Anti-diabetic effect of betulinic acid on streptozotocin-nicotinamide induced diabetic male mouse model

Birgani, Golshan Arzani; Ahangarpour, Akram; Khorsandi, Layasadat; Moghaddam, Hadi Fathi

doi:10.1590/s2175-97902018000217171

Cited by 46 publications

(30 citation statements)

References 30 publications

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“…Compound 8 has been reported to stimulate glucose uptake in 3T3-L1 adipocytes through the PI3K pathway. Additionally, 8 has also been reported to lower blood glucose and improve insulin resistance and diabetes which corroborate with our findings [ 13 , 33 , 34 ]. 7 has been reported to up-regulate the expression of GLUT4, which increases the glucose-uptake activity in adipose and muscle cell lines [ 14 , 35 ].…”

Section: Discussionsupporting

confidence: 92%

Glucose-Uptake Activity and Cytotoxicity of Diterpenes and Triterpenes Isolated from Lamiaceae Plant Species

et al. 2020

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The prevalence of diabetes mellitus (DM), considered one of the most common metabolic disorders, has dramatically increased and resulted in higher rates of morbidity and mortality around the world in the past decade. It is well known that insulin resistance in target tissues and a deficiency in insulin secretion from pancreatic β-cells are the main characteristics of type 2 diabetes. The aim of this study was the bio-evaluation of compounds isolated from three selected plant species: namely, Salvia africana-lutea, Leonotis ocymifolia, and Plectranthus madagascariensis, for their glucose-uptake ability. Methanolic extracts were produced from the aerial parts of each plant. Compounds were identified using different spectroscopic techniques. The glucose-uptake ability of each compound was then evaluated in mammalian cells using 2-deoxyglucose-6-phosphate. The cytotoxicity of each compound was established via the MTT assay. Chromatographic purification of the three plant species yielded sixteen pure terpenoids. Compounds 1 (p = 0.0031), 8 (p = 0.0053), and 6 (p = 0.0086) showed a marked increase in glucose uptake, respectively. Additionally, 1, 4, and 6 exhibited cytotoxicity toward mammalian tissue with a decrease in cell viability of ~70%, ~68%, and ~67%, respectively. The results suggested that several compounds demonstrated a marked increase in glucose uptake, while two of the compounds exhibited signs of cytotoxicity. It may, therefore, be suggested that these compounds be considered as potential candidates for novel plant-derived alternative therapies in the treatment of type 2 diabetes.

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Section: Discussionsupporting

confidence: 92%

Glucose-Uptake Activity and Cytotoxicity of Diterpenes and Triterpenes Isolated from Lamiaceae Plant Species

et al. 2020

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“…Additionally, 8 has also been reported to lower blood glucose and improve insulin resistance and diabetes which corroborate with our findings [13,34,35]. 7 has been reported to up-regulate the expression of GLUT4, which increases the glucose uptake activity in adipose and muscle cell lines [14,36].…”

Section: Discussionsupporting

confidence: 91%

Glucose Uptake Activity and Cytotoxicity of Abietane Diterpenes and Triterpenes Isolated from Lamiaceae Plant Species

Etsassala¹,

Ndjoubi²,

Mbira³

et al. 2020

Preprint

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The prevalence of diabetes mellitus (DM), considered one of the most common metabolic disorders, has dramatically increased and resulted in higher rate of morbidity and mortality around the world, in the past decade. It is well known that insulin resistance in target tissues and a deficiency in insulin secretion from pancreatic β-cells are the main characteristic of type 2 diabetes. The aim of this study was the bio-evaluation of compounds isolated from three selected plant species; namely, Salvia africana-lutea, Leonotis ocymifolia and Plectranthus madagascariensis, for their glucose uptake ability. Methanolic extracts were produced from the arterial part of each plant. Compounds were identified using different spectroscopic techniques. The glucose uptake ability of each compound was then evaluated in mammalian cells using 2-deoxyglucose-6-phosphate. The cytotoxicity of each compound was established via the MTT assay. Chromatographic purification of the three plant species yielded fifteen pure terpenoids. Compounds 1 (p = 0.0031), 8 (p = 0.0053), and 6 (p = 0.0086), showed a marked increase in glucose uptake, with p values of p=0.0031, p=0.0053 and p=0.0086, respectively. Additionally, 1, 4 and 6 exhibited cytotoxicity toward mammalian tissue with a decrease in cell viability of ~70%, ~68% and ~67%, respectively. The results suggested that several compounds demonstrated a marked increase in glucose uptake while two of the compounds exhibited signs of cytotoxicity. It may, therefore, be suggested that these compounds be considered as potential candidates for novel plant-derived alternative therapies in the treatment of type 2 diabetes.

