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  • 1
    Electronic Resource
    Electronic Resource
    Acquired carnitine abnormalities in critically ill children (1997)
    Springer
    European journal of pediatrics 156 (1997), S. 864-869 
    Details
    ISSN: 1432-1076
    Keywords: Key words Carnitine ; Child ; Head injury ; Heart defects ; Sepsis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In order to characterize the role of carnitine during metabolic stress, we prospectively determined carnitine profiles in plasma and urine on admission, days 2, 5, 10 and 15, among 28 critically ill children free of any known conditions associated with secondary carnitine deficiency. More than 25% of plasma and 50% of urinary carnitine measurements were abnormal; 96% (27/28) of patients displayed on at least one occasion an abnormal [〈−2 SD or 〉+2 SD] carnitine value in plasma. Three children had extremely low [〈10 μmol/l] free carnitine (FC) levels in plasma. Plasma esterified and FC levels on admission were not related to the risk of mortality [PRISM score], to muscle lysis [CK values], and to the caloric intake. Levels of FC and esterified carnitine in plasma were unrelated to those measured in urine. Conclusion Abnormal plasma and urine carnitine measurements are frequently found in critically ill children; the biological significance of these perturbations remains unclear. Caution must be exercised before concluding that an abnormal carnitine value is indicative of an underlying hereditary metabolic disorder in this population.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004310050732
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  • 2
    Electronic Resource
    Electronic Resource
    Relationships Between Phosphatidylcholine, Phosphatidylethanolamine, and Sphingomyelin Metabolism in Cultured Oligodendrocytes (1997)
    Oxford, UK : Blackwell Science Ltd
    Journal of neurochemistry 68 (1997), S. 0 
    Details
    ISSN: 1471-4159
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract: In most cell types the major pathway of sphingomyelin synthesis is the direct transfer of the phosphocholine head group from phosphatidylcholine to ceramide catalyzed by the enzyme l-acylsphingosine:phosphatidylcholine phosphocholinetransferase (SM synthase; EC 2.7.8.-). Although this pathway has been demonstrated in brain tissue, its quantitative importance has been questioned. An alternative biosynthetic pathway for sphingomyelin synthesis in brain tissue has been proposed, viz., the direct transfer of phosphoethanolamine from phosphatidylethanolamine to ceramide, followed by methylation of the ethanolamine moiety to a choline group. We have evaluated various possible biosynthetic pathways of sphingomyelin synthesis in rat spinal cord oligodendrocytes, the myelin-forming cells of the CNS, by labeling cells in culture with radiolabeled choline, ethanolamine, or serine. Our results indicate that, in oligodendrocytes, most of the phosphocholine for the biosynthesis of sphingomyelin is provided by phosphatidylcholine, which is predominantly derived from de novo synthesis. No evidence was found for the operation of the alternative pathway via ceramide-phosphoethanolamine. Furthermore, our results indicate that a small pool of phosphatidylcholine is provided by methylation of phosphatidylethanolamine, which in turn is formed preferentially by decarboxylation of phosphatidylserine.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1471-4159.1997.68031252.x
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  • 3
    Electronic Resource
    Electronic Resource
    Selective defoliation by sheep according to slope and plant species in the hill country of New Zealand (2003)
    Oxford, UK : Blackwell Science Ltd
    Grass and forage science 58 (2003), S. 0 
    Details
    ISSN: 1365-2494
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: The objective of the study was to evaluate the grazing behaviour by sheep in hill country paddocks in New Zealand which had received two long-term fertilization and stocking rate treatments [high fertility–high stocking rate (HH); low fertility–low stocking rate (LL)]. Herbage accumulation and selective grazing were evaluated within low slope (LS), medium slope (MS) and high slope (HS) categories. Transects lines were placed and tillers of Agrostis capillaris and Lolium perenne in the LS category; A. capillaris, Anthoxanthum odoratum and L. perenne in the MS category; and A. capillaris and A. odoratum in the HS category were marked. The leaf length of each marked tiller was measured and used to determine selective grazing over 3 weeks during each season. The highest herbage accumulation rates were during spring and the lowest in summer and winter. The LS category showed the highest herbage accumulation rates and HS the lowest. Except for