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Zheng XQ, Guo JP, Yang H, Kanai M, He LL, Li YY, Koomen JM, Minton S, Gao M, Ren XB, Coppola D, Cheng JQ. Retraction Note: Aurora-A is a determinant of tamoxifen sensitivity through phosphorylation of ERα in breast cancer. Oncogene 2024; 43:1160. [PMID: 38396296 PMCID: PMC11036404 DOI: 10.1038/s41388-024-02983-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2024]
Affiliation(s)
- X Q Zheng
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, USA
- Departments of Thyroid and Neck Tumour, Tianjin Medical University Cancer Institute and Hospital, Oncology Key Laboratory of cancer prevention and therapy, National Clinical Research Center of Cancer, Tianjin, PR China
- Department of Immunology, Tianjin Medical University Cancer Institute and Hospital, Oncology Key Laboratory of cancer prevention and therapy, National Clinical Research Center of Cancer, Tianjin, PR China
| | - J P Guo
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, USA
| | - H Yang
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, USA
| | - M Kanai
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, USA
| | - L L He
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, USA
| | - Y Y Li
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, USA
| | - J M Koomen
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, USA
| | - S Minton
- Departments of Women's Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, USA
| | - M Gao
- Departments of Thyroid and Neck Tumour, Tianjin Medical University Cancer Institute and Hospital, Oncology Key Laboratory of cancer prevention and therapy, National Clinical Research Center of Cancer, Tianjin, PR China
| | - X B Ren
- Department of Immunology, Tianjin Medical University Cancer Institute and Hospital, Oncology Key Laboratory of cancer prevention and therapy, National Clinical Research Center of Cancer, Tianjin, PR China
| | - D Coppola
- Departments of Women's Pathology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, USA
| | - J Q Cheng
- Department of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL, USA.
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Zuo QJ, He LL, Ma S, Zhang GR, Zhang TT, Wang Y, Guo YF. [Effects of canagliflozin on amino acid metabolism in atherosclerotic mice]. Zhonghua Xin Xue Guan Bing Za Zhi 2024; 52:64-71. [PMID: 38220457 DOI: 10.3760/cma.j.cn112148-20231009-00275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
Objective: To explore the possible anti-atherosclerotic mechanisms of glucose co-transporter-2 inhibitor canagliflozin. Methods: ApoE-/-mice fed on Western diet were randomly assigned into the model group (n=10) and the canagliflozin group (n=10). C57BL/6J mice fed on normal diet were chosen as the control group (n=10). Mice in the canagliflozin group were gavaged with canagliflozin for 14 weeks. The presence and severity of atherosclerosis were evaluated with HE and oil red O stainings in aortic root section slices. PCR assay was performed to determine the mRNA expression levels of nitric oxide synthase. Hepatic transcriptome analysis and hepatic amino acid detection were conducted using RNA-seq and targeted LC-MS, respectively. Results: HE staining and oil red O staining of the aortic root showed that AS models were successfully established in ApoE-/-mice fed on Western diet for 14 weeks. Canagliflozin alleviated the severity of atherosclerosis in pathology. Hepatic transcriptome analysis indicated that canagliflozin impacted on amino acid metabolism, especially arginine synthesis in ApoE-/-mice. Targeted metabolomics analysis of amino acids showed that canagliflozin reduced hepatic levels of L-serine, L-aspartic acid, tyrosine, L-hydroxyproline, and L-citrulline, but raised the hepatic level of L-arginine. Compared to the model group, the canagliflozin group exhibited higher serum arginine and nitric oxide levels as well as elevated nitric oxide mRNA expression in aortic tissues (P<0.05). Conclusion: Canagliflozin regulated the amino acid metabolism, reduced the levels of glucogenic amino acids,and promoted the synthesis of arginine in atherosclerotic mice.
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Affiliation(s)
- Q J Zuo
- Department of Geriatric Cardiology, Hebei General Hospital, Shijiazhuang 050051, China
| | - L L He
- Department of Geriatric Cardiology, Hebei General Hospital, Shijiazhuang 050051, China
| | - S Ma
- Department of Pain Medcine, Hebei General Hospital, Shijiazhuang 050051, China
| | - G R Zhang
- Department of Cardiology, the Third Hospital of Shijiazhuang City, Shijiazhuang 050000, China
| | - T T Zhang
- Department of Geriatric Cardiology, Hebei General Hospital, Shijiazhuang 050051, China
| | - Y Wang
- Department of Geriatric Cardiology, Hebei General Hospital, Shijiazhuang 050051, China
| | - Y F Guo
- Department of Geriatric Cardiology, Hebei General Hospital, Shijiazhuang 050051, China
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Zhou CX, He LL, Zhu XY, Li ZX, Duan HL, Liu W, Gu LL, Li J. [Report content and prenatal diagnosis of non-invasive prenatal testing for sex chromosome aneuploidy]. Zhonghua Fu Chan Ke Za Zhi 2023; 58:766-773. [PMID: 37849257 DOI: 10.3760/cma.j.cn112141-20230412-00168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
Objective: To analyze the report content, the methods and results of prenatal diagnosis of high risk of sex chromosome aneuploidy (SCA) in non-invasive prenatal testing (NIPT). Methods: A total of 227 single pregnancy pregnant women who received genetic counseling and invasive prenatal diagnosis at Drum Tower Hospital Affiliated to the Medical School of Nanjing University from January 2015 to April 2022 due to the high risk of SCA suggested by NIPT were collected. The methods and results of prenatal diagnosis were retrospectively analyzed, and the results of chromosome karyotype analysis and chromosome microarray analysis (CMA) were compared. The relationship between NIPT screening and invasive prenatal diagnosis was analyzed. Results: (1) Prenatal diagnosis methods for 277 SCA high risk pregnant women included 73 cases of karyotyping, 41 cases of CMA and 163 cases of karyotyping combined with CMA, of which one case conducted amniocentesis secondly for further fluorescence in situ hybridization (FISH) testing. Results of invasive prenatal diagnosis were normal in 166 cases (59.9%, 166/277), and the abnormal results including one case of 45,X (0.4%, 1/277), 18 cases of 47,XXX (6.5%, 18/277), 36 cases of 47,XXY (13.0%, 36/277), 20 cases of 47,XYY (7.2%, 20/277), 1 case of 48,XXXX (0.4%, 1/277), 20 cases of mosaic SCA (7.2%, 20/277), 5 cases of sex chromosome structural abnormality or large segment abnormality (1.8%, 5/277), and 10 cases of other abnormalities [3.6%, 10/277; including 9 cases of copy number variation (CNV) and 1 case of balanced translocation]. Positive predictive value (PPV) for SCA screening by NIPT was 34.7% (96/277). (2) Among the 163 cases tested by karyotyping combined with CMA, 11 cases (6.7%, 11/163) showed inconsistent results by both methods, including 5 cases of mosaic SCA, 1 case of additional balanced translocation detected by karyotyping and 5 cases of additional CNV detected by CMA. (3) NIPT screening reports included 149 cases of "sex chromosome aneuploidy"(53.8%, 149/277), 54 cases of "number of sex chromosome increased" (19.5%, 54/277), and 74 cases of "number of sex chromosome or X chromosome decreased" (26.7%, 74/277). The PPV of "number of sex chromosome increased" and "number of sex chromosome or X chromosome decreased" were 72.2% (39/54) and 18.9% (14/74), respectively, and the difference was statistically significant (χ2=34.56, P<0.01). Conclusions: NIPT could be served as an important prenatal screening technique of SCA, especially for trisomy and mosaicism, but the PPV is comparatively low. More information of NIPT such as the specific SCA or maternal SCA might help improving the confidence of genetic counseling and thus guide clinic management. Multi technology platforms including karyotyping, CMA and FISH could be considered in the diagnosis of high risk of SCA by NIPT.
