Abstract | BACKGROUND: METHODS: The present study investigated the effect of lutein, alone or combined with insulin on the progression of eye lens opacities in streptozotocin-diabetic rats for a period of 12 weeks. Tissue markers of oxidative stress were also determined at the end of the experiment. RESULTS: Herein we demonstrate that lutein treatment prevents the development and progression of cataracts (0 eyes with mature cataract, and ten out of 16 eyes with clear lenses in the lutein-treated diabetic animals group, vs. seven and three eyes in the non-treated diabetic group, respectively). Lipid peroxidation is significantly increased in diabetic lens (up to three-fold); lutein and insulin, alone or in combination, are able to prevent this alteration. Only insulin and lutein together could prevent the diabetes-induced decrease of glutathione content. CONCLUSIONS: The combined treatment with lutein and insulin is useful in preventing the development of cataracts in streptozotocin-induced diabetic rats, supporting its utility in diabetes management, especially when a tight metabolic control is difficult to achieve.
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Authors | Emma Arnal, María Miranda, Inmaculada Almansa, María Muriach, Jorge M Barcia, Francisco J Romero, Manuel Diaz-Llopis, Francisco Bosch-Morell |
Journal | Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie
(Graefes Arch Clin Exp Ophthalmol)
Vol. 247
Issue 1
Pg. 115-20
(Jan 2009)
ISSN: 1435-702X [Electronic] Germany |
PMID | 18766362
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Blood Glucose
- Glycated Hemoglobin A
- Hypoglycemic Agents
- Insulin
- Malondialdehyde
- Glutathione Peroxidase
- Glutathione
- Lutein
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Topics |
- Animals
- Blood Glucose
(metabolism)
- Body Weight
- Cataract
(complications, metabolism, prevention & control)
- Diabetes Mellitus, Experimental
(complications, drug therapy, metabolism)
- Diabetic Retinopathy
(complications, drug therapy, metabolism)
- Disease Models, Animal
- Disease Progression
- Drug Therapy, Combination
- Glutathione
(metabolism)
- Glutathione Peroxidase
(metabolism)
- Glycated Hemoglobin
(metabolism)
- Hypoglycemic Agents
(pharmacology)
- Insulin
(pharmacology)
- Lipid Peroxidation
(drug effects)
- Lutein
(pharmacology)
- Male
- Malondialdehyde
(metabolism)
- Oxidative Stress
(drug effects)
- Rats
- Rats, Wistar
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