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Salvador AF, Shyu CR, Parks EJ. Measurement of lipid flux to advance translational research: evolution of classic methods to the future of precision health. EXPERIMENTAL & MOLECULAR MEDICINE 2022; 54:1348-1353. [PMID: 36075949 PMCID: PMC9534914 DOI: 10.1038/s12276-022-00838-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/22/2022] [Accepted: 07/12/2022] [Indexed: 02/08/2023]
Abstract
Over the past 70 years, the study of lipid metabolism has led to important discoveries in identifying the underlying mechanisms of chronic diseases. Advances in the use of stable isotopes and mass spectrometry in humans have expanded our knowledge of target molecules that contribute to pathologies and lipid metabolic pathways. These advances have been leveraged within two research paths, leading to the ability (1) to quantitate lipid flux to understand the fundamentals of human physiology and pathology and (2) to perform untargeted analyses of human blood and tissues derived from a single timepoint to identify lipidomic patterns that predict disease. This review describes the physiological and analytical parameters that influence these measurements and how these issues will propel the coming together of the two fields of metabolic tracing and lipidomics. The potential of data science to advance these fields is also discussed. Future developments are needed to increase the precision of lipid measurements in human samples, leading to discoveries in how individuals vary in their production, storage, and use of lipids. New techniques are critical to support clinical strategies to prevent disease and to identify mechanisms by which treatments confer health benefits with the overall goal of reducing the burden of human disease. Personalized tracking of how lipid (fat) metabolism changes over time could lead to improvements in the diagnosis and treatment of several diseases. Elizabeth Parks and colleagues from the University of Missouri, Columbia, USA, discuss the ways in which researchers use stable isotope labeling to monitor the kinetics of fatty acids and other lipids in the body. Usually, lipid quantities are measured only at a single timepoint, however the tracking of lipid turnover over time provides further diagnostic information. Aided by new techniques such as high-throughput mass spectrometry and machine learning, researchers are now able to continuously map total lipid contents in individual patients. The transition of measurements of lipid flux from the research laboratory to the doctor’s office will likely play a role in a new era of precision medicine.
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Affiliation(s)
- Amadeo F Salvador
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, 65212, USA.,Department of Medicine, Division of Gastroenterology and Hepatology, School of Medicine, University of Missouri, Columbia, MO, 65212, USA.,Department of Electrical Engineering and Computer Science, Institute for Data Science and Informatics, University of Missouri, Columbia, MO, 65211, USA
| | - Chi-Ren Shyu
- Department of Electrical Engineering and Computer Science, Institute for Data Science and Informatics, University of Missouri, Columbia, MO, 65211, USA
| | - Elizabeth J Parks
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, 65212, USA. .,Department of Medicine, Division of Gastroenterology and Hepatology, School of Medicine, University of Missouri, Columbia, MO, 65212, USA.
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Zimetti F, De Vuono S, Gomaraschi M, Adorni MP, Favari E, Ronda N, Ricci MA, Veglia F, Calabresi L, Lupattelli G. Plasma cholesterol homeostasis, HDL remodeling and function during the acute phase reaction. J Lipid Res 2017; 58:2051-2060. [PMID: 28830907 DOI: 10.1194/jlr.p076463] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 08/19/2017] [Indexed: 12/18/2022] Open
Abstract
Acute phase reaction (APR) is a systemic inflammation triggered by several conditions associated with lipid profile alterations. We evaluated whether APR also associates with changes in cholesterol synthesis and absorption, HDL structure, composition, and cholesterol efflux capacity (CEC). We analyzed 59 subjects with APR related to infections, oncologic causes, or autoimmune diseases and 39 controls. We detected no difference in markers of cholesterol synthesis and absorption. Conversely, a significant reduction of LpA-I- and LpAI:AII-containing HDL (-28% and -44.8%, respectively) and of medium-sized HDL (-10.5%) occurred in APR. Total HDL CEC was impaired in APR subjects (-18%). Evaluating specific CEC pathways, we found significant reductions in CEC by aqueous diffusion and by the transporters scavenger receptor B-I and ABCG1 (-25.5, -41.1 and -30.4%, respectively). ABCA1-mediated CEC was not affected. Analyses adjusted for age and gender provided similar results. In addition, correcting for HDL-cholesterol (HDL-C) levels, the differences in aqueous diffusion total and ABCG1-CEC remained significant. APR subjects displayed higher levels of HDL serum amyloid A (+20-folds; P = 0.003). In conclusion, APR does not associate with cholesterol synthesis and absorption changes but with alterations of HDL composition and a marked impairment of HDL CEC, partly independent of HDL-C serum level reduction.
