[LDH-C4 and beta HCG in seminal fluid]. / LDH-C4 i beta HCG u sjemenoj tekucini.

At the Outpatient Unit for Infertile Couples 47 male patients coming for conjugal infertility consultations were examined. Routinely at least three spermiograms were analysed for each patient. LDH-C4, beta HCG and LH concentrations were determined in the seminal fluid and the FSH concentration in the serum. A significant correlation was established between LDH-C4 and beta HCG and LH in the seminal fluid. The coefficient of correlation between LDH-C4 in the seminal fluid and FSH in the serum was significantly negative, but this correlation was less significant.

[Sex hormone binding globulin in stimulated cycles]. / Globulin koji vezuje spolne hormone u stimuliranim ciklusima.

Ovulation was stimulated in 56 cycles, namely in 16 cycles with clomiphene, in 19 with clomiphene and HCG, and in 16 cycles with clomiphene, HMG and HCG. In three women there was no LH or estradiol increase following ovulation stimulation with clomiphene, but in two women stimulated by the two remaining methods there was a spontaneous LH peak before the application of HCG. Using the radioimmunologic method once a day the concentrations of LH, estradiol and SHBG in serum were determined. The concentrations of SHBG in serum do not change in all three methods of ovulation stimulation. The mean concentrations of SHBG vary between 47 and 54 mumol/l during the entire preovulatory phase of the stimulated cycle. All of these cycles were ovulatory since the preovulatory E2 peak is clearly expressed in all three methods of ovulation stimulation.