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◆Human Male Sexuality: Endocrine Disruption and Male Reproductive Wellness

(2020/02/14)
Human Male Sexuality: Endocrine Disruption and Male Rep・・・
Human Male Sexuality: Endocrine Disruption and Male Reproductive Wellness

9.1 Introduction

Male sexuality is decided genetically during the time of fertilization because of the existence of the Y chromosome when you look at the spermatozoan because it fuses with all the X-chromosome-containing ovum, together with sex-determining area regarding the Y chromosome (SRY) then drives the bipotential gonad of this embryo to be a testis through hormone-independent mechanisms 1,2. Nonetheless, after the very early testis is created, growth of the total male phenotype, including further testicular development (masculinization), becomes entirely influenced by a complex system of hormonal signals, specially hormones secreted through the testes 2. People who lack any gonads are phenotypically female 1 and intervention that is endocrine needed to alter the standard feminine phenotype to be male 2. This is why both development and upkeep of masculinization susceptible to endocrine-disrupting influences at all developmental phases from very very early embryo to adulthood; in particular, interruption of very very very early embryonic developmental procedures might have consequences for male reproductive health in adult life 2. This chapter will deal with the results of endocrine interruption for growth of the tract that is urogenital for sperm production. It'll talk about the cap cap cap ability of endocrine-disrupting chemicals (EDCs) to carry about improper breast development (gynecomastia), alterations to puberty, and hyperplasia in prostatic tissue ( Figure 9.1 ). Dilemmas surrounding the introduction of cancers in reproductive cells (prostate cancer, testicular cancer, cancer of the breast) is going to be talked about in Chapter 10. (さらに…)

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