1
|
Pretelli I, Crittenden AN, Dounias E, Friant S, Koster J, Kramer KL, Mangola SM, Saez AM, Lew-Levy S. Child and adolescent foraging: New directions in evolutionary research. Evol Anthropol 2024; 33:e22020. [PMID: 38214699 DOI: 10.1002/evan.22020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 12/01/2023] [Accepted: 12/27/2023] [Indexed: 01/13/2024]
Abstract
Young children and adolescents in subsistence societies forage for a wide range of resources. They often target child-specific foods, they can be very successful foragers, and they share their produce widely within and outside of their nuclear family. At the same time, while foraging, they face risky situations and are exposed to diseases that can influence their immune development. However, children's foraging has largely been explained in light of their future (adult) behavior. Here, we reinterpret findings from human behavioral ecology, evolutionary medicine and cultural evolution to center foraging children's contributions to life history evolution, community resilience and immune development. We highlight the need to foreground immediate alongside delayed benefits and costs of foraging, including inclusive fitness benefits, when discussing children's food production from an evolutionary perspective. We conclude by recommending that researchers carefully consider children's social and ecological context, develop cross-cultural perspectives, and incorporate children's foraging into Indigenous sovereignty discourse.
Collapse
Affiliation(s)
- Ilaria Pretelli
- Institute for Advanced Study in Toulouse, Toulouse School of Economics, and University of Toulouse Capitole, Toulouse, France
- Department of Human Behavior, Ecology, and Culture, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | | | - Edmond Dounias
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
| | - Sagan Friant
- Department of Anthropology, The Pennsylvania State University, University Park, Pennsylvania, USA
| | - Jeremy Koster
- Department of Human Behavior, Ecology, and Culture, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Karen L Kramer
- Department of Anthropology, University of Utah, Salt Lake City, Utah, USA
| | - Shani M Mangola
- The Law School of Tanzania, Dar es Salaam, Tanzania
- Olanakwe Community Fund, Mang'ola, Tanzania
| | - Almudena Mari Saez
- TransVHIMI Unit, French National Institute for Sustainable Development, IRD, Montpellier, France
| | | |
Collapse
|
2
|
Marqués PS, Kammerer C. Aryl Sulfoxides: A Traceless Directing Group for Catalytic C-H Activation of Arenes. Chempluschem 2024:e202300728. [PMID: 38529705 DOI: 10.1002/cplu.202300728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 03/25/2024] [Accepted: 03/25/2024] [Indexed: 03/27/2024]
Abstract
The transition metal-catalyzed C-H activation of arenes directed by sulfoxides represents a compelling strategy in organic synthesis, owing to its exceptional regioselectivity and high efficiency. This innovative approach stands out for its traceless character, enabling the direct functionalization of arenes, before the easy removal or conversion of the key sulfinyl moiety. Beyond their utility as a directing group, sulfoxides have proved particularly valuable to mediate as chiral auxiliaries, presenting exciting prospects for the synthesis of stereo-enriched compounds upon C-H functionalization. The versatility demonstrated by the method paves the way to different structures with potential applications ranging from medicinal chemistry to organic electronics.
Collapse
Affiliation(s)
- Pablo Simón Marqués
- CEMES, Université de Toulouse, CNRS, 29, rue Marvig, 31055, Toulouse, France
| | - Claire Kammerer
- CEMES, Université de Toulouse, CNRS, 29, rue Marvig, 31055, Toulouse, France
| |
Collapse
|
3
|
Mosheim JR, Ruggieri F, Humeau C, Hance P, Willand N, Hilbert JL, Heuson E, Froidevaux R. Biocatalytic Regioselective O-acylation of Sesquiterpene Lactones from Chicory: A Pathway to Novel Ester Derivatives. Chembiochem 2024; 25:e202300722. [PMID: 38235523 DOI: 10.1002/cbic.202300722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 01/17/2024] [Indexed: 01/19/2024]
Abstract
We report the first biocatalytic modification of sesquiterpene lactones (STLs) found in the chicory plants, specifically lactucin (Lc), 11β,13-dihydrolactucin (DHLc), lactucopicrin (Lp), and 11β,13-dihydrolactucopicrin (DHLp). The selective O-acylation of their primary alcohol group was carried out by the lipase B from Candida antarctica (CAL-B) using various aliphatic vinyl esters as acyl donors. Perillyl alcohol, a simpler monoterpenoid, served as a model to set up the desired O-acetylation reaction by comparing the use of acetic acid and vinyl acetate as acyl donors. Similar conditions were then applied to DHLc, where five novel ester chains were selectively introduced onto the primary alcohol group, with conversions going from >99 % (acetate and propionate) to 69 % (octanoate). The synthesis of the corresponding O-acetyl esters of Lc, Lp, and DHLp was also successfully achieved with near-quantitative conversion. Molecular docking simulations were then performed to elucidate the preferred enzyme-substrate binding modes in the acylation reactions with STLs, as well as to understand their interactions with crucial amino acid residues at the active site. Our methodology enables the selective O-acylation of the primary alcohol group in four different STLs, offering possibilities for synthesizing novel derivatives with significant potential applications in pharmaceuticals or as biocontrol agents.
Collapse
Affiliation(s)
- J Rodriguez Mosheim
- Univ. Lille, INRA, ISA, Univ. Artois, Univ. Littoral Côte d'Opale, EA 7394 - Institut Charles Viollette, Lille, France
| | - F Ruggieri
- Univ. Lille, INRA, ISA, Univ. Artois, Univ. Littoral Côte d'Opale, EA 7394 - Institut Charles Viollette, Lille, France
- Univ. Lille, Inserm, Institut Pasteur de Lille, U1177-Drugs and Molecules for Living Systems, F-59000, Lille, France
| | - C Humeau
- Univ. Lorraine, CNRS, UMR 7274 - Laboratoire Réactions et Génie des Procédés, -, F-54000, Nancy, France
| | - P Hance
- Univ. Lille, INRA, ISA, Univ. Artois, Univ. Littoral Côte d'Opale, EA 7394 - Institut Charles Viollette, Lille, France
- Joint Laboratory University of Lille-Florimond-Desprez CHIC41Health, F-59655, Villeuneve d'Ascq, France
| | - N Willand
- Univ. Lille, Inserm, Institut Pasteur de Lille, U1177-Drugs and Molecules for Living Systems, F-59000, Lille, France
| | - J L Hilbert
- Univ. Lille, INRA, ISA, Univ. Artois, Univ. Littoral Côte d'Opale, EA 7394 - Institut Charles Viollette, Lille, France
- Joint Laboratory University of Lille-Florimond-Desprez CHIC41Health, F-59655, Villeuneve d'Ascq, France
| | - E Heuson
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181-UCCS-, Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| | - R Froidevaux
- Univ. Lille, INRA, ISA, Univ. Artois, Univ. Littoral Côte d'Opale, EA 7394 - Institut Charles Viollette, Lille, France
| |
Collapse
|
4
|
Testoni B, Scholtès C, Plissonnier ML, Paturel A, Berby F, Facchetti F, Villeret F, Degasperi E, Scott B, Hamilton A, Heil M, Lampertico P, Levrero M, Zoulim F. Quantification of circulating HBV RNA expressed from intrahepatic cccDNA in untreated and NUC treated patients with chronic hepatitis B. Gut 2024; 73:659-667. [PMID: 37879886 PMCID: PMC10958289 DOI: 10.1136/gutjnl-2023-330644] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 09/26/2023] [Indexed: 10/27/2023]
Abstract
OBJECTIVE A convenient, reproducible biomarker of hepatitis B virus (HBV) covalently closed circular DNA (cccDNA) transcriptional activity is lacking. We measured circulating HBV RNA (cirB-RNA) in untreated and nucleos(t)ide analogues (NUC) treated chronic hepatitis B (CHB) patients to define its correlation with intrahepatic viral markers and HBV core-related antigen (HBcrAg). DESIGN Paired liver biopsy and serum samples were collected from 122 untreated and 30 NUC-treated CHB patients. We measured cirB-RNA, HBV DNA, hepatitis B surface antigen (HBsAg), HBcrAg and alanine aminotransferase levels. cirB-RNA was quantified using an investigational HBV RNA assay for use on the cobas 6800 system. The test detects a region spanning the HBV canonical polyadenylation site. cccDNA and 3.5 kb RNA in liver tissue were assessed by quantitative PCR and droplet digital PCR. RESULTS cirB-RNA was detectable in 100% of HBeAg(+) chronic hepatitis (CH), 57% and 14% of HBeAg(-) CH and chronic infection untreated patients and 47% of NUC-treated patients. cirB-RNA undetectability was associated with lower intrahepatic cccDNA transcriptional activity, as well as serum HBcrAg, but no significant differences in HBsAg, in both untreated and treated patients. In untreated HBeAg(-) patients, cirB-RNA correlated with intrahepatic 3.5 kb RNA and cccDNA transcriptional activity, serum HBV DNA and HBcrAg, but not with HBsAg or total cccDNA levels. Combined undetectability of both cirB-RNA and HBcrAg detection in untreated HBeAg(-) patients identified a subgroup with the lowest levels of intrahepatic transcriptionally active cccDNA. CONCLUSION Our results support the usefulness of quantification of circulating HBV RNA expressed from cccDNA as an indicator of intrahepatic active viral reservoir in both untreated and NUC-treated CHB patients. TRIAL REGISTRATION NUMBER NCT02602847.
Collapse
Affiliation(s)
- Barbara Testoni
- INSERM U1052, Cancer Research Center of Lyon, Lyon, France
- University of Lyon, UMR_S1052, CRCL, Lyon, France
| | - Caroline Scholtès
- INSERM U1052, Cancer Research Center of Lyon, Lyon, France
- University of Lyon, UMR_S1052, CRCL, Lyon, France
- Department of Virology, Croix Rousse Hospital, Hospices Civils de Lyon, Lyon, France
| | | | - Alexia Paturel
- INSERM U1052, Cancer Research Center of Lyon, Lyon, France
- University of Lyon, UMR_S1052, CRCL, Lyon, France
| | | | - Floriana Facchetti
- Division of Gastroenterology and Hepatology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - François Villeret
- INSERM U1052, Cancer Research Center of Lyon, Lyon, France
- University of Lyon, UMR_S1052, CRCL, Lyon, France
- Department of Hepatology, Croix Rousse Hospital, Hospices Civils de Lyon, Lyon, France
| | - Elisabetta Degasperi
- Division of Gastroenterology and Hepatology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Beth Scott
- Roche Molecular Diagnostics, Pleasanton, California, USA
| | - Aaron Hamilton
- Roche Molecular Diagnostics, Pleasanton, California, USA
| | - Marintha Heil
- Roche Molecular Diagnostics, Pleasanton, California, USA
| | - Pietro Lampertico
- Division of Gastroenterology and Hepatology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- CRC "A. M. and A. Migliavacca" Center for Liver Disease, Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Massimo Levrero
- INSERM U1052, Cancer Research Center of Lyon, Lyon, France
- University of Lyon, UMR_S1052, CRCL, Lyon, France
- Department of Hepatology, Croix Rousse Hospital, Hospices Civils de Lyon, Lyon, France
- Department of Internal Medicine-DMISM and the IIT Center for Life Nanoscience (CLNS), Sapienza University, Rome, Italy
| | - Fabien Zoulim
- INSERM U1052, Cancer Research Center of Lyon, Lyon, France
- University of Lyon, UMR_S1052, CRCL, Lyon, France
- Department of Hepatology, Croix Rousse Hospital, Hospices Civils de Lyon, Lyon, France
| |
Collapse
|
5
|
Nicolas P, Abdallah S, Dok A, de Coene Y, Jeannin O, Bellec N, Malval JP, Verbiest T, Clays K, Van Cleuvenbergen S, Bilgin-Eran B, Akdas-Kiliç H, Camerel F. Non-Linear Optical Activity of Chiral Bipyrimidine-Based Thin Films. Chem Asian J 2024:e202400112. [PMID: 38353579 DOI: 10.1002/asia.202400112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 02/13/2024] [Indexed: 03/01/2024]
Abstract
An original series of bipyrimidine-based chromophores featuring alkoxystyryl donor groups bearing short chiral (S)-2-methylbutyl chains in positions 4, 3,4 and 3,5, connected to electron-accepting 2,2-bipyrimidine rings, has been developed. Their linear and non-linear optical properties were studied using a variety of techniques, including one- and two-photon absorption spectroscopy, fluorescence measurements, as well as Hyper-Rayleigh scattering to determine the first hyperpolarizabilities. Their electronic and geometrical properties were rationalized by TD-DFT calculations. The thermal properties of the compounds were also investigated by a combination of polarized light optical microscopy, differential scanning calorimetry measurements and small-angle X-ray scattering experiments. The derivatives were found not to have mesomorphic properties, but to exhibit melting temperatures or cold crystallization behavior that enabled the isolation of well-organized thin films. The nonlinear optical properties of amorphous or crystalline thin films were studied by wide-field second harmonic generation and multiphoton fluorescence imaging, confirming that non-centrosymmetric crystal organization enables strong second and third harmonic generation. This new series confirms that our strategy of functionalizing 3D organic octupoles with short chiral chains to generate non-centrosymmetric organized thin films enables the development of highly second order nonlinear optical active materials without the use of corona-poling or tedious deposition techniques.
