Article
Agronomy
Shuo Liu, Yu Bao, Hui Deng, Guanqing Liu, Yangshuo Han, Yuechao Wu, Tao Zhang, Chen Chen
Summary: DNA methylation is a crucial epigenetic modification that regulates gene expression and genome stability. The methylation inhibitor, AzaD, can effectively reduce genome-wide hypomethylation and cause a series of epigenetic variations.
Article
Biochemistry & Molecular Biology
Karolina Luczkowska, Piotr Kulig, Klaudia Rusinska, Bartlomiej Baumert, Boguslaw Machalinski
Summary: This study investigates the effects of a methylation inhibitor on the proliferation of multiple myeloma cells and the development of resistance to treatment, finding that alterations in DNA methylation are associated with drug resistance.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biology
Hitomi Matsuzaki, Yu Miyajima, Akiyoshi Fukamizu, Keiji Tanimoto
Summary: The study reveals that the polarity of the H19 ICR plays a crucial role in controlling imprinted H19 gene expression on each parental allele, regardless of the presence of DNA methylation on the H19 promoter.
COMMUNICATIONS BIOLOGY
(2021)
Article
Oncology
Yang-Jie Zhang, Ran Xie, Jie Jiang, Li Zhai, Cong-Hui Yang, Jing Zhang, Xi Wang, Dong-Xue Chen, Hua-Tao Niu, Long Chen
Summary: The study demonstrates the methylation modification of GAS5 in melanoma and the reversible effect of 5-Aza-dC on this modification. Treatment with 5-Aza-dC inhibits cell proliferation, increases apoptosis, and reduces migration and invasion in melanoma cells. The antitumor effect of 5-Aza-dC in melanoma is related to the methylation modification of GAS5.
Article
Environmental Sciences
Gerhard P. Aigner, Pamela Nenning, Birgit Fiechtner, Maja Srut, Martina Hoeckner
Summary: This study found that the demethylating agent Aza inhibits gene activity while Cd induces MT2 gene expression, but neither has an effect on global DNA methylation levels. Thus, Cd detoxification based on MT2 induction is not related to changes in DNA methylation.
Review
Oncology
Huanhuan Chen, Lei Zhang, Li Meng, Linlin Liang, Cuilian Zhang
Summary: Cryopreservation is an important aspect of assisted reproductive technology. The vitrification method has been widely used and has shown improved outcomes in terms of cell survival rate, preimplantation development rate, and pregnancy outcomes. However, the use of high-concentration cryoprotectants and ultra-rapid cooling in vitrification may cause adverse effects on gametes, embryos, and tissue cells. Imprinted genes, which are regulated by epigenetic modifications, play a crucial role in placenta, fetal development, and offspring health. The impact of cryopreservation techniques, especially vitrification, on imprinted genes has been found in animal studies but has limited evidence in humans.
CLINICAL EPIGENETICS
(2022)
Article
Multidisciplinary Sciences
Ji Liao, Sangmin Song, Samuel Gusscott, Zhen Fu, Ivan Vanderkolk, Brianna M. Busscher, Kin H. Lau, Julie Brind Amour, Piroska E. Szabo
Summary: This study provides experimental evidence in mice that prospermatogonia-specific broad low-level transcription plays a crucial role in the establishment of paternal methylation imprint in the male germline.
Article
Multidisciplinary Sciences
Reem Miari, Naiel Azzam, Rinat Bar-Shalom, Fuad Fares
Summary: 5-Aza-2'-deoxycytidine has shown effectiveness in treating HPV(-) HNSCC by inhibiting proliferation and inducing apoptosis. Future studies are needed to clarify the molecular mechanism of action of 5-AzaD in HPV(-) cancer cells.
Article
Endocrinology & Metabolism
Ningling Wang, Xinxi Zhao, Meng Ma, Qianqian Zhu
Summary: The study found that there was a significant increase in live birth rate and birth weight after transfer of single good quality embryo on day 5 and day 6 compared with transfer of single good quality embryo on day 3 in vitrified embryo transfer cycles.
FRONTIERS IN ENDOCRINOLOGY
(2021)
Review
Pharmacology & Pharmacy
William B. Parker, Jaideep V. Thottassery
Summary: DNMT1 depletion is a rational goal in DNA methylation-dependent disorders, and current agents like decitabine and azacitidine have off-target activities limiting their use. Aza-T-dCyd is a promising candidate with less toxicity and higher therapeutic index for selectively depleting DNMT1. Further research is needed to understand its mechanism of action and potential clinical applications.
