1
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Dramburg S, Grittner U, Potapova E, Travaglini A, Tripodi S, Arasi S, Pelosi S, Acar Şahin A, Aggelidis X, Barbalace A, Bourgoin A, Bregu B, Brighetti MA, Caeiro E, Caglayan Sozmen S, Caminiti L, Charpin D, Couto M, Delgado L, Di Rienzo Businco A, Dimier C, Dimou MV, Fonseca JA, Goksel O, Hernandez D, Hernandez Toro CJ, Hoffmann TM, Jang DT, Kalpaklioglu F, Lame B, Llusar R, Makris M, Mazon A, Mesonjesi E, Nieto A, Öztürk AB, Pahus L, Pajno G, Panasiti I, Papadopoulos NG, Pellegrini E, Pereira AM, Pereira M, Pinar NM, Priftanji A, Psarros F, Sackesen C, Sfika I, Suarez J, Thibaudon M, Uguz U, Verdier V, Villella V, Xepapadaki P, Yazici D, Matricardi PM. Heterogeneity of sensitization profiles and clinical phenotypes among patients with seasonal allergic rhinitis in Southern European countries-The @IT.2020 multicenter study. Allergy 2024; 79:908-923. [PMID: 38311961 DOI: 10.1111/all.16029] [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: 05/15/2023] [Revised: 11/30/2023] [Accepted: 12/04/2023] [Indexed: 02/06/2024]
Abstract
BACKGROUND Pollen allergy poses a significant health and economic burden in Europe. Disease patterns are relatively homogeneous within Central and Northern European countries. However, no study broadly assessed the features of seasonal allergic rhinitis (SAR) across different Southern European countries with a standardized approach. OBJECTIVE To describe sensitization profiles and clinical phenotypes of pollen allergic patients in nine Southern European cities with a uniform methodological approach. METHODS Within the @IT.2020 multicenter observational study, pediatric and adult patients suffering from SAR were recruited in nine urban study centers located in seven countries. Clinical questionnaires, skin prick tests (SPT) and specific IgE (sIgE) tests with a customized multiplex assay (Euroimmun Labordiagnostika, Lübeck, Germany) were performed. RESULTS Three hundred forty-eight children (mean age 13.1 years, SD: 2.4 years) and 467 adults (mean age 35.7 years SD: 10.0 years) with a predominantly moderate to severe, persistent phenotype of SAR were recruited. Grass pollen major allergenic molecules (Phl p 1 and/or Phl p 5) ranged among the top three sensitizers in all study centers. Sensitization profiles were very heterogeneous, considering that patients in Rome were highly poly-sensitized (sIgE to 3.8 major allergenic molecules per patient), while mono-sensitization was prominent and heterogeneous in other cities, such as Marseille (sIgE to Cup a 1: n = 55/80, 68.8%) and Messina (sIgE to Par j 2: n = 47/82, 57.3%). Co-sensitization to perennial allergens, as well as allergic comorbidities also broadly varied between study centers. CONCLUSIONS In Southern European countries, pollen allergy is heterogeneous in terms of sensitization profiles and clinical manifestations. Despite the complexity, a unique molecular, multiplex, and customized in-vitro IgE test detected relevant sensitization in all study centers. Nevertheless, this geographical diversity in pollen allergic patients imposes localized clinical guidelines and study protocols for clinical trials of SAR in this climatically complex region.
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Affiliation(s)
- S Dramburg
- Department of Pediatric Respiratory Care, Immunology and Intensive Care Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - U Grittner
- Institute of Biometry and Clinical Epidemiology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - E Potapova
- Department of Pediatric Respiratory Care, Immunology and Intensive Care Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - A Travaglini
- Department of Biology, Tor Vergata University, Rome, Italy
- Italian Aerobiology Monitoring Network - Italian Aerobiology Association, Rome, Italy
| | - S Tripodi
- Pediatric Allergy Unit, Sandro Pertini Hospital, Rome, Italy
- Allergolology Service, Policlinico Casilino, Rome, Italy
| | - S Arasi
- Department of Pediatric Respiratory Care, Immunology and Intensive Care Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany
- Pediatric Allergology Unit, Department of Pediatric Medicine, Bambino Gesù Children's Research Hospital (IRCCS), Rome, Italy
| | | | - A Acar Şahin
- Department of Biology, Faculty of Science, Ankara University, Ankara, Turkey
| | - X Aggelidis
- Allergy Unit, 2nd Department of Dermatology and Venereology, National and Kapodistrian University of Athens, University Hospital "Attikon", Athens, Greece
| | - A Barbalace
- Allergy Unit, Department of Pediatrics, University of Messina, Messina, Italy
| | - A Bourgoin
- Department of Pneumonology and Allergy, La Timone Hospital, APHM, Aix-Marseille University, Marseille, France
| | - B Bregu
- Department of Allergology and Clinical Immunology, UHC Mother Teresa, Medical University Tirana, Tirana, Albania
| | - M A Brighetti
- Department of Biology, Tor Vergata University, Rome, Italy
| | - E Caeiro
- MED- Mediterranean Institute for Agriculture, Environment and Development, Institute for Advanced Studies and Research, University of Évora, Évora, Portugal
- Portuguese Society of Allergology and Clinical Immunology, Lisbon, Portugal
| | | | - L Caminiti
- Allergy Unit, Department of Pediatrics, University of Messina, Messina, Italy
| | - D Charpin
- Department of Pneumonology and Allergy, La Timone Hospital, APHM, Aix-Marseille University, Marseille, France
| | - M Couto
- Immunoallergology, Hospital CUF Trindade, Porto, Portugal
| | - L Delgado
- Basic and Clinical Immunology Unit, Department of Pathology, Faculty of Medicine, University of Porto, Porto, Portugal
- CINTESIS@RISE, MEDCIDS, Faculty of Medicine of the University of Porto, Porto, Portugal
- Allergy Unit, Instituto & Hospital CUF Porto, Porto, Portugal
| | | | - C Dimier
- Department of Pneumonology and Allergy, La Timone Hospital, APHM, Aix-Marseille University, Marseille, France
| | - M V Dimou
- Allergy Department, 2nd Pediatric Clinic, Athens General Children's Hospital "P&A Kyriakou", University of Athens, Athens, Greece
| | - J A Fonseca
- CINTESIS@RISE, MEDCIDS, Faculty of Medicine of the University of Porto, Porto, Portugal
- Allergy Unit, Instituto & Hospital CUF Porto, Porto, Portugal
- MEDCIDS-Department of Community Medicine, Information, and Health Sciences, Faculty of Medicine, University of Porto, Porto, Portugal
| | - O Goksel
- Department of Pulmonary Medicine, Division of Immunology, Allergy and Asthma. Faculty of Medicine, Ege University, Izmir, Turkey
| | - D Hernandez
- Department of Allergy, Health Research Institute Hospital La Fe, Valencia, Spain
| | - C J Hernandez Toro
- Department of Pediatric Respiratory Care, Immunology and Intensive Care Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany
- Institute of Biometry and Clinical Epidemiology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - T M Hoffmann
- Department of Pediatric Respiratory Care, Immunology and Intensive Care Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - D T Jang
- Pediatric Allergy and Pneumology Unit, Children's Hospital La Fe; Health Research Institute La Fe, Valencia, Spain
| | - F Kalpaklioglu
- Department of Immunology and Allergic Diseases, Kırıkkale University School of Medicine, Kırıkkale, Turkey
| | - B Lame
- Department of Allergology and Clinical Immunology, UHC Mother Teresa, Medical University Tirana, Tirana, Albania
| | - R Llusar
- Pediatric Allergy and Pneumology Unit, Children's Hospital La Fe; Health Research Institute La Fe, Valencia, Spain
| | - M Makris
- Allergy Unit, 2nd Department of Dermatology and Venereology, National and Kapodistrian University of Athens, University Hospital "Attikon", Athens, Greece
| | - A Mazon
- Pediatric Allergy and Pneumology Unit, Children's Hospital La Fe; Health Research Institute La Fe, Valencia, Spain
| | - E Mesonjesi
- Department of Allergology and Clinical Immunology, UHC Mother Teresa, Medical University Tirana, Tirana, Albania
| | - A Nieto
- Pediatric Allergy and Pneumology Unit, Children's Hospital La Fe; Health Research Institute La Fe, Valencia, Spain
| | - A B Öztürk
- Division of Allergy and Immunology, Department of Pulmonary Medicine, Arel University, School of Medicine, Istanbul, Turkey
| | - L Pahus
- Aix Marseille Univ, APHM, INSERM CIC 1409, INSERM U1263, INRA 1260 (C2VN), Marseille, France
| | - G Pajno
- Allergy Unit, Department of Pediatrics, University of Messina, Messina, Italy
| | - I Panasiti
- Allergy Unit, Department of Pediatrics, University of Messina, Messina, Italy
| | - N G Papadopoulos
- Allergy Department, 2nd Pediatric Clinic, Athens General Children's Hospital "P&A Kyriakou", University of Athens, Athens, Greece
- Division of Infection, Immunity & Respiratory Medicine, Royal Manchester Children's Hospital, University of Manchester, Manchester, UK
| | - E Pellegrini
- Department of Reggio Calabria, ARPA - Regional Agency for Environmental Protection, Calabria, Italy
| | - A M Pereira
- Allergy Unit, Instituto & Hospital CUF Porto, Porto, Portugal
- MEDCIDS-Department of Community Medicine, Information, and Health Sciences, Faculty of Medicine, University of Porto, Porto, Portugal
| | - M Pereira
- Basic and Clinical Immunology Unit, Department of Pathology, Faculty of Medicine, University of Porto, Porto, Portugal
- CINTESIS@RISE, MEDCIDS, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - N M Pinar
