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Girardi F, Matz M, Stiller C, You H, Marcos Gragera R, Valkov MY, Bulliard JL, De P, Morrison D, Wanner M, O'Brian DK, Saint-Jacques N, Coleman MP, Allemani C, Hamdi-Chérif M, Kara L, Meguenni K, Regagba D, Bayo S, Cheick Bougadari T, Manraj SS, Bendahhou K, Ladipo A, Ogunbiyi OJ, Somdyala NIM, Chaplin MA, Moreno F, Calabrano GH, Espinola SB, Carballo Quintero B, Fita R, Laspada WD, Ibañez SG, Lima CA, Da Costa AM, De Souza PCF, Chaves J, Laporte CA, Curado MP, de Oliveira JC, Veneziano CLA, Veneziano DB, Almeida ABM, Latorre MRDO, Rebelo MS, Santos MO, Azevedo e Silva G, Galaz JC, Aparicio Aravena M, Sanhueza Monsalve J, Herrmann DA, Vargas S, Herrera VM, Uribe CJ, Bravo LE, Garcia LS, Arias-Ortiz NE, Morantes D, Jurado DM, Yépez Chamorro MC, Delgado S, Ramirez M, Galán Alvarez YH, Torres P, Martínez-Reyes F, Jaramillo L, Quinto R, Castillo J, Mendoza M, Cueva P, Yépez JG, Bhakkan B, Deloumeaux J, Joachim C, Macni J, Carrillo R, Shalkow Klincovstein J, Rivera Gomez R, Perez P, Poquioma E, Tortolero-Luna G, Zavala D, Alonso R, Barrios E, Eckstrand A, Nikiforuk C, Woods RR, Noonan G, Turner D, Kumar E, Zhang B, Dowden JJ, Doyle GP, Saint-Jacques N, Walsh G, Anam A, De P, McClure CA, Vriends KA, Bertrand C, Ramanakumar AV, Davis L, Kozie S, Freeman T, George JT, Avila RM, O’Brien DK, Holt A, Almon L, Kwong S, Morris C, Rycroft R, Mueller L, Phillips CE, Brown H, Cromartie B, Ruterbusch J, Schwartz AG, Levin GM, Wohler B, Bayakly R, Ward KC, Gomez SL, McKinley M, Cress R, Davis J, Hernandez B, Johnson CJ, Morawski BM, Ruppert LP, Bentler S, Charlton ME, Huang B, Tucker TC, Deapen D, Liu L, Hsieh MC, Wu XC, Schwenn M, Stern K, Gershman ST, Knowlton RC, Alverson G, Weaver T, Desai J, Rogers DB, Jackson-Thompson J, Lemons D, Zimmerman HJ, Hood M, Roberts-Johnson J, Hammond W, Rees JR, Pawlish KS, Stroup A, Key C, Wiggins C, Kahn AR, Schymura MJ, Radhakrishnan S, Rao C, Giljahn LK, Slocumb RM, Dabbs C, Espinoza RE, Aird KG, Beran T, Rubertone JJ, Slack SJ, Oh J, Janes TA, Schwartz SM, Chiodini SC, Hurley DM, Whiteside MA, Rai S, Williams MA, Herget K, Sweeney C, Kachajian J, Keitheri Cheteri MB, Migliore Santiago P, Blankenship SE, Conaway JL, Borchers R, Malicki R, Espinoza J, Grandpre J, Weir HK, Wilson R, Edwards BK, Mariotto A, Rodriguez-Galindo C, Wang N, Yang L, Chen JS, Zhou Y, He YT, Song GH, Gu XP, Mei D, Mu HJ, Ge HM, Wu TH, Li YY, Zhao DL, Jin F, Zhang JH, Zhu FD, Junhua Q, Yang YL, Jiang CX, Biao W, Wang J, Li QL, Yi H, Zhou X, Dong J, Li W, Fu FX, Liu SZ, Chen JG, Zhu J, Li YH, Lu YQ, Fan M, Huang SQ, Guo GP, Zhaolai H, Wei K, Chen WQ, Wei W, Zeng H, Demetriou AV, Mang WK, Ngan KC, Kataki AC, Krishnatreya M, Jayalekshmi PA, Sebastian P, George PS, Mathew A, Nandakumar A, Malekzadeh R, Roshandel G, Keinan-Boker L, Silverman BG, Ito H, Koyanagi Y, Sato M, Tobori F, Nakata I, Teramoto N, Hattori M, Kaizaki Y, Moki F, Sugiyama H, Utada M, Nishimura M, Yoshida K, Kurosawa K, Nemoto Y, Narimatsu H, Sakaguchi M, Kanemura S, Naito M, Narisawa R, Miyashiro I, Nakata K, Mori D, Yoshitake M, Oki I, Fukushima N, Shibata A, Iwasa K, Ono C, Matsuda T, Nimri O, Jung KW, Won YJ, Alawadhi E, Elbasmi A, Ab Manan A, Adam F, Nansalmaa E, Tudev U, Ochir C, Al Khater AM, El Mistiri MM, Lim GH, Teo YY, Chiang CJ, Lee WC, Buasom R, Sangrajrang S, Suwanrungruang K, Vatanasapt P, Daoprasert K, Pongnikorn D, Leklob A, Sangkitipaiboon S, Geater SL, Sriplung H, Ceylan O, Kög I, Dirican O, Köse T, Gurbuz T, Karaşahin FE, Turhan D, Aktaş U, Halat Y, Eser S, Yakut CI, Altinisik M, Cavusoglu Y, Türkköylü A, Üçüncü N, Hackl M, Zborovskaya AA, Aleinikova OV, Henau K, Van Eycken L, Atanasov TY, Valerianova Z, Šekerija M, Dušek L, Zvolský M, Steinrud Mørch L, Storm H, Wessel Skovlund C, Innos K, Mägi M, Malila N, Seppä K, Jégu J, Velten M, Cornet E, Troussard X, Bouvier AM, Guizard AV, Bouvier V, Launoy G, Dabakuyo Yonli S, Poillot ML, Maynadié M, Mounier M, Vaconnet L, Woronoff AS, Daoulas M, Robaszkiewicz M, Clavel J, Poulalhon C, Desandes E, Lacour B, Baldi I, Amadeo B, Coureau G, Monnereau A, Orazio S, Audoin M, D’Almeida TC, Boyer S, Hammas K, Trétarre B, Colonna M, Delafosse P, Plouvier S, Cowppli-Bony A, Molinié F, Bara S, Ganry O, Lapôtre-Ledoux B, Daubisse-Marliac L, Bossard N, Uhry Z, Estève J, Stabenow R, Wilsdorf-Köhler H, Eberle A, Luttmann S, Löhden I, Nennecke AL, Kieschke J, Sirri E, Justenhoven C, Reinwald F, Holleczek B, Eisemann N, Katalinic A, Asquez RA, Kumar V, Petridou E, Ólafsdóttir EJ, Tryggvadóttir L, Murray DE, Walsh PM, Sundseth H, Harney M, Mazzoleni G, Vittadello F, Coviello E, Cuccaro F, Galasso R, Sampietro G, Giacomin A, Magoni M, Ardizzone A, D’Argenzio A, Di Prima AA, Ippolito A, Lavecchia AM, Sutera Sardo A, Gola G, Ballotari P, Giacomazzi E, Ferretti S, Dal Maso L, Serraino D, Celesia MV, Filiberti RA, Pannozzo F, Melcarne A, Quarta F, Andreano A, Russo AG, Carrozzi G, Cirilli C, Cavalieri d’Oro L, Rognoni M, Fusco M, Vitale MF, Usala M, Cusimano R, Mazzucco W, Michiara M, Sgargi P, Boschetti L, Marguati S, Chiaranda G, Seghini P, Maule MM, Merletti F, Spata E, Tumino R, Mancuso P, Cassetti T, Sassatelli R, Falcini F, Giorgetti S, Caiazzo AL, Cavallo R, Piras D, Bella F, Madeddu A, Fanetti AC, Maspero S, Carone S, Mincuzzi A, Candela G, Scuderi T, Gentilini MA, Rizzello R, Rosso S, Caldarella A, Intrieri T, Bianconi F, Contiero P, Tagliabue G, Rugge M, Zorzi M, Beggiato S, Brustolin A, Gatta G, De Angelis R, Vicentini M, Zanetti R, Stracci F, Maurina A, Oniščuka M, Mousavi M, Steponaviciene L, Vincerževskienė I, Azzopardi MJ, Calleja N, Siesling S, Visser O, Johannesen TB, Larønningen S, Trojanowski M, Macek P, Mierzwa T, Rachtan J, Rosińska A, Kępska K, Kościańska B, Barna K, Sulkowska U, Gebauer T, Łapińska JB, Wójcik-Tomaszewska J, Motnyk M, Patro A, Gos A, Sikorska K, Bielska-Lasota M, Didkowska JA, Wojciechowska U, Forjaz de Lacerda G, Rego RA, Carrito B, Pais A, Bento MJ, Rodrigues J, Lourenço A, Mayer-da-Silva A, Coza D, Todescu AI, Valkov MY, Gusenkova L, Lazarevich O, Prudnikova O, Vjushkov DM, Egorova A, Orlov A, Pikalova LV, Zhuikova LD, Adamcik J, Safaei Diba C, Zadnik V, Žagar T, De-La-Cruz M, Lopez-de-Munain A, Aleman A, Rojas D, Chillarón RJ, Navarro AIM, Marcos-Gragera R, Puigdemont M, Rodríguez-Barranco M, Sánchez Perez MJ, Franch Sureda P, Ramos Montserrat M, Chirlaque López MD, Sánchez Gil A, Ardanaz E, Guevara M, Cañete-Nieto A, Peris-Bonet R, Carulla M, Galceran J, Almela F, Sabater C, Khan S, Pettersson D, Dickman P, Staehelin K, Struchen B, Egger Hayoz C, Rapiti E, Schaffar R, Went P, Mousavi SM, Bulliard JL, Maspoli-Conconi M, Kuehni CE, Redmond SM, Bordoni A, Ortelli L, Chiolero A, Konzelmann I, Rohrmann S, Wanner M, Broggio J, Rashbass J, Stiller C, Fitzpatrick D, Gavin A, Morrison DS, Thomson CS, Greene G, Huws DW, Grayson M, Rawcliffe H, Allemani C, Coleman MP, Di Carlo V, Girardi F, Matz M, Minicozzi P, Sanz N, Ssenyonga N, James D, Stephens R, Chalker E, Smith M, Gugusheff J, You H, Qin Li S, Dugdale S, Moore J, Philpot S, Pfeiffer R, Thomas H, Silva Ragaini B, Venn AJ, Evans SM, Te Marvelde L, Savietto V, Trevithick R, Aitken J, Currow D, Fowler C, Lewis C. Global survival trends for brain tumors, by histology: analysis of individual records for 556,237 adults diagnosed in 59 countries during 2000-2014 (CONCORD-3). Neuro Oncol 2023; 25:580-592. [PMID: 36355361 PMCID: PMC10013649 DOI: 10.1093/neuonc/noac217] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Survival is a key metric of the effectiveness of a health system in managing cancer. We set out to provide a comprehensive examination of worldwide variation and trends in survival from brain tumors in adults, by histology. METHODS We analyzed individual data for adults (15-99 years) diagnosed with a brain tumor (ICD-O-3 topography code C71) during 2000-2014, regardless of tumor behavior. Data underwent a 3-phase quality control as part of CONCORD-3. We estimated net survival for 11 histology groups, using the unbiased nonparametric Pohar Perme estimator. RESULTS The study included 556,237 adults. In 2010-2014, the global range in age-standardized 5-year net survival for the most common sub-types was broad: in the range 20%-38% for diffuse and anaplastic astrocytoma, from 4% to 17% for glioblastoma, and between 32% and 69% for oligodendroglioma. For patients with glioblastoma, the largest gains in survival occurred between 2000-2004 and 2005-2009. These improvements were more noticeable among adults diagnosed aged 40-70 years than among younger adults. CONCLUSIONS To the best of our knowledge, this study provides the largest account to date of global trends in population-based survival for brain tumors by histology in adults. We have highlighted remarkable gains in 5-year survival from glioblastoma since 2005, providing large-scale empirical evidence on the uptake of chemoradiation at population level. Worldwide, survival improvements have been extensive, but some countries still lag behind. Our findings may help clinicians involved in national and international tumor pathway boards to promote initiatives aimed at more extensive implementation of clinical guidelines.
