All Studies

Evaluation of lignans from Heliopsis helianthoides var. scabra for their potential antimetastatic effects in the brain.

Researchers isolated six compounds from the roots of a plant called Heliopsis helianthoides var. scabra and tested their effects on brain tumor metastasis formation. Two of the compounds, helioxanthin (3) and (7E)-7,8-dehydroheliobuphthalmin (4), inhibited the migration of melanoma and brain endothelial cells. Compound 3 also reduced the adhesion of melanoma cells to the brain endothelium and enhanced the barrier function of the blood-brain barrier. These findings suggest that compounds 3 and 4 have the potential to interfere with different steps of brain metastasis formation and to enhance the barrier function of cerebral endothelial cells.

Hajdu Z et al (2014).
J Nat Prod.
PubMed:
25479041

The effects of Acorus tatarinowii Schott on 5-HT concentrations, TPH2 and 5-HT1B expression in the dorsal raphe of exercised rats.

In a study, researchers investigated the effects of Acorus tatarinowii Schott, an herb used in traditional Chinese medicine, on treadmill running endurance in rats. They also looked at the levels of certain neurotransmitters and proteins in the rats' brains. The results showed that the rats who were given the herb had greater endurance and increased levels of serotonin, a neurotransmitter that can affect mood and behavior. The researchers suggest that Acorus tatarinowii Schott may have potential as an anti-fatigue supplement, but more research is needed to fully understand its effects on the central nervous system.

Zhu M et al (2014).
J Ethnopharmacol.
PubMed:
25456438