51
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Li M, Hu L, Ji Y. P–057 Preliminary evaluation of laser confocal Raman spectroscopy as a noninvasive method for detecting sperm chromosome aneuploidy. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
To evaluate the efficiency and accuracy of Raman microspectra in detecting sperm chromosome balance state by DNA content difference.
Summary answer
Raman spectroscopy can identify the difference of X and Y sperm DNA content, but the accuracy still needed to be improved for clinical application.
What is known already
Aneuploid sperm fertilization affects embryo quality and leads to the waste of oocytes in Assisted Reproductive Technology (ART). Raman spectroscopy can identify substances and observe molecular changes through specific spectral patterns with high specificity and has become a new hot spot in ART. Previous research has used this technology to detect embryo culture medium to evaluate the aneuploidy of embryos. The DNA content of X and Y in sperm was different, which may serve as a marker for sperm aneuploidy detection by Raman spectroscopy.
Study design, size, duration
The significant difference in the morphology of the sex chromosomes of X and Y spermatozoa leads to a substantial difference in the DNA content. We perform Raman spectroscopy to identify the spectral differences of the sperms, especially the differences in sperm DNA content. We further verified the accuracy with fluorescence in situ hybridization (FISH).
Participants/materials, setting, methods
Spermatozoa were provided by healthy donors with normal aneuploidy, and analysis parameters met the current World Health Organization (WHO, 2010) standards. Sperm heads were detected by laser confocal Raman spectroscopy and obtained the corresponding spectra. The sperm chromosome information was classified by Standard principal component analysis (PCA) and identified by fluorescence in situ hybridization (FISH). Student’s t-test and Receiver operating characteristic (ROC) curve analysis was performed for further analysis.
Main results and the role of chance
Standard principal component analysis (PCA) after unqualified quality control divided spermatozoa into two groups according to the calculation and calibration results, 22 cases in group A and 31 cases in group B. Then, we conducted frequency distribution histogram statistics on the above data, and the results showed that there were differences in frequency distribution at I785 = 23,750 and Area714 –1162 = 3,250,000. The FISH analysis identified sex chromosomes of 59 spermatozoa, which was not exactly one-to-one correspondence with the results of PCA analysis. Then we further analyzed the sperm of 59 cases by statistical analysis. The results showed that there were significant differences between X sperm (n = 39) and Y sperm (n = 20) at 714–1162 cm–1 and 785 (P < 0.05). ROC curve analysis was used to evaluate the sensitivity of correlation between sperm DNA content and Raman spectra. The results showed that the corresponding thresholds of I785 = 24,986.5 and Area714–1162 cm–1 = 3,748,990 were the best for distinguishing the two kinds of sperm. When the sperm’s peak value of 785 or 714–1162cm–1 exceeds the above thresholds, X-sperm’s possibility greatly increased. The AUC of the ROC curve in both cases was 0.662 and 0.696, respectively.
Limitations, reasons for caution
Current Raman spectroscopy requires spermatozoa elution and fixation, which damage the sperms. Furthermore, current Raman spectral data are not obtained from the whole sperm head, limiting the accuracy of this technique.
Wider implications of the findings: Our results indicated that Raman spectroscopy had potential application value for sperm aneuploidy detection and could be used as a noninvasive selector for normal haploid sperms in the ART.
Trial registration number
LL-SC–2018–038
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Affiliation(s)
- M Li
- Central South University, Institute of Reproductive and Stem Cell Engineering- School of Basic Medical Science, changsha, China
| | - L Hu
- Central South University, Institute of Reproductive and Stem Cell Engineering- School of Basic Medical Science, changsha, China
| | - Y Ji
- Central South University, Institute of Reproductive and Stem Cell Engineering- School of Basic Medical Science, changsha, China
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52
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Ji Y, Hu L. P–217 The mitochondrial DNA copy number of cumulus granulosa cells is associated with the symmetry of cleavage embryo but not blastocyst quality. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
To study the relationship between mitochondrial DNA copy number of cumulus granulosa cells (CGCs-mtDNA) and the quality of early embryos.
Summary answer
CGCs-mtDNA was related to the symmetry of cleavage. However, CGCs-mtDNA was not associated with fertilization, blastocysts quality, or blastocysts euploidy.
What is known already
The potential of early embryonic development mainly depends on the quality of oocytes to a large extent. Mitochondria of CGCs are directly involved in the establishment of oocytes capacitation during oocytes maturation and development.
Study design, size, duration
This is a retrospective study from December 2018 to January 2019, involving a total of 283 CGCs surrounding Metaphase II oocytes from 49 patients who underwent preimplantation genetic testing for aneuploidy (PGT-A) at the Reproductive and Genetic Hospital of CITIC-Xiangya.
Participants/materials, setting, methods
We used the TaqMan probes to quantitatively detect mitochondrial DNA copy number of per CGCs by quantitative PCR in mitochondrial genes (MT-ND1 and MT-CO1) and a nuclear gene (β-globin). Besides, according to the nature of the dependent variable, the binary logistic regression model and the logistic regression analysis model of ordered multi-classification were used for multivariate statistical analysis.
Main results and the role of chance
The CGCs-mtDNA corresponding to fertilized eggs was not different from that of unfertilized eggs in MT-ND1 gene and MT-CO1 gene (MT-ND1: fertilized vs. unfertilized, 600±337 vs. 604±367, P = 0.593; MT-CO1: fertilized vs. unfertilized, 1336±531 vs. 1329±478, P = 0.938). Interestingly, we found that the CGCs-mtDNA of D3 embryos with good quality was statistically higher than that of D3 embryos with fair or poor quality for MT-ND1 gene and MT-CO1 gene (MT-ND1: good quality vs. fair/poor quality, 803±627 vs. 587±307, P = 0.028; MT-CO1: good quality vs. fair/poor quality, 1682±554 vs. 1374±702, P = 0.025). Moreover, the CGCs-mtDNA corresponding to D3 embryos with even cleavage was higher than that of D3 embryos with uneven cleavage (MT-ND1: even cleavage vs. uneven cleavage, 803±627 vs. 590±309, P = 0.036; MT-CO1: even cleavage vs. uneven cleavage, 1562±552 vs. 1316±525, P = 0.037). Besides, we investigated the difference among the CGCs-mtDNA in blastocysts with the good quality, blastocysts with fair or poor quality, and the developmental blocked embryos before the blastocyst stage. But we didn’t found any difference among the above three groups (MT-ND1: P = 0.531; MT-CO1: P = 0.609). In the study of the relationship between CGCs-mtDNA and blastocysts euploidy, we got similar results (MT-ND1: P = 0.602; MT-CO1: P = 0.570).
Limitations, reasons for caution
The sample size of this study was relatively small.
Wider implications of the findings: Although the sample size of this study is limited, our results indicated the importance of mitochondria in CGCs in early embryo development, especially in the first three days. The investigation of mitochondrial function in CGCs may shed light on the mechanism of CGCs-oocyte crosstalk.
Trial registration number
LL-SC–2019–005
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Affiliation(s)
- Y Ji
- School of Basic Medical Science- Central South University- Hunan- China, Institute of Reproductive and Stem Cell Engineering, Changsha, China
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53
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Dang T, Xie P, Hu L, Tan Y, Lin G. P-525 Analysis of segregation patterns of trivalent structure and the effect on genome stability in Robertsonian translocation carriers. Hum Reprod 2021. [DOI: 10.1093/humrep/deab125.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Study question
What are the factors that affect the separation pattern of Robertsonian translocation trivalent, and whether the structure of the trivalent affected the chromosome stability?
Summary answer
The meiotic segregation modes can be affected by the carrier’s sex and special chromosome, and a trivalent structure can affect the stability of the genome.
What is known already
Robertson translocation occurs when two proximal acrocentric chromosomes fuse at the centromere, and forms a trivalent structure during meiosis. This structure will affect the fertility of Robertsonian translocation carriers, and may destroy the stability of the genome by affecting the separation of other chromosomes, which is called Inter-Chromosomal Effect (ICE). Previous research have confirmed that the use of PGT in Robertsonian translocation carriers can effectively reduce abortion and increase live birth. But some studies dispute this conclusion and the existence of ICE. However, there is no large data study to verify these controversies.
Study design, size, duration
PGT results of 928 oocyte retrieval cycles in 763 couples(one of the couples is a Robertsonian translocation carrier) were analysied from December 2012 to June 2020. A total of 1492 couples who received PGT-A were collected as control group, and matched according to age and testing time stage. The study was approved by the ethics committee(LL-SC-SG-2006-008 and LL-SC-SG-2014-016).
Participants/materials, setting, methods
Cytogenetic analysis was performed using GTG standard method (trypsin and GiemsaG banding) to analyze the chromosomes of peripheral blood lymphocytes. Blastocysts obtained by standard IVF procedure were biopsied on the 5th or 6th morning after fertilization, and the trophoblast cells were amplified by PicoPLEX whole genome amplification kit (Rubicon Genology) or Repli-g Single Cell Kit(Qiagen). PGT-SR was performed using SNP array or NGS as previously described.
Main results and the role of chance
In this study, a total of 3423 blastocysts from 763 couples were analysed using SNP-array or NGS. Among them, the rate of alternate segregation of male Robertsonian translocation carriers was significantly higher than that in female carriers (82.26% vs 59.96%, P < 0.001), and meiotic segregation modes could be affected by the special chromosome such as 13 in female(P = 0.042) and 15 in male(P = 0.045) involved. A trivalent structure can affect the stability of the genome during mitosis, which is associated with an increase in the propotion of chromosome mosaic compared with the PGT-A control group(1.18% vs 0.53%, P < 0.01). In addition, we found an interesting phenomenon: in the meiotic segregation of female Robertsonian translocation carriers associated with chromosomes 21 and 22, the chromosome 21 or 22 of the two chromosomes involved in translocation are more likely to be abnormal, and according to our results, the effect of chromosome 21 seems to be greater.
Limitations, reasons for caution
(1) Limitations of retrospective analysis; (2) The results are not fully representative of the general population; (3) PGT-A patients always had repeated implantation failure or recurrent aboration, which may cause deviation to the results.
Wider implications of the findings
This study analyzed the influencing factors of the separation patterns of trivalent, and verified the existence of ICE. This suggest that PGT-SR can have a better outcome in patients with Robertsonian translocation, especially in male carriers. These results will provide carrier couple with more appropriate genetic counseling.
Trial registration number
no
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Affiliation(s)
- T Dang
- Hunan Normal University, Hunan Guangxiu Hospital, Changsha, China
| | - P Xie
- Hunan Normal University School of Medicine, Genetics, Changsha, China
- National Engineering and Research Center of Human Stem Cell, Genetics, Changsha, China
| | - L Hu
- National Engineering and Research Center of Human Stem Cell, Genetics, Changsha, China
- Central South University, Laboratory of Reproductive and Stem Cell Engineering- key lab National Health and Family Planning Commission, Changsha, China
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - Y Tan
- Central South University, Laboratory of Reproductive and Stem Cell Engineering- key lab National Health and Family Planning Commission, Changsha, China
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - G Lin
- National Engineering and Research Center of Human Stem Cell, Genetics, Changsha, China
- Central South University, Laboratory of Reproductive and Stem Cell Engineering- key lab National Health and Family Planning Commission, Changsha, China
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
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54
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Dai J, Zhang T, Guo J, Zhou Q, Gu Y, Zhang J, Hu L, Zong Y, Song J, Zhang S, Dai C, Gong F, Lu G, Zheng W, Lin G. P–568 Homozygous Pathogenic Variants in ACTL9 Cause Fertilization Failure and Male Infertility in Human and Mouse. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Study question
What are the other male factors that cause total fertilization failure (TFF) excepting for variants in PLCZ1?
Summary answer
Homozygous variants in ACTL9 (actin like 9) cause abnormal localization of PLCζ in a loosened perinuclear theca (PT) structure and leads to TFF.
What is known already
In previous studies, investigators have reported that the female factors in TFF after intracytoplasmic sperm injection (ICSI) include pathogenic variants in WEE2, TLE6, and TUBB8, whereas for male factors, pathogenic variants in PLCZ1 were reported to be the primary cause of TFF, which account for approximately 30% of couples with male factors in TFF excluding globozoospermia. Most recently, it was reported that pathogenic variants in ACTL7A led to reduced expression and abnormal localization of PLCζ, thereby identifying this genetic variant as a potential cause of TFF.
Study design, size, duration
Fifty-four infertile couples with TFF or poor fertilization (fertilization rate of < 20%) at the Reproductive and Genetic Hospital of CITIC-Xiangya during January 2014 to June 2020 were recruited into this study.
Participants/materials, setting, methods
Male factors were identified in (MOAT). WES analysis was used to analyze the genetic factors of individuals with male factors. Sperm morphological study was conducted by H&E staining and TEM. Immunostaining of PLCζ was used to analyze the status of sperm-borne activation factor. A knock-in mouse model was generated by CRISPER-Cas9 technology. Sperm from homozygous Actl9 variant mice were analyzed by TEM and ICSI. ICSI with AOA was performed in couples with ACTL9 variants.
Main results and the role of chance
A total of 54 couples with TFF or poor fertilization were screened, with 21 couples determined to have a male infertility factor by MOAT. Whole-exome sequencing of these 21 male individuals identified three homozygous pathogenic variants in ACTL9 in three individuals. ACTL9 variations led to abnormal ultrastructure of the PT, with PLCζ absent in the head and present in the neck of the mutant sperm, which contributed to failed normal calcium oscillations in oocytes and subsequent TFF. The key roles of ACTL9 in the PT structure and TFF after ICSI were further confirmed in Actl9-mutated mouse model. Furthermore, assisted oocyte activation by calcium ionophore exposure successfully overcame TFF and achieved live births in a couple with an ACTL9 variant.