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Affiliation(s)
- Fabio Girardi
- Cancer Survival Group, London School of Hygiene and Tropical Medicine, London, UK.,Cancer Division, University College London Hospitals NHS Foundation Trust, London, UK.,Division of Medical Oncology 2, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Melissa Matz
- Cancer Survival Group, London School of Hygiene and Tropical Medicine, London, UK
| | - Charles Stiller
- National Cancer Registration and Analysis Service, Public Health England, London, UK
| | - Hui You
- Cancer Information Analysis Unit, Cancer Institute NSW, St Leonards, New South Wales, Australia
| | - Rafael Marcos Gragera
- Epidemiology Unit and Girona Cancer Registry, Catalan Institute of Oncology, Girona, Spain
| | - Mikhail Y Valkov
- Department of Radiology, Radiotherapy and Oncology, Northern State Medical University, Arkhangelsk, Russia
| | - Jean-Luc Bulliard
- Centre for Primary Care and Public Health (Unisanté), University of Lausanne, Lausanne, Switzerland.,Neuchâtel and Jura Tumour Registry, Neuchâtel, Switzerland
| | - Prithwish De
- Surveillance and Cancer Registry, and Research Office, Clinical Institutes and Quality Programs, Ontario Health, Toronto, Ontario, Canada
| | - David Morrison
- Scottish Cancer Registry, Public Health Scotland, Edinburgh, UK
| | - Miriam Wanner
- Cancer Registry Zürich, Zug, Schaffhausen and Schwyz, University Hospital Zürich, Zürich, Switzerland
| | - David K O'Brian
- Alaska Cancer Registry, Alaska Department of Health and Social Services, Anchorage, Alaska, USA
| | - Nathalie Saint-Jacques
- Department of Medicine and Community Health and Epidemiology, Centre for Clinical Research, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Michel P Coleman
- Cancer Survival Group, London School of Hygiene and Tropical Medicine, London, UK.,Cancer Division, University College London Hospitals NHS Foundation Trust, London, UK
| | - Claudia Allemani
- Cancer Survival Group, London School of Hygiene and Tropical Medicine, London, UK
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Vargas S, Filipowicz A, Keel M, Zhou H, Spandau D, Turner M, Foley J. 811 Nipple fibroblasts express low levels of fibrotic inducer DPP4 and facilitate wound healing with minimal scarring. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.826] [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: 10/24/2022]
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Mao S, Li D, Gao Y, Flores F, Bever T, Yoon A, Hosseini H, Yang R, Vargas S, Kaur Y, Hamal S, Budoff M. Screening Patients At Risk Of Age-related Fragility Vertebral Fracture In The General Population Using Multiple-row Detector Quantitative Computed Tomography With Chest Or Heart Scan. J Cardiovasc Comput Tomogr 2020. [DOI: 10.1016/j.jcct.2020.06.100] [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: 10/23/2022]
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Brosseau C, Danger R, Durand M, Durand E, Foureau A, Lacoste P, Tissot A, Roux A, Reynaud-Gaubert M, Kessler R, Mussot S, Dromer C, Brugière O, Mornex JF, Guillemain R, Claustre J, Magnan A, Brouard S, Velly J, Rozé H, Blanchard E, Antoine M, Cappello M, Ruiz M, Sokolow Y, Vanden Eynden F, Van Nooten G, Barvais L, Berré J, Brimioulle S, De Backer D, Créteur J, Engelman E, Huybrechts I, Ickx B, Preiser T, Tuna T, Van Obberghe L, Vancutsem N, Vincent J, De Vuyst P, Etienne I, Féry F, Jacobs F, Knoop C, Vachiéry J, Van den Borne P, Wellemans I, Amand G, Collignon L, Giroux M, Angelescu D, Chavanon O, Hacini R, Martin C, Pirvu A, Porcu P, Albaladejo P, Allègre C, Bataillard A, Bedague D, Briot E, Casez‐Brasseur M, Colas D, Dessertaine G, Francony G, Hebrard A, Marino M, Protar D, Rehm D, Robin S, Rossi‐Blancher M, Augier C, Bedouch P, Boignard A, Bouvaist H, Briault A, Camara B, Chanoine S, Dubuc M, Quétant S, Maurizi J, Pavèse P, Pison C, Saint‐Raymond C, Wion N, Chérion C, Grima R, Jegaden O, Maury J, Tronc F, Flamens C, Paulus S, Philit F, Senechal A, Glérant J, Turquier S, Gamondes D, Chalabresse L, Thivolet‐Bejui F, Barnel C, Dubois C, Tiberghien A, Pimpec‐Barthes F, Bel A, Mordant P, Achouh P, Boussaud V, Méléard D, Bricourt M, Cholley B, Pezella V, Brioude G, D'Journo X, Doddoli C, Thomas P, Trousse D, Dizier S, Leone M, Papazian L, Bregeon F, Coltey B, Dufeu N, Dutau H, Garcia S, Gaubert J, Gomez C, Laroumagne S, Mouton G, Nieves A, Picard C, Rolain J, Sampol E, Secq V, Perigaud C, Roussel J, Senage T, Mugniot A, Danner I, Haloun A, Abbes S, Bry C, Blanc F, Lepoivre T, Botturi‐Cavaillès K, Loy J, Bernard M, Godard E, Royer P, Henrio K, Dartevelle P, Fabre D, Fadel E, Mercier O, Stephan F, Viard P, Cerrina J, Dorfmuller P, Feuillet S, Ghigna M, Hervén P, Le Roy Ladurie F, Le Pavec J, Thomas de Montpreville V, Lamrani L, Castier Y, Mordant P, Cerceau P, Augustin P, Jean‐Baptiste S, Boudinet S, Montravers P, Dauriat G, Jébrak G, Mal H, Marceau A, Métivier A, Thabut G, Lhuillier E, Dupin C, Bunel V, Falcoz P, Massard G, Santelmo N, Ajob G, Collange O, Helms O, Hentz J, Roche A, Bakouboula B, Degot T, Dory A, Hirschi S, Ohlmann‐Caillard S, Kessler L, Schuller A, Bennedif K, Vargas S, Bonnette P, Chapelier A, Puyo P, Sage E, Bresson J, Caille V, Cerf C, Devaquet J, Dumans‐Nizard V, Felten M, Fischler M, Si Larbi A, Leguen M, Ley L, Liu N, Trebbia G, De Miranda S, Douvry B, Gonin F, Grenet D, Hamid A, Neveu H, Parquin F, Picard C, Stern M, Bouillioud F, Cahen P, Colombat M, Dautricourt C, Delahousse M, D'Urso B, Gravisse J, Guth A, Hillaire S, Honderlick P, Lequintrec M, Longchampt E, Mellot F, Scherrer A, Temagoult L, Tricot L, Vasse M, Veyrie C, Zemoura L, Dahan M, Murris M, Benahoua H, Berjaud J, Le Borgne Krams A, Crognier L, Brouchet L, Mathe O, Didier A, Krueger T, Ris H, Gonzalez M, Aubert J, Nicod L, Marsland B, Berutto T, Rochat T, Soccal P, Jolliet P, Koutsokera A, Marcucci C, Manuel O, Bernasconi E, Chollet M, Gronchi F, Courbon C, Hillinger S, Inci I, Kestenholz P, Weder W, Schuepbach R, Zalunardo M, Benden C, Buergi U, Huber L, Isenring B, Schuurmans M, Gaspert A, Holzmann D, Müller N, Schmid C, Vrugt B, Rechsteiner T, Fritz A, Maier D, Deplanche K, Koubi D, Ernst F, Paprotka T, Schmitt M, Wahl B, Boissel J, Olivera‐Botello G, Trocmé C, Toussaint B, Bourgoin‐Voillard S, Séve M, Benmerad M, Siroux V, Slama R, Auffray C, Charron D, Lefaudeux D, Pellet J. Blood CD9 + B cell, a biomarker of bronchiolitis obliterans syndrome after lung transplantation. Am J Transplant 2019; 19:3162-3175. [PMID: 31305014 DOI: 10.1111/ajt.15532] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 06/12/2019] [Accepted: 07/07/2019] [Indexed: 01/25/2023]
Abstract
Bronchiolitis obliterans syndrome is the main limitation for long-term survival after lung transplantation. Some specific B cell populations are associated with long-term graft acceptance. We aimed to monitor the B cell profile during early development of bronchiolitis obliterans syndrome after lung transplantation. The B cell longitudinal profile was analyzed in peripheral blood mononuclear cells from patients with bronchiolitis obliterans syndrome and patients who remained stable over 3 years of follow-up. CD24hi CD38hi transitional B cells were increased in stable patients only, and reached a peak 24 months after transplantation, whereas they remained unchanged in patients who developed a bronchiolitis obliterans syndrome. These CD24hi CD38hi transitional B cells specifically secrete IL-10 and express CD9. Thus, patients with a total CD9+ B cell frequency below 6.6% displayed significantly higher incidence of bronchiolitis obliterans syndrome (AUC = 0.836, PPV = 0.75, NPV = 1). These data are the first to associate IL-10-secreting CD24hi CD38hi transitional B cells expressing CD9 with better allograft outcome in lung transplant recipients. CD9-expressing B cells appear as a contributor to a favorable environment essential for the maintenance of long-term stable graft function and as a new predictive biomarker of bronchiolitis obliterans syndrome-free survival.
