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Chabert V, Kim GD, Qiu D, Liu G, Michaillat Mayer L, Jamsheer K M, Jessen HJ, Mayer A. Inositol pyrophosphate dynamics reveals control of the yeast phosphate starvation program through 1,5-IP 8 and the SPX domain of Pho81. eLife 2023; 12:RP87956. [PMID: 37728314 PMCID: PMC10511240 DOI: 10.7554/elife.87956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023] Open
Abstract
Eukaryotic cells control inorganic phosphate to balance its role as essential macronutrient with its negative bioenergetic impact on reactions liberating phosphate. Phosphate homeostasis depends on the conserved INPHORS signaling pathway that utilizes inositol pyrophosphates and SPX receptor domains. Since cells synthesize various inositol pyrophosphates and SPX domains bind them promiscuously, it is unclear whether a specific inositol pyrophosphate regulates SPX domains in vivo, or whether multiple inositol pyrophosphates act as a pool. In contrast to previous models, which postulated that phosphate starvation is signaled by increased production of the inositol pyrophosphate 1-IP7, we now show that the levels of all detectable inositol pyrophosphates of yeast, 1-IP7, 5-IP7, and 1,5-IP8, strongly decline upon phosphate starvation. Among these, specifically the decline of 1,5-IP8 triggers the transcriptional phosphate starvation response, the PHO pathway. 1,5-IP8 inactivates the cyclin-dependent kinase inhibitor Pho81 through its SPX domain. This stimulates the cyclin-dependent kinase Pho85-Pho80 to phosphorylate the transcription factor Pho4 and repress the PHO pathway. Combining our results with observations from other systems, we propose a unified model where 1,5-IP8 signals cytosolic phosphate abundance to SPX proteins in fungi, plants, and mammals. Its absence triggers starvation responses.
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Affiliation(s)
- Valentin Chabert
- Département d'immunobiologie, Université de LausanneEpalingesSwitzerland
| | - Geun-Don Kim
- Département d'immunobiologie, Université de LausanneEpalingesSwitzerland
| | - Danye Qiu
- Institute of Organic Chemistry, Centre for Integrative Biological Signalling Studies, University of FreiburgFreiburgGermany
| | - Guizhen Liu
- Institute of Organic Chemistry, Centre for Integrative Biological Signalling Studies, University of FreiburgFreiburgGermany
| | | | | | - Henning J Jessen
- Institute of Organic Chemistry, Centre for Integrative Biological Signalling Studies, University of FreiburgFreiburgGermany
| | - Andreas Mayer
- Département d'immunobiologie, Université de LausanneEpalingesSwitzerland
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2
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Chabert V, Babel L, Füeg MP, Karamash M, Madivoli ES, Herault N, Dantas JM, Salgueiro CA, Giese B, Fromm KM. Kinetics and Mechanism of Mineral Respiration: How Iron Hemes Synchronize Electron Transfer Rates. Angew Chem Int Ed Engl 2020; 59:12331-12336. [DOI: 10.1002/anie.201914873] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Valentin Chabert
- Department of Chemistry University of Fribourg Chemin du Musée 7 1700 Fribourg Switzerland
| | - Lucille Babel
- Department of Chemistry University of Fribourg Chemin du Musée 7 1700 Fribourg Switzerland
| | - Michael P. Füeg
- Department of Chemistry and Biochemistry University of Bern Freiestrasse 3 3012 Bern Switzerland
| | - Maksym Karamash
- Department of Chemistry University of Fribourg Chemin du Musée 7 1700 Fribourg Switzerland
| | - Edwin S. Madivoli
- Department of Chemistry University of Fribourg Chemin du Musée 7 1700 Fribourg Switzerland
| | - Nelly Herault
- Department of Chemistry University of Fribourg Chemin du Musée 7 1700 Fribourg Switzerland
| | - Joana M. Dantas
- UCIBIO-Requimte Departamento de Química Faculdade de Ciências e Tecnologia Universidade NOVA de Lisboa 2829-516 Caparica Portugal
| | - Carlos A. Salgueiro
- UCIBIO-Requimte Departamento de Química Faculdade de Ciências e Tecnologia Universidade NOVA de Lisboa 2829-516 Caparica Portugal
