uniformly integrable

[Juju]

Hallo!
Is the following sequence of integrable random variables $\displaystyle (X_h)_{h \in [0,1]}$ also uniformly integrable?

$\displaystyle X_h=\prod\limits_{n=1}^{\frac{T}{h}}(1+\alpha_{(n-1)h}(\exp\{\mu_{(n-1)h}h+ \sigma (W_{nh}-W_{(n-1)h})\} -1))^\gamma$
whereas
$\displaystyle W$ is a standard Brownian motion,
$\displaystyle \sigma$ a constant \(\displaystyle \in \matbb{R}_+,\)
$\displaystyle \alpha_t$ is a random variable with values in [0,1],
$\displaystyle \mu_t$ is a standard-normal distributed random variable and $\displaystyle \mu_t$ is continous in $\displaystyle t$
[0,T] is the time interval and it is required that \(\displaystyle N:=\frac{T}{h} \in \matbb{N}\) and
$\displaystyle \gamma$ is a constant $\displaystyle \in (0,1)$

I also know that $\displaystyle X_h$ converges in probability for $\displaystyle h \to 0$ to a integrable random variable $\displaystyle X$.
I've no idea how to show it.
Can anybody help me?