{
  "id": 12404100,
  "title": "Brain stimulation timing may shape memory outcomes in Parkinson's patients with GBA1 mutations",
  "url": "https://urgent.news/2026/10/06/brain-stimulation-timing-may-shape-memory-outcomes-in-parkinsons",
  "topic": "health",
  "section": "Health & Medicine",
  "published": "2026-10-06T15:00:01.000Z",
  "source": {
    "name": "Medical Xpress",
    "slug": "medical-xpress",
    "url": "https://medicalxpress.com/news/2026-10-brain-memory-outcomes-parkinson-patients.html"
  },
  "original_language": "en",
  "account": "The timing of deep brain stimulation (DBS) surgery significantly impacts cognitive function in Parkinson's disease patients with a specific genetic mutation, according to a new study. The research, led by Dr. Gian Pal and published in Movement Disorders, provides critical guidance for doctors and patients weighing treatment options. Deep brain stimulation is a surgical procedure that uses electrical pulses to alleviate Parkinson's symptoms like tremors and stiffness. Patients with a mutation in the GBA1 gene, the most common genetic risk factor for Parkinson's, often experience early physical symptoms and are prone to cognitive decline. Previous debates have centered on whether GBA1 carriers face accelerated cognitive loss after DBS or if cognitive issues are inherent to the disease. Researchers analyzed data from 343 patients across 10 medical centers in the US and Europe, comparing cognitive outcomes in patients with and without the GBA1 mutation who underwent surgery early or late in their disease progression. They found that patients with the GBA1 mutation who received DBS later experienced a significantly faster cognitive decline compared to those who had surgery earlier. In patients without the genetic mutation, DBS timing did not affect cognitive outcomes. The study identified a crucial window of seven to eight years post-diagnosis for DBS intervention, suggesting that performing the surgery earlier can extend physical mobility while delaying cognitive decline. The genetic mutation's severity did not alter this pattern, indicating timing as the decisive factor. This discovery could shift how neurologists and neurosurgeons evaluate DBS candidates, emphasizing the importance of early genetic testing for Parkinson's patients. By understanding their genetic risk, patients can make informed decisions about DBS, optimizing its benefits for both physical and cognitive health.",
  "summary": "The timing of deep brain stimulation (DBS) surgery is a critical factor in preserving cognitive function for Parkinson's disease patients with a specific genetic mutation, according to a new study by an international team of researchers.",
  "key_points": [
    "Timing of DBS surgery impacts cognitive function in Parkinson's patients with GBA1 mutations.",
    "Patients with GBA1 mutation experience faster cognitive decline post-late DBS.",
    "Seven to eight-year window post-diagnosis crucial for DBS intervention."
  ],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}