autumn, the marked tillers were more frequently grazed in the HH than in the LL paddock. During summer, autumn and spring, grazing frequency in the slope categories was in the order LS 〉 MS 〉 HS. During winter sheep did not discriminate between slope category. During summer, autumn and spring, sheep did not selectively graze the species studied but this was not the case during winter. Overall, sheep selectively grazed L. perenne. In all the seasons L. perenne consistently had the longest leaves but within species there was no consistent relationship between leaf length and probability of being grazed. Selective grazing changed through the year according to herbage accumulation rate. Sheep concentrated grazing in the category LS when herbage accumulation rate was high, but they did not discriminate between slope categories in winter when herbage accumulation rate was low.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-2494.2003.00386.x
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  • 4
    Electronic Resource
    Electronic Resource
    Yuri, Stoyanov: The hidden tradition in Europe. The secret history of medieval Christian heresy : London, Penguin Books, 1994 (1996)
    Cambridge : Cambridge University Press
    The @journal of ecclesiastical history 47 (1996), S. 714-714 
    Details
    ISSN: 0022-0469
    Source: Cambridge Journals Digital Archives
    Topics: History , Theology and Religious Studies
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1017/S0022046900014779
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  • 5
    Electronic Resource
    Electronic Resource
    Elevated Serum Heat-Shock Protein 70 Levels in Patients with Acute Infection: Use of an Optimized Enzyme-Linked Immunosorbent Assay (2003)
    Oxford, UK : Blackwell Science Ltd
    Scandinavian journal of immunology 58 (2003), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Heat-shock proteins (Hsps) are highly conserved throughout evolution and evoke great interest both in basic biology and in medicine. They are expressed in small quantities under normal conditions, and their expression can be strongly induced by several stressors. Although their action is basically intracellular, it is now obvious that these proteins can be released into the extracellular environment from viable cells. In this study, the human Hsp 70 serum concentrations were determined using an optimized, cost-effective enzyme-linked immunosorbent assay (ELISA). The average intra-assay variation was 6%, whereas the average interassay variation was 9%. The sensitivity of the assay was 10 ng/ml, and spiking experiments showed recoveries between 101 and 109%. As an application of the technique, we have investigated the serum levels of human Hsp 70 in patients with infection and in healthy subjects. Our data show significantly higher levels of Hsp 70 (P  = 0.003) in patients compared to control subjects. Positive correlations were noticed between the serum levels of Hsp 70 and various markers of inflammation (IL-6; r = 0.579, P = 0.009, TNF-α; r  = 0.552, P  = 0.012, IL-10; r  = 0.361, P = 0.002). We conclude that Hsp 70 is involved in inflammation of infectious origin. The interindividual variation in the serum concentration of Hsp 70 precludes the use of serum Hsp 70 levels to distinguish patients from healthy subjects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3083.2003.01341.x
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  • 6
    Electronic Resource
    Electronic Resource
    Das Konstrukt Lebensqualität Metaanalytische Validierung und die Entwicklung eines modularen Erhebungssystems (1999)
    Springer
    Der Nervenarzt 70 (1999), S. 41-53 
    Details
    ISSN: 1433-0407
    Keywords: Schlüsselwörter Lebensqualität ; Metaanalyse ; Depressive ; Schizophrene ; Facettenanalyse ; Modulares System ; Key words Quality of life ; Metaanalysis ; Depression ; Schizophrenia ; Facet analysis ; Modular system
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The construct Quality of Life (QoL) is investigated by metaanalysis of eight (inter)nationally validated questionnaires in a multicenter study. Data have been collected in a mentally healthy (n=479), a depressed (n=171) and a schizophrenic (n=139) sample. Conventional psychometric criteria and a facet analytical methodology have been applied. The resulting questionnaire „Modular System for Quality of Life” (MSQoL) consists of a core module with 47 items (one „G-factor” and six subdimensions), which is sufficiently valid for all three samples. Additionally, there are four specific modules (demography, family, partnership, profession). No specific modules can be identified for the psychopathological subgroups. The validated radex structure for subjective QoL offers the opportunity for a cumulative research design and for adaptations to the actual setting.
