نتایج جستجو برای: transitional zone
تعداد نتایج: 127529 فیلتر نتایج به سال:
Squamous cell carcinomas occurring at transition zones are highly malignant tumors with poor prognosis. The identity of the cell population and the signaling pathways involved in the progression of transition zone squamous cell carcinoma are poorly understood, hence representing limited options for targeted therapies. Here, we identify a highly tumorigenic cancer stem cell population in a mouse...
The Kelkit Valley is geographically a transitional zone between the Middle Black Sea and Inner Anatolia regions in Turkey. Two new species of Macrochelidae are described from this area--Longicheles ozkani sp. nov. and Longicheles ayyildizi sp. nov. Longicheles lagrecai (Valle, 1963) is recorded for the Turkish fauna and redescribed on the basis of specimens collected from the Valley. A world-wi...
A phylogenetic analysis of the 21 species of genus Pelinoides using 44 discrete morphological characters is presented. From the previous proposed three groups, pallipes, sulcatus and cyclocerus, the first is recovered. The sulcatus group appears as paraphyletic in terms of cyclocerus. Pelinoides is present in the Neotropical and Andean Regions and in the Transitional South American Zone. Four a...
Tendons/ligaments insert into bone via a transitional structure, the enthesis, which is susceptible to injury and difficult to repair. Fibrocartilaginous entheses contain fibrocartilage in their transitional zone, part of which is mineralized. Mineral-associated proteins within this zone have not been adequately characterized. Members of the Small Integrin Binding Ligand N-linked Glycoprotein (...
Diatom assemblages were analysed to clarify the changes in sedimentary environments caused by the Holocene sea level changes, and the results were cross-checked with information from the field observations of sedimentary facies. Diatoms were grouped into three ecological categories; marine, brackish and freshwater. Based on the ecological spectrum of the diatoms, the sediments were divided into...
Transitional neuronal layers are a hallmark of the prenatal and neonatal brain yet their contribution to the development of higher functions is not clear. Evidence accumulated over the last 3 decades shows that early connectivity and functional activity start in a transitional layer called the subplate zone (SPZ). The SPZ is host to a heterogeneous population of neurons and its evolutionary com...
The Prostate, which is part of the male reproductive system, is an exocrine gland that encloses the male urethra and its base is located at the bladder neck. A thin layer of connective tissue separates the prostate and seminal vesicles from the rectum posteriorly. There are three distinct zones found in the prostate gland. These are (a) the peripheral zone, (b) the transitional zone and (c) the...
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