50 research outputs found

    High-Dose Therapy and Autologous Hematopoietic Cell Transplantation in Peripheral T Cell Lymphoma (PTCL): Analysis of Prognostic Factors

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    Patients with peripheral T cell lymphoma (PTCL) have a poor prognosis with current treatment approaches. We examined the outcomes of high-dose therapy (HDT) and autologous hematopoietic cell transplant (AHCT) on the treatment of PTCL and the impact of patient/disease features on long-term outcome. Sixty-seven patients with PTCL–not otherwise specified (n = 30), anaplastic large cell lymphoma (n = 30), and angioimmunoblastic T cell lymphoma (n = 7) underwent HDT/AHCT at the City of Hope. The median age was 48 years (range: 5-78). Twelve were transplanted in first complete remission (1CR)/partial remission (PR) and 55 with relapsed or induction failure disease (RL/IF). With a median follow-up for surviving patients of 65.8 months (range: 24.5-216.0) the 5-year overall survival (OS) and progression-free survival (PFS) were 54% and 40%, respectively. The 5-year PFS was 75% for 1CR/PR compared to 32% for RL/IF patients (P = .01). When the Prognostic Index for PTCL unspecified (PIT) was applied at the time of transplant, patients in the PIT 3-4 group had 5-year PFS of only 8%. These results show that HDT/AHCT can improve long-term disease control in relapsed/refractory PTCL and that HDT/AHCT should ideally be applied either during 1CR/PR, or as part of upfront treatment. More effective and novel therapies are needed for patients with high-risk disease (PIT 3-4 factors) and allogeneic HCT should be explored in these patients

    WMAP constraints on inflationary models with global defects

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    We use the cosmic microwave background angular power spectra to place upper limits on the degree to which global defects may have aided cosmic structure formation. We explore this under the inflationary paradigm, but with the addition of textures resulting from the breaking of a global O(4) symmetry during the early stages of the Universe. As a measure of their contribution, we use the fraction of the temperature power spectrum that is attributed to the defects at a multipole of 10. However, we find a parameter degeneracy enabling a fit to the first-year WMAP data to be made even with a significant defect fraction. This degeneracy involves the baryon fraction and the Hubble constant, plus the normalization and tilt of the primordial power spectrum. Hence, constraints on these cosmological parameters are weakened. Combining the WMAP data with a constraint on the physical baryon fraction from big bang nucleosynthesis calculations and high-redshift deuterium abundance, limits the extent of the degeneracy and gives an upper bound on the defect fraction of 0.13 (95% confidence).Comment: 10pp LaTeX/RevTeX, 6 eps figs; matches accepted versio

    Kidney Transplantation in Patients With Active Multiple Myeloma: Case Reports.

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    Kidney disease is a common complication in patients with multiple myeloma. Traditionally, patients with active multiple myeloma and end-stage renal disease have been excluded from kidney transplantation due to the risk of malignancy progression. The introduction of bortezomib-based therapy for patients with multiple myeloma and renal impairment has significantly improved survival in this population. In this report, we present 2 cases of patients with active and controlled multiple myeloma who underwent successful kidney transplantation without progression of their underlying malignancy. In patients with active multiple myeloma controlled with bortezomib, kidney transplantation should be considered a valid option for patients with end-stage kidney disease

    Kidney Transplantation in Patients With Active Multiple Myeloma: Case Reports

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    Abstract. Kidney disease is a common complication in patients with multiple myeloma. Traditionally, patients with active multiple myeloma and end-stage renal disease have been excluded from kidney transplantation due to the risk of malignancy progression. The introduction of bortezomib-based therapy for patients with multiple myeloma and renal impairment has significantly improved survival in this population. In this report, we present 2 cases of patients with active and controlled multiple myeloma who underwent successful kidney transplantation without progression of their underlying malignancy. In patients with active multiple myeloma controlled with bortezomib, kidney transplantation should be considered a valid option for patients with end-stage kidney disease

    Directory of Curriculum Materials Centers and Collections 8th Edition

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    The 8th Edition of the Directory of Curriculum Materials Center and Collections was compiled by the Curriculum Materials Committee of the Education and Behavioral Sciences Section of the Association of College and Research Libraries, a Division of the American Library Association. It contains data from 112 institutions which have either a curriculum materials center or collection in the United States and Canada. Data includes information about institutional demographics, facilities, staffing, funding, and types of materials selected and cataloged. Multiple figures aggregate the data provided

    Health Care Utilization and Cancer Incidence Following Solid Organ Transplant

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    Background/Aims: Population-based registry studies have found increases in lung, kidney, skin and thyroid cancers among organ transplant recipients compared with the general population. These studies link data from national transplant services and state cancer registries, thereby limiting the ability to describe recommended health care utilization, including preventive services (e.g. influenza vaccinations) and outpatient visits (9 within transplant year), and incident diagnoses of hypertension and diabetes (estimated to be 50% and 18%, respectively). The goal of this study was to characterize health care utilization and cancer incidence among solid organ transplant recipients in Kaiser Permanente Southern California (KPSC). Methods: KPSC transplant registry data was linked to electronic medical records on solid organ transplants from 1990 to 2014. Data was stratified by kidney, liver, heart and lung transplants. Results: Among 4,336 transplant recipients, 62% (2,703/4,336) were white, 80% (3,621/4,336) were \u3e 35 years old, 27% (1,158/4,336) were past smokers and the mean membership length was 5.6 years. Past smoking was highest for lung transplant recipients (34%, 63/185) and liver transplant recipients (33%, 418/1,271). Survival among all transplant recipients was 89% at 2 years posttransplant yet decreased to 65% at 10 years, with the lowest survival among lung recipients (35% at 10 years). Within the first year posttransplant, recipients had a mean number of 5 primary care visits, 7 nephrology visits and 2 visits each for dermatology, urology, and obstetrics and gynecology (women). Influenza vaccination rates have increased over time and were as high as 96% among lung recipients during the 2014-2015 influenza season. Roughly, 12% (322/2,601) and 14% (151/1,082) of transplant recipients had an incident diagnosis of hypertension and diabetes. Finally, there was increased risk of all cancers excluding nonmelanoma skin cancer (standardized incidence ratio: 2.15, 95% confidence interval: 1.93–2.39), with the largest incidence for non-Hodgkin’s lymphoma, lung cancer and kidney cancer. Conclusion: Transplant recipients in KPSC met the recommended number of outpatient visits, including specialty care visits, within the first year posttransplant. Incidences of hypertension and diabetes were lower than expected, and influenza vaccination rates were high. There was a twofold increase in cancer incidence among the solid organ transplant population

    The bulk transition of QCD with twelve flavors and the role of improvement

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    <p>We study the SU(3) gauge theory with N-f = 12 flavors in the fundamental representation by use of lattice simulations with staggered fermions. With a non-improved action we observe a chiral zero-temperature (bulk) transition separating a region at weak coupling, where chiral symmetry is realized, from a region at strong coupling where chiral symmetry is broken. With improved actions, a more complicated pattern emerges, and in particular two first order transitions in the chiral limit appear. We observe that at sufficiently strong coupling the next-to-nearest neighbor terms of the improved lattice action are no longer irrelevant and can indeed modify the pattern observed without improvement. Baryon number conservation can be realized in an unusual way, allowing for an otherwise prohibited oscillating term in the pseudoscalar channel. We discuss the phenomenon by means of explicit examples borrowed from statistical mechanics. Finally, these observations can also be useful when simulating other strongly coupled systems on the lattice, such as graphene. (c) 2013 Elsevier B.V. All rights reserved.</p>
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