Limitations, reasons for caution
The mechanism of how ACTL9 regulate PLCζ remains unknown.
Wider implications of the findings: It provided a genetic marker and a therapeutic option for individuals who have undergone ICSI without successful fertilization.
Trial registration number
not applioable
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Affiliation(s)
- J Dai
- Central South University, School of basic medicine, Changsha, China
| | - T Zhang
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - J Guo
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - Q Zhou
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - Y Gu
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - J Zhang
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - L Hu
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - Y Zong
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - J Song
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - S Zhang
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - C Dai
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - F Gong
- Central South University, School of basic medicine, Changsha, China
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - G Lu
- Central South University, School of basic medicine, Changsha, China
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - W Zheng
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - G Lin
- Central South University, School of basic medicine, Changsha, China
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55
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Dang T, Xie P, Hu L, Tan Y, Lin G. P–525 Analysis of segregation patterns of trivalent structure and the effect on genome stability in Robertsonian translocation carriers. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Study question
What are the factors that affect the separation pattern of Robertsonian translocation trivalent, and whether the structure of the trivalent affected the chromosome stability?
Summary answer
The meiotic segregation modes can be affected by the carrier’s sex and special chromosome, and a trivalent structure can affect the stability of the genome.
What is known already
Robertson translocation occurs when two proximal acrocentric chromosomes fuse at the centromere, and forms a trivalent structure during meiosis. This structure will affect the fertility of Robertsonian translocation carriers, and may destroy the stability of the genome by affecting the separation of other chromosomes, which is called Inter-Chromosomal Effect (ICE). Previous research have confirmed that the use of PGT in Robertsonian translocation carriers can effectively reduce abortion and increase live birth. But some studies dispute this conclusion and the existence of ICE. However, there is no large data study to verify these controversies.
Study design, size, duration
PGT results of 928 oocyte retrieval cycles in 763 couples(one of the couples is a Robertsonian translocation carrier) were analysied from December 2012 to June 2020. A total of 1492 couples who received PGT-A were collected as control group, and matched according to age and testing time stage. The study was approved by the ethics committee(LL-SC-SG–2006–008 and LL-SC-SG–2014–016).
Participants/materials, setting, methods
Cytogenetic analysis was performed using GTG standard method (trypsin and GiemsaG banding) to analyze the chromosomes of peripheral blood lymphocytes. Blastocysts obtained by standard IVF procedure were biopsied on the 5th or 6th morning after fertilization, and the trophoblast cells were amplified by PicoPLEX whole genome amplification kit (Rubicon Genology) or Repli-g Single Cell Kit(Qiagen). PGT-SR was performed using SNP array or NGS as previously described.
Main results and the role of chance
In this study, a total of 3423 blastocysts from 763 couples were analysed using SNP-array or NGS. Among them, the rate of alternate segregation of male Robertsonian translocation carriers was significantly higher than that in female carriers (82.26% vs 59.96%, P < 0.001), and meiotic segregation modes could be affected by the special chromosome such as 13 in female(P = 0.042) and 15 in male(P = 0.045) involved. A trivalent structure can affect the stability of the genome during mitosis, which is associated with an increase in the propotion of chromosome mosaic compared with the PGT-A control group(1.18% vs 0.53%, P < 0.01). In addition, we found an interesting phenomenon: in the meiotic segregation of female Robertsonian translocation carriers associated with chromosomes 21 and 22, the chromosome 21 or 22 of the two chromosomes involved in translocation are more likely to be abnormal, and according to our results, the effect of chromosome 21 seems to be greater.
Limitations, reasons for caution
(1) Limitations of retrospective analysis; (2) The results are not fully representative of the general population; (3) PGT-A patients always had repeated implantation failure or recurrent aboration, which may cause deviation to the results.
Wider implications of the findings: This study analyzed the influencing factors of the separation patterns of trivalent, and verified the existence of ICE. This suggest that PGT-SR can have a better outcome in patients with Robertsonian translocation, especially in male carriers. These results will provide carrier couple with more appropriate genetic counseling.
Trial registration number
no
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Affiliation(s)
- T Dang
- Hunan Normal University, Hunan Guangxiu Hospital, Changsha, China
| | - P Xie
- Hunan Normal University School of Medicine, Genetics, Changsha, China
- National Engineering and Research Center of Human Stem Cell, Genetics, Changsha, China
| | - L Hu
- National Engineering and Research Center of Human Stem Cell, Genetics, Changsha, China
- Central South University, Laboratory of Reproductive and Stem Cell Engineering- key lab National Health and Family Planning Commission, Changsha, China
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - Y Tan
- Central South University, Laboratory of Reproductive and Stem Cell Engineering- key lab National Health and Family Planning Commission, Changsha, China
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
| | - G Lin
- National Engineering and Research Center of Human Stem Cell, Genetics, Changsha, China
- Central South University, Laboratory of Reproductive and Stem Cell Engineering- key lab National Health and Family Planning Commission, Changsha, China
- Clinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
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56
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Wang YH, Zou ZG, Chen Z, Huang S, Xiong F, Hu L, Guo LC. [The heritability and potential molecular mechanism of Lynch syndrome based on next-generation sequencing]. Zhonghua Bing Li Xue Za Zhi 2021; 50:934-936. [PMID: 34344080 DOI: 10.3760/cma.j.cn112151-20201118-00847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y H Wang
- Department of Pathology, the First Affiliated Hospital of Soochow University, Suzhou 215000, Jiangsu Province, China
| | - Z G Zou
- Department of Pathology, the First Affiliated Hospital of Soochow University, Suzhou 215000, Jiangsu Province, China
| | - Z Chen
- Department of Pathology, the First Affiliated Hospital of Soochow University, Suzhou 215000, Jiangsu Province, China
| | - S Huang
- Department of Pathology, the First Affiliated Hospital of Soochow University, Suzhou 215000, Jiangsu Province, China
| | - F Xiong
- Department of Oncology, the First Affiliated Hospital of Soochow University, Suzhou 215000, Jiangsu Province, China
| | - L Hu
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou 215006, Jiangsu Province, China
| | - L C Guo
- Department of Pathology, the First Affiliated Hospital of Soochow University, Suzhou 215000, Jiangsu Province, China
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57
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Li J, Mao W, Li F, Ran L, Chang J, Mei F, Hu L, Du Y, Tian X, Shan L, Liu M, Chen Y, Mu J, Qin Y, Yin S, Liang N. PO-1306 apatinib plus capecitabine in patients of recurrent/metastatic and persistent cervical cancer. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07757-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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58
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Hu L, Jin Y, Lin M, Wei B. Temperature dependence of thermophysical properties for liquid Zr-Sn-Nb-Fe alloy measured at electrostatic levitation state. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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59
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Han J, Cai W, Hu L, Mu X, Ma Y, Xu Y, Wang W, Wang H, Song YP, Zou CL, Sun L. Experimental Simulation of Open Quantum System Dynamics via Trotterization. Phys Rev Lett 2021; 127:020504. [PMID: 34296922 DOI: 10.1103/physrevlett.127.020504] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 04/23/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
Digital quantum simulators provide a diversified tool for solving the evolution of quantum systems with complicated Hamiltonians and hold great potential for a wide range of applications. Although much attention is paid to the unitary evolution of closed quantum systems, dissipation and noise are vital in understanding the dynamics of practical quantum systems. In this work, we experimentally demonstrate a digital simulation of an open quantum system in a controllable Markovian environment with the assistance of a single ancillary qubit. By Trotterizing the quantum Liouvillians, the continuous evolution of an open quantum system is effectively realized, and its application in error mitigation is demonstrated by adjusting the simulated noise intensities. High-order Trotter for open quantum dynamics is also experimentally investigated and shows higher accuracy. Our results represent a significant step toward hardware-efficient simulation of open quantum systems and error mitigation in quantum algorithms in noisy intermediate-scale quantum systems.
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Affiliation(s)
- J Han
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - W Cai
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - L Hu
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - X Mu
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Y Ma
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Y Xu
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - W Wang
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - H Wang
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Y P Song
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - C-L Zou
- CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - L Sun
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
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60
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Zhang J, Hu L, Ji X, Wang Y, Huang F. POS0921 EFFICACY AND SAFETY OF ACEMETACIN IN THE TREATMENT OF 1215 ACTIVE ANKYLOSING SPONDYLITIS PATIENTS: DATA FROM A PROSPECTIVE COHORT MANAGED BY SMART-PHONE SPONDYLOARTHRITIS MANAGEMENT SYSTEM. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Biological DMARDs have widely used in the treatment of AS in last two decades, but NSAIDs still serves as a cornerstone in the treatment. Given the wide use of Acemetacin in AS and relative lack of clinical evidence on the selection of NSAIDs in the treatment of AS, the investigation on acemetacin treating AS is of great significance.Objectives:Our study aims to investigate efficacy and safety of acemetacin in the treatment of AS.Methods:Data on efficacy and safety is available in 1215 patients from the Chinese Ankylosing Spondylitis Imaging Cohort (CASPIC), which is collected through the Smart-phone SpondyloArthritis Management System (SpAMS)[1]. Patients’ self-assessments are completed online at baseline and every subsequent clinic visit. Physician-reported assessments, laboratory tests, and treatments were recorded by rheumatologists at every clinic visit.Results:1215 patients with AS were registered, of whom 992 were treated with acemetacin and 123 were treated with other NSAIDs. The results showed that total back pain and BASFI were significantly improved after three-month treatment of acemetacin, while comparing to other NSAIDs (P=0.027 and 0.015, respectively). After six-month treatment, patients taking acemetacin showed greater improvement in PGA (P=0.013), total back pain (P=0.049), night back pain (P=0.047), BASFI (P=0.042), ASDAS (P=0.007) and CRP (P=0.032) compared to those taking other NSAIDs. During the follow-up periods, no serious adverse events were reported. Mild abnormal liver function occurred in nine patients (9/992) treated with acemetacin and in six patients treated with other NSAIDs (6/123). See Table 1 for details.Conclusion:Acemetacin showed better efficacy and acceptable safety profile in the treatment of active ankylosing spondylitis comparing with other NSAIDs.References:[1]Ji, X., et al., Improvement of Disease Management and Cost Effectiveness in Chinese Patients with Ankylosing Spondylitis Using a Smart-Phone Management System: A Prospective Cohort Study. BioMed research international, 2019. 2019: p. 2171475.Table 1.The comparation of two groups at 0, 3 and 6 months after treatmentBaseline3 months6 months95%CIP95%CIP95%CIPPGA-0.13(-0.49, 0.24)0.494-0.28(-0.74, 0.18)0.235-0.59(-1.06, -1.13)0.013*Total back pain-0.03(-0.37, 0.32)0.889-0.50(-0.94, -0.06)0.027*-0.44(-0.88, -0.002)0.049*Night back pain0.01(-0.36, 0.38)0.956-0.30(-0.75, 0.16)0.203-0.46(-0.91, -0.006)0.047*BASFI-0.30(-0.59, 0.004)0.053-0.55(-0.99, -0.11)0.015*-0.34(-0.67, -0.01)0.042*ASDAS-0.10(-0.29, 0.08)0.287-0.15(-0.46, 0.16)0.342-0.41(-0.70, -0.11)0.007*CRP-4.39(-8.87, 0.10)0.0550.91(-10.39, 12.21)0.874-7.86(-15.03, -0.68)0.032*Disclosure of Interests:None declared
