Research Topics
Species | A AgarwalSummaryAffiliation: Cleveland Clinic Foundation Country: USA Publications
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Detail Information
Publications
Mechanism, measurement, and prevention of oxidative stress in male reproductive physiologyAshok Agarwal
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute, and Department of Obstetrics and Gynecology, The Cleveland Clinic Foundation, Ohio, 44195, USA
Indian J Exp Biol 43:963-74. 2005..We have also provided information on oxidative stress in other systems of the body, which may be applied to future research in the field of reproductive biology...
Effect of an isotonic lubricant on sperm collection and sperm qualityAshok Agarwal
Center for Reproductive Medicine, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, Ohio Electronic address
Fertil Steril 99:1581-6. 2013..To assess the influence of an isotonic lubricant used during sperm sample collection on [1] ease of collection and [2] resultant sperm quality...
Role of reactive nitrogen species in male infertilitySejal B Doshi
Center for Reproductive Medicine, Cleveland Clinic, Euclid Avenue, Cleveland, OH, USA
Reprod Biol Endocrinol 10:109. 2012..This article describes both physiological and pathological roles of this unique subset of ROS...
Insight into oxidative stress in varicocele-associated male infertility: part 1Ashok Agarwal
Center for Reproductive Medicine, Glickman Urological and Kidney Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA
Nat Rev Urol 9:678-90. 2012..These responses have their own implications in exacerbating the underlying oxidative stress and on the subsequent infertility...
The effects of oxidative stress on female reproduction: a reviewAshok Agarwal
Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
Reprod Biol Endocrinol 10:49. 2012....
Proteomics: a subcellular look at spermatozoaStefan S du Plessis
Center for Reproductive Medicine, Cleveland Clinic, Cleveland, Ohio, USA
Reprod Biol Endocrinol 9:36. 2011..The aim of this study was to review the current literature on the various proteomic techniques, and their usefulness in diagnosing sperm dysfunction and potential applications in the clinical setting...
Cryopreservation/transplantation of ovarian tissue and in vitro maturation of follicles and oocytes: challenges for fertility preservationAlex C Varghese
Department of Obstetrics and Gynecology, Center for Reproductive Medicine, Glickman Urological and Kidney Institute, Cleveland Clinic, Ohio, USA
Reprod Biol Endocrinol 6:47. 2008..The scope of this article is to take a comprehensively look at the challenges still faced in order for these novel technologies to be routinely employed with the aim of successful fertility preservation...
Factors affecting the outcome of human blastocyst vitrificationAmr A Kader
Center for Reproductive Medicine, Glickman Urological and Kidney Institute, Ob Gyn and Women s Health Institute, Cleveland Clinic, Cleveland, Ohio, USA
Reprod Biol Endocrinol 7:99. 2009..The current information concerning safety and efficacy of the vitrification of blastocysts will be reviewed along with the variables that can impact the outcome of the procedure...
Pathophysiology of cell phone radiation: oxidative stress and carcinogenesis with focus on male reproductive systemNisarg R Desai
Center for Reproductive Medicine, Glickman Urological and Kidney Institute and Obstetrics and Gynecology and Women s Health Institute, Cleveland Clinic, Cleveland, Ohio, USA
Reprod Biol Endocrinol 7:114. 2009....
The association between leukocytes and sperm quality is concentration dependentJakob E Lackner
Department of Urology, KH Hietzing mit Neurologischem Zentrum Rosenhügel and Ludwig Boltzmann Institut für Andrologie und Urologie, Vienna, Austria
Reprod Biol Endocrinol 8:12. 2010..To evaluate the association between leukocytes (polymorphonuclear granulocytes -PMNL) and semen parameters at different leukocyte concentrations...
Relationship between oxidative stress, varicocele and infertility: a meta-analysisAshok Agarwal
Centre for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute, USA
Reprod Biomed Online 12:630-3. 2006..56-216.96, P < 0.00001). From the results, it can be concluded that there is increased oxidative stress in varicocele patients; however, more studies are needed to confirm this finding...
Role of free radicals in female reproductive diseases and assisted reproductionAshok Agarwal
Centre for Advanced Research in Human, Reproduction, Infertility, and Sexual Function, Glickman Urological Institute, The Cleveland Clinic Foundation, 9500 Euclid Avenue, Desk A19 1, Cleveland, OH 44195, USA
Reprod Biomed Online 9:338-47. 2004..Research is in progress to identify the mechanisms that are involved in the aetiology of female reproductive diseases caused by ROS, and to create effective strategies that can counteract oxidative stress...
