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Debracque C, Slocombe KE, Clay Z, Grandjean D, Gruber T. Humans recognize affective cues in primate vocalizations: acoustic and phylogenetic perspectives. Sci Rep 2023; 13:10900. [PMID: 37407601 DOI: 10.1038/s41598-023-37558-3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 06/23/2023] [Indexed: 07/07/2023] Open
Abstract
Humans are adept at extracting affective information from vocalizations of humans and other animals. However, the extent to which human recognition of vocal affective cues of other species is due to cross-taxa similarities in acoustic parameters or the phylogenetic closeness between species is currently unclear. To address this, we first analyzed acoustic variation in 96 affective vocalizations, taken from agonistic and affiliative contexts, of humans and three other primates-rhesus macaques (Macaca mulatta), chimpanzees and bonobos (Pan troglodytes and Pan paniscus). Acoustic analyses revealed that agonistic chimpanzee and bonobo vocalizations were similarly distant from agonistic human voices, but chimpanzee affiliative vocalizations were significantly closer to human affiliative vocalizations, than those of bonobos, indicating a potential derived vocal evolution in the bonobo lineage. Second, we asked 68 human participants to categorize and also discriminate vocalizations based on their presumed affective content. Results showed that participants reliably categorized human and chimpanzee vocalizations according to affective content, but not bonobo threat vocalizations nor any macaque vocalizations. Participants discriminated all species calls above chance level except for threat calls by bonobos and macaques. Our results highlight the importance of both phylogenetic and acoustic parameter level explanations in cross-species affective perception, drawing a more complex picture to the origin of vocal emotions.
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Affiliation(s)
- C Debracque
- Department of Psychology and Educational Sciences and Swiss Center for Affective Sciences (CISA), Campus Biotech, University of Geneva, Chemin des Mines 9, 1202, Geneva, Switzerland.
| | - K E Slocombe
- Department of Psychology, University of York, York, UK
| | - Z Clay
- Department of Psychology, Durham University, Durham, UK
| | - D Grandjean
- Department of Psychology and Educational Sciences and Swiss Center for Affective Sciences (CISA), Campus Biotech, University of Geneva, Chemin des Mines 9, 1202, Geneva, Switzerland
| | - T Gruber
- Department of Psychology and Educational Sciences and Swiss Center for Affective Sciences (CISA), Campus Biotech, University of Geneva, Chemin des Mines 9, 1202, Geneva, Switzerland
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Legendre G, Moyne M, Dominguez-Borras J, Sterpenich V, Grandjean D, Schwartz S, Arnal L. Sleep and Shouts: the intrinsically aversive nature of rough sounds is preserved during NREM sleep. Sleep Med 2022. [DOI: 10.1016/j.sleep.2022.05.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Ceravolo L, Schaerlaeken S, Frühholz S, Glowinski D, Grandjean D. Frontoparietal, Cerebellum Network Codes for Accurate Intention Prediction in Altered Perceptual Conditions. Cereb Cortex Commun 2021; 2:tgab031. [PMID: 34296176 PMCID: PMC8190560 DOI: 10.1093/texcom/tgab031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 04/16/2021] [Accepted: 04/16/2021] [Indexed: 11/13/2022] Open
Abstract
Integrating and predicting the intentions and actions of others are critical components of social interactions, but the behavioral and neural bases of such mechanisms under altered perceptual conditions are poorly understood. In the present study, we recruited expert violinists and age-matched controls with no musical training and asked them to evaluate simplified dynamic stimuli of violinists playing in a piano or forte communicative intent while undergoing functional magnetic resonance imaging. We show that expertise is needed to successfully understand and evaluate communicative intentions in spatially and temporally altered visual representations of musical performance. Frontoparietal regions-such as the dorsolateral prefrontal cortex and the inferior parietal lobule and sulcus-and various subregions of the cerebellum-such as cerebellar lobules I-IV, V, VI, VIIb, VIIIa, X-a re recruited in the process. Functional connectivity between these brain areas reveals widespread organization, particularly in the dorsolateral prefrontal cortex, inferior frontal gyrus, inferior parietal sulcus, and in the cerebellum. This network may be essential to successfully assess communicative intent in ambiguous or complex visual scenes.
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Affiliation(s)
- L Ceravolo
- Neuroscience of Emotion and Affective Dynamics Lab, Department of Psychology and Educational Sciences and Swiss Center for Affective Sciences, University of Geneva, Geneva, Switzerland
| | - S Schaerlaeken
- Neuroscience of Emotion and Affective Dynamics Lab, Department of Psychology and Educational Sciences and Swiss Center for Affective Sciences, University of Geneva, Geneva, Switzerland
| | - S Frühholz
- Department of Psychology, University of Zurich, Zurich, Switzerland.,Department of Psychology, University of Oslo, Oslo, Norway
| | - D Glowinski
- Neuroscience of Emotion and Affective Dynamics Lab, Department of Psychology and Educational Sciences and Swiss Center for Affective Sciences, University of Geneva, Geneva, Switzerland
| | - D Grandjean
- Neuroscience of Emotion and Affective Dynamics Lab, Department of Psychology and Educational Sciences and Swiss Center for Affective Sciences, University of Geneva, Geneva, Switzerland
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Bahariqushchi R, Cosentino S, Scuderi M, Dumons E, Tran-Huu-Hue LP, Strano V, Grandjean D, Lievens P, Poulin-Vittrant G, Spinella C, Terrasi A, Franzò G, Mirabella S. Free carrier enhanced depletion in ZnO nanorods decorated with bimetallic AuPt nanoclusters. Nanoscale 2020; 12:19213-19222. [PMID: 32926047 DOI: 10.1039/d0nr04134c] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The decoration of semiconductor nanostructures with small metallic clusters usually leads to an improvement of their properties in sensing or catalysis. Bimetallic cluster decoration typically is claimed to be even more effective. Here, we report a detailed investigation of the effects of Au, Pt or AuPt nanocluster decoration of ZnO nanorods on charge transport, photoluminescence and UV sensitivity. ZnO nanorods were synthesized by chemical bath deposition while decoration with small nanoclusters (2-3 nm in size) was achieved by a laser-ablation based cluster beam deposition technology. The structural properties were investigated by scanning electron microscopy, high resolution transmission electron microscopy, X-ray photoelectron spectroscopy and Rutherford backscattering spectrometry, and the optoelectronic properties by current-voltage and photoluminescence measurements. The extent of band bending at the cluster-ZnO interface was quantitatively modeled through numerical simulations. The decoration of ZnO nanorods with monometallic Au or Pt nanoclusters causes a significant depletion of free electrons below the surface, leading to a reduction of UV photoluminescence, an increase of ZnO nanorod dark resistance (up to 200 times) and, as a consequence, an improved sensitivity (up to 6 times) to UV light. These effects are strongly enhanced (up to 450 and 10 times, respectively) when ZnO nanorods are decorated with bimetallic AuPt nanoclusters that substantially augment the depletion of free carriers likely due to a more efficient absorption of the gas molecules on the surface of the bimetallic AuPt nanoclusters than on that of their monometallic counterparts. The depletion of free carriers in cluster decorated ZnO nanorods is quantitatively investigated and modelled, allowing the application of these composite materials in UV sensing and light induced catalysis.
