You May Soon Be Able to Regrow an Arm or Leg?

The Mexican axolotl salamander can regrow lost limbs in a matter of weeks which includes the bones, muscles, nerves and the whole enchilada. When scientists sought to map its DNA to figure out how it does it, to their shock, it turned out to be more than 10 times bigger than that of human DNA. Indeed, it had 32 billion base pairs of DNA making it the largest genome ever sequenced, according to Nature.

The project has taught us a few new lessons. A gene called PAX3, was previously considered to be essential to the development of an organism. This gene was completely missing from the genome. Instead, the related gene PAX7 appears to have taken over those critical functions. What they discovered was several genes unique to axolotls and other amphibians that are linked to regeneration.

Well, they may be still decades away from regrowing limbs, but sequencing the axolotl genome was a giant step forward for mankind in decoding how this ability to regrow limbs can evolve and function. It may also lead to the development of new methods to heal wounds faster.

Latest Posts

Trump’s Tariffs are Winning

  I have said on various podcasts that a 10% tariff is really a tariff. Beyond that, it is political to force free trade. Most countries are dropping tariffs on [...]
Read more

Tariffs are NOT Reciprocal

How did the Trump Administration come up with these tariff rates? Why would a nation like Madagascar, for example, with a small economy, be hit with a 47% tariff? Reciprocal [...]
Read more

Eric Adams Leaves the Democratic Party

New York City Mayor Eric Adams, the man who fought tooth and nail to maintain sanctuary city status for migrants, has abandoned the Democratic Party. The Democrats have become so [...]
Read more

Trump vs Putin

https://www.armstrongeconomics.com/wp-content/uploads/2025/04/Zelensky-Reniggs.mp4   QUESTION: I take it you agree with Putin that Zelensky is not legitimate and that Trump is wrong. Would you care to explain your position? WG ANSWER: I [...]
Read more