increased enzyme/coenzyme level abnormal N-acetylgalactosamine-4-sulfatase level increased N-acetylgalactosamine-4-sulfatase protein level increased N-acetyl-D-galactosamine-4-sulfate 4-sulfohydrolase level increased level of the enzyme that catalyzes the hydrolysis of the 4-sulfate groups of the N-acetyl-D-galactosamine 4-sulfate units of chondroitin sulfate and dermatan sulfate increased acetylgalactosamine 4-sulfatase level MP:0020274 increased N-acetylgalactosamine-4-sulphatase level increased N-acetylgalactosamine 4-sulfate sulfohydrolase level increased chondroitinsulfatase level increased arylsulfatase B level