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Related Concept Videos

Spermatogenesis01:41

Spermatogenesis

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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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Meiosis II01:57

Meiosis II

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Meiosis II is the second and final stage of meiosis. It relies on the haploid cells produced during meiosis I, each of which contain only 23 chromosomes—one from each homologous initial pair. Importantly, each chromosome in these cells is composed of two joined copies, and when these cells enter meiosis II, the goal is to separate such sister chromatids using the same microtubule-based network employed in other division processes. The result of meiosis II is two haploid cells, each...
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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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Testosterone: Functions and Regulation01:26

Testosterone: Functions and Regulation

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The intricate hormonal interplay essential for male reproductive health begins with the release of gonadotropin-releasing hormone (GnRH) by the hypothalamus. This hormone prompts the pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). LH targets the Leydig cells in the testes, stimulating them to produce and release testosterone. In concert with testosterone, FSH acts on the Sertoli cells within the seminiferous tubules to facilitate the release of...
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Testes: Histology01:27

Testes: Histology

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A tough, fibrous membrane, the tunica albuginea, covers the testes, extending inward to form fibrous partitions or septa, dividing them into internal compartments called lobules. Each lobule has 1 to 3 tightly coiled seminiferous tubules where sperm production occurs. These tubules merge into a tubular network at the back of the testis, known as the rete testis. It connects to 15 to 20 efferent ductules, leading to the epididymis.
The spermatogenic cells, responsible for producing sperm, are...
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Related Experiment Video

Updated: May 21, 2025

A Seminiferous Tubule Squash Technique for the Cytological Analysis of Spermatogenesis Using the Mouse Model
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Insulin‑like growth factor 2 in spermatogenesis dysfunction (Review).

Pingping Tang1, Jiale Wang1, Xiaohan Tang1

  • 1Clinical Anatomy and Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, P.R. China.

Molecular Medicine Reports
|March 21, 2025
PubMed
Summary

Insulin-like growth factor 2 (IGF2) plays a role in male infertility by influencing inflammation, oxidative stress, ER stress, and obesity. Understanding IGF2

Keywords:
endoplasmic reticulum stressinflammationinsulin‑like growth factor 2obesityoxidative stressspermatogenesis dysfunction

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Area of Science:

  • Reproductive Biology
  • Molecular Endocrinology
  • Male Infertility Research

Background:

  • Spermatogenesis dysfunction involves abnormal sperm parameters and seminiferous tubule damage.
  • Key contributing factors include inflammation, oxidative stress, endoplasmic reticulum (ER) stress, and obesity.
  • Insulin-like growth factor 2 (IGF2) has been implicated in these pathological processes.

Purpose of the Study:

  • To review the relationship between IGF2 and factors contributing to spermatogenesis dysfunction.
  • To explore the role of IGF2 in inflammation, oxidative stress, ER stress, and obesity.
  • To provide evidence for IGF2's potential in managing male infertility.

Main Methods:

  • Literature review of existing theoretical and experimental studies.
  • Analysis of the connection between IGF2 and spermatogenesis dysfunction markers.
  • Synthesis of data on IGF2's influence on inflammation, oxidative stress, ER stress, and obesity.

Main Results:

  • IGF2 is closely associated with inflammation, oxidative stress, ER stress, and obesity.
  • These conditions are significant drivers of spermatogenesis dysfunction.
  • Evidence suggests IGF2 modulates these factors, impacting sperm health.

Conclusions:

  • IGF2 is a critical factor in the pathogenesis of male infertility.
  • Targeting IGF2 may offer a novel therapeutic strategy for spermatogenesis dysfunction.
  • Further research is warranted to elucidate IGF2's precise mechanisms in male reproductive health.