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Affiliation(s)
| | - S Cosentino
- IMM-CNR, via S. Sofia 64, 95123 Catania, Italy
| | - M Scuderi
- IMM-CNR, VIII strada 5, 95121 Catania, Italy
| | - E Dumons
- GREMAN UMR 7347 CNRS, INSA Centre Val de Loire, Université de Tours, 3 rue de la Chocolaterie, CS 23410, 41034 BLOIS cedex, France
| | - L P Tran-Huu-Hue
- GREMAN UMR 7347 CNRS, INSA Centre Val de Loire, Université de Tours, 3 rue de la Chocolaterie, CS 23410, 41034 BLOIS cedex, France
| | - V Strano
- BRIT (Bio-nanotechResearchInnovationTower), Università degli Studi di Catania, via S. Sofia 89, 95123 Catania, Italy
| | - D Grandjean
- Quantum Solid State Physics, Department of Physics and Astronomy, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
| | - P Lievens
- Quantum Solid State Physics, Department of Physics and Astronomy, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
| | - G Poulin-Vittrant
- GREMAN UMR 7347 CNRS, INSA Centre Val de Loire, Université de Tours, 3 rue de la Chocolaterie, CS 23410, 41034 BLOIS cedex, France
| | - C Spinella
- IMM-CNR, VIII strada 5, 95121 Catania, Italy
| | - A Terrasi
- IMM-CNR, via S. Sofia 64, 95123 Catania, Italy and Dipartimento di Fisica e Astronomia, Università di Catania, via S. Sofia 64, 95123 Catania, Italy.
| | - G Franzò
- IMM-CNR, via S. Sofia 64, 95123 Catania, Italy
| | - S Mirabella
- IMM-CNR, via S. Sofia 64, 95123 Catania, Italy and Dipartimento di Fisica e Astronomia, Università di Catania, via S. Sofia 64, 95123 Catania, Italy.
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Filippa M, Cornara S, Monaci MG, Grandjean D, Nuti G, Nadel J. L’imitation sonore durant la période préverbale : enjeux théoriques et dispositifs. Enfance 2020. [DOI: 10.3917/enf2.201.0131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Trost W, Labbé C, Grandjean D. Corrigendum to “Rhythmic entrainment as a musical affect induction mechanism”[Neuropsychologia 96 (2017) 96–110]. Neuropsychologia 2020; 136:107235. [DOI: 10.1016/j.neuropsychologia.2019.107235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Trost W, Leh F, Houvenaghel JF, Choppin S, Drapier S, Sauleau P, Haegelen C, Robert G, Grandjean D, Vérin M. Subthalamic deep brain stimulation influences complex emotional musical experience in Parkinson's disease. Neuropsychologia 2018; 117:278-286. [PMID: 29936120 DOI: 10.1016/j.neuropsychologia.2018.06.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 06/11/2018] [Accepted: 06/20/2018] [Indexed: 11/27/2022]
Abstract
Subthalamic deep brain stimulation (STN DBS) is an effective treatment for reducing the motor symptoms of patients with Parkinson's disease (PD), but several side effects have been reported, concerning the processing of emotions. Music has been shown to evoke powerful emotional experiences - not only basic emotions, but also complex, so-called aesthetic experiences. The goal of the present study was therefore to investigate how STN DBS influences the experience of both basic and more complex musical emotions in patients with PD. In a three-group between-participants design, we compared healthy controls (HC), patients receiving STN DBS (PD-DBS), and patients who were candidates for STN DBS and receiving medication only (PD-MO) on their assessments of subjectively experienced musical emotions. Results showed that in general, the experience of musical emotions differed only marginally between the PD-MO, PD-DBS, and HC groups. Nonetheless, we were able to discern subtle but distinct effects of PD and STN DBS in the emotional responses. Happy music, for instance, seemed to induce a heightened experience of negative emotions (tension) in PD-MO patients. STN DBS appeared to normalize this particular effect, but increased nostalgic feelings - a rather complex affective experience - in response to the same emotional stimuli. This should not be taken as indicating a bias for nostalgia in the PD-DBS subgroup, as these patients found music inducing melancholy to be less nostalgic and more joyful than HC did. In conclusion, our study showed that music elicits slightly altered emotional experiences in patients with and without STN DBS. In particular, STN DBS seems to induce less distinct emotional responses, blurring the boundaries between complex musical emotions.
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Affiliation(s)
- W Trost
- Neurosciences of Emotions and Affective Dynamics Laboratory, Department of Psychology, University of Geneva, Switzerland; Swiss Centre for Affective Sciences, University of Geneva, Switzerland.
| | - F Leh
- Neurology Department, Rennes University Hospital, Rennes, France.
