In recent studies, Pigment Dispersing Factor has been implicated in the nocturnal rhythms of crickets.
Pdf has also been studied in the cricket Gryllus bimaculatus; studies proved that Pdf is not necessary for generating the circadian rhythm, but involved in control of nocturnal behavior, entrainment, and the fine-tuning of the free-running period of the circadian clock.
•
Using liquid chromotography in conjunction with several biological assays, PDF, was also isolated in the insect Leucophaea maderae, a cockroach.
The O'Reilly Factor | The X Factor (UK) | Microphthalmia-associated transcription factor | The X Factor | Fear Factor | Max Factor | The X Factor (TV series) | B-cell activating factor | Epidermal growth factor receptor | Psi Factor: Chronicles of the Paranormal | Astro Boy: Omega Factor | twist transcription factor | The X Factor (U.S.) | The X Factor (UK TV series) | The X Factor (UK series 2) | The Omega Factor | The Butch Factor | The Adonis Factor | Sp1 transcription factor | Rheumatoid factor | PSI Factor | O'Reilly Factor | Insulin-like growth factor 1 | Factor Three | factor | ETX (form factor) | epidermal growth factor receptor | Britain's Got the Pop Factor... | Vascular endothelial growth factor A | The Vengeance Factor |