J Peiodontal Res:黄芩素通过Nrf2抗氧化信号通路在治疗糖尿病实验性牙周炎中的作用

2020-06-05 网络 网络

氧化应激已被认为是糖尿病慢性牙周炎(CPDM)的一个重要致病因素,而核因子相关因子2(Nrf2)在细胞防御氧化应激中发挥着重要作用。有研究提出黄芩素(BCI)在氧化应激相关疾病中的潜在治疗特性。

氧化应激已被认为是糖尿病慢性牙周炎(CPDM)的一个重要致病因素,而核因子相关因子2(Nrf2)在细胞防御氧化应激中发挥着重要作用。有研究提出黄芩素(BCI)在氧化应激相关疾病中的潜在治疗特性;然而,BCI在治疗CPDM患者的抗氧化作用仍未阐明。本研究旨在确定BCI是否通过调节Nrf2信号通路来抑制糖尿病相关的牙周组织破坏。

本实验采用高葡萄糖(HG,25 mmol/L)和/或脂多糖(LPS,20ug/mL)处理人牙龈上皮细胞(hGECs)。通过荧光激活细胞分选法检测活性氧(ROS)。通过实时PCR检测抗氧化相关基因的变化,包括Nrf2、过氧化氢酶(Cat)、谷氨酸半胱氨酸连接酶催化亚基(Gclc)、超氧化物歧化酶1(Sod1)和超氧化物歧化酶2(Sod2)等。通过免疫荧光染色和激光扫描共聚焦显微镜(LSCM)检测细胞核中磷酸化-Nrf2(pNrf2, S40)的定位。采用Western blot法测定PNrf2和Nrf2。用HGECs+LPS(GP)刺激前,用不同浓度的BCI(0.01/0.1/0.1/0.5ug/mL)预处理后HGECs,检测上述指标与线粒体膜电位(MMP)。最后,在SD大鼠的CPDM模型中检测BCI在激活Nrf2信号通路和抑制牙槽骨吸收方面的作用。CPDM大鼠口服BCI(每日50/100/200 mg/kg)。通过免疫组织化学检测pNrf2,并通过显微计算机断层扫描检查牙槽骨吸收情况。

结果显示,HG和LPS组的ROS均显着升高,其中GP组的ROS生成最多。在ROS相关基因的表达方面,HG组和LPS组中Nrf2、Cat、Gclc、Sod1和Sod2的mRNA水平均显着降低。在GP组中ROS诱导作用最强的情况下,与HG组和LPS组相比,GP组的基因表达进一步降低。此外,pNrf2的表达与这些抗氧化基因的表达呈现出相同的趋势。然而,不同浓度的BCI(0.01/0.1/0.5ug/mL)预处理后,GP诱导的ROS的产生和线粒体膜电位的作用均被抑制。并且,BCI促进了pNrf2的核转位,以及pNrf2及其靶基因(Cat、Gclc、Sod1和Sod2)的基因表达水平。BCI(浓度分别为50/100/200 mg/kg)明显增加了CPDM动物模型的牙周组织中pNrf2阳性细胞的数量,缓解了牙槽骨损失。

因此,BCI在CPDM条件下具有潜在的临床价值,为CPDM患者提供了一种新的治疗药物。

原文出处:

Chunhui Zhu,The therapeutic role of baicalein in combating experimental periodontitis with diabetes via Nrf2 antioxidant signaling pathway,journal of periodontal research,2020 June ,doi:10.1111/jre.12722

 

 