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Affiliation(s)
- Carole Brosseau
- Centre de Recherche en Transplantation et Immunologie, UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France.,Institut du thorax, Inserm UMR 1087, CNRS, UMR 6291, Université de Nantes, Nantes, France.,Institut du thorax, CHU de Nantes, Nantes, France
| | - Richard Danger
- Centre de Recherche en Transplantation et Immunologie, UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France
| | - Maxim Durand
- Centre de Recherche en Transplantation et Immunologie, UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France.,Faculté de Médecine, Université de Nantes, Nantes, France
| | - Eugénie Durand
- Centre de Recherche en Transplantation et Immunologie, UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France
| | - Aurore Foureau
- Institut du thorax, Inserm UMR 1087, CNRS, UMR 6291, Université de Nantes, Nantes, France.,Institut du thorax, CHU de Nantes, Nantes, France
| | - Philippe Lacoste
- Institut du thorax, Inserm UMR 1087, CNRS, UMR 6291, Université de Nantes, Nantes, France.,Institut du thorax, CHU de Nantes, Nantes, France
| | - Adrien Tissot
- Centre de Recherche en Transplantation et Immunologie, UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France.,Institut du thorax, Inserm UMR 1087, CNRS, UMR 6291, Université de Nantes, Nantes, France.,Institut du thorax, CHU de Nantes, Nantes, France.,Faculté de Médecine, Université de Nantes, Nantes, France
| | - Antoine Roux
- Hôpital Foch, Suresnes, France.,Université Versailles Saint-Quentin-en-Yvelines, UPRES EA220, Versailles, France
| | | | | | - Sacha Mussot
- Centre Chirurgical Marie Lannelongue, Service de Chirurgie Thoracique, Vasculaire et Transplantation Cardiopulmonaire, Le Plessis Robinson, France
| | | | - Olivier Brugière
- Hôpital Bichat, Service de Pneumologie et Transplantation Pulmonaire, Paris, France
| | | | | | - Johanna Claustre
- Clinique Universitaire Pneumologie, Pôle Thorax et Vaisseaux, CHU Grenoble Alpes, Université Grenoble Alpes, Inserm U1055, Grenoble, France
| | - Antoine Magnan
- Institut du thorax, Inserm UMR 1087, CNRS, UMR 6291, Université de Nantes, Nantes, France.,Institut du thorax, CHU de Nantes, Nantes, France
| | - Sophie Brouard
- Centre de Recherche en Transplantation et Immunologie, UMR 1064, INSERM, Université de Nantes, Nantes, France.,Institut de Transplantation Urologie Néphrologie (ITUN), CHU Nantes, Nantes, France.,Centre d'Investigation Clinique (CIC) Biothérapie, CHU Nantes, Nantes, France
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Manzano S, Vargas S, Casaubon G, González Á. Evaluation of an active yeast propagation system on fermentation traits and quality of C.V. Carmenère wine. BIO Web Conf 2019. [DOI: 10.1051/bioconf/20191202009] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Active dry yeasts (ADY, Saccharomyces cerevisiae) are widely used in oenology due to their potential benefits on the control of fermentation and quality reproducibility among other aspects. On the other hand, yeast propagation systems, so called Active Yeast Systems (AYS), can be useful to optimize the alcoholic fermentation (AF) initial lag phase and reduce production costs. The objective of this work was to determine the predominance of an ADY strain propagated by AYS and the impact of this inoculum on cv. Carmenère wine quality. Lalvin ICV D21 ADY strain was inoculate according to the protocol recommended by the manufacturer (T0), and in parallel, it was propagate by the AYS and then used as inoculum (T1). Yeast strain predominance analyzed by restriction fragment length polymorphism (RFLP) technique indicates that nine (out of 9) yeast colonies obtained from a single sample of the ADY, show the same electrophoretic pattern when compared to the ADY. The results show limited significant differences for the fermentation speed and the yeast cell counting. The result of the physicochemical analysis of the musts and resulting wines showed no significant differences between treatments. A triangular test showed no significant sensory differences between wines
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Almeida T, Ehuletche MG, Perna A, Bevilacqua J, Dubrovsky A, Franca M, Vargas S, Hegde M, Claeys K, Straub V, Daba N, Faria R, Loaeza A, Luccerini V, Periquet M, Sparks S, Thibault N, Araujo R. NEXT GENERATION SEQUENCING AND EXPERIMENTAL MYOLOGY. Neuromuscul Disord 2018. [DOI: 10.1016/j.nmd.2018.06.424] [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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Correa-Rodríguez M, Carrillo-Ávila JA, Schmidt-RioValle J, González-Jiménez E, Vargas S, Martín J, Rueda-Medina B. Genetic association analysis of vitamin D receptor gene polymorphisms and obesity-related phenotypes. Gene 2018. [PMID: 29032145 DOI: 10.1016/j.gene.2017.10.029.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Abstract
Vitamin D has been established as a key factor in the development of obesity through the vitamin D receptor (VDR). The aim of this study was to investigate the contribution of the VDR gene to obesity-related phenotypes in a population of Caucasian young adults. The study population consisted of 701 healthy Spanish young adults (mean age 20.41±2.48). Three single-nucleotide polymorphisms (SNPs) of VDR (TaqI, BsmI and FokI) were selected as genetic markers. Body composition measurements including weight, body mass index (BMI), fat mass (FM), percentage of fat mass (PFM), fat-free mass (FFM) and visceral fat level (VFL) were analysed. Differences in obesity traits across the genotypes were determined using analysis of covariance (ANCOVA). The FokI polymorphism showed a significant association with PFM across the whole population after adjusting for age and sex (p=0.022). Age-adjusted analysis revealed an association between body weight and the TaqI and BsmI SNPs in males (p=0.033 and p=0.028, respectively). However, these positive findings did not remain significant after applying the Bonferroni correction for multiple testing. Our findings suggest that VDR genetic variants are unlikely to play a major role in obesity-related phenotypes in a population of Caucasian young adults.
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Affiliation(s)
- M Correa-Rodríguez
- Faculty of Health Sciences, University of Granada (Spain), Av. Ilustración 60, 18016 Granada, Spain.
| | - J A Carrillo-Ávila
- Andalusian Public Health System Biobank, Av. del Conocimiento s/n, 18016, Granada, Spain
| | - J Schmidt-RioValle
- Faculty of Health Sciences, University of Granada (Spain), Av. Ilustración 60, 18016 Granada, Spain
| | - E González-Jiménez
- Faculty of Health Sciences, University of Granada (Spain), Av. Ilustración 60, 18016 Granada, Spain
| | - S Vargas
- Instituto de Parasitología y Biomedicina López-Neyra, IPBLN-CSIC, 18100, Spain
| | - J Martín
- Instituto de Parasitología y Biomedicina López-Neyra, IPBLN-CSIC, 18100, Spain
| | - B Rueda-Medina
- Faculty of Health Sciences, University of Granada (Spain), Av. Ilustración 60, 18016 Granada, Spain
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Matz M, Coleman MP, Sant M, Chirlaque MD, Visser O, Gore M, Allemani C, Bouzbid S, Hamdi-Chérif M, Zaidi Z, Bah E, Swaminathan R, Nortje S, El Mistiri M, Bayo S, Malle B, Manraj S, Sewpaul-Sungkur R, Fabowale A, Ogunbiyi O, Bradshaw D, Somdyala N, Stefan D, Abdel-Rahman M, Jaidane L, Mokni M, Kumcher I, Moreno F, González M, Laura E, Espinola S, Calabrano G, Carballo Quintero B, Fita R, Garcilazo D, Giacciani P, Diumenjo M, Laspada W, Green M, Lanza M, Ibañez S, Lima C, Lobo de Oliveira E, Daniel C, Scandiuzzi C, De Souza P, Melo C, Del Pino K, Laporte C, Curado M, de Oliveira J, Veneziano C, Veneziano D, Latorre M, Tanaka L, Azevedo e Silva G, Galaz J, Moya J, Herrmann D, Vargas S, Herrera V, Uribe C, Bravo L, Arias-Ortiz N, Jurado D, Yépez M, Galán Y, Torres P, Martínez-Reyes F, Pérez-Meza M, Jaramillo L, Quinto R, Cueva P, Yépez J, Torres-Cintrón C, Tortolero-Luna G, Alonso R, Barrios E, Nikiforuk C, Shack L, Coldman A, Woods R, Noonan G, Turner D, Kumar E, Zhang B, McCrate F, Ryan S, Hannah H, Dewar R, MacIntyre M, Lalany A, Ruta M, Marrett L, Nishri D, McClure C, Vriends K, Bertrand C, Louchini R, Robb K, Stuart-Panko H, Demers S, Wright S, George J, Shen X, Brockhouse J, O'Brien D, Ward K, Almon L, Bates J, Rycroft R, Mueller L, Phillips C, Brown H, Cromartie B, Schwartz A, Vigneau F, MacKinnon J, Wohler B, Bayakly A, Clarke C, Glaser S, West D, Green M, Hernandez B, Johnson C, Jozwik D, Charlton M, Lynch C, Huang B, Tucker T, Deapen D, Liu L, Hsieh M, Wu X, Stern K, Gershman S, Knowlton R, Alverson J, Copeland G, Rogers D, Lemons D, Williamson L, Hood M, Hosain G, Rees J, Pawlish K, Stroup A, Key C, Wiggins C, Kahn A, Schymura M, Leung G, Rao C, Giljahn L, Warther B, Pate A, Patil M, Schubert S, Rubertone J, Slack S, Fulton J, Rousseau D, Janes T, Schwartz S, Bolick S, Hurley D, Richards J, Whiteside M, Nogueira L, Herget K, Sweeney C, Martin J, Wang S, Harrelson D, Keitheri Cheteri M, Farley S, Hudson A, Borchers R, Stephenson L, Espinoza J, Weir H, Edwards B, Wang N, Yang L, Chen J, Song G, Gu X, Zhang P, Ge H, Zhao D, Zhang J, Zhu F, Tang J, Shen Y, Wang J, Li Q, Yang X, Dong J, Li W, Cheng L, Chen J, Huang Q, Huang S, Guo G, Wei K, Chen W, Zeng H, Demetriou A, Pavlou P, Mang W, Ngan K, Swaminathan R, Kataki A, Krishnatreya M, Jayalekshmi P, Sebastian P, Sapkota S, Verma Y, Nandakumar A, Suzanna E, Keinan-Boker L, Silverman B, Ito H, Nakagawa H, Hattori M, Kaizaki Y, Sugiyama H, Utada M, Katayama K, Narimatsu H, Kanemura S, Koike T, Miyashiro I, Yoshii M, Oki I, Shibata A, Matsuda T, Nimri O, Ab Manan A, Bhoo-Pathy N, Tuvshingerel S, Chimedsuren O, Al Khater A, El Mistiri M, Al-Eid H, Jung K, Won Y, Chiang C, Lai M, Suwanrungruang K, Wiangnon S, Daoprasert K, Pongnikorn D, Geater S, Sriplung H, Eser S, Yakut C, Hackl M, Mühlböck H, Oberaigner W, Zborovskaya A, Aleinikova O, Henau K, Van Eycken L, Dimitrova N, Valerianova Z, Šekerija M, Zvolský M, Engholm