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Affiliation(s)
- C X Zhou
- Medical Center for Obstetrics and Gynecology, Drum Tower Hospital Affiliated to the Medical School of Nanjing University, Nanjing 210008, China
| | - L L He
- Medical Center for Obstetrics and Gynecology, Drum Tower Hospital Affiliated to the Medical School of Nanjing University, Nanjing 210008, China
| | - X Y Zhu
- Medical Center for Obstetrics and Gynecology, Drum Tower Hospital Affiliated to the Medical School of Nanjing University, Nanjing 210008, China
| | - Z X Li
- Medical Center for Obstetrics and Gynecology, Drum Tower Hospital Affiliated to the Medical School of Nanjing University, Nanjing 210008, China
| | - H L Duan
- Medical Center for Obstetrics and Gynecology, Drum Tower Hospital Affiliated to the Medical School of Nanjing University, Nanjing 210008, China
| | - W Liu
- Medical Center for Obstetrics and Gynecology, Drum Tower Hospital Affiliated to the Medical School of Nanjing University, Nanjing 210008, China
| | - L L Gu
- Medical Center for Obstetrics and Gynecology, Drum Tower Hospital Affiliated to the Medical School of Nanjing University, Nanjing 210008, China
| | - J Li
- Medical Center for Obstetrics and Gynecology, Drum Tower Hospital Affiliated to the Medical School of Nanjing University, Nanjing 210008, China
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He LL, Tang YZ, Wu HY. [Congenital peribronchial myofibroblastic tumor: report of a case]. Zhonghua Bing Li Xue Za Zhi 2023; 52:961-963. [PMID: 37670633 DOI: 10.3760/cma.j.cn112151-20230320-00211] [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: 09/07/2023]
Affiliation(s)
- L L He
- Department of Pathology, Children's Hospital of Nanjing Medical University, Nanjing 210019, China
| | - Y Z Tang
- Department of Pathology, Children's Hospital of Nanjing Medical University, Nanjing 210019, China
| | - H Y Wu
- Department of Pathology, Children's Hospital of Nanjing Medical University, Nanjing 210019, China
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Zhou Q, He LL, Du LZ, Zhao NB, Lv CP, Liang JF. Impaired function of skeletal stem cells derived from growth plates in ovariectomized mice. J Bone Miner Metab 2023; 41:163-170. [PMID: 36847866 DOI: 10.1007/s00774-023-01406-1] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 01/18/2023] [Indexed: 03/01/2023]
Abstract
INTRODUCTION Mouse skeletal stem cells (mSSCs, CD45-Ter119-Tie2-CD51+Thy-6C3-CD105-CD200+population) are identified in growth plates (GP) and play important roles in bone regeneration. However, the role of mSSCs in osteoporosis remains unclear. MATERIALS AND METHODS The GP were stained by HE staining, and the mSSC lineage was analyzed by flow cytometry at postnatal of 14 days and 30 days in wild-type mice. The mice (8 weeks) were either sham operated or ovariectomy (OVX) and then sacrificed at 2, 4 and 8 w. The GP were stained by Movat staining, and mSSC lineage was analyzed. Then, mSSCs were sorted by fluorescence-activated cell sorting (FACS); the clonal ability, chondrogenic differentiation and osteogenic differentiation were evaluated, and the changed genes were analyzed by RNA-seq. RESULTS The percentage of mSSCs were decreased with the narrow GP. Heights of GP were decreased significantly in 8w-ovx mice compared with 8w-sham mice. We found the percentage of mSSCs were decreased in mice at 2w after ovx, but the cell numbers were not changed. Further, the percentage and cell numbers of mSSCs were not changed at 4w and 8w after ovx. Importantly, the clonal ability, chondrogenic differentiation and osteogenic differentiation of mSSCs were impaired at 8w after ovx. We found 114 genes were down-regulated in mSSCs, including skeletal developmental genes such as Col10a1, Col2a1, Mef2c, Sparc, Matn1, Scube2 and Dlx5. On the contrary, 526 genes were up-regulated, including pro-inflammatory genes such as Csf1, Nfkbla, Nfatc2, Nfkb1 and Nfkb2. CONCLUSION Function of mSSCs was impaired by up-regulating pro-inflammatory genes in ovx-induced osteoporosis.
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Affiliation(s)
- Q Zhou
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - L L He
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - L Z Du
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - N B Zhao
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - C P Lv
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - J F Liang
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China.
