论著

制何首乌、巴戟天及其配伍对ox-LDL诱导的人脐静脉内皮细胞损伤的影响

The effects of Polygonum multiflorum praeparata, Morinda officinalis and their compatibility on ox-LDL-induced injury of human umbilical vein endothelial cells(HUVEC)

:21-26
 
目的 探讨制何首乌、巴戟天及二者配伍,对氧化型低密度脂蛋白(ox-LDL)诱导的人脐静脉内皮细胞(HUVEC)损伤的影响,以示临床。方法 建立ox-LDL诱导的HUVEC损伤模型,分别用制何首乌、巴戟天、二者配伍的水煮物干预,检测HUVEC的细胞增殖、相对活率、细胞凋亡率、细胞周期、NFκB mRNA的表达。结果 ①制何首乌、巴戟天均能抑制ox-LDL诱导的HUVEC凋亡,二者配伍的抑制作用强于单味中药制何首乌。②制何首乌、巴戟天均能延长ox-LDL诱导的HUVEC的细胞周期(S+G2)%,制何首乌、巴戟天的延长作用相似,二者配伍的延长作用强于单味中药制何首乌、巴戟天。③制何首乌组、巴戟天组的NFκB mRNA的表达量下降,制何首乌组的抑制作用强于巴戟天组,二者配伍的抑制作用强于单味中药制何首乌、巴戟天。结果 制何首乌、巴戟天均能抑制ox-LDL诱导的HUVEC损伤,二者配伍的作用强于单味中药制何首乌、巴戟天。
Objective To investigate the effects of Polygonum multiflorum praeparata, Morinda officinalis and their compatibility on ox-LDL-induced injury of human umbilical vein endothelial cells(HUVEC). Methods We established an ox-LDL-induced HUVEC injury model, made intervention with Polygonum multiflorumpraeparata, Morinda officinalis and their compatibility, the HUVEC cell proliferation, relative viability, apoptosis, cell cycle, NFκB mRNA were detected. Results ①Both Polygonum multiflorumpraeparata, Morinda officinalis reduced the apoptosis rate of HUVEC, and their compatibility had a stronger effect on reducing the apoptosis rate of HUVEC than single Polygonum multiflorumpraeparata. ②Both Polygonum multiflorumpraeparata, Morinda officinalis increased the HUVEC cell cycle (S+G2)%, the extension between Polygonum multiflorumpraeparata and Morinda officinalis was similar, and their compatibility increased HUVEC cell cycle (S+G2)%, it was stronger than single Polygonum multiflorumpraeparata and single Morinda officinalis. ③Both Polygonum multiflorumpraeparata and Morinda officinalis down-regulated the expression of NFκB mRNA in HUVEC, their compatibility down-regulated HUVEC NFκB mRNA expression,it was stronger than Polygonum multiflorumpraeparata, Morinda officinalis. Conclusion Polygonum multiflorumpraeparata, Morinda officinalis and their compatibility can inhibit ox-LDL-induced HUVEC injury, and their compatibility inhibition is stronger than single Polygonum multiflorumpraeparata, and Morinda officinalis.
论著

急性髓细胞白血病患者化疗后生活质量现状及相关因素分析

Analysis of quality of life and related factors in patients with acute myeloid leukemia after regular chemotherapy

