75 research outputs found

    Conocimiento occidental y saberes indígenas en la educación intercultural bilingüe en el Ecuador

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    Este artículo analiza la relación entre los conocimientos indígenas y los occidentales en el sistema de educación intercultural bilingüe (EIB) en el Ecuador. El texto muestra que la tensión entre ambos tipos de saberes refleja diferencias en la forma en la que entienden el papel de la educación formal las bases y los líderes del movimiento indígena. El artículo también argumenta que los aliados de los movimientos indígenas (los grupos religiosos, los académicos, las ONG y otros) y las comunidades tienen distintos objetivos educativos. Mientras que los aliados y los líderes ven la EIB como un espacio para preservar la lengua y la cultura indígenas, los padres de familia y los estudiantes aspiran a que el sistema educativo formal les de acceso a conocimientos occidentales como la lecto-escritura en castellano, el inglés y la computación. Sin embargo, las comunidades no desprecian los saberes indígenas basados en la narrativa oral y la sabiduría de los ancianos, sino que no consideran que el espacio para la reproducción de estos saberes sea la escuela. Estos conocimientos tienden a reproducirse fuera de las instituciones educativas en los ámbitos de la familia y la comunidad. Los datos de este estudio se recogieron de forma colaborativa por la autora y un grupo de investigadores indígenas. Debido a esto, el texto aporta puntos de vista internos y críticos que complementan los de otros estudios. // This article analyzes the relationships between indigenous and Western forms of knowledge in intercultural bilingual education (EIB) in Ecuador. The work shows that the tensions between both forms of knowledge reflect differences in the ways that indigenous leaders and communities understand the role of formal education. The article also argues that the allies of indigenous movements (religious groups, academics, NGOs, and others) and indigenous communities have different educational aims. Whereas allies and indigenous leaders see EIB as a tool to preserve indigenous language and culture, indigenous parents and students seek access to western forms of knowledge such as Spanish literacy, English, and computers. Communities do not underestimate indigenous knowledges based on oral narratives and elder wisdom. However, the article argues that indigenous individuals do not think that the school system is the right place for the reproduction of this wisdom. These knowledges are typically shared outside of school premises in the domains of the family and community. The author gathered the data for this article with a group of indigenous researchers through a collaborative methodology. Thus, this study contributes with internal and critical points of view that complement those of other studies

    Intimate Political Economies of the Andes

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    This essay reviews the following works:   Rhythms of the Pachakuti: Indigenous Uprising and State Power in Bolivia. By Raquel Gutiérrez Aguilar. Durham, NC: Duke University Press, 2014. Pp. ix + 284. 25.24paperback.ISBN:9780822356042. StateTheoryandAndeanPolitics:NewApproachestotheStudyofRule.EditedbyChristopherKrupaandDavidNugent.Philadelphia:UniversityofPennsylvaniaPress,2015.Pp.v+328.25.24 paperback. ISBN: 9780822356042.   State Theory and Andean Politics: New Approaches to the Study of Rule. Edited by Christopher Krupa and David Nugent. Philadelphia: University of Pennsylvania Press, 2015. Pp. v + 328. 56.56 hardcover. ISBN: 9780812246940.   Embodied Protests: Emotions and Women’s Health in Bolivia. By María Tapias. Urbana: University of Illinois Press, 2015. Pp. ix + 160. $21.67 paperback. ISBN: 9780252080746

    Antropología indigenista en el Ecuador desde la década de 1970: compromisos políticos, religiosos y tecnocráticos

