Kazuhiro Matsushita

Hokkaido University Hospital

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Granulocytic sarcoma of the gingiva: two case reports.

Quintessence International (2007)

Kazuhiro Matsushita T. Abe Yukari Takeda H Takashima Akio Takada

The intraoral occurrence of granulocytic sarcoma is extremely rare. This article describes 2 cases of granulocytic sarcoma of the gingiva in different clinical situations: one as a precursor to acute myeloid leukemia in a 50-year-old man and the other as a sign of blast crisis in a 59-year-old man with chronic myelomonocytic leukemia. Clinicians and oral surgeons should consider the possibility of tumorous lesion and systemic disease when an intractable ulcer is encountered in an oral cavity. Early diagnosis may improve prognosis and increase expectancy of survival.

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Citations (8)

Author response for "Comparison of Maximum Mouth Opening Following Mandibular Bilateral Sagittal Splitting Ramus osteotomies in Class III Females Using Two Different Osteosynthesis Methods"

Kazuhiro Ooi Nobuo Inoue Kazuhiro Matsushita Hiroo Yamaguchi Tadashi Mikoya

Osteosynthesis

Mandibular ramus

10.1111/joor.13059/v2/response1

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Citations (0)

Shape of the Expiratory Flow-volume Curve of Chronic Obstructive Pulmonary Disease and Interstitial Pneumonia Patients at Rest and during Exercise

Rigakuryoho Kagaku (2012)

Masafumi Nozoe Kyoshi Mase Shigefumi Murakami Okada Makoto Tomoyuki Ogino

〔目的〕慢性閉塞性肺疾患（COPD）患者と間質性肺炎（IP）患者の安静時，運動時呼気Flow-Volume （FV）曲線の形状を検討する．〔対象〕COPD患者9例，IP患者8例．〔方法〕安静時及び自転車エルゴメーター駆動中のFV曲線を作成し，呼気流量制限，肺気量位変化，呼気FV曲線の形状をCOPD患者とIP患者でその変化を比較した．〔結果〕COPD患者においては呼気流量制限，動的肺過膨張がみられやすく，呼気FV曲線の形状は運動に伴って凹型を示しやすかった．IP患者においては呼気流量制限が生じにくく，呼気FV曲線の形状は安静時，最大運動時ともに凸型であった．〔結語〕COPD患者はIP患者よりも運動時に呼気FV曲線の形状は凹型を示しやすい．

Rest (music)

10.1589/rika.27.379

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Citations (0)

EVALUATION OF CAVERNOUS ARTERY BY COLOR DOPPLER ULTRASONOGRAPHY

The Japanese Journal of Urology (1995)

Yasuo Kawanishi Kazunori Kimura Takushi Naroda Masato Yamanaka Kazuhiro Matsushita

Penile Doppler ultrasonography is widely accepted as an essential examination in the diagnosis of impotence. However, measurement blood flow velocity using Doppler ultrasonography may be subject to some errors. We performed color Doppler ultrasonography in 63 patients with normal penile vascular function as diagnosed using positive responses to intracavernous pharmacological stimulation. We compared the Doppler measurement results of the 126 cavernous arteries and the ultrasonic beam angles. We used a Hitachi EUB 515, a sonographic probe of 7.5 MHz, a sampling width of 0.8 mm, a sampling depth of 1 mm, and a wall motion filter was not used. Ultrasonic beam angles were 5 to 77 degrees. The mean peak systolic velocity and end diastolic velocity values were 40. 0 cm/s and 3.9 cm/sec, respectively. The peak systolic velocity and end diastolic velocity values remained stable regardless of the ultrasonic beam angles (Kruskal-Wallis test, p = 0.56, p = 0.70). However, the variance of values became greater when the ultrasonic beam angles was larger than 55 degrees in the case of peak systolic velocity (F test, p < 0.05) and 50 degrees in the case of end diastolic velocity (F test, p < 0.05), indicating a reduction in reliability. Resistance index variance was significantly higher when ultrasonic beam angle exceeds 50 degrees (F test, p < 0.05). We believe that we should accept only those cavernous artery peak systolic velocity measurements as reliable when the ultrasound beam angle is less than 55 degrees.(ABSTRACT TRUNCATED AT 250 WORDS)

10.5980/jpnjurol1989.86.1142

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Citations (1)

High myo-inositol concentration in the hemolymph of planthoppers

Applied Entomology and Zoology (2003)

Norichika Moriwaki Kazuhiro Matsushita Masami Nishina Kazuhiro Matsuda Yoshiaki Kono

Hemolymph

10.1303/aez.2003.359

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Citations (19)

Assessment of the toxicity of linear alkylbenzene sulfonate and quaternary alkylammonium chloride by measuring 13C-glycerol in Dunaliella sp.