- Department of Biology, Faculty of Science, Ankara University, Ankara, Turkey
| | - A Priftanji
- Department of Allergology and Clinical Immunology, UHC Mother Teresa, Medical University Tirana, Tirana, Albania
| | - F Psarros
- Allergy Department, Athens Naval Hospital, Athens, Greece
| | - C Sackesen
- Division of Pediatric Allergy, Koç University School of Medicine, Istanbul, Turkey
| | - I Sfika
- Pediatric Allergy Unit, Sandro Pertini Hospital, Rome, Italy
| | - J Suarez
- Department of Biology of Organisms and Systems, Area of Botany, University of Oviedo, Oviedo, Spain
| | - M Thibaudon
- Réseau National de Surveillance Aérobiologique, Brussieu, France
| | - U Uguz
- Department of Biology, Faculty of Science, Ege University, Izmir, Turkey
| | - V Verdier
- Department of Pneumonology and Allergy, La Timone Hospital, APHM, Aix-Marseille University, Marseille, France
| | - V Villella
- Pediatric Allergy Unit, Sandro Pertini Hospital, Rome, Italy
| | - P Xepapadaki
- Allergy Department, 2nd Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - D Yazici
- Cellular and Molecular Medicine, KUTTAM, Graduate School of Health Sciences, Koç University, Istanbul, Turkey
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - P M Matricardi
- Department of Pediatric Respiratory Care, Immunology and Intensive Care Medicine, Charité - Universitätsmedizin Berlin, Berlin, Germany
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Pellegrini E, Boscutti F, Alberti G, Casolo V, Contin M, De Nobili M. Stand age, degree of encroachment and soil characteristics modulate changes of C and N cycles in dry grassland soils invaded by the N 2-fixing shrub Amorpha fruticosa. Sci Total Environ 2021; 792:148295. [PMID: 34147804 DOI: 10.1016/j.scitotenv.2021.148295] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 01/13/2021] [Revised: 05/28/2021] [Accepted: 06/01/2021] [Indexed: 06/12/2023]
Abstract
The N2-fixing shrub Amorpha fruticosa L. is rapidly spreading in the dry riparian natural grasslands of Europe, altering ecosystem functions and depleting plant diversity. Alteration of the N cycle represents the key factor involved in invasions by N2-fixing plants with cascading effects on plant species richness. We hypothesized that A. fruticosa encroachment strongly impacts not only the N but also the C cycle and that the magnitude of such alterations may be modulated by soil characteristics. To test these hypotheses, we selected four river floodplains in North East of Italy and compared natural uninvaded grasslands with half invaded and completely invaded sites, based on A. fruticosa stand characteristic and relevant leaf traits and on soil properties related to soil texture and to C and N cycles. Soil organic matter mineralisation, ammonification and nitrification rates were determined. Soil nitrification increased remarkably with plant invasion while ammonification was significantly higher only in half invaded sites. Soil organic matter mineralisation, microbial biomass C sustained per soil organic C unit and nitrification positively correlated with stand age, regardless to the stage of the encroachment. Mineralisation and nitrification increased with soil organic C and total N in uninvaded and completely invaded sites, but decreased in half invaded sites. At the half invasion stage, trends in nitrification and CO2 mineralisation were transitionally reverted and remediation may be facilitated by less pronounced changes in soil properties compared to completely invaded sites. Direct effects of plant invasion are modulated by the action of soil characteristics such as soil organic C and clay contents, with soils rich in organic C showing larger nitrification and mineralisation rates.
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Affiliation(s)
- E Pellegrini
- Department of Biology, University of Copenhagen, Universitetsparken 4, 3rd floor, 2100, København Ø, Denmark; Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze 206, 33100, Udine, Italy.
| | - F Boscutti
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze 206, 33100, Udine, Italy
| | - G Alberti
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze 206, 33100, Udine, Italy
| | - V Casolo
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze 206, 33100, Udine, Italy
| | - M Contin
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze 206, 33100, Udine, Italy
| | - M De Nobili
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze 206, 33100, Udine, Italy
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Pellegrini E, Buccheri M, Martini F, Boscutti F. Agricultural land use curbs exotic invasion but sustains native plant diversity at intermediate levels. Sci Rep 2021; 11:8385. [PMID: 33863976 PMCID: PMC8052428 DOI: 10.1038/s41598-021-87806-7] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 03/30/2021] [Indexed: 02/02/2023] Open
Abstract
Unveiling the processes driving exotic plant invasion represent a central issue in taking decisions aimed at constraining the loss of biodiversity and related ecosystem services. The invasion success is often linked to anthropogenic land uses and warming due to climate change. We studied the responses of native versus casual and naturalised exotic species richness to land uses and climate at the landscape level, relying on a large floristic survey undertaken in North - Eastern Italy. Both climate and land use drove exotic species richness. Our results suggest that the success of plant invasion at this scale is mainly due to warm climatic conditions and the extent of urban and agricultural land, but with different effects on casual and naturalized exotic species. The occurrence of non-linear trends showed that a small percentage of extensive agricultural land in the landscape may concurrently reduce the number of exotic plant while sustaining native plant diversity. Plant invasion could be potentially limited by land management, mainly focusing on areas with extensive agricultural land use. A more consciousness land management is more and more commonly required by local administrations. According to our results, a shift of intensive to extensive agricultural land, by implementing green infrastructures, seems to be a win-win solution favouring native species while controlling the oversimplification of the flora due to plant invasion.
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Affiliation(s)
- E. Pellegrini
- grid.5254.60000 0001 0674 042XFreshwater Biological Laboratory, Department of Biology, University of Copenhagen, Universitetsparken 4, 3rd floor, 2100 Copenhagen, Denmark ,grid.5390.f0000 0001 2113 062XDepartment of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze 91, 33100 Udine, Italy
| | - M. Buccheri
- Museo Friulano di Storia Naturale di Udine, via Cecilia Gradenigo Sabbadini, 22-32, 33100 Udine, Italy
| | | | - F. Boscutti
- grid.5390.f0000 0001 2113 062XDepartment of Agricultural, Food, Environmental and Animal Sciences, University of Udine, via delle Scienze 91, 33100 Udine, Italy
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4
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Bailo L, Vimercati P, Caslini M, Damiano S, Pellegrini E. Personality disorder not otherwise specified heterogeneity and its implication in psychiatric residential treatment. Eur Psychiatry 2021. [PMCID: PMC9471116 DOI: 10.1192/j.eurpsy.2021.626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Villa Ratti is a therapeutic community dedicated to the treatment of Personality Disorder with a particular focus on Borderline Personality Disorder (BPD), but this diagnosis may manifest in very different clinical conditions (Bayer & Parker, 2017; Scott, 2017). Objectives
Since the second most common diagnosis we encounter from referring psychiatrists is Personality Disorder Not Otherwise Specified (PDNOS) (26,4%) and this diagnosis serves sometimes as a skeleton key for complex or unclear diagnostic scenarios (Verheul & Widiger, 2004), our main goal is to investigate how the variability within this category is reflected in terms of diagnostic accuracy, different development of the therapeutic and rehabilitative course, and of different outcomes at the end of the treatment. Methods To reach this goal, we collected data on all patients referred with a PDNOS diagnosis and compared their treatment program. scenarios. Results Our data showed how a PDNOS diagnosis hid in most cases complex personality disorders and comorbidities that reflected different specific difficulties and interventions during their treatment and, consequently, resulted in different outcomes. Conclusions Our experience led us to give additional attention to referred PDNOS diagnosis and to observe how much a clear diagnostic picture of a patient is crucial to correctly plan a treatment program and adapt local service interventions both for personality disorder and comorbidity
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5
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Hoffmann TM, Travaglini A, Brighetti MA, Acar Şahin A, Arasi S, Bregu B, Caeiro E, Caglayan Sozmen S, Charpin D, Delgado L, Dimou M, Fiorilli M, Fonseca JA, Goksel O, Kalpaklioglu F, Lame B, Mazon A, Mesonjesi E, Nieto A, Öztürk A, Pajno G, Papadopoulos NG, Pellegrini E, Pereira AM, Pereira M, Pinar NM, Pinter E, Priftanji A, Sackesen C, Sfika I, Suarez J, Thibaudon M, Tripodi S, Ugus U, Villella V, Matricardi PM, Dramburg S. Cumulative Pollen Concentration Curves for Pollen Allergy Diagnosis. J Investig Allergol Clin Immunol 2020; 31:340-343. [PMID: 32959781 DOI: 10.18176/jiaci.0646] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- T M Hoffmann