| | - Bernd Giese
- Department of Chemistry University of Fribourg Chemin du Musée 7 1700 Fribourg Switzerland
| | - Katharina M. Fromm
- Department of Chemistry University of Fribourg Chemin du Musée 7 1700 Fribourg Switzerland
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3
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Chabert V, Babel L, Füeg MP, Karamash M, Madivoli ES, Herault N, Dantas JM, Salgueiro CA, Giese B, Fromm KM. Kinetik und Mechanismus der mineralischen Atmung: Eisen‐Häme synchronisieren die Geschwindigkeit des Elektronentransfers. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914873] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Valentin Chabert
- Departement Chemie Universität Freiburg Chemin du Musée 7 1700 Freiburg Schweiz
| | - Lucille Babel
- Departement Chemie Universität Freiburg Chemin du Musée 7 1700 Freiburg Schweiz
| | - Michael P. Füeg
- Departement für Chemie und Biochemie Universität Bern Freiestrasse 3 3012 Bern Schweiz
| | - Maksym Karamash
- Departement Chemie Universität Freiburg Chemin du Musée 7 1700 Freiburg Schweiz
| | - Edwin S. Madivoli
- Departement Chemie Universität Freiburg Chemin du Musée 7 1700 Freiburg Schweiz
| | - Nelly Herault
- Departement Chemie Universität Freiburg Chemin du Musée 7 1700 Freiburg Schweiz
| | - Joana M. Dantas
- UCIBIO-Requimte Departamento de Química Faculdade de Ciências e Tecnologia Universidade NOVA de Lisboa 2829-516 Caparica Portugal
| | - Carlos A. Salgueiro
- UCIBIO-Requimte Departamento de Química Faculdade de Ciências e Tecnologia Universidade NOVA de Lisboa 2829-516 Caparica Portugal
| | - Bernd Giese
- Departement Chemie Universität Freiburg Chemin du Musée 7 1700 Freiburg Schweiz
| | - Katharina M. Fromm
- Departement Chemie Universität Freiburg Chemin du Musée 7 1700 Freiburg Schweiz
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4
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Finelli A, Chabert V, Hérault N, Crochet A, Kim C, Fromm KM. Sequential Multiple-Target Sensor: In 3+, Fe 2+, and Fe 3+ Discrimination by an Anthracene-Based Probe. Inorg Chem 2019. [PMID: 31584806 DOI: 10.1021/acs.inorgchem.9b01478/asset] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Indium is a nonphysiological toxic metal widely used in industry. While misunderstood, its toxicity is proposed to be linked to a perturbation of Fe3+ homeostasis through the binding of In3+ ions to essential iron metalloproteins such as transferrins. Therefore, the monitoring of In3+ and Fe3+ in biological environments is of prime interest for both basic research and diagnosis. Here we report the design of a salen-type anthracene-based probe able to selectively sense and discriminate In3+ and Fe2+/3+ ions by fluoro-colorimetry.
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Affiliation(s)
- Alba Finelli
- Department of Chemistry , University of Fribourg , Ch. du Musée 9 , 1700 Fribourg , Switzerland
| | - Valentin Chabert
- Department of Chemistry , University of Fribourg , Ch. du Musée 9 , 1700 Fribourg , Switzerland
| | - Nelly Hérault
- Department of Chemistry , University of Fribourg , Ch. du Musée 9 , 1700 Fribourg , Switzerland
| | - Aurélien Crochet
- FriMat, Department of Chemistry , University of Fribourg , Ch. du Musée 9 , 1700 Fribourg , Switzerland
| | - Cheal Kim
- Department of Fine Chemistry , Seoul National University of Science and Technology (SeoulTech) , Seoul 139-743 , Republic of Korea
| | - Katharina M Fromm
- Department of Chemistry , University of Fribourg , Ch. du Musée 9 , 1700 Fribourg , Switzerland
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5
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Finelli A, Chabert V, Hérault N, Crochet A, Kim C, Fromm KM. Sequential Multiple-Target Sensor: In3+, Fe2+, and Fe3+ Discrimination by an Anthracene-Based Probe. Inorg Chem 2019; 58:13796-13806. [DOI: 10.1021/acs.inorgchem.9b01478] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alba Finelli
- Department of Chemistry, University of Fribourg, Ch. du Musée 9, 1700 Fribourg, Switzerland
