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  • Articles  (11,341)
  • United States  (7,183)
  • Molecular Sequence Data  (4,139)
  • Lipids
  • Medicine  (11,341)
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  • Articles  (11,341)
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  • 1
    Electronic Resource
    Electronic Resource
    Quantification of noncyclooxygenase derived prostanoids as a marker of oxidative stress
    Amsterdam : Elsevier
    Free Radical Biology and Medicine 10 (1991), S. 195-200 
    Details
    ISSN: 0891-5849
    Keywords: Arachidonic acid ; Assay ; Endocyclization ; Free Radical ; Lipids ; Mass Spectrometry ; Peroxidation ; Prostaglandin
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0891-5849(91)90076-F
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  • 2
    Electronic Resource
    Electronic Resource
    A role for dietary lipids and antioxidants in the activation of carcinogens
    Amsterdam : Elsevier
    Free Radical Biology and Medicine 5 (1988), S. 95-111 
    Details
    ISSN: 0891-5849
    Keywords: Antioxidants ; Benzo(a)pyrene ; Carcinogens ; Diet ; Lipids
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0891-5849(88)90035-4
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  • 3
    Electronic Resource
    Electronic Resource
    Lipid transfer in plants (1990)
    Springer
    Cellular and molecular life sciences 46 (1990), S. 579-585 
    Details
    ISSN: 1420-9071
    Keywords: Lipids ; phospholipids ; galactolipids ; fatty acids ; transfer ; binding ; membranes ; mitochondria ; chloroplasts ; biogenesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Plant cells contain cytosolic proteins, called lipid transfer proteins (LTP), which are able to facilitate in vitro intermembrane transfer of phospholipids. Proteins of this kind from three plants, purified to homogeneity, have several properties in common: molecular mass around 9 kDa, high isoelectric point, lack of specificity for phospholipids, and binding ability for fatty acids. The comparison of their amino acid sequences revealed striking homologies and conserved domains which are probably involved in their function as LTPs. These proteins could play a major role in membrane biogenesis by conveying phospholipids from their site of biosynthesis to membranes unable to form these lipids. Immunochemical methods were used to establish an in vivo correlation between membrane biogenesis and the level of LTP or the amount of LTP synthesized in vitro from mRNAs. The recent isolation of a full-length cDNA allows novel approaches to studying the participation of LTPs in the biogenesis of plant cell membranes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01939696
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  • 4
    Electronic Resource
    Electronic Resource
    Phospholipid composition and fatty acid profiles of the phospholipids in bovine predentin (1977)
    Springer
    Calcified tissue international 24 (1977), S. 127-133 
    Details
    ISSN: 1432-0827
    Keywords: Dental pulp ; Dentin ; Phospholipids ; Fatty acids ; Lipids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary When bovine dental pulp was removed from erupted and unerupted molars the odontoblasts remained attached to the predentin-dentin shell, from which the soft, partially calcified predentin layer was removed for lipid analysis. The phospholipid and fatty acid composition of phospholipids and neutral lipids were the same in undemineralized bovine predentin from both erupted and unerupted calf molars. The major phospholipids present were phosphatidylcholine (52–56% of the total phospholipids) and ethanolamine phosphoglycerides (22–23%). About 10% of the ethanolamine phosphoglycerides were plasmalogens. The major fatty acids observed were palmitic, stearic, oleic, linoleic, and arachidonic acids. The phospholipid composition of predentin was different from that of undemineralized dental pulp. Predentin contained a significantly higher percentage of phosphatidylserine and sphingomyelin than dental pulp. The fatty acid profiles of the individual phospholipids in the bovine predentin layer were also determined, and for the most part they were comparable to similar comparisons made for other tissues. Predentin sphingomyelin contained only about 6% of 24-carbon fatty acids, which is a relatively low amount compared to sphingomyelin in most other tissues. The fatty acid compositions of predentin neutral lipids and phospholipids were similar to the compositions of dental pulp lipids, but both types of predentin lipids contained more docosapolyenoic acids. The phospholipid and fatty acid compositions of predentin lipids were different from those in human and rat dentin which have been reported by others.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02223306
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  • 5
    Electronic Resource
    Electronic Resource
    Stress adaptation in athletes: Relation of lipoprotein levels to hormonal response
    Amsterdam : Elsevier
    Pharmacology, Biochemistry and Behavior 48 (1994), S. 377-382 
    Details
    ISSN: 0091-3057
    Keywords: Cortisol ; Lipids ; Lipoproteins ; Physical exercise ; Stress ; Testosterone
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0091-3057(94)90541-X
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  • 6
    Electronic Resource
    Electronic Resource
    A survey of dermatophytes from human patients in the United States from 1985 to 1987 (1991)
    Springer
    Mycopathologia 114 (1991), S. 117-126 
    Details
    ISSN: 1573-0832
    Keywords: dermatophytes ; survey ; United States ; humans ; 1985/87
