Acetaldehyde
Overview
Acetaldehyde is a highly reactive, water-soluble aldehyde that is produced naturally in the body during the metabolism of Ethanol (Alcohol). It is also present in tobacco smoke, some foods and beverages, and can be produced by microorganisms in the mouth and gastrointestinal tract.
Acetaldehyde can react with DNA, proteins, and other cellular molecules, producing chemical modifications known as adducts. These reactions can alter the structure or function of biological molecules and may contribute to oxidative stress, cellular injury, DNA damage, and cancer development.
Toxic Effects of Acetaldehyde
Acetaldehyde is the actual chemical responsible for many of the toxic effects of Alcohol - it is approximately thirty times more toxic than Alcohol.
Alcohol & Alcoholism
Acetaldehyde is produced almost immediately when the body begins metabolizing Alcohol (alcoholics are impaired in their ability to convert Acetaldehyde to Acetic Acid).
Acetaldehyde is speculated to be responsible for many of the symptoms of Hangovers. [1]
Cardiovascular System
Acetaldehyde readily combines with the Proteins that comprise the Cell Membranes of Red Blood Cells. This may cause the “stiffening” of the Cell Membranes of Red Blood Cells. This process reduces the “deformability” of Red Blood Cells, inhibiting their ability to enter Capillaries, subsequently reducing the ability of Capillaries to supply Oxygen to various organs of the body. In addition, Acetaldehyde combines with Hemoglobin in Red Blood Cells, which further inhibits their ability to accept, hold, and transport Oxygen via the bloodstream. [2]
Acetaldehyde is responsible for many of Alcohol's toxic effects on the Heart.
Cells
Acetaldehyde readily combines with the Proteins that comprise the Cell Membranes of Red Blood Cells. This may cause the “stiffening” of the Cell Membranes of Red Blood Cells. [3]
Acetaldehyde may inhibit tubulin's ability to assemble into Microtubules. [4]
Metabolism
Acetaldehyde is a potent initiator of Cross-Linking and initiates the production of Free Radicals. [5]
Acetaldehyde may interfere with cellular Energy production (by depleting Acetyl Coenzyme A and Vitamin B3). [6]
Acetaldehyde may cause Lethargy. [7]
Acetaldehyde may cause Liver damage.
Nervous System
Acetaldehyde may cause Anxiety. [8]
Acetaldehyde may cause Apathy. [9]
Acetaldehyde may reduce Concentration ability. [10]
Acetaldehyde may cause Depression. [11]
Acetaldehyde may cause Irritability. [12]
Acetaldehyde may cause Memory impairment. [13]
Acetaldehyde damages the Neurons of the Brain:
Acetaldehyde may cause the death of Dendrites (by interfering with the incorporation of Tubulin into the Microtubules of the Dendrites of Neurons). [14]
Acetaldehyde may cause Panic Disorder. [15]
Acetaldehyde may cause slowed Reflexes. [16]
Acetaldehyde may interfere with these Substances
Coenzymes
Acetaldehyde may interfere with and cause the depletion of Acetyl Coenzyme A. [17]
Elements
Acetaldehyde readily combines with the Proteins that comprise the Cell Membrane of Red Blood Cells. This causes the “stiffening” of the Cell Membranes of Red Blood Cells. This process reduces the “deformability” of Red Blood Cells, inhibiting their ability to enter Capillaries, subsequently reducing the ability of Capillaries to supply Oxygen to various organs of the body. In addition, Acetaldehyde combines with Hemoglobin in Red Blood Cells, which further inhibits their ability to accept, hold, and transport Oxygen via the bloodstream. [18]
Enzymes
Acetaldehyde destroys Delta-6-Desaturase (the enzyme that catalyzes the conversion of Linoleic Acid to Gamma-Linolenic Acid (GLA)). [19]
Lipids
Acetaldehyde prevents the conversion of Linoleic Acid to Gamma-Linolenic Acid (GLA) by destroying the Delta-6-Desaturase enzyme that catalyzes the conversion of Linoleic Acid to Gamma-Linolenic Acid. [20]
Neurotransmitters
Acetaldehyde reacts with certain Neurotransmitters, leading to the production of Isoquinoline Alkaloids.
Vitamins
Acetaldehyde destroys Folic Acid. [21]
Acetaldehyde destroys Vitamin B1. [22]
Acetaldehyde can cause Vitamin B3 deficiency. [23]
Acetaldehyde prevents the conversion of dietary (and supplemental) Vitamin B6 to its active endogenous form (i.e., to Pyridoxal-5-Phosphate). [24]
Acetaldehyde destroys Vitamin C. [25]
These Substances Stimulate the Production of Acetaldehyde
Enzymes
Alcohol Dehydrogenase catalyzes the conversion of Alcohol to Acetaldehyde.
These Substances may facilitate the Detoxification of Acetaldehyde
Amino Acids
The Sulfhydryl Group of Sulfur-containing Antioxidants (e.g. Cysteine [26] and Glutathione [27]) interacts with Aldehydes such as Acetaldehyde and may prevent them from initiating Cross-Linking.
Methionine may lower circulating Acetaldehyde levels following Alcohol (ethanol) ingestion. [28]
N-Acetyl-Cysteine (NAC) may bind to Acetaldehyde and may reduce the toxicity of Acetaldehyde. [29]
Taurine may reduce the toxicity of Acetaldehyde. This effect occurs when Taurine activates the Aldehyde Dehydrogenase enzyme, which accelerates the clearance of Acetaldehyde from the body. Studies have shown that Taurine may inhibit the rise in plasma Acetaldehyde levels that normally result from Alcohol consumption. [30]
Enzymes
Acetaldehyde Dehydrogenase catalyzes the conversion of Acetaldehyde to Acetic Acid. [31]
Cytochrome P-450 breaks down Acetaldehyde.
Vitamins
Vitamin B1 may facilitate the detoxification of Acetaldehyde. [22]
Vitamin B3 (Niacinamide form) may reduce Acetaldehyde levels. [32]
Vitamin B5 (Pantethine form) may stimulate the detoxification of Acetaldehyde (by increasing the activity of the Aldehyde Dehydrogenase enzyme). [33]
Vitamin C (when combined with Cysteine and Vitamin B1) may protect against the toxic effects of Acetaldehyde and facilitate its breakdown in the body. [34]
These Foods/Herbs may Help to Detoxify Acetaldehyde
Herbs
Kudzu may facilitate the elimination of Acetaldehyde from the body. [35]
Vegetables
Garlic - Aged Extract may reduce the toxic effects of Acetaldehyde. [36]
Sources of Acetaldehyde
Environmental Toxins
Acetaldehyde is often a component of Air Pollution.
Recreational Substances
The primary source of Acetaldehyde is from the oxidation of Alcohol (ethanol) within the Liver after consumption of Alcoholic Beverages.
Acetaldehyde is a component of Tobacco Smoke.
These Substances may increase the Endogenous Production of Acetaldehyde
Microorganisms
Candida albicans proliferation causes the fermentation of Simple Sugars; a toxic by-product of this fermentation is Acetaldehyde. [37]
Related Topics
References
This is one of more than 5,000 interlinked topics in the Green Medicine Encyclopedia.
Explore the full encyclopedia free