| | - Valentin Chabert
- Department of Chemistry, University of Fribourg, Ch. du Musée 9, 1700 Fribourg, Switzerland
| | - Nelly Hérault
- Department of Chemistry, University of Fribourg, Ch. du Musée 9, 1700 Fribourg, Switzerland
| | - Aurélien Crochet
- FriMat, Department of Chemistry, University of Fribourg, Ch. du Musée 9, 1700 Fribourg, Switzerland
| | - Cheal Kim
- Department of Fine Chemistry, Seoul National University of Science and Technology (SeoulTech), Seoul 139-743, Republic of Korea
| | - Katharina M. Fromm
- Department of Chemistry, University of Fribourg, Ch. du Musée 9, 1700 Fribourg, Switzerland
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6
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Chabert V, Lebrun V, Lebrun C, Latour JM, Sénèque O. Model peptide for anti-sigma factor domain HHCC zinc fingers: high reactivity toward 1O 2 leads to domain unfolding. Chem Sci 2019; 10:3608-3615. [PMID: 30996953 PMCID: PMC6432622 DOI: 10.1039/c9sc00341j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 02/14/2019] [Indexed: 11/25/2022] Open
Abstract
All organisms have to cope with the deleterious effects of reactive oxygen species. Some of them are able to mount a transcriptional response to various oxidative stresses, which involves sensor proteins capable of assessing the redox status of the cell or to detect reactive oxygen species. In this article, we describe the design, synthesis and characterization of Zn·LASD(HHCC), a model for the Zn(Cys)2(His)2 zinc finger site of ChrR, a sensor protein involved in the bacterial defence against singlet oxygen that belongs to the family of zinc-binding anti-sigma factors possessing a characteristic H/C-X24/25-H-X3-C-X2-C motif. The 46-amino acid model peptide LASD(HHCC) was synthetized by solid phase peptide synthesis and its Zn2+-binding properties were investigated using electronic absorption, circular dichroism and NMR. LASD(HHCC) forms a 1 : 1 complex with Zn2+, namely Zn·LASD(HHCC), that adopts a well-defined conformation with the Zn2+ ion capping a 3-helix core that reproduces almost perfectly the fold of the ChrR in the vicinity of its zinc site. H2O2 reacts with Zn·LASD(HHCC) to yield a disulfide with a second order rate constant of 0.030 ± 0.002 M-1 s-1. Zn·LASD(HHCC) reacts rapidly with singlet oxygen to yield sulfinates and sulfonates. A lower limit of the chemical reaction rate constant between Zn·LASD(HHCC) and 1O2 was determined to be 3.9 × 106 M-1 s-1. Therefore, the Zn(Cys)2(His)2 site of Zn·LASD(HHCC) appears to be at least 5 times more reactive toward these two oxidants than that of a classical ββα zinc finger. Consequences for the activation mechanism of ChrR are discussed.
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Affiliation(s)
- Valentin Chabert
- Univ. Grenoble Alpes , CNRS , CEA , BIG , LCBM (UMR 5249) , F-38000 Grenoble , France .
| | - Vincent Lebrun
- Univ. Grenoble Alpes , CNRS , CEA , BIG , LCBM (UMR 5249) , F-38000 Grenoble , France .
| | - Colette Lebrun
- Univ. Grenoble Alpes , CEA , CNRS , INAC-SyMMES , F-38000 Grenoble , France
| | - Jean-Marc Latour
- Univ. Grenoble Alpes , CNRS , CEA , BIG , LCBM (UMR 5249) , F-38000 Grenoble , France .
| | - Olivier Sénèque
- Univ. Grenoble Alpes , CNRS , CEA , BIG , LCBM (UMR 5249) , F-38000 Grenoble , France .
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7
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Chabert V, Hologne M, Sénèque O, Walker O, Fromm KM. Alpha-helical folding of SilE models upon Ag(His)(Met) motif formation. Chem Commun (Camb) 2018; 54:10419-10422. [PMID: 30132476 DOI: 10.1039/c8cc03784a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The SilE protein is suspected to have a prominent role in Ag+ detoxification of silver resistant bacteria. Using model peptides, we elucidated both qualitative and quantitative aspects of the Ag+-induced α-helical structuring role of His- and Met-rich sequences of SilE, improving our understanding of its function within the Sil system.
