Structural Elucidation and Free Radical Scavenging Activity of a new o-Orsellinic Acid Derivative Isolated from the Lichen Cladonia rappii
Rappiidic acid, a new o-orsellinic acid derivative, was isolated from the lichen Cladonia rappii. Its capability to scavenge reactive oxygen species (ROS) and reactive nitrogen species (RNS) was investigated and compared with resveratrol and (+)-usnic acid. Usnic acid at 100 μM was the most efficien...
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Published in | Natural product communications Vol. 11; no. 9; p. 1311 |
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Main Authors | , , , , , , |
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Language | English |
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01.09.2016
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Abstract | Rappiidic acid, a new o-orsellinic acid derivative, was isolated from the lichen Cladonia rappii. Its capability to scavenge reactive oxygen species (ROS) and reactive nitrogen species (RNS) was investigated and compared with resveratrol and (+)-usnic acid. Usnic acid at 100 μM was the most efficient ROS scavenger, exhibiting activity 3-fold higher than that of resveratrol. At the same concentration, rappidic acid scavenged 23.1% of ROS formed, demonstrating that this compound is twice as active as resveratrol. Both compounds were shown to be poor RNS scavengers. |
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AbstractList | Rappiidic acid, a new o-orsellinic acid derivative, was isolated from the lichen Cladonia rappii. Its capability to scavenge reactive oxygen species (ROS) and reactive nitrogen species (RNS) was investigated and compared with resveratrol and (+)-usnic acid. Usnic acid at 100 μM was the most efficient ROS scavenger, exhibiting activity 3-fold higher than that of resveratrol. At the same concentration, rappidic acid scavenged 23.1% of ROS formed, demonstrating that this compound is twice as active as resveratrol. Both compounds were shown to be poor RNS scavengers. Rappiidic acid, a new o-orsellinic acid derivative, was isolated from the lichen Cladonia rappii. Its capability to scavenge reactive oxygen species (ROS) and reactive nitrogen species (RNS) was investigated and compared with resveratrol and (+)-usnic acid. Usnic acid at 100 μM was the most efficient ROS scavenger, exhibiting activity 3-fold higher than that of resveratrol. At the same concentration, rappidic acid scavenged 23.1% of ROS formed, demonstrating that this compound is twice as active as resveratrol. Both compounds were shown to be poor RNS scavengers.Rappiidic acid, a new o-orsellinic acid derivative, was isolated from the lichen Cladonia rappii. Its capability to scavenge reactive oxygen species (ROS) and reactive nitrogen species (RNS) was investigated and compared with resveratrol and (+)-usnic acid. Usnic acid at 100 μM was the most efficient ROS scavenger, exhibiting activity 3-fold higher than that of resveratrol. At the same concentration, rappidic acid scavenged 23.1% of ROS formed, demonstrating that this compound is twice as active as resveratrol. Both compounds were shown to be poor RNS scavengers. |
Author | Modolo, Luzia V. Montanari, Ricardo M. Fernandes, Sergio A. Silva, Jefferson G. Lage, Tiago C.A. de Fátima, Ângelo Horta, Lívia P. |
Author_xml | – sequence: 1 givenname: Tiago C.A. surname: Lage fullname: Lage, Tiago C.A. – sequence: 2 givenname: Lívia P. surname: Horta fullname: Horta, Lívia P. – sequence: 3 givenname: Ricardo M. surname: Montanari fullname: Montanari, Ricardo M. – sequence: 4 givenname: Jefferson G. surname: Silva fullname: Silva, Jefferson G. – sequence: 5 givenname: Ângelo surname: de Fátima fullname: de Fátima, Ângelo – sequence: 6 givenname: Sergio A. surname: Fernandes fullname: Fernandes, Sergio A. email: sefernandes@gmail.com – sequence: 7 givenname: Luzia V. surname: Modolo fullname: Modolo, Luzia V. |
BackLink | https://www.ncbi.nlm.nih.gov/pubmed/30807031$$D View this record in MEDLINE/PubMed |
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Cites_doi | 10.1007/s00114-002-0305-3 10.1016/j.pupt.2013.07.002 10.1016/j.lwt.2014.04.047 10.56499/jppres14.042_2.5.138 10.1016/j.bmc.2012.02.036 10.1016/S0928-0987(97)00078-X 10.1021/np50047a033 10.1007/s11101-010-9201-1 10.1016/S0031-9422(02)00383-7 10.1590/S0102-33062011000200004 10.1021/np9803777 10.1039/B904541D 10.1016/j.femsec.2005.05.003 |
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Keywords | Superoxide anion DPPH Rappiidic acid Natural products Cladonia rappii A. Evans Free radical scavenging Orsellinic acid |
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