test extract revealed 74.1% inhibition of HMG-CoA reductase. In-vivo assessments of the test extract indicated that treated hypercholesterolemic rabbits exhibited a significant (P≤0.001) amelioration in the biomarker indices of the dyslipidaemia i.e., atherogenic index, Castelli risk index(I&II), atherogenic coefficient along with lipid profile. Subsequently, significant reductions were observed in the atherosclerotic plaque and antioxidant levels. The in-silico study of molecular docking shown interactions capabilities of the leading phytoconstituents of the test extract i.e., eicosanoic acid, linoleic acid, and flavan-3-ol with target protein of HMG-CoA reductase. The values of RSMF and potential energy of top docked complexes were show significant interactions. Accordingly, the free energy of solvation, interaction angle, radius of gyration and SASA were shown significant stabilities of top docked complex. The cumulative data of results indicate phytoconstituents of an aqueous seed extract of Acacia senegal have capabilities to inhibit the HMG-CoA reductase and improve the levels of antioxidants.
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Affiliation(s)
- Jaykaran Charan
- Department of Pharmacology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Priyanka Riyad
- Department of Zoology, Jai Narain Vyas University, Jodhpur, Rajasthan, India
| | - Heera Ram
- Department of Zoology, Jai Narain Vyas University, Jodhpur, Rajasthan, India
| | - Ashok Purohit
- Department of Zoology, Jai Narain Vyas University, Jodhpur, Rajasthan, India
| | - Sneha Ambwani
- Department of Pharmacology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Priya Kashyap
- University School of Biotechnology, GGS Indraprastha University, New Delhi, India
| | - Garima Singh
- Department of Botany, Pachhunga University College, Aizawl, Mizoram, India
| | - Abeer Hashem
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Elsayed Fathi Abd_Allah
- Plant Production Department, College of Food and Agricultural Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Vijai Kumar Gupta
- Center for Safe and Improved Food & Biorefining and Advanced Biomaterials Research Center, SRUC, Kings Buildings, Scotland, United Kingdom
| | - Ashok Kumar
- Centre for Systems biology and bioinformatics, Panjab University Chandigarh, Punjab, India
| | - Anil Panwar
- Centre for Systems biology and bioinformatics, Panjab University Chandigarh, Punjab, India
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Chouhan H, Purohit A, Ram H, Chowdhury S, Kashyap P, Panwar A, Kumar A. The interaction capabilities of phytoconstituents of ethanolic seed extract of cumin (
Cuminum cyminum
L.) with HMG‐CoA reductase to subside the hypercholesterolemia: A mechanistic approach. FOOD FRONTIERS 2021. [DOI: 10.1002/fft2.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
| | - Ashok Purohit
- Department of Zoology Jai Narain Vyas University Jodhpur India
| | - Heera Ram
- Department of Zoology Jai Narain Vyas University Jodhpur India
| | - Suman Chowdhury
- University School of Biotechnology Guru Gobind Singh Indraprastha University New Delhi India
| | - Priya Kashyap
- University School of Biotechnology Guru Gobind Singh Indraprastha University New Delhi India
| | - Anil Panwar
- Department of Molecular Biology Biotechnology and Bioinformatics CCS Haryana Agricultural University Hisar India
- Centre for System Biology and Bioinformatics Panjab University Chandigarh India
| | - Ashok Kumar
- Centre for System Biology and Bioinformatics Panjab University Chandigarh India
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Doğan K, Şeneş M, Karaca A, Kayalp D, Kan S, Gülçelik NE, Aral Y, Yücel D. HDL subgroups and their paraoxonase-1 activity in the obese, overweight and normal weight subjects. Int J Clin Pract 2021; 75:e14969. [PMID: 34626508 DOI: 10.1111/ijcp.14969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 09/10/2021] [Accepted: 10/07/2021] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Obesity and overweight are significant public health problems because of higher risk for coronary artery disease (CAD). It is very important to determine new predictive markers to identify the CAD risk in obese and overweight. To aim this, we analysed HDL-C subgroups (HDL2-C and HDL3-C) and their paraoxonase-1 (PON-1) activity in obese, overweight and normal weight subjects. METHOD 71 obese, 40 overweight and 30 healthy subjects as a control group were enrolled the study. Serum lipids levels were determined with enzymatic colorimetric method. Further, PON-1 activities and HDL-C levels were determined by spectrophotometric methods. Non-HDL3-C concentrations were calculated with the subtraction of HDL3-C from total HDL-C. RESULTS The mean serum levels of total HDL-C, HDL3-C, Non-HDL3-C and ApoA1 were higher in control group than obese and overweight groups. There were a statistically significant difference between obese and control group in terms of Lp(a), hsCRP and HOMA index. Higher total PON-1, non-HDL3 PON-1 and HDL3 PON-1 activities were found in the control group compared with obese and overweight groups. Total HDL was weakly negative correlated with the HOMA index, BMI and waist circumference. There was a weak negative correlation between non-HDL3-C and waist circumference. CONCLUSION Altered HDL-subgroups pattern and decreased PON-1 activities may cause increased risk for CVD in obese and overweight individuals. Therefore determination of HDL subgroups and their PON-1 activity may improve risk prediction compared with measuring total HDL-C levels and its PON-1 activity alone. Body weight and insulin resistance appear to have a role in the decreased HDL-C levels and PON-1activity in obese. Further studies should be conducted to shed more light on impacts of these markers in CVD.
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Affiliation(s)
- Kübra Doğan
- Department of Clinical Biochemistry, Sivas Numune State Hospital, Ministry of Health, Sivas, Turkey
| | - Mehmet Şeneş
- Department of Clinical Biochemistry, Ankara Training and Research Hospital, Ministry of Health Ankara, Turkey
| | - Anara Karaca
- Department of Endocrinology and Metabolism, Ankara Training and Research Hospital, Ministry of Health Ankara, Turkey
| | - Damla Kayalp
- Department of Clinical Biochemistry, Yozgat City Hospital, Ministry of Health, Yozgat, Turkey
| | - Seyfullah Kan
- Department of Endocrinology and Metabolism, Faculty of Medicine, Süleyman Demirel University, Isparta, Turkey
| | - Neşe Ersöz Gülçelik
- Department of Endocrinology and Metabolism, Gülhane Training and Research Hospital, Ministry of Health Ankara, Turkey
| | - Yalçın Aral
- Department of Endocrinology and Metabolism, Faculty of Medicine, Yozgat Bozok University, Yozgat, Turkey
| | - Doğan Yücel
- Department of Clinical Biochemistry, Faculty of Medicine, Lokman Hekim University, Ankara, Turkey
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Thakkar H, Vincent V, Roy A, Gautam AK, Kutum R, Ramakrishnan L, Singh S, Singh A. Determinants of high-density lipoprotein (HDL) functions beyond proteome in Asian Indians: exploring the fatty acid profile of HDL phospholipids. Mol Cell Biochem 2021; 477:559-570. [PMID: 34843015 DOI: 10.1007/s11010-021-04304-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 11/17/2021] [Indexed: 02/02/2023]
Abstract
Impaired high-density lipoprotein (HDL) functions are associated with development of coronary artery disease. In this study, we explored the quantitative differences in HDL (i.e. HDL proteome and fatty acid profile of HDL phospholipids) underlying the functional deficits associated with acute coronary syndrome (ACS). The relationship between HDL function and composition was assessed in 65 consecutive ACS patients and 40 healthy controls. Cholesterol efflux capacity (CEC) of HDL and lecithin cholesterol acyl transferase (LCAT) activity were significantly lower in patients with ACS compared to controls. In HDL proteome analysis, HDL isolated from ACS individuals was enriched in apolipoprotein C2 (inhibitor of LCAT), apolipoprotein C4 and serum amyloid A proteins and was deficient in apolipoprotein A-I and A-II. The fatty acid profile of HDL phospholipids analyzed using gas chromatography showed significantly lower percentages of stearic acid (17.4 ± 2.4 vs 15.8 ± 2.8, p = 0.004) and omega-3 fatty acids [eicosapentaenoic acid (1.0 (0.6-1.4) vs 0.7 (0.4-1.0), p = 0.009) and docosahexaenoic acid (1.5 ± 0.7 vs 1.3 ± 0.5, p = 0.03)] in ACS patients compared to controls. Lower percentages of these fatty acids in HDL were associated with higher odds of developing ACS. Our results suggest that distinct phospholipid fatty acid profiles found in HDL from ACS patients could be one of the contributing factors to the deranged HDL functions in these patients apart from the protein content and the inflammatory conditions.
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Affiliation(s)
- Himani Thakkar
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Vinnyfred Vincent
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Ambuj Roy
- Department of Cardiology, All India Institute of Medical Sciences, New Delhi, India
| | - Ajay Kumar Gautam
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Rintu Kutum
- Informatics and Big Data Unit, Council of Scientific and Industrial Research (CSIR), Institute of Genomics and Integrative Biology (IGIB), New Delhi, India
| | - Lakshmy Ramakrishnan
- Department of Cardiac Biochemistry, Cardiothoracic and Neurosciences Centre, All India Institute of Medical Sciences, New Delhi, India
| | - Sandeep Singh
- Department of Cardiology, All India Institute of Medical Sciences, New Delhi, India
| | - Archna Singh
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India.
