Non-Invasive Scrotal Thermometry

Zorgniotti, Adrian W.

doi:10.1007/978-1-4684-5913-5_10

Cited by 8 publications

(2 citation statements)

References 6 publications

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“…The testis and epididymis represent the major thermal mass in the hemiscrotum, and intrascrotal skin surface temperatures reflect the temperature of the underlying testis (Zorgniotti, 1991;Zorgniotti and Macleod, 1973). When measuring testicular and intra-scrotal temperatures, accuracy and reproducibility is essential as temperature differences in a euthermic and hyperthermic testis may be as little as 0.6-1.4°C (Zorgniotti and Macleod, 1973).…”

Section: Measurement Of Scrotal Temperaturementioning

confidence: 99%

Causes, effects and molecular mechanisms of testicular heat stress

Durairajanayagam

Agarwal

Ong

2015

Reproductive BioMedicine Online

322

211

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The process of spermatogenesis is temperature-dependent and occurs optimally at temperatures slightly lower than that of the body. Adequate thermoregulation is imperative to maintain testicular temperatures at levels lower than that of the body core. Raised testicular temperature has a detrimental effect on mammalian spermatogenesis and the resultant spermatozoa. Therefore, thermoregulatory failure leading to heat stress can compromise sperm quality and increase the risk of infertility. In this paper, several different types of external and internal factors that may contribute towards testicular heat stress are reviewed. The effects of heat stress on the process of spermatogenesis, the resultant epididymal spermatozoa and on germ cells, and the consequent changes in the testis are elaborated upon. We also discuss the molecular response of germ cells to heat exposure and the possible mechanisms involved in heat-induced germ cell damage, including apoptosis, DNA damage and autophagy. Further, the intrinsic and extrinsic pathways that are involved in the intricate mechanism of germ cell apoptosis are explained. Ultimately, these complex mechanisms of apoptosis lead to germ cell death.

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Section: Measurement Of Scrotal Temperaturementioning

confidence: 99%

Causes, effects and molecular mechanisms of testicular heat stress

Durairajanayagam

Agarwal

Ong

2015

Reproductive BioMedicine Online

322

211

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“…Moreover, gamete production is a fundamentally different process in males and females requiring sex‐specific physiologies, which in turn may lead to sex‐specific responses to changing environments. For instance, spermatogenesis is often considered to be particularly sensitive to heat stress—an issue that has been extensively studied in mammals, including humans (Zorgniotti, 1991 ), and has long been argued to have caused the evolution of external testes (i.e. a scrotum) in several mammalian clades (Lovegrove, 2014 ; Moore, 1926 ).…”

Section: Introductionmentioning

confidence: 99%

Sexual selection moderates heat stress response in males and females

et al. 2022

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Ambient temperature is one of the most variable environmental factors that terrestrial organisms face during their lifetimes and is predicted to have profound effects on behaviour, physiology and life-history traits (Angilletta, 2009;Huey et al., 2012;Tattersall et al., 2012). The Intergovernmental Panel on Climate Change is currently predicting a rise of global surface temperature of 1.2 to 3.0°C until 2060 (IPCC, 2021), which will be likely linked to a higher frequency of extreme weather phenomena such as drought and heat-

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