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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Macromolecules 27 (1994), S. 5773-5779 
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 20 (1970), S. 31-36 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The influence of platelet lipids and ADP on the contact product of the clotting system is reported. ADP together with platelet factor 3 cause an activation of the contact factors.
    Notes: Zusammenfassung Es wird über die Beeinflussung des Kontaktproduktes des Gerinnungssystems durch Plättchenlipid und ADP berichtet. ADP bewirkt zusammen mit Plättchenfaktor 3 eine Aktivierung der Kontaktfaktoren.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Acta neuropathologica 67 (1985), S. 345-349 
    ISSN: 1432-0533
    Keywords: Twins ; Fetus maceratus ; Microgyria ; Neuronal heterotopia ; Gastroschisis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A case of parabiotic twin pregnancy is described with early fetal co-twin loss and topical isocortical disruption and gastroschisis in the surviving twin. We conclude from this case that early fetal parabiotic twin syndrome (before 16 weeks of gestational age) may cause microgyria and neuronal heterotopia. The cerebral and extracranial findings can be explained as the result of multiple vascular obstructions. Whereas most cases of parabiotic twin syndrome with brain damage involve cystic necrosis, focal hypoplasia with disrupted development in the affected part has been found in the present case. The probable reason in discussed. The roentgenographic analysis of the dead twin fetus is consistent with the period of 13–16 weeks as the likely period in which microgyria and neuronal heterotopia originated in the surviving twin. The present case constitutes one of the rare instances in which neuronal migration disturbance in the human could be dated reliably.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-0533
    Keywords: Axonal spheroids ; Brain stem congenital
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A neonate with a rapidly fatal disease characterized by connatal hypertonia and arthrogryposis multiplex is described. Neuropathological investigations revealed bilateral thalamus and brain stem degeneration, axonal degeneration of pyramidal and other tracts in the spinal cord, and axonal spheroids in areas of origin of lower motor neurons and in the brain stem reticular substance. Congenital thalamic and brain stem degeneration is generally assumed to be the result of intrauterine asphyxia. The widespread occurence of axonal spheroids in the present neonate points to the possibility of a genetic or toxic origin for at least some of these cases.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-0533
    Keywords: Tuberous sclerosis ; Association with dysplasia of the corpus callosum ; Visceral malformations ; Case report
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A neuropathological study is presented of a case showing the association of tuberous sclerosis of the brain and dysplasia of the corpus callosum as well as omphalocele and malrotated colon. No signs of tuberous sclerosis were found in the internal organs. From a review of the literature this appears to be the fourth case report of tuberous sclerosis and dysplasia of the corpus callosum. The association with omphalocele, to our knowledge, has not yet been reported.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 47 (1969), S. 391-393 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Fibrinogen split products, added to normal plasma in amounts of more than 1 mg/ml plasma (which is about the amount produced in hyperfibrinolysis) diminish the activity of clotting factors II, V, VII, VIII and X. At the same time they prolong the fibrin polymerization time and thrombin time as has been shown by others. Concentrations of less than 1 mg/ml increase the activity of factors II and VIII and shorten the fibrin polymerization time; at the same concentration the other tests systems (factor V, VII, X) show a prolongation. This difference may be caused by a direct influence of fibrinogen split products not only upon the fibrinogenfibrinphase, but also upon the other coagulation factors. The decrease of activity of the other coagulation factors at higher split product concentration in a hyperfibrinolytic plasma could be explained by interference of the split products alone. Cleavage of the coagulation factor II, V, VII, VIII and X molecules by the action of plasmin seems not to be necessary to understand the effect.
    Notes: Zusammenfassung Der Zusatz von Fibrinogenspaltprodukten zu Normalplasma in Mengen, wie sie bei Hyperfibrinolyse auftreten können, verursacht bei über 1 mg/ml Plasma eine starke scheinbare Senkung der Gerinnungsfaktoren II, VII, VIII und X und, wie bekannt, eine Verlängerung der Fibrinpolymerisationszeit und Thrombinzeit. Bei niedrigeren Konzentrationen als 1 mg/ml kann es jedoch bei der Bestimmung der Faktoren II, VIII und der Fibrinpolymerisationszeit zu einer Verkürzung der Gerinnungszeit und gleichzeitig bei der Bestimmung der übrigen Faktoren zur Verlängerung der Gerinnungszeit des jeweiligen Testsystems kommen. Dies spricht dafür, daß die Fibrinogenspaltprodukte nicht nur die Phase der Fibrinogen-Fibrinumwandlung, sondern auch andere Gerinnungsfaktoren direkt beeinflussen. Der Aktivitätsverlust der Faktoren, welche nicht Fibrinogen oder Fibrin sind, ließe sich demnach in einem hyperfibrinolytischen Plasma allein durch die Wirkung der Spaltprodukte und ohne die Annahme einer Zerstörung ihrer Moleküle durch Plasmin erklären.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 46 (1968), S. 650-653 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Addition of plasma, heated to 56°, to platelet rich plasma resulted in a significant increase of platelet aggregation. Further increase of aggregation was achieved, when the euglobulin fraction of a heated plasma was used. Lower values were found by using serum fractions. After precipitation of plasma with 2% inulin the sediment showed a strong platelet aggregating effect while the supernatant was free of activity. Similar results could be produced by using zymosan instead of inulin. This aggregating principle was not destroyed by heating to 56°. It is suggested that inulin or zymosan precipitation resulted in a crude purification of a platelet aggregating factor.
