目的:研究神经元特异性烯醇化酶(NSE)在宫内窘迫新生儿脑损伤早期的变化。方法:选取2015年1月—2018年7月广州市南方医科大学南方医院收治的62例宫内窘迫新生儿作为研究对象,依据出生第1天NSE水平是否>30.0μg/L分为低水平组与高水平...目的:研究神经元特异性烯醇化酶(NSE)在宫内窘迫新生儿脑损伤早期的变化。方法:选取2015年1月—2018年7月广州市南方医科大学南方医院收治的62例宫内窘迫新生儿作为研究对象,依据出生第1天NSE水平是否>30.0μg/L分为低水平组与高水平组,各31例。两组均接受头颅MRI、NSE检查,比较不同时间点情况。结果:低水平组出生后1、4、7 d NSE水平低于高水平组,差异有统计学意义(P<0.05)。低水平组出生后7、14 d新生儿神经行为测定评分高于高水平组,差异有统计学意义(P<0.05)。低水平组头颅MRI检查异常信号阳性率低于高水平组,差异有统计学意义(P=0.019)。结论:早期NSE水平较高时,多数宫内窘迫新生儿脑损伤情况较为严重,提示NSE水平可为宫内窘迫新生儿脑损伤的早期诊断提供参考依据。展开更多
Currently,human health due to corona virus disease 2019(COVID-19)pandemic has been seriously threatened.The coronavirus severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)spike(S)protein plays a crucial role i...Currently,human health due to corona virus disease 2019(COVID-19)pandemic has been seriously threatened.The coronavirus severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)spike(S)protein plays a crucial role in virus transmission and several S-based therapeutic approaches have been approved for the treatment of COVID-19.However,the efficacy is compromised by the SARS-CoV-2 evolvement and mutation.Here we report the SARS-CoV-2 S protein receptor-binding domain(RBD)inhibitor licorice-saponin A3(A3)could widely inhibit RBD of SARS-CoV-2 variants,including Beta,Delta,and Omicron BA.1,XBB and BQ1.1.Furthermore,A3 could potently inhibit SARS-CoV-2 Omicron virus in Vero E6 cells,with EC50 of 1.016μM.The mechanism was related to binding with Y453 of RBD determined by hydrogen-deuterium exchange mass spectrometry(HDX-MS)analysis combined with quantum mechanics/molecular mechanics(QM/MM)simulations.Interestingly,phosphoproteomics analysis and multi fluorescent immunohistochemistry(mIHC)respectively indicated that A3 also inhibits host inflammation by directly modulating the JNK and p38 mitogen-activated protein kinase(MAPK)pathways and rebalancing the corresponding immune dysregulation.This work supports A3 as a promising broad-spectrum small molecule drug candidate for COVID-19.展开更多
BACKGROUND Lung cancer(LC)is the leading cause of malignancy-related deaths worldwide.The most common sites of metastasis include the nervous system,bone,liver,respiratory system,and adrenal glands.LC metastasis in th...BACKGROUND Lung cancer(LC)is the leading cause of malignancy-related deaths worldwide.The most common sites of metastasis include the nervous system,bone,liver,respiratory system,and adrenal glands.LC metastasis in the parotid gland is very rare,and its diagnosis presents a challenge.Here,we report a case of parotid metastasis in primary LC.CASE SUMMARY The patient was a 74-year-old male who was discovered to have bilateral facial asymmetry inadvertently two years ago.The right earlobe was slightly swollen and without pain or numbness.Computed tomography(CT)examination showed bilateral lung space-occupying lesions.Pulmonary biopsy was performed and revealed adenocarcinoma(right-upper-lung nodule tissue).Positron emission tomography-CT examination showed:(1)Two hypermetabolic nodules in the right upper lobe of the lung,enlarged hy-permetabolic lymph nodes in the right hilar and mediastinum,and malignant space-occupying lesion in the right upper lobe of the lung and possible metastasis to the right hilar and mediastinal lymph nodes;and(2)multiple hypermetabolic nodules in bilateral parotid glands.Parotid puncture biopsy was performed considering lung adenocarcinoma metastasis.Gene detection of lung biopsy specimens revealed an EGFR gene 21 exon L858R mutation.CONCLUSION This case report highlights the challenging diagnosis of parotid metastasis in LC given its rare nature.Such lesions should be differentiated from primary tumors of the parotid gland.Simple radiological imaging is unreliable,and puncture biopsy is needed for final diagnosis of this condition.展开更多
