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Bergougnoux A, Gaspari L, Soleirol M, Servant N, Soskin S, Rossignol S, Wagner-Mahler K, Bertherat J, Sultan C, Kalfa N, Paris F. Virilization at puberty in adolescent girls may reveal a 46,XY disorder of sexual development. Endocr Connect 2023; 12:e230267. [PMID: 37855374 PMCID: PMC10692688 DOI: 10.1530/ec-23-0267] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 10/10/2023] [Indexed: 10/20/2023]
Abstract
Although hyperandrogenism is a frequent cause of consultation in adolescent girls, more severe forms with virilization must lead to suspicion of an adrenal or ovarian tumor. However, they may also reveal a 46,XY disorder of sexual development (DSD). Here, we describe four adolescent girls referred for pubertal virilization and in whom we diagnosed a 46,XY DSD. We performed gene mutation screening by Sanger sequencing (all patients) and by next-generation sequencing (NGS) in patient #4. We identified new heterozygous NR5A1 gene variants in patients #1 and #2 and a homozygous SRD5A2 gene deletion in patient #3. Patient #4 received a diagnosis of complete androgen insensitivity in childhood; however, due the unusual pubertal virilization, we completed the gene analysis by NGS that revealed two heterozygous HSD17B3 variants. This work underlines the importance of considering the hypothesis of 46,XY DSD in adolescent girls with unexplained virilization at puberty.
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Affiliation(s)
- A Bergougnoux
- Service de Génétique Moléculaire et de Cytogénétique, Centre Hospitalier Universitaire de Montpellier, Université de Montpellier, Montpellier, France
| | - L Gaspari
- Département d'Endocrinologie et de Gynécologie Pédiatrique, Hôpital Arnaud de Villeneuve, Université de Montpellier, Montpellier, France
- INSERM Unité 1203 (DEFE), Université de Montpellier, Montpellier, France
| | - M Soleirol
- Département de Pediatrie, CHU Nîmes, France, Université de Montpellier Faculté de Médecine Montpellier-Nîmes, Montpellier, France
| | - N Servant
- Service de Génétique Moléculaire et de Cytogénétique, Centre Hospitalier Universitaire de Montpellier, Université de Montpellier, Montpellier, France
| | - S Soskin
- Département de Pédiatrie, Centre Hospitalier Universitaire Hautepierre de Strasbourg, Strasbourg, France
| | - S Rossignol
- Département de Pédiatrie, Centre Hospitalier Universitaire Hautepierre de Strasbourg, Strasbourg, France
| | - K Wagner-Mahler
- Département de Pédiatrie, CHU Nice, Hôpitaux Pédiatriques de Nice CHU-Lenval, Nice, France
| | - J Bertherat
- Department of Endocrinology, French Reference Center for Rare Adrenal Disorders, Hôpital Cochin, Université Paris Cité, Institut Cochin, Assitance Publique-Hôpitaux de Paris, Paris, France
| | - C Sultan
- Département d'Endocrinologie et de Gynécologie Pédiatrique, Hôpital Arnaud de Villeneuve, Université de Montpellier, Montpellier, France
| | - N Kalfa
- Department of Pediatric Urological Surgery, French Reference Center for abnormalities of Genital Development (DevGen), CHU Lapeyronie, Montpellier University, Montpellier, France
| | - F Paris
- Service de Génétique Moléculaire et de Cytogénétique, Centre Hospitalier Universitaire de Montpellier, Université de Montpellier, Montpellier, France
- Département d'Endocrinologie et de Gynécologie Pédiatrique, Hôpital Arnaud de Villeneuve, Université de Montpellier, Montpellier, France
- INSERM Unité 1203 (DEFE), Université de Montpellier, Montpellier, France
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Bergougnoux A, Faivre M, Servant N, Sultan C, Gaspari L, Kalfa N, Paris F. Rectification d’un diagnostic initial d’insensibilité complète aux androgènes : complémentarité de l’examen clinique et de l’analyse génétique. Annales d'Endocrinologie 2023. [DOI: 10.1016/j.ando.2022.12.219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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Gaspari L, Paris F, Soyer-Gobillard MO, Kalfa N, Sultan C, Hamamah S. [Environmental endocrine disruptors and fertility]. ACTA ACUST UNITED AC 2021; 50:402-408. [PMID: 34560302 DOI: 10.1016/j.gofs.2021.09.009] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Indexed: 11/18/2022]
Abstract
Endocrine disruptor chemicals (EDCs) are ubiquitous contaminants in the environment, wildlife, and humans. During the last 20 years, several epidemiological, clinical and experimental studies have demonstrated the role of EDCs on the reduction of male and female fertility. The concept of foetal origins of adult disease is particularly topical in the field of reproduction. Moreover, exposure to EDCs during pregnancy has been shown to influence epigenetic programming of endocrine signalling and other important physiological pathways, and provided the basis for multi- and transgenerational transmission of adult diseases. However, the large panel of EDCs simultaneously present in the air, sol and water makes the quantification of human exposition still a challenge. Gas chromatography coupled with mass spectrometry, the measurement of total plasmatic hormonal bioactivity on stably transfected cell lines as well as the EDC analysis in hair samples are useful methods of evaluation. More recently, microRNAs analysis offers a new perspective in the comprehension of the mechanisms behind the modulation of cellular response to foetal or post-natal exposure to EDCs. They will help researchers and clinicians in identifying EDCs exposition markers and new therapeutic approaches in the future.
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Affiliation(s)
- L Gaspari
- CHU Montpellier, univ Montpellier, unité d'endocrinologie-gynécologie pédiatrique, service de pédiatrie, Montpellier, France; CHU Montpellier, univ Montpellier, centre de référence maladies rares du développement génital, constitutif Sud, hôpital Lapeyronie, Montpellier, France; Univ Montpellier, Inserm 1203, développement embryonnaire fertilité environnement, Montpellier, France
| | - F Paris
- CHU Montpellier, univ Montpellier, unité d'endocrinologie-gynécologie pédiatrique, service de pédiatrie, Montpellier, France; CHU Montpellier, univ Montpellier, centre de référence maladies rares du développement génital, constitutif Sud, hôpital Lapeyronie, Montpellier, France; Univ Montpellier, Inserm 1203, développement embryonnaire fertilité environnement, Montpellier, France
| | - M-O Soyer-Gobillard
- Univ Sorbonne, CNRS, Paris, France; Association Hhorages-France, Asnières-sur-Oise, France
| | - N Kalfa
- CHU Montpellier, univ Montpellier, centre de référence maladies rares du développement génital, constitutif Sud, hôpital Lapeyronie, Montpellier, France; CHU Montpellier, univ Montpellier, département de chirurgie viscérale et urologique pédiatrique, hôpital Lapeyronie, Montpellier, France; Univ Montpellier, Institut Debrest de santé publique IDESP, UMR Inserm, Montpellier, France
| | - C Sultan
- CHU Montpellier, univ Montpellier, unité d'endocrinologie-gynécologie pédiatrique, service de pédiatrie, Montpellier, France
| | - S Hamamah
- Univ Montpellier, Inserm 1203, développement embryonnaire fertilité environnement, Montpellier, France; CHU Montpellier, univ Montpellier, département de biologie de la reproduction, biologie de la reproduction/DPI et CECOS, hôpital Arnaud-de-Villeneuve, 34295 Montpellier, France.
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Gaspari L, Paris F, Soyer-Gobillard MO, Hamamah S, Kalfa N, Sultan C. "Idiopathic" partial androgen insensitivity syndrome in 11 grandsons of women treated by diethylstilbestrol during gestation: a multi-generational impact of endocrine disruptor contamination? J Endocrinol Invest 2021; 44:379-381. [PMID: 32488725 DOI: 10.1007/s40618-020-01310-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 05/26/2020] [Indexed: 12/18/2022]
Affiliation(s)
- L Gaspari
- Unité d'Endocrinologie Pédiatrique, Département de Pédiatrie, Hôpital A. de Villeneuve, CHU Montpellier et Université Montpellier, Montpellier, France.
| | - F Paris
- Unité d'Endocrinologie Pédiatrique, Département de Pédiatrie, Hôpital A. de Villeneuve, CHU Montpellier et Université Montpellier, Montpellier, France
| | - M-O Soyer-Gobillard
- Association Hhorages-France, CRNS, Sorbonne Université, F-Asnières-sur-Oise, France
| | - S Hamamah
- Département de Biologie de La Reproduction et DPI (ART/PGD), Hôpital A. de Villeneuve, CHU Montpellier et Université Montpellier, INSERM U 1203, Montpellier, France
| | - N Kalfa
- Département de Chirurgie et Urologie Pédiatrique et Centre de Référence Maladies Rares du Développement Génital, Constitutif Sud, Hôpital Lapeyronie, CHU Montpellier et Université Montpellier, Montpellier, France
| | - C Sultan
- Unité d'Endocrinologie Pédiatrique, Département de Pédiatrie, Hôpital A. de Villeneuve, CHU Montpellier et Université Montpellier, Montpellier, France
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Paris F. SP-0246: How does radiotherapy change the tumor ecosystem? Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00270-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: 10/22/2022]
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Daussac A, Barat P, Servant N, Yacoub M, Missonier S, Lavran F, Gaspari L, Sultan C, Paris F. Testotoxicosis without Testicular Mass: Revealed by Peripheral Precocious Puberty and Confirmed by Somatic LHCGR Gene Mutation. Endocr Res 2020; 45:32-40. [PMID: 31394950 DOI: 10.1080/07435800.2019.1645163] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Purpose: Testotoxicosis is an autosomal dominant form of limited gonadotropin-independent precocious puberty in boys. It is caused by a heterozygous constitutively activating mutation of the LHCGR gene encoding the luteinizing/hormone receptor (LHR). Some twenty mutations of the LHCGR gene have been reported. Most of them are constitutive mutations isolated from blood leukocyte DNA, although others are somatic, found only in testicular tumoural tissue. In all the previously reported cases of these somatic mutations, the tumour, whether a nodular Leydig cell adenoma or hyperplasia, was easily visible on testicular ultrasonography. The aim of this study was to describe an unusual presentation of a patient with the clinical and hormonal characteristics of testotoxicosis but no well-circumscribed lesion at testicular ultrasonography.Materials and Methods: Molecular analysis of the LHCGR gene was performed by direct sequencing of DNA extracted from peripheral leucocytes and testicular biopsy.Results: Molecular analysis didn't find any LHR mutation in blood, whereas it revealed for the first time a somatic D578H mutation in testicular tissue despite no evidence of a nodular aspect at testis ultrasonography.Conclusions: This observation underlines the need to look for a somatic LHCGR gene mutation from the testicular biopsies of all boys with testotoxicosis with no constitutive LHCGR gene mutation identified from blood DNA, even in the absence of circumscribed testicular lesion at ultrasonography. In addition, based on the known link between LHR mutations and testicular tumourigenesis, yearly ultrasound monitoring of the testes should be considered for these patients.
