Various natural carotenoids seem to be valuable for cancer prevention, and these carotenoids
may be more suitable in combinational use, rather than in single use. In fact, we have …

Various natural carotenoids, besides β-carotene, were proven to have anticarcinogenic activity,
and some of them showed more potent activity than β-carotene. Thus, these carotenoids (…

Fucoxanthin is a marine carotenoid mainly found in brown seaweeds. Its antitumor and
cancer-preventative function has been extensively investigated. Investigations have indicated …

A carotenoid biosynthesis gene cluster for the production of astaxanthin was isolated from
the marine bacterium Agrobacterium aurantiacum. This cluster contained five carotenogenic …

Genistein, an isoflavone, is a specific inhibitor of tyrosine kinase and topoisomerase II. However,
its effect on cell growth is unknown. Therefore, we examined the effects of genistein on …

Objective: Isoliquiritigenin, one of the components in the root of Glycyrrhiza glabra L., is a
member of the flavonoids, which are known to have an anti-tumor activity in vitro and in vivo. In …

Although β-carotene has been considered to be a key cancer preventive agent in green and
yellow vegetables, other types of carotenoids, such as α-carotene, may also contribute to …

Tocotrienols have been reported to have higher biological activities than tocopherols. We
investigated the antitumor effect of tocotrienols both in vivo and in vitro. Oral administration of …

Various natural carotenoids were proven to have anticarcinogenic activity. Epidemiological
investigations have shown that cancer risk is inversely related to the consumption of green …

Glycyrrhetinic acid (GA) and its related compounds are known to have anti-inflammatory
activity and also to inhibit liver carcinogenesis and tumor growth. GA and related compounds …