4413 Glutaric acid Glutaric acid is a simple five-carbon linear dicarboxylic acid. Glutaric acid is naturally produced in the body during the metabolism of some amino acids, including lysine and tryptophan. Glutaric acid may cause irritation to the skin and eyes. When present in sufficiently high levels, glutaric acid can act as an acidogen and a metabotoxin. An acidogen is an acidic compound that induces acidosis, which has multiple adverse effects on many organ systems. A metabotoxin is an endogenously produced metabolite that causes adverse health effects at chronically high levels. Chronically high levels of glutaric acid are associated with at least three inborn errors of metabolism, including glutaric aciduria type I, malonyl-CoA decarboxylase deficiency, and glutaric aciduria type III. Glutaric aciduria type I (glutaric acidemia type I, glutaryl-CoA dehydrogenase deficiency, GA1, or GAT1) is an inherited disorder in which the body is unable to completely break down the amino acids lysine, hydroxylysine, and tryptophan due to a deficiency of mitochondrial glutaryl-CoA dehydrogenase (EC 1.3.99.7, GCDH). Excessive levels of their intermediate breakdown products (e.g. glutaric acid, glutaryl-CoA, 3-hydroxyglutaric acid, glutaconic acid) can accumulate and cause damage to the brain (and also other organs). Babies with glutaric acidemia type I are often born with unusually large heads (macrocephaly). Macrocephaly is amongst the earliest signs of GA1. GA1 also causes secondary carnitine deficiency because glutaric acid, like other organic acids, is detoxified by carnitine. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis. Acidosis typically occurs when arterial pH falls below 7.35. In infants with acidosis, the initial symptoms include poor feeding, vomiting, loss of appetite, weak muscle tone (hypotonia), and lack of energy (lethargy). These can progress to heart, liver, and kidney abnormalities, seizures, coma, and possibly death. These are also the characteristic symptoms of untreated glutaric aciduria. Many affected children with organic acidemias experience intellectual disability or delayed development. In adults, acidosis or acidemia is characterized by headaches, confusion, feeling tired, tremors, sleepiness, and seizures. Treatment of glutaric aciduria is mainly based on the restriction of lysine intake, supplementation of carnitine, and an intensification of therapy during intercurrent illnesses. The major principle of dietary treatment is to reduce the production of glutaric acid and 3-hydroxyglutaric acid by restriction of natural protein, in general, and of lysine, in particular (PMID: 17465389, 15505398). 110-94-1 743 C5H8O4 White powder. 95.8°C 200°C (392°F) 1600.0 mg/mL Accumulation of glutaric acid in the body has been shown to be toxic. The accumulation of glutaric acid ranging from slightly or intermittently elevated urinary glutaric acid to gross organic aciduria occurs in glutaric aciduria. Glutaric aciduria type 1 is an autosomal-recessive disorder resulting from a deficiency of mitochondrial glutaryl-CoA dehydrogenase which is involved in the metabolism of lysine, hydroxylysine, and tryptophan. No indication of carcinogenicity to humans (not listed by IARC). This is an endogenously produced metabolite found in the human body. It is used in metabolic reactions, catabolic reactions or waste generation. Chronically high levels of glutaric acid are associated with at least 3 inborn errors of metabolism including: Glutaric Aciduria Type I and Glutaric Aciduria Type III. 2014-08-29T06:34:02Z 2018-03-21T17:46:18Z Glutaric acid C00489 17859 DB03553 GUA true OC(=O)CCCC(O)=O C5H8O4 InChI=1S/C5H8O4/c6-4(7)2-1-3-5(8)9/h1-3H2,(H,6,7)(H,8,9) InChIKey=JFCQEDHGNNZCLN-UHFFFAOYSA-N 132.1146 132.042258744 Endogenous Solid -0.29 HMDB00661 CHEMBL1162495 723 <p>Guiseppe Gigliotti, Jean-Michel Roul, &#8220;Process for the preparation of 3-methyl-3-hydroxy-glutaric acid.&#8221; U.S. Patent US4467108, issued June, 1980.</p>