Monocytosis is an increase in the number of monocytes circulating in the blood. When circulating in the bloodstream and inactivated, neutrophils are spherical. These leukemic cells depend on circulating asparagine. The result is that high levels of circulating epinephrine cause vasoconstriction. Though vasectomy results in increases in circulating immune complexes, these increases are transient. Lactiferous duct development occurs in females in response to circulating hormones. Very low numbers of circulating T cells are seen. This results in a net effect of less LDL circulating in blood. Tissue factor binds to circulating factor VIIa. However, some iron is circulating in the serum. Maintrac uses an approach based on microscopic identification of circulating tumor cells. A viruses that are different from currently circulating human influenza H1 and H3 viruses. A concern is the presence of circulating vaccine-derived polioviruses. Recently, Indonesia has seen an increase in the amount of fake news circulating social media. Consequently, rumors of an impending reunion were circulating on the Internet.