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Andrews SG, Koehle AM, Paudel D, Neuberger T, Ross AC, Singh V, Bottiglieri T, Castro R. Diet-Induced Severe Hyperhomocysteinemia Promotes Atherosclerosis Progression and Dysregulates the Plasma Metabolome in Apolipoprotein-E-Deficient Mice. Nutrients 2024; 16:330. [PMID: 38337615 PMCID: PMC10856797 DOI: 10.3390/nu16030330] [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: 12/03/2023] [Revised: 12/30/2023] [Accepted: 01/09/2024] [Indexed: 02/12/2024] Open
Abstract
Atherosclerosis and resulting cardiovascular disease are the leading causes of death in the US. Hyperhomocysteinemia (HHcy), or the accumulation of the intermediate amino acid homocysteine, is an independent risk factor for atherosclerosis, but the intricate biological processes mediating this effect remain elusive. Several factors regulate homocysteine levels, including the activity of several enzymes and adequate levels of their coenzymes, including pyridoxal phosphate (vitamin B6), folate (vitamin B9), and methylcobalamin (vitamin B12). To better understand the biological influence of HHcy on the development and progression of atherosclerosis, apolipoprotein-E-deficient (apoE-/- mice), a model for human atherosclerosis, were fed a hyperhomocysteinemic diet (low in methyl donors and B vitamins) (HHD) or a control diet (CD). After eight weeks, the plasma, aorta, and liver were collected to quantify methylation metabolites, while plasma was also used for a broad targeted metabolomic analysis. Aortic plaque burden in the brachiocephalic artery (BCA) was quantified via 14T magnetic resonance imaging (MRI). A severe accumulation of plasma and hepatic homocysteine and an increased BCA plaque burden were observed, thus confirming the atherogenic effect of the HHD. Moreover, a decreased methylation capacity in the plasma and aorta, indirectly assessed by the ratio of S-adenosylmethionine to S-adenosylhomocysteine (SAM:SAH) was detected in HHD mice together with a 172-fold increase in aortic cystathionine levels, indicating increased flux through the transsulfuration pathway. Betaine and its metabolic precursor, choline, were significantly decreased in the livers of HHD mice versus CD mice. Widespread changes in the plasma metabolome of HHD mice versus CD animals were detected, including alterations in acylcarnitines, amino acids, bile acids, ceramides, sphingomyelins, triacylglycerol levels, and several indicators of dysfunctional lipid metabolism. This study confirms the relevance of severe HHcy in the progression of vascular plaque and suggests novel metabolic pathways implicated in the pathophysiology of atherosclerosis.
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Affiliation(s)
- Stephen G. Andrews
- Department of Nutritional Sciences, Penn State University, University Park, PA 16802, USA; (S.G.A.); (A.M.K.); (D.P.); (A.C.R.); (V.S.)
| | - Anthony M. Koehle
- Department of Nutritional Sciences, Penn State University, University Park, PA 16802, USA; (S.G.A.); (A.M.K.); (D.P.); (A.C.R.); (V.S.)
| | - Devendra Paudel
- Department of Nutritional Sciences, Penn State University, University Park, PA 16802, USA; (S.G.A.); (A.M.K.); (D.P.); (A.C.R.); (V.S.)
| | - Thomas Neuberger
- Huck Institutes of the Life Sciences, Penn State University, University Park, PA 16802, USA;
- Department of Biomedical Engineering, Penn State University, University Park, PA 16802, USA
| | - A. Catharine Ross
- Department of Nutritional Sciences, Penn State University, University Park, PA 16802, USA; (S.G.A.); (A.M.K.); (D.P.); (A.C.R.); (V.S.)
| | - Vishal Singh
- Department of Nutritional Sciences, Penn State University, University Park, PA 16802, USA; (S.G.A.); (A.M.K.); (D.P.); (A.C.R.); (V.S.)
| | - Teodoro Bottiglieri
- Center of Metabolomics, Institute of Metabolic Disease, Baylor Scott and White Research Institute, Dallas, TX 75204, USA;
| | - Rita Castro
- Department of Nutritional Sciences, Penn State University, University Park, PA 16802, USA; (S.G.A.); (A.M.K.); (D.P.); (A.C.R.); (V.S.)
- Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
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Castro R, Gullette S, Whalen C, Mattie FJ, Ge X, Ross AC, Neuberger T. High-field magnetic resonance microscopy of aortic plaques in a mouse model of atherosclerosis. MAGMA (NEW YORK, N.Y.) 2023; 36:887-896. [PMID: 37421501 PMCID: PMC10667155 DOI: 10.1007/s10334-023-01102-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 04/26/2023] [Accepted: 05/15/2023] [Indexed: 07/10/2023]
Abstract
OBJECTIVES Pre-clinical models of human atherosclerosis are extensively used; however, traditional histological methods do not allow for a holistic view of vascular lesions. We describe an ex-vivo, high-resolution MRI method that allows the 3 dimensional imaging of the vessel for aortic plaque visualization and quantification. MATERIALS AND METHODS Aortas from apolipoprotein-E-deficient (apoE-/-) mice fed an atherogenic diet (group 1) or a control diet (group 2) were subjected to 14 T MR imaging using a 3D gradient echo sequence. The obtained data sets were reconstructed (Matlab), segmented, and analyzed (Avizo). The aortas were further sectioned and subjected to traditional histological analysis (Oil-Red O and hematoxylin staining) for comparison. RESULTS A resolution up to 15 × 10x10 μm3 revealed that plaque burden (mm3) was significantly (p < 0.05) higher in group 1 (0.41 ± 0.25, n = 4) than in group 2 (0.01 ± 0.01, n = 3). The achieved resolution provided similar detail on the plaque and the vessel wall morphology compared with histology. Digital image segmentation of the aorta's lumen, plaque, and wall offered three-dimensional visualizations of the entire, intact aortas. DISCUSSION 14 T MR microscopy provided histology-like details of pathologically relevant vascular lesions. This work may provide the path research needs to take to enable plaque characterization in clinical applications.
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Affiliation(s)
- Rita Castro
- Department of Nutritional Sciences, Penn State University, PA, 16802, University Park, USA
- Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Sean Gullette
- Huck Institutes of The Life Sciences, Penn State University, PA, 16802, University Park, USA
| | - Courtney Whalen
- Department of Nutritional Sciences, Penn State University, PA, 16802, University Park, USA
| | - Floyd J Mattie
- Department of Nutritional Sciences, Penn State University, PA, 16802, University Park, USA
| | - Ximing Ge
- Department of Nutritional Sciences, Penn State University, PA, 16802, University Park, USA
| | - A Catharine Ross
- Department of Nutritional Sciences, Penn State University, PA, 16802, University Park, USA
| | - Thomas Neuberger
- Huck Institutes of The Life Sciences, Penn State University, PA, 16802, University Park, USA.
- Department of Biomedical Engineering, Penn State University, PA, 16802, University Park, USA.
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Wu C, Duan X, Wang X, Wang L. Advances in the role of epigenetics in homocysteine-related diseases. Epigenomics 2023; 15:769-795. [PMID: 37718931 DOI: 10.2217/epi-2023-0207] [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] [Indexed: 09/19/2023] Open
Abstract
Homocysteine has a wide range of biological effects. However, the specific molecular mechanism of its pathogenicity is still unclear. The diseases induced by hyperhomocysteinemia (HHcy) are called homocysteine-related diseases. Clinical treatment of HHcy is mainly through folic acid and B-complex vitamins, which are not effective in reducing the associated end point events. Epigenetics is the alteration of heritable genes caused by DNA methylation, histone modification, noncoding RNAs and chromatin remodeling without altering the DNA sequence. In recent years the role of epigenetics in homocysteine-associated diseases has been gradually discovered. This article summarizes the latest evidence on the role of epigenetics in HHcy, providing new directions for its prevention and treatment.
