Av Marker
Av Marker - Related Videos
05:17
Hybrid PET/MRI Imaging of Alzheimer's Disease Based on 18F-AV-1451
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Cited by 1 •
2025
This protocol describes the use of 18F-AV-1451 PET/MRI to reveal tau pathology and neurodegeneration, aiding neurologists in diagnosing Alzheimer's disease, assessing its severity, and gaining insights into its progression and underlying pathological mechanisms.
08:53
The Arteriovenous (AV) Loop in a Small Animal Model to Study Angiogenesis and Vascularized Tissue Engineering
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Cited by 38 •
2016
We describe a microsurgical approach for the generation of an arteriovenous (AV) loop as a model for analyzing vascularization in vivo in an isolated and well-characterized environment. This model is not only useful for the investigation of angiogenesis, but is also optimally suited for engineering axially vascularized and transplantable tissues.
07:13
Multimodal Cross-Device and Marker-Free Co-Registration of Preclinical Imaging Modalities
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Cited by 3 •
2023
The combination of multiple imaging modalities is often necessary to gain a comprehensive understanding of pathophysiology. This approach utilizes phantoms to generate a differential transformation between the coordinate systems of two modalities, which is then applied for co-registration. This method eliminates the need for fiducials in production scans.
12:03
The Production of C. elegans Transgenes via Recombineering with the galK Selectable Marker
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Cited by 4 •
2011
The ability to produce transgenes for Caenorhabditis elegans using genomic DNA carried by fosmids is particularly attractive as all of the native regulatory elements are retained. Described is a simple and robust procedure for the production of transgenes via recombineering with the galK selectable marker.
06:05
Development of a Negative Selectable Marker for Entamoeba histolytica
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Cited by 3 •
2010
We report development of a negative selection system in E. histolytica based upon transgenic expression of a chimeric protein (FCU1) and selection with the prodrug 5-fluorocytosine. The FCU1 protein is a fusion of yeast cytosine deaminase and uracil phosphoribosyltransferase. Expression of FCU1 resulted in increased E. histolytica sensitivity towards 5-fluorocytosine.
FAQs
Molecular markers identify localized gene or protein expression, whereas anatomical markers indicate the physical position or structure of the atrioventricular region. Using both types connects regional identity with heart morphology. This comparison helps determine whether a developing tissue has acquired the expected molecular characteristics, anatomical organization, or both during chamber separation and valve formation.
Localized expression shows that developmental signals are restricted to particular cardiac regions rather than distributed uniformly throughout the heart. This regional information is relevant to atrioventricular canal formation, valve development, and electrical conduction between the atria and ventricles. Changes in the location or intensity of marker expression can therefore indicate altered regional identity during development.
AV marker patterns can help researchers track the descendants of cardiac cells and distinguish specialized tissues from neighboring heart regions. Following these patterns across developmental changes provides evidence about how cells contribute to the atrioventricular region and its associated structures. The approach is particularly useful when comparing normal development with altered tissue organization or signaling.
Disrupted expression may signal that atrioventricular regional identity or its associated developmental signaling has changed. Because the region contributes to chamber separation, valve development, and conduction, abnormal marker patterns can help connect molecular or anatomical changes with defects in heart structure or function. Such comparisons support investigations of mechanisms underlying congenital heart abnormalities.
Researchers examine AV marker features in model organisms and cultured cells to evaluate developmental changes and identify specialized cardiac tissues. The analysis can compare marker-associated regional identity across experimental conditions or stages. These systems allow investigators to study how cardiac cells develop, whether expected atrioventricular characteristics appear, and how altered signaling affects those patterns.
They are useful when researchers need to determine whether cells or tissues show characteristics of the atrioventricular region during regeneration studies or disease modeling. Marker analysis can reveal changes in regional identity and specialized tissue features, helping relate cellular behavior to heart structure and function. This information supports evaluation of developmental abnormalities, disease processes, and regenerative responses.