:9-15
 
目的 随着治疗水平和疗效的不断提高,急性白血病患者的生存质量越来越受到广泛的关注,本研究旨在探讨急性白血病(AML)患者化疗后生活质量及其相关因素。方法 采用癌症患者生存质量测定量表(European Organization for Research and Treatment of Cancer, EORTC-QLQ-C30)中文版、患者一般状况调查问卷,对268例按照AML患者治疗后1年生活质量进行调查,并将EORTC-QLQ-C30各领域评分与患者的特征进行相关性分析。结果 AML患者年龄、FAB分型、是否恢复工作、ECOG评分、婚姻状态、生存质量评分比较上,差异有统计学意义(P>0.05);不同年龄组AML患者PF、RF、EF、SF、QL、FI评分比较上,差异有统计学意义(P<0.05);不同分型AML患者患者RF、EF、SF、QL、DY、SL、FI评分比较上,差异有统计学意义(P<0.05),恢复工作的AML患者PF、RF、SF、QL评分高于未恢复工作的AML患者,恢复工作的AML患者FA、DY、FI评分则低于未恢复工作的AML患者(P<0.05),结婚AML患者PF、RF、SF、QL评分高于未结婚患者,结婚AML患者FA评分低于未结婚患者(P<0.05);逐步多元回归分析发现,年龄、分型、ECOG评分、婚姻状况与AML生存质量有关。结论 高龄、非M3型、ECOG评分高、未婚是AML生存质量差危险因素,可能作为改善AML患者生活质量预期指标。
Objective With the continuous improvement of treatment level and efficacy, the quality of life of patients with acute myeloid leukemia (AML) has attracted more and more extensive attention. This study aimed to explore the quality of life and related factors of patients with acute leukemia (AML) after chemotherapy. Methods The Chinese version of the quality of life scale for cancer patients(European Organization for Research and Treatment of Cancer, EORTC-QLQ-C30, and the general situation questionnaire were was used to investigate quality of life for 268 AML patients one year after treatment.And then the correlation between the EORTC-QLQ-C30 scores in various fields and the characteristics of patients were analyzed. Results There were statistical differences in the scores of age, AML types, work(yes or no),ECOG scores, and marital status in patients (P<0.05).The differences of PF, RF, EF, SF, QL, FI score of AL in different age groups were statistically significant (P<0.05), The PF, RF, EF, SF, QL and FI scores of AML patients in different age groups were statistical different (P<0.05).The scores of PF, RF, SF and QL in AML patients who returned to work were higher than those in AML patients who did not returned to work,while FA, DY and FI scores were the opposite(P<0.05).The PF, RF, SF and QL scores of married AML patients were higher than those of unmarried AML patients,while FA scores were the opposite(P<0.05).Age, classification, ECOG score, marital status were found to be associated with quality of life of AML patients by stepwise multiple regression analysis (P<0.05). Conclusion Old age, non-M3 type, high ECOG score, and unmarried are risk factors for poor quality of life for AML, which may serve as expected indicators for improving the quality of life of patients with acute leukemia.
论著

细胞因子在妊娠期亚临床甲减患者不良妊娠结局中的作用

The role of cytokines in adverse pregnancy outcomes in subclinical hypothyroidism during pregnancy

:101-104
 
目的 比较细胞因子TGF-β、IL-10、TNF-α、Th17在不同妊娠结局的妊娠期亚临床甲减孕妇血清中的差异,探索细胞因子在不同妊娠结局中的作用。方法 随机选择2018年1月—2018年12月在我院就诊的66例确诊为因妊娠期亚临床甲减而出现不良妊娠结局的孕妇与同期妊娠结局正常的66例孕妇进行病例对照研究,比较不同妊娠结局孕妇的血清TGF-β、IL-10、TNF-α、Th17的差异;结果 ① 亚临床甲减组的TPOAb、TgAb、TRAb阳性率高于正常妊娠组,同时TNF-α、Th17均高于正常妊娠组,而TGF-β、IL-10均低于正常妊娠组,差异有统计学意义(P<0.05)。② 因子分析发现:在TPOAb、TgAb、TRAb、TGF-β、IL-10、TNF-α、Th17七个影响妊娠期亚临床甲减不良妊娠结局的相关因素中,TGF-β、IL-10、TNF-α、Th17在第1影响因子,特征值达2.347;TPOAb、TgAb、TRAb是次要影响因子,特征值为1.162。结论 TGF-β、IL-10、TNF-α、Th17与妊娠期亚临床甲状腺功能减退症的不良妊娠结局有密切关系,TGF-β、IL-10、TNF-α、Th17是影响妊娠期亚临床甲减不良妊娠结局的主要因子;TPOAb、TgAb、TRAb是影响妊娠期亚临床甲减不良妊娠结局的次要因子。
Objective To compare the serum levels of TGF-β, IL-10, TNF-α and Th17 in pregnant women with subclinical hypothyroidism in different pregnancy outcomes. Methods A case-control study was conducted in 66 pregnant women with adverse pregnancy outcomes due to subclinical hypothyroidism during pregnancy and 66 pregnant women with normal pregnancy outcomes during the same period. The differences of serum TGF-β, IL-10, TNF-α and Th17 among pregnant women with different pregnancy outcomes were compared. Results ①The positive rates of TPOAb, TgAb and TRAb in subclinical hypothyroidism group were higher than those in normal pregnancy group, and TNF-α and Th17 were higher than those in normal pregnancy group, while TGF-βand IL-10 were lower than those in normal pregnancy group (P<0.05). ②Factor analysis found that TPOAb, TgAb, TRAb, TGF-β, IL-10, TNF-α and Th17 were the factors related to adverse pregnancy outcomes of subclinical hypothyroidism in pregnancy. TGF-β, IL-10, TNF-α and Th17 were the main influencing factors with a characteristic value of 2.347; TPOAb, TgAb and TRAb were the second influencing factors,with a characteristic value of 1.162. Conclusion ①TGF-β, IL-10, TNF-α, Th17 are closely related to the occurrence and pregnancy outcome of subclinical hypothyroidism in pregnancy. ②TGF-β, IL-10, TNF-α and Th17 are the main factors affecting the adverse pregnancy outcomes of subclinical hypothyroidism in pregnancy;TPOAb, TgAb and TRAb are the secondary factors affecting the adverse pregnancy outcomes of subclinical hypothyroidism in pregnancy,
论著

