A Source Of Stem Cells From Men

A Source Of Stem Cells From Men 

 Stem cells from adult human testes normally produce only sperm, but when cultured in the lab with special growth factors, they begin to resemble embryonic stem cells and can differentiate into many adult cell types.

Stem cells from human testes could be used for personalized medicine.  Adult stem cells that behave much like embryonic ones have been isolated from human testes, raising hopes for a new source of versatile stem cells without genetic manipulation or the destruction of embryos. If the new stem cells can be used therapeutically, a simple testicular biopsy could provide the starting material for personalized regenerative medicine.

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Cornell Research Shows Evolution Of Milkweed Defense System

Genetic Analysis Shows Evolution Of Milkweed Defense System 

A monarch butterfly caterpillar gets ready to devour a milkweed leaf. 

The adage that your enemies know your weaknesses best is especially true in the case of plants and predators that have co-evolved: As the predators evolve new strategies for attack, plants counter with their own unique defenses.

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Online Auctions for Cloning Dogs

Online Auctions for Cloning Dogs

Very soon all of our dogs will begin to look like Tom Cruise

A California company is planning a string of online auctions next month to clone five dogs, with the bidding to start at $100,000. Scientists consider dogs among the most difficult animals to clone because they have an unusual reproductive biology, more so than humans.

But the company behind the auctions, BioArts International, maintains that the technology is ready, and it is calling the dog cloning project Best Friends Again. It has scheduled the auctions for June 18.

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