What's the difference between complement and lack?

Complement


Definition:

  • (v. t.) That which fills up or completes; the quantity or number required to fill a thing or make it complete.
  • (v. t.) That which is required to supply a deficiency, or to complete a symmetrical whole.
  • (v. t.) Full quantity, number, or amount; a complete set; completeness.
  • (v. t.) A second quantity added to a given quantity to make it equal to a third given quantity.
  • (v. t.) Something added for ornamentation; an accessory.
  • (v. t.) The whole working force of a vessel.
  • (v. t.) The interval wanting to complete the octave; -- the fourth is the complement of the fifth, the sixth of the third.
  • (v. t.) A compliment.
  • (v. t.) To supply a lack; to supplement.
  • (v. t.) To compliment.

Example Sentences:

  • (1) We have cloned the phr gene that encodes DNA photolyase from Salmonella typhimurium by in vivo complementation of Escherichia coli phr gene defect.
  • (2) Patient plasma samples demonstrated evidence of marked complement activation, with 3-fold elevations of C3a desArg concentrations by the 8th day of therapy.
  • (3) Serum complement studies revealed decreased levels of C4, properdin, and C3.
  • (4) 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.
  • (5) Many speak about how yoga and surfing complement each other, both involving deep concentration, flexibility and balance.
  • (6) This linkage information was used to design complementation tests to determine allelism with previously characterized complementation groups affecting sensitivity to radiation.
  • (7) Most of the antibodies had some degree of complement-independent neutralizing capacity, but in common was a large neutralization-resistant fraction of virus (range 13 to 78%).
  • (8) Intercistronic complementation of these mutants with pm1493 and dl121, two SV40 mutants that are defective in agnoprotein but encode wild-type T antigen, results in an increased synthesis of agnoprotein in the infected cells.
  • (9) These studies show that complement activation can frequently be detected in the plasma of IgA nephropathy patients.
  • (10) Usually they are characterized by an increased level of complement components involved in the classical pathway and therefore reflect activation by antigen antibody complexes.
  • (11) Allelic complementation was not observed, despite testing of a large number of allele pairs, and alleles suppressible by the ochre suppressor SUP11 were absent from a sample of 48 spontaneous mutants and occurred infrequently (7%) among a sample of ultraviolet-induced mutants.
  • (12) Besides various skin tests with the antigens candida, trichophyton, mumps, streptokinase-streptodornase, tuberculin, DNCB and KLH also in vitro experiments measuring the immunoglobulin- and complement concentrations, the antibody production to KLH, the lymphocyte transformation rate to PHA, Pokeweed, Con A, PPD were done nearly in all patients.
  • (13) Skin allografts survived longer on ALS-treated, complement-deficient (C5 negative) recipients than on ALS-treated, complement-competent (C5 positive) recipients.
  • (14) These antibodies are usually characterized by the conventional platelet complement fixation test.
  • (15) This syndrome is consistently correlated with abnormally elevated serum IgG levels, antinuclear antibodies, anti ds- and ssDNA antibodies, and circulating immune complexes, as well as depressed serum hemolytic complement.
  • (16) This study was conducted using a standard complement-dependent microcytotoxicity assay.
  • (17) A plasmid carrying this mutation, along with wild-type genes encoding the c and b subunits, was unusual in that it failed to complement a chromosomal c-subunit mutation on succinate minimal medium.
  • (18) Viruses isolated from ticks (Ixodes uriae) from a seabird colony on the Isle of May, Scotland, were shown by complement fixation tests to be related to the Uukuniemi and Kemerovo serogroups.
  • (19) In the present study, the role of antiperipheral nerve myelin antibody (anti-PNM Ab) in demyelination by generating the terminal attack complex (C5b-9) of complement was explored in patients with Guillain-Barré syndrome (GBS) and other demyelinating neuropathies.
  • (20) The same marker was found in all metaphases from 2 different metastases, but skin fibroblasts from the same patient had a normal chromosome complement.

Lack


Definition:

  • (n.) Blame; cause of blame; fault; crime; offense.
  • (n.) Deficiency; want; need; destitution; failure; as, a lack of sufficient food.
  • (v. t.) To blame; to find fault with.
  • (v. t.) To be without or destitute of; to want; to need.
  • (v. i.) To be wanting; often, impersonally, with of, meaning, to be less than, short, not quite, etc.
  • (v. i.) To be in want.
  • (interj.) Exclamation of regret or surprise.

Example Sentences:

  • (1) Here we have asked whether protection from blood-borne antigens afforded by the blood-brain barrier is related to the lack of MHC expression.
  • (2) tRNA from mutant IB13 lacks 5-methylaminomethyl-2-thio-uridine in vivo due to a permanently nonfunctional methyltransferase.
  • (3) BL6 mouse melanoma cells lack detectable H-2Kb and had low levels of expression of H-2Db Ag.
  • (4) Treatment termination due to lack of efficacy or combined insufficient therapeutic response and toxicity proved to be influenced by the initial disease activity and by the rank order of prescription.
  • (5) In the past, the interpretation of the medical findings was hampered by a lack of knowledge of normal anatomy and genital flora in the nonabused prepubertal child.
  • (6) A diplomatic source said the killing appeared particularly unusual because of Farooq lack of recent political activity: "He was lying low in the past two years.
  • (7) The present study examined whether the lack of chronic hemodynamic effects of ANP in control rats was due to changes in vascular reactivity to the peptide.
  • (8) Since it was established, it has stoked controversy about contemporary art, though in recent years it has been more notable for its lack of sensationalism.
  • (9) Inadequate treatment, caused by a lack of drugs and poorly trained medical attendants, is also a major problem.
  • (10) Because of the small number of patients reported in the world literature and lack of controlled studies, the treatment of small cell carcinoma of the larynx remains controversial; this retrospective analysis suggests that combination chemotherapy plus radiation offers the best chance for cure.
  • (11) I would immediately look askance at anyone who lacks the last and possesses the first.
  • (12) The detection of these antibodies is difficult owing to the lack of standardization and of specificity of the laboratory tests.
  • (13) Core enzyme, lacking omega subunit, catalyzed this reaction at a rate less than 1% that of holoenzyme.
  • (14) But not only did it post a larger loss than expected, Amazon also projected 7% to 18% revenue growth over the busiest shopping period of the year, a far cry from the 20%-plus pace that had convinced investors to overlook its persistent lack of profit in the past.
  • (15) Urine specimens from patient REE also contained a light chain fragment that lacked the first (amino-terminal) 85 residues of the native light chain but otherwise was identical in sequence to the light chain REE.
  • (16) Thus the failure to raise anti-Id with internal image characteristics may provide an explanation for the lack of anti-gp120 activity reported in anti-Id antisera raised to multiple anti-CD4 antibodies.
  • (17) His walkout reportedly meant his fellow foreign affairs select committee members could not vote since they lacked a quorum.
  • (18) In South Africa, health risks associated with exposure to toxic waste sites need to be viewed in the context of current community health concerns, competing causes of disease and ill-health, and the relative lack of knowledge about environmental contamination and associated health effects.
  • (19) The functional capacity to present antigens to T cells was lacking in normal resting B cells, but was acquired following LK treatment.
  • (20) These findings indicate an association between HLA-B7 and ankylosing spondylitis in American blacks and suggest that these patients who lack B27 but possess B7 represent a subgroup of patients with this disease.