1
|
Dong G, Wu J, Hong Y, Li Q, Liu M, Jiang G, Bao D, Manor B, Zhou J. Inhalation of hydrogen-rich gas before acute exercise alleviates exercise fatigue. Int J Sports Med 2024. [PMID: 38698624 DOI: 10.1055/a-2318-1880] [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: 05/05/2024]
Abstract
Hydrogen, as an antioxidant, may have the potential to mitigate fatigue and improve selected oxidative stress markers induced by strenuous exercise. This study focused on previously unexplored approach of pre-exercise inhalation of hydrogen-rich gas (HRG). Twenty-four healthy adult men first completed prelaboratories to determine maximum cycling power (Wmax) and maximum cycling time (Tmax). Then they were subjected to ride Tmax at 80% Wmax on cycle ergometers after inhaled HRG or placebo gas (air) for 60-minute in a double-blind, counterbalanced, randomized, and crossover design. The cycling frequency in the fatigue modelling process and the rating of perceived exertion (RPE) at the beginning and end of the ride were recorded. Before gas inhalation and after fatigue modeling, visual analog scale (VAS) for fatigue and counter-movement jump (CMJ) were tested, and blood samples were obtained. The results showed that compared to placebo, HRG inhalation induced significant improvement in VAS, RPE, the cycling frequency in the last 30 seconds, the ability to inhibit hydroxyl radicals, and serum lactate after exercise (p < 0.028), but not in CMJ height and glutathione peroxidase activit. In conclusions, HRG inhalation prior to acute exercise can alleviate exercise-induced fatigue, maintain functional performance, and improve hydroxyl radical and lactate levels.
Collapse
Affiliation(s)
- Gengxin Dong
- school of sports medicine and rehabilitation, Beijing Sport University, beijing, China
| | - Jianxin Wu
- Ministry of Sports, Tsinghua University, Beijing, China
| | - Yinglu Hong
- school of sports medicine and rehabilitation, Beijing Sport University, Beijing, China
| | - Qian Li
- Sports Coaching College, Beijing Sport University, Beijing, China
| | - Meng Liu
- Sports Coaching College, Beijing Sport University, Beijing, China
| | - Guole Jiang
- Sports Coaching College, Beijing Sport University, Beijing, China
| | - Dapeng Bao
- China Institute of Sport and Health Science, Beijing Sport University, Beijing, China
| | - Brad Manor
- Hebrew Senior Life Hinda and Arthur Marcus Institute for Aging Research, Harvard Medical School, Boston, United States
| | - Junhong Zhou
- Hebrew Senior Life Hinda and Arthur Marcus Institute for Aging Research, Harvard Medical School, BOSTON, United States
| |
Collapse
|
2
|
Zhang X, Wang C, Sun Q, Wu J, Dai Y, Li E, Wu J, Chen H, Duan S, Hu W. Inorganic Halide Perovskite Nanowires/Conjugated Polymer Heterojunction-Based Optoelectronic Synaptic Transistors for Dynamic Machine Vision. Nano Lett 2024; 24:4132-4140. [PMID: 38534013 DOI: 10.1021/acs.nanolett.3c05092] [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] [Indexed: 03/28/2024]
Abstract
Inspired by the retina, artificial optoelectronic synapses have groundbreaking potential for machine vision. The field-effect transistor is a crucial platform for optoelectronic synapses that is highly sensitive to external stimuli and can modulate conductivity. On the basis of the decent optical absorption, perovskite materials have been widely employed for constructing optoelectronic synaptic transistors. However, the reported optoelectronic synaptic transistors focus on the static processing of independent stimuli at different moments, while the natural visual information consists of temporal signals. Here, we report CsPbBrI2 nanowire-based optoelectronic synaptic transistors to study the dynamic responses of artificial synaptic transistors to time-varying visual information for the first time. Moreover, on the basis of the dynamic synaptic behavior, a hardware system with an accuracy of 85% is built to the trajectory of moving objects. This work offers a new way to develop artificial optoelectronic synapses for the construction of dynamic machine vision systems.
Collapse
Affiliation(s)
- Xianghong Zhang
- Institute of Optoelectronic Display, National & Local United Engineering Lab of Flat Panel Display Technology, Fuzhou University, Fuzhou 350002, China
- Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and Perception, Institute of Optoelectronics, Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Congyong Wang
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
- Department of Chemistry, National University of Singapore, 3 Science Drive, Singapore 117543
| | - Qisheng Sun
- China Electronics Technology Group Corp 46th Research Institute, 26 Dongting Road, Tianjin 300220, P. R. China
| | - Jianxin Wu
- Institute of Optoelectronic Display, National & Local United Engineering Lab of Flat Panel Display Technology, Fuzhou University, Fuzhou 350002, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350100, China
| | - Yan Dai
- Institute of Optoelectronic Display, National & Local United Engineering Lab of Flat Panel Display Technology, Fuzhou University, Fuzhou 350002, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350100, China
| | - Enlong Li
- Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and Perception, Institute of Optoelectronics, Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Jishan Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive, Singapore 117543
| | - Huipeng Chen
- Institute of Optoelectronic Display, National & Local United Engineering Lab of Flat Panel Display Technology, Fuzhou University, Fuzhou 350002, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350100, China
| | - Shuming Duan
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
| | - Wenping Hu
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
- Key Laboratory of Organic Integrated Circuits, Ministry of Education & Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| |
Collapse
|
3
|
Zhao M, Chen GG, Zhang HL, Li QR, Zhou LY, Li Y, Yang J, Wu JX, Li YL, Huangfu H. [Development and validation of a persistent postural-perceptual dizziness screening questionnaire]. Zhonghua Yi Xue Za Zhi 2024; 104:1143-1148. [PMID: 38583044 DOI: 10.3760/cma.j.cn112137-20231111-01067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/08/2024]
Abstract
Objective: To develop a simple screening questionnaire for persistent postural-perceptual dizziness (PPPD) and evaluate its screening ability. Methods: A convenience sample of 296 individuals who met the inclusion criteria between November 2021 and January 2023 were prospectively selected for three rounds of screening at the Vertigo Specialty Clinic of the Department of Otorhinolaryngology-Head and Neck Surgery in the First Hospital of Shanxi Medical University. In conjunction with expert opinion and statistical analysis, the first and second rounds of screening were used to modify and finalize the questionnaire entries, and the third round of screening was used to evaluate the questionnaire's screening ability. Independent sample t-test was used for inter group comparison, reliability and validity indicators were employed to screen and evaluate questionnaire entries, and the receiver operating characteristic (ROC) curve was plotted to determine the optimal cut-off value and corresponding sensitivity and specificity. Results: The final PPPD screening questionnaire entries included 21 items. In evaluating the reliability of this questionnaire, the Cronbach's alpha coefficient was 0.831, the half folding coefficient was 0.742, the content validity was 0.86, and the Kaiser-Meyer-Olkin (KMO) value in the structural validity was 0.811. Additionally, there were six factors with characteristic root>1 and a cumulative contribution rate of 62.62%. The area under the ROC curve of the screening questionnaire was 0.935 (95%CI: 0.877-0.992), and the optimal cut-off value was 8.5, with a sensitivity of 85.0%, a specificity of 85.5%, and a Kappa value of 0.653. Conclusion: The PPPD simple screening questionnaire designed in this study has a high sensitivity and specificity, making it a useful tool for identifying PPPD patients.
Collapse
Affiliation(s)
- M Zhao
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - G G Chen
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - H L Zhang
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Q R Li
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - L Y Zhou
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Y Li
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J Yang
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J X Wu
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Y L Li
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - H Huangfu
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| |
Collapse
|
4
|
Qian P, Wang S, Zhang T, Wu J. Transcriptional Expression of Histone Acetyltransferases and Deacetylases During the Recovery of Acute Exercise in Mouse Hippocampus. J Mol Neurosci 2024; 74:34. [PMID: 38565829 DOI: 10.1007/s12031-024-02215-5] [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: 11/06/2023] [Accepted: 03/21/2024] [Indexed: 04/04/2024]
Abstract
Protein acetylation, which is dynamically maintained by histone acetyltransferases (HATs) and deacetylases (HDACs), might play essential roles in hippocampal exercise physiology. However, whether HATs/HDACs are imbalanced during the recovery phase following acute exercise has not been determined. Groups of exercised mice with different recovery periods after acute exercise (0 h, 0.5 h, 1 h, 4 h, 7 h, and 24 h) were constructed, and a group of sham-exercised mice was used as the control. The mRNA levels of HATs and HDACs were detected via real-time quantitative polymerase chain reaction. Lysine acetylation on the total proteins and some specific locations on histones were detected via western blotting, as were various acylation modifications on the total proteins. Except for four unaffected genes (Hdac4, Ncoa1, Ncoa2, and Sirt1), the mRNA expression trajectories of 21 other HATs or HDACs affected by exercise could be categorized into three clusters. The genes in Cluster 1 increased quickly following exercise, with a peak at 0.5 h and/or 1 h, and remained at high levels until 24 h. Cluster 2 genes presented a gradual increase with a delayed peak at 4 h or 7 h postexercise before returning to baseline. The expression of Cluster 3 genes decreased at 0.5 h and/or 1 h, with some returning to overexpression (Hdac1 and Sirt3). Although most HATs were upregulated and half of the affected HDACs were downregulated at 0.5 h postexercise, the global or residue-specific histone acetylation levels were unchanged. In contrast, the levels of several metabolism-related acylation products of total proteins, including acetylation, succinylation, 2-hydroxyisobutyryllysine, β-hydroxybutyryllysine, and lactylation, decreased and mainly occurred on nonhistones immediately after exercise. During the 24-h recovery phase after acute exercise, the transcriptional trajectory of HATs or the same class of HDACs in the hippocampus exhibited heterogeneity. Although acute exercise did not affect the selected sites on histone lysine residues, it possibly incurred changes in acetylation and other acylation on nonhistone proteins.
Collapse
Affiliation(s)
- Ping Qian
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, 100020, China
- Department of Internal Medicine, Affiliated Children Hospital of Capital Institute of Pediatrics, Beijing, 100020, China
| | - Shan Wang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, 100020, China
| | - Ting Zhang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, 100020, China.
| | - Jianxin Wu
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, 100020, China.
- Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China.
| |
Collapse
|
5
|
Huang X, Li Y, Chang Z, Yan W, Xu C, Zhang B, He Z, Wang C, Zheng M, Li Z, Xia J, Li G, Tang X, Wu J. Regulation by distinct MYB transcription factors defines the roles of OsCYP86A9 in anther development and root suberin deposition. Plant J 2024. [PMID: 38506334 DOI: 10.1111/tpj.16722] [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] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/01/2024] [Indexed: 03/21/2024]
Abstract
Cytochrome P450 proteins (CYPs) play critical roles in plant development and adaptation to fluctuating environments. Previous reports have shown that CYP86A proteins are involved in the biosynthesis of suberin and cutin in Arabidopsis. However, the functions of these proteins in rice remain obscure. In this study, a rice mutant with incomplete male sterility was identified. Cytological analyses revealed that this mutant was defective in anther development. Cloning of the mutant gene indicated that the responsible mutation was on OsCYP86A9. OsMYB80 is a core transcription factor in the regulation of rice anther development. The expression of OsCYP86A9 was abolished in the anther of osmyb80 mutant. In vivo and in vitro experiments showed that OsMYB80 binds to the MYB-binding motifs in OsCYP86A9 promoter region and regulates its expression. Furthermore, the oscyp86a9 mutant exhibited an impaired suberin deposition in the root, and was more susceptible to drought stress. Interestingly, genetic and biochemical analyses revealed that OsCYP86A9 expression was regulated in the root by certain MYB transcription factors other than OsMYB80. Moreover, mutations in the MYB genes that regulate OsCYP86A9 expression in the root did not impair the male fertility of the plant. Taken together, these findings revealed the critical roles of OsCYP86A9 in plant development and proposed that OsCYP86A9 functions in anther development and root suberin formation via two distinct tissue-specific regulatory pathways.
Collapse
Affiliation(s)
- Xiaoyan Huang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Yiqi Li
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Zhenyi Chang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Wei Yan
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Chunjue Xu
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China
- Shenzhen Institute of Molecular Crop Design, Shenzhen, 518107, China
| | - Baolei Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning, 530004, China
| | - Zhaohuan He
- Key Laboratory of Plant Nutrition and Fertilizer in South Region, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Nutrient Cycling and Farmland Conservation, Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong, 510640, China
| | - Changjian Wang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Minting Zheng
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Zhiai Li
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Jixing Xia
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning, 530004, China
| | - Guoliang Li
- Key Laboratory of Plant Nutrition and Fertilizer in South Region, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Nutrient Cycling and Farmland Conservation, Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong, 510640, China
| | - Xiaoyan Tang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China
- Shenzhen Institute of Molecular Crop Design, Shenzhen, 518107, China
| | - Jianxin Wu
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| |
Collapse
|
6
|
Zhang Y, Wu JX, Wang Y, Yuan HS. [The application of setting tube voltage and iodine delivery rate in weight-grouped for reducing the radiation and contrast medium dose in coronary CT angiography]. Zhonghua Yi Xue Za Zhi 2024; 104:751-757. [PMID: 38462355 DOI: 10.3760/cma.j.cn112137-20230728-01109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Objective: To evaluate the application value of reducing tube voltage and iodine delivery rate according to body weight in coronary CT angiography (CCTA). Methods: A prospective randomized controlled study. A total of 297 subjects, 172 males and 125 females, aged [M (Q1, Q3)]60.0 (50.0, 68.0) years, who underwent CCTA examination in Peking University Third Hospital due to clinically suspected coronary heart disease from May to December 2022 were included. According to the odd or even visit dates, the subjects were randomly divided into test group (n=156) and control group (n=141). The subjects in both groups were divided into four sub-groups according to body weight: 50-59 group, 60-69 kg group, 70-79 kg group and 80-89 kg group, respectively. The CCTA images were reconstructed with hybrid iterative algorithm(KARL 3D) with levels of 6 and 8, respectively. 100 kVp and iodine flow rate 1.1, 1.3, 1.4 and 1.5 gI/s recommended by the domestic CCTA application guidelines were used in the control group, while the tube voltage and iodine flow rate were reduced in the test group based on the guidelines and body weight:70 kVp and 0.8 g I/s in 50~59 kg group, 80 kVp and 1.0 gI/s in 60~69 kg group, 80 kVp and 1.1 gI/s in70~79 kg group, and 100 kVp and 1.5 gI/s in 80~89 kg group, respectively. The CT values and standard deviation (SD) of aortic root, proximal left anterior descending branch (LAD) and distal right coronary artery (RCA) luminal CCTA, the signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) of coronary artery CT images, subjective coronary scores and effective radiation dose (ED) were compared between the both groups. One-way ANOVA or Wilcoxon test was used to analyze the differences of above indicators between the groups to evaluate the application value of low voltage and low iodine flow rate based on weight in coronary CCTA. Results: CT values of aortic root, LAD proximal CT values and SD values of aortic root [411.4 (377.2, 439.8) HU, (366.3±42.9) HU, 26.5±2.3] in the test group were all higher than those in the control group [379.00 (335.2, 415.9) HU, (355.0±46.9) HU and 24.8±2.3]. The differences were statistically significant (all P<0.05), and the other parameters were not statistically significant (all P>0.05). The total subjective image quality score in test group were superior to those in the control group (all P<0.05). The total ED and contrast agent dosage [2.07 (1.52, 3.28) mSv and (38.28±9.68) ml] in CCTA examination in the test group were lower than those in the control group [3.30(2.32, 4.44) mSv and (45.31±5.63) ml], and the differences were statistically significant (all P<0.05). The dosage of ED and contrast agent in the test group was decreased by 37.3% and 15.5%, respectively. Conclusion: Combined with KARL 3D,it is feasible to reduce contrast medium and ED by setting the tube voltage and iodine flow rate of CCTA according to the weight of the subject, which can further reduce the radiation dose and contrast agent dosage of CCTA.
