Archive for October, 2008
October 31st, 2008. Pemetrexed combined with paclitaxel: a dose-finding study evaluating three schedules in solid tumors
The RD determined was pemetrexed 500 mg/m2 (d8) and paclitaxel 90 mg/m2 (d1 and d8), q21d. The combination was well tolerated and showed efficacy in thyroid carcinoma and mesothelioma.
October 31st, 2008. Diffuse malignant pleural mesothelioma: A multi-institutional clinicopathological study
Conclusions: The definitive diagnosis of early MPM is difficult, but establishing the best diagnostic modality would improve survival rates, since radical surgery is likely to be effective for resectable disease.
October 31st, 2008. Crocidolite and Mesothelioma
The authors performed a detailed analysis of cases in which crocidolite was identified in the absence of amosite. Most of such cases were identified in recent years, a finding of concern since crocidolite is considered the most potent fiber type with respect to the pathogenesis of mesothelioma.
October 31st, 2008. Semi-rigid thoracoscopy for undiagnosed exudative pleural effusions: a comparative study
Conclusions: Medical thoracoscopy is a simple, safe, and cost-effective tool, with a high positive rate. Physicians should extend its access to proper patients if the facilities for medical thoracoscopy are available.
October 23rd, 2008. The mortality of women exposed environmentally and domestically to blue asbestos at Wittenoom, Western Australia
Conclusion: Women who were former residents of Wittenoom, exposed to asbestos in their environment or in their home, have excess cancer mortality, including mesothelioma, compared with the Western Australian female population.
October 23rd, 2008. US mesothelioma patterns 1973-2002: indicators of change and insights into background rates
The background rate for persons below age 50 is approximately one per million, independent of sex. Future data are needed to estimate this rate for older age groups.
October 23rd, 2008. Malignant abdominal mesothelioma: defining the role of surgery
Conclusion: Surgical extirpation of MAM may be associated with significantly improved survival. All patients with MAM should be evaluated for potential surgical resection.
October 22nd, 2008. A case of non-tuberculous mycobacteriosis with pleurisy with a past history of dense exposure to environmental asbestos
A final diagnosis of NTM was confirmed via open biopsy of the lung. Our case suggests that in addition to tuberculosis, NTM should be taken into consideration as a complication of silicosis.
October 22nd, 2008. Interaction of onconase with the human ribonuclease inhibitor protein
This inhibition occurs with Ki = 0. 15 μM in a solution of low salt concentration.
October 22nd, 2008. A case of solid pseudopapillary tumour of the pancreas and malignant mesothelioma
Discussion: An abdominal computerised tomogram revealed pancreatic body mass arising. Pleural fluid cytology and a pleural biopsy failed to demonstrate malignancy. The pancreatic tumour was resected by distal pancreatectomy, segmental colectomy and splenectomy. The tumour was a solid pseudopapillary pancreatic tumour (SPT) with a high metastatic potential. The patient deteriorated and a repeat biopsy of the thickened pleura confirmed malignancy which was initially thought to be metastases from the SPT. Immunohistochemical staining confirmed malignant mesothelioma. The patient developed liver metastases and died 2 years from the diagnosis of metastatic disease.
Posted in Case Study, CT or CAT scan, Diagnosis & Differentiation, Full Archive, Immunohistochemistry or IHC, Pleural Effusion, Surgery, Survival, Symptoms & Symptom Management, Treatment, Type of Assessment: | No Comments »
October 18th, 2008. Carboplatin and pemetrexed in the management of malignant pleural mesothelioma: A realistic treatment option?
Conclusion: The combination of carboplatin and pemetrexed may be a viable option in the treatment of malignant pleural mesothelioma.
Posted in Carboplatin, Chemotherapy, Cisplatin (Platinol ®), Determining Efficacy, Full Archive, Pemetrexed (Alimta), Pleural, Survival, Treatment, Type of Assessment:, Type of Mesothelioma: | No Comments »
October 18th, 2008. Lung fiber burden in the Nottingham gas mask cohort
The decline in concentrations with time confirms the hypothesis that crocidolite and, by inference, other amphibole fibers are slowly removed from the lung, but since the longer more carcinogenic fibers were cleared more slowly it is unclear to what extent this clearance explains the slowing down of the increase in mesothelioma mortality from about 40 years from the most recent exposure. The exact biostatistical models which most closely conform with the data remain open to question.
October 18th, 2008. Expression and Regulation of Epithelial Na+ Channels by Nucleotides in Pleural Mesothelial Cells
Furthermore, we found that both forskolin and cGMP increased the short-circuit currents in mouse pleural tissues. Taken together, our data demonstrate that the ENaC channels are biochemically and functionally expressed in human pleural mesothelial cells, and can be up-regulated by cAMP and cGMP.
October 18th, 2008. The cytotoxic ribonuclease onconase targets RNA interference (siRNA)
The data thus provide evidence that one of the targets of Onc is siRNA, likely within the RNA-induced silencing complex (RISC). In light of the findings that microRNAs are involved in tumor pathogenesis as well as in enhancing cell resistance to anticancer therapy the present data may provide explanation for both, the antitumor Onc activity and its propensity to enhance effectiveness of cytotoxic drugs.
October 17th, 2008. Down-regulation of Inhibition of Differentiation-1 via Activation of Activating Transcription Factor 3 and Smad Regulates REIC/Dickkopf-3–Induced Apoptosis
In summary, we first showed that both ATF3 and Smad were crucially and synergistically involved in down-regulation of Id-1, which regulated JNK phosphorylation in REIC/Dkk-3-induced apoptosis. Thus, gene therapy with REIC/Dkk-3 may be a promising therapeutic tool for MM.
October 16th, 2008. Histologic assessment and prognostic factors of malignant pleural mesothelioma treated with extrapleural pneumonectomy
Postoperative treatment was associated with DSS and with recurrence-free survival. Our study confirms that in many cases, final histopathologic typing of MPM is influenced by complete surgical resection and that initial biopsy should be carefully weighed in the treatment stratification.
October 16th, 2008. A useful antibody panel for differential diagnosis between peritoneal mesothelioma and ovarian serous carcinoma in Japanese cases
The results identified calretinin and thrombomodulin as positive markers and Ber-EP4, MOC-31, CA19-9, and estrogen receptor as negative markers with relatively high sensitivity and specificity for the differential diagnosis of PM and SC. The combination of these positive and negative markers may contribute to accurate diagnosis and adequate therapy for PM and ovarian SC.
October 16th, 2008. Cardiac tamponade as primary manifestation of angioimmunoblastic T-cell lymphoma (AILT). Coexistence with malignant mesothelioma
Conclusion: CT as primary clinical manifestation of AILT is very rare. This case reflects the differences in the underlying biology of AILT and consequently the vast spectrum of its clinical presentations. Coexistence of AILT with malignant pleural mesothelioma is also extremely rare.
October 11th, 2008. Pulmonary epithelioid hemangioendothelioma mimicking mesothelioma
Mesothelioma markers were universally negative and cytokeratin was focally reactive only in some epithelioid cells. Epithelioid hemangioendothelioma is a rare tumor in the lung that can mimic other more common pathological entities, and should be included in the differential diagnosis of unusual pulmonary neoplasms with epithelioid or biphasic morphology.
October 10th, 2008. Mortality from Occupational Exposure to Relatively Pure Chrysotile: A 39-Year Study
Conclusions: Occupational exposure to relatively pure chrysotile within permissible levels was not associated with a significant increase in lung cancer or with mesothelioma. Decreased overall mortality of workers indicates a healthy worker effect, which - together with the relatively small cohort size - could have prevented small risks to be detected.
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