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Biryulina NA, Sidorova YS, Petrov NA, Guseva GV, Mazo VK. The Effect of Semi-Synthetic and High-Fat High-Carbohydrate Diets Containing Cholesterol on Lipid and Cholesterol Metabolism in Male Wistar Rats. Bull Exp Biol Med 2023; 175:454-458. [PMID: 37770786 DOI: 10.1007/s10517-023-05884-1] [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: 02/13/2023] [Indexed: 09/30/2023]
Abstract
The choice of an optimal biological model of exogenous hypercholesterolemia is necessary for correct assessment of the cholesterol-lowering properties of bioactive substances and specialized food products and for validity of the experimental results. We studied the effects of cholesterol consumption in the composition of the standard semi-synthetic diet and high-fat high-carbohydrate diet for more than 3 months on lipid and cholesterol metabolism in male Wistar rats. Our findings suggest that cholesterol consumption in both diets led to a significant impairment of lipid and cholesterol metabolism, as well as an increase in insulin resistance in rats.
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Affiliation(s)
- N A Biryulina
- Federal Research Center of Nutrition and Biotechnology, Moscow, Russia.
| | - Yu S Sidorova
- Federal Research Center of Nutrition and Biotechnology, Moscow, Russia
| | - N A Petrov
- Federal Research Center of Nutrition and Biotechnology, Moscow, Russia
| | - G V Guseva
- Federal Research Center of Nutrition and Biotechnology, Moscow, Russia
| | - V K Mazo
- Federal Research Center of Nutrition and Biotechnology, Moscow, Russia
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2
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Chua D, Low ZS, Cheam GX, Ng AS, Tan NS. Utility of Human Relevant Preclinical Animal Models in Navigating NAFLD to MAFLD Paradigm. Int J Mol Sci 2022; 23:ijms232314762. [PMID: 36499091 PMCID: PMC9737809 DOI: 10.3390/ijms232314762] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/15/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
Fatty liver disease is an emerging contributor to disease burden worldwide. The past decades of work established the heterogeneous nature of non-alcoholic fatty liver disease (NAFLD) etiology and systemic contributions to the pathogenesis of the disease. This called for the proposal of a redefinition in 2020 to that of metabolic dysfunction-associated fatty liver disease (MAFLD) to better reflect the current understanding of the disease. To date, several clinical cohort studies comparing NAFLD and MAFLD hint at the relevancy of the new nomenclature in enriching for patients with more severe hepatic injury and extrahepatic comorbidities. However, the underlying systemic pathogenesis is still not fully understood. Preclinical animal models have been imperative in elucidating key biological mechanisms in various contexts, including intrahepatic disease progression, interorgan crosstalk and systemic dysregulation. Furthermore, they are integral in developing novel therapeutics against MAFLD. However, substantial contextual variabilities exist across different models due to the lack of standardization in several aspects. As such, it is crucial to understand the strengths and weaknesses of existing models to better align them to the human condition. In this review, we consolidate the implications arising from the change in nomenclature and summarize MAFLD pathogenesis. Subsequently, we provide an updated evaluation of existing MAFLD preclinical models in alignment with the new definitions and perspectives to improve their translational relevance.
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Affiliation(s)
- Damien Chua
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore
- Correspondence: (D.C.); (N.S.T.); Tel.: +65-63162941 (N.S.T.); Fax: +65-67913856 (N.S.T.)
| | - Zun Siong Low
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore
| | - Guo Xiang Cheam
- School of Biological Sciences, Nanyang Technological University Singapore, 60 Nanyang Drive, Singapore 637551, Singapore
| | - Aik Seng Ng
- Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford OX3 9DU, UK
| | - Nguan Soon Tan
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 11 Mandalay Road, Singapore 308232, Singapore
- School of Biological Sciences, Nanyang Technological University Singapore, 60 Nanyang Drive, Singapore 637551, Singapore
- Correspondence: (D.C.); (N.S.T.); Tel.: +65-63162941 (N.S.T.); Fax: +65-67913856 (N.S.T.)