G, Storm H, Innos K, Mägi M, Malila N, Seppä K, Jégu J, Velten M, Cornet E, Troussard X, Bouvier A, Faivre J, Guizard A, Bouvier V, Launoy G, Arveux P, Maynadié M, Mounier M, Fournier E, Woronoff A, Daoulas M, Clavel J, Le Guyader-Peyrou S, Monnereau A, Trétarre B, Colonna M, Cowppli-Bony A, Molinié F, Bara S, Degré D, Ganry O, Lapôtre-Ledoux B, Grosclaude P, Estève J, Bray F, Piñeros M, Sassi F, Stabenow R, Eberle A, Erb C, Nennecke A, Kieschke J, Sirri E, Kajueter H, Emrich K, Zeissig S, Holleczek B, Eisemann N, Katalinic A, Brenner H, Asquez R, Kumar V, Ólafsdóttir E, Tryggvadóttir L, Comber H, Walsh P, Sundseth H, Devigili E, Mazzoleni G, Giacomin A, Bella F, Castaing M, Sutera A, Gola G, Ferretti S, Serraino D, Zucchetto A, Lillini R, Vercelli M, Busco S, Pannozzo F, Vitarelli S, Ricci P, Pascucci C, Autelitano M, Cirilli C, Federico M, Fusco M, Vitale M, Usala M, Cusimano R, Mazzucco W, Michiara M, Sgargi P, Maule M, Sacerdote C, Tumino R, Di Felice E, Vicentini M, Falcini F, Cremone L, Budroni M, Cesaraccio R, Contrino M, Tisano F, Fanetti A, Maspero S, Candela G, Scuderi T, Gentilini M, Piffer S, Rosso S, Sacchetto L, Caldarella A, La Rosa F, Stracci F, Contiero P, Tagliabue G, Dei Tos A, Zorzi M, Zanetti R, Baili P, Berrino F, Gatta G, Sant M, Capocaccia R, De Angelis R, Liepina E, Maurina A, Smailyte G, Agius D, Calleja N, Siesling S, Visser O, Larønningen S, Møller B, Dyzmann-Sroka A, Trojanowski M, Góźdż S, Mężyk R, Grądalska-Lampart M, Radziszewska A, Didkowska J, Wojciechowska U, Błaszczyk J, Kępska K, Bielska-Lasota M, Kwiatkowska K, Forjaz G, Rego R, Bastos J, Silva M, Antunes L, Bento M, Mayer-da-Silva A, Miranda A, Coza D, Todescu A, Valkov M, Adamcik J, Safaei Diba C, Primic-Žakelj M, Žagar T, Stare J, Almar E, Mateos A, Quirós J, Bidaurrazaga J, Larrañaga N, Díaz García J, Marcos A, Marcos-Gragera R, Vilardell Gil M, Molina E, Sánchez M, Franch Sureda P, Ramos Montserrat M, Chirlaque M, Navarro C, Ardanaz E, Moreno-Iribas C, Fernández-Delgado R, Peris-Bonet R, Galceran J, Khan S, Lambe M, Camey B, Bouchardy C, Usel M, Ess S, Herrmann C, Bulliard J, Maspoli-Conconi M, Frick H, Kuehni C, Schindler M, Bordoni A, Spitale A, Chiolero A, Konzelmann I, Dehler S, Matthes K, Rashbass J, Stiller C, Fitzpatrick D, Gavin A, Bannon F, Black R, Brewster D, Huws D, White C, Finan P, Allemani C, Bonaventure A, Carreira H, Coleman M, Di Carlo V, Harewood R, Liu K, Matz M, Montel L, Nikšić M, Rachet B, Sanz N, Spika D, Stephens R, Peake M, Chalker E, Newman L, Baker D, Soeberg M, Aitken J, Scott C, Stokes B, Venn A, Farrugia H, Giles G, Threlfall T, Currow D, You H, Hendrix J, Lewis C. Erratum to “The histology of ovarian cancer: Worldwide distribution and implications for international survival comparisons (CONCORD-2)” [Gynecol. Oncol. 144 (2017) 405–413]. Gynecol Oncol 2017; 147:726. [DOI: 10.1016/j.ygyno.2017.06.032] [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] [Indexed: 11/17/2022]
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Correa-Rodríguez M, Carrillo-Ávila JA, Schmidt-RioValle J, González-Jiménez E, Vargas S, Martín J, Rueda-Medina B. Genetic association analysis of vitamin D receptor gene polymorphisms and obesity-related phenotypes. Gene 2017; 640:51-56. [PMID: 29032145 DOI: 10.1016/j.gene.2017.10.029] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 10/05/2017] [Accepted: 10/10/2017] [Indexed: 01/13/2023]
Abstract
Vitamin D has been established as a key factor in the development of obesity through the vitamin D receptor (VDR). The aim of this study was to investigate the contribution of the VDR gene to obesity-related phenotypes in a population of Caucasian young adults. The study population consisted of 701 healthy Spanish young adults (mean age 20.41±2.48). Three single-nucleotide polymorphisms (SNPs) of VDR (TaqI, BsmI and FokI) were selected as genetic markers. Body composition measurements including weight, body mass index (BMI), fat mass (FM), percentage of fat mass (PFM), fat-free mass (FFM) and visceral fat level (VFL) were analysed. Differences in obesity traits across the genotypes were determined using analysis of covariance (ANCOVA). The FokI polymorphism showed a significant association with PFM across the whole population after adjusting for age and sex (p=0.022). Age-adjusted analysis revealed an association between body weight and the TaqI and BsmI SNPs in males (p=0.033 and p=0.028, respectively). However, these positive findings did not remain significant after applying the Bonferroni correction for multiple testing. Our findings suggest that VDR genetic variants are unlikely to play a major role in obesity-related phenotypes in a population of Caucasian young adults.
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Affiliation(s)
- M Correa-Rodríguez
- Faculty of Health Sciences, University of Granada (Spain), Av. Ilustración 60, 18016 Granada, Spain.
| | - J A Carrillo-Ávila
- Andalusian Public Health System Biobank, Av. del Conocimiento s/n, 18016, Granada, Spain
| | - J Schmidt-RioValle
- Faculty of Health Sciences, University of Granada (Spain), Av. Ilustración 60, 18016 Granada, Spain
| | - E González-Jiménez
- Faculty of Health Sciences, University of Granada (Spain), Av. Ilustración 60, 18016 Granada, Spain
| | - S Vargas
- Instituto de Parasitología y Biomedicina López-Neyra, IPBLN-CSIC, 18100, Spain
| | - J Martín
- Instituto de Parasitología y Biomedicina López-Neyra, IPBLN-CSIC, 18100, Spain
| | - B Rueda-Medina
- Faculty of Health Sciences, University of Granada (Spain), Av. Ilustración 60, 18016 Granada, Spain
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Quintanilla F, Rodríguez J, Vargas S, Solís SG, Olayo R, Hnatchuk N, Brostow W, Chen I, González M. Membranes of chitosan grafted onto poly(3-hydroxybutyrate): new insights into their applicability as scaffolds. ACTA ACUST UNITED AC 2016. [DOI: 10.1080/14328917.2015.1109198] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- F. Quintanilla
- Department of pharmaco chemical, University of the Valley of Mexico (UVM), Boulevard Villas del Mesón 1000, Juriquilla, Santiago de Querétaro, Querétaro 76320, Mexico
| | - J.R. Rodríguez
- Department of Molecular Engineering of Materials, Center of Applied Physics and Advanced Technology, National Autonomous University of Mexico (CFATA-UNAM), Boulevard Juriquilla 3001, Santiago de Querétaro, Querétaro 76320, Mexico
| | - S. Vargas
- Department of Molecular Engineering of Materials, Center of Applied Physics and Advanced Technology, National Autonomous University of Mexico (CFATA-UNAM), Boulevard Juriquilla 3001, Santiago de Querétaro, Querétaro 76320, Mexico
| | - S. G. Solís
- Department of analytical chemistry, Research Center for Applied Chemistry (CIQA), Blvd. Enrique Reyna Hermosillo # 140 Col, San José de los Cerritos Saltillo Coahuila 25294, Mexico
| | - R. Olayo
- Department of Physics, Autonomous Metropolitan University (UAM), Av. San Rafael Atlixco N° 186, Col. Vicentina, Del. Iztapalapa, México, DF 09340, Mexico
| | - N. Hnatchuk
- Laboratory of Advanced Polymers & Optimized Materials (LAPOM), Department of Materials Science and Engineering and Department of Physics, University of North Texas, 3940 North Elm Street, Denton, TX 76207, USA
| | - W. Brostow
- Laboratory of Advanced Polymers & Optimized Materials (LAPOM), Department of Materials Science and Engineering and Department of Physics, University of North Texas, 3940 North Elm Street, Denton, TX 76207, USA
| | - Ikang Chen
- Laboratory of Advanced Polymers & Optimized Materials (LAPOM), Department of Materials Science and Engineering and Department of Physics, University of North Texas, 3940 North Elm Street, Denton, TX 76207, USA
| | - M. González
- Department of Molecular Engineering of Materials, Center of Applied Physics and Advanced Technology, National Autonomous University of Mexico (CFATA-UNAM), Boulevard Juriquilla 3001, Santiago de Querétaro, Querétaro 76320, Mexico
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Chisholm K, Bhatt A, Freemman S, Duke F, Fuhlbrigge R, Kenna M, Licameli G, Meyerson M, Vargas S, Dedeoglu F. In search of human proteins and infectious triggers involved in periodic fever, aphthous stomatitis, pharyngitis and adenitis syndrome. Pediatr Rheumatol Online J 2015. [PMCID: PMC4597284 DOI: 10.1186/1546-0096-13-s1-p21] [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: 12/02/2022] Open
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Vargas S, Rangel D, Quintanilla F, Rodriguez R. Determination of calcium mobility in alkaline-cooked grounded corn in presence of a magnetic field. J Food Sci 2014. [PMID: 24893922 DOI: 10.1111/1750‐3841.12421] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
UNLABELLED The mobility of calcium ions in corn dough prepared using commercial powder of alkaline-cooked grounded-corn kernel was determined in presence of a magnetic field. The ionic conduction was determined using 2 electrodes placed at 2 consecutives corners of the square samples: the excitation line was along one edge. Three different calcium concentrations [Ca] and 3 different magnetic field B conditions (B0, B-, B+) were analyzed; in all cases, the same amount of water was used. The relaxation times τ were determined by measuring the ionic current with and, immediately after, without excitation voltage. An empirical model, based on the obstruction effect characteristic of the ionic conduction and on the effect of the magnetic field B on the motion of the ions, was developed to explain the dependence of τ with [Ca] and B. The threshold concentration at which the Ca ions are not longer linked chemically to the starch molecules and move freely in the dough interior was obtained. PRACTICAL APPLICATION It was possible to determine the free-to-link threshold concentration for calcium ions in alkaline-cooked grounded-corn kernel dough; this is near 1.5% Ca. The magnetic field allows to separate and measuring different types of ions; a model to explain the dependence of the relaxation time with the magnetic field was included.
