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Ramos-Rincón JM, Ventura PS, Casas-Rojo JM, Mauri M, Bermejo CL, de Latierro AO, Rubio-Rivas M, Mérida-Rodrigo L, Pérez-Casado L, Barrientos-Guerrero M, Giner-Galvañ V, Gallego-Lezaun C, Milián AH, Manzano L, Blázquez-Encinar JC, Solís-Marquínez MN, García MG, Lobo-García J, Valente VAR, Roig-Martí C, León-Téllez M, Tellería-Gómez P, González-Juárez MJ, Gómez-Huelgas R, López-Escobar A, Bermejo CL, Núñez-Cortés JM, Santos JMA, Huelgas RG, Corbella X, Pérez FF, Homs N, Montero A, Mora-Luján JM, Rubio-Rivas M, Bandera VA, Alegría JG, Jiménez-García N, del Pino JL, Escalante MDM, Romero FN, Rodriguez VN, Sierra JO, de Blas PA, Cañas CA, Ayuso B, Morejón JB, Escudero SC, Frías MC, Tejido SC, de Miguel Campo B, Pedroche CD, Simon RD, Reyne AG, Veganzones LI, Huerta LJ, Blanco AL, Gonzalo JL, Lora-Tamayo J, Bermejo CL, de la Calle GM, Godoy RM, Perpiña BO, Ruiz DP, Fernández MS, Montes JT, Suárez AMÁ, Vergés CD, Martínez RFM, Aizpuru EMF, Carrasco AG, Amezua CH, Caleya JFL, Martínez DL, del Mar Martínez López M, Zapico AM, Iscar CO, Casado LP, Martínez MLT, Chamorro LMT, Casas LA, de Oña ÁA, Beato RA, Gonzalo LA, Muñoz JA, Oblitas CMA, García CA, Cebrián MB, Corral JB, Guerrero MB, Estrada ADB, Moreno MC, Fernández PC, Carrillo R, Pérez SC, Muñoz EC, Moreno ADC, Carvajal MCC, de Santos S, Gómez AE, Carracedo EF, Jenaro MMFM, Valle FG, Garcia A, Fernandez-Bravo IG, Leoni MEG, Antúnez MG, Narciso CGS, Gurjian AA, Ibáñez LJ, Olleros CL, Mendo CL, García SL, Jimeno VM, Nohales CM, Núñez-Cortés JM, Ledesma SM, Míguez AM, Delgado CM, Ortega LO, Sánchez SP, Virto AP, Sanz MTP, Llorente BP, Ruiz SP, Fernández-Llamazares GS, Macías MT, Samaniego NT, do Rego AT, Garcia MVV, Villarreal G, Etayo MZ, Lara RA, Fernandez IC, García JCC, García García GM, Granados JG, Sánchez BG, Periáñez FJM, Perez MJP, Pérez JLB, Méndez MLS, Rivera NA, Vieitez AC, del Corral Beamonte E, Manglano JD, Mera IF, del Mar Garcia Andreu M, Aseguinolaza MG, Lezaun CG, Laorden CJ, Murgui RM, Sanz MTM, Ayala-Gutiérrez MM, López RB, Fonseca JB, Buonaiuto VA, Martínez LFC, Palacios LC, Muriel CC, de Windt F, Christophel ATFT, Ocaña PG, Huelgas RG, García JG, Oliver JAH, Jansen-Chaparro S, López-Carmona MD, Quirantes PL, Sampalo AL, Lorenzo-Hernández E, Sevilla JJM, Carmona JM, Pérez-Belmonte LM, de Pedro IP, Pineda-Cantero A, Gómez CR, Ricci M, Cánovas JS, Troncoso JÁ, Fernández FA, Quintana FB, Arenzana CB, Molina SC, Candalija AC, Bengoa GD, de Gea Grela A, de Lorenzo Hernández A, Vidal AD, Capitán CF, Iglesias MFG, Muñoz BG, Gil CRH, Martínez JMH, Hontañón V, Hernández MJJ, Lahoz C, Calvo CM, Gutiérrez JCM, Prieto MM, Robles EM, Saldaña AM, Fernández AM, Prieto JMM, Mozo AN, López CMO, Peláez EP, Pampyn MP, Simón MAQ, Ramos Ramos JC, Ruperto LR, Purificación AS, Bueso TS, Torre RS, Abanedes CIS, Tabares YU, Mayoral MV, Manau JV, del Carmen Beceiro Abad M, Romero MAF, Castro SM, Guillan EMP, Nuñez MP, Fontan PMP, de Larriva APA, Espinal PC, Lista JD, Fuentes-Jiménez F, del Carmen Guerrero Martínez M, Vázquez MJG, Torres JJ, Pérez LL, López-Miranda J, Piedra LM, Orge MM, Vinagre JP, Pérez-Martinez P, Vílchez MER, Martínez AR, Cabrera JLR, Torres-Peña JD, Tomás MA, Balaz D, Tur DB, Navarro RC, Pérez PC, Redondo JC, White ED, Espínola ME, Del Barrio LE, Atiénzar PJE, Cervera CG, Núñez DFG, Navarro FG, Galvañ VG, Uranga AG, Martínez JG, Isasi IH, Villar LL, Sempere VM, Cruz JMN, Fernández SP, García JJP, Pleguezuelos RP, Pérez AR, Ripoll JMS, Mira AS, Wikman-Jorgensen P, Ayllón JAA, Artero A, del Mar Carmona Martín M, Valls MJF, de Mar Fernández Garcés M, Belda ABG, Cruz IL, López MM, Sanchis EM, Gandia JM, Roger LP, Belmonte AMP, García AV, Eisenhofer AA, Milla AA, Pérez IB, Gutiérrez LB, Garay JB, Parra JC, Díaz AC, Da Silva EC, Hernández MC, Díaz RC, Sánchez MJC, Gozalo CC, Martínez VCM, Doblado LD, de la Fuente Moral S, de Santiago AD, Yagüe ID, Velasco ID, Duca AM, del Campo PD, López GE, Palomo EE, Cruz AF, Gómez AG, Prieto SG, Revilla BG, Viejo MÁG, Irusta JG, Merino PG, Abreu EVG, Martín IG, Rojas ÁG, Villanueva AG, Jiménez JH, Estéllez FI, del Estal PL, Sáiz MCM, de Mendoza Fernández C, Urbistondo MM, Vera FM, Seirul-lo MM, Pita SM, Sánchez PAM, Hernández EM, Vargas AM, Concha VMT, De La Torre IM, Rubio EM, de Benito RM, Serrano AM, Palomo PN, Pascual IP, Martín-Vegue AJR, Martínez AR, Olleros CR, Montaud AR, Pizarro YR, García SR, de Domingo DR, Ortiz DS, Chica ES, Almena IS, Martin ES, Chen YT, de Ureta PT, Alijo ÁV, Comendador JMV, Núñez JAV, Yeguas IA, Gómez JA, Cuchillo JB, López IB, Clotet NC, Elías AEC, Manuel EC, de Luque CMC, Benbunan CC, Vilan LD, Hernández CD, Peralta EED, Pérez VE, Fernandez-Castelao