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Animals and humans naturally produce some hydrogen sulfide in their body; researchers have proposed that the gas is used to regulate metabolic activity and body temperature, which would explain the above findings. [18] Two recent studies cast doubt that the effect can be achieved in larger mammals.
It is a rare blood condition in which the β-pyrrole ring of the hemoglobin molecule has the ability to bind irreversibly to any substance containing a sulfur atom. [ 1 ] [ 2 ] When hydrogen sulfide (H 2 S) (or sulfide ions ) and ferrous ions combine in the heme of hemoglobin, the blood is thus incapable of transporting oxygen to the tissues.
Blood viscosity is a measure of the resistance of blood to flow. It can also be described as the thickness and stickiness of blood. This biophysical property makes it a critical determinant of friction against the vessel walls, the rate of venous return, the work required for the heart to pump blood, and how much oxygen is transported to tissues and organs.
Anhydrous aluminium sulfate is the main ingredient and acts as a vasoconstrictor in order to disable blood flow. The stick is applied directly to the bleeding site. The high ionic strength promotes flocculation of the blood, and the astringent chemical causes local vasoconstriction
Blood resistance varies depending on blood viscosity and its plugged flow (or sheath flow since they are complementary across the vessel section) size as well, and on the size of the vessels. Assuming steady, laminar flow in the vessel, the blood vessels behavior is similar to that of a pipe.
Here, arylsulfatase A hydrolyzes the sulfate group. [1] However, in order for this reaction to be carried out, a sphingolipid activator protein such as saposin B must be present. [2] Saposin B extracts sulfatide from the membrane, which makes it accessible to arylsulfatase A. [1] Arylsulfatase A can then hydrolyze the sulfate group.
In bacteria, sulfate and thiosulfate are transported into the cell by sulfate permeases where it can then be reduced and incorporated into biomolecules. [14] In some organisms (e.g., gut flora , cyanobacteria , and yeast ), [ 15 ] assimilatory sulfate reduction is a more complex process that makes use of the enzymes ATP sulfurylase, APS kinase ...
Common side effects include low blood pressure, skin flushing, and low blood calcium. [1] Other side effects may include vomiting, muscle weakness, and decreased breathing. [4] While there is evidence that use during pregnancy may harm the baby, the benefits in certain conditions are greater than the risks. [5]