نتایج جستجو برای: vivo

تعداد نتایج: 331386  

2015
Alicia Arranz Jorge Ripoll

Imaging approaches are an essential tool for following up over time representative parameters of in vivo models, providing useful information in pharmacological studies. Main advantages of optical imaging approaches compared to other imaging methods are their safety, straight-forward use and cost-effectiveness. A main drawback, however, is having to deal with the presence of high scattering and...

پایان نامه :دانشگاه تربیت معلم - تهران - پژوهشکده علوم زیستی 1392

مطالعات اخیراثبات کرده است که ترشح مایع مغزی نخاعی )csf (cerebrospinal fluid دربرخی شرایط نظیر هایپوناترمی، فشار داخل جمجمه ای، هیدروسفالی، ادم مغزی و میگرن افزایش می یابد. بخش اعظم csf توسط شبکه کوروئید موجود در بطن های مغزی ترشح میشود.aqp1,4دراغلب نواحی مغز بیان شده و یک نقش کلیدی در انتقال آب از طریق غشاء قاعده ای-جانبی سلولهای اپیتلیالی شبکه کوروئید ایفا میکنند. کورکومین از ریشه گیاه curcum...

Journal: :Molecules 2018
Hui Gao Xin Zhao Sijie Chen

In recent years, luminogens with the feature of aggregation-induced emission (AIEgen) have emerged as advanced luminescent materials for fluorescent nanomaterial preparation. AIEgen-based nanomaterials show enhanced fluorescence efficiency and superior photostability, which thusly offer unique advantages in biological applications. In this review, we will summarize the fabrication methods of AI...

Journal: :Postgraduate medical journal 2010
Christopher Burton Tasneem Irshad Aziz Sheikh

PURPOSE To investigate the experience of patients with perceived severe allergic disorders in obtaining allergen testing. DESIGN In-depth interviews with 20 purposively sampled adults and parents of children with, or at perceived risk of, serious allergic problems. Data were analysed thematically, drawing on Frank's classification of narratives to help interpret patient/career accounts. RES...

Journal: :EMBO reports 2012
Nathalie L Rochefort Arthur Konnerth

Dendritic spines arise as small protrusions from the dendritic shaft of various types of neuron and receive inputs from excitatory axons. Ever since dendritic spines were first described in the nineteenth century, questions about their function have spawned many hypotheses. In this review, we introduce understanding of the structural and biochemical properties of dendritic spines with emphasis ...

Journal: :Current opinion in biotechnology 2015
S Bouccara G Sitbon A Fragola V Loriette N Lequeux T Pons

Fluorescence imaging is a versatile tool for biological and preclinical studies with steady improvements in performance thanks to instrumentation and probe developments. The sensitive detection and imaging of deep targets in vivo is especially challenging due to the diffusion and absorption of light by the tissues and to the emission of autofluorescence from intrinsic chromophores. Fluorescent ...

Journal: :Chemical communications 2010
Animesh Samanta Marc Vendrell Rajkumar Das Young-Tae Chang

With the emerging interest in optical in vivo imaging, there is an increasing demand of photostable near-infrared (NIR) dyes. Herein we report the rational design of an amine tricarbocyanine structure with improved photostability (CyNA) and its combinatorial derivatization to render CyNA-414 as a NIR-fluorescent dye with stronger emission intensity and higher photostability than the NIR standar...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
Scott T Laughlin Carolyn R Bertozzi

Molecular imaging enables visualization of specific molecules in vivo and without substantial perturbation to the target molecule's environment. Glycans are appealing targets for molecular imaging but are inaccessible with conventional approaches. Classic methods for monitoring glycans rely on molecular recognition with probe-bearing lectins or antibodies, but these techniques are not well suit...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Christopher N Topp Anjali S Iyer-Pascuzzi Jill T Anderson Cheng-Ruei Lee Paul R Zurek Olga Symonova Ying Zheng Alexander Bucksch Yuriy Mileyko Taras Galkovskyi Brad T Moore John Harer Herbert Edelsbrunner Thomas Mitchell-Olds Joshua S Weitz Philip N Benfey

Identification of genes that control root system architecture in crop plants requires innovations that enable high-throughput and accurate measurements of root system architecture through time. We demonstrate the ability of a semiautomated 3D in vivo imaging and digital phenotyping pipeline to interrogate the quantitative genetic basis of root system growth in a rice biparental mapping populati...

Journal: :Gut 2003
B Tavitian

Molecular imaging, the science that combines non-invasive in vivo imaging and molecular biology, has begun to use labelled oligonucleotides as radiotracers. Antisense oligonucleotides target gene expression at the RNA level, while aptamer oligonucleotides are designed to hit proteins of interest. Oligonucleotides for imaging cover a large range of applications, from the invention of new contras...

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