S, Saavedra MOF, Klepzig JLG, del Rosario Iguarán Bermúdez M, Ferrer EJ, Rodríguez AM, de Pedro AM, Sánchez RÁM, Bailón MM, Álvarez SM, Orantos MJN, Mata CO, García EO, Mata DO, González CO, Perez-Somarriba J, Mateos PP, Muñoz MER, Regaira XR, Gallardo LMR, Fornie IS, Botrán AS, Robles MS, Urbano ME, González AMV, Martínez MV, Monge Monge D, Pasos EMF, García AV, Comet LS, Giménez LL, Samper UA, Repiso GA, Bruñén JMG, Barrio ML, Martínez MAC, Igual JJG, Fenoll RG, García MA, Monge EA, Rodríguez JÁ, Varela CA, Gòdia MB, Molina MB, Vega MB, Curbelo J, de las Heras Moreno A, Godoy ID, Alvarez ACE, Martín-Caro IF, López-Mosteiro AF, Marquez GG, Blanco MJG, del Álamo Hernández YG, Encina CGR, González NG, Rodríguez CG, Martín NLS, Báez MM, Delgado CM, Caballero PP, Serrano JP, Rodríguez LR, Cortés PR, Franco CR, Roy-Vallejo E, Vega MR, Lloret AS, Moreno BS, Alba MS, Ballesteros JS, Somovilla A, Fernández CS, Tirado MV, Marti AV, Pareja JFP, Fraile IP, Blanco AM, del Castillo Cantero R, López JLV, Lorite IR, Martínez RF, García IS, Rangel LS, Álvarez AA, Juarros OA, López AA, Castiñeira CC, Calviño AC, Sánchez MC, Varela RF, Castro SJF, Trigo AP, Jarel RP, Varea FR, Freán IR, Alonso LR, Pensado FJS, Porto DV, Saavedra CC, Gómez JF, López BG, Garrido MSH, Amorós AIL, Gil SL, de los Reyes Pascual Pérez M, Perea NR, García AT, Lobo JA, Casanovas LF, Amigo JL, Fernández MM, Bermúdez IO, Fernández MP, Rhyman N, Piqueras NV, Pedrajas JNA, García AM, Vargas I, Jiménez IA, González MC, Cobos-Siles M, Corral-Gudino L, Cubero-Morais P, Fernández MG, González JPM, Dehesa MP, Espinosa PS, Blanco SC, Gamboa JOM, Mosteiro CS, Asiain AS, Santos JMA, Barrera ABB, Vela BB, Muiño CB, Fernández CB, Hernáiz RC, López IC, Rojo JMC, Troncoso AC, Romano PC, Deodati F, Santiago AE, Sánchez GGC, Guijarro EG, Sánchez FJG, de la Torre PG, de Guzmán García-Monge M, Luordo D, González MM, Bermejo JAM, Valverde CP, Quero JLP, Rojas FR, García LR, Gonzalo ES, Muñoz FJT, de la Sota JV, Martínez JV, Gómez MG, Sánchez PR, Gonzalez GA, Iraurgi AL, Arostegui AA, Martínez PA, Fernández IMP, Becerro EM, Jiménez AI, Núñez CV, López MA, López EG, Losada MSA, Estévez BR, Muñoz AMA, Fernández MB, Cano V, Moreno RC, Garcia-Tenorio FC, Nájera BDT, González RE, Butenegro MPG, Díez AG, Caverzaschi VG, Pedraza PMG, Moraleja JG, Carvajal RH, Aranda PJ, González RL, Caparachini ÁL, Castañeyra PL, Ancin AL, Garcia JDM, Romero CM, Saiz MJM, Moríñigo HM, Nicolás GM, Platon EM, Oliveri F, Ortiz Ortiz E, Rafael RP, Galán PR, Berrocal MAS, de Ávila VSR, Sierra PT, Aranda YU, Clemente JV, Bergua CY, de la Peña Fernández A, Milián AH, Manrique MA, Erdozain AC, Ruiz ALI, Luque FJB, Carrasco-Sánchez FJ, de-Sousa-Baena M, Leal JD, Rubio AE, Huertas MF, Bravo JAG, Macías AG, Jiménez EG, Jiménez AH, Quintero CL, Reguera CM, Marcos FJM, Beamud FM, Pérez-Aguilar M, Jiménez AP, Castaño VR, dedel AlcazarRío AS, Ruiz LT, González DA, de Zabalza IAP, Hernández SA, Sáenz JC, Dendariena B, del Mazo MG, de Narvajas Urra IM, Hernández SM, Fernández EM, Somovilla JLP, Pejenaute ER, Rodríguez-Solís JB, Osorio LC, del Pilar Fidalgo Montero M, Soriano MIF, Rincón EEL, Hermida AM, Carrilero JM, Santiago JÁP, Robledo MS, Rojas PS, Yebes NJT, Vento V, Vaca LFA, Arnanz AA, García OA, González MB, Sanz PB, Llisto AC, de Pedro Baena S, Del Hoyo Cuenda B, Fabregate-Fuente M, Osorio MAG, Sánchez IG, García AG, Cisneros OAL, Manzano L, Martínez-Lacalzada M, Ortiz BM, Rey-García J, González ER, Díaz CS, Fajardo GS, Carantoña CS, Viteri-Noël A, Zhilina Zhilina S, Claudio GMA, Rodríguez VB, Muñoz CC, Pérez AC, Orbes MVC, Sánchez DE, Revuelta SI, Martín MM, González JIM, Oterino JÁM, Alonso LM, Balbuena SP, García MLP, Prados AR, Rodríguez-Alonso B, Alegría ÁR, Ledesma MS, Pérez RJT, Encinar JCB, Cilleros CM, Martínez IJ, Delange TG, González RF, Noya AG, Ceron CH, Avanzini II, Diez AL, Mato PL, Vizcaya AML, Benítez DP, Zemsch MMP, Expósito LP, Bar MP, González LR, Lara LR, Cabañero D, Ballester MC, Fernández PC, Sánchez RG, Escrig MJ, Amela CM, Gómez LP, Navarro CP, Parra JAT, de Almeida CT, Villarejo MEF, Calvo VP, Otero SP, López BG, Frías CA, Romero VM, Pérez LA, Velado EM, González RA, Boixeda R, Fernández Fernández J, Mármol CL, Navarro MP, Guzmán AR, Fustier AS, Castro JL, Reboiro MLL, González CS, Sala ER, Izuel JMP, Zamrani ZK, Diaz HA, Lopez TD, Pego EM, Pérez CM, Ferro AP, Trigo SS, Sambade DS, Ferrin MT, del Carmen Vázquez Friol M, Maneiro LV, Rodríguez BC, Espartero MEG, Rivas LM, de la Sierra Navas Alcántara M, Tirado-Miranda R, Marquínez MNS, García VA, Suárez DB, Arenas NG, García PM, Copa DC, García AÁ, Álvarez JC, Calderón MJM, Noriega RG, Rubia MC, García JL, Martínez LT, Celeiro