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Affiliation(s)
- S Vargas
- Centro de Fisica Aplicada y Tecnologia Avanzada, Univ. Natl. Autonoma de México, Campus Juriquilla, A.P. 1-1010, Querétaro, Qro, 76000, México
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Vargas S, Rangel D, Quintanilla F, Rodriguez R. Determination of calcium mobility in alkaline-cooked grounded corn in presence of a magnetic field. J Food Sci 2014; 79:E1343-50. [PMID: 24893922 DOI: 10.1111/1750-3841.12421] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 01/26/2014] [Indexed: 11/29/2022]
Abstract
UNLABELLED The mobility of calcium ions in corn dough prepared using commercial powder of alkaline-cooked grounded-corn kernel was determined in presence of a magnetic field. The ionic conduction was determined using 2 electrodes placed at 2 consecutives corners of the square samples: the excitation line was along one edge. Three different calcium concentrations [Ca] and 3 different magnetic field B conditions (B0, B-, B+) were analyzed; in all cases, the same amount of water was used. The relaxation times τ were determined by measuring the ionic current with and, immediately after, without excitation voltage. An empirical model, based on the obstruction effect characteristic of the ionic conduction and on the effect of the magnetic field B on the motion of the ions, was developed to explain the dependence of τ with [Ca] and B. The threshold concentration at which the Ca ions are not longer linked chemically to the starch molecules and move freely in the dough interior was obtained. PRACTICAL APPLICATION It was possible to determine the free-to-link threshold concentration for calcium ions in alkaline-cooked grounded-corn kernel dough; this is near 1.5% Ca. The magnetic field allows to separate and measuring different types of ions; a model to explain the dependence of the relaxation time with the magnetic field was included.
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Affiliation(s)
- S Vargas
- Centro de Fisica Aplicada y Tecnologia Avanzada, Univ. Natl. Autonoma de México, Campus Juriquilla, A.P. 1-1010, Querétaro, Qro, 76000, México
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Poesen R, Viaene L, Bammens B, Claes K, Evenepoel P, Meijers B, Bozic M, De Pablo C, Alvarez A, Sanchez-Nino MD, Ortiz A, Fernandez E, Valdivielso JM, Speer T, Zewinger S, Holy EW, Stahli BE, Triem S, Cvija H, Rohrer L, Seiler S, Heine GH, Jankowski V, Jankowski J, Camici G, Akhmedov A, Luscher TF, Tanner FC, Fliser D, Isoyama N, Leurs P, Qureshi AR, Anderstam B, Heimburger O, Barany P, Stenvinkel P, Lindholm B, Bolasco P, Palleschi S, Rossi B, Atti M, Amore A, Coppo R, Loiacono E, Ghezzi PM, Palladino G, Caiazzo M, Di Napoli A, Tazza L, Franco F, Chicca S, Bossola M, Di Lallo D, Michelozzi P, Davoli M, Lucisano S, Arena A, Lupica R, Cernaro V, Trimboli D, Aloisi C, Montalto G, Santoro D, Buemi M, Burtey S, Poitevin S, Darbousset R, Gondouin B, Dubois C, Erkmen Uyar M, Bal Z, Bayraktar N, Gurlek Demirci B, Sayin B, Sezer S, Rogacev K, Zawada A, Emrich I, Seiler S, Bohm M, Fliser D, Woollard K, Heine G, Gbandjaba NY, Ghalim N, Saile R, Khalil A, Fujii H, Yamashita Y, Yonekura Y, Nakai K, Kono K, Goto S, Sugano M, Goto S, Ito Y, Nishi S, Leurs P, Meuwese C, Carrero JJ, Qureshi AR, Anderstam B, Barany P, Heimburger O, Stenvinkel P, Lindholm B, Riccio E, Sabbatini M, Bellizzi V, Pisani A, Svedberg O, Stenvinkel P, Qureshi AR, Barany P, Heimburger O, Leurs P, Isoyama N, Lindholm B, Anderstam B, Barreto-Silva MI, Lemos C, Costa-Silva F, Mendes R, Bregman R, Barreto - Silva MI, Lemos C, Vargas S, Barja-Fidalgo TC, Bregman R, Sidoti A, Lusini ML, Biagioli M, Sereni L, Ghezzi PM, Caiazzo M, Palladino G, Kara E, Ahbap E, Basturk T, Koc Y, Sakaci T, Sahutoglu T, Sevinc M, Akgol C, Unsal A, Snaedal S, Qureshi AR, Carrero JJ, Heimburger O, Stenvinkel P, Barany P, Paliouras C, Haviatsos T, Lamprianou F, Papagiannis N, Ntetskas G, Roufas K, Karvouniaris N, Anastasakis E, Moschos N, Alivanis P, Santoro D, Ingegneri MT, Vita G, Pisacane A, Bellinghieri G, Savica V, Buemi M, Lucisano S, Kim HK, Kim SC, Kim MG, Jo SK, Cho WY, Altunoglu A, Yavuz D, Canoz MB, Yavuz R, Karakas LA, Bayraktar N, Colak T, Sezer S, Ozdemir FN, Haberal M, Akbasli AC, Keven K, Erbay B, Nebio lu S, Loboda O, Dudar I, Krot V, Alekseeva V, Grabulosa CC, De Carvalho JTG, Manfredi SR, Canziani ME, Quinto BMR, Peres AT, Batista MC, Cendoroglo M, Dalboni MA, Zingerman B, Azoulay O, Gamzo Z, Rozen-Zvi B, Stefan G, Capusa C, Stancu S, Ilyes A, Viasu L, Mircescu G, Yilmaz MI, Solak Y, Saglam M, Cayci T, Acikel C, Unal HU, Eyileten T, Oguz Y, Sari S, Carrero JJ, Stenvinkel P, Covic A, Kanbay M, Kim YN, Park K, Gwoo S, Shin HS, Jung YS, Rim H, Rhew HY, Gok M, Kurt Y, Unal HU, CetInkaya H, Karaman M, EyIeten T, Vural A, Yilmaz MI, Oguz Y, Flisi Ski M, Brymora A, StrozEcki P, Stefa Ska A, Manitius J, Donderski R, Mi Kowiec-Wi Niewska I, Kretowicz M, Johnson R, Kami Ska A, Junik R, Siodmiak J, Stefa Ska A, Odrowaz-Sypniewska G, Manitius J, Tasic D, Radenkovic S, Kocic G, Wyskida K, Spiechowicz-Zato U, Rotkegel S, Ciepal J, Klein D, Bozentowicz-Wikarek M, Brzozowska A, Olszanecka-Glinianowicz M, Chudek J, Dimitrijevic Z, Cvetkovic T, Mitic B, Paunovic K, Paunovic G, Stojanovic M, Velickovic-Radovanovic R, Gliga ML, Gliga PM, Stoica C, Tarta D, Dogaru G. CKD NUTRITION, INFLAMMATION AND OXIDATIVE STRESS. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu168] [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: 11/14/2022] Open
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Estévez M, Vargas S, Hagg Lobland HE, de la Isla A, Brostow W, Rogelio Rodríguez J. Characterization of novel dental obturation materials. ACTA ACUST UNITED AC 2013. [DOI: 10.1179/143307507x199399] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Vargas S, Estevez M, Hernandez A, Laiz JC, Brostow W, Hagg Lobland HE, Rodriguez JR. Hydroxyapatite based hybrid dental materials with controlled porosity and improved tribological and mechanical properties. ACTA ACUST UNITED AC 2013. [DOI: 10.1179/1433075x12y.0000000063] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- S. Vargas
- Centro de Fisica Aplicada y Tecnología Avanzada (CFATA)Universidad Nacional Autonoma de Mexico, Campus Juriquilla, Queretaro, CP 76230, Mexico
| | - M. Estevez
- Centro de Fisica Aplicada y Tecnología Avanzada (CFATA)Universidad Nacional Autonoma de Mexico, Campus Juriquilla, Queretaro, CP 76230, Mexico
| | - A. Hernandez
- Centro de Fisica Aplicada y Tecnología Avanzada (CFATA)Universidad Nacional Autonoma de Mexico, Campus Juriquilla, Queretaro, CP 76230, Mexico
| | - J. C. Laiz
- Centro de Fisica Aplicada y Tecnología Avanzada (CFATA)Universidad Nacional Autonoma de Mexico, Campus Juriquilla, Queretaro, CP 76230, Mexico
| | - W. Brostow
- Laboratory of Advanced Polymers & Optimized Materials (LAPOM)Department of Materials Science & Engineering, University of North Texas, 1150 Union Circle 305310, Denton, TX 76203-5017, USA
| | - H. E. Hagg Lobland
- Laboratory of Advanced Polymers & Optimized Materials (LAPOM)Department of Materials Science & Engineering, University of North Texas, 1150 Union Circle 305310, Denton, TX 76203-5017, USA
| | - J. R. Rodriguez
- Centro de Fisica Aplicada y Tecnología Avanzada (CFATA)Universidad Nacional Autonoma de Mexico, Campus Juriquilla, Queretaro, CP 76230, Mexico
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Rodriguez R, Loske AM, Estevez M, Vargas S, Salazar R, Pacheco F, Vazquez-Carpizo J, Gamboa JM. Bio-packaged transponder MEMS implanted in rats. J Biomater Sci Polym Ed 2012; 24:31-44. [PMID: 22304894 DOI: 10.1163/156856211x621097] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A novel hydroxyapatite-based hybrid material with controlled porosity was designed as a bio-package to implant micro-electro-mechanical systems (MEMS) in living organisms. The biomaterial was prepared using synthetic stoichiometric hydroxyapatite powder reacted with a chemical-active, solvent-free, alkyd-based polyurethane. This porous material has interconnected pores with sizes between 100 and 350 μm and a pore volume fraction of 50%, fulfilling the requirements for implants. The biomaterial additionally has high wearing resistance and hydrolytic stability providing high endurance properties. The bio-package was characterized mechanically and morphologically using X-ray diffraction, scanning electron microscopy, densitometry, abrasion and mechanical tests. Twelve packaged micro-electro-mechanical systems were implanted subcutaneously into rats and tested for up to 9 months with good acceptance as revealed by the histological analysis performed on the soft tissue surrounding each implant.
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Affiliation(s)
- R Rodriguez
- Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, México.
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Abstract
ABSTRACTThe performance of dye-sensitized solar cells (DSSC) based on natural dyes extracted from five different sources isreported. These are inexpensive, have no nutritional use, and are easy to find in Mexico. The solar cells wereassembled using a thin film and a TiO2 mesoporous film on ITO-coated glass; these films were characterized byFTIR. The extracts were characterized using UV–Vis and typical I-V curves were obtained for the cells. The bestperformance was for Punica Granatum with a solar energy conversion efficiency of 1.86%, with a current density Jscof 3.341 mA/cm2 using an incident irradiation of 100 mW/cm2 at 25 ºC.
