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Severi I, Perugini J, Ruocco C, Coppi L, Pedretti S, Di Mercurio E, Senzacqua M, Ragni M, Imperato G, Valerio A, Mitro N, Crestani M, Nisoli E, Giordano A. Activation of a non-neuronal cholinergic system in visceral white adipose tissue of obese mice and humans. Mol Metab 2024; 79:101862. [PMID: 38141849 PMCID: PMC10792749 DOI: 10.1016/j.molmet.2023.101862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 12/07/2023] [Accepted: 12/20/2023] [Indexed: 12/25/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Since white adipose tissue (WAT) lacks parasympathetic cholinergic innervation, the source of the acetylcholine (ACh) acting on white adipocyte cholinergic receptors is unknown. This study was designed to identify ACh-producing cells in mouse and human visceral WAT and to determine whether a non-neuronal cholinergic system becomes activated in obese inflamed WAT. METHODS Mouse epididymal WAT (eWAT) and human omental fat were studied in normal and obese subjects. The expression of the key molecules involved in cholinergic signaling was evaluated by qRT-PCR and western blotting whereas their tissue distribution and cellular localization were investigated by immunohistochemistry, confocal microscopy and in situ hybridization. ACh levels were measured by liquid chromatography/tandem mass spectrometry. The cellular effects of ACh were assessed in cultured human multipotent adipose-derived stem cell (hMADS) adipocytes. RESULTS In mouse eWAT, diet-induced obesity modulated the expression of key cholinergic molecular components and, especially, raised the expression of choline acetyltransferase (ChAT), the ACh-synthesizing enzyme, which was chiefly detected in interstitial macrophages, in macrophages forming crown-like structures (CLSs), and in multinucleated giant cells (MGCs). The stromal vascular fraction of obese mouse eWAT contained significantly higher ACh and choline levels than that of control mice. ChAT was undetectable in omental fat from healthy subjects, whereas it was expressed in a number of interstitial macrophages, CLSs, and MGCs from some obese individuals. In hMADS adipocytes stressed with tumor necrosis factor α, ACh, alone or combined with rivastigmine, significantly blunted monocyte chemoattractant protein 1 and interleukin 6 expression, it partially but significantly, restored adiponectin and GLUT4 expression, and promoted glucose uptake. CONCLUSIONS In mouse and human visceral WAT, obesity induces activation of a macrophage-dependent non-neuronal cholinergic system that is capable of exerting anti-inflammatory and insulin-sensitizing effects on white adipocytes.
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Affiliation(s)
- Ilenia Severi
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, 60126 Ancona, Italy
| | - Jessica Perugini
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, 60126 Ancona, Italy
| | - Chiara Ruocco
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milano, Italy
| | - Lara Coppi
- Department of Pharmacological and Biomolecular Sciences, University of Milan, 20122 Milano, Italy
| | - Silvia Pedretti
- Department of Pharmacological and Biomolecular Sciences, University of Milan, 20122 Milano, Italy
| | - Eleonora Di Mercurio
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, 60126 Ancona, Italy
| | - Martina Senzacqua
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, 60126 Ancona, Italy
| | - Maurizio Ragni
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milano, Italy
| | - Gabriele Imperato
- Department of Pharmacological and Biomolecular Sciences, University of Milan, 20122 Milano, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, University of Brescia, 25123 Brescia, Italy
| | - Nico Mitro
- Department of Pharmacological and Biomolecular Sciences, University of Milan, 20122 Milano, Italy; Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Milano, Italy
| | - Maurizio Crestani
- Department of Pharmacological and Biomolecular Sciences, University of Milan, 20122 Milano, Italy
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milano, Italy
| | - Antonio Giordano
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, 60126 Ancona, Italy; Center of Obesity, Marche Polytechnic University-United Hospitals, Ancona, Italy.
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Malavazos AE, Dubini C, Milani V, Boveri S, Meregalli C, Bertolini C, Buscemi C, Cardani R, Renna LV, Trevisan MB, Scravaglieri V, Cuppone MT, Menicanti L, Costa E, Ambrogi F, Ruocco C, Carruba M, Iacobellis G, Nisoli E, Corsi Romanelli MM. BNT162b2 Booster Dose Elicits a Robust Antibody Response in Subjects with Abdominal Obesity and Previous SARS-CoV-2 Infection. Vaccines (Basel) 2023; 11:1796. [PMID: 38140200 PMCID: PMC10747120 DOI: 10.3390/vaccines11121796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/24/2023] [Accepted: 11/29/2023] [Indexed: 12/24/2023] Open
Abstract
Little is known about the long-term durability of the induced immune response in subjects with obesity, particularly in those with an abdominal distribution of adipose tissue. We evaluated SARS-CoV-2-specific antibody responses after BNT162b2 vaccine booster dose, comparing individuals with and without abdominal obesity (AO), discerning between individuals previously infected or not. IgG-TrimericS were measured in 511 subjects at baseline, on the 21st day after vaccine dose 1, and at 1, 3, 6, and 9 months from dose 2, and at 1 and 3 months following the booster dose. To detect SARS-CoV-2 infection, nucleocapsid antibodies were measured at baseline and at the end of the study. Multivariable linear regression evaluated the three-month difference in the absolute variation in IgG-TrimericS levels from booster dose, showing AO and SARS-CoV-2 infection status interactions (p = 0.016). Regardless of possible confounding factors and IgG-TrimericS levels at the booster dose, AO is associated with a higher absolute change in IgG-TrimericS in prior infected individuals (p = 0.0125). In the same regression model, no interaction is highlighted using BMI (p = 0.418). The robust response in the development of antibodies after booster dose, observed in people with AO and previous infection, may support the recommendations to administer a booster dose in this population group.
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Affiliation(s)
- Alexis Elias Malavazos
- Endocrinology Unit, Clinical Nutrition and Cardiometabolic Prevention Service, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy (C.M.)
- Department of Biomedical, Surgical and Dental Sciences, University of Milano, 20122 Milan, Italy
| | - Carola Dubini
- Endocrinology Unit, Clinical Nutrition and Cardiometabolic Prevention Service, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy (C.M.)
| | - Valentina Milani
- Laboratory of Biostatistics and Data Management, Scientific Directorate, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy
| | - Sara Boveri
- Laboratory of Biostatistics and Data Management, Scientific Directorate, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy
| | - Chiara Meregalli
- Endocrinology Unit, Clinical Nutrition and Cardiometabolic Prevention Service, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy (C.M.)
| | | | - Carola Buscemi
- Unit of Internal Medicine, V. Cervello Hospital, 90146 Palermo, Italy
- Clinical Nutrition Unit, Department of Health Promotion, Maternal and Childhood, Internal and Specialized Medicine of Excellence (PROMISE), University of Palermo, 90100 Palermo, Italy
| | - Rosanna Cardani
- Biobank BioCor, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy (L.V.R.)
| | - Laura Valentina Renna
- Biobank BioCor, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy (L.V.R.)
| | - Manuel Bruno Trevisan
- Endocrinology Unit, Clinical Nutrition and Cardiometabolic Prevention Service, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy (C.M.)
| | - Valentina Scravaglieri
- Endocrinology Unit, Clinical Nutrition and Cardiometabolic Prevention Service, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy (C.M.)
| | - Maria Teresa Cuppone
- Scientific Directorate, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy
| | - Lorenzo Menicanti
- Scientific Directorate, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy
| | - Elena Costa
- Service of Laboratory Medicine, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy
| | - Federico Ambrogi
- Laboratory of Biostatistics and Data Management, Scientific Directorate, IRCCS Policlinico San Donato, San Donato Milanese, 20097 Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milano, 20122 Milan, Italy
| | - Chiara Ruocco
- Centre for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milan, Italy; (C.R.); (E.N.)
| | - Michele Carruba
- Centre for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milan, Italy; (C.R.); (E.N.)
| | - Gianluca Iacobellis
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Miami, Miami, FL 33136, USA;
| | - Enzo Nisoli
- Centre for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milan, Italy; (C.R.); (E.N.)
| | - Massimiliano Marco Corsi Romanelli
- Department of Biomedical Sciences for Health, University of Milan, 00133 Milan, Italy;
- Department of Clinical and Experimental Pathology, Istituto Auxologico Italiano IRCCS, 20100 Milan, Italy
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Ragni M, Canciani L, Spataro L, Ruocco C, Valerio A, Nisoli E. An amino acid mixture, enriched with Krebs cycle intermediates, enhances extracellular matrix gene expression in cultured human fibroblasts. Amino Acids 2023; 55:1679-1685. [PMID: 37768394 PMCID: PMC10689548 DOI: 10.1007/s00726-023-03340-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023]
Abstract
In the human body, the skin is one of the organs most affected by the aging process. Nutritional approaches aimed to counteract the age-induced decline of extracellular matrix (ECM) deposition could be a valuable tool to decrease the degenerative processes underlying skin aging. Here, we investigated the ability of a six-amino acid plus hyaluronic acid (6AAH) formulation enriched with tricarboxylic acid (TCA) intermediates to stimulate ECM gene expression. To this aim, human BJ fibroblasts were treated with 6AAH alone or plus succinate or malate alone or succinate plus malate (6AAHSM), and mRNA levels of several ECM markers were evaluated. 6AAHSM increased the expression of all the ECM markers significantly above 6AAH alone or plus only succinate or malate. Furthermore, in an in vitro oxidative damage model, 6AAHSM blunted the hydrogen peroxide-induced decline in ECM gene expression. Our data suggest that feeding cells with 6AAH enriched with TCAs could efficiently be employed as a non-pharmacological approach for counteracting skin aging.
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Affiliation(s)
- Maurizio Ragni
- Center for Study and Research On Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129, Milan, Italy.
| | - Luca Canciani
- Center for Study and Research On Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129, Milan, Italy
| | - Letizia Spataro
- Center for Study and Research On Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129, Milan, Italy
| | - Chiara Ruocco
- Center for Study and Research On Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129, Milan, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, University of Brescia, Viale Europa, 11, 25123, Brescia, Italy
| | - Enzo Nisoli
- Center for Study and Research On Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129, Milan, Italy
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Ruocco C, Malavazos AE, Ragni M, Carruba MO, Valerio A, Iacobellis G, Nisoli E. Amino acids contribute to adaptive thermogenesis. New insights into the mechanisms of action of recent drugs for metabolic disorders are emerging. Pharmacol Res 2023; 195:106892. [PMID: 37619907 DOI: 10.1016/j.phrs.2023.106892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 07/28/2023] [Accepted: 08/17/2023] [Indexed: 08/26/2023]
Abstract
Adaptive thermogenesis is the heat production by muscle contractions (shivering thermogenesis) or brown adipose tissue (BAT) and beige fat (non-shivering thermogenesis) in response to external stimuli, including cold exposure. BAT and beige fat communicate with peripheral organs and the brain through a variegate secretory and absorption processes - controlling adipokines, microRNAs, extracellular vesicles, and metabolites - and have received much attention as potential therapeutic targets for managing obesity-related disorders. The sympathetic nervous system and norepinephrine-releasing adipose tissue macrophages (ATM) activate uncoupling protein 1 (UCP1), expressed explicitly in brown and beige adipocytes, dissolving the electrochemical gradient and uncoupling tricarboxylic acid cycle and the electron transport chain from ATP production. Mounting evidence has attracted attention to the multiple effects of dietary and endogenously synthesised amino acids in BAT thermogenesis and metabolic phenotype in animals and humans. However, the mechanisms implicated in these processes have yet to be conclusively characterized. In the present review article, we aim to define the principal investigation areas in this context, including intestinal microbiota constitution, adipose autophagy modulation, and secretome and metabolic fluxes control, which lead to increased brown/beige thermogenesis. Finally, also based on our recent epicardial adipose tissue results, we summarise the evidence supporting the notion that the new dual and triple agonists of glucagon-like peptide-1 (GLP-1), glucose-dependent insulinotropic polypeptide (GIP), and glucagon (GCG) receptor - with never before seen weight loss and insulin-sensitizing efficacy - promote thermogenic-like amino acid profiles in BAT with robust heat production and likely trigger sympathetic activation and adaptive thermogenesis by controlling amino acid metabolism and ATM expansion in BAT and beige fat.
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Affiliation(s)
- Chiara Ruocco
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, via Vanvitelli, 32, 20129 Milan, Italy
| | - Alexis Elias Malavazos
- Endocrinology Unit, Clinical Nutrition and Cardiovascular Prevention Service, IRCCS Policlinico San Donato, Piazza Edmondo Malan, 2, San Donato Milanese, 20097 Milan, Italy; Department of Biomedical, Surgical and Dental Sciences, University of Milan, via della Commenda, 10, 20122 Milan, Italy
| | - Maurizio Ragni
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, via Vanvitelli, 32, 20129 Milan, Italy
| | - Michele O Carruba
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, via Vanvitelli, 32, 20129 Milan, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, University of Brescia, viale Europa, 11, 25123 Brescia, Italy
| | - Gianluca Iacobellis
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Miami, 1400 NW 12th Ave, Miami, FL, USA
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, via Vanvitelli, 32, 20129 Milan, Italy.