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Song SO, Hwang YC, Ryu HU, Kahn SE, Leonetti DL, Fujimoto WY, Boyko EJ. Lower High-Density Lipoprotein Cholesterol Concentration Is Independently Associated with Greater Future Accumulation of Intra-Abdominal Fat. Endocrinol Metab (Seoul) 2021; 36:835-844. [PMID: 34474518 PMCID: PMC8419607 DOI: 10.3803/enm.2021.1130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 07/15/2021] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Both intra-abdominal fat (IAF) and high-density lipoprotein cholesterol (HDL-C) are known to be associated with cardiometabolic health. We evaluated whether the accumulation of computed tomography (CT)-measured IAF over 5 years was related to baseline HDL-C concentration in a prospective cohort study. METHODS All participants were Japanese-Americans between the ages of 34 and 74 years. Plasma HDL-C concentration and CT measurements of IAF, abdominal subcutaneous fat (SCF), and thigh SCF cross-sectional areas were assessed at baseline and at 5-year follow-up visits. RESULTS A total of 397 subjects without diabetes were included. The mean±standard deviation HDL-C concentration was 51.6±13.0 mg/dL in men and 66.0±17.0 mg/dL in women, and the IAF was 91.9±48.4 cm2 in men and 63.1±39.5 cm2 in women. The baseline plasma concentration of HDL-C was inversely associated with the change in IAF over 5 years using multivariable regression analysis with adjustment for age, sex, family history of diabetes, weight change over 5 years, and baseline measurements of body mass index, IAF, abdominal SCF, abdominal circumference, thigh SCF, and homeostatic model assessment for insulin resistance. CONCLUSION These results demonstrate that HDL-C concentration significantly predicts future accumulation of IAF over 5 years independent of age, sex, insulin sensitivity, and body composition in Japanese-American men and women without diabetes.
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Affiliation(s)
- Sun Ok Song
- Epidemiologic Research and Information Center, VA Puget Sound Health Care System, Seattle, WA,
USA
- Department of Medicine, University of Washington School of Medicine, Seattle, WA,
USA
- Division of Endocrinology and Metabolism, Department of Internal Medicine, National Health Insurance Service Ilsan Hospital, Goyang,
Korea
| | - You-Cheol Hwang
- Division of Endocrinology and Metabolism, Department of Medicine, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, Seoul,
Korea
| | - Han Uk Ryu
- Department of Neurology, Jeonbuk National University Medical School, Jeonju,
Korea
| | - Steven E. Kahn
- Hospital and Specialty Medicine Service, VA Puget Sound Health Care System, Seattle, WA,
USA
- Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, University of Washington School of Medicine, Seattle, WA,
USA
| | - Donna L. Leonetti
- Department of Anthropology, University of Washington, Seattle, WA,
USA
| | - Wilfred Y. Fujimoto
- Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, University of Washington School of Medicine, Seattle, WA,
USA
| | - Edward J. Boyko
- Epidemiologic Research and Information Center, VA Puget Sound Health Care System, Seattle, WA,
USA
- Department of Medicine, University of Washington School of Medicine, Seattle, WA,
USA
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14
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Extra Virgin Olive Oil Prevents the Age-Related Shifts of the Distribution of HDL Subclasses and Improves Their Functionality. Nutrients 2021; 13:nu13072235. [PMID: 34209930 PMCID: PMC8308442 DOI: 10.3390/nu13072235] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 12/30/2022] Open
Abstract
High-density lipoproteins (HDL) maintain cholesterol homeostasis through the role they play in regulating reverse cholesterol transport (RCT), a process by which excess cholesterol is transported back to the liver for elimination. However, RCT can be altered in the presence of cardiovascular risk factors, such as aging, which contributes to the increase in the incidence of cardiovascular diseases (CVD). The present study was aimed at investigating the effect of extra virgin olive oil (EVOO) intake on the cholesterol efflux capacity (CEC) of HDL, and to elucidate on the mechanisms by which EVOO intake improves the anti-atherogenic activity of HDL. A total of 84 healthy women and men were enrolled and were distributed, according to age, into two groups: 27 young (31.81 ± 6.79 years) and 57 elderly (70.72 ± 5.6 years) subjects. The subjects in both groups were given 25 mL/d of extra virgin olive oil (EVOO) for 12 weeks. CEC was measured using J774 macrophages radiolabeled with tritiated cholesterol ((3H) cholesterol). HDL subclass distributions were analyzed using the Quantimetrix Lipoprint® system. The HDL from the elderly subjects exhibited a lower level of CEC, at 11.12% (p < 0.0001), than the HDL from the young subjects. The CEC of the elderly subjects returned to normal levels following 12 weeks of EVOO intake. An analysis of the distribution of HDL subclasses showed that HDL from the elderly subjects were composed of lower levels of large HDL (L-HDL) (p < 0.03) and higher levels of small HDL (S-HDL) (p < 0.002) compared to HDL from the young subjects. A multiple linear regression analysis revealed a positive correlation between CEC and L-HDL levels (r = 0.35 and p < 0.001) as well as an inverse correlation between CEC and S-HDL levels (r = −0.27 and p < 0.01). This correlation remained significant even when several variables, including age, sex, and BMI as well as low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and glucose levels (β = 0.28, p < 0.002, and β = 0.24, p = 0.01) were accounted for. Consuming EVOO for 12 weeks modulated the age-related difference in the distribution of HDL subclasses by reducing the level of S-HDL and increasing the level of intermediate-HDL/large-HDL (I-HDL/L-HDL) in the elderly subjects. The age-related alteration of the CEC of HDL was due, in part, to an alteration in the distribution of HDL subclasses. A diet enriched in EVOO improved the functionality of HDL through an increase in I-HDL/L-HDL and a decrease in S-HDL.
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15
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Wu X, He Z, Sun R, Xie X, Chen Q, Wang J, Bao J, Huang J, Jiang Y, Zhang Y, Wang J. Large HDL 2 combined with inflammatory factors as superior predictors for coronary artery disease than small HDL 3. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:672. [PMID: 33987370 PMCID: PMC8106016 DOI: 10.21037/atm-21-948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background This study investigated whether combinations of high-density lipoprotein (HDL) subfractions and inflammatory markers would add value to coronary artery disease (CAD) prediction. Methods Non-CAD subjects (n=245) were stratified into low/moderate/high-Framingham risk (L/M/H-FR) groups and 180 CAD patients were enrolled. Levels of HDL-C, HDL2, HDL3, monocyte chemoattractant protein-1 (MCP-1), and high-sensitivity C-reactive protein (hsCRP) were measured. Multivariable logistic models for CAD were estimated with a single parameter or all parameters together after adjustment for conventional risk factors (CRFs), and Z statistics, net reclassification improvement (NRI), and integrated discrimination improvement (IDI) were used to compare discrimination among different models. Results The results show that HDL-C, HDL2, and HDL3 gradually decreased, while MCP-1 and hsCRP gradually increased from L/M/H-FR to the CAD group. When applying a single factor in the CRFs-adjusted models, HDL-C (OR 0.011, 95% CI, 0.002–0.071, P<0.05) and HDL2 (OR 0.000072, 95% CI, 0.000001–0.004, P<0.05), but not HDL3, were significantly related to CAD risk. Only HDL2 (OR 0.000072, 95% CI, 0.000001–0.004, P<0.001) remained significant when applying all HDL parameters. In the model including all HDL and inflammatory parameters, HDL2 (OR 0.001, 95% CI, 0.000027–0.051), MCP-1 (OR 1.066, 95% CI, 1.039–1.094), and hsCRP (OR 1.130, 95% CI, 1.041–1.227) showed significant differences (all P<0.05). This combined model showed improved discrimination over the models with a single factor (P<0.05) or all HDL parameters (Z=3.299, NRI =0.179, IDI =0.081, P<0.001). Conclusions Large HDL2 is superior to small HDL3 in the inverse association with CAD. The combination of HDL2, MCP-1, and hsCRP with CRFs provides an optimal prediction for CAD.
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Affiliation(s)
- Xiaoying Wu
- Cardiovascular Medicine Department, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhijian He
- Cardiovascular Medicine Department, The First Affiliated Hospital/School of Clinical Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Runlu Sun
- Cardiovascular Medicine Department, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiangkun Xie
- Cardiovascular Medicine Department, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qingqun Chen
- Cardiovascular Medicine Department, Qingyuan People's Hospital, Qingyuan, China
| | - Junjie Wang
- Cardiovascular Medicine Department, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jinlan Bao
- Comprehensive Department, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jingjing Huang
- Cardiovascular Medicine Department, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yuan Jiang
- Cardiovascular Medicine Department, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yuling Zhang
- Cardiovascular Medicine Department, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jingfeng Wang
- Cardiovascular Medicine Department, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
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Matsushima-Nagata K, Sugiuchi H, Anraku K, Takao T, Kondo Y, Ishitsuka Y, Irikura M, Irie T, Matsumura T, Araki E, Sumida M, Katayama Y, Kayahara N. A homogeneous assay to determine high-density lipoprotein subclass cholesterol in serum. Anal Biochem 2020; 613:114019. [PMID: 33189705 DOI: 10.1016/j.ab.2020.114019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 11/06/2020] [Accepted: 11/10/2020] [Indexed: 12/15/2022]
Abstract
Existing methods to measure high-density lipoprotein cholesterol (HDL-C) subclasses (HDL2-C and HDL3-C) are complex and require proficiency, and thus there is a need for a convenient, homogeneous assay to determine HDL-C subclasses in serum. Here, cholesterol reactivities in lipoprotein fractions [HDL2, HDL3, low-density lipoprotein (LDL), and very-low-density lipoprotein (VLDL)] toward polyethylene glycol (PEG)-modified enzymes were determined in the presence of varying concentrations of dextran sulfate and magnesium nitrate. Particle sizes formed in the lipoprotein fractions were measured by dynamic light scattering. We optimized the concentrations of dextran sulfate and magnesium nitrate before assay with PEG-modified enzymes to provide selectivity for HDL3-C. On addition of dextran sulfate and magnesium nitrate, the sizes of particles of HDL2, LDL, and VLDL increased, but the size of HDL3 fraction particles remained constant, allowing only HDL3-C to participate in coupled reactions with the PEG-modified enzymes. In serum from both healthy volunteers and patients with type 2 diabetes, a good correlation was observed between the proposed assay and ultracentrifugation in the determination of HDL-C subclasses. The assay proposed here enables convenient and accurate determination of HDL-C subclasses in serum on a general automatic analyzer and enables low-cost routine diagnosis without preprocessing.
