Cord Lining

Cord lining is the fetal-derived epithelial covering of the umbilical cord, a specialized tissue that helps connect developmental biology with cell-based research. Its surface cells are supported by an underlying extracellular matrix and can be isolated, expanded in culture, and evaluated for markers of epithelial identity, differentiation, and tissue compatibility. Because cord lining is obtained from a normally discarded perinatal tissue, it provides an accessible model for studying cell development and a potential source of cells for regenerative medicine, biomaterials, wound repair, and tissue engineering. Research on this tissue also supports investigations into how fetal cells retain developmental and repair-associated properties.

Cord Lining - Related Videos

Research

JoVE Journal - Medicine

Acute and Chronic Tactile Sensory Testing after Spinal Cord Injury in Rats

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Cited by 55 •

2012

We describe two tactile sensory testing methods for acute or chronic periods of spinal cord injury in rats. These validated procedures can detect the development and maintenance of allodynia-like sensations.

Research

JoVE Journal - Bioengineering
Free Sample

Training Persons with Spinal Cord Injury to Ambulate Using a Powered Exoskeleton

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Cited by 58 •

2016

Training a person with paralysis to ambulate using a powered exoskeleton may present challenges. The goals are to present the candidate selection criteria and the training procedures for exoskeletal-assisted walking and other mobility skills that can be progressed as the participant's skill level improves.

Spinal Cord Electrophysiology

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Cited by 5 •

2010

A demonstration of the isolation of neonatal mouse spinal cord for electrophysiologic studies.

Education

JoVE Core - Electrical Engineering

Lossless Lines

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2024

In electrical engineering, a lossless transmission line is characterized by a purely imaginary propagation constant and a resistive characteristic impedance. The ABCD parameters, which describe the relationship between the input and output voltages and currents, indicate an equivalent π circuit with an imaginary series impedance and a shunt admittance. This results in a transmission line that, when the product of the phase constant (beta) and the length of the line is less than pi, exhibits...

Lines in Space

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2026

In three-dimensional analytic geometry, a line can be fully described using vector equations when both a point on the line and its direction are known. This approach has practical applications in fields such as engineering and surveying, where precise spatial modeling is essential. For instance, a laser beam from a surveying instrument directed across a construction site can be modeled mathematically as a line using vectors.Let the laser beam originate from a known point P₀, represented by the...

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