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Lymphoma Diagnosis (lymphoma + diagnosis)

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Medical Sciences	100%

Selected Abstracts

Expression of HYAL2 mRNA, hyaluronan and hyaluronidase in B-cell non-Hodgkin lymphoma: Relationship with tumor aggressiveness

INTERNATIONAL JOURNAL OF CANCER, Issue 2 2005
Philippe Bertrand
Abstract Hyaluronidases and their substrate, hyaluronan (HA), were mainly explored in solid tumors but rarely in hematologic malignancies. While HA involvement was demonstrated in invasion and metastasis in most cases of solid tumors, the role of hyaluronidases in cancer progression remains controversial. One of the hyaluronidases, HYAL2, is suspected to be involved in the first step of HA degradation. In this work, HYAL2 mRNA, HA and total hyaluronidases expression were examined in lymphoma tissue extracts and correlated to the lymphoma subtype. Real-time RT-PCR was performed to evaluate HYAL2 mRNA. HA and hyaluronidase were assayed by enzyme-linked sorbent assay. Our results showed that HYAL2 mRNA expression was correlated to lymphoma diagnosis (p = 6 × 10,3) and was significantly lower in high-grade lymphoma, i.e., diffuse large B-cell diffuse lymphomas (DLBCLs). Several forms of hyaluronidase were detected by zymography and total hyaluronidase activity detected in tissue extracts was not significantly different according to tumor grade. HA levels also correlated to lymphoma subtype (p = 1 × 10,5) and were higher in DLBCLs. Moreover, HYAL2 mRNA and HA expressions were inversely correlated (p = 0.035). HYAL2 gene is localized on chromosome 3p21, which contains candidates tumor suppressor genes. Our results suggest that HYAL2 may have a prognostic significance in lymphomas and an antioncogenic activity. Conversely, HA overexpression in high-grade lymphomas is in favor of its involvement in tumor development and could provide a useful target for lymphoma therapy using HA-binding peptides. [source]

Lymphoid hyperplasia of the large intestine: A case report with immunohistochemical and gene analysis

PATHOLOGY INTERNATIONAL, Issue 9 2000
Sakae Nagaoka
A case of lymphoid hyperplasia arising in the large intestine of a 54-year-old woman is described. Barium enema X-ray and colonoscopic examination revealed multiple small polyps in the right side of the colon. Pathological findings from forceps biopsy revealed similar features to a mucosa-associated lymphoid tissue (MALT) lymphoma. A right hemicolectomy with mesenteric lymph node dissection was carried out. Histological sectioning demonstrated hypertrophic lymphoid follicles with well-formed germinal centers. Occasionally, lymphocytes infiltrated the crypts, in a way similar to that found in lymphoepithelial lesions, which was suggestive of a MALT lymphoma diagnosis. Cryptitis was also observed in the lamina propria. Immunohistochemically, proliferating lymphocytes were positive for CD20 (L26) and negative for CD45RO (UCHL-1). Analyses of immunoglobulin gene (IgHJH) rearrangement could not detect any monoclonality in these cells. These findings suggested that the present case should be categorized as lymphoid hyperplasia rather than lymphoma. [source]

Complementary and alternative medicine use among long-term lymphoma survivors: A pilot study,

AMERICAN JOURNAL OF HEMATOLOGY, Issue 12 2009
Thomas M. Habermann
No published survey has specifically addressed the beliefs, knowledge, and usage of complementary and alternative medicine (CAM) in long-term (5,20 years) lymphoma survivors alone. In this pilot project, 95 subjects were randomly selected from a population of 2,475 long-term lymphoma survivors and mailed a questionnaire. The median time from lymphoma diagnosis to completion of the questionnaire was 11 years (range 6,20). Overall, 68% (95% CI: 54,80%) of the long-term lymphoma survivors reported that they have used CAM, a rate higher than the estimated usage rate reported for the general population The most commonly used modalities were chiropractic (39%, 95% CI: 27,53%) and massage therapy (21%, 95% CI: 12,34%). Less than 10% used meditation (5%, 95% CI: 1,15%) and relaxation (7%, 95% CI: 2,17%). In terms of common herbal usage, 5% (95% CI: 1,15%) had used St. John's Wort and 7% (95% CI: 2,17%) had used shark cartilage. Although none of the patients reported that CAM usage was directed specifically towards treating their lymphoma, 4% (95% CI: 0,12%) of patients reported that CAM could cure cancer, and 14% (95% CI: 6,26%) reported that CAM could increase their feeling of control over their health. This pilot study suggests that long-term lymphoma survivors appear to use CAM at a rate higher than the general population. The use of potential agents of risk by the survivors and the lack of access to potentially beneficial modalities highlights the need for further study of CAM in this population. Am. J. Hematol., 2009. © 2009 Wiley-Liss, Inc. [source]

The impact of follicular (FL) and other indolent non-Hodgkin's lymphomas (NHL) on work productivity,a preliminary analysis

PSYCHO-ONCOLOGY, Issue 5 2009
Matthew C. Cheung
Abstract Introduction: Although much is known about the efficacy, toxicity, and direct costs of treatment for follicular lymphoma (FL), there is no data assessing the impact of this diagnosis on the work productivity of affected individuals. Methods: We conducted a cross-sectional survey study of consecutive patients attending a malignant haematology clinic at a large multi-disciplinary cancer centre. Patients with a diagnosis of FL or other indolent non-Hodgkin's lymphoma completed questionnaires assessing health status, work productivity, and activity impairment. Results: Eighty-four patients completed the survey study (95% response). Patients who continued to work reported a minimal impact on their work productivity (10%±standard deviation SD 20; 0%=no effect and 100%=complete impairment of activity) and on their daily activities (13%±SD 25) attributable to their cancer. Prior to lymphoma diagnosis, over 71% of patients were working while 14% were retired. At the time of survey administration, only 41% of patients were still able to work with a significant proportion of patients having transitioned to retirement (36%), sick leave (10%), or unemployment (4%). On multivariate analysis, significant activity impairment (daily activity impairment>50%) was predicted by poor self-rated health status (OR 32.1; 95% CI: 5.9,174.2; p<0.0001) and active chemotherapy treatment (OR 14.5; 95% CI: 0.91,230.9; p=0.059). Conclusions: Although few patients with indolent lymphoma identified significant impairment in productivity, many were unable to continue employment following diagnosis, needed to miss days from work, or imposed a significant burden on caregivers. The greatest impact on activity is apparent in patients who rate their health status as poor and in those who are currently receiving systemic therapy. Copyright © 2008 John Wiley & Sons, Ltd. [source]