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  • 1
    Electronic Resource
    Electronic Resource
    Intracellular Signaling and Genetic Reprogramming during Agonist-Induced Hypertrophy of Cardiomyocytes (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 752 (1995), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1995.tb17443.x
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  • 2
    Electronic Resource
    Electronic Resource
    Patterns of Myocardial Gene Expression after Cycles of Brief Coronary Occlusion and Reperfusion (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 723 (1994), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1994.tb36734.x
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  • 3
    Electronic Resource
    Electronic Resource
    Fatigue in sol-gel derived barium titanate films (1999)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 85 (1999), S. 341-346 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The effect of fatigue on the electrical properties of sol-gel derived ferroelectric barium titanate (BaTiO3) thin films have been investigated. At room temperature, the resistivity, breakdown field, dielectric constant (ε), and loss tangent (tan δ) decreases after fatigue while the coercive field increases. Fatigue also influences the dielectric properties of the film at high temperatures. The sharpness and magnitude of the peak in the dielectric constant at the transition temperature decreases after fatigue. The loss tangent of the virgin film showed a peak at the transition temperature while it is absent in the case of the fatigue film. The phenomena are explained in terms of (i) the accumulation of point charge defect, (ii) the pinning of domain wall mobility, and (iii) the space charge layer models of fatigue. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.369453
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  • 4
    Electronic Resource
    Electronic Resource
    An ethnographic account of opium consumers of Rajasthan (India): socio-medical perspective (1995)
    Oxford, UK : Blackwell Publishing Ltd
    Addiction 90 (1995), S. 0 
    Details
    ISSN: 1360-0443
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: This communication gives an ethnographic account of 200 opium users in selected villages of three Western districts in the desert state of Rajasthan. The region is known for its traditional use of raw opium in the form of amal or doda, due to its climate and difficult living conditions. The ethnographic information suggests that opium use is in many ways integrated into the socio-cultural fabric of the local community. Self-medication with opium mitigates various health problems and the drug is also used to relieve mental distress. Besides these uses for relief of distress, the drug is used recreationally and within settings which facilitate social bonding. The traditional roles ascribed to the use of this intoxicant cannot be dismissed when formulating long-term preventive and control measures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1360-0443.1995.90192.x
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  • 5
    Electronic Resource
    Electronic Resource
    The tissue distribution in BALB/c mice of C-14-labeled JM216, an orally active platinum antitumour compound (1996)
    Springer
    Cancer chemotherapy and pharmacology 39 (1996), S. 170-175 
    Details
    ISSN: 1432-0843
    Keywords: Key words JM216 ; Platinum tissue distribution ; BALB/c mice ; Carbon 14
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  The ammine/amine platinum(IV) dicarboxylates have been developed as orally active platinum antitumor agents, and one of these, [PtCl2(NH3)(C6H11NH2) (OCOCH3)2] (JM216), is undergoing clinical trials at present. A synthesis method was developed to radiolabel JM216 with carbon 14 at the carboxylate carbon. The labeling efficiency was 92%, and the purity as shown by high-performance liquid chromathography (HPLC) was 96% after recrystallisation. The radiolabeled JM216 was given orally to BALB/c mice and detailed tissue-distribution data were obtained (blood plasma, kidney, liver, spleen, brain, lung, muscle and skin) for time points of 2 h and 2, 6 and 10 days. Comparison of these data with previously reported data for distribution of platinum obtained by atomic absorption spectroscopy has shown distinct differences, especially for the liver and the kidney. This clearly indicates a difference in behaviour between the labeled ligand and the platinum centre, suggesting detachment of the ligand in vivo.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002800050555
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  • 6
    Electronic Resource
    Electronic Resource
    Comparative intraperitoneal pharmacokinetics of three platinum analogues (1991)
    Springer
    Cancer chemotherapy and pharmacology 28 (1991), S. 315-317 
    Details
    ISSN: 1432-0843
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The pharmakokinetic profiles of intraperitoneally infused platinum analogues were determined in 13 women exhibiting minimal residual disease following surgery and systemic chemotherapy for epithelial ovarian cancer of fallopian tube carcinoma by following the disposition of tracer doses of195mPt radiolabel. Six patients received iproplatin, four were given cisplatin and three received carboplatin. The present data demonstrate no difference in the disposition of total platinum between these three analogues, but differences in the kinetics of free platinum may exist.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00685543
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  • 7
    Electronic Resource
    Electronic Resource
    Early perifocal cell changes and edema in traumatic injury of the spinal cord are reduced by indomethacin, an inhibitor of prostaglandin synthesis (1993)
    Springer
    Acta neuropathologica 85 (1993), S. 145-153 
    Details
    ISSN: 1432-0533
