Aldehyde Metabolism
Aldehyde Metabolism - Related Videos
05:41
Metabolic Profile Analysis of Zebrafish Embryos
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Cited by 42 •
2013
Zebrafish represent a powerful vertebrate model that has been under-utilised for metabolic studies. Here we describe a rapid way to measure the in vivo metabolic profile of developing zebrafish that allows the comparison of different mitochondrial function parameters between genetically or pharmacologically manipulated embryos, thereby increasing the applicability of this organism.
03:09
Identification of Unknown Aldehydes and Ketones - Concepts
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2020
Aldehydes and Ketones Aldehydes and ketones have a carbonyl group (C=O) as a functional group. A ketone has two alkyl or aryl groups attached to the carbonyl carbon (RCOR’). The simplest ketone is acetone, which has two methyl groups attached to the carbonyl carbon (CH3COCH3). An aldehyde is similar to a ketone, except that instead of two side groups connected to the carbonyl carbon, they have at least one hydrogen (RCOH). The simplest aldehyde is formaldehyde (HCOH), as it has two hydrogens...
15:03
Identification of Unknown Aldehydes and Ketones - Student Protocol
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2020
Source: Lara Al Hariri and Ahmed Basabrain at the University of Massachusetts Amherst, MA, USA DNPH Test for Aromatic Aldehydes and KetonesExpand In this lab, you'll use the DNPH test, the Tollens' test, and the iodoform test to identify two unknown aldehydes or ketones. You'll use butanone and benzaldehyde as known compounds to confirm that the tests are working as expected. You'll start the lab with the DNPH test, which relies on the reaction between 2,4-dinitrophenylhydrazine, or DNPH,...
01:04
Structures of Aldehydes and Ketones
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2023
Vanillin—a flavoring agent in vanilla, cinnamaldehyde—a molecule responsible for the distinct smell of cinnamon, and acetone—a strong-smelling ingredient in nail polish removers, all belong to a class of carbonyl compounds called aldehydes and ketones (Figure 1). Although both aldehydes and ketones contain the characteristic carbonyl (C=O) bond, their chemical structures vary with respect to the groups directly attached to the carbonyl carbon. In aldehydes (Figures 1a and 1b), the carbonyl...
01:16
IUPAC Nomenclature of Aldehydes
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2023
Aldehydes are named based on the systematic nomenclature rules set by the IUPAC. For acyclic aldehydes, the longest carbon chain containing the aldehydic (–CHO) group is considered the parent chain. The aldehyde is named by replacing the last letter “e” in the hydrocarbon name with “al”. For instance, a simple, seven-carbon-membered acyclic aldehyde is called heptanal, derived from heptane. The carbon chain is numbered starting from the aldehydic carbon, although the aldehydic carbon’s locant...
FAQs
NAD+ or NADP+ serves as the cofactor that supports aldehyde oxidation by aldehyde dehydrogenases. This reaction converts a reactive aldehyde into a carboxylic acid, changing both its chemical reactivity and biological effect. The available cofactor therefore helps determine how efficiently cells regulate aldehyde levels and maintain signaling balance during tissue development.
The enzyme pathway largely determines the product. Aldehyde dehydrogenases oxidize aldehydes to carboxylic acids, whereas reductases convert them to alcohols. These alternative reactions can produce different cellular consequences because they remove or reshape reactive aldehydes in distinct ways. Their relative activity influences which compounds accumulate and how chemical signals are regulated.
Retinal metabolism helps control the supply of retinoic acid precursors, linking aldehyde processing to developmental signaling. Changes in this metabolic step can alter the levels of compounds that guide embryonic patterning and cell differentiation. Consequently, enzyme activity does more than protect cells from chemical stress: it also helps establish when and where developmental signals act.
Altered enzyme activity can disturb the concentration of aldehydes and retinoid-related compounds available to developing tissues. Because these compounds influence signaling, changes in their metabolism may shift embryonic patterning, differentiation, or tissue formation. The developmental outcome depends on how strongly the pathway is disrupted and which tissues rely on its regulation during formation.
The pathway is closely associated with embryonic patterning, cell differentiation, and tissue formation through its effects on retinoid signaling. These processes require regulated chemical cues as developing cells acquire identities and organize into tissues. Studying aldehyde metabolism therefore provides a way to connect enzyme activity with broader developmental outcomes rather than viewing metabolism only as cellular protection.
Researchers can consider aldehyde metabolism when developmental abnormalities involve disrupted signaling or tissue formation. Reduced or altered enzyme activity may change retinoid-related signals during embryogenesis, potentially contributing to congenital abnormalities or disease. Examining this pathway helps relate a biochemical change to developmental consequences, especially when patterning and differentiation are affected.