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Hu L, Gao D, MA Y, Wang Y, Ji X, Huang F. POS1481-HPR SEXUAL EXPERIENCE IN MALE PATIENTS WITH ANKYLOSING SPONDYLITIS: RESULTS FROM A CROSS-SECTIONAL STUDY OF 113 PATIENTS. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:The expression and experience of sexuality is a key part of an individual self-identity1, so it is essential for both healthy individuals and patients. Patients with ankylosing spondylitis (AS) may be susceptible to sexual issues due to disease activity, dysfunction and comorbid emotional problems. However, sexuality, especially sexual experience, are rarely paid attention in patients with AS.Objectives:Our study aims to assess sexual experience in male patients with AS, and analyze the factors affecting sexual experience.Methods:This is a cross-sectional study. A total of 113 patients with AS and 46 healthy people were investigated, matched according to age and body mass index. The Sexual Experience Questionnaire is used to assess male sexual experience. Linear regression analysis is used to explore the contributions of clinical variables to worse sexual experience.Results:There is a significant difference in the total sexual experience score between AS patients and healthy controls (41.92±8.83 vs 46.98±8.10, P=0.0013). Also, patients with AS have a worse score in all dimensions of sexual experience, including erectile function, individual satisfaction and couple satisfaction, comparing to healthy people. In the regression model after controlling for the effects of age, disease duration and body mass index, disease activity (BASDAI), function (BASFI), mobility (BASMI, chest expansion and finger-floor distance), health index (ASAS HI), sleep quality (PSQI) and psychological status (HADS, HADS-A and HADS-D) are significant determinants of sexual experience, including erectile function (except for chest expansion), individual satisfaction (except for BASMI) and couple satisfaction (except for BASMI). See Table 1 for details.Table 1.Multivariable regression analysis of association between sexual experience and clinical outcomesIndependentSexual experience total scoreErectile functionIndividual satisfactionCouple satisfactionβ (95%CI)Pβ (95%CI)Pβ (95%CI)Pβ (95%CI)PPain total-0.09 (-0.25, 0.07)0.28-0.27 (-0.58, 0.03)0.073-0.51 (-0.91, -0.100.014-0.15 (-0.32, 0.02)0.077BASDAI1.35 (-2.24, -0.45)0.003-0.42 (-0.75, -0.09)0.014-0.72 (-1.16, -0.28)0.001-0.21 (-0.40, -0.02)0.028BASFI-1.80 (-2.59, -1.01)<0.001-0.62 (-0.91, -0.32)<0.001-0.89 (-1.28, -0.50)<0.001-0.30 (-0.47, -0.13)0.001BASMI-1.04 (-2.01, -0.07)0.036-0.47 (-0.82, -0.12)0.008-0.48 (-0.96, 0.001)0.051-0.09 (-0.29, 0.12)0.413Chest expansion1.60 (0.24, 2.96)0.0210.50 (-0.004, 0.99)0.0520.74 (0.07, 1.42)0.0320.36 (0.08, 0.64)0.011Finger-floor distance-0.20 (-0.33, -0.07)0.003-0.07 (-0.11, -0.02)0.009-0.10 (-0.17, -0.03)0.003-0.04 (-0.06, -0.01)0.011ASAS HI-1.27 (-1.64, -0.91)<0.001-0.42 (-0.55, -0.28)<0.001-0.62 (-0.80, -0.43)<0.001-0.24 (-0.32, -0.16)<0.001PSQI-0.60 (-1.11, -0.09)0.021-0.19 (-0.38, -0.004)0.045-0.28 (-0.54, -0.03)0.03-0.13 (-0.23, -0.02)0.019HADS-0.53 (-0.76, -0.29)<0.001-0.18 (-0.27, -0.09)<0.001-0.24 (-0.36, -0.13)<0.001-0.10 (-0.15, -0.05)<0.001HADS-A-0.86 (-1.30, -0.42)<0.001-0.28 (-0.44, -0.12)0.001-0.42 (-0.63, -0.20)<0.001-0.17 (-0.26, -0.07)<0.001HADS-D-0.99 (-1.45, -0.53)<0.001-0.35 (-0.52, -0.19)<0.001-0.44 (-0.67, -0.21)<0.001-0.20 (-0.29, -0.10)<0.001Conclusion:Worse sexual experience is associated with increased disease activity, decreased function, poor mobility, decreased health index, poor sleep quality and psychological status. Therefore, special attention to worse sexual experience in patients with AS is essential to assess disease-related suffering and develop new patient management strategies.References:[1]Hill J, Bird H, Thorpe R. Effects of rheumatoid arthritis on sexual activity and relationships. Rheumatology (Oxford), 2003. 42(2):280-6.Disclosure of Interests:None declared
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Hu L, Zhang DW, Jiang HY, Ji S, Wei YY, Hu HQ, Fei GH. [Correlation between systemic inflammation level and emphysema degree and bone mineral density in chronic obstructive pulmonary disease patients and its mechanism]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:213-217. [PMID: 33721934 DOI: 10.3760/cma.j.cn112147-20200721-00824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the correlation between systemic inflammation level and emphysema degree and bone mineral density in chronic obstructive pulmonary disease (COPD) patients and its possible mechanism. Methods: 90 patients with stable COPD who met the inclusion criteria and 50 controls in the physical examination center during the same period were recruited. All the enrolled objects have collected general clinical data, analyzed peripheral blood samples, measuring the Low-attenuation area of lung and CT value of lumbar 1 vertebra (L1-CT) by chest spiral CT. According to LAA%, COPD patients were divided into 36 cases of the non-emphysema group, 32cases of mild to moderate emphysema group, and 22 cases of severe emphysema group. The correlation between L1-CT value, LAA%, peripheral blood inflammatory factors, and pulmonary function indices in each group was analyzed and compared. Results: The HU value of L1-CT (107±32) in the COPD group was significantly lower than that in the control group (153±30), and the difference was statistically significant (P<0.05). The higher the LAA% in COPD patients was, the lower the value of L1-CT was, and the difference between groups was statistically significant. Compared with COPD patients in the non-emphysema group, peripheral blood neutrophil/lymphocyte ratio (NLR), platelet/lymphocyte ratio (PLR), and C-reactive protein (CRP) were all increased in the emphysema group, and the differences were statistically significant (P<0.05). L1-CT was negatively correlated with LAA, PLR, NLR, and CRP while uncorrelated with serum concentration of calcium and phosphorus. Conclusion: The decrease in bone density in COPD patients is closely related to the degree of emphysema. It is associated with increased levels of systemic inflammation caused by COPD itself. Early and timely broad-spectrum anti-inflammatory treatment may have certain clinical significance for the prevention and treatment of comorbidity with osteoporosis.
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Affiliation(s)
- L Hu
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - D W Zhang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - H Y Jiang
- Department of Health Care Medicine, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - S Ji
- Key Laboratory of Respiratory Diseases Research and Medical Transformation of Anhui Province, Hefei 230022, China
| | - Y Y Wei
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - H Q Hu
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - G H Fei
- Key Laboratory of Respiratory Diseases Research and Medical Transformation of Anhui Province, Hefei 230022, China
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Jia M, Xu Y, Shao B, Guo Z, Hu L, Pataer P, Abass K, Ling B, Gong Z. Diagnostic magnetic resonance imaging in synovial chondromatosis of the temporomandibular joint. Br J Oral Maxillofac Surg 2021; 60:140-144. [PMID: 34848098 DOI: 10.1016/j.bjoms.2021.02.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 02/16/2021] [Indexed: 10/21/2022]
Abstract
The aim of this paper was to investigate the clinical and magnetic resonance imaging (MRI) features of synovial chondromatosis (SC) of the temporomandibular joint (TMJ). Fourteen patients with SC of the TMJ were included in the study. Clinical and MRI features were analysed and divided into three types based on MRI classification: type I with loose bodies, type II with homogeneous masses, and type III with a mixture of loose bodies and homogeneous masses. All SCs occurred in the superior compartment of the TMJ. There were two patients (14%) categorised as type I, five (36%) as type II and seven (50%) as type III. Four patients (29%) had disc perforation, and nine had bone erosion; among those nine, seven (78%) had type III and two (22%) type II. Histological examination showed inflammation and calcification in the synovial membrane and, and cartilage of the hyaline type in all cases. MRI has advantages in the diagnosis of SC.
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Affiliation(s)
- M Jia
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China
| | - Y Xu
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China
| | - B Shao
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China
| | - Z Guo
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China
| | - L Hu
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China
| | - P Pataer
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China
| | - K Abass
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China
| | - B Ling
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China
| | - Z Gong
- Oncological Department of Oral & Maxillofacial Surgery, the First Affiliated Hospital (the Affiliated Stomatological Hospital) of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Institute of Stomatology, No. 137 Li YuShan South Road, Urumqi, Xinjiang, China.
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Wang H, Hu L, Bai GQ, Liu Z, Yu GG, Wang W, Sun L. [Serum C-reactive protein, cholinesterase and prealbumin are correlated with prognosis of severe coronavirus disease 2019 patients]. Zhonghua Nei Ke Za Zhi 2021; 60:134-138. [PMID: 33503724 DOI: 10.3760/cma.j.cn112138-20200421-00404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To retrospectively analyze the relationship between serum C-reactive protein (CRP), serum cholinesterase (ChE), prealbumin (PA) and mortality in severe patients with coronavirus disease 2019 (COVID-19). Methods: During the period from January 29 to March 30, 2020, a total of 344 COVID-19 patients were admitted to west branch of Union Hospital, Tongji Medical College, Huazhong University of Science and Technology. One-hundred and ninety-two patients were diagnosed with common type and excluded, and 34 patients were transferred to LeiShenShan or other medical units. The remaining 118 patients were severe cases, and 18 cases were excluded due to incomplete data. A total of 100 severe COVID-19 patients were finally collected. According to the outcome, the patients were divided into death group (37 cases) and survival group(63 cases), and the levels of serum CRP, ChE and PA were compared. Statistical analysis were performed by SPSS25.0. Results: There were 53 male patients in this study. The level of CRP in death group was significantly more elevated compare to the survival group [(95.72±39.56) mg/L vs. (22.21±20.75) mg/L, P<0.01]. On the contrary, serum ChE in death group was remarkably decreased [(5 082±1 566) U/L vs. (7 075±1 680) U/L, P<0.01]. Also, serum PA in death group was significantly lower [(86.18±47.94) mg/L vs. (167.40±57.82) mg/L, P<0.01]. Univariate analysis showed that CRP and PA had an impact on the survival of critical patients, but multivariate Cox regression analysis suggested that CRP was the independent factor affecting the survival of critical patients. Conclusions: CRP is generally elevated in severe patients with COVID-19, and serum ChE and PA accordingly decrease. CRP and PA have influence on patients' survival, but only CRP demonstrates predictive value for prognosis in critical patients with COVID-19.
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Affiliation(s)
- H Wang
- Department of Infectious Disease, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - L Hu
- Department of Infectious Disease, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - G Q Bai
- Department of Critical Care Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - Z Liu
- Department of Critical Care Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - G G Yu
- Department of Respiratory Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - W Wang
- Department of Respiratory Medicine, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - L Sun
- Department of General Department, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430056, China
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Somervail R, Zhang F, Novembre G, Bufacchi RJ, Guo Y, Crepaldi M, Hu L, Iannetti GD. Waves of Change: Brain Sensitivity to Differential, not Absolute, Stimulus Intensity is Conserved Across Humans and Rats. Cereb Cortex 2021; 31:949-960. [PMID: 33026425 PMCID: PMC7786352 DOI: 10.1093/cercor/bhaa267] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 08/01/2020] [Accepted: 08/11/2020] [Indexed: 11/22/2022] Open
Abstract
Living in rapidly changing environments has shaped the mammalian brain toward high sensitivity to abrupt and intense sensory events-often signaling threats or affordances requiring swift reactions. Unsurprisingly, such events elicit a widespread electrocortical response (the vertex potential, VP), likely related to the preparation of appropriate behavioral reactions. Although the VP magnitude is largely determined by stimulus intensity, the relative contribution of the differential and absolute components of intensity remains unknown. Here, we dissociated the effects of these two components. We systematically varied the size of abrupt intensity increases embedded within continuous stimulation at different absolute intensities, while recording brain activity in humans (with scalp electroencephalography) and rats (with epidural electrocorticography). We obtained three main results. 1) VP magnitude largely depends on differential, and not absolute, stimulus intensity. This result held true, 2) for both auditory and somatosensory stimuli, indicating that sensitivity to differential intensity is supramodal, and 3) in both humans and rats, suggesting that sensitivity to abrupt intensity differentials is phylogenetically well-conserved. Altogether, the current results show that these large electrocortical responses are most sensitive to the detection of sensory changes that more likely signal the sudden appearance of novel objects or events in the environment.
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Affiliation(s)
- R Somervail
- Department of Neuroscience, Physiology and Pharmacology, University College London, London, WC1E 6BT, UK
- Neuroscience and Behaviour Laboratory, Istituto Italiano di Tecnologia, 00161 Rome, Italy
| | - F Zhang
- CAS Key Laboratory of Mental Health, Institute of Psychology, 100101 Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, 100049 Beijing, China
| | - G Novembre
- Neuroscience and Behaviour Laboratory, Istituto Italiano di Tecnologia, 00161 Rome, Italy
| | - R J Bufacchi
- Neuroscience and Behaviour Laboratory, Istituto Italiano di Tecnologia, 00161 Rome, Italy
| | - Y Guo
- Neuroscience and Behaviour Laboratory, Istituto Italiano di Tecnologia, 00161 Rome, Italy
| | - M Crepaldi
- Electronic Design Laboratory, Istituto Italiano di Tecnologia, 16152 Genova, Italy
| | - L Hu
- CAS Key Laboratory of Mental Health, Institute of Psychology, 100101 Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, 100049 Beijing, China
| | - G D Iannetti
- Department of Neuroscience, Physiology and Pharmacology, University College London, London, WC1E 6BT, UK
- Neuroscience and Behaviour Laboratory, Istituto Italiano di Tecnologia, 00161 Rome, Italy
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Yu Y, Hu L, Huang X, Zhou W, Bao H, Cheng X. BMI modifies the association between serum HDL cholesterol and stroke in a hypertensive population without atrial fibrillation. J Endocrinol Invest 2021; 44:173-181. [PMID: 32406023 DOI: 10.1007/s40618-020-01288-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 04/30/2020] [Indexed: 12/22/2022]
Abstract
PURPOSE Both high-density lipoprotein cholesterol (HDL-C) and body mass index (BMI) have an impact on the prevalence of stroke. However, it is unclear whether BMI can modify the relationship between HDL-C and stroke. Therefore, we aimed to assess the effect of the BMI on the association between HDL-C and stroke in a hypertensive population without atrial fibrillation (AF). METHODS We analyzed data of 10,925 hypertensive patients without AF from the Chinese Hypertension Registry Study. BMI was categorized as < 24 and ≥ 24 kg/m2. Multivariate logistic regression and smooth curve fitting (penalized spline method) were used to analyze the association between HDL-C and stroke in different BMI groups. Subgroup analysis and interaction tests were used to explore the effect of other variables on this relationship. RESULTS The results showed a negative association between HDL-C and stroke in the BMI < 24 kg/m2 group, but HDL-C was not associated with stroke in the BMI ≥ 24 kg/m2 group. In the BMI < 24 kg/m2 group, each 1 mmol/L increase in HDL-C was associated with a 50% decreased risk of stroke [odds ratio (OR) 0.50, 95% confidence interval (CI) 0.38-0.66]. No significant relationship between HDL-C and stroke was observed in the BMI ≥ 24 kg/m2 group (OR 0.73, 95% CI 0.49-1.10). There was a significant interaction between BMI and HDL-C in regard to the prevalence of stroke in the hypertensive population without AF (PInteraction = 0.027). CONCLUSIONS We found an inverse association between HDL-C and stroke only in the BMI < 24 kg/m2 group. The finding suggested that BMI could modify the association between HDL-C and stroke in hypertensive populations without AF.
