SPHINGOMYELIN Meaning and
Definition
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Sphingomyelin is a type of complex lipid found in the cell membranes of various animals and plants. It is composed of a molecule called sphingosine, which is an amino alcohol, and a fatty acid. The presence of this lipid in the cell membrane helps to maintain its structural integrity and plays a crucial role in the overall organization and function of the membrane.
One of the distinguishing characteristics of sphingomyelin is the presence of a phosphate group attached to the sphingosine molecule. This phosphate group allows sphingomyelin to interact with other molecules within the cell membrane, such as cholesterol and proteins, forming stable membrane structures.
Functionally, sphingomyelin is involved in a variety of cellular processes. It acts as a signaling molecule, facilitating various cellular events such as cell differentiation, growth, and apoptosis (programmed cell death). Sphingomyelin also contributes to the insulation and electrical conductivity of nerve fibers, as it is an essential component of the myelin sheath - the protective covering surrounding nerve cells.
In addition to its role in cellular functions, sphingomyelin has been implicated in several diseases. Abnormal sphingomyelin metabolism has been associated with neurodegenerative disorders, such as Niemann-Pick disease and schizophrenia. Understanding the properties and functions of sphingomyelin is crucial for further research and the development of potential therapeutic interventions targeting these conditions.
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A phosphatide in protagon.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for SPHINGOMYELIN
- aphingomyelin
- zphingomyelin
- xphingomyelin
- dphingomyelin
- ephingomyelin
- wphingomyelin
- sohingomyelin
- slhingomyelin
- s-hingomyelin
- s0hingomyelin
- spgingomyelin
- spbingomyelin
- spningomyelin
- spjingomyelin
- spuingomyelin
- spyingomyelin
- sphungomyelin
- sphjngomyelin
- sphkngomyelin
- sphongomyelin
Etymology of SPHINGOMYELIN
The word "sphingomyelin" has its etymology rooted in Greek and Latin. "Sphingo-" comes from the Greek word "sphínx" (σφίγξ), meaning "sphinx" or "mythical creature". "Myelin" comes from the Greek word "mýelos" (μυελός), meaning "marrow" or "substance within bones". The combining form "-in" is derived from the Latin suffix "-inus", which often indicates a substance or related to a substance. Therefore, "sphingomyelin" combines these elements to describe a type of lipid or fatty substance found in certain tissues, particularly nerve sheaths.
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