Sonic Vesicles
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Caracterização estrutural de agregados formados pelo antifúngico anfotericina B e lipídios catiônicos: uma possível formulação farmacológica / Structural characterization of aggregates formed by the antifungal drug amphotericin B and cationic lipids: a possible pharmacological formulation
Amphotericin B (AB) is a natural antibiotic, produced by Streptomyces nodosus, with a very potent antifungal activity. It is a polyene macrolide molecule, isolated in 1953. Since then, it has been extensively used in the treatment of systemic mycotic infections. Considering AB very low solubility in aqueous medium, it has been largely used as an aqueous disp
Publicado em: 2008
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2. Humoral immune response to an antigen from Porphyromonas gingivalis 381 in periodontal disease.
The humoral immune responses of patients with periodontitis were evaluated to characterize the host response to Porphyromonas gingivalis. A sonic extract of P. gingivalis 381 from whole cells was fractionated by gel chromatography and ion-exchange chromatography. The fractionated extracts were evaluated by Western blot (immunoblot) analyses with patient sera
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3. Photosynthetic Apparatus in the Green Bacterium Chloropseudomonas ethylicum
Holt, Stanley C. (Dartmouth Medical School, Hanover, N.H.), S. F. Conti, and R. C. Fuller. Photosynthetic apparatus in the green bacterium Chloro-pseudomonas ethylicum. J. Bacteriol. 91:311–323. 1966.—When cells of Chloro-pseudomonas ethylicum were broken by ballistic disruption and examined by electron microscopy, vesicles 1,300 to 1,500 A long and 300
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4. Microparticles harbouring sonic hedgehog: Role in angiogenesis regulation
Sonic Hedgehog (Shh) is a morphogen involved in embryonic development of nervous system. Also, it has been shown that recombinant Shh can modulate angiogenesis under ischemic conditions. However, angiogenic effects of endogenous Shh have not been completely elucidated. Using small membrane-derived vesicles expressing Shh (MPsShh+), we have shown that, althou
Landes Bioscience.
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5. Isolation of the envelope of vesicular stomatitis virus.
Vesicular stomatitis virus was disrupted by a combination of freezing and thawing, osmotic shock, and sonic treatment. Subviral components were separated by isopycnic centrifugation. The low-density, lipid-rich fractions were pooled and shown to contain primarily viral glycoprotein. Further purification of this material resulted in the isolation of a prepara
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6. LOCALIZATION OF RESPIRATORY ENZYMES IN INTRACYTOPLASMIC MEMBRANES OF AZOTOBACTER AGILIS
Pangborn, J. (University of California, Davis), Allen G. Marr, and S. A. Robrish. Localization of respiratory enzymes in intracytoplasmic membranes of Azotobacter agilis. J. Bacteriol. 84:669–678. 1962.—Thin sections of the cells of Azotobacter agilis which have been disrupted by sonic treatment, by osmotic shock, or by ballistic disintegration reveal a
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7. Energy coupling in the active transport of proline and glutamate by the photosynthetic halophile Ectothiorhodospira halophila.
When illuminated, washed cell suspensions of Ectothiorhodospira halophila carry out a concentrative uptake of glutamate or proline. Dark-exposed cells accumulate glutamate but not proline. Proline transport was strongly inhibited by carbonylcyanide-m-chlorophenylhydrazone (CCCP), a proton permeant that uncouples photophosphorylation, and by 2-heptyl-4-hydrox
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8. The Control of Morphogenesis: An Enzymatic Mechanism for the Initiation of Septum Formation in Yeast
Previous work with yeast has indicated that chitin is the specific component of the septum between mother and daughter cell. Experiments with synchronized cells show that chitin synthesis is initiated at a precise time in the cell cycle. Newly discovered features of the chitin synthetase system suggest how this specificity in location and timing can be achie
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9. vhnf1, the MODY5 and familial GCKD-associated gene, regulates regional specification of the zebrafish gut, pronephros, and hindbrain
Mutations in the homeobox gene vHnf1 are associated with human diseases MODY5 (maturity-onset diabetes of the young, type V) and familial GCKD (glomerulocystic kidney disease). In an insertional mutagenesis screen in zebrafish, we isolated mutant alleles of vhnf1. Phenotypes of these mutants include formation of kidney cysts, underdevelopment of the pancreas
Cold Spring Harbor Laboratory Press.