| Record Information |
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| Version | 5.0 |
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| Status | Detected and Quantified |
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| Creation Date | 2005-11-16 15:48:42 UTC |
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| Update Date | 2022-03-07 02:49:09 UTC |
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| HMDB ID | HMDB0001304 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | QH2 |
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| Description | QH2, also known as COQH2 or ubiquinol, belongs to the class of organic compounds known as ubiquinols. These are coenzyme Q derivatives containing a 5, 6-dimethoxy-3-methylbenzene-1,4-diol moiety to which an isoprenyl group is attached at ring position 2(or 6). QH2 is possibly neutral. |
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| Structure | COC1=C(O)C(C)=C(C\C=C(/C)CCC=C(C)C)C(O)=C1OC InChI=1S/C19H28O4/c1-12(2)8-7-9-13(3)10-11-15-14(4)16(20)18(22-5)19(23-6)17(15)21/h8,10,20-21H,7,9,11H2,1-6H3/b13-10+ |
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| Synonyms | | Value | Source |
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| CoQH2 | Kegg | | Coenzymes QH2 | HMDB | | Reduced ubiquinone | HMDB | | Ubiquinol | HMDB | | Ubiquinone-1 | HMDB | | Coenzyme Q10, reduced | HMDB | | Ubiquinol-10 | HMDB |
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| Chemical Formula | (C5H8)nC14H20O4 |
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| Average Molecular Weight | Not Available |
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| Monoisotopic Molecular Weight | Not Available |
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| IUPAC Name | Not Available |
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| Traditional Name | Not Available |
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| CAS Registry Number | 56275-39-9 |
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| SMILES | COC1=C(O)C(C)=C(C\C=C(/C)CCC=C(C)C)C(O)=C1OC |
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| InChI Identifier | InChI=1S/C19H28O4/c1-12(2)8-7-9-13(3)10-11-15-14(4)16(20)18(22-5)19(23-6)17(15)21/h8,10,20-21H,7,9,11H2,1-6H3/b13-10+ |
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| InChI Key | RNUCUWWMTTWKAH-JLHYYAGUSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as ubiquinols. These are coenzyme Q derivatives containing a 5, 6-dimethoxy-3-methylbenzene-1,4-diol moiety to which an isoprenyl group is attached at ring position 2(or 6). |
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| Kingdom | Organic compounds |
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| Super Class | Lipids and lipid-like molecules |
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| Class | Prenol lipids |
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| Sub Class | Quinone and hydroquinone lipids |
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| Direct Parent | Ubiquinols |
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| Alternative Parents | |
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| Substituents | - Ubiquinol skeleton
- Aromatic monoterpenoid
- Methoxyphenol
- Monocyclic monoterpenoid
- Monoterpenoid
- O-dimethoxybenzene
- Dimethoxybenzene
- Anisole
- Phenoxy compound
- Hydroquinone
- M-cresol
- Methoxybenzene
- O-cresol
- Phenol ether
- Alkyl aryl ether
- Phenol
- Toluene
- Monocyclic benzene moiety
- Benzenoid
- Ether
- Hydrocarbon derivative
- Organic oxygen compound
- Organooxygen compound
- Aromatic homomonocyclic compound
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| Molecular Framework | Aromatic homomonocyclic compounds |
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| External Descriptors | Not Available |
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| Ontology |
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| Physiological effect | |
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| Disposition | |
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| Process | |
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| Role | |
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| Physical Properties |
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| State | Solid |
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| Experimental Molecular Properties | | Property | Value | Reference |
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| Melting Point | Not Available | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | Not Available | Not Available | | LogP | Not Available | Not Available |
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| Experimental Chromatographic Properties | Not Available |
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| Predicted Molecular Properties | |
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| Predicted Chromatographic Properties | Predicted Collision Cross Sections| Predictor | Adduct Type | CCS Value (Å2) | Reference |
