(1) The high transition enthalpy for kerasin is ascribed to a lesser accommodation of gauche conformers in the hydrocarbon chains just below the transition temperature.
(2) Aryl hydrocarbon hydroxylase (AHH) inducibility, carbon monoxide in expired air (CO), serum gammaglutamyl-transferase (GGT), and total cholesterol were compared in equal-sized, age-matched samples of healthy middle-aged males born in 1921, 1934-1936, and 1946 attending the ongoing preventive medical population program in Malmö.
(3) The length of the hydrocarbon chains of the surface-modified silica supports had no significant influence on the selectivity.
(4) The specificity of binding to microsomal proteins of metabolically activated hydrocarbons has been studied.
(5) Aryl hydrocarbon (benzo(a)pyrene) hydroxylase is present and inducible in Buffalo rat liver cells in culture.
(6) The possible occupational cause of the disease, as more solvents in the mud have the structure of aromatic hydrocarbons is discussed.
(7) Experiments with a series of adsorbents homologous with CPAD-Sepharose, in which the length of the hydrocarbon chain was varied, provided strong evidence of hydrophobic interactions, in addition to ionic interactions, in the binding of these proteins to CPAD-Sepharose.
(8) In the hydrocarbon promotion study, dose related increases were observed in the incidence of ACF in male rats promoted with UG or 50 ppm TMP for 24 or 60 weeks.
(9) The results also demonstrated that there was not any apparent correlation between the receptor-binding avidities and in vitro monooxygenase enzyme-induction potencies for the most active polynuclear aromatic hydrocarbons.
(10) Both main-stream and side-stream cigarette smoke condensates and some fractions, containing water-soluble bases, water-insoluble bases, and polycyclic aromatic hydrocarbons, were found to induce AHH activity in lung and liver, the lung being induced to the greatest extent.
(11) Pancreas transplantation offers the possibility of preventing the development and progression of diabetic lesions by adequate control of hydrocarbon metabolism.
(12) A comparison of the relative cytosolic Ah (9S) receptor binding affinities and aryl hydrocarbon hydroxylase (AHH) induction potencies of these hydrocarbons with their 4S protein binding affinities demonstrated the following: five compounds, namely 1,2,5,6-dibenz[a]-anthracene, 1,2,3,4-dibenz[a]anthracene, picene, benzo[a]pyrene and 3-methylcholanthrene exhibited high to moderate binding affinities for the 4S and 9S cytosolic proteins (EC50 values less than 10(-6) M) and induced AHH in rat hepatoma cells; three compounds, namely perylene, benzo[e]pyrene and benzo[g,h,i]perylene exhibited high affinities for the 4S binding protein (1.25 X 10(-7), 4.4 X 10(-8) and 2.9 X 10(-8) M, respectively) and low affinities (EC50 values greater than 10(-5) M) for the Ah receptor protein; moreover these three compounds did not induce AHH in rat hepatoma H-4-II E cells in culture.
(13) It was found that HBSAg was strongly bound to straight hydrocarbon chains with more than seven carbon atoms.
(14) The parent hydrocarbons and the related K-region dihydrodiols induced some sister-chromatid exchanges but they were considerably less active than these two non-K-region diols.
(15) The effect of various fuel additives on the ability of platinum-palladium catalytic converters to remove the carbon monoxide and hydrocarbon components of automotive exhaust has been examined.
(16) Other chlorinated hydrocarbons as decachlorobiphenyl, pentachloronaphthalene, hexachloronaphthalene and hexachlorostyrene were identified, but not quantified.
(17) It has been estimated that natural oil seeps may also contribute as much as 10% of the hydrocarbons in the global marine environment.
(18) The metabolic fate of the carcinogenic aza-aromatic hydrocarbon 7-methyl[7-(14)C]benz[c]acridine (14C-7MBAC) was studied in hepatocytes freshly isolated from untreated, phenobarbital-pretreated and 3-methylcholanthrene-pretreated rats.
