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Hu Q, Xu Y, Xiao T, Peng R, Li Z, Xu G, Yu B, Li J, Li ZY, Hou H, Lin Y, Cao J, Liu N, Zha ZG, Gui T, Zhang HT, Cai Y. Trim21 Regulates the Postnatal Development and Thermogenesis of Brown Adipose Tissue. Adv Biol (Weinh) 2024; 8:e2300510. [PMID: 38085135 DOI: 10.1002/adbi.202300510] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/08/2023] [Indexed: 03/16/2024]
Abstract
Brown adipose tissue undergoes rapid postnatal development to mature and plays a crucial role in thermoregulation and energy expenditure, which protects against cold and obesity. Herein, it is shown that the expression of Trim21 mRNA level of interscapular brown adipose tissue elevates after birth, and peaks at P14 (postnatal day 14). Trim21 depletion severely impairs the maturation of interscapular brown adipose tissue, decreases the expression of a series of thermogenic genes, and reduces energy expenditure. Consistently, the loss of Trim21 also leads to a suppression of white adipose tissue "browning", in response to cold exposure and a β-adrenergic agonist, CL316,243. In addition, Trim21-/- mice are more prone to high-fat diet-induced obesity compared with the control littermates. Taken together, the study for the first time reveals a critical role of Trim21 in regulating iBAT postnatal development and thermogenesis.
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Affiliation(s)
- Qinxiao Hu
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education of Jinan University, Guangzhou, Guangdong, 510630, China
| | - Yidi Xu
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education of Jinan University, Guangzhou, Guangdong, 510630, China
| | - Teng Xiao
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education of Jinan University, Guangzhou, Guangdong, 510630, China
| | - Rui Peng
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education of Jinan University, Guangzhou, Guangdong, 510630, China
| | - Zhenwei Li
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education of Jinan University, Guangzhou, Guangdong, 510630, China
- Department of Orthopedics, the Second Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, 233002, China
| | - Guisheng Xu
- Department of Joint and Sports Medicine, The First People's Hospital of Zhaoqing, Zhaoqing, Guangdong, 526000, China
| | - Bo Yu
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education of Jinan University, Guangzhou, Guangdong, 510630, China
| | - Jianping Li
- The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Zhen-Yan Li
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education of Jinan University, Guangzhou, Guangdong, 510630, China
| | - Huige Hou
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education of Jinan University, Guangzhou, Guangdong, 510630, China
| | - Yuning Lin
- Department of Joint and Sports Medicine, The First People's Hospital of Zhaoqing, Zhaoqing, Guangdong, 526000, China
| | - Jiahui Cao
- The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, 510006, China
| | - Ning Liu
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education of Jinan University, Guangzhou, Guangdong, 510630, China
| | - Zhen-Gang Zha
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education of Jinan University, Guangzhou, Guangdong, 510630, China
| | - Tao Gui
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education of Jinan University, Guangzhou, Guangdong, 510630, China
| | - Huan-Tian Zhang
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education of Jinan University, Guangzhou, Guangdong, 510630, China
| | - Yuebo Cai
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Key Laboratory of Regenerative Medicine of Ministry of Education of Jinan University, Guangzhou, Guangdong, 510630, China
- Department of Orthopedics, the Affiliated Shunde Hospital of Jinan University, Shunde, Guangdong, 528300, China
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Khalifa A, Xiao T, Abegaze B, Weisenberger T, Charruyer A, Sanad S, AbuElnasr T, Kashem SW, Fassett M, Ghadially R. Neuropeptide substance P alters stem cell fate to aid wound healing and promote epidermal stratification through asymmetric stem cell divisions. Stem Cells 2024:sxae009. [PMID: 38301639 DOI: 10.1093/stmcls/sxae009] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Indexed: 02/03/2024]
Abstract
Loss of sensory innervation delays wound healing and administration of the neuropeptide substance P improves re-epithelialization. Keratinocyte hyperproliferation post-wounding may result from symmetric stem cell (SC) self-renewal, asymmetric SC self-renewal, committed progenitor divisions, or a combination of these. However, the effects of sensory denervation and of neuropeptides on SC proliferation are not known. Here we show that early after wounding both asymmetric and symmetric SC self-renewal increase, without significant committed progenitor (CP) activation. Decreased sensory innervation is associated with a decrease in both SC and CP proliferation. Based on previous work showing that substance P is decreased in capsaicin-treated mice and improves wound healing in normal skin, we examined the effects of substance P on SC and CP proliferation during wound healing. Substance P restored asymmetric SC proliferation in skin with decreased sensory innervation, both at baseline and following wounding. Epidermis with decreased sensory innervation was severely thinned. Consistent with this, substance P-induced asymmetric SC proliferation resulted in increased stratification in skin with both normal and decreased innervation. Lapatinib prevented the substance P-induced increase in asymmetric SC divisions in murine epidermis, as well as the increase in epidermal stratification, suggesting that asymmetric SC divisions are required for epidermal stratification.
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Affiliation(s)
- A Khalifa
- Zoology Department, Faculty of science, Zagazig university, Egypt
- Department of Dermatology, UCSF, San Francisco CA
- VA Medical Center, San Francisco, CA
| | - T Xiao
- Department of Dermatology, UCSF, San Francisco CA
- VA Medical Center, San Francisco, CA
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, Shaanxi, China
| | - B Abegaze
- Department of Dermatology, UCSF, San Francisco CA
- VA Medical Center, San Francisco, CA
| | - T Weisenberger
- Department of Dermatology, UCSF, San Francisco CA
- VA Medical Center, San Francisco, CA
| | - A Charruyer
- Department of Dermatology, UCSF, San Francisco CA
- VA Medical Center, San Francisco, CA
| | - Samia Sanad
- Zoology Department, Faculty of science, Zagazig university, Egypt
| | - Taher AbuElnasr
- Zoology Department, Faculty of science, Zagazig university, Egypt
| | - S W Kashem
- Department of Dermatology, UCSF, San Francisco CA
| | - M Fassett
- Department of Dermatology, UCSF, San Francisco CA
| | - R Ghadially
- Department of Dermatology, UCSF, San Francisco CA
- VA Medical Center, San Francisco, CA
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Zeng R, Ye Y, Ou H, Hua Y, Su Y, Hu J, Lu H, Tang J, Liu J, Xiao T, Wu Z, Tang W, Li ZY, Lin SJ, Zhuang S, Xu G, Lin Y, Li Y, Huang F, Zhang HT. Early osteoarthritis diagnosis based on near-infrared spectroscopy combined with aquaphotomics. Spectrochim Acta A Mol Biomol Spectrosc 2023; 302:123120. [PMID: 37453381 DOI: 10.1016/j.saa.2023.123120] [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] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 06/09/2023] [Accepted: 07/07/2023] [Indexed: 07/18/2023]
Abstract
Osteoarthritis (OA) is the most common joint disease and the leading cause of disability in elderly individuals. Despite rapid advances in imaging techniques, early OA diagnosis remains a clinical challenge. In the present study, the feasibility of early OA diagnosis was explored via near-infrared spectroscopy (NIRS) combined with aquaphotomics. Synovial fluid samples from 65 cases of OA categorized as mild, moderate, and severe according to theKellgrenandLawrence classification criteria were analyzed via NIRS. The 1st overtone of water (1300-1600 nm) was considered as the research object for an aquaphotomics model, and aquagrams of the mild, moderate, and severe OA cases were generated using 12 water absorption patterns for early OA diagnosis.The aquaphotomics results exhibited clear differences in the region of 1300-1500 nm, and the number of hydrogen bonds of different water species (1412,1424, 1482, and 1496 nm) evidently correlated with OA occurrence and development. With OA progression, the absorption intensity of water molecules without hydrogen bonds (1412 nm/1424 nm) became stronger, while the absorption intensity of water molecules with four hydrogen bonds (1482 nm/1496 nm) decreased.These results together reveal that the established accurate and rapid early OA diagnosis model based on NIRS combined with aquaphotomics is effective and feasible, and that the number of hydrogen bonds can be used as a biomarker for early OA diagnosis.
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Affiliation(s)
- Rui Zeng
- College of Physical Science and Technology, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Yongsheng Ye
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China; Department of Orthopedics, Dongguan Hospital of Traditional Chinese Medicine, Dongguan, Guangdong 523000, China
| | - Haisheng Ou
- College of Physical Science and Technology, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Yisheng Hua
- College of Physical Science and Technology, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Yuancui Su
- College of Physical Science and Technology, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Junhui Hu
- College of Physical Science and Technology, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Hanglin Lu
- College of Physical Science and Technology, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Jian Tang
- College of Physical Science and Technology, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Jun Liu
- College of Physical Science and Technology, Guangxi Normal University, Guilin, Guangxi 541004, China
| | - Teng Xiao
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China
| | - Zhaosheng Wu
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China
| | - Wang Tang
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China
| | - Zhen-Yan Li
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China
| | - Su-Juan Lin
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China
| | - Shabin Zhuang
- Department of Orthopedics, Dongguan Hospital of Traditional Chinese Medicine, Dongguan, Guangdong 523000, China
| | - Guisheng Xu
- Department of Joint and Sports Medicine, the First People's Hospital of Zhaoqing, Zhaoqing, Guangdong 526000, China
| | - Yuning Lin
- Department of Joint and Sports Medicine, the First People's Hospital of Zhaoqing, Zhaoqing, Guangdong 526000, China
| | - Yuanpeng Li
- College of Physical Science and Technology, Guangxi Normal University, Guilin, Guangxi 541004, China.
| | - Furong Huang
- Department of Optoelectronic Engineering, Jinan University, Guangzhou, Guangdong 510632, China.
| | - Huan-Tian Zhang
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510632, China.
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Peng Q, Wu N, Huang Y, Zhao SJ, Tang W, Liang M, Ran YL, Xiao T, Yang L, Liang X. [Diagnostic values of conventional tumor markers and their combination with chest CT for patients with stageⅠA lung cancer]. Zhonghua Zhong Liu Za Zhi 2023; 45:934-941. [PMID: 37968078 DOI: 10.3760/cma.j.cn112152-20220208-00082] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
Objective: To investigate the diagnostic efficiency of conventional serum tumor markers and their combination with chest CT for stage ⅠA lung cancer. Methods: A total of 1 155 patients with stage ⅠA lung cancer and 200 patients with benign lung lesions (confirmed by surgery) treated at the Cancer Hospital, Chinese Academy of Medical Sciences from January 2016 to October 2020 were retrospectively enrolled in this study. Six conventional serum tumor markers [carcinoembryonic antigen (CEA), carbohydrate antigen 125 (CA125), squamous cell carcinoma associated antigen (SCCA), cytokeratin 19 fragment (CYFRA21-1), neuron-specific enolase (NSE), and gastrin-releasing peptide precursor (ProGRP)] and chest thin-slice CT were performed on all patients one month before surgery. Pathology was taken as the gold standard to analyze the difference of positivity rates of tumor markers between the lung cancer group and the benign group, the moderate/poor differentiation group and the well differentiation group, the adenocarcinoma group and the squamous cell carcinoma group, the lepidic and non-lepidic predominant adenocarcinoma groups, the solid nodule group and the subsolid nodule group based on thin-slice CT, and subgroups of ⅠA1 to ⅠA3 lung cancers. The diagnostic performance of tumor markers and tumor markers combined with chest CT was analyzed using the receiver operating characteristic curve. Results: The positivity rates of six serum tumor markers in the lung cancer group and the benign group were 2.32%-20.08% and 0-13.64%, respectively; only the SCCA positivity rate in the lung cancer group was higher than that in the benign group (10.81% and 0, P=0.022). There were no significant differences in the positivity rates of other serum tumor markers between the two groups (all P>0.05). The combined detection of six tumor markers showed that the positivity rate of the lung cancer group was higher than that of the benign group (40.93% and 18.18%, P=0.004), and the positivity rate of the adenocarcinoma group was lower than that of the squamous cell carcinoma group (35.66% and 47.41%, P=0.045). The positivity rates in the poorly differentiated group and moderately differentiated group were higher than that in the well differentiated group (46.48%, 43.75% and 22.73%, P=0.025). The positivity rate in the non-lepidic adenocarcinoma group was higher than that in lepidic adenocarcinoma group (39.51% and 21.74%, P=0.001). The positivity rate of subsolid nodules was lower than that of solid nodules (30.01% vs 58.71%, P=0.038), and the positivity rates of stageⅠA1, ⅠA2 and ⅠA3 lung cancers were 33.33%, 48.96% and 69.23%, respectively, showing an increasing trend (P=0.005). The sensitivity and specificity of the combined detection of six tumor markers in the diagnosis of stage ⅠA lung cancer were 74.00% and 56.30%, respectively, and the area under the curve (AUC) was 0.541. The sensitivity and specificity of the combined detection of six serum tumor markers with CT in the diagnosis of stage ⅠA lung cancer were 83.0% and 78.3%, respectively, and the AUC was 0.721. Conclusions: For stage ⅠA lung cancer, the positivity rates of commonly used clinical tumor markers are generally low. The combined detection of six markers can increase the positivity rate. The positivity rate of markers tends to be higher in poorly differentiated lung cancer, squamous cell carcinoma, or solid nodules. Tumor markers combined with thin-slice CT showed limited improvement in diagnostic efficiency for early lung cancer.
