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Additionally, pentamidine does not reach curative levels in the cerebrospinal fluid. [10] It has a volume of distribution of 286-1356 liters when given intravenously and 1658-3790 liters when given intramuscularly. [20] Inhaled pentamidine is mainly deposited into the bronchoalveolar lavage fluid of the lungs. [19]
[1] [2] The body then traps the released iron and stores it as hemosiderin in tissues. [3] Hemosiderin is also generated from the abnormal metabolic pathway of ferritin. [3] It is only found within cells (as opposed to circulating in blood) and appears to be a complex of ferritin, denatured ferritin and other material.
The action of drugs on the human body (or any other organism's body) is called pharmacodynamics, and the body's response to drugs is called pharmacokinetics. The drugs that enter an individual tend to stimulate certain receptors, ion channels, act on enzymes or transport proteins. As a result, they cause the human body to react in a specific way.
Beta blockers exert their pharmacological effect, decreased heart rate, by binding to and competitively antagonising a type of receptor called beta adrenoceptors. [1]In pharmacology, the term mechanism of action (MOA) refers to the specific biochemical interaction through which a drug substance produces its pharmacological effect. [2]
Bumetanide, sold under the brand name Bumex among others, is a medication used to treat swelling and high blood pressure. [2] This includes swelling as a result of heart failure, liver failure, or kidney problems. [2]
The BBB is composed of endothelial cells restricting passage of substances from the blood more selectively than endothelial cells of capillaries elsewhere in the body. Astrocyte cell projections called astrocytic feet (also known as "glia limitans") surround the endothelial cells of the BBB, providing biochemical support to those cells. [9]
Phospholipids: Phospholipids are a major component of the lipid bilayer of the cell membrane and are found in many parts of the body. [25] Sphingolipids: Sphingolipids are mostly found in the cell membrane of neural tissue. [18] Glycolipids: The main role of glycolipids is to maintain lipid bilayer stability and facilitate cell recognition. [25]
Not all body tissues have the same blood supply, so the distribution of the drug will be slower in these tissues than in others with a better blood supply. In addition, there are some tissues (such as the brain tissue) that present a real barrier to the distribution of drugs, that can be breached with greater or lesser ease depending on the ...
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