This study was carried out to determine the total content of flavonoids of dried and
fresh hawthorn flowers and leaves in water and hydroalcolic extracts. The method of cold
and hot maceration was used to prepare these extracts. The active compound
s which were
found in these extracts were detected by many chemical reactions. The results of these tests
showed that the extracts contain: phenols, flavonoids, and saponins.The total content of
flavonoids was determined using spectrophotometric methods by forming complex with
aluminum chloride and measurement absorbance at 510nm, it has been shown that quantity
of flavonoids in dried samples ranges from 0.16 to 1%, while it's quantity in fresh samples
0.026- 0.18%.
Background& Objective: This research is carried out to investigate the Anti-inflammatory activity of the alcoholic extract of flower buds of Crataegus laevigata in experimentally-induced arthritis in rats.
Materials & Methods: the inflammation was i
nduced experimentally by Carrageenan, the standard material that causes non-immune acute inflammation. The size of edema was measured before and after the inducing the inflammation, in control group as well as in group treated by extract and by Diclofenac.
The measurements persist until the 4th hour following the injection of Carrageenan. In another set of experiment, the important biomarker, TNF-α, was calibrated in inflammation-induced groups of rats that received extract or Diclofenac and compared with control.
Results: The extract significantly reduced the size of edema compared with control and this effect was not less than that of Diclofenac, the standard anti-inflammatory drug. Indeed, the extract lowered the values of TNF-α.
Conclusion: The Crataegus laevigata has clear anti-inflammatony effect , but it should be further investigated.
Biodiversity of wild relatives of Cataegus were studied in North-West region
of Damascus countryside located between latitudes 33.36 -33.58 N and
longitudes 35.58-36.39 E including 7 sites and 21 subsites ranging from
Zabadane to Alnabk. Results s
howed that the most of the individuals in the
search area belonging to C. azarolus and var. aronia and rare individuals ere
found to belong to C. monogyna. The study on the level of intraspecific
variability showed the presence of of three taxanomic groups, each had been
characterized with morphological and environmental qualities.The study also
pointed to the where of these species and their different types are located and to
the exist of corrlation between environmental factors and morphological
variables.
This study was carried out on three rootstocks of Crataegus monogyna Jacq.
With one seed containing fruit C.oxycantha L. with three seeds as well as C.
azaraolus Borkh, to identify the best method of Crataegus propagation.
The hardwood cuttings of
C.azarolus Borkh rooted in a IBA solution (4ooo
ppm)showed the highest rooting percentage 20% when grown in sand as well as
peat moss containing fermented arganic manure media.