Inter-sample variability in post-thaw human spermatozoaKiran P Nallella
Center for Advanced Research in Human Reproduction, Infertility and Sexual Function, Glickman Urological Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA
Cryobiology 49:195-9. 2004..Further research is necessary to understand the mechanism(s) responsible for this variability. This may also assist clinicians utilize semen samples with optimum semen quality in ART procedures...
The effect of sperm DNA damage on assisted reproduction outcomes. A reviewA Agarwal
Center for Advanced Research in Human Reproduction, Infertility and Sexual Function, Glickman Urological Institute and Department of Obstetrics and Gynecology, Cleveland Clinic Foundation, OH 44195, USA
Minerva Ginecol 56:235-45. 2004..The results of this evaluation may be used to counsel the couple about their chances for live birth and for genomic abnormalities in their offspring...
Oxidative stress in an assisted reproductive techniques settingAshok Agarwal
Center for Advanced Research in Human Reproduction, Infertility and Sexual Function, Glickman Urological Institute and Department of Obstetrics Gynecology, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
Fertil Steril 86:503-12. 2006..The impact of oxidative stress on ART outcome and the different strategies designed to prevent it are also discussed...
Role of antioxidants in treatment of male infertility: an overview of the literatureAshok Agarwal
Centre for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute and Dept of Obstetrics and Gynecology, Cleveland Clinic Foundation, 9500 Euclid Avenue, Desk A19 1, Cleveland, OH, USA
Reprod Biomed Online 8:616-27. 2004..Multicentre, double-blind studies with statistically accepted sample size are still needed to provide conclusive evidence on the benefit of antioxidants as a treatment modality for patients with male infertility...
Reactive oxygen species as an independent marker of male factor infertilityAshok Agarwal
Center for Advanced Research in Human Reproduction, Infertility and Sexual Function, Glickman Urological Institute and Department of Obstetrics Gynecology, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
Fertil Steril 86:878-85. 2006..To determine the abnormal patterns of reactive oxygen species (ROS) production in male factor infertility (MFI) patients and to define the ROS reference values in such patients...
Carnitines and male infertilityA Agarwal
Department of Obstetrics and Gynecology, The Cleveland Clinic Foundation, 9500 Euclid Avenue, Desk A19 1, Cleveland, OH 44195, USA
Reprod Biomed Online 8:376-84. 2004..Additional, well-designed studies are necessary to further validate the use of carnitines in the treatment of patients with male infertility, specifically in men with poor semen quality...
Automation is the key to standardized semen analysis using the automated SQA-V sperm quality analyzerAshok Agarwal
Reproductive Research Center, Glickman Urological Institute, Cleveland, Ohio 44195, USA
Fertil Steril 87:156-62. 2007..To evaluate the performance of the automated semen quality analyzer system for assessing sperm quality...
The role of free radicals and antioxidants in reproductionAshok Agarwal
Center for Advanced Research in Human Reproduction, Infertility and Sexual Function, Glickman Urological Institute and the Department of Obstetrics Gynecology, Cleveland Clinic, Cleveland, Ohio 44195, USA
Curr Opin Obstet Gynecol 18:325-32. 2006..This review summarizes the role of free radicals and oxidative stress in the pathophysiology of human reproduction...
Chemiluminescence technique for measuring reactive oxygen speciesAshok Agarwal
Centre for Advanced Research in Human Reproduction, Infertility and Sexual Function, Glickman Urological Institute and Department of Obstetrics Gynecology, Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH 44195, USA
Reprod Biomed Online 9:466-8. 2004..A wide range of luminometers are available in the market, and laboratories should select the instruments that suit their individual needs...
Role of oxidative stress in female reproductionAshok Agarwal
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute and Department of Obstetrics Gynecology, The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
Reprod Biol Endocrinol 3:28. 2005..Serial measurement of oxidative stress biomarkers in longitudinal studies may help delineate the etiology of some of the diosorders in female reproduction such as preeclampsia...
Correlation of reactive oxygen species levels with the fertilization rate after in vitro fertilization: a qualified meta-analysisAshok Agarwal
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute, Department of Obstetrics Gynecology, The Cleveland Clinic Foundation, Cleveland, OH 44195, USA
Fertil Steril 84:228-31. 2005..We conclude that ROS has a statistically significant effect on the fertilization rate after IVF, and that the measurement of ROS levels in semen specimens before IVF may be useful in predicting the IVF outcome and in counseling patients...
Prevention of oxidative stress injury to spermAshok Agarwal
Center for Advanced Research in Human Reproduction, Infertility and Sexual Function, Glickman Urological Institute, The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
J Androl 26:654-60. 2005
Oxidative stress, DNA damage and apoptosis in male infertility: a clinical approachAshok Agarwal
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute, Department of Obstetrics and Gynecology, The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
BJU Int 95:503-7. 2005
Implications of systemic malignancies on human fertilityAshok Agarwal
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute and Department of Obstetrics Gynecology, The Cleveland Clinic Foundation, Cleveland, OH 44195, USA
Reprod Biomed Online 9:673-9. 2004..However, there are some ethical issues that should be considered before offering patients any of these options...
