scholarly journals Antidiabetic activity of Cassia angustifolia Vahl. and Raphanus sativus Linn. leaf extracts

2020 ◽  
Vol 10 (2) ◽  
pp. 124-131 ◽  
Author(s):  
Deepti Kaushalkumar Jani ◽  
Sunita Goswami
2020 ◽  
Vol 10 (1) ◽  
pp. 68-74
Author(s):  
Sabrina Sanvee ◽  
Oudjaniyobi Simalou ◽  
Gneiny Whad Tchani ◽  
Hèzouwè Kagnou ◽  
Batomayena Bakoma ◽  
...  

Introduction: Bridelia ferruginea is a plant known for its antidiabetic properties. However, few studies on leaf extracts have induced anti-hyperglycemic activity on normal mice subjected to carbohydrate overload. The current study was designed to assess the effect of the leaf extracts’ fraction on fructose-induced diabetic mice. Methods: The in vitro ferric-reducing antioxidant power (FRAP) assay were carried out and the condensed tannins quantified. The vanillin-HCl method was used to characterize the condensed tannins. The antidiabetic effect on fructose-induced diabetic mice was evaluated for 28 days using a fructose-enriched fat diet approach. Results: The fraction confirmed the antioxidant activity with a reducing power of 800 μg/mL comparable to ascorbic acid at 200 μg/mL. The condensed tannins were estimated at 79.6 ± 3.4 mg catechin equivalent per gram of sample. Significant decreases in blood sugar levels of 6.25% at the 7th day, 11.04% at the 14th day, 12.61% at the 21th day, and 11.35% at the 28th day were obtained in mice treated with the extract dose of 200 mg/kg of body weight, compared to the positive control group. The decreases of 37.11% of triglycerides and 40.16% of total cholesterol were also obtained. Conclusion: The investigated fraction showed notable antidiabetic activity and might be a good candidate in the treatment of diabetes.


2020 ◽  
Vol 7 (2) ◽  
pp. 50-55
Author(s):  
Anitha T A ◽  
Pakutharivu T ◽  
Nirubama K ◽  
Akshaya V

The traditional herbal medicines are mainly obtained from plants are used in the management of Diabetes mellitus. The main objective of this work was to assess the presence of phytochemical compounds and to evaluate the in vitro antidiabetic activity of isopropanolic extracts of Pimenta racemosa leaves by studying their α-amylase inhibitory activity and glucose transport across yeast cells. Screening of phytochemicals showed positive results for alkaloids, steroids, cardiac glycosides, terpenoids, reducing sugars, anthraquinones, and results of in vitro α-amylase inhibitory studies demonstrated there was a dose-dependent increase in percentage inhibitory activity by the isopropanolic leaf extracts of Pimenta racemosa. At a concentration of 1 mg/ml, the extract showed a percentage inhibition 33.6 and for 5 mg/ml it was 91.2. The glucose uptake study was also studied through yeast cells by analyzing theamount of glucose remaining in the medium after a specific time intervals. It serves as an indicator for the capability of isopropanolic leaf extracts of Pimenta racemosa to transport the glucose into yeast cells. As a result, we found that the isopropanolic leaf extract of Pimenta racemosa have inhibitory activity against αamylase and also, which is efficient in glucose uptake. This therapeutic potentiality of Pimenta racemosa could be exploited in the treatment of Type 2 Diabetes mellitus. Further studies are also required to elucidate whether the plant have antidiabetic potential by in vivo for corroborating the traditional claim of the plant.


2020 ◽  
Vol 14 (3) ◽  
pp. 72-80
Author(s):  
Onuabuchi Nnenna Ani ◽  
Stanley Chidi Udedi ◽  
Benedette Azuka Anajekwu ◽  
Kingsley Kelechi Asogwa ◽  
Kenneth Udeh Ekwealor

Author(s):  
Abu Zaffar Shibly ◽  
Laila Arjumand Suborna ◽  
Juthi Adhikari ◽  
Md. Shariful Islam