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Affiliation(s)
- A Daussac
- Département de Pédiatrie, Endocrinologie Pédiatrique, CHU de Bordeaux, Bordeaux, France
| | - P Barat
- Département de Pédiatrie, Endocrinologie Pédiatrique, CHU de Bordeaux, Bordeaux, France
- Département de Pédiatrie, Centre d'Investigation Clinique (CIC 0005), CHU de Bordeaux, Bordeaux, France
| | - N Servant
- Département d'Hormonologie (Développement et Reproduction), CHU de Montpellier, Hôpital Lapeyronie, Université de Montpellier, Montpellier, France
| | - M Yacoub
- Unité d'Anatomo cytopathologie, CHU de Bordeaux, Bordeaux, France
| | - S Missonier
- Unité de Radiologie pédiatrique, CHU de Bordeaux, Bordeaux, France
| | - F Lavran
- Unité de Chirurgie viscérale pédiatrique, CHU de Bordeaux, Bordeaux, France
| | - L Gaspari
- Unité d'Endocrinologie-Gynécologie Pédiatriques, Département de Pédiatrie, CHU de Montpellier, Hôpital Arnaud de Villeneuve, Université Montpellier 1, Montpellier, France
| | - C Sultan
- Département d'Hormonologie (Développement et Reproduction), CHU de Montpellier, Hôpital Lapeyronie, Université de Montpellier, Montpellier, France
- Unité d'Endocrinologie-Gynécologie Pédiatriques, Département de Pédiatrie, CHU de Montpellier, Hôpital Arnaud de Villeneuve, Université Montpellier 1, Montpellier, France
| | - F Paris
- Département d'Hormonologie (Développement et Reproduction), CHU de Montpellier, Hôpital Lapeyronie, Université de Montpellier, Montpellier, France
- Unité d'Endocrinologie-Gynécologie Pédiatriques, Département de Pédiatrie, CHU de Montpellier, Hôpital Arnaud de Villeneuve, Université Montpellier 1, Montpellier, France
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Tavassoli N, Piau A, Berbon C, De Kerimel J, Lafont C, De Souto Barreto P, Guyonnet S, Takeda C, Carrie I, Angioni D, Paris F, Mathieu C, Ousset P, Balardy L, Voisin T, Sourdet S, Delrieu J, Bezombes V, Pons-Pretre V, Andrieu S, Nourhashemi F, Rolland Y, Soto M, Beard J, Sumi Y, Araujo Carvalho I, Vellas B. Framework Implementation of the INSPIRE ICOPE-CARE program in collaboration with the World Health Organization (WHO) in the Occitania region. J Frailty Aging 2020; 10:103-109. [DOI: 10.14283/jfa.2020.26] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Introduction: Limiting the number of dependent older people in coming years will be a major economic and human challenge. In response, the World Health Organization (WHO) has developed the «Integrated Care for Older People (ICOPE)» approach. The aim of the ICOPE program is to enable as many people as possible to age in good health. To reach this objective, the WHO proposes to follow the trajectory of an individual’s intrinsic capacity, which is the composite of all their physical and mental capacities and comprised of multiple domains including mobility, cognition, vitality / nutrition, psychological state, vision, hearing. Objective: The main objective of the INSPIRE ICOPE-CARE program is to implement, in clinical practice at a large scale, the WHO ICOPE program in the Occitania region, in France, to promote healthy aging and maintain the autonomy of seniors using digital medicine. Method: The target population is independent seniors aged 60 years and over. To follow this population, the 6 domains of intrinsic capacity are systematically monitored with pre-established tools proposed by WHO especially STEP 1 which has been adapted in digital form to make remote and large-scale monitoring possible. Two tools were developed: the ICOPE MONITOR, an application, and the BOTFRAIL, a conversational robot. Both are connected to the Gerontopole frailty database. STEP 1 is performed every 4-6 months by professionals or seniors themselves. If a deterioration in one or more domains of intrinsic capacity is identified, an alert is generated by an algorithm which allows health professionals to quickly intervene. The operational implementation of the INSPIRE ICOPE-CARE program in Occitania is done by the network of Territorial Teams of Aging and Prevention of Dependency (ETVPD) which have more than 2,200 members composed of professionals in the medical, medico-social and social sectors. Targeted actions have started to deploy the use of STEP 1 by healthcare professionals (physicians, nurses, pharmacists,…) or different institutions like French National old age insurance fund (CNAV), complementary pension funds (CEDIP), Departmental Council of Haute Garonne, etc. Perspective: The INSPIRE ICOPE-CARE program draws significantly on numeric tools, e-health and digital medicine to facilitate communication and coordination between professionals and seniors. It seeks to screen and monitor 200,000 older people in Occitania region within 3 to 5 years and promote preventive actions. The French Presidential Plan Grand Age aims to largely implement the WHO ICOPE program in France following the experience of the INSPIRE ICOPE-CARE program in Occitania.
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Sosa Marrero C, Acosta O, Castro M, Hernández A, Rioux-Leclercq N, Castelli J, Paris F, de Crevoisier R. Modélisation/simulation de prolifération tumorale et de réponse à la radiothérapie. Cancer Radiother 2019. [DOI: 10.1016/j.canrad.2019.07.054] [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: 10/26/2022]
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Kalfa N, Amouroux C, Fuchs F, Paris F. Should We Really Screen for Genital Variants Before Birth? Eur Urol 2019; 76:e39-e40. [DOI: 10.1016/j.eururo.2019.04.037] [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] [Received: 04/04/2019] [Accepted: 04/24/2019] [Indexed: 10/26/2022]
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Garcia-Arellano A, Martínez-González MA, Ramallal R, Salas-Salvadó J, Hébert JR, Corella D, Shivappa N, Forga L, Schröder H, Muñoz-Bravo C, Estruch R, Fiol M, Lapetra J, Serra-Majem L, Ros E, Rekondo J, Toledo E, Razquin C, Ruiz-Canela M, Alonso A, Barrio Lopez M, Basterra-Gortari F, Benito Corchon S, Bes-Rastrollo M, Beunza J, Carlos S, Cervantes S, de Irala J, de la Rosa P, de la Fuente C, Donat-Vargas C, Donazar M, Fernandez Montero A, Gea A, Goni-Ochandorena E, Guillen-Grima F, Lahortiga F, Llorca J, Lopez del Burgo C, Mari-Sanchıs A, Marti A, Mendonça R, Nuñez-Cordoba J, Pimenta A, Rico A, Ruiz Zambrana A, Sayon-Orea C, Toledo-Atucha J, Vazquez Ruiz Z, Zazpe Garcıa I, Sánchez- Tainta A, Buil-Cosiales P, Díez-Espino J, Sanjulian B, Martínez J, Marti A, Serrano-Martínez M, Basterra-Gortari F, Extremera-Urabayen J, Garcia-Pérez L, Arroyo-Azpa C, Barcena A, Oreja-Arrayago C, Lasanta-Sáez M, Cia-Lecumberri P, Elcarte-Lopez T, Artal-Moneva F, Esparza-López J, Figuerido-Garmendia E, Tabar-Sarrias J, Fernández- Urzainqui L, Ariz-Arnedo M, Cabeza-Beunza J, Pascual-Pascual P, Martínez-Mazo M, Arina-Vergara E, Macua-Martínez T, Pascual Pascual P, Garcés Ducar M, Martí Massó R, Villanueva Moreno R, Parra-Osés A, Serra-Mir M, Pérez-Heras A, Viñas C, Casas R, Medina-Remon A, Villanueva P, Baena J, García M, Oller M, Amat J, Duaso I, García Y, Iglesias C, Simón C, Quinzavos L, Parra L, Liroz M, Benavent J, Clos J, Pla I, Amorós M, Bonet M, Martín M, Sánchez M, Altirriba J, Manzano E, Altés A, Cofán M, Valls-Pedret C, Sala-Vila A, Doménech M, Bulló M, Basora-Gallisa J, González R, Molina C, Mena G, Martínez P, Ibarrola N, Sorlí J, García Roselló J, Martin F, Tort N, Isach A, Babio N, Salas-Huetos A, Becerra-Tomás N, Rosique- Esteban N, Hernandez P, Canudas S, Papandreou C, Ferreira C, Cabre M, Mestres G, Paris F, Llauradó M, Pedret R, Basells J, Vizcaino J, Segarra R, Giardina S, Guasch-Ferré M, Díaz-López A, Fernández-Ballart J, Balanza R, Tello S, Vila J, de la Torre R, Muñoz-Aguayo D, Elosua R, Marrugat J, Schröder H, Molina N, Maestre E, Rovira A, Castañer O, Farré M, Sorli J, Carrasco P, Ortega-Azorín C, Asensio E, Osma R, Barragán R, Francés F, Guillén M, González J, Sáiz C, Portolés O, Giménez F, Coltell O, Fernández-Carrión R, Guillem-Sáiz P, González-Monje I, Quiles L, Pascual V, Riera C, Pages M, Godoy D, Carratalá-Calvo A, Sánchez-Navarro S, Valero-Barceló C, Salaverria I, Hierro