(n.) Lead sulphide; the principal ore of lead. It is of a bluish gray color and metallic luster, and is cubic in crystallization and cleavage.
Example Sentences:
(1) Fourteen patients on average 10 months after transplantation of the kidney treated with Sandimmune were changed to a new Czechoslovak preparation Consupren, Galena (Cyclosporine A), while maintaining the other components of immunosuppressive treatment (azathioprine, prednisone).
(2) The galena forms currently on sale were, with the exception of lactate and pyrollidone carboxylate, immediately rejected since they contain insufficient Mg2+.
(3) An experimental comparative investigation provided evidence of identical immunomodulating properties of the Swiss cyclosporin A of Sandoz Company (Sandimmune) and the Czechoslovak cyclosporin of Galena Company (Consupren).
(4) A statistically significant excess of deaths from hypertensive disease (females aged greater than or equal to 65), ischemic heart disease (males and females aged greater than or equal to 65), and stroke (females aged greater than or equal to 65) was found in residents of Galena City.
(5) This study confirms that environmental agents in Galena are associated with, and may have contributed to, the causation of several chronic diseases in residents of this community.
(6) Mortality rates for 1980-85 for white residents of Galena and for the U.S. were compared using univariate analysis.
(7) Based on the unusual growth on galena, we name the new species Thiobacillus plumbophilus (type strain Gro7; DSM 6690).
(8) They grow by oxidation of H2S, galena (PbS) and H2.
(9) Our essential problem is to prepare a form of galena with acceptable taste, tolerated by the digestive tract and well absorbed; also, the carrier compound must not cause short- or long-term side effects.
(10) The non-selective treatment was performed in 125 dairy cows in the form of single administration of Oxymykoin foam (Galena) (70 cows) and Chronicin foam (Galena) (55 cows) after the last milking in lactation.
(11) Under the light microscope no significant changes were observed in the lungs from animals treated with galena, lead silicate, and travertine.
(12) Among residents of the three towns who had lived there at least 5 years prior to 1980, there was either a statistically significant or borderline excess reported prevalence in Galena of chronic kidney disease (females aged greater than or equal to 65), heart disease (females aged greater than or equal to 45), skin cancer (males aged 45-64), and anemia (females aged 45-64).
(13) Multivariate analyses revealed statistically significant associations of stroke, chronic kidney disease, hypertension, heart disease, skin cancer, and anemia with variables related to Galena exposure.
(14) Age- and sex-specific illness rates in whites in an exposed town (Galena) were compared with similar rates in two control towns.
(15) Results were compared with rats that were given particles of galena, lead silicate, travertine, and quartz.
Sulfur
Definition:
Example Sentences:
(1) Manometric studies with resting cells obtained by growth on each of these sulfur sources yielded net oxygen uptake for all substrates except sulfite and dithionate.
(2) Typically the iron-iron axis (gz) of the binuclear iron-sulfur clusters is in the membrane plane.
(3) Our study suggests that a major part of the renal antimineralocorticoid activity of spironolactone may be attributable to minor sulfur-containing metabolites or their precursors having a high renal clearance that affords access to their site of activity via the renal tubular fluid.
(4) Ferredoxin reductase (Fd-reductase) supplies reducing equivalents obtained from NADPH to mitochondrial cytochrome P450 enzymes via the small iron-sulfur protein ferredoxin.
(5) The loss of enzyme activity in sulfur-rhodanese does not involve cysteinyl residues but can be correlated with the modification of guanidino groups, notably that of Arg-186, the side chain of which may play a role in substrate binding.
(6) In two patients with extensive marrow necrosis, the diagnosis of marrow necrosis was established by morphologic and radioisotopic studies, and the extent of involvement was accurately assessed by marrow scanning with technetium Tc 99m sulfur colloid while the patients were still alive.
(7) It was presumed that thymohydroquinone is excreted as ethereal sulfuric acid conjugate in man.
(8) Also purple sulfur bacteria lowered BOD levels as demonstrated by the growth of T. floridana in sterilized sewage.
(9) An equivalent maximum growth response of rats fed L-methionine or N-acetyl-L-methionine was obtained when the total dietary sulfur amino acids compromised 0.36-0.41% of the diet.
(10) Histopathological evaluations showed that sulfuric acid particles alone did not cause inflammatory responses in centriacinar units of rat lung parenchyma (expressed in terms of percent lesion area) but did cause significant damage (cell killing followed by a wave of cell replication) in nasal respiratory epithelium, as measured by uptake of tritiated thymidine in the DNA of replicating cells.
(11) Ac-MPS of the hyaluronic acid type prevail in the ground substance of the myxoid and fibroblastic mesenchyma, while the substances containing sulfuric groups predominate in the tissue matrix exhibiting fibrogenic tendencies.
(12) Previous work demonstrated a differential decrease in iron-sulfur centers A, B and X which indicated that center X serves as a branch point for parallel electron flow through centers A and B (Golbeck, J.H.
(13) Our observation leads to the suggestion that, in vivo, either rhodanese is maintained in its more stable sulfur-substituted form or cellular compartmentalization prevents inactivation by nitrite.
(14) In contrast, the (Rp)-isomers, which have an equatorial exocyclic sulfur atom, bound to the enzyme without stimulation of its activity.
(15) A strong shoulder was observed at 2481.7 eV on the low-energy side of the sulfate absorption edge, deriving from a novel type of sulfur having a slightly lower oxidation state than sulfate sulfur.
(16) Long-term treatment with furosemide (up to 13 months) caused transient changes in the elemental content of the pancreatic acinar cells: a decrease in chloride and sulfur, and an increase in phosphorus, potassium and magnesium.
(17) The iron-sulfur proteins of the green photosynthetic bacterium Chlorobium have been characterized by oxidation-reduction potentiometry in conjunction with low-temperature electron paramagnetic resonance spectroscopy.
(18) The reaction is based on the reduction of sulfur dioxide at a dropping mercury electrode.
(19) Proton induced X-ray emission (PIXE) analyses were performed on single hair fibers in triplicate from 103 individuals in order to determine sulfur, zinc, calcium, and chlorine content.
(20) In a survey of the proteins from human hair, a genetic electrophoretic variant has been observed in the high-sulfur protein region.