scholarly journals Morphological changes and hypoglycemic effects of Annona muricata linn. (annonaceae) leaf aqueous extract on pancreatic β-cells of streptozotocin-treated diabetic rats

Author(s):  
SO Adewole ◽  
EA Caxton-Martins
Author(s):  
Anthoneth Ndidi Ezejiofor ◽  
Chinna Nneka Orish ◽  
Orish Ebere Orisakwe

AbstractConsidering the antihyperglycemic and antioxidant activities of herbs, this study has evaluated the morphological changes, hypoglycemic effect, and comparative ameliorating effects ofThirty adult male albino rats that were divided into six groups of five weight-matched animals each were used in the study. Groups 1 and 2 served as controls, whereas groups 3–6 were alloxan-induced diabetic groups treated with different doses of the extract (375, 750, and 1125 mg/kgThe phytoconstituents ofleaves possess both antidiabetic and tissue protective properties on pancreases of investigated rats.


2020 ◽  
Vol 29 (4) ◽  
pp. 847-854 ◽  
Author(s):  
Ebrahim Esfandiari ◽  
Aliasghar Dorali ◽  
Mostafa Ghanadian ◽  
Bahman Rashidi ◽  
Fatemeh Sadat Mostafavi

Author(s):  
Morad Hebi ◽  
Mohamed Eddouks

Introduction: Argania Spinosa L. (Sapotaceae) is an endemic species from south-western Morocco. This plant has many traditional uses including its use in the treatment of diabetes. Objective: The objective of the study was to evaluate the antidiabetic activity of Argania Spinosa Leaf Aqueous Extract (A.S.L.A.E). Methods: The antidiabetic effect of A.S.L.A.E was evaluated in both normal and streptozotocin (STZ)-induced diabetic rats treated at a dose of 20 mg/kg body weight for 15 days. The histopathological changes in the liver were evaluated. In addition, the antioxidant activity of this extract was also studied. Results: Single oral administration of A.S.L.A.E (20 mg/kg) showed no significant change in blood glucose levels in both normal and STZ induced diabetic rats after 6 hours of administration. Furthermore, in normal rats, repeated oral administration of A.S.L.A.E reduced blood glucose levels. Moreover, blood glucose levels decreased in STZ diabetic rats after fifteen days of treatment. According to the oral glucose tolerance test, the A.S.L.A.E (20 mg/kg) was shown to prevent significantly the increase in blood glucose levels in normal treated rats. Moreover, A.S.L.A.E showed antioxidant activity. Conclusion: The results show that Argania spinosa leaf aqueous extract possesses significant antihyperglycemic activity.


2017 ◽  
Vol 5 (1) ◽  
pp. 17-21
Author(s):  
Seyed Mehrdad Kassaee ◽  
Mohammad Taghi Goodarzi ◽  
Ebrahim Abbasi Oshaghi

Background: Herbal medicine is used in all parts of the world mainly for prevention and treatment of various disorders due to better cultural suitability, lower cost and less side effects. Objectives: The aim of this study was to determine the hypoglycemic and kidney-protective effects of the aqueous extract of Trigonella foenum and Cinnamon on diabetic rats. Methods: In this experimental study, rats were randomly divided into 6 groups as follows: Group 1: control group in which animals received chow diet, group 2: diabetic rats, group 3: diabetic rat + 2% T. foenum extract (w/w), group 4: diabetic rat + 8% of Trigonella foenum extract (w/w), group 5: diabetic rat + 2% Cinnamon extract (w/w) and group 6: diabetic rat + 8% of Cinnamon extract (w/w). Aqueous extract of T. foenum leaves and Cinnamon were administered to diabetic rats for 4 weeks. The malondialdehyde (MDA) level and total antioxidant capacity were also measured in kidney of the animals. In addition, morphological changes of the kidney were also analyzed by the light microscope. Results: Trigonella foenum and Cinnamon extract in diabetic animals significantly reduced MDA levels and restored antioxidant capacity (P<.05). T. foenum and Cinnamon also normalized plasma urea and creatinine concentration in diabetic rats (P<.05). Administration of T. foenum and Cinnamon extract especially at the dose of 8 mg/kg normalized histopatholgical changes of kidney in diabetic animal. Conclusions: The findings of this experiment showed that T. foenum extract and Cinnamon restored antioxidant capacity and structural changes of kidney.


Metabolism ◽  
1993 ◽  
Vol 42 (11) ◽  
pp. 1424-1428 ◽  
Author(s):  
Kazuo Tsuji ◽  
Tomohiko Taminato ◽  
Hitoshi Ishida ◽  
Yoshimasa Okamoto ◽  
Yoshiyuki Tsuura ◽  
...  

Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1448
Author(s):  
Wen-Chang Chang ◽  
James Swi-Bea Wu ◽  
Szu-Chuan Shen

Methylglyoxal (MG) is the primary precursor of advanced glycation end products involved in the pathogenesis of inflammation and diabetes. A previous study in our laboratory found anti-inflammatory and anti-hyperglycemic effects of the polyphenol vescalagin (VES) in rats with MG-induced carbohydrate metabolic disorder. The present study further investigated the occurrence of inflammation in pancreatic β-cells in MG-induced diabetic rats and the mechanism by which VES prevents it. The results showed that VES downregulates the protein expression levels of advanced glycation end product receptors and CCAAT/enhancer binding protein-β and upregulates the protein expression levels of pancreatic duodenal homeobox-1, nuclear factor erythroid 2-related factor 2 and glyoxalase I from the pancreatic cells. The results also revealed that VES elevates glutathione and antioxidant enzyme contents and then downregulates c-Jun N-terminal kinase and p38 mitogen-activated protein kinases pathways to protect pancreatic β-cells in MG-administered rats.


2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Nelli Giribabu ◽  
Nelli Srinivasarao ◽  
Somesula Swapna Rekha ◽  
Sekaran Muniandy ◽  
Naguib Salleh

Diabetes mellitus has been reported to affect functions of the hippocampus. We hypothesized thatCentella asiatica, a herb traditionally being used to improve memory, prevents diabetes-related hippocampal dysfunction. Therefore, the aim of this study was to investigate the protective role ofC. asiaticaon the hippocampus in diabetes.Methods. Streptozotocin- (STZ-) induced adult male diabetic rats received 100 and 200 mg/kg/day body weight (b.w)C. asiaticaleaf aqueous extract for four consecutive weeks. Following sacrifice, hippocampus was removed and hippocampal tissue homogenates were analyzed for Na+/K+-, Ca2+- and Mg2+-ATPases activity levels. Levels of the markers of inflammation (tumor necrosis factor, TNF-α; interleukin, IL-6; and interleukin, IL-1β) and oxidative stress (lipid peroxidation product: LPO, superoxide dismutase: SOD, catalase: CAT, and glutathione peroxidase: GPx) were determined. The hippocampal sections were visualized for histopathological changes.Results. Administration ofC. asiaticaleaf aqueous extract to diabetic rats maintained near normal ATPases activity levels and prevents the increase in the levels of inflammatory and oxidative stress markers in the hippocampus. Lesser signs of histopathological changes were observed in the hippocampus ofC. asiaticaleaf aqueous extract treated diabetic rats.Conclusions.C. asiaticaleaf protects the hippocampus against diabetes-induced dysfunction which could help to preserve memory in this condition.


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