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Affiliation(s)
- Q Peng
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - N Wu
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y Huang
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - S J Zhao
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W Tang
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - M Liang
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y L Ran
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - T Xiao
- State Key Laboratory of Molecular Oncology, Beijing Key Laboratory for Carcinogenesis and Cancer Prevention, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Yang
- Department of Pathology Diagnosis, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X Liang
- Medical Statistics Office, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Xu GS, Lin YN, Zeng Q, Li ZP, Xiao T, Ye YS, Li ZY, Gao X. HSP90-regulated CHIP/TRIM21/p21 Axis Involves in the Senescence of Osteosarcoma Cells. Protein Pept Lett 2023; 30:PPL-EPUB-131922. [PMID: 37211848 DOI: 10.2174/0929866530666230519101148] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 04/08/2023] [Accepted: 04/12/2023] [Indexed: 05/23/2023]
Abstract
AIMS Investigation of the molecular mechanism of tripartite motif 21 (TRIM21) in osteosarcoma (OS) would shed light on the understanding of the pathogenesis of OS. BACKGROUND OS is the most frequent malignant bone tumor with a poor prognosis. TRIM21 has been reported to play a critical role in OS by regulating the expression of the TXNIP/p21 axis and inhibiting the senescence of OS cells. OBJECTIVE This study aimed to explore the mechanism regulating the protein stability of TRIM21 in the process of OS senescence. METHODS Human U2 OS cells were used to establish stable cells overexpressing TRIM21 (induced by Dox) or knocking down TRIM21. The co-immunoprecipitation (co-IP) assay was used to examine the interaction between TRIM21 and HSP90. Immunofluorescence (IF) assay was used to observe colocalization in OS cells. Western blot analysis was applied to detect the protein expression, and quantitative real-time PCR (qRT-PCR) assay was used to test the mRNA expression of corresponding genes. SA-β-gal staining was used to evaluate OS senescence. RESULTS In this study, we verified the interaction between HSP90 and TRIM21 using a co-IP assay. Knockdown or inhibition of HSP90 with its inhibitor 17-AAG accelerated the degradation of TRIM21 by the proteasome in OS cells. CHIP E3 ligase mediated this degradation of TRIM21, with the knockdown of CHIP rescuing the downregulation of TRIM21 induced by 17-AAG. TRIM21 inhibited OS senescence and downregulated the expression of senescence marker p21, while CHIP exhibited an opposite regulatory role on p21 expression. CONCLUSION Taken together, our results demonstrated that HSP90 is responsible for the stabilization of TRIM21 in OS and that the CHIP/TRIM21/p21 axis controlled by HSP90 affects the senescence of OS cells.
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Affiliation(s)
- Gui-Sheng Xu
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Guangzhou 510632, Guangdong, China
- Department of Joint and Sports Medicine, the First People's Hospital of , Zhaoqing 526000, Guangdong, China
| | - Yu-Ning Lin
- Department of Joint and Sports Medicine, the First People's Hospital of Zhaoqing, Zhaoqing 526000, Guangdong, China
| | - Qingzhong Zeng
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, Guangdong, China
| | - Zhi-Peng Li
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Guangzhou 510632, Guangdong, China
| | - Teng Xiao
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Guangzhou 510632, Guangdong, China
| | - Yong-Sheng Ye
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Guangzhou 510632, Guangdong, China
| | - Zhen-Yan Li
- Department of Bone and Joint Surgery, the First Affiliated Hospital of Jinan University, Guangzhou 510632, Guangdong, China
| | - Xuejuan Gao
- MOE Key Laboratory of Tumor Molecular Biology and Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, Institute of Life and Health Engineering, College of Life Science and Technology, Jinan University, Guangzhou 510632, Guangdong, China
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Hua J, Li Z, Ma C, Zhang X, Li Q, Duan X, Xiao T, Geng X. [Erratum to "Risk factors analysis and establishment of predictive nomogram of extranodal B-cell lymphoma of mucosal-associated lymphoid tissue" [Cancer Radiother 27 (2023) 126-135]]. Cancer Radiother 2023; 27:266. [PMID: 37062656 DOI: 10.1016/j.canrad.2023.04.001] [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: 04/18/2023]
Affiliation(s)
- J Hua
- Department of Hematology, Liaocheng People's Hospital, Shan Dong, China
| | - Z Li
- Department of Hematology, Liaocheng People's Hospital, Shan Dong, China
| | - C Ma
- Department of Hematology, Liaocheng People's Hospital, Shan Dong, China
| | - X Zhang
- Department of Hematology, Liaocheng People's Hospital, Shan Dong, China
| | - Q Li
- Department of Hematology, Liaocheng People's Hospital, Shan Dong, China
| | - X Duan
- Department of Hematology, Liaocheng People's Hospital, Shan Dong, China
| | - T Xiao
- Department of Hematology, Liaocheng People's Hospital, Shan Dong, China
| | - X Geng
- Department of Radiotherapy, Liaocheng People's Hospital, 252000 Shan Dong, China.
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Hua J, Lia Z, Ma C, Zhang X, Li Q, Duan X, Xiao T, Geng X. Risk factors analysis and establishment of predictive nomogram of extranodal B-cell lymphoma of mucosal-associated lymphoid tissue. Cancer Radiother 2023; 27:126-135. [PMID: 36894407 DOI: 10.1016/j.canrad.2022.08.006] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/05/2022] [Accepted: 08/09/2022] [Indexed: 03/09/2023]
Abstract
PURPOSE The role of radiation therapy in mucosa-associated lymphoid tissue (MALT) lymphoma is poorly defined. The objective of this study was to explore the factors associated with the performance of radiotherapy and to assess its prognostic impact in patients with MALT lymphoma. PATIENTS AND METHODS Patients with MALT lymphoma diagnosed between 1992 and 2017 were identified in the US Surveillance, Epidemiology, and End Results database (SEER). Factors associated with the delivery of radiotherapy were assessed by chi-square test. Overall survival (OS) and lymphoma-specific survival (LSS) were compared between patients with and without radiotherapy, using Cox proportional hazard regression models, in patients with early stage as well as those with advanced stage. RESULTS Of the 10,344 patients identified with a diagnosis of MALT lymphoma, 33.6% had received radiotherapy; this rate was 38.9% for stage I/II patients and 12.0% for stage III/IV patients, respectively. Older patients and those who already received primary surgery or chemotherapy had a significantly lower rate of receiving radiotherapy, regardless of lymphoma stage. After univariate and multivariate analysis, radiotherapy was associated with improved OS and LSS in patients with stage I/II (HR=0.71 [0.65-0.78]) and (HR=0.66 [0.59-0.74]), respectively, but not in patients with stage III/IV (HR=1.01 [0.80-1.26]) and (HR=0.93 [0.67-1.29]). The nomogram built from the significant prognostic factors associated with overall survival of stage I/II patients had a good concordance (C-index=0.749±0.002). CONCLUSION This cohort study shows that radiotherapy is significantly associated with a better prognosis in patients with early but not advanced MALT lymphoma. Prospective studies are needed to confirm the prognostic impact of radiotherapy in patients with MALT lymphoma.
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Affiliation(s)
- J Hua
- Department of Hematology, Liaocheng People's Hospital, Shan Dong, China
| | - Z Lia
- Department of Hematology, Liaocheng People's Hospital, Shan Dong, China
| | - C Ma
- Department of Hematology, Liaocheng People's Hospital, Shan Dong, China
| | - X Zhang
- Department of Hematology, Liaocheng People's Hospital, Shan Dong, China
| | - Q Li
- Department of Hematology, Liaocheng People's Hospital, Shan Dong, China
| | - X Duan
- Department of Hematology, Liaocheng People's Hospital, Shan Dong, China
| | - T Xiao
- Department of Hematology, Liaocheng People's Hospital, Shan Dong, China
| | - X Geng
- Department of Radiotherapy, Liaocheng People's Hospital, 252000 Shan Dong, China.
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Shan H, Cao H, Xu X, Xiao T, Hou G, Cao H, Tang Y, Zheng G. Investigation of self-discharge properties and a new concept of open-circuit voltage drop rate in lithium-ion batteries. J Solid State Electrochem 2021. [DOI: 10.1007/s10008-021-05049-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Yan QF, Sun ZL, Gao Y, Xiao T, Lin H, Ji M. [Diagnostic value of the combinations of bronchoalveolar lavage fluid pathogen detection and cryptococcal antigen test in pulmonary cryptococcosis]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:711-716. [PMID: 34645137 DOI: 10.3760/cma.j.cn112147-20201123-01113] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the diagnostic value of bronchoalveolar lavage fluid pathogen detection combined with cryptococcal antigen test(CrAg) for pulmonary cryptococcosis(PC). Methods: A retrospective case analysis was performed on non-acquired immunodeficiency syndrome patients admitted to Ninghai First Hospital for suspected PC from January 2018 to December 2019. Fifty-nine patients were included. Sixteen cases (8 males and 8 females) were diagnosed with PC, aged from 18 to 76 years[an average age of (52±14) years], while 43 cases were diagnosed as having Non-PC. All patients had undergone both serum CrAg test and BALF pathogen detection(cultures and direct examination) combined with BALF-CrAg test. The sensitivity and specificity of the combined method of BALF was evaluated, and a parallel comparison of the diagnostic efficiencies of the two methods were made. Results: Of the 16 confirmed PC cases, serum CrAg tests were positive in 11 and negative in 5 cases, while the combined method showed that 14 were positive and 2 were negative. Compared with the clinical final diagnosis, the sensitivity, specificity, positive predictive value and negative predictive value showed that the serum CrAg tests were 68.8% (11/16), 97.7% (42/43), 91.7% (11/12), 89.3% (42/47) respectively, versus 87.5% (14/16), 100.0% (43/43), 100% (14/14), 95.6% (43/45) by the combined method of BALF. The results displayed no statistical difference between the two diagnostic methods (P =1.000). Among the 5 initially serum CrAg-negative cases, 4 were later confirmed as proven PC via the combined method of BALF and the other one by percutaneous lung biopsy. Conclusion: The combined method of BALF pathogen detection with BALF-CrAg showed a similar statistical efficiency rate for diagnosing pulmonary cryptococcosis compared with serum CrAg tests. It may serve as an efficient diagnosis method for PC cases with negative serum CrAg tests.
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Affiliation(s)
- Q F Yan
- Department of Respiratory Medicine, Ninghai First Hospital, Ningbo 315600, China
| | - Z L Sun
- Department of Clinical Laboratory, Ninghai First Hospital, Ningbo 315600, China
| | - Y Gao
- Department of Radiology, Ninghai First Hospital, Ningbo 315600, China
| | - T Xiao
- Department of Respiratory Medicine, Ninghai First Hospital, Ningbo 315600, China
| | - H Lin
- Department of Respiratory Medicine, Ninghai First Hospital, Ningbo 315600, China
| | - M Ji
- Department of Respiratory Medicine, Ninghai First Hospital, Ningbo 315600, China
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10
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Gong L, Wang J, Jiang C, Xiao T, Shen K, Lei M, Tang Y. Study on Magnetic Porous Carbon Microspheres as a Novel Adsorbent for Malachite Green. ChemistrySelect 2021. [DOI: 10.1002/slct.202100129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Liang Gong
- Laboratory and Assets Management Department Zhejiang University of Technology Hangzhou 310014 China
| | - Jie Wang
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou 310014 China
| | - Chenhao Jiang
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou 310014 China
| | - Teng Xiao
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou 310014 China
| | - Kang Shen
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou 310014 China
| | - Ming Lei
- College of Resource and Environment Hunan Agricultural University Changsha 410128 China
| | - Yiping Tang
- College of Materials Science and Engineering Zhejiang University of Technology Hangzhou 310014 China
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11
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Bell AR, Wrathall DJ, Mueller V, Chen J, Oppenheimer M, Hauer M, Adams H, Kulp S, Clark PU, Fussell E, Magliocca N, Xiao T, Gilmore EA, Abel K, Call M, Slangen ABA. Migration towards Bangladesh coastlines projected to increase with sea-level rise through 2100. Environ Res Lett 2021; 16:024045. [PMID: 36034333 PMCID: PMC9415774 DOI: 10.1088/1748-9326/abdc5b] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
To date, projections of human migration induced by sea-level change (SLC) largely suggest large-scale displacement away from vulnerable coastlines. However, results from our model of Bangladesh suggest counterintuitively that people will continue to migrate toward the vulnerable coastline irrespective of the flooding amplified by future SLC under all emissions scenarios until the end of this century. We developed an empirically calibrated agent-based model of household migration decision-making that captures the multi-faceted push, pull and mooring influences on migration at a household scale. We then exposed ~4800 000 simulated migrants to 871 scenarios of projected 21st-century coastal flooding under future emissions pathways. Our model does not predict flooding impacts great enough to drive populations away from coastlines in any of the scenarios. One reason is that while flooding does accelerate a transition from agricultural to non-agricultural income opportunities, livelihood alternatives are most abundant in coastal cities. At the same time, some coastal populations are unable to migrate, as flood losses accumulate and reduce the set of livelihood alternatives (so-called 'trapped' populations). However, even when we increased access to credit, a commonly-proposed policy lever for incentivizing migration in the face of climate risk, we found that the number of immobile agents actually rose. These findings imply that instead of a straightforward relationship between displacement and migration, projections need to consider the multiple constraints on, and preferences for, mobility. Our model demonstrates that decision-makers seeking to affect migration outcomes around SLC would do well to consider individual-level adaptive behaviors and motivations that evolve through time, as well as the potential for unintended behavioral responses.