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Brunani A, Cancello R, Gobbi M, Lucchetti E, Di Guglielmo G, Maestrini S, Cattaldo S, Piterà P, Ruocco C, Milesi A, Valerio A, Capodaglio P, Nisoli E. Comparison of Protein- or Amino Acid-Based Supplements in the Rehabilitation of Men with Severe Obesity: A Randomized Controlled Pilot Study. J Clin Med 2023; 12:4257. [PMID: 37445292 PMCID: PMC10342837 DOI: 10.3390/jcm12134257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 06/18/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND Weight loss is associated with a reduction in all body compartments, including muscle mass (MM), and this effect produces a decrease in function and muscle strength. Our objective was to assess the impact of protein or amino acid supplements on MM loss in middle-aged men (age < 65 years) with severe obesity (BMI > 35 kg/m2) during weight loss. MATERIALS AND METHODS We conducted a single-site randomized controlled trial (Clinicaltrials.gov NCT05143398) with 40 in-patient male subjects with severe obesity. Participants underwent an intervention program consisting of a low-calorie balanced diet and structured physical activity. They were randomly assigned to 4-week treatment groups: (1) control (CTR, N = 10), (2) protein (P, N = 10), (3) branched-chain amino acid (BCAA, N = 10), and (4) essential amino acid mixture with tricarboxylic acid cycle intermediates (PD-E07, N = 10) supplementation. RESULTS Following 4 weeks of intervention, all groups showed similar reductions in body weight compared to baseline. When examining the delta values, a notable increase in muscle mass (MM) was observed in the PD-E07 intervention group [MM (kg): 2.84 ± 3.57; MM (%): 3.63 ± 3.14], in contrast to the CTR group [MM (kg): -2.46 ± 3.04; MM (%): -0.47 ± 2.28], with a statistical significance of p = 0.045 and p = 0.023, respectively. However, the MM values for the P group [MM (kg): -2.75 ± 5.98, p = 0.734; MM (%): -0.44 ± 4.02, p = 0.990] and the BCAA group [MM (kg): -1 ± 3.3, p = 0.734; MM (%): 0.34 ± 2.85, p = 0.956] did not exhibit a statistically significant difference when compared to the CTR group. CONCLUSIONS Amino acid-based supplements may effectively mitigate the loss of MM typically observed during weight reduction. Further validation through large-scale studies is necessary.
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Affiliation(s)
- Amelia Brunani
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
| | - Raffaella Cancello
- Obesity Unit, Department of Endocrine and Metabolic Diseases, Laboratory of Nutrition and Obesity Research, IRCCS Istituto Auxologico Italiano, 20100 Milan, Italy;
| | - Michele Gobbi
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
| | - Elisa Lucchetti
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
| | - Giulia Di Guglielmo
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
| | - Sabrina Maestrini
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
| | - Stefania Cattaldo
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
| | - Paolo Piterà
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
| | - Chiara Ruocco
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, 20100 Milan, Italy; (C.R.)
| | - Alessandra Milesi
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, University of Brescia, 25121 Brescia, Italy
| | - Paolo Capodaglio
- IRCCS, Istituto Auxologico Italiano, Ospedale San Giuseppe, Piancavallo, 28921 Verbania, Italy; (M.G.); (E.L.); (G.D.G.); (S.M.); (S.C.); (P.P.); (A.M.)
- Department of Surgical Sciences, Physical and Rehabilitation Medicine, University of Torino, 10121 Torino, Italy
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, 20100 Milan, Italy; (C.R.)
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Ragni M, Fenaroli F, Ruocco C, Segala A, D’Antona G, Nisoli E, Valerio A. A balanced formula of essential amino acids promotes brain mitochondrial biogenesis and protects neurons from ischemic insult. Front Neurosci 2023; 17:1197208. [PMID: 37397466 PMCID: PMC10308218 DOI: 10.3389/fnins.2023.1197208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/30/2023] [Indexed: 07/04/2023] Open
Abstract
Mitochondrial dysfunction plays a key role in the aging process, and aging is a strong risk factor for neurodegenerative diseases or brain injury characterized by impairment of mitochondrial function. Among these, ischemic stroke is one of the leading causes of death and permanent disability worldwide. Pharmacological approaches for its prevention and therapy are limited. Although non-pharmacological interventions such as physical exercise, which promotes brain mitochondrial biogenesis, have been shown to exert preventive effects against ischemic stroke, regular feasibility is complex in older people, and nutraceutical strategies could be valuable alternatives. We show here that dietary supplementation with a balanced essential amino acid mixture (BCAAem) increased mitochondrial biogenesis and the endogenous antioxidant response in the hippocampus of middle-aged mice to an extent comparable to those elicited by treadmill exercise training, suggesting BCAAem as an effective exercise mimetic on brain mitochondrial health and disease prevention. In vitro BCAAem treatment directly exerted mitochondrial biogenic effects and induced antioxidant enzyme expression in primary mouse cortical neurons. Further, exposure to BCAAem protected cortical neurons from the ischemic damage induced by an in vitro model of cerebral ischemia (oxygen-glucose deprivation, OGD). BCAAem-mediated protection against OGD was abolished in the presence of rapamycin, Torin-1, or L-NAME, indicating the requirement of both mTOR and eNOS signaling pathways in the BCAAem effects. We propose BCAAem supplementation as an alternative to physical exercise to prevent brain mitochondrial derangements leading to neurodegeneration and as a nutraceutical intervention aiding recovery after cerebral ischemia in conjunction with conventional drugs.
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Affiliation(s)
- Maurizio Ragni
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Francesca Fenaroli
- Department of Molecular and Translational Medicine, Brescia University, Brescia, Italy
| | - Chiara Ruocco
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Agnese Segala
- Department of Molecular and Translational Medicine, Brescia University, Brescia, Italy
| | - Giuseppe D’Antona
- Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Pavia, Italy
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, Brescia University, Brescia, Italy
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Carruba MO, Ragni M, Ruocco C, Aliverti S, Silano M, Amico A, Vaccaro CM, Marangoni F, Valerio A, Poli A, Nisoli E. Role of Portion Size in the Context of a Healthy, Balanced Diet: A Case Study of European Countries. Int J Environ Res Public Health 2023; 20:5230. [PMID: 36982138 PMCID: PMC10049364 DOI: 10.3390/ijerph20065230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/10/2023] [Accepted: 03/15/2023] [Indexed: 06/18/2023]
Abstract
Over the past decades, a generalised increase in food portion sizes has probably contributed to the growing global obesity epidemic. Increasing awareness of appropriate portion sizes could contribute to reversing this trend through better control of calorie intake. In this study, a comparison of standard portion sizes in European countries for various food categories shows a wide variability of their importance for food, nutrient, and energy consumption according to government and institutional websites. On the other hand, the overall averages appear to be largely in line with the values indicated by the Italian Society of Human Nutrition, which is the most comprehensive and detailed document among those evaluated. The exceptions are milk and yoghurt, for which the reference portions in Europe are generally higher, and vegetables and legumes, for which portions are smaller than those reported in the Italian document. Moreover, the portion sizes of staple foods (e.g., pasta and potatoes) vary according to different food traditions. It is reasonable to consider that the creation of harmonised standard reference portions common to the European countries, based on international guidelines and scientific evidence, would significantly contribute to consumers' nutritional education and ability to make informed choices for a healthy diet.
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Affiliation(s)
- Michele O. Carruba
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129 Milan, Italy; (M.O.C.)
| | - Maurizio Ragni
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129 Milan, Italy; (M.O.C.)
| | - Chiara Ruocco
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129 Milan, Italy; (M.O.C.)
| | - Sofia Aliverti
- Nutrition Foundation of Italy, Viale Tunisia, 38, 20124 Milan, Italy
| | - Marco Silano
- Department of Food Safety, Nutrition and Veterinary Public Health, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy
| | - Andrea Amico
- Health and Welfare Unit, Censis Foundation, Piazza di Novella, 2, 00199 Rome, Italy
| | - Concetta M. Vaccaro
- Health and Welfare Unit, Censis Foundation, Piazza di Novella, 2, 00199 Rome, Italy
| | - Franca Marangoni
- Nutrition Foundation of Italy, Viale Tunisia, 38, 20124 Milan, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, Brescia University, Viale Europa, 11, 25123 Brescia, Italy
| | - Andrea Poli
- Nutrition Foundation of Italy, Viale Tunisia, 38, 20124 Milan, Italy
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129 Milan, Italy; (M.O.C.)
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Malavazos AE, Iacobellis G, Dozio E, Basilico S, Di Vincenzo A, Dubini C, Menicanti L, Vianello E, Meregalli C, Ruocco C, Ragni M, Secchi F, Spagnolo P, Castelvecchio S, Morricone L, Buscemi S, Giordano A, Goldberger JJ, Carruba M, Cinti S, Corsi Romanelli MM, Nisoli E. Human Epicardial Adipose Tissue Expresses Glucose-dependent Insulinotropic Polypeptide, Glucagon and Glucagon-Like Peptide 1 Receptors as Potential Targets of Pleiotropic Therapies. Eur J Prev Cardiol 2023:7044713. [PMID: 36799940 DOI: 10.1093/eurjpc/zwad050] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/06/2023] [Accepted: 02/15/2023] [Indexed: 02/18/2023]
Abstract
BACKGROUND Human Epicardial Adipose Tissue (EAT) plays a crucial role in the development and progression of coronary artery disease, atrial fibrillation and heart failure. Microscopically, EAT is composed of adipocytes, nerve tissues, inflammatory, stromovascular and immune cells. EAT is a white adipose tissue, albeit it also has brown-fat like or beige fat features. No muscle fascia divides EAT and myocardium; this allows a direct interaction and cross talk between the epicardial fat and the myocardium. Thus, it might be a therapeutic target for pharmaceutical compounds acting on G-Protein-Coupled Receptors, such as those for Glucose-dependent Insulinotropic Polypeptide (GIP), Glucagon (GCG) and Glucagon-Like Peptide-1 (GLP-1), whose selective stimulation with innovative drugs has demonstrated beneficial cardiovascular effects. The precise mechanism of these novel drugs and their tissue and cellular target(s) need to be better understood. AIM We evaluate whether human EAT expresses GIP, GCG and GLP-1 receptors and whether their presence is related to EAT transcriptome. We also investigated protein expression and cell type localization specifically for GIPR and GCGR. METHODS EAT samples were collected from 33 patients affected by cardiovascular diseases undergoing open heart surgery (90.9% males, age 67.2±10.5 years mean ± SD). Microarray and immunohistochemistry analysis were performed. RESULTS Microarray analysis showed that GIPR and GCGR messenger Ribonucleic Acids (mRNAs) are expressed in EAT, beyond confirming the previously found GLP-1(3776±1377 arbitrary unit (A.U.), 17.77±14.91 A.U., and 3.41±2.27 A.U., respectively). The immunohistochemical analysis consistently indicates that GIPR and GCGR are expressed in EAT, mainly in macrophages, isolated and in crown-like structures. In contrast, only some mature adipocytes of different sizes showed cytoplasmic immunostaining, similar to endothelial cells and pericytes in the capillaries and pre-capillary vascular structures. Notably, EAT GIPR is statistically associated with the low expression of genes involved in Free Fatty Acid (FFA) oxidation and transport and those promoting FFA biosynthesis and adipogenesis (p<0.01). EAT GCGR, in turn, is related to genes involved in FFA transport, mitochondrial fatty acid oxidation, and white-to-brown adipocyte differentiation, in addition to genes involved in the reduction of fatty acid biosynthesis and adipogenesis (p<0.01). CONCLUSIONS Having reported the expression of the GLP-1 receptor previously, here, we showed that GIPR and GCGR similarly present at mRNA and protein levels in human EAT, particularly in macrophages and partially adipocytes, suggesting these G-protein-coupled receptors as pharmacological targets on the ongoing innovative drugs, which seem cardiometabolically healthy well beyond their effects on glucose and body weight..
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Affiliation(s)
- Alexis Elias Malavazos
- Endocrinology Unit, Clinical Nutrition and Cardiovascular Prevention Service, IRCCS Policlinico San Donato, San Donato Milanese, Italy.,Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, Milan, Italy
| | - Gianluca Iacobellis
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Miami, FL, USA
| | - Elena Dozio
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - Sara Basilico
- Endocrinology Unit, Clinical Nutrition and Cardiovascular Prevention Service, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Angelica Di Vincenzo
- Department of Experimental and Clinical Medicine, Center of Obesity, Università Politecnica delle Marche, Ancona, Italy
| | - Carola Dubini
- Endocrinology Unit, Clinical Nutrition and Cardiovascular Prevention Service, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Lorenzo Menicanti
- Cardiac Surgery Department, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Elena Vianello
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy
| | - Chiara Meregalli
- Endocrinology Unit, Clinical Nutrition and Cardiovascular Prevention Service, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Chiara Ruocco
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, Università degli Studi di Milano, Milan, Italy
| | - Maurizio Ragni
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, Università degli Studi di Milano, Milan, Italy
| | - Francesco Secchi
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.,Unit of Radiology, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Pietro Spagnolo
- Unit of Radiology, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | | | - Lelio Morricone
- Endocrinology Unit, Clinical Nutrition and Cardiovascular Prevention Service, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Silvio Buscemi
- Unit of Clinical Nutrition, Policlinico University Hospital, Palermo, Italy.,Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties Università di Palermo, Palermo, Italy
| | - Antonio Giordano
- Department of Experimental and Clinical Medicine, Center of Obesity, Università Politecnica delle Marche, Ancona, Italy
| | | | - Michele Carruba
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, Università degli Studi di Milano, Milan, Italy
| | - Saverio Cinti
- Department of Experimental and Clinical Medicine, Center of Obesity, Università Politecnica delle Marche, Ancona, Italy
| | - Massimiliano Marco Corsi Romanelli
- Department of Biomedical Sciences for Health, Università degli Studi di Milano, Milan, Italy.,Service of Laboratory Medicine1-Clinical Pathology, IRCCS Policlinico San Donato, San Donato Milanese, Italy
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, Università degli Studi di Milano, Milan, Italy
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9
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Dalle Grave R, Calugi S, Ruocco C, Chimini M, Segala A, Ragni M, Carruba M, Valerio A, Nisoli E. Efficacy and tolerability of a specific blend of amino acids in patients with anorexia nervosa treated in a hospital setting: study protocol for a randomized controlled trial. Trials 2023; 24:104. [PMID: 36759873 PMCID: PMC9912576 DOI: 10.1186/s13063-023-07120-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 01/28/2023] [Indexed: 02/11/2023] Open
Abstract
BACKGROUND Specific blends of essential amino acids (EAA) containing a high percentage of branched-chain amino acids preserves mitochondrial metabolism and higher physical resistance in elderly mice, increasing their survival and improving physical performance and cognitive functions in malnourished elderly patients. However, no study has been yet done on patients with anorexia nervosa (AN) who regain weight with specialized intensive treatment. The present study aims to evaluate the efficacy of supplementation with EAA on the change in lean body mass (LBM) and other physical and psychological outcomes in patients with AN who are undergoing specialist treatment for eating disorders. METHODS This is a 13-week randomized, double-blind, placebo-controlled study. Patients will be randomized to either a mixture of a complex blend of EAA and intermediates of the tricarboxylic acid (TCA) cycle (citrate, malate, succinate) supplementation (or placebo) upon admission at the intensive residential and day-hospital treatment for eating disorders. Ninety-two participants with AN aged 16-50 years will be recruited from a specialized intensive treatment of eating disorders. Double-blind assessment will be conducted at baseline (T0) and the end of the 13 weeks of treatment (T1). The study's primary aim is to evaluate the efficacy of supplementation with EAA and TCA intermediates on the change in lean body mass (LBM) with weight restoration in patients with AN who are undergoing specialist treatment for eating disorders. The secondary aims of the study are to assess the effect of dietary supplementation on physical fitness, weight restoration, modification of AN and general psychopathology, and psychosocial impairment. DISCUSSION The study's results will inform researchers and clinicians on whether supplementing a mixture of EAA and TCA cycle intermediates will improve the increase of LBM and other important physical and psychological outcomes in patients with AN who regain weight with specialized intensive treatment. TRIAL REGISTRATION NCT, NCT05290285. Registered on 22 March 2022.
