2,386 research outputs found
Space, City and Post colonialism in the Poetic Discourse of the “Independent Writers of Pernambuco”
In Altas literaturas (High Literatures), Leyla Perrone Moisés reminds us that in the scope of Catholicism the canon acquired the meaning of a "list of saints recognized by the papal authority" which "by extension came to mean the set of literary authors recognized as masters of tradition" (1988, p. 61) .That, undoubtedly, guided the literary studies in Brazil until very recently. These studies ignored non-canonical literary works. In other words, the canonical thinking was oblivious to a rich literary production which was not in accordance with a colonialist view of the academic studies developed in our universities. In this work, we intend to study the literary production of some poets in Recife (Brazil), in the 1980s in relation to the established canon. We focus on the Movement, known as “Independent Writers of Pernambuco” aiming to bring to light a literary movement forgotten by Brazilian academic community.. Our study has a postcolonial perspectives we explore the need to pay attention to literary production by writers who do not always belong to “traditional canon” (Said, 2004). The poetical works of the movement we study may play a vital role in the context of Brazil and Pernambuco. By considering the emerging social responsibilities of writers and intellectuals in an ever more interdependent world, we suggest that studying the movement and its authors who are not much explored by Brazilian scholars we may be decolonizing the knowledge on literature in Brazil. Wetake into account the movement´s relations with Brazilian Northeastern culture and its program of action, dating from 1981, the beginning of the so-called "Lost Decade." The movement had an important voice against the most conservative and traditionalist criticism at that time. We believe that by studying the movement we are offering the opportunity to rethink our Brazilian and Pernambucan literary canon
First report of AURORA, the breast international group (BIG) molecular screening initiative for metastatic breast cancer (MBC) patients (pts)
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The atypical chemokine receptor ACKR2 is protective against sepsis
Sepsis is a systemic inflammatory response as a result of uncontrolled infections. Neutrophils are the first cells to reach the primary sites of infection and chemokines play a key role in recruiting neutrophils. However, in sepsis chemokines could also contribute to neutrophil infiltration to vital organs leading to multiple organ failure. ACKR2 is an atypical chemokine receptor, which can remove and degrade inflammatory CC chemokines. The role of ACK2 in sepsis is unknown. Using a model of cecal ligation and puncture (CLP), we demonstrate here that ACKR2 deficient (−/−) mice exhibited a significant reduction in the survival rate compared to similarly treated wild type (WT) mice. However, neutrophil migration to the peritoneal cavity and bacterial load were similar between WT and ACKR2−/− mice during CLP. In contrast, ACKR2−/− mice showed increased neutrophil infiltration and elevated CC chemokine levels in the lung, kidney and heart compared to the WT mice. In addition, ACKR2−/− mice also showed more severe lesions in the lung and kidney than those in the WT mice. Consistent with these results, WT mice under non-severe sepsis (90% survival) had higher expression of ACKR2 in these organs than mice under severe sepsis (no survival). Finally, the lungs from septic patients showed increased number of ACKR2+ cells compared to those of non-septic patients. Our data indicate that ACKR2 may have a protective role during sepsis, and the absence of ACKR2 leads to exacerbated chemokine accumulation, neutrophil infiltration and damage to vital organs
Not so pseudo: the evolutionary history of protein phosphatase 1 regulatory subunit 2 and related pseudogenes
Background: Pseudogenes are traditionally considered “dead” genes, therefore lacking biological functions. This
view has however been challenged during the last decade. This is the case of the Protein phosphatase 1 regulatory
subunit 2 (PPP1R2) or inhibitor-2 gene family, for which several incomplete copies exist scattered throughout the
genome.
Results: In this study, the pseudogenization process of PPP1R2 was analyzed. Ten PPP1R2-related pseudogenes
(PPP1R2P1-P10), highly similar to PPP1R2, were retrieved from the human genome assembly present in the
databases. The phylogenetic analysis of mammalian PPP1R2 and related pseudogenes suggested that PPP1R2P7
and PPP1R2P9 retroposons appeared before the great mammalian radiation, while the remaining pseudogenes are
primate-specific and retroposed at different times during Primate evolution. Although considered inactive, four of
these pseudogenes seem to be transcribed and possibly possess biological functions. Given the role of PPP1R2 in
sperm motility, the presence of these proteins was assessed in human sperm, and two PPP1R2-related proteins
were detected, PPP1R2P3 and PPP1R2P9. Signatures of negative and positive selection were also detected in
PPP1R2P9, further suggesting a role as a functional protein.