Role of oxidative stress in the pathophysiological mechanism of erectile dysfunctionAshok Agarwal
Center for Advanced Research in Human Reproduction, Infertility and Sexual Function, Glickman Urological Institute, The Cleveland Clinic Foundation, 9500 Euclid Ave, OH 44195, USA
J Androl 27:335-47. 2006
Sperm DNA damage assessment: a test whose time has comeAshok Agarwal
Center for Advanced Research in Human Reproduction, Infertility and Sexual Function, Glickman Urological Institute, Department of Obstetrics and Gynecology, The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
Fertil Steril 84:850-3. 2005..The available tests of sperm DNA damage require additional large-scale clinical trials before their integration into routine clinical practice...
Oxidative stress and its implications in female infertility - a clinician's perspectiveAshok Agarwal
Centre for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Department of Obstetrics Gynecology and Glickman Urological Institute, The Cleveland Clinic Foundation, OH 44195, USA
Reprod Biomed Online 11:641-50. 2005..This review discusses the sources of ROS in media used in IVF-embryo transfer and strategies to overcome OS in oocyte in-vitro maturation, in-vitro culture and sperm preparation techniques...
Effect of cell phone usage on semen analysis in men attending infertility clinic: an observational studyAshok Agarwal
Reproductive Research Center, Glickman Urological Institute and Department of Obstetrics Gynecology, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
Fertil Steril 89:124-8. 2008..To investigate the effect of cell phone use on various markers of semen quality...
Effect of vaginal lubricants on sperm motility and chromatin integrity: a prospective comparative studyAshok Agarwal
Reproductive Research Center, Glickman Urological Institute and Department of Obstetrics Gynecology, Cleveland Clinic, Cleveland, Ohio 44195, USA
Fertil Steril 89:375-9. 2008..To evaluate the effect of vaginal lubricants Pre-Seed, FemGlide, Astroglide, and Replens on human sperm motility and chromatin integrity...
The role of antioxidant therapy in the treatment of male infertilityAshok Agarwal
Center for Reproductive Medicine, Glickman Urological and Kidney Institute and Ob Gyn and Women s Health Institute, Cleveland Clinic, Cleveland, Ohio, USA
Hum Fertil (Camb) 13:217-25. 2010....
Potential biological role of poly (ADP-ribose) polymerase (PARP) in male gametesAshok Agarwal
Center for Reproductive Medicine, Cleveland Clinic, Cleveland, OH, USA
Reprod Biol Endocrinol 7:143. 2009..PARP could provide new strategies to preserve fertility in cancer patients subjected to genotoxic stresses and may be a key to better male reproductive health...
Vitrification of isolated mice blastomeres using a closed loading deviceAmr Kader
Center for Reproductive Medicine, Glickman Urological and Kidney Institute and Obstetrics and Gynecology and Women s Health Institute, Cleveland Clinic, Cleveland, Ohio, USA
Reprod Biol Endocrinol 7:17. 2009..Using a cryotip and propagation in microvolumes, isolated mice blastomeres were vitrified and warmed with 100% post-warming survival...
Role of oxidative stress in pathogenesis of varicocele and infertilityAshok Agarwal
Center for Reproductive Medicine, Glickman Urological and Kidney Institute and Obstetrics Gynecology and Women s Health Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA
Urology 73:461-9. 2009..We conclude that spermatozoal dysfunction in varicocele patients could be multifactorial, and oxidative stress-induced injury appears to be one of the main causes...
What an andrologist/urologist should know about free radicals and whyAshok Agarwal
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute, Cleveland, Ohio 44195, USA
Urology 67:2-8. 2006
Effects of radiofrequency electromagnetic waves (RF-EMW) from cellular phones on human ejaculated semen: an in vitro pilot studyAshok Agarwal
Center for Reproductive Medicine, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA
Fertil Steril 92:1318-25. 2009..To evaluate effects of cellular phone radiofrequency electromagnetic waves (RF-EMW) during talk mode on unprocessed (neat) ejaculated human semen...
Role of oxidants in male infertility: rationale, significance, and treatmentAshok Agarwal
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Urological Institute, and Department of Obstetrics Gynecology, The Cleveland Clinic Foundation, Desk A 19 1, 9500 Euclid Avenue, Cleveland, OH 44195, USA
Urol Clin North Am 29:817-27. 2002..A double-blind, placebo-controlled study underway at the authors' center is evaluating the effects of treating infertile men with a combination of vitamins E and C after adjusting for all causes of controversy...