Collapse
Affiliation(s)
- Y Zhang
- Department of Radiology,Peking University Third Hospital,Beijing 100191,China
| | - J X Wu
- Department of Radiology,Peking University Third Hospital,Beijing 100191,China
| | - Y Wang
- Department of Radiology,Peking University Third Hospital,Beijing 100191,China
| | - H S Yuan
- Department of Radiology,Peking University Third Hospital,Beijing 100191,China
| |
Collapse
|
7
|
Wang X, Yuan S, Wang C, Yan W, Xie G, Wang C, Qiu S, Wu J, Deng XW, Xu C, Tang X. Construction of a Female Sterility Maintaining System Based on a Novel Mutation of the MEL2 Gene. Rice (N Y) 2024; 17:12. [PMID: 38310612 PMCID: PMC10838886 DOI: 10.1186/s12284-024-00688-x] [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] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Accepted: 01/19/2024] [Indexed: 02/06/2024]
Abstract
BACKGROUND Hybrid rice has significant yield advantage and stress tolerance compared with inbred rice. However, production of hybrid rice seeds requires extensive manual labors. Currently, hybrid rice seeds are produced by crosspollination of male sterile lines by fertile paternal lines. Because seeds from paternal lines can contaminate the hybrid seeds, mechanized production by mixed-seeding and mixed-harvesting is difficult. This problem can be solved if the paternal line is female sterile. RESULTS Here we identified a female infertile mutant named h569 carrying a novel mutation (A1106G) in the MEL2 gene that was previously reported to regulate meiosis entry both in male and female organs. h569 mutant is female infertile but male normal, suggesting that MEL2 regulates meiosis entry in male and female organs through distinct pathways. The MEL2 gene and h569 mutant gave us tools to construct female sterility maintaining systems that can be used for propagation of female sterile lines. We connected the wild-type MEL2 gene with pollen-killer gene ZmAA1 and seed-marker gene DsRed2 in one T-DNA cassette and transformed it into ZZH1607, a widely used restorer line. Transgenic line carrying a single transgene inserted in an intergenic region was selected to cross with h569 mutant. F2 progeny carrying homozygous A1106G mutation and hemizygous transgene displayed 1:1 segregation of fertile and infertile pollen grains and 1:1 segregation of fluorescent and non-fluorescent seeds upon self-fertilization. All of the non-fluorescent seeds generated female infertile plants, while the fluorescent seeds generated fertile plants that reproduced in the way as their previous generation. CONCLUSIONS These results indicated that the female sterility maintaining system constructed in the study can be used to breed and propagate paternal lines that are female infertile. The application of this system will enable mechanized production of hybrid rice seed by using the mixed-seeding and mixed harvesting approach, which will significantly reduce the cost in hybrid rice seed production.
Collapse
Affiliation(s)
- Xia Wang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, 510631, Guangzhou, China
| | - Shuting Yuan
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, 510631, Guangzhou, China
- Shenzhen Institute of Molecular Crop Design, 518107, Shenzhen, China
| | - Changjian Wang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, 510631, Guangzhou, China
| | - Wei Yan
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, 510631, Guangzhou, China
| | - Gang Xie
- Shenzhen Institute of Molecular Crop Design, 518107, Shenzhen, China
| | - Cuifang Wang
- Shenzhen Institute of Molecular Crop Design, 518107, Shenzhen, China
| | - Shijun Qiu
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, 510631, Guangzhou, China
| | - Jianxin Wu
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, 510631, Guangzhou, China
| | - Xing Wang Deng
- Shenzhen Institute of Molecular Crop Design, 518107, Shenzhen, China.
- School of Advanced Agricultural Sciences, Peking University, 100871, Beijing, China.
| | - Chunjue Xu
- Shenzhen Institute of Molecular Crop Design, 518107, Shenzhen, China.
| | - Xiaoyan Tang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, 510631, Guangzhou, China.
- Shenzhen Institute of Molecular Crop Design, 518107, Shenzhen, China.
| |
Collapse
|
8
|
Qiao Q, Chen GG, Yang J, Wu JX, Zhou LY, Li Y. [Design and evaluation of the dizziness/vertigo disease screening questionnaire]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2024; 59:57-63. [PMID: 38246762 DOI: 10.3760/cma.j.cn115330-20230904-00075] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Affiliation(s)
- Q Qiao
- Department of Otorhinolaryngology Head and Neck Surgery, First Affiliated Hospital of Air Force Military Medical University, Xi'an 710032, China
| | - G G Chen
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J Yang
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J X Wu
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - L Y Zhou
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Y Li
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| |
Collapse
|
9
|
He F, Liu Z, Feng M, Xiao Z, Yi X, Wu J, Liu Z, Wang G, Li L, Yao H. The lncRNA MEG3/miRNA-21/P38MAPK axis inhibits coxsackievirus 3 replication in acute viral myocarditis. Virus Res 2024; 339:199250. [PMID: 37865350 PMCID: PMC10643532 DOI: 10.1016/j.virusres.2023.199250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 10/08/2023] [Accepted: 10/18/2023] [Indexed: 10/23/2023]
Abstract
Evidence is emerging on the roles of long noncoding RNAs (lncRNAs) as regulatory factors in a variety of viral infection processes, but the mechanisms underlying their functions in coxsackievirus group B type3 (CVB3)-induced acute viral myocarditis have not been explicitly delineated. We previously demonstrated that CVB3 infection decreases miRNA-21 expression; however, lncRNAs that regulate the miRNA-21-dependent CVB3 disease process have yet to be identified. To evaluate lncRNAs upstream of miRNA-21, differentially expressed lncRNAs in CVB3-infected mouse hearts were identified by microarray analysis and lncRNA/miRNA-21 interactions were predicted bioinformatically. MEG3 was identified as a candidate miRNA-21-interacting lncRNA upregulated in CVB3-infected mouse hearts. MEG3 expression was verified to be upregulated in HeLa cells 48 h post CVB3 infection and to act as a competitive endogenous RNA of miRNA-21. MEG3 knockdown resulted in the upregulation of miRNA-21, which inhibited CVB3 replication by attenuating P38-MAPK signaling in vitro and in vivo. Knockdown of MEG3 expression before CVB3 infection inhibited viral replication in mouse hearts and alleviated cardiac injury, which improved survival. Furthermore, the knockdown of CREB5, which was predicted bioinformatically to function upstream of MEG3, was demonstrated to decrease MEG3 expression and CVB3 viral replication. This study identifies the function of the lncRNA MEG3/miRNA-21/P38 MAPK axis in the process of CVB3 replication, for which CREB5 could serve as an upstream modulator.
Collapse
Affiliation(s)
- Feng He
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, YaBaoRoad 2, Beijing, China
| | - Zhuo Liu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, YaBaoRoad 2, Beijing, China
| | - Miao Feng
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, YaBaoRoad 2, Beijing, China
| | - Zonghui Xiao
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, YaBaoRoad 2, Beijing, China
| | - Xiaoyu Yi
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, YaBaoRoad 2, Beijing, China
| | - Jianxin Wu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, YaBaoRoad 2, Beijing, China; Beijing Municipal Key Laboratory of Child Development and Nutriomics, Beijing, China; Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Zhewei Liu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, YaBaoRoad 2, Beijing, China
| | - Gaoyu Wang
- NHC Key Laboratory of Tropical Disease Control, Hainan Medical University, Haikou, China
| | - Le Li
- NHC Key Laboratory of Tropical Disease Control, Hainan Medical University, Haikou, China.
| | - Hailan Yao
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, YaBaoRoad 2, Beijing, China.
| |
Collapse
|
10
|
He S, Li H, Chi B, Zhang X, Wang Y, Wu J, Huang Q. Construction of a dual-component hydrogel matrix for 3D biomimetic skin based on photo-crosslinked chondroitin sulfate/collagen. Int J Biol Macromol 2024; 254:127940. [PMID: 37951430 DOI: 10.1016/j.ijbiomac.2023.127940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 10/15/2023] [Accepted: 10/27/2023] [Indexed: 11/14/2023]
Abstract
The main challenge in the field of 3D biomimetic skin is to search for a suitable hydrogel matrix with good biocompatibility, appropriate mechanical property and inner porosity that can support the adhesion and proliferation of skin cells. In this study, photocurable chondroitin sulfate methacrylate (CSMA) and collagen methacrylate (CoLMA) synthesized from chondroitin sulfate (CS) and type I collagen I (CoL) in the dermal matrix were used to construct a photo-crosslinked dual-component CSMA-CoLMA hydrogel matrix. Due to the toughening effect of the dual-component, the CSMA-CoLMA hydrogel improved the intrinsic brittleness of the single-component CSMA hydrogel, presented good mechanical tunability. The average storage and elasticity modulus could reach 3.3 KPa and 30.3 KPa, respectively, which were close to those of natural skin. The CSMA-CoLMA hydrogel with a ratio of 8/6 showed suitable porous structure and good biocompatibility, supporting the adhesion and proliferation of skin cells. Furthermore, the expression of characteristic marker proteins was detected in the epidermal and dermal bi-layered models constructed with the hydrogel containing keratinocytes and fibroblasts. These results suggest that the dual-component CSMA-CoLMA hydrogel has promising potential as a matrix to construct 3D biomimetic skin.
Collapse
Affiliation(s)
- Shengsheng He
- Center of Skin Health and Cosmetic Development & Evaluation, China Pharmaceutical University, Nanjing 210009, China
| | - Huijuan Li
- College of Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
| | - Baiyi Chi
- Center of Skin Health and Cosmetic Development & Evaluation, China Pharmaceutical University, Nanjing 210009, China
| | - Xingjiang Zhang
- Center of Skin Health and Cosmetic Development & Evaluation, China Pharmaceutical University, Nanjing 210009, China
| | - Yuzhe Wang
- Center of Skin Health and Cosmetic Development & Evaluation, China Pharmaceutical University, Nanjing 210009, China
| | - Jianxin Wu
- Center of Skin Health and Cosmetic Development & Evaluation, China Pharmaceutical University, Nanjing 210009, China
| | - Qing Huang
- Center of Skin Health and Cosmetic Development & Evaluation, China Pharmaceutical University, Nanjing 210009, China.
| |
Collapse
|
11
|
Ai Y, Dai F, Li W, Xu F, Yang H, Wu J, Yang K, Li L, Ai F, Song L. Photo-crosslinked bioactive BG/BMSCs@GelMA hydrogels for bone-defect repairs. Mater Today Bio 2023; 23:100882. [PMID: 38161508 PMCID: PMC10755535 DOI: 10.1016/j.mtbio.2023.100882] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/05/2023] [Accepted: 11/22/2023] [Indexed: 01/03/2024] Open
Abstract
The clinical treatments of bone defects remain a challenge. Hydrogels containing bone marrow mesenchymal stem cells (BMSCs) are extensively used to bone regeneration because of excellent biocompatibility and hydrophilicity. However, the insufficient osteo-induction capacity of the BMSC-loaded hydrogels limits their clinical applications. In this study, bio-active glass (BG) and BMSCs were combined with gelatin methacryloyl (GelMA) to fabricate composite hydrogels via photo-crosslinking, and the regulation of bone regeneration was investigated. In vitro experiments showed that the BG/BMSCs@GelMA hydrogel had excellent cytocompatibility and promoted osteogenic differentiation in BMSCs. Furthermore, the BG/BMSCs@GelMA hydrogel was injected into critical-sized calvarial defects, and the results further confirmed its excellent angiogenetic and bone regeneration capacity. In addition, BG/BMSCs@GelMA promoted the polarization of macrophages towards the M2 phenotype. In summary, this novel composite hydrogel demonstrated remarkable potential for application in bone regeneration due to its immunomodulatory, excellent angiogenetic as well as osteo-induction capacity.
