Digitalis lactone and a triple-repeating sugar called a glycoside. Digitalis works by inhibiting sodium-potassium ATPase. This results in an increased intracellular concentration of sodium ions and thus a decreased concentration gradient across the cell membrane. This increase in intracellular sodium causes the Na/Ca exchanger to reverse potential, i.e., transition from pumping sodium into the cell in exchange for pumping calcium out of the cell, to pumping sodium out of the cell in exchange for pumping calcium into the cell. This leads to an increase in cytoplasmic calcium concentration, which improves cardiac contractility. Under normal physiological conditions, the cytoplasmic calcium used in
Read's Drug Store two walls; preservationists argued that both plans were insufficient. Activists want the building preserved and turned into a civil rights museum. They accuse the city of "demolition by neglect": avoiding minor repairs and allowing the building to collapse in order to make room for development. Support for preserving the building comes from Baltimore Heritage, a non-profit historical preservation group, and the Jewish Museum of Maryland, which celebrates the Nattans' decision to desegregate early. Read's Drug Store Read's Drug Store was a chain of stores based in Baltimore, Maryland. Read's Drug Store was founded by William Read. He sold it to