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Affiliation(s)
| | | | | | - Takako Takao
- Department of Clinical Chemistry and Informatics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yuki Kondo
- Department of Clinical Chemistry and Informatics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yoichi Ishitsuka
- Department of Clinical Chemistry and Informatics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Mitsuru Irikura
- Laboratory of Evidence-Based Pharmacotherapy, Daiichi University of Pharmacy, Fukuoka, Japan
| | - Tetsumi Irie
- Department of Clinical Chemistry and Informatics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Takeshi Matsumura
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Eiichi Araki
- Department of Metabolic Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Mizuki Sumida
- Research Center, Hitachi Chemical Diagnostics Systems Co., Ltd., Shizuoka, Japan
| | - Yuki Katayama
- Research Center, Hitachi Chemical Diagnostics Systems Co., Ltd., Shizuoka, Japan
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17
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In Vivo Studies of Inoculated Plants and In Vitro Studies Utilizing Methanolic Extracts of Endophytic Streptomyces sp. Strain DBT34 Obtained from Mirabilis jalapa L. Exhibit ROS-Scavenging and Other Bioactive Properties. Int J Mol Sci 2020; 21:ijms21197364. [PMID: 33036127 PMCID: PMC7582327 DOI: 10.3390/ijms21197364] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/16/2020] [Accepted: 09/21/2020] [Indexed: 02/06/2023] Open
Abstract
Reactive oxygen species (ROS) and other free radicals cause oxidative damage in cells under biotic and abiotic stress. Endophytic microorganisms reside in the internal tissues of plants and contribute to the mitigation of such stresses by the production of antioxidant enzymes and compounds. We hypothesized that the endophytic actinobacterium Streptomyces sp. strain DBT34, which was previously demonstrated to have plant growth-promoting (PGP) and antimicrobial properties, may also have a role in protecting plants against several stresses through the production of antioxidants. The present study was designed to characterize catalase and superoxide dismutase (SOD), two enzymes involved in the detoxification of ROS, in methanolic extracts derived from six endophytic actinobacterial isolates obtained from the traditional medicinal plant Mirabilis jalapa. The results of a preliminary screen indicated that Streptomyces sp. strain DBT34 was the best overall strain and was therefore used in subsequent detailed analyses. A methanolic extract of DBT34 exhibited significant antioxidant potential in 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS) assays. The cytotoxicity of DBT34 against liver hepatocellular cells (HepG2) was also determined. Results indicated that methanolic extract of Streptomyces sp. strain DBT34 exhibited significant catalase and SOD-like activity with 158.21 U resulting in a 55.15% reduction in ROS. The IC50 values of a crude methanolic extract of strain DBT34 on DPPH radical scavenging and ABTS radical cation decolorization were 41.5 µg/mL and 47.8 µg/mL, respectively. Volatile compounds (VOC) were also detected in the methanolic extract of Streptomyces sp. strain DBT34 using GC-MS analysis to correlate their presence with bioactive potential. Treatments of rats with DBT34 extract and sitagliptin resulted in a significant (p ≤ 0.001) reduction in total cholesterol, LDL-cholesterol, and VLDL-cholesterol, relative to the vehicle control and a standard diabetic medicine. The pancreatic histoarchitecture of vehicle control rats exhibited a compact volume of isolated clusters of Langerhans cells surrounded by acinies with proper vaculation. An in-vivo study of Streptomyces sp. strain DBT34 on chickpea seedlings revealed an enhancement in its antioxidant potential as denoted by lower IC50 values for DPPH and ABTS radical scavenging activity under greenhouse conditions in relative comparison to control plants. Results of the study indicate that strain DBT34 provides a defense mechanism to its host through the production of antioxidant therapeutic agents that mitigate ROS in hosts subjected to biotic and abiotic stresses.
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Mcpherson PA. Paradoxical Hypercholesterolemia in an Otherwise Healthy Adult Man. Lab Med 2020; 51:217-220. [PMID: 31414129 DOI: 10.1093/labmed/lmz036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Hypercholesterolemia is characterized by serum cholesterol levels greater than 5 mmol per L. However, the distribution of cholesterol among lipoprotein classes has a significant bearing on diagnosis: high-low-density lipoprotein (LDL) cholesterol suggests familial hypercholesterolemia, whereas high-high-density lipoprotein (HDL) cholesterol is associated with hyperalphalipoproteinemia. On routine screening, a 23-year-old man presented with a total cholesterol level of 7.6 mmol per L but was subsequently found to have an HDL cholesterol level of 5.6 mmol per L. The clinical picture was confounded by his use of red yeast rice extract, a popular health supplement with hypolipidemic effects. In this case individual, the use of red yeast rice extract caused a hyperlipidemic state, ostensibly through downregulation of cholesteryl ester transfer protein. This case emphasizes the extended role of laboratory medicine in complex cases of hyperlipidemia.
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Affiliation(s)
- Peter A Mcpherson
- Centre for Applied Science, Belfast Metropolitan College, Belfast, Northern Ireland
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19
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Ram H, Jaipal N, Charan J, Kashyap P, Kumar S, Tripathi R, Singh BP, Siddaiah CN, Hashem A, Tabassum B, Abd Allah EF. Phytoconstituents of an ethanolic pod extract of Prosopis cineraria triggers the inhibition of HMG-CoA reductase and the regression of atherosclerotic plaque in hypercholesterolemic rabbits. Lipids Health Dis 2020; 19:6. [PMID: 31931807 PMCID: PMC6958682 DOI: 10.1186/s12944-020-1188-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 01/06/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The HMG-CoA reductase is key enzyme of cholesterol biosynthesis which potentially contributes in management of hypercholesterolemia. The present study was designed to assess the inhibitory effect of phytoconstituents of an ethanolic extract of Prosopis cineraria pods on HMG - CoA reductase and regression potential of atherosclerotic plaque. METHODS Healthy, adult male, albino rabbits in which hypercholesterolemia was induced by supplying the high fat diet and a supplement of cholesterol powder with coconut oil (500 mg/5 ml/Day/kg body weight) for 15 days, were used as a disease model. Phytochemical analysis of an ethanolic extract Prosopis cineraria pods was conducted using LCMS, GCMS and FTIR analysis. Further, in-vitro, in-vivo and in-silico assessments were performed. RESULTS The in-vitro assessment of HMG -CoA reductase activity indicated a 67.1 and 97.3% inhibition by the extract and a standard drug (Pravastatin), respectively. Additionally, an in-silico evaluation was made using appropriate docking software and results also indicated as significant interactions of the identified compounds with the target enzyme. Treatment of rabbits with the ethanolic extract of P. cineraria pod resulted in significant (P ≤ 0.001) reductions in total cholesterol, LDL cholesterol, VLDL cholesterol, and triglyceride. Accordingly, reductions were occurred in atherosclerotic plaque, intima and media of aortal wall along with lumen volume of the aorta significantly increased (P ≤ 0.001). CONCLUSION It can be illustrating that the ethanolic extract of Prosopis cineraria pod contains potent bioactive phytocompounds might be inhibit HMG - CoA reductase and have regression potential of atherosclerotic plaque.
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Affiliation(s)
- Heera Ram
- Department of Zoology, Jai Narain Vyas University, Jodhpur, Rajasthan, 342001, India.
| | - Noopur Jaipal
- Department of Zoology, Jai Narain Vyas University, Jodhpur, Rajasthan, 342001, India
| | - Jaykaran Charan
- Department of Pharmacology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, 342001, India
| | - Priya Kashyap
- UniversitySchool of Biotechnology, GGS Indraprastha University, Dwarka, Sector 16C, New Delhi, 110075, India
| | - Suresh Kumar
- UniversitySchool of Biotechnology, GGS Indraprastha University, Dwarka, Sector 16C, New Delhi, 110075, India
| | - Rashmi Tripathi
- Department of Bioscience and Biotechnology, Banasthali University, Banasthali, Rajasthan, 304022, India
| | - Bhim Pratap Singh
- Department of Biotechnology, Mizoram University, Aizawl, Mizoram, 796004, India
| | | | - Abeer Hashem
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box. 2460, Riyadh, 11451, Saudi Arabia
- Mycology and Plant Disease Survey Department, Plant Pathology Research Institute, ARC, Giza, 12511, Egypt
| | - Baby Tabassum
- Toxicology Laboratory, Department of Zoology, Govt. Raza P.G. College, Rampur, U.P, 244901, India
| | - Elsayed Fathi Abd Allah
- Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box. 2460, Riyadh, 11451, Saudi Arabia
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20
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Lien TF, Lan YS. Effects of nanoparticle chromium mixed with γ-polyglutamic acid on the chromium bioavailability, growth performance, serum parameters and carcass traits of pigs. ANIMAL PRODUCTION SCIENCE 2019. [DOI: 10.1071/an18441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Because chromium is a mineral that is difficult to absorb, nanotechnology was used to produce nanoparticle trivalent chromium, which has a reduced particle size and increased surface area to increase chromium bioavailability. The aim of the present study was to investigate the effect of dietary supplementation nanoparticle trivalent chromium with or without γ-polyglutamic acid (γ-PGA) on the chromium bioavailability, growth performance, serum parameters and carcass traits of pigs. In Trial 1, eight growing pigs (Landrace × Yorkshire × Duroc; LYD) with an initial average weight of 51.3 ± 2.0 kg were used in a 4 × 4 Latin square design as the control group (without chromium supplements), the chromium picolinate group (CrPic), the nanoparticle chromium picolinate group (NanoCrPic) and the nanoparticle chromium picolinate mixed with γ-polyglutamic acid (NanoCrPic–PGA) group. Chromium was added at a level of 200 μg/kg to a basal diet containing 728 µg Cr/kg DM, using different forms of chromium, so as to evaluate the chromium bioavailability. The results of Trial 1 indicated that the bioavailability of the supplemented chromium was as follows: NanoCrPic–PGA > NanoCrPic > CrPic (P < 0.05). In Trial 2, 64 LYD growing pigs (average bodyweight 74.46 ± 3.9 kg) were randomly allotted to the same four dietary treatment groups as in Trial 1 and the same levels of chromium were added to the diet. Each group contained four pens and there were four pigs in each pen. The experimental results indicated that the gain:feed ratio in the NanoCrPic–PGA group was better than that in the NanoCrPic group (P < 0.001). The serum chromium concentrations in the NanoCrPic–PGA group were higher than in the control group (P < 0.05), the serum insulin concentration in the chromium supplementation groups was lower than that in the control group (P < 0.05), and blood glucose in the NanoCrPic group was lower than that in the control group (P < 0.05). The carcass traits were not affected by chromium supplementation. In conclusion, nanoparticle trivalent chromium, either alone or together with γ-PGA, improved chromium bioavailability and feeding effectiveness.
