Specific primers for the genes of interest (insulin-like growth factor 1 receptor [IGF-1R], FSHR, luteotropic hormone receptor [LHR], and CYP19A1) were added, and a final volume of 10 ml was used for the PCR step.
Effect of dandelion extract T-1 on the mRNA expressions of follicle-stimulating hormone receptor, luteotropic hormone receptor, insulin-like growth factor 1 receptor, and CYP19A1 in granulosa cells
Another interesting report by Clementi and coworkers  also suggests that the luteotropic
effect of the decidual tissue in rats is mediated through the secretion of pituitary PRL, which in turn stimulates P4 biosynthesis by increasing luteal 3[beta]-HSD activity, and inhibits P4 catabolism by diminishing luteal 20[alpha]-HSD activity.
(34,35) TSH possess a luteotropic
activity and reach one fifth of the biological activity of hCG.
On the other hand, other investigators  suggest that TNF-[alpha] may provide both luteolytic and luteotropic
The data obtained in cows prove that LPA can be an additional auxiliary luteotropic
factor acting in the CL and in the endometrium during both the estrous cycle and early pregnancy establishment.
* Maternal recognition of pregnancy signals prevent/delay luteolysis by interfering with [PGF.sub.2[alpha]]-induced regression of the CL or by boosting the luteotropic
effects of tamoxifen in infertile women.
Responsiveness of porcine large and small luteal cells to luteotropic
or luteolytic hormones and cell morphology changes during the estrous cycle and pregnancy.
Gonad function indicated testosterone (T) 0.55 nmol/L, luteotropic
hormone <0.07 U/L, and follicle-stimulating hormone 2.64 U/L.
Minici et al., "Ghrelin affects the release of luteolytic and luteotropic
factors in human luteal cells," Journal of Clinical Endocrinology and Metabolism, vol.
In conclusion, GnRH-A during FLM neither increased fertility in cows at first service nor estimu lated the [P.sub.4] discharge, but in VR apparently had a luteotropic
effect that delay regression of corpus luteum, maintaining higher [P.sub.4] levels in order to prolong embryo viability and to reach optimum fertility.