- Department of Pediatric Pneumology, Immunology and Intensive Care Medicine, Charité Medical University, Berlin, Germany
| | - A Travaglini
- Department of Biology, Tor Vergata University, Rome, Italy.,Italian Aerobiology Monitoring Network - Italian Aerobiology Association, Italy
| | - M A Brighetti
- Department of Biology, Tor Vergata University, Rome, Italy
| | - A Acar Şahin
- Department of Biology, Faculty of Science, Ankara University, Ankara, Turkey
| | - S Arasi
- Pediatric Allergology Unit, Department of Pediatric Medicine, Bambino Gesù Children´s research Hospital (IRCCS), Rome, Italy
| | - B Bregu
- Department of Allergology and Clinical Immunology, UHC Mother Teresa, Medical University Tirana, Albania
| | - E Caeiro
- Mediterranean Institute for Agriculture, Environmental and Development, University of Évora, Évora, Portugal.,Portuguese Society of Allergology and Clinical Immunology, Lisbon, Portugal
| | - S Caglayan Sozmen
- Department of Pediatric Allergy and Immunology, Okan University Faculty of Medicine, Istanbul, Turkey
| | - D Charpin
- Department of Pneumonology and Allergy, La Timone Hospital, APHM, Aix-Marseille University, Marseille, France
| | - L Delgado
- Basic and Clinical Immunology Unit, Department of Pathology, Faculty of Medicine, University of Porto, Porto, Portugal.,CINTESIS, Center for Health Technology and Services Research, Porto, Portugal.,Allergy Unit, Instituto & Hospital CUF Porto, Porto, Portugal
| | - M Dimou
- Allergy Department, 2nd Pediatric Clinic, Athens General Children´s Hospital "P&A Kyriakou," University of Athens, Athens, Greece
| | - M Fiorilli
- Department of Translational and Precision Medicine, Sapienza University, Rome, Italy
| | - J A Fonseca
- CINTESIS, Center for Health Technology and Services Research, Porto, Portugal.,Allergy Unit, Instituto & Hospital CUF Porto, Porto, Portugal.,MEDCIDS-Department of Community Medicine, Information, and Health Sciences, Faculty of Medicine, University of Porto, Porto, Portugal
| | - O Goksel
- Department of Pulmonary Medicine, Division of Immunology, Allergy and Asthma, Faculty of Medicine, Ege University, Izmir, Turkey
| | - F Kalpaklioglu
- Kırıkkale University School of Medicine, Department of Chest Diseases, Division of Immunology and Allergic Diseases, Turkey
| | - B Lame
- Department of Allergology and Clinical Immunology, UHC Mother Teresa, Medical University Tirana, Albania
| | - A Mazon
- Pediatric Allergy and Pneumology Unit, Children´s Hospital La Fe; Health Research Institute La Fe, Valencia, Spain
| | - E Mesonjesi
- Department of Allergology and Clinical Immunology, UHC Mother Teresa, Medical University Tirana, Albania
| | - A Nieto
- Pediatric Allergy and Pneumology Unit, Children´s Hospital La Fe; Health Research Institute La Fe, Valencia, Spain
| | - A Öztürk
- Department of Allergy and Immunology, Koç University Hospital, İstanbul, Turkey
| | - G Pajno
- Department of Pediatrics- Allergy Unit, University of Messina, Messina, Italy
| | - N G Papadopoulos
- Allergy Department, 2nd Pediatric Clinic, Athens General Children´s Hospital "P&A Kyriakou," University of Athens, Athens, Greece.,Division of Infection, Immunity & Respiratory Medicine, Royal Manchester Children´s Hospital, University of Manchester, Manchester, UK
| | - E Pellegrini
- ARPACal- Regional Agency for Environmental Protection, Department of Reggio Calabria, Italy
| | - A M Pereira
- CINTESIS, Center for Health Technology and Services Research, Porto, Portugal.,Allergy Unit, Instituto & Hospital CUF Porto, Porto, Portugal
| | - M Pereira
- CINTESIS, Center for Health Technology and Services Research, Porto, Portugal.,Allergy Unit, Instituto & Hospital CUF Porto, Porto, Portugal
| | - N M Pinar
- Department of Biology, Faculty of Science, Ankara University, Ankara, Turkey
| | - E Pinter
- Allergy Department, 2nd Pediatric Clinic, Athens General Children´s Hospital "P&A Kyriakou," University of Athens, Athens, Greece
| | - A Priftanji
- Department of Allergology and Clinical Immunology, UHC Mother Teresa, Medical University Tirana, Albania
| | - C Sackesen
- Division of Pediatric Allergy, Koç University School of Medicine, Istanbul, Turkey
| | - I Sfika
- Pediatric Allergy Unit, Sandro Pertini Hospital, Rome, Italy
| | - J Suarez
- Department of Biology of Organisms and Systems, Area of Botany, University of Oviedo, Oviedo, Spain
| | - M Thibaudon
- Réseau National de Surveillance Aérobiologique, Brussieu, France
| | - S Tripodi
- Pediatric Allergy Unit, Sandro Pertini Hospital, Rome, Italy
| | - U Ugus
- Department of Biology, Faculty of Science, Ege University, Izmir, Turkey
| | - V Villella
- Pediatric Allergy Unit, Sandro Pertini Hospital, Rome, Italy
| | - P M Matricardi
- Department of Pediatric Pneumology, Immunology and Intensive Care Medicine, Charité Medical University, Berlin, Germany
| | - S Dramburg
- Department of Pediatric Pneumology, Immunology and Intensive Care Medicine, Charité Medical University, Berlin, Germany
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Lugari S, Nascimbeni F, Mondelli A, Bursi S, Onfiani G, Milazzo M, Pellegrini E, Carubbi F. Efficacy And Safety Of Pcsk9 Inhibitors: The Real-Life Experience Of The Lipid Clinic In Modena, Italy. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.608] [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: 10/26/2022]
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7
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Pellegrini E, Petranich E, Acquavita A, Canário J, Emili A, Covelli S. Mercury uptake by halophytes in response to a long-term contamination in coastal wetland salt marshes (northern Adriatic Sea). Environ Geochem Health 2017; 39:1273-1289. [PMID: 28555279 DOI: 10.1007/s10653-017-9981-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 12/21/2016] [Accepted: 05/15/2017] [Indexed: 06/07/2023]
Abstract
Mercury (Hg) distribution in saltmarsh sediments and in three selected halophytes (Limonium narbonense, Sarcocornia fruticosa and Atriplex portulacoides) of a wetland system (Marano and Grado Lagoon, Italy) following a contamination gradient in sediments was investigated. The Hg uptake was evaluated at the root system level by calculating the enrichment factor (EF) and in the aboveground tissues by means of the translocation factor (TF). The related methylmercury (MeHg) concentrations in the halophytes were also investigated with regard to the location of the sites and their degree of contamination. Hg concentration in halophytes seemed poorly correlated both with the total Hg in rhizo-sediments and with the specific plant considered, supporting the evidence that the chemico-physical parameters of sediments could significantly affect metal availability for plants. Hg concentrations in roots increased with depth and were 20-fold higher than content measured in related rhizo-sediments (high EF). A low content of Hg is translocated in aboveground tissues (very low TF values), thus highlighting a kind of avoidance strategy of these halophytes against Hg toxicity. MeHg values were comparable between the two sites and among species, but the translocation from below- to aboveground plant tissues was more active.
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Affiliation(s)
- E Pellegrini
- Department of Agro-Food, Environmental and Animal Sciences, University of Udine, Via delle Scienze 206, 33100, Udine, Italy
| | - E Petranich
- Department of Mathematics and Geosciences, University of Trieste, Via Weiss 2, 34128, Trieste, Italy
| | - A Acquavita
- ARPA FVG, Environmental Protection Agency of Friuli Venezia Giulia, Via Cairoli 14, 33057, Palmanova, Udine, Italy
| | - J Canário
- Centro de Química Estrutural, Instítuto Superíor Técnico, Universidade de Lisboa, 1049-001, Lisbon, Portugal
| | - A Emili
- Department of Mathematics and Geosciences, University of Trieste, Via Weiss 2, 34128, Trieste, Italy
| | - S Covelli
- Department of Mathematics and Geosciences, University of Trieste, Via Weiss 2, 34128, Trieste, Italy.
- Co.N.I.S.Ma. Consorzio Nazionale Interuniversitario per le Scienze del Mare, Piazzale Flaminio 9, 00196, Rome, Italy.
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Abstract
The MDANSE software-Molecular Dynamics Analysis of Neutron Scattering Experiments-is presented. It is an interactive application for postprocessing molecular dynamics (MD) simulations. Given the widespread use of MD simulations in material and biomolecular sciences to get a better insight for experimental techniques such as thermal neutron scattering (TNS), the development of MDANSE has focused on providing a user-friendly, interactive, graphical user interface for analyzing many trajectories in the same session and running several analyses simultaneously independently of the interface. This first version of MDANSE already proposes a broad range of analyses, and the application has been designed to facilitate the introduction of new analyses in the framework. All this makes MDANSE a valuable tool for extracting useful information from trajectories resulting from a wide range of MD codes.
