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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric radiology 22 (1992), S. 182-186 
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Cerebral ultrasound (US) imaging was performed as a screening procedure in approximately 3,600 neonates and infants over a period of 18 months. Hyperechoic lesions in the basal ganglia and thalamic region were detected incidentally in 15 of these patients. Clinical diagnoses included cytomegalovirus infection, asphyxia, rotavirus infection, prematurity, amniotic infection, dysmorphic stigmata, hyperbilirubinemia, congenital heart disease, and diabetic fetopathia. Lesions showed a single punctate (n=5), multiple punctate (n=8), or stripe-like pattern (n=2), with no disease-specific distribution. Computed tomography performed in two of the 15 patients was normal. Lesions resolved within four to seven months in four of eleven cases who had follow-up studies, whereas echogenicities persisted in the remaining seven patients over a period of observation ranging between one to 15 months. Our results indicate that hyperechoic lesions in the basal ganglia and thalamic region may be associated with congenital infections and asphyxia, but could indicate some other unknown pathology. No correlation was found between the morphology of foci and both clinical diagnosis and results of follow-up studies.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric radiology 22 (1992), S. 410-412 
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Within a period of 2.5 years, cystic structures in the choroid plexus were encountered at cerebral sonography in 70 neonates and babies (45 male, 25 female; 18 premature babies). Their prevalence in patients examined during the first 4 weeks of life (n=55) was 3%. The size of the cysts ranged from 1–4 and, rarely, up to 7 mm. They were mostly solitary and unilateral. Follow-up sonograms over periods up to 13 months showed that most of the cysts perisisted unchanged. A few disappeared (n=7), while distinct increase in size was observed in 1 case. Since no additional sonographic changes were observed and none of the patients displayed any neurological abnormalities and no association existed with any other, particularly chromosomal, disease, such plexus cysts are postulated to represent a normal sonographic finding and do not require follow-up.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1433-0474
    Keywords: Schlüsselwörter Ballonplatzhalter ; CCAM ; Pneumonektomie ; Pneumothorax ; Key words Balloon prothesis ; CCAM ; Pneumonectomy ; Pneumothorax
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The rarely occurring bilateral CCAM has a poor prognosis. Case Report: At birth boy E. presented with respiratory distress. His bilateral severe CCAM was misdiagnosed until the typical bullous x-ray pattern developed within the first few days of life. His condition deteriorated despite conservative treatment. Facing respiratory and cardiac decompensation he underwent unilateral pneumonectomy. The diagnosis was histologically confirmed. A refillable balloon was implanted to prevent mediastinal shifting. Boy E. stabilized gradually and came off both CPAP and supplementary oxygen. At age 1 y, during a course of severe pneumonia he died of sudden cardiac arrest. Discussion: According to the literature, bilateral severe CCAM unequivocally leads to death within days or weeks. In contrast, our patient improved gradually after surgery. But, CCAM bears an increased risk of cardial decompensation in infancy which surgery can reduce but not eliminate. For the time being, in cases of severe bilateral CCAM there is no effective treatment modality other than surgery.
    Notes: Zusammenfassung Folgen der seltenen beidseitigen pulmonalen CCAM sind hochgradige Ateminsuffizienz und rechtskardiale Belastung mit Dekompensation typischerweise innerhalb weniger Lebenstage. Fallbericht: Unser Patient fiel als Neugeborenes durch respiratorische Insuffizienz auf. Eine beidseitige CCAM wurde initial als Atemnotsyndrom verkannt. Auch nach zügiger Diagnosestellung drohte unter konservativer Therapie die respiratorische und kardiale Dekompensation, weshalb wir uns zur einseitigen Pneumonektomie mit Einlage eines Ballonplatzhalters entschlossen. Die Histologie bestätigte unsere radiologische Diagnose. Im weiteren Verlauf zeigte sich zunächst eine Stabilisierung; der Patient war zeitweilig ohne Atemhilfe oder supplementären Sauerstoff. Mit 1 Jahr kam es zum Sekundenherztod im Rahmen einer schweren Pneumonie. Entgegen der kurzfristig infausten Literaturprognose berichten wir von einem zunächst guten Behandlungserfolg. Diskussion: In Analogie zur bronchopulmunalen Dysplasie ist ein bis zum 3. Lebensjahr wesentlich erhöhtes Risiko der kardialen Dekompensation anzunehmen. Die Operation kann dieses Risiko nur mindern, nicht ausschließen. In Anbetracht des – wenngleich temporären – Operationserfolgs halten wir therapeutischen Nihilismus bei beidseitiger CCAM für unangebracht.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    European radiology 4 (1994), S. 371-376 
    ISSN: 1432-1084
    Keywords: Contrast media ; Gastrointestinal tract ; Infants ; Iotrolan ; Radiography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Over the past 5 years we have used the new dimeric, non-ionic, water-soluble contrast agent iotrolan (Isovist-300) in 370 studies of the paediatric gastrointestinal tract. Iotrolan is by far the best accepted and tolerated contrast agent for young children. Because of its iso-osmolality it can be used without dilution. No ill effects were reported in cases of aspiration or perforation. In all studies very high contrast images were obtained and the required diagnostic information was provided. The only disadvantage of iotrolan is its present high price. However, in view of the small volumes required in children (10 ml is sufficient in 59% and 20 ml sufficient in 92% of investigations) this should not be a major obstacle to its use. Iotrolan promotes a much greater readiness among paediatricians and paediatric surgeons to have gastrointestinal studies performed on very small and very sick babies.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric radiology 26 (1996), S. 291-297 
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Purpose. A retrospective study was carried out in order to determine the role of sonography in establishing the diagnosis in extremity osteomyelitis.Materials and methods. The imaging documents of 24 infants and children aged from 2 weeks to 13 years with osteomyelitis (acute 21, chronic 3) were reviewed. Sonograms and conventional radiographs were available in all patients. Additional skeletal scintigraphy had been performed in 13 patients and MRI in only 3. Special emphasis was put on the different ultrasound findings and their onset in the course of disease.Results. Intra-articular fluid collections (in 15 cases) and/or subperiosteal abscess formation (in 12) were the most frequent early sonographic findings, and preceded any radiographic changes by several days in 11 of these cases. Together with positive clinical signs of inflammation, they were usually sufficient to establish the correct diagnosis. In selected cases, fluid or abscess puncture for immediate microscopic and later bacteriological studies was carried out under sonographic control. In addition, sonography was also able to detect superficial cortical erosion and even an intramedullary focus in a very young patient.Conclusion. Ultrasonography is a very helpful tool for establishing the correct diagnosis in osteomyelitis and reducing the frequency of additional imaging studies.
