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1.
MASAO TSUJIHATA KAZUHIRO YOSHIMURA KOZO TSUJIKAWA NORIHIDE TEI AKIHIKO OKUYAMA 《International journal of urology》2006,13(6):743-746
BACKGROUND: Fibronectin (FN; 230 kDa) is a multifunctional alpha2-glycoprotein distributed throughout the extracellular matrix and body fluids. We recently reported that FN has a protective effect against injury of renal tubular cells by exposure to oxalate and calcium oxalate (CaOX) crystals and inhibits the adhesion of CaOX crystals to renal tubular cells. In the study presented here, we investigated whether FN has inhibitory effect on crystal endocytosis by renal tubular cells. METHODS: The inhibitory effect of FN on endocytosis of CaOX crystals by MDCK cells was examined by using a radioactivity uptake assay. Also, crystal endocytosis by cells was morphologically assessed by means of transmission electron microscopy (TEM). RESULTS: FN had inhibitory effects on CaOX crystal endocytosis by MDCK cells. The morphological TEM study showed that few crystals were taken into cells when FN was added compared to the number of crystals when FN was not added. CONCLUSION: We found that FN had the inhibitory effects on the interaction between crystals and renal tubular cells, including the adhesion or endocytosis of crystals by cells. 相似文献
2.
SUGA JUNJI; SAIJO NAGAHIRO; SHINKAI TETSU; EGUCHI KENJI; SASAKI YASUTSUNA; SAKURAI MASANORI; SANO TETSURO; TAMURA TOMOHIDE; HOSHI AKIO 《Japanese journal of clinical oncology》1986,16(2):147-151
A phase II study of mitoxantrone was performed in 24 patientswith non-small cell lung cancer (NSCLC). Mitoxantrone was administeredby intravenous drip infusion of 12 mg/m2 every three weeks.There were no responders among the 21 evaluable patients includingfive patients without prior therapy. The major hematologicaltoxic effect was leukocytopenia. Thrombocytopenia and decreasein hemoglobin were slight. A change in the electrocardiogramwas observed in one patient and one patient experienced cardiogenicshock. Mitoxantrone is not acceptable for the treatment of NSCLC becauseof its low antitumor activity, and careful observation is neededfor administration of this agent to patients with pre-existingrisk factors, such as prior anthracycline exposure, mediastinalradiation or underlying cardiovascular disease. 相似文献
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4.
HISAKI MAKIMOTO M.D. Ph.D. IKUTARO NAKAJIMA M.D. KOJI MIYAMOTO M.D. YUKO YAMADA M.D. HIDEO OKAMURA M.D. TAKASHI NODA M.D. Ph.D. TAKESHI AIBA M.D. Ph.D. SHIRO KAMAKURA M.D. Ph.D. KENGO KUSANO M.D. Ph.D. WATARU SHIMIZU M.D. Ph.D. KAZUHIRO SATOMI M.D. Ph.D. 《Pacing and clinical electrophysiology : PACE》2015,38(5):630-640
5.
KEIICHI ISOYAMA MITSURU IMAI AKIRA ISHIKAWA KAZUHIRO FUJITA YUMIKO SUTO TAMIKO SHINOHARA 《Pediatrics international》1995,37(1):101-104
A female child with dicentric translocation between chromosome 9 and chromosome 18 presented non-specific minor anomalies with laryngomalacia. Chromosomal analyses were performed by the G-banding method and a fluorescence in situ hybridization (FISH) technique with a specific probe for the centromeric region of chromosome 18 and the painting probe for the chromosomes 9 and 18. Her full karyotype was confirmed as 45, XX, tdic (9;18)(p24;p11). This is the first case of dicentric translocation between chromosomes 9 and 18. The FISH technique is an important tool in chromosome diagnostics. 相似文献
6.
SUGURU MATSUOKA EMMANUEL EH ANTONIOU KAZUHIRO MORI YASUNOBU HAYABUCHI YASUHIRO KURODA 《Pediatrics international》1995,37(4):514-517
The first case of a patient with interrupted inferior vena cava, four post-renal veins and an azygoshemiazygos continuation is presented. The complicated anomalies were omphalocele and atrial septal defect. Cine-magnetic resonance imaging and cardiac catheterization showed an anomalous retroaortic left innominate vein, azygos-hemiazygos continuation in the prerenal portion, arch formed renal vein in the renal portion and four embryonic vessels in the post-renal portion. Combination of these anomalies in the major venous system suggested that the inferior vena cava had failed to form and that the bilateral embryonic venous system, postcardinal and supracardinal veins persisted to be the systemic venous channels. 相似文献
7.
