Browsing by Author "Valladares, Miriela Betancourt"

Now showing 1 - 3 of 3
  • Thumbnail Image
    ItemOpen Access
    Calcium and s100a1 Protein Balance in the brain– Heart axis in Diabetic Male Wistar Rats.
    (2020) Keneth Iceland, Kasozi,; Nakimbugwe, Dorothy; Ninsiima, Herbert Izo; Kasolo, Josephine; Matama, Kevin; Safiriyu, Abass Alao; Owembabazi, Elna; Ssempijja, Fred; Okpanachi, Alfred Omachonu; Valladares, Miriela Betancourt
    Calcium deregulation in diabetes mellitus (DM) is central to the brain–heart axis pathology. This has led to the use of medical plants in complementary medicine such as Amaranthus hypochondriacus (GA). The objective of the study was to establish the effects of grain amaranth feed supplementation on calcium, s100al
  • Thumbnail Image
    ItemOpen Access
    Calcium and s100a1 Protein Balance in the brain– Heart axis in Diabetic Male Wistar Rats.
    (Kabale University, 2021) Keneth Iceland, Kasozi; Nakimbugwe, Dorothy; Ninsiima, Herbert Izo; Kasolo, Josephine; Matama, Kevin; Safiriyu, Abass Alao; Owembabazi, Elna; Ssempijja, Fred; Okpanachi, Alfred Omachonu; Valladares, Miriela Betancourt
    Objectives: Calcium deregulation in diabetes mellitus (DM) is central to the brain–heart axis pathology. This has led to the use of medical plants in complementary medicine such as Amaranthus hypochondriacus (GA). The objective of the study was to establish the effects of grain amaranth feed supplementation on calcium, s100al protein and antioxidant levels on the brain–heart axis in diabetic male Wistar rats. Methods: The study involved six groups (n=5) with DM being induced in 20 rats. To the diabetic rats, Group I received mixtard®, Group II was positive control, Groups III and IV received GA feed supplementation at 25 and 50%. In the nondiabetic rats (n=10), Group V received 50% grain amaranth while Group VI was the negative control. The brain and heart tissues were harvested after five weeks and processed using standard methods. Results: Grain amaranth feed supplementation led to improved calcium levels in DM as compared to the positive control. This also led to increased s100a1, antioxidant levels in the brain–heart axis during DM. This then protected the tissues against oxidative damage, thus preserving tissue function and structure. Conclusions: Grain amaranth’s actions on calcium signaling subsequently affected s100a1 protein levels, leading to improved tissue function in diabetes. Keywords: Calcium, T2DM, Ethnomedicine, Grain Amaranth.
  • Thumbnail Image
    ItemOpen Access
    Grain Amaranth Is Associated with Improved Hepatic and Renal Calcium Metabolism in Type 2 Diabetes Mellitus of Male Wistar Rats
    (Kabale University, 2018) Keneth Iceland, Kasozi; Namubiru, Sarah; Safiriyu, Abass Alao; Ninsiima, Herbert Izo; Nakimbugwe, Dorothy; Namayanja, Monica; Valladares, Miriela Betancourt
    Dysregulation of calcium signaling is a hallmark of diabetes mellitus (DM) and grain amaranth (AG) has antidiabetic properties. Information on the mechanism of action of AG on blood, renal, and hepatic tissues is sparse, although it continues to be an important alternative medicinal plant in several developing countries. The objective of the study was to determine key changes in calcium levels and s100a1 protein levels and antioxidant and histopathologic changes in blood, renal, and hepatic tissues of male diabetic Wistar rats. Materials and Methods. This was an experimental study in which 30 male Wistar rats were kept for 5 weeks (6 groups, N =5). Groups 1-IV had T2DM induced using Nicotinamide and Streptozotocin: Group I, Mixtard ; group II, positive control; group III, 25% AG; group IV, 50% AG. Furthermore, group V consisted of normal rats given 50% GA and group VI was negative control. Blood, renal, and hepatic tissues were collected and analyzed for calcium, s100a1 protein levels, and antioxidant and histopathological changes. Results andDiscussion. Inblood, renal, andhepatic tissue, calciumand s100a1 levelswere low during T2DMand these increased following AG supplementation.This was important for improved metabolic processes, thus leading to the lowmalondialdehyde (MDA) and glutathione peroxidase (GPx) activity in the tissues. Efficient antioxidant status was important for improved calciumsignaling mechanisms, thus leading to improved tissue function and protection demonstrating the importance of AG as an alternativemedicinal source through the calciumsignaling pathway. Conclusion. Grain amaranth exerts its antidiabetic properties through improved calcium homeostasis in blood, kidney, and liver.