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Wang X, Sheng L, Ye P, Cao R, Yang X, Xiao W, Zhang Y, Bai Y, Wu H. The association between Hepcidin and arterial stiffness in a community-dwelling population. Lipids Health Dis 2018; 17:244. [PMID: 30373612 PMCID: PMC6206657 DOI: 10.1186/s12944-018-0866-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 09/11/2018] [Indexed: 11/10/2022] Open
Abstract
Background An association of hepcidin with cardiovascular (CV) disease and atherosclerosis has been reported in different patient groups. However, it has not been well described clinically the association between hepcidin and arterial stiffness. In this study,We analysed the possible mechanism of Hepcidin and arterial stiffness. Methods This article related measurements of plasma hepcidin and arterial stiffness (carotid–femoral pulse wave velocity [PWV]) in a community-based sample. Results After a median follow-up interval of 4.8 years, multiple linear regression analysis revealed that hepcidin was independently associated with carotid–femoral PWV (β = 1.498, P < 0.001). In a multivariable linear regression analysis, HDL3-C levels were negatively and independently associated with hepcidin at baseline (β = − 0.857, P = 0.024). HDL2-C was not associated with hepcidin at baseline (β = − 1.121, P = 0.133). Conclusions We found an association between baseline hepcidin and follow-up arterial stiffness that was independent of age, gender and other vascular risk factors. We also identified an association between hepcidin and HDL3-C at baseline, which indicates that the HDL3-C level may reflect the change in cholesterol efflux from peripheral arteries and partly explain the relationship between hepcidin and the change of arterial stiffness.
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Affiliation(s)
- Xiaona Wang
- Department of Geriatric Cardiology, Chinese PLA General Hospital, Fuxing Road #28, Beijing, 100853, China
| | - Li Sheng
- Department of Geriatric Cardiology, Chinese PLA General Hospital, Fuxing Road #28, Beijing, 100853, China
| | - Ping Ye
- Department of Geriatric Cardiology, Chinese PLA General Hospital, Fuxing Road #28, Beijing, 100853, China.
| | - Ruihua Cao
- Department of Geriatric Cardiology, Chinese PLA General Hospital, Fuxing Road #28, Beijing, 100853, China
| | - Xu Yang
- Department of Geriatric Cardiology, Chinese PLA General Hospital, Fuxing Road #28, Beijing, 100853, China
| | - Wenkai Xiao
- Department of Geriatric Cardiology, Chinese PLA General Hospital, Fuxing Road #28, Beijing, 100853, China
| | - Yun Zhang
- Department of Geriatric Cardiology, Chinese PLA General Hospital, Fuxing Road #28, Beijing, 100853, China
| | - Yongyi Bai
- Department of Geriatric Cardiology, Chinese PLA General Hospital, Fuxing Road #28, Beijing, 100853, China
| | - Hongmei Wu
- Department of Geriatric Cardiology, Chinese PLA General Hospital, Fuxing Road #28, Beijing, 100853, China
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Wang F, Wang X, Ye P, Cao R, Zhang Y, Qi Y, Zhao D. High-density lipoprotein 3 cholesterol is a predictive factor for arterial stiffness: a community-based 4.8-year prospective study. Lipids Health Dis 2018; 17:5. [PMID: 29304861 PMCID: PMC5756332 DOI: 10.1186/s12944-017-0650-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 12/22/2017] [Indexed: 11/10/2022] Open
Abstract
Background Although drug trials with niacin and cholesteryl ester transfer protein inhibitors that substantially increase high-density lipoprotein-cholesterol (HDL-C) failed to reduce the risk of coronary heart disease, HDL protection of the cardiovascular system cannot be easily denied. Hence, it may be HDL subfractions that are responsible for the long-held and consistent cardioprotective association of HDL. Arterial stiffness has been increasingly recognized as a strong predictor of subclinical vascular disease, atherosclerotic disease, and cardiovascular mortality. As the association of HDL subfractions and arterial stiffness is not well characterized, we aimed to determine the relations between these two entities in a community-based longitudinal Chinese population sample. Methods We evaluated the associations of plasma HDL2-C and HDL3-C subfractions with arterial stiffness measured using carotid-femoral pulse wave velocity (cf-PWV) and then multivariate logistic regression in 1447 subjects (mean age 61.3 years) from a community-based population in Beijing, China. Results After a median follow-up of 4.8 years, Pearson’s correlation analysis revealed that HDL3-C was negatively associated with follow-up cf-PWV (r = −0.114; P = 0.001), and there was no correlation between HDL2-C and follow-up cf-PWV (r = −0.045; P = 0.181). In the multivariate logistic regression analysis, each standard deviation (SD) increase in HDL3-C was associated with a 1.490-increased likelihood of the presence of follow-up cf-PWV [odds ratio (per SD increase in HDL3-C) 1.490; 95% confidence interval 1.021–1.470; P = 0.039), whereas there was no relation between HDL2-C and follow-up cf-PWV. Conclusions HDL3-C subfractions were significantly and inversely associated with arterial stiffness, suggesting that HDL subfractions are likely more important than HDL-C in preventing cardiovascular disease.
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Affiliation(s)
- Fan Wang
- Department of Geriatric Cardiology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Xiaona Wang
- Department of Geriatric Cardiology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Ping Ye
- Department of Geriatric Cardiology, Chinese PLA General Hospital, Beijing, 100853, China.
| | - Ruihua Cao
- Department of Geriatric Cardiology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Yun Zhang
- Department of Geriatric Cardiology, Chinese PLA General Hospital, Beijing, 100853, China
| | - Yue Qi
- Department of epidemiology, An zhen Hospital Affiliated of Capital University of Medical Sciences, Beijing, 100029, China
| | - Dong Zhao
- Department of epidemiology, An zhen Hospital Affiliated of Capital University of Medical Sciences, Beijing, 100029, China
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23
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Notsu Y, Yano S, Takeda M, Yamasaki M, Isomura M, Nabika T, Nagai A. Association of High-Density Lipoprotein Subclasses with Carotid Intima-Media Thickness: Shimane CoHRE Study. J Atheroscler Thromb 2017; 25:42-54. [PMID: 28450678 PMCID: PMC5770223 DOI: 10.5551/jat.38844] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
AIMS Recent studies suggested that subclasses of high-density lipoprotein (HDL) may be a better biomarker to predict the risk of atherosclerotic disorders. We aimed to examine the association of HDL2- and HDL3-cholesterol (HDL2-C and HDL3-C) with carotid intima-media thickness (IMT) using a new method to quantify the HDL-C subclasses. METHODS Participants were 657 Japanese subjects (434 women) who received a health examination (mean age: 73 years). Serum samples were analyzed by the homogenous assay for HDL-C and HDL3-C. HDL2-C was calculated indirectly by subtracting HDL3-C from HDL-C. HDL3-C measured by this assay was well correlated with that measured by ultracentrifugation (r=0.898, p<0.001). The maximum IMT (max-IMT) and plaque score (PS) were evaluated by ultrasonography following the standard protocol. RESULTS HDL3-C was associated with age both in men (r=-0.322, p<0.0001) and women (r=-0.315, p<0.0001). In a simple regression analysis, max-IMT showed an inverse association with HDL3-C, whereas no significant association was observed with HDL2-C. A multiple linear regression analysis indicated, however, that the association between HDL3-C and max-IMT was not significant in both aged and younger populations when age was included in the analysis. Further, not only HDL2-C but also HDL3-C was not a significant predictor of 'atherosclerotic arteries' defined as the max-IMT ≥1.5 mm. Similar results were observed in the analysis on PS. CONCLUSIONS Neither HDL3-C nor HDL2-C was significantly associated with carotid atherosclerosis in the Japanese population in this study.
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Affiliation(s)
| | - Shozo Yano
- Department of Laboratory Medicine, Shimane University.,The Center for Community-based Healthcare Research and Education (CoHRE), Shimane University
| | - Miwako Takeda
- The Center for Community-based Healthcare Research and Education (CoHRE), Shimane University
| | - Masayuki Yamasaki
- Department of Environmental and Preventive Medicine, Shimane University.,The Center for Community-based Healthcare Research and Education (CoHRE), Shimane University
| | - Minoru Isomura
- Department of Functional Pathology, Faculty of Medicine, Shimane University.,The Center for Community-based Healthcare Research and Education (CoHRE), Shimane University
| | - Toru Nabika
- Department of Functional Pathology, Faculty of Medicine, Shimane University.,The Center for Community-based Healthcare Research and Education (CoHRE), Shimane University
| | - Atsushi Nagai
- Department of Laboratory Medicine, Shimane University
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24
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Tiozzo E, Gardener H, Hudson BI, Dong C, Della-Morte D, Crisby M, Goldberg RB, Elkind MSV, Cheung YK, Wright CB, Sacco RL, Desvarieux M, Rundek T. Subfractions of High-Density Lipoprotein-Cholesterol and Carotid Intima-Media Thickness: The Northern Manhattan Study. Stroke 2016; 47:1508-13. [PMID: 27165951 DOI: 10.1161/strokeaha.115.012009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 04/12/2016] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE Recent drug trials have challenged the high-density lipoprotein-cholesterol (HDL-C) antiatherosclerotic hypothesis, suggesting that total level of HDL-C may not be the best target for intervention. HDL-C subfractions may be better markers of vascular risk than total levels of HDL-C. The objective of this cross-sectional study was to investigate the relationship between HDL2-C and HDL3-C fractions and carotid intima-media thickness (cIMT) in the population-based Northern Manhattan Study. METHODS We evaluated 988 stroke-free participants (mean age, 66±8 years; 60% women; 66% Hispanic, and 34% non-Hispanic) with available data on HDL-C subfractions using precipitation method and cIMT assessed by a high-resolution carotid ultrasound. The associations between HDL-C subfractions and cIMT were analyzed by multiple linear regression models. RESULTS The mean HDL2-C was 14±8 mg/dL, HDL3-C 32±8 mg/dL, and the mean total HDL-C was 46±14 mg/dL. The mean cIMT was 0.90±0.08 mm. After controlling for demographics and vascular risk factors, HDL2-C and total HDL-C were inversely associated with cIMT (per 2 SDs, β=-0.017, P=0.001 and β=-0.012, P=0.03, respectively). The same inverse association was more pronounced among those with diabetes mellitus (per 2SDs, HDL2-C: β=-0.043, P=0.003 and HDL-C: β=-0.029, P=0.02). HDL3-C was not associated with cIMT. CONCLUSIONS HDL2-C had greater effect on cIMT than HDL3-C in this large urban population. The effect of HDL2-C was especially pronounced among individuals with diabetes mellitus. More research is needed to determine antiatherosclerotic effects of HDL-C subfractions and their clinical relevance.
