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Austad SN, Smith JR, Hoffman JM. Amino acid restriction, aging, and longevity: an update. FRONTIERS IN AGING 2024; 5:1393216. [PMID: 38757144 PMCID: PMC11096585 DOI: 10.3389/fragi.2024.1393216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/18/2024] [Indexed: 05/18/2024]
Abstract
Various so-called dietary restriction paradigms have shown promise for extending health and life. All such paradigms rely on ad libitum (hereafter ad lib) feeding, something virtually never employed in animals whose long-term health we value, either as a control or, except for food restriction itself, for both control and treatment arms of the experiment. Even though the mechanism(s) remain only vaguely understood, compared to ad lib-fed animals a host of dietary manipulations, including calorie restriction, low protein, methionine, branched-chain amino acids, and even low isoleucine have demonstrable health benefits in laboratory species in a standard laboratory environment. The remaining challenge is to determine whether these health benefits remain in more realistic environments and how they interact with other health enhancing treatments such as exercise or emerging geroprotective drugs. Here we review the current state of the field of amino acid restriction on longevity of animal models and evaluate its translational potential.
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Affiliation(s)
- S. N. Austad
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - J. R. Smith
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - J. M. Hoffman
- Department of Biological Sciences, Augusta University, Augusta, GA, United States
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2
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Yousf S, Batra HS, Jha RM, Sardesai DM, Ananthamohan K, Chugh J, Sharma S. Identification of potential serum biomarkers associated with HbA1c levels in Indian type 2 diabetic subjects using NMR-based metabolomics. Clin Chim Acta 2024; 557:117857. [PMID: 38484908 DOI: 10.1016/j.cca.2024.117857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/29/2024] [Accepted: 03/02/2024] [Indexed: 03/25/2024]
Abstract
BACKGROUND The prevalence of type 2 diabetes mellitus (T2DM), a progressive metabolic disorder characterized by chronic hyperglycemia and the development of insulin resistance, has increased globally, with worrying statistics coming from children, adolescents, and young adults from developing countries like India. Here, we investigated unique circulating metabolic signatures associated with prediabetes and T2DM in an Indian cohort using NMR-based metabolomics. MATERIALS AND METHODS The study subjects included healthy volunteers (N = 101), prediabetic subjects (N = 75), and T2DM patients (N = 108). Serum metabolic profiling was performed using 1H NMR spectroscopy and major perturbed metabolites were identified by multivariate analysis and receiver operating characteristic (ROC) modules. RESULTS Of the 36 aqueous abundant metabolites, 24 showed a statistically significant difference between healthy volunteers, prediabetics, and established T2DM subjects. On performing multivariate ROC curve analysis with 5 commonly dysregulated metabolites (namely, glucose, pyroglutamate, o-phosphocholine, serine, and methionine) in prediabetes and T2DM, AUC values obtained were 0.96 (95 % confidence interval (CI) = 0.93, 0.98) for T2DM; and 0.88 (95 % CI = 0.81, 0.93) for prediabetic subjects, respectively. CONCLUSION We propose that the identified metabolite panel can be used in the future as a biomarker for clinical diagnosis, patient surveillance, and for predicting individuals at risk for developing diabetes.
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Affiliation(s)
- Saleem Yousf
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411008, India; Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Hitender S Batra
- Department of Biochemistry, Armed Forces Medical College (AFMC), Wanowrie, Pune 411040, India; Department of Biochemistry, Symbiosis Medical College for Women, Pune 412115, India.
| | - Rakesh M Jha
- Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune 411007, India
| | - Devika M Sardesai
- Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune 411007, India
| | - Kalyani Ananthamohan
- Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune 411007, India
| | - Jeetender Chugh
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan, Pune 411008, India.
| | - Shilpy Sharma
- Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune 411007, India.
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3
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Pu K, Feng Y, Tang Q, Yang G, Xu C. Review of dietary patterns and gastric cancer risk: epidemiology and biological evidence. Front Oncol 2024; 14:1333623. [PMID: 38444674 PMCID: PMC10912593 DOI: 10.3389/fonc.2024.1333623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 02/02/2024] [Indexed: 03/07/2024] Open
Abstract
Due to rapid research expansion on dietary factors and development of cancer prevention guidelines, the field of dietary pattern and its relationship to cancer risk has gained more focus. Numerous epidemiology studies have reported associations between Gastric Cancer (GC) and both data-driven posteriori dietary pattern and priori dietary pattern defined by predetermined dietary indexes. As dietary patterns have evolved, a series of patterns based on biological markers has advanced, offering deeper insights into the relationship between diet and the risk of cancer. Although researches on dietary patterns and cancer risk are booming, there is limited body of literature focusing specifically on GC. In this study, we compare the similarities and differences among the specific components of dietary patterns and indices, summarize current state of knowledge regarding dietary patterns related to GC and illustrate their potential mechanisms for GC prevention. In conclusion, we offer suggestions for future research based on the emerging themes within this rapidly evolving field.
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Affiliation(s)
- Ke Pu
- Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- Department of Gastroenterology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Yang Feng
- Department of Neurosurgery, Xi’an No.3 Hospital, The Affiliated Hospital of Northwest University, Xi’an, Shaanxi, China
| | - Qian Tang
- Statesboro Office, Southeast Medical Group, Atlanta, GA, United States
| | - Guodong Yang
- Department of Gastroenterology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, China
| | - Chuan Xu
- Department of Oncology & Cancer Institute, Sichuan Academy of Medical Sciences, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- Department of Laboratory Medicine and Sichuan Provincial Key Laboratory for Human Disease Gene Study, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
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Abstract
Amino acids derived from protein digestion are important nutrients for the growth and maintenance of organisms. Approximately half of the 20 proteinogenic amino acids can be synthesized by mammalian organisms, while the other half are essential and must be acquired from the nutrition. Absorption of amino acids is mediated by a set of amino acid transporters together with transport of di- and tripeptides. They provide amino acids for systemic needs and for enterocyte metabolism. Absorption is largely complete at the end of the small intestine. The large intestine mediates the uptake of amino acids derived from bacterial metabolism and endogenous sources. Lack of amino acid transporters and peptide transporter delays the absorption of amino acids and changes sensing and usage of amino acids by the intestine. This can affect metabolic health through amino acid restriction, sensing of amino acids, and production of antimicrobial peptides.
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Affiliation(s)
- Stefan Bröer
- Research School of Biology, Australian National University, Canberra, Australia;
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Jonsson WO, Borowik AK, Pranay A, Kinter MT, Mirek ET, Levy JL, Snyder EM, Miller BF, Anthony TG. Kinetic proteomics identifies targeted changes in liver metabolism and the ribo-interactome by dietary sulfur amino acid restriction. GeroScience 2023; 45:2425-2441. [PMID: 36976488 PMCID: PMC10651627 DOI: 10.1007/s11357-023-00758-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 02/19/2023] [Indexed: 03/29/2023] Open
Abstract
Dietary sulfur amino acid restriction (SAAR) protects against diet-induced obesity, extends healthspan, and coincides with an overall reduction in hepatic protein synthesis. To explore the underpinnings of SAAR-induced slowed growth and its impact on liver metabolism and proteostasis, we resolved changes in hepatic mRNA and protein abundances and compared synthesis rates of individual liver proteins. To achieve this, adult male mice were provided deuterium-labeled drinking water while freely consuming either a regular-fat or high-fat diet that was SAA restricted. Livers from these mice and their respective dietary controls were used to conduct transcriptomic, proteomic, and kinetic proteomic analyses. We found that remodeling of the transcriptome by SAAR was largely agnostic to dietary fat content. Shared signatures included activation of the integrated stress response alongside alterations in metabolic processes impacting lipids, fatty acids, and amino acids. Changes to the proteome correlated poorly with the transcriptome, and yet, functional clustering of kinetic proteomic changes in the liver during SAAR revealed that the management of fatty acids and amino acids were altered to support central metabolism and redox balance. Dietary SAAR also strongly influenced the synthesis rates of ribosomal proteins and ribosome-interacting proteins regardless of dietary fat. Taken together, dietary SAAR alters the transcriptome and proteome in the liver to safely manage increased fatty acid flux and energy use and couples this with targeted changes in the ribo-interactome to support proteostasis and slowed growth.
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Affiliation(s)
- William O Jonsson
- Department of Nutritional Sciences and the New Jersey Institute for Food, Nutrition and Health, Rutgers University, 59 Dudley Road - Foran Hall, Room 166, New Brunswick, NJ, 08901, USA
| | - Agnieszka K Borowik
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Atul Pranay
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Michael T Kinter
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Emily T Mirek
- Department of Nutritional Sciences and the New Jersey Institute for Food, Nutrition and Health, Rutgers University, 59 Dudley Road - Foran Hall, Room 166, New Brunswick, NJ, 08901, USA
| | - Jordan L Levy
- Department of Nutritional Sciences and the New Jersey Institute for Food, Nutrition and Health, Rutgers University, 59 Dudley Road - Foran Hall, Room 166, New Brunswick, NJ, 08901, USA
| | - Elizabeth M Snyder
- Department of Animal Sciences, Rutgers University, New Brunswick, NJ, USA
| | - Benjamin F Miller
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
- Oklahoma City VA, Oklahoma City, OK, USA
| | - Tracy G Anthony
- Department of Nutritional Sciences and the New Jersey Institute for Food, Nutrition and Health, Rutgers University, 59 Dudley Road - Foran Hall, Room 166, New Brunswick, NJ, 08901, USA.
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Influence of the Mediterranean Diet on Healthy Aging. Int J Mol Sci 2023; 24:ijms24054491. [PMID: 36901921 PMCID: PMC10003249 DOI: 10.3390/ijms24054491] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/18/2023] [Accepted: 02/21/2023] [Indexed: 03/02/2023] Open
Abstract
The life expectancy of the global population has increased. Aging is a natural physiological process that poses major challenges in an increasingly long-lived and frail population. Several molecular mechanisms are involved in aging. Likewise, the gut microbiota, which is influenced by environmental factors such as diet, plays a crucial role in the modulation of these mechanisms. The Mediterranean diet, as well as the components present in it, offer some proof of this. Achieving healthy aging should be focused on the promotion of healthy lifestyle habits that reduce the development of pathologies that are associated with aging, in order to increase the quality of life of the aging population. In this review we analyze the influence of the Mediterranean diet on the molecular pathways and the microbiota associated with more favorable aging patterns, as well as its possible role as an anti-aging treatment.
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Pang X, Miao Z, Dong Y, Cheng H, Xin X, Wu Y, Han M, Su Y, Yuan J, Shao Y, Yan L, Li J. Dietary methionine restriction alleviates oxidative stress and inflammatory responses in lipopolysaccharide-challenged broilers at early age. Front Pharmacol 2023; 14:1120718. [PMID: 36874014 PMCID: PMC9975741 DOI: 10.3389/fphar.2023.1120718] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 01/20/2023] [Indexed: 02/17/2023] Open
Abstract
In this study, we investigated the effect of dietary methionine restriction (MR) on the antioxidant function and inflammatory responses in lipopolysaccharide (LPS)-challenged broilers reared at high stocking density. A total of 504 one-day-old male Arbor Acre broiler chickens were randomly divided into four treatments: 1) CON group, broilers fed a basal diet; 2) LPS group, LPS-challenged broilers fed a basal diet; 3) MR1 group, LPS-challenged broilers fed a methionine-restricted diet (0.3% methionine); and 4) MR2 group, LPS-challenged broilers fed a methionine-restricted diet (0.4% methionine). LPS-challenged broilers were intraperitoneally injected with 1 mg/kg body weight (BW) of LPS at 17, 19, and 21 days of age, whereas the CON group was injected with sterile saline. The results showed that: LPS significantly increased the liver histopathological score (p < 0.05); LPS significantly decreased the serum total antioxidant capacity (T-AOC), superoxide dismutase (SOD), and glutathione peroxidase (GSH-Px) activity at 3 h after injection (p < 0.05); the LPS group had a higher content of Interleukin (IL)-1β, IL-6, and tumor necrosis factor-α (TNF)-α, but a lower content of IL-10 than the CON group in serum (p < 0.05). Compared with the LPS group, the MR1 diet increased catalase (CAT), SOD, and T-AOC, and the MR2 diet increased SOD and T-AOC at 3 h after injection in serum (p < 0.05). Only MR2 group displayed a significantly decreased liver histopathological score (p < 0.05) at 3 h, while MR1 and MR2 groups did so at 8 h. Both MR diets significantly decreased serum LPS, CORT, IL-1β, IL-6, and TNF-α contents, but increased IL-10 content (p < 0.05). Moreover, the MR1 group displayed significantly increased expression of nuclear factor erythroid 2-related factor 2 (Nrf2), CAT, and GSH-Px at 3 h; the MR2 group had a higher expression of Kelch-like ECH-associated protein 1 (Keap1), SOD, and GSH-Px at 8 h (p < 0.05). In summary, MR can improve antioxidant capacity, immunological stress, and liver health in LPS-challenged broilers. The MR1 and MR2 groups experienced similar effects on relieving stress; however, MR1 alleviated oxidative stress more rapidly. It is suggested that precise regulation of methionine levels in poultry with stress may improve the immunity of broilers, reduce feed production costs, and increase production efficiency in the poultry industry.