Background: Diabetic mellitus is a multifactorial disorder associated with its devastating consequences has assumed epidemic proportion in Bangladesh.Methods: The study evaluates the anti-hyperglycemic activity of the aqueous extracts of C. tamala (CTLEt) leaves in blood glucose of albino rats. Type II diabetes mellitus was induced by injecting alloxan at the concentration of 100mg/kg body weight in male albino rats. The diabetic rats were administered orally with aqueous CTLEt at the amount of 1.0ml, 1.5ml and 2.0ml with lab diet and glibenclamide (5mg/kg of body weight). Then blood glucose levels were estimated in all groups after 2 hours, 4 hours, 6 hours, 12 hours and 18 hours of the treatment with CTLEt and a known antidiabetic drug glibenclamide.Results: A comparison was made between the action of CTLEt and glibenclamide. Blood glucose levels of the CTLEt on 18th hours of the study were 8.6 to 5.1mmol/L (1ml CTLEt with lab diet), 10.4 to 4.9mmol/L (1.5ml CTLEt with lab diet), 14.7 to 4.3mmol/L (2.0ml CTLEt with lab diet) in comparison of diabetic control (9.5 to 8.5, 8.7 to 7.8, 7.7 to 7.1mmol/L) and glibenclamide (13.9 to 6.5, 16.3 to 6.1, 9.5 to 5.1mmol/L). Among the sample level, the 2.0ml CTLEt showed a higher efficiency of hypoglycemic effect on alloxan induced diabetic rats.Conclusions: Till date, there is no specific experimental work in Bangladesh about the evolution of antidiabetic activity of C. tamala plant in animal model. Further studies should be undertaken to find out the molecular mechanism of the leaf powder of C. tamala medicinal plant.


PHARMACON ◽  
2019 ◽  
Vol 8 (4) ◽  
pp. 774
Author(s):  
Billy N. Nangoy ◽  
Edwin De Queljoe ◽  
Adithya Yudistira

ABSTRACTSesewanua leaves contain flavonoids which can be potentially as antidiabetic. Flavonoids reduce blood sugar levels by capturing free radicals that cause damage to pancreatic beta cells and inhibit pancreatic beta cell damage. The purpose of this study was to determine the effect of antidiabetic activity on the administration of Sesewanua (Clerodendron squamatum Vahl.) Leaf extracts in wistar white rats (Rattus norvegicus) induced by Aloxan. This type of research is a laboratory experiment using a completely randomized design. Test animals are grouped into 5 groups each consisting of 3 test animals. The negative control group (K-) was not treated, the positive control group (K +) was given metformin, groups 2, 3, and 4 were treated with different extract concentration of 200, 400, and 800 mg. Before the treatment was done the rats were examined the initial blood sugar level, then induced alloxan monohydrate 120 mg / kg BW intraperitonially (ip), and checked the blood sugar level on the 3rd day and continued with the administration of the leaf extracts of the animal every two days until the 14th day. The results showed that sesewanua leaf extracts with a concentration of 200, 400, and 800mg had a decreased activity in blood sugar levels from day 4 to day 14 with a decrease of 13.66 mg / dL in the concentration group 1, 43 mg / dL in the dose concentration 2, and 103 mg / dL in the concentration group 3. Keywords: Blood Glucose, Clerodendron squamatum Vahl., Flavonoids,  Rattus norvegicus ABSTRAKDaun sesewanua mengandung flavonoid yang dapat berpotensi sebagai antidiabetes. Flavonoid menurunkan kadar gula darah dengan cara menangkap radikal bebas penyebab kerusakan sel beta pankreas dan menghambat kerusakan sel beta pankreas. Tujuan penelitian ini adalah mengetahui efek aktivitas antidiabetes terhadap pemberian ekstrak Daun Sesewanua (Clerodendron squamatum Vahl.) pada Tikus Putih Galur Wistar (Rattus norvegicus) yang telah diinduksi Aloksan. Jenis penelitian ini adalah eksperimen laboratorium menggunakan rancangan acak lengkap. Hewan uji dikelompokan dalam 5 kelompok masing-masing terdiri dari 3 ekor hewan uji. Kelompok kontrol negatif (K-) tidak diberi perlakuan, kelompok kontrol positif (K+) diberikan metformin, Kelompok 2, 3, dan 4 diberi perlakuan dengan konsentras ekstrak yang berbeda-beda yaitu 200, 400, dan 800 mg. Sebelum perlakuan dilakukan tikus diperiksa kadar gula darah awal, kemudian diinduksi aloksan monohidrat 120 mg/kgBB secara intraperitonial (ip), dan diperiksa kadar gula darah pada hari ke-3 dan dilanjutkan dengan pemberian ekstrak daun sesewanua setiap dua hari sekali sampai hari ke-14. Hasil penelitian menunjukkan bahwa ekstrak daun sesewanua dengan konsentrasi 200, 400 , dan 800mg memiliki aktivitas penurunan kadar gula darah dari hari ke-4 sampai hari ke-14 dengan penurunan sebesar 13.66 mg/dL pada kelompok konsentrasi 1, 43 mg/dL pada kelompok konsentrasi 2, dan 103 mg/dL pada kelompok konsentrasi 3. Kata Kunci: Clerodendron squamatum Vahl., Flavonoid, Glukosa Darah, Rattus norvegicus


