نتایج جستجو برای: agnor method
تعداد نتایج: 1630324 فیلتر نتایج به سال:
PURPOSE To evaluate the mutual inter-relationship of mitotic indices, argyrophilic nuclear organizer regions (AgNOR) count, Ki-67 and B-cell lymphoma 2 protein (bcl-2) in papillary urothelial bladder cancer (pUBC), and their correlation with grade and stage. To establish the cut-off values of these markers to detect high grade and muscle invasive bladder cancer. MATERIALS AND METHODS Fifty-fo...
پیش زمینه و هدف: به دلیل وجود شباهت کلینیکی و هیستوپاتولوژیک لیکن پلان دهانی و واکنش های لیکنوئید دهانی و رویکرد درمانی متفاوت آن ها از یکدیگر و همچنین حضور دیسپلازی در مقاطع بافتی لیکن پلان دهانی و تأثیرآن در پروگنوز و رویکرد درمانی ضایعه، مطالعه ی حاضر به ارزیابی فعالیت پرولیفراتیو لیکن پلان دهانی و واکنش های لیکنوئید دهانی و زیرگروه های آن ها به وسیله تکنیک ارزان و آسان agnor برای بررسی تأثی...
Early detection of oral squamous cell carcinoma (OSCC) and potentially malignant disorders (OPMD) is important for dental professionals to improve patient survival rates. More than half patients with cancer had advanced disease at the time diagnosis, indicating a lack early risk assessment biomarkers. The development new protein biomarkers will help in diagnosis treatment.The argyrophilic nucle...
نواحی سامانگر هستک (nor=nucleolar organizer regions) حلقه هایی از dna حاوی ژنهای ریبوزومی هستند که rna ریبوزومی، جهت پروتئین سازی، از روی آن ترجمه می شود. نواحی سامانگر هستک(nor) در بازوی کوتاه کروموزومهای آکروسانتریک قرار دارند و حاوی پروتئینهای نقره دوست می باشند که در رنگ آمیزی کلوئید نقره به صورت نقاط سیاه رنگی به نام agnor مشاهده می شوند. تعداد agnorها در هسته با میزان فعالیت تکثیری سلولی ...
Objectives The aim of this study is finding a practical and easy way to differentiate, between two malignant tumors Adenoid Cystic Carcinoma (ACC) and Polymorphous Low-grade Adeno Carcinoma (PLGA) histologically. In this regard, We proposed silver nitrate staining (AgNOR). Methods In this cross-sectional study, 30 parrafin-embedded blocks of ACC and 9 paraffin-embedded b...
The expression of the nucleolar organizer regions (NORs) was quantified in paraffin sections of tumors and lymph node metastasis, by means of digital image analysis, in 75 patients with resected non-small cell lung cancer (NSCLC). Patients were divided in two groups: early stage (stages I and II) and advanced stage (stages IIIa, IIIb and IV). The prognostic significance of AgNOR expression was ...
OBJECTIVE To evaluate the changes induced in silver-stained nucleolar organizer regions (AgNORs) by the first fraction of a radiotherapy protocol for gynecologic cancer on exfoliated cytologic samples to predict the therapeutic success of the full protocol. STUDY DESIGN Thirteen gynecologic cancer patients who were scheduled for radiotherapy were included in the study. Cell smears were taken ...
BACKGROUND Argyrophilic nucleolar organizer regions (AgNORs) and MIB-1 as proliferating activities have been applied separately to assess the malignant potential of cancer cells. We conducted staining of AgNORs and MIB-1 in 42 surgically-resected invasive breast carcinomas. MATERIALS AND METHODS Paraffin-embedded sections were used for double staining and the mean AgNOR counts in 100 MIB-1-po...
BACKGROUND The amount of argyrophilic nucleolar organiser regions (AgNORs) represents a cell kinetics parameter used in tumour pathology for prognostic purposes. AgNOR expression is directly related to the rate of ribosome biogenesis, which has been recently shown to be controlled also by the tumour suppressor proteins pRb and p53. AIMS To ascertain the relative prognostic value of AgNORs and...
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