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Affiliation(s)
- Riccardo Dalle Grave
- Department of Eating and Weight Disorders, Villa Garda Hospital, Via Monte Baldo, 89, Garda, 37016, Verona, Italy.
| | - Simona Calugi
- grid.416990.30000 0004 1787 1136Department of Eating and Weight Disorders, Villa Garda Hospital, Via Monte Baldo, 89, Garda, 37016 Verona, Italy
| | - Chiara Ruocco
- grid.4708.b0000 0004 1757 2822Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129 Milan, Italy
| | - Mirko Chimini
- grid.416990.30000 0004 1787 1136Department of Eating and Weight Disorders, Villa Garda Hospital, Via Monte Baldo, 89, Garda, 37016 Verona, Italy
| | - Agnese Segala
- grid.7637.50000000417571846Department of Molecular and Translational Medicine, Brescia University, Viale Europa 11, 25123 Brescia, Italy
| | - Maurizio Ragni
- grid.4708.b0000 0004 1757 2822Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129 Milan, Italy
| | - Michele Carruba
- grid.4708.b0000 0004 1757 2822Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129 Milan, Italy
| | - Alessandra Valerio
- grid.7637.50000000417571846Department of Molecular and Translational Medicine, Brescia University, Viale Europa 11, 25123 Brescia, Italy
| | - Enzo Nisoli
- grid.4708.b0000 0004 1757 2822Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Via Vanvitelli, 32, 20129 Milan, Italy
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10
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Ragni M, Greco CM, Felicetta A, Ren SV, Kunderfranco P, Ruocco C, Carullo P, Larcher V, Tedesco L, Severi I, Giordano A, Cinti S, Valerio A, Sun H, Wang Y, Gao C, Condorelli G, Nisoli E. Dietary essential amino acids for the treatment of heart failure with reduced ejection fraction. Cardiovasc Res 2023; 119:982-997. [PMID: 36626303 PMCID: PMC10153641 DOI: 10.1093/cvr/cvad005] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 11/05/2022] [Accepted: 11/11/2022] [Indexed: 01/11/2023] Open
Abstract
AIMS Heart failure with reduced ejection fraction (HFrEF) is a leading cause of mortality worldwide, requiring novel therapeutic and lifestyle interventions. Metabolic alterations and energy production deficit are hallmarks and thereby promising therapeutic targets for this complex clinical syndrome. We aim to study the molecular mechanisms and effects on cardiac function in rodents with HFrEF of a designer diet in which free essential amino acids - in specifically designed percentages - substituted for protein. METHODS AND RESULTS Wild-type mice were subjected to transverse aortic constriction (TAC) to induce left ventricle (LV) pressure overload or sham surgery. Whole body glucose homeostasis was studied with glucose tolerance test, while myocardial dysfunction and fibrosis were measured with echocardiogram and histological analysis. Mitochondrial bioenergetics and morphology were investigated with oxygen consumption rate measurement and electron microscopy evaluation. Circulating and cardiac non-targeted metabolite profiles were analyzed by ultrahigh performance liquid chromatography-tandem mass spectroscopy, while RNA sequencing was used to identify signalling pathways mainly affected. The amino acid-substituted diet shows remarkable preventive and therapeutic effects. This dietary approach corrects the whole-body glucose metabolism and restores the unbalanced metabolic substrate usage - by improving mitochondrial fuel oxidation - in the failing heart. In particular, biochemical, molecular, and genetic approaches suggest that renormalization of branched-chain amino acid oxidation in cardiac tissue, which is suppressed in HFrEF, plays a relevant role. Beyond the changes of systemic metabolism, cell-autonomous processes may explain at least in part the diet's cardioprotective impact. CONCLUSION Collectively, these results suggest that manipulation of dietary amino acids, and especially essential amino acids, is a potential adjuvant therapeutic strategy to treat systolic dysfunction and HFrEF in humans.
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Affiliation(s)
- Maurizio Ragni
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, 20129, Italy
| | - Carolina Magdalen Greco
- Department of Cardiovascular Medicine, Humanitas Research Hospital, Rozzano, 20089, Italy.,Humanitas University, Rozzano, 20089, Italy
| | - Arianna Felicetta
- Department of Cardiovascular Medicine, Humanitas Research Hospital, Rozzano, 20089, Italy
| | - Shuxun Vincent Ren
- Departments of Anesthesiology, Medicine and Physiology, David Geffen School of Medicine at University of California, Los Angeles, 90095 CA, United States
| | - Paolo Kunderfranco
- Department of Cardiovascular Medicine, Humanitas Research Hospital, Rozzano, 20089, Italy
| | - Chiara Ruocco
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, 20129, Italy
| | - Pierluigi Carullo
- Department of Cardiovascular Medicine, Humanitas Research Hospital, Rozzano, 20089, Italy.,Institute of Genetics and Biomedical Research, National Research Council of Italy, Milan, 20090, Italy
| | - Veronica Larcher
- Department of Cardiovascular Medicine, Humanitas Research Hospital, Rozzano, 20089, Italy
| | - Laura Tedesco
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, 20129, Italy
| | - Ilenia Severi
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, Ancona, 60126, Italy
| | - Antonio Giordano
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, Ancona, 60126, Italy
| | - Saverio Cinti
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, Ancona, 60126, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, 25123, Italy
| | - Haipeng Sun
- Departments of Anesthesiology, Medicine and Physiology, David Geffen School of Medicine at University of California, Los Angeles, 90095 CA, United States
| | - Yibin Wang
- Departments of Anesthesiology, Medicine and Physiology, David Geffen School of Medicine at University of California, Los Angeles, 90095 CA, United States
| | - Chen Gao
- Departments of Anesthesiology, Medicine and Physiology, David Geffen School of Medicine at University of California, Los Angeles, 90095 CA, United States
| | - Gianluigi Condorelli
- Department of Cardiovascular Medicine, Humanitas Research Hospital, Rozzano, 20089, Italy.,Humanitas University, Rozzano, 20089, Italy.,Departments of Anesthesiology, Medicine and Physiology, David Geffen School of Medicine at University of California, Los Angeles, 90095 CA, United States
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, 20129, Italy
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11
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Tedesco L, Rossi F, Ruocco C, Ragni M, Carruba MO, Valerio A, Nisoli E. A designer mixture of six amino acids promotes the extracellular matrix gene expression in cultured human fibroblasts. Biosci Biotechnol Biochem 2022; 86:1255-1261. [PMID: 35793559 DOI: 10.1093/bbb/zbac101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 06/20/2022] [Indexed: 11/14/2022]
Abstract
The deterioration of the skin is caused by dermatological disorders, environmental conditions, and ageing processes. One incisive strategy for supervising the skin ageing process is implementing healthy nutrition, preserving a balanced diet and a good supply of food supplements. Here, we compared H-Pro-Hyp-OH peptide, hydrolysed collagen, and an original mixture of six amino acids (we named 6aa)-including glycine, l-alanine, l-proline, l-valine, l-leucine, and l-lysine-effects on the production of extracellular matrix (ECM) components, particularly the elastin, fibronectin, collagen 1, and collagen 4. Treatment of BJ human skin fibroblasts with the 6aa mixture upregulated elastin, fibronectin, and collagen 1 gene expression, without affecting the expression of anti-reactive oxygen species enzymes. Moreover, the mTOR signaling pathway seems to be involved, at least in part. Collectively, these results suggest that the six amino acid mixture exerts beneficial effects in human skin fibroblasts.
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Affiliation(s)
- Laura Tedesco
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, via Vanvitelli, 32 - Milan, Italy
| | - Fabio Rossi
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, via Vanvitelli, 32 - Milan, Italy
| | - Chiara Ruocco
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, via Vanvitelli, 32 - Milan, Italy
| | - Maurizio Ragni
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, via Vanvitelli, 32 - Milan, Italy
| | - Michele O Carruba
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, via Vanvitelli, 32 - Milan, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, Brescia University, viale Europa, 11-25123 Brescia, Italy
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, via Vanvitelli, 32 - Milan, Italy
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12
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Ruocco C, Ragni M, Tedesco L, Segala A, Servili M, Riccardi G, Carruba MO, Valerio A, Nisoli E, Visioli F. Molecular and metabolic effects of extra-virgin olive oil on the cardiovascular gene signature in rodents. Nutr Metab Cardiovasc Dis 2022; 32:1571-1582. [PMID: 35461749 DOI: 10.1016/j.numecd.2022.03.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 03/21/2022] [Indexed: 11/17/2022]
Abstract
BACKGROUND AND AIMS Overweight and obesity are major risk factors for degenerative diseases, including cardiometabolic disorders and cancer. Research on fat and fatty acids' type is attracting less attention than that on carbohydrates. High adherence to a Mediterranean diet is associated with a better prognosis. One characteristic of the Mediterranean diet is extra-virgin olive oil (EVOO) as the foremost source of dietary fat. EVOO is different from other vegetable oils because it contains peculiar "minor" components, mainly phenolic in nature. Even though olive oil is highly caloric, unrestricted use of olive oil in the PREDIMED trial did not result in weight gain. We sought to study the effects of EVOO in an appropriate mouse model of increased body weight. Furthermore, we explored the biochemical and metabolomic responses to EVOO consumption. METHODS AND RESULTS C57BL/6N male mice were weight-matched and fed ad libitum with the following diets, for 16 weeks: 1) saturated fatty acid diet (SFA) or 2) extra-virgin olive oil diet (EVOO), a custom-prepared diet, isocaloric compared to SFA, in which 82% of fat was replaced by high (poly)phenol EVOO. We evaluated glucose homeostasis, serum biochemistry and plasma metabolomics, in addition to cardiac and hepatic gene profile, and mitochondrial respiration rate. CONCLUSION Replacing saturated fatty acids (e.g. lard) with EVOO translates into moderate yet beneficial cardiometabolic and hepatic effects. Future research will further clarify the mechanisms of action of EVOO (poly)phenols and their role in a balanced diet.
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Affiliation(s)
- Chiara Ruocco
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, 20129 Milan, Italy
| | - Maurizio Ragni
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, 20129 Milan, Italy
| | - Laura Tedesco
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, 20129 Milan, Italy
| | - Agnese Segala
- Department of Molecular and Translational Medicine, Brescia University, 25123 Brescia, Italy
| | - Maurizio Servili
- Department of Agricultural, Food and Environmental Sciences, University of Perugia, 06126 Perugia, Italy
| | - Gabriele Riccardi
- Department of Clinical Medicine and Surgery, Federico II University, Naples, Italy
| | - Michele O Carruba
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, 20129 Milan, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, Brescia University, 25123 Brescia, Italy
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, 20129 Milan, Italy.
| | - Francesco Visioli
- Department of Molecular Medicine, University of Padua, Padua, Italy; IMDEA-Food, CEI UAM+CSIC, Madrid, Spain
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13
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Carruba MO, Caretto A, De Lorenzo A, Fatati G, Ghiselli A, Lucchin L, Maffeis C, Malavazos A, Malfi G, Riva E, Ruocco C, Santini F, Silano M, Valerio A, Vania A, Nisoli E. Front-of-pack (FOP) labelling systems to improve the quality of nutrition information to prevent obesity: NutrInform Battery vs Nutri-Score. Eat Weight Disord 2022; 27:1575-1584. [PMID: 34664216 PMCID: PMC9123065 DOI: 10.1007/s40519-021-01316-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 10/01/2021] [Indexed: 12/31/2022] Open
Abstract
Many systems for classifying food products to adequately predict lower all-cause morbidity and mortality have been proposed as front-of-pack (FOP) nutritional labels. Although the efforts and advances that these systems represent for public health must be appreciated, as scientists involved in nutrition research and belonging to diverse Italian nutrition scientific societies, we would like to draw stakeholders' attention to the fact that some FOP labels risk being not correctly informative to consumers' awareness of nutritional food quality. The European Commission has explicitly called for such a nutrition information system to be part of the European "strategy on nutrition, overweight and obesity-related issues" to "facilitate consumer understanding of the contribution or importance of the food to the energy and nutrient content of a diet". Some European countries have adopted the popular French proposal Nutri-Score. However, many critical limits and inadequacies have been identified in this system. As an alternative, we endorse a new enriched informative label-the NutrInform Battery-promoted by the Italian Ministry of Health and deeply studied by the Center for Study and Research on Obesity, Milan University. Therefore, the present position paper limits comparing these two FOP nutritional labels, focusing on the evidence suggesting that the NutrInform Battery can help consumers better than the Nutri-Score system to understand nutritional information, potentially improving dietary choices. LEVEL OF EVIDENCE: II. Evidence was obtained from well-designed controlled trials without randomization.