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He LL, Wu HY, Tang YZ. [Sialoblastoma: report of a case]. Zhonghua Bing Li Xue Za Zhi 2022; 51:242-244. [PMID: 35249292 DOI: 10.3760/cma.j.cn112151-20210620-00447] [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: 06/14/2023]
Affiliation(s)
- L L He
- Department of Pathology, Children's Hospital of Nanjing Medical University, Nanjing 210019, China
| | - H Y Wu
- Department of Pathology, Children's Hospital of Nanjing Medical University, Nanjing 210019, China
| | - Y Z Tang
- Department of Pathology, Children's Hospital of Nanjing Medical University, Nanjing 210019, China
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He LL, Wu HY, Tang YZ. [Lipofibromatosis-like neural tumor: report of a case]. Zhonghua Bing Li Xue Za Zhi 2021; 50:1064-1066. [PMID: 34496504 DOI: 10.3760/cma.j.cn112151-20201229-00983] [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)
- L L He
- Department of Pathology,Children's Hospital of Nanjing Medical University,Nanjing 210019, China
| | - H Y Wu
- Department of Pathology,Children's Hospital of Nanjing Medical University,Nanjing 210019, China
| | - Y Z Tang
- Department of Pathology,Children's Hospital of Nanjing Medical University,Nanjing 210019, China
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Zuo QJ, He LL, Ma S, Guo YF. [Protective effects of sodium-dependent glucose cotransporter-2 inhibitors on cardiovascular system]. Zhonghua Nei Ke Za Zhi 2021; 60:75-79. [PMID: 33397028 DOI: 10.3760/cma.j.cn112138-20200213-00072] [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: 06/12/2023]
Affiliation(s)
- Q J Zuo
- Department of Geriatrics, Hebei General Hospital,Shijiazhuang 050051,China
| | - L L He
- Department of Geriatrics, Hebei General Hospital,Shijiazhuang 050051,China
| | - S Ma
- Department of Pain treatment, Hebei General Hospital, Shijiazhuang 050051,China
| | - Y F Guo
- Department of Geriatrics, Hebei General Hospital,Shijiazhuang 050051,China
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Sun Y, Cheng J, Luo Y, Yan XL, Wu ZX, He LL, Tan YR, Zhou ZH, Li QN, Zhou L, Wu RT, Lan T, Ma JY. Attenuation of a virulent swine acute diarrhea syndrome coronavirus strain via cell culture passage. Virology 2019; 538:61-70. [PMID: 31580972 PMCID: PMC7112038 DOI: 10.1016/j.virol.2019.09.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/16/2019] [Accepted: 09/18/2019] [Indexed: 12/21/2022]
Abstract
Swine acute diarrhea syndrome coronavirus (SADS-CoV) is a newly identified enteric alphacoronavirus that causes fatal diarrhea in newborn piglets in China. Here, we propagated a virulent strain SADS-CoV/CN/GDWT/2017 in Vero cells for up to 83 passages. Four strains of SADS-CoV/GDWT-P7, -P18, -P48 and -P83 were isolated and characterized. Sequence alignments showed that these four novel strains exhibited 16 nucleotide mutations and resultant 10 amino acid substitutions in open reading frame 1a/1b, spike, NS3a, envelope, membrane and nucleocapsid proteins. Furthermore, a 58-bp deletion in NS7a/7b was found in P48 and P83 strains, which led to the loss of NS7b and 38 amino acid changes of NS7a. Pig infection studies showed that the P7 strain caused typical watery diarrhea, while the P83 strain induced none-to-mild, delayed and transient diarrhea. This is the first report on cell adaption of a virulent SADS-CoV strain, which gives information on the potential virulence determinants of SADS-CoV.
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Affiliation(s)
- Y Sun
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - J Cheng
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Y Luo
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - X L Yan
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Z X Wu
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - L L He
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Y R Tan
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Z H Zhou
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Q N Li
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - L Zhou
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - R T Wu
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - T Lan
- College of Animal Science, South China Agricultural University, Guangzhou, China.
| | - J Y Ma
- College of Animal Science, South China Agricultural University, Guangzhou, China.
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Gao CX, Liu YX, Wang YY, Lyu HH, He LL, Yang XY, Yang SM. [Stability of biochar and the mechanisms underlying its response to mineral modification: A review.]. Ying Yong Sheng Tai Xue Bao 2019; 30:3245-3251. [PMID: 31529900 DOI: 10.13287/j.1001-9332.201909.029] [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: 11/04/2022]
Abstract
Biochar, with high degree of carbon stability, is considered as a kind of carbon sequestration material that can effectively alleviate the greenhouse effect. It is of great significance for carbon sequestration and mitigation to develop biochar with high carbon retention and stability. Mineral modification can regulate the stability of biochar. However, the relevant research has not received enough attention, and the underlying mechanism is not very clear. Firstly, the evaluation indices of biochar stability were summarized, mainly including H/C atomic ratio, O/C atomic ratio, coefficient of stability R50, volatile-matter content, thermal weight loss rate of carbon, carbon (chemical) oxidation loss rate, and cumulative CO2 emission of microbial mineralization. Then, based on the analysis of impact factors of biochar stability (such as raw material type, carbonization condition, external environment, etc.), we reviewed research progress about the effects of mineral modification on biochar stability. Furthermore, possible mechanisms of both enhancement and weakening effects on biochar stability were put forward. Enhancement is mainly due to the effects of physical barrier of minerals and the organic mineral complex formed by the interaction of mineral and biochar. While weakening effect is mainly due to special mineral composition, such as the Fe-bearing mineral composition, which promotes the thermal decomposition of biochar at high temperature. Finally, future research directions were proposed, in order to promote the development of carbon sequestration technology of biochar and provide technical support and theoretical basis for obtaining more stable biochar.