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Affiliation(s)
- G Goret
- Computing for Science Group, Institut Laue-Langevin , 71 avenue des Martyrs, 38042 Grenoble, France
| | - B Aoun
- Computing for Science Group, Institut Laue-Langevin , 71 avenue des Martyrs, 38042 Grenoble, France
| | - E Pellegrini
- Computing for Science Group, Institut Laue-Langevin , 71 avenue des Martyrs, 38042 Grenoble, France
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9
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Balogun JA, Helgemoe S, Pellegrini E, Hoeberlein T. Test-Retest Reliability of a Psychometric Instrument Designed to Measure Physical Therapy Students’ Burnout. Percept Mot Skills 2016; 81:667-72. [PMID: 8570376 DOI: 10.1177/003151259508100261] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The purpose of this study was to assess the reproducibility of scores on an instrument designed to measure physical therapy students’ burnout. Physical therapy students (28 juniors and 28 seniors) completed an adapted educators version of the Maslach Burnout Inventory on two occasions within a week interval. At each testing session, a separate score was obtained for each student for the three (emotional exhaustion, depersonalization, and personal accomplishment) subscales of the instrument. These scores, analyzed with a two-factor repeated-measures analysis of variance, indicated a significant difference in the personal accomplishment score between the junior and senior students during the two time frames. Scheffé post hoc tests showed that the junior students reported higher personal accomplishment affect at both testing sessions than the senior students. Both junior and senior students reported higher personal accomplishment at retest than at baseline testing. A test-retest reliability coefficient of .850 was obtained for the Depersonalization subscale; .907 and .715 were obtained for the Emotional Exhaustion and Personal Accomplishment subscales, respectively.
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Affiliation(s)
- J A Balogun
- State University of New York Health Science Center at Brooklyn, Program in Physical Therapy 11203, USA
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10
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Petaccia M, Condello M, Giansanti L, La Bella A, Leonelli F, Meschini S, Gradella Villalva D, Pellegrini E, Ceccacci F, Galantini L, Mancini G. Correction: Inclusion of new 5-fluorouracil amphiphilic derivatives in liposome formulation for cancer treatment. Med Chem Commun 2016. [DOI: 10.1039/c5md90061a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- M. Petaccia
- Dipartimento di Scienze Fisiche e Chimiche
- Università degli Studi dell'Aquila
- Italy
| | - M. Condello
- Dipartimento Tecnologie e Salute
- Istituto Superiore di Sanità
- 00161 Roma
- Italy
- CNR – Istituto di Metodologie Chimiche
| | - L. Giansanti
- Dipartimento di Scienze Fisiche e Chimiche
- Università degli Studi dell'Aquila
- Italy
| | - A. La Bella
- Dipartimento di Chimica
- Università degli Studi di Roma “Sapienza”
- 00185 Roma
- Italy
| | - F. Leonelli
- Dipartimento di Biologia Ambientale
- Università degli Studi di Roma “La Sapienza”
- 00185 Roma
- Italy
| | - S. Meschini
- Dipartimento Tecnologie e Salute
- Istituto Superiore di Sanità
- 00161 Roma
- Italy
| | | | - E. Pellegrini
- Dipartimento Tecnologie e Salute
- Istituto Superiore di Sanità
- 00161 Roma
- Italy
| | - F. Ceccacci
- CNR-IMC
- Sezione Meccanismi di Reazione c/o Dipartimento di Chimica
- Università degli Studi di Roma “Sapienza”
- 00185 Roma
- Italy
| | - L. Galantini
- Dipartimento di Chimica
- Università degli Studi di Roma “Sapienza”
- 00185 Roma
- Italy
| | - G. Mancini
- CNR – Istituto di Metodologie Chimiche
- 00016 Monterotondo Scalo (RM)
- Italy
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11
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Aoun B, Sharma VK, Pellegrini E, Mitra S, Johnson M, Mukhopadhyay R. Structure and dynamics of ionic micelles: MD simulation and neutron scattering study. J Phys Chem B 2015; 119:5079-86. [PMID: 25803564 DOI: 10.1021/acs.jpcb.5b00020] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Fully atomistic molecular dynamics (MD) simulations have been carried out on sodium dodecyl sulfate (SDS), an anionic micelle, and three cationic (CnTAB; n = 12, 14, 16) micelles, investigating the effects of size, the form of the headgroup, and chain length. They have been used to analyze neutron scattering data. MD simulations confirm the dynamical model of global motion of the whole micelle, segmental motion (headgroup and alkyl chain), and fast torsional motion associated with the surfactants that is used to analyze the experimental data. It is found that the solvent surrounding the headgroups results in their significant mobility, which exceeds that of the tails on the nanosecond time scale. The middle of the chain is found to be least mobile, consolidating the micellar configuration. This dynamical feature is similar for all the ionic micelles investigated and therefore independent of headgroup form and charge and chain length. Diffusion constants for global and segmental motion of the different micelles are consistent with experimentally obtained values as well as known structural features. This work provides a more realistic model of micelle dynamics and offers new insight into the strongly fluctuating surface of micelles which is important in understanding micelle dispersion and related functionality, like drug delivery.
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Affiliation(s)
- B Aoun
- †Institut Laue-Langevin, BP 156, 6, rue Jules Horowitz, 38042 Grenoble Cedex 9, France
| | - V K Sharma
- ‡Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - E Pellegrini
- †Institut Laue-Langevin, BP 156, 6, rue Jules Horowitz, 38042 Grenoble Cedex 9, France
| | - S Mitra
- ‡Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - M Johnson
- †Institut Laue-Langevin, BP 156, 6, rue Jules Horowitz, 38042 Grenoble Cedex 9, France
| | - R Mukhopadhyay
- ‡Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
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12
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Petaccia M, Condello M, Giansanti L, La Bella A, Leonelli F, Meschini S, Gradella Villalva D, Pellegrini E, Ceccacci F, Galantini L, Mancini G. Inclusion of new 5-fluorouracil amphiphilic derivatives in liposome formulation for cancer treatment. Med Chem Commun 2015. [DOI: 10.1039/c5md00077g] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Liposomes containing novel 5-fluorouracil derivatives differing in the length of their polyoxyethylenic spacer were shown active against colorectal tumor cells.
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Affiliation(s)
- M. Petaccia
- Dipartimento di Scienze Fisiche e Chimiche
- Università degli Studi dell'Aquila
- Italy
| | - M. Condello
- Dipartimento Tecnologie e Salute
- Istituto Superiore di Sanità
- 00161 Roma
- Italy
- CNR – Istituto di Metodologie Chimiche
| | - L. Giansanti
- Dipartimento di Scienze Fisiche e Chimiche
- Università degli Studi dell'Aquila
- Italy
| | - A. La Bella
- Dipartimento di Chimica
- Università degli Studi di Roma “Sapienza”
- 00185 Roma
- Italy
| | - F. Leonelli
- Dipartimento di Biologia Vegetale ed Animale
- Università degli Studi di Roma “Sapienza”
- 00185 Roma
- Italy
| | - S. Meschini
- Dipartimento Tecnologie e Salute
- Istituto Superiore di Sanità
- 00161 Roma
- Italy
| | | | - E. Pellegrini
- Dipartimento Tecnologie e Salute
- Istituto Superiore di Sanità
- 00161 Roma
- Italy
| | - F. Ceccacci
- CNR-IMC
- Sezione Meccanismi di Reazione c/o Dipartimento di Chimica
- Università degli Studi di Roma “Sapienza”
- 00185 Roma
- Italy
| | - L. Galantini
- Dipartimento di Chimica
- Università degli Studi di Roma “Sapienza”
- 00185 Roma
- Italy
| | - G. Mancini
- CNR – Istituto di Metodologie Chimiche
- 00016 Monterotondo Scalo (RM)
- Italy
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13
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Perticaroli S, Russo D, Paolantoni M, Gonzalez MA, Sassi P, Nickels JD, Ehlers G, Comez L, Pellegrini E, Fioretto D, Morresi A. Painting biological low-frequency vibrational modes from small peptides to proteins. Phys Chem Chem Phys 2015; 17:11423-31. [DOI: 10.1039/c4cp05388e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
We use experiments and simulation to investigate the validity of different model systems used to study the low-frequency vibrations of proteins.