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Affiliation(s)
- Eduard Tiozzo
- From the Department of Psychiatry and Behavioral Sciences, Miller School of Medicine (E.T.), Department of Neurology, Miller School of Medicine (E.T., H.G., C.D., D.D.-M., C.B.W., R.L.S., T.R.), Division of Endocrinology, Diabetes and Metabolism (B.I.H.), Diabetes Research Institute and Lipid Disorder Clinic (R.B.G.), and Department of Public Health Sciences (R.L.S.), University of Miami, FL; Department of System Medicine, University of Rome Tor Vergata, Rome, Italy (D.D.-M.); Biomarker Discovery and Advanced Technologies (BioDAT), IRCCS San Raffaele Pisana, Rome, Italy (D.D.-M.); Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Stockholm, Sweden (M.C.); Department of Neurology, Columbia University College of Physicians and Surgeons, New York, NY (M.S.V.E.); Department of Biostatistics (Y.K.C.) and Department of Epidemiology (M.D.), Mailman School of Public Health, Columbia University, New York, NY; and Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS-UMR1153), Paris, France (M.D.).
| | - Hannah Gardener
- From the Department of Psychiatry and Behavioral Sciences, Miller School of Medicine (E.T.), Department of Neurology, Miller School of Medicine (E.T., H.G., C.D., D.D.-M., C.B.W., R.L.S., T.R.), Division of Endocrinology, Diabetes and Metabolism (B.I.H.), Diabetes Research Institute and Lipid Disorder Clinic (R.B.G.), and Department of Public Health Sciences (R.L.S.), University of Miami, FL; Department of System Medicine, University of Rome Tor Vergata, Rome, Italy (D.D.-M.); Biomarker Discovery and Advanced Technologies (BioDAT), IRCCS San Raffaele Pisana, Rome, Italy (D.D.-M.); Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Stockholm, Sweden (M.C.); Department of Neurology, Columbia University College of Physicians and Surgeons, New York, NY (M.S.V.E.); Department of Biostatistics (Y.K.C.) and Department of Epidemiology (M.D.), Mailman School of Public Health, Columbia University, New York, NY; and Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS-UMR1153), Paris, France (M.D.)
| | - Barry I Hudson
- From the Department of Psychiatry and Behavioral Sciences, Miller School of Medicine (E.T.), Department of Neurology, Miller School of Medicine (E.T., H.G., C.D., D.D.-M., C.B.W., R.L.S., T.R.), Division of Endocrinology, Diabetes and Metabolism (B.I.H.), Diabetes Research Institute and Lipid Disorder Clinic (R.B.G.), and Department of Public Health Sciences (R.L.S.), University of Miami, FL; Department of System Medicine, University of Rome Tor Vergata, Rome, Italy (D.D.-M.); Biomarker Discovery and Advanced Technologies (BioDAT), IRCCS San Raffaele Pisana, Rome, Italy (D.D.-M.); Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Stockholm, Sweden (M.C.); Department of Neurology, Columbia University College of Physicians and Surgeons, New York, NY (M.S.V.E.); Department of Biostatistics (Y.K.C.) and Department of Epidemiology (M.D.), Mailman School of Public Health, Columbia University, New York, NY; and Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS-UMR1153), Paris, France (M.D.)
| | - Chuanhui Dong
- From the Department of Psychiatry and Behavioral Sciences, Miller School of Medicine (E.T.), Department of Neurology, Miller School of Medicine (E.T., H.G., C.D., D.D.-M., C.B.W., R.L.S., T.R.), Division of Endocrinology, Diabetes and Metabolism (B.I.H.), Diabetes Research Institute and Lipid Disorder Clinic (R.B.G.), and Department of Public Health Sciences (R.L.S.), University of Miami, FL; Department of System Medicine, University of Rome Tor Vergata, Rome, Italy (D.D.-M.); Biomarker Discovery and Advanced Technologies (BioDAT), IRCCS San Raffaele Pisana, Rome, Italy (D.D.-M.); Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Stockholm, Sweden (M.C.); Department of Neurology, Columbia University College of Physicians and Surgeons, New York, NY (M.S.V.E.); Department of Biostatistics (Y.K.C.) and Department of Epidemiology (M.D.), Mailman School of Public Health, Columbia University, New York, NY; and Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS-UMR1153), Paris, France (M.D.)
| | - David Della-Morte
- From the Department of Psychiatry and Behavioral Sciences, Miller School of Medicine (E.T.), Department of Neurology, Miller School of Medicine (E.T., H.G., C.D., D.D.-M., C.B.W., R.L.S., T.R.), Division of Endocrinology, Diabetes and Metabolism (B.I.H.), Diabetes Research Institute and Lipid Disorder Clinic (R.B.G.), and Department of Public Health Sciences (R.L.S.), University of Miami, FL; Department of System Medicine, University of Rome Tor Vergata, Rome, Italy (D.D.-M.); Biomarker Discovery and Advanced Technologies (BioDAT), IRCCS San Raffaele Pisana, Rome, Italy (D.D.-M.); Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Stockholm, Sweden (M.C.); Department of Neurology, Columbia University College of Physicians and Surgeons, New York, NY (M.S.V.E.); Department of Biostatistics (Y.K.C.) and Department of Epidemiology (M.D.), Mailman School of Public Health, Columbia University, New York, NY; and Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS-UMR1153), Paris, France (M.D.)
| | - Milita Crisby
- From the Department of Psychiatry and Behavioral Sciences, Miller School of Medicine (E.T.), Department of Neurology, Miller School of Medicine (E.T., H.G., C.D., D.D.-M., C.B.W., R.L.S., T.R.), Division of Endocrinology, Diabetes and Metabolism (B.I.H.), Diabetes Research Institute and Lipid Disorder Clinic (R.B.G.), and Department of Public Health Sciences (R.L.S.), University of Miami, FL; Department of System Medicine, University of Rome Tor Vergata, Rome, Italy (D.D.-M.); Biomarker Discovery and Advanced Technologies (BioDAT), IRCCS San Raffaele Pisana, Rome, Italy (D.D.-M.); Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Stockholm, Sweden (M.C.); Department of Neurology, Columbia University College of Physicians and Surgeons, New York, NY (M.S.V.E.); Department of Biostatistics (Y.K.C.) and Department of Epidemiology (M.D.), Mailman School of Public Health, Columbia University, New York, NY; and Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS-UMR1153), Paris, France (M.D.)
| | - Ronald B Goldberg
- From the Department of Psychiatry and Behavioral Sciences, Miller School of Medicine (E.T.), Department of Neurology, Miller School of Medicine (E.T., H.G., C.D., D.D.-M., C.B.W., R.L.S., T.R.), Division of Endocrinology, Diabetes and Metabolism (B.I.H.), Diabetes Research Institute and Lipid Disorder Clinic (R.B.G.), and Department of Public Health Sciences (R.L.S.), University of Miami, FL; Department of System Medicine, University of Rome Tor Vergata, Rome, Italy (D.D.-M.); Biomarker Discovery and Advanced Technologies (BioDAT), IRCCS San Raffaele Pisana, Rome, Italy (D.D.-M.); Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Stockholm, Sweden (M.C.); Department of Neurology, Columbia University College of Physicians and Surgeons, New York, NY (M.S.V.E.); Department of Biostatistics (Y.K.C.) and Department of Epidemiology (M.D.), Mailman School of Public Health, Columbia University, New York, NY; and Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS-UMR1153), Paris, France (M.D.)
| | - Mitchell S V Elkind
- From the Department of Psychiatry and Behavioral Sciences, Miller School of Medicine (E.T.), Department of Neurology, Miller School of Medicine (E.T., H.G., C.D., D.D.-M., C.B.W., R.L.S., T.R.), Division of Endocrinology, Diabetes and Metabolism (B.I.H.), Diabetes Research Institute and Lipid Disorder Clinic (R.B.G.), and Department of Public Health Sciences (R.L.S.), University of Miami, FL; Department of System Medicine, University of Rome Tor Vergata, Rome, Italy (D.D.-M.); Biomarker Discovery and Advanced Technologies (BioDAT), IRCCS San Raffaele Pisana, Rome, Italy (D.D.-M.); Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Stockholm, Sweden (M.C.); Department of Neurology, Columbia University College of Physicians and Surgeons, New York, NY (M.S.V.E.); Department of Biostatistics (Y.K.C.) and Department of Epidemiology (M.D.), Mailman School of Public Health, Columbia University, New York, NY; and Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS-UMR1153), Paris, France (M.D.)
| | - Ying Kuen Cheung
- From the Department of Psychiatry and Behavioral Sciences, Miller School of Medicine (E.T.), Department of Neurology, Miller School of Medicine (E.T., H.G., C.D., D.D.-M., C.B.W., R.L.S., T.R.), Division of Endocrinology, Diabetes and Metabolism (B.I.H.), Diabetes Research Institute and Lipid Disorder Clinic (R.B.G.), and Department of Public Health Sciences (R.L.S.), University of Miami, FL; Department of System Medicine, University of Rome Tor Vergata, Rome, Italy (D.D.-M.); Biomarker Discovery and Advanced Technologies (BioDAT), IRCCS San Raffaele Pisana, Rome, Italy (D.D.-M.); Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Stockholm, Sweden (M.C.); Department of Neurology, Columbia University College of Physicians and Surgeons, New York, NY (M.S.V.E.); Department of Biostatistics (Y.K.C.) and Department of Epidemiology (M.D.), Mailman School of Public Health, Columbia University, New York, NY; and Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS-UMR1153), Paris, France (M.D.)