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Affiliation(s)
- Y Yu
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, No. 1 Minde Road, Nanchang, Jiangxi, China
| | - L Hu
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, No. 1 Minde Road, Nanchang, Jiangxi, China
| | - X Huang
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, No. 1 Minde Road, Nanchang, Jiangxi, China
| | - W Zhou
- Center for Prevention and Treatment of Cardiovascular Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - H Bao
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, No. 1 Minde Road, Nanchang, Jiangxi, China.
- Center for Prevention and Treatment of Cardiovascular Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
| | - X Cheng
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, No. 1 Minde Road, Nanchang, Jiangxi, China.
- Center for Prevention and Treatment of Cardiovascular Diseases, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
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Ning XH, Liu J, Hu L, Lu HY, Liu Q, Wang DH. [Effects of NOX4 on radiosensitivity of nasopharyngeal carcinoma cells by activating the PI3K/AKT pathway]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:514-519. [PMID: 32842368 DOI: 10.3760/cma.j.cn115330-20190918-00584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the relationship between NOX4 and radiosensitivity of nasopharyngeal carcinoma cells. Methods: Western blot was used to test the expression of NOX4 in nasopharyngeal carcinoma cells (CNE1, CNE2 and HONE1) and normal nasopharyngeal epithelial cells (NP69). The lentiviral vectors for RNA interference and overexpression of NOX4 gene were constructed and nasopharyngeal carcinoma cells were transfected. After treatment with radiation or/and PI3K/AKT inhibitor LY294002, the expressions of related proteins in cells were tested by Western blot, and the cell proliferation was detected by CCK-8 assay and the cell apoptosis was determined by flow cytometry. GraphPad Prism 5 was used for statistical analysis, and P<0.05 was statistically significant. Results: The expressions of NOX4 in nasopharyngeal carcinoma cells were higher than those in normal nasopharyngeal epithelial cells. Compared with the siNC group, the siNOX4 group of nasopharyngeal carcinoma cell had lower proliferation capacity [72 h absorbance (A) value:1.16 vs. 0.75] and higher apoptosis rate (2.9% vs. 10.0%). In contrast,compared with the vector group, the NOX4 group of nasopharyngeal carcinoma cell had higher proliferation capacity [72 h absorbance (A) value: 1.01 vs. 1.32] and lower apoptotic rate (1.7% vs. 1.1%).Treatment with LY294002 for nasopharyngeal carcinoma cells of NOX4 overexpression,compared with the NOX4 group, the proliferation ability of nasopharyngeal carcinoma cells in the NOX4+LY294002 group was reduced (72 h absorbance (A) value: 1.32 vs. 0.77), while the apoptotic rate was increased (1.1% vs. 3.1%).Treatment with radiotherapy, compared with the siNC/Vector group, the proliferation ability of nasopharyngeal carcinoma cells in the siNOX4 group was reduced (72 h absorbance (A) value: 0.72 vs. 0.33), and the apoptotic rate was increased (7.8% vs. 17.3%). However, in the NOX4 group, the proliferation of nasopharyngeal carcinoma cells was enhanced (72 h absorbance (A) value:0.65 vs. 0.78), and the apoptotic rate was reduced (8.1% vs. 3.8%). Compared with the NOX4+radiation group, the proliferation ability of nasopharyngeal carcinoma cells in the NOX4+radiation+LY294002 group was reduced (72 h absorbance (A) value: 0.79 vs. 0.56), while the apoptotic rate was increased (3.8% vs. 8.1%). Conclusion: NOX4 can inhibit radiosensitivity of nasopharyngeal carcinoma cells possibly by activating PI3K/AKT pathway.
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Affiliation(s)
- X H Ning
- Department of Otolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai 200031, China
| | - J Liu
- Department of Otolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai 200031, China
| | - L Hu
- Department of Otolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai 200031, China
| | - H Y Lu
- Department of Otolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai 200031, China
| | - Q Liu
- Department of Otolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai 200031, China
| | - D H Wang
- Department of Otolaryngology, Eye Ear Nose and Throat Hospital, Fudan University, Shanghai 200031, China
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Brown OS, Hu L, Demetriou C, Smith TO, Hing CB. The effects of kinesiophobia on outcome following total knee replacement: a systematic review. Arch Orthop Trauma Surg 2020; 140:2057-2070. [PMID: 32839826 DOI: 10.1007/s00402-020-03582-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 08/16/2020] [Indexed: 02/09/2023]
Abstract
INTRODUCTION Kinesiophobia, the fear of physical movement and activity related to injury vulnerability, has been linked to sub-optimal outcomes following total knee replacement (TKR). This systematic review has two aims: to define the relationship between kinesiophobia and functional outcomes, pain and range of motion following TKR, and to evaluate published treatments for kinesiophobia following TKR. MATERIALS AND METHODS A primary search of electronic databases, grey literature, and trial registries was performed in March 2020. English-language studies recruiting adult primary TKR patients, using the Tampa Scale of Kinesiophobia (TSK) were included. Outcome measures were grouped into short (< 6 months), medium (6-12 months), and long term (> 12 months). Study quality was assessed using the Newcastle Ottawa Scale for cohort or case control studies, and the Cochrane Collaboration Risk of Bias tool for randomised controlled trials. RESULTS All thirteen included papers (82 identified) showed adequately low risk of methodological bias. TSK1 (activity avoidance) correlated with WOMAC functional score at 12 months in three studies (r = 0.20 p < 0.05, R = 0.317 p = 0.001, and correlation coefficient 0.197 p = 0.005). TSK score significantly correlated with mean active range of motion (ROM) at 2 weeks [65.98 (SD = 14.51) versus 47.35 (SD = 14.48) p = 0.000], 4 weeks [88.20 (SD = 15.11) versus 57.65 (SD = 14.80) p = 0.000], and 6 months [105.33 (SD = 12.34) versus 85.53 (SD = 14.77) p = 0.000] post-operation. Three post-operative interventions improved TSK score vs control following TKR: a home-based functional exercise programme [TSK - 14.30 (SD = 0.80) versus - 2.10 (SD = 0.80) p < 0.001], an outpatient cognitive behavioural therapy (CBT) programme [TSK 27.76 (SD = 4.56) versus 36.54 (SD = 3.58)], and video-based psychological treatment [TSK 24 (SD = 5) versus 29 (SD = 5) p < 0.01]. CONCLUSIONS Kinesiophobia negatively affects functional outcomes up until 1 year post-operatively, while active ROM is reduced up to 6 months post-procedure. Post-operative functional and psychological interventions can improve kinesiophobia following TKR.
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Affiliation(s)
- Oliver S Brown
- Trauma and Orthopaedic Department, St George's University Hospitals NHS Foundation Trust, Blackshaw Road, London, SW17 0QT, UK.
| | - L Hu
- Epsom and St Helier University Hospitals, London, UK
| | - C Demetriou
- Epsom and St Helier University Hospitals, London, UK
| | - T O Smith
- Faculty of Medicine and Health Sciences, University of East Anglia, Norwich, UK
| | - C B Hing
- Trauma and Orthopaedic Department, St George's University Hospitals NHS Foundation Trust, Blackshaw Road, London, SW17 0QT, UK
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Dai H, Coleman DN, Lopes MG, Hu L, Martinez-Cortés I, Parys C, Shen X, Loor JJ. Alterations in immune and antioxidant gene networks by gamma-d-glutamyl-meso-diaminopimelic acid in bovine mammary epithelial cells are attenuated by in vitro supply of methionine and arginine. J Dairy Sci 2020; 104:776-785. [PMID: 33189269 DOI: 10.3168/jds.2020-19307] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 09/08/2020] [Indexed: 12/25/2022]
Abstract
Nucleotide-binding oligomerization domain (NOD)-like receptor 1 (NOD1) is a cytosolic pattern recognition receptor with a crucial role in the innate immune response of cells triggered by the presence of compounds such as gamma-d-glutamyl-meso-diaminopimelic acid (iE-DAP) present in the peptidoglycan of all gram-negative and certain gram-positive bacteria. Methionine (Met) and arginine (Arg) are functional AA with immunomodulatory properties. In the present study, we aimed to assess the effect of increased Met and Arg supply on mRNA abundance of genes associated with innate immune response, antioxidant function, and AA metabolism during iE-DAP challenge in bovine mammary epithelial cells (BMEC). Primary BMEC (n = 4 per treatment) were precultured in modified medium for 12 h with the following AA formulations: ideal profile of AA (control), increased Met supply (incMet), increased Arg supply (incArg), or increased supply of Met plus Arg (incMetArg). Subsequently, cells were challenged with or without iE-DAP (10 μg/mL) for 6 h. Data were analyzed as a 2 × 2 × 2 factorial using the MIXED procedure of SAS 9.4. Greater mRNA abundance of NOD1, the antioxidant enzyme SOD1, and AA transporters (SLC7A1 and SLC3A2) was observed in the incMet cells after iE-DAP stimulation. Although increased Met alone had no effect, incMetArg led to greater abundance of the inflammatory cytokine IL-6, and the antioxidant enzyme GPX1 after iE-DAP stimulation. The increased Arg alone downregulated NOD1 after iE-DAP stimulation, coupled with a downregulation in the AA transporters mRNA abundance (SLC7A1, SLC7A5, SLC3A2, and SLC38A9), and upregulation in GSS and KEAP1 mRNA abundance. Overall, the data indicated that increased supply of both Met and Arg in the culture medium were more effective in modulating the innate immune response and antioxidant capacity of BMEC during in vitro iE-DAP stimulation.
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Affiliation(s)
- H Dai
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, P. R. China; Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801
| | - D N Coleman
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801
| | - M G Lopes
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801
| | - L Hu
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801; College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, P. R. China
| | - I Martinez-Cortés
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801; Agricultural and Animal Production Department, UAM-Xochimilco, Mexico City, Mexico 04960
| | - C Parys
- Evonik Nutrition & Care GmbH, Hanau-Wolfgang, 63457, Germany
| | - X Shen
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - J J Loor
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801.
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Liao C, Hu L, Lan C. Hashimoto's thyroiditis associated with an extra-thyroidal triad of pretibial myxedema, ophthalmopathy, and acropachy. J BIOL REG HOMEOS AG 2020; 34:1085-1090. [PMID: 32683842 DOI: 10.23812/19-494-l-16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- C Liao
- Department of Dermatology, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan, China
| | - L Hu
- DDepartment of Dermatology, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan, China
| | - C Lan
- DDepartment of Dermatology, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan, China
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71
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Ma Y, Pan X, Cai W, Mu X, Xu Y, Hu L, Wang W, Wang H, Song YP, Yang ZB, Zheng SB, Sun L. Manipulating Complex Hybrid Entanglement and Testing Multipartite Bell Inequalities in a Superconducting Circuit. Phys Rev Lett 2020; 125:180503. [PMID: 33196232 DOI: 10.1103/physrevlett.125.180503] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 09/23/2020] [Indexed: 06/11/2023]
Abstract
Quantum correlations in observables of multiple systems not only are of fundamental interest, but also play a key role in quantum information processing. As a signature of these correlations, the violation of Bell inequalities has not been demonstrated with multipartite hybrid entanglement involving both continuous and discrete variables. Here we create a five-partite entangled state with three superconducting transmon qubits and two photonic qubits, each encoded in the mesoscopic field of a microwave cavity. We reveal the quantum correlations among these distinct elements by joint Wigner tomography of the two cavity fields conditional on the detection of the qubits and by test of a five-partite Bell inequality. The measured Bell signal is 8.381±0.038, surpassing the bound of 8 for a four-partite entanglement imposed by quantum correlations by 10 standard deviations, demonstrating the genuine five-partite entanglement in a hybrid quantum system.