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Affiliation(s)
- Xiyuan Pang
- College of Animal Sciences, Shanxi Agricultural University, Taigu, China
| | - Zhiqiang Miao
- College of Animal Sciences, Shanxi Agricultural University, Taigu, China
| | - Yuanyang Dong
- College of Animal Sciences, Shanxi Agricultural University, Taigu, China
| | - Huiyu Cheng
- College of Animal Sciences, Shanxi Agricultural University, Taigu, China
| | - Xiangqi Xin
- College of Animal Sciences, Shanxi Agricultural University, Taigu, China
| | - Yuan Wu
- College of Animal Sciences, Shanxi Agricultural University, Taigu, China
| | - Miaomiao Han
- College of Animal Sciences, Shanxi Agricultural University, Taigu, China
| | - Yuan Su
- College of Animal Sciences, Shanxi Agricultural University, Taigu, China
| | - Jianmin Yuan
- College of Animal Sciences and Technology, China Agricultural University, Beijing, China
| | - Yuxin Shao
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing, China
| | - Lei Yan
- New Hope Liuhe Co.,Ltd., Beijing, China
| | - Jianhui Li
- College of Animal Sciences, Shanxi Agricultural University, Taigu, China
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8
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The Association between Methionine Intake and Diabetes in Chinese Adults-Results from the China Health and Nutrition Survey. Nutrients 2022; 15:nu15010116. [PMID: 36615773 PMCID: PMC9823418 DOI: 10.3390/nu15010116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
This study aimed to evaluate the association between methionine intake and diabetes prevalence in Chinese adults and explore whether the association was source-specific. Data from 12,849 adults aged ≥20 years old were used from the China Health and Nutrition Survey during 1997-2011. Diabetes was diagnosed as self-reported and/or when blood tests results met the diagnostic criteria. A 3-day, 24-h recall was used to assess different sources of methionine. Multivariable mixed linear regression was used to examine the associations. Across the quartiles of total methionine intake, the odds ratio (ORs, 95% CI) of diabetes were 1.00, 1.49 (1.21 to 1.82), 1.72 (1.37 to 2.15), and 2.53 (1.97 to 3.23). In the subgroup analysis, similar trends were observed in both animal and plant methionine. There was a significant interaction between urbanization and diabetes. The positive association was only significant in those who lived in low or medium urbanization areas. The ORs (95% CI) were 1.00, 1.27 (0.85 to 1.88), 1.56 (1.01 to 2.39), and 1.79 (1.09 to 2.95) for medium urbanization, respectively. No interaction was identified when stratified by different methionine sources. In conclusion, methionine intake was positively associated with diabetes independent of food source, and it was modified by urbanization levels.
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9
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Effects of lifespan-extending interventions on cognitive healthspan. Expert Rev Mol Med 2022; 25:e2. [PMID: 36377361 DOI: 10.1017/erm.2022.36] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Ageing is known to be the primary risk factor for most neurodegenerative diseases, including Alzheimer's disease, Parkinson's disease and Huntington's disease. They are currently incurable and worsen over time, which has broad implications in the context of lifespan and healthspan extension. Adding years to life and even to physical health is suboptimal or even insufficient, if cognitive ageing is not adequately improved. In this review, we will examine how interventions that have the potential to extend lifespan in animals affect the brain, and if they would be able to thwart or delay the development of cognitive dysfunction and/or neurodegeneration. These interventions range from lifestyle (caloric restriction, physical exercise and environmental enrichment) through pharmacological (nicotinamide adenine dinucleotide precursors, resveratrol, rapamycin, metformin, spermidine and senolytics) to epigenetic reprogramming. We argue that while many of these interventions have clear potential to improve cognitive health and resilience, large-scale and long-term randomised controlled trials are needed, along with studies utilising washout periods to determine the effects of supplementation cessation, particularly in aged individuals.
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Zhang Y, Jelleschitz J, Grune T, Chen W, Zhao Y, Jia M, Wang Y, Liu Z, Höhn A. Methionine restriction - Association with redox homeostasis and implications on aging and diseases. Redox Biol 2022; 57:102464. [PMID: 36152485 PMCID: PMC9508608 DOI: 10.1016/j.redox.2022.102464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 08/26/2022] [Accepted: 08/30/2022] [Indexed: 10/31/2022] Open
Abstract
Methionine is an essential amino acid, involved in the promotion of growth, immunity, and regulation of energy metabolism. Over the decades, research has long focused on the beneficial effects of methionine supplementation, while data on positive effects of methionine restriction (MR) were first published in 1993. MR is a low-methionine dietary intervention that has been reported to ameliorate aging and aging-related health concomitants and diseases, such as obesity, type 2 diabetes, and cognitive disorders. In addition, MR seems to be an approach to prolong lifespan which has been validated extensively in various animal models, such as Caenorhabditis elegans, Drosophila, yeast, and murine models. MR appears to be associated with a reduction in oxidative stress via so far mainly undiscovered mechanisms, and these changes in redox status appear to be one of the underlying mechanisms for lifespan extension and beneficial health effects. In the present review, the association of methionine metabolism pathways with redox homeostasis is described. In addition, the effects of MR on lifespan, age-related implications, comorbidities, and diseases are discussed.
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Affiliation(s)
- Yuyu Zhang
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Julia Jelleschitz
- German Institute of Human Nutrition (DIfE) Potsdam-Rehbruecke, Department of Molecular Toxicology, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany
| | - Tilman Grune
- German Institute of Human Nutrition (DIfE) Potsdam-Rehbruecke, Department of Molecular Toxicology, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany; German Center for Diabetes Research (DZD), 85764, Muenchen-Neuherberg, Germany; NutriAct-Competence Cluster Nutrition Research Berlin-Potsdam, Nuthetal, Germany; German Center for Cardiovascular Research (DZHK), Berlin, Germany; Institute of Nutrition, University of Potsdam, Nuthetal, 14558, Germany
| | - Weixuan Chen
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yihang Zhao
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Mengzhen Jia
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yajie Wang
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zhigang Liu
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China; German Institute of Human Nutrition (DIfE) Potsdam-Rehbruecke, Department of Molecular Toxicology, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany.
| | - Annika Höhn
- German Institute of Human Nutrition (DIfE) Potsdam-Rehbruecke, Department of Molecular Toxicology, Arthur-Scheunert-Allee 114-116, 14558, Nuthetal, Germany; German Center for Diabetes Research (DZD), 85764, Muenchen-Neuherberg, Germany.
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Jin T. Fibroblast growth factor 21 and dietary interventions: what we know and what we need to know next. MEDICAL REVIEW (BERLIN, GERMANY) 2022; 2:524-530. [PMID: 37724164 PMCID: PMC10388781 DOI: 10.1515/mr-2022-0019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 08/10/2022] [Indexed: 09/20/2023]
Abstract
Dietary interventions include the change of dietary styles, such as fasting and dietary or nutrient restrictions; or the addition of plant-derived compounds (such as polyphenols known as curcumin, resveratrol, or anthocyanin, or other nutraceuticals) into the diet. During the past a few decades, large number of studies have demonstrated therapeutic activities of these dietary interventions on metabolic and other diseases in human subjects or various animal models. Mechanisms underlying those versatile therapeutic activities, however, remain largely unclear. Interestingly, recent studies have shown that fibroblast growth factor 21 (FGF21), a liver-derived hormone or hepatokine, mediates metabolic beneficial effects of certain dietary polyphenols as well as protein restriction. Here I have briefly summarized functions of FGF21, highlighted related dietary interventions, and presented literature discussions on role of FGF21 in mediating function of dietary polyphenol intervention and protein restriction. This is followed by presenting my perspective view, with the involvement of gut microbiota. It is anticipated that further breakthroughs in this field in the near future will facilitate conceptual merge of classical medicine and modern medicine.
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Affiliation(s)
- Tianru Jin
- Division of Advanced Diagnostics, Toronto General Hospital Research Institute, University Health Network, TorontoCanada
- Banting and Best Diabetes Centre, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada
- Department of Physiology, Temerty Faculty of Medicine, University of Toronto, TorontoCanada
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12
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Dietary Risk Factors and Eating Behaviors in Peripheral Arterial Disease (PAD). Int J Mol Sci 2022; 23:ijms231810814. [PMID: 36142725 PMCID: PMC9504787 DOI: 10.3390/ijms231810814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/10/2022] [Accepted: 09/13/2022] [Indexed: 11/17/2022] Open
Abstract
Dietary risk factors play a fundamental role in the prevention and progression of atherosclerosis and PAD (Peripheral Arterial Disease). The impact of nutrition, however, defined as the process of taking in food and using it for growth, metabolism and repair, remains undefined with regard to PAD. This article describes the interplay between nutrition and the development/progression of PAD. We reviewed 688 articles, including key articles, narrative and systematic reviews, meta-analyses and clinical studies. We analyzed the interaction between nutrition and PAD predictors, and subsequently created four descriptive tables to summarize the relationship between PAD, dietary risk factors and outcomes. We comprehensively reviewed the role of well-studied diets (Mediterranean, vegetarian/vegan, low-carbohydrate ketogenic and intermittent fasting diet) and prevalent eating behaviors (emotional and binge eating, night eating and sleeping disorders, anorexia, bulimia, skipping meals, home cooking and fast/ultra-processed food consumption) on the traditional risk factors of PAD. Moreover, we analyzed the interplay between PAD and nutritional status, nutrients, dietary patterns and eating habits. Dietary patterns and eating disorders affect the development and progression of PAD, as well as its disabling complications including major adverse cardiovascular events (MACE) and major adverse limb events (MALE). Nutrition and dietary risk factor modification are important targets to reduce the risk of PAD as well as the subsequent development of MACE and MALE.
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13
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Koehler FC, Fu CY, Späth MR, Hoyer-Allo KJR, Bohl K, Göbel H, Lackmann JW, Grundmann F, Osterholt T, Gloistein C, Steiner JD, Antebi A, Benzing T, Schermer B, Schwarz G, Burst V, Müller RU. A systematic analysis of diet-induced nephroprotection reveals overlapping changes in cysteine catabolism. Transl Res 2022; 244:32-46. [PMID: 35189406 DOI: 10.1016/j.trsl.2022.02.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 02/03/2022] [Accepted: 02/14/2022] [Indexed: 01/28/2023]
Abstract
Caloric Restriction (CR) extends lifespan and augments cellular stress-resistance from yeast to primates, making CR an attractive strategy for organ protection in the clinic. Translation of CR to patients is complex, due to problems regarding adherence, feasibility, and safety concerns in frail patients. Novel tailored dietary regimens, which modulate the dietary composition of macro- and micronutrients rather than reducing calorie intake promise similar protective effects and increased translatability. However, a direct head-to-head comparison to identify the most potent approach for organ protection, as well as overlapping metabolic consequences have not been performed. We systematically analyzed six dietary preconditioning protocols - fasting mimicking diet (FMD), ketogenic diet (KD), dietary restriction of branched chained amino acids (BCAA), two dietary regimens restricting sulfur-containing amino acids (SR80/100) and CR - in a rodent model of renal ischemia-reperfusion injury (IRI) to quantify diet-induced resilience in kidneys. Of the administered diets, FMD, SR80/100 and CR efficiently protect from kidney damage after IRI. Interestingly, these approaches show overlapping changes in oxidative and hydrogen sulfide (H2S)-dependent cysteine catabolism as a potential common mechanism of organ protection.
