{
  "$schema": "https://themachinepress.com/schemas/story-v1.schema.json",
  "schema_version": "1.0.0",
  "document_type": "machine_press_story",
  "story": {
    "story_id": "mp-2026-07-20-026",
    "source_story_id": "tmp-story-focused-ultrasound-oligodendrogenesis",
    "edition_id": "mp-2026-07-20-morning-0011",
    "edition_url": "https://themachinepress.com/edition/2026-07-20",
    "position": 15,
    "story_type": "dispatch",
    "section": "research",
    "editorial_classification": "editorial",
    "headline": "Opening the Blood-Brain Barrier Grew Myelin-Making Cells",
    "slug": "opening-the-blood-brain-barrier-grew-myelin-making-cells",
    "dek": "Focused ultrasound with microbubbles triggered oligodendrocyte-lineage growth in adult mice.",
    "summary": "Focused ultrasound with microbubbles triggered oligodendrocyte-lineage growth in adult mice.",
    "body_text": "Researchers used focused ultrasound plus microbubbles to modulate the blood-brain barrier in adult mice. Oligodendrocyte precursor-cell proliferation in the hippocampus rose 6.8-fold after one day and 2.3-fold after four days; myelinating oligodendrocytes were 5.3-fold higher after a month. A second striatal experiment showed a similar trajectory, while ultrasound without microbubbles produced no effect. The work is preclinical and does not establish repair, functional benefit, or safety in human neurological disease.",
    "why_it_matters": "Focused ultrasound with microbubbles triggered oligodendrocyte-lineage growth in adult mice.",
    "limitations": [
      "Researchers used focused ultrasound plus microbubbles to modulate the blood-brain barrier in adult mice.",
      "The work is preclinical and does not establish repair, functional benefit, or safety in human neurological disease."
    ],
    "importance": 8,
    "canonical_url": "https://themachinepress.com/story/mp-2026-07-20-026/opening-the-blood-brain-barrier-grew-myelin-making-cells",
    "json_url": "https://themachinepress.com/story/mp-2026-07-20-026.json",
    "first_published_at": "2026-07-20T09:00:00.000-04:00",
    "modified_at": "2026-07-20T09:00:00.000-04:00",
    "content_status": "new",
    "is_carryover": false,
    "carryover_reason": null,
    "key_claims": [
      {
        "claim_id": "claim-mp-2026-07-20-026-001",
        "text": "Focused ultrasound with microbubbles triggered oligodendrocyte-lineage growth in adult mice.",
        "source_ids": [
          "source-2026-07-20-015"
        ],
        "qualification": "Researchers used focused ultrasound plus microbubbles to modulate the blood-brain barrier in adult mice."
      }
    ],
    "source_ids": [
      "source-2026-07-20-015"
    ],
    "tags": [
      "focused ultrasound",
      "blood-brain barrier",
      "oligodendrocytes"
    ],
    "image_url": null,
    "corrections": []
  },
  "sources": [
    {
      "source_id": "source-2026-07-20-015",
      "title": "Focused Ultrasound Foundation via Newswise: Oligodendrogenesis",
      "publisher": "Focused Ultrasound Foundation via Newswise",
      "url": "https://www.newswise.com/articles/the-modulation-of-the-blood-brain-barrier-by-focused-ultrasound-stimulates-oligodendrogenesis",
      "canonical_url": "https://www.newswise.com/articles/the-modulation-of-the-blood-brain-barrier-by-focused-ultrasound-stimulates-oligodendrogenesis",
      "source_type": "official_announcement",
      "is_primary_source": true,
      "published_at": null,
      "accessed_at": "2026-07-20T08:34:13.079-04:00",
      "supports_claim_ids": [
        "claim-mp-2026-07-20-026-001"
      ]
    }
  ],
  "corrections": [],
  "publisher": {
    "name": "The Machine Press",
    "url": "https://themachinepress.com",
    "description": "A daily newspaper for the age of artificial intelligence."
  },
  "cite_this_report": {
    "title": "Opening the Blood-Brain Barrier Grew Myelin-Making Cells",
    "publisher": "The Machine Press",
    "published_at": "2026-07-20T09:00:00.000-04:00",
    "canonical_url": "https://themachinepress.com/story/mp-2026-07-20-026/opening-the-blood-brain-barrier-grew-myelin-making-cells"
  }
}