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Affiliation(s)
- Chengyan Wu
- The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Xulei Duan
- The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Xuehui Wang
- The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
| | - Libo Wang
- The First Affiliated Hospital of Xinxiang Medical University, Xinxiang, Henan, China
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Sakr N, Glazova O, Shevkova L, Onyanov N, Kaziakhmedova S, Shilova A, Vorontsova MV, Volchkov P. Characterizing and Quenching Autofluorescence in Fixed Mouse Adrenal Cortex Tissue. Int J Mol Sci 2023; 24:ijms24043432. [PMID: 36834842 PMCID: PMC9968082 DOI: 10.3390/ijms24043432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Tissue autofluorescence of fixed tissue sections is a major concern of fluorescence microscopy. The adrenal cortex emits intense intrinsic fluorescence that interferes with signals from fluorescent labels, resulting in poor-quality images and complicating data analysis. We used confocal scanning laser microscopy imaging and lambda scanning to characterize the mouse adrenal cortex autofluorescence. We evaluated the efficacy of tissue treatment methods in reducing the intensity of the observed autofluorescence, such as trypan blue, copper sulfate, ammonia/ethanol, Sudan Black B, TrueVIEWTM Autofluorescence Quenching Kit, MaxBlockTM Autofluorescence Reducing Reagent Kit, and TrueBlackTM Lipofuscin Autofluorescence Quencher. Quantitative analysis demonstrated autofluorescence reduction by 12-95%, depending on the tissue treatment method and excitation wavelength. TrueBlackTM Lipofuscin Autofluorescence Quencher and MaxBlockTM Autofluorescence Reducing Reagent Kit were the most effective treatments, reducing the autofluorescence intensity by 89-93% and 90-95%, respectively. The treatment with TrueBlackTM Lipofuscin Autofluorescence Quencher preserved the specific fluorescence signals and tissue integrity, allowing reliable detection of fluorescent labels in the adrenal cortex tissue. This study demonstrates a feasible, easy-to-perform, and cost-effective method to quench tissue autofluorescence and improve the signal-to-noise ratio in adrenal tissue sections for fluorescence microscopy.
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Affiliation(s)
- Nawar Sakr
- Endocrinology Research Centre, Moscow 117292, Russia
- Genome Engineering Lab, Moscow Institute of Physics and Technology, Dolgoprudniy 141700, Russia
| | - Olga Glazova
- Endocrinology Research Centre, Moscow 117292, Russia
- Genome Engineering Lab, Moscow Institute of Physics and Technology, Dolgoprudniy 141700, Russia
| | - Liudmila Shevkova
- Endocrinology Research Centre, Moscow 117292, Russia
- Genome Engineering Lab, Moscow Institute of Physics and Technology, Dolgoprudniy 141700, Russia
| | - Nikita Onyanov
- Genome Engineering Lab, Moscow Institute of Physics and Technology, Dolgoprudniy 141700, Russia
| | - Samira Kaziakhmedova
- Genome Engineering Lab, Moscow Institute of Physics and Technology, Dolgoprudniy 141700, Russia
| | - Alena Shilova
- Faculty of Medicine, M.V. Lomonosov Moscow State University, 27-1, Lomonosovsky Prospect, Moscow 117192, Russia
| | - Maria V. Vorontsova
- Endocrinology Research Centre, Moscow 117292, Russia
- Genome Engineering Lab, Moscow Institute of Physics and Technology, Dolgoprudniy 141700, Russia
| | - Pavel Volchkov
- Endocrinology Research Centre, Moscow 117292, Russia
- Genome Engineering Lab, Moscow Institute of Physics and Technology, Dolgoprudniy 141700, Russia
- Correspondence:
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da Silva IV, Gullette S, Florindo C, Huang NK, Neuberger T, Ross AC, Soveral G, Castro R. The Effect of Nutritional Ketosis on Aquaporin Expression in Apolipoprotein E-Deficient Mice: Potential Implications for Energy Homeostasis. Biomedicines 2022; 10:biomedicines10051159. [PMID: 35625895 PMCID: PMC9138310 DOI: 10.3390/biomedicines10051159] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/08/2022] [Accepted: 05/13/2022] [Indexed: 02/01/2023] Open
Abstract
Ketogenic diets (KDs) are very low-carbohydrate, very high-fat diets which promote nutritional ketosis and impact energetic metabolism. Aquaporins (AQPs) are transmembrane channels that facilitate water and glycerol transport across cell membranes and are critical players in energy homeostasis. Altered AQP expression or function impacts fat accumulation and related comorbidities, such as the metabolic syndrome. Here, we sought to determine whether nutritional ketosis impacts AQPs expression in the context of an atherogenic model. To do this, we fed ApoE−/− (apolipoprotein E-deficient) mice, a model of human atherosclerosis, a KD (Kcal%: 1/81/18, carbohydrate/fat/protein) or a control diet (Kcal%: 70/11/18, carbohydrate/fat/protein) for 12 weeks. Plasma was collected for biochemical analysis. Upon euthanasia, livers, white adipose tissue (WAT), and brown adipose tissue (BAT) were used for gene expression studies. Mice fed the KD and control diets exhibited similar body weights, despite the profoundly different fat contents in the two diets. Moreover, KD-fed mice developed nutritional ketosis and showed increased expression of thermogenic genes in BAT. Additionally, these mice presented an increase in Aqp9 transcripts in BAT, but not in WAT, which suggests the participation of Aqp9 in the influx of excess plasma glycerol to fuel thermogenesis, while the up-regulation of Aqp7 in the liver suggests the involvement of this aquaporin in glycerol influx into hepatocytes. The relationship between nutritional ketosis, energy homeostasis, and the AQP network demands further investigation.
