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A Method to Study the Impact of Chemically-induced Ovarian Failure on Exercise Capacity and Cardiac Adaptation in Mice
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Nanosized titanium dioxide-induced premature ovarian failure is associated with abnormalities in serum parameters in

Fashui Hong1,2,3,4, Ling Wang5

  • 1Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, Huaiyin Normal University, Huaian, People's Republic of China.

International Journal of Nanomedicine
|May 8, 2018
PubMed
Abstract

Insights

Titanium dioxide nanoparticles (TiO2 NPs) exposure can cause premature ovarian failure (POF) in female mice by altering hormones and autoimmunity markers. Consumers should exercise caution when using TiO2 NP-containing products.

Area of Science:

  • Nanotechnology
  • Toxicology
  • Reproductive Science

Background:

  • Titanium dioxide nanoparticles (TiO2 NPs) are prevalent in consumer products like food, cosmetics, and sunscreens.
  • Previous studies link TiO2 NP exposure to ovarian damage and reduced fertility in animal models.
  • The impact of TiO2 NPs on premature ovarian failure (POF) remains under-investigated.

Purpose of the Study:

  • To investigate the effects of TiO2 nanoparticle exposure on the development of premature ovarian failure (POF).
  • To examine alterations in serum hormone levels and autoimmunity markers associated with POF following TiO2 NP exposure.

Main Methods:

  • Female mice were administered varying doses (2.5, 5, or 10 mg/kg) of TiO2 NPs daily via gavage for 30 days.
  • Serum samples were analyzed to measure key reproductive hormones and autoimmunity indicators.

Main Results:

  • TiO2 NP exposure led to the development of POF in female mice.
  • Significant reductions in estradiol, progesterone, and inhibin B were observed.
  • Elevated levels of luteinizing hormone, follicle-stimulating hormone, anti-Müllerian hormone, thyroid hormones, and autoantibodies (anti-nuclear and anti-thyroid peroxidase) were detected.

Conclusions:

  • TiO2 nanoparticle exposure induces POF through disruption of hormonal balance and promotion of autoimmunity.
  • Findings underscore the need for caution regarding the handling and use of TiO2 NPs by female consumers.
Keywords:
autoimmunity levelsmicepremature ovarian failureserum hormone levelstitanium dioxide nanoparticles

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