Author(s):  
Md. Dobirul Islam ◽  
Syeda Farida Akter ◽  
Md. Amirul Islam ◽  
Md. Salim Uddin

Aims: Presently the medicinal world is rapidly turning more on the therapeutic health benefits of natural product and medicinal plants in the management of major crucial disease and their complications. Medicinal plant, Stephania japonica has been studied for exploring antidiabetic potentiality as an alternative source of medicine against the global threat of Diabetes mellitus (DM). Methods: The extraction of S. japonica leaf was carried out by acetone and ethanol. Phytochemical screening and quantitative analysis of S. japonica leaf extracts were evaluated through chemically forming characterized color formation and calibration method respectively, by using standard reference substances (ascorbic acid, gallic acid, and quercetin) to assess the probable compounds present in the extract. Anti-diabetic potentiality of highest phytochemicals containing two extracts were investigated in in vitro as a ⍺-amylase inhibitors and in vivo through alloxan-induced Swiss albino diabetes mice model. Results: Alkaloids, carbohydrates, steroids, flavonoids, resins, saponins, tannins and coumarins were present in the leaf extracts. The estimated amount of total phenolics, flavonoids, flavonols and proanthrocyanidins contents of acetone and ethanol extract were 92.12±0.64 and 56.54±1.05 mg of gallic acid equivalent (GAE)/gm of dry extract, 66.02±1.42 and 46.17±0.54 mg of catechin equivalent (CAE)/gm of dry extract, 7.05±0.108 and 5.26±0.083 mg of quercetin equivalent (QUE)/gm of dry extract, 35.19±0.67 and 9.55±1.11 mg CAE/gm of dry extract, respectively. In 3, 5-dinitrosalicylic acid method, acetone and ethanol extract showed α-amylase inhibition of 51.02% and 46.62%, respectively at the concentration of 1000 µg/mL whereas in starch iodine color assay, acetone and ethanol extract showed inhibition of 57.32% and 52.12%, respectively at the concentration of 800 µg/mL. In contrast, both of the leaf extracts significantly (p<0.05 to p<0.001) improved the lipid profile parameters, blood glucose level and serum hepatic marker proteins in alloxan-induced diabetic mice. Conclusion: The present study strongly concluded that S. japonica leaf extracts process potent antidiabetic potentiality that might be significance for the management of diabetes and its complications.


Author(s):  
Anandhu K S ◽  
Manu Jose ◽  
Sweety Kuriakose ◽  
Jayalakshmi P M

Diabetes Mellitus is a metabolic disorder characterized by hypoglycemia, resulting from absolute or relative deficiency of insulin. Worldwide about 220million people affected. Low-cost herbal treatment is recommended due to their lesser side effect. The aim of the current study was to determine the antidiabetic activity of aqueous leaf extracts of Lagerstroemia speciosa (Lythraceae) and Aegle marmelos (Rutaceae) using alpha amylase inhibition assay and glucose diffusion inhibition assay. In alpha amylase inhibition assay, the leaf extracts of A.marmelos (at a concentration 100µg/ml) exhibited 54.68% of α amylase inhibitory activity with an IC 50 values 92.04µg/ml whereas the leaf extracts of L. speciosa (at a concentration of 100µg/ml) exhibited 60.36% of α amylase inhibitory activity with an IC50 value of 68.19µg/ml .However the mixture of plant extracts (at a concentration of 100µg/ml) exhibited 94.87% inhibition with an IC50 value of 13.145µg/ml. Both plant extracts showed appreciable α amylase inhibitory effects, but the mixture showed more inhibitory effects than the individual plant extracts. In glucose diffusion inhibition assay, the aqueous extract of A. marmelos leaves exhibited maximum glucose diffusion inhibition (76.886%) at 150 minutes as well as L. Speciosa leaf extract showed the maximum inhibition of 79.5357% at the same time interval. The mixture of plant extracts exhibited 87.4274% inhibition at 150 minutes which produces more effects than the two plants.


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