Chemosphere (1997)

Akiko Utsunomiya Tomohiko Watanuki Kazuhiro Matsushita Masami Nishina Isao Tomita

Bicarbonate

Dunaliella

Sodium bicarbonate

Ammonium chloride

10.1016/s0045-6535(97)00316-0

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Citations (31)

1H- and 17O-NMR studies of distilled spirit: New methods for assessing the aging process of Awamori.

Nippon Nōgeikagaku Kaishi (1986)

Takeshi Tamaki Kazuhiro Matsushita Katsuya Hioka Y Takamiya

泡盛をカメあるいは密閉容器のいずれで熟成させても,その味および香りは向上し,また水の17O-NMRシグナルの線幅は減少することが認められた.線幅が減少することは,分子運動の自由度が増加することを意味し,このことから熟成過程は水の水素結合が切断され,クラスターが小さくなっていく過程と考えられる.その熟成過程で変化するのは,水分子のOH墓であって,エタノールのOH基は変化しないことが確認された. また,観測周波数の高い270.16MHz 1H-NMRで観測した結果,新酒では水のOH基とエタノールのOH基は分離して観測されるが,古酒ではOH基同士の交換速度が速くなり,1本になってしまう.この結果より,プロトンが水素結合から解放されて運動が自由になっていることが示唆される.このことは,古酒になると分子運動の自由度が増加し,水素の交換速度が速くなるという17O-NMRによる結果を裏づけるものである.Laser Ramanスペクトルを測定した結果でも,新酒と古酒のOHの伸縮振動にわずかな差が認められ,新酒と古酒では水素結合の状態が異なる部分があることが示唆された.

Proton NMR

10.1271/nogeikagaku1924.60.191

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Citations (7)

Determination of the sign of a one-bond¹⁵N–¹⁵N spin–spin coupling constant for a trans-diazene by selective¹⁵N decoupling experiments in¹³C nuclear magnetic resonance spectroscopy

Journal of the Chemical Society. Perkin transactions II (1986)

Yoshihiro Kuroda Yasuhiro Fujiwara Akio Kuwae Kazuhiro Matsushita

The sign of the one-bond 15N–15N spin–spin coupling constant, 1J(N–N), of a trans-diazene (4-acetyl-aminoazobenzene) has been determined to test the theoretical prediction that 1J(N–N) would be positive in sign when nitrogens have s-hybridized lone pairs and take a trans conformation. The sign was first determined relative to those of 13C–15N spin-spin coupling constants, nJ(C–N), by selective 15N decoupling experiments and then finally referenced to that of 1J(C–H) in the benzene ring, which undoubtedly bears a positive sign, by selective 15N and 1H decoupling experiments. It was found that the sign of 1J(N–N) of the trans-diazene is negative in contrast to the theoretical prediction. This discrepancy is attributed to the large negative contribution from the orbital–dipole term which was not correctly evaluated in previous calculations for the 1J(N–N) coupling of the NN bond.

Coupling constant

Decoupling (probability)

Lone pair

10.1039/p29860000675

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Citations (5)

Studies on uptake of cesium by mycelium of the mushroom (Pleurotus ostreatus) by133Cs-NMR

Journal of Radioanalytical and Nuclear Chemistry (1998)

Chikako Kuwahara Tomohiko Watanuki Kazuhiro Matsushita Masami Nishina Hideo Sugiyama

Pleurotus ostreatus

Pleurotus

Edible mushroom

Agaricales

10.1007/bf02385960

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Citations (10)

Divalent Cation Dependent Conformations of Brain Calmodulin Detected by 1H NMR

The Japanese Journal of Pharmacology (1986)

Den’etsu Sutoo Kayo Akiyama Naoyuki Fujii Kazuhiro Matsushita

The effects of the Ca2+, Mg2+, Zn2+, Cd2+, Hg2+ and Mn2+ on the conformation of calmodulin (CaM) have been tested by using 400 MHz 1H NMR. In the aromatic region of the spectrum of CaM with a one molar ratio of cation per CaM, Zn2+, Cd2+, Hg2+ and Mn2+ induced spectral changes which were very similar to those seen for Ca2+. However, the Mg2+-induced change was different. These results are consistent with our pharmacological findings on divalent cations.

Divalent

Molar ratio

Proton NMR

10.1254/jjp.40.169

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Citations (15)