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排序方式: 共有111条查询结果,搜索用时 265 毫秒
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
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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
4.
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
5.
AKIHIKO SAITOH TATSUO OHYA SHIGEHIKO YOSHIDA RYOHTA HOSOYA KOZO NISHIMURA 《Pediatrics international》1995,37(1):113-115
We encountered an 8 year old boy who suffered from Stevens-Johnson syndrome with Mycoplasma pneumoniae infection. He had multiple erythema with vesicles in oral mucosa, and on his palms and feet, trunk and genital regions. We treated him with prednisolone (1 mg/kg per day) and antibiotics. His skin lesions improved dramatically, and a persistent fever and toxic general condition also showed dramatic improvement. Although the use of corticosteroids for Stevens-Johnson syndrome has recently been controversial, we thought that administration of corticosteroids was an effective treatment for some selective cases of Stevens-Johnson syndrome. The patient reported in this study had many beneficial effects in response to corticosteroid treatment. 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.
ABSTRACT The oral surface of the mouse palate has eight or nine pairs of transverse ridges, or rugae. Abnormalities in the pattern of palatal rugae have been reported in mutant mice and mice exposed to teratogens in utero. The purpose of this study was to describe control data of ruga variations for proper definition of "anomalous" ruga patterns. Jc1:ICR mice on gestation day 18 were killed, and the fetuses were fixed in Bouin's solution. Fetal palates were examined under a dissecting microscope. In total, 251 fetuses from 19 dams were observed. Among these fetuses 88% had one or more variations in the palatal rugae. Common variations were supernumerary anterior to the fourth ruga, division, and lateral bifurcation, and these were regarded as variations in the "normal" range. Variations rare in fetuses from untreated dams were shortness, fusion, cross, and supernumerary posterior to the fifth ruga, and these should be defined as "anomalous" ruga patterns in teratology experiments. Key words: mouse, palate, rugae, developmental toxicity test 相似文献
8.
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
9.
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
10.
KAZUHIRO SUYAMA TOHRU OHE TAKASHI KURITA TAKAHISA MARUYAMA HIROSHI TAKAKI NAOHIKO AIHARA SHIRO KAMAKURA WATARU SHIMIZU MOKUO MATSUHISA KATSURO SHIMOMURA 《Pacing and clinical electrophysiology : PACE》1992,15(8):1114-1121
We examined entrainment by ventricular pacing in six patients during orthodromic atrioventricular reentrant tachycardia (AVRT) utilizing a left-sided lateral accessory pathway. Constant fusion and progressive fusion were demonstrated in all patients by left ventricular pacing during tachycardia, but in none of the patients by right ventricular pacing. When left ventricular pacing was performed during AVRT, the antidromic wave front from the pacing impulse (n) collided with the orthodromic wave front of the previous pacing beat (n - 1) within the ventricle, therefore, constant fusion and progressive fusion were demonstrated in the surface electrocardiographic QRS complexes. On the other hand, when right ventricular pacing was performed during orthodromic AVRT, the antidromic wave front from the pacing impulse (n) collided with the orthodromic wave front of the previous paced beat (n - 1) within the normal atrioventricular pathway, and constant fusion and progressive fusion were therefore not demonstrated. These phenomena were explained by the relationship of the ventricular pacing site and the reentrant circuit. This study demonstrates the importance of the pacing site in manifest entrainment of orthodromic AVRT during ventricular pacing. 相似文献