(19) Renal cytochrome P450, aryl hydrocarbon hydroxylase, 7-ethoxycoumarin-O-deethylase, and benzphetamine N-demethylase were increased after partial hepatectomy by 84%, 360%, 165% and 406%, respectively.
(20) Antioxidants devoid of hydrocarbon tails, are 10-20 fold more potent LPO inhibitors than the corresponding AOs with hydrocarbon tails.
Hydrous
Definition:
(a.) Containing water; watery.
(a.) Containing water of hydration or crystallization.
Example Sentences:
(1) Ferritin stores iron within a hollow protein shell as a polynuclear Fe(III) hydrous oxide core.
(2) The statistical detection limit of Hg in seawater was 4 times better than that with a hydrous iron oxide--APDC flotation system in neutron activation determination.
(3) Resulting colloidal hydrous oxide particles bound the enzymes enabling subsequent separation from the media by low speed centrifugation.
(4) After having analyzed several surveys on natural inactivation of viruses in water, the authors have attempted to determine the survival life of poliomyelitis virus type 1 in hydrous medium, of known composition, well-buffered and devoid of any bacterial contamination on the one hand, and on the other hand, in a similar medium with addition of organic humate-type substances.
(5) Subsequently, the hydrous eluate from the alumina column was buffered at pH 6 and loaded on top of a preconditioned 3-ml Bond-Elut Certify column.
(6) The experimental results could be interpreted by a simple hypothetical model of the shape of the hydrous ferric oxide micelle at different iron contents, and reasonable correlation obtained between the rate of release and the calculated micelle surface areas.
(7) Full physical characterization of three modifications of lactose (hydrous, anhydrous, and Fast-Flo) is presented to illustrate the type of information which can be obtained using each of the techniques discussed.
(8) Small REDY cartridges containing urease, zirconium phosphate, hydrouse zirconium oxide and activated carbon are being utilized to regenerate dialysate.
(9) Its metastable precipitates include hydrous aluminosilicates and biogenic opal.
(10) The transport rates and permeability coefficients for the transport of sarin in solution across both hydrous and anhydrous excised human skin were determined quantitatively.
(11) The exchange kinetics indicated no detectable conformational differences in the tetracosamer with and without hydrous ferric oxide in the internal cavity of the molecule.
(12) The role of the protein shell in the formation of the hydrous ferric oxide core of ferritin is poorly understood.
(13) In this model, uptake and release of ferritin iron is controlled by the available surface area of the small crystalline particles of hydrous ferric oxide found within the ferritin molecule.
(14) Much more iron can be released experimentally by reduction of the ferric hydrous oxide core than by chelation of Fe3+ which has led to the notion that reduction is also the major aspect of iron release in vivo.
(15) Hydrous tin(IV) dioxide in the Na+-form appears to be the most efficient inorganic exchanger for a reliable and versatile clinical 82Rb generator.
(16) To explore the idea that the iron environment in soluble iron complexes could vary, we compared horse spleen ferritin to pharmaceutically important model complexes of hydrous ferric oxide formed from FeCl3 and dextran (Imferon) or chondroitin sulfate (Blutal), using x-ray absorption (EXAFS) and Mössbauer spectroscopy.
(17) In ferritin, iron is stored by oxidative deposition of the ferrous ion to form a hydrous ferric oxide mineral core.
(18) The structure of ferritin is very complex, consisting of a protein coat of 24 polypeptide subunits, approximately 20 kDa, which surrounds an inorganic phase of hydrous ferric oxide.
(19) The potential impact of acidic deposition on As and Se in soils cannot readily be assessed with respect to human exposure, but it would appear that the behavior of these metalloids in poorly buffered, poorly immobilizing soils, e.g., sandy soils of low metal hydrous oxide content, would be most affected.
(20) In order to study the mechanisms by which nutrients influence post-trauma metabolism, Sprague-Dawley rats received a 25% full-thickness burn and were randomly assigned to receive 12.5 g kg-1 bodyweight (BW) per day amino acids (AA) only, AA and 14.7 g hydrous glucose kg-1 BW per day or AA and 14.7 g hydrous xylitol kg-1 BW per day.