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  2. Sirtuin 4 - Wikipedia

    en.wikipedia.org/wiki/Sirtuin_4

    SIRT4 is a mitochondrial ADP-ribosyltransferase that inhibits mitochondrial glutamate dehydrogenase 1 activity, thereby downregulating insulin secretion in response to amino acids. [7] A deacetylation of malonyl-CoA decarboxylase enzyme by SIRT4 represses the enzyme activity, inhibiting fatty acid oxidation in muscle and liver cells.

  3. Sirtuin - Wikipedia

    en.wikipedia.org/wiki/Sirtuin

    These genes are designated as belonging to different classes (I-IV), depending on their amino acid sequence structure. [20] Several gram positive prokaryotes as well as the gram negative hyperthermophilic bacterium Thermotoga maritima possess sirtuins that are intermediate in sequence between classes, and these are placed in the ...

  4. Autoimmune autonomic ganglionopathy - Wikipedia

    en.wikipedia.org/wiki/Autoimmune_autonomic...

    Antibody testing, such as anti-Hu or collapsing response mediator protein, can aid in the identification of paraneoplastic patients. [ 1 ] One should rule out Guillain-Barré syndrome if the patient exhibits acute or subacute autonomic instability accompanied by weakness , as this condition frequently results in ileus , constipation , and blood ...

  5. Seroconversion - Wikipedia

    en.wikipedia.org/wiki/Seroconversion

    If an antibody is already bound to an antigen, that antibody and that antigen cannot bind to the test. Antibody tests therefore cannot detect that specific antibody molecule. Due to this binding, if the amounts of antigen and antibody in the blood are equal, each antibody molecule will be in a complex and be undetectable by standard techniques.

  6. Serine - Wikipedia

    en.wikipedia.org/wiki/Serine

    Serine (symbol Ser or S) [3] [4] is an α-amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated − NH +3 form under biological conditions), a carboxyl group (which is in the deprotonated − COO −

  7. Dicarboxylic aminoaciduria - Wikipedia

    en.wikipedia.org/wiki/Dicarboxylic_aminoaciduria

    Dicarboxylic aminoaciduria involves excretion of urinary glutamate and aspartate, resulting from the incomplete reabsorption of anionic amino acids from the glomerular filtrate in the kidney. [3] This affects a diseased individual's amino acid pool, as they will have to spend additional resources to replenish the amino acids which would have ...

  8. My Rare Cancer Has Recurred 3 Times in 3 Years. At Age ... - AOL

    www.aol.com/rare-cancer-recurred-3-times...

    At just 19 years old, Eldiara Doucette — known on social media as "Bionic Barbie" — was diagnosed with synovial sarcoma, a rare form of soft tissue cancer that affects only 1,000 people per ...

  9. Kynurenic acid - Wikipedia

    en.wikipedia.org/wiki/Kynurenic_acid

    Kynurenic acid (KYNA or KYN) is a product of the normal metabolism of amino acid L-tryptophan. It has been shown that kynurenic acid possesses neuroactive activity. It acts as an antiexcitotoxic and anticonvulsant, most likely through acting as an antagonist at excitatory amino acid receptors. Because of this activity, it may influence ...