Table 2.

Serum and follicular fluid hormone levels during in vitro fertilization.

	5-HT (ng/mL)			Kisspeptin (ng/mL)			BDNF (pg/mL)			PAF (pg/mL)
	Serum before OHS	Serum after OHS	Follicular fluid	Serum before OHS	Serum after OHS	Follicular fluid	Serum before OHS	Serum after OHS	Follicular fluid	Serum before OHS	Serum after OHS	Follicular fluid
All patients (n=30)
	**p ≤ 0.01			**p ≤ 0.01
Mean	173.60	238.87	13.14	0.50	0.79	0.67	566.90	585.25	41.64	844.84	818.70	658.62
SD	64.66	107.08	9.84	0.18	0.21	0.14	249.74	171.62	47.73	2274.79	2097.72	1854.47
Pregnancy-negative group (n=23)
	**p ≤ 0.01			**p ≤ 0.01
Mean	164.68	231.34	13.83	0.50	0.78	0.65	599.52	600.15	47.63	918.48	827.73	750.50
SD	56.54	97.33	10.68	0.19	0.23	0.14	245.65	170.35	52.90	2528.88	2249.94	2097.58
									+p = 0.026
Pregnancy-positive group (n=7)
	**p  ≤  0.01			**p ≤ 0.01
Mean	202.92	263.59	10.88	0.51	0.80	0.74	459.70	536.28	21.96	602.88	789.00	356.72
SD	84.73	140.54	6.46	0.18	0.13	0.12	250.43	179.75	12.75	1213.50	1644.93	592.12

SD=standard deviation, 5-HT=serotonin, BDNF=brain-derived neurotrophic factor, PAF=platelet-activating factor, OHS=ovarian hyperstimulation

The columns present data for serum samples before and after OHS and follicular fluid samples.

⁺Intergroup difference, ⁺p ≤ 0.05; *intragroup difference, **p ≤ 0.01.