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Tanase DM, Valasciuc E, Costea CF, Scripcariu DV, Ouatu A, Hurjui LL, Tarniceriu CC, Floria DE, Ciocoiu M, Baroi LG, Floria M. Duality of Branched-Chain Amino Acids in Chronic Cardiovascular Disease: Potential Biomarkers versus Active Pathophysiological Promoters. Nutrients 2024; 16:1972. [PMID: 38931325 PMCID: PMC11206939 DOI: 10.3390/nu16121972] [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: 05/19/2024] [Revised: 06/13/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024] Open
Abstract
Branched-chain amino acids (BCAAs), comprising leucine (Leu), isoleucine (Ile), and valine (Val), are essential nutrients vital for protein synthesis and metabolic regulation via specialized signaling networks. Their association with cardiovascular diseases (CVDs) has become a focal point of scientific debate, with emerging evidence suggesting both beneficial and detrimental roles. This review aims to dissect the multifaceted relationship between BCAAs and cardiovascular health, exploring the molecular mechanisms and clinical implications. Elevated BCAA levels have also been linked to insulin resistance (IR), type 2 diabetes mellitus (T2DM), inflammation, and dyslipidemia, which are well-established risk factors for CVD. Central to these processes are key pathways such as mammalian target of rapamycin (mTOR) signaling, nuclear factor kappa-light-chain-enhancer of activate B cells (NF-κB)-mediated inflammation, and oxidative stress. Additionally, the interplay between BCAA metabolism and gut microbiota, particularly the production of metabolites like trimethylamine-N-oxide (TMAO), adds another layer of complexity. Contrarily, some studies propose that BCAAs may have cardioprotective effects under certain conditions, contributing to muscle maintenance and metabolic health. This review critically evaluates the evidence, addressing the biological basis and signal transduction mechanism, and also discusses the potential for BCAAs to act as biomarkers versus active mediators of cardiovascular pathology. By presenting a balanced analysis, this review seeks to clarify the contentious roles of BCAAs in CVD, providing a foundation for future research and therapeutic strategies required because of the rising prevalence, incidence, and total burden of CVDs.
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Affiliation(s)
- Daniela Maria Tanase
- Department of Internal Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (D.M.T.); (A.O.); (D.E.F.); (M.F.)
- Internal Medicine Clinic, “St. Spiridon” County Clinical Emergency Hospital, Iasi 700111, Romania
| | - Emilia Valasciuc
- Department of Internal Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (D.M.T.); (A.O.); (D.E.F.); (M.F.)
- Internal Medicine Clinic, “St. Spiridon” County Clinical Emergency Hospital, Iasi 700111, Romania
| | - Claudia Florida Costea
- Department of Ophthalmology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
- 2nd Ophthalmology Clinic, “Prof. Dr. Nicolae Oblu” Emergency Clinical Hospital, 700309 Iași, Romania
| | - Dragos Viorel Scripcariu
- Department of General Surgery, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
- Regional Institute of Oncology, 700483 Iasi, Romania
| | - Anca Ouatu
- Department of Internal Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (D.M.T.); (A.O.); (D.E.F.); (M.F.)
- Internal Medicine Clinic, “St. Spiridon” County Clinical Emergency Hospital, Iasi 700111, Romania
| | - Loredana Liliana Hurjui
- Department of Morpho-Functional Sciences II, Physiology Discipline, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
- Hematology Laboratory, “St. Spiridon” County Clinical Emergency Hospital, 700111 Iasi, Romania
| | - Claudia Cristina Tarniceriu
- Department of Morpho-Functional Sciences I, Discipline of Anatomy, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
- Hematology Clinic, “Sf. Spiridon” County Clinical Emergency Hospital, 700111 Iasi, Romania
| | - Diana Elena Floria
- Department of Internal Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (D.M.T.); (A.O.); (D.E.F.); (M.F.)