New semen quality scores developed by principal component analysis of semen characteristicsAshok Agarwal
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Urological Institute and Department of Obstetrics Gynecology, The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
J Androl 24:343-52. 2003..The composite scores can summarize overall SQ and quantity. Both SQ and RQ scores provide meaningful information on the quality of semen specimens for the clinician...
Role of reactive oxygen species in the pathophysiology of human reproductionAshok Agarwal
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Urological Institute and Department of Obstetrics Gynecology, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
Fertil Steril 79:829-43. 2003..To summarize the role of reactive oxygen species (ROS) in the pathophysiology of human reproduction...
Lifestyle and testicular dysfunction: a brief updateAshok Agarwal
Center for Reproductive Medicine, Glickman Urological and Kidney Institute and Obst Gyne and Women s Health Institute, Cleveland Clinic, Cleveland, OH, USA
Biomed Pharmacother 62:550-3. 2008....
Efficacy of varicocelectomy in improving semen parameters: new meta-analytical approachAshok Agarwal
Reproductive Research Center, Glickman Urological Institute, Department of Obstetrics Gynecology, Cleveland Clinic, Cleveland, Ohio 44195, USA
Urology 70:532-8. 2007..To determine the efficacy of varicocelectomy in improving semen parameters...
Emerging technologies for the molecular study of infertility, and potential clinical applicationsAlex C Varghese
DeCode Life Foundation, Kolkata, India
Reprod Biomed Online 15:451-6. 2007..However, their widespread use in laboratories and clinics may not be seen until preliminary studies confirming their safety and effectiveness are published, and until standardized protocols for their utilization are established...
Current and future perspectives on intracytoplasmic sperm injection: a critical commentaryAlex C Varghese
Molecular Research and Investigation Centre, Kolkata, India
Reprod Biomed Online 15:719-27. 2007..Since new studies on ICSI are published regularly, it is important that the established protocol is revised often, and that the role of ICSI in infertility therapy is continually re-evaluated...
Clinical relevance of oxidative stress in male factor infertility: an updateAshok Agarwal
Department of Obstetrics Gynecology, Cleveland Clinic, Cleveland, OH 44195, USA
Am J Reprod Immunol 59:2-11. 2008..The benefits of incorporating antioxidants in clinical and experimental settings have been enumerated. We also highlight the emerging concept of utilizing OS as a method of contraception and the potential problems associated with it...
Redox considerations in female reproductive function and assisted reproduction: from molecular mechanisms to health implicationsAshok Agarwal
Reproductive Research Center, Department of Obstetrics and Gynecology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA
Antioxid Redox Signal 10:1375-403. 2008..Although antioxidants such as folate, zinc, and thiols may help enhance fertility, the available data are contentious and must be evaluated in controlled studies with larger populations...
Role of sperm chromatin abnormalities and DNA damage in male infertilityA Agarwal
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute, The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
Hum Reprod Update 9:331-45. 2003..Therefore, screening for sperm DNA damage may provide useful information in cases of male idiopathic infertility and in those men pursuing assisted reproduction. Treatment should include methods for prevention of sperm DNA damage...
Assessing sperm functionAshok Agarwal
Reproductive Research Center, Glickman Urological and Kidney Institute, Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH 44195, USA
Urol Clin North Am 35:157-71, vii. 2008..Finally, promising new tests under development are mentioned with their potential clinical applications...
Evaluation of nuclear DNA damage in spermatozoa from infertile men with varicoceleRamadan A Saleh
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
Fertil Steril 80:1431-6. 2003..To examine levels of sperm DNA damage and oxidative stress (OS) in infertile men with varicocele...
DNA damage in patients with untreated cancer as measured by the sperm chromatin structure assayH Kobayashi
Center for Advanced Research in Human Reproduction and Infertility, Urological Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA
Fertil Steril 75:469-75. 2001..CONCLUSION(S): DNA damage in spermatozoa is prevalent in the majority of cancer patients. SCSA provides important information about the biochemical integrity of sperm DNA in men with cancer before their treatment...
Characterization of subsets of human spermatozoa at different stages of maturation: implications in the diagnosis and treatment of male infertilityM Ollero
Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA
Hum Reprod 16:1912-21. 2001..DNA damage in mature spermatozoa may be the result of oxidative damage by ROS-producing immature spermatozoa during sperm migration from the seminiferous tubules to the epididymis...
Effect of cigarette smoking on levels of seminal oxidative stress in infertile men: a prospective studyRamadan A Saleh
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Urological Institute, The Cleveland Clinic Foundation, Ohio 44195, USA
Fertil Steril 78:491-9. 2002..Given the potential adverse effects of seminal OS on fertility, physicians should advise infertile men who smoke cigarettes to quit...
