Crustacean Molting: Regulation and Effects of Environmental Toxicants

environmental effects of gol-e-gohar iron ore mine on groundwater of the area

gol-e-gohar iron ore mine of sirjan in southern part of iran is a large open pit that operates below the groundwater table and during mining operation, dewatering is required to prevent operation processes from flooding. current operation is going on by digging wells in or out of the pit and pumping to prevent flooding. as a result of the former dewatering operation a vast deep cone of depressi...

Proteomics and signal transduction in the crustacean molting gland.

Regulation of the molting cycle in decapod crustaceans involves 2 endocrine organs: the X-organ/sinus gland (XO/SG) complex located in the eyestalk ganglia and the Y-organ (YO) located in the cephalothorax. Two neuropeptides [molt-inhibiting hormone (MIH) and crustacean hyperglycemic hormone (CHH)] are produced in the XO/SG complex and inhibit ecdysteroidogenesis in the YO. Thus, YO activation ...

Environmental toxicants: human exposures and their health effects

Impacts of xenobiotics on crustacean molting: the invisible endocrine disruption.

Aquatic pollution has led to the accumulation of various xenobiotics in crustaceans. A number of these environmental chemicals have been found to interfere with molting of crustaceans. Results of initial mechanistic studies with Uca pugilator suggest that the disruption of molting results from the disturbance to the Y-organ-ecdysteroid receptor (EcR) axis by xenobiotics. Such disturbance to the...

Environmental Toxicants and Testicular Apoptosis

When apoptosis is improperly activated or regulated in the testis, infertility or even cancer can result. Studies have implicated elevated rates of apoptosis in infertile male patients. Pinpointing how environmental toxicity affects apoptosis is important for the advancement of preventative medicine and behavior, especially as potentially harmful compounds continue to proliferate in households ...