RESUMEN
alpha'-NaV2O5 transforms at Tc = 34K, and the origin of the phase transition seems to be caused by the charge order and spin-Peierls mechanism. However the experiments which reveal the existence of charge order are very little. We measured XANES of V atoms which relates to the valence of V. It was found that the valences of V atoms in NaV2O5 were V4.5+ in the high temperature phase by comparing pre-edge and XANES of NaV2O5 with that of LiV2O5 CaV2O5 and V2O5. The analysis of EXAFS also shows the environment of the V4.5+ state.
RESUMEN
A 78-year-old Japanese female was admitted to our hospital with dysphagia and weight loss. An oesophageal tumour was demonstrated radiologically and endoscopically, and was diagnosed as oesophageal cancer by biopsy. Histologically, the resected tumour showed poorly differentiated squamous cell carcinoma with prominent lymphoid stroma and was diagnosed as the so-called lymphoepithelioma-like carcinoma (LELC). Epstein-Barr virus in the tumour was negative by polymerase chain reaction and in situ hybridization. Oesophageal LELC is extremely rare. The cases in the literature, as well as the one reported here, presented with gross features of a submucosal tumour-like appearance. Although the differentiation of the tumour cells is often poor, prognosis seems to be better than for other types of oesophageal cancer. Oesophageal LELC has characteristic clinicopathological features and should be classified by criteria independent of other types of tumour.
Asunto(s)
Carcinoma de Células Escamosas/patología , Neoplasias Esofágicas/patología , Anciano , Carcinoma de Células Escamosas/diagnóstico por imagen , Carcinoma de Células Escamosas/virología , Endoscopía Gastrointestinal , Neoplasias Esofágicas/diagnóstico por imagen , Neoplasias Esofágicas/virología , Femenino , Herpesvirus Humano 4/aislamiento & purificación , Humanos , Estadificación de Neoplasias , Reacción en Cadena de la Polimerasa , ARN Viral/genética , RadiografíaRESUMEN
Transarterial infusion therapy using adriamycin-Lipiodol emulsion (TAE) was used for 30 patients of HCC with HCV-Ab and 20 patients with HBV-Ag. We compared the tumor effect and prognosis in terms of several clinico-pathological factors. The response rate (PR+MR) after TAE was 43% in HCC patients with HCV-Ab and 30% in those with HBV-Ag. One-year survival rate was 89% in HCC patients with HCV-Ab and 58% in HCC patients with HBV-Ag. Thus, there was a significant difference between the two groups. No definite reasons between two groups influencing tumor effect and prognosis is obviously revealed except for portal vein invasion.
Asunto(s)
Carcinoma Hepatocelular/terapia , Doxorrubicina/administración & dosificación , Embolización Terapéutica , Hepacivirus/inmunología , Anticuerpos Antihepatitis/análisis , Antígenos de Superficie de la Hepatitis B/análisis , Aceite Yodado/administración & dosificación , Neoplasias Hepáticas/terapia , Carcinoma Hepatocelular/inmunología , Emulsiones , Femenino , Arteria Hepática , Humanos , Neoplasias Hepáticas/inmunología , MasculinoRESUMEN
Nine advanced gastric cancer patients were given 17 courses of cisplatin administrations by means of a 24-hour intravenous infusion at a dose of 100 mg/m2. For an anti-emetic, 40 mg of metoclopramide was administered 5 times at 6-hour intervals, along with a 500 mg hydrocortisone administration at the start of the cisplatin infusion. Despite this preventative treatment, nausea and/or vomiting occurred in over one-third of all the courses. Thus, to combat this nausea and/or vomiting, a combination of lorazepam (1.5 mg/day, divided into 3 p.o.), dexamethasone (20, 10 and 10 mg by i.v. at 3, 8, and 24 hours, respectively, after start of the cisplatin infusion), and a 60 mg intravenous administration of metoclopramide (5 times at 6-hour intervals) was given, and it was found that this new method (Method IV) prevented both nausea and vomiting.