Time course of bioelectrical activity of retina in patients with pigmented abiotrophy treated by deoxinate]

Bioelectrical retinal activity was assessed before and after a course of deoxinate therapy and in a blind placebo test in order to assess the efficacy of this new drug in the treatment of patients with pigmented retinal abiotrophy. Time course of electroretinograms during deoxinate therapy indicated a significant positive effect of the drug on retinal function as regards a variety of electrophysiological parameters in 80-94% patients. Improvement of electroretinography data was paralleled by improvement of visual acuity, extension of visual fields, and decrease of scotomas. Good effect was attained in patients with early and far advanced stages of pigmented retinal abiotrophy. Analysis of bioelectrical activity of the retina after a course of therapy with deoxinate and enkad showed a higher efficacy of the former drug in patients with pigmented retinal abiotrophy.     

Mobilization of peripheral blood cells for auto- and allogenic transplantations of hemopoietic cells

AIM: To study mobilisation of peripheral blood stem cells (PBSC) via single and split subcutaneous injection of granulocytic colony-stimulating factor (G-CSF) and isolation of PBSC concentrates for their transplantation with leukapheresis (LA) and large volume leukapheresis (LVL) in patients with solid tumors and hematological diseases as well as in the group of relative donors. MATERIAL AND METHODS: LA procedures were made on cell blood fractionator COBE Spectra. In groups 1 and 2 LVL was made with apparatus perfusion of circulating blood of the patient or donor (15-33 l) vs 7-12 l in LA by standard technique in group 3. To reduce the volume of sodium citrate solution used in LVL, to prevent citrate intoxication and hypervolemia, a sharp rise of anticoagulant/blood ration was applied. RESULTS: PBSC-mobilisation with split doses of G-CSF and large volume leukapheresis in 23 patients and 11 relative donors vs mobilisation in 26 patients with single-daily dose of G-CSF and leukapheresis of 3 TBV has revealed that split administration of G-CSF increased the number of leukocytes and CD34+ cells more considerably. CONCLUSION: LVL provides PBSC dose sufficient for transplantation during one procedure in the majority of donors and relative donors. This makes the method more comfortable and cost-effective.