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Affiliation(s)
- S. Perticaroli
- Joint Institute for Neutron Sciences
- Oak Ridge National Laboratory
- Oak Ridge
- USA
- Chemical and Materials Sciences Division
| | - D. Russo
- CNR-IOM
- Italy c/o Institut Laue Langevin
- France
- Institut Lumière Matière
- Université de Lyon 1
| | - M. Paolantoni
- Dipartimento di Chimica
- Biologia e Biotecnologie
- Università di Perugia
- I-06123 Perugia
- Italy
| | | | - P. Sassi
- Dipartimento di Chimica
- Biologia e Biotecnologie
- Università di Perugia
- I-06123 Perugia
- Italy
| | - J. D. Nickels
- Joint Institute for Neutron Sciences
- Oak Ridge National Laboratory
- Oak Ridge
- USA
- Department of Chemistry
| | - G. Ehlers
- Quantum Condensed Matter Division
- Oak Ridge National Laboratory
- Oak Ridge
- USA
| | - L. Comez
- IOM-CNR c/o Dipartimento di Fisica e Geologia
- Università di Perugia
- I-06123 Perugia
- Italy
- Dipartimento di Fisica e Geologia
| | | | - D. Fioretto
- Dipartimento di Fisica e Geologia
- Università di Perugia
- I-06123 Perugia
- Italy
- Centro di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN)
| | - A. Morresi
- Dipartimento di Chimica
- Biologia e Biotecnologie
- Università di Perugia
- I-06123 Perugia
- Italy
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14
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Urraro T, Piluso A, Giannini C, Fognani E, Gragnani L, Caini P, Monti M, Triboli E, Pellegrini E, Petrarca A, Ranieri J, Laffi G, Zignego A. OP0186 Etiological therapy in HCV-related mixed cryoglobulinemia syndrome: The role of IL28B genotype as predictor of response. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.1869] [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: 11/03/2022]
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15
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Ali S, Blakeley M, Søndergaard CR, Pellegrini E, Teixeira SCM, Pickersgill RW. A joint neutron/X-ray crystallographic study on the mechanism of pectate lyase. Acta Crystallogr A 2012. [DOI: 10.1107/s0108767312098236] [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: 11/11/2022] Open
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16
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Epelbaum J, Pellegrini E, Kordon C, Bluet-Pajot MT. Nouvelles données dans la régulation centrale de la pulsatilité de la sécrétion d'hormone de croissance : l'hormone elle-même donne le signal. ACTA ACUST UNITED AC 2012. [DOI: 10.4267/10608/381] [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: 11/30/2022]
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17
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Pellegrini E, Maurantonio M, Giannico IM, Simonini MS, Ganazzi D, Carulli L, D'Amico R, Baldini A, Loria P, Bertolotti M, Carulli N. Risk for cardiovascular events in an Italian population of patients with type 2 diabetes. Nutr Metab Cardiovasc Dis 2011; 21:885-892. [PMID: 20674312 DOI: 10.1016/j.numecd.2010.02.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2009] [Revised: 01/16/2010] [Accepted: 02/15/2010] [Indexed: 10/19/2022]
Abstract
BACKGROUND AND AIM This study aims to analyse the risk of cardiovascular events in a local cohort of patients with type 2 diabetes, and to evaluate the prognostic accuracy of four algorithms used to estimate cardiovascular risk: the Framingham study, United Kingdom Prospective Diabetes Study (UKPDS), Riskard study and Progetto Cuore. METHOD AND RESULTS We analysed clinical charts of the Diabetes Clinics of Modena for the period 1991-95. Patients in the age range of 35-65 with type 2 diabetes and no previous cardiovascular disease were eligible. The incidence of new cardiovascular disease was compared with estimated rates deriving from the different functions. A stratification was obtained in subgroups at different cardiovascular risk, allowing comparison between the algorithms. A total of 1532 patients were eligible; women presented a worse cardiovascular risk profile. An absolute 10-year rate of cardiovascular events of 14.9% was observed. Comparing patients with events with event-free subjects, we found significant differences in systolic blood pressure, age at visit, smoking, high-density lipoprotein (HDL)-cholesterol, duration of diabetes, glycosylated haemoglobin (HbA1c) and co-morbidities. Comparing the estimated risk rate according to the different functions, Italian algorithms were more consistent with observed data; however, Progetto Cuore and Riskard show underestimation of events when applied to females. CONCLUSIONS Estimation of cardiovascular risk is dependent on the algorithm adopted and on the baseline risk of the reference cohort. Functions designed for a specific population, including risk variables peculiar for diabetes, should be adopted to increase the performance of such functions which is clearly unsatisfactory at present.
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Affiliation(s)
- E Pellegrini
- Dipartimento di Medicina, Endocrinologia, Metabolismo e Geriatria, Università degli Studi di Modena e Reggio Emilia, Nuovo Ospedale Civile, via Giardini 1355, 41100 Modena, Italy
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18
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Calandrini V, Pellegrini E, Calligari P, Hinsen K, Kneller G. nMoldyn - Interfacing spectroscopic experiments, molecular dynamics simulations and models for time correlation functions. ACTA ACUST UNITED AC 2011. [DOI: 10.1051/sfn/201112010] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [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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19
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Parsons AJ, Ahmed I, Rudd CD, Cuello GJ, Pellegrini E, Richard D, Johnson MR. Neutron scattering and ab initio molecular dynamics study of cross-linking in biomedical phosphate glasses. J Phys Condens Matter 2010; 22:485403. [PMID: 21406745 DOI: 10.1088/0953-8984/22/48/485403] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Details of the microscopic structure of phosphate glasses destined for biomedical applications, which include sodium, magnesium and calcium cations, have been obtained from the static structure factor measured by means of neutron scattering. A complementary, molecular dynamics study has been performed on a range of phosphate glasses using density functional theory methods, which allow structural fluctuations, including bond breaking, in the liquid phase before quenching to the glass phase. Good agreement between experiment and simulation allows the molecular dynamics trajectories to be analysed in detail. In particular, attention is focused on the cross-linking of divalent cations in contrast with the structural aspects associated with monovalent cations. Magnesium cations are found equidistant and bridging between the phosphorus atoms of different phosphate chains, leading to a shorter phosphorus-phosphorus second neighbour distance (that is, a more compact packing of neighbouring phosphate chains) compared to the effect of sodium cations. Calcium cations show behaviour intermediate between those of magnesium and sodium. Molecular dynamics simulations give access to the cation mobility, which is lowest for magnesium, reflecting its structural, cross-linking role.
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Affiliation(s)
- A J Parsons
- Division of Materials, Mechanics and Structures, Faculty of Engineering, University of Nottingham, Nottingham, UK.
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20
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Mouriec K, Lareyre JJ, Tong SK, Le Page Y, Vaillant C, Pellegrini E, Pakdel F, Chung BC, Kah O, Anglade I. Early regulation of brain aromatase (cyp19a1b) by estrogen receptors during zebrafish development. Dev Dyn 2010; 238:2641-51. [PMID: 19718764 DOI: 10.1002/dvdy.22069] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Early expression of estrogen receptors (esr) and their role in regulating early expression of cyp19a1b encoding brain aromatase were examined in the brain of zebrafish. Using in toto hybridization and quantitative reverse transcriptase-polymerase chain reaction (RT-PCR), a significant increase in the expression of esr1, esr2a, and esr2b was observed between 24 and 48 hours postfertilization (hpf). In toto hybridization demonstrated that esr2a and esr2b, but not esr1, are found in the hypothalamus. Using real-time RT-PCR, an increase in cyp19a1b mRNAs occurs between 24 and 48 hpf, indicating that expression of cyp19a1b is temporally correlated with that of esr. This increase is blocked by the pure anti-estrogen ICI182,780. Furthermore, E2 treatment of cyp19a1b-GFP (green fluorescent protein) transgenic embryos results in appearance of GFP expression in the brain as early as 25 hpf. These results indicate that basal expression of cyp19a1b expression in the brain of developing zebrafish most likely relies upon expression of esr that are fully functional before 25 hpf.
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Affiliation(s)
- K Mouriec
- Neurogenesis And OEstrogens, UMR CNRS 6026, IFR 140, Université de Rennes 1, Rennes, France
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21
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Venturi G, Formisano F, Cuello GJ, Johnson MR, Pellegrini E, Bafile U, Guarini E. Structure of liquid n-hexane. J Chem Phys 2009; 131:034508. [DOI: 10.1063/1.3176413] [Citation(s) in RCA: 10] [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: 11/15/2022] Open
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22
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Jaquiéry J, Guélat J, Broquet T, Berset-Brändli L, Pellegrini E, Moresi R, Hirzel AH, Perrin N. HABITAT-QUALITY EFFECTS ON METAPOPULATION DYNAMICS IN GREATER WHITE-TOOTHED SHREWS,CROCIDURA RUSSULA. Ecology 2008; 89:2777-85. [DOI: 10.1890/07-1833.1] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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23
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Francini A, Nali C, Pellegrini E, Lorenzini G. Characterization and isolation of some genes of the shikimate pathway in sensitive and resistant Centaurea jacea plants after ozone exposure. Environ Pollut 2008; 151:272-9. [PMID: 17706847 DOI: 10.1016/j.envpol.2007.07.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2007] [Accepted: 07/08/2007] [Indexed: 05/16/2023]
Abstract
Centaurea jacea has been suggested as a potential bioindicator for ozone, but little is known about its intraspecific variation in sensitivity, especially at molecular level. The effects of ozone (200 ppb, 5 h) on sensitive and resistant lines of Centaurea have been investigated at the end of fumigation. Sensitive plants showed characteristic symptoms of injury in the form of diffuse discoloration stipples on leaves. A PCR-based approach was used to identify and isolate a partial-length cDNA coding for PAL and CHS genes. The northern analysis of PAL showed accumulation of transcript in both lines correlated with a typical increase of PAL activity (+41 and +91% in resistant and sensitive material, respectively, compared to controls). On the contrary, the transcripts of CHS, in resistant and sensitive plants, did not change after treatment. Total phenols were not affected by ozone, while anthocyanins were quickly utilised by resistant clone as antioxidant compounds.
