Expression of functional luteinising hormone receptor and its messenger ribonucleic acid in bovine cervix: luteinising hormone augmentation of intracellular cyclic AMP, phosphate inositol and cyclooxygenase

Abstract The effect of luteinising hormone (LH) on bovine cervical tissues from three phases of the estrous cycle was studied. It was found that in the luteal phase cervix contained an LH receptor mRNA transcript and the 93 kDa LH receptor protein. Incubation of cervical minces from luteal phase with LH significantly increased ( P 2 (but not PGF 2α ). In contrast in the pre-oestrus/oestrus or post-ovulatory cervix, the signal for the transcript for LH receptor and the LH receptor protein was significantly lower than luteal cervix ( P 2