In recent years, the scientific interest and particularly economic significance of halophytic plants has been highly demanding due to medicinal nutraceutical potential its bioactive compounds. A xero-halophyte Bassia indica is deemed be a very cheap source natural entities without chemical or biological investigation. this context, new acylated flavonol tetraglycoside, kaempferol-3-O-?-d-glucop...

Daar is ’n rykdom van kosbare materiaal ten opsigte van mediese kennis in die Bybel en die Talmud te vind. Melding van ’n groot aantal siektes word gemaak, asook die diagnosering, behandeling en voorkoms daarvan. Dikwels word melding ook gemaak van onderwerpe soos etiek vir die geneesheer, anatomie enfisiologie, forensiese geneeskunde, geestelike ongesteldhede en veral higiëniese maatreëls. Dit...

The phytochemical investigation of Gymnocarpos decander aerial parts extract afforded two new saponins, 3-O-β-D-glucuronopyranosyl-2β,3β,16α,23-tetrahydroxyolean-12-en-28-O-β-D-apiofuranosyl-(1 → 3)-β-D-xylopyranosyl-(1 → 4)-α-L-rhamnopyranosyl-(1 → 2)-α-L-arabinopyranosyl ester (1), 3-O-β-D-glucuronopyranosyl-2β,3β,16α-trihydroxyolean-12-en-28-O-α-L-rhamnopyranosyl-(1 → 3)-β-D-xylopyranosyl-(1...

Equilibrium dialysis of concanavalin A against methyl c¢-D-mannopyranoside and methyl C¢-D-glucopyranoside conducted at 2 ° in the presence of I M NaC1 showed that concanavalin A is bivalent. A SCATCHARD plot of the data obtained gave straight lines for both sugars with observed association constants (K') of 1. 4. lO 4 1/mole for methyl ,¢-D-mannopyranoside and o.3" IO 4 1/mole for methyl ~¢-D-...

Activated microglia are known to be a major source of cellular neuroinflammation which causes various neurodegenerative diseases, including Alzheimer's disease. In our continuing efforts to search for new bioactive phytochemicals against neuroinflammatory diseases, the 80% methanolic extract of Pteris multifida (Pteridaceae) roots was found to exhibit significant NO inhibitory activity in lipop...

The fruits of Withania coagulans Dunal (family: Solanaceae) are sweet, sedative, emetic, alterative and diuretic; used to treat asthma, biliousness, strangury, wounds, dyspepsia, flatulent colic, liver complaints and intestinal infections. Phytochemical investigation of the fruits yielded a withanolide tetraglucoside identified as (20S, 22R)-5alpha, 20alpha-diacetoxy-6beta-hydroxy- 1-oxowitha-2...

Hydroxyanthraquinones represent a group of pharmacologically active compounds characteristic for plants of the Rumex and Rheum genera. These compounds in the human intestine act as laxative compounds. As they cause the greatest side effects and are often abused by the public, their accurate analysis in plants and plant-derived laxatives is much needed. To isolate compounds from plants, pressuri...

Pterosins are abundant in ferns, and pterosin A was considered a novel activator of adenosine monophosphate-activated protein kinase, which is crucial for regulating blood glucose homeostasis. However, the distribution of pterosins in different species of ferns from various places in Taiwan is currently unclear. To address this question, the distribution of pterosins, glucose-uptake efficiency,...

Aromatase, catalyzing final step of estrogen biosynthesis, is considered a key target for the development of drug against estrogen-dependent breast cancer (EDBC). Identification and development of naturally occurring compounds, such as flavonoids, as drugs against EDBC is in demand due to their lesser toxicity when compared to those of synthetic ones. Thus, a three-dimensional quantitative stru...

Alternansucrase (EC 2.4.1.140, sucrose: (1-->6), (1-->3)-alpha-D-glucan 6(3)-alpha-D-glucosyltransferase) is a D-glucansucrase that synthesizes an alternating alpha-(1-->3), (1-->6)-linked D-glucan from sucrose. It also synthesizes oligosaccharides via D-glucopyranosyl transfer to various acceptor sugars. We have studied the acceptor products arising from methyl glycosides as model compounds in...