"Prenatal exposure to nanoparticles may adversely affect sperm production in offspring, according to a Danish study on mice. ... Meanwhile, an Indian study on mice suggests a link between daily oral exposure to silver nanoparticles and weight loss. Scientists from Utter Pradesh used transmission electron microscopy to reveal that the nanoparticles may have damaged cells in the intestine as well as intestinal glands. The study is published in Toxicology Mechanisms and Methods."