Collapse
Affiliation(s)
- Yufeng Ai
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
- The Second Clinical Medical School, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Fang Dai
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
| | - Wenfeng Li
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
| | - Fancheng Xu
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
- The Second Clinical Medical School, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Hanwen Yang
- The Second Clinical Medical School, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Jianxin Wu
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
- The Second Clinical Medical School, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Kaiqiang Yang
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
- The Second Clinical Medical School, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Li Li
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
- The Second Clinical Medical School, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Fanrong Ai
- School of Advanced Manufacturing, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Li Song
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
| |
Collapse
|
12
|
Liu X, Wu J, Tang Z, Wu J, Huang Z, Yin X, Du J, Lin X, Lin W, Yi G. Correction to "Photoreversible Bond-Based Shape Memory Polyurethanes with Light-Induced Self-Healing, Recyclability, and 3D Fluorescence Encryption". ACS Appl Mater Interfaces 2023. [PMID: 37924322 DOI: 10.1021/acsami.3c14883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2023]
|
13
|
Ma F, Cao D, Liu Z, Li Y, Ouyang S, Wu J. Identification of novel circulating miRNAs biomarkers for healthy obese and lean children. BMC Endocr Disord 2023; 23:238. [PMID: 37904219 PMCID: PMC10614305 DOI: 10.1186/s12902-023-01498-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 10/25/2023] [Indexed: 11/01/2023] Open
Abstract
BACKGROUND The prevalence of childhood obesity and overweight has risen globally, leading to increased rates of metabolic disorders. Various factors, including genetic, epigenetic, and environmental influences such as diet and physical activity, contribute to pediatric obesity. This study aimed to identify specific circulating miRNAs as potential biomarkers for assessing obesity in children. METHODS Thirty children, including 15 obese and 15 extremely thin individuals, were selected for this study. MiRNA expression in circulating plasma was assessed using miRNA microarrays. The reliability of differential miRNA expression was confirmed using TaqMan qPCR. The correlation between miRNAs and obesity was analyzed through multiple linear regression, receiver operator characteristic (ROC) curve analysis, and odds ratio (OR) calculations. Bioinformatics tools were utilized to identify target genes for the selected miRNAs, and a functional network map was constructed. RESULTS A total of 36 differentially expressed miRNAs were identified through gene chip analysis, and TaqMan qPCR validation confirmed the upregulation of seven miRNAs: hsa-miR-126-3p, hsa-miR-15b-5p, hsa-miR-199a-3p, hsa-miR-20a-5p, hsa-miR-223-3p, hsa-miR-23a-3p, and hsa-miR-24-3p. Among these, hsa-miR-15b-5p and hsa-miR-223-3p exhibited a statistically significant difference except for hsa-miR-23a-3p. These two miRNAs showed more predicted target genes related to obesity than others. Multiple linear regression analysis revealed an association between obesity and hsa-miR-15b-5p and hsa-miR-223-3p [10.529 (4.974-16.084), -10.225 (-17.852~ -2.657)]. Even after adjusting for age and sex, these two miRNAs remained associated with obesity [8.936 (3.572-14.301), -8.449(-15.634~ -1.303)]. The area under the ROC curve (AUC) reached values of 0.816, 0.711, and 0.929, respectively. Odds ratio analysis demonstrated a significant correlation between obesity and hsa-miR-15b-5p (OR = 143, 95% CI 5.80 to 56,313, p = 0.024) and between obesity and hsa-miR-223-3p (OR = 0.01, 95% CI 0.00 to 0.23, p = 0.037). Importantly, hsa-miR-15b-5p was found to have numerous target genes associated with the FoxO, insulin, Ras, and AMPK signaling pathways. CONCLUSIONS Differential miRNA expression profiles in the circulation of obese children compared to controls suggest underlying metabolic abnormalities. Hsa-miR-15b-5p and hsa-miR-223-3p may be considered as molecular markers for the screening of obese children and populations at risk of developing metabolic syndrome.
Collapse
Affiliation(s)
- Feifei Ma
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, 2 Yabao street, Beijing, 100020, People's Republic of China
- Institute of Basic Medical Sciences, School of Basic Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, 5 Dongdansantiao, Beijing, 100005, People's Republic of China
| | - Dingding Cao
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, 2 Yabao street, Beijing, 100020, People's Republic of China
| | - Zhuo Liu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, 2 Yabao street, Beijing, 100020, People's Republic of China
| | - Yuanyuan Li
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, 2 Yabao street, Beijing, 100020, People's Republic of China
| | - Shengrong Ouyang
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, 2 Yabao street, Beijing, 100020, People's Republic of China.
| | - Jianxin Wu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, 2 Yabao street, Beijing, 100020, People's Republic of China.
- Beijing TongRen Hospital, Capital Medical University, 17 Hougou Street, Chong Wen Men, Beijing, 100730, People's Republic of China.
| |
Collapse
|
14
|
Chang Z, Wang X, Pan X, Yan W, Wu W, Zhuang Y, Li Z, Wang D, Yuan S, Xu C, Chen Z, Liu D, Chen ZS, Tang X, Wu J. The ribosomal protein P0A is required for embryo development in rice. BMC Plant Biol 2023; 23:465. [PMID: 37798654 PMCID: PMC10552409 DOI: 10.1186/s12870-023-04445-y] [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] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 09/06/2023] [Indexed: 10/07/2023]
Abstract
BACKGROUND The P-stalk is a conserved and vital structural element of ribosome. The eukaryotic P-stalk exists as a P0-(P1-P2)2 pentameric complex, in which P0 function as a base structure for incorporating the stalk onto 60S pre-ribosome. Prior studies have suggested that P0 genes are indispensable for survival in yeast and animals. However, the functions of P0 genes in plants remain elusive. RESULTS In the present study, we show that rice has three P0 genes predicted to encode highly conserved proteins OsP0A, OsP0B and OsP0C. All of these P0 proteins were localized both in cytoplasm and nucleus, and all interacted with OsP1. Intriguingly, the transcripts of OsP0A presented more than 90% of the total P0 transcripts. Moreover, knockout of OsP0A led to embryo lethality, while single or double knockout of OsP0B and OsP0C did not show any visible defects in rice. The genomic DNA of OsP0A could well complement the lethal phenotypes of osp0a mutant. Finally, sequence and syntenic analyses revealed that OsP0C evolved from OsP0A, and that duplication of genomic fragment harboring OsP0C further gave birth to OsP0B, and both of these duplication events might happen prior to the differentiation of indica and japonica subspecies in rice ancestor. CONCLUSION These data suggested that OsP0A functions as the predominant P0 gene, playing an essential role in embryo development in rice. Our findings highlighted the importance of P0 genes in plant development.
Collapse
Affiliation(s)
- Zhenyi Chang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Xia Wang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Xiaoying Pan
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Wei Yan
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Wenshi Wu
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Yi Zhuang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Zhiai Li
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Dan Wang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Shuting Yuan
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China
| | - Chunjue Xu
- Shenzhen Institute of Molecular Crop Design, Shenzhen, 518107, China
| | - Zhufeng Chen
- Shenzhen Institute of Molecular Crop Design, Shenzhen, 518107, China
| | - Dongfeng Liu
- Shenzhen Agricultural Technology Promotion Center, Shenzhen, 518055, China
| | - Zi Sheng Chen
- Shenzhen Agricultural Technology Promotion Center, Shenzhen, 518055, China.
| | - Xiaoyan Tang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China.
- Shenzhen Institute of Molecular Crop Design, Shenzhen, 518107, China.
| | - Jianxin Wu
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, 510631, China.
| |
Collapse
|
15
|
Hao J, Liu Z, Ju W, He F, Liu K, Wu J. Role and mechanism of FLT4 in high-fat diet-induced obesity in mice. Biochem Biophys Res Commun 2023; 675:61-70. [PMID: 37451219 DOI: 10.1016/j.bbrc.2023.06.025] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/01/2023] [Accepted: 06/06/2023] [Indexed: 07/18/2023]
Abstract
The FLT4 gene plays an important role in the onset and progression of obesity and is involved in the structure and function of lymphatic vessels. By inducing a mouse obesity model with a high-fat diet and knocking out the FLT4 gene, which is associated with lymphatic vessel growth in mice, FLT4+/- mice were found to be susceptible to high-fat diet-induced obesity, with significant accumulation of visceral fat. BODIPY™ FL C16 imaging revealed dilated and branched mesenteric lymphatic vessels in FLT4+/- mice. Immunofluorescence staining showed that FLT4+/- exacerbated the morphological abnormalities of lymphatic vessels and submucosal lymphatic vessels in visceral adipose tissue of obese mice, accompanied by macrophage infiltration around lymphatic vessels. In addition, FLT4 knock down increased the proportion of M1-type macrophages in the adipose tissue of the epididymis, indicating significant chronic inflammation in FLT4+/- obese mice. These findings provide new evidence for the involvement of lymphatic vessel morphological abnormalities in the onset and progression of obesity and highlight the importance of further investigation of FLT4 to better understand the mechanism of HFD-induced obesity and to develop related treatments.
Collapse
Affiliation(s)
- Jingyi Hao
- Department of Pediatrics, Beijing TongRen Hospital, Capital Medical University, Beijing, China
| | - Zhuo Liu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China; Beijing Municipal Key Laboratory of Child Development and Nutriomics, Beijing, China
| | - Wenhao Ju
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China; Beijing Municipal Key Laboratory of Child Development and Nutriomics, Beijing, China; Graduate School of Peking Union Medical College, Beijing, China
| | - Feng He
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China; Beijing Municipal Key Laboratory of Child Development and Nutriomics, Beijing, China
| | - Kai Liu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China; Beijing Municipal Key Laboratory of Child Development and Nutriomics, Beijing, China; Department of Biochemistry and Immunology, Capital Institute of Pediatrics-Peking University Teaching Hospital, Beijing, China
| | - Jianxin Wu
- Department of Pediatrics, Beijing TongRen Hospital, Capital Medical University, Beijing, China; Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China; Beijing Municipal Key Laboratory of Child Development and Nutriomics, Beijing, China; Graduate School of Peking Union Medical College, Beijing, China; Department of Biochemistry and Immunology, Capital Institute of Pediatrics-Peking University Teaching Hospital, Beijing, China.
| |
Collapse
|
16
|
Du J, Wang H, Huang Z, Liu X, Yin X, Wu J, Lin W, Lin X, Yi G. Construction and mechanism study of lignin-based polyurethane with high strength and high self-healing properties. Int J Biol Macromol 2023; 248:125925. [PMID: 37499717 DOI: 10.1016/j.ijbiomac.2023.125925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/17/2023] [Accepted: 07/19/2023] [Indexed: 07/29/2023]
Abstract
Lignin is a natural polymer with abundant functional groups with great application prospects in lignin-based polyurethane elastomers with self-healing abilities. In this study, a lignin self-healing polyurethane (PUDA-L) was specially designed using lignin as the raw material of polyurethane, combining lignin with Diels-Alder (DA) bond and hydrogen bonds. The experimental results showed that PUDA-L was prepared with good thermal stability, fatigue resistance, shape memory effect, excellent mechanical strength, and self-healing ability by partially replacing the crosslinking agents with bio-based lignin and hydroxylated modified lignin to increase the hydroxyl content. Polyurethane has a tensile strength of up to 29 MPa and an elongation at break of up to 500 %. The excellent self-healing ability of PUDA-L originates from the internal DA bonds and cross-linked hydrogen bonds. After the dumbbell sample was fused and heated at 130 °C for 4 h, the elastomer could be completely healed, the tensile strength was restored to 29 MPa, and the self-healing efficiency was up to 100 %. The developed PUDA-L elastomer has promising applications in sensors and smart skins.
Collapse
Affiliation(s)
- Jiahao Du
- School of Chemical Engineering and Light Industry, Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong University of Technology, Guangzhou 510006, China
| | - Huan Wang
- School of Chemistry and Chemical Engineering, Guangzhou Key Laboratory of Sensing Materials & Devices, Guangzhou University, Guangzhou 510006, China.
| | - Zhiyi Huang
- School of Chemical Engineering and Light Industry, Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaochun Liu
- School of Chemical Engineering and Light Industry, Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong University of Technology, Guangzhou 510006, China
| | - Xinshan Yin
- School of Chemical Engineering and Light Industry, Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong University of Technology, Guangzhou 510006, China
| | - Jianxin Wu
- School of Chemical Engineering and Light Industry, Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong University of Technology, Guangzhou 510006, China
| | - Wenjing Lin
- School of Chemical Engineering and Light Industry, Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaofeng Lin
- School of Chemical Engineering and Light Industry, Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong University of Technology, Guangzhou 510006, China
| | - Guobin Yi
- School of Chemical Engineering and Light Industry, Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center, Guangdong University of Technology, Guangzhou 510006, China.
| |
Collapse
|
17
|
Zhao M, Chen GG, Zhang HL, Wu JX, Yang J, Li Y, Zhou LY. [Progresses of serum estrogen in predicting the progression of common paroxysmal vertigo disease in women]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:808-811. [PMID: 37599246 DOI: 10.3760/cma.j.cn115330-20221116-00690] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Affiliation(s)
- M Zhao
- The First Clinical Medical College of Shanxi Medical University, Taiyuan 030001, China
| | - G G Chen
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - H L Zhang
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J X Wu
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J Yang
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Y Li
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - L Y Zhou
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| |
Collapse
|
18
|
Chen Y, Dai F, Deng T, Wang L, Yang Y, He C, Liu Q, Wu J, Ai F, Song L. An injectable MB/BG@LG sustained release lipid gel with antibacterial and osteogenic properties for efficient treatment of chronic periodontitis in rats. Mater Today Bio 2023; 21:100699. [PMID: 37408697 PMCID: PMC10319327 DOI: 10.1016/j.mtbio.2023.100699] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/29/2023] [Accepted: 05/29/2023] [Indexed: 07/07/2023] Open
Abstract
Periodontitis is a chronic inflammatory disease characterized by the colonization of pathogenic microorganisms and the loss of periodontal supporting tissue. However, the existing local drug delivery system for periodontitis has some problems including subpar antibacterial impact, easy loss, and unsatisfactory periodontal regeneration. In this study, a multi-functional and sustained release drug delivery system (MB/BG@LG) was developed by encapsulating methylene blue (MB) and bioactive glass (BG) into the lipid gel (LG) precursor by Macrosol technology. The properties of MB/BG@LG were characterized using a scanning electron microscope, a dynamic shear rotation rheometer, and a release curve. The results showed that MB/BG@LG could not only sustained release for 16 days, but also quickly fill the irregular bone defect caused by periodontitis through in situ hydration. Under 660 nm light irradiation, methylene blue-produced reactive oxygen species (ROS) can reduce local inflammatory response by inhibiting bacterial growth. In addition, in vitro and vivo experiments have shown that MB/BG@LG can effectively promote periodontal tissue regeneration by reducing inflammatory response, promoting cell proliferation and osteogenic differentiation. In summary, MB/BG@LG exhibited excellent adhesion properties, self-assembly properties, and superior drug release control capabilities, which improved the clinical feasibility of its application in complex oral environments.