JOURNAL OF PHARMACOLOGY AND EXPERIMENTAL THERAPEUTICS
(2021)
Article
Immunology
Shramana M. Banerjee, Pilar Acedo, Soha El Sheikh, Rania Harati, Amelia Meecham, Norman R. Williams, Gareth Gerard, Mohammed R. S. Keshtgar, Alexander J. Macrobert, Rifat Hamoudi
Summary: Functional experiments showed that combining 5-ADC and PDT had a synergistic effect in vitro and increased cytotoxicity in TNBC 4T1 tumor cells. Treatment with 5-ADC/PDT showed histopathologically defined margins of necrosis and increased T cell expression, indicating an anti-tumor immune response. Bioinformatics analysis identified altered immune response biomarkers in TNBC compared to other breast cancer subtypes.
FRONTIERS IN IMMUNOLOGY
(2023)
Article
Oncology
Gordon Greville, Esther Llop, Jane Howard, Stephen F. Madden, Antoinette S. Perry, Rosa Peracaula, Pauline M. Rudd, Amanda McCann, Radka Saldova
Summary: This study demonstrates that the DNA methyltransferase inhibitor 5-AZA-dC can increase branching and sialylation of N-glycans in cancer cells, and regulates glycosyltransferases through GATA transcription factors. Treated cells, especially in chemo-sensitive cell lines, showed increased migration and apoptotic markers. The findings provide insight into the impact of epigenetic alterations on cancer cell glycosylation.
CLINICAL EPIGENETICS
(2021)
Article
Obstetrics & Gynecology
Eric Rhon-Calderon, Cassidy Hemphill, Lisa Vrooman, Casey Rosier, Yemin Lan, Teri Ord, Christos Coutifaris, Monica Mainigi, Richard Schultz, Marisa Bartolomei
Summary: TEBx affects the health of the placenta and embryo during early development, with some changes improving later in development and others worsening, leading to metabolic changes in adult offspring.
HUMAN REPRODUCTION
(2023)
Article
Multidisciplinary Sciences
Victor D. Martinez, Adam P. Sage, Brenda C. Minatel, Erin A. Marshall, E. Magda Price, Daiana D. Becker-Santos, Wendy P. Robinson, Wan L. Lam
Summary: The study reveals that 297 piRNAs are preferentially expressed in the human placenta, with some being expressed at higher levels compared to testes samples. The majority of placental piRNAs originate from a single locus, distinct from canonical cluster locations associated with transposable element silencing. Additionally, 15 of the highest-expressed placental piRNAs map to the DLK1-DIO3 locus, suggesting a link to placental biology.
SCIENTIFIC REPORTS
(2021)
Article
Oncology
Tomonori Araki, Kensuke Hamada, Aung Bhone Myat, Hideki Ogino, Kohei Hayashi, Miho Maeda, Ying Tong, Yasufumi Murakami, Kazuhiko Nakao, Mitsuko Masutani
Summary: The combined treatment of 5-aza-dC and PARP inhibitor shows stronger cytotoxicity in human cancer cells. 5-aza-dC induces DNA single strand breaks and global genome DNA demethylation, while PARP inhibitor does not. The combination treatment results in distinct changes in gene expression profiles compared to single treatments.
Article
Engineering, Aerospace
Xingyu Zhou, Tong Qin, Mingjiang Ji, Dong Qiao
Summary: This paper proposes a novel framework for efficiently solving continuously maneuvering spacecraft orbit determination (OD) problems. It combines the Long Short-Term Memory (LSTM) neural network and filter algorithms. The LSTM is trained to detect unknown maneuvers and estimate coefficients of a polynomial representation for a more accurate estimation. The framework is successfully applied to solve Low-Earth-orbit and Middle-Earth-orbit OD problems, accurately tracking maneuvering targets and estimating unknown maneuvers. Numerical simulations show the LSTM can be applied to scenarios with common features to the training dataset.
