scholarly journals Óleo de girassol (Helianthus annus L.) Como cicatrizante de feridas em idosos diabéticos / Sunflower oil (Helianthus annus L.) As a wound healer in diabetic elderly people

2021 ◽  
Vol 4 (2) ◽  
pp. 4692-4703
Author(s):  
Sabrina Bezerra Torres ◽  
Ana Luiza Florencio Galvão de Queiroz ◽  
Andréia Nayara Araújo dos Santos ◽  
Gabriela Quirino Alves ◽  
Iran Alves da Silva ◽  
...  
2021 ◽  
Vol 10 (7) ◽  
pp. e3510716226
Author(s):  
Valentina Ribeiro Castro ◽  
Maria Clara dos Santos Furtado ◽  
Victória Maura Silva Bermúdez ◽  
Edilene Ferreira da Silva ◽  
Vera Lúcia Viana do Nascimento

Vegetable oils are extremely important for the human organism, being considered a source of energy and of fat-soluble vitamins (A, D, E and K), and fundamental in promoting the taste of food. Sunflower oil is obtained from the seed of the plant Helianthus annuus L., of the Compositae family, standing out for being the fourth oilseed in grain production and the fifth in cultivated area in the world. Another valuable seed used for oil extraction is sesame (Sesamum indicum, L.), which belongs to the Pedaliaceae family. Due to the quality and characteristics of some vegetable oils, which may change after long periods of storage, thus giving relevance to studies on the determination of these changes. From this, this work had the objective of evaluating the quality of the sesame and sunflower oil, commercial and cold extracted, to obtain more information about the alterations occurred during the storage period and its oxidative potential. The oleochemical analyzes were performed using the variables related to the iodine, peroxide, acidity and % free fatty acids (FFA) indices, where the analyzes were performed in triplicates. As a result, the commercialized sesame and sunflower oils showed values ​​above the limits recommended by the RDC No. 270, of September 22, 2005, in relation to the cold extracting sesame and sunflower oleochemical indexes presented adequate values. The contribution of the work developed shows that oils after extraction, industrial processing and depending on storage conditions can present vulnerability and compromise their quality.


2006 ◽  
Vol 76 (6) ◽  
pp. 359-366 ◽  
Author(s):  
Rodríguez-Rodríguez ◽  
Ortega ◽  
López-Sobaler ◽  
Aparicio ◽  
Bermejo ◽  
...  

This study investigated the relationship between the intake of antioxidant nutrients and the suffering of cataracts in 177 institutionalized elderly people (61 men and 116 women) aged ≥ 65 years. Dietary intake was monitored for 7 consecutive days using a "precise individual weighing" method. Subjects, who during their earlier years were exposed by their work to sunlight, had a greater risk of suffering cataracts (OR = 3.2; Cl: 1.1–9.3, P < 0.05) than those who worked indoors. A relationship was found between increased vitamin C intake and a reduced prevalence of cataracts (i.e., when comparing those above P95 for vitamin C intake with those below P5; (OR = 0.08; Cl: 0.01–0.75, P 0.05). Among subjects with cataracts, 12.1% had vitamin C intakes of < 61 mg/day (P10) and only 2.2% had intakes of > 183 mg/day (P95) (p < 0.01). Subjects who consumed > 3290 μg/day (P95) of lutein were less likely to have cataracts (OR = 0.086; Cl: 0.007–1.084; p < 0.05) than those whose consumption was < 256 μg/day (P5). In men, high intakes of zeaxanthin seemed to provide a protective effect against the problem (OR = 0.96; Cl: 0.91–0.99; p < 0.05). The results suggest an association exists between exposure to sunlight and the development of cataracts, and that vitamin C, lutein, and zeaxanthin offer some protection against this disorder.


2017 ◽  
Vol 87 (3-4) ◽  
pp. 179-190
Author(s):  
Amel Kanane ◽  
Fayrouz Rouaki ◽  
Mohamed Brahim Errahmani ◽  
Abdenour Laraba ◽  
Hayet Mesbah ◽  
...  