Differential production of reactive oxygen species by subsets of human spermatozoa at different stages of maturationE Gil-Guzman
Center for Advanced Research in Human Reproduction and Infertility, Urological Institute, The Cleveland Clinic Foundation, Cleveland, OH 44165, USA
Hum Reprod 16:1922-30. 2001....
Varicocelectomy improves intrauterine insemination success rates in men with varicoceleJ A Daitch
Center for Advanced Research in Human Reproduction and Infertility, Urological Institute, Department of Gynecology-Obstetrics and Biostatistics, Cleveland Clinic Foundation, Cleveland, Ohio, USA
J Urol 165:1510-3. 2001..A functional factor not measured on routine semen analysis may affect pregnancy rates in this setting. Men should be screened for varicocele before intrauterine insemination is initiated for male factor infertility...
Oxidative stress in normospermic men undergoing infertility evaluationF F Pasqualotto
Center for Advanced Research in Human Reproduction and Infertility, Urological Institute, Cleveland, Ohio, USA
J Androl 22:316-22. 2001..We conclude that oxidative stress is associated with male factor infertility. The presence of oxidative stress in infertile normospermic men may explain previously unexplained cases of infertility otherwise attributed to female factors...
Relationship between seminal white blood cell counts and oxidative stress in men treated at an infertility clinicR K Sharma
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Urological Institute, Cleveland Clinic Foundation, Ohio 44195, USA
J Androl 22:575-83. 2001..Complete removal of WBCs from semen samples used for assisted reproduction may help reduce oxidative stress...
A red palm oil diet can reduce the effects of oxidative stress on rat spermatozoaY G Aboua
Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Bellville, South Africa
Andrologia 44:32-40. 2012..We therefore propose that a daily intake of RPO supplement to the diet might be helpful in protecting males against the adverse effects of high ROS in sperm function and help preserve fertility...
Human sperm DNA integrity in normal and abnormal semen samples and its correlation with sperm characteristicsA C Varghese
Fertility Clinic and IVF Department, AMRI Medical Centre, Kolkata, India
Andrologia 41:207-15. 2009..Sperm assessment for DNA status using AO is reliable and shows good correlation with sperm count, motility and morphology. Assessment of sperm DNA status with AO staining may be helpful prior to ART...
Evaluation of post-thaw DNA integrity of mouse blastocysts after ultrarapid and slow freezingAmr Kader
Center for Reproductive Medicine, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH 44195, USA
Fertil Steril 91:2087-94. 2009..To evaluate the effect of vitrification and two other methods of slow cryopreservation on DNA integrity in expanded and nonexpanded blastocysts...
Alterations in mitochondria membrane potential and oxidative stress in infertile men: a prospective observational studyXia Wang
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
Fertil Steril 80:844-50. 2003..45). CONCLUSION(S): Measuring MMP in spermatozoa provides useful information about a man's fertility potential. Increased ROS production by spermatozoa is associated with a decreased MMP...
Increased DNA damage in sperm from leukocytospermic semen samples as determined by the sperm chromatin structure assayJuan G Alvarez
Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
Fertil Steril 78:319-29. 2002..CONCLUSION(S): The increase in chromatin alterations and DNA damage in sperm, as defined by the sperm chromatin structure assay from leukocytospermic samples may be related to alterations in the regulation of spermatogenesis...
Differential growth of human embryos in vitro: role of reactive oxygen speciesMohamed A Bedaiwy
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH 44195, USA
Fertil Steril 82:593-600. 2004..Differential growth of ICSI embryos incubated under identical conditions may be in part due to differences in ROS levels of the culture medium surrounding these embryos...
Oxidative stress & male infertilityKartikeya Makker
Center for Reproductive Medicine, Glickman Urological and Kidney Institute and Obsterics Gynecology and Women s Health Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA
Indian J Med Res 129:357-67. 2009..It also highlights the mechanism of production and the pathophysiology of ROS in relation to the male reproductive system and enumerate the benefits of incorporating antioxidants in clinical and experimental settings...
Lipid peroxidation and antioxidant status in preeclampsia: a systematic reviewSajal Gupta
Glickman Urological and Kidney Institute, Cleveland, OH 44195, USA
Obstet Gynecol Surv 64:750-9. 2009..Preeclampsia is characterized by increased lipid peroxidation and diminished antioxidant capacity; however, there is no consensus as to the extent of these conditions...
Protein supplementation and the incidence of apoptosis and oxidative stress in mouse embryosNavid Esfandiari
Department of Obstetrics and Gynecology, Glickman Urological Institute, Cleveland, Ohio 44195, USA
Obstet Gynecol 105:653-60. 2005..68 and 5.81 +/- 1.11, respectively, P = .001). CONCLUSION: Protein supplementation of culture media improves the hatching rate and reduces reactive oxygen species levels and the incidence of apoptosis in mouse preimplantation embryos...