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| DeepCCS | [M+H]+ | 181.645 | 30932474 | | DeepCCS | [M-H]- | 179.287 | 30932474 | | DeepCCS | [M-2H]- | 213.087 | 30932474 | | DeepCCS | [M+Na]+ | 188.313 | 30932474 |
Predicted Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
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| Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022. | 8.56 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 15.8335 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 0.89 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2652.5 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 313.3 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 210.5 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 175.9 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 117.1 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 734.9 seconds | 40023050 | | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 715.9 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 78.0 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1497.9 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 618.5 seconds | 40023050 | | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 1230.1 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 480.4 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 451.7 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 267.6 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 355.1 seconds | 40023050 | | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 8.1 seconds | 40023050 |
Predicted Kovats Retention IndicesNot Available |
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| Spectra |
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| GC-MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted GC-MS | Predicted GC-MS Spectrum - QH2 GC-MS (Non-derivatized) - 70eV, Positive | splash10-0a4r-4193000000-48fe18179b80bb21b5c7 | 2017-11-06 | Wishart Lab | View Spectrum |
MS/MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH2 10V, Positive-QTOF | splash10-00di-0239000000-bbff225e78add9a452cd | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH2 20V, Positive-QTOF | splash10-05fs-5941000000-9f3d49dffc1fee6bce79 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH2 40V, Positive-QTOF | splash10-0690-9510000000-6b82f15187f9c07ab964 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH2 10V, Negative-QTOF | splash10-014i-0009000000-538077b5337d583f80b6 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH2 20V, Negative-QTOF | splash10-00kb-1195000000-ee266dcd83a76f9e4973 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH2 40V, Negative-QTOF | splash10-0aba-5390000000-aa9db1cbd8b9e542a924 | 2019-02-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH2 10V, Positive-QTOF | splash10-00di-1229000000-bcae25f8e04aef2f7f2e | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH2 20V, Positive-QTOF | splash10-0002-4971000000-a2a095c9a71f782655e6 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH2 40V, Positive-QTOF | splash10-05pw-6930000000-256eb8fb25dcd7ed3a83 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH2 10V, Negative-QTOF | splash10-014i-0009000000-0385a0c55ac9f0aa5ed4 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH2 20V, Negative-QTOF | splash10-014i-0559000000-c001cae147213a35d7d5 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - QH2 40V, Negative-QTOF | splash10-0kdr-1981000000-d586cd100610d78946f2 | 2021-09-23 | Wishart Lab | View Spectrum |
NMR Spectra| Spectrum Type | Description | Deposition Date | Source | View |
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| Predicted 1D NMR | 13C NMR Spectrum (1D, 100 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 100 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 1000 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 200 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 200 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 300 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 300 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 400 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 400 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 500 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 500 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 600 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 600 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 700 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 700 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 800 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 800 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 13C NMR Spectrum (1D, 900 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum | | Predicted 1D NMR | 1H NMR Spectrum (1D, 900 MHz, H2O, predicted) | 2022-08-18 | Wishart Lab | View Spectrum |
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| Biological Properties |
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| Cellular Locations | - Extracellular
- Membrane
- Inner mitochondrial membrane
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| Biospecimen Locations | |
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| Tissue Locations | - Epidermis
- Skeletal Muscle
- Testis