TD, Algorta J, Francisco S, Alonso A, San Vicente J, Casi A, Sanz E, Felipe I, Rekondo J, Loma-Osorio A, Fernandez-Crehuet J, Garcia-Rodriguez A, Wärnberg J, Benitez Pont R, Bianchi Alba M, Navajas R, Gómez-Huelgas R, Martínez-González J, Velasco García V, de Diego Salas J, Baca Osorio A, Gil Zarzosa J, Sánchez Luque J, Vargas López E, Romaguera D, García-Valdueza M, Proenza A, Prieto R, Frontera G, Munuera S, Vivó M, Bestard F, Munar J, Coll L, Fiol F, Ginard M, Jover A, García J, Santos-Lozano J, Ortega-Calvo M, Leal M, Martínez E, Mellado L, Miró-Moriano L, Domínguez-Espinaco C, Vaquero- Diaz S, Iglesias P, Román P, Corchado Y, Lozano-Rodríguez J, Lamuela-Raventós R, López- Sabater M, Castellote-Bargalló A, Quifer-Rada P, Tresserra-Rimbau A, Alvarez-Pérez J, Díez Benítez E, Bautista Castaño I, Maldonado Díaz I, Sanchez-Villegas A, Férnandez- Rodríguez M, Sarmiendo de la Fe F, Simón García C, Falcón Sanabria I, Macías Gutiérrez B, Santana Santana A, de la Cruz E, Galera A, Pintó-Salas X, Trias F, Sarasa I, Rodríguez M, Corbella X, Corbella E, Goday A, Muñoz M, Cabezas C, Vinyoles E, Rovira M, Garcia L, Baby P, Ramos A, Mengual L, Roura P, Yuste M, Guarner A, Rovira A, Santamaria M, Mata M, de Juan C, Brau A, Fernandez M, Gutierrez E, Murillo C, Garcia J, Tafalla M, Bobe I, Díaz A, Araque M, Solis E, Cervello T, Montull I, Tur J, Portillo M, Sáez G. Dietary inflammatory index and all-cause mortality in large cohorts: The SUN and PREDIMED studies. Clin Nutr 2019; 38:1221-1231. [PMID: 30651193 DOI: 10.1016/j.clnu.2018.05.003] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 04/24/2018] [Accepted: 05/02/2018] [Indexed: 12/22/2022]
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Kalfa N, Gaspari L, Ollivier M, Philibert P, Bergougnoux A, Paris F, Sultan C. Molecular genetics of hypospadias and cryptorchidism recent developments. Clin Genet 2018; 95:122-131. [PMID: 30084162 DOI: 10.1111/cge.13432] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [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: 05/30/2018] [Revised: 07/31/2018] [Accepted: 08/01/2018] [Indexed: 12/14/2022]
Abstract
During the last decade, a tremendous amount of work has been devoted to the study of the molecular genetics of isolated hypospadias and cryptorchidism, two minor forms of disorders of sex development (DSD). Beyond the genes involved in gonadal determination and sex differentiation, including those underlying androgen biosynthesis and signaling, new genes have been identified through genome-wide association study and familial clustering. Even if no single genetic defect can explain the whole spectrum of DSD, these recent studies reinforce the strong role of the genetic background in the occurrence of these defects. The timing of signaling disruption may explain the different phenotypes.
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Affiliation(s)
- Nicolas Kalfa
- Département de Chirurgie et Urologie Pédiatrique, Hôpital Lapeyronie, CHU de Montpellier et Université Montpellier, Montpellier, France.,National Reference Center of Genital Development CRMR DEV-GEN Constitutif, Institut Universitaire de Recherche Clinique, Departement de Génétique, Université de Montpellier, Montpellier, France
| | - Laura Gaspari
- National Reference Center of Genital Development CRMR DEV-GEN Constitutif, Institut Universitaire de Recherche Clinique, Departement de Génétique, Université de Montpellier, Montpellier, France.,Unité d'Endocrinologie et Gynécologie Pédiatriques, Service de Pédiatrie, CHU de Montpellier, Hôpital Arnaud de Villeneuve et Université Montpellier, Montpellier, France
| | - Margot Ollivier
- Département de Chirurgie et Urologie Pédiatrique, Hôpital Lapeyronie, CHU de Montpellier et Université Montpellier, Montpellier, France.,National Reference Center of Genital Development CRMR DEV-GEN Constitutif, Institut Universitaire de Recherche Clinique, Departement de Génétique, Université de Montpellier, Montpellier, France
| | - Pascal Philibert
- National Reference Center of Genital Development CRMR DEV-GEN Constitutif, Institut Universitaire de Recherche Clinique, Departement de Génétique, Université de Montpellier, Montpellier, France.,Unité d'Endocrinologie et Gynécologie Pédiatriques, Service de Pédiatrie, CHU de Montpellier, Hôpital Arnaud de Villeneuve et Université Montpellier, Montpellier, France
| | - Anne Bergougnoux
- National Reference Center of Genital Development CRMR DEV-GEN Constitutif, Institut Universitaire de Recherche Clinique, Departement de Génétique, Université de Montpellier, Montpellier, France
| | - Francoise Paris
- National Reference Center of Genital Development CRMR DEV-GEN Constitutif, Institut Universitaire de Recherche Clinique, Departement de Génétique, Université de Montpellier, Montpellier, France.,Unité d'Endocrinologie et Gynécologie Pédiatriques, Service de Pédiatrie, CHU de Montpellier, Hôpital Arnaud de Villeneuve et Université Montpellier, Montpellier, France
| | - Charles Sultan
- National Reference Center of Genital Development CRMR DEV-GEN Constitutif, Institut Universitaire de Recherche Clinique, Departement de Génétique, Université de Montpellier, Montpellier, France.,Unité d'Endocrinologie et Gynécologie Pédiatriques, Service de Pédiatrie, CHU de Montpellier, Hôpital Arnaud de Villeneuve et Université Montpellier, Montpellier, France
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12
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Clément-Colmou K, Potiron V, Guillonneau M, Pietri M, Jouglar E, Chiavassa S, Delpon G, Paris F, Supiot S. Impact des schémas hypofractionnés sur le microenvironnement vasculaire tumoral. Cancer Radiother 2018. [DOI: 10.1016/j.canrad.2018.07.023] [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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13
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Ollivier M, Paris F, Philibert P, Garnier S, Coffy A, Fauconnet-Servant N, Haddad M, Guys JM, Reynaud R, Faure A, Merrot T, Wagner K, Bréaud J, Valla JS, Dobremez E, Gaspari L, Daures JP, Sultan C, Kalfa N. Family History is Underestimated in Children with Isolated Hypospadias: A French Multicenter Report of 88 Families. J Urol 2018; 200:890-894. [PMID: 29723568 DOI: 10.1016/j.juro.2018.04.072] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/24/2018] [Indexed: 11/26/2022]
Abstract
PURPOSE While familial forms of complex disorders/differences of sex development have been widely reported, data regarding isolated hypospadias are sparse and a family history is thought to be less frequent. We aimed to determine the frequency of hypospadias in families of boys with hypospadias, to establish whether these familial forms exhibit a particular phenotype and to evaluate the prevalence of genetic defects of the main candidate genes. MATERIALS AND METHODS A total of 395 boys with hypospadias were prospectively screened for a family history with a standardized questionnaire, extensive clinical description, family tree and sequencing of AR, SF1, SRD5A2 and MAMLD1. RESULTS Family history of hypospadias was more frequent than expected (88 patients, 22.3%). In 17 instances (19.3%) familial hypospadias cases were multiple. Familial hypospadias was related to the paternal side in 59.1% of cases, consisting of the father himself (30.7%) as well as paternal uncles and cousins. Premature birth, assisted reproductive techniques, other congenital abnormalities and growth retardation were not more frequent in familial hypospadias than in sporadic cases. The severity of phenotype was similar in both groups. The results of genetic analysis combined with previous data on androgen receptor sequencing revealed that familial cases more frequently tend to demonstrate genetic defects than sporadic cases (5.68% vs 1.63%, p = 0.048). CONCLUSIONS Familial forms of hypospadias are far more frequent than previously reported. Even minor and isolated forms justify a full clinical investigation of the family history. Detecting these hereditary forms may help to determine the underlying genetic defects, and may improve followup and counseling of these patients.
