نتایج جستجو برای: histological techniques
تعداد نتایج: 693579 فیلتر نتایج به سال:
in this study, isolate sr99-ua (race 70e 128) of wheat stripe rust (puccinia striiformis west. f. sp. tritici eriks) was used to infect susceptible spring wheat (cultivar thatcher) and its near isogenic line possessing yr-18 adult-plant resistance gene. samples were taken at the flag leaf stage and observed using light, transmission and scanning electron micro-scopes. no major differences in th...
The present study was carried out to examine the capability of saturated sodium chloride solution as a fixative agent instead of formalin which is regarded as a carcinogenic material. For this purpose 3 rabbits were used and their livers, kidneys and spleens were exposed and removed. Neutral buffered formalin solution, saturated sodium chloride solution and distilled water were used as fixative...
BACKGROUND Although histologic chorioamnionitis (HCA) is known to be associated with poor outcomes in preterm infants, its clinical significance among term infants is not clearly known. OBJECTIVES To investigate the utility of HCA in determining early onset clinical sepsis (EOCS) among term newborns. METHODS The incidence of HCA and EOCS in term infants born during 2008-2009 was evaluated i...
The histological processing of teeth is highly complicated because of containing both mineralized hard tissues and soft tissues. Depending on the type of decalcification agents used in processing, mild-to-severe deterioration in the tissue structure and inadequacies on clear staining of details by the histological stain may be observed. This study aims to compare the histological staining diffe...
Morphometric analysis of tissue melanin may quantitatively contribute to research on pigmentation disorders. The authors present three methods for image analysis, which allow for identification of melanin-equivalent pixels in the epidermis using Fontana-Masson stain and, therefore, for the calculation of its percentage in the different epidermal layers. Moreover, they discuss the main elements ...
BACKGROUND In recent years, there is an increasing tendency to use diced cartilage grafts in rhinoplasty surgery for improving dorsum contour irregularities. This study was designed to compare graft resorption between three techniques of diced cartilage using surgical blade, electrical grinder and grater in rabbit model. METHODS Thirteen New Zealand rabbits were divided into three groups. Th...
diabetes mellitus is the most common cause of chronic renal disorders and end-stage kidney disease in developed countries. it is the major cause of dialysis and transplantation. failure in renal function causes wide disorders in the body. diabetes results in wide range of alterations in the renal tissue. it is believed that early histological changes in diabetic nephropathy are detectable 2 yea...
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