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Nanavare P, Sarkar S, Jena AB, Chakrabarti R. Osmolyte-induced conformational stabilization of a hydrophobic polymer. Phys Chem Chem Phys 2024; 26:24021-24040. [PMID: 39247939 DOI: 10.1039/d4cp01694g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/10/2024]
Abstract
Elucidating the mechanistic role of osmolytes on conformations of hydrophobic prototypical macromolecules in principle is the stepping stone towards understanding the effect of osmolytes on proteins. Motivated by this, we use equilibrium simulations and umbrella sampling techniques to dissect the underlying mechanism of osmolyte-induced conformational stability of a hydrophobic polymer. Our results unveil a remarkable osmolyte-dependent conformational stabilization of the polymer. In an aqueous solution of 4 M choline chloride (ChCl), the polymer has an even more compact structure than in water. On the other hand, an aqueous solution of 8 M urea stabilizes the extended state of the polymer. Interestingly, the polymer adopts an intermediate hairpin conformation in a mixed osmolyte solution of 4 M ChCl and 8 M urea in water due to the interplay of ChCl and urea. Our simulations identify the relative accumulation of water and the hydrophilic part of choline or preferential binding of urea near the collapsed and the extended states, respectively. Analyses split out the enthalpic and entropic contributions to the overall free energy. This decides the stabilization of the preferred conformation in the chosen osmolyte solution. Our simulations show that in an aqueous solution of ChCl, the hairpin state is stabilized by entropy gain. In contrast, the enthalpic contribution stabilizes the hairpin state in mixed environments. However, a collapsed state is energetically not favored in the presence of urea. In brief, via employing an in silico approach, the current findings indicate the importance of osmolytes in stabilizing the conformational states of hydrophobic polymers.
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Affiliation(s)
- Pooja Nanavare
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India.
| | - Soham Sarkar
- Eduard-Zintl-Institute für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Strasse 8, 64287 Darmstadt, Germany
| | - Abhijit Bijay Jena
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India.
| | - Rajarshi Chakrabarti
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India.
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2
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Prabutzki P, Schiller J, Engel KM. Phospholipid-derived lysophospholipids in (patho)physiology. Atherosclerosis 2024:118569. [PMID: 39227208 DOI: 10.1016/j.atherosclerosis.2024.118569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 07/17/2024] [Accepted: 08/21/2024] [Indexed: 09/05/2024]
Abstract
Phospholipids (PL) are major components of cellular membranes and changes in PL metabolism have been associated with the pathogenesis of numerous diseases. Lysophosphatidylcholine (LPC) in particular, is a comparably abundant component of oxidatively damaged tissues. LPC originates from the cleavage of phosphatidylcholine (PC) by phospholipase A2 or the reaction of lipids with reactive oxygen species (ROS) such as HOCl. Another explanation of increased LPC concentration is the decreased re-acylation of LPC into PC. While there are also several other lysophospholipids, LPC is the most abundant lysophospholipid in mammals and will therefore be the focus of this review. LPC is involved in many physiological processes. It induces the migration of lymphocytes, fostering the production of pro-inflammatory compounds by inducing oxidative stress. LPC also "signals" via G protein-coupled and Toll-like receptors and has been implicated in the development of different diseases. However, LPCs are not purely "bad": this is reflected by the fact that the concentration and fatty acyl composition of LPC varies under different conditions, in plasma of healthy and diseased individuals, in tissues and different tumors. Targeting LPC and lipid metabolism and restoring homeostasis might be a potential therapeutic method for inflammation-related diseases.
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Affiliation(s)
- Patricia Prabutzki
- Institute of Medical Physics and Biophysics, Faculty of Medicine, Leipzig University, Härtelstr. 16-18, D 04107 Leipzig, Germany
| | - Jürgen Schiller
- Institute of Medical Physics and Biophysics, Faculty of Medicine, Leipzig University, Härtelstr. 16-18, D 04107 Leipzig, Germany
| | - Kathrin M Engel
- Institute of Medical Physics and Biophysics, Faculty of Medicine, Leipzig University, Härtelstr. 16-18, D 04107 Leipzig, Germany.
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3
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Nemeth DV, Iannelli L, Gangitano E, D’Andrea V, Bellini MI. Energy Metabolism and Metformin: Effects on Ischemia-Reperfusion Injury in Kidney Transplantation. Biomedicines 2024; 12:1534. [PMID: 39062107 PMCID: PMC11275143 DOI: 10.3390/biomedicines12071534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 07/03/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
Metformin (MTF) is the only biguanide included in the World Health Organization's list of essential medicines; representing a widespread drug in the management of diabetes mellitus. With its accessibility and affordability being one of its biggest assets, it has become the target of interest for many trying to find alternative treatments for varied pathologies. Over time, an increasing body of evidence has shown additional roles of MTF, with unexpected interactions of benefit in other diseases. Metformin (MTF) holds significant promise in mitigating ischemia-reperfusion injury (IRI), particularly in the realm of organ transplantation. As acceptance criteria for organ transplants expand, IRI during the preservation phase remain a major concern within the transplant community, prompting a keen interest in MTF's effects. Emerging evidence suggests that administering MTF during reperfusion may activate the reperfusion injury salvage kinase (RISK) pathway. This pathway is pivotal in alleviating IRI in transplant recipients, potentially leading to improved outcomes such as reduced rates of organ rejection. This review aims to contextualize MTF historically, explore its current uses, pharmacokinetics, and pharmacodynamics, and link these aspects to the pathophysiology of IRI to illuminate its potential future role in transplantation. A comprehensive survey of the current literature highlights MTF's potential to recondition and protect against IRI by attenuating free radical damage, activating AMP-activated protein kinase to preserve cellular energy and promote repair, as well as directly reducing inflammation and enhancing microcirculation.
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Affiliation(s)
- Denise V. Nemeth
- School of Osteopathic Medicine, University of the Incarnate Word, San Antonio, TX 78235, USA
| | - Leonardo Iannelli
- Department of Surgery, Sapienza University of Rome, 00161 Rome, Italy
| | - Elena Gangitano
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy
| | - Vito D’Andrea
- Department of Surgery, Sapienza University of Rome, 00161 Rome, Italy
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4
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Hu Y, Zhang RQ, Liu SL, Wang ZG. In-situ quantification of lipids in live cells through imaging approaches. Biosens Bioelectron 2023; 240:115649. [PMID: 37678059 DOI: 10.1016/j.bios.2023.115649] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 08/03/2023] [Accepted: 08/29/2023] [Indexed: 09/09/2023]
Abstract
Lipids are important molecules that are widely distributed within the cell, and they play a crucial role in several biological processes such as cell membrane formation, signaling, cell motility and division. Monitoring the spatiotemporal dynamics of cellular lipids in real-time and quantifying their concentrations in situ is crucial since the local concentration of lipids initiates various signaling pathways that regulate cellular processes. In this review, we first introduced the historical background of lipid quantification methods. We then delve into the current state of the art of in situ lipid quantification, including the establishment and utility of fluorescence imaging techniques based on sensors of lipid-binding domains labeled with organic dyes or fluorescent proteins, and Raman and magnetic resonance imaging (MRI) techniques that do not require lipid labeling. Next, we highlighted the biological applications of live-cell lipid quantification techniques in the study of in situ lipid distribution, lipid transformation, and lipid-mediated signaling pathways. Finally, we discussed the technical challenges and prospects for the development of lipid quantification in live cells, with the aim of promoting the development of in situ lipid quantification in live cells, which may have a profound impact on the biological and medical fields.
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Affiliation(s)
- Yusi Hu
- State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Centre for New Organic Matter, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Centre for Analytical Sciences, College of Chemistry and School of Medicine, Nankai University, Tianjin, 300071, China
| | - Rui-Qiao Zhang
- Qingdao Academy of Agricultural Sciences, Qingdao, 266100, China
| | - Shu-Lin Liu
- State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Centre for New Organic Matter, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Centre for Analytical Sciences, College of Chemistry and School of Medicine, Nankai University, Tianjin, 300071, China.
| | - Zhi-Gang Wang
- State Key Laboratory of Medicinal Chemical Biology, Frontiers Science Centre for New Organic Matter, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Centre for Analytical Sciences, College of Chemistry and School of Medicine, Nankai University, Tianjin, 300071, China.
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5
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Ali O, Szabó A. Review of Eukaryote Cellular Membrane Lipid Composition, with Special Attention to the Fatty Acids. Int J Mol Sci 2023; 24:15693. [PMID: 37958678 PMCID: PMC10649022 DOI: 10.3390/ijms242115693] [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: 09/18/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
Biological membranes, primarily composed of lipids, envelop each living cell. The intricate composition and organization of membrane lipids, including the variety of fatty acids they encompass, serve a dynamic role in sustaining cellular structural integrity and functionality. Typically, modifications in lipid composition coincide with consequential alterations in universally significant signaling pathways. Exploring the various fatty acids, which serve as the foundational building blocks of membrane lipids, provides crucial insights into the underlying mechanisms governing a myriad of cellular processes, such as membrane fluidity, protein trafficking, signal transduction, intercellular communication, and the etiology of certain metabolic disorders. Furthermore, comprehending how alterations in the lipid composition, especially concerning the fatty acid profile, either contribute to or prevent the onset of pathological conditions stands as a compelling area of research. Hence, this review aims to meticulously introduce the intricacies of membrane lipids and their constituent fatty acids in a healthy organism, thereby illuminating their remarkable diversity and profound influence on cellular function. Furthermore, this review aspires to highlight some potential therapeutic targets for various pathological conditions that may be ameliorated through dietary fatty acid supplements. The initial section of this review expounds on the eukaryotic biomembranes and their complex lipids. Subsequent sections provide insights into the synthesis, membrane incorporation, and distribution of fatty acids across various fractions of membrane lipids. The last section highlights the functional significance of membrane-associated fatty acids and their innate capacity to shape the various cellular physiological responses.
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Affiliation(s)
- Omeralfaroug Ali
- Agrobiotechnology and Precision Breeding for Food Security National Laboratory, Institute of Physiology and Animal Nutrition, Department of Animal Physiology and Health, Hungarian University of Agriculture and Life Sciences, Guba Sándor Str. 40, 7400 Kaposvár, Hungary;
| | - András Szabó
- Agrobiotechnology and Precision Breeding for Food Security National Laboratory, Institute of Physiology and Animal Nutrition, Department of Animal Physiology and Health, Hungarian University of Agriculture and Life Sciences, Guba Sándor Str. 40, 7400 Kaposvár, Hungary;
- HUN-REN-MATE Mycotoxins in the Food Chain Research Group, Hungarian University of Agriculture and Life Sciences, Guba Sándor Str. 40, 7400 Kaposvár, Hungary
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Kang EY, Kim DY, Kim HK, Shin WS, Park YS, Kim TH, Kim W, Cao L, Lee SG, Gang G, Shin M, Kim JM, Go GW. Modified Korean MIND Diet: A Nutritional Intervention for Improved Cognitive Function in Elderly Women through Mitochondrial Respiration, Inflammation Suppression, and Amino Acid Metabolism Regulation. Mol Nutr Food Res 2023; 67:e2300329. [PMID: 37650267 DOI: 10.1002/mnfr.202300329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/19/2023] [Indexed: 09/01/2023]
Abstract
SCOPE Mild cognitive impairment is associated with a high prevalence of dementia. The study examines the benefits of a modified Korean MIND (K-MIND) diet and explores biomarkers using multi-omics analysis. METHODS AND RESULTS The K-MIND diet, tailored to the elderly Korean population, includes perilla oil, milk, or fermented milk, and avoids alcohol consumption. As a result, the K-MIND diet significantly improves subjects "orientation to place" in the Korean version of the Mini-Mental State Examination, 2nd edition test. According to multi-omics analysis, the K-MIND diet upregulates genes associated with mitochondrial respiration, including ubiquinone oxidoreductase, cytochrome C oxidase, and ATP synthase, and immune system processes, and downregulates genes related to nuclear factor kappa B activity and inflammatory responses. In addition, K-MIND affects the metabolic pathways of glycine, serine, threonine, tryptophan, and sphingolipids, which are closely linked to cognitive function through synthesis of neurotransmitters and structures of brain cell membranes. CONCLUSION The findings imply that the K-MIND diet improves cognitive function by upregulating key genes involved in oxidative phosphorylation and downregulating pro-inflammatory cytokines.