    Notes: Zusammenfassung In einer von der Arbeitsgruppe „Lebensqualität (LQ)” der „Arbeitsgemeinschaft für Methodik und Dokumentation in der Psychiatrie” (AMDP) unterstützten multizentrischen Studie wird das Konstrukt Lebensqualität (LQ) anhand von acht (inter)national validierten Erhebungsinstrumenten sowie einer gesunden (n=479), einer depressiven (n=171) und einer schizophrenen (n=139) Stichprobe metaanalytisch untersucht. Neben herkömmlichen psychometrischen Kriterien liegt der methodische Schwerpunkt dabei auf einem facettenanalytischen Vorgehen. Der resultierende Fragebogen „Modulares System zur Lebensqualität” (MSLQ) besteht aus einem für alle 3 Stichproben hinreichend validen Kernmodul mit 47 Items (ein „G-Faktor” und 6 Subdimensionen) sowie 4 spezifischen Modulen (Demographie, Familie, Partnerschaft, Beruf). Für die psychopathologischen Subgruppen lassen sich keine spezifischen Module etablieren. Die validierte Struktur der subjektiv eingeschätzten Lebensqualität (in Form einer facettenanalytischen Radexkonstellation) bietet die Möglichkeit zu einer kumulativ angelegten Forschung und einer untersuchungsspezifischen Anpassung des MSLQ.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001150050399
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  • 7
    Electronic Resource
    Electronic Resource
    Umstellung von typischen auf atypische Neuroleptika Richtlinien zur ambulanten und stationären Behandlung (2000)
    Springer
    Der Nervenarzt 71 (2000), S. 859-875 
    Details
    ISSN: 1433-0407
    Keywords: Schlüsselwörter Schizophrenie ; Typische Antipsychotika ; Atypische Antipsychotika ; Umstellung ; Keywords Schizophrenia ; Conventional antipsychotics ; Atypical antipsychotics ; Conversion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract The introduction of atypical antipsychotics has presented new options for the pharmacological treatment of schizophrenic patients. It is assumed that in the near future, neuroleptic medication will shift from conventional to atypical antipsychotics for an increasing number of patients. The present article addresses guidelines for the conversion from conventional to atypical neuroleptics in inpatient and outpatient settings.
    Notes: Zusammenfassung Mit der Einführung der atypischen Antipsychotika haben sich neue Möglichkeiten in der pharmakotherapeutischen Behandlung schizophrener Patienten ergeben. Es ist anzunehmen, dass in den folgenden Jahren viele weitere Patienten von typischen auf atypische Präparate umgestellt werden. Der vorliegende Artikel befasst sich mit stationären und ambulanten Richtlinien zur Umstellung von typischen Neuroleptika auf atypische Antipsychotika. Diskutiert werden Möglichkeiten der Identifizierung geeigneter Kandidaten, Empfehlungen bei der Auswahl des atypischen Antipsychotikums und praktische Vorgehensweisen bei der Umstellung. Ergänzend werden Dosierungsrichtlinien der einzelnen atypischen Antipsychotika, mögliche Entzugssyndrome und andere Komplikationen des Präparatewechsels sowie substanzspezifische Aspekte der Umstellung dargestellt. Ein letztes Kapitel befasst sich mit den notwendigen psychotherapeutischen Interventionen, die im Rahmen einer Umstellung der antipsychotischen Medikation beachtet werden sollten.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001150050677
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  • 8
    Electronic Resource
    Electronic Resource
    Ambient pH signalling in ascomycetous yeasts involves homologues of theAspergillus nidulans genes palF and palH (2000)
    Springer
    Molecular genetics and genomics 263 (2000), S. 505-513 
    Details
    ISSN: 1617-4623
    Keywords: Key wordsYarrowia lipolytica ; Saccharomyces cerevisiae ; Ambient pH signalling ; Signal transduction ; Transmembrane protein
