Tyrosinase Hydroxylase

As I peruse Google Scholar looking for articles concerning tyrosinase hydroxlase, I find the most recent article dated 2005; nearly nineteen years ago. How is that?

Tyrosine Hydroxylase is the enzyme responsible for the production of neuromelanin. Neuromelanin specifically in the substantia nigra and locus coeruleus within the third and fourth ventricles of the brain is vital to memory and cognition. Why isn’t more written about this extremely important enzyme which has a significant role in the sapiens aspect of Homo Sapiens Sapiens?

Exactly.