نتایج جستجو برای: nb
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BACKGROUND Neuroblastoma (NB) is the most common extracranial solid tumor in childhood and displays remarkable heterogeneity in clinical behaviors, ranging from spontaneous regression to rapid progression or resistance to multimodal treatment. Recent evidence has shown that microRNAs (miRNAs), a class of small non-coding RNAs, are involved in tumor development and progression. This article aime...
زمینه و هدف: پسوریازیس یک بیماری مزمن و التهابی با شیوع 4.8% - 0.6% در جامعه است. هدف ما در این مطالعه، مقایسه ی تأثیر nb-uvb (به عنوان یکی از روش های درمانی شایع) بر روی فلور نرمال موجود بر پلاک های پسوریاتیک و پوست سالم بود. روش اجرا: 20 بیمار مبتلا به پسوریازیس که فاقد کنترااندیکاسیون های فتوتراپی بودند، وارد مطالعه شدند. از پلاک های پسوریاتیک و پوست سالم ناحیه ی مجاور پلاک، قبل و بعد از فتو...
Narrowband Internet of Things (NB-IoT) is a new cellular technology introduced in 3GPP Release 13 for providing wide-area coverage for the Internet of Things (IoT). This article provides an overview of the air interface of NB-IoT. It describes how NB-IoT addresses key IoT requirements such as deployment flexibility, low device complexity, long battery life time, support of massive number of dev...
We demonstrate spin injection into superconducting Nb by employing a spin absorption technique in lateral spin valve structures. Spin currents flowing in a nonmagnetic Cu channel are preferably absorbed into Nb due to its strong spin-orbit interaction, the amount of which dramatically changes below or above the superconducting critical temperature (TC). The charge imbalance effect observed in t...
Objectives: To investigate the value of second-trimester ultrasound assessment of fetal nasal bone (NB) in predicting trisomy 21. Methods: A retrospective analysis was performed on the test results of pregnant women who received amniocentesis besides their anomaly scan due to various reasons at the Prenatal Diagnosis Center of Fudan University Obstetrics & Gynecology Hospital from January 2012 ...
BACKGROUND/AIM Neuroblastoma (NB) is the most common and lethal extracranial solid tumor in children. The present study aimed to verify that the heparin-binding epidermal growth factor-like growth factor (HB-EGF) is a rational target in NB therapy. MATERIAL AND METHODS We examined expression of EGFR ligands in four NB cell lines using 2-dimensional culture (DC) and 3DC conditions. To assess t...
Neuroblastoma (NB), the most frequent solid tumor of early childhood, is diagnosed as a disseminated disease in >60% of cases, and several lines of evidence support the resistance to apoptosis as a prerequisite for NB progression. We show that autocrine production of netrin-1, a multifunctional laminin-related molecule, conveys a selective advantage in tumor growth and dissemination in aggressi...
The nucleus basalis (NB) mediates cortical electroencephalograph (EEG) activation; NB stimulation also modulates cortical responses to sensory stimuli and can induce learning-related receptive field plasticity. However, little is known about the behavioral effects of NB stimulation. This study concerns the effects of NB stimulation on cardiac and respiratory behavior and quantifies its EEG effe...
Neuroblastoma (NB) is a childhood cancer arising from sympatho-adrenal neural crest cells. Disseminated forms have high frequency of multiple tumoral foci whose etiology remains unknown; NB embryonic origin limits investigations in patients and current models. We developed an avian embryonic model driving human NB tumorigenesis in tissues homologous to patients. We found that aggressive NBs dis...
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