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  • 1
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0533
    Keywords: Key words Aciculin ; Dystrophin ; Binding site ; Normal and dystrophic muscles ; Ultrastructural ¶localization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Aciculin is a novel adherens junction antigen extracted from human uterine smooth muscle that is reported to associate biochemically with dystrophin. We attempted to determine (i) the immunostainability of anti-aciculin antibody for the 6 histochemically normal human muscles and seven muscles from boys with Duchenne muscular dystrophy(DMD) and 11 disease control muscles, (ii) the ultrastructural localization of aciculin in normal skeletal myofibers, (iii) aciculin’s spacial relationship with dystrophin and β-spectrin, and (iv) if the aciculin is ultrastructurally colocalized with dystrophin, the distance from the aciculin epitope to the epitope of the dystrophin N- or C-terminal domain. For this, rabbit anti-aciculin antibody was generated against the synthetic peptide of aciculin fragment D [4]. Immunohistochemical staining showed that the immunostainability of DMD muscles for anti-aciculin antibody was markedly decreased as compared with normal and disease control muscles. Single and double immunogold labeling electron microscopy of 6 histochemically normal human quadriceps femoris muscles revealed that aciculin was present along the inner surface of muscle plasma membrane and that aciculin formed doublets more frequently with dystrophin (23.5 ± 1.8%; group mean ± SE) than with β-spectrin (12.8 ± 1.1%; P 〈 0.01 two tailed t test). Rabbit anti-aciculin antibody frequently formed doublets with monoclonal antibodies against the N- or C-terminal domain of dystrophin at the muscle cell surface. These results suggest that aciculin is associated with dystrophin and may interact with both the N- and C-terminal domains of dystrophin.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Abdominal imaging 23 (1998), S. 560-562 
    ISSN: 1432-0509
    Keywords: Key words: Esophagojejunal varices—Percutaneous transhepatic obliteration—Total gastrectomy.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. A 59-year-old man experienced hematemesis 5 years after a total gastrectomy and Roux-en-Y esophagojejunostomy for carcinoma of the cardia. Endoscopic examination revealed the esophagojejunal blue small varices with cherry-red spots. Percutaneous transhepatic portography showed that the varices were supplied by the vein of the ascending jejunal limb. The 3-French microcatheter was inserted into this vein through the 5-French catheter, and 0.5 mL of absolute ethanol and 2 mL of ethanolamine oleate with iopamidol were injected, which visualized the esophagojejunal varices and obliterated varices at the same time. There were no complications during the operation, and the subsequent clinical course showed no further bleeding. We conclude that percutaneous transhepatic obliteration with a 3-French microcatheter is one of the most effective means of treating esophagojejunal small varices arising after a total gastrectomy.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Abdominal imaging 25 (2000), S. 567-571 
    ISSN: 1432-0509
    Keywords: Key words: Transjugular retrograde obliteration—Chronic portosystemic encephalopathy—Gastrorenal shunt.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Chronic portosystemic encephalopathy (CPSE) is uncommon, and its management has yet to be determined. We have been able to control five cases of CPSE using transjugular retrograde obliteration (TJO), and we report our clinical results with this technique. All of the five patients were suffering from cirrhosis and had gastric varices and large gastrorenal shunts. According to Sherlock's classification, the grade of encephalopathy was II in two patients, III in two, and IV in one. According to Child's classification, one had class B and four had class C cirrhosis. TJO was performed using a 6-F angiographic catheter with an occlusive balloon 20 mm in diameter. Absolute ethanol and 5% ethanolamine oleate with iopamidol were used to obliterate the gastrorenal shunt. The gastrorenal shunt was successfully obliterated, and the encephalopathy improved to grade 0 after TJO in all cases. The portal flow volume increased significantly from 542 ± 189 to 992 ± 139 mL/min (p 〈 0.01). The plasma ammonia levels before and after TJO were 189 ± 40 and 51 ± 23 μg/dL, and the indocyanine green retention rates at 15 min were 44 ± 13% and 27 ± 12%, with both changes being significant (p 〈 0.01). Minor complications observed were fever of over 38°C and tarry stools due to hemorrhagic gastritis in one patient, which was being controlled conservatively. One patient died of hepatocellular carcinoma 27 months after TJO. The other four patients survived without recurrence of CPSE 17–74 months (44 ± 24 months) after TJO. We conclude that TJO can be adopted as a safe and effective treatment for CPSE. RID="" ID="" 〈E5〉Correspondence to:〈/E5〉 F. Chikamori
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-0533
