The work proposed in this application is designed to increase our basic and clinical knowledge of reproductive processes in the male with particular relevance to contraception. The focus of our work is on the biochemical, hormonal and genetic control of mammalian spermatogenesis, including applied studies in normal men, with the goal of developing new, clinically approved contraceptives for men throughout the world. We have four research projects: 1) Novel ALDH1a2 Inhibitors for Male Contraception (Dr. J. Amory, P.I.);2) Retinaldehyde Dehydrogenases as Male Contraceptive Targets (Dr. M. Griswold, P.I.);3) Spermatogonial Stem Cell Self-Renewal and Differentiation (Dr. R. Braun, P.I.);and 4) Effects of Male Hormonal Contraceptives on Risk Factors for Cardiovascular Disease (Dr. S. Page, P.I.). We also propose an Administration Core Unit, which includes a Program for Fellows and New Investigators. Our proposal incorporates the talents of outstanding investigators of varied backgrounds and professional training into an interactive research program in reproductive biology. We have structured this Center to meld superb science with the practical goal of applying new basic knowledge as quickly as possible to studies in human beings. We hope that, in this way, our work will address critical needs of society.
World population continues to increase at a frightening rate, particularly in developing countries, and is predicted to double over the next several decades. One-quarter of all pregnancies are unwanted, resulting in millions of births of unwanted babies, unsafe abortions and maternal deaths. With the known willingness of men to use contraceptives and substantial problems with existing female methods, the development of new, effective, safe, reversible male contraceptives is an extremely important societal goal. Our coordinated, multidisciplinary research program is designed to focus the best science on achieving it.
|Griswold, Michael D (2016) Spermatogenesis: The Commitment to Meiosis. Physiol Rev 96:1-17|
|Kocarnik, Beverly M; Boyko, Edward J; Matsumoto, Alvin M et al. (2016) Baseline estradiol concentration in community-dwelling Japanese American men is not associated with intra-abdominal fat accumulation over 10 years. Obes Res Clin Pract 10:624-632|
|Arnold, Samuel L; Stevison, Faith; Isoherranen, Nina (2016) Impact of Sample Matrix on Accuracy of Peptide Quantification: Assessment of Calibrator and Internal Standard Selection and Method Validation. Anal Chem 88:746-53|
|Chao, Jing; Rubinow, Katya B; Kratz, Mario et al. (2016) Short-Term Estrogen Withdrawal Increases Adiposity in Healthy Men. J Clin Endocrinol Metab 101:3724-3731|
|Chen, Yao; Ma, Li; Hogarth, Cathryn et al. (2016) Retinoid signaling controls spermatogonial differentiation by regulating expression of replication-dependent core histone genes. Development 143:1502-11|
|Roth, M Y; Page, S T; Bremner, W J (2016) Male hormonal contraception: looking back and moving forward. Andrology 4:4-12|
|Lee, Ada P; Roth, Mara Y; Nya-Ngatchou, Jean-Jacques et al. (2016) Testicular fine-needle aspiration for the assessment of intratesticular hormone concentrations. Asian J Androl 18:21-4|
|Roth, Mara Y; Amory, John K (2016) Beyond the Condom: Frontiers in Male Contraception. Semin Reprod Med 34:183-90|
|Amory, John K (2016) Male contraception. Fertil Steril 106:1303-1309|
|Kent, Travis; Arnold, Samuel L; Fasnacht, Rachael et al. (2016) ALDH Enzyme Expression Is Independent of the Spermatogenic Cycle, and Their Inhibition Causes Misregulation of Murine Spermatogenic Processes. Biol Reprod 94:12|
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