Abstract. The aim of this study is to evaluate the effect of α-tocopherol supplementation at two doses (600 and 1200 mg × kg–1) on kidney antioxidant status and the histopathological changes in Wistar rats after 12 weeks of exposure at different diets. Forty rats has been divided into 4 groups of 10 rats each, the control group received basal diet with 5 % fresh sunflower oil (FSO), the second group: 5 % oxidized sunflower oil (OSO), the third group: 5 % OSO supplemented with 600 mg × kg–1 α-tocopherol and the fourth group: 5 % OSO supplemented with 1200 mg × kg–1 α-tocopherol. In OSO groups, the results showed highly significant increases of LPO (from 31.3 ± 0.9 to 53.8 ± 1.2 nmol of MDA formed/min/mg protein, p < 0.0001) with a significant decrease (p < = 0.001) of the antioxidant enzymatic activities (CAT, SOD, GPX, GR and G6PDH), body weight (339 ± 9 to 290 ± 3 g) and α-tocopherol levels (13.6 ± 0.6 to 6.5 ± 0.4 μg/mg protein). In OSO groups with 600 mg × kg–1 α-tocopherol, an antioxidant effect was found, reflected by a return of the parameters to values similar to those of the control group. However, higher doses of α-tocopherol (1200 mg × kg–1) induced a depletion of antioxidant status, α-tocopherol levels (6.0 ± 0.3 μg/mg protein, p < 0.001) and a very highly significant rise (p < 0.0001) of LPO content (54.86 ± 0.01 nmol of MDA formed/min/mg protein). The kidney tissues also showed changes in glomerular, severe inflammatory cells infiltration, and formation of novel vessels. So, we can conclude that the oxidative stress is attenuated by a moderate administration of 600 mg × kg–1 α-tocopherol, while a pro-oxidant effect occurs at 1200 mg × kg–1 α-tocopherol.


Pflege ◽  
2001 ◽  
Vol 14 (1) ◽  
pp. 29-37 ◽  
Author(s):  
Anja Schopp ◽  
Theo Dassen ◽  
Maritta Välimäki ◽  
Helena Leino-Kilpi ◽  
Gerd Bansemir ◽  
...  

Ziel dieser Untersuchung war die Autonomie, Privatheit und die Umsetzung des Prinzips der «informierten Zustimmung» aus der Perspektive des institutionell zu betreuenden, älteren Menschen zu beschreiben. Die Untersuchung ist ein Teil des durch die EU-Kommission unterstützten BIOMED 2 Projektes «Patient’s autonomy and privacy in nursing interventions»1. Interviewdaten (n = 95) wurden in deutschen Kliniken der Geriatrie und Pflegeheimen gesammelt. Ergebnisse zeigten, dass die Teilnehmer in geringem Maß selbstbestimmte Entscheidungen treffen konnten. Das Prinzip der «informierten Zustimmung» wurde wenig umgesetzt. Ihre Privatheit sahen die Teilnehmer in Mehrbettzimmern sowie in Situationen des Ankleidens und bei der Verrichtung der Ausscheidungen nicht respektiert. Es ist anzunehmen, dass ältere Menschen wegen Informationsdefiziten, durch ihren Hilfsbedarf und durch die festgelegten Organisationsstrukturen der Pflegeeinrichtungen eine passive Krankenrolle übernehmen. Es wäre denkbar, dass die Autonomie der älteren Menschen gefördert werden könnte, wenn die Pflegekräfte sie in der Rolle des Fürsprechers bei selbstbestimmten Entscheidungen unterstützen würden. Bei den pflegerischen Interventionen würde die Umsetzung des Prinzips der «informierten Zustimmung» sowohl die Autonomie als auch die Respektierung der Privatheit fördern. Es ist außerdem anzunehmen, dass durch Flexibilisierung der Organisationsstrukturen der Pflegeeinrichtungen die Autonomie und Lebensqualität der älteren Menschen gefördert werden könnte.


PsycCRITIQUES ◽  
2005 ◽  
Vol 50 (15) ◽  
Author(s):  
Frederick J. Frese
Keyword(s):  

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