Two new cyclopeptide alkaloids, sativanine-N and sativanine-O were isolated from the stem bark of Zizyphussativa and their structures were established by spectral analysis.

Our purpose in this randomized, double blind, placebo controlled study was to find out the possible effect of a polyphenolic pine bark extract, Pycnogenol® (Pyc) on the level of 8-oxo-7,8-dihydroguanine (8-oxoG) as representative of oxidative damage to DNA and on the DNA repair ability of elderly people. According to our results, three months of Pyc administration had no effect on the level of ...

Four medicinal plants Acacia nilotica, Bombax buonopozense, Terminalia avicennioides and Zanthoxylum zanthoxyloides traditionally used for treatment of sleeping sickness in Nupeland were investigated for in vivo antitrypanosomal activity. Methanol extracts of different parts of each plant (stem barks and fruits) were obtained and evaluated for their in vivo antitrypanosomal activities against T...

How trees allocate their biomass among different components has important implications for survival and growth ecosystem carbon cycling. Data on the distribution pattern dynamics of tree are essential fully exploiting forest sequestration potential achieving goal neutralization. However, there not been enough research to-date spatial allocation temporal in site qualities at specific species sca...

Stem diameter is one of the most commonly measured attributes of trees, forming the foundation of forest censuses and monitoring. Changes in tree stem circumference include both irreversible woody stem growth and reversible circumference changes related to water status, yet these fine-scale dynamics are rarely leveraged to understand forest ecophysiology and typically ignored in plot- or stand-...

Diospyros capricornuta is an endemic species widely distributed along the coast of Tanzania that used as food condiments and traditional medicine. The chemical compositions leaves, stem-bark, root-bark extracts; their bioactive potentials against Aspergillus flavus parasiticus were investigated. samples D. extracted using Soxhlet apparatus resultant extracts analyzed Gas Chromatography-Mass Spe...

Abstract. A study on physicochemical characteristics of Ceiba petandra and Lannea kerstingii stem bark extracts cream being developed for the treatment of topical dermatophytic infections has been carried out to assure safe, effectiveness and stability during storage and usage. The stem barks of Ceiba petandra and Lannea kerstingii were extracted with methanol and ethyl acetate respectively. Th...

From the stem bark of Garcinia benthami a new benzophenone, named Salimbenzophenone, was isolated. The structure was determined by means of spectroscopic analysis.

A new steroid, 3-hydroxy adiantulanosterol (5), together with four known compounds, were isolated from the stem bark of Alstonia scholaris. All structures were elucidated by spectroscopic methods.

AIM This study assessed within 4 days of suppressive test in vivo antimalarial activity of Ethanolic extract of root and stem bark of Cassia sieberiana DC against chloroquine sensitive strain of Plasmodium berghei NK65 in mice. METHODOLOGY Two sets, each of five groups of four mice per each group were used. The groups of animals were administered with 100, 200, and 300 mg extract/kg body weig...