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Affiliation(s)
- Cheng Xiang Gao
- Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.,College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, Shanxi, China
| | - Yu Xue Liu
- Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.,Engineering Research Center of Biochar of Zhejiang Province, Hangzhou 310021, China
| | - Yu Ying Wang
- Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.,Engineering Research Center of Biochar of Zhejiang Province, Hangzhou 310021, China
| | - Hao Hao Lyu
- Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.,Engineering Research Center of Biochar of Zhejiang Province, Hangzhou 310021, China
| | - Li Li He
- Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.,Engineering Research Center of Biochar of Zhejiang Province, Hangzhou 310021, China
| | - Xue Yun Yang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, Shanxi, China
| | - Sheng Mao Yang
- Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.,College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, Shanxi, China.,Engineering Research Center of Biochar of Zhejiang Province, Hangzhou 310021, China
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Yan XL, Li YY, He LL, Wu JL, Tang XY, Chen GH, Mai KJ, Wu RT, Li QN, Chen YH, Sun Y, Ma JY. 12 novel atypical porcine pestivirus genomes from neonatal piglets with congenital tremors: A newly emerging branch and high prevalence in China. Virology 2019; 533:50-58. [PMID: 31103885 DOI: 10.1016/j.virol.2019.04.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [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: 12/22/2018] [Revised: 04/23/2019] [Accepted: 04/23/2019] [Indexed: 10/26/2022]
Abstract
Atypical porcine pestivirus (APPV), a newly discovered member of the genus Pestivirus, is considered to be associated with congenital tremors (CT) in piglets. From June 2016 to January 2018, 440 serum and tissue samples from CT-affected piglets in Anhui, Guangdong and Guangxi provinces were collected to detect APPV. The results showed a high level of 63.4% preference for APPV in 27 swine farms and complicated co-infection cases between APPV and other 12 swine viruses. Meanwhile, 12 novel APPV genomes were screened and identified. Results showed that complete genomes, Npro and NS5A genes of these novel 12 APPV sequences revealed 80.5%-99.8%, 78%-100% and 76.9%-99.8% nucleotide identities, respectively. Phylogenetic analyses based on sequences of full-length genomes, Npro and NS5A genes of APPV indicated three well-defined clades including a newly emerging branch in China. This study provides novel epidemiological information of APPV in China.
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Affiliation(s)
- X L Yan
- College of Animal Science, South China Agricultural University, Guangzhou, China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong, China
| | - Y Y Li
- College of Animal Science, South China Agricultural University, Guangzhou, China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong, China
| | - L L He
- College of Animal Science, South China Agricultural University, Guangzhou, China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong, China
| | - J L Wu
- College of Animal Science, South China Agricultural University, Guangzhou, China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong, China
| | - X Y Tang
- College of Animal Science, South China Agricultural University, Guangzhou, China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong, China
| | - G H Chen
- College of Animal Science, South China Agricultural University, Guangzhou, China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong, China
| | - K J Mai
- College of Animal Science, South China Agricultural University, Guangzhou, China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong, China
| | - R T Wu
- College of Animal Science, South China Agricultural University, Guangzhou, China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong, China
| | - Q N Li
- College of Animal Science, South China Agricultural University, Guangzhou, China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong, China
| | - Y H Chen
- College of Animal Science, South China Agricultural University, Guangzhou, China
| | - Y Sun
- College of Animal Science, South China Agricultural University, Guangzhou, China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong, China.
| | - J Y Ma
- College of Animal Science, South China Agricultural University, Guangzhou, China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong, China.
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Xu YX, He LL, Liu YX, Lyu HH, Wang YY, Chen JY, Yang SM. [Effects of biochar addition on enzyme activity and fertility in paddy soil after six years]. Ying Yong Sheng Tai Xue Bao 2019; 30:1110-1118. [PMID: 30994270 DOI: 10.13287/j.1001-9332.201904.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
A field experiment was conducted to examine the effects on soil fertility and enzyme activities in paddy field after six years of one-split rice straw-derived biochar [0 (BC0), 7.5(BC1), 15(BC2), 22.5(BC3) t·hm-2] and rice straw (3.75 t·hm-2, STR) application. The results showed that soil organic carbon, available phosphorus and rapidly available potassium concentrations significantly increased, by 34.6%, 12.4% and 26.2%, respectively. Soil pH and soil bulk density were significantly reduced, but total nitrogen content had no significant difference compared with BC0. Biochar addition significantly increased the activities of soil urease and acid phosphatase. The soil fluorescein diacetate (FDA hydrolase) and arylsulfatase activity were inhibited to varying degrees. Among them, BC2 treatment increased soil urease activity by 36.5%. The soil acid phosphatase activity increased with the increases of biochar application rate, which was positively correlated with soil available phosphorus concentration. FDA hydrolase and urease activity had positive correlation with soil available potassium content, while soil acid phosphatase and arylsulfatase activity had positive correlation with soil bulk density. After six years, soil dehydrogenase and polyphenol oxidase activity significantly increased by 48.8% and 27.5%, respectively, while catalase activity significantly decreased when compared with control BC0. STR treatment increased activities of soil urease, FDA hydrolase, dehydrogenase, acid phosphatase and arylsulfatase significantly, while decreased the catalase and polyphenol oxidase activities by 23.4% and 15.9%, respectively.
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Affiliation(s)
- Yun Xiang Xu
- College of Environmental Sciences, Zhejiang University of Technology, Hangzhou 310014, China.,Institute of Environmental Resources and Soil Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Li Li He
- Institute of Environmental Resources and Soil Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.,Zhejiang Engineering Research Center of Biochar, Hangzhou 310021, China
| | - Yu Xue Liu
- Institute of Environmental Resources and Soil Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.,Zhejiang Engineering Research Center of Biochar, Hangzhou 310021, China
| | - Hao Hao Lyu
- Institute of Environmental Resources and Soil Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.,Zhejiang Engineering Research Center of Biochar, Hangzhou 310021, China
| | - Yu Ying Wang
- Institute of Environmental Resources and Soil Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.,Zhejiang Engineering Research Center of Biochar, Hangzhou 310021, China
| | - Jin Yuan Chen
- College of Environmental Sciences, Zhejiang University of Technology, Hangzhou 310014, China
| | - Sheng Mao Yang
- College of Environmental Sciences, Zhejiang University of Technology, Hangzhou 310014, China.,Institute of Environmental Resources and Soil Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.,Zhejiang Engineering Research Center of Biochar, Hangzhou 310021, China
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Cao MZ, Yang YH, Chen ZT, Zhao P, He LL. [An analysis of influencing factors for brucellosis in major occupational groups in Bayannur, China]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 35:440-443. [PMID: 28780821 DOI: 10.3760/cma.j.issn.1001-9391.2017.06.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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 investigate the current status of brucella infection in major occupational groups in Bayannur, China, and to analyze the risk factors for brucellosis. Methods: From January to March, 2015, a questionnaire survey and the serological testing were performed to investigate the current status of brucella infection in 649 workers in 13 slaughter and breeding plants in 7 counties in Bayannur, China. The items in the questionnaire survey included general information, related occupational information, living habits, medical history, and awareness of related knowledge. Results: A total of 112 workers (17.26%) had brucella infection. Brucella infection was associated with sex, age, years of exposure to hazardous substances, job, educational background, usage of protective equipment, the presence or absence of a wound at the exposure site, and whether to smoke during the work clearance (P<0.05) . The multivariate analysis showed that the risk factors for brucellosis were meat processing work (OR=1.812) , >5 years of exposure to hazardous substances (OR=1.363) , improper use or nonuse of protective equipment (OR=1.957) , smoke during work (OR=2.027) , and the presence of a woundat the exposure site (OR= 1.231) ; the protective factors for brucellosis were high school and college education and above (OR=0.521) and high rate of awareness of brucella-related knowledge (OR=0.648) . Conclusion: The brucella infection rate is high in the major occupational groups in Bayannur, China. The main influencing factors for brucellosis are job, years of exposure to hazardous substances, usage of protective equipment, whether to smoke during work, and the presence or absence of a wound at the exposure site.