细胞毒素-1对人卵巢癌细胞体外增殖、凋亡的影响

Effect of cytotoxin-1 on human ovarian cancer cell proliferation and apoptosis in vitro

:24-27
 
目的 探讨细胞毒素-1(Cytotoxin-1,CTX-1)对人卵巢癌SKOV-3细胞增殖凋亡的影响。方法 利用0、4、8、12 μg/mL浓度 CTX-1处理SKOV-3细胞6、12、24 h,MTS法检测细胞活性,8 μg/mL CTX-1处理SKOV-3细胞24、48 h,Hoechst-33258荧光染色观察细胞核染色质形态。取处理 6、12 h 后细胞,利用流式细胞仪检测SKOV-3细胞的凋亡率。结果 4、8、12 μg/mL的CTX-1可抑制SKOV-3细胞活性及增殖,呈时间-剂量依赖。Hoechst-33258染色观察可见细胞染色质呈固缩或碎裂状、染色质着色不均、核形态各异,随时间增加而更趋明显。8 μg/mL CTX-1处理细胞,6 h细胞坏死率为(1.90±0. 27)%,晚期凋亡率为(10.96±1. 56)%,而早期凋亡率为(1.52±0.39)%;12 h细胞坏死率为(10.62±0.96)%,晚期凋亡率(15.07±1.23)%,而早期凋亡率为(1.88±0.17)%,与对照组比较,差异有统计学意义 (P<0.0 1)。结论 CTX-1可以抑制人卵巢癌细胞活性、抑制其体外增殖、诱导其发生凋亡,该作用呈剂量依赖和时间依赖,主要引起细胞晚期凋亡和坏死。
Objective To investigate the effect of cytotoxin-1 (CTX-1)on the proliferation and apoptosis of ovarian cancer SKOV-3 cells. Methods SKOV-3 cells were treated with CTX-1 at concentrations of 0, 4, 8, 12 μg/mL for 6, 12, and 24 hours respectively. Cell viability was measured by MTS method. SKOV-3 cells were treated with 8 μg/mL CTX-1 for 24 and 48 hours, by Hoechst-33258 fluorescence staining to observe the morphology of nuclear chromatin. The apoptotic rate of SKOV-3 cells was detected by flow cytometry after 6 and 12 hours of treatment. Results CTX-1 at 4, 8, and 12 μg/mL inhibited the activity and proliferation of SKOV-3 cells in a time-dose-dependent manner. Hoechst-33258 staining observation showed that the apoptotic cell chromatin was condensed or fragmented chromatin, the chromatin was unevenly colored, and the nuclear morphology was different. It became more obvious with time. 8 μg/mL CTX-1 treated cells, the 6 h cell necrosis rate was (1.90±0.27)%, the late apoptosis rate was (10.96±1.56)%, and the early apoptosis rate was (1.52±0.39)%; 12 hours cell necrosis rate was (10.62±0.96)%, late apoptosis rate was (15.07±1.23)%, and early apoptosis rate was (1.88±0.17)%, compared with the control group, the difference was statistically significant (P<0.01). Conclusion CTX-1 may inhibit the activity of human ovarian cancer cells, inhibit its proliferation in vitro, and induce its apoptosis. The effect is dose-dependent and time-dependent. Mainly it causes late apoptosis and necrosis of cells.
论著

