m. mortazavizadeh

Let X be a measure space and let E be a measurable subset of X with finite positive measure. In this paper, we investigate frame and Riesz basis properties of a family of functions multiplied by another measurable function in L 2 (E). Also, we study the equivalent conditions for a system of translates to be a Bessel family in L 2 (G) and to be a frame for PE (the space of the band limited functions). Finally, we study the properties of frames of translates that preserved by convolution.

Hodgkins lymphoma is a unique malignancy with unknown etiology .Curability and prognosis of Hodgkin,s disease (HD) depends on quickly early diagnosis .One of hypothesis proposed for the cause of this disease is Epstein- Barr virus infection and its activity in HD patients .

This case- control study was performed to determine the type and titers of antibodies against EBV capsid Antigens (Anti VCA IgM & IgG ) in HD patients as compared to the general population and its relation to age , sex , and subtype of Hodgkin. Thus, a fifty- person group of Hodgkin disease patients as the case group and a fifty – person group from the general population with the same age and sex characteristics as the control group were studied.

There was no significant difference for mean titer of IgM between two age ranges in each group of case and control. Also, there was statistically no significant difference between case and control groups ( P.Value=0.558 ).Most of the patients as well as non affected persons had negative IgM titers. Regarding IgG, there was statistically no significant difference between case and control groups for being either negative or positive, and most persons (92%) of each group and were positive for IgG, but mean titer of IgG was 2.87 mmol/lit in case group and 1.50 mmol/lit in control group , and this difference between two groups was statistically significant (Pvalue = 0.0001 ).

High titer of Anti-VCA IgG in Hodgkin disease patients compared to general population as seen in this study can explain over activity of EBV in Hodgkin's disease patients and the probable role of EBV in establishment and/or activity of the disease.