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Related Concept Videos

Infertility in Males01:23

Infertility in Males

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Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...
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Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male...
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Infertility in Females01:28

Infertility in Females

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Female infertility is defined as the inability to conceive after a year of regular, unprotected intercourse and affects about 10–15% of couples worldwide. The primary cause of female infertility is ovulatory disorders, which hinder the release of eggs. These disorders can be classified as hypothalamic amenorrhea, polycystic ovarian syndrome (PCOS), premature ovarian failure, and hyperprolactinemic anovulation disorders.
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Sperm Structure and Semen Composition01:22

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During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...
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Fertilization01:38

Fertilization

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During fertilization, an egg and sperm cell fuse to create a new diploid structure. In humans, the process occurs once the egg has been released from the ovary, and travels into the fallopian tubes. The process requires several key steps: 1) sperm present in the genital tract must locate the egg; 2) once there, sperm need to release enzymes to help them burrow through the protective zona pellucida of the egg; and 3) the membranes of a single sperm cell and egg must fuse, with the sperm...
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Sperm Transport01:15

Sperm Transport

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The journey of sperm from its origin to the point of ejaculation begins within the seminiferous tubules of the testis. Here, Sertoli cells produce fluid that propels non-motile sperm through a series of conduits, starting with the straight tubules leading to the rete testis. This interconnected network of tubules acts as the initial pathway for sperm, guiding them into the efferent ductules and then into the epididymis for maturation.
The maturation phase occurs in the epididymis, where sperm...
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Male Infertility: New Developments, Current Challenges, and Future Directions.

Murat Gül1,2, Giorgio Ivan Russo3,2, Hussein Kandil4,2

  • 1Department of Urology, Selcuk University School of Medicine, Konya, Turkey.

The World Journal of Men'S Health
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Recent advances in male infertility diagnostics and treatments are discussed, including assisted reproductive technologies and novel sperm function tests. Future developments in areas like AI and personalized medicine are also explored.

Keywords:
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Area of Science:

  • Reproductive Medicine
  • Urology
  • Andrology

Background:

  • Significant scientific advances have occurred in male infertility diagnostics and treatment over recent decades.
  • Current management includes assisted reproductive technologies, sperm selection, surgical sperm retrieval, and sperm function tests.
  • Despite progress, there remains a need for further developments in the field.

Purpose of the Study:

  • To review recent advances in the management of male infertility.
  • To discuss emerging diagnostic and therapeutic modalities.
  • To highlight the expanding role of reproductive urologists and the development of andrology.

Main Methods:

  • Review of current literature on male infertility diagnostics and therapeutics.
  • Discussion of novel approaches including seminal oxidative stress testing, sperm DNA fragmentation testing, genetic and epigenetic tests.
  • Exploration of future trends such as genetic manipulations, artificial intelligence, personalized medicine, and telemedicine.

Main Results:

  • Advances encompass assisted reproductive technologies, sperm selection, surgical sperm retrieval, and sperm function tests.
  • Emerging areas for male infertility management include oxidative stress testing, DNA fragmentation analysis, genetic/epigenetic testing, AI, personalized medicine, and telemedicine.
  • The field requires continued research and development for improved patient outcomes.

Conclusions:

  • The management of male infertility has seen substantial progress, with ongoing innovation in diagnostics and treatment.
  • Future directions involve integrating advanced technologies like AI and personalized medicine, alongside expanded roles for reproductive urologists.
  • Further development of andrology as an independent specialty is crucial for addressing complex male infertility issues.