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Affiliation(s)
- Y Ma
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - X Pan
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - W Cai
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - X Mu
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Y Xu
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - L Hu
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - W Wang
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - H Wang
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Y P Song
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Zhen-Biao Yang
- Fujian Key Laboratory of Quantum Information and Quantum Optics, College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Shi-Biao Zheng
- Fujian Key Laboratory of Quantum Information and Quantum Optics, College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
| | - L Sun
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
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Sun Y, Hu L, Liu C, Su G, Yang L, Huang W, Chen W. TAZ Regulates Bladder Cancer Cell Proliferation and Apoptosis via p38 Activity.. [DOI: 10.21203/rs.3.rs-95663/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Abstract
Background The progression of cancer is driven by the deregulation of various signaling pathways, especially Hippo and p38 MAPK pathway. TAZ, a downstream target of Hippo pathway, has been demonstrated to promote tumorigenesis in various cancers, but the functions of both Hippo and p38 signaling in bladder cancer cells are still unclear. Methods T24 and 5637 cells with knockdown of TAZ were constructed. EdU cell proliferation assay and western blot were used to illustrate the effects of TAZ on the proliferation and apoptosis of bladder cancer cells and the expression of p38 protein and phosphorylation. We overexpressed Flag-tagged TAZ in 293T cells. Western blot and RT-qPCR were used to further illustrate the effect of TAZ on the expression level of p38. The p38 inhibitor (PH-797804) combined with western blot and EDU cell proliferation assay were used to show whether TAZ affects the proliferation and apoptosis of bladder cancer cells by regulating the activity of p38.Results The shTAZ contained in T24 and 5637 cells significantly inhibited bladder cancer cells proliferation, in addition, the knockdown of TAZ-induced apoptosis of T24 and 5637 cells was found out. The loss of TAZ led to the upregulation of p38 protein as well as phosphorylation. The over-expression of Flag-TAZ had no obvious effect on p38 mRNA level, but p38 protein was reduced clearly in 293T cells. ShTAZ induced the upregulation of cleaved-caspase 3, which disappeared when treated with PH-797804, a p38 inhibitor, and the reduction to EdU positive cells induced by shTAZ was reversed by PH-797804 treatment, which suggested that p38 activity could mediate both cell proliferation and apoptosis regulated by TAZ knockdown. Conclusions In this study, it was demonstrated that TAZ could regulate the proliferation and apoptosis of bladder cancer cells by regulating the stability of p38 protein. Our finding uncovered the novel functional interaction between Hippo and p38 MAPK pathway. An in-depth understanding of this question may indicate a new direction of diagnosis or treatment for bladder cancer.
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Affiliation(s)
- Yangyang Sun
- The First Affiliated Hospital of Shenzhen University
| | - Lianxin Hu
- The First Affiliated Hospital of Shenzhen University
| | | | | | | | - Weiren Huang
- The First Affiliated Hospital of Shenzhen University
| | - Wei Chen
- The First Affiliated Hospital of Shenzhen University
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Abstract
OBJECTIVE To observe whether edaravone has a therapeutic and protective effect on retinal injury in diabetic rats through the nuclear factor-κB (NF-κB) pathway. MATERIALS AND METHODS The Sprague-Dawley rat model of diabetes was established and divided into diabetes model group (model group) and edaravone treatment group (treatment group). Also, normal control group (control group) was set up. After successful modeling, the blood and retinal tissues of rats were collected. Then, the blood glucose content and serum interleukin-6 (IL-6) were detected. Antioxidant indexes, superoxide dismutase (SOD), and malondialdehyde (MDA), were detected via enzyme-linked immunosorbent assay (ELISA), while the number of corneal nerve fibers was observed microscopically. Moreover, the gene and protein expressions of SOD and NF-κB pathway in tissues were detected via quantitative Reverse Transcription-Polymerase Chain Reaction (qRT-PCR) and Western blotting. RESULTS The level of blood glucose in model group was increased compared with that in control group (p<0.05), indicating the successful modeling. The levels of tumor necrosis factor-α (TNF-α), IL-6, and IL-1 were significantly higher in model group than those in control group. In terms of the antioxidant indexes, the level of MDA in model group was significantly higher than that in other two groups, while the level of SOD in treatment group was significantly increased and close to that in control group. Besides, the number of corneal nerve fibers significantly declined in model group, while it was increased in treatment group but still lower than that in control group. According to the gene detection results, the mRNA expression of NF-κB p65 was markedly higher in model group than that in control group, and it was decreased in treatment group, while the mRNA expression of SOD showed the opposite trend. The protein expression of NF-κB p65 was remarkably higher in model group than in control group, was decreased in treatment group, and was close to that in control group, while the protein expression of SOD showed the opposite trend. CONCLUSIONS Edaravone can affect the oxidation and antioxidation through the NF-κB signaling pathway, thereby exerting a therapeutic and protective effect on retinal injury in diabetic rats.
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Affiliation(s)
- Y-J Wan
- Department of Endocrinology, Gongan County People's Hospital, Jingzhou, China.
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Xing Q, Yang Y, Liu YY, Hu L, Zhang R, Du JL. [Insulin autoimmune syndrome induced by alpha-lipoic acid in two diabetic patients and HLA-DRB1 alleles analysis in first-degree family members]. Zhonghua Nei Ke Za Zhi 2020; 59:641-644. [PMID: 34865384 DOI: 10.3760/cma.j.cn112138-20190813-00561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- Q Xing
- Department of Endocrinology, the First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - Y Yang
- Department of Endocrinology, the First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - Y Y Liu
- Department of Endocrinology, the First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - L Hu
- Department of Endocrinology, the First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - R Zhang
- Department of Endocrinology, the First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - J L Du
- Department of Endocrinology, the First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
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Liao C, Zhang Y, Fan C, Herring LE, Liu J, Locasale JW, Takada M, Zhou J, Zurlo G, Hu L, Simon JM, Ptacek TS, Andrianov VG, Loza E, Peng Y, Yang H, Perou CM, Zhang Q. Identification of BBOX1 as a Therapeutic Target in Triple-Negative Breast Cancer. Cancer Discov 2020; 10:1706-1721. [PMID: 32690540 PMCID: PMC7642036 DOI: 10.1158/2159-8290.cd-20-0288] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 06/15/2020] [Accepted: 07/15/2020] [Indexed: 11/16/2022]
Abstract
Triple-negative breast cancer (TNBC) is an aggressive and highly lethal disease. Because of its heterogeneity and lack of hormone receptors or HER2 expression, targeted therapy is limited. Here, by performing a functional siRNA screening for 2-OG-dependent enzymes, we identified gamma-butyrobetaine hydroxylase 1 (BBOX1) as an essential gene for TNBC tumorigenesis. BBOX1 depletion inhibits TNBC cell growth while not affecting normal breast cells. Mechanistically, BBOX1 binds with the calcium channel inositol-1,4,5-trisphosphate receptor type 3 (IP3R3) in an enzymatic-dependent manner and prevents its ubiquitination and proteasomal degradation. BBOX1 depletion suppresses IP3R3-mediated endoplasmic reticulum calcium release, therefore impairing calcium-dependent energy-generating processes including mitochondrial respiration and mTORC1-mediated glycolysis, which leads to apoptosis and impaired cell-cycle progression in TNBC cells. Therapeutically, genetic depletion or pharmacologic inhibition of BBOX1 inhibits TNBC tumor growth in vitro and in vivo. Our study highlights the importance of targeting the previously uncharacterized BBOX1-IP3R3-calcium oncogenic signaling axis in TNBC. SIGNIFICANCE: We provide evidence from unbiased screens that BBOX1 is a potential therapeutic target in TNBC and that genetic knockdown or pharmacologic inhibition of BBOX1 leads to decreased TNBC cell fitness. This study lays the foundation for developing effective BBOX1 inhibitors for treatment of this lethal disease.This article is highlighted in the In This Issue feature, p. 1611.
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Affiliation(s)
- Chengheng Liao
- Department of Pathology, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Yang Zhang
- Department of Biochemistry, Duke University, Durham, North Carolina
| | - Cheng Fan
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Laura E Herring
- Department of Pharmacology and UNC Proteomics Core Facility, University of North Carolina, Chapel Hill, North Carolina
| | - Juan Liu
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, North Carolina
| | - Jason W Locasale
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine, Durham, North Carolina
| | - Mamoru Takada
- Department of General Surgery, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Jin Zhou
- Department of Pathology, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Giada Zurlo
- Department of Pathology, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Lianxin Hu
- Department of Pathology, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Jeremy M Simon
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, North Carolina.,Department of Genetics, Neuroscience Center, University of North Carolina, Chapel Hill, North Carolina.,UNC Neuroscience Center, Carolina Institute for Developmental Disabilities, University of North Carolina, Chapel Hill, North Carolina
| | - Travis S Ptacek
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, North Carolina.,UNC Neuroscience Center, Carolina Institute for Developmental Disabilities, University of North Carolina, Chapel Hill, North Carolina
| | | | - Einars Loza
- Latvian Institute of Organic Synthesis, Riga, Latvia
| | - Yan Peng
- Department of Pathology, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Huanghe Yang
- Department of Biochemistry, Duke University, Durham, North Carolina
| | - Charles M Perou
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Qing Zhang
- Department of Pathology, The University of Texas Southwestern Medical Center, Dallas, Texas.
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Hu L, Sato Y, Takagi K, Ishii T, Honma Y, Muto J. LB926 Hyaluronic acids (HAs) molecular size-dependent biological functions on UVB-induced DAMPs-mediated keratinocyte inflammation. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Hu L, Ji X, Huang F. THU0389 OBESITY IS A STRONG PREDICTOR OF WORSE CLINICAL OUTCOMES AND TREATMENT RESPONSES TO BIOLOGICS IN PATIENTS WITH ANKYLOSING SPONDYLITIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.4445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Obesity population are rising rapidly and have become a major health issue. Studies have shown that obesity is a low-grade inflammatory status characterized by increase in proinflammatory cytokines.Objectives:To examine the impact of overweight or obesity on disease activity and treatment responses to biologics in patients with ankylosing spondylitis (AS) in a real-world setting.Methods:Body mass index (BMI) is available in 1013 patients from the Chinese Ankylosing Spondylitis Imaging Cohort (CASPIC). Differences in clinical outcomes (such as BASDAI, ASDAS, BASFI, and ASAS HI) and treatment responses to biologics (ΔBASDAI and ΔASDAS) over 3, 6, 9, and 12 months are assessed between BMI categories (normal weight BMI <24 kg/m2; overweight BMI=24-28 kg/m2; obesity BMI ≥28 kg/m2) using Kruskal-Wallis test. The association between BMI and clinical characteristics and treatment responses to biologics was determined, and multivariate median regression analyses were conducted to adjust for confounders (such as age, gender, smoke, and HLA-B27).Results:Among 1013 patients with AS, overweight accounts for 33%, while obesity for 12.4%. There were significant differences between patients who were obese or overweight and those with a normal weight regarding clinical outcomes (BASDAI: 2.90/2.56 vs 2.21; ASDAS-CRP: 2.20/1.99 vs 1.81; BASFI: 2.13/1.69 vs 1.38; ASAS HI: 6.87/5.29 vs 5.12 and BASMI: 2.35/1.76 vs 1.62; all P<0.05). After adjusting for age, gender, smoke, and HLA-B27, obesity remained associated with higher disease activity (BASDAI: β=0.55, P=0.005; ASDAS-CRP: β=0.40, P<0.001), poorer functional capacity (BASFI: β=0.58, P=0.001), worse health index (ASAS HI: β=1.92, P<0.001) and metrology index (BASMI: β=0.71, P=0.013). For TNFi users, BMI was found to be negatively correlated with changes in disease activity (ΔBASDAI and ΔASDAS) in the multivariate regression model (all P<0.05), and overweight and obese patients showed an unsatisfactory reduction in disease activity during 3-month, 6-month, 9-month, and 12-month follow-up period, compared to normal weight patients (all P<0.05).Conclusion:Overweight or obesity impacts greatly on clinical outcomes and treatment responses to biologics in patients with ankylosing spondylitis, which argues strongly for obesity management to become central to prevention and treatment strategies in patients with AS.References:[1]Maachi M, Pieroni L, Bruckert E, et al. Systemic low-grade inflammation is related to both circulating and adipose tissue TNFalpha, leptin and IL-6 levels in obese women. Int J Obes Relat Metab Disord 2004;28:993–7.Figure 1.Changes of disease activity for TNFi users during 3-, 6-, 9- and 12-month follow-up according to BMI categories. a: vs. normal weight, P<0.05 in 3 months; b: vs. normal weight, P<0.05 in 6 months; c: vs. normal weight, P<0.05 in 9 months; d: vs. normal weight, P<0.05 in 12 months.Acknowledgments:We appreciate the contribution of the present or former members of the CASPIC study group.Disclosure of Interests:None declared
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Hu L, Tian K, Zhang T, Fan CH, Zhou P, Yuan DZ, Chen Y, Li J, Ran JH. [Cyanate-induced oxidative stress injury in human normal liver HL-7702 cells]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:446-449. [PMID: 32536063 DOI: 10.3760/cma.j.cn501113-20190801-00283] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- L Hu
- Neuroscience Research Platform of Basic Medical College of Chongqing Medical University, Chongqing 400016, China
| | - K Tian
- Neuroscience Research Platform of Basic Medical College of Chongqing Medical University, Chongqing 400016, China
| | - T Zhang
- Neuroscience Research Platform of Basic Medical College of Chongqing Medical University, Chongqing 400016, China
| | - C H Fan
- Neuroscience Research Platform of Basic Medical College of Chongqing Medical University, Chongqing 400016, China
| | - P Zhou
- Laboratory of Histology and Cell Engineering and Stem Cells, Basic Medical College of Chongqing Medical University, Chongqing 400016, China
| | - D Z Yuan
- Department of Neurology, Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Y Chen
- Laboratory of Histology and Cell Engineering and Stem Cells, Basic Medical College of Chongqing Medical University, Chongqing 400016, China
| | - J Li
- Laboratory of Histology and Cell Engineering and Stem Cells, Basic Medical College of Chongqing Medical University, Chongqing 400016, China
| | - J H Ran
- Neuroscience Research Platform of Basic Medical College of Chongqing Medical University, Chongqing 400016, China; Laboratory of Histology and Cell Engineering and Stem Cells, Basic Medical College of Chongqing Medical University, Chongqing 400016, China
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Hu L, Wang C. Radiological role in the detection, diagnosis and monitoring for the coronavirus disease 2019 (COVID-19). Eur Rev Med Pharmacol Sci 2020; 24:4523-4528. [PMID: 32373990 DOI: 10.26355/eurrev_202004_21035] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
OBJECTIVE Coronavirus disease 2019 (COVID-19) has officially been declared a pandemic by the World Health Organization (WHO). Radiological examinations, especially computed tomography (CT), play an important role in the fight against COVID-19. A comprehensive and timely review of radiological role in the fight against COVID-19 remains urgent and mandatory. Hence, the aim of this review is to summarize the radiological role in the fight against COVID-19. This review of current studies on COVID-19 provides insight into the radiological role in the detection, diagnosis, and monitoring for COVID-19. The typical radiological features of COVID-19 include bilateral, multifocal, and multilobar ground glass opacification with patchy consolidation, a peripheral/subpleural or posterior distribution (or both), mainly in the lower lobes. A combination of chest CT and repeat Reverse Transcription-Polymerase Chain Reaction (RT-PCR) testing may be beneficial for the diagnosis of COVID-19 in the setting of strongly clinical suspicion. Chest CT may improve the sensitivity for COVID-19 diagnosis, but patients' exposure to radiation should be kept as low as possible especially for children and pregnant women patients.
