Frank Sommer

Summary

Affiliation: University of Cologne
Country: Germany

Publications

  1. ncbi request reprint Comparison of individual urologists' performance
    F Sommer
    Department of Urology, University Medical Centre of Cologne, and Paracelsus Klinik Golzheim, Dusseldorf, Germany
    Eur Urol 39:369-74. 2001
  2. ncbi request reprint [Levitra in a hardness test]
    Frank Sommer
    Klinik und Poliklinik fur Urologie der Universitat zu Koln, Postfach 41 1043, 50870 Köln
    Krankenpfl J 42:120. 2004
  3. ncbi request reprint Future options for combination therapy in the management of erectile dysfunction in older men
    Frank Sommer
    Department of Urology, University Medical Centre Cologne, Cologne, Germany
    Drugs Aging 21:555-64. 2004
  4. ncbi request reprint Lifestyle issues and genitourinary tumours
    Frank Sommer
    Klinik und Poliklinik fur Urologie der Universitat zu Koln, Joseph Stelzmann Str 9, 50931 Koln, Germany
    World J Urol 21:402-13. 2004
  5. ncbi request reprint Epidemiology of Peyronie's disease
    F Sommer
    Department of Urology, University Medical Center of Cologne, Cologne, Germany
    Int J Impot Res 14:379-83. 2002
  6. ncbi request reprint MAP kinase 1/2 (Erk 1/2) and serine/threonine specific protein kinase Akt/PKB expression and activity in the human corpus cavernosum
    F Sommer
    Department of Urology, University Medical Centre of Cologne, Cologne, Germany
    Int J Impot Res 14:217-25. 2002
  7. ncbi request reprint Creative-dynamic image synthesis: a useful addition to the treatment options for impotence
    F Sommer
    Department of Urology, University Medical Center of Cologne, Germany
    Int J Impot Res 13:268-74; discussion 275. 2001
  8. ncbi request reprint Impotence and genital numbness in cyclists
    F Sommer
    Department of Urology, University Medical Center of Cologne, Germany
    Int J Sports Med 22:410-3. 2001
  9. ncbi request reprint [Changes in penile blood flow during cycling--how does one prevent a decreased perfusion?]
    F Sommer
    Klinik und Poliklinik für Urologie der Universität Köln, Germany
    Dtsch Med Wochenschr 126:939-43. 2001
  10. ncbi request reprint Erectile dysfunction in cyclists. Is there any difference in penile blood flow during cycling in an upright versus a reclining position?
    F Sommer
    Department of Urology, University Medical Centre of Cologne, Germany
    Eur Urol 39:720-3. 2001