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Affiliation(s)
- Margot Ollivier
- Department of Pediatric Surgery and Urology, Lapeyronie Hospital, CHU Montpellier, Montpellier University, Montpellier, France
| | - Francoise Paris
- National Reference Center of Genital Development (Constitutive South), Arnaud de Villeneuve Hospital, CHU Montpellier, Montpellier University, Montpellier, France; Pediatric Endocrinology and Gynecology Unit, Department of Pediatrics, Arnaud de Villeneuve Hospital, CHU Montpellier, Montpellier University, Montpellier, France; Genetic Genital Development Unit, University Institute of Clinical Research, CHU Montpellier, Montpellier University, Montpellier, France
| | - Pascal Philibert
- National Reference Center of Genital Development (Constitutive South), Arnaud de Villeneuve Hospital, CHU Montpellier, Montpellier University, Montpellier, France; Genetic Genital Development Unit, University Institute of Clinical Research, CHU Montpellier, Montpellier University, Montpellier, France
| | - Sarah Garnier
- Department of Pediatric Surgery and Urology, Lapeyronie Hospital, CHU Montpellier, Montpellier University, Montpellier, France
| | - Amandine Coffy
- Laboratory of Biostatistics and Epidemiology, University Institute of Clinical Research, Montpellier University, Montpellier, France
| | - Nadège Fauconnet-Servant
- National Reference Center of Genital Development (Constitutive South), Arnaud de Villeneuve Hospital, CHU Montpellier, Montpellier University, Montpellier, France; Genetic Genital Development Unit, University Institute of Clinical Research, CHU Montpellier, Montpellier University, Montpellier, France
| | - Mirna Haddad
- Department of Pediatric Surgery and Urology, Timone Hospital, AP-HM, Marseille, France
| | - Jean Michel Guys
- Department of Pediatric Surgery and Urology, Timone Hospital, AP-HM, Marseille, France
| | - Rachel Reynaud
- Pediatric Endocrinology and Diabetology Unit, Timone Hospital, AP-HM, Marseille, France
| | - Alice Faure
- Department of Pediatric Surgery and Urology, Nord Hospital, AP-HM, Marseille, France
| | - Thierry Merrot
- Department of Pediatric Surgery and Urology, Nord Hospital, AP-HM, Marseille, France
| | - Kathy Wagner
- Pediatric Service, Lenval Hospital, CHU de Nice, Nice, France
| | - Jean Bréaud
- Department of Pediatric Surgery and Urology, Lenval Hospital, CHU de Nice, Nice, France
| | - Jean Stéphane Valla
- Department of Pediatric Surgery and Urology, Lenval Hospital, CHU de Nice, Nice, France
| | - Eric Dobremez
- Department of Pediatric Surgery, Pellegrin Children's Hospital, Bordeaux, France
| | - Laura Gaspari
- Pediatric Endocrinology and Gynecology Unit, Department of Pediatrics, Arnaud de Villeneuve Hospital, CHU Montpellier, Montpellier University, Montpellier, France
| | - Jean-Pierre Daures
- Laboratory of Biostatistics and Epidemiology, University Institute of Clinical Research, Montpellier University, Montpellier, France
| | - Charles Sultan
- Pediatric Endocrinology and Gynecology Unit, Department of Pediatrics, Arnaud de Villeneuve Hospital, CHU Montpellier, Montpellier University, Montpellier, France
| | - Nicolas Kalfa
- Department of Pediatric Surgery and Urology, Lapeyronie Hospital, CHU Montpellier, Montpellier University, Montpellier, France; National Reference Center of Genital Development (Constitutive South), Arnaud de Villeneuve Hospital, CHU Montpellier, Montpellier University, Montpellier, France; Pediatric Endocrinology and Gynecology Unit, Department of Pediatrics, Arnaud de Villeneuve Hospital, CHU Montpellier, Montpellier University, Montpellier, France; Genetic Genital Development Unit, University Institute of Clinical Research, CHU Montpellier, Montpellier University, Montpellier, France.
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Estéphan H, Leonetti D, Gaugler M, Hadchity E, Corre I, Paris F. OC-0585: Secreted acid sphingomyelinase and ceramide contribute to radiation-induced intestinal toxicity. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30895-8] [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: 11/29/2022]
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15
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Delpon G, N'Guessan J, Paul-Gilloteaux P, Clément-Colmou K, Potiron V, Supiot S, Paris F, Chiavassa S. EP-1998: In silico modelling of the impact of the fractionation for hypofractionated prostate treatments. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32307-7] [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: 10/14/2022]
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16
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Clement-Colmou K, Potiron V, Guillonneau M, Jouglar E, Paris F, Supiot S. OC-0376: Hypofractionated RT: fractionation schedule affects tumour vascular morphology and functionality. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30686-8] [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: 11/29/2022]
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17
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Noblet C, Delpon G, Supiot S, Potiron V, Paris F, Chiavassa S. A new tissue segmentation method to calculate 3D dose in small animal radiation therapy. Radiat Oncol 2018; 13:32. [PMID: 29482652 PMCID: PMC5828405 DOI: 10.1186/s13014-018-0971-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 09/20/2017] [Accepted: 02/11/2018] [Indexed: 11/22/2022] Open
Abstract
Background In pre-clinical animal experiments, radiation delivery is usually delivered with kV photon beams, in contrast to the MV beams used in clinical irradiation, because of the small size of the animals. At this medium energy range, however, the contribution of the photoelectric effect to absorbed dose is significant. Accurate dose calculation therefore requires a more detailed tissue definition because both density (ρ) and elemental composition (Zeff) affect the dose distribution. Moreover, when applied to cone beam CT (CBCT) acquisitions, the stoichiometric calibration of HU becomes inefficient as it is designed for highly collimated fan beam CT acquisitions. In this study, we propose an automatic tissue segmentation method of CBCT imaging that assigns both density (ρ) and elemental composition (Zeff) in small animal dose calculation. Methods The method is based on the relationship found between CBCT number and ρ*Zeff product computed from known materials. Monte Carlo calculations were performed to evaluate the impact of ρZeff variation on the absorbed dose in tissues. These results led to the creation of a tissue database composed of artificial tissues interpolated from tissue values published by the ICRU. The ρZeff method was validated by measuring transmitted doses through tissue substitute cylinders and a mouse with EBT3 film. Measurements were compared to the results of the Monte Carlo calculations. Results The study of the impact of ρZeff variation over the range of materials, from ρZeff = 2 g.cm− 3 (lung) to 27 g.cm− 3 (cortical bone) led to the creation of 125 artificial tissues. For tissue substitute cylinders, the use of ρZeff method led to maximal and average relative differences between the Monte Carlo results and the EBT3 measurements of 3.6% and 1.6%. Equivalent comparison for the mouse gave maximal and average relative differences of 4.4% and 1.2%, inside the 80% isodose area. Gamma analysis led to a 94.9% success rate in the 10% isodose area with 4% and 0.3 mm criteria in dose and distance. Conclusions Our new tissue segmentation method was developed for 40kVp CBCT images. Both density and elemental composition are assigned to each voxel by using a relationship between HU and the product ρZeff. The method, validated by comparing measurements and calculations, enables more accurate small animal dose distribution calculated on low energy CBCT images.
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Affiliation(s)
- C Noblet
- Medical Physics Department, Institut de Cancérologie de l'Ouest Centre René Gauducheau, 44805, Saint-Herblain, France. .,CRCINA, Inserm U1232, Université de Nantes, Nantes, France.
| | - G Delpon
- Medical Physics Department, Institut de Cancérologie de l'Ouest Centre René Gauducheau, 44805, Saint-Herblain, France.,CRCINA, Inserm U1232, Université de Nantes, Nantes, France
| | - S Supiot
- CRCINA, Inserm U1232, Université de Nantes, Nantes, France.,Radiotherapy Department, Institut de Cancérologie de l'Ouest Centre René Gauducheau, 44805, Saint-Herblain, France
| | - V Potiron
- CRCINA, Inserm U1232, Université de Nantes, Nantes, France.,LABCT, Institut de Cancérologie de l'Ouest Centre René Gauducheau, 44805, Saint-Herblain, France
| | - F Paris
- CRCINA, Inserm U1232, Université de Nantes, Nantes, France.,LABCT, Institut de Cancérologie de l'Ouest Centre René Gauducheau, 44805, Saint-Herblain, France
| | - S Chiavassa
- Medical Physics Department, Institut de Cancérologie de l'Ouest Centre René Gauducheau, 44805, Saint-Herblain, France.,CRCINA, Inserm U1232, Université de Nantes, Nantes, France
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18
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Paris F, Flatters D, Caburet S, Legois B, Servant N, Lefebvre H, Sultan C, Veitia RA. A novel variant of DHH in a familial case of 46,XY disorder of sex development: Insights from molecular dynamics simulations. Clin Endocrinol (Oxf) 2017; 87:539-544. [PMID: 28708305 DOI: 10.1111/cen.13420] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 07/10/2017] [Accepted: 07/10/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Disorders of sex development (DSD) are a heterogeneous group of conditions affecting the differentiation and development of the internal and external genitalia. Here, we aimed at identifying the genetic cause of DSD in two 46,XY sisters from a consanguineous family. DESIGN We performed a whole-exome sequencing of two 46,XY female individuals. Sanger sequencing was used to validate the most likely candidate variant, affecting the desert hedgehog (DHH) gene. Molecular dynamics simulations were performed to get insights into the impact of the variant on protein structure and on its interaction with the protein partner BOC (brother of CDO/cell adhesion molecule, downregulated by oncogenes). PATIENTS The index patient presented with a female phenotype, primary amenorrhoea (low oestradiol and testosterone and high FSH and LH). She also had an apparent absence of intra-abdominal gonads and uterus, facial dysmorphy, psychomotor retardation and neuropathy. Her sister displayed a similar gonadal and endocrinological picture, without dysmorphy or psychomotor retardation. RESULTS Whole-exome sequencing revealed a homozygous variant in DHH leading to the p.Trp173Cys substitution. The relevant Trp residue is conserved, and its alteration was predicted to be deleterious. Molecular dynamics simulations showed that the mutation increases the conformational flexibility of the protein and potentially alters its interaction with BOC, a positive regulator of Hedgehog signalling. We do not exclude an interference of the mutation with DHH-intein-mediated auto-processing. CONCLUSIONS This report increases the number of described homozygous DHH variants and highlights the importance of advanced bioinformatic tools to better understand the pathogenicity of human variants.