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    2020-09-05 lujian
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    2020-07-08 feather89
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  4. [GetPortalCommentsPageByObjectIdResponse(id=2040771, encodeId=50412040e7184, content=<a href='/topic/show?id=5887461103d' target=_blank style='color:#2F92EE;'>#实验性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=46110, encryptionId=5887461103d, topicName=实验性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3c5e117, createdName=lujian, createdTime=Sat Sep 05 08:17:45 CST 2020, time=2020-09-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1728531, encodeId=26e01e28531d9, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Wed Jul 08 16:17:45 CST 2020, time=2020-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2079590, encodeId=98d920e959070, content=<a href='/topic/show?id=21564611139' target=_blank style='color:#2F92EE;'>#实验性牙周炎#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=46111, encryptionId=21564611139, topicName=实验性牙周炎)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=ced3193, createdName=freve, createdTime=Wed Mar 24 17:17:45 CST 2021, time=2021-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1407707, encodeId=838a140e70763, content=<a href='/topic/show?id=7ee51303e38' target=_blank style='color:#2F92EE;'>#Nrf2#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13037, encryptionId=7ee51303e38, topicName=Nrf2)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c1842706563, createdName=minzju5053, createdTime=Sat Jun 06 16:17:45 CST 2020, time=2020-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1451279, encodeId=cf1914512e9fe, content=<a href='/topic/show?id=f0476e49582' target=_blank style='color:#2F92EE;'>#牙周#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67495, encryptionId=f0476e49582, topicName=牙周)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=医者仁心, createdTime=Sat Jun 06 16:17:45 CST 2020, time=2020-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1539775, encodeId=1a061539e75e4, content=<a href='/topic/show?id=c61a2e315da' target=_blank style='color:#2F92EE;'>#信号通路#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27315, encryptionId=c61a2e315da, topicName=信号通路)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b12d13147749, createdName=wgx310, createdTime=Sat Jun 06 16:17:45 CST 2020, time=2020-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=601463, encodeId=36e660146300, content=<a href='/topic/show?id=2cf1103194ef' target=_blank style='color:#2F92EE;'>#黄芩素#</a>有深度开发潜力,可以用于抗炎,对抗化疗副作用等, beContent=null, objectType=article, channel=null, level=null, likeNumber=104, replyNumber=1, topicName=null, topicId=null, topicList=[TopicDto(id=103194, encryptionId=2cf1103194ef, topicName=黄芩素)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20211210/ede9c51184aa4f54ae6c1164cfb8eeac/967dbf3eff2943c7bf3ccfec3a776ab0.JPG, createdBy=a33789389, createdName=lifefamily@163, createdTime=Fri Jun 05 08:26:53 CST 2020, time=2020-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1043148, encodeId=55de1043148df, content=谢谢MedSci提供最新的资讯, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=misszhang, createdTime=Fri Jun 05 04:17:45 CST 2020, time=2020-06-05, status=1, ipAttribution=)]
    2020-06-06 minzju5053
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  6. [GetPortalCommentsPageByObjectIdResponse(id=2040771, encodeId=50412040e7184, content=<a href='/topic/show?id=5887461103d' target=_blank style='color:#2F92EE;'>#实验性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=46110, encryptionId=5887461103d, topicName=实验性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3c5e117, createdName=lujian, createdTime=Sat Sep 05 08:17:45 CST 2020, time=2020-09-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1728531, encodeId=26e01e28531d9, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Wed Jul 08 16:17:45 CST 2020, time=2020-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2079590, encodeId=98d920e959070, content=<a href='/topic/show?id=21564611139' target=_blank style='color:#2F92EE;'>#实验性牙周炎#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=46111, encryptionId=21564611139, topicName=实验性牙周炎)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=ced3193, createdName=freve, createdTime=Wed Mar 24 17:17:45 CST 2021, time=2021-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1407707, encodeId=838a140e70763, content=<a href='/topic/show?id=7ee51303e38' target=_blank style='color:#2F92EE;'>#Nrf2#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13037, encryptionId=7ee51303e38, topicName=Nrf2)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c1842706563, createdName=minzju5053, createdTime=Sat Jun 06 16:17:45 CST 