Introduction to Stem Cells in Spinal Disc Repair
Spinal disc herniations are a common cause of lower back pain, affecting millions of people worldwide. Traditional treatments for this condition often involve surgery, which can be invasive and have potential complications. Terapia com células-tronco has emerged as a promising alternative approach, offering the potential for non-invasive repair of damaged spinal discs.
Pathophysiology of Lumbar Herniations
Lumbar disc herniations occur when the soft, gelatinous center of an intervertebral disc pushes through the tough outer layer of the disc. This can cause pressure on nearby nerves, leading to pain, dormência, and weakness in the lower back and legs. The exact cause of disc herniations is not fully understood, but it is thought to be related to factors such as age, genetics, and mechanical stress on the spine.
Stem Cells for Lumbar Disc Herniation Repair
Stem cells are undifferentiated cells with the ability to develop into a variety of specialized cell types. This makes them a promising candidate for spinal disc repair, as they could potentially replace damaged cells within the disc and restore its normal function.
Types of Stem Cells Used in Spinal Disc Repair
Several types of stem cells have been investigated for use in spinal disc repair, incluindo:
- Células-tronco mesenquimais (MSC): These cells are derived from various tissues, such as bone marrow, tecido adiposo, e sangue do cordão umbilical.
- Células-tronco pluripotentes induzidas (iPSCs): These cells are derived from adult cells that have been reprogrammed to an embryonic-like state.
- Células-tronco embrionárias (CES): These cells are derived from human embryos.
Stem Cell Delivery Methods for Lumbar Disc Repair
Stem cells can be delivered to the damaged spinal disc using various methods, incluindo:
- Direct injection: Stem cells are injected directly into the herniated disc.
- Surgical implantation: Stem cells are delivered to the disc using a surgical procedure.
- Microdiscectomy: Stem cells are injected into the disc after a small portion of the herniated disc is removed.
Preclinical Studies on Stem Cell Therapy for Lumbar Herniations
Preclinical studies in animal models have shown promising results for terapia com células-tronco in lumbar disc herniation repair. These studies have demonstrated that stem cells can reduce pain, improve disc function, and prevent further disc degeneration.
