In 1968 I had the great joy of seeing a fantastic movie: 2001 A Space Odyssey. In the opening scenes, a group of fearful humans trying to overcome the dangers of the night, populated by the threats of a hostile world. The light of the new day brought them a surprise.
A huge standing stone on the bones scattered. Our ancestors came and after many doubts (which centuries later would have Descartes) dared to touch her.
One of our loved grandparents loved gripped one of the bones and began to break the others, for the first time using an offensive weapon.
That weapon thrown into the air turned into a spaceship (Von Braun).
If we follow the plot of the movie we attribute to the stone the bird of the dominion over the earth by some poor frightened animals.
No. These weak ancestors and we dominated the Earth thanks to bone marrow.
Million years ago, when we came down from the trees and took a chance to cross the plains, populated by stronger animals us we had to be very careful.
We had to learn to be witnesses. Witnesses hidden. Witnesses cowards. Looking like an animal ate another. And as a third finished peeling back the flesh from the bones.
And after several hours of agony, totally unprotected and alone, we faced those few bones left to the open sky
And then we we gave ourselves to a fabulous feast: suck the marrow from the bones left by the red meat eaters.
We insignificant animals, fearful, hidden during the day, eternal horror walkers, began to learn that our brain was in the marrow, in the caracú.
And this is a formidable instruction nature: A mustard seed is not just a mustard seed. A mustard seed is the beginning, a new beginning.
The marrow is a real superhero. Work for us tirelessly: Red blood cells (erythrocytes) carry oxygen to the tissues. Platelets or thrombocytes (derived from megakaryocytes) help prevent bleeding and aid in clotting of blood.
Granulocytes (neutrophils, basophils and eosinophils) and macrophages (collectively known as myeloid cells) fight infections from bacteria, fungi, and other parasites. They also remove dead cells and remodel tissue and bones. B-lymphocytes produce antibodies, while T-lymphocytes can directly kill or isolate invading cells. RBC live for around 170 days and rest are shorter lived and need to be replenished continuously. An average human requires approximately one hundred billion new hematopoietic cells each day. This is performed by the Hematopoietic Stem Cells (HSCs).
A few weeks ago Scientists discovered an antibody that can turn stem cells from a patient’s bone marrow directly into brain cells, a potential breakthrough in the treatment of neurological diseases and injuries.
As we can see, we are what we are, thanks to Caracu.
Written By: Guillermo Compte