| | - J-F Houvenaghel
- Neurology Department, Rennes University Hospital, Rennes, France
| | - S Choppin
- University Centre of Excellence in Psychiatry, Albert Chenevier Hospital, Créteil, France
| | - S Drapier
- Neurology Department, Rennes University Hospital, Rennes, France
| | - P Sauleau
- Neurology Department, Rennes University Hospital, Rennes, France
| | - C Haegelen
- Neurology Department, Rennes University Hospital, Rennes, France
| | - G Robert
- Neurology Department, Rennes University Hospital, Rennes, France
| | - D Grandjean
- Neurosciences of Emotions and Affective Dynamics Laboratory, Department of Psychology, University of Geneva, Switzerland; Swiss Centre for Affective Sciences, University of Geneva, Switzerland
| | - M Vérin
- Neurology Department, Rennes University Hospital, Rennes, France
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Abstract
SummaryWe studied the time necessary to obtain reliable kinetic data from healthy dogs trotting on a treadmill. Ten adult male Malinois Belgian Shepherd dogs were made to trot on an instrumented treadmill to record the ground reaction force for the entire body and to determine the vertical force variables (peak [PFz], impulse [IFz], stride time [Str], peak time [Tz] and contact time [Ct]). Data were collected from each dog, during three sequences per day, on three consecutive days. In order to determine the contribution of the ‘sequence’, ‘day of measurement’, and ‘dog’ factors and the percentage of variance attributable to dogs, data were analyzed with a linear mixed model. The curve shapes were similar to those obtained with a floor-mounted force platform. Intra-dog coefficients of variation were between 1.57 and 3.46%. Inter-dog coefficients of variation were between 4.18 and 7.82%. A sequence effect was not noted. Each day had a significant effect on all of the data. All variables differed significantly from the first day compared to the other days. However there was not any difference between days 2 and 3. The percentage of the total variance attributable to dogs ranged from 37 to 88%. The coefficients of variation were lower than those obtained with common protocols. The treadmill locomotion remained consistent during a single session. Even if interday variation needs to be accounted for, reliable data can still be obtained after a single training session. The majority of the variation was attributable to the dog. An instrumented treadmill may be used for kinetic analysis.
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Grellet A, Heilmann RM, Polack B, Feugier A, Boucraut-Baralon C, Grandjean D, Grützner N, Suchodolski JS, Steiner JM, Chastant-Maillard S. Influence of Breed Size, Age, Fecal Quality, and Enteropathogen Shedding on Fecal Calprotectin and Immunoglobulin A Concentrations in Puppies During the Weaning Period. J Vet Intern Med 2016; 30:1056-64. [PMID: 27279352 PMCID: PMC5089601 DOI: 10.1111/jvim.14255] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 04/25/2016] [Accepted: 05/09/2016] [Indexed: 12/12/2022] Open
Abstract
Background Fecal calprotectin and immunoglobulin A (IgA) are markers of intestinal inflammation and immunity in adult dogs. Hypothesis Fecal calprotectin and IgA concentrations in puppies are not influenced by fecal moisture in puppies but by enteropathogen shedding. Animals Three hundred and twenty‐four puppies. Methods Fecal consistency was assessed by gross examination. Fecal moisture was evaluated before and after lyophilization. Canine parvovirus and coronavirus were detected in feces by qPCR and qRT‐PCR respectively. Giardia intestinalis antigen was quantified by ELISA. The standard McMaster flotation technique was used to detect eggs and oocysts in feces. Fecal calprotectin and IgA concentrations were quantified by in‐house radioimmunoassays. Results For each marker (IgA and calprotectin), a strong positive correlation was observed between concentration in fresh feces and concentration in fecal dry matter. 75.6% of the puppies were found to be infected by at ≥1 of the enteropathogens evaluated. Fecal calprotectin concentration was significantly influenced by age (P = .001), with higher concentrations in younger puppies, but not by viral (P = .863) or parasitic infection (P = .791). Fecal IgA concentration was significantly influenced by enteropathogen shedding (P = .01), with a lower fecal IgA concentration in puppies shedding at ≥1 enteropathogen compared to puppies without any enteropathogen shedding, but not by age. Conclusions Fecal calprotectin and IgA are of no diagnostic value to detect presence of enteropathogens in clinically healthy puppies or puppies with abnormal feces, but could help to better understand the maturation of digestive tract.
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Affiliation(s)
| | - R M Heilmann
- Small Animal Clinic, College of Veterinary Medicine, University of Leipzig, Leipzig, Germany
| | - B Polack
- Ecole Nationale Vétérinaire d'Alfort, Université Paris-Est, Maisons-Alfort Cedex, France
| | | | | | - D Grandjean
- Ecole Nationale Vétérinaire d'Alfort, Université Paris-Est, Maisons-Alfort Cedex, France
| | - N Grützner
- Clinic for Swine, Department of Clinical Veterinary Medicine, Vetsuisse Faculty Berne, Berne, Switzerland
| | - J S Suchodolski
- Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX
| | - J M Steiner
- Gastrointestinal Laboratory, Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX
| | - S Chastant-Maillard
- NeoCare, IHAP, IHAP, Université de Toulouse, INRA, ENVT, Toulouse Cedex 03, France
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Obradovic M, Di Vece M, Grandjean D, Houben K, Lievens P. Charging gold nanoparticles in ZnO by electric fields. J Phys Condens Matter 2016; 28:035303. [PMID: 26732742 DOI: 10.1088/0953-8984/28/3/035303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Controlling the plasmon resonance frequency of metal nanostructures holds promise for both fundamental and applied research in optics. The plasmon resonance frequency depends on the number of free electrons in the metal. By adding or removing electrons to a metal nano-object, the plasmon resonance frequency shifts. In this study we indirectly change the number of free electrons in gold nanoparticles by applying an electrical potential difference over a heterostructure consisting of a ZnO layer with embedded gold nanoparticles. The potential difference induces shifts of defect energy levels in the ZnO by the electric field. This results in an exchange of electrons between particles and matrix which in turn modifies the gold nanoparticle plasmon properties. The positive charge shifts the ZnO optical absorption peak from 377 nm to 386 nm and shifts the nanoparticle plasmon from 549 nm to 542 nm. This electro-optical effect is a promising way to obtain fast optical switching in a solid state composition.
