  We estimate the consequences of finite masses of pseudoscalar mesons on the
decay rates of scalar glueballs in the Witten-Sakai-Sugimoto model, a top-down
holographic model of low-energy QCD, by extrapolating from the calculable
vertex of glueball fields and the eta' meson which follows from the
Witten-Veneziano mechanism for giving mass to the latter. Evaluating the effect
on the recently calculated decay rates of glueballs in the
Witten-Sakai-Sugimoto model, we find a strong enhancement of the decay of
scalar glueballs into kaons and eta mesons, in fairly close agreement with
experimental data on the glueball candidate f0(1710).