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Affiliation(s)
- L Hu
- Department of Ultrasound, Hangzhou Women's Hospital, Hangzhou, Zhejiang, China.
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Xu Y, Ma Y, Cai W, Mu X, Dai W, Wang W, Hu L, Li X, Han J, Wang H, Song YP, Yang ZB, Zheng SB, Sun L. Demonstration of Controlled-Phase Gates between Two Error-Correctable Photonic Qubits. Phys Rev Lett 2020; 124:120501. [PMID: 32281851 DOI: 10.1103/physrevlett.124.120501] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 10/09/2019] [Accepted: 02/28/2020] [Indexed: 06/11/2023]
Abstract
To realize fault-tolerant quantum computing, it is necessary to store quantum information in logical qubits with error correction functions, realized by distributing a logical state among multiple physical qubits or by encoding it in the Hilbert space of a high-dimensional system. Quantum gate operations between these error-correctable logical qubits, which are essential for implementation of any practical quantum computational task, have not been experimentally demonstrated yet. Here we demonstrate a geometric method for realizing controlled-phase gates between two logical qubits encoded in photonic fields stored in cavities. The gates are realized by dispersively coupling an ancillary superconducting qubit to these cavities and driving it to make a cyclic evolution depending on the joint photonic state of the cavities, which produces a conditional geometric phase. We first realize phase gates for photonic qubits with the logical basis states encoded in two quasiorthogonal coherent states, which have important implications for continuous-variable-based quantum computation. Then we use this geometric method to implement a controlled-phase gate between two binomially encoded logical qubits, which have an error-correctable function.
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Affiliation(s)
- Y Xu
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Y Ma
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - W Cai
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - X Mu
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - W Dai
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - W Wang
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - L Hu
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - X Li
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - J Han
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - H Wang
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Y P Song
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Zhen-Biao Yang
- Fujian Key Laboratory of Quantum Information and Quantum Optics, College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Shi-Biao Zheng
- Fujian Key Laboratory of Quantum Information and Quantum Optics, College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
| | - L Sun
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
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Abstract
Maize is currently the most important crop in China. A major concern in maize production is maize ear rot caused by Fusarium spp., which results in yield losses, reduction of seed quality and the accumulation of mycotoxins in the harvested grains. To identify the importance of the different Fusarium species in maize infection, we performed a comprehensive survey on 9,000 asymptomatic and randomly collected maize kernels. Seeds were collected from 12 different provinces covering all major maize growing areas in China and included five maize varieties. In total 1,022 Fusarium isolates were retrieved that were identified based on morphological characteristics, by species specific diagnostic PCRs and by EF1-α gene sequencing. Eight different species were identified: Fusarium verticillioides (75.34%), Fusarium graminearum (8.32%), Fusarium proliferatum (7.14%), Fusarium subglutinans (4.11%), Fusarium meridionale (1.57%), Fusarium oxysporum (1.37%), Fusarium semitectum (1.17%), and Fusarium asiaticum (0.98%). The distribution of Fusarium species was found to be different in different regions with the largest diversity observed in Hubei province, where all eight Fusarium species were isolated. Genetic chemotyping within the F. graminearum species complex indicated that all of the 85 F. graminearum isolates showed the 15-acetyldeoxynivalenol chemotype, whereas all F. asiaticum (n=10) and F. meridionale (n=16) isolates had the nivalenol chemotype even when isolated from the same maize field. To our knowledge this is the largest collection of Fusarium isolates from maize and further exploitations of this collection are discussed.
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Affiliation(s)
- P.W. Qin
- College of Plant Protection, Shenyang Agricultural University, Shenhe Street, Dongling Road No.120, Shenyang, 110161, China P.R
| | - J. Xu
- Plant Protection Institute, Liaoning Academy of Agricultural Sciences, Shenyang, 110161, China P.R
| | - Y. Jiang
- Plant Protection Institute, Liaoning Academy of Agricultural Sciences, Shenyang, 110161, China P.R
| | - L. Hu
- Plant Protection Institute, Liaoning Academy of Agricultural Sciences, Shenyang, 110161, China P.R
| | - T. van der Lee
- Plant Research International, Business Unit Biointeractions, P.O. Box 16, 6700 AA Wageningen, the Netherlands
| | - C. Waalwijk
- Plant Research International, Business Unit Biointeractions, P.O. Box 16, 6700 AA Wageningen, the Netherlands
| | - W.M. Zhang
- Plant Protection Station of Liaoning Province, Shenyang 110034, China P.R
| | - X.D. Xu
- Plant Protection Institute, Liaoning Academy of Agricultural Sciences, Shenyang, 110161, China P.R
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82
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Liu K, Ji S, Xu Y, Diao Q, Shao C, Luo J, Zhu Y, Jiang Z, Diao Y, Cong Z, Hu L, Qiang Y, Shen Y. Safety, feasibility, and effect of an enhanced nutritional support pathway including extended preoperative and home enteral nutrition in patients undergoing enhanced recovery after esophagectomy: a pilot randomized clinical trial. Dis Esophagus 2020; 33:5479246. [PMID: 31329828 DOI: 10.1093/dote/doz030] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 03/08/2019] [Accepted: 03/13/2019] [Indexed: 12/11/2022]
Abstract
The aims of this pilot study are to evaluate the feasibility, safety, and effectiveness of conducting an enhanced nutritional support pathway including extended preoperative nutritional support and one month home enteral nutrition (HEN) for patients who underwent enhanced recovery after esophagectomy. We implemented extended preoperative nutritional support and one month HEN after discharge for patients randomized into an enhanced nutrition group and implemented standard nutritional support for patients randomized into a conventional nutrition group. Except the nutritional support program, both group patients underwent the same standardized enhanced recovery after surgery programs of esophagectomy based on published guidelines. Patients were assessed at preoperative day, postoperative day 7 (POD7), and POD30 for perioperative outcomes and nutritional status. To facilitate the determination of an effect size for subsequent appropriately powered randomized clinical trials and assess the effectiveness, the primary outcome we chose was the weight change before and after esophagectomy. Other outcomes including body mass index (BMI), lean body mass (LBM), appendicular skeletal muscle mass index (ASMI), nutrition-related complications, and quality of life (QoL) were also analyzed. The intention-to-treat analysis of the 50 randomized patients showed that there was no significant difference in baseline characteristics. The weight (-2.03 ± 2.28 kg vs. -4.05 ± 3.13 kg, P = 0.012), BMI (-0.73 ± 0.79 kg/m2 vs. -1.48 ± 1.11 kg/m2, P = 0.008), and ASMI (-1.10 ± 0.37 kg/m2 vs. -1.60 ± 0.66 kg/m2, P = 0.010) loss of patients in the enhanced nutrition group were obviously decreased compared to the conventional nutrition group at POD30. In particular, LBM (48.90 ± 9.69 kg vs. 41.96 ± 9.37 kg, p = 0.031) and ASMI (7.56 ± 1.07 kg/m2 vs. 6.50 ± 0.97 kg/m2, P = 0.003) in the enhanced nutrition group were significantly higher compared to the conventional nutrition group at POD30, despite no significant change between pre- and postoperation. In addition, European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 scores revealed that enhanced nutritional support improved the QoL of patients in physical function (75.13 ± 9.72 vs. 68.33 ± 7.68, P = 0.009) and fatigue symptom (42.27 ± 9.93 vs. 49.07 ± 11.33, P = 0.028) compared to conventional nutritional support. This pilot study demonstrated that an enhanced nutritional support pathway including extended preoperative nutritional support and HEN was feasible, safe, and might be beneficial to patients who underwent enhanced recovery after esophagectomy. An appropriately powered trial is warranted to confirm the efficacy of this approach.
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Affiliation(s)
- K Liu
- Department of Cardiothoracic Surgery, Jinling Hospital, Medical School of Nanjing University
| | - S Ji
- Department of Cardiothoracic Surgery, Jinling Hospital, Bengbu Medical College, Anhui, China
| | - Y Xu
- Department of Cardiothoracic Surgery, Jinling Hospital
| | - Q Diao
- Department of Medical Imaging, Medical Imaging Center, Jinling Hospital
| | - C Shao
- Department of Cardiothoracic Surgery, Jingling Hospital, Jingling School of Clinical Medicine, Nanjing Medical University
| | - J Luo
- Department of Cardiothoracic Surgery, Jinling Hospital, Medical School of Nanjing University.,Department of Cardiothoracic Surgery, Jinling Hospital
| | - Y Zhu
- Jiangsu Key laboratory for Molecular Medicine, Medical school of Nanjing University
| | - Z Jiang
- Department of Cardiothoracic Surgery, Jinling Hospital, Bengbu Medical College, Anhui, China
| | - Y Diao
- Medical School, Southeast University, Nanjing
| | - Z Cong
- Department of Cardiothoracic Surgery, Jinling Hospital, Medical School of Nanjing University.,Department of Cardiothoracic Surgery, Jinling Hospital
| | - L Hu
- Department of Cardiothoracic Surgery, Jinling Hospital
| | - Y Qiang
- Department of Cardiothoracic Surgery, Jinling Hospital, Medical School of Nanjing University.,Department of Cardiothoracic Surgery, Jinling Hospital.,Medical School, Southeast University, Nanjing
| | - Y Shen
- Department of Cardiothoracic Surgery, Jinling Hospital, Medical School of Nanjing University.,Department of Cardiothoracic Surgery, Jinling Hospital
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83
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Wang L, Hu L, Zhao J, Wei B. Ultrafast growth kinetics of titanium dendrites investigated by electrostatic levitation experiments and molecular dynamics simulations. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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84
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Hu L, Xie H, Liu X, Potjewyd F, James LI, Wilkerson EM, Herring LE, Xie L, Chen X, Cabrera JC, Hong K, Liao C, Tan X, Baldwin AS, Gong K, Zhang Q. TBK1 Is a Synthetic Lethal Target in Cancer with VHL Loss. Cancer Discov 2020; 10:460-475. [PMID: 31810986 PMCID: PMC7058506 DOI: 10.1158/2159-8290.cd-19-0837] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 10/25/2019] [Accepted: 12/03/2019] [Indexed: 11/16/2022]
Abstract
TANK binding kinase 1 (TBK1) is an important kinase involved in the innate immune response. Here we discover that TBK1 is hyperactivated by von Hippel-Lindau (VHL) loss or hypoxia in cancer cells. Tumors from patients with kidney cancer with VHL loss display elevated TBK1 phosphorylation. Loss of TBK1 via genetic ablation, pharmacologic inhibition, or a new cereblon-based proteolysis targeting chimera specifically inhibits VHL-deficient kidney cancer cell growth, while leaving VHL wild-type cells intact. TBK1 depletion also significantly blunts kidney tumorigenesis in an orthotopic xenograft model in vivo. Mechanistically, TBK1 hydroxylation on Proline 48 triggers VHL as well as the phosphatase PPM1B binding that leads to decreased TBK1 phosphorylation. We identify that TBK1 phosphorylates p62/SQSTM1 on Ser366, which is essential for p62 stability and kidney cancer cell proliferation. Our results establish that TBK1, distinct from its role in innate immune signaling, is a synthetic lethal target in cancer with VHL loss. SIGNIFICANCE: The mechanisms that lead to TBK1 activation in cancer and whether this activation is connected to its role in innate immunity remain unclear. Here, we discover that TBK1, distinct from its role in innate immunity, is activated by VHL loss or hypoxia in cancer.See related commentary by Bakouny and Barbie, p. 348.This article is highlighted in the In This Issue feature, p. 327.
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Affiliation(s)
- Lianxin Hu
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, North Carolina
- Department of Pathology, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Haibiao Xie
- Department of Urology, Peking University First Hospital, Beijing, China
| | - Xijuan Liu
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Frances Potjewyd
- Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina
| | - Lindsey I James
- Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina
| | - Emily M Wilkerson
- Department of Pharmacology, University of North Carolina, Chapel Hill, North Carolina
| | - Laura E Herring
- Department of Pharmacology, University of North Carolina, Chapel Hill, North Carolina
| | - Ling Xie
- Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, North Carolina
| | - Xian Chen
- Department of Biochemistry and Biophysics, University of North Carolina, Chapel Hill, North Carolina
| | - Johnny Castillo Cabrera
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Kai Hong
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Chengheng Liao
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, North Carolina
- Department of Pathology, The University of Texas Southwestern Medical Center, Dallas, Texas
| | - Xianming Tan
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Albert S Baldwin
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, North Carolina
| | - Kan Gong
- Department of Urology, Peking University First Hospital, Beijing, China.
| | - Qing Zhang
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, North Carolina.
