Oil Red O
Oil Red O - Related Videos
02:44
Oil Red O Staining: A Technique for Staining Neutral Lipids in Hepatocytes for Detecting Hepatic Steatosis In Vitro
0 Views •
2025
In this video, we demonstrate in vitro staining of neutral lipids in hepatocytes to detect hepatic steatosis or excessive fat accumulation in liver. Excessive fat is accumulated in the cells in form of lipid droplets. Oil Red O is a lipid soluble dye that binds to intracellular neutral lipids in these lipid droplets. When observed under a light microscope, these intracellular lipid droplets appear intensely red in color.
07:46
Quantification of Lipid Abundance and Evaluation of Lipid Distribution in Caenorhabditis elegans by Nile Red and Oil Red O Staining
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Cited by 121 •
2018
Nile red staining of fixed Caenorhabditis elegans is a method for quantitative measurement of neutral lipid deposits, while oil red O staining facilitates qualitative assessment of lipid distribution among tissues.
13:19
Enhanced Oil Recovery using a Combination of Biosurfactants
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Cited by 2 •
2022
We illustrate the methods involved in screening and identification of the biosurfactant producing microbes. Methods for chromatographic characterization and chemical identification of the biosurfactants, determining the industrial applicability of the biosurfactant in enhancing residual oil recovery are also presented.
07:57
Imaging and Analysis of Oil Red O-Stained Whole Aorta Lesions in an Aneurysm Hyperlipidemia Mouse Model
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Cited by 7 •
2022
This protocol provides a step-by-step procedure to analyze atherosclerotic burden in mice. Investigators can use this protocol to compare the abundance, location, and size of atherosclerotic lesions in different animals.
01:23
Red Algae
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2025
Red algae, also known as rhodophytes, are primarily found in marine environments, though some species inhabit freshwater and terrestrial ecosystems. These organisms exist in both unicellular and multicellular forms, with some multicellular varieties reaching macroscopic sizes.As phototrophic organisms, red algae contain chlorophyll a; however, their chloroplasts lack chlorophyll b. Instead, they possess phycobiliproteins, which serve as major light-harvesting pigments, similar to those found in...
FAQs
The dye partitions into intracellular lipid droplets because its hydrophobic character favors the nonaqueous lipid environment. This selective localization creates a vivid red signal against cellular regions that contain little neutral lipid. As a result, microscopy can reveal both the presence of lipid storage and its distribution within individual cells or tissue regions.
Oil Red O has greater affinity for neutral lipid than for aqueous cellular components. Material outside lipid-rich regions therefore contributes relatively little to the red signal, creating visual contrast between droplets and the surrounding cell structure. This contrast helps investigators identify where lipid has accumulated rather than simply observing overall tissue coloration.
Staining intensity can provide qualitative or semi-quantitative evidence of differences in lipid accumulation. A stronger red signal may indicate greater neutral-lipid storage, while weaker staining may reflect less accumulation under the conditions examined. Interpretation should consider the signal together with its distribution, allowing researchers to assess changes associated with lipid storage and metabolism.
During cell differentiation, researchers can use changes in the amount and pattern of red staining to follow lipid accumulation. Increasingly prominent lipid droplets provide visual evidence that cells are storing more neutral lipid as their phenotype changes. Comparing staining across experimental conditions can therefore connect differentiation with altered lipid storage without relying only on cell appearance.
A basic application consists of exposing the biological sample to Oil Red O staining, then examining the resulting red signal microscopically. The analysis focuses on where staining appears and how strong it is across cells or tissue regions. Those observations can then support qualitative or semi-quantitative comparisons of neutral-lipid accumulation between samples.
In adipocyte research, staining makes intracellular lipid storage visible so investigators can examine adipocyte appearance and lipid droplet accumulation. Researchers may compare the extent or distribution of red signal among cells or experimental groups. This use is especially relevant when studying adipocyte differentiation or changes in cellular lipid storage and metabolism.
Oil Red O can reveal fat deposition in tissue, including lipid accumulation associated with hepatic steatosis. Microscopic examination shows the distribution of lipid-rich regions and provides staining-based evidence for comparing samples. Because the readout can be qualitative or semi-quantitative, it supports biological assessment of altered lipid storage in liver-related research.