Stem Cells and Nanotechnology in Spinal Injury Repair: Difference between revisions

[[File:Stem-cells.jpg|thumb|150px|left|Stem cells replicated in a lab.]] Stem cells were explored for the treatment of multiple sclerosis, an autoimmune condition in which the immune system incorrectly saw the myelin sheath surrounding nerve cells as foreign and began attacking this protective coating, resulting in damage to the nerve cells and leading to slowing of messages to and from the brain. The use of mesenchymal stem cells has been shown to repair this damage as well as repairing the immune system, preventing further attacks. These cells are found in several places in the humanoid body, including in bone marrow, skin, and fat tissue and they produce cells that help other stem cells to function correctly. The theory behind the application of this method is that a scientist expands the cells in a laboratory and injects them into the space surrounding the spinal cord (intrathecal) with an end goal of inhibiting immune response and augmenting tissue repair (National Multiple Sclerosis Society, 2394).

[[File:Borg-nanoprobe.jpg|right|thumb|150px|Nanotechnology schematics.]] Nanotechnology has also found applications in medicine since the early 21st century when mankind first imagined the use of nano (mini) robots to repair the body at a cellular level. One of the most progressive uses of the technology was engineered nanoparticles designed to deliver a variety of elements such as heat and drugs to specific cells, leading to direct treatment of these cells in hopes of reducing damage to healthy cells in the body and allowing for earlier detection of disease or mutations in cells. (Nanotechnology in Medicine: Nanomedicine, 2394).  

[[File:Genetronicreplicator.jpg|left|thumb|100px| Genetronic replicator constructed by Dr. Russel in 2368]] Innovations in this field are fairly recent. The first functioning genetronic replicator was designed and constructed by Doctor Toby Russel in the mid-24th century. Dr. Russel's theory was that the device could scan a person's DNA and damaged organs, then using this information to replicate a new healthy organ. The first recipient to survive the use of this technology was a Klingon male, Worf, in 2368. He was struck by a falling container and, as a result, was partially paralyzed when the container broke his spine. In the case of the Klingon male, Dr. Russel proposed the replication of a new spinal column to give the male full mobility back. The patient nearly died during the operation, but survived due to redundancies in his biological systems. The process was later refined by Doctor Simon Tarses when it was used in combination with nanotechnology to repair the damaged portions of a Bajoran female's spine when it was severed by Taran'atar's attack (Memory Beta, 2394).  

[[File:Laelspinalinjury_beforesurgery.jpeg|left|thumb|150px| Lael's spinal injury before surgery.]] As can be seen by the patient's x-ray immediately following her injury, she suffered broken lower lumbar vertabrae and nerve damage as a result of her fall. Though doctors<br />were able to reconstruct most of her damaged spinal column, the fragile nature of the vertabrae combined with the severe nerve damage offered no hope that the patient would be able to regain her mobility. This was only achieved by the introduction of specifically-programmed nanites which were able to reverse the nerve damage and strengthen the vertabrae. However, the nature of the injury resulted quicker-than-usual degradation of nerve fibers and already-weak bone. Despite daily injections of nanites with the intention of slowing the damage, all attempts have proven to do so only temporarily. It was estimated that without drastic action, the patient would lose mobility completely by age 30. [[File:Laelspinalinjury_postsurgery.jpeg|150px|right|thumb|Lael's spinal injury after surgery.]]