نتایج جستجو برای: شاخص pni
تعداد نتایج: 75081 فیلتر نتایج به سال:
Perineural invasion (PNI) has been recognized as a poor prognostic factor in several malignancies, but the definition and pathogenesis of PNI in esophageal squamous cell carcinoma (ESCC) remains to be defined. PNI was evaluated by H&E staining and S100 immunohistochemistry. The predictive value of PNI in the prognosis of ESCC patients was analyzed. PNI was evaluated in vitro and in vivo. A tota...
هدف از این پژوهش بررسی نوسانات عمق آب زیرزمینی تحت تاثیر خشکسالی هواشناسی در آبخوان کمیجان است. بدین منظور با دریافت اطلاعات 32 چاه پیزومتری و سه ایستگاه هواشناسی کمیجان، قهاوند و خنداب واقع در محدوده آبخوان، اثر خشکسالی هواشناسی از طریق شاخص‌های خشکسالی بارش استاندارد شده (SPI)، درصد نرمال (PNI) و دهک‌ها (DI) بر شاخص آب‌های زیرزمینی (GRI) مطالعه شد. بررسی‌ها براساس آزمون همبستگی پیرسون در مقیا...
حوزه کهورستان با مساحتی بالغ بر 45/17144 هکتار در غرب استان هرمزگان واقع شده است که جزء مناطق با اقلیم خشک محسوب می شود. متوسط بارندگی در این حوزه 117/156 میلیمتر است. متاسفانه در سالهای اخیر این منطقه دچار خشکسالی مستمر و شدیدی شده است که باعث کاهش سطح زیر کشت، سطح آب زیرزمینی، افزایش شوری آبخوان و افزایش آب مصرفی و... شده است. در این تحقیق خشکسالی منطقه با استفاده از سه شاخص خشکسالیspi، diو p...
OBJECTIVES Tumor-associated macrophages (TAMs) are thought to be involved in the perineural invasion (PNI) process and to be associated with poor prognoses. The associations between TAMs, PNI, and clinicopathological features in pancreatic ductal adenocarcinomas (PDAs) remain to be elucidated. METHODS Fifty-nine PDA patients who had undergone pancreaticoduodenectomy were retrospectively exami...
Background and Objectives: Nutrition and inflammation play a crucial role in the development of cancer. The prognostic value of the prognostic nutritional index (PNI) has been confirmed in some types of human cancers. This study analyzed the prognostic significance of the preoperative PNI in patients with stage III gastric cancer after curative surgery. Methods and Study Design: In this retrosp...
BACKGROUND Perineural invasion (PNI) is the dominant pathway for local invasion in prostate cancer. To date, only few studies have investigated the molecular differences between prostate tumors with PNI and those without it. METHODS To evaluate the involvement of both microRNAs and protein-coding genes in PNI, we determined their genome-wide expression with a custom microRNA microarray and Af...
BACKGROUND Risks of perineural invasion (PNI) in T1-2 oral tongue squamous cell carcinoma (SCC) have not been specifically elucidated. METHODS Pathological features, including PNI, were re-reviewed under regular hematoxylin-eosin staining in 190 patients with T1-2 oral tongue SCC. RESULTS Tumor thickness >5 mm, PNI(+), and lymphovascular invasion (+) independently predicted lymph node invol...
OBJECTIVE Impaired immunonutritional status has disadvantageous effects on outcomes for cancer patients. Preoperative albumin-to-globulin ratio (AGR) and the prognostic nutrition index (PNI) have been used as prognostic factors in various cancers. We aimed to evaluate the clinical significance of the AGR and PNI in glioblastoma. MATERIALS AND METHODS This retrospective analysis involved 166 p...
OBJECTIVE To determine the relationship between perineural invasion (PNI) on prostate biopsy and radical prostatectomy (RP) outcomes in a contemporary RP series, as there is conflicting evidence on the prognostic significance of PNI in prostate needle biopsy specimens. PATIENTS AND METHODS From 2002 to 2007, 1256 men had RP by one surgeon. Multivariable logistic regression and Cox proportiona...
Objective: The prognostic significance of perineural invasion (PNI) in cervical cancer has been previously investigated with no consistent conclusion. This study aimed at determining the prognostic value of PNI in cervical cancer patients who underwent radical hysterectomy. Method: Clinical data of 413 patients with cervical cancer (stages IB-IIB) who underwent radical hysterectomy between 2009...
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