What's the difference between tac and talc?

Tac


Definition:

  • (n.) A kind of customary payment by a tenant; -- a word used in old records.

Example Sentences:

  • (1) In 6 cases of T cell lymphoma, 5 cases were positive for T3+ and Tac+ each; 4 for T11+ and 2 for T6+ while all were positive for T4 and negative or weakly positive for T8A.
  • (2) The tetracaine component of TAC is superfluous for obtaining topical anesthesia of minor dermal lacerations of the face in children.
  • (3) The response of Tac rosette positive cells to recombinant IL-2 was always higher than that of the Tac rosette negative or unselected cells, indicating that this rosette method specifically selects T cells expressing IL-2 receptor.
  • (4) The role of interleukin 2 (IL-2) in the activation of suppressor T cells was investigated by using the monoclonal antibody anti-Tac, which blocks the binding of IL-2 to the 55-kDa peptide of the high-affinity IL-2 receptor.
  • (5) The IL 2 receptor on T4+ T-CLL cells was indistinguishable from that on normal activated T cells with respect to molecular weight and downregulation by the anti-Tac antibody.
  • (6) The capacity for T cell proliferation and the expression of Tac antigen (IL-2 receptor) was assessed during the post-burn period in patients with injuries ranging from 5-68% total body surface area.
  • (7) Comparison with the respective wild-type nucleotide sequence shows only one nucleotide change, G----A, causing a replacement of cysteine-58 (TGC) with tyrosine (TAC) in the E3 protein of ts1.
  • (8) A procedure is described for the phagocytic labeling of white blood cells (WBC) with high specific activity 99mTc--albumin colloid (TAC).
  • (9) Both the neuA and neuC genes are coexpressed under the control of a single upstream T7 or tac promoter, suggesting that neuA and neuC are part of an operon.
  • (10) The addition of anti-Tac during a preculture period inhibited the generation of Epstein-Barr virus (EBV)-induced suppressor T cells and of suppressor T cells induced in an antigen-specific system by a high antigen (sheep red blood cell) concentration.
  • (11) In contrast to wild-type IL-2R alpha, shedding of mutant Tac protein is strongly reduced.
  • (12) The complete transcriptional unit, incorporating the tac promoter and rrnB transcription terminators flanking the Pf1 coat protein gene, was excised from the expression plasmid and cloned into the intergenic space of bacteriophage R252, an fd bacteriophage that carries an amber mutation in its own major coat protein gene.
  • (13) The time course of expression of other known activation antigens, such as Tac and transferrin receptor, was comparable to that of CK226.
  • (14) In previous work, our laboratory has molecularly cloned the cDNA coding for the bovine IL-2 and IL-2R (p55, Tac) proteins.
  • (15) The degree of inhibition of protein synthesis, however, was not closely correlated with expression of CD25 antigen (low-affinity Mr 55,000 glycoprotein, IL-2R, Tac antigen) on ATL cells.
  • (16) Unlike other reported cases of Thp-CLL, fresh leukemic cells from this patient were positive with the anti-Tac monoclonal antibody, which recognizes the receptor for interleukin-2 (IL-2).
  • (17) SF CD4+ cells from RA and non-RA arthritides expressed the Tac antigen much more frequently than corresponding CD8+ cells (54 and 58% versus 16 and 17%).
  • (18) A Tn5tac1 insertion just inside the 3' end of cysQ, with its isopropyl-beta-D-thiogalactopyranoside-inducible tac promoter pointed toward the cysQ promoter, resulted in auxotrophy only when isopropyl-beta-D-thiogalactopyranoside was present; this conditional phenotype was ascribed to collision between converging RNA polymerases or interaction between complementary antisense and cysQ mRNAs.
  • (19) In addition, a monoclonal antibody (moAb) against the IL2 receptor (IL2-R; anti-Tac) inhibited the spontaneous colony formation from T-CFC of both groups of patients.
  • (20) The artificial secretory molecule of the IL-2 receptor named "bottom-less" receptor was able to react with anti-Tac antibody and to bind IL-2.

Talc


Definition:

  • (n.) A soft mineral of a soapy feel and a greenish, whitish, or grayish color, usually occurring in foliated masses. It is hydrous silicate of magnesia. Steatite, or soapstone, is a compact granular variety.

Example Sentences:

  • (1) Instillation of a talc suspension with thoracostomy drainage is also a safe and effective technique and should be employed when tetracycline fails or is contraindicated.
  • (2) It does, however, support other work, such as an analysis in 2003 combining data from 16 studies, which found a 30% increase in ovarian cancer among talc users .
  • (3) Microscopic examination showed talc granulomas and arteritis.
  • (4) Four distinct forms of pulmonary disease caused by talc have been defined.
  • (5) Cancer incidence and cause-specific mortality were studied in a male cohort of 94 talc miners and 295 talc millers, exposed to non-asbestiform talc with low quartz content.
  • (6) This prospective study was designed to determine the efficacy of iodized talc pleurodesis in patients with pleural effusions.
  • (7) Lateral thoracotomy with pleural abrasion and application of talc was performed on 8 adult beagle dogs.
  • (8) At 5 weeks, dynamic transpulmonary and transrespiratory compliance were less in the TALC lungs when compared with CONTROL lungs.
  • (9) We conclude that the decrease in bone formation constitutes an important aspect of the host acute-phase response in a rat model of talc granulomatosis.
  • (10) Better estimates of exposure-dose relationships in talc and granite workers as well as longer-term animal studies are required to evaluate the harmfulness of these work environments at present-day exposure levels.
  • (11) Bone loss in talc granulomatosis is paralleled by hyperplasia of bone marrow in the rat.
  • (12) Talc (magnesium silicate) is a widely used, generally considered benign substance.
  • (13) Silica is a component of talc (magnesium silicate) used as a drug filler.
  • (14) Talcs under the Food and Drug Administration are not regulated as to asbestos content; however, all talcs were well below the level mandated by the Occupational Safety and Health Administration for industrial talcs.
  • (15) The etiology and possible role of systemic talc granulomatosis in the development of immunosuppressive illness is reported herein.
  • (16) Binding to talc on the other hand showed no specificity, and the sensitivity was less.
  • (17) 2) If the board and adjacent ones are firmly fixed, dust talc or chalk through the cracks to stop them rubbing together.
  • (18) We have examined workers exposed to curing fumes, processing dusts, and industrial talc and have begun to evaluate exposures of these workers in detail.
  • (19) The authors review the literature concerned with the carcinogenic hazards of a long term exposure to talc.
  • (20) The radioisotopes 46Sc, 60Co, 59Fe and 51Cr in the activated talc served as tracers.

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