    Keywords: mdx and control mice muscles ; Dystrophin ; Quick-freeze, deep-etch, rotary-shadow replica ; Muscle plasma membrane-associated cytoskeletons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The Duchenne muscular dystrophy gene product “dystrophin” is a sarcolemma-associated cytoskeleton which is present just inside the sarcolemma. We investigated the ultrastructure and the relationship of this cytoskeleton to the muscle plasma membrane by immunoelectron microscopy and freeze-etch electron microscopy of liquid helium-frozen fresh muscles. The immunoelectron microscopy of the extensor digitorum longus muscles of six mdx mice and six control mice showed the location of anti-dystrophin antibody along the muscle plasma membrane undercoat of all the muscle samples from the control mice without any antibody reaction in the mdx mice muscles. Fresh extensor digitorum longus muscles of seven mdx and six control mice were quick-frozen in liquid helium in the rapid-freeze device. High-magnification electron microscopy of the deep-etch, rotary-shadow replicas of the frozen muscles showed the network formation and attachment of individual rod-shaped cytoskeletons of variable size to the cytoplasmic surface of the muscle plasma membrane in both mdx mice and control mice. The length of cytoskeletons attached to the muscle plasma membranes was measured and mean length±SE in mdx mice and control mice were 98±4 nm and 101±3 nm, respectively. Although these values were not statistically different (P〉0.1), the distribution frequency of 130–150 nm muscle plasma membrane-associated cytoskeletons was 7.9% in mdx mice versus 14.5% in control mice. Since the predicted length of dystrophin is 125–150 nm, the 130- to 150-nm plasma membrane-associated cytoskeletons of mdx control mice may include dystrophin.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0533
    Keywords: mdx and control mice muscles ; Quick-freeze, deep-etch, rotary-shadow replica ; Gold-labelled dystrophin ; Shape of dystrophin molecule
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The Duchenne muscular dystrophy product ‘dystrophin’ has been shown to be located at the inner surface of normal muscle plasma membrane. This study was undertaken to visualize the shape of dystrophin molecules and their topographical distribution at the inner surface of murine skeletal muscle plasma membrane. The immunogold electron microscopy of plastic-embedded quadriceps femoris muscles of six mdx mice and six control mice showed the presence of gold particles along the muscle plasma membrane undercoat of all muscle samples from the control mice without any antibody reaction in the mdx mice muscles. The gold-labelled muscles of six mdx and six control mice were quickly frozen by liquid helium in a rapid-freeze apparatus. High magnification electron microscopy of the quick-freeze, deep-etch, rotary-shadow replicas of the gold-labelled muscles demonstrated the presence of dystrophin molecules associated with gold particles at the cytoplasmic surface of mdx control mice. The dystrophin molecules displayed a variety of shapes, such as rods with a reduction in diameter from one end to the other end and/or with the enlargement of their end(s). These dystrophin molecules were incorporated in the meshowork of muscle plasma membrane-associated cytoskeletons.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Abdominal imaging 21 (1996), S. 299-303 
    ISSN: 1432-0509
    Keywords: Key words: Gastric varices—Gastrorenal shunt—Transjugular retrograde obliteration.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. We evaluated the transjugular retrograde obliteration (TJO) in treatment of gastric varices with gastrorenal shunt. Twenty patients with posthepatitic cirrhosis were included in this study. A cobra-shaped 5 French occlusive balloon catheter was inserted into the gastric varices or gastrorenal shunt through the internal jugular vein. As the sclerosants, absolute ethanol and 5% ethanolamine oleate with iopamidol were injected into the varices to make thrombi. In all cases, gastric varices were obliterated successfully. Endoscopic examination 3 months after treatment revealed the complete eradication of gastric varices in all cases. No major complications during or after therapy were observed. We think that TJO can be an effective method for the treatment of gastric varices with gastrorenal shunt.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-0533
    Keywords: Freeze fracture ; Muscle plasma membrane ; Cholesterol ; Fukuyama-type congenital muscular dystrophy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary We used digitonin in freeze-fracture analysis of the muscle plasma membrane cholesterol content in six patients with Fukuyama-type congenital muscular dystrophy and six control children. A significantly greater proportion of surface area was taken up by digitonin-cholesterol complexes in the patients (51.2%±4.7%) than in controls (31.9%±2.9%) (P〈0.01). Since membrane cholesterol has a dynamic regulatory function in affecting the activity of membrane-bound proteins, the increased cholesterol content in the patients suggests a functional abnormality of the muscle plasma membrane in this disease.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Acta neuropathologica 76 (1988), S. 179-184 
    ISSN: 1432-0533
    Keywords: mdx mouse ; Freeze-fracture technique ; Muscle plasma membrane ; Orthogonal arrays
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The structure of the muscle plasma membrane of extensor digitorum longus muscles of X chromosome-linked muscular dystrophy (mdx) mice was studied by freeze-fracture technique at several time points after birth. The common denominator of the abnormalities was the decreased density of orthogonal arrays throughout all the time points examined. The results demonstrated that the ultrastructural features of the muscle plasma membrane alterations in mdx mice were similar to those in Duchenne dystrophy.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-1440
    Keywords: Neuron-specific enolase level ; Cerebrospinal fluid ; Creutzfeldt-Jakob disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The measurement of neuron-specific enolase level in serum and cerebrospinal fluid was conducted time-sequentially in an autopsy confirmed patient with Creutzfeld-Jakob disease. The level was markedly high in the early stage of the disease at which time the brain CT showed no or minimal abnormalities, while falling into the normal range in the advanced stage. This is the first report of the elevated level of neuron-specific enolase in Creutzfeldt-Jakob disease.
    Type of Medium: Electronic Resource
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