Collapse
Affiliation(s)
- Yeke Chen
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
- The Second Clinical Medical School, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Fang Dai
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
| | - Tian Deng
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
| | - Lijie Wang
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
- The Second Clinical Medical School, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Yuting Yang
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
- The Second Clinical Medical School, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Chenjiang He
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
- The Second Clinical Medical School, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Qiangdong Liu
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
- The Second Clinical Medical School, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Jianxin Wu
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
| | - Fanrong Ai
- School of Advanced Manufacturing, Nanchang University, Nanchang, Jiangxi, 33006, China
| | - Li Song
- Center of Stomatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 33006, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, Jiangxi, 33006, China
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, Jiangxi, 33006, China
| |
Collapse
|
19
|
Milenkovic I, Santos Vieira HG, Lucas MC, Ruiz-Orera J, Patone G, Kesteven S, Wu J, Feneley M, Espadas G, Sabidó E, Hübner N, van Heesch S, Völkers M, Novoa EM. Dynamic interplay between RPL3- and RPL3L-containing ribosomes modulates mitochondrial activity in the mammalian heart. Nucleic Acids Res 2023; 51:5301-5324. [PMID: 36882085 PMCID: PMC10287911 DOI: 10.1093/nar/gkad121] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/31/2023] [Accepted: 02/09/2023] [Indexed: 03/09/2023] Open
Abstract
The existence of naturally occurring ribosome heterogeneity is now a well-acknowledged phenomenon. However, whether this heterogeneity leads to functionally diverse 'specialized ribosomes' is still a controversial topic. Here, we explore the biological function of RPL3L (uL3L), a ribosomal protein (RP) paralogue of RPL3 (uL3) that is exclusively expressed in skeletal muscle and heart tissues, by generating a viable homozygous Rpl3l knockout mouse strain. We identify a rescue mechanism in which, upon RPL3L depletion, RPL3 becomes up-regulated, yielding RPL3-containing ribosomes instead of RPL3L-containing ribosomes that are typically found in cardiomyocytes. Using both ribosome profiling (Ribo-seq) and a novel orthogonal approach consisting of ribosome pulldown coupled to nanopore sequencing (Nano-TRAP), we find that RPL3L modulates neither translational efficiency nor ribosome affinity towards a specific subset of transcripts. In contrast, we show that depletion of RPL3L leads to increased ribosome-mitochondria interactions in cardiomyocytes, which is accompanied by a significant increase in ATP levels, potentially as a result of fine-tuning of mitochondrial activity. Our results demonstrate that the existence of tissue-specific RP paralogues does not necessarily lead to enhanced translation of specific transcripts or modulation of translational output. Instead, we reveal a complex cellular scenario in which RPL3L modulates the expression of RPL3, which in turn affects ribosomal subcellular localization and, ultimately, mitochondrial activity.
Collapse
Affiliation(s)
- Ivan Milenkovic
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr. Aiguader 88, Barcelona 08003, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Helaine Graziele Santos Vieira
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr. Aiguader 88, Barcelona 08003, Spain
| | - Morghan C Lucas
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr. Aiguader 88, Barcelona 08003, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Jorge Ruiz-Orera
- Cardiovascular and Metabolic Sciences, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), D-13125 Berlin, Germany
| | - Giannino Patone
- Cardiovascular and Metabolic Sciences, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), D-13125 Berlin, Germany
| | - Scott Kesteven
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW 2010, Australia
| | - Jianxin Wu
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW 2010, Australia
| | - Michael Feneley
- Victor Chang Cardiac Research Institute, Darlinghurst, NSW 2010, Australia
| | - Guadalupe Espadas
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr. Aiguader 88, Barcelona 08003, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Eduard Sabidó
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr. Aiguader 88, Barcelona 08003, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Norbert Hübner
- Cardiovascular and Metabolic Sciences, Max Delbrück Center for Molecular Medicine in the Helmholtz Association (MDC), D-13125 Berlin, Germany
- Charité -Universitätsmedizin, D-10117 Berlin, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Berlin, D-13347 Berlin, Germany
| | - Sebastiaan van Heesch
- Princess Máxima Center for Pediatric Oncology, Heidelberglaan 25, 3584 CS, Utrecht, The Netherlands
| | | | - Eva Maria Novoa
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Dr. Aiguader 88, Barcelona 08003, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| |
Collapse
|
20
|
Lu Z, Qian P, Chang J, He X, Zhang H, Wu J, Zhang T, Wu J. Multi-omics analysis explores the effect of chronic exercise on liver metabolic reprogramming in mice. Front Cell Dev Biol 2023; 11:1199902. [PMID: 37408533 PMCID: PMC10318136 DOI: 10.3389/fcell.2023.1199902] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 06/09/2023] [Indexed: 07/07/2023] Open
Abstract
Background: The effect of exercise on human metabolism is obvious. However, the effect of chronic exercise on liver metabolism in mice is less well described. Methods: The healthy adult mice running for 6 weeks as exercise model and sedentary mice as control were used to perform transcriptomic, proteomic, acetyl-proteomics, and metabolomics analysis. In addition, correlation analysis between transcriptome and proteome, and proteome and metabolome was conducted as well. Results: In total, 88 mRNAs and 25 proteins were differentially regulated by chronic exercise. In particular, two proteins (Cyp4a10 and Cyp4a14) showed consistent trends (upregulated) at transcription and protein levels. KEGG enrichment analysis indicated that Cyp4a10 and Cyp4a14 are mainly involved in fatty acid degradation, retinol metabolism, arachidonic acid metabolism and PPAR signaling pathway. For acetyl-proteomics analysis, 185 differentially acetylated proteins and 207 differentially acetylated sites were identified. Then, 693 metabolites in positive mode and 537 metabolites in negative mode were identified, which were involved in metabolic pathways such as fatty acid metabolism, citrate cycle and glycolysis/gluconeogenesis. Conclusion: Based on the results of transcriptomic, proteomics, acetyl-proteomics and metabolomics analysis, chronic moderate intensity exercise has certain effects on liver metabolism and protein synthesis in mice. Chronic moderate intensity exercise may participate in liver energy metabolism by influencing the expression of Cyp4a14, Cyp4a10, arachidonic acid and acetyl coenzyme A and regulating fatty acid degradation, arachidonic acid metabolism, fatty acyl metabolism and subsequent acetylation.
Collapse
Affiliation(s)
- Zhaoxu Lu
- Children’s Hospital Capital Institute of Pediatrics, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Ping Qian
- Children’s Hospital Capital Institute of Pediatrics, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Jiahui Chang
- Children’s Hospital Capital Institute of Pediatrics, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Xuejia He
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics-Peking University Teaching Hospital, Beijing, China
| | - Haifeng Zhang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Experimental Center, Capital Institute of Pediatrics, Beijing, China
| | - Jian Wu
- School of Kinesiology and Health, Capital University of Physical Education and Sports, Beijing, China
| | - Ting Zhang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Jianxin Wu
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
- Beijing Tongren Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
21
|
Lu Z, Qu X, Chang J, Xu M, Song G, Wang X, Okely AD, Zhang T, Guan H, Wu J. Reallocation of time between preschoolers' 24-h movement behaviours and executive functions: A compositional data analysis. J Sports Sci 2023; 41:1187-1195. [PMID: 37724814 DOI: 10.1080/02640414.2023.2260632] [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: 08/08/2022] [Accepted: 09/12/2023] [Indexed: 09/21/2023]
Abstract
The objectives of the survey were to explored the associations of the 24-h movement behaviours (MB) with executive functions (EFs) and quantified the predicted changes in EFs following allocation of time among behaviours. In the cross-sectional survey, 135 preschoolers (3 ~ 5 years) were enrolled. Physical activity (PA) and sedentary (SED) time were objectively measured employing an ActiGraph GT9X. Sleep time was reported by parents. EFs were assessed using the iPad-based Early Years Toolbox which is a collection of computerized tasks consisting of brief tasks assessed from games administered and scored according to protocol. To explore the associations of the 24-h MB with EFs, compositional multiple linear regression was employed. To quantify the predicted changes in EFs following allocation of time among behaviours, compositional isotemporal substitution was used. Moderate-to-vigorous physical activity (MVPA) was positively related to cognitive flexibility. Replacing sleep or SED with MVPA was associated with positive changes in cognitive flexibility. When MVPA was replaced with sleep or SED, the predicted detriments to cognitive flexibility were larger than predicted benefits of replacing sleep or SED with MVPA. The findings highlight the key role of intensity of PA for preschoolers' EFs and the importance of meeting recommended levels of MVPA.
Collapse
Affiliation(s)
- Zhaoxu Lu
- Children's Hospital Capital Institute of Pediatrics, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Department of Biochemistry and Immunology, Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Xiao Qu
- PICU, Senior Department of Pediatrics, the Seventh Medical Center of PLA General Hospital, Beijing, China
| | - Jiahui Chang
- Children's Hospital Capital Institute of Pediatrics, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Department of Biochemistry and Immunology, Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Mengxue Xu
- Nurturing Care Research and Guidance Center, Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
| | - Guochao Song
- Department of Biochemistry and Immunology, Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
| | - Xiaojuan Wang
- Nurturing Care Research and Guidance Center, Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
| | - Anthony D Okely
- Early Start, School of Health and Society, Faculty of the Arts, Social Science and Humanities, University of Wollongong, Wollongong, Australia
| | - Ting Zhang
- Children's Hospital Capital Institute of Pediatrics, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Department of Biochemistry and Immunology, Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
| | - Hongyan Guan
- Nurturing Care Research and Guidance Center, Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
| | - Jianxin Wu
- Children's Hospital Capital Institute of Pediatrics, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Department of Biochemistry and Immunology, Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
- Beijing Tongren Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
22
|
Wu J, Zhan X, Xu H, Ma C. The economic impacts of COVID-19 and city lockdown: Early evidence from China. Struct Chang Econ Dyn 2023; 65:151-165. [PMID: 36876039 PMCID: PMC9974523 DOI: 10.1016/j.strueco.2023.02.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 02/19/2023] [Accepted: 02/26/2023] [Indexed: 05/07/2023]
Abstract
As the first major developing country heavily struck by the COVID-19 pandemic, China adopted the world's most stringent lockdown interventions to contain the virus spread. Using macro- and micro-level data, this paper shows that both the pandemic and lockdown policies have had negative and significant impacts on the economy. Gross regional product (GRP) fell by 9.5 and 0.3 percentage points in cities with and without lockdown interventions, respectively. These impacts represent a dramatic recession from China's average growth of 6.74% before the pandemic. The results indicate that lockdown explains 2.8 percentage points of the GDP loss. We also document significant spill-over effects of the pandemic in adjacent areas but no such effects of lockdown. Reduced labor mobility, land supply, and entrepreneurship are among the most significant mechanisms underpinning the impacts of the pandemic and lockdown. Cities with higher share of secondary industry, higher traffic intensity, lower population density, lower internet access, and lower fiscal capacity suffered more. However, these cities seem to have recovered well from the recession and quickly closed the economic gap in the aftermath of the pandemic and city lockdown. Our findings have broader implications for the global interventions in pandemic containment.
Collapse
Affiliation(s)
- Jianxin Wu
- School of Economics, Institute of Resource, Environment and Sustainable Development Research, Jinan University, No.601 Huangpu West Road, Guangzhou, Guangdong Province, PR. China
| | - Xiaoling Zhan
- School of Economics, Institute of Resource, Environment and Sustainable Development Research, Jinan University, No.601 Huangpu West Road, Guangzhou, Guangdong Province, PR. China
| | - Hui Xu
- School of Economics, Nankai University, 94 Weijin Rd, Nankai District, PR. China
| | - Chunbo Ma
- Department of Agricultural and Resource Economics, School of Agriculture and Environment, University of Western Australia, 35 Stirling Highway, Crawley 6009, Western Australia, Australia
| |
Collapse
|
23
|
Wu J, Yu L, Liu Y, Xiao B, Ye X, Zhao H, Xi Y, Shi Z, Wang W. Hypoxia regulates adipose mesenchymal stem cells proliferation, migration, and nucleus pulposus-like differentiation by regulating endoplasmic reticulum stress via the HIF-1α pathway. J Orthop Surg Res 2023; 18:339. [PMID: 37158945 PMCID: PMC10169485 DOI: 10.1186/s13018-023-03818-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 05/01/2023] [Indexed: 05/10/2023] Open
Abstract
OBJECTIVE Hypoxia can promote stem cell proliferation and migration through HIF-1α. Hypoxia can regulate cellular endoplasmic reticulum (ER) stress. Some studies have reported the relationship among hypoxia, HIF-α, and ER stress, however, while little is known about HIF-α and ER stress in ADSCs under hypoxic conditions. The purpose of the study was to investigate the role and relationship of hypoxic conditions, HIF-1α and ER stress in regulating adipose mesenchymal stem cells (ADSCs) proliferation, migration, and NPC-like differentiation. METHOD ADSCs were pretreated with hypoxia, HIF-1α gene transfection, and HIF-1α gene silence. The ADSCs proliferation, migration, and NPC-like differentiation were assessed. The expression of HIF-1α in ADSCs was regulated; then, the changes of ER stress level in ADSCs were observed to investigate the relationship between ER stress and HIF-1α in ADSCs under hypoxic conditions. RESULT The cell proliferation and migration assay results show that hypoxia and HIF-1α overexpression can significantly increase the ADSCs proliferation and migration, while HIF-1α inhibition can significantly decrease the ADSCs proliferation and migration. The HIF-1α and co-cultured with NPCs played an important role in the directional differentiation of ADSCs into NPCs. The hypoxia-regulated ER stress in ADSCs through the HIF-1α pathway, thereby regulating the cellular state of ADSCs, was also observed. CONCLUSION Hypoxia and HIF-1α play important roles in proliferation, migration, and NPC-like differentiation of ADSCs. This study provides preliminary evidence that HIF-1α-regulated ER stress thus affects ADSCs proliferation, migration, and differentiation. Therefore, HIF-1α and ER may serve as key points to improve the efficacy of ADSCs in treating disc degeneration.
