نتایج جستجو برای: l4
تعداد نتایج: 4911 فیلتر نتایج به سال:
Regulation of Human Adenovirus Alternative RNA Splicing by the Adenoviral L4-33K and L4-22K Proteins
Adenovirus makes extensive use of alternative RNA splicing to produce a complex set of spliced viral mRNAs. Studies aimed at characterizing the interactions between the virus and the host cell RNA splicing machinery have identified three viral proteins of special significance for the control of late viral gene expression: L4-33K, L4-22K, and E4-ORF4. L4-33K is a viral alternative RNA splicing f...
BACKGROUND AND OBJECTIVES An imaginary line connecting both iliac crests is used to determine the vertebral level for lumbar puncture. This line crosses the spine at the level of L4 or the L4-L5 space. This anatomical reference can be inaccurate in a large proportion of patients. The objective of the present study was to determine whether the identification of the L3-L4 space by the physical ex...
Glycogen synthase kinase-3 (GSK-3 ) is a key target and effector of downstream insulin signalling. Using comparative protein kinase assays and molecular docking studies we characterize the emodin-derivative 4-[N-2-(aminoethyl)-amino]-emodin (L4) as a sensitive and potent inhibitor of GSK-3 with peculiar features. Compound L4 shows a low cytotoxic potential compared to other GSK-3 inhibitors det...
Background and Objective: The injection site in spinal anesthesia is one of the factors that can affect the height of the sensory block. This clinical trial study aimed to compare the effect of spinal anesthesia at L3-L4 and L4-L5 on the level of sensory-motor block and hemodynamic status in cesarean section. Materials and Methods: Seventy patients undergoing elective cesarean section and rece...
Phytohemagglutinin isolectins L4 and E4 inhibit the growth and proliferation of cultured L1210 murine leukemia cells. L1210 cells were incubated with L4 or E4, and the metabolic and morphological characteristics of the cells were assessed. Dose-dependent inhibition of up to 90% occurs for [3H]thymidine and [14C]uridine incorporation. L4 is 30 to 50 times more potent an inhibitor than is E4. Inh...
BACKGROUND The purpose of this biomechanical in vitro study was to compare the kinematics and intradiscal pressure achieved with 2 methods: L4-L5 pedicle screw-rod fixation (PSRF) with an upper L3-L4 Coflex device and L4-L5 PSRF alone. The results were used to characterize the biomechanics of the topping-off operation with a Coflex device for the lumbar motion segment adjacent to single-level r...
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