However , other studies have indicated that no such correlation exists .
Some studies indicate that the length of the polyglutamine tract is inversely correlated with transcriptional activity in the AR protein , and that longer polyglutamine tracts may be associated with infertility and undermasculinized genitalia .
Other studies have indicated that no such correlation exists .
Some studies indicate that the length of the polyglutamine tract is inversely correlated with transcriptional activity in the AR protein , and that longer polyglutamine tracts may be associated with infertility and undermasculinized genitalia .