An LAS-type float glass, which is substantially free of As2O3 andor Sb2O3 and precipitates a \u03b2-quartz solid solution or a \u03b2-spodumene solid solution as a main crystal by heat treatment, wherein, when C1 mass % represents the content of SnO2 at a glass surface, C0 mass % represents the content of SnO2 at a depth of 0. A plurality of inkjet nozzles is arranged on the modules such that rows of the nozzles span the width of the page, with at least one row of nozzles in fluid communication with respective channels, the nozzles capable of being fired to eject ink from their associated channels, the nozzles of each row on an associated module defining a segment of nozzles. The present invention further provides for methods of inhibiting TADG-15 expression andor protease activity, methods of detecting TADG-15 mRNA andor protein and methods of screening for TADG-15 inhibitors.