The Protective Effects of Lupine (Lupinus albus) Fruit Extract Against to Destructive Effects of Hyperglycemia in Type I Diabetic Rats

Abstract

Backround: Lupinus albus is a member of Fabaceae family. As a natural or cultivated plant, Lupinus albus is distributed in Europe, Balkans and Turkey, especially in Marmara and Aegean regions. The lupine is a nutritious and protective plant against diabetes. Objective: In the present study, the effects of Lupinus albus fruits on malondialdehyde (MDA), reduced glutathione (GSH), total protein, ADEK vitamins, and cholesterol values, which are the indicators of oxidative damage and antioxidant defense. In this regard, muscle, liver, renal, and brain tissues of STZ-induced type I diabetes rats were studied. Methods: The analyzes of ADEK vitamins and cholesterol levels in tissues were performed via Shimadzu HPLC device. The lipid peroxidation levels were measured at 532 nm in spectrophotometer. Determination of GSH was read at 412 nm against blank, and for the total protein levels Lowry method was applied. Results: According to the results obtained, it was determined that, among the rats with induced type I diabetes, the group applied lupine fruit extract was found to have increased GSH level and decreased MDA levels in all the tissues. The protein values were increased in liver tissues but decreased in the other tissues. The level of vitamins were significantly increased in almost all the tissues in diabetic group. Conclusion: In the present study, it was shown that the lupine reduced the devastating effects of type I diabetes by decreasing the fasting blood glucose and lipid peroxidation values and increasing the glutathione level in comparison to the diabetic group.

Liver Antioxidant Capacity and Steatosis in Laying Hens Exposed to Various Quantities of Lupin (Lupinus angustifolius) Seeds in the Diet

“…Previously published results indicate that the long-term use of Lupinus angustifolius L. protein hydrolysate in the diet of mice reduces the concentration of lipid peroxidation products in the liver, including malondialdehyde (MDA), thus preventing MAFLD (metabolic-associated fatty liver disease) [48]. Similarly, the use of Lupinus albus seed extract in mice with type 1 diabetes reduced MDA concentration in the muscle, liver, kidney, and brain tissues, inhibiting lipid peroxidation and ensuring antioxidant protection [49]. Although MDA is a well-established marker used to investigate the oxidative damage of lipids, it should be undertaken that the formation of MDA, and the scale and rate of lipid oxidation in the tissues of living organisms, is influenced by a number of endo-and exogeneous factors, such as availability of substrates, age, and body weight [50].…”