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Affiliation(s)
- Felix C Koehler
- Department II of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; CECAD, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - Chun-Yu Fu
- Institute of Biochemistry, Faculty of Mathematics and Natural Sciences, University of Cologne, Cologne, Germany
| | - Martin R Späth
- Department II of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; CECAD, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - K Johanna R Hoyer-Allo
- Department II of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; CECAD, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Katrin Bohl
- Department II of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; CECAD, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - Heike Göbel
- Institute for Pathology, Diagnostic and Experimental Nephropathology Unit, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Jan-Wilm Lackmann
- CECAD, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Franziska Grundmann
- Department II of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Thomas Osterholt
- Department II of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Claas Gloistein
- Department II of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Joachim D Steiner
- Department II of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Adam Antebi
- Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Thomas Benzing
- Department II of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; CECAD, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - Bernhard Schermer
- Department II of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; CECAD, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
| | - Günter Schwarz
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany; Institute of Biochemistry, Faculty of Mathematics and Natural Sciences, University of Cologne, Cologne, Germany.
| | - Volker Burst
- Department II of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Roman-Ulrich Müller
- Department II of Internal Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; CECAD, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany.
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14
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Trautman ME, Richardson NE, Lamming DW. Protein restriction and branched-chain amino acid restriction promote geroprotective shifts in metabolism. Aging Cell 2022; 21:e13626. [PMID: 35526271 PMCID: PMC9197406 DOI: 10.1111/acel.13626] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/13/2022] [Accepted: 04/21/2022] [Indexed: 01/20/2023] Open
Abstract
The proportion of humans suffering from age‐related diseases is increasing around the world, and creative solutions are needed to promote healthy longevity. Recent work has clearly shown that a calorie is not just a calorie—and that low protein diets are associated with reduced mortality in humans and promote metabolic health and extended lifespan in rodents. Many of the benefits of protein restriction on metabolism and aging are the result of decreased consumption of the three branched‐chain amino acids (BCAAs), leucine, isoleucine, and valine. Here, we discuss the emerging evidence that BCAAs are critical modulators of healthy metabolism and longevity in rodents and humans, as well as the physiological and molecular mechanisms that may drive the benefits of BCAA restriction. Our results illustrate that protein quality—the specific composition of dietary protein—may be a previously unappreciated driver of metabolic dysfunction and that reducing dietary BCAAs may be a promising new approach to delay and prevent diseases of aging.
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Affiliation(s)
- Michaela E. Trautman
- Department of Medicine University of Wisconsin‐Madison Madison Wisconsin USA
- William S. Middleton Memorial Veterans Hospital Madison Wisconsin USA
- Interdepartmental Graduate Program in Nutritional Sciences University of Wisconsin‐Madison Madison Wisconsin USA
| | - Nicole E. Richardson
- Department of Medicine University of Wisconsin‐Madison Madison Wisconsin USA
- William S. Middleton Memorial Veterans Hospital Madison Wisconsin USA
- Endocrinology and Reproductive Physiology Graduate Training Program University of Wisconsin‐Madison Madison Wisconsin USA
| | - Dudley W. Lamming
- Department of Medicine University of Wisconsin‐Madison Madison Wisconsin USA
- William S. Middleton Memorial Veterans Hospital Madison Wisconsin USA
- Endocrinology and Reproductive Physiology Graduate Training Program University of Wisconsin‐Madison Madison Wisconsin USA
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15
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Takeshita H, Yamamoto K. Tryptophan Metabolism and COVID-19-Induced Skeletal Muscle Damage: Is ACE2 a Key Regulator? Front Nutr 2022; 9:868845. [PMID: 35463998 PMCID: PMC9028463 DOI: 10.3389/fnut.2022.868845] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 03/07/2022] [Indexed: 12/15/2022] Open
Abstract
The severity of coronavirus disease 2019 (COVID-19) is characterized by systemic damage to organs, including skeletal muscle, due to excessive secretion of inflammatory cytokines. Clinical studies have suggested that the kynurenine pathway of tryptophan metabolism is selectively enhanced in patients with severe COVID-19. In addition to acting as a receptor for severe acute respiratory syndrome coronavirus 2, the causative virus of COVID-19, angiotensin converting enzyme 2 (ACE2) contributes to tryptophan absorption and inhibition of the renin-angiotensin system. In this article, we review previous studies to assess the potential for a link between tryptophan metabolism, ACE2, and skeletal muscle damage in patients with COVID-19.
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16
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FGF21 is required for protein restriction to extend lifespan and improve metabolic health in male mice. Nat Commun 2022; 13:1897. [PMID: 35393401 PMCID: PMC8991228 DOI: 10.1038/s41467-022-29499-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 03/17/2022] [Indexed: 12/12/2022] Open
Abstract
Dietary protein restriction is increasingly recognized as a unique approach to improve metabolic health, and there is increasing interest in the mechanisms underlying this beneficial effect. Recent work indicates that the hormone FGF21 mediates the metabolic effects of protein restriction in young mice. Here we demonstrate that protein restriction increases lifespan, reduces frailty, lowers body weight and adiposity, improves physical performance, improves glucose tolerance, and alters various metabolic markers within the serum, liver, and adipose tissue of wildtype male mice. Conversely, mice lacking FGF21 fail to exhibit metabolic responses to protein restriction in early life, and in later life exhibit early onset of age-related weight loss, reduced physical performance, increased frailty, and reduced lifespan. These data demonstrate that protein restriction in aging male mice exerts marked beneficial effects on lifespan and metabolic health and that a single metabolic hormone, FGF21, is essential for the anti-aging effect of this dietary intervention.
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17
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Shen J, Shan J, Zhong L, Liang B, Zhang D, Li M, Tang H. Dietary Phytochemicals that Can Extend Longevity by Regulation of Metabolism. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2022; 77:12-19. [PMID: 35025006 PMCID: PMC8756168 DOI: 10.1007/s11130-021-00946-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 12/15/2021] [Indexed: 06/14/2023]
Abstract
Diet provides energy and nutrition for human survival, and also provides various joy of taste. Extensive studies have shown that the major components of diet, such as protein, carbohydrate and fat, play important roles in regulating aging and longevity. Whether other dietary ingredients can help prevent aging and extend longevity is a very interesting question. Here based on recent findings, we discussed dietary plant ingredients that can extend longevity by regulation of metabolism, targeting TRP channels, mitophagy, senescence pathways and circadian rhythms. Better understanding of the detailed effects and mechanisms of dietary ingredients on longevity regulation, would be helpful for developing new intervention tools for preventing aging and aging related diseases.
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Affiliation(s)
- Jie Shen
- Department of Biomedical Engineering, College of Artificial Intelligence, Hangzhou Dianzi University, Hangzhou, 310018, China.
| | - Jianying Shan
- Department of Biomedical Engineering, College of Artificial Intelligence, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Lichao Zhong
- Department of Biomedical Engineering, College of Artificial Intelligence, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Boying Liang
- Department of Biomedical Engineering, College of Artificial Intelligence, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Dake Zhang
- Department of Biomedical Engineering, College of Artificial Intelligence, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Motao Li
- Department of Optoelectronic Information Science and Engineering, College of Science, Hangzhou Dianzi University, Hangzhou, 310018, China
| | - Hao Tang
- Department of Biomedical Engineering, College of Artificial Intelligence, Hangzhou Dianzi University, Hangzhou, 310018, China
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18
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Wallenius V, Elebring E, Casselbrant A, Laurenius A, le Roux CW, Docherty NG, Biörserud C, Björnfot N, Engström M, Marschall HU, Fändriks L. Glycemic Control and Metabolic Adaptation in Response to High-Fat versus High-Carbohydrate Diets-Data from a Randomized Cross-Over Study in Healthy Subjects. Nutrients 2021; 13:nu13103322. [PMID: 34684324 PMCID: PMC8538379 DOI: 10.3390/nu13103322] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/13/2021] [Accepted: 09/20/2021] [Indexed: 11/26/2022] Open
Abstract
Granular study of metabolic responses to alterations in the ratio of dietary macro-nutrients can enhance our understanding of how dietary modifications influence patients with impaired glycemic control. In order to study the effect of diets enriched in fat or carbohydrates, fifteen healthy, normal-weight volunteers received, in a cross-over design, and in a randomized unblinded order, two weeks of an iso-caloric high-fat diet (HFD: 60E% from fat) and a high-carbohydrate diet (HCD: 60E% from carbohydrates). A mixed meal test (MMT) was performed at the end of each dietary period to examine glucose clearance kinetics and insulin and incretin hormone levels, as well as plasma metabolomic profiles. The MMT induced almost identical glycemia and insulinemia following the HFD or HCD. GLP-1 levels were higher after the HFD vs. HCD, whereas GIP did not differ. The HFD, compared to the HCD, increased the levels of several metabolomic markers of risk for the development of insulin resistance, e.g., branched-chain amino acid (valine and leucine), creatine and α-hydroxybutyric acid levels. In normal-weight, healthy volunteers, two weeks of the HFD vs. HCD showed similar profiles of meal-induced glycemia and insulinemia. Despite this, the HFD showed a metabolomic pattern implying a risk for a metabolic shift towards impaired insulin sensitivity in the long run.
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Affiliation(s)
- Ville Wallenius
- Institute of Clinical Sciences, Department Surgery, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; (E.E.); (A.C.); (A.L.); (C.B.); (N.B.); (M.E.); (L.F.)
- Correspondence: ; Tel.: +46-733836749
| | - Erik Elebring
- Institute of Clinical Sciences, Department Surgery, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; (E.E.); (A.C.); (A.L.); (C.B.); (N.B.); (M.E.); (L.F.)
| | - Anna Casselbrant
- Institute of Clinical Sciences, Department Surgery, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; (E.E.); (A.C.); (A.L.); (C.B.); (N.B.); (M.E.); (L.F.)
| | - Anna Laurenius
- Institute of Clinical Sciences, Department Surgery, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; (E.E.); (A.C.); (A.L.); (C.B.); (N.B.); (M.E.); (L.F.)
| | - Carel W. le Roux
- Metabolic Medicine, School of Medicine, Conway Institute, University College Dublin, Dublin 4, Ireland; (C.W.l.R.); (N.G.D.)
| | - Neil G. Docherty
- Metabolic Medicine, School of Medicine, Conway Institute, University College Dublin, Dublin 4, Ireland; (C.W.l.R.); (N.G.D.)
| | - Christina Biörserud
- Institute of Clinical Sciences, Department Surgery, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; (E.E.); (A.C.); (A.L.); (C.B.); (N.B.); (M.E.); (L.F.)
| | - Niclas Björnfot
- Institute of Clinical Sciences, Department Surgery, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; (E.E.); (A.C.); (A.L.); (C.B.); (N.B.); (M.E.); (L.F.)
| | - My Engström
- Institute of Clinical Sciences, Department Surgery, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; (E.E.); (A.C.); (A.L.); (C.B.); (N.B.); (M.E.); (L.F.)
| | - Hanns-Ulrich Marschall
- Institute of Medicine, Department Molecular and Clinical Medicine, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden;
| | - Lars Fändriks
- Institute of Clinical Sciences, Department Surgery, Sahlgrenska Academy, University of Gothenburg, SE-413 45 Gothenburg, Sweden; (E.E.); (A.C.); (A.L.); (C.B.); (N.B.); (M.E.); (L.F.)
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19
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Neubauer C, Landecker H. A planetary health perspective on synthetic methionine. Lancet Planet Health 2021; 5:e560-e569. [PMID: 34390674 DOI: 10.1016/s2542-5196(21)00138-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 04/21/2021] [Accepted: 05/07/2021] [Indexed: 06/13/2023]
Abstract
Methionine is an amino acid that humans and farm animals must derive from food. This metabolite, a tightly regulated resource in ecosystems, has become a mass commodity in the global economy, with well over 1 million tons being produced annually from petroleum to fortify livestock feed. Viewed from the standpoint of planetary health, anthropogenic methionine synthesis is an important enabler of low-cost animal protein production, with interdependent but unexamined effects on human health and ecosystems. At a time when agrochemical engineering is shifting the way sulphur is assimilated and moves up our food chain, research suggests that dietary methionine restriction alone captures many healthspan benefits noted with calorie restriction. As such, methionine synthesis is an excellent exemplar of planetary scale anthropogenic activity that manifests at the molecular scale of cellular metabolism, with potential systemic effects on human health. In this Personal View we establish the scale and historical trajectory of the methionine industry and provide a preliminary model for tracing this amino acid through the food supply into the human body. We draw together insights across disparate publications of applied animal agriculture, human nutrition, and biomedical research to call for cross-disciplinary dialogue on responsible use of methionine-augmentation technologies.