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Affiliation(s)
- Michele O Carruba
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Milan, Italy.
| | - Antonio Caretto
- Endocrinology, Metabolic Diseases and Clinical Nutrition, Hospital of Brindisi, Brindisi, Italy
| | - Antonino De Lorenzo
- Division of Clinical Nutrition and Nutrigenomic, Department of Biomedicine and Prevention, University of Tor Vergata, Rome, Italy
| | | | | | | | - Claudio Maffeis
- Department of Surgery, Dentistry, Paediatrics and Gynecology, University and Azienda Ospedaliera Universitaria Integrata of Verona, Verona, Italy
| | - Alexis Malavazos
- Endocrinology Unit, Clinical Nutrition and Cardiovascular Prevention Service, IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy.,Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy
| | - Giuseppe Malfi
- Department of Dietetics and Clinical Nutrition, San Giovanni Battista Hospital, Turin, Italy
| | - Enrica Riva
- Italian Society of Paediatric Nutrition, Milan, Italy
| | - Chiara Ruocco
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Milan, Italy
| | - Ferruccio Santini
- Obesity and Lipodystrophy Center, Endocrinology Unit, University Hospital of Pisa, Pisa, Italy
| | - Marco Silano
- Unità Operativa Alimentazione, Nutrizione e Salute, Dipartimento Sicurezza Alimentare, Nutrizione e Sanità Pubblica Veterinaria, Istituto Superiore di Sanità, Rome, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, Brescia University, Brescia, Italy
| | - Andrea Vania
- Department of Paediatrics and Paediatric Neuropsychiatry, La Sapienza" University of Rome, Rome, Italy
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Milan, Italy.
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14
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Tedesco L, Rossi F, Ruocco C, Ragni M, Carruba MO, Valerio A, Nisoli E. An original amino acid formula favours in vitro corneal epithelial wound healing by promoting Fn1, ITGB1, and PGC-1α expression. Exp Eye Res 2022; 219:109060. [PMID: 35390334 DOI: 10.1016/j.exer.2022.109060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/17/2022] [Accepted: 03/30/2022] [Indexed: 11/04/2022]
Abstract
Corneal disorders are frequent, involving most diabetic patients; among its manifestations, they include delayed wound healing. Since maintenance of mitochondrial homeostasis is fundamental for the cell, stimulation of mitochondrial biogenesis represents a unique therapeutic tool for preventing and treating disorders with a deficit in energy metabolism. We have recently demonstrated that a branched-chain amino acid (BCAA)-enriched mixture (BCAAem) supported mitochondrial biogenesis in cardiac and skeletal muscle, reduced liver damage caused by alcohol, and prevented the doxorubicin-dependent mitochondrial damage in cardiomyocytes. The present study aimed to investigate a new amino acid mixture, named six amino acids (6AA), to promote corneal epithelial wound healing by regulating mitochondrial biogenesis. A murine epithelium cell line (TKE2) exposed to this mixture showed increased mitochondrial biogenesis markers, fibronectin 1 (Fn1) and integrin beta 1 (ITGB1) involved in extracellular matrix synthesis and cell migration. Most importantly, the 6AA mixture completely restored the wound in scratch assays, confirming the potential of this new formula in eye disorders like keratopathy. Moreover, our results demonstrate for the first time that peroxisome proliferator-receptor γ coactivator 1 α (PGC-1α) is expressed in TKE2 cells, which controls mitochondrial function and corneal repair process. These results could be relevant for the treatment mainly focused on corneal re-epithelialisation.
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Affiliation(s)
- Laura Tedesco
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, via Vanvitelli, 32 - 20129, Milan, Italy.
| | - Fabio Rossi
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, via Vanvitelli, 32 - 20129, Milan, Italy
| | - Chiara Ruocco
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, via Vanvitelli, 32 - 20129, Milan, Italy
| | - Maurizio Ragni
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, via Vanvitelli, 32 - 20129, Milan, Italy
| | - Michele O Carruba
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, via Vanvitelli, 32 - 20129, Milan, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, Brescia University, Brescia, Italy
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, via Vanvitelli, 32 - 20129, Milan, Italy
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15
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Freo U, Ruocco C, Valerio A, Scagnol I, Nisoli E. Paracetamol: A Review of Guideline Recommendations. J Clin Med 2021; 10:jcm10153420. [PMID: 34362203 PMCID: PMC8347233 DOI: 10.3390/jcm10153420] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 07/11/2021] [Accepted: 07/28/2021] [Indexed: 02/06/2023] Open
Abstract
Musculoskeletal pain conditions are age-related, leading contributors to chronic pain and pain-related disability, which are expected to rise with the rapid global population aging. Current medical treatments provide only partial relief. Furthermore, non-steroidal anti-inflammatory drugs (NSAIDs) and opioids are effective in young and otherwise healthy individuals but are often contraindicated in elderly and frail patients. As a result of its favorable safety and tolerability record, paracetamol has long been the most common drug for treating pain. Strikingly, recent reports questioned its therapeutic value and safety. This review aims to present guideline recommendations. Paracetamol has been assessed in different conditions and demonstrated therapeutic efficacy on both acute and chronic pain. It is active as a single agent and is additive or synergistic with NSAIDs and opioids, improving their efficacy and safety. However, a lack of significant efficacy and hepatic toxicity have also been reported. Fast dissolving formulations of paracetamol provide superior and more extended pain relief that is similar to intravenous paracetamol. A dose reduction is recommended in patients with liver disease or malnourished. Genotyping may improve efficacy and safety. Within the current trend toward the minimization of opioid analgesia, it is consistently included in multimodal, non-opioid, or opioid-sparing therapies. Paracetamol is being recommended by guidelines as a first or second-line drug for acute pain and chronic pain, especially for patients with limited therapeutic options and for the elderly.
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Affiliation(s)
- Ulderico Freo
- Anesthesiology and Intensive Care, Department of Medicine—DIMED, University of Padua, 35122 Padua, Italy;
- Correspondence: ; Tel.: +39-049-821-3090
| | - Chiara Ruocco
- Center for the Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, 20129 Milan, Italy; (C.R.); (E.N.)
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, University of Brescia, 25100 Brescia, Italy;
| | - Irene Scagnol
- Anesthesiology and Intensive Care, Department of Medicine—DIMED, University of Padua, 35122 Padua, Italy;
| | - Enzo Nisoli
- Center for the Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, 20129 Milan, Italy; (C.R.); (E.N.)
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16
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Abstract
PURPOSE OF REVIEW Both restriction and supplementation of specific amino acids or branched-chain amino acids (BCAAs) are described to improve metabolic homeostasis, energy balance, and health span. This review will discuss the recent findings of the role of amino acid supplements in the regulation of mitochondrial health. RECENT FINDINGS A mixture of essential amino acids (EAAs), BCAA enriched mixture, was found to extend healthy life span in elderly mice and prevent multiple diseases associated with an energy deficit, similarly to caloric restriction or fasting-mimicking diets. A growing body of evidence highlights mitochondria as the central target of this supplement: it promotes mitochondrial biogenesis and the activation of antioxidant defence systems in different physiological (e.g., exercise or ageing) or pathological conditions (e.g., sarcopenia, muscular dystrophy, liver steatosis, or impaired cognition). Based on these results, new formulas have been created enriched with Krebs cycle substrates, behaving more efficiently than BCAA enriched mixture. SUMMARY EAA-BCAA balanced supplements might be valuable not only for healthy individuals undergoing to energy deficit (e.g., athletes) during strenuous exercise or training but also against diseases characterized by a dysregulated catabolic state or mitochondrial dysfunction, such as age-related disorders. The associated mechanistic processes should be identified as potential pharmacological targets.
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Affiliation(s)
- Chiara Ruocco
- Department of Biomedical Technology and Translational Medicine, Center for Study and Research on Obesity, University of Milan, Milan
| | - Agnese Segala
- Department of Molecular and Translational Medicine, Brescia University, Brescia, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, Brescia University, Brescia, Italy
| | - Enzo Nisoli
- Department of Biomedical Technology and Translational Medicine, Center for Study and Research on Obesity, University of Milan, Milan
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17
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Ruocco C, Ragni M, Rossi F, Carullo P, Ghini V, Piscitelli F, Cutignano A, Manzo E, Ioris RM, Bontems F, Tedesco L, Greco CM, Pino A, Severi I, Liu D, Ceddia RP, Ponzoni L, Tenori L, Rizzetto L, Scholz M, Tuohy K, Bifari F, Di Marzo V, Luchinat C, Carruba MO, Cinti S, Decimo I, Condorelli G, Coppari R, Collins S, Valerio A, Nisoli E. Manipulation of Dietary Amino Acids Prevents and Reverses Obesity in Mice Through Multiple Mechanisms That Modulate Energy Homeostasis. Diabetes 2020; 69:2324-2339. [PMID: 32778569 PMCID: PMC7576563 DOI: 10.2337/db20-0489] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 08/06/2020] [Indexed: 12/12/2022]
Abstract
Reduced activation of energy metabolism increases adiposity in humans and other mammals. Thus, exploring dietary and molecular mechanisms able to improve energy metabolism is of paramount medical importance because such mechanisms can be leveraged as a therapy for obesity and related disorders. Here, we show that a designer protein-deprived diet enriched in free essential amino acids can 1) promote the brown fat thermogenic program and fatty acid oxidation, 2) stimulate uncoupling protein 1 (UCP1)-independent respiration in subcutaneous white fat, 3) change the gut microbiota composition, and 4) prevent and reverse obesity and dysregulated glucose homeostasis in multiple mouse models, prolonging the healthy life span. These effects are independent of unbalanced amino acid ratio, energy consumption, and intestinal calorie absorption. A brown fat-specific activation of the mechanistic target of rapamycin complex 1 seems involved in the diet-induced beneficial effects, as also strengthened by in vitro experiments. Hence, our results suggest that brown and white fat may be targets of specific amino acids to control UCP1-dependent and -independent thermogenesis, thereby contributing to the improvement of metabolic health.
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Affiliation(s)
- Chiara Ruocco
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Milan, Italy
| | - Maurizio Ragni
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Milan, Italy
| | - Fabio Rossi
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Milan, Italy
| | - Pierluigi Carullo
- IRCCS Humanitas Clinical and Research Center, Rozzano, Italy
- Institute of Genetic and Biomedical Research, National Research Council, Rozzano, Italy
| | - Veronica Ghini
- Interuniversity Consortium for Magnetic Resonance, Sesto Fiorentino, Italy
| | - Fabiana Piscitelli
- Institute of Biomolecular Chemistry, National Research Council, Pozzuoli, Italy
| | - Adele Cutignano
- Institute of Biomolecular Chemistry, National Research Council, Pozzuoli, Italy
| | - Emiliano Manzo
- Institute of Biomolecular Chemistry, National Research Council, Pozzuoli, Italy
| | - Rafael Maciel Ioris
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, Switzerland
- Diabetes Center of the Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Franck Bontems
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, Switzerland
- Diabetes Center of the Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Laura Tedesco
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Milan, Italy
| | | | - Annachiara Pino
- Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Ilenia Severi
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, Center of Obesity, Ancona, Italy
| | - Dianxin Liu
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Ryan P Ceddia
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Luisa Ponzoni
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Milan, Italy
- Institute of Neuroscience, National Research Council, Milan, Italy
| | - Leonardo Tenori
- FiorGen Foundation, Sesto Fiorentino, Italy
- Center of Magnetic Resonance, University of Florence, Sesto Fiorentino, Italy
| | - Lisa Rizzetto
- Department of Food Quality and Nutrition, Research and Innovation Center, Edmund Mach Foundation, San Michele all'Adige, Italy
| | - Matthias Scholz
- Department of Food Quality and Nutrition, Research and Innovation Center, Edmund Mach Foundation, San Michele all'Adige, Italy
| | - Kieran Tuohy
- Department of Food Quality and Nutrition, Research and Innovation Center, Edmund Mach Foundation, San Michele all'Adige, Italy
| | - Francesco Bifari
- Laboratory of Cell Metabolism and Regenerative Medicine, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Vincenzo Di Marzo
- Canada Excellence Research Chair Microbiome-Endocannabinoidome Axis in Metabolic Health, Université Laval, Quebec City, Canada
- Joint International Research Unit for Chemical and Biochemical Research on the Microbiome and Its Impact on Metabolic Health and Nutrition, Institute of Biomolecular Chemistry, National Research Council, Pozzuoli, Italy and Université Laval, Quebec City, Canada
| | - Claudio Luchinat
- Interuniversity Consortium for Magnetic Resonance, Sesto Fiorentino, Italy
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Michele O Carruba
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Milan, Italy
| | - Saverio Cinti
- Department of Experimental and Clinical Medicine, Marche Polytechnic University, Center of Obesity, Ancona, Italy
| | - Ilaria Decimo
- Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Gianluigi Condorelli
- IRCCS Humanitas Clinical and Research Center, Rozzano, Italy
- Institute of Genetic and Biomedical Research, National Research Council, Rozzano, Italy
- Humanitas University, Rozzano, Italy
| | - Roberto Coppari
- Department of Cell Physiology and Metabolism, University of Geneva, Geneva, Switzerland
- Diabetes Center of the Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Sheila Collins
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, Brescia University, Brescia, Italy
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Biomedical Technology and Translational Medicine, University of Milan, Milan, Italy
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18
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Tedesco L, Rossi F, Ragni M, Ruocco C, Brunetti D, Carruba MO, Torrente Y, Valerio A, Nisoli E. A Special Amino-Acid Formula Tailored to Boosting Cell Respiration Prevents Mitochondrial Dysfunction and Oxidative Stress Caused by Doxorubicin in Mouse Cardiomyocytes. Nutrients 2020; 12:nu12020282. [PMID: 31973180 PMCID: PMC7071384 DOI: 10.3390/nu12020282] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 12/23/2019] [Accepted: 01/02/2020] [Indexed: 12/24/2022] Open
Abstract
Anthracycline anticancer drugs, such as doxorubicin (DOX), can induce cardiotoxicity supposed to be related to mitochondrial damage. We have recently demonstrated that a branched-chain amino acid (BCAA)-enriched mixture (BCAAem), supplemented with drinking water to middle-aged mice, was able to promote mitochondrial biogenesis in cardiac and skeletal muscle. To maximally favor and increase oxidative metabolism and mitochondrial function, here we tested a new original formula, composed of essential amino acids, tricarboxylic acid cycle precursors and co-factors (named α5), in HL-1 cardiomyocytes and mice treated with DOX. We measured mitochondrial biogenesis, oxidative stress, and BCAA catabolic pathway. Moreover, the molecular relevance of endothelial nitric oxide synthase (eNOS) and mechanistic/mammalian target of rapamycin complex 1 (mTORC1) was studied in both cardiac tissue and HL-1 cardiomyocytes. Finally, the role of Krüppel-like factor 15 (KLF15), a critical transcriptional regulator of BCAA oxidation and eNOS-mTORC1 signal, was investigated. Our results demonstrate that the α5 mixture prevents the DOX-dependent mitochondrial damage and oxidative stress better than the previous BCAAem, implying a KLF15/eNOS/mTORC1 signaling axis. These results could be relevant for the prevention of cardiotoxicity in the DOX-treated patients.