    Notes: Zusammenfassung Nach Zugabe eines auf 56° erhitzten Plasmas zu plättchenreichem Plasma nahm die Plättchenaggregation signifikant stärker zu als nach Zugabe eines Nativplasmas. Eine noch stärkere Plättchenaggregation wurde durch die Zugabe der Euglobulinfraktion eines auf 56° erhitzten Plasmas erreicht. Nicht so deutlich war die Aggregationssteigerung der entsprechenden Serumzusätze. Wurde eine Fällung mit 2%iger Inulinsuspension vorgenommen, so nahm die Plättchenaggregation durch das Sediment der Inulinfällung signifikant zu, während dieser Effekt durch Zugabe des Überstandes vermißt wurde. Praktisch gleichsinnige Ergebnisse wurden durch die Zugabe eines durch Zymosan gefällten Plasmasediments erzielt. Erhitzen auf 56° zerstört diesen Faktor nicht. Es wird diskutiert, ob durch die Inulin- bzw. Zymosanfällung ein Plasmafaktor angereichert wird, der die Plättchenaggregation steigert.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 46 (1968), S. 507-509 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary A drecrease of platelet ATP under the influence of a heatstable plasma factor is described. This factor can be precipitated by inulin and belongs to the euglobulin fraction. The factor has no relation to the heatstable contact factors of the coagulation system. The process of heating and precipitation represents a purification rather than an activation.
    Notes: Zusammenfassung Es wird über einen hitzestabilen Plasmafaktor berichtet, der einen ATP-Verlust von Blutplättchen verursacht. Dieser Faktor läßt sich mit Inulin und Erniedrigung des pH auf 5,3 fällen. Er hat keine Beziehung zu den hitzestabilen Kontaktfaktoren des Gerinnungssystems. Erhitzen und Fällung stellen keine Aktivierung, sondern eine Anreicherung dar.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 44 (1966), S. 544-547 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary A state of heparin-shock with its well known clinical features results from repetition of intravenous injection of native heparin ten days after preceding treatment of pelvic and tibial vein thrombosis, or on the twenty sixth day following a delivery respectively. The extremity already affected with circulatory disturbance exhibits the largest persistence of cyanosis and pain. The shock is accompanied by changes in the coagulation system which may indicate the first step of a consumption syndrome. Thrombocyte count drops to zero and coagulation ceases. Transitory petechial and rectal as well as vaginal hemorrhages occur. All clinical symptoms can be readily explained on the basis of these observations. The probable causative mechanism is discussed.
    Notes: Zusammenfassung 26 Tage post partum kommt es 10 Tage nach vorausgegangener Heparintherapie einer Becken- und Beinvenenthrombose bei erneuter i.v. Injektion von natürlichem Heparin zu einem Schock unter dem bereits bekannten klinischen Bild. Cyanose und Schmerzen bleiben in der Extremität mit der präexistenten Kreislaufstörung am längsten bestehen. Der Schock wird von einer Reaktion des Gerinnungssystems begleitet, die die Vorstufe einer Verbrauchsreaktion sein kann. Die Thrombocyten fallen auf 0; das Blut gerinnt nicht. Vorübergehend treten Hautblutungen, eine rectale und eine vaginale Blutung auf. Alle klinischen Symptome lassen sich durch diese Beobachtungen einheitlich erklären. Ihre Ursache wird diskutiert.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 144 (1985), S. 338-342 
    ISSN: 1432-1076
    Keywords: Zellweger syndrome ; Autosomal recessive inheritance ; Cerebro-hepato-renal syndrome ; Peroxisomal disease ; Mental retardation ; Epilepsy ; Hepatic fibrosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 4.5-year-old male patient is described with chorioretinopathy, minor facial anomalies, delayed closure of the fontanel, mental retardation, moderate hypotonia, epilepsy and hepatic fibrosis. Postural control, intentional vocalising and manual dexterity were superior to the performance of patients with classical Zellweger syndrome (ZS). Morphologically distinct peroxisomes were absent in the liver. In blood elevated pipecolic acid levels and abnormal levels of bile acid intermediates were found. The plasmalogen content of erythrocytes was normal. In fibroblasts we found an accumulation of very long chain fatty acids, decreased activity of acyl CoA: dihydroxyacetone phosphate acyltransferase, and impaired de novo biosynthesis of plasmalogens. On the basis of these clinical, ultrastructural and biochemical characteristics we assume that this patient represents a milder variant of the classical cerebro-hepato-renal syndrome of Zellweger.
    Type of Medium: Electronic Resource
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