Collaborators

Detail Information

Publications25

  1. ncbi request reprint Comparison of individual urologists' performance
    F Sommer
    Department of Urology, University Medical Centre of Cologne, and Paracelsus Klinik Golzheim, Dusseldorf, Germany
    Eur Urol 39:369-74. 2001
    ..The purpose of our study was to compare the crude operative morbidity and mortality rates with the predicted rates using an established scoring system (POSSUM)...
  2. ncbi request reprint [Levitra in a hardness test]
    Frank Sommer
    Klinik und Poliklinik fur Urologie der Universitat zu Koln, Postfach 41 1043, 50870 Köln
    Krankenpfl J 42:120. 2004
  3. ncbi request reprint Future options for combination therapy in the management of erectile dysfunction in older men
    Frank Sommer
    Department of Urology, University Medical Centre Cologne, Cologne, Germany
    Drugs Aging 21:555-64. 2004
    ..Preliminary observations of combination therapy have been encouraging and provide a scientific rationale for prospective, randomised clinical trials with adequate numbers of patients...
  4. ncbi request reprint Lifestyle issues and genitourinary tumours
    Frank Sommer
    Klinik und Poliklinik fur Urologie der Universitat zu Koln, Joseph Stelzmann Str 9, 50931 Koln, Germany
    World J Urol 21:402-13. 2004
    ..This survey demonstrates that the individual assessment of lifestyle factors not only may identify groups with an increased risk for urological malignancies but also clearly displays a potential for tumour prevention...
  5. ncbi request reprint Epidemiology of Peyronie's disease
    F Sommer
    Department of Urology, University Medical Center of Cologne, Cologne, Germany
    Int J Impot Res 14:379-83. 2002
    ..Comparably high prevalences are known for diabetes and urolithiasis, suggesting a greater frequency of this rare disease than formerly believed...
  6. ncbi request reprint MAP kinase 1/2 (Erk 1/2) and serine/threonine specific protein kinase Akt/PKB expression and activity in the human corpus cavernosum
    F Sommer
    Department of Urology, University Medical Centre of Cologne, Cologne, Germany
    Int J Impot Res 14:217-25. 2002
    ..Furthermore, we found a higher basal level of active MAP Kinase 1/2 (Erk 1/2) in impotent patients. This finding gives the first evidence for an inhibitory influence of MAP Kinase 1/2 (Erk 1/2) on cavernosal eNOS activity...
  7. ncbi request reprint Creative-dynamic image synthesis: a useful addition to the treatment options for impotence
    F Sommer
    Department of Urology, University Medical Center of Cologne, Germany
    Int J Impot Res 13:268-74; discussion 275. 2001
    ..Creative-dynamic image synthesis is a potent initiator of erections in men with psychogenic erectile dysfunction, has no known side effects and is very cost-effective...
  8. ncbi request reprint Impotence and genital numbness in cyclists
    F Sommer
    Department of Urology, University Medical Center of Cologne, Germany
    Int J Sports Med 22:410-3. 2001
    ..Therefore, we suggest restricting the training distance, and taking sufficient pauses during the course of prolonged and vigorous bicycle riding, in order to avoid penile numbness and impotence...
  9. ncbi request reprint [Changes in penile blood flow during cycling--how does one prevent a decreased perfusion?]
    F Sommer
    Klinik und Poliklinik für Urologie der Universität Köln, Germany
    Dtsch Med Wochenschr 126:939-43. 2001
    ..2 years) transcutaneous penile oxygen pressure (tpO (2)) at the glans penis was measured during cycling in different positions and with different types of saddle, using a modified Clark oxygen electrode...
  10. ncbi request reprint Erectile dysfunction in cyclists. Is there any difference in penile blood flow during cycling in an upright versus a reclining position?
    F Sommer
    Department of Urology, University Medical Centre of Cologne, Germany
    Eur Urol 39:720-3. 2001
    ..Perineal compression during bicycling appears to be responsible for some cases of erectile dysfunction...
  11. ncbi request reprint [Value of cryotherapy in localized prostatic carcinoma]
    F Sommer
    Klinik und Poliklinik fur Urologie, Universitat zu Koln, Joseph Stelzmann Strasse 9, 50924 Köln
    Urologe A 40:185-90. 2001
    ..Control with thermocouples, ultrasound, and double-freeze techniques makes it possible to destroy the whole organ or the region of interest in high-risk patients or in patients who refuse to undergo open surgical procedures...
  12. ncbi request reprint Vardenafil Bayer Yakuhin
    Frank Sommer
    Department of Urology, University Medical Center of Cologne, Germany
    Curr Opin Investig Drugs 3:607-13. 2002
    ..In July 2001, Lehman Brothers predicted a 75% chance that vardenafil would reach the market, and forecast peak sales of US $0.85 billion worldwide; the analyst also speculated that Bayer would seek a comarketing partner [414766]...
  13. ncbi request reprint Cycling and penile oxygen pressure: the type of saddle matters
    Ulrich Schwarzer
    Department of Urology, University Medical Center of Cologne, Germany
    Eur Urol 41:139-43. 2002
