Reduced levels of brain-derived neurotrophic factor (BDNF) are thought to contribute to the pathophysiology of Rett syndrome (RTT). a severe neurodevelopmental disorder caused by loss-of-function mutations in the gene encoding methyl-CpG-binding protein 2 (MeCP2). In Mecp2 mutant mice. BDNF deficits have been associated with breathing abnormalities. https://bellfordtoysandhobbiers.shop/product-category/display-figure/