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Affiliation(s)
- Cajetan Neubauer
- Institute of Arctic and Alpine Research, Colorado University, Boulder, CO, USA
| | - Hannah Landecker
- Department of Sociology and Institute for Society and Genetics, University of California, Los Angeles, CA, USA.
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20
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Hepowit NL, Macedo JKA, Young LEA, Liu K, Sun RC, MacGurn JA, Dickson RC. Enhancing lifespan of budding yeast by pharmacological lowering of amino acid pools. Aging (Albany NY) 2021; 13:7846-7871. [PMID: 33744865 PMCID: PMC8034917 DOI: 10.18632/aging.202849] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 01/21/2021] [Indexed: 04/20/2023]
Abstract
The increasing prevalence of age-related diseases and resulting healthcare insecurity and emotional burden require novel treatment approaches. Several promising strategies seek to limit nutrients and promote healthy aging. Unfortunately, the human desire to consume food means this strategy is not practical for most people but pharmacological approaches might be a viable alternative. We previously showed that myriocin, which impairs sphingolipid synthesis, increases lifespan in Saccharomyces cerevisiae by modulating signaling pathways including the target of rapamycin complex 1 (TORC1). Since TORC1 senses cellular amino acids, we analyzed amino acid pools and identified 17 that are lowered by myriocin treatment. Studying the methionine transporter, Mup1, we found that newly synthesized Mup1 traffics to the plasma membrane and is stable for several hours but is inactive in drug-treated cells. Activity can be restored by adding phytosphingosine to culture medium thereby bypassing drug inhibition, thus confirming a sphingolipid requirement for Mup1 activity. Importantly, genetic analysis of myriocin-induced longevity revealed a requirement for the Gtr1/2 (mammalian Rags) and Vps34-Pib2 amino acid sensing pathways upstream of TORC1, consistent with a mechanism of action involving decreased amino acid availability. These studies demonstrate the feasibility of pharmacologically inducing a state resembling amino acid restriction to promote healthy aging.
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Affiliation(s)
- Nathaniel L. Hepowit
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37240, USA
| | - Jessica K. A. Macedo
- Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, KY 40536, USA
- Markey Cancer Center, University of Kentucky, Lexington, KY 40536, USA
| | - Lyndsay E. A. Young
- Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, KY 40536, USA
| | - Ke Liu
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Sichuan University, Chengdu 610000, Sichuan, P. R. China
| | - Ramon C. Sun
- Markey Cancer Center, University of Kentucky, Lexington, KY 40536, USA
- Department of Neuroscience, University of Kentucky, Lexington, KY 40536, USA
| | - Jason A. MacGurn
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37240, USA
| | - Robert C. Dickson
- Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, KY 40536, USA
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21
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Tashiro Y, Han Q, Tan Y, Sugisawa N, Yamamoto J, Nishino H, Inubushi S, Sun YU, Lim H, Aoki T, Murakami M, Takahashi Y, Bouvet M, Hoffman RM. Oral Recombinant Methioninase Prevents Nonalcoholic Fatty Liver Disease in Mice on a High Fat Diet. In Vivo 2021; 34:979-984. [PMID: 32354883 DOI: 10.21873/invivo.11866] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 03/11/2020] [Accepted: 03/16/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND/AIM We have recently shown that oral recombinant methionase (o-rMETase) prevents obesity and diabetes onset in mice on a high-fat (HF) diet. The present study aimed to determine if o-rMETase can inhibit the onset of nonalcoholic fatty liver disease (NAFLD) onset in mice on a high-fat diet. MATERIALS AND METHODS Male C57BL/6J mice in the control group were fed a normal-fat diet (NFD) (+6.5% fat), and other mice were fed a high-fat (HF) diet (+34.3% fat). Then, the mice on the HF diet were divided into two dietary groups: i) HF+phosphate buffered saline (PBS) group, and ii) HF+o-rMETase group. RESULT The fatty change score in the livers of mice treated with HF+PBS increased to an average of 2.6 during the experimental period of 8 weeks. In contrast, the fatty change in the livers of mice on the HF+o-rMETase group had an average score of 0.92 (p=0.04, HF+PBS vs HF+o-rMETase). CONCLUSION o-rMETase inhibited the onset of NAFLD as well as prevented obesity and the onset of diabetes on a high-fat diet, offering a possibility of a new paradigm to prevent liver cirrhosis or liver cancer via NAFLD.
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Affiliation(s)
- Yoshihiko Tashiro
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of General and Gastroenterological Surgery, Showa University School of Medicine, Tokyo, Japan.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | | | | | - Norihiko Sugisawa
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Jun Yamamoto
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Hiroto Nishino
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Sachiko Inubushi
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Y U Sun
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Hyein Lim
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Takeshi Aoki
- Department of General and Gastroenterological Surgery, Showa University School of Medicine, Tokyo, Japan
| | - Masahiko Murakami
- Department of General and Gastroenterological Surgery, Showa University School of Medicine, Tokyo, Japan
| | - Yoshihisa Takahashi
- Department of Pathology, Graduate School of Medical Sciences, International University of Health and Welfare, Narita, Japan
| | - Michael Bouvet
- Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Robert M Hoffman
- AntiCancer Inc, San Diego, CA, U.S.A .,Department of Surgery, University of California, San Diego, CA, U.S.A
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22
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Tashiro Y, Han Q, Tan Y, Sugisawa N, Yamamoto J, Nishino H, Inubushi S, Sun YU, Zhu G, Lim H, Aoki T, Murakami M, Bouvet M, Hoffman RM. Oral Recombinant Methioninase Inhibits Diabetes Onset in Mice on a High-fat Diet. In Vivo 2021; 34:973-978. [PMID: 32354882 DOI: 10.21873/invivo.11865] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 01/21/2020] [Accepted: 01/24/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND/AIM We have recently shown that oral recombinant methionase (o-rMETase) prevents obesity in mice on a high-fat (HF) diet. The present study aimed to determine if o-rMETase can inhibit the onset of diabetes in mice on a HF diet. MATERIALS AND METHODS The mice on a HF diet were divided into two groups: 1) HF+phosphate buffered saline (PBS) group; 2) HF+o-rMETase group. RESULTS The blood glucose level in the HF+PBS group increased to average of 201 mg/dl during the experimental period of 8 weeks. In contrast, the blood glucose level in the HF+o-rMETase group maintained an average of 126 mg/dl (p<0.01, HF+PBS vs. HF+o-rMETase). The glucose tolerance test showed a significant increase in tolerance in the HF+o-rMETase group at 120 min after glucose injection compared to the HF+PBS group (p=0.04). Visceral adipose tissue was significantly less in the HF+o-rMETase group than the HF+PBS group (p=0.05). There was no difference in insulin levels, cholesterol or triglycerides between the HF+PBS and HF+o-rMETase groups. CONCLUSION o-rMETase inhibited the onset of diabetes as well as prevented obesity on a high-fat diet, offering a possibility of a new and easy-to-use alternative to severe dieting or insulin injections.
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Affiliation(s)
- Yoshihiko Tashiro
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of General and Gastroenterological Surgery, Showa University School of Medicine, Tokyo, Japan.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | | | | | - Norihiko Sugisawa
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Jun Yamamoto
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Hiroto Nishino
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Sachiko Inubushi
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Y U Sun
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Guangwei Zhu
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Hyein Lim
- Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Takeshi Aoki
- Department of General and Gastroenterological Surgery, Showa University School of Medicine, Tokyo, Japan
| | - Masahiko Murakami
- Department of General and Gastroenterological Surgery, Showa University School of Medicine, Tokyo, Japan
| | - Michael Bouvet
- Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Robert M Hoffman
- AntiCancer Inc, San Diego, CA, U.S.A. .,Department of Surgery, University of California, San Diego, CA, U.S.A
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23
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Le Couteur DG, Solon-Biet SM, Cogger VC, Ribeiro R, de Cabo R, Raubenheimer D, Cooney GJ, Simpson SJ. Branched chain amino acids, aging and age-related health. Ageing Res Rev 2020; 64:101198. [PMID: 33132154 DOI: 10.1016/j.arr.2020.101198] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/04/2020] [Accepted: 10/16/2020] [Indexed: 02/08/2023]
Abstract
Branched chain amino acids (BCAA: leucine, valine, isoleucine) have key physiological roles in the regulation of protein synthesis, metabolism, food intake and aging. Many studies report apparently inconsistent conclusions about the relationships between blood levels of BCAAs or dietary manipulation of BCAAs with age-related changes in body composition, sarcopenia, obesity, insulin and glucose metabolism, and aging biology itself. These divergent results can be resolved by consideration of the role of BCAAs as signalling molecules and the bidirectional mechanistic relationship between BCAAs and some aging phenotypes. The effects of BCAAs are also influenced by the background nutritional composition such as macronutrient ratios and imbalance with other amino acids. Understanding the interaction between BCAAs and other components of the diet may provide new opportunities for influencing age-related outcomes through manipulation of dietary BCAAs together with titration of macronutrient ratios and other amino acids.
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24
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Tashiro Y, Han Q, Tan Y, Sugisawa N, Yamamoto J, Nishino H, Inubushi S, Higuchi T, Aoki T, Murakami M, Hoffman RM. Oral Recombinant Methioninase Prevents Obesity in Mice on a High-fat Diet. In Vivo 2020; 34:489-494. [PMID: 32111745 DOI: 10.21873/invivo.11799] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 12/10/2019] [Accepted: 12/13/2019] [Indexed: 01/24/2023]
Abstract
BACKGROUND/AIM obesity is a world-wide recalcitrant problem leading to many diseases. Dietary methionine restriction (MR) has been shown to prevent obesity, but it is an onerous regimen. The present study aimed to determine the effects of oral recombinant methionase (o-rMETase), on preventing obesity in mice on a high-fat diet. MATERIALS AND METHODS Male C57BL/6J mice in the control group were fed a control diet (CD) (+6.5% fat) for 25 days, and others were fed a high-fat (HF) diet (+34.3% fat) for 25 days. Then, the mice were divided into three dietary groups: 1) HF + phosphate buffered saline (PBS) group; 2) HF + o-rMETase group; and 3) untreated non-HF group. RESULTS The mice on the CD increased in body weight by 14% during experimental period of 25 days; in contrast the mice in the HF+PBS group increased by 33%; however, the mice on the HF+o-rMETase group increased only by 14% (p=0.02, HF+PBS vs HF+o-rMETase). CONCLUSION The HF+ o-rMETase group had the same weight increase as untreated mice on a normal fat diet, demonstrating the potential for o-rMETase to eliminate the need for dieting to maintain normal body weight.
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Affiliation(s)
- Yoshihiko Tashiro
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of General and Gastroenterological Surgery, Showa University School of Medicine, Tokyo, Japan.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | | | | | - Norihiko Sugisawa
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Jun Yamamoto
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Hiroto Nishino
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Sachiko Inubushi
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Takashi Higuchi
- AntiCancer Inc, San Diego, CA, U.S.A.,Department of Surgery, University of California, San Diego, CA, U.S.A
| | - Takeshi Aoki
- Department of General and Gastroenterological Surgery, Showa University School of Medicine, Tokyo, Japan
| | - Masahiko Murakami
- Department of General and Gastroenterological Surgery, Showa University School of Medicine, Tokyo, Japan
| | - Robert M Hoffman
- AntiCancer Inc, San Diego, CA, U.S.A. .,Department of Surgery, University of California, San Diego, CA, U.S.A
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25
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Castellucci B, Barrea L, Laudisio D, Aprano S, Pugliese G, Savastano S, Colao A, Muscogiuri G. Improving sleep disturbances in obesity by nutritional strategies: review of current evidence and practical guide. Int J Food Sci Nutr 2020; 72:579-591. [PMID: 33238797 DOI: 10.1080/09637486.2020.1851659] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Over the past decades, there has been an increase in overweight and obesity worldwide rates in both in adult and children. In parallel, it has been reported a worsening of sleep duration and quality. Some studies have shown an association between obesity and sleep disturbances (SD) vice versa, subjects with obesity have a greater risk of SD. As well as SD influences diet, also food choices have been shown to influence various sleep-related variables, such as duration and quality. For this reason, nutrition could represent an important tool not only to lose weight but also to improve sleep in patients with obesity and sleep disturbances. Thus, the aim of this review is to provide an overview of the studies that assessed the association between obesity and SD and vice versa, highlighting possible nutritional advices as a tool to improve sleep in patients with obesity and sleep disturbances.
