Optimal nutrition: vitamin E

Morrissey, P.A.; Sheehy, P. J. A.

doi:10.1017/s0029665199000609

Cited by 79 publications

(47 citation statements)

References 74 publications

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“…Recently, it has been proposed that the adequate plasma concentration of α -tocopherol to prevent neoplasm and cardiovascular disorders is more than 30 μmol/l. 31 In contrast to Hozyasz et al, 32 who reported that in untreated patients the levels of plasma tocopherol were significantly lower compared with those on GFD, 32 we showed a significantly decreased serum concentrations of vitamin E in both celiac groups regardless of compliance with diet. Noteworthy, the GFD did not increase the level of this vitamin.…”

Section: Results Blood Tests In Controls and Celiac Patientscontrasting

confidence: 92%

Alterations in serum levels of selected markers of oxidative imbalance in adult celiac patients with extraintestinal manifestations - pilot study

Piątek-Guziewicz¹,

Zagrodzki²,

Paśko³

et al. 2017

Polish Archives of Internal Medicine

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Section: Results Blood Tests In Controls and Celiac Patientscontrasting

confidence: 92%

Alterations in serum levels of selected markers of oxidative imbalance in adult celiac patients with extraintestinal manifestations - pilot study

Piątek-Guziewicz¹,

Zagrodzki²,

Paśko³

et al. 2017

Polish Archives of Internal Medicine

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“…Para alfa-tocoferol no soro: < 499,6 (nível deficiente), 499,6 a 697,7 (nível baixo) e > 697,7 (nível aceitável) 9 .…”

Section: Métodosunclassified

Vitamin E in human serum and colostrum under fasting and postprandial conditions

et al. 2010

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Objective: To evaluate alpha-tocopherol concentrations in maternal serum and colostrum under fasting and postprandial conditions. Methods:Thirty healthy childbearing women were recruited in a public maternity hospital, and samples of blood, fasting colostrum, and postprandial colostrum were collected from them up to 12 hours after delivery. Results:The serum alpha-tocopherol concentration was 1 , 9 3 9 . 8 ± 7 6 6 . 0 μ g / d L . A l p h a -t o c o p h e r o l l e ve l s i n f a s t i n g colostrum (1,603.4±911.0 μg/dL) and in postprandial colostrum (1,515.0±890.9 μg/dL) did not demonstrate a statistically significant difference (p > 0.05). There was correlation between alpha-tocopherol levels in fasting and postprandial colostrum (p < 0.05), but not between serum and colostrum. Conclusions:The lack of correlation between alpha-tocopherol levels in plasma and in colostrum, and the correlation between alphatocopherol concentrations in fasting and postprandial colostrum support the existence of a mechanism that controls the transfer of this nutrient, regardless of dietary intake.J Pediatr (Rio J). 2010;86(4):345-348: Alpha-tocopherol, serum, colostrum. ResumoObjetivo: Avaliar a concentração de alfa-tocoferol no soro e colostro maternos, seja em condições de jejum ou pós-prandial. Métodos:Trinta parturientes saudáveis atendidas em uma maternidade pública foram recrutadas para o estudo, e amostras de sangue, colostro em jejum e colostro pós-prandial foram coletadas até 12 horas pós-parto.Resultados: A concentração sérica de alfa-tocoferol foi de 1.939,8±766,0 μg/dL. O alfa-tocoferol no colostro em jejum, 1.603,4±911,0 μg/dL, e após a refeição, 1.515,0±890,9 μg/dL, não apresentaram diferença significativa (p > 0,05). Houve correlação entre o alfa-tocoferol do colostro na condição de jejum e no pós-prandial (p < 0,05), mas não entre o soro e o colostro.Conclusão: A falta de correlação entre o alfa-tocoferol no plasma e no colostro e a correlação entre o alfa-tocoferol no colostro em jejum e no pós-prandial reforçam a hipótese de um mecanismo de controle na passagem desse micronutriente, independente do aporte dietético. IntroduçãoA vitamina E é um termo genérico utilizado para designar oito compostos naturais, sendo o alfa-tocoferol o que possui maior atividade biológica 1 . Estudos epidemiológicos têm indicado um provável envolvimento da deficiência de vitamina E na patogênese da aterosclerose, diabetes e alguns tipos de câncer, bem como na modulação da inflamação e resposta imune 2 .Durante a gestação, a transferência placentária do alfa-tocoferol é limitada, e o feto apresenta baixa concentração circulante dessa vitamina. Após o parto, o leite é de extrema importância para o abastecimento do alfatocoferol ao recém-nascido, pois é essencial na defesa contra a toxicidade do oxigênio e auxilia a estimular o desenvolvimento de seu sistema imunológico 1 .1. Doutor, Bioquímica. Professor adjunto IV, Departamento de Bioquímica, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal, RN. ...

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“…Considering this aspect, nutritional biomarkers, such as circulating carotenoids, folate and vitamin E, represent an additional measure to guarantee the quality of dietetic information since they do not depend on memory and are not prone to the same type of measurement errors (20,21) . Plasma concentrations of carotenoids and folate are associated with recent F&V intake (22)(23)(24) , and vitamin E status has been considered a good indicator of healthy food choices (25) .…”

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confidence: 99%

Associations between low consumption of fruits and vegetables and nutritional deficiencies in Brazilian schoolchildren

Augusto

Cobayashi

Cardoso

2014

Public Health Nutr.

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Objective: We examined associations between the frequency of fruit and vegetable (F&V) consumption and nutritional deficiencies among Brazilian schoolchildren. Design: A cross-sectional, population-based study was performed. A short FFQ was used to assess consumption of fruits and vegetables (F&V) over the past month. The prevalence ratios (PR) and 95 % confidence intervals for stunting, obesity, anaemia, vitamin A and folate deficiencies, vitamin E and vitamin D insufficiencies were estimated for low F&V consumption frequency (vegetables ≤3 times/month and fruits ≤3 times/week) and compared with children with usual F&V consumption frequency (vegetables ≥1 time/week and fruits ≥4 times/week). Setting: Acrelândia, Western Brazilian Amazon. Subjects: A total of 702 children aged 4-10 years. Results: Only 5 % of children consumed F&V ≥5 times/d. Prevalence of deficiency was 31 %, 15 %, 9 % and 2 % for vitamins D, A, E and folate, respectively. Overall, 6·3 % of children were anaemic, 3·3 % were stunted, 2·7 % were obese and 33 % had multiple nutritional deficiencies. Low frequency of F&V consumption was associated with lower plasma concentrations of carotenoids and vitamin E. Nutritional deficiencies were higher among non-consumers of F&V when compared with usual consumers: anaemia (PR = 1·9; 95 % CI 1·0, 3·7), vitamin E insufficiency (PR = 2·5; 95 % CI 1·5, 4·2), vitamin D insufficiency (PR = 1·5; 95 % CI 1·1, 1·9) and stunting (PR = 2·6; 95 % CI 1·1, 6·1). Conclusions: In our study, the occurrence of nutritional deficiencies in children with low F&V consumption was twice as high as in children with usual F&V consumption, reinforcing the importance of effective actions to promote the consumption of F&V.

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Optimal nutrition: vitamin E

Cited by 79 publications

References 74 publications

Alterations in serum levels of selected markers of oxidative imbalance in adult celiac patients with extraintestinal manifestations - pilot study

Alterations in serum levels of selected markers of oxidative imbalance in adult celiac patients with extraintestinal manifestations - pilot study

Vitamin E in human serum and colostrum under fasting and postprandial conditions

Associations between low consumption of fruits and vegetables and nutritional deficiencies in Brazilian schoolchildren

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