Arsenic also increases caspase activity which then induces apoptosis. Vasopressin induces differentiation of stem cells into cardiomyocytes and promotes heart muscle homeostasis. Wnt signaling induces blood formation from stem cells. HSV-1, upon infecting host cells, induces inflammation and oxidative stress. Thus, by inhibiting COX-1/2, naproxen induces an anti-inflammatory effect. However, tamoxifen induces the metabolism of letrozole and significantly reduces its concentrations. It not only induces biofilm formation, but also increases virulence in pneumonia and meningitis. Furthermore, C-PC induces apoptosis. In turn, this obstruction induces infiltration and reduces eroding. This is the opposite of pathological stimulant use, which induces decreased striatal DRD2 density. Exposure to chemical agents that cause DNA damage also induces cellular aggregation. At high doses, however, methylene blue actually induces methemoglobinemia, reversing this pathway. Also, ATP binding induces substantial conformational changes in the TMDs. Phenytoin induces metabolizing enzymes in the liver. It also induces symptoms in humans that mimic schizophrenia.