Castle (gastric) factors, named after the American physician and physiologist W. B. Castle, are biologically active chemical compounds which stimulate haematopoiesis (formation of blood cellular components). There are two distinct factors:
Extrinsic factor, much more commonly known as vitamin B12
Intrinsic factor, a glycoprotein produced by the parietal cells of the stomach, which is necessary for the absorption of vitamin B12
Topics referred to by the same term
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Castle (gastric) factors, named after the American physician and physiologist W. B. Castle, are biologically active chemical compounds which stimulate...
it to the mainland. The castle is surrounded by extremely steep drops on either side, which may have been an important factor to the early Christians...
Peckforton Castle is a Victorian country house built in the style of a medieval castle. It stands in woodland at the north end of Peckforton Hills one...
Sleeping Beauty Castle is a fairy tale castle at the center of Disneyland and formerly at Hong Kong Disneyland. It is based on the late 19th century Neuschwanstein...
The fourth season of American crime-comedy-drama television series Castle was ordered on January 10, 2011, by ABC. The season aired from September 19,...
indisputably belong in a list of castles and those that do not. The criteria adopted for inclusion in the list include such factors as: how much survives from...
Chillon Castle (French: Château de Chillon) is an island medieval castle located on Lake Geneva, south of Veytaux in the canton of Vaud. It is situated...
Balmoral Castle (/bælˈmɒrəl/) is a large estate house in Aberdeenshire, Scotland, and a residence of the British royal family. It is near the village of...
a factor leading to Castle Burgajet falling into ruin. Before King Zog was forced to flee Albania, he had an ambitious plan to rebuild the Castle but...
Bamburgh Castle, on the northeast coast of England, by the village of Bamburgh in Northumberland, is a Grade I listed building. The site was originally...
Castle Drogo is a country house and mixed-revivalist castle near Drewsteignton, Devon, England. Constructed between 1911 and 1930, it was the last castle...
Blair Castle (in Scottish Gaelic: Caisteil Bhlàir) stands in its grounds near the village of Blair Atholl in Perthshire in Scotland. It is the ancestral...
The castle was heavily damaged by Iraqi bombs during the Iran–Iraq War, but has since been restored. "Natural factors added to threats to Shush Castle"....
Sansone (born February 14, 1961) is an American fitness instructor from New Castle, Pennsylvania. Since her first video was published in 1980, she has released...
(attraction factors or "pull factors"). "Push-pull factors" are the reasons that push or attract people to a particular place. "Push" factors are the negative...
A castle doctrine, also known as a castle law or a defense of habitation law, is a legal doctrine that designates a person's abode or any legally occupied...
Trump Castle took a sharp decline in 1990 due to competition from its newly opened sister property, Trump Taj Mahal, as well as broader economic factors such...
The Crazy Castle series is a platform game series created by Kemco and released on the Famicom Disk System, Nintendo Entertainment System, Game Boy, Game...
Castle Bravo was the first in a series of high-yield thermonuclear weapon design tests conducted by the United States at Bikini Atoll, Marshall Islands...
Shimabara Castle (島原城, Shimabara-jō), also known as Moritake Castle (森岳城, Moritake-jō) and Takaki Castle (高来城, Takaki-jō), is a Japanese castle located...
Castle is an American comedy-drama police procedural television series on ABC which was created by Andrew W. Marlowe. It stars Nathan Fillion as Richard...
eastern Japan, away from the Toyotomi power base in Osaka. He built his castle in the fishing village of Edo (now Tokyo). He became the most powerful daimyo...
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