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Affiliation(s)
- M Z Cao
- Bayannaoer Center for Disease Control and Prevention, Bayannaoer 015000, China
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Wang YZ, Lu J, Hao L, Chang Y, He LL, Huang XJ, Liu YR. [Comparison and analysis of minimal residual disease in multiple myeloma patients detected by 4-color and 8-color fluorescence antibody panels]. Zhonghua Xue Ye Xue Za Zhi 2018; 38:272-278. [PMID: 28468086 PMCID: PMC7342730 DOI: 10.3760/cma.j.issn.0253-2727.2017.04.003] [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] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
目的 探讨与比较4色和8色荧光抗体组合检测多发性骨髓瘤(MM)患者治疗后微小残留病(MRD)的灵敏度。 方法 建立一组以CD38/CD138对浆细胞进行设门,同时检测胞膜抗原CD45、CD19、CD56、CD117及胞质轻链cKappa、cLambda的8色抗体组合;6组4色抗体组合中,4组以CD38/CD138设门,分别分析CD45/CD19、CD56/CD117、CD19/CD56胞膜抗原(M1-3)和胞质轻链(C组)表达;MC1-2组分别以CD38/SSC和CD138/SSC设门,同时检测CD19或CD45胞膜抗原和胞质轻链。采用以上组合对20名健康志愿者和73例完全缓解后MM患者标本进行检测并进行比较分析。 结果 8色组合识别异常浆细胞(aPCs)和克隆性浆细胞(cPCs)的阳性率均为82.19%,一致率为89.04%(65/73);cPCs中位比例为0.105%,均显示明显的单克隆轻链;敏感度为0.004%。CD38/SSC设门的浆细胞比例明显高于CD38/CD138(P<0.001)和CD138/SSC(P=0.001)设门。4色组合中C-胞质组MRD阳性率最低,仅为65.75%,明显低于8色组合的82.19%(P=0.024);M2-56/117组检测的aPCs比例最低,为0.095%,与其他组相比差异有统计学意义(P=0.014);MC1-CD38和MC2-CD138组,以cPCs作为判断标准时MRD阳性率均高于以aPCs为判断标准(P<0.05),结果一致率分别为68.49%(50/73)和79.45%(58/73)。与8色组合相比,4色组合中MC2-CD138组敏感性、准确性和阴性预测值最高,阳性预测值和特异性也较高;其次是M1-45/19组。 结论 CD38/CD138设门更准确,反映克隆性的胞质轻链检测较胞膜抗原更敏感,胞膜抗原异常表达并不完全代表为cPCs,建议胞膜抗原和胞质轻链同时检测。有条件者建议选用8色组合,4色组合中建议同时采用M1-45/19和MC2-CD138组合。
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Affiliation(s)
- Y Z Wang
- Peking University Institute of Hematology, People's Hospital of Peking University, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
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15
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Wang M, Wang WR, Li MW, Chang XF, He LL. [Clinical trial of simplified drilling method for dental implant site preparation]. Zhonghua Kou Qiang Yi Xue Za Zhi 2018; 53:404-407. [PMID: 29886635 DOI: 10.3760/cma.j.issn.1002-0098.2018.06.008] [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 investigate the clinical effect of simplified drilling method and conventional drilling method in implants. Methods: A total of 46 patients (62 implants) were enrolled in this study that with dentition defect from May 2015 to May 2016 in the Implant department of Xi'an Jiao Tong University. The experimental group and the control group were randomly assigned according to the random number method, 23 cases in each group. The experimental group used the simplified drilling method (guided drill+ final drill), the control group using the conventional drilling method (step by step drill). The operation time, implant stability, marginal bone resorption rate and implant retention rate were compared between the two drilling methods. Results: The retention of the experiment group was 97% (31/32), the the control group was 100% (30/30). The operative time in the experiment group [(4.9±0.5) min] was significantly lower from the control group [(8.9±2.0) min] (P=0.000). There was no significant difference between the two methods in bone resorption (P=0.197), implant stability (P>0.05) and implant survival rate (P=0.492). Conclusions: The simplified drilling method can significantly reduce the operation time without compromising the clinical outcomes, and the osseointegration is well. The simplified drilling method should be used when sufficient bone mass, careful use in class II bone, forbidden in class I bone.
