(n.) A nonmetallic element, of the halogen group, occurring always in combination, as in the iodides. When isolated it is in the form of dark gray metallic scales, resembling plumbago, soft but brittle, and emitting a chlorinelike odor. Symbol I. Atomic weight 126.5. If heated, iodine volatilizes in beautiful violet vapors.
Example Sentences:
(1) Conversely, Tyr-52 and Tyr-147 were iodinated only in the dimer.
(2) The results indicated that roughly 25% of patients treated in this way will become hypothyroid after 5 years and that 85% are cured (need no further therapy during the follow-up period) using a single dose of iodine-131.
(3) Subunits maintained under the above ionic conditions were compared with 30S and 50S particles at low (6 mM) magnesium concentration with respect to the reactivity of individual ribosomal proteins to lactoperoxidase-catalyzed iodination.
(4) In conclusion, autoimmune thyroiditis in an animal model can be prevented by reducing thyroidal iodine or its metabolism and optimal effects require intervention at the embryonic stage.
(5) CCK-8 was acylated with the iodinated aryl azide derivatives, methyl-3-azido-4-hydroxy-5-[125I]iodobenzimidate and N-[4-(4'-azido-3'-[125I]iodophenylazo)benzoyl]-3-aminopropionyl-N- oxy- succinimide.
(6) Labeling experiments with fucose and glucosamine show that at least nine of the iodinated peptides may be glycoproteins.
(7) The first one is a region with iodine insufficiency; the second one is a region where the people use table salt in excess.
(8) Superoxide dismutase (SOD) activity and its concentration were measured in thyroid tissues obtained from patients with Graves' disease, Hashimoto's thyroiditis, differentiated thyroid cancer, and endemic goiter (before and after iodine supplementation) as well as in normal thyroid tissue (paranodular tissue) from patients with follicular adenomas.
(9) A decrease in neutrophil oxidative metabolism and iodination was observed, but there was no effect on neutrophil random migration or ADCC.
(10) The preparation and utilization of iodinated glycopeptides for sequence analysis is presented.
(11) Two hundred fifty-one cervical and 209 male urethral specimens from three Richmond health clinics were read by direct immunofluorescence staining and compared with cell culture technics using iodine staining.
(12) In all iodine-deficient regions such as the GDR, a frequent occurrence of thyroid autonomy with manifestation of hyperthyroidism following iodine contamination has to be taken into account.
(13) After a resuscitation period of 4 h, the medium was made selective by addition of either sodium thiosulfate, bile salts and iodine, or sodium selenite and L-cystine.
(14) the does had been grazing on lucerne from the time of mating and received a free-choice lick, which included iodine.
(15) It was revealed that the TTH level could change both in the direction of decrease and of elevation; the inorganic phase of the iodine metabolism was reduced and the organic one--elevated.
(16) There was a significant inverse correlation between the TcTU values and the urinary iodine excretion in the groups of normal thyroids and of goitres with euthyroidism.
(17) Marked resistance to lung damage by toxic thioureas could be induced in older, mature rats by pretreatment with the toxic agent itself (tachyphylaxis), with other toxic and non-toxic antithyroid drugs or with iodine or iodide--even if the rats were pretreated at an early age before susceptibility to the agent developed.
(18) This study analyzed the impact of prognostic variables of age, sex, histopathological diagnosis, extent of disease at diagnosis, and surgical intervention on well differentiated thyroid carcinoma and how surgical treatment, radioactive iodine, and radiotherapy influence the patients' outcomes.
(19) All the iodinated proteins except the very prominently labeled high molecular weight protein (greater than 200,000 daltons) were located in a fraction identified enzymically and compositionally as plasma membrane.
(20) It has a number of advantages: it is far more rapid, less painful and offers good visualisation of the nerve roots as compared with air myelography; unlike myelography with iodine-based oils, it is not necessary to remove the contrast medium after the examination since Metrizamide is spontaneously resorbable.
Potassium
Definition:
(n.) An Alkali element, occurring abundantly but always combined, as in the chloride, sulphate, carbonate, or silicate, in the minerals sylvite, kainite, orthoclase, muscovite, etc. Atomic weight 39.0. Symbol K (Kalium).
Example Sentences:
(1) With NaCl as the major constituent of the bathing solution (potassium-free pipette and external solutions) the reversal potential (Er) of the noradrenaline-evoked current was about 0 mV.
(2) The transport of potassium ions through membranes of red blood cells was examined in in bitro experiments using a CMF of 4500 oersted.
(3) RNAs encoding a wild-type (RBK1) and a mutant (RBK1(Y379V,V381T); RBK1*) subunit of voltage-dependent potassium channels were injected into Xenopus oocytes.
(4) Nicardipine lowered systolic and diastolic blood pressure to normal, plasma aldosterone was reduced and serum potassium levels were increased.
(5) However, within 5 min potassium overcame the vanadate potentiation of ouabain binding regardless of the order in which it was added to the reaction mixture.
(6) In this study, a potassium nitrate-polycarboxylate cement was used as a liner and was found clinically to tend to preserve pulpal vitality and significantly eliminate or decrease postoperative pain.
(7) This promotion of repetitive activity by the introduction of additional potassium channels occurred up to an "optimal" value beyond which a further increase in paranodal potassium permeability narrowed the range of currents with a repetitive response.
(8) Assuming 1 kg LBM to contain 52.1 mmol potassium, the mean LBM was 3028 g in the I-NSM and 2739 in the I-SM; mean fat mass was similar in both groups.
(9) PYY inhibited the reduction in net absorption of sodium chloride and water evoked by vasoactive intestinal peptide (VIP), but did not affect the VIP-evoked increase in net potassium secretion.
(10) Thallium-201, a radiopharmaceutical that possesses many of the characteristics of potassium analogues, at present is receiving the greatest attention as a regional blood flow indicator.
(11) No changes were seen in the levels of serum creatinine and potassium, but episodes of hyperkalemia were more frequent in patients on Epo.
(12) Urinalysis revealed a low pH, increased ketones and bilirubin excretion, dark yellowish change in color, the appearance of "leaflet-shaped" crystals and increased red blood cells and epithelial cells in the urinary sediment, increased water intake, decreased specific gravity and decreased sodium, potassium and chloride in the urine.
(13) An electrogenic sodium-potassium pump appears to contribute materially to the steady-state potential and to certain of the transient potential responses of vascular smooth muscle.
(14) No difference in urinary sodium or potassium excretion was observed between SHR and WKY, but basal calcium and phosphate excretion were reduced in SHR (P less than 0.05).
(15) There were no relationships between blood pressure and calorie-adjusted intakes of fats, carbohydrates, sodium, potassium, calcium or magnesium.
(16) The effects of insulin on the renal handling of sodium, potassium, calcium, and phosphate were studied in man while maintaining the blood glucose concentration at the fasting level by negative feedback servocontrol of a variable glucose infusion.
(17) A calcium dependent potassium conductance was probably involved in the slow phase, because it was sensitive to inorganic calcium blockers.
(18) The renal response to aldosterone, measured by urinary sodium and potassium excretion, was determined in adrenalectomized rats that had been previously fed either a high potassium diet or a control diet.
(20) The concentration of potassium (K+) and sodium (Na+) was measured in breast cyst fluid (BCF) from 611 cysts greater than 3 ml aspirated in 520 women with gross cystic disease of the breast.