Collapse
Affiliation(s)
- Prescillia Nicolas
- Institut des Sciences Chimiques de Rennes, CNRS-UMR 6226, Université de Rennes, Rennes, France
| | - Stephania Abdallah
- Institut de Science des Matériaux de Mulhouse, CNRS-UMR 7361, Université de Haute Alsace, Mulhouse, France
| | - Ahmet Dok
- Department of Chemistry, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Yovan de Coene
- Department of Chemistry, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Olivier Jeannin
- Institut des Sciences Chimiques de Rennes, CNRS-UMR 6226, Université de Rennes, Rennes, France
| | - Nathalie Bellec
- Institut des Sciences Chimiques de Rennes, CNRS-UMR 6226, Université de Rennes, Rennes, France
| | - Jean-Pierre Malval
- Institut de Science des Matériaux de Mulhouse, CNRS-UMR 7361, Université de Haute Alsace, Mulhouse, France
| | - Thierry Verbiest
- Department of Chemistry, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Koen Clays
- Department of Chemistry, Katholieke Universiteit Leuven, Leuven, Belgium
| | | | | | - Huriye Akdas-Kiliç
- Institut des Sciences Chimiques de Rennes, CNRS-UMR 6226, Université de Rennes, Rennes, France
- Department of Chemistry, Yildiz Technical University, Istanbul, Turkey
| | - Franck Camerel
- Institut des Sciences Chimiques de Rennes, CNRS-UMR 6226, Université de Rennes, Rennes, France
| |
Collapse
|
6
|
Abstract
Across many species, a major function of vocal communication is to convey formidability, with low voice frequencies traditionally considered the main vehicle for projecting large size and aggression. Vocal loudness is often ignored, yet it might explain some puzzling exceptions to this frequency code. Here we demonstrate, through acoustic analyses of over 3,000 human vocalizations and four perceptual experiments, that vocalizers produce low frequencies when attempting to sound large, but loudness is prioritized for displays of strength and aggression. Our results show that, although being loud is effective for signaling strength and aggression, it poses a physiological trade-off with low frequencies because a loud voice is achieved by elevating pitch and opening the mouth wide into a-like vowels. This may explain why aggressive vocalizations are often high-pitched and why open vowels are considered "large" in sound symbolism despite their high first formant. Callers often compensate by adding vocal harshness (nonlinear vocal phenomena) to undesirably high-pitched loud vocalizations, but a combination of low and loud remains an honest predictor of both perceived and actual physical formidability. The proposed notion of a loudness-frequency trade-off thus adds a new dimension to the widely accepted frequency code and requires a fundamental rethinking of the evolutionary forces shaping the form of acoustic signals. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
Collapse
Affiliation(s)
- Andrey Anikin
- Division of Cognitive Science, Department of Philosophy, Lund University
| | - Daria Valente
- ENES Bioacoustics Research Lab/Lyon Neuroscience Research Centre (CRNL), CNRS UMR5292, INSERM UMR-S 1028, University of Saint-Etienne
| | - Katarzyna Pisanski
- ENES Bioacoustics Research Lab/Lyon Neuroscience Research Centre (CRNL), CNRS UMR5292, INSERM UMR-S 1028, University of Saint-Etienne
| | - Clement Cornec
- ENES Bioacoustics Research Lab/Lyon Neuroscience Research Centre (CRNL), CNRS UMR5292, INSERM UMR-S 1028, University of Saint-Etienne
| | - Gregory A Bryant
- Department of Communication, University of California, Los Angeles
| | - David Reby
- ENES Bioacoustics Research Lab/Lyon Neuroscience Research Centre (CRNL), CNRS UMR5292, INSERM UMR-S 1028, University of Saint-Etienne
| |
Collapse
|
7
|
Toullec G, Lyndby NH, Banc-Prandi G, Pogoreutz C, Martin Olmos C, Meibom A, Rädecker N. Symbiotic nutrient exchange enhances the long-term survival of cassiosomes, the autonomous stinging-cell structures of Cassiopea. mSphere 2024; 9:e0032223. [PMID: 38088556 PMCID: PMC10826341 DOI: 10.1128/msphere.00322-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 10/17/2023] [Indexed: 01/31/2024] Open
Abstract
Medusae of the widely distributed upside-down jellyfish Cassiopea release autonomous, mobile stinging structures. These so-called cassiosomes play a role in predator defense and prey capture, and are major contributors to "contactless" stinging incidents in (sub-)tropical shallow waters. While the presence of endosymbiotic dinoflagellates in cassiosomes has previously been observed, their potential contribution to the metabolism and long-term survival of cassiosomes is unknown. Combining stable isotope labeling and correlative scanning electron microscopy and nanoscale secondary ion mass spectrometry imaging with a long-term in vitro experiment, our study reveals a mutualistic symbiosis based on nutritional exchanges in dinoflagellate-bearing cassiosomes. We show that organic carbon input from the dinoflagellates fuels the metabolism of the host tissue and enables anabolic nitrogen assimilation. This symbiotic nutrient exchange enhances the life span of cassiosomes for at least one month in vitro. Overall, our study demonstrates that cassiosomes, in analogy with Cassiopea medusae, are photosymbiotic holobionts. Cassiosomes, which are easily accessible under aquarium conditions, promise to be a powerful new miniaturized model system for in-depth ultrastructural and molecular investigation of cnidarian photosymbioses.IMPORTANCEThe upside-down jellyfish Cassiopea releases autonomous tissue structures, which are a major cause of contactless stinging incidents in (sub-) tropical coastal waters. These so-called cassiosomes frequently harbor algal symbionts, yet their role in cassiosome functioning and survival is unknown. Our results show that cassiosomes are metabolically active and supported by algal symbionts. Algal photosynthesis enhances the cassiosomes long-term survival in the light. This functional understanding of cassiosomes thereby contributes to explaining the prevalence of contactless stinging incidents and the ecological success of some Cassiopea species. Finally, we show that cassiosomes are miniaturized symbiotic holobionts that can be used to study host-microbe interactions in a simplified system.
Collapse
Affiliation(s)
- Gaëlle Toullec
- Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Niclas Heidelberg Lyndby
- Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Guilhem Banc-Prandi
- Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Claudia Pogoreutz
- Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
- PSL Université Paris: EPHE-UPVD-CNRS, UAR 3278 CRIOBE, Université de Perpignan, Perpignan, France
| | - Cristina Martin Olmos
- Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
- Center for Advanced Surface Analysis, Institute of Earth Science, University of Lausanne, Lausanne, Switzerland
| | - Anders Meibom
- Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
- Center for Advanced Surface Analysis, Institute of Earth Science, University of Lausanne, Lausanne, Switzerland
| | - Nils Rädecker
- Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| |
Collapse
|
8
|
Alhamdan F, Potaczek DP, Greulich T, Tost J, Garn H. Reply to correspondence "Extracellular vesicle microRNA signatures as novel biomarkers in obese asthmatics". Allergy 2024. [PMID: 38284263 DOI: 10.1111/all.16042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/11/2024] [Accepted: 01/16/2024] [Indexed: 01/30/2024]
Affiliation(s)
- Fahd Alhamdan
- Translational Inflammation Research Division & Core Facility for Single Cell Multiomics, Member of the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Medical Faculty, Philipps University of Marburg, Marburg, Germany
- Department of Anesthesiology, Critical Care, and Pain Medicine, Cardiac Anesthesia Division, Boston Children's Hospital, Boston, Massachusetts, USA
- Department of Immunology, Harvard Medical School, Boston, Massachusetts, USA
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Daniel P Potaczek
- Translational Inflammation Research Division & Core Facility for Single Cell Multiomics, Member of the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Medical Faculty, Philipps University of Marburg, Marburg, Germany
- Center for Infection and Genomics of the Lung (CIGL), Member of the German Center for Lung Research (DZL) and Universities of Giessen and Marburg Lung Center (UGMLC), Justus Liebig University of Giessen, Giessen, Germany
- Bioscientia MVZ Labor Mittelhessen GmbH, Gießen, Germany
| | - Timm Greulich
- Department of Medicine, Pulmonary and Critical Care Medicine, Member of the German Center for Lung Research (DZL), University Medical Center Giessen and Marburg, Marburg, Germany
| | - Jörg Tost
- Laboratory for Epigenetics & Environment, Centre National de Recherche en Génomique Humaine, CEA-Institut de Biologie François Jacob, Université Paris-Saclay, Evry, France
| | - Holger Garn
- Translational Inflammation Research Division & Core Facility for Single Cell Multiomics, Member of the German Center for Lung Research (DZL) and the Universities of Giessen and Marburg Lung Center (UGMLC), Medical Faculty, Philipps University of Marburg, Marburg, Germany
| |
Collapse
|
9
|
Jordan N, Emanuelle R. Hands off, brain off? A meta-analysis of neuroimaging data during active and passive driving. Brain Behav 2023; 13:e3272. [PMID: 37828722 PMCID: PMC10726911 DOI: 10.1002/brb3.3272] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 09/21/2023] [Accepted: 09/23/2023] [Indexed: 10/14/2023] Open
Abstract
BACKGROUND Car driving is more and more automated, to such an extent that driving without active steering control is becoming a reality. Although active driving requires the use of visual information to guide actions (i.e., steering the vehicle), passive driving only requires looking at the driving scene without any need to act (i.e., the human is passively driven). MATERIALS & METHODS After a careful search of the scientific literature, 11 different studies, providing 17 contrasts, were used to run a comprehensive meta-analysis contrasting active driving with passive driving. RESULTS Two brain regions were recruited more consistently for active driving compared to passive driving, the left precentral gyrus (BA3 and BA4) and the left postcentral gyrus (BA4 and BA3/40), whereas a set of brain regions was recruited more consistently in passive driving compared to active driving: the left middle frontal gyrus (BA6), the right anterior lobe and the left posterior lobe of the cerebellum, the right sub-lobar thalamus, the right anterior prefrontal cortex (BA10), the right inferior occipital gyrus (BA17/18/19), the right inferior temporal gyrus (BA37), and the left cuneus (BA17). DISCUSSION From a theoretical perspective, these findings support the idea that the output requirement of the visual scanning process engaged for the same activity can trigger different cerebral pathways, associated with different cognitive processes. A dorsal stream dominance was found during active driving, whereas a ventral stream dominance was obtained during passive driving. From a practical perspective, and contrary to the dominant position in the Human Factors community, our findings support the idea that a transition from passive to active driving would remain challenging as passive and active driving engage distinct neural networks.
Collapse
Affiliation(s)
- Navarro Jordan
- Laboratoire d'Etude des Mécanismes Cognitifs (EA 3082)Université de LyonBron Cedex, LyonFrance
- Institut Universitaire de FranceParisFrance
| | - Reynaud Emanuelle
- Laboratoire d'Etude des Mécanismes Cognitifs (EA 3082)Université de LyonBron Cedex, LyonFrance
| |
Collapse
|
10
|
David T, Mallavialle A, Faget J, Alcaraz LB, Lapierre M, du Roure PD, Laurent-Matha V, Mansouri H, Jarlier M, Martineau P, Roger P, Guiu S, Chardès T, Liaudet-Coopman E. Anti-cathepsin D immunotherapy triggers both innate and adaptive anti-tumour immunity in breast cancer. Br J Pharmacol 2023. [PMID: 38030588 DOI: 10.1111/bph.16291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 11/13/2023] [Accepted: 11/17/2023] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND AND PURPOSE Triple-negative breast cancer (TNBC) has poorer outcomes than other breast cancers (BC), including HER2+ BC. Cathepsin D (CathD) is a poor prognosis marker overproduced by BC cells, hypersecreted in the tumour microenvironment with tumour-promoting activity. Here, we characterized the immunomodulatory activity of the anti-CathD antibody F1 and its improved Fab-aglycosylated version (F1M1) in immunocompetent mouse models of TNBC (C57BL/6 mice harbouring E0771 cell grafts) and HER2-amplified BC (BALB/c mice harbouring TUBO cell grafts). EXPERIMENTAL APPROACH CathD expression was evaluated by western blotting and immunofluorescence, and antibody binding to CathD by ELISA. Antibody anti-tumour efficacy was investigated in mouse models. Immune cell recruitment and activation were assessed by immunohistochemistry, immunophenotyping, and RT-qPCR. KEY RESULTS F1 and F1M1 antibodies remodelled the tumour immune landscape. Both antibodies promoted innate antitumour immunity by preventing the recruitment of immunosuppressive M2-polarized tumour-associated macrophages (TAMs) and by activating natural killer cells in the tumour microenvironment of both models. This translated into a reduction of T-cell exhaustion markers in the tumour microenvironment that could be locally supported by enhanced activation of anti-tumour antigen-presenting cell (M1-polarized TAMs and cDC1 cells) functions. Both antibodies inhibited tumour growth in the highly-immunogenic E0771 model, but only marginally in the immune-excluded TUBO model, indicating that anti-CathD immunotherapy is more relevant for BC with a high immune cell infiltrate, as often observed in TNBC. CONCLUSION AND IMPLICATION Anti-CathD antibody-based therapy triggers the anti-tumour innate and adaptive immunity in preclinical models of BC and is a promising immunotherapy for immunogenic TNBC.