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Affiliation(s)
- M Wang
- Department of Implant Dentistry, College of Stomatology, Xi'an Jiaotong University & Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases & Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Xi'an 710004, China
| | - W R Wang
- Department of Implant Dentistry, College of Stomatology, Xi'an Jiaotong University & Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases & Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Xi'an 710004, China
| | - M W Li
- Department of Implant Dentistry, College of Stomatology, Xi'an Jiaotong University & Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases & Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Xi'an 710004, China(Present address: Department of Stomatology, People's Hospital of Zhengzhou, Zhengzhou 450003, China)
| | - X F Chang
- Department of Implant Dentistry, College of Stomatology, Xi'an Jiaotong University & Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases & Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Xi'an 710004, China
| | - L L He
- Department of Implant Dentistry, College of Stomatology, Xi'an Jiaotong University & Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases & Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Xi'an 710004, China
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16
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Chen Y, Liu YX, Chen CJ, Lyu HH, Wa YY, He LL, Yang SM. [Priming effect of biochar on the minerialization of native soil organic carbon and the mechanisms: A review.]. Ying Yong Sheng Tai Xue Bao 2018; 29:314-320. [PMID: 29692042 DOI: 10.13287/j.1001-9332.201801.024] [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: 11/04/2022]
Abstract
In recent years, studies on carbon sequestration of biochar in soil has been in spotlight owing to the specific characteristics of biochar such as strong carbon stability and well developed pore structure. However, whether biochar will ultimately increase soil carbon storage or promote soil carbon emissions when applied into the soil? This question remains controversial in current academic circles. Further research is required on priming effect of biochar on mineralization of native soil organic carbon and its mechanisms. Based on the analysis of biochar characteristics, such as its carbon composition and stability, pore structure and surface morphology, research progress on the priming effect of biochar on the decomposition of native soil organic carbon was reviewed in this paper. Furthermore, possible mechanisms of both positive and negative priming effect, that is promoting and suppressing the mineralization, were put forward. Positive priming effect is mainly due to the promotion of soil microbial activity caused by biochar, the preferential mineralization of easily decomposed components in biochar, and the co-metabolism of soil microbes. While negative priming effect is mainly based on the encapsulation and adsorption protection of soil organic matter due to the internal pore structure and the external surface of biochar. Other potential reasons for negative priming effect can be the stabilization resulted from the formation of organic-inorganic complex promoted by biochar in the soil, and the inhibition of activity of soil microbes and its enzymes by biochar. Finally, future research directions were proposed in order to provide theoretical basis for the application of biochar in soil carbon sequestration.
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Affiliation(s)
- Ying Chen
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, Zhejiang, China.,Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Yu Xue Liu
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, Zhejiang, China.,Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Chong Jun Chen
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, Jiangsu, China
| | - Hao Hao Lyu
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, Zhejiang, China.,Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Yu Ying Wa
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, Zhejiang, China.,Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Li Li He
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, Zhejiang, China.,Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Sheng Mao Yang
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, Zhejiang, China.,Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.,Engineering Research Center of Biochar of Zhejiang Province, Hangzhou 310021, China
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17
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He LL, Wu HY, Tang YZ. [Extrarenal Wilms' tumor: report of a case]. Zhonghua Bing Li Xue Za Zhi 2017; 46:423-424. [PMID: 28591995 DOI: 10.3760/cma.j.issn.0529-5807.2017.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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Cui L, Sun MM, Zhao ZH, Yang JP, Zheng YP, He LL, Chen KS, Fan QX. BLCA-4 and UBC combined detection for early diagnosis of bladder cancer. J BIOL REG HOMEOS AG 2016; 30:485-490. [PMID: 27358136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The objective of the present study was to report the clinical significance of bladder cancer specific nuclear matrix protein 4 (BLCA-4) and urinary bladder cancer (UBC) on early diagnosis of bladder cancers. Enzyme-linked immunosorbent assay (ELISA) was used to detect BLCA-4 and UBC of 56 bladder cancer patients and 26 patients with urinary tract benign diseases, serving as controls. Urine exfoliated cell test was performed, and then the significance of BLCA-4 and UBC on the diagnosis of bladder cancers was analyzed. The sensitivity of BLCA-4 and UBC of the bladder cancer patients was significantly higher than that of the urine exfoliated cell test (P less than 0.05). The difference of BLCA-4 and UBC was not significant (P >0.05). The difference of BLCA-4 and UBC in the tumors with different gradings and stagings was not significant (P >0.05). Combined detection of BLCA-4 and UBC could improve the diagnosis sensitivity and specificity of bladder cancers with the advantages of high maneuverability, repeatability and objective results.
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Affiliation(s)
- L Cui
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou city, PR China
| | - M M Sun
- Department of Pathology, Henan Cancer Hospital, Zhengzhou city, PR China
| | - Z H Zhao
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou city, PR China
| | - J P Yang
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou city, PR China
| | - Y P Zheng
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou city, PR China
| | - L L He
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou city, PR China
| | - K S Chen
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou city, PR China
| | - Q X Fan
- Medical oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou City, PR China
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Zheng XQ, Guo JP, Yang H, Kanai M, He LL, Li YY, Koomen JM, Minton S, Gao M, Ren XB, Coppola D, Cheng JQ. Aurora-A is a determinant of tamoxifen sensitivity through phosphorylation of ERα in breast cancer. Oncogene 2014; 33:4985-96. [PMID: 24166501 PMCID: PMC4002670 DOI: 10.1038/onc.2013.444] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [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: 05/31/2013] [Revised: 08/20/2013] [Accepted: 09/09/2013] [Indexed: 12/14/2022]
Abstract
Despite the clinical success of tamoxifen, its resistance remains a major challenge in breast cancer. Here we show that Aurora-A determines tamoxifen sensitivity by regulation of oestrogen receptor (ER)α. Ectopic expression of Aurora-A decreases and depletion of Aurora-A enhances tamoxifen sensitivity in ERα-positive breast cancer. Elevated Aurora-A was significantly associated with the recurrence of ERα-positive tumours. Notably, Aurora-A inhibitor MLN8237, which is currently in clinical trial, synergizes with tamoxifen and overcomes tamoxifen resistance. Furthermore, Aurora-A interacts with and phosphorylates ERα on serine-167 and -305, leading to increase in ERα DNA-binding and transcriptional activity. Elevated levels of Aurora-A are significantly associated with disease-free survival in ERα-positive but not ERα-negative breast cancers. These data suggest that Aurora-A has a pivotal role in tamoxifen resistance and ERα is a bona fide substrate of Aurora-A. Thus, Aurora-A represents a prognostic marker in ERα-positive tumour and a critical therapeutic target in tamoxifen-resistant breast cancer, and Aurora-A inhibitor could be used as either an independent or concurrent agent in tamoxifen-resistant tumour.
