However, LAM is antigenic, eliciting a strong humoral antibody response [ 22] and so it is likely that LAM largely exists within the circulation in the form of circulating immune complexes which would not readily cross the glomerular basement membrane.
GLP-1 is rapidly inactivated within the circulation predominately by DPP4 and has a circulating half-life of only 1 to 2 minutes.
Certain antibodies were identified at elevated levels in plasma (relative to synovial fluid), suggesting that these may emanate either from immune cells within the circulation or from other tissues around which blood circulates.
Fibrin is the predominant protein constituent of blood clots formed from fibrinogen, a large glycoprotein present within the circulation.
Cold air from the remnants of a cold front became entrained within the circulation; however, the cold air gradually warmed.
By the late morning hours of September 17, an eyewall developed within the circulation, indicating that Georges was nearing hurricane-status.
Several hours later, temperatures associated with forecast models indicated that the warm core within the circulation had ascended to the upper levels of the cyclone.
It slowly organized, and by September 3 the convection within the circulation had sufficiently organized for the system to be classified as Tropical Depression Six, while located about 1150 miles (1850 km) east of the southernmost Lesser Antilles.
The depression degenerated into a remnant low the next day and this remnant continued to loop cyclonically and could be tracked for a further day or two within the circulation of the non-tropical system.
The renal glomerulus is capable of filtering large volumes of plasma while efficiently retaining most proteins within the circulation [2].
Under circumstances of increased cellular stress, such as active infections, malignancies and tissue trauma, increased amounts of DNA can be observed within the circulation, suggesting that the capacity for DNA elimination is exceeded [14], [15], [16].