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Affiliation(s)
- Eun Young Kang
- Department of Food and Nutrition, Hanyang University, Seoul, 04763, Republic of Korea
| | - Do-Young Kim
- Department of Animal Science and Technology, Chung-Ang University, Gyeonggi-do, 17546, Republic of Korea
| | - Hyun Kyung Kim
- Department of Food and Nutrition, Hanyang University, Seoul, 04763, Republic of Korea
| | - Weon-Sun Shin
- Department of Food and Nutrition, Hanyang University, Seoul, 04763, Republic of Korea
| | - Young-Sook Park
- Department of Food and Nutrition, Hanyang University, Seoul, 04763, Republic of Korea
| | - Tae Hoon Kim
- Department of Food and Nutrition, Hanyang University, Seoul, 04763, Republic of Korea
| | - Wooki Kim
- Department of Food Science and Biotechnology, Kyung Hee University, Gyeonggi-do, 17104, Republic of Korea
| | - Lei Cao
- Department of Food Science and Biotechnology, Gachon University, Seongnam, 13120, Republic of Korea
| | - Sang-Gil Lee
- Department of Food Science and Nutrition, Pukyong National University, Busan, 48513, Republic of Korea
- Department of Smart Green Technology Engineering, Pukyong National University, Busan, 48513, Republic of Korea
| | - Gyoungok Gang
- Department of Food Science and Nutrition, Pukyong National University, Busan, 48513, Republic of Korea
| | - Minhye Shin
- Department of Microbiology, Inha University, Incheon, 22212, Republic of Korea
| | - Jun-Mo Kim
- Department of Animal Science and Technology, Chung-Ang University, Gyeonggi-do, 17546, Republic of Korea
| | - Gwang-Woong Go
- Department of Food and Nutrition, Hanyang University, Seoul, 04763, Republic of Korea
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Lee CW, Lee TV, Galvan E, Chen VCW, Bui S, Crouse SF, Fluckey JD, Smith SB, Riechman SE. The Effect of Choline and Resistance Training on Strength and Lean Mass in Older Adults. Nutrients 2023; 15:3874. [PMID: 37764658 PMCID: PMC10534351 DOI: 10.3390/nu15183874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 08/31/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Choline plays many important roles, including the synthesis of acetylcholine, and may affect muscle responses to exercise. We previously observed correlations between low choline intake and reduced gains in strength and lean mass following a 12-week resistance exercise training (RET) program for older adults. To further explore these findings, we conducted a randomized controlled trial. Three groups of 50-to-69-year-old healthy adults underwent a 12-week RET program (3x/week, 3 sets, 8-12 reps, 70% of maximum strength (1RM)) and submitted >48 diet logs (>4x/week for 12 weeks). Participants' diets were supplemented with 0.7 mg/kg lean/d (low, n = 13), 2.8 mg/kg lean/d (med, n = 11), or 7.5 mg/kg lean/d (high, n = 13) of choline from egg yolk and protein powder. The ANCOVA tests showed that low choline intake, compared with med or high choline intakes, resulted in significantly diminished gains in composite strength (leg press + chest press 1RM; low, 19.4 ± 8.2%; med, 46.8 ± 8.9%; high, 47.4 ± 8.1%; p = 0.034) and thigh-muscle quality (leg press 1RM/thigh lean mass; low, 12.3 ± 9.6%; med/high, 46.4 ± 7.0%; p = 0.010) after controlling for lean mass, protein, betaine, and vitamin B12. These data suggest that low choline intake may negatively affect strength gains with RET in older adults.
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Affiliation(s)
- Chang Woock Lee
- Department of Health and Human Performance, Nursing and Counseling, University of Houston-Victoria, Victoria, TX 77901, USA;
| | - Teak V. Lee
- Life Sciences Department, Pierce College, Woodland Hills, CA 91367, USA;
| | - Elfego Galvan
- School of Osteopathic Medicine in Arizona, A.T. Still University, Mesa, AZ 85206, USA;
| | - Vincent C. W. Chen
- Department of Integrative Health and Exercise Science, Georgian Court University, Lakewood, NJ 08701, USA;
| | - Steve Bui
- Department of Health and Human Performance, Utah Tech University, St. George, UT 84770, USA;
| | - Stephen F. Crouse
- Department of Kinesiology and Sport Management, Texas A&M University, College Station, TX 77843, USA; (S.F.C.); (J.D.F.)
| | - James D. Fluckey
- Department of Kinesiology and Sport Management, Texas A&M University, College Station, TX 77843, USA; (S.F.C.); (J.D.F.)
| | - Stephen B. Smith
- Department of Animal Science, Texas A&M University, College Station, TX 77843, USA
| | - Steven E. Riechman
- Department of Kinesiology and Sport Management, Texas A&M University, College Station, TX 77843, USA; (S.F.C.); (J.D.F.)
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Bekdash RA. Methyl Donors, Epigenetic Alterations, and Brain Health: Understanding the Connection. Int J Mol Sci 2023; 24:ijms24032346. [PMID: 36768667 PMCID: PMC9917111 DOI: 10.3390/ijms24032346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/18/2023] [Accepted: 01/21/2023] [Indexed: 01/27/2023] Open
Abstract
Methyl donors such as choline, betaine, folic acid, methionine, and vitamins B6 and B12 are critical players in the one-carbon metabolism and have neuroprotective functions. The one-carbon metabolism comprises a series of interconnected chemical pathways that are important for normal cellular functions. Among these pathways are those of the methionine and folate cycles, which contribute to the formation of S-adenosylmethionine (SAM). SAM is the universal methyl donor of methylation reactions such as histone and DNA methylation, two epigenetic mechanisms that regulate gene expression and play roles in human health and disease. Epigenetic mechanisms have been considered a bridge between the effects of environmental factors, such as nutrition, and phenotype. Studies in human and animal models have indicated the importance of the optimal levels of methyl donors on brain health and behavior across the lifespan. Imbalances in the levels of these micronutrients during critical periods of brain development have been linked to epigenetic alterations in the expression of genes that regulate normal brain function. We present studies that support the link between imbalances in the levels of methyl donors, epigenetic alterations, and stress-related disorders. Appropriate levels of these micronutrients should then be monitored at all stages of development for a healthier brain.
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Affiliation(s)
- Rola A Bekdash
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA
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9
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Lavanya R, Srinivasadesikan V, Lin MC, Padmini V. Development of an optical biosensor for the determination of choline in human biofluids. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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10
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Thomas MS, Puglisi M, Malysheva O, Caudill MA, Sholola M, Cooperstone JL, Fernandez ML. Eggs Improve Plasma Biomarkers in Patients with Metabolic Syndrome Following a Plant-Based Diet-A Randomized Crossover Study. Nutrients 2022; 14:nu14102138. [PMID: 35631279 PMCID: PMC9147178 DOI: 10.3390/nu14102138] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/16/2022] [Accepted: 05/18/2022] [Indexed: 12/12/2022] Open
Abstract
Plant-based (PB) diets are considered a healthy dietary pattern; however, eggs are not always included in this dietary regime. We hypothesized that the addition of two eggs per day would increase HDL cholesterol as well as plasma lutein, zeaxanthin and choline in individuals with metabolic syndrome (MetS). In this randomized controlled crossover intervention, we recruited 30 participants (49.3 ± 8 y) with MetS who followed a PB diet for 13 weeks. A registered dietitian advised all subjects on food selection and followed them through the intervention to ensure compliance. Participants underwent a 2-week washout with no eggs or spinach (a source of dietary lutein and zeaxanthin) and were randomly allocated to consume spinach (70 g) with either two eggs (EGG) or the equivalent amount of egg substitute (SUB) for breakfast for 4 weeks. After a 3-week washout, they were allocated the alternate breakfast. A total of 24 participants (13 women/11 men) finished the intervention. Plasma lipids, glucose, insulin, anthropometrics, plasma lutein, zeaxanthin, choline and trimethylamine oxide (TMAO) were assessed at baseline and the end of each intervention. When we compared individuals consuming the EGG versus the SUB breakfast, we observed a lower body weight (p < 0.02) and a higher HDL cholesterol (p < 0.025) after the EGG diet. There were no differences in plasma LDL cholesterol, triglycerides, glucose, insulin, or blood pressure. The number of large HDL particles measured by NMR was higher after EGG (p < 0.01) as compared to SUB. Plasma choline was higher in both treatments (p < 0.01) compared to baseline (8.3 ± 2.1 μmol/L). However, plasma choline values were higher in EGG (10.54 ± 2.8 μmol/L) compared to SUB (9.47 ± 2.7 μmol/L) p < 0.025. Both breakfasts increased plasma lutein compared to baseline (p < 0.01), while plasma zeaxanthin was only increased in the egg intervention (p < 0.01). These results indicate that consuming a plant-based diet in combination with whole eggs increases plasma HDL cholesterol, choline and zeaxanthin, important biomarkers in subjects with MetS.
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Affiliation(s)
- Minu S. Thomas
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA; (M.S.T.); (M.P.)
| | - Michael Puglisi
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA; (M.S.T.); (M.P.)
| | - Olga Malysheva
- Department of Human Nutrition, Division of Nutritional Science, Cornell University, Ithaca, NY 14860, USA; (O.M.); (M.A.C.)
| | - Marie A. Caudill
- Department of Human Nutrition, Division of Nutritional Science, Cornell University, Ithaca, NY 14860, USA; (O.M.); (M.A.C.)
| | - Maria Sholola
- Department of Food Science and Technology, The Ohio State University, Columbus, OH 43210, USA; (M.S.); (J.L.C.)
| | - Jessica L. Cooperstone
- Department of Food Science and Technology, The Ohio State University, Columbus, OH 43210, USA; (M.S.); (J.L.C.)
- Department of Horticulture and Crop Science, The Ohio State University, Columbus, OH 43210, USA
| | - Maria Luz Fernandez
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA; (M.S.T.); (M.P.)
