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AuthorBadran, Adnan
AuthorBaydoun, Elias
AuthorSamaha, Ali
AuthorPintus, Gianfranco
AuthorMesmar, Joelle
AuthorIratni, Rabah
AuthorIssa, Khodr
AuthorEid, Ali H
Available date2019-08-22T11:35:02Z
Publication Date2019-06-01
Publication NameBiomoleculesen_US
Identifierhttp://dx.doi.org/10.3390/biom9060227
CitationAdnan Badran et. al. , Marjoram Relaxes Rat Thoracic Aorta Via a PI3‐K/eNOS/cGMP Pathway, Biomolecules 2019, 9, 227
ISSN2218-273X
URIwww.mdpi.com/journal/biomolecules
URIhttp://hdl.handle.net/10576/11705
AbstractDespite pharmacotherapeutic advances, cardiovascular disease (CVD) remains the primary cause of global mortality. Alternative approaches, such as herbal medicine, continue to be sought to reduce this burden. is recognized for many medicinal values, yet its vasculoprotective effects remain poorly investigated. Here, we subjected rat thoracic aortae to increasing doses of an ethanolic extract of (OME). OME induced relaxation in a dose-dependent manner in endothelium-intact rings. This relaxation was significantly blunted in denuded rings. N(ω)-nitro-l-arginine methyl ester (L-NAME) or 1H-[1,2,4]oxadiazolo[4,3,-a]quinoxalin-1-one (ODQ) significantly reduced the OME-induced vasorelaxation. Cyclic guanosine monophosphate (cGMP) levels were also increased by OME. Moreover, wortmannin or LY294002 significantly reduced OME-induced vasorelaxation. Blockers of ATP-sensitive or Ca2+-activated potassium channels such as glibenclamide or tetraethylamonium (TEA), respectively, did not significantly affect OME-induced relaxation. Similarly, verapamil, a Ca channel blocker, indomethacin, a non-selective cyclooxygenase inhibitor, and pyrilamine, a H1 histamine receptor blocker, did not significantly modulate the observed relaxation. Taken together, our results show that OME induces vasorelaxation via an endothelium-dependent mechanism involving the phosphoinositide 3-kinase (PI3-K)/ endothelial nitric oxide (NO) synthase (eNOS)/cGMP pathway. Our findings further support the medicinal value of marjoram and provide a basis for its beneficial intake. Although consuming marjoram may have an antihypertensive effect, further studies are needed to better determine its effects in different vascular beds.
Languageen
PublisherMDPI
SubjectPI3-K
SubjectcGMP
Subjecthypertension
Subjectmarjoram
Subjectnitric oxide
Subjectvasorelaxation
TitleMarjoram Relaxes Rat Thoracic Aorta Via a PI3-K/eNOS/cGMP Pathway.
TypeArticle


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