- Institute of Gastroenterology and Hepatology, “St. Spiridon” County Clinical Emergency Hospital, 700111 Iasi, Romania
| | - Manuela Ciocoiu
- Department of Pathophysiology, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
| | - Livia Genoveva Baroi
- Department of Surgery, Faculty of Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania;
- Department of Vascular Surgery, “St. Spiridon” County Clinical Emergency Hospital, 700111 Iasi, Romania
| | - Mariana Floria
- Department of Internal Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (D.M.T.); (A.O.); (D.E.F.); (M.F.)
- Internal Medicine Clinic, “St. Spiridon” County Clinical Emergency Hospital, Iasi 700111, Romania
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Peng F, Liao M, Jin W, Liu W, Li Z, Fan Z, Zou L, Chen S, Zhu L, Zhao Q, Zhan G, Ouyang L, Peng C, Han B, Zhang J, Fu L. 2-APQC, a small-molecule activator of Sirtuin-3 (SIRT3), alleviates myocardial hypertrophy and fibrosis by regulating mitochondrial homeostasis. Signal Transduct Target Ther 2024; 9:133. [PMID: 38744811 PMCID: PMC11094072 DOI: 10.1038/s41392-024-01816-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 02/20/2024] [Accepted: 03/25/2024] [Indexed: 05/16/2024] Open
Abstract
Sirtuin 3 (SIRT3) is well known as a conserved nicotinamide adenine dinucleotide+ (NAD+)-dependent deacetylase located in the mitochondria that may regulate oxidative stress, catabolism and ATP production. Accumulating evidence has recently revealed that SIRT3 plays its critical roles in cardiac fibrosis, myocardial fibrosis and even heart failure (HF), through its deacetylation modifications. Accordingly, discovery of SIRT3 activators and elucidating their underlying mechanisms of HF should be urgently needed. Herein, we identified a new small-molecule activator of SIRT3 (named 2-APQC) by the structure-based drug designing strategy. 2-APQC was shown to alleviate isoproterenol (ISO)-induced cardiac hypertrophy and myocardial fibrosis in vitro and in vivo rat models. Importantly, in SIRT3 knockout mice, 2-APQC could not relieve HF, suggesting that 2-APQC is dependent on SIRT3 for its protective role. Mechanically, 2-APQC was found to inhibit the mammalian target of rapamycin (mTOR)-p70 ribosomal protein S6 kinase (p70S6K), c-jun N-terminal kinase (JNK) and transforming growth factor-β (TGF-β)/ small mother against decapentaplegic 3 (Smad3) pathways to improve ISO-induced cardiac hypertrophy and myocardial fibrosis. Based upon RNA-seq analyses, we demonstrated that SIRT3-pyrroline-5-carboxylate reductase 1 (PYCR1) axis was closely assoiated with HF. By activating PYCR1, 2-APQC was shown to enhance mitochondrial proline metabolism, inhibited reactive oxygen species (ROS)-p38 mitogen activated protein kinase (p38MAPK) pathway and thereby protecting against ISO-induced mitochondrialoxidative damage. Moreover, activation of SIRT3 by 2-APQC could facilitate AMP-activated protein kinase (AMPK)-Parkin axis to inhibit ISO-induced necrosis. Together, our results demonstrate that 2-APQC is a targeted SIRT3 activator that alleviates myocardial hypertrophy and fibrosis by regulating mitochondrial homeostasis, which may provide a new clue on exploiting a promising drug candidate for the future HF therapeutics.
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Affiliation(s)
- Fu Peng
- West China School of Pharmacy and Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Minru Liao
- West China School of Pharmacy and Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Wenke Jin
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Wei Liu
- West China School of Pharmacy and Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Zixiang Li
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Zhichao Fan
- West China School of Pharmacy and Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Ling Zou
- West China School of Pharmacy and Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, 518060, China
| | - Siwei Chen
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, 518060, China
| | - Lingjuan Zhu
- School of Traditional Chinese Materia Medica, Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Qian Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Gu Zhan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Liang Ouyang
- West China School of Pharmacy and Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Jin Zhang
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen, 518060, China.
| | - Leilei Fu
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China.