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    This article is an attempt to answer some questions about the opportunities and obstacles faced when doing social science in politically and economically unstable places; the insertion of the researcher in the social and political processes that he/she is trying to analyze; and the difficulties faced by indigenous anthropologists regarding academic participation and production in Ecuadorian anthropology. One of the findings of this article is that the same actors that helped organize the indigenous movement in Ecuador, the progressive Catholic Church and the left, are also the main producers of anthropological knowledge. Thus, the article questions the common assumption that the left did not understand the importance of culture and ethnicity for contemporary politics. Finally, the complex relationship of Ecuadorian academics with the indigenous movement and the political effects of these tensions are analyzed.Este artículo responde interrogantes sobre las oportunidades y problemas que se presentan al hacer ciencia social en lugares política y económicamente inestables, sobre la inserción del investigador en los procesos sociales y políticos que analiza, y sobre las dificultades de la producción y la participación académica de los antropólogos indígenas en la antropología ecuatoriana. Uno de sus hallazgos es que los actores que contribuyeron a la organización del movimiento indígena en el Ecuador, la iglesia progresista y la izquierda, son también los principales productores de pensamiento antropológico; por tanto, cuestiona la creencia generalizada de que la izquierda no comprendió la importancia de la cultura y la etnicidad. Finalmente, analiza la relación ambigua de los académicos con el movimiento indígena y sus posibles efectos políticos

    The Ve-mediated resistance response of the tomato to Verticillium dahliae involves H2O2, peroxidase and lignins and drives PAL gene expression

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    <p>Abstract</p> <p>Background</p> <p><it>Verticillium dahliae </it>is a fungal pathogen that infects a wide range of hosts. The only known genes for resistance to <it>Verticillium </it>in the Solanaceae are found in the tomato (<it>Solanum lycopersicum</it>) <it>Ve </it>locus, formed by two linked genes, <it>Ve1 </it>and <it>Ve2</it>. To characterize the resistance response mediated by the tomato <it>Ve </it>gene, we inoculated two nearly isogenic tomato lines, LA3030 (<it>ve</it>/<it>ve</it>) and LA3038 (<it>Ve</it>/<it>Ve</it>), with <it>V. dahliae</it>.</p> <p>Results</p> <p>We found induction of H<sub>2</sub>O<sub>2 </sub>production in roots of inoculated plants, followed by an increase in peroxidase activity only in roots of inoculated resistant plants. Phenylalanine-ammonia lyase (PAL) activity was also increased in resistant roots 2 hours after inoculation, while induction of PAL activity in susceptible roots was not seen until 48 hours after inoculation. Phenylpropanoid metabolism was also affected, with increases in ferulic acid, <it>p</it>-coumaric acid, vanillin and <it>p</it>-hydroxybenzaldehyde contents in resistant roots after inoculation. Six tomato <it>PAL </it>cDNA sequences (<it>PAL1 </it>- <it>PAL6</it>) were found in the SolGenes tomato EST database. RT-PCR analysis showed that these genes were expressed in all organs of the plant, albeit at different levels. Real-time RT-PCR indicated distinct patterns of expression of the different <it>PAL </it>genes in <it>V. dahliae</it>-inoculated roots. Phylogenetic analysis of 48 partial <it>PAL </it>cDNAs corresponding to 19 plant species grouped angiosperm <it>PAL </it>sequences into four clusters, suggesting functional differences among the six tomato genes, with <it>PAL2 </it>and <it>PAL6 </it>presumably involved in lignification, and the remaining <it>PAL </it>genes implicated in other biological processes.</p> <p>An increase in the synthesis of lignins was found 16 and 28 days after inoculation in both lines; this increase was greater and faster to develop in the resistant line. In both resistant and susceptible inoculated plants, an increase in the ratio of guaiacyl/syringyl units was detected 16 days after inoculation, resulting from the lowered amount of syringyl units in the lignins of inoculated plants.</p> <p>Conclusions</p> <p>The interaction between the tomato and <it>V. dahliae </it>triggered a number of short- and long-term defensive mechanisms. Differences were found between compatible and incompatible interactions, including onset of H<sub>2</sub>O<sub>2 </sub>production and activities of peroxidase and PAL, and phenylpropanoid metabolism and synthesis of lignins.</p

    Inflammation-related molecules in tears of patients with chronic ocular pain and dry eye disease