Collapse
Affiliation(s)
- Timothée David
- IRCM, INSERM U1194, Univ Montpellier, ICM, Montpellier, France
| | | | - Julien Faget
- IRCM, INSERM U1194, Univ Montpellier, ICM, Montpellier, France
| | | | - Marion Lapierre
- IRCM, INSERM U1194, Univ Montpellier, ICM, Montpellier, France
| | | | | | - Hanane Mansouri
- IRCM, INSERM U1194, Univ Montpellier, ICM, Montpellier, France
- RHEM, IRCM, Montpellier, France
| | | | | | - Pascal Roger
- IRCM, INSERM U1194, Univ Montpellier, ICM, Montpellier, France
- Department of Pathology, CHU Nîmes, Nîmes, France
| | - Séverine Guiu
- IRCM, INSERM U1194, Univ Montpellier, ICM, Montpellier, France
- Department of Medical Oncology, ICM, Montpellier, France
| | - Thierry Chardès
- IRCM, INSERM U1194, Univ Montpellier, ICM, Montpellier, France
- Centre national de la recherche Scientifique, CNRS, Paris, France
| | | |
Collapse
|
11
|
Caldwell AE, Cummings DK, Hooper PL, Trumble BC, Gurven M, Stieglitz J, Davis HE, Kaplan H. Adolescence is characterized by more sedentary behaviour and less physical activity even among highly active forager-farmers. Proc Biol Sci 2023; 290:20231764. [PMID: 37909080 PMCID: PMC10618868 DOI: 10.1098/rspb.2023.1764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 10/06/2023] [Indexed: 11/02/2023] Open
Abstract
Over 80% of adolescents worldwide are insufficiently active, posing massive public health and economic challenges. Declining physical activity (PA) and sex differences in PA consistently accompany transitions from childhood to adulthood in post-industrialized populations and are attributed to psychosocial and environmental factors. An overarching evolutionary theoretical framework and data from pre-industrialized populations are lacking. This cross-sectional study tests hypotheses from life history theory, that adolescent PA is inversely related to age, but this association is mediated by Tanner stage, reflecting higher and sex-specific energetic demands for growth and reproductive maturation. Detailed measures of PA and pubertal maturation are assessed among Tsimane forager-farmers (age: 7-22 years; 50% female, n = 110). Most Tsimane sampled (71%) meet World Health Organization PA guidelines (greater than or equal to 60 min/day of moderate-to-vigorous PA). Like post-industrialized populations, sex differences and inverse age-activity associations were observed. Tanner stage significantly mediated age-activity associations. Adolescence presents difficulties to PA engagement that warrant further consideration in PA intervention approaches to improve public health.
Collapse
Affiliation(s)
- Ann E. Caldwell
- Department of Medicine, Division of Endocrinology, Metabolism and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | | | - Paul L. Hooper
- Economic Science Institute, Chapman University, Orange, CA, USA
- Department of Anthropology, University of New Mexico, Albuquerque, NM, USA
| | - Benjamin C. Trumble
- Center for Evolution and Medicine, Arizona State University, Tempe, AZ, USA
- School of Human Evolution and Social Change, Arizona State University, Tempe, AZ, USA
| | - Michael Gurven
- Department of Anthropology, University of California Santa Barbara, Santa Barbara, CA, USA
| | - Jonathan Stieglitz
- Institute for Advanced Study in Toulouse, Université Toulouse 1 Capitole Toulouse, France
| | - Helen E. Davis
- School of Human Evolution and Social Change, Arizona State University, Tempe, AZ, USA
- Department of Anthropology, Harvard University, Boston, MA, USA
| | - Hillard Kaplan
- Economic Science Institute, Chapman University, Orange, CA, USA
| |
Collapse
|
12
|
Lespinasse J, Dufouil C, Proust-Lima C. Disease progression model anchored around clinical diagnosis in longitudinal cohorts: example of Alzheimer's disease and related dementia. BMC Med Res Methodol 2023; 23:199. [PMID: 37670234 PMCID: PMC10478286 DOI: 10.1186/s12874-023-02009-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 08/04/2023] [Indexed: 09/07/2023] Open
Abstract
BACKGROUND Alzheimer's disease and related dementia (ADRD) are characterized by multiple and progressive anatomo-clinical changes including accumulation of abnormal proteins in the brain, brain atrophy and severe cognitive impairment. Understanding the sequence and timing of these changes is of primary importance to gain insight into the disease natural history and ultimately allow earlier diagnosis. Yet, modeling changes over disease course from cohort data is challenging as the usual timescales (time since inclusion, chronological age) are inappropriate and time-to-clinical diagnosis is available on small subsamples of participants with short follow-up durations prior to diagnosis. One solution to circumvent this challenge is to define the disease time as a latent variable. METHODS We developed a multivariate mixed model approach that realigns individual trajectories into the latent disease time to describe disease progression. In contrast with the existing literature, our methodology exploits the clinical diagnosis information as a partially observed and approximate reference to guide the estimation of the latent disease time. The model estimation was carried out in the Bayesian Framework using Stan. We applied the methodology to the MEMENTO study, a French multicentric clinic-based cohort of 2186 participants with 5-year intensive follow-up. Repeated measures of 12 ADRD markers stemmed from cerebrospinal fluid (CSF), brain imaging and cognitive tests were analyzed. RESULTS The estimated latent disease time spanned over twenty years before the clinical diagnosis. Considering the profile of a woman aged 70 with a high level of education and APOE4 carrier (the main genetic risk factor for ADRD), CSF markers of tau proteins accumulation preceded markers of brain atrophy by 5 years and cognitive decline by 10 years. However we observed that individual characteristics could substantially modify the sequence and timing of these changes, in particular for CSF level of A[Formula: see text]. CONCLUSION By leveraging the available clinical diagnosis timing information, our disease progression model does not only realign trajectories into the most homogeneous way. It accounts for the inherent residual inter-individual variability in dementia progression to describe the long-term anatomo-clinical degradations according to the years preceding clinical diagnosis, and to provide clinically meaningful information on the sequence of events. TRIAL REGISTRATION clinicaltrials.gov, NCT01926249. Registered on 16 August 2013.
Collapse
Affiliation(s)
- Jérémie Lespinasse
- Univ. Bordeaux, Inserm, Bordeaux Population Health Research Center, BPH, U1219, 33000, Bordeaux, France
- Inserm, CIC1401-EC, 33000, Bordeaux, France
- Pôle de santé publique, Centre Hospitalier Universitaire (CHU) de Bordeaux, 33000, Bordeaux, France
| | - Carole Dufouil
- Univ. Bordeaux, Inserm, Bordeaux Population Health Research Center, BPH, U1219, 33000, Bordeaux, France
- Inserm, CIC1401-EC, 33000, Bordeaux, France
- Pôle de santé publique, Centre Hospitalier Universitaire (CHU) de Bordeaux, 33000, Bordeaux, France
| | - Cécile Proust-Lima
- Univ. Bordeaux, Inserm, Bordeaux Population Health Research Center, BPH, U1219, 33000, Bordeaux, France.
- Inserm, CIC1401-EC, 33000, Bordeaux, France.
| |
Collapse
|
13
|
Messina E, de Souza CP, Cappella C, Barile SN, Scarcia P, Pisano I, Palmieri L, Nicaud JM, Agrimi G. Genetic inactivation of the Carnitine/Acetyl-Carnitine mitochondrial carrier of Yarrowia lipolytica leads to enhanced odd-chain fatty acid production. Microb Cell Fact 2023; 22:128. [PMID: 37443049 DOI: 10.1186/s12934-023-02137-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND Mitochondrial carriers (MCs) can deeply affect the intracellular flux distribution of metabolic pathways. The manipulation of their expression level, to redirect the flux toward the production of a molecule of interest, is an attractive target for the metabolic engineering of eukaryotic microorganisms. The non-conventional yeast Yarrowia lipolytica is able to use a wide range of substrates. As oleaginous yeast, it directs most of the acetyl-CoA therefrom generated towards the synthesis of lipids, which occurs in the cytoplasm. Among them, the odd-chain fatty acids (OCFAs) are promising microbial-based compounds with several applications in the medical, cosmetic, chemical and agricultural industries. RESULTS In this study, we have identified the MC involved in the Carnitine/Acetyl-Carnitine shuttle in Y. lipolytica, YlCrc1. The Y. lipolytica Ylcrc1 knock-out strain failed to grow on ethanol, acetate and oleic acid, demonstrating the fundamental role of this MC in the transport of acetyl-CoA from peroxisomes and cytoplasm into mitochondria. A metabolic engineering strategy involving the deletion of YlCRC1, and the recombinant expression of propionyl-CoA transferase from Ralstonia eutropha (RePCT), improved propionate utilization and its conversion into OCFAs. These genetic modifications and a lipogenic medium supplemented with glucose and propionate as the sole carbon sources, led to enhanced accumulation of OCFAs in Y. lipolytica. CONCLUSIONS The Carnitine/Acetyl-Carnitine shuttle of Y. lipolytica involving YlCrc1, is the sole pathway for transporting peroxisomal or cytosolic acetyl-CoA to mitochondria. Manipulation of this carrier can be a promising target for metabolic engineering approaches involving cytosolic acetyl-CoA, as demonstrated by the effect of YlCRC1 deletion on OCFAs synthesis.
Collapse
Affiliation(s)
- Eugenia Messina
- Department of Biosciences, Biotechnology and Environment, University of Bari "Aldo Moro", Campus Universitario, via Orabona 4, Bari, 70125, Italy
- Université Paris-Saclay, INRAE, Micalis Institute, Jouy-en-Josas, 78350, AgroParisTech, France
| | - Camilla Pires de Souza
- Université Paris-Saclay, INRAE, Micalis Institute, Jouy-en-Josas, 78350, AgroParisTech, France
| | - Claudia Cappella
- Department of Biosciences, Biotechnology and Environment, University of Bari "Aldo Moro", Campus Universitario, via Orabona 4, Bari, 70125, Italy
| | - Simona Nicole Barile
- Department of Biosciences, Biotechnology and Environment, University of Bari "Aldo Moro", Campus Universitario, via Orabona 4, Bari, 70125, Italy
| | - Pasquale Scarcia
- Department of Biosciences, Biotechnology and Environment, University of Bari "Aldo Moro", Campus Universitario, via Orabona 4, Bari, 70125, Italy
| | - Isabella Pisano
- Department of Biosciences, Biotechnology and Environment, University of Bari "Aldo Moro", Campus Universitario, via Orabona 4, Bari, 70125, Italy
| | - Luigi Palmieri
- Department of Biosciences, Biotechnology and Environment, University of Bari "Aldo Moro", Campus Universitario, via Orabona 4, Bari, 70125, Italy
- Bioenergetics and Molecular Biotechnologies (IBIOM), CNR Institute of Biomembranes, Campus Universitario, via Orabona 4, Bari, 70125, Italy
| | - Jean-Marc Nicaud
- Université Paris-Saclay, INRAE, Micalis Institute, Jouy-en-Josas, 78350, AgroParisTech, France.
| | - Gennaro Agrimi
- Department of Biosciences, Biotechnology and Environment, University of Bari "Aldo Moro", Campus Universitario, via Orabona 4, Bari, 70125, Italy.
| |
Collapse
|
14
|
Merlino M, Gaudin JC, Dardevet M, Martre P, Ravel C, Boudet J. Wheat DOF transcription factors TaSAD and WPBF regulate glutenin gene expression in cooperation with SPA. PLoS One 2023; 18:e0287645. [PMID: 37352279 PMCID: PMC10289392 DOI: 10.1371/journal.pone.0287645] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 06/12/2023] [Indexed: 06/25/2023] Open
Abstract
Grain storage proteins (GSPs) quantity and composition determine the end-use value of wheat flour. GSPs consists of low-molecular-weight glutenins (LMW-GS), high-molecular-weight glutenins (HMW-GS) and gliadins. GSP gene expression is controlled by a complex network of DNA-protein and protein-protein interactions, which coordinate the tissue-specific protein expression during grain development. The regulatory network has been most extensively studied in barley, particularly the two transcription factors (TFs) of the DNA binding with One Finger (DOF) family, barley Prolamin-box Binding Factor (BPBF) and Scutellum and Aleurone-expressed DOF (SAD). They activate hordein synthesis by binding to the Prolamin box, a motif in the hordein promoter. The BPBF ortholog previously identified in wheat, WPBF, has a transcriptional activity in expression of some GSP genes. Here, the wheat ortholog of SAD, named TaSAD, was identified. The binding of TaSAD to GSP gene promoter sequences in vitro and its transcriptional activity in vivo were investigated. In electrophoretic mobility shift assays, recombinant TaSAD and WPBF proteins bound to cis-motifs like those located on HMW-GS and LMW-GS gene promoters known to bind DOF TFs. We showed by transient expression assays in wheat endosperms that TaSAD and WPBF activate GSP gene expression. Moreover, co-bombardment of Storage Protein Activator (SPA) with WPBF or TaSAD had an additive effect on the expression of GSP genes, possibly through conserved cooperative protein-protein interactions.
