Related Experiment Video
Updated: Jan 28, 2026

08:07
Paradigms of Lower Extremity Electrical Stimulation Training After Spinal Cord Injury
Published on: February 1, 2018
13.2K
Digit Tip Injuries: Current Treatment and Future Regenerative Paradigms
Travis J Miller1,2, Peter L Deptula1, Gregory M Buncke2
1Department of Surgery, Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, CA 94304, USA.
Stem Cells International
|February 27, 2019
Summary
Mammals, including humans, can regenerate digit tips, a capacity observed in simpler organisms. However, applying regenerative medicine for clinical digit amputation treatment remains a challenge.
Area of Science:
- Regenerative medicine
- Developmental biology
- Tissue engineering
Background:
- Understanding of tissue regeneration has grown significantly, inspired by lower organisms like hydra and urodeles.
- Mammals possess inherent regenerative abilities, notably the capacity for distal phalange regeneration after digit amputation.
Purpose of the Study:
- To review the current knowledge of digit tip regeneration.
- To identify barriers in translating regenerative medicine into clinical practice for digit amputation injuries.
Main Methods:
- Literature review of studies on tissue regeneration and digit tip healing.
- Analysis of regenerative paradigms in model organisms and mammals.
- Discussion of clinical applications and challenges in regenerative medicine for digit injuries.
Main Results:
- While lower life forms exhibit extensive regeneration, mammals retain limited but significant regenerative capacity in digit tips.
- A knowledge gap exists between regenerative medicine research and its clinical implementation for digit amputation.
Conclusions:
- Further research is needed to bridge the gap between understanding digit regeneration and its clinical application.
- Translating regenerative medicine strategies into effective treatments for digit amputation requires addressing current limitations.
Related Concept Videos
Electrical Current
7.1K
Electrical current is defined as the rate at which charge flows. When there is a large current present, such as that used to run a refrigerator, a large amount of charge moves through the wire in a small amount of time. If the current is small, such as that used to operate a handheld calculator, a small amount of charge moves through the circuit over a long period of time. The SI unit for current is the ampere (A), named for the French physicist André-Marie Ampère (1775–1836).
7.1K
Current Density
5.1K
The total amount of current flowing through one unit value of a cross-sectional area is referred to as current density. If the current flow is uniform, the amount of current flowing through a conductor is the same at all points along the conductor, even if the conductor area varies. The current density consists of the local magnitude and direction of the charge flow, which varies from point to point. Current density is measured in amperes per meter square, and direction is defined as the net...
5.1K
Eddy Currents
2.6K
Since eddy currents occur only in conductors, magnets can separate metals from other materials. For example, in a recycling center, trash is dumped in batches down a ramp, beneath which lies a powerful magnet. Conductors in the trash are slowed by eddy currents, while nonmetals in the trash move on, separating from the metals. This works for all metals, not just ferromagnetic ones.
Other major applications of eddy currents appear in metal detectors and the braking systems of trains and roller...
Other major applications of eddy currents appear in metal detectors and the braking systems of trains and roller...
2.6K
Displacement Current
3.8K
Ampère's law, in its usual form, does not work in places where the current changes with time and is not steady. Thus, Maxwell suggested including an additional contribution, called the displacement current, Id, to the real conduction current I.
3.8K
Charge and Current
5.5K
Electric charge is the most fundamental quantity in an electric circuit. The effects of electric charge are encountered daily, such as when a wool sweater sticks to the human body or when a person receives a shock while walking on a carpet.
Charge is an inherent property of the atomic particles that make up matter and is measured in units called coulombs (C). Matter is composed of atoms, each consisting of electrons, protons, and neutrons. Electrons have a negative charge (-e), while protons...
Charge is an inherent property of the atomic particles that make up matter and is measured in units called coulombs (C). Matter is composed of atoms, each consisting of electrons, protons, and neutrons. Electrons have a negative charge (-e), while protons...
5.5K
Current Dividers
1.0K
In parallel electrical connections, resistors are linked between the same pair of nodes, creating an equal voltage across each resistor. Kirchhoff's current law is applied to these connections, establishing that the sum of currents through these resistors equals the source current. Utilizing Ohm's law, the source current is determined as the product of the source voltage and the sum of the reciprocals of individual resistances. This relationship simplifies the process of finding the current...
1.0K