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Vargas S, Ndjoko Ioset K, Hay AE, Ioset JR, Wittlin S, Hostettmann K. Screening medicinal plants for the detection of novel antimalarial products applying the inhibition of β-hematin formation. J Pharm Biomed Anal 2011; 56:880-6. [PMID: 21872416 DOI: 10.1016/j.jpba.2011.06.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 06/27/2011] [Accepted: 06/28/2011] [Indexed: 10/18/2022]
Abstract
The identification of novel scaffolds for the development of effective and safe treatments to fight malaria is urgently needed. One of the main opportunities is the discovery of new molecules from natural origin. A simple, robust and cost-effective colorimetric assay based on the inhibition of β-hematin has been adapted to routinely screen plant extracts with the ultimate goal to identify novel antimalarial ingredients. The development of this assay has included a careful optimization of all critical experimental parameters. The β-hematin assay can be completed in less than one working day, requiring a 96-well UV-vis plate reader and low-cost commercially available reagents using a standard operating protocol. It can be used on its own or in combination with the well-known Plasmodium growth inhibition assay and has the obvious merit to be informative at the early stage of drug discovery regarding the mechanism of action of the actives. A total of 40 diverse natural products and 219 plants extracts were tested. Good correlations in respect with specificity (pure compounds 85%, extracts 93%) and positive predictive value (pure compounds 72%, extracts 50%) were obtained in comparison with Plasmodium growth inhibition assay that was used as the reference assay.
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Affiliation(s)
- S Vargas
- School of Pharmaceutical Sciences, University of Geneva, 1211 Geneva 4, Switzerland
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Pabon B, Vargas S, Vargas S. E-060 Complex cerebral arteriovenous fistula: endovascular treatment using transvenous and transarterial approach. J Neurointerv Surg 2010. [DOI: 10.1136/jnis.2010.003251.60] [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: 11/04/2022]
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Pabon B, Vargas S, Urena P. E-064 Endovascular treatment of intracranial aneurysm with stents: experience of a Latin American Country. J Neurointerv Surg 2010. [DOI: 10.1136/jnis.2010.003251.64] [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: 11/04/2022]
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Mascort C, Beltran i Vilella M, Solanas P, Vargas S, Saura S, Adalid C. Validez y fiabilidad de la prueba de Kupperman. Clínica e Investigación en Ginecología y Obstetricia 2008. [DOI: 10.1016/s0210-573x(08)73061-2] [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: 10/21/2022]
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Alfaro D, Silva A, Borges S, Maiorka F, Vargas S, Santin E. Use of Yucca schidigera Extract in Broiler Diets and Its Effects on Performance Results Obtained with Different Coccidiosis Control Methods. J APPL POULTRY RES 2007. [DOI: 10.1093/japr/16.2.248] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Vargas S, Larbi A, Sánchez M. Analysis of size and conformation of native Creole goat breeds and crossbreds used in smallholder agrosilvopastoral systems in Puebla, Mexico. Trop Anim Health Prod 2007; 39:279-86. [PMID: 17847823 DOI: 10.1007/s11250-007-9012-6] [Citation(s) in RCA: 12] [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] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Liveweight (LW) of does and bucks of the native Creole goat breed and crosses of Creole does and Nubian bucks, aged 1.5-5 years, were recorded and body traits including: head length (HL), head width (HW), body length (BL), trunk length (TL), chest girth (CG), abdominal perimeter (AP), rump length (RL), and height at withers (HW) were measured to develop equations for predicting LW from the body measurements. Weight, sex, breed and kidding date of 354 kids were recorded at birth, and LW of the kids was measured monthly for one year to determine the effect of kidding season on growth rate. Bucks had higher (p < 0.05) body measurements than the does (HL 15.1 +/- 0.1 vs 16.6 +/- 0.2 cm; BL 97.6 +/- 0.4 vs 104.6 +/- 1.2 cm; CG 78.8 +/- 0.4 vs 79.9 +/- 1.0 cm; AP 82.4 +/- 0.5 vs 87.2 +/- 1.1 cm; HW 62.7 +/- 0.4 vs 70.1 +/- 0.8 cm). With the exception of TL, F2 does had higher (p < 0.05) body measurements and LW (28.8 +/- 1.5 vs 27.7 +/- 0.5 kg) than Creole does. The body traits of the F1 does were similar (p > 0.05) to those of Creole does with the exception of HL, BL and HR. The F2 kids were heavier (p < 0.05) at birth (3.31 +/- 0.1 vs 2.60 +/- 0.1 kg) and grew faster than the Creole kids. Male kids were heavier (p < 0.05) at birth (3.21 +/- 0.10 vs 2.73 +/- 0.13 kg), and grew faster than female kids. Season had a significant effect on birth weight. The results showed that LW of Creole goats and Creole x Nubian does could be estimated in the field using body traits. Birth weight and growth rate of kids could be improved by management practices that affect season of kidding.
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Affiliation(s)
- S Vargas
- Department of Animal Production, University of Cordoba, Cordoba, Spain
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Isla ADL, Pacheco S, Estevez M, Vargas S, Castaño V, Rodríguez R. SYNTHESIS AND CHARACTERIZATION OF A WEAR-RESISTANT HYBRID POLYMER-CERAMIC COATING FOR DENTAL APPLICATIONS. INT J POLYM MATER PO 2004. [DOI: 10.1080/009140330490502382] [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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Estevez M, Vargas S, Castaño V, Rodríguez R, Rodríguez V. Hybrid ceramic-polymer coating used to protect metallic surfaces against corrosion. INT J POLYM MATER PO 2003. [DOI: 10.1080/713743710] [Citation(s) in RCA: 3] [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: 10/23/2022]
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Bet MR, Goissis G, Vargas S, Selistre-de-Araujo HS. Cell adhesion and cytotoxicity studies over polyanionic collagen surfaces with variable negative charge and wettability. Biomaterials 2003; 24:131-7. [PMID: 12417186 DOI: 10.1016/s0142-9612(02)00270-3] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.0] [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: 10/27/2022]
Abstract
This work describes the cytotoxicity, and the cell adhesion behavior of K562 cell line from human erythroleukemia transfected with the DNA for the alpha(2)beta(1) integrin over type-I collagen matrices with variable degree of carboxyl group and wettability. The results showed that type-I collagen materials with variable degree of carboxyl group prepared by selective hydrolysis of carboxyamide side chains of Asn and Gln residues present in the protein, independently from the extent of side chain hydrolysis, was characterized by preserved triple helix structure for materials with a carboxyl group content up to 87 +/- 17. Imbibition and wettability increased linearly with increasing carboxyl group content from 46 +/- 12 to 87 +/- 17, and no signs of cytotoxicity were detected. Nevertheless, in comparison to native collagen, K562 cell adhesion to PACMs was significantly improved by factors ranging from 1.60 to 1.47x, with the reduction in cell adhesion observed with increasing carboxyl content attributed to a balance between the inhibition of increasing negative charge and the stimulation by increased wettability. On the other hand, the overall improvement of K562 cell adhesion to polyanionic collagen was attributed to the introduction of new distinct motifs described as the minimal active recognition sequence for alpha(2)beta(1) integrins binding with type-I collagen produced as a result of Asn-Gly Glu-Ala alpha2(I)294-297, and Gly Gln-Arg-Gly Val-Val carboxyamide side chains hydrolysis.
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Affiliation(s)
- M R Bet
- Department of Chemistry and Molecular Physics, Institute of Chemistry, Universidade de São Paulo, SP Av Trabalhador Sãocarlense 400, São Carlos, São Paulo, CP 780-CEP 13560-970, Brazil
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Arboleda-Velasquez JF, Lopera F, Lopez E, Frosch MP, Sepulveda-Falla D, Gutierrez JE, Vargas S, Medina M, Martinez De Arrieta C, Lebo RV, Slaugenhaupt SA, Betensky RA, Villegas A, Arcos-Burgos M, Rivera D, Restrepo JC, Kosik KS. C455R notch3 mutation in a Colombian CADASIL kindred with early onset of stroke. Neurology 2002; 59:277-9. [PMID: 12136071 DOI: 10.1212/wnl.59.2.277] [Citation(s) in RCA: 48] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is caused by mutations in the notch3 epidermal growth factor-like repeats. A Colombian kindred carries a novel C455R mutation located in the predicted ligand-binding domain. Stroke occurred in the patients at an unusually early age (median age: 31 years) in comparison to the more frequent onset in the fourth decade of life in other CADASIL populations, including a second Colombian kindred with an R1031C mutation.
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Affiliation(s)
- J F Arboleda-Velasquez
- Center for Neurological Diseases, Brigham and Women's Hospital-Harvard Medical School, Boston, MA, USA
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Rodrígueza R, Jiménez S, Vargas S, Pacheco S, Castaño VM. Micro-Raman Characterization of Anisotropic Dimethyl Terephthalate Crystallites. INT J POLYM MATER PO 2001. [DOI: 10.1080/00914030108035863] [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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Escobar R, Rios A, Montoya ID, Lopera F, Ramos D, Carvajal C, Constain G, Gutierrez JE, Vargas S, Herrera CP. Clinical and cerebral blood flow changes in catatonic patients treated with ECT. J Psychosom Res 2000; 49:423-9. [PMID: 11182435 DOI: 10.1016/s0022-3999(00)00190-2] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To determine changes in clinical manifestations and cerebral blood flow (CBF) before and after administration of ECT to patients with catatonia due to schizophrenia or mood disorders. METHODS A sample of nine patients who met DSM-IV criteria for catatonia was studied. Patients received between 5 and 15 sessions (thrice per week) of ECT. Severity of catatonia was measured with the Modified Rogers Scale (MRS). Changes in CBF were measured with a brain single positron emission computer tomography (SPECT) that was performed 1 week before the first ECT and 1 week after the last ECT. RESULTS Catatonia was due to schizophrenia in five patients and mood disorders in four patients. There were no significant clinical and brain SPECT differences between these two groups before treatment. Pre- vs. post-ECT comparisons showed significant reduction of catatonic symptoms in both groups. However, patients with mood disorders needed less ECT sessions and showed greater clinical improvement. Brain SPECT showed significant increase in CBF in parietal, temporal, and occipital regions in patients with mood disorder and no significant changes in patients with schizophrenia. CONCLUSIONS These results support the efficacy of ECT for treatment of catatonic patients, especially secondary to mood disorders, which seem to be correlated with improvements in CBF.
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Affiliation(s)
- R Escobar
- Psychiatric Inpatient Unit, Department of Psychiatry, Hospital San Vicente de Paul, University of Antioquia, Calle 64 #51 d, Medellin, Colombia.