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Krzesiak A, Enea C, Faivre JF, Bescond J, Vanderbrouck C, Cognard C, Sebille S, Bosquet L, Delpech N. Combined cardiovascular effects of ovariectomy and high-intensity interval training in female spontaneously hypertensive rats. J Appl Physiol (1985) 2024; 136:1195-1208. [PMID: 38572539 DOI: 10.1152/japplphysiol.00518.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 04/05/2024] Open
Abstract
Hypertensive postmenopausal women are more likely to develop adverse cardiac remodeling and respond less effectively to drug treatment than men. High-intensity interval exercise (HIIE) is a nonpharmacological strategy for the treatment of hypertension; however, the effectiveness in women remains uncertain. This study was designed to evaluate 1) the effects of HIIE training upon morphological and functional markers of cardiovascular health in female SHR and 2) to determine whether the hormonal shift induced by ovariectomy could influence cardiovascular responses to HIIE. Thirty-six SHR were randomly assigned to four groups: ovariectomized sedentary, ovariectomized trained, sham-operated sedentary, and sham-operated trained. The trained rats performed HIIE 5 days/wk for 8 wk. Blood pressure and echocardiographic measurements were performed before and after training in animals. Cardiac response to β-adrenergic stimulation and the expression of calcium regulatory proteins and estrogen receptors in heart samples were assessed. Endothelium-dependent vasorelaxation in response to acetylcholine was evaluated in aortic rings as well as the expression of nitric oxide synthase isoforms (eNOS and P-eNOS) by Western blotting. In both groups of trained SHR, HIIE induced eccentric cardiac remodeling with greater inotropic and chronotropic effects, as well as an increase in SERCA and β1AR expression. However, although the trained rats showed improved endothelial function and expression of eNOS and P-eNOS in the aorta, there was no demonstrated effect on blood pressure. In addition, the responses to HIIE training were not affected by ovariectomy. This work highlights the importance of assessing the cardiovascular efficacy and safety of different exercise modalities in women.NEW & NOTEWORTHY This study reports the effects of high-intensity interval exercise (HIIE) training on cardiac and endothelial function in female hypertensive rats. Despite a lack of effect on blood pressure (BP), HIIE training induces eccentric cardiac remodeling with greater functionals effects. Furthermore, training has beneficial effects on endothelial function. However, ovarian hormones do not seem to modulate cardiac and aortic adaptations to this training modality. All this underlines the need to consider training modalities on the cardiovascular system in women.
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Affiliation(s)
- Amandine Krzesiak
- Laboratoire MOVE (UR 20296), Faculty of Sport Sciences, University of Poitiers, Poitiers, France
- Laboratoire PRéTI (UR 24184), University of Poitiers, Poitiers, France
| | - Carina Enea
- Laboratoire MOVE (UR 20296), Faculty of Sport Sciences, University of Poitiers, Poitiers, France
| | | | - Jocelyn Bescond
- Laboratoire PRéTI (UR 24184), University of Poitiers, Poitiers, France
| | | | - Christian Cognard
- Laboratoire PRéTI (UR 24184), University of Poitiers, Poitiers, France
| | - Stéphane Sebille
- Laboratoire PRéTI (UR 24184), University of Poitiers, Poitiers, France
| | - Laurent Bosquet
- Laboratoire MOVE (UR 20296), Faculty of Sport Sciences, University of Poitiers, Poitiers, France
| | - Nathalie Delpech
- Laboratoire MOVE (UR 20296), Faculty of Sport Sciences, University of Poitiers, Poitiers, France