- Correspondence:
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11
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Metabolite Signature of Physical Activity and the Risk of Type 2 Diabetes in 7271 Men. Metabolites 2022; 12:metabo12010069. [PMID: 35050191 PMCID: PMC8779070 DOI: 10.3390/metabo12010069] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/10/2022] [Accepted: 01/10/2022] [Indexed: 12/24/2022] Open
Abstract
Large population-based studies investigating the association of physical activity (PA) with the metabolite signature contribute significantly to the understanding of the effects of PA on metabolic pathways associated with the risk of type 2 diabetes. Our study included 8749 Finnish men without diabetes at baseline recruited from the Metabolic Syndrome in Men (METSIM) cohort. We used a questionnaire to measure leisure-time PA. Metabolites were measured in 7271 men as a part of Metabolon’s untargeted Discovery HD4 platform using ultrahigh-performance liquid chromatography–tandem mass spectrometry. We found 198 metabolites significantly associated with PA. Several of these metabolites were novel including especially steroids, amino acids, imidazoles, carboxylic acids, and hydroxy acids. Increased PA was significantly associated with high levels of choline plasmalogens, lysophosphatidylcholines, polyunsaturated fatty acids, carotenoids, long chain acylcarnitines, imidazoles, bilirubins, aryl sulfates, hydroxy acids, indolepropionate, and indolelactate. Several of these metabolites have been previously associated with a decreased risk of type 2 diabetes and with a healthy diet. Our population-based study shows that the metabolite signature of increased PA includes multiple metabolic pathways and is associated with better adherence to a healthy lifestyle.
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Abstract
All nutrients are essential for brain development, but pre-clinical and clinical studies have revealed sensitive periods of brain development during which key nutrients are critical. An understanding of these nutrient-specific sensitive periods and the accompanying brain regions or processes that are developing can guide effective nutrition interventions as well as the choice of meaningful circuit-specific neurobehavioral tests to best determine outcome. For several nutrients including protein, iron, iodine, and choline, pre-clinical and clinical studies align to identify the same sensitive periods, while for other nutrients, such as long-chain polyunsaturated fatty acids, zinc, and vitamin D, pre-clinical models demonstrate benefit which is not consistently shown in clinical studies. This discordance of pre-clinical and clinical results is potentially due to key differences in the timing, dose, and/or duration of the nutritional intervention as well as the pre-existing nutritional status of the target population. In general, however, the optimal window of success for nutritional intervention to best support brain development is in late fetal and early postnatal life. Lack of essential nutrients during these times can lead to long-lasting dysfunction and significant loss of developmental potential.
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Affiliation(s)
- Sarah E Cusick
- Department of Pediatrics, University of Minnesota School of Medicine, Minneapolis, MN, USA.
| | - Amanda Barks
- University of Minnesota Medical School, Minneapolis, MN, USA
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Shobhna, Kumari M, Kashyap HK. Mechanistic Insight on BioIL-Induced Structural Alterations in DMPC Lipid Bilayer. J Phys Chem B 2021; 125:11955-11966. [PMID: 34672578 DOI: 10.1021/acs.jpcb.1c06218] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The emerging application risks of traditional ionic liquids (ILs) toward the ecosystem have changed the perception regarding their greenness. This resulted in the exploration of their more biocompatible alternatives known as biocompatible ILs (BioILs). Here, we have investigated the impact of two such biocompatible cholinium amino acid-based ILs on the structural behavior of model homogeneous DMPC (1,2-dimyristoyl-sn-glycero-3-phosphocholine) lipid bilayer using all-atom molecular dynamics simulation technique. Two classic cholinium-amino acid-based ILs, cholinium glycinate ([Ch][Gly]) and cholinium phenylalaninate ([Ch][Phe]), which differ only by the side chain lengths and hydrophobicity of the anions, have been utilized in the present work. Simultaneous analysis of the bilayer structural properties reveals that the existence of [Ch][Gly] BioIL above a particular concentration induces phase transition from fluid phase to gel phase in the DMPC lipid bilayer. Such a freezing of lipid bilayer upon the exposure to concentrated aqueous solution of [Ch][Gly] BioIL indicates the harmfulness of this BioIL toward the cell membranes majorly containing DMPC lipids, as the cell freezing can negatively affect its stability and functionality. Despite having a more hydrophobic amino acid side chain of [Phe]- anion in [Ch][Phe], in the case of bilayer-[Ch][Phe] systems we observe the minimal impact of [Ch][Phe] BioIL on the DMPC bilayer properties up to 10 mol % concentration. In the presence of these BioIL, we observe the thickening of the bilayer and accumulation of the cations and anions of the BioILs at the interface of DMPC lipid heads and tails. The transfer free-energy profile of a [Phe]- anion from aqueous phase to membrane center also indicates the anion partitioning at lipid head-tail interface and its inability to penetrate in the lipid membrane tail region. In contrast, the free-energy profile for a [Gly]- anion offers a very high energy barrier to the insertion of [Gly]- into the membrane interior, leading to accumulation of [Gly]- anions at the lipid head-water region.
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Affiliation(s)
- Shobhna
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Monika Kumari
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Hemant K Kashyap
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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Choline Chloride-Based DES as Solvents/Catalysts/Chemical Donors in Pharmaceutical Synthesis. Molecules 2021; 26:molecules26206286. [PMID: 34684867 PMCID: PMC8540169 DOI: 10.3390/molecules26206286] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/13/2021] [Accepted: 10/15/2021] [Indexed: 12/30/2022] Open
Abstract
DES are mixtures of two or more compounds, able to form liquids upon mixing, with lower freezing points when compared to the individual constituents (eutectic mixtures). This attitude is due to the specific hydrogen-bond interactions network between the components of the mixture. A notable characteristic of DES is the possibility to develop tailor-made mixtures by changing the components ratios or a limited water dilution, for special applications, making them attractive for pharmaceutical purposes. In this review, we focused our attention on application of ChCl-based DES in the synthesis of pharmaceutical compounds. In this context, these eutectic mixtures can be used as solvents, solvents/catalysts, or as chemical donors and we explored some representative examples in recent literature of such applications.
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Pandit P, Galande S, Iris F. Maternal malnutrition and anaemia in India: dysregulations leading to the 'thin-fat' phenotype in newborns. J Nutr Sci 2021; 10:e91. [PMID: 34733503 PMCID: PMC8532069 DOI: 10.1017/jns.2021.83] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 09/05/2021] [Accepted: 09/10/2021] [Indexed: 12/21/2022] Open
Abstract
Maternal and child malnutrition and anaemia remain the leading factors for health loss in India. Low birth weight (LBW) offspring of women suffering from chronic malnutrition and anaemia often exhibit insulin resistance and infantile stunting and wasting, together with increased risk of developing cardiometabolic disorders in adulthood. The resulting self-perpetuating and highly multifactorial disease burden cannot be remedied through uniform dietary recommendations alone. To inform approaches likely to alleviate this disease burden, we implemented a systems-analytical approach that had already proven its efficacy in multiple published studies. We utilised previously published qualitative and quantitative analytical results of rural and urban field studies addressing maternal and infantile metabolic and nutritional parameters to precisely define the range of pathological phenotypes encountered and their individual biological characteristics. These characteristics were then integrated, via extensive literature searches, into metabolic and physiological mechanisms to identify the maternal and foetal metabolic dysregulations most likely to underpin the 'thin-fat' phenotype in LBW infants and its associated pathological consequences. Our analyses reveal hitherto poorly understood maternal nutrition-dependent mechanisms most likely to promote and sustain the self-perpetuating high disease burden, especially in the Indian population. This work suggests that it most probably is the metabolic consequence of 'ill-nutrition' - the recent and rapid dietary shifts to high salt, high saturated fats and high sugar but low micronutrient diets - over an adaptation to 'thrifty metabolism' which must be addressed in interventions aiming to significantly alleviate the leading risk factors for health deterioration in India.
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Key Words
- 5-mTHF, 5-methyltetrahydrofolate
- Anaemia
- BAT, brown adipocyte tissue
- EAA, essential amino acids
- FA, fatty acid
- GSH, glutathione
- Hcy, homocysteine
- LBW, low birth weight
- Low birth weight
- Malnutrition
- PE, phosphatidylethanolamine
- Pathological mechanisms
- Physiological programming
- SAM, S-adenosyl methionine
- TG, triacylglycerol
- WAT, white adipocyte tissue
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Affiliation(s)
| | - Sanjeev Galande
- Arbuza Regenerate Private Limited, Pune, India
- Department of Biology, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune411008, India
- Department of Life Sciences, Shiv Nadar University, Delhi-NCR, India
| | - François Iris
- Arbuza Regenerate Private Limited, Pune, India
- BM-Systems Private Limited, Paris, France
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16
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17
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Correia DM, Fernandes LC, Fernandes MM, Hermenegildo B, Meira RM, Ribeiro C, Ribeiro S, Reguera J, Lanceros-Méndez S. Ionic Liquid-Based Materials for Biomedical Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2401. [PMID: 34578716 PMCID: PMC8471968 DOI: 10.3390/nano11092401] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/01/2021] [Accepted: 09/08/2021] [Indexed: 11/16/2022]
Abstract
Ionic liquids (ILs) have been extensively explored and implemented in different areas, ranging from sensors and actuators to the biomedical field. The increasing attention devoted to ILs centers on their unique properties and possible combination of different cations and anions, allowing the development of materials with specific functionalities and requirements for applications. Particularly for biomedical applications, ILs have been used for biomaterials preparation, improving dissolution and processability, and have been combined with natural and synthetic polymer matrixes to develop IL-polymer hybrid materials to be employed in different fields of the biomedical area. This review focus on recent advances concerning the role of ILs in the development of biomaterials and their combination with natural and synthetic polymers for different biomedical areas, including drug delivery, cancer therapy, tissue engineering, antimicrobial and antifungal agents, and biosensing.
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Affiliation(s)
- Daniela Maria Correia
- Centre of Physics, University of Minho, 4710-058 Braga, Portugal; (L.C.F.); (M.M.F.); (R.M.M.); (C.R.); (S.R.)
- Centre of Chemistry, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - Liliana Correia Fernandes
- Centre of Physics, University of Minho, 4710-058 Braga, Portugal; (L.C.F.); (M.M.F.); (R.M.M.); (C.R.); (S.R.)
| | - Margarida Macedo Fernandes
- Centre of Physics, University of Minho, 4710-058 Braga, Portugal; (L.C.F.); (M.M.F.); (R.M.M.); (C.R.); (S.R.)
- CEB—Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Bruno Hermenegildo
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain;
| | - Rafaela Marques Meira
- Centre of Physics, University of Minho, 4710-058 Braga, Portugal; (L.C.F.); (M.M.F.); (R.M.M.); (C.R.); (S.R.)
- CEB—Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Clarisse Ribeiro
- Centre of Physics, University of Minho, 4710-058 Braga, Portugal; (L.C.F.); (M.M.F.); (R.M.M.); (C.R.); (S.R.)
- CEB—Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Sylvie Ribeiro
- Centre of Physics, University of Minho, 4710-058 Braga, Portugal; (L.C.F.); (M.M.F.); (R.M.M.); (C.R.); (S.R.)
- IB-S—Institute for Research and Innovation on Bio-Sustainability, University of Minho, 4710-057 Braga, Portugal
| | - Javier Reguera
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain;
| | - Senentxu Lanceros-Méndez
- Centre of Physics, University of Minho, 4710-058 Braga, Portugal; (L.C.F.); (M.M.F.); (R.M.M.); (C.R.); (S.R.)