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    Producción CientíficaThe purpose of this study was to analyze inflammation- and pain-related molecules in tears of patients suffering from chronic ocular pain associated with dry eye (DE) and/or a previous corneal refractive surgery (RS). Based on history, symptomatology, and clinical signs, the subjects (n = 180, 51.0 ± 14.7 years, 118 females, 62 males) in this cross-sectional study were assigned to one of five groups: DE and chronic ocular pain after RS (P/DE-RS, n = 52); asymptomatic subjects, i.e., without DE and chronic ocular pain, after RS (A-RS, n = 30); DE and chronic ocular pain without previous RS (P/DE-nonRS, n = 31); DE, no pain, and no previous RS (DE-nonRS, n = 35); and asymptomatic subjects with no previous RS (controls, n = 32). The tear concentrations of 20 cytokines and substance P (SP) were analyzed by immunobead-based assay and enzyme-linked immunosorbent assay, respectively. We found that tear levels of interleukin (IL)-10 and SP were increased in the RS groups. There were significant differences in IL-8/CXCL8 among the five groups. Nerve growth factor (NGF) tear levels were significantly higher in P/DE-RS than in DE-nonRS and controls. IL-9 had the highest percentage of detection in the P/DE-RS and P/DE-nonRS groups, while macrophage inflammatory protein (MIP)-1α, IL-2, and interferon (IFN)-γ were higher in the P/DE-RS, A-RS, and P/DE-nonRS groups. IL-17A was detected only in the A-RS group. Moderate correlations were observed in the A-RS, P/DE-nonRS, DE-nonRS and controls groups. A positive correlation was obtained between growth related oncogene concentration and tear break-up time (rho = 0.550; p = 0.012), while negative correlation was found between monocyte chemoattractant protein-3/CCL7 and conjunctival staining (rho = −0.560; p = 0.001), both in the A-RS group. IL-10 correlated positively with ocular pain intensity (rho = 0.513; p = 0.003) in the P/DE-nonRS group. Regulated on Activation Normal T Cell Expressed and Secreted/CCL5 correlated negatively with conjunctival staining (rho = −0.545; p = 0.001) in the DE-nonRS group. SP correlated negatively with corneal staining (rho = −0.559; p = 0.001) in the controls. In conclusion, chronic ocular pain was associated with higher IL-9 tear levels. IL-10, SP, MIP-1α/CCL3, IL-2, and IFN-γ were associated with previous RS. Higher levels of IL-8/CXCL8, MIP-1α/CCL3, IL-2, and IFN-γ were associated with DE-related inflammation, while NGF levels were related to chronic ocular pain and DE in RS patients. These findings suggest that improved knowledge of tear cytokines and neuromodulators will lead to a more nuanced understanding of how these molecules can serve as biomarkers of chronic ocular pain, leading to better therapeutic and disease management decisions.Ministerio de Ciencia, Innovación y Universidades (grants SAF-2016-77080-P, FPU17/02715 and FPU15/01443

    Effects of intubation timing in patients with COVID-19 throughout the four waves of the pandemic: a matched analysis

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    Background: The primary aim of our study was to investigate the association between intubation timing and hospital mortality in critically ill patients with coronavirus disease 2019 (COVID-19)-associated respiratory failure. We also analysed both the impact of such timing throughout the first four pandemic waves and the influence of prior noninvasive respiratory support on outcomes. Methods: This is a secondary analysis of a multicentre, observational and prospective cohort study that included all consecutive patients undergoing invasive mechanical ventilation due to COVID-19 from across 58 Spanish intensive care units (ICUs) participating in the CIBERESUCICOVID project. The study period was between 29 February 2020 and 31 August 2021. Early intubation was defined as that occurring within the first 24 h of ICU admission. Propensity score matching was used to achieve a balance across baseline variables between the early intubation cohort and those patients who were intubated after the first 24 h of ICU admission. Differences in outcomes between early and delayed intubation were also assessed. We performed sensitivity analyses to consider a different time-point (48 h from ICU admission) for early and delayed intubation. Results: Of the 2725 patients who received invasive mechanical ventilation, a total of 614 matched patients were included in the analysis (307 for each group). In the unmatched population, there were no differences in mortality between the early and delayed groups. After propensity score matching, patients with delayed intubation presented higher hospital mortality (27.3% versus 37.1%; p=0.01), ICU mortality (25.7% versus 36.1%; p=0.007) and 90-day mortality (30.9% versus 40.2%; p=0.02) compared with the early intubation group. Very similar findings were observed when we used a 48-h time-point for early or delayed intubation. The use of early intubation decreased after the first wave of the pandemic (72%, 49%, 46% and 45% in the first, second, third and fourth waves, respectively; first versus second, third and fourth waves p<0.001). In both the main and sensitivity analyses, hospital mortality was lower in patients receiving high-flow nasal cannula (HFNC) (n=294) who were intubated earlier. The subgroup of patients undergoing noninvasive ventilation (n=214) before intubation showed higher mortality when delayed intubation was set as that occurring after 48 h from ICU admission, but not when after 24 h. Conclusions: In patients with COVID-19 requiring invasive mechanical ventilation, delayed intubation was associated with a higher risk of hospital mortality. The use of early intubation significantly decreased throughout the course of the pandemic. Benefits of such an approach occurred more notably in patients who had received HFNC