| | - Clinton B Wright
- From the Department of Psychiatry and Behavioral Sciences, Miller School of Medicine (E.T.), Department of Neurology, Miller School of Medicine (E.T., H.G., C.D., D.D.-M., C.B.W., R.L.S., T.R.), Division of Endocrinology, Diabetes and Metabolism (B.I.H.), Diabetes Research Institute and Lipid Disorder Clinic (R.B.G.), and Department of Public Health Sciences (R.L.S.), University of Miami, FL; Department of System Medicine, University of Rome Tor Vergata, Rome, Italy (D.D.-M.); Biomarker Discovery and Advanced Technologies (BioDAT), IRCCS San Raffaele Pisana, Rome, Italy (D.D.-M.); Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Stockholm, Sweden (M.C.); Department of Neurology, Columbia University College of Physicians and Surgeons, New York, NY (M.S.V.E.); Department of Biostatistics (Y.K.C.) and Department of Epidemiology (M.D.), Mailman School of Public Health, Columbia University, New York, NY; and Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS-UMR1153), Paris, France (M.D.)
| | - Ralph L Sacco
- From the Department of Psychiatry and Behavioral Sciences, Miller School of Medicine (E.T.), Department of Neurology, Miller School of Medicine (E.T., H.G., C.D., D.D.-M., C.B.W., R.L.S., T.R.), Division of Endocrinology, Diabetes and Metabolism (B.I.H.), Diabetes Research Institute and Lipid Disorder Clinic (R.B.G.), and Department of Public Health Sciences (R.L.S.), University of Miami, FL; Department of System Medicine, University of Rome Tor Vergata, Rome, Italy (D.D.-M.); Biomarker Discovery and Advanced Technologies (BioDAT), IRCCS San Raffaele Pisana, Rome, Italy (D.D.-M.); Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Stockholm, Sweden (M.C.); Department of Neurology, Columbia University College of Physicians and Surgeons, New York, NY (M.S.V.E.); Department of Biostatistics (Y.K.C.) and Department of Epidemiology (M.D.), Mailman School of Public Health, Columbia University, New York, NY; and Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS-UMR1153), Paris, France (M.D.)
| | - Moise Desvarieux
- From the Department of Psychiatry and Behavioral Sciences, Miller School of Medicine (E.T.), Department of Neurology, Miller School of Medicine (E.T., H.G., C.D., D.D.-M., C.B.W., R.L.S., T.R.), Division of Endocrinology, Diabetes and Metabolism (B.I.H.), Diabetes Research Institute and Lipid Disorder Clinic (R.B.G.), and Department of Public Health Sciences (R.L.S.), University of Miami, FL; Department of System Medicine, University of Rome Tor Vergata, Rome, Italy (D.D.-M.); Biomarker Discovery and Advanced Technologies (BioDAT), IRCCS San Raffaele Pisana, Rome, Italy (D.D.-M.); Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Stockholm, Sweden (M.C.); Department of Neurology, Columbia University College of Physicians and Surgeons, New York, NY (M.S.V.E.); Department of Biostatistics (Y.K.C.) and Department of Epidemiology (M.D.), Mailman School of Public Health, Columbia University, New York, NY; and Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS-UMR1153), Paris, France (M.D.)
| | - Tatjana Rundek
- From the Department of Psychiatry and Behavioral Sciences, Miller School of Medicine (E.T.), Department of Neurology, Miller School of Medicine (E.T., H.G., C.D., D.D.-M., C.B.W., R.L.S., T.R.), Division of Endocrinology, Diabetes and Metabolism (B.I.H.), Diabetes Research Institute and Lipid Disorder Clinic (R.B.G.), and Department of Public Health Sciences (R.L.S.), University of Miami, FL; Department of System Medicine, University of Rome Tor Vergata, Rome, Italy (D.D.-M.); Biomarker Discovery and Advanced Technologies (BioDAT), IRCCS San Raffaele Pisana, Rome, Italy (D.D.-M.); Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Stockholm, Sweden (M.C.); Department of Neurology, Columbia University College of Physicians and Surgeons, New York, NY (M.S.V.E.); Department of Biostatistics (Y.K.C.) and Department of Epidemiology (M.D.), Mailman School of Public Health, Columbia University, New York, NY; and Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS-UMR1153), Paris, France (M.D.)
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Samouilidou E, Kostopoulos V, Liaouri A, Kioussi E, Vassiliou K, Bountou E, Grapsa E. Association of lipid profile with serum PON1 concentration in patients with chronic kidney disease. Ren Fail 2016; 38:1601-1606. [DOI: 10.3109/0886022x.2016.1144031] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
| | | | | | - Eva Kioussi
- Nephrology Department, “Aretaeio” University Hospital, Athens, Greece
| | | | - Eirini Bountou
- Nephrology Department, “Aretaeio” University Hospital, Athens, Greece
| | - Eirini Grapsa
- Nephrology Department, “Aretaeio” University Hospital, Athens, Greece
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Honda H, Hirano T, Ueda M, Kojima S, Mashiba S, Hayase Y, Michihata T, Shibata T. High-Density Lipoprotein Subfractions and Their Oxidized Subfraction Particles in Patients with Chronic Kidney Disease. J Atheroscler Thromb 2015; 23:81-94. [PMID: 26289085 DOI: 10.5551/jat.30015] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
AIM Chronic kidney disease (CKD) may lead to reduced concentrations of high-density lipoprotein (HDL) and its subfractions (HDL2 and HDL3), and damage them via inflammation and oxidative stress. The present study aimed to determine the contribution of such changes to cardiovascular disease (CVD) in patients with CKD. METHODS The levels of total cholesterol, low-density lipoprotein cholesterol, HDL-C, HDL2, HDL3, apolipoproteins, malondialdehyde-modified LDL (MDA-LDL), oxidized (ox) HDL, oxHDL2, and oxHDL3 were measured in blood samples from patients with CKD (stages 2-5, n=86) who were not on dialysis and from patients undergoing hemodialysis (CKD stage 5D, n=25). The patients were followed up for 28±9 months after baseline examinations and CVD events were recorded. RESULT The levels of HDL3 and ApoA1 in HDL3 fraction decreased according to CKD severity, whereas those of HDL2 and ApoA1 in HDL2 fraction did not differ. The levels of oxHDL were similar across CKD stages. The levels of oxHDL3 and MDA-LDL were decreased, whereas those of oxHDL2 increased according to CKD severity. Multivariate analyses using the Cox proportional hazards model selected high levels of oxHDL and its subfractions, and those adjusted with HDL-C and HDL subfractions or ApoA1 in HDL fractions respectively, compared with HDL-C and HDL subfractions or ApoA1 in HDL fractions alone as independent risk factors for CVD events. CONCLUSION The levels of HDL subfractions and their oxidized subfraction particles differed among patients with CKD. The increasing levels of oxHDL subfractions might cause a high frequency of CVD events in such patients.
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Affiliation(s)
- Hirokazu Honda
- Division of Nephrology, Department of Medicine, Showa University Koto Toyosu Hospital
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Koumaré ATCRK, Sakandé LPL, Kabré E, Sondé I, Simporé J, Sakandé J. Reference ranges of cholesterol sub-fractions in random healthy adults in Ouagadougou, Burkina Faso. PLoS One 2015; 10:e0116420. [PMID: 25611320 PMCID: PMC4303323 DOI: 10.1371/journal.pone.0116420] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 12/09/2014] [Indexed: 11/30/2022] Open
Abstract
In Burkina Faso, the values that serve as clinical chemistry reference ranges are those provided by European manufacturers' insert sheets based on reference of the Western population. However, studies conducted so far in some African countries reported significant differences in normal laboratory ranges compared with those of the industrialized world. The aim of this study was to determine reference values of cholesterol fractions in apparently normal adults in Burkina Faso that could be used to better assess the risks related to cardiovascular diseases. Study population was 279 healthy subjects aged from 15 to 50 years including 139 men and 140 women recruited at the Regional Center of Blood Transfusion of Ouagadougou, capital city of Burkina Faso (West Africa). Exclusion criteria based on history and clinical examination were used for defining reference individuals. The dual-step precipitation of HDL cholesterol sub-fractions using dextran sulfate was performed according to the procedure described by Hirano. The medians were calculated and reference values were determined at 2.5th and 97.5th percentiles. The median and upper ranges for total cholesterol, LDL cholesterol, total HDL cholesterol and HDL2 cholesterol were observed to be higher in women in comparison to men (p <0.05). These reference ranges were similar to those derived from other African countries but lower than those recorded in France and in USA. This underscores the need for such comprehensible establishment of reference values for limited resources countries. Our study provides the first cholesterol sub-fractions (HDL2 and HDL3) reference ranges for interpretation of laboratory results for cardiovascular risk management in Burkina Faso.
