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  • 1
    Electronic Resource
    Electronic Resource
    Positron Annihilation Lifetime Study of Irradiated and Deformed Ni (1997)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 255-257 (Sept. 1997), p. 430-432 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/02/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.255-257.430.pdf
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  • 2
    Electronic Resource
    Electronic Resource
    Effect of ischemia and partial outflow obstruction on rat bladder function (1997)
    Springer
    Urological research 25 (1997), S. 207-211 
    Details
    ISSN: 1434-0879
    Keywords: Outflow obstruction ; Rat bladder ; Ischemia ; Detrusor function ; Atherosclerosis ; Benign prostatic hyperplasia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We investigated the effects of ischemia induced by ligation of the bilateral internal iliac arteries following partial outlet obstruction on changes in detrusor function in rat. Rats were divided into three groups: sham-operated control rats, rats with partial outlet obstruction, and rats with obstruction + ischemia. Bladder function was studied by the in vitro organ bath technique 7 days after surgery. The weight of the bladder was significantly increased in both the obstruction and obstruction + ischemia groups. The obstruction + ischemia group exhibited a greater increase in weight. The passive length-tension relationship of detrusor muscle strips showed that tissue elasticity was decreased and the active length-tension relationship demonstrated that the peak response was observed at a shorter tissue length in the obstruction + ischemia group compared with the other two groups. There was no difference in the passive and active length-tension relationships between the control group and the obstruction group. The contractile response to various kinds of stimulation (field stimulation, bethanechol, ATP, and KCl) increased in the obstruction group and decreased in the obstruction + ischemia group. These findings suggest that partial outflow obstruction alone increased bladder contractility in response to stimuli. However, ischemia reduced the contractility and elasticity of the bladder wall.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00941984
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  • 3
    Electronic Resource
    Electronic Resource
    Elevated concentrations of the small stress protein HSP27 in rat renal tumors (1997)
    Springer
    Urological research 25 (1997), S. 173-177 
    Details
    ISSN: 1434-0879
    Keywords: αB crystallin ; Heat shock protein ; Rat ; Kidney neoplasms
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The expression of two small stress proteins, αB crystallin and the 27-kDa heat shock protein (HSP27), was studied quantitatively and immunohistochemically in normal kidney and renal tumors in rats. Levels of αB crystallin in renal cell tumors tended to be higher than in normal kidney (P = 0.07), but with a wide range of values, whereas they were significantly lower in mesenchymal tumors (P 〈 0.0001). In contrast, HSP27 concentrations in both renal cell (mean ± SD: 1790 ± 940 ng/mg protein,n = 15) and mesenchymal (1260 ± 1080 ng/mg protein,n = 10) tumors were significantly higher than the normal kidney value (142 ± 30 ng/mg protein,n = 10,P 〈 0.0001). A positive correlation was found between αB crystallin and HSP27 levels limited to the renal cell tumor case (Pearson's correlation coefficient,r = 0.68,P 〈 0.01). Immunohistochemistry revealed the loops of Henle to be positive for αB crystallin, whereas HSP27 staining was positive in glomerular and interstitial vascular walls and epithelial cells of proximal and distal tubules. Positive immunostaining for αB crystallin was demonstrated in six of nine renal cell tumors (67%) studied and for HSP27 in all of the nine cases (100%).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00941978
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  • 4
    Electronic Resource
    Electronic Resource
    Restoration of rat bladder function following release of short- and long-term partial outflow obstruction (1997)
    Springer
    Urological research 25 (1997), S. 193-197 
    Details
    ISSN: 1434-0879
    Keywords: Release of outflow obstruction ; Rat bladder ; Detrusor function ; Benign prostatic hyperplasia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Detrusor dysfunction does not recover in some patients with benign prostatic hyperplasia (BPH) even after prostate resection. ‘We studied the functional restoration of the rat bladder after release of short- or long-term outflow obstruction. Bladder function was assessed by in vivo infusion cystometry and an in vitro organ bath technique. There were no significant differences in bladder weight and contractile strength induced by stimuli in detrusor muscle strips from obstructed rats and age-matched control rats. After short-term obstruction the whole bladder pressure generated in vitro by field stimulation, bethanechol, ATP, and KCl completely recovered to control levels. In contrast, after long-term obstruction, the whole bladder pressure in response to field stimulation remained significantly lower than in controls. Infusion cystometry variables, including the pressure at which micturition was induced, maximal voiding pressure, capacity, and residual urine volume, were similar between controls and rats subjected to short-term obstruction. However, the maximal voiding pressure after long-term obstruction was significantly less than that of controls.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00941982
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