Antidepressant activity of rose oxide essential oil: possible involvement of serotonergic transmission.

Rose oxide (RO) is a monoterpene found in rose oil fragrances. This monoterpene has been reported to possess anti-inflammatory activity, however, little is known regarding its pharmacological activity. The present study was carried out to evaluate its antidepressant action and possible mechanisms of action. Analysis of ADMET pharmacokinetic properties (absorption, distribution, metabolism, excretion and toxicity) of rose oxide was performed by computational prediction analysis. Behavioral tests were performed to assess the interaction between rose oxide and the central nervous system and antidepressant effect that includes: forced swim test (FST), tail suspension test (TST), open field test (OFT) and rota-rod test. The results of pharmacokinetic and toxicological properties indicate that rose oxide could be used orally, since it has good intestinal absorption as well as pharmacological and toxicological properties that can be similar to pharmacological compounds (regular hepatic metabolism and low toxicity). Treatment with 50 mg/kg of rose oxide was able to decrease the immobility time of animals not affected by FST and TST and was not able to alter the motor activity of the OFT and rota-rod test, suggesting modulation and antidepressant activity. Docking data suggest that rose oxide can bind to receptors in the serotonergic pathway. The results described here suggest that rose oxide has antidepressant activity, modulating the serotonergic pathway.

Desejo de doar leite: relação com características maternas / The desire to donate breastmilk: Relationship with maternal

Resumo Objetivo: relacionar o desejo de doar leite materno aos aspectos socio-demográficos, clínicos e obstétricos. Materiais e métodos: estudo transversal e analítico com abordagem quantitativa, realizado com 226 mulheres durante o puerpério imediato, em um Hospital de Referência do interior do Piauí, Brasil, entre dezembro de 2016 e junho de 2018. Na estatística analítica, realizaram-se os testes de Kolmogorov-Smirnov, Qui-quadrado de Pearson, Razão de verossimilhança e o teste t-Student. Resultados: a caracterização sociodemográfica revelou que as participantes do estudo eram predominantemente casadas (n = 165; 73 %), pardas (n = 145; 64,1 %) e 79 (34,9 %) praticavam atividade física. Das entrevistadas, 78,3 % (n = 177) desejavam ser doadoras de leite materno, o que indica relação significativa com os anos de estudo (p = 0,038) e com as que receberam orientações sobre o assunto durante o pré-natal (p = 0,028). Conclusões: o desejo de doar leite materno esteve significativamente relacionado às variáveis de maior escolaridade da mulher e às orientações recebidas no pré-natal sobre o assunto, o que demonstra a relevância da educação em saúde dentro do contexto.

Resumen Objetivo: relacionar el deseo de donar leche materna con aspectos sociode-mográficos, clínicos y obstétricos. Materiales y métodos: estudio transversal y analítico con enfoque cuantitativo, realizado con 226 mujeres durante el puerperio inmediato en un hospital de referencia en el interior de Piauí, Brasil, desde diciembre de 2016 hasta junio de 2018. En estadística analítica, se realizaron las pruebas de Kolmogorov-Smirnov, Chi-cuadrado de Pearson, razón de probabilidad y t de Student. Resultados: la caracterización sociodemográfica reveló que las participantes del estudio eran predominantemente casadas (n = 165; 73 %), mestizas (n = 145; 64,1 %) y 79 (34,9 %) practicaban actividad física. El 78,3 % (n = 177) de las entrevistadas deseaba ser donante de leche materna, lo que evidenció una relación significativa con los años de estudio (p = 0,038) y con aquellas que recibieron orientación sobre el tema durante la atención prenatal (p = 0,028). Conclusiones: el deseo de donar leche materna se relacionó significativamente con las variables de más alto nivel de escolaridad y la orientación prenatal sobre el tema, lo que demuestra la relevancia de la educación para la salud en el contexto.

Abstract Objective: To relate the desire to donate breastmilk to sociodemographic, clinical, and obstetric aspects. Materials and methods Cross-sectional and analytical study with quantitative approach, conducted with 226 women during the immediate postpartum period at a referral hospital in the interior of Piauí (Brazil) from December 2016 to June 2018. For analytical statistics, the Kolmogorov-Smirnov, Pearson's Chi-square, Likelihood Ratio and Student's t-tests were performed. Results: Sociodemographic characterization revealed that the study participants were predominantly married (n = 165; 73 %); mixed race (n = 145; 64.1 %), and 79 (34.9 %) practiced physical activity. Out of the total number on interviewees, 78.3 % (n = 177) wanted to be breast milk donors, showing a significant relationship with their years of study (p = 0.038) and being provided guidance on the subject during prenatal care (p = 0.028). Conclusions: The desire to donate breastmilk was significantly related to the variables of higher education of women and prenatal guidance on the subject, demonstrating the relevance of health education within this context.

Development of nanoparticulate systems with action in breast and ovarian cancer: nanotheragnostics.

The use of nanoparticulate systems with action in breast and ovarian cancer has been highlighted in recent years as an alternative to increasing the therapeutic index of conventional anticancer drugs. Thus, nanoparticles have advantageous characteristics in the treatment of cancer. Several nanocarriers of drugs and nanoparticles are described in the literature. The pharmacokinetics of the drugs can be modified by the use of nanocarriers, which in turn facilitate the specific delivery of the drug to the tumour cell. Therefore, the present work is a review that examines some nanosystems with nanoparticles for action in the treatment of breast cancer and ovarian cancer.