MedWorm provides a medical RSS filtering service. Over 6000 RSS medical sources are combined and output via different filters. This feed contains the latest medical blog items that have been tagged with 'iron deficiency'. Sat, 03 Sep 2011 03:30:39 +0100 http://www.medworm.com/index.php?rid=3311967&cid=t_218715_167_f&fid=38576&url=http%3A%2F%2Fwww.drbriffa.com%2Fblog%2F2010%2F02%2F26%2Firon-supplementation-found-to-improve-brain-function%2F Iron is an essential nutrient for the making of haemoglobin – the component in red blood cells that carries oxygen and delivers it to the tissues. If iron is deficient in the body, haemoglobin levels can fall and eventually cause anaemia (pathologically low haemoglobin). Symptoms of this can include mental and physical fatigue and low [...] (Source: Dr John Biffa's Blog) Dr John Biffa's Blog blogs http://www.medworm.com/rss/comments.php?id=3311967 Fri, 26 Feb 2010 16:14:43 +0100 3311967 http://www.medworm.com/index.php?rid=3220093&cid=t_218715_77_f&fid=37259&url=http%3A%2F%2Fwww.horizonpress.com%2Fblogger%2F2010%2F01%2Firon-in-bacillus.html Bacillus subtilis is a metabolically versatile soil microbe and Gram-positive model organism that displays a sophisticated adaptive response to conditions of iron limitation. The endogenous siderophore of B. subtilis is bacillibactin, a trimeric catecholate siderophore similar in structure to enterobactin. In addition to bacillibactin, B. subtilis can obtain iron from several xenosiderophores, ferric citrate, heme, and through a newly discovered elemental iron permease. The regulation of iron homeostasis in B. subtilis is complex and involves a ferric uptake regulator (Fur) protein as master regulator and at least two subsidiary regulatory systems. The most significant of these is an iron-sparing/prioritization response controlled by the small RNA FsrA and three auxiliary proteins (FbpABC)... Microbiology Blog: The weblog for microbiologists. blogs http://www.medworm.com/rss/comments.php?id=3220093 Thu, 28 Jan 2010 13:50:00 +0100 3220093 http://www.medworm.com/index.php?rid=3220094&cid=t_218715_77_f&fid=37259&url=http%3A%2F%2Fwww.horizonpress.com%2Fblogger%2F2010%2F01%2Firon-in-cyanobacteria.html Cyanobacteria are dependent on but can also be compromised by metals such as iron. On the one hand the demand for iron for photosystem functionality represents a challenge for the iron uptake machinery in iron limiting environments. On the other hand intoxication by iron causes a severe problem for growth and reproduction. To overcome this dilemma cyanobacteria have developed a regulatory network controlling iron uptake. They produce siderophores, which are distinct from that of other bacteria. Furthermore, the iron metabolism is linked to the nitrogen metabolism as documented for example in Anabaena sp. PCC 7120.Further reading: Iron Uptake and Homeostasis in MicroorganismsFull range of books on microbiology at Microbiology Books (Source: Microbiology Blog: The weblog for microbiologists.... Microbiology Blog: The weblog for microbiologists. blogs http://www.medworm.com/rss/comments.php?id=3220094 Thu, 28 Jan 2010 13:49:00 +0100 3220094 http://www.medworm.com/index.php?rid=3220098&cid=t_218715_77_f&fid=37259&url=http%3A%2F%2Fwww.horizonpress.com%2Fblogger%2F2010%2F01%2Firon-in-vibrio-and-aeromonas.html Vibrio and Aeromonas species are ubiquitous bacteria in aquatic environments worldwide. Many of the species are important pathogens for humans and/or aquatic animals. Several iron acquisition strategies have been developed by vibrios and aeromonads in order to get this essential element for surviving in their host and in aquatic habitats. All species studied so far have the ability to synthesize siderophores to sequester iron from the cell environment and transport it through their respective cognate outer membrane receptors. It has been demonstrated that this capacity is a relevant virulence factor for human and animal pathogens. Furthermore, all species studied can utilize exogenous siderophores, made by other bacteria. Another iron acquisition system described in both genera involves th... Microbiology Blog: The weblog for microbiologists. blogs http://www.medworm.com/rss/comments.php?id=3220098 Thu, 28 Jan 2010 13:46:00 +0100 3220098 http://www.medworm.com/index.php?rid=3220101&cid=t_218715_77_f&fid=37259&url=http%3A%2F%2Fwww.horizonpress.com%2Fblogger%2F2010%2F01%2Firon-in-bordetella.html Upon colonization of the mammalian respiratory epithelium by mucosal pathogens of the genus Bordetella, the host-pathogen interaction causes inflammatory changes, immune activation, and host cell injury. In this dynamic environment, Bordetella cells scavenge the nutritional iron necessary for growth. The three classical Bordetella species produce the siderophore alcaligin. In addition, they can utilize xenosiderophores that could be produced by commensals or other microbes that transiently inhabit the nasopharynx. As infection progresses, extravasation of immune cells, erythrocytes and serum to the mucosal surface can occur, exacerbated by the damaging action of Bordetella toxins, thus providing iron sources such as transferrin and heme compounds to the microbe. The three characterized Bor... Microbiology Blog: The weblog for microbiologists. blogs http://www.medworm.com/rss/comments.php?id=3220101 Thu, 28 Jan 2010 13:42:00 +0100 3220101 http://www.medworm.com/index.php?rid=2156736&cid=t_218715_111_f&fid=36048&url=http%3A%2F%2Fwww.aheartylife.com%2F2009%2F02%2F02%2Fanorexia-affects-the-heart%2F   Anorexia affects the whole body, when the body is deprived of the nutrients that it requires it will start using muscles for energy. Due to the fact that the heart is a muscle, it will over time lose its ability to do normal functions. When a person becomes anorexic their heart starts to beat at a slower rate causing a multitude of problems. As a result of the problems they can go into shock and low blood pressure will also occur.   When depriving the body of the food that it needs, iron deficiency develops. The lack of iron will lead to anemia, which will make delivering oxygen throughout the body more difficult. The result of the anemia will be exhaustion, shortness of breath as well as heart infections and palpitations. A poorly-functioning cardiovascular system also m... A Hearty Life blogs http://www.medworm.com/rss/comments.php?id=2156736 Mon, 02 Feb 2009 17:33:18 +0100 2156736