The Prolongation of the Lifespan of Rats by Repeated Oral Administration of Fullerene
(also known as The University of Paris Study or The Baati Study)
Biomaterials, Volume 33, Issue 19, June 2012, Pages 4936-4946. Available Online 10 April 2012
Tarek Baati, Fanchon Bourasset, Najla Gharbi, Leila Njim, Manef Abderrabba, Abdelhamid Kerkeni, Henri Szwarc, and Fathi Moussa
Countless studies showed that fullerene (C60) and derivatives could have many potential biomedical applications. However, while several independent research groups showed that C60 has no acute or sub-acute toxicity in various experimental models, more than 25 years after its discovery the in vivo fate and the chronic effects of this fullerene remain unknown. If the potential of C60 and derivatives in the biomedical field have to be fulfilled these issues must be addressed. Here we show that oral administration of C60 dissolved in olive oil (0.8 mg/ml) at reiterated doses (1.7 mg/kg of body weight) to rats not only does not entail chronic toxicity but it almost doubles their lifespan. The effects of C60-olive oil solutions in an experimental model of CCl4 intoxication in rat strongly suggest that the effect on lifespan is mainly due to the attenuation of age-associated increases in oxidative stress. Pharmacokinetic studies show that dissolved C60 is absorbed by the gastro-intestinal tract and eliminated in a few tens of hours. These results of importance in the fields of medicine and toxicology should open the way for the many possible -and waited for- biomedical applications of C60 including cancer therapy, neurodegenerative disorders, and ageing.
Below are the relevant charts from the above mentioned study that outlines in a schematic / graph the particulars of rat survival.
Possible Mechanisms of Fullerene C60 Antioxidant Action
Biomed Research International. Published online 2013 Oct 8.
V. A. Chistyakov, Yu. O. Smirnova, E. V. Prazdnova, and A. V. Soldatov
“Abstract: Novel mechanism of antioxidant activity of buckminsterfullerene C60 based on protons absorbing and mild uncoupling of mitochondrial respiration and phosphorylation was postulated. In the present study we confirm this hypothesis using computer modeling based on Density Functional Theory. Fullerene’s geroprotective activity is sufficiently higher than those of the most powerful reactive oxygen species scavengers. We propose here that C60 has an ability to acquire positive charge by absorbing inside several protons and this complex could penetrate into mitochondria. Such a process allows for mild uncoupling of respiration and phosphorylation. This, in turn, leads to the decrease in ROS production.”
Full study available here: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3816026/