Publications

959 Publications visible to you, out of a total of 959

Abstract

Not specified

Authors: B. Brigl, Alfred Winter

Date Published: 2007

Publication Type: Journal article

Abstract

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Authors: M. Loeffler, Alfred Winter

Date Published: 2007

Publication Type: Journal article

Abstract

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Authors: Ulrike Müller, Alfred Winter

Date Published: 2007

Publication Type: Journal article

Abstract

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Authors: Franziska Jahn, Katsuhiko Takabayashi, Takahiro Suzuki, Shinsuke Fujita, Alfred Winter

Date Published: 2007

Publication Type: InCollection

Abstract (Expand)

OBJECTIVE The provariant of the Pro12Ala polymorphism in peroxisome proliferator-activated receptor (PPAR)gamma has been identified as a risk allele for type 2 diabetes. The purpose of the present studyy was to reveal a significant association with pre-diabetic phenotypes in nondiabetic individuals based on a systematic meta-analysis of all available published evidence. RESEARCH DESIGN AND METHODS We performed a classical meta-analysis of data from approximately 32,000 nondiabetic subjects in 57 studies to assess the effect of the Pro12Ala polymorphism on pre-diabetic traits. RESULTS In the global comparison, there were no differences in BMI, glucose, insulin, or homeostasis model assessment of insulin resistance between the Pro/Pro and X/Ala genotype. However, in the Caucasian subgroup, the X/Ala genotype was associated with significantly increased BMI. In the obese subgroup (BMI \textgreater30 kg/m(2)), fasting glucose (P = 0.041) and insulin resistance (by homeostasis model analysis) (P = 0.020) were significantly greater in the Pro/Pro group. In subjects with the homozygous Ala/Ala genotype, fasting insulin was significantly lower compared with the Pro/Pro genotype (P = 0.040, N(Ala/Ala) = 154). CONCLUSIONS Across all studies, the Pro12Ala polymorphism had no significant effect on diabetes-related traits. Only in selected subgroups, such as Caucasians and obese subjects, did we see an association of the Ala allele with greater BMI and greater insulin sensitivity. This demonstrates the importance for appropriate stratification of analyses by environmental or other genetic factors. Meta-analysis of Ala/Ala homozygotes more clearly demonstrated the association with greater insulin sensitivity of carriers of the Ala allele.

Authors: Anke Tönjes, Markus Scholz, Markus Loeffler, Michael Stumvoll

Date Published: 25th Oct 2006

Publication Type: Journal article

Abstract (Expand)

BACKGROUND: Central nervous system (CNS) relapse is a devastating and usually fatal complication of aggressive lymphoma. The extent of the disease, the proliferation rate and the sites of extranodal involvement have been discussed as risk factors. We analyzed the patients treated on protocols of the German High-Grade Non-Hodgkin's Lymphoma Study Group (DSHNHL) between 1990 and 2000, evaluated the rate and prognostic factors for CNS recurrence and developed a risk model trying to identify subsets of patients suitable for future prophylactic strategies. PATIENTS AND METHODS: From 1993 to 2000, 1399 patients [<or=60 years with normal lactate dehydrogenase (LDH) and >60 years irrespective of LDH] were randomized to receive six cycles of combination chemotherapy with cyclophosphamide, doxorubicin, vincristine and prednisone (CHOP)-21, CHOP-14 or six cycles of CHOP+etoposide (CHOEP)-21, CHOEP-14 in a 2x2 factorial study design in the NHL-B1/B2 studies. From 1990 to 1997, 312 patients<or=60 years with an elevated LDH were randomized to five cycles CHOEP+involved field (IF) radiotherapy or three cycles CHOEP followed by high-dose BCNU, etoposide, cytarabine and melphalan (BEAM) and autologous stem-cell transplantation (NHL-A study). RESULTS: A total number of 1711 patients were initially eligible for this study, of whom 18 patients had to be excluded due to primary CNS involvement. In the remaining 1693 assessable patients, 37 cases of relapse or progression to the CNS (2.2%) were observed. The protocol asked for an intrathecal (i.th.) prophylaxis in patients with lymphoblastic lymphoma only (n=17), but overall 71 patients (71 of 1693=4.2%) received prophylaxis by decision of the treating physicians. Multivariate Cox regression analysis identified increased LDH (P<0.001) and involvement of more than one extranodal site (P=0.002) as independent predictors of CNS recurrence in the NHL-B1/B2 study population. Treatment with etoposide also evolved as a prognostic factor because the risk of CNS failure was significantly reduced after CHOEP (P=0.017). Elderly patients presenting with both an elevated LDH and lymphoma involvement in liver, bladder or adrenals had an up to 15-fold risk of spread of the disease to the CNS. CONCLUSION: The incidence of CNS relapse in 1693 patients treated for aggressive lymphomas on DSHNHL protocols from 1990 to 2000 was low (2.2%), although CNS prophylaxis was administered to <5% of patients. Thus, a general prophylaxis for all patients is not warranted, the less so since the effectiveness of i.th. prophylaxis itself is judged controversially. Increased LDH and involvement of more than one extranodal site were confirmed as independent risk factors. A cumulative 20% incidence of CNS disease in certain prognostic subgroups of elderly patients may render these candidates for i.th. prophylaxis; however, this approach would imply a potential overtreatment of approximately 80% of these patients deemed at high risk.

Authors: V. Boehme, S. Zeynalova, M. Kloess, M. Loeffler, U. Kaiser, M. Pfreundschuh, N. Schmitz

Date Published: 5th Oct 2006

Publication Type: Not specified

Human Diseases: lymphoma

Abstract

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Authors: J. Einenkel, J. P. Kuska, L. C. Horn, N. Wentzensen, M. Hockel, U. D. Braumann

Date Published: 5th Aug 2006

Publication Type: Not specified

Human Diseases: cervical cancer

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