 This study investigated the impact of aluminum oxide nanoparticles on locus testes and found that they can cause DNA damage and cell death. The researchers also discovered that the use of a cockroach extract could reduce the harmful effects of the nanoparticles. This suggests that cockroaches may be useful in developing strategies to protect against the negative health effects of nanoparticle exposure. This article was authored by Ezra A. Arafat, Doa SL Sayed, Hussain K. Hussain, and others.