- IKERBASQUE, Basque Foundation for Science, 48009 Bilbao, Spain
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Nenseth HZ, Sahu A, Saatcioglu F, Osguthorpe S. A Nutraceutical Formula Is Effective in Raising the Circulating Vitamin and Mineral Levels in Healthy Subjects: A Randomized Trial. Front Nutr 2021; 8:703394. [PMID: 34540877 PMCID: PMC8440802 DOI: 10.3389/fnut.2021.703394] [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: 04/30/2021] [Accepted: 07/23/2021] [Indexed: 11/13/2022] Open
Abstract
Low levels of nutrient intake are common in industrialized countries. This has negative implications on health and is associated with chronic diseases. Supplementation of vitamins, minerals, and key nutrients to optimal levels may, therefore, be beneficial for individual health and for the health economy. Although the use of supplements has become very common, due to a lack of monitoring, there is very limited data on the efficacy of supplementation with different formulas. In this study, we present the results of a randomized controlled study on the efficacy of a novel formulated nutraceutical, N247, in 250 healthy volunteers aged 26-75 years and a placebo control group (n = 35). The broad-spectrum formulation of N247 includes essential vitamins, minerals, and trace elements that are adequately balanced in regard to synergies and related metabolic functions. Moreover, tolerance, safety, and nutrient availability is an important aspect of daily, long-term use of N247. After 3 months of regular N247 use, levels of vitamins and minerals in serum were significantly increased in the N247 group compared with the control group and a placebo group, with excellent compliance rates. Coupled with additional natural ingredients that aim to increase the potency of the nutrients, N247 may represent a novel and beneficial supplement for individuals with nutritional deficiencies. Clinical Trial Registration:https://clinicaltrials.gov/, identifier: NCT04054505.
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Affiliation(s)
| | - Aparna Sahu
- Turiyan Psyneuronics Pvt. Ltd, Bangalore, India
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Effects of dietary choline on liver lipid composition, liver histology and plasma biochemistry of juvenile yellowtail kingfish ( Seriola lalandi). Br J Nutr 2021; 125:1344-1358. [PMID: 32943119 DOI: 10.1017/s0007114520003669] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Choline plays a crucial role in lipid metabolism for fish, and its deficiency in aquafeed has been linked to compromised health and growth performance. A 56-d experiment was conducted to examine the effects of dietary choline on lipid composition, histology and plasma biochemistry of yellowtail kingfish (Seriola lalandi; YTK; 156 g initial body weight). The dietary choline content ranged from 0·59 to 6·22 g/kg diet. 2-Amino-2-methyl-1-propanol (AMP) (3 g/kg) was added to diets, except for a control diet, to limit de novo choline synthesis. The results showed that the liver lipid content of YTK was similar among diets containing AMP and dominated by NEFA. In contrast, fish fed the control diet had significantly elevated liver TAG. Generally, the SFA, MUFA and PUFA content of liver lipid in fish fed diets containing AMP was not influenced by choline content. The SFA and MUFA content of liver lipid in fish fed the control diet was similar to other diets except for a decrease in PUFA. The linear relationship between lipid digestibility and plasma cholesterol was significant, otherwise most parameters were unaffected. When AMP is present, higher dietary choline reduced the severity of some hepatic lesions. The present study demonstrated that choline deficiency affects some plasma and liver histology parameters in juvenile YTK which might be useful fish health indicators. Importantly, the present study elucidated potential reasons for lower growth in choline-deficient YTK and increased the knowledge on choline metabolism in the fish.
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20
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Díaz Galván C, Méndez Olvera ET, Martínez Gómez D, Gloria Trujillo A, Hernández García PA, Espinosa Ayala E, Palacios Martínez M, Lara Bueno A, Mendoza Martínez GD, Velázquez Cruz LA. Influence of a Polyherbal Mixture in Dairy Calves: Growth Performance and Gene Expression. Front Vet Sci 2021; 7:623710. [PMID: 33575280 PMCID: PMC7870704 DOI: 10.3389/fvets.2020.623710] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 12/21/2020] [Indexed: 11/23/2022] Open
Abstract
A polyherbal feed mixture containing (Achyrantes aspera, Trachyspermum ammi, Citrullus colocynthis, Andrographis paniculata, and Azadirachta indica) was evaluated in growing calves through blood chemistry, blood biometry, and gene expression during the pre-ruminant to weaning period. Forty Holstein calves (initial BW 45.6 ± 3.2 kg; 22.8 ± 0.9 days post birth) from a dairy farm were randomly assigned to the following treatments: 0, 3, 4, and 5 g/d of a polyherbal mixture, dosed in colloid gels with gelatin. Calves were housed in individual outdoor boxes with ad libitum access to a 21.5% CP calf starter and water and fed individually with a mixture of milk and a non-medicated milk replacer (22% CP). Blood samples were collected on day 59 for blood chemistry, blood biometry, and gene expression analysis in leukocyte through microarray assays. Immunoglobulins were quantified by enzyme-linked immunosorbent assay. The animals treated with the polyherbal mixture showed a quadratic effect on final body weight, daily weight gain, final hip height, and final thoracic girth. The best performance results were obtained with a treatment dose of 4 g/d. The serum IgG increased linearly with the treatment doses. Gene set enrichment analysis of upregulated genes revealed that the three biological processes with higher fold change were tight junction, mucin type O-Glycan biosynthesis, and intestinal immune network for IgA production. Also, these upregulated genes influenced arachidonic acid metabolism, and pantothenate and CoA biosynthesis. Gene ontology enrichment analysis indicated that the pathways enriched were PELP1 estrogen receptor interacting protein pathways, nuclear receptors in lipid metabolism and toxicity, tight junction, ECM-receptor interaction, thyroid hormone signaling pathways, vascular smooth muscle contraction, ribosome function, glutamatergic synapse pathway, focal adhesion, Hippo, calcium, and MAPK signaling pathways.
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Affiliation(s)
- Cesar Díaz Galván
- Doctorado en Ciencias Agropecuarias, Universidad Autónoma Metropolitana Xochimilco, Ciudad de México, Mexico
| | - Estela Teresita Méndez Olvera
- Laboratorio de Biología Molecular, Departamento de Producción Agrícola y Animal, Universidad Autónoma Metropolitana Xochimilco, Ciudad de México, Mexico
| | - Daniel Martínez Gómez
- Laboratorio de Microbiología Agropecuaria, Universidad Autónoma Metropolitana Xochimilco, Ciudad de México, Mexico
| | - Adrián Gloria Trujillo
- Departamento de Producción Agrícola y Animal, Universidad Autónoma Metropolitana Xochimilco, Ciudad de México, Mexico
| | | | - Enrique Espinosa Ayala
- Centro Universitario UAEM Amecameca, Universidad Autónoma del Estado de México, Amecameca, Mexico
| | - Monika Palacios Martínez
- Departamento de Producción Agrícola y Animal, Universidad Autónoma Metropolitana Xochimilco, Ciudad de México, Mexico
| | | | - Germán David Mendoza Martínez
- Departamento de Producción Agrícola y Animal, Universidad Autónoma Metropolitana Xochimilco, Ciudad de México, Mexico
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21
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tert-Butoxychloromethylphenylsilane: synthesis and reactivity. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-3033-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Chen D, Han J, Yang J, Schibli D, Zhang Z, Borchers CH. Supermolecule-assisted imaging of low-molecular-weight quaternary-ammonium compounds by MALDI-MS of their non-covalent complexes with cucurbit[7]uril. RSC Adv 2020; 10:34261-34265. [PMID: 35519074 PMCID: PMC9056735 DOI: 10.1039/d0ra04604c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 09/08/2020] [Indexed: 12/18/2022] Open
Abstract
Cucurbit[7]uril was used to form non-covalent complexes with low-molecular-weight quaternary-ammonium compounds for their indirect analysis by MALDI-MS. By shifting the ion signals to a higher and interference-free mass region, the distributions of neurine, choline, and phosphocholine in rat brain were visualized by MALDI imaging with high selectivity and good sensitivity. Cucurbit[7]uril was used to form non-covalent complexes with low-molecular-weight quaternary-ammonium compounds for their indirect analysis by MALDI-MS.![]()
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Affiliation(s)
- Di Chen
- University of Victoria - Genome British Columbia Proteomics Centre Victoria BC V8Z 7X8 Canada .,School of Pharmaceutical Sciences, Zhengzhou University Zhengzhou 450001 China
| | - Jun Han
- University of Victoria - Genome British Columbia Proteomics Centre Victoria BC V8Z 7X8 Canada .,Division of Medical Sciences, University of Victoria Victoria BC V8P 5C2 Canada
| | - Juncong Yang
- University of Victoria - Genome British Columbia Proteomics Centre Victoria BC V8Z 7X8 Canada
| | - David Schibli
- University of Victoria - Genome British Columbia Proteomics Centre Victoria BC V8Z 7X8 Canada
| | - Zhenzhong Zhang
- School of Pharmaceutical Sciences, Zhengzhou University Zhengzhou 450001 China
| | - Christoph H Borchers
- Department of Biochemistry and Microbiology, University of Victoria Victoria BC V8P 5C2 Canada.,Gerald Bronfman Department of Oncology, Jewish General Hospital, McGill University Montreal Quebec H3T 1E2 Canada .,Segal Cancer Proteomics Centre, Lady Davis Institute, Jewish General Hospital, McGill University Montreal Quebec H3T 1E2 Canada.,Center for Computational and Data-Intensive Science and Engineering, Skolkovo Institute of Science and Technology Moscow 121205 Russia
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23
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O’Dwyer C, Yaworski R, Katsumura S, Ghorbani P, Gobeil Odai K, Nunes JR, LeBlond ND, Sanjana S, Smith TT, Han S, Margison KD, Alain T, Morita M, Fullerton MD. Hepatic Choline Transport Is Inhibited During Fatty Acid-Induced Lipotoxicity and Obesity. Hepatol Commun 2020; 4:876-889. [PMID: 32490323 PMCID: PMC7262319 DOI: 10.1002/hep4.1516] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 02/25/2020] [Accepted: 03/11/2020] [Indexed: 01/11/2023] Open
Abstract
Choline is an essential nutrient and a critical component of the membrane phospholipid phosphatidylcholine (PC), the neurotransmitter acetylcholine, while also contributing to the methylation pathway. In the liver specifically, PC is the major membrane constituent and can be synthesized by the cytidine diphosphate-choline or the phosphatidylethanolamine N-methyltransferase pathway. With the continuing global rise in the rates of obesity and nonalcoholic fatty liver disease, we sought to explore how excess fatty acids on primary hepatocytes and diet-induced obesity affect choline uptake and metabolism. Our results demonstrate that hepatocytes chronically treated with palmitate, but not oleate or a mixture, had decreased choline uptake, which was associated with lower choline incorporation into PC and lower expression of choline transport proteins. Interestingly, a reduction in the rate of degradation spared PC levels in response to palmitate when compared with control. The effects of palmitate treatment were independent of endoplasmic reticulum stress, which counterintuitively augmented choline transport and transporter expression. In a model of obesity-induced hepatic steatosis, male mice fed a 60% high-fat diet for 10 weeks had significantly diminished hepatic choline uptake compared with lean mice fed a control diet. Although the transcript and protein expression of various choline metabolic enzymes fluctuated slightly, we observed reduced protein expression of choline transporter-like 1 (CTL1) in the liver of mice fed a high-fat diet. Polysome profile analyses revealed that in livers of obese mice, the CTL1 transcript, despite being more abundant, was translated to a lesser extent compared with lean controls. Finally, human liver cells demonstrated a similar response to palmitate treatment. Conclusion: Our results suggest that the altered fatty acid milieu seen in obesity-induced fatty liver disease progression may adversely affect choline metabolism, potentially through CTL1, but that compensatory mechanisms work to maintain phospholipid homeostasis.
