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- 저자 : AKI YOSHIOKA (검색결과 2 건)
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TOSHIHIRO ONA,AKI YOSHIOKA,YASUO KOJIMA,TERUYUKI SEINO,MIHO MIZUMOTO,HIDEO NOZAKI,YASUYUKI ISHIDA,HAJIME OHTANI 한국펄프·종이공학회 2006 한국펄프종이학회 기타 간행물 Vol.- No.-
Pyrolysis-gas chromatography (Py-GC) in the presence of organic alkali of tetrabutylammonium hydroxide (TBAH) was applied to characterize the polyphenol fragments with a carbonyl group causing different magnitude of photoyellowing in chemithermomechanical pulp (CTMP) papers. Two different origin of CTMP papers prepared from different individuals of Eucalyptus globulus trees showing high and low yellowing after photo-irradiation was compared before photo-irradiation. As a result, 7 peaks assigned to a series of phenol compounds with a carbonyl group, derived mainly from lignin, gave significant amount of phenol compounds with a carbonyl group for the paper sample of latent high yellowing, i.e., butoxy- and syringaldehyde, butoxy- and syringylacetone, butoxy-acetoguaiacone, butoxy-acetosyringone, butoxy-acetoethylsyringone, 3-methoxy-4-butoxy butyl ester, and 3,5-dimethoxy-4-butoxy butyl ester, using Py-GC/mass spectrometry (MS). The Py-GC method combined with TBAH successfully characterized polyphenol fragments with a carbonyl group causing differ high photo-yellowing in CTMP papers using a microgram order of samples.
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Groin lymph node detection and sentinel lymph node biopsy in vulvar cancer
Chieko Sakae,Ken Yamaguchi,Noriomi Matsumura,Hidekatsu Nakai,Yumiko Yoshioka,Eiji Kondoh,Junzo Hamanishi,Kaoru Abiko,Masafumi Koshiyama,Tsukasa Baba,Aki Kido,Masaki Mandai,Ikuo Konishi 대한부인종양학회 2016 Journal of Gynecologic Oncology Vol.27 No.6
Objective: To identify suitable diagnostic tools and evaluate the efficacy of sentinel lymphnode (SLN) biopsy for inguinal lymph node metastasis in vulvar cancer. Methods: Data from 41 patients with vulvar cancer were evaluated retrospectively, includingmagnetic resonance imaging (MRI) measurements, SLN biopsy status, groin lymph nodemetastasis, and prognosis. Results: SLN biopsy was conducted in 12 patients who had stage I to III disease. Groinlymphadenectomy was omitted in five of the nine patients with negative SLNs. All SLNnegativepatients who did not undergo groin lymphadenectomy showed no evidence ofdisease after treatment. On MRI, the long and short diameters of the inguinal node weresignificantly longer in metastasis-positive cases, compared with negative cases, in 25 patientswhose nodes were evaluated pathologically (long diameter, 12.8 mm vs. 8.8 mm, p=0.025;short diameter, 9.2 mm vs. 6.7 mm, p=0.041). The threshold of >10.0 mm for the longaxis gave a sensitivity, specificity, positive predictive value, and negative predictive value of87.5%, 70.6%, 58.3%, and 92.3%, respectively, using a binary classification test. Decisiontree analysis revealed a sensitivity, specificity, and accuracy of 87.5%, 70.6%, and 76.0%,respectively, with the threshold of >10.0 mm for the long axis on MRI. The criteria of >10.0mm for the long axis on MRI predicted an advanced stage and poorer prognosis using avalidation set of 15 cases (p=0.028). Conclusion: Minimally invasive surgery after preoperative evaluation on MRI and SLN biopsyis a feasible strategy for patients with vulvar cancer.
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