Objective: To describe the anxiolytic activity and possible mechanisms of action on the central nervous system of plants found in the region known as legal Amazon in the Brazilian territory. Bibliographic Review: For this, five plants popularly used as tranquilizers and to treat insomnia in the forms of teas and extracts were selected, they are: passion fruit, valerian, chamomile, lemon grass and bay leaf. A bibliographic survey of articles, mainly original research, reporting comparative studies of the anxiolytic effects of each plant against control groups, as well as its possible mechanisms of action on the nervous system through preclinical and clinical studies, was performed. Conclusion: All the selected plants exhibited comparable and even superior anxiolytic effects when compared to classes of drugs such as benzodiazepines, with minimization or elimination of side/adverse effects. In addition, all reviewed studies indicated some involvement of gamma-aminobutyric acid (GABA) receptors activation by plant chemical constituents in anxiolytic action. Due to the minimization of adverse effects and the absence of dependence, herbal medicine appears as an important alternative therapy to treat anxiety disorders.
Objetivo: Entender, a partir de uma revisão narrativa, os possíveis impactos do SARS-CoV-2 nas gestantes e para o desenvolvimento fetal. Revisão bibliográfica: Constatou-se que a maioria das gestantes desenvolveu algum tipo de sintoma da doença e a sintomatologia apresentada foi diversa, sendo febre e tosse as mais comuns. A progressão da COVID-19 em gestantes está associada a um processo de coagulopatia, com a maior possibilidade do desenvolvimento de coágulos intravasculares disseminados nos espaços intervilosos da placenta afetando as trocas gasosas e de nutrientes entre mãe e feto. Exames laboratoriais revelam que a proteína C reativa pode estar aumentada, também os níveis elevados de enzimas hepáticas (TGO e TGP) e creatina fosfoquinase, dímero-D e troponina elevada. Não há informações consistentes para afirmar transmissão no binômio materno-fetal. Considerações finais: A sintomatologia de grávidas é semelhante à de não grávidas e não há evidências consistentes de infecção intrauterina causada por transmissão vertical em mulheres com SARS-CoV-2 no terceiro trimestre de gravidez.
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