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  • 11
    ISSN: 1432-1076
    Keywords: Key words Hypoparathyroidism ; 22q11 deletion ; DiGeorge syndrome ; Graves disease ; Idiopathic thrombocytopenic purpura
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The phenotypes of chromosomal 22q11.2 microdeletion are quite variable among individuals and hypoparathyroidism (HP) constitutes a definite portion of the clinical spectrum. For the correct diagnosis and pertinent follow up of the HP children due to del22q11.2, we tried to delineate the clinical characteristics of such patients. By employing fluorescence in situ hybridization (FISH) to all the patients diagnosed as HP in our clinic, ten possessed the 22q11.2 microdeletion. Among them, the incidence of cardiac defect (5/10), recurrent infection (1/10) and cleft palate (1/10) was modest. Additionally, seven of them had been diagnosed as HP during the infantile period, when their facial abnormality and intellectual problem had not become evident. Notably, two patients were complicated by Graves disease, while the association of idiopathic thrombocytopenic purpura was also observed in two girls. Conclusion HP due to del22q11.2 may be misdiagnosed as idiopathic, especially in an infant who lacks apparent complications like cardiac anomaly. They should be closely followed up for auto-immune complications.
    Type of Medium: Electronic Resource
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  • 12
    ISSN: 1432-1076
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 13
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 152 (1993), S. 605-608 
    ISSN: 1432-1076
    Keywords: Carbamazepine ; Adverse reactions ; Epilepsy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The clinical and epidemiological findings in children with epilepsy who experienced skin rashes induced by carbamazepine (CBZ) were prospectively evaluated. Thirty-three (9.9%) of 335 patients who received CBZ therapy experienced a skin rash. Seven had diffuse erythema, 13 miliary exanthema, 11 maculopapular or speckled reddish rash, 3 petechiae, and 2 mucocutaneous syndrome. A skin rash was more frequent in older children (over 6 years old). The skin rashes appeared soon after initiation of the therapy, i.e., from the 8th to 60th day (mean: 14.3±9.6 days) after the start of CBZ therapy and disappeared within a few days after discontinuation of the therapy. Haematological abnormalities (30.3%), such as leucocytopenia and thrombocytopenia, and hepatic dysfunction (27.3%) sometimes appeared concomitantly with the skin rash. CBZ is an effective and safe antiepileptic drug, but careful management is necessary on initiation of the therapy.
    Type of Medium: Electronic Resource
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  • 14
    ISSN: 1432-1076
    Keywords: Key words Skeletal dysplasia ; Osteopathia striata ; Short stature ; Dysmorphic facies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report two sporadic cases of a hitherto undescribed skeletal dysplasia with short stature and characteristic facies. The present patients, a 6-year-old girl and a 15-year-old boy, were almost equally affected. Craniofacial anomalies included a sloping forehead, bitemporal bulging, sparse medial eyebrows, a prominent nasal bridge, hypertelorism, proptosis, a beaked nose, hypoplastic alae nasi and a pointed chin. Shallow orbits, short anterior cranial fossae and bitemporal bossing found on skull radiograph corresponded with the facial dysmorphism. Thickening of the dorsum sellae was another hallmark in the skull. Skeletal survey revealed mild osteopenia, interpediculate narrowing of the lumbar spine with short neural arches and, most important, osteopathia striata of the long tubular bones. There was no sclerosis of the craniofacial bones. The clinical and radiological findings in the present patients were overall inconsistent with those of previously known skeletal dysplasias and congenital malformation syndromes, which possess osteopathia striata as a cardinal feature. Conclusion The unique clinical and radiological constellation of our patients constitutes a hitherto unknown bone dysplasia.
