scholarly journals Quercetin-Rich Guava (Psidium guajava) Juice in Combination with Trehalose Reduces Autophagy, Apoptosis and Pyroptosis Formation in the Kidney and Pancreas of Type II Diabetic Rats

Molecules ◽  
2016 ◽  
Vol 21 (3) ◽  
pp. 334 ◽  
Author(s):  
Chia-Fa Lin ◽  
Yen-Ting Kuo ◽  
Tsung-Ying Chen ◽  
Chiang-Ting Chien
QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
S F Ewida ◽  
A M H Shabaan ◽  
H F Eldomiaty ◽  
G S Y Hanna ◽  
S E Hassabelnabi ◽  
...  

Abstract Background Cardiovascular disease is the most life-threatening diabetic complication. Type II diabetes may lead to damage of the heart muscle. Sodium glucose cotransporter 2 (SGL2) inhibitors are a new class of diabetic medications indicated only for the treatment of type II diabetes. Aim This investigation was assigned to compare the effect of metformin and SGL2 inhibitors (dapaglifilizone) in type II diabetic rats. Design and methods: Eighty rats divided into four groups were used: non diabetic; diabetic; diabetic metformin -treated; diabetic dapagliflizoline- treated. At the end, arterial blood pressure and cardiac performance (cardiac contractility and heart rate) were assessed. Serum glucose, glycosylated hemoglobin (HbA1c), insulin, lipid profile, total antioxidant capacity, malondialdehyde, tumor necrosis factor α were measured. HOMA-IR index was calculated. DNA changes were assessed from hearts and aortea. Aortic endothelial changes recorded using H&E and masson trichome techniques. Results Glycemic index, lipid profile, oxidative stress and inflammatory parameters were significantly improved in both metformin and dapagliflizoline treated groups with also significant improvement in blood pressure, Cardiac performance and reduction in collagen deposition in aortic tissue and DNA fragmentation. Dapagliflizoline treatment results were significantly improved in all parameters compared to metformin treatment. Conclusion SGL2 inhibitors (dapaglifilizone) successfully restored glycemic state, cardiac performance, DNA and endothelial changes in type II diabetic rats compared to metformin.


2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Chang Xu ◽  
Xin Li ◽  
Debin Zeng ◽  
Ying Liu ◽  
Yuhang Gao ◽  
...  

Type 2 diabetes mellitus (T2DM) has become a major disease threatening human health worldwide. At present, the treatment of T2DM cannot cure diabetes and is prone to many side effects. Psidium guajava L. leaves have been reported to possess hypoglycemic activity, and they have been widely used in diabetes treatment in the folk. However, the antidiabetic mechanism has not been clearly explained. Also, the change in amino acid profile can reflect a metabolic disorder and provide insights into system-wide changes in response to physiological challenges or disease processes. The study found that P. guajava L. leaves can decrease fasting blood glucose and lipid levels in type 2 diabetic rats induced by streptozotocin. Through the analysis of amino acid profiling following 20 days of gavage administration, the concentration data were modeled by principal component analysis and orthogonal partial least squares discriminant analysis to find the different metabolites and related metabolic pathways (including cysteine and methionine metabolism, valine, leucine, and isoleucine biosynthesis, phenylalanine, tyrosine, and tryptophan biosynthesis) for the explanation of the hypoglycemic mechanism of P. guajava L., which provides an experimental and theoretical basis for diabetes prediction and for the development of new drugs for the treatment of diabetes.


2020 ◽  
Vol 102 ◽  
pp. 105582 ◽  
Author(s):  
Haihong Chen ◽  
Qixing Nie ◽  
Jielun Hu ◽  
Xiaojun Huang ◽  
Wenqi Huang ◽  
...  

2004 ◽  
Vol 82 (10) ◽  
pp. 888-894 ◽  
Author(s):  
Tod A Clark ◽  
Andrea L Edel ◽  
Clayton E Heyliger ◽  
Grant N Pierce

A novel black tea decoction containing vanadate has successfully replaced insulin in a rat model of insulin-dependent diabetes but is untested in non-insulin-dependent diabetic animals. A tea-vanadate decoction (TV) containing 30 or 40 mg sodium orthovanadate was administered by oral gavage to two groups of Zucker diabetic fatty rats and a conventional water vehicle containing 30 or 40 mg of sodium orthovanadate to two others. In the latter group receiving the 30-mg dose, vanadate induced diarrhea in 50% of the rats and death in 10%. In contrast, TV-treated rats had no incidence of diarrhea and no deaths. Symptoms were more severe in both groups with higher vanadate doses, so these were discontinued. After ~16 weeks, the level of vanadium in plasma and tissue extracts was negligible in a further group of untreated rats but highly elevated after vanadate treatment. Vanadium levels were not significantly different between the TV-treated diabetic rats and the diabetic rats given vanadate in a water vehicle. Over the 115 days of the study, blood glucose levels increased from ~17 to 25 mmol/L in untreated diabetic rats. This was effectively lowered (to <10 mmol/L) by TV treatment. Fasting blood glucose levels were 5, 7, and 20 mmol/L in control (nondiabetic, untreated), TV-treated and untreated diabetic rats, respectively. Rats required treatment with TV for only ~50% of the days in the study. Increase in body mass during the study was significantly lower in untreated diabetic rats (despite higher food intake) than the other groups. Body mass gain and food intake were normal in TV-treated rats. Water intake was 28 mL/rat daily in control rats, 130 mL/rat daily in untreated diabetic rats, and 52 mL/rat daily in TV-treated diabetic rats. Plasma creatinine and aspartate aminotransferase levels were significantly depressed in untreated diabetic rats, and TV treatment normalized this. Our results demonstrate that a novel oral therapy containing black tea and vanadate possesses a striking capacity to regulate glucose and attenuates complications in a rat model of type II diabetes. Key words: diabetes mellitus, tea, glycemia, type II diabetes.


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