The relation of nerves to multiple regeneration in a single newt limb

The Journal of Experimental Zoology
L C Eiland

Abstract

Three amputation surfaces were formed on the lower arm of a single newt. Growth occurred on all combinations of these surfaces. The proximal surface (the only single surface to form regenerates) produced more regenerates (76% of the cases) than the two more distal surfaces. Blocking the proximal surface with whole skin greatly stimulates the production of accessory structures on the first and/or second more distal surfaces. The mean number of nerve fibers on the proximal surface is considerably higher than the nerve counts of the first more and second most distal surfaces. Limbs possessing a notch or digit(s) on the proximal surface and the absence of growth on the first more and second distal surfaces also show a decrease in nerve number on the first more and second most distal surfaces. An analysis of the mean number of nerve fibers on the blocked (proximal) surface shows a noticeable decrease in comparison with nerve fibers in an equivalent level on normal limbs. Nerve fiber counts on the first more and second most distal surfaces are markedly increased on those limbs where the proximal surface was blocked with whole skin. Threshold experiments suggest that the irregular occurrence of accessory structures on the first more d...Continue Reading

References

May 1, 1970·American Zoologist·C S Thornton
May 1, 1971·The Journal of Experimental Zoology·C Tweedle
Mar 1, 1963·Developmental Biology·M SINGER, E MUTTERPERL
Oct 1, 1963·American Journal of Physical Medicine·E GUTMANN
Jun 1, 1952·The Quarterly Review of Biology·M SINGER
Dec 1, 1930·Wilhelm Roux' Archiv Für Entwicklungsmechanik Der Organismen·N V Nassonov
Dec 1, 1930·Wilhelm Roux' Archiv Für Entwicklungsmechanik Der Organismen·W Kasanzeff
Oct 1, 1928·Wilhelm Roux' Archiv Für Entwicklungsmechanik Der Organismen·Emil Godlewski

❮ Previous
Next ❯

Citations

Jun 1, 1977·The Journal of Experimental Zoology·R B BorgensL F Jaffe
Jul 30, 2002·Pediatric Allergy and Immunology : Official Publication of the European Society of Pediatric Allergy and Immunology·E LanneröS L Nordvall

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Annals of the New York Academy of Sciences
I Yasuda
Annals of the New York Academy of Sciences
Z B Friedenberg, C T Brighton
Annals of the New York Academy of Sciences
B BakerR O Becker
Annals of the New York Academy of Sciences
C T Brighton, Z B Friedenberg
© 2022 Meta ULC. All rights reserved