Measurement of concanavalin A induced agglutination of follicular, luteal and atretic rat granulosa cells |
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Authors: | R K Parshad S S Guraya |
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Institution: | ICMR Advanced Research Center in Reproductive Biology, Department of Zoology, Punjab Agricultural University, Ludhiana 141004, India |
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Abstract: | To determine changes in the surface membrane of granulosa cells related to follicular atresia and luteinization, their agglutination behavior with Concanavalin A has been studied by quantitative spectrophotometry. As compared to the granulosa cells of normal Graafian follicles, the agglutination rate (delta A546/5 min) and final level of agglutination significantly increased in atretic and decreased in luteinized cells indicating the increase of Con A binding sites with atresia and decrease with luteinization. Treatments of granulosa cells with EDTA and trypsin enhanced agglutination of follicular and luteal cells but had no effect on atretic granulosa cells. |
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