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Affiliation(s)
- Bianca Castellucci
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
| | - Luigi Barrea
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
| | - Daniela Laudisio
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
| | - Sara Aprano
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
| | - Gabriella Pugliese
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
| | - Silvia Savastano
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
| | - Annamaria Colao
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Cattedra Unesco "Educazione alla salute e allo sviluppo sostenibile", University Federico II, Naples, Italy
| | - Giovanna Muscogiuri
- Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy.,Centro Italiano per la cura e il Benessere del paziente con Obesità (C.I.B.O), Department of Clinical Medicine and Surgery, Endocrinology Unit, University Federico II, Naples, Italy
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26
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Pignatti C, D’Adamo S, Stefanelli C, Flamigni F, Cetrullo S. Nutrients and Pathways that Regulate Health Span and Life Span. Geriatrics (Basel) 2020; 5:geriatrics5040095. [PMID: 33228041 PMCID: PMC7709628 DOI: 10.3390/geriatrics5040095] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/10/2020] [Accepted: 11/17/2020] [Indexed: 02/07/2023] Open
Abstract
Both life span and health span are influenced by genetic, environmental and lifestyle factors. With the genetic influence on human life span estimated to be about 20–25%, epigenetic changes play an important role in modulating individual health status and aging. Thus, a main part of life expectance and healthy aging is determined by dietary habits and nutritional factors. Excessive or restricted food consumption have direct effects on health status. Moreover, some dietary interventions including a reduced intake of dietary calories without malnutrition, or a restriction of specific dietary component may promote health benefits and decrease the incidence of aging-related comorbidities, thus representing intriguing potential approaches to improve healthy aging. However, the relationship between nutrition, health and aging is still not fully understood as well as the mechanisms by which nutrients and nutritional status may affect health span and longevity in model organisms. The broad effect of different nutritional conditions on health span and longevity occurs through multiple mechanisms that involve evolutionary conserved nutrient-sensing pathways in tissues and organs. These pathways interacting each other include the evolutionary conserved key regulators mammalian target of rapamycin, AMP-activated protein kinase, insulin/insulin-like growth factor 1 pathway and sirtuins. In this review we provide a summary of the main molecular mechanisms by which different nutritional conditions, i.e., specific nutrient abundance or restriction, may affect health span and life span.
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Affiliation(s)
- Carla Pignatti
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy; (C.P.); (F.F.)
| | - Stefania D’Adamo
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, 40136 Bologna, Italy;
- Laboratory of Immunorheumatology and Tissue Regeneration, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Claudio Stefanelli
- Department for Life Quality Studies, Alma Mater Studiorum, University of Bologna, 47921 Rimini, Italy;
| | - Flavio Flamigni
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy; (C.P.); (F.F.)
| | - Silvia Cetrullo
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy; (C.P.); (F.F.)
- Correspondence: ; Tel.: +39-051-209-1241
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27
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Increased immunosuppression impairs tissue homeostasis with aging and age-related diseases. J Mol Med (Berl) 2020; 99:1-20. [PMID: 33025106 PMCID: PMC7782450 DOI: 10.1007/s00109-020-01988-7] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 09/21/2020] [Accepted: 09/29/2020] [Indexed: 01/10/2023]
Abstract
Abstract Chronic low-grade inflammation is a common hallmark of the aging process and many age-related diseases. There is substantial evidence that persistent inflammation is associated with a compensatory anti-inflammatory response which prevents excessive tissue damage. Interestingly, the inflammatory state encountered with aging, called inflammaging, is associated with the anti-inflammaging process. The age-related activation of immunosuppressive network includes an increase in the numbers of myeloid-derived suppressor cells (MDSC), regulatory T cells (Treg), and macrophages (Mreg/M2c). Immunosuppressive cells secrete several anti-inflammatory cytokines, e.g., TGF-β and IL-10, as well as reactive oxygen and nitrogen species (ROS/RNS). Moreover, immunosuppressive cells suppress the function of effector immune cells by catabolizing l-arginine and tryptophan through the activation of arginase 1 (ARG1) and indoleamine 2,3-dioxygenase (IDO), respectively. Unfortunately, the immunosuppressive armament also induces harmful bystander effects in neighboring cells by impairing host tissue homeostasis. For instance, TGF-β signaling can trigger many age-related degenerative changes, e.g., cellular senescence, fibrosis, osteoporosis, muscle atrophy, and the degeneration of the extracellular matrix. In addition, changes in the levels of ROS, RNS, and the metabolites of the kynurenine pathway can impair tissue homeostasis. This review will examine in detail the harmful effects of the immunosuppressive cells on host tissues. It seems that this age-related immunosuppression prevents inflammatory damage but promotes the tissue degeneration associated with aging and age-related diseases. Key messages • Low-grade inflammation is associated with the aging process and age-related diseases. • Persistent inflammation activates compensatory immunosuppression with aging. • The numbers of immunosuppressive cells increase with aging and age-related diseases. • Immunosuppressive mechanisms evoke harmful bystander effects in host tissues. • Immunosuppression promotes tissue degeneration with aging and age-related diseases.
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Abstract
Dietary proteins have been used for years to treat obesity. Body weight loss is beneficial when it concerns fat mass, but loss of fat free mass - especially muscle might be detrimental. This occurs because protein breakdown predominates over synthesis, thus administering anabolic dietary compounds like proteins might counter fat free mass loss while allowing for fat mass loss.Indeed, varying the quantity of proteins will decrease muscle anabolic response and increase hyperphagia in rodents fed a low protein diet; but it will favor lean mass maintenance and promote satiety, in certain age groups of humans fed a high protein diet. Beyond protein quantity, protein source is an important metabolic regulator: whey protein and plant based diets exercize favorable effects on the risk of developing obesity, body composition, metabolic parameters or fat free mass preservation of obese patients. Specific amino-acids like branched chain amino acids (BCAA), methionine, tryptophan and its metabolites, and glutamate can also positively influence parameters and complications of obesity especially in rodent models, with less studies translating this in humans.Tuning the quality and quantity of proteins or even specific amino-acids can thus be seen as a potential therapeutic intervention on the body composition, metabolic syndrome parameters and appetite regulation of obese patients. Since these effects vary across age groups and much of the data comes from murine models, long-term prospective studies modulating proteins and amino acids in the human diet are needed.
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Affiliation(s)
- Mathilde Simonson
- UNH, Unité de Nutrition Humaine, CHU Clermont-Ferrand, Service de Nutrition Clinique, CRNH Auvergne, INRA, Université Clermont Auvergne, 63000, Clermont-Ferrand, France
| | - Yves Boirie
- UNH, Unité de Nutrition Humaine, CHU Clermont-Ferrand, Service de Nutrition Clinique, CRNH Auvergne, INRA, Université Clermont Auvergne, 63000, Clermont-Ferrand, France.
| | - Christelle Guillet
- UNH, Unité de Nutrition Humaine, CHU Clermont-Ferrand, Service de Nutrition Clinique, CRNH Auvergne, INRA, Université Clermont Auvergne, 63000, Clermont-Ferrand, France
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29
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Dumas SN, Lamming DW. Next Generation Strategies for Geroprotection via mTORC1 Inhibition. J Gerontol A Biol Sci Med Sci 2020; 75:14-23. [PMID: 30794726 DOI: 10.1093/gerona/glz056] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Indexed: 01/10/2023] Open
Abstract
Inhibition of mTORC1 (mechanistic Target Of Rapamycin Complex 1) with the pharmaceutical rapamycin prolongs the lifespan and healthspan of model organisms including rodents, with evidence now emerging that rapamycin and its analogs may also have rejuvenative effects in dogs and humans. However, the side effects associated with long-term rapamycin treatment, many of which are due to inhibition of a second mTOR complex, mTORC2, have seemed to preclude the routine use of rapamycin as a therapy for age-related diseases. Here, we discuss recent findings suggesting that strong, chronic inhibition of both mTOR complexes may not be necessary to realize the geroprotective effects of rapamycin. Instead, modestly but specifically inhibiting mTORC1 via a variety of emerging techniques, including intermittent or transient treatment with rapamycin derivatives, or specific dietary regimens, may be sufficient to promote health and longevity with reduced side effects. We will also discuss prospects for the development of new molecules that, by harnessing the detailed molecular understanding of mTORC1 signaling developed over the last decade, will provide new routes to the selective inhibition of mTORC1. We conclude that therapies based on the selective inhibition of mTORC1 may soon permit the safer treatment of diseases of aging.
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Affiliation(s)
- Sabrina N Dumas
- William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin.,Department of Medicine, University of Wisconsin-Madison
| | - Dudley W Lamming
- William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin.,Department of Medicine, University of Wisconsin-Madison
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30
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Zou K, Rouskin S, Dervishi K, McCormick MA, Sasikumar A, Deng C, Chen Z, Kaeberlein M, Brem RB, Polymenis M, Kennedy BK, Weissman JS, Zheng J, Ouyang Q, Li H. Life span extension by glucose restriction is abrogated by methionine supplementation: Cross-talk between glucose and methionine and implication of methionine as a key regulator of life span. SCIENCE ADVANCES 2020; 6:eaba1306. [PMID: 32821821 PMCID: PMC7406366 DOI: 10.1126/sciadv.aba1306] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 06/22/2020] [Indexed: 05/03/2023]
Abstract
Caloric restriction (CR) is known to extend life span across species; however, the molecular mechanisms are not well understood. We investigate the mechanism by which glucose restriction (GR) extends yeast replicative life span, by combining ribosome profiling and RNA-seq with microfluidic-based single-cell analysis. We discovered a cross-talk between glucose sensing and the regulation of intracellular methionine: GR down-regulated the transcription and translation of methionine biosynthetic enzymes and transporters, leading to a decreased intracellular methionine concentration; external supplementation of methionine cancels the life span extension by GR. Furthermore, genetic perturbations that decrease methionine synthesis/uptake extend life span. These observations suggest that intracellular methionine mediates the life span effects of various nutrient and genetic perturbations, and that the glucose-methionine cross-talk is a general mechanism for coordinating the nutrient status and the translation/growth of a cell. Our work also implicates proteasome as a downstream effector of the life span extension by GR.
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Affiliation(s)
- Ke Zou
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA 94158, USA
- The State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, School of Physics, Peking University, Beijing, China
- Peking-Tsinghua Center for Life Sciences at Center for Quantitative Biology, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Silvia Rouskin
- Department of Cellular and Molecular Pharmacology, University of California, San Francisco, California Institute for Quantitative Biomedical Research and Howard Hughes Medical Institute, San Francisco, CA 94158, USA
| | | | - Mark A. McCormick
- Department of Biochemistry and Molecular Biology, School of Medicine, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
- Autophagy Inflammation and Metabolism Center of Biomedical Research Excellence, Albuquerque, NM 87131, USA
| | | | - Changhui Deng
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Zhibing Chen
- Department of Physical Therapy and Rehabilitation Science, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Matt Kaeberlein
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Rachel B. Brem
- Buck Institute for Research on Aging, Novato, CA 94945, USA
| | - Michael Polymenis
- Department of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, USA
| | - Brian K. Kennedy
- Buck Institute for Research on Aging, Novato, CA 94945, USA
- Departments of Biochemistry and Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Centre for Healthy Longevity, National University Health System, Singapore
- Singapore Institute for Clinical Sciences, A*STAR, Singapore
| | - Jonathan S. Weissman
- Department of Cellular and Molecular Pharmacology, University of California, San Francisco, California Institute for Quantitative Biomedical Research and Howard Hughes Medical Institute, San Francisco, CA 94158, USA
| | - Jiashun Zheng
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Qi Ouyang
- The State Key Laboratory for Artificial Microstructures and Mesoscopic Physics, School of Physics, Peking University, Beijing, China
- Peking-Tsinghua Center for Life Sciences at Center for Quantitative Biology, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Hao Li
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA 94158, USA
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31
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Barré BP, Hallin J, Yue JX, Persson K, Mikhalev E, Irizar A, Holt S, Thompson D, Molin M, Warringer J, Liti G. Intragenic repeat expansion in the cell wall protein gene HPF1 controls yeast chronological aging. Genome Res 2020; 30:697-710. [PMID: 32277013 PMCID: PMC7263189 DOI: 10.1101/gr.253351.119] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 04/09/2020] [Indexed: 01/02/2023]
Abstract
Aging varies among individuals due to both genetics and environment, but the underlying molecular mechanisms remain largely unknown. Using a highly recombined Saccharomyces cerevisiae population, we found 30 distinct quantitative trait loci (QTLs) that control chronological life span (CLS) in calorie-rich and calorie-restricted environments and under rapamycin exposure. Calorie restriction and rapamycin extended life span in virtually all genotypes but through different genetic variants. We tracked the two major QTLs to the cell wall glycoprotein genes FLO11 and HPF1 We found that massive expansion of intragenic tandem repeats within the N-terminal domain of HPF1 was sufficient to cause pronounced life span shortening. Life span impairment by HPF1 was buffered by rapamycin but not by calorie restriction. The HPF1 repeat expansion shifted yeast cells from a sedentary to a buoyant state, thereby increasing their exposure to surrounding oxygen. The higher oxygenation altered methionine, lipid, and purine metabolism, and inhibited quiescence, which explains the life span shortening. We conclude that fast-evolving intragenic repeat expansions can fundamentally change the relationship between cells and their environment with profound effects on cellular lifestyle and longevity.