Conclusions: The results show that contrary to initial observations PPP1R2-related pseudogenes are not simple
bystanders of the evolutionary process but may rather be at the origin of genes with novel functions.publishe
Genetic Screening of Mutations Associated with Fabry Disease in a Nationwide Cohort of Juvenile Idiopathic Arthritis Patients
Fabry's disease (FD) is a lysosomal storage disorder associated with an alpha-galactosidase A deficiency. The prevalence of FD among juvenile idiopathic arthritis (JIA) patients with established diagnosis is unknown, but as musculoskeletal pain may be an important complaint at presentation, misdiagnosed cases are anticipated. With this study, we aim to calculate the frequency of FD-associated mutations in a cohort of JIA patients. Children with JIA from a national cohort were selected. Clinical and laboratorial information was recorded in the Portuguese rheumatic diseases register (http://Reuma.pt). Molecular genetic testing to detectGLAgene mutations was performed. After the multiplex polymerase chain reactions technique for DNA amplification, direct sequencing of the complete sequence ofGLAgene was completed. From a cohort of 292 patients with JIA (188 females, 104 males), mutations were identified in 5 patients (all female). Four patients had the mutation D313Y, a rareGLAvariant, which is associated with low enzymatic levels in plasma, but normal lysosomal levels. One patient presented the missense mutation R118C, which was previously described in Mediterranean patients with FD. This is the first screening of FD mutations in a cohort of JIA patients. No "classic" pathogenic FD mutations were reported. The late-onset FD-associated mutation, R118C, was found in a frequency of 0.34% (1/292).publishersversionpublishe
Wireless transmission system of ECG and temperature for hospital areas
Este artículo presenta el diseño, desarrollo y pruebas de un dispositivo multicanal de adquisición y transmisión
de señales electrocardiográficas y de temperatura, utilizando tecnologías de transmisión inalámbrica (Bluetooth, ZigBee, Radio-
Frecuencia RF), con una interfaz de usuario en una central de monitoreo. Se analizó el desempeño del sistema de acuerdo a su
disponibilidad (97%), tiempo de conexión (6 segundos) y precisión en las mediciones (98%).This paper presents the design, development and testing of a multi-channel device for acquisition and transmission
of ECG and temperature signals, using wireless transmission technologies (Bluetooth, ZigBee, RF), with a central monitoring user
interface. We analyzed the system’s performance based on its availability (97%), connection time (6 seconds) and measurement’s
accuracy (98%
Improved syntheses of aromatase inhibitors and neuroactive steroids efficient oxidations and reductions at key positions for bioactivity
An Henbest reduction, followed by the preparation of a silyl enol ether and oxidation in situ with m-CPBA has led to the neurosteroids 3[alpha]-hydroxy- and 3[alpha],21-dihydroxy-5[alpha]-pregnanolones. Using testosterone as starting material, a new short synthesis of an aromatase inhibitor, 4-OHA, has been achieved through hydroboration/oxidation followed by a Swern type oxidation and epimerization. Another aromatase inhibitor, androst-4-ene-3,6-17-trione, has been efficiently prepared using PCC on montmorillonite K10, under ultrasonic irradiation.http://www.sciencedirect.com/science/article/B6THR-3WC46V7-8/1/5f915790e78df65f4c988ab78bf4f17
Brazilian Plasmodium falciparum isolates: investigation of candidate polymorphisms for artemisinin resistance before introduction of artemisinin-based combination therapy
<p>Abstract</p> <p>Background</p> <p>This study was performed to better understand the genetic diversity of known polymorphisms in <it>pfatpase6 </it>and <it>pfmdr1 </it>genes before the introduction of ACT in Brazil, in order to get a genotypic snapshot of <it>Plasmodium falciparum </it>parasites that may be used as baseline reference for future studies.</p> <p>Methods</p> <p>Parasites from <it>P. falciparum </it>samples collected in 2002, 2004 and 2006-2007 were genotyped using PCR and DNA sequencing at codons 86, 130, 184, 1034, 1042, 1109 and 1246 for <it>pfmdr1 </it>gene, and 243, 263, 402, 431, 623, 630, 639, 683, 716, 776, 769 and 771 for <it>pfatpase6 </it>gene.</p> <p>Results</p> <p>A <it>pfmdr1 </it>haplotype NEF/CDVY was found in 97% of the samples. In the case of <it>pfatpase6</it>, four haplotypes, wild-type (37%), 630 S (35%), 402 V (5%) and double-mutant 630 S + 402 V (23%), were detected.</p> <p>Conclusion</p> <p>Although some polymorphism in <it>pfmdr1 </it>and <it>pfatpase6 </it>were verified, no reported haplotypes in both genes that may mediate altered response to ACT was detected before the introduction of this therapy in Brazil. Thus, the haplotypes herein described can be very useful as a baseline reference of <it>P. falciparum </it>populations without ACT drug pressure.</p
Results from the portuguese register
Objective Our aims were to evaluate the correlation between Juvenile Arthritis Disease Activity Score 27-joint reduced count (JADAS27) with erythrocyte sedimentation rate (ESR) and JADAS27 with C-reactive protein (CRP) scores and to test the agreement of both scores on classifying each disease activity state. We also aimed at verifying the correlation of the 2 scores across juvenile idiopathic arthritis (JIA) categories and to check the correlation between JADAS27-ESR and clinical JADAS27 (JADAS27 without ESR). Methods A nationwide cohort of patients with JIA registered in the Portuguese Register, Reuma.pt, was studied. JADAS27-CRP was adapted by replacing ESR with CRP level as the inflammatory marker. JADAS27-CRP was calculated similarly to JADAS27-ESR as the simple linear sum of its 4 components. Pearson's correlations and K statistics were used in the analyses. Results A total of 358 children had full data to calculate JADAS27; 65.4% were female and the mean ± SD disease duration was 11.8 ± 9.1 years. The correlation coefficient between JADAS27-ESR and JADAS27-CRP was 0.967 (P < 0.0001), although the correlation coefficient between ESR and CRP level was 0.335 (P < 0.0001). The strong correlation between JADAS27-ESR and JADAS27-CRP was maintained when compared within each JIA category. The agreement between JADAS27-ESR and JADAS27-CRP across the 4 activity states was very good, showing 91.1% of the observations in agreement; K = 0.867 (95% confidence interval 0.824-0.91). The correlation between JADAS27 with ESR and JADAS27 without ESR was high (r = 0.97, P < 0.0001). Conclusion JADAS27 based on CRP level correlated closely with JADAS27-ESR across all disease activity states and JIA categories, indicating that both measures can be used in clinical practice. Moreover, the correlation of JADAS27 with and without ESR was also high, suggesting that this tool might be useful even in the absence of laboratorial measures.publishersversionpublishe
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