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1.
Ann Nutr Metab ; 52(4): 322-8, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-18714150

RESUMEN

AIMS: This study was conducted to determine the antioxidant capacity, immunomodulatory and lipid-lowering effects of spirulina in healthy elderly subjects and to document the effectiveness of spirulina as a functional food for the elderly. METHODS: A randomized double-blind, placebo-controlled study was performed. The subjects were 78 individuals aged 60-87 years and were randomly assigned in a blinded fashion to receive either spirulina or placebo. The elderly were instructed to consume the spirulina or placebo at home, 8 g/day, for 16 consecutive weeks. RESULTS: In male subjects, a significant plasma cholesterol-lowering effect was observed after the spirulina intervention (p < 0.05). Spirulina supplementation resulted in a significant rise in plasma interleukin (IL)-2 concentration, and a significant reduction in IL-6 concentration. A significant time-by-treatment intervention for total antioxidant status was observed between spirulina and placebo groups (p < 0.05). In female subjects, significant increases in IL-2 level and superoxide dismutase activity were observed (p < 0.05) after spirulina supplementation. There were significant reductions in total cholesterol in female subjects. CONCLUSIONS: The results demonstrate that spirulina has favorable effects on lipid profiles, immune variables, and antioxidant capacity in healthy, elderly male and female subjects and is suitable as a functional food.


Asunto(s)
Anticolesterolemiantes/uso terapéutico , Antioxidantes/administración & dosificación , Hipercolesterolemia/terapia , Spirulina/fisiología , Anciano , Anciano de 80 o más Años , Anticolesterolemiantes/administración & dosificación , Anticolesterolemiantes/inmunología , Suplementos Dietéticos , Método Doble Ciego , Femenino , Alimentos Orgánicos , Humanos , Interleucina-2/sangre , Interleucina-6/sangre , Corea (Geográfico) , Masculino , Persona de Mediana Edad , Factores Sexuales
2.
Nutr Res Pract ; 2(4): 295-300, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-20016733

RESUMEN

Spirulina is a microscopic and filamentous cyanobacterium that contains essential amino acids, essential fatty acids, vitamins, minerals and anti-oxidative components. The purpose of this study was to examine effects of spirulina intervention in Korean patients with type 2 diabetes. The subjects were 37 type 2 diabetic patients who visited a diabetic clinic in Seoul and randomly assigned into spirulina (8 g/day) or control group. During the intervention period of 12 weeks, subjects were asked to keep usual diet and prohibited to take any functional foods or dietary supplements. Spirulina supplementation for 12 weeks did not affect anthropometric parameters, however, lowered plasma triglycerides level significantly (p<0.05). Spirulina supplementation also resulted in a significant reduction in plasma malondialdehyde level (p<0.05) and an increase in plasma adiponectin level (p<0.1). The lipid lowering effect of spirulina supplementation was different according to serum lipid levels of the subjects before entering the intervention. The subjects with higher initial triglyceride level showed higher reduction in plasma triglyceride and blood pressure. The subjects with higher initial total cholesterol and LDL-cholesterol level showed higher reduction in plasma concentrations of total cholesterol, LDL-cholesterol, IL-6, and blood pressure. It seems that spirulina supplementation is more effective in subjects with dyslipidemia. This study provides the evidence for beneficial effects of spirulina supplementation on blood lipid profiles, inflammatory variables, and antioxidant capacity in Korean patients with type 2 diabetes. The results suggest that spirulina is a promising agent as a functional food for diabetes management.

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