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Affiliation(s)
- Francoise Paris
- Département d'Endocrinologie et de Gynécologie Pédiatriques, CHU Arnaud de Villeneuve, Université de Montpellier, Montpellier, France
- Département d'Hormonologie, CHU Lapeyronie, Université de Montpellier, Montpellier, France
| | - Delphine Flatters
- Molécules Thérapeutiques in Silico, Inserm UMR-S 973, Paris, France
- Université Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Sandrine Caburet
- Université Paris Diderot, Sorbonne Paris Cité, Paris, France
- Institut Jacques Monod, Université Paris Diderot, CNRS UMR7592, Paris, France
| | - Bérangère Legois
- Université Paris Diderot, Sorbonne Paris Cité, Paris, France
- Institut Jacques Monod, Université Paris Diderot, CNRS UMR7592, Paris, France
| | - Nadège Servant
- Département d'Hormonologie, CHU Lapeyronie, Université de Montpellier, Montpellier, France
| | - Hervé Lefebvre
- Service d'Endocrinologie, Diabète et Maladies Métaboliques, INSERM U1239, CHU de Rouen, Rouen, France
| | - Charles Sultan
- Département d'Endocrinologie et de Gynécologie Pédiatriques, CHU Arnaud de Villeneuve, Université de Montpellier, Montpellier, France
| | - Reiner A Veitia
- Université Paris Diderot, Sorbonne Paris Cité, Paris, France
- Institut Jacques Monod, Université Paris Diderot, CNRS UMR7592, Paris, France
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19
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Faraj S, Bahri M, Fougeray S, El Roz A, Fleurence J, Véziers J, Leclair MD, Thébaud E, Paris F, Birklé S. Neuroblastoma chemotherapy can be augmented by immunotargeting O-acetyl-GD2 tumor-associated ganglioside. Oncoimmunology 2017; 7:e1373232. [PMID: 29296527 DOI: 10.1080/2162402x.2017.1373232] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 03/06/2017] [Revised: 08/25/2017] [Accepted: 08/25/2017] [Indexed: 12/28/2022] Open
Abstract
Despite recent advances in high-risk neuroblastoma therapy, the prognosis for patients remains poor. In addition, many patients suffer from complications related to available therapies that are highly detrimental to their quality of life. New treatment modalities are, thus, urgently needed to further improve the efficacy and reduce the toxicity of existing therapies. Since antibodies specific for O-acetyl GD2 ganglioside display pro-apoptotic activity against neuroblastoma cells, we hypothesized that combination of immunotherapy could enhance tumor efficacy of neuroblastoma chemotherapy. We demonstrate here that combination of anti-O-acetyl GD2 monoclonal antibody 8B6 with topotecan synergistically inhibited neuroblastoma cell proliferation, as shown by the combination index values. Mechanistically, we evidence that mAb 8B6 induced plasma cell membrane lesions, consistent with oncosis. Neuroblastoma tumour cells treated with mAb 8B6 indeed showed an increased uptake of topotecan by the tumor cells and a more profound tumor cell death evidenced by increased caspase-3 activation. We also found that the combination with topotecan plus monoclonal antibody 8B6 showed a more potent anti-tumor efficacy in vivo than either agent alone. Importantly, we used low-doses of topotecan with no noticeable side effect. Our data suggest that chemo-immunotherapy combinations may improve the clinical efficacy and safety profile of current chemotherapeutic modalities of neuroblastoma.
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Affiliation(s)
- S Faraj
- CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, Loire Atlantique, France.,Service de chirurgie pédiatrique, CHU de Nantes, 38 boulevard Jean Monnet, Nantes, Loire Atlantique, France
| | - M Bahri
- CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, Loire Atlantique, France
| | - S Fougeray
- CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, Loire Atlantique, France.,Université de Nantes, UFR des Sciences Pharmaceutiques et Biologiques, 9 rue Bias, Nantes, Loire Atlantique, France
| | - A El Roz
- CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, Loire Atlantique, France.,Université de Nantes, UFR des Sciences Pharmaceutiques et Biologiques, 9 rue Bias, Nantes, Loire Atlantique, France
| | - J Fleurence
- CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, Loire Atlantique, France.,Université de Nantes, UFR des Sciences Pharmaceutiques et Biologiques, 9 rue Bias, Nantes, Loire Atlantique, France
| | - J Véziers
- INSERM, UMRS 1229, RMeS "Regenerative Medicine and Skeleton", CHU Nantes, PH4 OTONN, Université de Nantes, UFR Odontologie, SC3M Plateform, UMS INSERM 016 - CNRS 3556, SFR François Bonamy, 1 place Alexis Ricordeau, Nantes, Loire Atlantique, France
| | - M D Leclair
- Service de chirurgie pédiatrique, CHU de Nantes, 38 boulevard Jean Monnet, Nantes, Loire Atlantique, France.,Université de Nantes, UFR de Médecine, 1 rue Gaston Veil, Nantes, Loire Atlantique, France
| | - E Thébaud
- Service d'oncologie pédiatrique, CHU de Nantes, quai Moncousu, Nantes, Loire Atlantique, France
| | - F Paris
- CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, Loire Atlantique, France
| | - S Birklé
- CRCINA, INSERM, Université d'Angers, Université de Nantes, Nantes, Loire Atlantique, France.,Université de Nantes, UFR des Sciences Pharmaceutiques et Biologiques, 9 rue Bias, Nantes, Loire Atlantique, France
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Sultan C, Gobinet J, Terouanne B, Paris F, Belon C, Jalaguier S, Georget V, Poujol N, Auzou G, Lumbroso S. Récepteur des androgènes : Pathologie moléculaire. ACTA ACUST UNITED AC 2017. [DOI: 10.1051/jbio/2002196030223] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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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21
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Garnier S, Maillet O, Cereda B, Ollivier M, Jeandel C, Broussous S, Lopez C, Paris F, Philibert P, Amouroux C, Jeandel C, Coffy A, Gaspari L, Daures JP, Sultan C, Kalfa N. Late surgical correction of hypospadias increases the risk of complications: a series of 501 consecutive patients. BJU Int 2017; 119:942-947. [DOI: 10.1111/bju.13771] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Sarah Garnier
- Department of Paediatric Surgery and Urology; Lapeyronie Hospital; CHU Montpellier; Montpellier France
| | - Olivier Maillet
- Department of Paediatric Surgery and Urology; Lapeyronie Hospital; CHU Montpellier; Montpellier France
| | - Barbara Cereda
- Department of Paediatric Surgery and Urology; Lapeyronie Hospital; CHU Montpellier; Montpellier France
| | - Margot Ollivier
- Department of Paediatric Surgery and Urology; Lapeyronie Hospital; CHU Montpellier; Montpellier France
| | - Clement Jeandel
- Department of Paediatric Surgery and Urology; Lapeyronie Hospital; CHU Montpellier; Montpellier France
| | - Sylvie Broussous
- Department of Paediatric Surgery and Urology; Lapeyronie Hospital; CHU Montpellier; Montpellier France
| | - Christophe Lopez
- Department of Paediatric Surgery and Urology; Lapeyronie Hospital; CHU Montpellier; Montpellier France
| | - Francoise Paris
- Department of Paediatric Endocrinology; Arnaud de Villeneuve Hospital; CHU Montpellier; Montpellier France
- Department of Endocrinology; Lapeyronie Hospital; CHU Montpellier; Montpellier France
| | - Pascal Philibert
- Department of Endocrinology; Lapeyronie Hospital; CHU Montpellier; Montpellier France
| | - Cyril Amouroux
- Department of Paediatric Endocrinology; Arnaud de Villeneuve Hospital; CHU Montpellier; Montpellier France
| | - Claire Jeandel
- Department of Paediatric Endocrinology; Arnaud de Villeneuve Hospital; CHU Montpellier; Montpellier France
| | - Amandine Coffy
- Institute of Clinical Research; University of Montpellier; Montpellier France
| | - Laura Gaspari
- Department of Endocrinology; Lapeyronie Hospital; CHU Montpellier; Montpellier France
| | - Jean Pierre Daures
- Institute of Clinical Research; University of Montpellier; Montpellier France
| | - Charles Sultan
- Department of Paediatric Endocrinology; Arnaud de Villeneuve Hospital; CHU Montpellier; Montpellier France
- Department of Endocrinology; Lapeyronie Hospital; CHU Montpellier; Montpellier France
| | - Nicolas Kalfa
- Department of Paediatric Surgery and Urology; Lapeyronie Hospital; CHU Montpellier; Montpellier France
- Department of Endocrinology; Lapeyronie Hospital; CHU Montpellier; Montpellier France
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22
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Maïmoun L, Paris F, Coste O, Sultan C. [Intensive training and menstrual disorders in young female: Impact on bone mass]. ACTA ACUST UNITED AC 2016; 44:659-663. [PMID: 27751748 DOI: 10.1016/j.gyobfe.2016.09.001] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 09/09/2016] [Indexed: 10/20/2022]
Abstract
Participation in recreational physical activity is widely acknowledged to provide significant health benefits. Conversely, intense training imposes several constraints, such as intermittent or chronic metabolic and psychogenic training stressors and maintenance of very low body fat to maximize performance. Adolescent and adult athletic women are therefore at risk of overtraining and/or poor dietary intake, which may have several consequences for endocrine function particularly on hypothalamic-pituitary-gonadal axis. Female athletes, particularly those participating in sports needing leanness or low body weight, present a high prevalence of menstrual disorders with clinical manifestations ranging from delayed menarche, oligomenorrhea to primary and secondary amenorrhea. A high degree of variability according to the type of sport and the intensity of the practice is however observed. Exercise-related reproductive dysfunction may have some consequences for growth velocity and peak bone mass acquisition during adolescence and bone pathologies in adults. Recent findings highlight the endocrine role of adipose tissue and energy balance in the regulation of homeostasis and reproductive function. A better understanding of the mechanisms whereby intense training affects the endocrine systems may orient research to develop innovative strategies probably based on individualized nutritional approach to improve the medical care of these female athletes and protect their reproductive function.