Collapse
Affiliation(s)
- Jianxin Wu
- Department of Orthopaedics, First Affiliated Hospital of Naval Medical University, No. 168 Changhai Road, Shanghai, People's Republic of China
| | - Lei Yu
- Department of Orthopedic Surgery and Neurosurgery, No. 906 Hospital of the People's Liberation Army, Ningbo, Zhejiang, People's Republic of China
| | - Yi Liu
- Department of Orthopedics, Tianjin First Central Hospital, School of Medicine, Nankai University, No. 24 Kangfu Road, Tianjin, People's Republic of China
| | - Bing Xiao
- Department of Orthopaedics, Second Affiliated Hospital of Naval Medical University, No. 415 Fengyang Road, Shanghai, People's Republic of China
| | - Xiaojian Ye
- Department of Orthopaedics, Tongren Hospital of Shanghai Jiaotong University, No. 1111, Xianxia Road, Shanghai, People's Republic of China
| | - Hong Zhao
- Department of Orthopedics, Tianjin First Central Hospital, School of Medicine, Nankai University, No. 24 Kangfu Road, Tianjin, People's Republic of China
| | - Yanhai Xi
- Department of Orthopaedics, Second Affiliated Hospital of Naval Medical University, No. 415 Fengyang Road, Shanghai, People's Republic of China
| | - Zhicai Shi
- Department of Orthopaedics, First Affiliated Hospital of Naval Medical University, No. 168 Changhai Road, Shanghai, People's Republic of China
| | - Weiheng Wang
- Department of Orthopaedics, Second Affiliated Hospital of Naval Medical University, No. 415 Fengyang Road, Shanghai, People's Republic of China.
| |
Collapse
|
24
|
Zong K, Xu K, Zhang X, Wang P, Wang Z, Yang S, Li H, Ke H, He S, Hu Y, Go Y, Chan XHF, Wu J, Huang Q. Explorating the mechanism of Huangqin Tang against skin lipid accumulation through network pharmacology and experimental validation. J Ethnopharmacol 2023; 313:116581. [PMID: 37142143 DOI: 10.1016/j.jep.2023.116581] [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: 03/05/2023] [Revised: 04/26/2023] [Accepted: 05/01/2023] [Indexed: 05/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Huangqin Tang (HQT), a famous prescription with the effect of clearing pathogenic heat and detoxifying, was first recorded in "Treatise on Typhoid and Miscellaneous Diseases". It has proved that HQT has good anti-inflammatory and antioxidant effects and can improve acne symptoms clinically. However, the study on the regulation of HQT on sebum secretion which is one of the inducements of acne is not enough. AIM OF THE STUDY This paper aimed to investigate the mechanisms of HQT in the treatment of skin lipid accumulation by network pharmacology and validating the results via in vitro experiments. MATERIALS AND METHODS Network pharmacology was employed to predict the potential targets of HQT against sebum accumulation. Then, the palmitic acid (PA)-induced SZ95 cell model was established to evaluate the effect of HQT on lipid accumulation and anti-inflammation, and the core pathways predicted by network pharmacology were verified in cell studies. RESULTS 336 chemical compounds and 368 targets in HQT were obtained by network pharmacology, of which 65 targets were related to sebum synthesis. 12 core genes were revealed by protein-protein interaction (PPI) network analysis. Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment results suggested that AMP-activated protein kinase (AMPK) signaling pathway might play a crucial role in regulating lipogenesis. In vitro experiments, HQT suppressed lipid accumulation, downregulated the expressions of sterol-regulatory element binding protein-1 (SREBP-1) and fatty acid synthase (FAS), and upregulated AMPK phosphorylation. Furthermore, AMPK inhibitor reversed HQT-mediated sebosuppressive effect. CONCLUSION The results disclosed that HQT ameliorates lipogenesis in PA-induced SZ95 sebocytes partially through the AMPK signaling pathway.
Collapse
Affiliation(s)
- Kaile Zong
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, No.639 Longmian Lane, Nanjing, 211198, China
| | - Kewei Xu
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, No.639 Longmian Lane, Nanjing, 211198, China
| | - Xingjiang Zhang
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, No.639 Longmian Lane, Nanjing, 211198, China
| | - Pan Wang
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, No.639 Longmian Lane, Nanjing, 211198, China
| | - Zhekun Wang
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, No.639 Longmian Lane, Nanjing, 211198, China
| | - Shan Yang
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, No.639 Longmian Lane, Nanjing, 211198, China
| | - Huijuan Li
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, No.639 Longmian Lane, Nanjing, 211198, China
| | - Hui Ke
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, No.639 Longmian Lane, Nanjing, 211198, China
| | - Shengsheng He
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, No.639 Longmian Lane, Nanjing, 211198, China
| | - Yunwei Hu
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, No.639 Longmian Lane, Nanjing, 211198, China
| | - Yuyo Go
- Royal Victoria Hospital, 274 Grosvenor Rd, Belfast, BT12 6BA, United Kingdom
| | | | - Jianxin Wu
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, No.639 Longmian Lane, Nanjing, 211198, China.
| | - Qing Huang
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, No.639 Longmian Lane, Nanjing, 211198, China.
| |
Collapse
|
25
|
Lu S, Yu XM, Hu YP, Ma ZY, Li XY, Li WD, Liu YP, Wang D, Wang XW, Wang ZH, Wu JX, Zhong DS, Li GF, He WY, Bao YY, Yuan Y, Fan JH. [Response characteristics of tislelizumab combined with chemotherapy in first-line treatment of locally advanced or metastatic non-squamous non-small cell lung cancer]. Zhonghua Zhong Liu Za Zhi 2023; 45:358-367. [PMID: 37078218 DOI: 10.3760/cma.j.cn112152-20220928-00662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 04/21/2023]
Abstract
Objective: To investigate the response characteristics of patients with locally advanced/metastatic non-squamous non-small cell lung cancer (nsq-NSCLC) treated with tislelizumab in combination with chemotherapy in the first line. Methods: Patients with nsq-NSCLC who achieved complete or partial remission after treatment with tislelizumab in combination with chemotherapy or chemotherapy alone in the RATIONALE 304 study, as assessed by an independent review board, were selected to analyze the response characteristics and safety profile of the responders. Time to response (TTR) was defined as the time from randomization to the achievement of first objective response. Depth of response (DpR) was defined as the maximum percentage of tumor shrinkage compared with the sum of the baseline target lesion length diameters. Results: As of January 23, 2020, 128 patients treated with tislelizumab in combination with chemotherapy achieved objective tumor response (responders), representing 57.4%(128/223) of the intention-to-treat population, with a TTR of 5.1 to 33.3 weeks and a median TTR of 7.9 weeks. Of the responders (128), 50.8%(65) achieved first remission at the first efficacy assessment (week 6), 31.3%(40) at the second efficacy assessment (week 12), and 18.0%(23) at the third and subsequent tumor assessments. The percentages of responders who achieved a depth of tumor response of 30% to <50%, 50% to <70% and 70% to 100% were 45.3%(58/128), 28.1%(36/128) and 26.6%(34/128), respectively, with median progression-free survival (PFS) of 9.0 months (95% CI: 7.7 to 9.9 months), 11.5 months (95% CI: 7.7 months to not reached) and not reached (95% CI: 11.8 months to not estimable), respectively. Tislelizumab plus chemotherapy were generally well tolerated in responders with similar safety profile to the overall safety population. Conclusion: Among responders to tislelizumab in combination with chemotherapy for nsq-NSCLC, 82.0%(105/128) achieves response within the first two tumor assessments (12 weeks) and 18.0%(23/128) achieves response at later (18 to 33 weeks) assessments, and there is a trend toward prolonged PFS in responders with deeper tumor response.
Collapse
Affiliation(s)
- S Lu
- Shanghai Chest Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China
| | - X M Yu
- Department of Thoracic Oncology, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Y P Hu
- Department of Thoracic Oncology, Hubei Cancer Hospital, Wuhan 430079, China
| | - Z Y Ma
- Department of Respiratory Medicine, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou University, Zhengzhou 450003, China
| | - X Y Li
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W D Li
- Department of Medical Oncology, Affiliated Cancer Hospital of Guangzhou Medical University, Guangzhou 510095, China
| | - Y P Liu
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang 110001, China
| | - D Wang
- Department of Oncology, Army Sepcialty Medical Center, Chongqing 400042, China
| | - X W Wang
- Department of Medical Oncology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Z H Wang
- Department of Medical Oncology, Shandong Cancer Hospital, Jinan 250117, China
| | - J X Wu
- Department of Medical Oncology, The First Affiliated Hospital of Xiamen University, Xiamen 361003, China
| | - D S Zhong
- Department of Medical Oncology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - G F Li
- Department of Thoracic Surgery, Yunnan Cancer Hospital, Kunming 650118, China
| | - W Y He
- BeiGene (Beijing) Co., Ltd., Beijing 100022, China
| | - Y Y Bao
- BeiGene (Shanghai) Co., Ltd., Shanghai 200020, China
| | - Y Yuan
- BeiGene (Shanghai) Co., Ltd., Shanghai 200020, China
| | - J H Fan
- BeiGene (Beijing) Co., Ltd., Beijing 100022, China
| |
Collapse
|
26
|
Yang S, Wang Z, Hu Y, Zong K, Zhang X, Ke H, Wang P, Go Y, Chan XHF, Wu J, Huang Q. Hydrolyzed Conchiolin Protein (HCP) Extracted from Pearls Antagonizes both ET-1 and α-MSH for Skin Whitening. Int J Mol Sci 2023; 24:ijms24087471. [PMID: 37108635 PMCID: PMC10138581 DOI: 10.3390/ijms24087471] [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: 02/22/2023] [Revised: 04/11/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Pearl powder is a famous traditional Chinese medicine that has a long history in treating palpitations, insomnia, convulsions, epilepsy, ulcers, and skin lightining. Recently, several studies have demonstrated the effects of pearl extracts on protection of ultraviolet A (UVA) induced irritation on human skin fibroblasts and inhibition of melanin genesis on B16F10 mouse melanoma cells. To further explore the effect we focused on the whitening efficacy of pearl hydrolyzed conchiolin protein (HCP) on human melanoma MNT-1 cells under the irritation of alpha-melanocyte-stimulating hormone (α-MSH) or endothelin 1 (ET-1) to evaluate the intracellular tyrosinase and melanin contents, as well as the expression levels of tyrosinase (TYR), tyrosinase related protein 1 (TRP-1), and dopachrome tautomerase (DCT) genes and related proteins. We found that HCP could decrease the intracellular melanin content by reducing the activity of intracellular tyrosinase and inhibiting the expression of TYR, TRP-1, DCT genes and proteins. At the same time, the effect of HCP on melanosome transfer effect was also investigated in the co-culture system of immortalized human keratinocyte HaCaT cells with MNT-1. The result indicated that HCP could promote the transfer of melanosomes in MNT-1 melanocytes to HaCaT cells, which might accelerate the skin whitening process by quickly transferring and metabolizing melanosomes during keratinocyte differentiation. Further study is needed to explore the mechanism of melanosome transfer with depigmentation.
Collapse
Affiliation(s)
- Shan Yang
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, Nanjing 211198, China
| | - Zhekun Wang
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, Nanjing 211198, China
| | - Yunwei Hu
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, Nanjing 211198, China
| | - Kaile Zong
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, Nanjing 211198, China
| | - Xingjiang Zhang
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, Nanjing 211198, China
| | - Hui Ke
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, Nanjing 211198, China
| | - Pan Wang
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, Nanjing 211198, China
| | - Yuyo Go
- Royal Victoria Hospital, 274 Grosvenor Rd, Belfast BT12 6BA, UK
| | | | - Jianxin Wu
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, Nanjing 211198, China
| | - Qing Huang
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, Nanjing 211198, China
| |
Collapse
|
27
|
Duan H, Ge W, Wu J, Lv J, Li Z, Dong W, Du X, Zhang L, Zhang Y, Hu J, Zhao X. Melatonin regulates dihydrotestosterone formation via its membrane receptor in the epididymal epithelial cells of sheep. Theriogenology 2023; 198:273-281. [PMID: 36623430 DOI: 10.1016/j.theriogenology.2022.12.040] [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: 02/13/2022] [Revised: 12/23/2022] [Accepted: 12/27/2022] [Indexed: 12/31/2022]
Abstract
Both melatonin and androgen, which affect sperm fertility, are the important factors in epididymis of male animal. In the present study, we confirmed that melatonin regulates the formation of dihydrotestosterone (DHT) in sheep epididymides. Here, we investigated the localization and the expression levels of melatonin keys synthases AANAT and HIOMT, membrane receptors MT1 and MT2, and nuclear receptor RORα in sheep epididymides and testes. We also cultured epididymal epithelial cells and treated them with different concentrations of melatonin (10-11-10-7 M) and luzindole (10-5 M) and 4P-PDOT (10-5 M) to investigate whether melatonin is involved in the regulation of DHT formation and whether these effects are mediated through its receptor pathways. The results showed that AANAT, HIOMT, MT1, MT2, and RORα were differentially expressed between sheep epididymides and testes. In addition, melatonin is involved in mediating the formation of DHT in epididymal epithelial cells, and its influence on DHT is at least partially regulated by the melatonin receptor pathway. Our findings showed that melatonin regulates the functions of the testes and epididymides through an autocrine mechanism and regulates the formation of androgen in sheep epididymides via the receptor pathway. These results provide a basis for further exploring the regulatory mechanisms of melatonin in animal reproduction.