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Affiliation(s)
- M Obradovic
- Laboratory of Solid State Physics and Magnetism, KU Leuven, Celestijnenlaan 200d - box 2414, B-3001, Leuven, Belgium
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Obradovic M, Di Vece M, Asselberghs I, Grandjean D, Clays K, Lievens P. Photoluminescence as a Probe of the Electrical Charge Dependence of Gold Nanoparticles. J Nanosci Nanotechnol 2015; 15:9766-9771. [PMID: 26682410 DOI: 10.1166/jnn.2015.10794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Electro-optical switching can be achieved by changing the optical absorption of metal nanoparticles by adding or removing electrical charge, corresponding to increased, respectively, decreased electron density. In this work a different approach is taken by changing the photoluminescence properties as a function of electrical charge on gold nanoparticles. Whereas larger gold nanoparticles (diameter d = 5 and 10 nm), exhibiting a plasmon resonance peak in the absorption spectrum, were used to measure changes of the optical absorption spectrum upon electrical charging, for smaller gold nanoparticles (d = 2 and 5 nm) electrical charging was observed via changes of the photoluminescence. Increase and decrease in photoluminescence was observed at positive and negative applied potentials, respectively. The relation between changes of optical absorption and photoluminescence for the 5 nm particles by electrical charging provides information on the influence of the charge state on the electronic properties and therefore the optical transition probability. The reported observation that not only the optical absorption, but also the photoluminescence is affected by alteration of the electrical charge onto gold nanoparticles may open a new way towards electro-optical switching and bio-sensing.
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De la Cruz N, Esquius L, Grandjean D, Magnet A, Tungler A, de Alencastro LF, Pulgarín C. Degradation of emergent contaminants by UV, UV/H2O2 and neutral photo-Fenton at pilot scale in a domestic wastewater treatment plant. Water Res 2013; 47:5836-45. [PMID: 23910229 DOI: 10.1016/j.watres.2013.07.005] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Revised: 07/04/2013] [Accepted: 07/05/2013] [Indexed: 05/22/2023]
Abstract
This study focuses on the removal of 22 selected micropollutants in an effluent from a municipal wastewater treatment plant (MWTP) at pilot scale. A reactor of 37 L with five low pressure mercury lamps emitting at 254 nm (UV254) was used. The 22 micropollutants include 15 pharmaceuticals, 2 X-Ray contrast medias, 1 corrosion inhibitor and 4 biocides/pesticides. Five of these 22 compounds were used as indicative substances as proposed by the Swiss Federal Office for the Environment (FOEN) (carbamazepine, diclofenac, sulfamethoxazole, benzotriazole and mecoprop). Treatments included UV254 light alone, UV254 + H2O2 and UV254 + H2O2+Fe(3+). Wastewater coming from the MWTP already contained iron with an average total iron of 1.6 mg L(-1). Original pH was not modified and remained between 6 and 7. The parameters changed during the experiments to find the optimal conditions were: wastewater flow rate (2-14 m(3) h(-1)), H2O2 concentration (20-50 mg L(-1)) and Fe (III) concentration (0-4 mg L(-1)). Chemicals removal rates were greater than 80% for the majority of the flow rates tested. Operating costs for the different conditions evaluated were also estimated and compared.
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Affiliation(s)
- N De la Cruz
- Institut des Sciences et Ingénierie Chimiques, GGEC, EPFL, Bât. CH, 1015 Lausanne, Switzerland; Department of Chemical Engineering, Faculty of Chemistry, University of Barcelona, C/Marti I Franques 1, 08028 Barcelona, Spain
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De la Cruz N, Giménez J, Esplugas S, Grandjean D, de Alencastro LF, Pulgarín C. Degradation of 32 emergent contaminants by UV and neutral photo-fenton in domestic wastewater effluent previously treated by activated sludge. Water Res 2012; 46:1947-57. [PMID: 22305640 DOI: 10.1016/j.watres.2012.01.014] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Revised: 01/12/2012] [Accepted: 01/16/2012] [Indexed: 05/22/2023]
Abstract
This study focuses on the removal of 32 selected micropollutants (pharmaceuticals, corrosion inhibitors and biocides/pesticides) found in an effluent coming from a municipal wastewater treatment plant (MWTP) based on activated sludge. Dissolved organic matter was present, with an initial total organic carbon of 15.9 mg L(-1), and a real global quantity of micropollutants of 29.5 μg L(-1). The treatments tested on the micropollutants removal were: UV-light emitting at 254 nm (UV(254)) alone, dark Fenton (Fe(2+,3+)/H(2)O(2)) and photo-Fenton (Fe(2+,3+)/H(2)O(2)/light). Different irradiation sources were used for the photo-Fenton experiences: UV(254) and simulated sunlight. Iron and H(2)O(2) concentrations were also changed in photo-Fenton experiences in order to evaluate its influence on the degradation. All the experiments were developed at natural pH, near neutral. Photo-Fenton treatments employing UV(254), 50 mg L(-1) of H(2)O(2), with and without adding iron (5 mg L(-1) of Fe(2+) added or 1.48 mg L(-1) of total iron already present) gave the best results. Global percentages of micropollutants removal achieved were 98 and a 97% respectively, after 30 min of treatments. As the H(2)O(2) concentration increased (10, 25 and 50 mg L(-1)), best degradations were observed. UV(254), Fenton, and photo-Fenton under simulated sunlight gave less promising results with lower percentages of removal. The highlight of this paper is to point out the possibility of the micropollutants degradation in spite the presence of DOM in much higher concentrations.
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Affiliation(s)
- N De la Cruz
- Institut des Sciences et Ingénierie Chimiques, GGEC, EPFL, Bât. CH, 1015 Lausanne, Switzerland
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Grandjean D. Emergence de l’émotion : mécanismes sous-corticaux et corticaux impliqués dans les processus émotionnels. Rev Neurol (Paris) 2012. [DOI: 10.1016/j.neurol.2012.01.431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Clero D, Grandjean D. Influence of high-fat/high-antioxidant nutritional supplementation before and during endurance exercise on physiological and biochemical responses in physically trained search and rescue dogs. J Vet Behav 2012. [DOI: 10.1016/j.jveb.2011.12.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Nasielski-Hinkens R, Kaisin M, Grandjean D, Loos M, Nasielski J. Nucleophilic substitutions on 2-Chloro-3-Nitroquinoxaline. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bscb.19880971116] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Abstract
BACKGROUND Identification of emotional facial expression and emotional prosody (i.e. speech melody) is often impaired in schizophrenia. For facial emotion identification, a recent study suggested that the relative deficit in schizophrenia is enhanced when the presented emotion is easier to recognize. It is unclear whether this effect is specific to face processing or part of a more general emotion recognition deficit. METHOD We used clarity-graded emotional prosodic stimuli without semantic content, and tested 25 in-patients with paranoid schizophrenia, 25 healthy control participants and 25 depressive in-patients on emotional prosody identification. Facial expression identification was used as a control task. RESULTS Patients with paranoid schizophrenia performed worse than both control groups in identifying emotional prosody, with no specific deficit in any individual emotion category. This deficit was present in high-clarity but not in low-clarity stimuli. Performance in facial control tasks was also impaired, with identification of emotional facial expression being a better predictor of emotional prosody identification than illness-related factors. Of those, negative symptoms emerged as the best predictor for emotional prosody identification. CONCLUSIONS This study suggests a general deficit in identifying high-clarity emotional cues. This finding is in line with the hypothesis that schizophrenia is characterized by high noise in internal representations and by increased fluctuations in cerebral networks.