Collapse
Affiliation(s)
- Marielle Merlino
- INRAE, Clermont Auvergne University, UMR GDEC, Clermont-Ferrand, France
| | | | - Mireille Dardevet
- INRAE, Clermont Auvergne University, UMR GDEC, Clermont-Ferrand, France
| | - Pierre Martre
- LEPSE, Univ. Montpellier, INRAE, Institut Agro Montpellier, Montpellier, France
| | - Catherine Ravel
- INRAE, Clermont Auvergne University, UMR GDEC, Clermont-Ferrand, France
| | - Julie Boudet
- INRAE, Clermont Auvergne University, UMR GDEC, Clermont-Ferrand, France
| |
Collapse
|
15
|
Allweiss L, Testoni B, Yu M, Lucifora J, Ko C, Qu B, Lütgehetmann M, Guo H, Urban S, Fletcher SP, Protzer U, Levrero M, Zoulim F, Dandri M. Quantification of the hepatitis B virus cccDNA: evidence-based guidelines for monitoring the key obstacle of HBV cure. Gut 2023; 72:972-983. [PMID: 36707234 PMCID: PMC10086470 DOI: 10.1136/gutjnl-2022-328380] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 01/15/2023] [Indexed: 01/29/2023]
Abstract
OBJECTIVES A major goal of curative hepatitis B virus (HBV) treatments is the reduction or inactivation of intrahepatic viral covalently closed circular DNA (cccDNA). Hence, precise cccDNA quantification is essential in preclinical and clinical studies. Southern blot (SB) permits cccDNA visualisation but lacks sensitivity and is very laborious. Quantitative PCR (qPCR) has no such limitations but inaccurate quantification due to codetection of viral replicative intermediates (RI) can occur. The use of different samples, preservation conditions, DNA extraction, nuclease digestion methods and qPCR strategies has hindered standardisation. Within the ICE-HBV consortium, available and novel protocols for cccDNA isolation and qPCR quantification in liver tissues and cell cultures were compared in six laboratories to develop evidence-based guidance for best practices. DESIGN Reference material (HBV-infected humanised mouse livers and HepG2-NTCP cells) was exchanged for cross-validation. Each group compared different DNA extraction methods (Hirt extraction, total DNA extraction with or without proteinase K treatment (+PK/-PK)) and nuclease digestion protocols (plasmid-safe ATP-dependent DNase (PSD), T5 exonuclease, exonucleases I/III). Samples were analysed by qPCR and SB. RESULTS Hirt and -PK extraction reduced coexisting RI forms. However, both cccDNA and the protein-free relaxed circular HBV DNA (pf-rcDNA) form were detected by qPCR. T5 and Exo I/III nucleases efficiently removed all RI forms. In contrast, PSD did not digest pf-rcDNA, but was less prone to induce cccDNA overdigestion. In stabilised tissues (eg, Allprotect), nucleases had detrimental effects on cccDNA. CONCLUSIONS We present here a comprehensive evidence-based guidance for optimising, controlling and validating cccDNA measurements using available qPCR assays.
Collapse
Affiliation(s)
- Lena Allweiss
- I. Medical Clinic and Polyclinic, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- German Center for Infection Research, Hamburg-Lübeck-Borstel-Riems, Munich and Heidelberg sites, Germany
| | - Barbara Testoni
- Cancer Research Center of Lyon, INSERM U1052, Lyon University, Hospices de Lyon, Lyon, France
- ANRS HBV Cure Task Force, Lyon, France
| | - Mei Yu
- Gilead Sciences, Foster City, California, USA
| | - Julie Lucifora
- Cancer Research Center of Lyon, INSERM U1052, Lyon University, Hospices de Lyon, Lyon, France
- ANRS HBV Cure Task Force, Lyon, France
- CIRI, Centre International de Recherche en Infectiologie, INSERM U1111, Université Claude Bernard Lyon 1, Lyon, France
| | - Chunkyu Ko
- Institute of Virology, Technical University of Munich, Munchen, Germany
- Infectious Diseases Therapeutic Research Center, Therapeutics & Biotechnology Division, Korea Research Institute of Chemical Technology, Daejeon, Korea (the Republic of)
| | - Bingqian Qu
- Department of Infectious Diseases, Molecular Virology, University Hospital Heidelberg, Heidelberg, Germany
- Division of Veterinary Medicine, Paul-Ehrlich-Institut, Langen, Germany
| | - Marc Lütgehetmann
- German Center for Infection Research, Hamburg-Lübeck-Borstel-Riems, Munich and Heidelberg sites, Germany
- Institute of Medical Microbiology, Virology and Hygiene, University Medical Center Hamburg-Eppendorf Hamburg, Hamburg, Germany
| | - Haitao Guo
- Indiana University School of Medicine, Indianapolis, Indiana, USA
- Department of Microbiology and Molecular Genetics, Cancer Virology Program, UPMC Hillman Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Stephan Urban
- German Center for Infection Research, Hamburg-Lübeck-Borstel-Riems, Munich and Heidelberg sites, Germany
- Department of Infectious Diseases, Molecular Virology, University Hospital Heidelberg, Heidelberg, Germany
| | | | - Ulrike Protzer
- German Center for Infection Research, Hamburg-Lübeck-Borstel-Riems, Munich and Heidelberg sites, Germany
- Institute of Virology, Technical University of Munich, Munchen, Germany
| | - Massimo Levrero
- Cancer Research Center of Lyon, INSERM U1052, Lyon University, Hospices de Lyon, Lyon, France
- ANRS HBV Cure Task Force, Lyon, France
| | - Fabien Zoulim
- Cancer Research Center of Lyon, INSERM U1052, Lyon University, Hospices de Lyon, Lyon, France
- ANRS HBV Cure Task Force, Lyon, France
| | - Maura Dandri
- I. Medical Clinic and Polyclinic, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- German Center for Infection Research, Hamburg-Lübeck-Borstel-Riems, Munich and Heidelberg sites, Germany
| |
Collapse
|
16
|
King AJ, Daly L, Rowe J, Joy KH, Greenwood RC, Devillepoix HA, Suttle MD, Chan QH, Russell SS, Bates HC, Bryson JF, Clay PL, Vida D, Lee MR, O’Brien Á, Hallis LJ, Stephen NR, Tartèse R, Sansom EK, Towner MC, Cupak M, Shober PM, Bland PA, Findlay R, Franchi IA, Verchovsky AB, Abernethy FA, Grady MM, Floyd CJ, Van Ginneken M, Bridges J, Hicks LJ, Jones RH, Mitchell JT, Genge MJ, Jenkins L, Martin PE, Sephton MA, Watson JS, Salge T, Shirley KA, Curtis RJ, Warren TJ, Bowles NE, Stuart FM, Di Nicola L, Györe D, Boyce AJ, Shaw KM, Elliott T, Steele RC, Povinec P, Laubenstein M, Sanderson D, Cresswell A, Jull AJ, Sýkora I, Sridhar S, Harrison RJ, Willcocks FM, Harrison CS, Hallatt D, Wozniakiewicz PJ, Burchell MJ, Alesbrook LS, Dignam A, Almeida NV, Smith CL, Clark B, Humphreys-Williams ER, Schofield PF, Cornwell LT, Spathis V, Morgan GH, Perkins MJ, Kacerek R, Campbell-Burns P, Colas F, Zanda B, Vernazza P, Bouley S, Jeanne S, Hankey M, Collins GS, Young JS, Shaw C, Horak J, Jones D, James N, Bosley S, Shuttleworth A, Dickinson P, McMullan I, Robson D, Smedley AR, Stanley B, Bassom R, McIntyre M, Suttle AA, Fleet R, Bastiaens L, Ihász MB, McMullan S, Boazman SJ, Dickeson ZI, Grindrod PM, Pickersgill AE, Weir CJ, Suttle FM, Farrelly S, Spencer I, Naqvi S, Mayne B, Skilton D, Kirk D, Mounsey A, Mounsey SE, Mounsey S, Godfrey P, Bond L, Bond V, Wilcock C, Wilcock H, Wilcock R. The Winchcombe meteorite, a unique and pristine witness from the outer solar system. Sci Adv 2022; 8:eabq3925. [PMID: 36383648 PMCID: PMC9668287 DOI: 10.1126/sciadv.abq3925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 10/20/2022] [Indexed: 06/16/2023]
Abstract
Direct links between carbonaceous chondrites and their parent bodies in the solar system are rare. The Winchcombe meteorite is the most accurately recorded carbonaceous chondrite fall. Its pre-atmospheric orbit and cosmic-ray exposure age confirm that it arrived on Earth shortly after ejection from a primitive asteroid. Recovered only hours after falling, the composition of the Winchcombe meteorite is largely unmodified by the terrestrial environment. It contains abundant hydrated silicates formed during fluid-rock reactions, and carbon- and nitrogen-bearing organic matter including soluble protein amino acids. The near-pristine hydrogen isotopic composition of the Winchcombe meteorite is comparable to the terrestrial hydrosphere, providing further evidence that volatile-rich carbonaceous asteroids played an important role in the origin of Earth's water.
Collapse
Affiliation(s)
- Ashley J. King
- Natural History Museum, London SW7 5BD, UK
- System for Capture of Asteroid and Meteorite Paths (SCAMP), UK
- UK Fireball Alliance (UKFAll), UK
| | - Luke Daly
- UK Fireball Alliance (UKFAll), UK
- University of Glasgow, Glasgow G12 8QQ, UK
- University of Oxford, Oxford OX1 3AN, UK
- University of Sydney, Sydney 2006, NSW, Australia
- UK Fireball Network (UKFN), UK
| | - James Rowe
- System for Capture of Asteroid and Meteorite Paths (SCAMP), UK
- UK Fireball Alliance (UKFAll), UK
| | - Katherine H. Joy
- UK Fireball Alliance (UKFAll), UK
- The University of Manchester, Manchester M13 9PL, UK
| | | | | | - Martin D. Suttle
- Natural History Museum, London SW7 5BD, UK
- UK Fireball Network (UKFN), UK
- The Open University, Milton Keynes MK7 6AA, UK
| | - Queenie H. S. Chan
- The Open University, Milton Keynes MK7 6AA, UK
- Royal Holloway, University of London, Egham TW20 0EX, UK
| | | | | | | | | | - Denis Vida
- Western University, London N6A 3K7, Canada
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Finlay M. Stuart
- Scottish Universities Environmental Research Centre (SUERC), East Kilbride G75 0QF, UK
| | - Luigia Di Nicola
- Scottish Universities Environmental Research Centre (SUERC), East Kilbride G75 0QF, UK
| | - Domokos Györe
- Scottish Universities Environmental Research Centre (SUERC), East Kilbride G75 0QF, UK
- Isomass Scientific Inc., Calgary T2H 3A9, Canada
| | - Adrian J. Boyce
- Scottish Universities Environmental Research Centre (SUERC), East Kilbride G75 0QF, UK
| | | | | | | | | | | | - David Sanderson
- Scottish Universities Environmental Research Centre (SUERC), East Kilbride G75 0QF, UK
| | - Alan Cresswell
- Scottish Universities Environmental Research Centre (SUERC), East Kilbride G75 0QF, UK
| | - Anthony J. T. Jull
- University of Arizona, Tucson, AZ 85721, USA
- Institute for Nuclear Research, Debrecen, Hungary
| | - Ivan Sýkora
- Comenius University, Bratislava 842 48, Slovakia
| | | | | | | | - Catherine S. Harrison
- Natural History Museum, London SW7 5BD, UK
- The University of Manchester, Manchester M13 9PL, UK
| | - Daniel Hallatt
- University of Kent, Canterbury CT2 7NH, UK
- Université de Lille, Lille 59000, France
| | | | | | | | | | | | - Caroline L. Smith
- Natural History Museum, London SW7 5BD, UK
- University of Glasgow, Glasgow G12 8QQ, UK
| | | | | | | | | | | | | | | | - Richard Kacerek
- UK Fireball Alliance (UKFAll), UK
- UK Meteor Observation Network (UKMON), UK
| | | | - Francois Colas
- Observatoire de Paris, Paris 75014, France
- Fireball Recovery and InterPlanetary Recovery (FRIPON), France
| | - Brigitte Zanda
- Fireball Recovery and InterPlanetary Recovery (FRIPON), France
- Muséum National d’Histoire Naturelle, Paris 75005, France
| | - Pierre Vernazza
- Fireball Recovery and InterPlanetary Recovery (FRIPON), France
- Aix-Marseille Université, Marseille 13007, France
| | - Sylvain Bouley
- Fireball Recovery and InterPlanetary Recovery (FRIPON), France
- Université Paris-Saclay, Orsay 91405, France
| | - Simon Jeanne
- Observatoire de Paris, Paris 75014, France
- Fireball Recovery and InterPlanetary Recovery (FRIPON), France
| | | | - Gareth S. Collins
- UK Fireball Alliance (UKFAll), UK
- Imperial College London, London SW7 2BP, UK
| | - John S. Young
- UK Fireball Network (UKFN), UK
- University of Cambridge, Cambridge CB2 3EQ, UK
| | - Clive Shaw
- UK Fireball Network (UKFN), UK
- University of Cambridge, Cambridge CB2 3EQ, UK
| | - Jana Horak
- System for Capture of Asteroid and Meteorite Paths (SCAMP), UK
- UK Fireball Alliance (UKFAll), UK
- Amgueddfa Cymru—National Museum Wales, Cardiff CF10 3NP, UK
| | - Dave Jones
- UK Meteor Observation Network (UKMON), UK
| | | | | | | | | | | | - Derek Robson
- UK Meteor Observation Network (UKMON), UK
- NEMETODE Network, UK
| | - Andrew R. D. Smedley
- System for Capture of Asteroid and Meteorite Paths (SCAMP), UK
- UK Fireball Alliance (UKFAll), UK
- The University of Manchester, Manchester M13 9PL, UK
| | | | - Richard Bassom
- UK Meteor Observation Network (UKMON), UK
- Global Meteor Network (GMN)
| | - Mark McIntyre
- UK Fireball Alliance (UKFAll), UK
- UK Meteor Observation Network (UKMON), UK
- Global Meteor Network (GMN)
| | | | | | | | | | - Sarah McMullan
- UK Fireball Alliance (UKFAll), UK
- UK Fireball Network (UKFN), UK
- Imperial College London, London SW7 2BP, UK
| | - Sarah J. Boazman
- European Space Research and Technology Centre (ESTEC), Keplerlaan 1, 2201 AZ Noordwijk, Netherlands
| | | | | | - Annemarie E. Pickersgill
- University of Glasgow, Glasgow G12 8QQ, UK
- Scottish Universities Environmental Research Centre (SUERC), East Kilbride G75 0QF, UK
| | | | | | | | | | | | - Ben Mayne
- Toucan Energy Ltd., London SE1 4PG, UK
| | | | - Dan Kirk
- Toucan Energy Ltd., London SE1 4PG, UK
| | | | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Boussuge-Roze J, Boveda S, Mahida S, Anic A, Conte G, Chun JKR, Marijon E, Sacher F, Jais P. Current practices and expectations to reduce environmental impact of electrophysiology catheters: results from an EHRA/LIRYC European physician survey. Europace 2022; 24:1300-1306. [PMID: 35943366 DOI: 10.1093/europace/euac085] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 05/13/2022] [Indexed: 01/13/2023] Open
Abstract
The healthcare sector accounts for nearly 5% of global greenhouse gas emissions (GHG) and is a significant contributor to complex waste. Reducing the environmental impact of technology-heavy medical fields such as cardiac electrophysiology (EP) is a priority. The aim of this survey was to investigate the practice and expectations in European centres on EP catheters environmental sustainability. A 24-item online questionnaire on EP catheters sustainability was disseminated by the EHRA Scientific Initiatives Committee in collaboration with the Lyric Institute. A total of 278 physicians from 42 centres were polled; 62% were motivated to reduce the environmental impact of EP procedures. It was reported that 50% of mapping catheters and 53% of ablation catheters are usually discarded to medical waste, and only 20% and 14% of mapping and ablation catheters re-used. Yet, re-use of catheters was the most commonly cited potential sustainability solution (60% and 57% of physicians for mapping and ablation catheters, respectively). The majority of 69% currently discarded packaging. Reduced (42%) and reusable (39%) packaging also featured prominently as potential sustainable solutions. Lack of engagement from host institutions was the most commonly cited barrier to sustainable practices (59%). Complexity of the process and challenges to behavioral change were other commonly cited barriers (48% and 47%, respectively). The most commonly cited solutions towards more sustainable practices were regulatory changes (31%), education (19%), and product after-use recommendations (19%). In conclusion, EP physicians demonstrate high motivation towards sustainable practices. However, significant engagement and behavioural change, at local institution, regulatory and industry level is required before sustainable practices can be embedded into routine care.