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Visanji M, Venegas-Pino DE, Werstuck GH. Understanding One Half of the Sex Difference Equation: The Modulatory Effects of Testosterone on Diabetic Cardiomyopathy. THE AMERICAN JOURNAL OF PATHOLOGY 2024; 194:551-561. [PMID: 38061627 DOI: 10.1016/j.ajpath.2023.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 10/31/2023] [Accepted: 11/20/2023] [Indexed: 12/20/2023]
Abstract
Diabetes is a prevalent disease, primarily characterized by high blood sugar (hyperglycemia). Significantly higher rates of myocardial dysfunction have been noted in individuals with diabetes, even in those without coronary artery disease or high blood pressure (hypertension). Numerous molecular mechanisms have been identified through which diabetes contributes to the pathology of diabetic cardiomyopathy, which presents as cardiac hypertrophy and fibrosis. At the cellular level, oxidative stress and inflammation in cardiomyocytes are triggered by hyperglycemia. Although males are generally more likely to develop cardiovascular disease than females, diabetic males are less likely to develop diabetic cardiomyopathy than are diabetic females. One reason for these differences may be the higher levels of serum testosterone in males compared with females. Although testosterone appears to protect against cardiomyocyte oxidative stress and exacerbate hypertrophy, its role in inflammation and fibrosis is much less clear. Additional preclinical and clinical studies will be required to delineate testosterone's effect on the diabetic heart.
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Affiliation(s)
- Mika'il Visanji
- Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | | | - Geoff H Werstuck
- Thrombosis and Atherosclerosis Research Institute, Hamilton, Ontario, Canada; Department of Medicine, McMaster University, Hamilton, Ontario, Canada.
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Gonçalves LT, Costa DTD, Rouver WDN, Santos RLD. Testosterone modulates vasodilation in mesenteric arteries of hypertensive rats. Life Sci 2024; 338:122405. [PMID: 38176584 DOI: 10.1016/j.lfs.2023.122405] [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: 11/05/2023] [Revised: 12/22/2023] [Accepted: 12/28/2023] [Indexed: 01/06/2024]
Abstract
AIMS To evaluate the effects of testosterone on endothelium-dependent vasodilation and oxidative stress in mesenteric resistance arteries. MAIN METHODS Spontaneously hypertensive rats (SHR), aged 8 to 10 weeks, were divided into four groups: intact (SHAM), intact treated with testosterone (TTO; 3 mg/kg/day) via subcutaneous route (s.c.), intact treated with testosterone and anastrozole [aromatase enzyme inhibitor (TTO + ANA; 0.1 mg/kg/day, s.c.)] and intact treated with testosterone and finasteride [5 α-reductase enzyme inhibitor (TTO + FIN; 5 mg/kg/day, s.c.)] for four weeks. Concentration-response curves to acetylcholine (ACh, 0.1 nmol/L - 10 μmol/L) were obtained in mesenteric resistance arteries previously contracted with phenylephrine (PE, 3 μmol/L), before and after the use of selective inhibitors. Reactive oxygen species (ROS) levels were assessed in the vessels and the endothelium analyzed by scanning electron microscopy. KEY FINDINGS TTO group showed a lower participation of nitric oxide (NO), increased oxidative stress, and participation of prostanoids and endothelium-dependent hyperpolarization (EDH), possibly to maintain the vasodilator response. Lower participation of NO and prostanoids, combined to an increased participation of EDH, were observed in the TTO + ANA group, in addition to higher levels of ROS and altered endothelial morphology. The vasodilation to ACh was impaired in TTO + FIN, along increased participation of NO, reduction of prostanoids, and greater EDH-dependent vasodilation. SIGNIFICANCE Testosterone contributes to endothelial vasodilation by enhancing EDH through an increased participation of epoxyeicosatrienoic acids. While the decrease in NO appears to involve the participation of dihydrotestosterone, 17 β-estradiol seems to stimulate the action of the NO pathway and prostanoids.