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Kauerova S, Bartuskova H, Muffova B, Janousek L, Fronek J, Petras M, Poledne R, Kralova Lesna I. Statins Directly Influence the Polarization of Adipose Tissue Macrophages: A Role in Chronic Inflammation. Biomedicines 2021; 9:biomedicines9020211. [PMID: 33669779 PMCID: PMC7923086 DOI: 10.3390/biomedicines9020211] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/07/2021] [Accepted: 02/17/2021] [Indexed: 02/06/2023] Open
Abstract
Statins represent one of the most widely used classes of drugs in current medicine. In addition to a substantial decrease in atherogenic low density lipoprotein (LDL) particle concentrations, several large trials have documented their potent anti-inflammatory activity. Based on our preliminary data, we showed that statins are able to decrease the proportion of pro-inflammatory macrophages (CD14+16+CD36high) in visceral adipose tissue in humans. In the present study including 118 healthy individuals (living kidney donors), a very close relationship between the pro-inflammatory macrophage proportion and LDL cholesterol levels was found. This was confirmed after adjustment for the most important risk factors. The effect of statins on the proportion of pro-inflammatory macrophages was also confirmed in an experimental model of the Prague hereditary hypercholesterolemia rat. A direct anti-inflammatory effect of fluvastatin on human macrophage polarization in vitro was documented. Based on modifying the LDL cholesterol concentrations, statins are suggested to decrease the cholesterol inflow through the lipid raft of macrophages in adipose tissue and hypercholesterolemia to enhance the pro-inflammatory macrophage phenotype polarization. On the contrary, due to their opposite effect, statins respond with anti-inflammatory activity, affecting the whole organism.
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Affiliation(s)
- Sona Kauerova
- Laboratory for Atherosclerosis Research, Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic; (H.B.); (R.P.); (I.K.L.)
- Correspondence: ; Tel.: +420-236-05-5446
| | - Hana Bartuskova
- Laboratory for Atherosclerosis Research, Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic; (H.B.); (R.P.); (I.K.L.)
- Department of Physiology, Faculty of Science, Charles University, 128 00 Prague, Czech Republic
| | - Barbora Muffova
- Department of Immunology, Faculty of Science, Charles University, 128 00 Prague, Czech Republic;
| | - Libor Janousek
- Department of Transplantation Surgery, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic; (L.J.); (J.F.)
| | - Jiri Fronek
- Department of Transplantation Surgery, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic; (L.J.); (J.F.)
| | - Marek Petras
- Department of Epidemiology and Biostatistics, Third Faculty of Medicine, Charles University, 100 00 Prague, Czech Republic;
| | - Rudolf Poledne
- Laboratory for Atherosclerosis Research, Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic; (H.B.); (R.P.); (I.K.L.)
| | - Ivana Kralova Lesna
- Laboratory for Atherosclerosis Research, Centre for Experimental Medicine, Institute for Clinical and Experimental Medicine, 140 21 Prague, Czech Republic; (H.B.); (R.P.); (I.K.L.)
- Department of Anesthesia and Intensive Medicine, First Faculty of Medicine, Charles University and University Military Hospital, 169 02 Prague, Czech Republic
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Andreadou I, Schulz R, Badimon L, Adameová A, Kleinbongard P, Lecour S, Nikolaou PE, Falcão-Pires I, Vilahur G, Woudberg N, Heusch G, Ferdinandy P. Hyperlipidaemia and cardioprotection: Animal models for translational studies. Br J Pharmacol 2020; 177:5287-5311. [PMID: 31769007 DOI: 10.1111/bph.14931] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/30/2019] [Accepted: 11/06/2019] [Indexed: 12/12/2022] Open
Abstract
Hyperlipidaemia is a well-established risk factor for cardiovascular diseases and therefore, many animal model have been developed to mimic the human abnormal elevation of blood lipid levels. In parallel, extensive research for the alleviation of ischaemia/reperfusion injury has revealed that hyperlipidaemia is a major co-morbidity that attenuates the cardioprotective effect of conditioning strategies (preconditioning, postconditioning and remote conditioning) and that of pharmacological interventions by interfering with cardioprotective signalling pathways. In the present review article, we summarize the existing data on animal models of hypercholesterolaemia (total, low density and HDL abnormalities) and hypertriglyceridaemia used in ischaemia/reperfusion injury and protection from it. We also provide recommendations on preclinical animal models to be used for translations of the cardioprotective strategies into clinical practice. LINKED ARTICLES: This article is part of a themed issue on Risk factors, comorbidities, and comedications in cardioprotection. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v177.23/issuetoc.
