(v. t.) To annul by an authoritative act; to abolish by the authority of the maker or his successor; to repeal; -- applied to the repeal of laws, decrees, ordinances, the abolition of customs, etc.
(v. t.) To put an end to; to do away with.
Example Sentences:
(1) Although Jeggo's Chinese hamster ovary cells were more responsive to mAMSA, novo still abrogated mAMSA toxicity in the mutant cells as well as in the parental Chinese hamster ovary cells 2,4-Dinitrophenol acted similarly to novo with respect to mAMSA killing, but neither compound reduced the ATP content of V79 cells.
(2) LPS also abrogated the ability of recombinant interferon-gamma (r.IFN-gamma) to enhance macrophage larvicidal activity.
(3) Release of 51Cr was apparently a function of immune thymus-derived lymphocytes (T cells) because it was abrogated by prior incubation of spleen cells with anti-thymus antiserum and complement but was undiminished by passage of spleen cells through nylon-wool columns.
(4) In contrast, insertion of a pre-S(1) sequence between HBcAg residues 75 and 83 abrogated recognition of HBcAg by 5 of 6 anti-HBc monoclonal antibodies and diminished recognition by human polyclonal anti-HBc.
(5) Furthermore, exogenous IL-1, IL-2, IL-4, interferon-gamma, or a rat Con A supernatant failed to abrogate DFMO inhibition.
(6) A T cell was responsible for the suppressive effects on LAK generation because suppression was abrogated by treatment of alloimmune cells with anti-T serum plus complement.
(7) Inhibitors of DC clustering, including trypsin, paraformaldehyde, and tunicamycin, abrogated the ability of DC to support antigen presentation and lectin-mediated proliferation.
(8) Bound fluorescyl ligand, increased ionic strength (0.5 M NaCl) or basic pH (greater than 8.0) abrogated cryoprecipitation.
(9) One of the renal antigens recognized by 2B4.14.1 was identified as Tamm-Horsfall glycoprotein (THGP), based on the ability of the antibody to recognize THGP in western immunoblots and the abrogation of immunohistologic reactivity of the antibody by preincubation with purified THGP.
(10) Furthermore, treatment of AC with lysosomotropic agents abrogated thymocyte proliferation induced by PE but not SEB.
(11) Pretreatment with OKT3, together with a monoclonal anti-DR antibody and complement, did not abrogate the T-colony forming capacity.
(12) Resistance of the rat induced by C. liquefaciens to tumor cells was also abrogated by Trypan Blue treatment just 1 day before tumor cell inoculation.
(13) Serum SIRS-inducing activity was abrogated by treatment with proteinase K or boiling, but was not affected by dialysis, acidification to pH 2, or heating to 56 degrees C. This serum factor could be distinguished functionally and antigenically from SIRS and from interferon (IFN) alpha or IFN gamma.
(14) It is shown that while not affecting other mononuclear cells viability, this IT is capable of selectively destroying human monocytes after 24 h exposure thus resulting in the abrogation of monocyte support for PHA reactivity in mononuclear cell preparations.
(15) Tetrodotoxin or nifedipine abrogated the effects of IC, C-Ch and PE but did not influence the effect of gamma-interferon on C2 synthesis.
(16) Preincubation of rIL-1 with a specific antibody abrogated and heat-inactivation destroyed this activity.
(17) This IFN-gamma-mediated suppression was monocyte dependent because it was completely abrogated by monocyte, but not T cell depletion.
(18) In contrast, these responses were both abrogated by hyperpolarization with the K+ ionophore valinomycin.
(19) Dilution of the latter detergent lysate with phosphate buffered saline exhibited no effect on the detection of the two additional components, while further treatment of the lysate with NP-40 buffer abrogated them to be detected.
(20) Release was abrogated by omission of myeloperoxidase or H2O2, heating of MPO, or addition of azide, cyanide, or catalase.
Retract
Definition:
(v. t.) To draw back; to draw up or shorten; as, the cat can retract its claws; to retract a muscle.
(v. t.) To withdraw; to recall; to disavow; to recant; to take back; as, to retract an accusation or an assertion.
(v. t.) To take back,, as a grant or favor previously bestowed; to revoke.
(v. i.) To draw back; to draw up; as, muscles retract after amputation.
(v. i.) To take back what has been said; to withdraw a concession or a declaration.
(n.) The pricking of a horse's foot in nailing on a shoe.
Example Sentences:
(1) Brain damage may be followed by a number of dynamic events including reactive synaptogenesis, rerouting of axons to unusual locations and altered axon retraction processes.
(2) Tottenham Hotspur’s £400m redevelopment of White Hart Lane could include a retractable grass pitch as the club explores the possibility of hosting a new NFL franchise.
(3) Any MP who claims this is not statutory regulation is a liar, and should be forced to retract and apologise, or face a million pound fine.
(4) During the first 15 to 20 min of metamorphosis the larval arms are retracted and resorbed into the aboral surface of the juvenile.
(5) • Written, oral and video statements of self-incrimination and self-renunciation by the detainees, apparently induced by the authorities, have been released through official media channels (for example, lawyer Zhang Kai was induced to make such a statement, which he later retracted).
(6) Duane's retraction syndrome is a congenital eye movement disorder characterized by a deficiency of abduction, mild limitation of adduction, with retraction and narrowing of the palpebral fissure on attempted adduction.
(7) Axonal trees display differential growth during development or regeneration; that is, some branches stop growing and often retract while other branches continue to grow and form stable synaptic connections.
(8) She said she was not worried by Rubio’s one-time position on his immigration bill, later retracted, that he could not support reform if it included citizenship for gay couples.
(9) Useful differential morphological criteria can be: star-like or transverse ring-shaped profile of isolated ulcerations, tubular ileocolic junction with retracted cecum and open valve, and uniformity of lesion in the comprehensive picture of the clinical case.
(10) Both require more brain retraction and have greater risk to the facial nerve than the translabyrinthine approach.
(11) Unlike posterior tympanoplasty, this technique makes it possible to meticulously remove the osteitic bone invariably found in the facial recess when there is infection of the retraction pocket.
(12) In the third patient laparotomy was applied owing to the bleeding from the retracted, cut uterine artery.
(13) Because of laboratory and clinical observation that recurrent nerve paralysis retracts the involved vocal cord from the midline, it was proposed that deliberate section of the recurrent nerve would improve the vocal quality of patients with spastic dysphonia.
(14) Seven to 30 days following axotomy the volume of the hypoglossal nucleus was significantly diminished, undoubtedly reflecting dendritic retraction (P less than 0.05).
(15) Contacts resulting in collapse and retraction were often accompanied by a rapid and transient burst of lamellipodial activity along the neurite 30-50 microns proximal to the retracting growth cone.
(16) At three, six, and twelve months after the first operation the development of retraction pockets was also studied.
(17) The anchoring wire can also be retracted and repositioned.
(18) The right occipital lobe is retracted laterally from the falx cerebri.
(19) These experiments demonstrated that accessory abducens is a primary controller of eye retraction through its axons to retractor bulbi.
(20) A commercial system for producing retracted compensators has been adapted to suit local needs, and is evaluated here.