(n.) Something appended to, or accompanying, a principal or greater thing, though not necessary to it, as a portico to a house.
(n.) A subordinate or subsidiary part or organ; an external organ or limb, esp. of the articulates.
Example Sentences:
(1) The astrocytes had generally two types of processes: (1) thread-like processes of relatively constant width with few ramifications and few lamellar appendages and (2) the sinuous processes with clusters of lamellar appendages.
(2) After completion of the biopsy, a J-shaped 5F bipolar pacing lead was inserted via the sheath and positioned with the lead tip directed medially against the interatrial septum or right atrial appendage.
(3) The purpose of this study is to determine the sensitivity and specificity of two dimensional echocardiography in the diagnosis of thrombosis of the left atrial appendage.
(4) Thus careful examination of standard ECG leads for paced P waves of low amplitude, prolonged duration and specific morphology can help in confirming atrial capture following pacing stimulus from right atrial appendage.
(5) The results indicate that position along the appendage does not influence the developmental sequence of events of regeneration, but that it does influence the rate of growth and the structures to be replaced.
(6) The appendages were about 125 x 30 A; the central ring had an outer diameter of approximately 100 A and an inner diameter of 40 A.
(7) In this last region, we can find a more or less reduced true tail or a terminal appendage without vertebral element.
(8) Before therapy considerable destructive changes in nerve fibers were seen, i. e. Schwann cell cytoplasm and nerve cell appendages edemas, no neural tubes in the appendages.
(9) Of 70 children scrotal explorations, torsion of appendages was found in 33 cases (47%).
(10) Synaptic contacts (GRAY I) are established with the grape-like appendages in the branching zone of P-neuron dendrites.
(11) Of the 84 adolescent scrotal explorations performed, 72 (86%) had torsion of testis, and 8 (9%) had torsion of appendages.
(12) Electron microscopy reveals that Toh+ amacrine cells are postsynaptic to amacrine cells and a few bipolar cell terminals in stratum 1 of the inner plexiform layer and are primarily presynaptic to AII amacrine cell bodies and lobular appendages, and to another type of amacrine cell body and amacrine dendrites hypothesized to be the A17 amacrine cell.
(13) A practical classification of left atrial calcification is proposed according to the dominant lesion in each group: (a) Calcification of the left atrial appendage alone (Mitral stenosis).
(14) The innervation and myocardial cells of the human atrial appendage were investigated by means of immunocytochemical and ultrastructural techniques using both tissue sections and whole mount preparations.
(15) Many HBox genes sustain their expression in the appendages of the adult newt.
(16) Wounds made at intervals from 2-24 weeks after irradiation in normal or irradiated ileum were repaired immediately and wrapped in normal or irradiated appendages.
(17) A course of treatment resulted in clinical improvement and appearance of small-diameter appendages of nerve cells on the periphery of nerve fibers that were often not completely covered with Schwann cell appendages.
(18) Among the relay cells, these differences relate to soma and axon diameter, dendritic orientation, and the presence or absence of grapelike dendritic appendages.
(19) When taken together these cases show that just over 50% of the degenerating terminals are presynaptic to spiny appendages and are located within the synaptic clusters (glomeruli) described previously (King, '76).
(20) Surgical techniques used (alone or in combination) included an isolation procedure in 1 patient, cryoablation in 4 patients, and excision of atrial appendages or portions of atrial free walls in 7.
Pilus
Definition:
Example Sentences:
(1) Ultrastructural studies of Aeromonas hydrophila strain AH26 revealed two distinctive pilus types: "straight" pili appear as brittle, rod-like filaments, whereas "flexible" pili are supple and curvilinear.
(2) Phagocytic killing in the presence of each monoclonal antibody paralleled the increase in chemiluminescence, suggesting that for this variant killing was an inevitable consequence of the interaction of polymorphonuclear leukocytes with gonococci opsonized with anti-pilus antibodies.
(3) These results show for the first time the role of a specific pilus structure in colonization of the human intestine by V. cholerae O1 and exemplify the significance of a genetic regulon in pathogenesis.
(4) The relative affinity of these peptides for anti-EDP208 pilus antibodies was determined by a competitive enzyme-linked immunosorbent assay using the Fab fragment of anti-EDP208 pilus immunoglobulin G. From these results we established that the antigenic region of this peptide was the N-terminal pentapeptide, N-acetyl-Thr-Asp-Leu-Leu-Ala, and the key residues responsible for the antibody-antigen interaction are the N-acetyl-Thr1, Leu3, and Leu4.
(5) The antigenic surface-associated colonization factor of E. coli strain H-10407 has been further characterized: this pilus-like antigen is produced under conditions of growth that repress the production of common pili of E. coli.
(6) The degree of S-pilin processing and the levels of membrane-associated pilin varied among the different classes of mutants, suggesting that each was blocked at a distinct step of pilus biogenesis.
(7) At the basis of each pilus, a cell wall differentiation was observed appearing, in face-on-view, as a ring-like structure made up of subunits, and in side-on view as a hollow cylinder penetrating through the cell wall.
(8) Using Western blot analysis of the immunizing pilus and its cyanogen bromide (CNBr) fragments, IgG antibody to pilin was detected before immunization in all individuals.
(9) K99+, 987P+, and type 1 pilus+ bacteria could be prevented from adhering to epithelial cells by Fab fragments specific for K99, 987P, or type 1 pili, respectively.
(10) One recombinant pilus was shown to elicit antibodies against the synthetic peptide in immunized rats.
(11) A purified Gal-Gal pilus vaccine prevented (P less than 0.05) subsequent colonization by a challenge wild-type strain that exhibited homologous pili.
(12) These results showed that trbC function is essential to the F plasmid conjugative transfer system and suggested that the TrbC protein participates in F-pilus assembly.
(13) These observations may indicate a possible evolutionary relationship(s) of plasmids unrelated by the criteria of incompatibility, pilus phage specificity, or plasmid host range.
(14) The presence of an invertible element (Min) is suggested which enables the formation of conjugative pili at 30 degrees C, but switches off the pilus formation at 37 degrees C incubation temperature.
(15) Three classes of pili, alpha, beta and gamma of ascending sub-unit size were identified among the 7 pilus antigen serogroups.
(16) A high titre of pilus antibodies was obtained by immunizing rabbits with mutants whose pili had lost their ability to retract into the cell.
(17) Earlier studies have shown that the majority of Escherichia coli isolates from urinary tract infections which possess a D-mannose-resistant adhesin contain gene sequences homologous to the pap pilus gene sequences encoded on the recombinant plasmid pRHU845.
(18) Like R100, R62 prevented transfer, pilus formation, and surface exclusion and, therefore, probably inhibits expression of the transfer operon traA through traI.
(19) The pilS1 locus contains six tandem pilus gene copies linked by a 39 bp repeat sequence also present in the expression loci.
(20) This mutant no longer produced a 20.5-kDa protein (TcpA) that we show is the major subunit of a V. cholerae pilus.