2020, time=2020-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1451279, encodeId=cf1914512e9fe, content=<a href='/topic/show?id=f0476e49582' target=_blank style='color:#2F92EE;'>#牙周#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67495, encryptionId=f0476e49582, topicName=牙周)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=医者仁心, createdTime=Sat Jun 06 16:17:45 CST 2020, time=2020-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1539775, encodeId=1a061539e75e4, content=<a href='/topic/show?id=c61a2e315da' target=_blank style='color:#2F92EE;'>#信号通路#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27315, encryptionId=c61a2e315da, topicName=信号通路)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b12d13147749, createdName=wgx310, createdTime=Sat Jun 06 16:17:45 CST 2020, time=2020-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=601463, encodeId=36e660146300, content=<a href='/topic/show?id=2cf1103194ef' target=_blank style='color:#2F92EE;'>#黄芩素#</a>有深度开发潜力,可以用于抗炎,对抗化疗副作用等, beContent=null, objectType=article, channel=null, level=null, likeNumber=104, replyNumber=1, topicName=null, topicId=null, topicList=[TopicDto(id=103194, encryptionId=2cf1103194ef, topicName=黄芩素)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20211210/ede9c51184aa4f54ae6c1164cfb8eeac/967dbf3eff2943c7bf3ccfec3a776ab0.JPG, createdBy=a33789389, createdName=lifefamily@163, createdTime=Fri Jun 05 08:26:53 CST 2020, time=2020-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1043148, encodeId=55de1043148df, content=谢谢MedSci提供最新的资讯, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=misszhang, createdTime=Fri Jun 05 04:17:45 CST 2020, time=2020-06-05, status=1, ipAttribution=)]
  7. [GetPortalCommentsPageByObjectIdResponse(id=2040771, encodeId=50412040e7184, content=<a href='/topic/show?id=5887461103d' target=_blank style='color:#2F92EE;'>#实验性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=46110, encryptionId=5887461103d, topicName=实验性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3c5e117, createdName=lujian, createdTime=Sat Sep 05 08:17:45 CST 2020, time=2020-09-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1728531, encodeId=26e01e28531d9, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Wed Jul 08 16:17:45 CST 2020, time=2020-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2079590, encodeId=98d920e959070, content=<a href='/topic/show?id=21564611139' target=_blank style='color:#2F92EE;'>#实验性牙周炎#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=46111, encryptionId=21564611139, topicName=实验性牙周炎)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=ced3193, createdName=freve, createdTime=Wed Mar 24 17:17:45 CST 2021, time=2021-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1407707, encodeId=838a140e70763, content=<a href='/topic/show?id=7ee51303e38' target=_blank style='color:#2F92EE;'>#Nrf2#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13037, encryptionId=7ee51303e38, topicName=Nrf2)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c1842706563, createdName=minzju5053, createdTime=Sat Jun 06 16:17:45 CST 2020, time=2020-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1451279, encodeId=cf1914512e9fe, content=<a href='/topic/show?id=f0476e49582' target=_blank style='color:#2F92EE;'>#牙周#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67495, encryptionId=f0476e49582, topicName=牙周)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=医者仁心, createdTime=Sat Jun 06 16:17:45 CST 2020, time=2020-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1539775, encodeId=1a061539e75e4, content=<a href='/topic/show?id=c61a2e315da' target=_blank style='color:#2F92EE;'>#信号通路#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27315, encryptionId=c61a2e315da, topicName=信号通路)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b12d13147749, createdName=wgx310, createdTime=Sat Jun 06 16:17:45 CST 2020, time=2020-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=601463, encodeId=36e660146300, content=<a href='/topic/show?id=2cf1103194ef' target=_blank style='color:#2F92EE;'>#黄芩素#</a>有深度开发潜力,可以用于抗炎,对抗化疗副作用等, beContent=null, objectType=article, channel=null, level=null, likeNumber=104, replyNumber=1, topicName=null, topicId=null, topicList=[TopicDto(id=103194, encryptionId=2cf1103194ef, topicName=黄芩素)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20211210/ede9c51184aa4f54ae6c1164cfb8eeac/967dbf3eff2943c7bf3ccfec3a776ab0.JPG, createdBy=a33789389, createdName=lifefamily@163, createdTime=Fri Jun 05 08:26:53 CST 2020, time=2020-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1043148, encodeId=55de1043148df, content=谢谢MedSci提供最新的资讯, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=misszhang, createdTime=Fri Jun 05 04:17:45 CST 2020, time=2020-06-05, status=1, ipAttribution=)]
    2020-06-05 lifefamily@163

