Search results
Results from the WOW.Com Content Network
Primary bile acid diarrhea (Type 2 bile acid "malabsorption") may be caused by an overproduction of bile acids. [ 5 ] [ 9 ] Several groups of workers have failed to show any defect in ileal bile acid absorption in these patients, and they have an enlarged bile acid pool, rather than the reduced pool expected with malabsorption. [ 10 ]
Bile acid sequestrants are polymeric compounds that serve as ion-exchange resins. Bile acid sequestrants exchange anions such as chloride ions for bile acids. By doing so, they bind bile acids and sequester them from the enterohepatic circulation. The liver then produces more bile acids to replace those that have been lost.
These side effects often lead to low patient compliance. [5] Colesevelam can be used instead of cholestyramine in symptomatic chronic diarrhea due to bile salt malabsorption (bile acid diarrhea), which can be a primary condition, or secondary to Crohn's disease or the postcholecystectomy syndrome. [6] [7] [8]
Colestyramine is commonly used to treat diarrhea resulting from bile acid malabsorption. [2] It was first used for this in Crohn's disease patients who had undergone ileal resection. [3] The terminal portion of the small bowel (ileum) is where bile acids are reabsorbed. When this section is removed, the bile acids pass into the large bowel and ...
High levels of niacin, an essential B vitamin, may raise the risk of heart disease by triggering inflammation and damaging blood vessels, according to new research. This type of supplement may ...
Bile acid sequestrants such as cholestyramine can be effective in chronic diarrhea due to bile acid malabsorption. Therapeutic trials of these drugs are indicated in chronic diarrhea if bile acid malabsorption cannot be diagnosed with a specific test, such as SeHCAT retention.
Bile acid diarrhea (also called bile acid malabsorption) can be secondary to Crohn's disease or be a primary condition. Reduced median levels of FGF19, an ileal hormone that regulates increased hepatic bile acid synthesis, have been found in this condition. [28] FGF19 is potently stimulated by bile acids and especially by OCA. [29]
Bile acids also have hormonal actions throughout the body, particularly through the farnesoid X receptor and GPBAR1 (also known as TGR5). [7] Bile acid synthesis is the only manner in which humans or other mammals may excrete excess cholesterol, as the parent compound of all bile acids is cholesterol. [citation needed]