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“…NA injection before STZ in this DM-induced model, on the other hand, partially counteracts the destructive effect of STZ on β-cells, and it leads to the loss of the early phase of glucose stimulation of insulin secretion which is a feature of T2DM [18][19][20]. It was also proven by many investigators that in NA/STZinduced DM, there are both impairment in insulin secretion and insulin resistance, which is a characteristic feature of T2DM [21][22][23].…”

Section: Introductionmentioning

confidence: 80%

Antidiabetic Potency, Antioxidant Effects, and Mode of Actions ofCitrus reticulataFruit Peel Hydroethanolic Extract, Hesperidin, and Quercetin in Nicotinamide/Streptozotocin-Induced Wistar Diabetic Rats

Ali

Abdel‐Gabbar

Abdel-Twab

et al. 2020

Oxidative Medicine and Cellular Longevity

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This study is aimed at assessing the antihyperglycemic, antihyperlipidemic, and antioxidant effects of Citrus reticulata (C. reticulata) fruit peel hydroethanolic extract and two flavonoids, hesperidin and quercetin, in nicotinamide (NA)/streptozotocin- (STZ-) induced type 2 diabetic rats. In addition, GC-MS and HPLC-MS analyses of the extract were performed and the results indicated the presence of multiple flavonoids including hesperidin, quercetin, naringin, and polymethoxylated flavones (nobiletin and tangeretin). To achieve the aim of the study, diabetic rats with NA/STZ-induced T2DM were orally treated with C. reticulata fruit peel hydroethanolic extract, hesperidin, and quercetin at a dose of 100 mg/kg b.w./day for four weeks. The treatments with C. reticulata fruit peel extract, hesperidin, and quercetin significantly ameliorated the impaired oral glucose tolerance; the elevated serum fructosamine level; the diminished serum insulin and C-peptide levels; the altered HOMA-IR, HOMA-IS, and HOMA-β cell function; the decreased liver glycogen content; the increased liver glucose-6-phosphatase and glycogen phosphorylase activities; the deleteriously affected serum lipid profile; the elevated serum AST and ALT activities; and the raised serum creatinine and urea levels in the diabetic rats. The treatments also produced remarkable improvement in the antioxidant defense system manifested by a decrease in the elevated liver lipid peroxidation and an increase in the lowered glutathione content and GPx, GST, and SOD activities. Furthermore, the three treatments enhanced the mRNA expression of GLUT-4 and the insulin receptor β-subunit, but only quercetin produced a significant increase in the expression of adiponectin in adipose tissue of diabetic rats. In conclusion, C. reticulata fruit peel hydroethanolic extract, hesperidin, and quercetin have potent antidiabetic effects which may be mediated through their insulinotropic effects and insulin-sensitizing actions. In addition, the alleviation of the antioxidant defense system by the extract, hesperidin, and naringin may have an important action to enhance the antidiabetic actions and to improve liver and kidney functions in NA/STZ-induced diabetic rats.

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Anti-diabetic effect of betulinic acid on streptozotocin-nicotinamide induced diabetic male mouse model

Cited by 46 publications

References 30 publications

Glucose-Uptake Activity and Cytotoxicity of Diterpenes and Triterpenes Isolated from Lamiaceae Plant Species

Glucose-Uptake Activity and Cytotoxicity of Diterpenes and Triterpenes Isolated from Lamiaceae Plant Species

Glucose Uptake Activity and Cytotoxicity of Abietane Diterpenes and Triterpenes Isolated from Lamiaceae Plant Species

Antidiabetic Potency, Antioxidant Effects, and Mode of Actions ofCitrus reticulataFruit Peel Hydroethanolic Extract, Hesperidin, and Quercetin in Nicotinamide/Streptozotocin-Induced Wistar Diabetic Rats

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