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| Pathways | |
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| Normal Concentrations |
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| Not Available |
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| Abnormal Concentrations |
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| Blood | Detected and Quantified | 7.4 +/- 2.7 uM | Adult (>18 years old) | Both | Heart failure | | details |
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| Associated Disorders and Diseases |
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| Disease References | | Heart failure |
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- Bhagavan HN, Chopra RK: Plasma coenzyme Q10 response to oral ingestion of coenzyme Q10 formulations. Mitochondrion. 2007 Jun;7 Suppl:S78-88. Epub 2007 Mar 27. [PubMed:17482886 ]
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| Associated OMIM IDs | None |
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| External Links |
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| DrugBank ID | Not Available |
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| Phenol Explorer Compound ID | Not Available |
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| FooDB ID | FDB022543 |
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| KNApSAcK ID | Not Available |
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| Chemspider ID | 4444052 |
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| KEGG Compound ID | C00390 |
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| BioCyc ID | Not Available |
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| BiGG ID | Not Available |
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| Wikipedia Link | Coenzyme Q10 |
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| METLIN ID | 6146 |
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| PubChem Compound | 5280344 |
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| PDB ID | Not Available |
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| ChEBI ID | Not Available |
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| Food Biomarker Ontology | Not Available |
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| VMH ID | Q10H2 |
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| MarkerDB ID | Not Available |
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| Good Scents ID | Not Available |
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| References |
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| Synthesis Reference | Not Available |
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| Material Safety Data Sheet (MSDS) | Not Available |
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| General References | - Shindo Y, Witt E, Han D, Epstein W, Packer L: Enzymic and non-enzymic antioxidants in epidermis and dermis of human skin. J Invest Dermatol. 1994 Jan;102(1):122-4. [PubMed:8288904 ]
- Passi S, Grandinetti M, Maggio F, Stancato A, De Luca C: Epidermal oxidative stress in vitiligo. Pigment Cell Res. 1998 Apr;11(2):81-5. [PubMed:9585244 ]
- Neuzil J, Stocker R: Free and albumin-bound bilirubin are efficient co-antioxidants for alpha-tocopherol, inhibiting plasma and low density lipoprotein lipid peroxidation. J Biol Chem. 1994 Jun 17;269(24):16712-9. [PubMed:8206992 ]
- Mohr D, Umeda Y, Redgrave TG, Stocker R: Antioxidant defenses in rat intestine and mesenteric lymph. Redox Rep. 1999;4(3):79-87. [PubMed:10496410 ]
- Kontush A, Spranger T, Reich A, Baum K, Beisiegel U: Lipophilic antioxidants in blood plasma as markers of atherosclerosis: the role of alpha-carotene and gamma-tocopherol. Atherosclerosis. 1999 May;144(1):117-22. [PubMed:10381285 ]
- Halliwell B, Hu ML, Louie S, Duvall TR, Tarkington BK, Motchnik P, Cross CE: Interaction of nitrogen dioxide with human plasma. Antioxidant depletion and oxidative damage. FEBS Lett. 1992 Nov 16;313(1):62-6. [PubMed:1426270 ]
- Peltola V, Huhtaniemi I, Metsa-Ketela T, Ahotupa M: Induction of lipid peroxidation during steroidogenesis in the rat testis. Endocrinology. 1996 Jan;137(1):105-12. [PubMed:8536600 ]
- Miles L, Miles MV, Tang PH, Horn PS, Wong BL, DeGrauw TJ, Morehart PJ, Bove KE: Muscle coenzyme Q: a potential test for mitochondrial activity and redox status. Pediatr Neurol. 2005 May;32(5):318-24. [PubMed:15866432 ]
- Lonnrot K, Metsa-Ketela T, Molnar G, Ahonen JP, Latvala M, Peltola J, Pietila T, Alho H: The effect of ascorbate and ubiquinone supplementation on plasma and CSF total antioxidant capacity. Free Radic Biol Med. 1996;21(2):211-7. [PubMed:8818636 ]
- Kontush A, Reich A, Baum K, Spranger T, Finckh B, Kohlschutter A, Beisiegel U: Plasma ubiquinol-10 is decreased in patients with hyperlipidaemia. Atherosclerosis. 1997 Feb 28;129(1):119-26. [PubMed:9069526 ]
- Hargreaves P, Rahman S, Guthrie P, Taanman JW, Leonard JV, Land JM, Heales SJ: Diagnostic value of succinate ubiquinone reductase activity in the identification of patients with mitochondrial DNA depletion. J Inherit Metab Dis. 2002 Feb;25(1):7-16. [PubMed:12004863 ]
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