The present invention relates to a method for isolating and identifying the nucleotide sequence of the human gene for the type IV collagen 5 chain. The tubing may be located downhole and may have a solid wall or a slotted wall. The methods provide damaged interstitial cells of Cajal with trophic factors via vagal afferent nerve fibers, thereby reversing ICC damage, and as a consequence improving gastric motility. An insulating layer is disposed adjacent said first and said second sourcedrain regions and said channel region, serving as the insulating material of the SOI device. An elongate lift arm pivotally connected to the vertical frame members extends angularly upward and rearward therefrom toward the platform and has a pair of shoulder pads at its outer end positioned a distance above the platform, with a first and second pair of lateral hand grips near each end of the pads for griping the bar in two positions.