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Affiliation(s)
- Ioanna Andreadou
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Rainer Schulz
- Institute for Physiology, Justus-Liebig University Giessen, Giessen, Germany
| | - Lina Badimon
- Cardiovascular Program ICCC, Research Institute-Hospital de la Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain.,CIBERCV, Instituto Salud Carlos III, Madrid, Spain.,Cardiovascular Research Chair Autonomous University of Barcelona (UAB), Barcelona, Spain
| | - Adriana Adameová
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University in Bratislava, Bratislava, Slovak Republic.,Center of Experimental Medicine, Slovak Academy of Sciences, Institute for Heart Research, Bratislava, Slovak Republic
| | - Petra Kleinbongard
- Institut für Pathophysiologie, Westdeutsches Herz- und Gefäßzentrum, Universitätsklinikum Essen, Essen, Germany
| | - Sandrine Lecour
- Hatter Institute for Cardiovascular Research in Africa, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | | | - Ines Falcão-Pires
- Unidade de Investigação Cardiovascular, Departamento de Cirurgia e Fisiologia, Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - Gemma Vilahur
- Cardiovascular Program ICCC, Research Institute-Hospital de la Santa Creu i Sant Pau, IIB-Sant Pau, Barcelona, Spain.,CIBERCV, Instituto Salud Carlos III, Madrid, Spain
| | - Nicholas Woudberg
- Hatter Institute for Cardiovascular Research in Africa, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Gerd Heusch
- Institut für Pathophysiologie, Westdeutsches Herz- und Gefäßzentrum, Universitätsklinikum Essen, Essen, Germany
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.,Pharmahungary Group, Szeged, Hungary
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Csonka C, Baranyai T, Tiszlavicz L, Fébel H, Szűcs G, Varga ZV, Sárközy M, Puskás LG, Antal O, Siska A, Földesi I, Ferdinandy P, Czakó L, Csont T. Isolated hypercholesterolemia leads to steatosis in the liver without affecting the pancreas. Lipids Health Dis 2017; 16:144. [PMID: 28750643 PMCID: PMC5532767 DOI: 10.1186/s12944-017-0537-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 07/13/2017] [Indexed: 02/06/2023] Open
Abstract
Background Lipid accumulation in the liver and pancreas is primarily caused by combined hyperlipidemia. However, the effect of isolated hypercholesterolemia without hypertriglyceridemia is not fully described. Therefore, our aim was to investigate whether hypercholesterolemia alone leads to alterations both in hepatic and pancreatic lipid panel and histology in rats. Methods Male Wistar rats were fed with 2% cholesterol +0.25% cholate-supplemented diet or standard chow for 12 weeks. Blood was collected at weeks 0, 4, 8 and 12 to measure serum cholesterol and triglyceride levels. At week 12, both the pancreas and the liver were isolated for further histological and biochemical analysis. Hepatic and plasma fatty acid composition was assessed by gas chromatography. Expression of mRNA of major enzymes involved in saturated/unsaturated fatty acid synthesis was analyzed by qPCR. In separate experiments serum enzyme activities and insulin levels were measured at week 9. Results At week 12, rats fed with 2% cholesterol +0.25% cholate-supplemented diet were characterized by elevated serum cholesterol (4.09 ± 0.20 vs. 2.89 ± 0.22 mmol/L, *p < 0.05) while triglyceride (2.27 ± 0.05 vs. 2.03 ± 0.03 mmol/L) and glucose levels (5.32 ± 0.14 vs. 5.23 ± 0.10 mmol/L) remained unchanged. Isolated hypercholesterolemia increased hepatic lipid accumulation, hepatic cholesterol (5.86 ± 0.22 vs. 1.60 ± 0.15 ng/g tissue, *p < 0.05) and triglyceride contents (19.28 ± 1.42 vs. 6.78 ± 0.71 ng/g tissue, *p < 0.05), and hepatic nitrotyrosine level (4.07 ± 0.52 vs. 2.59 ± 0.31 ng/mg protein, *p < 0.05). The histology and tissue lipid content of the pancreas was not affected. Serum total protein level, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities remained unchanged in response to isolated hypercholesterolemia while serum alkaline phosphatase activity (ALP) significantly increased. Plasma insulin levels did not change in response to isolated hypercholesterolemia suggesting an intact endocrine function of the pancreas. Isolated hypercholesterolemia caused a significantly increased hepatic and serum fatty acid level associated with a marked alteration of fatty acid composition. Hepatic expression of Δ9-desaturase (SCD1) was increased 4.92×, while expression of Δ5-desaturase and Δ6-desaturase were decreased (0.447× and 0.577×, respectively) due to isolated hypercholesterolemia. Conclusions Isolated hypercholesterolemia leads to hepatic steatosis and marked alterations in the hepatic lipid profile without affecting the pancreas. Altered fatty acid profile might mediate harmful effects of cholesterol in the liver.
