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  • 1
    Electronic Resource
    Electronic Resource
    Biliary disease in metachromatic leukodystrophy (1983)
    Springer
    Pediatric radiology 13 (1983), S. 313-318 
    Details
    ISSN: 1432-1998
    Keywords: Biliary tract ; Metachromatic leukodystrophy ; Ultrasound
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract This paper illustrates the previously unreported sonographic changes in the biliary tract in metachromatic leukodystrophy (MLD). Gallbladder wall thickening due to sulfatide deposition, intraluminal globules of sulfatide or papillomatosis may cause symptoms referrable to the biliary tract in these patients. A series of patients whom, we have studied is briefly alluded to in order to bring to the attention of the radiologist MLD as a rare cause of biliary disease in children.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01625956
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  • 2
    Electronic Resource
    Electronic Resource
    Hypoxic/ischaemic cerebral injury in the neonatal brain (1983)
    Springer
    Pediatric radiology 13 (1983), S. 307-312 
    Details
    ISSN: 1432-1998
    Keywords: Ultrasound ; Neonate ; Hypoxic/ischaemic lesion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Ultrasound has been used in 11 neonates whose history or clinical features suggested the possibility of hypoxic/ischaemic lesions. The ultrasound findings were correlated with computed tomographic findings in nine infants and with pathological findings in two. On ultrasound scan, areas of increased echoes represented both hypoxic/ischaemic and haemorrhagic lesions. However, the distinction between them could not be made with certainty. Cystic changes were shown clearly by ultrasound as were cerebral vascular pulsations in and adjacent to the areas of increased echoes. With computed tomography, hypoxic/ischaemic lesions were represented by areas of decreased density and haemorrhagic lesions by areas of increased density. Computed tomography failed to clearly demonstrate the cystic changes. Three types of lesions, viz. diffuse, focal and periventricular were based on the location of brain injury, the former two occurring in term infants and the latter in premature infants. Ultrasound has been shown to be of value for definition of the site and extent of hypoxic/ischaemic cerebral lesions in the newborn and for observation of their evolution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01625955
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Pancreatic carcinoma in a neonate (1983)
    Springer
    Pediatric radiology 13 (1983), S. 284-286 
    Details
    ISSN: 1432-1998
    Keywords: Neonate-adenocarcinoma ; Computed tomography ; Pancreas ; Ultrasound
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The clinical and radiographic findings in a neonate with adenocarcinoma of the head of the pancreas are presented. CT revealed the mass to be well defined, with an inhomogeneous density before and after intravenous contrast enhancement. Ultrasound revealed the mass to be mainly densely echogenic with small, irregular, echo-free areas. The portal vein was intimately applied to the posterior aspect of the mass. The literature concerning adenocarcinoma of the pancreas in the pediatric age group is reviewed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00973349
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Congenital epithelial splenic cysts in children (1982)
    Springer
    Pediatric radiology 12 (1982), S. 119-125 
    Details
    ISSN: 1432-1998
    Keywords: Spleen ; Cysts ; Ultrasound ; Abdomen ; Mass
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The clinical, radiographic and sonographic features of four children with congenital epithelial splenic cysts are described. All four cases presented with a left upper quadrant mass and few symptoms. In one case the spleen descended into the pelvis in the upright position. In three cases the sonographic findings showed the mass to be completely sonolucent. In the fourth case the mass was echogenic and echoes were distributed homogeneously throughout the mass. These internal echoes were due to the presence of fat droplets within the cyst fluid. Internal echoes may also be due to hemorrhage into the cyst. In all four cases a rim of splenic tissue was visible around part of the cyst.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00971799
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Paradoxical absence of aggression during naloxone-precipitated morphine withdrawal (1975)
    Springer
    Psychopharmacology 43 (1975), S. 43-46 
    Details
    ISSN: 1432-2072
    Keywords: Aggression ; Morphine ; Naloxone ; Apomorphine ; Amphetamine ; Narcotic Withdrawal
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Aggression, which is normally seen during withdrawal from narcotics, could not be produced in morphine-dependent rats by the administration of naloxone at doses which cause other signs of withdrawal. Apomorphine injected instead of naloxone was capable of producing aggression, without other withdrawal signs. Naturally occurring aggression (72-hr withdrawal) was enhanced by apomorphine and unaffected by naloxone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00437613
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  • 6
    Electronic Resource
    Electronic Resource
    Dopaminergic mediation of the interoceptive cue produced by d-amphetamine in rats (1975)
    Springer
    Psychopharmacology 42 (1975), S. 185-193 
    Details
    ISSN: 1432-2072
