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Pungent ginger compound puts immune cells on heightened alert: Research

ANI | | Posted by Tapatrisha Das, Freising
Feb 17, 2023 01:31 PM IST

The pungent compound is known to exert its "taste" effect via the so-called TRPV1 receptor, an ion channel located on the surface of nerve cells that responds to painful heat stimuli as well as to pungent compounds from chilli and ginger.

Ginger is known for activating the immune system. This argument is now supported by new findings from the Leibniz Center for Food Systems Biology at the Technical University of Munich. Little doses of a spicy ginger component heightened white blood cell alertness in laboratory testing. This process also involves a type of receptor that is involved in the experience of unpleasant heat stimuli and the sensation of spiciness in food, according to the study.

Pungent ginger compound puts immune cells on heightened alert: Research(Pixabay)
Pungent ginger compound puts immune cells on heightened alert: Research(Pixabay)

Whether as a medicinal plant or foodstuff, ginger is also becoming increasingly popular in Germany. According to the German Federal Statistical Office, the annual import volume of the fruity-hot root has almost quadrupled over the last ten years to around 31,600 tons. However, even though ginger consumption has increased, the question arises as to whether normal consumption levels are sufficient to achieve health effects. And if so, which compounds and molecular mechanisms play a role in this?

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To help clarify these questions, a team led by Veronika Somoza, director of the Leibniz Institute in Freising, Germany, conducted extensive research. The starting point was a result of an earlier pilot study, in which first author Gaby Andersen from the Leibniz-LSB@TUM also played a key role. As the study shows, significant amounts of pungent ginger compounds enter the blood about 30 to 60 minutes after consuming one litre of ginger tea. By far the highest levels were achieved by [6]-gingerol, with plasma concentrations of approximately 7 to 17 micrograms per litre.

The pungent compound is known to exert its "taste" effect via the so-called TRPV1 receptor, an ion channel located on the surface of nerve cells that responds to painful heat stimuli as well as to pungent compounds from chilli and ginger. Since some studies suggest that white blood cells also possess this receptor, the research team tested whether [6]-gingerol influences the activity of these immune cells.

In the first step, the team succeeded in detecting the receptor on neutrophil granulocytes. These cells make up about two-thirds of white blood cells and serve to combat invading bacteria. Further laboratory experiments by the research group also showed that even a very low concentration of almost 15 micrograms of [6]-gingerol per litre is sufficient to put the cells on heightened alert. Thus, compared to control cells, the stimulated cells reacted about 30 per cent more strongly to a peptide that simulates a bacterial infection. The addition of a TRPV1 receptor-specific inhibitor reversed the effect induced by [6]-gingerol.

"Thus, at least in experiments, very low [6]-gingerol concentrations are sufficient to affect the activity of immune cells via the TRPV1 receptor. In blood, these concentrations could theoretically be achieved by consuming about one litre of ginger tea," says Gaby Andersen. "So, our results support the assumption that the intake of common amounts of ginger may be sufficient to modulate cellular responses of the immune system. Nevertheless, there are still many unanswered questions at the molecular, epidemiological and medical levels that need to be addressed with the help of modern food and health research," concludes Veronika Somoza.

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This story has been published from a wire agency feed without modifications to the text.
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