TOPLINE:
Blood samples from healthy adults show an inhibition of neutrophil extracellular trap formation (NET) after 1 week of daily ginger supplements.
METHODOLOGY:
- Researchers recruited nine healthy adults aged 18-38 years to receive a 100-mg oral ginger supplement daily for 7 consecutive days.
- Blood samples were collected at baseline and on days 7 and 14, with isolation of neutrophils, peripheral blood mononuclear cells, and plasma.
- The researchers measured NET formation (NETosis) as a way to show the effect of ginger on inflammation.
TAKEAWAY:
- Measures of neutrophil cyclic AMP (cAMP) were significantly higher after 7 days of ginger supplements, compared with baseline levels, although these levels returned to near baseline by 1 week after discontinuing ginger consumption.
- Oral ginger supplements reduced neutrophil phosphodiesterase (PDE) activity by 40% from baseline, similar to results seen with synthetic PDE4 inhibitors.
- The results build on previous studies showing inhibition of neutrophil hyperactivity in mice with antiphospholipid syndrome and lupus after injection with a purified ginger preparation.
- Researchers replicated the results showing effects of oral ginger on neutrophils in eight additional healthy adults who also showed reduced NETosis and increased cAMP after 1 week of ginger supplements.
IN PRACTICE:
The results show biologic support for the potential of ginger to affect neutrophil function in humans; therefore, “ginger may have a real ability to complement treatment programs that are already underway,” said corresponding author Jason Knight, MD, of the University of Michigan, Ann Arbor, in a press release.
SOURCE:
First author Ramadan A. Ali, MD, of the University of Michigan, Ann Arbor, and colleagues reported their study in JCI Insight.
LIMITATIONS:
More research is needed in humans with inflammatory and autoimmune diseases to confirm the findings and explore ginger as an adjuvant therapeutic intervention.
DISCLOSURES:
The study received no outside funding. The researchers report no relevant financial relationships.
A version of this article appeared on Medscape.com.