PMID- 26539257 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20151105 LR - 20200930 IS - 2005-3711 (Print) IS - 1598-7876 (Electronic) IS - 1225-8245 (Linking) VI - 58 IP - 3 DP - 2015 Sep TI - Role of a Burr Hole and Calvarial Bone Marrow-Derived Stem Cells in the Ischemic Rat Brain: A Possible Mechanism for the Efficacy of Multiple Burr Hole Surgery in Moyamoya Disease. PG - 167-74 LID - 10.3340/jkns.2015.58.3.167 [doi] AB - OBJECTIVE: This study investigates the role of a burr hole and calvarial bone marrow-derived stem cells (BMSCs) in a transient ischemic brain injury model in the rat and postulates a possible mechanism for the efficacy of multiple cranial burr hole (MCBH) surgery in moyamoya disease (MMD). METHODS: Twenty Sprague-Dawley rats (250 g, male) were divided into four groups : normal control group (n=5), burr hole group (n=5), ischemia group (n=5), and ischemia+burr hole group (n=5). Focal ischemia was induced by the transient middle cerebral artery occlusion (MCAO). At one week after the ischemic injury, a 2 mm-sized cranial burr hole with small cortical incision was made on the ipsilateral (left) parietal area. Bromodeoxyuridine (BrdU, 50 mg/kg) was injected intraperitoneally, 2 times a day for 6 days after the burr hole trephination. At one week after the burr hole trephination, brains were harvested. Immunohistochemical stainings for BrdU, CD34, VEGF, and Doublecortin and Nestin were done. RESULTS: In the ischemia+burr hole group, BrdU (+), CD34 (+), and Doublecortin (+) cells were found in the cortical incision site below the burr hole. A number of cells with Nestin (+) or VEGF (+) were found in the cerebral parenchyma around the cortical incision site. In the other groups, BrdU (+), CD34 (+), Doublecortin (+), and Nestin (+) cells were not detected in the corresponding area. These findings suggest that BrdU (+) and CD34 (+) cells are bone marrow-derived stem cells, which may be derived from the calvarial bone marrow through the burr hole. The existence of CD34 (+) and VEGF (+) cells indicates increased angiogenesis, while the existence of Doublecortin (+), Nestin (+) cells indicates increased neurogenesis. CONCLUSION: Based on these findings, the BMSCs through burr holes seem to play an important role for the therapeutic effect of the MCBH surgery in MMD. FAU - Nam, Taek-Kyun AU - Nam TK AD - Department of Neurosurgery, Chung-Ang University College of Medicine, Seoul, Korea. FAU - Park, Seung-Won AU - Park SW AD - Department of Neurosurgery, Chung-Ang University College of Medicine, Seoul, Korea. FAU - Park, Yong-Sook AU - Park YS AD - Department of Neurosurgery, Chung-Ang University College of Medicine, Seoul, Korea. FAU - Kwon, Jeong-Taik AU - Kwon JT AD - Department of Neurosurgery, Chung-Ang University College of Medicine, Seoul, Korea. FAU - Min, Byung-Kook AU - Min BK AD - Department of Neurosurgery, Chung-Ang University College of Medicine, Seoul, Korea. FAU - Hwang, Sung-Nam AU - Hwang SN AD - Department of Neurosurgery, Chung-Ang University College of Medicine, Seoul, Korea. LA - eng PT - Journal Article DEP - 20150930 PL - Korea (South) TA - J Korean Neurosurg Soc JT - Journal of Korean Neurosurgical Society JID - 101467054 PMC - PMC4630345 OTO - NOTNLM OT - Angiogenesis OT - Bone marrow OT - Burr hole OT - Moyamoya disease OT - Neurogenesis OT - Stem cell EDAT- 2015/11/06 06:00 MHDA- 2015/11/06 06:01 PMCR- 2015/09/01 CRDT- 2015/11/06 06:00 PHST- 2015/03/08 00:00 [received] PHST- 2015/03/18 00:00 [revised] PHST- 2015/06/11 00:00 [accepted] PHST- 2015/11/06 06:00 [entrez] PHST- 2015/11/06 06:00 [pubmed] PHST- 2015/11/06 06:01 [medline] PHST- 2015/09/01 00:00 [pmc-release] AID - 10.3340/jkns.2015.58.3.167 [doi] PST - ppublish SO - J Korean Neurosurg Soc. 2015 Sep;58(3):167-74. doi: 10.3340/jkns.2015.58.3.167. Epub 2015 Sep 30.