Clinical relevance of oxidative stress and sperm chromatin damage in male infertility: an evidence based analysisMarcello Cocuzza
Reproductive Research Center, Glickman Urological and Kidney Institute, Department of Obstetrics Gynecology, Cleveland Clinic, Cleveland, Ohio 44195, USA
Int Braz J Urol 33:603-21. 2007..Thus evaluation of seminal ROS levels and extent of sperm DNA damage especially in an infertile male may help develop new therapeutic strategies and improve success of assisted reproductive techniques (ART)...
Sperm DNA damage and its clinical relevance in assessing reproductive outcomeR K Sharma
Center for Advanced Research in Human Reproduction, Infertility and Sexual Function, Glickman Urological Institute, The Cleveland Clinic Foundation, 9500 Euclid Avenue, Desk A19.1, Cleveland, OH 44195, USA
Asian J Androl 6:139-48. 2004..In turn, this may alleviate the financial, social and emotional problems associated with failed ART attempts...
Free radicals: their beneficial and detrimental effects on sperm functionShiva Kothari
Center for Reproductive Medicine, Cleveland Clinic, 9500 Euclid Avenue, Desk A19 1, Cleveland, Ohio 44195, USA
Indian J Exp Biol 48:425-35. 2010..Pathologically, free radicals induce lipid peroxidation, DNA damage and apoptosis of spermatozoa. The present review deals with both the beneficial and detrimental effects of free radicals on sperm function...
Oxidative stress is associated with increased apoptosis leading to spermatozoa DNA damage in patients with male factor infertilityXia Wang
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Department of Obsterics and Gynecology, The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
Fertil Steril 80:531-5. 2003..A positive relationship exists between increased sperm damage by ROS and higher levels of cytochrome c and caspases 9 and 3, which indicate positive apoptosis in patients with male factor infertility...
Negative effects of increased sperm DNA damage in relation to seminal oxidative stress in men with idiopathic and male factor infertilityRamadan A Saleh
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Urological Institute, The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
Fertil Steril 79:1597-605. 2003..Such an increase may be related to high levels of seminal oxidative stress...
Technical and ethical challenges of fertility preservation in young cancer patientsFnu Deepinder
Reproductive Research Center, Glickman Urological and Kidney Institute and Department of Obstetrics Gynecology, The Cleveland Clinic, Cleveland, OH, USA
Reprod Biomed Online 16:784-91. 2008..This review summarizes the technical and ethical challenges of gamete cryopreservation in young cancer patients...
Poor semen quality and ROS-TAC scores in patients with idiopathic infertilityFabio F Pasqualotto
Glickman Urological Institute, The Cleveland Clinic Foundation, Cleveland, Ohio, USA
Urol Int 81:263-70. 2008....
Semen characteristics and sperm DNA fragmentation in infertile men with low and high levels of seminal reactive oxygen speciesReda Mahfouz
Center for Reproductive Medicine, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA
Fertil Steril 94:2141-6. 2010..To examine sperm motility, total antioxidant level (TAC), DNA fragmentation, and medical history in infertile men with high seminal high reactive oxygen species (ROS)...
Present and future fertility preservation strategies for female cancer patientsElena S Georgescu
Center for Reproductive Medicine, Cleveland Clinic, Ohio 44195, USA
Obstet Gynecol Surv 63:725-32. 2008....
Leukocytospermia is associated with increased reactive oxygen species production by human spermatozoaRamadan A Saleh
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Urological Institute, The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
Fertil Steril 78:1215-24. 2002..Such stimulation may be mediated via direct cell-cell contact or by soluble products released by leukocytes. Poor sperm quality in leukocytospermic samples may be due to leukocyte-mediated oxidative stress...
Male gamete survival at stake: causes and solutionsAlex C Varghese
Reproductive Research Centre, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, Ohio, USA
Reprod Biomed Online 17:866-80. 2008..This review aims to include all the possible causes of disruption to this unique cell and their probable solutions, in the hope of clearing up the ambiguity that surrounds male factor infertility...
Relationship between ROS production, apoptosis and DNA denaturation in spermatozoa from patients examined for infertilityMohamed H Moustafa
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute, The Cleveland Clinic Foundation, Cleveland, OH, USA
Hum Reprod 19:129-38. 2004..57 (0.18-0.97)]. CONCLUSIONS: DNA damage may be induced by oxidative assault. Apoptosis may not contribute significantly to the DNA damage...
