2.2. Preparation of extract C. tapia bark was collected in the region of Recife city (Pernambuco, Brazil) and the extract was obtained by pulverizing dried bark [10% (w/v) in 150 mM NaCl] followed by agitation overnight at 4 8C. Afterwards, the extract was filtered through
Abstract:Crataeva tapia bark lectin was evaluated for its antitumor activity against sarcoma 180 in Swiss albino mice. The antiinflammatory and analgesic properties were investigated in models of inflammation and nociception. The anti-inflammatory assay was induced by carrageenan induced peritonitis and the analgesic activity was induced by acetic acid-induced writhing response. The lectin presents low toxicity with a LD 50 of 2,500 mg/kg body weight and significant antitumor activity causing inhibition of tumor growth. The lectin also promoted significant reduction (35.4%) in the number of neutrophil migration induced by carrageenan. Concerning its analgesic property, the lectin inhibits abdominal contractions induced by acetic acid. The current results revealed a lectin with significant antitumoral, anti-inflammatory and antinociceptive activities. Further investigations to unveil the exact mechanisms are needed.
Objetivo: Destacar, através de uma revisão narrativa, o manejo e medidas de controle da COVID-19 para as gestantes e os possíveis riscos durante a transmissão vertical e a amamentação. Utilizaram-se bases de dados PubMed e Science Direct que retrataram artigos sobre infecções virais, COVID-19, gestação e amamentação. Revisão bibliográfica: Alterações fisiológicas, metabólicas e vasculares podem agravar a apresentação clínica da COVID-19, promovendo disfunção endotelial, ativação do sistema complemento e um efeito pró-trombótico nas gestantes. Não há relatos da detecção do novo coronavírus nos líquidos amniótico e placentário, sangue do cordão umbilical ou no leite materno. No entanto, alguns estudos sugerem que é possível a transmissão vertical do vírus e uma maior prevalência de partos prematuros tem sido notificada. O tratamento inicia-se quando possíveis benefícios superam os potenciais riscos da terapia ao feto. Considerações finais: Procedimentos devem ser implementados para contornar as lacunas de conhecimento sobre o efeito da COVID-19 na gravidez, incluindo estratégias das vigilâncias sanitária, epidemiológica, pesquisas socioeconômicas e de soroprevalência.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.