Formyl peptide receptors are involved in CTX-induced impairment of lymphocyte functions.

Crotoxin (CTX) is a neurotoxin that is isolated from the venom of Crotalus durissus terrificus, which displays immunomodulatory, anti-inflammatory, and anti-tumoral effects. Previous research has demonstrated that CTX promotes the adherence of leukocytes to the endothelial cells in blood microcirculation and the high endothelial venules of lymph nodes, which reduces the number of blood cells and lymphocytes. Studies have also shown that these effects are mediated by lipoxygenase-derived mediators.

Construction of assistive technology as online course for the blind about hypertension.

Objective: to develop affordable education course for the blind on the prevention of hypertension.

Method: we used the Model of Development of Digital Educational Materials composed by the stages of analysis and planning; modeling; implementation; evaluation and maintenance; distribution.

Results: we obtained fifteen pages divided into six learning units.

Construction and validation of an Educational Content Validation Instrument in Health.

Objective: to construct and validate the Educational Content Validation Instrument in Health.

Method: methodological study that includes the establishment of the conceptual structure; definition of objectives and population; construction of items and response scale; selection and arrangement of items; instrument structuring; opinion of experts; pre-test and content validation.

Results: an instrument with 15 items was constructed and, after expert evaluation, eighteen items were obtained, divided into three domains: objectives (four), structure/presentation (nine), and relevance (two).

Physical accessibility in primary healthcare: a step towards the embracement.

Objective: To assess the physical accessibility from the front desk of primary healthcare units.

Method: Descriptive and quantitative research to map the accessibility of the physical space in 157 health units, between August 2014 and May 2015, in the region of Baturité, Ceará, Brazil. The data were collected using a checklist instrument type, and absolute and relative frequencies, binomial and verisimilitude tests for statistical analysis, with statistical significance of p <0.

Nanostructured SBA-15 silica as an adjuvant in immunizations with hepatitis B vaccine.

Objective: To evaluate the applicability of SBA-15 silica as an adjuvant in immunizations with purified particles of the viral protein HBsAg, the main component of hepatitis B vaccine, Butang®, produced by Instituto Butantan.

Methods: BALB/c mice orally or subcutaneously received 0.5 μg of HBsAg adsorbed/encapsulated to SBA-15 or adsorbed to Al(OH)3.

Immunological parameters related to the adjuvant effect of the ordered mesoporous silica SBA-15.

In 2006, the first report of a nanostructured material as adjuvant was described establishing the effectiveness of the ordered mesoporous SBA-15 silica as an immune adjuvant. The present study evaluated the SBA-15 capacity to modulate the immune responsiveness of High and Low responder mice immunized with BSA encapsulated/adsorbed in SBA-15 by the intramuscular or oral route and the adjuvant effect was compared with the responsiveness induced by BSA in aluminum hydroxide salts or emulsified in Incomplete Freund adjuvant. These results demonstrate the ability of the non-toxic SBA-15 nanoparticles to increase the immunogenicity and repair the responsiveness of the constitutively low responder individuals inducing both the IgG2a and the IgG1 isotypes, independently of the immune cell committed and conditioning the low phenotype.

Administration of M. leprae Hsp65 interferes with the murine lupus progression.

The heat shock protein [Hsp] family guides several steps during protein synthesis, are abundant in prokaryotic and eukaryotic cells, and are highly conserved during evolution. The Hsp60 family is involved in assembly and transport of proteins, and is expressed at very high levels during autoimmunity or autoinflammatory phenomena. Here, the pathophysiological role of the wild type [WT] and the point mutated K(409)A recombinant Hsp65 of M.