    Family History and Breast Cancer Hormone Receptor Status in a Spanish Cohort

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    Breast cancer is a heterogenous disease that impacts racial/ethnic groups differently. Differences in genetic composition, lifestyles, reproductive factors, or environmental exposures may contribute to the differential presentation of breast cancer among Hispanic women.A population-based study was conducted in the city of Santiago de Compostela, Spain. A total of 645 women diagnosed with operable invasive breast cancer between 1992 and 2005 participated in the study. Data on demographics, breast cancer risk factors, and clinico-pathological characteristics of the tumors were collected. Hormone receptor negative tumors were compared with hormone receptor postive tumors on their clinico-pathological characteristics as well as risk factor profiles.Among the 645 breast cancer patients, 78% were estrogen receptor-positive (ER+) or progesterone receptor-positive (PR+), and 22% were ER−&PR−. Women with a family history of breast cancer were more likely to have ER−&PR− tumors than women without a family history (Odds ratio, 1.43; 95% confidence interval, 0.91–2.26). This association was limited to cancers diagnosed before age 50 (Odds ratio, 2.79; 95% confidence interval, 1.34–5.81).An increased proportion of ER−&PR− breast cancer was observed among younger Spanish women with a family history of the disease

    Effects of intubation timing in patients with COVID-19 throughout the four waves of the pandemic : a matched analysis

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    The primary aim of our study was to investigate the association between intubation timing and hospital mortality in critically ill patients with COVID-19-associated respiratory failure. We also analysed both the impact of such timing throughout the first four pandemic waves and the influence of prior non-invasive respiratory support on outcomes. This is a secondary analysis of a multicentre, observational and prospective cohort study that included all consecutive patients undergoing invasive mechanical ventilation due to COVID-19 from across 58 Spanish intensive care units (ICU) participating in the CIBERESUCICOVID project. The study period was between 29 February 2020 and 31 August 2021. Early intubation was defined as that occurring within the first 24 h of intensive care unit (ICU) admission. Propensity score (PS) matching was used to achieve balance across baseline variables between the early intubation cohort and those patients who were intubated after the first 24 h of ICU admission. Differences in outcomes between early and delayed intubation were also assessed. We performed sensitivity analyses to consider a different timepoint (48 h from ICU admission) for early and delayed intubation. Of the 2725 patients who received invasive mechanical ventilation, a total of 614 matched patients were included in the analysis (307 for each group). In the unmatched population, there were no differences in mortality between the early and delayed groups. After PS matching, patients with delayed intubation presented higher hospital mortality (27.3% versus 37.1%, p =0.01), ICU mortality (25.7% versus 36.1%, p=0.007) and 90-day mortality (30.9% versus 40.2%, p=0.02) when compared to the early intubation group. Very similar findings were observed when we used a 48-hour timepoint for early or delayed intubation. The use of early intubation decreased after the first wave of the pandemic (72%, 49%, 46% and 45% in the first, second, third and fourth wave, respectively; first versus second, third and fourth waves p<0.001). In both the main and sensitivity analyses, hospital mortality was lower in patients receiving high-flow nasal cannula (n=294) who were intubated earlier. The subgroup of patients undergoing NIV (n=214) before intubation showed higher mortality when delayed intubation was set as that occurring after 48 h from ICU admission, but not when after 24 h. In patients with COVID-19 requiring invasive mechanical ventilation, delayed intubation was associated with a higher risk of hospital mortality. The use of early intubation significantly decreased throughout the course of the pandemic. Benefits of such an approach occurred more notably in patients who had received high-flow nasal cannul