重组人血管内皮抑素联合化疗治疗晚期非小细胞肺癌的效果

Curative effect of recombinant human vascular endostatin combined with chemotherapy on advanced nonsmall cell lung cancer

:72-75
 
目的 观察重组人血管内皮抑素注射液(恩度) 联合化疗治非小细胞肺癌(NSCLC)的近期疗效和安全性。方法 对2015年3月—2017年10月经病理组织学或细胞学检查确诊的Ⅲ-Ⅳ期NSCLC74例患者,采用随机数字法把受试者随机分为联合治疗组(n=35)和对照组(n=39),联合治疗组接受恩度联合化疗的方案治疗;对照组单纯行常规化疗治疗。近期疗效评价采用RECIST标准,生活质量(QOL)采用Karnofsky评分(KPS),抗癌药物急性与亚急性毒性反应分度标准分0~Ⅳ度。比较两组患者的近期疗效指标(疾病完全缓解(CR)、疾病稳定( SD)、疾病进展( PD)、客观有效率(RR)、疾病控制率(DCR );QOL评分及毒副反应情况。结果 联合治疗组近期疗效指标RR及DCR高于对照组(P < 0.05);联合治疗组KPS评分高于对照组(P < 0.05);两组间的毒副作用包括恶心/呕吐、腹泻、疲乏、脱发、血小板下降及白细胞下降等,两组间毒副反应出现数量比较,差异无统计学意义(P > 0.05)。结论 恩度与化疗药物联合使用可以提高NSCLC疗效和改善患者生活质量,未增加患者不良反应发生率。
Objective To observe the curative effect and the side effects of recombinant human vascular endostatin (Endostar) combined with the chemotherapy on nonsmall cell lung cancer(NSCLC). Methods Seventy-four NSCLC patients confirmed by histopathology or cytopathology were randomly distributed to combined therapy group (n=35, with Endostar combined with chemotherapy) and control group (n=39, with conventional chemotherapy). The recent efficacy of drug was evaluated according to the RECIST criteria. The quality of life (QOL) was assessed by usingto the Karnofsky scores, and the safety of drug was evaluated according to WHO side effects criteria. Results The therapeutic effectiveness was better in the combined therapy group than that in the control group(P<0.01). The KPS was better in co-therapy group than that in the control group(P<0.05). The common adverse reactions in both groups included neutropenia, thrombocytopenia, nausea/vomiting, diarrhea, lassitude, alopecia, thrombocytopenia and leukocytopenia. However, the incidence rates of adverse reactions between the two group was not significant (P>0.05). Conclusion Endostar combined with the related chemotherapy may improve the curative effect and QOL of NSCLC.
论著

