21 documents found, page 1 of 3
Sarcopenia in Women with Anorectal Dysfunctions—A Female Sarcopelvic Study
Vieira, Ana; Pais, Sandra; Martins, Viviana; Castelo, Barbara; Saraiva, MiguelAbstract: Background: Anorectal dysfunctions (ARDs) include fecal incontinence (FI) and functional defecation disorders (FDDs). The pelvic floor muscles play a central role in the physiology of continence and defecation. We aimed to investigate the prevalence of sarcopenia in a female group with anorectal dysfunctions and compare them with a healthy female age-matched group. As secondary objectives, the relatio...
Editorial: Innovative Strategies for Enhancing Crop Productivity and Soil Healt...
Racioppo, Angela; Martins, Viviana; Speranza, Barbara; Laranjo, MartaEditorial que sintetiza avanços em estratégias sustentáveis de aumento da produtividade agrícola e da saúde do solo com recurso a bactérias promotoras do crescimento vegetal (PGPB) e compostos nano-orgânicos.
Food-related quality of life and its predictors in inflammatory bowel disease
Oliveira, Raquel; Martins, Viviana; Sousa, Helena Tavares; Roseira, JoanaBackground Inflammatory bowel disease (IBD) is associated with dietary restrictions and food- and drink-driven daily life limitations. Food-related quality of life (FR-QoL) is still an under-addressed issue in IBD. Aim We aimed to study determinants of FR-QoL in an IBD cohort, namely objective measures of disease activity. Methods A cross-sectional case-control study was conducted in a Tertiary Hospital, includ...
Early activation of antioxidant responses in Ni-stressed tomato cultivars deter...
Spormann, Sofia; Soares, Cristiano; Martins, Viviana; Azenha, Manuel; Gerós, H.; Fidalgo, FernandaThroughout their life cycle, plants are subjected to a variety of environmental constraints, including abiotic stresses. The present study aimed at characterizing the responses of the two tomato cultivars Gold Nugget (GN) and Purple Calabash (PC) exposed to a combination of nickel (Ni) and drought. The following hypotheses were pursued: (i) the activation of responses to one stressor eases further adjustments t...
Transcriptional responses of Hypericum perforatum cells to Agrobacterium tumefa...
Hou, Weina; Singh, Rupesh K.; Martins, Viviana; Tenllado, Francisco; Gregory, Franklin; Dias, AlbertoHypericum perforatum L. (St. John's wort) is a well-known medicinal plant that possesses secondary metabolites with beneficial pharmacological properties. However, improvement in the production of secondary metabolites via genetic manipulation is a challenging task as H. perforatum remains recalcitrant to Agrobacterium tumefaciens-mediated transformation. Here, the transcripts of key genes involved in several p...
Exogenous calcium delays grape berry maturation in the white cv. loureiro while...
Martins, Viviana; Unlubayir, Marianne; Teixeira, António; Lanoue, Arnaud; Gerós, H.Vineyard calcium (Ca) sprays have been increasingly used by grape growers to improve fruit firmness and thus maintain quality, particularly in periods of heavy rains and hail. The observation that Ca visibly modified berry size, texture, and color in the most prominent white cultivar of the DOC region Vinhos Verdes, cultivar (cv.) Loureiro, led us to hypothesize that Ca induced metabolic rearrangements that res...
The restructuring of grape berry waxes by calcium changes the surface microbiota
Martins, Viviana; Szakiel, Anna; Paczkowski, Cezary; Teixeira, António; Gerós, H.The observation that exogenous Ca shifted the polyphenolic profile of grape berries and conferred a glossy appearance to mature fruits led us to hypothesize that the composition of grape berry waxes and thus surface microbiota are modified. In two cultivars sharing the same microclimate, the triterpenoid and steroid profile of berry cuticle was characterized by a targeted metabolomic approach, and surface micro...
Calcium and methyl jasmonate cross-talk in the secondary metabolism of grape cells
Martins, Viviana; Unlubayir, Marianne; Teixeira, António; Gerós, H.; Lanoue, ArnaudIn grape cell cultures cv. Gamay Fréaux var. Teinturier, Ca was shown to decrease cell pigmentation through the inhibition of anthocyanin biosynthesis, while stimulating stilbenoids accumulation. Because methyl jasmonate (MeJA) is a well-known inducer of secondary metabolism in grape cells, and Ca antagonizes its stimulatory effect over several enzymes of core metabolic branches, in the present study we hypothe...
Vineyard calcium sprays reduce the damage of postharvest grape berries by stimu...
Martins, Viviana; Soares, Cristiano; Spormann, Sofia; Fidalgo, Fernanda; Gerós, H.Calcium supplements have been increasingly used for decay prevention, sanitation and nutritional enrichment of fruits, as more environmentally friendly alternatives to fungicides. However, little is known on the effects of these supplements on grape berry biochemical and molecular properties during storage. In this study, we addressed the hypothesis that the application of calcium chloride (CaCl2) in grapevines...
Chitosan Application in Vineyards (Vitis vinifera L. cv. Tinto Cão) Induces Acc...
Singh, Rupesh Kumar; Martins, Viviana; Soares, Bruno; Castro, Isaura; Falco, VirgilioDespite the numerous beneficial properties and uses of chitosan in agriculture, the molecular mechanisms behind its elicitation potential are still unclear. This study aimed at understanding the e ect of chitosan application in the levels of phenolic compounds of Vitis vinifera L. red grapes berry skin (cv. Tinto Cão) during veraison. Grapevines were treated with chitosan (0.01% in 0.01% acetic acid) while cont...