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Affiliation(s)
- A R Bell
- Department of Earth and Environment, Boston University, Boston, MA 02215, United States of America
- Department of Environmental Studies, New York University, New York, NY 10012, United States of America
| | - D J Wrathall
- College of Earth, Ocean and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331-5503, United States of America
| | - V Mueller
- School of Politics and Global Studies, Arizona State University, Tempe, AZ 85287-3902, United States of America
- International Food Policy Research Institute, Washington, DC 20005, United States of America
| | - J Chen
- Department of Agricultural, Environmental, and Development Economics, The Ohio State University, Columbus, OH 43210, United States of America
| | - M Oppenheimer
- School of Public and International Affairs and Department of Geosciences, Princeton University, Princeton, NJ 08544-1013, United States of America
| | - M Hauer
- Department of Sociology, Florida State University, Tallahassee, FL 32306, United States of America
| | - H Adams
- Department of Geography, King's College London, London WC2R 2LS, United Kingdom
| | - S Kulp
- Climate Central, Princeton, NJ 08542, United States of America
| | - P U Clark
- College of Earth, Ocean and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331-5503, United States of America
- School of Geography and Environmental Sciences, University of Ulster, Coleraine, Northern Ireland BT52 1SA, United Kingdom
| | - E Fussell
- Population Studies and Training Center and the Institute at Brown on Environment and Society, Brown University, Providence, RI 02912, United States of America
| | - N Magliocca
- Department of Geography, University of Alabama, Tuscaloosa, AL 35401, United States of America
| | - T Xiao
- School of Public and International Affairs and Department of Geosciences, Princeton University, Princeton, NJ 08544-1013, United States of America
| | - E A Gilmore
- Department of International Development, Community and Environment, Clark University, Worcester, MA 01610-1477, United States of America
| | - K Abel
- College of Earth, Ocean and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331-5503, United States of America
| | - M Call
- USAID, Washington, DC, United States of America
| | - A B A Slangen
- Department of Estuarine and Delta Systems, NIOZ Royal Netherlands Institute for Sea Research, Yerseke 4401 NT, The Netherlands
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12
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Qu K, Wang X, Xiao T, Shen J, Lin T, Chen D, He LY, Huang XF, Zeng L, Lu K, Ou Y, Zhang Y. Cross-regional transport of PM 2.5 nitrate in the Pearl River Delta, China: Contributions and mechanisms. Sci Total Environ 2021; 753:142439. [PMID: 33207477 DOI: 10.1016/j.scitotenv.2020.142439] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 09/12/2020] [Accepted: 09/13/2020] [Indexed: 06/11/2023]
Abstract
Cross-regional transport potentially contributes to PM2.5 nitrate (pNO3), and this can occur as indirect transport, through which pNO3 precursors are transported to targeted regions, wherein they subsequently react with locally emitted ones to produce pNO3. However, the process has been rarely studied, which limits its comprehensive understanding. We applied the CMAQ model to study the contributions and mechanisms of pNO3 transport during autumn in the Pearl River Delta (PRD), a metropolitan region under the growing influence of cross-regional transport on PM2.5 pollution. Results showed that cross-regional transport contributed to 58% pNO3 monthly in the PRD, and this mostly occurred as indirect transport contributions (accounting for 43% among all contributions). For the first time, we identified the mechanism of indirect pNO3 transport in the PRD, which mainly involves transported O3 and locally emitted NOx reacting to produce pNO3 through N2O5 heterogeneous hydrolysis. pNO3 contributions in different periods and regions indicated differences in the indirect transport contributions to N2O5 heterogeneous hydrolysis under varying O3 availability conditions, which are determined by wind fields and the intensity of NOx emissions. On the regional scale, the pNO3 level is controlled by both transported O3 and local NOx emissions, but pNO3 sensitivity to these two precursors varies among cities. This study demonstrates the notable effect and complex process of cross-regional pNO3 transport in the PRD. Considering the important role of transported O3 for pNO3, O3 reduction within a larger scale is required to achieve PM2.5 pollution control target.
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Affiliation(s)
- Kun Qu
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; International Joint Laboratory for Regional Pollution Control, Ministry of Education, Beijing 100816, China
| | - Xuesong Wang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; International Joint Laboratory for Regional Pollution Control, Ministry of Education, Beijing 100816, China.
| | - Teng Xiao
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; International Joint Laboratory for Regional Pollution Control, Ministry of Education, Beijing 100816, China
| | - Jin Shen
- State Key Laboratory of Regional Air Quality Monitoring, Guangdong Key Laboratory of Secondary Air Pollution Research, Guangdong Environmental Monitoring Center, Guangzhou 510308, China
| | - Tingkun Lin
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; International Joint Laboratory for Regional Pollution Control, Ministry of Education, Beijing 100816, China
| | - Duohong Chen
- State Key Laboratory of Regional Air Quality Monitoring, Guangdong Key Laboratory of Secondary Air Pollution Research, Guangdong Environmental Monitoring Center, Guangzhou 510308, China
| | - Ling-Yan He
- Key Laboratory for Urban Habitat Environmental Science and Technology, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Xiao-Feng Huang
- Key Laboratory for Urban Habitat Environmental Science and Technology, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Limin Zeng
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; International Joint Laboratory for Regional Pollution Control, Ministry of Education, Beijing 100816, China
| | - Keding Lu
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; International Joint Laboratory for Regional Pollution Control, Ministry of Education, Beijing 100816, China
| | - Yubo Ou
- State Key Laboratory of Regional Air Quality Monitoring, Guangdong Key Laboratory of Secondary Air Pollution Research, Guangdong Environmental Monitoring Center, Guangzhou 510308, China
| | - Yuanhang Zhang
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China; International Joint Laboratory for Regional Pollution Control, Ministry of Education, Beijing 100816, China; Beijing Innovation Center for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China; CAS Center for Excellence in Regional Atmospheric Environment, Chinese Academy of Sciences, Xiamen 361021, China.
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13
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Elokil AA, Abouzaid M, Magdy M, Xiao T, Liu H, Xu R, Li S. Testicular transcriptome analysis under the dietary inclusion of l-carnitine reveals potential key genes associated with oxidative defense and the semen quality factor in aging roosters. Domest Anim Endocrinol 2021; 74:106573. [PMID: 33091752 DOI: 10.1016/j.domaniend.2020.106573] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 09/12/2020] [Accepted: 09/16/2020] [Indexed: 11/20/2022]
Abstract
l-carnitine (LC) has been widely studied as a natural antioxidant molecule for treating low-fertility gametes. However, the molecular mechanism of the effect of LC supplementation on the testes of aging cocks has not been evaluated. Therefore, the objective of this study was to reveal the mechanism of testicular oxidative defense induced by LC supplementation in relation to the semen quality factor (SQF) in the aging cock through a transcriptome study conducted from a new perspective. A total of 24 Jinghong cocks at 55 wk of age were randomly divided into 2 groups (n = 12). All cocks were fed a standard isocaloric and isonitrogenic breeder diet (control, LC-0), and the other group was supplemented with LC at 150 mg/kg/d (treated, LC-150) for 12 wk. Remarkably, seminal characteristics and enzymes, sex hormones, and cock fertility related to testicular oxidative defense were considerably improved by LC supplementation. LC-150 testes showed the differential upregulation and downregulation of 97 and 90 transcripts, respectively, compared with LC-0 testes. Most upregulated transcripts were involved in testicular oxidative defense and spermiogenesis optimization, whereas the downregulated genes were responsible for oxidative stress, in contrast to the SQF. Functional analysis of the transcriptionally altered genes indicated the testicular deregulation of long-chain fatty acid and lipid peroxidation, enhancing fatty acid breakdown to release ATP production via β-oxidation. These findings could lay the foundation for the discovery of new molecular markers of SQF-associated LC supplementation and potential targets for therapeutic intervention to optimize fertility in aging cocks.
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Affiliation(s)
- A A Elokil
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China; Animal Production Department, Faculty of Agriculture, Benha University, Moshtohor 13736, Egypt
| | - M Abouzaid
- National Key Lab of Crop Genetics Improvement, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - M Magdy
- Genetics Department, Faculty of Agriculture, Ain Shams University, Shubra 11241, Cairo, Egypt
| | - T Xiao
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - H Liu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - R Xu
- Joint International Research Laboratory of Modern Agricultural Technology, Ministry of Education, Jilin Agricultural University, Changchun 130118, China
| | - S Li
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei 430070, China.
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Yao B, Kuznetsov VL, Xiao T, Jie X, Gonzalez-Cortes S, Dilworth JR, Al-Megren HA, Alshihri SM, Edwards PP. Fuels, power and chemical periodicity. Philos Trans A Math Phys Eng Sci 2020; 378:20190308. [PMID: 32811361 PMCID: PMC7435144 DOI: 10.1098/rsta.2019.0308] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/13/2020] [Indexed: 06/11/2023]
Abstract
The insatiable-and ever-growing-demand of both the developed and the developing countries for power continues to be met largely by the carbonaceous fuels comprising coal, and the hydrocarbons natural gas and liquid petroleum. We review the properties of the chemical elements, overlaid with trends in the periodic table, which can help explain the historical-and present-dominance of hydrocarbons as fuels for power generation. However, the continued use of hydrocarbons as fuel/power sources to meet our economic and social needs is now recognized as a major driver of dangerous global environmental changes, including climate change, acid deposition, urban smog and the release of many toxic materials. This has resulted in an unprecedented interest in and focus on alternative, renewable or sustainable energy sources. A major area of interest to emerge is in hydrogen energy as a sustainable vector for our future energy needs. In that vision, the issue of hydrogen storage is now a key challenge in support of hydrogen-fuelled transportation using fuel cells. The chemistry of hydrogen is itself beautifully diverse through a variety of different types of chemical interactions and bonds forming compounds with most other elements in the periodic table. In terms of their hydrogen storage and production properties, we outline various relationships among hydride compounds and materials of the chemical elements to provide some qualitative and quantitative insights. These encompass thermodynamic and polarizing strength properties to provide such background information. We provide an overview of the fundamental nature of hydrides particularly in relation to the key operating parameters of hydrogen gravimetric storage density and the desorption/operating temperature at which the requisite amount of hydrogen is released for use in the fuel cell. While we await the global transition to a completely renewable and sustainable future, it is also necessary to seek CO2 mitigation technologies applied to the use of fossil fuels. We review recent advances in the strategy of using hydrocarbon fossil fuels themselves as compounds for the high capacity storage and production of hydrogen without any CO2 emissions. Based on these advances, the world may end up with a hydrogen economy completely different from the one it had expected to develop; remarkably, with 'Green hydrogen' being derived directly from the hydrogen-stripping of fossil fuels. This article is part of the theme issue 'Mendeleev and the periodic table'.
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Affiliation(s)
- B. Yao
- KACST-Oxford Centre of Excellence in Petrochemicals, Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - V. L. Kuznetsov
- KACST-Oxford Centre of Excellence in Petrochemicals, Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - T. Xiao
- KACST-Oxford Centre of Excellence in Petrochemicals, Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - X. Jie
- KACST-Oxford Centre of Excellence in Petrochemicals, Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - S. Gonzalez-Cortes
- KACST-Oxford Centre of Excellence in Petrochemicals, Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - J. R. Dilworth
- KACST-Oxford Centre of Excellence in Petrochemicals, Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - H. A. Al-Megren
- Materials Division, King Abdulaziz City for Science and Technology, Riyadh 11442, Kingdom of Saudi Arabia
| | - S. M. Alshihri
- Materials Division, King Abdulaziz City for Science and Technology, Riyadh 11442, Kingdom of Saudi Arabia
| | - P. P. Edwards
- KACST-Oxford Centre of Excellence in Petrochemicals, Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
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15
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Zhang D, Dai A, Fan B, Li Y, Shen K, Xiao T, Hou G, Cao H, Tao X, Tang Y. Three-Dimensional Ordered Macro/Mesoporous Cu/Zn as a Lithiophilic Current Collector for Dendrite-Free Lithium Metal Anode. ACS Appl Mater Interfaces 2020; 12:31542-31551. [PMID: 32551509 DOI: 10.1021/acsami.0c09503] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Li dendrites are considered as the primary cause for degradation and inevitable short circuit in lithium-metal batteries (LMBs). Although contemporary strategies have shown potential for addressing dendrite growth, none have achieved complete elimination. In this paper, a dendrite-free, three-dimensional, ordered, macro/mesoporous Cu/Zn current collector was prepared using a combination of simple colloidal crystal template and electrochemical method (electrodeposition and pulse plating). When paired with a hierarchically structured mesoporous (20-50 nm) and macroporous (450 nm) anode, this novel current collector achieved stable charge/discharge cycles of over 2000 h and a small plating/stripping potential (≈8 mV) at a current density of 0.2 mA cm-2. Coulombic efficiencies (CE) also reached 94.7% after 400 cycles. This three-dimensional, ordered, macro/mesoporous structure provides a greater specific surface area, reduces local current density, and contains a lithiophilic Zn coating that serves as preferred Li nucleation sites. By combining these factors, dendrite-free Li deposition and superior electrochemical performance improvements in LMBs have been realized.
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Affiliation(s)
- Duo Zhang
- College of Material Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Alvin Dai
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Binfeng Fan
- Lingbao Wason Copper Foil Co., Ltd., 131 Huanghe Road, Lingbao, Henan 472500, P. R. China
| | - Yingen Li
- Lingbao Wason Copper Foil Co., Ltd., 131 Huanghe Road, Lingbao, Henan 472500, P. R. China
| | - Kang Shen
- College of Material Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Teng Xiao
- College of Material Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Guangya Hou
- College of Material Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Huazhen Cao
- College of Material Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - XinYong Tao
- College of Material Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yiping Tang
- College of Material Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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Nie GK, Xu C, Wei QK, Li J, Xiao T, Sun H, Kong XL, Yin K, Zhao GH, Zhang BG, Yan G, Huang BC. [Analysis of drug - resistant gene polymorphisms in Plasmodium falciparum imported from Equatorial Guinea to Shandong Province in 2015 and 2016]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:612-617. [PMID: 33325196 DOI: 10.16250/j.32.1374.2020114] [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] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To investigate the drug-resistant gene polymorphisms in Plasmodium falciparum imported from Equatorial Guinea to Shandong Province. METHODS From 2015 to 2016, blood samples were collected from imported P. falciparum malaria patients returning from Equatorial Guinea to Shandong Province, and genome DNA of the malaria parasite was extracted. The drug-resistant Pfcrt, Pfmdr1, Pfdhfr, Pfdhps, and K13 genes of P. falciparum were amplified using a PCR assay, followed by DNA sequencing, and the sequences were aligned. RESULTS The target fragments of all 5 drug-resistant genes of P. falciparum were successfully amplified and sequenced. There were 72.8%, 18.6%, and 8.6% of P. falciparum parasites carrying the wild-, mutant-, and mixed-type Pfcrt gene, respectively, and all mutant haplotypes were CVIET (the underline indicates the mutation site). There were 20.0%, 61.4% and 18.6% of P. falciparum parasites carrying the wild-, mutant-, and mixed-type Pfmdr1 gene, respectively, and the mutant haplotypes mainly included YF and NF (the underlines indicate the mutation sites). There were 1.4%, 98.6%, and 0 of P. falciparum parasites carrying the wild-, mutant-, and mixed-type Pfdhfr gene, respectively, and AIRNI was the predominant mutant haplotype (the underline indicates the mutation site). There were 1.4%, 94.3%, and 4.3% of P. falciparum parasites carrying the wild-, mutant-, and mixed-type Pfdhps gene, respectively, and SGKAA was the predominant mutant haplotype (the underline indicates the mutation site). The complete drug-resistant IRNGE genotype consisted of 8.6% of the Pfdhfr and Pfdhps genes, and the K13 gene A578S mutation occurred in 1.4% of the parasite samples. CONCLUSIONS There are mutations in the Pfcrt, Pfmdr1, Pfdhfr, Pfdhps, and K13 genes of P. falciparum imported from Equatorial Guinea to Shandong Province, with a low frequency in the Pfcrt gene mutation and a high frequency in the Pfmdr1, Pfdhfr, and Pfdhps gene mutations, and the K13 gene A578S mutation is detected in the parasite samples.
