...Theanuga Chandrapalan; Raymond W. M. Kwong ABSTRACT Trace metals such as iron, copper, zinc and manganese play essential roles in various biological processes in fish, including development, energy metabolism and immune response. At embryonic stages, fish obtain essential metals primarily from...

.... The large amount of blood they consume contains great quantities of iron, an essential but also toxic element. The function of ferritin, an iron storage protein, and iron metabolism in ticks need to be further elucidated. Here, we investigated the function a newly identified secreted ferritin from the hard...

... of experiments) and also iron, copper and manganese (2–7 p.p.m.). Iron-specific staining demonstrates that iron is bound specifically to the 15 kDa glue protein. Several approaches were used to show that these metals have important functional effects. Adding iron or copper to dissolved glue causes the proteins...

... the common purpose of maintaining oxygen homeostasis. To date more than 60 putative HIF-target genes have been identified, expression of which governs important processes such as angiogenesis and regulation of vascular tone,erythropoiesis, iron homeostasis, energy metabolism and pH regulation as well as cell...

...N. R. Bury; M. Grosell; C. M. Wood; C. Hogstrand; R. W. Wilson; J. C. Rankin; M. Busk; T. Lecklin; F. B. Jensen SUMMARY Iron is an essential element because it is a key constituent of the metalloproteins involved in cellular respiration and oxygen transport. There is no known regulated excretory...

...D. A. Kuterbach; B. Walcott ABSTRACT Particulate iron was found within the trophocytes of the fat body of the adult honey-bee. These iron granules differed in their structure and composition from iron granules found in other biological systems. The granules had an average diameter of 0·32 ± 0·07 μ...

...D. A. Kuterbach; B. Walcott ABSTRACT The development of iron granules in honey-bee tissues was investigated using both anatomical and analytical methods. Iron granules are present only in the trophocytes of post-eclosion adults and have the same elemental composition as those in foraging adults...