    Keywords: Amphetamine ; Dopamine ; Haloperidol ; State-Dependent Behavior ; Apomorphine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract After rats were trained to differentiate between the effects of d-amphetamine and saline in a state-dependent task, pretreatment with the tyrosine hydroxylase inhibitor, α-methyl-p-tyrosine, significantly decreased amphetamine discrimination. Pretreatment with the dopamine-Β-hydroxylase inhibitor, disulfiram, or with the tryptophan hydroxylase inhibitor, p-chloro-phenylalanine, was observed to have no effect on the rats' ability to discriminate d-amphetamine. Administration of haloperidol, a selective dopamine receptor blocker, completely abolished the amphetamine discrimination, whereas α- and Β-adrenergic receptor blockade had no effect. Apomorphine, a dopamine receptor stimulant, produced amphetamine-like responses and this was, likewise, abolished by pretreatment with haloperidol. These data suggest that dopaminergic systems mediate the interoceptive cue produced by d-amphetamine in rats, and these results are discussed in relation to possible dopamine mediation of amphetamine psychosis and paranoid schizophrenia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00429551
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Effect of apomorphine and nigrostriatal lesions on aggression and striatal dopamine turnover during morphine withdrawal: Evidence for dopaminergic supersensitivity in protracted abstinence (1974)
    Springer
    Psychopharmacology 34 (1974), S. 37-44 
    Details
    ISSN: 1432-2072
    Keywords: Aggression ; Morphine Addiction ; Apomorphine ; Dopamine Receptors ; Receptor Supersensitivity ; Narcotic Abstinence ; Nigrostriatal Lesion ; Medial Forebrain Bundle Lesion ; Protracted Abstinence ; Dopamine Turnover
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Reliable aggression was seen in rats which were grouped 30 days after undergoing continuous withdrawal from morphine. This withdrawal aggression, associated with long-lasting effects of morphine dependence, was blocked by morphine or lesions of the nigrostriatal bundle, but not by lesions of the median forebrain bundle. When the nigrostriatal lesioned rats were treated with a small dose of apomorphine, the aggression was reinstated. Apomorphine reduced the turnover of dopamine in the 30-day withdrawn rats at doses which were ineffective in similarly housed non-dependent rats. These results suggest that animals undergoing protracted morphine abstinence show aggression due to a latent dopaminergic supersensitivity, similar to that previously reported during acute narcotic withdrawal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00421218
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  • 8
    Electronic Resource
    Electronic Resource
    Ability of 3-carboxysalsolinol to produce ethanol-like discrimination in rats (1980)
    Springer
    Psychopharmacology 68 (1980), S. 277-281 
    Details
    ISSN: 1432-2072
    Keywords: Drug discrimination ; Ethanol ; Apomorphine ; Salsolinol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The purpose of the present study was to investigate the possible generalization to 3-carboxysalsolinol (3C-SAL) in a group of rats trained to discriminate a low dose of ethanol (200 mg/kg IP) from the nondrug condition and in another group trained to discriminate 0.16 mg/kg IP apomorphine (AP) from the nondrug condition using a drug discrimination paradigm. In test sessions, ED50 for ethanol was 52.0 mg/kg and ED50 for AP was 0.01 mg/kg. In the ethanol-trained rats, 1.8 mg/kg 3C-SAL produced drug responses. In the AP-trained rats, 200 mg/kg ethanol produced drug responses whereas 1.8 mg/kg 3C-SAL produced only a partial drug response. The results are in harmony with the hypothesis that salsolinol in the central nervous system of the rat may be responsible for the discriminability of ethanol. The possible involvement of dopaminergic systems is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00428115
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  • 9
    Electronic Resource
    Electronic Resource
    Sonographic studies of human soleus and gastrocnemius muscle architecture: gender variability (2000)
    Springer
    European journal of applied physiology 82 (2000), S. 236-244 
    Details
    ISSN: 1439-6327
    Keywords: Key words Gastrocnemius ; Gender ; Muscle architecture ; Soleus ; Ultrasound
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The purpose of this study was to establish if there are gender differences in muscle architecture in relaxed human soleus and gastrocnemius muscles of normal, live subjects. Ultrasonography was used to measure fiber bundle length, muscle thickness, and angles of pennation in a total of ten predetermined sites in the medial and lateral heads of gastrocnemius and the anterior and posterior soleus in 19 males and 16 females. Percentage differences between males and females for each parameter were recorded. Gender differences were statistically analyzed using multivariate analysis of variance. In the gastrocnemius and soleus muscles of males and females the differences between the overall fiber bundle length, angle of pennation and muscle thickness were statistically significant (P 〈 0.05). Overall, females were found to have longer average muscle fiber bundle length and males thicker muscles and larger angles of pennation. The greatest percentage differences of the architectural parameters between males and females were in the posterior soleus: 13% difference in fiber length and 26% difference in angle of pennation in the midline of posterior soleus and 26% difference in muscle thickness of the lateral part of posterior soleus. No correlation was found between leg length and fiber length, angle of pennation or muscle thickness. Fiber length (decreased), angle of pennation (greater) and muscle thickness (greater) of most parts of the gastrocnemius and soleus muscles were significantly different in males and females. Leg length of males and females did not correlate to these architectural parameters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004210050677
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