JF, Aguilar DEO, Riesco IM, Bécares JV, Mateos AB, García AAT, Casamayor JD, Silvera DG, Díaz AA, Carballo CH, Tejera A, Prieto MJM, Muñoz MBM, Del Arco Delgado JM, Díaz DR, Feria MB, Herrera Herrera FJ, de la Luz Padilla Salazar M, Luis RH, Ledezma EMC, del Mar López Gámez M, Hernández LT, Pérez SC, García SGA, Gainett GC, Hidalgo AG, Daza JM, Peraza MH, Santos RA, Bernabeu-Wittel M, Suárez SR, Nieto M, Miranda LG, Mancera RMG, Torre FE, Quiles CH, Guzmán CC, de la Cuesta JD, Vega JET, del Carmen López Ríos M, Jiménez PD, Franco BB, de Juan CJ, Rivero SG, Tenllado JL, Lara VA, Estrada AG, Ena J, Segado JEG, Ferrer RG, Lorenzo VG, Arroyo RM, García MG, Hernández FJV, González ÁLM, Montes BV, Die RMG, Molinero AM, Regidor MM, Díez RR, Sierra BH, García LFD, Acedo IEA, Cano CMS, García VH, Bernal BR, Jiménez JC, Bazán EC, Reniu AC, Grabalosa JR, Solà JF, De Boulle IC, Xancó CG, Núñez OR, Ripper CJ, Gutiérrez AG, Trallero LER, Novo MFA, Lecumberri JJN, Ruiz NP, Riancho J, García IS, Baena PC, Sevilla JE, Padilla LG, Ronquillo PG, Bustos PG, Botías MN, Taboada JR, Rodríguez MR, Alvarez VA, Suárez NM, Suárez SR, Díaz SS, Pérez LS, Gómez MF, Castaño CM, Rodríguez LM, Vázquez C, Estévanez IC, Gutiérrez CY, Sela MM, Cosío SF, Álvaro CMG, García JL, Piñeiro AP, Viera YC, Rodríguez LC, de Juan Alvarez C, Benitez GF, Escudero LG, Torres JM, Escriche PM, Canteli SP, Pérez MCR, Soler JA, Remolar MB, Álvarez AC, Carlotti DD, Gimeno MJE, Juana SF, López PG, Soler MTG, de la Sota DP, Castellanos GP, Catalán IP, Martí CR, Monzó PR, Padilla JR, Gaya NT, Blasco JU, Pascual MAM, Vidal LJ, Conesa AA, Rivas MCA, Alsina MH, Romero JM, Diez-Canseco AMU, Martínez FA, Vásquez EA, Stablé JCE, Belmonte AH, Peiró AM, Goñi RM, Castellanos MCP, Belda BS, Navarro DV, Lombraña AS, Ugartondo JC, Plaza ABM, Asensio AN, Alves BP, López NV, Téllez ML, Epelde F, Torrente I, Vasco PG, Santacruz AR, Muñoz AV, Giner MJE, Calvo-Sotelo AE, Sardón EG, González JG, Salazar LG, Garcia AA, Días IM, Gomez AS, Matos MC, Gaspar SN, Nieto AG, Méndez RG, Álvarez AR, Hernández OP, Ramírez AP, González MCM, Lorite MNN, Navarrete LG, Negrin JCA, González JFA, Jiménez I, Toledo PO, Ponce EM, Torres XTE, González SG, Fernández CN, Gómez PT, Gisbert OA, Llistosella MB, Casanova PC, Flores AG, Hinojo AG, Martínez AIM, del Carmen Nogales Nieves M, Austrui AR, Cervantes AZ, Castro VA, Lomba AMB, Aparicio RB, Morales MF, Villar JMF, Monteagudo MTL, García CP, Ferreira LR, Llovo DS, Feijoo MBV, Romero JAM, de Albornoz JLSC, Pérez MJS, Martín ES, Astrua TC, Giraldo PTG, Juárez MJG, Fernandez VM, Echevarry AVR, Arche JFV, Rivero MGR, Martínez AM, Bernad RV, Limia C, Fernández CA, Fernández AT, Fajardo LP, de Vega Santos T, Ruiz AL, Míguez HM. Validation of the RIM Score-COVID in the Spanish SEMI-COVID-19 Registry. Intern Emerg Med 2023; 18:907-915. [PMID: 36680737 PMCID: PMC9862219 DOI: 10.1007/s11739-023-03200-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 01/09/2023] [Indexed: 01/22/2023]
Abstract
The significant impact of COVID-19 worldwide has made it necessary to develop tools to identify patients at high risk of severe disease and death. This work aims to validate the RIM Score-COVID in the SEMI-COVID-19 Registry. The RIM Score-COVID is a simple nomogram with high predictive capacity for in-hospital death due to COVID-19 designed using clinical and analytical parameters of patients diagnosed in the first wave of the pandemic. The nomogram uses five variables measured on arrival to the emergency department (ED): age, sex, oxygen saturation, C-reactive protein level, and neutrophil-to-platelet ratio. Validation was performed in the Spanish SEMI-COVID-19 Registry, which included consecutive patients hospitalized with confirmed COVID-19 in Spain. The cohort was divided into three time periods: T1 from February 1 to June 10, 2020 (first wave), T2 from June 11 to December 31, 2020 (second wave, pre-vaccination period), and T3 from January 1 to December 5, 2021 (vaccination period). The model's accuracy in predicting in-hospital COVID-19 mortality was assessed using the area under the receiver operating characteristics curve (AUROC). Clinical and laboratory data from 22,566 patients were analyzed: 15,976 (70.7%) from T1, 4,233 (18.7%) from T2, and 2,357 from T3 (10.4%). AUROC of the RIM Score-COVID in the entire SEMI-COVID-19 Registry was 0.823 (95%CI 0.819-0.827) and was 0.834 (95%CI 0.830-0.839) in T1, 0.792 (95%CI 0.781-0.803) in T2, and 0.799 (95%CI 0.785-0.813) in T3. The RIM Score-COVID is a simple, easy-to-use method for predicting in-hospital COVID-19 mortality that uses parameters measured in most EDs. This tool showed good predictive ability in successive disease waves.
