Andrology

Figure 1. FISH-PNA telomere signals (green) on different stages of sperm maturation (genetic material stained in blue): (A) spermatogonium; (B) primary spermatocyte; (C) sperm cell [in collaboration with CIMAB (Centro de Infertilidad Masculina y Análisis de Barcelona, Spain)]. WHAT ARE TELOMERES? Telomeres are nucleoprotein complexes located at both ends of linear chromosomes. In the case of vertebrates, there are hundreds of tandem repeats of the sequence TTAGGG. Together with their protein complex, telomeres play a very important role in the stability and…

Infertility is considered a clinical condition, defined (by consensus) by the failure to achieve natural pregnancy after one year of unprotected sexual intercourse (1). It implies serious psychological consequences, and so it results in a stressful experience for infertile couples (2). The prevalence of infertility has increased since 1955, and nowadays it affects at least 15% of couples in reproductive age (1, 2).A series of different factors in lifestyle can be altered in order to enhance the overall welfare. It is important to remember that these factors are ultimately under our own control, because they play a key role in determining our reproductive health and they can positively or negatively affect fertility (1). The concept "quality of life" (QOL) refers to the well-being of individuals, and it is affected by both individual and social factors (3).

CCO. Public Domain It is well known that women age is important for reproduction. The female biological clock is well-defined temporally and biologically, with declining oocyte production when the woman is in her late 30s or early 40s and cessation of menses in the late 40s and early 50s. Whereas woman’s chances to conceive naturally drop sharply, male fertility does not cease abruptly, since androgen production and spermatogenesis continue throughout life. There are some worldwide-known examples of famous personalities who fathered children at an…