Introduction: Pregnancy is a time of physiological, psychological, personal and social changes for women. The role of the emotional and psychological aspect encompasses the entire period because as fetal development advances, the mother-baby relationship strengthens, making the mother vulnerable. Objectives: To collect, describe and analyze relevant information on mental health in pregnant women, both at different stages of gestation and before and during the COVID-19 pandemic. Methods: A literature search was conducted through PubMed, Google Scholar and Scielo using terminology compiled from MeSH and DeCs. Results: Pregnancy due to hormonal changes causes the presence of anxiety and depression that worsen as the stages of fetal development progress. These psychological disorders have greatly increased during the COVID-19 pandemic due to several reasons such as the relationship with the ...

Introduction: Breast cancer is a disease that is increasing its incidence annually, so in search of complementary alternatives for treatment have been studied some medicinal plants containing large amounts of polyphenols, which have anticancer effects as is the case of Cenchrus echinatus L. Objective: To determine the safety and protective effect of ethanol extract of Cenchrus echinatus L. (burdock) on breast cancer induced by 7,12-dimethylbenz[a]anthracene in rats. Methods: Preclinical, experimental study in male Balb/C53 mice and Holtzman rats of both sexes. Acute toxicity and toxicity at 45 days were calculated using probit and OECD methods, respectively; to evaluate the protective effect, the Barros 2004 method was used; tumor cell proliferation was also registered microscopically, using descriptive and inferential statistical analysis, considering p<0.05. Results: Safety studies ...