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Affiliation(s)
| | - Paula Sol Ventura
- Fundacio Institut d’Investigacio en Ciències de La Salut Germans Trias I Pujol (IGTP), 08916 Badalona, Spain
| | - José-Manuel Casas-Rojo
- Internal Medicine Department, Infanta Cristina University Hospital, Parla, 28981 Madrid, Spain
| | - Marc Mauri
- Data Scientist, Kaizen AI, Barcelona, Spain
| | | | | | - Manuel Rubio-Rivas
- Department of Internal Medicine, Bellvitge University Hospital, Hospitalet de Llobregat, Barcelona, Spain
| | | | | | | | - Vicente Giner-Galvañ
- Internal Medicine Department. Hospital, Clínico Universitario de Sant Joan d’Alacant, Alicante, Spain
| | | | | | - Luis Manzano
- Internal Medicine Department, Ramón y Cajal University Hospital, Madrid, Spain
| | | | | | | | | | | | | | | | | | | | - Ricardo Gómez-Huelgas
- Internal Medicine Department, Regional University Hospital of Málaga, Biomedical Research Institute of Málaga (IBIMA), University of Málaga (UMA), Málaga, Spain
| | - Alejandro López-Escobar
- Pediatrics Department, Clinical Research Unit, Hospital Universitario Vithas Madrid La Milagrosa, Fundación Vithas. Madrid, Madrid, Spain
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Salcedo MF, Mansilla AY, Colman SL, Iglesias MJ, Alvarez VA, Casalongué CA. Efficacy of an organically modified bentonite to adsorb 2,4-dichlorophenoxyacetic acid (2,4-D) and prevent its phytotoxicity. J Environ Manage 2021; 297:113427. [PMID: 34346399 DOI: 10.1016/j.jenvman.2021.113427] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/25/2021] [Accepted: 07/27/2021] [Indexed: 06/13/2023]
Abstract
The herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) is widely used due to it selective action, and preferential control of dicotyledonous weeds affecting cereal crops. Physiological responses of sensitive dicotyledonous plants to 2,4-D include growth retardation, senescence, and cell death. Due to soil and water contamination by agricultural practices, 2,4-D constitutes a potential risk to non-target plant species. In this work, the potential advantage of using organic modified bentonite (Bent) to adsorb 2,4-D and therefore mitigate damage produced by this herbicide on sensitive not-target vegetable species was investigated. Dodecylamine (DDA) was used as an organic modifier to change the hydrophilic nature of Bent into an organophilic matrix. The adsorption performances of 2,4-D by Bent-DDA were analyzed. The maximum adsorptions of 2,4-D (22.1 mg/L) from aqueous solution containing 1.0 or 2.5 mg/mL Bent-DDA were 40 and 80 %, respectively. The physical interaction of Bent-DDA with 2,4-D was characterized by Wide Angle X-ray Scattering (WAXS) and thermogravimetric analysis (TGA). The biological functionality of Bent-DDA matrix as 2,4-D adsorbent was tested in a bioassay in the Arabidopsis thaliana plant model system. The primary root growth of Arabidopsis seedlings is strongly inhibited by low concentrations of 2,4-D. Arabidopsis seedlings submitted to Bent-DDA pre-treated herbicide aqueous solution showed similar root growth than 2,4-D non-treated seedlings. Finally, the ability of Bent-DDA to prevent 2,4-D phytotoxicity was exploratory investigated in lettuce plants. Lettuce plants pre-treated with 20 μg/mL Bent-DDA showed reduced sensitivity to 2,4-D including an increment on chlorophyll content and biomass compared with non-treated plants. Our findings revealed a promising scenario for the application of Bent-DDA as an effective adsorbent of 2,4-D at productive scale.
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Affiliation(s)
- M F Salcedo
- Instituto de Investigaciones Biológicas (IIB). UE CONICET-UNMDP, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata (UNMDP) y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Deán Funes, 3250, (7600), Mar del Plata, Argentina
| | - A Y Mansilla
- Instituto de Investigaciones Biológicas (IIB). UE CONICET-UNMDP, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata (UNMDP) y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Deán Funes, 3250, (7600), Mar del Plata, Argentina.
| | - S L Colman
- Instituto de Investigaciones Biológicas (IIB). UE CONICET-UNMDP, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata (UNMDP) y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Deán Funes, 3250, (7600), Mar del Plata, Argentina
| | - M J Iglesias
- Instituto de Investigaciones Biológicas (IIB). UE CONICET-UNMDP, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata (UNMDP) y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Deán Funes, 3250, (7600), Mar del Plata, Argentina; Laboratorio de Fisiología y Biología Molecular, Departamento de Fisiología, Biología Molecular y Celular, IFIBYNE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, Argentina
| | - V A Alvarez
- Grupo de Materiales Compuestos Termoplásticos (CoMP), Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA). UE CONICET-UNMDP, Facultad de Ingeniería, Universidad Nacional de Mar del Plata (UNMDP) y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Colón, 10850, (7600), Mar del Plata, Argentina
| | - C A Casalongué
- Instituto de Investigaciones Biológicas (IIB). UE CONICET-UNMDP, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata (UNMDP) y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Deán Funes, 3250, (7600), Mar del Plata, Argentina
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3
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Rodenak-Kladniew B, Noacco N, Pérez de Berti I, Stewart SJ, Cabrera AF, Alvarez VA, García de Bravo M, Durán N, Castro GR, Islan GA. Design of magnetic hybrid nanostructured lipid carriers containing 1,8-cineole as delivery systems for anticancer drugs: Physicochemical and cytotoxic studies. Colloids Surf B Biointerfaces 2021; 202:111710. [PMID: 33765626 DOI: 10.1016/j.colsurfb.2021.111710] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 02/09/2021] [Accepted: 03/16/2021] [Indexed: 12/18/2022]
Abstract
The development of versatile carriers to deliver chemotherapeutic agents to specific targets with establishing drug release kinetics and minimum undesirable side effects is becoming a promising relevant tool in the medical field. Magnetic hybrid nanostructured lipid carriers (NLC) were prepared by incorporation of 1,8-cineole (CN, a monoterpene with antiproliferative properties) and maghemite nanoparticles (MNPs) into a hybrid matrix composed of myristyl myristate coated with chitosan. Hybrid NLC characterized by DLS and TEM confirmed the presence of positively charged spherical nanoparticles of around 250 nm diameter and +10.2 mV of Z-potential. CN encapsulation into the lipid core was greater than 75 % and effectively released in 24 h. Modification of the crystalline structure of nanoparticles after incorporation of CN and MNPs was observed by XRD, DSC, and TGA analyses. Superparamagnetic NLC behavior was verified by recording the magnetization using a vibrating scanning magnetometer. NLC resulted in more cytotoxic than free CN in HepG2 and A549 cell lines. Particularly, viability inhibition of HepG2 and A549 cells was increased from 35 % to 55 % and from 38 % to 61 %, respectively, when 8 mM CN was incorporated into the lipid NPs at 24 h. Green fluorescent-labeled NLC with DIOC18 showed an enhanced cellular uptake with chitosan-coated NLC. Besides, no cytotoxicity of the formulations in normal WI-38 cells was observed, suggesting that the developed hybrid NLC system is a safe and good potential candidate for the selective delivery and potentiation of anticancer drugs.