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Affiliation(s)
- G K Nie
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
- School of Medicine and Life Sciences, Shandong Academy of Medical Sciences, University of Jinan, China
- Jining Health School, Shandong Province, China
| | - C Xu
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
| | - Q K Wei
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
- School of Medicine and Life Sciences, Shandong Academy of Medical Sciences, University of Jinan, China
| | - J Li
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
| | - T Xiao
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
| | - H Sun
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
- School of Medicine and Life Sciences, Shandong Academy of Medical Sciences, University of Jinan, China
| | - X L Kong
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
| | - K Yin
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
- School of Medicine and Life Sciences, Shandong Academy of Medical Sciences, University of Jinan, China
| | - G H Zhao
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
| | - B G Zhang
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
| | - G Yan
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
| | - B C Huang
- Shandong Institute of Parasitic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jining 272033, China
- School of Medicine and Life Sciences, Shandong Academy of Medical Sciences, University of Jinan, China
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17
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Gou W, Chen T, Xie D, Xiao T, Deng TS, Gadway B, Yi W, Yan B. Tunable Nonreciprocal Quantum Transport through a Dissipative Aharonov-Bohm Ring in Ultracold Atoms. Phys Rev Lett 2020; 124:070402. [PMID: 32142332 DOI: 10.1103/physrevlett.124.070402] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 02/03/2020] [Indexed: 06/10/2023]
Abstract
We report the experimental observation of tunable, nonreciprocal quantum transport of a Bose-Einstein condensate in a momentum lattice. By implementing a dissipative Aharonov-Bohm (AB) ring in momentum space and sending atoms through it, we demonstrate a directional atom flow by measuring the momentum distribution of the condensate at different times. While the dissipative AB ring is characterized by the synthetic magnetic flux through the ring and the laser-induced loss on it, both the propagation direction and transport rate of the atom flow sensitively depend on these highly tunable parameters. We demonstrate that the nonreciprocity originates from the interplay of the synthetic magnetic flux and the laser-induced loss, which simultaneously breaks the inversion and the time-reversal symmetries. Our results open up the avenue for investigating nonreciprocal dynamics in cold atoms, and highlight the dissipative AB ring as a flexible building element for applications in quantum simulation and quantum information.
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Affiliation(s)
- Wei Gou
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation, and Zhejiang Province Key Laboratory of Quantum Technology and Device of Physics Department, Zhejiang University, Hangzhou 310027, China
| | - Tao Chen
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation, and Zhejiang Province Key Laboratory of Quantum Technology and Device of Physics Department, Zhejiang University, Hangzhou 310027, China
| | - Dizhou Xie
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation, and Zhejiang Province Key Laboratory of Quantum Technology and Device of Physics Department, Zhejiang University, Hangzhou 310027, China
| | - Teng Xiao
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation, and Zhejiang Province Key Laboratory of Quantum Technology and Device of Physics Department, Zhejiang University, Hangzhou 310027, China
| | - Tian-Shu Deng
- Institute for Advanced Study, Tsinghua University, Beijing, 100084, China
| | - Bryce Gadway
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801-3080, USA
| | - Wei Yi
- CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China
- CAS Center For Excellence in Quantum Information and Quantum Physics, Hefei 230026, China
| | - Bo Yan
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation, and Zhejiang Province Key Laboratory of Quantum Technology and Device of Physics Department, Zhejiang University, Hangzhou 310027, China
- Collaborative Innovation Centre of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
- Key Laboratory of Quantum Optics, Chinese Academy of Sciences, Shanghai, 200800, China
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Xie D, Deng TS, Xiao T, Gou W, Chen T, Yi W, Yan B. Topological Quantum Walks in Momentum Space with a Bose-Einstein Condensate. Phys Rev Lett 2020; 124:050502. [PMID: 32083915 DOI: 10.1103/physrevlett.124.050502] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 01/15/2020] [Indexed: 05/22/2023]
Abstract
We report the experimental implementation of discrete-time topological quantum walks of a Bose-Einstein condensate in momentum space. Introducing stroboscopic driving sequences to the generation of a momentum lattice, we show that the dynamics of atoms along the lattice is effectively governed by a periodically driven Su-Schrieffer-Heeger model, which is equivalent to a discrete-time topological quantum walk. We directly measure the underlying topological invariants through time-averaged mean chiral displacements, which are consistent with our experimental observation of topological phase transitions. We then observe interaction-induced localization in the quantum-walk dynamics, where atoms tend to populate a single momentum-lattice site under interactions that are nonlocal in momentum space. Our experiment opens up the avenue of investigating discrete-time topological quantum walks using cold atoms, where the many-body environment and tunable interactions offer exciting new possibilities.
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Affiliation(s)
- Dizhou Xie
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation, and Zhejiang Province Key Laboratory of Quantum Technology and Device of Physics Department, Zhejiang University, Hangzhou 310027, China
| | - Tian-Shu Deng
- CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China
| | - Teng Xiao
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation, and Zhejiang Province Key Laboratory of Quantum Technology and Device of Physics Department, Zhejiang University, Hangzhou 310027, China
| | - Wei Gou
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation, and Zhejiang Province Key Laboratory of Quantum Technology and Device of Physics Department, Zhejiang University, Hangzhou 310027, China
| | - Tao Chen
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation, and Zhejiang Province Key Laboratory of Quantum Technology and Device of Physics Department, Zhejiang University, Hangzhou 310027, China
| | - Wei Yi
- CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China
- CAS Center For Excellence in Quantum Information and Quantum Physics, Hefei 230026, China
| | - Bo Yan
- Interdisciplinary Center of Quantum Information, State Key Laboratory of Modern Optical Instrumentation, and Zhejiang Province Key Laboratory of Quantum Technology and Device of Physics Department, Zhejiang University, Hangzhou 310027, China
- Collaborative Innovation Centre of Advanced Microstructures, Nanjing University, Nanjing 210093, China
- Key Laboratory of Quantum Optics, Chinese Academy of Sciences, Shanghai 200800, China
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19
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Li HJ, Liu Y, Liu M, Niu XL, Xiao T, Gao XH, Chen HD, Qi RQ. [A comparative study on the storage of frozen skin tissue by a new mold embedding method]. Zhonghua Bing Li Xue Za Zhi 2020; 49:77-80. [PMID: 31914542 DOI: 10.3760/cma.j.issn.0529-5807.2020.01.017] [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: 06/10/2023]
Affiliation(s)
- H J Li
- First Hospital of China Medical University, NHC Key Laboratory of Immunodermatology, Key Laboratory of Immunodermatology, China Medical University; Ministry of Education, Key Laboratory of Immunodermatology, Shenyang 110001, China
| | - Y Liu
- First Hospital of China Medical University, NHC Key Laboratory of Immunodermatology, Key Laboratory of Immunodermatology, China Medical University; Ministry of Education, Key Laboratory of Immunodermatology, Shenyang 110001, China
| | - M Liu
- Institute of Respiratory Disease, China Medical University, Shenyang 110122, China
| | - X L Niu
- First Hospital of China Medical University, NHC Key Laboratory of Immunodermatology, Key Laboratory of Immunodermatology, China Medical University; Ministry of Education, Key Laboratory of Immunodermatology, Shenyang 110001, China
| | - T Xiao
- First Hospital of China Medical University, NHC Key Laboratory of Immunodermatology, Key Laboratory of Immunodermatology, China Medical University; Ministry of Education, Key Laboratory of Immunodermatology, Shenyang 110001, China
| | - X H Gao
- First Hospital of China Medical University, NHC Key Laboratory of Immunodermatology, Key Laboratory of Immunodermatology, China Medical University; Ministry of Education, Key Laboratory of Immunodermatology, Shenyang 110001, China
| | - H D Chen
- First Hospital of China Medical University, NHC Key Laboratory of Immunodermatology, Key Laboratory of Immunodermatology, China Medical University; Ministry of Education, Key Laboratory of Immunodermatology, Shenyang 110001, China
| | - R Q Qi
- First Hospital of China Medical University, NHC Key Laboratory of Immunodermatology, Key Laboratory of Immunodermatology, China Medical University; Ministry of Education, Key Laboratory of Immunodermatology, Shenyang 110001, China
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Liu Q, Wang H, Wang X, Lu M, Tan X, Peng L, Tan F, Xiao T, Xiao S, Xia Y. Experimental atopic dermatitis is dependent on the TWEAK/Fn14 signaling pathway. Clin Exp Immunol 2019; 199:56-67. [PMID: 31515807 DOI: 10.1111/cei.13373] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/05/2019] [Indexed: 12/23/2022] Open
Abstract
Tumor necrosis factor (TNF)-like weak inducer of apoptosis (TWEAK) acts through its receptor fibroblast growth factor inducible 14 (Fn14), and participates in skin inflammation. Both TWEAK and Fn14 are highly expressed in skin lesions of patients with atopic dermatitis. The purpose of this study was to further explore the effect of Fn14 inhibition on experimental atopic dermatitis. Experimental atopic dermatitis was induced in the wild-type and Fn14 knock-out BALB/c mice. The effect of TWEAK/Fn14 interaction on keratinocytes was studied in an in-vitro model of atopic dermatitis. Fn14 deficiency ameliorates skin lesions in the mice model, accompanied by less infiltration of inflammatory cells and lower local levels of proinflammatory cytokines, including TWEAK, TNF-α and interleukin (IL)-17. Fn14 deficiency also attenuates the up-regulation of TNFR1 in skin lesions of atopic dermatitis. Moreover, topical TWEAK exacerbates skin lesion in the wild-type but not in the Fn14 knock-out mice. In vitro, TWEAK enhances the expressions of IL-17, IL-18 and IFN-γ in keratinocytes under atopic dermatitis-like inflammation. These results suggest that Fn14 deficiency protects mice from experimental atopic dermatitis, involving the attenuation of inflammatory responses and keratinocyte apoptosis. In the context of atopic dermatitis-like inflammation, TWEAK modulates keratinocytes via a TNFR1-mediated pathway.
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Affiliation(s)
- Q Liu
- Department of Dermatology, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - H Wang
- Department of Dermatology, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - X Wang
- Department of Dermatology, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - M Lu
- Department of Dermatology, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - X Tan
- Department of Dermatology, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - L Peng
- Department of Dermatology, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - F Tan
- Department of Dermatology, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - T Xiao
- Department of Dermatology, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - S Xiao
- Department of Dermatology, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Y Xia
- Department of Dermatology, The Second Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
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21
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Ali A, Amaryan M, Anassontzis EG, Austregesilo A, Baalouch M, Barbosa F, Barlow J, Barnes A, Barriga E, Beattie TD, Berdnikov VV, Black T, Boeglin W, Boer M, Briscoe WJ, Britton T, Brooks WK, Cannon BE, Cao N, Chudakov E, Cole S, Cortes O, Crede V, Dalton MM, Daniels T, Deur A, Dobbs S, Dolgolenko A, Dotel R, Dugger M, Dzhygadlo R, Egiyan H, Ernst A, Eugenio P, Fanelli C, Fegan S, Foda AM, Foote J, Frye J, Furletov S, Gan L, Gasparian A, Gauzshtein V, Gevorgyan N, Gleason C, Goetzen K, Goncalves A, Goryachev VS, Guo L, Hakobyan H, Hamdi A, Han S, Hardin J, Huber GM, Hurley A, Ireland DG, Ito MM, Jarvis NS, Jones RT, Kakoyan V, Kalicy G, Kamel M, Kourkoumelis C, Kuleshov S, Kuznetsov I, Larin I, Lawrence D, Lersch DI, Li H, Li W, Liu B, Livingston K, Lolos GJ, Lyubovitskij V, Mack D, Marukyan H, Matveev V, McCaughan M, McCracken M, McGinley W, McIntyre J, Meyer CA, Miskimen R, Mitchell RE, Mokaya F, Nerling F, Ng L, Ostrovidov AI, Papandreou Z, Patsyuk M, Pauli P, Pedroni R, Pentchev L, Peters KJ, Phelps W, Pooser E, Qin N, Reinhold J, Ritchie BG, Robison L, Romanov D, Romero C, Salgado C, Schertz AM, Schumacher RA, Schwiening J, Seth KK, Shen X, Shepherd MR, Smith ES, Sober DI, Somov A, Somov S, Soto O, Stevens JR, Strakovsky II, Suresh K, Tarasov V, Taylor S, Teymurazyan A, Thiel A, Vasileiadis G, Werthmüller D, Whitlatch T, Wickramaarachchi N, Williams M, Xiao T, Yang Y, Zarling J, Zhang Z, Zhao G, Zhou Q, Zhou X, Zihlmann B. First Measurement of Near-Threshold J/ψ Exclusive Photoproduction off the Proton. Phys Rev Lett 2019; 123:072001. [PMID: 31491124 DOI: 10.1103/physrevlett.123.072001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/05/2019] [Indexed: 05/24/2023]
Abstract
We report on the measurement of the γp→J/ψp cross section from E_{γ}=11.8 GeV down to the threshold at 8.2 GeV using a tagged photon beam with the GlueX experiment. We find that the total cross section falls toward the threshold less steeply than expected from two-gluon exchange models. The differential cross section dσ/dt has an exponential slope of 1.67±0.39 GeV^{-2} at 10.7 GeV average energy. The LHCb pentaquark candidates P_{c}^{+} can be produced in the s channel of this reaction. We see no evidence for them and set model-dependent upper limits on their branching fractions B(P_{c}^{+}→J/ψp) and cross sections σ(γp→P_{c}^{+})×B(P_{c}^{+}→J/ψp).