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Affiliation(s)
- Conor O’Dwyer
- Department of Biochemistry, Microbiology and ImmunologyFaculty of MedicineUniversity of OttawaOttawaONCanada
- Centre for InfectionImmunity and Inflammation and Centre for Catalysis Research and InnovationUniversity of OttawaOttawaONCanada
| | - Rebecca Yaworski
- Department of Biochemistry, Microbiology and ImmunologyFaculty of MedicineUniversity of OttawaOttawaONCanada
- Centre for InfectionImmunity and Inflammation and Centre for Catalysis Research and InnovationUniversity of OttawaOttawaONCanada
| | - Sakie Katsumura
- Department of Molecular MedicineUniversity of Texas Health Science Center at San AntonioSan AntonioTX
| | - Peyman Ghorbani
- Department of Biochemistry, Microbiology and ImmunologyFaculty of MedicineUniversity of OttawaOttawaONCanada
- Centre for InfectionImmunity and Inflammation and Centre for Catalysis Research and InnovationUniversity of OttawaOttawaONCanada
| | - Kaelan Gobeil Odai
- Department of Biochemistry, Microbiology and ImmunologyFaculty of MedicineUniversity of OttawaOttawaONCanada
- Centre for InfectionImmunity and Inflammation and Centre for Catalysis Research and InnovationUniversity of OttawaOttawaONCanada
| | - Julia R.C. Nunes
- Department of Biochemistry, Microbiology and ImmunologyFaculty of MedicineUniversity of OttawaOttawaONCanada
- Centre for InfectionImmunity and Inflammation and Centre for Catalysis Research and InnovationUniversity of OttawaOttawaONCanada
| | - Nicholas D. LeBlond
- Department of Biochemistry, Microbiology and ImmunologyFaculty of MedicineUniversity of OttawaOttawaONCanada
- Centre for InfectionImmunity and Inflammation and Centre for Catalysis Research and InnovationUniversity of OttawaOttawaONCanada
| | - Sabrin Sanjana
- Department of Biochemistry, Microbiology and ImmunologyFaculty of MedicineUniversity of OttawaOttawaONCanada
- Centre for InfectionImmunity and Inflammation and Centre for Catalysis Research and InnovationUniversity of OttawaOttawaONCanada
| | - Tyler T.K. Smith
- Department of Biochemistry, Microbiology and ImmunologyFaculty of MedicineUniversity of OttawaOttawaONCanada
- Centre for InfectionImmunity and Inflammation and Centre for Catalysis Research and InnovationUniversity of OttawaOttawaONCanada
| | - Shauna Han
- Department of Biochemistry, Microbiology and ImmunologyFaculty of MedicineUniversity of OttawaOttawaONCanada
- Centre for InfectionImmunity and Inflammation and Centre for Catalysis Research and InnovationUniversity of OttawaOttawaONCanada
| | - Kaitlyn D. Margison
- Department of Biochemistry, Microbiology and ImmunologyFaculty of MedicineUniversity of OttawaOttawaONCanada
- Centre for InfectionImmunity and Inflammation and Centre for Catalysis Research and InnovationUniversity of OttawaOttawaONCanada
| | - Tommy Alain
- Department of Biochemistry, Microbiology and ImmunologyFaculty of MedicineUniversity of OttawaOttawaONCanada
- Centre for InfectionImmunity and Inflammation and Centre for Catalysis Research and InnovationUniversity of OttawaOttawaONCanada
- Children’s Hospital of Eastern Ontario Research InstituteOttawaONCanada
| | - Masahiro Morita
- Department of Molecular MedicineUniversity of Texas Health Science Center at San AntonioSan AntonioTX
- Barshop Institute for Longevity and Aging StudiesUniversity of Texas Health Science Center at San AntonioSan AntonioTX
- Institute of Resource Development and AnalysisKumamoto UniversityKumamotoJapan
| | - Morgan D. Fullerton
- Department of Biochemistry, Microbiology and ImmunologyFaculty of MedicineUniversity of OttawaOttawaONCanada
- Centre for InfectionImmunity and Inflammation and Centre for Catalysis Research and InnovationUniversity of OttawaOttawaONCanada
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24
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Su Y, Bian S, Sawan M. Real-time in vivo detection techniques for neurotransmitters: a review. Analyst 2020; 145:6193-6210. [DOI: 10.1039/d0an01175d] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Functional synapses in the central nervous system depend on a chemical signal exchange process that involves neurotransmitter delivery between neurons and receptor cells in the neuro system.
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Affiliation(s)
- Yi Su
- Zhejiang university
- Hangzhou, 310058
- China
- CENBRAIN Lab
- School of Engineering
| | - Sumin Bian
- CENBRAIN Lab
- School of Engineering
- Westlake University
- Hangzhou
- China
| | - Mohamad Sawan
- CENBRAIN Lab
- School of Engineering
- Westlake University
- Hangzhou
- China
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25
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Bekdash RA. Neuroprotective Effects of Choline and Other Methyl Donors. Nutrients 2019; 11:nu11122995. [PMID: 31817768 PMCID: PMC6950346 DOI: 10.3390/nu11122995] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 11/20/2019] [Accepted: 12/05/2019] [Indexed: 12/14/2022] Open
Abstract
Recent evidence suggests that physical and mental health are influenced by an intricate interaction between genes and environment. Environmental factors have been shown to modulate neuronal gene expression and function by epigenetic mechanisms. Exposure to these factors including nutrients during sensitive periods of life could program brain development and have long-lasting effects on mental health. Studies have shown that early nutritional intervention that includes methyl-donors improves cognitive functions throughout life. Choline is a micronutrient and a methyl donor that is required for normal brain growth and development. It plays a pivotal role in maintaining structural and functional integrity of cellular membranes. It also regulates cholinergic signaling in the brain via the synthesis of acetylcholine. Via its metabolites, it participates in pathways that regulate methylation of genes related to memory and cognitive functions at different stages of development. Choline-related functions have been dysregulated in some neurodegenerative diseases suggesting choline role in influencing mental health across the lifespan.
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Affiliation(s)
- Rola A Bekdash
- Department of Biological Sciences, Rutgers University, Newark, NJ 07102, USA
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Skye SM, Zhu W, Romano KA, Guo CJ, Wang Z, Jia X, Kirsop J, Haag B, Lang JM, DiDonato JA, Tang WHW, Lusis AJ, Rey FE, Fischbach MA, Hazen SL. Microbial Transplantation With Human Gut Commensals Containing CutC Is Sufficient to Transmit Enhanced Platelet Reactivity and Thrombosis Potential. Circ Res 2019; 123:1164-1176. [PMID: 30359185 DOI: 10.1161/circresaha.118.313142] [Citation(s) in RCA: 119] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
RATIONALE Gut microbes influence cardiovascular disease and thrombosis risks through the production of trimethylamine N-oxide (TMAO). Microbiota-dependent generation of trimethylamine (TMA)-the precursor to TMAO-is rate limiting in the metaorganismal TMAO pathway in most humans and is catalyzed by several distinct microbial choline TMA-lyases, including the proteins encoded by the cutC/D (choline utilization C/D) genes in multiple human commensals. OBJECTIVE Direct demonstration that the gut microbial cutC gene is sufficient to transmit enhanced platelet reactivity and thrombosis potential in a host via TMA/TMAO generation has not yet been reported. METHODS AND RESULTS Herein, we use gnotobiotic mice and a series of microbial colonization studies to show that microbial cutC-dependent TMA/TMAO production is sufficient to transmit heightened platelet reactivity and thrombosis potential in a host. Specifically, we examine in vivo thrombosis potential employing germ-free mice colonized with either high TMA-producing stable human fecal polymcrobial communities or a defined CutC-deficient background microbial community coupled with a CutC-expressing human commensal±genetic disruption of its cutC gene (ie, Clostridium sporogenes Δ cutC). CONCLUSIONS Collectively, these studies point to the microbial choline TMA-lyase pathway as a rational molecular target for the treatment of atherothrombotic heart disease.
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Affiliation(s)
- Sarah M Skye
- From the Department of Cellular and Molecular Medicine, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., X.J., J.K., B.H., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH.,Center for Microbiome and Human Health, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., J.K., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH
| | - Weifei Zhu
- From the Department of Cellular and Molecular Medicine, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., X.J., J.K., B.H., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH.,Center for Microbiome and Human Health, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., J.K., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH
| | - Kymberleigh A Romano
- From the Department of Cellular and Molecular Medicine, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., X.J., J.K., B.H., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH.,Center for Microbiome and Human Health, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., J.K., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH.,Department of Bacteriology, University of Wisconsin-Madison (K.A.R., F.E.R.), David Geffen School of Medicine, University of California, Los Angeles
| | - Chun-Jun Guo
- Department of Bioengineering and ChEM-H, Stanford University, CA (C.-J.G., M.A.F.), David Geffen School of Medicine, University of California, Los Angeles
| | - Zeneng Wang
- From the Department of Cellular and Molecular Medicine, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., X.J., J.K., B.H., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH.,Center for Microbiome and Human Health, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., J.K., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH
| | - Xun Jia
- From the Department of Cellular and Molecular Medicine, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., X.J., J.K., B.H., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH
| | - Jennifer Kirsop
- From the Department of Cellular and Molecular Medicine, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., X.J., J.K., B.H., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH.,Center for Microbiome and Human Health, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., J.K., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH
| | - Bridget Haag
- From the Department of Cellular and Molecular Medicine, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., X.J., J.K., B.H., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH
| | - Jennifer M Lang
- Department of Human Genetics (J.M.L., A.J.L.), David Geffen School of Medicine, University of California, Los Angeles.,Department of Medicine (J.M.L., A.J.L.), David Geffen School of Medicine, University of California, Los Angeles
| | - Joseph A DiDonato
- From the Department of Cellular and Molecular Medicine, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., X.J., J.K., B.H., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH.,Center for Microbiome and Human Health, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., J.K., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH
| | - W H Wilson Tang
- From the Department of Cellular and Molecular Medicine, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., X.J., J.K., B.H., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH.,Center for Microbiome and Human Health, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., J.K., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH.,Department of Cardiovascular Medicine (W.H.W.T., S.L.H.), Cleveland Clinic, OH
| | - Aldons J Lusis
- Department of Human Genetics (J.M.L., A.J.L.), David Geffen School of Medicine, University of California, Los Angeles.,Department of Medicine (J.M.L., A.J.L.), David Geffen School of Medicine, University of California, Los Angeles
| | - Federico E Rey
- Department of Bacteriology, University of Wisconsin-Madison (K.A.R., F.E.R.), David Geffen School of Medicine, University of California, Los Angeles
| | - Michael A Fischbach
- From the Department of Cellular and Molecular Medicine, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., X.J., J.K., B.H., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH.,Department of Bioengineering and ChEM-H, Stanford University, CA (C.-J.G., M.A.F.), David Geffen School of Medicine, University of California, Los Angeles
| | - Stanley L Hazen
- Center for Microbiome and Human Health, Lerner Research Institute (S.M.S., W.Z., K.A.R., Z.W., J.K., J.A.D., W.H.W.T., S.L.H.), Cleveland Clinic, OH.,Department of Cardiovascular Medicine (W.H.W.T., S.L.H.), Cleveland Clinic, OH
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Escudero N, Deive FJ, Sanromán MÁ, Álvarez MS, Rodríguez A. Design of eco-friendly aqueous two-phase systems for the efficient extraction of industrial finishing dyes. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.04.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Choline and DHA in Maternal and Infant Nutrition: Synergistic Implications in Brain and Eye Health. Nutrients 2019; 11:nu11051125. [PMID: 31117180 PMCID: PMC6566660 DOI: 10.3390/nu11051125] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 05/06/2019] [Accepted: 05/17/2019] [Indexed: 12/11/2022] Open
Abstract
The aim of this review is to highlight current insights into the roles of choline and docosahexaenoic acid (DHA) in maternal and infant nutrition, with special emphasis on dietary recommendations, gaps in dietary intake, and synergistic implications of both nutrients in infant brain and eye development. Adequate choline and DHA intakes are not being met by the vast majority of US adults, and even more so by women of child-bearing age. Choline and DHA play a significant role in infant brain and eye development, with inadequate intakes leading to visual and neurocognitive deficits. Emerging findings illustrate synergistic interactions between choline and DHA, indicating that insufficient intakes of one or both could have lifelong deleterious impacts on both maternal and infant health.
