JaLCDOI 10.18926/AMO/32274
FullText URL fulltext.pdf
Author Hirotsune, Nobuyuki| Kinugasa, Kazushi| Mandai, Shinya| Tokunaga, Koji| Handa, Akira| Kawada, Sanami| Ohmoto, Takashi|
Abstract <p>Cellulose acetate polymer (CAP) solution is a new liquid embolic material, and it has been used clinically for the thrombosis of cerebral aneurysms. The purpose of the study was to test a method of aneurysm treatment. In an experimental model, retrievable interlocking detachable coils (IDCs) were used to create an intraaneurysmal frame or prop and then CAP was injected into 20 experimentally induced canine cervical aneurysms. Intraaneurysmal thrombosis was induced 1 week after aneurysm creation. Complete thrombosis was attempted in 12 aneurysms, and partial thrombosis was attempted in 4. Four other aneurysms served as controls. Follow-up angiography was performed for up to 8 weeks, and with the exception of 4 aneurysms, which were kept for a 2-year long-term follow-up study, the aneurysms were then harvested for histological examination. Thrombosis was successfully achieved in all cases except for 2 enlarged aneurysms that were initially partially thrombosed. No thromboembolism to distal vessels was observed. No compaction or shift of the CAP-IDC complex occurred even after 2 years. Histologically, CAP and IDCs conformed to the massive thrombotic complex without any fragmentation. By creating a frame or prop with retrievable microcoils, we were able to inject the CAP implies a comparison safely and precisely than has been previously reported. Our findings suggest that this method will be useful for the treatment of cerebral aneurysms.</p>
Keywords experimentally induced aneurysm cellulose acetate polymer (CAP) interlocking detachable coil (IDC) endovascular technique
Amo Type Article
Published Date 2000-08
Publication Title Acta Medica Okayama
Volume volume54
Issue issue4
Publisher Okayama University Medical School
Start Page 153
End Page 164
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
File Version publisher
Refereed True
PubMed ID 10985175
Web of Sience KeyUT 000089132800003
JaLCDOI 10.18926/AMO/31858
FullText URL fulltext.pdf
Author Ogawa, Tomoyuki| Ono, Shigeki| Ichikawa, Tomotsugu| Arimitsu, Seiji| Onoda, Keisuke| Tokunaga, Koji| Sugiu, Kenji| Tomizawa, Kazuhito| Matsui, Hideki| Date, Isao|
Abstract <p>Many studies have shown that a motif of 11 consecutive arginines (11R) is one of the most effective protein transduction domains (PTD) for introducing proteins into the cell membrane. By conjugating this &#34;11R&#34;, all sorts of proteins can effectively and harmlessly be transferred into any kind of cell. We therefore examined the transduction efficiency of 11R in cerebral arteries and obtained results showing that 11R fused enhanced green fluorescent protein (11R-EGFP) immediately and effectively penetrated all layers of the rat basilar artery (BA), especially the tunica media. This method provides a revolutionary approach to cerebral arteries and ours is the first study to demonstrate the successful transductionof a PTD fused protein into the cerebral arteries. In this review, we present an outline of our studies and other key studies related to cerebral vasospasm and 11R, problems to be overcome, and predictions regarding future use of the 11R protein transduction method for cerebral vasospasm (CV).</p>
Keywords cerebral vasospasm 11 consecutive arginines (11R) enhanced green fluorescent protein (EGFP)
Amo Type Review
Published Date 2009-02
Publication Title Acta Medica Okayama
Volume volume63
Issue issue1
Publisher Okayama University Medical School
Start Page 1
End Page 7
ISSN 0386-300X
NCID AA00508441
Content Type Journal Article
language 英語
File Version publisher
Refereed True
PubMed ID 19247417
Web of Sience KeyUT 000263730300001
Title Alternative Novel protein transduction method for cerebral arteries using 11R
FullText URL 120_129.pdf
Author Ogawa, Tomoyuki| Ono, Shigeki| Ichikawa, Tomotsugu| Arimitsu, Seiji| Onoda, Keisuke| Tokunaga, Koji| Sugiu, Kenji| Tomizawa, Kazuhito| Matsui, Hideki| Date, Isao|
Keywords cerebral vasospasm 11R protein transduction method
Publication Title 岡山医学会雑誌
Published Date 2008-08-01
Volume volume120
Issue issue2
Start Page 129
End Page 133
ISSN 00301558
language 日本語
Copyright Holders 岡山医学会
File Version publisher
DOI 10.4044/joma.120.129
NAID 120002310545
Author 徳永 浩司|
Published Date 1998-12-31
Publication Title
Content Type Thesis or Dissertation