Collapse
Affiliation(s)
- Hongwei Duan
- Key Lab of Animal Generational Physiology and Reproductive Regulation of Gansu Province, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, PR China
| | - Wenbo Ge
- Key Lab of Animal Generational Physiology and Reproductive Regulation of Gansu Province, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, PR China; Key Lab of New Animal Drug Project of Gansu Province, Key Lab of Veterinary Pharmaceutical Development of Ministry of Agriculture and Rural Affairs, Lanzhou Institute of Animal Science and Veterinary Pharmaceutics, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, PR China
| | - Jianxin Wu
- Key Lab of Animal Generational Physiology and Reproductive Regulation of Gansu Province, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, PR China
| | - Jianshu Lv
- Key Lab of Animal Generational Physiology and Reproductive Regulation of Gansu Province, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, PR China
| | - Zongshuai Li
- Key Lab of Animal Generational Physiology and Reproductive Regulation of Gansu Province, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, PR China
| | - Weitao Dong
- Key Lab of Animal Generational Physiology and Reproductive Regulation of Gansu Province, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, PR China
| | - Xianghong Du
- Key Lab of Animal Generational Physiology and Reproductive Regulation of Gansu Province, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, PR China
| | - Lihong Zhang
- Key Lab of Animal Generational Physiology and Reproductive Regulation of Gansu Province, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, PR China
| | - Yong Zhang
- Key Lab of Animal Generational Physiology and Reproductive Regulation of Gansu Province, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, PR China
| | - Junjie Hu
- Key Lab of Animal Generational Physiology and Reproductive Regulation of Gansu Province, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, PR China.
| | - Xingxu Zhao
- Key Lab of Animal Generational Physiology and Reproductive Regulation of Gansu Province, College of Veterinary Medicine, Gansu Agricultural University, Lanzhou, 730070, PR China.
| |
Collapse
|
28
|
Sui L, Zhang CL, Wu J. Salvage of Supervision in Weakly Supervised Object Detection and Segmentation. IEEE Trans Pattern Anal Mach Intell 2023; PP:1-14. [PMID: 37022838 DOI: 10.1109/tpami.2023.3243054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Weakly supervised vision tasks, including detection and segmentation, have attracted much attention in the vision community recently. However, the lack of detailed and precise annotations in the weakly supervised case leads to a large accuracy gap between weakly- and fully-supervised methods. In this paper, we propose a new framework, Salvage of Supervision (SoS), with the key idea being to effectively harness every potentially useful supervisory signal in weakly supervised vision tasks. Starting with weakly supervised object detection (WSOD), we propose SoS-WSOD to shrink the technology gap between WSOD and FSOD, which utilizes the weak image-level labels, the pseudo-labels, and the power of semi-supervised object detection for WSOD. Moreover, SoS-WSOD removes restrictions in traditional WSOD methods, including the reliance on ImageNet pretraining and inability to use modern backbones. The SoS framework also extends to weakly supervised semantic segmentation and instance segmentation. On several weakly supervised vision benchmarks, SoS achieves significant performance boost and generalization ability.
Collapse
|
29
|
Luo S, Wu J, Qiu Y, Xiao B, Xi Y, Yang C, Shi Z, Wang W. Hydrogen Promotes the Effectiveness of Bone Mesenchymal Stem Cell Transplantation in Rats with Spinal Cord Injury. Stem Cells Int 2023; 2023:8227382. [PMID: 37181828 PMCID: PMC10175019 DOI: 10.1155/2023/8227382] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 03/22/2023] [Accepted: 04/13/2023] [Indexed: 05/16/2023] Open
Abstract
Although bone mesenchymal stem cell (BMSC) transplantation has been applied to the treatment of spinal cord injury (SCI), the effect is unsatisfactory due to the specific microenvironment (inflammation and oxidative stress) in the SCI area, which leads to the low survival rate of transplanted cells. Thus, additional strategies are required to improve the efficacy of transplanted cells in the treatment of SCI. Hydrogen possesses antioxidant and anti-inflammatory properties. However, whether hydrogen can enhance the effect of BMSC transplantation in the treatment of SCI has not yet been reported. This study was aimed at investigating whether hydrogen promotes the therapeutic effect of BMSC transplantation in the treatment of SCI in rats. In vitro, BMSCs were cultured in a normal medium and a hydrogen-rich medium to study the effect of hydrogen on the proliferation and migration of BMSCs. BMSCs were treated with a serum-deprived medium (SDM), and the effects of hydrogen on the apoptosis of BMSCs were studied. In vivo, BMSCs were injected into the rat model of SCI. Hydrogen-rich saline (5 ml/kg) and saline (5 ml/kg) were given once a day via intraperitoneal injection. Neurological function was evaluated using the Basso, Beattie, and Bresnahan (BBB) and CatWalk gait analyses. Histopathological analysis, oxidative stress, inflammatory factors (TNF-α, IL-1β, and IL-6), and transplanted cell viability were detected at 3 and 28 days after SCI. Hydrogen can significantly enhance BMSC proliferation and migration and tolerance to SDM. Hydrogen and BMSC codelivery can significantly enhance neurological function recovery by improving the transplant cell survival rate and migration. Hydrogen can enhance the migration and proliferation capacity of BMSCs to repair SCI by reducing the inflammatory response and oxidative stress in the injured area. Hydrogen and BMSC codelivery is an effective method to improve BMSC transplantation in the treatment of SCI.
Collapse
Affiliation(s)
- Shengchang Luo
- Department of Orthopaedics, The First People's Hospital of Huzhou, No. 158, Plaza Back Road, Huzhou, 313099 Zhejiang Province, China
| | - Jianxin Wu
- Department of Orthopaedics, The First Affiliated Hospital of Naval Medical University, No. 168 Changhai Road, Shanghai 200433, China
| | - Yuanyuan Qiu
- School Hospital of Shanghai University of Sport, No. 399, Changhai Road, Shanghai 200433, China
| | - Bing Xiao
- Department of Orthopaedics, The Second Affiliated Hospital of Naval Medical University, No. 415 Fengyang Road, Shanghai 200003, China
| | - Yanhai Xi
- Department of Orthopaedics, The Second Affiliated Hospital of Naval Medical University, No. 415 Fengyang Road, Shanghai 200003, China
| | - Chengwei Yang
- Department of Spinal Surgery, The 940th Hospital of Joint Logistics Support Force of People's Liberation Army, No. 333 South Binhe Road, Lanzhou, 730050 Gansu Province, China
| | - Zhicai Shi
- Department of Orthopaedics, The First Affiliated Hospital of Naval Medical University, No. 168 Changhai Road, Shanghai 200433, China
| | - Weiheng Wang
- Department of Orthopaedics, The Second Affiliated Hospital of Naval Medical University, No. 415 Fengyang Road, Shanghai 200003, China
| |
Collapse
|
30
|
Wang Z, Wang Z, Jiang Y, Li J, Wu X, Wu J. Effect of acupuncture at Xinwu acupoint combined with loratadine and fluticasone propionate on symptom alleviation, nasal function, and serum histamine level in patients with allergic rhinitis. Am J Transl Res 2023; 15:1403-1411. [PMID: 36915733 PMCID: PMC10006795] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 01/11/2023] [Indexed: 03/16/2023]
Abstract
OBJECTIVE To determine the influence of acupuncture at the Xinwu acupoint combined with western medicine (loratadine and fluticasone propionate) on symptom alleviation, nasal mucociliary clearance velocity (MCV), and serum histamine level of patients with allergic rhinitis (AR). METHODS A total of 122 patients with AR treated in Gansu province hospital of TCM and The Third People's Hospital of Gansu Province from April 2019 to April 2021 were retrospectively analyzed. Among them, 54 patients treated with loratadine and fluticasone propionate were assigned to the control group, and 68 patients treated with additional acupuncture at the Xinwu acupoint based on treatment of the control group were assigned to the observation group. The treatment efficacy of the two groups was compared, and the scores of main symptoms and nasal function were also compared before and after therapy. Additionally, the two groups were compared in the levels of histamine, tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and immunoglobulin E (IgE) before and after therapy. RESULTS After therapy, the observation group yielded a higher total effective rate than the control group (P=0.006) and had lower symptom scores than the control group (P<0.001). Additionally, the MCV of the two groups increased (P<0.001), and the nasal mucociliary transit time (MTT) and nasal resistance (NR) of both groups decreased (P<0.001) after therapy. The observation group showed a greatly better improvement of nasal function than the control group (P<0.001). Moreover, after therapy, the observation group showed lower histamine and IgE levels than the control group (P<0.01) and the observation group presented significantly lower levels than the control group, and had lower rhinoconjunctivitis Quality of Life Questionnaire (RQLQ) scores than the control group (P<0.001). The two groups were not different in the incidence of adverse reactions (P=0.886). CONCLUSION Acupuncture at Xinwu acupoint combined with loratadine and fluticasone propionate can deliver a powerful efficacy on AR and alleviate the clinical symptoms, without increasing adverse reactions.
Collapse
Affiliation(s)
- Zhongxia Wang
- Otolaryngology Department, Gansu Province Hospital of TCM No. 418, Guazhou Road, Qilihe District, Lanzhou 730050, Gansu, China
| | - Zhiyong Wang
- Medical Services Section, Gansu Province Hospital of TCM No. 418, Guazhou Road, Qilihe District, Lanzhou 730050, Gansu, China
| | - Yan Jiang
- Otolaryngology Department, Gansu Province Hospital of TCM No. 418, Guazhou Road, Qilihe District, Lanzhou 730050, Gansu, China
| | - Jinhua Li
- Traditional Chinese Medicine Department, Gansu Provincial People's Hospital No. 204, Donggang West Road, Chengguan District, Lanzhou 730000, Gansu, China
| | - Xiaoyan Wu
- Traditional Chinese Medicine Department, Longxi County Traditional Chinese Medicine Inheritance and Innovation Demonstration Center Dingxi, Gansu, China
| | - Jianxin Wu
- Traditional Chinese Medicine Department, The Third People's Hospital of Gansu Province No. 763, Jiatan, Chengguan District, Lanzhou 730000, Gansu, China
| |
Collapse
|
31
|
Du XY, Chen GG, Zhou LY, Li Y, Yang J, Wu JX, Huangfu H. [Review on screening questionnaire related to epsiodic vestibular syndrome]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1535-1539. [PMID: 36707966 DOI: 10.3760/cma.j.cn115330-20220425-00225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- X Y Du
- First Clinical Medical College, Shanxi Medical University, Taiyuan 030001, China Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - G G Chen
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - L Y Zhou
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - Y Li
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - J Yang
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - J X Wu
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - H Huangfu
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| |
Collapse
|
32
|
Wei XS, Song YZ, Aodha OM, Wu J, Peng Y, Tang J, Yang J, Belongie S. Fine-Grained Image Analysis With Deep Learning: A Survey. IEEE Trans Pattern Anal Mach Intell 2022; 44:8927-8948. [PMID: 34752384 DOI: 10.1109/tpami.2021.3126648] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Fine-grained image analysis (FGIA) is a longstanding and fundamental problem in computer vision and pattern recognition, and underpins a diverse set of real-world applications. The task of FGIA targets analyzing visual objects from subordinate categories, e.g., species of birds or models of cars. The small inter-class and large intra-class variation inherent to fine-grained image analysis makes it a challenging problem. Capitalizing on advances in deep learning, in recent years we have witnessed remarkable progress in deep learning powered FGIA. In this paper we present a systematic survey of these advances, where we attempt to re-define and broaden the field of FGIA by consolidating two fundamental fine-grained research areas - fine-grained image recognition and fine-grained image retrieval. In addition, we also review other key issues of FGIA, such as publicly available benchmark datasets and related domain-specific applications. We conclude by highlighting several research directions and open problems which need further exploration from the community.
Collapse
|
33
|
Abstract
Obesity has become a serious global public health problem; a deeper understanding of systemic change of chromatin accessibility during human adipogenesis contributes to conquering obesity and its related diseases. Here, we applied the ATAC-seq method to depict a high-quality genome‐wide time-resolved accessible chromatin atlas during adipogenesis of human adipose-derived stem cells (hASCs). Our data indicated that the chromatin accessibility drastic dynamically reformed during the adipogenesis of hASCs and 8 h may be the critical transition node of adipogenesis chromatin states from commitment phase to determination phase. Moreover, upon adipogenesis, we also found that the chromatin accessibility of regions related to anti-apoptotic, angiogenic and immunoregulatory gradually increased, which is beneficial to maintaining the health of adipose tissue (AT). Finally, the chromatin accessibility changed significantly in intronic regions of peroxisome proliferator‐activated receptor γ during adipogenesis, and these regions were rich in transcription factors binding motifs that were exposed for further regulation. Overall, we systematically analysed the complex change of chromatin accessibility occurring in the early stage of adipogenesis and deepened our understanding of human adipogenesis. Furthermore, we also provided a good reference data resource of genome‐wide chromatin accessibility for future studies on human adipogenesis.
Collapse
Affiliation(s)
- Sen Li
- Department of Biochemistry & Immunology, Capital Institute of Pediatrics, Beijing, China
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
| | - Xiaolin Zong
- Division of achievements transformation, Development Center for Medical Science & Technology National Health Commission of the People’s Republic of China, Beijing, China
| | - Liheng Zhang
- Shanghai Jiayin Biotechnology Co., Ltd, Shanghai, China
| | - Luya Li
- Department of Biochemistry & Immunology, Capital Institute of Pediatrics, Beijing, China
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
| | - Jianxin Wu
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
- Beijing TongRen Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
34
|
Wu JX, Deng KM, Wang KZ, Zhou TP. [A case of 2q37 deletion syndrome related ophthalmo facial malformation]. Zhonghua Yan Ke Za Zhi 2022; 58:920-922. [PMID: 36348530 DOI: 10.3760/cma.j.cn112142-20220418-00182] [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: 06/16/2023]
Abstract
A child complained of bilateral congenital non-progressive ptosis for 18 months. According to the clinical characteristics, systemic development and chromosome microarray analysis, the child was diagnosed as 2q37 deletion syndrome related ophthalmo facial malformation. The patient underwent the frontalis aponeurosis flap suspension. After operation, the appearance of eyelids was significantly improved.