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Affiliation(s)
- Alice T. C. R. Kiba Koumaré
- Health Department, Laboratory of Biochemistry, University of Ouagadougou, Ouagadougou, Burkina Faso
- Regional Blood Transfusion Center of Ouagadougou, Ouagadougou, Burkina Faso
| | - Linda P. L. Sakandé
- Clinic Philadelphie of Ouagadougou, Clinical Laboratory, Ouagadougou, Burkina Faso
| | - Elie Kabré
- Health Department, Laboratory of Biochemistry, University of Ouagadougou, Ouagadougou, Burkina Faso
| | - Issaka Sondé
- Health Department, Laboratory of Biochemistry, University of Ouagadougou, Ouagadougou, Burkina Faso
| | - Jacques Simporé
- Centre de Recherche Biomoléculaire Pietro Annigoni (CERBA), Laboratoire de Biologie et Génétique (LABIOGENE), Centre Médical Saint Camille, Ouagadougou, Université de Ouagadougou, Ouagadougou, Burkina Faso
| | - Jean Sakandé
- Health Department, Laboratory of Biochemistry, University of Ouagadougou, Ouagadougou, Burkina Faso
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Tiozzo E, Gardener H, Hudson BI, Dong C, Della-Morte D, Crisby M, Goldberg RB, Elkind MSV, Cheung YK, Wright CB, Sacco RL, Rundek T. High-density lipoprotein subfractions and carotid plaque: the Northern Manhattan Study. Atherosclerosis 2014; 237:163-8. [PMID: 25240111 DOI: 10.1016/j.atherosclerosis.2014.09.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 08/29/2014] [Accepted: 09/01/2014] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The objective of this cross-sectional analysis was to investigate the relation between two major high-density lipoprotein cholesterol (HDL-C) subfractions (HDL2-C and HDL3-C) and carotid plaque in a population based cohort. METHODS We evaluated 988 stroke-free participants (mean age 66 ± 8 years; 40% men; 66% Hispanic and 34% Non-Hispanic) with available data on HDL subfractions using precipitation method and carotid plaque area and thickness assessed by a high-resolution 2D ultrasound. The associations between HDL-C subfractions and plaque measurements were analyzed by quantile regression. RESULTS Plaque was present in 56% of the study population. Among those with plaque, the mean ± SD plaque area was 19.40 ± 20.46 mm² and thickness 2.30 ± 4.45 mm. The mean ± SD total HDL-C was 46 ± 14 mg/dl, HDL2-C 14 ± 8 mg/dl, and HDL3-C 32 ± 8 mg/dl. After adjusting for demographics and vascular risk factors, there was an inverse association between HDL3-C and plaque area (per mg/dl: beta = -0.26 at the 75th percentile, p = 0.001 and beta = -0.32 at the 90th percentile, p = 0.02). A positive association was observed between HDL2-C and plaque thickness (per mg/dl; beta = 0.02 at the 90% percentile, p = 0.003). HDL-C was associated with plaque area (per mg/dl: beta = -0.18 at the 90th percentile, p = 0.01), but only among Hispanics. CONCLUSION In our cohort we observed an inverse association between HDL3-C and plaque area and a positive association between HDL2-C and plaque thickness. HDL-C subfractions may have different contributions to the risk of vascular disease. More studies are needed to fully elucidate HDL-C anti-atherosclerotic functions in order to improve HDL-based treatments in prevention of vascular disease and stroke.
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Affiliation(s)
- Eduard Tiozzo
- Department of Psychiatry and Behavioral Sciences, Miller School of Medicine, University of Miami, Miami, FL, USA.
| | - Hannah Gardener
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, FL, USA.
| | - Barry I Hudson
- Division of Endocrinology, Diabetes and Metabolism, University of Miami, Miami, FL, USA.
| | - Chuanhui Dong
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, FL, USA.
| | - David Della-Morte
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, FL, USA; Department of System Medicine, University of Rome Tor Vergata, Rome, Italy; IRCCS San Raffaele Pisana, Rome, Italy.
| | - Milita Crisby
- Karolinska Institute, Department of Neurobiology, Care Sciences and Society, Stockholm, Sweden.
| | - Ronald B Goldberg
- Diabetes Research Institute and Lipid Disorder Clinic, University of Miami, Miami, FL, USA
| | - Mitchell S V Elkind
- Department of Neurology, Columbia University College of Physicians and Surgeons, New York, NY, USA.
| | - Ying Kuen Cheung
- Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, NY, USA.
| | - Clinton B Wright
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, FL, USA.
| | - Ralph L Sacco
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, FL, USA.
| | - Tatjana Rundek
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, FL, USA.
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Lin YC, Huang JT, Li MZ, Cheng CY, Lien TF. Effects of supplemental nanoparticle trivalent chromium on the nutrient utilization, growth performance and serum traits of broilers. J Anim Physiol Anim Nutr (Berl) 2014; 99:59-65. [DOI: 10.1111/jpn.12215] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 05/13/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Y. C. Lin
- Department of Animal Science; National Chiayi University; Chiayi Taiwan
| | - J. T. Huang
- Department of Animal Science; National Chiayi University; Chiayi Taiwan
| | - M. Z. Li
- Department of Animal Science; National Chiayi University; Chiayi Taiwan
| | - C. Y. Cheng
- Department of Animal Science; National Chiayi University; Chiayi Taiwan
| | - T. F. Lien
- Department of Animal Science; National Chiayi University; Chiayi Taiwan
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Kilic H, Atalar E, Lay I, Yazihan N, Buyukcam F, Saygisunar U, Aksoy M, Gunduz H, Akdemir R. High-density lipoprotein subfractions and influence of endothelial lipase in a healthy Turkish population: a study in a land of low high-density lipoprotein cholesterol. Scand J Clin Lab Invest 2014; 74:278-84. [PMID: 24479875 DOI: 10.3109/00365513.2013.879992] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE Low concentration of high-density lipoprotein (HDL) is prevalent in Turkey. Endothelial lipase (EL) regulates lipoprotein metabolism. Small, lipid-poor HDL particles represent more-efficient cholesterol acceptors than their large, lipid-rich counterparts. The aim of this study was to investigate HDL subfractions and the effect of EL on HDL concentrations in healthy Turkish population. METHODS 102 healthy subjects were included in the study (mean age 33.6 ± 10.3 years, 42 female). HDL subfractions were assayed by single precipitation method and EL concentrations were measured by competitive enzyme immunoassay. RESULTS Mean HDL concentrations were 1.45 ± 0.37 mmol/L in women, 1.10 ± 0.30 mmol/L in men. Small HDL subfraction levels did not differ statistically between < 1 mmol/L and ≥ 1.6 mmol/L total HDL groups. Small HDL was not correlated with EL, low density lipoprotein cholesterol (LDL), triglyceride (TG) and age but positively correlated with total cholesterol and HDL (r = 0.2, p = 0.017; r = 0.2, p = 0.028, respectively). Large HDL was not correlated with age, EL and total cholesterol, and negatively correlated with HDL, LDL, TG (r = - 0.7, p < 0.001; r = - 0.2, p = 0.045; r = - 0.3, p < 0.001, respectively). If subjects were divided into two groups as HDL< 1 mmol/L and HDL > 1.6 mmol/L, mean EL concentrations were 475.83 ± 521.77 nmol/L and 529.71 ± 276.92 nmol/L, respectively (p = 0.086). CONCLUSION There were no differences between small HDL concentrations in the HDL low and high groups. Our data did not support EL to be the reason for low HDL in a healthy Turkish population. Our results in a healthy population may serve as a reference for clinical studies on HDL subfractions.
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Affiliation(s)
- Harun Kilic
- Department of Cardiology, Faculty of Medicine, Sakarya University , Sakarya
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31
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Ito Y, Satoh N, Ishii T, Kumakura J, Hirano T. Development of a homogeneous assay for measurement of high-density lipoprotein-subclass cholesterol. Clin Chim Acta 2014; 427:86-93. [DOI: 10.1016/j.cca.2013.09.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 09/11/2013] [Accepted: 09/11/2013] [Indexed: 10/26/2022]
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Bin Aleem S, Hussain MM, Farooq Y. Levo-carnitine reduces oxidative stress and improves contractile functions of fast muscles in type 2 diabetic rats. IRANIAN BIOMEDICAL JOURNAL 2013; 17:29-35. [PMID: 23279832 DOI: 10.6091/ibj.1086.2012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Metabolic derangements in type 2 diabetes mellitus (T2DM) are likely to affect skeletal muscle contractile functions adversely. Levo-carnitine improves muscle contractile functions in healthy humans and rats and corrects metabolic derangements in T2DM. Therefore, it is likely to improve muscle contractile functions in T2DM as well. This study was designed to determine the effect of levo-carnitine on serum levo-carnitine levels, oxidative stress and contractile parameters of fast muscle in T2DM. METHODS Ninety Sprague-Dawley rats were randomly divided into three equal groups. Healthy rats served as the controls, while T2DM was induced in diabetic and carnitine groups. The carnitine group was administered levo-carnitine 200 mg/kg/day intraperitoneally for 6 days. At 28th day, extensor digitorum longus muscles were removed and their functions were assessed using iWorx data acquisition unit (AHK/214). Blood obtained by intra-cardiac sampling at 28th day was used for estimation of serum malondialdehyde (MDA) and levo-carnitine levels. RESULTS Maximum isometric twitch tension, time-to-peak twitch tension and time-to-relax to 50% of the peak twitch tension were not significantly different amongst the groups. Carnitine group showed significant improvement in maximum fused tetanic tension, maximum fused tetanic tension after fatigue protocol and recovery from fatigue after 5 minutes of rest period compared to the diabetic group. Serum MDA levels were reduced, while serum levo-carnitine levels were elevated significantly in carnitine group as compared to the diabetic group. CONCLUSION Levo-carnitine supplementation increases serum levo-carnitine levels which decreases oxidative stress. This action improves contractile force but delays fatigue in fast muscles of diabetic rats.
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Affiliation(s)
- Shoaib Bin Aleem
- Dept. of Physiology, Army Medical College, Rawalpindi, Pakistan.
| | | | - Yasir Farooq
- Dept. of Physiology, Army Medical College, Rawalpindi, Pakistan.
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Dong J, Guo H, Yang R, Li H, Wang S, Zhang J, Zhou W, Chen W. A novel and precise method for simultaneous measurement of serum HDL and LDL subfractions and lipoprotein (a) cholesterol by ultracentrifugation and high-performance liquid chromatography. Clin Chim Acta 2012; 413:1071-6. [PMID: 22406178 DOI: 10.1016/j.cca.2012.02.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2011] [Revised: 02/21/2012] [Accepted: 02/21/2012] [Indexed: 11/24/2022]
Abstract
BACKGROUND We developed an ultracentrifugation and high-performance liquid chromatography (HPLC) method for simultaneous measurement of cholesterol in serum high density lipoprotein (HDL) and low density lipoprotein (LDL) subfractions and lipoprotein (a) [Lp(a)]. METHODS Serum aliquots of 0.05 ml were centrifuged at background densities of 1.006, 1.044 kg/l, and in the presence of β-mercaptoethanol (ME) at background densities of 1.044, 1.063 and 1.125 kg/l for the separation of lipoprotein subfractions and Lp(a). Cholesterol levels in the ultracentrifugal bottom fractions were analyzed by HPLC. RESULTS ME effectively dissociated Lp(a) into apolipoprotein (a) and Lp(a) remnant [Lp(a-)]. Lp(a-) showed a distinctive density distribution from that of the native Lp(a). Based on these data, a method was developed to separate lipoprotein into subfractions and Lp(a) by ultracentrifugation. The separated HDL and LDL subfractions were not contaminated with Lp(a). This method is highly precise with the total CVs for the measurement of HDL2-C, HDL3-C, LDLa-C, LDLb-C and Lp(a)-C 0.85%-2.66%, 0.87%-3.21%, 0.86%-1.11%, 2.59%-6.35% and 4.42%-12.29%, respectively. CONCLUSION A new method for the separation of HDL and LDL subfractions and Lp(a) and simultaneous measurement of cholesterol by ultracentrifugation and HPLC have been established. It is precise and sensitive and can be used in research or clinical laboratories for lipoprotein profiling.
