Retraction notices

Proteasome-Dependent Degradation of Guanosine 5’-Triphosphate Cyclohydrolase I Causes Tetrahydrobiopterin Deficiency in Diabetes Mellitus

Type

Retraction

Notice date

1/30/2026 0:00

Journal

Circulation

Publisher

American Heart Association

Notice DOI

10.1161/cir.0000000000001420

Original paper DOI

10.1161/circulationaha.106.684795

Reasons

• Concerns/Issues about Image
• Concerns/Issues about Results and/or Conclusions
• Duplication of/in Image
• Euphemisms for Duplication
• Investigation by Company/Institution

Matching venue names

Name match only, not an authoritative journal identifier.

• Circulation