Track topics on Twitter Track topics that are important to you
A methanol-soluble extract of the bark of Myristica cinnamomea was found to exhibit anti-quorum sensing activity, and subsequent bioassay-guided isolation led to the identification of the active compound malabaricone C (1). Compound 1 inhibited violacein production by Chromobacterium violaceum CV026 when grown in the presence of a cognate signaling molecule, N-3-oxohexanoyl-homoserine lactone. Furthermore, 1 inhibited the quorum sensing-regulated pyocyanin production and biofilm formation in Pseudomonas aeruginosa PAO1. These results suggest that the anti-quorum sensing activity of 1 and related molecules should be investigated further.
Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya , 50603 Kuala Lumpur, Malaysia.
This article was published in the following journal.
Name: Journal of natural products
A new acylphenol, malabaricone E (1) together with the known malabaricones A-C (2-4), maingayones A and B (5 and 6) and maingayic acid B (7) were isolated from the ethyl acetate extract of the fruits ...
Bacteria regulate many phenotypes via quorum sensing systems. Quorum sensing is typically thought to evolve because the regulated cooperative phenotypes are only beneficial at certain cell densities. ...
We analyze ultrasensitivity in a model of Vibrio harveyi quorum sensing. We consider a feedforward model consisting of two biochemical networks per cell. The first represents the interchange of a sign...
The alternative sigma factor RpoN regulates many cell functions, such as motility, quorum sensing, and virulence in the opportunistic pathogen Pseudomonas aeruginosa (P. aeruginosa). P. aeruginosa oft...
In this study, anti-quorum sensing, and antioxidant activities, and chemical composition of Acer monspessulanum subsp. monspessulanum extracts were evaluated. Determination of the antioxidant activity...
The purpose of this study is to assess the clinical efficacy of azithromycin, used as a quorum-sensing blocker, when compared to placebo for preventing or delaying the occurrence of pneum...
The aim of the study is the comparison of two different leads in their capabilities to detect episodes and duration of paroxysmal atrial fibrillation (AF) and atrial tachyarrhythmia (AT), ...
This the first report undertaken to assess the effect of supplementation with oral gamma-aminobutyric acid (GABA), adenosine and antrosterol-containing AC mycelia on blood pressure among p...
The objective of this study is two fold, first to explore the potential of context sensitive intervention delivery to provide in-situ support for people with depressive symptoms, second to...
The study seeks to use microdialysis and microperfusion techniques to assess the feasibility of performing insulin delivery and glucose sensing at a single subcutaneous tissue site.
A phenomenon where microorganisms communicate and coordinate their behavior by the accumulation of signaling molecules. A reaction occurs when a substance accumulates to a sufficient concentration. This is most commonly seen in bacteria.
A class of G-protein-coupled receptors that react to varying extracellular CALCIUM levels. Calcium-sensing receptors in the PARATHYROID GLANDS play an important role in the maintenance of calcium HOMEOSTASIS by regulating the release of PARATHYROID HORMONE. They differ from INTRACELLULAR CALCIUM-SENSING PROTEINS which sense intracellular calcium levels.
Process whereby a cell, bodily structure, or organism (animal or plant) receives or detects a gravity stimulus. Gravity sensing plays an important role in the directional growth and development of an organism (GRAVITROPISM).
Intracellular signaling peptides and proteins that bind to CALCIUM. They undergo allosteric changes when bound to CALCIUM that affects their interaction with other signal-transducing molecules. They differ from CALCIUM-SENSING RECEPTORS which sense extracellular calcium levels.
A plant species in the MYRISTICACEAE family. The seed is used as a spice and used for antimicrobial and psychoactive effects. Myristicin, SAFROLE, and methyleugenol are key components.
Biological therapy involves the use of living organisms, substances derived from living organisms, or laboratory-produced versions of such substances to treat disease. Some biological therapies for cancer use vaccines or bacteria to stimulate the body&rs...