Concise Review: Human-Animal Neurological Chimeras: Humanized Animals or Human Cells in an Animal?

Human-animal chimeras in biomedical research.

Chimeras are individuals with tissues derived from more than one zygote. Interspecific chimeras have tissues derived from different species. The biological consequences of human-animal chimeras have become an issue of ethical debate. Ironically, human-animal chimeras with human blood, neurons, germ cells, and other tissues have been generated for decades. This has facilitated human biological s...

The patentability of human-animal chimeras.

Human-animal Chimeras: Human Dignity, Moral Status, and Species Prejudice

The creation of chimeras by introducing human stem cells into nonhuman animals has provoked intense concerns. Addressing objections that appeal to human dignity, I focus in this essay on stem cell research intended to generate human neurons in Great Apes and rodents. After considering samples of dignitybased objections from the literature, I examine the underlying assumption that nonhuman anima...

Genetic Engineering of Domestic Animals: Human Prerogative or Animal Cruelty?

Human or Animal Origin

studies should be conducted every 3 months during the first specifications will be established to determine the sucyear of storage, every 6 months during the second year, cessful completion of the manufacturing step before and annually thereafter. continuation of the manufacturing process. This inWhile the testing intervals listed above may be appropricludes material that may undergo further mo...