Further comments on "A comparison of different physical stomach models and an analysis of shear stresses and strains in these system" by Zhong and Langrish (2020)

Abstract

Recently, Zhong and Langrish (2020a) presented an excellent review on typical in vitro physical stomach models reported in literature with an emphasis on their structures, materials, peristalsis, shear stress, pros and cons. We read it with great interest and provided further information (Wu & Chen, 2020) on our home-made rat and human stomach systems which were discussed in the review. Zhong and Langrish (2020b) followed up with a response letter to our note providing their observations on the matters. The current letter hopefully provides a sufficient response to their comments. It is believed through this back-and-forth process, the issues of uncertainty are nicely clarified for interested readers.

Keywords: Conflict of interest; Digestion; Physical stomach models; Silicone rubber.