Abstract Objective: To analyze the morphofunctional regeneration process of facial nerve injury in the presence of insulin-like growth factor-1 and mesenchymal stem cells. Methods: Fourteen Wistar rats suffered unilateral facial nerve crushing and were randomly divided into two groups. All received insulin-like growth factor-1 inoculation, but only half of the animals received an additional inoculation of mesenchymal stem cells. The animals were followed for 90 days and facial nerve regeneration was analyzed via spontaneous facial motor function tests and immunohistochemistry in the nerve motor nucleus. Results: The group that received the growth factor and stem cells showed a statistically superior mean in vibrissae movements (p<0.01), touch reflex (p = 0.05) and eye closure (p<0.01), in addition to better immunohistochemistry reactivity. There was a statistically significant difference in the mean number of cells in the facial nerve nucleus between the experimental groups (p = 0.025), with the group that received the growth factor and stem cells showing the highest mean. Conclusion: The association between growth factor and stem cells potentiates the morphofunctional regeneration of the facial nerve, occurring faster and more effectively. Level of Evidence: 4, degree of recommendation C.

Abstract The genetic background of the Brazilian population is mainly characterized by three parental populations: European, African, and Native American. The aim of this study was to overview the genetic ancestry estimates for different Brazilian geographic regions and analyze factors involved in these estimates. In this systematic scoping review were included 51 studies, comprehending 81 populations of 19 states from five regions of Brazil. To reduce the potential of bias from studies with different sampling methods, we calculated the mean genetic ancestry weighted by the number of individuals. The weighted mean proportions of European, African, and Native American ancestries were 68.1%, 19.6%, and 11.6%, respectively. At the regional level, the highest European contribution occurred in the South, while the highest African and Native American contributions occurred in the Northeastern and Northern regions, respectively. Among states in the Northeast region, Bahia and Ceará showed significant differences, suggesting distinct demographic histories. This review contributes for a broader understanding of the Brazilian ancestry and indicates that the ancestry estimates are influenced by the type of molecular marker and the sampling method.

The objective of this study was to characterize the population genetic structure of the Gir breed in the Northeast of Brazil. The data used in this study were taken from pedigree information of 8,897 Gir animals between 1957 and 2007, obtained from the Brazilian Zebu Breeders Association (ABCZ). The program ENDOG was used to estimate the parameters based on the probability gene origin. From the amount of the studied animals, 67.22%, 18.41% and 3.15% had complete pedigree only on the first, second and third parentage, respectively. The number of ancestors that contributed for the reference population was 2,755, of which only 171 explain the 50% genetic variability of the population. The actual number of founder herds was 168 and the effective number of founder herds was 22.3. The number of sire supplier herds was 22.16, 8.66 and 5.36 for fathers, grandfathers and great-grandfathers, respectively. The average coefficient of relatedness was estimated at 0.22%; the highest individual coefficient was 1.49%. The little variability of the current population is a result of the small number of effective founders and ancestors indicating the population evolved from a narrow genetic base.

This is a qualitative study aimed at: identifying significant factors in nurse education; presenting a nurse profile as perceived by an undergraduate student; getting to know the perspectives nursing students have for their future professional lives. The interviewees were twelve students in nursing undergraduate programs from three universities located in the state of Pernambuco, Brazil. Recorded interviews and non-systematic observation were carried out between March and April, 2003. The following categories were identified: choice of the nurse profession; involvement in professional education; reflections on academic education and perspectives for future professional lives.

Estudio cualitativo, cuyos objetivos fueron: identificar los factores significativos en la formación del enfermero; descubrir el perfil del enfermero, tal como lo ve el estudiante; conocer las perspectivas de los estudiantes respecto a su mañana/porvenir profesional. Tuvo como sujetos a 12 estudiantes que concluían el Curso de Enfermería de tres Universidades de Pernambuco,en Brasil.Se realizaron entrevistas grabadas y observación asistemáticas los meses de marzo y abril de 2003. Como resultado se construyeron las siguientes categorías: elección de la profesión de enfermería; compromiso con la formación profesional; reflexiones respecto a la formación académica y perspectivas respecto a su futuro profesional.

Estudo qualitativo que teve como objetivos: Identificar os fatores significativos na formação do enfermeiro; descortinar o perfil do enfermeiro na percepção do graduando; conhecer as perspectivas dos enfermeirandos quanto ao seu amanhã profissional. Teve como sujeitos 12 alunos concluintes do Curso de Graduação em Enfermagem de três Universidades de Pernambuco. Foram realizadas entrevistas gravadas e observação assistemática, nos meses de março e abril de 2003. Como resultados foram construídas as seguintes categorias: Escolha pela profissão de enfermagem; envolvimento com a formação profissional; reflexões quanto à formação acadêmica e perspectivas em relação ao futuro profissional.

Estudo qualitativo que teve como objetivos: Identificar os fatores significativos na formação do enfermeiro; descortinar o perfil do enfermeiro na percepção do graduando; conhecer as perspectivas dos enfermeirandos quanto ao seu amanhã profissional. Teve como sujeitos 12 alunos concluintes do Curso de Graduação em Enfermagem de três Universidades de Pernambuco. Foram realizadas entrevistas gravadas e observação assistemática, nos meses de março e abril de 2003. Como resultados foram construídas as seguintes categorias: Escolha pela profissão de enfermagem; envolvimento com a formação profissional; reflexões quanto à formação acadêmica e perspectivas em relação ao futuro profissional.

This is a qualitative study aimed at: identifying significant factors in nurse education; presenting a nurse profile as perceived by an undergraduate student; getting to know the perspectives nursing students have for their future professional lives. The interviewees were twelve students in nursing undergraduate programs from three universities located in the state of Pernambuco, Brazil. Recorded interviews and non-systematic observation were carried out between March and April, 2003. The following categories were identified: choice of the nurse profession; involvement in professional education; reflections on academic education and perspectives for future professional lives.

Estudio cualitativo, cuyos objetivos fueron: identificar los factores significativos en la formación del enfermero; descubrir el perfil del enfermero, tal como lo ve el estudiante; conocer las perspectivas de los estudiantes respecto a su mañana/porvenir profesional. Tuvo como sujetos a 12 estudiantes que concluían el Curso de Enfermería de tres Universidades de Pernambuco,en Brasil.Se realizaron entrevistas grabadas y observación asistemáticas los meses de marzo y abril de 2003. Como resultado se construyeron las siguientes categorías: elección de la profesión de enfermería; compromiso con la formación profesional; reflexiones respecto a la formación académica y perspectivas respecto a su futuro profesional.