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  • 1
    ISSN: 1432-2161
    Keywords: Congenital abnormalities, genitourinary system ; Congenital abnormalities, cervical spine ; Laparoscopy ; Radiography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In 96 patients with congenital absence of the uterus and upper vagina, the Mayer-Rokitansky-KüsterHauser (MRKH) syndrome, it proved possible to distinguish between the typical and the atypical form using laparoscopy. The typical form was characterized by symmetrical nonfunctioning muscular buds (the Müllerian duct remnants) and normal fallopian tubes, and the atypical form by aplasia of one or both buds, one bud smaller than the contralateral one, with or without dysplasia of one or both fallopian tubes. The atypical form was found in 52 patients (54.2%). Radiographs of the spine showed that congenital spinal abnormalities, especially the Klippel-Feil (KF) syndrome, were seen in 14 of the 52 patients with the atypical form only. Renal agenesis or ectopia together with the MRKH and KF syndromes, known as the MURCS association (MU: Müllerian duct aplasia; R: renal agenesis/ectopia; CS: cervical somite dysplasia), was diagnosed in 10/52 patients in the atypical group. From our results we conclude that additional cervical spine films in patients with the MRKH syndrome are indicated only in the atypical form the syndrome. In those cases where the MRKH syndrome is associated with the KF syndrome, the MURCS association should be considered.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Neurosurgical review 12 (1989), S. 133-140 
    ISSN: 1437-2320
    Keywords: Brain edema ; brain swelling ; CT-densitometry ; head injury ; hyperaemia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Two-hundred and fifty-two computerized tomography (CT) scans of 107 patients with head injuries were analyzed. The most frequent consequence of trauma was a diffuse swelling of the brain in 91% of the cases. The severity of brain swelling and its course can be estimated by the compression of (or absence of) the intracranial cerebrospinal fluid space. These observations may be of prognostic value as well. By measurement of theHounsfield units (HU) in 52 cases the blood or water content in the brain tissues was assessed. An increase in blood content of the tissues (hyperaemia) can account for an increase in Hounsfield values. A decrease in HU suggests brain edema. The density measurements showed that in the first hours and days following head injury, the diffuse brain swelling was caused by severe cerebrovascular congestion in the majority (53%) of the cases. Immediate brain edema without a preceeding hyperaemic phase occurs less frequently (32%). Between the 1st and 4th day after injury, edema started to prevail, and between the 5th and 8th day the edematous type of brain swelling was present almost exclusively.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 95 (1962), S. 803-809 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 5-Monosubstituierte Pyrimidine werden aus 2-substituierten 1.1.3.3-Tetraalkoxypropanen mit Formamid erhalten. aus dem leicht zugänglichen 4-ydroxy-5-carbäthoxy-pyrimidin läßt sich die 4-Chlor-Verbindung darstellen, deren katalytische Hydrierung zu 5-Carbäthoxy-pyrimidin führt. Daraus erhält man mit Ammoniak bzw. Hydrazin Pyrimidin-carbonsäure-(5)-amid bzw.-hydrazid, deren Abbaureaktionen 5-Amino-pyrimidin ergeben.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 93 (1960), S. 1208-1211 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Synthese 2.5-substituierter Pyrimidine, 4-substituierter Isoxazole sowie 4- und 1.4-substituierter Pyrazole durch Ringschlußreaktion von α-Alkyl-β-dimethylamino-acroleinen mit Thioharnstoffen, Amidinen, Hydroxylamin und Hydrazinen wird beschrieben.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Aus 4-Chlor-5-carbäthoxy-pyrimidin erhält man mit Aminen, Alkoholaten und Mercaptiden Substituentenaustausch am C-4. 8-Hydroxy-purin läßt sich aus 4-Amino-pyrimidin-carbonsäure-(5)-amid bzw. -hydrazid einstufig durch Hofmann'schen bzw. Curtius'schen Abbau darstellen. Analog erhält man aus 4-Hydroxy-pyrimidin-carbonsäure-(5)-hydrazid das 2-Hydroxy-oxazolo [5.4-d]pyrimidin. Zu 3-Hydroxy-pyrazolo[3.4-d] pyrimidinen kommt man durch Ringschlußreaktionen von 4-Chlor-5-carbäthoxy-pyrimidin mit Hydrazinen.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 96 (1963), S. 1868-1872 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Bei der Kondensation von 4-Amino-5-carbäthoxy-pyrimidin mit CH-aciden Verbindungen (Estern, Nitrilen, Amiden) entstehen 2.4-freie Pyrido[2.3-d]-pyrimidine.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 63 (1930), S. A1 
    ISSN: 0365-9631
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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