OBJECTIVES The current study was aimed to determine the bioactive constituents and biological effects of the Crataegus monogyna ethanolic extracts from bark, leaves and berries on hypercholesterolemia. MATERIALS AND METHODS Oleanolic acid, ursolic acid, quercetin and lupeol concentrations were quantified by HPLC. Total phenol content and radical scavenging activity of extracts were also measu...

Twelve new tirucallane triterpenoids, named cornusalterins A-L (1-12), and two known tirucallane triterpenoids, deoxyflindissone (13) and (-)-leucophyllone (14), were isolated from a MeOH extract of stems and stem bark of Cornus walteri. The structures of the new compounds were determined by spectroscopic methods, including 1D and 2D NMR analyses. Compounds 12 and 13, possessing a tetrahydrofur...

The ethanol extract of Ganoderma lucidum showed inhibitory activity on both isozymes (types 1 and 2) of 5a-reductase and suppression effects of ventral prostate growth induced by testosterone in castrated rat, but not induced by dihydrotestosterone. Activity-guided fractionation and TLC analysis suggested that the active principles in vivo were triterpenoids. These results indicate that the tri...

Drugs and some chemical agents are known to induce hepatotoxicity in humans which is of great concern to clinicians. Chemical agents are been screen daily for their hepatoprotective properties. Among these chemical agents is vitamin E which has drawn wide attention due to it reported hepatoprotective property as reported by researchers. This study collected and evaluated reports to ascertain th...

Three novel multiflorane-type triterpenoids, 3α-p-nitrobenzoylmultiflora-7:9(11)-diene-29-benzoate (1), 3α-acetoxymultiflora-7:9(11)-diene-29-benzoate (2), and 3α-acetoxymultiflora-5(6):7:9(11)-triene-29-benzoate (3), along with two known related compounds 4 and 5 were isolated from the seeds of zucchini (Cucurbita pepo L). Their structures were determined on the basis of 1D and 2D NMR spectros...

homalium letestui pellegr (flacourtiaceae) is used traditionally by the ibibios of southern nigeria to treat stomach ulcer, malaria and other inflammatory diseases and yorubas of western nigeria as an antidote. the hepatoprotective effect of the stem extract (200-600 mg/kg) was evaluated by the assay of liver function parameters, namely total and direct bilirubin, serum protein and albumin, tot...

CONTEXT To systematically evaluate the effects of hepatoprotective agents, when delivered either alone or in combination with other antiviral or non-antiviral drugs in patients with hepatitis B and hepatic fibrosis. OBJECTIVES The current randomized controlled clinical trials aimed to evaluate the efficacy of combinations of antiviral and non-antiviral hepatoprotective agents on indexes of li...

Renal function tests (serum creatinine, urea and uric acid), were performed in acetaminophen-intoxicated rabbits during hepatoprotective and hepatocurative treatment with Momordica charantia fruit extract. In hepatocurative group, the M. charantia treatment was preceded by acetaminophen intoxication, whereas, in hepatoprotective group, the acetaminophen intoxication was preceded by M. charantia...

Triterpenoids are widespread bioactive plant defence compounds with potential use as pharmaceuticals, pesticides and other high-value products. Enzymes belonging to the cytochrome P450 family have an essential role in creating the immense structural diversity of triterpenoids across the plant kingdom. However, for many triterpenoid oxidation reactions, the corresponding enzyme remains unknown. ...

Fractionation of an antitrypanosomal lipophilic leaf extract from Strychnos spinosa led to the isolation of eight triterpenoids and sterols in this plant part for the first time. Two of these were found to possess in vitro antitrypanosomal activity, namely, saringosterol (14) and 24-hydroperoxy-24-vinylcholesterol (15), with IC(50) values of 7.8 +/- 1.2 and 3.2 +/- 1.2 microM, respectively. The...