Lyons

About: Lyons is a based out in . It is known for research contribution in the topics: Population & Biomonitoring. The organization has 2355 authors who have published 1797 publications receiving 51399 citations.

CHOP Chemotherapy plus Rituximab Compared with CHOP Alone in Elderly Patients with Diffuse Large-B-Cell Lymphoma

Abstract: Background The standard treatment for patients with diffuse large-B-cell lymphoma is cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP). Rituximab, a chimeric monoclonal antibody against the CD20 B-cell antigen, has therapeutic activity in diffuse large-B-cell lymphoma. We conducted a randomized trial to compare CHOP chemotherapy plus rituximab with CHOP alone in elderly patients with diffuse large-B-cell lymphoma. Methods Previously untreated patients with diffuse large-B-cell lymphoma, 60 to 80 years old, were randomly assigned to receive either eight cycles of CHOP every three weeks (197 patients) or eight cycles of CHOP plus rituximab given on day 1 of each cycle (202 patients). Results The rate of complete response was significantly higher in the group that received CHOP plus rituximab than in the group that received CHOP alone (76 percent vs. 63 percent, P=0.005). With a median follow-up of two years, event-free and overall survival times were significantly higher in the CHOP-plus-rit...

Skin cancers after organ transplantation.

Abstract: Skin cancers are the most common tumors in patients who have received organ transplants. This review discusses the epidemiology, pathogenesis, and management of squamous-cell and basal-cell carcinomas, cancers of the anogenital region, Kaposi's sarcoma, melanoma, neuroendocrine skin carcinoma, and cutaneous manifestations of lymphoma in transplant recipients.

Rate of Pregnancy-Related Relapse in Multiple Sclerosis

Abstract: Background and Methods Multiple sclerosis often occurs in young women, and the effect of pregnancy on the disease is poorly understood. We studied 254 women with multiple sclerosis during 269 pregnancies in 12 European countries. The women were followed during their pregnancies and for up to 12 months after delivery to determine the rate of relapse per trimester and the score on the Kurtzke Expanded Disability Status Scale (range, 0 to 10, with higher scores indicating more severe disability). The relapse rate in each trimester was compared with the rate during the year before the pregnancy. The effects of epidural analgesia and breast-feeding on the frequency of relapse during the first three months post partum and the disability score at 12 months post partum were also determined. Results The mean (±SD) rate of relapse was 0.7±0.9 per woman per year in the year before pregnancy; it was 0.5±1.3 during the first trimester (P=0.03 for the comparison with the rate before pregnancy), 0.6±1.6 during the secon...

Relapses and progression of disability in multiple sclerosis.

Abstract: Background The influence of the patterns of onset of multiple sclerosis and relapses of the disease on the time course of irreversible disability is controversial. Methods In 1844 patients who had had multiple sclerosis for a mean (±SD) of 11±10 years, we determined the time of the clinical onset of the disease, the initial course (relapsing–remitting or progressive) and the subsequent course (relapsing–remitting, secondary progressive, or primary progressive), the times of relapses, the time to the onset of irreversible disability, and the time course of progressive, irreversible disability. We used three scores on the Kurtzke Disability Status Scale (range, 0 to 10, with higher scores indicating more severe disability) as measures of the severity and progression of disability: a score of 4 (limited walking ability but able to walk more than 500 m without aid or rest), a score of 6 (ability to walk with unilateral support no more than 100 m without rest), and a score of 7 (ability to walk no more than 10...