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Probst Y, Guan V, Neale E. Development of a Choline Database to Estimate Australian Population Intakes. Nutrients 2019; 11:nu11040913. [PMID: 31018620 PMCID: PMC6521034 DOI: 10.3390/nu11040913] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 04/18/2019] [Accepted: 04/22/2019] [Indexed: 11/16/2022] Open
Abstract
The AUSNUT 2011-13 food composition database was expanded to include Australian choline values. The development began with a systematic literature review of published studies. Analytical data from the food studies were extracted and aligned with their equivalent AUSNUT food identification code. Global food composition databases containing choline values were matched to the remaining AUSNUT food codes, following the FAO INFOODS food matching guidelines, including adjustments for moisture and protein composition. Composite foods, and not further-specified foods, were developed using the Food Standards Australia New Zealand (FSANZ) recipe files. The completed choline database was then employed to analyse the Australian National Nutrition and Physical Activity Survey 2011-12, with population and sampling weightings applied. Survey respondents were classified into categories based on their level of choline intake and compared with the Australian Adequate Intake levels. Food sources of intake were also explored. Multiple linear regression models were developed for food group contributors to choline intake. Mean choline intakes varied from 151.50 mg for pregnant 14-18 years old, to 310.54 mg for 19-64 year old males. Less than 10% of the population by age and gender were achieving the Adequate Intake for choline. Eggs and their contributing food groups were the top ranked food sources of choline for the population.
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Affiliation(s)
- Yasmine Probst
- Smart Foods Centre, School of Medicine, University of Wollongong, Wollongong, NSW 2522, Australia.
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia.
| | - Vivienne Guan
- Smart Foods Centre, School of Medicine, University of Wollongong, Wollongong, NSW 2522, Australia.
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia.
| | - Elizabeth Neale
- Smart Foods Centre, School of Medicine, University of Wollongong, Wollongong, NSW 2522, Australia.
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Law SH, Chan ML, Marathe GK, Parveen F, Chen CH, Ke LY. An Updated Review of Lysophosphatidylcholine Metabolism in Human Diseases. Int J Mol Sci 2019; 20:ijms20051149. [PMID: 30845751 PMCID: PMC6429061 DOI: 10.3390/ijms20051149] [Citation(s) in RCA: 418] [Impact Index Per Article: 83.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 02/27/2019] [Accepted: 02/28/2019] [Indexed: 12/12/2022] Open
Abstract
Lysophosphatidylcholine (LPC) is increasingly recognized as a key marker/factor positively associated with cardiovascular and neurodegenerative diseases. However, findings from recent clinical lipidomic studies of LPC have been controversial. A key issue is the complexity of the enzymatic cascade involved in LPC metabolism. Here, we address the coordination of these enzymes and the derangement that may disrupt LPC homeostasis, leading to metabolic disorders. LPC is mainly derived from the turnover of phosphatidylcholine (PC) in the circulation by phospholipase A2 (PLA2). In the presence of Acyl-CoA, lysophosphatidylcholine acyltransferase (LPCAT) converts LPC to PC, which rapidly gets recycled by the Lands cycle. However, overexpression or enhanced activity of PLA2 increases the LPC content in modified low-density lipoprotein (LDL) and oxidized LDL, which play significant roles in the development of atherosclerotic plaques and endothelial dysfunction. The intracellular enzyme LPCAT cannot directly remove LPC from circulation. Hydrolysis of LPC by autotaxin, an enzyme with lysophospholipase D activity, generates lysophosphatidic acid, which is highly associated with cancers. Although enzymes with lysophospholipase A1 activity could theoretically degrade LPC into harmless metabolites, they have not been found in the circulation. In conclusion, understanding enzyme kinetics and LPC metabolism may help identify novel therapeutic targets in LPC-associated diseases.
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Affiliation(s)
- Shi-Hui Law
- Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
| | - Mei-Lin Chan
- Center for Lipid Biosciences, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan.
- Division of Thoracic Surgery, Department of Surgery, MacKay Memorial Hospital, MacKay Medical College, Taipei 10449, Taiwan.
| | - Gopal K Marathe
- Department of Studies in Biochemistry, Manasagangothri, University of Mysore, Mysore-570006, India.
| | - Farzana Parveen
- Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
| | - Chu-Huang Chen
- Center for Lipid Biosciences, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan.
- Lipid Science and Aging Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
- Vascular and Medicinal Research, Texas Heart Institute, Houston, TX 77030, USA.
| | - Liang-Yin Ke
- Department of Medical Laboratory Science and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
- Center for Lipid Biosciences, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan.
- Lipid Science and Aging Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
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31
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Liu L, Zhao M, Yu X, Zang W. Pharmacological Modulation of Vagal Nerve Activity in Cardiovascular Diseases. Neurosci Bull 2019; 35:156-166. [PMID: 30218283 PMCID: PMC6357265 DOI: 10.1007/s12264-018-0286-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 06/13/2018] [Indexed: 01/17/2023] Open
Abstract
Cardiovascular diseases are life-threatening illnesses with high morbidity and mortality. Suppressed vagal (parasympathetic) activity and increased sympathetic activity are involved in these diseases. Currently, pharmacological interventions primarily aim to inhibit over-excitation of sympathetic nerves, while vagal modulation has been largely neglected. Many studies have demonstrated that increased vagal activity reduces cardiovascular risk factors in both animal models and human patients. Therefore, the improvement of vagal activity may be an alternate approach for the treatment of cardiovascular diseases. However, drugs used for vagus nerve activation in cardiovascular diseases are limited in the clinic. In this review, we provide an overview of the potential drug targets for modulating vagal nerve activation, including muscarinic, and β-adrenergic receptors. In addition, vagomimetic drugs (such as choline, acetylcholine, and pyridostigmine) and the mechanism underlying their cardiovascular protective effects are also discussed.
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Affiliation(s)
- Longzhu Liu
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
| | - Ming Zhao
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
| | - Xiaojiang Yu
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China
| | - Weijin Zang
- Department of Pharmacology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, China.
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Abstract
Phospholipases D (PLDs) catalyze hydrolysis of the diester bond of phospholipids to generate phosphatidic acid and the free lipid headgroup. In mammals, PLD enzymes comprise the intracellular enzymes PLD1 and PLD2 and possibly the proteins encoded by related genes, as well as a class of cell surface and secreted enzymes with structural homology to ectonucleotide phosphatases/phosphodiesterases as typified by autotaxin (ENPP2) that have lysoPLD activities. Genetic and pharmacological loss-of-function approaches implicate these enzymes in intra- and intercellular signaling mediated by the lipid products phosphatidic acid, lysophosphatidic acid, and their metabolites, while the possibility that the water-soluble product of their reactions is biologically relevant has received far less attention. PLD1 and PLD2 are highly selective for phosphatidylcholine (PC), whereas autotaxin has broader substrate specificity for lysophospholipids but by virtue of the high abundance of lysophosphatidylcholine (LPC) in extracellular fluids predominantly hydrolyses this substrate. In all cases, the water-soluble product of these PLD activities is choline. Although choline can be formed de novo by methylation of phosphatidylethanolamine, this activity is absent in most tissues, so mammals are effectively auxotrophic for choline. Dietary consumption of choline in both free and esterified forms is substantial. Choline is necessary for synthesis of the neurotransmitter acetylcholine and of the choline-containing phospholipids PC and sphingomyelin (SM) and also plays a recently appreciated important role as a methyl donor in the pathways of "one-carbon (1C)" metabolism. This review discusses emerging evidence that some of the biological functions of these intra- and extracellular PLD enzymes involve generation of choline with a particular focus on the possibility that these choline and PLD dependent processes are dysregulated in cancer.
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33
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Gomes JM, Silva SS, Reis RL. Biocompatible ionic liquids: fundamental behaviours and applications. Chem Soc Rev 2019; 48:4317-4335. [DOI: 10.1039/c9cs00016j] [Citation(s) in RCA: 176] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The bio- and eco-friendly nature of biocompatible ionic liquids contributes to their widespread use in a wide range of fields.
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Affiliation(s)
- Joana M. Gomes
- 3B's Research Group, Biomaterials, Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4806-909 Guimarães
- Portugal
| | - Simone S. Silva
- 3B's Research Group, Biomaterials, Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4806-909 Guimarães
- Portugal
| | - Rui L. Reis
- 3B's Research Group, Biomaterials, Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine
- 4806-909 Guimarães
- Portugal
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34
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He D, Yuan D, Song Z, Xu Y, Liu Z. Eco-friendly synthesis of high silica zeolite Y with choline as green and innocent structure-directing agent. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(18)63167-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Georgieff MK, Ramel SE, Cusick SE. Nutritional influences on brain development. Acta Paediatr 2018; 107:1310-1321. [PMID: 29468731 PMCID: PMC6045434 DOI: 10.1111/apa.14287] [Citation(s) in RCA: 139] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 02/12/2018] [Accepted: 02/16/2018] [Indexed: 12/19/2022]
Abstract
There is increasing evidence from preclinical and human studies that nutrition in the late foetal and early neonatal period has a significant impact on neurodevelopment across the lifespan. Certain nutrients have particularly large effects in this time period, and their deficits cause greater long-term risk. The mechanisms by which nutrients influence early brain growth and the sensitive periods for when certain nutrients should be provided are being elucidated. Assessments of nutritional status that index brain growth and predict long-term development are important to assess the efficacy of early life nutritional therapies. CONCLUSION Optimizing nutrition during foetal and early postnatal life is a golden opportunity to impact neurodevelopment and brain function across the lifespan.
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Affiliation(s)
- Michael K. Georgieff
- Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN
| | - Sara E. Ramel
- Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN
| | - Sarah E. Cusick
- Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN
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36
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Chittim CL, Irwin SM, Balskus EP. Deciphering Human Gut Microbiota-Nutrient Interactions: A Role for Biochemistry. Biochemistry 2018; 57:2567-2577. [PMID: 29669199 DOI: 10.1021/acs.biochem.7b01277] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The human gut contains trillions of microorganisms that play a central role in many aspects of host biology, including the provision of key nutrients from the diet. However, our appreciation of how gut microbes and their extensive metabolic capabilities affect the nutritional status of the human host is in its infancy. In this Perspective, we highlight how recent efforts to elucidate the biochemical basis for gut microbial metabolism of dietary components are reshaping our view of these organisms' roles in host nutrition. Gaining a molecular understanding of gut microbe-nutrient interactions will enhance our knowledge of how diet affects host health and disease, ultimately enabling personalized nutrition and therapeutics.