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Affiliation(s)
- D R Bach
- University Hospital of Psychiatry, University of Bern, Bern 60, Switzerland.
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Chrea C, Grandjean D, Delplanque S, Cayeux I, Le Calve B, Aymard L, Velazco MI, Sander D, Scherer KR. Mapping the Semantic Space for the Subjective Experience of Emotional Responses to Odors. Chem Senses 2008; 34:49-62. [DOI: 10.1093/chemse/bjn052] [Citation(s) in RCA: 163] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Di Vece M, Grandjean D, Van Bael MJ, Romero CP, Wang X, Decoster S, Vantomme A, Lievens P. Hydrogen-induced Ostwald ripening at room temperature in a Pd nanocluster film. Phys Rev Lett 2008; 100:236105. [PMID: 18643522 DOI: 10.1103/physrevlett.100.236105] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2007] [Indexed: 05/26/2023]
Abstract
The structural and morphological changes occurring in an ensemble of vapor deposited palladium nanoclusters have been studied after several hydrogenation cycles with x-ray diffraction, extended x-ray-absorption fine structure spectroscopy, Rutherford backscattering spectrometry, and STM. Initial hydrogenation increased the cluster size, a result that is attributed to hydrogen-induced Ostwald ripening. This phenomenon originates from the higher mobility of palladium atoms resulting from the low sublimation energy of the palladium hydride as compared to that of the palladium metal. The universality of this phenomenon makes it important for the application of future nanostructured hydrogen storage materials.
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Affiliation(s)
- M Di Vece
- Laboratorium voor Vaste-Stoffysica en Magnetisme & INPAC-Institute for Nanoscale Physics and Chemistry, Katholieke Universiteit Leuven, Leuven, Belgium
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Kupper T, Plagellat C, Brändli RC, de Alencastro LF, Grandjean D, Tarradellas J. Fate and removal of polycyclic musks, UV filters and biocides during wastewater treatment. Water Res 2006; 40:2603-12. [PMID: 16797670 DOI: 10.1016/j.watres.2006.04.012] [Citation(s) in RCA: 157] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2005] [Revised: 04/06/2006] [Accepted: 04/12/2006] [Indexed: 05/10/2023]
Abstract
The fate of polycyclic musks (PCMs) (HHCB, AHTN, ADBI, AHDI, ATII, DPMI), UV filters (3-(4-methylbenzylidene) camphor, 4-MBC; octyl-methoxycinnamate, OMC; octocrylene, OC; octyl-triazone, OT) and biocides (permethrin, carbendazim) during wastewater treatment was studied on a full-scale plant. Average influent concentrations of OMC, HHCB, OC, AHTN, 4-MBC and OT were at 20070, 4420, 1680, 1430, 960 and 720 ng L(-1), respectively. The other PCMs, permethrin and carbendazim ranged between < limits of quantification and 670 ng L(-1). Concentrations in the water line decreased significantly for most compounds. Removal rates for PCMs ranged from 72% to 86%, for UV filters from 92% to >99% and were at 92% and 37% for permethrin and carbendazim, respectively. Removal during wastewater treatment was mainly driven by sorption onto solids and biodegradation. For anaerobic sludge digestion, elimination of PCMs, OMC and the biocides was observed.
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Affiliation(s)
- T Kupper
- Ecole Polytechnique Fédérale de Lausanne (EPFL), Laboratory of Environmental Chemistry and Ecotoxicology (CECOTOX), 1015 Lausanne, Switzerland.
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Abstract
AIMS The aim of this study was to elucidate if the need for iron for Escherichia coli to remain cultivable in a poorly nutritive medium such as the drinking water uses the iron transport system via the siderophores. METHODS AND RESULTS Environmental strains of E. coli (isolated from a drinking water network), referenced strains of E. coli and mutants deficient in TonB, an essential protein for iron(III) acquisition, were incubated for 3 weeks at 25 degrees C, in sterile drinking water with and without lepidocrocite (gamma-FeOOH), an insoluble iron corrosion product. Only cells with a functional iron transport system were able to survive throughout the weeks. CONCLUSIONS The iron transport system via protein TonB plays an essential role on the survival of E. coli in a weakly nutritive medium like drinking water. SIGNIFICANCE AND IMPACTS OF THE STUDY Iron is a key parameter involved in coliform persistence in drinking water distribution systems.
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Affiliation(s)
- D Grandjean
- Laboratoire de Chimie Physique et Microbiologie Pour l'Environnement (LCPME), rue de Vandoeuvre, Villers-lès-Nancy, France
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Fanchon L, Valette JP, Sanaa M, Grandjean D. The measurement of ground reaction force in dogs trotting on a treadmill: an investigation of habituation. Vet Comp Orthop Traumatol 2006; 19:81-6. [PMID: 16810349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
We studied the time necessary to obtain reliable kinetic data from healthy dogs trotting on a treadmill. Ten adult male Malinois Belgian Shepherd dogs were made to trot on an instrumented treadmill to record the ground reaction force for the entire body and to determine the vertical force variables (peak [PFz], impulse [IFz], stride time [Str], peak time [Tz] and contact time [Ct]). Data were collected from each dog, during three sequences per day, on three consecutive days. In order to determine the contribution of the sequence, day of measurement, and dog factors and the percentage of variance attributable to dogs, data were analyzed with a linear mixed model. The curve shapes were similar to those obtained with a floor-mounted force platform. Intra-dog coefficients of variation were between 1.57 and 3.46%. Inter-dog coefficients of variation were between 4.18 and 7.82%. A sequence effect was not noted. Each day had a significant effect on all of the data. All variables differed significantly from the first day compared to the other days. However there was not any difference between days 2 and 3. The percentage of the total variance attributable to dogs ranged from 37 to 88%. The coefficients of variation were lower than those obtained with common protocols. The treadmill locomotion remained consistent during a single session. Even if interday variation needs to be accounted for, reliable data can still be obtained after a single training session. The majority of the variation was attributable to the dog. An instrumented treadmill may be used for kinetic analysis.