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Affiliation(s)
| | - Johan Hallin
- Université Côte d'Azur, CNRS, INSERM, IRCAN, 06107 Nice, France
| | - Jia-Xing Yue
- Université Côte d'Azur, CNRS, INSERM, IRCAN, 06107 Nice, France
| | - Karl Persson
- Department of Chemistry and Molecular Biology, University of Gothenburg, 41390 Gothenburg, Sweden
| | | | | | - Sylvester Holt
- Université Côte d'Azur, CNRS, INSERM, IRCAN, 06107 Nice, France
| | - Dawn Thompson
- Ginkgo Bioworks Incorporated, Boston, Massachusetts 02210, USA
| | - Mikael Molin
- Department of Biology and Biological Engineering, Chalmers University of Technology, 41296 Gothenburg, Sweden
| | - Jonas Warringer
- Department of Chemistry and Molecular Biology, University of Gothenburg, 41390 Gothenburg, Sweden
| | - Gianni Liti
- Université Côte d'Azur, CNRS, INSERM, IRCAN, 06107 Nice, France
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32
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Späth MR, Koehler FC, Hoyer-Allo KJR, Grundmann F, Burst V, Müller RU. Preconditioning strategies to prevent acute kidney injury. F1000Res 2020; 9:F1000 Faculty Rev-237. [PMID: 32269763 PMCID: PMC7135682 DOI: 10.12688/f1000research.21406.1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/20/2020] [Indexed: 02/06/2023] Open
Abstract
Acute kidney injury is a common clinical disorder resulting in significantly increased morbidity and mortality. However, despite extensive research, strategies for prevention or treatment are still lacking in routine clinical practice. Already decades ago, several preconditioning strategies (e. g. ischemic/hypoxic preconditioning and calorie restriction) have been published and their extraordinary effectiveness - especially in rodents - has raised the hope for powerful clinical tools to prevent acute kidney injury. However, the underlying mechanisms are still not completely understood and translation to the clinics has not been successful yet. In this review, the most attractive strategies and the current mechanistic concepts are introduced and discussed. Furthermore, we present clinical trials evaluating the feasibility of preconditioning in the clinical setting.
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Affiliation(s)
- Martin Richard Späth
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, NRW, 50937, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, NRW, 50931, Germany
| | - Felix Carlo Koehler
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, NRW, 50937, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, NRW, 50931, Germany
| | - Karla Johanna Ruth Hoyer-Allo
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, NRW, 50937, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, NRW, 50931, Germany
| | - Franziska Grundmann
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, NRW, 50937, Germany
| | - Volker Burst
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, NRW, 50937, Germany
| | - Roman-Ulrich Müller
- Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, NRW, 50937, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, NRW, 50931, Germany
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33
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Affiliation(s)
- Peter B Soeters
- Department of Surgery, Academic Hospital Maastricht, Maastricht, Netherlands
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34
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von Frieling J, Roeder T. Factors that affect the translation of dietary restriction into a longer life. IUBMB Life 2019; 72:814-824. [PMID: 31889425 DOI: 10.1002/iub.2224] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 12/20/2019] [Indexed: 02/06/2023]
Abstract
Nutritional interventions, such as dietary or calorie restriction, are known to have a variety of health-promoting effects. The most impressive are the direct effects on life expectancy, which have been reproduced in many animal models. A variety of dietary restriction protocols have been described, which differ either in their macronutrient composition or in the time window for consumption. Mechanistically, the effects of dietary restriction are mediated mainly through signaling pathways that have central roles in the maintenance of cellular energy balance. Among these, target of rapamycin and insulin signaling appear to be the most important. Such nutritional interventions can have their effects in two different ways: either by direct interaction with the metabolism of the host organism, or by modulating the composition and performance of its endogenous microbiome. Various dietary restriction regimens have been identified that significantly alter the microbiome and thus profoundly modulate host metabolism. This review aims to discuss the mechanisms by which dietary restriction can affect life expectancy, and in particular the role of the microbiome.
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Affiliation(s)
- Jakob von Frieling
- Department of Zoology, Molecular Physiology, Kiel University, Kiel, Germany
| | - Thomas Roeder
- Department of Zoology, Molecular Physiology, Kiel University, Kiel, Germany.,DZL, German Center for Lung Research, ARCN, Kiel, Germany
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35
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Hatle JD, Karjasevic A, Rehfeldt E, Nagle FS, Milano LJ, Patel S, Hiatt D, McCue MD. Life-extending dietary restriction, but not dietary supplementation of branched-chain amino acids, can increase organismal oxidation rates of individual branched-chain amino acids by grasshoppers. ACTA ACUST UNITED AC 2019; 5:209-223. [PMID: 31984246 PMCID: PMC6971830 DOI: 10.3233/nha-190073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND: Life-extending dietary restriction increases energy demands. Branched-chain amino acids (BCAAs), at high levels, may be detrimental to healthspan by activating the mechanistic Target of Rapamycin (mTOR). Whether organismal oxidation of BCAAs increases upon dietary restriction is unknown. OBJECTIVE: Test whether dietary restriction (DR, which creates an energy deficit) or supplemental dietary BCAAs (superfluous BCAAs) increases oxidation of BCAAs, potentially reducing their levels to improve healthspan. METHODS: Grasshoppers were reared to middle-age on one of four diets, each a level of lettuce feeding and a force-fed solution: 1) ad libitum lettuce & buffer, 2) ad libitum lettuce & supplemental BCAAs, 3) DR lettuce & buffer, and 4) DR lettuce & supplemental BCAAs. On trial days, grasshoppers were force-fed one 13C-1-BCAA (isoleucine, leucine, or valine). Breath was collected and tested for 13CO2, which represents organismal oxidation of the amino acid. Additional trials re-tested oxidation of leucine (the most potent activator of mTOR) in both females and males on dietary restriction. RESULTS: Dietary restriction generally increased cumulative oxidation of each BCAA in females and hungry males over ∼8 hr. Results were consistent for isoleucine and valine, but less so for leucine. Supplementation of BCAAs, in combination with dietary restriction, increased isoleucine in hemolymph, with similar trends for leucine and valine. Despite this, supplementation of BCAAs did not alter oxidation of any BCAAs. CONCLUSIONS: Dietary restriction can increase oxidation of BCAAs, likely due to an energy deficit. The increased oxidation may decrease available BCAAs for activation of mTOR and improve healthspan.
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Affiliation(s)
- J D Hatle
- Department of Biology, University of North Florida, Jacksonville, FL, USA
| | - A Karjasevic
- Department of Biology, University of North Florida, Jacksonville, FL, USA
| | - E Rehfeldt
- Department of Biology, University of North Florida, Jacksonville, FL, USA
| | - F S Nagle
- Department of Biology, University of North Florida, Jacksonville, FL, USA
| | - L J Milano
- Department of Biology, University of North Florida, Jacksonville, FL, USA
| | - S Patel
- Department of Biology, University of North Florida, Jacksonville, FL, USA
| | - D Hiatt
- Department of Biology, University of North Florida, Jacksonville, FL, USA
| | - M D McCue
- Sable Systems International, North Las Vegas, NV, USA
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Metabolic and Vascular Effect of the Mediterranean Diet. Int J Mol Sci 2019; 20:ijms20194716. [PMID: 31547615 PMCID: PMC6801699 DOI: 10.3390/ijms20194716] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 09/18/2019] [Accepted: 09/21/2019] [Indexed: 12/17/2022] Open
Abstract
Several studies indicated how dietary patterns that were obtained from nutritional cluster analysis can predict disease risk or mortality. Low-grade chronic inflammation represents a background pathogenetic mechanism linking metabolic risk factors to increased risk of chronic degenerative diseases. A Mediterranean diet (MeDi) style has been reported as associated with a lower degree of inflammation biomarkers and with a protective role on cardiovascular and cerebrovascular events. There is heterogeneity in defining the MedDiet, and it can, owing to its complexity, be considered as an exposome with thousands of nutrients and phytochemicals. Recently, it has been reported a novel positive association between baseline plasma ceramide concentrations and cardiovascular events and how adherence to a Mediterranean Diet-style may influence the potential negative relationship between elevated plasma ceramide concentrations and cardiovascular diseases (CVD). Several randomized controlled trials (RCTs) showed the positive effects of the MeDi diet style on several cardiovascular risk factors, such as body mass index, waist circumference, blood lipids, blood pressure, inflammatory markers and adhesion molecules, and diabetes and how these advantages of the MeDi are maintained in comparison of a low-fat diet. Some studies reported a positive effect of adherence to a Mediterranean Diet and heart failure incidence, whereas some recent studies, such as the PREDIMED study, showed that the incidence of major cardiovascular events was lower among those assigned to MeDi supplemented with extra-virgin olive oil or nuts than among those assigned to a reduced-fat diet. New studies are needed to better understand the molecular mechanisms, whereby the MedDiet may exercise its effects. Here, we present recent advances in understanding the molecular basis of MedDiet effects, mainly focusing on cardiovascular diseases, but also discussing other related diseases. We review MedDiet composition and assessment as well as the latest advances in the genomic, epigenomic (DNA methylation, histone modifications, microRNAs, and other emerging regulators), transcriptomic (selected genes and whole transcriptome), and metabolomic and metagenomic aspects of the MedDiet effects (as a whole and for its most typical food components). We also present a review of the clinical effects of this dietary style underlying the biochemical and molecular effects of the Mediterranean diet. Our purpose is to review the main features of the Mediterranean diet in particular its benefits on human health, underling the anti-inflammatory, anti-oxidant and anti-atherosclerotic effects to which new knowledge about epigenetic and gut-microbiota relationship is recently added.
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Javed K, Bröer S. Mice Lacking the Intestinal and Renal Neutral Amino Acid Transporter SLC6A19 Demonstrate the Relationship between Dietary Protein Intake and Amino Acid Malabsorption. Nutrients 2019; 11:E2024. [PMID: 31470570 PMCID: PMC6770948 DOI: 10.3390/nu11092024] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 08/22/2019] [Accepted: 08/23/2019] [Indexed: 12/15/2022] Open
Abstract
Dietary protein restriction has beneficial impacts on metabolic health. B0AT1 (SLC6A19) is the major transporter of neutral amino acids at the intestinal epithelia and absorbs the bulk of the diet-derived neutral amino acids from the intestinal lumen. It also reabsorbs neutral amino acids in the renal proximal tubules. Mice lacking B0AT1 show cellular outcomes of protein restriction, such as high FGF21 levels and low mTORC1 activity. Moreover, they have improved glucose homeostasis and resist diet-induced obesity. In this study, we investigated the relationship between protein restriction and dietary protein intake in C57Bl6/J wild-type (wt) and SLC6A19-knockout (SLC6A19ko) mice. When SLC6A19ko mice were fed diets containing 5%, 25%, or 52% of their total calories derived from protein, no differences in food intake or weight gain were observed. All essential amino acids significantly positively correlated with increasing dietary casein content in the wt mice. The SLC6A19ko mice showed reduced postprandial levels of essential amino acids in plasma, particularly following high-protein diets. Upon fasting, essential amino acids were the same in the wt and SLC6A19ko mice due to reduced amino acid catabolism. Bacterial metabolites originating from amino acid fermentation correlated with the dietary protein content, but showed a complex profile in the blood of the SLC6A19ko mice. This study highlights the potential of SLC6A19 as a knock-out or inhibition target to induce protein restriction for the treatment of metabolic disorders.