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Affiliation(s)
- L Maïmoun
- Service de médecine nucléaire, hôpital Lapeyronie, université de Montpellier 1 (UM1), CHRU de Montpellier, 34295 Montpellier, France; PhyMedExp, University of Montpellier, Inserm U1046, CNRS UMR 9214, 34295 Montpellier cedex 5, France.
| | - F Paris
- Unité d'endocrinologie et gynécologie pédiatrique, département de pédiatrie, hôpital A.-de-Villeneuve, UMI, CHRU de Montpellier, 34295 Montpellier, France
| | - O Coste
- Direction régionale de la jeunesse, des sports et de la cohésion sociale Languedoc Roussillon/Midi-Pyrénées, France
| | - C Sultan
- Unité d'endocrinologie et gynécologie pédiatrique, département de pédiatrie, hôpital A.-de-Villeneuve, UMI, CHRU de Montpellier, 34295 Montpellier, France
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23
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Noblet C, Chiavassa S, Smekens F, Sarrut D, Passal V, Suhard J, Lisbona A, Paris F, Delpon G. Validation of fast Monte Carlo dose calculation in small animal radiotherapy with EBT3 radiochromic films. Phys Med Biol 2016; 61:3521-35. [DOI: 10.1088/0031-9155/61/9/3521] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Paris F, Gaspari L, Mbou F, Philibert P, Audran F, Morel Y, Biason-Lauber A, Sultan C. Endocrine and molecular investigations in a cohort of 25 adolescent males with prominent/persistent pubertal gynecomastia. Andrology 2016; 4:263-9. [DOI: 10.1111/andr.12145] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 11/02/2015] [Accepted: 11/12/2015] [Indexed: 01/18/2023]
Affiliation(s)
- F. Paris
- Unité d'Endocrinologie-Gynécologie Pédiatriques; Département de Pédiatrie; Hôpital Arnaud-de-Villeneuve; CHU Montpellier et Université Montpellier 1 Montpellier France
- Département d'Hormonologie (Développement et Reproduction); Hôpital Lapeyronie; CHU Montpellier et Université Montpellier 1 Montpellier France
| | - L. Gaspari
- Unité d'Endocrinologie-Gynécologie Pédiatriques; Département de Pédiatrie; Hôpital Arnaud-de-Villeneuve; CHU Montpellier et Université Montpellier 1 Montpellier France
- Département de Pédiatrie; Hôpital Caremeau; CHU Nîmes; Nîmes France
| | - F. Mbou
- Département de Pédiatrie; CHU de Fort de France; Martinique
| | - P. Philibert
- Département d'Hormonologie (Développement et Reproduction); Hôpital Lapeyronie; CHU Montpellier et Université Montpellier 1 Montpellier France
| | - F. Audran
- Département d'Hormonologie (Développement et Reproduction); Hôpital Lapeyronie; CHU Montpellier et Université Montpellier 1 Montpellier France
| | - Y. Morel
- Centre de Biologie et Pathologie Est; Bron France
| | - A. Biason-Lauber
- Department of Medicine; University of Fribourg; Fribourg Switzerland
| | - C. Sultan
- Unité d'Endocrinologie-Gynécologie Pédiatriques; Département de Pédiatrie; Hôpital Arnaud-de-Villeneuve; CHU Montpellier et Université Montpellier 1 Montpellier France
- Département d'Hormonologie (Développement et Reproduction); Hôpital Lapeyronie; CHU Montpellier et Université Montpellier 1 Montpellier France
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Jung AJ, Soskin S, Paris F, Lipsker D. Syndrome de McCune-Albright révélé par des taches café-au-lait blaschko-linéaires du dos. Ann Dermatol Venereol 2016; 143:21-6. [DOI: 10.1016/j.annder.2015.10.585] [Citation(s) in RCA: 2] [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] [Received: 02/22/2015] [Revised: 05/15/2015] [Accepted: 10/02/2015] [Indexed: 10/22/2022]
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Maïmoun L, Guillaume S, Lefebvre P, Philibert P, Bertet H, Picot MC, Gaspari L, Paris F, Seneque M, Dupuys AM, Courtet P, Thomas E, Mariano-Goulart D, Bringer J, Renard E, Sultan C. Evidence of a link between resting energy expenditure and bone remodelling, glucose homeostasis and adipokine variations in adolescent girls with anorexia nervosa. Osteoporos Int 2016; 27:135-46. [PMID: 26245848 DOI: 10.1007/s00198-015-3223-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 06/25/2015] [Indexed: 10/23/2022]
Abstract
UNLABELLED Low bone mass is a consequence of anorexia nervosa (AN). This study assessed the effects of energy deficiency on various bone and hormonal parameters. The interrelationships between energy deficiency and bone remodelling, glucose homeostasis and adipokines underscore the importance of preventing energy deficiency to limit demineralisation and hormonal alterations in AN patients. INTRODUCTION Low areal bone mineral density (aBMD) is a well-known consequence of AN. However, the impact of reduced energy expenditure on bone metabolism is unknown. This study assessed the effects of energy deficiency on bone remodelling and its potential interactions with glucose homeostasis and adipose tissue-derived hormones in AN, a clinical model for reduced energy expenditure. METHODS Fifty women with AN and 50 age-matched controls (mean age 18.1 ± 2.7 and 18.0 ± 2.1 years, respectively) were enrolled. aBMD was determined with DXA. Resting energy expenditure (REEm), a marker of energy status, was indirectly assessed by calorimetry. Bone turnover markers, undercarboxylated osteocalcin (ucOC), parameters of glucose homeostasis, adipokines and growth factors were concomitantly evaluated. RESULTS AN patients presented low aBMD at all bone sites. REEm, bone formation markers, ucOC, glucose, insulin, HOMA-IR, leptin and IGF-1 were significantly reduced, whereas the bone resorption marker, leptin receptor (sOB-R) and adiponectin were elevated in AN compared with CON. In AN patients, REEm was positively correlated with weight, BMI, whole body (WB) fat mass, WB fat-free soft tissue, markers of bone formation, glucose, insulin, HOMA-IR, leptin and IGF-1 and negatively correlated with the bone resorption marker and sOB-R. Biological parameters, aBMD excepted, appeared more affected by the weight variation in the last 6 months than by the disease duration. CONCLUSIONS The strong interrelationships between REEm and bone remodelling, glucose homeostasis and adipokines underscore the importance of preventing energy deficiency to limit short- and long-term bone demineralisation and hormonal alterations in AN patients.
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Affiliation(s)
- L Maïmoun
- Service de Médecine Nucléaire, Hôpital Lapeyronie, Centre Hospitalier Régional Universitaire (CHRU) Montpellier et Université Montpellier 1 (UMI), 34295, Montpellier, France
- Physiologie et Médecine Expérimentale du Cœur et des Muscles (PhyMedExp), University of Montpellier, INSERM U1046, CNRS UMR 9214, 34295, Montpellier, France
| | - S Guillaume
- Département d'Urgence et Post-Urgence Psychiatrique, Hôpital Lapeyronie, CHRU Montpellier, UMI, INSERM U1061, 34295, Montpellier, France
| | - P Lefebvre
- Department of Endocrinology, Diabetes, Nutrition, Hôpital Lapeyronie, CHRU Montpellier, 34295, Montpellier, France
| | - P Philibert
- Departement de Biochimie et d'Hormonologie, Hôpital Lapeyronie, CHRU Montpellier, 34295, Montpellier, France
| | - H Bertet
- Unité de Recherche Clinique et Epidémiologie, Hôpital Lapeyronie, CHRU Montpellier, 34295, Montpellier, France
| | - M-C Picot
- Unité de Recherche Clinique et Epidémiologie, Hôpital Lapeyronie, CHRU Montpellier, 34295, Montpellier, France
- CIC INSERM 1411, Hôpital Saint Eloi, CHRU Montpellier, 34295, Montpellier cedex 5, France
| | - L Gaspari
- Département de Pédiatrie, Hôpital Caremeau, CHRU Nîmes, 30000, Nîmes, France
| | - F Paris
- Departement de Biochimie et d'Hormonologie, Hôpital Lapeyronie, CHRU Montpellier, 34295, Montpellier, France
- Unité d'Endocrinologie et Gynécologie Pédiatrique, Département de Pédiatrie, Hôpital Arnaud de Villeneuve, 191 avenue Doyen Gaston Giraud, 34295, Montpellier Cedex 5, France
| | - M Seneque
- Département d'Urgence et Post-Urgence Psychiatrique, Hôpital Lapeyronie, CHRU Montpellier, UMI, INSERM U1061, 34295, Montpellier, France
| | - A-M Dupuys
- Departement de Biochimie et d'Hormonologie, Hôpital Lapeyronie, CHRU Montpellier, 34295, Montpellier, France
| | - P Courtet
- Département d'Urgence et Post-Urgence Psychiatrique, Hôpital Lapeyronie, CHRU Montpellier, UMI, INSERM U1061, 34295, Montpellier, France
| | - E Thomas
- Service de Rhumatologie, Hôpital Lapeyronie, CHRU Montpellier, 34295, Montpellier, France
| | - D Mariano-Goulart
- Service de Médecine Nucléaire, Hôpital Lapeyronie, Centre Hospitalier Régional Universitaire (CHRU) Montpellier et Université Montpellier 1 (UMI), 34295, Montpellier, France
- Physiologie et Médecine Expérimentale du Cœur et des Muscles (PhyMedExp), University of Montpellier, INSERM U1046, CNRS UMR 9214, 34295, Montpellier, France
| | - J Bringer
- Department of Endocrinology, Diabetes, Nutrition, Hôpital Lapeyronie, CHRU Montpellier, 34295, Montpellier, France
| | - E Renard
- Department of Endocrinology, Diabetes, Nutrition, Hôpital Lapeyronie, CHRU Montpellier, 34295, Montpellier, France
- CIC INSERM 1411, Hôpital Saint Eloi, CHRU Montpellier, 34295, Montpellier cedex 5, France
- Institut de Génomique Fonctionnelle, CNRS UMR 5203/INSERM U1161/Université Montpellier, Montpellier, France
| | - C Sultan
- Unité d'Endocrinologie et Gynécologie Pédiatrique, Département de Pédiatrie, Hôpital Arnaud de Villeneuve, 191 avenue Doyen Gaston Giraud, 34295, Montpellier Cedex 5, France.
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Supiot S, Clément-Colmou K, Paris F, Corre I, Chiavassa S, Delpon G. [Which rules apply to hypofractionated radiotherapy?]. Cancer Radiother 2015; 19:421-5. [PMID: 26321647 DOI: 10.1016/j.canrad.2015.05.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 05/11/2015] [Revised: 05/18/2015] [Accepted: 05/19/2015] [Indexed: 12/22/2022]
Abstract
Hypofractionated radiotherapy is now more widely prescribed due to improved targeting techniques (intensity modulated radiotherapy, image-guided radiotherapy and stereotactic radiotherapy). Low dose hypofractionated radiotherapy is routinely administered mostly for palliative purposes. High or very high dose hypofractionated irradiation must be delivered according to very strict procedures since every minor deviation can lead to major changes in dose delivery to the tumor volume and organs at risk. Thus, each stage of the processing must be carefully monitored starting from the limitations and the choice of the hypofractionation technique, tumour contouring and dose constraints prescription, planning and finally dose calculation and patient positioning verification.
