To gain an insight into the relationship between CH‐mediated dysmorphogenesis of the hippocampus and TRPC6 deficiency, CH rat pups were successfully induced by adding 0.02% methimazole (MMI) to the drinking water of dams from gestation day 9 (E9) to postnatal day 21 (P21), as was shown in the previous works (Figure 1A) [22, 23]. This evidence concerns the gene TRPC6 and cyclic hematopoiesis.