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Affiliation(s)
- Valentin Chabert
- University of Fribourg, Department of Chemistry, Chemin du Musée 9, 1700 Fribourg, Switzerland.
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8
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Roux A, Isaac M, Chabert V, Denisov SA, McClenaghan ND, Sénèque O. Influence of amino acid sequence in a peptidic Cu+-responsive luminescent probe inspired by the copper chaperone CusF. Org Biomol Chem 2018; 16:5626-5634. [DOI: 10.1039/c8ob01044g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Amino acid sequence influences the luminescence behavior of a family of bio-inspired Cu+-responsive probes.
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Affiliation(s)
- A. Roux
- Univ. Grenoble Alpes
- CNRS
- CEA
- BIG
- LCBM (UMR 5249)
| | - M. Isaac
- Univ. Grenoble Alpes
- CNRS
- CEA
- BIG
- LCBM (UMR 5249)
| | - V. Chabert
- Univ. Grenoble Alpes
- CNRS
- CEA
- BIG
- LCBM (UMR 5249)
| | | | | | - O. Sénèque
- Univ. Grenoble Alpes
- CNRS
- CEA
- BIG
- LCBM (UMR 5249)
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9
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Pellaud S, Bory A, Chabert V, Romanens J, Chaisse-Leal L, Doan AV, Frey L, Gust A, Fromm KM, Mène-Saffrané L. WRINKLED1 and ACYL-COA:DIACYLGLYCEROL ACYLTRANSFERASE1 regulate tocochromanol metabolism in Arabidopsis. New Phytol 2018; 217:245-260. [PMID: 29105089 DOI: 10.1111/nph.14856] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 09/19/2017] [Indexed: 05/08/2023]
Abstract
Photosynthetic organisms such as plants, algae and some cyanobacteria synthesize tocochromanols, a group of compounds that encompasses tocopherols and tocotrienols and that exhibits vitamin E activity in animals. While most vitamin E biosynthetic genes have been identified in plant genomes, regulatory genes controlling tocopherol accumulation are currently unknown. We isolated by forward genetics Arabidopsis enhanced vitamin E (eve) mutants that overaccumulate the classic tocopherols and plastochromanol-8, and a tocochromanol unknown in this species. We mapped eve1 and eve4, and identified the unknown Arabidopsis tocochromanol by using a combination of analytical tools. In addition, we determined its biosynthetic pathway with a series of tocochromanol biosynthetic mutants and transgenic lines. eve1 and eve4 are two seed lipid mutants affecting the WRINKLED1 (WRI1) and ACYL-COA:DIACYLGLYCEROL ACYLTRANSFERASE1 (DGAT1) genes, respectively. The unknown tocochromanol is 11'-12' γ-tocomonoenol, whose biosynthesis is VITAMIN E 1 (VTE1) - and VTE2-dependent and is initiated by the condensation of homogentisate (HGA) and tetrahydrogeranylgeranyl pyrophosphate. This study identifies the first two regulatory genes, WRI1 and DGAT1, that control the synthesis of all tocochromanol forms in seeds, and shows the existence of a metabolic trade-off between lipid and tocochromanol metabolisms. Moreover, it shows that Arabidopsis possesses a tocomonoenol biosynthetic pathway that competes with tocopherol synthesis.