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Affiliation(s)
- Carina L Chittim
- Department of Chemistry and Chemical Biology , Harvard University , 12 Oxford Street , Cambridge , Massachusetts 02138 , United States
| | - Stephania M Irwin
- Department of Chemistry and Chemical Biology , Harvard University , 12 Oxford Street , Cambridge , Massachusetts 02138 , United States
| | - Emily P Balskus
- Department of Chemistry and Chemical Biology , Harvard University , 12 Oxford Street , Cambridge , Massachusetts 02138 , United States
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Saternos HC, Almarghalani DA, Gibson HM, Meqdad MA, Antypas RB, Lingireddy A, AbouAlaiwi WA. Distribution and function of the muscarinic receptor subtypes in the cardiovascular system. Physiol Genomics 2017; 50:1-9. [PMID: 29093194 DOI: 10.1152/physiolgenomics.00062.2017] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Muscarinic acetylcholine receptors belong to the G protein-coupled receptor superfamily and are widely known to mediate numerous functions within the central and peripheral nervous system. Thus, they have become attractive therapeutic targets for various disorders. It has long been known that the parasympathetic system, governed by acetylcholine, plays an essential role in regulating cardiovascular function. Unfortunately, due to the lack of pharmacologic selectivity for any one muscarinic receptor, there was a minimal understanding of their distribution and function within this region. However, in recent years, advancements in research have led to the generation of knockout animal models, better antibodies, and more selective ligands enabling a more thorough understanding of the unique role muscarinic receptors play in the cardiovascular system. These advances have shown muscarinic receptor 2 is no longer the only functional subtype found within the heart and muscarinic receptors 1 and 3 mediate both dilation and constriction in the vasculature. Although muscarinic receptors 4 and 5 are still not well characterized in the cardiovascular system, the recent generation of knockout animal models will hopefully generate a better understanding of their function. This mini review aims to summarize recent findings and advances of muscarinic involvement in the cardiovascular system.
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Affiliation(s)
- Hannah C Saternos
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo , Toledo, Ohio
| | - Daniyah A Almarghalani
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo , Toledo, Ohio
| | - Hayley M Gibson
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo , Toledo, Ohio
| | - Mahmood A Meqdad
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo , Toledo, Ohio
| | - Raymond B Antypas
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo , Toledo, Ohio
| | - Ajay Lingireddy
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo , Toledo, Ohio
| | - Wissam A AbouAlaiwi
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo , Toledo, Ohio
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38
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Jacobs RL, Jiang H, Kennelly JP, Orlicky DJ, Allen RH, Stabler SP, Maclean KN. Cystathionine beta-synthase deficiency alters hepatic phospholipid and choline metabolism: Post-translational repression of phosphatidylethanolamine N-methyltransferase is a consequence rather than a cause of liver injury in homocystinuria. Mol Genet Metab 2017; 120:325-336. [PMID: 28291718 DOI: 10.1016/j.ymgme.2017.02.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 02/28/2017] [Indexed: 12/27/2022]
Abstract
Classical homocystinuria (HCU) due to inactivating mutation of cystathionine β-synthase (CBS) is a poorly understood life-threatening inborn error of sulfur metabolism. A previously described cbs-/- mouse model exhibits a semi-lethal phenotype due to neonatal liver failure. The transgenic HO mouse model of HCU exhibits only mild liver injury and recapitulates multiple aspects of the disease as it occurs in humans. Disruption of the methionine cycle in HCU has the potential to impact multiple aspect of phospholipid (PL) metabolism by disruption of both the Kennedy pathway and phosphatidylethanolamine N-methyltransferase (PEMT) mediated synthesis of phosphatidylcholine (PC). Comparative metabolomic analysis of HO mouse liver revealed decreased levels of choline, and choline phosphate indicating disruption of the Kennedy pathway. Alterations in the relative levels of multiple species of PL included significant increases in PL degradation products consistent with enhanced membrane PL turnover. A significant decrease in PC containing 20:4n6 which primarily formed by the methylation of phosphatidylethanolamine to PC was consistent with decreased flux through PEMT. Hepatic expression of PEMT in both the cbs-/- and HO models is post-translationally repressed with decreased levels of PEMT protein and activity that inversely-correlates with the scale of liver injury. Failure to induce further repression of PEMT in HO mice by increased homocysteine, methionine and S-adenosylhomocysteine or depletion of glutathione combined with examination of multiple homocysteine-independent models of liver injury indicated that repression of PEMT in HCU is a consequence rather than a cause of liver injury. Collectively, our data show significant alteration of a broad range of hepatic PL and choline metabolism in HCU with the potential to contribute to multiple aspects of pathogenesis in this disease.
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Affiliation(s)
- René L Jacobs
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G2E1, Canada; Department of Biochemistry, University of Alberta, Edmonton, Alberta T6G2E1, Canada
| | - Hua Jiang
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - John P Kennelly
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G2E1, Canada; Department of Biochemistry, University of Alberta, Edmonton, Alberta T6G2E1, Canada
| | - David J Orlicky
- Department of Pathology, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Robert H Allen
- Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Sally P Stabler
- Department of Medicine, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Kenneth N Maclean
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO 80045, USA.
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Gadilohar BL, Shankarling GS. Choline based ionic liquids and their applications in organic transformation. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2016.11.136] [Citation(s) in RCA: 123] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Assessment of phospholipid synthesis related biomarkers for perinatal asphyxia: a piglet study. Sci Rep 2017; 7:40315. [PMID: 28071721 PMCID: PMC5223196 DOI: 10.1038/srep40315] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 12/05/2016] [Indexed: 12/12/2022] Open
Abstract
The prompt and reliable identification of infants at risk of hypoxic-ischemic encephalopathy secondary to perinatal asphyxia in the first critical hours is important for clinical decision-making and yet still remains a challenge. This work strives for the evaluation of a panel of metabolic biomarkers that have been associated with the hypoxic-ischemic insult in the perinatal period. Plasma and urine samples from a consolidated newborn piglet model of hypoxia and withdrawn before and at different time points after a hypoxic insult were analyzed and compared to a control group. Time-dependent metabolic biomarker profiles were studied and observed patterns were similar to those of lactate levels, which are currently considered the gold standard for assessing hypoxia. Class prediction performance could be improved by the use of a combination of the whole panel of determined metabolites in plasma as compared to lactate values. Using a multivariate model including lactate together with the studied metabolic biomarkers allowed to improve the prediction performance of duration of hypoxia time, which correlates with the degree of brain damage. The present study evidences the usefulness of choline and related metabolites for improving the early assessment of the severity of the hypoxic insult.
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Lee AG, Capanzana R, Brockhurst J, Cheng MY, Buckmaster CL, Absher D, Schatzberg AF, Lyons DM. Learning to cope with stress modulates anterior cingulate cortex stargazin expression in monkeys and mice. Neurobiol Learn Mem 2016; 131:95-100. [PMID: 27003116 DOI: 10.1016/j.nlm.2016.03.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 03/16/2016] [Accepted: 03/18/2016] [Indexed: 11/29/2022]
Abstract
Intermittent mildly stressful situations provide opportunities to learn, practice, and improve coping with gains in subsequent emotion regulation. Here we investigate the effects of learning to cope with stress on anterior cingulate cortex gene expression in monkeys and mice. Anterior cingulate cortex is involved in learning, memory, cognitive control, and emotion regulation. Monkeys and mice were randomized to either stress coping or no-stress treatment conditions. Profiles of gene expression were acquired with HumanHT-12v4.0 Expression BeadChip arrays adapted for monkeys. Three genes identified in monkeys by arrays were then assessed in mice by quantitative real-time polymerase chain reaction. Expression of a key gene (PEMT) involved in acetylcholine biosynthesis was increased in monkeys by coping but this result was not verified in mice. Another gene (SPRY2) that encodes a negative regulator of neurotrophic factor signaling was decreased in monkeys by coping but this result was only partly verified in mice. The CACNG2 gene that encodes stargazin (also called TARP gamma-2) was increased by coping in monkeys as well as mice randomized to coping with or without subsequent behavioral tests of emotionality. As evidence of coping effects distinct from repeated stress exposures per se, increased stargazin expression induced by coping correlated with diminished emotionality in mice. Stargazin modulates glutamate receptor signaling and plays a role in synaptic plasticity. Molecular mechanisms of synaptic plasticity that mediate learning and memory in the context of coping with stress may provide novel targets for new treatments of disorders in human mental health.
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Affiliation(s)
- Alex G Lee
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA
| | - Roxanne Capanzana
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA
| | | | | | | | - Devin Absher
- HudsonAlpha Institute for Biotechnology, Huntsville, AL
| | - Alan F Schatzberg
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA
| | - David M Lyons
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA
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Bellar D, LeBlanc NR, Campbell B. The effect of 6 days of alpha glycerylphosphorylcholine on isometric strength. J Int Soc Sports Nutr 2015; 12:42. [PMID: 26582972 PMCID: PMC4650143 DOI: 10.1186/s12970-015-0103-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Accepted: 11/10/2015] [Indexed: 11/16/2022] Open
Abstract
Background Ergogenic aides are widely used by fitness enthusiasts and athletes to increase performance. Alpha glycerylphosphorylcholine (A-GPC) has demonstrated some initial promise in changing explosive performance. The purpose of the present investigation was to determine if 6 days of supplementation with A-GPC would augment isometric force production compared to a placebo. Methods Thirteen college-aged males (Means ± SD; Age: 21.9 ± 2.2 years, Height: 180.3 ± 7.7 cm, Weight: 87.6 ± 15.6 kg; VO2 max: 40.08 ± 7.23 ml O2*Kg−1*min−1, Body Fat: 17.5 ± 4.6 %) gave written informed consent to participate in the study. The study was a double blind, placebo controlled, cross-over design. The participants reported to the lab for an initial visit where they were familiarized with the isometric mid thigh pull in a custom squat cage on a force platform and upper body isometric test against a high frequency load cell, and baseline measurements were taken for both. The participant then consumed either 600 mg per day of A-GPC or placebo and at the end of 6 days performed isometric mid thigh pulls and an upper body isometric test. A one-week washout period was used before the participants’ baseline was re-measured and crossed over to the other treatment. Results The A-GPC treatment resulted in significantly greater isometric mid thigh pull peak force change from baseline (t = 1.76, p = 0.044) compared with placebo (A-GPC: 98.8. ± 236.9 N vs Placebo: −39.0 ± 170.9 N). For the upper body test the A-GPC treatment trended towards greater change from baseline force production (A-GPC: 50.9 ± 167.2 N Placebo: −14.9 ± 114.9 N) but failed to obtain statistical significance (t = 1.16, p = 0.127). Conclusions A-GPC is effective at increasing lower body force production after 6 days of supplementation. Sport performance coaches can consider adding A-GPC to the diet of speed and power athletes to enhance muscle performance.
