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  • Title: The effect of 6-chloro-6-deoxysugars on adenine nucleotide concentrations in and motility of rat spermatozoa.
    Author: Ford WC, Harrison A.
    Journal: J Reprod Fertil; 1981 Sep; 63(1):75-9. PubMed ID: 7277335.
    Abstract:
    Spermatozoa from rats treated with 6-chloro-6-deoxyglucose (120 mumol/kg/day) were as motile as those from controls soon after dilution but rapidly became immotile when 3 mM-D-glucose was the only substrate present. Control spermatozoa were more motile when 2 mM-pyruvate + 4 mM-DL-lactate rather than 2 mM-D-glucose was present and the former substrate allowed spermatozoa from treated rats to remain motile. The concentrations of the adenine nucleotides declined rapidly during 40 min incubations when th substrate was 2 mM-D-glucose. The ATP/ADP ratio and the energy charge (ATP + 1/2 ADP/ATP + ADP + AMP) were maintained in spermatozoa from control rats but not in those from treated rats. When the substrate was 2 mM-pyruvate + 4 mM-DL-lactate adenine nucleotides were not lost as rapidly and there was less difference between spermatozoa from control and treated rats.
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