Gustavo F S Quirino

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Neospora caninum is an apicomplexan parasite responsible for major economic losses due to abortions in cattle. Innate immune responses are crucial for host resistance against the infection, however the molecules involved in parasite recognition are still poorly understood. Nod2 is a cytosolic receptor that recognizes several pathogens and its role during N.(More)
Embedded devices are present in many of our daily activities. In some of these activities is necessary to protect the data from possible attacks. Due to resource constraints, it is necessary to study security techniques that consume the least possible resources of embedded platforms. This paper presents the performance evaluation of asymmetric cryptographic(More)
In a previous study, our group verified that 100% of mice survived to a lethal dose of Candida albicans following pretreatment with concanavalin-A (Con-A) for 3 days. This work proposed to investigate whether treatment could mediate an adaptative immune response involving T(H) 17 cells. A significant increase in IL-17 levels at 6 h postinfection was(More)
A Wireless Sensor Network (WSN) is composed of autonomous devices called sensor nodes that generally have low computational power, limited data transmission and power constraints. AWSN consists of sensor nodes that capturing information from an environment, processing data and transmitting them via radio signals. WSNs are increasingly present in our days(More)
The activities of dectin-1 and mannose receptors on phagocytosis of Candida albicans and the production of TNF-α by macrophages from mice pretreated for 3 days with extract of Artocarpus intergrifolia seeds (jack extract), Artin M or jacalin were studied. Macrophages from these mice were coincubated with C. albicans CR15 (yeast), in the presence of mannose(More)
The relationship established between Leishmania infantum and the vertebrate host can lead to a self-healing infection or to the manifestation of visceral leishmaniasis, a chronic systemic infection associated with high rates of mortality. We hypothesized that regulatory cytokines, such as interleukin-27 (IL-27), play a role in susceptibility to L. infantum(More)
Leishmaniasis is caused by protozoan parasites of the genus Leishmania In mammalians, these parasites survive and replicate in macrophages and parasite elimination by macrophages is critical for host resistance. Endosomal Toll-like receptors (TLRs) have been shown to be crucial for resistance to Leishmania major in vivo For example, mice in the resistant(More)
Interferon γ (IFN-γ) and interleukin 17A (IL-17A)-producing cells are described to be related to the protection against Leishmania infantum infection. How the immune system coordinates the balance between T-helper type 1 (Th1) and 17 (Th17) responses during visceral leishmaniasis (VL) is still unknown. Here, we combined transcriptional profiling, using RNA(More)
This paper presents the performance evaluation of asymmetric cryptographic algorithms oriented to embedded platforms used in Wireless Sensor Networks (WSN). The RSA algorithms, ECC and MQQ were evaluated on three different platforms: ARM, MSP430 and AVR Atmega128 platforms. We have used the processing time as evaluation criteria. We used the SimpleScalar(More)
Corresponding Author: Edward David Moreno DCOMP/UFS, Federal University of Sergipe, Aracaju/ SE, Brazil Email: Abstract: This paper describes the impact of using asymmetric encryption algorithms, with emphasis on RSA, ECC and Multivariate Quadratic Quasigroup (MQQ) algorithms, in a scenario of Vehicular Ad hoc Network (VANET). In the(More)