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract In Yarrowia lipolytica, the transcription factor Rim101p mediates both pH regulation and control of mating and sporulation. Like its homologues PacC of Aspergillus nidulans and Rim101p of Saccharomyces cerevisiae, YlRim101p is activated by proteolytic C-terminal processing, which occurs in response to a signal transduced by a pathway involving several PAL gene products. We report here the cloning and sequencing of two of these genes, PAL2 and PAL3. PAL2 encodes a putative 632-residue protein with six possible transmembrane segments, which differs from the transmembrane proteins Rim9p of S. cerevisiae and PalI of A. nidulans, but is homologous to A. nidulans PalH and to the product of the ORF YNL294c, a predicted polypeptide of unknown function in S. cerevisiae. PAL3 encodes an 881-residue polypeptide that is homologous to PalF of A. nidulans and to a newly identified putative polypeptide of S. cerevisiae. Both PAL2 and PAL3 are expressed constitutively, regardless of ambient pH. Mutations in these genes affect growth at alkaline pH and sporulation in both Y. lipolytica and in S. cerevisiae. They affect invasiveness of haploid strains in S. cerevisiae only, and conjugation in Y. lipolytica only. These results highlight the conservation of the Pal pathway initially described in A. nidulans.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004380051195
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  • 9
    Electronic Resource
    Electronic Resource
    Antimicrobial, phytotoxic, nematicidal, cytotoxic, and mutagenic activities of 1-hydroxypyrene, the initial metabolite in pyrene metabolism by the basidiomycete Crinipellis stipitaria (1995)
    Springer
    Bulletin of environmental contamination and toxicology 55 (1995), S. 251-257 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00203017
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  • 10
    Electronic Resource
    Electronic Resource
    Markers of cellular dysoxia during orthotopic liver transplantation in pigs (1998)
    Springer
    Intensive care medicine 24 (1998), S. 268-275 
    Details
    ISSN: 1432-1238
    Keywords: Key words Swine ; Liver transplantation ; Oxygen consumption ; Gastric tonometry ; Lactate ; Pyruvate ; Ketone bodies ; Carnitine ; Free fatty acids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Objective: To characterize global, regional, and end-organ markers of cellular dysoxia during orthotopic liver transplantation and early reperfusion in pigs. Design: Descriptive study. Setting: University hospital research laboratory. Animals and interventions: 7 fasted, anesthetized, and mechanically ventilated Yorkshire pigs underwent orthotopic liver transplantation. Oxygen consumption (VO2) and oxygen delivery (DO2) were both calculated using standard formulae. Gastric interstitial pH and the gastroarterial partial pressure of carbondioxide (PCO2) gradient were measured with a gastric tonometer. The following were determined from arterial blood samples: serum lactate to pyruvate ratio, serum 3-hydroxybutyrate to acetoacetate ratio, plasma free fatty acids, and plasma free and total carnitine levels. Measurements and results: Data were collected 1 h after induction of anesthesia (I), at the end of the anhepatic phase (A), and 1 h after reperfusion (R). Median (range) VO2 values obtained at the specified time points were: I 318 (206–1860), A 210 (152–408), R 330 (214–424) ml/kg per min, respectively (NS); DO2 values were: I 1828 (1382–3259), A 1219 (452–2492), R 1741 (1345–12 071) ml/kg per min, respectively (NS). The lactate to pyruvate ratio, reflecting the redox potential of the cytosol, progressively increased: I 22 (9–46), A 29 (16–68), R 43 (23–55) (P〈 0.05). Gastric interstitial pH, as well as the gastroarterial PCO2 gradient values at the specified time points did not reach statistical significance. Levels of ketone bodies (3-hydroxybutyrate+acetoacetate) remained lower than 0.120 mmol/l. The ketone body ratio did not significantly vary over time (NS). Plasma esterified and free carnitine concentrations and free fatty acid values remained within normal limits (NS). Among these markers, the ketone body ratio presented the largest area under the receiver operating characteristic curve as a marker of postoperative mortality, with an inflexion point at 0.9. Conclusions: In this study, orthotopic liver transplantation was associated with significant variations over time in the redox potential of the cytosol. Postoperative mortality was, however, related to the redox state of the liver mitochondria. Our data suggest the occurrence of abnormal tissue oxygenation during liver transplantation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001340050564
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