著者

宮薗 久信 橋本 恵司 飯野 靖子 伊藤 啓介 中島 昭彦 Hisanobu MIYAZONO Keiji HASHIMOTO Yasuko IINO Keisuke ITOU Akihiko NAKASIMA 九州大学歯学部歯科矯正学講座 九州大学歯学部歯科矯正学講座 九州大学歯学部歯科矯正学講座 九州大学歯学部歯科矯正学講座 九州大学歯学部歯科矯正学講座 Department of orthodntics Faculty of dentistry Kyushu university Department of orthodntics Faculty of dentistry Kyushu university Department of orthodntics Faculty of dentistry Kyushu university Department of orthodntics Faculty of dentistry Kyushu university Department of orthodntics Faculty of dentistry Kyushu university

雑誌

Orthodontic waves : journal of the Japanese Orthodontic Society = Orthodontic waves : journal of the Japanese Orthodontic Society (ISSN:13440241)

巻号頁・発行日

vol.58, no.5, pp.325-334, 1999

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本研究の目的は日常的に口呼吸をしている患者の顎顔面の形態的特徴を分析し, かつ, それらの特徴が環境要因によるものか遺伝的要因によるものかについて検討することである.小学児童58人(男子23人, 女子35人, 6∿12歳)と両親について正面側面の頭部X線規格写真(以下, セファロ)を撮影した.口呼吸の判定は, 他覚症状や既往歴についてのアンケート調査, 問診および視診を併せて行い, 口呼吸群(以下, M群)と鼻呼吸群(以下, N群)に分けた.統計分析するために標準値からの離れ度(SDU)を用いた.SDUは個々の患者が属する性別・年齢群に該当する標準値との差を標準偏差で割って求めた.形態分析の結果, 側面セファロで有意な特徴が示された.すなわち, M群は下顎が後方に回転していて, 上顎前歯が舌側傾斜していた.しかし, 正面セファロ分析で2群間に有意差はなかった.側面セファロにおける親子の相関に関して, M群は親子相関が低い傾向が推察された.しかし, 正面セファロの親子相関で特徴はなかった.以上のことから, M群の顎顔面形態は形態遺伝学的影響に加えて口呼吸という機能的影響と関連していることが示唆された.その結果, 上顎歯列の狭窄や下顎の後方回転などを生じるものと推察された.したがって, 矯正医はこれらの原因を除去することを治療方針に考慮すべきであり, 加えて, 後戻りの防止のためにも口呼吸の改善を図るべきだと考えられた.

著者

Takashi MAOKA Yasuhiro FUJIWARA Keiji HASHIMOTO Naoshige AKIMOTO

出版者

公益社団法人 日本油化学会

雑誌

Journal of Oleo Science (ISSN:13458957)

巻号頁・発行日

vol.51, no.1, pp.1-9, 2002 (Released:2002-06-28)

参考文献数

7

被引用文献数

19 29 26

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The combination method of high performance liquid chromatography / UV-Visible (Vis) absorption spectrometry by photodiode-array detector and atmospheric pressure chemical ionization mass spectrometry (LC/PAD/APCI-MS) were applied for the rapid identification of carotenoids obtained from several natural sources. APCI-MS spectra provided not only information of the molecule weight but also the presence of functional groups such as hydroxy, acetyl and glycosyl groups in carotenoids. On the other hand, UV-Vis spectra gave the information of chromophores which consist of the conjugated double bonds and end groups in carotenoids. This combination method allows the carotenoids to be characterized by retention time in HPLC, APCI-MS and UV-Vis spectral data so that it offers rapid and accurate method for the identification of carotenoids extracted from various natual sources.

著者

Go URUMA Keiji HASHIMOTO Masahiro ABO

出版者

日本磁気共鳴医学会

雑誌

Magnetic Resonance in Medical Sciences (ISSN:13473182)

巻号頁・発行日

pp.2014-0104, (Released:2015-02-12)

被引用文献数

5

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Purpose: We developed a new and convenient method that employs voxel-based morphometry (VBM) to evaluate regional reduction in the volume of white matter after diffuse axonal injury (DAI).Methods: We studied 29 patients with moderate cognitive disability after DAI. Each subject underwent 3-dimensional volumetric magnetic resonance (MR) imaging. Images were preprocessed automatically using stand-alone software running on a Windows PC for VBM of volumetric MR imaging utilizing a statistical parametric mapping (SPM) version 8 software engine and an algorithm for diffeomorphic anatomic registration through exponentiated lie algebra (DARTEL). We then computed a Z-score for all coordinates on the white matter, which represented the relative reduction in white matter volume. Finally, we used voxel-based stereotactic extraction estimation (vbSEE) to compute the extent of regional reduction in the volume of white matter (rWMVR) for each region of interest (ROI), defined as the rate of coordinates with Z-scores exceeding 2.0 in the ROI. For each ROI, we used Pearson’s correlation analysis to examine the correlation between the extent of regional volume reduction and patient scores on the Wechsler Adult Intelligence Scale III (WAIS-III).Results: We detected marked rWMVR in several ROIs, including the corpus callosum, and rWMVR correlated significantly with performance IQ and processing speed index in the splenium of the corpus callosum.Conclusions: The results indicate the utility of our applications for the daily clinical evaluation of DAI. That they can be used on a PC and allow acquisition of volumetric data from standard MR images are their advantages.