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We aimed to systematically categorize evidence on the types of early visual stimulation applied to preterm infants (PTIs) admitted to neonatal intensive care units (NICUs), aiming to improve visual function parameters. This study was conducted according to PRISMA and registered in PROSPERO with CRD42022333753. Last search was conducted on March 15, 2023, in four different databases. Articles written in English, Portuguese, Spanish, or Italian, and available in full text were included. Two independent authors performed study selection, data extraction, and bias risk assessment. If there was any disagreement, a third author was contacted. A total of eight studies were included. From these, 62.5% presented a low risk of bias. 100% used a multisensory intervention, which included visual stimulation. In 50%, visual intervention consisted of black and white stimulation cards placed inside the incubator for three minutes. The outcomes showed positive benefits in visual function parameters and other reported clinical benefits in breastfeeding and neuromuscular development. This review demonstrated there is still scarce literature on the effects of early visual stimulation on purely visual functional outcomes, although the existing findings are promising. Parental involvement has been generating unquestionable benefits for the binomial mother-infant and gaining greater acceptance by health professionals.
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Objective To evaluate the systemic effect of Hancornia speciosa latex on bone neoformation and mineralization in rats. Methods For that, the latex was first collected, and its composition was analyzed. A total of 30 male Wistar rats were used, which were simultaneously submitted to two surgical procedures: extraction of an incisor and creation of a defect with 2 mm in diameter in the parietal bone. The rats were divided into two groups: systemic control (SC) systemic latex (SX) which were administered, orally and daily, 1.5 mL of water or a solution containing 50% of water and 50% of latex by gavage, respectively. After 15 days of the treatment, the animals were euthanized and their samples were collected. Results The results were statistically analyzed, and the level of significance was set at 0.05. We showed that H. speciosa latex contained calcium. The oral and daily administration of the latex for 15 days increased the contents of calcium and phosphorus in the basal bone and newly-formed bone in the mandibular alveolus of rats. Conclusion The present was a pioneer study demonstrating the potential of H. speciosa latex in increasing bone mineralization. Our results may aid in the conception and development of a natural drug.
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Abstract Objective To evaluate the systemic effect of Hancornia speciosa latex on bone neoformation and mineralization in rats. Methods For that, the latex was first collected, and its composition was analyzed. A total of 30 male Wistar rats were used, which were simultaneously submitted to two surgical procedures: extraction of an incisor and creation of a defect with 2 mm in diameter in the parietal bone. The rats were divided into two groups: systemic control (SC) systemic latex (SX) which were administered, orally and daily, 1.5 mL of water or a solution containing 50% of water and 50% of latex by gavage, respectively. After 15 days of the treatment, the animals were euthanized and their samples were collected. Results The results were statistically analyzed, and the level of significance was set at 0.05. We showed that H. speciosa latex contained calcium. The oral and daily administration of the latex for 15 days increased the contents of calcium and phosphorus in the basal bone and newly-formed bone in the mandibular alveolus of rats. Conclusion The present was a pioneer study demonstrating the potential of H. speciosa latex in increasing bone mineralization. Our results may aid in the conception and development of a natural drug.
Resumo Objetivo Avaliar o efeito sistêmico do látex de Hancornia especiosa na neoformação óssea e mineralização em ratos. Métodos Para isso, primeiro o látex foi coletado, e sua composição foi analisada. No estudo, foram utilizados 30 ratos Wistar machos submetidos simultaneamente a dois procedimentos cirúrgicos: extração de incisivo e criação de um defeito de 2 mm de diâmetro no osso parietal. Os ratos foram divididos em dois grupos: controle sistêmico (CS) e látex sistêmico (XS), aos quais foi administrado, oral e diariamente, 1,5 mL de água ou uma solução contendo 50% de água e 50% de látex por gavagem, respectivamente. Após 15 dias do tratamento, os animais foram eutanizados, e suas amostras, coletadas. Resultados Os resultados foram analisados estatisticamente, e o nível de significância foi fixado em 0,05. Mostramos que o látex de H. speciosa continha cálcio. A administração oral e diária deste látex por 15 dias aumentou o conteúdo de cálcio e fósforo de osso basal e de osso recém-formado no alvéolo mandibular de ratos. Conclusão Este foi um estudo pioneiro, que demonstrou o potencial do látex de H. speciosa no aumento da mineralização óssea. Nossos resultados podem ajudar na concepção e no desenvolvimento de uma droga natural.