Cholesterol, HDL, and LDL in the liver?
Can someone please explain the secretion of cholesterol from the liver and out the small intestine? The terms in bullet point that come up are gallbladder, HDL, LDL, liver, small intestine and oat soluble fibers... I just dont get how they connect :/
Bio exam tomorrow, please help! :(
10 pts best answer
- abijannLv 78 years agoFavorite Answer
The liver makes bile. Bile flows through tube like structures,
known as ducts, from the inside of the liver to the gallbladder
to be stored and concentrated. When our foods we eat reach
the small intestines, hormones are released that signal the
gallbladder to contract and this forces the bile into the common
bile duct to flow to the intestines to emulsify the fats we eat.
This allows the fats (like cholesterol) to be absorbed through
the small intestines into the blood that flows to the liver through
the portal vein. If the patients doesn't take in enough cholesterol
into the body...the liver will make it. Why? because the brain
needs cholesterol and also it is used to make cell membranes.
The cholesterol attaches to the HDL (lipoprotein) to be transported
to the liver from any place in the body. The LDL (lipoprotein)
is what transports it away from the liver into the vessels.
High levels of LDL means a greater chance of the a blockage of
an artery as cholesterol can collect on the vessels walls. That
is why it is known as the "bad cholesterol".
Oat soluble fiber or even flaxseed oil or barley is known to help lower
the cholesterol levels in the body. This may help patients who
are placed on a lower cholesterol diet. However, some people
have hereditary reasons for having high cholesterol and will
not benefit from the diet alone...they will need to take statin
Quotes from this site:
Soluble fiber constitutes a type of fiber able to absorb fluid, which results in the formation of a type of gel. The soluble fiber in this gel can bind with some fatty acids eaten at the same meal and prevent them from being absorbed, which results in lower blood cholesterol levels, especially LDL cholesterol levels, and a smoother elevation of your blood sugar levels after the meal.
Hope this is of some help. Best wishesSource(s): caregiver to a liver transplant patient
- RaeLv 45 years ago
All I know id that one has a higher density (HDL, high density lipid, or fat)), and the other is Low density fat. The one that we have problems with is the High density - I believe - because it sticks against the vein walls, obstructing it. This criteria is debated as we speak, saying that "cholesterol is a protection of the area affected" and that is the reason why it being there.