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The impact of the lacto-ovo vegetarian diet on the erythrocyte superoxide dismutase activity: a study in the Romanian population

Background/Objectives: Recent studies have shown that vitamin B12 scavenges superoxide anion as effectively as superoxide dismutase (SOD), and has a key role in the defense against oxidative stress. The status of vitamin B12 is suboptimal in a substantial number of vegans and even vegetarians. We th...

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Published in:European journal of clinical nutrition 2014-02, Vol.68 (2), p.184-188
Main Authors: Boancă, M M, Colosi, H A, Crăciun, E C
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description Background/Objectives: Recent studies have shown that vitamin B12 scavenges superoxide anion as effectively as superoxide dismutase (SOD), and has a key role in the defense against oxidative stress. The status of vitamin B12 is suboptimal in a substantial number of vegans and even vegetarians. We therefore evaluated in lacto-ovo vegetarians (LOVs) who did not take vitamin B12 supplements the impact of the duration of this diet on the vitamin B12 status, the erythrocyte SOD activity and the serum malondialdehyde (MDA) concentration. Subjects/Methods: The study group included 38 non-vegetarians and 48 LOVs divided, according to the duration of this diet, into two subgroups: LOV1 (2–10 years) and LOV2 (11–29 years). The erythrocyte SOD activity and the serum concentrations of vitamin B12 and MDA were assayed. Results: In LOVs, the mean serum vitamin B12 concentration, the erythrocyte SOD activity and the mean serum MDA concentration were statistically significantly lower that in non-vegetarians. No significant association between the serum vitamin B12 and MDA concentrations and the duration of the LOV diet were observed. A significant inverse linear correlation between SOD activity and the duration of adherence to LOV diet was observed in LOVs. Conclusions: The duration of LOV diet has impact only on SOD activity. Further researches, both in vitro and in vivo , are necessary to understand the underlying molecular mechanism.
doi_str_mv 10.1038/ejcn.2013.179
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The status of vitamin B12 is suboptimal in a substantial number of vegans and even vegetarians. We therefore evaluated in lacto-ovo vegetarians (LOVs) who did not take vitamin B12 supplements the impact of the duration of this diet on the vitamin B12 status, the erythrocyte SOD activity and the serum malondialdehyde (MDA) concentration. Subjects/Methods: The study group included 38 non-vegetarians and 48 LOVs divided, according to the duration of this diet, into two subgroups: LOV1 (2–10 years) and LOV2 (11–29 years). The erythrocyte SOD activity and the serum concentrations of vitamin B12 and MDA were assayed. Results: In LOVs, the mean serum vitamin B12 concentration, the erythrocyte SOD activity and the mean serum MDA concentration were statistically significantly lower that in non-vegetarians. No significant association between the serum vitamin B12 and MDA concentrations and the duration of the LOV diet were observed. 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ispartof European journal of clinical nutrition, 2014-02, Vol.68 (2), p.184-188
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subjects 631/45
692/700/2814
Adult
Antioxidants
Biological and medical sciences
Clinical Nutrition
Cyanocobalamin
Diet
Diet, Vegetarian - adverse effects
Dietary supplements
Enzymes
Epidemiology
Erythrocytes
Erythrocytes - enzymology
Feeding. Feeding behavior
Female
Fundamental and applied biological sciences. Psychology
Humans
Internal Medicine
Male
Malondialdehyde
Malondialdehyde - blood
Measurement
Medical sciences
Medicine
Medicine & Public Health
Metabolic Diseases
original-article
Oxidative Stress
Physiological aspects
Population studies
Public Health
Romania
Subgroups
Superoxide anions
Superoxide dismutase
Superoxide Dismutase - blood
Vegetarian diet
Vegetarianism
Vertebrates: anatomy and physiology, studies on body, several organs or systems
Vitamin B
Vitamin B 12 Deficiency - epidemiology
Vitamin B12
title The impact of the lacto-ovo vegetarian diet on the erythrocyte superoxide dismutase activity: a study in the Romanian population
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