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Affiliation(s)
- Jun Dong
- The Key Laboratory of Geriatrics, Beijing Hospital & Beijing Institute of Geriatrics, Ministry of Health, Beijing, China
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Fukui T, Hirano T. High-density lipoprotein subspecies between patients with type 1 diabetes and type 2 diabetes without / with intensive insulin therapy. Endocr J 2012; 59:561-9. [PMID: 22504174 DOI: 10.1507/endocrj.ej11-0329] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The reduced levels of high-density lipoprotein (HDL) 2-cholesterol (C) in diabetes and other metabolic disorders associated with a high risk of cardiovascular disease are well established. Few studies, however, have compared the HDL subspecies in type 1 diabetes (T1D) with those in type 2 diabetes (T2D) with or without insulin. We examined HDL subspecies in 27 T1D with insulin, 33 T2D with insulin or insulin plus oral-anti-diabetic drugs (OADs), 36 T2D with OADs or diet/exercise, and 25 non-diabetic controls. Insulin was injected four times daily in a basal-bolus manner for both T1D and T2D. Plasma levels of C, apolipoprotein (apo) AI, and AII were determined in HDL2 and HDL3 by the single precipitation method. HDL-C levels were significantly higher in T1D and lower in T2D, compared with the controls. Insulin-treated T2D had higher HDL-C than non-insulin-treated T2D. T1D had higher HDL2-C and HDL2-apo AI levels than T2D. Insulin-treated T2D had higher HDL2-C and HDL2-apo AI levels than non-insulin-treated T2D. All of these differences were more pronounced for men than for women. HDL3 levels were comparable among controls,T1D and T2D. HDL2-C levels were inversely associated with BMI, HbA1c, triglyceride, small dense LDL-C, and LDL-C. Multiple regression analysis revealed that HDL2-C was independently associated with triglyceride, LDL-C, and intensive insulin therapy but not with HbA1c. In conclusion, these results suggest that intensive insulin therapy is associated with alterations of HDL subspecies, irrespective of the type of diabetes.
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MESH Headings
- Administration, Oral
- Adult
- Aged
- Case-Control Studies
- Combined Modality Therapy
- Diabetes Mellitus, Type 1/blood
- Diabetes Mellitus, Type 1/drug therapy
- Diabetes Mellitus, Type 1/therapy
- Diabetes Mellitus, Type 2/blood
- Diabetes Mellitus, Type 2/drug therapy
- Diabetes Mellitus, Type 2/therapy
- Diet Therapy
- Dose-Response Relationship, Drug
- Drug Therapy, Combination
- Exercise Therapy
- Female
- Humans
- Hypoglycemic Agents/administration & dosage
- Hypoglycemic Agents/therapeutic use
- Insulin/administration & dosage
- Insulin/therapeutic use
- Lipoproteins, HDL/analysis
- Lipoproteins, HDL/blood
- Lipoproteins, HDL/classification
- Male
- Middle Aged
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Affiliation(s)
- Tomoyasu Fukui
- Department of Medicine, Division of Diabetes, Metabolism, and Endocrinology, Showa University School of Medicine. Tokyo 142-8666, Japan
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Maeda S, Nakanishi S, Yoneda M, Awaya T, Yamane K, Hirano T, Kohno N. Associations between small dense LDL, HDL subfractions (HDL2, HDL3) and risk of atherosclerosis in Japanese-Americans. J Atheroscler Thromb 2011; 19:444-52. [PMID: 22659528 DOI: 10.5551/jat.11445] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
AIM Small dense low-density lipoprotein (sdLDL) has been suggested to be more atherogenic than large buoyant LDL. High-density lipoprotein (HDL) consists of two major subfractions (HDL2, HDL3), and just as controversy remains regarding which of the two is the more powerful negative risk factor for atherosclerosis, associations between sdLDL and these HDL subfractions are unclear. METHODS We measured sdLDL cholesterol (sdLDL-C), HDL2 cholesterol (HDL2-C) and HDL3 cholesterol (HDL3-C) by a newly developed method in 481 Japanese-Americans who were not using lipid-lowering medication, and examined the associations of these cholesterol concentrations with variables related to atherosclerosis. RESULTS In multivariate analysis, sdLDL-C was positively correlated with the body mass index (BMI), fasting glucose and insulin, 2-h glucose, HOMA-IR, high sensitivity C-reactive protein (hsCRP), and carotid artery intima-media thickness (IMT) after adjustment for age and sex. In particular, sdLDL-C was positively correlated with IMT, even after adjustment for sex, age, smoking status, hypertension, diabetes mellitus and hsCRP. HDL2-C was more closely inversely correlated than total HDL-C with BMI, fasting glucose and insulin, 2-h glucose, HOMA-IR, and hsCRP, whereas HDL3-C was not correlated with these factors. Additionally, HDL2-C was more closely correlated than total HDL-C or HDL3-C with sdLDL-C, LDL-C, triglycerides (TG), and apolipoprotein B (apoB). CONCLUSIONS SdLDL-C was closely associated with insulin resistance and glucose tolerance, lending credence to its potential as a useful risk marker in assessing carotid artery IMT and the present degree of atherosclerosis in Japanese-Americans. The findings also suggest that subjects with higher HDL2-C levels were better protected from atherosclerosis.
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Affiliation(s)
- Shusaku Maeda
- Department of Molecular and Internal Medicine, Graduate School of Biomedical Sciences, Hiroshima University, Japan
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Samouilidou EC, Karpouza AP, Kostopoulos V, Bakirtzi T, Pantelias K, Petras D, Tzanatou-Exarchou H, J Grapsa E. Lipid abnormalities and oxidized LDL in chronic kidney disease patients on hemodialysis and peritoneal dialysis. Ren Fail 2011; 34:160-4. [PMID: 22172020 DOI: 10.3109/0886022x.2011.641515] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Dyslipoproteinemia and oxidative modification of low-density lipoprotein (oxLDL) contribute to the development of oxidative stress and atherosclerosis in chronic kidney disease (CKD). On the contrary, high-density lipoprotein cholesterol (HDL-C), especially HDL3-C subtype, has protective effect against oxidative damage. There is limited evidence referring HDL-C subclass levels in patients on dialysis. This study was designed to compare lipid abnormalities and oxLDL levels in hemodialysis (HD) and peritoneal dialysis (PD) patients. Serum lipids, HDL subclasses, and oxLDL were measured in 55 patients with CKD-stage 5 (31 patients on HD and 24 patients on PD) and in 21 normal controls (NC). The results showed that in dialysis patients, triglycerides were higher than in controls (p < 0.0001) and HDL-C was significantly lower (p < 0.0001). The HDL2-C subclass concentration did not differ significantly between patients and controls, while HDL3-C was lower in patients (11 ± 0.5 mg/dL) than in NC (23 ± 1, p < 0.0001). oxLDL levels were markedly increased in patients (1.92 ± 0.29 mg/L) compared to NC (0.22 ± 0.05, p < 0.0001). Patients on PD had higher levels of cholesterol (p < 0.001) and apolipoprotein B (p < 0.05) than patients on HD. However, HDL-C, HDL-C subclasses, and oxLDL concentrations did not differ significantly between PD and HD patients. It is concluded that patients with CKD have a nearly 10-fold elevation of oxLDL compared with NC. Patients on PD have differences in the lipid profile compared with patients on HD; however, both modalities seem to possess similar potential to atherosclerosis development.
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Reddy RRL, Srinivasan K. Dietary fenugreek and onion attenuate cholesterol gallstone formation in lithogenic diet-fed mice. Int J Exp Pathol 2011; 92:308-19. [PMID: 21756271 DOI: 10.1111/j.1365-2613.2011.00782.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
An animal study was conducted to evaluate the antilithogenic effect of a combination of dietary fenugreek seeds and onion. Lithogenic conditions were induced in mice by feeding them a high (0.5%) cholesterol diet (HCD) for 10 weeks. Fenugreek (12%) and onion (2%) were included individually and in combination in this HCD. Fenugreek, onion and their combination reduced the incidence of cholesterol gallstones by 75%, 27% and 76%, respectively, with attendant reduction in total cholesterol content by 38-42%, 50-72% and 61-80% in serum, liver and bile respectively. Consequently, the cholesterol/phospholipid ratio was reduced significantly in serum, liver and bile. The cholesterol saturation index of bile was reduced from 4.14 to 1.38 by the combination of fenugreek and onion and to 2.33 by onion alone. The phospholipid and bile acid contents of the bile were also increased. Changes in the hepatic enzyme activities (3-hydroxy-3-methylglutaryl Coenzyme A reductase, cholesterol-7α-hydroxylase and cholesterol-27-hydroxylase) induced by HCD were countered by fenugreek, onion and their combination. Hepatic lipid peroxides were reduced by 19-22% and 39-45% with fenugreek, onion and their combination included in the diet along with the HCD. Increased accumulation of fat in the liver and inflammation of the gallbladder membrane produced by HCD were reduced by fenugreek, onion and their combination. The antilithogenic influence was highest with fenugreek alone, and the presence of onion along with it did not further increase this effect. There was also no additive effect of the two spices in the recovery of antioxidant molecules or in the antioxidant enzyme activities.
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Affiliation(s)
- Raghunatha R L Reddy
- Department of Biochemistry and Nutrition, Central Food Technological Research Institute, CSIR, Mysore, India
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