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I?Satish?RaoEmail author Anand?C?Loya KS?Ratnakar VR?Srinivasan 《BMC clinical pathology》2005,5(1):11
Background
Lymph node infarction is known to occur in association with many non-neoplastic and neoplastic conditions however its occurrence in association with DIC is not reported hitherto in the literature. 相似文献2.
Persistent HBV and HCV infection represent major causes of chronic liver disease with a high risk of progression to liver cirrhosis and hepatocellular carcinoma (HCC). Conventional protein-based vaccines are highly efficacious in preventing HBV infection; whereas in therapeutic settings with chronically infected patients, results have been disappointing. Prophylactic vaccination against HCV infection has not yet been achieved due to many impediments including frequent spontaneous mutations of the virus with escape from immune system control. Using animal models it has been demonstrated that DNA-based immunisation strategies may overcome this problem because of their potential to induce immunity against multiple viral epitopes. DNA-based vaccines mimic the effect of live attenuated viral vaccines, eliciting cell mediated immunity in addition to inducing humoral responses. Efficacy may further be improved by addition of DNA encoding immunomodulatory cytokines and more recently, direct genetic modulation of antigen-presenting cells, such as dendritic cells (DC), has been shown to increase antigen-specific immune responses. This review focuses on immunological aspects of chronic HBV and HCV infection and on the potential of DNA- and DC-based vaccines for the treatment of chronic viral hepatitis. 相似文献
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Arruda VR; Pieneman WC; Reitsma PH; Deutz-Terlouw PP; Annichino-Bizzacchi JM; Briet E; Costa FF 《Blood》1995,86(8):3015-3020
The molecular characterization of the mutations in hemophilia A patients is hampered by the large size of the factor VIII gene and the great heterogeneity of mutations. In this study, we have performed a protocol involving multiplex polymerase chain reaction in which 19 exons were amplified in four different combinations followed by nonradioactive single-strand conformational polymorphism (SSCP) to screen for mutations. Southern blotting was used to detect inversion of the factor VIII gene resulting from recombination between copies of the gene A (F8A) located in intron 22 of the factor VIII gene and two copies close telomeric region of X chromosome. Forty-two hemophilia A patients (21 with severe and 21 with mild-to-moderate disease) were studied. The inversion of factor VIII occurred in 13 of 21 patients affected by severe hemophilia A. One patient showed a large extra band in addition to the three bands observed after Southern blotting with the F8A probe. An abnormal electrophoretic pattern of SSCP was detected in 85% and 50% of the patients affected by mild-to-moderate and severe disease, respectively. Sixteen different mutations were identified. Eleven mutations were novel and comprised 9 point mutations and 2 small deletions. This study shows that the methodology used is safe and rapid and has potential for detecting almost all of the genetic defects of the studied hemophilia A patients. 相似文献
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Beckebaum S Cicinnati VR Zhang X Malago M Dirsch O Erim Y Frilling A Broelsch CE Gerken G 《Transplantation proceedings》2004,36(5):1489-1491
Allograft reinfection with hepatitis C virus (HCV) in transplant recipients occurs commonly and represents a major concern in the transplant setting. Suppression of viral replication in HCV transplant patients should prevent or delay progression to cirrhosis and graft failure. In this ongoing study, we present preliminary data from a prospective trial of standard interferon (IFN) alpha-2b (2 million units daily) for 3 months and subsequent peginterferon (PEG IFN) alpha-2b (1.5 microg/kg/week) for 9 months. IFN therapy was combined with ribavirin (10 to 12 mg/kg). So far, HCV has become undetectable by qualitative PCR in 33% of patients while 25% had a reduction of HCV RNA to undetectable by the bDNA assay and 42% had no virological response after 6 months of therapy. A biochemical response was detected in 42% of patients. Improvement of inflammatory activity was observed in 42% of patients after 6 months. In three patients anemia necessitated administration of erythropoietin and three patients received granulocyte-colony stimulating factor (G-CSF) due to leucopenia [corrected] In conclusion, we observed that daily IFN alpha-2b and subsequent PEG IFN alpha-2b therapy in combination with ribavirin provides biochemical and virological benefits in transplant recipients with established recurrent HCV infection. 相似文献
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Right living donor liver transplantation: an option for adult patients: single institution experience with 74 patients 总被引:17,自引:0,他引:17 下载免费PDF全文
Malagó M Testa G Frilling A Nadalin S Valentin-Gamazo C Paul A Lang H Treichel U Cicinnati V Gerken G Broelsch CE 《Annals of surgery》2003,238(6):853-863
OBJECTIVE: To present an institutional experience with the use of right liver grafts in adult patients and to assess the practicability and efficacy of this procedure by analyzing the results. SUMMARY BACKGROUND DATA: Living donor liver transplantation (LDLT) for the pediatric population has gained worldwide acceptance. In the past few years, LDLT has also become feasible for adult patients due to technical evolution in hepatobiliary surgery and increased experience with reduced-size and split-liver transplants. Nevertheless, some graft losses remain unexplained and are possibly due to unrecognized venous outflow problems. METHODS: From April 1998 to September 2002, we performed 74 right LDLTs (segments 5-8). The 74 donors were selected from 474 candidates according to standard protocol. The median age of the donors was 35 years (range 18-58 years) and 51 years (range 18-64 years) in recipients. Standard and extended indications for transplantation were considered. Over the period reported, technical modifications in the bile duct anastomosis (duct-to-duct, end-to-end, or end-to-side) and a new graft implantation technique that provides maximized venous outflow, leading to outcome improvement, were developed. RESULTS: 64.9% of patients had liver cirrhosis and 35.1% had malignancy. While 44 donors (59.5%) presented an uneventful postoperative course, 27% minor (pleural effusion, pneumonia, venous thrombosis, wound infection, incisional hernia) and 13.5% major (biliary leakage, death of a donor due to unrecognized hereditary liver disease, and consecutive liver insufficiency) complications were documented. In recipients, 23% biliary complications and 6.8% hepatic artery thrombosis occurred. The overall patient and graft survival rate after 1 year was 79.4% and 75.3%, respectively. In cases with extended indication, the patient survival rate was 74% and the graft survival rate 68% at 12 months. Using technical modifications in the last 10 recipients, including 2 critically decompensated cirrhotics, the survival rate was 100% at a median follow-up of 3.5 months. CONCLUSIONS: In our transplant program, living donor liver transplantation has become a standard option in the adult patient population. The critical issue of this procedure is donor morbidity. Technical improvements in the harvesting and implantation of right grafts can also offer hope to patients with challenging forms of end-stage liver disease or malignant liver tumors. 相似文献