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Affiliation(s)
- Leticia Tinoco Gonçalves
- Department of Physiological Sciences, Health Sciences Center, Universidade Federal do Espírito Santo (UFES), Vitoria, ES, Brazil
| | - Débora Tacon da Costa
- Department of Physiological Sciences, Health Sciences Center, Universidade Federal do Espírito Santo (UFES), Vitoria, ES, Brazil
| | - Wender do Nascimento Rouver
- Department of Physiological Sciences, Health Sciences Center, Universidade Federal do Espírito Santo (UFES), Vitoria, ES, Brazil
| | - Roger Lyrio Dos Santos
- Department of Physiological Sciences, Health Sciences Center, Universidade Federal do Espírito Santo (UFES), Vitoria, ES, Brazil.
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Shawky NM, Reckelhoff JF, Alexander BT, Cardozo LLY. Insights Into the Cardiomodulatory Effects of Sex Hormones: Implications in Transgender Care. Hypertension 2023; 80:1810-1820. [PMID: 37462057 PMCID: PMC10530189 DOI: 10.1161/hypertensionaha.123.19501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Transgender individuals that undergo gender-affirming hormone therapy may experience discrimination in the health care setting with a lack of access to medical personnel competent in transgender medicine. Recent evidence suggests that gender-affirming hormone therapy is associated with an increased risk of cardiovascular diseases and cardiovascular risk factors. A recent statement from the American Heart Association reinforces the importance of cardiovascular-focused clinical management and the necessity for more research into the impact of gender-affirming hormone therapy. With this in mind, this review will highlight the known cardiovascular risk factors associated with gender-affirming hormone therapy and identify potential molecular mechanisms determined from the limited animal studies that explore the role of cross-sex steroids on cardiovascular risk. The lack of data in this understudied population requires future clinical and basic research studies to inform and educate clinicians and their transgender patient population to promote precision medicine for their care to improve their quality of life.
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Affiliation(s)
- Noha M. Shawky
- Department of Cell and Molecular Biology, University of Mississippi Medical Center, Jackson, MS
- Mississippi Center of Excellence in Perinatal Research, University of Mississippi Medical Center, Jackson, MS
- Women’s Health Research Center, University of Mississippi Medical Center, Jackson, MS
- Cardiovascular Renal Research Center, University of Mississippi Medical Center, Jackson, MS
| | - Jane F. Reckelhoff
- Department of Cell and Molecular Biology, University of Mississippi Medical Center, Jackson, MS
- Mississippi Center of Excellence in Perinatal Research, University of Mississippi Medical Center, Jackson, MS
- Women’s Health Research Center, University of Mississippi Medical Center, Jackson, MS
- Cardiovascular Renal Research Center, University of Mississippi Medical Center, Jackson, MS
| | - Barbara T. Alexander
- Department of Physiology, University of Mississippi Medical Center, Jackson, MS
- Mississippi Center of Excellence in Perinatal Research, University of Mississippi Medical Center, Jackson, MS
- Women’s Health Research Center, University of Mississippi Medical Center, Jackson, MS
- Cardiovascular Renal Research Center, University of Mississippi Medical Center, Jackson, MS
| | - Licy L. Yanes Cardozo
- Department of Cell and Molecular Biology, University of Mississippi Medical Center, Jackson, MS
- Department of Medicine, University of Mississippi Medical Center, Jackson, MS
- Department of Physiology, University of Mississippi Medical Center, Jackson, MS
- Mississippi Center of Excellence in Perinatal Research, University of Mississippi Medical Center, Jackson, MS
- Women’s Health Research Center, University of Mississippi Medical Center, Jackson, MS
- Cardiovascular Renal Research Center, University of Mississippi Medical Center, Jackson, MS
