نتایج جستجو برای: شاخص mec

تعداد نتایج: 78019  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Jake Ormond Bruce L McNaughton

Both hippocampal place fields and medial entorhinal cortex (MEC) grid fields increase in scale along the dorsoventral axis. Because the connections from MEC to hippocampus are topographically organized and divergent, it has been hypothesized that place fields are generated by a Fourier-like summation of inputs over a range of spatial scales. This hypothesis predicts that inactivation of dorsal ...

Journal: :Neuron 2013
Cody J. Smith Timothy O’Brien Marios Chatzigeorgiou W. Clay Spencer Elana Feingold-Link Steven J. Husson Sayaka Hori Shohei Mitani Alexander Gottschalk William R. Schafer David M. Miller

Sensory neurons adopt distinct morphologies and functional modalities to mediate responses to specific stimuli. Transcription factors and their downstream effectors orchestrate this outcome but are incompletely defined. Here, we show that different classes of mechanosensory neurons in C. elegans are distinguished by the combined action of the transcription factors MEC-3, AHR-1, and ZAG-1. Low l...

نصرت الله عشقیار نفیسه شاملو محمودی پرویز دیهیمی,

مقدمه: موکواپیدرموئید کارسینوما ((MEC و آدنویید سیستیک کارسینوما (AdCC) شایع ترین تومورهای بدخیم غدد بزاقی هستند که رفتار بیولوژیک آنها کاملا مشخص نشده است. از عواملی که در رفتار بیولوژیک این تومورها موثر قلمداد شده است، تهاجم اطراف عصبی و عروقی می‏باشد. لذا هدف این مطالعه، بررسی تهاجم اطراف عصبی و عروقی AdCC و MEC غدد بزاقی اصلی و فرعی با استفاده از مارکرهای NCAM، S-100، GFAP به عنوان مارکرهای...

2002
CAROLINE E. GARGETT MARINA ZAITSEVA KRISTINA BUCAK SIMON CHU PETER J. FULLER PETER A. W. ROGERS

Estrogen has a cardiovascular protective role in women due in part to its effect on the vasculature. The roles of the two estrogen receptors (ERs), ER and ER , in the vascular actions of estrogen are unclear, as are effects of estrogen on microvascular endothelial cells (MEC) derived from sex steroid-responsive tissues. The present study demonstrates that 17 -estradiol, but not progesterone, in...

Journal: :Carcinogenesis 2011
Nune Markosyan Edward P Chen Victoire N Ndong Yubing Yao Christopher J Sterner Lewis A Chodosh John A Lawson Garret A Fitzgerald Emer M Smyth

Inhibition of cyclooxygenase (COX) 2, which is associated with >40% of breast cancers, decreases the risk of tumorigenesis and breast cancer recurrence. To study the role of COX-2 in breast cancer, we engineered mice that lack selectively mammary epithelial cell (MEC) COX-2 (COX-2 KO(MEC)). Compared with wild type (WT), MEC from COX-2 KO(MEC) mice expressed >90% less COX-2 messenger RNA (mRNA) ...

2006
Felix Friedman

The 2006 International Conference on Scientific Computing (CSC’06) Abstract Partitions of a plane, based on two or three of its points, are introduced. The study of these partitions is applied to finding the minimal enclosing circle (MEC) for a set S of n planar points. MEC(S), the MEC of n points of S, is defined by either a pair of S points with the largest distance (tight two-tuple) or by a ...

2017
Johannes H. Matse Enno C.I. Veerman Jan G.M. Bolscher C. René Leemans Bauke Ylstra Elisabeth Bloemena

Although rare, mucoepidermoid carcinoma (MEC) is one of the most common malignant salivary gland tumors. The presence of the t(11;19)(q21;p13) translocation in a subset of MECs has raised interest in genomic aberrations in MEC. In the present study we conducted genome-wide copy-number-aberration analysis by micro-array comparative-genomic-hybridization on 27 MEC samples.Low/intermediate-grade M...

Journal: :Head & neck 2014
Michelle M Chen Sanziana A Roman Julie A Sosa Benjamin L Judson

BACKGROUND Mucoepidermoid carcinoma (MEC) is an uncommon malignancy. To the best of our knowledge, this is the largest study investigating disease-specific survival (DSS) of parotid MEC and the first population-level study of the distribution of nodal metastases. METHODS Patients with MEC of the parotid gland were identified in the Surveillance, Epidemiology, and End Results (SEER) database (...

2014
HANG-EUN LEE EUN-SUN CHOI JI-AE SHIN SYNG-OOK LEE KI-SOO PARK NAM-PYO CHO SUNG-DAE CHO

Fucoidan is a sulfated polysaccharide present in brown algae that has been identified to exhibit multiple biological effects. In this study, the apoptotic effects of fucoidan in MC3 human mucoepidermoid carcinoma (MEC) cells were investigated. The apoptotic effects of fucoidan on MC3 MEC cells were evaluated by cell proliferation assay, 4',6-diamidino-2-phenylindole staining and western blot an...

Journal: :Head & neck 2015
Samuel Trosman Deborah Chute Benjamin Wood Eric Lamarre

BACKGROUND Mucoepidermoid carcinoma (MEC) is the most common malignant salivary gland tumor. The majority of MECs occur in major or intraoral minor salivary glands. Herein, we present a case of MEC metastatic to cervical lymph nodes with an unknown primary site and discuss diagnostic and treatment options. METHODS AND RESULTS The patient was a 43-year-old man who presented with a large right-...

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