Identification of male factor infertility using a novel semen quality score and reactive oxygen species levelsKiran P Nallella
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute, Cleveland, Ohio, USA
Clinics 60:317-24. 2005..Because both of these parameters are more sensitive than individual sperm parameters in identifying male factor infertility, they should be included in routine infertility screening...
Relationship of interleukin-6 with semen characteristics and oxidative stress in patients with varicoceleKiran P Nallella
Center for Advanced Research in Human Reproduction, Infertility and Sexual Function, Glickman Urological Institute and Department of Obstetrics and Gynecology, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
Urology 64:1010-3. 2004..Pro-inflammatory cytokine IL-6 and oxidative stress may play a role in the pathophysiology of infertility in these patients...
Effect of oxidative stress in follicular fluid on the outcome of assisted reproductive proceduresEleonora B Pasqualotto
Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
Fertil Steril 81:973-6. 2004..CONCLUSION(S): Both LPO and TAC levels were positively correlated with the pregnancy rate. Lipid peroxidation may be a good marker of metabolic activity within the follicle, and some amounts may be necessary to establish a pregnancy...
Human sperm superoxide anion generation and correlation with semen quality in patients with male infertilityTamer M Said
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute and Department of Obstetrics and Gynecology, The Cleveland Clinic Foundation, OH 44195, USA
Fertil Steril 82:871-7. 2004..36-1). CONCLUSION(S): Spermatozoa from infertile men produce higher levels of O(2)(.-) in the presence of exogenous NADPH compared to healthy donors. The ability of spermatozoa to generate O(2)(.-) increases as the semen quality declines...
Role of total antioxidant capacity in the differential growth of human embryos in vitroMohamed Bedaiwy
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
Fertil Steril 86:304-9. 2006..Decreased embryonic fragmentation, enhanced cleavage rate, and increased blastocyst development rate may be partially related to day 1 TAC in the culture media. Whether this relationship is a cause or effect needs further assessment...
Role of oxidative stress in endometriosisSajal Gupta
Centre for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute and Department of Obstetrics-Gynecology, The Cleveland Clinic Foundation, OH, USA
Reprod Biomed Online 13:126-34. 2006..Results of the limited number of animal and human trials need to be corroborated by larger randomized controlled trials...
p53 controls both the G2/M and the G1 cell cycle checkpoints and mediates reversible growth arrest in human fibroblastsM L Agarwal
Department of Molecular Biology, Cleveland Clinic Foundation, OH 44195, USA
Proc Natl Acad Sci U S A 92:8493-7. 1995..Therefore, irreversible arrest must involve processes other than or in addition to the interaction of p53-induced p21/WAF1 with G1 and G2 cyclin-dependent kinases...
Serum and peritoneal abnormalities in endometriosis: potential use as diagnostic markersS Gupta
Reproductive Research Center, Glickman Urological Institute, Cleveland Clinic, Cleveland, OH 44195, USA
Minerva Ginecol 58:527-51. 2006..Potential new therapeutic agents include modulators, such as cytokine receptor blockers and angiogenic receptor blockers, presently used for treating endometriosis...
Pathophysiology of varicoceles in male infertilityC K Naughton
Center for Advanced Research in Human Reproduction and Infertility, Department of Urology, The Cleveland Clinic Foundation, Ohio 44195, USA
Hum Reprod Update 7:473-81. 2001....
Regulation of p53 expression by the RAS-MAP kinase pathwayM L Agarwal
Lerner Research Institute, The Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, Ohio, OH 44195, USA
Oncogene 20:2527-36. 2001..We conclude that MAP kinase-dependent pathways help to regulate p53 levels by regulating the expression of p53 mRNA...
Relationship of interleukin-6 with semen characteristics and oxidative stress in vasectomy reversal patientsK C Nandipati
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Glickman Urological Institute and Department of Obstetrics and Gynecology, Cleveland Clinic Foundation, Cleveland, OH 44195, USA
Andrologia 37:131-4. 2005..41, P = 0.05 versus r = 0.38, P = 0.15). We conclude that patients who undergo vasectomy reversal have elevated levels of IL-6 and ROS, which may contribute to decreased sperm motility and concentration and possibly lead to sub-fertility...
Relationship of reactive oxygen species levels in day 3 culture media to the outcome of in vitro fertilization/intracytoplasmic sperm injection cyclesMohamed A Bedaiwy
Department of Obstetrics and Gynecology, University Hospitals Case Medical Center, Case Western Reserve University, Cleveland, Ohio 44195, USA
Fertil Steril 94:2037-42. 2010..To examine the relationship of early human embryonic development parameters to day 3 reactive oxygen species (D-3 ROS) levels in culture media...
