Precipitating System
Mostrando 13-24 de 24 artigos, teses e dissertações.
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13. Adult respiratory distress syndrome during pregnancy and immediately postpartum.
From 1976 to 1983, the adult respiratory distress syndrome occurred in 14 patients during pregnancy or within a month postpartum. There were 8 survivors, giving a 43% mortality. All but 2 patients had obstetric-related precipitating events--labor problems, infections, eclampsia-toxemia, and obstetric hemorrhages. During emergency cesarean sections, 3 patient
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14. Nonspecific Precipitation of Serum Proteins by Sodium Lauryl Sulfate in Agar Diffusion and Immunoelectrophoresis
The anionic detergent sodium lauryl sulfate (SLS), in a final concentration of 0.1% and greater, reacted with whole serum in agar diffusion and immunoelectrophoresis to form artifactual precipitin lines. These lines occurred when either Ionagar or agarose was used as the supporting gel and were not affected by the presence of urea and 2-mercaptoethanol. Anal
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15. Coordinate Transcriptional Control in the Hyperthermophilic Archaeon Sulfolobus solfataricus
The existence of a global gene regulatory system in the hyperthermophilic archaeon Sulfolobus solfataricus is described. The system is responsive to carbon source quality and acts at the level of transcription to coordinate synthesis of three physically unlinked glycosyl hydrolases implicated in carbohydrate utilization. The specific activities of three enzy
American Society for Microbiology.
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16. Milk precipitins, circulating immune complexes, and IgA deficiency.
Twenty-two patients with selective IgA deficiency were studied for the presence of serum precipitins to bovine milk, bovine and fetal calf serum, and circulating immune complexes. Fifty-nine percent had circulating immune complexes, 50% had milk precipitins, 23% had precipitins to bovine serum, and 13% had precipitins to fetal calf serum. All patients with p
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17. Spatially Oscillating Activity and Microbial Succession of Mercury-Reducing Biofilms in a Technical-Scale Bioremediation System
Mercury-contaminated chemical wastewater of a mercury cell chloralkali plant was cleaned on site by a technical-scale bioremediation system. Microbial mercury reduction of soluble Hg(II) to precipitating Hg(0) decreased the mercury load of the wastewater during its flow through the bioremediation system by up to 99%. The system consisted of a packed-bed bior
American Society for Microbiology.
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18. Extraction of streptococcal type 12 M protein by cyanogen bromide.
Conditions for the release of streptococcal type 12 M protein from whole cells by cyanogen bromide are described; they demonstrated that methionine is not essential to the structural arrangements which account for some of its immunological and biological properties. The released M protein was separated from other proteins by column chromatography with hydrox
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19. A Brain Protein Unique to the Olfactory Bulb
Soluble extracts from several regions of the mouse brain manifested regionally specific protein band patterns on polyacrylamide gel electrophoresis. In particular, one protein band appeared to occur uniquely in the olfactory bulb extracts where it was a quantitatively significant constituent of the soluble protein extract. This protein was purified to homoge
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20. Nature of the tumor-associated determinant(s) of carcinoembryonic antigen.
The carbohydrate moiety of carcinoembryonic antigen could be sequentially degraded by repeated cycles of periodate oxidation, reduction, and mild acid hydrolysis (Smith degradation). After three complete degradations, all fucose and sialic acid, 80% of the galactose, 65% of the mannose, and about 40% of the N-acetylglucosamine were eliminated without impairi
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21. Interleukin 2 mediates the inhibition of oligodendrocyte progenitor cell proliferation in vitro.
In the immune system, T-lymphocyte proliferation depends on interleukin 2 [IL-2 (T-cell growth factor)] interaction with specific receptors. In this study we show that IL-2 can specifically inhibit the proliferation of neonatal rat oligodendrocyte progenitor cells cultured in a serumless, chemically defined medium (oligodendrocyte-defined medium; ODM). IL-2
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22. Antigenic Differences Between Mycobacterium bovis Strain BCG and an Isoniazid-Resistant Mutant
The antigenicities of Mycobacterium bovis strain BCG and an isoniazid (INH) - resistant mutant were compared. Sonic extracts of heat-killed, washed bacteria were injected into rabbits, and antisera were produced (anti-BCG and anti-BCG-R). The sonic extracts were also subjected to ultracentrifugation, and test antigens were prepared from the resulting superna
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23. Fowl immunoglobulins: quantitation and antibody activity during Marek's disease in genetically resistant and susceptible birds.
Five-week-old birds of resistant (N) and susceptible (P) genetic lines were inoculated with the JM strain of Marek's disease (MD) virus. MD occurred only in P-line birds; one-third had died by the end of the experiment (63 days after inoculation). Sera were examined for antibodies (precipitating, virus neutralizing,and fluorescing), and immunoglobulins were
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24. Opsonization of Cryptococcus neoformans by a family of isotype-switch variant antibodies specific for the capsular polysaccharide.
A family of immunoglobulin isotype-switch variants was isolated by sib selection from a murine hybridoma which produced an immunoglobulin G subclass 1 (IgG1) antibody specific for the capsular polysaccharide of Cryptococcus neoformans. Antibodies of the IgG1, IgG2a, and IgG2b isotypes had similar serotype specificity patterns in double immunodiffusion assays