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Affiliation(s)
- Csaba Csonka
- Metabolic Diseases and Cell Signaling Research Group, Department of Biochemistry, University of Szeged, Dóm tér 9, Szeged, H-6720, Hungary
| | - Tamás Baranyai
- Metabolic Diseases and Cell Signaling Research Group, Department of Biochemistry, University of Szeged, Dóm tér 9, Szeged, H-6720, Hungary.,1st Department of Internal Medicine, University of Szeged, Szeged, Hungary.,Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | | | - Hedvig Fébel
- Research Institute for Animal Breeding, Nutrition and Meat Science, Herceghalom, Szeged, Hungary
| | - Gergő Szűcs
- Metabolic Diseases and Cell Signaling Research Group, Department of Biochemistry, University of Szeged, Dóm tér 9, Szeged, H-6720, Hungary.,Department of Physiology, Anatomy and Neuroscience, Faculty of Science and Informatics, University of Szeged, Szeged, Hungary
| | - Zoltán V Varga
- Metabolic Diseases and Cell Signaling Research Group, Department of Biochemistry, University of Szeged, Dóm tér 9, Szeged, H-6720, Hungary.,Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | - Márta Sárközy
- Metabolic Diseases and Cell Signaling Research Group, Department of Biochemistry, University of Szeged, Dóm tér 9, Szeged, H-6720, Hungary
| | - László G Puskás
- Institute of Genetics, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
| | - Otilia Antal
- Institute of Genetics, Biological Research Center, Hungarian Academy of Sciences, Szeged, Hungary
| | - Andrea Siska
- Department of Laboratory Medicine, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Imre Földesi
- Department of Laboratory Medicine, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - Péter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary.,Pharmahungary Group, Szeged, Hungary
| | - László Czakó
- 1st Department of Internal Medicine, University of Szeged, Szeged, Hungary
| | - Tamás Csont
- Metabolic Diseases and Cell Signaling Research Group, Department of Biochemistry, University of Szeged, Dóm tér 9, Szeged, H-6720, Hungary.
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Babič M, Schmiedtová M, Poledne R, Herynek V, Horák D. In vivo monitoring of rat macrophages labeled with poly(l-lysine)-iron oxide nanoparticles. J Biomed Mater Res B Appl Biomater 2014; 103:1141-8. [PMID: 25283523 DOI: 10.1002/jbm.b.33292] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 08/18/2014] [Accepted: 09/12/2014] [Indexed: 12/23/2022]
Abstract
Coprecipitation of FeCl2 and FeCl3 with aqueous ammonia was used to prepare iron oxide nanoparticles dispersible in aqueous medium. Oxidation of the particles with sodium hypochlorite then yielded maghemite (γ-Fe2 O3 ) nanoparticles which were coated with two types of coating -d-mannose or poly(l-lysine) (PLL) as confirmed by FTIR analysis. The particles were <10 nm according to transmission electron microscopy. Their hydrodynamic particle size was ∼180 nm (by dynamic light scattering). The d-mannose-, PLL-coated, and neat γ-Fe2 O3 particles as well as commercial Resovist® were used to label rat macrophages. The viability and contrast properties of labeled macrophages were compared. PLL-coated γ-Fe2 O3 nanoparticles were found optimal. The labeled macrophages were injected to rats monitored in vivo by magnetic resonance imaging up to 48 h. Transport of macrophages labeled with PLL-γ-Fe2 O3 nanoparticles in rats was confirmed. Tracking of macrophages using the developed particles can be used for monitoring of inflammations and cell migration in cell therapy.
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Affiliation(s)
- Michal Babič
- Institute of Macromolecular Chemistry, Department of Polymer Particles, Academy of Sciences of the Czech Republic, 162 06, Prague 6, Czech Republic
| | - Martina Schmiedtová
- Institute for Clinical and Experimental Medicine, Laboratory for Atherosclerosis Research, 140 21, Prague 4, Czech Republic
| | - Rudolf Poledne
- Institute for Clinical and Experimental Medicine, Laboratory for Atherosclerosis Research, 140 21, Prague 4, Czech Republic
| | - Vít Herynek
- Institute for Clinical and Experimental Medicine, Laboratory for Atherosclerosis Research, 140 21, Prague 4, Czech Republic.,Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Vídeňská, 1083, Czech Republic
| | - Daniel Horák
- Institute of Macromolecular Chemistry, Department of Polymer Particles, Academy of Sciences of the Czech Republic, 162 06, Prague 6, Czech Republic
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