82 research outputs found
Si la historia la escriben los que ganan, eso quiere decir que hay otra historia...
EcologĂa evolutivaFil: Cosacov, A. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva - BiologĂa Floral; Argentina.Fil: Cosacov, A. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales; Argentina.Fil: Baranzelli, M. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva - BiologĂa Floral; Argentina.Fil: Baranzelli, M. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales; Argentina.Fil: Ferreiro, G. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva - BiologĂa Floral; Argentina.Fil: Ferreiro, G. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales; Argentina.Fil: Paiaro, V. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva - BiologĂa Floral; Argentina.Fil: Paiaro, V. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales; Argentina.Fil: SĂ©rsic, A. N. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva - BiologĂa Floral; Argentina.Fil: SĂ©rsic, A. N. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales; Argentina.El estudio de la historia evolutiva de las plantas puede ser abordado desde mĂșltiples perspectivas. La
variaciĂłn tanto genĂ©tica como fenotĂpica en el rango geogrĂĄfico de las especies es resultado de procesos
evolutivos combinados y diversos producidos en el tiempo y el espacio.http://2015rabe.wix.com/rabe-2015Fil: Cosacov, A. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva - BiologĂa Floral; Argentina.Fil: Cosacov, A. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales; Argentina.Fil: Baranzelli, M. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva - BiologĂa Floral; Argentina.Fil: Baranzelli, M. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales; Argentina.Fil: Ferreiro, G. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva - BiologĂa Floral; Argentina.Fil: Ferreiro, G. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales; Argentina.Fil: Paiaro, V. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva - BiologĂa Floral; Argentina.Fil: Paiaro, V. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales; Argentina.Fil: SĂ©rsic, A. N. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva - BiologĂa Floral; Argentina.Fil: SĂ©rsic, A. N. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales; Argentina.BiologĂa (teĂłrica, matemĂĄtica, tĂ©rmica, criobiologĂa, ritmos biolĂłgicos), BiologĂa Evolutiv
Salvage high-dose chemotherapy for children with extragonadal germ-cell tumours
We reviewed the European Group for Blood and Marrow Transplantation (EBMT) experience with salvage high-dose chemotherapy (HDC) in paediatric patients with extragonadal germ-cell tumour (GCT). A total of 23 children with extragonadal GCT, median age 12 years (range 1â20), were treated with salvage HDC with haematopoietic progenitor cell support. The GCT primary location was intracranial site in nine cases, sacrococcyx in eight, retroperitoneum in four, and mediastinum in two. In all, 22 patients had a nongerminomatous GCT and one germinoma. Nine patients received HDC in first- and 14 in second- or third-relapse situation. No toxic deaths occurred. Overall, 16 of 23 patients (70%) achieved a complete remission. With a median follow-up of 66 months (range 31â173 months), 10 (43%) are continuously disease-free. Of six patients who had a disease recurrence after HDC, one achieved a disease-free status with surgical resection followed by chemotherapy and radiotherapy. In total, 11 patients (48%) are currently disease-free. Eight of 14 patients (57%) with extracranial primary and three of nine patients (33%) with intracranial primary GCT are currently disease-free. HDC induced impressive long-term remissions as salvage treatment in children with extragonadal extracranial GCTs. Salvage HDC should be investigated in prospective trials in these patients
Linking South American dry regions by the Gran Chaco:Insights from the evolutionary history and ecologicaldiversiïŹcation of Gomphrena s.str. (Gomphrenoideae, Amaranthaceae)
Journal of Systematics and Evolution - Best quartile Q1Fil: Bena, MarĂa J. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva. BiologĂa Floral; Argentina.Fil: Bena, MarĂa J. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Instituto de BotĂĄnica Darwinion; Argentina.Fil: Baranzelli, Matias C. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva. BiologĂa Floral; Argentina.Fil: Baranzelli, Matias C. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; Argentina.Fil: Costas, Santiago M. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva. BiologĂa Floral; Argentina.Fil: Costas, Santiago M. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; Argentina.Fil: Cosacov, Andrea. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva. BiologĂa Floral; Argentina.Fil: Cosacov, Andrea. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; Argentina.Fil: Acosta, MarĂa C. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva. BiologĂa Floral; Argentina.Fil: Acosta, MarĂa C. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; Argentina.Fil: MoreiraâMuñoz, AndrĂ©s. PontiïŹcia Universidad CatĂłlica de ValparaĂso. Instituto de GeografĂa; Chile.Fil: SĂ©rsic, Alicia N. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva. BiologĂa Floral; Argentina.Fil: SĂ©rsic, Alicia N. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; Argentina.Abstract: Geoclimatic events driving South American aridization have generated biota differentiation due to barriers and new environment formation. New environments allow species climatic niche evolution, or the geographical expansion of an existing one. Understanding the role these processes play may clarify the evolution of South American biota. Gomphrena L. ranges across almost all the continent's arid environments. We tested whether South American drylands are biogeographically connected through the Gran Chaco but, due to different aridity levels, lineage diversification could have also been associated with the evolution of climatic niches and morphological or physiological traits. With available data, we generated a dated phylogeny, estimated ancestral ranges, performed diversification analyses, reconstructed ancestral states of two characters, and examined if niches have changed between lineages. Results showed that Gomphrena diversified throughout the easternmost South American drylands ~15.4âMa, and subsequently three independent clades colonized the western arid regions during the last Andean pulse, and after the marine transgressions (~4.8â0.4âMa) via the Gran Chaco. The colonization implied an increase in the diversification rate of annuals over perennials and the progressive eastâwest differentiation of the occupied climatic niche. This diversification was influenced by C4 photosynthesis, which could have acted as a niche opener to conquer new environments after the Paranaean Sea withdrew. Spatiotemporal patterns found in Gomphrena suggest that geographical expansion and evolution of climatic niches played a common but decoupled role in promoting diversification. These results show that the Gran Chaco may have acted as a historical connection linking South American drylands.info:eu-repo/semantics/publishedVersionFil: Bena, MarĂa J. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva. BiologĂa Floral; Argentina.Fil: Bena, MarĂa J. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Instituto de BotĂĄnica Darwinion; Argentina.Fil: Baranzelli, Matias C. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva. BiologĂa Floral; Argentina.Fil: Baranzelli, Matias C. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; Argentina.Fil: Costas, Santiago M. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva. BiologĂa Floral; Argentina.Fil: Costas, Santiago M. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; Argentina.Fil: Cosacov, Andrea. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva. BiologĂa Floral; Argentina.Fil: Cosacov, Andrea. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; Argentina.Fil: Acosta, MarĂa C. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva. BiologĂa Floral; Argentina.Fil: Acosta, MarĂa C. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; Argentina.Fil: MoreiraâMuñoz, AndrĂ©s. PontiïŹcia Universidad CatĂłlica de ValparaĂso. Instituto de GeografĂa; Chile.Fil: SĂ©rsic, Alicia N. Universidad Nacional de CĂłrdoba. Facultad de Ciencias Exactas, FĂsicas y Naturales. Instituto Multidisciplinario de BiologĂa Vegetal. Laboratorio de EcologĂa Evolutiva. BiologĂa Floral; Argentina.Fil: SĂ©rsic, Alicia N. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas; Argentina
Mise Ă jour des recommandations du GEFPICS pour lâĂ©valuation du statut HER2 dans les cancers du sein en France
En Europe, les patientes atteintes dâun cancer du sein invasif susceptibles de recevoir un traitement ciblĂ© anti-HER2 sont actuellement sĂ©lectionnĂ©es sur la base dâun test immunohistochimique (IHC). Les techniques dâhybridation in situ (HIS) doivent ĂȘtre utilisĂ©es pour lâĂ©valuation des cas IHC ambigus (2+) et pour lâĂ©talonnage de la technique IHC. Les patientes Ă©ligibles au traitement ciblant HER2 prĂ©sentent un statut HER2 positif dĂ©fini par un test IHC 3+ ou un test 2+ amplifiĂ©. Une dĂ©tection correcte du statut HER2 est indispensable Ă une utilisation optimale des thĂ©rapeutiques ciblĂ©es puisque leur efficacitĂ© est limitĂ©e aux patientes surexprimant HER2. Il est capital que lâĂ©valuation du statut HER2 soit optimisĂ©e et fiable. Ces recommandations du groupe dâĂ©tude des facteurs pronostiques IHC dans le cancer du sein (GEFPICS) dĂ©taillent et commentent les diffĂ©rentes Ă©tapes des techniques IHC et HIS, les contrĂŽles utilisables et les rĂšgles gĂ©nĂ©rales de lâapprentissage de la lecture. Une fois acquis, ce savoir-faire doit ĂȘtre pĂ©rennisĂ© par lâobservation de rĂšgles de bonnes pratiques techniques (utilisation rigoureuse de tĂ©moins internes et externes et participation rĂ©guliĂšre Ă des programmes dâAssurance qualitĂ© [AQ])., Summary In Europe, patients who may benefit from an HER2 targeted drug are currently selected by immunohistochemistry (IHC). In situ hybridization (ISH) techniques should be used for complementary assessment of ambiguous 2+ IHC cases and for the calibration of the IHC technique. Eligibility to an HER2 target treatment is defined by an HER2 positive status being IHC test 3+ or 2+ amplified. Reliable detection of HER2 status is essential to the appropriate usage of HER2 targeted drugs because its specificity is limited to tumors overexpressing HER2. It is essential that the IHC evaluation of the HER2 status of a mammary carcinoma is optimized and reliable. This GEFPICSâ guidelines look over the different steps of the IHC technique, the controls and, the rules for interpretation. Once acquired, this knowledge must be perpetuated by the observation of rules of good technical practice (internal and external controls, quality assurance programs)
Natural deep eutectic solvent (NADES): A strategy to improve the bioavailability of blueberry phenolic compounds in a ready-to-use extract.
This study investigated whether a ready-to-use extract obtained using a natural deep eutectic solvent (NADES) affects the pharmacokinetic profile of blueberry phenolic compounds compared to organic solvent (SORG)-extracted compounds. SORG extract was administered as an aqueous solution after solvent removal. Wistar rats received a single dose of crude extract of blueberry obtained using NADES (CE-NADES) or SORG (CE-SORG), followed by LC-DAD-MS/MS analysis of blood and cecal feces. Non-compartmental pharmacokinetic analysis revealed that CE-NADES increased the bioavailability of anthocyanins by 140% compared to CE-SORG. CE-NADES increased the stability of phenolic compounds during in vitro digestion by delaying gastric chyme neutralization. These results suggest that besides being an eco-friendly solvent for the extraction of phytochemicals, choline chloride:glycerol:citric acid-based NADES can be used as a ready-to-use vehicle for increasing oral absorption of bioactive compounds such as anthocyanins
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