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Affiliation(s)
- S Supiot
- Département de radiothérapie, institut de cancérologie de l'Ouest Nantes-Angers, boulevard Jacques-Monod, 44805 Saint-Herblain, France; Centre de recherche en cancérologie Nantes-Angers, UMR Inserm 892, quai Moncousu, 44007 Nantes cedex 1, France; CNRS 6299, quai Moncousu, 44007 Nantes cedex 1, France.
| | - K Clément-Colmou
- Département de radiothérapie, institut de cancérologie de l'Ouest Nantes-Angers, boulevard Jacques-Monod, 44805 Saint-Herblain, France; Centre de recherche en cancérologie Nantes-Angers, UMR Inserm 892, quai Moncousu, 44007 Nantes cedex 1, France; CNRS 6299, quai Moncousu, 44007 Nantes cedex 1, France
| | - F Paris
- Centre de recherche en cancérologie Nantes-Angers, UMR Inserm 892, quai Moncousu, 44007 Nantes cedex 1, France; CNRS 6299, quai Moncousu, 44007 Nantes cedex 1, France
| | - I Corre
- Centre de recherche en cancérologie Nantes-Angers, UMR Inserm 892, quai Moncousu, 44007 Nantes cedex 1, France; CNRS 6299, quai Moncousu, 44007 Nantes cedex 1, France
| | - S Chiavassa
- Centre de recherche en cancérologie Nantes-Angers, UMR Inserm 892, quai Moncousu, 44007 Nantes cedex 1, France; CNRS 6299, quai Moncousu, 44007 Nantes cedex 1, France; Département de radiophysique, institut de cancérologie de l'Ouest Nantes-Angers, boulevard Jacques-Monod, 44805 Saint-Herblain, France
| | - G Delpon
- Centre de recherche en cancérologie Nantes-Angers, UMR Inserm 892, quai Moncousu, 44007 Nantes cedex 1, France; CNRS 6299, quai Moncousu, 44007 Nantes cedex 1, France; Département de radiophysique, institut de cancérologie de l'Ouest Nantes-Angers, boulevard Jacques-Monod, 44805 Saint-Herblain, France
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Mecheri B, Paris F, Lübbert H. EHMTI-0219. Quantitative histological examinations of inter- and intraindividual differences in the dural vasculature of the mouse. J Headache Pain 2014. [PMCID: PMC4182239 DOI: 10.1186/1129-2377-15-s1-f19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Mignard V, Lalier L, Paris F, Vallette FM. Bioactive lipids and the control of Bax pro-apoptotic activity. Cell Death Dis 2014; 5:e1266. [PMID: 24874738 PMCID: PMC4047880 DOI: 10.1038/cddis.2014.226] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 04/16/2014] [Accepted: 04/18/2014] [Indexed: 12/19/2022]
Abstract
Lipids are key regulators of cell physiology through the control of many aspects of cellular life and survival. In particular, lipids have been implicated at different levels and through many different mechanisms in the cell death program called apoptosis. Here, we discuss the action of lipids in the regulation of the activation and the integration of Bax into the mitochondrial outer membrane, a key pro-apoptotic member of the BCL-2 family. We describe how, during apoptosis, lipids can act simultaneously or in parallel as receptors or ligands for Bax to stimulate or inhibit its pro-death activity.
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Affiliation(s)
- V Mignard
- Centre de Recherche en Cancérologie Nantes Angers, Nantes, France
- Université de Nantes, Nantes, France
| | - L Lalier
- Centre de Recherche en Cancérologie Nantes Angers, Nantes, France
- Université de Nantes, Nantes, France
- Institut de Cancérologie de l'Ouest, Nantes, France
| | - F Paris
- Centre de Recherche en Cancérologie Nantes Angers, Nantes, France
- Université de Nantes, Nantes, France
- Institut de Cancérologie de l'Ouest, Nantes, France
| | - F M Vallette
- Centre de Recherche en Cancérologie Nantes Angers, Nantes, France
- Université de Nantes, Nantes, France
- Institut de Cancérologie de l'Ouest, Nantes, France
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Noblet C, Chiavassa S, Paris F, Supiot S, Lisbona A, Delpon G. Underestimation of dose delivery in preclinical irradiation due to scattering conditions. Phys Med 2014; 30:63-8. [DOI: 10.1016/j.ejmp.2013.03.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 02/20/2013] [Accepted: 03/04/2013] [Indexed: 10/27/2022] Open
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Paris F, Lafargue A, Pecqueur C, Vallette F. OC-0050: Radiation-induced endothelial senescence is under the control of p53 and mitochondrial dysfunction. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30155-9] [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] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Dagostino M, Paroni G, Greco M, Paris F, Cascavilla L, Greco A. Epicardial fat and changes in cognitive function in elderly people. Eur Geriatr Med 2013. [DOI: 10.1016/j.eurger.2013.07.155] [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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Sultan C, Gaspari L, Paris F. Perturbateurs endocriniens environnementaux : action ubiquitaire. Rev Neurol (Paris) 2013. [DOI: 10.1016/j.neurol.2013.01.431] [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: 10/27/2022]
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Noblet C, Delpon G, Lisbona A, Supiot S, Suhard J, Paris F, Chiavassa S. PO-0778: A comparative study of detectors and media for relative dose measurements in kilovoltage small beams. Radiother Oncol 2013. [DOI: 10.1016/s0167-8140(15)33084-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: 11/28/2022]
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Hunfeld A, Segelcke D, Andriske M, Paris F, Zhu X, Lübbert H. Investigation of 5-HT2B receptor induced dural plasma protein extravasation in a mouse migraine model. J Headache Pain 2013. [PMCID: PMC3620435 DOI: 10.1186/1129-2377-14-s1-p77] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Hunfeld A, Segelcke D, Andriske M, Paris F, Zhu X, Lübbert H. Investigation of 5-HT2B receptor induced dural plasma protein extravasation in a mouse migraine model. J Headache Pain 2013. [DOI: 10.1186/1129-2377-1-s1-p77] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Kintzinger C, Demoor-Goldschmidt C, Abderrahmani R, Paris F, Supiot S. Toxicité rectale de la radiothérapie : signes cliniques, physiopathologie et prise en charge. Cancer Radiother 2012; 16:372-6. [DOI: 10.1016/j.canrad.2012.05.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Accepted: 05/28/2012] [Indexed: 12/29/2022]
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Herlin C, Bigorre M, Sultan C, Jeandel C, Paris F, Captier G. Gynécomastie de l’adolescent : prise en charge médico-chirurgicale. Arch Pediatr 2012. [DOI: 10.1016/s0929-693x(12)71142-9] [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] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Noblet C, Chiavassa S, Sarrut D, Paris F, Delpon G. Dosimetric impact of low energies (kV) in context of preclinical research in radiation therapy. Phys Med 2012. [DOI: 10.1016/j.ejmp.2012.08.030] [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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Paris F. SP-0508 BIOLOGICAL CONSIDERATION OF HIGH DOSE PER FRACTION. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)70847-2] [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: 10/28/2022]
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Gaspari L, Sampaio DR, Paris F, Audran F, Orsini M, Neto JB, Sultan C. High prevalence of micropenis in 2710 male newborns from an intensive-use pesticide area of Northeastern Brazil. ACTA ACUST UNITED AC 2012; 35:253-64. [DOI: 10.1111/j.1365-2605.2011.01241.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [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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Panza F, Frisardi V, Seripa D, Imbimbo BP, Sancarlo D, D'Onofrio G, Addante F, Paris F, Pilotto A, Solfrizzi V. Metabolic syndrome, mild cognitive impairment, and dementia. Curr Alzheimer Res 2011; 8:492-509. [PMID: 21605050 DOI: 10.2174/156720511796391818] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Accepted: 04/20/2011] [Indexed: 11/22/2022]
Abstract
At present, the search for preventive strategies for cognitive decline and dementia appears to be of crucial importance, given that the therapeutic options currently available have demonstrated limited efficacy. Cumulative epidemiological evidence suggested that vascular and vascular-related factors may be important for the development of age-related cognitive decline (ARCD), mild cognitive impairment (MCI), and cognitive decline of degenerative (Alzheimer's disease, AD) or vascular origin (vascular dementia, VaD). Among vascular-related factors, metabolic syndrome (MetS) has been associated with the reduced risk of predementia syndromes (ARCD and MCI), overall dementia, and VaD, but contrasting findings also exist on the possible role of MetS in AD. In the next future, trials could then be undertaken to determine if modifications of these risks including inflammation, another factor probably related to MetS, could lower risk of developing cognitive decline. If MetS is associated with increased risk of developing cognitive impairment, then early identification and treatment of these individuals at risk might offer new avenues for disease course modification. Future research aimed at identifying mechanisms that underlie comorbid associations will not only provide important insights into the causes and interdependencies of predementia and dementia syndromes, but will also inspire novel strategies for treating and preventing these disorders. At present, vascular risk factor management could be decisive in delaying the onset of dementia syndromes or in preventing the progression of predementia syndromes.
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Affiliation(s)
- F Panza
- Geriatric Unit and Gerontology-Geriatric Research Laboratory, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy.