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Affiliation(s)
- B Rodenak-Kladniew
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), CONICET-UNLP, CCT-La Plata, Facultad de Ciencias Médicas, La Plata, Argentina
| | - N Noacco
- Laboratorio de Nanobiomateriales, CINDEFI, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP) -CONICET (CCT La Plata), Calle 47 y 115, B1900AJI, La Plata, Buenos Aires, Argentina
| | - I Pérez de Berti
- CINDECA, CONICET-CICPBA-Universidad Nacional de La Plata, Facultad de Ciencias Exactas, Calle 47 N 257, 1900, La Plata, Argentina
| | - S J Stewart
- IFLP-CONICET, Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C. C. 67, 1900, La Plata, Argentina
| | - A F Cabrera
- IFLP-CONICET, Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C. C. 67, 1900, La Plata, Argentina
| | - V A Alvarez
- Grupo de Materiales Compuestos Termoplásticos (CoMP), Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), Facultad de Ingeniería, Universidad Nacional de Mar del Plata (UNMdP) y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Colón 10850, 7600, Mar del Plata, Argentina
| | - M García de Bravo
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), CONICET-UNLP, CCT-La Plata, Facultad de Ciencias Médicas, La Plata, Argentina
| | - N Durán
- Laboratory of Urogenital Carcinogenesis and Immunotherapy, Department of Structural and Functional Biology, Biology Institute, University of Campinas, Campinas, SP, Brazil; Nanomedicine Research Unit (Nanomed), Federal University of ABC (UFABC), Santo André, SP, Brazil
| | - G R Castro
- Laboratorio de Nanobiomateriales, CINDEFI, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP) -CONICET (CCT La Plata), Calle 47 y 115, B1900AJI, La Plata, Buenos Aires, Argentina; Max Planck Laboratory for Structural Biology, Chemistry and Molecular Biophysics of Rosario (MPLbioR, UNR-MPIbpC). Partner Laboratory of the Max Planck Institute for Biophysical Chemistry (MPIbpC, MPG). Centro de Estudios Interdisciplinarios (CEI), Universidad Nacional de Rosario, Maipú 1065, S2000, Rosario, Santa Fe, Argentina
| | - G A Islan
- Laboratorio de Nanobiomateriales, CINDEFI, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP) -CONICET (CCT La Plata), Calle 47 y 115, B1900AJI, La Plata, Buenos Aires, Argentina.
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4
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Rodenak-Kladniew B, Scioli Montoto S, Sbaraglini ML, Di Ianni M, Ruiz ME, Talevi A, Alvarez VA, Durán N, Castro GR, Islan GA. Hybrid Ofloxacin/eugenol co-loaded solid lipid nanoparticles with enhanced and targetable antimicrobial properties. Int J Pharm 2019; 569:118575. [PMID: 31356956 DOI: 10.1016/j.ijpharm.2019.118575] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Revised: 07/18/2019] [Accepted: 07/25/2019] [Indexed: 02/04/2023]
Abstract
In the global context of an imminent emergence of multidrug-resistant microorganisms, the present work combined the use of nanotechnology and the therapeutic benefits of natural compounds as a strategy to potentiate antimicrobial action of the wide-spectrum antibiotic Ofloxacin (Ofx). Hybrid solid lipid nanoparticles (SLN) were synthesized by incorporation of chitosan (Chi, a cationic biopolymer with antimicrobial activity) and eugenol (Eu, a phenolic compound that interferes with bacterial quorum sensing) into a lipid matrix by hot homogenization/ultrasonication method. The developed SLN/Chi/Eu sustainably released the encapsulated Ofx for 24 h. Characterization by DLS, TEM, DSC, TGA and XRD revealed the presence of positively charged spherical nanoparticles with diameters around 300 nm and Ofx entrapped in amorphous state. The SLN exhibited an enhanced bactericidal activity against Pseudomonas aeruginosa and Staphylococcus aureus. The minimum inhibitory concentration (MIC) for free and nanoencapsulated Ofx formulations was below 1.0 µg/ml. The MIC values decreased by 6.1- to 16.1-fold when Ofx was encapsulated in SLN/Chi/Eu. Fluorescent-labeled nanoparticles had the ability to interact with the bacterial cell membrane. Selective toxicity of SLN/Chi/Eu-Ofx was tested in the range of 0.3-30.0 µg/ml and showed no toxicity up to 3.0 µg/ml Ofx in human cell models (A549 and Wi-38) at 24 h and 48 h exposure. It was proved that the administration of hybrid SLN to mice by dry powder inhalation reached therapeutic Ofx levels in lungs.
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Affiliation(s)
- B Rodenak-Kladniew
- Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP), CONICET-UNLP, CCT-La Plata, Facultad de Ciencias Médicas, La Plata, Argentina
| | - S Scioli Montoto
- Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), Calle 47 y 115 (B1900AJI), La Plata, Buenos Aires, Argentina
| | - M L Sbaraglini
- Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), Calle 47 y 115 (B1900AJI), La Plata, Buenos Aires, Argentina
| | - M Di Ianni
- Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), Calle 47 y 115 (B1900AJI), La Plata, Buenos Aires, Argentina
| | - M E Ruiz
- Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), Calle 47 y 115 (B1900AJI), La Plata, Buenos Aires, Argentina
| | - A Talevi
- Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), Calle 47 y 115 (B1900AJI), La Plata, Buenos Aires, Argentina
| | - V A Alvarez
- Grupo de Materiales Compuestos Termoplásticos (CoMP), Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), Facultad de Ingeniería, Universidad Nacional de Mar del Plata (UNMDP) - CONICET, Av. Colón 10850 (B7608FDQ), Mar del Plata, Buenos Aires, Argentina
| | - N Durán
- Institute of Biology, Universidade Estadual de Campinas, C.P. 6159, CEP 13083-970, Campinas, SP, Brazil; NanoMed Center, Federal University of ABC (UFABC), Santo André, SP, Brazil
| | - G R Castro
- Laboratorio de Nanobiomateriales, CINDEFI, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP) -CONICET (CCT La Plata), Calle 47 y 115, (B1900AJI), La Plata, Buenos Aires, Argentina
| | - G A Islan
- Laboratorio de Nanobiomateriales, CINDEFI, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP) -CONICET (CCT La Plata), Calle 47 y 115, (B1900AJI), La Plata, Buenos Aires, Argentina.
