@article {1071, title = {Antihypertensive and Cardioprotective Property of Mimosa pudica Using Zebra Fish}, journal = {Pharmacognosy Research}, volume = {14}, year = {2022}, month = {July 2022}, pages = {333-337}, type = {Original Article}, chapter = {333}, abstract = {

Background: Increase in blood pressure is generally termed as hypertension which is one of the common causes of cardiovascular diseases. Despite the several treatment methods, hypertension stands to be the major concern in developing countries. Angiotensin converting enzyme is one of the key contributors in regulating blood pressure where improper activation of angiotensisn leads to hypertension. Mimosa pudica plant has been reported to exhibit several therapeutic properties and thus the current study was focused on evaluating antihypertensive property of phytochemicals found in the Mimosa pudica extract. Materials and Methods: Methanol extract of Mimosa pudica was examined for presence of potential phytochemicals by GC-MS and molecular docking studies were carried out using Autodock 4.2. Results: 07 phytochemicals were identified in the methanol extract of Mimosa pudica. Further molecular docking studies against angiotensin converting enzyme (ACE) was carried out and among the list of test compounds 9,12-octadecadienoic acid showed least binding energy with -6.6 kJ. Conclusion: Compounds selected as phytochemicals of Mimosa pudica from methanol extract of Mimosa pudica, specially 9,12-octadecadienoic acid considered for further evaluation of antihypertensive and cardioprotective activity.

}, keywords = {Angiotensin converting enzyme, Antihypertensive activity, Antihypertensive and cardioprotective activity, Methanol extract, Mimosa pudica}, doi = {10.5530/pres.14.3.49}, author = {Santhosh Kondajji Hanumanthappa and Joy Hoskeri Harris and Nivedita Pujari Sudhakar and Priyanka Ashoka and Manjunatha Hanumanthappa} } @article {157, title = {Kaempferol {\textendash} A Dietary Flavonoid Isolated from Blepharis integrifolia}, journal = {Pharmacognosy Research}, volume = {12}, year = {2020}, month = {August 2020}, pages = {250-259}, type = {Original Article}, chapter = {250}, abstract = {

Background: Blepharis integrifolia is in the preparation of traditional formulation for the treatment of various diseases, including digestive disorders such as flatulence and dysentery. Although a very few studies have assessed the pharmacological properties, nothing is known about the phytochemicals present and the effect of extracts on its pharmacological activities. Objectives: Therefore, the objectives of the present study were to assess the role of methanol extract of B. integrifolia (MBI) for its anti-inflammatory, antioxidant, and antibacterial activities. Materials and Methods: The phytochemicals present in the extract were evaluated using high-resolution liquid chromatography and mass spectrometry (HR-LCMS). The extract and the isolated compound were subjected to antioxidant, antibacterial, and anti-inflammatory studies. Results: MBI exhibited an effective antibacterial, antioxidant, and anti-inflammatory activities at a more significant level than the standards. HR-LCMS analysis of MBI revealed the presence of kaempferol, rutin, and several phytochemicals. The activity-guided repeated fractionation of the methanol extract by silica gel column chromatography yielded a compound that exhibited strong antioxidant activity. Based on various physicochemical and spectroscopic analyses (ultraviolet, infrared, proton nuclear magnetic resonance [NMR], carbon-13 NMR, and MS), the bioactive compound isolated was elucidated as 3,5,7-trihydroxy-2-(4-hydroxyphenyl)-4H-chromen-4-one (kaempferol). Furthermore, the molecular docking studies for kaempferol revealed that it binds β-lactamase at MEG binding site and was found to interact with binding site residues PHE91, TRP94, ASN109, MET148, GLU147, ASN36, and ILE201. Conclusion: The results from the present study suggest that the potent antioxidant, antibacterial, and anti-inflammatory activities observed are a result of the presence of these bioactive compounds within the extract. In addition, these results also demonstrate the antioxidant potency of kaempferol which could be the basis for its alleged health-promoting potential.

