Sökning: L773:1879 0712 OR L773:0014 2999
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Silodosin and tadal...
Silodosin and tadalafil have synergistic inhibitory effects on nerve-mediated contractions of human and rat isolated prostates
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- Buono, Roberta (författare)
- IRCCS Osped San Raffaele, Italy
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- Briganti, Alberto (författare)
- IRCCS Osped San Raffaele, Italy
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- Freschi, Massimo (författare)
- IRCCS Osped San Raffaele, Italy
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- Villa, Luca (författare)
- IRCCS Osped San Raffaele, Italy; University of Vita Salute San Raffaele, Italy
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- La Croce, Giovanni (författare)
- IRCCS Osped San Raffaele, Italy; Lund University, Sweden
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- Moschini, Marco (författare)
- IRCCS Osped San Raffaele, Italy
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- Benigni, Fabio (författare)
- IRCCS Osped San Raffaele, Italy
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- Castiglione, Fabio (författare)
- University of Vita Salute San Raffaele, Italy; Lund University, Sweden
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- Montorsi, Francesco (författare)
- IRCCS Osped San Raffaele, Italy; University of Vita Salute San Raffaele, Italy
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- Hedlund, Petter (författare)
- Lund University,Lunds universitet,Östergötlands Läns Landsting,Linköpings universitet,Avdelningen för läkemedelsforskning,Hälsouniversitetet,Klinisk farmakologi,Avdelningen för klinisk kemi och farmakologi,Institutionen för laboratoriemedicin,Medicinska fakulteten,Division of Clinical Chemistry and Pharmacology,Department of Laboratory Medicine,Faculty of Medicine
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(creator_code:org_t)
- Elsevier, 2014
- 2014
- Engelska.
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Ingår i: European Journal of Pharmacology. - : Elsevier. - 0014-2999 .- 1879-0712. ; 744, s. 42-51
- Relaterad länk:
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http://www.ncbi.nlm....
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http://dx.doi.org/10...
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Abstract
Ämnesord
Stäng
- Lower urinary tract symptoms (CUTS) in men with benign prostatic hyperplasia (BPH) are associated with erectile dysfunction. Alpha-1-adrenoceptor antagonists are effective drugs for treating symptomatic BPH. Clinical data show improvements in LUIS by phosphodiesterase 5 inhibitors. This study aimed to evaluate effects of siloclosin, a highly selective alpha(1A)-adrenoceptor antagonist, alone or in combination with the phosphocliesterase 5 inhibitor tadalafil on contractions of isolated human and rat prostates. In organbath studies, effects of increasing concentrations of siloclosin (1 nM-1 mu M) and tadalafil (100 nM-100 mu M) on contractions by electrical field stimulation or phenylephrine of human and rat prostate strip preparations were investigated. The combination silodosin and tadalafil reduced electrically-induced contractions of human prostate preparations better than single drugs alone. At any frequencies (1-32 Hz), inhibitory effects of combined therapy (P-values vs single drug) in human tissue were 26-42% (1 nM silodosin+100 nM tadalafil; P less than 0.05), 40-58% (10 nM silodosin+1 mu M tadalafil; P less than 0.001-0.05), 56-67% (100 nM silodosin+10 mu M tadalafil; P less than 0.01-0.05), and 33-55% (1 mu M silodosin+100 mu M tadalafil P less than 0.01-0.05), Similar findings were obtained in rat prostate preparations. In human and rat prostate tissue, the drug combination exerted similar inhibitory effect on phenylephrine contractions as silodosin alone. Silodosin plus tadalafil had greater potency than each drug alone to inhibit prostate contractions to electrical field stimulation but not to phenylephrine. This study supports the clinical application of a combination of an (alpha(1A)-adrenoceptor antagonist and a phosphodiesterase 5 inhibitor for symptomatic BPH and suggests that the drug combination requires endogenous nerve-activity for optimal effect.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Farmakologi och toxikologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Pharmacology and Toxicology (hsv//eng)
Nyckelord
- Alfa-1A-adrenoceptor; Phosphodiesterase 5; Inhibition; Contraction; Prostate; Smooth muscle
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Buono, Roberta
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Briganti, Albert ...
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Freschi, Massimo
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Villa, Luca
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La Croce, Giovan ...
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Moschini, Marco
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Benigni, Fabio
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Castiglione, Fab ...
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Montorsi, France ...
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Hedlund, Petter
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