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Affiliation(s)
- Inês V. da Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal;
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal;
| | - Sean Gullette
- Huck Institutes of the Life Sciences, The Pennsylvania State University, State College, PA 16802, USA; (S.G.); (T.N.)
| | - Cristina Florindo
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal;
| | - Neil K. Huang
- Department of Nutritional Sciences, The Pennsylvania State University, State College, PA 16802, USA; (N.K.H.); (A.C.R.)
- Cardiovascular Nutrition Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02111, USA
| | - Thomas Neuberger
- Huck Institutes of the Life Sciences, The Pennsylvania State University, State College, PA 16802, USA; (S.G.); (T.N.)
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, State College, PA 16802, USA
| | - A. Catharine Ross
- Department of Nutritional Sciences, The Pennsylvania State University, State College, PA 16802, USA; (N.K.H.); (A.C.R.)
| | - Graça Soveral
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal;
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal;
- Correspondence: (G.S.); (R.C.)
| | - Rita Castro
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal;
- Department of Nutritional Sciences, The Pennsylvania State University, State College, PA 16802, USA; (N.K.H.); (A.C.R.)
- Correspondence: (G.S.); (R.C.)
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Castro R, Whalen CA, Gullette S, Mattie FJ, Florindo C, Heil SG, Huang NK, Neuberger T, Ross AC. A Hypomethylating Ketogenic Diet in Apolipoprotein E-Deficient Mice: A Pilot Study on Vascular Effects and Specific Epigenetic Changes. Nutrients 2021; 13:nu13103576. [PMID: 34684577 PMCID: PMC8537671 DOI: 10.3390/nu13103576] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/27/2021] [Accepted: 10/02/2021] [Indexed: 12/20/2022] Open
Abstract
Hyperhomocysteneinemia (HHcy) is common in the general population and is a risk factor for atherosclerosis by mechanisms that are still elusive. A hypomethylated status of epigenetically relevant targets may contribute to the vascular toxicity associated with HHcy. Ketogenic diets (KD) are diets with a severely restricted amount of carbohydrates that are being widely used, mainly for weight-loss purposes. However, studies associating nutritional ketosis and HHcy are lacking. This pilot study investigates the effects of mild HHcy induced by nutritional manipulation of the methionine metabolism in the absence of dietary carbohydrates on disease progression and specific epigenetic changes in the apolipoprotein-E deficient (apoE-/-) mouse model. ApoE-/- mice were either fed a KD, a diet with the same macronutrient composition but low in methyl donors (low methyl KD, LMKD), or control diet. After 4, 8 or 12 weeks plasma was collected for the quantification of: (1) nutritional ketosis, (i.e., the ketone body beta-hydroxybutyrate using a colorimetric assay); (2) homocysteine by HPLC; (3) the methylating potential S-adenosylmethionine to S-adenosylhomocysteine ratio (AdoHcy/AdoMet) by LC-MS/MS; and (4) the inflammatory cytokine monocyte chemoattractant protein 1 (MCP1) by ELISA. After 12 weeks, aortas were collected to assess: (1) the vascular AdoHcy/AdoMet ratio; (2) the volume of atherosclerotic lesions by high-field magnetic resonance imaging (14T-MRI); and (3) the content of specific epigenetic tags (H3K27me3 and H3K27ac) by immunofluorescence. The results confirmed the presence of nutritional ketosis in KD and LMKD mice but not in the control mice. As expected, mild HHcy was only detected in the LMKD-fed mice. Significantly decreased MCP1 plasma levels and plaque burden were observed in control mice versus the other two groups, together with an increased content of one of the investigated epigenetic tags (H3K27me3) but not of the other (H3K27ac). Moreover, we are unable to detect any significant differences at the p < 0.05 level for MCP1 plasma levels, vascular AdoMet:AdoHcy ratio levels, plaque burden, and specific epigenetic content between the latter two groups. Nevertheless, the systemic methylating index was significantly decreased in LMKD mice versus the other two groups, reinforcing the possibility that the levels of accumulated homocysteine were insufficient to affect vascular transmethylation reactions. Further studies addressing nutritional ketosis in the presence of mild HHcy should use a higher number of animals and are warranted to confirm these preliminary observations.