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Affiliation(s)
- XQ Zheng
- Departments of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612
- Department of Thyroid and Neck Tumour, Tianjin Medical University Cancer Institute and Hospital, Oncology Key Laboratory of cancer prevention and therapy, National Clinical Research Center of Cancer, Tianjin, P. R. China, 300060
- Department of Immunology, Tianjin Medical University Cancer Institute and Hospital, Oncology Key Laboratory of cancer prevention and therapy, National Clinical Research Center of Cancer, Tianjin, P. R. China, 300060
| | - JP Guo
- Departments of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612
| | - H Yang
- Departments of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612
| | - M Kanai
- Departments of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612
| | - LL He
- Departments of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612
| | - YY Li
- Departments of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612
| | - JM. Koomen
- Departments of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612
| | - S. Minton
- Department of Women’s Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612
| | - M Gao
- Department of Thyroid and Neck Tumour, Tianjin Medical University Cancer Institute and Hospital, Oncology Key Laboratory of cancer prevention and therapy, National Clinical Research Center of Cancer, Tianjin, P. R. China, 300060
| | - XB Ren
- Department of Immunology, Tianjin Medical University Cancer Institute and Hospital, Oncology Key Laboratory of cancer prevention and therapy, National Clinical Research Center of Cancer, Tianjin, P. R. China, 300060
| | - D Coppola
- Department of Pathology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612
| | - JQ Cheng
- Departments of Molecular Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612
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Li XJ, He LL, Li YS, Yang Q, Hirose A. Direct coating adherent diamond films on Fe-based alloy substrate: the roles of Al, Cr in enhancing interfacial adhesion and promoting diamond growth. ACS Appl Mater Interfaces 2013; 5:7370-7378. [PMID: 23829602 DOI: 10.1021/am401709j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Direct CVD deposition of dense, continuous, and adherent diamond films on conventional Fe-based alloys has long been considered impossible. The current study demonstrates that such a deposition can be realized on Al, Cr-modified Fe-based alloy substrate (FeAl or FeCrAl). To clarify the fundamental mechanism of Al, Cr in promoting diamond growth and enhancing interfacial adhesion, fine structure and chemical analysis around the diamond film-substrate interface have been comprehensively characterized by transmission electron microscopy. An intermediate graphite layer forms on those Al-free substrates such as pure Fe and FeCr, which significantly deteriorates the interfacial adhesion of diamond. In contrast, such a graphite layer is absent on the FeAl and FeCrAl substrates, whereas a very thin Al-rich amorphous oxide sublayer is always identified between the diamond film and substrate interface. These comparative results indicate that the Al-rich interfacial oxide layer acts as an effective barrier to prevent the formation of graphite phase and consequently enhance diamond growth and adhesion. The adhesion of diamond film formed on FeCrAl is especially superior to that formed on FeAl substrate. This can be further attributed to a synergetic effect including the reduced fraction of Al and the decreased substrate thermal-expansion coefficient on FeCrAl in comparison with FeAl, and a mechanical interlocking effect due to the formation of interfacial chromium carbides. Accordingly, a mechanism model is proposed to account for the different interfacial adhesion of diamond grown on the various Fe-based substrates.
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Affiliation(s)
- X J Li
- Shenyang National Lab of Materials Science, Institute of Metal Research, University of Chinese Academy of Sciences, Shenyang 110016, China
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Wang JC, He LL, Chen Q. Comparison of re-treatment outcomes of lamivudine plus adefovir or entecavir in chronic hepatitis B patients with viral relapse after cessation of adefovir. Eur Rev Med Pharmacol Sci 2013; 17:1162-1166. [PMID: 23690184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
BACKGROUND Either combination treatment or monotherapy using agents with a high genetic barrier are recommended for the retreatment of chronic hepatitis B (CHB) patients. In search of reasonable treatment, we compared the efficacy and safety of lamivudine (LAM) plus adefovir (ADV) and entecavir (ETV) alone for retreatment of patients with viral relapse after cessation of ADV. PATIENTS AND METHODS This is a prospective controlled study, and CHB patients with HBV DNA levels more than 4 log copies/mL were enrolled. All patients were treated with either LAM plus ADV (n=30) or ETV (n=25) for 48 weeks. RESULTS After 12-months treatment, the biochemical response (BR) rates were 96.7% and 84.0%, the virological response (VR) rates were 96.7% and 68% in the LAM plus ADV and ETV groups respectively. Between two groups, the difference in BR was not significant, but in VR was statistically significant (p = 0.097 for BR, and p = 0.003 for VR). Eleven patients receiving LAM plus ADV had HBeAg seroconversion, as compared with 1 in patients receiving ETV alone (36.7% versus 4%, p = 0.003). During 12-months retreatment, 1 patients receiving ETV alone had virological breakthrough and detected ETV-resistance strains, while no LAM- or ADV-associated resistance strains were detected in patients receiving LAM plus ADV. All patients receiving LAM plus ADV were well tolerated, and no serious side effects were reported. CONCLUSIONS LAM plus ADV combination therapy is effective in retreatment of CHB patients with viral relapse after cessation of ADV, but further studies are needed to obtain long term results.
