(a.) Pertaining to, or derived from, antimony; -- said of those compounds of antimony in which this element has its highest equivalence; as, antimonic acid.
Example Sentences:
(1) Precipitates of calcium antimonate were formed almost exclusively in swollen clear pinealocytes, in and along their cell membranes, over their nuclei, in mitochondria, the Golgi apparatus, endoplasmic and integrade reticulums, acervuli, in vesicles surrounding synaptic bars, cytoplasmic matrix, and flocculent extracellular material.
(2) The operon was found to have two functional regions, the promoter-proximal region encoding resistance to arsenite and antimonate and the promoter-distal region encoding arsenate resistance.
(3) The addition of oxalate to a suspension of rabbit peritoneal neutrophils before fixation with glutaraldehyde and postfixation with osmium tetroxide-antimonate greatly enhanced the amount of calcium antimonate precipitate subsequently detectable with the electron microscope.
(4) The resistance pattern included arsenate, arsenite, and antimonate ions.
(5) Results from in vitro titrations of cations with the various antimonate methods and from neutron activation analyses of fixed tissues supported conclusions drawn from fine structural distribution patterns and were interpreted as follows.
(6) During meiotic prophase an accumulation of cation-antimonate precipitates occurs dispersed through the middle pachytene nuclei, the stage in which RNA synthesis reaches a maximum.
(7) This produces a more copious precipitate of calcium antimonate than fixation without oxalate.
(8) The preparations were exposed to acetylcholine (ACh 1X10(-6) M), rapidly fixed at various functional states with 1% osmium tetroxide in 2% potassium antimonate and inspected with electron microscope.
(9) It is suggested that although matrix vesicles contain few calcium capable of reacting to antimonate immediately after their biogenesis, subsequently, large amounts of calcium are accumulated associated with the outer surface membrane of matrix vesicles in the extracellular matrix.
(10) Deposits were reduced at all sites following exposure of eggs to EGTA either prior to or after osmium-antimonate fixation.
(11) Cytochemical localization of Ca2+ in Meissner corpuscles and Merkel cell-neurite complexes in the palatine mucosa of the Mongolian gerbil was studied by a combined oxalate antimonate-microwave irradiation procedure.
(12) Potassium antimonate was used to precipitate calcium in the cochlea of the guinea-pig.
(13) When permeabilized mast cells were exposed to potassium antimonate solution, microtubules attached themselves to the endoplasmic reticulum and many Ca antimonate dots were observed.
(14) Treatment with intramuscular injections of meglumine antimonate (Glucantime) was successful.
(15) These findings suggest that some of the calcium released from cellular stores during fixation with glutaraldehyde is trapped within the neutrophil by oxalate which then reacts with potassium antimonate.
(16) Modifications of the Komnick potassium (pyro)antimonate precipitation method have been widely used for the subcellular localization of a variety of cations.
(17) The localization of pyro-antimonate-precipitable Ca2+ in the undecalcified femur and calvaria of neonatal rats was examined.
(18) Calcium-containing antimonate precipitates were localized principally in nuclei, smooth endoplasmic reticulum, Golgi apparatus, mitochondria, and cytoplasmic processes of both oocytes and follicle cells, and along the plasma membrane in small oocytes.
(19) The strong reaction of neutrophil primary granules with antimonate and dialyzed iron afforded differentiation from unreactive monocyte-macrophage granules and thus distinguished these cell types in culture.
(20) At other stages (zygotene to diplotene), where RNA synthesis falls to a low level, that pattern is not seen; cation-antimonate deposits are restricted to a few masses in areas apparently free of chromatin.
Antimony
Definition:
(n.) An elementary substance, resembling a metal in its appearance and physical properties, but in its chemical relations belonging to the class of nonmetallic substances. Atomic weight, 120. Symbol, Sb.
Example Sentences:
(1) By means of rapid planar Hill type antimony-bismuth thermophiles the initial heat liberated by papillary muscles was measured synchronously with developed tension for control (C), pressure-overload (GOP), and hypothyrotic (PTU) rat myocardium (chronic experiments) and after application of 10(-6) M isoproterenol or 200 10(-6) M UDCG-115.
(2) This area was selected for study because of its large mineral deposits and concentration of elements, e.g., iron, copper, silver, antimony, and particularly mercury.
(3) The inhibition of osmotic stimulated water flow in the isolated toad bladder by 0.1 mM sodium stibogluconate (pentavalent antimony) is described.
(4) The antimony in metallic kitchen ware was determined.
(5) Although previously published animal data suggest utility of Tc-99m stannous phytate for lymph-node imaging, Tc-99m antimony sulfide was shown in this clinical comparison to provide a more reliable representation of lymph-node anatomy.
(6) Rather surprising were the contents of mercury, indium, and cadmium found in some of the alloys as well as the low-level concentration of lead, and in a few cases antimony.
(7) Organic antimonials were most active when anmastigotes were exposed to them prior to entry of the parasites into host cells.
(8) Ureastibamine, a pentavalent antimonial, reduced the parasitic load in the 60-day model of infection of L. donovani in hamsters.
(9) As dosage regimens for treating leishmaniasis have evolved, the daily dose of antimony and the duration of therapy have been progressively increased to combat unresponsiveness to therapy.
(10) To obtain the usual values of arsenic, beryllium, bismuth, cadmium, chromium, cobalt, copper, mercury, methyl mercury, manganese, molybdenum, nickel, lead, antimony, vanadium, and zinc in the normal human body, the amounts of 15 metals were determined in 15 male and 15 female Japanese cadavers (average weight, 55 kg [121 lb]).
(11) It is an effective alternative to antimony therapy, and in some cases resistant to antimony, it may be the drug of choice.
(12) Solid state memories are preferred, glass or antimony electrodes may be used and the data analysis should be performed on an ordinary personal computer.
(13) There is only a few hundred ohms resistance between an antimony pH electrode and the reference electrode so that the voltage generated can be recorded with simple low-impedance recorders linked to microcomputers.
(14) A series of 31 patients presenting with skin lesions with positive smears for leishmania parasites were treated with sodium stibogluconate (each ml of injection containing the equivalent of 100 mg pentavalent antimony).
(15) FEV1 was recorded at regular intervals during the hour of provocation, and acid reflux (pH less than 4) was monitored by antimony pH electrodes in the esophagus.
(16) This difference could be corrected by a modified calibration, using the external skin reference electrode of the antimony electrode (finger calibration).
(17) When healed lesions of 14 of these subjects were re-biopsied 1 to 12 months after the end of pentavalent antimonial therapy, MHC class II antigens could no longer be seen on keratinocytes.
(18) Dogs naturally infected with Leishmania infantum Nicolle were treated with three courses of meglumine antimoniate.
(19) Lines expressing lmpgpA showed resistance to arsenite and trivalent antimonials, but not to pentavalent antimonials, zinc, cadmium, or the typical multidrug-resistant P-glycoprotein substrates vinblastine and puromycin.
(20) Therefore data recorded with antimony electrodes cannot be compared with those recorded with glass electrodes.