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Maïmoun L, Coste O, Mariano-Goulart D, Galtier F, Mura T, Philibert P, Briot K, Paris F, Sultan C. In peripubertal girls, artistic gymnastics improves areal bone mineral density and femoral bone geometry without affecting serum OPG/RANKL levels. Osteoporos Int 2011; 22:3055-66. [PMID: 21359671 DOI: 10.1007/s00198-011-1541-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [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: 10/29/2010] [Accepted: 12/20/2010] [Indexed: 11/30/2022]
Abstract
UNLABELLED Peripubertal artistic gymnasts display elevated areal bone mineral density at various bone sites, despite delayed menarche and a high frequency of menstrual disorders, factors that may compromise bone health. The concomitant improvement in femoral bone geometry and strength suggested that this type of physical activity might have favourable clinical impact. INTRODUCTION The purpose of this study is to evaluate the effect of artistic gymnastics (GYM) on areal bone mineral density (aBMD), femoral bone geometry and bone markers and its relationship with the osteoprotegerin (OPG)/rank-ligand (RANKL) system in peripubertal girls. METHODS Forty-six girls (age 10-17.2 years) were recruited for this study: 23 elite athletes in the GYM group (training 12-30 h/week, age at start of training 5.3 years) and 23 age-matched (± 6 months; leisure physical activity ≤ 3 h/week) controls (CON). The aBMD at whole body, total proximal femur, lumbar spine, mid-radius and skull was determined using dual-X-ray absorptiometry. Hip structural analysis (HSA software) was applied at the femur to evaluate cross-sectional area (CSA, cm(2)), cross-sectional moment of inertia (CSMI, cm(4)), and the section modulus (Z, cm(3)) and buckling ratio at neck, intertrochanteric region and shaft. Markers of bone turnover and OPG/RANKL levels were also analysed. RESULTS GYM had higher (5.5-16.4%) non-adjusted aBMD and adjusted aBMD for age, fat-free soft tissue and fat mass at all bone sites, skull excepted and the difference increased with age. In the three femoral regions adjusted for body weight and height, CSA (12.5-18%), CSMI (14-18%), Z (15.5-18.6%) and mean cortical thickness (13.6-21%) were higher in GYM than CON, while the buckling ratio (21-27.1%) was lower. Bone markers decreased with age in both groups and GYM presented higher values than CON only in the postmenarchal period. A similar increase in RANKL with age without OPG variation was observed for both groups. CONCLUSION GYM is associated not only with an increase in aBMD but also an improvement in bone geometry associated with an increase in bone remodelling. These adaptations seem to be independent of the OPG/RANKL system.
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Affiliation(s)
- L Maïmoun
- Service d'Hormonologie, Hôpital Lapeyronie, CHU Montpellier et UMI, Montpellier, France
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Sultan C, Philibert P, Maimoun L, Kalfa N, Audran F, Servant N, Gaspari L, Paris F. Aménorrhées XY de l’adolescente. Arch Pediatr 2011. [DOI: 10.1016/s0929-693x(11)71051-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: 10/18/2022]
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Paris F, De Ferran K, Bhangoo A, Ten S, Lahlou N, Audran F, Servant N, Poulat F, Philibert P, Sultan C. Isolated ‘idiopathic’ micropenis: hidden genetic defects? ACTA ACUST UNITED AC 2011; 34:e518-25. [DOI: 10.1111/j.1365-2605.2010.01135.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
The injurious consequences of ionizing radiation (IR) to normal human cells and the acquired radioresistance of cancer cells represent limitations to cancer radiotherapy. IR induces DNA damage response pathways that orchestrate cell cycle arrest, DNA repair or apoptosis such that irradiated cells are either repaired or eliminated. Concomitantly and independent of DNA damage, IR activates acid sphingomyelinase (ASMase), which generates ceramide, thereby promoting radiation-induced apoptosis. However, ceramide can also be metabolized to sphingosine-1-phosphate (S1P), which acts paradoxically as a radioprotectant. Thus, sphingolipid metabolism represents a radiosensitivity pivot point, a notion supported by genetic evidence in IR-resistant cancer cells. S1P lyase (SPL) catalyzes the irreversible degradation of S1P in the final step of sphingolipid metabolism. We show that SPL modulates the kinetics of DNA repair, speed of recovery from G2 cell cycle arrest and the extent of apoptosis after IR. SPL acts through a novel feedback mechanism that amplifies stress-induced ceramide accumulation, and downregulation/inhibition of either SPL or ASMase prevents premature cell cycle progression and mitotic death. Further, oral administration of an SPL inhibitor to mice prolonged their survival after exposure to a lethal dose of total body IR. Our findings reveal SPL to be a regulator of ASMase, the G2 checkpoint and DNA repair and a novel target for radioprotection.
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Affiliation(s)
- A Kumar
- Center for Cancer Research, Children's Hospital Oakland Research Institute, 5700 Martin Luther King Jr. Way, Oakland, CA 94609-1673, USA
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Abstract
OBJECTIVE As the prognosis for final height is unfavorable for children with idiopathic short stature (ISS), we studied the pubertal growth dynamics in these children, which is a determinant factor in final height. SUBJECTS/METHODS In a retrospective cohort study, we analyzed the pubertal period, age of puberty and peripubertal growth in 50 children with ISS. RESULTS The onset of puberty occurred later. Growth rate tended to become increasingly subnormal in the prepubertal period and height was -2.45 SD at puberty onset. Growth reaccelerated at this point, which tended to correct the deviation from the mean height, but it was insufficient to obtain a normal final height. CONCLUSIONS The dynamics of growth in children with ISS showed a distinct pattern in the prepubertal and pubertal periods and puberty is significantly delayed in this population. These patterns could explain the unfavorable prognosis for children with ISS.
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Affiliation(s)
- Aude Mariani
- Service de Pédiatrie 1, Centre Hopitalo-Universitaire Arnaud de Villeneuve, Montpellier, France.
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Little MP, Tawn EJ, Tzoulaki I, Wakeford R, Hildebrandt G, Paris F, Tapio S, Elliott P. Review and meta-analysis of epidemiological associations between low/moderate doses of ionizing radiation and circulatory disease risks, and their possible mechanisms. Radiat Environ Biophys 2010; 49:139-53. [PMID: 19862545 PMCID: PMC3075616 DOI: 10.1007/s00411-009-0250-z] [Citation(s) in RCA: 104] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2009] [Accepted: 10/04/2009] [Indexed: 05/10/2023]
Abstract
Although the link between high doses of ionizing radiation and damage to the heart and coronary arteries has been well established for some time, the association between lower-dose exposures and late occurring cardiovascular disease has only recently begun to emerge, and is still controversial. In this paper, we extend an earlier systematic review by Little et al. on the epidemiological evidence for associations between low and moderate doses of ionizing radiation exposure and late occurring blood circulatory system disease. Excess relative risks per unit dose in epidemiological studies vary over at least two orders of magnitude, possibly a result of confounding and effect modification by well-known (but unobserved) risk factors, and there is statistically significant (p < 0.00001) heterogeneity between the risks. This heterogeneity is reduced, but remains significant, if adjustments are made for the effects of fractionated delivery or if there is stratification by endpoint (cardiovascular disease vs. stroke, morbidity vs. mortality). One possible biological mechanism is damage to endothelial cells and subsequent induction of an inflammatory response, although it seems unlikely that this would extend to low-dose and low-dose-rate exposure. A recent paper of Little et al. proposed an arguably more plausible mechanism for fractionated low-dose effects, based on monocyte cell killing in the intima. Although the predictions of the model are consistent with the epidemiological data, the experimental predictions made have yet to be tested. Further epidemiological and biological evidence will allow a firmer conclusion to be drawn.
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Affiliation(s)
- M P Little
- Department of Epidemiology and Public Health, Imperial College Faculty of Medicine, Norfolk Place, London, W2 1PG, UK.
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Kalfa N, Paris F, Soyer-Gobillard M, Galifer R, Daures J, Sultan C. 527 HIGH INCIDENCE OF HYPOSPADIAS IN GRAND-SONS OF WOMEN EXPOSED TO DIETHYSTILBESTROL (DES) DURING PREGNANCY: A NATIONWIDE MULTIGENERATIONAL STUDY. J Urol 2010. [DOI: 10.1016/j.juro.2010.02.726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Pilotto A, Franceschi M, D'Onofrio G, Bizzarro A, Mangialasche F, Cascavilla L, Paris F, Matera MG, Pilotto A, Daniele A, Mecocci P, Masullo C, Dallapiccola B, Seripa D. Effect of a CYP2D6 polymorphism on the efficacy of donepezil in patients with Alzheimer disease. Neurology 2009; 73:761-7. [PMID: 19738170 DOI: 10.1212/wnl.0b013e3181b6bbe3] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To evaluate the influence of the single nucleotide polymorphism rs1080985 in the cytochrome P450 2D6 (CYP2D6) gene on the efficacy of donepezil in patients with mild to moderate Alzheimer disease (AD). METHODS This was a multicenter, prospective cohort study of 127 white patients with AD according to the National Institute of Neurological and Communicative Disorders and Stroke-Alzheimer's Disease and Related Disorders Association Work Group criteria. Patients were treated with donepezil 5-10 mg/daily for 6 months. Cognitive and functional statuses were evaluated at baseline and at 6-month follow-up. Response to therapy was defined according to the National Institute for Health and Clinical Excellence criteria. Compliance and drug-related adverse events were also evaluated. The analyses identifying the CYP2D6 and APOE polymorphisms were performed in blinded fashion. RESULTS At 6-month follow-up, 69 of 115 patients (60%) were responders and 46 patients (40%) were nonresponders to donepezil treatment. A significantly higher frequency of patients with the G allele of rs1080985 was found in nonresponders than in responders (58.7% vs 34.8%, p = 0.013). Logistic regression analysis adjusted for age, sex, Mini-Mental State Examination score at baseline, and APOE demonstrated that patients with the G allele had a significantly higher risk of poor response to donepezil treatment (odds ratio 3.431, 95% confidence interval 1.490-7.901). CONCLUSIONS The single nucleotide polymorphism rs1080985 in the CYP2D6 gene may influence the clinical efficacy of donepezil in patients with mild to moderate Alzheimer disease (AD). The analysis of CYP2D6 genotypes may be useful in identifying subgroups of patients with AD who have different clinical responses to donepezil.
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Affiliation(s)
- Alberto Pilotto
- Geriatric Unit and Gerontology-Geriatrics Research Laboratory, Department of Medical Sciences, IRCCS Casa Sollievo della Sofferenza, Viale Cappuccini 1, 71013 San Giovanni Rotondo (FG), Italy.
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