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Affiliation(s)
- Kiran Javed
- Research School of Biology, The Australian National University, Canberra, ACT 2600, Australia
| | - Stefan Bröer
- Research School of Biology, The Australian National University, Canberra, ACT 2600, Australia.
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Abstract
Cardiovascular ageing and the atherosclerotic process begin very early in life, most likely in utero. They progress over decades of exposure to suboptimal or abnormal metabolic and hormonal risk factors, eventually culminating in very common, costly, and mostly preventable target-organ pathologies, including coronary heart disease, stroke, heart failure, aortic aneurysm, peripheral artery disease, and vascular dementia. In this Review, we discuss findings from preclinical and clinical studies showing that calorie restriction (CR), intermittent fasting, and adjusted diurnal rhythm of feeding, with adequate intake of specific macronutrients and micronutrients, are powerful interventions not only for the prevention of cardiovascular disease but also for slowing the accumulation of molecular damage leading to cardiometabolic dysfunction. Furthermore, we discuss the mechanisms through which a number of other nondietary interventions, such as regular physical activity, mindfulness-based stress-reduction exercises, and some CR-mimetic drugs that target pro-ageing pathways, can potentiate the beneficial effects of a healthy diet in promoting cardiometabolic health.
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Wang Z, Liang M, Li H, Cai L, He H, Wu Q, Yang L. l-Methionine activates Nrf2-ARE pathway to induce endogenous antioxidant activity for depressing ROS-derived oxidative stress in growing rats. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:4849-4862. [PMID: 31001831 DOI: 10.1002/jsfa.9757] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 04/08/2019] [Accepted: 04/10/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Methionine is an essential sulfur-containing amino acid. To elucidate the influence of l-methionine on activation of the nuclear factor erythroid 2-related factor 2-antioxidant responsive element (Nrf2-ARE) antioxidant pathway to stimulate the endogenous antioxidant activity for depressing reactive oxygen species (ROS)-derived oxidative stress, male Wistar rats were orally administered l-methionine daily for 14 days. RESULTS With the intake of l-methionine, Nrf2 was activated by l-methionine through depressing Keap1 and Cul3, resulting in upregulation of ARE-driven antioxidant expression (glutamate cysteine ligase catalytic subunit, glutamate cysteine ligase modulatory subunit, glutathione synthase (GS), catalase (CAT), superoxide dismutase (SOD), heme oxygenase 1, NAD(P)H:quinone oxidoreductase 1, glutathione reductase (GR), glutathione S-transferase (GST), glutathione peroxidase (GPx)) with increasing l-methionine availability. Upon activation of Nrf2, glutathione synthesis was increased through upregulated expression of methionine adenosyltransferase, S-adenosylhomocysteine hydrolase, cystathionine β-synthase, cystathionine γ-lyse, glutamate cysteine ligase (GCL) and GS, while hepatic expressions of methionine sulfoxide reductases (MsrA, MsrB2, MsrB3) and hepatic enzyme activities (CAT, SOD, GCL, GR, GST, GPx) were uniformly stimulated with increasing consumption of l-methionine. As a result, hepatic content of ROS and MDA were effectively reduced by l-methionine intake. CONCLUSION The present study demonstrates that methionine availability plays a critical role in activation of the Nrf2-ARE pathway to induce an endogenous antioxidant response for depressing ROS-derived oxidative stress, which is primarily attributed to the stimulation of methionine sulfoxide reductase expression and glutathione synthesis. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Zhengxuan Wang
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Mingcai Liang
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Hui Li
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Liang Cai
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Hongjuan He
- School of Life Science and Biotechnology, Harbin Institute of Technology, Harbin, China
| | - Qiong Wu
- School of Life Science and Biotechnology, Harbin Institute of Technology, Harbin, China
| | - Lin Yang
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
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40
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Nutritional Regulation of Gene Expression: Carbohydrate-, Fat- and Amino Acid-Dependent Modulation of Transcriptional Activity. Int J Mol Sci 2019; 20:ijms20061386. [PMID: 30893897 PMCID: PMC6470599 DOI: 10.3390/ijms20061386] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/12/2019] [Accepted: 03/13/2019] [Indexed: 12/21/2022] Open
Abstract
The ability to detect changes in nutrient levels and generate an adequate response to these changes is essential for the proper functioning of living organisms. Adaptation to the high degree of variability in nutrient intake requires precise control of metabolic pathways. Mammals have developed different mechanisms to detect the abundance of nutrients such as sugars, lipids and amino acids and provide an integrated response. These mechanisms include the control of gene expression (from transcription to translation). This review reports the main molecular mechanisms that connect nutrients’ levels, gene expression and metabolism in health. The manuscript is focused on sugars’ signaling through the carbohydrate-responsive element binding protein (ChREBP), the role of peroxisome proliferator-activated receptors (PPARs) in the response to fat and GCN2/activating transcription factor 4 (ATF4) and mTORC1 pathways that sense amino acid concentrations. Frequently, alterations in these pathways underlie the onset of several metabolic pathologies such as obesity, insulin resistance, type 2 diabetes, cardiovascular diseases or cancer. In this context, the complete understanding of these mechanisms may improve our knowledge of metabolic diseases and may offer new therapeutic approaches based on nutritional interventions and individual genetic makeup.
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Castaño-Martinez T, Schumacher F, Schumacher S, Kochlik B, Weber D, Grune T, Biemann R, McCann A, Abraham K, Weikert C, Kleuser B, Schürmann A, Laeger T. Methionine restriction prevents onset of type 2 diabetes in NZO mice. FASEB J 2019; 33:7092-7102. [PMID: 30841758 PMCID: PMC6529347 DOI: 10.1096/fj.201900150r] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Dietary methionine restriction (MR) is well known to reduce body weight by increasing energy expenditure (EE) and insulin sensitivity. An elevated concentration of circulating fibroblast growth factor 21 (FGF21) has been implicated as a potential underlying mechanism. The aims of our study were to test whether dietary MR in the context of a high-fat regimen protects against type 2 diabetes in mice and to investigate whether vegan and vegetarian diets, which have naturally low methionine levels, modulate circulating FGF21 in humans. New Zealand obese (NZO) mice, a model for polygenic obesity and type 2 diabetes, were placed on isocaloric high-fat diets (protein, 16 kcal%; carbohydrate, 52 kcal%; fat, 32 kcal%) that provided methionine at control (Con; 0.86% methionine) or low levels (0.17%) for 9 wk. Markers of glucose homeostasis and insulin sensitivity were analyzed. Among humans, low methionine intake and circulating FGF21 levels were investigated by comparing a vegan and a vegetarian diet to an omnivore diet and evaluating the effect of a short-term vegetarian diet on FGF21 induction. In comparison with the Con group, MR led to elevated plasma FGF21 levels and prevented the onset of hyperglycemia in NZO mice. MR-fed mice exhibited increased insulin sensitivity, higher plasma adiponectin levels, increased EE, and up-regulated expression of thermogenic genes in subcutaneous white adipose tissue. Food intake and fat mass did not change. Plasma FGF21 levels were markedly higher in vegan humans compared with omnivores, and circulating FGF21 levels increased significantly in omnivores after 4 d on a vegetarian diet. These data suggest that MR induces FGF21 and protects NZO mice from high-fat diet–induced glucose intolerance and type 2 diabetes. The normoglycemic phenotype in vegans and vegetarians may be caused by induced FGF21. MR akin to vegan and vegetarian diets in humans may offer metabolic benefits via increased circulating levels of FGF21 and merits further investigation.—Castaño-Martinez, T., Schumacher, F., Schumacher, S., Kochlik, B., Weber, D., Grune, T., Biemann, R., McCann, A., Abraham, K., Weikert, C., Kleuser, B., Schürmann, A., Laeger, T. Methionine restriction prevents onset of type 2 diabetes in NZO mice.
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Affiliation(s)
- Teresa Castaño-Martinez
- Department of Experimental Diabetology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany.,German Center for Diabetes Research, Munich-Neuherberg, Germany
| | - Fabian Schumacher
- Department of Molecular Biology, University of Duisburg-Essen, Essen, Germany.,Department of Toxicology, Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany
| | - Silke Schumacher
- Department of Experimental Diabetology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
| | - Bastian Kochlik
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany.,NutriAct-Competence Cluster Nutrition Research Berlin-Potsdam, Nuthetal, Germany
| | - Daniela Weber
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany.,NutriAct-Competence Cluster Nutrition Research Berlin-Potsdam, Nuthetal, Germany
| | - Tilman Grune
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany.,NutriAct-Competence Cluster Nutrition Research Berlin-Potsdam, Nuthetal, Germany
| | - Ronald Biemann
- Institute for Clinical Chemistry and Pathobiochemistry, Otto von Guericke University Magdeburg, Magdeburg, Germany
| | | | - Klaus Abraham
- Department of Food Safety, German Federal Institute for Risk Assessment, Berlin, Germany; and
| | - Cornelia Weikert
- Department of Food Safety, German Federal Institute for Risk Assessment, Berlin, Germany; and
| | - Burkhard Kleuser
- Department of Toxicology, Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany.,NutriAct-Competence Cluster Nutrition Research Berlin-Potsdam, Nuthetal, Germany
| | - Annette Schürmann
- Department of Experimental Diabetology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany.,German Center for Diabetes Research, Munich-Neuherberg, Germany.,Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany
| | - Thomas Laeger
- Department of Experimental Diabetology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany.,German Center for Diabetes Research, Munich-Neuherberg, Germany
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Zapata RC, Singh A, Pezeshki A, Chelikani PK. Tryptophan restriction partially recapitulates the age-dependent effects of total amino acid restriction on energy balance in diet-induced obese rats. J Nutr Biochem 2019; 65:115-127. [DOI: 10.1016/j.jnutbio.2018.12.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 12/07/2018] [Accepted: 12/12/2018] [Indexed: 11/30/2022]
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Pak HH, Cummings NE, Green CL, Brinkman JA, Yu D, Tomasiewicz JL, Yang SE, Boyle C, Konon EN, Ong IM, Lamming DW. The Metabolic Response to a Low Amino Acid Diet is Independent of Diet-Induced Shifts in the Composition of the Gut Microbiome. Sci Rep 2019; 9:67. [PMID: 30635612 PMCID: PMC6329753 DOI: 10.1038/s41598-018-37177-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 11/28/2018] [Indexed: 12/22/2022] Open
Abstract
Obesity and type 2 diabetes are increasing in prevalence around the world, and there is a clear need for new and effective strategies to promote metabolic health. A low protein (LP) diet improves metabolic health in both rodents and humans, but the mechanisms that underlie this effect remain unknown. The gut microbiome has recently emerged as a potent regulator of host metabolism and the response to diet. Here, we demonstrate that a LP diet significantly alters the taxonomic composition of the gut microbiome at the phylum level, altering the relative abundance of Actinobacteria, Bacteroidetes, and Firmicutes. Transcriptional profiling suggested that any impact of the microbiome on liver metabolism was likely independent of the microbiome-farnesoid X receptor (FXR) axis. We therefore tested the ability of a LP diet to improve metabolic health following antibiotic ablation of the gut microbiota. We found that a LP diet promotes leanness, increases energy expenditure, and improves glycemic control equally well in mice treated with antibiotics as in untreated control animals. Our results demonstrate that the beneficial effects of a LP diet on glucose homeostasis, energy balance, and body composition are unlikely to be mediated by diet-induced changes in the taxonomic composition of the gut microbiome.
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Affiliation(s)
- Heidi H Pak
- William S. Middleton Memorial Veterans Hospital, Madison, WI, USA
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA
- Interdisciplinary Graduate Program in Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, USA
| | - Nicole E Cummings
- William S. Middleton Memorial Veterans Hospital, Madison, WI, USA
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA
- Endocrinology and Reproductive Physiology Graduate Training Program, University of Wisconsin-Madison, Madison, WI, USA
| | - Cara L Green
- William S. Middleton Memorial Veterans Hospital, Madison, WI, USA
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Jacqueline A Brinkman
- William S. Middleton Memorial Veterans Hospital, Madison, WI, USA
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Deyang Yu
- William S. Middleton Memorial Veterans Hospital, Madison, WI, USA
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA
- Molecular and Environmental Toxicology Program, University of Wisconsin-Madison, Madison, WI, USA
| | | | - Shany E Yang
- William S. Middleton Memorial Veterans Hospital, Madison, WI, USA
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Colin Boyle
- William S. Middleton Memorial Veterans Hospital, Madison, WI, USA
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Elizabeth N Konon
- William S. Middleton Memorial Veterans Hospital, Madison, WI, USA
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Irene M Ong
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, WI, USA
- Department of Biostatistics and Medical Informatics, University of Wisconsin-Madison, Madison, WI, USA
- University of Wisconsin Carbone Comprehensive Cancer Center, University of Wisconsin, Madison, WI, USA
| | - Dudley W Lamming
- William S. Middleton Memorial Veterans Hospital, Madison, WI, USA.
