In research we studied the effect of vitamin C on the level of total
cholesterol ،triglycerides ، (HDL) and (LDL) in the stressful
rabbits blood by hydrogen peroxide (H2O2) . We used 30 rabbits
were divided into three groups:First groupnot stresse
d (control
group) ، Second group (Group stressed by H2O2) left without
treatment until the end of the experimental period ، third group
(Group stressful by hydrogen peroxide) was given orally vitamin C
solution at a rate of 100 mg / kg of body weight per a day for five
weeks.
لا يزال السرطان شائك الخلا يا الفموي يمتلك معدل وفيات ملحوظ على الرغم من
التقدم الكبير في مجال الجراحة و علم الأورام، لذلك فقد أصبح من الضروري تقصي التبدلات التي تصيب بروتينات الخلية الشائكة في سياق تحولها الورمي.
The study was accomplished on proteins (caseins – whey proteins) of local milk after producing casein by precipitation with ethanol , and whey proteins by heat precipitation. The functional properties (Water Binding – Emulsifying Properties – Gelatio
n) were studied on prepared milk proteins , the witness experiment (pure casein) was followed for comparison.
This functional properties were repeated after adding xanthane and starch with three different concentrations for each kind of proteins , then the results were compared. For statistical analysis, the system of totally –random selections was applied, and a comparison was made as of L.S.D test, and possibility level at 5%. The results showed improvement in functional properties of prepared milk proteins when xanthane and starch were added in the percentage ( 5 - 5 – 10 % ) for the properties (Water Binding – Emulsifying Properties – Gelation ) respectively.
The important health benefits of pomegranate fruit is Attributable to its
high concentration of polyphenolic compounds. This compounds concentration
is likely to be affected by cultivar, environment and development stage of fruits.
In this study,
some physic-chemical characteristics along with minerals (K,
Ca, Mg, and Fe) were determined in fruit during maturation stages every 20
day from 30 to 150 day-old fruit of two pomegranate accessions ‘Helo
Erbin’(AE) and ‘Lafan Al-Hesn’ (AH) grown in Syria. The highest percentage
of aril and juice and lowest percentage of peel were observed in 150-day-old
fruit.
الكشف عن علاقات القرابة الوراثية بين أنواع الجنسين ( Triticum L. AegilopsL ) باستخدام الواسمات الجزيئية
T cells express co-stimulatory molecules on their surfaces in both normal and
pathologic settings; however, the possibility that expression of these co-stimulators may enable individual
T cells to co-stimulate themselves has not been investigated.
This study aims at assessing the possible potentiation of T cells activation and proliferation both in vitro
and in vivo via enforced B7-1 expression on T lymphocytes using a non-genetic approach, i.e. cell painting,
that comprises binding of recombinant B7-1 to plasma membrane-anchored palmitoylated protein A.
Recent advances in membrane filtration technology provided new
opportunities for large scale low – cost protein fractionation from whey .
Exposure of whey to a pH of 5.0 prior to micro filtration using a 0.1 μm
ceramic membrane led to optimised re
tention of higher molecular weight
proteins immunoglobulin, bovine serum albumin and lactoferrin. The resulting
permeate contained a protein fraction enriched in Alfa – lactalbumin and Beta
– lactoglobulin. Enrichment of Alfa –lactalbumin relative to Beta –lactoglobulin
was accomplished using new UF ceramic membranes with different molecular
weight cut – off.
Determination of the optimum induction and lethal levels of stress are
considered the most important prerequisites for the proposed screening
technique. This research was conducted at the Faculty of Agriculture at
Damascus University in the year ٢
٠٠٠. The main objective of this investigation
was to screen sorghum lines for heat stress tolerance and determine the
effectiveness of the proposed technique in screening for this environmental
stress at the seedling stage.