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Affiliation(s)
- David Bellar
- School of Kinesiology, University of Louisiana at Lafayette, Lafayette, LA 70503 USA
| | - Nina R LeBlanc
- School of Kinesiology, University of Louisiana at Lafayette, Lafayette, LA 70503 USA
| | - Brian Campbell
- School of Kinesiology, University of Louisiana at Lafayette, Lafayette, LA 70503 USA
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da Silva RP, Kelly KB, Lewis ED, Leonard KA, Goruk S, Curtis JM, Vine DF, Proctor SD, Field CJ, Jacobs RL. Choline deficiency impairs intestinal lipid metabolism in the lactating rat. J Nutr Biochem 2015; 26:1077-83. [DOI: 10.1016/j.jnutbio.2015.04.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 04/28/2015] [Accepted: 04/30/2015] [Indexed: 10/23/2022]
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Jadvar H. Positron Emission Tomography in Prostate Cancer: Summary of Systematic Reviews and Meta-Analysis. ACTA ACUST UNITED AC 2015; 1:18-22. [PMID: 26726317 PMCID: PMC4696775 DOI: 10.18383/j.tom.2015.00130] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Prostate cancer is a prevalent public health problem worldwide. Over the past decade, there has been tremendous research activity in the potential use of positron emission tomography with a number of radiotracers targeted to various biological aspects of this complex tumor. Systematic reviews and meta-analyses are important contributions to the relevant literature that summarize the evidence while reducing the effect of various sources of bias in the published data. The accumulation of relevant data in this clinical setting has recently provided the opportunity for systematic reviews. In this brief article, I summarize the published systematic reviews and meta-analyses of positron emission tomography in prostate cancer. Most robust evidence suggests a probable role for first-line use of positron emission tomography with radiolabeled choline in restating patients with biochemical relapse of prostate cancer with the diagnostic performance that seems to be positively associated with the serum prostate-specific antigen level and velocity. Future systematic reviews will be needed for other emerging radiotracers such as those based on the prostate-specific membrane antigen and gastrin-releasing peptide receptor.
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Affiliation(s)
- Hossein Jadvar
- Division of Nuclear Medicine, Department of Radiology, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA 90033 USAPresident, Society of Nuclear Medicine and Molecular Imaging (SNMMI)
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Payne F, Lim K, Girousse A, Brown RJ, Kory N, Robbins A, Xue Y, Sleigh A, Cochran E, Adams C, Dev Borman A, Russel-Jones D, Gorden P, Semple RK, Saudek V, O'Rahilly S, Walther TC, Barroso I, Savage DB. Mutations disrupting the Kennedy phosphatidylcholine pathway in humans with congenital lipodystrophy and fatty liver disease. Proc Natl Acad Sci U S A 2014; 111:8901-6. [PMID: 24889630 PMCID: PMC4066527 DOI: 10.1073/pnas.1408523111] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Phosphatidylcholine (PC) is the major glycerophospholipid in eukaryotic cells and is an essential component in all cellular membranes. The biochemistry of de novo PC synthesis by the Kennedy pathway is well established, but less is known about the physiological functions of PC. We identified two unrelated patients with defects in the Kennedy pathway due to biallellic loss-of-function mutations in phosphate cytidylyltransferase 1 alpha (PCYT1A), the rate-limiting enzyme in this pathway. The mutations lead to a marked reduction in PCYT1A expression and PC synthesis. The phenotypic consequences include some features, such as severe fatty liver and low HDL cholesterol levels, that are predicted by the results of previously reported liver-specific deletion of murine Pcyt1a. Both patients also had lipodystrophy, severe insulin resistance, and diabetes, providing evidence for an additional and essential role for PCYT1A-generated PC in the normal function of white adipose tissue and insulin action.
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Affiliation(s)
- Felicity Payne
- Metabolic Disease Group, The Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Cambridge CB10 1SA, United Kingdom
| | - Koini Lim
- University of Cambridge, Metabolic Research Laboratories, Wellcome Trust-Medical Research Council Institute of Metabolic Science, Cambridge CB2 0QQ, United Kingdom
| | - Amandine Girousse
- University of Cambridge, Metabolic Research Laboratories, Wellcome Trust-Medical Research Council Institute of Metabolic Science, Cambridge CB2 0QQ, United Kingdom
| | - Rebecca J Brown
- Diabetes Endocrinology and Obesity Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Nora Kory
- Department of Cell Biology, School of Medicine, Yale University, New Haven, CT 06520
| | - Ann Robbins
- University of Cambridge, Metabolic Research Laboratories, Wellcome Trust-Medical Research Council Institute of Metabolic Science, Cambridge CB2 0QQ, United Kingdom
| | - Yali Xue
- Metabolic Disease Group, The Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Cambridge CB10 1SA, United Kingdom
| | - Alison Sleigh
- Wolfson Brain Imaging Centre, University of Cambridge, Cambridge CB2 0QQ, United Kingdom
| | - Elaine Cochran
- Diabetes Endocrinology and Obesity Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Claire Adams
- University of Cambridge, Metabolic Research Laboratories, Wellcome Trust-Medical Research Council Institute of Metabolic Science, Cambridge CB2 0QQ, United Kingdom
| | - Arundhati Dev Borman
- Moorfields Eye Hospital National Health Service Trust, London EC1V 2PD, United Kingdom; and
| | - David Russel-Jones
- Centre for Endocrinology, Diabetes and Research, Royal Surrey County Hospital, Guildford GU2 7XX, United Kingdom
| | - Phillip Gorden
- Diabetes Endocrinology and Obesity Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Robert K Semple
- University of Cambridge, Metabolic Research Laboratories, Wellcome Trust-Medical Research Council Institute of Metabolic Science, Cambridge CB2 0QQ, United Kingdom
| | - Vladimir Saudek
- University of Cambridge, Metabolic Research Laboratories, Wellcome Trust-Medical Research Council Institute of Metabolic Science, Cambridge CB2 0QQ, United Kingdom
| | - Stephen O'Rahilly
- University of Cambridge, Metabolic Research Laboratories, Wellcome Trust-Medical Research Council Institute of Metabolic Science, Cambridge CB2 0QQ, United Kingdom;
| | - Tobias C Walther
- Department of Cell Biology, School of Medicine, Yale University, New Haven, CT 06520
| | - Inês Barroso
- Metabolic Disease Group, The Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Cambridge CB10 1SA, United Kingdom;University of Cambridge, Metabolic Research Laboratories, Wellcome Trust-Medical Research Council Institute of Metabolic Science, Cambridge CB2 0QQ, United Kingdom;
| | - David B Savage
- University of Cambridge, Metabolic Research Laboratories, Wellcome Trust-Medical Research Council Institute of Metabolic Science, Cambridge CB2 0QQ, United Kingdom;
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Kempson SA, Zhou Y, Danbolt NC. The betaine/GABA transporter and betaine: roles in brain, kidney, and liver. Front Physiol 2014; 5:159. [PMID: 24795654 PMCID: PMC4006062 DOI: 10.3389/fphys.2014.00159] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Accepted: 04/04/2014] [Indexed: 12/18/2022] Open
Abstract
The physiological roles of the betaine/GABA transporter (BGT1; slc6a12) are still being debated. BGT1 is a member of the solute carrier family 6 (the neurotransmitter, sodium symporter transporter family) and mediates cellular uptake of betaine and GABA in a sodium- and chloride-dependent process. Most of the studies of BGT1 concern its function and regulation in the kidney medulla where its role is best understood. The conditions here are hostile due to hyperosmolarity and significant concentrations of NH4Cl and urea. To withstand the hyperosmolarity, cells trigger osmotic adaptation, involving concentration of a transcriptional factor TonEBP/NFAT5 in the nucleus, and accumulate betaine and other osmolytes. Data from renal cells in culture, primarily MDCK, revealed that transcriptional regulation of BGT1 by TonEBP/NFAT5 is relatively slow. To allow more acute control of the abundance of BGT1 protein in the plasma membrane, there is also post-translation regulation of BGT1 protein trafficking which is dependent on intracellular calcium and ATP. Further, betaine may be important in liver metabolism as a methyl donor. In fact, in the mouse the liver is the organ with the highest content of BGT1. Hepatocytes express high levels of both BGT1 and the only enzyme that can metabolize betaine, namely betaine:homocysteine –S-methyltransferase (BHMT1). The BHMT1 enzyme removes a methyl group from betaine and transfers it to homocysteine, a potential risk factor for cardiovascular disease. Finally, BGT1 has been proposed to play a role in controlling brain excitability and thereby represents a target for anticonvulsive drug development. The latter hypothesis is controversial due to very low expression levels of BGT1 relative to other GABA transporters in brain, and also the primary location of BGT1 at the surface of the brain in the leptomeninges. These issues are discussed in detail.
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Affiliation(s)
- Stephen A Kempson
- Department of Cellular and Integrative Physiology, Indiana University School of Medicine Indianapolis, IN, USA
| | - Yun Zhou
- Department of Anatomy, Centre of Molecular Biology and Neuroscience, Institute of Basic Medical Sciences, University of Oslo Oslo, Norway
| | - Niels C Danbolt
- Department of Anatomy, Centre of Molecular Biology and Neuroscience, Institute of Basic Medical Sciences, University of Oslo Oslo, Norway
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Fischer V, Both M, Draguhn A, Egorov AV. Choline-mediated modulation of hippocampal sharp wave-ripple complexesin vitro. J Neurochem 2014; 129:792-805. [DOI: 10.1111/jnc.12693] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 02/14/2014] [Accepted: 02/18/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Viktoria Fischer
- Institute of Physiology and Pathophysiology; Heidelberg University; Heidelberg Germany
| | - Martin Both
- Institute of Physiology and Pathophysiology; Heidelberg University; Heidelberg Germany
| | - Andreas Draguhn
- Institute of Physiology and Pathophysiology; Heidelberg University; Heidelberg Germany
- Bernstein Center for Computational Neuroscience (BCCN) Heidelberg/Mannheim; Heidelberg Germany
| | - Alexei V. Egorov
- Institute of Physiology and Pathophysiology; Heidelberg University; Heidelberg Germany
- Bernstein Center for Computational Neuroscience (BCCN) Heidelberg/Mannheim; Heidelberg Germany
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Ting Y, Li CC, Pan MH, Ho CT, Huang Q. Effect of a labile methyl donor on the transformation of 5-demethyltangeretin and the related implication on bioactivity. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:8090-8097. [PMID: 23915315 DOI: 10.1021/jf400562p] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Polymethoxyflavones (PMFs) belong to a subgroup of flavonoids that particularly exist in the peels of citrus fruits. Despite their many health-beneficial biofunctionalities, the lipophilic nature of PMFs limits their water solubility and oral bioavailability. To investigate the effect of the delivery system on the improvement of PMF bioavailibility, a lecithin-based emulsion was formulated for the delivery of two PMF compounds, tangeretin and 5-demethyltangeretin. While the emulsion system improved the digestion kinetics and the total solubilized PMF concentrations in in vitro lipolysis studies, the concentration of 5-demethyltangeretin decreased due to chemical transformation to its permethoxylated counterpart, tangeretin. The emulsifier lecithin used in this emulsion formulation contained a choline headgroup as a labile methyl group donor. The presence of a methyl donor potentially caused the transformation of 5-demethyltangeretin and reduced its anti-cancer-cell-proliferation activities. Moreover, this is the first report in the literature of the transformation from 5-demethyltangeretin to tangeretin in a lecithin-based emulsion during lipolysis, and the mechanism underlying this phenomenon has also been proposed for the first time.
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Affiliation(s)
- Yuwen Ting
- Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, USA
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Kraemer K, Semba RD, Eggersdorfer M, Schaumberg DA. Introduction: the diverse and essential biological functions of vitamins. ANNALS OF NUTRITION AND METABOLISM 2012. [PMID: 23183287 DOI: 10.1159/000343103] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Klaus Kraemer
- Sight and Life, Basel, Switzerland. klaus.kraemer @ sightandlife.org
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