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Affiliation(s)
- Sébastien Pellaud
- Department of Biology, University of Fribourg, Chemin du musée 10, CH-1700, Fribourg, Switzerland
| | - Alexandre Bory
- Department of Biology, University of Fribourg, Chemin du musée 10, CH-1700, Fribourg, Switzerland
| | - Valentin Chabert
- Department of Chemistry, University of Fribourg, Chemin du musée, 9, CH-1700, Fribourg, Switzerland
| | - Joëlle Romanens
- Department of Biology, University of Fribourg, Chemin du musée 10, CH-1700, Fribourg, Switzerland
| | - Laurie Chaisse-Leal
- Department of Biology, University of Fribourg, Chemin du musée 10, CH-1700, Fribourg, Switzerland
| | - Anh Vu Doan
- Department of Biology, University of Fribourg, Chemin du musée 10, CH-1700, Fribourg, Switzerland
| | - Lucas Frey
- Department of Biology, University of Fribourg, Chemin du musée 10, CH-1700, Fribourg, Switzerland
| | - Andrea Gust
- Department of Plant Biochemistry, ZMBP - Center for Plant Molecular Biology, University of Tübingen, Auf der Morgenstelle 32, D-72076, Tübingen, Germany
| | - Katharina M Fromm
- Department of Chemistry, University of Fribourg, Chemin du musée, 9, CH-1700, Fribourg, Switzerland
| | - Laurent Mène-Saffrané
- Department of Biology, University of Fribourg, Chemin du musée 10, CH-1700, Fribourg, Switzerland
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10
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Chabert V, Hologne M, Sénèque O, Crochet A, Walker O, Fromm KM. Model peptide studies of Ag+ binding sites from the silver resistance protein SilE. Chem Commun (Camb) 2017; 53:6105-6108. [DOI: 10.1039/c7cc02630g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A model peptide study characterizes several Ag+-binding sites of the bacterial silver resistant protein SilE, providing new insights into its physiological role.
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Affiliation(s)
- V. Chabert
- Univ. Fribourg
- Department of Chemistry
- 1700 Fribourg
- Switzerland
| | - M. Hologne
- Univ. Lyon
- CNRS
- UCB Lyon 1
- ENS-Lyon
- Institut des Sciences Analytiques
| | - O. Sénèque
- Univ. Grenoble Alpes
- CNRS
- CEA, LCBM (UMR 5249)
- F-38000 Grenoble
- France
| | - A. Crochet
- Univ. Fribourg
- Fribourg Center for Nanomaterials
- FriMat
- 1700 Fribourg
- Switzerland
| | - O. Walker
- Univ. Lyon
- CNRS
- UCB Lyon 1
- ENS-Lyon
- Institut des Sciences Analytiques
| | - K. M. Fromm
- Univ. Fribourg
- Department of Chemistry
- 1700 Fribourg
- Switzerland
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11
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Chabert V, Hologne M, Walker O, Fromm KM. Bacterial resistance to silver: the role of SilE protein. Acta Crystallogr A Found Adv 2016. [DOI: 10.1107/s2053273316099204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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12
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Kottelat E, Chabert V, Crochet A, Fromm KM, Zobi F. Towards Cardiolite‐Inspired Carbon Monoxide Releasing Molecules – Reactivity of d
4
, d
5
Rhenium and d
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Manganese Carbonyl Complexes with Isocyanide Ligands. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500756] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Emmanuel Kottelat
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, 1700 Fribourg, Switzerland, http://www.chem.unifr.ch/en/research/zobi_group
| | - Valentin Chabert
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, 1700 Fribourg, Switzerland, http://www.chem.unifr.ch/en/research/zobi_group
| | - Aurélien Crochet
- Fribourg Center for Nanomaterials (Frimat), University of Fribourg, Chemin du musée 9, 1700 Fribourg, Switzerland
| | - Katharina M. Fromm
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, 1700 Fribourg, Switzerland, http://www.chem.unifr.ch/en/research/zobi_group
| | - Fabio Zobi
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, 1700 Fribourg, Switzerland, http://www.chem.unifr.ch/en/research/zobi_group
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Abstract
Epidemiologic data strongly suggest that upper distribution of body fat and high plasminogen activator inhibitor (PAI) activity are risk factors for cardiovascular disease. Therefore, a link between these two parameters was evaluated by studying 51 menstrually active nondiabetic obese women. In this group positive correlations were observed between body mass index (BMI), waist to hip circumference ratio (W/H ratio, which estimates body fat distribution), plasma insulin, and PAI activity. In addition, plasma triglycerides were related to the W/H ratio and insulin and PAI activity. Partial correlations revealed that BMI was independently and solely related to W/H ratio, which was also independently related to plasma insulin, which in turn related to PAI activity. These results suggest that upper body fat distribution acts as a risk factor of cardiovascular disease through its association with high PAI activity.
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Affiliation(s)
- P Vague
- Service de Médecine Interne et Nutrition, University of Marseilles Medical School, France
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