Collapse
Affiliation(s)
- J X Wu
- Xiamen Eye Center of Xiamen University, Fujian Provincial Key Laboratory of Corneal & Ocular Surface Diseases, Xiamen 361002, China
| | - K M Deng
- Xiamen Eye Center of Xiamen University, Fujian Provincial Key Laboratory of Corneal & Ocular Surface Diseases, Xiamen 361002, China
| | - K Z Wang
- Department of Ophthalmology, Xiamen Huli District Maternity and Child Care Hospital, Xiamen 361009, China
| | - T P Zhou
- Xiamen Eye Center of Xiamen University, Fujian Provincial Key Laboratory of Corneal & Ocular Surface Diseases, Xiamen 361002, China
| |
Collapse
|
35
|
Zheng W, Li H, Go Y, Chan XH(F, Huang Q, Wu J. Research Advances on the Damage Mechanism of Skin Glycation and Related Inhibitors. Nutrients 2022; 14:4588. [PMID: 36364850 PMCID: PMC9655929 DOI: 10.3390/nu14214588] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 09/14/2022] [Revised: 10/21/2022] [Accepted: 10/26/2022] [Indexed: 07/30/2023] Open
Abstract
Our skin is an organ with the largest contact area between the human body and the external environment. Skin aging is affected directly by both endogenous factors and exogenous factors (e.g., UV exposure). Skin saccharification, a non-enzymatic reaction between proteins, e.g., dermal collagen and naturally occurring reducing sugars, is one of the basic root causes of endogenous skin aging. During the reaction, a series of complicated glycation products produced at different reaction stages and pathways are usually collectively referred to as advanced glycation end products (AGEs). AGEs cause cellular dysfunction through the modification of intracellular molecules and accumulate in tissues with aging. AGEs are also associated with a variety of age-related diseases, such as diabetes, cardiovascular disease, renal failure (uremia), and Alzheimer's disease. AGEs accumulate in the skin with age and are amplified through exogenous factors, e.g., ultraviolet radiation, resulting in wrinkles, loss of elasticity, dull yellowing, and other skin problems. This article focuses on the damage mechanism of glucose and its glycation products on the skin by summarizing the biochemical characteristics, compositions, as well as processes of the production and elimination of AGEs. One of the important parts of this article would be to summarize the current AGEs inhibitors to gain insight into the anti-glycation mechanism of the skin and the development of promising natural products with anti-glycation effects.
Collapse
Affiliation(s)
- Wenge Zheng
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, Nanjing 210009, China
| | - Huijuan Li
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, Nanjing 210009, China
| | - Yuyo Go
- Royal Victoria Hospital, BT12 6BA Belfast, Northern Ireland, UK
| | | | - Qing Huang
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, Nanjing 210009, China
| | - Jianxin Wu
- Skin Health and Cosmetic Development & Evaluation Laboratory, China Pharmaceutical University, Nanjing 210009, China
| |
Collapse
|
36
|
Wang GH, Ge Y, Wu J. Distilling Knowledge by Mimicking Features. IEEE Trans Pattern Anal Mach Intell 2022; 44:8183-8195. [PMID: 34379588 DOI: 10.1109/tpami.2021.3103973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Knowledge distillation (KD) is a popular method to train efficient networks ("student") with the help of high-capacity networks ("teacher"). Traditional methods use the teacher's soft logits as extra supervision to train the student network. In this paper, we argue that it is more advantageous to make the student mimic the teacher's features in the penultimate layer. Not only the student can directly learn more effective information from the teacher feature, feature mimicking can also be applied for teachers trained without a softmax layer. Experiments show that it can achieve higher accuracy than traditional KD. To further facilitate feature mimicking, we decompose a feature vector into the magnitude and the direction. We argue that the teacher should give more freedom to the student feature's magnitude, and let the student pay more attention on mimicking the feature direction. To meet this requirement, we propose a loss term based on locality-sensitive hashing (LSH). With the help of this new loss, our method indeed mimics feature directions more accurately, relaxes constraints on feature magnitudes, and achieves state-of-the-art distillation accuracy. We provide theoretical analyses of how LSH facilitates feature direction mimicking, and further extend feature mimicking to multi-label recognition and object detection.
Collapse
|
37
|
Qian P, Ma F, Zhang W, Cao D, Li L, Liu Z, Pei P, Zhang T, Wang S, Wu J. Chronic exercise remodels the lysine acetylome in the mouse hippocampus. Front Mol Neurosci 2022; 15:1023482. [PMID: 36385767 PMCID: PMC9650339 DOI: 10.3389/fnmol.2022.1023482] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 10/10/2022] [Indexed: 11/28/2022] Open
Abstract
Physical exercise benefits hippocampal function through various molecular mechanisms. Protein acetylation, a conserved and widespread post-translational modification, is involved in the synaptic plasticity and memory. However, whether exercise can change global acetylation and the role of acetylated proteins in the hippocampus have remained largely unknown. Herein, using healthy adult mice running for 6 weeks as exercise model and sedentary mice as control, we analyzed the hippocampal lysine acetylome and proteome by Liquid chromatography-tandem mass spectrometry. As a result, we profiled the lysine acetylation landscape for the hippocampus and identified 3,876 acetyl sites and 1,764 acetylated proteins. A total of 272 acetyl sites on 252 proteins were differentially regulated by chronic exercise, among which 18.58% acetylated proteins were annotated in mitochondria. These proteins were dominantly deacetylated and mainly associated with carbon-related metabolism, the Hippo signaling pathway, ribosomes, and protein processing. Meanwhile, 21 proteins were significantly expressed and enriched in the pathway of complement and coagulation cascades. Our findings provide a new avenue for understanding the molecular mechanisms underlying the benefits of exercise for hippocampal function and can contribute to the promotion of public health.
Collapse
Affiliation(s)
- Ping Qian
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Feifei Ma
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
| | - Wanyu Zhang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Dingding Cao
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
| | - Luya Li
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
| | - Zhuo Liu
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
| | - Pei Pei
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
| | - Ting Zhang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Shan Wang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
- *Correspondence: Shan Wang,
| | - Jianxin Wu
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
- Beijing Tongren Hospital, Capital Medical University, Beijing, China
- Jianxin Wu,
| |
Collapse
|
38
|
Chen S, Zeng X, Li Y, Qiu S, Peng X, Xie X, Liu Y, Liao C, Tang X, Wu J. The nuclear-encoded plastid ribosomal protein L18s are essential for plant development. Front Plant Sci 2022; 13:949897. [PMID: 36212366 PMCID: PMC9538462 DOI: 10.3389/fpls.2022.949897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 08/29/2022] [Indexed: 06/16/2023]
Abstract
Plastid ribosomal proteins (PRPs) are necessary components for plastid ribosome biogenesis, playing essential roles in plastid development. The ribosomal protein L18 involved in the assemble of 5S rRNA and 23S rRNA, is vital for E. coli viability, but the functions of its homologs in plant plastid remain elusive. Here, we characterized the functions of the plant plastid ribosomal protein L18s (PRPL18s) in Arabidopsis and rice. AtPRPL18 was ubiquitously expressed in most of the plant tissues, but with higher expression levels in seedling shoots, leaves, and flowers. AtPRPL18 was localized in chloroplast. Genetic and cytological analyses revealed that a loss of function of AtPRPL18 resulted in embryo development arrest at globular stage. However, overexpression of AtPRPL18 did not show any visible phenotypical changes in Arabidopsis. The rice OsPRPL18 was localized in chloroplast. In contrast to AtPRPL18, knockout of OsPRPL18 did not affect embryo development, but led to an albino lethal phenotype at the seedling stage. Cytological analyses showed that chloroplast development was impaired in the osprpl18-1 mutant. Moreover, a loss-function of OsPRPL18 led to defects in plastid ribosome biogenesis and a serious reduction in the efficiency of plastid intron splicing. In all, these results suggested that PRPL18s play critical roles in plastid ribosome biogenesis, plastid intron splicing, and chloroplast development, and are essential for plant survival.
Collapse
Affiliation(s)
- Shujing Chen
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Xinhuang Zeng
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Yiqi Li
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Shijun Qiu
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Xiaoqun Peng
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Xinjue Xie
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Yujie Liu
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Chancan Liao
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Xiaoyan Tang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong, China
- Shenzhen Institute of Molecular Crop Design, Shenzhen, China
| | - Jianxin Wu
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, China
| |
Collapse
|
39
|
Liu K, Ju W, Ouyang S, Liu Z, He F, hao J, Guan H, Wu J. Exercise training ameliorates myocardial phenotypes in heart failure with preserved ejection fraction by changing N6-methyladenosine modification in mice model. Front Cell Dev Biol 2022; 10:954769. [PMID: 36120562 PMCID: PMC9478036 DOI: 10.3389/fcell.2022.954769] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Abstract
Heart failure with preserved ejection fraction (HFpEF) shows complicated and not clearly defined etiology and pathogenesis. Although no pharmacotherapeutics have improved the survival rate in HFpEF, exercise training has become an efficient intervention to improve functional outcomes. Here, we investigated N6-methyladenosine (m6A) RNA methylation modification in a “two-hit” mouse model with HFpEF and HFpEF with exercise (HFpEF + EXT). The manner of m6A in HFpEF and HFpEF + EXT hearts was explored via m6A-specific methylated RNA immunoprecipitation followed by high-throughput and RNA sequencing methods. A total amount of 3992 novel m6A peaks were spotted in HFpEF + EXT, and 426 differently methylated sites, including 371 hypermethylated and 55 hypomethylated m6A sites, were singled out for further analysis (fold change >2, p < 0.05). According to gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses, unique m6A-modified transcripts in HFpEF + EXT were associated with apoptosis-related pathway and myocardial energy metabolism. HFpEF + EXT had higher total m6A levels and downregulated fat mass and obesity-related (FTO) protein levels. Overexpression of FTO cancels out the benefits of exercise in HFpEF + EXT mice by promoting myocyte apoptosis, myocardial fibrosis and myocyte hypertrophy. Totally, m6A is a significant alternation of epitranscriptomic processes, which is also a potentially meaningful therapeutic target.
Collapse
Affiliation(s)
- Kai Liu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics-Peking University Teaching Hospital, Beijing, China
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Beijing, China
| | - Wenhao Ju
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
| | - Shengrong Ouyang
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Beijing, China
| | - Zhuo Liu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Beijing, China
| | - Feng He
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Beijing, China
| | - Jingyi hao
- Beijing TongRen Hospital, Capital Medical University, Beijing, China
| | - Hongyan Guan
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Beijing, China
| | - Jianxin Wu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics-Peking University Teaching Hospital, Beijing, China
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Beijing, China
- Graduate School of Peking Union Medical College, Beijing, China
- Beijing TongRen Hospital, Capital Medical University, Beijing, China
- *Correspondence: Jianxin Wu,
| |
Collapse
|
40
|
Xiao Z, He F, Feng M, Liu Z, Liu Z, Li S, Wang W, Yao H, Wu J. Engineered coxsackievirus B3 containing multiple organ-specific miRNA targets showed attenuated viral tropism and protective immunity. Infect Genet Evol 2022; 103:105316. [PMID: 35718333 DOI: 10.1016/j.meegid.2022.105316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 11/30/2021] [Revised: 05/07/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
Coxsackievirus B3 (CVB3) can cause viral myocarditis, pancreatitis, and aseptic meningitis. This study aimed to construct an engineered CVB3 harboring three different tissue-specific miRNA targets (CVB3-miR3*T) to decrease the virulence of CVB3 in muscles, pancreas, and brain. CVB3-miR3*T and CVB3-miR-CON (containing three sequences not found in the human genome) were engineered and replicated in HELA cells. A viral plaque assay was used to determine the titers in HELA cells and TE671 cells (high miRNA-206 expression), MIN-6 cells (high miRNA-29a-3p expression), and mouse astrocytes (high miRNA-124-3p expression). We found that engineered CVB3 showed attenuated replication and reduced cytotoxicity, the variability of each type of cell was also increased in the CVB3-miR3*T group. Male BALB/c mice were infected to determine the LD50 and examine heart, pancreas, and brain titers and injury. Viral replication of the engineered viruses was restricted in infected mouse heart, pancreas, and brain, and viral plaques were about 100 fold lower compared with the control group. Mice immunized using CVB3-miR3*T, UV-inactivated CVB3-WT, and CVB3-miR-CON were infected with 100 × LD50 of CVB3-WT to determine neutralization. CVB3-miRT*3-preimmunized mice exhibited complete protection and remained alive after lethal virus infection, while only 5/15 were alive in the UV-inactivated mice, and all 15 mice were dead in the PBS-immunized group. The results demonstrate that miR-206-, miRNA-29a-3p-, and miRNA-124-3p-mediated CVB3 detargeting from the pancreas, heart, and brain might be a highly effective strategy for viral vaccine development.
Collapse
Affiliation(s)
- Zonghui Xiao
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Feng He
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Miao Feng
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Zhuo Liu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Zhewei Liu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Sen Li
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Wei Wang
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China
| | - Hailan Yao
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China.
| | - Jianxin Wu
- Department of Biochemistry and Immunology, Capital Institute of Pediatrics, Beijing, China; Beijing Municipal Key Laboratory of Child Development and Nutriomics, Beijing, China; Beijing Tongren Hospital, Capital Medical University, Beijing, China.
| |
Collapse
|
41
|
Xie P, Wu J, Zhang L, Wang G, Jin X. Resolution Enhancement for Millimeter-Wave Radar ROI Image with Bayesian Compressive Sensing. Sensors (Basel) 2022; 22:5757. [PMID: 35957314 PMCID: PMC9370933 DOI: 10.3390/s22155757] [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] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/19/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
For millimeter-wave (MMW) imaging security systems, the image resolution promisingly determines the performance of suspicious target detection and recognition. Conventional synthetic aperture radar (SAR) imaging algorithms only provide limited resolution in active MMW imaging, which is limited by the system. In terms of enhancing the resolution of a region of interest (ROI) image containing suspicious targets, super-resolution (SR) imaging is adopted via Bayesian compressive sensing (BCS) implemented by fast Fourier transform (FFT). The spatial sparsity of MMW ROI images is well exploited with BCS to achieve resolution enhancement without computational cost. Both simulated and measured experiments confirm that the proposed scheme effectively improves the resolution of ROI images.
