Outer Root Sheath
Outer Root Sheath - Related Videos
12:17
Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
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Cited by 4 •
2017
Full-root aortic valve replacement by stentless aortic xenograft is a viable option in patients with small aortic roots. We describe, a technique for the full-root implantation of stentless aortic xenografts, with emphasis on the management of the proximal suture line and coronary anastomoses, and discuss its limitations and alternative options.
11:06
Method for the Isolation of Francisella tularensis Outer Membranes
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Cited by 11 •
2010
A protocol for separating inner and outer membranes from Francisella tularensis by spheroplasting, osmotic lysis, and sucrose density gradient ultracentrifugation.
13:54
Time-lapse Fluorescence Imaging of Arabidopsis Root Growth with Rapid Manipulation of The Root Environment Using The RootChip
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Cited by 43 •
2012
This article provides a protocol for cultivation of Arabidopsis seedlings in the RootChip, a microfluidic imaging platform that combines automated control of growth conditions with microscopic root monitoring and FRET-based measurement of intracellular metabolite levels.
03:47
Separation of Inner and Outer Membrane Fractions of Gram-Negative Bacteria
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2025
Source: Cian, M. B. et. al., Separation of the Cell Envelope for Gram-negative Bacteria into Inner and Outer Membrane Fractions with Technical Adjustments for Acinetobacter baumannii. J. Vis. Exp. (2020)This video demonstrates the separation of the inner and outer membrane fractions of Gram-negative bacteria using sucrose gradient ultracentrifugation. The membrane fractions are purified and stored at low temperatures for targeted analysis of membrane-specific components.
09:23
Lateral Root Inducible System in Arabidopsis and Maize
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Cited by 8 •
2016
The Lateral Root Inducible System (LRIS) allows for synchronous induction of lateral roots and is presented for Arabidopsis thaliana and maize.
FAQs
Signals from the follicle niche influence the behavior of stem and progenitor cells in the outer root sheath. These cells can proliferate and migrate when the follicle undergoes remodeling, allowing them to contribute to renewed hair production. This signal-responsive behavior makes the sheath useful for studying how local tissue environments control epithelial regeneration.
Stem cells provide a regenerative reserve, while progenitor cells can respond to follicle-niche signals and participate in active tissue renewal. Considering both populations helps researchers distinguish long-term regenerative capacity from cells recruited during follicle remodeling. Their coordinated activity provides a framework for understanding how epithelial tissues maintain and rebuild themselves over the hair cycle.
The connection places the outer root sheath at an interface between the hair follicle and epidermis. This relationship is relevant because the sheath contributes structural support while also participating in epithelial renewal. Studying that interface helps clarify how skin-associated epithelial tissues remain connected during follicle remodeling and how their regenerative behaviors may be related.
Investigations of the outer root sheath can reveal how epithelial stem and progenitor cells respond to signals, expand, and migrate within a tissue context. The system links cellular behavior with visible processes such as follicle remodeling and hair production. It therefore offers a way to examine regeneration as an interaction between cells and their local niche.
Its regenerative cell populations make the outer root sheath relevant to research on how epithelial tissues repair themselves. Studying the signals that activate proliferation and migration may clarify principles of tissue renewal that also matter in wound repair. The connection with the epidermis further supports its use for examining regeneration across skin-associated epithelial structures.
Research on this tissue can connect cellular mechanisms with problems involving hair production, follicle development, and hair loss. By examining how niche signals control regenerative cells during follicle remodeling, scientists can better understand where renewal succeeds or fails. These insights also inform broader strategies for regenerative medicine involving epithelial tissues and tissue repair.