促红细胞生成素对肝癌生长影响的临床研究

Clinical study on the effect of erythropoietin on the growth of liver cancer

:36-40
 
目的 分析促红细胞生成素(EPO)及促红细胞生成素受体(EPOR)在肝细胞癌(NCC)以及正常组织中的表达规律,以及它们和肝细胞癌微血管密度(MVD)之间的关系。方法 选取我院手术切除的肝细胞肝癌的标本30例,取肿瘤边缘2.0 cm的肝组织作为对照,同时取正常肝脏组织10例做为阴性对照。利用酶联免疫吸附实验(ELISA)检测各组织中EPO及EPOR表达水平,利用免疫组织化学方法染色检测微血管密度(MVD)。对比癌组织和癌旁组织EPO、EPOR及MVD差异,分析NCC中EPO、EPOR、MVD与肿瘤病理特征的关系,分析EPO、EPOR表达水平与MVD之间的关系。结果 HCC组织中,EPR、EPOR、MVD均高于癌旁组织和正常组织,差异有统计学意义(P<0.001),EPR、EPOR、MVD在癌旁组织和正常组织中,差异无统计学意义(P>0.05)。肿瘤大小>5 cm、存在包膜侵犯、存在远处转移以及高中分化的HCC中,EPR、EPOR、MVD水平高于肿瘤大小≤5 cm、无包膜侵犯、无远处转移以及低分化的水平,差异有统计学意义(P<0.05)。Person相关分析结果显示,EPO表达水平与MVD的相关系数r=0.651(P<0.001),EPOR表达水平与MVD的相关系数r=0.620(P<0.001)。结论 EPO、EPOR、MVD在HCC中呈现高水平,且与肿瘤大小、局部侵犯、远处转移及分化程度有关,其机制可能与EPO、EPOR增加MVD有关。
Objective To analyze the expression of erythropoietin (EPO) and erythropoietin receptor (EPOR) in hepatocellular carcinoma (NCC) and normal tissues,and their relationship with hepatocyte microvessel density (MVD). Methods Thirty specimens of hepatocellular carcinoma hepatectomy were selected from our hospital. The liver tissue at the edge of the tumor was taken as a control,and 10 cases of normal liver tissue were used as a negative control. The expression levels of EPO and EPOR in each tissues were detected by enzyme-linked immunosorbent assay (ELISA),and microvessel density (MVD) was detected by immunohistochemistry. The differences of EPO,EPOR and MVD between each tissues were compared. The relationship between EPO,EPOR,MVD and tumor pathological features in NCC was analyzed. The relationship between EPO and EPOR expression levels and MVD was analyzed. Results In HCC tissues,EPR,EPOR and MVD were higher than those in adjacent tissues and normal tissues. The difference was statistical difference (P<0.001). EPR,EPOR and MVD were not statistically significant in adjacent tissues and normal tissues. P>0.05). The levels of EPR,EPOR,and MVD in tumors with tumor size >5 cm,invasion of the capsule,distant metastasis,and high-differentiation were higher than those of tumor size ≤ 5 cm,no capsule invasion,no distant metastasis,and poor differentiation. The difference was statistical difference (P < 0.05). Person correlation analysis showed that the correlation coefficient between EPO expression level and MVD was r=0.651 (P<0.001),and the correlation coefficient between EPOR expression level and MVD was r=0.620 (P<0.001). Conclusion EPO,EPOR and MVD are highly expressed in HCC,and are related to tumor size,local invasion,distant metastasis and differentiation. The mechanism may be related to EPO and EPOR increasing MVD.
论著

结直肠癌发病相关的lncRNA筛选及GAPLINC对HCT116细胞的作用

Screening the lncRNA associated colorectal cancer and effects of GAPLINC on the HCT116 cells

