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Depression: 21st Century Solutions + The Dark Side of Wheat

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Article Publish Status: FREE
Abstract Title:

Disruption of Angiogenesis by Anthocyanin-Rich Extracts of Hibiscus sabdariffa.

Abstract Source:

Int J Sci Eng Res. 2017 Feb ;8(2):299-307. PMID: 28459020

Abstract Author(s):

Madu Joshua, Christiana Okere, O'Donnell Sylvester, Muhammad Yahaya, Omale Precious, Thagriki Dluya, Ji-Yeon Um, Musa Neksumi, Jessica Boyd, Jennifer Vincent-Tyndall, Dong-Won Choo, Diana R Gutsaeva, Wan Jin Jahng

Article Affiliation:

Madu Joshua

Abstract:

Abnormal vessel formations contribute to the progression of specific angiogenic diseases including age-related macular degeneration. Adequate vessel growth and maintenance represent the coordinated process of endothelial cell proliferation, matrix remodeling, and differentiation. However, the molecular mechanism of the proper balance between angiogenic activators and inhibitors remains elusive. In addition, quantitative analysis of vessel formation has been challenging due to complex angiogenic morphology. We hypothesized that conjugated double bond containing-natural products, including anthocyanin extracts from Hibiscus sabdariffa, may control the proper angiogenesis. The current study was designed to determine whether natural molecules from African plant library modulate angiogenesis. Further, we questioned how the proper balance of anti- or pro-angiogenic signaling can be obtained in the vascular microenvironment by treating anthocyanin or fatty acids using chick chorioallantoic membrane angiogenesis model in ovo. The angiogenic morphology was analyzed systematically by measuring twenty one angiogenic indexes using Angiogenic Analyzer software. Chick chorioallantoic model demonstrated that anthocyanin-rich extracts inhibited angiogenesis in time- and concentration-dependent manner. Molecular modeling analysis proposed that hibiscetin as a component in Hibiscus may bind to the active site of vascular endothelial growth factor receptor 2 (VEGFR2) withΔG= -8.42 kcal/mol of binding energy. Our results provided the evidence that anthocyanin is an angiogenic modulator that can be used to treat uncontrolled neovascular-related diseases, including age-related macular degeneration.

Study Type : In Vitro Study

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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