- Department of Pathology, The University of Texas Southwestern Medical Center, Dallas, Texas
- Department of Pharmacology, University of North Carolina, Chapel Hill, North Carolina
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina
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85
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Liu X, Simon JM, Xie H, Hu L, Wang J, Zurlo G, Fan C, Ptacek TS, Herring L, Tan X, Li M, Baldwin AS, Kim WY, Wu T, Kirschner MW, Gong K, Zhang Q. Genome-wide Screening Identifies SFMBT1 as an Oncogenic Driver in Cancer with VHL Loss. Mol Cell 2020; 77:1294-1306.e5. [PMID: 32023483 DOI: 10.1016/j.molcel.2020.01.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 11/09/2019] [Accepted: 01/01/2020] [Indexed: 11/15/2022]
Abstract
von Hippel-Lindau (VHL) is a critical tumor suppressor in clear cell renal cell carcinomas (ccRCCs). It is important to identify additional therapeutic targets in ccRCC downstream of VHL loss besides hypoxia-inducible factor 2α (HIF2α). By performing a genome-wide screen, we identified Scm-like with four malignant brain tumor domains 1 (SFMBT1) as a candidate pVHL target. SFMBT1 was considered to be a transcriptional repressor but its role in cancer remains unclear. ccRCC patients with VHL loss-of-function mutations displayed elevated SFMBT1 protein levels. SFMBT1 hydroxylation on Proline residue 651 by EglN1 mediated its ubiquitination and degradation governed by pVHL. Depletion of SFMBT1 abolished ccRCC cell proliferation in vitro and inhibited orthotopic tumor growth in vivo. Integrated analyses of ChIP-seq, RNA-seq, and patient prognosis identified sphingosine kinase 1 (SPHK1) as a key SFMBT1 target gene contributing to its oncogenic phenotype. Therefore, the pVHL-SFMBT1-SPHK1 axis serves as a potential therapeutic avenue for ccRCC.
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Affiliation(s)
- Xijuan Liu
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA
| | - Jeremy M Simon
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA; Department of Genetics, University of North Carolina, Chapel Hill, NC 27599, USA; UNC Neuroscience Center, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Haibiao Xie
- Department of Urology, Peking University First Hospital, Beijing, China
| | - Lianxin Hu
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA; Department of Pathology, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jun Wang
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA
| | - Giada Zurlo
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA; Department of Pathology, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Cheng Fan
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA
| | - Travis S Ptacek
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA; UNC Neuroscience Center, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Laura Herring
- Department of Pharmacology, University of North Carolina, Chapel Hill, NC 27599, USA; UNC Proteomics Core Facility, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Xianming Tan
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA
| | - Mingjie Li
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA; Department of Pathology, UT Southwestern Medical Center, Dallas, TX 75390, USA
| | - Albert S Baldwin
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA
| | - William Y Kim
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA
| | - Tao Wu
- Department of Systems Biology, Harvard Medical School, Boston, MA 02115
| | - Marc W Kirschner
- Department of Systems Biology, Harvard Medical School, Boston, MA 02115
| | - Kan Gong
- Department of Urology, Peking University First Hospital, Beijing, China
| | - Qing Zhang
- Lineberger Comprehensive Cancer Center, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA; Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, NC 27599, USA; Department of Pathology, UT Southwestern Medical Center, Dallas, TX 75390, USA.
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Robichaux J, Elamin Y, Vijayan R, He J, Hu L, Zhang F, Poteete A, Pisegna M, Nilsson M, Sun H, Negrao M, Le X, Raymond V, Lanman R, Frampton G, Miller V, Schrock A, Cross J, Wong K, Heymach J. IA30 Investigating and Overcoming Primary Resistance of EGFR and HER2 (ERBB2) Exon 20 Mutant NSCLC. J Thorac Oncol 2020. [DOI: 10.1016/j.jtho.2019.12.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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87
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88
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Komuro Y, Oyama K, Hu L, Sakatani K. Relationship Between Cognitive Dysfunction and Systemic Metabolic Disorders in Elderly: Dementia Might be a Systematic Disease. Adv Exp Med Biol 2020; 1232:91-97. [PMID: 31893399 DOI: 10.1007/978-3-030-34461-0_13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
Vascular cognitive impairment (VCI) plays an important role in dementia in elderly people, and refers to the contribution of vascular pathology to the entire spectrum of cognitive disorders, ranging from mild cognitive impairment to severe dementia, as well as the pathological spectrum, from 'pure' Alzheimer disease through degrees of vascular comorbidity to 'pure' vascular dementia. In the present study, we investigated the relationship between cognitive dysfunction and systemic metabolic disorders, by employing deep learning (DL). We studied 202 patients (73.4 ± 13.0 years), 94.6% of whom were undergoing treatment for lifestyle diseases, and 68.8% of whom had a history of cerebrovascular disorder. We evaluated cognitive dysfunction by performing a Mini Mental State Examination (MMSE). We performed general blood examination, including Complete Blood Count and Basic Metabolic Panel, and measured cerebral blood oxygenation in the prefrontal cortex (PFC) using time-resolved near infrared spectroscopy (TNIRS). We then used deep neural networks to assess the MMSE scores of the subjects based on the TNIRS parameters and the blood examination data, independently. Next, we compared predicted MMSE scores based on the TNIRS and the blood examination. There was a significant positive correlation between the TNIRS parameters and the blood examination data (r = 0.6, p < 0.01). These observations suggest that cognitive dysfunction in patients with VCI may be caused by combinations of systemic metabolic disorders such as energy and oxygen metabolisms and cerebral circulatory disturbance due to arteriosclerosis resulting from lifestyle-related diseases.
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Affiliation(s)
- Y Komuro
- Department of Electrical and Electronic Engineering, NEWCAT Research Institute, Koriyama, Japan
| | - K Oyama
- Department of Computer Science, Nihon University, Koriyama, Japan
| | - L Hu
- Department of Electrical and Electronic Engineering, NEWCAT Research Institute, Koriyama, Japan
| | - K Sakatani
- Department of Human and Engineered Environmental Studies, Universal Sports Health Science Laboratory, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwanoha, Kashiwa-shi, Chiba, Japan.
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89
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Hu L, Bai ZG, Ma XM, Bai N, Zhang ZT. MRFAP1 plays a protective role in neddylation inhibitor MLN4924-mediated gastric cancer cell death. Eur Rev Med Pharmacol Sci 2019; 22:8273-8280. [PMID: 30556867 DOI: 10.26355/eurrev_201812_16524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE MLN4924 is a second-generation small molecule inhibitor with anti-cancer activity that inhibits neddylation activation enzyme (NAE), subsequently blocking the neddylation-dependent activation of Cullin-RING E3 ligases (CRLs). Mof4 family associated protein 1 (MRFAP1) is a highly conserved, short half-life protein and one of the most up-regulated proteins in response to MLN4924 treatment. MRFAP1 has been identified as a novel cell cycle-related protein and a regulatory component monitoring and preventing genomic instability. However, whether MRFAP1 plays a role in MLN4924-mediated cancer cell death remains elusive. PATIENTS AND METHODS The expression of MRFAP1 in gastric cancer clinic samples was detected by Real-time PCR and Western blot. CRISPR (clustered regularly interspaced short palindromic repeats)/Cas9 system was used to knockout MRFAP1 gene in both AGS and SGC-7901 cells. The proliferation of GC cells was measured by CCK8 assay. The cell cycle distribution of GC cells was determined by fluorescence-activated cell sorting (FACS) assay. Co-immunoprecipitation assay was used to determine the interaction between MRFAP1 and P27. RESULTS MRFAP1 was downregulated in clinic gastric cancer samples at post-translational level. Overexpression of MRFAP1 decreased gastric cancer cells proliferation. CRISPR-mediated knockout of MRFAP1 increased the cytotoxicity of MLN4924 by augmenting MLN4924-induced G2/M arrest and apoptosis against gastric cancer cells. At the molecular level, we found that MLN4924 induced the interaction between P27 and MRFAP1, the latter associated with P27, which was further stabilized in response to MLN4924 treatment. CONCLUSIONS We showed a protective role of MRFAP1 in gastric cancer cells with MLN4924 treatment and suggested the potential possibility to combine MLN4924 with MRFAP1 inhibition to treat gastric cancer.
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Affiliation(s)
- L Hu
- Department of General Surgery, Beijing Jishuitan Hospital, The 4th Medical College of Peking University, Beijing, China.
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90
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Abstract
BACKGROUND HOTAIR is a variety of long non-coding RNA that has been recognized as a predictive factor for most cancers. This meta-analysis examined the complete investigative effectiveness of the level of HOTAIR expression for various cancers. METHODS Research on the diagnostic value of HOTAIR in different carcinomas was acquired by searching the online databases. Twelve studies consisting of 927 cancer cases were chosen in our research. The sensitivity as well as specificity of the involved articles was helpful to establish the summary receiver operator characteristic (SROC) curve in addition to compute the area under the SROC curve (AUC). In addition, a meta-regression test was done to determine the heterogeneity sources among available studies. RESULTS The combined effect sizes calculated from involved studies were as follows: sensitivity, 0.73; specificity, 0.83; PLR, 4.4; NLR, 0.32; DOR, 14; and an AUC of 0.85. Deeks' funnel plot asymmetry test showed no probable publication bias. The meta-regression analyses signified that the type of ethnicity is the major cause of heterogeneity. CONCLUSIONS The present meta-analysis suggested that elevated HOTAIR can be considered as a relatively accurate marker for cancer diagnosis and can be applied to support the diagnosis of various cancers.
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91
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Wang W, Han J, Yadin B, Ma Y, Ma J, Cai W, Xu Y, Hu L, Wang H, Song YP, Gu M, Sun L. Witnessing Quantum Resource Conversion within Deterministic Quantum Computation Using One Pure Superconducting Qubit. Phys Rev Lett 2019; 123:220501. [PMID: 31868406 DOI: 10.1103/physrevlett.123.220501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 10/22/2019] [Indexed: 06/10/2023]
Abstract
Deterministic quantum computation with one qubit (DQC1) is iconic in highlighting that exponential quantum speedup may be achieved with negligible entanglement. Its discovery catalyzed a heated study of general quantum resources, and various conjectures regarding their role in DQC1's performance advantage. Coherence and discord are prominent candidates, respectively, characterizing nonclassicality within localized and correlated systems. Here we realize DQC1 within a superconducting system, engineered such that the dynamics of coherence and discord can be tracked throughout its execution. We experimentally confirm that DQC1 acts as a resource converter, consuming coherence to generate discord during its operation. Our results highlight superconducting circuits as a promising platform for both realizing DQC1 and related algorithms, and experimentally characterizing resource dynamics within quantum protocols.
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Affiliation(s)
- W Wang
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - J Han
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - B Yadin
- Atomic and Laser Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford, OX1 3PU, United Kingdom
| | - Y Ma
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - J Ma
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - W Cai
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Y Xu
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - L Hu
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - H Wang
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Y P Song
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Mile Gu
- School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 639673, Republic of Singapore
- Complexity Institute, Nanyang Technological University, Singapore 639673, Republic of Singapore
- Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543, Republic of Singapore
| | - L Sun
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
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Xiong ZJ, Zhang Q, Wang DX, Hu L. Overexpression of TUG1 promotes neuronal death after cerebral infarction by regulating microRNA-9. Eur Rev Med Pharmacol Sci 2019; 22:7393-7400. [PMID: 30468486 DOI: 10.26355/eurrev_201811_16278] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This study aims at investigating whether TUG1 (Taurine Upregulated Gene 1) can regulate FOXO3 expression through competitive binding to microRNA-9, thus leading to increased neuronal death and promoting the occurrence and development of acute cerebral infarction. MATERIALS AND METHODS TUG1 and FOXO3 expressions in cerebral cortical neurons of MCAO mice, control mice and primary neurons were detected by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). The effects of TUG1 and FOXO3 on neuronal apoptosis were determined by TUNEL after cerebral infarction area was stained with TTC. The binding condition of microRNA-9, TUG1 and FOXO3 was verified by the Luciferase reporter gene assay. Western blot was performed to detect the protein expressions of B-cell lymphoma-2 (BCL-2) and BCL2-Associated X (BAX) after altering the TUG1 or FOXO3 expression in primary neurons. RESULTS TUG1 and FOXO3 were overexpressed in cerebral cortical neurons of MCAO mice and primary neurons. The inhibition of TUG1 or FOXO3 resulted in less neuronal apoptosis. Luciferase reporter gene assay demonstrated that TUG1 regulates FOXO3 via TUG1/microRNA-9/FOXO3 regulatory network. Besides, TUG1 inhibited BCL-2 but promoted BAX expression in primary neurons. CONCLUSIONS The overexpression of TUG1 can promote neuronal death after cerebral infarction in mice by competitive binding to microRNA-9 and promotion of FOXO3 expression.