Collapse
Affiliation(s)
- Julie Boussuge-Roze
- Electrophysiology and Heart Modelling institute, IHU Liryc, Univ. Bordeaux, INSERM, CRCTB, U 1045, Campus Xavier Arnozan - Avenue du Haut-Leveque, F-33600 Pessac, France
- CHU de Bordeaux, Department of Electrophysiology and Cardiac Stimulation, F-33000 Bordeaux, France
| | - Serge Boveda
- Clinique Pasteur, Heart Rhythm Department, Toulouse, France
- Universiteit Ziekenhuis Brussel - VUB, Brussels, Belgium
| | - Saagar Mahida
- Electrophysiology and Heart Modelling institute, IHU Liryc, Univ. Bordeaux, INSERM, CRCTB, U 1045, Campus Xavier Arnozan - Avenue du Haut-Leveque, F-33600 Pessac, France
- Department of Cardiac Electrophysiology, Liverpool Heart and Chest Hospital, NHS Trust, UK
| | - Ante Anic
- University Hospital Centre Split, Department for Cardiovascular diseases, Split, Croatia
| | - Giulio Conte
- Cardiology Department, Cardiocentro Ticino Institute, Ente Ospedaliero Cantonale, Lugano, Switzerland
| | - Julian K R Chun
- CCB, Cardiology, Med. Klinik III, Markuskrankenhaus, Frankfurt, Germany
| | - Eloi Marijon
- European Georges Pompidou Hospital and Paris City University, Cardiology Department, Paris, France
| | - Frederic Sacher
- Electrophysiology and Heart Modelling institute, IHU Liryc, Univ. Bordeaux, INSERM, CRCTB, U 1045, Campus Xavier Arnozan - Avenue du Haut-Leveque, F-33600 Pessac, France
- CHU de Bordeaux, Department of Electrophysiology and Cardiac Stimulation, F-33000 Bordeaux, France
| | - Pierre Jais
- Electrophysiology and Heart Modelling institute, IHU Liryc, Univ. Bordeaux, INSERM, CRCTB, U 1045, Campus Xavier Arnozan - Avenue du Haut-Leveque, F-33600 Pessac, France
- CHU de Bordeaux, Department of Electrophysiology and Cardiac Stimulation, F-33000 Bordeaux, France
| |
Collapse
|
18
|
Rebouillat P, Vidal R, Cravedi JP, Taupier-Letage B, Debrauwer L, Gamet-Payrastre L, Guillou H, Touvier M, Fezeu LK, Hercberg S, Lairon D, Baudry J, Kesse-Guyot E. Prospective association between dietary pesticide exposure profiles and type 2 diabetes risk in the NutriNet-Santé cohort. Environ Health 2022; 21:57. [PMID: 35614475 PMCID: PMC9131692 DOI: 10.1186/s12940-022-00862-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 04/30/2022] [Indexed: 05/29/2023]
Abstract
BACKGROUND Studies focusing on dietary pesticides in population-based samples are scarce and little is known about potential mixture effects. We aimed to assess associations between dietary pesticide exposure profiles and Type 2 Diabetes (T2D) among NutriNet-Santé cohort participants. METHODS Participants completed a Food Frequency Questionnaire at baseline, assessing conventional and organic food consumption. Exposures to 25 active substances used in European Union pesticides were estimated using the Chemisches und Veterinäruntersuchungsamt Stuttgart residue database accounting for farming practices. T2D were identified through several sources. Exposure profiles were established using Non-Negative Matrix Factorization (NMF), adapted for sparse data. Cox models adjusted for known confounders were used to estimate hazard ratios (HR) and 95% confidence interval (95% CI), for the associations between four NMF components, divided into quintiles (Q) and T2D risk. RESULTS The sample comprised 33,013 participants aged 53 years old on average, including 76% of women. During follow-up (median: 5.95 years), 340 incident T2D cases were diagnosed. Positive associations were detected between NMF component 1 (reflecting highest exposure to several synthetic pesticides) and T2D risk on the whole sample: HRQ5vsQ1 = 1.47, 95% CI (1.00, 2.18). NMF Component 3 (reflecting low exposure to several synthetic pesticides) was associated with a decrease in T2D risk, among those with high dietary quality only (high adherence to French dietary guidelines, including high plant foods consumption): HRQ5vsQ1 = 0.31, 95% CI (0.10, 0.94). CONCLUSIONS These findings suggest a role of dietary pesticide exposure in T2D risk, with different effects depending on which types of pesticide mixture participants are exposed to. These associations need to be confirmed in other types of studies and settings, and could have important implications for developing prevention strategies (regulation, dietary guidelines). TRIAL REGISTRATION This study is registered in ClinicalTrials.gov ( NCT03335644 ).
Collapse
Affiliation(s)
- Pauline Rebouillat
- Nutritional Epidemiology Research Team (EREN), Epidemiology and Statistics Research Center, Sorbonne Paris Nord University, Inserm, INRAE, Cnam, University Paris Cité (CRESS), 74 rue Marcel Cachin, 93017, Bobigny, France.
| | - Rodolphe Vidal
- Institut de L'Agriculture Et de L'Alimentation Biologiques (ITAB), 75595, Paris, France
| | - Jean-Pierre Cravedi
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, 31027, Toulouse, France
| | - Bruno Taupier-Letage
- Institut de L'Agriculture Et de L'Alimentation Biologiques (ITAB), 75595, Paris, France
| | - Laurent Debrauwer
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, 31027, Toulouse, France
| | - Laurence Gamet-Payrastre
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, 31027, Toulouse, France
| | - Hervé Guillou
- Toxalim (Research Centre in Food Toxicology), Université de Toulouse, INRAE, ENVT, INP-Purpan, UPS, 31027, Toulouse, France
| | - Mathilde Touvier
- Nutritional Epidemiology Research Team (EREN), Epidemiology and Statistics Research Center, Sorbonne Paris Nord University, Inserm, INRAE, Cnam, University Paris Cité (CRESS), 74 rue Marcel Cachin, 93017, Bobigny, France
| | - Léopold K Fezeu
- Nutritional Epidemiology Research Team (EREN), Epidemiology and Statistics Research Center, Sorbonne Paris Nord University, Inserm, INRAE, Cnam, University Paris Cité (CRESS), 74 rue Marcel Cachin, 93017, Bobigny, France
- Département de Santé Publique, Hôpital Avicenne, 93017, Bobigny, France
| | - Serge Hercberg
- Nutritional Epidemiology Research Team (EREN), Epidemiology and Statistics Research Center, Sorbonne Paris Nord University, Inserm, INRAE, Cnam, University Paris Cité (CRESS), 74 rue Marcel Cachin, 93017, Bobigny, France
- Département de Santé Publique, Hôpital Avicenne, 93017, Bobigny, France
| | - Denis Lairon
- Aix Marseille Université, INSERM, INRAE, C2VN, 13005, Marseille, France
| | - Julia Baudry
- Nutritional Epidemiology Research Team (EREN), Epidemiology and Statistics Research Center, Sorbonne Paris Nord University, Inserm, INRAE, Cnam, University Paris Cité (CRESS), 74 rue Marcel Cachin, 93017, Bobigny, France
| | - Emmanuelle Kesse-Guyot
- Nutritional Epidemiology Research Team (EREN), Epidemiology and Statistics Research Center, Sorbonne Paris Nord University, Inserm, INRAE, Cnam, University Paris Cité (CRESS), 74 rue Marcel Cachin, 93017, Bobigny, France
| |
Collapse
|
19
|
Atay H, Perivier H, Gemzell-Danielsson K, Guilleminot J, Hassoun D, Hottois J, Gomperts R, Levrier E. Why women choose at-home abortion via teleconsultation in France: drivers of telemedicine abortion during and beyond the COVID-19 pandemic. BMJ Sex Reprod Health 2021; 47:285-292. [PMID: 34321255 PMCID: PMC8326025 DOI: 10.1136/bmjsrh-2021-201176] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 06/24/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVES In an attempt to understand the demand and main drivers of telemedicine abortion, we analysed the requests that Women on Web (WoW), an online telemedicine abortion service operating worldwide, received from France throughout 2020. METHODS We conducted a parallel, convergent, mixed-methods study among 809 consultations received from France at WoW between 1 January and 31 December 2020. We performed a cross-sectional study of data obtained from the WoW consultation survey and a manifest content analysis of anonymised email correspondence of 140 women consulting with the WoW helpdesk from France. FINDINGS We found that women encounter macro-level, individual-level and provider-level constraints while trying to access abortion in France. The preferences and needs over secrecy (n=356, 46.2%), privacy (n=295, 38.3%) and comfort (n=269, 34.9%) are among the most frequent reasons for women from France to choose telemedicine abortion through WoW. The COVID-19 pandemic seems to be an important driver for resorting to telemedicine (n=236, 30.6%). The lockdowns had a significant impact on the number of consultations received at WoW from France, increasing from 60 in March to 128 in April during the first lockdown and from 54 in October to 80 in November during the second lockdown. CONCLUSIONS The demand for at-home medical abortion via teleconsultation increased in France during the lockdowns. However, drivers of telemedicine abortion are multidimensional and go beyond the conditions unique to the pandemic.
Collapse
Affiliation(s)
- Hazal Atay
- Sciences Po Paris, CEVIPOF - Centre for Political Research, Paris, France
- Women on Web International Foundation, Toronto, Ontario, Canada
- Sciences Po Paris, LIEPP - The Laboratory for Interdisciplinary Evaluation of Public Policy, Paris, France
| | - Helene Perivier
- Sciences Po Paris, OFCE - French Economic Observatory, Paris, France
| | | | | | | | | | | | - Emmanuelle Levrier
- Sciences Po Paris, LIEPP - The Laboratory for Interdisciplinary Evaluation of Public Policy, Paris, France
| |
Collapse
|
20
|
Abstract
Communication policies employed by policymakers and non-governmental organizations (NGOs) often appeal to the emotions to persuade people to adopt virtuous behavior. The aim of this paper is to study the impact of induced emotions on pro-environmental behavior (PEB). We design a three-stage laboratory experiment. In the first stage, we determine the level of the subjects’ environmental awareness. In the second stage, subjects read scripts that place them in realistic hypothetical scenarios designed to induce specific emotions. We implement a 2 x 2 in-between design by varying both the valence and social dimension of the four emotional states induced: happiness, sadness, pride and shame. In the third stage, subjects play a modified dictator game in which the recipient is an environmental non-governmental organization (ENGO). We show that the emotional states of subjects can influence PEB. In particular, negative emotions significantly reduce the average individual amount of donations made to ENGOs. We also find that the precise impact of the emotional states is more complex and appears to be dependent on individuals’ characteristics and awareness for environmental issues. For instance, in positive emotional states, men donate significantly less than women. In addition, a high level of environmental awareness increases donations in subjects experiencing shame and decreases their likelihood to donate when feeling pride. Also, we observe behavioral consistency for negative emotions and rather compensatory behavior for positive emotions.
