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  • 1
    Electronic Resource
    Electronic Resource
    A Study on Capacitance Aging in Ni-Electroded, BaTiO〈sub〉3〈/sub〉-Based MLCCs with X7R Characteristics (1998)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 157-158 (May 1998), p. 17-24 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/44/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.157-158.17.pdf
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  • 2
    Electronic Resource
    Electronic Resource
    Dural chondroma with fat tissue (1997)
    Springer
    Acta neurochirurgica 139 (1997), S. 690-691 
    Details
    ISSN: 0942-0940
    Keywords: Chondroma ; dura mater ; teratoma ; fat tissue
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01412006
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  • 3
    Electronic Resource
    Electronic Resource
    Invasive meningioma: A tumour with high proliferating and “recurrence” potential (1995)
    Springer
    Acta neurochirurgica 136 (1995), S. 127-131 
    Details
    ISSN: 0942-0940
    Keywords: Argyrophilic nucleolar organizer regions (AgNORs) ; invasiveness ; meningioma ; proliferating cell nuclear antigen (PCNA)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A study was undertaken to investigate the correlation between histological invasiveness and proliferating potential and clinical recurrence in meningioma. In 39 meningiomas, the histological findings at the tumour-brain interface zone were classified into 3 types, consisting of 29 cases of non-invasion (NON), 7 cases of nodular invasion (NOD), and 3 cases of intermingled invasion (INT). Proliferating cell nuclear antigen (PCNA) and argyrophilic nucleolar organizer region (AgNOR) indices were studied. PCNA indices (mean±standard error) of NON, NOD, and INT were 1.7±0.1%, 5.2±0.5%, and 7.5±0.7%, respectively, and the AgNOR indices (dot number/nucleus) were 1.50±0.03, 2.00±0.04, and 2.22±0.07, respectively. Significant differences were found among the three types in both parameters. Clinically, tumour recurrence was observed in 1/29 NON, 4/7 NOD, and 2/2 INT cases, indicating a higher incidence of recurrence in invasive meningiomas (NOD plus INT). Four of 32 patients who underwent gross total removal of the tumours showed recurrence, and all of these four tumours were invasive meningiomas. The results of the present study showed that tumour invasiveness as measured by PCNA + AgNOR indices correlated well with high proliferative potential and clinical recurrence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01410613
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  • 4
    Electronic Resource
    Electronic Resource
    Cerebral Germinoma with Syncytiotrophoblastic Giant Cells: Feasibility of Predicting Prognosis Using the Serum hCG Level (1999)
    Springer
    Acta neurochirurgica 141 (1999), S. 975-978 
    Details
    ISSN: 0942-0940
    Keywords: Keywords: Germ cell tumor; syncytiotrophoblastic giant cell; human chorionic gonadotropin (hCG); outcome.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary  As the biological behaviour of germinoma with syncytiotrophoblastic giant cells (STGC) is not well established, the present study was undertaken to ascertain the prognostic significance of serum hCG level in affected patients. Of a total of 23 cases studied, 12 patients were regarded as pure germinomas and 11 were germinomas with STGC. All but one of the former demonstrated an excellent outcome. The exception developed subarachnoid metastases, but the tumour disappeared on radiation therapy and the patient is enjoying a normal social life 13 years after the initial treatment. With the germinoma complicated by STGC, 3 cases showed local recurrence which were followed by a poor outcome. Their pretreatment hCG levels were 15.0, 26.0 and 29.6 mIU/ml respectively. The study showed a tendency, in germinomas with STGC, for a positive association between serum hCG, and the likelihood of a poor outcome. Germinomas with STGC and serum hCG levels higher than 15 mIU/ml thus have a high recurrence rate, and more aggressive treatment is indicated for the affected patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007010050404
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  • 5
    Electronic Resource
    Electronic Resource
    Localization of ladsin, a homolog of laminin-5, in normal adult human tissues: immunohistochemical and immunoelectron microscopic studies (1999)
    Springer
    Medical electron microscopy 32 (1999), S. 25-35 
    Details
    ISSN: 1437-773X