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Physiological Impact of a Synthetic Elastic Protein in Arterial Diseases Related to Alterations of Elastic Fibers: Effect on the Aorta of Elastin-Haploinsufficient Male and Female Mice. Int J Mol Sci 2022; 23:ijms232113464. [DOI: 10.3390/ijms232113464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/18/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022] Open
Abstract
Elastic fibers, made of elastin (90%) and fibrillin-rich microfibrils (10%), are the key extracellular components, which endow the arteries with elasticity. The alteration of elastic fibers leads to cardiovascular dysfunctions, as observed in elastin haploinsufficiency in mice (Eln+/-) or humans (supravalvular aortic stenosis or Williams–Beuren syndrome). In Eln+/+ and Eln+/- mice, we evaluated (arteriography, histology, qPCR, Western blots and cell cultures) the beneficial impact of treatment with a synthetic elastic protein (SEP), mimicking several domains of tropoelastin, the precursor of elastin, including hydrophobic elasticity-related domains and binding sites for elastin receptors. In the aorta or cultured aortic smooth muscle cells from these animals, SEP treatment induced a synthesis of elastin and fibrillin-1, a thickening of the aortic elastic lamellae, a decrease in wall stiffness and/or a strong trend toward a reduction in the elastic lamella disruptions in Eln+/- mice. SEP also modified collagen conformation and transcript expressions, enhanced the aorta constrictive response to phenylephrine in several animal groups, and, in female Eln+/- mice, it restored the normal vasodilatory response to acetylcholine. SEP should now be considered as a biomimetic molecule with an interesting potential for future treatments of elastin-deficient patients with altered arterial structure/function.
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Liu Y, Zhang C, Zhang Y, Jiang X, Liang Y, Wang H, Li Y, Sun G. Association between Excessive Dietary Branched-Chain Amino Acids Intake and Hypertension Risk in Chinese Population. Nutrients 2022; 14:nu14132582. [PMID: 35807761 PMCID: PMC9268479 DOI: 10.3390/nu14132582] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 06/16/2022] [Accepted: 06/20/2022] [Indexed: 01/27/2023] Open
Abstract
The dietary intake of branched-chain amino acids (BCAAs) has been reported to be associated with both elevated blood pressure (BP) and hypertension risk, while published findings were inconsistent, and the causality has never been well disclosed. We performed this prospective study aiming to find out the relationship between dietary BCAAs intake and hypertension risk in the Chinese population. A total of 8491 participants (40,285 person-years) were selected. The levels of dietary BCAAs intake were estimated using the 24-h Food Frequency Questionnaire. Associations of both BP values and hypertension risk with per standard deviation increase of BCAAs were estimated using linear and COX regression analysis, respectively. The hazard ratios and 95% confidence interval were given. Restricted cubic spline analysis (RCS) was used to estimate the nonlinearity. Both systolic and diastolic BP values at the end points of follow-up were positively associated with dietary BCAAs intake. Positive associations between BCAAs intake and hypertension risk were shown in both men and women. By performing a RCS analysis, the nonlinear relationship between BCAAs intake and hypertension was shown. As the intake levels of Ile, Leu, and Val, respectively, exceeded 2.49 g/day, 4.91 g/day, and 2.88 g/day in men (2.16 g/day, 3.84 g/day, and 2.56 g/day in women), the hypertension risk increased. Our findings could provide some concrete evidence in the primary prevention of hypertension based on dietary interventions.
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Affiliation(s)
- Yuyan Liu
- Department of Clinical Epidemiology, The Fourth Affiliated Hospital of China Medical University, Shenyang 110031, China;
| | - Chengwen Zhang
- Research Center of Environmental and Non-Communicable Disease, School of Public Health, China Medical University, Shenyang 110000, China; (C.Z.); (Y.Z.); (X.J.); (Y.L.); (H.W.); (G.S.)
| | - Yuan Zhang
- Research Center of Environmental and Non-Communicable Disease, School of Public Health, China Medical University, Shenyang 110000, China; (C.Z.); (Y.Z.); (X.J.); (Y.L.); (H.W.); (G.S.)