塞内卡谷病毒(Seneca valley virus)也称塞内卡病毒A(Senecavirus A,SVA),农业农村部称之为塞内卡病毒,是全球新发和新传入我国的病毒,是2015年小RNA病毒科新增的塞内卡病毒属的唯一成员,其感染猪引发的临床症状与口蹄疫难以区分。2014...塞内卡谷病毒(Seneca valley virus)也称塞内卡病毒A(Senecavirus A,SVA),农业农村部称之为塞内卡病毒,是全球新发和新传入我国的病毒,是2015年小RNA病毒科新增的塞内卡病毒属的唯一成员,其感染猪引发的临床症状与口蹄疫难以区分。2014年之前,SVA仅在美国和加拿大零星发生.展开更多
文摘目的:研究神经元特异性烯醇化酶(NSE)在宫内窘迫新生儿脑损伤早期的变化。方法:选取2015年1月—2018年7月广州市南方医科大学南方医院收治的62例宫内窘迫新生儿作为研究对象,依据出生第1天NSE水平是否>30.0μg/L分为低水平组与高水平组,各31例。两组均接受头颅MRI、NSE检查,比较不同时间点情况。结果:低水平组出生后1、4、7 d NSE水平低于高水平组,差异有统计学意义(P<0.05)。低水平组出生后7、14 d新生儿神经行为测定评分高于高水平组,差异有统计学意义(P<0.05)。低水平组头颅MRI检查异常信号阳性率低于高水平组,差异有统计学意义(P=0.019)。结论:早期NSE水平较高时,多数宫内窘迫新生儿脑损伤情况较为严重,提示NSE水平可为宫内窘迫新生儿脑损伤的早期诊断提供参考依据。
基金supported by National Natural Science Foundation of China(Grant Nos.:81891010/81891011,81725023,82003614,82173950,31770192,32070187,32161133003 and 82003681)China Postdoctoral Science Foundation(Grant No:2022T150029).
文摘Currently,human health due to corona virus disease 2019(COVID-19)pandemic has been seriously threatened.The coronavirus severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)spike(S)protein plays a crucial role in virus transmission and several S-based therapeutic approaches have been approved for the treatment of COVID-19.However,the efficacy is compromised by the SARS-CoV-2 evolvement and mutation.Here we report the SARS-CoV-2 S protein receptor-binding domain(RBD)inhibitor licorice-saponin A3(A3)could widely inhibit RBD of SARS-CoV-2 variants,including Beta,Delta,and Omicron BA.1,XBB and BQ1.1.Furthermore,A3 could potently inhibit SARS-CoV-2 Omicron virus in Vero E6 cells,with EC50 of 1.016μM.The mechanism was related to binding with Y453 of RBD determined by hydrogen-deuterium exchange mass spectrometry(HDX-MS)analysis combined with quantum mechanics/molecular mechanics(QM/MM)simulations.Interestingly,phosphoproteomics analysis and multi fluorescent immunohistochemistry(mIHC)respectively indicated that A3 also inhibits host inflammation by directly modulating the JNK and p38 mitogen-activated protein kinase(MAPK)pathways and rebalancing the corresponding immune dysregulation.This work supports A3 as a promising broad-spectrum small molecule drug candidate for COVID-19.
文摘BACKGROUND Lung cancer(LC)is the leading cause of malignancy-related deaths worldwide.The most common sites of metastasis include the nervous system,bone,liver,respiratory system,and adrenal glands.LC metastasis in the parotid gland is very rare,and its diagnosis presents a challenge.Here,we report a case of parotid metastasis in primary LC.CASE SUMMARY The patient was a 74-year-old male who was discovered to have bilateral facial asymmetry inadvertently two years ago.The right earlobe was slightly swollen and without pain or numbness.Computed tomography(CT)examination showed bilateral lung space-occupying lesions.Pulmonary biopsy was performed and revealed adenocarcinoma(right-upper-lung nodule tissue).Positron emission tomography-CT examination showed:(1)Two hypermetabolic nodules in the right upper lobe of the lung,enlarged hy-permetabolic lymph nodes in the right hilar and mediastinum,and malignant space-occupying lesion in the right upper lobe of the lung and possible metastasis to the right hilar and mediastinal lymph nodes;and(2)multiple hypermetabolic nodules in bilateral parotid glands.Parotid puncture biopsy was performed considering lung adenocarcinoma metastasis.Gene detection of lung biopsy specimens revealed an EGFR gene 21 exon L858R mutation.CONCLUSION This case report highlights the challenging diagnosis of parotid metastasis in LC given its rare nature.Such lesions should be differentiated from primary tumors of the parotid gland.Simple radiological imaging is unreliable,and puncture biopsy is needed for final diagnosis of this condition.
文摘塞内卡谷病毒(Seneca valley virus)也称塞内卡病毒A(Senecavirus A,SVA),农业农村部称之为塞内卡病毒,是全球新发和新传入我国的病毒,是2015年小RNA病毒科新增的塞内卡病毒属的唯一成员,其感染猪引发的临床症状与口蹄疫难以区分。2014年之前,SVA仅在美国和加拿大零星发生.
