Results 31 to 40 of about 3,798 (181)

Tyrosinase Inhibitor Activity of Coumarin-Resveratrol Hybrids [PDF]

, 2009
In the present work we report on the contribution of the coumarin moiety to tyrosinase inhibition. Coumarin-resveratrol hybrids 1-8 have been resynthesized to investigate the structure-activity relationships and the IC50 values of these compounds were
CORDA M, DELOGU GL, ERA B, FADDA MB, FAIS A, MATOS MJ, PICCIAU C, PODDA G, QUEZADA E, SANTANA L   +9 more
core   +1 more source

Umbelliferone presents orofacial antinociceptive and anti-inflammatory activity via reduction of TNF-α in mice [PDF]

Brazilian Journal of Biology
Pain is a normal response of the central nervous system to trauma, infections, neoplasms, neuropathies, and inflammation. It can arise from physical, emotional, or cognitive conditions, and is classified as orofacial pain when it affects the mouth and ...
P. N. S. Silva, H. N. S. N. Pereira, L. V. N. Santos, L. C. M. M. Santos, R. J. F. Cavalcanti, H. C. Aragão-Neto, R. M. Braga, F. A. Gadelha, M. R. Lopes, D. P. Sousa, D. V. Fonsêca   +10 more
doaj   +1 more source

Umbelliferone and esculetin protect against N-nitrosodiethylamine-induced hepatotoxicity in rats [PDF]

, 2016
N-nitrosodiethylamine (NDEA), a nitrosamine compound, is known to cause liver damage through the generation of reactive oxygen species (ROS), resulting in oxidative damage to macromolecules such as DNA, and the consequent development of cancer.
Ellis, Elizabeth M., Subramaniam, Sudhakar Raja   +1 more
core   +1 more source

Umbelliferone instability during an analysis involving its extraction process [PDF]

Monatshefte für Chemie - Chemical Monthly, 2018
Umbelliferone (7-hydroxycoumarin) is one of the most popular compounds of the coumarins family. This compound receives the attention of scientists due to its diverse bioactivities in a number of applications in various therapeutic fields. An interesting aspect of umbelliferone is its structural lability.
Dawidowicz, Andrzej L., Bernacik, Katarzyna, Typek, Rafał   +2 more
openaire   +2 more sources

Quality parameters, fatty acid profiling and estimation of umbelliferone in grahaṇimihira tailam: An ayurvedic oil preparation

Ancient Science of Life, 2013
Background: Grahaṇimihira tailam is an unexplored ayurvedic oil preparation which consists of 34 ingredients. The efficacy of this traditional ayurvedic medicine is undisputable.
M Deepak, Prakash U Kumar, B Nitha, Indira Balachandran, A B Rema Shree   +4 more
doaj   +1 more source

Eco-friendly extraction and simultaneous determination of two coumarins in Justicia pectoralis (Acanthaceae)

Rodriguésia, 2020
Justicia pectoralis (Acanthaceae) is employed in folk medicine for its analgesic, anti-inflammatory and sedative effects and to treat respiratory diseases. It is known for properties of its coumarins, 1,2-benzopyrone and umbelliferone.
Alessandra Ribeiro Sartor Lima, Luan Augusto Cândido Lôbo, Thaísa Lorrana da Cruz Costa, Josana de Castro Peixoto, Leonardo Luiz Borges, Vanessa Cristiane de Santana Amaral, Joelma Abadia Marciano de Paula   +6 more
doaj   +1 more source

Anti-Melanogenic Effects of Umbelliferone: In Vitro and Clinical Studies

Molecules
Melanin overexpression causes skin hyperpigmentation, which is associated with various skin disorders and cosmetic concerns. Umbelliferone, a natural coumarin found widely in plant species, has been noted for its antioxidant and anti-inflammatory effects
Da Jung Kim, Min Sook Jung, Hee Un Jin, Mi Sun Kim, Chae Eun An   +4 more
doaj   +1 more source

Umbelliferone-Based Fluorescent Probe for Selective Recognition of Hydrogen Sulfide and Its Bioimaging in Living Cells and Zebrafish

Chemosensors, 2022
Hydrogen sulfide (H2S) plays a crucial role in a variety of physiological and pathological processes, similar to other gaseous signaling molecules. The significant pathophysiological functions of H2S have sparked a great deal of interest in the creation ...
Yuyu Fang, Fan Luo, Zhixing Cao, Cheng Peng, Wim Dehaen   +4 more
doaj   +1 more source

Umbelliferone in Needles of Picea abies *

Zeitschrift für Naturforschung C, 1980
Abstract A compound showing blue fluorescence under UV-light was isolated from spruce needles and identified as umbelliferone. Structure analysis was based on UV and mass spectroscopy as well as chromatographic comparison with authentic material. Quantitative evaluation by direct measurement of the fluorescence of the umbelliferone spot
Hermann Esterbauer, Elisabeth Schwarzl, Dieter Grill   +2 more
openaire   +1 more source

7-Hydroxycoumarin Induces Vasorelaxation in Animals with Essential Hypertension: Focus on Potassium Channels and Intracellular Ca²⁺ Mobilization

Molecules, 2022
Cardiovascular diseases (CVD) are the deadliest noncommunicable disease worldwide. Hypertension is the most prevalent risk factor for the development of CVD.
Rafael L. C. Jesus, Isnar L. P. Silva, Fênix A. Araújo, Raiana A. Moraes, Liliane B. Silva, Daniele S. Brito, Gabriela B. C. Lima, Quiara L. Alves, Darizy F. Silva   +8 more
doaj   +1 more source