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Affiliation(s)
- J C Wang
- Infectious Disease Department, No.416 Hospital of Nuclear Industry Ministry, Chengdu, China
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Ding BJ, Ma WW, He LL, Zhou X, Yuan LH, Yu HL, Feng JF, Xiao R. Soybean isoflavone alleviates β-amyloid 1-42 induced inflammatory response to improve learning and memory ability by down regulation of Toll-like receptor 4 expression and nuclear factor-κB activity in rats. Int J Dev Neurosci 2011; 29:537-42. [PMID: 21515354 DOI: 10.1016/j.ijdevneu.2011.04.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Revised: 04/07/2011] [Accepted: 04/07/2011] [Indexed: 02/06/2023] Open
Abstract
β-amyloid 1-42 (Aβ1-42)-induced learning and memory impairment in rats is believed to be associated with inflammation. Cytokine production is a key pathologic event in the progression of inflammatory processes. In this rat study, soybean isoflavones (SIF) was used to investigate it's protective effects on inflammation caused by β-amyloid 1-42 (Aβ1-42), which is associated with learning and memory impairment in Alzheimer disease. We characterized the learning and memory ability. cytokine profiles of circulating interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α) in the serum and the expression of Toll like receptor4 (TLR4) and nuclear factor-κB p65 (NF-κB p65) mRNA and protein in the brain tissue following intracerebroventricular administration of Aβ1-42 by miniosmotic pump for 14 days. The results showed that functional deficits of learning and memory in SIF treatment groups were significantly improved compared to the control group without SIF treatment in water maze test. The serum IL-1β and TNF-α level were significantly increased, and the expressions of TLR4 and NF-κB p65 mRNA and protein in the brain were up-regulated, indicating inflammation response was initiated following administration of Aβ1-42. After intragastric pre-treatment with SIF, inflammatory cytokines was significantly reduced and also SIF reversed the Aβ1-42 induced up-regulation of TLR4 and NF-κB p65 mRNA and protein expression in the brain and expression of NF-κB p65 in nuclei. These results suggested that SIF reduced the cytokine cascade and inflammatory response induced by Aβ1-42 which could result in the improvement of spatial learning and memory ability impairment in the rats.
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Affiliation(s)
- B J Ding
- Department of Nutrition & Food Hygiene, School of Public Health and Family Medicine, Capital Medical University, No. 10 Xitoutiao, You An Men Wai, Beijing 100069, PR China
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Li LL, Zhang ZR, Gong T, He LL, Deng L. Simultaneous determination of Gastrodin and Ligustrazine hydrochloride in dog plasma by gradient high-performance liquid chromatography. J Pharm Biomed Anal 2006; 41:1083-7. [PMID: 16574365 DOI: 10.1016/j.jpba.2006.02.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2005] [Revised: 02/14/2006] [Accepted: 02/14/2006] [Indexed: 11/24/2022]
Abstract
A novel reversed-phase HPLC method was developed for the simultaneous determination of Gastrodin (Gas) and Ligustrazine hydrochloride (LZH) in dog plasma after oral administration of the preparation 'Tianxiong Capsule'. The assay involves deproteinization, extraction and subsequent detection with a gradient solvent system at two different wavelengths. Retention times were 10.6 and 18.9 min for Gas and LZH, respectively. Linear responses were observed over a wide range (0.40-200.0 microg/ml for Gas and 0.0999-39.96 microg/ml for LZH) in plasma. The mean intra- and inter-assay variation coefficients were 2.7 and 3.4% for Gas and 3.4 and 4.2% for LZH, respectively. The average extract recoveries were 76.77% for Gas and 75.8% for LZH. This assay has been successfully used to provide pharmacokinetic data for Gastrodin with oral administration of Tianxiong capsules.
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Affiliation(s)
- L L Li
- Renmin Nan Road, West China School of Pharmacy, Sichuan University, 610041, PR China
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Deng YF, He LL, Zhang QS, Zhang HF, Ye HQ. HRTEM analysis of nanocrystallization during uniaxial compression of a bulk metallic glass at room temperature. Ultramicroscopy 2004; 98:201-8. [PMID: 15046800 DOI: 10.1016/j.ultramic.2003.08.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2003] [Revised: 06/03/2003] [Indexed: 10/27/2022]
Abstract
Nanocrystallization during deformation of metallic glass at room temperature has significant implications to understand its deformation mechanism. We present here direct high-resolution transmission electron microscopy (HRTEM) observations of nanocrystallization in a Zr(55)AI(10)Ni(5)Cu(30) bulk metallic glass (BMG) fractured by uniaxial compression at room temperature. The formed nanocrystallites are Zr(2)Cu, with the average diameter of less than 10nm, and are distributed within the round-like regions of localized plastic deformation. We also show direct evidence of atomic neighbor distance increases associated with the shrinkage and broadening of diffused ring pattern from local deformed areas, which may enhance atomic mobility so that nanocrystallization occurred. Our results demonstrate that the origin of the room-temperature deformation of BMG can be attributed to the local atomic spacing increases induced by localization of plastic flow under uniaxial compression test.
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Affiliation(s)
- Y F Deng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
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Zhan Q, Yu R, He LL, Li DX, Li J, Xu SY, Ong CK. Reversible structural transition in epitaxial manganite film. Phys Rev Lett 2002; 88:196104. [PMID: 12005649 DOI: 10.1103/physrevlett.88.196104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2001] [Indexed: 05/23/2023]
Abstract
A reversible structural transition of an epitaxial La(2/3)Sr(1/3)MnO3 film deposited on a LaAlO3 substrate has been investigated by means of in situ high-resolution transmission electron microscopy and electron diffraction, combined with image and diffraction calculations. We observe that the crystallographic symmetry of the film can be lowered via electron beam irradiation, leading to a rhombohedral-monoclinic transition. This transition can be attributed to the cooperating effect of the mismatch stress and the irradiation-induced thermal stress.
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Affiliation(s)
- Q Zhan
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
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Abstract
Structural evolution during the phase transition from h (hexagonal)- to c (cubic)-boron nitrides (BN) under high pressure (6.5-7.7 GPa) at high temperature (1,700-2,150 degrees C) was examined by using high-resolution transmission electron microscopy (HRTEM) and electron energy loss spectroscopy (EELS). At the initial stage of the evolution, some starting h-BN plates were strongly folded, while others were slightly bent. As a result, a strong texture was formed. HRTEM revealed that the interplanar distance between sp2 sheets became slightly shortened and they were slightly sheared to each other during the folding and bending. As a result, m (monoclinic)-BN was formed near the folding plane with lattice parameters; a = 0.433 nm, b = 0.250 nm, c = 0.32-0.33 nm, and beta = 90-92 degrees. In a succeeding stage, the value of beta increased to 92-95 degrees. c-BN grains appeared with nano-scale twins and sometimes partly included wurtzite-type BN. They started to grow with secondary twins at higher temperature. EELS analysis revealed that the band structure of sp2 sheets changed during the transition from h-BN to m-BN; the density of state for the pi* bond became prominently high in m-BN as compared to that in h-BN.
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Affiliation(s)
- L L He
- National Institute for Research in Inorganic Materials, Tuskuba, Ibaraki, Japan
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