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  • 1
    ISSN: 1436-2813
    Schlagwort(e): chemically induced carcinogenesis ; N-methyl-N-amylnitrosamine (MAN) ; esophageal carcinoma ; rat ; gastrin
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract We surgically prepared a hypergastrinemia model in rats and studied the effects of hypergastrinemia on chemically induced carcinogenesis in the esophagus. Operations were performed on 5-week-old male Donryu rats as follows: (1) truncal vagotomy plus pyloroplasty (group V), (2) segmental gastrectomy plus pyloroplasty (group G), (3) antrectomy (group A), and (4) no operation (group C) as a control. From the age of 6 weeks, the animals were given 0.003% N-methyl-N-amylnitrosamine (MAN) solution as drinking water for 8 weeks. After 20 weeks of MAN administration, the animals were bled and killed. The average serum gastrin levels in groups V and G were significantly higher than those groups C or A. There were significant differences between C and V in the incidence of carcinoma, and between V and A in the incidence of carcinoma including severe dysplasia. The incidence of histologically identified lesions per animal was determined, and significant differences were observed between C and both V and G in the incidence of carcinoma including severe dysplasia. Furthermore, we also detected gastrin receptors in the esophageal lesions produced by the oral administration of MAN to rats. The results of the present study suggest that endogenous hypergastrinemia has a positive influence on chemically induced carcinogenesis in the rat esophagus.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    ISSN: 1436-2813
    Schlagwort(e): Key Words: neuroblastoma ; adult ; retroperitoneal tumor ; CA125
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    ISSN: 1436-2813
    Schlagwort(e): Key Words: splenic artery aneurysm ; systemic lupus erythematosus ; ligation of the splenic artery
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    ISSN: 1436-2813
    Schlagwort(e): splenic artery aneurysm ; systemic lupus erythematosus ; ligation of the splenic artery
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract We herein report on a 64-year-old Japanese female patient who presented with a splenic artery aneurysm (SAA) associated with systemic lupus erythematosus (SLE). The saccular aneurysm, which measured 3 cm in diameter, was located in the proximal third of the splenic artery from the pancreas with a portosystemic shunt. A double ligation of the splenic artery (the distal and proximal sides of the aneurysm) was performed without a splenectomy. The postoperative course showed acute pancreatitis without either splenic infarction or portal thrombus. To our knowledge, the closed association of SLE with an aneurysmal dilatation of the splenic artery has not been previously reported. Both the pathogenesis and the management of SAA associated with SLE are discussed following the presentation of this case. This is the first reported case of SAA associated with SLE.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 5
    ISSN: 1432-2323
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Beschreibung / Inhaltsverzeichnis: Résumé Les effets del'administration pré-opératoire de l'association bléomycine (BLM) et radiothérapie ont été étudiés par les auteurs. Sur 206 malades atteints de cancer de l'oesophage dont la tumeur a été réséquée et étudiée histologiquement, 109 ont été traités en pré-opératoire par cette association. Les résultats ont été comparés avec ceux des malades qui ont été traités seulement par la radiothérapie ou par la bléomycine ou qui n'ont pas subi de traitement pré-opératoire. Par comparaison l'association BLM-radiothérapie a donné de meilleurs résultats que la radiothérapie isolée. L'efficacité sur les cellules néoplasiques et sur les adénopathies associées s'est traduite par un meilleur pronostic: 32,2 pour cent de survie à 5 ans dans le premier groupe et seulement 16,3 pour cent dans le second groupe (avec une moyenne globale de 26,2 pout cent) La dose nécessaire de bléomycine s'élève à 75mg (7.5mg par jour pendant 10 jours) et celle des rayons à 3 000 rads (200 rads pendant 15 jours). Le traitement pré-opératoire s'étend sur 3 semaines cependant que l'opération est entreprise de une à trois semaines après son arrêt. La BLM peut être remplacé par d'autres agents thérapeutiques actifs sur les cancers de type malphighien.
