Definition:

MEND syndrome (male EBP disorder with neurological defects) is an X-linked recessive condition in males with a phenotype remarkable for Dandy-Walker like congenital brain malformation, cataracts, collodion skin and cryptorchidism. Additional findings of hydrocephalus, dysplasia of the corpus callosum, cardiovascular, craniofacial and skeletal anomalies were regularly seen in patients. MEND syndrome is caused by EBP mutations. EBP is an integral membrane protein located mainly in the endoplasmic reticulum, which has dual functions as an enzyme converting cholestenol into lathosterol and as a high-affinity receptor for anti-ischaemic drugs.