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  • 1
    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
    s.l. : American Chemical Society
    Journal of the American Chemical Society 82 (1960), S. 269-276 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 74 (1952), S. 3693-3693 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Abdominal imaging 23 (1998), S. 652-656 
    ISSN: 1432-0509
    Keywords: Key words: Struma ovarii—Ovaries—MR imaging—Neoplasms—Thyroid.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: The purpose of this multi-institutional study was to examine the appearance of struma ovarii on magnetic resonance (MR) images. Methods: MR images of 12 patients with histologically proven struma ovarii were retrospectively reviewed. All patients underwent T1-weighted and T2-weighted imaging. Contrast-enhanced T1-weighted images with Gd-DTPA were available in 10 patients. The following determinations were made: tumor morphology, signal intensities, contrast-enhancement effects of solid components with Gd-DTPA, and comparison of MR images with resected specimens. Results: All 12 patients had both cystic and solid components, with a multilobulated surface and thickened septa. Signal intensities on T1-weighted images were mainly low, partly intermediate to high, or high, and those on T2-weighted images were mainly high, with different signal intensities. Contrast-enhancement effects were marked or moderate. The contents that showed low signal intensities on T1-weighted images and signal voids or low signal intensities on T2-weighted images were viscid gelatinous materials. Conclusions: A multicystic tumor with a solid component, a multilobulated surface, and signal intensities that indicate the presence of viscid gelatinous materials appear to be a characteristic MR finding of struma ovarii.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1432-1424
    Keywords: Key words: Sodium channels — Local anesthetics — Benzocaine — Butamben — Phospholipid membranes —2H NMR
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract. This paper presents experimental evidence that an aromatic compound that has a quadrupole moment locates in a polar headgroup region in the lipid membranes, but not in a membrane interior hydrophobic region, and discusses correlation to the site of action of benzocaine and butamben on sodium channels. The 2H NMR spectra of benzocaine-d4, benzocaine-d5, butamben-d4, and butamben-d9 in the model membranes were observed. The 2H NMR spectra of perdeuterated palmitic acid and selectively deuterated palmitic acids at C2, C3, C5, C6, C9, or C10, which were inserted into the lipid membranes, were also observed. The phosphatidylserine (PS), phosphatidylcholine (PC), and liquid mixtures composed of PS, PC, and phosphatidylethanolamine (PE), which contain or do not contain cholesterol, were employed. A moment analysis was applied to the 2H NMR spectra of palmitic-d31 acid. An order parameter, S CD , for each carbon segment was calculated from the observed quadruple splitting. We concluded that in the lipid mixture containing cholesterol, the aromatic rings of benzocaine and butamben locate around the glycerol moiety of the lipids and that when there exists no cholesterol, they locate a little more inside from the headgroup region, directing, in both cases, their amino groups upward (polar region) and the ethyl and butyl groups downward (hydrophobic region). These data cast a question on the site of action of the neutral local anesthetics in the sodium channels.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 21 (1980), S. 339-343 
    ISSN: 1432-0630
    Keywords: 42.80 ; 78.20 ; 85.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract A series of experiments for growing epitaxial PLZT thin films has been made with rf sputtering. X-ray and electron diffraction analyses confirm that the fabricated films grow epitaxially on SrTiO3 and MgO crystals. A good transparency in the region above 0.4 μm to infrared with good ferroelectric properties is obtained. Propagation loss of He−Ne laser light is less than 6 dB/cm, and the PLZT thin film is a promising candidate for the optical modulator and other functional elements for integrated optics.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    European radiology 4 (1994), S. 271-273 
    ISSN: 1432-1084
    Keywords: CT-Inflammatory pseudotumour of the spleen ; MRI
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report the CT and MRI findings of an inflammatory pseudotumour of the spleen, which is an extremely rare benign inflammatory lesion. CT scans obtained 1 h after contrast administration and T2-weighted MRI images clearly demonstrated the central fibrosis and peripheral granuloma of this lesion.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 143 (1985), S. 308-310 
    ISSN: 1432-1076
    Keywords: Adrenal hyperplasia ; Oestrogen ; Premature thelarche
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The case of a 14-month-old girl presenting with precocious breast development due to adrenal hyperplasia is reported. The endocrine studies revealed a slight elevation of the plasma progesterone, 17α-hydroxyprogesterone, testosterone and oestrone levels, and an increased urinary oestrogen excretion. The findings of the ultrasound examination and the evidence that the oestradiol concentration in the left adrenal vein was higher than in the right adrenal vein confirmed the diagnosis of left adrenal hyperfunction. Surgical exploration revealed unilateral hyperplasia of the adrenal cortex. After adrenalectomy the plasma hormone levels and urinary oestrogen excretion fell to normal, with concomitant regression of breast tissue. The girl shows no signs of recurrence of the disorder in a 2 year follow-up. This adrenal hyperplasia might be a benign adrenal disorder causing precocious breast development.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-1041
    Keywords: Key words Hypercholesterolaemia ; Pravastatin ; Mevalonate; cholesterol synthesis ; circadian rhythm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract In order to determine whether there is a difference in the effect of the hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitor pravastatin on cholesterol synthesis between the morning and the evening, we studied the 24-h profile of mevalonate in plasma and urine in 11 subjects with heterozygous familial hypercholesterolaemia. In study 1, eight subjects with familial hypercholesterolaemia took pravastatin (20 mg) once in the morning, and another 20-mg dose in the evening after a 1-week wash-out period. In study 2, five subjects with familial hypercholesterolaemia took pravastatin (20 mg per day) in the morning on 3 consecutive days and on 3 days in the evening after a 1 day wash-out. Plasma mevalonate concentrations were reduced at 9 h and 5 h after pravastatin administration in the morning and the evening, respectively. Urinary mevalonate excretion was significantly reduced at 4–8 h after pravastatin administration in the morning (51 vs 19 nmol ⋅h−1) and at 4–16 h after pravastatin administration in the evening (56 vs 27 nmol ⋅h−1). Daily urinary mevalonate excretion was equally and significantly reduced by pravastatin in the morning or evening. In conclusion, we found that morning and evening administration of pravastatin caused equal reductions in plasma and urinary mevalonate concentrations.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-1041
    Keywords: Hypercholesterolaemia ; Pravastatin ; Mevalonate ; cholesterol synthesis ; circadian rhythm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract In order to determine whether there is a difference in the effect of the hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase inhibitor pravastatin on cholesterol synthesis between the morning and the evening, we studied the 24-h profile of mevalonate in plasma and urine in 11 subjects with heterozygous familial hypercholesterolaemia. In study 1, eight subjects with familial hypercholesterolaemia took pravastatin (20 mg) once in the morning, and another 20-mg dose in the evening after a 1-week wash-out period. In study 2, five subjects with familial hypercholesterolaemia took pravastatin (20 mg per day) in the morning on 3 consecutive days and on 3 days in the evening after a 1 day wash-out. Plasma mevalonate concentrations were reduced at 9 h and 5 h after pravastatin administration in the morning and the evening, respectively. Urinary mevalonate excretion was significantly reduced at 4–8 h after pravastatin administration in the morning (51 vs 19 nmol · h−1) and at 4–16 h after pravastatin administration in the evening (56 vs 27 nmol · h−1). Daily urinary mevalonate excretion was equally and significantly reduced by pravastatin in the morning or evening. In conclusion, we found that morning and evening administration of pravastatin caused equal reductions in plasma and urinary mevalonate concentrations.
    Type of Medium: Electronic Resource
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