    Non-motor symptom burden in patients with Parkinson's disease with impulse control disorders and compulsive behaviours : results from the COPPADIS cohort

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    The study was aimed at analysing the frequency of impulse control disorders (ICDs) and compulsive behaviours (CBs) in patients with Parkinson's disease (PD) and in control subjects (CS) as well as the relationship between ICDs/CBs and motor, nonmotor features and dopaminergic treatment in PD patients. Data came from COPPADIS-2015, an observational, descriptive, nationwide (Spain) study. We used the validated Questionnaire for Impulsive-Compulsive Disorders in Parkinson's Disease-Rating Scale (QUIP-RS) for ICD/CB screening. The association between demographic data and ICDs/CBs was analyzed in both groups. In PD, this relationship was evaluated using clinical features and treatment-related data. As result, 613 PD patients (mean age 62.47 ± 9.09 years, 59.87% men) and 179 CS (mean age 60.84 ± 8.33 years, 47.48% men) were included. ICDs and CBs were more frequent in PD (ICDs 12.7% vs. 1.6%, p < 0.001; CBs 7.18% vs. 1.67%, p = 0.01). PD patients had more frequent previous ICDs history, premorbid impulsive personality and antidepressant treatment (p < 0.05) compared with CS. In PD, patients with ICDs/CBs presented younger age at disease onset, more frequent history of previous ICDs and premorbid personality (p < 0.05), as well as higher comorbidity with nonmotor symptoms, including depression and poor quality of life. Treatment with dopamine agonists increased the risk of ICDs/CBs, being dose dependent (p < 0.05). As conclusions, ICDs and CBs were more frequent in patients with PD than in CS. More nonmotor symptoms were present in patients with PD who had ICDs/CBs compared with those without. Dopamine agonists have a prominent effect on ICDs/CBs, which could be influenced by dose

    Prognostic implications of comorbidity patterns in critically ill COVID-19 patients: A multicenter, observational study

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    Background The clinical heterogeneity of COVID-19 suggests the existence of different phenotypes with prognostic implications. We aimed to analyze comorbidity patterns in critically ill COVID-19 patients and assess their impact on in-hospital outcomes, response to treatment and sequelae. Methods Multicenter prospective/retrospective observational study in intensive care units of 55 Spanish hospitals. 5866 PCR-confirmed COVID-19 patients had comorbidities recorded at hospital admission; clinical and biological parameters, in-hospital procedures and complications throughout the stay; and, clinical complications, persistent symptoms and sequelae at 3 and 6 months. Findings Latent class analysis identified 3 phenotypes using training and test subcohorts: low-morbidity (n=3385; 58%), younger and with few comorbidities; high-morbidity (n=2074; 35%), with high comorbid burden; and renal-morbidity (n=407; 7%), with chronic kidney disease (CKD), high comorbidity burden and the worst oxygenation profile. Renal-morbidity and high-morbidity had more in-hospital complications and higher mortality risk than low-morbidity (adjusted HR (95% CI): 1.57 (1.34-1.84) and 1.16 (1.05-1.28), respectively). Corticosteroids, but not tocilizumab, were associated with lower mortality risk (HR (95% CI) 0.76 (0.63-0.93)), especially in renal-morbidity and high-morbidity. Renal-morbidity and high-morbidity showed the worst lung function throughout the follow-up, with renal-morbidity having the highest risk of infectious complications (6%), emergency visits (29%) or hospital readmissions (14%) at 6 months (p<0.01). Interpretation Comorbidity-based phenotypes were identified and associated with different expression of in-hospital complications, mortality, treatment response, and sequelae, with CKD playing a major role. This could help clinicians in day-to-day decision making including the management of post-discharge COVID-19 sequelae. Copyright (C) 2022 The Author(s). Published by Elsevier Ltd
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