    ..The shape of the bicycle saddle could be a factor affecting penile perfusion. The aim of this study is to find out the influence of different saddle designs on penile perfusion...
  14. ncbi request reprint Nitric oxide pathways in human bladder carcinoma. The distribution of nitric oxide synthases, soluble guanylyl cyclase, cyclic guanosine monophosphate, and nitrotyrosine
    Amgad Ehsan
    Department of Urology, University of Wuerzburg, Wuerzburg, Germany
    Cancer 95:2293-301. 2002
    ..The current paper describes the NO/guanylate cyclase (sGC)/cyclic guanosine monophosphate (cGMP) and the NO/oxidative pathways in human bladder tissues...
  15. ncbi request reprint Patients responding to phosphodiesterase type 5 inhibitor therapy: what do their sexual partners know?
    Theodor Klotz
    Department of Urology, Klinikum Weiden, Weiden, Germany
    J Sex Med 4:162-5. 2007
    ..Phosphodiesterase type 5 (PDE5) inhibitors are an efficacious therapy in men with erectile dysfunction (ED). There are only a few studies that also focus on the participating couples during PDE5 inhibitor therapy...
  16. doi request reprint Bicycle riding and erectile dysfunction: a review
    Frank Sommer
    Department of Urology, Institute of Men s Health, University Medical Centre Hamburg Eppendorf, Hamburg, Germany
    J Sex Med 7:2346-58. 2010
    ..For many years, reports in the literature have implicated bicycle riding as causing increased risk of erectile dysfunction (ED). Perineal compression during cycling has been associated with the development of sexual complications...
  17. ncbi request reprint Prospective randomized Phase II trial of pegylated doxorubicin in the management of symptomatic hormone-refractory prostate carcinoma
    Axel Heidenreich
    Department of Urology, University of Cologne, Germany
    Cancer 101:948-56. 2004
    ....
  18. ncbi request reprint Treating erectile dysfunction by endothelial rehabilitation with phosphodiesterase 5 inhibitors
    Frank Sommer
    Department of Men s Health and Clinic of Urology, University Hospital Hamburg Eppendorf, P O Box 202101, 20214, Hamburg, Germany
    World J Urol 23:385-92. 2005
    ..The present review focuses on several recent studies which provide evidence for the beneficial effect of regular PDE5 inhibitor administration on the improvement of EF by rehabilitation of vascular endothelium...
  19. ncbi request reprint Evaluation of tetrahydrobiopterin (BH4) as a potential therapeutic agent to treat erectile dysfunction
    Frank Sommer
    Department of Men s Health, University Medical Center Hamburg Eppendorf, Postfach 202101, Hamburg, DE 20264, Germany
    Asian J Androl 8:159-67. 2006
    ..The endothelial NO synthase (eNOS) coenzyme tetrahydrobiopterin (BH4) converts eNOS-mediated catalytic activity from oxygen radical to NO production, improving endothelial function and vascular smooth muscle relaxation...
  20. ncbi request reprint Potency and selectivity of vardenafil: a phosphodiesterase Type 5 inhibitor
    Frank Sommer
    Department of Men s Health and Department of Urology, University Medical Center Hamburg Eppendorf, Martinistrasse 52, DE 20246 Hamburg, Germany
    Expert Opin Drug Metab Toxicol 1:295-301. 2005
    ..This review will discuss the findings of biochemical, in vitro and in vivo experiments that indicate the superior potency and high selectivity of vardenafil...
  21. ncbi request reprint [Continuous once a day treatment with sildenafil: daily sex prevents the "aging penis"]
    Frank Sommer
    MMW Fortschr Med 145:59. 2003
  22. ncbi request reprint Improved spontaneous erectile function in men with mild-to-moderate arteriogenic erectile dysfunction treated with a nightly dose of sildenafil for one year: a randomized trial
    Frank Sommer
    Department of Men s Health, University Medical Center Hamburg Eppendorf, Hamburg 20214, Germany
    Asian J Androl 9:134-41. 2007
    ..To test the hypothesis that sildenafil (50 mg nightly for one year) can improve spontaneous erectile function (EF) in men with mild-to-moderate arteriogenic erectile dysfunction (ED) responsive to erectogenic treatment...
  23. doi request reprint Long-term treatment of erectile dysfunction with a phosphodiesterase-5 inhibitor and dose optimization based on nocturnal penile tumescence
    Michael J Mathers
    Urological Ambulatory Remscheid, Remscheid, Germany
    BJU Int 101:1129-34. 2008
    ....
  24. doi request reprint Comparable efficacy of once-daily versus on-demand vardenafil in men with mild-to-moderate erectile dysfunction: findings of the RESTORE study
    Jurgen Zumbe
    Klinikum Leverkusen, Leverkusen, Germany
    Eur Urol 54:204-10. 2008
    ..Phosphodiesterase (type) 5 (PDE5) inhibitors are currently administered on demand for treatment of erectile dysfunction (ED). Once-daily dosing has been suggested to benefit patients...
  25. ncbi request reprint Daphnia versus copepod impact on summer phytoplankton: functional compensation at both trophic levels
    Ulrich Sommer
    Institut für Meereskunde, Düsternbrooker Weg 20, 24105, Kiel, Germany
    Oecologia 135:639-47. 2003
    ..10 days. Contrary to the impact of a single functional group, the combined impact of both zooplankton groups led to a substantial decline in total phytoplankton biomass...