Gold in Pyrite within Altai – Sayan Folded Belt Gold Deposits

Bilirubin, the gold within.

The first step in the catabolism of heme is cleavage of the porphyrin ring by heme oxygenase (HO); this reaction yields biliverdin, carbon monoxide, and iron. Two HO isoforms mediate this process, constitutively expressed HO-2 and inducible HO-1. Many cell types express HO, with high expression present in cells of the reticuloendothelial system involved in the degradation of erythrocytes.1 The ...

Natural gold particles in Eucalyptus leaves and their relevance to exploration for buried gold deposits

Eucalyptus trees may translocate Au from mineral deposits and support the use of vegetation (biogeochemical) sampling in mineral exploration, particularly where thick sediments dominate. However, biogeochemistry has not been routinely adopted partly because biotic mechanisms of Au migration are poorly understood. For example, although Au has been previously measured in plant samples, there has ...

Anomalously silver-rich vein-hosted mineralisation in disseminated-style gold deposits, Jiaodong gold district, China

Bilirubin , The Gold Within Running

Editorial Bilirubin , the Gold Within

The first step in the catabolism of heme is cleavage of the porphyrin ring by heme oxygenase (HO); this reaction yields biliverdin, carbon monoxide, and iron. Two HO isoforms mediate this process, constitutively expressed HO-2 and inducible HO-1. Many cell types express HO, with high expression present in cells of the reticuloendothelial system involved in the degradation of erythrocytes.1 The ...