In Vitro Inhibition of Human Sperm Creatine Kinase by Nicotine, Cotinine and Cadmium, as a Mechanism in Smoker Men Infertility

نویسندگان

  • Behrooz Motlagh
  • Mohammad Abromand
  • Mohammad Ali Ghaffari stry Department, Faculty of Medicine, Ahwaz Jundishapour University of Medical Sciences, Ahwaz, Iran
چکیده مقاله:

Background Nicotine, cotinine and cadmium are harmful components of cigarettes that have an effect on human reproductive function. Although the effects of cigarette smoke on male reproductive function is characterized in several articles its mechanism of action is still unknown. In the present study, we investigate the effect of nicotine, cotinine and cadmium on human sperm creatine kinase activity in vitro. MaterialsAndMethods Total creatine kinase activity is measured in sperm homogenates after chromatography on a diethylaminoethyl cellulose (DEAE-32) column. Results We show that creatine kinase activity is significantly inhibited by nicotine (44%), cotinine (39%) and cadmium (65%) at a concentration of 60 μg/ml. Kinetic studies reveal that the inhibitory effect of nicotine, cotinine and cadmium are competitive in relation to creatine phosphate. Conclusion Considering the importance of creatine kinase activity for normal sperm energy metabolism, our results suggest that inhibition of this enzyme by nicotine, cotinine and cadmium may be an important mechanism in infertility amongst male smokers. However, further investigations are needed to elucidate the exact mechanism of cigarette effect on male reproductive function at the molecular level.

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in vitro inhibition of human sperm creatine kinase by nicotine, cotinine and cadmium, as a mechanism in smoker men infertility

background: nicotine, cotinine and cadmium are harmful components of cigarettes that have an effect on human reproductive function. although the effects of cigarette smoke on male reproductive function is characterized in several articles its mechanism of action is still unknown. in the present study, we investigate the effect of nicotine, cotinine and cadmium on human sperm creatine kinase act...

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in vitro effect of lead, silver, tin, mercury, indium and bismuth on human sperm creatine kinase activity: a presumable mechanism for men infertility

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In vitro effect of lead, silver, tin, mercury, indium and bismuth on human sperm creatine kinase activity: a presumable mechanism for men infertility.

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عنوان ژورنال

دوره 2  شماره 3

صفحات  125- 130

تاریخ انتشار 2008-02-01

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