Article
Chemistry, Medicinal
Tong Qin, Xuefeng Gao, Lei Lei, Wenxuan Zhang, Jing Feng, Xing Wang, Zhufang Shen, Zhenming Liu, Yi Huan, Song Wu, Jie Xia, Liangren Zhang
Summary: In this study, 52 derivatives were designed and synthesized to evaluate their FXR transactivation activity. Twelve FXR agonists showed superior or comparable activity to XJ034, and two compounds had over 9-fold activity and were as potent as OCA. The lead compound, adamantan-1-yl(4-(2-amino-5-chlorophenyl)piperazin-1-yl)methanone (10a, EC50: 1.05 mu M), exhibited better efficacy in improving NAFLD in a mouse model compared to XJ034.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2023)
Article
Engineering, Electrical & Electronic
Xiaonan Li, Wenxu Zhang, Hong Wang, Xiping Ma, Hongliang Zhang, Kangle Li, Tong Qin, Kai Liu, Yan Yang, Guangning Wu
Summary: This paper investigates the effect of partial discharge on oil-impregnated Nomex paper in high-frequency transformers. The study analyzes the surface morphology and damage mechanism, finding that the damage degree of oil-paper insulation under high-frequency stress is higher due to the destruction of the benzene ring.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Materials Science, Ceramics
Qin Tong, Song Liu, Jichuan Huo, Xingquan Zhang, Yongchang Zhu, Aiming Zhang
Summary: Simulated actinides basaltic glasses were prepared using Nd, Ce and La to simulate Am, Np and U in a Chinese power reactor. The results showed that up to 36 wt.% of simulated actinides can be loaded in the glasses, with excess leading to oxyapatite crystal precipitation. Approximately half of Ce4+ was reduced to Ce3+, and the simulated actinides had no serious effects on Si-O bonds in glass networks. The thermal stability of the glasses initially increased with the content of simulated actinides, but decreased when the content exceeded 25 wt.%. All the samples exhibited good leaching resistance, with Nd, Ce and La leaching rates 4 orders of magnitude lower than Si and Na.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Article
Materials Science, Multidisciplinary
Qin Tong, Song Liu, Jichuan Huo, Xingquan Zhang, Haifeng Liu, Kui Zheng, Zhu Cui, Yongchang Zhu
Summary: The Nd3+-basaltic glass was prepared to simulate trivalent actinides. The structure, thermal stability, and leaching characteristics of the glass were investigated by XRD, SEM-EDX, Raman, and DSC. The results showed that up to 30 wt.% of Nd2O3 can be loaded in the glass, and oxy-silicate apatite precipitates when the Nd2O3 content reaches 32 wt.%. The addition of Nd2O3 affects the Si-O-Si bond but has little effect on the glass network structure. The leaching resistance of the glass was evaluated by the ASTM PCT Method and showed good performance, with Na showing the highest mass loss after 28 days.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Pharmacology & Pharmacy
Qihong Yang, Tong Qin, Tao An, Hongna Wu, Gang Xu, Jin Xiang, Kangfan Lei, Shaohua Zhang, Jie Xia, Guifeng Su, Dan Wang, Minggao Xue, Lingmei Kong, Wenxuan Zhang, Song Wu, Yan Li
Summary: In this study, researchers designed a series of pyridonyl acetamide compounds and discovered a novel PORCN inhibitor WHN-88 with a unique di-iodinated pyridone structural fragment. WHN-88 effectively abolished palmitoylation of Wnt ligands and prevented their secretion and the subsequent Wnt/13-catenin signaling transduction. Furthermore, WHN-88 demonstrated potent efficacy against Wnt-driven cancers and inhibited cancer cell stemness.
EUROPEAN JOURNAL OF PHARMACOLOGY
(2023)
Review
Forestry
Tong Qin, Liqin Liu, Haibing Cao, Shuangxi Nie, Bin Lu, Zhengbai Cheng, Hongbin Liu, Xingye An
Summary: This paper discusses and reviews the mechanisms of tissue creping technology, as well as the factors that impact the creping process and tissue properties. It is indicated that the creping process can be significantly enhanced through the concerted efforts of various factors. However, further endeavors are necessary to address the constraints stemming from the pilot experimental equipment and data, as well as modeling simulation, to enable a more comprehensive examination of the creping process and its mechanism.
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS
(2023)
Article
Optics
Lintao Peng, Siyu Xie, Tong Qin, Lu Cao, Liheng Bian
Summary: Recently developed image-free sensing techniques are highly effective in various vision tasks, but they still struggle to obtain comprehensive information about objects. In this study, we introduce a novel image-enabled approach that allows efficient and accurate multi-object detection from a limited number of measurements without the need for complex image reconstruction. By optimizing pattern sampling and using a transformer-based network design, our proposed method achieves superior image-free sensing accuracy and object detection performance. Experimental results on the Voc dataset demonstrate an 82.41% mAP detection accuracy at a 5% sampling rate and 63 f.p.s. refresh rate.