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Dumoulin A, Mazars E, Seguy N, Gargallo-Viola D, Vargas S, Cailliez JC, Aliouat EM, Wakefield AE, Dei-Cas E. Transmission of Pneumocystis carinii disease from immunocompetent contacts of infected hosts to susceptible hosts. Eur J Clin Microbiol Infect Dis 2000; 19:671-8. [PMID: 11057500 DOI: 10.1007/s100960000354] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.0] [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: 10/27/2022]
Abstract
Pneumocystis carinii organisms constitute a large group of heterogeneous atypical microscopic fungi that are able to infect immunocompromised mammals by an airborne route and to proliferate in their lungs, inducing Pneumocystis carinii pneumonia. This pneumonia remains a crucial epidemiological challenge, since neither the source of Pneumocystis carinii infection in humans nor the process by which humans become infected has been clearly established. Polymerase chain reaction (PCR) assays have shown that profoundly immunosuppressed patients without pneumocystosis can be subclinically infected with Pneumocystis. Other PCR-based studies have suggested that healthy immunocompetent hosts are not latent carriers of the parasite. However, recent reports have indicated that Pneumocystis carinii can persist for limited periods in the lungs of convalescent rats after recovery from corticosteroid-induced pneumocystosis, and also that immunocompetent mammals can be transiently parasitized by Pneumocystis carinii after close contact with hosts with Pneumocystis carinii pneumonia. Can transiently parasitized hosts be a source of infection for immunosuppressed hosts? In order to investigate this important clinical question, the ability of immunocompetent BALB/c mice, which were carrying subclinical levels of Pneumocystis carinii, to transmit the infection by the airborne route to highly susceptible, uninfected mice with severe combined immunodeficiency was studied. The results indicated that the immunocompetent mice, transiently parasitized by Pneumocystis carinii organisms after close contact with Pneumocystis carinii-infected mice, were able to transmit the infection to Pneumocystis carinii-free mice with severe combined immunodeficiency.
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Affiliation(s)
- A Dumoulin
- Department of Microbiology of Ecosystems, Pasteur Institute of Lille, France
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Vázquez C, Vargas S, Pena JM. Design and tolerance analysis of a router with an amplified resonator and Bragg gratings. Appl Opt 2000; 39:1934-1940. [PMID: 18345090 DOI: 10.1364/ao.39.001934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A novel ring resonator configuration with Bragg gratings is presented. The stability of this configuration is studied by a z-transform technique. A router design with a FWHM of 17 MHz, a -40-dB rejection ratio, and a 15-dB gain at the output port is reported. The influence of temperature and of fabrication tolerance on parameters of this router configuration implemented with fiber technology is reviewed. Deviations in design specification owing to parameter variations are studied and compensated for with a gain control of 2.4% in a specific design.
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Affiliation(s)
- C Vázquez
- Ingeniería Eléctrica, Electrónica y Automática, Area Tecnología Electrónica, Universidad Carlos III, Avenida Universidad 30, Leganés 28911, Madrid, Spain.
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Contreras MC, Sandoval L, Salinas P, Muñoz P, Vargas S. [Diagnostic use of ELISA, IgG, IgM, IgA and ELISA IgG avidity in recent and chronic toxoplasmosis]. Bol Chil Parasitol 2000; 55:17-24. [PMID: 11757412] [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: 04/17/2023]
Abstract
Toxoplasmosis, a world-wide zoonotic infection, is generally asymptomatic and benign in immunocompetent individuals, but it can be serious in immunodeficiencies particularly in patients with acquired immunodeficiency syndrome and in children infected in utero. So, it is important to dispose methods which permit discriminate between recent and chronic infections. In order to contribute to improve the diagnosis of toxoplasmosis ELISA IgG, IgM, IgA and ELISA IgG avidity were performed in 15 and 24 sera from patients suspected of having acute and chronic infection respectively, according dye test (DT) titres. ELISA IgG was positive in both groups, ELISA IgM was positive in 78.6 and 58.3% respectively, while ELISA IgA was positive in 85.7 and 33.3% of recent and chronic group respectively. In those sera with low IgG avidity (18.8%) we found specific IgM in 71.5 and 4.2% and IgA in 78.6 and 0.0% of recent and chronic groups respectively. Parallelling, 208 sera samples were classified according to the results of DT, indirect hemagglutination and complement fixation tests in the following groups: acute (97), intermediate (36), chronic (35) and negative (40). The results were: acute (96.9-64.9-55.6 and 65.9%); intermediate (97.2-63.8-44.4 and 47.2%); chronic (45.7-42.8-5.7 and 34.3%) for IgG, IgM, IgA and low IgG avidity respectively. The use of both acute markers, IgA and low IgG avidity in the diagnosis of toxoplasmosis is discussed.
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Affiliation(s)
- M C Contreras
- Programa de Parasitología, ICBM, Facultad de Medicina, Universidad de Chile, Casilla 9183, Santiago, Chile
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Ramirez JA, Vargas S, Ritter GW, Brier ME, Wright A, Smith S, Newman D, Burke J, Mushtaq M, Huang A. Early switch from intravenous to oral antibiotics and early hospital discharge: a prospective observational study of 200 consecutive patients with community-acquired pneumonia. Arch Intern Med 1999; 159:2449-54. [PMID: 10665893 DOI: 10.1001/archinte.159.20.2449] [Citation(s) in RCA: 156] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
UNLABELLED To determine the proportion of patients who can be treated with early switch to oral antibiotics and early discharge, to evaluate clinical outcome and patient satisfaction for patients treated with early switch and early discharge, and to define the factors that interfere with early discharge for some of the patients who underwent early switch to oral antibiotic therapy. DESIGN Prospective study. PARTICIPANTS Two hundred consecutive hospitalized patients with community-acquired pneumonia. MAIN OUTCOME MEASURES Number of days needed to switch to oral therapy and length of hospital stay. Clinical outcome and satisfaction with care were evaluated for those patients treated with early switch and early discharge. RESULTS Early switch to oral antibiotics (within the first 3 days of hospitalization) was performed in 133 patients (67%). Clinical failure was documented in 1 patient. Early switch and early discharge was performed in 88 patients (44%). The mean length of hospital stay for this group was 3.4 days. The most common reason for prolonged hospitalization after the switch to oral antibiotics was the need for diagnostic workup. More than 95% of patients were satisfied with the care they had received. CONCLUSIONS Using simple clinical and laboratory criteria, a significant proportion of hospitalized patients with community-acquired pneumonia (44%) can be treated with early switch and early discharge. This model did not affect patient outcome, decreased the length of hospitalization, and was associated with a high level of patient satisfaction.
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Affiliation(s)
- J A Ramirez
- Department of Medicine, University of Louisville School of Medicine and Veterans Affairs Medical Center, KY 40202, USA
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Vargas S. Skills training or occupational therapy for persistent schizophrenia. Am J Psychiatry 1999; 156:1293; author reply 1294-5. [PMID: 10450282 DOI: 10.1176/ajp.156.8.1293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lopera F, Tobón N, Arcos-Burgos M, Vargas S, Gutiérrez JE, Rosselli M, Ardila A. [Image characterization of Alzheimer's disease associated with the E280A-PS1 mutation. Case-control study: MRI findings]. Rev Neurol 1999; 29:6-12. [PMID: 10528301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
INTRODUCTION AND METHODS In order to compare the magnetic resonance image characteristics of individuals belonging to pedigrees carrying the mutation E280A-PS1 associated to early onset Alzheimer disease, coming from Antioquia, Colombia, 78 individuals were studied. 47 of them were carriers of the mutation, 23 of those presented symptoms and 31 individuals being controls (non carriers of the mutation). RESULTS In summary, significative differences were appreciated between symptomatic individuals and those asymptomatic. There was not significant difference between asymptomatic carriers and the controls. The presence of the perihippocampal fissure constituted a difference statistically significant between the symptomatic individuals and those carriers asymptomatic and between the symptomatic ones and the controls. The interuncal distance increased significantly was another difference between symptomatic and asymptomatic individuals and among symptomatic and control group. The lobar atrophy and the ventriculomegaly were found in symptomatic individuals and they correlate with the disorder graveness. There was not significance in the presence of infarcts and/or hippocampal hyperintensities. CONCLUSION These results corroborate the statement that magnetic resonance image is very useful in the diagnosis and follow-up of individuals affected by early onset Alzheimer disease.
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Affiliation(s)
- F Lopera
- Sección de Neurología Clínica, Facultad de Medicina, Universidad de Antioquia.
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Abstract
OBJECTIVE The purpose of this study was to find whether existing studies of treatment using sensory integration approaches support the efficacy of these approaches. METHOD With meta-analysis, the results of sensory integration efficacy research studies published from 1972 to the present were synthesized and analyzed. Sixteen studies were used to compare sensory integration effect with no treatment (SI/NT), and 16 were used to compare sensory integration effect with alternative treatments (SI/ALT). Overall average effect sizes, comparisons of the effect sizes for different dependent variables, and secondary factors associated with effect size variation were examined. RESULTS The weighted average effect size of SI/NT studies was .29. However, there was a significant difference between the average effect sizes of the earlier studies (.60) and the more recent studies (.03). Of the outcome measures, larger effect sizes were found in the psychoeducational category (.39) and motor category (.40). Of SI/ALT studies, the average effect size was .09, not significantly different from zero. CONCLUSION Three central conclusions can be made. First, in the SI/NT comparison, a significant effect was replicated for sensory integration treatment effects in earlier studies, but more recent studies did not show overall positive effects. Second, larger effect sizes were found in psychoeducational and motor categories. Third, sensory integration treatment methods were found to be as effective as various alternative treatment methods.
