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Journal of Pharmacognosy & Natural Products

ISSN: 2472-0992

Open Access

Articles in press and Articles in process

    Research Article Pages: 1 - 7

    In Vivo Antidiabetic Activity of Methanolic Extracts of Calpurnia aurea and Bidens macroptera in Streptozotocin Induced Diabetic Mice

    Getachew Moges* and Yohannes Mengesha

    DOI: 10.37421/2472-0992.2022.8.200

    Background: Diabetes mellitus is one of the most common chronic health problems globally. There is no satisfactory effective therapy to cure diabetes mellitus. Currently available drugs for managing diabetes produce some serious side effects and have decreased efficacy over time. Calpurnia aurea and Bidens macroptera have been used traditionally for the treatment of diabetes mellitus and other ailments in Ethiopia.

    Objective: To investigate the antidiabetic activities of Bidens macroptera and Calpurnia aurea in streptozotocin induced diabetic mice.

    Methods: Qualitative phytochemical screening tests were conducted to identify the chemical constituents of the plants. Healthy swiss albino mice of either sex (25 g-30 g) with no prior drug treatment were used for the present study. An acute toxicity study was carried out according to the 2008 organization for economic cooperation and development guideline 425. The effects of extracts of the plants on fasting blood glucose level and body weight of diabetic mice were evaluated using repeated dose antidiabetic activity test model. Fasting blood samples were collected from the control and test groups weekly to monitor blood glucose levels. Changes in body weight were also recorded weekly.

    Results: Phytochemical screening of both plants indicated the presence of flavonoids, alkaloids, saponins, tannins, and phenolic compounds that might contribute to the antidiabetic activity. The medium Lethal Doses (LD50) of both extracts were higher than 2 g/kg body weight. The extracts also reduced the elevated blood glucose levels and improved the body weight loss of streptozotocin induced diabetic mice.

    Conclusion: The methanolic extracts of Bidens macroptera and Calpurnia aurea revealed blood glucose lowering activity and improved body weight loss of diabetic mice over the 14 days treatment period.

      Review Article Pages: 1 - 10

      Phytochemical Analysis and Antimicrobial Screening Studies of Calotropis gigantea Leaves

      Dibikshya Bhandari*, Mohan Amatya and Sabyata Gautam

      DOI: 10.37421/2472-0992.2022.8.205

      Introduction: Calotropis gigantea (Apocynaceae) is a wild herb that can be used to cure a variety of ailments, including fever, indigestion, colds, coughs, asthma, and scabies.

      Methods: The powdered C. gigantea leaves was examined for ash value, extractive value, organoleptic properties, and microscopy. Also, the extract of the plant in several solvents (petroleum ether, diethyl ether, chloroform, ethyl acetate, ethanol, and water) was successively calculated. Each extract was screened for phytochemicals and evaluated for total phenolic content and total flavonoid content. The antioxidant activity of aqueous and alcohol extracts was assessed, along with the antibacterial properties of each extract.

      Results: Alkaloids, steroids, saponins, terpenoids, glycosides, reducing sugars, non-reducing sugars, proteins, alkaloids, steroids, saponins, terpenoids, glycosides, reducing sugars, non-reducing sugars, proteins, tannins, amino acids, phenols, coumarin, and quinones were found in preliminary phytochemical analyses of extracts. The aqueous extract had a greater total phenolic concentration and total flavonoids content. The DPPH scavenging experiment showed dosage dependent result in both the aqueous and alcohol extracts. The alcoholic and aqueous extracts of the plant were found to be effective against E. coli in a dose dependent manner during antibacterial screening. On TLC analysis, ethyl acetate, alcohol, and aqueous extracts displayed distinct visible tailing in the TLC plates, spots of other extracts could only be seen under a UV light.

      Conclusion: The recent study in the extracts of the C. gigantea leaves indicated the presence of antioxidants with phenolic and flavonoid compounds. Therefore, this could be potential lead molecule for antibiotic.

      Research Article Pages: 1 - 7

      Standardization and Biological activity of Calotropis gigantea

      Vijay Danapur*, Gopinath, Shravani, Annapurna G, Sinchana and Goutami Hadimani

      DOI: 10.37421/2472-0992.2023.9.247

      Calotropis gigantea (L.) is an important plant drug of Ayurveda from the ancient times of medicinal system? The Sanskrit name of Calotropis gigantea is Arka, it is also commonly called as crown flower or gaint milk weed. It is antifungal, anti-diabetic, anti-carcinogenic, expectorant and anti-inflammatory drug. The Calotropis (L.) contains anti-diabetic properties that can be identified as having a good influence on diabetes. It has specific properties that are responsible for stimulation of insulin production. The leaves and flower of Arka have certain anti-diabetic agents that improve the sensitivity of insulin and trigger secretion of insulin. The present study is on the determination of pharmacology, preliminary phyto-chemical analysis, fluorescence studies of leaves of Calotropis gigantean (L.). It also comprises the biological activities like antioxidant, anti-diabetic and anti-bacterial activities.

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