    Keywords: Spinal cord trauma ; Edema ; Myelin basic protein ; Indomethacin ; Prostaglandins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The possibility that prostaglandins participate in the formation of perifocal edema and cell changes following a localized trauma to the spinal cord was investigated in a rat model. A laminectomy was performed in urethane-anesthetized animals at the thoracic T10–11 segment. Using a scalpel blade a unilateral lesion, about 2 mm deep and 5 mm long was made 1 mm to the right of the midline. The deepest part of the injury occupied Rexed's lamina VII of the dorsal horn. Animals were pretreated with the prostaglandin synthesis inhibitor, indomethacin (10 mg/kg, i.p. 30 min prior to trauma). Five hours after the injury the water content was determined and cell changes in and around the primary lesion were examined by light and electron microscopy. Normal and injured rats without indomethacin pretreatment served as controls. Untreated injured rats showed a profound increase of water content in the traumatized T10–11, the rostral (T9) and caudal (T12) segments compared with normal rats. These segments also exhibited marked cell changes in ipsilateral and contralateral dorsal and ventral horns. The gray matter had a spongy appearance and some nerve cells were condensed and distorted. The white matter contained many distorted fibers. Immunostaining for myelin basic protein showed a marked reduction of reaction product in the injured animals compared with normal rats. Ultrastructurally widened extracellular spaces, cytoplasmic vacuolation, swollen and condensed neurons, swollen astrocytes and vesiculation of myelin were frequent findings. Pretreatment of rats with indomethacin significantly reduced the accumulation of water in the traumatized and in the rostral and caudal segments. The structural changes were less pronounced particularly in the cranial and caudal segments. The results indicate that prostaglandins somehow are involved in the pathophysiology of perifocal spinal cord injury and influence both the fluid microenvironment and the early cell changes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00227761
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  • 8
    Electronic Resource
    Electronic Resource
    p-Chlorophenylalanine, a serotonin synthesis inhibitor, reduces the response of glial fibrillary acidic protein induced by trauma to the spinal cord (1993)
    Springer
    Acta neuropathologica 86 (1993), S. 422-427 
    Details
    ISSN: 1432-0533
    Keywords: Spinal cord trauma ; Glial fibrillary acidic protein ; Serotonin ; p-Chlorophenylalanine ; Immunohistochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The possibility that serotonin may influence the early response of astrocytes around a spinal cord trauma was investigated in a rat model by making a unilateral incision into the right dorsal horn of the T10-11 segments. One group of rats received a serotonin synthesis inhibitor, p-chlorophenylalanine (p-CPA) before injury in doses which cause a depletion of serotonin in the cord. Another group of traumatised rats did not receive p-CPA. All animals were allowed to survive for 5 h. Samples for immunohistochemistry were taken from the T9, T10-11 and T12 segments of the cord. Paraffin sections were immunostained for glial fibrillary acidic protein (GFAP) using monoclonal antibodies and avidin-biotin complex technique. Trauma to the cord resulted in a marked increase of GFAP immunoreactivity in all the investigated segments, particularly in the ipsilateral side. Pretreatment with p-CPA markedly reduced the GFAP response. This drug did not by itself influence the GFAP immunoreactivity of the cord of untraumatised rats. Our results show that trauma to the spinal cord induces a rapid enhancement of GFAP immunoreactivity in the cord which is present even far away from the primary lesion. This response can be prevented by pretreatment with the serotonin synthesis inhibitor, p-CPA. The results indicate that serotonin influences the increase of GFAP immunoreactivity following spinal cord injury either directly or indirectly, for instance by its microvascular reactions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00228575
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  • 9
    Electronic Resource
    Electronic Resource
    Maternal vitamin A restriction alters biochemical development of the brain in rats (1990)
    Springer
    Cellular and molecular life sciences 46 (1990), S. 208-211 
    Details
    ISSN: 1420-9071
    Keywords: Brain development ; DNA ; RNA ; protein ; vitamin A ; rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The biochemical development of the fetal brain in relation to maternal vitamin A restriction was studied in rats. The vitamin A status of pregnant rats was varied by supplying low, medium and adequate amounts (6, 40, and 100 μg retinol/day/kg body weight, respectively) of vitamin A during pregnancy and suckling. The maternal vitamin A restriction caused an altered brain development in terms of tissue weight, DNA, RNA and protein levels, and biosynthesis of DNA and protein from [3H]-thymidine and [3H]-leucine, respectively. A dose-dependent effect of maternal vitamin A restriction on the metabolism of DNA, RNA and protein was noticed in the developing fetal brain of rats.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02027317
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  • 10
    Electronic Resource
    Electronic Resource
    Effects of p-chlorophenylalanine on microvascular permeability changes in spinal cord trauma (1990)
    Springer
    Acta neuropathologica 79 (1990), S. 595-603 
    Details
    ISSN: 1432-0533
    Keywords: Trauma ; Spinal cord injury ; Microvascular permeability ; Serotonin ; p-Chlorophenylalanine (p-CPA)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The possibility that serotonin can take part in the initiation of the increased microvascular permeability occurring in a spinal cord trauma was investigated in a rat model with 131I-sodium and lanthanum as tracers. We influenced the serotonin content in the tissue pharmacologically by treating animals with a serotonin synthesis inhibitor, p-chlorophenylalanine (p-CPA), before the production of the injury and compared the results with injured, untreated controls. A small incision was made in the dorsal horn of the lower thoracic cord. It caused a progressive extravasation of 131I-sodium in the damaged segment, measured after 1,2 and 5 h. Rostral and caudal segments also showed a significant but lower accumulation of 131I-sodium. Lanthanum added to the fixative was used as an ionic tracer detectable by electron microscopy. The endothelial cells of microvessels removed from the perifocal region after 5 h showed a marked increase in the number of lanthanum-filled vesicles. Many endothelial cells had a diffuse penetration of the tracer into the cytoplasm and the basement membrane. However, the tight junctions usually remained closed to lanthanum. Pretreatment with p-CPA markedly reduced the extravasation of 131I-sodium measured at 5 h in the traumatized cord. At the cellular level, the endothelial vesicles filled with lanthanum approached the condition of uninjured animals. The diffuse infiltration of lanthanum into endothelial cells and its spread into the basement membrane of the vascular wall were usually absent. Our results indicate that serotonin plays a role in the initiation of the increased microvascular permeability which occurs in spinal cord injuries.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00294236
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