Marine Algae Resistant to Inorganic Arsenic

Bioaccumulation and Biotransformation of Arsenic by Marine Algae in Hawaii

Arsenic and inorganic arsenic compounds

Arsenic, arsenic trioxide and pentoxide, arsenous acids, arsenic acid and their salts (arsenites and arsenates) are carcinogenic substances (Carcinogen category 1) and do not, therefore, have MAK and BAT values (Greim 2002). The former TRK value (technical exposure limit) for arsenic and its inorganic compounds was 0.10 mg arsenic/m (measured as the inhalable fraction of the aerosol; calculated...

Comparison of Bioavailability and Biotransformation of Inorganic and Organic Arsenic to Two Marine Fish.

Dietary uptake could be the primary route of arsenic (As) bioaccumulation in marine fish, but the bioavailability of inorganic and organic As remains elusive. In this study, we investigated the trophic transfer and bioavailability of As in herbivorous rabbitfish Siganus fuscescens and carnivorous seabass Lateolabrax japonicus. Rabbitfish were fed with one artificial diet or three macroalgae, wh...

Inorganic Arsenic Toxicological overview

• Absorption of arsenic is largely dependent on the solubility and particle size • Concentrations of arsenic or its metabolites in blood, hair, nails and urine may be used as biomarkers of arsenic exposure • Blood arsenic is a useful biomarker only in the case of acute arsenic poisoning or stable chronic high-level exposure • Since the elimination of arsenic takes place mainly via the kidneys, ...

The Effects of Marine Algae on Osteoporosis

Background: Osteoporosis is a prevalent bone disease caused by an imbalance between bone formation and resorption.  Nutritional factors are involved in the preven­tion of osteoporosis. Several treatments exist for osteoporosis including bisphosphonates, parathyroid hormone, estrogen therapy, and hormone therapy, which have their own side effects. In the quest for an appropriate treatment for os...