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Affiliation(s)
- Laura Tedesco
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milan, Italy
| | - Fabio Rossi
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milan, Italy
| | - Maurizio Ragni
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milan, Italy
| | - Chiara Ruocco
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milan, Italy
| | - Dario Brunetti
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milan, Italy
| | - Michele O. Carruba
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milan, Italy
| | - Yvan Torrente
- Department of Pathophysiology and Transplantation, University of Milan, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Centro Dino Ferrari, 20122 Milan, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, University of Brescia, 25121 Brescia, Italy
- Correspondence: (A.V.); (E.N.); Tel.: +39-030-3717504 (A.V.); +39-02-50316956 (E.N.); Fax: +39-030-3717529 (A.V.); +39-02-50317118 (E.N.)
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milan, Italy
- Correspondence: (A.V.); (E.N.); Tel.: +39-030-3717504 (A.V.); +39-02-50316956 (E.N.); Fax: +39-030-3717529 (A.V.); +39-02-50317118 (E.N.)
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19
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Bella P, Farini A, Banfi S, Parolini D, Tonna N, Meregalli M, Belicchi M, Erratico S, D'Ursi P, Bianco F, Legato M, Ruocco C, Sitzia C, Sangiorgi S, Villa C, D'Antona G, Milanesi L, Nisoli E, Mauri P, Torrente Y. Blockade of IGF2R improves muscle regeneration and ameliorates Duchenne muscular dystrophy. EMBO Mol Med 2020; 12:e11019. [PMID: 31793167 PMCID: PMC6949491 DOI: 10.15252/emmm.201911019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 10/29/2019] [Accepted: 10/30/2019] [Indexed: 12/17/2022] Open
Abstract
Duchenne muscular dystrophy (DMD) is a debilitating fatal X-linked muscle disorder. Recent findings indicate that IGFs play a central role in skeletal muscle regeneration and development. Among IGFs, insulinlike growth factor 2 (IGF2) is a key regulator of cell growth, survival, migration and differentiation. The type 2 IGF receptor (IGF2R) modulates circulating and tissue levels of IGF2 by targeting it to lysosomes for degradation. We found that IGF2R and the store-operated Ca2+ channel CD20 share a common hydrophobic binding motif that stabilizes their association. Silencing CD20 decreased myoblast differentiation, whereas blockade of IGF2R increased proliferation and differentiation in myoblasts via the calmodulin/calcineurin/NFAT pathway. Remarkably, anti-IGF2R induced CD20 phosphorylation, leading to the activation of sarcoplasmic/endoplasmic reticulum Ca2+ -ATPase (SERCA) and removal of intracellular Ca2+ . Interestingly, we found that IGF2R expression was increased in dystrophic skeletal muscle of human DMD patients and mdx mice. Blockade of IGF2R by neutralizing antibodies stimulated muscle regeneration, induced force recovery and normalized capillary architecture in dystrophic mdx mice representing an encouraging starting point for the development of new biological therapies for DMD.
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Affiliation(s)
- Pamela Bella
- Stem Cell LaboratoryDepartment of Pathophysiology and TransplantationUnit of NeurologyFondazione IRCCS Ca’ Granda Ospedale Maggiore PoliclinicoCentro Dino FerrariUniversitá degli Studi di MilanoMilanItaly
| | - Andrea Farini
- Stem Cell LaboratoryDepartment of Pathophysiology and TransplantationUnit of NeurologyFondazione IRCCS Ca’ Granda Ospedale Maggiore PoliclinicoCentro Dino FerrariUniversitá degli Studi di MilanoMilanItaly
| | - Stefania Banfi
- Hematology Department Fondazione IRCCSDepartment of Oncology and Hemato‐oncologyIstituto Nazionale dei TumoriUniversitá degli Studi di MilanoMilanItaly
| | | | | | - Mirella Meregalli
- Stem Cell LaboratoryDepartment of Pathophysiology and TransplantationUnit of NeurologyFondazione IRCCS Ca’ Granda Ospedale Maggiore PoliclinicoCentro Dino FerrariUniversitá degli Studi di MilanoMilanItaly
| | - Marzia Belicchi
- Stem Cell LaboratoryDepartment of Pathophysiology and TransplantationUnit of NeurologyFondazione IRCCS Ca’ Granda Ospedale Maggiore PoliclinicoCentro Dino FerrariUniversitá degli Studi di MilanoMilanItaly
| | | | - Pasqualina D'Ursi
- Institute of Technologies in BiomedicineNational Research Council (ITB‐CNR)MilanItaly
| | | | - Mariella Legato
- Stem Cell LaboratoryDepartment of Pathophysiology and TransplantationUnit of NeurologyFondazione IRCCS Ca’ Granda Ospedale Maggiore PoliclinicoCentro Dino FerrariUniversitá degli Studi di MilanoMilanItaly
| | - Chiara Ruocco
- Department of Medical Biotechnology and Translational MedicineCenter for Study and Research on ObesityMilan UniversityMilanItaly
| | - Clementina Sitzia
- UOC SMEL‐1Scuola di Specializzazione di Patologia Clinica e Biochimica ClinicaUniversità degli Studi di MilanoMilanItaly
| | - Simone Sangiorgi
- Neurosurgery UnitDepartment of SurgeryASST Lariana‐S. Anna HospitalComoItaly
| | - Chiara Villa
- Stem Cell LaboratoryDepartment of Pathophysiology and TransplantationUnit of NeurologyFondazione IRCCS Ca’ Granda Ospedale Maggiore PoliclinicoCentro Dino FerrariUniversitá degli Studi di MilanoMilanItaly
| | - Giuseppe D'Antona
- Department of Public Health, Experimental and Forensic MedicinePavia UniversityPaviaItaly
| | - Luciano Milanesi
- Institute of Technologies in BiomedicineNational Research Council (ITB‐CNR)MilanItaly
| | - Enzo Nisoli
- Department of Medical Biotechnology and Translational MedicineCenter for Study and Research on ObesityMilan UniversityMilanItaly
| | - PierLuigi Mauri
- Institute of Technologies in BiomedicineNational Research Council (ITB‐CNR)MilanItaly
| | - Yvan Torrente
- Stem Cell LaboratoryDepartment of Pathophysiology and TransplantationUnit of NeurologyFondazione IRCCS Ca’ Granda Ospedale Maggiore PoliclinicoCentro Dino FerrariUniversitá degli Studi di MilanoMilanItaly
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20
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Buondonno I, Sassi F, Carignano G, Dutto F, Ferreri C, Pili FG, Massaia M, Nisoli E, Ruocco C, Porrino P, Ravetta C, Riganti C, Isaia GC, D'Amelio P. From mitochondria to healthy aging: The role of branched-chain amino acids treatment: MATeR a randomized study. Clin Nutr 2019; 39:2080-2091. [PMID: 31672329 DOI: 10.1016/j.clnu.2019.10.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 07/17/2019] [Accepted: 10/07/2019] [Indexed: 12/16/2022]
Abstract
RATIONALE Malnutrition often affects elderly patients and significantly contributes to the reduction in healthy life expectancy, causing high morbidity and mortality. In particular, protein malnutrition is one of the determinants of frailty and sarcopenia in elderly people. METHODS To investigate the role of amino acid supplementation in senior patients we performed an open-label randomized trial and administered a particular branched-chain amino acid enriched mixture (BCAAem) or provided diet advice in 155 elderly malnourished patients. They were followed for 2 months, assessing cognitive performance by Mini Mental State Examination (MMSE), muscle mass measured by anthropometry, strength measure by hand grip and performance measured by the Timed Up and Go (TUG) test, the 30 s Chair Sit to Stand (30-s CST) test and the 4 m gait speed test. Moreover we measured oxidative stress in plasma and mitochondrial production of ATP and electron flux in peripheral blood mononuclear cells. RESULTS Both groups improved in nutritional status, general health and muscle mass, strength and performance; treatment with BCAAem supplementation was more effective than simple diet advice in increasing MMSE (1.2 increase versus 0.2, p = 0.0171), ATP production (0.43 increase versus -0.1, p = 0.0001), electron flux (0.50 increase versus 0.01, p < 0.0001) and in maintaining low oxidative stress. The amelioration of clinical parameters as MMSE, balance, four meter walking test were associated to increased mitochondrial function. CONCLUSIONS Overall, our findings show that sustaining nutritional support might be clinically relevant in increasing physical performance in elderly malnourished patients and that the use of specific BCAAem might ameliorate also cognitive performance thanks to an amelioration of mitochondria bioenergetics.
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Affiliation(s)
- Ilaria Buondonno
- Department of Medical Science, Gerontology and Bone Metabolic Diseases, University of Turin, Italy
| | - Francesca Sassi
- Department of Medical Science, Gerontology and Bone Metabolic Diseases, University of Turin, Italy
| | - Giulia Carignano
- Department of Medical Science, Gerontology and Bone Metabolic Diseases, University of Turin, Italy
| | - Francesca Dutto
- Department of Medical Science, Gerontology and Bone Metabolic Diseases, University of Turin, Italy
| | - Cinzia Ferreri
- Department of Medical Science, Gerontology and Bone Metabolic Diseases, University of Turin, Italy
| | - Fausto G Pili
- Department of Medical Science, Gerontology and Bone Metabolic Diseases, University of Turin, Italy
| | - Massimiliano Massaia
- Department of Medical Science, Gerontology and Bone Metabolic Diseases, University of Turin, Italy
| | - Enzo Nisoli
- Department of Medical Biotechnology and Translational Medicine, Centre for Study and Research on Obesity, University of Milan, Italy
| | - Chiara Ruocco
- Department of Medical Biotechnology and Translational Medicine, Centre for Study and Research on Obesity, University of Milan, Italy
| | - Paola Porrino
- Department of Medical Science, Gerontology and Bone Metabolic Diseases, University of Turin, Italy
| | - Claudia Ravetta
- Department of Medical Science, Gerontology and Bone Metabolic Diseases, University of Turin, Italy
| | | | - Giovanni C Isaia
- Department of Medical Science, Gerontology and Bone Metabolic Diseases, University of Turin, Italy
| | - Patrizia D'Amelio
- Department of Medical Science, Gerontology and Bone Metabolic Diseases, University of Turin, Italy.
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21
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Banfi S, D'Antona G, Ruocco C, Meregalli M, Belicchi M, Bella P, Erratico S, Donato E, Rossi F, Bifari F, Lonati C, Campaner S, Nisoli E, Torrente Y. Supplementation with a selective amino acid formula ameliorates muscular dystrophy in mdx mice. Sci Rep 2018; 8:14659. [PMID: 30279586 PMCID: PMC6168581 DOI: 10.1038/s41598-018-32613-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 09/10/2018] [Indexed: 11/19/2022] Open
Abstract
Duchenne muscular dystrophy (DMD) is one of the most common and severe forms of muscular dystrophy. Oxidative myofibre content, muscle vasculature architecture and exercise tolerance are impaired in DMD. Several studies have demonstrated that nutrient supplements ameliorate dystrophic features, thereby enhancing muscle performance. Here, we report that dietary supplementation with a specific branched-chain amino acid-enriched mixture (BCAAem) increased the abundance of oxidative muscle fibres associated with increased muscle endurance in dystrophic mdx mice. Amelioration of the fatigue index in BCAAem-treated mdx mice was caused by a cascade of events in the muscle tissue, which were promoted by endothelial nitric oxide synthase (eNOS) activation and vascular endothelial growth factor (VEGF) expression. VEGF induction led to recruitment of bone marrow (BM)-derived endothelial progenitors (EPs), which increased the capillary density of dystrophic skeletal muscle. Functionally, BCAAem mitigated the dystrophic phenotype of mdx mice without inducing dystrophin protein expression or replacing the dystrophin-associated glycoprotein (DAG) complex in the membrane, which is typically lost in DMD. BCAAem supplementation could be an effective adjuvant strategy in DMD treatment.
