Background:
Angiogenic potential m most tumors; characterized by VEGF and vascular bed density around tumor islands, is believed to be an important marker in predicting tumor growth,
recurrence and metastasis.
Materials and Methods:
The study included 50 cases of ameloblastomas. From each case 4 μm sections were stained IHC with antivascular endothelial growth factor antibody- and endothelial lined
vessels anti CD34 antibody to evaluate their expression and intensity in relation to their Fac Med Baghdad clinicopathological features.
Results:
Generally, VEGF was significantly highly expressed with strong intensity in outer cell layer of tumor islands, and the newly formed blood vessels were significantly
predominantly rounded and small in size in comparison to dental folicale and papilla of tooth germ. Young aged patients (≤ 20yrs) had highest mean MvD around tumor islands
(35.9). Regarding WHO classification; follicular, plexiform and lining cells in UAB had higher expression then acanthomatous and types, but 67% of those in plexiform were of
moderate intensity. There was no significant differences in mean MvD in all histological solid subtypes, and characterized by round and small vessels. Except those in plexiform,
they were elongated and medium. UAB had significant lower microvessel count around lining tumor cells (but not around mural growth) and more percentage of elongated medium
sized vessels than follicular but less than plexiform. There was significant correlation between VEGF expression and the shape of microvessels. Considering different
morphological cellular pattern, basal cells showed the highest VEGF positivity and intensity (87.5).
Conclusions:
The present study indicate the usefulness of the VEGF expression and MvD in explaining the aggressive, locally invasive biological behavior of ameloblastoma. The high
angiogenic potential is enhancing tumor cell survival and the increase in the production of new blood vessels formation is facilitating tumor growth, and by time will enhance the
proliferation potential of the incompletely removed surviving tumor islands, so increasing the chance of ameloblastoma recurrence.
The aim of this research is to identify the role of strategic agility achieving organizational excellence in one of the formations of the Ministry of Municipalities (Dhi Qar Sewage Directorate), as important service organizations that have a key role in serving and developing the society which faced many administrative challenges and issues and as a result of the changes in the environment is continuing and accelerating, so the adoption of modern administrative concepts such as strategic Agility and knowledge of their role in achieving organizational excellence can help them in facing these changes and achieve what they aspire to. In order to achieve research objectives, two main hypotheses have been formulated. The first hypothe
... Show MoreThe current study was conducted on 100 females who were divided into two main groups; 60 with breast cancer and 40 healthy controls. Blood samples were collected from both premenopausal and postmenopausal breast cancer and healthy women. The samples were appropriately processed for the analysis of trace elements (zinc, copper, and lead) by using flame atomic absorption spectrophotometry (FAAS). The results showed a highly significant decrease (p< 0.01) in the mean serum level of zinc of in both pre- and postmenopausal breast cancer women (71.7 + 5.1 and 70.4 + 5.4 µg/dL, respectively) compared with healthy controls (89.7 + 10.2 and 97.5 + 13.2 µg/dL, respectively) . Also, a highly significant
... Show MoreCoral reef area in northwest of the Arabian Gulf was investigated for mineralogy and geochemistry to throw lights on such unique Iraqi Marine Environment; six specimens of two main species of coral reefs, Platygyra pini Chevalier, 1975 and Octocoral Menella were collected at two sites. While eight samples of the surrounding sediments are chosen from other two sites. The mineralogy is determined by XRD, and reveals that calcite, low magnesium-calcite, and aragonite are the main minerals that comprise the Octocoral Menella in site 1, whilst aragonite and calcite are dominate in the P. pini coral reef at site 4.
The non–carbonate fractions indicate that thes
... Show MoreNanoceria have shown numerous unique characteristics, such as biocompatibility and are excellent agents for biological applications. The aim of this study is to investigate cerium oxide nanoparticles for 2, 2- diphenyl-1-picryl-hydrazyl-hydrate (DPPH) free radical scavenging activity and their ability to offer protection against ionizing radiation. In vitro antioxidant activity study of nanoceria particles has shown good free radical scavenging activity for DPPH radical assayed within a concentration range of 0.01 to 0.05 g/l, at higher concentrations of nanoparticles showed reverse trend in absorbance and inhibition indicating this finite rang of concentration is suitable for scavenging free radicals, also nanoparticles were found to ha
... Show MoreAllergic asthma is a type of asthma that provokes symptoms when an individual is exposed to certain triggers, such as pollen, animal sources of allergens, and other various types of allergens. These allergens cause an immune response that influences lungs and leads to difficulties in breathing. The current study is performed to estimate the concentrations of immunoglobulin E (IgE) and interleukin-13 (IL-13), tested by using the enzyme-linked immunosorbent assay (ELISA) and the numbers of eosinophils, calculated by using hematological analyzers, in the blood of patients with allergic asthma. A total of 150 patients and 50 healthy individuals were randomly selected for the study. The results revealed that IgE and IL-1
... Show MoreThe study aimed to investigate the effect of using the intructional computer individually or through the cooperative groups on the achievement of the ninth grade students in mathematics compared to the traditional method. The experimental method adapted three groups out of three schools were chosen, two groups of the students where applied the computer method. The comtrol group used the simple random method, and it used the diagnostic test as tool for the study.The result showed that there is a statistically significant difference between the mean scores of the experimental groups and the control group on the post-test for the two experimental groups.
Background: Since 1985 the World Health Organization (WHO) had stated: “There is no justification for any region to have Caesarian Sections (CS) rates higher than 10-15%”. Since then, CSs have become increasingly common in both developed and developing countries. The rate of CS has been reported to be as high as 24.5% and 25.8% among Iraqi women in the years 2009 and 2010 respectively.
Objectives: The study was designed to provide data on the level of existing knowledge, attitudes and preference of modes of delivery, which can be used as a platform to raise knowledge among pregnant women and their partners and thereby empowering women to make informed choices.
Patients and Methods: This cross-sectional study was undertaken in a
Back ground: Intestinal parasitic infections are among the most common infections world wide and are regarded as a serious public-health problem.
Methods: The study was carried out during the period from October 2008 to the end of January 2009 in five different markets of Baghdad. Six different type of vegetables were selected for this study including tomato, onion, cabbage, lettuce, carrot and pepper. The vegetables soaked for 10 minutes and washed in saline, centrifuged and the sediment examined for the presence of intestinal parasites. A total of 168 specimens of faeces were collected from vegetables handlers of the markets studied then, specimens were examined for the presence of intestinal parasites by the direct smear method and
Non-alcoholic fatty liver disease (NAFLD) has become one of the most common chronic liver diseases worldwide, which characterized by steatosis, inflammation, and fibrosis. The aim of this designed study is to evaluate the ability of guggulsterone to prevent high fat diet induced steatohepatitis in mice. Five groups of male mice were selected and treated as the following: group I, mice had free access to standard commercial diet and considered as control group, group II, mice were fed a specially formulated high-fat diet for 12 weeks to induce non-alcoholic liver disease, while groups III, IV and V the mice were administered high fat diet containing guggulsterone at 500, 1000 and 2000 ppm concentration respectively for 12 weeks. Maintaini
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