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Affiliation(s)
- A Francini
- Dipartimento di Coltivazione e Difesa delle Specie Legnose Giovanni Scaramuzzi, University of Pisa, Via del Borghetto 80, Pisa, Italy
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24
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Strobl-Mazzulla P, Núñez A, Pellegrini E, Kah O, Somoza G. 6.P1. Identification of different population of neural progenitor in adult pejerrey fish: Origin of proliferation, migration and cell fate. Comp Biochem Physiol A Mol Integr Physiol 2007. [DOI: 10.1016/j.cbpa.2007.06.070] [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: 11/30/2022]
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25
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Pellegrini E, Maurantonio M, D'Amico R, Madeo B, Giannico I, Ganazzi D, Carulli L, Loria P, Bertolotti M, Carulli N. Mo-P1:4 Risk for cardiovascular events in a local population of diabetic patients. ATHEROSCLEROSIS SUPP 2006. [DOI: 10.1016/s1567-5688(06)80142-x] [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: 10/23/2022]
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26
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Hosmer PT, Schatz H, Aprahamian A, Arndt O, Clement RRC, Estrade A, Kratz KL, Liddick SN, Mantica PF, Mueller WF, Montes F, Morton AC, Ouellette M, Pellegrini E, Pfeiffer B, Reeder P, Santi P, Steiner M, Stolz A, Tomlin BE, Walters WB, Wöhr A. Half-life of the doubly magic r-process nucleus 78Ni. Phys Rev Lett 2005; 94:112501. [PMID: 15903849 DOI: 10.1103/physrevlett.94.112501] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2004] [Indexed: 05/02/2023]
Abstract
Nuclei with magic numbers serve as important benchmarks in nuclear theory. In addition, neutron-rich nuclei play an important role in the astrophysical rapid neutron-capture process (r process). 78Ni is the only doubly magic nucleus that is also an important waiting point in the r process, and serves as a major bottleneck in the synthesis of heavier elements. The half-life of 78Ni has been experimentally deduced for the first time at the Coupled Cyclotron Facility of the National Superconducting Cyclotron Laboratory at Michigan State University, and was found to be 110(+100)(-60) ms. In the same experiment, a first half-life was deduced for 77Ni of 128(+27)(-33) ms, and more precise half-lives were deduced for 75Ni and 76Ni of 344(+20)(-24) ms and 238(+15)(-18) ms, respectively.
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Affiliation(s)
- P T Hosmer
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
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27
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Rucco V, Lorenzini L, Pellegrini E. Clawed toes deformity due to spasticity of the extensor digitorum muscle. A case report. Eura Medicophys 2004; 40:269-72. [PMID: 16175149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Spasticity is a characteristic and early component of the lesions of the pyramidal tract of demyelinising diseases such as multiple sclerosis, and is included in the chief neurological scales to evaluate this disease. We report the case of a woman with a clawed toes deformity caused by spasticity of the extensor digitorum (longus and brevis) muscles.
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Affiliation(s)
- V Rucco
- Operative Rehabilitation Unit, Spilimbergo Hospital, Spilimbergo (PN), Italy.
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28
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Mastroeni A, Bellotti C, Galletti F, Lai E, Pellegrini E, Falloon I. Treatment quality as a crucial issue in the process of closing Como Mental Hospital. Seishin Shinkeigaku Zasshi 2003; 105:1168-74. [PMID: 14639940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
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29
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Pruneri C, Damiano S, Gatti M, Pellegrini E, Furlani F. Somatoform disorder or affective disorder? Questions about a correct diagnosis. Eur Psychiatry 2002. [DOI: 10.1016/s0924-9338(02)80886-0] [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: 10/27/2022] Open
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30
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Borezée E, Pellegrini E, Beretti JL, Berche P. SvpA, a novel surface virulence-associated protein required for intracellular survival of Listeria monocytogenes. Microbiology (Reading) 2001; 147:2913-23. [PMID: 11700342 DOI: 10.1099/00221287-147-11-2913] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A previously unknown protein, designated SvpA (surface virulence-associated protein) and implicated in the virulence of the intracellular pathogen Listeria monocytogenes, was identified. This 64 kDa protein, encoded by svpA, is both secreted in culture supernatants and surface-exposed, as shown by immunogold labelling of whole bacteria with an anti-SvpA antibody. Analysis of the peptide sequence revealed that SvpA contains a leader peptide, a predicted C-terminal transmembrane region and a positively charged tail resembling that of the surface protein ActA, suggesting that SvpA might partially reassociate with the bacterial surface by its C-terminal membrane anchor. An allelic mutant was constructed by disrupting svpA in the wild-type strain LO28. The virulence of this mutant was strongly attenuated in the mouse, with a 2 log decrease in the LD50 and restricted bacterial growth in organs as compared to the wild-type strain. This reduced virulence was not related either to a loss of adherence or to a lower expression of known virulence factors, which remained unaffected in the svpA mutant. It was caused by a restriction of intracellular growth of mutant bacteria. By following the intracellular behaviour of bacteria within bone-marrow-derived macrophages by confocal and electron microscopy studies, it was found that most svpA mutant bacteria remained confined within phagosomes, in contrast to wild-type bacteria which rapidly escaped to the cytoplasm. The regulation of svpA was independent of PrfA, the transcriptional activator of virulence genes in L. monocytogenes. In fact, SvpA was down-regulated by MecA, ClpC and ClpP, which are highly homologous to proteins of Bacillus subtilis forming a regulatory complex controlling the competence state of this saprophyte. The results indicate that: (i) SvpA is a novel factor involved in the virulence of L. monocytogenes, promoting bacterial escape from phagosomes of macrophages; (ii) SvpA is, at least partially, associated with the surface of bacteria; and (iii) SvpA is PrfA-independent and controlled by a MecA-dependent regulatory network.
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Affiliation(s)
- E Borezée
- Laboratoire de Microbiologie, Institut National de la Santé et de la Recherche Médicale U411, Faculté de Médecine Necker-Enfants Malades, 156 rue de Vaugirard, 75730 Paris Cedex 15, France
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31
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Poyart C, Pellegrini E, Gaillot O, Boumaila C, Baptista M, Trieu-Cuot P. Contribution of Mn-cofactored superoxide dismutase (SodA) to the virulence of Streptococcus agalactiae. Infect Immun 2001; 69:5098-106. [PMID: 11447191 PMCID: PMC98605 DOI: 10.1128/iai.69.8.5098-5106.2001] [Citation(s) in RCA: 118] [Impact Index Per Article: 5.1] [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: 11/20/2022] Open
Abstract
Superoxide dismutases convert superoxide anions to molecular oxygen and hydrogen peroxide, which, in turn, is metabolized by catalases and/or peroxidases. These enzymes constitute one of the major defense mechanisms of cells against oxidative stress and hence play a role in the pathogenesis of certain bacteria. We previously demonstrated that group B streptococci (GBS) possess a single Mn-cofactored superoxide dismutase (SodA). To analyze the role of this enzyme in the pathogenicity of GBS, we constructed a sodA-disrupted mutant of Streptococcus agalactiae NEM316 by allelic exchange. This mutant was subsequently cis complemented by integration into the chromosome of pAT113/Sp harboring the wild-type sodA gene. The SOD specific activity detected by gel analysis in cell extracts confirmed that active SODs were present in the parental and complemented strains but absent in the sodA mutant. The growth rates of these strains in standing cultures were comparable, but the sodA mutant was extremely susceptible to the oxidative stress generated by addition of paraquat or hydrogen peroxide to the culture medium and exhibited a higher mutation frequency in the presence of rifampin. In mouse bone marrow-derived macrophages, the sodA mutant showed an increased susceptibility to bacterial killing by macrophages. In a mouse infection model, after intravenous injection the survival of the sodA mutant in the blood and the brain was markedly reduced in comparison to that of the parental and complemented strains whereas only minor effects on survival in the liver and the spleen were observed. These results suggest that SodA plays a role in GBS pathogenesis.
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Affiliation(s)
- C Poyart
- INSERM U-411, Faculté de Médecine Necker-Enfants Malades, 75730 Paris Cedex 15, France.
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Borezee E, Pellegrini E, Berche P. OppA of Listeria monocytogenes, an oligopeptide-binding protein required for bacterial growth at low temperature and involved in intracellular survival. Infect Immun 2000; 68:7069-77. [PMID: 11083832 PMCID: PMC97817 DOI: 10.1128/iai.68.12.7069-7077.2000] [Citation(s) in RCA: 166] [Impact Index Per Article: 6.9] [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: 11/20/2022] Open
Abstract
We identified a new oligopeptide permease operon in the pathogen Listeria monocytogenes. This opp operon consists of five genes (oppA, oppB, oppC, oppD, and oppF) and displays the same genetic organization as those of several bacterial species. The first gene of this operon, oppA, encodes a 62-kDa protein sharing 33% identity with OppA of Bacillus subtilis and is expressed predominantly during exponential growth. The function of oppA was studied by constructing an oppA deletion mutant. The phenotype analysis of this mutant revealed that OppA mediates the transport of oligopeptides and is required for bacterial growth at low temperature. The wild-type phenotype was restored by complementing the mutant with oppA. We also found that OppA is involved in intracellular survival in macrophages and in bacterial growth in organs of mice infected with L. monocytogenes, although the level of virulence was not altered in the mutant. These results show the major role of OppA in the uptake of oligopeptides and the pleiotropic effects of this oligopeptide-binding protein on the behavior of this pathogen in the environment and in its host.
