Upregulation of BKN and histamine by estrogen in combination with hypomethylation (mild increase in homocysteine) may be linked to the pathogenesis of high flow in female dominated POTS, SIBO, MCAS, and EDS
The H-ESI source was operated in positive mode at spray voltage 3,500 or negative mode at spray voltage 2,500 with the following parameters: sheath gas 35 a.u., aux gas 7 a.u., sweep gas 0 a.u., ion transfer tube temperature 320 C, vaporizer temperature 275 C, mass range 70 to 1,000 m/z , full scan MS1 mass resolution of 120,000 FWHM, RF lens at 70% and standard AGC
KET has a plasma half-life of 2.3 0.5 h with a duration of action of IV bolus of 510 min (Cohen et al., 2018)
Impossible to replicate: you cannot recreate conditions or compare against other studies because the internal composition is unknown
Lyophilized: refrigerate at 28 C (35.646.4 F) or freeze at 20 C (4 F)