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Affiliation(s)
- L Fanchon
- Unité de Médecine de l'Elevage et du Sport, ENVA, France.
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Mustafa A, Achilleos M, Ruiz-Iban J, Davies J, Benfield R, Jones R, Grandjean D, Holder S. Synthesis and structural characterisation of various organosilane–organogermane and organosilane–organostannane statistical copolymers by the Wurtz reductive coupling polymerisation: 119Sn NMR and EXAFS characterisation of the stannane copolymers. REACT FUNCT POLYM 2006. [DOI: 10.1016/j.reactfunctpolym.2005.07.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Tauxe-Wuersch A, De Alencastro LF, Grandjean D, Tarradellas J. Occurrence of several acidic drugs in sewage treatment plants in Switzerland and risk assessment. Water Res 2005; 39:1761-72. [PMID: 15899274 DOI: 10.1016/j.watres.2005.03.003] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2004] [Revised: 02/09/2005] [Indexed: 05/02/2023]
Abstract
The occurrence and fate of five acidic drugs (Mefenamic acid, Ibuprofen, Ketoprofen, Diclofenac and Clofibric acid) were analysed in three sewage treatment plants (STP) over 4-7 consecutive days. The results point out that the five substances were persistent in wastewater effluents after municipal wastewater treatment. At the most, half of Mefenamic acid was eliminated. Ibuprofen was well removed (80%) by one sewage treatment plant. The removal of Ibuprofen is dependent on the residence time of wastewater in the STPs. A long raining period induce an important decrease of removal of Ibuprofen and Ketoprofen. Removal rates showed a great variability according to sewage treatment plants and types of treatments (e.g. biological, physico-chemical). The concentrations of Ibuprofen, Mefenamic acid and Diclofenac were relatively high in the effluents (150-2000 ng/l), showing a potential contamination of surface water. An environmental risk assessment is presented. Mefenamic acid seems to present a risk for the aquatic environment, with a ratio PEC/PNEC higher than one.
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Affiliation(s)
- A Tauxe-Wuersch
- Ecole Polytechnique Fédérale de Lausanne (EPFL), Laboratory of Environmental Chemistry and Ecotoxicology, CH-1015 Lausanne, Switzerland.
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Grandjean D, Fass S, Tozza D, Cavard J, Lahoussine V, Saby S, Guilloteau H, Block JC. Coliform culturability in over- versus undersaturated drinking waters. Water Res 2005; 39:1878-86. [PMID: 15899286 DOI: 10.1016/j.watres.2005.03.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2004] [Revised: 02/25/2005] [Indexed: 05/02/2023]
Abstract
The culturability of Escherichia coli in undersaturated drinking water with respect to CaCO3 (corrosive water) or in oversaturated water (non-corrosive water) was tested in different reactors: glass flasks (batch, "non-reactive" wall); glass reactors (chemostat, "non-reactive" wall) versus a corroded cast iron Propella reactor (chemostat, "reactive" wall) and a 15-year-old distribution system pilot (chemostat, "reactive" wall with 1% corroded cast iron and 99% cement-lined cast iron). The E. coli in E. coli-spiked drinking water was not able to maintain its culturability and colonize the experimental systems. It appears from our results that the optimal pH for maintaining E. coli culturability was around 8.2 or higher. However, in reactors with a reactive wall (corroded cast iron), the decline in E. coli culturability was slower when the pH was adjusted to 7.9 or 7.7 (i.e. a reactor fed with corrosive water; pH<pHs) than in non-corrosive water (pH 8.64 or 8.24; pH>pHs). We tentatively deduce that corrosion products coming from chemical reactions driven by corrosive waters on the pipe wall improve E. coli culturability.
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Affiliation(s)
- D Grandjean
- LCPME, UMR 7564 CNRS-UHP, Faculté de Pharmacie, Pôle de l'Eau, 15 avenue du Charmois, 54500 Vandoeuvre-lès-Nancy, France
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Grandjean D, Jorand F, Yañez C, Appenzeller BMR, Block JC. Influence of lepidocrocite (gamma-FeOOH) on Escherichia coli cultivability in drinking water. Environ Technol 2005; 26:211-217. [PMID: 15791802 DOI: 10.1080/09593332608618577] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A washed suspension of the bacteria Escherichia coli, pre-grown on a complex culture medium, was stored in sterilized drinking water for 21 days at 25 degrees C in glass flasks in order to assess the effect of iron corrosion products on the persistenceof the bacteria in drinking water. Four conditions were tested: aerobic with 50 mM lepidocrocite (gamma-FeOOH, an insoluble iron corrosion product), anaerobic with 50 mM lepidocrocite, aerobic without lepidocrocite and anaerobic without lepidocrocite. The survival of E. coli was monitored by their cultivability and their membrane integrity (propidium iodide staining). When the samples were not supplemented with the iron oxide, the cultivability and cell integrity of the bacteria were dramatically altered: from the 10(7) initially added, only 10 CFU ml(-1) remained after 21 days; 90% of the cells exhibited membrane alteration after 2 weeks of storage. In contrast, bacteria with lepidocrocite preserved their cultivability and integrity over the 21 days of storage. In the presence of di-oxygen and without iron oxide, the alteration of cell cultivability was more pronounced than that in anaerobic conditions, suggesting that oxidative stress was part of the phenomenon. When the cells were pre-grown in a growth medium supplemented by a large excess of an easily available form of iron (ferric-citrate), the cells stored a higher amount of iron and persisted one week longer in the iron-free drinking water than cells pre-grown in the standard growth medium. Therefore, in an oligotrophic environment like drinking water, E. coli cells can find the ability to survive a long time through the presence of iron corrosion products. The necessity of controlling the corrosiveness of drinking water for sanitary reasons is therefore emphasized by this study.