    Type of Medium: Electronic Resource
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  • 6
    Publication Date: 2016-09-21
    Description: Mutations that cause neurological phenotypes are highly informative with regard to mechanisms governing human brain function and disease. We report autosomal recessive mutations in the enzyme glutamate pyruvate transaminase 2 (GPT2) in large kindreds initially ascertained for intellectual and developmental disability (IDD). GPT2 [also known as alanine transaminase 2 (ALT2)]...
    Print ISSN: 0027-8424
    Electronic ISSN: 1091-6490
    Topics: Biology , Medicine , Natural Sciences in General
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  • 7
    Publication Date: 2012-11-04
    Description: RNA snap ™ is a simple and novel method that recovers all intracellular RNA quantitatively (〉99%), faster (〈15 min) and less expensively (~3 cents/sample) than any of the currently available RNA isolation methods. In fact, none of the bacterial RNA isolation methods, including the commercial kits, are effective in recovering all species of intracellular RNAs (76–5700 nt) with equal efficiency, which can lead to biased results in genome-wide studies involving microarray or RNAseq analysis. The RNA snap ™ procedure yields ~60 µg of RNA from 10 8 Escherichia coli cells that can be used directly for northern analysis without any further purification. Based on a comparative analysis of specific transcripts ranging in size from 76 to 5700 nt, the RNA snap ™ method provided the most accurate measure of the relative amounts of the various intracellular RNAs. Furthermore, the RNA snap ™ RNA was successfully used in enzymatic reactions such as RNA ligation, reverse transcription, primer extension and reverse transcriptase–polymerase chain reaction, following sodium acetate/ethanol precipitation. The RNA snap ™ method can be used to isolate RNA from a wide range of Gram-negative and Gram-positive bacteria as well as yeast.
    Keywords: RNA characterisation and manipulation
    Print ISSN: 0305-1048
    Electronic ISSN: 1362-4962
    Topics: Biology
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  • 8
    Publication Date: 2017-10-25
    Description: Ultrafast synthesis and switching of light polarization in nonlinear anisotropic metamaterials Nature Photonics, Published online: 29 September 2017; doi:10.1038/s41566-017-0002-6 Picosecond all-optical switching of the polarization of visible light is achieved by using the anisotropy and nonlinearity of a hyperbolic metamaterial.
    Print ISSN: 1749-4885
    Electronic ISSN: 1749-4893
    Topics: Physics
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  • 9
    Publication Date: 2014-12-29
    Description: A novel co-enrichment technique was designed for enrichment of magnetotactic bacteria from soil, water, and sediments. Delayed addition of iron uptake inducer and the iron source proved amenable to induce magnetosome synthesis by MTB followed by their separation from consortium using magnetic flux. We successfully enriched and isolated both North seeking as well as South seeking magnetotactic bacteria from Lonar Lake (Buldhana), Moti Lake (Jalna), Ghanewadi Lake (Jalna), Ganesh Lake (Miraj), Rankala Lake (Kolhapur), and industrial metal-contaminated glaying soils (Jalna) and a soil (Karad), (MS, India) exposed to high-voltage electric current. The hanging drop preparations and growth under magnetic stress on low-agar media allowed conformation of magnetotactic behavior of the isolates. Both Gram positive and Gram negative MTB were isolated with diverse morphologies. South seeking population was more predominant. The soil inhabitants showed little dwelling property which was more prominent in case of aquatic inhabitants. The use of in situ pH and salt concentrations during enrichment and isolation found suited. The simultaneous growth of whole consortium in the system ensured the in situ simulation of microenvironment needful for proper growth of fastidious MTB.
    Print ISSN: 0233-111X
    Electronic ISSN: 1521-4028
    Topics: Biology
    Published by Wiley-Blackwell
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