Environmental chemicals from pet foods impact dog fertility

Discussion in 'Biology & Genetics' started by Plazma Inferno!, Aug 10, 2016.

  1. Plazma Inferno! Ding Ding Ding Ding Administrator

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    Adverse temporal trends in human semen quality and cryptorchidism in infants have been associated with exposure to environmental chemicals (ECs) during development. The new study conducted in UK reports that a population of breeding dogs exhibit a 26 year (1988–2014) decline in sperm quality and a concurrent increased incidence of cryptorchidism in male offspring (1995–2014). Environmental chemicals, including diethylhexyl phthalate (DEHP) and polychlorinated bisphenol 153 (PCB153), were detected in adult dog testes and commercial dog foods at concentrations reported to perturb reproductive function in other species. Testicular concentrations of DEHP and PCB153 perturbed sperm viability, motility and DNA integrity in vitro but did not affect LH stimulated testosterone secretion from adult testis explants. The direct effects of chemicals on sperm may therefore contribute to the decline in canine semen quality that parallels that reported in the human.

    http://www.nature.com/articles/srep31281
     

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