:1-6
 
目的 筛选结直肠癌(CRC)差异性表达的长链非编码RNA(lncRNA),并进行临床标本验证,研究其对结肠癌细胞HCT116功能的作用。方法 利用lncRNA PCR芯片对3对CRC组织和癌旁对照组织筛选差异性表达的lncRNA,确定候选研究lncRNA GAPLINC,RT-qPCR对21例临床样本进行验证其表达的差异性;同时构建GAPLINC表达质粒及其沉默体siRNA转染HCT116细胞,研究其对细胞凋亡、迁移及侵袭能力的影响。结果 lncRNA芯片实验结果提示CRC组织中存在大量的差异性表达的lncRNA,其中GAPLINC在CRC组织表达稳定增加,21例临床样本进一步验证了其在肿瘤组织中表达增加(P<0.05);转染GAPLINC表达质粒后,HCT116细胞凋亡被抑制,同时其迁移及侵袭能力增强,转染siRNA抑制GAPLINC的表达后,则出现相反的结果。结论 利用lncRNA芯片可对CRC差异性表达lncRNA进行批量筛选,GAPLINC在CRC组织中表达稳定增加,具有促癌作用,在CRC发生发展中可能起着重要作用。
Objective To screen the differentiational expression of lncRNA in CRC tissue,confirm it in large simple of clinical specimens,and study its effects on human colorectal cells HCT116 cell line. Methods We screened the lncRNA which expressed differently in 3 CRC tissues and their pair-non carcinour tissues by lncRNA arrays;chose the over expressed lncRNA which played the potential role of oncogene for further researching,and tested the difference in 21 clinical specimens by RT-qPCR. We cultured the HCT166 cells,and then constructed expressed plasmids pcCDNA3.1-GAPLINC and synthesized GAPLINC siRNA,transfected the plasmids and siRNA into HCT116 cells;to study the changes of HCT116 cells behavior,the transwell assays were carried on;the changes of apoptosis of HCT116 cells were tested by flow cytometry. Results There existed many lncRNA which expressed differently between CRC tissues and normal control tissues by lncRNA arrays,there were 21 lncRNA down expressed,and 3 lncRNA up expressed;among these lncRNA,GAPLINC over expressed stably,and its high level of expression was approved in 21 clinical specimens by the test of RT-qPCR. We constructed the expressed plasmids pcCDNA3.1-GAPLINC and synthesizing GAPLINC siRNA successfully;after transfecting pcCDNA3.1-GAPLINC into HCT116 cells,the over expression of GAPLINC increased the migration and invasion of the HCT166 cells (P<0.05),decreased the proportion of cell apoptosis (P <0.05);by contraries,knocked down the expression of GAPLINC inhibited invasion and migration of HCT116 cells (P<0.05),and promoted the apoptosis of the HCT116 cells (P <0.05). Conclusion It could screen the different expression of lncRNA in large quantities by lncRNA arrays,and GAPLINC expressed highly and stably in CRC tissues. GAPLINC played a role of oncogene,which promoted the proliferation and invasion of CRC cells,and inhibited the apoptosis of CRC cells,which meant playing an important role in the carcinoma and development of CRC.
临床诊疗

血清ApoA-1浓度在食管鳞状上皮细胞癌预后的价值

Value of serum ApoA-1 concentration in prognosis of esophagus squamous cells

:113-115
 
目的 探讨血清ApoA-1浓度与食管鳞状上皮细胞癌的相关性及其预后价值。方法 对我院2010年1月—2012年10月收治的食管鳞状上皮细胞癌患者的血清ApoA-1浓度进行回顾性调查分析,与我院体检中心2009年1月—2009年4月219例正常人群的血清ApoA-1浓度作为对照组进行统计学处理分析。结果 210例食管鳞状上皮细胞癌患者组和219例健康对照组在性别和年龄比较均无统计学差异(P>0.05)。血清ApoA-1 浓度在ESCC组的pTNM和临床分期均有统计学差异(P<0.05)。与ApoA-1水平高的患者相比,ApoA-1水平低的患者的总体生存率更低(P=0.002)。结论 血清ApoA-1 水平是食管鳞状上皮细胞癌食管癌的一个重要的预后因素。
论著

低氧预处理人胎盘绒毛膜间充质干细胞环状RNAs的生物信息学分析

Bioinformatic analysis of circular RNAs in human placenta chorionic mesenchymal stem cells pretreated with hypoxia

