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  • 1
    ISSN: 1432-2277
    Keywords: Key words Liver transplantation ; Alcoholic cirrhosis ; Alcohol relapse ; Outcome
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Because of the donor shortage, there are concerns for liver transplantation in patients with alcoholic cirrhosis. We therefore analyzed patients transplanted for alcoholic cirrhosis at our center with respect to patient and graft survival, recurrence of disease, and postoperative complications. Out of 1000 liver transplantations performed in 911 patients, 167 patients were transplanted for alcoholic cirrhosis; 91 patients received CsA- and 76 patients FK506-based immunosuppression. Recurrence was diagnosed by patient's or relative's declaration, blood alcohol determination, and delirium. Diagnosis and treatment of acute and chronic rejection was performed as previously described. One- (96.8 % versus 91.3 %) and 9-year patient survival (83.3 % versus 80 %) compared well with other indications. Five of 15 patients died due to disease recurrence. Recurrence of disease was significantly related to the duration of alcohol abstinence prior to transplantation. In patients who were abstinent for less than 6 months (17.1 %), recurrence rate was 65 %, including four of the five patients who died of recurrence. Recurrence rate decreased to 11.8 %, when abstinence time was 6–12 months and to 5.5 %, when the abstinence times was 〉 2 years. Next to duration of abstinence, alcohol relapse was significantly related to sex, social environment, and psychological stability. The incidence of acute rejection compared well with other indications (38.1 %); CsA: 40.1 % versus 33.3 % in FK506 patients. In all, 18.2 % of CsA patients experienced steroid-resistant rejection compared with 2.6 % of FK506 patients. Seven patients (7.6 %) in the CsA group and one patient (1.3 %) in the FK506 group developed chronic rejection. A total of 57.1 % developed infections; 5.7 % were life-threatening. CMV infections were observed in 14.3 % (versus 25 % for other indications). New onset of insulin-dependent diabetes was observed in 8.6 % and hypertension in 32.4 %. In conclusion, alcoholic cirrhosis is a good indication for liver transplantation with respect to graft and patient survival and development of postoperative complications. FK506 therapy was favourable to CsA treatment. Patient selection is a major issue and established criteria should be strictly adhered to. Patients with alcohol abstinence times shorter than 6 months should be excluded, since recurrence and death due to recurrence was markedly increased in this group of patients.
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  • 2
    ISSN: 1435-2451
    Keywords: Key words Crohn’s disease ; Cytolytic activity ; Inflammatory bowel disease ; Intraepithelial lymphocytes ; Natural killer cells ; T cells
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Background and aims: Dysfunction of the immune system with inappropriate responses of lymphocytes to various antigens has been implicated in the development of Crohn’s disease. Therefore, the functional and phenotypic characteristics of intestinal intraepithelial lymphocytes (IEL) in comparison to peripheral blood lymphocytes (PBL) were analyzed in patients with and without Crohn’s disease. Patients and methods: Six patients with Crohn’s disease and six control patients were studied. Isolated IEL and PBL were tested for cytolytic activity against the human adenocarcinoma cells DLD-1 and the human leukemia cells K562 in a 51Cr-release assay. Two-color flow cytometry was performed for phenotype analysis of isolated lymphocytes. Results: IEL from patients with Crohn’s disease showed significantly increased cytolytic activity against epithelial-derived target cells when compared with IEL from control patients. In contrast, no functional changes were detectable among PBL from patients with Crohn’s disease. IEL from patients with Crohn’s disease contained a significantly higher percentage of CD8+ lymphocytes when compared with IEL from control patients, whereas no phenotypic changes were observed among PBL. Conclusions: In Crohn’s disease, the functional and phenotypic changes of T cells are limited to lymphocytes of the intestinal mucosa. Furthermore, it is conceivable that the increased cytolytic activity of IEL contributes to the tissue damage in this disease.
    Type of Medium: Electronic Resource
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