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Affiliation(s)
- A Ali
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - M Amaryan
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - E G Anassontzis
- National and Kapodistrian University of Athens, 15771 Athens, Greece
| | - A Austregesilo
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - M Baalouch
- Old Dominion University, Norfolk, Virginia 23529, USA
| | - F Barbosa
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J Barlow
- Florida State University, Tallahassee, Florida 32306, USA
| | - A Barnes
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - E Barriga
- Florida State University, Tallahassee, Florida 32306, USA
| | - T D Beattie
- University of Regina, Regina, Saskatchewan, Canada S4S 0A2
| | - V V Berdnikov
- National Research Nuclear University Moscow Engineering Physics Institute, Moscow 115409, Russia
| | - T Black
- University of North Carolina at Wilmington, Wilmington, North Carolina 28403, USA
| | - W Boeglin
- Florida International University, Miami, Florida 33199, USA
| | - M Boer
- The Catholic University of America, Washington, D.C. 20064, USA
| | - W J Briscoe
- The George Washington University, Washington, D.C. 20052, USA
| | - T Britton
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - W K Brooks
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - B E Cannon
- Florida State University, Tallahassee, Florida 32306, USA
| | - N Cao
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
| | - E Chudakov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Cole
- Arizona State University, Tempe, Arizona 85287, USA
| | - O Cortes
- The George Washington University, Washington, D.C. 20052, USA
| | - V Crede
- Florida State University, Tallahassee, Florida 32306, USA
| | - M M Dalton
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - T Daniels
- University of North Carolina at Wilmington, Wilmington, North Carolina 28403, USA
| | - A Deur
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Dobbs
- Florida State University, Tallahassee, Florida 32306, USA
| | - A Dolgolenko
- National Research Centre Kurchatov Institute, Institute for Theoretical and Experimental Physics, Moscow 117259, Russia
| | - R Dotel
- Florida International University, Miami, Florida 33199, USA
| | - M Dugger
- Arizona State University, Tempe, Arizona 85287, USA
| | - R Dzhygadlo
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - H Egiyan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Ernst
- Florida State University, Tallahassee, Florida 32306, USA
| | - P Eugenio
- Florida State University, Tallahassee, Florida 32306, USA
| | - C Fanelli
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - S Fegan
- The George Washington University, Washington, D.C. 20052, USA
| | - A M Foda
- University of Regina, Regina, Saskatchewan, Canada S4S 0A2
| | - J Foote
- Indiana University, Bloomington, Indiana 47405, USA
| | - J Frye
- Indiana University, Bloomington, Indiana 47405, USA
| | - S Furletov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - L Gan
- University of North Carolina at Wilmington, Wilmington, North Carolina 28403, USA
| | - A Gasparian
- North Carolina A&T State University, Greensboro, North Carolina 27411, USA
| | - V Gauzshtein
- Tomsk State University, 634050 Tomsk, Russia
- Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - N Gevorgyan
- A.I. Alikhanian National Science Laboratory (Yerevan Physics Institute), 0036 Yerevan, Armenia
| | - C Gleason
- Indiana University, Bloomington, Indiana 47405, USA
| | - K Goetzen
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - A Goncalves
- Florida State University, Tallahassee, Florida 32306, USA
| | - V S Goryachev
- National Research Centre Kurchatov Institute, Institute for Theoretical and Experimental Physics, Moscow 117259, Russia
| | - L Guo
- Florida International University, Miami, Florida 33199, USA
| | - H Hakobyan
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - A Hamdi
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - S Han
- Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - J Hardin
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - G M Huber
- University of Regina, Regina, Saskatchewan, Canada S4S 0A2
| | - A Hurley
- College of William and Mary, Williamsburg, Virginia 23185, USA
| | - D G Ireland
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - M M Ito
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - N S Jarvis
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - R T Jones
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - V Kakoyan
- A.I. Alikhanian National Science Laboratory (Yerevan Physics Institute), 0036 Yerevan, Armenia
| | - G Kalicy
- The Catholic University of America, Washington, D.C. 20064, USA
| | - M Kamel
- Florida International University, Miami, Florida 33199, USA
| | - C Kourkoumelis
- National and Kapodistrian University of Athens, 15771 Athens, Greece
| | - S Kuleshov
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - I Kuznetsov
- Tomsk State University, 634050 Tomsk, Russia
- Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - I Larin
- University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - D Lawrence
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D I Lersch
- Florida State University, Tallahassee, Florida 32306, USA
| | - H Li
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - W Li
- College of William and Mary, Williamsburg, Virginia 23185, USA
| | - B Liu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
| | - K Livingston
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - G J Lolos
- University of Regina, Regina, Saskatchewan, Canada S4S 0A2
| | - V Lyubovitskij
- Tomsk State University, 634050 Tomsk, Russia
- Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - D Mack
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Marukyan
- A.I. Alikhanian National Science Laboratory (Yerevan Physics Institute), 0036 Yerevan, Armenia
| | - V Matveev
- National Research Centre Kurchatov Institute, Institute for Theoretical and Experimental Physics, Moscow 117259, Russia
| | - M McCaughan
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - M McCracken
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - W McGinley
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - J McIntyre
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - C A Meyer
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - R Miskimen
- University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - R E Mitchell
- Indiana University, Bloomington, Indiana 47405, USA
| | - F Mokaya
- University of Connecticut, Storrs, Connecticut 06269, USA
| | - F Nerling
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - L Ng
- Florida State University, Tallahassee, Florida 32306, USA
| | - A I Ostrovidov
- Florida State University, Tallahassee, Florida 32306, USA
| | - Z Papandreou
- University of Regina, Regina, Saskatchewan, Canada S4S 0A2
| | - M Patsyuk
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - P Pauli
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - R Pedroni
- North Carolina A&T State University, Greensboro, North Carolina 27411, USA
| | - L Pentchev
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - K J Peters
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - W Phelps
- The George Washington University, Washington, D.C. 20052, USA
| | - E Pooser
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - N Qin
- Northwestern University, Evanston, Illinois 60208, USA
| | - J Reinhold
- Florida International University, Miami, Florida 33199, USA
| | - B G Ritchie
- Arizona State University, Tempe, Arizona 85287, USA
| | - L Robison
- Northwestern University, Evanston, Illinois 60208, USA
| | - D Romanov
- National Research Nuclear University Moscow Engineering Physics Institute, Moscow 115409, Russia
| | - C Romero
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - C Salgado
- Norfolk State University, Norfolk, Virginia 23504, USA
| | - A M Schertz
- College of William and Mary, Williamsburg, Virginia 23185, USA
| | - R A Schumacher
- Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - J Schwiening
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - K K Seth
- Northwestern University, Evanston, Illinois 60208, USA
| | - X Shen
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
| | - M R Shepherd
- Indiana University, Bloomington, Indiana 47405, USA
| | - E S Smith
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - D I Sober
- The Catholic University of America, Washington, D.C. 20064, USA
| | - A Somov
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - S Somov
- National Research Nuclear University Moscow Engineering Physics Institute, Moscow 115409, Russia
| | - O Soto
- Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile
| | - J R Stevens
- College of William and Mary, Williamsburg, Virginia 23185, USA
| | - I I Strakovsky
- The George Washington University, Washington, D.C. 20052, USA
| | - K Suresh
- University of Regina, Regina, Saskatchewan, Canada S4S 0A2
| | - V Tarasov
- National Research Centre Kurchatov Institute, Institute for Theoretical and Experimental Physics, Moscow 117259, Russia
| | - S Taylor
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - A Teymurazyan
- University of Regina, Regina, Saskatchewan, Canada S4S 0A2
| | - A Thiel
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - G Vasileiadis
- National and Kapodistrian University of Athens, 15771 Athens, Greece
| | - D Werthmüller
- University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - T Whitlatch
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | | | - M Williams
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - T Xiao
- Northwestern University, Evanston, Illinois 60208, USA
| | - Y Yang
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - J Zarling
- Indiana University, Bloomington, Indiana 47405, USA
| | - Z Zhang
- Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - G Zhao
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
| | - Q Zhou
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
| | - X Zhou
- Wuhan University, Wuhan, Hubei 430072, People's Republic of China
| | - B Zihlmann
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
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22
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Xiao T, Yuan H, Ma Q, Guo X, Wu Y. An approach for in situ qualitative and quantitative analysis of moisture adsorption in nanogram-scaled lignin by using micro-FTIR spectroscopy and partial least squares regression. Int J Biol Macromol 2019; 132:1106-1111. [PMID: 30974143 DOI: 10.1016/j.ijbiomac.2019.04.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 12/23/2018] [Revised: 03/29/2019] [Accepted: 04/07/2019] [Indexed: 11/16/2022]
Abstract
Moisture sorption has a great impact on the mechanical properties of lignin. To better characterize the moisture sorption of lignin, an approach for in situ qualitative and quantitative analysis of moisture adsorption in nanogram-scaled lignin by using micro-FTIR spectroscopy and partial least squares regression is introduced in this study. Spectra of nanogram-scaled lignin were collected within the relative humidity (RH) of 0%-92%. A qualitative analysis of these measured spectra confirmed the effective water sorption sites and determined spectral ranges related to moisture adsorption. Using these identified spectral ranges, a quantitative forecasting model for the moisture content (MC) of lignin was built and developed according to partial least square regression (R2, 0.9996; RMSECV, 0.408; RMSEP, 0.118). Furthermore, the water sorption isotherm of lignin was acquired using the established forecasting model in which a very positive correlation between the estimated and measured MCs was demonstrated using a dynamic vapor sorption (DVS) setup. The results confirmed the practicability and effectiveness of this in situ qualitative and quantitative analysis approach.
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Affiliation(s)
- Teng Xiao
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China; College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Hanmeng Yuan
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Qiang Ma
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China
| | - Xin Guo
- College of Science, Central South University of Forestry and Technology, Changsha 410004, China.
| | - Yiqiang Wu
- College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
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23
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Feng M, Jin JQ, Xia L, Xiao T, Mei S, Wang X, Huang X, Chen J, Liu M, Chen C, Rafi S, Zhu AX, Feng YX, Zhu D. Pharmacological inhibition of β-catenin/BCL9 interaction overcomes resistance to immune checkpoint blockades by modulating T reg cells. Sci Adv 2019; 5:eaau5240. [PMID: 31086813 PMCID: PMC6506245 DOI: 10.1126/sciadv.aau5240] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 03/27/2019] [Indexed: 06/09/2023]
Abstract
The Wnt/β-catenin (β-cat) pathway plays a critical role in cancer. Using hydrocarbon-stapled peptide technologies, we aim to develop potent, selective inhibitors targeting this pathway by disrupting the interaction of β-cat with its coactivators B-cell lymphoma 9 (BCL9) and B-cell lymphoma 9-like (B9L). We identified a set of peptides, including hsBCL9CT-24, that robustly inhibits the activity of β-cat and suppresses cancer cell growth. In animal models, these peptides exhibit potent anti-tumor effects, favorable pharmacokinetic profiles, and minimal toxicities. Markedly, these peptides promote intratumoral infiltration of cytotoxic T cells by reducing regulatory T cells (Treg) and increasing dendritic cells (DCs), therefore sensitizing cancer cells to PD-1 inhibitors. Given the strong correlation between Treg infiltration and APC mutation in colorectal cancers, it indicates our peptides can reactivate anti-cancer immune response suppressed by the oncogenic Wnt pathway. In summary, we report a promising strategy for cancer therapy by pharmacological inhibition of the Wnt/β-cat signaling.
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MESH Headings
- Animals
- Antineoplastic Agents, Immunological/metabolism
- Antineoplastic Agents, Immunological/pharmacology
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Chemokine CCL20/antagonists & inhibitors
- Chemokine CCL20/metabolism
- Chemokine CCL22/antagonists & inhibitors
- Chemokine CCL22/metabolism
- Colorectal Neoplasms/metabolism
- Colorectal Neoplasms/pathology
- Female
- Humans
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Peptides/metabolism
- Peptides/pharmacology
- T-Lymphocytes, Cytotoxic/cytology
- T-Lymphocytes, Cytotoxic/immunology
- T-Lymphocytes, Cytotoxic/metabolism
- T-Lymphocytes, Regulatory/cytology
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- Transcription Factors/antagonists & inhibitors
- Transcription Factors/chemistry
- Transcription Factors/metabolism
- Transplantation, Heterologous
- Wnt Signaling Pathway/drug effects
- beta Catenin/antagonists & inhibitors
- beta Catenin/metabolism
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Affiliation(s)
- M. Feng
- School of Pharmacy, Fudan University, Shanghai, 201203, China
| | - J. Q. Jin
- Harvard College, Harvard University, Cambridge, MA 02138, USA
| | - L. Xia
- School of Pharmacy, Fudan University, Shanghai, 201203, China
| | - T. Xiao
- Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02145, USA
| | - S. Mei
- Department of Bioinformatics, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - X. Wang
- School of Pharmacy, Fudan University, Shanghai, 201203, China
| | - X. Huang
- School of Pharmacy, Fudan University, Shanghai, 201203, China
| | - J. Chen
- School of Pharmacy, Fudan University, Shanghai, 201203, China
| | - M. Liu
- Harvard College, Harvard University, Cambridge, MA 02138, USA
| | - C. Chen
- Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02145, USA
| | - S. Rafi
- Schrödinger, LLC, Cambridge, MA 02142, USA
| | - A. X. Zhu
- Massachusetts General Hospital Cancer Center, Boston, MA 02114, USA
| | - Y.-X. Feng
- The First Affiliated Hospital, Zhejiang University School of Medicine, Institute of Translational Medicine, Zhejiang University, Hangzhou 310029, China
- Whitehead Institute for Biomedical Research, Cambridge, MA 02142, USA
| | - D. Zhu
- School of Pharmacy, Fudan University, Shanghai, 201203, China
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24
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Yang Y, Yuan L, Li J, Muhammad I, Cheng P, Xiao T, Zhang X. Preparation and evaluation of tilmicosin microspheres and lung-targeting studies in rabbits. Vet J 2019; 246:27-34. [PMID: 30902186 DOI: 10.1016/j.tvjl.2019.01.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 01/23/2019] [Accepted: 01/23/2019] [Indexed: 11/15/2022]
Abstract
Tilmicosin (TMS) is a macrolide used extensively for pulmonary infections in clinical veterinary medicine. However, TMS has frequent administration and short elimination half-life. Therefore, tilmicosin-gelatine microspheres (TMS-GMS) were prepared by an emulsion-chemical cross-linking technique as a sustained-release formulation to extend drug half-life. The particle size distribution, in-vitro sustained-release properties, stability, and physical characteristics, as well as pharmacokinetic (PK) characteristics, were evaluated in rabbits. TMS-GMS were spherical in shape and had a mean diameter of 11.34±1.20μm; 95.65% of the microspheres varied in size from 5.0 to 25.0μm. Light and thermal stability tests indicated no significant changes in all observed indices. Importantly, compared to crude TMS, slower release of TMS from TMS-GMS was noted in drug release studies (in vitro). Pharmacokinetic (PK) characteristics were examined in the lung, liver, heart, kidney and muscle tissue of rabbits following IM injection of TMS-GMS or TMS-injection at a dose of 10mg/kg. The elimination half-life of TMS-GMS (59.21±0.21h) was longer than that of TMS-injection (38.56±0.13h) in the lung. The ratio of peak concentration (Ce) of TMS-GMS to TMS-injection was 2.19 (>1) in the lung, demonstrating the selectivity of TMS-GMS to target the lung compared to that of other tissues (Ce<1). Interestingly, the uptake value of TMS from TMS-GMS was 8.48 times higher in the lung than that for the TMS-injection, and was slightly higher than in the liver (1.85), heart (1.72), kidney (2.44) and muscle (2.79) tissues. TMS-GMS is a sustained-release formulation of TMS with potential to be used in veterinary clinical applications; possible benefits include lung-targeting and prolonged elimination half-life.
