University of Copenhagen professor Milena Penkowa faked 15 neuroscience papers, lost PhD

Milena Penkowa was a neuroscience professor at the University of Copenhagen's Panum Institute. She was considered a rising star in Danish brain research, publishing extensively on the role of metallothioneins in neurological recovery. At age 37, she was one of the youngest professors in Denmark.

In 2010, Penkowa was accused of scientific misconduct after graduate students were unable to replicate her results. An investigation by the Danish Committees on Scientific Dishonesty found that she had fabricated data and failed to conduct experiments she claimed to have performed. An international panel concluded that 15 articles contained 'justified suspicion of deliberate scientific malpractice.' She was also convicted of fraud and embezzlement for misspending research grant money. As of 2020, 9 of her papers had been retracted and 4 more carried expressions of concern.

The University of Copenhagen suspended Penkowa in 2010, and she resigned her professorship. The university returned 2 million Danish kroner of a 5.6 million kroner grant to the donor. In September 2017, the university took the extraordinary step of revoking her doctoral degree — a rare sanction that effectively erased her academic credentials. 58 Danish researchers signed a letter demanding an open review of the case.

Fabricated data in 15 articles, convicted of fraud, PhD revoked; 9 retractions and 4 expressions of concern followed.

Penkowa's rapid rise to professor at age 37 was built on a volume of publications that nobody verified — the system rewarded quantity over reproducibility.

Graduate students who could not replicate her results were the ones who detected the fraud, not peer review or journal oversight — the same pattern as many research fraud cases.

The university investigated only after the fraud was publicly exposed, and the international panel took two years to review 15 articles — slow institutional response allowed the damage to spread.

A researcher whose work cannot be replicated by their own graduate students is a liability the system should catch before papers are published, not years later.

The Penkowa case became a landmark in Danish research integrity. The revocation of her doctoral degree was one of the first such actions in European academia. The case also highlighted the vulnerability of neuroscience research to fabrication and the burden placed on junior researchers to expose misconduct by their seniors.