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Affiliation(s)
- Stefania Banfi
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Centro Dino Ferrari, 20122, Milan, Italy
| | - Giuseppe D'Antona
- Department of Public Health, Molecular and Forensic Medicine, and Sport Medicine Centre Voghera, University of Pavia, Pavia, 27100, Italy
| | - Chiara Ruocco
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, 20129, Italy
| | - Mirella Meregalli
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Centro Dino Ferrari, 20122, Milan, Italy
| | - Marzia Belicchi
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Centro Dino Ferrari, 20122, Milan, Italy
| | - Pamela Bella
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Centro Dino Ferrari, 20122, Milan, Italy
| | | | - Elisa Donato
- Centre for Genomic Science of IIT@SEMM, Istituto Italiano di Tecnologia, Milan, 20139, Italy.,Division of Stem Cells and Cancer, Deutsches Krebsforschungszentrum, Heidelberg, Germany.,Heidelberg Institute for Stem Cell Technology and Experimental Medicine, Heidelberg, Germany
| | - Fabio Rossi
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, 20129, Italy
| | - Francesco Bifari
- Laboratory of Cell Metabolism and Regenerative Medicine, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, 20129, Milan, Italy
| | - Caterina Lonati
- Center for Surgical Research, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, 20122, Italy
| | - Stefano Campaner
- Centre for Genomic Science of IIT@SEMM, Istituto Italiano di Tecnologia, Milan, 20139, Italy
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, 20129, Italy.
| | - Yvan Torrente
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Centro Dino Ferrari, 20122, Milan, Italy.
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22
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Tedesco L, Corsetti G, Ruocco C, Ragni M, Rossi F, Carruba MO, Valerio A, Nisoli E. A specific amino acid formula prevents alcoholic liver disease in rodents. Am J Physiol Gastrointest Liver Physiol 2018; 314:G566-G582. [PMID: 29368944 DOI: 10.1152/ajpgi.00231.2017] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Chronic alcohol consumption promotes mitochondrial dysfunction, oxidative stress, defective protein metabolism, and fat accumulation in hepatocytes (liver steatosis). Inadequate amino acid metabolism is worsened by protein malnutrition, frequently present in alcohol-consuming patients, with reduced circulating branched-chain amino acids (BCAAs). Here we asked whether dietary supplementation with a specific amino acid mixture, enriched in BCAAs (BCAAem) and able to promote mitochondrial function in muscle of middle-aged rodents, would prevent mitochondrial dysfunction and liver steatosis in Wistar rats fed on a Lieber-DeCarli ethanol (EtOH)-containing liquid diet. Supplementation of BCAAem, unlike a mixture based on the amino acid profile of casein, abrogated the EtOH-induced fat accumulation, mitochondrial impairment, and oxidative stress in liver. These effects of BCAAem were accompanied by normalization of leucine, arginine, and tryptophan levels, which were reduced in liver of EtOH-consuming rats. Moreover, although the EtOH exposure of HepG2 cells reduced mitochondrial DNA, mitochondrial transcription factors, and respiratory chain proteins, the BCAAem but not casein-derived amino acid supplementation halted this mitochondrial toxicity. Nicotinamide adenine dinucleotide levels and sirtuin 1 (Sirt1) expression, as well as endothelial nitric oxide (eNOS) and mammalian/mechanistic target of rapamycin (mTOR) signaling pathways, were downregulated in the EtOH-exposed HepG2 cells. BCAAem reverted these molecular defects and the mitochondrial dysfunction, suggesting that the mitochondrial integrity obtained with the amino acid supplementation could be mediated through a Sirt1-eNOS-mTOR pathway. Thus a dietary activation of the mitochondrial biogenesis and function by a specific amino acid supplement protects against the EtOH toxicity and preserves the liver integrity in mammals. NEW & NOTEWORTHY Dietary supplementation of a specific amino acid formula prevents both fat accumulation and mitochondrial dysfunction in hepatocytes of alcohol-consuming rats. These effects are accompanied also by increased expression of anti-reactive oxygen species genes. The amino acid-protective effects likely reflect activation of sirtuin 1-endothelial nitric oxide synthase-mammalian target of rapamycin pathway able to regulate the cellular energy balance of hepatocytes exposed to chronic, alcoholic damage.
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Affiliation(s)
- Laura Tedesco
- Department of Medical Biotechnology and Translational Medicine, Center for Study and Research on Obesity, University of Milan , Milan , Italy
| | - Giovanni Corsetti
- Department of Clinical and Experimental Sciences, University of Brescia , Brescia , Italy
| | - Chiara Ruocco
- Department of Medical Biotechnology and Translational Medicine, Center for Study and Research on Obesity, University of Milan , Milan , Italy
| | - Maurizio Ragni
- Department of Medical Biotechnology and Translational Medicine, Center for Study and Research on Obesity, University of Milan , Milan , Italy
| | - Fabio Rossi
- Department of Medical Biotechnology and Translational Medicine, Center for Study and Research on Obesity, University of Milan , Milan , Italy
| | - Michele O Carruba
- Department of Medical Biotechnology and Translational Medicine, Center for Study and Research on Obesity, University of Milan , Milan , Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, University of Brescia , Brescia , Italy
| | - Enzo Nisoli
- Department of Medical Biotechnology and Translational Medicine, Center for Study and Research on Obesity, University of Milan , Milan , Italy
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Bifari F, Ruocco C, Decimo I, Fumagalli G, Valerio A, Nisoli E. Amino acid supplements and metabolic health: a potential interplay between intestinal microbiota and systems control. Genes Nutr 2017; 12:27. [PMID: 29043007 PMCID: PMC5628494 DOI: 10.1186/s12263-017-0582-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 08/17/2017] [Indexed: 01/12/2023]
Abstract
Dietary supplementation of essential amino acids (EAAs) has been shown to promote healthspan. EAAs regulate, in fact, glucose and lipid metabolism and energy balance, increase mitochondrial biogenesis, and maintain immune homeostasis. Basic science and epidemiological results indicate that dietary macronutrient composition affects healthspan through multiple and integrated mechanisms, and their effects are closely related to the metabolic status to which they act. In particular, EAA supplementation can trigger different and even opposite effects depending on the catabolic and anabolic states of the organisms. Among others, gut-associated microbial communities (referred to as gut microbiota) emerged as a major regulator of the host metabolism. Diet and host health influence gut microbiota, and composition of gut microbiota, in turn, controls many aspects of host health, including nutrient metabolism, resistance to infection, and immune signals. Altered communication between the innate immune system and the gut microbiota might contribute to complex diseases. Furthermore, gut microbiota and its impact to host health change largely during different life phases such as lactation, weaning, and aging. Here we will review the accumulating body of knowledge on the impact of dietary EAA supplementation on the host metabolic health and healthspan from a holistic perspective. Moreover, we will focus on the current efforts to establish causal relationships among dietary EAAs, gut microbiota, and health during human development.
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Affiliation(s)
- Francesco Bifari
- Laboratory of Cell Metabolism and Regenerative Medicine, Department of Medical Biotechnology and Translational Medicine, University of Milan, Milan, Italy
| | - Chiara Ruocco
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milan, Italy
| | - Ilaria Decimo
- Section of Pharmacology, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Guido Fumagalli
- Section of Pharmacology, Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Alessandra Valerio
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Enzo Nisoli
- Center for Study and Research on Obesity, Department of Medical Biotechnology and Translational Medicine, University of Milan, 20129 Milan, Italy
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D'Antona G, Tedesco L, Ruocco C, Corsetti G, Ragni M, Fossati A, Saba E, Fenaroli F, Montinaro M, Carruba MO, Valerio A, Nisoli E. A Peculiar Formula of Essential Amino Acids Prevents Rosuvastatin Myopathy in Mice. Antioxid Redox Signal 2016; 25:595-608. [PMID: 27245589 PMCID: PMC5065032 DOI: 10.1089/ars.2015.6582] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
AIMS Myopathy, characterized by mitochondrial oxidative stress, occurs in ∼10% of statin-treated patients, and a major risk exists with potent statins such as rosuvastatin (Rvs). We sought to determine whether a peculiar branched-chain amino acid-enriched mixture (BCAAem), found to improve mitochondrial function and reduce oxidative stress in muscle of middle-aged mice, was able to prevent Rvs myopathy. RESULTS Dietary supplementation of BCAAem was able to prevent the structural and functional alterations of muscle induced by Rvs in young mice. Rvs-increased plasma 3-methylhistidine (a marker of muscular protein degradation) was prevented by BCAAem. This was obtained without changes of Rvs ability to reduce cholesterol and triglyceride levels in blood. Rather, BCAAem promotes de novo protein synthesis and reduces proteolysis in cultured myotubes. Morphological alterations of C2C12 cells induced by statin were counteracted by amino acids, as were the Rvs-increased atrogin-1 mRNA and protein levels. Moreover, BCAAem maintained mitochondrial mass and density and citrate synthase activity in skeletal muscle of Rvs-treated mice beside oxygen consumption and ATP levels in C2C12 cells exposed to statin. Notably, BCAAem assisted Rvs to reduce oxidative stress and to increase the anti-reactive oxygen species (ROS) defense system in skeletal muscle. Innovation and Conclusions: The complex interplay between proteostasis and antioxidant properties may underlie the mechanism by which a specific amino acid formula preserves mitochondrial efficiency and muscle health in Rvs-treated mice. Strategies aimed at promoting protein balance and controlling mitochondrial ROS level may be used as therapeutics for the treatment of muscular diseases involving mitochondrial dysfunction, such as statin myopathy. Antioxid. Redox Signal. 25, 595-608.
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Affiliation(s)
- Giuseppe D'Antona
- 1 Department of Public Health, Experimental and Forensic Medicine, Pavia University , Pavia, Italy
| | - Laura Tedesco
- 2 Department of Medical Biotechnology and Translational Medicine, Center for Study and Research on Obesity, Milan University , Milan, Italy
| | - Chiara Ruocco
- 2 Department of Medical Biotechnology and Translational Medicine, Center for Study and Research on Obesity, Milan University , Milan, Italy
| | - Giovanni Corsetti
- 3 Department of Clinical and Experimental Sciences, Brescia University , Brescia, Italy
| | - Maurizio Ragni
- 2 Department of Medical Biotechnology and Translational Medicine, Center for Study and Research on Obesity, Milan University , Milan, Italy
| | - Andrea Fossati
- 2 Department of Medical Biotechnology and Translational Medicine, Center for Study and Research on Obesity, Milan University , Milan, Italy
| | - Elisa Saba
- 4 Department of Molecular and Translational Medicine, Brescia University , Brescia, Italy
| | - Francesca Fenaroli
- 4 Department of Molecular and Translational Medicine, Brescia University , Brescia, Italy
| | - Mery Montinaro
- 4 Department of Molecular and Translational Medicine, Brescia University , Brescia, Italy
| | - Michele O Carruba
- 2 Department of Medical Biotechnology and Translational Medicine, Center for Study and Research on Obesity, Milan University , Milan, Italy
| | - Alessandra Valerio
- 4 Department of Molecular and Translational Medicine, Brescia University , Brescia, Italy
| | - Enzo Nisoli
- 2 Department of Medical Biotechnology and Translational Medicine, Center for Study and Research on Obesity, Milan University , Milan, Italy
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Corsetti G, D’Antona G, Ruocco C, Stacchiotti A, Romano C, Tedesco L, Dioguardi F, Rezzani R, Nisoli E. Dietary supplementation with essential amino acids boosts the beneficial effects of rosuvastatin on mouse kidney. Amino Acids 2014; 46:2189-203. [PMID: 24923264 PMCID: PMC4133027 DOI: 10.1007/s00726-014-1772-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Accepted: 05/26/2014] [Indexed: 12/25/2022]
Abstract
The effects of high-potency statins on renal function are controversial. To address the impact of statins on renal morpho-functional aspects, normotensive young mice were treated with rosuvastatin (Rvs). Moreover, because statins may impair mitochondrial function, mice received either dietary supplementation with an amino acid mixture enriched in essential amino acids (EAAm), which we previously demonstrated to increase mitochondrial biogenesis in muscle or an unsupplemented control diet for 1 month. Mitochondrial biogenesis and function, apoptosis, and insulin signaling pathway events were studied, primarily in cortical proximal tubules. By electron microscopy analysis, mitochondria were more abundant and more heterogeneous in size, with dense granules in the inner matrix, in Rvs- and Rvs plus EAAm-treated animals. Rvs administration increased protein kinase B and endothelial nitric oxide synthase phosphorylation, but the mammalian target of rapamycin signaling pathway was not affected. Rvs increased the expression of sirtuin 1, peroxisome proliferator-activated receptor γ coactivator-1α, cytochrome oxidase type IV, cytochrome c, and mitochondrial biogenesis markers. Levels of glucose-regulated protein 75 (Grp75), B-cell lymphoma 2, and cyclin-dependent kinase inhibitor 1 were increased in cortical proximal tubules, and expression of the endoplasmic reticulum-mitochondrial chaperone Grp78 was decreased. EAAm supplementation maintained or enhanced these changes. Rvs promotes mitochondrial biogenesis, with a probable anti-apoptotic effect. EAAm boosts these processes and may contribute to the efficient control of cellular energetics and survival in the mouse kidney. This suggests that appropriate nutritional interventions may enhance the beneficial actions of Rvs, and could potentially prevent chronic renal side effects.
