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Transforaminal steroid injections for the treatment of cervical radiculopathy: a prospective and randomised study.

Steroid injections are often employed as an alternative treatment for radicular pain in patients with degenerative spinal disorders. Prospective randomised studies of the lumbar spine reveal contradictory results and non-randomised and most often retrospective studies of the cervical spine indicate pain reduction from steroid injections. No prospective randomised study on transforaminal steroid in

The excited-state chemistry of protochlorophyllide a: A time-resolved fluorescence study

The excited-state processes of protochlorophyllide a, the precursor of chlorophyll a in chlorophyll biosynthesis, are studied using picosecond time-resolved fluorescence spectroscopy. Following excitation into the Soret band, two distinct fluorescence components, with emission maxima at 640 and 647 nm, ore observed. The 640 nm emitting component appears within the time resolution of the experiment

The MAP kinases are differently utilized by CD28 and CD2 adhesion pathways in superantigen-activated Jurkat T cells

To mimic the two-signal requirements for T cell activation mediated by ligands, we exposed the superantigens SEA or SEE (signal 1) to T cells incubated with HLA-DR/LFA-3 or HLA-DR/137-1-CHO transfected cells (signal 2). LFA-3 costimulation was able to induce T cell proliferation as well as IFN-gamma and IL-4 production at similar levels as in cells induced by B7-1. Analysis of the CD28RE of the IL