Mice preantral follicles were cultured in vitro for 12 days to achieve metaphase Ⅱ （M Ⅱ ） oocytes. Oocyte growth differentiation factor-9 （GDF-9） gene expression was measured during different growth stages to ex...Mice preantral follicles were cultured in vitro for 12 days to achieve metaphase Ⅱ （M Ⅱ ） oocytes. Oocyte growth differentiation factor-9 （GDF-9） gene expression was measured during different growth stages to explore the relationship between oocyte maturation and GDF-9 gene expression. Preantral follicles of lO-day old mice were isolated from the ovaries and were cultured for 12 days. Oocytes from day 2 （D2）, D4, D6, D8, DIO, D12 cultured in vitro were named the in vitro group and oocytes of day 12 （D12）, D14, D16, D18, D20, D22 grown in vivo were named the in vivo group. Follicle survival, antrum formation and maturation rate were 89.5%, 51.8% and 56.6% respectively in follicles cultured in vitro. After RT-PCR and agarose gel electrophoresis, relative mRNA abundance of GDF-9 was measured in each group of oocytes. At day 8 - 12, the GDF-9 gene expression level of oocytes in vitro was significantly lower than that in vivo （P 〈 0.05）. We conclude that M Ⅱ oocytes can be obtained from in vitro culture of preantral follicles. The GDF- 9 gene expression of oocytes varies at different growth stages in vivo. The low expression of GDF-9 in oocytes cuhured in vitro may be the cause of their low developmental capacity.展开更多
目的探究血清网膜素-1(Omentin-1)、补体/C1q肿瘤坏死因子相关蛋白9(CTRP-9)水平与急性脑梗死(ACI)神经功能康复的相关性。方法选取2022年11月至2024年2月于该院治疗的ACI患者106例作为研究组,其中包括ACI神经功能康复良好患者62例(良好...目的探究血清网膜素-1(Omentin-1)、补体/C1q肿瘤坏死因子相关蛋白9(CTRP-9)水平与急性脑梗死(ACI)神经功能康复的相关性。方法选取2022年11月至2024年2月于该院治疗的ACI患者106例作为研究组,其中包括ACI神经功能康复良好患者62例(良好组)和康复不良患者44例(不良组)。采用酶联免疫吸附试验检测所有研究对象的血清Omentin-1、CTRP-9水平;采用Spearman相关性分析血清Omentin-1、CTRP-9水平与ACI患者入院时的美国国立卫生研究院卒中量表(NIHSS)评分及脑梗死体积的相关性;采用多因素Logistic回归分析ACI患者神经功能康复不良的影响因素;采用受试者工作特征(ROC)曲线分析血清Omentin-1、CTRP-9水平对ACI患者神经功能康复不良的诊断价值。结果良好组血清Omentin-1、CTRP-9水平明显高于不良组(P<0.05),入院时NIHSS评分、脑梗死面积和发病90 d时改良Rankin量表(mRS)评分明显低于不良组(P<0.05);Spearman相关性分析显示,血清Omentin-1、CTRP-9水平与90 d mRS评分呈负相关(r=-0.648,-0.573,均P<0.001);多因素Logistic回归分析结果显示,90 d mRS评分是ACI患者神经功能康复不良的危险因素(P<0.05),血清Omentin-1、CTRP-9水平是ACI患者神经功能康复不良的保护因素(P<0.05);ROC曲线分析结果显示,血清Omentin-1、CTRP-9水平诊断ACI患者神经功能康复不良的曲线下面积(AUC)为0.843、0.828,二者联合诊断的AUC为0.937,明显大于二者单独诊断(Z_(二者联合-Omentin-1)=2.321,P=0.020;Z_(二者联合-CTRP-9)=2.532,P=0.011)。结论ACI神经功能康复不良患者血清Omentin-1、CTRP-9水平明显降低,且Omentin-1、CTRP-9水平与90 d mRS评分呈负相关,与神经功能康复情况密切相关。展开更多
文摘Mice preantral follicles were cultured in vitro for 12 days to achieve metaphase Ⅱ （M Ⅱ ） oocytes. Oocyte growth differentiation factor-9 （GDF-9） gene expression was measured during different growth stages to explore the relationship between oocyte maturation and GDF-9 gene expression. Preantral follicles of lO-day old mice were isolated from the ovaries and were cultured for 12 days. Oocytes from day 2 （D2）, D4, D6, D8, DIO, D12 cultured in vitro were named the in vitro group and oocytes of day 12 （D12）, D14, D16, D18, D20, D22 grown in vivo were named the in vivo group. Follicle survival, antrum formation and maturation rate were 89.5%, 51.8% and 56.6% respectively in follicles cultured in vitro. After RT-PCR and agarose gel electrophoresis, relative mRNA abundance of GDF-9 was measured in each group of oocytes. At day 8 - 12, the GDF-9 gene expression level of oocytes in vitro was significantly lower than that in vivo （P 〈 0.05）. We conclude that M Ⅱ oocytes can be obtained from in vitro culture of preantral follicles. The GDF- 9 gene expression of oocytes varies at different growth stages in vivo. The low expression of GDF-9 in oocytes cuhured in vitro may be the cause of their low developmental capacity.
文摘目的探究血清网膜素-1(Omentin-1)、补体/C1q肿瘤坏死因子相关蛋白9(CTRP-9)水平与急性脑梗死(ACI)神经功能康复的相关性。方法选取2022年11月至2024年2月于该院治疗的ACI患者106例作为研究组,其中包括ACI神经功能康复良好患者62例(良好组)和康复不良患者44例(不良组)。采用酶联免疫吸附试验检测所有研究对象的血清Omentin-1、CTRP-9水平;采用Spearman相关性分析血清Omentin-1、CTRP-9水平与ACI患者入院时的美国国立卫生研究院卒中量表(NIHSS)评分及脑梗死体积的相关性;采用多因素Logistic回归分析ACI患者神经功能康复不良的影响因素;采用受试者工作特征(ROC)曲线分析血清Omentin-1、CTRP-9水平对ACI患者神经功能康复不良的诊断价值。结果良好组血清Omentin-1、CTRP-9水平明显高于不良组(P<0.05),入院时NIHSS评分、脑梗死面积和发病90 d时改良Rankin量表(mRS)评分明显低于不良组(P<0.05);Spearman相关性分析显示,血清Omentin-1、CTRP-9水平与90 d mRS评分呈负相关(r=-0.648,-0.573,均P<0.001);多因素Logistic回归分析结果显示,90 d mRS评分是ACI患者神经功能康复不良的危险因素(P<0.05),血清Omentin-1、CTRP-9水平是ACI患者神经功能康复不良的保护因素(P<0.05);ROC曲线分析结果显示,血清Omentin-1、CTRP-9水平诊断ACI患者神经功能康复不良的曲线下面积(AUC)为0.843、0.828,二者联合诊断的AUC为0.937,明显大于二者单独诊断(Z_(二者联合-Omentin-1)=2.321,P=0.020;Z_(二者联合-CTRP-9)=2.532,P=0.011)。结论ACI神经功能康复不良患者血清Omentin-1、CTRP-9水平明显降低,且Omentin-1、CTRP-9水平与90 d mRS评分呈负相关,与神经功能康复情况密切相关。