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Affiliation(s)
- Y Yang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China
| | - L Yuan
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China; College of Veterinary Medicine, National Reference Laboratory of Veterinary Drug Residues (SCAU), South China Agricultural University, 510642 Guangzhou, China
| | - J Li
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China
| | - I Muhammad
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China
| | - P Cheng
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China
| | - T Xiao
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China
| | - X Zhang
- Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Faculty of Basic Veterinary Science, College of Veterinary Medicine, Northeast Agricultural University,600 Changjiang Road, Xiangfang District, Harbin, PR China.
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25
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Jie X, Xiao T, Yao B, Gonzalez-Cortes S, Wang J, Fang Y, Miller N, AlMegren H, Dilworth J, Edwards P. On the performance optimisation of Fe catalysts in the microwave - assisted H2 production by the dehydrogenation of hexadecane. Catal Today 2018. [DOI: 10.1016/j.cattod.2018.03.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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26
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Fang J, Du J, Fang J, Xiao T, Le X, Pan N, Yu J, Liu B. Parameter-specific analgesic effects of electroacupuncture mediated by degree of regulation TRPV1 and P2X3 in inflammatory pain in rats. Life Sci 2018; 200:69-80. [DOI: 10.1016/j.lfs.2018.03.028] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 12/11/2017] [Accepted: 03/07/2018] [Indexed: 12/21/2022]
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27
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Xiao T, Wang T, Yan B. Note: A simple magnetic field design for dichroic atomic vapor laser lock. Rev Sci Instrum 2018; 89:046106. [PMID: 29716324 DOI: 10.1063/1.5020519] [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: 06/08/2023]
Abstract
The dichroic atomic vapor laser lock (DAVLL) is a very useful scheme for frequency stabilization. A bias field on the order of 100 G is required to get the error signal for frequency locking. Here we report a simple design for the bias field with the permanent magnetic balls. It is really simple and easy to adjust the magnitude. Since the DAVLL lock is not sensitive to the bias field, such a design is very suitable.
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Affiliation(s)
- Teng Xiao
- Department of Physics, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Tong Wang
- Department of Physics, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Bo Yan
- Department of Physics, Zhejiang University, Hangzhou, Zhejiang 310027, China
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28
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Chang C, Qiu NN, Xiao T, Xiao X, Chu KK, Li Y, Wu QR, Fang H, Ke XY. [Structural change of the corpus callosum fibers in toddlers with autism spectrum disorder: two-year follow-up]. Zhonghua Er Ke Za Zhi 2018; 55:920-925. [PMID: 29262472 DOI: 10.3760/cma.j.issn.0578-1310.2017.12.011] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To conduct a follow-up investigation of structural changes of the corpus callosum fibers of toddlers (2 to 5 years of age) with autism spectrum disorder(ASD) and to explore the associations with clinical symptoms. Method: In this prospective randomized controlled study, ASD children who were diagnosed in the Child Mental Health Research Center, Nanjing Brain Hospital Affiliated to Nanjing Medical University from May 2011 to November 2012 were included in the ASD group, and developmentally delayed children were included in the control group (DD group). Diffusion tensor imaging (DTI) data from the two groups were obtained at two age levels: 2-3 years of age, and 4-5 years of age. Region of interest analysis was applied to assess characteristic values of total area and sub-regions of corpus callosum: the fraction anisotropy (FA), the mean diffusivity (MD), the radial diffusivity (RD) and the axial diffusivity (AD). All children were assessed using the Autism Diagnostic Interview-Revised (ADI-R) and Autism Treatment Evaluation Checklist (ATEC). The characteristic values of total area and sub-regions of corpus callosum of ASD group at two age levels were analyzed by paired sample t test; the characteristic values of total area and sub-regions of corpus callosum of ASD group and DD group were analyzed by independent-sample t test; the correlations between FA values of the total area and sub-regions of corpus callosum and ADI-R or ATEC scores were analyzed by Pearson correlation analysis. Result: Forty cases meeting inclusion criteria were enrolled in ASD group, and 31 eligible cases were enrolled in the control group. Four children in the ASD group were lost to follow-up, and 5 children in the control group were lost to follow-up. Longitudinal comparison between the two age subgroups of ASD patients showed that the FA values of the total corpus callosum increased (0.499 55±0.027 59 vs. 0.505 83±0.086 64, t=4.88, P<0.05), but MD values, RD values and AD values of the total corpus callosum area decreased (0.000 89±0.000 03 vs. 0.000 81±0.000 14, 0.000 61±0.000 04 vs. 0.000 55±0.000 09, 0.001 43±0.000 03 vs. 0.001 38±0.000 03, t=9.31, 7.90, 8.66, P<0.05 for all comparisons). In the area of corpus callosum genu, FA and AD values increased (t=5.59, 8.48, P<0.05 for both comparisons), but MD and RD values decreased (t=12.67, 11.28, P<0.05 for both comparisns). In the area of corpus callosum body, FA and RD values increased(t=5.46, 8.48, P<0.05 for both comparisons), but MD and AD values decreased (t=8.08, 6.22, P<0.05 for both comparisons). In the area of corpus callosum splenium, MD, RD and AD values decreased (t=6.81, 4.44, 5.51, P < 0.05 for all comparisons). Among the participants 2 to 3 years of age, there were no significantly differences in FA values of total area and sub-regions of corpus callosum between ASD group and the DD group (P > 0.05 for all comparisons); as compared with the DD group, ASD group had higher AD values of total area and splenium of corpus callosum (0.001 43±0.000 03 vs. 0.001 40±0.000 04, 0.001 34±0.000 03 vs. 0.001 32±0.000 04, t=1.56, 1.14, P < 0.05 for both comparisons); ASD group had lower AD values but higher RD and MD values of corpus callosum genu (t=0.07, 0.55, 0.07, P < 0.05 for all comparisons); ASD group had lower RD values of corpus callosum body (t=0.07, P < 0.05). Among the participants 4 to 5 years of age, as compared with the DD group, ASD group had higher FA value of total corpus callosum area(0.505 83±0.086 64 vs. 0.483 77±0.099 30, t=8.56, P < 0.05), lower RD value of total corpus callosum(0.000 55±0.000 09 vs. 0.000 56±0.000 12, t=14.44, P < 0.05), lower RD values of corpus callosum body (t=2.20, P < 0.05), higher FA values (t=3.35, P < 0.05) but lower AD values of corpus callosum splenium (t=2.20, P < 0.05). A correlation analysis between FA values of total area and sub-regions of corpus callosum and clinical variables showed that the FA values of total area and splenium of corpus callosum in ASD group at 2 to 3 years of age were negatively correlated with the scores of language skills in ATEC (r=-0.35,-0.36, P < 0.05 for both comparisons). And after two years, FA values of total corpus callosum were positively correlated with the scores of social communication in ATEC (r=0.34, P < 0.05). There was no significant correlation between FA values of sub-regions of corpus callosum and the scores of ATEC (P > 0.05 for all comparisons). There was no significant correlation between FA values of total area and sub-regions of corpus callosum and the scores of ADI-R (P > 0.05 for all comparisons). Conclusion: The fiber structure of corpus callosum was still in the process of maturing during the age of 2 to 5 years; however, compared with DD group, ASD group had more extensive structural abnormalities of the corpus callosum fibers as age increased, and the structural abnormalities had correlation with the core symptoms of ASD. Trial registration Chinese Clinical Trial Registry, ChiCTR-OPC-17011995.
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Affiliation(s)
- C Chang
- Child Mental Health Research Center, Nanjing Brain Hospital Affiliated to Nanjing Medical University, Nanjing 210029, China
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29
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Zhu X, Pan L, Xiao T, Ren X, Liu Z. Exogenous niacin treatment increases NADPH oxidase in kiwifruit. BRAZ J BIOL 2018; 78:686-690. [PMID: 29412249 DOI: 10.1590/1519-6984.173709] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 05/27/2017] [Indexed: 11/22/2022] Open
Abstract
Kiwifruit are a popular fruit worldwide; however, plant growth is threatened by abiotic stresses such as drought and high temperatures. Niacin treatment in plants has been shown to increase NADPH levels, thus enhancing abiotic stresses tolerance. Here, we evaluate the effect of niacin solution spray treatment on NADPH levels in the kiwifruit cultivars Hayward and Xuxiang. We found that spray treatment with niacin solution promoted NADPH and NADP+ levels and decreased both O2·- production and H2O2 contents in leaves during a short period. In fruit, NADPH contents increased during early development, but decreased later. However, no effect on NADP+ levels has been observed throughout fruit development. In summary, this report suggests that niacin may be used to increase NADPH oxidases, thus increasing stress-tolerance in kiwifruit during encounter of short-term stressful conditions.
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Affiliation(s)
- X Zhu
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China.,Institute of Economic Crop Research, Shiyan Academy of Agricultural Sciences, Shiyan, 442714, Hubei, China
| | - L Pan
- Institute of Economic Crop Research, Shiyan Academy of Agricultural Sciences, Shiyan, 442714, Hubei, China
| | - T Xiao
- Institute of Economic Crop Research, Shiyan Academy of Agricultural Sciences, Shiyan, 442714, Hubei, China
| | - X Ren
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
| | - Z Liu
- College of Horticulture, Northwest A&F University, Yangling, 712100, Shaanxi, China
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30
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Parmar H, Xiao T, Chaudhary V, Zhong Y, Ramanujan RV. High energy product chemically synthesized exchange coupled Nd 2Fe 14B/α-Fe magnetic powders. Nanoscale 2017; 9:13956-13966. [PMID: 28920126 DOI: 10.1039/c7nr02348k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The excellent hard magnetic properties of Nd2Fe14B based magnets have an enormous range of technological applications. Exchange-coupled Nd2Fe14B/α-Fe magnets were chemically synthesized by a microwave assisted combustion process to produce mixed oxides, followed by a reduction diffusion process to form magnetic nano-composite powder. This synthesis technique offers an inexpensive and facile platform to produce exchange coupled hard magnets. The size dependent magnetic properties were investigated. The formation mechanisms of the oxide powders and the reduction diffusion mechanism were identified. The microwave power was found to play a crucial role in determining the crystallite size. The coercivity of the powder increased with increasing particle size. Room temperature coercivity (Hc) values greater than 9 kOe and magnetization of 110 emu g-1 was obtained in particles with a mean size of ∼62 nm. An energy product of 5.2 MGOe was obtained, which is the highest reported value for chemically synthesized hard magnetic Nd2Fe14B/α-Fe powders.
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Affiliation(s)
- Harshida Parmar
- Rolls-Royce@NTU Corporate Lab, Nanyang Technological University, 639798, Singapore
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31
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Mu XP, Wang HB, Cheng X, Yang L, Sun XY, Qu HL, Zhao SS, Zhou ZK, Liu TT, Xiao T, Song B, Jolkkonen J, Zhao CS. Inhibition of Nkcc1 promotes axonal growth and motor recovery in ischemic rats. Neuroscience 2017; 365:83-93. [PMID: 28964752 DOI: 10.1016/j.neuroscience.2017.09.036] [Citation(s) in RCA: 7] [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: 03/14/2017] [Revised: 09/03/2017] [Accepted: 09/21/2017] [Indexed: 12/15/2022]
Abstract
Bumetanide is a selective inhibitor of the Na+-K+-Cl--co-transporter 1(NKCC1). We studied whether bumetanide could affect axonal growth and behavioral outcome in stroke rats. Adult male Wistar rats were randomly assigned to four groups: sham-operated rats treated with vehicle or bumetanide, and ischemic rats treated with vehicle or bumetanide. Endothelin-1 was used to induce focal cerebral ischemia. Bumetanide administration (i.c.v.) started on postoperative day 7 and continued for 3 weeks. Biotinylated dextran amine (BDA) was injected into the right imotor cortex on postoperative day 14 to trace corticospinal tract (CST) fibers sprouting into the denervated cervical spinal cord. Nogo-A, NKCC1, KCC2 and BDNF in the perilesional cortex and BDA, PSD-95 and vGlut1 in the denervated spinal cord were measured by immunohistochemistry and/or Western blot. Behavioral outcome of rats was assessed by the beam walking and cylinder tests. The total length of CST fibers sprouting into the denervated cervical spinal cord significantly increased after stroke and bumetanide further increased this sprouting. Bumetanide treatment also decreased the expressions of NKCC1 and Nogo-A, increased the expressions of KCC2 and BDNF in the perilesional cortex and enhanced the synaptic plasticity in the denervated cervical spinal cord after cerebral ischemia. The behavioral performance of ischemic rats was significantly improved by bumetanide. In conclusion, bumetanide promoted post-stroke axonal sprouting together accompanied by an improved behavioral outcome possibly through restoring and maintaining neuronal chloride homeostasis and creating a recovery-promoting microenvironment by overcoming the axonal growth inhibition encountered after cerebral ischemia in rats.
