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BACKGROUND Neuraxial application of dexmedetomidine (DEX) as adjuvant analgesic has been invetigated in some randomized controlled trials (RCTs) but not been approved because of the inconsistency of efficacy and safety in these RCTs. We performed this meta-analysis to access the efficacy and safety of neuraxial DEX as local anaesthetic (LA) adjuvant. (More)
The beta-lactamase was used as the reporter of expression and transmembrane secretion in this paper. A fragment of Amp resistance gene encoding the mature part of beta-lactamase (delta P delta SP Amp, i.e. without promoter and signal peptide coding sequences) was amplified from pUC18 vector. The upstream primer has BglII, BclI, BamHI in three reading frame(More)
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