Assessment of Dog Testis Perfusion by Colour and Pulsed-Doppler Ultrasonography and Correlation With Sperm Oxidative DNA Damage

Lemos, Helena; Dorado, J.; Hidalgo, M.; Gaivão, Isabel; Martins‐Bessa, Ana

doi:10.1016/j.tcam.2020.100452

Cited by 11 publications

(15 citation statements)

References 25 publications

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“…EDV at the STA was associated with sperm concentration and inversely associated with sperm oxidative DNA damage. Lemos et al [25] Camelid Fertile males exhibited higher values of PSV and EDV at the STA level and higher values of PSV at the MTA level. Kuzler et al [35] There is currently no proposed explanation for the positive relationship between RI and sperm count.…”

Section: Species Relation Between CD Ultrasonography Parameters and Seminal Qualitymentioning

confidence: 92%

“…In 2020, Lemos et al found a relationship between PSV and EDV with sperm concentration as well as an inverse association between RI and PI at the STA with sperm membrane integrity. Additionally, a connection between EDV at the STA level with sperm concentration and an inverse association with sperm oxidative DNA damage were evidenced [25].…”

Section: Relationship Between Spermatogenesis and Doppler Ultrasonography Parametersmentioning

confidence: 94%

“…Several studies have characterized and established reference values of blood flow to the testicles in the dog [18,24,25,47,48]. Zelli et al (2013) discovered a negative connection between PI and RI and the total progressive motility as well as a negative connection with the percentage of membrane intact sperms [47].…”

Section: Relationship Between Spermatogenesis and Doppler Ultrasonography Parametersmentioning

confidence: 99%

“…Pozor and McDonnel (2004) concluded it is possible to characterize the testicular artery by ultrasonography and the importance of its measurement in two locations due to its convoluted course [20]. Following these results, more research was performed in other animal species, establishing physiological parameters of the testicular artery using CD and SD at different locations in stallions [20][21][22], jackass [23], dogs [21,24,25], felines [26], bull [27][28][29], rams [30][31][32][33][34], bucks [9,12] and camelids [35].…”

mentioning

confidence: 99%

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New Approaches to Assess Fertility in Domestic Animals: Relationship between Arterial Blood Flow to the Testicles and Seminal Quality

Velasco

Ruiz

2020

Animals

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The early identification of infertile males improves reproduction efficiency at a production level and is essential to secure high production rates. Before entering a breeding program, males must pass an initial breeding soundness examination (BSE) which consist of several diagnostic exams whose end point is to estimate their future fertility. There is ongoing research to find new markers that allow better identification of fertile males. Doppler mode allows the quantitative and qualitative evaluation of the irrigation of organs. When evaluating the reproductive system, Doppler mode has been successfully used for the evaluation of the uterine and ovarian irrigation. In males, it is gaining relevance for the evaluation of testicular irrigation. Researchers have found a relationship between pulsed-wave Doppler velocimetric parameters and seminal quality in various domestic animal species. This suggests Doppler ultrasound parameters should be considered as objective parameters to evaluate testicular function. In this review, we analyze the results in the main domestic animal species and discuss the differences and similarities among the results. We also discuss the effect of the location of the measurements, breed, season and laterality in the measurement of Doppler velocimetric parameters as well as the impact and limitations of this method of assessing breeding soundness.

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Section: Species Relation Between CD Ultrasonography Parameters and Seminal Qualitymentioning

confidence: 92%

Section: Relationship Between Spermatogenesis and Doppler Ultrasonography Parametersmentioning

confidence: 94%

Section: Relationship Between Spermatogenesis and Doppler Ultrasonography Parametersmentioning

confidence: 99%

mentioning

confidence: 99%

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New Approaches to Assess Fertility in Domestic Animals: Relationship between Arterial Blood Flow to the Testicles and Seminal Quality

Velasco

Ruiz

2020

Animals

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“…Se sabe que una de las causas de infertilidad idiopática masculina es el daño oxidativo al ADN espermático puede originar infertilidad en los hombres [66]. En el proceso de espermiogénesis se da un cambio de histonas por protaminas, junto con ellos la cromatina es superenrollada (toroides).…”

Section: Trastornos Reproductivos Masculinosunclassified

Exposición a sulfonato de perfluorooctano (PFOS) durante el desarrollo gonadal temprano y sus efectos en la diferenciación testicular en ratones adultos CD-1

Carranza

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An updated insight on testicular hemodynamics: Environmental, physiological, and technical perspectives in farm and companion animals

et al. 2022

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In all organs, control of blood flow is important but might be particularly critical for testicular functions. This is because of the very low oxygen concentration and high metabolic rate of the seminiferous tubules, the physiological temperature of the testis, and its location outside the abdominal cavity. Many factors affect the characteristics of TBF in farm and companion animals, such as environment (thermal and seasonal effects) and physiological (species, breeds, age, body weight, and sexual maturity). Thermal environment stress has detrimental effects on spermatogenesis and consequently has more serious impacts on both human and animal fertility. Numerous studies have been performed to assess TBF in different animal species including bulls, rams, bucks, alpacas, stallions, and dogs with varied results. Hence, assessment of TBF by Doppler ultrasonography is of great importance to estimate the effect of high environment temperature on testicular functions. Also, differences observed in the TBF may result from different technical aspects such as the identification of the segment of the testicular artery to be examined. In the current review, we focused on the imperative roles of TBF in various animal species. Besides, we discussed in detail various factors that could affect TBF. These factors can significantly modify the TBF and thus should be considered when establishing reference values in farm animals for better clinical diagnosis. The information provided in this review is valuable for researchers and veterinarians to help them a better understanding of testicular hemodynamics for the proper evaluation of breeding soundness examination in males.

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Assessment of Dog Testis Perfusion by Colour and Pulsed-Doppler Ultrasonography and Correlation With Sperm Oxidative DNA Damage

Cited by 11 publications

References 25 publications

New Approaches to Assess Fertility in Domestic Animals: Relationship between Arterial Blood Flow to the Testicles and Seminal Quality

New Approaches to Assess Fertility in Domestic Animals: Relationship between Arterial Blood Flow to the Testicles and Seminal Quality

Exposición a sulfonato de perfluorooctano (PFOS) durante el desarrollo gonadal temprano y sus efectos en la diferenciación testicular en ratones adultos CD-1

An updated insight on testicular hemodynamics: Environmental, physiological, and technical perspectives in farm and companion animals

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