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Hutchison MA, Gu X, Adrover MF, Lee MR, Hnasko TS, Alvarez VA, Lu W. Genetic inhibition of neurotransmission reveals role of glutamatergic input to dopamine neurons in high-effort behavior. Mol Psychiatry 2018; 23:1213-1225. [PMID: 28194005 PMCID: PMC5555825 DOI: 10.1038/mp.2017.7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 11/29/2016] [Accepted: 12/28/2016] [Indexed: 02/07/2023]
Abstract
Midbrain dopamine neurons are crucial for many behavioral and cognitive functions. As the major excitatory input, glutamatergic afferents are important for control of the activity and plasticity of dopamine neurons. However, the role of glutamatergic input as a whole onto dopamine neurons remains unclear. Here we developed a mouse line in which glutamatergic inputs onto dopamine neurons are specifically impaired, and utilized this genetic model to directly test the role of glutamatergic inputs in dopamine-related functions. We found that while motor coordination and reward learning were largely unchanged, these animals showed prominent deficits in effort-related behavioral tasks. These results provide genetic evidence that glutamatergic transmission onto dopaminergic neurons underlies incentive motivation, a willingness to exert high levels of effort to obtain reinforcers, and have important implications for understanding the normal function of the midbrain dopamine system.
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Affiliation(s)
- M A Hutchison
- Synapse and Neural Circuit Research Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - X Gu
- Synapse and Neural Circuit Research Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - M F Adrover
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - M R Lee
- Synapse and Neural Circuit Research Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - T S Hnasko
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - V A Alvarez
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - W Lu
- Synapse and Neural Circuit Research Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA,Synapse and Neural Circuit Research Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, 3C 1000, 35 Convent Drive, Bethesda, MD 20892, USA. E-mail:
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6
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Scioli Montoto S, Sbaraglini ML, Talevi A, Couyoupetrou M, Di Ianni M, Pesce GO, Alvarez VA, Bruno-Blanch LE, Castro GR, Ruiz ME, Islan GA. Carbamazepine-loaded solid lipid nanoparticles and nanostructured lipid carriers: Physicochemical characterization and in vitro/in vivo evaluation. Colloids Surf B Biointerfaces 2018; 167:73-81. [PMID: 29627680 DOI: 10.1016/j.colsurfb.2018.03.052] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 02/21/2018] [Accepted: 03/30/2018] [Indexed: 01/16/2023]
Abstract
Solid lipid nanoparticles (SLN) and nanostructured lipid carriers (NLC) represent promising alternatives for drug delivery to the central nervous system. In the present work, four different nanoformulations of the antiepileptic drug Carbamazepine (CBZ) were designed and prepared by the homogenization/ultrasonication method, with encapsulation efficiencies ranging from 82.8 to 93.8%. The formulations remained stable at 4 °C for at least 3 months. Physicochemical and microscopic characterization were performed by photon correlation spectroscopy (PCS), transmission electron microscopy (TEM), atomic force microscopy (AFM); thermal properties by differential scanning calorimetry (DSC), thermogravimetry (TGA) and X-ray diffraction analysis (XRD). The results indicated the presence of spherical shape nanoparticles with a mean particle diameter around 160 nm in a narrow size distribution; the entrapped CBZ displayed an amorphous state. The in vitro release profile of CBZ fitted into a Baker-Lonsdale model for spherical matrices and almost the 100% of the encapsulated drug was released in a controlled manner during the first 24 h. The apparent permeability of CBZ-loaded nanoparticles through a cell monolayer model was similar to that of the free drug. In vivo experiments in a mice model of seizure suggested protection by CBZ-NLC against seizures for at least 2 h after intraperitoneal administration. The developed CBZ-loaded lipid nanocarriers displayed optimal characteristics of size, shape and drug release and possibly represent a promising tool to improve the treatment of refractory epilepsy linked to efflux transporters upregulation.
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Affiliation(s)
- S Scioli Montoto
- Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), Calle 47 y 115, B1900AJI, La Plata, Buenos Aires, Argentina
| | - M L Sbaraglini
- Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), Calle 47 y 115, B1900AJI, La Plata, Buenos Aires, Argentina
| | - A Talevi
- Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), Calle 47 y 115, B1900AJI, La Plata, Buenos Aires, Argentina
| | - M Couyoupetrou
- Departamento de Farmacología, Instituto Nacional de Medicamentos (INAME), Administración Nacional de Medicamentos, Alimentos y Tecnología Médica (ANMAT), CABA, Buenos Aires, Argentina
| | - M Di Ianni
- Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), Calle 47 y 115, B1900AJI, La Plata, Buenos Aires, Argentina
| | - G O Pesce
- Departamento de Farmacología, Instituto Nacional de Medicamentos (INAME), Administración Nacional de Medicamentos, Alimentos y Tecnología Médica (ANMAT), CABA, Buenos Aires, Argentina
| | - V A Alvarez
- Grupo de Materiales Compuestos de Matriz Polimérica (CoMP), Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), Facultad de Ingeniería, Universidad Nacional de Mar del Plata (UNMDP) - CONICET, Solis 7575, B7608FDQ, Mar del Plata, Buenos Aires, Argentina
| | - L E Bruno-Blanch
- Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), Calle 47 y 115, B1900AJI, La Plata, Buenos Aires, Argentina
| | - G R Castro
- Laboratorio de Nanobiomateriales, CINDEFI, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP) -CONICET (CCT La Plata), Calle 47 y 115, B1900AJI, La Plata, Buenos Aires, Argentina
| | - M E Ruiz
- Laboratorio de Investigación y Desarrollo de Bioactivos (LIDeB), Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), Calle 47 y 115, B1900AJI, La Plata, Buenos Aires, Argentina.
| | - G A Islan
- Laboratorio de Nanobiomateriales, CINDEFI, Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP) -CONICET (CCT La Plata), Calle 47 y 115, B1900AJI, La Plata, Buenos Aires, Argentina.
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7
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Hutchison MA, Gu X, Adrover MF, Lee MR, Hnasko TS, Alvarez VA, Lu W. Correction: Genetic inhibition of neurotransmission reveals role of glutamatergic input to dopamine neurons in high-effort behavior. Mol Psychiatry 2018; 23:1970. [PMID: 29459796 PMCID: PMC6887840 DOI: 10.1038/mp.2018.3] [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] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In Figure 1e and f, "F4 control" should be "Cre/tdTomato" and "F4Cre KO" should be "F4Cre/tdTomato". In addition, in the Figure1f legend, the first sentence should end with "(Cre/tdTomato: n = 10, F4Cre/tdTomato: n = 14)".In the 'Materials and Methods' section, under 'Electrophysiology,' the n values for evoked action potential recordings were omitted. The sentence 'For high-frequency stimulus-induced action potentials, the stimulus electrode was placed in the rostral part of VTA and a train of 100 Hz stimuli (1 s) was applied' should end with '(Cre/tdTomato: n=10, F4Cre/tdTomato: n=14).'Later in the same paragraph, in 'For recording evoked EPSCs (Cre/tdTomato, n=13, F4Cre/tdTomato, n=15; AMPA EPSCs were recorded at -70 mV and NMDA EPSCs were recorded at +40 mV)', the phrase 'Cre/tdTomato, n=13, F4Cre/tdTomato, n=15' should be deleted; those n values should have appeared at the end of the later sentence beginning 'Miniature ESPCs...'. The complete, corrected sentence is 'Miniature EPSCs (mEPSCs) were acquired in the presence of 0.5-1 μM TTX and 100 μM picrotoxin and semiautomatically detected by offline analysis using in-house software in Igor Pro (Wavemetrics, Portland, OR, USA) (Cre/tdTomato, n=13, F4Cre/tdTomato, n=15).'Finally, in the 'Materials and Methods' section, third sentence under 'Immunohistochemistry,' information for one TH antibody was omitted. The list of antibodies should end with 'or Millipore MAB5280, 1:1000-1:2000.'