    Kurzfassung: Abstracto Se acometió la evaluación de la terapia preoperatoria combinada con Bleomicina (BLM) y radioterapia para carcinoma esofágico. De 206 pacientes con carcinomas esofágicos resecados y examinados histológicamente, 109 fueron tratados con BLM e irradiación (grupo BR) y comparados con otros grupos: el grupo R, fué tratado con irradiación sólamente, el grupo B con BLM sólamente y el grupo N no recibió tratamiento preoperatorio. La terapia combinada de BLM e irradiación en comparación, particularmente con la radioterapia simple, fué considerada como de mejor efectividad histológica sobre las células carcinomatosas, especialmente en los ganglios linfáticos remotos, y de mejores resultados pronósticos representados por las tasas de supervivencia a 5 años: 32.2% para el grupo tratado con la primera forma de terapia y 16.3% para el grupo tratado con la ultima (promedid, 26.2%). La dosis ideal total de BLM puede ser 75 mg (intramuscular, 7.5 mg por 10 días) y la irradiación 3.000 rads (200 rads × 15 días), en ambos casos en 3 semanas, y la operación puede ser realizada una a dos semanas después de completado este tratamiento. La BLM puede ser reemplazada por otros agentes quimioterapéuticos que se crea son efectivos en carcinoma escamocelular.
    Notizen: Abstract Evaluation of the preoperative combined bleomycin (BLM) and radiation therapy for esophageal carcinoma was undertaken. Of 206 patients with esophageal carcinomas resected and histologically examined, 109 were treated with BLM and radiation (BR group) and compared with the other groups consisting of group R which was treated with radiation alone, group B with BLM alone, and group N with no preoperative treatment. The combined BLM and radiation therapy in comparison particularly with simple radiation therapy was considered to have better histological effectiveness on carcinoma cells, particularly in remote lymph nodes, and better prognostic results represented by the 5-year survival rates: 32.2% for the group treated with the former therapy and 16.3% for the group with the latter (average, 26.2%). The ideal total dosage of BLM may be 75 mg (intramuscular, 7.5 mg × 10 days) and that of radiation 3,000 rads (200 rads × 15 days), both in 3 weeks, and the operation may be performed 1 or 2 weeks after completion of this treatment. BLM may be replaced by other chemotherapeutic agents that are believed effective in squamous cell carcinomaf.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 6
    ISSN: 1573-7276
    Schlagwort(e): Keywords ; colon 26 ; 5¢-DFUR ; hepatic metastasis ; UFT
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The effects of fluorinated pyrimidines, 5¢-DFUR, UFT and T-506, on a mouse model of hepatic metastasis were assessed in regard to inhibitory activity and adverse reactions at the maximum tolerated dose. The model was prepared by injecting the mouse colonic cancer cell line, colon 26, into the portal vein of CDF1 mice. At the treatment regimens employed for 5¢-DFUR (1.0mmol/kg/day, p.o., daily from days 1 to 7), UFT (0.1mmol/kg/day, p.o., daily from days 1 to 7), and T-506 (0.074mmol/kg/day, i.v., days 1, 4, 7, and 10), complete inhibition of hepatic metastasis was obtained in six out of seven mice (85.7%) with 5¢-DFUR, and in five out of six mice (83.3%) with T-506. Significant inhibition of hepatic metastasis was not achieved with UFT (3/7, 42.9%). 5¢-DFUR and T-506 showed the highest rate of inhibition of hepatic metastasis, suggesting that these drugs would be effective for the prophylactic treatment of metastatic disease. 5¢-DFUR and UFT exhibited mild adverse reactions such as loss of body weight.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 7
    ISSN: 1860-1499
    Schlagwort(e): Adenoid cystic carcinoma ; Esophagus ; Ultrastructure ; Carcinogenesis ; Immunohistochemistry
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Immunohistochemical and electron microscopic findings of a primary adenoid cystic carcinoma of the esophagus from a 71-year-old male patient are described. An oval tumor in the middle intrathoracic esophagus was resected. The tumor appeared similar to a submucosal tumor and was histologically diagnosed as primary adenoid cystic carcinoma (ACC) of the esophagus. The patient has survived for 10 years postoperatively with no evidence of recurrence. Histologically, the tumor showed a cribriform, tubular or solid pattern. A small focus of squamous cell carcinoma (SCC) was found independently. Immunohistochemical results for keratin groups, S-100 protein and smooth muscle actin (αSMA) revealed similar profiles in the ACC tumor tissues and small ducts of the normal esphageal glands. By electron microscopy, tumor cells were found markedly similar to the small duct cells of the normal esophageal gland. These findings. indicate that ACC may originate from the esophageal glands, especially from cells of the small duct including intercalated duct.
    Materialart: Digitale Medien
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