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A mutation of Drosophila, slowpoke (slo), specifically abolishes a Ca2+-dependent K+ current, IC, from dorsal longitudinal flight muscles of adult flies. Other K+ currents remain normal, providing evidence that IC is mediated by a molecularly distinguishable set of channels. The pharmacological properties of IC are similar to those of Ca2+-dependent(More)
Fasciclin I is a membrane-associated glycoprotein that is regionally expressed on a subset of fasciculating axons during neuronal development in insects; it is expressed on apposing cell surfaces, suggesting a role in specific cell adhesion. In this paper we show that Drosophila fasciclin I is a novel homophilic cell adhesion molecule. When the nonadhesive(More)
The roles of different K+ currents in regulating the generation and waveform of action potentials in Drosophila dorsal longitudinal flight muscles (DLMs) were examined in current-clamp experiments. In response to depolarizing current, DLMs displayed an initial transient rectification of the electronic potential lasting for up to hundreds of milliseconds.(More)
To study electrogenic conduction in neurons of the cervical giant nerve fiber (CGF) pathway in Drosophila adults carrying temperature-sensitive paralytic mutations that affect sodium channels, we recorded dorsal longitudinal muscle (DLM) responses evoked by electrical stimulation of the brain. In the mutants tipE, napts and parats, conduction in certain(More)
Drosophila fasciclin I is a homophilic cell adhesion molecule expressed in the developing embryo on the surface of a subset of fasciculating CNS axons, all PNS axons, and some nonneuronal cells. We have identified protein-null mutations in the fasciclin I (fas I) gene, and show that these mutants are viable and do not display gross defects in nervous system(More)
The aim of the study was to investigate the histology of the sacrospinous ligament to determine whether nerve fibers exist within the substance of the sacropinous ligament itself. Six sacrospinous ligaments were removed from 4 fixed female cadavers. Representative segments were taken from the lateral (ischial), middle and medial (sacral) portions of these(More)
Transvaginal sacrospinous colpopexy is currently used to repair varying degrees of vaginal vault prolapse. It involves placing a stitch from the vaginal cuff to the sacrospinous ligament approximately 2 cm medial to the ischial spine to correct the defect. This may be associated with pudendal artery and nerve (pudendal complex) along with sciatic nerve(More)
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