| | - Xuheng Jiang
- Research Center of Environmental and Non-Communicable Disease, School of Public Health, China Medical University, Shenyang 110000, China; (C.Z.); (Y.Z.); (X.J.); (Y.L.); (H.W.); (G.S.)
| | - Yuanhong Liang
- Research Center of Environmental and Non-Communicable Disease, School of Public Health, China Medical University, Shenyang 110000, China; (C.Z.); (Y.Z.); (X.J.); (Y.L.); (H.W.); (G.S.)
| | - Huan Wang
- Research Center of Environmental and Non-Communicable Disease, School of Public Health, China Medical University, Shenyang 110000, China; (C.Z.); (Y.Z.); (X.J.); (Y.L.); (H.W.); (G.S.)
| | - Yongfang Li
- Research Center of Environmental and Non-Communicable Disease, School of Public Health, China Medical University, Shenyang 110000, China; (C.Z.); (Y.Z.); (X.J.); (Y.L.); (H.W.); (G.S.)
- Correspondence:
| | - Guifan Sun
- Research Center of Environmental and Non-Communicable Disease, School of Public Health, China Medical University, Shenyang 110000, China; (C.Z.); (Y.Z.); (X.J.); (Y.L.); (H.W.); (G.S.)
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9
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Robinson GA, Pineda-Torra I, Ciurtin C, Jury EC. Sex Differences in Lipid Metabolism: Implications for Systemic Lupus Erythematosus and Cardiovascular Disease Risk. Front Med (Lausanne) 2022; 9:914016. [PMID: 35712086 PMCID: PMC9197418 DOI: 10.3389/fmed.2022.914016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/02/2022] [Indexed: 11/13/2022] Open
Abstract
It is known that healthy women during childbearing years have a lower risk of cardiovascular disease (CVD) and coronary heart disease compared to age matched men. Various traditional risk factors have been shown to confer differential CVD susceptibilities by sex. Atherosclerosis is a major cause of CVD and mortality and sex differences in CVD risk could be due to reduced atherogenic low and very low-density lipoproteins (LDL and VLDL) and increased atheroprotective high density lipoproteins (HDLs) in women. In contrast, patients with systemic lupus erythematosus (SLE), a chronic inflammatory disease that predominately affects women, have an increased atherosclerotic and CVD risk. This increased CVD risk is largely associated with dyslipidaemia, the imbalance of atherogenic and atheroprotective lipoproteins, a conventional CVD risk factor. In many women with SLE, dyslipidaemia is characterised by elevated LDL and reduced HDL, eradicating the sex-specific CVD protection observed in healthy women compared to men. This review will explore this paradox, reporting what is known regarding sex differences in lipid metabolism and CVD risk in the healthy population and transgender individuals undergoing cross-sex hormone therapy, and provide evidence for how these differences may be compromised in an autoimmune inflammatory disease setting. This could lead to better understanding of mechanistic changes in lipid metabolism driving the increased CVD risk by sex and in autoimmunity and highlight potential therapeutic targets to help reduce this risk.
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Affiliation(s)
- George A. Robinson
- Division of Medicine, Centre for Rheumatology Research, University College London, London, United Kingdom
- Division of Medicine, Centre for Adolescent Rheumatology Versus Arthritis, University College London, London, United Kingdom
| | - Ines Pineda-Torra
- Division of Medicine, Centre for Cardiometabolic and Vascular Science, University College London, London, United Kingdom
| | - Coziana Ciurtin
- Division of Medicine, Centre for Rheumatology Research, University College London, London, United Kingdom
- Division of Medicine, Centre for Adolescent Rheumatology Versus Arthritis, University College London, London, United Kingdom
| | - Elizabeth C. Jury
- Division of Medicine, Centre for Rheumatology Research, University College London, London, United Kingdom
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