目的：分析体外受精(IVF)患者卵泡液中sFas和sFasL的浓度与妊娠的关系，以及与卵泡液中的促黄体素(LH)水平之间的相关性。方法：收集行IVF/ICSI患者的卵泡液，测定sFas、sFasL和LH浓度。结果：妊娠组排卵前卵泡液中的sFasL和LH水平显著高于未妊娠组(P分别为0.002和＜0.001)，两组中sFas水平没有明显差异。通过logistic回归分析，卵泡液中与妊娠有统计学相关的因素仅为LH，OR=4.117(P为0.001)。卵泡液中的LH和sFasL的水平呈明显正相关关系(Plt;0.001)，LH与sFas之间无显著相关关系。结论：在IVF/ICSI治疗周期中，卵泡液中的sFasL蛋白和LH水平与妊娠结局有关，卵泡液中的LH水平可能通过调节卵泡局部的某些系统来调节卵泡中FasFasL系统介导的凋亡作用。
ObjectiveTo quantify cytokine and chemokine mRNA expression in follicular fluid cells obtained at the time of oocyte retrieval before IVF in women with and without polycystic ovary syndrome (PCOS). MethodsBetween January and August 2014, 80 subjects undergoing IVF-ET were chosen to be studied. Among them, 40 had PCOS, and the other 40 were controls. Follicular fluid cells were subjected to quantitative RT-PCR to evaluate growth-regulated oncogene-α (GRO-α), tumor necrosis factor-α (TNF-α), interleukins (IL-6, IL-8) expression relative to β-actin. And the chemokine was measured in serum and follicular fluids by immunoassays. These mRNA transcriptions production was proved by sequencing. ResultsGRO-α, TNF-α, IL-6 and IL-8 mRNA were expressed in follicular fluid cells. Their expressions were significantly higher in PCOS compared with controls (P<0.05). They were also detected higher in PCOS than controls in serum and follicular (P<0.05), but the difference of IL-6 level between PCOS and controls in lean patients was not statistically significant (P>0.05). ConclusionGRO-α, IL-8, TNF-α, and IL-6 may play important roles in the occurrence and development of PCOS. PCOS may be a chronic immunological inflammatory disease.
Transcranial magnetic stimulation (TMS) as a non-invasive neuroregulatory technique has been applied in the clinical treatment of neurological and psychiatric diseases. However, the stimulation effects and neural regulatory mechanisms of TMS with different frequencies and modes are not yet clear. This article explores the effects of different frequency repetitive transcranial magnetic stimulation (rTMS) and burst transcranial magnetic stimulation (bTMS) on memory function and neuronal excitability in mice from the perspective of neuroelectrophysiology. In this experiment, 42 Kunming mice aged 8 weeks were randomly divided into pseudo stimulation group and stimulation groups. The stimulation group included rTMS stimulation groups with different frequencies (1, 5, 10 Hz), and bTMS stimulation groups with different frequencies (1, 5, 10 Hz). Among them, the stimulation group received continuous stimulation for 14 days. After the stimulation, the mice underwent new object recognition and platform jumping experiment to test their memory ability. Subsequently, brain slice patch clamp experiment was conducted to analyze the excitability of granulosa cells in the dentate gyrus (DG) of mice. The results showed that compared with the pseudo stimulation group, high-frequency (5, 10 Hz) rTMS and bTMS could improve the memory ability and neuronal excitability of mice, while low-frequency (1 Hz) rTMS and bTMS have no significant effect. For the two stimulation modes at the same frequency, their effects on memory function and neuronal excitability of mice have no significant difference. The results of this study suggest that high-frequency TMS can improve memory function in mice by increasing the excitability of hippocampal DG granule neurons. This article provides experimental and theoretical basis for the mechanism research and clinical application of TMS in improving cognitive function.