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Affiliation(s)
- X P Mu
- Department of Neurology, The First Affiliated Hospital, China Medical University, Shenyang, China; Department of Neurology, The Fourth Affiliated Hospital, China Medical University, Shenyang, China
| | - H B Wang
- Department of Neurology, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - X Cheng
- Department of Neurology, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - L Yang
- Department of Cardiology, The Affiliated Center Hospital, Shenyang Medical College, Shenyang, China
| | - X Y Sun
- Department of Neurology, The People's Hospital of Liaoning Province, Shenyang, China
| | - H L Qu
- Department of Neurology, The People's Hospital of Liaoning Province, Shenyang, China
| | - S S Zhao
- Department of Neurology, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - Z K Zhou
- Department of Geriatrics, The First Affiliated Hospital, China Medical University, Shenyang, China
| | - T T Liu
- Department of Neurology, The People's Hospital of Liaoning Province, Shenyang, China
| | - T Xiao
- Department of Dermatology, The First Affiliated Hospital, China Medical University, Shenyang, China; Key Laboratory of Immunodermatology, Ministry of Health, Ministry of Education, Shenyang, China
| | - B Song
- Regenerative Medicine, Cardiff Institute of Tissue Engineering and Repair, School of Dentistry, Cardiff University, Cardiff, UK
| | - J Jolkkonen
- Institute of Clinical Medicine - Neurology, University of Eastern Finland, P. O. Box 1627, 70211 Kuopio, Finland
| | - C S Zhao
- Department of Neurology, The First Affiliated Hospital, China Medical University, Shenyang, China.
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Zheng J, Xiao T, Ye P, Miao D, Wu H. Xuezhikang reduced arterial stiffness in patients with essential hypertension: a preliminary study. ACTA ACUST UNITED AC 2017; 50:e6363. [PMID: 28876367 PMCID: PMC5579967 DOI: 10.1590/1414-431x20176363] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 06/22/2017] [Indexed: 01/08/2023]
Abstract
This study aimed to test the effects of xuezhikang, a cholestin extract that contains statin-like components, on arterial stiffness in patients with essential hypertension. One hundred hypertensive patients from the Chinese PLA General Hospital were randomly allocated to receive xuezhikang (1200 mg/day, orally) or placebo (same capsules containing only pharmaceutical excipients). Physical examination outcomes, lipid profile, high sensitivity C-reactive protein (hs-CRP) levels, matrix metalloproteinases-9 (MMP-9) levels, and arterial outcomes, including stiffness parameter (β), pressure-strain elasticity modulus (Ep), arterial compliance (AC), augmentation index (AI), and one-point pulse wave velocity (PWVβ) were obtained at baseline and after 6 months of the intervention. Xuezhikang significantly reduced β (8.4±3.1 vs 6.8±2.1, P=0.007), Ep (122.8±43.9 vs 100.7±33.2, P=0.009), PWVβ (6.7±1.2 vs 6.1±1.0, P=0.013), low-density lipoprotein cholesterol (3.4±0.6 vs 2.9±0.5, P=0.001), hs-CRP [2.1 (0.4-10.0) vs 1.4 (0.3-4.1), P=0.020], and MMP-9 (17.2±2.4 vs 12.7±3.8, P <0.001) compared to baseline. The placebo had no effect on these parameters. The changes of PWVβ in the xuezhikang group was significantly associated with the changes of hs-CRP and MMP-9 (r=0.144, P=0.043; r=0.278, P=0.030, respectively) but not with lipid profile changes. Our research showed xuezhikang can improve the parameters of arterial stiffness in hypertensive patients, and its effect was independent of lipid lowering.
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Affiliation(s)
- J Zheng
- Department of Geriatric Cardiology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - T Xiao
- Department of Geriatric Cardiology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - P Ye
- Department of Geriatric Cardiology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - D Miao
- Department of Geriatric Cardiology, Chinese People's Liberation Army General Hospital, Beijing, China
| | - H Wu
- Department of Geriatric Cardiology, Chinese People's Liberation Army General Hospital, Beijing, China
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Xu L, Cai S, Xiao T, Chen Y, Qiu H, Wu B, Lin G, Sun X, Lu J, Zhou W, Xiao Y. Prognostic significance of tumour regression grade after neoadjuvant chemoradiotherapy for a cohort of patients with locally advanced rectal cancer: an 8-year retrospective single-institutional study. Colorectal Dis 2017; 19:O263-O271. [PMID: 28603932 DOI: 10.1111/codi.13757] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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: 11/21/2016] [Accepted: 04/12/2017] [Indexed: 12/25/2022]
Abstract
AIM Locally advanced rectal cancer (LARC) is frequently treated with neoadjuvant chemoradiotherapy (NACRT) to reduce the risk of local recurrence and improve survival. Tumour response to NACRT is variable and may influence the prognosis after subsequent surgery. This study compared the prognostic values of tumour regression grade (TRG) and neoadjuvant pathological (ypTNM) downstaging in patients with Stage II and III rectal cancer treated with NACRT followed by curative surgery. METHOD This study included 185 patients with LARC treated with long-course radiotherapy (45 Gy in 25 fractions) plus 5-fluorouracil over 5 weeks between 2005 and 2013. We used multivariate analysis to assess the relationship of Dworak's five-tier TRG, ypTNM stage and ypTNM downstaging with clinicopathological factors, 5-year disease-free survival (DFS) and 5-year overall survival (OS). RESULTS Total regression (TRG4), good regression (TRG3), moderate regression (TRG2), minor regression (TRG1) and no regression (TRG0) were seen in 38 (20.6%), 65 (35.2%), 43 (23.2%), 28 (15.1%) and 11 (5.9%) patients, respectively. TNM downstaging following NACRT occurred in 109 (58.9%) patients. The 5-year DFS rates after NACRT for TRG0, TRG1, TRG2, TRG3 and TRG4 were 0%, 58.5%, 66.4%, 80.4% and 82.6%, respectively (P < 0.001). The ypTNM stage correlated with 5-year DFS (P = 0.004) but not 5-year OS (P = 0.075). Multivariate analysis demonstrated that TRG was related to both DFS and OS (P < 0.001). CONCLUSION TRG measured on a five-tier system was better than ypTNM stage for predicting outcome in patients with LARC treated with NACRT and surgery.
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Affiliation(s)
- L Xu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - S Cai
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - T Xiao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Y Chen
- National Key Laboratory of Medical Molecular Biology and Department of Immunology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - H Qiu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - B Wu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - G Lin
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X Sun
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Lu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - W Zhou
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Xiao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Wu J, Zhang LM, Xiao T, Chen HD. Refractory chronic spontaneous urticaria associated with CD4 lymphocytopenia in a patient with thymoma. Clin Exp Dermatol 2017. [PMID: 28639715 DOI: 10.1111/ced.13170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J Wu
- Department of Dermatology, No.1 Hospital of China Medical University, Shenyang, China
| | - L M Zhang
- Department of Dermatology, No.1 Hospital of China Medical University, Shenyang, China
| | - T Xiao
- Department of Dermatology, No.1 Hospital of China Medical University, Shenyang, China
| | - H D Chen
- Department of Dermatology, No.1 Hospital of China Medical University, Shenyang, China
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Qiang Y, Xu J, Yan C, Jin H, Xiao T, Yan N, Zhou L, An H, Zhou X, Shao Q, Xia S. Butyrate and retinoic acid imprint mucosal-like dendritic cell development synergistically from bone marrow cells. Clin Exp Immunol 2017; 189:290-297. [PMID: 28542882 DOI: 10.1111/cei.12990] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2017] [Indexed: 12/27/2022] Open
Abstract
Accumulating data show that the phenotypes and functions of distinctive mucosal dendritic cells (DCs) in the gut are regulated by retinoic acid (RA). Unfortunately, the exact role of butyrate in RA-mediated mucosal DC differentiation has not been elucidated thoroughly to date. Mucosal-like dendritic cell differentiation was completed in vitro by culturing bone marrow cells with growth factors [granulocyte-macrophage colony-stimulating factor (GM-CSF/interleukin (IL)-4], RA and/or butyrate. The phenotypes, cytokine secretion, immune functions and levels of retinal dehydrogenase of different DCs were detected using quantitative polymerase chain reaction (qPCR), enzyme-linked immunosorbent assay (ELISA) and flow cytometry, respectively. The results showed that RA-induced DCs (RA-DCs) showed mucosal DC properties, including expression of CD103 and gut homing receptor α4 β7 , low proinflammatory cytokine secretion and low priming capability to antigen-specific CD4+ T cells. Butyrate-treated RA-DCs (Bu-RA-DCs) decreased CD11c, but increased CD103 and α4 β7 expression. Moreover, the CD4+ T priming capability and the levels of retinal dehydrogenase of RA-DCs were suppressed significantly by butyrate. Thus, butyrate and retinoic acid have different but synergistic regulatory functions on mucosal DC differentiation, indicating that immune homeostasis in the gut depends largely upon RA and butyrate to imprint different mucosal DC subsets, both individually and collectively.
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Affiliation(s)
- Y Qiang
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Department of Clinical Laboratory, the Second People's Hospital of Changzhou Affiliated to Nanjing Medical University, Changzhou, Jiangsu, China
| | - J Xu
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - C Yan
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - H Jin
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - T Xiao
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - N Yan
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - L Zhou
- Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - H An
- Cancer Institute, Institute of Translational Medicine, Second Military Medical University, Shanghai, China
| | - X Zhou
- Department of Pathology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Q Shao
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - S Xia
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China.,Institute of Clinic Laboratory Diagnosis, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
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Zhao-Bo Z, Xiao T, Sheng JZ. Anti-inflammatory and anti-apoptotic effect of Rhodiola crenulata extract on spinal cord injury in rats. TROP J PHARM RES 2017. [DOI: 10.4314/tjpr.v16i3.15] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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37
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Xiao T, Zhang Y. Correlation between athlete training intensity and cardiac performance. Niger J Clin Pract 2017; 20:248-251. [PMID: 28091446 DOI: 10.4103/1119-3077.196064] [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: 11/04/2022]
Abstract
OBJECTIVE An effective analysis of correlation between training intensity of athletes and cardiac performance is done to develop scientific and reasonable exercise program and to promote health of athletes. METHODS During December 2013-December 2015, 3600 students from different sports schools were selected for the test. All the athletes were randomly grouped, that is half-hour running group, one-hour running group and 90 -minute running group, which are named A, B, C groups respectively. The three groups of athletes received 5 days of testing per week, and took rest in the remaining two days, maintaining a total of 10 days. Exercise intensity of personnel accepting test was detected by RPE, and effective analysis was made on cardiac function change before and after test of three groups of the college students. RESULTS Resting heart rates of B, C group students were considerably decreased after exercise. In comparison of falling range of group C and group A, there is a statistically significant difference, P <0.05. CONCLUSION By strengthening athletes' training intensity, we can effectively enhance athletes' cardiac performance. t As a result, athletes' body becomes healthier, which is conducive to athletes' physical and mental development.
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Affiliation(s)
- T Xiao
- Department of Zhengzhou University, Zhengzhou, China
| | - Y Zhang
- The Third Xiang-ya Hospital, Central South University, Changsha, China
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Li C, Yuan Z, Ou J, Fan X, Ye S, Xiao T, Shi Y, Huang Z, Ng SKW, Zhong Z, Zheng J. An AIS-based high-resolution ship emission inventory and its uncertainty in Pearl River Delta region, China. Sci Total Environ 2016; 573:1-10. [PMID: 27543686 DOI: 10.1016/j.scitotenv.2016.07.219] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Revised: 07/30/2016] [Accepted: 07/30/2016] [Indexed: 05/16/2023]
Abstract
Ship emissions contribute significantly to air pollution and impose health risks to residents along the coastal area. By using the refined data from the Automatic Identification System (AIS), this study developed a highly resolved ship emission inventory for the Pearl River Delta (PRD) region, China, home to three of ten busiest ports in the world. The region-wide SO2, NOX, CO, PM10, PM2.5, and VOC emissions in 2013 were estimated to be 61,484, 103,717, 10,599, 7155, 6605, and 4195t, respectively. Ocean going vessels were the largest contributors of the total emissions, followed by coastal vessels and river vessels. In terms of ship type, container ship was the leading contributor, followed by conventional cargo ship, dry bulk carrier, fishing ship, and oil tanker. These five ship types accounted for >90% of total emissions. The spatial distributions of emissions revealed that the key emission hot spots all concentrated within the newly proposed emission control area (ECA) and ship emissions within ECA covered >80% of total ship emissions in the PRD, highlighting the importance of ECA in emissions reduction in the PRD. The uncertainties of emission estimates of pollutants were quantified, with lower bounds of -24.5% to -21.2% and upper bounds of 28.6% to 33.3% at 95% confidence intervals. The lower uncertainties in this study highlighted the powerfulness of AIS data in improving ship emission estimates. The AIS-based bottom-up methodology can be used for developing and upgrading ship emission inventory and formulating effective control measures on ship emissions in other port regions wherever possible.
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Affiliation(s)
- Cheng Li
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Zibing Yuan
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Jiamin Ou
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Xiaoli Fan
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Siqi Ye
- Guangdong Environmental Monitoring Center, Modiesha Street, Haizhu District, Guangzhou, 510308, China
| | - Teng Xiao
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Yuqi Shi
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Zhijiong Huang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Simon K W Ng
- Civic Exchange, 23/F, Chun Wo Commercial Centre, 23-29 Wing Wo Street, Central, Hong Kong
| | - Zhuangmin Zhong
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Junyu Zheng
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China.
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Xiao T, Zhu JJ, Huang S, Peng C, He S, Du J, Hong R, Chen X, Bode AM, Jiang W, Dong Z, Zheng D. Phosphorylation of NFAT3 by CDK3 induces cell transformation and promotes tumor growth in skin cancer. Oncogene 2016; 36:2835-2845. [PMID: 27893713 PMCID: PMC5442426 DOI: 10.1038/onc.2016.434] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2016] [Revised: 09/30/2016] [Accepted: 10/04/2016] [Indexed: 12/21/2022]
Abstract
The nuclear factor of activated T cells (NFAT) family proteins are transcription factors that regulate the expression of pro-inflammatory cytokines and other genes during the immune response. Although the NFAT proteins have been extensively investigated in the immune system, their role in cancer progression remains controversial. Here, we report that NFAT3 is highly expressed in various skin cancer cell lines and tumor tissues. Knockdown of endogenous NFAT3 expression by short hairpin RNA (shRNA) significantly inhibited tumor cell proliferation, colony formation and anchorage-independent cell growth. Furthermore, results of the mammalian two-hybrid assay showed that cyclin-dependent kinase 3 (CDK3) directly interacted with NFAT3 and phosphorylated NFAT3 at serine 259 (Ser259), which enhanced the transactivation and transcriptional activity of NFAT3. The phosphorylation site of NFAT3 was critical for epidermal growth factor (EGF)-stimulated cell transformation of the HaCaT immortalized skin cell line and mutation of NFAT3 at Ser259 led to a reduction of colony formation in soft agar. We also found that overexpressing wildtype NFAT3, but not mutant NFAT3-S259A, promoted A431 xenograft tumor growth. Importantly, we showed that CDK3, NFAT3 and phosphorylated NFAT3-Ser259 were highly expressed in skin cancer compared with normal skin tissues. These results provided evidence supporting the oncogenic potential of NFAT3 and suggested that CDK3-mediated phosphorylation of NFAT3 has an important role in skin tumorigenesis.