    #黄芩素#有深度开发潜力,可以用于抗炎,对抗化疗副作用等

    1

    展开1条回复
  8. [GetPortalCommentsPageByObjectIdResponse(id=2040771, encodeId=50412040e7184, content=<a href='/topic/show?id=5887461103d' target=_blank style='color:#2F92EE;'>#实验性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=40, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=46110, encryptionId=5887461103d, topicName=实验性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3c5e117, createdName=lujian, createdTime=Sat Sep 05 08:17:45 CST 2020, time=2020-09-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1728531, encodeId=26e01e28531d9, content=<a href='/topic/show?id=986913980dd' target=_blank style='color:#2F92EE;'>#PE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13980, encryptionId=986913980dd, topicName=PE)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f06c33759375, createdName=feather89, createdTime=Wed Jul 08 16:17:45 CST 2020, time=2020-07-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2079590, encodeId=98d920e959070, content=<a href='/topic/show?id=21564611139' target=_blank style='color:#2F92EE;'>#实验性牙周炎#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=46111, encryptionId=21564611139, topicName=实验性牙周炎)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=ced3193, createdName=freve, createdTime=Wed Mar 24 17:17:45 CST 2021, time=2021-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1407707, encodeId=838a140e70763, content=<a href='/topic/show?id=7ee51303e38' target=_blank style='color:#2F92EE;'>#Nrf2#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13037, encryptionId=7ee51303e38, topicName=Nrf2)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c1842706563, createdName=minzju5053, createdTime=Sat Jun 06 16:17:45 CST 2020, time=2020-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1451279, encodeId=cf1914512e9fe, content=<a href='/topic/show?id=f0476e49582' target=_blank style='color:#2F92EE;'>#牙周#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=67495, encryptionId=f0476e49582, topicName=牙周)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=医者仁心, createdTime=Sat Jun 06 16:17:45 CST 2020, time=2020-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1539775, encodeId=1a061539e75e4, content=<a href='/topic/show?id=c61a2e315da' target=_blank style='color:#2F92EE;'>#信号通路#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27315, encryptionId=c61a2e315da, topicName=信号通路)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b12d13147749, createdName=wgx310, createdTime=Sat Jun 06 16:17:45 CST 2020, time=2020-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=601463, encodeId=36e660146300, content=<a href='/topic/show?id=2cf1103194ef' target=_blank style='color:#2F92EE;'>#黄芩素#</a>有深度开发潜力,可以用于抗炎,对抗化疗副作用等, beContent=null, objectType=article, channel=null, level=null, likeNumber=104, replyNumber=1, topicName=null, topicId=null, topicList=[TopicDto(id=103194, encryptionId=2cf1103194ef, topicName=黄芩素)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20211210/ede9c51184aa4f54ae6c1164cfb8eeac/967dbf3eff2943c7bf3ccfec3a776ab0.JPG, createdBy=a33789389, createdName=lifefamily@163, createdTime=Fri Jun 05 08:26:53 CST 2020, time=2020-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1043148, encodeId=55de1043148df, content=谢谢MedSci提供最新的资讯, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=misszhang, createdTime=Fri Jun 05 04:17:45 CST 2020, time=2020-06-05, status=1, ipAttribution=)]
    2020-06-05 misszhang

    谢谢MedSci提供最新的资讯

    0

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