TAKESHI AIBA M.D. KAZUHIRO SUYAMA M.D. KIYOTAKA MATSUO M.D. ATSUSHI TAGUCHI M.D. WATARU SHIMIZU M.D. TAKASHI KURITA M.D. NAOHIKO AIHARA M.D. SHIRO KAMAKURA M.D. 《Journal of cardiovascular electrophysiology》1998,9(9):1004-1007
Mid-Diastolic Potential in Idiopathic VT. We report a case of verapamil-sensitive idiopathic ventricular tachycardia in which a mid-diastolic potential (MDP) 45 msec preceding the Purkinje potential ( P potential) was recorded. Pacing during the tachycardia caused concealed entrainment, and the stimulus–QRS interval was equal to the P potential–QRS interval. The interval between the last pacing stimulus and the next P potential (postpacing interval) was longer than the ventricular tachycardia cycle length, but the MDP was orthodromically activated. These findings suggest that the MDP was on the reentrant circuit and the P potential was not on the reentrant circuit, but a bystander. 相似文献
8.
MANABU OGISO MAKOTO TAKEHANA SHIZUKO KOBAYASHI MOTONORI HOSHI 《Experimental eye research》1998,66(6):765-773
Monkey and human lenses contain essentially the same glycosphingolipids, and Lewisxand sialylated Lewisxepitopes are expressed on the terminal structure of neolactotetraosylceramide. However, monolayer cultures of lens epithelial cells from rhesus monkey expressed gangliosides GM3, GD3 and a small amount of GM1, but not sialylated Lewisxepitopes. Eight-week-old cultures on various extracellular matrices resulted in morphological changes in lens epithelial cells. Monolayer of cells cultured on vitronectin or polylysine assembled into aggregates after 4 weeks of culture. Cells cultured on vitronectin expressed sialyl-Lewisxgangliosides and did not exhibit GD3. On collagens, fibronectin and laminin elongated cells were observed in cells cultured for 8 weeks. Thus, the interaction between cells and extracellular matrices influenced morphology and glycosphingolipid composition in lens epithelial cells. 相似文献
9.
Kunihisa NISHIKAWA Satoshi OGAWA Masahiro SATO Hajime HOSHI Shigeki OHASHI Hideki YOSHIOKA Iruru MAETANI Yoshinori IGARASHI Sumio FUJINUMA Yoshihiro SAKAI 《Digestive endoscopy》1991,3(3):342-349
Abstract: From June, 1987 to November, 1989, 11 patients with malignant bile duct stenosis, which was later confirmed by surgery or autopsy, were examined by percutaneous transhepatic cholangioscopy (PTCS) and by an endoscopic biopsy. The endoscopic findings obtained with the usual observation methods and methylene blue staining and the histological findings of the biopsy specimens were compared. A fine vascular proliferation was seen in all of the patients and a granular appearance was noted in patients with carcinoma of the major papilla. The papillary appearance was noted in one case each of pancreatic carcinoma, bile duct carcinoma and carcinoma of the major papilla. Marginal protrusion was not noted in patients with pancreatic carcinoma. A distorted narrow segment was seen only in cases of pancreatic carcinoma. The presence of a granular appearance indicated that the carcinoma was exposed on the surface. A high degree of fine vascular proliferation and a papillary appearance tended to indicate a carcinoma which invaded mainly into the fibromuscular layer without invasion of the mucosa. The methylene blue staining method was simple and effective for better visualization of the surface structure of the abnormal area, normal mucosa and the border zone. 相似文献
10.
KAZUHIRO SUYAMA TAKASHI KURITA WATARU SHIMIZU KIYOTAKA MATSUO ATSUSHI TAGUCHI NAOHIKO AIHARA SHIRO KAMAKURA KATSURO SHIMOMURA 《Pacing and clinical electrophysiology : PACE》1998,21(9):1693-1699
The retrograde atrial potential at a successful ablation site is usually obscured by the wide and large ventricular potential during atrioventricular reentrant tachycardia or ventricular pacing, which makes it difficult to determine the appropriate ablation site for concealed accessory pathway. A pacing maneuver named the “simultaneous pacing method” is proposed herein to differentiate the retrograde atrial potential from the ventricular potential for a successful ablation of the concealed accessory pathway. Catheter ablation was performed in 12 patients with a single left free-wall concealed accessory pathway. The atrial insertion site was determined by the simultaneous pacing method in six patients (group I) and by ventricular pacing in six patients (group II), In the simultaneous pacing method, electrograms recorded during ventricular pacing in the earliest retrograde atrial activation site are a fusion of the ventricular potential and the following retrograde atrial potential. When atrial and ventricular pacings are performed simultaneously (simultaneous pacing), the end portion of the electrograms recorded at the same site is solely the ventricular component, because atrial is activated earlier. The atrial potential can be confirmed during ventricular pacing in comparison with the electrograms during the “simultaneous pacing.” Radiofrequency catheter ablation was successful in eliminating conduction through the accessory pathway in all 12 patients. The radiofrequency applications in group I were significantly fewer than those in group II (1.7 ± 1.0 in group I, 5.3 ± 3.2 in group II, P < 0.05). The total procedure time in group I was significantly shorter than in group II (57.8± 15.7 vs 106.7 ± 41.6 mins in group II. respectively, P < 0.05). The fluoroscopy time in group I was significantly shorter than in group II (54.0 ± 7.9 vs 81.3± 26.3 mins, respectively, P < O.05). We were able to determine the atrial insertion site of accessory pathways by the simultaneous pacing method. The simultaneous pacing method was useful in eliminating concealed left free-wall accessory pathways. 相似文献