Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Cognitive Science 14 (1990), S. 355-384 
    ISSN: 0364-0213
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Psychology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    ISSN: 1432-2277
    Keywords: Key words Kidney transplantation ; race ; Graft survival ; ethnic differences
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Most studies on the influence of recipient race on kidney transplant survival have been performed in the United States. Generally, they show a lower survival in African-Americans than in Caucasians. Since Rotterdam has gradually become a multi-ethnic society, we were able to study the effect of origin on kidney survival. We restricted our study to recipients of a primary cadaveric kidney graft between July 1983 and July 1997 who received cyclosporin as primary immunosuppression. Patients were divided into two main groups according to origin: European (n = 399) and non-European (n = 110). No statistical differences were found for mean donor age, sex distribution, or the total number of HLA-A and DR mismatches. Non-Europeans had significantly more mismatches on their HLA-B locus (P = 0.01) and recipient age was lower (P = 0,003). The reason non-Europeans had lost their native kidneys was more often hypertension and less often congenital or hereditary diseases compared to Europeans. The causes of death and of transplant failure did not differ. A multivariate Cox proportional hazards analysis did not show European or non-European origin to be an independent predictor of graft survival (two categories, P = 0.25). The variable origin in five categories did show an independent influence on graft survival, with Arab en African recipients running higher risks than European and Asian recipients. We conclude that, in our center, the prognosis after kidney transplantation is comparable for Europeans and non-Europeans; however, in the subcategories, Arab and African recipients have a worse prognosis.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    ISSN: 1432-2277
    Keywords: Key words Mycophenolate mofetil ; Mycophenolic acid ; Therapeutic drug monitoring ; Kidney transplantation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Twenty-seven stable kidney transplant recipients treated with cyclosporine and prednisone were converted to mycophenolate mofetil (MMF) and prednisone 1 year after transplantation. After conversion the patients were treated with a standard daily dose of 1 g MMF b. i. d. and 10 mg prednisone for 4 months. Thereafter, two MMF dose reductions were performed with a 4-month interval. Mycophenolic acid (MPA) trough levels were measured at regular intervals. A relation was found between MPA trough levels and MMF dose. The median MPA trough level for patients treated with 1 g MMF b. i. d. was 4.3 μg/ml (0.95–15.5) and 3.0 μg/ml (0.73–7.8) for patients treated with 750 mg b. i. d. (P = 0.0002). The MPA trough levels further decreased from 3.0 to 2.3 μg/ml (0.6–6.63) in patients treated with 500 mg MMF b. i. d. (P = 0.01). Dose reduction of MMF from 1 g to 750 mg b. i. d. could be performed without acute rejections. A further dose reduction to 500 mg b. i. d. elicited 3 rejections. Patients experiencing an acute rejection had a median MPA trough level of 2.3 μg/ml (1.26–3.38) compared to 3.8 μg/ml (1.48–6.52) in patients without an acute rejection (P = 0.25). We conclude that there is a significant relation between MPA trough levels and MMF dose. MPA trough levels were not predictive of rejection in the present study.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    ISSN: 1432-2277
    Keywords: Key words Anti-interleukin-2 receptor monoclonal antibodies ; Prophylaxis ; Interleukin-15 ; Redundancy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We used reverse transcriptase–polymerase chain reaction analysis to study the effects of anti-rejection prophylaxis with an anti-interleukin (IL)-2 receptor (IL-2R) monoclonal antibody (BT563) on the allogeneic process by analyzing intragraft IL-2, IL-4, and IL-15 mRNA expression. Analysis showed an association between rejection and intragraft IL-2 mRNA and IL-4 mRNA transcription, whereas IL-15 was consitutively expressed: IL-2 62 % (8/13) during rejection versus 23 % (8/35) during immunological quiescence (P 〈 0.01); IL-4 69 % versus 23 % (P 〈 0.01). BT563 therapy influenced the intragraft mRNA expression of IL-2 and IL-4 but not of IL-15. In endomyocardial biopsies (EMB) showing rejection, mRNA expression of IL-2 was detectable in 40 % (2/5) during BT563 treatment versus 75 % (6/8) in the absence of BT563; for IL-4, 23 % versus 88 %, respectively. In contrast, IL-15 mRNA transcription was not affected. Quantitative analysis in rejection EMB showed comparable IL-15 mRNA levels during and after BT563 treatment. This study demonstrates that therapeutic intervention within the IL-2-dependent T-cell activation cascade does not completely prevent rejection. Other cytokines, such as IL-15, may participate in IL-2-independent rejections.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    ISSN: 1432-2277
