In Islam, taking care of our physical and mental well-being is considered an amanah (trust) from Allah (SWT), and seeking knowledge to cure diseases is a noble pursuit. In a major stride for modern medical science, Iranian researchers at the University of Tehran have uncovered groundbreaking molecular clues regarding Alzheimer’s disease, offering fresh hope for millions of patients and their families worldwide.
Beyond Memory Loss: A Failure to Heal
For decades, Alzheimer’s has been primarily understood as a disease that destroys existing brain cells (neurons). However, a new study led by Professor Bahram Gliaei at the University of Tehran’s Institute of Biochemistry and Biophysics reveals a deeper issue: the disease also cripples the brain’s natural ability to repair itself.
Using advanced single-cell RNA sequencing technology, the research team analysed individual brain cells to see how gene activity changes in Alzheimer’s patients. Unlike older methods that examine cells in bulk, this cutting-edge technology allowed scientists to pinpoint exactly how different brain cells react to the disease at a microscopic level.
The Stem Cell Shift
The human brain possesses neural stem cells, which are responsible for generating new nerve cells—a process known as neurogenesis. This process is crucial for maintaining and repairing brain networks, especially in the hippocampus, the region responsible for learning and memory.
Professor Gliaei explained that the study found significantly reduced activity in the genes required to maintain these neural stem cells and guide their development into healthy neurons.
In a healthy brain, these stem cells become new neurons. But in samples affected by Alzheimer’s, the researchers discovered that these stem cells are misdirected. Instead of becoming new neurons, they increasingly develop into astrocytes—support cells that merely maintain the brain’s environment. Furthermore, the decline in the overall population of neural stem cells severely limits the brain’s capacity to regenerate on its own.
A New Horizon for Treatment
This discovery shifts the paradigm of Alzheimer’s research. By understanding that the disruption of the brain’s natural regeneration mechanisms is a key factor in the gradual deterioration of neural networks, scientists can now look beyond simply preventing cell death.
The findings open the door to a new generation of treatments aimed at stimulating neurogenesis—essentially encouraging the brain to heal itself and restore its natural capacity to produce new, functioning neurons.
May Allah (SWT) bless the researchers and grant complete shifa (healing) to those suffering from Alzheimer’s, bringing comfort to their families and caregivers.
Reference: PressTv