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 use of remote sensing and Geographic Information System (GIS) are among the most efficient modern tools to study the varied natural resources in terms of localization, identification of characteristics, and the study of its dynamics. Thus, the aim of this study is to show the importance of remote sensing and Geographical Information System in studying the Guercif irrigated plain. We will first process and analyze satellite images using the program (Erdas IMAGINE 15. 00) and then create thematic maps illustrating the irrigated area's evolution (ArcGIS 10.8). The results revealed that since the late 20th century, the area of Guercif Plain has expanded significantly, with the total irrigated space that has been doubled many
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This study was performed at Rheumatology and Rehabilitation Consultation Unit in Baghdad Teaching Hospital. Venous blood sample were drawn from (59) female with FMS and (30) control (without FMS). The serum was obtained after on standing in order to coagulate then centrifuged. The mean age± SD of FMS group was (42.22±15.34) years and for control was (40.7±18.22) years. Those participants were subdivided into four different groups acc
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The research focuses on clarifying the dimensions of improvisational techniques and its multiplicity in the modern theater. It analyzes the method of improvisation and its use in the construction and composition of the theatrical performance. It deals with two important experiments, such as the experience of the Russian directo
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