Collapse
Affiliation(s)
- Lisette Ibanez
- CEE-M, Univ. Montpellier, CNRS, INRAE, Institut Agro, Montpellier, France
| | - Sébastien Roussel
- CEE-M, Univ. Montpellier, CNRS, INRAE, Institut Agro, Univ. Paul Valéry Montpellier, Montpellier, France
- * E-mail:
| |
Collapse
|
21
|
Johansen MD, Shalini, Kumar S, Raynaud C, Quan DH, Britton WJ, Hansbro PM, Kumar V, Kremer L. Biological and Biochemical Evaluation of Isatin-Isoniazid Hybrids as Bactericidal Candidates against Mycobacterium tuberculosis. Antimicrob Agents Chemother 2021; 65:e0001121. [PMID: 33972252 PMCID: PMC8284457 DOI: 10.1128/aac.00011-21] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 05/04/2021] [Indexed: 11/20/2022] Open
Abstract
Tuberculosis remains a leading cause of mortality among infectious diseases worldwide, prompting the need to discover new drugs to fight this disease. We report here the design, synthesis, and antimycobacterial activity of isatin-mono/bis-isoniazid hybrids. Most of the compounds exhibited very high activity against Mycobacterium tuberculosis, with MICs in the range of 0.195 to 0.39 μg/ml, and exerted a more potent bactericidal effect than the standard antitubercular drug isoniazid (INH). Importantly, these compounds were found to be well tolerated at high doses (>200 μg/ml) on Vero kidney cells, leading to high selectivity indices. Two of the most promising hybrids were evaluated for activity in THP-1 macrophages infected with M. tuberculosis, among which compound 11e was found to be slightly more effective than INH. Overexpression of InhA along with cross-resistance determination of the most potent compounds, selection of resistant mutants, and biochemical analysis, allowed us to decipher their mode of action. These compounds effectively inhibited mycolic acid biosynthesis and required KatG to exert their biological effects. Collectively, this suggests that the synthesized isatin-INH hybrids are promising antitubercular molecules for further evaluation in preclinical settings.
Collapse
Affiliation(s)
- Matt D. Johansen
- Centre National de la Recherche Scientifique UMR 9004, Institut de Recherche en Infectiologie de Montpellier (IRIM), Université de Montpellier, Montpellier, France
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, NSW, Australia
| | - Shalini
- Department of Chemistry, Guru Nanak Dev University, Punjab, India
| | - Sumit Kumar
- Department of Chemistry, Guru Nanak Dev University, Punjab, India
| | - Clément Raynaud
- Centre National de la Recherche Scientifique UMR 9004, Institut de Recherche en Infectiologie de Montpellier (IRIM), Université de Montpellier, Montpellier, France
| | - Diana H. Quan
- Tuberculosis Research Program, Centenary Institute, The University of Sydney, Camperdown, NSW, Australia
| | - Warwick J. Britton
- Centenary Institute, The University of Sydney, Camperdown, NSW, Australia
- Department of Clinical Immunology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Philip M. Hansbro
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, NSW, Australia
| | - Vipan Kumar
- Department of Chemistry, Guru Nanak Dev University, Punjab, India
| | - Laurent Kremer
- Centre National de la Recherche Scientifique UMR 9004, Institut de Recherche en Infectiologie de Montpellier (IRIM), Université de Montpellier, Montpellier, France
- INSERM, IRIM, Montpellier, France
| |
Collapse
|
22
|
Bravi F, Lee YCA, Hashibe M, Boffetta P, Conway DI, Ferraroni M, La Vecchia C, Edefonti V. Lessons learned from the INHANCE consortium: An overview of recent results on head and neck cancer. Oral Dis 2021; 27:73-93. [PMID: 32569410 PMCID: PMC7752834 DOI: 10.1111/odi.13502] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 06/04/2020] [Accepted: 06/06/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To summarize the latest evidence on head and neck cancer epidemiology from the International Head and Neck Cancer Epidemiology (INHANCE) consortium. SUBJECTS AND METHODS INHANCE was established in 2004 to elucidate the etiology of head and neck cancer through pooled analyses of individual-level data on a large scale. We summarize results from recent INHANCE-based publications updating our 2015 overview. RESULTS Seventeen papers were published between 2015 and May 2020. These studies further define the nature of risks associated with tobacco and alcohol, and occupational exposures on head and neck cancer. The beneficial effects on incidence of head and neck cancer were identified for good oral health, endogenous and exogenous hormonal factors, and selected aspects of diet related to fruit and vegetables. INHANCE has begun to develop risk prediction models and to pool follow-up data on their studies, finding that ~30% of cases had cancer recurrence and 9% second primary cancers, with overall- and disease-specific 5-year-survival of 51% and 57%, respectively. CONCLUSIONS The number and importance of INHANCE scientific findings provides further evidence of the advantages of large-scale internationally collaborative projects and will support the development of prevention strategies.
Collapse
Affiliation(s)
- Francesca Bravi
- Branch of Medical Statistics, Biometry, and Epidemiology “G. A. Maccacaro”, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milano, Italy
| | - Yuan-Chin Amy Lee
- Division of Public Health, Department of Family & Preventive Medicine, University of Utah School of Medicine, and Huntsman Cancer Institute, Salt Lake City, UT, USA
| | - Mia Hashibe
- Division of Public Health, Department of Family & Preventive Medicine, University of Utah School of Medicine, and Huntsman Cancer Institute, Salt Lake City, UT, USA
| | - Paolo Boffetta
- Stony Brook Cancer Center, Stony Brook University, Stony Brook, NY, USA
- Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy
| | - David I. Conway
- School of Medicine, Dentistry, and Nursing, University of Glasgow, Glasgow, UK
| | - Monica Ferraroni
- Branch of Medical Statistics, Biometry, and Epidemiology “G. A. Maccacaro”, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milano, Italy
| | - Carlo La Vecchia
- Branch of Medical Statistics, Biometry, and Epidemiology “G. A. Maccacaro”, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milano, Italy
| | - Valeria Edefonti
- Branch of Medical Statistics, Biometry, and Epidemiology “G. A. Maccacaro”, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milano, Italy
| |
Collapse
|
23
|
Daher D, Deracinois B, Baniel A, Wattez E, Dantin J, Froidevaux R, Chollet S, Flahaut C. Principal Component Analysis from Mass Spectrometry Data Combined to a Sensory Evaluation as a Suitable Method for Assessing Bitterness of Enzymatic Hydrolysates Produced from Micellar Casein Proteins. Foods 2020; 9:E1354. [PMID: 32987808 PMCID: PMC7598618 DOI: 10.3390/foods9101354] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 09/18/2020] [Accepted: 09/21/2020] [Indexed: 12/03/2022] Open
Abstract
Enzymatic hydrolysis of food proteins generally changes the techno-functional, nutritional, and organoleptic properties of hydrolyzed proteins. As a result, protein hydrolysates have an important interest in the food industries. However, they tend to be characterized by a bitter taste and some off-flavors, which limit their use in the food industry. These tastes and aromas come from peptides, amino acids, and volatile compounds generated during hydrolysis. In this article, sixteen more or less bitter enzymatic hydrolysates produced from a milk protein liquid fraction enriched in micellar caseins using commercially available, food-grade proteases were subjected to a sensory analysis using a trained and validated sensory panel combined to a peptidomics approach based on the peptide characterization by reverse-phase high-performance liquid chromatography, high-resolution mass spectrometry, and bioinformatics software. The comparison between the sensory characteristics and the principal components of the principal component analysis (PCA) of mass spectrometry data reveals that peptidomics constitutes a convenient, valuable, fast, and economic intermediate method to evaluating the bitterness of enzymatic hydrolysates, as a trained sensory panel can do it.
Collapse
Affiliation(s)
- Dahlia Daher
- UMR Transfrontalière BioEcoAgro N° 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, YNCREA, Univ. Artois, Univ. Littoral Côte d’Opale, ICV—Institut Charles Viollette, F-59000 Lille, France; (D.D.); (B.D.); (R.F.); (S.C.)
- Ingredia S.A. 51 Av. Lobbedez-CS 60946, 62033 Arras Cedex, France; (A.B.); (E.W.); (J.D.)
| | - Barbara Deracinois
- UMR Transfrontalière BioEcoAgro N° 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, YNCREA, Univ. Artois, Univ. Littoral Côte d’Opale, ICV—Institut Charles Viollette, F-59000 Lille, France; (D.D.); (B.D.); (R.F.); (S.C.)
| | - Alain Baniel
- Ingredia S.A. 51 Av. Lobbedez-CS 60946, 62033 Arras Cedex, France; (A.B.); (E.W.); (J.D.)
| | - Elodie Wattez
- Ingredia S.A. 51 Av. Lobbedez-CS 60946, 62033 Arras Cedex, France; (A.B.); (E.W.); (J.D.)
| | - Justine Dantin
- Ingredia S.A. 51 Av. Lobbedez-CS 60946, 62033 Arras Cedex, France; (A.B.); (E.W.); (J.D.)
| | - Renato Froidevaux
- UMR Transfrontalière BioEcoAgro N° 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, YNCREA, Univ. Artois, Univ. Littoral Côte d’Opale, ICV—Institut Charles Viollette, F-59000 Lille, France; (D.D.); (B.D.); (R.F.); (S.C.)
| | - Sylvie Chollet
- UMR Transfrontalière BioEcoAgro N° 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, YNCREA, Univ. Artois, Univ. Littoral Côte d’Opale, ICV—Institut Charles Viollette, F-59000 Lille, France; (D.D.); (B.D.); (R.F.); (S.C.)
| | - Christophe Flahaut
- UMR Transfrontalière BioEcoAgro N° 1158, Univ. Lille, INRAE, Univ. Liège, UPJV, YNCREA, Univ. Artois, Univ. Littoral Côte d’Opale, ICV—Institut Charles Viollette, F-59000 Lille, France; (D.D.); (B.D.); (R.F.); (S.C.)
| |
Collapse
|
24
|
Garcia AR, Blackwell AD, Trumble BC, Stieglitz J, Kaplan H, Gurven MD. Evidence for height and immune function trade-offs among preadolescents in a high pathogen population. Evol Med Public Health 2020; 2020:86-99. [PMID: 32983534 PMCID: PMC7502263 DOI: 10.1093/emph/eoaa017] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 05/26/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND In an energy-limited environment, caloric investments in one characteristic should trade-off with investments in other characteristics. In high pathogen ecologies, biasing energy allocation towards immune function over growth would be predicted, given strong selective pressures against early-life mortality. METHODOLOGY In the present study, we use flow cytometry to examine trade-offs between adaptive immune function (T cell subsets, B cells), innate immune function (natural killer cells), adaptive to innate ratio and height-for-age z scores (HAZ) among young children (N = 344; aged 2 months-8 years) in the Bolivian Amazon, using maternal BMI and child weight-for-height z scores (WHZ) as proxies for energetic status. RESULTS Markers of adaptive immune function negatively associate with child HAZ, a pattern most significant in preadolescents (3+ years). In children under three, maternal BMI appears to buffer immune and HAZ associations, while child energetic status (WHZ) moderates relationships in an unexpected direction: HAZ and immune associations are greater in preadolescents with higher WHZ. Children with low WHZ maintain similar levels of adaptive immune function, but are shorter compared to high WHZ peers. CONCLUSIONS Reduced investment in growth in favor of immunity may be necessary for survival in high pathogen contexts, even under energetic constraints. Further, genetic and environmental factors are important considerations for understanding variation in height within this population. These findings prompt consideration of whether there may be a threshold of investment into adaptive immunity required for survival in high pathogen environments, and thus question the universal relevance of height as a marker of health. LAY SUMMARY Adaptive immune function is negatively associated with child height in this high pathogen environment. Further, low weight-for-height children are shorter but maintain similar immune levels. Findings question the relevance of height as a universal health marker, given that costs and benefits of height versus immunity may be calibrated to local ecology.
Collapse
Affiliation(s)
- Angela R Garcia
- Center for Evolution and Medicine, Arizona State University, 427 E Tyler Mall, Tempe, AZ 85281, USA
- School of Life Sciences, Arizona State University, 427 E Tyler Mall, Tempe, AZ 85281, USA
| | - Aaron D Blackwell
- Department of Anthropology, Washington State University, Pullman, WA 99163, USA
| | - Benjamin C Trumble
- Center for Evolution and Medicine, Arizona State University, 427 E Tyler Mall, Tempe, AZ 85281, USA
- School of Human Evolution and Social Change, Arizona State University, 900 Cady Mall, Tempe, AZ 85281, USA
| | - Jonathan Stieglitz
- Université Toulouse 1 Capitole, espanade de l’Université 21, Allée de Brienne, Toulouse Cedex 06 31080, France
- Institute for Advanced Study in Toulouse, espanade de l’Université 21, Allée de Brienne, Toulouse Cedex 06 31080, France
| | - Hillard Kaplan
- Economic Science Institute, Chapman University, One University Drive, Orange, CA 92866, USA
| | - Michael D Gurven
- Department of Anthropology, University of California, Santa Barbara, CA 93106, USA
| |
Collapse
|
25
|
Laajaj R, Macours K, Masso C, Thuita M, Vanlauwe B. Reconciling yield gains in agronomic trials with returns under African smallholder conditions. Sci Rep 2020; 10:14286. [PMID: 32868856 PMCID: PMC7459313 DOI: 10.1038/s41598-020-71155-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 08/03/2020] [Indexed: 11/09/2022] Open
Abstract
Increased adoption of improved agricultural technologies is considered an essential step to address global poverty and hunger, and agronomic trials suggest intensification in developing countries could result in large yield gains. Yet the promise of new technologies does not always carry over from trials to real-life conditions, and diffusion of many technologies remains limited. We show how parcel and farmer selection, together with behavioural responses in agronomic trials, can explain why yield gain estimates from trials may differ from the yield gains of smallholders using the same inputs under real-life conditions. We provide quantitative evidence by exploiting variation in farmer selection and detailed data collection from research trials in Western Kenya on which large yield increments were observed from improved input packages for maize and soybean. After adjusting for selection, behavioural responses, and other corrections, estimates of yield gains fall to being not significantly different from zero for the input package tested on one of the crops (soybean), but remain high for the other (maize). These results suggest that testing new agricultural technologies in real-world conditions and without researcher interference early in the agricultural research and development process might help with identifying which innovations are more likely to be taken up at scale.