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Affiliation(s)
- Rita Castro
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (C.A.W.); (F.J.M.); (N.K.H.); (A.C.R.)
- Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal;
- Research Institute for Medicines (iMed.ULisboa), Universidade de Lisboa, 1649-003 Lisbon, Portugal
- Correspondence: ; Tel.: +1-814-865-2938
| | - Courtney A. Whalen
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (C.A.W.); (F.J.M.); (N.K.H.); (A.C.R.)
| | - Sean Gullette
- The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (S.G.); (T.N.)
| | - Floyd J. Mattie
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (C.A.W.); (F.J.M.); (N.K.H.); (A.C.R.)
| | - Cristina Florindo
- Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal;
| | - Sandra G. Heil
- Medical Center Rotterdam, Department of Clinical Chemistry, Erasmus MC University, 3015 GD Rotterdam, The Netherlands;
| | - Neil K. Huang
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (C.A.W.); (F.J.M.); (N.K.H.); (A.C.R.)
- Jean Mayer USDA Human Nutrition Research Center on Aging, Cardiovascular Nutrition Laboratory, Tufts University, Boston, MA 02111, USA
| | - Thomas Neuberger
- The Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (S.G.); (T.N.)
- Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - A. Catharine Ross
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (C.A.W.); (F.J.M.); (N.K.H.); (A.C.R.)
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da Silva IV, Whalen CA, Mattie FJ, Florindo C, Huang NK, Heil SG, Neuberger T, Ross AC, Soveral G, Castro R. An Atherogenic Diet Disturbs Aquaporin 5 Expression in Liver and Adipocyte Tissues of Apolipoprotein E-Deficient Mice: New Insights into an Old Model of Experimental Atherosclerosis. Biomedicines 2021; 9:150. [PMID: 33557105 PMCID: PMC7913888 DOI: 10.3390/biomedicines9020150] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/26/2021] [Accepted: 01/30/2021] [Indexed: 12/16/2022] Open
Abstract
The dysfunction of vascular endothelial cells is profoundly implicated in the pathogenesis of atherosclerosis and cardiovascular disease, the global leading cause of death. Aquaporins (AQPs) are membrane channels that facilitate water and glycerol transport across cellular membranes recently implicated in the homeostasis of the cardiovascular system. Apolipoprotein-E deficient (apoE-/-) mice are a common model to study the progression of atherosclerosis. Nevertheless, the pattern of expression of AQPs in this atheroprone model is poorly characterized. In this study, apoE-/- mice were fed an atherogenic high-fat (HF) or a control diet. Plasma was collected at multiple time points to assess metabolic disturbances. At the endpoint, the aortic atherosclerotic burden was quantified using high field magnetic resonance imaging. Moreover, the transcriptional levels of several AQP isoforms were evaluated in the liver, white adipocyte tissue (WAT), and brown adipocyte tissue (BAT). The results revealed that HF-fed mice, when compared to controls, presented an exacerbated systemic inflammation and atherosclerotic phenotype, with no major differences in systemic methylation status, circulating amino acids, or plasma total glutathione. Moreover, an overexpression of the isoform AQP5 was detected in all studied tissues from HF-fed mice when compared to controls. These results suggest a novel role for AQP5 on diet-induced atherosclerosis that warrants further investigation.
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Affiliation(s)
- Inês V. da Silva
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal;
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal;
| | - Courtney A. Whalen
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (C.A.W.); (F.J.M.); (N.K.H.); (A.C.R.)
| | - Floyd J. Mattie
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (C.A.W.); (F.J.M.); (N.K.H.); (A.C.R.)
| | - Cristina Florindo
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal;
| | - Neil K. Huang
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (C.A.W.); (F.J.M.); (N.K.H.); (A.C.R.)
- Cardiovascular Nutrition Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02111, USA
| | - Sandra G. Heil
- Department of Clinical Chemistry, Medical Center Rotterdam, Erasmus MC University, 3015 GD Rotterdam, The Netherlands;
| | - Thomas Neuberger
- Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA;
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - A. Catharine Ross
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (C.A.W.); (F.J.M.); (N.K.H.); (A.C.R.)
| | - Graça Soveral
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal;
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal;
| | - Rita Castro
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal;
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal;
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA 16802, USA; (C.A.W.); (F.J.M.); (N.K.H.); (A.C.R.)
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