Article
Optics
Liheng Bian, Xin Wang, Xuyang Chang, Zhijie Gao, Tong Qin
Summary: In this Letter, we report an iterative framework for noise-robust phase retrieval with high fidelity. By investigating nonlocal structural sparsity in the complex domain and using low-rank regularization, artifacts caused by noise are effectively suppressed. The joint optimization of sparsity regularization and data fidelity with forward models enables satisfying detail recovery.
Article
Green & Sustainable Science & Technology
Shangwen Liu, Shijie Zhou, Hao Guan, Qian-Ming Zhang, Tong Qin, Jiarong Lin
Summary: This paper provides a comprehensive analysis of the relationship between customers' quality preference for product-service, R&D investment, and product-service price. The results show that an enterprise's absorptive capacity positively influences market demand and profit, while negatively impacting competitors. A higher customers' quality preference coefficient indicates a stronger competitive advantage. Implementing a non-cooperative R&D strategy helps enterprises expand their R&D investment scale and accumulate knowledge and technology, leading to increased sales volume and profits. The paper suggests that enterprises should focus on improving absorptive capacity, diversifying R&D strategy, and considering customers' quality preferences and market demand when making R&D investment decisions.
Article
Chemistry, Physical
Sen Liang, Ting Cai, Jing Yuan, Qin Tong, Xiaojun Hu
Summary: Co-based catalyst is an effective catalyst for degrading VC due to its excellent chlorine resistance. High-performance CoxBa1 catalysts were prepared by doping Ba into Co3O4 and changing the Ba/Co mol ratio. The addition of BaCO3 in CoxBa1 reduces its particle size, increases the active site, and improves its low-temperature reducibility. Furthermore, BaCO3 increases the basic sites of CoxBa1, which effectively protects Co3O4 from Cl poisoning. Co19Ba1, with the highest BaCO3 content at Ba/Co 1/19, exhibits the best catalytic activity.
CHEMICAL PHYSICS IMPACT
(2023)
Article
Chemistry, Analytical
Huihui Shao, Jing Feng, Hanyilan Zhang, Yuanyuan Zhang, Tong Qin, Yuhua Hu, Wenxuan Zhang, Tiesong Wang, Song Wu, Qingyun Yang
Summary: In this study, the development and validation of reliable and selective HPLC and HPLC-MS/MS methods for the quantitative analysis of impurities in the drug IMM were described. Five minor impurities were identified and analyzed using spectroscopic evidence, chemical synthetic methods, and LC-MS/MS. The methods showed satisfactory linearity, precision, and repeatability, and the recommended procedures were applied to the existing active pharmaceutical ingredients of IMM, generating satisfactory results.
JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY
(2023)
Article
Veterinary Sciences
Ying Liu, Yanlong Su, Zhijie Zhou, Jie Zhu, Qianqian Zhu, Peng Xie, Shiquan Qian, Liwei Wang, Tong Qin, Gang Zhou
Summary: The study investigated the immune activity and molecular mechanisms related to the hygiene hypothesis in Meishan pigs raised under normal captivity or free-range conditions. Significant differences in cytokine levels and gene expression profiles were observed between the two groups. The identification of specific genes and metabolites associated with immune-related pathways provides new insight into the regulation of cellular immunity and the hygiene hypothesis.
FRONTIERS IN VETERINARY SCIENCE
(2023)
Article
Chemistry, Organic
Min Zeng, Fuli Huang, Minghui Zhu, Jichao Ding, Tong Qin, Maoting Xu, Wanqing Liu, Jun Lu, Jicheng Wu, Xurong Qin, Qiao Ren
Summary: Despite the availability of chemical feedstocks, developing useful cross-coupling reactions with methyl esters as acyl electrophiles is still challenging due to their chemical inertness. We present a simple nickel-catalyzed intramolecular alkene hydroacylation method for the efficient synthesis of various medicinally active indanone and indazolone derivatives. This approach offers good functional group tolerance, easy post-synthetic modifications, total synthesis, and fluorescent probe synthesis. Preliminary in vitro antioxidant evaluation reveals promising free radical scavenging activities of 2-(4-dimethylaminophenyl)-1-indanone and 2-aryl-3-indazolone derivatives.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Correction
Materials Science, Composites
C. Li, J. Huang, T. Qin, C. Chen, L. Gao, J. Xu
JOURNAL OF COMPOSITE MATERIALS
(2023)