Effects of sugammadex on immunoreactivity of calcineurin in rat testes cells after neuromuscular block: a pilot study |
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Authors: | Y?ld?ray Kalkan Levent Tümkaya Habib Bostan Yakup Tomak Adnan Y?lmaz |
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Institution: | (1) Department of Histology and Embryology, Medical Faculty, Rize University, Rize, Turkey;(2) Department of Anesthesiology and Intensive Care, Medical Faculty, Rize University, Rize, Turkey;(3) Department of Biochemistry, Medical Faculty, Rize University, Rize, Turkey |
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Abstract: | Reversal of neuromuscular blockage induced by steroidal neuromuscular blocking agents such as rocuronium can be achieved using
normal dose of sugammadex, which has been shown to be very effective for such reversal. In this study, we determined the effects
of sugammadex on calcineurin immunoreactivity by examining the histopathological and histochemical structure of rat testis
cells after neuromuscular blockage. Moreover, the regional distribution levels of calcineurin immunopositive testes cells
were investigated. Eighteen adult male, Sprague–Dawley rats were divided into one control and two study groups. Study groups
1 and 2 rats received sugammadex at doses of 16 and 96 mg kg−1 i.v., respectively, after rocuronium treatment (mg kg−1 i.v.). The control group received intravenous 0.9% NaCl 1 ml. i.v without any drug. Our study demonstrates that sugammadex
is safe and effective for reversal of rocuronium effects in rats, as well as in other animals and humans. Furthermore, histopathological
examination indicates that high levels of sugammadex–rocuronium complexes accumulate a little in testis tissue. We found that
rocuronium-sugammadex complexes were remained in circulation for a long time resulting in a decrease in interstitial space,
testis size, germ cell numbers and Leydig cell numbers. Calcineurin immunoreactivity was higher in the experimental groups
than the control group due to increase of calcium level. The results suggest that sugammadex–rocuronium complexes are cause
histopathological and immunohistochemical changes in testis interstitial tissues, as well as changes in sperm density and
germ cell number. |
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