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Affiliation(s)
- Giovanni Corsetti
- Division of Human Anatomy, Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy
| | - Giuseppe D’Antona
- Department of Molecular Medicine, University of Pavia, 27100 Pavia, Italy
| | - Chiara Ruocco
- Department of Medical Biotechnology and Translational Medicine, University of Milan, via Vanvitelli 32, 20129 Milan, Italy
| | - Alessandra Stacchiotti
- Division of Human Anatomy, Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy
| | - Claudia Romano
- Division of Human Anatomy, Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy
| | - Laura Tedesco
- Department of Medical Biotechnology and Translational Medicine, University of Milan, via Vanvitelli 32, 20129 Milan, Italy
| | - Francesco Dioguardi
- Department of Clinical Sciences and Community, University of Milan, 20122 Milan, Italy
| | - Rita Rezzani
- Division of Human Anatomy, Department of Clinical and Experimental Sciences, University of Brescia, 25123 Brescia, Italy
| | - Enzo Nisoli
- Department of Medical Biotechnology and Translational Medicine, University of Milan, via Vanvitelli 32, 20129 Milan, Italy
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Vettor R, Valerio A, Ragni M, Trevellin E, Granzotto M, Olivieri M, Tedesco L, Ruocco C, Fossati A, Fabris R, Serra R, Carruba MO, Nisoli E. Exercise training boosts eNOS-dependent mitochondrial biogenesis in mouse heart: role in adaptation of glucose metabolism. Am J Physiol Endocrinol Metab 2014; 306:E519-28. [PMID: 24381004 DOI: 10.1152/ajpendo.00617.2013] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Endurance exercise training increases cardiac energy metabolism through poorly understood mechanisms. Nitric oxide (NO) produced by endothelial NO synthase (eNOS) in cardiomyocytes contributes to cardiac adaptation. Here we demonstrate that the NO donor diethylenetriamine-NO (DETA-NO) activated mitochondrial biogenesis and function, as assessed by upregulated peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α), nuclear respiratory factor 1, and mitochondrial transcription factor A (Tfam) expression, and by increased mitochondrial DNA content and citrate synthase activity in primary mouse cardiomyocytes. DETA-NO also induced mitochondrial biogenesis and function and enhanced both basal and insulin-stimulated glucose uptake in HL-1 cardiomyocytes. The DETA-NO-mediated effects were suppressed by either PGC-1α or Tfam small-interference RNA in HL-1 cardiomyocytes. Wild-type and eNOS(-/-) mice were subjected to 6 wk graduated swim training. We found that eNOS expression, mitochondrial biogenesis, mitochondrial volume density and number, and both basal and insulin-stimulated glucose uptake were increased in left ventricles of swim-trained wild-type mice. On the contrary, the genetic deletion of eNOS prevented all these adaptive phenomena. Our findings demonstrate that exercise training promotes eNOS-dependent mitochondrial biogenesis in heart, which behaves as an essential step in cardiac glucose transport.
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Affiliation(s)
- Roberto Vettor
- Internal Medicine Unit and Center for the Study and Integrated Treatment of Obesity, Department of Medicine, Padua University, Padua, Italy
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Zulian A, Cancello R, Ruocco C, Gentilini D, Di Blasio AM, Danelli P, Micheletto G, Cesana E, Invitti C. Differences in visceral fat and fat bacterial colonization between ulcerative colitis and Crohn's disease. An in vivo and in vitro study. PLoS One 2013; 8:e78495. [PMID: 24205244 PMCID: PMC3813471 DOI: 10.1371/journal.pone.0078495] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 09/13/2013] [Indexed: 11/19/2022] Open
Abstract
Crohn's disease (CD) is notably characterized by the expansion of visceral fat with small adipocytes expressing a high proportion of anti-inflammatory genes. Conversely, visceral fat depots in ulcerative colitis (UC) patients have never been characterized. Our study aims were a) to compare adipocyte morphology and gene expression profile and bacterial translocation in omental (OM) and mesenteric (MES) adipose tissue of patients with UC and CD, and b) to investigate the effect of bacterial infection on adipocyte proliferation in vitro. Specimens of OM and MES were collected from 11 UC and 11 CD patients, processed and examined by light microscopy. Gene expression profiles were evaluated in adipocytes isolated from visceral adipose tissue using microarray and RTqPCR validations. Bacteria within adipose tissue were immuno-detected by confocal scanning laser microscopy. Adipocytes were incubated with Enterococcus faecalis and cells counted after 24 h. Morphology and molecular profile of OM and MES revealed that UC adipose tissue is less inflamed than CD adipose tissue. Genes linked to inflammation, bacterial response, chemotaxis and angiogenesis were down-regulated in adipocytes from UC compared to CD, whereas genes related to metallothioneins, apoptosis pathways and growth factor binding were up-regulated. A dense perinuclear positivity for Enterococcus faecalis was detected in visceral adipocytes from CD, whereas positivity was weak in UC. In vitro bacterial infection was associated with a five-fold increase in the proliferation rate of OM preadipocytes. Compared to UC, visceral adipose tissue from CD is more inflamed and more colonized by intestinal bacteria, which increase adipocyte proliferation. The influence of bacteria stored within adipocytes on the clinical course of IBD warrants further investigations.
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Affiliation(s)
- Alessandra Zulian
- Diabetes Research Laboratory, Istituto Auxologico Italiano, Milan, Italy
| | - Raffaella Cancello
- Laboratory of Molecular Biology, Istituto Auxologico Italiano, Milan, Italy
| | - Chiara Ruocco
- Diabetes Research Laboratory, Istituto Auxologico Italiano, Milan, Italy
| | - Davide Gentilini
- Laboratory of Molecular Biology, Istituto Auxologico Italiano, Milan, Italy
| | | | - Piergiorgio Danelli
- Department of Clinical Sciences, Luigi Sacco Hospital, University of Milan, Milan, Italy
| | - Giancarlo Micheletto
- Department of Medical and Surgical Pathophysiology and Transplants, University of Milan, Milan, Italy
| | | | - Cecilia Invitti
- Department of Medical Sciences and Rehabilitation, Istituto Auxologico Italiano, Milan, Italy
- * E-mail:
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Marolda R, Ruocco C, Cordiglieri C, Toscani C, Antozzi C, Mantegazza R, Baggi F. Differential targeting of immune-cells by Pixantrone in experimental myasthenia gravis. J Neuroimmunol 2013; 258:41-50. [DOI: 10.1016/j.jneuroim.2013.02.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Revised: 02/22/2013] [Accepted: 02/26/2013] [Indexed: 11/28/2022]
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Nessi V, Nava S, Ruocco C, Toscani C, Mantegazza R, Antozzi C, Baggi F. Naturally occurring CD4+CD25+ regulatory T cells prevent but do not improve experimental myasthenia gravis. J Immunol 2010; 185:5656-67. [PMID: 20881192 DOI: 10.4049/jimmunol.0903183] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
In the current study, we investigated whether naturally occurring CD4(+)CD25(+) T cells, separated by immunomagnetic anti-CD4 and anti-CD25 Abs from naive animals, are able to protect from experimental autoimmune myasthenia gravis (EAMG) and modify the progression of ongoing disease when administered to Torpedo californica acetylcholine receptor (AChR)-immunized Lewis rats. Even though CD4(+)CD25(+) and CD4(+)CD25(high) T cell frequencies were similar in the spleens and lymph nodes of EAMG and healthy rats, we observed that CD4(+)CD25(+) T cells isolated from the spleens of naive animals inhibited in vitro the Ag-induced proliferation of T cell lines specific to the self-peptide 97-116 of the anti-AChR subunit (R97-116), an immunodominant and myasthenogenic T cell epitope, whereas CD4(+)CD25(+) T cells purified from the spleens of EAMG rats were less effective. CD4(+)CD25(+) T cells from EAMG rats expressed less forkhead box transcription factor P3 but more CTLA-4 mRNA than healthy rats. Naive CD4(+)CD25(+) T cells, obtained from naive rats and administered to T. californica AChR-immunized animals according to a preventive schedule of treatment, reduced the severity of EAMG, whereas their administration 4 wk postinduction of the disease, corresponding to the onset of clinical symptoms (therapeutic treatment), was not effective. We think that the exogenous administration of CD4(+)CD25(+) naive T cells prevents the early events underlying the induction of EAMG, events linked to the T cell compartment (Ag recognition, epitope spreading, and T cell expansion), but fails to ameliorate ongoing EAMG, when the IgG-mediated complement attack to the AChR at the neuromuscular junction has already taken place.
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Affiliation(s)
- Valeria Nessi
- Neurology IV, Neurological Institute Foundation Carlo Besta, Milan, Italy
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30
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Russo D, Miranda I, Ruocco C, Battaglia Y, Buonanno E, Manzi S, Russo L, Scafarto A, Andreucci VE. The progression of coronary artery calcification in predialysis patients on calcium carbonate or sevelamer. Kidney Int 2007; 72:1255-61. [PMID: 17805238 DOI: 10.1038/sj.ki.5002518] [Citation(s) in RCA: 239] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Coronary artery calcification is more prevalent in dialysis patients than in patients without kidney disease and this is associated with high serum phosphorus. In this study, we evaluate the effect of calcium carbonate or sevelamer treatments on the progression of calcification in 90 predialysis patients. Inclusion criteria were stable serum calcium, phosphorus, parathyroid hormone, and a similar baseline total calcium score (TCS). These patients were not treated by phosphate binder, vitamin D, or statin. They were given low-phosphorus diets without or with daily calcium carbonate or sevelamer throughout the study that averaged 2 years. Baseline demographic or clinical characteristics along with biochemical parameters were not different among the three groups. The TCS significantly increased in patients on the low-phosphorus diet alone, to a lesser extent in calcium carbonate-treated patients, and not at all in sevelamer-treated patients. The progression of coronary calcification paralleled that of the calcium score. Our study shows that sevelamer treatment should not be restricted to dialysis patients; however, a larger study should be undertaken to confirm these results.
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Affiliation(s)
- D Russo
- Department of Nephrology, University Federico II, Naples, Italy.
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31
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Failli P, Fazzini A, Ruocco C, Mazzetti L, Cecchi E, Giovannelli L, Marra F, Milani S, Giotti A. Lack of nitric oxide- and guanosine 3':5'-cyclic monophosphate-dependent regulation of alpha-thrombin-induced calcium transient in endothelial cells of spontaneously hypertensive rat hearts. Br J Pharmacol 2000; 130:1468-76. [PMID: 10928946 PMCID: PMC1572213 DOI: 10.1038/sj.bjp.0703453] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
While the expression and/or activity of endothelial nitric oxide synthase (eNOS) has been characterized in spontaneously hypertensive (SHR) and normotensive Wistar Kyoto rat (WKY) hearts, in coronary endothelial cells (ECs) from both strains, the effect of NO on intracellular calcium concentration ([Ca(2+)](i)) is still unknown. Coronary microvascular ECs were isolated from SHR and WKY and characterized. Immunocytochemistry and Western blot analysis showed that eNOS was similarly expressed in ECs from both strains. Measuring [Ca(2+)](i) by imaging analysis of fura-2-loaded cells, we demonstrated that alpha-thrombin (3-180 U l(-1)) induced a superimposable dose-dependent calcium transient in ECs from both strains. In WKY ECs, S-nitroso-N-acetyl-DL-penicillamine (SNAP) dose-dependently (10 - 100 microM) and 0.1 microM atrial natriuretic factor (ANF) reduced the maximum and the decay time of alpha-thrombin-induced calcium transient. The inhibitory effects of SNAP and ANF were prevented by blocking cyclic GMP-dependent protein kinase. Non selective eNOS inhibitors prolonged the decay time of alpha-thrombin-induced calcium transient, while the selective inducible NOS inhibitor 1400 W was ineffective. SNAP (100 microM) and 0.1 microM ANF increased cyclic GMP content up to 22.9 and 42.3 fold respectively. In SHR ECs, alpha-thrombin-induced calcium transient was not modified by SNAP, ANF or eNOS inhibition. SNAP (100 microM) and 0.1 microM ANF increased cyclic GMP content up to 9. 3 and 51 fold respectively. In WKY ECs, SNAP dose-dependently (10 - 100 microM) reduced also bradykinin-induced calcium transient, while in SHR ECs was ineffective. We concluded that in SHR ECs, the cyclic GMP-dependent regulation of calcium transient is lost.
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Affiliation(s)
- P Failli
- Department of Pharmacology, Viale Pieraccini, 6 50139 Florence, Italy.
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Failli P, Ruocco C, Fazzini A, Giotti A. Calcium waves in unstimulated left ventricular cardiomyocytes isolated from aged spontaneously hypertensive and normotensive rats. Biochem Biophys Res Commun 1997; 237:103-6. [PMID: 9266838 DOI: 10.1006/bbrc.1997.7079] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In this work, we described the incidence and the characteristics of calcium waves in cardiomyocytes isolated from aged normotensive rats (Wistar Kyoto, WKY) and age-matched spontaneously hypertensive rats (SHR) using imaging analysis of fura-2-loaded left ventricular cardiomyocytes. Left ventricular cardiomyocytes were isolated by enzymatic digestion from hearts of 18-20 month old WKY and aged-matched SHR. Intracellular calcium concentration did not differ in either strain, whereas the incidence of cells presenting calcium waves was greater in cardiomyocytes isolated from SHR. Moreover, cardiomyocytes isolated from SHR were significantly longer than those isolated from WKY. The calcium wave frequency was lower in SHR cardiomyocytes, while the velocity of the calcium waves was similar in both strains. Our results suggest that alterations in the calcium handling of SHR may contribute to the increased incidence of arrhythmias described in SHR hearts.
