Ultrastructural characterization of internal basement membrane of junctional epithelium at dentogingival border
نویسندگان
چکیده
منابع مشابه
P-98: Ultrastructural Study of Basement Membrane of Seminiferous Tubules in Adult Diabetic Rats with Spermatogenic Alterations
Background: The complications of diabetes are the major problems that occur in diabetic patients. It has been reported that, insulin insufficiency and the impairment of regulatory action of this hormone on Leydig and Sertoli cells have an important role in testicular alterations. Testicular disorders and change in normal spermatogenesis is one of the consequences of diabetes. This study was des...
متن کاملPatterns of SPARC expression and basement membrane intactness at the tumour-brain border of invasive meningiomas.
The matricellular glycoprotein SPARC (secreted protein, acidic and rich in cysteine), also termed osteonectin, has been found to regulate the invasive behaviour of several tumour types by interacting with basement membrane constituents. Brain invasive meningiomas are supposed to disrupt the pial-glial basement membrane. In the present study we aimed at determining the relationship of basement m...
متن کاملUltrastructural tubular basement membrane lesions in adult polycystic kidney disease.
The pathogenesis of adult polycystic kidney disease (PCKD) remains an enigma. In an attempt to find a defect that might explain the cyst formation, an ultrastructural study was performed on seven fresh bilateral nephrectomies of seven patients suffering from adult PCKD. Marked electron microscopic changes of the tubular basement membranes were detected, including thickening, splitting, fraying,...
متن کاملUltrastructural identification of spirochetes and flagellated microbes at the brush border of the large intestinal epithelium of the rhesus monkey.
Spiral-shaped organisms exclusively and intimately populate the brush border of the cecal and colonic epithelium of healthy monkeys (Macaca mulatta). These organisms replace the glycocalyx, destroy most microvilli, and attenuate the terminal web of the brush border. Despite these remarkable alterations, the remaining host cellular structure is unchanged. Two structurally distinct microbes, a sp...
متن کاملsynthesis and characterization of some macrocyclic schiff bases
ماکروسیکلهای شیف باز از اهمیت زیادی در شیمی آلی و دارویی برخوردار می باشند. این ماکروسیکلها با دارابودن گروه های مناسب در مکانهای مناسب می توانند فلزاتی مثل مس، نیکل و ... را در حفره های خود به دام انداخته، کمپلکسهای پایدار تولید نمایند. در این پایان نامه ابتدا یک دی آلدئید آروماتیک از گلیسیرین تهیه می شود و در مرحله بعدی واکنش با دی آمینهای آروماتیک و یا آلیفاتیک در رقتهای بسیار زیاد منجر به ت...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Anatomical Record
سال: 1996
ISSN: 0003-276X,1097-0185
DOI: 10.1002/(sici)1097-0185(199611)246:3<317::aid-ar2>3.3.co;2-j