Reactive oxygen species levels are independent of sperm concentration, motility, and abstinence in a normal, healthy, proven fertile man: a longitudinal studyNisarg R Desai
Center for Reproductive Medicine, Cleveland Clinic, Cleveland, Ohio 44195, USA
Fertil Steril 94:1541-3. 2010..We suggest that fluctuation in seminal ROS values may be related to physiologic or transient changes in spermatogenesis...
Effect of varying equilibration time in a two-step vitrification method on the post-warming DNA integrity of mouse blastocystsAmr Kader
Center for Reproductive Medicine, Glickman Urological and Kidney Institute, and Obstetrics and Gynecology and Women s Health Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA
Fertil Steril 93:2640-5. 2010..To assess the effect of equilibration time on the DNA integrity of vitrified-warmed mouse blastocysts...
Current trends, biological foundations and future prospects of oocyte and embryo cryopreservationAlex C Varghese
Center for Reproductive Medicine, Cleveland Clinic, Cleveland, Ohio, USA
Reprod Biomed Online 19:126-40. 2009..The transcriptomics, proteomics and metabolomic platforms hold promise for elucidating these complex processes during cryopreservation processes...
Evaluation of poly(ADP-ribose) polymerase cleavage (cPARP) in ejaculated human sperm fractions after induction of apoptosisReda Z Mahfouz
Reproductive Research Center, Glickman Urological and Kidney Institute, Department of Obstetrics and Gynecology, Cleveland Clinic, Cleveland, Ohio 44195, USA
Fertil Steril 91:2210-20. 2009..To examine the presence of cleaved poly(ADP-ribose) polymerase(s) (cPARP) in ejaculated spermatozoa and determine cPARP levels following exposure to chemical or oxidative stress...
The impact of peritoneal fluid from healthy women and from women with endometriosis on sperm DNA and its relationship to the sperm deformity indexGihan Mansour
Obstetrics and Gynecology and Women s Health Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA
Fertil Steril 92:61-7. 2009..To study the effect of peritoneal fluid (PF) from healthy women and from women with endometriosis on sperm DNA and its relationship to sperm morphology as assessed by the sperm deformity index (SDI)...
New generation of diagnostic tests for infertility: review of specialized semen testsMary K Samplaski
Glickman Urological and Kidney Institute, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
Int J Urol 17:839-47. 2010..This article reviews basic male reproductive physiology, as well as clinically utilized advanced seminal tests, including their methodology and implications for reproductive technology outcomes and fecundity...
Vitamin C and vitamin E supplementation reduce oxidative stress-induced embryo toxicity and improve the blastocyst development rateXia Wang
Department of Obstetrics and Gynecology, Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, Cleveland, Ohio 44195, USA
Fertil Steril 78:1272-7. 2002..Exposure of mouse embryos to ROS for extended periods results in embryotoxicity. Vitamin C is more effective than vitamin E in reversing ROS-induced mouse embryo toxicity...
Human sperm DNA oxidation, motility and viability in the presence of L-carnitine during in vitro incubation and centrifugationS Banihani
Center for Reproductive Medicine, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH 44195, USA
Andrologia 44:505-12. 2012..In conclusion, LC may enhance sperm motility following incubation and centrifugation, while it might not affect sperm viability and DNA oxidation...
Superovulation and intrauterine insemination in cases of treated mild pelvic diseaseM Singh
Center for Advanced Research in Human Reproduction and Infertility, Urological Institute and Department of Gynecology-Obstetrics, Cleveland Clinic Foundation, 9500 Euclid Avenue, A81, Cleveland, Ohio 44195, USA
J Assist Reprod Genet 18:26-9. 2001..However, SO/IUI still remains a reasonable option for both these groups prior to IVF-ET...
Prediction of endometriosis with serum and peritoneal fluid markers: a prospective controlled trialM A Bedaiwy
Center for Advanced Research in Human Reproduction, Infertility, and Sexual Function, The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
Hum Reprod 17:426-31. 2002..Before these markers can be used as a non-surgical diagnostic tool, these data should be verified in a larger study...
Early combination therapy: intracavernosal injections and sildenafil following radical prostatectomy increases sexual activity and the return of natural erectionsK Nandipati
Glickman Urological Institute, Cleveland Clinic Foundation, Cleveland, OH 44125, USA
Int J Impot Res 18:446-51. 2006..Early combination therapy with sildenafil allowed a lower dose of intracavernous injections, minimizing the penile discomfort...
Management of erectile dysfunction following radical prostatectomyC D Zippe
Andrology Urology Research Laboratory, Urological Institute, The Cleveland Clinic Foundation, 9500 Euclid Avenue, A100, Cleveland, OH 44195, USA
Curr Urol Rep 2:495-503. 2001..The potential impact of sildenafil and other new oral therapies should encourage urologists to continue to perform and perfect the nerve-sparing approach...
