Cu(OH)₂ Nanopesticides May Trigger Heart‑Like Problems in Mice

Nanopesticides are becoming common in modern farms because they fight pests well and behave differently from regular chemicals. Their long‑lasting nature means they can stay in the environment and build up in living organisms. Scientists are now worried that these tiny particles might harm the heart.Recent lab work shows that a copper hydroxide nanopesticide can set off damage in mice that looks like heart failure. The researchers think the particles interfere with two tiny RNA molecules, mmu‑miRNA‑590‑3p and mmu‑miRNA‑338‑5p, which normally help regulate a key cell pathway called Wnt/β‑catenin. When these RNA molecules are disrupted, the pathway goes awry, leading to heart‑related problems. The study highlights that even small amounts of nanopesticides could pose a risk to cardiovascular health. It also points out the need for more detailed safety checks before these particles are widely used in agriculture.