Collapse
Affiliation(s)
- Pengfei Xie
- School of Electronics and Communication Engineering, Sun Yat-Sen University, Shenzhen 518107, China; (P.X.); (L.Z.)
| | - Jianxin Wu
- School of Electronics and Communication Engineering, Sun Yat-Sen University, Shenzhen 518107, China; (P.X.); (L.Z.)
| | - Lei Zhang
- School of Electronics and Communication Engineering, Sun Yat-Sen University, Shenzhen 518107, China; (P.X.); (L.Z.)
| | - Guanyong Wang
- Beijing Institute of Radio Measurement, Beijing 100854, China;
| | - Xue Jin
- Beijing Institute of Tracking and Telecommunication Technology, Beijing 100094, China;
| |
Collapse
|
42
|
Liu X, Wu J, Tang Z, Wu J, Huang Z, Yin X, Du J, Lin X, Lin W, Yi G. Photoreversible Bond-Based Shape Memory Polyurethanes with Light-Induced Self-Healing, Recyclability, and 3D Fluorescence Encryption. ACS Appl Mater Interfaces 2022; 14:33829-33841. [PMID: 35830501 DOI: 10.1021/acsami.2c07767] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Developing a shape memory polyurethane with high mechanical properties, excellent self-healing has become a huge challenge for the development of smart materials. Herein, we report the design and fabrication of a shape memory polyurethane network terminated with coumarin units (HEOMC-PU) to address this conundrum. The synthesized HEOMC-PU exhibits exceptional mechanical performance with a breaking elongation of 746% and toughness of 55.5 MJ·m-3. By utilizing the dynamically reversible behavior of coumarin units to repair the damaged network, the efficient self-healing performance (99.2%) of HEOMC-PU is obtained. In addition, the prepared network and light-induced dynamic reversibility endow the HEOMC-PU with both liquid-state remoldability and solid-state plasticity, respectively, enabling polyurethane to be recycled and processed multiple times. Furthermore, based on the fluorescence responsive characteristic of coumarin, HEOMC-PU with a fluorescent pattern can be deformed into specific three-dimensional configurations by combining photolithography, self-healing, and the shape memory effect. Such a multilevel and multidimensional anti-counterfeiting platform with rewritable fluorescent patterns and reconfigurable shapes can open up a new encryption approach for future intelligent anti-counterfeiting.
Collapse
Affiliation(s)
- Xiaochun Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Jianyu Wu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Zilun Tang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Jianxin Wu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Zhiyi Huang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Xingshan Yin
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Jiahao Du
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaofeng Lin
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory (Rongjiang Laboratory), Jieyang 515200, China
| | - Wenjing Lin
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory (Rongjiang Laboratory), Jieyang 515200, China
| | - Guobin Yi
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
- Jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory (Rongjiang Laboratory), Jieyang 515200, China
| |
Collapse
|
43
|
Wu J, Nicks AM, Skowno JJ, Feneley MP, Graham RM, Iismaa SE. Anesthesia and Intubation of Preadolescent Mouse Pups for Cardiothoracic Surgery. J Vis Exp 2022. [DOI: 10.3791/64004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
|
44
|
Yang S, Ning G, Hou Y, Cao Y, Xu J, Wu J, Zhang T, Wang Q. Myoneurin regulates BMP signaling by competing with Ppm1a for Smad binding. iScience 2022; 25:104495. [PMID: 35712083 PMCID: PMC9194458 DOI: 10.1016/j.isci.2022.104495] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 04/07/2022] [Accepted: 05/23/2022] [Indexed: 11/25/2022] Open
Abstract
A delicate balance of BMP activity is critical for tissue formation and organogenesis. However, the mechanical molecular details in ensuring the proper duration and intensity of BMP signaling have yet to be fully elucidated. Here, we identified a zebrafish mutant with a disrupted gene encoding for the BTB/POZ and zinc finger protein myoneurin (Mynn). mynn−/− mutants exhibited severe loss of pharyngeal cartilage elements, owing to poor proliferation, blocked differentiation, and low viability of cranial neural crest cells. Depletion of mynn in both zebrafish embryos and mammalian cells led to a reduction of the BMP signal activity. Mechanistically, Mynn interacts with Smad proteins in the nucleus, thereby disrupting the association between Smad protein and the phosphatase Ppm1a. Ultimately, this interaction prevents Smad dephosphorylation. More broadly, our findings may provide a new strategy to balance BMP signal activity via competitive binding of Mynn and Ppm1a to Smad proteins during pharyngeal cartilage formation. mynn gene is essential for pharyngeal cartilage development mynn is required for the proliferation, differentiation, and survival of the CNCCs Mynn has an evolutionarily conserved function in supporting BMP signal Mynn maintains BMP signal activity by competing with Ppm1a for Smad binding
Collapse
|
45
|
Xiong F, Xiao Y, Cao Z, Wang Y, Zhou JT, Wu J. ECML: An Ensemble Cascade Metric-Learning Mechanism Toward Face Verification. IEEE Trans Cybern 2022; 52:1736-1749. [PMID: 32520713 DOI: 10.1109/tcyb.2020.2996207] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Face verification can be regarded as a two-class fine-grained visual-recognition problem. Enhancing the feature's discriminative power is one of the key problems to improve its performance. Metric-learning technology is often applied to address this need while achieving a good tradeoff between underfitting, and overfitting plays a vital role in metric learning. Hence, we propose a novel ensemble cascade metric-learning (ECML) mechanism. In particular, hierarchical metric learning is executed in a cascade way to alleviate underfitting. Meanwhile, at each learning level, the features are split into nonoverlapping groups. Then, metric learning is executed among the feature groups in the ensemble manner to resist overfitting. Considering the feature distribution characteristics of faces, a robust Mahalanobis metric-learning method (RMML) with a closed-form solution is additionally proposed. It can avoid the computation failure issue on an inverse matrix faced by some well-known metric-learning approaches (e.g., KISSME). Embedding RMML into the proposed ECML mechanism, our metric-learning paradigm (EC-RMML) can run in the one-pass learning manner. The experimental results demonstrate that EC-RMML is superior to state-of-the-art metric-learning methods for face verification. The proposed ECML mechanism is also applicable to other metric-learning approaches.
Collapse
|
46
|
Yu ZY, Gong H, Kesteven S, Guo Y, Wu J, Li J, Iismaa S, Kaidonis X, Graham RM, Cox CD, Feneley MP, Martinac B. Piezo1 and TRPM4 work in tandem to initiate cardiac hypertrophic signalling in response to pressure overload. Biophys J 2022. [DOI: 10.1016/j.bpj.2021.11.321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
|
47
|
Yu L, Liu Y, Wu J, Wang S, Yu J, Wang W, Ye X. Genipin Cross-Linked Decellularized Nucleus Pulposus Hydrogel-Like Cell Delivery System Induces Differentiation of ADSCs and Retards Intervertebral Disc Degeneration. Front Bioeng Biotechnol 2022; 9:807883. [PMID: 35004657 PMCID: PMC8733700 DOI: 10.3389/fbioe.2021.807883] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 12/03/2021] [Indexed: 01/08/2023] Open
Abstract
Intervertebral disc degeneration (IDD) is the pathological basis of disc degenerative diseases (DDD). Reduction in the number of cells and degeneration of the extracellular matrix (ECM) in the nucleus pulposus (NP) are characteristics of IDD. Bio-hydrogel combined with stem cell transplantation is a promising treatment. Injectable ECM hydrogels have good biological activity and in-situ gelatinization. However, its biomechanics and stability are insufficient to provide adequate mechanical support for intervertebral discs and to maintain the long-term differential stimulus for seeded stem cells. In our study, we developed genipin cross-linked decellularized nucleus pulposus hydrogel (GDH) as delivery system. We evaluated the mechanical properties, stability, biocompatibility, and differentiation induction of GDH cross-linked with different concentrations of genipin in vitro. The GDH-loaded adipose-derived mesenchymal stem cells (ADSCs) (GDHA) were injected into the rat degenerated coccygeal intervertebral disc. The effect of intervertebral disc regeneration in vivo was evaluated. The results showed that GDH with 0.02% of genipin had similar elastic modulus to human nucleus pulposus, good biocompatibility, and inducibility of expressing NP-related genes. In vivo studies showed that GDHA improved the survival of ADSCs and improved the intervertebral height, MRI index, and histological grading score. In conclusion, GDH, as an outstanding bio-hydrogel cell delivery system, has the therapeutic potential for retarding IDD.
Collapse
Affiliation(s)
- Lei Yu
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Yi Liu
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Jianxin Wu
- Department of Orthopedics, First Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Shuang Wang
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Jiangming Yu
- Department of Orthopaedics, Tongren Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Weiheng Wang
- Department of Orthopedics, Second Affiliated Hospital of Naval Medical University, Shanghai, China
| | - Xiaojian Ye
- Department of Orthopaedics, Tongren Hospital, Shanghai Jiaotong University, Shanghai, China
| |
Collapse
|
48
|
Liu K, Wang T, Wu J, Chen J. A Two-Stage STAP Method Based on Fine Doppler Localization and Sparse Bayesian Learning in the Presence of Arbitrary Array Errors. Sensors (Basel) 2021; 22:s22010077. [PMID: 35009630 PMCID: PMC8747692 DOI: 10.3390/s22010077] [Citation(s) in RCA: 5] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/13/2021] [Accepted: 12/20/2021] [Indexed: 11/16/2022]
Abstract
In the presence of unknown array errors, sparse recovery based space-time adaptive processing (SR-STAP) methods usually directly use the ideal spatial steering vectors without array errors to construct the space-time dictionary; thus, the steering vector mismatch between the dictionary and clutter data will cause a severe performance degradation of SR-STAP methods. To solve this problem, in this paper, we propose a two-stage SR-STAP method for suppressing nonhomogeneous clutter in the presence of arbitrary array errors. In the first stage, utilizing the spatial-temporal coupling property of the ground clutter, a set of spatial steering vectors with array errors are well estimated by fine Doppler localization. In the second stage, firstly, in order to solve the model mismatch problem caused by array errors, we directly use these spatial steering vectors obtained in the first stage to construct the space-time dictionary, and then, the constructed dictionary and multiple measurement vectors sparse Bayesian learning (MSBL) algorithm are combined for space-time adaptive processing (STAP). The proposed SR-STAP method can exhibit superior clutter suppression performance and target detection performance in the presence of arbitrary array errors. Simulation results validate the effectiveness of the proposed method.
Collapse
Affiliation(s)
- Kun Liu
- National Lab of Radar Signal Processing, Xidian University, Xi’an 710071, China; (K.L.); (J.C.)
| | - Tong Wang
- National Lab of Radar Signal Processing, Xidian University, Xi’an 710071, China; (K.L.); (J.C.)
- Correspondence:
| | - Jianxin Wu
- School of Electronics and Communication Engineering, Sun Yat-sen University, Guangzhou 510275, China;
| | - Jinming Chen
- National Lab of Radar Signal Processing, Xidian University, Xi’an 710071, China; (K.L.); (J.C.)
| |
Collapse
|
49
|
Zhou L, Qu X, Zhang T, Wu J, Yin H, Guan H, Luo Y. Prediction of pediatric activity intensity with wearable sensors and bi-directional LSTM models. Pattern Recognit Lett 2021. [DOI: 10.1016/j.patrec.2021.08.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
50
|
Wang X, Liu Z, Sun S, Wu J, Li R, Wang H, Cui X. SISTER OF TM3 activates FRUITFULL1 to regulate inflorescence branching in tomato. Hortic Res 2021; 8:251. [PMID: 34848688 PMCID: PMC8633288 DOI: 10.1038/s41438-021-00677-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 07/19/2021] [Accepted: 08/02/2021] [Indexed: 05/19/2023]
Abstract
Selection for favorable inflorescence architecture to improve yield is one of the crucial targets in crop breeding. Different tomato varieties require distinct inflorescence-branching structures to enhance productivity. While a few important genes for tomato inflorescence-branching development have been identified, the regulatory mechanism underlying inflorescence branching is still unclear. Here, we confirmed that SISTER OF TM3 (STM3), a homolog of Arabidopsis SOC1, is a major positive regulatory factor of tomato inflorescence architecture by map-based cloning. High expression levels of STM3 underlie the highly inflorescence-branching phenotype in ST024. STM3 is expressed in both vegetative and reproductive meristematic tissues and in leaf primordia and leaves, indicative of its function in flowering time and inflorescence-branching development. Transcriptome analysis shows that several floral development-related genes are affected by STM3 mutation. Among them, FRUITFULL1 (FUL1) is downregulated in stm3cr mutants, and its promoter is bound by STM3 by ChIP-qPCR analysis. EMSA and dual-luciferase reporter assays further confirmed that STM3 could directly bind the promoter region to activate FUL1 expression. Mutation of FUL1 could partially restore inflorescence-branching phenotypes caused by high STM3 expression in ST024. Our findings provide insights into the molecular and genetic mechanisms underlying inflorescence development in tomato.
Collapse
Affiliation(s)
- Xiaotian Wang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Sino-Dutch Joint Laboratory of Horticultural Genomics, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Zhiqiang Liu
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Sino-Dutch Joint Laboratory of Horticultural Genomics, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Shuai Sun
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Sino-Dutch Joint Laboratory of Horticultural Genomics, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jianxin Wu
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Sino-Dutch Joint Laboratory of Horticultural Genomics, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Ren Li
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Sino-Dutch Joint Laboratory of Horticultural Genomics, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Haijing Wang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- Sino-Dutch Joint Laboratory of Horticultural Genomics, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xia Cui
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
- Sino-Dutch Joint Laboratory of Horticultural Genomics, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| |
Collapse
|