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Affiliation(s)
- Z-J Xiong
- Department of Neurosurgery, Wuhan Central Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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93
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Dai H, Coleman DN, Hu L, Martinez-Cortés I, Wang M, Parys C, Shen X, Loor JJ. Methionine and arginine supplementation alter inflammatory and oxidative stress responses during lipopolysaccharide challenge in bovine mammary epithelial cells in vitro. J Dairy Sci 2019; 103:676-689. [PMID: 31733877 DOI: 10.3168/jds.2019-16631] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 09/24/2019] [Indexed: 12/13/2022]
Abstract
Mastitis, inflammation of the udder, is one of the most common diseases hampering milk yield of dairy cows. Methionine (Met) and arginine (Arg) are key nutrients with potential to regulate inflammation and oxidative stress. The aim of this study was to evaluate the effect of increased supply of Met and Arg on mRNA and protein abundance associated with innate immune response and redox balance during lipopolysaccharide (LPS) stimulation in primary bovine mammary epithelial cells (BMEC). Primary BMEC (n = 4 replicates per treatment) were pre-incubated for 12 h in media with the following amino acid combinations: ideal profile of amino acids (control; Con), increased Met supply (incMet), increased Arg supply (incArg), and increased supply of Met and Arg (incMetArg). Subsequently, cells were challenged with or without LPS (1 µg/mL) and incubated for 6 h. Data were analyzed as a 2 × 2 × 2 factorial using the MIXED procedure of SAS 9.4 (SAS Institute Inc., Cary, NC). The downregulation of SLC36A1 and SLC7A1 mRNA abundance induced by LPS was attenuated in the incArg cultures. Although challenge with LPS led to lower abundance of proteins related to the antioxidant response (NFE2L2, NQO1, GPX1), lower levels of ATG7, and lower mRNA abundance of GPX3, we found little effect in cultures with incMet or incArg. Cultures with incMet, incArg, or incMetArg led to attenuation of the upregulation of SOD2 and NOS2 induced by LPS. Abundance of phosphorylated p65 (RELA) was greater after LPS stimulation, but the response was attenuated in cultures with incMet. The greater ratio of pRELA to total RELA in responses to LPS was also attenuated in cultures with incMetArg. The greater mRNA abundance of the proinflammatory cytokine IL1B induced by LPS was attenuated in cultures with incMet, and the same trend induced by LPS on CXCL2 was also alleviated in cultures with incArg. Overall, the data suggest that greater supply of Met and Arg alleviated the proinflammatory responses triggered by LPS through controlling the abundance of proinflammatory cytokines and chemokines and activity of NF-κB. Little benefit on oxidative stress induced by LPS challenge in BMEC was detected with greater supply of Met and Arg.
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Affiliation(s)
- H Dai
- College of Veterinary Medicine, Nanjing Agricultural University, 210095 P. R. China; Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801
| | - D N Coleman
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801
| | - L Hu
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801; College of Animal Science and Technology, Yangzhou University, 225009 P. R. China
| | - I Martinez-Cortés
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801; Agricultural and Animal Production Department, UAM-Xochimilco, Mexico City 04960
| | - M Wang
- College of Animal Science and Technology, Yangzhou University, 225009 P. R. China
| | - C Parys
- Evonik Nutrition and Care GmbH, Hanau-Wolfgang, 63457, Germany
| | - X Shen
- College of Veterinary Medicine, Nanjing Agricultural University, 210095 P. R. China
| | - J J Loor
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana 61801.
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94
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Cai N, Hu L, Xie Y, Gao JH, Zhai W, Wang L, Jin QJ, Qin CY, Qiang R. MiR-17-5p promotes cervical cancer cell proliferation and metastasis by targeting transforming growth factor-β receptor 2. Eur Rev Med Pharmacol Sci 2019; 22:1899-1906. [PMID: 29687841 DOI: 10.26355/eurrev_201804_14712] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE MicroRNAs (miRNAs) play critical roles in post-translational gene expression. The aim of the current study was to investigate the effects of miR-17-5p in cervical cancer. PATIENTS AND METHODS Fifteen clinical cervical cancer tissue samples, as well as their paired adjacent noncancerous tissues, were collected. The microarray was performed to identify differential miRNAs in cervical cancer. Luciferase reporter assay was conducted to identify the target gene of selected miRNA. SiHa was transfected with mimics, inhibitors as well as negative controls of miR-17-5p and Targeting Transforming Growth Factor-β Receptor 2 (TGFBR2) open reading frame or siRNA. Cell counting kit-8 (CCK-8) assay and transwell experiment were performed to detect the proliferation rate and metastasis, respectively. Western blotting and quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) analysis were used to analyze TGFBR2 expression. Balb/c nude mice were utilized to verify the effect of miR-17-5p in vivo. RESULTS Microarray analysis identified miR-17-5p as our interesting miRNA, and luciferase reporter assay identified TGFBR2 as its target gene. MiR-17-5p overexpression significantly enhanced cervical cancer cell proliferation and metastasis. In-vivo study also verified that miR-17-5p overexpression stimulated cervical cancer growth. CONCLUSIONS MiR-17-5p enhances cervical cancer proliferation and metastasis via targeting TGFBR2. It is proposed that targeting miR-17-5p may be a promising therapeutic approach for cervical cancer.
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Affiliation(s)
- N Cai
- The First Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, China.
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95
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Wang D, Liang P, Yu Y, Fu X, Hu L. An integrated methodology for assessing accident probability of natural gas distribution station with data uncertainty. J Loss Prev Process Ind 2019. [DOI: 10.1016/j.jlp.2019.103941] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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96
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Hu L, Sharir T, Fish MB, Ruddy TD, Di Carli M, Dorbala S, Einstein AJ, Betancur J, Eisenberg E, Commandeur F, Germano G, Damini D, Berman D, Slomka PJ. 29Prognostic safety of automatic cancellation of rest myocardial perfusion scan by machine learning: a report from multicenter REFINE SPECT registry of new generation SPECT. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
We aimed to develop a machine learning (ML) computer score derived from stress imaging and clinical data, which indicates if the rest scan could be automatically and safely canceled in the routine stress/rest myocardial perfusion SPECT (MPS).
Methods
A total of 20414 stress/rest cases from the REFINE SPECT registry collected from 5 sites in 3 countries with Tc-99m-based MPS images, clinical data, and clinical follow-up were included in the study. All images were automatically processed at our Medical Center. The automatically generated myocardial contours were checked by experienced technologists. In total, 93 variables (26 clinical, 17 stress-test, and 50 stress-imaging variables) were used to build a LogitBoost model for prediction of adverse events (AE), including coronary revascularization, death, myocardial infarction, and unstable angina. 10-fold cross-validation was performed to separate test from validation data for the assessment of ML. The overall ML predictive performance was compared to quantitative (stress total perfusion deficit [TPD]) by the area under the receiver operating characteristic curves (AUC). ML cut-off (ML1) to simulate the decision of cancellation of the rest scan was set to result in the same % of normal scans as these determined by the normal clinical reader diagnosis on a 4-point scale in the whole population, or the same % of scans with visual summed stress scores (SSS) = 0 in the subpopulation with available SSS. A second ML cutoff (ML2) was established to achieve a 1% annual risk of AE. The annual risk of AE of the normal ML score was compared with normal clinical diagnosis and with the finding of SSS = 0.
Results
The mean follow-up interval was 4.7±1.5 years. Overall, 3542 AE were observed (3.7% annual risk). The AUC for AE was higher for ML (0.780±0.005) than for stress TPD (0.698±0.006) (p<0.001). Normal clinical diagnosis was reported in 60% cases. In 70% (14242 scans) with available segmental scores, 53% had SSS=0. ML1 and ML2 thresholds were compared with normal visual diagnosis and with SSS = 0 for AE (Figure). ML1 achieved a lower annual risk (1.5%) than normal clinical diagnosis (2.1%) or SSS = 0 (1.6% versus 2.3%) (p<0.001). The more conservative ML2 threshold with a 1% annual risk of AE resulted in a 40% canceling rate.
Figure 1
Conclusion
ML could be used to automatically cancel the rest MPS scan with the same proportion as using normal visual MPS reading, but with significantly lower AE rate in stress-only scans.
Acknowledgement/Funding
R01HL089765 from the National Heart, Lung, and Blood Institute/National Institutes of Health (NHLBI/NIH)
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Affiliation(s)
- L Hu
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - T Sharir
- Assuta Medical Center, Tel Aviv, Israel
| | - M B Fish
- Sacred Heart Medical Center, Springfield, United States of America
| | - T D Ruddy
- University of Ottawa Heart Institute, Ottawa, Canada
| | - M Di Carli
- Brigham and Womens Hospital, Boston, United States of America
| | - S Dorbala
- Brigham and Womens Hospital, Boston, United States of America
| | - A J Einstein
- Columbia University Medical Center, New York, United States of America
| | - J Betancur
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - E Eisenberg
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - F Commandeur
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - G Germano
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - D Damini
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - D Berman
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - P J Slomka
- Cedars-Sinai Medical Center, Los Angeles, United States of America
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97
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Robichaux J, Le X, Elamin Y, Nilsson M, Hu L, He J, Zhang F, Poteete A, Sun H, Rinsurongkawong W, Cross J, Heymach J. P1.14-08 Activity of Poziotinib and Other 2nd-Gen Quinazoline EGFR TKIs in Atypical Exon18 and Acquired Osimertinib Resistance Mutants. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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98
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Song Z, Hu L, Han Q, Wang X, Huo Y, Jiao T, Ren G, Wang K, Yin B, Jia Y, Song J, Cheng H, Wang H, Lou F, Cao S, Zang A. P2.01-45 Clinico-Molecular Characteristics and Prognostic Outcomes of TP53 Mutated Patients with Advanced Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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99
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Piccirilli M, Shrestha S, Kagiyama N, Hu L, Kulkarni H, Sengupta PP. P2437Screening for cardiac relaxation abnormalities using surface ECG wavelets for identifying high-risk cardiac phenotypic abnormalities. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The impairment of myocardial relaxation is a strong predictor of all-cause mortality and has been proposed to be a potential tool for cardiovascular (CV) risk stratification. We investigated a novel signal-processed electrocardiography (spECG) technique to extract the features of abnormal myocardial relaxation as a screening tool to identify high-risk CV patients.
Methods
Time–frequency-energy features extracted from continuous wavelet-transformed spECG (Fig. A) were obtained in 1,006 cases. A machine learning model was trained for predicting abnormal myocardial relaxation as a screening tool for detecting high-risk CV patients. High-risk CV phenotype was defined as presence of LV hypertrophy, advanced LV diastolic dysfunction (grade 2 or 3), LV ejection fraction <50%, and/or significant valvular heart disease.
Results
After training with 5-fold cross validation using data from 810 patients, the machine learning model when tested in an independent hold-out validation set of 180 cases, showed an area under receiver-operating characteristic curve (AUC) of 0.83 (p<0.001) for prediction of myocardial relaxation impairment (Fig. B). A prediction of abnormal relaxation was associated with older patients (64±11 vs. 45±16 years old, p<0.001) with a higher prevalence of coronary artery disease (23% vs. 7%, p=0.004), hypertension (70% vs. 40%, p<0.001), and diabetes (30% vs. 9%, p=0.001). Furthermore, a prediction of abnormal myocardial relaxation was associated with increased likelihood of high-risk CV phenotypes (Odds ratio: 3.93, p<0.001) including LV hypertrophy (Odds ratio: 2.62, p=0.028), advanced LV diastolic dysfunction (Odds ratio: 11.4, p=0.020), and LV ejection fraction <50% (Odds ratio 10.5, p=0.025). Age and gender modified the prediction of abnormal relaxation with higher diagnostic value seen for patients under 60 years (Fig C, AUC: 0.88, p<0.001) and in male patients (Fig D, AUC: 0.87, p<0.001). The algorithm for abnormal relaxation also showed robust prediction of LV ejection fraction <50% (Fig E, AUC: 0.91, p<0.001) in male patients. spECG showed significant net reclassification improvement (0.47, p<0.001) and integrated discrimination improvement (0.16, p<0.001) over traditional surface ECG interpretation using Glasgow score for predicting abnormal relaxation and other high-risk phenotypic presentations.
ROC curves
Conclusion
The spECG provided a robust prediction of abnormal myocardial relaxation and may be a valuable screening strategy for early detection of high-risk cardiac structural and functional abnormalities.
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Affiliation(s)
- M Piccirilli
- WVU Heart & Vascular Institute, Cardiovascular and Thoracic Surgery, Morgantown, United States of America
| | - S Shrestha
- WVU Heart & Vascular Institute, Cardiovascular and Thoracic Surgery, Morgantown, United States of America
| | - N Kagiyama
- WVU Heart & Vascular Institute, Cardiovascular and Thoracic Surgery, Morgantown, United States of America
| | - L Hu
- WVU Heart & Vascular Institute, Cardiovascular and Thoracic Surgery, Morgantown, United States of America
| | - H Kulkarni
- WVU Heart & Vascular Institute, Cardiovascular and Thoracic Surgery, Morgantown, United States of America
| | - P P Sengupta
- WVU Heart & Vascular Institute, Cardiovascular and Thoracic Surgery, Morgantown, United States of America
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100
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Elamin Y, Robichaux J, Carter B, Altan M, Gibbons D, Fossella F, Simon G, Lam V, Blumenschein G, Tsao A, Kurie J, Mott F, Negrao M, Hu L, He J, Nilsson M, Roeck B, Yang Z, Papadimitrakopoulou V, Heymach J. MA09.03 Identification of Mechanisms of Acquired Resistance to Poziotinib in EGFR Exon 20 Mutant Non-Small Cell Lung Cancer (NSCLC). J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.567] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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