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Affiliation(s)
- M A Hutchison
- 0000 0001 2297 5165grid.94365.3dSynapse and Neural Circuit Research Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD USA
| | - X Gu
- 0000 0001 2297 5165grid.94365.3dSynapse and Neural Circuit Research Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD USA
| | - M F Adrover
- 0000 0004 0481 4802grid.420085.bNational Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD USA
| | - M R Lee
- 0000 0001 2297 5165grid.94365.3dSynapse and Neural Circuit Research Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD USA
| | - T S Hnasko
- 0000 0001 2107 4242grid.266100.3Department of Neurosciences, University of California San Diego, La Jolla, CA USA
| | - V A Alvarez
- 0000 0004 0481 4802grid.420085.bNational Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD USA
| | - W Lu
- Synapse and Neural Circuit Research Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA.
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Skirzewski M, Karavanova I, Shamir A, Erben L, Garcia-Olivares J, Shin JH, Vullhorst D, Alvarez VA, Amara SG, Buonanno A. ErbB4 signaling in dopaminergic axonal projections increases extracellular dopamine levels and regulates spatial/working memory behaviors. Mol Psychiatry 2018; 23:2227-2237. [PMID: 28727685 PMCID: PMC5775946 DOI: 10.1038/mp.2017.132] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 03/13/2017] [Accepted: 04/04/2017] [Indexed: 02/07/2023]
Abstract
Genetic variants of Neuregulin 1 (NRG1) and its neuronal tyrosine kinase receptor ErbB4 are associated with risk for schizophrenia, a neurodevelopmental disorder characterized by excitatory/inhibitory imbalance and dopamine (DA) dysfunction. To date, most ErbB4 studies have focused on GABAergic interneurons in the hippocampus and neocortex, particularly fast-spiking parvalbumin-positive (PV+) basket cells. However, NRG has also been shown to modulate DA levels, suggesting a role for ErbB4 signaling in dopaminergic neuron function. Here we report that ErbB4 in midbrain DAergic axonal projections regulates extracellular DA levels and relevant behaviors. Mice lacking ErbB4 in tyrosine hydroxylase-positive (TH+) neurons, but not in PV+ GABAergic interneurons, exhibit different regional imbalances of basal DA levels and fail to increase DA in response to local NRG1 infusion into the dorsal hippocampus, medial prefrontal cortex and dorsal striatum measured by reverse microdialysis. Using Lund Human Mesencephalic (LUHMES) cells, we show that NRG/ErbB signaling increases extracellular DA levels, at least in part, by reducing DA transporter (DAT)-dependent uptake. Interestingly, TH-Cre;ErbB4f/f mice manifest deficits in learning, spatial and working memory-related behaviors, but not in numerous other behaviors altered in PV-Cre;ErbB4f/f mice. Importantly, microinjection of a Cre-inducible ErbB4 virus (AAV-ErbB4.DIO) into the mesencephalon of TH-Cre;ErbB4f/f mice, which selectively restores ErbB4 expression in DAergic neurons, rescues DA dysfunction and ameliorates behavioral deficits. Our results indicate that direct NRG/ErbB4 signaling in DAergic axonal projections modulates DA homeostasis, and that NRG/ErbB4 signaling in both GABAergic interneurons and DA neurons contribute to the modulation of behaviors relevant to psychiatric disorders.
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Affiliation(s)
- M Skirzewski
- 0000 0001 2297 5165grid.94365.3dSection on Molecular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD USA
| | - I Karavanova
- 0000 0001 2297 5165grid.94365.3dSection on Molecular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD USA
| | - A Shamir
- 0000 0001 2297 5165grid.94365.3dSection on Molecular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD USA
| | - L Erben
- 0000 0001 2297 5165grid.94365.3dSection on Molecular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD USA ,0000 0001 2240 3300grid.10388.32Institute of Molecular Psychiatry, University of Bonn, Bonn, Germany
| | - J Garcia-Olivares
- 0000 0001 2297 5165grid.94365.3dLaboratory of Molecular and Cellular Neurobiology, National Institute of Mental Health, National Institutes of Health, Bethesda, MD USA
| | - J H Shin
- 0000 0001 2297 5165grid.94365.3dLaboratory for Integrative Neuroscience, Section on Neuronal Structure, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD USA
| | - D Vullhorst
- 0000 0001 2297 5165grid.94365.3dSection on Molecular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD USA
| | - V A Alvarez
- 0000 0001 2297 5165grid.94365.3dLaboratory for Integrative Neuroscience, Section on Neuronal Structure, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD USA
| | - S G Amara
- 0000 0001 2297 5165grid.94365.3dLaboratory of Molecular and Cellular Neurobiology, National Institute of Mental Health, National Institutes of Health, Bethesda, MD USA
| | - A Buonanno
- Section on Molecular Neurobiology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD, USA.
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Dobbs LK, Lemos JC, Alvarez VA. Restructuring of basal ganglia circuitry and associated behaviors triggered by low striatal D2 receptor expression: implications for substance use disorders. Genes Brain Behav 2017; 16:56-70. [PMID: 27860248 PMCID: PMC5243158 DOI: 10.1111/gbb.12361] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 11/14/2016] [Accepted: 11/14/2016] [Indexed: 01/11/2023]
Abstract
Dopamine D2 receptors (D2Rs) consistently emerge as a critical substrate for the etiology of some major psychiatric disorders. Indeed, a central theory of substance use disorders (SUDs) postulates that a reduction in D2R levels in the striatum is a determining factor that confers vulnerability to abuse substances. A large number of clinical and preclinical studies strongly support this link between SUDs and D2Rs; however, identifying the mechanism by which low D2Rs facilitate SUDs has been hindered by the complexity of circuit connectivity, the heterogeneity of D2R expression and the multifaceted constellation of phenotypes observed in SUD patient. Animal models are well‐suited for understanding the mechanisms because they allow access to the circuitry and the genetic tools that enable a dissection of the D2R heterogeneity. This review discusses recent findings on the functional role of D2Rs and highlights the distinctive contributions of D2Rs expressed on specific neuronal subpopulations to the behavioral responses to stimulant drugs. A circuit‐wide restructuring of local and long‐range inhibitory connectivity within the basal ganglia is observed in response to manipulation of striatal D2R levels and is accompanied by multiple alterations in dopamine‐dependent behaviors. Collectively, these new findings provide compelling evidence for a critical role of striatal D2Rs in shaping basal ganglia connectivity; even among neurons that do not express D2Rs. These findings from animal models have deep clinical implications for SUD patients with low levels D2R availability where a similar restructuring of basal ganglia circuitry is expected to take place.