    Keywords: Key words Nontuberculous mycobacterium ; immunosuppression ; kidney transplantation ; Immunosuppression ; nontuberculous myobacterium ; kidney transplantation ; Kidney transplantation ; nontuberculous myobacterium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In April 1997, a 58-year-old renal transplant recipient presented with abscess-like nodules in his left calf and on his right foot. Furuncular disease was suspected and the patient was treated with flucloxacillin. However, the lesions increased in size and became ulcerative. In the following 3 months, cultures of punctuated material, blood, and urine remained negative and gram stains did not reveal micro-organisms. In June 1997, acid-fast stains were positive. A diagnosis of a nontuberculous mycobacterium (NTM) infection was made and empirical antimycobacterial therapy was started. The combination of relatively minor symptoms with enlarged purulent lesions, causing severe morbidity, raises the possibility of NTM infection in the immunocompromised patient.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    ISSN: 1432-2277
    Keywords: Key words Peripheral blood ; Chronic rejection ; CTL frequencies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Cellular mechanisms may play a role in the development of graft vascular disease (GVD). We previously demonstrated that GVD correlated with an increase of donor-specific T-helper 1 cytokine production by graft-infiltrating lymphocytes but not by peripheral blood mononuclear cells (PBMC). These T-helper 1 cytokines aid the generation of cytotoxic T-lymphocytes (CTL). In the present report, we investigated whether there is a relationship between the frequency of donor-specific CTL precursors (pCTL) in PBMC and the development of GVD. We tested PBMC samples of five patients with GVD and five patients without GVD in the periods 3–6 months, 1 year, and 3 years after heart transplantation. At all time points, GVD was not related to the number of pCTL. In conclusion, donor-specific cellular tests in peripheral blood could not be related to GVD. Apparently, donor-specific reactions associated with the induction of GVD can only be monitored in the graft.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    ISSN: 1432-2277
    Keywords: Key words Heart transplantation ; monitoring ; C-reactive protein ; Monitoring protein ; heart transplantation ; C-reactive protein ; C-reactive protein ; acute rejection ; heart
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Histological examination of endomyocardial biopsy (EMB) is the main technique for rejection surveillance after heart transplantation. This technique is elaborate, inconvenient for the patient, and not without complications. We prospectively analyzed whether the measurement of C-reactive protein (CRP), an acute phase protein that quickly rises when there is inflammation, can serve as a marker for immunological quiescence and as an indicator for withholding EMB. During a 6-month period, CRP was measured in all patients referred for EMB as part of the routine follow-up after heart transplantation. Acute rejection in patients with a follow-up of more than 1 year was rare (1/76). In the majority of cases, EMB was taken within the 1-year post-transplantation (170/246 = 69 %). In 71/170 biopsies (42 %), CRP was ≤ 1; in the other 99/170 (58 %), CRP was ≥ 2. When CRP was ≤ 1, acute rejection was diagnosed in 12/70 cases (17 %). In contrast, acute rejection was found in 28/99 cases (28 %) with CRP ≥ 2 (P = 0.1). Although CRP is elevated more often in the presence of acute rejection, its sensitivity does not allow CRP to replace the routine performance of EMB for monitoring rejection after heart transplantation. We did, however, find a prognostic significance with regard to the effect of rejection treatment: in all acute rejections with a CRP ≤ 3 (n = 11), steroids were effective.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    ISSN: 1432-2277
    Keywords: Key words TNF-α ; Soluble TNF receptors ; Living-related ; Kidney transplantation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The TNF-α system is thought to play a central role in the reduced immunity of haemodialysis patients. The imbalance between the high levels of soluble TNF receptors R 1 and R 2 and the low levels of immunoactive TNF-α results in an increased TNF-α buffering capacity leading to reduced immune responses. Apart from impaired renal clearance of the receptors, inefficient TNF-α production as a result of the uraemia may also contribute to the imbalance between this cytokine and its receptors. In patients receiving a living-related kidney transplant, renal function is nearly normalized in a very short period. This restoration of renal function may result in a state of better immunocompetence, either as a result of improved clearance of the receptors or as a result of reversal of the uraemic state. To differentiate between these two possibilities, we measured TNF-α protein, mRNA and the soluble TNF receptors R 1 and R 2 before and after successful renal transplantation. TNF-α mRNA was not affected by transplantation, indicating constant TNF-α production. The imbalance in the TNF-α system was markedly improved after transplantation, although normal values of the soluble receptors were not reached. One year after transplantation in stable kidney transplant recipients there was still an imbalance in the TNF-α system caused by persistently elevated levels of the soluble TNF-receptors. These results suggest that even after successful kidney transplantation the TNF-α system remains activated. However, despite immunosuppressive therapy, recipients of a living-related kidney do have a better balanced TNF-α system compared to haemodialysis patients.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...