Gingerol

This chemical compound is found in all members of the Zingiberaceae family and is high in concentrations in the grains of paradise as well as an African Ginger species.

In a pre-clinical meta-analysis of gingerol compounds anticancer, anti-inflammatory, anti-fungal,[7] antioxidant, neuroprotective[8] and gastroprotective properties were reported, which include studies in-vitro and in-vivo.

[10][11][12] Many studies have been around the effects of gingerols on a wide range of cancers including leukemia,[13] prostate,[14] breast,[15] skin,[16] ovarian,[17] lung,[18] pancreatic[19] and colorectal.

[21][23] Most herbal medicine, which include gingerols, are under the restrictions of the Food and Drug Administration in the United States and experimental methods have not held up to scrutiny which has decreased the value in phytochemical research.

[23][21] Herbal medicine is untested for quality assurance, potency and effectiveness in clinical settings due to a lack of funding in eastern medical research.

[21] Most research on [6]-Gingerol has been on either mouse subjects (in-vivo) or on cultured human tissue (in-vitro) and may be used in the future to discuss possible applications for multi-target disease control.

[7] When tested for the anti-fungal properties the African ginger combated against 13 human pathogens and was three times more effective than the commercial Indonesian counterpart.

The Cytochrome C assembles an apoptosome which activates the Caspase-9 and initiates an executioner Caspase cascade, effectively breaking down DNA into histones and promoting apoptosis.

[15] This study suggests the mechanism by which cancer cell growth was impacted was due to a reduction in specific mRNA that transcribes for extracellular degrading enzymes called matrix metalloproteinases (MMP's).

[10] In a different study the exact metabolic mechanisms associated with the physiological benefits of gingerol phytochemicals concluded that there was increased enzyme activity (CAT) and glutathione production while decreasing lipoprotein cholesterol and improving glucose tolerance in mice.

A study observed the molecular mechanisms responsible for the protection against DNA fragmentation and mitochondrial membrane potential deterioration of cells which suggests a neuroprotective support of gingerol.

[26] There are some pro-oxidant behaviors to gingerol compounds when the concentration reaches high levels although also considered, in normal conditions these phytochemicals observed have anti-inflammatory and anti-oxidant qualities.

[26] In another study [6]-Gingerol notably inhibited the metabolic rate of rats when given an intraperitoneal injection which induced a hypothermic reaction though, when consumed orally in excess there were no changes in body temperature.

In order to get desired substitution pattern on the aromatic ring, caffeoyl-CoA O-methyltransferase (CCOMT) converts the hydroxyl group at C3 into methoxy as seen in Feruloyl-CoA (8).

Gingerol
Gingerol
A few established cellular pathways effected by [6]-gingerol that result in apoptosis of a cancerous cell. ABBREVIATIONS: CDK: Cyclin-dependent kinase; PI3K: Phosphoinositide 3-kinase; Akt: Protein kinase B; mTOR: Mammalian target of rapamycin; AMPK: 5’adenosine monophosphate-activated protein kinase; Bax: Bcl-2-associated X protein; Bcl-2: B-cell lymphoma 2.
Proposed gingerol biosynthesis
Alternative proposed pathway