    Type of Medium: Electronic Resource
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  • 15
    Electronic Resource
    Electronic Resource
    Springer
    European biophysics journal 27 (1998), S. 63-68 
    ISSN: 1432-1017
    Keywords: Key words DNA ; Enzyme activity ; Atomic force microscopy ; Exonuclease ; BAL 31 nuclease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Physics
    Notes: Abstract We have applied atomic force microscopy (AFM) to the measurement of BAL 31 nuclease activities. BAL 31 nuclease, a species of exonuclease, is used to remove unwanted sequences from the termini of DNA before cloning. For cutting out only the appropriate sequences, it is important to know the nuclease properties, such as digestion speed and the distribution of the lengths of the digested DNA. AFM was used to obtain accurate measurements on the lengths of DNA fragments before and after BAL 31 nuclease digestion. We analyzed 4 DNAs with known number of base pairs (288, 778, 1818, and 3162 base pairs) for correlating the contour length measured by AFM with the number of base pairs under the deposition conditions used. We used this calibration for analyzing DNA degradation by BAL 31 nuclease from the AFM measurement of contour lengths of digested DNAs. In addition, the distribution of digested DNA could be analyzed in more detail by AFM than by electrophoresis, because digested DNA were measured as a population by electrophoresis, but were measured individually by AFM. These results show that AFM will be a useful new technique for measuring nuclease activities.
    Type of Medium: Electronic Resource
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  • 16
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 140 (1983), S. 268-272 
    ISSN: 1432-1076
    Keywords: Postural proteinuria ; Urinary protein components ; Upright lordotic posture
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Twenty-one protein components were measured in urine specimens from 12 subjects with postural proteinuria in the recumbent posture and after a period of upright lordotic posture. The lordotic posture produced an increased urinary excretion of total protein and 19 protein components, particularly of albumin, IgG globulin, and transferrin (128, 68, and 167-fold, respectively). However, 90 min after the lordotic posture, most of the protein components returned to initial values, whereas albumin, IgG globulin, and transferrin remained high. β2-Microglobulin, retinol binding protein, and lysozyme showed the smallest increases after the lordotic posture. These findings suggest that proteinuria occurring after the lordotic posture may be characterized by an increased glomerular permeability.
    Type of Medium: Electronic Resource
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  • 17
    ISSN: 0942-0940
    Keywords: Bradykinin ; fibrinopeptide A ; subarachnoid haemorrhage ; trabecula
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Fibrinopeptide A (FPA) levels as an indicator of thrombin activity in the cerebrospinal fluid (CSF) and plasma of 25 patients with subarachnoid haemorrhage (SAH) were measured serially by radioimmunoassay (RIA). FPA levels in CSF were extremely high on days 0–1 (1253±269 ng/ml, mean ± standard error) but decreased rapidly (11.3±3.9 ng/ml on days 2–4, 10.7±5.9 ng/ml on days 5–7, and 6.3±1.5 ng/ml on days 8–14). In the controls the FPA concentration in CSF was 1.2±0.9 ng/ml (mean ± standard deviation). Plasma FPA levels in patients with SAH showed no statistically significant changes with time. The bradykinin (BK) concentration in CSF and plasma in 27 patients with SAH was measured serially by RIA. The cocentrations in CSF were 122.7±22.7 pg/ml (mean ± standard error) on day 0, 38.6±6.1 pg/ml on day 1,22.7±6.3 pg/ml on day 2, and 17.1±3.0 pg/ml or less thereafter. Plasma BK levels in patients with SAH were higher than those in the control group, but there was no statistically significant change over time. From the measurement of FPA it was apparent that the coagulation system in the subarachnoid space is strongly activated in the early stage of SAH. The formation of BK in CSF after SAH is thought to be due to the contact activation of Hageman factor (intrinsic factor) in the subarachnoid space. Trabeculae as collagen bundles in the subarachnoid space were considered to have a possible role in activating the Hageman factor of the coagulation system in SAH.
