Browsing by Author "Martins, Karina Vitoria Cipriana"
Now showing 1 - 2 of 2
Results Per Page
Sort Options
- Can physical exercise modify intestinal integrity and gut microbiota composition? A systematic review of in vivo studiesPublication . Pereira, Stephanie Michelin Santana; São José, Vinicius Parzanini Brilhante de; Silva, Alessandra da; Martins, Karina Vitoria Cipriana; Leite , Luciano Bernardes; Forte, Pedro; Natali, Antônio José; Martino, Hércia Stampini Duarte; Lucia, Ceres Mattos Della; Bressan, JosefinaThere is little evidence about how physical exercise affects the gut microbiota since studies in the field are relatively recent. Thus, we aimed to systematically review the main effects of regular physical exercise on the intestinal integrity and microbiota composition in animal models, discuss the mechanisms involved, and indicate future directions. Searches for original articles were performed in PubMed/MEDLINE, Scopus, Web of Science, and Embase. A total of 18 studies were selected. These studies suggest that physical exercise has a significant impact on the gut microbiota. Voluntary running increased the thickness of duodenal villi and microbiota diversity but reduced its richness. Low-intensity treadmill running increased the abundance of the phylum Actinobacteria and the family Bifidobacteriaceae, while that of moderate-intensity reduced the Bacteroides/Prevotella ratio. High-intensity swimming and treadmill running altered the gut microbiota, evidenced by beta-diversity, and increased the Shannon and Chao indices but reduced short-chain fatty acids. Resistance exercise increased the Chao index and altered the functionality of the gut microbiota, increasing carbohydrate metabolism and reducing lipid and amino acid metabolism. Thus, regular physical exercise of different intensities and types can modify the gut microbiota, and the exercise benefits appear to be positively associated with training intensity.
- Soybean Flour Fortified with Gryllus assimilis Powder to Increase Iron Bioavailability Improves Gut Health and Oxidative Balance In VivoPublication . Barnabé, Michele Lílian da Fonseca; Vicente, Laura Célia de Oliveira Souza; Martins, Karina Vitoria Cipriana; Lacerda, Gabrieli Fernandes; Rodrigues, Elias; Oliveira, Lívya Alves; Dias, Kelly Aparecida; Pereira, Stephanie Michelin Santana; São José, Vinicius Parzanini Brilhante de; Dias, Manoela Maciel dos Santos; Calhelha, Ricardo C.; Leite, Luciano Bernardes; Ribeiro, Lúcia; Carvalho, Izabela Maria Montezano de; Silva, Bárbara Pereira da; Martino, Hércia Stampini Duarte; Gonçalves, Reggiani Vilela; Della Lucia, Ceres MattosInsects like Gryllus assimilis have an excellent nutritional profile, including iron. However, the bioavailability of this iron and its effects on intestinal health and oxidative balance remain unclear. To enhance acceptance, insects can be used in powder form and combined with common flours. Objective: This study evaluates the effects of Gryllus assimilis powder, alone or with soy flour, on iron bioavailability, intestinal health, and oxidative balance in rodents. Methods: Using the hemoglobin depletion/repletion method, 32 male Wistar rats were divided into four groups: A (standard diet + ferrous sulfate), B (diet + Gryllus assimilis + soy flour), C (diet + Gryllus assimilis), and D (diet + soy flour). Hemoglobin levels, regeneration efficiency, biological value, serum markers, intestinal health, and oxidative balance were assessed. Results: Food intake, weight gain, and bioavailability measures showed no differences. However, the Gryllus + soy group showed higher weekly and final hemoglobin levels than Gryllus alone. This combination also improved acetic acid levels, fecal moisture, and oxidative balance, increasing superoxide dismutase activity while reducing peroxidation products compared to Gryllus alone. Conclusion: These findings highlight the potential benefits of combining Gryllus assimilis with soy flour for iron bioavailability and overall health.