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Affiliation(s)
| | - Stefano De Vuono
- Department of Medicine, Internal Medicine, "Santa Maria della Misericordia" Hospital, University of Perugia, Perugia, Italy
| | - Monica Gomaraschi
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Centro E. Grossi Paoletti, Università degli Studi di Milano, Milano, Italy
| | | | - Elda Favari
- Department of Food and Drug, University of Parma, Parma, Italy
| | - Nicoletta Ronda
- Department of Food and Drug, University of Parma, Parma, Italy
| | - Maria Anastasia Ricci
- Department of Medicine, Internal Medicine, "Santa Maria della Misericordia" Hospital, University of Perugia, Perugia, Italy
| | | | - Laura Calabresi
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Centro E. Grossi Paoletti, Università degli Studi di Milano, Milano, Italy
| | - Graziana Lupattelli
- Department of Medicine, Internal Medicine, "Santa Maria della Misericordia" Hospital, University of Perugia, Perugia, Italy
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Martínez-Olmos MA, Peinó R, Prieto-Tenreiro A, Lage M, Nieto L, Lord T, Molina-Pérez E, Domínguez-Muñoz JE, Casanueva FF. Intestinal Absorption and Pancreatic Function are Preserved in Anorexia Nervosa Patients in Both a Severely Malnourished State and After Recovery. EUROPEAN EATING DISORDERS REVIEW 2013; 21:247-51. [DOI: 10.1002/erv.2223] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
| | | | - Alma Prieto-Tenreiro
- Endocrinology and Nutrition Division; Complejo Hospitalario Universitario de Santiago and Santiago de Compostela University; Spain
| | | | - Laura Nieto
- Gastroenterology Division; Complejo Hospitalario Universitario de Santiago and Santiago de Compostela University; Spain
| | - Teresa Lord
- Endocrinology and Nutrition Division; Complejo Hospitalario Universitario de Santiago and Santiago de Compostela University; Spain
| | - Esther Molina-Pérez
- Gastroenterology Division; Complejo Hospitalario Universitario de Santiago and Santiago de Compostela University; Spain
| | - Juan Enrique Domínguez-Muñoz
- Gastroenterology Division; Complejo Hospitalario Universitario de Santiago and Santiago de Compostela University; Spain
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Chiriac M, Lupan I, Popa F, Palibroda N, Popescu O. Enzymatic synthesis of some (15)N-labelled L-amino acids. ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES 2010; 46:249-254. [PMID: 20582794 DOI: 10.1080/10256016.2010.488509] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Our group has developed a stereospecific enzymatic method, which is very efficient for the in vitro synthesis of l-[(15)N]serine, l-[(15)N]methionine and l-[(15)N]glutamic acid. These amino acids were prepared from the corresponding alpha -ketoacids in the suitable enzymatic systems. The bacterial NAD-dependent amino acid dehydrogenases alanin dehydrogenase, leucin dehydrogenase and glutamate dehydrogenase were used as catalysts. Glucose dehydrogenase was used for the regeneration of NADH and (15)NH(4)Cl as isotopically labelled material at 99 at.% (15)N. All reactions are inexpensive and easy to perform on a synthetically useful scale (1-10g) giving high yields of l-amino acids. The (15)N isotope content was determined by mass spectrometry.
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Affiliation(s)
- Maria Chiriac
- National Institute for Research and Development of Isotopic and Molecular Technologies, Cluj-Napoca, Romania.
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13CO2 breath tests, a tool to assess intestinal and liver function in the ICU? Curr Opin Crit Care 2010; 16:169-75. [DOI: 10.1097/mcc.0b013e3283376739] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Vyroubal P, Chiarla C, Giovannini I, Hyspler R, Ticha A, Hrnciarikova D, Zadak Z. HYPOCHOLESTEROLEMIA IN CLINICALLY SERIOUS CONDITIONS - REVIEW. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2008; 152:181-9. [DOI: 10.5507/bp.2008.029] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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Chiriac M, Lupan I, Bucurenci N, Popescu O, Palibroda N. Stereoselective synthesis of L-[15N] amino acids with glucose dehydrogenase and galactose mutarotase as NADH regenerating system. J Labelled Comp Radiopharm 2008. [DOI: 10.1002/jlcr.1496] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Les traceurs isotopiques stables en nutrition humaine : que peut-on faire avec ? CAHIERS DE NUTRITION ET DE DIÉTÉTIQUE 2007. [DOI: 10.1016/s0007-9960(07)78166-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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