:1-6
 
目的 采用生物信息学方法预测低氧预处理人胎盘绒毛膜间充质干细胞环状RNAs相对应的miRNA及其靶基因,并分析靶基因所参与的生物学过程和信号通路。方法 用Arraystar公司的商业软件为环状RNAs预测其相对应的miRNAs,分别用targetScan7.1和mirdbV5数据库预测miRNAs的靶基因,并取两个预测结果的合集,应用在线网站http://www.geneontology.org和http://www.genome.ad.jp/kegg对靶基因进行功能富集分析和信号通路富集分析。结果 功能富集分析表明,circRNAs的靶基因主要涉及到细胞发育、细胞分化和细胞发育调控。东京基因和基因组百科全书信号通路富集分析表明肿瘤中转录失控和有丝分裂原激活蛋白激酶(MAPK)信号通路最有意义,而且分析发现MAPK信号通路为核心通路。本研究表明,低氧预处理使得间充质干细胞中部分circRNAs的表达量发生差异性变化。结论 低氧预处理人胎盘绒毛膜间充质干细胞环状RNAs同低氧预处理间充质干细胞的生物学特性变化密切有关,为了解低氧预处理影响间充质干细胞特性发生变化的分子机制提供新思路。
Objective To predict the miRNA and its target genes of circular RNAs in hypoxia- preconditioned human palcenta chorionic mesenchymal stem cells using bioinformatics, and analyze the biological process and signaling pathway. Methods Arraystar's commercial software was used to predict the corresponding miRNAs of circular RNAs. The target genes of miRNAs were predicted by targetScan7.1 and mirdbV5 databases respectively, and an intersection of two prediction results was obtained. The online databases http://www. geneontology.org and http://www.genome.ad.jp/kegg performed functional enrichment analysis and signal pathway enrichment analysis of target genes. Results Functional enrichment analysis indicated that the target genes of circRNAs mainly involved cell development, cell differentiation and cell development regulation. The signal enrichment analysis of the Tokyo Gene and Genome Encyclopedia indicates that transcriptional misregulation in cancer and mitogen-activated protein kinase (MAPK) signaling pathway are most meaningful, and the MAPK signaling pathway is found to be the core pathway. This study showed that hypoxic preconditioning caused significant changes in the expression of mesenchymal stem cell circRNAs. Conclusion The changes of circular RNAs in hypoxia-preconditioned human placental chorionic mesenchymal stem cell is closely related to the biological characteristics of hypoxia-preconditioned mesenchymal stem cells. This study provides a new idea for understanding the molecular mechanism of hypoxic preconditioning affecting the changes of biological characteristics in mesenchymal stem cells.
论著

利用孤雌激活评估ICSI后未成熟卵母细胞的利用价值

Evaluate the utility value of immature oocytes during ICSI by parthenogenetic activation

:40-44
 
目的 本研究以ICSI后未成熟卵母细胞为研究对象,分析比较卵母细胞不同发育阶段冷冻对其后续效果的影响,评估ICSI后未成熟卵母细胞的利用价值。方法 未成熟卵母细胞直接成熟培养(新鲜组)与玻璃化冷冻后成熟培养(冷冻组)的成熟率,并利用孤雌激活的方法比较卵母细胞的发育潜力。结果 发现新鲜组与冷冻组体外培养卵母细胞成熟率、受精率、卵裂率、优质胚胎率和囊胚率均无差异(P>0.05)。但两组的GV期卵母细胞成熟率低于MI期(P<0.05),且冷冻组的GV期卵母细胞受精率低于MI期(P<0.05)。不过裸卵体外成熟培养效果欠佳,特别是对GV期卵母细胞,体外成熟培养后的卵母细胞发育潜力低下,无囊胚形成。结论 ICSI后未成熟卵母细胞的冷冻对卵母细胞的发育潜力没有明显影响,但体外成熟培养的卵母细胞发育潜力低下,有待进一步提高体外成熟培养技术。
Objective In this study, the immature oocytes after ICSI were used to analyze the effects of freezing on the subsequent development of oocytes at different developmental stages, and to evaluate the utilization value of immature oocytes after ICSI(intracytoplasmic sperm injection). Methods The immature oocytes was directly cultured (fresh group) and matured after vitrification (frozen group), and the development potential of the oocytes was compared by parthenogenetic activation. Results There was no significant difference in the oocyte maturation rate, fertilization rate, embryo cleavage rate, high quality embryo rate and blastocyst rate between the fresh and frozen groups (P>0.05). However, the maturation rate of GV oocytes in the two groups was lower than MI oocytes (P<0.05), and the fertilization rate of GV oocytes in the frozen group was lower than MI oocytes (P<0.05). However, the in vitro maturation of naked oocytes was not effective, especially for GV oocytes, the oocyte development potential after in vitro maturation was low, there was no blastocyst formation. Conclusion The freezing of immature oocytes after ICSI has no significant effect on the development potential, but the development potential of naked oocytes matured in vitro was low, and the in vitro maturation culture technology of naked oocyte needs to be further improved.
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