An American medical researcher and urologist, Ramasamy is known for academic contributions to reproductive medicine, including testosterone deficiency, regenerative therapy, erectile dysfunction, and prostate cancer studies.[8][1] Ramasamy has co-authored a significant number of publications in the domain of male infertility and sexual dysfunction.[9][10] Ramasamy is a recipient of the American Society for Reproductive Medicine Award.[11]
Since 2005, Ramasamy has contributed to medical research and publications in medical journals on the subject of Leydig stem cells, Testosterone Deficiency, Regenerative therapy, erectile dysfunction, prostate cancer, among others.[8] His main research areas of interests are in male infertility and sexual dysfunction.[10][9][14]
In 2020-21, Ramasamy contributed to research of coronavirus impact on male fertility and sexually transmitted diseases.[15][16][17][18]
Ramasamy has been among the first urology specialists to research and discover the impact of Covid-19 on male infertility and erectile dysfunction. His work, along with other researchers, has been published in The World Journal of Men's Health,[20] contributed to understanding of the COVID-19 infection and its relation to causing the underlying endothelial dysfunction, a condition in which the small blood vessels fail to perform normally and damage male erectile system.[21][22][16][17]
Ramasamy is also a recipient of the 2019 George Paff Teaching Award of Excellence for teaching urology to Miller School of Medicine students.[23]
Ramasamy also found and validated that males who have recovered from SARS-CoV-2 acute phase are unlikely to be a source for sexual transmissions of SARS-CoV-2. Further investigation into sperm parameters before and after the COVID-19 mRNA vaccine was published in JAMA Network in 2022.[24][25]
In September 2021, based on the previous work "Phase II Randomized, Clinical Trial Evaluating 2 Schedules of Low-Intensity Shockwave Therapy for the Treatment of Erectile Dysfunction",[26] Ramasamy became a principal researcher for the “Combined Shockwave Therapy and Platelet Rich Plasma for the Treatment of Erectile Dysfunction” study that is funded by a three-year grant provided by the National Institutes of Health.[27]
In 2023, Ramasamy received the Gold Cystoscope Award for creative impactful work in andrology, mentorship, clinical scholarship and research.[2][28]
Selected works
"Clinical utility of sperm DNA fragmentation testing: practice recommendations based on clinical scenarios", A Agarwal, A Majzoub, SC Esteves, E Ko, R Ramasamy, A Zini...,Translational Andrology and Urology 5 (6), 935, (2016)
"Successful fertility treatment for Klinefelter's syndrome", R Ramasamy, JA Ricci, GD Palermo, LV Gosden, Z Rosenwaks,...,The Journal of urology 182 (3), 1108-1113, (2009)
"Structural and functional changes to the testis after conventional versus microdissection testicular sperm extraction", R Ramasamy, N Yagan, PN Schlegel..., Urology 65 (6), 1190-1194, (2005)
"The role of estradiol in male reproductive function", M Schulster, AM Bernie, R Ramasamy...,Asian journal of andrology 18 (3), 435, (2016)
"High serum FSH levels in men with nonobstructive azoospermia does not affect success of microdissection testicular sperm extraction", R Ramasamy, K Lin, LV Gosden, Z Rosenwaks, GD Palermo, ..., Fertility and sterility 92 (2), 590-593, (2009)
"Bibliometrics: tracking research impact by selecting the appropriate metrics", A Agarwal, D Durairajanayagam, S Tatagari, SC Esteves, A Harlev, Ranjith Ramasamy,..., Asian journal of andrology 18 (2), 296, (2016)
"Comparison of microdissection testicular sperm extraction, conventional testicular sperm extraction, and testicular sperm aspiration for nonobstructive azoospermia: a systematic review and meta-analysis", AM Bernie, DA Mata, R Ramasamy, PN Schlegel..., Fertility and sterility, 104 (5), 1099-1103. e3, (2015)
"Role of optimizing testosterone before microdissection testicular sperm extraction in men with nonobstructive azoospermia", JE Reifsnyder, R Ramasamy, J Husseini, PN Schlegel..., The Journal of urology 188 (2), 532-537, (2012)
"Microdissection testicular sperm extraction: effect of prior biopsy on success of sperm retrieval", R Ramasamy, PN Schlegel..., The Journal of urology 177 (4), 1447-1449, (2007)
"Effects of low-intensity extracorporeal shockwave therapy on erectile dysfunction: a systematic review and meta-analysis", RI Clavijo, TP Kohn, JR Kohn, R Ramasamy..., The Journal of sexual medicine 14 (1), 27-35, (2017)
"Sperm Parameters Before and After COVID-19 mRNA Vaccination", Daniel C. Gonzalez, Daniel E. Nassau, Kajal Khodamoradi, Emad Ibrahim, Ruben Blachman-Braun, Jesse Ory, Ranjith Ramasamy, JAMA Network 326(3), 273-274, (2021)
"Phase II Randomized, Clinical Trial Evaluating 2 Schedules of Low-Intensity Shockwave Therapy for the Treatment of Erectile Dysfunction", Premal Patel, Jonathan Katz, Soum D Lokeshwar, Manuel Molina, Isildinha M Reis, Raul Clavijo, Ranjith Ramasamy, The Journal of sexual medicine, 8(2):214-222, (2020)
"Testosterone supplementation versus clomiphene citrate for hypogonadism: an age matched comparison of satisfaction and efficacy", Ranjith Ramasamy, Jason M Scovell, Jason R Kovac, Larry I Lipshultz, Comparative Study, 192(3):875-9, (2014)