Background Zeaxanthin is a carotenoid pigment found in several fruits and vegetables.
Belonging to the xanthophyll family, it is widely present in human and some animals skin …

Malaria is still the most destructive and dangerous parasitic infection in many tropical and
subtropical countries. The burden of this disease is getting worse, mainly due to the …

Bixa orellana L., popularly known as “urucum,” has been used by indigenous communities
in Brazil and other tropical countries for several biological applications, which indicates its …

This review of the current literature aims to study correlations between the chemical structure
and gastric anti-ulcer activity of tannins. Tannins are used in medicine primarily because of …

Natural compounds, mostly from plants, have been the mainstay of traditional medicine for
thousands of years. They have also been the source of lead compounds for modern …

Eryngium foetidum L. is a biennial herb which is used extensively as a medicinal plant in
most tropical regions. It is of increasing importance as a spice plant cultivated in India …

Bidens pilosa L. is a cosmopolitan annual herb, known for its traditional use in treating
various diseases and thus much studied for the biological activity of its extracts, fractions and …

Malaria is a human infectious disease that is caused by four species of Plasmodium. It is
responsible for more than 1 million deaths per year. Natural products contain a great variety …

Many algal species contain relatively high concentrations of polysaccharide substances, a
number of which have been shown to have anti-inflammatory and/or immunomodulatory …

The Combretaceae is a large family of herbs, shrubs and trees, comprising about 20 genera
and 600 species with tropical distribution around the globe and centers of diversity in Africa …