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract A survey of dermatophytes isolated from patients seeking medical advice was made from 1985 to 1987 in the United States. The survey included 54 locations with data from 45 cities and one state. Listing of the isolated dermatophytes and the frequency given by percentage of the total follows: Trichophyton rubrum 54.8%, T. tonsurans 31.3%, T. mentagrophytes 6.0%, Microsporum canis 4.0%, Epidermophyton floccosum 2.0%, M. gypseum 0.6%, and T. verrucosum 0.2%. Out of a total of 14,696 isolates M. audouinii was cultured 13 times, T. violaceum 12 times, M. nanum 6 times, T. terrestre 4 times, and T. soudanense twice. Single isolations were made of M.fulvum, M. ferrugineum and T. schoenleinii. Collection of dermatophyte data in Tucson, Arizona, began in 1966. In 1987, the first case of tinea capitis caused by T. tonsurans was observed. Other isolates of this organism as the cause of tinea capitis were made in this city during that year. These infections were in black children. With the recent growth of Tucson, the percentage of blacks in the population increased and this pathogen was introduced into the general population.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00436431
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  • 7
    Electronic Resource
    Electronic Resource
    Effect of essential oil ofHyssopus officinalis on the lipid composition ofAspergillus fumigatus (1994)
    Springer
    Mycopathologia 126 (1994), S. 163-167 
    Details
    ISSN: 1573-0832
    Keywords: Aspergillus fumigatus ; Essential oil ; Growth ; Lipids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Addition of the essential oil ofHyssopus officinalis to the culture medium ofAspergillus fumigatus induced alterations in both growth and lipid composition of this mould. Total lipids and sterols were reduced, whereas total phospholipids were increased. There were alterations in the proportions of fatty acids, neutral lipid and phospholipid fractions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01103770
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  • 8
    Electronic Resource
    Electronic Resource
    Effect of amphotericin B on the lipids of five different strains ofCryptococcus neoformans (1994)
    Springer
    Mycopathologia 128 (1994), S. 85-89 
    Details
    ISSN: 1573-0832
    Keywords: Amphotericin B ; Cryptococcus neoformans ; Lipids ; Sterols
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Cells of five strains ofCryptococcus neoformans were obtained for partial analysis of lipid composition. Quantitative analysis of lipids and sterols were completed, as well as qualitative analysis of sterols by thin-layer chromatography and by the ultraviolet spectra. Such determinations were made on cells cultured in the absence and presence of amphotericin B at sub-MIC (minimal inhibitory concentration) levels. Marked alterations of the lipid and sterol contents were observed in the amphotericin B — treated cells. Moreover, ergosterol disappeared in these antibiotic-exposed cells. It is concluded that amphotericin B altered the lipid profiles, especially sterols ofC. neoformans.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01103014
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  • 9
    Electronic Resource
    Electronic Resource
    Carbohydrate and lipid components of hyphae and conidia of human pathogenFonsecaea pedrosoi (1995)
    Springer
    Mycopathologia 132 (1995), S. 71-77 
    Details
    ISSN: 1573-0832
    Keywords: Fonsecaea pedrosoi ; Morphogenesis ; Carbohydrates ; Lipids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract The carbohydrate and lipid components of mycelium and conidia ofFonsecaea pedrosoi (Brumpt) were analysed by paper, thin-layer and gas-chromatography, mass spectrometry and ultraviolet spectroscopy. Glucose, mannose, galactofuranose, rhamnose and glucosamine were polysaccharide components identified inF. pedrosoi. Significant changes in the carbohydrate pattern occurred during the conversion of mycelium into conidia. Rhamnose was predominant in conidia whereas galactose was prominent in mycelium. Palmitic, stearic, oleic, linoleic, and arachidonic acids were the fatty acids identified in the total lipid fraction. Palmitic and oleic acids were major fatty acids. Marked alterations in the fatty acid constituents were observed between the cell types ofF. pedrosoi. Arachidonic acid was detected only in conidia and linoleic acid was preferentially identified in mycelium. Differences in the sterol composition was also associated with morphogenesis inF. pedrosoi. Two main sterols, ergosterol and another less polar sterol, not fully characterized, were found in mycelium whereas in conidia only the latter sterol was present.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01103778
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  • 10
    Electronic Resource
    Electronic Resource
    Lipid transport pathways in mammalian cells (1990)
    Springer
    Cellular and molecular life sciences 46 (1990), S. 569-579 
    Details
    ISSN: 1420-9071
    Keywords: Lipids ; membranes ; transport ; organelles ; vesicles
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A major deficit in our understanding of membrane biogenesis in eukaryotes is the definition of mechanisms by which the lipid constituents of cell membranes are transported from their sites of intracellular synthesis to the multiplicity of membranes that constitute a typical cell. A variety of approaches have been used to examine the transport of lipids to different organelles. In many cases the development of new methods has been necessary to study the problem. These methods include cytological examination of cells labeled with fluorescent lipid analogs, improved methods of subcellular fractionation, in situ enzymology that demonstrates lipid translocation by changes in lipid structure, and cell-free reconstitution with isolated organelles. Several general patterns of lipid transport have emerged but there does not appear to be a unifying mechanism by which lipids move among different organelles. Significant evidence now exists for vesicular and metabolic energy-dependent mechanisms as well as mechanisms that are clearly independent of cellular ATP content.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01939695
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