    Type of Medium: Electronic Resource
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  • 18
    ISSN: 0942-0940
    Keywords: Cerebral vasospasm ; cerebral aneurysm ; calcium antagonist ; nicardipine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Calcium antagonists are currently most widely used for chronic cerebral vasospasm after aneurysmal subarachnoid haemorrhage (SAH). However, the vasodilatory effects of systemically administered calcium antagonists can be limited secondary to hypotension. We previously compared intrathecal and intravenous routes of administration of nicardipine. Intrathecal administration of nicardipine significantly dilated spastic basilar arteries on day 7 in a two-haemorrhage canine model of vasospasm. In the present communication, the effects of prophylactic, serial administration of intrathecal nicardipine on vasospasm was examined in 50 patients. Patients were classified as Fisher SAH group 3 and all had their aneurysms clipped within 3 days of SAH. Following placement of a cisternal drain, 2 mg of nicardipine was injected, three times each day for an average of 10 days. The control group consisted of 91 similar patients with cisternal drainage not treated with nicardipine. Intrathecal administration of nicardipine decreased the incidence of symptomatic vasospasm by 26%, angiographic vasospasm by 20% and increased good clinical outcome at one month after the haemorrhage by 15%. Postoperative angiograms revealed that patients in the nicardipine group showed less vasospasm of major cerebral arteries, near the tip of a drain in the basal cistern, but vasospasm in the A2 and M2 segments was not decreased. Radio-isotope cisternography suggested that nicardipine might not reach the subarachnoid space around A2 and M2 segments. Nine patients complained of headache probably secondary to nicardipine induced vasodilation. Two patients suffered from mengingitis, both were successfully treated. Intrathecal administration nicardipine appears to be effective in the treatment of vasospasm, but side effects were significant.
    Type of Medium: Electronic Resource
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  • 19
    ISSN: 0942-0940
    Keywords: Homovanillic acid (HVA ; 5-hydroxyindoleacetic acid (5-HIAA) ; Tryptophan (TRP) ; subarachnoid haemorrhage
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Homovanillic acid (HVA), 5-hydroxyindoleacetic acid (5-HIAA) and tryptophan (TRP) were measured in the CSF obtained from the basal cistern of 20 patients, who had undergone surgical obliteration of bleeding aneurysms within 3 days after subarachnoid haemorrhage (SAH). The concentrations of these substances, which were assayed by high performance liquid chromatography (HPLC), were the highest on days 3 or 4, and thereafter showed a gradual decrease with an increase in time. The cisternal CSF in patients who had severe pre-operative clinical grades of SAH or vasospasm contained relatively higher concentrations of HVA, 5-HIAA and TRP than those contained in patients who did not. It is proposed that SAH stimulates the release of monoamines from the brain with the resultant extracellular accumulation of their metabolites and their diffusion into CSF during the acute stage. This stimulatory effect of SAH on the brain monoamine system may be consistent with those previously reported in cases of cerebral haemorrhage or infarction.
    Type of Medium: Electronic Resource
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  • 20
    Electronic Resource
    Electronic Resource
    Springer
    Il nuovo cimento della Società Italiana di Fisica 18 (1996), S. 313-317 
    ISSN: 0392-6737
    Keywords: Mössbauer spectra ; Magnetism in interface structures (including layer and superlattice structures) ; Superface and interface chemistry ; Conference proceedings
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary Surface chemical states of57Co2+ and119Sb5+ ions adsorbed on γ-Fe2O3 and NiFe2O4 were studied in the presence of the aqueous phase using the magnetic interaction between the substrates and57Fe2+ or119Sn4+ arising from the adsorbed species. Two chemical forms were observed for the57Co2+ adsorbed on γ-Fe2O3; one giving a peak in the high-field region and another giving a broad distribution in the lower fields, which were attributed to57Co2+ at surfaceB sites of the spinel structure of γ-Fe2O3 and57Co2+ species weakly bonded to the substrate, respectively. In case of the NiFe2O4 substrate, the latter species was dominant and was converted to the former by heating. Most of the119Sb5+ ions adsorbed on the γ-Fe2O3 and NiFe2O4 particles were found to have a certain magnetic interaction with the magnetically ordered ions of the substrates.
    Type of Medium: Electronic Resource
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