    Keywords: Key words Basement membrane ; Ladsin ; Laminin-5 ; Immunohistochemistry ; Immunoelectron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Ladsin, a homolog of laminin-5, is a large cell-adhesive protein with potent cell-scattering activity. In the present study, we investigated, by immunohistochemistry, the distribution of ladsin in a wide range of normal adult human epithelial tissues along with that of integrin subunit α3 as a marker of integrin α3β1, which is the primary receptor of ladsin. Our results demonstrated that ladsin was localized in the basement membranes of almost all the epithelial tissues with coexisting integrin subunit α3 along the cell membranes, suggesting that their interaction is important in the maintenance of normal architecture and function of these membranes. Only cytoplasmic localization of ladsin was observed in the fundic glands, hepatocytes, renal tubuli, and acini of the mammary glands, and in these tissues, integrin subunit α3 was also localized in the cytoplasm. Both ladsin and integrin subunit α3 were absent in the acini of the pancreas, major salivary glands, and bronchial glands. These tissue- and cell type-specific localizations of ladsin and integrin subunit α3 likely reflect the differences in their role and function in each tissue.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007950050005
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  • 6
    Electronic Resource
    Electronic Resource
    Pituitary choristoma composed of corticotrophs and adrenocortical cells in the sella turcica (1996)
    Springer
    Virchows Archiv 427 (1996), S. 613-617 
    Details
    ISSN: 1432-2307
    Keywords: Pituitary gland ; Choristoma ; Corticotroph ; Adrenocortical cell
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A pituitary tumour composed of well-differentiated corticotrophs and adrenocortical cells is reported. Sections of the tumour revealed a mixture of small round cells with amphophilic or basophilic periodic acid-Schiff (PAS)-positive cytoplasm and large spherical and oval cells with abundant, granular, partly vacuolated PAS-negative cytoplasm. The small cells contained type 1 cytokeratin-positive microfilaments, numerous 250–500 nm endocrine-type secretory granules immunoreactive for adenocorticotropic hormone (ACTH) and β-lipotropin. The large cells possessed ample cytoplasm filled with abundant vesicular smooth endoplasmic reticulum, numerous mitochondria possessing tubulovesicular cristae and frequent dense bodies. They lacked the features of pituitary endocrine cells or folliculostellate cells and were found to contain a panel of steroidogenic dehydrogenases and hydroxylases. The tumour was classified as a choristoma, in which two distinct cells types, corticotrophs and adrenocortical cells, were mixed. We suggest that, under continued ACTH stimulation, uncommitted stem cells may differentiate into adrenocortical cells. Alternatively, the presence of adrenocortical cells may be the result of heterotopia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00202893
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  • 7
    Electronic Resource
    Electronic Resource
    Endoscopic resection for submucosally invasive colorectal cancer (1999)
    Springer
    Surgical endoscopy and other interventional techniques 13 (1999), S. 224-227 
    Details
    ISSN: 1432-2218
    Keywords: Key words: Submucosally invasive cancer — Colon — Endoscopic resection — Polypectomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Recent advances in colonoscopy have resulted in an increasing number of endoscopic resections of colorectal neoplasms. However, endoscopic resection of submucosal invasive cancer remains a controversial issue. Methods: The subjects for this study were the surgically treated patients with submucosal invasive colorectal cancer. These patients were classified into two groups: those with versus those without preoperative endoscopic resection. Clinicopathologic features and prognosis were compared and analyzed. Results: Fifty patients underwent surgery for submucosally invasive colorectal cancer. Numbers of patients with and without preoperative endoscopic resection were 22 and 28, respectively. In 36.4% of the patients, endoscopic resections were incomplete. Two patients in whom the preoperative endoscopic resections had revealed a positive cancer margin, had nodal metastasis. One of these patients also developed hepatic metastasis. Endoscopic findings such as diameter and shape were not indicative of either lymphatic or vascular invasion. There were no morbidities or mortalities associated with endoscopic resection or surgery. Conclusions: Preoperative endoscopic resection for colorectal submucosal cancer is feasible, provided the resection is complete. The indications for surgical treatment should be determined after pathologic examination.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004649900949
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