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Affiliation(s)
- T Xiao
- Shenzhen Key Laboratory of Translational Medicine of Tumor, Department of Cell Biology and Genetics, Shenzhen University Health Sciences Center, Shenzhen, People's Republic of China
| | - J J Zhu
- Shenzhen Key Laboratory of Translational Medicine of Tumor, Department of Cell Biology and Genetics, Shenzhen University Health Sciences Center, Shenzhen, People's Republic of China
| | - S Huang
- Shenzhen Key Laboratory of Translational Medicine of Tumor, Department of Cell Biology and Genetics, Shenzhen University Health Sciences Center, Shenzhen, People's Republic of China
| | - C Peng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - S He
- Shenzhen Key Laboratory of Translational Medicine of Tumor, Department of Cell Biology and Genetics, Shenzhen University Health Sciences Center, Shenzhen, People's Republic of China
| | - J Du
- Shenzhen Key Laboratory of Translational Medicine of Tumor, Department of Cell Biology and Genetics, Shenzhen University Health Sciences Center, Shenzhen, People's Republic of China
| | - R Hong
- Shenzhen Key Laboratory of Translational Medicine of Tumor, Department of Cell Biology and Genetics, Shenzhen University Health Sciences Center, Shenzhen, People's Republic of China
| | - X Chen
- Shenzhen Key Laboratory of Translational Medicine of Tumor, Department of Cell Biology and Genetics, Shenzhen University Health Sciences Center, Shenzhen, People's Republic of China
| | - A M Bode
- Hormel Institute, University of Minnesota, Austin, MN, USA
| | - W Jiang
- Shenzhen Key Laboratory of Translational Medicine of Tumor, Department of Cell Biology and Genetics, Shenzhen University Health Sciences Center, Shenzhen, People's Republic of China
| | - Z Dong
- Hormel Institute, University of Minnesota, Austin, MN, USA
| | - D Zheng
- Shenzhen Key Laboratory of Translational Medicine of Tumor, Department of Cell Biology and Genetics, Shenzhen University Health Sciences Center, Shenzhen, People's Republic of China
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Gonzalez-Cortes S, Slocombe DR, Xiao T, Aldawsari A, Yao B, Kuznetsov VL, Liberti E, Kirkland AI, Alkinani MS, Al-Megren HA, Thomas JM, Edwards PP. Wax: A benign hydrogen-storage material that rapidly releases H 2-rich gases through microwave-assisted catalytic decomposition. Sci Rep 2016; 6:35315. [PMID: 27759014 PMCID: PMC5069496 DOI: 10.1038/srep35315] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 09/28/2016] [Indexed: 11/29/2022] Open
Abstract
Hydrogen is often described as the fuel of the future, especially for application in hydrogen powered fuel-cell vehicles (HFCV's). However, its widespread implementation in this role has been thwarted by the lack of a lightweight, safe, on-board hydrogen storage material. Here we show that benign, readily-available hydrocarbon wax is capable of rapidly releasing large amounts of hydrogen through microwave-assisted catalytic decomposition. This discovery offers a new material and system for safe and efficient hydrogen storage and could facilitate its application in a HFCV. Importantly, hydrogen storage materials made of wax can be manufactured through completely sustainable processes utilizing biomass or other renewable feedstocks.
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Affiliation(s)
- S. Gonzalez-Cortes
- King Abdulaziz City for Science and Technology Centre of Excellence in Petrochemicals, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - D. R. Slocombe
- King Abdulaziz City for Science and Technology Centre of Excellence in Petrochemicals, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
- School of Engineering, Cardiff University, Queen’s Buildings, The Parade, Cardiff, CF24 3AA, UK
| | - T. Xiao
- King Abdulaziz City for Science and Technology Centre of Excellence in Petrochemicals, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - A. Aldawsari
- King Abdulaziz City for Science and Technology Centre of Excellence in Petrochemicals, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - B. Yao
- King Abdulaziz City for Science and Technology Centre of Excellence in Petrochemicals, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - V. L. Kuznetsov
- King Abdulaziz City for Science and Technology Centre of Excellence in Petrochemicals, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - E. Liberti
- Department of Materials, University of Oxford, Holder Building, Parks Road, Oxford, OX1 3PH, UK
| | - A. I. Kirkland
- Department of Materials, University of Oxford, Holder Building, Parks Road, Oxford, OX1 3PH, UK
| | - M. S. Alkinani
- Petrochemical Research Institute, King Abdulaziz City for Science and Technology, P. O. Box 6086, Riyadh 11442, Kingdom of Saudi Arabia
| | - H. A. Al-Megren
- Petrochemical Research Institute, King Abdulaziz City for Science and Technology, P. O. Box 6086, Riyadh 11442, Kingdom of Saudi Arabia
| | - J. M. Thomas
- Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge, CB3 0FS, UK
| | - P. P. Edwards
- King Abdulaziz City for Science and Technology Centre of Excellence in Petrochemicals, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
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Abstract
Starting from easily prepared (R)-C3-isoprenylated pyrroloindoline, the C3-isoprenylated indolyl diketopiperazine is prepared by an efficient reductive opening of the pyrrolo ring, and undergoes biomimetic Diels-Alder reaction to generate an anti-adduct as a sole stereoisomer. Oxidation of the indoline moiety to oxindole completes the synthesis of (-)-depyranoversicolamide B.
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Affiliation(s)
- Wen-Fang Qin
- The Innovative Drug Research Centre, and School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, P. R. China
| | - T Xiao
- The Innovative Drug Research Centre, and School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, P. R. China
| | - D Zhang
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, West China School of Pharmacy, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, P. R. China.
| | - Lin-Feng Deng
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, West China School of Pharmacy, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, P. R. China.
| | - Y Wang
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, West China School of Pharmacy, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, P. R. China.
| | - Y Qin
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education, West China School of Pharmacy, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, P. R. China.
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Liu B, Slocombe D, AlKinany M, AlMegren H, Wang J, Arden J, Vai A, Gonzalez-Cortes S, Xiao T, Kuznetsov V, Edwards PP. Advances in the study of coke formation over zeolite catalysts in the methanol-to-hydrocarbon process. Appl Petrochem Res 2016. [DOI: 10.1007/s13203-016-0156-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Le A, Wang Z, Shan L, Xiao T, Luo G, Shen Y. Analysis of rectal injuries resulting from laparoscopic peritoneal vaginoplasty (Luohu operation). CLIN EXP OBSTET GYN 2016. [DOI: 10.12891/ceog2117.2016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Liu T, Liu X, Xiao T, Shi J. Human recognition memory and conflict control: An event-related potential study. Neuroscience 2016; 313:83-91. [DOI: 10.1016/j.neuroscience.2015.11.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 11/19/2015] [Accepted: 11/20/2015] [Indexed: 11/16/2022]
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45
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Le A, Wang Z, Shan L, Xiao T, Luo G, Shen Y. Analysis of rectal injuries resulting from laparoscopic peritoneal vaginoplasty (Luohu operation). CLIN EXP OBSTET GYN 2016; 43:250-253. [PMID: 27132421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To explore the causes of rectal injuries during laparoscopic peritoneal vaginoplasty (Luohu operation) and assess measures that can be taken to increase safety of the operation. MATERIALS AND METHODS Data of patients with rectal injuries that occurred during Luohu vaginoplasty were analyzed retrospectively. RESULTS Three hundred and six patients received Luohu vaginoplasty. Rectal injuries occurred in 13 patients (4.2%). All patients recovered after intraoperative repair or postoperative rectovaginal fistula repair, performed within three to six months. Full display of the anatomical structures at the bottom of the pelvic cavity and successful construction of the vaginal tunnel are the two most important requirements for reducing the risk of rectal injury in laparoscopic vaginoplasty. In repair of fistulae postoperatively, it is important that resection of tissues or scars around the fistulae be avoided in order to reduce the chance of a injuries caused by diverting colostomy or colostomy closure. CONCLUSION Laparoscopic vaginoplasty is a generally safe procedure, but rectal injury can occur. Retaining the tissues or scars around the rectovaginal fistula can be successfully repaired, either when they are recognized during the operation or within a few months postoperatively.
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Le A, Shan L, Xiao T, Zhuo R, Wang Z. Removal of an incarcerated intrauterine device in the sigmoid colon under the assistance of hysteroscope and laparoscope: a case report. CLIN EXP OBSTET GYN 2015. [DOI: 10.12891/ceog1887.2015] [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: 11/01/2022]
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Xiao T, Fu YF. Resistance training vs. aerobic training and role of other factors on the exercise effects on visceral fat. Eur Rev Med Pharmacol Sci 2015; 19:1779-1784. [PMID: 26044220] [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: 06/04/2023]
Abstract
In the last 25 years, obesity has reached epidemic levels of prevalence. It has even affected the children such that rates of severe childhood obesity that have almost tripled in numbers. These numbers are alarming because of the known fact that obesity is associated with an increased risk of several comorbidities as well as with an increased risk of premature death. Almost since the beginning, exercise has been known to play a key role in the prevention and treatment of overweight and the non-pharmacological treatment of dyslipidemia. However, the effects of exercise on obesity seems to be dynamic and influenced by several other factors. These factors can be related to exercise or to the associated comorbidities. In this review we will address following factors: (1) The type of exercise which could be either aerobic or resistance training (2) The volume or amount of training (3) Intensity of training and (4) The effect of comorbidity of diabetes mellitus. We will observe that all of these factors modify the effect of exercise on the visceral fat.
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Affiliation(s)
- T Xiao
- P.E. Department of ZhengZhou University, ZhengZhou, China.
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Scheider I, Xiao T, Yilmaz E, Schneider G, Huber N, Bargmann S. Damage modeling of small-scale experiments on dental enamel with hierarchical microstructure. Acta Biomater 2015; 15:244-53. [PMID: 25484332 DOI: 10.1016/j.actbio.2014.11.036] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 10/27/2014] [Accepted: 11/18/2014] [Indexed: 11/27/2022]
Abstract
Dental enamel is a highly anisotropic and heterogeneous material, which exhibits an optimal reliability with respect to the various loads occurring over years. In this work, enamel's microstructure of parallel aligned rods of mineral fibers is modeled and mechanical properties are evaluated in terms of strength and toughness with the help of a multiscale modeling method. The established model is validated by comparing it with the stress-strain curves identified by microcantilever beam experiments extracted from these rods. Moreover, in order to gain further insight in the damage-tolerant behavior of enamel, the size of crystallites below which the structure becomes insensitive to flaws is studied by a microstructural finite element model. The assumption regarding the fiber strength is verified by a numerical study leading to accordance of fiber size and flaw tolerance size, and the debonding strength is estimated by optimizing the failure behavior of the microstructure on the hierarchical level above the individual fibers. Based on these well-grounded properties, the material behavior is predicted well by homogenization of a representative unit cell including damage, taking imperfections (like microcracks in the present case) into account.
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Crew KD, Xiao T, Thomas PS, Terry MB, Maurer M, Kalinsky K, Feldman S, Brafman L, Refice SR, Hershman DL. Safety, Feasibility, and Biomarker Effects of High-Dose Vitamin D Supplementation Among Women at High Risk for Breast Cancer. ACTA ACUST UNITED AC 2015; 2015:1-16. [PMID: 28480224 PMCID: PMC5415303 DOI: 10.19070/2326-3350-si01001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Vitamin D deficiency is a potentially modifiable risk factor that may be targeted for breast cancer prevention. We examined the safety, feasibility, and biomarker effects of high-dose vitamin D among women at high risk for breast cancer. Forty high-risk women, defined as a 5-year breast cancer risk ≥1.67% per the Gail model, lobular or ductal carcinoma in situ, were assigned to a 1-year intervention of vitamin D3 20,000 IU or 30,000 IU weekly. Participants were monitored for toxicity every 3 months, underwent serial blood draws at baseline, 6 and 12 months, and a digital mammogram at baseline and 12 months. Biomarker endpoints included serum 25-hydroxyvitamin D [25(OH)D], 1,25-dihydroxyvitamin D [1,25(OH)2D], parathyroid hormone (PTH), insulin-like growth factor (IGF-1), IGF binding protein (IGFBP-3), and mammographic density (MD) using Cumulus software. From November 2007 to January 2011, we enrolled 40 women; 37 were evaluable at 6 months and 30 at 12 months. One patient was taken off study for hypercalciuria; otherwise, the intervention was well tolerated. From baseline to 12 months, mean serum 25(OH)D and 1,25(OH)2D rose from 20.0 to 46.9 ng/ml and 69.7 to 98.1 pg/ml, respectively (p<0.01). Serum PTH decreased by 12% at 6 months and IGF-1/IGFBP-3 ratio decreased by 4.3% at 12 months (p<0.05). There was no significant change in MD regardless of menopausal status or dose level. We demonstrated that 1 year of high-dose vitamin D3 was associated with a significant increase in circulating vitamin D levels and favorable effects on IGF signaling, but no significant change in MD.
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Affiliation(s)
- K D Crew
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY, USA.,Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA.,Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - T Xiao
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - P S Thomas
- Department of Clinical Cancer Prevention, MD Anderson Cancer Center, Houston, TX, USA
| | - M B Terry
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY, USA.,Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - M Maurer
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA.,Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - K Kalinsky
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA.,Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - S Feldman
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA.,Department of Surgery, College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - L Brafman
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - S R Refice
- Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
| | - D L Hershman
- Department of Medicine, College of Physicians and Surgeons, Columbia University, New York, NY, USA.,Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA.,Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY, USA
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Qu H, Zhao M, Zhao S, Xiao T, Song C, Cao Y, Jolkkonen J, Zhao C. Forced limb-use enhanced neurogenesis and behavioral recovery after stroke in the aged rats. Neuroscience 2015; 286:316-24. [DOI: 10.1016/j.neuroscience.2014.11.040] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 10/21/2014] [Accepted: 11/10/2014] [Indexed: 11/25/2022]
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