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Affiliation(s)
- S Vargas
- Occupational Therapy Department, Kean University of New Jersey, Union 07083, USA
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Lopera Restrepo F, Tobón Lopera N, Arcos Burgos OM, Vargas S, Gutiérrez J, Rosselli M, Ardila A. Caracterización imagenológica de la enfermedad de Alzheimer asociada a la mutación E280A-PS1. Estudio caso-control: hallazgos en la resonancia magnética. Rev Neurol 1999. [DOI: 10.33588/rn.2901.99136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Rodriguez R, Vargas S, Fernandez-Velasco DA. Reverse Micelle Systems Composed of Water, Triton X-100, and Phospholipids in Organic Solvents. J Colloid Interface Sci 1998; 197:21-8. [PMID: 9466839 DOI: 10.1006/jcis.1997.5202] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Enzymes entrapped in systems formed with water, phospholipids, toluene, and Triton X-100 show a catalytic activity that is much lower and a thermostability that is much higher than that observed in totally aqueous systems or in other types of reverse micelles. By phase boundary titrations and dynamic light scattering, this work characterizes reverse micelle systems formed in either toluene or propylbenzene with Triton X-100 and water. Four regions with distinct structural features were encountered. Up to one molecule of water per one Triton X-100 molecule, the system was transparent; light scattering measurements of this region indicated that water hydrated Triton X-100 monomers. A turbid region was formed as water content was increased to water:Triton X-100 ratios of 7.6 in toluene and 4.2 in propylbenzene. This thermodynamically unstable region was formed by large polydisperse structures. Transparent systems containing small size (27-150 A) thermodynamically stable reverse micelles were formed when the ratio of water to Triton X-100 molecules in the reverse micelle was in the range of 7.6 to 26.8 in toluene and 4.2 to 15.1 in propylbenzene. In this region, micellar size increased with water content. Water concentrations higher than the latter values resulted in phase separation. A similar titration of the aforementioned systems in the presence of phospholipids revealed that in the first region of transparency up to 10 molecules of water hydrated a phospholipid molecule. The inclusion of phospholipids to the Triton X-100 systems caused a displacement of the boundaries of the second region of transparency toward higher water contents. Copyright 1998 Academic Press. Copyright 1998Academic Press
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Affiliation(s)
- R Rodriguez
- Departamento de Fisica, Universidad Autonoma Metropolitana-Iztapalapa, D.F. 09340, Mexico
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Fernandez-Velasco DA, Rodriguez R, Vargas S, Gomez-Puyou A. Reverse Micelle Systems Composed of Water, Triton X-100, and Phospholipids in Organic Solvents. J Colloid Interface Sci 1998; 197:29-35. [PMID: 9466840 DOI: 10.1006/jcis.1997.5203] [Citation(s) in RCA: 4] [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: 02/06/2023]
Abstract
Catalysis, stability, and thermostability of yeast hexokinase were determined in the microenvironments of two organic solvent/Triton X-100/phospholipids systems. In the abscence of enzyme, phase diagrams showed two transparent/turbid transitions, and reverse micelles were only observed in the second region of transparency (T2), where particle size as a function of water content shows a minima (see previous paper in this issue). In the present work, enzyme activity was detected throughout the four regions of the phase diagrams of these systems. Catalysis increased with water content; nevertheless, the maximum activities that were reached in the toluene and propylbenzene systems were 30 and 1.6%, respectively, of the activity in all aqueous media. Because in the T2 region in the propylbenzene system, micelles are much smaller than in toluene (see preceding paper), it would appear that expression of catalysis depends on the size of the micelles. However, a comparison of the dimensions of hexokinase and those of reverse micelles in the T2 region, suggests that in this region, hexokinase entrapment increases the inner volume of the micelle. High enzyme thermostability was only observed in the first transparent region (T1) of the system that contained phospholipids. In this region, hexokinase induced the formation of reverse micelles from dispersed surfactant monomers. There is a striking similarity in the dimensions of hexokinase entrapped in reverse micelles as determined by dynamic light scattering measurements in the T1 region with those of hexokinase as obtained from X ray diffraction studies of the enzyme in a crystalline environment. This suggest that high thermostability, and low catalytic rates result from restrictions in mobility imposed by a low water environment. Copyright 1998 Academic Press. Copyright 1998Academic Press
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Affiliation(s)
- DA Fernandez-Velasco
- Facultad de Medicina, Universidad Nacional Autonoma de Mexico, D.F. 04510, Mexico
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Muzzo S, Burgueño M, Carvajal F, Biolley E, Avendaño M, Vargas S, Leiva L. [Iodine nutrition in school children of four census areas of Chile]. Rev Med Chil 1997; 125:1299-304. [PMID: 9609050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Although endemic goiter is an easily controlled chronic disease, it continues to be a serious global public health problem. AIM To study iodine nutrition in school age children from different areas of Chile. SUBJECTS AND METHODS Thyroid gland was palpated in 4181 school age children from Calama, Santiago, Temuco and Punta Arenas. Urinary iodine excretion was measured to 9% of these children and iodine concentration in salt for human consumption obtained in each of these areas was determined. RESULTS A 9% goiter prevalence in boys and 11% prevalence in girls was detected. The prevalence of goiter Ia was 6.5% and the figure in different geographic areas was similar. Iodine concentration in salt for human consumption was adequate according to Chilean legislation (82.6, 95.7, 96.8 and 93.2 micrograms ugI/g salt in Calama, Santiago, Temuco and Punta Arenas respectively). Urinary iodine excretion in boys and girls was 1695 and 1802 micrograms l/g creatinine in Calama, 680 and 732 in Santiago, 574 and 690 in Temuco, 570 and 528 in Punta Arenas. These values are well above recommendations. CONCLUSIONS Endemic goiter is no longer a problem in Chile. The importance of a continuous surveillance of iodine nutrition in Chile and the reduction of salt iodine concentration required by Chilean legislation is underscored.
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Affiliation(s)
- S Muzzo
- INTA Universidad de Chile, Santiago
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Abstract
No published reports have stratified pediatric patients with systemic infections according to the new sepsis terminology guidelines. In addition little is known about the outcome of sepsis in developing countries. This large 12-year retrospective study evaluated the outcome of 815 infants and children with sepsis managed in a Latin American pediatric intensive care unit. Of these children 171 (21%) had sepsis, 497 (61%) had severe sepsis and 147 (18%) had septic shock. Multiorgan dysfunction was present in 120 (24%) and 77 (52%) patients with severe sepsis and septic shock, respectively. Infection was bacteriologically proved in 212 (26%) cases, with Staphylococcus aureus and Neisseria meningitidis being the most frequent responsible organisms. Three hundred nineteen (39%) patients died. Case-fatality rates were higher in patients with septic shock, multiorgan dysfunction, sepsis caused by Pseudomonas aeruginosa and meningococcemia than in those without these conditions. Although no difference in mortality was detected between culture-proved and culture-negative sepsis, more patients receiving an inappropriate antimicrobial agent died than those treated with an appropriate drug (53% vs. 34%, P = 0.012). We believe that with the use of the new terminology system a more reliable comparison of data from pediatric sepsis studies and of emerging immunomodulating therapeutic modalities can be achieved.
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Affiliation(s)
- X Sáez-Llorens
- Department of Pediatrics, Hospital del Niños, Panama City, Panama
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Affiliation(s)
- H T Winer-Muram
- Department of Diagnostic Imaging, St. Jude Children's Research Hospital, Memphis, Tennessee 38101
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Abstract
In a retrospective study at Hospital del Niño in Panama City, Panama, 577 neonates with culture-proved sepsis and/or meningitis were identified during an 18-year period (1975 to 1992). Overall there was an incidence of 3.5 cases/1000 live births. Three hundred thirty-three patients (58%) were of low birth weight (< 2500 g) and 260 (45%) were premature. Gram-negative bacilli, particularly species of Klebsiella and Escherichia coli, were responsible for 61% of infections, whereas Gram-positive isolates (especially staphylococci) and Candida strains accounted for 37 and 2%, respectively. The patterns of predominance among bacterial pathogens, however, changed during the period of study. In the later years of this study the frequency of Gram-negative bacteria declined whereas those of staphylococci and Candida increased. Likewise systemic infections caused by Group B Streptococcus organisms appeared recently. The case-fatality rate was 32%. Mortality was greater in infants with early onset sepsis than in those with late infections (44% vs. 22%, P < 0.0001; odds ratio, 2.8; 95% confidence interval, 1.9 to 4.1) and lesser in neonates infected by coagulase-negative staphylococci than in those infected by any other pathogen (12 vs. 39%, P < 0.001; odds ratio, 0.2; 95% confidence interval, 0.1 to 0.4). These findings provide guidelines for the selection of empiric antimicrobial agents in our country and possibly in other Latin American countries and suggest that a continued thorough epidemiologic evaluation is needed to anticipate bacteriologic changes over time.
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MESH Headings
- Candidiasis/epidemiology
- Developing Countries
- Female
- Gram-Negative Bacteria/isolation & purification
- Gram-Negative Bacterial Infections/epidemiology
- Gram-Negative Bacterial Infections/microbiology
- Gram-Positive Bacteria/isolation & purification
- Gram-Positive Bacterial Infections/epidemiology
- Gram-Positive Bacterial Infections/microbiology
- Humans
- Incidence
- Infant, Low Birth Weight
- Infant, Newborn
- Infant, Premature
- Infant, Premature, Diseases/epidemiology
- Infant, Premature, Diseases/microbiology
- Male
- Meningitis, Bacterial/epidemiology
- Meningitis, Bacterial/microbiology
- Meningitis, Bacterial/mortality
- Panama/epidemiology
- Retrospective Studies
- Sepsis/epidemiology
- Sepsis/microbiology
- Sepsis/mortality
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Abstract
Vitamin D and its metabolites are tightly bound to the serum vitamin D-binding protein (DBP) and only the free hormone is considered to be physiologically active. On the other hand, DBP could interact with cell membranes and even favor its intracellular entry. The present study was undertaken to examine the effects of DBP on bone resorption stimulated by 1,25-dihydroxyvitamin D3 [1,25(OH)2D3]. Forelimb bones from 19-day-old fetal rats were cultured for 5 days in the presence of purified human or rat serum albumin (hSAP or rSAP) and 1,25(OH)2D3, with or without human or rat DBP (hDBP or rDBP). Bone resorption was assessed by measuring the release of previously incorporated 45Ca. We found that the resorptive response to 1,25(OH)2D3 was minimally altered by hDBP (5 microM). The minimal effects of hDBP on 1,25(OH)2D3 activity on rat bones might be explained by a 6-fold lower affinity of hDBP (1.1 x 10(7) M-1) than rDBP (5.9 x 10(7) M-1) for 1,25(OH)2D3 or by species differences in cellular recognition of DBP. In a homologous rat system, however, rDBP at low (0.5 microM) or physiological (5 microM) concentration significantly decreased 1,25(OH)2D3-induced bone resorption. These data therefore support the hypothesis that free rather than DBP-bound 1,25(OH)2D3 is physiologically important.
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Affiliation(s)
- S Vargas
- Department of Medicine, University of Connecticut Health Center, Farmington 06032
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Molina MX, Rodriguez FG, Urbina T, Vargas S. [Effect of weekly mouthrinses with 0.2% neutral NaF solution on caries incidence in first permanent molars]. Odontol Chil 1989; 37:176-82. [PMID: 2641954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A 32-month study was undertaken to determine the caries inhibitory effect of a weekly rinse for one minute with a solution of 0.2% NaF on the first permanent molars. Subjects who participated in the study were 295 school children aged from 5 to 13 years who were divided by random selection in two groups, test and control who rinsed with either 0.2% NaF solution or a placebo under double-blind conditions. Reductions in caries increments on first permanent molars (20.7% DMFT and 31.9% DMFS) were seen in the test group as compared with the control group. A preventive effect was also seen in all first permanent molars surfaces, being the major protective effect in approximal surfaces (52% reduction) followed by occlusal (36%) and bucolingual surfaces (16%).
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Abstract
The level of alcoholism in Chile and its variations between 1952 and 1982 are studied by means of the Jellinek Method. The limitations and bias of the methodology employed are indicated and the results are compared with those of other children studies. The conclusion is that there was an increase in the number of alcoholics and in the alcoholism rate during the period analyzed, with a rate for 1982 70% higher than that for 1952. The efficacy of the policy for the prevention of alcoholism adopted in the period under study is called in question by the results presented.
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Urbina T, Vicent M, Vargas S. [Restorative treatment needs in preschool and schoolchildren in greater Santiago, Chile, 1981]. Rev Dent Chile 1988; 79:92-9. [PMID: 3256033] [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: 01/04/2023]
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Vargas NA, Thomas E, Méndez C, Díaz C, Vargas S, Dazzarola P, Melo W, Pulido N, Flores G, Montt J. [Multicenter study of birth weight in Chile]. Rev Med Chil 1987; 115:361-6. [PMID: 3448748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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