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Affiliation(s)
- E Borezee
- Inserm U411, Faculté de Médecine Necker, 75730 Paris Cedex 15, France
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33
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Pruneril C, Pellegrini E, Damiano S, Furlani F. FC14.05 Anxiety and personality correlates in patient with somatoform disorder. Eur Psychiatry 2000. [DOI: 10.1016/s0924-9338(00)94410-9] [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: 11/25/2022] Open
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34
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Fortinea N, Trieu-Cuot P, Gaillot O, Pellegrini E, Berche P, Gaillard JL. Optimization of green fluorescent protein expression vectors for in vitro and in vivo detection of Listeria monocytogenes. Res Microbiol 2000; 151:353-60. [PMID: 10919515 DOI: 10.1016/s0923-2508(00)00158-3] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.8] [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: 11/29/2022]
Abstract
The green fluorescent protein (GFP) of the jellyfish Aequorea victoria is a useful reporter molecule for monitoring in vivo gene expression in eukaryotic and prokaryotic cells. We constructed a series of GFP vectors for in situ detection of the intracellular pathogen Listeria monocytogenes. The gfp-mutl gene, which encodes a red-shifted GFP, was transcriptionally fused to a strong L. monocytogenes promoter and inserted into various Escherichia coli-Listeria shuttle vectors: i) the integrative monocopy plasmid pAT113; ii) the low copy number plasmid pTCV-Exl; iii) the high copy number plasmid pAT18. Listeria cells harboring pNF6 and pNF7, constructed from pAT113 and pTCV-Exl, respectively, gave low fluorescence intensities, and were optically detected in cultured macrophages, but not in tissue sections. The fluorescence of Listeria with the pAT18 derivative pNF8 was about 40 times greater than that with pNF6 and 15 times greater than that with pNF7. Listeria cells harboring pNF8 were readily detected in both cultured macrophages and tissue sections. Constructed GFP vectors did not affect the virulence of L. monocytogenes in a murine model of infection.
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Affiliation(s)
- N Fortinea
- Laboratoire de microbiologie, Institut national de la santé et de la recherche médicale U 411, Faculté de médecine Necker-Enfants Malades, Paris, France.
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35
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Lanneau C, Bluet-Pajot MT, Zizzari P, Csaba Z, Dournaud P, Helboe L, Hoyer D, Pellegrini E, Tannenbaum GS, Epelbaum J, Gardette R. Involvement of the Sst1 somatostatin receptor subtype in the intrahypothalamic neuronal network regulating growth hormone secretion: an in vitro and in vivo antisense study. Endocrinology 2000; 141:967-79. [PMID: 10698172 DOI: 10.1210/endo.141.3.7349] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Five somatostatin (SRIH) receptors (sst1-5) have been cloned. Recent anatomical evidence suggests that sst1 and sst2 may be involved in the central regulation of GH secretion. Given the lack of specific receptor antagonists, we used selective antisense oligodeoxynucleotides (ODNs) to test the hypothesis that one or both of these subtypes are involved in the intrahypothalamic network regulating pulsatile GH secretion. In mouse neuronal hypothalamic cultures the proportion of GHRH neurons coexpressing sst1 or sst2 messenger RNAs (mRNAs) was identical. In contrast, sst1 mRNAs were more often present than sst2 in SRIH-expressing neurons. Firstly, sst1 antisense ODN in vitro treatment abolished sst1, but not sst2, receptor modulation of glutamate sensitivity and decreased sst1, but not sst2, mRNAs. The reverse was true after treatment with sst2 antisense. Sense ODNs did not alter the effects of SRIH agonists. In a second series of experiments, nonanaesthetized adult male rats were infused for 120 h intracerebroventricularly with ODNs. Only the sst1 antisense ODN diminished the amplitude of ultradian GH pulses without modifying their frequency. In parallel, sst1 antisense ODN strongly diminished sst1 immunoreactivity in the anterior periventricular nucleus and median eminence, as well as sstl periventricular nucleus mRNA levels. The effectiveness of the sst2 antisense ODN was attested by the inhibition of hypothalamic binding of [125I]Tyr0-D-Trp8-SRIH. Scrambled ODNs had no effect on GH secretion or on sst mRNAs or SRIH binding levels. These results favor a preferential involvement of sst1 receptors in the intrahypothalamic regulation of GH secretion by SRIH.
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Affiliation(s)
- C Lanneau
- U-159, INSERM Centre Paul Broca, Paris, France
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36
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Gaillot O, Pellegrini E, Bregenholt S, Nair S, Berche P. The ClpP serine protease is essential for the intracellular parasitism and virulence of Listeria monocytogenes. Mol Microbiol 2000; 35:1286-94. [PMID: 10760131 DOI: 10.1046/j.1365-2958.2000.01773.x] [Citation(s) in RCA: 214] [Impact Index Per Article: 8.9] [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: 12/12/2022]
Abstract
We identified the stress-induced ClpP of Listeria monocytogenes and demonstrated its crucial role in intracellular survival of this pathogen. ClpP is a 21.6 kDa protein belonging to a family of proteases highly conserved in prokaryotes and eukaryotes. A clpP-deleted mutant enabled us to demonstrate that ClpP is involved in proteolysis and is required for growth under stress conditions. Intramacrophage survival of this mutant was strongly restricted, thus resulting in loss of virulence for the mouse. The activity of listeriolysin O, a major virulence factor implicated in bacterial escape from phagosomes of macrophages, was much reduced in the clpP mutant under stress conditions. Direct evidence for the role of ClpP in the intracellular parasitism was obtained by showing that virulence and haemolytic activity were fully restored by complementation of the mutant. These results suggest that ClpP is involved in the rapid adaptive response of intracellular pathogens during the infectious process.
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Affiliation(s)
- O Gaillot
- INSERM U411, Centre Hospitalo-Universitaire Necker-Enfants Malades, 156, rue de Vaugirard, 75730 PARIS Cedex 15, France
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37
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Pellegrini E, Carmignac DF, Bluet-Pajot MT, Mounier F, Bennett P, Epelbaum J, Robinson IC. Intrahypothalamic growth hormone feedback: from dwarfism to acromegaly in the rat. Endocrinology 1997; 138:4543-51. [PMID: 9348176 DOI: 10.1210/endo.138.11.5503] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Two different dwarf rat models with primary (dw/dw, DW) or secondary (transgenic growth retarded, WF/Tgr) GH deficiency and contrasting hypothalamic GH-releasing hormone (GHRH) and somatostatin (SRIH) expression were implanted sc with GC cells. These form encapsulated rat GH-secreting tumors that maintain high plasma rat GH levels for several weeks. In both strains, GC cell tumors stimulated growth and raised GHBP levels, without affecting pituitary GH content. In DW rats, GC cell implants increased SRIH expression in the periventricular nucleus (PeV), but not in the arcuate nucleus (ARC), whereas their high GHRH expression in ARC was decreased by GC cells. In contrast, GC cell implants in WF/Tgr rats had little effect on the already high SRIH expression in PeV or low GHRH expression in ARC, although they reduced SRIH expression in ARC. GC cell implants also reduced GH receptor expression in both ARC and PeV in the WF/Tgr dwarves. Thus, chronic GH overexposure stimulates rapid growth in both dwarf strains, but has differential hypothalamic effects in these models. This experimental approach now makes it possible to study the effects of pathophysiological concentrations of GH ranging from dwarfism to acromegaly in the same animal model.
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Affiliation(s)
- E Pellegrini
- U-159, Institut National de la Santé et de la Recherche Médicale, Paris, France
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38
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Mounier F, Pellegrini E, Kordon C, Epelbaum J, Bluet-Pajot MT. Continuous intracerebroventricular administration of a corticotropin releasing hormone antagonist amplifies spontaneous growth hormone pulses in the rat. J Endocrinol 1997; 152:431-6. [PMID: 9071964 DOI: 10.1677/joe.0.1520431] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Involvement of endogenous corticotropin releasing hormone (CRH) in the regulation of spontaneous growth hormone (GH) secretion was investigated. A CRH antagonist, alpha helical CRH 9-41, was intracerebroventricularly infused for 36 h at a rate of 1 microgram/0.5 microliter/h to freely moving, cannulated adult male rats. Serial blood samples were drawn every 20 min for the last 8 hours of alpha helical CRH 9-41 infusion. The treatment induced a marked increase in GH peak amplitude without affecting either trough levels or numbers of peaks. In parallel, levels of growth hormone releasing hormone (GHRH) mRNA in the arcuate nucleus, but not of somatotropin release inhibiting hormone (SRIH) mRNA in the periventricular and arcuate nuclei, were increased. These data suggest that, in addition to its action in the stress-induced inhibition of GH secretion through regulation of periventricular SRIH neurons, CRH can also act as a modulator of endogenous GH secretion through regulation of arcuate GHRH neurons. Whether the modulatory effects of CRH on GHRH neurons are direct or indirect remains to be established.
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Affiliation(s)
- F Mounier
- Unité de Recherches de Dynamique des Systèmes Neuroendocriniens, U 159 INSERM, Paris, France
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39
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Pellegrini E, Bluet-Pajot MT, Mounier F, Bennett P, Kordon C, Epelbaum J. Central administration of a growth hormone (GH) receptor mRNA antisense increases GH pulsatility and decreases hypothalamic somatostatin expression in rats. J Neurosci 1996; 16:8140-8. [PMID: 8987839 PMCID: PMC6579226] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
To test the hypothesis of the involvement of centrally expressed rat growth hormone receptors (rGH-R) in the ultradian rhythmicity of pituitary GH secretion, adult male rats were submitted to a 60 hr intracerebroventricular infusion of an antisense (AS) oligodeoxynucleotide (ODN) complementary to the sequence of rGH-R mRNA. Eight hour (10 A.M.-6 P.M.) GH secretory profiles, obtained from freely moving male rats infused with 2.0 nmol/hr of rGH-R AS, revealed a marked increase in GH peak amplitude (150 +/- 12 vs 101 +/- 10 ng/ml), trough levels (16.2 +/- 3.0 vs 5.4 +/- 1.4 ng/ml), and number of peaks (2.9 +/- 0.3 vs 1.8 +/- 0.2). No change was observed in rats treated with an ODN complementary to the prolactin receptor mRNA sequence (2.0 nmol/hr). Infusion of increasing ODN concentrations resulted in a dose-dependent stimulation of GH release. In parallel, somatogenic binding sites in the choroid plexus were decreased by 40%, and levels of rGH-R mRNA were increased in the periventricular nucleus (PeV) but unchanged in the arcuate nucleus (ARC). Levels of somatostatin mRNA, in the PeV but not in the ARC, were lowered by the treatment. Levels of GH-releasing hormone mRNA in the ARC were not affected. These data suggest that GH negative feedback results from a direct effect on central GH receptors and a subsequent activation of hypophysiotropic somatostatin neurons located in the anterior periventricular hypothalamus.