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA.
- Interdisciplinary Graduate Program in Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, USA.
- Endocrinology and Reproductive Physiology Graduate Training Program, University of Wisconsin-Madison, Madison, WI, USA.
- Molecular and Environmental Toxicology Program, University of Wisconsin-Madison, Madison, WI, USA.
- University of Wisconsin Carbone Comprehensive Cancer Center, University of Wisconsin, Madison, WI, USA.
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Canfield CA, Bradshaw PC. Amino acids in the regulation of aging and aging-related diseases. TRANSLATIONAL MEDICINE OF AGING 2019. [DOI: 10.1016/j.tma.2019.09.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Green CL, Lamming DW. Regulation of metabolic health by essential dietary amino acids. Mech Ageing Dev 2019; 177:186-200. [PMID: 30044947 PMCID: PMC6333505 DOI: 10.1016/j.mad.2018.07.004] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 06/27/2018] [Accepted: 07/16/2018] [Indexed: 12/22/2022]
Abstract
Although the beneficial effects of calorie restriction (CR) on health and aging were first observed a century ago, the specific macronutrients and molecular processes that mediate the effect of CR have been heavily debated. Recently, it has become clear that dietary protein plays a key role in regulating both metabolic health and longevity, and that both the quantity and quality - the specific amino acid composition - of dietary protein mediates metabolic health. Here, we discuss recent findings in model organisms ranging from yeast to mice and humans regarding the influence of dietary protein as well as specific amino acids on metabolic health, and the physiological and molecular mechanisms which may mediate these effects. We then discuss recent findings which suggest that the restriction of specific dietary amino acids may be a potent therapy to treat or prevent metabolic syndrome. Finally, we discuss the potential for dietary restriction of specific amino acids - or pharmaceuticals which harness these same mechanisms - to promote healthy aging.
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Affiliation(s)
- Cara L Green
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA; William S. Middleton Memorial Veterans Hospital, Madison, WI, USA
| | - Dudley W Lamming
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA; William S. Middleton Memorial Veterans Hospital, Madison, WI, USA.
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Lamming DW, Bar-Peled L. Lysosome: The metabolic signaling hub. Traffic 2019; 20:27-38. [PMID: 30306667 PMCID: PMC6294686 DOI: 10.1111/tra.12617] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 09/17/2018] [Accepted: 10/07/2018] [Indexed: 12/27/2022]
Abstract
For the past five decades, the lysosome has been characterized as an unglamorous cellular recycling center. This notion has undergone a radical shift in the last 10 years, with new research revealing that this organelle serves as a major hub for metabolic signaling pathways. The discovery that master growth regulators, including the protein kinase mTOR (mechanistic target of rapamycin), make their home at the lysosomal surface has generated intense interest in the lysosome's key role in nutrient sensing and cellular homeostasis. The transcriptional networks required for lysosomal maintenance and function are just being unraveled and their connection to lysosome-based signaling pathways revealed. The catabolic and anabolic pathways that converge on the lysosome connect this organelle with multiple facets of cellular function; when these pathways are deregulated they underlie multiple human diseases, and promote cellular and organismal aging. Thus, understanding how lysosome-based signaling pathways function will not only illuminate the fascinating biology of this organelle but will also be critical in unlocking its therapeutic potentials.
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Affiliation(s)
- Dudley W. Lamming
- William S. Middleton Memorial Veterans Hospital, Madison, WI, USA
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Liron Bar-Peled
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
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47
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Yu D, Yang SE, Miller BR, Wisinski JA, Sherman DS, Brinkman JA, Tomasiewicz JL, Cummings NE, Kimple ME, Cryns VL, Lamming DW. Short-term methionine deprivation improves metabolic health via sexually dimorphic, mTORC1-independent mechanisms. FASEB J 2018; 32:3471-3482. [PMID: 29401631 PMCID: PMC5956241 DOI: 10.1096/fj.201701211r] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 01/22/2018] [Indexed: 12/28/2022]
Abstract
Obesity and diabetes are major challenges to global health, and there is an urgent need for interventions that promote weight loss. Dietary restriction of methionine promotes leanness and improves metabolic health in mice and humans. However, poor long-term adherence to this diet limits its translational potential. In this study, we develop a short-term methionine deprivation (MD) regimen that preferentially reduces fat mass, restoring normal body weight and glycemic control to diet-induced obese mice of both sexes. The benefits of MD do not accrue from calorie restriction, but instead result from increased energy expenditure. MD promotes increased energy expenditure in a sex-specific manner, inducing the fibroblast growth factor (Fgf)-21-uncoupling protein (Ucp)-1 axis only in males. Methionine is an agonist of the protein kinase mechanistic target of rapamycin complex (mTORC)-1, which has been proposed to play a key role in the metabolic response to amino acid-restricted diets. In our study, we used a mouse model of constitutive hepatic mTORC1 activity and demonstrate that suppression of hepatic mTORC1 signaling is not required for the metabolic effects of MD. Our study sheds new light on the mechanisms by which dietary methionine regulates metabolic health and demonstrates the translational potential of MD for the treatment of obesity and type 2 diabetes.-Yu, D., Yang, S. E., Miller, B. R., Wisinski, J. A., Sherman, D. S., Brinkman, J. A., Tomasiewicz, J. L., Cummings, N. E., Kimple, M. E., Cryns, V. L., Lamming, D. W. Short-term methionine deprivation improves metabolic health via sexually dimorphic, mTORC1-independent mechanisms.
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Affiliation(s)
- Deyang Yu
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin, USA
- Molecular and Environmental Toxicology Program, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Shany E. Yang
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin, USA
| | - Blake R. Miller
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin, USA
| | - Jaclyn A. Wisinski
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin, USA
- Department of Biology, University of Wisconsin-La Crosse, La Crosse, Wisconsin, USA
| | - Dawn S. Sherman
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin, USA
| | - Jacqueline A. Brinkman
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin, USA
| | - Jay L. Tomasiewicz
- William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin, USA
| | - Nicole E. Cummings
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin, USA
- Endocrinology and Reproductive Physiology Graduate Training Program, University of Wisconsin-Madison, Madison, Wisconsin, USA; and
| | - Michelle E. Kimple
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin, USA
- Endocrinology and Reproductive Physiology Graduate Training Program, University of Wisconsin-Madison, Madison, Wisconsin, USA; and
| | - Vincent L. Cryns
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Molecular and Environmental Toxicology Program, University of Wisconsin-Madison, Madison, Wisconsin, USA
- University of Wisconsin Carbone Cancer Center, Madison, Wisconsin, USA
| | - Dudley W. Lamming
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin, USA
- Molecular and Environmental Toxicology Program, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Endocrinology and Reproductive Physiology Graduate Training Program, University of Wisconsin-Madison, Madison, Wisconsin, USA; and
- University of Wisconsin Carbone Cancer Center, Madison, Wisconsin, USA
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Lewis KN, Rubinstein ND, Buffenstein R. A window into extreme longevity; the circulating metabolomic signature of the naked mole-rat, a mammal that shows negligible senescence. GeroScience 2018; 40:105-121. [PMID: 29679203 PMCID: PMC5964061 DOI: 10.1007/s11357-018-0014-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 03/15/2018] [Indexed: 12/23/2022] Open
Abstract
Mouse-sized naked mole-rats (Heterocephalus glaber), unlike other mammals, do not conform to Gompertzian laws of age-related mortality; adults show no age-related change in mortality risk. Moreover, we observe negligible hallmarks of aging with well-maintained physiological and molecular functions, commonly altered with age in other species. We questioned whether naked mole-rats, living an order of magnitude longer than laboratory mice, exhibit different plasma metabolite profiles, which could then highlight novel mechanisms or targets involved in disease and longevity. Using a comprehensive, unbiased metabolomics screen, we observe striking inter-species differences in amino acid, peptide, and lipid metabolites. Low circulating levels of specific amino acids, particularly those linked to the methionine pathway, resemble those observed during the fasting period at late torpor in hibernating ground squirrels and those seen in longer-lived methionine-restricted rats. These data also concur with metabolome reports on long-lived mutant mice, including the Ames dwarf mice and calorically restricted mice, as well as fruit flies, and even show similarities to circulating metabolite differences observed in young human adults when compared to older humans. During evolution, some of these beneficial nutrient/stress response pathways may have been positively selected in the naked mole-rat. These observations suggest that interventions that modify the aging metabolomic profile to a more youthful one may enable people to lead healthier and longer lives.
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Affiliation(s)
- Kaitlyn N Lewis
- Calico Life Sciences LLC, 1170 Veterans Blvd., South San Francisco, 94080, USA
| | - Nimrod D Rubinstein
- Calico Life Sciences LLC, 1170 Veterans Blvd., South San Francisco, 94080, USA
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Tosti V, Bertozzi B, Fontana L. Health Benefits of the Mediterranean Diet: Metabolic and Molecular Mechanisms. J Gerontol A Biol Sci Med Sci 2018; 73:318-326. [PMID: 29244059 PMCID: PMC7190876 DOI: 10.1093/gerona/glx227] [Citation(s) in RCA: 362] [Impact Index Per Article: 60.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Indexed: 12/13/2022] Open
Abstract
Consuming a Mediterranean diet rich in minimally processed plant foods has been associated with a reduced risk of developing multiple chronic diseases and increased life expectancy. Data from several randomized clinic trials have demonstrated a beneficial effect in the primary and secondary prevention of cardiovascular disease, type 2 diabetes, atrial fibrillation, and breast cancer. The exact mechanism by which an increased adherence to the traditional Mediterranean diet exerts its favorable effects is not known. However, accumulating evidence indicates that the five most important adaptations induced by the Mediterranean dietary pattern are: (a) lipid-lowering effect, (b) protection against oxidative stress, inflammation and platelet aggregation, (c) modification of hormones and growth factors involved in the pathogenesis of cancer, (d) inhibition of nutrient sensing pathways by specific amino acid restriction, and (e) gut microbiota-mediated production of metabolites influencing metabolic health. More studies are needed to understand how single modifications of nutrients typical of the Mediterranean diet interact with energy intake, energy expenditure, and the microbiome in modulating the key mechanisms that promote cellular, tissue, and organ health during aging.
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Affiliation(s)
- Valeria Tosti
- Department of Medicine, Division of Geriatrics and Nutritional Science, Washington University, St. Louis, Missouri
| | - Beatrice Bertozzi
- Department of Medicine, Division of Geriatrics and Nutritional Science, Washington University, St. Louis, Missouri
| | - Luigi Fontana
- Department of Medicine, Division of Geriatrics and Nutritional Science, Washington University, St. Louis, Missouri
- Department of Clinical and Experimental Sciences, Brescia University Medical School, Italy
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50
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Novel treatment strategies for chronic kidney disease: insights from the animal kingdom. Nat Rev Nephrol 2018; 14:265-284. [PMID: 29332935 DOI: 10.1038/nrneph.2017.169] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Many of the >2 million animal species that inhabit Earth have developed survival mechanisms that aid in the prevention of obesity, kidney disease, starvation, dehydration and vascular ageing; however, some animals remain susceptible to these complications. Domestic and captive wild felids, for example, show susceptibility to chronic kidney disease (CKD), potentially linked to the high protein intake of these animals. By contrast, naked mole rats are a model of longevity and are protected from extreme environmental conditions through mechanisms that provide resistance to oxidative stress. Biomimetic studies suggest that the transcription factor nuclear factor erythroid 2-related factor 2 (NRF2) offers protection in extreme environmental conditions and promotes longevity in the animal kingdom. Similarly, during months of fasting, immobilization and anuria, hibernating bears are protected from muscle wasting, azotaemia, thrombotic complications, organ damage and osteoporosis - features that are often associated with CKD. Improved understanding of the susceptibility and protective mechanisms of these animals and others could provide insights into novel strategies to prevent and treat several human diseases, such as CKD and ageing-associated complications. An integrated collaboration between nephrologists and experts from other fields, such as veterinarians, zoologists, biologists, anthropologists and ecologists, could introduce a novel approach for improving human health and help nephrologists to find novel treatment strategies for CKD.
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