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Affiliation(s)
- D Grandjean
- Laboratoire de Chimie Physique et Microbiologie pour l'Environnement (LCPME), UMR 7564 CNRS-UHP, Faculté de Pharmacie - Extension Pô le de l'Eau, 15, avenue du Charmois, 54500 Vandoeuvre-lè s-Nancy, France
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Plagellat C, Kupper T, de Alencastro LF, Grandjean D, Tarradellas J. Biocides in sewage sludge: quantitative determination in some Swiss wastewater treatment plants. Bull Environ Contam Toxicol 2004; 73:794-801. [PMID: 15669721 DOI: 10.1007/s00128-004-0497-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Affiliation(s)
- C Plagellat
- Laboratory of Environmental Chemistry and Ecotoxicology (CECOTOX), Faculty of Architecture, Civil and Environmental Engineering, Swiss Federal Institute of Technology (EPFL), CH-1015 Lausanne, Switzerland
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Bérard A, Dorigo U, Mercier I, Becker-van Slooten K, Grandjean D, Leboulanger C. Comparison of the ecotoxicological impact of the triazines Irgarol 1051 and atrazine on microalgal cultures and natural microalgal communities in Lake Geneva. Chemosphere 2003; 53:935-944. [PMID: 14505716 DOI: 10.1016/s0045-6535(03)00674-x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The antifouling herbicide Irgarol 1051 has been detected in recent years in numerous estuaries, marinas, harbors and coastal areas, and in some harbors on Lake Geneva, but so far only a few studies have investigated the ecotoxicological effects of this compound on microalgae. The purpose of this study was to assess the ecotoxicological impact of Irgarol 1051 on the algal communities of Lake Geneva, and to compare its phytotoxicity to that of the common triazine herbicide, atrazine. We investigated the response of phytoplanktonic and periphytonic algal communities and single-species isolates collected from the lake, to the PS II inhibitor Irgarol 1051 (growth, proxy of photosynthetic activity and community structure). A short-term bioassay was developed based on in vivo fluorescence, together with nanocosm experiments with natural algal communities, and single-species tests on algal strains isolated from the lake. The toxicity of Irgarol 1051 towards periphyton and phytoplankton was shown to be higher than that of atrazine. Indications of the tolerance induced by this triazine in the algal communities of Lake Geneva, suggests that even at the levels of contamination reported in some parts of the lake, Irgarol 1051 is already exerting selection pressure. Information about sensitivities, selection and tolerance from laboratory experiments are used to explain the observations in natural microalgal communities from the lake.
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Affiliation(s)
- A Bérard
- UMR CARRTEL, INRA/Univ. Savoie, Station d'Hydrobiologie Lacustre, B.P. 511, 74203 Thonon-les-Bains, France
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Hedoux A, Dore J, Guinet Y, Bellissent-Funel MC, Prevost D, Descamps M, Grandjean D. Analysis of the local order in the glacial state of triphenyl phosphite by neutron diffraction. Phys Chem Chem Phys 2002. [DOI: 10.1039/b206019a] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Le Maux P, Saillard JY, Grandjean D, Jaouen G. Effect of substituents on the structure and catalytic activity of arene chromium tricarbonyls. J Org Chem 2002. [DOI: 10.1021/jo01310a059] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mignani G, Barzoukas M, Zyss J, Soula G, Balegroune F, Grandjean D, Josse D. Improved transparency-efficiency trade-off in a new class of nonlinear organosilicon compounds. Organometallics 2002. [DOI: 10.1021/om00056a043] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Southern TG, Oehmichen U, Le Marouille JY, Le Bozec H, Grandjean D, Dixneuf PH. Use of organometallic ligands in the synthesis of carbon disulfide-bridged heterodinuclear complexes. X-ray structure of (PhMe2P)2(CO)2FeCS2Mn(CO)2C5H5. Inorg Chem 2002. [DOI: 10.1021/ic50212a026] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Le Magueres P, Ouahab L, Golhen S, Grandjean D, Pena O, Jegaden JC, Gomez-Garcia CJ, Delhaes P. Diamagnetic and Paramagnetic Keggin Polyoxometalate Salts Containing 1-D and 3-D decamethylferrocenium Networks: Preparation, Crystal Structures and Magnetic Properties of [Fe(C5Me5)2]4(POM)(solv)n (POM = [SiMo12O40]4-, [SiW12O40]4-, [PMo12O40]4-, [HFeW12O40]4-; solv = H2O, C3H7ON, CH3CN). Inorg Chem 2002. [DOI: 10.1021/ic00101a008] [Citation(s) in RCA: 106] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wu Z, Benfield RE, Wang Y, Guo L, Tan M, Zhang H, Ge Y, Grandjean D. EXAFS study on the local atomic structures around iron in glycosylated haemoglobin. Phys Med Biol 2001; 46:N71-7. [PMID: 11277235 DOI: 10.1088/0031-9155/46/3/403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Samples with 5.1%, 9.8% and 15.3% HbA1c were extracted from normal subjects and patients with slight and serious diabetes respectively. Extended x-ray absorption fine structure spectra of Fe K absorption were collected at the EXAFS experimental station of the Beijing Synchrotron Radiation Facility. The step-by-step fluorescent mode was employed with a count time of 10 s per point. Several independent scans were averaged to eliminate the statistical noise. Reference backscattering amplitudes and phaseshifts were calculated using the curve wave theory (FEFF code) of EXAFS. Apart from the nitrogen neighbours around the central iron atom, oxygen neighbours are also found. The Fe-N bond length increases by about 0.02 A for the sample with 15.3% HbA1c compared with the others, but the Fe-O bond length is almost unchanged. With increasing of HbA1c concentration, the content of Hb increases and the content of HbO2 decreases. This demonstrates that the glycosylation of haemoglobin will decrease its ability to carry oxygen.
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Affiliation(s)
- Z Wu
- BSRL, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China.