Collapse
Affiliation(s)
- Rachid Laajaj
- Universidad de Los Andes, Calle 19A No. 1-37 Este, Edificio W, Bogota, Colombia
| | - Karen Macours
- Paris School of Economics, INRAE, 48 Boulevard Jourdan, 75014, Paris, France.
| | - Cargele Masso
- IITA, c/o ICIPE, P.O. Box 30772-00100, Nairobi, Kenya
| | - Moses Thuita
- IITA, c/o ICIPE, P.O. Box 30772-00100, Nairobi, Kenya
| | | |
Collapse
|
26
|
Rovezzi M, Harris A, Detlefs B, Bohdan T, Svyazhin A, Santambrogio A, Degler D, Baran R, Reynier B, Noguera Crespo P, Heyman C, Van Der Kleij HP, Van Vaerenbergh P, Marion P, Vitoux H, Lapras C, Verbeni R, Kocsis MM, Manceau A, Glatzel P. TEXS: in-vacuum tender X-ray emission spectrometer with 11 Johansson crystal analyzers. J Synchrotron Radiat 2020; 27:813-826. [PMID: 32381786 PMCID: PMC7285681 DOI: 10.1107/s160057752000243x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 02/20/2020] [Indexed: 05/22/2023]
Abstract
The design and first results of a large-solid-angle X-ray emission spectrometer that is optimized for energies between 1.5 keV and 5.5 keV are presented. The spectrometer is based on an array of 11 cylindrically bent Johansson crystal analyzers arranged in a non-dispersive Rowland circle geometry. The smallest achievable energy bandwidth is smaller than the core hole lifetime broadening of the absorption edges in this energy range. Energy scanning is achieved using an innovative design, maintaining the Rowland circle conditions for all crystals with only four motor motions. The entire spectrometer is encased in a high-vacuum chamber that allocates a liquid helium cryostat and provides sufficient space for in situ cells and operando catalysis reactors.
Collapse
Affiliation(s)
- Mauro Rovezzi
- Université Grenoble Alpes, CNRS, IRD, Irstea, Météo France, OSUG, FAME, 71 avenue des Martyrs, CS 40220, 38043 Grenoble, France
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | | | - Blanka Detlefs
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Timothy Bohdan
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Artem Svyazhin
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble, France
- M. N. Miheev Institute of Metal Physics, Ural Branch of the Russian Academy of Science, 620990 Ekaterinburg, Russia
| | - Alessandro Santambrogio
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - David Degler
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Rafal Baran
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Benjamin Reynier
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Pedro Noguera Crespo
- Added Value Solutions (AVS), Pol. Ind. Sigma Xixilion Kalea 2, Bajo Pabellón 10, 20870 Elgoibar, Spain
| | | | - Hans-Peter Van Der Kleij
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Pierre Van Vaerenbergh
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Philippe Marion
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Hugo Vitoux
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Christophe Lapras
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Roberto Verbeni
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Menhard Menyhert Kocsis
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Alain Manceau
- ISTerre, Université Grenoble Alpes, CNRS, CS 40700, 38058 Grenoble, France
| | - Pieter Glatzel
- European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble, France
| |
Collapse
|
27
|
Alami S, von Rueden C, Seabright E, Kraft TS, Blackwell AD, Stieglitz J, Kaplan H, Gurven M. Mother's social status is associated with child health in a horticulturalist population. Proc Biol Sci 2020; 287:20192783. [PMID: 32156217 PMCID: PMC7126073 DOI: 10.1098/rspb.2019.2783] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 02/13/2020] [Indexed: 12/27/2022] Open
Abstract
High social status is often associated with greater mating opportunities and fertility for men, but do women also obtain fitness benefits of high status? Greater resource access and child survivorship may be principal pathways through which social status increases women's fitness. Here, we examine whether peer-rankings of women's social status (indicated by political influence, project leadership, and respect) positively covaries with child nutritional status and health in a community of Amazonian horticulturalists. We find that maternal political influence is associated with improved child health outcomes in models adjusting for maternal age, parental height and weight, level of schooling, household income, family size, and number of kin in the community. Children of politically influential women have higher weight-for-age (B = 0.33; 95% CI = 0.12-0.54), height-for-age (B = 0.32; 95% CI = 0.10-0.54), and weight-for-height (B = 0.24; 95% CI = 0.04-0.44), and they are less likely to be diagnosed with common illnesses (OR = 0.48; 95% CI = 0.31-0.76). These results are consistent with women leveraging their social status to enhance reproductive success through improvements in child health. We discuss these results in light of parental investment theory and the implications for the evolution of female social status in humans.
Collapse
Affiliation(s)
- Sarah Alami
- Department of Anthropology, University of California, Santa Barbara, CA 93106, USA
| | | | - Edmond Seabright
- Department of Anthropology, University of New Mexico, Albuquerque, NM 87131, USA
| | - Thomas S. Kraft
- Department of Anthropology, University of California, Santa Barbara, CA 93106, USA
| | - Aaron D. Blackwell
- Department of Anthropology, Washington State University, Pullman, WA 99163, USA
| | | | - Hillard Kaplan
- Economic Science Institute, Chapman University, Orange, CA, USA
| | - Michael Gurven
- Department of Anthropology, University of California, Santa Barbara, CA 93106, USA
| |
Collapse
|
28
|
Chen K, Fehse M, Laurita A, Arayamparambil JJ, Sougrati MT, Stievano L, Dronskowski R. Quantum-Chemical Study of the FeNCN Conversion-Reaction Mechanism in Lithium- and Sodium-Ion Batteries. Angew Chem Int Ed Engl 2020; 59:3718-3723. [PMID: 31828910 PMCID: PMC7065120 DOI: 10.1002/anie.201914760] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Indexed: 11/12/2022]
Abstract
We report a computational study on 3d transition-metal (Cr, Mn, Fe, and Co) carbodiimides in Li- and Na-ion batteries. The obtained cell voltages semi-quantitatively fit the experiments, highlighting the practicality of PBE+U as an approach for modeling the conversion-reaction mechanism of the FeNCN archetype with lithium and sodium. Also, the calculated voltage profiles agree satisfactorily with experiment both for full (Li-ion battery) and partial (Na-ion battery) discharge, even though experimental atomistic knowledge is missing up to now. Moreover, we rationalize the structural preference of intermediate ternaries and their characteristic lowering in the voltage profile using chemical-bonding and Mulliken-charge analysis. The formation of such ternary intermediates for the lithiation of FeNCN and the contribution of at least one ternary intermediate is also confirmed experimentally. This theoretical approach, aided by experimental findings, supports the atomistic exploration of electrode materials governed by conversion reactions.
Collapse
Affiliation(s)
- Kaixuan Chen
- Chair of Solid-State and Quantum ChemistryInstitute of Inorganic ChemistryRWTH Aachen University52056AachenGermany
| | - Marcus Fehse
- Institut Charles Gerhardt MontpellierCNRSUniversité de Montpellier34095MontpellierFrance
- Alistore—European Research InstituteCNRS80039AmiensFrance
- Dutch-Belgian (DUBBLE)ESRF-The European Synchrotron38043GrenobleFrance
| | - Angelica Laurita
- Institut Charles Gerhardt MontpellierCNRSUniversité de Montpellier34095MontpellierFrance
| | - Jeethu Jiju Arayamparambil
- Institut Charles Gerhardt MontpellierCNRSUniversité de Montpellier34095MontpellierFrance
- Alistore—European Research InstituteCNRS80039AmiensFrance
| | - Moulay Tahar Sougrati
- Institut Charles Gerhardt MontpellierCNRSUniversité de Montpellier34095MontpellierFrance
- Alistore—European Research InstituteCNRS80039AmiensFrance
- Reseau sur le Stockage Electrochimique de l'Energie (RS2E)CNRS80039AmiensFrance
| | - Lorenzo Stievano
- Institut Charles Gerhardt MontpellierCNRSUniversité de Montpellier34095MontpellierFrance
- Alistore—European Research InstituteCNRS80039AmiensFrance
- Reseau sur le Stockage Electrochimique de l'Energie (RS2E)CNRS80039AmiensFrance
| | - Richard Dronskowski
- Chair of Solid-State and Quantum ChemistryInstitute of Inorganic ChemistryRWTH Aachen University52056AachenGermany
- Hoffmann Institute of Advanced MaterialsShenzhen Polytechnic7098 Liuxian BlvdNanshan DistrictShenzhenChina
| |
Collapse
|
29
|
Khalvati K, Park SA, Mirbagheri S, Philippe R, Sestito M, Dreher JC, Rao RPN. Modeling other minds: Bayesian inference explains human choices in group decision-making. Sci Adv 2019; 5:eaax8783. [PMID: 31807706 PMCID: PMC6881156 DOI: 10.1126/sciadv.aax8783] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 09/19/2019] [Indexed: 05/06/2023]
Abstract
To make decisions in a social context, humans have to predict the behavior of others, an ability that is thought to rely on having a model of other minds known as "theory of mind." Such a model becomes especially complex when the number of people one simultaneously interacts with is large and actions are anonymous. Here, we present results from a group decision-making task known as the volunteer's dilemma and demonstrate that a Bayesian model based on partially observable Markov decision processes outperforms existing models in quantitatively predicting human behavior and outcomes of group interactions. Our results suggest that in decision-making tasks involving large groups with anonymous members, humans use Bayesian inference to model the "mind of the group," making predictions of others' decisions while also simulating the effects of their own actions on the group's dynamics in the future.
Collapse
Affiliation(s)
- Koosha Khalvati
- Paul G. Allen School of Computer Science and Engineering, University of Washington, Seattle, WA, USA
| | - Seongmin A. Park
- Center for Mind and Brain, University of California, Davis, Davis, CA, USA
- Neuroeconomics Laboratory, Institut des Sciences Cognitives Marc Jeannerod, Lyon, France
| | | | - Remi Philippe
- Neuroeconomics Laboratory, Institut des Sciences Cognitives Marc Jeannerod, Lyon, France
| | - Mariateresa Sestito
- Neuroeconomics Laboratory, Institut des Sciences Cognitives Marc Jeannerod, Lyon, France
| | - Jean-Claude Dreher
- Neuroeconomics Laboratory, Institut des Sciences Cognitives Marc Jeannerod, Lyon, France
| | - Rajesh P. N. Rao
- Paul G. Allen School of Computer Science and Engineering, University of Washington, Seattle, WA, USA
- Center for Neurotechnology, University of Washington, Seattle, WA, USA
- Corresponding author.
| |
Collapse
|
30
|
Henckel L, Meynard CN, Devictor V, Mouquet N, Bretagnolle V. On the relative importance of space and environment in farmland bird community assembly. PLoS One 2019; 14:e0213360. [PMID: 30856193 PMCID: PMC6411160 DOI: 10.1371/journal.pone.0213360] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 02/20/2019] [Indexed: 11/18/2022] Open
Abstract
The relative contribution of ecological processes in shaping metacommunity dynamics in heavily managed landscapes is still unclear. Here we used two complementary approaches to disentangle the role of environment and spatial effect in farmland bird community assembly in an intensive agro-ecosystem. We hypothesized that the interaction between habitat patches and dispersal should play a major role in such unstable and unpredictable environments. First, we used a metacommunity patterns analysis to characterize species co-occurrences and identify the main drivers of community assembly; secondly, variation partitioning was used to disentangle environmental and geographical factors (such as dispersal limitation) on community structure and composition. We used high spatial resolution data on bird community structure and composition distributed among 260 plots in an agricultural landscape. Species were partitioned into functional classes, and point count stations were classified according to landscape characteristics before applying metacommunity and partitioning analyses within each. Overall we could explain around 20% of the variance in species composition in our system, revealing that stochasticity remains very important at this scale. However, this proportion varies depending on the scale of analysis, and reveals potentially important contributions of environmental filtering and dispersal. These conclusions are further reinforced when the analysis was deconstructed by bird functional classes or by landscape habitat classes, underlining trait-related filters, thus reinforcing the idea that wooded areas in these agroecosystems may represent important sources for a specific group of bird species. Our analysis shows that deconstructing the species assemblages into separate functional groups and types of landscapes, along with a combination of analysis strategies, can help in understanding the mechanisms driving community assembly.
