@article {66, title = {Novel Phytocompounds from Vernonia amygdalina with Antimalarial Potentials}, journal = {Pharmacognosy Research}, volume = {12}, year = {2020}, month = {February 2020}, pages = {53-59}, type = {Original Article}, chapter = {53}, abstract = {

Background: Malaria, one of the diseases predominant in the African continent, has been reported to be treated with plants and also some in vitro and in vivo tests have supported this. Vernonia amygdalina belonging to the family of Asteraceae is one of the plants widely used in Nigeria and studied for treatment of malaria and some scientific researchers have validated this claim. Objectives: In the present study, we aimed at isolation of possible compounds from the methanolic stem-bark of V. amygdalina, elucidation and characterization of the isolated compounds, and carry out antimalarial evaluations of the isolated compounds. Materials and Methods: Isolation of compounds was done using column chromatography technique, elucidation and characterization were done based on infrared, Mass, 1H, and 13C nuclear magnetic resonance spectra. The in vitro antimalarial activity was carried out on the ring stage of the malaria parasite cycle of chloroquine-sensitive (3D7) and chloroquine-resistant (Dd2) strains. Results: Five novel compounds were isolated; 4α-Hydroxy-n-pentadecanoic acid (CC7), 11α- Hydroxyurs-5,12-dien- 28-oic acid-3α, 25-olide (CC10), 1-Hen eicosanol-O-β-D-glucopyranoside (CC19), 10-Geranilanyl-O-β-D-xyloside (AC2A), 6β,10β,14β-Trimethyl heptadecan-15α-olyl-15-O-β-D-glucopyrano syl-1,5β-olide (CC14), and one new compound; Glucuronolactone (CC3). The compounds CC10, CC19, AC2A, CC14, and CC3 recorded schizont inhibition at different percentages. Compounds CC19, AC2A, and CC14 recorded half-maximal inhibitory concentration (IC50) values of 10.55 μg/ml, 12.56 μg/ml, and 11.68 μg/ml, respectively. Conclusion: The IC50 values obtained are much higher than that of chloroquine, which is 0.02 μg/ml. These compounds showed antimalarial activity at different levels. The presence and effect of these compounds validate the use of this plant for the treatment of malaria in the traditional medicinal practice of Nigeria.

}, keywords = {Antimalarial, Half-maximal inhibitory concentration, Isolation, Phytocompounds, Vernonia amygdalina}, doi = {10.4103/pr.pr_81_19}, author = {InnocentMary IfedibaluChukwu Ejiofor and Aparoop Das and Showkat R Mir and Mohammed Ali and Kamaruz Zaman} } @article {464, title = {Study of Colouring Effect of Herbal Hair Formulations on Graying Hair}, journal = {Pharmacognosy Research}, volume = {7}, year = {2015}, month = {June,2015}, pages = {259-262}, type = {Original Article}, chapter = {259}, abstract = {

Objectives: To screen the hair colouring properties of hair colorants/ herbal hair colouring formulations. Materials and Methods: The dried aqueous herbal extracts of Gudhal leaves (Hibiscus rosa-sinensis), Jatamansi rhizome (Nardostachys jatamansi), Kuth roots (Saussurea lappa), Kattha (Acacia catechu), Amla dried fruit (Embelica officinalis), were prepared. Coffee powder (Coffea arabica)and Henna powder (Lowsonia inermis) were taken in the form of powder ($\#$ 40). Fourteen herbal hair colorants were prepared from these dried aqueous herbal extracts and powders. Activities of hair colorants were observed on sheep wool fibers. On the basis of the above observation six hair colorants were selected. These six formulations were taken for trials on human beings. Observation: The formulation coded HD-3 gave maximum colouring effect on sheep wool fibers as well as on human beings and percentage of acceptance among the volunteers were in the following order: HD- 3 \> HD- 4 \> HD-1 \> HD-13 \> HD- 14 \> HD-11. Results and Discussion: The remarkable results were obtained from five herbal hair colorants, viz., HD-1, HD- 3, HD- 4, HD-13 and HD-14 on sheep wool fibers and human beings. Formulation HD-3, having gudhal, jatamansi, kuth, kattha, amla, coffee and henna, was the maximum accepted formulation and suggested that these herbs in combination acts synergistically in hair colouring action. It also concluded that jatamansi, present in different hair colorants, was responsible to provide maximum blackening on hair

}, keywords = {Colorant formulations, Human hair, Natural hair, Sheep wool fibers.}, doi = {10.4103/0974-8490.157976}, author = {Vijender Singh and Mohammed Ali and Sukirti Upadhyay} }