Arginase 1 (ARG1), an enzyme expressed by keratinocytes and involved in skin barrier function, was investigated in relation to atopic dermatitis (AD), a condition characterized by impaired barrier ...

The value of the first non-null parameters, which can be a string, int, array, or object. Null if all parameters are null. arg1 Yes int, string, array, or object The first value to check for equality.