}, keywords = {Anti-inflammatory, Flavonoid, Free radicals, Kaempferol, Methanol extract}, doi = {10.4103/pr.pr_114_19}, author = {KM Anil Kumar and Ramith Ramu and S Chandan and Shivaraju Harikaranahalli Puttaiah} } @article {878, title = {Antidiabetic Activity and Phytochemical Screening of Crude extract of Stevia rebaudiana in Alloxan-induced Diabetic Rats}, journal = {Pharmacognosy Research}, volume = {2}, year = {2010}, month = {September 2010}, pages = {258-263}, type = {Original Article}, chapter = {258}, abstract = {

Background: Stevia rebaudiana regulates blood sugar, prevents hypertension and tooth decay. Other studies have shown that it has antibacterial as well as antiviral property. Methods: Preliminary phytochemical screening of aqueous, ether and methanolic extracts of S. rebaudiana was done. Acute and sub-acute toxicity were conducted on twenty four Albino rats, divided into one control (Group I) and three treatment groups viz. aqueous extract (Group II), ether extract (Group III) and methanolic extract (Group IV). For the study of antidiabetic effect of S. rebaudiana rats were divided into seven groups (n=6). Diabetes was induced by a single dose of 5\% alloxan monohydrate (125 mg/kg, i.p.) after 24 hour fasting.Blood samples were analysed on day 0, 1, 5, 7, 14 and 28. Results: Phytochemical tests showed presence of different kinds of phyto-constituents in aqueous, ether and methanol extract of Stevia rebaudiana leaves. Daily single dose (2.0 g/kg) administration of aqueous extract (A.E.) , ether extract (E.E.) and methanol extract (M.E.) for 28 days of S. rebaudiana could not show any significant change in ALT and AST levels in rats. Blood sugar level was found to be decreased on day 28 in groups of rats treated with A.E., E.E. and M.E. of S. rebaudiana. Conclusion: The extracts of Stevioside rebaudiana could decrease the blood glucose level in diabetic rats in time dependent manner.

}, keywords = {Aqueous extract, Diabetes, Ether extract, Methanol extract, Rats, Stevia rebaudiana, Sub-acute toxicity}, doi = {10.4103/0974-8490.69128}, author = {R. S. Kujur, Vishakha Singh and Mahendra Ram and Harlokesh Narayan Yadava and K K Singh and Suruchi Kumari and B. K. Roy} } @article {836, title = {Antifungal, Antibacterial and Antimycobacterial Activity of Entada abysinnica Steudel ex A. Rich (Fabaceae) Methanol Extract}, journal = {Pharmacognosy Research}, volume = {2}, year = {2010}, month = {July 2010}, pages = {163-168}, type = {Original Article}, chapter = {163}, abstract = {

The purpose of the study was to investigate the antifungal, antibacterial and antimycobacterial properties of methanol extract of Entada abysinnica steudel ex. A. Rich (Fabaceae) leaves used by herbalists from the Lake Victoria region, Kenya. The extract was tested against four strains of mycobacteria (Mycobacterium tuberculosis, Mycobacterium kansasii, Mycobacterium fortuitum, and Mycobacterium smegmatis) using BACTEC Mycobacteria Growth Indicator Tube (MGIT) 960 system and the proportional method. Standard procedures were used to determine the zones of inhibition, minimum inhibitory concentrations (MICs) and minimum bactericidal/fungicidal concentrations (MBCs/MFCs) for Candida albicans, Salmonella typhi, Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli, and Klebsiella pneumoniae. The extract showed activity against some mycobacteria strains, especially M. tuberculosis. It also showed strong antimicrobial activity (zones of inhibition were between 9.00 and 14.10 mm) against C. albicans, Sa. typhi, and St. aureus. The extract gave a better zone of inhibition against C. albicans than fluconazole whose zone of inhibition was 13.00 mm. The MICs and MBCs for C. albicans and Sa. typhi were good. The crude extracts were also analyzed for the presence of phytochemicals. Phytochemical screening indicated that the extract most abundantly contained tannins, saponins, and flavonoids. The data suggest that the methanolic leaves extract of E. abysinnica could be a rich source of antimicrobial agents, especially antifungals. The results further show that there is some merit in the use of the plant in alternative medical practices. However, bioassays of isolated compounds are underway and will be reported during subsequent communications

}, keywords = {Antibacterial, Antifungal, Antimycobacterial, Entada abysinnica, Methanol extract}, doi = {10.4103/0974-8490.65511}, author = {Richard M Mariita and John A Orodho and Paul O Okemo and Paul K Mbugua} }