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Affiliation(s)
- P Failli
- Department of Pharmacology, C.I.M.M.B.A., University of Florence, Italy
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Ruocco C, Cerbai E, Failli P, Giotti A, Mugelli A. Calcium-dependent electrophysiological alterations in hypertrophied rat cardiomyocytes. Biochem Biophys Res Commun 1996; 229:425-9. [PMID: 8954914 DOI: 10.1006/bbrc.1996.1820] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We compared the occurrence of calcium-dependent electrophysiological alterations in left ventricular myocytes isolated from the heart of old spontaneously hypertensive (SHR) and age-matched normotensive Wistar Kyoto rats (WKY). Electrical and mechanical activity were measured in patch-clamped myocytes in which intracellular Ca2+ was allowed to change freely. In parallel experiments, intracellular Ca2+ concentration was monitored in fura-2-AM preloaded cells using an image analysis system. Left ventricular myocytes from SHR showed a significantly greater membrane capacitance (an index of cell size), a prolonged duration of the action potential and a higher incidence of delayed afterdepolarization (DADs) and associated aftercontractions, and of spontaneous activity. DADs were likely generated by intracellular Ca2+ waves due to spontaneous and local Ca2+ release from intracellular stores. These results demonstrate that DADs, possibly related to spontaneous intracellular Ca2+ waves, occur frequently in hypertrophied rat cardiomyocytes and may be a relevant arrhythmogenic mechanism.
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Affiliation(s)
- C Ruocco
- Department of Preclinical and Clinical Pharmacology, University of Florence, Italy
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34
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Failli P, Tesco G, Ruocco C, Ginestroni A, Amaducci L, Giotti A, Sorbi S. The effect of tetraethylammonium on intracellular calcium concentration in Alzheimer's disease fibroblasts with APP, S182 and E5-1 missense mutations. Neurosci Lett 1996; 208:216-8. [PMID: 8733308 DOI: 10.1016/0304-3940(96)12586-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
It has been proposed that the lack of intracellular calcium concentration ([Ca2+]i) increase induced by the potassium channel blocker tetraethylammonium (TEA) in skin fibroblast cell lines identifies patients with both sporadic and familial Alzheimer's disease (AD). In order to verify this hypothesis, the effect of TEA on [Ca2+]i was studied in single fura-2-loaded skin fibroblast cell lines available in the Tissue Bank of the Italian Research Council. Four out of eight familial AD patients (one patient with S182 mutation, one patient with E5-1 mutation and two patients with 717 Val-->Ile APP mutation) and two out of five sporadic AD patients showed a positive response to TEA, whereas five out of 11 control lines were unresponsive. Our data suggest that the absence of the TEA-induced increase in [Ca2+]i in skin fibroblast cell lines does not identify all AD patients.
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Affiliation(s)
- P Failli
- Department of Pharmacology, University of Florence, Italy
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Pinzani M, Milani S, De Franco R, Grappone C, Caligiuri A, Gentilini A, Tosti-Guerra C, Maggi M, Failli P, Ruocco C, Gentilini P. Endothelin 1 is overexpressed in human cirrhotic liver and exerts multiple effects on activated hepatic stellate cells. Gastroenterology 1996; 110:534-48. [PMID: 8566602 DOI: 10.1053/gast.1996.v110.pm8566602] [Citation(s) in RCA: 299] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND & AIMS Endothelin (ET) 1 could be involved in the regulation of hepatic microcirculation and in the development of portal hypertension. The expression and distribution of ET-1 in normal and cirrhotic liver tissue and its effects on hepatic stellate cells (HSCs), liver-specific pericytes, were investigated. METHODS ET-1 expression in liver tissue was analyzed using in situ hybridization and immunohistochemistry. Secretion of ET-1 by HSC was evaluated by radioimmunoassay. Changes in intracellular Ca2+ concentration and cell contraction were studied using digital video imaging. Specific binding of ET-1 was evaluated using self- and cross-displacement curves. RESULTS ET-1 expression was markedly enhanced in cirrhotic liver tissue, where activated HSCs were shown to be major sites of ET-1 synthesis, as confirmed by studies performed on cultured human HSC. ET-1 exerted several biological actions on HSC, including mitogenicity, activation of mitogen-activated protein kinase, and a rapid increase in intracellular Ca2+ coupled with reversible cell contraction. All these effects appeared to be mediated by ETA receptors. Finally, the relative prevalence of ETA and ETB binding sites changed with the progressive phenotypical modulation of HSC. CONCLUSIONS ET-1 may act as a paracrine and autocrine factor for activated HSC and contribute to the increased resistance to portal flow in cirrhotic liver.
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Affiliation(s)
- M Pinzani
- Istituto di Medicina Interna-Centro Interuniversitario di Fisiopatologia Epatica, Florence, Italy
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Cecchi E, Capone L, Ruocco C, Fazzini A, Mugelli A, Giotti A, Failli P. Iloprost antagonizes the increase in internal calcium concentration induced by alpha-thrombin in human platelets: a study of desensitization. Cardiovasc Drugs Ther 1995; 9:773-7. [PMID: 8850381 DOI: 10.1007/bf00879870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
We studied the interaction between the synthetic prostacyclin analog iloprost and the aggregating agent alpha-thrombin by measuring the internal calcium ion concentration ([Ca(2+)]i) of human fura-2-loaded platelets. Iloprost (0.003-100 micrograms/l) did not modify the resting calcium level; when added 2 minutes before exposure of the platelets to a submaximally active concentration of alpha-thrombin (10 U/l), iloprost dose-dependently antagonized the increase in [Ca(2+)]i. To evaluate if iloprost retained this antagonistic effect even after a prolonged contact, which is well known to cause a "desensitization" phenomenon, platelets were preincubated with iloprost (35 micrograms/l) for 3 hours. After washout, the effect of newly added iloprost (0.01-100 micrograms/l) on the alpha-thrombin-induced increase in [Ca(2+)]i was tested. Iloprost was still able to antagonize the increase in [Ca(2+)]i induced by alpha-thrombin in "desensitized" platelets; however, the dose-inhibitory response curve was significantly shifted to the right when compared with that obtained in control platelets (i.e., platelets preincubated for 3 hours with iloprost's solvent), and the resulting IC50 was significantly higher: 1.78 versus 0.2 micrograms/l (p < 0.001). Since the maximal inhibitory effect of iloprost could also be reached under these experimental conditions, we conclude that iloprost retains its ability to antagonize the increase in [Ca(2+)]i induced by alpha-thrombin in desensitized platelets.
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Affiliation(s)
- E Cecchi
- Department of Preclinical and Clinical Pharmacology, M. Aiazzi Mancini Firenze, Italy
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Failli P, Ruocco C, De Franco R, Caligiuri A, Gentilini A, Giotti A, Gentilini P, Pinzani M. The mitogenic effect of platelet-derived growth factor in human hepatic stellate cells requires calcium influx. Am J Physiol 1995; 269:C1133-9. [PMID: 7491901 DOI: 10.1152/ajpcell.1995.269.5.c1133] [Citation(s) in RCA: 55] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Platelet-derived growth factor (PDGF) is a key mitogen for hepatic stellate cells (HSC) and has been shown to be implicated in liver tissue repair and fibrogenesis. In this study the relationship between PDGF-induced intracellular Ca2+ concentration ([Ca2+]i) increase and mitogenesis in cultured human HSC was evaluated. In high-density cell cultures (80-90% subconfluence), PDGF induced a significant increase in [Ca2+]i, characterized by a short-lasting peak phase, which was followed by a long-lasting plateau phase. The plateau phase was abolished in the absence of extracellular Ca2+. However, in low-density cell cultures (30-40% subconfluence), the plateau phase was absent or markedly less pronounced. In parallel sets of experiments, PDGF was significantly less effective in inducing mitogenesis in low-density cell cultures than in high-density cell cultures and was totally ineffective in the absence of extracellular Ca2+. These results suggest that 1) spatial and time dynamics of PDGF-induced [Ca2+]i increase are dependent on cell density and 2) PDGF-induced mitogenesis requires extracellular Ca2+ influx.
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Affiliation(s)
- P Failli
- Dipartimento di Farmacologia, Università di Firenze, Italy
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Failli P, Ruocco C, Giotti A, De Franco R, Caligiuri A, Gentilini A, Gentilini P, Pinzani M. Effects of endothelin isopeptides in cultured human hepatic stellate cells (HSC). Pharmacol Res 1995. [DOI: 10.1016/1043-6618(95)87229-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Failli P, Cecchi E, Ruocco C, Fazzini A, Giotti A. Effects of L- and D-arginine and some related esters on the cytosolic mechanisms of alpha-thrombin-induced human platelet activation. Br J Pharmacol 1993; 110:213-8. [PMID: 8220881 PMCID: PMC2175985 DOI: 10.1111/j.1476-5381.1993.tb13794.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
1. In Fura-2 preloaded human platelets, the increase in cytosolic calcium induced by alpha-thrombin was reduced by some L- and D-arginine ester compounds the IC50 (microM) values of which were 7.4 for TAEE, 56.9 for BAEE, 77.6 for TAME, 560 for T(d)AME, 656.3 for L-ArgOMe and 2206.7 for D-ArgOMe. alpha-tosyl-L-Arginine, L- and D-arginine were inactive. 2. The inhibitory activity of the L-arginine esters was not modified when platelets were pretreated with 100 microM N omega-monomethyl-L-arginine. 3. The L-arginine esters did not increase cyclic GMP content in platelets either in the presence or absence of indomethacin and apyrase at rest and after alpha-thrombin stimulation. 4. The kinetic parameters of platelet Na+/H+ antiporter (amiloride-inhibitable, evaluated after cytosolic nigericin-induced acidification) were modified by L- and D-arginine esters, while the native amino acids were ineffective. 5. The inhibitory effects of the L- and D-arginine esters on platelet activation appear to be mainly due to their inhibitory effect on Na+/H+ antiporter.
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Affiliation(s)
- P Failli
- Dipartimento di Farmacologia Preclinica e Clinica M. Aiazzi Mancini, University of Florence, Italy
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Tanini A, Failli P, Maggi M, Franceschelli F, Frediani U, Becherini L, Giotti A, Ruocco C, Brandi ML. Effects of endothelin-1 on bovine parathyroid cells. Biochem Biophys Res Commun 1993; 193:59-66. [PMID: 8503938 DOI: 10.1006/bbrc.1993.1590] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Endothelin-1 (ET-1) is synthesized and released by parathyroid epithelium. The effects of endothelin isopeptides were studied in clonal bovine parathyroid endothelial (BPE) cells. BPE cells did not produce ET-1, but showed ETA receptors (Kd = 0.1 +/- 0.02 nM, mean +/- SE). ET-1 (10(-8)10(-11)M) increased the intracellular calcium ion concentration ([Ca2+]i) in BPE cells, while endothelin-3 (ET-3) was ineffective. The increase in [Ca2+]i was less sustained in the absence of extracellular Ca2+ ions. Moreover ET-1 induced phospholipase C (PLC) activation, as demonstrated by the increase in inositol trisphosphate. Cell growth was not affected by ET-1 in a wide range of concentrations. The present findings demonstrate: 1) BPE cells possess ETA receptors; 2) the peptide activates PLC and increases cytosolic [Ca2+]i via both a release of Ca2+ ions from intracellular calcium pool(s) and an influx of the cation from the extracellular milieu. A possible role of ET-1 as a paracrine factor in parathyroid tissue can be hypothesized.
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Affiliation(s)
- A Tanini
- Department of Clinical Pharmacology, University of Florence, Italy
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Pinzani M, Failli P, Ruocco C, Casini A, Milani S, Baldi E, Giotti A, Gentilini P. Fat-storing cells as liver-specific pericytes. Spatial dynamics of agonist-stimulated intracellular calcium transients. J Clin Invest 1992; 90:642-6. [PMID: 1644929 PMCID: PMC443145 DOI: 10.1172/jci115905] [Citation(s) in RCA: 219] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Liver perisinusoidal fat-storing cells (FSC) show morphological and ultrastructural characteristics similar to pericytes regulating local blood flow in other organs. In the present study we have analyzed whether FSC respond to local vasoconstrictors such as thrombin, angiotensin-II, and endothelin-1 with an increase in intracellular free calcium concentration ([Ca2+]i) coupled with effective cell contraction. All agonists tested induced a rapid and dose-dependent increase in [Ca2+]i followed by a sustained phase lasting several minutes in confluent monolayers of Fura-2-loaded human FSC. Pharmacological studies performed using different Ca2+ channel blockers indicated that, at least for thrombin and angiotensin-II, the sustained phase is due to the opening of voltage-sensitive membrane Ca2+ channels. To analyze the temporal and spatial dynamics of Ca2+ release in response to these agonists, we performed experiments on individual Fura-2-loaded human FSC using a dual wavelength, radiometric video imaging system. The rise in [Ca2+]i was exclusively localized to the cytoplasm, particularly in the branching processes. Increases in [Ca2+]i more than four-fold were associated with a simultaneous and transient reduction of cell area indicating reversible cell contraction. Our results indicate that the Ca(2+)-dependent contraction of human FSC in vitro may reflect a potential role in regulating sinusoidal blood flow in vivo.
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Affiliation(s)
- M Pinzani
- Istituto di Clinica Medica II, Università di Firenze, Italy
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Failli P, Ruocco C, Tanini A, Brandi ML, Benvenuti S, Franceschelli F, Giotti A. Endothelin-1 increases intracellular calcium content in bovine parathyroid endothelial cells. Pharmacol Res 1992; 25 Suppl 1:23-4. [PMID: 1508798 DOI: 10.1016/1043-6618(92)90522-d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- P Failli
- Clinica Medica III, Università di Firenze
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Budetta M, Benevento L, Ruocco C. [Influence of biometeorological factors on the human organism with particular reference to children]. Resen Clin Cient 1971; 40:27-33. [PMID: 5094940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Budetta M, Benevento L, Ruocco C. [Treatment of infantile anorexia with cyproheptadine. Trials in congenital and dystrophic diseases]. Minerva Med 1969; 60:2347-52. [PMID: 5255483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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