Collapse
Affiliation(s)
- Laura Henckel
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS & Université de La Rochelle, Beauvoir sur Niort, France
| | - Christine N. Meynard
- CBGP, INRA, CIRAD, IRD, Montpellier SupAgro, Univ Montpellier, Montpellier, France
| | - Vincent Devictor
- Institut des Sciences de l'Evolution, Université de Montpellier, CNRS, IRD, EPHE, Place Eugène Bataillon, Montpellier Cedex 05, France
| | - Nicolas Mouquet
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Montpellier, France
| | - Vincent Bretagnolle
- Centre d'Etudes Biologiques de Chizé (CEBC), UMR 7372 CNRS & Université de La Rochelle, Beauvoir sur Niort, France
- LTSER “Zone Atelier Plaine & Val de Sèvre”, Beauvoir sur Niort, France
| |
Collapse
|
31
|
Meyer AJ, Riemer J, Rouhier N. Oxidative protein folding: state-of-the-art and current avenues of research in plants. New Phytol 2019; 221:1230-1246. [PMID: 30230547 DOI: 10.1111/nph.15436] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 08/01/2018] [Indexed: 06/08/2023]
Abstract
Contents Summary 1230 I. Introduction 1230 II. Formation and isomerization of disulfides in the ER and the Golgi apparatus 1231 III. The disulfide relay in the mitochondrial intermembrane space: why are plants different? 1236 IV. Disulfide bond formation on luminal proteins in thylakoids 1240 V. Conclusion 1242 Acknowledgements 1242 References 1242 SUMMARY: Disulfide bonds are post-translational modifications crucial for the structure and function of thousands of proteins. Their formation and isomerization, referred to as oxidative folding, require specific protein machineries found in oxidizing subcellular compartments, namely the endoplasmic reticulum and the associated endomembrane system, the intermembrane space of mitochondria and the thylakoid lumen of chloroplasts. At least one protein component is required for transferring electrons from substrate proteins to an acceptor that is usually molecular oxygen. For oxidation reactions, incoming reduced substrates are oxidized by thiol-oxidoreductase proteins (or domains in case of chimeric proteins), which are usually themselves oxidized by a single thiol oxidase, the enzyme generating disulfide bonds de novo. By contrast, the description of the molecular actors and pathways involved in proofreading and isomerization of misfolded proteins, which require a tightly controlled redox balance, lags behind. Herein we provide a general overview of the knowledge acquired on the systems responsible for oxidative protein folding in photosynthetic organisms, highlighting their particularities compared to other eukaryotes. Current research challenges are discussed including the importance and specificity of these oxidation systems in the context of the existence of reducing systems in the same compartments.
Collapse
Affiliation(s)
- Andreas J Meyer
- INRES-Chemical Signalling, University of Bonn, 53113, Bonn, Germany
| | - Jan Riemer
- Institute of Biochemistry, University of Cologne, 50674, Cologne, Germany
| | | |
Collapse
|
32
|
Guillemin VW, Miranda E, Weitsman J. Convexity of the moment map image for torus actions on bm -symplectic manifolds. Philos Trans A Math Phys Eng Sci 2018; 376:rsta.2017.0420. [PMID: 30224414 PMCID: PMC6158381 DOI: 10.1098/rsta.2017.0420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/17/2018] [Indexed: 06/08/2023]
Abstract
We prove a convexity theorem for the image of the moment map of a Hamiltonian torus action on a bm -symplectic manifold.This article is part of the theme issue 'Finite dimensional integrable systems: new trends and methods'.
Collapse
Affiliation(s)
| | - Eva Miranda
- Department of Mathematics, Universitat Politècnica de Catalunya and BGSMath, Barcelona, Spain
- IMCCE, CNRS-UMR8028, Observatoire de Paris, PSL University, Sorbonne Université, 77 Avenue Denfert-Rochereau, 75014 Paris, France
| | - Jonathan Weitsman
- Department of Mathematics, Northeastern University, Boston, MA 02115, USA
| |
Collapse
|
33
|
Rubin M, Altwegg K, Balsiger H, Bar-Nun A, Berthelier JJ, Briois C, Calmonte U, Combi M, De Keyser J, Fiethe B, Fuselier SA, Gasc S, Gombosi TI, Hansen KC, Kopp E, Korth A, Laufer D, Le Roy L, Mall U, Marty B, Mousis O, Owen T, Rème H, Sémon T, Tzou CY, Waite JH, Wurz P. Krypton isotopes and noble gas abundances in the coma of comet 67P/Churyumov-Gerasimenko. Sci Adv 2018; 4:eaar6297. [PMID: 29978041 PMCID: PMC6031375 DOI: 10.1126/sciadv.aar6297] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 05/24/2018] [Indexed: 05/15/2023]
Abstract
The Rosetta Orbiter Spectrometer for Ion and Neutral Analysis mass spectrometer Double Focusing Mass Spectrometer on board the European Space Agency's Rosetta spacecraft detected the major isotopes of the noble gases argon, krypton, and xenon in the coma of comet 67P/Churyumov-Gerasimenko. Earlier, it was found that xenon exhibits an isotopic composition distinct from anywhere else in the solar system. However, argon isotopes, within error, were shown to be consistent with solar isotope abundances. This discrepancy suggested an additional exotic component of xenon in comet 67P/Churyumov-Gerasimenko. We show that krypton also exhibits an isotopic composition close to solar. Furthermore, we found the argon to krypton and the krypton to xenon ratios in the comet to be lower than solar, which is a necessity to postulate an addition of exotic xenon in the comet.
Collapse
Affiliation(s)
- Martin Rubin
- Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
- Corresponding author.
| | - Kathrin Altwegg
- Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
- Center for Space and Habitability, University of Bern, Gesellschaftsstrasse 6, CH-3012 Bern, Switzerland
| | - Hans Balsiger
- Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
| | - Akiva Bar-Nun
- Department of Geophysics, Tel Aviv University, Ramat-Aviv, Tel Aviv, Israel
| | - Jean-Jacques Berthelier
- Laboratoire Atmosphères, Milieux, Observations Spatiales, Institut Pierre Simon Laplace, CNRS, Université Pierre et Marie Curie, 4 Place Jussieu, 75252 Paris Cedex 05, France
| | - Christelle Briois
- Laboratoire de Physique et Chimie de l’Environnement et de l’Espace, UMR 6115 CNRS–Université d’Orléans, Orléans, France
| | - Ursina Calmonte
- Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
| | - Michael Combi
- Department of Climate and Space Sciences and Engineering, University of Michigan, 2455 Hayward, Ann Arbor, MI 48109, USA
| | - Johan De Keyser
- Koninklijk Belgisch Instituut voor Ruimte-Aeronomie–Institut Royal Belge d’Aéronomie Spatiale, Ringlaan 3, B-1180 Brussels, Belgium
| | - Björn Fiethe
- Institute of Computer and Network Engineering, Technische Universität Braunschweig, Hans-Sommer-Straße 66, D-38106 Braunschweig, Germany
| | - Stephen A. Fuselier
- Space Science Directorate, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78228, USA
- University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Sebastien Gasc
- Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
| | - Tamas I. Gombosi
- Department of Climate and Space Sciences and Engineering, University of Michigan, 2455 Hayward, Ann Arbor, MI 48109, USA
| | - Kenneth C. Hansen
- Department of Climate and Space Sciences and Engineering, University of Michigan, 2455 Hayward, Ann Arbor, MI 48109, USA
| | - Ernest Kopp
- Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
| | - Axel Korth
- Max-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077 Göttingen, Germany
| | - Diana Laufer
- Department of Geophysics, Tel Aviv University, Ramat-Aviv, Tel Aviv, Israel
| | - Léna Le Roy
- Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
| | - Urs Mall
- Max-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, 37077 Göttingen, Germany
| | - Bernard Marty
- Centre de Recherches Pétrographiques et Géochimiques, CNRS, Université de Lorraine, 15 rue Notre Dame des Pauvres, BP 20, 54501 Vandoeuvre lès Nancy, France
| | - Olivier Mousis
- Laboratoire d’Astrophysique de Marseille, CNRS, Aix-Marseille Université, 13388 Marseille, France
| | - Tobias Owen
- Institute for Astronomy, University of Hawaii, Honolulu, HI 96822, USA
| | - Henri Rème
- Institut de Recherche en Astrophysique et Planétologie, CNRS, Université Paul Sabatier, Observatoire Midi-Pyrénées, 9 Avenue du Colonel Roche, 31028 Toulouse Cedex 4, France
- Centre National d’Études Spatiales, 2 Place Maurice Quentin, 75001 Paris, France
| | - Thierry Sémon
- Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
| | - Chia-Yu Tzou
- Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
| | - Jack H. Waite
- Institute of Computer and Network Engineering, Technische Universität Braunschweig, Hans-Sommer-Straße 66, D-38106 Braunschweig, Germany
| | - Peter Wurz
- Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
- Center for Space and Habitability, University of Bern, Gesellschaftsstrasse 6, CH-3012 Bern, Switzerland
| |
Collapse
|
34
|
Payton L, Sow M, Massabuau JC, Ciret P, Tran D. How annual course of photoperiod shapes seasonal behavior of diploid and triploid oysters, Crassostrea gigas. PLoS One 2017; 12:e0185918. [PMID: 29020114 PMCID: PMC5636115 DOI: 10.1371/journal.pone.0185918] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 09/21/2017] [Indexed: 12/29/2022] Open
Abstract
In this work, we study if ploidy (i.e. number of copies of chromosomes) in the oyster Crassostrea gigas may introduce differences in behavior and in its synchronization by the annual photoperiod. To answer to the question about the effect of the seasonal course of the photoperiod on the behavior of C. gigas according to its ploidy, we quantified valve activity by HFNI valvometry in situ for 1 year in both diploid and triploid oysters. Chronobiological analyses of daily, tidal and lunar rhythms were performed according the annual change of the photoperiod. In parallel, growth and gametogenesis status were measured and spawning events were detected by valvometry. The results showed that triploids had reduced gametogenesis, without spawning events, and approximately three times more growth than diploids. These differences in physiological efforts could explain the result that photoperiod (daylength and/or direction of daylength) differentially drives and modulates seasonal behavior of diploid and triploid oysters. Most differences were observed during long days (spring and summer), where triploids showed longer valve opening duration but lower opening amplitude, stronger daily rhythm and weaker tidal rhythm. During this period, diploids did major gametogenesis and spawning whereas triploids did maximal growth. Differences were also observed in terms of moonlight rhythmicity and neap-spring tidal cycle rhythmicity. We suggest that the seasonal change of photoperiod differentially synchronizes oyster behavior and biological rhythms according to physiological needs based on ploidy.
Collapse
Affiliation(s)
- Laura Payton
- University of Bordeaux, EPOC, UMR 5805, Arcachon, France
- CNRS, EPOC, UMR 5805, Arcachon, France
| | - Mohamedou Sow
- University of Bordeaux, EPOC, UMR 5805, Arcachon, France
| | - Jean-Charles Massabuau
- University of Bordeaux, EPOC, UMR 5805, Arcachon, France
- CNRS, EPOC, UMR 5805, Arcachon, France
| | - Pierre Ciret
- University of Bordeaux, EPOC, UMR 5805, Arcachon, France
- CNRS, EPOC, UMR 5805, Arcachon, France
| | - Damien Tran
- University of Bordeaux, EPOC, UMR 5805, Arcachon, France
- CNRS, EPOC, UMR 5805, Arcachon, France
- * E-mail:
| |
Collapse
|
35
|
Selles B, Zannini F, Couturier J, Jacquot JP, Rouhier N. Atypical protein disulfide isomerases (PDI): Comparison of the molecular and catalytic properties of poplar PDI-A and PDI-M with PDI-L1A. PLoS One 2017; 12:e0174753. [PMID: 28362814 PMCID: PMC5375154 DOI: 10.1371/journal.pone.0174753] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 03/14/2017] [Indexed: 11/18/2022] Open
Abstract
Protein disulfide isomerases are overwhelmingly multi-modular redox catalysts able to perform the formation, reduction or isomerisation of disulfide bonds. We present here the biochemical characterization of three different poplar PDI isoforms. PDI-A is characterized by a single catalytic Trx module, the so-called a domain, whereas PDI-L1a and PDI-M display an a-b-b’-a’ and a°-a-b organisation respectively. Their activities have been tested in vitro using purified recombinant proteins and a series of model substrates as insulin, NADPH thioredoxin reductase, NADP malate dehydrogenase (NADP-MDH), peroxiredoxins or RNase A. We demonstrated that PDI-A exhibited none of the usually reported activities, although the cysteines of the WCKHC active site signature are able to form a disulfide with a redox midpoint potential of -170 mV at pH 7.0. The fact that it is able to bind a [Fe2S2] cluster upon Escherichia coli expression and anaerobic purification might indicate that it does not have a function in dithiol-disulfide exchange reactions. The two other proteins were able to catalyze oxidation or reduction reactions, PDI-L1a being more efficient in most cases, except that it was unable to activate the non-physiological substrate NADP-MDH, in contrast to PDI-M. To further evaluate the contribution of the catalytic domains of PDI-M, the dicysteinic motifs have been independently mutated in each a domain. The results indicated that the two a domains seem interconnected and that the a° module preferentially catalyzed oxidation reactions whereas the a module catalyzed reduction reactions, in line with the respective redox potentials of -170 mV and -190 mV at pH 7.0. Overall, these in vitro results illustrate that the number and position of a and b domains influence the redox properties and substrate recognition (both electron donors and acceptors) of PDI which contributes to understand why this protein family expanded along evolution.
Collapse
Affiliation(s)
- Benjamin Selles
- UMR 1136 Interactions Arbres/Microorganismes, Université de Lorraine/ INRA, Faculté des Sciences et Technologies, Vandoeuvre-lès-Nancy, France
| | - Flavien Zannini
- UMR 1136 Interactions Arbres/Microorganismes, Université de Lorraine/ INRA, Faculté des Sciences et Technologies, Vandoeuvre-lès-Nancy, France
| | - Jérémy Couturier
- UMR 1136 Interactions Arbres/Microorganismes, Université de Lorraine/ INRA, Faculté des Sciences et Technologies, Vandoeuvre-lès-Nancy, France
| | - Jean-Pierre Jacquot
- UMR 1136 Interactions Arbres/Microorganismes, Université de Lorraine/ INRA, Faculté des Sciences et Technologies, Vandoeuvre-lès-Nancy, France
| | - Nicolas Rouhier
- UMR 1136 Interactions Arbres/Microorganismes, Université de Lorraine/ INRA, Faculté des Sciences et Technologies, Vandoeuvre-lès-Nancy, France
- * E-mail:
| |
Collapse
|