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Affiliation(s)
- L K Dobbs
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - J C Lemos
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - V A Alvarez
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
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Rodríguez Guardado A, Maradona Hidalgo JA, Pérez González F, Cartón Sánchez JA, Blanco A, Rial JC, Asensi Alvarez V. Estudio comparativo de la meningitis posquirúrgica por Staphylococcus aureus sensible y resistente a meticilina. Med Clin (Barc) 2005; 124:102-3. [PMID: 15710095 DOI: 10.1157/13070850] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [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: 11/21/2022]
Abstract
BACKGROUND AND OBJECTIVE In recent years, meningitis caused by methicillin-resistant S. aureus has increased. This study was undertaken to compare the clinical characteristics and prognosis of methicillin-resistant S. aureus (MRSA) postneurosurgical meningitis and methicillin-sensible S. aureus (MSSA) postneurosurgical meningitis. PATIENTS AND METHODS Twenty-five episodes of postneurosurgical meningitis due to S. aureus (13 methicillin-resistant strains) seen during a ten-year period were retrospectively reviewed. RESULTS Most common underlying diseases were: intracerebral hemorrhage (50% of MRSA patients and 46% of MSSA patients) and neoplasm (53% of MRSA patients and 33% of MSSA patients). Eleven patients (6 of them with MRSA infection) had received antibiotic treatment previously. Thirteen patients were carriers of intraventricular catheters (8 with MRSA infection), 5 wore a ventriculoperitoneal shunt (4 with infections by MSSA), 5 cases had a CSF leakage (4 with infections by MRSA), and one patient with infection by MSSA wore an epidural catheter. Fifteen patients were cured (7 with MRSA infection), and 8 died due to the infection (27% with MSSA infection and 38% with MRSA infection). CONCLUSIONS The prognosis of postneurosurgical meningitis by S. aureus does not depend on the presence of resistance to methicillin. Nowadays, the intravenous administration of vancomycin is the treatment of choice in MRSA meningitis.
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Van Bockstaele EJ, Garcia-Hernandez F, Fox K, Alvarez VA, Williams JT. Expression of connexins during development and following manipulation of afferent input in the rat locus coeruleus. Neurochem Int 2004; 45:421-8. [PMID: 15145556 DOI: 10.1016/j.neuint.2003.08.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2003] [Revised: 08/25/2003] [Accepted: 08/28/2003] [Indexed: 10/26/2022]
Abstract
Synchronous activity of locus coeruleus (LC) neurons during early postnatal development is regulated, in part, by electrotonic coupling. Connexin (Cx) proteins that make up gap junction channels are localized to both neurons and glia in the LC during this period. In adult rats, however, synchrony exists only under certain experimental conditions. The expression of Cx proteins was examined using western blot analysis at several developmental time points. Immunoblot analysis revealed little to no expression of Cx26 while Cx32, Cx43 and Cx36 were present at all time points examined. A progressive increase in Cx43 was identified from the first postnatal week through adulthood. Immunocytochemical detection of Cx36 and Cx43 in adult LC showed that Cx36 was associated with neuronal processes while Cx43 was localized to glia. In adult LC, in vitro intracellular recordings combined with neurobiotin injections confirmed the presence of gap junctional communication albeit to a lesser extent than in early postnatal periods. The degree to which synaptic inputs to LC neurons impact on Cx protein expression was also evaluated. Samples of the LC from rats that received an electrolytic lesion of the amygdala were processed for western blot analysis of Cx36 and Cx43. The predominantly neuronal Cx36 exhibited an increase in expression while the glial Cx43 was unchanged. The present results indicate that, despite subtype-specific changes during development, several Cx proteins are expressed in the adult LC. In addition, manipulating afferent input to the LC, in adult rats, results in increases in neuronal Cx protein levels but not in glial Cx levels suggesting that altering synaptic inputs to the LC may alter synchronous activity in noradrenergic neurons.
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Affiliation(s)
- E J Van Bockstaele
- Department of Neurosurgery, Farber Institute of Neurosciences, Thomas Jefferson University, 1020 Locust Street, Suite 520, Philadelphia, PA 19107, USA.
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Rodríguez Guardado A, Maradona Hidalgo JA, Asensi Alvarez V, Cartón Sánchez JA. Grado de replicación del virus de la hepatitis C y aparición de hepatotoxicidad por nevirapina en pacientes con infección por el VIH. Med Clin (Barc) 2004; 122:317. [PMID: 15030745 DOI: 10.1016/s0025-7753(04)74218-9] [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] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Rodríguez Guardado A, Maradona Hidalgo JA, Cartón Sánchez JA, Asensi Alvarez V. [Interruption of antirretroviral treatment in the clinical practice]. Med Clin (Barc) 2002; 118:597. [PMID: 12015953 DOI: 10.1016/s0025-7753(02)72462-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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González Mediero JA, Montero Gómez J, Alvarez VA, Alvarez Fernández F, Urrutia Avisrror M. [Cystine calculi: x-ray diffraction study. Infrared spectroscopy and SEM]. ARCH ESP UROL 1992; 45:435-43. [PMID: 1510474] [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: 12/27/2022]
Abstract
The present study investigated cystinuria and cystine calculi. Inexplicably, of 987 calculi that had been analyzed ultrastructurally at the Department of Urology of the University Hospital of Salamanca over a period of 15 years only 3 (0.3%) were cystine. The foregoing finding does not coincide with the 0.5-1% incidence reported in the world literature. Apart from the chemical analyses, infrared spectroscopy disclosed the typical findings of multiple bands 1600-625 cm-1. Analysis by x-ray diffraction revealed a slight variation from the ASTM values. One of the calculi, which we considered to be a mixed calculus (probably of calcium phosphate), showed a peak at 43 degrees, instead of the usual 34.5. Scanning electron microscopy disclosed two forms of crystallization: The typical hexagonal form of cystine stones and the rectangular form of different sizes. The material comprising the matrix was observed in many areas, covering and joining the crystals as if it were cement. Whenever possible, treatment of these recurrent calculi should be conservative. Some advocate the use of ESWL, although others consider these calculi to be extremely hard and, therefore, not amenable to ESWL. Chemical dissolution is advocated by some, although its critics consider it to be of little use. Concerning prophylaxis, forced fluids and alkalinization may reduce recurrence. Ultrastructural studies have provided further insight into the structure and composition of cystine calculi. The foregoing may be useful in determining the most appropriate form of treatment based upon stone size, shape, composition (pure or mixed), etc.
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