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Affiliation(s)
- E Pellegrini
- U159 Institut National de la Santé et de la Recherche Médicale, 75014 Paris, France
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40
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Rouquette C, Ripio MT, Pellegrini E, Bolla JM, Tascon RI, Vázquez-Boland JA, Berche P. Identification of a ClpC ATPase required for stress tolerance and in vivo survival of Listeria monocytogenes. Mol Microbiol 1996; 21:977-87. [PMID: 8885268 DOI: 10.1046/j.1365-2958.1996.641432.x] [Citation(s) in RCA: 102] [Impact Index Per Article: 3.6] [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: 02/02/2023]
Abstract
We identified a new chromosomal locus involved in the virulence of the facultative intracellular pathogen Listeria monocytogenes. This locus displays the same genetic organization as that of the clpC/mecB locus of Bacillus subtilis. It contains a thermoregulated operon of four genes, whose transcription is upregulated at 42 degrees C. The last gene of this operon is clpC, which encodes a protein of 826 amino acid residues, identified as a ClpC ATPase, sharing a strong peptide sequence identity (78%) with ClpC/MecB of B. subtilis. Tn917 insertions inactivating the entire operon, or only clpC, gave mutants highly susceptible to stress, including iron limitation, elevated temperatures and high osmolarity. The virulence of these mutants was severely impaired in the mouse. A clpC insertional mutant was also restricted in its capacity to grow in bone-marrow-derived macrophages. These results demonstrate that the ClpC ATPase of L. monocytogenes is a general stress protein involved in intracellular growth and in vivo survival of this pathogen in host tissues.
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Affiliation(s)
- C Rouquette
- INSERM U 411, Faculté de Médecine Necker, Paris, France
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41
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Balogun JA, Helgemoe S, Pellegrini E, Hoeberlein T. Test-retest reliability of a psychometric instrument designed to measure physical therapy students' burnout. Percept Mot Skills 1995. [PMID: 8570376 DOI: 10.2466/pms.1995.81.2.667] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The purpose of this study was to assess the reproducibility of scores on an instrument designed to measure physical therapy students' burnout. Physical therapy students (28 juniors and 28 seniors) completed an adapted educator's version of the Maslach Burnout Inventory on two occasions within a week interval. At each testing session, a separate score was obtained for each student for the three (emotional exhaustion, depersonalization, and personal accomplishment) subscales of the instrument. These scores, analyzed with a two-factor repeated-measures analysis of variance, indicated a significant difference in the personal accomplishment score between the junior and senior students during the two time frames. Scheffé post hoc tests showed that the junior students reported higher personal accomplishment affect at both testing sessions than the senior students. Both junior and senior students reported higher personal accomplishment at retest than at baseline testing. A test-retest reliability coefficient of .850 was obtained for the Depersonalization subscale; .907 and .715 were obtained for the Emotional Exhaustion and Personal Accomplishment subscales, respectively.
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Affiliation(s)
- J A Balogun
- State University of New York Health Science Center at Brooklyn, Program in Physical Therapy 11203, USA
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42
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Halperin DL, Koren G, Attias D, Pellegrini E, Greenberg ML, Wyss M. Topical skin anesthesia for venous, subcutaneous drug reservoir and lumbar punctures in children. Pediatrics 1989; 84:281-4. [PMID: 2748256] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
A new topical anesthetic ointment (EMLA, "eutectic mixture of prilocaine and lidocaine was studied in a double-blind, placebo-controlled trial to evaluate its efficiency in alleviating pain associated with venous, subcutaneous drug reservoir and lumbar punctures in children. Pain intensity was scored by the children themselves, using a visual analogue scale in which 0 corresponded to absence of sensation and 10 to the worst imaginable painful sensation. Venipunctures were performed on 18 children (6.1 to 12.2 years of age) equally divided in the study and control groups; EMLA cream was associated with lesser pain scores than those with placebo (means +/- SD: 2.8 +/- 2.4 vs 6.8 +/- 2.1, P less than .01). A crossover trial was used in the studies of subcutaneous drug reservoir and lumbar punctures, eight children (6.1 to 15.1 years of age) were tested for subcutaneous drug reservoir punctures; pain induced by this procedure was rated at 3.9 +/- 2.2 with placebo compared with 1.2 +/- 1.8 with EMLA cream (P less than .04). In lumbar punctures (14 children studied, 5.5 to 15.3 years of age), EMLA cream was again associated with less pain (1.9 +/- 1.9) than was placebo (5.6 +/- 3.0, P less than .01). It was concluded that the use of EMLA cream substantially reduces pain caused by venous, subcutaneous drug reservoir, and lumbar punctures in children and may therefore be offered to young patients, particularly those repeatedly submitted to such procedures.
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Affiliation(s)
- D L Halperin
- Department of Pediatrics, Hospital for Sick Children, Toronto, Canada
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Feldman Y, Koren G, Mattice K, Shear H, Pellegrini E, MacLeod SM. Determinants of recall and recall bias in studying drug and chemical exposure in pregnancy. Teratology 1989; 40:37-45. [PMID: 2763209 DOI: 10.1002/tera.1420400106] [Citation(s) in RCA: 77] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Case-control studies on effects of drugs in pregnancy rely heavily on maternal recall. At the Motherisk Program in Toronto we counsel women during early pregnancy on the risk of drug and chemical exposure; subsequently, we follow up the outcome of pregnancy after birth. This cohort has given us an opportunity to assess the magnitude of recall of early pregnancy exposure and determinants likely to affect it in 145 consecutive cases. The mean recall of exposure identity was 62%, while accurate recall of timing of exposure was 37% and of dosage 24%. Exposures that prompted the clinic visit, chronic therapeutic exposures, environmental agents, and known teratogens were recalled significantly better than were other exposures. Accurate report of smoking was significantly higher than of alcohol use (79.4% vs. 59%, respectively, P = .0002). The number of agents consumed by the pregnant woman negatively correlated with her recall; mean recall of 1 agent was 85% vs. only 40% recall of 4 agents. Women greater than or equal to 30 years of age recalled significantly worse (mean +/- SEM, 52 +/- 4%) than women younger than 30 (70 +/- 4%), P = .002) despite a similar mean number of exposures. No difference in mean recall was found between women having normal (n = 112) or adverse pregnancy outcome (n = 33). There was a recall bias in reporting alcohol consumption; postnatally, women with adverse outcome tended to report significantly less than the amount initially reported by them.
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Affiliation(s)
- Y Feldman
- Department of Pediatrics, Hospital for Sick Children, Toronto
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44
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Graham K, Dimitrakoudis D, Pellegrini E, Koren G. Pregnancy outcome following first trimester exposure to cocaine in social users in Toronto, Canada. Vet Hum Toxicol 1989; 31:143-8. [PMID: 2929123] [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] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Studies of drug-dependent women reveal high rates of adverse fetal effects of cocaine. However, no data are available on the effect of the chemical in social users who discontinue cocaine upon realizing they are pregnant. We report the results of the first phase of a prospective study examining the outcome of pregnancy in women seeking counseling from the Motherisk Program in Toronto. Of 25 women seen in our clinic for 1st trimester cocaine exposure, 92% reported use of less than 10 g of cocaine and 36% reported marijuana use. Other illicit drug use was rare; cigarette and alcohol use was common. The study group did not experience adverse pregnancy outcome above the rate expected in the general population. There were 23 single births 1 pair of twins, and 1 spontaneous abortion. Birth weight and gestation were within normal limits. Only 1 child had a major malformation, syndactyly. Infant development was within normal limits, as measured by developmental milestones. All children are scheduled for assessment using the Bayley Scales of Infant Development. The results of the BSID will be compared to results from a cannabis-exposed control group and a no-drug control group.
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Affiliation(s)
- K Graham
- Division of Clinical Pharmacology and Toxicology, Research Institute, Toronto, Ontario, Canada
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45
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Koren G, Bologa-Campeanu M, Pellegrini E, Rieder M, McGuigan M. Information and consultation for drug, chemical and radiation exposure in pregnancy: what bothers women most commonly? Vet Hum Toxicol 1987; 29:456-7. [PMID: 3424655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- G Koren
- Department of Pediatrics, Hospital for Sick Children, Ontario, Canada
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46
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Verotti A, Chiarelli F, Violante N, Pellegrini E, Palka G. [49 XXXXY syndrome. Description of 2 clinical cases]. Pediatr Med Chir 1986; 8:575-8. [PMID: 3575135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Two children with the 49, XXXXY syndrome were described. The main symptoms were the cranio-facial abnormalities (for exp. upward slant to palpebral fissures), hypogonadism with a small penis, skeletal abnormalities (especially radioulnar synostosis) and severe mental deficiency. The diagnosis, suggested by the clinical picture, was confirmed by the karyotypic analysis.
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