No abstract

Due to their mass production and intense consumption in human medicine, veterinary, and aquaculture, antibiotics have been widely detected in different ecosystems, leading to a growing worldwide concern. These and their byproducts are being continuously discarded in natural ecosystems via excretion of human and animal urine and feces, also domestic and hospital effluents. Residues of these drugs can persist in natural environments through bioaccumulation due to their difficult biodegradation. Also, they have a gradual deposition in sediments, aquatic surfaces, and groundwater. Studies have shown the presence of these drugs in aquatic environments, which can trigger severe changes in the composition and structure of the bacterial community, such as the ability to develop and propagate genes resistant to these pollutants. In this context, this review aims to address the effects of the antibiotics on microorganisms present in impacted aquatic environments.

Conflito de interesses:Não Contribuição dos autores: CEAS orientação do projeto, delineamento do estudo e elaboração do manuscrito. CPL elaboração do manuscrito. JJLN coleta, tabulação e redação do manuscrito. AVB redação do manuscrito Contato para correspondência: Carlos Eduardo Alves de Souza E-mail: cadu23fisio@yahoo.com.br Recebido: 17/05/2017; Aprovado: 13/11/2017 doi. org/10.17696/2318-3691.24.4.2017.797 Resumo Introdução: O aparecimento das alterações posturais em escolares pode estar relacionada à prática de hábitos posturais inadequados, como o transporte de peso excessivo nas mochilas escolares. Objetivo: Verificar se existe associação entre a utilização de mochilas pelos estudantes do ensino médio com escoliose. Casuística e Métodos: Trata-se de uma pesquisa descritiva trans-versal com abordagem quantitativa, com 152 estudantes do en-sino médio de duas escolas, que responderam a um formulário de coleta de dados e foram submetidos à avaliação postural por inspeção estática e fotogrametria. Resultados: A escoliose toracolombar estrutural foi a alteração postural mais frequente identificada a pós r ealização d o t este de Adams ( 68%). Hou-ve associação entre a presença de escoliose e gênero feminino (p=0,02), peso da mochila maior que 10% do peso do estu-dante (p= 0,01) e tipo de mochila unilateral (p= 0,003). Conclusão: Houve associação estatisticamente significante entre a escoliose toracolombar e o peso mochila maior que 10% da massa corpórea na amostra analisada, além do predomínio de mochila unilateral e gênero feminino.Descritores: Escoliose; Postura; Estudantes; Fotogrametria. IntroduçãoA etiologia para o desenvolvimento das disfunções posturais pode estar relacionada com a utilização de mochilas que excedem a carga indicada para pesagem corpórea em crianças e adolescentes (1) . Estes dispositivos são utilizados diariamente para o transporte de materiais, representando o esforço físico mais comum em relação ao manuseio. Esse hábito impõe sobrecargas nos ombros e na coluna vertebral, causando dor e desvios (2) . No período de crescimento, as cargas que são atribuídas podem alterar o tamanho, forma e estrutura da coluna vertebral, além de levar ao aparecimento de curvaturas posturais anormais nos estudantes, quando são aplicadas de forma rotineira (3) . AbstractIntroduction: The presence of postural changes in schoolchildren may be related to inappropriate posture habits, such as excessive weight transport in school backpacks. Objective: To verify if there is an association between the uses of backpacks by high school students and scoliosis. Patients and Methods: This is a cross-sectional descriptive research with a quantitative approach, with 152 high school students from two schools, who responded to a data collection form and were submitted to postural evaluation by static inspection and photogrammetry. Results: Structural thoracolumbar scoliosis was the most frequent postural change identified after the Adams test (68%). Results also shown that there was an association between the presence o...

Research Article IJBM (2020) 4:10 Phytochemical profile and cytotoxic activitys of Zanthoxylum tingoassuiba A. St. Hil extract The Caatinga phytogeographic domain represents 11 % of the Brazilian territory and presents a plant singularity that is not described anywhere else in the world. From this perspective, this study aimed to evaluate the phytochemical and cytotoxic profile of the aqueous extract of the plant species Zanthoxylum tingoassuiba A. ST. Hil, in addition to the evaluation of the photoprotective activity. The methodology used for these analyzes consisted of the collection and determination of secondary compounds of the species, by thin layer chromatography, in addition to the evaluation of the cytotoxic activity by different methods, as well as the evaluation of the photoprotective activity by spectrometry. As a result, it was noticed that the extract did not present erythrocyte hemolysis, as well as cytotoxicity by MTT in relation to the controls.

The objective of this work was to evaluate the biological potential from Aspidosperma pyrifolium Mart. & Zucc presents, through reports found in the literature. For this, articles were evaluated using compatible descriptors with the objective. As a result, it was observed that many studies have found several biological activities associated with the species.