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  • 1
    Keywords: SPECTRA ; BLOOD ; neoplasms ; CLASSIFICATION ; GENERATION ; RISK ; RNA ; PATIENT ; INFECTION ; LIVER-TRANSPLANTATION ; ASSOCIATION ; antibodies ; antibody ; virus ; NO ; LYMPHOMA ; MALIGNANCIES ; AGE ; etiology ; LYMPHOCYTES ; case-control studies ; PREVALENCE ; immunosuppression ; B-CELL LYMPHOMA ; HEMOPHILIA ; NON-HODGKINS-LYMPHOMA ; ELISA ; MALIGNANCY ; REGRESSION ; ASSOCIATIONS ; GRADE ; HCV ; hepatitis C ; LYMPHOPROLIFERATIVE DISORDERS ; MALIGNANT-LYMPHOMA ; MIXED CRYOGLOBULINEMIA ; REARRANGEMENT ; RECIPIENTS
    Abstract: Hepatitis C virus (HCV) has been implicated in the etiology of malignant lymphomas. We estimated the risk of lymphoma associated with detection of HCV infection. Cases (n = 529) were consecutive patients newly diagnosed with a lymphoid malignancy between 1998 and 2002 in 4 centers in Spain. Lymphomas were diagnosed and classified using the WHO Classification. Controls (n = 600) were hospitalized patients matched to the cases by 5-year age group, gender and study center. Several medical conditions associated with severe immunosuppression precluded the eligibility of controls. Patients underwent a personal interview and blood sampling. HCV positive subjects were considered those with antibody response to third generation ELISA or detection of HCV RNA with Amplicor 2.0. Cases were systematically tested for HIV antibodies. We used the chi(2) test and unconditional logistic regression to estimate the odds ratio (OR) and 95% confidence interval (95%. Cl) for lymphoma associated with HCV. HCV infection was detected in 40 cases (73%) and 23 (3.8%) control subjects. Six of 16 patients with HIV-related lymphomas and 4 of 8 organ-recipient-related lymphomas were HCV positive. The analysis, excluding HIV-infected subjects and organ recipients, led to a prevalence of HCV of 5.9% among cases and 3.8% among controls. The age-, gender- and center-adjusted OR for all lymphomas was 1.58 (95% Cl = 0.89-2.79). Among all lymphoma categories, HCV was associated with an increased risk of low grade B-cell lymphomas not otherwise specified (NOS) (OR = 35.98, 95% Cl = 4.70-275.4). A 2-fold excess risk associated to HCV was observed for marginal B-cell lymphomas, diffuse large B-cell lymphoma and lymphoma B NOS but the associations were not statistically significant. HCV infection is associated with an increased risk of a broad spectrum of lymphoid neoplasms among non severely immunocompromised subjects in Spain. (C) 2004 Wiley-Liss, Inc
    Type of Publication: Journal article published
    PubMed ID: 15185347
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  • 2
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    German Medical Science GMS Publishing House; Düsseldorf
    In:  125. Kongress der Deutschen Gesellschaft für Chirurgie; 20080422-20080425; Berlin; DOC08dgch8880 /20080416/
    Publication Date: 2008-04-14
    Keywords: ddc: 610
    Language: German
    Type: conferenceObject
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  • 3
    ISSN: 1433-2965
    Keywords: Key words: Body composition – Bone mass – DXA – Exercise – Muscle mass – Osteoporosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract: The aim of this study was to assess bone mass in male elite athletes participating in an impact loading sport (volleyball) and, in particular, to determine whether the asymmetric nature of this sport leads to differences in the skeletal tissue composition of the limbs. Fifteen male volleyball players (VP) (26 ± 4 years, 192 ± 6 cm, 87 ± 9 kg; mean ± SD) and 15 non-active control subjects (25 ± 2 years, 177 ± 8 cm, 72 ± 11 kg; mean ± SD) were studied. VP training sessions (3–6 days/week) included a variety of jumping and weightlifting exercises. The VP were taller and heavier than the control subjects (p〈0.001). Whole-body bone mineral content (BMC) and lean mass were higher in VP after adjustment for body mass and height (p〈0.001). Axial skeleton and limb BMC and bone mineral density (BMD) were higher in VP than in control subjects (p〈0.05). Adjusted lumbar spine (L2–4) BMD was 14% higher in VP than in control subjects (p〈0.05). Similarly, a much greater adjusted BMD was observed in the femoral neck of VP (24%, 20%, 27% and 20% for the femoral neck, intertrochanteric, greater trochanter and Ward’s triangle subregions respectively; p〈0.05). The dominant arm was slightly heavier (≈3%) and had 4% more muscle mass than the contralateral arm in both the VP (p〈0.05) and control subjects (p〈0.05). Greater BMC values (9%), BMD (7%) values and the area occupied by osseous pixels (5%) were recorded in the dominant arm as compared with the nondominant arm in VP (p〈0.05). No differences between arms were observed in control subjects. Right and left leg BMC and BMD values were similar in control subjects while 4% higher BMC values were recorded for the left leg in the VP group (p〈0.05). A close relationship between left leg muscle mass and BMD was observed in the femoral neck subregions of all the subjects (r= 0.81, 0.81, 0.78 and 0.79 for the femoral neck, intertrochanteric, greater trochanter and Ward’s triangle subregions respectively; p〈0.001; n= 30). These findings clearly demonstrate a considerably high BMC and BMD in professional volleyball players which seems to be related to the loading type of exercise they perform.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-0428
    Keywords: Key words TNFα ; B7-1 ; transgenic ; mouse ; diabetes ; autoimmunity ; lymphocytes.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary While transgenic mice expressing tumour necrosis factor-alpha under the control of the beta-cell-specific insulin promoter display a marked lymphocytic infiltration of the islets, they never develop insulin-dependent diabetes mellitus (IDDM). In striking contrast, “double” transgenic mice whose beta cells express both tumour necrosis factor-alpha as well as the co-stimulatory B7-1 molecule all develop IDDM at an early age. Further, administration of anti-CD8 but not anti-CD4 immunoglobulins prevents diabetes onset. These results indicate that while tumour necrosis factor-alpha induced lymphocytic infiltration is not sufficient to effect beta-cell destruction, locally co-stimulated islet-infiltrating CD8+ T lymphocytes could play a critical role in the development of IDDM. [Diabetologia (1994) 37: 1277–1279]
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-0428
    Keywords: TNFα ; B7-1 ; transgenic ; mouse ; diabetes ; autoimmunity ; lymphocytes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary While transgenic mice expressing tumour necrosis factor-alpha under the control of the beta-cell-specific insulin promoter display a marked lymphocytic infiltration of the islets, they never develop insulin-dependent diabetes mellitus (IDDM). In striking contrast, “double” transgenic mice whose beta cells express both tumour necrosis factor-alpha as well as the co-stimulatory B7-1 molecule all develop IDDM at an early age. Further, administration of anti-CD8 but not anti-CD4 immunoglobulins prevents diabetes onset. These results indicate that while tumour necrosis factor-alpha induced lymphocytic infiltration is not sufficient to effect beta-cell destruction, locally co-stimulated islet-infiltrating CD8+ T lymphocytes could play a critical role in the development of IDDM.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Electrochimica Acta 30 (1985), S. 449-454 
    ISSN: 0013-4686
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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