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Hubert P, Chiap P, Crommen J, Boulanger B, Chapuzet E, Mercier N, Bervoas-Martin S, Chevalier P, Grandjean D, Lagorce P, Lallier M, Laparra M, Laurentie M, Nivet J. The SFSTP guide on the validation of chromatographic methods for drug bioanalysis: from the Washington Conference to the laboratory. Anal Chim Acta 1999. [DOI: 10.1016/s0003-2670(99)00106-3] [Citation(s) in RCA: 193] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Grandjean D, Sergheraert R, Valette JP, Driss F. Biological and nutritional consequences of work at high altitude in search and rescue dogs: the scientific expedition Chiens des Cimes-Licancabur 1996. J Nutr 1998; 128:2694S-2697S. [PMID: 9868244 DOI: 10.1093/jn/128.12.2694s] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- D Grandjean
- Brigade de Sapeurs Pompiers de Paris et Unité de Médecine de L'Elevage et du Sport, Ecole Nationale Vétérinaire d'Alfort, F-94704 Maisons-Alfort
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Abstract
Four mathematical approaches are proposed to determine optimal ranges of nutrients for specified purposes. For exercise, the diet must provide optimal mixtures of fuels, also optimal amounts of nutrients conducive to a sound structure, a desired power/weight ratio, a water-electrolyte system that resists dehydration and buffers hydrogen ions, a tolerance to the cumulative stress of repetitive competition and tractable attitude. The nutritional strategy of carbohydrate loading risks a variety of abnormalities in dogs and horses. An alternative strategy of fat adaptation (the combination of fat feeding and training) was found to improve aerobic performance in dogs and horses and to spare glycogen utilization and reduce lactate accumulation. Surprisingly, improved anaerobic performance has also been confirmed in fat-adapted horses that have been sprint trained. Fat adaptation increased the blood lactate responses to incremental tests and repeated sprints. Blood lactate accumulation during repeated sprints was affected synergistically by the combination of fat adaptation and sodium bicarbonate supplementation. Fat adaptation in horses appears to facilitate metabolic regulation to achieve power needs, with glycolysis decreasing during aerobic work but increasing during anaerobic work and with blood lactate changes following accordingly. Interactions between fat adaptation and dietary cation-anion balance need further investigation.
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Affiliation(s)
- D S Kronfeld
- Department of Animal Science, Virginia Polytechnic Institute and State University, Blacksburg 24061-0306
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Grandjean D, Pale P, Chuche J. An improved procedure for aldehyde-to-alkyne homologation via 1,1-dibromoalkenes; synthesis of 1-bromoalkynes. Tetrahedron Lett 1994. [DOI: 10.1016/s0040-4039(00)73227-8] [Citation(s) in RCA: 70] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Matt D, Guillemin JC, Ziessel R, Balegroune F, Grandjean D. Hybrid ligands. Structure of a palladium(II) complex containing a pyrazolol-derived phosphine ligand, [(o-C6H4CH2NMe2)Pd(Ph2P{C=C(O)N(Ph)N=C(Me)})]. Acta Crystallogr C 1994. [DOI: 10.1107/s010827019300664x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Fettouhi M, Ouahab L, Grandjean D, Toupet L. Structures at 293 and 100 K of β-tetrakis[bis(ethylenedithio)tetrathiafulvalene] tetracyanonickelate(II): β-[BEDT-TTF]4[Ni(CN)4]. Acta Crystallogr B Struct Sci 1993. [DOI: 10.1107/s0108768192010279] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Abstract
A compound has been synthesized with the formula (rad)(2)Mn(2)[Cu(opba)](3)(DMSO)(2).2H(2)O, where rad(+) is 2-(4-N-methylpyridinium)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide, opba is orthophenylenebis(oxamato), and DMSO is dimethyl sulfoxide. It consists of two nearly perpendicular graphite-like networks with edge-sharing Mn(II)(6)Cu(II)(6) hexagons. The two networks are fully interlocked with the same topological relationship as that between adjacent rings of a necklace. The compound has three kinds of spin carriers: Mn(II) and Cu(II) ions, antiferromagnetically coupled through oxamato bridges, and rad(+) radical cations, bridging the Cu(II) ions through the nitronyl nitroxide groups and forming Cu-rad chains. The temperature dependence of the magnetization reveals that below 22.5 K, the compound behaves as a magnet.
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Mhanni A, Ouahab L, Grandjean D, Amouroux J, Fabre JM. Structures of 3,4-dimethyl-2,2',5,5'-tetrathiafulvalene perrhenate, (DMTTF)ReO4, and 3',4'-dimethyl-3,4-tetramethylene-2,5-dithia-2',5'-diselenafulvalene hexafluorophosphate, (CHDTDMDSF)PF6. Acta Crystallogr C 1993. [DOI: 10.1107/s0108270192013222] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Triki S, Ouahab L, Grandjean D, Garin J, Uriel S, Fabre JM. Structure of the bis(7,7,8,8-tetracyano-p-quinodimethane)–4-(benzylmethylaminomethyl)-2,2',5,5'-tetrathiafulvalene charge-transfer complex. Acta Crystallogr C 1993. [DOI: 10.1107/s0108270192013313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Ziessel R, Noblat-Chardon S, Deronzier A, Matt D, Toupet L, Balgroune F, Grandjean D. Comparative structural studies of [(η5-Me5C5)IrI(2,2'-bipyridine–4,4'-COOH)] and [(η5-Me5C5)IrIII{2,2'-bipyridine-4,4'-COO(CH2)3-pyrrole}Cl]ClO4. Acta Crystallogr B Struct Sci 1993. [DOI: 10.1107/s0108768192012060] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Triki S, Ouahab L, Grandjean D. Structure of the tetrakis(2,2',5,5'-tetrathiafulvalene) hexatungstate acetonitrile solvate salt (TTF)4W6O19.0.5(CH3CN). Acta Crystallogr C 1993. [DOI: 10.1107/s0108270192008643] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Fettouhi M, Ouahab L, Grandjean D, Mousdis G, Delhaes P. Structure of two tetrakis(3,4-ethylenedithio-2,2',5,5'-tetrathiafulvalene) tetracyanometallate dihydrate salts: β-[EDTTTF]4[M(CN)4].2H2O, M = PtII, PdII. Acta Crystallogr C 1992. [DOI: 10.1107/s0108270192003676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Fettouhi M, Ouahab L, Grandjean D, Mousdis G, Delhaes P. Structures of some quasi-two-dimensional molecular conductors. I. Structure of κ-tetrakis(3,4-methylenedithio-2,2',5,5'-tetrathiafulvalen)ium tetracyanoplatinate dihydrate: κ-(MDTTTF)4Pt(CN)4(H2O)2. Acta Crystallogr C 1992. [DOI: 10.1107/s0108270192002750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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